baber/WOPTO huggingface dataset:
Patent WO-2022006754-A1 (WO)
Inventor: FANG LI
IPC: G09G3/34
Filed: 2020-07-07
Abstract: 一种显示控制装置（100）及其确定像素点亮度的方法，以解决相关技术中存在的问题。显示控制装置（100）包括一个或多个集成电路：显示器主控电路（101），用于接收图像视频信号，并根据图像视频信号确定显示器上每一像素点对应的初始透过率以及初始亮度；第一调整电路（102），用于针对背光板上的每一背光区，根据该背光区对应的图像区域的目标灰度值调整该背光区的光强；处理单元（103），用于根据每一背光区调整后的光强确定所述显示器上每一像素点对应的亮度；第二调整电路（104），用于针对显示器上的每一像素点，根据该像素点对应的亮度确定该像素点的透过率，使得所述显示器上的每一像素点对应的亮度和透过率的乘积，与该像素点的所述初始亮度和所述初始透过率的乘积相等。
Patent WO-2022021060-A1 (WO)
Inventor: LIU YANG
IPC: H04B7/185
Filed: 2020-07-28
Abstract: The present application relates to a reception indicating method and apparatus, and a reception control method and apparatus. The reception indicating method comprises: determining an area corresponding to a wave beam to be turned off by a network device in the sky, and time information for turning off the wave beam; and sending the time information to a terminal in the area. According to the embodiments of the present application, by sending the time information to the terminal, the terminal can, according to the time information, determine at what time period the wave beam in the area is to be turned off, and then during the time period, stops receiving a downlink wave beam signal, stops sending an uplink wave beam signal, and stops detecting a wave beam signal, thereby avoiding unnecessary power consumption and saving energy of the terminal.
Patent WO-2021258503-A1 (WO)
Title: 一种流体喷射的可视化立体动态3d检测装置
Inventor: WANG YUN
IPC: G01B11/24
Filed: 2020-08-04
Abstract: 一种流体喷射的可视化立体动态3D检测装置和检测方法，装置包括：喷丸系统、拍摄系统、样品台系统、样品传递机构和扫描分析系统；样品台系统包括一号夹板（18）和二号夹板（20），一号夹板（18）和二号夹板（20）相对设置，一号夹板（18）上从上至下设有若干第一隔板槽，二号夹板（20）上从上至下设有若干第二隔板槽，若干第一隔板槽与若干第二隔板槽一一对应，相对应的第一隔板槽与第二隔板槽形成隔板槽组，样品可插入并卡设在隔板槽组上；样品传递机构用于在样品台系统上取放样品，并能够将样品传递至扫描分析系统；扫描分析系统包括扫描仪（4）和分析仪（9）；由此能够有效地采集喷丸过程中的数据，通过对不同高度样品的数据采集，拟合出立体的喷丸情况。
Patent WO-2021042971-A1 (WO)
Inventor: TIAN YANXIU
IPC: A61B5/00
Filed: 2020-08-17
Abstract: 一种表面肌电信号处理方法、装置和可穿戴设备，涉及智能可穿戴设备技术领域。该表面肌电信号处理方法，包括：获取表面肌电信号（101）；将表面肌电信号导入核函数中做等距积分处理，获得判定信号（102）；在判定信号大于预定阈值的情况下，确定判定信号对应的表面肌电信号处于动作段。通过这样的方法，能够先对表面肌电信号进行基于核函数的处理，在等距积分后得到判定信号，根据判定信号来确定是否处于动作段，从而减小了动作段检测对阈值设定的依赖，提高了动作段检测的准确性。
Patent WO-2021189760-A1 (WO)
Title: 一种脚趾形轨道梁及跨座式单轨交通系统
Inventor: WU NONG
IPC: E01B25/10
Filed: 2020-08-21
Abstract: 本发明公开了一种脚趾形轨道梁及跨座式单轨交通系统，其包括：依次首尾连接的梁体；第一翼缘板，其连接所述梁体底部一侧；第二翼缘板，其连接所述梁体底部另一侧；连接位，其设置在所述第一翼缘板和/或第二翼缘板上，用于连接轨道枕块。本发明无需在隧道内设置支座、锚箱等结构，既可大幅度缩小隧道断面，降低工程造价，又可避免所有荷载集中作用于隧道底部，有效均匀分散隧底受力。
Patent WO-2022000738-A1 (WO)
Inventor: LU QIWEI
IPC: G06F3/0354
Filed: 2020-08-25
Abstract: A power driving circuit of an intelligent pen, relating to the technical field of intelligent pens, and comprising an interface terminal, a voltage transformation circuit, and a processor power interface. The interface terminal comprises a first port, a second port, a third port and a fourth port. The first port is used for providing a high-level power signal, and the first port is sequentially connected to a first resistor and a first inductor to form a high-level supply point. The fourth port provides a ground connection signal, and the fourth port is grounded by means of a second inductor. The voltage transformation circuit comprises an input end and an output end. The input end is connected to the high-level supply point. The voltage transformation circuit carries out level conversion on the high-level power signal at the high-level supply point to form a conversion voltage, and the conversion voltage is output at the output end. The processor power interface is used for receiving the conversion voltage output by the output end, to provide power input for the intelligent pen.
Patent WO-2021139175-A1 (WO)
Inventor: LUO LIN
IPC: G06K9/20
Filed: 2020-08-27
Abstract: L'invention concerne un procédé de reconnaissance de caractères de fiche de travaux de puissance électrique basée sur un réseau neuronal convolutif, se rapportant à un procédé de reconnaissance de caractères. À l'heure actuelle, la reconnaissance de caractères d'une fiche de travaux de puissance électrique n'est pas claire. Le procédé de la présente invention comprend les étapes consistant à : construire un modèle de réseau neuronal convolutif avec seulement trois couches de convolution, aucune couche de regroupement et aucune couche complètement reliée, réaliser un apprentissage pour obtenir une fonction de mappage non linéaire, et améliorer un rapport signal sur bruit de crête d'une image ; utiliser un procédé de calcul de caractéristiques d'écriture manuscrite pour obtenir respectivement des caractéristiques de course imaginaire, des caractéristiques de signature de trajet et des caractéristiques dans 8 directions de caractères d'image d'une fiche de travaux de puissance électrique ; et construire un modèle de réseau neuronal convolutif intégré avec six couches convolutives, cinq couches de regroupement et une couche complètement reliée, et en association avec les caractéristiques de course imaginaire, les caractéristiques de signature de trajet et les caractéristiques dans 8 directions, réaliser un apprentissage pour obtenir un modèle de reconnaissance de caractères. Selon la présente solution technique, l'excellente capacité d'apprentissage de caractéristiques spatiales d'un réseau neuronal convolutif est utilisée, et un procédé d'amélioration d'image basée sur le réseau neuronal convolutif et un procédé de reconnaissance de caractères basée sur le réseau neuronal convolutif sont utilisés, de sorte que la précision de la reconnaissance de caractères d'image d'une fiche de travaux de puissance électrique soit améliorée.
Patent WO-2021139177-A1 (WO)
Title: Image augmentation method and apparatus, computer device, and storage medium
Inventor: YE MING
IPC: G06K9/62
Filed: 2020-08-27
Abstract: Provided are an image augmentation method and apparatus, a computer device, and a storage medium. The method belongs to the technical field of artificial intelligence. The method comprises: receiving an image augmentation request; determining whether an image augmentation task set simultaneously includes a GPU augmentation task and a non-GPU augmentation task; if so, acquiring sample images from a sample library, and distributing the sample images to a preset CPU; storing intermediate processing data sent by the CPU in an intermediate data set; acquiring the intermediate processing data from the intermediate data set, and distributing the intermediate processing data to a GPU; and storing first augmented image data, sent by the GPU, in a preset augmented data set, and sending the augmented data set to a model training server.
Patent WO-2021103705-A1 (WO)
Title: 一种效果组件通用模块及具有其的舞台灯
Inventor: JIANG WEIKAI
IPC: F21W131/406
Filed: 2020-08-27
Abstract: 一种效果组件通用模块及具有其的舞台灯，效果组件通用模块包括效果组件以及用于安装效果组件的安装板（100），安装板（100）至少一侧设有用于与灯头侧板（200）连接的连接件（300），且连接件（300）与安装板（100）可拆卸连接。用于安装效果组件的安装板（100），通过连接件（300）与灯头侧板（200）实现可拆卸连接，通过更换不同规格的连接件（300），可以实现将使用同一规格的安装板（100）的效果模组安装到不同规格的舞台灯上，避免了通过改变安装板（100）的规格来适应不同规格的舞台灯，实现了效果组件模块通用化。
Patent WO-2021057400-A1 (WO)
Inventor: HU FEI
IPC: G02B27/01
Filed: 2020-08-31
Abstract: Disclosed is a driving tool (100), comprising a head-up display assembly (1), wherein the head-up display assembly (1) comprises a head-up display screen (30); the head-up display screen (30) is attached to an inner side of an attaching surface of a windshield (20), and is used for reflecting image light emitted towards the windshield (20); and the head-up display screen (30) is sequentially provided with a functional layer (35), a reflecting layer (37), and a protective layer (39) from the windshield (20) towards a driving position. The functional layer (35) comprises a plurality of prism microstructures (351) protruding from the inner side of the attaching surface of the windshield (20); the reflecting layer (37) is at least attached to lower inclined surfaces (3513) of the prism microstructures (351); the reflecting layer (37) reflects the image light in the direction of the driving position; and the protective layer (39) covers the reflecting layer (37) and the functional layer (35). A main visual image and a ghosting virtual image of the incident image light can be separated, such that the ghosting problem of head-up display can be effectively solved.
Patent WO-2021047499-A1 (WO)
Title: Instrument and method for extracting and detecting nucleic acids
Inventor: YANG XING
IPC: C12M1/42
Filed: 2020-09-08
Abstract: Provided is a device for extracting and detecting nucleic acids, comprising one or more sample receiving modules, one or more lysing modules, one or more extraction modules of nucleic acids, one or more amplification modules of nucleic acids, and a detection module. Also provided is an instrument for diagnosing a molecule in vitro comprising the device for extracting and detecting nucleic acids and an automatic control system. Further provided is an in vitro diagnosis method by means of performing extraction and amplification of nucleic acids in a sample using the device for extracting and detecting nucleic acids.
Patent WO-2022021559-A1 (WO)
Inventor: LIU MINGGUAN
IPC: B23Q11/00
Filed: 2020-09-15
Abstract: An automated device for material cutting machining, comprising a base (1). Four corners of the base (1) are fixedly connected to a support (2); the support (2) is fixedly connected to a fixed plate (3); a workbench (10) is provided above the base (1); a slidable cutting assembly is provided below the fixed plate (3); four corners of the bottom surface of the workbench (10) are fixedly connected to posts (11); the upper surface of the workbench (10) is fixedly connected to a clamping assembly (12); the left side of the workbench (10) is provided with a feeding assembly; and the right side of the workbench (10) is provided with a discharge conveying assembly. The present application solves the problems that the existing devices for material cutting machining has low cutting efficiency and cannot meet quality requirements in terms of cutting precision, thus reducing product quality, and that manual feeding and discharging is time-consuming and laborious. The structural design is reasonable, the automatic operation is achieved, workpieces can be machined accurately, such that the cutting efficiency and the production efficiency are improved, the products meet quality requirements, and the technical effect of saving time and labor is achieved.
Patent WO-2021212740-A1 (WO)
Title: 一类具有吲哚啉骨架的化合物、制备方法及其医药用途
Inventor: YOU QIDONG
IPC: A61P29/00
Filed: 2020-09-25
Abstract: 一类具有吲哚啉骨架的化合物、制备方法及其医药用途。提供的含吲哚啉骨架的化合物可以干扰Keap1-Nrf2相互作用，激活Nrf2及下游因子，降低细胞炎症因子和增强细胞抗氧化能力，从而减轻炎性损伤，具有潜在的抗炎活性，可用于制备成抗炎药物用于众多炎症相关疾病的炎性损伤，包括心肌炎，慢性阻塞性肺疾病(COPD)、阿尔茨海默症、帕金森、动脉粥样硬化、慢性肾脏疾病(CKD)、糖尿病、肠部炎症、类风湿性关节炎等。
Patent WO-2021093474-A1 (WO)
Title: Lawn mower navigation method and apparatus, and lawn mower
Inventor: HE MINGMING
IPC: G05D1/02
Filed: 2020-09-25
Abstract: A lawn mower navigation method and apparatus, and a lawn mower. The method comprises: receiving a satellite-based positioning signal of a location point on a travel path (S31); determining, according to the satellite-based positioning signal, whether the location point is a signal quality turning point (S32); and if the location point is the signal quality turning point, comparing the distances from the location point to planned paths, and taking the planned path having the shortest distance as a target travel path, the planned path being formed by a plurality of ordered location points (S33). The present method has the advantages of high mowing efficiency and strong continuity; moreover, the boundary of a shadow area can be effectively determined by providing a signal quality turning point, and effective data is provided for the determination of the boundary of an unmowed area, thereby ensuring minimum path repetition and maximum coverage.
Patent WO-2021169285-A1 (WO)
Inventor: ZHU BO
IPC: H04L29/08
Filed: 2020-09-28
Abstract: Disclosed is a method for transferring a file to a VMWare virtual machine, comprising: creating, for a VMWare virtual machine, a first HTTP REST interface for writing an external file to the VMWare virtual machine; encapsulating a second HTTP REST interface for a proxy of noVNC, wherein the second HTTP REST interface is used to call the first HTTP REST interface to perform file stream transfer; creating a file upload node on a display interface of noVNC, such that noVNC transfers to the proxy, via the file upload node, a file awaiting transfer in the form of a file stream; and causing the proxy to transfer, via the second HTTP REST interface and the first HTTP REST interface, the file to the VMWare virtual machine in the form of a file stream. Further disclosed are an apparatus for transferring a file to a VMWare virtual machine, a device, and a medium. The invention enables files to be transferred to a VMWare virtual machine without making any intrusion of the virtual machine.
Patent WO-2021063381-A1 (WO)
Title: Atrial septostomy device
Inventor: ZHOU QINGLIANG
IPC: A61B17/3205
Filed: 2020-09-30
Abstract: An atrial septostomy device, comprising a handle assembly (3-8), a support assembly which extends toward a far side from the handle assembly (3-8), and a septostomy assembly (3-3) which is disposed on the support assembly. The septostomy assembly (3-3) comprises a cutting head (3-3) having a blade portion, and the cutting head (3-3) may switch between a retracted configuration and an unfolded configuration. The radial size of the cutting head (3-3) in the retracted configuration is smaller than the radial size of the cutting head (3-3) in the unfolded configuration, and the switching of the cutting head (3-3) between the retracted configuration and the unfolded configuration is achieved by using the support assembly.
Patent WO-2021083321-A1 (WO)
Title: 一种通信方法及设备
Inventor: YU FANG
IPC: H04W28/24
Filed: 2020-10-30
Abstract: 本发明实施例公开一种通信方法及设备，包括：确定QoS流对应的第一CU-UP和UPF网元，第一CU-UP所属的接入网设备支持至少两个CU-UP；确定该QoS流在第一CU-UP和UPF网元之间传输的第一PDB；向接入网设备发送第一PDB，第一PDB用于接入网设备调度空口资源。本发明实施例，在确定QoS流对应的CU-UP之后，可以将QoS流对应CU-UP的PDB发送给RAN设备。
Patent WO-2021109780-A1 (WO)
Inventor: LIU XIAN
IPC: G03B21/16
Filed: 2020-11-04
Abstract: 一种通风板、通风栅架（100）和投影设备（200），通风栅架（100）设置于投影设备（200），通风栅架（100）包括框体（10）、多个第一遮挡件（20）和多个第二遮挡件（30），框体（10）开设有多个通风孔（11），每个第一遮挡件（20）与框体（10）连接并向框体（10）的一侧延伸，每个第一遮挡件（20）遮挡一个通风孔（11），每个第二遮挡件（30）与框体（10）连接并向框体（10）的另一侧延伸，每个第二遮挡件（30）遮挡一个通风孔（11）。通风栅架（100）和投影设备（200）通过在框体（10）开设通风孔（11）来解决散热问题，并且将第一遮挡件（20）和第二遮挡件（30）设置于框体（10），使得每一个通风孔（11）均由一个第一遮挡件（20）和一个第二遮挡件（30）进行遮挡，能够有效地防止外界硬物直接穿过通风孔（11）进入投影设备（200）内部，从而保证了散热和防护等级均符合要求。
Patent WO-2022099518-A1 (WO)
Inventor: CHEN YUCHAO
IPC: G01N1/34
Filed: 2020-11-11
Abstract: 一种分离装置和分离方法，包括分离芯片组件(1)、真空系统(50)、变频模块(40)和控制器(60)。分离芯片组件(1)包括分离芯片(10)、第一振动件(20)和第二振动件(30)，分离芯片(10)包括样本池(13)、位于样本池(13)两侧的第一过滤膜(14)和第二过滤膜(16)、第一腔室(15)和第二腔室(17)。第一振动件(20)固定于第一过滤膜(14)和第二过滤膜(16)，第二振动件(30)固定于第一腔室(15)及第二腔室(17)的外表面。变频模块(40)用于控制真空系统(50)交替地在第一腔室(15)和第二腔室(17)中产生负压。控制器(60)用于在真空系统(50)停止在第一腔室(15)中产生负压时，控制第一振动件(20)和第二振动件(30)振动；还用于在真空系统(50)停止在第二腔室(17)中产生负压时，控制第一振动件(20)和第二振动件(30)振动。
Patent WO-2021098590-A1 (WO)
Inventor: YANG RONGGUANG
IPC: A61B5/05
Filed: 2020-11-13
Abstract: A biological test strip module (310, 410) and an electronic device (100, 101, 210, 300, 400). The biological test strip module (310, 410) comprises a first biological test strip (301), a second biological test strip (302), and a fixing support (303, 402); the first biological test strip (301) and the second biological test strip (302) are spaced by a first distance in a first direction; both the first biological test strip (301) and the second biological test strip (302) comprise at least one bio-enzyme; the at least one bio-enzyme is used for measuring at least one physiological parameter; the fixing support (303, 402) is attached to one side of the first biological test strip (301); the fixing support (303, 402) comprises a first through hole (30311) and a second through hole (30312); the first through hole (30311) exposes part or all of the first biological test strip (301); the second through hole (30312) exposes part or all of the second biological test strip (302). According to the biological test strip module (310, 410), physiological parameters that can measured by the biological test strip module (310, 410) are increased. When the biological test strip module (310, 410) is used by a user (220), the user (220) can test physiological parameters by means of the biological test strip module (310, 410), thereby meeting the requirements of the user (220) for physiological parameter measurement.
Patent WO-2021227411-A1 (WO)
Title: Micro-bubble generating device
Inventor: SUN JIHUI
IPC: B01F3/04
Filed: 2020-11-13
Abstract: A micro-bubble generating device, comprising a blower mechanism and a microporous aerator (1), and further comprising a stirring mechanism. The blower mechanism is composed of a fan (2) and an air pipe (3). The fan (2) communicates with the microporous aerator (1) by means of the air pipe (3). The stirring mechanism is composed of an agitator (4) and a driving unit (5) used for driving the agitator (4) to rotate. The agitator (4) is disposed above the microporous aerator (1), and there is a distance D between the lower surface of the agitator (4) and the upper surface of the microporous aerator (1). The distance between the upper surface of the microporous aerator (1) and the water surface is d, and D is less than 1/2d. The agitator (4) is a radial flow agitator or a mixed flow agitator. The micro-bubble generating device has the advantages of low energy consumption, a good effect and stable operation.
Patent WO-2021104064-A1 (WO)
Inventor: WANG GUANGJUN
IPC: H01M10/0525
Filed: 2020-11-14
Abstract: La présente invention concerne une batterie secondaire et un dispositif comprenant la batterie secondaire. Le matériau actif d'électrode positive de la batterie secondaire comprend un ou plusieurs éléments parmi l'oxyde de lithium-nickel-cobalt-manganèse et l'oxyde de lithium-nickel-cobalt-aluminium et leurs matériaux modifiés; le matériau actif d'électrode négative de la batterie secondaire comprend un composé d'oxyde de silicium et du graphite; le séparateur de la batterie secondaire comprend un substrat et un revêtement; et la batterie secondaire satisfait 7.5≤3460/ED - (D50 - D c  50×0.75 - T/18) ≤ 11.5, et ED ≥ 270 Wh/Kg, 11 μm ≤ D50 ≤ 18,5 μm, et 11 μm ≤ D C 50 ≤ 20 µm. La batterie secondaire selon la présente invention permet d'obtenir des performances de cycle satisfaisantes tout en ayant une densité d'énergie élevée.
Patent WO-2021129242-A1 (WO)
Title: 一种被用于无线通信的节点中的方法和装置
Inventor: LIU JIN
IPC: H04W72/04
Filed: 2020-11-18
Abstract: 本申请公开了一种被用于无线通信的节点中的方法和装置。第一节点发送第一信令；在第一时频资源集合中通过第一天线端口发送第一参考信号和第二信号；所述第一信令被用于指示所述第一时频资源集合中用于所述第一参考信号的时频资源的数量；所述第一参考信号被用于解调所述第二信号；所述第一天线端口符合第一准共址关系，所述第一准共址关系是Q个候选准共址关系中的一个候选准共址关系；所述第一时频资源集合中用于所述第一参考信号的时频资源的所述数量被用于从所述Q个候选准共址关系中指示所述第一准共址关系，所述Q是大于1的正整数。本申请有效地解决了传输配置指示的信令开销问题。
Patent WO-2021243997-A1 (WO)
Inventor: LIU XIANGANG
IPC: E02D29/045
Filed: 2020-12-07
Abstract: A self-sinking-type deep foundation pit retaining wall structure, comprising a cylindrical retaining wall body (1); a ground breaking structure (2) is formed at the bottom of the cylindrical retaining wall body (1), and the cylindrical retaining wall body (1) is suitable for achieving downward ground breaking and sinking by means of the cooperation of the ground breaking structure (2) and the gravity of the cylindrical retaining wall body; and a water pipe (20) running through the cylindrical retaining wall body is cast in the cylindrical retaining wall body (1), and the water pipe (20) is provided with a water outlet (80) located at the lower end face of the cylindrical retaining wall body (1) and a water inlet (81) located at the upper end face of the cylindrical retaining wall body (1). The self-sinking-type deep foundation pit retaining wall structure further comprises resistance increasing devices (4) provided on an outer side wall (3) of the cylindrical retaining wall body (1), and the resistance increasing devices (4) are used for cooperating with a foundation (5), so as to adjust upward resistance applied by the foundation (5) to the cylindrical retaining wall body (1). In addition, further provided is a construction method for an underground space.
Patent WO-2021121199-A1 (WO)
Title: 一种恶意事件信息的获取方法、装置及电子设备
Inventor: MA CHANGCHUN
IPC: H04L29/06
Filed: 2020-12-15
Abstract: 一种恶意事件信息的获取方法、装置、电子设备及存储介质，该方法包括：提取终端中的行为数据；根据行为数据构建事件异构图；其中，事件异构图中的边表示行为事件；从事件异构图中提取恶意事件子图；生成恶意事件子图对应的溯源信息；该方法通过构建的事件异构图自动提取恶意事件子图并生成对应的溯源信息，由于构建的事件异构图能够直观表现出各个行为事件之间的因果关系，有利于溯源分析，因此依据该事件异构图提取的恶意事件子图，能够表征该恶意事件的完整过程，进而提高得到的溯源信息的准确性，也使得该溯源信息更加贴合该恶意事件的实际情况；且该方法可以自动执行，避免使用人工对相关的日志进行分析，效率更高。
Patent WO-2021135969-A1 (WO)
Title: Steam iron
Inventor: NI ZUGEN
IPC: D06F75/10
Filed: 2020-12-17
Abstract: The present invention relates to a steam iron, comprising a water tank, a water pump having a water pump water inlet, a water pump water outlet and an air pressure balancing port, and a water pump water inlet tube, two ends of which are respectively connected to the water tank and the water pump water outlet of the water pump. The steam iron further comprises: an air pressure balancing mechanism located outside the water tank, the air pressure balancing mechanism comprising a protective cover disposed on one side of the water tank; a secondary water tank located in the protective cover, an air pressure balancing hole connecting an inner cavity of the secondary water tank with the outside environment being disposed on top of the secondary water tank; and an air pressure balancing tube, having a first end connected to the air pressure balancing port of the water pump and a second end connected to the secondary water tank, a portion of the air pressure balancing tube proximate to the second end being located in the protective cover. The steam iron simplifies the structure of the water tank by having the air pressure balancing mechanism located outside the water tank.
Patent WO-2022126501-A1 (WO)
Title: 塑料弹簧、泵芯、乳液泵及按压式包装容器
Inventor: CHEN JIABIN
IPC: F16F1/377
Filed: 2020-12-17
Abstract: 一种塑料弹簧、泵芯、乳液泵及按压式包装容器，塑料弹簧包括至少一个弹簧单元，每个弹簧单元包括第一支撑构件、第二支撑构件，及至少两根扭臂。至少两根扭臂设于第一支撑构件和第二支撑构件之间，每根扭臂的两端分别连接第一支撑构件和第二支撑构件；其中，每根扭臂都包括至少一个竖直段，每个竖直段的一端和第一支撑构件或第二支撑构件连接。
Patent WO-2021147617-A1 (WO)
Title: Wheelchair folding frame and wheelchair
Inventor: ZHU WUWEI
IPC: A61G5/10
Filed: 2020-12-28
Abstract: A wheelchair folding frame and a wheelchair. The wheelchair folding frame comprises: a first folding element (10), a second folding element (20), a third folding element (30), and a fourth folding element (40). The first folding element (10), the second folding element (20), the third folding element (30), and the fourth folding element (40) are sequentially and rotatably connected to form a four-connecting rod mechanism. The first folding element (10), the second folding element (20), the third folding element (30), and the fourth folding element (40) are rotatably fitted to allow the wheelchair folding frame to be provided with a first state of being opened and a second state of being folded. When the wheelchair folding frame is transitioning from the first state to the second state, the fourth folding element (40) serves as support base, the first folding element (10) is rotated upwards with where the first folding element (10) and the fourth folding element (40) are connected serving as the center of rotation, and, the second folding element (20) and the folding element (30) are driven by the first folding element (10) to approach the fourth folding element (40). This implements convenient folding and opening of the wheelchair folding frame.