baber/WOPTO huggingface dataset:
Patent WO-2019019559-A1 (WO)
Title: Refrigerator
Inventor: YAO JUN
IPC: F25D23/06
Filed: 2018-01-02
Abstract: A refrigerator, comprising: a door body; and a main body (100), which opens on one side, the main body (100) comprising a plurality of heat insulation plates (10) which are independent of each other, the plurality of heat insulation plates (10) including at least a first heat insulation plate (10a), a second heat insulation plate (10b) and a third heat insulation plate (10c), the first heat insulation plate (10a) being vertically provided and the cross section of the first heat insulation plate (10a) being formed in a U shape, the second heat insulation plate (10b) being horizontally provided at the top of the first heat insulation plate (10a) and being spliced with the first heat insulation plate (10a), and the third heat insulation plate (10c) being horizontally provided at the bottom of the first heat insulation plate (10a) and being spliced with the first heat insulation plate (10a). The main body (100) of the refrigerator is formed by splicing a plurality of heat insulation plates (10) which are independent of each other, facilitating the transportation of the refrigerator.
Patent WO-2018133670-A1 (WO)
Title: 丁苯酞-替米沙坦杂合物及其制备方法和用途
Inventor: HUANG ZHANGJIAN
IPC: A61P25/28
Filed: 2018-01-04
Abstract: 一种丁苯酞-替米沙坦杂合物及其制备方法和用途，具体涉及一种式I所示的光学活性的开环型丁苯酞-替米沙坦杂合物或其药学上可接受的盐或酯，它们的制备方法、含有这些化合物的药用组合物以及它们的医药用途，特别是在预防和治疗与神经炎症相关的疾病，包括缺血性脑卒中、阿尔兹海默病、脑外伤、帕金森病、多发性硬化症和抑郁症等方面的应用。
Patent WO-2019015275-A1 (WO)
Title: Two-wire inverse class f power amplifier
Inventor: HUANG HANG
IPC: H03F3/217
Filed: 2018-01-12
Abstract: A two-wire inverse class F power amplifier, comprising an input port (P1), a stabilizing circuit (4), an input matching circuit (3), a GaN transistor (2), a two-wire output matching network (1), and an output port (P2). The two-wire output matching network (1) comprises a pre-matching circuit (11) and a two-wire matching circuit (12); the pre-matching circuit (11) comprises a first microstrip line (111) and a second microstrip line (112); the first microstrip line (111) is connected in series with the second microstrip line (112); a third microstrip line (113) used as a branch of an open circuit is connected to a connection line between the first microstrip line (111) and the second microstrip line (112); an input end of the first microstrip line (111) is an input end of the two-wire output matching network (1). The two-wire matching circuit (12) comprises a fourth microstrip line (121) and a fifth microstrip line (122); the fourth microstrip line (121) is connected in parallel to the fifth microstrip line (122); an output end of the second microstrip line (112) is connected to an input end of the fifth microstrip line (122); an output end of the fifth microstrip line (122) is an output end of the two-wire output matching network (1). The inverse class F power amplifier not only has high-order harmonic controlling and impedance matching functions, but also has a more compact circuit structure.
Patent WO-2018137567-A1 (WO)
Title: 一种极性码的译码方法和装置
Inventor: LUO HEJIA
IPC: H04L1/00
Filed: 2018-01-19
Abstract: 本申请公开了一种极性码的译码方法和译码装置，其中，译码方法包括：终端接收符号序列，该符号序列是基站对控制信息采用Polar码编码并且调制映射后得到，终端对符号序列进行解映射解调后得到编码序列，终端从编码序列选取两个编码子序列，终端对两个编码子序列进行Polar译码，得到信息比特集合，信息比特集合包括下行控制信息DCI和循环冗余校验CRC序列，终端使用终端标识对所述CRC序列进行解扰并且所述终端对所述DCI做CRC校验，若CRC校验通过，得到DCI。通过采用上述译码方法，下行控制信息的盲检次数减少一半。
Patent WO-2019080423-A1 (WO)
Title: Resource value transfer method and apparatus, storage medium, and server
Inventor: LIU HONGYE
IPC: G06Q20/40
Filed: 2018-02-27
Abstract: A resource value transfer method, comprising: receiving a resource value transfer request sent by computer equipment where a first account is located; obtaining a first account identifier of the first account, a second account identifier of a second account, a first equipment identifier of the computer equipment, and a transfer value in the resource value transfer request; obtaining a maximum transfer threshold of resource value transfer for the first account initiated by the computer equipment identified with the first equipment identifier; and if the transfer value does not exceed the maximum transfer threshold, transferring the transfer value from the first account identified with the first account identifier to the second account identified with the second account identifier.
Patent WO-2019127899-A1 (WO)
Title: 歌词添加方法及装置
Inventor: ZHENG CHONG
IPC: G06F17/30
Filed: 2018-03-02
Abstract: 本申请公开了一种歌词添加方法及装置，属于信息处理领域。所述方法包括：接收歌曲伴奏的歌词添加指令；搜索与歌曲伴奏相关联的歌词，并显示搜索结果，搜索结果包括至少一个歌曲伴奏的歌词信息；根据接收到的针对搜索结果中目标歌词信息的选定操作，在歌词编辑界面中显示目标歌词信息对应的歌词数据；获取所述歌词编辑界面显示的所述歌词数据；在播放所述歌曲伴奏时，显示所述歌词数据。通过本申请提供的方法，即使歌曲录制应用程序中未存储伴奏对应的歌词，用户也可以在该歌曲录制应用程序提供的歌词编辑界面输入选定的歌词数据，并可以在歌曲录制的过程中，参考显示界面所显示的歌词数据进行演唱，有效提高了伴奏播放以及歌曲录制时的灵活性。
Patent WO-2018171484-A1 (WO)
Title: Ensemble charnière, mécanisme de rotation et terminal mobile pliable
Inventor: LIN YUGUI
IPC: H04M1/02
Filed: 2018-03-14
Abstract: L'invention concerne un ensemble charnière. L'ensemble charnière comprend un premier élément de charnière et un second élément de charnière séparé du premier élément de charnière, un élément de plaque dentée situé entre le premier élément de charnière et le second élément de charnière et couplé au premier élément de charnière et au second élément de charnière. Chacun du premier élément de charnière et du second élément de charnière comprend une première base, une seconde base, un élément de connexion flexible situé entre la première base et la seconde base et couplé à la première base et à la seconde base, et une pluralité d'éléments de charnière agencés dans une ligne et situés entre la première base et la seconde base. L'élément de plaque dentée comprend une première plaque de montage couplée de manière coulissante aux premières bases, une seconde plaque de montage couplée de manière coulissante aux secondes bases, et au moins un groupe de plaques dentées situé entre la première plaque de montage et la seconde plaque de montage et couplé à la première plaque de montage et à la seconde plaque de montage.
Patent WO-2019148603-A1 (WO)
Title: Touch screen and mobile terminal
Inventor: YE JIAN
IPC: G06F3/041
Filed: 2018-03-15
Abstract: A touch screen and a corresponding mobile terminal. The touch screen comprises a touch region (10) provided with multiple first conductive circuits (11) extending in a first direction and second conductive circuits (12) extending in a second direction. The second conductive circuits (12) and the first conductive circuits (11) are configured in an insulating and intersecting manner. Each of the first conductive circuits (11) comprises multiple first sensing electrodes (110) arranged at an interval and first connection bridges (111) used for connection. Each of the second conductive circuits (12) comprises multiple second sensing electrodes (120) arranged at an interval and second connection bridges (121) used for connection. An open window region (14) is provided within the touch region, and the open window region (14) cuts off at least one of the first conductive circuits (11) or/and at least one of the second conductive circuits (12). A connection between two sides of the first conductive circuit (11) or/and the second conductive circuit (12) cut off by the open window region (14) is established by means of an electrical connection, and communication with a bonding area (13) of the touch screen is achieved by means of the same. The invention realizes a touch function in a periphery of the open window region of the touch screen.
Patent WO-2018233343-A1 (WO)
Title: Lighting fixture, and brain-controlled lighting fixture system
Inventor: LI WENBO
IPC: H05B44/00
Filed: 2018-04-02
Abstract: The present invention relates to the field of lighting. Provided are a lighting fixture (10), and a brain-controlled lighting fixture system. The lighting fixture (10) comprises: a light-emitting device (100); and a control device (300) used to control a light emission state of the light-emitting device (100) according to an electroencephalogram signal measured by an electroencephalogram measurement device (200), such that the light emission state corresponds to a mental state of a user corresponding to the electroencephalogram signal measured by the electroencephalogram measurement device (200).
Patent WO-2019011011-A1 (WO)
Title: Image processing method, device, and system
Inventor: ZHANG HONG
IPC: H04N19/13
Filed: 2018-04-03
Abstract: The present application provides an image processing method, device, and system. The method comprises: parsing a code stream to acquire an encoding mode of a current image block to be reconstructed of a current image, a residual signal of the current image block to be reconstructed, and a pixel of each reference reconstruction image block corresponding to the current image block to be reconstructed, the encoding mode being an original resolution encoding mode or a downsampling encoding mode, and the current image block to be reconstructed corresponding to M reference reconstruction image blocks; determining multiple reference pixels of the current image block to be reconstructed according to the encoding mode of the current image block to be reconstructed and the pixels of the M reference reconstruction image blocks; generating a prediction signal according to the multiple reference pixels; and generating a reconstruction signal according to the predication signal and the residual signal, and reconstructing the current image block to be reconstructed according to the reconstruction signal to obtain a current reconstructed image block. Therefore, the reconstructed image block obtained by a decoding terminal works better.
Patent WO-2019183998-A1 (WO)
Inventor: ZHU ZHEN
IPC: C12M1/42
Filed: 2018-04-04
Abstract: A micro-flow control chip for cell tissue culture and real-time monitoring, and a use method therefor, said chip comprising a glass substrate layer (10) and a PDMS micro-flow channel layer (20) located on the glass substrate layer; the glass substrate layer (10) comprises a glass substrate and several pairs of microelectrodes (101, 102) provided on the glass substrate layer; the PDMS micro-flow channel layer (20) comprises several independent micro-fluidic channels; the several pairs of microelectrodes (101, 102) on the glass substrate are corresponding to the micro-flow channels on the PDMS micro-flow channel layer (20) on a one-to-one basis; and the microelectrodes (101, 102) are electrically connected to an external circuit. The use method comprises the steps of cell capture, cell tissue culture, electrical impedance spectroscopy detection and tissue release. Said chip is processed by means of a transparent base material, microscopic imaging can be taken as a supplementary means of the electrical impedance spectroscopy detection, the dynamic growth and the physiological behavior of cell tissues and other biological processes are subjected to observation and in-situ analysis, and the present invention can be used in the fields of biological research of cells or tissues, drug screening and the like.
Patent WO-2019196050-A1 (WO)
Title: X-ray detector based on silicon carbide single crystal and manufacturing method therefor
Inventor: LIANG HONGWEI
IPC: A61B5/06
Filed: 2018-04-12
Abstract: The present invention relates to the technical field of semiconductor device manufacturing, and relates to an X-ray detector based on silicon carbide single crystal and a manufacturing method therefor. The detector mainly comprises: a high-resistant silicon carbide single crystal, a high electron concentration n-type silicon carbide layer, a low electron concentration n-type silicon carbide layer, a high hole concentration p-type silicon carbide layer, a low hole concentration p-type silicon carbide layer, a silicon dioxide protective layer, a p-type silicon carbide ohmic contact electrode, a n-type silicon carbide ohmic contact electrode, and a gold lead electrode. The present invention provides an effective and simple manufacturing technology, solves the problem in manufacturing a silicon carbide-based high energy X-ray detector, and realizes the research and manufacturing of a novel silicon carbide radiation detector.
Patent WO-2019204998-A1 (WO)
Inventor: GUO JUN
IPC: A61K31/496
Filed: 2018-04-25
Abstract: L'invention concerne un procédé de criblage d'un médicament pour le traitement d'un mélanome muqueux, comprenant : (a) la mise en contact d'inhibiteurs d'EZH2 avec une lignée cellulaire de mélanome muqueux ou l'administration de ceux-ci à un animal souffrant d'un mélanome muqueux; et (b) la sélection d'un inhibiteur d'EZH2 qui inhibe la prolifération de la lignée cellulaire ou la croissance du mélanome. L'invention concerne en outre l'utilisation de l'inhibiteur d'EZH2 dans la préparation d'un médicament pour le traitement d'un mélanome muqueux, et une composition pharmaceutique pour le traitement d'un mélanome muqueux, la composition pharmaceutique comprenant l'inhibiteur d'EZH2.
Patent WO-2019165701-A1 (WO)
Inventor: GU WEI
IPC: H02J3/02
Filed: 2018-04-27
Abstract: Disclosed in the present invention is a random robust coupling optimization scheduling method for alternating-current and direct-current hybrid micro-grids, comprising the following steps: 10), acquiring source and load power prediction data of the alternating-current and direct-current hybrid micro-grids and constructing a random uncertainty set; 20), constructing an objective function of random robust coupling optimization scheduling models; 30), constructing constraint conditions of the random robust coupling optimization scheduling models; and 40), solving random robust coupling optimization scheduling problems, that is, solving the random robust coupling optimization problems by means of a column constraint generation algorithm to obtain a random robust coordinated operation plan of the alternating-current and direct-current hybrid micro-grids. Said method takes the shortcomings of strong conservative properties of the traditional robust optimization scheduling models into consideration, combines random optimization and robust optimization, can improve the operation economy of the alternating-current and direct-current hybrid micro-grids on the basis that the system robustness is guaranteed, and provides guidance and assistance for establishing operation modes of the alternating-current and direct-current hybrid micro-grids.
Patent WO-2018210242-A1 (WO)
Title: Traitement efficace de déchets alimentaires et de ses eaux usées à l'aide d'un bioporteur durable à charge microbienne élevée
Inventor: SIN SUI HAN
IPC: C02F3/34
Filed: 2018-05-15
Abstract: Un bioporteur (1) comprend : une coque (2) comprenant un matériau polymère ; et un ou plusieurs noyaux (3) comprenant un matériau poreux pour fixer des microorganismes, le ou les noyaux étant au moins partiellement enfermés dans la coque de telle sorte que le ou les noyaux soient accessibles à partir d'un environnement externe, au moins l'un des, ou les noyaux définissant un premier axe (31) et des surfaces opposées (32) le long du premier axe, de telle sorte que les surfaces opposées soient exposées à l'environnement externe. Le bioporteur ayant une charge microbienne élevée et une durabilité utiles pour le traitement des déchets, des systèmes de traitement des déchets les comprenant, et des procédés d'utilisation de ceux-ci.
Patent WO-2019218361-A1 (WO)
Inventor: PAN XIANHONG
IPC: G06F3/044
Filed: 2018-05-18
Abstract: 一种触控面板，包括互相接合或靠近的一组边缘端，该组边缘端包括第一边缘端和第二边缘端，所述第一边缘端上设有第一边缘感应通道，所述第二边缘端上设有第二边缘感应通道，该组边缘端上设置的第一边缘感应通道与第二边缘感应通道电连接而合并成同一个感应通道。本申请还提供一种触控装置及触控面板的感应通道制造方法。本申请通过将触控面板互相接合或靠近的两边缘端上设置的边缘感应通道合并成同一感应通道，可以提高所述触控面板的触控灵敏度，并降低感应盲区触摸失灵的风险，同时也提高了用户使用体验。
Patent WO-2019119762-A1 (WO)
Inventor: LUO YUNQIANG
IPC: C06B33/14
Filed: 2018-06-26
Abstract: 本发明涉及一种气体发生器，该气体发生器采用的点火药剂组合物包括如下质量百分比含量的组分：硝酸锶 40％～60％；5 -氨基四唑 5-AT25％～40％；硝酸钾 1％～20％；云母粉 1％～20％；三氧化二铝 0.5％～10％；石墨 0.1％～10％；氮化硼 0.1％～10％；该点火药剂组合物使得药片压片过程中不粘模，压片后药片能够很好的保持原有的光泽和形态，改善了点火药在低温 -40℃存在点火延迟或波动大的现象，保证了点火药在-40℃～+90℃温度下工作时波及的范围更广，并且在点燃气体发生剂时点火更均匀，一致性更好，显著提升了点火性能；此外本发明气体发生器采用的气体发生剂组合物，使药片燃烧后能够很好的保持燃烧前的形态，避免燃烧后药片熔融飞溅烧伤气袋，并且显著提高了组合物的低温点火性能同时提高燃烧速度。
Patent WO-2019128222-A1 (WO)
Title: 洗车机
Inventor: HUANG JIAFENG
IPC: B60S3/04
Filed: 2018-08-01
Abstract: 一种洗车机，包括蒸汽发生器和与蒸汽发生器的储水腔连通的蒸汽管路（10），蒸汽管路（10）上设置有喷枪（20），以将蒸汽发生器的储水腔内的蒸汽喷出，洗车机还包括：补水管路（30），补水管路（30）与蒸汽管路（10）连接，以向蒸汽管路（10）内补充水分，以提高喷枪（20）喷出的蒸汽的含水量。该洗车机解决了现有技术中的洗车机的清洗效率较低的问题。
Patent WO-2020019370-A1 (WO)
Inventor: MA JULONG
IPC: A47K13/00
Filed: 2018-08-06
Abstract: 本发明公开了一种便于拆卸的橡塑马桶垫圈，包括支撑块，所述支撑块的侧面开设有通孔，所述通孔内设置有两个卡接装置，所述卡接装置包括连接杆，所述连接杆的顶端和底端分别固定连接在通孔内表面的顶部和底部，所述连接杆的左侧面通过两个弹簧固定连接在滑杆的右侧面。该便于拆卸的橡塑马桶垫圈，当需要将垫圈本体拆下更换或清洗时，由人们向上拉动两个把手，把手通过牵引绳带动滑杆向内侧运动，从而使得两个圆杆相互靠近，圆杆从圆孔内抽出，圆杆不再通过圆孔对固定块起到连接作用，此时将垫圈本体、U形板和固定块取下即可，整个过程简单方便快捷，从而方便了人们对垫圈本体的清洗或更换，给人们的生活带来了方便。
Patent WO-2019136990-A1 (WO)
Title: Network data detection method, apparatus, computer device and storage medium
Inventor: YANG ZHIMIN
IPC: H04L29/06
Filed: 2018-08-10
Abstract: A network data detection method, comprising: intercepting network data to be detected, and storing said intercepted network data within a data queue; inputting said intercepted network data within the data queue into a machine learning model for processing to obtain an initial determination result; when the initial determination result indicates that the intercepted network data to be detected is first cheating data, then matching the first cheating data with second cheating data within a rule library; when the matching of the first cheating data within the second cheating data within the rule library is successful, then marking the network data to be detected as cheating data.
Patent WO-2020037563-A1 (WO)
Inventor: HAN XIAO
IPC: A61B8/14
Filed: 2018-08-22
Abstract: 本申请涉及一种超声成像的方法及相关设备，超声成像的方法包括：获取受测对象的超声体数据；从所述超声体数据中确定目标解剖结构的位置信息；根据所述目标解剖结构的位置信息从所述超声体数据中确定所述目标解剖结构的超声图像；显示所述超声图像。
Patent WO-2019042237-A1 (WO)
Title: Order delivery method, apparatus, and computer-readable storage medium
Inventor: HU HUAZHI
IPC: G06Q10/08
Filed: 2018-08-24
Abstract: Disclosed in the present invention are an order delivery method, an apparatus, and a computer-readable storage medium, wherein order delivery comprises the following steps: when order information of a user is received, displaying the order information in a non-accepted order status bar; when an order acceptance operation of a merchant is received, reporting order acceptance information, and adjusting the order information to be in a non-delivered status bar; and when an operation of loading being complete for take-off is received from the merchant, reporting information of loading being complete for take-off, and using the same to notify an unmanned aerial vehicle to take off for delivery. The present invention provides the effects of increasing the efficiency of order delivery, and improving user experience.
Patent WO-2019076139-A1 (WO)
Title: Display panel and display device
Inventor: FANG ZHIXIANG
IPC: G06F3/044
Filed: 2018-08-28
Abstract: A display panel (200), comprising one or more pressure sensing units (270), the one or more pressure sensing units (270) being configured to sense a pressure input on the display panel (200). Each pressure sensing unit (270) comprises a first upper electrode (271), a first lower electrode (272) provided opposite to the first upper electrode (271), and a piezoelectric material layer (273) located between the first upper electrode (271) and the first lower electrode (272). Further provided is a display device (900) comprising the display panel (200).
Patent WO-2020051761-A1 (WO)
Inventor: LAI JIANXI
IPC: G01N33/86
Filed: 2018-09-11
Abstract: 一种凝血分析仪，包括反应容器(100)、置于反应容器(100)内的金属运动部件(110)、样本检测装置(200)、控制装置(300)及存储装置(400)，样本检测装置(200)包括驱动线圈(210)和测量线圈(220)，驱动线圈(210)用于生成驱动电磁场，以驱动金属运动部件(110)在反应容器(100)内的待测样本中做振荡运动；测量线圈(220)用于生成感应电磁场，以检测金属运动部件(110)的振荡运动而产生的运动电信号；控制装置(300)用于获取金属运动部件(110)在至少一段持续时间内的运动电信号，并将至少一段持续时间内的运动电信号存储至存储装置(400)中。还提供了一种凝血分析仪检测样本的方法及存储介质。
Patent WO-2019144628-A1 (WO)
Inventor: ZHENG WEIBO
IPC: G10L21/0216
Filed: 2018-09-12
Abstract: 一种降噪方法及电子设备，电子设备确定占用与麦克风（600）连接的复数个第一类音频通路的复数个第一应用以及占用与扬声器（601）连接的第二类音频通路的第二应用，其中该复数个第一应用与所述第二应用不同（200）；电子设备使用该复数个第一类音频通路的音频数据的采样率中的每个采样率，对第二类音频通路的音频数据进行重采样（201）；电子设备根据重采样得到的音频数据分别对该复数个第一类音频通路中每个第一类音频通路的音频数据进行降噪处理（202）。
Patent WO-2019057103-A1 (WO)
Title: Jak inhibitor, preparation method therefor, and application in the field of medicine
Inventor: XU XIN
IPC: A61P37/00
Filed: 2018-09-20
Abstract: The present application relates to the field of medicinal chemistry, and to a JAK inhibitor, a preparation method therefor, and an application in the field of medicine. The present application provides a novel small molecule JAK inhibitor, having a structure as represented by general formula II. The present compound as represented by general formula II has a better drug effect and is safer in the prevention or treatment of JAK-related indications.
Patent WO-2019095894-A1 (WO)
Title: 测量信号的方法和设备
Inventor: YANG XIAODONG
IPC: H04W24/02
Filed: 2018-10-10
Abstract: 本发明实施例公开了一种测量信号的方法和设备，其中方法包括：确定进行信号测量时满足的测量条件；在非连接态下，在满足所述测量条件时进行信号测量，或者，在非连接态下，在不满足所述测量条件时停止测量。通过本发明实施例能够使用户侧设备在非连接态下进行信号测量，从而使用户侧设备在进入连接态后快速的完成CA或DC的配置。并且，由于用户侧设备在非连接态下，在满足测量条件时进行信号测量，因此用户侧设备的测量行为均符合网络侧设备的要求，从而避免用户侧设备进行无效测量，提高用户侧设备的信号测量效率。
Patent WO-2019233011-A1 (WO)
Title: Smart tray-loading and sowing machine
Inventor: JIN GAOXIANG
IPC: A01G9/08
Filed: 2018-10-15
Abstract: A smart tray-loading and sowing machine, comprising a short machine frame (1) and a long machine frame (2). The short machine frame (1) comprises a frame body (11) and a transmission apparatus (12). The upper part of the frame body is provided with the transmission apparatus (12) via a roller provided. The transmission apparatus (12) employs a transmission chain structure. Multiple claws are evenly distributed on the transmission apparatus (12). The distance between adjacent two claws of the transmission apparatus (12) is 680 mm. The width of the transmission apparatus (12) is 340 mm. The right side of the short machine frame (1) is provided with the long machine frame (2) via a lock. A forklifting apparatus (3), a base mounting apparatus (4), and a hole pressing apparatus (5) are fixedly provided sequentially from left to right via bolts above the short machine frame (1). A sterilizing apparatus (6), a sowing apparatus (7), a watering apparatus (8), and a base covering apparatus (9) are fixedly provided sequentially from left to right via bolts above the long machine frame (2). This increases tobacco sowing efficiency and tobacco growth quality.
Patent WO-2019184309-A1 (WO)
Inventor: YAN TAO
IPC: F16K15/02
Filed: 2018-12-04
Abstract: Provided is a high-temperature and high-pressure gate valve for an ultra-supercritical main steam system, wherein a supporting plate (20) is axially disposed inside a valve chamber (16); a first bearing (21) is disposed at a lower end of the supporting plate (20) in an axial direction of the valve chamber (16); a valve rod (13) passes through the supporting plate (20) and is fixedly connected to the first bearing (21) in a rotatable manner; valve plates (12) are pivotally connected to the lower end of the supporting plate (20); a bearing plate (22) is disposed at a middle position between the two valve plates (12); a second bearing (23) is coaxially disposed below the first bearing (21); an upper end of the bearing plate (22) is connected to the second bearing (23); a compression screw (24) is coaxially disposed inside the valve rod (13); a lower end of the compression screw (24) is fixedly connected to the second bearing (23) in a rotatable manner; and a supporting rod (25) is disposed at a lower end of the bearing plate (22); and a compression wheel (26) is disposed on the supporting rod (25).