baber/WOPTO huggingface dataset:
Patent WO-2020238845-A1 (WO)
Inventor: GAN MING
IPC: H04L1/00
Filed: 2020-05-25
Abstract: The present application discloses a retransmission data sending method, a retransmission data receiving method, and a related device, belonging to the field of communication technology. In the present solution, a sending end sends a first aggregated media access control protocol data unit (A-MPDU), the first A-MPDU comprising M A-MPDU subframes and M tail bit parts, one tail bit part being located corresponding to one A-MPDU subframe; the sending end determines N MPDUs in the first A-MPDU that need to be retransmitted, the N MPDUs being respectively included in N A-MPDU subframes of the first A-MPDU; the sending end sends a second A-MPDU, the second A-MPDU comprising N A-MPDU subframes and N tail bit parts corresponding to the N A-MPDU subframes, one tail bit part including at least 6 bits, the at least 6 bits having preset values; and a receiving end can directly perform combination decoding or joint decoding on the log likelihood ratio (LLR) of the encoded bits of the retransmitted MPDU and the LLR of the encoded bits of the last incorrectly received MPDU, improving the transmission efficiency and transmission reliability.
Patent WO-2021169078-A1 (WO)
Title: 一种带非接触红外体温测量仪的智能手机
Inventor: ZENG JINHUI
IPC: H04M1/72406
Filed: 2020-06-03
Abstract: 本申请公开了一种带非接触红外体温测量仪的智能手机，包括打开APP、红外线传感器和智能手机，所述打开APP通过互联网电性连接有注册账号，所述注册账号通过互联网电性连接有绑定设备，所述绑定设备通过互联网电性连接有平台对设备管理，所述平台对设备管理通过互联网电性连接有设备运行，所述设备运行通过互联网电性连接有分析所得数据，所述分析所得数据通过互联网电性连接有记录数据，本申请在普通智能手机的前摄像头侧旁增加一个热释电红外体温传感器，用户在使用时，通过热释电红外体温传感器内的红外线传感器，经过运算放大器模块、A/D转换模块、数据处理模块和显示部分模块，随时随地得到分析所得数据的实时体温。
Patent WO-2021063014-A1 (WO)
Inventor: LI YI
IPC: H02K1/27
Filed: 2020-06-03
Abstract: Provided is a rotor structure of a permanent magnet synchronous electric motor applied to an electric vehicle. The rotor structure uses a built-in double-layer V-shaped magnetic pole structure, a magnetic pole included angle of an inner-layer V-shaped magnetic pole structure is larger than a magnetic pole included angle of an outer-layer V-shaped magnetic pole structure, and the difference between the magnetic pole included angle of the inner-layer V-shaped magnetic pole structure and the magnetic pole included angle of the outer-layer V-shaped magnetic pole structure is [0°, 50°], and the width of a permanent magnet groove of the inner-layer magnetic pole structure is 1.5-2 times the width of a permanent magnet groove of the outer-layer magnetic pole structure. Further provided in the present application are a permanent magnet synchronous electric motor comprising the rotor structure, a power assembly comprising the permanent magnet synchronous electric motor, and an electric vehicle comprising the power assembly. According to the scheme of the present application, reasonable numerical matching is performed on the magnetic pole included angles of the inner and outer magnetic pole structures and the widths of the permanent magnet grooves, such that a salient pole ratio of the permanent magnet synchronous electric motor can be modified, the permanent magnet consumption can be reduced, and the cost can be reduced.
Patent WO-2021042811-A1 (WO)
Title: Blockchain-based asset screening method, apparatus, and electronic device
Inventor: Qi Pengtao
IPC: G06Q40/04
Filed: 2020-06-17
Abstract: Provided are a blockchain-based asset screening method, apparatus, and electronic device, comprising: receiving a target transaction triggered when the transfer information from an investor to the equity holder of the basic asset stored in the blockchain is monitored; in response to said target transaction, invoking a screening logic in a smart contract deployed on the blockchain, and from the basic assets stored in the blockchain, screening out basic assets which meet the asset screening rules set by an asset manager; and creating a basic asset pool on the basis of the selected basic assets; the basic asset pool is used for issuing securitized assets as value support.
Patent WO-2021057141-A1 (WO)
Title: Pipelined instruction reading method and apparatus based on fpga
Inventor: PAN GUOZHEN
IPC: G06F9/38
Filed: 2020-06-28
Abstract: A pipelined instruction reading method and apparatus based on an FPGA. The method may comprise: an on-chip processor on an FPGA chip determining a code program to be executed, wherein the on-chip processor is formed by the FPGA chip loading a circuit logic configuration file that has been deployed on an FPGA structure to which the FPGA chip belongs, and the code program corresponds to a smart contract called by a transaction and received by a blockchain node to which the FPGA structure belongs (102); and during a process in which the on-chip processor sequentially reads, according to a preset length, data contained in the code program, parsing the end bit of a non-fixed-length operation instruction contained in a data segment read each time, so that a data segment read next time is adjacent to the end bit (104).
Patent WO-2021147262-A1 (WO)
Title: Method for screening bacteria capable of degrading ethylene oxide
Inventor: XUE JIANLONG
IPC: A62D101/28
Filed: 2020-07-09
Abstract: Provided is a method for screening bacteria capable of tolerating and degrading ethylene oxide. The method comprises: preliminary screening, purification, ethylene oxide tolerance acclimatization, and ethylene oxide degradation acclimatization. The method for screening and acclimatization is simple to operate, and the ability of the acclimatized strains to degrade ethylene oxide is significantly improved. Therefore, a series of ethylene oxide-degrading strains capable of tolerating and degrading ethylene oxide may be obtained, which have excellent treatment performance and is safe, environmentally friendly, and is of great significance for decontamination treatment of ethylene oxide.
Patent WO-2022032473-A1 (WO)
Inventor: MA CONG
IPC: H01M50/358
Filed: 2020-08-11
Abstract: The present application relates to an electrochemical device and an electronic device. The electrochemical device comprises a housing which has a cavity, and the housing comprises a wall surface, wherein the wall surface is provided with a stress weak region. In the present application, the stress weak region disposed on the wall surface of the housing of the electrochemical device is a weak part of the housing. When the electrochemical device produces gas under conditions such as short circuit, high temperature, overcharging, and the like, the pressure inside the housing increases. Under the action of said pressure, an opening can be formed in the stress weak region, and the opening is capable of connecting an internal cavity of the housing to the external environment in which the electrochemical device is located, thereby discharging the gas in the internal cavity of the housing, reducing the risks of the expansion deformation or even explosion of the electrochemical device caused by the gas in the electrochemical device, and improving the safety of the electrochemical device.
Patent WO-2021103665-A1 (WO)
Title: 显示面板及显示装置
Inventor: QIN XU
IPC: G06K9/00
Filed: 2020-08-18
Abstract: 本申请公开了一种显示面板及显示装置，显示面板包括显示模组，显示模组包括阵列基板以及位于阵列基板上的多个发光单元，，多个发光单元均包括电极，发光单元中的反射电极与对应的像素驱动电路在电位连接点处电连接，显示模组包括多个透光区，透光区位于阵列基板上；指纹识别模组，指纹识别模组位于阵列基板远离发光单元的一侧，指纹识别模组设置为根据经由触摸主体反射后透过显示模组的透光区照射至指纹识别模组的光线进行指纹识别；显示模组的透光区包括多个第一透光区，每个第一透光区的面积大于或等于一个像素单元所占面积的2.5％，沿垂直于显示面板的方向，第一透光区对应电位连接点设置。
Patent WO-2021139169-A1 (WO)
Inventor: ZHANG GUOHUI
IPC: G06K9/34
Filed: 2020-08-26
Abstract: 一种卡片识别方法、装置、设备及存储介质，涉及金融科技领域。卡片识别方法包括：在检测到卡片检测服务启动时，获取目标卡片对应的多帧图像帧，多帧图像帧中每帧图像帧为红绿蓝RGB格式的图像帧（S101），之后，根据多帧图像帧确定目标卡片的卡片信息（S102），卡片信息用于反映目标卡片的边缘情况和关键点情况，最后，根据目标卡片的卡片信息判断目标卡片是否为真卡（S103）。有利于提高卡片识别的效率以及准确度。
Patent WO-2021073274-A1 (WO)
Title: Pneumatic sending device and pneumatic sending method for sample tube
Inventor: YANG CHEN
IPC: B65G53/16
Filed: 2020-08-28
Abstract: Disclosed are a pneumatic sending device and a pneumatic sending method for a sample tube, and the pneumatic sending device comprises a conveying pipeline and an adjusting element. The conveying pipeline is provided with a conveying channel, the adjusting element is provided with a maintaining through hole, the adjusting element can be switched between a receiving state and a sending state at the sending end of the conveying pipeline, and when the adjusting element is in the sending state, the conveying channel of the conveying pipeline corresponds to and is in communication with the maintaining through hole of the adjusting element, such that the sample tube maintained in the maintaining through hole of the adjusting element can be driven to enter the conveying channel of the conveying pipeline, and the sample tube can be driven to be sent to the receiving end from the sending end of the conveying pipeline along a sending path formed by the conveying channel along with gas flowing in the conveying channel of the conveying pipeline.
Patent WO-2021147322-A1 (WO)
Inventor: LIU XIAOQING
IPC: F04D25/06
Filed: 2020-08-31
Abstract: 一种氢气循环泵组件及燃料电池，氢气循环泵组件包括氢气循环泵(100)，氢气循环泵(100)包括电机、风轮和泵壳(1)，泵壳(1)里面设置泵腔，风轮安装在泵腔里面，电机驱动风轮转动，泵壳(1)上设有入气口(11)和出气口(12)，泵腔与入气口(11)和出气口(12)连通，入气口(11)连接一个加热装置(2)，出气口(12)连接一个过滤装置(3)，回收气体首先经过加热装置(2)的处理然后进入氢气循环泵(100)，并从氢气循环泵(100)的出气口(12)到达过滤装置(3)，经过过滤装置(3)处理后排出，解决低温状态下氢气循环系统中水结冰的技术问题，同时降低整个系统的额外功耗，提高整个系统的效率，节约能源，降低成本。在出气口连接一个过滤装置，避免冰颗粒未完全融化就输出到燃料电池的电堆，安全性可靠性更好。
Patent WO-2021135349-A1 (WO)
Inventor: ZHANG LIDI
IPC: G05F1/56
Filed: 2020-09-04
Abstract: 一种低压差线性稳压器（200）及其控制电路，控制电路包括误差放大器（210）和防倒灌电路（220），防倒灌电路（220）用于将输入电压（Vin）和输出电压（Vout）进行比较，以将功率晶体管（Mpout）的衬底电压（VCCH）和控制端电压（Vgate）切换为输入电压（Vin）和输出电压（Vout）之间的最高电位，从而可以在输出电压（Vout）大于输入电压（Vin）时及时关断功率晶体管（Mpout）及其寄生体二极管（D1、D2），防止电流倒灌对功率晶体管（Mpout）的损坏，提高低压差线性稳压器（200）的可靠性。
Patent WO-2022021537-A1 (WO)
Inventor: YUE LINJIANG
IPC: C23C10/52
Filed: 2020-09-08
Abstract: The present application provides a powder sherardizing agent, an anti-corrosion metal part and a sherardizing method. The powder sherardizing agent comprises the following components in parts by mass: 20-100 parts of metal powder, 40-80 parts of a dispersing agent and 0.2-5 parts of a decomposing agent. The metal powder comprises 60-97 parts of zinc powder and 3-40 parts of magnesium powder. The powder sherardizing agent provided in the present application can achieve the infiltration of magnesium during the sherardizing process, and zinc and magnesium can form a zinc-magnesium alloy phase having high corrosion resistance, thereby greatly improving the corrosion resistance of the infiltrated layer. The sherardizing method provided in the present application has simple operation, convenient use, low costs, high economic benefits and wide application ranges.
Patent WO-2021057789-A1 (WO)
Inventor: Kou shuaihua
IPC: H04W4/70
Filed: 2020-09-23
Abstract: 本文公开了一种信息指示方法、装置及计算机可读存储介质。该信息指示方法包括：第一通信节点向第二通信节点发送第一指示信息，第一指示信息用于指示第一通信节点在测量间隔内进行信号质量测量或者进行数据传输。
Patent WO-2021258569-A1 (WO)
Title: 针对非水平布置管道在切管时落入管内碎屑的伞状收集系统
Inventor: LI JI
IPC: B23D21/00
Filed: 2020-09-25
Abstract: 一种针对非水平布置管道在切管时落入管内碎屑的伞状收集系统，包括手柄装置部分和伞状收集装置部分等；手柄装置部分与伞状收集装置部分的伞杆(7)的一端相连，伞面(8)的中心处套装在伞杆(7)的另一端，伞面(8)上布置有龙骨伞架(9)，控制绳(5)的一端与龙骨伞架(9)相连，另一端为自由端，能够控制伞面(8)处于收缩状态或打开状态；若干连接块(11)周向均布在伞面(8)的边缘上，电磁铁(12)与连接块(11)配合使用，提供连接块(11)所需的吸力。由于具有伸缩、弯折功能，适用于非水平布置管道在切管时落入管内杂物的收集，适用于各类尺寸和位置管道，有效避免切割产生的碎屑滑落进管道深处，减少汽轮机叶片、汽门密封面等因碎屑击打或冲蚀造成的损坏，减少设备运行的安全隐患。
Patent WO-2021063297-A1 (WO)
Title: Détermination de ressources de rétroaction à partir d'un canal partagé de liaison latérale
Inventor: SALIM UMER
IPC: H04W72/04
Filed: 2020-09-28
Abstract: L'invention concerne un procédé de détermination de ressources de rétroaction PSSCH effectué au niveau d'un UE, la ressource de rétroaction PSSCH (PSFCH) ayant une périodicité N définie sous la forme d'un certain nombre d'intervalles. Le procédé consiste à compter un certain nombre de sous-canaux, C, de PSSCH dans la période N, chaque sous-canal, C, étant associé à une ressource PSFCH ; à compter un nombre de ressources PSFCH, R, dans la période N ; à indexer les sous-canaux, C, en fonction du temps ; et après l'indexation des sous-canaux, C, en fonction du temps, à indexer les sous-canaux, C, en fonction de la fréquence.
Patent WO-2021179578-A1 (WO)
Title: 业务逻辑调试方法、装置、设备及计算机可读存储介质
Inventor: ZHANG YUCHEN
IPC: G06F11/36
Filed: 2020-09-28
Abstract: 本申请公开一种业务逻辑调试方法、装置、设备及计算机可读存储介质，所述方法包括：当侦测到包括请求头的调试请求时，读取与调试请求对应的目标日志等级、目标加密秘钥和第一加密数值；根据目标加密秘钥对目标日志等级进行加密，生成第二加密数值；当第一加密数值和第二加密数值匹配时，根据目标日志等级，采集基于与调试请求对应的业务逻辑生成的调试数据，以基于调试数据对业务逻辑进行调试。
Patent WO-2022007206-A1 (WO)
Title: Drawing command processing method, gpu, main device, terminal, and medium
Inventor: JIAO YONG
IPC: G06T1/20
Filed: 2020-09-29
Abstract: A drawing command processing method, a GPU, a main device, a terminal, and a medium, relating to computer technology, and capable of solving the problem in the related art in which a main device and a GPU have frequent interactions therebetween. The drawing command processing method is applicable to a GPU, and comprises: the GPU reading, from a memory, command words of the current group of drawing commands according to a starting address of the command words of the current group of drawing commands, wherein the command words of the current group of drawing commands have been written into the memory by a main device in advance (S301); and the GPU performing analysis on the acquired command words, and upon determining that an end command obtained by means of the analysis is a first command comprising a starting address of command words of the next group of drawing commands, the GPU reading, from the memory, corresponding command words according to the starting address of the command words of the next group of drawing commands (S302).
Patent WO-2022061948-A1 (WO)
Inventor: MU HAILING
IPC: C25D3/32
Filed: 2020-09-29
Abstract: The present invention relates to an insoluble anode methyl sulfonic acid coating low-lead content tin plate production method. The method comprises the following steps: step 1: an alkaline washing process section, first performing electrochemical alkaline washing on a steel substrate, a sodium hydroxide solution containing potassium hydroxide being used as an alkaline washing solution; and comprising brushing, bristles on a brush roller being a nylon material containing an abrasive; step 2: an acid washing process section, strip steel after being subjected to alkaline washing entering into a chemical acid washing tank, a sulfuric acid solution having low concentration being used in the acid washing tank, spraying the sulfuric acid solution onto the surface of the strip steel by using a high-pressure spraying apparatus, and comprising a brushing process, bristles on a brush roller being a pure nylon material; step 3: a plating process section, using low current density, high concentration of tin ions, and a high temperature of a plating solution, and controlling deposition of lead ions in the plating solution; and step 4: for lead in the plating solution, performing lead removal by means of continuous external circulation; controlling lead content in a tin coating to 50 mg/kg or below. Stable production of low-lead content tin plate is achieved, and the requirement for safety of food packaging materials is satisfied.
Patent WO-2022067847-A1 (WO)
Inventor: ZHANG YUSHU
IPC: H04W72/04
Filed: 2020-10-02
Abstract: This disclosure relates to techniques for performing wireless communications by rapidly moving user equipment device in communication with a network. The UE may adapt communication techniques in response to the UE's motion. For example, reference signals may be transmitted by the UE to additional transmission and reception points and/or using different configurations. Similarly, the UE may receive reference signals from additional transmission and reception points.
Patent WO-2021143219-A1 (WO)
Title: Condenser assembly and integrated washer dryer
Inventor: YANG ZAINING
IPC: D06F58/24
Filed: 2020-10-10
Abstract: A condenser assembly and an integrated washer dryer. The condenser assembly comprises a condenser (10), the condenser (10) comprising a main body (11) and a connector (12) provided on the main body (11), and the connector (12) having an opening communicated with a cavity of the main body (11); and a spray portion (20) comprising a spray member (21) and a first snap-fit structure (22) provided on the spray member (21), wherein a portion of the spray member (21) is inserted into the opening, the first snap-fit structure (22) is snap-fitted with the connector (12), the spray member (21) has a nozzle (211), and the nozzle (211) is used for spraying water to the inner wall of the main body (11).
Patent WO-2021169329-A1 (WO)
Title: 清洁机器人
Inventor: LIANG ZHENYU
IPC: A47L11/32
Filed: 2020-10-19
Abstract: 一种清洁机器人(10)，包括机器人主体(1)及设置于机器人主体(1)内的控制单元；固定单元(2)，固定单元(2)设置于机器人主体(1)前端底部；固定单元(2)包括套筒(21)及超声波传感器(3)，超声波传感器(3)固定于套筒(21)内，且与控制单元电连接，超声波传感器(3)用于向下发射超声波并接收不同地面形态反射的回波。清洁机器人(10)能够提高地毯识别的准确度和精确度。
Patent WO-2021083210-A1 (WO)
Title: System and method for hybrid-arq
Inventor: JIA MING
IPC: H04L1/18
Filed: 2020-10-28
Abstract: Systems and methods are disclosed for providing H-ARQ transmissions in respect of a set of horizontal code blocks are combined in a code. Retransmissions contain vertical parity check blocks which are determined from verticals from the set of horizontal code blocks. Once all the vertical parity check blocks have been transmitted, a new set may be determined after performing interleaving upon either the content of the horizontal code blocks, in the case of non-systematic horizontal code blocks, or over the content of encoder input bits in the place of systematic horizontal code blocks. The interleaving may be bitwise or bit subset-wise. The retransmissions do not contain any of the original bits. In the decoder, soft decisions are produced, and nothing needs to be discarded; decoding will typically improve with each retransmission.
Patent WO-2022062055-A1 (WO)
Inventor: NIU DONG
IPC: C12N15/85
Filed: 2020-10-29
Abstract: Provided are a CRISPR system and the use thereof in the preparation of severe-immunodeficiency cloned pig nuclear donor cells with multiple genes jointly knocked out. Provided are a method for preparing severe-immunodeficiency pig-derived recombinant cells with four genes, i.e. the ADA gene, the DQA gene, the DRA gene and the IL2RG gene, jointly knocked out; a CRISPR system; a combination of sgRNAs; a combination of plasmids; and a kit, wherein the combination of sgRNAs is composed of sgRNA ADA-g7  as shown in SEQ ID NO: 11, sgRNA DQA-gn2  as shown in SEQ ID NO: 21, sgRNA DRA-g1  as shown in SEQ ID NO: 28 and sgRNA IL2RG-g7  as shown in SEQ ID NO: 40, and can be used for preparing recombinant cells, immunodeficiency animal models and immunodeficiency animal cell models.
Patent WO-2022088071-A1 (WO)
Inventor: QIU YUANYOU
IPC: H01L27/32
Filed: 2020-10-30
Abstract: A display substrate and a display device, the display substrate comprising a plurality of first light emitting devices (6) located in a first display area (AA1), a plurality of second light emitting devices located in a second display area (AA2), a plurality of first pixel driving circuits (7) and a plurality of second pixel driving circuits (8), wherein the plurality of first pixel driving circuits (7) and the plurality of first light emitting devices (6) are correspondingly electrically connected, the plurality of second pixel driving circuits (8) at least partially overlap with and are correspondingly electrically connected to the plurality of second light emitting devices, and at least one of the second pixel driving circuits (8) has a gate connection electrode. The display substrate further comprises a plurality of connection leads (9), wherein each of at least some of the connection leads (9) is electrically connected to at least one first pixel driving circuit (7) and one first light emitting device (6), and orthographic projections of the connection leads (9) and the gate connection electrode on a base substrate do not overlap with each other.
Patent WO-2021088782-A1 (WO)
Inventor: CHEN XIAOHANG
IPC: H04W74/08
Filed: 2020-11-03
Abstract: Provided in the embodiments of the present invention are a transmission method and device. The method comprises: determining first spatial information; and according to the first spatial information, receiving, in a CSS and/or a USS, a random access response message of a two-step random access process triggered by beam failure recovery (BFR). A terminal can receive, in a common search space and/or a user-equipment-dedicated search space, a random access response message of a two-step random access process triggered by beam failure recovery (BFR), thereby improving the reliability of a communication system.
Patent WO-2021114968-A1 (WO)
Inventor: XU CHEN
IPC: H04W72/12
Filed: 2020-11-05
Abstract: A scheduling method and apparatus, used for solving the problem in the prior art of difficulty in self-adaption of the scheduling algorithm to the number of user equipments. The method comprises: after processing first state information sets of K terminal devices to be scheduled, obtaining second state information sets of the K terminal devices, the second state information set of any one terminal device comprising station information of the any one terminal device and state associated data between the any one terminal device and other terminal devices, and the dimension of the second state information set of the any one terminal device being H; and separately inputting the second state information set of each terminal device to a first neural network model, determining a scheduled weight of each terminal device, and further determining a scheduling result, the first neural network model being determined on the basis of H. During scheduling, the neural network model is decoupled from the number of terminal devices to be scheduled, and can be applied to scenarios where the numbers of terminal devices to be scheduled are different.
Patent WO-2022104652-A1 (WO)
Inventor: Xin Tingyu
IPC: H04W4/06
Filed: 2020-11-19
Abstract: Disclosed are a communication method and apparatus. A terminal device reports to an access network device a first multicast and broadcast service that is of interest to the terminal device and/or of which a transmission mode that is being used for data receiving is a first transmission mode. As a result, the terminal device can no longer report information for indicating whether the terminal device is interested in another multicast and broadcast service and information for indicating whether the terminal device is receiving another multicast and broadcast service. The uplink overhead can be reduced.
Patent WO-2022095136-A1 (WO)
Inventor: YANG LANYU
IPC: A47J37/06
Filed: 2020-11-20
Abstract: 一种燃气烤炉温度控制器及其烤炉，包括控制模块、温度检测模块、提示模块和气体调节模块。控制模块分别与温度检测模块、提示模块、气体调节模块相连并传输信号；温度检测模块设于炉内，用于探测炉内温度并反馈回控制模块；提示模块用于接收并提示控制器的温度过高或正常；气体调节模块用于接收控制器反馈的温度及控制量，控制进气量，从而实现温度的调节或开关；微型开关的导通、断开的信号即高电平及低电平的2值电平信号传输给控制模块；控制器识别各微型开关是否为导通状态，即熄火按钮（40）的操作状态。通过炉盘（14）和温度传感器（11）的配合，能够对炉盘（14）的温度进行精确的实时监测，配合比例阀（45），实现对炉盘（14）温度的精确控制。
Patent WO-2021212828-A1 (WO)
Inventor: LIAN GUANGFENG
IPC: B60B35/16
Filed: 2020-11-25
Abstract: A full suspension axle provided with a bend-resistant fin, the axle comprising an axle housing (10); the axle housing (10) is internally provided with two suspended half shafts (1), and a full suspension braking hub (2) and a brake assembly (4) are mounted at both ends of the axle housing (10); the full suspension braking hub (2) is rotatably connected to the axle housing (10) by means of two parallel bearings (7); a bend-resistant fin (9) is fixed at the middle of the axle housing (10); a gap exists between the two bearings (7) located on the same end of the axle housing (10), and the gap is internally provided with a spacer body; the spacer body is formed by two disc springs (6) that are fitted and combined together, and the disc springs (6) press firmly against inner rings of the two bearings (7) located on the same end of the axle housing (10). The described axle can effectively improve the impact deformation capabilities of the axle housing (10), and simultaneously improve the strength of support by the bearings, thus ensuring the stability of a shaft.