Patent Publication Number: US-2023157476-A1

Title: Kitchen appliance

Description:
CROSS REFERENCE TO RELATED APPLICATION 
     The present application is a U.S. National Phase of International Application No. PCT/CN2021/085582, entitled “KITCHEN APPLIANCE”, and filed on Apr. 6, 2021. The entire contents of each of the above-listed applications are hereby incorporated by reference for all purposes. 
    
    
     TECHNICAL FIELD 
     The present disclosure relates to the field of mechanical and electronic technology, and more particularly, to a kitchen appliance. 
     BACKGROUND 
     A stir-frying machine is a new generation of microcomputer-controlled intelligent cooking apparatus. The apparatus is generally convenient, simple to operate, and produces no oil fume. The stir-frying machine not only can achieve automatic feeding, seasoning, stir-frying, temperature control, cleaning, discharging, but also has functions of stirring, frying, cooking, deep-frying, blasting, braising, steaming, boiling, brazing, stewing, and casseroling in one pot, making it easy to automate and make the cooking process more interesting. For the existing stir-frying machine product on the market, if the user accidentally pours water from the cup into the mainframe or the user forgets to install the blade holder into the cup and then pour the water, it tends to cause the mainframe to be soaked in water for a large area. An existing solution is to increase the size of a side drainage hole. However, large-area accumulated water cannot be discharged by the side drainage hole quickly. At that time, the accumulated water may overflow through a gap between a clutch and a mainframe upper cover, causing the motor to fail or safety problems due to water entering in the motor. 
     Therefore, in view of the above problems, the present disclosure provides an overflow structure applicable to a kitchen appliance, which adopts a variety of drainage means to drain water and improve safety in use, which has important practical significance. 
     SUMMARY 
     In order to solve the above-mentioned problems in the prior art, the present disclosure provides an overflow structure applicable to a kitchen appliance, which adopts a variety of drainage means to drain water and improve safety in use. 
     The technical solution adopted by the present disclosure to solve this problem is as follows. 
     A kitchen appliance, including an overflow structure disposed in a mainframe of the kitchen appliance, a motor being assembled in the mainframe, wherein a mainframe upper cover is disposed above the motor, and the mainframe upper cover is connected to the mainframe as a whole piece and is used to place a container cup assembly for food handling, a shaft of the motor is connected to a clutch for power transmission, a base is installed at a lower end of the mainframe, wherein the overflow structure includes: 
     a mainframe-upper-cover drainage structure including at least one side drainage hole opened at an edge of the mainframe upper cover, and a first water receiving part for transferring liquid in the side drainage hole; 
     an interference drainage structure including a water receiving tray for receiving liquid overflowing from a gap between the clutch and the mainframe upper cover, and a second water receiving component for transferring liquid in the water receiving tray. 
     Further preferably, the first water receiving part includes a base drainage pipe vertically installed on the base, and a water receiving pipe inserted into the upper end of the base drainage pipe, and a lower end of the side drainage hole is tightly connected with an opening end of the water receiving pipe through a transfer structure. The base drainage pipe extends through the base. 
     Further preferably, the transfer structure includes an inclined transfer bottom surface formed by bending at least once along one side edge of the side drainage hole, a connecting surface connected between the transfer bottom surface and other edge of the drainage hole, and an opening end of the transfer structure faces the water receiving pipe. 
     Further preferably, the opening end of the water receiving pipe faces the transfer structure and closely connected to the opening end of the transfer structure. 
     Preferably, the water receiving tray includes a receiving tray surface and a tray wall extending upward along an edge of the receiving tray surface, one side of the tray wall is formed with a water receiving notch, and a water guiding lip extends downward from an edge of the receiving tray surface below the water receiving notch. 
     Further preferably, the receiving tray surface includes a circular receiving surface, an extension surface extending toward one side along the first receiving surface. 
     Further preferably, the receiving tray surface is provided with a first motor hole for the shaft of the motor to extend therethrough, and a first water retaining wall extends upward from an edge of the first motor hole. The center of the motor hole coincides with the center of the receiving surface. 
     Further preferably, the second water receiving part includes a base drainage pipe vertically installed on the base, and the water guiding lip is disposed right above the base drainage pipe in the second water receiving part. 
     Further preferably, on the mainframe upper cover, there is provided a second motor hole for partially inserting the clutch, and a circle of second water retaining wall is formed by extending upward from an edge of the second motor hole. 
     Further preferably, a lower part of the clutch is formed with at least two coaxially arranged water retaining walls, and a lower end of an outer water retaining wall is higher than a lower end of an inner water retaining wall. 
     Further preferably, the first water retaining wall and the second water retaining wall respectively extend into separate water retaining walls, and there is a gap between the second water retaining wall and the clutch. 
     Further preferably, from the outer circumference of the second motor hole, at least one circle of water retaining walls extends downward. 
     Further preferably, the kitchen appliance further includes: a safety link overflow structure disposed inside a safety link body, and the safety link body is assembled inside the mainframe. 
     Further preferably, an upper trigger lever and a lower trigger lever are vertically formed on the upper and lower parts of the safety link body respectively, and a trigger inclined surface for triggering on/off of the micro switch is formed on one side of the safety link body. 
     Further preferably, the trigger inclined surface and the overflow channel are disposed on two opposite sides of the safety link body respectively. 
     Further preferably, an upper surface of the mainframe is recessed downward to form the mainframe upper cover for the container cup assembly to be assembled thereon, an avoiding hollow cylinder is provided on the mainframe upper cover for the upper trigger lever to pass upward therethrough, and a drainage slit is disposed between the avoiding hollow cylinder and the upper trigger lever. 
     Further preferably, the safety link overflow structure includes: 
     a water receiving groove formed as a recess from an upper part of the safety link body, having a semi-closed bottom and disposed under a drainage slit, downward from the lower end of the drainage slit a circle of water retaining wall being formed; 
     a drainage hole disposed at a lower part of the safety link body and communicated with the water receiving groove through an overflow channel; and 
     a drainage gap disposed on the base. 
     Further preferably, the drainage hole is provided at least one pair, the at least one pair of drainage holes are oppositely disposed on two sides of a lower part of the overflow channel, and a lower opening end of the water receiving groove correspond to the overflow channel and the drainage holes up and down. 
     Further preferably, a plane where a lower end of the water retaining wall is located is flush with a plane where an upper end of the water receiving groove is located or is located below a plane where an upper end of the water receiving groove is located. 
     Further preferably, the kitchen appliance further includes: a micro switch and a micro switch bracket; 
     the safety link body and the micro switch are respectively disposed inside the micro switch bracket, a slot is opened on the upper part of the micro switch bracket for the safety link body to inset thereinto, and a first via hole is opened on the lower part of the micro switch bracket for the lower trigger lever to freely extend therethrough, and a compression spring assembly is sleeved on the lower trigger lever between the safety link body and the first via hole. 
     Further preferably, the elastic piece of the micro switch is arranged facing the trigger inclined surface. 
     Further preferably, a water retaining plate is also provided inside the micro switch bracket and formed at a lower position between the safety link body and the micro switch. 
     Further preferably, each corner end of the base is respectively provided with an installation position for assembling a suction disc foot assembly, the installation position includes: a via hole for the suction disc foot, the via hole penetrating the base and allows the suction disc foot assembly to suspend through it; and screw posts respectively fixed to a periphery of the via holes for the suction disc feet, and the drainage gap is disposed between the suction disc foot assembly and the via hole for the suction disc foot. 
     Further preferably, the kitchen appliance further includes: a cover opening protection structure, a container cup assembled on the mainframe, a screw lid snapped on the container cup, a micro switch and a handle shell fixedly connected to one side of the container cup; 
     wherein the cover opening protection structure includes: 
     a handle safety link, which can move up and down in the handle shell, includes a link body, a driving inclined surface and a driving rod respectively provided on an upper part and a lower part of the link body; 
     a hook-type buckle, which is fixedly connected to a lower end of the screw lid, and has a buckle inclined surface formed at a lower part of the hook-type buckle for driving the handle safety link to move up and down; and 
     the micro switch, which is assembled inside the mainframe, and the driving rod drives an elastic piece of the micro switch to be pressed down or bounced up through the safety link body in the kitchen appliance. 
     Further preferably, wherein the hook-type buckle includes a supporting portion and a trigger portion which are connected as one body, and the buckle inclined surface is formed at a lower part of the trigger part, and one side of the buckle inclined surface is recessed to form a positioning slot. 
     Further preferably, the handle shell includes a handle seat, a handle cover assembled on the handle seat, the handle seat is provided with a hollow working groove along a length direction of the handle seat, the handle safety link is disposed in the hollow working groove and can move up and down inside the hollow working groove, an upper part of the handle seat is provided with an opening for the trigger portion to enter therethrough, and a lower part of the handle seat is provided with a second via hole for the driving rod to freely extend therethrough. 
     Further preferably, one side of the driving inclined surface is raised with a positioning rib that matches with the positioning slot. 
     Further preferably, at least two sliding slots are formed on the link body along a length direction of the link body, and a first guiding wheel is engaged in the sliding slot, the first guiding wheel is slidably connected with the sliding slot, and the first guiding wheel is fixedly connected to the container cup or the handle seat. 
     Further preferably, a trigger inclined surface is formed on one side of the safety link body facing the micro switch, the upper and lower parts of the safety link body are vertically connected to an upper trigger lever and a lower trigger lever respectively, and the upper trigger lever abuts up and down against the driving rod. 
     Further preferably, the compression spring assembly in the kitchen appliance includes an upper compression spring and a lower compression spring respectively sleeved on the driving rod and the lower trigger level in the kitchen appliance, the upper compression spring is disposed between the link body and the second via hole, and the lower compression spring is disposed between the safety link body and the first via hole on the micro switch bracket. 
     Further preferably, the kitchen appliance includes: a container cup fixing structure assembled on the mainframe upper cover of the mainframe, the mainframe upper cover is configured to assemble a container cup assembly therein, the container cup fixing structure includes locking buckle members and a rotating ring; 
     a number of the locking buckle members is at least three, and the locking buckle members are evenly distributed on a periphery of the mainframe upper cover, the locking buckle member includes a locking buckle bracket and a locking buckle that can be extended or retracted on the locking buckle bracket; 
     the mainframe upper cover is evenly provided with locking buckle openings for the locking buckles to extend or retract therethrough; 
     the rotating ring is rotatably assembled on a periphery of the mainframe upper cover and is provided with a release lever for turning the rotating ring to rotate, and rotating ring bosses for driving the locking buckles to retract. 
     Further preferably, the container cup assembly includes a container cup, a cup holder, and a handle shell, which are integrally installed, and the cup holder is evenly provided with at least three fixing holes for the locking buckles to be inserted in one-to-one correspondence. 
     Further preferably, the mainframe upper cover includes an upper cover side wall in a cylindrical surface form, an upper cover bottom wall closing at a lower part of the upper cover side wall, and a circle of upper cover outer edge formed on an upper edge of the upper cover side wall and extending outwards. 
     Further preferably, the locking buckle bracket is fixed on the mainframe on the periphery of the upper cover side wall, and a sliding hole for sliding fit with the locking buckle is opened therethrough on the locking buckle bracket. 
     Further preferably, the locking buckle includes: 
     a locking buckle sliding portion, the locking buckle sliding portion being perpendicular to the locking buckle bracket and can slide freely inside the sliding hole, the line of the axis of the locking buckle sliding portion being parallel to the radial direction of the mainframe upper cover; 
     a locking buckle head, the locking buckle head being installed at one end of the locking buckle sliding portion proximate to the upper cover side wall, the locking buckle head having a right-angle trapezoidal block structure; 
     a locking buckle boss, the locking buckle boss being installed on the locking sliding part, and being a right-angle trapezoidal block structure; 
     a return spring, the return spring being sleeved on the locking buckle sliding portion between the locking buckle bracket and a limit ring. 
     Further preferably, the rotating ring has a ring structure, the rotating ring is provided with at least three arc-shaped sliding slots at equal intervals along a circumferential direction of the rotating ring, the arc-shaped sliding slot is engaged with a second guiding wheel, the second guiding wheel is slidably connected to the arc-shaped sliding slot and the second guiding wheel is fixedly connected to the upper cover outer edge. 
     Further preferably, an arc-shaped through slot is provided extending along a circumferential direction of the upper cover outer edge and penetrating the upper cover outer edge, a lower end of the release lever is fixedly connected to the rotating ring through a connecting rod, and the connecting rod is movably inserted into the arc-shaped through slot. 
     Further preferably, at least three ball grooves are provided at equal intervals on the upper surface of the rotating ring, and a steel ball is installed in the ball groove. 
     Further preferably, the number of the rotating ring bosses is the same as the number of the locking buckle members, the rotating ring boss is a right-angled trapezoidal block structure, and the inclined surface of the rotating ring boss is opposite to the inclined surface of the locking buckle boss. 
     Further preferably, the container cup fixing structure also includes a tension spring, the tension spring has one end fixed on the rotating ring through a self-tapping screw with a pad and the other end fixed on the upper cover outer edge through a self-tapping screw with a pad. 
     Further preferably, the kitchen appliance further includes: a container cup assembly, a coupler fixing structure and a coupler, and the coupler fixing structure is configured to secure the coupler on a cup bottom structure of the container cup assembly, and the coupler fixing structure includes: 
     a sealing structure, arranged on an end surface of the coupler which is attached to the cup bottom structure and used to close a gap between the coupler and the cup bottom structure; and 
     a connecting structure, the coupler and the cup bottom structure being fixedly connected through the connecting structure. 
     Further preferably, the container cup assembly includes the container cup, the handle shell and the cup bottom structure installed in one piece, the cup bottom structure includes the cup bottom cover and the cup holder installed in one piece, and the coupler is installed between the cup bottom cover and the cup holder. 
     Further preferably, the sealing structure includes at least one circle of sealing slot opened on an upper end face of the coupler and used for filling sealing element. 
     Further preferably, the sealing slot is in a closed shape, and the shape of the sealing slot is similar to the shape of the outer contour of the coupler. 
     Further preferably, when the sealing slot is provided not less than two circles, the sealing slot is proportionally reduced according to the outer contour shape of the coupler and arranged from the outside to the inside. 
     Further preferably, a metal ground pin and a conductive pin vertically arranged are respectively installed on the lower end surfaces of the cup bottom cover and the coupler. The coupler is also provided with a punch hole for the metal ground pin to pass through. 
     Further preferably, at least one circle of sealing annular slot for filling the sealing element is further formed on an upper end surface of the coupler, and the sealing annular slot surrounds a periphery of a punch hole. 
     Further preferably, the connecting structure includes at least two pairs of connecting hole and connecting screw hole which are respectively provided on the cup bottom cover and the coupler and correspond to each other. The connecting hole and the connecting screw hole are fixedly connected by a connecting screw. 
     Further preferably, the coupler fixing structure further includes a positioning structure, and the positioning structure includes at least a pair of positioning notch and positioning perimeter which are respectively arranged on the cup bottom cover and the coupler and are engaged and positioned with each other. 
     Further preferably, the kitchen appliance includes a screw lid sealing structure and a screw lid, the screw lid sealing structure is assembled on the screw lid, an outer periphery of a bottom surface of the screw lid has an outer edge of the lid, the bottom surface of the screw lid is further provided with a circle of annular wall integrally connected with the screw lid, and the screw lid sealing structure includes: 
     a sealing ring assembly, including a sealing ring sleeved on the annular wall, an upper bracket arranged between the sealing ring and the annular wall for limiting everting of an upper part of the sealing ring, and a lower bracket for compressing the sealing ring and limiting displacement of the sealing ring, wherein an edge of the sealing ring is formed with at least one layer of flange with a lower part everted, an outer edge of a free end of the flange is an R angle sealing portion, and an inner edge of the free end of the flange is a parting line position; 
     there are at least three assemblies of screw lids and screw buckles, and the assemblies are distributed at intervals on an inner side of the outer edge of the lid. 
     Further preferably, the longitudinal section of the upper bracket is in a “r” shape, which includes a first annular base portion lying horizontally, and an annular rib portion formed on the outer edge of the first annular base portion and extending downwardly for wrapping the upper peripheral portion of the seal ring. 
     Further preferably, the mold release stroke of the screw buckle assembly is formed between the annular wall and the outer edge of the lid, the width of the mold release stroke of the screw buckle assembly is at least 18 mm, and an annular buckle groove that can be fastened with the container cup is formed between the annular rib portion and the outer edge of the lid. 
     Further preferably, the upper part of the sealing ring is provided with a lid ring groove for avoiding the first annular base portion, and the upper part of the sealing ring and the lid ring groove are respectively raised and formed with at least one circle of annular sealing flange. 
     Further preferably, the lower bracket includes an annular connecting portion, a second annular base portion and a third annular base portion respectively formed at an upper end and a lower end of the annular connecting portion and extending in opposite directions to each other, wherein the second annular base portion and the third annular base portion are parallel to each other, and are used to support the sealing ring and the lower end of the annular wall respectively. 
     Further preferably, at least one circle of annular sealing step is formed on the inner protrusion of the sealing ring. 
     Further preferably, a snap structure is further provided between the annular connecting portion and the annular wall, and the snap structure includes at least three buckle slots in an annular array evenly distributed on the outer side of the annular wall, and at least three buckles that are evenly arranged in an annular array on the inner side of the annular connecting portion and are adapted to the buckle slots. 
     Further preferably, the opening end of the container cup is upwardly bent at least once to form at least one inclined surface, and the upper end of the container cup is provided with a cup rim along the horizontal direction. 
     Further preferably, the screw lid screw assembly includes at least one hook-type buckle and at least two screw buckles. The outer side of the cup rim is also protruded with raised structures which can be screwed into the screw buckles in a one-to-one correspondence. 
     Further preferably, a container cup shockproof structure applicable to the kitchen appliance is provided in the kitchen appliance, assembled in the mainframe upper cover of the mainframe, the container cup shockproof structure includes at least three shockproof structures evenly distributed in the mainframe upper cover, and the shockproof structure includes: 
     a shockproof pad structure, including an arch-shaped shockproof pad body and a shockproof pad support rod which are formed integrally, and a limiting step disposed on the shockproof pad support rod; and 
     a shockproof seat structure, integrally formed on an inner surface of the mainframe upper cover and including a shockproof seat body for receiving the arch-shaped shockproof pad body and a limiting hole for inserting the shockproof pad support rod. 
     Further preferably, the mainframe upper cover is a cylindrical groove structure formed by a depression from an upper surface of the mainframe, the mainframe upper cover includes an upper cover side wall in a cylindrical surface form, an upper cover bottom wall closing at a lower part of the upper cover side wall, and a circle of upper cover outer edge formed on an upper edge of the upper cover side wall and extending outwards; 
     the shockproof seat structures are arranged at equal intervals along an outer edge of the upper cover bottom wall, and the shockproof seat body is recessed downward from an upper surface of the upper cover bottom wall, and a shape of the shockproof seat body is adapted to a shape of the arch-shaped shockproof pad body. 
     Further preferably, the upper middle part of the arch-shaped shockproof pad body protrudes upward to form an elastic protrusion, and the lower middle part of the arch-shaped shockproof pad body recesses upward to form a recessed space. The surface of the arch-shaped shockproof pad body is in an arc transition shape. 
     Further preferably, the longitudinal sections of the elastic protrusion and the recessed space are respectively trapezoidal. 
     Further preferably, the shockproof pad support rod is arranged perpendicular to the arch-shaped shockproof pad body and is fixedly connected to the middle of the lower end of the arch-shaped shockproof pad body. 
     Further preferably, the limiting step is a circular truncated structure with a larger upper size and a smaller lower size and extending outward along the radial direction of the shockproof pad support rod, and the limiting step is compressible. 
     Further preferably, the upper edge of the shockproof seat body also extends upward to form a circle of shockproof seat premier. 
     Further preferably, the shockproof structure for the container cup also includes an upper clutch below the container cup assembly, and a lower clutch assembled on the motor shaft of the motor. The upper clutch is a hexagram cylindrical structure, and the upper surface of the lower clutch is recessed from the middle part to form a star-shaped cylindrical slot for the upper clutch to be matched and inserted therein. A hollow washer matched in shape is clamped between the upper clutch and the star-shaped cylindrical slot. 
     The advantages and positive effects of the present disclosure are as follows. 
     1. In the present disclosure, the overflow structure includes a mainframe-upper-cover drainage structure and an interference drainage structure. The two drainage means can both function to effectively prevent the mainframe from flooding in a large area, prevent the motor from soaking in water, and improve safety in use. 
     2. In the present disclosure, the water above the mainframe upper cover can be quickly drained through the side drainage hole and the first water receiving part in order to prevent the mainframe from being flooded in a large area. 
     3. In the present disclosure, by providing a water receiving tray between the mainframe upper cover and the motor, water overflown from the gap between the clutch and the mainframe upper cover can be introduced to an area outside the motor through the water receiving tray and the second water receiving part, to prevent the motor from soaking in water. 
     4. In the present disclosure, there is a drainage gap between the suction disc foot assembly and the via hole for the suction disc foot, so that the water on the base can be drained through the drainage gap, avoiding the problem that the liquid in the base  1  cannot be drained, and preventing water from entering the motor. A variety of drainage means are adopted to improve safety. 
     5. In the present disclosure, the safety link body is also provided with a safety link overflow structure. Water can penetrate from the drainage gap and is guided into the water receiving groove through the water retaining wall at the lower end of the drainage gap. The water collected by the water receiving groove can flow out through the overflow channel and the drainage hole and fall into a drainage gap between the base and the suction cup foot assembly and flow out of the mainframe, preventing the problem that liquid in the safety link body and the base cannot be discharged, preventing water from entering the micro switch. A step-by-step drainage. method is adopted, the structure is simple, the drainage is efficient and practical, and the safety is improved. 
     6. In the present disclosure, the trigger inclined surface and the overflow channel are disposed on two opposite sides of the safety link body respectively, to prevent water from entering the micro switch to cause short circuit, which can improve safety. 
     7. In the present disclosure, the suction cup foot assembly is suspended through the via hole for the suction cup foot. When the cooking machine is stirred at a high speed, the weighing foot via hole shakes around the suction cup foot assembly without touching the suction cup foot assembly, which can buffer part of the vibration, reduce the vibration and displacement of the cooking machine. 
     8. In the present disclosure, the suction cup foot assembly is suspended through the via hole for the suction cup foot. Even if the cooking machine is fully loaded with food in a place where the tabletop is inclined, the suction cup foot assembly cannot touch the via hole for the suction cup foot, which ensures the accuracy of weighing. 
     9. In the present disclosure, the cover opening protection structure includes a hook-type buckle, a handle safety link, a safety link body and a micro switch arranged from top to bottom in space, which constitute a linkage system. The structure is simple, reliable, practical. 
     10. In the present disclosure, the rotation of the screw lid controls the handle safety link and moves the safety link body up and down to trigger the closing and opening of the elastic piece of the micro switch, in order to control the start and stop of other electrical components. The structure is simple, reliable, practical, safe, stable, highly controllable and low in cost, and is suitable for market promotion in the field of kitchen appliances. 
     11. In the present disclosure, in the process the buckle inclined surface rotates with the screw lid clockwise, the buckle inclined surface squeezes the driving inclined surface so that the handle safety link is pressed down as a whole. The structure is simple and is easy for production. 
     12. In the present disclosure, one side of the driving inclined surface is raised with a positioning rib that matches with the positioning slot, the positioning rib and the positioning slot are restricted to each other, which has a positioning function, and the screw lid will not easily loosen when the screw lid is screwed tight. 
     13. In the present disclosure, when the link body moves up and down, the sliding slot can move up and down on the first guiding wheel to have a guiding function and prevent the link body from displacing during the movement. 
     14. In the present disclosure, when the buckle inclined surface is far away from the driving inclined surface, the reset assembly can drive the handle safety link and the mainframe safety link to reset, and then realize the reset of the elastic piece of the micro switch, to prepare for the next operation and facilitate the repeated use of the cover opening protection structure. 
     15. In the present disclosure, the on/off of the motor in the mainframe can be controlled by the on/off of the micro switch, which can meet the safety requirements and greatly reduce the probability of mechanical hazards. 
     16. In the present disclosure, by arranging at least three locking buckle members evenly distributed on the periphery of the mainframe upper cover, the mainframe can hold the container cup assembly securely. With the present disclosure, the container cup assembly can be locked in all directions without concerning the problem that the container cup assembly would come out or shake, which can greatly improve the user experience. 
     17. In the present disclosure, during assembling the container cup assembly, the handle shell is aligned with the avoiding slot and inserted therein. It can have a positioning function, so that the container cup assembly can only be inserted into the mainframe upper cover in one direction. 
     18. In the present disclosure, the locking buckle includes a locking buckle sliding portion, a locking buckle head, a locking buckle boss and a return spring, which can easily implement the locking/unlocking of the container cup assembly, which greatly improves the user experience. 
     19. In the present disclosure, the container cup assembly can be easily unlocked by turning the release lever. The cooperation of the arc-shaped sliding slot, the guiding wheel and the steel ball can make the rotating ring rotate smoothly and stably, and the operation is convenient. 
     20. In the present disclosure, the tension spring pulls the rotating ring tight in a counter direction, preventing the rotating ring from affecting the return spring to push the locking buckle outward, thus allowing the container cup fixing structure suitable for repeated operations. 
     21. In the present disclosure, the sealing structure in the coupler fixing structure can close a gap between the coupler and the cup bottom structure, effectively avoiding the user&#39;s improper operation causing liquid in the cup bottom cover to enter the interior and cause short-circuit damage to electrical components; the connecting structure in the coupler fixing structure can fixedly connect the coupler and the cup bottom structure, the structure is simple and easy to install and disassemble. 
     22. In the present disclosure, the coupler and the cup bottom structure are connected by the coupler fixing structure, the container cup assembly can be soaked in water as a whole or put into the dishwasher as a whole, so that it is easier to clean the food residues in dead corners of the container cup and improve the user experience. 
     23. In the present disclosure, the at least one circle of sealing slot can have a sealing effect between the outer edge of the coupler and the cup bottom cover. The sealing annular slot can have a sealing effect between the periphery of the punch hole and the cup bottom cover. It can effectively avoid the user&#39;s improper operation that might cause liquid to enter the bottom cover and cause short circuit damage to the electrical components. 
     24. In the present disclosure, the positioning structure in the coupler fixing structure has a positioning and assembling effect, to prevent the coupler from being displaced on the cup bottom cover. 
     25. In the present disclosure, the upper bracket can limit everting of the upper part of the sealing ring, the lower bracket can compress the sealing ring and limit displacement of the sealing ring, which is convenient to assemble and disassemble. The removable upper bracket not only can ensure a sufficient length of the release stroke for the screw buckle assembly, allow the screw buckle assembly of the screw lid to be released from the mold, but also can withstand the sealing ring to prevent everting. The structure is simple and has strong practicability. 
     26. In the present disclosure, the R angle sealing portion is arranged on the outer edge of the free end of the outer flange and is in close contact with the sealing surface of the container cup, which greatly improves the sealing effect. In addition, the everting flange of the sealing ring fits to the container cup tighter when subject to impulsive force and pressure of stirring liquid, having a further sealing effect. 
     27. In the present disclosure, the parting line position is arranged on the inner edge of the free end of the flange. Even if there is a glitch at this position, since it does not contact the sealing surface of the container cup, there is no need to worry about the sealing problem. 
     28. In the present disclosure, the annular sealing flange and the annular sealing step can have a sealing effect, to prevent debris from entering the gap between the sealing ring and the upper bracket, the screw lid and the annular wall, and also facilitates subsequent cleaning. 
     29. In the present disclosure, the lower bracket  68  and the annular wall  65  connected by the snap structure have a simple, practical and aesthetic structure, improve the assembly efficiency and assembly effect between the lower bracket  68  and the annular wall  65 , and are easy to assemble, which is convenient for users to disassemble and install by themselves and thoroughly clean all parts. 
     30. In the present disclosure, the inclined surface is arranged so that the contact area and the amount of interference between the sealing ring and the annular inclined surface of the container cup are very small, which can reduce the interference stroke between the sealing ring and the container cup when installing. The friction between the sealing ring and the container cup is very small, which is conducive to the easy tightening of the screw lid. 
     31. In the present disclosure, the screw lid sealing structure further includes a screw lid and screw buckle assembly, through which the screw lid can be locked or unlocked to the container cup, and the operation is convenient and the practicability is high. 
     32. In the present disclosure, the screw lid screw assembly includes at least one hook-type buckle and at least two screw buckles. When the screw lid is installed on the container cup, the raised structures are screwed into the screw buckles on the screw lid, and the hook-type buckle partially enters the opening of the handle shell, to realize double locking. 
     33. In the present disclosure, the shockproof seat structure can limit the displacement of the shockproof pad structure in the vertical and horizontal direction, which can improve the assembly stability of the shockproof pad structure. 
     34. In the present disclosure, a plurality of arch-shaped shockproof pad bodies made of soft rubber are provided between the mainframe cover and the container cup assembly, to avoid direct contact between hard rubbers, having a cushioning and shock-absorbing effect. The noise and vibration of the whole machine can be greatly reduced, providing a better user experience. 
     35. In the present disclosure, the arch-shaped shockproof pad body is designed in an arch shape, it can bear weight and undergo certain elastic deformation, and can effectively reduce vibration. The elastic protrusion can be both pressed and rebounded, the recessed space not only can provide more deformation space for the elastic protrusion, but also can help the subsequent reset and rebound of the elastic protrusion, which can greatly improve the effect of buffering and shock absorption. 
     36. In the present disclosure, the shockproof structure for the container cup also includes an upper clutch of a hexagram cylindrical structure, a star-shaped cylindrical slot, a hollow washer, so that the power transmission connection between the upper and lower clutches has a soft rubber buffer, which can cooperate with the shockproof pad structure and the shockproof seat structure, and can further greatly reduce the noise and vibration of the whole machine during high-speed stirring, and provide a better user experience. 
     37. In the present disclosure, the star-shaped cylindrical slot is arranged in hexagram cylindrical structure. When being injection molded, the lower clutch can be designed with three equally spaced glue feeding points for injection molding, so that the size is stable and the concentricity is high during injection molding, which can further effectively reduce the vibration and noise generated by the blade holder. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The technical solutions of the present disclosure will be further described in detail below with reference to the drawings and embodiments. However, it should be understood that these drawings are only designed for explanatory purposes, and therefore are not intended to limit the scope of the present disclosure. In addition, unless otherwise specified, these drawings are only intended to conceptually illustrate the structure described herein and are not necessarily drawn to scale. 
         FIG.  1    is a schematic cross-sectional view of a mainframe according to the present disclosure; 
         FIG.  2    is a schematic enlarged view of part A in  FIG.  1   ; 
         FIG.  3    is a schematic exploded view of  FIG.  1   ; 
         FIG.  4    is a schematic structural diagram of a water receiving tray; 
         FIG.  5    is a schematic cross-sectional view of a kitchen appliance; 
         FIG.  6    is a schematic enlarged view of part B in  FIG.  5   ; 
         FIG.  7    is a schematic structural diagram of a base; 
         FIG.  8    is a schematic exploded view of the present disclosure; 
         FIG.  9    is a schematic enlarged view of part A in  FIG.  8   ; 
         FIG.  10    is a schematic cross-sectional view of the present disclosure; 
         FIG.  11    is a schematic enlarged view of part B in  FIG.  10   ; 
         FIG.  12    is a schematic stereoscopic view of a safety link body; 
         FIG.  13    is a schematic cross-sectional view of the safety link body; 
         FIG.  14    is a schematic stereoscopic view of the safety link body from another view angle; 
         FIG.  15    is a schematic cross-sectional view of the present disclosure; 
         FIG.  16    is a schematic structural diagram of the base; 
         FIG.  17    is a schematic exploded view of the kitchen appliance; 
         FIG.  18    is a schematic exploded view of a cover opening protection structure; 
         FIG.  19    is a schematic structural diagram of a handle safety link; 
         FIG.  20    is a front cross-sectional view of the kitchen appliance; 
         FIG.  21    is a side cross-sectional view of the kitchen appliance; 
         FIG.  22    is a schematic enlarged view of part A in  FIG.  21   ; 
         FIG.  23    is a schematic stereoscopic view of a screw lid; 
         FIG.  24    is a control circuit diagram of a motor; 
         FIG.  25    is a schematic cross-sectional view of a stir-frying machine; 
         FIG.  26    is a schematic exploded view of the stir-frying machine; 
         FIG.  27    is a schematic structural diagram of a mainframe upper cover; 
         FIG.  28    is a schematic structural diagram of  FIG.  27    from another view angle; 
         FIG.  29    is a schematic structural diagram of a locking buckle member and a rotating ring in an assembled state; 
         FIG.  30    is a schematic enlarged view of part A in  FIG.  29   ; 
         FIG.  31    is a schematic structural diagram of  FIG.  29    from another view angle; 
         FIG.  32    is a schematic cross-sectional view of the mainframe upper cover; 
         FIG.  33    is a schematic exploded view of a container cup assembly; 
         FIG.  34    is a schematic structural diagram of the container cup assembly in a state that a coupler and a cup bottom cover are assembled; 
         FIG.  35    is a schematic structural diagram of a state that the coupler and the cup bottom cover are assembled; 
         FIG.  36    is a schematic structural diagram of the coupler; 
         FIG.  37    is a schematic structural diagram of the cup bottom cover; 
         FIG.  38    is a schematic structural diagram of a screw lid in the prior art; 
         FIG.  39    is a schematic structural diagram of a state that the screw lid and the container cup are assembled; 
         FIG.  40    is a schematic enlarged view of part A in  FIG.  39   ; 
         FIG.  41    is a schematic exploded view of the screw lid; 
         FIG.  42    is a schematic cross-sectional view of a sealing ring; 
         FIG.  43    is a schematic stereoscopic view of the screw lid; 
         FIG.  44    is a schematic top view of  FIG.  43   ; 
         FIG.  45    is a schematic top view of the container cup; 
         FIG.  46    is a schematic half sectional view of the structure of the present disclosure; 
         FIG.  47    is a schematic enlarged view of part A in  FIG.  46   ; 
         FIG.  48    is a schematic stereoscopic view of the mainframe; 
         FIG.  49    is a schematic enlarged view of part B in  FIG.  48   ; 
         FIG.  50    is a schematic front view of a shockproof pad structure; 
         FIG.  51    is a schematic exploded view of a hollow washer and a lower clutch. 
     
    
    
     DETAILED DESCRIPTION 
     First, it should be noted that the specific structure, features, and advantages of the present disclosure will be described in detail below by way of examples. However, all the descriptions are only for illustration and should not be construed as limiting the present disclosure. In addition, any single technical feature described or implied in each embodiment mentioned herein, or any single technical feature displayed or implied in each drawing, can still be combined or deleted among these technical features (or their equivalents), in order to obtain more other embodiments of the present disclosure that may not be explicitly mentioned in this document. In addition, for the sake of brevity of the drawings, the same or similar technical features may only be labeled in one place in the same drawing. 
     In the present disclosure, unless otherwise clearly defined and limited, the terms “installation”, “setting”, “connecting”, “fixing”, “spinning” and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachably connection or an integrated connection; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or interaction between two components. Unless specifically defined otherwise, those of ordinary skill in the art can understand the specific meanings of the above terms in the present disclosure according to specific circumstances. Hereinafter, the present disclosure will be described in detail with reference to  FIGS.  1  to  7   . 
     Example 1 
     As shown in  FIGS.  1  to  4   , a kitchen appliance includes an overflow structure disposed in a mainframe of the kitchen appliance in which a motor  1  is assembled. A mainframe upper cover  2  is disposed above the motor  1 , and the mainframe upper cover  2  is connected to the mainframe as a whole piece and is used to place a container cup assembly. The shaft of the motor  1  is connected to a clutch assembly  3  for power transmission. A base  4  is installed at the lower end of the mainframe. The overflow structure includes: a mainframe-upper-cover drainage structure including at least one side drainage hole  5  opened at the edge of the mainframe upper cover  2 , and a first water receiving part for transferring liquid in the side drainage hole  5 ; an interference drainage structure including a water receiving tray  6  for receiving liquid overflowing from the gap between the clutch assembly  3  and the mainframe upper cover  2 , and a second water receiving component for transferring liquid in the water receiving tray  6 . 
     Structure and Operation. In this technical solution, when a user accidentally pours water into the mainframe upper cover or forgets to install the blade holder into the container cup assembly before pouring water therein, it tends to cause a large area of the mainframe housing to soak in water, and the accumulated water will pass through the gap between the clutch assembly  3  and the mainframe upper cover  2 , entering the motor  1  and causing the motor  1  to fail or other safety problems. In this example, an overflow structure is disposed inside the mainframe. The overflow structure includes a mainframe-upper-cover drainage structure and an interference drainage structure. The two drainage means can both function to effectively prevent the mainframe from flooding in a large area. Wherein the mainframe-upper-cover drainage structure includes at least one side drainage hole  5  opened at the edge of the mainframe upper cover  2 , and a first water receiving part for transferring liquid in the side drainage hole  5 , so that the water above the mainframe upper cover  2  can be quickly drained through the side drainage hole  5  and the first water receiving part in order to prevent the mainframe from being flooded in a large area. The interference drainage structure includes a water receiving tray  6  for receiving liquid overflow from the gap between the clutch assembly  3  and the mainframe upper cover  2  and a second water receiving part used to transfer the liquid in the water receiving tray  6 . When the water accumulates above the mainframe upper cover  2 , the water inevitably overflows from the gap between the clutch assembly  3  and the mainframe upper cover  2  to the motor  1 . It tends to cause water to enter the motor  1 . By providing a water receiving tray  6  between the mainframe upper cover  2  and the motor  1 , water can be introduced to an area outside the motor through the second water receiving part to prevent the motor  1  from soaking in water. 
     Furthermore, in this example, it can also be contemplated that the first water receiving part includes a base drainage pipe  7  vertically installed on the base  4 , and a water receiving pipe  8  inserted into the upper end of the base drainage pipe  7 . The lower end of the side drainage hole  5  is tightly connected with the opening end of the water receiving pipe  8  through a transfer structure  9 . The base drainage pipe  7  penetrates the base  4 . The water discharged through the side drainage hole  5  is discharged from the base through the transfer structure  9 , the water receiving pipe  8 , and the base drainage pipe  7  in sequence, so that the water above the mainframe upper cover  2  can be quickly drained, to prevent the mainframe from flooding in a large area. 
     Furthermore, in this example, it can also be contemplated that, as shown in  FIGS.  2 - 3   , the transfer structure  9  may include an inclined transfer bottom surface  901  formed by bending at least once along one side edge of the side drainage hole  5 , and a connecting surface  902  connected between the transfer bottom surface  901  and other edge of the drainage hole  5 . The opening end of the transfer structure  9  faces the water receiving pipe  8 . The transfer bottom surface  901  is inclined, so that the water above the mainframe upper cover  2  can quickly flow into the water receiving pipe  8 . The opening end of the water receiving pipe  8  faces the transfer structure  9  and closely connected to the opening end of the transfer structure  9 , in order to prevent leakage of water flowing from the transfer structure  9 . 
     Furthermore, in this example, it can also be contemplated that the water receiving tray  6  includes a receiving tray surface  601  and a tray wall  602  extending upward along the edge of the receiving tray surface  601 . One side of the tray wall  602  is formed with a water receiving notch  603 , and a water guiding lip  604  extends downward from the edge of the receiving tray surface  601  below the water receiving notch  603 . The liquid overflowing from the gap between the clutch assembly  3  and the mainframe upper cover  2  falls onto the receiving tray surface  601  under the action of gravity, flows down to the second water receiving part through the water receiving notch  603 , and is drained through the second water receiving part, in order to prevent water from entering the motor, wherein the edge of the receiving tray surface  601  under the water receiving notch  603  extends downward with the water guiding lip  604  which functions to guide water flow. 
     Furthermore, in this example, it can also be contemplated that the receiving tray surface  601  includes a circular receiving surface, an extension surface extending toward one side along the receiving surface. The water receiving notch  603  is disposed at one side of the extension surface away from the receiving surface. 
     Furthermore, in this example, it can also be contemplated that the receiving tray surface  601  is provided with a first motor hole for the motor shaft to extend therethrough, and a first water retaining wall  605  extends upward from the edge of the first motor hole. The center of the motor hole coincides with the center of the receiving surface. The first water retaining wall  605  can prevent the water on the receiving tray surface  601  from flowing to the motor  1  through the first motor hole. 
     Furthermore, in this example, it can also be contemplated that the second water receiving part includes a base drainage pipe  7  vertically installed on the base  4 , and the water guiding lip  604  is disposed right above the base drainage pipe  7  in the second water receiving part. 
     Furthermore, in this example, it can also be contemplated that on the mainframe upper cover  2 , there is provided a second motor hole for partially inserting the clutch assembly  3 , and a circle of second water retaining wall  201  is formed by extending upward from the edge of the second motor hole. The second water retaining wall  201  can prevent water on the mainframe upper cover  2  from flowing down through the second motor hole. 
     Furthermore, in this example, it can also be contemplated that the lower part of the clutch assembly  3  is formed with at least two coaxially arranged water retaining walls  301 , and the lower end of the outer water retaining wall  301  is higher than the lower end of the inner water retaining wall  301 . 
     Furthermore, in this example, it can also be contemplated that, as shown in  FIGS.  1 - 2   , the first water retaining wall and the second water retaining wall  201  respectively extend into separate water retaining walls  301 , which can elongate the route passing by the liquid flowing down from the gap between the clutch assembly  3  and the mainframe upper cover  2  as possible as it could be, reduce the amount of overflowing water as possible as it could be, and lower the burden of the water receiving tray  6 . A gap D 1  is provided between the second water retaining wall  201  and the clutch assembly  3 , which can prevent overflow without hindering the rotation of the clutch assembly  3  above the second water retaining wall  201 . 
     Furthermore, in this example, it can also be contemplated that, also, from the outer circumference of the second motor hole, at least one circle of water retaining walls  301  extends downward. 
     Example 2 
     As shown in  FIGS.  5 - 7   , Example 2 of the present disclosure is further improved on basis of the Example 1, in order to fully exhibit the technical advantages of the present disclosure, which will be exemplified below. 
     For example, each corner end of the base  1  is provided with an installation position  11  for assembling a suction disc foot assembly  10 . The installation position  11  includes a via hole  1101  for the suction disc foot and screw posts  1102  respectively fixed to the periphery of the via hole  1101  for the suction disc foot, the via hole  1101  penetrating the base  4  and for the suction disc foot assembly  10  to pass through. The upper end of the suction disc foot assembly  10  and the screw posts  1102  are connected by a self-tapping screw  12 . When the mainframe is placed on the top of a table, the air under the suction disc foot assembly  10  is pressed out, causing the air pressure inside the suction disc foot to be lower than the air pressure outside the suction disc foot, and the suction disc foot is less likely to be pulled up, which reduces the vibration and displacement of the machine, and improve the stability of the machine. There is a drainage gap D 2  between the suction disc foot assembly  10  and the via hole  1101  for the suction disc foot. The suction disc foot assembly  10  plays the role of supporting and shock absorption. There is a drainage gap between the suction disc foot assembly  10  and the via hole  1101  for the suction disc foot, so that the water on the base can be drained through the drainage gap, avoiding the problem that the liquid in the base  1  cannot be drained, and preventing water from entering the motor. A variety of drainage means are adopted to improve safety. 
     In sum, the present disclosure provides an overflow structure applied to a kitchen appliance, which adopts a variety of drainage means to improve safety in use. 
     Example 3 
     The technical solution provided by the example of the present disclosure relates to a safety link overflow structure applicable to a kitchen appliance and utensils, which pertains to the field of kitchen appliances. Taking a stir-frying machine as an example, as shown in  FIGS.  8 - 16   , a kitchen appliance or utensil includes a safety link overflow structure. The safety link overflow structure is disposed inside a safety link body  13 . The safety link body  13  is assembled inside the mainframe  14 . The lower end of the mainframe  14  is provided with a base  4 . The safety link overflow structure includes: a water receiving groove  16  formed as a recess from the upper part of the safety link body  13 , having a semi-closed bottom and disposed under a drainage slit  17 , downward from the lower end of the drainage slit  17  formed a circle of water retaining wall  18 ; a drainage hole  19  disposed at the lower part of the safety link body  13  and communicated with the water receiving groove  16  through an overflow channel  20 ; and a drainage gap  21  disposed on the base  4 . 
     Structure and Operation. In this technical solution, the safety link body  13  is used as a safety interlocked structure. When the container cup assembly is properly assembled on the mainframe upper cover  2 , a driving rod on the container cup assembly presses down the safety link body  13 , and then presses an elastic piece of a micro switch down to the lower limit to trigger the micro switch to form a closed circuit. When the elastic piece of the micro switch is pressed down to trigger close the circuit, a signal current that controls other electrical components is then turned on, and the electrical components start to work; otherwise, when the container cup assembly is removed, the safety link body  13  is reset, the elastic safety link body  13  of the micro switch returns to a free state, and the micro switch opens the closed circuit. At that time, the signal current that controls the activation of other electrical components is turned off, and the electrical components stop working. The structure is simple, reliable and practical, safe, stable and highly controllable. The safety link body  13  is also provided with a safety link overflow structure. The safety link overflow structure includes a water receiving groove  16 , a drainage hole  19 , an overflow channel  20 , and a drainage gap  21 . Water can penetrate from the drainage gap  17  and is guided into the water receiving groove  16  through the water retaining wall  18  at the lower end of the drainage gap  17 . The bottom of the water receiving groove  16  is semi-closed, and the water collected by the water receiving groove  16  can flow out through the overflow channel  20  and the drainage hole  19  and fall into a drainage gap  21  between the base  4  and the suction cup foot assembly  10  and flow out of the mainframe. Then, all the water overflowing from the drainage gap  17  can be discharged out of the mainframe, preventing the problem that liquid in the safety link body  13  and the base  4  cannot be discharged, preventing water from entering the micro switch. A step-by-step drainage. method is adopted, the structure is simple, the drainage is efficient and practical, and the safety is improved. 
     Furthermore, in this example, it can also be contemplated that an upper trigger lever  22  and a lower trigger lever  23  are vertically formed on the upper and lower parts of the safety link body  13  respectively. A trigger inclined surface  24  for triggering on/off of the micro switch is formed on one side of the safety link body  13 . By depressing the upper trigger lever  22 , the safety link body  13  can be driven downward, and the trigger inclined surface  24  then presses down the elastic piece of the micro switch, so that the trigger micro switch forms a closed circuit. 
     Furthermore, in this example, it can also be contemplated that the trigger inclined surface  24  and the overflow channel  20  are disposed on two opposite sides of the safety link body  13  respectively. The overflow channel and the micro switch are separated by the trigger inclined surface to prevent water from entering the micro switch. 
     Furthermore, in this example, it can also be contemplated that the drainage hole  19  is provided at least one pair of them, which are disposed on two opposite sides of the lower part of the overflow channel  20 . The lower opening end of the water receiving groove  16  correspond to the overflow channel  20  and the drainage holes  19  up and down, and the plane where the drainage hole  19  is located is perpendicular to the plane where the trigger inclined surface  24  is located. As shown in  FIG.  13   , the overflow channel  20  and the trigger inclined surface  24  I are disposed on the left and right sides of the safety link body  13  respectively, and the two drainage holes  19  are disposed on the front and back sides of the safety link body  13  respectively, so that the discharging action and the triggering action can be separated, in order to prevent water from entering the micro switch. 
     Furthermore, in this example, it can also be contemplated that the upper surface of the mainframe  14  is recessed downward to form the mainframe upper cover  2  for the container cup assembly to be assembled thereon. An avoiding hollow cylinder  25  is provided on the mainframe upper cover  2  for the upper trigger lever  22  to pass upward therethrough. The drainage slit  17  is disposed between the avoiding hollow cylinder  25  and the upper trigger lever  22 . The upper trigger lever  22  extends upward passing through the avoiding hollow cylinder  25 . When the container cup assembly is properly assembled on the mainframe upper cover  2 , the driving rod on the container cup assembly presses down the upper trigger lever  22 , and then triggers the micro switch to close the circuit. If there is water on the mainframe upper cover, the water can flow from the drainage slit  17  to the water receiving groove  16 . The bottom of the water receiving groove  16  is semi-closed, and the water collected by the water receiving groove  16  can flow through the overflow channel  20  and the drainage hole  19  and fall into the drainage gap  21  between the base  4  and the suction cup foot assembly  10 , and flow out of the mainframe. 
     Furthermore, in this example, it can also be contemplated that the plane where the lower end of the water retaining wall  18  is located is flush with the plane where the upper end of the water receiving groove  16  is located or is located below the plane where the upper end of the water receiving groove  16  is located. The water retaining wall  18  plays a guiding role, which helps to guide all the water in the drainage slit  17  into the water receiving groove  16  and prevents water from entering other electrical components. 
     Furthermore, in this example, it can also be contemplated that the safety link body  13  and the micro switch  30  are respectively disposed inside a micro switch bracket  26 . A slot  27  is opened on the upper part of the micro switch bracket  26  for the safety link body  13  to inset thereinto, and a first via hole  28  is opened on the lower part of the micro switch bracket  26  for the lower trigger lever  23  to freely extend therethrough. A compression spring assembly  29  is sleeved on the lower trigger lever  23  between the safety link body  13  and the first via hole  28 . When the container cup assembly is removed, under the action of the elastic force of the compression spring assembly  29 , the safety link body  13  is reset, and the elastic piece of the micro switch returns to a free state. 
     Furthermore, in this example, it can also be contemplated that the micro switch  30  is fixed in the micro switch bracket  26 , and the elastic piece of the micro switch  30  is arranged facing the trigger inclined surface  24  of the safety link body  13  of the mainframe. 
     Furthermore, in this example, it can also be contemplated that a water retaining plate  31  is also provided inside the micro switch bracket  26  and formed at a lower position between the safety link body  13  and the micro switch  30 . The water discharged from the drain hole  19  continues to flow down through the first via hole  28  and the front and rear of the micro switch bracket  26  until it flows out of the mainframe through the drain gap  21 . The water blocking plate  31  can block the water from flowing in the direction of the micro switch and the motor. 
     Furthermore, in this example, it can also be contemplated that each corner end of the base  4  is provided with an installation position for assembling the suction disc foot assembly  10 . The installation position includes a via hole  1101  for the suction disc foot, the via hole  1101  penetrating the base  4  and for the suction disc foot assembly  10  suspended and inserted through the via hole  1101 ; and screw posts  1102  respectively fixed to the periphery of the via holes  1101  for the suction disc feet. The drainage gap  21  is disposed between the suction disc foot assembly  10  and the via hole  1101  for the suction disc foot. 
     Example 4 
     As shown  FIGS.  15 - 16   , the upper end of the suction disc foot assembly  10  is connected to the screw post by a self-tapping screw. When the mainframe is placed on the desktop, the air in the suction cup foot at the lower end of the suction cup foot assembly  10  is squeezed out, so that the air pressure inside the suction cup foot is lower than the air pressure outside the suction cup foot, and the suction cup foot is less likely to be pulled up, which can reduce the vibration and displacement of the machine, increasing the stability of the machine. In addition, the suction cup foot assembly  10  is suspended through the via hole  1101  for the suction cup foot. First, when the cooking machine is stirred at a high speed, the via hole  1101  for the suction cup foot shakes around the suction cup foot assembly  10  without touching the suction cup foot assembly  10 , which can buffer part of the vibration, reduce the vibration and displacement of the cooking machine. Secondly, the suction cup foot assembly  10  is provided with a load cell for weighing, and the structure and operation of the load cell is as described in the published patent CN201820306027.7 “weighing assembly structure for induction cooker”, which will not be described in detail here. The suction cup foot assembly  10  is suspended through the via hole  1101  for the suction cup foot, even if the cooking machine is fully loaded with food in a place where the tabletop is inclined, the suction cup foot assembly  10  cannot touch the via hole  1101  for the suction cup foot, which ensures the accuracy of weighing. Moreover, there is a drainage gap  21  between the suction cup foot assembly  10  and the via hole  1101  for the suction cup foot, so that the water on the base  4  can be drained through the drainage gap, preventing the problem that liquid in the base  4  cannot be discharged and preventing the water from entering the electrical components. A step-by-step drainage method is adopted, which can improve safety. 
     In sum, the present disclosure provides a safety link overflow structure applicable to a kitchen appliance, which adopts a step-by-step drainage method, has a simple structure, the efficient and practical drainage and improved safety. 
     The technical solution provided by the example of the present disclosure relates to a cover opening protection structure applicable to a kitchen appliance and pertains to the field of kitchen appliances. Taking a stir-frying machine as an example, in the related art, at present, fora stir-frying machine products available in the market, the cover opening protection structure is complex and unstable. Some adopt photoelectric cover opening protection, but the photoelectric cover opening protection is unstable in the case of poor light, which has a potential danger. Some also adopt current microswitch detection using electric lock locking cup cover, which is too expensive. In view of this, the cover opening protection structure applicable to a kitchen appliance provided by the technical solution of the present disclosure is simple, reliable, practical, safe, stable, highly controllable, low in cost, and is suitable for market promotion in the field of kitchen appliances. 
       FIGS.  17 - 24    illustratively shows the structural schematic diagrams of the cover opening protection structure applicable to a kitchen appliance provided by the technical solutions disclosed in the present disclosure. 
     Example 5 
     A cover opening protection structure applicable to a kitchen appliance is assembled inside the kitchen appliance. The kitchen appliance includes a mainframe  14 , a container cup  15  assembled on the mainframe  14 , a screw lid  32  snapped on the container cup  15 , a handle shell  36  fixedly connected to one side of the container cup  15 , a screw handle  33  provided on the screw lid  32 . The cover opening protection structure includes a handle safety link  34  which can move up and down inside the handle shell  36 . The handle safety link  34  includes: a link body  3401 ; a driving inclined surface  3402  and a driving rod  3403  respectively provided on an upper part and a lower part of the link body  3401 ; a hook-type buckle  35  fixedly connected to the lower end of the screw lid  32 , and having a buckle inclined surface  3501  formed at the lower part thereof for driving the handle safety link  34  to move up and down; a micro switch  30  assembled inside the mainframe, and the driving rod  3403  driving the elastic piece  3001  of the micro switch  30  to be pressed down/bounced up through the safety link body  13 . 
     The kitchen appliance includes a container cup assembly  37 , and the container cup assembly  37  includes a container cup  15 . 
     Structure and Operation. In the technical solution, as shown in  FIGS.  17 - 18   , the cover opening protection structure includes a hook-type buckle  35 , a handle safety link  34 , a safety link body  13  and a micro switch  30  arranged from top to bottom in space, which constitute a linkage system. The hook-type buckle  35  is fixedly connected to the lower end of the screw lid  32  and moves with the rotation of the screw lid. The handle safety link  34  is installed inside the handle shell  36  and can move up and down inside the handle shell  36 . The driving rod  3403  thereof protrudes out of the handle shell  36 . The micro switch  30  is assembled inside the mainframe  14 . When the screw lid  32  is screwed in place clockwise, the buckle inclined surface  3501  of the hook-type buckle  35  squeezes the driving inclined surface  3402  so that the handle safety link  34  is pressed down as a whole, and at the same time, the handle safety link  34  pushes the safety link body  13  down, and at the same time, the safety link body  13  presses the elastic piece  3001  of the micro switch  30  down to the limit to trigger the micro switch  30  to form a closed circuit, the signal current that controls other electrical components is then turned on, and the electrical components start to work. On the other hand, when the screw lid  32  is unscrewed counterclockwise, the handle safety link  34  is reset when the buckle inclined surface  3501  of the hook-type buckle  35  is withdrawn, and at the same time the safety link body  13  is also reset, and the elastic piece  3001  of the micro switch  30  is restored to the free state. The micro switch  30  forms an open circuit. At that time, the signal current that controls the activation of other electrical components is turned off, and the electrical components stop working. 
     In this solution, the rotation of the screw lid  32  controls the handle safety link  34  and moves the safety link body  13  up and down to trigger the closing and opening of the elastic piece of the micro switch  30 , in order to control the start and stop of other electrical components. The structure is simple, reliable, practical, safe, stable, highly controllable and low in cost, and is suitable for market promotion in the field of kitchen appliances. 
     It should be noted that the other electrical components mentioned above can be, but are not limited to, motors, and the on/off of the micro switch  30  can control the on/off of the signal current of the electrical component, and then control the on/off of the electrical component. 
     Furthermore, in this example, it can also be contemplated that the hook-type buckle  35  includes a support portion  3502  and a trigger portion  3503  which are connected as one body. The support portion  3502  is vertically fixed to the lower surface of the screw lid  32 , and the buckle inclined surface  3501  is formed at the lower part of the trigger portion  3503 . One side of the buckle inclined surface  3501  is recessed to form a positioning slot  3504 . When the screw lid  32  is screwed in place clockwise, the trigger portion  3503  of the hook-type buckle  35  enters the handle shell, and the buckle inclined surface  3501  squeezes the driving inclined surface  3402  so that the handle safety link  34  is pressed down as a whole. 
     Furthermore, in this example, it can also be contemplated that the handle shell  36  includes a handle seat  3601  and a handle cover  3602  assembled on the handle seat  3601 . Preferably, the handle seat  3601  is installed on the outer side of the container cup  15  along the length direction of the container cup  15 . The handle seat  3601  is provided with a hollow working groove along its length direction, and the handle safety link  34  is disposed in the hollow working groove and can move up and down inside the hollow working groove. The upper part of the handle seat  3601  is provided with an opening  3603  for the trigger portion  3503  to enter therethrough, and the lower part of the handle seat  3601  is provided with a second via hole for the driving rod  3403  to freely extend therethrough. When the screw lid  32  is screwed in place clockwise, the trigger portion  3503  of the hook-type buckle  35  enters the hollow working groove through the opening  3603 , and the buckle inclined surface  3501  presses the driving inclined surface  3402 , so that the handle safety link  34  is pressed down as a whole. The driving rod  3403  moves down along the second via hole along with the handle safety link  34  and further extends beyond the handle seat  3601 . 
     Furthermore, in this example, it can also be contemplated that one side of the driving inclined surface  3402  is raised with a positioning rib  3404  that matches with the positioning slot  3504 . When the buckle inclined surface  3501  presses the driving inclined surface  3402 , the driving inclined surface  3402  moves downwards until the positioning rib  3404  is just stuck in the positioning slot  3504 , and the positioning rib  3404  and the positioning slot  3504  are restricted to each other, which has a positioning function, and the screw lid  32  will not easily loosen when the screw lid  32  is screwed tight. 
     Furthermore, in this example, it can also be contemplated that at least two sliding slots  3405  are formed on the link body  3401  along its length direction, and a first guiding wheel  3406  is engaged in the sliding slot  3405 . The first guiding wheel  3406  is slidably connected with the sliding slot  3405 , and the first guiding wheel  3406  is fixedly connected to the container cup  15 /the handle seat  3601 . When the link body  3401  moves up and down, the sliding slot  3405  can move up and down on the first guiding wheel  3406  to have a guiding function and prevent the link body  3401  from displacing during the movement. 
     Furthermore, in this example, it can also be contemplated that a micro switch bracket  26  is also installed in the mainframe  14 , and the mainframe safety link  13  and the micro switch  30  are respectively disposed in the micro switch bracket  26 . As shown in  FIG.  22   , the micro switch bracket  26  is used for positioning/fixing the positions of the mainframe safety link  13  and the micro switch  30 . 
     Furthermore, in this example, it can also be contemplated that the safety link body  13  has a side facing the micro switch  30  which forms a trigger inclined surface  24 , and the upper and lower parts of the safety link body  13  are vertically connected to an upper trigger lever  22  and a lower trigger lever  23  respectively. The upper trigger lever  22  abuts against the driving rod  3403  above the upper trigger lever  22 . When the assembling is completed, the safety link body  13  and the micro switch  30  are located in the micro switch bracket  26 , and the safety link body  13  can move up and down in the safety link body  13 . When the handle safety link  34  pushes down the upper trigger level  22  through the driving rod  3403 , the safety link body  13  is pushed down accordingly, and the trigger inclined surface  24  of the safety link body  13  presses the elastic piece  3001  of the micro switch  30  down to the lower limit to trigger the micro switch  30  to form a closed circuit. On the other hand, when the handle safety link  34  is reset, the safety link body  13  is reset along with it, and the elastic piece of the micro switch returns to the free state. The operation is convenient. 
     Furthermore, in this example, it can also be contemplated that the upper part of the micro switch bracket  26  is provided with a slot  27  for inserting the safety link body  13 , and the lower part thereof is provided with a first via hole  28  for the lower trigger lever  23  to extend out of there freely. The shape of the slot  27  is adapted to the shape of the safety link body  13  to prevent displacement and tipping. 
     Furthermore, in this example, it can also be contemplated that the micro switch  30  is fixed inside the micro switch bracket  26  by screws, and the elastic piece  3001  of the micro switch  30  is disposed facing the trigger inclined surface of the safety link body  13 . 
     Furthermore, in this example, it can also be contemplated that it also includes a reset assembly, which includes an upper compression spring  2901  and a lower compression spring  2902  respectively sleeved on the driving rod  3403  and the lower trigger level  23 . The upper compression spring  2901  is disposed between the link body  3401  and the second via hole, the lower compression spring  2902  is disposed between the safety link body  13  and the first via hole  28 . When the screw lid  32  is rotated counterclockwise and released, when the hook-type buckle  35  is withdrawn from the b buckle inclined surface  3501 , under the action of the elastic force of the upper compression spring  2901 , the handle safety link  34  is reset, and at the same time, under the action of the elastic force of the lower compression spring  2902 , the safety link body  13  is also reset, and the elastic piece  3001  of the micro switch  30  is restored to a free state at that time. 
     Example 6 
     Example 6 of the present disclosure is further improved on basis of the Example 5, in order to fully exhibit the technical advantages of the present disclosure, which will be exemplified below. 
     For example, the micro switch  30  is disposed in the control circuit of the motor, and the on/off of the signal current of the motor in the mainframe  14  can be controlled by the on/off of the micro switch  30 , and then the on/off of the motor can be controlled. 
     Structure and Operation. When the screw lid  32  is screwed clockwise into place, the buckle inclined surface  3501  of the hook-type buckle  35  presses the driving inclined surface  3402  to drive the handle safety link  34  down as a whole, and at the same time, the handle safety link  34  presses down the safety link body  13 , and thus the safety link body  13  presses down the elastic piece  3001  of the micro switch  30  to the lower limit to trigger the micro switch  30  to form a closed circuit. At that time, the signal current that controls the start of the motor is turned on, and the motor starts to work. That is, the motor can start to work only upon detection that the screw lid  32  is screwed tightly on the container cup  15 , which can meet the safety requirements and greatly reduce the probability of mechanical hazards. On the contrary, when the screw lid  32  is unscrewed counterclockwise, the handle safety link  34  is reset when the buckle inclined surface  3501  of the hook-type buckle  35  is withdrawn, and at the same time the safety link body  13  is also reset. At that time, the elastic piece  3001  of the micro switch  30  returns to the free state, and the micro switch  30  forms an open circuit. Then, the signal current that controls the start of the motor is turned off, and the motor stops working. That is, when the screw lid  32  is opened, the signal current that controls the start of the motor is turned off, which is safe and reliable, and greatly reduces the probability of mechanical danger. 
     The control operation. When the elastic piece of the micro switch  30  is pressed and triggered to form a closed circuit, the signal current that controls the motor to start is turned on, and the motor starts to work. When the elastic piece of the micro switch  30  is free to rebound and open to form an open circuit, the signal current that controls the motor is turned off, and the motor stops working. Through the screwing tight and loose of the screw lid  32 , the handle safety link  34  is controlled to link to the safety link body  13  to move up and down, to trigger the closing of the elastic piece of the micro switch  30  to control the start and stop of the motor. 
     It should be noted that the specific structures, operation, and circuit structures of the motors, micro switches, and other electrical components used in the present disclosure are all known in the prior art, and therefore will not be described in detail. 
     To sum up, the present disclosure provides a cover opening protection structure with a simple, reliable and practical structure, which is safe, stable, highly controllable, and low in cost, and which is suitable for market promotion in the field of kitchen appliances. 
     Example 7 
     The technical solution provided by the example of the present disclosure relates to a kitchen appliance, including a container cup fixing structure. The following description takes a stir-frying machine as an example. 
     A container cup fixing structure is assembled on the mainframe upper cover  2  of the mainframe  14 . The mainframe upper cover  2  is configured to assemble a container cup assembly  37  therein. The container cup fixing structure includes locking buckle members  39  and a rotating ring  41 . The number of the locking buckle members  39  is at least three, and the locking buckle members  39  are evenly distributed on the periphery of the mainframe upper cover  2 . The locking buckle member  39  includes a locking buckle bracket  3901  and a locking buckle that can be extended/retracted on the locking buckle bracket  3901 . Locking buckle openings  40  for the locking buckles to extend/retract therethrough are evenly provided on the mainframe upper cover  2 . The rotating ring  41  is rotatably assembled on the periphery of the mainframe upper cover  2  and is provided with a release lever  42  for turning the rotating ring  41  to rotate, and rotating ring bosses  43  for driving the locking buckles to retract. 
     Structure and Operation. In the technical solution, as shown in  FIGS.  25 - 32   , the container cup assembly  37  can be assembled inside the mainframe upper cover  2  and can be securely fixed on the mainframe  14  through the container cup fixing structure. The container cup fixing structure includes locking buckle members  39 , locking buckle openings  40  for the locking buckle members  39  to extend/retract therethrough, a rotating ring  41  for driving the locking buckles to retract. 
     The locking operation of the locking buckle members  39 . The number of the locking buckle members  39  is at least three, and the locking buckle members  39  are evenly distributed on the periphery of the mainframe upper cover  2 . The locking buckle brackets  3901  are fixed on the mainframe  14 , and the locking buckles can be extended/retracted on the locking buckle brackets  3901 . In a free state, return springs on the locking buckle members  39  push the locking buckles outward, and make the ends of the locking buckles extend out of the locking buckle openings  40 . When the container cup assembly  37  is put into the mainframe  14 , the bottom edge of the container cup assembly  37  presses inclined surfaces of the locking buckle heads downward, and the locking buckles retract into the locking buckle openings  40 . When the container cup assembly  37  is placed at the bottom, under the action of the elastic force of the return springs, the locking buckles are continued to extend outward and into the fixing holes of the container cup assembly  37  to implement the locking of the container cup assembly  37 , so that the mainframe  14  can hold the container cup assembly  37  securely. With at least three locking buckle members  39 , the container cup assembly  37  can be locked in all directions without concerning the problem that the container cup assembly  37  would come out or shake, which can greatly improve the user experience. 
     The unlocking operation of the locking buckle members  39 . Since the release lever  42  is locked on the rotating ring  41 , when the release lever  42  is turned clockwise, and the rotating ring bosses  43  of the rotating ring  41  press and expand locking buckle bosses of the locking buckle members  39 , making the locking buckles retract into the locking buckle openings  40 . When the locking buckles exit the fixing holes of the container cup assembly  37 , the container cup assembly  37  can be lifted, and thus the container cup assembly  37  can be easily unlocked by the release lever  42 , which is easy to operate. 
     Furthermore, in this example, it can also be contemplated that the container cup assembly  37  includes a container cup  15 , a cup holder  38 , and a handle shell  36 , which are integrally installed. The cup holder  38  is uniformly provided with at least three fixing holes  44  for the locks to be inserted in one-to-one correspondence. The fixing hole  44  is used for the end of the lock to extend in/out and implement the locking/unlocking of the container cup assembly  37 . 
     Furthermore, in this example, it can also be contemplated that the mainframe upper cover  2  is a cylindrical groove structure formed by concave downward from the upper surface of the mainframe  14 . The mainframe upper cover  2  includes an upper cover side wall  202  in a cylindrical surface form, an upper cover bottom wall  203  closing at the lower part of the upper cover side wall  202 , and a circle of upper cover outer edge  204  formed on the upper edge of the upper cover side wall  202  and extending outwards. The mainframe upper cover  2  can be used for installing the container cup assembly  37 . 
     Furthermore, in this example, it can also be contemplated that one side of the upper cover side wall  202  and upper cover outer edge  204  is provided with an avoiding slot  45  for avoiding the lower end of the handle shell  36 . In assembling, the cup holder  38  along with the container cup assembly  37  is inserted into the mainframe upper cover  2 , and the handle shell  36  is aligned with the avoiding slot  45  and inserted therein. It should be noted that the avoiding slot  45  is opened on the side of the mainframe upper cover  2  for avoiding the lower end of the handle shell  36 , and the avoiding slot  45  can also have a positioning function, so that the container cup assembly  37  can only be inserted into the mainframe upper cover  2  in one direction. 
     Furthermore, in this example, it can also be contemplated that the locking buckle bracket  3901  is fixed on the mainframe  14  on the periphery of the upper cover side wall  202 , the plane where the locking buckle bracket  3901  is located is tangent to the upper cover outer edge  204 , and the central axis of the locking buckle bracket  3901  and the central axis of the locking buckle are perpendicular to each other, and a sliding hole for sliding fit with the locking buckle is opened therethrough on the locking buckle bracket  3901 . The locking buckle can be extended/retracted on the locking buckle bracket  3901 . 
     Furthermore, in this example, it can also be contemplated that the locking buckle includes: 
     a locking buckle sliding portion  3904 , the locking buckle sliding portion  3904  being perpendicular to the locking buckle bracket  3901  and can slide freely inside the sliding hole, the line of the axis of the locking buckle sliding portion  3904  being parallel to the radial direction of the mainframe upper cover  2 , and the locking buckle sliding portion  3904  being provided with a limit block  3903  at one end away from the upper cover side wall  202 ; 
     a locking buckle head  3902 , the locking buckle head  3902  being installed at one end of the locking buckle sliding portion  3904  proximate to the upper cover side wall  202 , the locking buckle head  3902  having a right-angle trapezoidal block structure, a limit ring being provided between the locking buckle head  3902  and the locking buckle sliding portion  3904 , the size of the limit ring being much larger than the size of the locking buckle opening  40 , to prevent the locking buckle head  3902  from extending outward too much, the thickness of the part of the locking buckle head  3902  away from the locking buckle sliding portion  3904  being smaller than the thickness of the part of the locking buckle head  3902  proximate to the locking buckle sliding portion  3904 , the upper surface of the locking buckle head  3902  being an inclined surface and the lower surface of the locking buckle head  3902  being a horizontal surface; 
     a locking buckle boss  3906 , the locking buckle boss  3906  being installed on the locking sliding part, and being a right-angle trapezoidal block structure; 
     a return spring  3907 , the return spring  3907  being sleeved on the locking buckle sliding portion  3904  between the locking buckle bracket  3901  and a limit ring  3905 . 
     The locking of the locking buckles: the number of the locking buckle brackets  3901  is at least three, and the locking buckle brackets  3901  are evenly distributed on the periphery of the mainframe upper cover  2 . The locking buckles can be extended/retracted on the locking buckle brackets  3901 . In a free state, the return springs  3907  are in a freely stretched state to push the locking buckle heads  3902  outward, and the locking buckle heads  3902  extend to the outside of the locking buckle openings  40 . When the container cup assembly  37  is placed in the mainframe  14 , the bottom edge of the container cup assembly  37  presses down the inclined surfaces of the locking buckle heads  3902 , and the locking buckle heads  3902  are pressed to retract into the locking buckle openings  40 . At that time, the return springs are in a compressed state. When the container cup assembly  37  is placed at the bottom, under the elastic force of the return springs  3907 , the locking buckle heads  3902  continues to extend outward and into the fixing holes  44  of the container cup assembly  37  to implement the locking of the container cup assembly  37 . The container cup assembly  37  can be locked in all directions through at least three locking buckle members  39 , and there is no need to worry about the problem of the container cup assembly  37  coming out or shaking, which can greatly improve the user experience. 
     The unlocking of the locking buckles: since the release lever  42  is locked on the rotating ring  41 , when the release lever  42  is turned clockwise, the rotating ring bosses  43  of the rotating ring  41  press and expand the locking buckle bosses  3906  of the locking buckle members  39 , the locking buckle sliding portions  3904  then move in the sliding holes, and then the locking buckle heads  3902  retract into the locking buckle openings  40 . When the locking buckle heads  3902  exit the fixing holes  44  of the container cup assembly  37 , the container cup assembly  37  can be lifted up, and the container cup assembly  37  can be easily unlocked by the release lever  42 , and the operation is convenient. 
     Furthermore, in this example, it can also be contemplated that the rotating ring  41  has a ring structure. The rotating ring  41  is provided with at least three arc-shaped sliding slots  46  at equal intervals along the circumferential direction of the rotating ring  41 . The arc-shaped sliding slot  46  is engaged with a second guiding wheel  47 . The second guiding wheel  47  is slidably connected to the arc-shaped sliding slot  46  and the second guiding wheel  47  is fixedly connected to the upper cover outer edge  204 . The rotating ring  41  is formed with an avoiding portion protruding outward for avoiding the avoiding slot  45 . 
     Furthermore, in this example, it can also be contemplated that an arc-shaped through slot is provided extending along a circumferential direction of the upper cover outer edge  204  and penetrating the upper cover outer edge  204 . The release lever  42  is located above the arc-shaped through slot, and the lower end of the release lever  42  is fixedly connected to the rotating ring  41  through a connecting rod  48 . The connecting rod  48  is movably inserted into the arc-shaped through slot. 
     Furthermore, in this example, it can also be contemplated that at least three ball grooves are provided at equal intervals on the upper surface of the rotating ring  41 . A steel ball  49  is installed in the ball groove. The steel ball  49  can rotate freely in the ball groove, and the upper end of the steel ball  49  is exposed outside the ball groove. 
     The rotating operation of the rotating ring  41 . The rotating ring  41  is fixed on the mainframe upper cover  2  through at least three second guide wheels  47 , and the second guide wheels  47  are slidably connected to arc-shaped slots  46 . When the release lever  42  is pushed clockwise, the arc-shaped sliding slots  46  slides along the second guide wheels  47  and cooperate with the steel balls  49  to make the rotating ring  41  rotate smoothly. At this time, the tension spring  50  is in an elongated state. When the force acting on the release lever  42  disappears, the tension spring  50  pulls the rotating ring  41  tight in a counterclockwise direction, preventing the rotating ring  41  from affecting the return spring to push the locking buckle outward. 
     Furthermore, in this example, it can also be contemplated that the number of the rotating ring bosses  43  is the same as the number of the locking buckle members  39 , and the rotating ring bosses  43  are located at one side of the locking buckle members  39  in a one-to-one correspondence. The rotating ring boss  43  is a right-angled trapezoidal block structure, and the inclined surface of the rotating ring boss  43  is opposite to the inclined surface of the locking buckle boss  3906 . As shown in  FIGS.  29 - 32   , when the release lever  42  is pushed clockwise, the rotating ring bosses  43  move along with it and press the locking buckle bosses  3906 . The locking buckle sliding portion  3904  is driven to move within the sliding hole, and then the locking buckle head  3902  is retracted into the locking buckle opening  40 . On the contrary, when the force acting on the release lever  42  disappears, the tension spring  50  pulls the rotating ring  41  tight in a counterclockwise direction. The rotating ring  41 , the rotating ring boss  43 , and the locking buckle are reset. 
     Furthermore, in this example, it can also be contemplated that a tension spring  50  is provided. The tension spring  50  has one end fixed on the rotating ring  41  through a self-tapping screw with a pad  51  and the other end fixed on the upper cover outer edge  204  through a self-tapping screw with a pad  51 . When the force acting on the release lever  42  disappears, the tension spring  17  pulls the rotating ring  41  tight in a counterclockwise direction, preventing the rotating ring  41  from affecting the return spring to push the locking buckle outward, thus allowing the container cup fixing structure suitable for repeated operations. 
     In sum, the present disclosure provides a container cup fixing structure which can realize all-round locking of the container cup assembly, without concerning the problem of the container cup assembly coming out or shaking, and greatly improving the user experience. 
     A coupler fixing structure provided by the technical solution of the present disclosure can effectively prevent the user&#39;s improper operation causing liquid in the cup bottom cover to enter the interior and cause short circuit damage to the electrical components and is suitable for market promotion in the field of kitchen appliances, as shown in  FIGS.  33 - 37   . 
     Example 8 
     A kitchen appliance includes a coupler fixing structure and a coupler  52 . The coupler fixing structure is configured to secure the coupler  52  on a cup bottom structure of the container cup assembly. The coupler fixing structure includes: a sealing structure, arranged on an end surface of the coupler  52  which is attached to the cup bottom structure and used to close a gap between the coupler  52  and the cup bottom structure; and a connecting structure, the coupler  52  and the cup bottom structure being fixedly connected through the connecting structure. 
     Structure and Operation: in this technical solution, the coupler  52  is fixed on the cup bottom structure of the container cup assembly through the coupler fixing structure. The coupler fixing structure includes a sealing structure and a connecting structure. When the coupler is installed, firstly sealant is injected into the sealing structure of the coupler, then the coupler is attached to the installation position of the coupler of the cup bottom cover which is in the cup bottom structure and is fixedly connected to the cup bottom structure through the connecting structure. After the sealant dries, a sealing is formed in the gap between the coupler and the cup bottom cover, so that the cup bottom cover is completely sealed, effectively avoiding the user&#39;s improper operation causing liquid in the cup bottom cover to enter the interior and cause short-circuit damage to electrical components. In addition, the container cup assembly can be soaked in water as a whole or put into the dishwasher as a whole, so that it is easier to clean the food residues in dead corners of the container cup and improve the user experience. 
     Furthermore, in this example, it can also be contemplated that the container cup assembly includes the container cup  15 , the handle shell  36  and the cup bottom structure installed in one piece, and the cup bottom structure includes the cup bottom cover  53  and the cup holder  38  installed in one piece. The coupler  52  is installed between the cup bottom cover  53  and the cup holder  38 , and the upper end surface of the coupler  52  is fit together with the lower end surface of the cup bottom cover  53 . 
     Furthermore, in this example, it can also be contemplated that the sealing structure includes at least one circle of sealing slot  54  opened on the upper end face of the coupler  52  and used for filling the sealing element. The sealing element can be, but is not limited to, a sealant, or a silicone sealing ring that matches the shape of the sealing slot  54 . The sealant is injected into the sealing slot  54 , or the silicone sealing ring is put into the sealing slot  54 . When the upper end surface of the coupler  52  is fit together with the lower end surface of the cup bottom cover  53 , the sealant/silicone sealing ring can fill the gap between the coupler  52  and the cup bottom cover  53 , having a sealing effect between the outer edge of the coupler  52  and the cup bottom cover. 
     Furthermore, in this example, it can also be contemplated that the sealing slot  54  is in a closed shape, and the shape of the sealing slot  54  is similar to the shape of the outer contour of the coupler  52  and is arranged close to the outer edge of the coupler  52 . After the sealant dries, the outer edge of the coupler  52  and the cup bottom cover are sealed. 
     Furthermore, in this example, it can also be contemplated that when the sealing slot  54  is provided not less than two circles, the sealing slot  54  is proportionally reduced according to the outer contour shape of the coupler  52  and arranged from the outside to the inside. The arrangement of the multi-circle sealing slot  54  further improves the sealing effect between the coupler  52  and the cup bottom cover. 
     Furthermore, in this example, it can also be contemplated that a metal ground pin  55  and a conductive pin  56  vertically arranged are respectively installed on the lower end surfaces of the cup bottom cover  53  and the coupler  52 . The coupler  52  is also provided with a punch hole  57  for the metal ground pin  55  to pass through, and an annular sealing layer is arranged in the punch hole  57 . When the metal ground pin  55  is inserted into the punch hole  57 , water cannot enter between the metal ground pin  55  and the via hole  57 . The metal ground pin  55  is assembled by welding with the cup bottom cover, and the conductive pin  56  is assembled on the coupler by in-mold injection molding. 
     Furthermore, in this example, it can also be contemplated that at least one circle of sealing annular slot  58  for filling the sealing element is further formed on the upper end surface of the coupler  52 , and the sealing annular slot  58  surrounds the periphery of the punch hole  57 . As shown in  FIG.  4   , the sealing annular slot  58  is concentric with the punch hole  57 , and the sealant is injected into the sealing annular slot  58 , or the silicone sealing ring is placed inside the sealing annular slot  58 . When the upper end face of the coupler  52  is fit together with the lower end face of the cup bottom cover, the sealant/silicone sealing ring can fill the gap between the coupler  52  at the periphery of the punch hole  57  and the cup bottom cover to seal the gap between the punch hole  57  and the cup bottom cover, preventing water from passing through the punch hole  57  and entering between the coupler  52  and the cup bottom cover, so that the cup bottom cover is completely sealed, which can effectively avoid the user&#39;s improper operation that might cause liquid to enter the bottom cover and cause short circuit damage to the electrical components. 
     Furthermore, in this example, it can also be contemplated that the connecting structure includes at least two pairs of connecting hole  59  and connecting screw hole  60  which are respectively provided on the cup bottom cover  53  and the coupler  52  and correspond to each other. The connecting hole  59  and the connecting screw hole  60  are fixedly connected by a connecting screw  61 . By locking the connecting screw on the connecting screw hole  60 , the coupler  52  is fixedly connected to the cup bottom structure through the connecting structure. The structure is simple and easy to install and disassemble. 
     Furthermore, in this example, it can also be contemplated that the coupler fixing structure further includes a positioning structure, and the positioning structure includes at least a pair of positioning notch  62  and positioning perimeter  63  which are respectively arranged on the cup bottom cover  53  and the coupler  52  and are engaged and positioned with each other. The positioning notch  62  is opened on the cup bottom cover  53 , the positioning perimeter  63  is integrally formed by raising on the upper end of the coupler  52 , and the positioning perimeter  63  is used to be matched with the positioning notch for assembling and positioning and for positioning internal wires. That is, the positioning structure has a positioning effect to prevent the coupler  52  from being displaced on the cup bottom cover. 
     In sum, the present disclosure provides a coupler fixing structure and a kitchen appliance using the same, which can effectively prevent the user&#39;s improper operation causing liquid in the cup bottom cover to enter the interior and cause short-circuit damage to electrical components. 
     Example 9 
     As shown  FIGS.  38 - 45   , a kitchen appliance includes a screw lid sealing structure and a screw lid  32 . 
     A screw lid sealing structure for a kitchen appliance is assembled on the screw lid  32 . The outer periphery of the bottom surface of the screw lid  32  has an outer edge of the lid  64 . The bottom surface of the screw lid  32  is also provided with a circle of annular wall  65  integrally connected with it. It is characterized in that: the screw lid sealing structure includes: a sealing ring assembly, which includes a sealing ring  66  sleeved on the annular wall  65 , an upper bracket  67  arranged between the sealing ring  66  and the annular wall  65  for limiting everting of the upper part of the sealing ring  66  and a lower bracket  68  for compressing the sealing ring  66  and limiting displacement of the sealing ring  66 . The edge of the sealing ring  66  is formed with at least one layer of flange  6601  with the lower part everted, the outer edge of the free end of the flange  6601  is an R angle sealing portion  6602 , and the inner edge is a parting line position  6603 . There are at least three screw lid and screw buckle assemblies, and the assemblies are distributed at intervals on the inner side of the outer edge of the lid  64 . 
     Structure and Operation. In this technical solution, the screw lid sealing structure is assembled on the screw lid  32 , and the screw lid sealing structure includes a sealing ring assembly and a screw lid and screw buckle assembly; wherein the sealing ring assembly includes a sealing ring  66  sleeved on the annular wall  65 , an upper bracket  67  arranged between the sealing ring  66  and the annular wall  65  for limiting everting of the upper part of the sealing ring  66 , and a lower bracket  68  for compressing the sealing ring  66  and limiting displacement of the sealing ring  66 . As shown in  FIGS.  40 - 42   , first, the upper bracket  67  is sleeved on the sealing ring  66  and is also sleeved on the annular wall  65 . The upper bracket  67  can limit everting of the upper part of the sealing ring  66 , and then ensure the sealing performance of the sealing ring. Then, the lower bracket  68  is pressed tightly on the sealing ring  66  and fixed with the annular wall  65  to prevent the sealing ring from moving up and down, so as to realize the fixing of the positions of the upper bracket  67 , the sealing ring  66  and the lower bracket  68 , which is convenient to assemble and disassemble. The upper bracket  67 , the sealing ring  66 , and the lower bracket  68  can be removed from the screw lid  32  respectively. While in the related art, the rib  78  is directly formed on the screw lid  32  (as shown in  FIG.  38   ), which will result in a problem that the length of the release stroke L 1  of the screw buckle assembly is insufficient, so that the screw buckle assembly cannot be made using a mold. In this technical solution, a separate upper bracket  67  is made, which can not only allow the screw buckle assembly of the screw lid  32  to be released from the mold, but also can withstand the sealing ring  66  to prevent everting. The structure is simple and has strong practicability. The edge of the sealing ring  66  is formed with at least one layer of flange  6601  with the lower part everting. The everting flange  6601  fits to the container cup tighter when subject to impulsive force and pressure of stirring liquid, having a further sealing effect. The outer edge of the free end of the outer flange  6601  is an R angle sealing portion  6602 , and the inner edge is a parting line position  6603 . As shown in  FIGS.  39 - 42   , when the screw lid  32  is snapped on the container cup  15 , the R angle sealing portion  6602  abuts against water sealing contact position of the container cup  15 . While in the related art, the conventional sealing ring here is at a parting line position, and since the parting line position can produce a glitch, which is an uneven surface and likely to fail to seal the water, the sealing effect is poor. In this technical solution, the parting line position  6603  is arranged on the inner edge of the free end of the flange  6601 . Even if there is a glitch at this position, since it does not contact the sealing surface of the container cup, there is no need to worry about the sealing problem. The R angle sealing portion  6602  is arranged on the outer edge of the free end of the outer flange  6601  and is in close contact with the sealing surface of the container cup, which greatly improves the sealing effect. The screw lid sealing structure further includes a screw lid and screw buckle assembly, through which the screw lid can be locked or unlocked to the container cup, and the operation is convenient and the practicability is high. 
     Furthermore, in this example, it can also be contemplated that in this example, it can also be contemplated that the longitudinal section of the upper bracket  67  is in a “r” shape, which includes a first annular base portion  6701  lying horizontally, and an annular rib portion  6702  formed on the outer edge of the first annular base portion  6701  and extending downwardly for wrapping the upper peripheral portion of the seal ring  66 . The first annular base portion  6701  is located between the sealing ring  66  and the screw lid  32 , and the annular rib portion  6702  wraps the upper peripheral portion of the sealing ring  66  to restrict the upper part of the sealing ring  66  from everting, thereby ensuring the sealing performance of the sealing ring. 
     Furthermore, in this example, it can also be contemplated that the mold release stroke of the screw buckle assembly is formed between the annular wall  65  and the outer edge of the lid  64 , and the width of the mold release stroke of the screw buckle assembly is at least 18 mm. The length L 2  of the mold release stroke of the screw buckle assembly is sufficient to meet the production of the mold, and an annular buckle groove that can be fastened with the container cup  15  is formed between the annular rib portion  6702  and the outer edge of the lid  64 . 
     Furthermore, in this example, it can also be contemplated that the upper part of the sealing ring  66  is provided with a lid ring groove  69  for avoiding the first annular base portion  6701 , and the upper part of the sealing ring  66  and the lid ring groove  69  are respectively raised and formed with at least one circle of annular sealing flange  70 . The annular sealing flange  70  has a sealing effect to prevent debris from entering the gap between the sealing ring  66  and the upper bracket  67  and the screw lid  32 , and also facilitates subsequent cleaning. 
     Furthermore, in this example, it can also be contemplated that the lower bracket  68  includes an annular connecting portion  6801 , a second annular base portion  6802  and a third annular base portion  6803  respectively formed at the upper and lower ends of the annular connecting portion  6801  and extending in opposite directions to each other. The second annular base portion  6802  and the third annular base portion  6803  are parallel to each other and are used to support the sealing ring  66  and the lower end of the annular wall  65  respectively, preventing the sealing ring  66  from moving up and down. 
     Furthermore, in this example, it can also be contemplated that at least one circle of annular sealing step  71  is formed on the inner protrusion of the sealing ring  66 . The annular sealing step  71  has a sealing effect to prevent debris from entering the gap between the sealing ring  66  and the annular wall  65 , and also facilitates subsequent cleaning. 
     Furthermore, in this example, it can also be contemplated that a snap structure is further provided between the annular connecting portion  6801  and the annular wall  65 , and the snap structure includes at least three buckle slots  72  in an annular array evenly distributed on the outer side of the annular wall  65 , and at least three buckles  73  that are evenly arranged in an annular array on the inner side of the annular connecting portion  6801  and are adapted to the buckle slots  72 . The number of the buckle slots  72  and the number of the buckles  73  are the same, and the buckle slots  72  and the buckles  73  are arranged in one-to-one correspondence. The lower bracket  68  and the annular wall  65  connected by the snap structure have a simple, practical and aesthetic structure, improve the assembly efficiency and assembly effect between the lower bracket  68  and the annular wall  65 , and are easy to assemble, which is convenient for users to disassemble and install by themselves and thoroughly clean all parts. 
     Furthermore, in this example, it can also be contemplated that the opening end of the container cup  15  is upwardly bent at least once to form at least one inclined surface  74 , and the upper end of the container cup  15  is provided with a cup rim  77  along the horizontal direction. When the screw lid  32  is installed on the container cup  15 , the inclined surface  74  is arranged so that the contact area and the amount of interference between the sealing ring and the annular inclined surface  74  of the container cup are very small, which can reduce the interference stroke between the sealing ring  66  and the container cup  15  when installing. The friction between the sealing ring and the container cup is very small, which is conducive to the easy tightening of the screw lid, and the R angle sealing portion  6602  abuts against the inclined surface  74  of the container cup  15 , which can greatly improve the sealing effect. 
     Furthermore, in this example, it can also be contemplated that the screw lid screw assembly includes at least one hook-type buckle  35  and at least two screw buckles  75 . The outer side of the cup rim  77  is also protruded with raised structures  76  which can be screwed into the screw buckles  75  in a one-to-one correspondence. 
     Furthermore, in this example, it can also be contemplated that a handle shell  36  is provided on one side of the container cup  15 , and an opening  3603  is provided on the upper part of the handle shell  36  for the hook-type buckle  35  to partially enter. When the screw lid  32  is installed on the container cup  15 , the raised structures  76  on the outer side of the cup rim  77  are screwed into the screw buckles  75  on the screw lid, and the hook-type buckle  35  partially enters the opening  3603  of the handle shell  36 , to realize double locking. 
     In sum, the present disclosure provides a cup lid sealing structure for a stir-frying machine, which can reduce the contact area and interference amount between the sealing ring and the container cup, facilitate easy installing of the lid, and improve the success rate of mold ejection and sealing effect. 
     Example 10 
     As shown in  FIGS.  46 - 51   , the technical solutions provided by the examples of the present disclosure relate to a shockproof structure for a container cup applicable to a kitchen appliance and relate to the field of kitchen appliances. Taking a stir-frying machine product as an example, a container cup shockproof structure applicable to a kitchen appliance is assembled in the mainframe upper cover  2  of the mainframe  14 , and the mainframe upper cover  2  is used for assembling the container cup assembly  37 , which includes at least three shockproof structures evenly distributed in the mainframe upper cover  2 . The shockproof structure includes a shockproof pad structure and a shockproof seat structure. The shockproof pad structure includes an arch-shaped shockproof pad body  79  and a shockproof pad support rod  80  which are formed integrally, as well as a limiting step  81  disposed on the shockproof pad support rod  80 . The shockproof seat structure is integrally formed on the inner surface of the mainframe upper cover  2  and includes a shockproof seat body  82  for receiving the arch-shaped shockproof pad body  79  and a limiting hole  83  for inserting the shockproof pad support rod  80 . 
     Structure and Operation. In this technical solution, shockproof structures are evenly distributed on the inner surface of the mainframe upper cover  2 . The shockproof pad structure includes a shockproof pad structure and a shockproof seat structure. The shockproof seat structure is integrally formed on the inner surface of the mainframe upper cover  2 . When the shockproof pad structure is assembled with the shockproof seat structure, the shockproof pad support rod  80  is matched and inserted into the limiting hole  83 , and the limiting step  81  is stuck under the limiting hole  83 , so that the shockproof pad structure cannot be displaced in the vertical direction. The arch-shaped shockproof pad body  79  is matched and installed in the shockproof seat body  82 , so that the shockproof pad structure cannot be displaced in the horizontal direction. At that time, the upper part of the arch-shaped shockproof pad body  79  is exposed above the shockproof seat body  82 . When the container cup assembly  37  is placed in the mainframe  14 , the bottom edge of the container cup assembly  37  contacts and presses the upper end of the arch-shaped shockproof pad body  79 . Preferably, the arch-shaped shockproof pad body  79  is made of soft rubber. The arch-shaped shockproof pad body  79  is designed into an arch shape, which can bear weight and undergo certain elastic deformation, that is, it can be compressed and rebound, which can effectively reduce vibration. In this example, a plurality of arch-shaped shockproof pad bodies  79  made of soft rubber are provided between the mainframe cover and the container cup assembly, to avoid direct contact between hard rubbers, having a cushioning and shock-absorbing effect. The noise and vibration of the whole machine can be greatly reduced, providing a better user experience. 
     Furthermore, in this example, it can also be contemplated that the mainframe upper cover  2  is a cylindrical groove structure formed by a depression from the upper surface of the mainframe  14 , which includes an upper cover side wall  202  in a cylindrical surface form, an upper cover bottom wall  203  closing at the lower part of the upper cover side wall  202 , and a circle of upper cover outer edge  204  formed on the upper edge of the upper cover side wall  202  and extending outwards. The mainframe upper cover  2  can be used to install the container cup assembly  37 . 
     Furthermore, in this example, it can also be contemplated that the upper middle part of the arch-shaped shockproof pad body  79  protrudes upward to form an elastic protrusion  84 , and the lower middle part of the arch-shaped shockproof pad body  79  recesses upward to form a recessed space  85 . The surface of the arch-shaped shockproof pad body  79  is in an arc transition shape. When the container cup assembly  37  is put into the mainframe  14 , the bottom edge of the container cup assembly  37  contacts and presses the upper end of the arch-shaped shockproof pad body  79 . The elastic protrusion  84  can bear weight and undergo certain elastic deformation and can effectively reduce vibration. Since the lower middle part of the arch-shaped shockproof pad body  79  recesses upward to form a recessed space  85 , when the elastic protrusion  84  is pressed and deformed, the recessed space  85  not only can provide more deformation space for the elastic protrusion  84 , but also can help the subsequent reset and rebound of the elastic protrusion  84 , which can greatly improve the effect of buffering and shock absorption. 
     Furthermore, in this example, it can also be contemplated that the longitudinal sections of the elastic protrusion  84  and the recessed space  85  are respectively trapezoidal. 
     Furthermore, in this example, it can also be contemplated that the shockproof pad support rod  80  is arranged perpendicular to the arch-shaped shockproof pad body  79  and is fixedly connected to the middle of the lower end of the arch-shaped shockproof pad body  79 . 
     Furthermore, in this example, it can also be contemplated that the limiting step  81  is a circular truncated structure with a larger upper size and a smaller lower size and extending outward along the radial direction of the shockproof pad support rod  80 , and the limiting step  81  is compressible. The diameter of the upper end of the limiting step  81  is larger than the diameter of the limiting hole  83 . When the shockproof pad structure is assembled with the shockproof seat structure, the shockproof pad support rod  80  is matched and inserted into the limiting hole  83 , and the limiting step  81  is stuck under the limiting hole  83 , so that the shockproof pad structure cannot be displaced in the vertical direction. The limiting step  81  is a compressible structure which can facilitate the assembly/disassembly of the shockproof pad structure and the shockproof seat structure. 
     Furthermore, in this example, it can also be contemplated that the shockproof seat structures are arranged at equal intervals along the outer edge of the upper cover bottom wall  203 , and the shockproof seat body  82  is recessed downward from the upper surface of the upper cover bottom wall  203 , and the shape of the shockproof seat body  82  is adapted to the shape of the arch-shaped shockproof pad body  79 . The shockproof structures of the container cup are evenly distributed on the inner surface of the mainframe upper cover  2 , which can improve the assembly stability of the container cup assembly. 
     Furthermore, in this example, it can also be contemplated that the upper edge of the shockproof seat body  82  also extends upward to form a circle of shockproof seat premier  86 , so that the shockproof pad structure cannot be displaced in the horizontal direction. 
     Example 11 
     As shown in  FIGS.  46 - 51   , the shockproof structure for the container cup also includes an upper clutch below the container cup assembly  37 , and a lower clutch  87  assembled on the motor shaft of the motor  1 . The upper clutch is a hexagram cylindrical structure, and the upper surface of the lower clutch  87  is recessed from the middle part to form a star-shaped cylindrical slot  88  for the upper clutch to be matched and inserted therein. A hollow washer  89  matched in shape is clamped between the upper clutch and the star-shaped cylindrical slot  88 . In usage of the kitchen appliance, the container cup assembly  37  is assembled on the mainframe upper cover  2 . At this time, the upper clutch is inserted into the hollow washer  89 , and the upper clutch, the hollow washer  89  and the star-shaped cylindrical slot  88  are matched and fit with each other, implementing the power transmission connection among the blade assembly, the upper clutch, the lower clutch, and the motor, so that the power transmission connection between the upper and lower clutches has a soft rubber buffer, which can cooperate with the shockproof pad structure and the shockproof seat structure, and can further greatly reduce the noise and vibration of the whole machine during high-speed stirring, and provide a better user experience. 
     Wherein, the clutch assembly  3  includes an upper clutch and a lower clutch. 
     It should be noted that the upper clutch, the hollow washer  89 , and the star-shaped cylindrical slot  88  being arranged in hexagram cylindrical structure can not only achieve high assembly stability and high concentricity, but also help reduce the noise and vibration of the whole machine. When the lower clutch is injection molded, the lower clutch can be designed with three equally spaced glue feeding points for injection molding, so that the size is stable and the concentricity is high during injection molding, which can further effectively reduce the vibration and noise generated by the blade holder. 
     Example 12 
     As shown in  FIGS.  46 - 51   , a kitchen appliance includes a mainframe  14 , a motor  1 , a container cup assembly  37 , a mainframe upper cover  2  being formed by recessing the upper surface of the mainframe housing for the container cup assembly  37  to be assembled, characterized in that the kitchen appliance is provided therein with a shockproof structure for a container cup applicable to a kitchen appliance of any of described above. When the kitchen appliance is in use, the container cup assembly  37  is put into the mainframe  14 , the bottom edge of the container cup assembly  37  contacts and squeezes the upper end of the arch-shaped shockproof pad body  79 , and the arch-shaped shockproof pad body  79  is designed as an arch shape, which can not only bear the weight but also have a certain elastic deformation, which can greatly reduce the noise and vibration of the whole machine. At this time, the upper clutch is inserted into the hollow washer  89 , and the upper clutch, the hollow washer  89  and the star-shaped cylindrical slot  88  are matched and fit with each other, implementing the power transmission connection among the blade assembly, the upper clutch, the lower clutch, and the motor, so that the power transmission connection between the upper and lower clutches has a soft rubber buffer, which can cooperate with the shockproof pad structure and the shockproof seat structure, and can further greatly reduce the noise and vibration of the whole machine during high-speed stirring, and provide a better user experience. 
     In sum, the present disclosure provides a shockproof structure for a container cup applicable to a kitchen appliance and a kitchen appliance, which can greatly reduce the noise and vibration of the whole machine and provide a better user experience. 
     The above examples can be combined in any manner as desired. 
     The present disclosure has been described in detail through the above examples, however, the disclosure is only preferred examples of the present disclosure and cannot be considered as limiting the scope of implementation of the present disclosure. All equal changes and improvements made in accordance with the scope of application of the present disclosure should still fall within the scope of the patent of the present disclosure.