baber/WOPTO huggingface dataset:
Patent WO-2022047894-A1 (WO)
Inventor: GUO SHUN
IPC: H02K1/06
Filed: 2020-10-13
Abstract: A linear electric motor, comprising a housing (1), a primary (3), and a secondary (7), which forms an air gap (5) with the primary (3), wherein the primary (3) comprises an iron core (31) and a winding (33) wound around the iron core (31); the iron core (31) comprises a yoke portion (311) and a plurality of tooth portions (313), which are provided with permanent magnets (35) in an embedded manner; the magnetic poles of every two adjacent permanent magnets (35) are opposite; each permanent magnet (35) comprises a first permanent magnet (351) and a second permanent magnet (353), which are arranged at an included angle in a spaced manner and are symmetrically distributed with respect to an angular bisector (a) of the included angle, as well as a third permanent magnet (355); the angular bisector (a) of the included angle extends from the vertex (b) of the included angle to the secondary (7) and is perpendicular to a plane where the secondary (7) is located; the first permanent magnet (351) and the second permanent magnet (353) are respectively located at two opposite ends of the third permanent magnet (355); the magnetic poles of the sides of the first permanent magnet (351), the second permanent magnet (353) and the third permanent magnet (355) that are close to the secondary (7) are the same; and the included angle ranges from 0° to 180°. According to the linear electric motor, the volumes of the embedded permanent magnets (35) can be effectively increased, such that a magnetic field on the side of the air gap is significantly increased, thereby increasing the thrust density of the linear electric motor.
Patent WO-2021073543-A1 (WO)
Inventor: HAJRI SALAH EDDINE
IPC: H04W72/04
Filed: 2020-10-14
Abstract: Un procédé de création de rapport d'informations d'état de canal est exécuté dans un système avec un contrôleur central, une pluralité de points d'émission et de réception (TRP), et des équipements utilisateurs (UE) dans un réseau d'accès radio en nuage (CRAN). La présente invention exploite la macro-diversité du CRAN pour résoudre les difficultés de retour de CSI dans des systèmes à nombreuses antennes. Une station de base estime des coefficients d'autocorrélation de canal et des coefficients d'évanouissement de canal à grande échelle, et déduit une configuration de retour de CSI pour les UE. Chacun des UE rapporte ou non un retour de CSI selon la configuration. La station de base prédit des CSI qui ne sont pas rapportées par les UE.
Patent WO-2022082540-A1 (WO)
Inventor: XU XIANG
IPC: H04B7/185
Filed: 2020-10-21
Abstract: Embodiments of the present disclosure relate to establishment of a communicating link. A first device obtains, from a second device, first configuration information concerning a communication link between the second device and a third device. The first device transmits the first configuration information to the third device for establishment of the communication link between the second device and the third device.
Patent WO-2021120835-A1 (WO)
Inventor: YANG MIN
IPC: C07D409/12
Filed: 2020-10-22
Abstract: L'invention concerne le composé contenant de l'azote représenté dans la formule chimique 1, un dispositif électroluminescent organique, et un appareil électronique, se rapportant au domaine technique des matériaux organiques. Le composé contenant de l'azote peut améliorer les performances du dispositif électroluminescent organique.
Patent WO-2022077661-A1 (WO)
Inventor: GAO YUAN
IPC: H04R1/02
Filed: 2020-11-07
Abstract: Disclosed in the present utility model are a screw locking assembly applied to a speaker, and a speaker. The screw locking assembly comprises a mounting steel sheet, flexible connection members and a housing; the mounting steel sheet comprises a body portion and connection lugs connected to the body portion; and each connection lug is provided with a threaded mounting hole penetrating in the thickness direction thereof. The flexible connection members are provided on the connection lugs. The housing is connected to the flexible connection members, and one end of each connection lug provided with the threaded mounting hole is exposed outside the housing. The described solution solves the technical problem that a speaker is easily subjected to force when the speaker is fixed to a terminal by means of the screw locking assembly, causing the separation of steel from plastic.
Patent WO-2022099612-A1 (WO)
Title: Procédé de guidage de passagers au niveau des entrées d'une station de métro
Inventor: JIN XUNENG
IPC: G06Q50/30
Filed: 2020-11-13
Abstract: L'invention concerne un procédé de guidage de passagers à des entrées d'une station de métro. Le procédé comprend : la détermination, en fonction d'un emplacement actuel, d'une ou de plusieurs entrées de station à sélectionner, une distance de déplacement entre chaque entrée de station à sélectionner et l'emplacement actuel se situant dans une plage prédéfinie, et la distance de déplacement étant une distance parcourue depuis l'emplacement actuel à pied ou en bicyclette jusqu'à l'entrée de la station à sélectionner (S102); l'obtention de données de flux de personnes de la ou des entrées de station à sélectionner, d'horaires de métro, et d'un temps d'estimation de l'arrivée au niveau de la ou des entrées de station pour sélection au moyen de différents moyens de transport (S104); et la détermination d'une entrée de station cible en fonction des données de flux de personnes de la ou des entrées de station pour la sélection, des horaires de métro, et du temps d'estimation de l'arrivée au niveau de la ou des entrées de station pour une sélection au moyen de différents moyens de transport, la sélection de l'entrée de la station cible correspondant à différentes normes d'évaluation (S106). Le procédé résout le problème de l'état de la technique selon lequel des passagers ne peuvent pas sélectionner une entrée de station à l'avance en fonction de leurs propres besoins avant d'entrer dans une station de métro.
Patent WO-2021115437-A1 (WO)
Title: 拒接短信发送方法、装置、计算机设备和存储介质
Inventor: TANG CHAO
IPC: H04M1/64
Filed: 2020-12-11
Abstract: 本申请涉及一种拒接短信发送方法、装置、计算机设备和存储介质。所述方法包括：当接收到对通话邀请的拒接指令时，获取拒接短信；根据拒接指令获取网络模式的指示参数；网络模式包括未响应通话邀请时所处的常规网络模式；根据指示参数确定当前所处的网络模式；以及若当前网络模式为常规网络模式，基于常规网络发送拒接短信。
Patent WO-2022126410-A1 (WO)
Title: Low-energy-consumption carbon-enriched cement production system and method for producing cement clinker
Inventor: PENG XUEPING
IPC: F27D15/02
Filed: 2020-12-16
Abstract: A low-energy-consumption carbon-enriched cement production system and a method for producing cement clinker. The system comprises: a raw material preheating and pre-decomposing system, and a smoke chamber (1), a rotary kiln (2) and a cooling machine (3) which are successively in communication with each other, wherein the raw material preheating and pre-decomposing system comprises a decomposing furnace (4) and a pre-heater (5); the cooling machine (3) comprises a first cooling area (301) and a second cooling area (302), the first cooling area (301) comprises a first cooling sub-area (3011) and a second cooling sub-area (3012), mixed gas of pure oxygen and high-concentration carbon dioxide flue gas is introduced into an inlet of the first cooling sub-area (3011), high-concentration carbon dioxide flue gas is introduced into an inlet of the second cooling sub-area (3012), and air is introduced into an inlet of the second cooling area (302), so that the problems of the easiness in air channeling and high energy consumption between the first cooling area (301) and the second cooling area (302) in carbon dioxide enrichment technology of an existing cement kiln are solved.
Patent WO-2022041586-A1 (WO)
Inventor: WEI KANG
IPC: H02M1/00
Filed: 2020-12-18
Abstract: A power factor correction circuit (100). The circuit comprises a boost inductor (L1), a first rectification circuit (110), a first detection circuit (120), a second detection circuit (130), a second rectification circuit (140) and a filter circuit (160), wherein the first rectification circuit (110) is turned on or turned off when a control signal output by an external controller (150) is received, so as to control the power factor correction circuit (100) to work in a critical mode, the control signal being output by the external controller (150) when a first level output by the first detection circuit (120) or a second level output by the second detection circuit is received; the first rectification circuit (110) and the second rectification circuit (140) are used for converting, into a pulsating direct-current voltage, an alternating-current voltage output from an alternating-current power transmission network; and the filter circuit (160) is used for filtering the alternating-current voltage in the pulsating direct-current voltage.
Patent WO-2022088446-A1 (WO)
Inventor: LI MIAO
IPC: H03K17/693
Filed: 2020-12-21
Abstract: A multi-coil coupled single-pole four-throw switch, comprising: an input port (P1), a first output port (P2), a second output port (P3), a third output port (P4), and a fourth output port (P5); a coupled inductive circuit, comprising inductive coils respectively connected to the input port (P1) and each output port; and a transistor control circuit, comprising n-th control circuits respectively connected to the first output port (P2), the second output port (P3), the third output port (P4), and the fourth output port (P5), wherein n is correspondingly one to four in sequence. The transistor control circuit selects, on the basis of a level signal of each control circuit, an output port to achieve conduction to the input port (P1), and configures a load of the output port by using the inductive coil connected to each output port and the control circuits connected to the remaining output ports other than this output port. The multi-coil coupled single-pole four-throw switch can satisfy gating between different circuits, low insertion loss, high isolation, and miniaturization.
Patent WO-2021129814-A1 (WO)
Title: 用于接触器的控制电路及其控制方法
Inventor: SHUANG BING
IPC: H01H47/00
Filed: 2020-12-25
Abstract: 一种用于接触器的控制电路及其控制方法。该控制电路（100）包括：脉冲转换器（20），其被配置成将接通控制信号（310）转换为连续脉冲信号（311）；第一控制器（40），其被配置成响应于检测到从脉冲转换器（20）接收的连续脉冲信号（311）的消失，而在第一时刻产生第一分断控制信号（332）；第二控制器（50），被配置成响应于检测到从脉冲转换器（20）接收的连续脉冲信号（311）的消失，而在第二时刻产生第二分断控制信号（333），其中第一时刻早于第二时刻；以及线圈驱动器（60），其被配置成依据接收的第一分断控制信号（332）来断开励磁线圈（70）的电流，以及在依据第一分断控制信号（332）未断开的情况下，则进一步依据第二分断控制信号（333）来断开励磁线圈（70）的电流，由此实现主触头（80）的分断。
Patent WO-2022141385-A1 (WO)
Title: 一种大视场角的目镜光学系统及头戴显示装置
Inventor: CAO HONGPENG
IPC: G02B3/08
Filed: 2020-12-31
Abstract: 一种大视场角的目镜光学系统及头戴显示装置，目镜光学系统包括从人眼观察侧到微型图像显示器（IMG）侧沿光轴方向共轴依次排列的第一透镜组（D1）、第二透镜组（D2）和第三透镜组（D3），且第一透镜组（D1）、第二透镜组（D2）以及第三透镜组（D3）的有效焦距为正、负、正组合；第一透镜组（D1）包括靠近人眼侧的第一透镜（L1）和远离人眼侧的第二透镜（L2）；第一透镜组（D1）包括至少两个菲涅耳光学面；第一透镜（L1）包括至少一个菲涅耳光学面；第二透镜组（D2）包括与第一透镜组（D1）相邻的第三透镜（L3）；第三透镜（L3）为负透镜；第三透镜组（D3）包括与第二透镜组（D2）相邻的第四透镜（L4）；第四透镜（L4）为正透镜；目镜光学系统在实现其所具有的大视场角、高像质、低畸变、小场曲、小体积指标优势的同时，也极大的减小光学系统的重量，系统像差得到大幅消除。
Patent WO-2021208522-A1 (WO)
Title: In-pipe self-cleaning control method for air conditioning system
Inventor: CUI JUN
IPC: F24F11/67
Filed: 2020-12-31
Abstract: In-pipe self-cleaning control method for an air conditioning system, comprising the following steps: after an air conditioning system has operated for a set period of time, acquiring the inlet/outlet pressure of an indoor heat exchanger (7) and the inlet/outlet pressure of an outdoor heat exchanger (3) (S100); calculating a first inlet/outlet pressure difference on the basis of the inlet/outlet pressure of the indoor heat exchanger (7) (S200); calculating a second inlet/outlet pressure difference on the basis of the inlet/outlet pressure of the outdoor heat exchanger (3) (S300); comparing the first inlet/outlet pressure difference and the second inlet/outlet pressure difference with a first pressure difference threshold and a second pressure difference threshold, respectively (S400); and selectively controlling the air conditioning system on the basis of the comparison result to perform an indoor unit in-pipe self-cleaning mode and/or an outdoor unit in-pipe self-cleaning mode (S500). In the in-pipe self-cleaning control method of the present application, impurities accumulated within a system pipe can be removed, ensuring that the pipe is clean and free of foreign matter on the inside.
Patent WO-2022126803-A1 (WO)
Inventor: TIAN CHENGHAO
IPC: G01N33/68
Filed: 2021-01-05
Abstract: La présente invention concerne un système de traitement entièrement automatique de western blot, comportant un boîtier, et comportant en outre: un agitateur d'incubation monté dans le boîtier; une unité à température constante montée dans le boîtier; une chambre de caisson à membrane configurée pour porter un corps de caisson à membrane et placée sur l'agitateur d'incubation; une unité de pipetage montée sur l'agitateur d'incubation et configurée pour accomplir un pipetage, une addition de liquide et une libération de liquide dans le corps de caisson à membrane; une unité de commande montée dans le boîtier, l'agitateur d'incubation, l'unité à température constante et l'unité de pipetage étant tous reliés à l'unité de commande, et l'unité de commande étant reliée électroniquement à une alimentation sur secteur; et une unité d'interaction homme-ordinateur montée sur la surface du boîtier et reliée à l'unité de commande.
Patent WO-2022147667-A1 (WO)
Inventor: OUYANG TAO
IPC: H04L27/26
Filed: 2021-01-05
Abstract: Procédé et dispositif de communication dans un système avancé d'aide à la conduite. Le procédé fait appel aux étapes suivantes : l'obtention de multiples éléments de données à moduler, lesdites données provenant de multiples sources de données ; la combinaison desdites données en une trame dépendante du support physique (PMD) ; la réalisation d'une modulation à porteuse unique ou d'une modulation à porteuses multiples sur la trame PMD afin d'obtenir un signal de modulation ; et l'envoi du signal de modulation. Des données provenant de différentes sources sont combinées, et les différences entre les modes de modulation sont blindées, de sorte que la communication entre un convertisseur parallèle-série et un convertisseur parallèle-série puisse être compatible avec deux modes de modulation de modulation à porteuse unique et de modulation à porteuses multiples.
Patent WO-2021196853-A1 (WO)
Title: 存储块以及存储器
Inventor: SHANG WEIBING
IPC: G11C11/408
Filed: 2021-01-27
Abstract: 本申请部分实施例涉及半导体技术领域，公开了一种存储块以及存储器。存储块包括至少一个存储模块(100)，每一存储模块(100)包括读写控制电路(101)、列译码电路(123)以及若干个存储阵列(104)，若干个存储阵列(104)划分为第一单元(110)以及第二单元(120)；第一译码选择信号线(CSL1)，电连接列译码电路(123)以及第一单元(110)内的存储阵列(104)；第二译码选择信号线(CSL2)，电连接列译码电路(123)以及第二单元(120)内的存储阵列(104)；第一数据信号线(YIO1)；第二数据信号线(YIO2)。
Patent WO-2021155760-A1 (WO)
Inventor: ZHU TAO
IPC: A61P31/14
Filed: 2021-01-28
Abstract: 本发明提供了一种包含编码2019-nCoV型冠状病毒的至少一个抗原肽或蛋白或其片段、变体或衍生物的编码区的mRNA序列及其组合物。本发明还提供了该mRNA或组合物在制备预防和/或治疗2019-nCoV型冠状病毒感染的药物，尤其是疫苗中的应用。
Patent WO-2021175081-A1 (WO)
Title: 冲泡定位机构以及饮品制备机
Inventor: LAI CHUNMEI
IPC: A47J31/44
Filed: 2021-02-04
Abstract: 本发明目的在于提供一种更加小型化、结构简单的冲泡定位机构及含有该冲泡定位机构的饮品制备机。该冲泡定位机构包括：框体，固定设置在饮品冲泡机的壳体内，顶部具有让饮品原料杯进入的进入通道；限位件，设置在进入通道底端位置处，用于对饮品原料杯进行限位；冲泡仓，可移动地安装在框体上，具有用于容纳饮品原料杯的容纳部；以及驱动部，驱动冲泡仓进行直线移动，其中，限位件位于冲泡仓与过滤构件之间，冲泡仓在驱动部的驱动下朝向过滤构件移动使得饮品原料杯被容纳部容纳而跟随移动，从而让饮品原料杯脱离限位件并到达预定位置。本发明的冲泡定位机构结构紧凑、结构简单，能够更好地实现小型化，也容易维修。
Patent WO-2021164576-A1 (WO)
Inventor: XUE TONGTONG
IPC: C07K14/165
Filed: 2021-02-05
Abstract: 提供了用于抗冠状病毒感染的多肽及其应用，具体而言，提供了抗冠状病毒感染的多肽及其衍生物、立体异构体、药学上可接受的盐或功能等价的变体，编码多肽的核酸分子，制备它们的方法，以及包含它们的药物组合物（例如药物制剂）。进一步提供了该多肽及其衍生物、立体异构体、药学上可接受的盐或功能等价的变体在预防和/或治疗冠状病毒感染相关疾病中的用途，以及在制备预防和/或治疗冠状病毒感染相关疾病的药物中的用途。
Patent WO-2022134309-A1 (WO)
Title: Display device, manufacturing method therefor and use thereof
Inventor: ZHANG ZHIKUAN
IPC: H01L33/50
Filed: 2021-03-04
Abstract: The present invention relates to a display device, a manufacturing method therefor and a use thereof. The display device comprises a blue light backlight, a first polarizer, a quantum dot light-emitting layer, a liquid crystal layer and a second polarizer which are stacked in sequence, wherein the quantum dot light-emitting layer comprises at least two display units, each display unit comprises a first light-emitting unit, a second light-emitting unit and a third light-emitting unit which are arranged side by side in sequence, the first light-emitting unit is composed of a first transparent conductive layer and a green light quantum dot deposition layer which are stacked, the second light-emitting unit is composed of a second transparent conductive layer and a red light quantum dot deposition layer which are stacked, the first transparent conductive layer and the second transparent conductive layer are close to the first polarizer, and the third light-emitting unit is a third transparent conductive layer.
Patent WO-2021180039-A1 (WO)
Inventor: GAO MING
IPC: B65G1/137
Filed: 2021-03-08
Abstract: A method and device for controlling a carrying robot (100), a vertical bracket and the carrying robot (100), the carrying robot (100) comprising the vertical bracket and a carrying device, wherein the vertical bracket comprises a fixed upright column frame (10) and a movable upright column frame (20); the carrying device is movably disposed on the movable upright column frame (20); the movable upright column frame (20) is movably disposed on the fixed upright column frame (10); and the carrying device is used for carrying goods. The method for controlling the carrying robot (100) comprises: receiving a motion command; and according to the motion command, driving the carrying device to move relative to the movable upright column frame (20), and/or driving the movable upright column frame (20) to move relative to the fixed upright column frame (10). Therefore, the carrying robot (100) may, by controlling the carrying device to move relative to the fixed upright column frame (10), increase the height, and also may control the movable upright column frame (20) to ascend relative to the fixed upright column frame (10) so as to increase the height, so that the liftable height of the carrying device is equal to the sum of the distance travelled of the fixed upright column frame (10) and the distance travelled of the movable upright column frame (20), the range coverage of the liftable height of the carrying device is wider, and the usage range is wider.
Patent WO-2021190572-A1 (WO)
Title: 净化装置以及净化装置的制造方法
Inventor: LI XIAOFENG
IPC: B01D53/04
Filed: 2021-03-24
Abstract: 本发明提供一种净化装置，其包括壳体、置于所述壳体内的净化模块和寿命提示模块，所述壳体包括主壳体，所述主壳体具有顶部、与所述顶部相对的底部以及连接所述顶部和所述底部的侧壁，所述净化模块置于所述顶部和所述底部之间，所述寿命提示模块包括计时电路板，所述顶部上连接有上盖，所述上盖内侧设置有支撑筋，所述计时电路板支撑在所述支撑筋上以在所述上盖和所述计时电路板之间形成间隙，所述间隙中填充有防水胶，所述计时电路板朝向所述底部的表面涂覆有防水胶；本发明还提供一种净化装置的制造方法。
Patent WO-2021227707-A1 (WO)
Title: Audio synthesis method and apparatus, computer readable medium, and electronic device
Inventor: LIN SHILUN
IPC: G10L13/033
Filed: 2021-04-08
Abstract: The present application relates to the technical field of artificial intelligence and relates to a machine learning technique. The present application specifically relates to an audio synthesis method, an audio synthesis apparatus, a computer readable medium, and an electronic device. The method comprises: obtaining the mixed language text information of text characters comprising at least two language types; according to the at least two language types, performing text encoding processing on the mixed language text information to obtain an intermediate semantic encoding feature of the mixed language text information; obtaining a target timbre feature corresponding to a target timbre body, and according to the target timbre feature, performing decoding on the intermediate semantic encoding feature to obtain an acoustic feature; and performing acoustic encoding on the acoustic feature to obtain an audio corresponding to the mixed language text information. The method solves the problem of timbre jump caused due to language differences in an existing mixed language audio synthesis technique, and can steadily output a natural and smooth mixed language audio having uniform timbre.
Patent WO-2021218614-A1 (WO)
Title: 通用人工智能的体系建立
Inventor: CHEN YONGCONG
IPC: G06N3/08
Filed: 2021-04-12
Abstract: 一种通用人工智能的体系建立的一方面，模仿信息之间的相似性、重复性和临近性，把需求、奖罚和情绪等符号和相关的底层特征存储在一起，作为预置关系网络。机器面对输入信息时，机器通过迭代识别输入信息中的底层特征，并按照同时性存储方法存入记忆。并以这些底层特征为节点，以节点间相似性、重复性和临近性关系为连接关系，建立底层特征和包括需求符号、奖罚符号和情绪符号之间的关系，扩展关系网络。另一方面，机器使用底层特征并通过链式联想激活过程，寻找相关的底层特征，并通过分段模仿的方法，寻找可模仿的经验，并按照趋利避害的原则来重组经验，构成最优响应路径，并采用分段模仿的方法，把最优响应路径迭代分解到底层驱动命令序列。
Patent WO-2021213250-A1 (WO)
Inventor: XU BINBIN
IPC: G06Q20/40
Filed: 2021-04-16
Abstract: Disclosed are a secure business transaction method and apparatus, and an electronic device. In the method, an account business request is acquired, and whether there is a target-type risk in an account corresponding to the account business request is determined by utilizing a first risk management model; and according to a determination result regarding the target-type risk, whether a pre-paid transaction mode or a non-sufficient fund transaction mode is executed for the account business request is determined. Integrated risk situations in a mode similar to an NSF mode can thus be reduced.
Patent WO-2021227773-A1 (WO)
Inventor: TANG CHAO
IPC: H04W24/08
Filed: 2021-04-16
Abstract: 本申请涉及一种无线网络信号测量方法、装置、计算机设备和存储介质。所述方法包括：当5G无线网络处于非连接状态时，接收5G无线网络信号测量指令，所述5G无线网络信号测量指令携带测量配置信息；根据所述5G无线网络信号测量指令获取第一测量周期；根据所述第一测量周期以及所述测量配置信息对所述5G无线网络的网络信号进行测量，得到测量结果；将所述测量结果与预设信号门限进行比较，得到比较结果；根据所述5G无线网络信号测量指令获取第二测量周期；根据所述比较结果对所述第二测量周期进行调整。
Patent WO-2022188241-A1 (WO)
Inventor: ZHAO FENG
IPC: H04B10/50
Filed: 2021-04-20
Abstract: 本发明公开了一种偏振复用单边带信号产生与接收系统，包括：光波产生单元、信号调制单元、驱动信号产生单元、分离与转换单元、MIMO无线链路以及信号采样和处理单元；光波产生单元与信号调制单元连接产生光波；驱动信号产生单元与信号调制单元连接产生驱动信号；信号调制单元将光波分成两路相互正交的偏振光波，并基于单边带调制调制到偏振光波上，得到偏振复用上边带光信号和偏振复用下边带光信号耦合后输出混合信号，混合信号传输至分离与转换单元被分离并转换得到电毫米波信号；电毫米波信号通过MIMO无线链路传输，并进入信号采样和处理单元被转换成数字信号并进行数字信号处理。本发明提高了信号的频谱效率，并能应对信号在光纤传输中的走离效应。
Patent WO-2021227793-A1 (WO)
Title: Three-arm clamp
Inventor: ZHANG QIANG
IPC: A61B90/00
Filed: 2021-04-20
Abstract: Disclosed is a three-arm clamp, which belongs to the technical field of endoscopic medical devices. The three-arm clamp comprises: a clamping assembly (10) and a releasing member (20) connected to each other, wherein the clamping assembly (10) comprises a fixed arm (11), and two movable arms (12) respectively rotatably connected to the fixed arm (11) by means of a hinge pin (101); the proximal end of each movable arm (12) is provided with a first sliding slot (120), and a sliding slot pin (30) is slidably arranged in the first sliding slot (120); the proximal end of the fixed arm (11) is further provided with an inner cavity, and the releasing member (20) is inserted into the inner cavity and connected to the sliding slot pin (30); the proximal end of each movable arm (12) is further provided with an elastic sheet (121); the movable arms (12) and the fixed arm (11) are closed by means of clamping, and the elastic sheets (121) are folded in the inner cavity, in a radial direction of the fixed arm (11), from a connecting end to a free end and abut against the releasing member (20); and the releasing member (20) is separated from the movable arms (12), and the free end of each elastic sheet (121) elastically abuts against the inner wall of the inner cavity. The three-arm clamp can simply, quickly and effectively carry out clamping and suturing of a large defect of the digestive tract and a defect at a site difficult to operate in a minimally invasive endoscopic surgical operation.