baber/WOPTO huggingface dataset:
Patent WO-2022082775-A1 (WO)
Inventor: ZHANG YONGPING
IPC: H04W24/10
Filed: 2020-10-23
Abstract: 本申请公开了一种信道状态信息上报方法及装置，用于解决系统性能下降的问题。具体的，配置给终端设备的同一个CSI-RS资源的不同的端口组可以关联不同的TCI状态，或者，配置给终端设备的属于同一个资源组的不同的资源关联不同的TCI状态，或者，配置给终端设备的不同的CSI上报配置关联不同的TRP。终端设备在关联不同的TCI状态的资源上进行信道测量时，是假设两个TRP均为其提供服务得到，降低降低对系统性能的影响。关联不同的TCI状态的不同资源(比如端口组、CSI-RS资源、资源集合)可以占用不同的时间单元，为终端设备切换波束提供足够的时长。
Patent WO-2022087813-A1 (WO)
Title: Acoustic wave transduction unit and manufacturing method therefor, and acoustic wave transducer
Inventor: CHEN YUJU
IPC: B06B1/02
Filed: 2020-10-27
Abstract: Disclosed are an acoustic wave transduction unit and a manufacturing method therefor, and an acoustic wave transducer. The acoustic wave transduction unit comprises: a substrate; a first electrode provided on the substrate; a support portion located on the side of the first electrode away from the substrate; a vibrating diaphragm layer located on the side of the support portion away from the substrate; and a release hole, the release hole at least running through the vibrating diaphragm layer. A vibration chamber is defined by the support portion, the vibrating diaphragm layer and the first electrode, and the vibration chamber is communicated with the release hole; the support portion matches the lattice of the first electrode, and the support portion matches the lattice of the vibrating diaphragm layer; the material of the support portion can be decomposed into metallic simple substances and gas under the action of laser; and the energy gap of optical molecules of the support portion is smaller than the energy gap of optical molecules of the vibrating diaphragm layer.
Patent WO-2022088116-A1 (WO)
Inventor: YUAN HONGQING
IPC: C09D183/04
Filed: 2020-10-30
Abstract: 一种超耐候水性漆、其制备方法和应用，该漆包括甲醚化氨基树脂、水性饱和聚酯树脂、水性聚醚改性有机硅树脂、色浆、消泡剂、流平剂、润湿剂、分散剂、附着力促进剂。该漆以水作溶剂，无味，节省大量资源，不含苯、二甲苯、乙烷、甲醛等挥发性有害物质，防腐性能优良，复涂性能良好，抗辐射，不燃不爆，消除了施工、储存时火灾隐患，降低了对大气污染，在密闭环境中也可照常施工，不经过任何研磨程序，直接搅拌即可，制备方法简单可靠。该漆在卷材上运用广泛，可在室外大面积施工，方法简单易施工，该漆在卷材表面附着力强，耐候性强，操作性能简单，涂装工具可用水直接清洗，大大有效减少对施工人员的伤害。
Patent WO-2021248802-A1 (WO)
Inventor: WU BIN
IPC: H02K5/00
Filed: 2020-11-10
Abstract: An energy-saving permanent magnet synchronous motor, comprising a motor body (1). A mounting housing (2) is provided on the bottom of the motor body (1); a mounting block (3) is fixedly connected to the bottom of the motor body (1); the bottom of the mounting block (3) extends to the bottom of an inner cavity of the mounting housing (2); two sides of the inner cavity of the mounting housing (2) are both provided with grooves (4); a first spring (5) is provided in an inner cavity of each groove (4); push plates (6) are fixedly connected to opposite sides of the two first springs (5); clamping blocks (7) are fixedly connected to opposite sides of the two push plates (6); and opposite sides of the two clamping blocks (7) both penetrate through the mounting block (3) and extend to an inner cavity of the mounting block (3). By providing the motor body (1), the mounting housing (2), the mounting block (3), the grooves (4), the first springs (5), the push plates (6), the clamping blocks (7), through holes (8), a rotating rod (9), an oval block (10), a grip (11), moving plates (12), push blocks (13), push rods (14), limiting boxes (15), second springs (16), limiting plates (17), and limiting rods (18), the problem that an existing energy-saving permanent magnet synchronous motor is inconvenient to maintain is solved, and the energy-saving permanent magnet synchronous motor has the advantage of being convenient to maintain.
Patent WO-2022099703-A1 (WO)
Inventor: DONG JIANLI
IPC: H04W12/06
Filed: 2020-11-16
Abstract: 本申请涉及一种接入认证方法、平台网关和平台云。其中，该接入认证方法，包括：平台网关向平台云发送密钥参数，该密钥参数用于在该平台云生成确认密钥和配置认证信息；该平台网关接收来自该平台云的该配置认证信息；该平台网关基于该配置认证信息向该平台云发送设备认证信息，以在该平台云基于该确认密钥和该设备认证信息对待认证设备进行接入认证。本申请实施例，可以提高设备认证过程中的信息安全性。
Patent WO-2021098668-A1 (WO)
Inventor: CHEN XU
IPC: A45D20/12
Filed: 2020-11-17
Abstract: Provided are an air guide part (40) and a hair drying device, the air guide part (40) comprises a pipe body (41) and a flow guide portion (42), the pipe body (41) comprises a first end face (411) and a second end face (412) which are oppositely arranged, the first end face (411) is provided with a fluid inlet (414), the second end face (412) is provided with a fluid outlet (416) communicated with the fluid inlet (414); the flow guide portion (42) is arranged on the pipe body in a sleeving mode and comprises a flow guide face (421) facing the fluid inlet (414), the flow guide face (421) extends from the end of the pipe body (41) provided with the fluid outlet (416) in the direction from the second end face (412) to the first end face (411). When fluid flows from the side where the part close to the fluid outlet (416) of the flow guide face (421) is located to the outer wall of the pipe body, the fluid makes contact with the flow guide face (421) and flows along the flow guide face (421).
Patent WO-2021120956-A1 (WO)
Inventor: WANG JINHUI
IPC: H04J3/06
Filed: 2020-11-17
Abstract: Disclosed is a fiber optic link detection method. The method can be applied in an optical communication network. The optical communication network comprises a first network device and a second network device. A first interface of the first network device communicates with a second interface of the second network device via a first fiber optic link. Both the first network device and the second network device support a PTP. The first network device is a slave device, and the second network device is a master device. When the first interface of the first network device performs time synchronization with the second interface of the second network device using the PTP, if the first fiber optic link comprises a third network device which does not support the PTP, the accuracy of time synchronization is affected. In embodiments of the present application, the first network device can determine whether the first fiber optic link comprises a third network device which does not support the PTP. When it is determined that the first fiber optic link comprises the third network device, a corresponding measure can be further taken to improve the accuracy of time synchronization.
Patent WO-2021098865-A1 (WO)
Inventor: HE JIANJUN
IPC: G03B15/03
Filed: 2020-11-20
Abstract: Provided are a photographing control method and system based on an external flash light source, and a storage medium. The method comprises: a first processing assembly controlling a working state of an internal flash light source and an image acquisition assembly according to a preset target brightness parameter, obtaining light ray state information of the internal flash light source and photographing state information of the image acquisition assembly under a corresponding working state, and generating an external light filling start trigger signal according to the light ray state information and the photographing state information, wherein the external light filling start trigger signal comprises a light filling start time; a signal sending assembly sending the external light filling start trigger signal to an external flash light source, so that the external flash light source starts illumination light filling work at the light filling start time according to the external light filling start trigger signal; and the image acquisition assembly starting photographing work after a flash illumination assembly starts the illumination light filling work. In the present invention, under the premise of not changing device software and hardware, an external flash light source is synchronously controlled to perform illumination light filling during exposure, thereby improving the quality of photographing.
Patent WO-2022052319-A1 (WO)
Inventor: XI XIAOYAN
IPC: G01N1/22
Filed: 2020-11-24
Abstract: A gas detection system and detection method, which are suitable for real-time online monitoring of the air quality of an air duct (10). The gas detection system comprises: a sampling module (110), which is used for collecting in real time a gas to be detected in the air duct (10); a detection module (120), which is connected to the sampling module (110), the detection module (120) detecting in real time the collected gas by means of a plurality of sensors; and an information processing module (130), which is connected to the detection module (120) and used for acquiring detection data of the detection module (120) and processing in real time the detection data to obtain a detection result. The detection module (120) comprises a first detection unit (121) and a second detection unit (122). The first detection unit (121) is connected to the second detection unit (122). By means of the first detection unit (121) performing preliminary detection and processing on the gas, and then the second detection unit (122) detects the gas. The detection data of the first detection unit (121) may also be used to compensate the second detection unit (122), so as to reduce the deviation of the detection result and enhance the stability and reliability of the detection result.
Patent WO-2021135857-A1 (WO)
Inventor: CHEN RUI
IPC: H04L9/32
Filed: 2020-12-08
Abstract: 本说明书实施例提供了一种对用于确定数据同步对端节点的信任节点信息进行更新的方法，包括：针对第一区块链节点处的待同步数据，基于所述信任节点信息，为所述待同步数据确定作为数据同步对端节点的第二区块链节点；向所述第二区块链节点发送针对所述待同步数据的数据同步请求消息，以请求从所述第二区块链节点获取所述待同步数据；基于所述第二区块链节点针对所述数据同步请求消息的数据同步响应，更新所述信任节点信息。
Patent WO-2021147570-A1 (WO)
Title: Method for large-scale synthesis of long-chain rna and method for site-specific modification thereof
Inventor: HU YONG
IPC: C12P19/34
Filed: 2020-12-15
Abstract: Provided are a method for the large-scale synthesis of a long-chain RNA and a method for the site-specific modification thereof. The method for the large-scale synthesis of a long-chain RNA comprises: steps such as designing short RNA fragments and splint DNA fragments; ligating; capping; and removing the splint DNA fragments. A large number of short RNA fragments and different splint DNA fragments are chemically synthesized, and then different short RNA fragments are ligated together by means of a biological method so as to form a target long RNA chain. The product has a low mutation rate for long-chain RNAs, multiple short RNA fragments can be assembled in a single reaction, and long-chain RNAs can be synthesized at a high throughput so as to fulfill the large-scale production of long-chain RNAs. In addition, by chemically modifying short RNA fragments, the site-specific modification of long-chain RNAs can be achieved.
Patent WO-2022126470-A1 (WO)
Inventor: JIN HUI
IPC: G06F11/14
Filed: 2020-12-17
Abstract: 一种Flash数据掉电保护方法及设备，该方法包括：在电子设备上电时，遍历掉电保护区，查找符合预设条件的数据页，符合预设条件的数据页为备份区的起始页；若存在符合预设条件的数据页，则根据符合预设条件的数据页所指示的备份区进行数据恢复，清除当前备份区中备份的数据，并将当前备份区终止页的逻辑下一页作为下次写操作的备份区的起始页；若不存在符合预设条件的数据页，则生成随机数，并依据生成的随机数从掉电保护区选取一页作为下次写操作的备份区的起始页。在确保数据完整性的前提下，使得掉电保护区内各数据页的擦除次数趋于相同，提高了掉电保护区的使用效率，有助于提高产品的使用寿命。
Patent WO-2022126522-A1 (WO)
Inventor: JIANG ZHUOJIAN
IPC: G06K9/32
Filed: 2020-12-17
Abstract: 一种物体识别方法、装置、可移动平台及存储介质，所述方法包括：获取待识别物体的点云数据以及图像数据，并根据所述点云数据和所述图像数据获取第一融合特征；以及，根据所述图像数据获取第一图像特征（S101）；根据所述第一融合特征获取第一尺寸系数；以及，根据所述第一图像特征获取第二尺寸系数；所述第一尺寸系数和所述第二尺寸系数表征所述待识别物体属于目标尺寸范围的物体的概率（S102）；根据所述第一融合特征和所述第一尺寸系数获取第二融合特征（S103）；以及，根据所述第一图像特征和所述第二尺寸系数获取第二图像特征；根据所述第二融合特征和所述第二图像特征对所述待识别物体进行识别（S104）。本方法实现对属于目标尺寸范围的物体进行有效识别。
Patent WO-2021129566-A1 (WO)
Title: 电解水生产高纯氢气和/或氧气的装置和方法
Inventor: BRIGLIA ALAIN
IPC: C25B9/00
Filed: 2020-12-21
Abstract: 涉及一种通过电解水制备高纯氢气和/或氧气的装置，包括电解器和将脱盐水脱气的脱气器，脱气器位于电解器的上游。脱盐水在脱气器中加热脱气后，其中气体杂质，特别是氩气的含量可以减少到几个ppb(重量比)。这种脱盐脱气水在电解器中电解后产生的氢气和氧气也含有极少量的氩气，满足了半导体产业的需要。还涉及使用上述装置制备高纯氢气和/或氧气的方法。
Patent WO-2022147848-A1 (WO)
Inventor: MEI DEJIN
IPC: H01F27/02
Filed: 2021-01-13
Abstract: Disclosed is a new gas-filled-type transformer with an insulating medium, which relates to the technical field of transformers. The new gas-filled-type transformer with an insulating medium comprises a transformer body, wherein the surface of the transformer body is sleeved with an anti-collision plate, a side face of the transformer body communicates with an exhaust pipe and a gas intake pipe, one end of the exhaust pipe is fixedly connected to a shell, and a heat insulation layer is arranged on the inner wall of the shell. In the present invention, by means of providing the shell, a square pipe, nozzles and valves, when the transformer is in use, the valves control a water flow in a water intake pipe, a gas flow in the exhaust pipe and a gas flow in the gas intake pipe; an exhaust fan discharges a high-temperature gas in the transformer body into the shell; water in the water intake pipe enters the square pipe through the shell and the heat insulation layer, and the water is dispersed through the nozzles, so as to cool the high-temperature gas; and an inclined plate prevents the water from entering the gas intake pipe. Water enters the square pipe through the water intake pipe, and the water cools a high-temperature gas by means of through holes and the nozzles, such that the effects of a good heat dissipation performance and a high safety performance are achieved.
Patent WO-2022151007-A1 (WO)
Inventor: LI MENG
IPC: C01B33/12
Filed: 2021-01-13
Abstract: The composite particles contain alumina particles with a card-house structure formed of three or more plate-like alumina particles that adhere to each other and an inorganic covering portion located on a surface of the plate-like alumina particles and containing a composite metal oxide.
Patent WO-2021190150-A1 (WO)
Title: 佩戴检测电路、颈部按摩装置以及佩戴检测方法
Inventor: LIU JIE
IPC: A61N1/36
Filed: 2021-02-02
Abstract: 一种佩戴检测电路（10）、颈部按摩装置以及佩戴检测方法，佩戴检测电路（10）包括，第一输入模块（1），第一输入模块（1）的第一端用于接收电极驱动供电信号；第二输入模块（2），第二输入模块（2）的第一端用于接收电极驱动检测信号；比较模块（3），比较模块（3）的第一输入端与第一输入模块（1）的第二端连接，比较模块（3）的第二输入端与第二输入模块（2）的第二端连接，比较模块（3）用于根据电极驱动供电信号和电极驱动检测信号的比较结果确定佩戴状态，并输出佩戴检测信号。
Patent WO-2022170542-A1 (WO)
Inventor: TANIUCHI HIROTADA
IPC: G01L5/22
Filed: 2021-02-10
Abstract: An apparatus (10) for force sensing, and an electronic device (1). The electronic device (1) includes a first deformable portion (21) and a second deformable portion (22). The apparatus (10) includes an operational amplifier (32,105) and four branches (101~104) connected as a loop. Each branch (101~104) is connected between either a first input terminal (V  IN1 ) or a second input terminal (V  IN2 ) of the operational amplifier (32,105) and either a first terminal supplying a first voltage or a second terminal supplying a second voltage. At least two of the four branches (101~104) include the first strain sensor (111) attached to a first deformable portion (21) and a second strain sensor (112) attached to the second deformable portion (22), respectively. The second deformable portion (22) is strained when the first deformable portion (21) being strained. Sensitivity of the apparatus (10) with respect to a force or a strain applied on a deformable portion (2,21~24) of the electronic device (1) is improved by referring to a sensor (111~114) attached to a related deformable portion (21~24).
Patent WO-2022170569-A1 (WO)
Inventor: HUANG YONGBING
IPC: H04N7/00
Filed: 2021-02-10
Abstract: A data processing method and apparatus in the field of artificial intelligence. The method comprises: selecting a first reference data block on the basis of the similarity between a data block to be compressed and each pre-stored reference data block; obtaining a first model associated with the first reference data block; and obtaining a compression model according to the first model, compressing, on the basis of the compression model, the data block to be compressed to generate a compressed data block, and generating a compressed data packet comprising the compressed data block and compression model information. The data processing method reduces the data compression duration, and improves the data compression performance.
Patent WO-2022033007-A1 (WO)
Title: User Equipment Signaling of Customize Ringing Signal Capability
Inventor: CHEN CHEN
IPC: H04L29/06
Filed: 2021-02-13
Abstract: Embodiments include systems and methods for wireless device signaling a network regarding customized ringing signal (CRS) capability and use of such information by the network. Various embodiments may receiving from the network an INVITE message notifying the wireless device of an incoming call, determining whether the INVITE message indicates that the network provides CRS service if the wireless device supports a CRS function, and including an indication in a response to the INVITE that the wireless device supports the CRS function in response to determining that the INVITE message includes an alert information header field indicating that the network provides CRS service. Various embodiments include a network computing device receiving such information and performing negotiations for CRS service with the wireless device only if the wireless device indicates CRS functional capability.
Patent WO-2021169909-A1 (WO)
Title: 信息检测、信息发送方法、终端和网络设备
Inventor: LI GEN
IPC: H04L1/00
Filed: 2021-02-22
Abstract: 本发明实施例提供一种信息检测、信息发送方法、终端和网络设备，所述信息检测方法包括：在候选PDCCH组集合中进行信息的盲检；所述候选PDCCH组集合是根据多个搜索子空间中每个所述搜索子空间的候选PDCCH集合确定的。
Patent WO-2021203855-A1 (WO)
Title: Disposable flushing and suction drainage tube and using method thereof
Inventor: GUO DONGLIANG
IPC: A61M25/14
Filed: 2021-02-23
Abstract: A disposable flushing and suction drainage tube and a using method thereof, relating to the technical field of medical instruments. The flushing and suction drainage tube comprises a flushing tube (1), a suction tube (2), and a mounting base (3). The flushing tube (1) and the suction tube (2) are respectively mounted at one end of the mounting base (3), and an air connector (4) and a water connector (5) are mounted at the other end; the mounting base (3) comprises a tube body base (31) and a control base (32), the flushing tube (1) and the suction tube (2) are mounted at one end of the tube body base (31), and the other end is detachably connected to the control base (32). The disposable flushing and suction drainage tube can achieve control of suction for the suction tube (2) by means of a negative pressure adjusting opening (6) on the mounting base (3); opening, closing, and water flow of the flushing tube (1) can be controlled by means of a water control switch (324) on the mounting base (3), the position of the negative pressure adjusting opening (6) is close to the position of the water control switch (324), one-hand operation is facilitated, switching between flushing and drainage and the flow of drainage can be controlled, and the operation is simple.
Patent WO-2021238314-A1 (WO)
Title: Condenser, and high-and-low-beam integrated vehicle lamp module
Inventor: ZHU HE
IPC: F21S41/00
Filed: 2021-02-26
Abstract: Disclosed is a condenser and a high-and-low-beam integrated vehicle lamp module. The condenser comprises at least one light incident portion (1), a light-transmitting portion (2) and a light emergent portion (3), wherein a 50L dark area light shape forming structure (41) is formed on the light-transmitting portion (2); the 50L dark area light shape forming structure (41) protrudes out of a surface of the light-transmitting portion (2) and has a slope surface (411); and the distance from the slope surface (411) to the surface of the light-transmitting portion (2) gradually increases from a position close to the light incident portion (1) to the light emergent portion (3). Since the 50L dark area light shape forming structure (41) protrudes out of the surface of the light-transmitting portion (2) and has the slope surface (411), in a high-beam illumination mode, some light is emitted from the 50L dark area light shape forming structure (41) to a 50L test point, such that the light emitted to the 50L test point is increased to achieve uniform transition of isophotes and generate no dark spots, thereby improving the uniformity of the high-beam light shape.
Patent WO-2021179930-A1 (WO)
Inventor: Jiang Senlong
IPC: H02M3/158
Filed: 2021-03-01
Abstract: Disclosed are a power supply conversion circuit and a power supply conversion method, capable of improving the efficiency of power supply conversion. The power supply conversion circuit comprises a primary transformer coil, a secondary transformer coil, and a first direct current conversion circuit; the primary transformer coil is coupled to the secondary transformer coil, and the secondary transformer coil is connected to the first direct current conversion circuit; the first direct current conversion circuit is connected to an electricity load; the primary transformer coil is used for generating an electromagnetic field according to an initial voltage inputted to the primary transformer coil and coupling the electromagnetic field to the secondary transformer coil; the secondary transformer coil is used for generating an induced current by means of the electromagnetic field, generating a secondary output voltage according to the induced current, and transmitting the secondary output voltage to the first direct current conversion circuit; the first direct current conversion circuit is used for adjusting the secondary output voltage on the basis of a preset demand voltage of the electricity load to obtain a target voltage.
Patent WO-2021180031-A1 (WO)
Inventor: OUYANG HUI
IPC: A61P3/06
Filed: 2021-03-08
Abstract: La présente invention concerne le domaine de la médecine chinoise traditionnelle, et concerne la préparation d'un polysaccharide homogène dans un extrait d'eau de Pueraria lobata et l'activité de réduction des lipides de celui-ci. Dans la présente invention, le polysaccharide homogène QL est isolé et obtenu à partir de Pueraria lobata, un matériau médicinal authentique de Jiangxi. Des expériences in vivo ont confirmé que la Pueraria lobata homogène a une activité de réduction des lipides significative, réduit de manière significative la teneur en triglycérides sériques et l'indice du foie, et peut être utilisée pour développer des médicaments potentiellement sûrs et efficaces pour la réduction des lipides.
Patent WO-2021180151-A1 (WO)
Title: 香槟塔型多级节流控制阀
Inventor: WANG WEI
IPC: F16K47/04
Filed: 2021-03-11
Abstract: 提供了一种可应用于高压差介质降噪抗汽蚀破坏的香槟塔型多级节流控制阀，包括阀体（10）、阀盖（20）、节流套（30）及阀芯（40），节流套（30）的套腔外形呈两层以上的阶梯孔状，而阀芯（40）外形呈两层以上的与节流套（30）同轴的阶梯轴状，且阀芯（40）处轴肩（41）数目少于或等于节流套（30）套腔的孔肩（31）数目，从而使得轴向上的每组阀芯（40）处轴肩（41）均能与相应节流套（30）处孔肩（31）形成密封面配合；节流套（30）的孔肩（31）和/或阀芯（40）的轴肩（41）处轴向的或斜向的开设有流道槽（a）。香槟塔型多级节流控制阀结构紧凑简洁且动作可靠度高，降低了阀门的加工难度及成本。
Patent WO-2021232908-A1 (WO)
Inventor: WU YIJINGZHAO
IPC: F16M11/04
Filed: 2021-03-15
Abstract: 一种显示器支撑装置，包括支撑主体（3）、用于安装显示器的安装部（2）、以及用于连接安装部（2）和支撑主体（3）的快拆机构（4），快拆机构（4）包括设置于安装部（2）的插块（6）和设置于支撑主体（3）的插槽（7），插块（6）具有插块主体（9）和与插块主体（9）相连接的弹性片（8），弹性片（8）设置成在施力于的弹性片（8）时相对于的插块主体（9）可变形使得插块（6）的厚度减少，便于插块（6）从插槽（7）中脱离，以实现显示器的拆卸，弹性片（8）的底端与插块主体（9）的底端相连接，弹性片（8）的顶端为操作端，操作端设置仿形结构（29），仿形结构（29）具有预设粗糙度。通过快拆机构（4），实现更少的零件且更快速的单手操作；收纳机构，便于收纳线缆和扳手；线盖机构，操作简单，固定可靠不易脱落，实现线缆的收纳和保护。
Patent WO-2021185366-A1 (WO)
Title: Hinge and refrigeration apparatus
Inventor: LI YANPING
IPC: E05D5/14
Filed: 2021-03-19
Abstract: Disclosed in the present application are a hinge and a refrigeration apparatus. The hinge comprises: a hinge shaft which is arranged vertically, wherein a first hinge seat comprises a first mounting plate and a first sleeve, with the first sleeve being rotatably connected to the hinge shaft so as to enable the first sleeve to rotate around the hinge shaft, and the lower end of the first sleeve being provided with a first slope which is inclined downwards; and a second hinge seat is located below the first hinge seat and comprises a second mounting plate and a second sleeve, with the second sleeve being fixed on the hinge shaft, the upper end of the second sleeve being provided with a second slope which is inclined upwards, and the first slope abutting against and matching the second slope so as to make the first sleeve move from a first position to a second position in the direction away from the second sleeve or move from the second position to the first position in the direction close to the second sleeve when rotating around the hinge shaft.