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Please select the most similar patent number from A, B, C and D. Which number is? A fan, comprising a housing and a water tank provided with a through-hole (21) and used for storing a liquid, further comprising a closure cap (3) used for closing said through-hole (21). The fan is provided with the closure cap (3) used for closing the through-hole (21) on the tank opening, thereby preventing the liquid in the water tank from leaking out of the through-hole. A: A decorative lamp, comprising a housing (1), a circuit board (2) fixed inside the housing and provided with a lamp (21), a bottle (3) fixed inside the top of the housing and internally provided with liquid, a stopper (4) used for closing the mouth of the bottle, and a lid (5) encasing the stopper. The decorative lamp comprises a housing, a circuit board fixed inside the housing and provided with a lamp, a bottle fixed inside the top of the housing and internally provided with liquid, a stopper used for closing the mouth of the bottle, and a lid encasing the stopper; the cap is sleeved on the stopper, preventing damage to the stopper and ensuring a tight fit between the mouth of the bottle and the stopper, thus preventing the stopper from becoming loose and leaking liquid. B: A decorative lamp, comprising a housing (1), a bottle (5) fixed on the housing (1), a base (3) provided with an opening at its bottom and fixed at the bottom of the housing (1), a circuit board (2) fixed inside the housing (1), and a closure cap (4) closing the opening. The closure cap closes the opening of the base, thus preventing dust or debris from entering into the housing from the opening of the base and also preventing the components inside the housing from damage due to dust or debris. C: An electronic fishbowl comprising a bowl body (1), model fishes (7) placed within the bowl body (1), a circuit board (5), and an actuating motor (2) connected to the circuit board (5) via a lead. The bowl body (1) comprises a water tank (12) provided with an opening and a lid (11) used for closing the opening. A propeller is arranged on an output shaft of the actuating motor (2). The electronic fishbowl also comprises a motor housing (3) sleeved on the actuating motor (2). The motor housing (3) is provided with a water passage at where the propeller (21) is located. The motor housing (3) is sleeved on the actuating motor (2), the water passage is provided on the motor housing (3), water enters the motor housing (3) from a water inlet (311) of the water passage, and the propeller (21) on the output shaft of the actuating motor (2) rotates continuously to output via a water outlet the water that entered the motor housing (3), thus preventing the water from entering the actuating motor (2) and affecting normal operation of the actuation motor. D: The present invention discloses a fan, comprising a housing, a water spray device mounted inside said housing and used for spraying mist; the nozzle of said water spray device is provided with two opposing projections, and said housing is provided with retaining slots for placement of said projections. In the present invention, the two retaining slots are arranged on the housing and are used for retaining and fixing the projections; thus the sides of the projections are placed in the retaining slot, and when the projections are pressed, the projections move along the retaining slots so as not to cause pressure on other parts of the water spray device, thus protecting the water spray device and making it less prone to damage.

D

Please select the most similar patent number from A, B, C and D. Which number is? A multi-process high-efficiency intelligent coating assembly line, which solves the problems in the existing technology in which a coating assembly line has a single process route, device repeat purchase rate is high and the assembly line occupies a relatively large area and so on. By configuring the structure of a connection between a conveying track (51) and a driving system (6), process routes (L1, L2 and L3) may be diversified, a variety of different coating processes may be automatically completed on one assembly line, a device is simplified and a reasonable area is occupied. By configuring a control system and a code reader (71) thereof, workpiece information carried by a small carrying car (54) may be automatically identified, corresponding processes for different workpieces may be completed, and the degree of intelligence is higher. A: Disclosed is a flexible and automatic production line for punching, welding, or bonding an automobile exterior decorative member. The production line comprises a two-layer conveying platform for conveying a workpiece mounting seat, and a material loading device and a material discharging device provided at two ends of the two-layer conveying platform. A robot punching system and/or a robot welding/bonding system is further provided at a side surface of the two-layer conveying platform. The production line further comprises a control system. Each of the two-layer conveying platform, the material loading device, the material discharging device, the robot punching system, and the robot welding/bonding system are connected to the control system, and receive instructions so as to achieve precise machining. In the present invention, an entire production process is divided so as to be completed at multiple stations, and conveying between stations is performed by means of an assembly line. An overall production process on the automatic production line comprises: positioning a die having a workpiece, a robot performing punching, conveying the die, the robot performing welding/bonding, and conveying the die or discharging a member. An action performed at each station is automatically controlled by the robot, and a three-dimensional integrated structure of the production line for punching and welding the automobile exterior decorative member is established. B: A thermal spraying apparatus and thermal spraying system, and a thermal spraying technique thereof. The thermal spraying apparatus comprises: an electric arc spraying device (06), a rotating work platform (01), a spraying fixture (02), a wire rack (07), and a main controller (08). The electric arc spraying device (06) is provided at an external periphery of the rotating work platform (01). The spraying fixture (02) is circumferentially disposed on the rotating work platform (01). Every spraying fixture (02) rotates by means of a driving force provided by a motor. The wire rack (07) is disposed at the periphery of the rotating work platform (01). Each of the wire rack (07) corresponds to an electric arc spraying device (06). The main controller (08) is controllably connected to a rotating work platform (01). The thermal spraying system further comprises a sand blasting and surface roughening equipment. The thermal spraying technique performs electric arc spraying on a silicon aluminum wire. By rotating the rotating work platform and moving the spraying fixture to different work positions, the thermal spraying apparatus can perform, by means of the electric arc spraying device, a thermal spraying operation in a sequence to realize a production line for a spraying process. The invention improves spraying efficiency and spraying quality when compared to a manual hand-held electric arc sprayer. C: System integration for car bumper injection molding processing; at a gripper placement rack (5), automatically selecting a retrieving gripper (3) which is used for a corresponding product by means of a retrieving robot (2); by means of the retrieving robot (2) and the retrieving gripper (3) joining, retrieving a product from an injection molding machine (13); automatically cutting a material head on the product by means of a material head cutting device (4); automatically completing subsequent sintering processing of the product by means of a flame processing device (8); by means of a product turn over mechanism (6), the product may be received from the retrieving gripper (3) and then turned over, the product automatically being placed on a weighing mechanism (7) for automatic weighing, wherein whether or not the product is up to standard is tested by means of a method of weighing; the weighed product automatically entering a discharge production line (10), the product being sent out in an orderly manner by means of the discharge production line (10); a guardrail (12) may play the role of a safeguard. The entire equipment may automatically complete the procedures of material retrieving, material head cutting, sintering processing, product testing, product discharge and the like, manpower being greatly reduced, while processing efficiency is increased, and production costs are reduced. D: A turnover type automatic assembly line, comprising: a turnover type conveying line (1); a feeding and suction mechanism (3) mounted on the turnover type conveying line (1); and a cartridge type part feeding mechanism (4) disposed at a side of the feeding and suction mechanism (3). The turnover type conveying line (1) comprises: a positioning line (11) and an assembly line (12) arranged side by side and in parallel; multiple positioning fixtures (14), the positioning fixtures (14) performing turnover type conveying between the positioning line (11) and the assembly line (12); and a lifting unlocking mechanism (13), the lifting unlocking mechanism (13) being disposed on the positioning line (11), the positioning line (11) and the assembly line (12) performing reverse conveying, and a fixture feeding station (114), a fixture positioning waiting station (115), and a fixture positioning station (116) being provided in sequence along the conveying direction on the positioning line (11), and the lifting unlocking mechanism (13) being located at the fixture positioning station (116) and located under the positioning line (11). The turnover type assembly line has high automation level and integration level, thereby greatly improving assembly efficiency, and has high position precision, thereby satisfying design assembly requirements.

D

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed a prepreg sizing roll shaft spraying complete machine. The complete machine comprises a main machine base (b1) and a coating mechanism arranged on the main machine base (b1); the complete machine further comprises a feeding structure for performing feeding and an iron powder supply device for absorbing iron powder; a supporting rod (b2) for the installation of the feeding structure is arranged on the main machine base (b1); and the complete machine also comprises an iron powder recycling box (b3) arranged below the iron powder supply device. The prepreg sizing roll shaft spraying complete machine uses automatic control, a very efficient novel roller shaft manufacturing manner is achieved, the finished product yield is high, and the effect is good. A: An edge sewing machine, comprising a machine base (1) and a machine head (2) arranged on the machine base (1). A machine needle assembly (3) and a machine needle driving mechanism for driving the machine needle assembly (3) to act are arranged on the machine head (2); a swing arm (4) and a swing arm driving mechanism for driving the swing arm (4) to swing are arranged on the machine base (1); a thread hooking device (5) obliquely extending upwards to a position right below the machine needle assembly (3) is arranged on the swing arm (4); a sensing probe (6) configured to sense the outer contours of shoe soles of different sizes so as to control the swing arm (4) to swing along with a topline is further comprised; a limiting controller (7) for limiting the swing angle of the swing arm (4) is arranged on the machine base (1). The edge sewing machine is simple in structure, easy in operation, capable of automatic arm swinging, and high in production efficiency. B: A semi-automatic production device for traceless hooks, comprising a rack. A conveyor assembly used for conveying materials, a tray set (1000) used for bearing traceless hook fixing pieces (120) and hooks (130), a gluing system used for smearing glue on the traceless hook fixing pieces (120), a sticky film feeding mechanism used for feeding sticky films (110) to the traceless hook fixing pieces (120) smeared with the glue, and a glue pressing and curing device used for curing and bonding the traceless hook fixing pieces (120) and the sticky films (110) with the glue are arranged on the rack. According to the device, a worker only needs to place the traceless hook fixing pieces (120) and the hooks (130) on trays, the traceless hooks can be manufactured by means of a control switch, the labor cost is reduced, and moreover, due to the fact that the traceless hooks are produced in a semi-automatic mode, the finished product yield is high, the condition is good, workers do not need to make direct contact with UV glue and ultraviolet light, the safety of the workers is guaranteed, a plurality of trays can be arranged on a tray set, and the production efficiency is greatly improved. C: Disclosed is a direct-current, double-support and ultra-fine ring roller grinder, comprising a grinding host, wherein a host shell (1) of the grinding host is arranged on a host base (3); a grinding roller (9) and grinding rings (12, 13) mated with each other are arranged in the host shell (1); the grinding roller is arranged on a grinding roller support (10, 11), and the grinding roller support is arranged on a main shaft (2); a lower end of the main shaft (2) is mounted in a double-support manner through upper and lower bearing positions (4,7) on an upper host cover (6) and the host base (3); a negative-pressure gas port (5) is formed on the host base (3); the grinding rings are directly mounted and connected to the host shell in a non-spaced manner; and the gas port communicates with a graded conveying pipe outside the grinding host. The grinding host of the ring roller grinder uses a structure with feeding from the top and suction from the bottom, which is not restricted by the grading amount of the grading device, and prevents the discharging materials from leaking outside; thus, the grinding efficiency is improved, mechanical collision and abrasion between the grinding roller and the grinding ring are reduced, and the grinding host has a low noise level. D: An automatic spraying device for insulated cups, comprising a mounting frame (1), a drive rod (2) is provided on the mounting frame (1); a torque motor (3), a lower rotary disc (4) and an upper rotary disc (5) are mounted on the drive rod (2); the upper rotary disc (5) is provided with a plurality of moving devices (6), and a sealing cover (7) and a negative pressure device (8) is connected on each moving device (6); the lower rotary disc (4) is provided with paint bases (9), and a storage cavity (10), a support rod (11) and a flow cavity (12) are provided within each paint base (9); a plurality of outflow holes (13) are provided on the flow cavities (12); a fixed ring plate (14) is provided on the paint bases (9), and a plurality of discharge holes (15) are provided between each fixed ring plate (14) and support rod (11); and one side of the lower rotary disc (4) is provided with a feeding device (16) and a discharging device (17). The device has a simple structure, a good coating effect, and can improve spraying working efficiency.

D

Please select the most similar patent number from A, B, C and D. Which number is? A transducer element (100), comprising: multiple array elements (10). At least one array element (10) comprises: a substrate (1); and a first electrode layer (2), a diaphragm layer (3), and a second electrode layer (4) which are sequentially stacked. The first electrode layer (2) and the second electrode layer (4) are insulated from one another. The array element (10) has a work area (A) and a peripheral area (B) that surrounds the work area (A); the work area (A) comprises multiple sub-work regions (A1); overlapping portions of the first electrode layer (2), diaphragm layer (3), and second electrode layer (4) form multiple cells (C) that are located in the work area (A). Multiple cavities (D) are provided between a portion of the diaphragm layer (3) located within the multiple sub-work regions (A1) and the first electrode layer (2), and may vibrate along a direction perpendicular to the substrate (1) between the first electrode layer (2) and the second electrode layer (4), so as to perform signal conversion; and two adjacent cavities (D) communicate with one another. The diaphragm layer (3) is provided with multiple release holes (E), and the multiple release holes (E) are located in the peripheral area (B); and one release hole (E) communicates with at least one cavity (D). A: An optical sensor array substrate (30) and an optical fingerprint collector. The optical sensor array substrate (30) comprises a substrate (31), and the substrate (31) comprises a detection area (30A) and a peripheral area (30R) surrounding the detection area (30A), wherein the detection area (30A) comprises multiple photosensitive pixels (30a), and at least one of the multiple photosensitive pixels (30a) comprises: a thin film transistor (32), which is disposed on the substrate (31) and which has a gate (32a), an active layer (32b), a source (32c) and a drain (32d); a storage capacitor (33), which is disposed on the substrate (31) and which has a first capacitor plate (33a) and a second capacitor plate (33b), the second capacitor plate (33b) being located on the side of the first capacitor plate (33a) away from the substrate (31) and being electrically connected to the source (32c) or the drain (32d) of the thin film transistor (32); a photosensitive element (39), which is located on the side of the storage capacitor (33) away from the substrate (31), and one end of which is electrically connected to the second capacitor plate (33b); a first electrode layer (36a), which is located on the side of the photosensitive element (39) away from the substrate (31) and is electrically connected to the other end of the photosensitive element (39), wherein the orthographic projection of the second capacitor plate (33b) on the substrate (31) at least partially coincides with the orthographic projection of the first electrode layer (36a) on the substrate (31). B: The present disclosure provides an acoustic transducer unit, comprising: a base substrate; a first electrode, located on one side of the base substrate; a supporting pattern, located on the side of the first electrode distant from the base substrate, the supporting pattern defining an accommodating slot, at least one release slot, and at least one connection slot, the orthographic projection of the release slot on the base substrate being spaced apart from the orthographic projection of the accommodating slot on the base substrate, and the connection slot being located between the accommodating slot and the release slot to make the accommodating slot communicated with the release slot; a diaphragm pattern, located on the side of the first electrode distant from the base substrate and capable of vibrating in the accommodating slot; and a filling pattern filling the release slot; and a second electrode located on the side of the diaphragm distant from the base substrate. The embodiments of the present disclosure also provide a preparation method for the acoustic transducer unit, and an acoustic transducer. C: A touch substrate and a display device. The touch substrate comprises: a base substrate (100); a first electrode layer (110) which is located on one side of the base substrate (100) and comprises a plurality of mutually independent first electrodes (111), the shapes of orthogonal projections of the first electrodes (111) on the base substrate (100) being circular; a second electrode layer (120) located on the side of the first electrode layer (110) facing the base substrate (100) and insulated from the first electrode layer (110), an orthogonal projection of the second electrode layer (120) on the base substrate (100) and the orthogonal projections of the first electrodes (111) on the base substrate (100) having overlapping regions; and a wiring layer (130) located on the side of the first electrode layer (110) facing the base substrate (100) and insulated from the second electrode layer (120), wherein the wiring layer (130) comprises a plurality of touch wires (131), and one touch wire (131) is electrically connected to one first electrode (111) correspondingly. D: A liquid crystal lens (100) having at least two drive regions. The liquid crystal lens (100) comprises a first electrode layer (1) and a second electrode layer (2). The first electrode layer (1) comprises a plurality of first electrode groups (10), each of the first electrode groups (10) comprising a plurality of first electrodes (101); the plurality of first electrodes (101) comprised in each of the first electrode groups (10) are configured to receive a plurality of first driving signals (SD 1 ) on a one-to-one basis, and each of the at least two drive regions corresponds to at least one first electrode group (10). The second electrode layer (2) is provided opposite the first electrode layer (1), and comprises at least one second electrode (201) configured to receive at least one second driving signal (SD 2 ) on a one-to-one basis. Driving voltages formed between the first driving signals (SD 1 ) received by the first electrodes (101) located at the same position and the second driving signals (SD 2 ) received by the corresponding second electrodes (201) are equal or substantially equal in the same drive region, and the absolute values of the driving voltages in different drive regions increase in the radial direction of the liquid crystal lens (100) and in a direction pointing to an edge from the center of the liquid crystal lens (100).

B

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed is a sandwich-type ultrasonic transducer front shroud sub-assembly, composed of a front shroud (100) and a mounting pad (300), wherein the front shroud (100) comprises a front shroud cylinder (3), a front shroud top face (1), a front shroud bottom face (4) and a front shroud screw hole (5); the mounting pad (300) comprises a mounting pad cylinder (38) and a mounting pad through hole (30), and the mounting pad through hole (30) is located in the mounting pad cylinder (38); and the front shroud (100) is disposed in the mounting pad through hole (30), and the front shroud top face (1) is in direct contact with a space (28) at one end of the mounting pad through hole (30). Further disclosed is a sandwich-type ultrasonic transducer equipped with the sub-assembly. A: A turnover beam and a refrigerator provided with the turnover beam. The turnover beam comprises a front cover plate (1), a rear cover plate (2), a mounting seat (3) and an elastic structure (4). A cavity is formed by the front cover plate (1) and the rear cover plate (2) which are matched with each other; the mounting seat (3) and the elastic structure (4) are arranged in the cavity; the mounting seat (3) comprises a fixing position (32) connected with a door body, and a rotating shaft (31) articulated with a hole (11) formed in the front cover plate (1); the rotating shaft (31) is provided with a limit stopper (33); one end of the elastic structure (4) is fixed in the cavity, and the other end of the elastic structure is a free end; the elastic structure is matched with the limit stopper (33) in an elastic way; when the door body is arranged at two limiting positions, the free end of the elastic structure (4) is arranged at the two sides of the limit stopper (33); when the door body is arranged between the two limiting positions, the free end of the elastic structure (4) is matched with the limit stopper (33) in a way of elastic extrusion. B: Provided are a refrigerator (3), a door body (1) for the refrigerator (3), and a disassembly method for a display control component (10) of the door body (1). The refrigerator (3) comprises a refrigerator body (2) and a door body (1). The door body (1) comprises: a panel (30) comprising a hollow-out window (31); a door liner (40); a pre-embedded box (20), the front end of which is provided with an installation opening (21) corresponding to the hollow-out window (31), the pre-embedded box (20) being provided between the panel (30) and the door liner (40); and the display control assembly (10), which comprises a touch display screen (120), an installation plate frame for fixing the touch display screen (120), and a front cover plate (130) provided at the front side of the installation plate frame, and is configured to pass through the hollow-out window (31) and the installation opening (21) as a whole in sequence and then be installed in the pre-embedded box (20) from front to rear. The front cover plate (130) is detachably connected to the installation plate frame, and the installation plate frame is detachably connected to the pre-embedded box (20) both by means of snap fit connection. The disassembly method comprises: releasing the snap fit connection between the front cover plate (130) and the installation plate frame, and removing the front cover plate (130) from the installation plate frame; and releasing the snap fit connection between the installation plate frame and the pre-embedded box (20), and detaching the installation plate frame and the touch display screen (120) from the interior of the pre-embedded box (20). C: A thinned liquid crystal display comprises: a body (10), a mounting seat (20) arranged on the body (10), a mounting rack (30) arranged in the mounting seat (20), a plurality of PCB boards (40), each of which is mounted on the mounting rack (30) and is electrically connected to the body (10), and a cover plate (50) arranged on the mounting seat (20) as a cover. In the thinned liquid crystal display, the mounting seat (20) connected to a front shell (12) of the body (10) and located at a side edge of the body (10) of the liquid crystal display is arranged, a mounting rack (30) is arranged in the mounting seat (20), and a plurality of PCB boards (40) is mounted in the mounting rack (30) in a layered manner, so the space required for mounting the PCB boards (40) is saved, and the liquid crystal display is integrally thinned. Meanwhile, a mounting seat cover plate (50) independent of a back shell (14) of the body (10) of the liquid crystal display is arranged, so that, instead of dismounting the back shell (14), only the cover plate (50) needs to be detached to maintain the PCB boards (40), which is convenient to operate. The cover plate (50) completely covers an opening between the mounting seat (20) and the body (10), so as to not only guard against dust but also keep the appearance of the entire liquid crystal display complete. D: Disclosed is an ultrasonic cleaning device, comprising a cleaning tank (10), a tap (20), an ultrasonic cleaning mechanism (30) and a positioning mechanism. The ultrasonic cleaning mechanism (30) is provided with an ultrasonic generator (31), a protective sleeve (32), a balancing weight (35), a lead (33) and an ultrasonic transducer (34), wherein the cleaning tank (10) is provided with a through hole (11), and the inner diameter of the through hole (11) is greater than the outer diameter of the protective sleeve (32); the protective sleeve (32) is sleeved on the lead (33) and passes through the through hole (11); an upper end of the lead (33) is electrically connected to the ultrasonic transducer (34), and a lower end of the lead (33) is electrically connected to the ultrasonic generator (31); an upper end of the protective sleeve (32) is fixedly connected to the ultrasonic transducer (34), and a lower end of the protective sleeve (32) is fixedly connected to the lead (33); the balancing weight (35) is located below the through hole (11), and the balancing weight (35) is detachably fixed on the protective sleeve (32); and the positioning mechanism is arranged on the cleaning tank (10) or the tap (20), and the positioning mechanism is provided with a positioning hole for arranging the ultrasonic transducer (34). By means of the arrangement, the ultrasonic cleaning device is easier to use and is very safe, and same can achieve automatic storage of the ultrasonic transducer.

D

Please select the most similar patent number from A, B, C and D. Which number is? The present disclosure relates to the technical field of acoustic wave transducers, and provides an acoustic wave transducer and a driving method, which can at least partially solve the problem of low focus position adjustment accuracy of existing acoustic wave transducers. The acoustic wave transducer of the present disclosure comprises: a plurality of unit groups, at least some of the plurality of unit groups each comprising a plurality of acoustic wave transduction units, the plurality of acoustic wave transduction units being configured to perform the same operation, and each acoustic wave transduction unit being configured to perform at least one of the following: converting an acoustic wave into an electric signal, and converting the electric signal into an acoustic wave signal; and a plurality of array element signal ends, each of the plurality of array element signal ends being connected to at least two adjacent unit groups, the array element signal ends being connected to different unit groups by means of different switching devices, each switching device being configured to control the connection/disconnection between the array element signal end and the unit group connected thereto, and some of the unit groups connected to any two adjacent array element signal ends being the same. A: An ultrasonic endoscope probe and an ultrasonic endoscope system. The ultrasonic endoscope probe comprises a plurality of ultrasonic transducers (20) which are arranged in an annular array; the ultrasonic transducers (20) constitute a transducer array which is arranged in M rows and N columns, that is, each column of the transducer array is composed of at least two ultrasonic transducers (20); due to the transducer array, the ultrasonic endoscope probe not only has good focusing capability in an array distribution direction, but also achieves sound focusing in the extending direction of array elements in each column by changing a pore size, so that the ultrasonic endoscope probe can obtain uniform and consistent acoustic images in near, middle and far fields. Compared with an ultrasonic endoscope probe in the prior art, the detection range of the ultrasonic endoscope probe is greatly widened. B: Disclosed is an imaging method in ultrasound scanning. The method comprises: generating a shear wave in a target tissue (S10); selecting an ultrasonic transducer array element group in an ultrasonic probe, and determining a focus position and a transmitting aperture corresponding to the ultrasonic transducer array element group, such that a sound field boundary range formed by the ultrasonic transducer array element group completely covers a region of interest in the target tissue (S11); determining a relative time delay between the transmission times of ultrasonic wave array elements, and controlling the array elements to transmit ultrasonic waves according to the corresponding relative time delays, so as to cause a transmission focusing effect (S12); within a continuous time period, receiving ultrasonic echoes returned from the region of interest, obtaining echo information of different positions in the region of interest corresponding to different time points, and obtaining, according to the echo information, shear wave information corresponding to the region of interest (S14). Also disclosed in the present invention are a corresponding apparatus for performing the foregoing imaging method, as well as an ultrasonic imaging system, which can be widely applied to obtain accurate echo information, as well as to effectively improve imaging frame rates and signal quality. C: Provided is an ultrasonic sensor (100), comprising a sensing array (110), wherein the sensing array (110) comprises multiple sensing units (210) arranged in an array, with each of the multiple sensing units (210) comprising a first ultrasonic transducer (211) and a second ultrasonic transducer (212), respectively; the first ultrasonic transducer (211) is used for emitting a sensed ultrasonic wave; the second ultrasonic transducer (212) is used for receiving a reflected ultrasonic wave corresponding to the ultrasonic wave; the first ultrasonic transducer (211) and the second ultrasonic transducer (212) are arranged in parallel on a plane; and the first ultrasonic transducer (211) and the second ultrasonic transducer (212) have the same central shaft (210C), which is perpendicular to the plane. D: Disclosed is an ultrasonic transducer, comprising a housing (5), wherein the housing (5) is internally provided with a piezoelectric layer (3), the piezoelectric layer (3) is formed by at least two piezoelectric array elements, and the frequency interval between the piezoelectric array elements is 50 kHz to 1.2 MHz. An acoustic lens (2) is provided at the front end of the piezoelectric layer (3). The acoustic lens (2) is used to make sure that the piezoelectric array elements of different frequencies have a common focus. Further disclosed is a method for manufacturing the ultrasonic transducer.

D

Please select the most similar patent number from A, B, C and D. Which number is? The present invention relates to the field of piezoelectric transducers, and provides a transducer. The transducer comprises a first wafer (100) and a second wafer (200); the first wafer (100) and the second wafer (200) each comprise a substrate (110, 210), a first oxide layer (105, 205) fixed to one side of the substrate (110, 210), a metal layer (114, 214) fixed to the other side of the substrate (110, 210), and a silicon nitride layer (104, 204), a first electrode (103, 203), a piezoelectric layer (102, 202), and a second electrode (101, 201) which are sequentially deposited on the first oxide layer (105, 205); the substrate (110, 210) comprises a first silicon layer (111, 211), a second silicon layer (113, 213), and a second oxide layer (112, 212) sandwiched between the first silicon layer (111, 211) and the second silicon layer (113, 213); the metal layer (114) of the first wafer (100) and the metal layer (214) of the second wafer (200) are fixedly connected; the first wafer (100) is provided with a cavity (122) and gaps (121, 123); and the second wafer (200) is provided with a cavity (222), a first gap (221), and a second gap (223). Moreover, the present invention further provides a manufacturing method for the transducer. Compared with the prior art, by designing the two wafers, SPL is increased by two times, and the structural stability is improved. A: A method for producing a MEMS drive, comprising: providing a wafer substrate (10) having a first oxide layer (12) as well as a first silicon layer (11) and a second silicon layer (13) respectively deposited on opposite surfaces of the first oxide layer (12); after depositing to form a second oxide layer (20) on the surface of the second silicon layer (13), element-doping the first silicon layer (11) to form a doped region (30) spaced from the first oxide layer (12); and depositing a third oxide layer (40) on the surface of the first silicon layer (11), and etching the third oxide layer (40) to form a first oxidation structure (41) at the edge, the first oxidation structure (41) enclosing a first cavity (A). According to the method for producing a MEMS drive, the MEMS drive can be made by processing an existing silicon wafer using a classic wafer producing method, so that the bonding process and the micro-assembly process are canceled, thus simplifying the entire MEMS actuator producing process. B: A chip substrate, a sequencing chip, and a manufacturing method therefor. The chip substrate comprises: a wafer layer (111), the wafer layer (111) having uniformly distributed cutting lines; a first silicon oxide layer (112), the first silicon oxide layer (112) being composed of silicon oxide and formed on the upper surface of the wafer layer (111); and a transition metal oxide layer (113), the transition metal oxide layer (113) being composed of transition metal oxide and formed on the upper surface of the first silicon oxide layer (112). The chip substrate has the characteristics of harsh environment resistance such as high temperature resistance and high humidity resistance. Moreover, by changing components such as the pH of a solution containing a sequence to be sequenced and a surfactant, a functional area of the surface of the chip substrate can specifically adsorb the sequence to be sequenced. C: Provided in the present invention is a sequencing chip. The sequencing chip comprises: a chip main body, a nucleic acid, and a phosphonic acid polymer film, wherein the chip main body comprises a plurality of chip units arranged on a same layer, said chip units are obtained via performing cutting on a chip matrix along cutting lines of a wafer layer, and said chip matrix comprises: the wafer layer, said wafer layer having uniformly distributed cutting lines; a first silicon oxide layer, the first silicon oxide layer being made up of silicon oxide and formed on an upper surface of the wafer layer; a transition metal oxide layer, said transition metal oxide layer being made up of a transition metal oxide and formed on an upper surface of the first silicon oxide layer; the nucleic acid is fixed on the transition metal oxide layer; and the phosphonic acid polymer film is made up of a polyphosphonic acid polymer and formed on an upper face of the transition metal oxide layer. D: Provided are an ultrasonic transducer preparation method, an ultrasonic transducer and an information acquisition element. The method comprises: forming a first electrode on a substrate layer; forming a passivation protection layer on a first surface of the first electrode; forming a circuit layer on a first surface of the passivation protection layer; removing the substrate layer; forming a piezoelectric layer on a second surface of the first electrode; and forming a second electrode on a first surface of the piezoelectric layer. Due to the fact that the substrate layer is removed, the thickness of the ultrasonic transducer is small, and the ultrasonic transducer can be suitable for a scenario where an ultrathin ultrasonic transducer is needed. An effective device structure layer through which ultrasonic signals generated by the ultrasonic transducer pass during propagation does not comprise a substrate layer, such that energy loss caused by the ultrasonic signals penetrating the substrate layer is prevented, and the ultrasonic performance of the ultrasonic transducer is better.

D

Please select the most similar patent number from A, B, C and D. Which number is? Provided are an ultrasonic transducer preparation method, an ultrasonic transducer and an information acquisition element. The method comprises: forming a first electrode on a substrate layer; forming a passivation protection layer on a first surface of the first electrode; forming a circuit layer on a first surface of the passivation protection layer; removing the substrate layer; forming a piezoelectric layer on a second surface of the first electrode; and forming a second electrode on a first surface of the piezoelectric layer. Due to the fact that the substrate layer is removed, the thickness of the ultrasonic transducer is small, and the ultrasonic transducer can be suitable for a scenario where an ultrathin ultrasonic transducer is needed. An effective device structure layer through which ultrasonic signals generated by the ultrasonic transducer pass during propagation does not comprise a substrate layer, such that energy loss caused by the ultrasonic signals penetrating the substrate layer is prevented, and the ultrasonic performance of the ultrasonic transducer is better. A: Embodiments of the present application provide an ultrasonic transducer, an information acquisition element and an electronic device. The ultrasonic transducer comprises a vibrating diaphragm layer, a fixed supporting layer, a variable supporting layer and a substrate; the fixed supporting layer is fixedly connected to the vibrating diaphragm layer and is used for supporting the vibrating diaphragm layer; the variable supporting layer is arranged between the substrate and the vibrating diaphragm layer; when the variable supporting layer is in contact with the vibrating diaphragm layer, a first frequency is provided, and when the variable supporting layer is separated from the vibrating diaphragm layer, a second frequency is provided. The ultrasonic transducer can achieve multiple different working frequencies, thus improving the energy of transmitting signals and the sensitivity of receiving signals. B: An ultrasound probe, an endoscope, an endoscopic imaging system, and an endoscopic imaging method, the ultrasound probe comprising: a base (10), an optical fibre element (20), a lens group (30), and an annular array ultrasonic transducer (40); the base (10) is a hollow base; the optical fibre element (20) is positioned in the base (10) and is used for transmitting laser light emitted by a laser; the lens group (30) is positioned on one side of the base (10) and is used for shaping the laser light transmitted by the optical fibre element (20) to form a first cone-shaped light, the first cone-shaped light being used for irradiating an object to be imaged and exciting the object to generate photoacoustic signals; and the annular array ultrasonic transducer (40) is arranged in an annular manner on the outer side of the base (10) and is used for collecting the photoacoustic signals, the photoacoustic signals being used for forming a three-dimensional photoacoustic image of the object; thus, the annular array ultrasonic transducer (40) that collects photoacoustic signals is used together with the first cone-shaped light emitted by the lens group (30) to directly acquire photoacoustic signals of an annular area for realising an annular photoacoustic image, increasing the speed of photoacoustic imaging and thereby improving the quality of photoacousting imaging. C: Provided in the embodiments of the present application are an ultrasound ablation system and a control method therefor. The ultrasound ablation system comprises: an ultrasonic transducer, an ultrasonic detection apparatus and a protection apparatus, wherein the ultrasonic transducer is used for emitting continuous ultrasonic waves to a human body, so as to form an ablation region in the human body and form, outside the surface of the human body, a reflection focal point corresponding to the ablation region; the ultrasonic detection apparatus comprises a probe, and the probe is used for emitting an ultrasonic wave to the human body, so as to acquire a monitoring image of the human body; and the protection apparatus is used for determining a positional relationship between the probe and the reflection focal point according to a first position of the probe and the monitoring image, controlling the probe to be far away from the reflection focal point when the positional relationship meets a preset condition, and making the ultrasonic transducer ablate a target tissue in the ablation region. By means of the embodiments of the present application, a probe and a sensor thereof are effectively prevented from being damaged, thereby greatly reducing application and maintenance costs, and greatly prolonging the actual usage time of the embodiments of the present application. D: Disclosed in the present invention are an endoscopic ultrasonography system and an ultrasonic transducer thereof. The ultrasonic transducer comprises: a piezoelectric wafer, configured to emit and receive an ultrasonic signal, the piezoelectric wafer enclosing an annular structure; a column circuit board, arranged on one face of the piezoelectric wafer, wherein the column circuit board is provided with a plurality of column electrodes which are parallel to one another and are independently arranged, the electrode directions of the column electrodes are the axial direction of the ultrasonic transducer, each of the plurality of column electrodes is provided with a column electrode pad for welding with a cable wire, and the plurality of column electrode pads are arranged on the side of the column circuit board close to a connecting end of the ultrasonic transducer; and a row circuit board, arranged on the other face of the piezoelectric wafer, wherein the row circuit board is provided with a plurality of row electrodes which are parallel to one another and are independently arranged, the electrode directions of the row electrodes are the circumferential direction of the ultrasonic transducer, each of the plurality of row electrodes is provided with a row electrode pad for welding with the cable wire, and the plurality of row electrode pads are arranged on the side of the row circuit board close to the connecting end of the ultrasonic transducer. The described ultrasonic transducer improves the imaging effect.

A

Please select the most similar patent number from A, B, C and D. Which number is? An air-pressure-type dual-bin air-powered separator. An upper side wall of a separation bin (11) is in communication with an upper side wall of a material drop bin (12); a conveyor mesh belt (5) connects the separation bin (11) and the material drop bin (12) through the communication opening between the two; an air curtain separating the two bins is provided at the communication opening; a material outlet (9) is provided at the bottom of the material drop bin (12); the top of the separation bin (11) is provided with a negative-pressure air-suction port (6); a material inlet (4) is provided at the bottom of the end facing the conveyor mesh belt (5) on a side wall of the separation bin (11); a vibration groove (3) is provided at the bottom of the separation bin (11); a damping plate (2) is provided at the bottom of the vibration groove (3); an air inlet (1) facing an opening at the bottom end of the separation bin (11) is provided at the lower portion of the damping plate (2); an end of the vibration groove (3) connects to a removed material drop outlet (10). The air-powered separator can separate useless particles of different densities from material according to needs, collect useful material, prevent material particles from breaking and becoming smaller due to mechanical fiction, and has the characteristics of high efficiency, low energy consumption, simple structure, and low material loss. A: A paste separator (100). A separation bin (111) is disposed on the inner surface of the lower part of a main body (110). A separation opening (112) is disposed on the bottom of the separation bin (111). The paste separator comprises a first fixed ring (120), a second fixed ring (130) and an annular rubber pad (140) that are fixed to the separation opening (112). An annular groove (141) for placing the edge of the separation opening (112) is formed in the edge of the annular rubber pad (140). When the annular rubber pad (140) is sleeved with the separation opening (112), the annular rubber pad (140) is located between the first fixed ring (120) and the second fixed ring (130). A handle (150) and a control member (101) are disposed on the main body (110). One end of the control member (101) is fixed to the handle (150) by means of a pin shaft (102), and the other end is connected to a sliding valve (103). A placing hole (115) for placing the sliding valve (103) is formed in the side wall of the bottom of the main body (110). A placing opening (132) for placing the sliding valve (103) is formed in the second fixed ring (130). By controlling the control member (101), the sliding valve (103) is moved in the placing hole (115) and the placing opening (132). When the sliding valve (103) is inserted in the second fixed ring (130), the separation opening (112) is sealed by the sliding valve (103); and when the sliding valve (103) moves outwards from the second fixed ring (130), the separation opening (112) is opened. B: Disclosed is a material separation apparatus. The material separation apparatus comprises a feed channel (10), a discharge channel (20), an impurity separation channel (30), and a turbulent flow generation mechanism (60). The feed channel (10) is provided with a feed inlet (11). The discharge channel (20) is provided with a discharge outlet (21). The discharge channel (20) is in communication with the feed channel (10). An air flow flowing from the feed inlet (11) to the discharge outlet (21) is formed in the feed channel (10) and the discharge channel (20). The impurity separation channel (30) is disposed at an intersection of the feed channel (10) and the discharge channel (20). One end of the impurity separation channel (30) is in communication with the feed channel (10) and the discharge channel (20). The position of the impurity separation channel (30) is lower than positions of the feed inlet (11) and the discharge outlet (21). The turbulent flow generation mechanism (60) is disposed at the intersection of the feed channel (10) and the discharge channel (20). The turbulent flow generation mechanism (60) is used for generating an irregular air flow (80). A formation area of the irregular air flow (80) is located between the feed channel (10) and the impurity separation channel (30). The apparatus overcomes the limitation of a magnetic separation mode, and improves the effect of material impurity separation. C: Disclosed is a preliminary oil-water separation and filtration structure, comprising a storage bucket (1), a separation bin (2), air pipes (17) and an air exhaust mechanism which are arranged inside a housing, wherein the air pipes (17) are arranged at the top of both the storage bucket (1) and the separation bin (2); the air pipes (17) lead to the air exhaust mechanism; the air exhaust mechanism comprises an air blower (18) and an activated carbon layer (19); one end of the air blower (18) is connected to the air pipes (17), and the other end leads to the activated carbon layer (19); the storage bucket (1) is divided into two independent inner cavities by a partition plate (3); oil-water mixtures in the two inner cavities are mixed after overflowing the top of the partition plate (3); a stirring rod (5) is arranged on a bottom face of each inner cavity; the stirring rods (5) are mounted on the storage bucket (1) via sealing bearings (6); a flow channel port (9) for the oil to overflow is arranged at an upper edge of a rotary slope face (8); the flow channel port (9) leads to the separation bin (2); the separation bin (2) is divided into a water bin and an oil bin; a hydrophilic and oleophobic separation layer (10) is arranged at an outlet of the flow channel port (9); the separation layer (10) is arranged obliquely downward; an oblique lower end of the separation layer (10) leads to the oil bin; the water bin is located on a lower side of the separation layer (10); a water outlet (11) is arranged in the water bin; and an oil outlet (12) is arranged in the oil bin. D: A thermal separation apparatus for recycling oil-based drilling waste of an offshore oilfield, comprising a servo motor (2), a thermal separation bin body (5), a mixing bin (13), a second feed pipe (16), and a rotating shaft (17). A cover body (4) is fixedly installed on one side of the thermal separation bin body (5) by means of a fastening screw (1). A ceramic wear-resistant arc plate (7) is fixedly installed below the inner wall of the thermal separation bin body (5). A hole is formed in the middle of one side of the cover body (4) and a second bearing (18) is embedded in the hole. A first bearing (8) is embedded in one side of the inner wall of the thermal separation bin body (5). The inner wall of the first bearing (8) and the inner wall of the second bearing (18) are fixedly connected to both ends of a rotating shaft (17), respectively. A hole is formed in the bottom of the thermal separation bin body (5) and communicates with one end of the second feed pipe (16). The other end of the second feed pipe (16) communicates with the bottom of the mixing bin (13). The top of the mixing bin (13) communicates with a first feed pipe (9), and a liquid level sensing apparatus (12) is embedded in one side of the top of the mixing bin (13).

B

Please select the most similar patent number from A, B, C and D. Which number is? A spotlight structure of the present invention, comprising a main body, a waterproof front cover, and a waterproof rear cover; the main body is provided with a front cavity and a rear cavity, and a focusing assembly, a light adjustment assembly and a color temperature adjustment assembly are provided in the cavities; threads are provided on outer walls of the front and rear ends of the main body, dovetail grooves are provided at the roots of the threads, and O-shaped rings are sleeved on the dovetail grooves; and inclined edges are provided on the edges of the waterproof front cover and the waterproof rear cover close to the O-shaped rings, the waterproof front cover is in threaded connection with the front end of the main body, and the waterproof rear cover is in threaded connection with the rear end of the main body. The object of the present invention is to provide a spotlight structure which is waterproof and integrates light brightness adjustment, color adjustment and light spot adjustment. A: Disclosed is an intelligent anti-theft device, comprising an upper cover (1), a micro central processing unit (10), a hollow tube (2), a battery (20), a screw (3) and an expansion nut (4), wherein the upper cover (1) is provided with an inner cavity; the micro central processing unit (10) is arranged inside the inner cavity of the upper cover (1); the upper cover (1) is in threaded connection with one end of the hollow tube (2); the battery (20) is arranged inside the hollow tube (2); the micro central processing unit (10) is electrically connected to the battery (20); the other end of the hollow tube (2) is provided with an inner thread, through which the hollow tube (2) is in threaded connection with one end of the screw (3); and the other end of the screw (3) is in threaded connection with the expansion nut (4). The intelligent anti-theft device is an intelligent anti-theft product. The purpose thereof is to provide an intelligent anti-theft device having a lightweight structure, being easy to use, capable of being conveniently locked, having a high compatibility for convenient assembly to a bicycle or an electric vehicle, being dust-proof and water-proof, and enabling the bicycle or the electric vehicle assembled with the anti-theft device to have an anti-theft function. B: The present utility model relates to an air brush head structure, comprising an air brush handle body and a spray head, wherein a spray needle is provided in the air brush handle body; a nozzle is provided in the spray head; a nozzle base is clamped in the air brush handle body; an air channel is provided between the air brush handle body and the nozzle base; the rear end of the spray nozzle is connected in the nozzle base in a threaded manner; the outer wall of the middle of the nozzle matches the inner wall of the front end of the nozzle base via a conical surface; the inner wall of the rear end of the spray head is connected to the outer wall of the front end of the air brush handle body in a threaded manner; the front end of the nozzle penetrates the spray head and partially extends out of the nozzle; the inner wall of the spray head abuts against the outer wall of the nozzle; and the front end of the nozzle is connected to a nozzle cap in a threaded manner. The whole structure is convenient to assemble and disassemble, is convenient to clean and replace later on, and the concentricity of the nozzle and the handle body can be ensured, so as to achieve uniform and fine spraying. C: A lamp holder structure for a waterproof stage lamp, comprising a lamp body support (1), a front head cover (2) and a rear head cover (2) respectively disposed on the front side and the rear side of the lamp body support (1), a lens assembly (4) disposed above the lamp body support (1), a heat dissipation assembly (3) disposed below the lamp body support (1), a light source (5) disposed in a cavity of the lamp body support (1), and a plurality of optical components (6) arranged in the direction of a primary optical axis. The optical components (6) are connected and fixed to the inner wall of the lamp body support (1). The lens assembly (4), the lamp body support (1), and the heat dissipation assembly (3) are all disposed in a cavity formed by joining the front head cover (2) and the rear head cover (2) together. The front head cover (2), the rear head cover (2), the lens assembly (4), and the heat dissipation assembly (3) are sealedly connected to the lamp body support (1) along the edges to form an all-around waterproof structure. The lamp holder structure has a good waterproof effect, is convenient to mount and demount, and is beneficial to subsequent maintenance. D: An inflatable sprayer. The sprayer comprises: a bottle body (1), which is a main body used for filling with liquid, inflating with gas and for spraying, wherein the upper end of the bottle body (1) is provided with a liquid filling port (2), and the lower end of the bottle body (1) is provided with an inflation cavity (3) in an integrally recessed inward manner; a waterproof ventilation device (4), which is arranged at a position where the upper end of the inflation cavity (3) is in communication with the interior of the bottle body (1); a sealing cover (5), which is in rotary retaining threaded-connection with the liquid filling port (2) of the bottle body (1) and is used for filling with the liquid and installing a spraying pump assembly (7) in a sealing manner; a mounting cavity (6), which is provided on the sealing cover (5) in an integrally upward-protruding manner; the spraying pump assembly (7), which is a main part for realizing liquid feeding and spraying, wherein the spraying pump assembly (7) is arranged in the mounting cavity (6) and penetrates upward through the top of the mounting cavity (6) and extends to the outside of the bottle body (1); and an inflation pump assembly (8), which is an assembly arranged in the inflation cavity (3) and is used for inflating the interior of the bottle body (1) with compressed gas. In the inflatable sprayer, the design of the liquid filling port (2) being arranged at the upper part and the inflatable structure being arranged at the lower part is realized, and the waterproof ventilation device (4) is used, such that the inflatable sprayer has a good sealing performance, is safe and reliable, and can be reused.

C

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed is a steam ejection type organic garbage disposer, which is provided with a steam pressure maintaining steel cylinder (6), an ejection steel cage, a feed screw cap (2) and an ejection initiating cylinder (14), wherein the ejection steel cage is slidingly installed in the steam pressure maintaining steel cylinder (6); a steam inlet is provided on the steam pressure maintaining steel cylinder (6); a feed inlet (17) is provided at the upper end of the ejection steel cage; the lower end of the ejection steel cage is fixedly installed with a piston rod of the ejection initiating cylinder (14); and the feed screw cap (2) is installed on the feed port (17) of the ejection steel cage. The garbage disposer has a simple structure, is suitable for instantaneous ejection, has high-pressure resistance, high strength and convenient loading, and has uniform and ordered discharge and a more stable ejection slide during steam ejection. A: Disclosed is a multi-functional organic garbage disposal integrated machine, comprising a shell body (1); a feed port (11) formed on the top of the shell body (1), an air cylinder (2) arranged on a side surface of the shell body (1), and a work chamber formed inside of the shell body (1); wherein, a pushing plate (3), hobbing cutters (6) and a cleaning device (7) are arranged in the work chamber (12); the pushing plate (3) is positioned on the right side of the feed port (11); an outer contour of the pushing plate (3) is sealed and connected with the work chamber (12); the pushing plate (3) is driven by the air cylinder to do reciprocating motion in the work chamber (12); a baffle plate (4) is fixedly arranged on the pushing plate (3); a feed port (11) can be opened and closed by the baffle plate (4); the hobbing cutters (6) are positioned on the left side of a blanking port (13); two groups of hobbing cutters (6) are mutually meshed and are arranged in the work chamber (12) along a horizontal direction; the cleaning device (7) comprises a cleaning pipeline (72) and a spray head (71); the spray head (71) is embedded in the side face of the pushing plate (3) and faces to the left side; the cleaning pipeline (72) is sealed and connected with the spray head (71); and the part of the cleaning pipeline (72) in the work chamber (12) is a bendable hose. The equipment has small equipment running resistance, is not easy to be jammed, and meanwhile has the functions of drying garbage and cleaning the equipment. B: A power source unit body for catapulting. The power source unit body for catapulting (77) comprises a high-pressure chamber (7), a flow splitting chamber (8) and a cooling water chamber (9). High-temperature high-pressure fuel gas generated through burning of gunpowder (36) enters the flow splitting chamber, a part of the fuel gas enters a vertical pipe (29) from a fuel gas inlet, and another part of the fuel gas squeezes a water bag (19) in the cooling water chamber, so that cooling water in the water bag is sprayed into the vertical pipe from a cooling water nozzle, and is mixed with high-temperature high-pressure fuel gas to generate steam, and the steam and the gunpowder fuel gas are formed into mixed gas. In the power source unit body for catapulting, gunpowder is placed in a cartridge case (6), and when it is required to release energy, by means of percussion, the power source unit body for catapulting releases high-pressure gas, thereby implementing catapulting of a shipboard aircraft. Also, an aircraft carrier gas-steam catapult and a catapulting method for implementing catapulting of a shipboard aircraft by use of the power source unit body for catapulting. C: A power source unit body for catapulting. The power source unit body for catapulting (77) comprises a high-pressure chamber (7), a flow splitting chamber (8) and a cooling water chamber (9). High-temperature high-pressure fuel gas generated through burning of gunpowder (36) enters the flow splitting chamber, a part of the fuel gas enters a vertical pipe (29) from a fuel gas inlet, and another part of the fuel gas squeezes a water bag (19) in the cooling water chamber, so that cooling water in the water bag is sprayed into the vertical pipe from a cooling water nozzle, and is mixed with high-temperature high-pressure fuel gas to generate steam, and the steam and the gunpowder fuel gas are formed into mixed gas. In the power unit body for catapulting, gunpowder is placed in a cartridge case (6), and when it is required to release energy, high-pressure gas may be released through percussion of the power unit body, thereby implementing catapulting of a shipboard aircraft. Also, an aircraft carrier gas-steam catapult and a catapulting method for implementing catapulting of a shipboard aircraft by use of the power unit body. D: An ejection structure, comprising an ejection base (10), and an ejection assembly (20), a driving assembly (30), a transmission assembly (40), and a trigger assembly (50) which are movably mounted on the ejection base (10). The ejection base (10) is provided with an ejection groove; the ejection assembly (20) is slidably provided in the ejection groove; the transmission assembly (40) is rotatably mounted on the ejection base (10), and the transmission assembly (40) is in matching connection to the driving assembly (30); the trigger assembly (50) is retractably and movably provided on the ejection base (10), and the trigger assembly (50) is snap-fitted to the ejection assembly (20) in a matching manner.

A

Please select the most similar patent number from A, B, C and D. Which number is? An automatic sorting apparatus, comprising a sorting cylinder (32), a cover plate, a shredding knife (34), a separation shaft (17), separation blades, a filter (35), a separation motor (38), and a material flow guiding apparatus. The upper end of the sorting cylinder (32) is connected to the cover plate. The filter (35) at the bottom portion of the sorting cylinder (32) is formed by sequential connection of a material output section without holes (46) of an intake end and a material output mesh section with holes connected to the output section without holes (46). The lower portion of the filter (35) is provided with a flow guiding cavity. A rinse water collection trough (52) is provided at one side of the lower end surface of the material flow guiding cavity, and a material drop opening (49) is provided at the other side. The material flow guiding apparatus is provided inside the flow guiding cavity. The rinse water collection trough (52) is separated from the flow guiding cavity by a liquid filter (39). Employing the described structure, the present automatic sorting apparatus features a novel structure, stable operation, convenient replacement, high working efficiency, and a long service life. A: Disclosed is an automatic sorting machine for sorting crabs. The automatic sorting machine comprises a feeding mechanism and a sorting mechanism, wherein the feeding mechanism is arranged in front of the sorting mechanism; a weighing mechanism and a sorting device are arranged in the sorting mechanism; the feeding mechanism is connected to the sorting device by means of a conveyor belt; the weighing mechanism is arranged below the conveyor belt; a control mechanism is arranged on one side of the conveyor belt; and the weighing mechanism and the sorting device are both connected to the control mechanism. The automatic sorting machine for sorting crabs in the present invention has a simple structure, is rationally designed and easily produced, and has a high degree of automation; crabs are weighed by means of providing the weighing mechanism, and are then sorted by means of the sorting device according to the weighing result, so that the amount of human labor is reduced, and the sorting efficiency is improved; in addition, the problem of harm to sorting personnel during the sorting process is effectively solved, so that the automatic sorting machine better meets the requirements of enterprises. B: Disclosed is a combined wet-dry classification system for municipal household waste, comprising a dry-type fragmentation and pneumatic classification apparatus and a wet-type water separation apparatus, wherein the dry-type fragmentation and pneumatic classification apparatus comprises a feed inlet (1), a fragmentation compartment (2), a sieve (6), a pneumatic classification chamber (7), and a self-adaptive conveyor belt (9); a slow rotating cutter (3) and a fast rotating cutter (4) rotating in the same direction are provided adjacent in the fragmentation compartment, the slow rotating cutter being mounted directly below the feed inlet; a blower (8) is mounted at the left-hand side of the pneumatic classification chamber; the wet-type water separation apparatus comprises a pool (10), a feed inlet (11) provided at the front of the right-hand side of the pool, a support (12) provided above the pool, a baffle plate (13) fixedly provided on the support, a fragmenting blade (14) and a checking and selection apparatus (15), a water inlet pipe (16) provided at the left end of the pool, an overflow port (17) provided in the middle part of the pool wall at the right-hand rear end of the pool, a circulating water pump (19), a filter mesh (18), a material outlet (21), a deflector (22) and a sediment outlet helix (23); and the circulating water pump is in communication with the pool via a circulating water pipe (20). The system can be used for problems such as waste easily intertwining and jamming when fragmenting, can run continually, can completely separate corrosive organic matter, light-weight combustible matter, and inorganic matter, and the moisture content of the light-weight combustible matter is reduced. C: Disclosed in the present invention are a kitchen waste processing method and a processing apparatus, comprising an automatic lifting material intake apparatus, a salt and grease removal apparatus, an oil-water separation apparatus, an automatic sorting apparatus, a drying apparatus, a waste heat recovery apparatus, and a control system, characterized in that a water outlet of the salt and grease removal apparatus is connected to the oil-water separation apparatus, a material outlet is connected to a material inlet of the automatic sorting apparatus, a material outlet of the automatic sorting apparatus is connected to a material inlet of a drying tank of the drying apparatus by means of an electric ball valve, an air outlet of the drying tank is connected to a vacuum pump by means of the waste heat recovery apparatus, and negative vacuum pressure is formed inside the drying tank by means of the operation of a vacuum pump. Employing the described structure, the present invention features a novel structure, a high degree of automation, a marked solid-liquid separation effect, short drying times, low power consumption, and high operational stability, and also conserves energy, is environmentally friendly, and does not emit odors, among other advantages. D: A special vacuum excrement collection and sewage discharge treatment system comprises a waste box (4). A sewage filtering and washing apparatus (10) is mounted on one side of the waste box (4). The sewage filtering and washing apparatus (10) comprises at least a filter screen supporting cylinder (101). A filter drum (102) is accommodated inside an inner cavity of the filter screen supporting cylinder (101), and the filter drum (102) is hollow. Active carbon is disposed inside a sandwich layer formed by the inner wall surface and the outer wall surface of the filter drum (102) to form an active carbon filter layer (103). Multiple filtration pores are formed in the inner wall surface and the outer wall surface of the filter drum (102) to form a filter screen. One end of a flow guide pipe (105) provided with spray holes (104) is disposed in the inner cavity of the filter drum (102) and is used as a flushing water outlet, and the other end of the flow guide pipe (105) is disposed outside the waste box (4) and is used as a flushing water inlet. The inner cavity of the filter drum (102) is in communication with a treated-drainage water port (106) disposed on the waste box (4). An opening (107) in communication with the inner cavity of the waste box (4) is further formed in the filter screen supporting cylinder (101) and is used as an inlet for sewage to be treated and an outlet for waste after treatment. After the sewage filtering and washing apparatus (10) is additionally disposed on an existing waste box (4), liquid and solid are separated on the apparatus, the sustained use time of the system is increased, and normal use of an excrement collection system in various states can be ensured.

B

Please select the most similar patent number from A, B, C and D. Which number is? A method of preparing a nano-scale zero-valent iron, comprising the following steps: (1) adding, in an inert atmosphere, polyethylene glycol and deoxy ethanol to an aqueous solution of ferrous salt, and mixing; (2) mixing the solution obtained in step (1) with an alkaline aqueous solution containing boron hydride and performing a reduction reaction; (3) after the reduction reaction in (2) is complete, obtaining a precipitate; and (4) vacuum drying the precipitate to obtain nano-scale zero-valent iron. A surfactant combined with the prepared nano-scale zero-valent iron can markedly improve remediation efficiency of soil polluted with volatile organic compounds (VOCs). A: A method for preparing sodium-based bentonite loaded zero-valent iron. First, natural bentonite is fully sodiumized at a pH value of 3, and then sodium-based bentonite and an iron salt are evenly mixed according to a specific ratio and placed in a three-necked flask; the pH value is adjusted to 11 by using a sodium hydroxide lye, an excessive amount of sodium borohydride solution is added dropwise to the three-necked flask, stirring is continued, and nitrogen is continuously aerated during the reaction so as to ensure that the inside of the flask is in an oxygen-free state; after finishing dropwise adding the sodium borohydride, stirring is continued such that same is fully reacted with the iron salt, and the product is loaded on the bentonite; and centrifugal separation is performed and the supernatant is removed, the remaining solid is washed three times by using pure water and absolute ethanol, and then freeze-drying is carried out to obtain zero-valent iron sodium-based bentonite. Further disclosed is an application of sodium-based bentonite loaded zero-valent iron. The rates of removing lead and pentachlorophenol from compound polluted groundwater by a sodium-based bentonite loaded zero-valent iron material can reach 98.0% and 96.1%, providing a realistic and feasible method for solving the problem of compound pollution of groundwater. B: A supercritical hydrothermal synthesis method for metal or metal oxide nanoparticles comprises the following steps: fully mixing a soluble metal salt solution with an alkaline solution or with a mixture of an alkaline solution, a reducing agent solution and an organic ligand to serve as a reaction precursor of supercritical hydrothermal synthesis; using a high-pressure pump to separately pressurize and pump the reaction precursor and preheated supercritical water into a mixer, heating up by direct mixing, and then performing a supercritical hydrothermal synthesis reaction; and after reaction for a period of time, cooling, centrifuging and drying the obtained product, so as to obtain metal or metal oxide nanoparticles. The metal or metal oxide nanoparticles prepared by using the method have the advantages of small particle size, good dispersibility, and high purity. C: The present invention relates to a method for preparing a water-purifying charcoal composite material with a low loading amount of nano zero-valent iron and nano silver. The water-purifying charcoal composite material with a low loading amount of nano zero-valent iron and nano silver prepared by the preparation method has a high specific surface area, the loading amounts of iron and silver are low in the composite material, and the particle sizes of the nano zero-valent iron and nano silver particles are both less than 20 nm. The water-purifying charcoal composite material can simultaneously adsorb and convert or degrade a variety of pollutants in drinking water, and the release amount of iron and silver is extremely low, and so same is a water-purifying material with great application value. D: The present invention provides a method for preparing a graphene/nano-carbon particle composite. The method comprises: 1) oxidizing graphite to prepare oxidized graphene, and adding the obtained oxidized graphene into water to prepare a suspension liquid; 2) adding nano-carbon particles into a water solution with a surface active agent to obtain a suspension liquid of the nano-carbon particles; 3) mixing the suspension liquid of the oxidized graphene with the suspension liquid of the nano-carbon particles, so as to obtain a mixed suspension liquid; 4) performing spray drying on the uniformly mixed suspension liquid to obtain powder; and 5) performing reduction treatment on the powder obtained in step 4), or placing the powder obtained in step 4) in an inert gas atmosphere, preheating the powder, and then performing reduction reaction in a reducing atmosphere, so as to finally prepare the graphene composite loaded with the nano-carbon particles. The present invention also relates to the graphene/nano-carbon particle composite obtained by using the method of the present invention, and applications of the graphene/nano-carbon particle composite used as a supercapacitor material, a catalyst carrier or an infrared optical material.

B

Please select the most similar patent number from A, B, C and D. Which number is? A combined roller apparatus, comprising a basic roller (1) and at least one adjustable roller (2). The basic roller (1) and the adjustable roller (2) are both mounted on a center shaft (3). The adjustable roller (2) is mounted on a side face of the basic roller (1) and can be close to or distant from the basic roller (1). An adjustable working face (21) is provided on the adjustable roller (2). A basic working face (11) is provided on the basic roller (1). The adjustable working face (21) works in conjunction with the basic working face (11) to achieve continuous material forming work. The combined roller apparatus can produce products of different specifications in a production line without roller replacement. A: A twist drill for smart home processing. The twist drill comprises an adjustable portion (2), wherein a mounting portion (1) is formed at one end of the adjustable portion (2), and a working portion (3) is fixed to the other end thereof, the adjustable portion (2) comprises an adjustable cavity with an open end close to the working portion (3), an adjustable mechanism (21) is fixed to the end inside the adjustable cavity that is close to the mounting portion (1), and a shock absorption mechanism (23) is fixed to the end thereof close to the working portion (3). The length adjustment function of the twist drill in use can be achieved by means of the adjustable mechanism (21), such that the application range of the twist drill is expanded. The vibration amplitude of the working portion (3) can be effectively reduced by means of the shock absorption mechanism (23), thereby preventing a drill bit from breaking due to large vibration amplitude, and also improving stability and precision of the drill bit during working. B: An extrusion roller device and rolling mill equipment, the extrusion roller device comprising: a moving extrusion roller (20) and a rotating shaft (10), the rotating shaft comprising an eccentric shaft segment (11), and the moving extrusion roller comprising a left extrusion roller (21) and a right extrusion roller (22); the left extrusion roller is axially fixedly mounted on a left mounting shaft (111) of the eccentric shaft segment, while the right extrusion roller is arranged opposite to the left extrusion roller and is axially fixedly mounted on a right mounting shaft (112) of the eccentric shaft segment; the axis of the left mounting shaft and the axis of the right mounting shaft are parallel and do not overlap; when the rotating shaft rotates, the left extrusion roller and the right extrusion roller rotate synchronously with the eccentric shaft segment to form a left and a right extrusion surface having a height difference. By means of mounting the left extrusion roller and the right extrusion roller of the moving extrusion roller on the eccentric shaft segment of the rotating shaft respectively, when the rotating shaft rotates, the outer diameters of the extrusion surfaces of the two extrusion rollers may generate different height differences at different positions such that the working position of the extrusion rollers may be adjusted, while the phenomenon of bending deformation of the rotating shaft is reduced, thus increasing the precision of extrusion work. C: An adjustable welding tooling for a plastic packaging IPM, comprising a substrate (1), wherein a first groove (2) for accommodating a PCB board (4) and a second groove (3) for accommodating a DBC board (5) are arranged on the substrate (1), the depth of the second groove (3) being greater than the depth of the first groove (2); and a slide block (6) is arranged at the bottom of the second groove (3), and the slide block (6) is adjustable in a longitudinal position in the second groove (3). The slide block (6) is arranged at the bottom of the second groove (3), and the slide block (6) is adjustable in the longitudinal position in the second groove (3), so that the longitudinal position of the DBC board (5) placed in the second groove (3) can be adjusted during the usage process, so as to complete brushing a solder paste onto the surfaces of a PCB board (4) and a DBC board (5) and complete the assembly with a wire frame without changing the tooling, so that a tooling device is saved, the work efficiency is improved, and the qualified rate of finished products is further improved. D: A drilling and bursting heading machine, comprising a drilling and bursting device (1), an angle control device, a forward-backward telescopic device, and a cantilever type heading machine (2). The drilling and bursting device (1) is mounted on a forward-backward moving component of the forward-backward telescopic device by means of the angle control device; the forward-backward telescopic device is mounted on the cantilever type heading machine (2); the drilling and bursting device (1) comprises a fixing support (1-20), as well as a rock drilling component and a bursting component fixedly mounted on the fixing support (1-20); the angle control device comprises a mounting base (1-15), an auxiliary rotary hydraulic motor (1-14), an adjustment hydraulic cylinder (1-13), and a main rotary hydraulic motor (1-12); when the forward-backward moving component of the forward-backward telescopic device completely extends out, a distance from a front end of the drilling and bursting device (1) to a working plane is less than a distance from a front end of a cutting head of the cantilever type heading machine (2) to the working plane. The drilling and bursting heading machine has a compact structure and is able to quickly implement punching and bursting on a hard rock stratum having a rock hardness greater than 10 without increasing the power consumption, so that the heading efficiency is improved and potential safety risks are reduced.

B

Please select the most similar patent number from A, B, C and D. Which number is? A stacked drive compact multi-roller rolling mill, comprising a machine frame (6), roller shafts (2) and rollers (1) disposed on the roller shafts (2); a plurality of roller shafts are circumferentially arranged in the same plane so that the rollers on the roller shafts form rolling holes; the multi-roller rolling mill further comprises drive shafts (3) in one-to-one correspondence with the roller shafts; drive gears (3-1) are disposed on the drive shafts; the roller shafts are provided with driven gears (2-1) engaged with the drive gears; the drive shafts are further provided with bevel gears (3-2); neighboring bevel gears on different drive shafts are mutually engaged so that the planes of the roller shafts and the planes of the drive shafts form a stacked drive structure. By employing stacked drive, the multi-roller rolling mill reduces the complexity of a rolling mill drive system, shortens the drive chain, improves drive efficiency, and avoids adverse effect on the engagement of the bevel gears during roll gap adjustment. A: An auto-leveling drive axle device for a wheel tractor, and leveling method. The device comprises a transmission device and a leveling device. The transmission device comprises a drive axle housing (2), a half-shaft bevel gear (3), a vertical transmission shaft (4), and a wheel-side planetary reduction gear mechanism (9). The vertical transmission shaft (4) has an upper end connected to an upper vertical shaft bevel gear (5) via a spline, and a lower end fixed to a lower vertical shaft bevel gear (11). The half-shaft bevel gear (3) is mounted on the drive axle housing (2) by means of a bearing, and meshes with the upper vertical shaft bevel gear (5). The lower vertical shaft bevel gear (11) meshes with a bevel gear of the wheel-side planetary reduction gear mechanism (9) to drive a wheel (8). The leveling device employs a hydraulic system, and the hydraulic system comprises a hydraulic solenoid-operated directional control valve (10) and a hydraulic cavity in communication therewith and provided below the drive axle housing. By controlling a liquid to flow into or out of the hydraulic cavity, the drive axle housing (2) is driven to move upward or downward with respect to the wheel (8), thus realizing leveling of the drive axle. The device of the present invention changes only a vertical position of a drive axle with respect to a wheel, and a wheel shaft distance and wheel center spacing are not changed, thus improving traveling stability of a vehicle. B: A flexible shaft transmission system for a motorcycle comprises a first gear box (1). A first driving gear (11) and a driven gear (12) meshed with each other are provided in the house of the first gear box. The first driving gear is connected with a spline output shaft of a motorcycle engine through a spline hole being coaxial with the first driving gear. The first driven gear is fixedly mounted on a first gear shaft (13), and the first driven gear is engaged with a second driven gear (14). A driving bevel gear (16) is coaxially fixed with the second driven gear through a second gear shaft (15). The driving bevel is meshed with a driven bevel gear (17), and the driven bevel gear is connected with the input end of a transmission flexible shaft (3) at an equal rotating speed. The house of the first gear box is composed of a first box body (18) and a first box lid (19). The first driving gear, the first gear shaft and the second gear shaft are respectively supported on the first box body and the first box lid through bearings arranged on the two ends thereof. The transmission system is reasonably structured, expediently manufactured and is suitable for mass production. Furthermore, the accuracy of the first gear box is well kept and the service life of the transmission system is prolonged. C: Disclosed are an independently driven rolling mill and a unit therefor, the independently driven rolling mill comprising an electric motor (6), a gearbox (4), a bevel gear box (1-1, 1-2) and a roller box (2) arranged in succession, wherein one electric motor corresponds to one gearbox and is connected via a connecting shaft I (5), the gearbox and the bevel gear box are connected via a connecting shaft II (3), and one bevel gear box corresponds to one roller box and is connected via geared transmission. Using an independent electric motor drive, the equipment structure is much simpler than a centralised drive, the equipment structure is simple and compact and more convenient for increasing high speed operating stability of the equipment; by means of different rolling directions, the unit enables rolling mills to be arranged at the same side or alternately arranged on different sides, which can significantly save on space occupied by rolling mills in the width direction, enabling the whole structural layout to be more compact. D: Disclosed is a high-efficiency stirring and mixing machine, comprising a stirring and mixing pool, two vertically arranged guide rails, and a machine frame moving along the guide rails, characterized in that a transverse mounting frame is arranged on the machine frame, a driving shaft is rotatably arranged on the mounting frame, an actuator connected to the driving shaft is arranged on the machine frame, and both ends of the driving shaft are connected, via a transmission belt, to a stirring and mixing frame located in the stirring and mixing pool; and multiple driving bevel gears are coaxially arranged on the driving shaft, driven bevel gears engaged with the driving bevel gears are rotatably arranged on the mounting frame, the center of each of the driven bevel gears is connected to a rotary shaft extending downwards into the stirring and mixing pool, and each of the rotary shafts is provided with a mixing mechanism. The key point of the technical solution thereof is that the actuator drives the driving shaft to rotate, so that the mixing mechanisms cooperate with the stirring and mixing frame to simultaneously mix materials so as to mix same more thoroughly.

C

Please select the most similar patent number from A, B, C and D. Which number is? A high-efficiency dephosphorization method and apparatus. The high-efficiency dephosphorization apparatus comprises a pressure-bearing cavity for circulating a dephosphorization medium. The pressure-bearing cavity is provided with a dephosphorization medium inlet. The side wall of the pressure-bearing cavity close to the surface of a metal blank to be dephosphorized is provided with a jet outlet passage of the dephosphorization medium. The jet outlet passage is a long, narrow slot, so that the stream jetted to the surface of the metal blank is in a non-diffused sheet shape. The pressure-bearing cavity is a pipeline with a circular axial cross section. The pipeline is integrally formed or formed by joining two semicircular grooves. The pressure-bearing cavity is in a bar shape, an annular shape or a special shape. In the present invention, the dephosphorization medium is in a non-diffused sheet form after being jetted, the pressure is basically not diffused, so that the utilization efficiency of the pressure is improved, the jet speed of the dephosphorization stream is reduced, and the service life of the dephosphorization apparatus is extended; in addition, the high-efficiency dephosphorization apparatus has no installation condition limitation, and especially when a protection apparatus is arranged, the jet distance of the dephosphorization stream can be reduced, and the flow efficiency can be improved. A: A multi-section water-soluble pipeline occluder, comprising a blocking part (1), the cross-section of the blocking part (1) being circular, and also comprising a pressure-bearing part (2) disposed on one side, a sealant (3) being arranged at the adjoining part of the blocking part (1) and the pressure-bearing part (2), the side surface of the pressure-bearing part (2) being provided with an accommodating part (4) for accommodating the sealant (3), and the blocking part (1), the sealant (3), and the pressure-bearing part (2) all being made of water-soluble material. The present multi-section water-soluble pipeline occluder can increase efficiency and safety. B: A wireless charging transmitter compression-resistant device capable of convection heat dissipation for an electric vehicle, comprising a closed mounting chamber made of a heat conduction material, and a pressure bearing chamber located on the mounting chamber and covering the mounting chamber. The mounting chamber is internally provided with an inner core layer (4); the bottom of the pressure bearing chamber is formed of the top of the mounting chamber; the side wall of the pressure bearing chamber is provided with heat dissipation channels making the pressure bearing chamber in communication with the outside; the top surface of the mounting chamber is provided with a protrusion (32) for supporting the inner top surface of the pressure bearing chamber; the bottom surface of the mounting chamber and the bottom surface of the side wall of the pressure bearing chamber are flush with each other, and are both supported on the ground. The device has high structural strength and good heat dissipation performance. C: Disclosed are an A/O-MBBR process-based integrated sewage treatment device and a sewage treatment method. The sewage treatment device comprises a clarification tank, an anoxic tank, a first-stage aerobic tank, a second-stage aerobic tank and a sedimentation tank which are sequentially connected via an overflow structure. A power structure is provided at the bottom of the sedimentation tank. The power structure is connected to the clarification tank via a return pipe. The return pipe is provided with a phosphorus removal agent access port and a pipe mixer. The pipe mixer is located downstream of the phosphorus removal agent access port. The anoxic filler in the anoxic tank is a combined filler, and is formed by combination of a polyurethane filler and a plastic spherical shell wrapping same. A carbon source agent access port is provided in a water inlet baffle of the anoxic tank. The aerobic fillers in the two aerobic tanks are respectively a high-density polyethylene MBBR filler and a PPC biological carrier. The components are installed in a housing, and the housing is made of a glass steel material. The sewage treatment device and the sewage treatment method use an A/O-MBBR pure biofilm process, have a strong impact resistance, and are supplemented with a chemical dephosphorization and carbon source feeding device, which can effectively enhance the removal of nitrogen and phosphorus contaminants. D: A mixed jet descaling device axially and eccentrically arranged for the inner wall of a metal pipe comprises a support rod (1) arranged inside the metal pipe (100), the support rod being parallel to the central axis of the metal pipe, eccentrically arranged and not concentric with the central axis of the metal pipe; and at least two spray nozzle units (2, 2', 2") for spraying the mixed jet, the spray nozzle units being arranged from front to back along the length direction of the support rod. At least two mixed jet spray nozzles (21, 21', 21") are provided in each spray nozzle unit and uniformly arranged along the circumference of the support rod in such a manner that the mixed jet spray nozzles diverge towards periphery of the support rod with the axis of the support rod as the center. The mixed jet spray nozzles of the spray nozzle units arranged from front to back are staggered from front to back in the circumferential direction of the inner wall of the to-be-descaled metal pipe, thereby forming a mixed jet spray nozzle matrix and creating an effective descaling zone capable of completely covering the circumferential surface of the inner wall of the metal pipe. The descaling device can achieve continuous, high efficient, stable and environment-friendly descaling for the inner wall surfaces of cold-state metal pipes.

D

Please select the most similar patent number from A, B, C and D. Which number is? A cooling apparatus for casting medium and large-sized propellers, comprising a supercooling box (9); a liquid conveying pipeline (4) which is uniformly distributed in a snakelike array is disposed in the supercooling box; a liquid nitrogen storage tank (2) is disposed above the supercooling box, and the liquid nitrogen storage tank is connected to a liquid nitrogen pump (1), wherein one end of the liquid conveying pipeline communicates with the liquid nitrogen storage tank, and the other end of the liquid conveying pipeline is connected to the liquid nitrogen pump; a plurality of air intake fans (3) are disposed on the right side of the supercooling box, a cooling box (6) is disposed on the left side of the supercooling box, a casting is disposed in the cooling box, and a plurality of exhaust fans (7) are disposed on the left side of the cooling box; a plurality of groups of dustproof filter screens (8) are disposed on the outer sides of the air intake fans and the exhaust fans, and the dustproof filter screens are disposed in slots on a box wall. The described cooling apparatus utilizes liquid nitrogen to efficiently cool castings, and uses detachable dustproof filter screens, which are convenient to replace, can prevent dust from sticking to air intake fans and exhaust fans, and keeps equipment clean, thus preventing obstructions to airflow caused by dust being attached to fan blades. A: Disclosed in the present invention is a cooling device for machine tool casting production, comprising a cooling table; support pads are fixedly mounted on a lower surface of the cooling table at positions close to two sides, and support frames are fixedly mounted on an upper surface of the cooling table at positions close to the edges at two sides, a support plate is supported on top ends of the support frames, and a water storage tank is fixedly mounted on an upper surface of the support plate, a water pump is provided inside the water storage tank, an output end of the water pump is connected to a delivery pipe, one end of the delivery pipe extends to the outside of the water storage tank, a spray head is connected to one end of the delivery pipe, and support tables are fixedly mounted on outer sides of the support frames, cooling fans are fixedly mounted on upper surfaces of the support tables, and cold air ducts are connected to output ends of the cooling fans. The cooling device for machine tool casting production of the present invention can conveniently push a casting onto a cooling table, and can improve the stability of casting placement. B: A greenhouse cultivation device employing heat generated by a variable-frequency drive or inverter. The device comprises a greenhouse (1). Several rows of heat dissipation elements (2) and ventilation pipes (3) are buried underground in the greenhouse. The heat dissipation elements are formed by multiple sheet-like radiators (21) connected in series, and each of the radiators is provided with a cooling liquid inlet (211) and a cooling liquid outlet (212). The cooling liquid inlet of a first radiator is connected to a heat generation element of a variable-frequency drive or an inverter via a cooling liquid pipe (4). The cooling liquid outlet of a last radiator is connected to an in-line pump (5) via a cooling liquid pipe. The ventilation pipes have two ends protruding from the ground and located outside of the greenhouse, and have walls extending upward to form several air discharge pipes (32) protruding from the ground and located within the greenhouse. A roof of the greenhouse is provided with a skylight. A temperature sensor is provided within the greenhouse. The device fully utilizes waste heat generated by a heat generation element of a variable-frequency drive or an inverter, thus saving energy for winter cultivation in a greenhouse, and is environmental friendly and energy saving. C: A greenhouse cultivation system employing heat generated by a variable-frequency drive or inverter. The system comprises a greenhouse (1). Several water channels (2) and ventilation pipes (3) are arranged in parallel and buried underground in the greenhouse. Each of the water channels is secured with a heat dissipation tube (4) therein and provided with a cooling liquid inlet (21) and cooling liquid outlet (22), and the heat dissipation tube has one end fastened to the cooling liquid inlet of said water channel and the other end fastened to the cooling liquid outlet of said water channel. The cooling liquid inlets of the water channels are connected to a heat generation element (6) of a variable-frequency drive or an inverter via a cooling liquid pipe (5), and the cooling liquid outlets of the water channels are connected to an in-line pump (7) via a cooling liquid pipe. The ventilation pipes have two ends protruding from the ground and located outside of the greenhouse, and have walls extending upward to form several air discharge pipes (32) protruding from the ground and located within the greenhouse. A roof of the greenhouse is provided with a skylight. A temperature sensor is provided within the greenhouse. The system fully utilizes waste heat generated by a heat generation element of a variable-frequency drive or an inverter, thus saving energy for winter cultivation in a greenhouse, and is environmental friendly and energy saving. D: A structure for cooling a cylinder head of a four-stroke engine. Arranged at the center of the cylinder head (1) is a fuel injector sleeve (2). Arranged around the fuel injector sleeve (2) are four valve seats (4) distributed evenly along the circumferential direction. Provided at a bottom face of the cylinder head (1) is a cooling water inlet (1a), which is used for introducing cooling water from a machine body to the cylinder head (1). Arranged within the cylinder head (1) is a cooling water passage (1b) in communication with the cooling water inlet (1a). The cooling water passage (1b) is arranged around the four valve seats (4). Arranged around the fuel injector sleeve (2) is a cooling chamber (1d) used for cooling a fuel injector and an air inlet/outlet passage. The cooling chamber (1d) is arranged above the cooling water passage (1b) and is in communication with the cooling water passage (1b) via a cooling water inlet passage (1c). The cooling water inlet passage (1c) is arranged in proximity around the fuel injector sleeve (2). Provided at a top part of the cooling chamber (1d) is a cooling water outlet (1e) used for discharging the cooling water. The mechanical load and heat load capacities of the cylinder head of the present invention are greatly improved, thus allowing for highly efficient completion of cooling of components of the cylinder head.

A

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed are a vertical milling insert (5) and a dense gear milling cutter, wherein the vertical milling insert (5) comprises an insert body (1) and a cutter head unit, the insert body (1) is provided with a mounting hole (11) for mounting the vertical milling insert (5) on the milling cutter, the cutter head unit is mounted on the insert body (1), and the cutter head unit is of a dual cutter head structure. In the vertical milling insert (5), a folded surface structure cooperates with a positioning structure in the milling cutter for positioning, and when in use, the folded surface structure will not be worn, such that reliable positioning can be ensured when two cutters are used. A: A disc-type underreamer, helping process different apertures, comprises a main shaft (1) connected to a motor output shaft. One end of the main shaft (1) is connected with a circular aperture regulation disc (2), and the aperture regulation disc (2) is rotatably sheathed in a cutterhead (3) arranged on the front end of the aperture regulation disc (2). A rear side of the cutterhead (3) is provided with an embedding groove (30) in nested cooperation with the aperture regulation disc (2), and a front side of the cutterhead (3) is radially provided with at least one pair of blade assemblies (5) symmetrically arranged relative to the center of the cutterhead (3). Each blade assembly (5) comprises a blade (50), a cutter holder head (51), and a cutter holder driving block (52) fixed on the cutter holder head (51). The blade (50) is perpendicularly fixed on the cutter holder head (51). Two sides of a junction of the cutter holder head (51) and the cutter holder driving block (52) form an ''I''-shaped groove (511), the corresponding cutterhead (3) is radially provided with an inverse ''T''-shaped groove (31), and the ''I''-shaped groove (511) on the junction of the cutter holder head (51) and the cutter holder driving block (52) is sheathed in the inverse ''T''-shaped groove (31) of the cutterhead (3) and capable of sliding along the radial direction. An inner side of the aperture regulation disc (2) is provided with an involutes-shaped spiral groove (20) distributed on the whole disc surface. A bottom side of the corresponding cutter holder driving block (52) is provided with a plurality of tooth blocks (520) engaged with the spiral groove (20). B: A practical knife having a locking structure. The practical knife comprises a housing (1), a knife frame (2), a blade (3), a pushing button (4), and a knife frame locking device (5); the front end of the housing (1) is provided with a blade stretchable port (11) which can be used for stretching and retracting the blade (3), and a sliding groove which can be used for moving the pushing button (4) is provided on the side surface of the housing (1); and the blade (3) is mounted in the housing (1) by means of the knife frame (2) in a matched manner, and the blade (3) is controlled to be stretched and retracted in the blade stretchable port (11) by means of the pushing button (4); the knife frame locking device (5) achieves stretching locking the blade (3) by locking the knife frame (2). The knife frame locking device is adopted for locking the knife frame, the stretchable movement of the blade is limited, and thus the locking of the blade is achieved, and it is guaranteed that when this product is used, the blade cannot automatically stretch and retract so as to influence the cutting work. C: A milling cutter for chamfering, comprising a body (10), at least one blade (20), and at least two guide posts(30); the body (10) comprises an installation section (11) and a cutting section (12); the blade (20) is removably installed on the cutting section (12), therefore the blade (20) can be separately replaced when worn dull; the guide posts(30) are disposed on the cutting section (12) and protrude out of the outer surface of the cutting section (12), therefore when the blade (20) contacts and cuts a hole wall, the guide posts (30) simultaneously press against the hole wall, achieving the effects of reducing relative vibration and polishing; and the cutting section (12) itself is in a simply conical shape, thus facilitating manufacturing and reducing cost. D: Disclosed are a protection member (3), a blade assembly (10), and a mower (20). The mower (20) comprises: a machine body (206), a disk cutter (1), and the blade assembly (10), wherein the disk cutter (1) is arranged on the machine body (206); the blade assembly (10) is connected to the disk cutter (1) so as to follow the rotation of the disk cutter (1); and the blade assembly (10) comprises a blade (2) provided with a cutting part (21), and the protection member (3) arranged outside the blade (2) to prevent the cutting part (21) from being accidentally touched, the blade (2) is connected to the disk cutter (1), and at least part of a side edge of the cutting part (21) is exposed from the protection member (3) to facilitate cutting. In this way, by means of providing the protection member (3), the cutting part (21) of the blade (2) can be prevented from coming into direct contact with a person, such that the person can be prevented from being cut by the blade (2), so as to improve the use safety of the mower (20), and the blade (2) can also be protected so as to prolong the service life of the blade (2).

C

Please select the most similar patent number from A, B, C and D. Which number is? Provided is an automatic pipe drilling device, comprising a machining table (16), wherein a material guide pipe (2) is fixedly installed on the machining table (16); a machining notch (17) is provided in the middle of an upper portion of the material guide pipe (2); clamping assemblies used for assisting with fixing a pipe (1) are installed on the portions, on two sides of the machining notch (17), of the material guide pipe (2); a top plate (5) is arranged above the material guide pipe (2), and the top plate (5) is fixedly connected to the material guide pipe (2) by means of first telescopic cylinders (4) arranged on two sides of the top plate; a drill rod (14) is rotatably mounted in the top plate (5), the drill rod (14) is driven by a driving mechanism arranged at the top of the top plate (5) to rotate, and a drill bit (15) is mounted at a lower end of the drill rod (14); and a plurality of telescopic grinding heads (19) are circumferentially distributed on an upper portion of the drill bit (15), and an air pump (13) used for controlling the grinding heads (19) to extend and retract is mounted at the top of the top plate (5). The drilling device has a good drilling machining effect on a pipe, and inner and outer surfaces of a hole can be ground and deburred, and same is conducive to application and popularization. A: A sewing machine for garment production and processing, comprising a treadle-type sewing machine driving mechanism (2), supporting legs (4), a processing platform (6), and a sewing machine body (8). A driving motor (1) is mounted on the supporting legs (4), and a driving pulley (21) is mounted on an output shaft of the driving motor (1); the driving pulley (21) is connected to a driven pulley (11) mounted on a driving shaft of the sewing machine by means of a transmission belt (13); a connector (20) is further mounted at the end portion of the output shaft of the driving motor (1); a first U-shaped frame (15) is mounted on the lower side of the processing platform (6); a first sliding sleeve (16) is provided on the first U-shaped frame (15) in a matched and sliding mode; a generator (17) is mounted on the lower side of the first sliding sleeve (16), and a connecting base (19) is mounted on an output shaft of the generator (17); and manual telescopic cylinders (22) are further fixed to the supporting legs (4) and connected to the generator (17), and an illuminating lamp (7) electrically connected to the generator (17) is further mounted on the lower side of the processing end of the sewing machine body (8). According to the sewing machine, random switching between electric driving and treadle driving can be carried out, and the illuminating requirements of a working area can be ensured in a situation without electricity, such that the working progress is not influenced. B: Disclosed is an automatic processing device, specifically an automatic grain milling apparatus comprising a machine body (16). A grinding cavity (2) and a milling cavity (19) are respectively provided on an upper portion and a lower portion of the machine body (16). A rotary tube (6) is mounted at the center of the top portion of the machine body (16). The rotary tube (6) is driven to rotate by a drive mechanism provided on an outer side of the machine body (16). Multiple grinding blades (1) are mounted on the rotary tube (6) at a lower portion of the grinding cavity (2). A two-shaft extension motor (22) is supported and fixed by means of a support assembly in the milling cavity (19). An upper milling seat (25) is mounted and fixed on an upper output shaft of the two-shaft extension motor (22). A lower milling seat (21) is mounted and fixed on a lower output shaft of the two-shaft extension motor (22). A milling recess (11) forming a clearance fit with the upper milling seat (25) is provided at the top of the milling cavity (19). The grinding cavity (2) and the milling recess (11) communicate with each other by means of a material discharge hole (7). A material filter plate (20) matching the lower milling seat (21) is further provided in the milling cavity (19). Pre-grinding, secondary milling, and air blowing are performed, thereby achieving a good grain milling effect, improving the efficiency, and facilitating promotion. C: A board material high precision drilling apparatus for computer production, which relates to the technical field of equipment for computer production and machining. The apparatus comprises a base cabinet (1), support posts (2) are fixedly connected at two sides on the base cabinet (1), a mount ring (4) is fixedly connected at upper ends of the support posts (2), a mount cabinet (5) is fixedly connected at top parts of the support posts (2) above the mount ring (4), a separating plate (41) is fixedly connected at an upper end within the mount cabinet (5), mount posts (10) are rotatably connected within the mount cabinet (5) below the separating plate (41), cylindrical cams (6) are fixedly sleeved on the mount posts (10), mount rods (9) are fixedly connected at bottom parts of the separating plate (41) on the side of the cylindrical cams (6), rotating rods (18) are rotatably connected on the mount rods (9), an arc-shaped gear disc (8) is fixedly connected at one end of each rotating rod (18), extending and retracting cylinders (12) are fixedly connected at bottom parts of the separating plate (41) between the mount rods (9), a first mount plate (15) is fixedly connected at bottom parts of the extending and retracting cylinders (12), gear racks (11) are fixedly connected at two sides of the first mount plate (15), a second mount plate (17) is fixedly connected between the gear racks (11) below the first mount plate (15), and a drill bit (29) is rotatably connected at a bottom part of the second mount plate (17). The apparatus has a sensible structure in principle and design, operation and use are quick and convenient, and the apparatus is highly practical. D: The present invention relates to the field of stainless steel pipe machining, and specifically to a surface polishing apparatus for a stainless steel pipe, comprising a top plate and a bottom plate base. A second support frame and a first support frame are fixedly mounted between the top plate and the bottom plate base, respectively; a polishing cylinder is rotatably mounted on the first support frame; an inner cavity is formed in the inner side of the polishing cylinder in a penetrating mode; polishing bristles are mounted on the cavity wall of the middle of the inner cavity; multiple dust suction holes are formed in the cavity walls of two ends of the inner cavity; the multiple dust suction holes are communicated with an annular cavity; a driving assembly used for driving the polishing cylinder to reciprocatingly rotate is further mounted on the first support frame; a dust removal box is further mounted on the first support frame; an exhaust fan is mounted on the dust removal box; and the exhaust fan is used for exhausting air at the two ends of the inner cavity through the multiple dust suction holes. The present invention can perform an all-around polishing operation, and can perform a synchronous and reliable dust removal operation during polishing, such that the surface polishing machining effect and efficiency of the stainless steel pipe are improved.

C

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed is a rotary cutting tool, comprising a cutting portion (10), wherein the cutting portion (10) is provided with an auxiliary spiral groove (102) and a plurality of right-handed main spiral grooves (101) with the same spiral angle. The auxiliary spiral groove (102) comprises a left-handed spiral groove spiralling up from a front end of the cutting portion (10) to a rear end thereof. The auxiliary spiral groove which spirals up and the main spiral grooves are provided with a plurality of cutting teeth (130) with trapezoidal sections at the cutting portion (10). Along the spiral direction of the auxiliary spiral groove, the tooth widths of adjacent cutting teeth (130) are partially superposed. Since the tooth shape of the rotary cutting tool is of an approximately rectangular trapezoidal structure, it is ensured that the tooth width is substantially unchanged in the process of cutting and as abrasion increases, thereby ensuring the stability of cutting. Moreover, the alternation of teeth on the rotary cutting tool helps to remarkably improve chip-removal performance and cutting performance, so that not only are machined board edges of good quality, but also the service life of the cutting tool is prolonged. A: A miniature drill bit. The miniature drill bit comprises: a first rake face, a first flank face, a second rake face and a second flank face that are arranged at the position of a drill point; a first spiral groove extending from the drill point to a drill tail, and a second spiral groove symmetrical to the first spiral groove, the first spiral groove being intersected with the first rake face to form a first cutting edge, and the second spiral groove being intersected with the second rake face to form a second cutting edge; and a bias groove arranged at the position of a large-bit area of the drill bit, the bias groove being intersected with the second rake face, so that the length of the second cutting edge is smaller than that of the first cutting edge, and the bias groove being intersected with the second spiral groove. B: A drill bit for drilling a PCB comprises a body (10). One end of the body (10) is a drill tip, and a groove and breadth ratio constant segment and a groove and breadth ratio alternating change segment are sequentially disposed from the end where the drill tip is located to the other end of the body (10). A long spiral groove (101) and a short spiral groove (102) that are spirally surrounding and that are not intersected are formed in the outer side of the body. The groove and breadth ratio of each of the long spiral groove (101) and the short spiral groove (102) is constant at the groove and breadth ratio constant segment. The groove and breadth ratio of each of the long spiral groove (101) and the short spiral groove (102) changes alternately at the groove and breadth ratio alternating change segment. The short spiral groove of the groove and breadth ratio constant segment is connected to a staggered groove staggered with the short spiral groove. In the drill bit for drilling a PCB, the double-spiral-groove non-intersection design is used, the groove and breadth ratio alternately changes on the rear section of the drill bit, the two grooves discharge cuttings independently, the drill bit is unlikely to be blocked by the cuttings, and the cutting temperature can be controlled in a small range. In addition, the area of a cross section entity of the spiral groove and the core thickness taper can be increased, the bend resistance strength of the drill bit is improved, the hole site machining precision is high, and the machining quality of a drilled hole is good. C: A transversely-cutting compound drill bit, comprising a body (10). The body (10) comprises thereon multiple chip accommodating grooves (5) rotatedly provided according to a first right-handed helical line (11), and multiple cutting units (20) distributed on second right-handed helical lines (12) on either side of the chip accommodating grooves (5). The cutting units (20) comprise cutting teeth (4) and chip separating grooves (6) corresponding to the cutting teeth (4). The cutting teeth (4) are successively distributed in groups on the second right-handed helical lines (12) next to the corresponding chip separating grooves (6). The multiple chip separating grooves (6) are in communication with the chip accommodating grooves (5) The cutting teeth and the chip accommodating grooves of the transversely-cutting compound drill bit are helically distributed along the axis, thus increasing cutting and chip removal effects. D: A cutting tool and a cutter head structure (100) thereof. The cutter head structure (100) comprises a cutting edge portion (2), and the cutting edge portion (2) comprises a cutting body (21). The outer surface of the cutting body (21) is a cambered surface protruding forward, and is provided with a first cutting edge (22) and at least two second cutting edges (23). The first cutting edge (22) extends from one side of the cutting body (21) to the top region and then to the other side of the cutting body (21), the second cutting edges (23) are respectively disposed at two ends of the first cutting edge (22). A first chip groove (24) is defined between the first cutting edge (22) and the adjacent second cutting edge (23), and the width of the first chip groove (24) gradually increases from the top region to the two ends of the cutting body (21). The cutting tool provides high processing accuracy and stability and good chip discharging properties, and the service life of the cutting tool can be greatly prolonged.

D

Please select the most similar patent number from A, B, C and D. Which number is? A cutting machine (100), comprising a base (10) and a cutting system (30), positioning and feeding system (40), material collecting system (50), and a control box (60), all disposed on the base (10). The cutting system (30) and positioning and feeding system (40) are both electrically connected to the control box (60). The cutting system (30) is used to cut a material, the positioning and feeding system (40) is used to position and move the material as needed for material processing, and the material collecting system (50) is used to collect and recycle the scrap material generated from cutting. The cutting system (30) comprises a explosion-proof motor (31), a revolving shaft (32), a power transmission belt (33) connected to one end of the revolving shaft (32) and to the explosion-proof motor (31), a saw blade (34) disposed on the other end of the revolving shaft (32), and a guard (35) covering the saw blade (34). The positioning and feeding system (40) comprises a servomotor (41) and a positioning jig (42) disposed on the servomotor (41). The positioning jig (42) is used to position or secure the material, and is driven to move by the servomotor (41) such that the material is cut by the saw blade (34). The provision of the guard (35) prevents high-temperature scrap material from flying out during the cutting process, enhancing safety. Movement of the material for cutting is automatically controlled by the positioning and feeding system (40), reducing manual labor and enhancing productivity. A: A cutting device (20), comprising a cutting member (40) and a valve leaflet positioning mechanism (30). The cutting member (40) is provided with a cutting section (42) at a distal end, and the cutting section (42) is electrically connected to an ablation power supply at a proximal end; the cutting section (42) is used to cut a valve leaflet; and the valve leaflet positioning mechanism (30) is used to stabilize the position of the cut valve leaflet. Since the valve leaflet positioning mechanism (30) is capable of stabilizing the position of the cut valve leaflet, the cutting part (42) is placed on a valve leaflet to be cut and forms a radial cut on the cut valve leaflet by moving. The cut valve leaflet splits and forms an opening at a coronary artery, and may push open an original valve leaflet when a transcatheter heart valve is implanted. Therefore, the cut valve leaflet will not block the coronary artery orifice and will prevent the original valve leaflet from covering the coronary artery orifice during transcatheter aortic valve replacement and cause blocking. Also disclosed is a cutting system (100) provided with the cutting device (20). B: Disclosed is a tapping machine (100), comprising a rack (10), a feeding module (20), an unloading module (50), a positioning fixture (60) mounted on the rack (10), a tapping device (40) docking with the positioning fixture (60), and a control unit, wherein the tapping device (40) comprises a positive tapping module (410), and the positive tapping module (410) comprises a plurality of tapping shafts (4103) and a plurality of first servo motors (4101) corresponding to the plurality of tapping shafts (4103) on a one-to-one basis. The control unit is connected to the feeding module (20), the unloading module (50), the positioning fixture (60) and the tapping device (40), and controls the feeding module (20), the unloading module (50), the positioning fixture (60) and the tapping device (40) to act in a predetermined order, thereby realizing a cycle of action for feeding, tapping and unloading. At the same time, the plurality of tapping shafts (4103) can simultaneously tap a plurality of positions of a workpiece, thus allowing the tapping time to be shortened greatly. C: A cutting tool (100), comprises a housing (20); a motor (22) accommodated in the housing (20); a drive mechanism (23) connected to the motor (22) so as to drive a blade (24), the blade (24) having a blade plane; a bottom plate (136) connected to the housing (20), the bottom plate (136) comprising a first bottom plate (136) having a first bottom surface (138) and a second bottom plate (148) having a second bottom surface (152); an abutment surface (140), coplanar with the blade plane, is provided on at least one of the first bottom plate (136) and the second bottom plate (148), the abutment surface (140) is used for cooperating with a guide surface (111), the first bottom plate (136) and the second bottom plate (148) move relative to each other so as to expose the abutment surface (140). This cutting tool (100) operates very conveniently. Since the relative movement of the first bottom plate (136) and the second bottom plate (148) enables the exposure of the abutment surface (140), when cutting a workpiece, the abutment surface (140) cooperates with the guide surface (111), and then the cutting tool (100) moves to cut. D: A tire material (100) conveying device, comprising a conveying frame (10), a lifting member (20), a positioning component, and a cutting component (40). The conveying frame (10) is provided with a cutting position. The tire material (100) is conveyed forwards on the conveying frame (10). The lifting member (20) is provided below the tire material (100), and can move from bottom to top to lift the tire material (100). The positioning component is provided above the tire material (100), and comprises a first pressure plate (31) and a second pressure plate (32) arranged at intervals. The first pressure plate (31) can release or press a tire component (100a). The cutting component (40) is provided above the conveying frame (10), and can move between the first pressure plate (31) and the second pressure plate (32) to cut the tire material (100) when both the first pressure plate (31) and the second pressure plate (32) are located at the pressing position.

C

Please select the most similar patent number from A, B, C and D. Which number is? A method for machining a housing having a side protrusion, comprising: performing stepped deep drawing on a sheet material (50) to obtain a housing having side walls (52), a bottom (53), and an opening (510), wherein rounded corners are formed between the side walls (52) and the bottom (53), and a deep-drawn step (55) having the height of a side protrusion is formed on the side wall (52); pressing the side walls (52) backward to decrease the rounded corners between the side walls (52) and the bottom (53), such that the thickness at the rounded corners subsequent to the backward pressing is sufficient for computer numerical control (CNC) machining; performing necking on the opening of the deep-drawn step (55), such that the inner side surface and outer side surface of the opening of the deep-drawn step (55) are respectively flush with the inner side surface and outer side surface of the opening of the side walls connected with the deep-drawn step (55); and performing CNC machining on the deep-drawn step (55) to obtain a housing having target dimensions. Moreover, a mold for machining a housing having a side protrusion is provided. The machining method can reduce the allowance for CNC machining, thereby decreasing the machining deformation caused by residual stresses generated by plenty of CNC machining, and meanwhile saves the sheet material, thereby reducing machining costs. A: Provided is an easy-assembly laptop shaft, comprising a stop member (1) and a hollow housing (2). The stop member (1) is arranged in the housing (2). Openings (3) are provided at sidewalls of the housing (2) extending in the length direction of the housing (2). The opening (3) has two opposing sidewalls, both of which are provided with protruding portions (31). A protruding portion (31) of one sidewall corresponds to a gap (32) between adjacent protruding portions (31) of the other sidewall. An inner surface of the housing (2) is provided with a positioning groove (21) along a circumferential direction of the housing (2). The positioning groove (21) matches the stop member (1). The stop member can be conveniently positioned within a hollow housing of the easy-assembly laptop shaft and subsequently an opening of the housing can be soldered. Compared with a conventional soldering technique, the utility model improves processing efficiency and assembly accuracy. B: A machining process for a large-diameter thin-walled part. The machining process comprises the steps of: S1. selecting a raw material having an appropriate size; S2, machining an inner hole (5); S3. performing shaping; S4. performing aging heat treatment; S5. semi-finishing the inner hole (5) and part of the shape; S6. semi-finishing part of the shape; S7. performing natural aging treatment; S8. finishing the inner hole (5) and a second end (8); S9. finishing a second outer circle (2) and a process step (6); S10. finishing a first outer circle (1); S11. machining and forming a flange (3); and S12. machining and forming multiple protrusions (4). According to the machining process, a stable process route is designed to control deformation, reduce the number of times of positioning and clamping, shorten the machining time, improve machining efficiency and ensure product quality; the one-time machining of all features is implemented by means of the positioning of the inner hole (5), ensuring that product deformation is within a controllable range; reasonable process parameters are used to achieve accurate production guidance work, get rid of the limitation of special person and special machine, and well implement automated production. C: Provided are a novel thread and device, particular a thread provided with steps at the side surface to prevent a fastener from getting loose, and a bolt, screw and the like provided with the novel thread. Further provided is a machining method. The steps are located in a threaded fastening force bearing surface; the steps are unfolded from a thread root (2) to a thread top (1) and in an inverted toothed shape; the steps are located at the whole or a part of a portion between the thread root and the thread top; threads matingly engaged are each provided with an anti-loosening thread; the steps can be conveniently machined on the side face of the thread by using a bevel gear hobbing cutter. D: A method of manufacturing a metal reinforced rim of a composite material fan blade involves separately manufacturing three parts of a metal reinforced rim (20), including a first sidewall panel (201), a second sidewall panel (202) and a nose cone (203). In a manufacturing process, an inner side surface (201a) of the first sidewall panel and an inner side surface (202a) of the second sidewall panel are separately formed. After the first sidewall panel and the second sidewall panel have been connected, an outer side surface (201b) of the first sidewall panel and an outer side surface (202b) of the second sidewall panel are connected to form a processing surface (20B) for construction of the nose cone (203) of the metal reinforced rim. The invention eliminates an additional step for processing an inner surface of a metal reinforced rim, thereby significantly reducing the difficulties of processing the inner surface of the metal reinforced rim.

B

Please select the most similar patent number from A, B, C and D. Which number is? A housing assembly (110), comprising a transparent substrate (110) and a reflective layer (120); the transparent substrate (110) is provided with a decorative surface (111), and the decorative surface (111) is provided with coarse region (113); the reflective layer (120) is disposed on the decorative surface (111), and the reflective layer (120) covers at least a part of the coarse region (113). A: A housing assembly (10), a processing method therefor, and an electronic device (100). The housing assembly (10) comprises: a substrate (1), which is provided with an inner surface and an outer surface which are arranged opposite to each other, the substrate (1) being a transparent piece; a touch layer (2), which is provided at the inner surface of the substrate (1), the touch layer (2) being suitable for electrically connecting to a motherboard (20) of the electronic device (100); and a decorative layer (10a), which is provided at a side surface of the touch layer (2) away from the substrate (1). B: A screen (10) having a high contrast and high luminous efficiency comprises the following layers sequentially stacked from an incident side of projected light rays (31): a micro-lens layer (123), a transparent matrix layer (120), a total reflection layer (121), and a light-absorbing layer (11). The light-absorbing layer (11) absorbs light passing through the micro-lens layer (123), the transparent matrix layer (120) and the total reflection layer (121). The micro-lens layer (123) comprises a plurality of micro-lens units. The total reflection layer (121) comprises a plurality of microstructure units. The microstructure unit has a lower first flat surface (124) and an upper second flat surface (125). The first flat surface (124) intersects the second flat surface (125). The plurality of microstructure units form a serrated structure. The micro-lens units and the microstructure units are at least partially arranged in an alternating manner, such that the micro-lens units converge at least a portion of the projected light rays (31) toward the first flat surface (124). The projected light rays converged toward the first flat surface (124) exit after being totally reflected by the first flat surface (124) and the second flat surface (125) sequentially. Also disclosed is a projection system having the screen. C: Disclosed are a color conversion assembly (100) and a manufacturing method therefor, and a display panel, wherein same can mitigate the problem of cross-coloring between neighboring sub-pixels and can improve the light extraction efficiency thereof. The color conversion assembly (100) comprises: a substrate (110); a light blocking layer (120) located on the substrate (110) and having a plurality of channels; and a color conversion layer (140) located in at least some of the channels, wherein the color conversion layer (140) converts incident light (L1) into light of a target color. The light blocking layer (120) comprises: a support layer (121) located on the substrate (110); a black matrix layer (122) extending continuously on an upper surface and a side surface of the support layer (121), wherein the upper surface of the support layer (121) faces away from the substrate (110); and a reflective layer (123) extending continuously on an upper surface and a side surface of the black matrix layer (122), wherein the upper surface of the black matrix layer (122) faces away from the substrate (110). D: A liquid crystal display device and a reflective display module (11) thereof. The reflective display module (11) comprises: a first substrate (111); a reflecting layer (113) provided on the first substrate (111) and used for reflecting incident light; and a plurality of color resistors (112) provided on the reflecting layer (113), wherein the incident light enters the reflecting layer (113) through the color resistors (112), and is reflected by the reflecting layer (113) to obtain reflected light, and the reflected light is emitted through the same resistors (112). Therefore, the incident light and the reflected light are prevented from passing through two different types of color resistors (112), thereby improving the reflectivity and eliminating color mixture.

A

Please select the most similar patent number from A, B, C and D. Which number is? A water jet cutting machine comprises a Y-axis part (1), a Z-axis fixed seat part (2), a Z-axis part (3), a cutting platform (4), a zinc-plated strip (5), a button box (6), a sand box (7), a grinding material feeding device (8) and a cutting head (9). The sand box (7) and the grinding material feeding device (8) form a feeding system. The sand box (7) is composed of an upper hopper (71) and a lower hopper (72) that are connected together by a flange provided with a sealing ring. The upper hopper (71), as a material storage tank, can hold a large amount of grinding material, and the volume of the grinding material in storage can be measured by a sensor. The lower hopper (72) is internally provided with a miniature air cylinder (722); an air cylinder cap (721) moves up and down to close or open the upper and lower hoppers for communication. A sand conveying system provided with a volume control device of the water jet cutting machine avoids wasting sand and gravel during the production process and saves the production cost. A: Provided is a water jet machining device, comprising a pressure provision system, a jet system, and a feed provision system. The pressure provision system and the feed provision system are separately connected to the jet system. The jet system comprises a sand-mixing chamber and a nozzle. High-pressure water and an abrasive are mixed to form a mixture in the sand-mixing chamber. The jet system also comprises a shaping tube. A first inlet of the shaping tube is in communication with the exit of the sand-mixing chamber. The exit of the shaping tube is in communication with the nozzle. The mixture is injected into the shaping tube from the exit of the sand-mixing chamber at a low speed, forming a central water jet. The pressure provision system also comprises a buffering medium provision mechanism. The buffering medium provision mechanism is in communication with a second inlet of the shaping tube. The buffering medium provision mechanism injects the buffering medium into the shaping tube. The buffering medium sleeves the central water jet. The central water jet sleeved in the buffering medium is ejected out of the nozzle and works on the component to be machined. The water jet machining device of the present invention lowers the wear rate of the nozzle and the sand-mixing chamber, thereby reducing maintenance costs. B: A high-efficient strip cutting machine, used for cutting a raw material roll core (15), and comprising a workbench (1), a rotating mechanism (2) and a movable cutting mechanism (3). The rotating mechanism (2) comprises a rotating mandrel (4), a drive motor (5) is mounted at one end of the rotating mandrel (4) in a matched mode, and the other end of the rotating mandrel (4) is connected to a support (6); an automatic clamping and fixing device is further provided at the end of the rotating mandrel (4) close to the drive motor (5), and comprises a clamping sleeve (7), a bearing (8), a pushing sleeve (9), a transmission sleeve (10), a clamping and fixing plate (11), an air cylinder (12), and a piston (13) provided in the air cylinder (12). After the raw material roll core (15) is mounted on the rotating mandrel (4) by means of the automatic clamping and fixing device, the raw material roll core (15) is automatically fixed by means of the automatic clamping and fixing device, and the raw material roll core can also be automatically released during discharging; time and labor are saved, the manual fixing and releasing time during feeding and discharging is reduced, and the production and processing efficiency is greatly improved. C: An automatic edge-tracing device for a laser cutting machine for a sheet material comprises a cutting platform mount (1). A cutting platform (2) is provided at a top end surface of the cutting platform mount (1). A left support (3) and a right support (4) are respectively provided at the left and right sides of the top of the cutting platform mount (1). A left movable block (5) and a right movable block (6) are respectively provided at inner walls of the left support (3) and the right support (4). The left support (3) and the right support (4) are connected by means of a cross rod (9). A power motor (7) is provided at the bottom of the right movable block (6). An output end of the power motor (7) penetrates the right movable block (6) to connect to a rotary shaft (71). The rotary shaft (71) is movably inserted into an inner cavity of a slot (8). The slots (8) are respectively arranged at the inner walls of the left support (3) and the right support (4). Also provided is an edge-tracing method of the automatic edge-tracing device for a laser cutting machine for a sheet material. The automatic edge-tracing device for a laser cutting machine for a sheet material and the edge-tracing method thereof can be operated easily, have high precision, shorten the processing time, improve processing efficiency, and reduce waste of a sheet material resulting from errors in manual alignment. D: Disclosed is automatic precast concrete component machining equipment, comprising a material-feeding device (1), a first material-conveying device (3), a second material-conveying device (4), a cleaning device (5), and a mold vibrating device (6). The material-feeding device (1) comprises a material feeding supporting seat (11), an upper end of the material feeding supporting seat (11) is provided with a first slide rail (12), a material-feeding hopper (13) is slidably connected to the first slide rail (12); the cleaning device comprises a water tank mechanism (51), a first cleaning mechanism (52), a second cleaning mechanism (53), and a third cleaning mechanism (54); a lower end of the first slide rail (12) is provided with a material storage device (2), the material storage device (2) comprises a supporting frame (21) and a material storage hopper (22) arranged at an upper end of the supporting frame (21); the first cleaning mechanism (52) is arranged on the material storage hopper (22); the first material-conveying device (3) comprises a first conveying frame (31), an upper end of the first conveying frame (31) is slidably connected with a material-conveying hopper (32); the second material-conveying device (4) comprises a second conveying frame (41) and a mold-conveying mechanism (7); the mold-conveying mechanism (7) comprises a plurality of first rollers (71); and the mold vibrating device (6) is arranged on an inner side of the second conveying frame (41). The machining equipment can be used for machining a precast concrete component more efficiently, the structure is simple and new, and the inventiveness is high.

A

Please select the most similar patent number from A, B, C and D. Which number is? A stepping double-sided shot blasting apparatus, comprising a cleaning chamber (1), a guide rail (2), shaft racks (3), hanging racks (4), a speed reducer (5), a motor (6), a frame (7), and inner supports (8). The cleaning chamber is located below the frame and above the speed reducer. A gap is formed between the cleaning chamber and the frame by means of the inner supports, and the guide rail is horizontally disposed at the gap. The outer wall of the cleaning chamber is provided with impeller heads (1.1), and two sections are provided with gates (1.2). The upper ends of the shaft racks extend into the guide rail, and the lower ends are inserted into gear holes provided inside the speed reducer to move along therewith. Each shaft rack hangs two hanging racks, and the shaft racks and the hanging racks are used for hanging gear blanks. The speed reducer is a planetary speed reducing mechanism, the shaft racks are inserted in shaft holes of four second star wheel (5.6), and when the speed reducer operates, the second star wheels rotate and revolve in linkage with the shaft racks. Under this structural condition, the gear blanks enter the cleaning chamber to be subjected to uniform shot blasting on both sides, and the shaft racks and the hanging racks temporarily located outside the cleaning chamber can be used for loading and unloading the gear blanks to be processed. In the apparatus, the shot blasting procedure and the loading and unloading procedure do not interfere with each other, and therefore, the production efficiency and equipment utilization rate are greatly improved. A: An endless belt shot blasting device comprises a shot blasting cabinet. A shot blaster is disposed above the shot blasting cabinet. A shot inlet of the shot blaster is connected to a shot outlet (51) of a shot-sand separator. A laterally inclined steel belt (9) is disposed inside the shot blasting cabinet. A feed roller (8) and a discharge roller (8') are arranged at two sides of the shot blasting cabinet to cooperate with the steel belt to convey shot. The shot blasting device further comprises a shot blasting cabinet angle adjustment mechanism comprising a support (23). A worm gear mechanism (24) is disposed above the support. An inner thread is arranged in a central hole of a worm wheel of the worm gear mechanism. A connecting and supporting block (26) is disposed on a screw mating with the thread of the worm wheel. The shot blasting cabinet is disposed on the connecting and supporting block. The invention uses the angle adjustment mechanism to change a duration a workpiece passes through the shot blasting cabinet, and the use of the steel belt for conveyance enables thorough shot blasting of the workpiece without missing any area of the workpiece. B: Disclosed is a speed reducer for driving a window curtain or a door curtain, comprising at least one involute planetary gear reducing mechanism (2), a cycloid gear reducing mechanism (1) in transmission connection to the involute planetary gear reducing mechanism (2), an output shaft (3) connected to the cycloid gear reducing mechanism (1), and a housing assembly (5), wherein the involute planetary gear reducing mechanism (2) comprises a sun gear (21) and at least one planetary gear (22), and the middle of the planetary gear (22) is provided with a mandrel (23) passing therethrough; the cycloid gear reducing mechanism (1) comprises a camshaft (11), the output shaft (3) sheathed at the upper end of the camshaft (11), at least one cycloid gear (13) sheathed on a cam of the camshaft (11), a plurality of pinwheels (14) meshed with a side face of the cycloid gear (13), and at least one pin shaft (15) in parallel to the axial direction for the cycloid gear (13) to pass through, and the upper end of the pin shaft (15) is fixedly connected to the output shaft (3); and the lower end of the camshaft (11) is fixedly connected to a first planet carrier (12), the mandrel (23) penetrates the first planet carrier (12) and is fixedly connected to the first planet carrier (12), the lower end of the sun gear (21) is sheathed with a first bearing (41), and the lower part of the camshaft (11) is further sheathed with a second bearing (42). The size of the speed reducer is small, the transmission efficiency is high, the noise is low, and the self-locking performance is good. C: A pellet former for sawdust, comprising: a machine base (1) on which a first electric motor (2) is placed; a reducer (3) connected to one end of an output shaft of the first electric motor (2); a forming mould (4) disposed at a side of the reducer (3), the forming mould (4) comprising a first fixed frame (5), a second fixed frame (6) and a transmission shaft (7), wherein the transmission shaft (7) is connected to the reducer (3), and the transmission shaft (7) is mounted between the first fixed frame (5) and the second fixed frame (6); extrusion gears (8) disposed on the transmission shaft (7); a baffle (9) disposed at the end of the extrusion gears (8) connected to the reducer (3); and an extrusion gear reinforcement lid (10) provided with an outlet orifice, which is disposed at the other end of the extrusion gears (8). The number of the extrusion gears (8) is greater than or equal to two, and two adjacent extrusion gears (8) rotate in opposite directions. An inlet orifice (11) is disposed above two extrusion gears (8), and a casing (12) is disposed surrounding the extrusion gears (8). The pellet former for sawdust can improve efficiency, allow pellets with high density to be formed, and is more labor-saving by means of two extrusion gears pressing inwardly toward each other. The whole former is simple in structure and small in volume, thus requiring smaller space for production and being convenient to repair. D: A three-stage two-gear speed reducer and an electric vehicle, relating to the technical field of mechanical transmission. The three-stage two-gear speed reducer comprises a shell (5), and an I-stage speed reducing mechanism, an II-stage speed reducing mechanism, an III-stage speed reducing mechanism and a meshing sleeve (9) which are arranged in the shell (5). The III-stage speed reducing mechanism is a driving and driven cylindrical gear speed reducing mechanism and comprises a driving cylindrical gear (7), and the I-stage speed reducing mechanism and the II-stage speed reducing mechanism are planetary speed reducing mechanisms correspondingly arranged on two axial sides of the driving cylindrical gear (7); and the meshing sleeve (9) is arranged between the II-stage speed reducing mechanism and the III-stage speed reducing mechanism, and is used for connecting the driving cylindrical gear (7) to a planetary gear (3) of the I-stage speed reducing mechanism or a planetary gear (10) of the II-stage speed reducing mechanism, such that two-gear shifting of the speed reducer is achieved. Compared with the three-stage speed reducer in the prior art, according to the three-stage two-gear speed reducer, a multi-parallel-shaft structure is avoided, the I-stage speed reducing mechanism and the II-stage speed reducing mechanism are correspondingly arranged on two sides of the driving cylindrical gear, the layout is more compact, and the power density is high; and furthermore, the stress deformation of parts is reduced, the rigidity of the parts is improved, unbalance loading is reduced, and the service life is prolonged.

A

Please select the most similar patent number from A, B, C and D. Which number is? A screwdriver, comprising a screwdriver head, the screwdriver head (1) being divided into a first screwdriver head part (11) and a second screwdriver head part (12), and the first screwdriver head part (11) and the second screwdriver head part (12) overlapping to form a complete screwdriver head (1); and a tension mechanism (2), which is used for generating tension so as to drive a screw when the screwdriver head (1) is in contact with a screw recess after the first screwdriver head part (11) and the second screwdriver head part (12) overlap. A screw (7), comprising a cross-shaped recess (71), a side surface of the cross-shaped recess (71) being triangular or quadrilateral. Therefore, after the first screwdriver head part (11) and the second screwdriver head part (12) are combined and inserted into the screw (7), the first screwdriver head part (11) and the second screwdriver head part (12) can be separated by means of the tension mechanism (2). In addition, the tension mechanism (2) provides tension to clamp the screw (7), and therefore, screws made of different materials can be clamped by means of the screwdriver, thereby improving the screw fastening efficiency, and avoiding the processes of magnetizing the screwdriver and so on. A: Disclosed is a magazine-type hand-held shaver (100), comprising a shaver head (10), a magazine body (20), a shaver head connection cover (30) and an elastic element (40). The shaver head comprises a first shaver head (10a) and a second shaver head (10b) which are interchangeable. The magazine body is of a hollow structure which forms an accommodation chamber (21) with a removal port (22) located at the upper end of the magazine body, and the shaver head is accommodated inside the accommodation chamber. The lower end of the shaver head connection cover is removably assembled on the magazine body and covers the removal port, and a connection part (31) is provided on the upper end of the shaver head connection cover, and is selectively assembled with the first shaver head or the second shaver head. The elastic element is accommodated inside the accommodation chamber, and tends to constantly drive the shaver head to slide to be opposite to the removal port. The shaver head can be easily stored in or taken out of the magazine body, and the magazine-type hand-held shaver is thus convenient to be carried about and used by a user when going out. B: An ultrasonic osteotome cutter bit, comprising a cutter bit head (1), a cutter bar (2), and a cutter body (3); one end of the cutter bar (2) is connected to the cutter bit head (1), and the other end of the cutter bar (2) is connected to the cutter body (3); the cutter bit head (1) has a shape of flat sheet; the top end (11) of the cutter bit head (1) is configured to be arc-shaped; one of side surfaces of the cutter bit head (1) is provided with a toothed structure (12); the top end (11) of the cutter bit head (1) is provided with a thickened portion which is increased in thickness compared with other parts of the cutter bit head (1). The ultrasonic osteotome cutter bit can converge energy produced by an ultrasonic transducer at a front part of the cutter so that the front part of the cutter has the strongest energy output to achieve the strongest working efficiency. The top end (11) of the cutter bit head (1) adopts an arc-shaped structure, so as to effectively avoid the top end from scratching tissues, thereby improving surgical safety. C: A multifunctional screwdriver comprises a handle (1) and a matching shaft (2), the matching shaft (2) being fixed to one end of the handle (1), wherein an end, which is away from the handle (1), of the matching shaft (2) is provided with two screwdriver bit holes, comprising a first screwdriver bit hole (21) and a second screwdriver bit hole (22); and the second screwdriver bit hole (22) is provided at the bottom of the first screwdriver bit hole (21). In the screwdriver, two screwdriver bit holes are provided on an end portion of the matching shaft, the bottom of one screwdriver bit hole is provided with the other screwdriver bit hole, thereby meeting the use of screwdriver bits with different thicknesses and different lengths, so that the matching shaft can be used in coordination with two types of screwdriver bits, thus increasing the use efficiency of the screwdriver. D: Disclosed is a cartridge type shaver (100), comprising a shaver head (10), a cartridge body (20) of a hollow structure for a hand to hold when shaving the face, and an elastic element (30). The shaver head comprises a first shaver head (10a) and a second shaver head (10b) replaceable with each other. The hollow structure forms an accommodation cavity (21) with an access port (231). The cartridge body is provided with a connection part (22). The shaver head is accommodated in the accommodation cavity. The connection part is selectively assembled and connected with the first shaver head or the second shaver head. The elastic element is accommodated in the accommodation cavity, and the elastic element has the tendency of constantly driving the shaver head to slide to the access port. Since the cartridge type shaver accommodates the shaver head in the cartridge body, and the shaver head accommodated in the cartridge body is pushed out by the elastic element, the shaver head can be conveniently stored in and taken out from the cartridge body, so as to facilitate being carried about and used by a user.

C

Please select the most similar patent number from A, B, C and D. Which number is? A handheld multifunctional machine, comprising a swing mechanism (10) and a motor and further comprising a reduction gearbox (20). One end of the reduction gearbox (20) is connected to the motor, the other end of the reduction gearbox (20) is connected to the swing mechanism (10), and the reduction gearbox (20) drives the swing mechanism (10) to operate. By adding the reduction gearbox (20) on a swing machine, the transmission ratio of a swing machine is improved, working efficiency is increased, and the processing of relatively deep holes and relatively hard materials may be achieved. A: Provided is a turbine fracturing apparatus, comprising a transporting device (2), a turbine engine (5), a reduction gearbox (6), a transmission mechanism (7) and a fracturing pump (8), the output end of the turbine engine (5) is connected with one end of the reduction gearbox (6), the other end of the reduction gearbox (6) is in transmission connected with the fracturing pump (8) through the transmission mechanism (7), the transportation device (2) is used for bearing the turbine engine (5), the reduction gearbox (6), the transmission mechanism (7) and the fracturing pump (8), the transportation device (2) comprises a chassis, the chassis is provided with a transporting section, a bearing section and a lapping section which are connected in sequence, when the turbine fracturing apparatus is in a working state, the bearing section can be contacted with the ground, when the turbine fracturing apparatus is in a transporting state, the bearing section does not make contact with the ground. B: Disclosed is a turbine fracturing semitrailer, comprising a semitrailer body (3), a turbine engine (7), a reduction gearbox (8), a transmission mechanism and a plunger pump (10), wherein the turbine engine (7), the reduction gearbox (8), the transmission mechanism and the plunger pump (10) are arranged on the semitrailer body (3); an output end of the turbine engine (7) is connected to the reduction gearbox (8); and the reduction gearbox (8) is in transmission connection with the plunger pump (10) by means of the transmission mechanism. By means of linear connection of the turbine engine (7), the reduction gearbox (8), the transmission mechanism and the plunger pump (10) in a power transmission direction, excessive transmission loss can be prevented, thereby ensuring efficient transmission performance. C: Disclosed is a semitrailer-mounted turbine fracturing apparatus, comprising a transportation device (200), an exhaust system, a turbine engine (500) and a plunger pump (600). The exhaust system is connected to an exhaust port of the turbine engine (500), an output end of the turbine engine (500) is directly connected to the plunger pump (600), and the transportation device (200) is used for bearing the exhaust system, the turbine engine (500) and the plunger pump (600). The plunger pump (600) comprises a power end assembly (1), a fluid end assembly (2) and a reduction gearbox assembly (3), wherein one end of the power end assembly (1) is connected to the fluid end assembly (2), and the other end of the power end assembly (1) is connected to the reduction gearbox assembly (3); and the reduction gearbox assembly (3) comprises a planetary reduction gearbox and a parallel reduction gearbox (10), and the planetary reduction gearbox and the parallel reduction gearbox (10) are used in cooperation, wherein the transmission ratio is 60:1 - 106:1. D: An oscillating power tool (1), comprising: a switch starting up and shutting down a motor (23); a trigger piece (25) used for triggering the switch; a transmission mechanism; an adjustment mechanism (6) used for enabling the oscillating power tool (1) to have different oscillation angles. The oscillating power tool (1) also comprises a stopper mechanism movably arranged with respect to a housing (2), the stopper mechanism having two positions. When the switch starts up the motor (23), the stopper mechanism is located in a first position, and prevents the adjustment mechanism (6) from adjusting the transmission mechanism. When the adjustment mechanism (6) adjusts the transmission mechanism, the stopper mechanism is located in a second position, and prevents the switch from starting up the motor (23). A user is not able to adjust the oscillation angle when the oscillating power tool (1) is turned on. During adjustment of the oscillation angle by the adjustment mechanism (6), i.e. when the adjustment mechanism (6) is not adjusted in place, the user is not able to turn on the oscillating power tool (1). The present technical solution increases the reliability of the oscillating power tool (1), and improves operational safety.

D

Please select the most similar patent number from A, B, C and D. Which number is? A power tool (10), comprising a working head (15), a motor (11), a casing (13), and a handle (12). The motor comprises a motor shaft defined with a central axis, and the motor shaft drives the working head to effect the functions of the power tool. The casing is used to contain or secure the motor. The handle is held by a user and comprises a handle housing. The handle housing is made of a first material and is provided with a receiving cavity. The power tool further comprises a handle self-vibration absorption device (16). The handle self-vibration absorption device comprises one handle self-vibration absorber. The handle self-vibration absorber is made of a second material different from the first material. The weight of the handle self-vibration absorber is less than the weight of the handle housing. The density of the handle self-vibration absorber is greater than or equal to 1 g/cm3 or is greater than the density of the handle housing. The size of the handle self-vibration absorber in the direction of the central axis is less than the size of the handle housing in the direction of the central axis, and the handle self-vibration absorber is at least partially located in the receiving cavity. The power tool has minimal vibration and is comfortable to hold. A: A master manipulator manipulation device for a robot. The master manipulator manipulation device comprises: a puncture assembly (110), the puncture assembly (110) comprising a handle housing, a puncture execution mechanism movably arranged on the handle housing, and a force feedback mechanism arranged at the bottom of the handle housing, the force feedback mechanism being connected to the puncture execution mechanism, and the force feedback mechanism applying resistance to the puncture assembly on the basis of puncture force feedback information; and a posture adjustment component (120) and a base (130). Further disclosed is a robot, comprising a puncture needle arranged at a terminal end of a mechanical arm, and the master manipulator manipulation device. The master manipulator manipulation device can control the needle insertion operation of the terminal end of the mechanical arm and feed back the needle insertion resistance at the terminal end of the mechanical arm. B: A blower (100), comprising: a motor (110); a fan (120), being driven by the motor (110) to rotate about a central axis (101); a battery pack (130), for supplying power to the motor (110); an air duct assembly (140), forming an air inlet (141) for air intake and an air outlet (142) for air outlet; and further comprising: a first handle (150), forming a first holding portion (151) for holding; and a second handle (160), forming a second holding portion (161) for holding. At least part of projection of the battery pack (130), in the radial direction of the central axis (101), on a plane (102) passing through the central axis (101) is located between the first handle (150) and the second handle (160). The blower (100) facilitates reducing the burden when a user uses the blower (100). C: Provided is a back-traveling self-propelled work machine, comprising: a main machine (12), comprising a travel assembly (121) and a drive motor (122) for driving the travel assembly (121); an operation switch (112c), connected to the drive motor (122); a handle apparatus (11), connected to the main machine (12); the handle apparatus comprises: an operation member (112), comprising a grip part for a user to grip; a connecting rod (111), connected to the main machine (12); a sensing module (14), used for sensing the pushing force applied to the handle apparatus (11) to drive the back-traveling self-propelled work machine; the sensing module (14) also comprises: a pressure sensor (141a), arranged between the operation member (112) and the connecting rod (111); a pressing member (146); when the grip part is subjected to a pushing force, the pressing member (146) applies a force along a preset linear direction to the pressure sensor (141a) so as to drive the pressure sensor (141a) to deform. D: A power tool and an operation method therefor for fast locking and releasing a working accessory. The power tool comprises a housing (2), a motor (18) disposed in the housing, a main shaft (16) driven by the motor to output rotary power, and a chuck (3) used for locking and releasing a working accessory. The chunk comprises a core body (12) connected to the main shaft, multiple claws (14) movably disposed relative to the core body, and a jacket (13) sleeved on an outer side of the core body. Driven by relative movement between the jacket and the core body, the multiple claws are folded and unfolded relative to the core body. The power tool also comprises a control apparatus. The control apparatus can operably lock a position of the jacket or the core body relative to the housing, or can control the motor to be started according to a preset rotation direction and accordingly, relative movement is generated between the jacket and the core body.

D

Please select the most similar patent number from A, B, C and D. Which number is? A palm ratchet tool comprises an upper cover (1), a lower cover (4), a ratchet (3), a pawl rocker shifter (5), and bits (2). The upper cover is provided with multiple through holes (11). The multiple bits are respectively disposed in the through holes. The pawl rocker shifter is disposed between the upper cover and the lower cover. The pawl rocker shifter comprises a left pawl (51), a right pawl (52), and a rocker (53) connected to the left pawl and the right pawl. The lower cover is connected to the bottoms of the bits. The top end of the rocker penetrates through the lower surface of the lower cover. The ratchet is disposed on the periphery of the upper cover and the lower cover. Ratchet gear teeth (3) are disposed on the inner surface of the ratchet. When the pawl rocker shifter approaches the ratchet, the left pawl or the right pawl meshes with the gear teeth under the action of the rocker. A: A double-ratchet type one-way clutch. Pawls (3) do not knock the surfaces of ratchets when the double-ratchet type one-way clutch rotates in the idling direction. The double-ratchet type one-way clutch mainly comprises: a driving ratchet (1), a driven ratchet set, a pawl set, and rolling bearings (10, 11). The pawl set comprises: a pawl base cover (5), a plurality of pawls (3), and a plurality of elastic elements (4). The driven ratchet set comprises: a driven ratchet set ratchet (2), balls (6), a ball cage (7), and a driven ratchet set supporting ring (8). When the double-ratchet type one-way clutch rotates in the idling direction, the driving ratchet (1) firstly rotates relative to the driven ratchet set ratchet (2), to make the top land of the driven ratchet set ratchet (2) and the top land of the driving ratchet (1) complementary in the axial direction; and then the driving ratchet (1) drives the driven ratchet set ratchet (2) to rotate together, so that the pawls (3) slide over the tail end of the top land of the driving ratchet (1) and then reach the top land of the driven ratchet set ratchet (2), thereby preventing the pawls (3) from knocking the driving ratchet (1). B: Disclosed is a ratchet tooth engagement device for a ratchet tool, comprising a ratchet wrench body (1), an assembling hole (11) penetrating through one end thereof; and a detent assembly (2), which is mounted in the assembling hole (11) of the ratchet wrench body, and comprises a ratchet base (21, 5), a ring gear disc (22, 6), an elastic element (7, 23), and a seal cover (24). A driving hole is provided in and penetrates through the ratchet base from the top to the bottom, a ring portion (212, 52) protrudes from the outer peripheral side of the ratchet base, and a tooth row (3, 9) is provided around either side or both sides of the ring portion (212, 52), the tooth row (3, 9) being engaged with row teeth (10) provided on the ring gear disc (22, 6) sheathed on the ratchet base. The seal cover (24) is sheathed on an end portion of the ratchet base (21, 5) and covers the opening of the assembling hole (11). The elastic element is sheathed to the end of the ratchet base provided with the ring gear disc (22, 6), and two ends of the elastic element (7, 23) are respectively elastically abutted against the seal cover (24) and the ring gear disc (22, 6), and are elastically pushed against the row teeth (10) of the ring gear disc to engage with the tooth row (3, 9) of the ring portion (212, 52). The device can generate a tooth skipping sound to let a user know the reversing case, and has the advantages of reduced whole weight, convenient assembly, and simple operation. C: A planter driven by a shaft of a walking tractor. A cam (7) with multiple embossments is sleeved on a shaft of a driving wheel shaft of the walking tractor. A ratchet wheel structure is installed on a planting wheel shaft of the planter. The ratchet wheel structure comprises an oscillating bar (2), a pawl (1), a check pawl (5), and a ratchet wheel (4) installed on the planting wheel shaft. The oscillating bar (2) is installed on the ratchet wheel (4). A return spring (3) is arranged on the oscillating bar (2). The pawl (1) is hinged on the oscillating bar (2). A driver cooperating with the embossments of the cam (7) is connected to the oscillating bar (2). The planter implements intermittent movement through cooperative use of the cam and the ratchet wheel, thereby bringing convenience to installation of a seed metering device of the planter. In addition, it is convenient for changing a plant spacing of the planter. A long-chain wheel and land wheel structure is cancelled, so that a driving manner is simple and reasonable, off-chain, stuck, and miss-seeding phenomenon and the like do not occur in a planting process, maintenance is convenient, and a fault rate is decreased, thereby improving reliability and working efficiency of the planter. D: A three-ratchet wheel one-way clutch, comprising a driving ratchet wheel (1, 5), pawls (2, 6), elastic components (3, 7), a pawl base (4, 8), a front driven ratchet (12, 52), and a rear driven ratchet wheel (15, 55). One or more pawls (2, 6) are arranged on the pawl base (4, 8), and the elastic components (3, 7) are connected to the pawls (2, 6). The driving ratchet wheel (1, 5), the front driven ratchet wheel (12, 52), and the rear driven ratchet wheel (15, 55) are all connected to the pawl base (4, 8), and are all able to rotate relative to the pawl base (4, 8). When the three-ratchet wheel one-way clutch rotates along an unrestricted direction, the pawls (2, 6) move on the tops of the teeth of the front driven ratchet wheel (12, 52) and the rear driven ratchet wheel (15, 55), and the tops of the teeth of the driving ratchet wheel (1, 5).

B

Please select the most similar patent number from A, B, C and D. Which number is? A turnover machine for overhauling bearings, comprising a rack (1). The bottom of the rack (1) is provided with wheels (2). The rack (1) is further provided with a first turnover plate (3) and a second turnover plate (4) separately. One end of the first turnover plate (3) and one end of the second turnover plate (4) are both hingedly connected to the rack (1) by means of pin shafts (5.1, 5.2). A first turnover cylinder (601) and a second turnover cylinder (6.2A) are further provided inside the rack (1). The bottom of the other end of the first turnover plate (3) is hingedly connected to an end of a piston rod in the first turnover cylinder (6.1A), and the bottom of the other end of the second turnover plate (4) is hingedly connected to an end of a piston rod in the second turnover cylinder (6.2A). The rack (1) is further provided with conveying rollers (7, 8). The back of the second turnover plate (4) is provided with a support frame (9). A clamping cylinder (10) is provided in the support frame (9). A chuck (11) is further provided in the second turnover plate (4). An end of a piston rod in the clamping cylinder (10) is fixedly connected to the back of the chuck (11), and the front of the chuck (11) is provided a claw (12) and further provided with a guide rail (18). Two sides of the back of the claw (12) are slidably connected to the guide rail (18), and the back is further provided with a lead screw (15). The middle of the back of the claw (12) is fixedly connected to a nut seat sleeved on the lead screw (15). The turnover machine has a variety of turnover angles, can meet the processing requirements of different processes of bearings, can more conveniently and stably fix the bearings, and is less likely to scratch the surfaces of the bearings. A: A tubular product lifting appliance, comprising a mounting base (1). Lifting rods (2) are fixedly provided on the periphery of the top of the mounting base; a telescopic air cylinder (3) is fixedly provided at the center of the top of the mounting base; an end part of a piston rod in the telescopic air cylinder penetrates through the mounting base to be fixedly connected to one end of a connecting rod (4), and the other end of the connecting rod is fixedly provided with a vacuum chuck (5); the vacuum chuck absorbs a tubular product (12); a first guide rail (6) is fixedly provided at the bottom of the mounting base; a first electric sliding block (7) is slidably provided in the first guide rail; the bottom of the first electric sliding block is fixedly connected to one end of a first L-shaped supporting plate (8), and the other end of the first L-shaped supporting plate is slidably connected to the other end of a second L-shaped supporting plate (10) by means of matching of a sliding groove (9) and a sliding rail (11). The tubular product lifting appliance is provided with the vacuum chuck, the first L-shaped supporting plate, the second L-shaped supporting plate, and a pressing block (16), thereby solving the problem that the conventional tubular product lifting appliance is low in safety and not easy to lift. B: A conveying device for automatic flipping of bearings. A low conveying belt (15) is provided between a pair of low conveying wheels (14); a high conveying belt (17) is provided between a pair of high conveying wheels (16); a flipping unit (20) comprises upper rotating support plates (22) rotationally provided on the end surfaces, away from each other, of a pair of center vertical plates (11); vertically-disposed clamping support plates (221) are formed at the lower end of a left end surface and the upper end of a right end surface of each upper rotating support plate (22), respectively; vertical moving bases (241) are vertically and movably provided at the ends, away from the upper rotating support plate (22), of the clamping support plates (221); bearing clamping blocks (26) are respectively provided on the end surfaces, close to each other, of a pair of vertical moving bases (241) in a front-back moving mode; an upper connecting plate (111) is formed between the upper ends of the central vertical plates (11); the upper connecting plate (111) is located on the upper side of the high conveying belt (17), and a pushing stop plate (271) is provided on a right end surface of the upper connecting plate (111) in a left-right moving mode. C: Disclosed is a multi-roller flat plate cylindrical embossing machine, comprising: a rack (1), wherein longitudinal sliding grooves (2) are symmetrically arranged at upper ends of two sides of the rack (1); two sides of a lower end of a mobile frame (3) are respectively arranged in the longitudinal sliding grooves (2) in a sliding manner by means of sliding blocks (4); a first rack (5) is arranged at an upper end of one sliding block (4); a first drive electric motor (6) is arranged in the rack (1); a first gear (8) fitting the first rack (5) is arranged on an electric motor shaft (7) of the first drive electric motor (6); first air cylinders (9) are symmetrically arranged at two sides of an upper end of the mobile frame (3); bearing blocks (11) are respectively arranged on piston rods (10) of the first air cylinders (9); two ends of a cylinder (12) are respectively arranged on the bearing blocks (11) in a rotating manner by means of spindles (13); a second air cylinder (14) is arranged on the mobile frame (3) at one side of one spindle (13); an ejector pin (16) is arranged on a piston rod (15) of the second air cylinder (14); and one spindle (13) is provided with an ejector pin hole (17) fitting the ejector pin (16). D: A pipe feeding mechanism for a paint spraying pipe labeling machine comprises a machine frame, and a bin (1), a pipe pushing mechanism (2), a pipe detection electric eye (3), a pipe clamping mechanism (4), and a rotating mechanism (6), which are disposed on the machine frame. A pipe conveying groove (9) penetrating the bin (1) and extending rightwards is provided at the bottom of the bin (1). The pipe pushing mechanism (2) comprises a push pin (14), a push pin guide seat (16), and a pipe pushing cylinder (17). The push pin (14) is slidably installed on a linear guide rail (15) via a push pin sliding seat (13), the telescopic end of the pipe pushing cylinder (17) is connected to the push pin sliding seat (13), and the pipe detection electric eye (3) is disposed on the right of the pipe conveying groove (9). The pipe clamping mechanism (4) comprises a pipe clamping head (25) and a clamping pneumatic finger (26), the pipe clamping head (25) being located on the right side of the pipe conveying groove (9). The rotating mechanism (6) comprises a rotating shaft (27), a rotating fixing seat (28), and a rotating cylinder (29). The rotating shaft (27) is installed in the rotating fixing seat (28), the rear end of the rotating shaft is connected to the clamping pneumatic finger (26), the tail of the rotating cylinder (29) is rotatably hinged to the machine frame, and the head of the rotating cylinder is hinged to the rotating shaft (27). The pipe feeding mechanism can automatically complete a one-by-one pipe feeding operation, the labor intensity of workers is reduced, and the working efficiency is high.

B

Please select the most similar patent number from A, B, C and D. Which number is? A fixing apparatus (100), comprising a base (10), at least one fixing mechanism (20), and at least one limiting mechanism (30). The base (10) comprises a base plate (11) and a fixing plate (13). Each fixing mechanism (20) comprises a fixing drive member (21), a moving member (22), and an abutting member (24); the fixing drive member (21) drives the moving member (22) to move so as to drive the abutting member (24) to abut against a workpiece (200). Each limiting mechanism (30) comprises a fixing member (31), a stopping member (33), and at least two limiting assemblies (32); each limiting assembly (32) comprises a limiting member (321), a limiting spring member (322), a snapping member (323), a snapping spring member (324), a control member (325), and a control spring member (326); the snapping member (323) comprises a push-pull part (3231) and a snapping part (3232). If the corresponding limiting member (321) is pressed to move, the snapping member (323) causes, under the action of the elastic force of the snapping spring member (324), the snapping part (3232) to be accommodated in a groove (3213) of the limiting member (321) to stop the snapping member (323) from moving, such that the snapping member (323) is accommodated in the fixing member (31). If the corresponding control member (325) is pressed to move, the push-pull part (3231) disengages from a receiving groove (3253) of the control member (325) to drive the snapping part (3232) to disengage from the groove (3213) of the limiting member (321), and the limiting member (321) moves to protrude out of the fixing plate (13) under the action of the snapping spring member (324) so as to stop the stopping member (33). A: A nozzle fixing assembly (10) and an oral irrigator. The nozzle fixing assembly (10) is used for installing a nozzle (100). The nozzle (100) is provided with a limiting groove (130). The nozzle fixing assembly (10) comprises a locking unit (200) and a supporting base (300); the locking unit (200) comprises a housing (210) and an elastic element (230), wherein the housing (210) is provided with a through slot (211) which is arranged through two opposite sides of the housing (210), and wherein the elastic element (230) is connected to the housing (210); and the supporting base (300) comprises an elastic fastening (310) and a locking sleeve (320). The locking sleeve (320) is provided with a channel (321), a groove (322) is provided in the periphery of the locking sleeve (320), and the channel (321) is in communication with the groove (322). The nozzle (100) passes through the through slot (211) and the channel (321) and presses the elastic element (230); therefore, the limiting groove (130) is exposed in the groove (322), and the elastic fastening (310) is clamped in the limiting groove (130) and the groove (322). The nozzle (100) presses the elastic element (230) to adjust the assembling gap between the nozzle (100) and the supporting base (300), so that the limiting groove (130) is exposed in the groove (322), namely, the limiting groove (130) is aligned with the opening of the groove (322); at this moment, the elastic fastening (310) can be clamped in the limiting groove (130) and the groove (322); and therefore, the nozzle (100) and the supporting base (300) are assembled in place and stably installed. B: A lamp comprising a lamp body (100) and an elastic mounting member (200), wherein the lamp body (100) comprises a lamp main body (110) and a limiting member (120), the limiting member (120) is connected to the lamp main body (110), a limiting space (130) is defined by the limiting member (120) and the lamp main body (110), a mounting opening is provided in one end of the limiting space (130), the limiting member (120) comprises a matching notch (123), the matching notch (123) is formed by extending towards the interior of the limiting member (120) from the mounting opening, a limiting groove (111) being in communication with the limiting space (130) is concavely provided in the lamp main body (110), the elastic mounting member (200) comprises a clamping part (210) and a mounting part (220), the clamping part (210) comprises a base body (211) and an elastic fastener (212), the elastic fastener (212) is elastically connected to the base body (211), one end of the base body (211) is bent outwards and extends to form the mounting part (220), the mounting part (220) is configured to be fixed to a mounting foundation (300), the clamping part (210) extends into the limiting space (130) from the mounting opening, the mounting part (220) extends into the matching notch (123), the base body (211) is in limiting fit with the lamp body (100) in the direction perpendicular to the extending direction of the clamping part (210), and the elastic fastener (212) is in limiting fit with the limiting groove (111) so as to limit the clamping part (210) being separated from the limiting space (130) from the mounting opening. The lamp is low in assembly difficulty and small in radial size. C: A mounting mechanism, comprising a first part (1) and a second part (2) connected to the first part (1). The first part (1) comprises a connecting piece (11) and a limiting component (12). The limiting component (12) comprises a limiting housing (121), two grabbing arms (122) and a first return piece (123). The limiting housing (121) is provided with an opening at one end away from the connecting piece (11), and the two grabbing arms (122) are both hinged within the limiting housing (121). Each grabbing arm (122) is provided with a clamping part (1221) at one end close to the opening. The second part (2) comprises a head (21) and a connecting part (22) that extends from the head (21). The outer diameter of the connecting part (22) is smaller than that of the head (21), so that a step is formed at the joint between the head (21) and the connecting part (22). During mounting, the head (21) is operated to move from the opening to the limiting housing (121) through the space between the two clamping parts (1221), and the head (21) pushes the two clamping parts (1221) open so as to pass through, so that the first return piece (123) generates a driving force. When the head (21) passes through the clamping parts (1221), the first return piece (123) drives the two clamping parts (1221) to rotate and reset in opposite directions so as to clamp the head (21). D: A positioning device (100), comprising a support frame (10), a rotating mechanism (20), a positioning mechanism (30), and a variable spacing mechanism (40). The rotating mechanism (20) is disposed on the support frame (10) and rotates the positioning mechanism (30). The positioning mechanism (30) comprises a base plate (31), a fixed tray (32), and at least one movable tray (34). The fixed tray (32) is fixedly disposed on the base plate (31). The at least one movable tray (34) is slidably disposed on the base plate (31) in sequence and is near the fixed tray (32). The variable distance mechanism (40) comprises a linear driving member (41), a sliding plate (43), and at least one connecting member (42). The linear driving member (41) is fixedly disposed on the base plate (31). The sliding plate (43) is disposed on the linear driving member (41) and is connected to the movable tray (34). The at least one connecting member (42) slidably connects the fixed tray (32) and all of the movable trays (34) in sequence. The linear driving member (41) moves the sliding plate (43) to move the movable tray (34) thus adjusting spacing between products.

D

Please select the most similar patent number from A, B, C and D. Which number is? A workbench for fitness equipment accessory machining, the workbench comprising a base (1) and a housing (2). The bottom of the base (1) is fixed to the housing (2). A workbench body (16) is arranged in the housing (2). The bottom surface of the workbench body (16) is fixedly mounted on a lifting seat (6). A height adjusting assembly for adjusting the height of the lifting seat (6) is arranged on the lifting seat (6). Two filtering cavities (8) are symmetrically provided in the housing (2). Filtering assemblies (22) for filtering air are symmetrically arranged in each of the filtering cavities (8). Two sides of the workbench body (16) are connected to inner walls of the housing (2) in a sliding manner. Dust is filtered by means of the filtering assemblies (22), such that cleanliness in the housing (2) is guaranteed, and the problem that an existing device cannot collect and treat dust generated during an accessory machining process such that dust accumulates on a machining table is solved; and by means of the arrangement of the height adjusting assembly, the height of the workbench body (16) is adjusted, thereby facilitating machining of accessories of different types, and improving the machining efficiency. A: A workbench for assembling a small mechanical apparatus. The workbench comprises an assembling table (1), a lifting mechanism and a support base (2). The assembling table (1) is mounted at the top end of the support base (2); a tray (11) is fixedly connected to the middle of the bottom end of the assembling table (1); and the lifting mechanism is mounted between the assembling table (1) and the support base (2) and used for adjusting the distance between the assembling table (1) and the support base (2). The lifting mechanism comprises a servo motor (53), a weighing support (3) and a lifting column (5), wherein the weighing support (3) is fixedly connected to the top end of the support base (2); the servo motor (53) is mounted in the weighing support (3); the top end of the servo motor (53) is rotationally connected to a threaded column (52); the bottom end of the tray (11) is fixedly connected to the lifting column (5); a bottom surface of the lifting column (5) is provided with a mounting cavity (55) extending upwards; the top end of the threaded column (52) extends into the mounting cavity (55); the threaded column (52) is screwed to the mounting cavity (55) by means of a thread; and a limiting sleeve (51) is sleeved on the outer side of the lifting column (5). By means of a servo motor being additionally arranged in a weighing support and by means of providing a simple thread lifting mechanism, the height of an assembling table can be adjusted; and the workbench is simple and convenient to maintain, and the reducing of the maintenance cost of the workbench is facilitated. B: A machining quality testing apparatus for mechanical parts, pertaining to the technical field of machining, and solving the problem in which existing devices lack protection for a testing apparatus and cause the testing apparatus to be exposed. The machining quality testing apparatus for mechanical parts comprises a support frame (1) and a base (2). A lower portion of the support frame (1) is fixed to the base (2), and an accommodation cavity (3) is provided within the base (2). An accommodation assembly is provided within the accommodation cavity (3). A barrier plate (4) is provided above the base (2). The base (2) and the barrier plate (4) are fixedly connected by a bolt. The accommodation assembly comprises a drive assembly, a testing apparatus installation base (14), and a vertically movable assembly (15). The drive assembly and the vertically movable assembly (15) are fixedly connected. The invention achieves protection of the testing apparatus and enables convenient accommodation and retrieval thereof, thereby preventing damage to the testing apparatus, and accordingly improving testing accuracy. In addition, the invention achieves retaining and position limiting of mechanical parts, thereby preventing mechanical parts from loosening or falling off during a testing process, and improving testing efficiency. C: A positioning fixture for machining of a housing of a sewing machine head, comprising a base (1) and an upright column (11); the upright column (11) is arranged above the base (1), a mounting base (13) is fixedly mounted in the middle of the upright column (11), clamping assemblies (14) for clamping a housing are symmetrically arranged on two sides of the mounting base (13), the mounting base (13) is fixedly connected to the clamping assemblies (14), and a position adjustment assembly for adjusting the height of the upright column (11) is arranged between the upright column (11) and the base (1). The positioning fixture achieves the adjustment of the height of the clamping assemblies by means of the provision of the position adjustment assembly, facilitating clamping of housings in different environments, increasing the machining efficiency of housings, and achieving the clamping and limiting of housings of different shapes by means of the provision of a swing assembly. D: An automatic material carrying claw mechanism, relating to the technical field of material carrying mechanisms, solving the problem of being inconvenient to adjust the height of the existing mechanical claw device, and comprising a support frame (1) and a base (22). The support frame (1) is fixedly mounted on the upper part of the base (22). A horizontal transverse plate (2) is fixedly mounted at the top of the support frame (1). The support frame (1) is provided with a lifting/lowering base (7). A clipping mechanism (15) for carrying a material is mounted on the lifting/lowering base (7). A height adjustment component used for adjusting the height of the clipping mechanism is also mounted on the horizontal transverse plate (2). The mechanism is provided with the height adjustment component for adjusting the height of the clipping mechanism, which reduces the carrying difficulty of an electronic component and improves the carrying efficiency; at the same time, a limiting component is arranged for limiting the lifting/lowering base, which ensures the accuracy of electronic component carrying and prevents the electronic component from falling off.

A

Please select the most similar patent number from A, B, C and D. Which number is? A mechanical device for obtaining a sheet-plate-shaped article, comprising a base (600) on which a suction cup (640), a driver (610), a first clamping jaw (620-1) and a second clamping jaw (620-2) are mounted. The first clamping jaw (620-1) comprises a first pivoting end (631-1) capable of pivoting along a first pivoting shaft (661-1) and a first clamping piece serving as a first free end (630-1), the second clamping jaw (620-2) comprises a second pivoting end (631-2) capable of pivoting along a second pivoting shaft (661-2) and a second clamping piece serving as a second free end (630-2), and the first clamping piece and the second clamping piece are of a long-strip-shaped flat plate structure and extend in the directions parallel to the pivoting shafts. The mechanical device for obtaining a sheet-plate-shaped article can lift sheet-plate-shaped articles by means of the clamping jaws, reduces damage to the articles resulted from sorting and the risk of falling off of the articles, and guarantees smooth running of sorting. A: Disclosed are a hemostatic clip and an auxiliary system. The hemostatic clip comprises a first clip piece (110), a second clip piece (120), a tightening tube (140), a middle clip piece (150), a middle shaft assembly (160), a traction assembly (170), a control handle (180) and at least two separation members (190), wherein the traction assembly (170) is respectively connected to the control handle (180) and the middle shaft assembly (160); the middle shaft assembly (160) is connected to the tightening tube (140); the proximal end of the first clip piece (110) and the proximal end of the second clip piece (120) are connected to the traction assembly (170); the proximal end of the middle clip piece (150) penetrates the tightening tube (140) to be fixedly connected to the middle shaft assembly (160); the first clip piece (110) and the second clip piece (120) are arranged on two sides of the middle clip piece (150); the first clip piece (110) and the middle clip piece (150) form a first clip body; the second clip piece (120) and the middle clip piece (150) form a second clip body; the control handle (180) is used for opening or closing the first clip body and the second clip body corresponding to the first clip piece (110) and/or the second clip piece (120); and the separation members (190) are arranged in a tube cavity of the tightening tube (140), and are located between the first clip piece (110) and the middle clip piece (150) and between the second clip piece (120) and the middle clip piece (150), such that the instrument fault risk caused by the interference of the first clip piece (110), the second clip piece (120) and the middle clip piece (150) is reduced. B: A powerful plier comprising a first jaw (1), a second jaw (2), a first handle (3), and a second handle (4). The first jaw (1) is mounted onto the first handle (3). The second jaw (2) is pivotally mounted onto the first handle (3) and is pivotally mounted onto the second handle (4) via a first connecting point (21). The powerful plier also comprises a single connecting rod (11), a sliding mechanism (10), and a lock mechanism (8). One extremity of the connecting rod (11) is pivotally mounted onto the second handle (4) via a second connecting point (16), while the other extremity is pivotally mounted onto the sliding mechanism (10) via a third connecting point (17). The sliding mechanism (10) and the lock mechanism (8) are slidably mounted onto the first handle (3). The single connecting rod (11) increases the supporting strength of the connecting rod. Arrangement of multiple lock pieces (81) increases the efficiency of locking. Also, processing costs for the lock pieces are reduced. The lock mechanism (8) and the sliding mechanism (10) run through a guide rod (6), thus simplifying an assembly process. C: A sorting system for sheet or plate-like articles, comprising: a supply device (110) capable of receiving and transmitting a plurality of sheet or plate-like articles overlapped together and having different orientations; an image processing device (120) capable of receiving a plurality of sheet or plate-like articles and obtaining grade information of a sheet or target plate-like article according to image information of the target sheet or plate-like article among the plurality of sheet or plate-like articles; an encoder capable of calculating motion information of the target sheet or plate-like article; and a sorting device (130) capable of sorting the target sheet or plate-like article according to the grade information and the motion information of the target sheet or plate-like article. The system for sorting sheet or plate-like articles achieves automation of sheet or plate-like article sorting, and increases the sorting efficiency. D: A mechanical gripping jaw and a gripping bar mechanism, comprising a mounting seat (100); a drive assembly (200), which is provided on the mounting seat, and is provided with a transmission member (210); a first gripping assembly (300), which is rotatably provided on the mounting seat, is in drive connection with the transmission member, and is provided with a first gripping head (310); and a second gripping assembly (400), which is rotatably provided on the mounting seat, is in drive connection with the transmission member, and is provided with a second gripping head (410); when the first gripping head and the second gripping head are able to rotate relative to and approach each other, the first gripping head cooperating with the second gripping head to form a gripping station. As the forces applied to the product are not opposite radial gripping forces applied by a traditional mechanical gripping arm, the gripping forces applied to the product are relatively small and also smoother, so that the invention can realize secure gripping of fragile products, and eliminate potential risk of said fragile products being broken, and the connection structure above is simple and is secure for operation, and the costs for manufacture, usage and maintenance are low.

D

Please select the most similar patent number from A, B, C and D. Which number is? A hydraulically powered joint for a robot, comprising a hydraulic plug-in rotary direct drive valve (1) and a blade swing cylinder (2), a valve body mounting cavity (22) being prefabricated at one end of a center part of a central rotary shaft (21) of the blade swing cylinder (2), the shape of the valve body mounting cavity (22) being formed according to the shape of an insertion portion of the hydraulic plug-in rotary direct drive valve (1), the hydraulic plug-in rotary direct drive valve (1) being fitted in the valve body mounting cavity (22) in an inserted manner, and a drive motor (11) of the hydraulic plug-in rotary direct drive valve (1) being exposed out of the central rotary shaft (21). The hydraulically powered joint for a robot can satisfy the current robot development needs, and also can broaden the application range of the robot. A: A driving joint (1). The driving joint (1) comprises a motor (10), a planetary gear reducer (20) integrated in the motor (10), and encoders (30, 40), a brake (50), driving cards (60, 70) and control cards (80, 90) integrated on the motor (10). The planetary gear reducer (20) is mounted on a motor shaft (101) of the motor (10). The motor shaft (101) comprises an input rear end (106) and an output front end (107). The input rear end (106) and the output front end (107) of the motor shaft (101) are each provided with an encoder (30, 40). The brake (50) is mounted on the input rear end (106) of the motor shaft (101). An input end face (11) and an output end face (12) of the driving joint (1) are each provided with a driving card (60, 70) and a control card (80, 90). By applying the planetary gear reducer to driving joint transmission, and by means of the integrated design of a high-performance torque motor, a servo driving controller, a brake, a torque sensor and other components, the driving joint has the advantages of high efficiency, high load to dead weight ratio, support for reverse driving, high response speed, compliant force control, and real-time bus communication. Also provided is a robot. B: Disclosed is an adjustable rotation damper, comprising a body (1), a spindle (11) embedded in the body (1) to rotate, a first piston (2) sleeved on the periphery of the spindle (11) and driving the spindle (11) to move in the axial direction of the spindle (11), and a second piston (21) sleeved on the periphery of the first piston (2) and elastically connected to the body (1), wherein the first piston (2) separates a pressure chamber (3) from an oil storage chamber (31), and the second piston (21) is arranged in a buffer chamber (32) that is in communication with the oil storage chamber (31). The adjustable rotation damper further comprises adjusting mechanisms (4) symmetrically arranged on two sides of the spindle (11), wherein hydraulic oil in the pressure chamber (3) flows towards an adjusting mechanism (a) on one side and to the oil storage chamber (31) to form a flow channel, and the hydraulic oil in the oil storage chamber (31) flows towards an adjusting mechanism (b) on the other side and to the pressure chamber (3) to form another flow channel. The adjustable rotation damper is applied to the ankle part of an artificial limb, and can be properly adjusted according to the motion state and a change in stride of a user. C: A hybrid rotary guiding device, comprising: a rotating shaft that rotationally drives a tool head (B), the rotating shaft including an upper shaft part (1), a lower shaft part (2) and a steerable part (3); the upper shaft part (1) and the lower shaft part (2) have a spacing distance in the direction of the rotating shaft, and the upper shaft part (1) and the lower shaft part (2) are connected by means of the steerable part in a steerable manner (3); at least three first hydraulic mechanisms installed on the upper shaft part (1); and at least three second hydraulic mechanisms installed on the lower shaft part (2); the second hydraulic mechanisms are adapted to drive a push member (9) to push against a borehole wall to guide the tool head (B); the first hydraulic mechanisms and the second hydraulic mechanisms are connected such that the first hydraulic mechanisms can drive the second hydraulic mechanisms to drive the push member (9). The guiding device combines the advantages of the directional guiding and the pushing guiding, thus, the influence of formation properties on a build-up rate is eliminated to a great extent, a higher build-up rate can be provided, and the demand for energy consumption is greatly reduced. D: Disclosed is a threaded insertion type rotary direct-drive electro-hydraulic servo valve with a harmonic speed reducer. A direct-current brushless servo motor (1) and a harmonic speed reducer (3) are used as an electromechanical conversion part of the threaded insertion type rotary direct-drive electro-hydraulic servo valve, so that the requirement for the starting torque of the servo motor is reduced, the size of the conversion part is reduced, and the stability of the servo valve at the zero position is guaranteed. The servo valve comprises the direct-current brushless servo motor (1), a valve body assembly (2) and the harmonic speed reducer (3), wherein the valve body assembly (2) comprises a valve core (4), a valve sleeve (5), an upper end cover assembly (6) and a lower end cover assembly (7); an output shaft (33) of the direct-current brushless servo motor (1) is fixedly connected to an input shaft (31) of the harmonic speed reducer, and an output shaft (32) of the harmonic speed reducer is connected to an outwardly-protruding part of a central shaft (41) of the valve core (4); and an outer thread (61) is provided on an outer circumferential face of the upper end cover assembly (6), and the outer thread is used for installation and connection with an integrated valve block.

A

Please select the most similar patent number from A, B, C and D. Which number is? A robot natural control method based on an electromyographic signal and an error electroencephalographic potential. The method mainly comprises the following steps: an experimenter executing four natural actions according to a prompt; collecting an electromyographic signal and IMU data, performing pre-processing, feature extraction and classifier classification on the data, and controlling, according to a classification result, a UR5 mechanical arm such that same executes a corresponding action on a target; and triggering and starting the acquisition of an electroencephalographic signal while controlling the UR5 mechanical arm, performing pre-processing, feature extraction and classifier classification on data, detecting whether an error potential is generated, if an error potential is generated, stopping the current action of the UR5 mechanical arm, otherwise, no interference being carried out. Compared with a traditional electromyographic signal control method, in the present method, electromyographic identification of a natural action is provided, an electromyographic signal and an IMU signal are also fused for data processing and classification identification, and an error correction mechanism during a robot control process is then improved by means of the identification of an error electroencephalographic potential, thereby improving the control efficiency and accuracy of a robot. A: The present application provides a wearable device-based mobile robot control system and a control method. The flow of a first control method comprises: a pose of an operator's gesture — a pose of a virtual gesture model — an end pose of a virtual robotic arm ― an end pose of a multi-degree-of-freedom robotic arm; by establishing the driving relation between the pose of an operator's gesture and the end pose of a multi-degree-of-freedom robotic arm, continuous control of the end pose of the multi-degree-of-freedom robotic arm is achieved. In a second method, during control, different hands of an operator are used for controlling different action parts of a slave robot, and separate control by the left and right hands enables the slave robot to more accurately execute a command action. In a third method, the configuration of a connection hand form enables an operator not to depend on a physical controller. Compared with discrete control of robot actions implemented only by using a gesture type, the present application implements incremental continuous accurate control of the end position of a detection system. B: A CNN-LSTM deep learning model-based driver fatigue identification method comprising the following steps: acquiring EEG signals from a subject under test during a driving simulation; issuing an operation instruction randomly during the driving simulation, and dividing, according to a response time of the test subject for completing the operation instruction, the EEG signals into fatigue data and non-fatigue data; performing band-pass filtering and mean removal preprocessing on the EEG signals, and extracting N minutes of the required fatigue EEG signal data and non-fatigue EEG signal data ; performing independent component analysis on the EEG signal data so as to remove interference signals therefrom; establishing a CNN-LSTM model, and configuring a network parameter of the CNN-LSTM model; inputting the interference-free EEG signal data into a CNN network and performing feature extraction; and reconstructing feature extraction data, and inputting the same into an LSTM network and performing classification. Experiment results indicate an improved accuracy of 96.3 ± 3.1% (grand mean ± population standard deviation). C: A natural action electroencephalographic recognition method based on source location and a brain network. The method comprises: (1) performing multi-channel electroencephalographic measurement on a natural action; (2) pre-processing a collected EEG signal, and extracting MRCP, a θ wave, an α wave, a β wave and a γ wave; (3) determining a lead field matrix of the signal, solving an initial value solution of a source by using an L1 regularized constraint, and performing iterative solving by using a successive overrelaxation method, so as to obtain a source location result; (4) taking sources as nodes, and calculating a PLV between each pair of sources time point by time point by using a short-time sliding window, so as to construct a brain network; and (5) calculating a network adjacency matrix and five brain network indexes time point by time point, sending these features to a classifier for training and testing, and performing a statistical test on the brain network indexes. By means of the method, a traditional source location method is improved by means of combining a T-wMNE algorithm with a successive overrelaxation method, and a brain network is constructed by means of taking sources as nodes, thereby facilitating the improvement of the electroencephalographic decoding precision of a natural action and the revealing of a nerve operation mechanism of a human body. D: A motor imagery electroencephalogram signal processing method, a device, and a storage medium. The method comprises: inputting a source MI electroencephalogram signal of a source domain and a target MI electroencephalogram signal of a target domain into an initial feature extraction model separately, and obtaining a first source MI feature used to represent the source MI electroencephalogram signal and a first target MI feature used to represent the target MI electroencephalogram signal (S202); inputting the first source MI feature into an initial classification model, and obtaining a first classification result output by the initial classification model, wherein the first classification result is used to represent a desired execution action of the source MI electroencephalogram signal (S204); and if a first known action corresponding to the source MI electroencephalogram signal is inconsistent with the desired execution action of the source MI electroencephalogram signal as represented by the first classification result, or if a similarity level between a feature distribution of the first source MI feature and a feature distribution of the first target MI feature is less than a first pre-determined threshold, adjusting a model parameter of the initial feature extraction model and/or a model parameter of the initial classification model, and obtaining a target feature extraction model and a target classification model (S206).

A

Please select the most similar patent number from A, B, C and D. Which number is? A shredding-slicing device having random combinations of shredder blades and slicer blades and capable of continuous thickness adjustment comprises a base (1) which is provided with a slice thickness adjusting sheet (2), a slice thickness adjusting screw (3), shredder blades (4), and slicer blades (5). The slice thickness adjusting screw (3) is screwed to the slice thickness adjusting sheet (2), and the slice thickness adjusting sheet (2) can be finely adjusted by screwing the slice thickness adjusting screw (3). A slot I (6) for inserting a slicer blade (5) is provided on the base (1), and a slot II (7) for inserting a shredder blade (4) is provided on the slice thickness adjusting sheet (2). The device has a simple and reliable structure, and by providing slots where a slicer blade (5) and a shredder blade (4) can be inserted in or drawn out, blades can be replaced quickly, so that much more patterns can be cut and it is much easier for a consumer to use the device. The device is further provided with a thickness adjusting screw (3), and by screwing the thickness adjusting screw (3), the thickness of a vegetable slice can be controlled. The mechanism is easy to operate and has abundant functions, the complexity of blade machining is reduced, and the manufacturing costs are reduced. A: Provided is a study desk that is adjustable according to a child's growth. The desk comprises a table top (1), an adjusting leg (2), an adjusting sleeve (3), an anti-slip foot (4), an adjusting hole (5) and an adjusting bolt (6), wherein an adjustable placement plate (9) is arranged above the table top (1), and the adjustable placement plate (9) is supported on the table top (1) through a support rod (17). The adjustable placement plate (9) comprises a horizontal plate (11) in a horizontal direction and an adjusting plate (10) rotatably connected through a hinge (12), wherein a fixed support plate (13) of a strip-shaped structure is fixed to an end, facing the horizontal plate (11), of a lower side face of the adjusting plate (10); the fixed support plate (13) extends towards the outer side of the adjusting plate (10), and an extension length of the fixed support plate is the thickness of the horizontal plate (11); and the lower side of the horizontal plate (11) is provided with a horizontal sliding groove (15) perpendicular to the fixed support plate (13), and a horizontal movable support plate (14) is slidably connected in the sliding groove (15). B: An automatically controlled, adjustable-angle apparatus for animal brain for experimentation, comprising a base (1), left and right side plates (2) being arranged on the left and right sides of the base (1). An angle adjustment bottom plate (3) is arranged on the base (1) and between the left and right side plates (2), the upper surface of the angle adjustment bottom plate (3) taking the form of an inclined surface at a compensatory angle required for a brain tissue sample section, one end of the angle adjustment bottom plate (3) being movably connected to the base (1) by means of a linking joint, and the other end of the angle adjustment plate (3) being a free end. A forward- and backward-moving wedge-shaped supporting block (4) is arranged below the free end, a plurality of pairs of blade motion guide slots (5) that guide blades to move vertically are arranged in the left and right side plates (2), and blades for cutting a brain tissue sample are installed in the blade motion guide slots (5). The wedge-shaped support block (4) is fixedly connected to a ball screw nut (6) on one side, the ball screw nut (6) is mated with a ball screw (7), one end of the ball screw (7) is connected to an electric driving mechanism (8), and an angle measurement apparatus (9) for measuring the angle of the adjustable-angle bottom plate (3) is installed on the left and right side plates (2). Angle adjustment is implemented by means of an automatic control mechanism, and adjustment is convenient and accurate. C: A food cutter, comprising a base (1), a support platform (2), a rotational moving assembly (3), a cutting mechanism (4), and a driving mechanism (5). The cutting mechanism (4) comprises a bracket (41) and blades provided on the bracket (41), the blades comprising a slicing blade (42) and a julienning blade working in concert with the slicing blade (42) for julienning; the julienning blade comprises a julienning blade body (43) which has at least three sides (431), at least two notches (432) for exposing the edges of the blade being provided on the surface of each side (431) at an interval, the intervals between the notches (432) on the surfaces of the sides (431) being different; and the bracket (41) is further provided with an adjustment mechanism for enabling the julienning blade to rotate along its own axis. Compared with the prior art, the food cutter overcomes the defect of frequently changing julienning blades in order to cut a product to be processed into julienne strips having different thicknesses. By enabling, using a rotational adjustment mechanism, the julienning blade to rotate along its own axis, so as to cause different sides (431) to work in concert with the slicing blade (42), julienne strips having different thicknesses can be produced. D: Provided is a pulley (10) capable of being installed in an upright manner and an inverted manner. The pulley (10) is provided with a housing (3) and wheel components. The pulley (10) can realize two installation states, an installation state in which the pulley is visible and an installation state in which the pulley is embedded, and the pulley is provided with a height adjustment mechanism capable of adjusting the height of the pulley (10) in the two installation states. In this way, it is possible to select visible pulley installation or embedded pulley installation when a single pulley is utilized. In addition, an adjustment screw (1) and an adjustment nut (2) matching each other serve as the height adjustment mechanism, such that a screwdriver is not needed when the adjustment nut (2) is rotated for adjustment, thereby preventing the frequently occurring problem of the height of the pulley being unable to be adjusted by means of a screwdriver.

C

Please select the most similar patent number from A, B, C and D. Which number is? A front-back moving-type precise four-column discharging machine, comprising a rack (1). Connecting blocks (4) are provided on the left and right sides of the rack by means of two guide columns (2) and a punching oil cylinder (3). The two connecting blocks are respectively provided with punching pressure plate moving guide rails (5). A punching pressure plate (6) is slidably provided between the two connecting blocks by means of the punching pressure plate moving guide rails. Support bosses (61) are respectively provided on two sides of the punching pressure plate. The two sides of the punching pressure plate are supported on the punching pressure plate moving guide rails by means of the support bosses. The edges of the two support bosses are respectively positioned on the axes of the two guide columns. The two connecting blocks are respectively provided with support planes (41) matching the support bosses. Oil storage tanks (7) matching the punching oil cylinder are respectively provided on two sides of the rack. A: Disclosed is a precise four-column cutting device composed of a workbench (1), a hydraulic oil tank (2), an electric motor (3), an oil cylinder (4), an upper pressing plate (5), a left trapezoid connection block (6), a right trapezoid connection block (7), a connection rod component (8), a balance shaft (9) and an oil pump (10), wherein the workbench (1) is a frame of a rectangular structure, and the frame is provided with a plurality of rib plates (11) to enhance the strength of the frame; the hydraulic oil tank (2) is arranged at the bottom of the workbench (1), and the electric motor (3) and the oil pump (10) are connected and fixed to a side vertical face of the workbench (1); and the electric motor (3) drives the oil pump (10) to drive the oil cylinder (4) to control the upward and downward movement of the upper pressing plate (5), and blanking synchronization is ensured by means of the connection rod component (8) and the balance shaft (9). The device is simple to operate and operates stably, blanking synchronization is ensured by means of the connection rod component (8) and the balance shaft (9), and four corners are balanced, thereby greatly improving the production efficiency. B: Disclosed is an environmentally friendly oil pipe arrangement device, comprising: a support bottom plate (1), and five sumps (2) arranged on the support bottom plate (1) and connected to one another. A support block (3) is arranged at each side of a lower end of each sump (2) on the support bottom plate (1), a hydraulic cylinder (4) is arranged under the two support blocks (3), and a piston rod (5) of the hydraulic cylinder (4) is connected to the support blocks (3). A screw rod (6) is fixedly arranged at each side of an upper end of each sump (2), the screw rod (6) is provided with a thread insert (7) cooperating with the screw rod, adjusting handles (8) are arranged at two sides of the thread insert (7), a semicircular support bracket (9) is arranged at an upper end of the thread insert (7), an oil discharge pipe (10) is longitudinally arranged on the semicircular support bracket (9), and several oil feed pipes (11) are transversely arranged on the oil discharge pipe (10). C: A flame laminating machine having high production efficiency comprises: a machine frame (1); a sponge roll unwinding device (2) and a plurality of sponge guiding rollers (21) arranged at an upper portion of the machine frame (1); and a middle laminating roller (3) arranged at a middle portion of the machine frame (1), and rotatably disposed in a middle bearing base (5) via a middle shaft (4). The middle bearing base (5) is fixedly disposed at the machine frame (1). An upper laminating roller (6) operating together with the middle laminating roller (3) is arranged at an upper portion of the middle laminating roller (3). The upper laminating roller (6) is rotatably disposed at an upper bearing base (8) via an upper shaft (7). The upper bearing base (8) is fixedly disposed at an upper support (9). Upper sliding tracks (10) are disposed at two sides of the machine frame (1). Two ends of the upper support (9) are slidably disposed at the upper sliding tracks (10) via upper sliding blocks (11). An upper screw cover (12) is disposed at an upper end of the upper support (9). An upper gearmotor (13) is disposed at an upper end of the machine frame (1). An upper screw (15) matching with the upper screw cover (12) is disposed at an electrical motor shaft (14) of the upper gearmotor (13). D: Disclosed is a hub die-casting mould, which comprises a lower die (2), a side die and an upper die (4) which are assembled to form a hub casting cavity. The lower die (2) is arranged on a lower template (1). The side die is formed by butt jointing four arc-shaped parts (3) which are slidingly connected to the lower template (1). The four arc-shaped parts (3) are separated into two groups which are respectively located on the left and right sides of the lower die (2). An included angle between 3º - 10º is arranged between sliding traces of two arc-shaped parts (3) of each group and the diameters in left and right directions of the lower die (2). The hub die-casting mould further comprises two connecting blocks (8) respectively arranged at the outsides of the two groups of the arc-shaped parts. Connecting holes (9) are arranged on the connecting blocks (8). The outer walls of the two arc-shaped parts (3) of each group are respectively provided with pulling hooks (7). The pulling hooks (7) are slidingly connected to the connecting holes (9). By pulling two arc-shaped parts of one group by two connecting blocks, only two oil cylinders are required to drive the two connecting blocks, and the oil cylinder energy consumption in the pouring process is reduced by half. The cavity pressure is provided by means of a die locking sleeve. The limitation of the oil cylinder specification is overcome, and the manufacturing cost of the hub is reduced.

A

Please select the most similar patent number from A, B, C and D. Which number is? A wood milling machine comprises a compression device (10), the compression device (10) comprising an upper roller (11) and a lower roller (12) rotating in opposing directions, there being a gap between the upper roller (11) and the lower roller (12). Compression of wood between the upper roller (11) and the lower roller (12) yields wood fiber (80c) without destroying the structure thereof. The performance of synthetic wood made from processed fiber is approximately equivalent to that of real wood. A system for the production of synthetic wood comprising the milling machine and a process utilizing said system requires no addition of formaldehyde to produce synthetic wood, reduces the cost thereof, and is energy efficient and environmentally friendly. A: An artificial board, comprising a surface layer, and a core layer (32). The surface layer comprises an upper surface layer (31), and a lower surface layer (33); the surface layer contains an adhesive accounting for 3-8 wt% of the surface layer, additives accounting for 0-10 wt% of the surface layer, and the balance of straw shavings; the percentage of straw shavings incapable of passing through a 12-mesh sieve in the total weight of the straw shavings of the surface layer is highest. The core layer (32) contains an adhesive accounting for 2-8 wt% of the core layer, additives accounting for 0-10 wt% of the core layer, and the balance of wooden shavings; the percentage of wooden shavings capable of passing through a 40-mesh sieve and incapable of passing through a 60-mesh sieve in the wooden shavings of the core layer is highest. According to the artificial board, crop straws are mixed with wood for manufacturing the artificial board, so that the problem of wood resource shortage in China is effectively solved; meanwhile, part of wood raw material is added, so that the raw material structure of the artificial board can be effectively improved, thereby improving the quality of the artificial board. B: Provided is a device used for compacting a softwood into a hardwood, comprising a compaction frame (2), a heating system, a pressing assembly, and a hot pressing plate (1). The pressing assembly is arranged on the upper part of the compaction frame (2), the hot pressing plate (1) is arranged on the lower part of the compaction frame (2), and the pressing assembly moves downward and applies pressure to the hot pressing plate (1). The hot pressing plate (1) is a thermally conductive material, and the heating system is connected to the hot pressing plate (1) and transfers heat to same. The hot pressing plate (1) comprises a plate body (10) and a press board (11). A rectangular groove (12) used for placing wood is arranged on the upper surface of the plate body (10), and the side wall of the groove (12) is provided with a tube hole (15) used for removing cooling water. The press board (11) is arranged above the plate body (10), and the press board (11) can move vertically by means of a sliding mechanism arranged on the compaction frame (2); during use, the press board (11) presses downward from the plate body (10) and engages, such that the groove (12) forms a sealed space. The device has a simple structure, is low-cost, has good compaction performance, and is highly efficient to produce; the compacted wood material is robust, high-strength, and highly resistant to wear, and has a high endurance. C: Disclosed is a method for producing a density distribution-controllable compressed and densified solid wood panel, comprising: adjusting the water content of each layer in the thickness direction of a solid wood panel to form a dry area and a wet area in the thickness direction of the interior of the solid wood panel, wherein a yield stress difference between the dry area and the wet area is 0.2 MPa or more; adjusting the position distribution of the dry area and the wet area; and then performing compression using a hot press to form a high-density compressed layer in the wet area of the solid wood panel, so as to obtain a density distribution-controllable compressed and densified solid wood panel. The present invention can perform precise compression on a solid wood panel, such that the position distribution of a densified layer and an uncompressed layer of the wood panel is precise and controllable. In addition, the present invention features excellent mechanical properties and size stability, thereby further improving the quality of a compressed wood panel. D: A wood strip cutter comprises an upper combing roller (1) and a lower combing roller (2). The upper combing roller comprises an upper rotating shaft (5) and an upper cutter (8) disposed on the upper rotating shaft. The lower combing roller comprises a lower rotating shaft (6) and a lower cutter (9) disposed on the lower rotating shaft. The upper cutter and the lower cutter are respectively a concave cutter and convex cutter respectively formed by multiple concave blades and multiple convex blades, the concave blades of the upper cutter and the convex blades of the lower cutter being correspondingly meshed with each other. The cutters having multiple meshed concave and convex blades distributed in intervals enable continuous cutting of wood sheets and other plant straws into wood strips, guarantees production continuity, and enhances cutter durability. Additionally, the cutters can be replaced in a timely manner in case of local abrasions or other damages. Different combinations can produce wood strips of different widths according to needs, thereby enabling versatility and durability. The invention is suitable for production, and effectively guarantees the continuity and uniformity of the wood strip making and paving of wood wool structural boards.

D

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed is a numerically controlled veneer lathe without a chucking shaft, the veneer lathe comprising a machine base (1), a veneer cutting knife device (2), a single-roller device (3), a double-roller device (4) and a PLC variable-frequency control system (5), wherein a plate pressure scale device (6) is arranged between the veneer cutting knife device (2) and the single-roller device (3); a fixing frame (7) is arranged at an upper end of the machine base (1) at two ends of the veneer cutting knife device (2); the fixing frame (7) is provided with a knife rest body rotating sleeve, a beveled track and a single-roller feed transmission device; an inner side of the fixing frame (7) is provided with a pressure scale slideway (11); a front portion of the veneer cutting knife device (2) is connected to the knife rest body rotating sleeve (12), and a rear portion of the veneer cutting knife device (2) is hinged to a power transmission shaft (13); two ends of the single-roller device (3) are respectively connected to the beveled track (17); and a single-roller support (16) is connected to the single-roller feed transmission device. A: A rotary cutting machine using automatic stepless shifting of a cam to change rotary cutting veneer thickness. A double-row roller assembly, a double-row roller feeding assembly, and a cutter body base (5) are installed on a rack. The double-row roller feeding assembly is used for driving the double-row roller assembly to move towards or away from the cutter body base (5). A support arm (8) is hinged by means of a support shaft (7) to the cutter body base (5) at an end near the double-row roller assembly. A cam assembly is provided on the cutter body base (5) at an end away from the double-row roller assembly. The cam assembly drives the support arm (8) to rotate. A single-row roller press assembly is provided on the support arm (8). A locking adjustment assembly adjusts the position of the single-row roller press assembly on the support arm (8). A rotary cutter (6) is mounted on the upper portion of the end of the cutter body base (5) near the double-row roller assembly. The double-row roller assembly, the double-row roller feeding assembly, the single-row roller press assembly and the cam assembly are all connected to a controller. The present device achieves intelligent, precise, and automatic change of any rotary cutting thickness, and the cutter height and cutter gap are locked by one-time benchmark locking, thereby saving labor and time. B: A turning center feed transmission device, mainly composed of a ball screw a (1), a brake pedal (2), a cutter frame (3), a carriage (4), a synchronous toothed belt a (5), an AC servo motor a (6), a synchronous toothed belt b (7), an AC servo motor b (8) and a ball screw b (9); the carriage (4) being provided on the lower rear side of the brake pedal (2), the brake pedal (2) being provided with the ball screw a (1), the cutter frame (3) being provided on the left side of the brake pedal (2), the AC servo motor a (6) being provided on the upper right side of the brake pedal (2), the ball screw a (1) and the AC servo motor a (6) being connected by means of the synchronous toothed belt a (5), the ball screw b (9) being connected to the lower portion of the brake pedal (2), the AC servo motor b (8) being provided on the lower left side of the ball screw b (9), and the AC servo motor b (8) and the ball screw b (9) being connected by means of the synchronous toothed belt b (7). Said transmission device has the advantages of high precision, efficiency, practicability, simplified mechanical structure, being easy to manufacture, relatively low cost, being easy to operate and user-friendly, and good manufacturability. C: An oil pumping machine with a gear reciprocating on a rack comprises a machine seat (1), a machine body (2), overhead traveling cranes (3, 4), a steel wire rope (5), a motor (6), a speed reducer (8), a gear (9), and a rack (11). A rack seat (12) is fixed on an inner side of a front portion of the machine body (2). The gear rack (11) is fixed on the gear seat (12). Semicircle rails (13) are arranged at an upper portion and a lower portion of the rack seat (12), and a middle rail is an interval rail (14). A running rail for a reciprocating device (15) is arranged at two sides of an inner side of the machine body (2). Horizontal strengthening wheels (17) and longitudinal strengthening wheels (18) are mounted at four corners of the reciprocating device (15) and are connected to a pendulous device (16) through swing rings (20). The speed reducer (8) is mounted at a bottom portion of the pendulous device (16). The motor (6) and an angle transmission case (7) are mounted at a two-layer platform of the pendulous device (16). Chain wheels are mounted on shafts of the angle transmission case (7) and the speed reducer (8). A cable box (22) is mounted at a rear portion in the machine body (2). A cable door (23) is arranged in the middle of the cable box (22). The overhead traveling cranes (3, 4) are mounted at an upper portion of the machine body (2). The steel wire rope (5) is connected to a weight box (24) through the rear portion of the overhead traveling cranes (3, 4). The weight box (24) is arranged outside the machine body (2). The present invention is novel in structure, reliable in running, and capable of reducing the cost of the equipment. D: A feed transmission device for a turning center, mainly consisting of a ball screw a (1), a brake pedal (2), a knife rest (3), a carriage (4), a synchronous cog belt a (5), an AC servo motor a (6), a synchronous cog belt b (7), an AC servo motor b (8), and a ball screw b (9). The carriage (4) is disposed at the rear underside of the brake pedal (2); the ball screw a (1) is disposed on the brake pedal (2); the knife rest (3) is disposed at the left side of the brake pedal (2); the AC servo motor a (6) is disposed above the right side of the brake pedal (2); the ball screw a (1) and the AC servo motor a (6) are connected by means of the synchronous cog belt a (5); the ball screw b (9) is connected under the brake pedal (2); the AC servo motor b (8) is disposed at the left underside of the ball screw b (9); and the AC servo motor b (8) is connected to the ball screw b (9) by means of the synchronous cog belt b (7). The transmission device has the advantages of precision, high efficiency, practical use, greatly simplified mechanical structure, more easy manufacturing and relatively low cost, and of being easy in operation, man-beneficial, and good in processing manufacturability.

A

Please select the most similar patent number from A, B, C and D. Which number is? The present invention relates to the field of polyurethane production apparatus. Disclosed is a polyurethane foaming apparatus, comprising an inner barrel, an outer barrel, a material transportation device, an inner barrel stirring device, an outer barrel stirring device, a first motor, a second motor, and a controller. The inner barrel is disposed on the material transportation device. An inner cavity of the inner barrel is communicated with the material transportation device. The material transportation device is disposed in the outer barrel. A discharging device is disposed on the outer barrel. The inner barrel stirring device comprises a first rotating shaft and a first stirring blade. The outer barrel stirring device comprises a second rotating shaft and a second stirring blade. The material transportation device comprises a material transportation pipe, a spiral rod, and a third motor. The discharging device comprises a baffle, a lifting plate, a recessed, and a hydraulic cylinder. The recess is fixedly disposed at the bottom of the outer barrel. The hydraulic cylinder is fixedly disposed on the inner bottom surface of the recess. An output end of the hydraulic cylinder is connected to the lifting plate. Telescopic guide columns are disposed between the lifting plate and a base. The upper surface of the lifting plate is connected to the baffle by means of upright columns. The present invention has the advantages of high material mixing uniformity, high finished product quality, convenient use, and small space occupation. A: The present invention discloses a polyurethane foaming device, which comprises a tank, a stirring device is arranged inside the tank, the tank is composed of a shell and a reaction tank arranged inside the shell, a vacuum cavity is formed between the shell and the reaction tank, a heating tube is arranged inside the cavity, both an inlet and an outlet of the heating tube extend to the outside of the tank and are connected with a heating device, the side wall of the reaction tank is provided with a temperature sensor, and the heating device is electrically connected with a temperature sensor. The present invention arranges the temperature sensor and the heating device, when raw materials are added into the tank, the temperature sensor detects the temperature in real time and controls the heating device to heat, at the same time, the stirring device is activated to ensure that the raw materials in the reaction tank are heated evenly, when it is heated to a suitable temperature, the heating is stopped, since there is a vacuum between the shell of the tank and the reaction tank, it has a good insulation effect, can ensure the foaming temperature of the raw materials well, and ensure the quality and production efficiency of the product. B: A multifunctional foliar fertilizer mixing apparatus, comprising a mixing apparatus (1) and a supporting apparatus (2). The mixing apparatus (1) comprises feeding portions (11), a reaction portion (12), and a discharging part (13); there are two feeding portions (11) which are respectively disposed on both sides of the reaction portion (12) and communicated with the reaction portion (12); the discharging portion (13) is disposed at the bottom of the reaction portion (12) and is communicated with the reaction portion (12); each feeding portion (11) comprises a feeding structure; the top of the feeding structure has an opening; a detachable sealing cover (3) is provided at the opening; the discharging portion (13) is provided with a discharging valve (14); the reaction portion (12) comprises a housing and an inner cavity; a motor (4) is provided at the top middle position of the housing; the output shaft of the motor (4) extends through the housing and has a rotating shaft (41) welded at the bottom; the outer wall of the rotating shaft (41) is provided with first mixing blades (42); a second mixing blade (43) is provided between the first mixing blades (42); a third mixing blade (44) is provided below the first mixing blades (42); a supporting rod (5) is provided on the supporting apparatus (2); a lighting device (6) and a monitoring device (7) are provided on the top of the supporting rod (5). C: Disclosed is a dual-loading type mixing and stirring device for a negative electrode material of a lithium battery, the device comprising a loading device and a mixing and stirring device. The loading device comprises a storage box (1), a first motor (4) and loading cylinders (5), wherein two loading cylinders (5) are provided and are fixedly disposed on a support plate (6) and connected to a mixing and stirring box (11); the first motor (4) is fixedly disposed on the support plate (6) and on the left sides of the loading cylinders (5); and the storage box (1) is disposed on a feeding pipe (2). The mixing and stirring device comprises the mixing and stirring box (11), a stirring box (12), a speed reduction box (17) and a second motor (18), wherein the mixing and stirring box (11) is welded onto a side part of the support plate (6); the speed reduction box (17) is fixedly disposed on a cover plate (14); the second motor (18) is fixedly disposed on the speed reduction box (17); and the stirring box (12) is disposed on a stirring shaft (13). D: A mixing and stirring kettle for manufacturing a lithium battery, comprising a base (1), a kettle body (4), and a stirring device (3). The base (1) is provided at the bottom of the kettle body (4) and consists of a bottom plate (25), a support column (26), a support block (27), a support rod (28), and a stop block (29); the base (1) is disposed on the lower part of the kettle body (4); a top cover (6) is provided on the upper part of the kettle body (4); a stirring device (3) is provided in the kettle body (4); a first conveying pipe (7) is provided on the left part of the top cover (6); a second conveying pipe (12) is provided on the right part of the top cover; a first filler bin (9) is provided on the top part of the first conveying pipe (7); a first inclined pipe (5) is provided on the bottom part of the first conveying pipe (7); a second filler bin (10) is provided on the top part of the second conveying pipe (12); a second inclined pipe (13) is provided on the bottom part of the second conveying pipe (12); the stirring device (3) consists of a stirring wheel (16), a rotary shaft (17), a driven wheel (18), a hollow pipe (19), a V belt (20), a through hole (21), a support frame (22), a motor (23), and a drive wheel (24). According to the present solution, the first inclined pipe (5) and the second inclined pipe (13) inject materials into the stirring wheel (16); and the motor (23) drives, by means of the V belt (20), the stirring wheel (16) to rotate, so that the materials can be mixed, and the mixing efficiency and quality are improved.

A

Please select the most similar patent number from A, B, C and D. Which number is? A stamping-resistant integrated hydraulic machine, comprising a base (1), a square supporting column (2), a rotary table (3), a lifting stamping device and die (5), a hydraulic oil cylinder (6), and a control panel (10) which are arranged in sequence from bottom to top. The hydraulic oil cylinder is disposed on the top of the lifting stamping device and die (5) and goes up and down along with the lifting stamping device and die. At least two guiding columns (4) are disposed in the position between the lifting stamping device and die and the base and close to the square supporting column. The square supporting column is disposed at one side of the base (1). The rotary table is driven by a rotary shaft (7) and a motor (8) to rotate above the base (1). An air rubber spring (9) is further connected between the rotary table and the base. A compression spring (14) is further sleeved in the air rubber spring. Both ends of the air rubber spring and both ends of the compression spring are respectively fixed to the bottom of the rotary table and the top of the base. The stamping-resistant integrated hydraulic machine is convenient to operate and has a good vertical lifting degree. A: A removal and cleanup apparatus for a vertical support structure, which comprises a movement mechanism (10), dust removal apparatuses (30), a hydraulic lift machine group, a self-balancing system, and an information processing platform, wherein the movement mechanism (10) comprises a base (11), a plurality of pairs of roller wheels (12) arranged on bottom parts of the base (11), and a plurality of extendable support legs (14) arranged on two sides of the base (11); the dust removal apparatuses (30) are arranged in intervals at top parts of the movement mechanism (10), and said apparatuses comprise cylindrical main bodies, clamping mechanisms, and cutting machines (60), the cylindrical main bodies comprise integrally connected dust removal covers and support platforms (31), the clamping mechanisms and the cutting machines (60) are arranged in inner cavities of the cylindrical main bodies and are fixedly connected to the support platforms (31), a vertical support structure (1) to be removed is supported by the support platforms (31) and external parts thereof are covered by the dust removal covers, the clamping mechanisms clamp the vertical support structure (1), and the cutting machines (60) cut the vertical support structure (1); the hydraulic lift machine group is arranged between the movement mechanism (10) and the the dust removal apparatuses (30), and said assembly comprises a first hydraulic lift machine (21) and a second hydraulic lift machine (22) arranged vertically and in intervals along an axis of the base (11), a bottom part of the first hydraulic lift machine (21) is fixedly connected to the base (11), a bottom part of the second hydraulic lift machine (22) articulates with the base (11), and top parts of the first hydraulic lift machine (21) and the second hydraulic lift machine (22) articulate with the support platforms (31) of the dust removal apparatuses (30); the self-balancing system comprises a pressure sensor (82) and an angle sensor (81) arranged on a support platform (31) as well as pressure regulating apparatuses (83) which are respectively connected to a hydraulic cylinder of the first hydraulic lift machine (21) and the second hydraulic lift machine (22); and the information processing platform respectively establishes a signal connection with the movement mechanism (10), the self-balancing system, and the clamping mechanisms and the cutting machines (60) of the dust removal apparatuses (30). B: A dual-purpose hydraulic machine facilitating switching gravity bearing. The dual-purpose hydraulic machine comprises an upper cross beam (4), a pressing plate mounting sliding block (6), and a top plate mounting sliding block (8). A base (9) is provided on the dual-purpose hydraulic machine facilitating switching gravity bearing; stand columns (7) are symmetrically provided on the upper portion in the base (9), the stand columns (7) are fixed to the upper portion in the base (9); the top plate mounting sliding block (8) is provided on a push shaft of a top cylinder (10) in the stand columns (7); the center of the bottom of the top plate mounting sliding block (8) is fixedly connected to the push shaft of the top cylinder (10); the upper cross beam (4) is provided at the tops of the stand columns (7), a main motor (17) is provided in the center of the top of the upper cross beam (4), and a push shaft of the main motor (17) is mounted downwards; an electromagnetic mechanism (20) is provided outside the main motor (17), downward pressing pressure of the hydraulic machine can be adjusted by switching the electromagnetic mechanism (20). C: A deep hole device for machining of an electronic lock, comprising a base (1) and a workbench (2); the workbench (2) is arranged on the base (1), moving bases (3) are symmetrically arranged at two sides of the workbench (2), and a plurality of fixing rods (4) are arranged at the side of each moving base (3) close to the workbench (2); a compression spring (5) is fixedly connected to one end of each fixing rod (4), a hinge member (6) is fixedly connected to the other end of the compression spring (5), and an anti-slip rubber base (7) is hinged to the hinge member (6); the fixing rod (4) is arranged on the moving base (3) in a penetrating manner, and a rotating rod (8) is hinged to a joint between the fixing rod and the moving base; a lifting/lowering rod (9) is arranged inside the moving base (3), a lifting/lowering device (10) is arranged at a lower position of the lifting/lowering rod (9), a dust removal tube (22) is arranged at one side above the workbench (2), and the dust removal tube (22) is in communication with a dust removal box body (23). The deep hole device improves the effect of fixing an electronic lock and prevents deviation of the electronic lock during machining, the deviation affecting the effect and efficiency of machining an inductor of the electronic lock; and the deep hole device can make adjustments according to electronic locks of different specifications, and has very good applicability. D: Disclosed is a sliding rail punching locking plate blocking point processing apparatus, comprising a sliding rail positioning tooling (2) arranged on a support member of a base (1), wherein the sliding rail positioning tooling (2) has a U-shaped press-fit support column (4); a punching mechanism comprising a guiding column (5) longitudinally arranged on the base (1) and a mounting rack (6) movably arranged on the guiding column (5) is arranged above the sliding rail positioning tooling (2); the mounting rack (6) is connected to an output end of a punching cylinder (7), and a fixing plate (8) extending longitudinally is arranged on the mounting rack (6); a gas spring (9) is arranged movably in the longitudinal direction on the fixing plate (8) ; an output end of the gas spring (9) is mounted with an n-shaped limiting bracket (11); a pair of swing arms (12) are arranged on the limiting bracket (11); upper ends of the swing arms (12) are rotatably connected to the middle of the limiting bracket (11), a press-fit head (13) is mounted on an inner side of a lower end of the swing arm (12), an outlet (14) for the press-fit head is correspondingly provided in the limiting bracket (11), one end of a connecting rod (15) is rotatably connected to an outer side of the lower end of the swing arm (12), and the other end of the connecting rod (15) is rotatably connected to the fixing plate (8); and a pressing rod (16) is longitudinally arranged on the limiting bracket (11), and the pressing rod (16) is located between the pair of swing arms (12).

B

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed are a fault identification and state monitoring system and method for a multi-channel piezoelectric 3D printing spray head. The system comprises a spray head driving circuit, a multi-channel gating circuit, a piezoelectric signal acquisition circuit and a monitoring unit. The spray head driving circuit is used for providing a driving signal to enable a piezoelectric spray head to perform spraying; the multi-channel gating circuit is used for providing a multi-channel in-turn gating signal to realize in-turn monitoring of a plurality of spray holes of the piezoelectric spray head; the piezoelectric signal acquisition circuit uses a self-sensing detection method to acquire a residual vibration signal in a runner cavity of the piezoelectric spray head; and the monitoring unit comprises a driving voltage monitoring module, a liquid viscosity monitoring module, an ink supply pressure monitoring module and a liquid drop spray speed calculation module, and is used for monitoring the working state of the piezoelectric spray head. The system and method can effectively identify the type and cause of a fault, improve monitoring accuracy and facilitate a user in taking effective measures; no external sensor is required; in-turn monitoring reduces the hardware cost; and monitoring can be performed during a working process of a spray head, and the monitoring flexibility is improved. A: A bearing status online monitoring system based on optical fiber vibration sensing, comprising: a laser generating device (1) for emitting a pulsed laser to a circulator (3); an optical scanning device (4) for time-divisionally inputting the pulsed laser coming from the circulator (3) into a plurality of vibration sensing optical cables (5), each vibration sensing optical cable (5) of the plurality of vibration sensing optical cables (5) being used for sensing the vibration of one or more bearings; scattered light signals which are transmitted from the plurality of vibration sensing optical cables (5) and carry bearing vibration information being inputted into a photodetector (8) via the optical scanning device (4) and the circulator (3), the photodetector (8) converting the scattered light signals into electric signals and transmitting the electric signals into a signal acquiring and processing module (9), the signal acquiring and processing module (9) being used for processing the electric signals and determining, according to the electric signals, the operating status of the bearings. The plurality of vibration sensing optical cables (5) is formed in parallel. The invention can reduce the length of each vibration sensing optical cable, improve the sensitivity of the monitoring system, and reduce the cost of the monitoring system. Further provided is a bearing status online monitoring method based on optical fiber vibration sensing. B: A pressure touch control display apparatus and a control method therefor. The pressure touch control display apparatus comprises a backlight module (10), a piezoelectric component (20) and a monitoring circuit, wherein the piezoelectric component (20) is arranged on a reflection sheet (12) of the backlight module (10), and the piezoelectric component (20) is deformed under the action of a pressure and generates an electrical signal corresponding to the pressure; and the monitoring circuit is electrically connected to the piezoelectric component (20), and the monitoring circuit is used for monitoring the electrical signal generated by the piezoelectric component (20). In the pressure touch control display apparatus, it is not necessary to pre-apply a reference electrical signal when the piezoelectric component (20) is working, and thus during working the piezoelectric component (20) is not interfered with by the other electrical signals in the pressure touch control display apparatus and external electrical signals, such that the pressure touch control display apparatus has a relatively high anti-interference capability, and the sensitivity and accuracy of the pressure touch control display apparatus are improved. C: A status monitoring and fault diagnosis system for concrete pumping equipment, comprising a boom sensor assembly (210) installed on the boom for monitoring the operation status of the boom and acquiring a signal, a chassis sensor assembly (220) installed on a chassis (101) for monitoring the operation status of the chassis (101) and acquiring a signal, a hydraulic system sensor assembly (230) installed on a hydraulic system for monitoring the operation status of the hydraulic system and acquiring a signal, a status monitoring unit (310) for analyzing and processing the signals acquired by each sensor assembly so as to monitor the condition of the concrete pumping equipment on line, and a fault diagnosis unit (320) connected with the status monitoring unit (310) for predicting and diagnosing the fault of the concrete pumping equipment. The status monitoring and fault diagnosis system for concrete pumping equipment can comprehensively monitor the operation status and diagnose the fault of the boom, the chassis and the hydraulic system, thus improving the overall performance of the concrete pumping equipment. D: Disclosed are an ink-jet control circuit for a 3D printing device, and a 3D printing device. The ink-jet control circuit comprises a positioning module, a control module, a row counting module, a storage module, and a data carrying module, wherein the positioning module is used for acquiring position data of a nozzle; the control module is used for generating a row synchronization signal and an ink-jet enabling signal according to the position data of the nozzle; the row counting module is used for generating a row counting value according to the row synchronization signal and the ink-jet enabling signal; the storage module is used for storing printing data; and the data carrying module is used for generating non-printing data, and is used for sending the printing data or the non-printing data to the nozzle according to the row counting value, so as to control the nozzle to jet ink droplets. The control module of the present application only needs to process the printing data rather than the non-printing data, such that the amount of data processed by the control module is effectively reduced, reducing the load of the control module and thus improving data processing efficiency of the control module.

D

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed are an ultraviolet lamp disinfection water purification reactor and a fabrication method therefor, the reactor comprising a reactor cavity, which is provided with a water inlet and a water outlet; an ultraviolet disinfection lamp is disposed within the reactor cavity; a rectifying device is disposed within the reactor cavity, and rectifying through holes are distributed on the rectifying device. By using a design in which a rectifying device cooperates with a ultraviolet disinfection lamp, water flow has a rectifying effect after passing through rectifying through holes of the rectifying device, such that turbulence or eddy currents may be effectively reduced, and a better purification and disinfection effect can be achieved by means of ultraviolet disinfection. A: Provided is a disposable bioreactor comprising a reactor chamber and a connected pipe. The connected pipe is arranged on the top of the reactor chamber. The reactor chamber is composed of more than two pieces of chamber walls connected via fusion or adhesion, and comprises an intersection part, and at least one hollow arm part communicated with the connected pipe via the intersection part. The tail end of said hollow arm part is sealed. Driven by a rocking table, liquid in the reactor chamber can flow along a long shaft of the disposable bioreactor, so as to produce wave and turbulent mix, and mixing and mass transfer efficiency is increased greatly. B: Disclosed is a flow-through sterilization device, comprising a housing having a water inlet and a water outlet, and a sterilization cylinder disposed inside the housing. An LED lamp assembly is provided at the bottom of the sterilization cylinder; the LED lamp assembly and the sterilization cylinder enclose a sterilization cavity; a reflector is provided at the top of the sterilization cavity; a water flow passage is formed between the housing and the sterilization cylinder; and the water inlet, the water flow passage, the sterilization cavity, and the water outlet are connected in sequence. The deep ultraviolet light emitted by the LED lamp assembly is incident into the sterilization cavity to sterilize the water flowing through the sterilization cavity; and the reflector reflect the deep ultraviolet light in the sterilization cavity, so that the deep ultraviolet light can repeatedly act on the water flow to further enhance the sterilization effect on the water flow. In addition, the reflector disposed on the top of the sterilization cavity can reflect the deep ultraviolet light downward into the sterilization cavity, such that dead corners in the sterilization cavity can be effectively sterilized. C: A water tank and a dishwasher. The water tank comprises: a water tank chamber (b901); a salt feeding port (b10) arranged on a side wall of the water tank chamber (b901), and located at the downstream of a water tank water inlet (b7); and a flow rectification structure arranged on an inner wall of the water tank chamber (b901), and comprising at least one rib, the rib being located on a flowing path of salt and located at the upstream of a water tank water outlet (b8). Water flow bypasses the flow rectification structure and forms at least one bypassing path. Salt or a salt solution is fed into the water tank chamber (b901) by means of the salt feeding port (b10), and then is performed an electrolysis reaction to prepare disinfecting water. While the disinfecting water is used to disinfect tableware in the dishwasher, a pipeline through which the disinfecting water flows is also disinfected and sterilized. A certain time is required for dissolving salt in water, and the flow rectification structure is used to intercept salt blocks on the path where salt flows to the water outlet, so that the salt blocks are impacted and dispersed or the time for the salt to reach the water outlet is prolonged. D: An ultraviolet disinfection lamp, comprising a lamp holder (1) and a lampshade (2) connected to each other, and a plurality of ultraviolet lamp tubes (3) provided in the lampshade (2). The end of the lamp holder (1) connected to the lampshade (2) is provided with a protrusion (4). A communication hole (10) communicating with the interior of the lamp holder (1) is provided in the protrusion (4). A plurality of positioning holes (5) are arranged on the protrusion (4) around the circumference of the communication hole (10). The end of the lampshade (2) connected to the lamp holder (1) is provided with a bottom cover (6) covering the protrusion (4). The bottom cover (6) is provided with a first through hole (12) correspondingly communicating the communication hole (10) and a plurality of penetrating holes (7) correspondingly communicating with the positioning holes (5). The ultraviolet lamp tubes (3) extend into the lamp holder (1) through the first through hole (12) and the communication hole (10). The bottom cover (6) is provided with a plurality of support rods (8) arranged around the ultraviolet lamp tubes (3). One end of the support rods (8) extends into the positioning holes (5) through the penetrating holes (7) and is connected to the protrusion (4), and the other end is connected to a top cover (9) covering the tops of the ultraviolet lamp tubes (3). The end of the top cover (9) facing the ultraviolet lamp tubes (3) is provided with a protective ring (11) disposed around the ultraviolet lamp tubes (3). According to the ultraviolet disinfection lamp, the lampshade is easy to install, the bulb replacement is very convenient, and the overall structure of the lamp is simple.

B

Please select the most similar patent number from A, B, C and D. Which number is? A photosensitive grain-free printing plate, consisting of a plate base, a hydrophilic layer and a photosensitive layer, with the hydrophilic layer and the photosensitive layer being successively coated on the plate base. A hydrophilic coating is obtained by coating a composition of nano-scale and/or micron-scale particles or a composition containing nano-scale and/or micron-scale particles on the surface of the plate base. The hydrophilic coating thus obtained has an appropriate roughness, which imparts to the surface of the plate base hydrophilic and water-retaining properties. The presence of hydrophilic particles in nano scale and/or micron scale in the hydrophilic layer does not only ensure that the printing plate meets the requirements of ink absorption but also improves the abrasive resistance of the plate base surface, and furthermore maintains good cohesive forces between the hydrophilic layer and the printing base and between the hydrophilic layer and the photosensitive layer. In comparison with the existing photosensitive plates, the contamination caused by the waste acid and waste base liquids produced by electrolysis and oxidation of aluminium plates is avoided and the water and electricity consumption is reduced. A: An antistatic nanofiber nonwoven material and manufacturing method. The nonwoven material comprises: a first hydrophilic layer (1), an antistatic composite layer (2), and a second hydrophilic (3) provided from top to bottom in that order. The antistatic composite layer (2) is assembled by alternatively stacking an antistatic nanofiber layer and a conductive nanofiber layer on each other. The first hydrophilic layer (1) and the second hydrophilic layer (3) are manufactured using a hydrophilic polypropylene nanofiber material prepared using a hydrophilized polypropylene, thereby improving an antistatic performance of the nonwoven material. The material has simple processing techniques and a low cost, is not affected by environmental humidity, and has excellent hydrophilic properties. B: A nonwoven nanofiber antibacterial material and a method for preparing same. The nonwoven material comprises at least two nanofiber antibacterial layers (1). A hydrophilic nanofiber layer (2) is provided between two adjacent nanofiber antibacterial layers (1). Nanofibers (4) of the nanofiber antibacterial layers (1) are arranged crosswise in the three-dimensional space so as to form holes having nanoparticles and nanofiber clusters. Antibacterial nano-silver particles (31) and antibacterial nano-zinc oxide particles (32) are distributed in the holes. The nano-silver particles (31) and the antibacterial nano-zinc oxide particles (32) are distributed in the holes having nanoparticles and nanofiber clusters, and the antibacterial particles are not easy to fall off, which function together to enable the nonwoven nanofiber antibacterial material to have a lasting antibacterial property. Moreover, the hydrophilic nanofiber layer (2) provides the nonwoven nanofiber antibacterial material with a good hydrophilic property. The nonwoven nanofiber antibacterial material prepared with the preparation method of the present invention can be broadly applied to the fields of daily necessities, medical care, hygienic products for infants, children and adults and the like. C: Disclosed is a heat-sensitive processless planographic printing plate material containing a thermosensitive protection layer. The planographic printing plate material sequentially comprises a supporting body, a hydrophilic layer, a heat-sensitive layer and a thermosensitive protection layer from the bottom up. The thermosensitive protection layer therein can not only isolate oxygen and protect the heat-sensitive layer from oxygen inhibition, but can also sense heat and allow a polymerization reaction to take place. Thus the binding force between same and the next layer is improved, so that the precision of printing plate images is high, the development performance is good, and the pressrun is high. D: A light aerogel material. A preparation raw material of the material comprises a polymer material and clay. The light aerogel material is a light strong absorption material prepared by mixing the clay and the hydrophilic polymer material with other possibly added inorganic raw materials, performing high speed stirring by using water as a medium to become into the viscous state, and processing by means of a freeze drying method. The light aerogel material prepared in the present invention has nano-scale and micron-scale pore structures so that the material has a high water-absorbing capacity and water absorption. The light aerogel material can be used in a litter box. The density of the light aerogel material is controllable so as to meet requirements of different adsorption occasions such as a litter box. Meanwhile, the material can not only be crushed to form an irregular structure having a rough surface, but also be frozen forming into different special shapes by a die.

C

Please select the most similar patent number from A, B, C and D. Which number is? A stamp comprises: a stamp case (10), the lower end of which is provided with an accommodation cavity (100); a stamp handle (20), provided on the upper side of the stamp case (10); a columnar core (30), running through the stamp case (10), the upper end of the columnar core (30) being connected to the stamp handle (20); a spring (40), provided between the stamp handle (20) and the stamp case (10); a clamping plate (50), formed at the lower end of the columnar core (30) and accommodated inside the accommodation cavity (100) of the stamp case (10); a stamp bucket (60) for storing ink, clamped to the clamping plate (50) and accommodated inside the accommodation cavity (100). A stamping surface is provided at the lower end of the stamp bucket (60), and ink absorbing cotton is disposed inside the stamp bucket. When the stamp bucket (60) is at an upper stopping point, the clamping plate (50) is spaced from the upper stopping point by a distance; and therefore, the clamping plate (50) can be driven upwards by continuously pushing the stamp handle (20) upwards, so that the clamping plate (50) is separated from the stamp bucket (60). A: A sealing-type radio-frequency electronic seal, comprising a backing paper layer (1). A conductive coating (2) is provided on the backing paper layer. A plurality of hollows (3) are formed in the middle of the conductive coating, and an antenna resonant cavity (4) is formed by an opening at one end of one of the hollows, the antenna resonant cavity being connected to a chip connection strap assembly (5) at the opening. The electronic seal facilitates recognition, has a simple manufacturing process and a low cost, and is easy to popularize, and the seal is thin, thereby having no influence on the aesthetic feeling of calligraphy and painting artworks and having the characteristic of preventing it from being used twice. B: A method, apparatus, and device for recognizing seal text, and a computer-readable storage medium, the method comprising: acquiring a seal detection result of an object to be processed, the seal detection result comprising a seal detection frame and angle information of the seal detection frame (101); on the basis of the seal detection result, obtaining a seal image in a forward seal detection frame (S102); acquiring the outline of at least one text line in the seal image (103), and cutting out a text line image according to the outline of the at least one text line (104); and performing text recognition on the text line image to obtain a text recognition result (105). C: A seal management method, comprising: receiving a seal use application form sent by a first terminal, the seal use application form carrying an institution name and a seal type, and the seal type comprising a physical seal (202); acquiring a corresponding order sending queue which comprises a seal user identifier according to the institution name, and sending the seal use application form to a second terminal corresponding to the seal user identifier (204); receiving a query request for the physical seal uploaded by the second terminal, and obtaining a storage position and the current state of the physical seal according to the query request (206); and if the current state is an available state, recording the duration of the physical seal leaving the storage position, and if the duration exceeds a preset effective time, marking the physical seal as in an abnormal state (208). D: An intelligent seal protection control device and a seal management system. The seal management system comprises: an application terminal (11) for sending a seal usage request, an authorization management terminal (12) for approving seal usage authorization and an intelligent seal protection control device (13) for affixing a seal; the application terminal (11), the authorization management terminal (12) and the intelligent seal protection and control device (13) communicate via a wireless network; and all the authority settings are completed via the seal authorization management terminal (12). In addition, a seal management server (14) for managing and maintaining the intelligent control device usage system can be configured. The seal management system provides possibilities of a seal management remote operation by means of network authorization authentication, achieves accurate tracking of a location, supervision, authorized use and secure storage of a seal, reduces the risk during use via an alarm, simplifies seal approval procedures, and improves the flexibility of seal usage, thereby satisfying the requirement for office working with a low degree of hierarchy in the information society, and improving the work efficiency.

A

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed is a fingernail printing device, comprising a main frame (1) provided with an annular groove (11), an annular soft rubber ring (2) engraved with printing patterns (21), wherein the annular soft rubber ring (2) is embedded into the annular groove (11), the outer peripheral surface of the annular soft rubber ring (2) is provided with arch-shaped protrusions (22), with the printing patterns (21) being engraved on the arch-shaped protrusions (22); and further comprising an oil-scraping sheet (3) may be provided on the main frame (1). The present device is able to coat fingernails with patterns simply and quickly, and the device is safe enough so as to cause no damage to a user's skin during usage. A: A portable, suction-type, anti-fogging myopia-correction eyewear, the eyewear comprising: a myopia-correction lens body (1) and a suction pad (2) constructed using soft silicone rubber. The myopia-correction lens body (1) and the suction pad (2) are formed using injection molding. The suction pad (2) is a hollow frustum with a narrower top. An upper portion of the suction pad (2) is formed into a circular surface (22). The upper portion of the suction pad (2) is provided with a circular groove (21). The myopia-correction lens body (1) comprises a lens portion (11) and a connecting portion (12). The lens portion (11) and the connecting portion (12) are formed as a single structure. The connecting portion (12) is a frustum-shaped structure with a narrower top. A top end of the connecting portion (12) is connected to the lens portion (11). The diameter of a bottom end of the connection portion (12) corresponds to the diameter of a top end of the suction pad (2). The bottom end of the connection portion (12) is provided with a circular snap-fit protrusion (121) corresponding to the ring-shaped groove (21). The circular snap-fit protrusion (121) forms a snap-fit connection by being inserted into the circular groove (21). The portable, suction-type, anti-fogging myopia-correction correction eyewear has a simple structure and good sealing and anti-fogging properties. The eyewear can be adhered multiple times over an extended period and is resistant against aging and deformation. B: Disclosed are a device capable of manicuring a nail using a spray gun and a method for manicuring a nail using the manicure machine. The manicure machine (1) comprises a measuring module (2) capable of measuring a three-dimensional configuration of a finger (11)/nail; a print film module (7), wherein the print film module (7) comprises at least one print film execution module (73), the print film execution module (73) comprises a print film (710), and the print film execution module (73) can unwind/wind/move the print film (710); an engraving module (3) capable of engraving a pattern on the print film (710), wherein the print film module (7) can press the print film (710), on which the pattern is engraved, onto the finger (11); and a spraying and painting module (8) capable of coating the pattern of the print film (710) with a paint/nail polish by means of spraying and/or brushing, so as to print the pattern onto the nail. The manicure machine (1) can manicure the nail by using an airbrush and a brush without damaging the manicure pattern. C: Disclosed are a drip irrigation pipe with an anti-blocking function and a machining method thereof. The drip irrigation pipe comprises: a water supply pipe (1), wherein the water supply pipe (1) is used for delivering irrigation water; a cylindrical dropping head (2), wherein the cylindrical dropping head (2) is provided with an annular groove (21), and a water outlet hole (22) penetrating the cylindrical dropping head (2) is provided in the annular groove (21); and an elastic sleeve (3), wherein the elastic sleeve (3) is arranged on the cylindrical dropping head (2) in a sheathed manner and is located in the annular groove (21), the elastic sleeve (3) covers the water outlet hole (22), the cylindrical dropping head (2) is arranged in the water supply pipe (1), a water outlet (11) matching the cylindrical dropping head (2) is provided in the water supply pipe (1), and the water outlet (11) is located outside the annular groove (21). The machining method comprises the step of, in the extrusion molding process of the water supply pipe (1), enabling the cylindrical dropping head (2) to be embedded in the extrusion-molded water supply pipe (1). D: A waterproof ventilating sole (1) is provided. A plurality of grooves (2) are distributed on the upper surface of the sole (1). At least one through hole (3) leading to the bottom surface of the sole (1) is provided on the bottom of each of the grooves (2). A film button (5) is mounted in each of the grooves (2). The film button (5) comprises a ring corresponding to the grooves (2) and at least one waterproof ventilating film (7) tensioned on the ring. The film button (5) is provided with waterproof chamfers (6) which are the outward prolongation of the upper end of the film button (5). The bottom surface of the waterproof chamfers (6) is a plane or provided with at least a cycle of annular protrusion and/or annular concave groove. A configuration matched with the annular protrusion and/or ring concave groove is correspondingly provided on the upper surface of the sole (1).

B

Please select the most similar patent number from A, B, C and D. Which number is? Provided is a convenient sticker roll (100), comprising a plurality of sequentially connected convenient sticker parts (10), the convenient sticker roll being disposed rolled in the direction in which the plurality of convenient sticker parts is arranged; part of the area of one side of the convenient sticker part is a sticky area (11); at least part of the area of the other side of the convenient sticker part is a non-stick area; when rolled up, the sticky area of the convenient sticker part abuts against the corresponding non-stick area of the convenient sticker part. Part of the area of the convenient sticker roll is coated with a sticky material, thus reducing the amount of sticky material used. A: A display panel and a manufacturing method therefor. The display panel comprises: a display substrate (100) provided with a display area (110) and a peripheral area (120) surrounding the display area (110); and a touch layer (101) stacked on the display substrate (100) and comprising a plurality of touch electrodes (111) and a plurality of wirings (112), the orthographic projection of the plurality of touch electrodes (111) on the display substrate (100) being located in the display area (110), and the orthographic projection of the plurality of wirings (112) on the display substrate (100) being located in the peripheral area (120). One end of each of the plurality of wirings (112) is connected to a corresponding touch electrode (111), and the other ends of the plurality of wirings (112) are located in a plurality of binding areas (1200) arranged at intervals in the touch layer (101); the orthographic projection of the plurality of binding areas (1200) on the display substrate (100) is located in a first peripheral sub-area (121); the first peripheral sub-area (121) is a partial area of one side of the display area (110) in the peripheral area (120); and the plurality of binding areas (1200) are arranged in an extension direction of the outer side edge of the first peripheral sub-area (121). B: A display panel and a manufacturing method therefor. The display panel comprises: a display substrate (100) provided with a display area (110) and a peripheral area (120) surrounding the display area (110); and a touch layer (101) stacked on the display substrate (100) and comprising a plurality of touch electrodes (111) and a plurality of wirings (112), the orthographic projection of the plurality of touch electrodes (111) on the display substrate (100) being located in the display area (110), and the orthographic projection of the plurality of wirings (112) on the display substrate (100) being located in the peripheral area (120). One end of each of the plurality of wirings (112) is connected to a corresponding touch electrode (111), and the other ends of the plurality of wirings (112) are located in a plurality of binding areas (1200) arranged at intervals in the touch layer (101); the orthographic projection of the plurality of binding areas (1200) on the display substrate (100) is located in a first peripheral sub-area (121); the first peripheral sub-area (121) is a partial area of one side of the display area (110) in the peripheral area (120); and the plurality of binding areas (1200) are arranged in an extension direction of the outer side edge of the first peripheral sub-area (121). C: An epidermis fungus sampling and staining method. The epidermis fungus sampling and staining method comprises: providing a transparent detection card (100) having a detection area (11), a transparent viscous material layer (111) being attached to the detection area (11), and a surface of the transparent viscous material layer (111) being covered with a protection film (112); combing in the hair direction of a subject under test for multiple times by using a sampling comb subjected to disinfection treatment, so that dandruff is sticked to the sampling comb; uncovering the protection film (112) on the transparent detection card (100), and repeatedly attaching tooth tips where the dandruff is sticked of the sampling comb to the surface of the transparent viscous material layer (111) to enable sufficient dandruff to be sticked to the transparent viscous material layer (111); sequentially dropwise adding equal amounts of dyes A and B to the surface of the transparent viscous material layer (111), standing, and washing with deionized water; and transferring the transparent detection card (100) under a microscope for microscopy. The epidermis fungus sampling and staining method has the characteristics that sampling is convenient, samples are easy to transfer and fix and not easy to pollute, the staining time is short, and the like, and the success rate and efficiency of sampling and staining are improved. D: An entertainment sticker, an entertainment sticker device and a method for using an entertainment sticker. The entertainment sticker comprises a sticker body (1), a substrate (2) and a cover film (3). Edges of the cover film (3) are bonded to the substrate (2). The sticker body (1) is placed in a space enclosed by the cover film (3) and the substrate (2). One side of the sticker body (1) is provided with an image-text area, and the other side thereof is provided with a bonding layer.

D

Please select the most similar patent number from A, B, C and D. Which number is? The invention discloses a direct liquid type writing tool. The writing tool comprises a pen body (4), a writing element (1), an ink absorbing body (2, 13) and a fiber water leading core (3). At least one gas and liquid balancer (5) is arranged in the pen body (4) in the axis direction thereof, and is arranged in an annular gap formed by the fiber water leading core (3) and the pen body (4). One or more gas and liquid exchange grooves (9) penetrating the outer circumference face of the gas and liquid balancer (5) and having the capillary force effect on ink is arranged on the outer circumference face of the gas and liquid balancer (5). An overflow groove (10) is formed in the radial face of the gas and liquid balancer (5), one end of the overflow groove (10) makes contact with the fiber water leading core (3), and the other end of the overflow groove (10) is communicated with the gas and liquid exchange groove (9), and the outer circumference face of the fiber water leading core (3) and the inner hole wall of the gas and liquid balancer (5) are in a gapless fit or an interference fit. A: An electronic atomizing device, and an atomizer (100) thereof. The atomizer (100) comprises a housing (110) and a base (120). The housing (110) is fitted over the base (120); a liquid storage cavity (141) is formed on the inner side of the housing (110); at least one air-liquid balancing component (150) and at least one air inlet (1430) communicated with the at least one air-liquid balancing component (150) are further comprised; the at least one air-liquid balancing component (150) is mounted on the base (120) and is provided at the lower part of the liquid storage cavity (141); each air-liquid balancing component (150) comprises a column body extending toward the liquid storage cavity (141) and a liquid storage and air exchange structure at the circumference of the column body; the liquid storage and air exchange structure comprises at least one air return tank (153) and a plurality of liquid storage tanks (1510, 1520); one end of the air return tank (153) is communicated with the liquid storage cavity (141), and one end is communicated with the air inlet (1430) for regulating the air-liquid balance in the liquid storage cavity (141). The atomizer (100) has advantages of smooth supply of a liquid medium, high safety performance, and being not easy to leak. B: An electronic atomization device and an atomizer (100) having same. The atomizer (100) comprises an atomization component (130), a liquid storage cavity (141) connected to the atomization component (130) for liquid conduction, and a gas channel communicated with the atomization component (130) for gas conduction. The atomizer (100) further comprises a gas-liquid equilibrium element (150) and a gas inlet (1430) communicated with the gas-liquid equilibrium element (150). The gas-liquid equilibrium element (150) comprises liquid storage tanks (1510, 1520) with capillary force function and a gas return groove (153). One end of the gas return groove (153) is communicated with the liquid storage cavity (141), and the other end is communicated with the gas inlet (1430). The gas return groove (153) is communicated with the liquid storage tanks (1510, 1520) such that the liquid storage tanks (1510, 1520) are communicated with the liquid storage cavity (141). The gas-liquid equilibrium element (150) can balance the gas pressure in the liquid storage cavity (141), facilitate liquid discharge, prevent dry burning, and prevent liquid leakage caused by gas pressure imbalance. C: A liquid guide element (200) and a scribble tool (1). A three-dimensional network structure is provided inside the liquid guide element (200) and the liquid guide element (200) can absorb and release liquid. One side of the liquid guide element (200) contacts the liquid in the liquid storage element (100) of the scribble tool (1). A gap D is provided between the liquid guide element (200) and the inner wall of the liquid storage element (100). The diameter of the maximum inscribed circle of the gap D is between 0.03 mm and 0.25 mm. The liquid guide element (200) controls the gas-liquid exchange of the scribble tool (1). By providing the gap between the liquid guide element (200) and the inner wall of the liquid storage element (100), the liquid guide element (200) can control the gas-liquid exchange of the scribble tool (1), thereby satisfying the performance requirements of different scribble tools (1). D: An electronic atomization device and an atomizer (100) thereof. The atomizer (100) comprises a housing (110) and an atomization assembly (130) provided in the housing (110); a liquid storage cavity (141) is formed inside the housing (110), and the atomizer further comprises at least one liquid guide element (160), an air-liquid balancing element (150), and an air inlet (1430) communicated with the air-liquid balancing element (150); the air-liquid balancing element (150) comprises a through hole (1560) and an liquid storage and air exchange structure (252) located at the periphery of the through hole (1560); the at least one liquid guide element (160) is correspondingly inserted into the through hole (1560), and the liquid storage cavity (141) is in liquid guide connection with at least one end of the atomization assembly (130); the liquid storage and air exchange structure (252) is provided at the periphery of the atomization assembly (130) and comprises at least one return air tank (153) and a plurality of liquid storage tanks (1510, 1520); one end of the return air tank (153) is communicated with the liquid storage cavity (141), and the other end is communicated with the air inlet (1430); the liquid storage tanks (1510, 1520) are at least partially connected to the at least one liquid guide element (160) to balance liquid supply of the at least one liquid guide element (160). The atomizer (100) has the advantages of being smooth in liquid medium supply and not prone to leakage.

C

Please select the most similar patent number from A, B, C and D. Which number is? An ink bottle for supplying ink to a printing device, the bottle comprising a bottle body (1) and a bottle cap, the cap comprising an ink filling nozzle (2) and a connecting portion (3). The ink filling nozzle (2) and the connecting portion (3) each are provided with a first sealing connecting end (4) and a second sealing connecting end (5), the ink filling nozzle (2) is in communication with the connecting portion (3) via the second sealing connecting end (5), and the connecting portion (3) is in threaded fit with a neck of the bottle body (1). The bottle cap of the ink bottle may be adapted to two sealing caps of different shapes and sizes, and has good universality. A: An automobile tire glue-water bottle comprises a bottle body (1) for accommodating the glue-water and a glue-water hose (2) which is arranged inside the bottle body, wherein an opening on the glue outlet end of the bottle body is provided with a second bottle cap (8) and a first bottle cap (3) which completely wraps the second bottle cap, and the second bottle cap can slide inside the first bottle cap; the glue-water hose (2) is used for leading out the glue-water inside the bottle body through a glue-water bottle connecting pipe penetrating the second bottle cap; the end part of the glue-water hose is connected with a retaining valve, the retaining valve comprises a retaining valve body (51), a sealing end cap (53) and a retaining valve cap (52) which is arranged on the end part away from the glue-water hose of the retaining valve body, a through pipe is arranged inside the retaining valve body, a glue guiding groove (511) communicated with the through pipe is arranged on the end away from the retaining valve cap, and the sealing end cap is arranged inside the through pipe and moves along the axial direction of the bottle body inside the through pipe; and a gravity ring (7) wrapping the retaining valve is arranged outside the retaining valve. Through the design of the gravity ring, the tire glue-water bottle enables full utilization of the glue water inside the bottle body, simple structure, and convenience in use. B: A hydrogen-rich water generation bottle cap mounted on a mineral water bottle. A drinking water spout (1) is formed at the top of the bottle cap. An internal thread (6) connected to the opening of the mineral water bottle is formed on the inner wall of the bottle cap. A hydrogen-rich water generation unit comprising a separator (2), a hydrogen generation box (3), and a rotary seal switch (5) is provided between the internal thread (6) and the top of the bottle cap. The separator (2) is circular, and the edge of the separator (2) is fixed to the inner wall of the bottle cap. A buffer space is formed between the separator (2) and the drinking water spout (1). A water through hole is formed on the separator (2). The cylindrical hydrogen generation box (3) with an opening end is provided on the side of the separator (2) facing the spout of the bottle cap. The opening end of the hydrogen generation box (3) is inserted into a mounting hole on the separator (2) by means of an elastic fastener. A hydrogen rich water stick (7) is provided in the hydrogen generation box (3). Meshed holes are formed on the side surface and the bottom surface of the hydrogen generation box (3) respectively. The diameter of the hydrogen generation box (3) is smaller than the inner diameter of the bottle cap. The rotary seal switch (5) comprising a fixing ring rack (501), a fixed plate (502), and a movable plate (503) is provided below the hydrogen generation box (3). The hydrogen-rich water generation bottle cap is able to generate hydrogen-rich water by means of contact between the hydrogen rich water stick and water. A bottle cap provided with a hydrogen rich water stick is used in replacement of a conventional bottle cap to generate hydrogen-rich water in the mineral water bottle, improving the portability and the versatility of the hydrogen-rich water generation device. C: A gas cylinder, comprising a cylinder body (1) filled with compressed carbon dioxide and a connecting member (2); the connecting member (2) has two open ends, a first open end (21) of the connecting member (2) is fixedly connected to the opening of the cylinder body (1), and a second open end (22) of the connecting member (2) is connected to a sealing cover (3) in a sealed manner, and a channel (23) in communication with the first opening end (21) and the second opening end (22) is provided inside the connecting member (2); the channel (23) is in communication with the inner cavity of the cylinder body (1); the outer side wall of the connecting member (2) is provided with an external thread (4); and the height H of the gas cylinder is 3 cm to 20 cm. The structure of the gas cylinder is very simple in design, small in volume and light in weight, allows easy and direct installation and use of the gas cylinder, and has good air tightness, being capable of effectively reduce the consumption of high pressure gas, reducing costs. D: The present invention provides an ink filling device for an ink cartridge (1), the ink filling device comprising a base (2), an upper casing (3) connected to the base (2) and an ink filling container (4) for containing ink. The upper housing (3) has an ink cartridge receiving cavity (38) for placing the ink cartridge (1). An ink filling interface (34) to be joined to an ink outlet (41) of the ink filling container (4) and an ink filling needle (33) to be inserted into an ink filling hole (11) on the ink cartridge (1) are further disposed on a top wall (31) of the upper casing (3). The ink filling container (4) is a negative-pressure ink filling container capable of extracting air from the ink cartridge in advance.

D

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed is a multi-functional engraving machine, comprising a base (1), upright columns (2), an engraving platform and a cutter mechanism. The engraving platform comprises a movable platform (3) and a workpiece clamping device (4). The movable platform (3) is provided with an automatic rising-lowering platform. The automatic rising-lowering platform comprises a platform surface (5), a platform surface rising-lowering frame (6) and a platform surface automatic rising-lowering mechanism. The platform surface automatic rising-lowering mechanism is fastened on a beam in the middle of the movable platform (3). The platform surface rising-lowering frame (6) is fixed to the platform surface automatic rising-lowering mechanism. The platform surface (5) is fixed to the platform surface rising-lowering frame (6). The multi-functional engraving machine using the above-mentioned structures can enable the rising-lowering platform to perform automatic rising-lowering by means of a program code. When a plane is engraved, the platform surface rises, and when a three-dimensional object is engraved, the platform surface automatically lowers. Thereby, the present invention has a high degree of automation, and is widely used and is easy and safe to operate. A: Provided is a lighting device for a multifunctional medical rescue platform; a table (11) has a cubic board-shaped structure; the middle position of the lower end of the table is equipped with a lifting/lowering bar (2); the central axis of the lifting/lowering bar (2) is arranged perpendicular to the lower end face of the table (11); the lifting/lowering bar (2) is assembled together with a screw-thread jack (5); the screw-thread jack (5) is mounted on a movable platform (13); casters (4) are fixed on the lower end of the screw-thread movable platform (13); a snap groove (7) is provided on the end faces of the two sides of the table (11); the table (11) is raised or lowered by means of adding to the screw-thread jack (5); such a design is convenient for medical care personnel to adjust the height according to requirements; in addition, the process of raising and lowering the screw-thread jack (5) is smooth and gradual, thus solving the problem of conventional lifting/lowering devices being overly jarring and uncontrolled; additionally, the design of the solar panel (3) is convenient for converting solar energy into electrical energy and storing it, and the design effectively addresses the problem of electrical energy; in addition, the design of the LED lamp (12) solves the problem of a conventional table (11) being unable to perform a lighting function, and the design is convenient for medical care personnel to attend to a patient. B: A lift mechanism of an exhibition portable power distribution cabinet comprises a portable power distribution cabinet (1), a servo motor (2), a reduction drive (3), four vertical threaded rods (4), four threaded rod sleeves (5), four chain wheels (6), a chain (7), and a lift platform (8). The four vertical threaded rods (4) are arranged vertically, and lower ends of the vertical threaded rods (4) are rotatbly disposed on the portable power distribution cabinet (1). The four chain wheels (6) are fixed at the lower ends of the four vertical threaded rods (4), respectively. The chain (7) is arranged on the four chain wheels (6). Lower ends of the four threaded rod sleeves (5) are fit via openings to upper ends of the four vertical threaded rods (4) and connected using threads to the vertical threaded rods (4), respectively. Upper ends of the four threaded rod sleeves (5) are fixed at a lower side of the lift platform (8). The lift platform (8) is arranged horizontally. The lower end of one of the four vertical threaded rods (4) is connected to the reduction drive (3) and driven by the same. The reduction drive (3) is connected to the servo motor (2) and driven by the same. The lift mechanism is simple in structure, easy to operate, and implements automatic opening of the lift platform (8), saving time and effort, and ensuring safety. C: An electric lifting platform capable of retracting upon encountering a resistance, comprising a lifting upright (1), a platform (2), a controller (4), and a manipulator (5). The controller (4) comprises a master MCU (42) and a motor driving circuit (43). An output end of the master MCU (42) is connected to the motor driving circuit (43). The electric lifting platform further comprises a multi-axis sensor module (6) configured to acquire resistance-encountering data of the platform (2). The multi-axis sensor module (6) acquires changes in platform panel motion states on different axes, thereby meeting changes in platform panel motion states caused by different collision objects at different positions. Installation position requirements are not strict, direct contact with a force-receiving surface is not required, and low-pressure collisions can also be detected. The multi-axis sensor module (6) is connected to an input end of the master MCU (42). The master MCU (42) sends a control signal to the motor driving circuit (43) after processing the resistance encountering data. The motor driving circuit (43) controls the lifting upright (1) to perform a corresponding retraction action. The lifting platform enables sensitive and rapid detection of an obstruction upon encountering the obstruction, has improved safety. D: Provided is a three-dimensional engraving machine, which resolves the problem of inaccurate engraving in existing engraving machines; the invention comprises a machine frame and an engraving platform (17) arranged on said machine frame; a position-limiting clamp (7) used for clamping is disposed above the engraving platform (17); the machine frame comprises a base (1) and vertical columns (2) arranged at the two sides of the base (1); a transverse beam (12) connects the two vertical columns (2); the base (1) is provided with a vertical motor which drives the engraving platform (17) in reciprocating horizontal and vertical motion; the transverse beam (12) is fixedly connected between the vertical columns (2), and the parallel vertical columns (2) are provided with a horizontal lateral guide rail (11) for connection; a blade frame (8) is connected to the guide rail (11) using support plates (9). The blade may oscillate forward and backward, driven by a motor in coaxial concomitant motion, performing three-dimensional machining at various angles, thus improving engraving accuracy and making the invention suitable for complicated engraving machining.

D

Please select the most similar patent number from A, B, C and D. Which number is? A decorative water cup comprises a housing (1), a pump device (2) provided in said housing (1), said pump device (2) comprising a pump housing (21), an electric motor (23) being arranged within said pump housing (21), and a vibration-damping layer (22) being arranged between the electric motor (23) and the inner surface of the pump housing (21). The vibration-damping layer (22) very effectively absorbs vibration occasioned when the electric motor (23) is in operation, allowing the electric motor (23) to operate with greater efficiency, and allowing the electric motor (23) to operate more quietly. A: A decorative water cup, comprising a housing (1), said housing (1) comprising a cup body (11) and a base (12), the cup body (11) comprising an accommodation portion (111) and a transparent portion (112), and a cavity (121) being provided within the base (12). The accommodation portion (111) is arranged within the cavity (121); the transparent portion (112) is made of a transparent material and is configured as a plurality of prisms. Because the transparent portion (112) is configured as a plurality of prisms, light rays striking the cup body (11) are reflected a number of times, making the cup body (11) appear more crystalline and dazzling to the eye, thus significantly enhancing the aesthetic appeal of the decorative cup. B: A decorative light, comprising a housing (1), a circuit board (11) being provided within the housing (1), an LED light (111) being provided on the circuit board. The housing (1) comprises a lower cover (12), a battery compartment (121) being provided on the lower cover (12). A battery (122), which is electrically connected to the circuit board (11), is provided within the battery compartment (121), and a battery fastening block (13) is provided on the battery compartment (121), a fastening block stopper (131) being provided on the battery fastening block (13). The battery fastening block (13) is fixedly connected to the lower cover (12), compressing, limiting and fixing the battery (122) by means of the fastening block stopper (131). The battery fastening block can fix the battery within the battery compartment, effectively preventing the battery from shaking (122), thereby ensuring the usage performance of the battery (122), and enabling the battery (122) to be used more safely and reliably. C: A washing and draining integrated pump, comprising a power unit, a washer pump, a drainage pump, a washer pump water inlet chamber (42), and a drainage pump water inlet chamber (43). The power unit comprises a motor shell (1), a motor, and a motor shaft (10); the washer pump comprises a washer pump shell (2), a washer pump cavity (20), a washing impeller (12), and a washing water outlet (22); the drainage pump comprises a drainage pump shell (3), a drainage pump cavity (30), a drainage impeller (13), and a drainage water outlet (32); the washer pump water inlet chamber (42) is provided with a washing water inlet (21); the drainage pump water inlet chamber (43) is provided with a drainage water inlet (43); the motor shaft (10) passes through the washing impeller (12) and the drainage impeller (13) and can drive the washing impeller (12) and the drainage impeller (13) to rotate; a crushing blade (61) is mounted on the motor shaft (10) and used for first crushing food residues during draining. On the other hand, the washer pump water inlet chamber (42) and the drainage pump water inlet chamber (43) are combined to constitute an integrated water inlet chamber (4), and a filter means (63) is provided at the joint where the integrated water inlet chamber (4) is communicated with the washer pump cavity (20). A washing and draining integrated pump using this structure has less parts, occupies a small space, and is low in costs and high in the integration degree; during drainage, by first crushing residues and then discharging same, the user experience is improved. D: An air-cooling air compressor having an improved structure, the air compressor comprising an electric motor and an air pump body. The electric motor comprises an electric motor housing (10), a stator (11) and a rotor (12), wherein the stator (11) is fixedly arranged in the electric motor housing (10), and the rotor (12) is rotatably arranged in the stator (11). The air pump body comprises an air pump housing (20), a crank (21), a connecting rod (22), a valve plate (23) and an air cylinder cover (24), wherein the crank (21) and the connecting rod (22) are arranged in the air pump housing (20); the air cylinder cover (24) is arranged above the air pump housing (20); the valve plate (23) is clamped between the air cylinder cover (24) and the air pump housing (20); the electric motor housing (10) is connected to the air pump housing (20); a rotating shaft (121) of the rotor (12) extends into the air pump housing (20) and is connected to the crank (21); a fan base (31) is further arranged above the air cylinder cover (24); and a fan (32) used for carrying out air-cooling heat dissipation on the air cylinder cover (24) is arranged in the fan base (31).

A

Please select the most similar patent number from A, B, C and D. Which number is? Provided is a tire self-rescuing recovery device, mainly comprising a recovery boot (1), a diagonal member (2), a hook connecting base (4) and a hook (5). The recovery boot (1) is of a housing consisting of an arc-shaped plate (1-3) at the top, end plates (1-4) at two ends and side plates (1-5) on two sides, wherein a lower part of the housing is opened, and an outer side of a tire can be clamped by the housing to form a bulge. Two diagonal members (2) are fixed on a side plate (1-5) on one side. The recovery boot (1), the two diagonal members (2) and the hook connecting base (4) form a triangular bracket. A through hole (4-1) passing through the upper side and the lower side is formed in the middle of the hook connecting base (4). A hook rod of the hook (5) passes through the through hole (4-1). An upper section of the hook rod is a screw rod (5-1). A fastening screw nut (3) is arranged at a part of the screw rod (5-1) extending out of the through hole (4-1) and positioned above the hook connecting base (4). A lower end of the hook (5) adopts a hook head (5-2) which faces towards an inside of the side plate (1-5). The present device is convenient to mount and dismount, and can be applied to automobile tire recovery. A: An adjustable ditching apparatus of an agricultural machine, comprising a fixed stand column (1). A ditching shovel fixing plate (2) is fixedly installed on the outer surface of one side of the fixed stand column (1), two locking screws (3) are movably installed on the inner side of the ditching shovel fixing plate (2), a ditching shovel (4) is arranged on the upper surface of the ditching shovel fixing plate (2), a soil dividing plate (5) is fixedly installed on the upper surface of the ditching shovel (4), two locking nuts (6) are fixedly installed on the upper surface of the ditching shovel (4) located on the outer side of the soil dividing plate (5), an adjusting slot (7) is provided on the inner side of the ditching shovel (4), a support connecting base (8) is fixedly installed on the outer surface of the other side of the fixed stand column (1), a roller support (9) is arranged on the outer surface of one side of the support connecting base (8), a movable roller (10) is rotationally installed on the inner side of the roller support (9), an adjusting support (11) is fixedly installed at the outer surface of the other side of the fixed stand column (1) above the support connecting base (8), an adjusting screw rod (12) is threadedly installed on the inner side of the adjusting support (11), a connecting ball head (13) is fixedly installed on the outer surface of the lower end of the adjusting screw rod (12), and a pulling frame (14) is fixedly installed on the outer surface of one side of the fixed stand column (1) above the furrowing blade fixing plate (2). The adjustable ditching apparatus of the agricultural machine can adjust the ditching depth and the supporting height of the movable roller, and can meet the requirements for different ditching depths on different types of land. B: Disclosed is a control mechanism for a dynamic balancing vehicle installed on the dynamic balancing vehicle. The dynamic balancing vehicle comprises a vehicle body and a steering mechanism disposed on the vehicle body. The control mechanism comprises a post (1), a connecting seat (2), a leg-controlling pad (3), a handle (4) and a grip (5). A sliding space is formed inside the post (1) for the handle (4) to slide, and the sliding space has a first position and a second position. An upper end of the post (1) is connected to the connecting seat (2), a lower end of the post (1) is connected to a steering mechanism, and when the post (1) turns, the steering mechanism is driven to turn so as to control the steering of the vehicle body. The connecting seat (2) is formed with an opening thereon, through which the handle (4) is inserted into the sliding space. The leg-controlling pad (3) is connected at two sides of the connecting seat (2) and drives the post (1) to turn. The handle (4) is telescopically slidable along the sliding space and limited therein to slide between the first position and the second position. The grip (5) is connected to the handle (4) and drives the post (1) to turn, and the position of the grip (5) is adjusted through the handle (4). The control mechanism is applicable to hand-operation and leg-operation at the same time. C: Disclosed is a portable escape device (30) for self-rescue in the case of an auto tyre being trapped in a pit, comprising support posts (36, 12), a clamping device (38, A) fitted to the support posts (36, 12), and a jacking device (40, B) fitted to the clamping device (38, A). The support posts (36, 12) is fixedly mounted onto spokes (32, 2). The clamping device (38, A) clamps onto an auto tyre (1). The jacking device (40, B) protrudes and extends out of a top face of a tyre portion (34). The portable escape device (30) for self-rescue in the case of an auto tyre being trapped in a pit can release the trapped auto tyre and perform self-rescue fast and reliably, and is convenient to carry. D: An easy curtain hook comprises an air bag (1), a main frame (2), attachment teeth (3), a retaining bar (4) and a hook (5). The attachment teeth (3) are arranged at a lower end surface of the main frame (2) to attach to a curtain fabric, preventing the hook (5) from falling, and enhancing attachment. The retaining bar (4) is fixed at a right end of the main frame (2). The hook (5) is arranged above the retaining bar (4). A left portion of the hook (5) is arranged at a middle position of an upper end of the air bag (1) to realize self-locking of the hook (5), facilitating detachment of the hook (5), reducing labor, and enabling secure fastening.

C

Please select the most similar patent number from A, B, C and D. Which number is? A fixed vehicle safety inspection system comprises a ray source (10), a vehicle tractor and a detector (11). The vehicle tractor comprises a front fork arm (1), a rear fork arm (3), a front fork arm shaft (2), a rear fork arm shaft (4), a traction mechanism (5), a control unit, a drive unit and a traction passage (7). The front fork arm (1) and the rear fork arm (3) are connected to the front fork arm shaft (2) and the rear fork arm shaft (4) respectively, and can horizontally rotate around the front fork arm shaft (2) and the rear fork arm shaft (4) respectively under the control of the control unit. The front fork arm shaft (2) and the rear fork arm shaft (4) are arranged with one behind the other and are connected with the traction mechanism (5); the axial directions of the front fork arm shaft (2) and the rear fork arm shaft (4) are both perpendicular to the surface of the traction mechanism (5). A: Disclosed are a vehicle traction device and a radiation imaging checking system. The vehicle traction device comprises a frame body (1) and a vehicle wheel fixing structure, wherein the vehicle wheel fixing structure is connected to the frame body (1), and is used for fixing wheels of a detected vehicle; and in a scanning plane perpendicular to an emitting direction of a ray, the projection of the frame body (1) is located on an outer side of the projection of a vehicle body of the detected vehicle. The projection of the frame body (1) of the vehicle traction device is located on the outer side of the projection of the vehicle body of the detected vehicle, and therefore, compared with the prior art, the frame body (1) does not obstruct the ray for detecting the detected vehicle, thereby improving the imaging quality. B: A hand-driven bicycle including a handlebar (1), a vertical tube (2), a flywheel(8) mounted on the front wheel and a steel wire (16). The first end of the vertical tube is fixedly connected with the handlebar. The second end of the vertical tube is rotatably connected with a fork arm (6). A rocker arm (14) is extended from the second end of the vertical tube towards the front wheel's direction. The vertical tube is fixed together with the rocker arm, which form the power lever. The first end of the steel wire is fastened at the end location (7) of the fork arm. The second end of the steel wire is fixed on the flywheel of the front wheel around a pulley(15) on the free end of the rocker arm. While the handlebar is moved back and forth, the free end of the rocker arm is also moved back and forth, which drives the flywheel rotate through the steel wire so as to drive the front wheel run. The hand-driven bicycle enhances its speed and brings the cyclists' body movement. C: Disclosed is a lead-out type independent suspension with multiple supporting points, comprising an upper fork arm (1), a lower fork arm (2), elastic members (3), a damper (4) and a fork arm positioning shaft (5), wherein the upper fork arm (1) and the lower fork arm (2) are A-shaped structural components, the front ends of the upper fork arm (1) and the lower fork arms (2) are respectively connected to an upper hanging point and a lower hanging point of a vehicle wheel (C) via master pins (B), the rear ends of the upper fork arm (1) and/or the lower fork arms (2) are connected to a vehicle frame in different damping manners, and the damper (4) is mounted on an upper part of the front end of the upper fork arm (1). The upper and lower fork arms of the independent suspension construct reasonable vehicle supporting shaft points and transferring components, by using a lever, a torsion bar and the principle of moment of force, enables the shaft hanging points of the upper and lower fork arms to absorb a borne elastic force by means of a retracing force and the arm of a force or by changing directions, so as to be configured that multiple points support multiple elastic members so as to realize multipoint decomposition of the force sustained by the vehicle wheel to increase an average driving speed. The increase in the number of elastic members and the reasonable arrangement thereof can lower the height of the vehicle, and further optimize the space usage, thereby improving the stability and the running smoothness of the vehicle. D: An improved bicycle frame structure, comprising a frame (1), a rear fork foot (2), a front fork foot (3) and a bottom bracket (4), the rear fork foot (2) and the front fork foot (3) being respectively fixed to rear and front ends of the frame (1), and the bottom bracket (4) being located at a lower end of the middle of the frame (1). Inner bearing positions are provided in both the rear fork foot and the front fork foot, so that a rear wheel carrier bearing (6) and a front wheel bearing (5) are respectively and correspondingly fitted in the respective inner bearing positions. The front fork foot and the front wheel bearing are fixed and connected by a front wheel hub fixing pin (11) in a penetrating manner, a front wheel hub (8) is sheathed on the front wheel hub fixing pin, and there is no need to provide corresponding bearings in the front wheel hub. The rear fork foot and the rear wheel carrier bearing are fixed and connected by a rear wheel hub fixing pin (12) in a penetrating manner, a rear wheel hub (9) is sheathed on the rear wheel hub fixing pin, and there is no need to provide corresponding bearings in the rear wheel hub. Outer bearing positions are provided on both ends of a horizontal straight tube of the bottom bracket, a crankshaft bearing (7) is sheathed on each of the outer bearing positions, a crankshaft (10) is sheathed on the outside of the crankshaft bearing, and a main shaft of the crankshaft is arranged to be penetrating the horizontal straight tube of the bottom bracket and fixedly connect two crankshafts. The frame structure simplifies the structure of a hub, reduces the difficulty of manufacturing the hub, and improves the bending resistance and torsion resistance of a crankshaft.

A

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed is a land and water flying automobile comprising a shell (3), a chassis (12) and a lower boat body (14), wherein the shell (3) is fixedly provided on the chassis (12), and the lower boat body (14) is connected under the chassis (12); a water rudder (15) and a propeller (16) are provided at the rear lower part of the chassis (12); an upper aerofoil (6) and a rotor (5) are provided at the top part of the shell (3) and fixed on a bearing frame at the centre of gravity of the machine body, and the upper aerofoil (6) is hinged to the shell (3) via a hinged shaft; a strake (10) is provided on the joining point of the shell (3), the chassis (12) and the lower boat body (14); a horizontal wing includes a stabilizer (13) and an elevator (9), respectively provided on the front end and the rear end of the machine body; twin vertical tail wings (7) are provided on two sides at the rear end of the machine body, a root part thereof being fixedly connected to the strake (10); an automobile engine (1) is provided at the front of the chassis (12), and is connected to vehicle wheels (11) and the propeller (16) via a transmission system; an aircraft engine (8) is provided at the rear end of the machine body and is connected to the rotor (5) via a transmission system; and an operating system (2) contains a hydraulic rigid mechanical operating system and a quasi-active control system. The present invention integrates the existing automobile, boat and aircraft technology, achieving a land and water flying automobile able to travel in different media. A: Disclosed are a flying motorcycle or automobile, and a flying posture adjustment method therefor. Propulsion devices and propulsion device driving apparatuses are arranged on a body of the flying motorcycle or automobile, propellers are mounted within the propulsion devices, and the propulsion device driving apparatuses control the direction of rotation of the propulsion devices. The propulsion devices comprise a left front propulsion device and a right front propulsion device symmetrically mounted at a front left side and a front right side of the body, and rear propulsion devices mounted at the rear of the body. The flying motorcycle or automobile adjusts the flying posture by means of the propulsion device driving apparatuses causing the propulsion devices mounted on the two sides and the rear of the flying device to tilt angles so as to implement steering, forward and backward movement, and left panning and right panning of the flying motorcycle. The present invention enables the flying motorcycle or automobile to constantly maintain a horizontal state during flight, may be applied to manned flight, and has a very wide range of applications. B: An electric pruner, comprising a machine body housing (28), a machine head main body provided at the front end of the machine body housing (28), and a power cord (29) provided at the back end of the machine body housing (28). A motor (1) is provided inside the machine body housing (28), the motor (1) is connected to a gearbox gear ring (3), the gearbox gear ring (3) is connected to a feed screw nut (19); the motor (1) is connected to a planetary gear (4) by means of a motor gear (2), the planetary gear (4) is fixed onto a planetary gear carrier (5), one end of the planetary gear carrier (5) is connected to a universal joint transmission block (6), a universal joint sleeve (17) is provided at the outer side of the universal joint transmission block (6); a first bearing (7) is fixed onto the planetary gear carrier (5), a first spherical bowl (9), a first ball head (10) and a second bearing (12) are respectively and sequentially fixed to a third bearing (13), a second ball head (14) and a second spherical bowl (15) which are provided on a lead screw (16); the lead screw (16) is fixed onto the machine head main body, the lead screw (16) is provided with a Hall plate (21) at the lower part of the fixing end of the machine head main body, a trigger (20) is provided at the bottom of the Hall plate (21), a magnet (18) is provided between the Hall plate (21) and the lead screw (16); the front end of the machine head main body is provided with a fixed cutter blade (24) and a movable cutter blade (25), the fixed cutter blade (24) is provided at the lower end of the movable cutter blade (25). C: A flying car, comprising a body (6) and wheels (4). First wing bays (3) and a second wing bay (5) are arranged on the body; folding wings (8) are respectively arranged in the first wing bays and the second wing bay; the folding wing comprises a first folding shaft (16), a second folding shaft (17), and a third folding shaft (18); the first folding shaft, the second folding shaft, and the third folding shaft are arranged in a sleeved manner; a motor box (20) is connected onto the third folding shaft; the motor box is arranged in a rotatable manner with respect to the third folding shaft; a propeller (19) is mounted on the motor box; a propeller drive motor is arranged in the motor box; the propeller is arranged in a folding manner with respect to propeller recesses. Therefore, when the flying car travels on the ground, the folding wings can be rapidly retracted into the first wing bays and the second wing bay, and the first folding shafts, the second folding shafts, the third folding shafts, the propellers, and the motor boxes can be tightly retracted, thereby ensuring that there will be no part of the folding wings extending out of the surfaces thereof when the flying car travels on the ground, and ensuring the safety and service life of the folding wings. D: A dust suppression vehicle, comprising a vehicle head (1), a chassis (6), a water tank (5), a sprayer (8) and a control system. The water tank (5) is disposed in the middle of the chassis (6). The sprayer (8) is located at the rear of the chassis (6). The sprayer (8) comprises a fan, a water pump (14) and a ventilator (9). The fan comprises fan blades and a fan electric motor (M1). The fan blades are arranged on a rotating shaft of the fan electric motor (M1). The fan electric motor (M1) is arranged in the ventilator (9), and the ventilator (9) is internally provided with a spray ring, that is, the spray ring is disposed inside the ventilator (9). The water pump (14) is connected to a water pump electric motor (M2). A water outlet of the water pump (14) is connected to the spray ring by means of a flexible pipe. The water outlet of the water pump (14) is connected to the water tank (5) by means of a pipeline. The ventilator (9) is located on a base (11). The front portion of the ventilator (9) is hinged to the base (11). The base (11) is rotatably connected to the chassis (6), and the base (11) is connected to a rotary electric motor (12). The rotary electric motor (12) can drive the base (11) to rotate, and the rotary electric motor (12) is disposed on the chassis (6). In this way, the adjustment of the air speed, the direction and the amount of water output is facilitated, the operator control difficulty is reduced, and the dust removal effect is improved.

C

Please select the most similar patent number from A, B, C and D. Which number is? An amphibious bicycle outer assembly frame, comprising a front foldable frame, a rear foldable frame, a front buoy, a rear buoy, a control group and a propeller; the front buoy is mounted on the front foldable frame, and the rear buoy is provided on the rear foldable frame; the propeller is mounted on the rear buoy; the control group comprises a battery pack (1), a front control cable (2), a rear control cable (3), a front frame motor (4), a rear frame motor (5), a propeller motor (6) and three control buttons (7); the front control cable (2) and the rear control cable (3) are respectively connected to the front foldable frame and the rear foldable frame; the front frame motor (4), the rear frame motor (5) and the propeller motor (6) are respectively in transmission connection with the front control cable (2), the rear control cable (3) and the propeller; the three control buttons (7) respectively controls the operation of the three motors; and the battery pack (1) supplies power to the three motors. The amphibious bicycle outer assembly frame can control the folding and unfolding of the assembly frame by means of the motors and is very conveniently, and the outer assembly frame can reduce the occupied space by folding and stowing. The amphibious bicycle outer assembly frame can realize the function of riding on water by unfolding the frame when launching, and can restore the function of a bicycle of riding on land by folding the frame to an appropriate position. A: Disclosed is a submersible propeller. The submersible propeller comprises a battery and a propeller body. The propeller body comprises a left propeller body (2) and a right propeller body (10), the front portions of the left propeller body (2) and the right propeller body (10) are connected to a waistband-type power supply battery (12) respectively by means of a left propeller body power supply cable (1) and a right propeller body power supply cable (11); and the rear portions of the left propeller body (2) and the right propeller body (10) are respectively connected to a left angle controller (5) and a right angle controller (7) by means of a left angle controller connecting cable (4) and a right angle controller connecting cable (8); and the left propeller body (2) and the left angle controller body (5), and the right propeller body (10) and the right angle controller (7) are distributed in a left-right symmetry manner. By means of the angle controllers on legs, the modes of advancing, variable-speed advancing, reversing, turning, in-situ steering, etc. can be carried out, and the whole operation process only depends on control by a diver by adjusting the included angle between thighs and calves, and does not need to be controlled by hands at all. B: A tail-extended inflatable boat, comprising: a boat body (1) provided with a left air chamber (7) and a right air chamber (8) on two sides thereof; a rudder (2) fixed between a fore cabin (6) of the boat and a foot pedal propeller arranged on a propeller supporting plate (5); foot pedals (3) arranged above a water surface and on an upper end of the boat body (1), and connected to the foot pedal propeller; a seat (4) arranged on the boat body (1). The propeller supporting plate (5) is fixed above the left air chamber (7) and the right air chamber (8) of the boat body (1), and the fore cabin (6) of the boat is arranged on an inner side of a front end of the boat body (1). The air chambers arranged on the two sides of the boat are extended on the basis of an existing inflatable boat, and the buoyancy of the extended air chambers (7, 8) is greater than the total weight of an adult, the foot pedal propeller and the propeller supporting plate (5). The foot pedal propeller is mounted on the propeller supporting plate (5), and a person rides on the foot pedal propeller with two feet alternately pedaling the foot pedals (3), enabling the inflatable boat to move back and forth easily. The rudder (2) is mounted between the foot pedal propeller and the fore cabin (6) of the boat, such that the direction of the boat can be conveniently and effectively controlled. C: A routing structure of a folding bicycle comprises a control line (1), a front frame provided with a front folding connector (21), and a back frame provided with a back folding connector (31). The front frame and the back frame are hinged to be folded together through the front folding connector (21) and the back folding connector (31), a first through hole (211) is formed in the front folding connector (21), a second through hole (311) is formed in the back folding connector (31), and a protective sleeve (5) is fixedly arranged in the first through hole (211) and the second through hole (311) in a penetrated mode. The control line (1) is arranged in the first through hole (211), the second through hole (311) and the protective sleeve (5) in a penetrated mode. The control line (1) is fixedly provided with a clamping stopping part (6), and the clamping stopping part (6) and one end, arranged in the first through hole (211) in the penetrated mode, of the protective sleeve (5) are arranged in a corresponding limiting mode. When the front folding connector (21) and the back folding connector (31) are unfolded and folded, the two ends of the protective sleeve (5) are arranged in the first through hole (211) and the second through hole (311) respectively. The control line is protected by the protective sleeve, so that the control line is prevented from being abraded, the parts, located at the position of the folding connectors, of the control line are prevented from being arched outside the folding connectors, and the folding smoothness is improved. D: An amphibious canoe comprises a canoe body (1). A sliding rail (2) is provided within the canoe body (1), a footrest (3) is fixedly provided on the sliding rail (2) and a seat (4) is slidably provided on the sliding rail (2) behind the footrest (3). A frame (5) is also provided on the canoe body (1), rockers (6) are hingedly provided on the left and right sides of the frame (5), detachable or reversible wheel assemblies (7) are respectively provided on the front side and the rear side of the frame (5), and the rockers (6) are drivingly connected to the front wheel assembly or the rear wheel assembly through a cable (8). Said canoe can be used on land and in water.

D

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed is an independent suspension system, comprising: a supporting arm (100); an upper cross arm (200) for pulling an upper portion of the supporting arm (100); a lower cross arm (300) for pulling a lower portion of the supporting arm (100); and an airbag damping support (400), the middle portion of which is arranged on the supporting arm (100), wherein the airbag damping support (400) is provided with a first airbag and a first damper on one side of the supporting arm (100), and the airbag damping support (400) is provided with a second airbag (500) and a second damper (700) on the other side of the supporting arm (100). By means of providing the airbag damping support (400), the first airbag and the second airbag (500) can be located on two sides of the supporting arm (100) so as to expand the safety distance from the first airbag and the second airbag (500) to wheels, such that the vertical motion of the vehicle can be prevented from interfering with the first airbag and the second airbag (500), and the sizes of the first airbag and the second airbag (500) are no longer limited, and the arrangement of the first airbag and the second airbag (500) enables the independent suspension system to bear a larger load. A vehicle using the suspension system is further provided. A: An airbag (10) and a folding method for the airbag (10). The airbag (10) comprises a first airbag cavity (100) and a second airbag cavity (200), the second airbag cavity (200) is arranged on a panel of the first airbag cavity (100), and when the airbag (10) is in an unfolded state, the size of the second airbag cavity (200) in a first direction (V) is smaller than the size of the first airbag cavity (100) in the first direction (V); the first airbag cavity (100) is provided with a left part (130) and a right part (140) which are arranged along a second direction (H), when the airbag (10) is in a folded state, the left part (130) and the right part (140) are folded inward to form a left covering part (1301) and a right covering part (1401), the left covering part (1301) and the right covering part (1401) each are configured to cover part of the second airbag cavity (200) to completely cover the second airbag cavity (200) from the left and right sides, the second direction (H) being different from the first direction (V). Therefore, the unfolding speed of the second airbag cavity (200) can be effectively controlled, and the second airbag cavity (200) can only be inflated and unfolded at a desired operating position, thereby improving the stability of the airbag (10) during inflation and unfolding. B: A suspension structure of a tram, comprising: a frame (100); a front axle structure (200); a rear axle structure (300); a front suspension assembly (400), comprising two supports (410) which are symmetrically distributed on the left and right, the front axle structure (200) being simultaneously connected to the two supports (410), front thrust rod structures (420) being connected between the supports (410) and the frame, the front thrust rod structures (420) being also connected between the front axle structure (200) and the frame, and front airbag assemblies (430) being mounted on the supports (410); and a rear suspension assembly (500), comprising a pair of beam structures (510) which are symmetrically distributed on the left and right. The rear axle structure (300) is connected to the middle parts of the two beam structures (510) respectively; the middle part of each beam structure (510) is also connected to the frame by means of a rear thrust rod structure (520); rear airbag assemblies (530) are mounted at the two end parts of the beam structures (510) respectively; both the rear airbag assemblies (530) and the front airbag assemblies (30) are arranged as air spring structures; a rear vibration absorber structure (540) is connected to the side part of each rear airbag assembly (530); the rear vibration absorber structures (540) are connected to the frame; and a rear stabilizer bar structure (550) is also connected between the two beam structures (510). The suspension structure of the tram has the advantages of good vibration absorbing effect and good stability. C: A pneumatic mat device, comprising a controller and at least one undulating assembly unit. A surface of the undulating assembly unit can alternate between undulation states. The undulating assembly unit comprises at least one first air bag (1), at least one second air bag (2), a first air pump (A), and a second air pump (B). The controller controls the first air pump (A) and the second air pump (B) to operate alternately. When the first air pump (A) is operating, air is drawn from the inflated second air bag (2) to inflate the first air bag (1) to be inflated, such that the first air bag (1) and the second air bag (2) are in a first undulation state during an operation period of the first air pump (A). When the second air pump (B) is operating, air is drawn from the inflated first air bag (1) to inflate the second air bag (2) to be inflated, such that the first air bag (1) and the second air bag (2) are in a second undulation state during an operation period of the second air pump (B). Alternate operations of the first air pump (A) and the second air pump (B) enable the first air bag (1) and the second air bag (2) to undulate alternately, such that the surface of the undulating assembly alternates between the undulation states. D: A cover handling tool and a cover assembly structure. The cover handling tool comprises: a first airbag part (10), a second airbag part (20), and an airflow passage structure (30) connecting the first airbag part (10) and the second airbag part (20). By means of the airflow passage structure, an internal space of the first airbag part (10) communicates with an internal space of the second airbag part (20). When the second airbag part (20) is squeezed, the volume of the first airbag part (10) is larger than that of an insertion space; when a squeezing force applied to the second airbag part (20) ceases, the volume of the first airbag part is less than or equal to that of the insertion space. Airbag parts having changeable volumes are provided, and the structural feature of the airbag parts enables a container to be connected to or separated from a cover without requiring a finger of a user to come into direct contact with the cover, thereby preventing substances inside the container engaging with the cover from being contaminated.

B

Please select the most similar patent number from A, B, C and D. Which number is? A suspension structure of a tram, comprising: a frame (100); a front axle structure (200); a rear axle structure (300); a front suspension assembly (400), comprising two supports (410) which are symmetrically distributed on the left and right, the front axle structure (200) being simultaneously connected to the two supports (410), front thrust rod structures (420) being connected between the supports (410) and the frame, the front thrust rod structures (420) being also connected between the front axle structure (200) and the frame, and front airbag assemblies (430) being mounted on the supports (410); and a rear suspension assembly (500), comprising a pair of beam structures (510) which are symmetrically distributed on the left and right. The rear axle structure (300) is connected to the middle parts of the two beam structures (510) respectively; the middle part of each beam structure (510) is also connected to the frame by means of a rear thrust rod structure (520); rear airbag assemblies (530) are mounted at the two end parts of the beam structures (510) respectively; both the rear airbag assemblies (530) and the front airbag assemblies (30) are arranged as air spring structures; a rear vibration absorber structure (540) is connected to the side part of each rear airbag assembly (530); the rear vibration absorber structures (540) are connected to the frame; and a rear stabilizer bar structure (550) is also connected between the two beam structures (510). The suspension structure of the tram has the advantages of good vibration absorbing effect and good stability. A: Provided is a rear subframe assembly, comprising a main body of the rear subframe and positioning supports, wherein the main body of the rear subframe is in a bilateral symmetry structure. The main body of the rear subframe is provided with a car body connection part at its upper part and a battery pack protection board connection part at its lower part; it is further provided respectively with a stabilizer bar installation part, an upper control arm installation part and a lower control arm installation part, the positioning supports are respectively arranged at the left and right ends of the main body of the rear subframe, and each positioning support is configured with a positioning part that fits with an external positioning part. B: A suspension system testing apparatus comprises a base frame (1), a vehicle frame (5), an excitation device (4), and multiple sets of suspension cylinders (6). The excitation device (4) and the suspension cylinders (6) are all mounted on the base frame (1). The suspension system testing apparatus further comprises a stabilization support assembly (7) mounted on the base frame (1) and universally connected to the vehicle frame (5) via a first universal connector (721). The stabilization support assembly (7) further comprises an anti-twist stabilization rod (8) mounted on the vehicle frame (5) via a second universal connector (81). The anti-twist stabilization rod (8) is pivot-connected to the vehicle frame (1) and is a telescopic rod. A universal connection is provided at the join between a guide stabilization rod (72) of the stabilization support assembly (7) and the vehicle frame (5), and the guide stabilization rod (72) can move up and down along a guide sleeve/insertion hole of a stabilization support (71), thereby ensuring that the vehicle frame (5) moves up and down but does not move back and forth or left and right. In addition, the vehicle frame (5) can roll and pitch around a spherical hinge between the guide stabilization rod (72) and the vehicle frame (5). C: A hinge-type light self-unloading farm transport vehicle comprises a front beam (1), a back beam (2), a hinge connection assembly (3), a front axle (4), a clutch (5), a front suspension frame (6), a back suspension frame (7), steel panel and spring components (8), a generator (9), and a gearbox (10). The front beam (1) is located in front of the back beam (2), and is connected to the back beam (2) via the hinge connection assembly (3). The clutch (5) is located in a flywheel housing between the generator (9) and the gearbox (10). The front suspension frame (6) is installed on the front beam (1), and the back suspension frame (7) is installed on the back beam (2). The steel panel and spring components (8) are installed on both the front suspension frame (6) and the back suspension frame (7). The hinge connection assembly (3) comprises a hinge turning plate (31), a swallow tail plate (32), an inner rectangular board (33), a pressing cover (34), a turning pin shaft (35), a left-turn hydraulic cylinder (36), a right-turn hydraulic cylinder (37), a shaft cover (38), and a center positioning shaft (39). One end of the swallow tail plate (32) is installed at a tail portion of the front beam (1), and the other end thereof is installed on the hinge turning plate (31). A terminal portion of the turning pin shaft (35) is installed with the pressing cover (34). The inner rectangular board (33) is vertically installed at an inner side of an end of the front beam (1). Each of the left-turn hydraulic cylinder (36) and the right-turn hydraulic cylinder (37) has one end installed at the hinge turning plate (31), and the other end installed on the inner rectangular board (33) via the turning pin shaft (35). The shaft cover (38) is installed at a central position of the hinge turning plate (31). One end of the center positioning shaft (39) is installed in the shaft cover (38), and the other end thereof is connected to the back beam (2). The hinge-type light self-unloading farm transport vehicle adopts a front-bridge dual-tire structure to ensure stability, has a reliable hinge assembly, and stable and reliable clutch and spring and steel plate on a suspension frame. D: Disclosed is an independent suspension system, comprising: a supporting arm (100); an upper cross arm (200) for pulling an upper portion of the supporting arm (100); a lower cross arm (300) for pulling a lower portion of the supporting arm (100); and an airbag damping support (400), the middle portion of which is arranged on the supporting arm (100), wherein the airbag damping support (400) is provided with a first airbag and a first damper on one side of the supporting arm (100), and the airbag damping support (400) is provided with a second airbag (500) and a second damper (700) on the other side of the supporting arm (100). By means of providing the airbag damping support (400), the first airbag and the second airbag (500) can be located on two sides of the supporting arm (100) so as to expand the safety distance from the first airbag and the second airbag (500) to wheels, such that the vertical motion of the vehicle can be prevented from interfering with the first airbag and the second airbag (500), and the sizes of the first airbag and the second airbag (500) are no longer limited, and the arrangement of the first airbag and the second airbag (500) enables the independent suspension system to bear a larger load. A vehicle using the suspension system is further provided.

D

Please select the most similar patent number from A, B, C and D. Which number is? An air vent mechanism without front blades and an air venting method thereof. The method comprises the following steps: 1. an initial airflow from an air vent passing through an airflow door (4) such that the airflow undergoes a first adjustment, the airflow door (4) adjusting the initial airflow to be directed upward or downward; 2. when the adjusted airflow passes through a rib structure (5.1), guiding the airflow towards an edge of a housing (2, 3); and 3. causing the guided airflow to move towards the inside of the housing (2, 3), the housing being arc-shaped or circular, such that the airflow is deflected off the housing (2, 3) to achieve a final air vent angle of the airflow. The method omits front blades while still permitting an airflow to be easily adjusted upward, downward, leftward or rightward, thereby avoiding the issue in which front blades become loose as a result of frequent oscillations, and preventing air speed and air volume from being affected by airflow-blocking of the front blades. A: A miniature fan comprising a housing and a support frame (2) used for supporting the housing, also comprising a regulating member (1) fitted with the support frame (2) and used for regulating wind direction. Because the regulating member (1) used for regulating the wind direction is arranged on the support frame (2), and the regulating member (1) is fitted with the support frame (2), the wind direction of the miniature fan can be regulated via the regulating member (1), thereby facilitating use for a user. B: An air conditioner indoor unit and an air conditioner. The air conditioner indoor unit comprises a housing (1), and a first fan (2), a heat exchanger (3), and a second fan (4) disposed in the housing (1); the housing (1) is provided with a first air port (11) and a second air port (12); the first fan (2), the heat exchanger (3), and the second fan (4) are sequentially disposed in a direction from the first air port (11) to the second air port (12). Air flows in two wind directions can both exchange heat with the heat exchanger, and different operating modes of the air conditioner indoor unit can be matched with the above different wind directions according to the characteristics of warm and cool air and the positions of the first air port and the second air port, i.e., matched with one wind direction during cooling and the other wind direction during heating; thus, better comfort effect and higher temperature adjustment efficiency can be provided during both cooling and heating; moreover, under the action of the wind force of the two fans, the air volume is great, the heat exchange efficiency is high, and the temperature adjustment efficiency is further improved, thereby greatly improving user experience. C: An air outlet structure, comprising a deflector rod assembly (5) and a front-row blade and a rear-row blade which are installed on a housing (1). One of the front-row blade and the rear-row blade is controlled by shifting the deflector rod assembly (5) up and down, and the other one of the front-row blade and the rear-row blade is controlled by rotating the deflector rod assembly (5). According to the air outlet structure, opening and closing the front-row blade and the rear-row blade are independently controlled by means of different actions of a deflector rod (53), preferably, opening and closing of an air door may also be independently controlled, for example, up-down rotation of horizontal blades of a front-row blade assembly is achieved by shifting the deflector rod assembly (5) up and down, left-right rotation of vertical blades of a rear-row blade assembly is achieved by rotating the deflector rod assembly (5), and opening and closing of the air door are achieved by plugging and unplugging the deflector rod assembly (5), such that mutual influence is avoided, and the compact arrangement of a space is achieved. D: An air swinging assembly, provided in an air duct of a bladeless fan, the air duct being in communication with an air outlet; the air swinging assembly comprises movable fins (3) located at one side of the air outlet, and the movable fins (3) are rotatably connected to the air duct by means of a main shaft (32); the movable fins (3) are synchronously driven by a driving assembly to swing up and down so as to adjust the swing angle of the movable fins (3); and air is discharged from the air outlet after the air direction is changed by the movable fins (3). A bladeless fan comprising the air swinging assembly. The bladeless fan has an air swinging function by means of adding the air swinging assembly, and expands an air blowing range.

C

Please select the most similar patent number from A, B, C and D. Which number is? A vehicle interior air dehumidifying system, comprising a dehumidifying apparatus (10), an air quality monitoring apparatus (30), and a master controller (20). The air quality monitoring apparatus (30) is provided in the interior of a vehicle, electrically connected to the master controller (20), and used for monitoring a quality parameter of the air inside the vehicle, acquiring monitoring data, and transmitting the monitoring data to the master controller (20). The master controller (20) receives the monitoring data, generates, on the basis of the monitoring data, a control instruction, and transmits same to the dehumidifying apparatus (10). The dehumidifying apparatus (10) is provided in the interior of the vehicle, electrically connected to the master controller (20), and used for dehumidifying the air inside the vehicle on the basis of the control instruction received. The present system dehumidifies the air inside the vehicle via the dehumidifying apparatus when the air inside the vehicle is humid, thus providing a comfortable driving environment inside the vehicle. A: An electromagnetic radiation monitoring system for use within a vehicle, comprising an electromagnetic radiation monitoring device (20), a prompting device (30) and a main controller (10), wherein the electromagnetic radiation monitoring device (20) is arranged inside an vehicle, electrically connected to the main controller (10), and used for monitoring electromagnetic radiation intensity within the vehicle, acquiring monitoring data and sending the monitoring data to the main controller (10), the main controller (10) is used for receiving the monitoring data, and sending prompting information to the prompting device (30) according to the monitoring data; the prompting device (30) is electrically connected to the main controller (10), and used for receiving the prompting information, and providing prompting according to the prompting information. The present invention allows a user to monitor the intensity of electromagnetic radiation in a vehicle, and be informed of the electromagnetic radiation intensity inside of the vehicle in a real-time manner. B: A vehicle negative ion air purifier, comprising a purifier main body (1), one side of a lower end of the purifier main body (1) having multiple air inlets (2), an air humidity detector (7), an air quality detector (8), a touch screen (9) and a master switch (10) are provided at an upper end of the air inlets (2), a control chip (11) is internally provided at one side of an upper end of the purifier main body (1), a support base (13) is internally provided at a bottom end of the purifier main body (1), a drive motor (15) is provided at an upper end of the support base (13), a fan (16) is provided at an upper end of the drive motor (15), a fan outlet (18) is provided at one side of the fan (16), one end of the fan outlet (18) is connected to a humidifier (19), a negative ion generator (20) is provided at two sides of the humidifier (19), an air outlet (21) is provided at one side of the humidifier (19), one end of the air outlet (21) being connected to an essential oil aromatherapy box (22), and a bottom end of a support frame (23) is provided with a suction cup (26), used to fix the purifier. The present purifier not only can purify air, but also can adjust degree of air humidity, decreasing passenger fatigue, and is stably mounted in a vehicle. C: Disclosed is an automobile display system (100), comprising an automobile interior control circuit (10) and a display device (20) electrically connected to the automobile interior control circuit (10), wherein the display device (20) comprises a first display screen (210) provided in the middle of a steering wheel (200), and the automobile interior control circuit (10) controls a display interface of the first display screen (210) so same maintains a horizontal display state. With the display device (20) being provided on the steering wheel (200) and being able to, when the steering wheel (200) is rotated, keep the display interface of the display device (20) in a display state with a certain angle, such as the horizontal display state, the observation of a driver is facilitated. D: Provided is a health protection system for train occupants in a polluted environment in a train, comprising a basic data acquisition module, a train external air quality prediction module, a train internal air quality prediction module, and a ventilation strategy formulation module. The basic data obtaining module obtains basic data; the train external air quality prediction module predicts the external air quality of a train; the train internal air quality prediction module predicts the internal air quality of the train; the ventilation strategy formulation module formulates a ventilation strategy and protects the health of train occupants. Also provided is a method of the health protection system for train occupants in a polluted environment in a train. According to obtained train internal and external air quality data, train internal and external air quality data information is predicted and a ventilation strategy is formulated; therefore, the corresponding ventilation strategy can be formulated for the train internal and external air quality data, so as to protect the health of train occupants, and high reliability and high accuracy are achieved.

B

Please select the most similar patent number from A, B, C and D. Which number is? A self-adaptive cabin air conditioning system, a control method therefor, and a mobile vehicle having the system. The mobile vehicle (3, 3', and 3") having the self-adaptive cabin air conditioning system comprises: a mobile vehicle body (31), accommodating at least one mobile vehicle cabin (33, 33', and 33"); and at least one self-adaptive cabin air conditioning system (1, 1', and 1"). The self-adaptive cabin air conditioning system further comprises: a temperature collecting device (11, 11', and 11"); a temperature control device (13, 13', and 13"); and a microprocessor (15 and 15") for receiving a temperature signal. A: An automatic displacement device for a movable vehicle. The movable vehicle is used for carrying at least one weight. The movable vehicle comprises a body. The automatic displacement device comprises: at least one weight fixer, used for carrying the weight; at least one actuator, disposed on the body, and mechanically connected to the weight fixer and used for moving the weight fixer; at least one stabilization controller, in signal connection with the actuator, and comprising at least one sensing assembly used for sensing the inclination state of the body and sending at least one inclination state signal; and at least one control assembly, used for computing the inclination state and driving the actuator to move the weight fixer so as to perform compensation according to the inclination state signal. B: A freely movable apparatus (3) and an ultrasonic apparatus. The freely movable apparatus (3) has a first moving element (33) and a second moving element (34). The first moving element (33) and the second moving element (34) are disposed to be rotatable on a support element (31). When a user applies a force on a connecting base (39) or connecting arms (35, 36), the positions of the first moving element (33) and the second moving element (34) on the support element (31) can be changed, such that the first moving element (33) and the second moving element (34) can rotate, according to the applied force, by different angles or move away from each other or move towards each other on the support element (31) The angles between the connecting arms (35, 36) and the connecting base (39) and between the connecting arms (35, 36) and the moving elements (33, 34) can vary according to the applied force, such that the connecting base (39) can move and rotate to multiple positions in a plane. The structure can realize free multidirectional movement in a horizontal plane and is simple, such that the compactness and linkage flexibility of an apparatus are improved. C: Disclosed is an intelligent in-vehicle air conditioning system. The intelligent in-vehicle air conditioning system comprises a vehicle body (1) and an in-vehicle air conditioner (2). An interior of the vehicle body (1) is provided with multiple air outlets (10) in communication with air outlets of the in-vehicle air conditioner (2) and arranged symmetrically on two sides of a top portion of the vehicle body (1). Bladeless fans (11) are provided on two sides of the interior of the vehicle body under the air outlets (10). The system further comprises a solar cell panel (12) on an upper end of the vehicle body (1), a control module (3) used to control operation of the in-vehicle air conditioner (2) and the bladeless fans (11), a flow speed detection module (4) used to detect an airflow speed in the vehicle body (1), a temperature detection module (5), a micro-processor (6) used to process data from the flow speed detection module (4) and the temperature detection module (5) and send a result to the control module (3), and a power supply switching module (7). The system rapidly distributes cool air by means of the bladeless fans (11), and increases the airflow speed in the vehicle to bring superior comfort. In addition, after the flow speed detection module (4) and the temperature detection module (5) perform detection, the micro-processor (6) processes the detected information and transmit a result to the control module (3) to perform intelligent adjustment on the in-vehicle air conditioner (2) and the bladeless fans (11), thus realizing a highly intelligent system. D: A floating apparatus (3) and an ultrasonic device. A first moving member (33) and a second moving member (34) are configured to reciprocate in an arc-shaped or circular trajectory on a support member (31). Meanwhile, both ends of lift arms (35, 36) are hingedly connected to moving members (33, 34) and a connection base (39), respectively. When a user applies force to the connection base (39) or the lift arms (35, 36), the positions of the first moving member (33) and the second moving member (34) on the support member (31) can be changed, so that the first moving member (33) and the second moving member (34) are distant from and get close to each other on the support member (31) according to the stress in the arc-shaped or circular trajectory. Meanwhile, the angle between the lift arms (35, 36) and the connection base (39), and the moving members (33, 34) can also be changed according to the stress, so that multi-position movement and rotation is achieved for the connection base (39) in a plane. Meanwhile, the lift arms (35, 36) have the lift function, so that the spatial floating in horizontal and vertical directions can be achieved by combining other components. The structure is more simplified while achieving multi-azimuth floating in horizontal and vertical directions, and improves the compactness of the apparatus, and the linkage flexibility is better.

C

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed are a nut and lead screw type opening and closing mechanism for an automatic door, an automatic vehicle door, and a vehicle. The nut and lead screw type opening and closing mechanism for an automatic door comprises a driving device (10), a lead screw (20), a nut push block (30), and a push rod (40), wherein the driving device (10) is fixedly connected to a vehicle door (100), the lead screw (20) is rotatably mounted on the vehicle door (100), the nut push block (30) is sheathed on the lead screw (20), a first end of the push rod (40) is hinged to the nut push block (30), a second end of the push rod (40) is hinged to a vehicle body (200), and the driving device (10) drives the lead screw (20) to rotate so as to enable the nut push block (30) and the push rod (40) to move in a reciprocating linear manner along the lead screw (20), so that the push rod (40) drives the vehicle door (100) to open or close relative to the vehicle body (200). A: Provided is a deforming aircraft (100), comprising a fuselage (20) and a frame (30) connected onto the fuselage; the fuselage (20) comprises a drive mechanism (26); the frame (30) comprises a main support arm (31), a crossbar (33), and a helical power mechanism (34); the main support arm (31) is connected to the drive mechanism (26) of the fuselage (20); the crossbar (33) is connected to the main support arm (31); the helical power mechanism (34) is mounted on the crossbar (33); the drive mechanism (26) comprises a leadscrew (261), at least two nuts (262, 263) screwed onto the leadscrew (261), and a nut adapter (265) sleeved on one of said nuts; the at least two nuts (262, 263) are connected to each other; the main support arm (31) is connected to the nut adapter (265); thus the overall dynamic stiffness is increased, the dynamic stiffness of the deforming aircraft during both deformation and flight is satisfactory, flight performance is improved, and costs are reduced. B: Disclosed are an axial drive mechanism and an electromechanical device. The axial drive mechanism comprises a drive motor, a ballscrew mechanism, and a loading component. The drive motor comprises a motor shaft extending along a first direction. The ballscrew mechanism comprises a screw extending along the first direction, and a nut sleeved on the screw. The loading component is movably arranged along the first direction. One of the screw and the nut is disposed on the motor shaft to rotate with the motor shaft, and the other is fixedly connected to the loading component to drive the loading component to move along the first direction. On the one hand, the axial drive mechanism provided by the present invention can reduce the size of space occupied by the axial drive mechanism, which facilitates achieving the miniaturization of the axial drive mechanism; on the other hand, the axial drive mechanism can reduce the inertia of the axial drive mechanism to improve the driving accuracy. C: Provided are an automobile side door electric opening and closing device and an automobile, the opening and closing device comprises a gear box (1), a lead screw (2), a nut (3) and a driving unit (4), the driving unit (4) is connected with the gear box (1), the periphery of the lead screw (2) is sleeved with the nut (3), one end of the lead screw (2) is fixedly connected with a vehicle body, the other end of the lead screw (2) penetrates through the gear box (1), and the nut (3) on the periphery of the lead screw (2) is located in the gear box (1); a gear transmission mechanism is arranged in the gear box (1), the driving unit (4) is connected with the nut (3) through the gear transmission mechanism; the gear box (1) and the driving unit (4) are both installed in a vehicle door; the driving unit (4) drives the nut (3) to rotate through the gear transmission mechanism so as to drive the lead screw (2) to do front-back reciprocating motion, and electric opening or closing of the automobile side door is achieved. D: A linkage swing head structure, comprising: a base (1), a driving mechanism (2), and a main shaft (3). The driving mechanism (2) comprises: a power mechanism (2-1), a connecting rod mechanism (2-2), and a lead screw (2-3); a cutter (7) is fixed at one end of the main shaft (3), and the main shaft (3) is fixed at one end of the connecting rod mechanism (2-2); the end of the connecting rod mechanism (2-2) at which the main shaft (3) is fixed is sleeved on a support bearing (4); the connecting rod mechanism (2-2) can rotate around the support bearing (4); the support bearing (4) is fixed on the base (1); the other end of the connecting rod mechanism (2-2) is movably connected to the lead screw (2-3); an output end of the power mechanism (2-1) is connected to one end of the lead screw (2-3); the connecting rod mechanism (2-2) adjusts an rotation angle of the main shaft (3) by sliding on the lead screw (2-3). The driving mechanism is distant from the main shaft and has a small interference range to the main shaft; the main shaft can realize automatic continuous division and can also perform linkage machining of small cutting amount, and when the cutter rotates by the same angle, the size of the device is reduced; the structure is simple and manufacturing costs are low.

C

Please select the most similar patent number from A, B, C and D. Which number is? A driving device (100) for a vehicle sunroof, comprising a motor (10), a transmission mechanism connected to the motor (10), and an output shaft (30) that rotates when driven by the transmission mechanism. The periphery of the output end of the output shaft (30) is integrally provided with multiple teeth (31); the multiple teeth (31) are used to drive a sunroof to move back and forth; a through hole (50) running through the output shaft (30) in the axial direction is provided in the output shaft (30); the through hole (50) comprises a first recess hole (51), a middle hole (52), and a second recess hole (53) that are communicated in sequence; the first recess hole (51) is adjacent to the input end of the output shaft (30); the middle hole (52) is a non-circular hole; the second recess hole (53) is adjacent to the output end of the output shaft (30); the shapes and/or sizes of the second recess hole (53) and the middle hole (52) are different, and the lateral size of at least one of the first recess hole (51) and the second recess hole (53) is not less than the minimum lateral size of the middle hole (52); the output shaft (30) protrudes radially at a substantially central position to form an annular protrusion (54); the middle hole (52) is formed in the annular protrusion (54). A: Disclosed is a humanoid robot intelligent motor apparatus, comprising a tail cover (10), a shell (20), a first drive motor and deceleration gear set (30), a second drive motor and deceleration gear set (40), a first angle sensor (50), a second angle sensor (60) and a control circuit (70). The first drive motor and deceleration gear set (30) comprises a first motor (31) and a first deceleration mechanism. The first motor (31) is engaged with an input gear (32) of the first deceleration mechanism. An output shaft (33) of the first deceleration mechanism outputs a first rotary power. The first angle sensor (50) is arranged at an output shaft of the first drive motor and deceleration gear set (30), and is used for sensing the first rotary power output by the corresponding output shaft (33). The second drive motor and deceleration gear set (40) comprises a second motor (41) and a second deceleration mechanism. The second motor (41) is engaged with an input gear (42) of the second deceleration mechanism. An output shaft (43) of the second deceleration mechanism outputs a second rotary power. A second angle sensor (60) is arranged at an output shaft of the second drive motor and deceleration gear set (40), and is used for sensing the second rotary power output by the corresponding output shaft (43). The motor apparatus has the capability of providing two degrees of freedom. B: Disclosed is an electrically operated valve capable of quickly achieving reliable switching between multiple flow paths, the electrically operated valve comprising a driving mechanism, an executing mechanism and a valve body assembly, wherein the driving mechanism comprises a bushing (53) and an output shaft (51) located in the bushing (53), the executing mechanism comprises a valve stem (1) connected to the output shaft (51) and a valve core (2) connected to the valve stem (1), and the valve core (2) is provided with a first flow channel (21) and a second flow channel (24); the valve body assembly comprises a valve body (3) and a valve seat (4), the bushing (53) is fixed to the valve body assembly in a sealed manner and forms a space isolated from the outside, the output shaft (51) and a connecting portion between the valve stem (1) and the output shaft (51) are located in this space, the valve stem (1) is not connected to the outside, the valve body (3) has a cavity (31), four through holes (32) and a plug port (34), the through holes (32) and the plug port (34) are circumferentially distributed at intervals, the plug port (34) is provided between adjacent through holes (32), and the valve seat (4) is provided with communicating holes (41) in communication with the corresponding through holes (32); and the circumferentially adjacent through holes (32) are in communication in pairs by the flow channels of the valve core (2) respectively, and the vale stem (1) drives the valve core (2) to rotate so as to switch the two mutually communicating through holes (32) and cut off the two through holes (32) circumferentially adjacent to the plug port (34). C: A spur-type vehicle tire energy recovery assembly comprises a hub (1), a tire (2), an output shaft (3), a transmission mechanism (5), and multiple energy acquisition devices (4). The output shaft (3) is rotatably connected to the hub (1), and the two are coaxially disposed. The energy acquisition devices (4) comprise a first gear (41) rotatably connected to the hub (1), and a rack (42) capable of sliding in a radial direction of the hub (1). The first gear (41) meshes with the rack (42), and one end of the rack (42) abuts an inner wall of the tire (2). The transmission mechanism (5) comprises a planetary gear set and a second gear (51). The planetary gear set comprises an outer teeth ring (52), a planetary gear (53), a planetary carrier (54), and a sun gear (55). The sun gear (55) is connected to the output shaft (3). The planetary carrier (54) is fixedly connected to the hub (1). Gear teeth (521) are disposed at the outer circumference of the outer teeth ring (52). The gear teeth (521) mesh with the second gear (51). The second gear (51) is fixedly connected to the first gear (41), and the two are coaxially disposed. The first gear (41) and the rack (42) of the energy acquisition devices (4) mesh to convert linear motion of compression and deformation of the tire (2) into rotational motion of the first gear (41), and then power of the multiple energy acquisition devices (4) is transmitted to the output shaft (3) via the transmission mechanism (5), thereby completing energy recovery from deformation of a tire (2). D: A drive device, comprising a motor (10) and a gear box (20) connected to the motor. The gear box comprises a housing (30), a transmission mechanism (40) provided in the housing, and a cover plate (50) individually formed and assembled to the housing. The transmission mechanism comprises an output member (42). The output member at least partially protrudes from the top surface of the cover plate. A retaining wall (53) arranged opposite the output member is formed on the cover plate. A cable is arranged between the retaining wall and the output member, and is transmittingly engaged with the output member. Also disclosed is a vehicle sunroof.

D

Please select the most similar patent number from A, B, C and D. Which number is? Provided are an embedded outer rotor electric motor direct-drive lawnmower drive wheel (9) and a lawnmower; the drive wheel (9) comprises a wheel side cover I (11), a wheel side cover II (12), and a drive wheel body assembled from a wheel body (2) and sandwiched between the wheel side cover I (11) and the wheel side cover II (12); the wheel side cover I (1), wheel side cover II (12), and wheel body (2) define a cavity (3); an outer rotor motor (4) is mounted within the cavity (3); the outer rotor part of said outer rotor motor (4) is fixedly arranged opposite the drive wheel body; the inner stator part of said outer rotor motor (4) has a fixed shaft (41) extending out of the wheel side cover I (11) to outside the drive wheel body; the wheel side cover I (11) is provided with a shaft bore I (111) used for causing the fixed shaft (41) to protrude outward. The drive wheel (9) has the outer rotor motor (4) mounted inside the drive wheel (9), and the outer rotor motor (4) directly drives the drive wheel (9) of the lawnmower, thus transmission is accurate and reliable, and the space inside the lawnmower is more reasonable. A: Disclosed is a lawn mowing machine, comprising a machine body (10) and a lawn mowing mechanism (20), wherein the machine body (10) comprises two driving wheels (131), two driven wheels (132), a power mechanism (12), and a machine frame (11); the power mechanism (12) comprises a power supply device (121) and two electric motors (122) connected to the power supply device (121); the power supply device (121) is arranged on the machine frame (11) and extends in the direction from a rear end part (112) to a front end part (111) of the machine frame (11); the electric motors (122) are symmetrically arranged on two sides of the rear end part (112) of the machine frame (11); each of the driving wheels (131) is correspondingly arranged on each of the electric motors (122) in a drivable manner; the driven wheels (132) are symmetrically arranged on two sides of the front end part (111) of the machine frame (11) correspondingly, thus allowing the driving wheels (131) and the driven wheels (132) to match each other and so support the machine frame (11) to a preset height; and the lawn mowing mechanism (20) is arranged on the machine frame (11) and is kept in a lower space of the machine frame (11). By means of the arrangement, it can be guaranteed that the center of gravity of the lawn mowing machine is located in the middle of the lawn mowing machine by adjusting the balance weight of the lawn mowing machine, and the cruising ability of the lawn mowing machine is improved. B: A drive wheel set, comprising a common shaft (10) and at least two external rotor motors (20) installed on the common shaft. External rotors (22) of the external rotor motors form drive wheels of the drive wheel set. Also disclosed are a vertical-type wire storage frame, a swing-type wire storage frame, a guide wheel frame, a traction mechanism and a multi-path conveying mechanism using the present drive wheel set. The present drive wheel set is small in size, occupies less space, and is suitable for a situation wherein a plurality of motors need to be driven but sufficient space is lacking. C: A volute centrifugal fan provided with a permanent magnet brushless motor system, said fan comprising a volute (1), an outer rotor motor (2) mounted within the volute (1) via a support, and an impeller (3) externally sleeved on the outside of the outer rotor motor (2). The impeller (3) is located within the volute (1), the impeller (3) is connected to the outer rotor motor (2), the volute (1) consists of a spiral plate (4) and side plates (5) located on two sides of the spiral plate (4), air inlets (6) are arranged on the side plates (5) on the two sides, one side of the volute (1) is provided with an air outlet (7), a central position of the air outlet (7) is a horizontal plane (8), an opening (9) is arranged on a portion of the spiral plate (4) located above the horizontal plane (8), a bridge arch-type heat sink (10) matched with the opening (9) is mounted at the position thereof, heat dissipation ribs (15) of the bridge arch-type heat sink (10) are sunk via the opening (9) into air passages (16) formed between the volute (1) and the impeller (3), and the bridge arch-type heat sink (10) is closely fitted with a surface of the spiral plate (4). The volute centrifugal fan provided with the permanent magnet brushless motor system changes a heat dissipation effect of a driver in step with changes to a centrifugal fan load, the bigger the load, the better the heat dissipation effect of the driver, thereby ensuring that the driver is in a low temperature operating state, increasing the operational efficiency of the driver, and extending the service life of the driver. D: Disclosed is a fan, comprising a volute (1), a wind wheel (2), an external rotor motor (3), and a mounting support (4), wherein the centre of the volute (1) is provided with a cavity (10), the two sides of the volute (1) are respectively provided with an air inlet (11), moreover, the volute is provided with an air outlet (12), both the air inlets (11) and the air outlet (12) are in communication with the cavity (10); the wind wheel (2) is located inside the cavity (10); the external rotor motor (3) is mounted outside the volute (1) and at the air inlets (11) of the cavity (10) via the mounting support (4), a shaft extension end (30) of the external rotor motor (3) extends into the cavity (10) to connect to the wind wheel (2), and the external rotor motor (3) and the wind wheel (2) are respectively located on both sides of the mounting support (4). The fan is simple in structure and has good stability.

A

Please select the most similar patent number from A, B, C and D. Which number is? A wheel-track magnetic suspension vehicle system comprises a U-shaped channel and a magnetically-suspended vehicle therein. Arranged at the bottom of the U-shaped channel are two permanent magnet roadbeds (8, 22) and one wheel roadbed (20). Provided on the two permanent magnet roadbeds (8, 22) is a permanent magnet A (7, 21); the magnetically-suspended vehicle comprises a compartment body, a chassis, a front drive wheel (4), and a rear drive wheel. Two sides of the chassis are provided with a permanent magnet B (6, 19). Permanent magnet B (6, 19) and permanent magnet A (7, 21) are vertically aligned and have the same polarity. The front drive wheel (4) and rear drive wheel are arranged on the wheel roadbed (20). The two sides of the top part of the U-shaped channel are equipped with power supply line banks (2, 15). The two sides of the compartment body are equipped with power pickup cables (1, 14). Said power pickup cables (1, 14) contact the power supply line banks (2, 15) and provide power to the magnetically-suspended vehicle. The invention also comprises the application of the wheel-track magnetic suspension vehicle system. A: Disclosed are a stiffness gain mechanism (23) for a magnetic suspension bearing (20), a magnetic suspension bearing (20) comprising the stiffness gain mechanism (23), and a blood pump. The magnetic suspension bearing (20) comprises a stator (21) with stator teeth (211) and a rotor (22) arranged in the stator (21). The stiffness gain mechanism (23) comprises: a rotor permanent magnet (231), a stator permanent magnet (232), and an axial dynamic body (233). The rotor permanent magnet (231) and the rotor (22) of the magnetic suspension bearing (20) form a rotor assembly, and the rotor assembly has an asymmetric structure relative to a main plane (P) of the rotor (22); and the stiffness gain mechanism (23) is configured such that the stator permanent magnet (232) produces a radial attraction on the rotor permanent magnet (231), the axial dynamic body (233) produces an axial repulsive force on the rotor permanent magnet (231), and the magnitude of the axial repulsive force is able to change with the change of the axial distance between the axial dynamic body (233) and the rotor permanent magnet (231). The stiffness gain mechanism (23) can increase the torsional stiffness of the rotor (22) of the magnetic suspension bearing (20) and contribute to the miniaturization of the magnetic suspension bearing (20). B: An electromagnetic levitation train track system and a levitation electromagnet (9), belonging to the field of railway transport, involve an economical and efficient high-speed electromagnetic levitation train track technical solution, characterized in that tracks (5) are arranged on two sides of a railbed (1) or a track beam, a magnetic levitation train (20) runs on the tracks, traction guide electromagnets (22) are horizontally arranged on support arms (19) on two sides of the magnetic levitation train, the magnetic pole directions of the traction guide electromagnets are horizontally arranged, linear electric motor stators (13) are horizontally arranged at the positions, corresponding to the traction guide electromagnets, of the tracks, each of the linear electric motor stators is composed of a stator coil (16) and a stator iron core (15), the magnetic pole directions of the stator iron cores are horizontally arranged, working faces of the traction guide electromagnets and working faces of the stator iron cores are arranged in parallel and spaced by a certain magnetic gap to form iron core linear electric motors, the levitation electromagnet is arranged at the bottom of the magnetic levitation train, and armature plates (6) are horizontally arranged at the positions, located above the levitation electromagnet, at the bottom of the tracks with a certain magnetic gap apart. The effects of simplified structure, good levitation stability, high levitation capacity and low electromagnetic resistance are achieved. C: Disclosed is an axial permanent magnetic suspension bearing having micro-friction or no friction of the pivot point, comprising a support bearing (4) provided on a shaft serving as vertical, and a permanent magnetic suspension bearing (3) provided on the vertical shaft. The permanent magnetic suspension bearing (3) comprises a stator pull-push magnet (31) provided on a stator (1) and a rotor pull-push magnet (32) correspondingly provided on a rotor (2) by means of a soft magnetic material base (322) and axially separated from the stator pull-push magnet (31) to form a pull-push magnetic circuit. The stator pull-push magnet (31) and the rotor pull-push magnet (32) are respectively composed of two or more than two annular permanent magnets provided as radially closely fitting and with magnetic poles alternating in the radial direction, and upper and lower annular permanent magnets correspondingly in the same radial position have the same magnetic strength and inverse polarity. The stator pull-push magnet (31) and the rotor pull-push magnet (32) are radially spaced from the surface of the vertical shaft near an annular surface of the annular permanent magnets of the vertical shaft that is near the vertical shaft. The present invention has small magnets, is good to manufacture, is good to install, and has a high radial restoring force, while the force of attraction is great and frictional force is reduced by 98%. D: A mixed-type magnetic levitation thrust bearing, the mixed-type magnetic levitation thrust bearing comprising a ring-shaped central iron core (1) and outer iron cores (2) disposed at two ends of the central iron core (1), an end of an outer iron core (2) facing the central iron core (1) being provided with a ring-shaped groove (3), each ring-shaped groove (3) having disposed therein an excitation winding, and the central iron core (1) having embedded therein a permanent magnet (4); the mixed-type magnetic levitation thrust bearing can decrease bearing dimensions, lowering production costs.

B

Please select the most similar patent number from A, B, C and D. Which number is? A voltage control method. A train traveling speed can be acquired; a target transformation ratio corresponding to the train traveling speed is determined according to correspondences between train traveling speeds and transformation ratios, the transformation ratio being a ratio of an input voltage to an output voltage; an input voltage is then transformed according to the target transformation ratio to obtain an output voltage, the output voltage being used for driving a train to travel. The correspondences between train traveling speeds and transformation ratios are obtained according to correspondences between train traveling speeds and train traction forces at different transformation ratios. By means of the method, the most suitable transformation ratio can be provided according to a traveling speed of a maglev train, thereby increasing the traction force of the maglev train and improving running efficiency. A: A vehicle braking method and device (200), and a train. The braking method comprises: obtaining the distance between a vehicle and a front vehicle (101); providing an alarm if the distance is smaller than or equal to a first threshold (102); receiving a first braking instruction triggered by a user, and braking the vehicle at a first preset deceleration according to the first braking instruction, wherein the first threshold is obtained according to the sum of a target idling stopping distance and an emergency braking distance, the target idling stopping distance is obtained according to at least one of a first idling stopping distance and a second idling stopping distance, the first idling stopping distance is the traveling distance of the vehicle in the process of obtaining the distance between the vehicle and the front vehicle, the second idling stopping distance is the traveling distance of the vehicle in the process of the user triggering the first braking instruction, and the emergency braking distance is the traveling distance for braking the vehicle at the first preset deceleration (103). The beneficial effects are that: a braking threshold is determined by considering the distance measuring capacity and the braking performance of a train, the rear-end collision risk with a front vehicle can be effectively reduced, and the running safety of the train is improved. B: A train speed limit control method and device. The train speed limit control method comprises: detecting whether instability occurs during travelling of a train (S201, S301, S401, S501); if it is detected that instability occurs during travelling of the train, braking the train to limit the train speed to a first speed for traveling (S202, S302, S402, S502). The train speed limit control method implements automatic speed limit control during travelling of a train. The application of the train speed limit control method to train travel control can reduce the labor intensity of the driver, and automatically and timely limit the train speed when instability occurs during traveling of the train, thereby effectively preventing train travel safety from being affected by the driver's negligence. C: A maglev train linear motor power supply circuit. Two sides of each levitation chassis are provided with linear motors. The linear motors on the same sides of levitation chassises on the same train section are connected to each other in series. The linear motors connected in series are divided into series units equal in amount. Series-parallel switch devices are disposed between the series units to achieve series-parallel switching of the series units. Also disclosed a power supply method for the maglev train linear motor power supply circuit. When a train starts to accelerate, the series-parallel switch devices are in a series position, and the series units operate in a series manner; when the train accelerates to a set speed, the series-parallel switch devices are in a parallel position, and the series units operate in parallel manner. The power supply circuit and the power supply method ensure both high-current tractive capacity for a train starting to accelerate and the requirement on high voltage of the linear motors when the train is in high-speed operation, and reduces the temperature rise of the linear motors. D: A train overspeed protection method and device, the method comprising: when emergency braking is triggered for a train, obtaining an initial speed limit location point for each speed limit region from among a preset number of speed limit regions, and obtaining a first speed limit value corresponding to each initial speed limit location point so as to obtain a plurality of first speed limit values (S11); obtaining a current traveling location point of the train and a corresponding second speed limit value, and obtaining a current traveling speed of the train (S12); determining a plurality of deceleration speeds of the current traveling speed relative to each first speed limit value, selecting a deceleration speed from among the plurality of deceleration speeds which satisfies preset conditions, and setting the initial speed limit location point corresponding to the deceleration speed which satisfies the preset conditions as a target speed limit location point (S13); determining an emergency braking speed on the basis of a relative deceleration speed of the second speed limit value relative to the first speed limit value corresponding to the target speed limit location point (S14); performing overspeed protection on the train according to the emergency braking speed (S15). The method may effectively improve the accuracy of emergency braking speed calculation, reduce the calculation cycle, improve the traveling safety and efficiency of trains, and improve travel experience for users.

C

Please select the most similar patent number from A, B, C and D. Which number is? A vehicle-mounted refrigerator having an emergency starting function, comprising a refrigerator body (1). An anti-skid bottom plate (2) is fixedly mounted at the bottom of the refrigerator body (1), a movable cover plate (16) is movably mounted at the top of the refrigerator body (1), a fixed frame (7) is fixedly mounted on each of the left and right sides of the refrigerator body (1), a limiting rod (23) is fixedly mounted on each of the upper and lower sides of an inner cavity of each fixed frame (7), a buffer plate (20) is movably mounted between the two limiting rods (23), and telescopic rods (21) are fixedly mounted on the opposite sides of the left and right buffer plates (20). A: A detachable lifting and lowering apparatus for ocean investigation and method therefor. Said lifting and lowering apparatus comprises two bearing plates (1); a fixing plate (8) is each fixedly mounted on the sides of the two bearing plates (1) close to each other; a same mounting plate (7) is slidably mounted on the outer sides of the two fixing plates (8); a motor (6) is fixedly mounted on the top of the mounting plate (7); a screw rod (5) is fixedly mounted on an output shaft of the motor (6); a lifting and lowering plate (4) is mounted on the screw rod (5) in a threaded manner; a transmission plate (3) is each slidably mounted on two sides of the lifting and lowering plate (4); a vertical plate (2) is each fixedly mounted on the sides of the two transmission plates (3) away from each other; a first placement plate (20) is fixedly mounted on one side of one of the two vertical plates (2) and a second placement plate (21) is fixedly mounted on one side of the other vertical plate; and a same investigation instrument (22) is placed on the tops of the first placement plate (20) and the second placement plate (21). Said lifting and lowering apparatus facilitates the disassembly of investigation instruments, and can adapt to investigation instruments of different sizes. B: A lifting/lowering test platform and method for marine instruments and devices, the platform comprising a bottom plate (1). First side plates (2) are fixedly installed on two sides of the bottom plate (1); a first support plate (5) is slidably installed on each of the two first side plates (2); a second support plate (6) is fixedly installed on each of the two first support plates (5); a third support plate (7) is fixedly installed at the bottom of each of the two second support plates (6); a plurality of installation holes (8) are formed on both the two third support plates (7); electric push rods (9) are fixedly installed on two sides of the bottom plate (1); the output shafts of the two electric push rods (9) are respectively fixedly connected to the two second support plates (6); two second side plates (10) are symmetrically and fixedly installed on the top of the bottom plate (1); a top plate (11) is fixedly installed on the tops of the two second side plates (10); an operation plate (13) is slidably installed above the top plate (11); and two expansion plates (24) are symmetrically and slidably installed on the operation plate (13). The lifting/lowering test platform has a large operation area and high operation stability and is convenient to use. C: Disclosed is a solar powered refrigerator, comprising a refrigerator body, a top cover of the body, and refrigerator doors. The refrigerator body is provided with an extendable plate respectively on both sides, and the refrigerator doors and the extendable plates are provided with solar panels. When being used outdoors, the extendable plates on both sides can be pulled upwards into position via a rail, then rotated outwards 90 degrees such that the plates are parallel to the solar panels at the top and constitute therewith the largest light-absorbing area for power generation supplying sufficient power to the system. When not being used, the extendable plates on both sides can be rotated inwards 90 degrees and nestled closely to the body, and the solar panels can be hidden by being pulled downwards along the rail. D: Disclosed is an intelligent control industrial robot, comprising a base (1), wherein a supporting arm (2) is fixedly installed at the top of the base, a sliding arm (5) is installed on one side of the supporting arm in a sliding manner, a welding gun (7) is movably installed on the sliding arm, a cylindrical rod (9) is fixedly installed at the bottom of the sliding arm, a placement table (15) is fixedly installed at the top of the base, two sliding grooves (12) are formed in the top of the base, sliding plates (13) are installed in the two sliding grooves in a sliding manner, the two sliding plates are located on the two sides of the placement table respectively, clamping blocks (14) are fixedly installed on the sides, close to each other, of the two sliding plates, a groove (16) is formed in the top of the placement table, and two clamping plates (17) are installed in the groove in a sliding manner. In the intelligent control industrial robot, a workpiece is clamped and fixed all around by means of the two clamping blocks and the two clamping plates, such that the welding stability of the workpiece is improved; moreover, different positions of the workpiece can be welded by adjusting the position of a welding gun; and the intelligent control industrial robot is simple in terms of structure, and is convenient to use.

C

Please select the most similar patent number from A, B, C and D. Which number is? An actuator (100) for adjusting a display terminal (500), and a vehicle (800). The actuator (100) comprises: a housing (10), a mounting unit (20), a driving unit (40), and a clutch unit (30). The display terminal (500) is mounted on the mounting unit (20), one end of the mounting unit (20) being inserted into an inner space of the housing (10), the clutch unit (30) is provided between the mounting unit (20) and the housing (10), and the driving unit (40) is provided on the housing (10) and is connected to the mounting unit (20), so as to drive the mounting unit (20) to move. A: Disclosed is an execution mechanism (100) for adjusting a display terminal, comprising: a power source (75a), and a driving mechanism connected to the power source (75a), wherein the driving mechanism is connected to a display terminal (1) to drive the display terminal (1) to eccentrically rotate, and the center of the display terminal (1) deviates from the initial center of the display terminal (1) during the process of rotating. The driving mechanism comprises a rotating shaft (79), the axis of an output end of the rotating shaft (79) not coinciding with the axis of an input end of the rotating shaft (79), and further comprises a sliding mechanism (3) and a rotating mechanism (7), the sliding mechanism (3) being connected to the display terminal (1). The power source is used to drive the display terminal (1) to rotate by means of the rotating mechanism (7), and the sliding mechanism (3) moves along with the rotation of the display terminal (1) so as to move the display terminal (1). Further disclosed are a display terminal assembly comprising an execution mechanism (100), and a vehicle (1000). B: A bicycle driving system (10), comprising: a drive unit (15), which comprises a housing, a motor unit (20) accommodated within the housing, and a first-stage deceleration unit (30), the motor unit being provided with a stator (21), a rotor (22) and an output shaft of the motor unit, the first-stage deceleration unit being provided with an input part and an output part, and the input part being connected to the output shaft of the motor unit; a mounting unit (50), which is configured to fix and hold the drive unit to a bicycle body (70); and a second-stage deceleration unit (40), which is detachably mounted on the first-stage deceleration unit at the exterior of the drive unit and which is connected to a foot pedal assembly (80), so that the driving force from the output part of the first-stage deceleration unit is transmitted to a crankset (82) of the food pedal assembly. The drive unit, the mounting unit and the second-stage deceleration unit are each modularly assembled on a bicycle. The described driving system may be flexibly configured to meet the individual requirements of users. C: A liquid crystal display panel (2) and a liquid crystal display containing the liquid crystal display panel (2). The liquid crystal display panel comprises: a gate drive module (10), a display unit (20) and a plurality of COF encapsulation units (30a, 30b) arranged at one side of the display unit (20); an output leading wire (40) of the plurality of COF encapsulation units (30a, 30b) is connected to a gate leading wire (50) of the display unit (20); the plurality of COF encapsulation units (30a, 30b) are sequentially connected in series through a signal leading wire (60) and then are connected to the gate drive module (10); the gate drive module (10) provides a scanning signal for the display unit (20) through the plurality of COF encapsulation units (30a, 30b); a first insulation pattern layer (70a) is laid on the gate leading wire (50); a via hole structure (80) is arranged in the first insulation pattern layer (70a); and the output leading wire (40) is connected to the gate leading wire (50) by a metal leading wire (90) through the via hole structure (80), wherein the contact area of a first via hole structure (80a) connected to a previous COF encapsulation unit (30a) is less than that of a second via hole structure (80b) connected to a later COF encapsulation unit (30b). D: An in vitro diagnostic analysis system, and an optical detection apparatus. The optical detection apparatus comprises a lens module (10), a light source module (20), a detection module (30) and a driver. The lens module (10) comprises a first mounting unit (100), a dichroscope (200), an excitation sheet (300) and an emission sheet (400), wherein the dichroscope (200) and the excitation sheet (300) are arranged, spaced apart from each other, on the first mounting unit (100), and the dichroscope matches the excitation sheet (300) to form an excitation light path; and the dichroscope (200) and the emission sheet (400) are arranged, spaced apart from each other, on the first mounting unit (100), and the dichroscope matches the emission sheet (400) to form an emission light path. The light source module (20) comprises a second mounting unit (22) and a light-emitting member (24), wherein the light-emitting member (24) is arranged on the second mounting unit (22), and the light-emitting member (24) and the excitation sheet (300) are arranged spaced apart from each other. The detection module (30) comprises a third mounting unit (32) and a detection element (34), wherein the detection element (34) is arranged on the third mounting unit (32), and the detection element (34) and the emission sheet (400) are arranged spaced apart from each other. The driver is used for driving the first mounting unit (100) to move.

A

Please select the most similar patent number from A, B, C and D. Which number is? An automotive front seat overhead airbag (10) comprising a supporting air chamber (1) mounted on a roof of a vehicle and a protective gas chamber (2), wherein the supporting air chamber (1) is unfolded from the vehicle roof towards an instrument panel, the protective gas chamber (2) is in communication with the supporting air chamber (1), after the supporting air chamber (1) is unfolded, the protective air chamber (2) is unfolded from the supporting air chamber (1) towards a human body (100), a first protection space (3) is left between the supporting air chamber (1) and the protective air chamber (2) on the side facing the human body (100), and the first protection space (3) corresponds to the head of the human body and is used for protecting the head and the neck of the human body (100). An automobile comprising the vehicle roof and the instrument panel, and further comprising the automotive front seat overhead airbag (10), wherein the upper end of the supporting air chamber (1) is connected to a gas generator. Passenger injury can be avoided under child off-site operating conditions and no load operating conditions. A: An integral door seal having an auxiliary energy-saving structure, comprising an outer air chamber (201) arranged between the refrigeration appliance body (1) and the door body (3); the outer air chamber (201) and a magnetic strip air chamber (202) are connected, and said outer air chamber (201) and magnetic strip air chamber (202) are both connected to a supporting air chamber (205); the supporting air chamber (205) is connected with a small chamber (217) by means of a small-chamber support rib (209). Near the vertical gap between the appliance body (1) and the door body (3), the outer air chamber (201) is connected to an auxiliary air chamber (211) by means of a connecting rib (218); the auxiliary air chamber (211) is arranged between the corner (11) of the appliance body side beam and the corner (31) of a projecting portion of the door body (3). The supporting air chamber (205) is provided with a first supporting bend (2061) and a second supporting bend (2062), said two supporting bends self-adaptively deforming in response to pressure applied to the door seal, and thus compensating for the deformation caused by the difference between the gap between an appliance body (1) and a door body (3) and a theoretical value for same, and obviating cold escape, freezing condensation and similar problems. B: Provided in the present invention is a nerve monitoring endotracheal cannula, the endotracheal cannula comprising: an endotracheal guide tube; an annular balloon, used for sealing the gap between the endotracheal guide tube and the trachea of the patient, the annular balloon being disposed annularly on the outer wall of the endotracheal guide tube; a support balloon, used for positioning the endotracheal cannula, the support balloon being arranged on the side of the endotracheal guide tube facing the glottis, and the support balloon adapting to the shape of the glottis after inflation and expansion; and a first inflation assembly and a second inflation assembly for inflating the annular balloon and the support balloon respectively. C: Disclosed in the present invention is a built-in electric inflated and exhausted heat-insulating sun-screening device for an automobile, which comprises an air curtain (1) matched with the interior of the automobile; the outer surface of the air curtain is provided with a heat-insulating sun-screening layer (2); a position of the air curtain (1) close to the middle is downwards provided with a supporting air column (3); the supporting air column (3) is provided with an inflation and exhaust hole (4) which is connected with an inflation and exhaust pump (5); the supporting air column (3) is arranged in an accommodating box (6), so that the whole air curtain (1) and the supporting air column (3) are accommodated in the accommodating box (6) in the folding process. The inflation and exhaust pump (5) is arranged in the accommodating box (6) or outside the accommodating box (6), and has a battery structure or is connected with a cigar lighter jack to be charged. By the built-in structure, the device does not influence the beauty of the automobile during parking, and dust can not fall on the device. The device is convenient to support and accommodate, can well protect electronic elements in the automobile from being insolated for a long time so as not to shorten the service life of the electronic elements, and can also prevent harmful substances from releasing due to insolation of the interior trim parts, so that the health of a user is not influenced. D: An airbag, an airbag system, and an automobile. When in an uninflated state, the airbag is accommodated in an upper frame member of a front windshield. After being trigged, the airbag inflates vertically downward. The airbag in the inflated state has a main bag. The main bag has a drop-shaped longitudinal cross-section. Since the airbag does not occupy a space within a dashboard, a front passenger has a larger space, thereby enhancing comfort for the passenger. Moreover, the airbag can inflate quickly and thus exhibits good safety performance.

D

Please select the most similar patent number from A, B, C and D. Which number is? A self-driving method, comprises: acquiring the motion state of an obstacle within a preset range; respectively inputting the motion state of the obstacle into an artificial intelligence (AI) model and a potential energy function, and determining a first motion state and a second motion state of a vehicle, wherein the potential energy function indicates the possibility of collision between the obstacle and the vehicle by calculating a collision potential energy between the obstacle and the vehicle, wherein the greater the collision potential energy, the greater the possibility of collision, and the smaller the collision potential energy, the smaller the possibility of collision, the first motion state being the movement speed and the moving direction of the vehicle calculated on the basis of the AI model, and the second motion state being the movement speed and the moving direction of the vehicle calculated on the basis of a potential energy function model; and determining a target motion state of the vehicle on the basis of the first motion state and/or the second motion state, the target motion state comprising a target movement speed and a target moving direction of the vehicle. Said method improves the safety of adjusting the movement speed and the moving direction of a vehicle. A: An information display method and apparatus, and an electronic device and a computer storage medium. The method comprises: obtaining a motion state of a target vehicle in a virtual scene at the current moment, and a first operation for controlling the target vehicle to move in the virtual scene (S202); predicting a first motion trajectory of the target vehicle within a period of time after the current moment by combining the motion state of the target vehicle at the current moment and the first operation (S204), wherein the first motion trajectory comprises a motion line and the motion direction of the target vehicle within a period of time after the current moment; and displaying the first motion trajectory and a second motion trajectory, wherein the second motion trajectory is a motion trajectory of the target vehicle prior to the current moment, and the position where the first motion trajectory and the second motion trajectory meet is the position of the target vehicle at the target vehicle (S206). B: A determination method and device for a collision prediction of an autonomous vehicle. An obstacle and an autonomous vehicle are both regarded as a two-dimensional-level polygon with a protrusion. According to the traveling movement direction of the obstacle and the traveling movement direction of the autonomous vehicle, some points, at which a collision probably happens, on a polygonal edge are determined to perform corresponding obstacle predicted path planning and autonomous vehicle predicted path planning; and when it is determined that there is a point of intersection between each obstacle predicted path and each autonomous vehicle predicted path, according to an autonomous vehicle traveling distance, a set safety distance and the minimum distance, whether the autonomous vehicle collides with the obstacle is determined, the moment when the collision happens can be then calculated, and the specific position where the body of the autonomous vehicle undergoes a collision is accurately determined, such that the prediction of whether the autonomous vehicle collides with the obstacle is more accurate. The method is applicable to structured roads such as straight roads, curved roads and intersections, and unstructured roads, and there is no need to perform differentiated processing. C: Provided are a testing method and apparatus for an autonomous vehicle, which belong to the technical field of autonomous driving and can be used to test intelligent vehicles and autonomous vehicles. The testing method comprises: acquiring a target test case, wherein the target test case is used to indicate a first scenario element in a target virtual scenario, and the first scenario element comprises an initial motion state of a virtual test vehicle; acquiring a motion state of a test vehicle during an execution process of the target test case; converting the motion state of the test vehicle into a motion state of the virtual test vehicle according to a state conversion relationship; and evaluating the performance of the test vehicle according to the motion state of the virtual test vehicle. By means of the solution of the present application, the testing efficiency of an autonomous vehicle can be improved, such that the solution is applied to testing models of mass-produced vehicles. D: A vehicle rearview mirror control method and apparatus, and an electronic device and a storage medium. The method comprises: when a vehicle is in a first motion state, acquiring location information of an obstacle; when the vehicle is in a second motion state, calculating the distance between a rearview mirror and the obstacle according to a real-time pose of the vehicle and the location information of the obstacle; and when the distance satisfies a first preset control condition, controlling the rearview mirror to fold.

B

Please select the most similar patent number from A, B, C and D. Which number is? A method and an apparatus for human-machine interaction based on a panoramic surround view, the method comprising: step S101: receiving an operation for a panoramic surround image triggered by a user on a vehicle-mounted screen, and acquiring corresponding operation information, the operation information including at least one screen coordinate; step S102: on the basis of the operation information, displaying at least one driving function for the user to select; step S103: converting the at least one screen coordinate included in the operation information to obtain at least one corresponding world coordinate; and step S104: on the basis of the at least one world coordinate and the driving function selected by the user, controlling the vehicle to execute a corresponding driving function. A: Disclosed are an interactive operation method and apparatus based on a foldable terminal, which are applied to a terminal comprising a first screen and a second screen. The method comprises: acquiring a first measurement parameter of the first screen and a second measurement parameter of the second screen; determining a first event according to the first measurement parameter and/or the second measurement parameter; and determining, according to the first event, an interactive operation instruction corresponding to the first event, and executing the interactive operation instruction, wherein the first event is at least one action of a target screen. According to the method, by means of setting a series of actions of folding or unfolding at least one of the first screen and the second screen as the first event and establishing a correlation between the first event and the interactive operation instruction, when it is detected that at least one screen action triggers the first event, the interactive operation instruction corresponding to the first event is executed, thereby improving the operability of a folding screen, and improving the operation experience of a user. B: Disclosed are a method, an apparatus, and a system of remote control positioning with a light ray. The method comprises the following steps: receiving a visible light ray and key-pressing action information emitted by an emission end apparatus; obtaining screen image information comprising a cursor based on the key-pressing action information; parsing location coordinates on a screen image related to the cursor on the screen image based on the obtained screen image information; and performing an operation corresponding to an interface element at the parsed location coordinates of the cursor based on the location coordinates. By using the present invention, an interface element can be positioned by obtaining a screen image and based on a cursor on a screen, thus accurately and conveniently implementing operations and controls on complex interfaces. C: A self-driving interactive method, comprising: acquiring driving information of a self-driving vehicle (S501); displaying the driving information of the self-driving vehicle and vehicle control icons on a touch display interface of an interactive device (S401), wherein the vehicle control icons are used to represent a control program that controls the self-driving vehicle to implement preset functions; acquiring a touch operation of a user on the vehicle control icons (S402); according to the touch operation, generating a control instruction which corresponds to the touch operation and controls the self-driving vehicle to execute a control instruction of the control program, and sending the control instruction to the self-driving vehicle in order to control the self-driving vehicle to execute the control program so as to implement the preset functions (S403). In the present application, a touch display interface is provided at a position that facilitates a user operation to control the self-driving vehicle, which makes user operations convenient, and improves the efficiency in controlling the self-driving vehicle so as to increase safety during the operation of the self-driving vehicle. Also comprised are a self-driving device, a self-driving system and a computer-readable storage medium. D: An application running method and an electronic device, relating to the technical field of electronics, and capable of implementing the function of using motion sensing actions to control a game by means of mapping motion sensing actions to touch operations on a touch screen, enhancing the game experience. The method runs on an electronic device having at least one camera and a touch screen, the method comprising: the electronic device displays a first picture of the first application, the first application supporting the user controlling the first application by means of touch operations on the touch screen; the electronic device captures a first image of the user by means of the at least one camera, and recognises a first motion sensing action of the user in the first image; the electronic device determines first touch operation information corresponding to the first motion sensing action, the first touch operation information comprising the type of the first touch operation and the position of the first touch operation acting on the touch screen; and, in response to determining the first touch operation information corresponding to the first motion sensing action, the electronic device executes the operation corresponding to the first touch operation.

C

Please select the most similar patent number from A, B, C and D. Which number is? A single-station lightweight suspension railway transit system, the tracks whereof are suspended above ground by means of support columns and beams, and the system comprising: rail cars (9) suspended beneath the rails, a main rail (3) being provided for said rail cars (9) to run upon; suspended stop rails (5) provided parallel thereto for the rail cars (9) to stop upon, braking rails (4) for speed reduction which turn towards the stop rails (5), restart and acceleration rails (7) which return to the main rail (3), turnout and track-switching equipment, and rail-car elevator assemblies (10) for causing the rail cars (9) to be lowered and raised. The rail cars (9) are compact and lightweight and comprise smart terminals; also comprised are a smart car control system, and an overall scheduling control center. A: An personal hanging type double-rail and double-power automatic control light rail traffic system comprises a rail system, rail vehicle power systems, a rail vehicle traffic network control system, a rail vehicle compartment system, a rail vehicle power supply system, and a rail vehicle stop station system. The rail system is provided with two rail lines (28, 29), which are a left side straight rail line and a right side turning rail line that are in parallel but are different in top face level, and the two power systems of a left side straight rail drive device and a right side turning rail drive device are separately disposed above the two rails. A relative distance between the turning drive device and the turning rail is changed by using a lifting device, and meanwhile, under the effect of a change of the relative level between the straight rail and the turning rail, switching of a rail vehicle between the left side straight rail and the right side turning rail is implemented. A central computer control system is used in cooperation in the system, automatic control is achieved, and the rail vehicle autonomously travels. B: A single and double-decker variable recreational vehicle, comprising a regular carriage (1) and an upper carriage disposed above the regular carriage, the top panel (7) of the regular carriage serving as the bottom panel of the upper carriage. The upper carriage comprises a top roof (2), a top roof side skirt (3), a bottom panel upper skirt edge (9), a top roof lower skirt edge (10), and a foldable side fence (6). The recreational vehicle is also provided with a single and double-decker conversion system, which comprises a plurality of vertically disposed lifting support devices. The lifting support devices are each at least composed of a main body (4) and a lifting column (5) and are symmetrically distributed on both sides of the vehicle body of the recreational vehicle. The main body is fixedly connected to a side fence frame of the regular carriage. The lower end of the main body is connected to the vehicle body chassis of the regular carriage, and the upper end of the main body is connected to the top panel of the regular carriage. The lifting column is retractably inserted into the interior of the main body. The upper end of the lifting column is connected to the top roof of the upper carriage. The main body has an extending segment that protrudes from the bottom panel of the upper carriage. The functions of a house and a vehicle are fused by means of single and double-decker conversion, thus costs are low and said vehicle is economical. C: A railway side-tipping wagon comprises: an underframe assembly (1); a wagon assembly (2) installed at the top of the underframe assembly (1); a side door (3) hinged to one side of the wagon assembly (2); a side door opening/closing mechanism (4) for controlling opening and closing of the side door (3); a bogie (8) installed at the bottom of the underframe assembly (1); an air brake device (5) installed at the bottom of the underframe assembly (1) and capable of performing service braking on a wheel of the bogie (8); a parking brake device (6) installed at the bottom of the underframe assembly (1) and capable of performing parking braking on the wheel of the bogie (8); and a coupler cushioning device (9) installed at an end portion of the underframe assembly (1). The present invention further comprises a pneumatically-controlled hydraulic system (7) for controlling multiple side door opening/closing operation cylinders (4.1) of the side door opening/closing mechanism (4). D: Disclosed are a system for passengers to get on and off a vehicle without the vehicle needing to stop, and a method therefor. The system comprises an operating vehicle (100) and a platform (200), wherein the operating vehicle (100) comprises a vehicle body (110) and a vehicle carriage connection portion; the vehicle carriage connection portion is arranged on the vehicle body (110); and the platform (200) comprises a platform and carriage connection portion and a platform body. The system for passengers to get on and off a vehicle further comprises a plurality of separate-type carriages (300). The plurality of separate-type carriages (300) is divided into carriages for passengers to get on (310) and carriages for passengers to get off (320). The plurality of separate-type carriages (300) is transmitted between the vehicle carriage connection portion and the platform and carriage connection portion so that the actions of passengers getting on and off a vehicle can be completed without the vehicle needing to stop.

A

Please select the most similar patent number from A, B, C and D. Which number is? A pipe air pressure regulating device, relating to the technical field of transportation, the pipe air pressure regulating device comprising a pipe (4) and at least one air pressure regulating assembly disposed at an outter side of the pipe (4). The pipe (4) is provided with an inner cavity used for transportation of a transport tool (5). Each air pressure regulating assembly comprises a breather pipe (1), air inlets and air outlets of the breather pipes (1) communicate with the inner cavity of the pipe (4), and the breather pipes are used for adjusting the air pressure difference between the front and rear of the transport tool. The present device reduces the air pressure difference between a front portion and a rear portion of the transport tool in the process of the transport tool traveling in the pipe and reduces the travel resistance of the transport tool. At the same time, the symmetrical stress caused to the pipe wall by the pressure difference between the front portion and the back portion of the transport tool is reduced, thus having the effect of the pipe being protected. The present device may continuously extrude the residual air in the pipe by means of the traveling of the transport tool, so that the travel resistance of the transport tool is as low as possible. A: Disclosed is a portable power generation system. The entire power generation system has two transportation tools. A gas turbine, a power generator, an air inlet chamber, an exhaust collector, and an auxiliary system are provided on a first transportation tool. An air inlet assembly and an exhaust pipeline are provided as an integrated component on a second transportation tool. The second transportation tool further comprises at least four lifting devices used to separate the air inlet assembly and the exhaust pipeline from the second transportation tool and raise the same upward, such that a power generation transportation tool can move to a position directly below the air inlet assembly and the exhaust pipeline, and the lifting devices are then used to lower the air inlet assembly and the exhaust pipeline so as to connect the same with the air inlet chamber and the exhaust collector, respectively. The invention utilizes the weight of the air inlet assembly and the exhaust pipeline to achieve a seal at the joints. B: A protection apparatus for protecting a pipe bevel during transportation, storage and loading of pipes, comprising a protection hood and a fast opening connection member, the protection hood enveloping an end bevel of a pipe requiring protection, and the fast opening connection member being connected to the pipe in a sealed manner. The protection hood comprises a cover plate (1) and a connecting end on the protection hood, and the fast opening connection member comprises a connecting end fixed on an outer wall of the pipe, a washer (4) and a sealing component. The connecting end on the protection hood comprises an upper snap disc (2), the connecting end fixed on an outer wall of the pipe comprises a lower snap disc (5), and the sealing component comprises a snap hoop (3). Nitrogen charged inside the pipe can be held therein for drying and the pressure of the nitrogen charge is regulated by a pressure gauge inside a connecting pipe. The apparatus protects the bevel of a pipe to be welded during transportation, storage and loading without colliding and causing wear, and also prevents foreign substances entering the pipe and contaminating the pipe; is convenient to detach, reducing installation labour; and can be repeatedly detached and can be reused for pipes of the same diameter, saving on materials. C: An ejecting device, comprising a cabin (30) provided on a transportation tool, and a push-out part electrically connected to an ejection triggering circuit of the transportation tool. The push-out part comprises a push rod (31). The cabin (30) is a hollow cavity with one end opened. The push rod (31) is located within the cabin, and is used for performing ejection motion along a direction towards the opening of the cabin (30) after receiving a triggering signal of the ejection triggering circuit of the transportation tool, so as to eject an article to be dropped out of the transportation tool. The ejecting device can eject a to-be-dropped article in a transportation tool, so as to make the dropped article fall within a target drop area. D: A high-speed transportation device using a low-pressure tube comprises a travel tube (1), a travel guide rail (7), a conveyance structure (2), a control system, a braking system, and a drive system. The travel tube is an extending tube structure formed by a tube wall. The tube wall is provided with a one-way air flow window (3) capable of controlling an air flow direction. The drive system comprises a tube-filling travel driving structure (4) capable of traveling through the tube, a tube traveling and filling structure (26), and a tube-filling travel pressure-reducing structure. The conveyance structure (2) is a carriage structure. The tube-filling travel driving structure (4), the tube traveling and filling structure (26) and the conveyance structure (2) are flexibly and extendably connected.

D

Please select the most similar patent number from A, B, C and D. Which number is? An electrically controlled pneumatic plug door, comprising a sealing frame (1) and a door leaf assembly (2). A sealing surface (11) is provided at one side of the sealing frame (1). The door leaf assembly (2) is provided with a door panel (21) and a sealing member (22) arranged around the door panel (21). The sealing member (22) is provided with a first sealing lip (221) and a second sealing lip (222) protruding towards the sealing surface (11), the first sealing lip (221) and the second sealing lip (222) both sealedly fit the sealing surface (11), and a sealing slot (223) is formed between the first sealing lip (221) and the second sealing lip (222). Also disclosed is a rail vehicle comprising the electrically controlled pneumatic plug door. Use of the electrically controlled pneumatic plug door can solve the problem of poor sealing effect of a related electrically controlled pneumatic plug door. A: A seal assembly (800) for use with a scroll compressor and a scroll compressor (10) comprising the seal assembly (800), the scroll compressor (10) comprising a first member and a second member. The seal assembly (800) is disposed between the first member and the second member. The seal assembly (800) comprises: a seal member (820) having a first seal surface (822) abutting the first member and a second seal surface (824) abutting the second member; and a support member (840). The seal member (820) is provided with a seal member contact portion facing the first seal surface (822) and the second seal surface (824), and the support member (840) is provided with a support member contact portion engaging the seal member contact portion, resulting in the support member (840) being pushed towards the seal member (820) such that the seal member (820) abuts the first member and the second member. The seal assembly (800) can realize an axially flexible back pressure chamber with reliable sealing, while improving ease of assembly of associated seal components. B: A plug door for a coach comprises a fixed support (1), a movable support (2), a plug switching mechanism (3), a pivoted arm linkage mechanism (4), a drive mechanism (5), and a door panel (6). The plug switching mechanism (3), the pivoted arm linkage mechanism (4), and the drive mechanism (5) enable the plug movement of the door panel (6) of the coach. The plug door provides a good seal and moves stably and reliably. C: A channel sealing valve (22), a channel sealing mechanism (2) and a universal hysteroscope; the channel sealing valve (22) comprises: a first sealing member (221), having a first opening (2210); and a second sealing member (222), wherein the first sealing member (221) and the second sealing member (222) are stacked on each other, a protrusion portion (223) is formed by protruding from the position of the second sealing member (222) corresponding to the first opening (2210) in the direction away from the first sealing member (221), a buffer chamber (2230) is formed between the protrusion portion (223) of the second sealing member (222) and the first sealing member (221), and the protrusion portion (223) has a second opening (2220). The channel sealing mechanism (2) of the universal hysteroscope can well reduce the outflow of liquid from a working pipe (10) during passing of a working instrument (3), replacement of the working instrument (3), and a missing state of the working instrument (3), and maintain the liquid pressure in the working pipe (10) during use of the hysteroscope. D: A triangular rotor pump, comprising a housing, the housing comprising a side wall (100), and a first end cover (210) and a second end cover (220) respectively disposed at two ends of the side wall (100), and further comprising a triangular rotor (300) in the housing and an eccentric assembly (400) that drives the triangular rotor (300), the triangular rotor (300) comprising a rotor body (310) and a sealing member (320) disposed on the rotor body (310), the sealing member (320) being an elastic structural member, the rotor body (310) comprising three top ends (312) and side surfaces (311) respectively facing the first end cover (210) and the second end cover (220), the sealing member (320) comprising three first sealing portions (321) respectively disposed at the three top ends (312), each first sealing portion (321) abutting against the inner surface of the side wall (100) to form a radial sealing surface that blocks adjacent working cavities, the sealing member (320) further comprising two second sealing portions (322), two second sealing portions (322) being respectively disposed at two ends of the rotor body (310) in an axial direction, and the second sealing portions (322) respectively abutting against the first end cover (210) and the second end cover (220) to form an end surface sealing surface, and two ends of the first sealing portion (321) being respectively clearance-free fit with the two second sealing portions (322). Thus, radial sealing and end surface sealing are implemented.

B

Please select the most similar patent number from A, B, C and D. Which number is? A pilot and a train. The pilot comprises an energy absorption obstacle deflector (1); the energy absorption obstacle deflector (1) comprises a fixed housing (111), a sliding cover (112), and an energy absorption unit (12); the fixed housing (111) and the sliding cover (112) define a closed accommodation space (110); the sliding cover (112) is telescopically connected to the fixed housing (111) for deflecting an obstacle. The energy absorption unit (12) is located in the accommodation space (110); the sliding cover (112) is telescopically connected to the fixed housing (111); at the time of a collision, the sliding cover (112) can slide to be cushioned to avoid deformation of the sliding cover (112) due to a rigid collision, and during the sliding process, the sliding cover (112) enables the energy absorption unit (12) to abut against the sliding cover (112) to also absorb the damage energy transmitted by the sliding cover (112). A: The utility model relates to a sealed container, comprising a container and a container cover. The container cover comprises a cover body; the lower side of the cover body is provided with a movable base; elastic sealing members are provided between the movable base and the cover body; the elastic sealing members are connected to the cover body or the movable base; when the movable base is moved upward, the outer edges of the elastic sealing members are deformed outward, so that the elastic sealing members form sealing portions between the movable base and the container, to seal the container cover and the container; the upper side of the container cover is provided with an opening and closing mechanism for opening and closing the container cover; the opening and closing mechanism comprises a rotary switch and a sliding cover; during the rotation of the rotary switch, the movable base moves up and down, the outside of the rotary switch is provided with a sliding cover in a sliding connection manner; the sliding cover can slide out of the rotary switch. In this way, in the process of opening and closing the cover, the arm length of the rotating rotary switch can be increased by means of the sliding cover to form a labor-saving lever, so that it is more convenient and easier to open and close the container, and the container can also bear a greater pressure and achieve sealing of the container having a larger caliber. B: A film sticking apparatus, comprising a protective film (200), a base (110) and a sliding assembly; the protective film (200) comprises a positioning layer (210), a protective layer (220) and a release layer(230) which are sequentially stacked; one end of the positioning layer (210) protrudes out of the protective layer (220) to form a positioning end (211); one end of the release layer(230) protrudes out of the protective layer (220) to form a fixing end (231); the positioning end (211) and the fixing end (231) are located on the same side of the protective layer (220); the base (110) comprises an accommodating portion (112) for accommodating an electronic device and a positioning portion (111) located at one end of the accommodating portion (112); the positioning end (211) is fixedly connected to the positioning portion (111); the sliding assembly comprises a sliding member (130) and a dust sticking member (140); the sliding member (130) comprises a body (133) and a first sliding arm (131) and a second sliding arm (132) provided at two ends of the body (133); the first sliding arm (131) and the second sliding arm (132) are detachably and slidably connected to the base (110); the dust sticking member (140) is fixedly provided on the side of the body (133) facing the base (110); and the fixing end (231) is fixedly connected to the body (133). The present invention also relates to a film sticking method. The device and method can prevent impurities from falling on the protective layer (220) or the electronic device during film sticking, and solve the problem of unsmooth air exhaust during the process of sticking the protective film (200) to the screen of a mobile phone, thereby bringing better film sticking experience to a user. C: An electronic lock (10) used on a door. The electronic lock (10) comprises: a casing (100), a securing base (300), a lock cylinder (400), and a latching hook (500). The casing (100) comprises a casing body (110) and a sliding portion (120). The casing body (110) is connected to the sliding portion (120). The casing body (110) is provided with a first engagement hole (112). The securing base (300) is provided with a connection hole (310) and an accommodating hole (330). The connection hole (310) comprises a first portion (312) and a second portion (314). The first portion (312) communicates with the second portion (314). The sliding portion (120) can be placed within the first portion (312) to form a sliding connection with the securing base (300). The sliding portion (120) can be placed within the second portion (314) to form a rotational connection with the securing base (300). The securing base (300) is used for securing on a door. The lock cylinder (400) is provided on the securing base (300). The latching hook (500) is inserted through the accommodating hole (330). The latching hook (500) is movably connected to the lock cylinder (400). The latching hook (500) can be engagingly inserted into the first engagement hole (112). D: A collision energy absorption apparatus for rail vehicles, comprising a connection member (2), a base (3), and an energy-absorption splitting tube (1) provided on the outer side in the radial direction of the connection member (2). The inner wall and outer wall of the energy-absorption splitting tube (1) comprises one or more pairs of slits (11) having radial positions corresponding to each other. Each pair of slits (11) comprises an inner slit (111) and an outer slit (112). Each slit is a non-closed linear slit. The slit has a width of 0.05-0.8 mm. The sum of the depths of each pair of slits is less than the wall thickness of the energy-absorption splitting tube. The collision energy absorption apparatus for rail vehicles can obviously reduce the peak of an initial impact force; the effective stroke of the collision energy absorption apparatus can theoretically reach 100%. Moreover, the collision energy absorption apparatus can be easily mounted on either end of a rail vehicle to dissipate kinetic energy during a vehicle collision.

D

Please select the most similar patent number from A, B, C and D. Which number is? A folding joint (2) for a baby carriage. The folding joint (2) comprises: an upper rotary disk (23) and a lower rotary disk (24) each provided with a positioning hole; a rotary disk positioning outer cover (22) and a rotary disk positioning inner cover (21) each provided with a positioning hole, wherein the two positioning holes are corresponding to the positioning hole of the upper rotary disk (23) and that of the lower rotary disk (24); a first traction cable (25), a second traction cable (26), and a stopping member (27) capable of preventing the upper rotary disk (23) and the lower rotary disk (24) from rotating. The upper rotary disk (23) and the lower rotary disk (24) each have a P-shaped swing lever, wherein the P-shaped swing lever of the lower rotary disk (24) is fixedly connected to front feet tubes (3) of the baby carriage, and the P-shaped swing lever of the upper rotary disk (23) is fixedly connected to handle tubes (1) of the baby carriage. The rotary disk positioning inner cover (21) and the rotary disk positioning outer cover (22) are fixedly connected to rear feet tubes (4) of the baby carriage. The folding joint (2) can avoid the hands from being cut or clamped during folding of the baby carriage, so that the infant-care parents can use the baby carriage more comfortably. A: Disclosed is a large-joint structure of a baby carriage, the large-joint structure comprising a front foot assembly (1), a rear foot plate (2) and a handle (3). The front foot assembly (1) comprises a front foot plate (4) and a front foot housing (5), the handle (3) and the rear foot plate (2) are hinged to the front foot plate (4) correspondingly in the front foot housing (5), the handle (3) is provided with an inner cavity, the inner cavity of the handle (3) is provided with a first hinge (6), the first hinge (6) is provided with a handle latch hook (7), a first torsional spring (8) is arranged between the handle latch hook (7) and the inner cavity of the handle, and the handle latch hook (7) is fixedly connected to a pulling wire (9); a groove (41) is provided in an edge of a tail of the front foot plate (4), and the handle latch hook (7) is in movable clamping connection with the groove (41) of the front foot plate (4); a second hinge (10) is arranged on the front foot housing (5), the second hinge (10) is provided with a rear foot latch hook (11) and a rear foot latch hook seat (12), a second torsional spring (13) is arranged between the rear foot latch hook (11) and the rear foot latch hook seat (12), and a reset spring (14) is arranged between the rear foot latch hook seat (12) and the front foot housing (5); the rear foot latch hook (11) is in movable clamping connection with a limiting clamp groove (21) in the rear foot plate (2); and the front foot assembly (1) is synchronously locked with the handle (3) and the rear foot plate (2) and unfolded for linkage, such that the whole structure is compact, the manufacturing cost is effectively reduced, and the operation is more simple, convenient and quick. B: A poultry offal taking out apparatus. An apparatus body (1), a leg separating device (2), a chest positioner (3), a wing positioner (4) and a chest pressing device (5) are sequentially mounted on a left guide rod (10) and a right guide rod (11); a track wheel (6) is arranged between an upper rotary disc (7) and a lower rotary disc (8); the left guide rod and the right guide rod are arranged on the outer side of the track wheel in parallel and fixed to the upper rotary disc and the lower rotary disc; the track wheel is of a cone structure, and a plurality of irregular tracks (9) are arranged on the track wheel in the circumferential direction; the apparatus body, the leg separating device, the chest positioner, the wing positioner and the chest pressing device are driven by the upper rotary disc and the lower rotary disc to rotate circumferentially; the apparatus body, the leg separating device, the chest positioner, the wing positioner and the chest pressing device respectively move up and down and swing on the left guide rod and the right guide rod along the tracks on the static track wheel. The apparatus body comprises a fixed arm (16) and a swinging arm (17); a clamping finger (33) capable of freely moving is arranged at the end of the swinging arm; water and gas channels are formed in the fixed arm and the swinging arm. Frictional damage of a clamping apparatus to the liver (109) is reduced, and the gastroesophagus (105) can smoothly enter an opening of the clamping finger. C: Disclosed is a mechanical power outputting device, comprising a fitting seat (20), characterized in that a turntable (1) is hinged on the fitting seat (20), two U-shaped holes (2, 5) are provided on the turntable (1), a movable plate (14) is movably mounted in the U-shaped holes (2, 5), hooks (6, 11) are respectively provided on parts of the turntable (1) above or below the movable plate (14), a retractable arm (31) and balancers (15, 17) are mounted on the movable plate (14), a track guiding element (28) guiding the offset direction of the movable plate (14) is provided above the U-shaped holes (2, 5), the track guiding element (28) being mounted on the fitting seat (20), a snapping position (27) for controlling the rotation of the turntable (1) is further provided on the periphery of the turntable (1), and a snap (25) corresponding to the snapping position (27) is provided on the fitting seat (20). The retractable arm (31), the snap (25) and the track guiding element (28) are connected to a control box (26) to control the actions thereof. A protruding output shaft (24) is further provided on the turntable (1), and rollers (21, 22, 23) are respectively provided on the inner sides of upper and lower ends of the movable plate (14) and the balancers (15, 17). The mechanical power outputting device has a wide power range and a simple structure, can be driven in various manners and is convenient to use. D: An electric-mechanical dual-control household smart lock, comprising a mechanical clutch structure and a smart electric control structure; the mechanical clutch structure comprises a lock cylinder (11), a rebound spring bolt (12), a first round rotation plate (13) and a fixed seat (14), the rebound spring bolt (12) is fixed onto the fixed seat (14), the end portion of the rebound spring bolt (12) extends out from the fixed seat (14), an arc-shaped guide rail (121) fitted with the first round rotation plate (13) is provided on one surface of the rebound spring bolt (12), the lock cylinder (11) is connected to the rebound spring bolt (12) by means of the first round rotation plate (13), a key is inserted into the lock cylinder (11) to rotate and drives the first round rotation plate (13) to rotate, and the end portion of the rebound spring bolt (12) retracts into the fixed seat (14); the smart electric control structure comprises a PCB board (21), a motor (22), a telescopic set (23) and a second round rotation plate (24), the PCB board (21) is electrically connected to the motor (22), one end of the telescopic set (23) is fixedly connected to the motor (22) and the other end of the flexible set (23) is fixedly connected to the second round rotation plate (24), an arc-shaped guide rail (121) fitted with the second round rotation plate (24) is provided on the other surface of the rebound spring bolt (12), the telescopic set (23) drives the second round rotation plate (24) to rotate, and the end portion of the rebound spring bolt (12) retracts into the fixed seat (14).

A

Please select the most similar patent number from A, B, C and D. Which number is? A dynamic information warning apparatus for a bicycle comprises a signal output module (3) used for displaying dynamic information of the bicycle in real time, and a control module (2) in signal connection with the signal output module (3) directly or through a mobile terminal. The control module (2) is in signal connection with a collection module (1) used for collecting motion state information of the bicycle. In working, the collection module (1) detects acceleration changes of a running bicycle in real time; a control input circuit (21) picks up steering information by means of a control rod, a key or the like; a corresponding signal is sent to the signal output module (3) directly or through the mobile terminal; the signal output module (3) visually indicates, according to a signal output by the control module (2), information such as braking force, braking states, left turning and right turning by means of the brightness, colors and a flickering mode of a warning unit (31) or through pictures or characters displayed by the warning unit (31); and pedestrians or vehicles behind the bicycle can be reminded to avoid the bicycle, so that a rider is self-protected and the riding risk is reduced. A: Provided are a shift register, a gate driving circuit and a related display device, comprising: a first node control module (1); a second node control module (2); a third node control module (3); a first output module (4); and a second output module (5). The first node control module (1) adjusts an electrical potential at a first node (A). The second node control module (2) adjusts an electrical potential at a second node (B). The third node control module (3) adjusts an electrical potential at a third node (C). The first output module (4) adjusts an electrical potential at a driving signal output terminal (Output). The second output module (5) adjusts the electrical potential at the driving signal output terminal (Output). The shift register can control a duration of a scan signal outputted from the driving signal output terminal (Output) by changing only a duration of an inputted signal (Input) via cooperation of the above five modules, without needing to change clock signals (CK, CB), modify a circuit or change a related process. Therefore, complexity of a gate driving circuit and a related process can be reduced, thereby reducing costs. B: An automatic-induction warning apparatus of a bicycle comprises a signal warning apparatus (1), a bicycle running state signal inductor (2), and a corresponding power supply. The bicycle running state signal inductor (2) is in signal connection with the signal warning apparatus (1). The signal warning apparatus (1) comprises a light-emitting warning pattern apparatus (11), a power supply circuit (12), a control circuit board (13), and a storage battery (14). The light-emitting warning pattern apparatus (11), the power supply circuit (12) and the storage battery (14) are electrically connected to the control circuit board (13). The bicycle running state signal inductor (2) transmits a signal to the control circuit board (13). The control circuit board (13) controls the light-emitting warning pattern apparatus (11) to display a light-emitting warning pattern (15) of a bicycle running state. The warning apparatus has a safety warning effect, and accordingly, occurrence of a vehicle collision accident can be avoided; and the warning apparatus is simple in structure, good in warning effect, safe and reliable. C: A voice interactive recognition control system, comprising an audio signal acquisition module (1), an emotion recognition and determination module (2), a voice intelligent generation module (3), a voice output module (4), a control module (5) and a wireless transceiving module (6) connected to one another. The audio signal acquisition module (1) is used for acquiring and filtering external input voice information; the emotion recognition and determination module (2) is used for performing emotion recognition according to the external input voice information and determining a grammatical sense and an emotion category of the input voice; the voice intelligent generation module (3) is used for generating corresponding response voice information according to the grammatical sense and the emotion category of the input voice and sending the response voice information to the voice output module (4) or the control module (5); and the control module (5) is used for sending a control instruction to a corresponding intelligent device according to the received response voice information. Humanized control to the intelligent device is achieved by means of voice interaction. D: A shift register and a drive method therefor, a grid drive circuit and a display device. The shift register comprises an input module (1), an output module (2) and an output control module (3); the output module (2) comprises a first output unit (21) and a second output unit (22), wherein a first node (P) controls the first output unit (21), the first output unit (21) controls signal transmission between a second clock signal input end (CK2) and a signal output end (OUT-PUT), a second node (Q) controls the second output unit (22), and the second output unit (22) controls signal transmission between a high/low level signal input end (VGH/VGL) and the signal output end (OUT-PUT); the output control module (3) comprises a first control unit (31) and a second control unit (32), wherein the first control unit (31) controls the level of the first node (P), and the second control unit (32) controls the level of the second node (Q). According to the solution of the present disclosure, impact of the change in a clock signal associated with the output module on an output signal can be reduced, thus improving the output effect of the shift register.

B

Please select the most similar patent number from A, B, C and D. Which number is? A power-assisted bicycle with a mid-mounted motor, comprising a frame and a mid-mounted motor driving system mounted on the frame. The mid-mounted motor driving system comprises a motor (2), a controller (3), a battery (4), and a transmission system (5); the transmission system (5) is provided on the lower end of an inclined pipe (1); at least the motor (2) in the motor (2), the controller (3), and the battery (4) is provided in the inclined tube (1) of the frame; a driving unit of the motor (2) is in driving connection with the transmission system (5); the controller (3) is in signal connection with the motor (2); and the battery (4) is electrically connected to the motor (2) and the controller (3) to supply working power. A: Disclosed is an electric vehicle, comprising a chassis (1), a vehicle body and a power battery (71), wherein the chassis (1) comprises a frame system (2), a steering motor damping system (13) mounted on the frame system (2), a wheel system (12) connected to the steering motor damping system (13), a steering system (3) mounted on the frame system (2), and a braking system (4) mounted on the frame system (2); and the wheel system (12) comprises a left front wheel (121) using a hub motor, a left rear wheel (123) using a hub motor, a right front wheel (122) using a hub motor, and a right rear wheel (124) using a hub motor. Driving the wheels (121, 122, 123, 124) with the hub motors can omit a traditional mechanical transmission system, so as to simplify the structure of the chassis (1) and reduce the weight of the chassis (1). Compared with a traditional electric vehicle, the electrical vehicle has a lighter weight, smaller volume, reduced mechanical transmission loss, and improved electrical energy utilization rate. B: A hybrid drive system comprises a power battery device (1), a range extender system (2), and a motor driving system (3); the power battery device (1) is configured to supply power for the motor driving system (3); the range extender system (2) comprises an engine (201) and a generator (202); the generator (202) can be driven by the engine (201) to generate power so as to supply power for the motor driving system (3) and/or charge the power battery device (1); the hybrid drive system further comprises a vehicle control unit configured to control the engine (201) and/or the generator (202) of the range extender system (2) to generate driving force; the range extender system (2) is mechanically connected to a main coupling mechanism (4), so that the generated driving force is transmitted to a main driving axle (5) of the vehicle by means of the main coupling mechanism (4) to drive wheels on both sides of the axle (5) to rotate. Also provided is a vehicle having the hybrid drive system. According to the hybrid drive system and the vehicle having same, the vehicle control unit is utilized to control the engine (201) and/or the generator (202) of the range extender system (2) to generate driving force for different application conditions, and thus the economy of the vehicle can be effectively improved. C: Disclosed is a multi-functional children's scooter provided with a power device. The scooter comprises a frame (1), wheels (2), a handlebar (3) and a saddle (4). A controller (5), an electric motor (6) and a battery (7) are mounted in the middle of the frame (1). The battery (7) is mounted inside a tube body of the frame (1) and is connected to the controller (5). The handlebar (3) is provided with a brake handle and a power switch (8). The power switch (8) is connected to the controller (5). The wheels (2) comprise a front wheel and a rear wheel. One side of the rear wheel is provided with a driven gear, and a brake is mounted on the other side of the rear wheel. The brake is connected to the brake handle by means of a brake cable. A brake sensor (9) connected to the controller (5) is mounted in the brake. The electric motor (6) is connected to the controller (5). An electric motor shaft of the electric motor (6) is connected to a drive gear, and the drive gear is connected to the driven gear by means of a transmission chain. The scooter is additionally provided with a power device, can be used, instead of walking on a short trip, by children when playing independently, and can also be used instead of walking on a longer trip, e.g. going out with parents for a ride, and frees the feet of the children when the children ride the scooter, thereby increasing the fun for the children enjoying the scooter. D: A central drive device and a bicycle having said device. The central drive device comprises a housing, a motor (1) provided in the housing, a speed reduction mechanism, a central shaft (11) and a crankset device, the speed reduction mechanism being in transmission connection with the motor (1), the central shaft (11) being used for being connected to a pedal device and being rotatably provided in the housing, and said device further comprises a first clutch (5); the first clutch (5) has one end connected to an output end of the speed reduction mechanism, and the other end connected to the crankset device; the first clutch (5) comprises a transmission state and a release state; the crankset device is connected to the central shaft (11) by means of a second clutch (7), such that the central shaft (11) drives the crankset device to rotate; in a power-assist operating mode, the first clutch (5) enables transmission connection between the output end of the speed reduction mechanism and the crankset device, such that the output end transmits power to the crankset device; and in a non-power-assist operating mode, the first clutch (5) disconnects the power connection between the output end of the speed reduction mechanism and the crankset device. Such a central drive device can enable a person to pedal a bicycle in a lighter and less laborious manner.

D

Please select the most similar patent number from A, B, C and D. Which number is? A time difference pressure distribution and output device comprises a pressure chamber member (1), a time difference chamber member (2), a pressure transmission member (3), and a time difference transmission member (4). The pressure transmission member (3) is slidably disposed on the pressure chamber member (1) and is connected to a first actuator (B3). The time difference transmission member (4) is slidably disposed on the time difference chamber member (2) and is connected to a second actuator (B4). By means of pressure adjustment, the sliding time of the pressure transmission member (3) is ahead of the sliding time of the time difference transmission member (4), thereby allowing the two actuators (B3, B4) to successively act. A: Provided are an on-line temporary storage device and a control method and control apparatus therefor, and a transmission system. The on-line temporary storage device comprises: a bracket component (11), which is located in a perpendicular direction of an output sheet transmission platform (1C) and is parallel to the output sheet transmission platform (1C), and is used for temporarily storing target objects; and a transmission component (12), which is located on a side of a horizontal direction of the output sheet transmission platform (1C), and is used for putting the target objects into the bracket component (11) and taking the target objects out of the bracket component (11) and transmitting same to the output sheet transmission platform (1C). By means of the on-line temporary storage device and the control method, control apparatus and transmission system therefor, the damage rate during object transmission can be reduced, the transmission reliability is improved, multiple choices are added for a sheet taking mode, and the temporary storage quantity of the on-line temporary storage device can also be increased. B: A weight sensing device comprises at least one airbag (1) and an object sensing circuit (2). The airbag (1) comprises a space (11) therein. The space (11) is filled with a gas (12). The object sensing circuit (2) is arranged in the space (11) of the airbag (1). The object sensing circuit (2) comprises a microcontroller unit (21), a battery unit (22), a boost converter/voltage regulator loop unit (24), a gravity sensor unit (23), a pressure sensor unit (25), and a data transmission unit (27). When the airbag (1) is squeezed, the gravity sensor unit (23) is configured to sense a displacement and activate the battery unit (22) to provide a power supply to the object sensing circuit (2) for operation. Subsequently, the pressure sensor unit (25) is configured to sense that the space (11) of the airbag (1) is squeezed, generate a pressure change value accordingly, and transmit the pressure change value to the microcontroller unit (21) for further processing. The microcontroller unit (21) is configured to transmit the data via the data transmission unit (27) to a software built-in in electronic equipment (4), to enable to the software built-in in the electronic equipment (4) to receive a pressure change state when the airbag (1) receives a pressure. In doing so, a user holding the electronic equipment (4) can know a weight change state during a movement. The device only activates detection upon the gravity sensor unit (23) senses a displacement, and remains inactivated in a normal state, and is a low-power sensing device. C: A shelter structure is disclosed. An upper hub (1) is mounted on a guide tube (4). The guide tube (4) is telescopically disposed on a top portion (8) of a support tube (5), and is movable relative to the top portion (8) of the support tube (5). The guide tube (4), and a slider (3), a sleeve or a runner are connected to each other via a flexible traction member (6) to form a flexible traction mechanism. One end of the flexible traction member (6) is securely mounted on the slider (3), and the other end is securely mounted on a counterweight member (7). When the umbrella is to be closed, the slider (3) is moved downward along the support tube (5), and the sliding device pulls the flexible traction member (6) to lift the counterweight member (7) upwards. When an upper end of the counterweight member (7) is brought into contact with a lower end of the guide tube (4), the guide tube (4) is pushed upwards by the counterweight member (7), and the upper hub (1) is lifted. At the same time, the ribs (9a) pivotably connected to the upper hub (1) are driven to be lifted. In a second embodiment, a free pulley system is additionally provided for labor-saving purposes. The pulley system is composed of an additional push rod (11) telescopically disposed in the support tube (5) and the guide tube (4), and operable through a device such as an additional traction member. On closing of the umbrella, the push rod (11) is driven to move by the counterweight member (7), and the guide tube (4) is pushed upwards by the push rod (11). D: Disclosed are a hydraulic-type time-difference brake apparatus and an assembly thereof, wherein the hydraulic-type time-difference brake apparatus at least comprises a driving mechanism (1) disposed on a push block (10) at the uppermost portion of a chamber (20) of a housing (2). The driving mechanism (1) is activated, via a brake operation module (A1), to enable a set displacement of the push block (10), so as to drive a first piston (30) of a first pump mechanism (3) to be displaced in real time to output a first braking force to a rear wheel brake (50). Once the first piston (30) of the first pump mechanism (3) reaches a point within the time difference from the set displacement, a second piston (40) of a second pump mechanism (4) will be involved and pushed to move, so as to output a second braking force to a front wheel brake (51).

D

Please select the most similar patent number from A, B, C and D. Which number is? A lightweight foldable mobility scooter provided with front, rear, left and right lifting handles. The scooter comprises a scooter bottom plate (1), wherein two sides of the scooter bottom plate (1) are respectively provided with a scooter bottom plate lifting handle (2); the two scooter bottom plate lifting handles (2) are respectively located at two sides of the scooter bottom plate (1), and are positioned at the center of gravity after the mobility scooter is folded; and a scooter head lifting handle (3) is provided at a scooter head of the scooter bottom plate (1), and a tail portion of the scooter bottom plate (1) is provided with a scooter tail groove portion (4) used for cooperating with the scooter head lifting handle (3) for carrying. A: Disclosed is a chassis collision structure for a new energy vehicle, the chassis collision structure sequentially comprising, in the direction from the front of the vehicle to the rear of the vehicle, a front lower anti-collision beam assembly (1), a front subframe assembly (2), a front battery pack lower protection plate (3), a rear battery pack lower protection plate (6), and a rear subframe assembly (5), wherein the front lower anti-collision beam assembly (1) is connected to the front end of the front subframe assembly (2); the front battery pack lower protection plate (3) is connected to the bottom of the front subframe assembly (2); the rear battery pack lower protection plate (6) is connected to the bottom of the rear subframe assembly (5); and two ends of the front battery pack lower protection plate (3) and the rear battery pack lower protection plate (6) that are close to each other are respectively provided with a connection portion connected to a battery pack (8). According to the new energy vehicle chassis collision structure, a collision system is formed at the position of the chassis of the vehicle, and can guide the structure of the chassis to generate or increase deformation in a particular area so as to improve the collision performance of the chassis of the new energy vehicle. B: A foldable balance vehicle, comprising wheel mechanisms (1), a foot board mechanism (2), folding apparatuses, and balance devices (22), the foot board mechanism (2) is a sunken down-type foot board mechanism mounted at lower parts of the wheel mechanisms (1), two sides of a left foot board (23) and a right foot board (24) are both provided with balance devices (22), each wheel mechanism (1) is provided with a folding apparatus, each folding apparatus comprises a rotating folding mechanism and a locking mechanism, each locking mechanism comprises a locking mechanism mounted on the foot board mechanism (2), one end of each rotating folding mechanism is rotatably connected to a wheel mechanism (1), and the other end is rotatably connected to the foot board mechanism (2); the wheel mechanisms (1), by means of the rotating folding mechanisms, can be turned and folded to fit under the foot board mechanism (2). The sunken down-type foot board has a lower center of gravity, the folding apparatuses allow each wheel to be independently folded, which lowers folding difficulty, and when folding, only a relatively small amount of force is needed to fold the wheels; upon folding, the wheel fits close to the foot board, which reduces space needed for storage, and the wheels are balanced under the foot board, achieving more stable placement compared to opposingly folded-type balance vehicles. C: A locomotive structure for an electric multiple unit. In the locomotive structure for an electric multiple unit, the tail ends of a first side wall (1), a second side wall (2), and a roof (4) are all connected to a ring frame (5); a group of first main lengthwise beams (6) are provided at each of the intersection between the first side wall (1) and the roof (4) and the intersection between the second side wall (2) and the roof (4); each group of first main lengthwise beams (6) extend from a front wall (3) of the locomotive structure for an electric multiple unit to the ring frame (5); multiple second main lengthwise beams (7) arranged side by side are provided below a window on the first side wall (1) and below a window on the second side wall (2), separately; a second main lengthwise beam (7) is separately provided at a position at the lower part of the first side wall (1) for connection to the underbody and a position at the lower part of the second side wall (2) for connection to the underbody; each of the second main lengthwise beams (7) extends from the front wall (3) to the ring frame (5); multiple parallel vertical beams (8) are provided on each of the first side wall (1), the second side wall (2), and the roof (4), and the vertical beams (8) are perpendicular to the traveling direction of the electric multiple unit. D: A pet cage having a movable push-pull base plate comprises a pet cage frame (1), a movable base plate (2), side plates (3), and a top plate (4). The side plates (3) are respectively fixed to front, rear, left and right portions of the pet cage frame (1). The movable base plate (2) is movably disposed at a bottom portion of the pet cage frame (1). The top plate (4) is fixed to a top frame portion of the pet cage frame (1). Two side edges of the movable base plate (2) are provided with movable guide wheels (5). Two inner sides of a bottom frame portion of the pet cage frame (1) have guiding grooves fitting with the guide wheels (5). A lower portion of the movable base plate (2) is provided with a caster structure (6). The movable base plate (2) is freely movable forward and backward within the bottom frame portion of the pet cage frame by means of the guide wheels (5) and the guiding grooves.

B

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed is a circular reciprocation conversion mechanism for a bicycle. The circular reciprocation conversion mechanism comprises two discs (1, 2) with opposite centers, and a transmission shaft (3) arranged between the two discs (1, 2) and parallel to the direction of a disc surface. The two discs (1, 2) are rotatably arranged on a connecting rod (5); a rotary handle (10, 20) is provided on each of the discs (1, 2); and raised teeth (6) are circumferentially distributed on an inner side surface of each of the discs (1, 2). The transmission shaft (3) is arranged in the direction of the diameter of the circular discs (1, 2) and is sleeved with a first gear (41) and a second gear (42). The first and the second gear (41, 42) are respectively connected to the transmission shaft (3) via two one-way transmission structures with opposite transmission directions, and the first and the second gear (41, 42) respectively engage, at front and back ends of the discs (1, 2), with the raised teeth (6) on the inner sides of the discs. A drive force is generated by converting the up-and-down reciprocating motion of pedals (11, 12) into the circumferential motion of the transmission shaft (3) so as to drive a bicycle to move forward. Conventional circumferential motion is replaced by reciprocating motion, such that unnecessary work can be reduced, thereby saving on the physical strength of a user. A: A method and device for converting rotary motion to reciprocating percussion motion. The device comprises a machine body (4), a travel portion (7), and a reciprocating percussion portion (5). The reciprocating percussion portion (5) comprises a percussion drive mechanism (2), a rocker arm (6), and a percussion head (1). The percussion drive mechanism (2) comprises a percussion power source member (11), a transmission component, and a crankshaft (10). The percussion power source member (11) comprises a motor, and the motor comprises a power output shaft (14). The transmission component comprises a power gear (13) and a transmission gear (12). The power gear (13) is mounted on the power output shaft (14). The transmission gear (12) drives the crankshaft (10). The transmission component comprises a transmission shaft. The power output shaft (14) is perpendicular to the rocker arm (6), and is parallel to the transmission shaft and the crankshaft (10) so that the transmission gear (12) drives the crankshaft (10) to convert rotary motion to reciprocating motion; or the power output shaft (14) is parallel to the rocker arm (6), the crankshaft (10) is driven to convert rotary motion to reciprocating motion after the power direction is changed by a power bevel gear and a transmission bevel gear. The crankshaft (10) drives the percussion head (1) to perform reciprocating percussion. The travel portion (7) drives the machine body to travel. The machine body (4) drives the reciprocating percussion portion (5) to move and work continuously. The device applies to the mining field or mechanical engineering field, and has advantages such as strong structural strength and a small amount of maintenance. B: A spur-type vehicle tire energy recovery assembly comprises a hub (1), a tire (2), an output shaft (3), a transmission mechanism (5), and multiple energy acquisition devices (4). The output shaft (3) is rotatably connected to the hub (1), and the two are coaxially disposed. The energy acquisition devices (4) comprise a first gear (41) rotatably connected to the hub (1), and a rack (42) capable of sliding in a radial direction of the hub (1). The first gear (41) meshes with the rack (42), and one end of the rack (42) abuts an inner wall of the tire (2). The transmission mechanism (5) comprises a planetary gear set and a second gear (51). The planetary gear set comprises an outer teeth ring (52), a planetary gear (53), a planetary carrier (54), and a sun gear (55). The sun gear (55) is connected to the output shaft (3). The planetary carrier (54) is fixedly connected to the hub (1). Gear teeth (521) are disposed at the outer circumference of the outer teeth ring (52). The gear teeth (521) mesh with the second gear (51). The second gear (51) is fixedly connected to the first gear (41), and the two are coaxially disposed. The first gear (41) and the rack (42) of the energy acquisition devices (4) mesh to convert linear motion of compression and deformation of the tire (2) into rotational motion of the first gear (41), and then power of the multiple energy acquisition devices (4) is transmitted to the output shaft (3) via the transmission mechanism (5), thereby completing energy recovery from deformation of a tire (2). C: Disclosed is a transmission device which comprises a cylinder (1), a piston (2), a rack (3), a first gear (5), a second gear (6), a first linkage gear (9), a first shaft (7), a second linkage gear (10) and a second shaft (8), wherein one end of the rack is fixedly connected to the piston; the piston is arranged inside the cylinder, and the other end of the rack is arranged outside the cylinder; one end of the first shaft is locked with the first gear, and the other end thereof is locked with the first linkage gear; one end of the second shaft is locked with the second gear, and the other end thereof is locked with the second linkage gear; the first linkage gear is meshed with the second linkage gear; the piston runs from an upper dead point to a lower dead point, and the rack only drives the first gear to rotate; and the piston runs from the lower dead point to the upper dead point, and the second gear drives the rack to move. The transmission device not only can realize that the reciprocating motion of the piston is converted into circumferential motion, but also can ensure no transmission dead angle in the whole conversion process, with small energy loss. D: A transportation means (1, 2) using a device (11, 21) for converting reciprocating rectilinear motion into single-direction circular motion. The transportation means (1, 2) comprises a power output mechanism (12) and two rotating shafts (13) that are oppositely disposed. A circular motion output mechanism (114) of the device (11, 21) for converting reciprocating rectilinear motion into single-direction circular motion is transmittingly connected to the power output mechanism (12). Each reciprocating rectilinear motion mechanism (112, 212) comprises an elongated pedal (1121, 2121). A bendable portion (11211) is disposed at the end of the elongated pedal (1121, 2121) distant from the device (11, 21) for converting a reciprocating rectilinear motion into a single-direction circular motion. The bendable portion (11211) is in rotational connection with the rotating shaft (13) by means of a torsional spring (131), so that when the bendable portion (11211) rotates around the corresponding rotating shaft (13), the end of the elongated pedal (1121, 2121) proximate to the device (11, 21) for converting reciprocating rectilinear motion into single-direction circular motion performs small-curvature near-rectilinear motion. The transportation means (1, 2) enables a rider to ride more comfortably with less effort.

D

Please select the most similar patent number from A, B, C and D. Which number is? A bidirectional transmission device for a bicycle, which comprises a large sprocket, a frame, an extended circular chain, a small sprocket I, a small sprocket II, a guide wheel, a ratchet device I and a ratchet device II, wherein the large sprocket rotates around a shaft on the frame, a segment of the extended circular chain is connected to the large sprocket and the top of the small sprocket I, a segment thereof is connected to the bottom of the large sprocket and the top of the small sprocket II, bypasses the small sprocket I and the small sprocket II and then is connected to the guide wheel, respectively, when the large sprocket rotates clockwise, it drives the small sprocket I to rotate clockwise, and the small sprocket I drives a rear wheel shaft to rotate forward through the ratchet device I, at the moment, the small sprocket II rotates counterclockwise and the ratchet device II rotates idly, when the large sprocket rotates counterclockwise, it drives the small sprocket II to rotate clockwise, and the small sprocket II drives the rear wheel shaft to rotate clockwise through the ratchet device, at the moment, the small sprocket I rotates counterclockwise and the ratchet device rotates idly, so that the rear wheel shaft rotates in one direction all the time. A: Disclosed is a rotary trash-cleaning machine having an electric motor not prone to damage. Annular tracks are arranged on two sides of a machine frame; an annular chain is arranged in each annular track; the top of each annular track is provided with an opening; a driving shaft is arranged at the opening; two gears are arranged on the driving shaft; collection shafts are arranged on the annular chain; and a drive assembly for driving the driving shaft to rotate is arranged at one end of the driving shaft. The drive assembly comprises a driven chain wheel located on the driving shaft, and an electric motor located on the machine frame, wherein a driving chain wheel is arranged on an output shaft of the electric motor; the driven chain wheel and the driving chain wheel are connected by means of a conveying chain; the output shaft of the electric motor and the driving chain wheel are connected by means of a connecting sleeve, and the connecting sleeve comprises a circular sleeve and a flange plate located at one end of the circular sleeve; and the driving chain wheel is connected to the flange plate by means of a shear pin. In the present utility model, a shear connection is added between the output shaft of the electric motor and the driving chain wheel, such that when the electric motor is overloaded, the shear pin cannot bear an output torque of the electric motor, the shear pin is broken, the driving chain wheel does not rotate any more, and the rotary trash-cleaning machine stops running. B: Provided is a manual hoist (1), comprising: a manual chain wheel (2), a manual chain (3) borne on the manual chain wheel (2) and used for driving the manual chain wheel (2), and a gear shaft (4) driven by the manual chain wheel (2). The manual hoist (1) further comprises: a first load-lifting chain wheel (5) sheathed on the gear shaft (4) and rotating synchronously with the gear shaft (4); a gear set having a driving gear (6) and a driven gear (7), the driving gear (6) being sheathed on the gear shaft (4) and rotating synchronously with the gear shaft (4), and the driven gear (7) driving the rotation of a driving shaft (8); a second load-lifting chain wheel (9) sheathed on the driving shaft (8) and rotating synchronously with the driving shaft (8); an endless load-lifting chain (10) which passes around the first load-lifting chain wheel (5) in a clockwise or counter-clockwise winding direction with a buffer section (11) being left, and then passes around the second load-lifting chain wheel (9) in a winding direction opposite to the first load-lifting chain wheel (5) with a load-bearing section (12) being left, and then goes back to the first load-lifting chain wheel (5). The present manual hoist significantly increases the speed at which heavy goods are lifted, and is especially suitable for use with heavy goods requiring long-distance lifting, thereby improving load-lifting efficiency of the manual hoist. C: Disclosed is a reverse clutch device for a bi-directionally driven bike, which device comprises a sprocket shift controller (1), an outer sprocket assembly (2) and an inner sprocket assembly (3). The sprocket shift controller comprises a four-linkage mechanism composed of a supporting frame (11), a pulling bar (12), a shifting plate (13) and a connecting plate (14) hinged successively to each other at the back of the bike tube, with the supporting frame mounted on the tube of the bike. The outer sprocket assembly is fixed on a middle shaft (4b), and a pin assembly (21) is provided on the outer sprocket assembly. The inner sprocket assembly is sheathed on the middle shaft, and is arranged parallel to the outer sprocket assembly, the inner sprocket assembly being provided with a shifting ring (7) connected to the shifting plate; a spring (5) is sheathed on the middle shaft and is located between the inner sprocket assembly and a five-way piece (4c) of the bike; the inner sprocket assembly is provided with a pin hole (31) at the position corresponding to the pin assembly; and the sides of the inner sprocket assembly and the outer sprocket assembly facing each other are respectively provided with a magnet block (6a) and an iron block (6b). By means of operating a handle (16) to move the pulling bar, the inner sprocket assembly moves along the middle shaft, inserting or disengaging the pin assembly into/from the pin hole. D: Provided are a driving device (2) suitable for a hand strap (1) at the lower end of escalator and an escalator, wherein the driving device (2) comprises a transition sprocket (11), a minor sprocket (14) arranged on a step sprocket (15) and a drive sprocket (9) arranged on a rotating wheel (16) at the end of a handrail, the transition sprocket (11), the minor sprocket (14) and the drive sprocket (9) are positioned on the same side of the escalator, a first drive chain (10) is arranged between the transition sprocket (11) and the drive sprocket (9), a second drive chain (12) is arranged between the transition sprocket (11) and the minor sprocket (14). The structural design of the driving device (2) is reasonable, and does not require extra power source, the driving device (2) is powered by the rotating step sprocket (15), the hand strap (1) has good synchronism and low fault rate.

C

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed are a multi-anchor point mooring power installation anchor (1) and an installation method therefor, belonging to the technical field of ocean engineering. The multi-anchor point mooring power installation anchor (1) has a plurality of anchor eyes (103), can be simultaneously connected to a plurality of floating structures (10), and therefore, is very suitable for the fields of offshore wind turbines, marine pastures, offshore solar power generators, etc. arranged in groups or clusters. The design of the multi-anchor point mooring power installation anchor (1) helps to reduce or even eliminate the horizontal load acting on an anchor body (101), so that the load acting on the anchor body (101) is mainly vertical uplift load, optimizing the load mode of the anchor body (101) and helping to improve the bearing efficiency of the anchor body (101); and the design of normal wing plates (106) helps to reduce the resistance to a combined anchor (4). During the recovery of a booster (2), the normal wing plates (106) gradually extend out of the anchor body (101), increasing the normal load area of the multi-anchor point mooring power installation anchor (1), thereby significantly improving the bearing efficiency of the anchor. Therefore, the anchor has high installation efficiency, low cost, high bearing efficiency and good load mode, and can significantly reduce the installation cost of an anchoring foundation. A: The present invention relates to the technical field of marine renewable energy application, and particularly relates to a deep sea energy integration system based on a floating fan and a tidal current energy apparatus, being of a power generation structure having fans with a Spar platform as a foundation and integrating vertical axis tidal current energy, and comprising a Spar floating type wind power generation system and a tidal current energy power generation system. The Spar floating type wind power generation system of the present invention is simple in structure and high in stability, is suitable for middle and far sea areas, and is simple and convenient to mount and wide in application water depth. By combining an offshore wind power generation apparatus with the tidal current energy power generation apparatus to share the Spar platform, an anchor mooring line, a voltage transformation device, and a power transmission device, the power generation performance of the system is improved, the total power generation capacity is increased, marine renewable energy sources are effectively utilized, the investment costs are reduced, and the commercial application is accelerated. An external support of the tidal current energy power generation system of the present invention is of a cylindrical shape, thereby reducing wave loads, utilizing the tide current energy to the maximum extent, and moreover, ensuring the stability of the structure. B: A combined power anchor (100) having a folding anchor shank, comprising a plate-shaped anchor (1) having a folding anchor shank, a counterweight shaft (2), an extension rod (4), tail wings (5) and a recovery hole (6) in sequence from bottom to top. The plate-shaped anchor (1) is mainly composed of a wing plate (11), an anchor shank (12), a support (13) and a connecting rod (17); the counterweight shaft (2) is mainly composed of a semi-ellipsoidal front end (22), a cylindrical middle connecting section (21) and a truncated cone-shaped tapered tail end (23); the extension rod (4) is a cylindrical rod, and the cross-sectional dimension thereof is consistent with the minimum cross-sectional dimension of the tapered tail end of the counterweight shaft (2); the tail wings (5) are installed on the extension rod (4) near the tail end, and is located below the recovery hole (6); and the tail wings (5) include plate-shaped tail wings (5a) and arc-shaped tail wings (5b). The central axes of the plate-shaped anchor (1), the counterweight shaft (2) and the extension rod (4) of the folding anchor shrank are collinear. Further comprised is a method for controlling perpendicularity of the combined power anchor having the folding anchor shank during dropping in water. The present invention can increase the installation success rate of power anchors, and reduce the installation cost. C: A method and semisubmersible equipment for electricity generation with marine energy. The method is implemented by means of a separately constructed offshore platform or based on an existing offshore platform. Electricity generating equipment and an impeller (8) mechanically connected to the electricity generating equipment are mounted on the platform. Blades (12) of the impeller (8) are arranged perpendicular to the direction of a fluid flow along the water surface. The upper part of the impeller (8) is arranged above the sea surface; the lower part is submerged in seawater. The ocean pushes the impeller (8) to rotate, thereby driving the electricity generating equipment to generate electricity. When the blades (12) are rotating in the circumferential direction, the blades (12) underwater continuously work under a fluid thrust, and the blades (12) in the air are free from the effects of fluid impact resistance even while moving in the direction opposite that of the fluid flow, thus greatly reducing power loss, and increasing electricity generation efficiency. In addition, the rotation of the impeller (8) and the structural design of the blades (12) increase the thrust applied to a main shaft of the impeller (8), reduce water energy loss, and increase ocean energy conversion efficiency. Moreover, a housing (11) sleeved on the impeller (8) allows the screening of ocean winds of different directions and the reasonable utilization of the thrust of a same-direction wind to increase the electricity generating capacity of the electricity generating equipment. D: Provided is a protective device (100) for an offshore wind power base submarine cable, the protective device comprising: a connecting flange (101), an intermediate tube body (102), a tapered connecting tube (103), and a connector (104). The protective device (100) for the offshore wind power base submarine cable has a simple overall structure and does not need segmented mould making during manufacturing so the production cost is reduced. During installation and use, the length of the intermediate tube body (102) can be increased or decreased according to actual requirements, the overall installation is easy and the assembly work of the protective device (100) for the offshore wind power base submarine cable can be completed quickly and efficiently, thereby increasing the installation efficiency in actual use and reducing the duration and workload related to the installation work. Moreover, the protective device may be connected to a cable conduit on a wind power generator via the connecting flange (101) so as to achieve the protection of an output cable (300) of the wind power generator.

B

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed are a jellyfish-type underwater detector and a detection method therefor. The underwater detector comprises a detection robot and a remote terminal. The detection robot comprises a housing (1), a bionic muscle, an elevator (9), a driving unit, a steering control unit (3), and a plurality of visual sensing units (2); and the remote terminal comprises a signal processing unit mounted in the housing (1) in a sealed manner, and a virtual reality headset in remote connection with the signal processing unit. The underwater detector moves agilely underwater and is highly reliable. A: An ultrasound underwater detection method for an unmanned aerial vehicle co-driven by air rotors (1 and 2) and a propeller (8). The ultrasound underwater detection method for the unmanned aerial vehicle co-driven by the air rotors (1 and 2) and the propeller (8) moves and balances the unmanned aerial vehicle by controlling the air rotors (1 and 2) above the unmanned aerial vehicle and the underwater propeller (8) below the stern, and comprises the following steps: receiving a control command to obtain the position of a detection fixed point; flying to the detection fixed point; using a posture instrument (12) to measure and record the posture of the unmanned aerial vehicle and compiling statistics on the direction of wave motion; controlling the unmanned aerial vehicle to orient perpendicular to the direction of wave motion; controlling the unmanned aerial vehicle to cruise around the detection fixed point; controlling an ultrasond microarray (10) to collect a parameter of an area of water, maintaining the posture of the unmanned aerial vehicle; if scan detection is required, changing the roll angle and the yaw angle of the unmanned aerial vehicle to perform detection; if the detection of the area of water at the fixed point is completed, then receiving a control command and flying to the next detection fixed point; and if not, then continuing flight and detection. The underwater detection method for the unmanned aerial vehicle co-driven by the air rotors (1 and 2) and the propeller (8) increases the detection speed and detection precision of the unmanned aerial vehicle. B: An underwater robot having a sonar detection device, comprising a robot body (1). A hollow container (2) is provided on each side of the robot body (1), connecting rods (7) are provided on a lower end of the robot body (1), hollow columns (3) are provided on the other end of the connecting rods (7), a camera (5) is provided on a front end of the robot body (1), a transparent protection cover (4) is provided outside the camera (5), a first sonar detector (6) is provided below the front end of the robot body (1), and a second sonar detector (8) is provided behind the first sonar detector (6). The first sonar detector (6) and the second sonar detector (8) can be configured to detect shoals of fish and obstacles in deep water, improving the accuracy and efficiency of working, and a winding-up device is provided to quickly retract the underwater robot, reducing the labor intensity of people, and improving the overall degree of automation; the underwater robot has a simple structure, is easy to operate, and has good functionality, greatly reducing the labor intensity of people, and providing strong practicability. C: An underground mineral product detector provided with a video capture unit comprises a cylindrical detector body (1). A circuit layer (2) and a power supply layer (3) are disposed in the detector body (1). The underground mineral product detector also comprises a detection circuit disposed in the circuit layer (2). The detection circuit comprises: a central processing unit; a Hall sensor (6), a radioisotope detector (7) and an ultrasonic sensor (8) that are in signal connection with the central processing unit; and a communication apparatus that is in signal connection with the central processing unit. The communication apparatus is used for wirelessly transmitting out detected information. A power supply module is disposed in the power supply layer (3), and supplies power to a detection circuit. A wired lug (4) is disposed on the top of the detector body (1). By means of a proper structure design and multi-probe detection, a function of conveniently detecting mineral product resources is implemented; the detector is simple and convenient and provides a portable device for underground detection. D: An LED fish-luring system with a visible light communication function. The system comprises an onboard LED fish-luring lamp, an underwater LED fish-luring lamp and an illumination control apparatus. The system further comprises an optical signal transmitter and an optical signal receiver. Signal transmitting and receiving are controlled by an LED visible light communication centre control apparatus. The optical signal transmitter comprises an information transmitting processing unit, a signal modulation circuit, an LED driving unit and the onboard LED fish-luring lamp. The optical signal receiver comprises a photoelectric detector, a signal demodulation circuit and an information receiving processing unit, and the information receiving processing unit of the optical signal receiver communicates with an information terminal. In the present invention, the brightness, the colour temperature, the chromaticity, a flicker frequency and a duty ratio of an LED fish-luring lamp are adjusted; the angle of an board LED fish-luring lamp is adjustable, and lifting adjustment may further be performed by means of a lifting apparatus; and the onboard LED fish-luring lamp has a visible light communication function, and an intra-ship communication local area network is formed and performs interconnection and intercommunication with a land command centre and other ships, so that the quantity of communication devices and communication costs can be reduced and a combination of illumination and communication can be implemented.

B

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed is a collapsible storage fan, which pushes one end of a slide-limiting press plate to pass through a locking through-slot (52A) during normal usage of the fan by a locking mechanism (5), which comprises a downward pressing component (52), a limiting seat (53) and the slide-limiting press plate (51), so that the slide-limiting press plate is located at all the top faces of a movable front supporting seat (42), a fixed left and right supporting seat (41) and a movable rear supporting seat (43). Then, a pressure is applied to the slide-limiting press plate by the downward pressing component, so as to simultaneously abut the slide-limiting press plate against the movable front supporting seat, the fixed left and right supporting seat and the movable rear supporting seat. By using the present fan, the overall occupied space is greatly reduced, package and transportation are facilitated, transportation costs are saved and labour intensity is reduced. Furthermore, assembly procedure is effectively simplified, which facilitates the storage and the usage for the user, and is very safe and practical. A: An electric spindle and a machine tool, comprising: a machine body assembly (1), provided with an air inlet (11) and a stator (12); a spindle core assembly (2), supported on the machine body assembly (1) by means of an upper bearing assembly (4) and a lower bearing assembly (5), the spindle core assembly (2) comprising a spindle core (21), a rotor (22), a pull rod assembly (24), and a chuck (23); and a push rod (3), extending into a spindle core inner hole from the upper end of the spindle core (21); the upper bearing assembly (4) comprises an upper bearing seat (41), an upper bearing (42), and a bearing pre-tensioning component (43), a closed inner cavity (44) being defined inside the upper bearing seat (41), the spindle core inner hole being in communication with the inner cavity (44), the upper bearing (42) and the bearing pre-tensioning component (43) being arranged in the inner cavity (44), the bearing pre-tensioning component (43) being supported between the upper bearing (42) and the upper bearing seat (41), the upper bearing seat (41) being provided with a piston chamber (46), the piston chamber (46) being in communication with the air inlet (11), a floating component (47) being disposed in the piston chamber (46), the floating component (47) abutting the bearing pre-tensioning component (43), and the spindle core inner hole and/or the pull rod assembly (24) and/or the push rod (3) being provided with a helical structure, in order to discharge the air in the inner cavity (44) outside via the spindle core inner hole after the spindle core assembly (2) is rotated. B: A foldable electric fan, comprising a fan body (1), a turnover mechanism (2), a telescopic locking mechanism (3), and a base disc (4). The upper end of the base disc (4) is open and forms an accommodating space (41), and a mounting boss (42) is provided in the accommodating space (41); one end of the telescopic locking mechanism (3) is connected to the turnover mechanism (2), and the other end thereof is rotatably connected to the mounting boss (42); the fan body (1) is connected to the turnover mechanism (2), and the fan body (1) can be turned over and folded with respect to the telescopic locking mechanism (3); when the fan body (1) is stored, the fan body (1) can be folded on the end face of the upper end of the base disc (4) by means of the turnover mechanism (2) and the telescopic locking mechanism (3) while the turnover mechanism (2) and the telescopic locking mechanism (3) can be accommodated in the accommodating space (41). The fan is simple and compact in structure, small in size after being folded, space-saving, easy to store and convenient to carry. C: A valve disc limiting shaft assembly, and a valve disc structure and a valve comprising same. The valve disc limiting shaft assembly comprises: a valve disc limiting shaft (9); at least one support seat (4), said support seat (4) having a first mounting aperture (41) provided thereon, a horizontal through channel (43) that communicates with the first mounting aperture (41) being provided on a lateral surface of a side of the support seat (4) which faces the valve disc limiting shaft (9), and an end part of the valve disc limiting shaft (9) moving into the first mounting aperture (41) via the horizontal through channel (43); and a stopper (3), which is arranged at the end part of the valve disc limiting shaft (9), comprising a main body part and at least two oppositely mounted extending parts, said extending parts having a first state in which the projection thereof onto the valve disc limiting shaft (9) falls on the side of the support seat (4) which faces the valve disc limiting shaft (9), and a second state in which the projection thereof onto the valve disc limiting shaft (9) at least partially falls into the horizontal through channel (43). This structure decreases difficulty of installation, the structure of the assembly parts is simplified, manufacturing is simplified, and costs are lower. D: An adjustable intelligent digital display type device for positioning and punching an inclined hole in a sheet, comprising a base (1), a movable pressing plate (2), fixed pressing plates (3), an adjusting plate (4) and a supporting device (5). The base (1) is provided thereon with a cavity (11), an electric cylinder (14), a rack (13) and a first T-shaped sliding groove (12). Two stretching-out plates (28) are provided on the movable pressing plate (2), and a ratchet mechanism (21) is provided between the stretching-out plates (28) and is engaged with the rack (13). Two ends of the adjusting plate (4) are provided with arc plates (41), and the adjusting plate (4) is in sliding connection to the fixed pressing plates (3). The supporting device (5) comprises a first supporting plate (51) which has an arc structure, a second supporting plate (52) provided with a through hole (521), and a supporting rod (53). The present adjustable intelligent digital display type device for positioning and punching an inclined hole in a sheet has a reasonable structure, has the beneficial effects of the structure being simple, being convenient to use, having a high degree of intelligence, and universality being high, and effectively solves the problems of existing sheet hole punching equipment having low precision and being inconvenient for adjusting a punching angle.

B

Please select the most similar patent number from A, B, C and D. Which number is? A vertical take-off and landing aircraft with tiltrotor power for use on land and in the air comprising: a body (3) equipped with a driving device, controlled wheels (8) for allowing the body to move on the ground, a front thruster (1) and a rear thruster (2) for controlling the flight of the body or the take-off and landing thereof, transmission support rods (5) provided on the two sides of the body, a first pivot shaft (9) laterally passing through the body, with the first pivot shaft connected with the transmission support rods on the two sides of the body; the front thruster is fixedly connected to the front ends of the transmission support rods, and the rear thruster is fixedly connected to the rear ends of the transmission support rods; and the central axes of the front and rear thrusters are perpendicular to the plane formed by the two transmission support rods. By controlling the rotation angles of the front and rear thrusters, the aircraft has the major basic functions of both vertical take-off and landing as well as horizontal flight, and achieves a simple conversion between driving on land and flying in the air. During flight, the body of the aircraft always remains in a horizontal state, so that the drivers and passengers feel comfortable and have a wide field of vision, facilitating safe driving. A: A foldable-wing flying automobile adopting a serial type pneumatic layout comprises an automobile body (1), wheels (2) installed on a lower part of the automobile body, main wings installed on two sides of the automobile body and capable of generating an upward lifting force, and a thruster (17) installed on the automobile body and capable of generating a thrusting force. Both front wings (3) and back wings (6) are the main wings with a large wing area and a long wingspread. When the wings of the flying automobile are spread, the front wings and the back wings form a longitudinal serial type pneumatic layout along the automobile body, and together generate the upward lifting force. When the wings of the flying automobile are retracted, the front wings are turned over, folded, and then received at the two sides of the automobile body, and the back wings are turned over, folded, and then received at the top of the automobile body or at the two sides of the automobile body. The wings and the automobile body are installed with solar cell panels (20) with a large area, so that the whole automobile becomes a large solar charger, thereby enhancing an endurance capability. In the present invention, based on the foregoing, a vertical takeoff and landing airplane automobile and a flying automobile for over-water, ground, and air traveling are further realized. B: Disclosed is a hand-held underwater aircraft, comprising a battery compartment (12) and propellers. A special design with the axis of the propellers being unparallel with the axis of the battery compartment is adopted, the unparallel included angles make the component forces generated by various propellers in the direction of motion of the non-underwater aircraft offset each other, and enable the underwater aircraft to maintain balanced and straight-forward motion. The design of unparallel axes of the propellers and the battery compartment (12) leads to a little power loss, but avoids larger power loss caused by the impact of water on the human body, thereby comprehensively improving the thrust of the underwater aircraft in use. The design of unparallel axes of the propellers and the battery compartment (12) leads to a little power loss, but avoids larger power loss caused by the impact of water on the human body, thereby comprehensively improving the thrust of the underwater aircraft in use. Moreover, the water does not strike on the user's face, thereby effectively preventing the user from inhaling water, making the user feel more comfortable and safer, and effectively improving the overall use experience. C: The present invention relates to a vertical take-off and landing aircraft, comprising a fuselage (1), a main wing, a main thrust apparatus (2) that can tilt between the horizontal position and the vertical position, a tilt apparatus that enables the main thrust apparatus to tilt, and an attitude control apparatus for controlling the flight attitude; the wing comprises a left wing and a right wing, and the main thrust apparatus uses a heat engine as the power apparatus; the invention is characterized in: the attitude control apparatus consists of at least two attitude-adjusting apparatuses (4), a power module (5), a speed adjustment module (9), and a flight control system (6); an attitude-adjusting apparatus consists of a motor (4a) and a propeller or a ducted fan (4b) that has a power connection with the motor; at least one attitude-adjusting apparatus is provided on the left wing, and at least one attitude-adjusting apparatus is provided on the right wing. The mechanical structure of the aircraft is thereby simplified, the reaction is more rapid and sensitive, and the operation is easier, thereby further stabilizing the aircraft attitude control. D: A handheld underwater flying vehicle, comprising a battery compartment (12) and propellers. The quantity of the propellers is at least two, and the propellers are symmetrically arranged on two sides of the battery compartment (12) and connected to the battery compartment (12). The axis of the propellers and the axis of the battery compartment (12) have a special non-parallel design. The angle of the non-parallelism causes the component forces produced by the propellers not in the movement direction of the underwater flying vehicle to cancel each other out, and causes the motion of the underwater flying vehicle to remain balanced, allowing for travel in a straight line. The non-parallel design of the propeller axes and the battery compartment (12) axis causes a very small power loss, but avoids a greater power loss caused by water flow striking a person's body, improving forward thrust of the underwater flying vehicle overall during use. Because water does not strike the user's face, the user is also prevented from choking on water, making the user more comfortable and safe, and improving the overall use experience.

C

Please select the most similar patent number from A, B, C and D. Which number is? A frame for an aircraft (100), and an aircraft (100). The frame comprises: a body (10) and a fixing assembly (20). The fixing assembly (20) is provided on the body (10). The fixing assembly (20) comprises a fixing frame (210) and a fastening frame (220) spaced apart from each other in a first direction. The fixing frame (210) has two first assembly slots (2120) spaced apart from each other in a second direction. Each first assembly slot (2120) is suitable for accommodating a first arm (901). The fastening frame (220) comprises two second assembly slots (2220) spaced apart from each other in the second direction. Each second assembly slot (2220) is suitable for accommodating a second arm (902). The first direction is perpendicular to the second direction. The structure of the frame is simplified, thereby facilitating assembly and disassembly of an arm (90) of the aircraft (100). A: Provided are a vehicle arm assembly of an unmanned aerial vehicle, and an unmanned aerial vehicle. The vehicle arm assembly (100) of the unmanned aerial vehicle comprises a first joint member (1), a second joint member (2) and a locking assembly (3), wherein an end portion of the first joint member (1) is hingedly connected to an end portion of the second joint member (2) by means of a spindle (4); the locking assembly (3) is capable of locking the first joint member (1) and the second joint member (2) at a predetermined position; the locking assembly (3) comprises a first locking structure (31), wherein same is provided on the first joint member (1) and is movable, and a second locking structure (32), wherein same is provided on the second joint member (2); and the first locking structure (31) and the second locking structure (32) are capable of being switched from a locked state to an unlocked state. The unmanned aerial vehicle comprising the vehicle arm assembly is capable of folding or unfolding the vehicle arm to adapt same to different occasions. B: A cash storage apparatus (10) and cash recycling device (30), the cash storage apparatus (10) comprising a cabinet (100) and a cash cassette assembly (200). A first bill inlet and outlet (120) is provided on the top wall of the cabinet (100). Two guiding pieces (130) are arranged inside the cabinet (100), the two guiding pieces (130) being arranged at an interval in a first direction (300). Each guiding piece (130) comprises a guide rail (136), which extends in a second direction (310) perpendicular to the first direction (300) and is provided with a positioning part (137). A second bill inlet and outlet (222) is provided on the top of the cash cassette assembly (200). The cash cassette assembly (200) is provided with two first moving pieces (223). The two first moving pieces (223) are separately arranged to be movably matched with the two guide rails (136). When the two first moving pieces (223) have respectively been moved along the two guide rails (136) as to be matched with the positioning parts (137) on the two guide rails (136), the cash cassette assembly (200) is positioned inside the cabinet (100), and the second bill inlet and outlet (222) is opposite to and communicated with the first bill inlet and outlet (120). C: The present application relates to a storage device for a wafer carrier. The storage device in the embodiments of the present application comprises: a support plate, comprising a first end portion, a main body portion and a second end portion that are consecutively arranged in a first direction; a spacer block, which is fixed on a lower side of the first end portion so as to make the support plate obliquely arranged as a whole, wherein the first end portion is higher than the second end portion; a stopper block, which is fixed on an upper side of the second end portion; two limiting plates, which are fixed on an upper side of the main body portion and spaced apart from each other in a second direction, the second direction being perpendicular to the first direction; and a plurality of transmission assemblies, which are arranged between the two limiting plates and arranged at intervals in the second direction, wherein each transmission assembly comprises a plurality of rollers distributed in the first direction, each roller is rotatably connected to the main body portion, and each roller at least partially protrudes out of an upper surface of the main body portion and is used to support a wafer carrier. The heights of the plurality of rollers in each transmission assembly gradually decrease in a direction approaching the second end portion. D: A mask plate (1), comprising a frame (100) and first alignment bars (310). The frame (100) comprises two first frame edges (110) extending in a first direction and spaced apart in a second direction, and two second frame edges (120) extending in the second direction and spaced apart in the first direction; the first frame edges (110) and the second frame edges (120) intersect to form a quadrilateral; the first frame edges (110) and the second frame edges (120) comprise opposite first surfaces (102) and second surfaces (103); the first surfaces (102) of at least three corners (101) in four corners (101) of the quadrilateral are provided with the first alignment bars (310), each first alignment bar (310) is provided with a first alignment mark (311), and the first direction intersects with the second direction. The mask plate (1) prevents a solute (3) in a gap from being dried to solid powder to be dispersed in a display area, thereby improving the production yield of the device.

A

Please select the most similar patent number from A, B, C and D. Which number is? A power source unit body for catapulting. The power source unit body for catapulting (77) comprises a high-pressure chamber (7), a flow splitting chamber (8) and a cooling water chamber (9). High-temperature high-pressure fuel gas generated through burning of gunpowder (36) enters the flow splitting chamber, a part of the fuel gas enters a vertical pipe (29) from a fuel gas inlet, and another part of the fuel gas squeezes a water bag (19) in the cooling water chamber, so that cooling water in the water bag is sprayed into the vertical pipe from a cooling water nozzle, and is mixed with high-temperature high-pressure fuel gas to generate steam, and the steam and the gunpowder fuel gas are formed into mixed gas. In the power source unit body for catapulting, gunpowder is placed in a cartridge case (6), and when it is required to release energy, by means of percussion, the power source unit body for catapulting releases high-pressure gas, thereby implementing catapulting of a shipboard aircraft. Also, an aircraft carrier gas-steam catapult and a catapulting method for implementing catapulting of a shipboard aircraft by use of the power source unit body for catapulting. A: The invention relates to a high-pressure reheating gas-steam combined cycle power generation system and a power generation method. The system consists of a gas turbine sub-system and a steam turbine sub-system. The gas turbine sub-system comprises a device used for two-stage air compression, twice combustion as well as high-pressure and medium-pressure twice turbine working; after initial working of high-temperature gas, the high-temperature gas enters a medium-pressure combustion chamber and is reheated for secondary working, improving the average heat absorption temperature of the whole cycle; and at least a one-stage intercooler is arranged between two-stage compressors, and the heat flow of the intercooler is connected with the two-stage compressors. The steam turbine sub-system adopts a three-pressure reheating type boiler and a steam turbine, the cooling water of the intercooler is connected with high-pressure water, and high-pressure, medium-pressure and low-pressure water as well as the cooling water of the intercooler absorbs heat at different stages for multiple times, thus utilizing the heat energy efficiently. When the high-pressure reheating gas-steam combined cycle power generation system by the present invention is operated with the optimum parameters, the combined cycle efficiency is increased by 3-5 percentage points compared with a combined cycle system mainly adopting a gas turbine class F, and the single-machine output power is increased by more than 70%, reaching level 800MW. B: A gas turbine intake air cooling device using waste heat as driving force, the intake air cooling device comprising an air cooler or a cooling tower (6), a surface cooler (1), a cold water tank (7), and at least one waste heat chiller (4); the two low-temperature water ends (D, C) of the waste heat chiller (4) are connected to the surface cooler (1) via valves (I, II) and/or valves (IV, V, VI) and the cold water tank (7); the two cooling water ends (A, B) of the waste heat chiller (4) are connected to the two cooling water ends of the cooling tower (6); the high-temperature flue gas input end of the waste heat chiller (4) is connected to a waste heat fuel gas pipe (3) of a gas turbine; and the cooling air outlet of the surface cooler (1) is connected to the air intake of a gas turbine (2). The gas turbine intake air cooling device using waste heat as driving force has less energy consumption, low operating costs and controllable intake air humidity. C: Aircraft carrier aircraft takeoff catapult equipment, comprising a flight deck (18) having a gap (19), front and rear pulleys (20 and 23), and steel cables (36) wrapped around the pulleys. A connector block (45) connects both ends of the steel cables together. A block base (47) is provided on the connector block. A takeoff driving motor (25) can directly drive a pullable swinging arm (7) on the nose gear of an aircraft via the rear pully, the steel cables, and the block base (47) on the connector block or drive an aircraft to run and take off via a reciprocating shuttle. Because the friction between the pulleys and the steel cables can be increased by providing multiple steel cables and increasing the force of a tightening mechanism, this aircraft catapult equipment can easily achieve the driving force required by the aircraft to take off; moreover, the overall structure of the equipment is simplified, is also easy to process and manufacture, and is very suitable for use in catapulting a heavy aircraft taking off from an aircraft carrier. The equipment also is suitable for being miniaturized for installation on a ship or vehicle, specialized in catapulting the takeoff of a small-sized unmanned aerial vehicle. D: A magazine for an ejection apparatus and said ejection apparatus, the magazine comprising a housing (1) wherein is formed a cavity for accommodating a projectile and wherein are arranged a push-plate (2), a pull-plate (3) and a first elastic element (4); the push-plate (2) and the pull-plate (3) are movably arranged within said housing (1), the pull-plate (3) being capable of movably pulling the push-plate (2) so as to increase the volume of the accommodation cavity so as to allow a projectile to be loaded into said cavity; one end of the first elastic element (4) is retained upon the housing (1) and the other end is retained upon the push-plate (2), the purpose whereof being to cause by means of elastic recovery movement of the push-plate (2) when the pull-plate (3) is released. When in use, pulling upon the pull-plate (3) entrains movement of the push-plate (2) so as to allow loading of a projectile into the accommodation cavity; once said projectile is thus loaded, release of the pull-plate (3) causes the push-plate (2) to steadily press upon the projectile through the effect of the first elastic element (4). Projectile-loading operation of the present magazine is simple and convenient, while provision of the first elastic element and of the push-plate ensure smooth conveyance of projectiles, thus effectively avoiding problems of uneven projectile conveyance.

C

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed are a synchronous clamping-conveying mechanism and a labelling machine. The synchronous clamping-conveying mechanism comprises: a bracket (100); a driving device (200), wherein the driving device (200) comprises a driving member (210), a first transmission mechanism (220) connected to a driving shaft of the driving member (210), and a second transmission mechanism (230) connected to the first transmission mechanism (220) and running synchronously and disposed on the bracket (100); a first conveying member (300), the first conveying member (300) being sheathed on the second transmission mechanism (230); a synchronous transmission mechanism (400), wherein the synchronous transmission mechanism (400) is disposed on the bracket (100), and is connected to the first transmission mechanism (220) and running synchronously; and a top pressure mechanism (500), wherein the top pressure mechanism (500) is disposed on the bracket (100) and located above the first conveying member(300), the top pressure (500) mechanism comprises a second conveying member (510), and the second conveying member (510) and the first conveying member (300) run synchronously and cooperate with each other to form a clamping-conveying channel (600). The structure realises a high degree of synchronization consistency of the actions of the first conveying member (300) and the second conveying member (510), preventing a bottle falling due to the difference in running speed between the top and the bottom, and greatly improving the conveying stability and reliability of bottles. A: A bidirectional power output linkage device and an antenna downtilt angle control device, the bidirectional power output linkage device comprising: an input shaft (110); a first transmission mechanism (200), the first transmission mechanism (200) comprising a first inner gear ring (210), a first gear (220) which is coaxial with the first inner gear ring (210), a second gear (230) which forms an acting connection with the first gear (220), and a first planet carrier (240); a second transmission mechanism (300), the second transmission mechanism (300) comprising a first rotating member (310) which is fixedly in transmission connection with the first planet carrier (240), and a second rotating member (320) which forms an acting connection with the first rotating member (310); a third transmission mechanism (400), the third transmission mechanism (400) comprising a second planet carrier (410) which is mounted on the second rotating member (320), a third gear (420) which is mounted on the input shaft (110), and a fourth gear (430) which meshes with the third gear (420); a one-way control mechanism, which controls the rotation direction of the first rotating member (310) to be opposite to the rotation direction of the second rotating member (320). B: Disclosed is a bogie landing gear (100), comprising a bogie (110), wherein the bogie (110) is connected to a bearing strut (112), at least two axles (111) are arranged on the bogie (110), and an airplane wheel (120) is installed on each of the axles (111). The bogie landing gear (100) further comprises an automatic sliding device (130). The automatic sliding device (130) comprises: a driving mechanism which is fixedly installed on the bogie (110) and comprises a first output shaft and a second output shaft that can move synchronously, wherein the first output shaft and the second output shaft are connected to a first transmission mechanism and a second transmission mechanism respectively so as to transmit output rotation to a first airplane wheel and a second airplane wheel; and a clutch mechanism (160) for enabling the first transmission mechanism and the second transmission mechanism to move between a first position and a second position, so that the first transmission mechanism and the second transmission mechanism are connected to or disconnected from the first airplane wheel and the second airplane wheel. In the structure of the bogie landing gear (100) of the structure, the improved automatic sliding device (130) structure is adopted, such that an automatic sliding operation of the bogie landing gear (100) is achieved. Further disclosed is an aircraft comprising the bogie landing gear (100). C: A reagent mixing and loading device (10) and an immunological detection apparatus. The reagent mixing and loading device (10) comprises a transmission mechanism (100), mixing mechanisms (200), a loading mechanism (300) and a driving mechanism (400), wherein the transmission mechanism (100) comprises a first rotating member (110) and a second rotating member (120), the first rotating member (110) being rotatably connected to a plurality of mixing mechanisms (200) arranged at intervals, and the first rotating member (110) being capable of synchronously rotating with the second rotating member (120); the driving mechanism (400) is used to drive the second rotating member (120) to rotate; each mixing mechanism (200) comprises a mixing column (210), a mixing transmission member (220) and a mixing limiting member (230), the mixing transmission member (220) being connected to the mixing column (210) in a sleeved manner and fitting with the second rotating member (120) in an abutting manner; and the loading mechanism (300) comprises a loading box (310) and a loading fitting member (320), the loading box (310) being provided with a reagent hole for the loading box (310) to be placed therein, and the loading fitting member (320) being rotatably arranged in the reagent hole and used for carrying the loading box (310). The reagent mixing and loading device (10) can implement the normal mixing of reagents without the occurrence of problems such as jamming and collision. D: A labeling machine for a lower surface. The machine comprises: a controller; a first transport mechanism configured to feed a product to be labeled and electrically connected to the controller; and a positioning and gripping device (200) electrically connected to the controller and comprising a workpiece gripper mechanism (210) provided above the first transport mechanism. The workpiece gripper mechanism comprises a drive member (211), a holder base (212) drivably connected to the drive member, and at least three workpiece gripper correction fingers (213) provided at the holder base. The at least three workpiece gripper correction fingers can rotate with respect to the holder base, enclose and form a workpiece holding cavity (300), and approach or move away from each other. By means of rotatability of the workpiece gripper correction fingers with respect to the holder base, the present invention provides superior adaptability to hold, position, and perform attitude correction on a product having an irregular shape, thus adjusting an attitude of the product to be highly aligned with a labeling work position, and accordingly improving labeling precision and ensuring superior manufacturing quality of the product.

D

Please select the most similar patent number from A, B, C and D. Which number is? A household environmental protection garbage bin, relating to the technical field of garbage bins, and solving the problem of air pollution by great peculiar smells generated by garbage which is not collected in a classified manner because an existing household garbage bin cannot separate sewage from the garbage. A second partitioning plate (16) is disposed inside a bin body (1) of the garbage bin; a first partitioning plate (15) is disposed above the second partitioning plate (16); a first storage cavity (8) is formed on one side of the first partitioning plate (15); a second storage cavity (10) is formed on the other side of the first partitioning plate (15); a first garbage bin body (9) is provided inside the first storage cavity (8), and a second garbage bin body (11) is provided inside the second storage cavity (10); the upper surface of the bin body (1) is provided with a first cover plate (12); one side of the first cover plate (12) is provided with a second cover plate (13); the second cover plate (13) and the first cover plate (12) are rotatably connected with the bin body (1) by means of hinges; a support frame (18) is provided on one side of the bin body (1); a cigarette extinguishing box (19) is provided above the support frame (18); a waste liquid storage cavity (21) is provided below the second partitioning plate (16). A: Disclosed is a medicinal material mashing device for motherwort paste production, which relates to the technical field of accessory devices for medicinal material production and processing. The device comprises a crushing box (1), a left door, a right door, a group of fixing rings, an insertion rod, a connection rod (5), a direct current electric motor (6), a group of blades (7), a V-shaped baffle (8) and a group of legs (9), wherein a first storage cavity is provided in the crushing box (1), a first opening is provided in a bottom face of the crushing box (1) and is in communication with the first storage cavity, and top ends of the group of legs (9) are respectively connected to a left-half region and a right-half region of a bottom face of the V-shaped baffle; further comprises a cleaning box (10), a spray head (11), a group of rolling brushes (12), a group of rotation shafts (13), a group of alternating current electric motors and a group of supports (15), wherein a second storage cavity is provided in the cleaning box (10), a second opening is provided in a right-half region of a top face of the cleaning box (10) and is in communication with the second storage cavity, and top ends of the group of supports (15) are respectively connected to a left-front side, a left-rear side, a right-front side and a right-rear side of a bottom face of the cleaning box (10); and further comprises an air drying box (16), a conveying device (17) and a group of supporting rods (18). B: An odor-resistant partition plate device for a garbage can, comprising a partition plate (1); a feed hole (12) is provided in the middle of the partition plate (1); an openable door is provided at the feed hole (12) for opening and closing the feed hole (12); the openable door comprises a left cover plate (2) and a right cover plate (3); the left cover plate (2) and the right cover plate (3) are in hinged connection with the bottom of the partition plate (1); the left cover plate (2) and the right cover plate (3), when being coplanar, can close the feed hole (12); closing mechanisms are provided on the left cover plate (2) and the right cover plate (3); and the closing mechanisms ensure that the left cover plate (2) and the right cover plate (3) maintain a state of closing the feed hole (12) when no external pressing force is applied. The partition plate device can be sleeved between a lid and a can body of an existing garbage can having a lid, or can be directly sleeved at the opening of a no-lid garbage can. C: A medicinal material mashing apparatus, relating to the technical field of accessory apparatuses for medicinal material producing and processing. The apparatus comprises a crushing box (1), a left door, a right door, a set of fixed rings, an insertion rod, a connection rod (5), a direct current motor (6), a set of blades (7), a V-shaped baffle (8), and a set of supporting legs (9); the interior of the crushing box (1) is provided with a first storage cavity; the bottom surface of the crushing box (1) is provided with a first opening; the first opening is in communication with the first storage cavity; the top ends of the set of supporting legs (9) are respectively connected with the left half region and the right half region of the bottom surface of the V-shaped baffle; the apparatus further comprises a cleaning box (10), a shower spray (11), a set of roller brushes (12), a set of rotating shafts (13), a set of alternating current motors, and a set of brackets (15); the interior of the cleaning box (10) is provided with a second storage cavity; the right half region of the top surface of the cleaning box (10) is provided with a second opening; the second opening is in communication with the second storage cavity; the top ends of the set of brackets (15) are respectively connected with the left front side, left rear side, right front side, and right rear side of the bottom surface of the cleaning box (10); the apparatus further comprises a drying box (16), a transmission device (17), and a set of supporting rods (18). D: A storage tank for the classified storage of agricultural products, comprising a cylinder body (1). A storage cavity (2) is provided inside the cylinder body (1). A separation plate (3) is fixedly connected in the middle of the storage cavity (2). Refrigeration pipes (6) are fixedly connected in the middle of refrigeration pipe bases (5). A temperature sensor (7) is fixedly connected on one side of the refrigeration pipe base (5). A sponge pad (8) is movably connected at the bottom of the storage cavity (2). A first spring (10) is fixedly connected on one side of a spring sleeve (9). A limiting block (11) is fixedly connected on one end of the first spring (10). A connecting rod (12) is movably connected on one side of the limiting block (11). A sliding block (13) is movably connected on one end of the connecting rod (12). A sliding groove (14) is movably connected on one side of the sliding block (13). A second spring (15) is fixedly connected on an inner bottom wall of the cylinder body (1). According to the storage tank, the refrigeration pipes (6) are arranged, so that the problem of unavailability of agricultural products due to the spoilage caused by the high temperature in summer can be avoided. The second spring (15) and the first spring (10) are arranged opposite to each other, so that the vibration of the sponge pad (8) can be reduced, and the vibration generated in the movement process of the storage tank is avoided.

B

Please select the most similar patent number from A, B, C and D. Which number is? An environmentally friendly household garbage can, comprising a can body (1). A bottom box (2) is mounted on a bottom surface of the can body (1); an anion generator (3) is mounted in the middle of an inner cavity of the bottom box (2); a storage battery (4) is mounted on a side of the anion generator (3); fans (5) are respectively mounted on two sides of the inner cavity of the bottom box (2); dust screen covers (6) are respectively arranged on two sides of a surface of an outer wall of the bottom box (2); a touch time delay switch (7) is mounted in the middle of the surface of the outer wall of the bottom box (2); a baffle (9) is mounted at the top of a surface of a side wall of the can body (1); a transverse rod (10) is arranged on a side of the bottom of the baffle (9); and a side wall of an end of the transverse rod (10) is provided with an insertion rod (11). An air purification effect is achieved by means of the anion generator and the fans; the transverse rod and the insertion rod co-operate so as to store a standby garbage bag, thereby facilitating use by workers; by means of the transverse rod, the insertion rod can be supported such that the insertion rod can store a garbage bag, thereby facilitating use by workers; and the baffle can achieve a certain protective effect, thereby maintaining the hygiene of the garbage bag. A: Disclosed is a novel environmentally friendly trash bin, comprising an upper bin body and a lower bin body (1, 2). An upper part of the upper bin body (1) is provided with a trash inlet (11), and a top cap (12) is provided at the top of the upper bin body (1). Cross bars (13) are symmetrically and horizontally arranged on the periphery of the upper bin body (1). Vertical supporting rods (14) are connected to outer ends of the cross bars (13). The lower bin body (2) is arranged under the upper bin body (1). The lower bin body (2) comprises a base (21), and a cavity for storing trash is provided in the base (21). An umbrella-shaped trash collection plate (3), which can be flattened and folded upward, is arranged on the periphery of the base (21). A driving mechanism is arranged in the base (21) and the driving mechanism is connected to the collection plate (3). The driving mechanism is controlled by a trash collection system. The novel environmentally friendly trash bin has the beneficial effects that trash falling around the trash bin due to the carelessness of pedestrians can be automatically collected, the urban environment can be beautified, and the workload of sanitation workers can be reduced. Trash on the periphery and top of the trash bin can be collected at the same time, and collection can be completed once without manual operation. B: A workpiece cleaning device, comprising a cleaning tank (1). A partition (2) is mounted on a side of the middle of an inner cavity of the cleaning tank (1); a bracket (3) is mounted on the left side of the bottom of the inner cavity of the cleaning tank (1); a waterproof electric rotary disc (4) is mounted on the top surface of the bracket (3); a spraying mechanism (5) is respectively mounted on the left side wall of the inner cavity of the cleaning tank (1) and the left side wall of the partition (2); the spraying mechanism (5) is composed of a portal frame (501), a transverse rod (502) and a high-pressure nozzle (503); a water pump (6) is mounted on the left side of an outer wall of the cleaning tank (1); limiting blocks (7) are respectively mounted at the bottom of the right side wall of the inner cavity of the cleaning tank (1) and at the bottom of the right side wall of the partition (2); a grid frame (8) is mounted at the top of the limiting blocks (7); ultrasonic vibrating plates (9) are respectively mounted at the top of the right side wall of the inner cavity of the cleaning tank (1) and at the top of the right side wall of the partition (2); and an ultrasonic generator (10) is mounted on the right side of the outer wall of the cleaning tank (1). The workpiece cleaning device performs pre-treatment on a workpiece by means of the spraying mechanism, and then performs secondary cleaning on the workpiece by means of the ultrasonic vibrating plates and the ultrasonic generator, thereby improving the workpiece cleaning quality and efficiency. C: Provided is an environmentally friendly and energy-saving cutting machine, comprising a base (1) and a vertical post (2), the vertical post being welded to one side of a top surface of the base; a cutting mechanism (3) is mounted on the top of the vertical post, the cutting mechanism comprises a support frame (301), a second fixing ring (5) is welded to one end of the vertical post, and the second fixing ring is connected to a first fixing ring (310) by means of a tension spring (4); a cutting slot (6) is disposed on one side of the surface of the base, bearing blocks (7) are welded symmetrically to the bottom surface of the base, a dust collection box (8) is provided at the center of the bottom surface of the base, and support panels (9) are welded on the tops of two side walls of the dust collection box. In the present cutting machine, a material on the base can be cut, and shavings in a protective cover can also be suctioned out so as to be able to reduce the pollution from the shavings, and by means of a second dust exhaust tube, a vacuum can be externally connected, thereby improving the efficiency of dust suctioning by the dust collection box, which can reduce environmental pollution and also reduce the harm to a worker's body caused by the shavings. D: A wastewater sampling device, comprising a sampling barrel (1), a barrel cover (2), a water intake pipe (3), and a water outlet pipe (4), the barrel cover (2) being mounted on the surface of the top of the sampling barrel (1), the water intake pipe (3) being inlaid and connected to the surface of the top of the barrel cover (2), the water outlet pipe (4) being inlaid and connected to the bottom of the right side of the sampling barrel (1), a bottom plate (5) being mounted on the surface of the bottom of the sampling barrel (1), a rotating mechanism (6) being disposed on the bottom of an inner cavity of the sampling barrel (1), the rotating mechanism (6) comprising a bracket (601), a counterweight ring (7) being mounted on the surface of the bottom of the bottom plate (5), a control mechanism (8) being mounted on the top of an inner cavity of the counterweight ring (7), the control mechanism (8) comprising a waterproof box (801), and a first sealing cover (301) being rotatably connected to the surface of the top of the water intake pipe (3). By means of the rotating mechanism (6), the inflow of wastewater from the water intake pipe (3) can be accelerated and wastewater can be rapidly discharged from the water outlet pipe (4), thereby facilitating personnel to guide wastewater into or out of the sampling barrel (1), increasing the wastewater sampling efficiency and achieving a rapid waste discharge function.

A

Please select the most similar patent number from A, B, C and D. Which number is? A multifunctional portable stainless steel home storage bin, comprising a primary bin body (1), a secondary bin body (2), and a lid bin body (3). The secondary bin body (2) is fixed inside the primary bin body (1); the lid bin body (3) seals and covers the upper end of the primary bin body (1); a plurality of connection rods (5) are fixed onto the inner top wall of the lid bin body (3); the lower ends of the connection rods (5) are connected to a separator (6); the upper end of the lid bin body (3) is provided with a feeding hopper (4) in a through manner; the lower end of the feeding hopper (4) penetrates through the separator (6) to contact an inclined baffle (7); the inclined baffle (7) is rotatably connected onto a mounting block (8); the mounting block (8) is fixed at the lower end of the separator (6). The provision of the feeding hopper (4) facilitates dumping and entering of garbage and waste; moreover, by means of the provision of the inclined baffle (7) at the lower end of the feeding hopper (4), and the coordination between a reset spring (9) and rotatable connection of the inclined baffle (7) and the mounting block (8), it is convenient to seal and open the lower end of the feeding hopper (4). When opened, the lower end allows for entering of garbage, and when sealed, the lower end functions to achieve coordination with sealing and covering matching between the lid bin body (3) and the primary bin body (1), so as to prevent emission of unpleasant odor in the bin from making persons uncomfortable. A: An efficient crushing feed hopper comprising a feed hopper (1), wherein a cover plate (2) is arranged at an upper end of the feed hopper (1); a longitudinal stirring electric motor (3) is arranged at an upper end of the cover plate (2); a stirring shaft (4) is arranged at a lower end of the longitudinal stirring electric motor (3) and located in the feed hopper (1); an auger delivery piece (5) is mounted on the stirring shaft (4); the feed hopper (1) has an upper portion in the shape of a cylinder and a lower portion in the shape of an inverted cone; a rotating shaft (6) is arranged below the stirring shaft (4) and located in the feed hopper (1); stirring blades (7) are mounted on the rotating shaft (6); the rotating shaft (6) is movably connected to a side wall of the feed hopper (1) via a bearing seat; a transverse stirring electric motor (8) is connected to an outer end of the rotating shaft (6); the transverse stirring electric motor (8) is fixedly mounted on the side wall of the feed hopper (1); a discharge tube (9) is arranged at a lower end of the feed hopper (1); and a feed port (13) is provided on the cover plate (2). By adding a longitudinally arranged stirring shaft and a transversely arranged rotating shaft in a feed hopper, agglomerate materials in the feed hopper can be double stirred, thereby ensuring sufficient crushing of the agglomerate materials, effectively preventing the materials from blocking the feed hopper and lengthening the usage life of the feed hopper. B: A balance ring mounting structure, an inner tub having same and a washing machine. The balance ring mounting structure comprises a balance ring (1) and a tub body (2). The balance ring (1) is mounted on an upper opening of the tub body (2). An inward convex support portion (3) is provided at the periphery of the upper end of the tub body (2). An overlap portion (4) overlapped on the support portion (3) is provided at the outer periphery of the balance ring (1). A sealing element (5) is sandwiched between the support portion (3) and the overlap portion (4). The tub body (2) is rotatably riveted to the balance ring (1). A groove structure (6) stamped from outside to inside is provided at the periphery of the upper end of the tub body (2), an opening faces towards the outside of the periphery of the tub body (2), and the groove bottom is protruded inward the tub body (2). The support portion (3) is located above the groove structure (6). A water outlet (7) is formed below the support portion (3) of the inner tub of the washing machine. During dewatering, water in the tub climbs upwards under the centrifugal force and is guided to the outside of the tub from the water outlet (7). The washing machine is sealedly connected between the inner tub and the balance ring (3) to prevent water splashing between the inner tub and the balance ring (3) to cause potential safety hazard. The structure is simple, the sealing effect of the inner tub is good, and the dewatering is rapid. C: Disclosed is a sealing garbage can, comprising a can body (1) and a can cover (2); a garbage receiving apparatus (5) is disposed on the can cover (2), the garbage receiving apparatus (5) comprises a cover body (501) and a rotation body disposed on the cover body (501), the cover body (501) closes the space inside a garbage bag, and a temporary storage compartment (508) is disposed on the rotation body; the can cover (2) is also provided with a garbage bag storage apparatus (3) and a garbage bag sealing apparatus (4); the can body (1) or can cover (2) is provided with a garbage bag infeed apparatus; the garbage bag storage apparatus (3) is installed under the garbage receiving apparatus (5); a garbage bag sealing apparatus (4) is mounted under the garbage bag storage apparatus (3); a controllable channel used for communicating with the external environment when a bag is inserted is disposed between the garbage receiving apparatus (5) and the garbage bag storage apparatus (3), or on the garbage receiving apparatus (5). The sealing garbage can has good sealing and deodorization performance as well as the function of automatically packing and sealing filled garbage bags. Furthermore, after removing a packed garbage bag, a new garbage bag can be communicated with the external environment such that bag infeed of the new garbage bag can be successfully completed. D: A feeding barrel for drinking and ingestion, a drinking and ingestion integrated device, and a feeding control method, the feeding barrel for drinking and ingestion comprising a barrel body (1), independent discharging ports are provided on a lower end of the barrel body (1), a rotating rod (12) is rotationally arranged between adjacent material separating plates on each discharging port, a rotating plate (15) is fixedly arranged on each rotating rod (12), and a water tank (2) is also disposed on the barrel body (1). The drinking and ingestion integrated device comprises the barrel body (1), an ingestion groove (7) is provided below the barrel body (1), a plurality of partition plates (72) are provided within the ingestion groove (7), and a plurality of ingestion areas are formed therein. The feeding control method comprises: an instruction terminal sends an operation instruction; a controller (6) receives the operation instruction and selects a working state, and controls a driving motor (61) and an electric control valve (52); and after control is complete, the driving motor (61) and the electric control valve (52) are closed, and discharging is complete.

C

Please select the most similar patent number from A, B, C and D. Which number is? A garbage bag packing mechanism and an intelligent garbage bin. The packing mechanism is disposed in a trash bin body (1), and a location at a top part of an inner wall of the trash bin body (1) is provided with a first fixed side and a second fixed side intersecting with the first fixed side. The packing mechanism comprises a first pressing rod (2) capable of sliding along the second fixed side, and a second pressing rod (3) capable of sliding along the first fixed side, wherein the first pressing rod (2) and the second pressing rod (3) may draw a garbage bag to the intersection location of the first fixed side and the second fixed side, and a hot melting device (4) is disposed near the intersection location. The packing mechanism further comprises a driving device (9) for driving the first pressing rod (2) and the second pressing rod (3) to move. A: Disclosed is a novel environmentally friendly trash bin, comprising an upper bin body and a lower bin body (1, 2). An upper part of the upper bin body (1) is provided with a trash inlet (11), and a top cap (12) is provided at the top of the upper bin body (1). Cross bars (13) are symmetrically and horizontally arranged on the periphery of the upper bin body (1). Vertical supporting rods (14) are connected to outer ends of the cross bars (13). The lower bin body (2) is arranged under the upper bin body (1). The lower bin body (2) comprises a base (21), and a cavity for storing trash is provided in the base (21). An umbrella-shaped trash collection plate (3), which can be flattened and folded upward, is arranged on the periphery of the base (21). A driving mechanism is arranged in the base (21) and the driving mechanism is connected to the collection plate (3). The driving mechanism is controlled by a trash collection system. The novel environmentally friendly trash bin has the beneficial effects that trash falling around the trash bin due to the carelessness of pedestrians can be automatically collected, the urban environment can be beautified, and the workload of sanitation workers can be reduced. Trash on the periphery and top of the trash bin can be collected at the same time, and collection can be completed once without manual operation. B: A foldable bicycle, comprising: a front wheel (1), a rear wheel (2), a handle (3), a main beam (4), a support rod (5), a pedal mechanism (6), a first fixing lock (453), and a second fixing lock (432), wherein the front wheel (1) is connected to the handle (3); the pedal mechanism (6) and the rear wheel (2) are connected by means of a chain (8) to drive the rear wheel (2) to rotate; one end of the support rod (5) is provided with a seat cushion (7), and the other end passes through a through hole (451) left on the main beam (4) and is connected to the pedal mechanism (6); one end of the main beam (4) is connected to the handle (3), and the other end is connected to the pedal mechanism (6) by means of a first rotating shaft (61); by means of moving along the through hole (451), the support rod (5) can drive the pedal mechanism (6) to rotate along the first rotating shaft (61) and approach the main beam (4); the first fixing lock (453) is used for fixing the relative position of the support rod (5) and the main beam (4); a second rotating shaft (41) is provided at the part where the through hole (451) on the main beam (4) is connected to the handle (3), and the main beam (4) can be bent along the second rotating shaft (41) so that the front wheel (1) and the rear wheel (2) approach each other; the second fixing lock (432) is used for fixing the main beam (4) in a non-bending state. C: A cutting fixing device for textile manufacturing, comprising a cutting table (3) and a vertical support (2) provided on the upper side surface of the cutting table (3). One side of the vertical support (2) is provided with a fixing assembly (1); the vertical support (2) is connected to the cutting table (3) by means of a direction adjustment assembly; the fixing assembly (1) comprises a horizontal support (102) and an electric push rod (101); the electric push rod (101) is provided on the upper side surface of the horizontal support (102); a bearing support (111) is provide at the bottom of a piston rod of the electric push rod (101); a pressing sleeve (103) and a second pressing sleeve (110) are symmetrically provided on one side surface of the bearing support (111); a first spring (104) is provided at the inner top portion of the first pressing sleeve (103); one end of the first spring (104) is fixedly connected to a first pressing rod (105); the first pressing rod (105) is slidably connected in the first pressing sleeve (103); a first pressing pad (106) is provided at the bottom of the first pressing rod (105); a second spring (109) is provided at the inner top portion of the second pressing sleeve (110); one end of the second spring (109) is fixedly connected to the second pressing rod (108); the second pressing rod (108) is slidably connected in the second pressing sleeve (110); and a second pressing pad (107) is provide at the bottom of the second pressing rod (108). D: Disclosed are a machine head for a packing machine and the packing machine. The machine head for the packing machine comprises: a mounting base (40); a sealing assembly (1), wherein the sealing assembly (1) comprises a cutter (11) and a sealing element (12), with the sealing element (12) being used for welding a packing belt (100), and the cutter (11) being used for cutting off the packing belt (100). The sealing assembly (1) further comprises a first clamping mechanism (13), a second clamping mechanism (14) and a third clamping mechanism (15), with the first clamping mechanism (13), the second clamping mechanism (14) and the third clamping mechanism (15) being used for clamping the packing belt (100). The sealing assembly (1) is slidably arranged on the mounting base (40); a belt-conveying assembly (2), wherein the belt-conveying assembly (2) comprises a first electric motor (21), a driving wheel (22) and a guide block (23), with the guide block (23) being fixedly arranged on the mounting base (40), the driving wheel (22) being rotatably arranged on the mounting base (40), a belt-conveying channel (20) of an arc-shaped structure being provided between the driving wheel and the guide block (23), and the first electric motor (21) being used for driving the driving wheel (22) to rotate; and a driving assembly (3), wherein the driving assembly (3) is used for driving the sealing assembly (1) to be close to or away from the driving wheel (22). A balanced tensioning force is applied to the packing belt by means of the packing machine head, such that the packing quality of the packing machine is improved.

A

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed is a turn-over type dust-free automatic bag-breaking and feeding station, comprising: a frame (8); a bag-breaking compartment (5) fixedly arranged on the frame (8); a dust removal device, which is connected to the upper portion of the bag-breaking compartment (5); and a discharging device, which is connected to the lower portion of the bag-breaking compartment (5), wherein both the dust removal device and the discharging device are in communication with the bag-breaking compartment (5); a filter plate (12) is provided between the discharging device and the bag-breaking compartment (5); one end of the bag-breaking compartment (5) is provided with a feeding port (5-1), and the other end of the bag-breaking compartment (5) is provided with a waste bag recovery port (5-3); a feeding platform is provided at the feeding port (5-1) of the bag-breaking compartment (5); the filter plate (12) is obliquely arranged downwards from the feeding port (5-1) end of the bag-breaking compartment (5) to the waste bag recovery port (5-3) end of the bag-breaking compartment (5); and the end in the bag-breaking compartment (5) that is close to the feeding platform is provided with a bag-breaking device, the end in the bag-breaking compartment (5) that is away from the feeding platform is provided with a manual bag-shifting device, and a side wall of the bag-breaking compartment (5) is provided with an observation window (11). By means of the rotation of the manual bag-shifting device, a material bag can be turned over so as to clear loose material in a broken bag more thoroughly and prevent clogging when a waste bag is discharged. A: Disclosed is a plastic bag vending mechanism, comprising a cabinet (101), a bag storage bin (301), a bag suction arm (401), an air pump (502) and a numerical control system. A cabinet door (201) on the front of the cabinet (101) can be opened for replenishment. A lower side of the cabinet door (201) is provided with a bag outlet (202). The bag storage bin (301) stores a vest-shaped plastic bag (304). The bag suction arm (401) is provided on the bag storage bin (301). The bag suction arm (401) is composed of an electromechanical member, a photoelectric sensor and a suction cup (402). The suction cup (402) is connected to the air pump (502) via an air pipe, and a negative air pressure generated by the air pump (502) enables the suction cup (402) to suck up the plastic bag (304) on the bag storage bin (301). The electromechanical component delivers the plastic bag (304) from the bag outlet (202), such that a customer can take the plastic bag (304) by himself/herself. A numerical control electronic system is provided inside a case. The numerical control system can communicate with a cashier system and can receive related instructions from external devices, such as the cashier system, to control the plastic bag vending machine to carry out a corresponding action. B: A late-stage drying recycling device for color master batch, comprising a recycling box body (1). One end of the recycling box body (1) is provided with a feeding port (2), and the other end thereof is provided with a discharging port (3); a partition plate (4) inclined from the feeding port (2) to the discharging port (3) is provided in the recycling box body (1); the partition plate (4) partitions the recycling box body (1) into a recycling cavity (1-1) and an equipment cavity (1-2); the equipment cavity (1-2) is provided with at least three jacking devices (5) sequentially along the direction from the feeding port (2) to the discharging port (3); strip-shaped through grooves (7) used for allowing jacking plates (6) of the jacking devices (5) to pass through are formed in the partition plate (4); the surface of the partition plate (4) is provided with a covering supporting layer (8); the upper end portions of the jacking plates (6) are fixedly connected to the lower side surface of the covering supporting layer (8); and a cold air outlet (9) is formed in the recycling cavity (1-1). The device has the advantages that the dried color master batch can be fully cooled, and the safety of operators is guaranteed. C: An environment-friendly fiber machine, comprising a fiber machine body (1). The fiber machine body (1) comprises a feeding apparatus (2), a grinding apparatus (5), a dust removal apparatus (6), and a water circulation system; the water circulation system comprises a water tank (8), a sprayer (3), and a water collection channel (11); the top of the fiber machine body (1) is provided with the feeding apparatus (2); the bottom of the feeding apparatus (2) is connected onto the grinding apparatus (5) provided at the upper side of the fiber machine body (1); the top of the grinding apparatus (5) is provided with the sprayer (3); a filter screen (14) is provided in the fiber machine body (1) below the grinding apparatus (5); a conveyor belt (12) is provided below the filter screen (14); one end of the conveyor belt (12) is provided with a discharge port (13), and the end of the conveyor belt (12) opposite to the discharge port (13) is provided with a motor (10); the water collection channel (11) is provided under the conveyor belt (12). By means of the provision of the grinding apparatus (5), the dust removal apparatus (6), and the water circulation system, the environment-friendly fiber machine solves the problems of environmental pollution and resource waste caused during fiber processing and improves environmental protection. D: A bag-breaking machine for breaking renovation waste, the bag-breaking machine comprising two sets of rollers (1, 2) which are horizontally arranged and rotate in opposite directions. Meshing tooth-shaped structures (5) which are arranged at intervals are independently arranged on each set of rollers (1, 2), and the two sets of meshing tooth-shaped structures (5) are configured identically and arranged in a staggered manner; rotating shafts of the two sets of rollers (1, 2) are in transmission connection with variable-frequency speed reduction devices (3, 4); and the variable-frequency speed reduction devices (3, 4) are used for adjusting the speed of the rollers (1, 2).

D

Please select the most similar patent number from A, B, C and D. Which number is? A fully electric scissor-type aerial work platform, comprising a lifting unit (31), a walking unit (33), a steering unit (32) and a control unit. The lifting unit (31) comprises a lifting adjusting assembly. The walking unit (33) comprises an electric driving component (23). The steering unit (32) comprises an electric steering control component (21). The control unit comprises a whole machine controller (26), a lifting unit sensor used for collecting height and speed information of a work platform (1), and a steering unit sensor used for collecting steering angle information of the work platform (1). The lifting unit sensor, the steering unit sensor, an electric lifting control component (4), the electric steering control component (21) and the electric driving component (23) are all connected to the whole machine controller (26). The whole machine is fully electrically driven, and there is no hydraulic system involved, thereby solving the problems that an electro-hydraulic driving system of an existing scissor-type aerial work platform has a low electric energy utilization rate, the risk of hydraulic oil leakage and high maintenance costs, and achieving, by means of an efficient electric energy utilization rate of an electric motor, the aims of reducing the installed capacity of a whole machine battery and reducing the manufacturing and maintenance costs for the whole machine. A: A distributed four-wheel-drive pure electric platform, comprising: an electric energy system, comprising a battery control module (11), a power battery (12), a voltage regulation module (13), two sets of batteries (14) and two sets of junction boxes (15); a power system, comprising a vehicle control module (21), and four sets of wheel hub motors (22) connected to the power battery (12); a braking system, comprising a brake control module (31), and four sets of brake motors (32) connected to the power battery (12); and a steering system, comprising a steering control module (41), and four sets of steering gears (42) connected to the power battery (12). Also provided is a control method for the distributed four-wheel-drive pure electric platform. The distributed four-wheel-drive pure electric platform achieves the braking of the distributed four-wheel-drive pure electric platform, and improves the safety of the distributed four-wheel-drive pure electric platform. B: Disclosed is an amplitude limiting system of an insulated aerial work platform. The insulated aerial work platform (1) comprises a telescopic arm (11), an insulated foldable arm (12) and a telescopic supporting leg (13); an amplitude-variable oil cylinder (2) is installed between the telescopic arm (11) and the insulated foldable arm (12); a first pressure sensor (3) is connected to an oil pressure cavity (21) of the amplitude-variable oil cylinder (2), and is electrically connected to a controller (8) through signals; a balance valve (4) is provided on the amplitude-variable oil cylinder (2); a reversing valve (5) is connected to the balance valve (4); and a flow meter (6) is connected in series between a directional control valve (5) and the balance valve (4), and is electrically connected to the controller (8) through signals. The amplitude limiting system of the insulated aerial work platform is capable of precisely limiting the amplitude without the need for placing electrical components on the telescopic arm of the insulated aerial work platform, thereby improving the safety of aerial work. C: A multifunctional test bench for a power split hydraulic mechanical composite transmission system, comprising a platform (19) and a control system. An alternating current servomotor (1), a flow splitting mechanism (2), a hydraulic transmission unit (3) to be tested, a flow combination mechanism (4), and a hydraulic loading system (5) are provided on the platform (19); the control system comprises an industrial control computer (33), a PLC (32), an input end PLC D/A module (31), an output end PLC D/A module (39), a signal acquisition unit (36), a pressure sensor (42), a flow sensor (41), a speed regulation controller (38), a loading system controller (40), and a servomotor controller (30). Performance test of a hydraulic mechanical composite transmission system can be simply and reliably carried out, test time and costs can be greatly reduced, and performance test of the hydraulic transmission unit (3) to be tested, the ratio test of mechanical and hydraulic power flows, and the stage switching stability test are implemented. D: An automatic steering device of an agricultural machine, the device is connected to a steering axle of the agricultural machine and comprises a data acquisition unit (1) used for acquiring agricultural machine data information, wherein the agricultural machine data information comprises an actual steering angle value, a driving position, and a driving direction of the agricultural machine; a driving unit (2) used for providing rotating torque; a steering unit (3) connected to the driving unit (2) and the steering axle and used for transferring the rotating torque to the steering axle; and a control unit (4) connected to the data acquisition unit (1) and the driving unit (2) and used for obtaining the steering angle value according to the agricultural machine data information and controlling the driving unit (2) according to the steering angle value. The automatic steering device of the agricultural machine is simple in structure, capable of being used for agricultural machines with different steering angle ranges, high in efficiency and easy to operate.

B

Please select the most similar patent number from A, B, C and D. Which number is? A capping device for a medical disc-type filling apparatus and a capping method therefor, belonging to the technical field of intelligent filling. A bottle clamping device (206) is mounted on a body of a trapezoidal base (1), and a displacement sensor (205) is mounted on a connection block (202) of a capping unit (2), such that a screwed state of a bottle cap (4) can be recorded in real time, and the length of the bottle cap (4) that moves down by screwing is recorded, and a rubber piece (5091) made of a rubber material is provided at an end portion of an arc-shaped support column (507) and a slide block (5082) of the bottle clamping device (206), the rubber piece (5091) on the periphery of a filling bottle (3) effectively prevents the traces leaving on the filling bottle (3) due to excessive clamping force, the rubber piece (5091) is provided with a rhombic knurl pattern on the surface thereof, so as to prevent the filling bottle (3) from sliding. The mechanical mode for fixing the filling bottle reduces the labor intensity of an operator, and using a servo motor to control a tightening joint (2064) and using the displacement sensor (205) to record the screwed state of the bottle cap (4) improve the qualification rate of the product. A: A pipeline type intelligent spraying robot and a working method thereof. The robot comprises a frame (1), multi-wheel drive units (2), and a pre-tensioning and reducing mechanism 3. Three multi-wheel drive units (2) are provided on the body of the frame (1), drive wheels (205) are distributed at 120°, and a drive motor (206) and the drive wheel (205) are fixed on the same support, so that the drive unit (2) is simplified, thereby economizing a design space. In order to prevent the drive wheel (205) from slipping, a rubber material is surrounded on the periphery of the drive wheel (205) to increase a static friction coefficient. A synchronous belt (212) is used as the transmission mode of the drive motor (206) and the drive wheel (205), so that a constant transmission ratio during transmission is maintained, stable transmission and vibration damping are implemented, and maintenance can be facilitated during use. Three independent torque motors are used so that the robot is driven to smoothly pass through a circular bend pipe by means of differential speeds between three wheels. B: A device and method for detection of liquid impurities in bottle set filling; the detection process thereof is as follows: at initial bottle-pickup station (1010), set clamping mechanism (30) simultaneously gripping a set of filling bottles (66) from a plurality of bottle guide slots (65) of bottle feed mechanism (60); the set of filling bottles (66) to be tested is moved to a detection station (1023) equipped with a lighting system (70), and the set of filling bottles (66) is rotated at high speed, the rotational motion of the liquid inside the bottle forcing precipitated impurities in the liquid to rise; while the liquid in filling bottles (66) is in rotation, a sequence of images are taken, of the liquid in rotation, by image acquisition system (50) electrically connected to computer analysis control system (90), and computer analysis system (90) analyzes the images, calculates the size of the insoluble impurity particles, and determines whether same exceed specifications; lastly, a sorting mechanism (80) sorts out acceptable product. The design approach of the detection device and method makes use of set-type gripping, simultaneous movement, simultaneous detection, and simultaneous bottle unloading, and the invention has the advantage of a high detection rate. C: Disclosed is a non-contact hot-filling valve, comprising a hollow cavity (1) arranged on a frame, a valve rod (2) arranged in the hollow cavity (1) and capable of moving up and down, a liquid inlet (3) in communication with the hollow cavity (1), a filling opening (4) arranged below the hollow cavity (1), a driving mechanism (5) for driving the valve rod (2) to move up and down to connect or disconnect the liquid inlet (3) from the filling opening (4), a filling backflow opening (6) in communication with the hollow cavity (1), and a control mechanism (7) for controlling opening and closing of the filling backflow opening (6). The valve uses non-contact filling, thereby preventing material splashing and reducing waste of drinks. By arranging the filling backflow opening and the control mechanism, no liquid remains in the valve after hot filling, and it is possible to ensure a liquid enters filling bottles at a preset temperature. D: An industrial full-automatic capping machine, comprising a machine frame (1), a conveying device, a control device, a support device (2), a cap feeding device (3) and a tightening device (4); the cap feeding device (3), the tightening device (4), the support device (2) and the conveying device being arranged on the machine frame (1) successively, from top to bottom; the support device (2) comprising an inner support device, (5) an outer support device (6), and an ultrasonic detector (7) being provided above the inner support device (5); one end of the tightening device (4) being arranged in a sliding manner, the inside of the other end being provided with a rotating chain (8), and a pressure sensor (9) being provided on the rotating chain (8). The full-automatic capping machine can realize automation of a capping process, not only being capable of effectively controlling the cap tightening degree, reducing the production cost, but also reducing the difficulty of work, increasing working efficiency, being practical and having a wide scope of application.

D

Please select the most similar patent number from A, B, C and D. Which number is? Provided is a juicer automatic packaging apparatus comprising an automatic door panel, comprising an automatic cup-packaging apparatus and an automatic juice-dispensing apparatus; the automatic cup-packaging apparatus comprises a base disk (1), a cup-dispensing apparatus (2), a cover-dispensing apparatus (3), and a cover-pressing apparatus (4); the cup-dispensing apparatus (2), cover-dispensing apparatus (3), and cover-pressing apparatus (4) are higher than the base disk (1); the base disk (1) is connected to an electric motor one (5); the electric motor one (5) rotates to drive the base disk (1) to rotate about its center; the automatic juice-dispensing apparatus comprises a funnel (201), a juice-storage tube (202), a connecting member (203), and a guide tube (209); the bottoms of the guide tube (209) and the funnel (201) are connected; one end of the juice-storage tube (202) is closed, the other end has an opening (204), and in the middle, another opening (205) is provided on the upper part; the bottom of the guide tube (209) is located in the opening of the upper part at the middle of said juice-storage tube; the automatic packaging apparatus also comprises a door panel; the door panel comprises a door panel body (301) and a delivery opening (302); an upper stop plate (303) is provided above the delivery opening (302), and a lower stop plate (307) is provided beneath the delivery opening (302); the door panel also comprises an electric motor four (304); by means of a drive rod, the electric motor four (304) drives the lower stop plate (307) in vertical motion; the upper stop plate (303) is connected to the door panel body (301) by means of a resilient apparatus (305). A: A single-fulcrum magnetomotive centrifugal blood pump is provided with a pump body and a driving device. The pump body comprises a top cap (1), a base (2), an impeller (3) and outer magnetic steel (305); the base (2) is provided with at least three layers of bosses (201, 202, 203); the boss (201) at the top end is provided with a groove (204); a rolling ball (205) is placed in the groove (204); a patchhole (206) is arranged at the center of the bottom of the base (2); vanes (301) and an annular joint (302) are arranged on the impeller (3); connecting rods (303) are arranged in the inner circle of the annular joint (302) and gathered around the center of the inner circle of the annular joint (302); a circular arc central groove (304) is formed at the bottom of the gathering position of the connecting rods, and is matched with the rolling ball (205) in the groove (204) in the boss to form a single-fulcrum bearing; the outer magnetic steel (305) is arranged inside the vanes (301); the driving device comprises a transmission shaft (5) and a driving motor (4) provided with a motor rotor (401); the motor rotor (401) is sleeved with the transmission shaft (5); the transmission shaft (5) is inserted into the patchhole (206); and inner magnetic steel (501) is arranged inside the transmission shaft (5). The blood pump can effectively reduce the incidence rate of thrombus and hemolysis as the pre-filling quantity is less; the structure is simple and stable; the mounting is convenient; and the cost is low. B: A mortar car with a self-walking hydraulic chassis includes a self-walking chassis and a mortar upper fixture (6) mounted on the self-walking chassis. The self-walking chassis includes a frame (1), a hydraulic power module (2) fixed on the frame (1), more than one bidirectional drive wheel groups (3) and a control module (4). The bidirectional drive wheel group (3) includes a walking bracket (301), wheels (302) and a steering module. The walking bracket (301) is fixed on a longitudinal beam (11) and further fixed on a chassis frame beam (102) of the frame (1) through the longitudinal beam (11). More than one distance measuring sensors (303) used for detecting the distance between wheels (302) and the inner side walls of rails are arranged on the walking bracket (301). The control module (4) receives the distance signals collected by the distance measuring sensors (303) and judge whether it is safe based on the distance signals, then outputs a control signal to the steering module. The hydraulic power module (2) includes a driving motor (201), a hydraulic pump (202) and a hydraulic motor (203). The output end of the hydraulic motor (203) is connected to one wheel (302) by a transmission mechanism. The invention has advantages of simple and compact structure, low cost, broad applicability, high automation, flexible steering and other states. C: A freshly squeezed orange juice bottling production line for a vending machine, comprising a production line structure frame (1), a bottle grabbing mechanical arm (2), a mechanical arm connecting plate (3), a horizontal delivery mechanism (4), a filling apparatus (5), a lid applying mechanism (6), a lid adjusting mechanism (7), a lid tightening mechanism (8), and a rotary product-output mechanism (9). The bottle grabbing mechanical arm (2) is disposed on and tightly fixed to the mechanical arm connecting plate (3), the mechanical arm connecting plate (3) is disposed on and tightly fixed to the horizontal delivery mechanism (4), the horizontal delivery mechanism (4) is disposed on and tightly fixed to the production line structure frame (1), the filling apparatus (5) is disposed on and tightly fixed to the left side of the lid applying mechanism (6), the lid adjusting mechanism (7) is disposed on and tightly fixed to the right side of the lid applying mechanism (6), the lid applying mechanism (6) is positioned above the production line structure frame (1), the lid tightening mechanism (8) is disposed on the right side of the lid adjusting mechanism (7) and is tightly fixed above the production line structure frame (1), and the rotary product-output mechanism (9) is disposed under the horizontal delivery mechanism (4) and is fixed to the production line structure frame (1). The present production line applies and tightens the lids of filled bottles of freshly squeezed orange juice in a vending machine and outputs same, thus implementing automatic production processing and control. D: Provided is a wheat straw crushing apparatus, comprising a machine body (1), a base (101), and casters (102), the machine body being fixedly mounted on one end of the upper surface of the base, the casters being rotatably mounted on the bottom of the base. A first motor (2) is fixedly mounted on the other end of the upper surface of the base, a drive roller (201) is fixedly connected to a power output end of the first motor, and a sound insulation cover (202) is fixedly arranged on the surface of the first motor. A rotating disc (3) is rotatably arranged in an inner cavity of the machine body, a crushing cutter head (302) is fixedly mounted on the surface of the rotating disc, an arcuate base (303) is fixedly mounted on the bottom of the inner cavity of the machine body, an anti-impact device (304) is fixedly mounted on the upper surface of the arcuate base, and the anti-impact device and the crushing cutter head are fitted with each other. A conveyor belt (4) is fixedly mounted on one end of the top of the machine body. The crushing apparatus, when crushing wheat straw, can feed material automatically, reducing the labour intensity of the operator while also improving wheat straw crushing efficiency and quality.

C

Please select the most similar patent number from A, B, C and D. Which number is? Disclosed is a normal-pressure milk-filling machine, comprising a liquid storage tank (1), a filling valve (2), a main shaft (3), a bottle tray (5), a bottle input shift wheel (6), a bottle output shift wheel (7), a lifting device (9) and a transmission device (10), wherein the filling valve (2) is fixedly mounted at a bottom end of the liquid storage tank (1), and the bottom end is adapted thereto; the liquid storage tank (1) is fixedly mounted on the main shaft (3); the bottle tray (5) is arranged around the main shaft (3); a guide plate (8) is mounted at the bottom of the bottle tray (5); the bottle input shift wheel (6) and the bottle output shift wheel (7) are symmetrically arranged on the guide plate (8), and the bottle input shift wheel (6) and the bottle output shift wheel (7) are adapted to each other; a frame (4) is arranged below the guide plate (8), and the lifting device (9) and the transmission device (10) are mounted in the frame (4); the bottle tray (5) is sleeved over and adapted to the lifting device (9); and the main shaft (3) passes through the frame (4) and is connected to the transmission device (10). The normal-pressure milk-filling machine has a simple and rational structural design, can precisely control the humidity and temperature of the liquid storage tank (1), and has excellent pipe sealing performance. A lifting rod (9-3) can drive a bottle tray rod (9-1) to lift without deviation, and a lifting rod slide sleeve (9-5) does not produce friction when lifting in a bottle tray rod sleeve (9-2). A: A plastic sheet equidistant cutting device for the chemical industry, comprising a worktable (1). Four corners on a bottom end of the worktable (1) are fixedly connected to support legs (2). A conveyor belt (3) is fixedly arranged in the middle of the top end of the telescopic worktable (1). A lifting/lowering plate frame (4) is fixedly arranged on the top end of the worktable (1) located on the side of the conveyor belt (3). A sheet hopper (5) is fixedly arranged on the side of the worktable (1). The tail end of a rotating shaft of a transmission wheel on one end of the conveyor belt (3) is fixedly connected to a first stepper motor (7). A second stepper motor (8) is fixedly arranged in the middle of the top end of the lifting/lowering plate frame (4). A ball screw (9) is provided inside the lifting/lowering plate frame (4) along the central axis. The top end of the ball screw (9) penetrates through the top end of the lifting/lowering plate frame (4), and is fixedly connected to the tail end of a rotating shaft of the second stepper motor (8). An outer wall of the ball screw (9) is threadedly connected to a lifting/lowering table (10). A fixed shaft (12) is fixedly arranged in the middle of both ends of the lifting/lowering table (10). The tail end of the fixed shaft (12) is fixedly connected to a fixture base (13). The plastic sheet equidistant cutting device for the chemical industry is simple and reasonable in structure, has a novel design, and has high equidistant cutting efficiency in plastic sheet equidistant cutting. B: Intelligent filling equipment and a filling method thereof. The equipment comprises a bottle feeding mechanism (1), weighing parts (2), filling needle parts (3) and a bottle discharging mechanism (4), and further comprises a transfer mechanism (6); the weighing parts (2) are provided at the bottle feeding end of the bottle discharging mechanism (4); the filling needle parts (3) are provided above the weighing parts (2); the bottle discharging mechanism (4) is provided with a buffer platform (41); the bottle feeding end of the bottle discharging mechanism (4) and the buffer platform (41) are oppositely arranged at two sides of the weighing parts (2). The filling method comprises the steps of: S1, bottle feeding; S2, bottle taking; S3, bottom pushing and bottle placement; S4, filling: performing the next bottle taking by means of the transfer mechanism (6), first weighing empty medicine bottles by the weighing parts (2) and then starting filling, keeping weighing during filling until the filling amount reaches a target value, and performing the next bottle pushing and bottle placement by means of the transfer mechanism (6) after the filling is finished; and S5, repeatedly performing step S4 until the filling of all the medicine bottles is finished. The intelligent filling equipment has a compact structure and facilitates the improvement of the filling precision and product yield. C: An agricultural digging apparatus, comprising a base (1), wheels (2), a push handle (4), a lifting support (5), a first motor (6), a guide plate (7), an elliptical cam (8), a contact wheel (9), a lifting rod (10), a fixing block (11), a spring (12), a connecting plate (13), etc. The wheels (2) are mounted at the bottom of the base (1), a through hole is formed in the middle of the base (1), a left end of the base (1) is provided with the push handle (4), and the top of the base (1) is provided with the lifting support (5); a right side of the lifting support (5) is provided with the first motor (6) and the guide plate (7), the first motor (6) is provided above the guide plate (7), and the elliptical cam (8) is mounted at an upper portion of the first motor (6). The agricultural digging apparatus can quickly dig a pit in the ground, and has high digging efficiency, and saves time and manpower. D: An electronic component welding apparatus for circuit board production, comprising a bottom plate (1); a support column (2) is mounted on the bottom plate (1), a first sliding groove (3) is provided inside the support column (2), a lifting/lowering device (4) is mounted inside the first sliding groove (3), a first support plate (5) is mounted at the top of the lifting/lowering device (4), a rotating motor (6) is mounted inside the first support plate (5), and a fixing device (7) is mounted on the rotating motor (6); a rack (8) is mounted at an edge portion of the bottom plate (1), a top plate (9) is mounted at the top of the rack (8), a second sliding groove (10) is provided beneath the top plate (9), a sliding block (11) is provided inside the second sliding groove (10), a hanging rod (12) is mounted at the bottom of the sliding block (11), and a welding head (13) is mounted at the bottom of the hanging rod (12). Said apparatus has improved adaptability by modifying the fixing device (7), and can perfectly fix circuit boards when facing circuit boards of different models and thicknesses; and the lifting/lowering device (4) is attached, which allows for lifting/lowering of a placement platform only by manually controlling a rotating handle (47), being convenient and quick.

B

Please select the most similar patent number from A, B, C and D. Which number is? A wine-cabinet type intelligent wine distributor and a control method. The wine -cabinet type intelligent wine distributor comprises a wine cabinet main body (2) and a wine distributor, wherein the wine cabinet main body (2) comprises a wine storage chamber for placing wine bottles, and a wine distributing chamber for placing the wine distributor; the wine distributor comprises a wine distributor bottle (5) provided with a wine outlet (12), and further comprises a wine outlet key (4) for controlling the wine flowing out of the wine outlet (12) of the wine distributor bottle (5). The wine-cabinet type intelligent wine distributor has not only functions of a normal wine cabinet, but also a wine distributing function, is multi-purpose and powerful in functions, thereby meeting the requirements of intelligent-home users. A: A wine decanter comprises a wine feeding funnel that axially passes through the whole body of the wine decanter, a mixing cavity, and a wine discharge funnel. A gas guide tube is disposed in the wine feeding funnel. One end of the gas guide tube is accommodated in the mixing cavity, and the other end is provided with an umbrella end capable of fully covering but not blocking the passage of the gas guide tube. The gas guide tube is further provided with a connection sheet perpendicular to the axial direction of the gas guide tube and having several through holes. The periphery of the connection sheet is matched with and connected to an inner wall of the wine feeding funnel, and divides the wine feeding funnel into upper and lower cavities. The wine decanter enables wine to contact air for multiple times, avoids blocking the gas inlet tube, and obstructs dust. B: A temperature and humidity-controlled wine container, comprising: a container (100), an inner container (110) defining a wine storage chamber (151) therein; an air channel cover plate (200), an air channel (300) being formed between the air channel cover plate (200) and the inner container (110); an evaporator (500); a compressor; a water storage member (600), disposed at the bottom of the evaporator (500); an air supply device (700), drawing air flow from the wine storage chamber (151) and supplying the air flow to the evaporator (500), at least a portion of the air flow flowing through a first side face (510) of the evaporator (500) and then flowing to the wine storage chamber (151), and another portion of the air flow flowing through a second side face (520) of the evaporator (500) and the water storage member (600) and then flowing to the wine storage chamber (151); an air guiding channel (400), guiding the air flow at the bottom of the air channel (300) to an air vent port (321) at top of the air channel cover plate (200). The controller adjusts the operation states of the air supply device (700) and the compressor according to the temperature and humidity measured by a temperature and humidity measuring member (800). C: An alcoholic drink pourer for cooling alcoholic drink. The alcoholic drink pourer comprises an alcoholic drink through plug body (10) and a cold storage bar (20). One end of the alcoholic drink through plug body (10) can be plugged into an alcoholic drink bottle mouth. A flexible rubber sleeve (11) used for being plugged into the alcoholic drink bottle mouth and hermetically fixed onto the alcoholic drink bottle mouth is sleeved on the alcoholic drink through plug body (10). The cold storage bar (20) is detachably connected onto one end plugged into the alcoholic drink bottle mouth, of the alcoholic drink through plug body (10). A sealing cavity (21) is disposed inside the cold storage bar (20). A cold storage agent (30) is filled in the sealing cavity (21). An alcoholic drink pouring opening (12) is disposed in the top of the alcoholic drink through plug body (10). An alcoholic drink outlet hole (13) is disposed in one end capable of being plugged into an alcoholic drink bottle, of the alcoholic drink through plug body (10). A drainage pipe (14) is disposed between the alcoholic drink pouring opening (12) and the alcoholic drink outlet hole (13) in the alcoholic drink through plug body (10). D: A frequency conversion ultrasonic wine aging device for bottled wine comprises a base (1), and an opening portion formed by extending upwards along a peripheral edge of the base (2); a container is arranged in the opening portion and used for containing a sound conducting medium solution; when the frequency conversion ultrasonic wine aging device is used, a wine bottle (3) is placed in the container and immersed in the sound conducting medium solution; an ultrasonic transducer (21) and a control circuit board (23) are mounted in the base (2); the control circuit board (23) is provided thereon with an ultrasonic generating unit and an ultrasonic frequency modulation unit; the ultrasonic generating unit is used for converting a commercial power into an ultrasonic frequency alternating current signal; the ultrasonic frequency modulation unit serves to modulate the frequency of the ultrasonic frequency alternating current signal so that the frequency of the ultrasonic frequency alternating current signal varies cyclically within a set range; the frequency-modulated ultrasonic frequency alternating current signal is input into the ultrasonic transducer (21) to cause the ultrasonic transducer (21) to generate an ultrasonic wave; and the ultrasonic transducer (21) is used to transmit the ultrasonic wave into the container. The frequency conversion ultrasonic wine aging device can generate the best ultrasonic frequencies required for ripening and aging of various types of wines, and also realizes acceleration of a wine ripening process to achieve a quick aging effect.

B

Please select the most similar patent number from A, B, C and D. Which number is? A device for drinking water comprises a main body (1). The main body (1) comprises a base (11) provided with anti-slip pads (6), and the anti-slip pads (6) are to be in contact with a placement location, so that the device for drinking water will not easily slip when placed via the base, and is stably placed. A: Disclosed is a die fixing apparatus for a numerical control machine tool, the die fixing apparatus relating to the technical field of numerical control machining and comprising a bottom plate (1), wherein the center of the bottom plate (1) is connected to an air pipe (2) in an inserted manner; one end, away from the bottom plate (1), of the air pipe (2) is fixedly connected to a vacuum pump (3); an upper surface of the bottom plate (1) is provided with an anti-slip pad (4); an upper surface of the anti-slip pad (4) is fixedly connected to a suction cup (5); a suction hole (6) is provided inside the suction cup (5); one end, away from the vacuum pump (3), of the air pipe (2) is fixedly connected inside the suction hole (6); an outer surface of the suction cup (5) is fixedly connected to a fixing plate (7); the bottom of the fixing plate (7) overlaps the upper surface of the anti-slip pad (4); an upper surface of the suction cup (5) is provided with a fixing clamp groove (8); the fixing plate (7) is provided with a fixing clamp block (9) adapted to the fixing clamp groove (8); and an inner side of the fixing plate (7) is fixedly connected to an anti-slip plate (10). By means of the configuration of the air pipe, the fixing plate, the fixing clamp groove, the anti-slip plate, etc., the fixing apparatus can enhance the fixing effect and avoid a side face or the bottom of a workpiece being abraded by the apparatus during fixation; and by means of the configuration of a rubber plug, quick corrosion caused by a third screw and a third screw hole being immersed by a cooling liquid can be reduced. B: A device for drinking water comprises a main body (1) and a valve (2) which are detachably fixed. The main body (1) and the valve (2) are fixed in a detachable fixing mode, facilitating inspection and cleaning when a channel between the main body (1) and the valve (2) for transporting liquid is blocked. C: A decorative lamp, comprising a housing (1), a circuit board (2) fixed inside the housing (1), a bottle (4) fixed on the housing (1) and internally provided with a liquid, and a base (3) fixed at the bottom of the housing (1); the base (3) being larger than the bottom of the housing (1). The decorative lamp comprises a housing (1), a circuit board (2) fixed inside the housing (1), a bottle (4) fixed on the housing (1) and internally provided with a liquid, and a base (3) fixed at the bottom of the housing (1); thus when placing the decorative lamp, the base (3) makes contact with the placement position and the base (3) is larger than the bottom of the housing (1); in this way, stability is increased during placement of the decorative lamp and the decorative lamp is stable when placed, preventing it from damage when being placed. D: A hand-cranked music box comprising a housing (1), a sound cylinder provided with multiple protrusions, sound plates fitted with the sound cylinder, and a transmission gear fixed at one extremity of the sound cylinder, also comprising a crank handle (2) provided with a drive gear, where the drive gear is meshed with the transmission gear. An anti-slip pad (3) is provided at the bottom of the housing (1). Because the anti-slip pad (3) is provided at the bottom of the housing (1), the hand-cranked music box is not prone to slipping when being placed and is not prone to being damaged, thus allowing the hand-cranked music box to be placed stably, thereby preventing damages. When a user cranks the crank handle (2), the drive gear drives the transmission gear to drive the sound cylinder into rotation, and the protrusions on the sound cylinder generate vibrations with the sound plates to generate sounds, thus producing music.

B

Please select the most similar patent number from A, B, C and D. Which number is? Provided are a filling body and the use thereof. The filling body comprises a surface fabric, a lining fabric and a filling material between the surface fabric and the lining fabric, wherein the ventilation capacity of the lining fabric is between 10.0 cm 3 /cm 2 /s and 200 cm 3 /cm 2 /s, and the filling material is a continuous fibre filling cotton with a core-sheath structure, wherein same at least comprises dacron continuous fibres. The filling body has the characteristics of a light weight, heat preservation and breathability, and also has an enhanced laundering durability and motion followability, while maintaining the original comfort. A: A structure preventing down feather displacement and penetration and maintaining fabric elasticity and a manufacturing process therefor. The structure comprises two fabric layers (1) and down feathers (2), wherein the down feathers (2) are filled into the space between the two fabric layers (1); the structure further comprises multiple connection points (3); the connection points (3) are used for positioning the down feathers (2) and distributing the down feathers (2) in a netted mode; the two fabric layers (1) both are an extended, elastic fabric, and the down feathers (2) are wrapped with elastic air-permeable films (4). The structure enables the fabric elasticity of elastic down feather products to be maintained to the maximum extent, enables the distribution of down feathers to be always kept even and prevents down feather penetration. B: A down fabric, comprising an inner fabric, an outer fabric, and an adhesive layer; the inner fabric comprises a first down cladding layer (1) and a basal body silky layer (2); the outer fabric comprises a second down cladding layer (3) and a windproof layer (4); sealed down bulges (5) are regularly arranged between the first down cladding layer (1) and the second down cladding layer (3); the cross section of the down bulges (5) is honeycomb-shaped; the down bulges (5) are filled with down; and the intersections of adjacent down bulges (5) are respectively adhered to the first down cladding layer and the second down cladding layer by means of the adhesive layer. Because the down bulges are filled with down, and the cross section of the down bulges is honeycomb-shaped, seamless connection is achieved among adjacent down bulges (5), avoiding poor thermal insulation performance caused by too large down intervals; moreover, the intersections of adjacent down bulges (5) are respectively adhered to the inner fabric and the outer fabric by means of the adhesive layer, to avoid the problem of down drilling-out caused by thread connection. C: A filling object. The filling object is provided with covering cloth (1), lining cloth (2) and a filling material. The filling material is made of long fiber cotton (3). The filling material and the lining cloth (2) are integrally formed, and the covering cloth (1) and the lining cloth (2) are integrally formed. The covering cloth (1) and the filling material are indirectly connected by means of the lining cloth (2). The filling object can improve performance of resisting again down leakage, and alleviate the problems of deviation and caking of the filling material after being washing. In addition, the fluffy performance of the filling material is good, the filling material has the feature of having a light weight and keeping warm, and provides the style of softness and smoothness for hand feeling, and has good performance of sustaining machine washing, and can be used to replace eiderdown filling products. D: A double-sided knitted fabric comprises a surface layer (1) and an inner layer (2), which are connected in a looping manner. The inner layer (2) has a concavo-convex structure, and at least one of the longitudinal and lateral directions of each convex portion unit (3) is composed of 3 to 10 loops. The skin-contact surface of the double-sided knitted fabric has excellent dry performance, has a good comfort level for wearing, especially is suitable for production of T-shirts, POLO shirts and the like.

C