baber/WOPTO huggingface dataset:
Patent WO-2020252717-A1 (WO)
Title: 基于通心络预处理的心肌细胞来源外泌体及其制备方法
Inventor: YANG YUEJIN
IPC: C12N5/077
Filed: 2019-06-20
Abstract: 提供了一种基于通心络预处理的心肌细胞来源外泌体及其制备方法，该方法包括：采用通心络预处理心肌细胞，并对预处理过的心肌细胞行缺氧/复氧处理后收集其分泌的外泌体。所述方法可制备出具有减少心肌微血管内皮细胞凋亡、从而减轻心肌缺血再灌注损伤功效的心肌细胞来源外泌体。
Patent WO-2020015692-A1 (WO)
Title: Traction apparatus and traction ring for traction apparatus
Inventor: JI MING
IPC: A61B17/02
Filed: 2019-07-18
Abstract: A traction apparatus, comprising a clamping portion (2) and a traction portion (1), the traction portion containing a closed traction structure (11), the closed traction structure being made from an elastic material, the clamping portion comprising clamping main bodies (23, 25) and clamping arms (24, 26), the clamping main bodies being capable of passing through a biopsy channel (4) of an endoscope (3), the clamping arms being capable of clamping the closed traction structure. Also disclosed is a traction ring for the traction apparatus, the traction ring being a single closed traction structure or being formed by connecting several closed traction structures, the traction ring being made from an elastic material.
Patent WO-2020107924-A1 (WO)
Title: 冰箱生产线和生产线上冰箱软件升级的方法、介质
Inventor: WU ZONGKE
IPC: G06F8/65
Filed: 2019-07-30
Abstract: 本申请提出一种冰箱生产线和生产线上冰箱软件升级的方法、介质，其中冰箱生产线包括：传送装置，被配置为传送已组装冰箱；扫描装置，被配置为扫描并确认已组装冰箱的识别码和通信模块的地址码；本地服务器，被配置为保存组装冰箱的识别码和通信模块的地址码，并进一步响应于固件升级请求，获取对应识别码的已组装冰箱的固件升级包；已组装冰箱上电后，通信模块接收固件升级包，控制模块根据固件升级包对公共版软件程序进行升级。由此，该冰箱生产线在组装完成冰箱后再向各控制模块烧写程序，避免了控制模块的软件程序与组装冰箱的型号和功能不匹配的问题，提高了组装冰箱的合格率和生产效率。
Patent WO-2020030050-A1 (WO)
Inventor: GUAN PENG
IPC: H04L5/00
Filed: 2019-08-08
Abstract: 本申请提供一种训练天线面板的方法与装置，该方法包括：网络设备确定配置信息，该配置信息包括参考信号资源集合的信息，该参考信号的资源集合用于终端设备的天线面板的训练；该网络设备向该终端设备发送该配置信息；该终端设备通过该参考信号资源集合，对该终端设备具有的天线面板进行训练。通过网络设备为终端设备配置用于训练终端设备的天线面板的参考信号资源集合，可以使终端设备实现对其天线面板的训练，从而有助于终端设备管理其多个天线面板。
Patent WO-2021035673-A1 (WO)
Inventor: JIANG XIN
IPC: G03F7/42
Filed: 2019-08-30
Abstract: A photoresist stripping composition comprising an organic amine and a method is provided. The photoresist stripping composition comprising an organic amine having the following formula (1).
Patent WO-2020228190-A1 (WO)
Title: 像素电路及oled显示面板
Inventor: LI YAN
IPC: G09G3/3225
Filed: 2019-09-04
Abstract: 一种像素电路及OLED显示面板，其像素电路包括：驱动电路（31），发光电路（32），开关电路（33），第一存储电路（34），以及第二存储电路（35）；其中，第二存储电路（35）用于在开关电路（33）的控制下，在第一显示帧的发光阶段进行充电，并在第二显示帧时向驱动电路（31）提供工作电压，以触发驱动电路（31）驱动发光电路（32）发光。
Patent WO-2020057573-A1 (WO)
Inventor: TENG WENXING
IPC: G06F21/45
Filed: 2019-09-19
Abstract: An electronic device control method and apparatus, an electronic device, and a storage medium. The electronic device control method comprises: acquiring a permission configuration request that acts on a first screen (S110); according to the permission configuration request, configuring a second permission range corresponding to a second screen on the basis of a first permission range corresponding to the first screen, the second permission range being smaller than the first permission range (S120); acquiring an operation request (S130); if the operation request acts on the first screen, responding to or rejecting the operation request according to the first permission range (S140); if the operation request acts on the second screen, responding to or rejecting the operation request according to the second permission range (S150).
Patent WO-2021022645-A1 (WO)
Inventor: TIAN YAOQI
IPC: A23L29/00
Filed: 2019-09-27
Abstract: A rice conditioning process and a method for producing instant rice. The conditioning process comprises instantaneous high-temperature fluidization treatment and conditioning solution soaking treatment. The conditioning solution comprises soft rice flour, edible oil, and rice soup. The instant rice is prepared by elutriating rice, conditioning, steaming, and rapidly cooling to form a membrane.
Patent WO-2020134572-A1 (WO)
Inventor: ZHANG XIANFU
IPC: G11C29/12
Filed: 2019-11-04
Abstract: 本申请实施例公开了一种存储器内建自测试电路和对存储器的测试方法，用于降低修改MBIST电路支持的测试算法的开发成本。本申请存储器内建自测试MBIST电路可以包括：算法生成模块，用于按照目标测试指令根据背景数据、预存的测试元素模块和目标测试算法的各个测试元素的构造规则，依次构造各个测试元素；算法执行模块，用于对待测的存储器依次执行各个测试元素。
Patent WO-2021008037-A1 (WO)
Title: 基于A-BiLSTM神经网络的文本分类方法、存储介质及计算机设备
Inventor: ZHAN XIAOJIE
IPC: G06N3/08
Filed: 2019-11-13
Abstract: 一种基于A-BiLSTM神经网络的文本分类方法、存储介质及计算机设备，设计人工智能领域。方法包括：将目标文本进行分词处理，得到N个词语(S102)；计算N个词语中每个词语对应的词向量(S103)；将第t+T个词语对应的词向量、A-BiLSTM神经网络的前向第t个节点至前向第t+T-1个节点的输出作为A-BiLSTM神经网络的前向第t+T个节点的输入，计算目标文本的前向深度特征表示向量(S104)；将第t+T个词语对应的词向量、A-BiLSTM神经网络的后向第t个节点至后向第t+T-1个节点的输出作为A-BiLSTM神经网络的后向第t+T个节点的输入，计算目标文本的后向深度特征表示向量(S105)；根据前向深度特征表示向量和后向深度特征表示向量对目标文本进行分类(S106)。能够解决长短期记忆网络对文本进行分类的准确性差的问题。
Patent WO-2020103899-A1 (WO)
Title: 用于生成图文信息的方法和用于生成图像数据库的方法
Inventor: Qi Tangquan
IPC: G06F16/58
Filed: 2019-11-21
Abstract: 本申请实施例公开了用于生成图文信息的方法和用于生成图像数据库的方法。该用于生成图文信息方法的一具体实施方式包括：从待配图信息中获取标题关键词和内容主题；从图像数据库中选取与标题关键词和内容主题匹配的图像，其中，图像数据库基于图像描述生成；将选取的图像插入待配图信息中，生成目标图文信息。该实施方式有助于降低配图成本。
Patent WO-2020258700-A1 (WO)
Title: 一种开采可燃冰的绿色工艺
Inventor: ZHANG ZHIBING
IPC: E21B43/24
Filed: 2019-11-22
Abstract: 一种开采可燃冰的绿色工艺，包括以下步骤：天然气与饱和盐水经微界面强化装置混合形成微气泡和/或微液滴乳化液；将制备的微气泡和/或微液滴乳化液打入第一竖井，第一竖井上端连接微界面强化装置，下端伸入到可燃冰矿层，可燃冰矿层经微气泡和/或微液滴乳化液融化为气液混合物，气液混合物经第二竖井输送到气液分离装置；经气液分离装置分离后，天然气气体输送至第二储罐，盐水输送至浓缩装置；第二储罐将一部分天然气储存，剩余天然气输送至第一储罐，完成一次循环开采。该开采可燃冰的绿色工艺解决了开采可燃冰过程中的热源流体易凝结现象，达到了开采效率高、开采成本低的效果。
Patent WO-2021102962-A1 (WO)
Inventor: JIANG DONG
IPC: G11C16/26
Filed: 2019-11-29
Abstract: Provided are a decoding method and apparatus, and a control device, wherein same are used for reading and decoding data from a solid-state hard disk. The method comprises: first, a controller acquiring error information corresponding to each of N groups of first data; then, the controller determining a decoding voltage range of a second page according to the error information corresponding to each of the N groups of first data and N groups of first read voltages; and finally, the controller reading second data from the second page according to the decoding voltage range, and decoding the second data. Since known second read voltages can be screened by means of a decoding voltage range, the number of second read voltages needing to be decoded is reduced, thereby reducing the amount of time needed for determining the optimal read voltage.
Patent WO-2020140690-A1 (WO)
Inventor: SHEN XIAODONG
IPC: H04W72/04
Filed: 2019-12-06
Abstract: Embodiments of the present disclosure provide a resource determination method, a resource configuration method, a terminal, and a network side device. The resource determination method comprises: determining a beta_offset set and a beta_offset group in the beta_offset set according to received dynamic signaling; or determining maxCodeRate according to the received dynamic signaling; or determining maxCodeRate according to the location information of the resource transmitting uplink control information, so as to determine the size of the transmission resource occupied by the uplink control information or uplink data information.
Patent WO-2021004001-A1 (WO)
Title: 一种塑胶管内壁复合电导线电极地暖管
Inventor: XU BAOAN
IPC: F24D3/12
Filed: 2019-12-11
Abstract: 一种塑胶管（1）内壁复合电导线电极（2）地暖管，包括塑胶管（1）、管壁电导线电极（2），其中，两根内管壁电导线电极（2）以平行直线、或平行缠绕的方式相互电绝缘对称复合布置于塑胶管（1）内壁的直径上，形成内管壁上两电导线电极（2）之间的水，与两电导线电极（2）并联电连接，构成电导线电极（2）通过水电阻发热的电路；通过对塑胶管（1）内壁复合的两根电导线电极（2）直接通电，利用塑胶管（1）内两个电导线电极（2）之间水的自身电阻导电发热，实现电加热地暖管的安全电热供暖。还公开了一种塑胶管（1）内壁复合电导线电极（2）地暖管的制造方法。
Patent WO-2020119752-A1 (WO)
Inventor: WANG HUAN
IPC: A41D13/12
Filed: 2019-12-12
Abstract: 一种套头式隔离衣的折叠方法，该套头式隔离衣包括大身（1）、头挡部（2）以及设置在大身（1）上部左右两侧的衣袖、设置在大身（1）侧边的绑带，将衣袖、绑带以及头挡部下边缘线以下的部分大身（1）折叠并包裹至大身（1）的正面，头挡部下边缘线（21）裸露在外，下边缘线（21）与大身（1）之间形成供使用者穿戴的入口。该折叠方法将大身和左右衣袖部位等关键区域折叠包裹在里面，不会破坏衣服整体的无菌性，减少和避免交叉感染，在穿衣时只需要将手放入头挡部的下边缘线与大身背面之间形成的入口后向内沿着衣袖的空间展开，就可以自行完成穿衣动作，穿戴方便。
Patent WO-2020181858-A1 (WO)
Title: Resource transfer method, device, and storage medium
Inventor: WANG JINPING
IPC: G06Q40/02
Filed: 2019-12-13
Abstract: A resource transfer method, a device, and a storage medium, relating to the technical field of data processing. The method comprises: acquiring a plurality of resource transfer paths of a target resource (31); sequentially acquiring, on the basis of a sorting result of the plurality of resource transfer paths, weights of compatibility sets of the respective resource transfer paths (32), wherein the compatibility set of a given resource transfer path is the highest-weighted set among sets, said sets each consisting of mutually compatible paths, and the mutually compatible paths consist of the given resource transfer path and all resource transfer paths that come before said resource transfer path and that do not overlap in time with each other; and designating, from among the compatibility sets of the respective resource transfer paths, a compatibility set having the highest weight as a target compatibility set, and transferring the target resource on the basis of the target compatibility set (33). The method can effectively and accurately transfer weighted resources and improve resource utilization.
Patent WO-2021062954-A1 (WO)
Title: Multifunctional fastener having multiple negative poisson's ratio effects and design method therefor
Inventor: REN XIN
IPC: F16B13/06
Filed: 2019-12-24
Abstract: A multifunctional fastener having multiple negative Poisson's ratio effects, comprising a fastener top (1), a fastener circular tube part (2), and a fastener tail (3). The fastener top (1) is a plurality of evenly distributed arc-shaped concave structures having negative Poisson' ratios. The distance from the outermost side of each arc-shaped concave angle to the outer side of a circular tube is (D3-D2)/2, and the relation between the distance and the outer diameter of the circular tube meets that: D2/20 ≤ (D3-D2)/2 ≤ D2/8, and 2 mm ≤ (D3-D2)/2. Each arc-shaped concave angle θ ranges from 50° to 70°. The number N1 of arc-shaped concave rod members on the fastener top (1) meets that: 9 ≤ N1 ≤ 25. The fastener circular tube part (2) is formed by combining an external circular tube having a negative Poisson's ratio and a support structure having a negative Poisson's ratio. The number N2 of units having negative Poisson's ratios of the external circular tube in the circumferential direction should meet that: N2 ≥ 6, and N2 is an even number. Such a fastener has good fixing and anti-loosening effects. Also provided is a design method for the multifunctional fastener having multiple negative Poisson's ratio effects.
Patent WO-2020238214-A1 (WO)
Title: Energy storage apparatus and split-body solar collector system
Inventor: ZENG ZHIYONG
IPC: F24S20/40
Filed: 2019-12-31
Abstract: Disclosed are an energy storage apparatus and a split-body solar collector system. The energy storage apparatus (10) comprises a housing (100), multiple energy storage tanks (200) provided vertically at an interval within the housing (100), and an electric heater (400) provided within the housing (100) and fixed below the multiple energy storage tanks (200). A fine-toothed comb structure used for fixing all of the energy storage tanks (200) is provided within the housing (100). Provided between adjacent two energy storage tanks (200) is a channel (140) for a heat transfer medium to flow through.
Patent WO-2021146837-A1 (WO)
Inventor: ZHU JIANJIAN
IPC: E21B19/00
Filed: 2020-01-20
Abstract: 一种储能修井机，包括电池模块(4)，储能修井机的修井作业和底盘行走均采用电池模块(4)供电。该修井机通过具有大功率充放电功能的电池供电，解决了井场电力供应不足的问题，满足了作业时的大功率运行的需求，提高了作业效率。通过电池模块的边充边放，将修井作业中下放的势能和行走中的动能转化为储存于电池模块里的电能，电能给修井机修井作业和底盘行走提供所需的动力，实现了修井机的纯电动，克服了现有技术中台上作业单电动，或行走单电动的关键性技术难题。
Patent WO-2020192272-A1 (WO)
Title: Blockchain-based transfer method and system, computing device and storage medium
Inventor: HU DUOFENG
IPC: G06Q20/38
Filed: 2020-01-22
Abstract: A blockchain-based transfer method and system, a computing device and a storage medium. The blockchain-based transfer method comprises: receiving a service processing request, wherein the service processing request carries an identity identifier and service information of a user (202); creating, according to the service request, an intelligent contract corresponding to the service request, and writing the intelligent contract into a blockchain network (204); and where an automatic execution condition of the intelligent contract is met, automatically executing a transfer task to complete the transfer process of the user (206). By means of the processing mode, it is firstly ensured that the intelligent contract is not tampered with, and then in the service processing process, if the automatic execution condition of the intelligent contract is met, the transfer task can be automatically executed, thereby realizing quick transfer of a user, greatly shortening the service processing duration, and improving the working efficiency.
Patent WO-2021159299-A1 (WO)
Title: Touch control display substrate and touch control display apparatus
Inventor: XIAO YUNSHENG
IPC: G06F3/041
Filed: 2020-02-12
Abstract: Provided are a touch control display substrate and a touch control display apparatus. The touch control display substrate is provided with an opening (2), and comprises: a base (11); a display layer (12) located on one side of the base (11); and a touch control layer (13) located on the side of the display layer (12) that is away from the base (11), wherein the touch control layer (13) comprises a plurality of touch control wirings (01) that intersect one another to form a mesh. The plurality of touch control wirings (01) comprise: first touch control wirings (131) extending in a first direction, wherein each first touch control wiring (131) comprises a plurality of first touch control electrodes (1311) that are arranged in the first direction and first connecting portions (1312) for connecting adjacent first touch control electrodes (1311); and second touch control wirings (132) extending in a second direction, wherein each second touch control wiring (132) comprises a plurality of second touch control electrodes (1321) that are arranged in the second direction and second connecting portions (1322) for connecting adjacent second touch control electrodes (1321), and the second connecting portions (1322) intersect with the first connecting portions (1312) in an insulating manner. At least one touch control wiring (01) comprises: two wiring segments (011) that are separated by the opening (2), and at least one bridging line (012) for connecting the two wiring segments (011), wherein the bridging line (012) comprises a surrounding portion (0121) arranged around the edge of the opening (2), and two lead portions (0122) located at two ends of the surrounding portion (0121).
Patent WO-2020173320-A1 (WO)
Title: Image enhancement method and apparatus, and storage medium
Inventor: WANG RUIXING
IPC: G06T5/00
Filed: 2020-02-17
Abstract: Disclosed in embodiments of the present application are an image enhancement method and apparatus, and a storage medium. The embodiments of the present application comprise: obtaining an original image; synthesizing features of the original image to obtain a first illumination image corresponding to the original image, the resolution of the first illumination image being lower than that of the original image; on the basis of the first illumination image, obtaining a mapping relationship for mapping the image into a second illumination image; performing mapping processing on the original image on the basis of the mapping relationship to obtain the second illumination image, the resolution of the second illumination image being the same as that of the original image; and performing image enhancement processing on the original image according to the second illumination image to obtain a target image. According to the solution, the image enhancement efficiency is improved.
Patent WO-2021168739-A1 (WO)
Inventor: WEI ZHAOMING
IPC: A43B13/14
Filed: 2020-02-27
Abstract: Disclosed are a shock absorption and ventilation enhanced shoe sole and a preparation method therefor. The shoe sole comprises a body (10), the body (10) is made of a soft material, at least one layer of a communication-type air passage (101) is provided in the body (10), a plurality of first air holes (102) are provided in a circumferential side face of the body (10), the lower surface of the body (10) is a closed surface, a plurality of second air holes (103) are provided in the upper surface of the body (10), and the plurality of second air holes (103) extend downward and are in communication with the communication-type air passage (101). At least one layer of communication-type air passage (101) is provided in the body (10), and the plurality of first air holes (102) provided in the circumferential side face of the body (10) and the plurality of second air holes (103) provided in the upper surface of the body (10) cooperate, so that air intake and deflation for heat exhaust can be alternately achieved in the process of alternately lifting a foot and treading of a user, thereby preventing heat from accumulating on the foot sole, being beneficial to foot health, reducing foot perspiration, and helping slow down heart rate acceleration; and in addition, the shoe sole can achieve the functions of shock absorption, buffering, ventilation and power assistance, so that the shoe sole is more comfortable to wear.
Patent WO-2021120398-A1 (WO)
Inventor: TANG XUDONG
IPC: B24B49/00
Filed: 2020-03-03
Abstract: 一种车顶焊缝自动打磨系统，包括工业机器人（1）、打磨单元（2）和打磨片消耗监测单元（3），打磨单元（2）安装在工业机器人（1）上，打磨片消耗监测单元（3）和工业机器人（1）电连接；工业机器人（1）带动打磨单元（2）进行焊缝打磨，完成焊缝打磨后，打磨片监测单元对打磨单元（2）上的打磨片进行打磨消耗量检测，与打磨片的初始数据进行比较，当打磨片消耗量超过标定的阈值时，工业机器人（1）自动更换打磨片。通过优化设计的浮动模块，能输出恒定而稳定的压力与扭矩，较好的保证打磨质量；打磨片检测装置可以在线测出砂轮的消耗量，并能实现自动更换打磨片；除尘装置可以采集并清除打磨粉尘，保证了焊缝的整洁美观，还可以避免粉尘散溢到空气中对人体产生影响。
Patent WO-2020192432-A1 (WO)
Inventor: ZHANG RUIZHE
IPC: D21B1/30
Filed: 2020-03-12
Abstract: Disclosed herein is a method for catalytically decomposing a lignocellulosic raw material, comprising: using an organic solvent to pre-treat the lignocellulosic raw material, adding a solid acid catalyst to perform boiling after the pre-treatment, and performing solid-liquid separation after the boiling; washing and sieving the separated solid phase mixture to obtain cellulose and a solid acid catalyst; and concentrating the separated boiling liquid, and recovering the organic solvent, so as to obtain a mixture of saccharides and lignin. The present application uses an organic solvent as a solution to separate a lignocellulosic raw material, and uses a solid acid catalyst in combination to perform a catalytic reaction. By controlling process conditions, three products, i.e. a saccharide liquid, lignin, and cellulose are obtained, the efficient extraction of valuable components in the lignocellulosic raw material is realized, and the recovery rate of the valuable components can be 92 wt% or more. At the same time, the requirement of corrosion resistance of a separation device is reduced, and the solid acid catalyst and the organic solvent can be reused, thereby reducing production costs and environmental pollution, having good application prospects.
Patent WO-2020220881-A1 (WO)
Title: 操作代码的审计方法、装置、设备及计算机可读存储介质
Inventor: WANG WENBO
IPC: G06F21/50
Filed: 2020-03-26
Abstract: 提供一种操作代码的审计方法、装置、设备及计算机可读存储介质，该方法包括步骤：当接收到待操作代码后，计算所述待操作代码在权重指标中的指标分值，其中，所述待操作代码至少对应两个权重指标；获取各个权重指标对应的预设权重值，计算各个所述指标分值和对应所述预设权重值之间的指标乘积；若各个指标乘积之和未在预设指标分值范围内，则确定所述待操作代码未通过审计，并禁止将所述待操作代码发送至预设的生产环境中。
Patent WO-2020253330-A1 (WO)
Inventor: WU TIEJUN
IPC: H04L12/24
Filed: 2020-04-07
Abstract: Provided in the present invention is a method for CPE configuration management. CPE stores information of a first ACS and information of a second ACS; and the information of the first ACS and the information of the second ACS are, for example, an identifier of the first ACS and an identifier of the second ACS. The information of the first ACS and the information of the second ACS may be manually configured, and may also be configured by other ACSs.
Since CPE is preset with the information of the first ACS and the information of the second ACS, CPE may establish sessions with the first ACS and the second ACS, and simultaneously process first configuration information sent by the first ACS and second configuration information sent by the second ACS. Compared to traditional methods that may only process the configuration information of one ACS at a time, the CPE applying the foregoing technical solution may split complex services into a plurality of sub-services, report same to a plurality of ACSs or one ACS, and process the plurality of sub-services concurrently, which thus improves processing efficiency.
Patent WO-2021203428-A1 (WO)
Title: Apparatus and method for unicast, broadcast, and multicast services
Inventor: MOHAMMED MIKAEIL AHMED
IPC: H04W4/06
Filed: 2020-04-10
Abstract: A method for unicast, broadcast and multicast services executable by a user equipment (UE) is provided. The UE transmits an indication message to indicate a first intended service of a first traffic type and a second intended service of a second traffic type to the network. The first traffic type may be unicast traffic, and the second traffic type may be multimedia broadcast/multicast service (MBMS) traffic. The UE receives downlink configuration, which is generated by the network based on the indication message, and receives a downlink frame carrying the first intended service and the second intended service according to the downlink configuration.
Patent WO-2021184461-A1 (WO)
Inventor: WEN YINTANG
IPC: B25J9/16
Filed: 2020-04-13
Abstract: La présente invention concerne une pince à articulation à doigts flexibles à base d'impression 4D et son procédé de commande de suivi de trajectoire. La pince à articulation à doigts flexibles à base d'impression 4D comprend une unité de paume et cinq unités de doigt reliées à l'unité de paume ; chaque unité de doigt comprenant deux articulations à doigts flexibles et deux phalanges, chaque articulation à doigt flexible est divisée en élastomères de cristaux liquides LCE supérieur et inférieur, et les élastomères de cristaux liquides LCE sont utilisés pour réaliser un mouvement de flexion bidirectionnel des unités de doigt. Selon la présente invention, la pince à articulation à doigts flexibles peut être commandée avec précision.
Patent WO-2021022843-A1 (WO)
Inventor: Xiang Shuyuan
IPC: B65G47/91
Filed: 2020-04-27
Abstract: Disclosed is a clamping, picking and placement device for a fiber cylinder, the device comprising a clamping jaw that comprises four vertical rods (1) arranged vertically; a base plate (3) arranged horizontally and provided with four track grooves (4) running from top to bottom, wherein the vertical rods run through the track grooves, and adjacent track grooves form a right included angle therebetween; movable arms (8), wherein the two movable arms are arranged in parallel, the movable arms are provided with slots (15), which are vertically through and length directions of which are parallel to length directions of the movable arms, the tops of the vertical rods are located in the slots, and each movable arm is correspondingly connected to two adjacent vertical rods; a tooth transmission mechanism, wherein a first rack (12) and a second rack (13) are respectively perpendicular and fixed to each movable arm, the first rack and the second rack are arranged in parallel, and the middle of the first rack and the middle of the second rack jointly mesh with a gear (11); and a power member driving one of the movable arms to horizontally and linearly translate.