baber/WOPTO huggingface dataset:
Patent WO-2021208845-A1 (WO)
Title: Infectious virus carrier testing method, system and apparatus, device, and medium
Inventor: KANG YAN
IPC: G16H50/80
Filed: 2021-04-12
Abstract: An infectious virus carrier testing method, system and apparatus, a device, and a medium. The method comprises: obtaining biometric information of a person to be tested, and performing identity recognition on the biometric information to obtain an identity identifier (S10); sending the identity identifier to a coordination terminal, so that the coordination terminal sends the identity identifier to multi-party participation nodes, and the multi-party participation nodes process user feature information corresponding to the identity identifier by means of respective federal virus carrier testing sub-models to obtain testing intermediate quantities (S20); and receiving and outputting an infectious virus carrier testing result obtained by the coordination terminal on the basis of the fusion of the detection intermediate quantities (S30).
Patent WO-2022174527-A1 (WO)
Inventor: ZHANG FAN
IPC: H01L33/00
Filed: 2021-05-19
Abstract: The present invention provides a chip epitaxial layer structure and a manufacturing method therefor, comprising: a substrate layer, a lower epitaxial layer, an upper epitaxial layer, and an etching buffer layer. The lower epitaxial layer is located at one end of the substrate layer, the etching buffer layer is provided at one end of the lower epitaxial layer distant from the substrate layer, and the upper epitaxial layer is provided at one end of the etching buffer layer distant from the substrate layer; the etching rate of the etching buffer layer is lower than that of the upper epitaxial layer; the etching buffer layer is added between the upper epitaxial layer and the lower epitaxial layer, and the etching rate of the etching buffer layer is lower than that of the upper epitaxial layer, namely, in the process of etching the upper epitaxial layer, the abrasion rate of the etching buffer layer is lower than that of the upper epitaxial layer, thereby protecting the lower epitaxial layer in the etching process of the upper epitaxial layer.
Patent WO-2022028052-A1 (WO)
Inventor: LIU XI
IPC: G05F1/575
Filed: 2021-05-27
Abstract: 一种实现电流快速响应的芯片控制方法，包括如下步骤，步骤一，将芯片电感的谷值电流变化信号接入控制器中；步骤二，检测谷值电流的变化，计算谷值电流的变化斜率K  1 ；步骤三，确定预设值K  0 ，所述预设值K  0 由芯片的控制模式及电感确定；步骤四，比较判断变化斜率K  1 与预设值K  0 大小，确定芯片控制模式；步骤五，进行下一周期持续循环检测，重复上述判断；本发明在进行电流动态响应时，将电感的谷值电流变化信号接入控制器中，通过检测电流的变化来切换控制模式的开启与导通，实现电流动态变化时，对输出电压的迅速调整，避免触发芯片的过流保护，有效解决后端动态变化时的抽载需求，保持电压稳定；无需额外的设计电路，降低生产成本。
Patent WO-2022041892-A1 (WO)
Title: 洗衣机
Inventor: YAMAUCHI TOMOHIRO
IPC: D06F39/10
Filed: 2021-05-28
Abstract: 一种洗衣机，能将维护过滤单元时的工序数抑制到最小限度来减轻用户的负担。本发明的洗衣机具备：洗涤脱水桶，底部配置有波轮；以及线屑捕集装置，设置于配置在洗涤脱水桶的内周面的折流板，线屑捕集装置具有：过滤构件(10)，具有过滤器(13)；以及罩构件(30)，形成为能相对于过滤构件(10)滑动来进行拆装，罩构件(30)具有在过滤构件(10)从罩构件(30)拆卸时与过滤器(13)接触的刮取部(36)。
Patent WO-2022028070-A1 (WO)
Title: Body fluid analyte detection device
Inventor: YANG CUIJUN
IPC: A61B5/00
Filed: 2021-05-31
Abstract: A body fluid analyte detection device, comprising: a transmitter (12), provided with at least one first snap-fit part (121); a bottom shell (10), provided with a second snap-fit part (101) corresponding to the first snap-fit part, the transmitter being assembled on the bottom shell by mutual snap fitting of the first snap-fit part and the second snap-fit part, the bottom shell comprising a fixing part and a force application part, and the fixing part being fixed and applying a force to the force application part in a direction to disable the bottom shell, so that the first snap-fit part and the second snap-fit part are separated from each other, and then the bottom shell and the transmitter are separated; a battery (208), used for supplying power to the transmitter; a sensor (11), used for detecting body fluid analyte parameter information and electrically connected to the transmitter to transmit a parameter signal; and a waterproof structure, used for preventing water drops from entering an electric connection area. The usage reliability of the body fluid analyte detection device is improved, and the convenience in usage of a user is improved.
Patent WO-2022100073-A1 (WO)
Inventor: ZHANG YUNLONG
IPC: G06F16/16
Filed: 2021-06-02
Abstract: A method may include determining, based on an event record of an event, first event information associated with the event. The method may include determining, based on recording content regarding the event collected by at least one target recording device, second event information associated with the event. The method may further include determining, based on the first event information and the second event information, a corresponding relationship between the recording content and the event record, the corresponding relationship being used to retrieve, transmit, or store the recording content.
Patent WO-2021259165-A1 (WO)
Inventor: LIU HUIMIN
IPC: B66C23/76
Filed: 2021-06-18
Abstract: The present application relates to the technical field of hoisting devices, and in particular to a self-dismounting-mounting displacement counterweight apparatus and a crane. The self-dismounting-mounting displacement counterweight apparatus comprises: a drive mechanism, arranged at one of multiple predetermined positions of a frame of the crane; and a counterweight mechanism, a part of the counterweight mechanism being connected to the drive mechanism, and the drive mechanism being capable of driving the counterweight mechanism to move. When the drive mechanism is arranged at different predetermined positions, the counterweight mechanism can be connected to a corresponding mounting position of an upper trolley on the crane. According to the self-dismounting-mounting displacement counterweight apparatus provided in the present application, other hoisting devices are not needed, and the drive mechanism is used for driving the counterweight mechanism to ascend and descend, so that the counterweight mechanism is connected to the upper trolley of the crane, and the counterweight mechanism can rotate along with the upper trolley, so as to ensure that a hoisting arm normally runs; moreover, the hoisting arm can have good stability and safety under any rotation radius by selecting different mounting positions and corresponding predetermined positions, and the trolley overturning risk is obviously reduced.
Patent WO-2022105238-A1 (WO)
Title: 作业机械
Inventor: DENG BIAO
IPC: E04G21/04
Filed: 2021-06-30
Abstract: 一种作业机械，包括车体（1）、转台（2）及转接结构，车体（1）上装有位于驾驶室（4）后方的回转总成（3），转台（2）包括支撑座（21）与支撑臂（22），支撑座（21）安装于回转总成（3）上，支撑臂（22）安装于支撑座（21）上，并且能够相对于转台（2）的回转轴线回转至驾驶室（4）的上方，支撑臂（22）上安装转接结构。该作业机械的结构保证了转台的机械强度，对转台的偏心设置不受限制，并使得转台能够达到较大的偏心距离，确保了与转台连接的臂架能够布置于作业机械的驾驶室上方，充分利用了驾驶室上方的空余空间，可有效增长臂架布置的长度。
Patent WO-2022007754-A1 (WO)
Title: Worker position estimation method and device, and storage medium
Inventor: YANG ZHIQIN
IPC: G05B19/418
Filed: 2021-07-05
Abstract: A worker position estimation method and device, and a storage medium. The method comprises: at the beginning of each working stage, acquiring an initial worker position corresponding to a worker entering a specified position point in advance (S10); monitoring a human-robot interaction event between a robot and the worker in real time, and acquiring real-time position information of the robot (S20); on the basis of the acquired initial worker position and the real-time position information of the robot, acquiring, at preset time intervals, a worker distribution probability of a worker being present at each position point in a working field, and generating a visual real-time probability graph corresponding to the worker distribution probability (S30); and estimating the real-time position of the worker in the working field on the basis of the generated real-time probability graph (S40). In this way, the aim of estimating a position distribution probability of a worker in real time on the premise of not changing an existing field environment and the worker not wearing any positioning device is achieved.
Patent WO-2022166104-A1 (WO)
Title: Procédé de synthèse d'un composé d'amine chirale
Inventor: HONG HAO
IPC: C12N9/10
Filed: 2021-07-06
Abstract: L'invention concerne un procédé de synthèse d'un composé d'amine chirale. Une réaction amino est effectuée sur un substrat de cétone au moyen d'une transaminase sous l'action d'un donneur d'amine et le composé d'amine chirale est obtenu. Une région de séquence d'acides aminés conservée de la transaminase comprend au moins la région 1, MAGLWCVN et la région 2, YNTFTKT. En utilisant une transaminase avec une région de séquence d'acides aminés conservée spécifique pour synthétiser la grande amine chirale à encombrement stérique, le volume réactionnel catalytique enzymatique est faible, la voie de synthèse est courte, le rendement du produit est élevé, la catalyse au moyen d'un métal noble de coût élevé n'est pas requise dans la condition de synthèse, les trois déchets sont réduits et le coût de production est économisé.
Patent WO-2022012513-A1 (WO)
Title: Method and apparatus for acquiring standard parameters of a car battery
Inventor: QU SONGSONG
IPC: G01R31/392
Filed: 2021-07-13
Abstract: A method and apparatus for acquiring standard parameters of a car battery, a battery testing device, and a storage medium, relating to the technical field of car battery testing. The method for acquiring standard parameters of a car battery comprises: displaying a display interface comprising a first region (510) and a second region (520); receiving car information inputted into the first region (S12); searching, according to the inputted car information, a preset mapping table for rechargeable-battery standard parameters corresponding to the car information (S13); and displaying the standard parameters in the second region (S14). During testing of a car battery, the battery testing device can automatically acquire standard parameters of the battery according to inputted car information, without a user needing to input the standard parameters of the battery one by one into the battery testing device, thereby improving the testing efficiency of the car battery and enhancing user experience.
Patent WO-2023283910-A1 (WO)
Title: 一种便携式户外用品
Inventor: XIE WENYAN
IPC: A41D1/00
Filed: 2021-07-16
Abstract: 本实用新型提供一种便携式户外用品，包括由具有弹性的薄膜围合形成的气囊，所述气囊可在填充气体或液体后而膨胀，所述气囊未填充气体或液体时，呈可折叠的片状；所述气囊的进气口处设置有可自密封的自密封件。在所述气囊未填充气体或液体时，可折叠收纳；在所述气囊填充气体或液体后，气囊膨胀，形成户外所需用品，比如服饰，可穿戴在人体上，防风保暖，隔离潮湿，不易破损。且该技术方案，采用薄膜制作，成本低，折叠后收纳占用空间小，且重量轻，便于携带，且可一次性使用，便于推广，适用各种使用场景，市场前景广阔。
Patent WO-2022042446-A1 (WO)
Title: Procédé pour accroître la teneur en vitamine c chez des plantes
Inventor: LI YANSHA
IPC: A01H6/00
Filed: 2021-08-20
Abstract: La présente invention concerne un procédé permettant un accroissement de la teneur en vitamine C chez les plantes en utilisant un mutant nucléotidique de la région 5'-terminale non traduite (5'-UTR) du génome GGP2 et/ou GGP1 dans les cellules végétales. Le mutant présente une délétion de fragment de 50 à 80 pb par rapport à un nucléotide 5'-UTR parent. La séquence du nucléotide 5'-UTR parent est représentée dans la SEQ ID NO : 1. La délétion de fragment comprend une séquence représentée dans SEQ ID NO : 2.
Patent WO-2022068520-A1 (WO)
Inventor: BURR GEOFFREY
IPC: G06N3/02
Filed: 2021-09-03
Abstract: Pipelining for analog-memory-based neural networks with all-local storage is provided. An array of inputs is received by a first synaptic array in a hidden layer from a prior layer during a feed forward operation. The array of inputs is stored by the first synaptic array during the feed forward operation. The array of inputs is received by a second synaptic array in the hidden layer during the feed forward operation. The second synaptic array computes outputs from array of inputs based on weights of the second synaptic array during the feed forward operation. The stored array of inputs is provided from the first synaptic array to the second synaptic array during a back propagation operation. Correction values are received by the second synaptic array during the back propagation operation. Based on the correction values and the stored array of inputs, the weights of the second synaptic array are updated.
Patent WO-2022052983-A1 (WO)
Inventor: GU WANPING
IPC: B67D7/08
Filed: 2021-09-09
Abstract: 一种加注补液一体机，包括储液箱（1）、控制配电机箱（2）、受控电动泵（3）、流量计（4）、加注连通组件（5）和补液连通组件（6），控制配电机箱（2）中设置有控制模块，受控电动泵（3）接收控制模块的控制指令并执行进入高频或低频工作状态。该加注补液一体机能够集加注和补液于一体，有效降低了设备成本，结构简单，布局合理，安装、使用和维护方便。
Patent WO-2023039935-A1 (WO)
Inventor: XU JING
IPC: A61L2/232
Filed: 2021-09-26
Abstract: Disclosed are a corrosion-resistant antibacterial coating for an artificial organ, and a preparation method for the coating. The coating is a polypeptide single-layer film with a diepoxy quaternary ammonium salt and a maleopimaric acid quaternary ammonium salt grafted thereon, wherein the grafting rate of the diepoxy quaternary ammonium salt is 3%-4%, the grafting rate of the maleopimaric acid quaternary ammonium salt is 2%-3%, the contact angle of the coating is 60°-75°, the antibacterial rate of the coating against Escherichia coli is 93%-99%, and the antibacterial rate of the coating against Staphylococcus aureus is 94%-100%. The maleopimaric acid quaternary ammonium salt and the diepoxy quaternary ammonium salt are grafted on the surface of a polypeptide monomolecular film, which enables a material to have a good antibacterial performance, and the defects in the prior art of a small-molecule quaternary ammonium salt as an antibacterial component being easily dissolved and the grafting rate of a high-molecular quaternary ammonium salt being low are overcome. Compared with grafting a single type of quaternary ammonium salt, grafting both a maleopimaric acid quaternary ammonium salt and a diepoxy quaternary ammonium salt can improve the antibacterial property of a material and can improve the corrosion resistance.
Patent WO-2023050078-A1 (WO)
Inventor: LI YAO
IPC: H01M50/30
Filed: 2021-09-28
Abstract: 一种电池（10）、用电装置、制备电池（10）的方法（600）和制备电池（10）的装置（700）。电池（10）包括：多个电池单体（20），包括第一电池单体（20a）和第二电池单体（20b），第一电池单体（20a）的第一壁（201a）上和第二电池单体（20b）的第二壁（202b）上设置有泄压机构（213）；热管理部件（30），用于容纳流体以给多个电池单体（20）调节温度，热管理部件（30）附接于第一电池单体（20a）的第一壁（201a）和第二电池单体（20b）的第一壁（201b），热管理部件（30）在对应于第一电池单体（20a）的泄压机构（213）的位置设置有泄压区域（301），用于在第一电池单体（20a）的泄压机构（213）致动时排放第一电池单体（20a）的排放物。
Patent WO-2023065298-A1 (WO)
Title: Indirect-to-indirect path switch with service continuity in a layer 2 ue-to-network relay
Inventor: TENNY NATHAN EDWARD
IPC: H04W36/00
Filed: 2021-10-22
Abstract: This disclosure describes a path switching procedure for transferring operation of a remote UE from a first relay UE to a second relay EE, while preserving continuity of the user's service(s) offered by a cellular network through the first and second relay EEs, in a layer 2 EE-to-network relaying architecture.
Patent WO-2023082098-A1 (WO)
Inventor: LIU NAN
IPC: A24F40/30
Filed: 2021-11-10
Abstract: The present invention relates to the technical field of electronic cigarettes, and specifically disclosed is a leakage-proof multi-cartridge electronic cigarette having a flavor conversion function, comprising: a mouthpiece assembly, liquid cups, atomization cores, and a battery rod. The mouthpiece assembly comprises a fixed frame provided with at least two liquid cup mounting positions and a mouthpiece rotatably mounted at the top of the fixed frame; each liquid cup mounting position is internally provided with one liquid cup and one atomization core; a first vapor passage port and at least one second vapor passage port capable of being open and closed are provided at the bottom of the mouthpiece, and a vapor outlet communicated with the first vapor passage port and the second vapor passage port is provided at the top of the mouthpiece; vapor channels are respectively formed between the atomization cores and the first vapor passage port or the second vapor passage port; each atomization core is close to the bottom of the corresponding liquid cup and a liquid inlet channel is formed between the atomization core and the bottom of the liquid cup, and an air inlet channel that is spaced from the liquid inlet channel and has an output end corresponding to a vapor output end of the atomization core is provided at the bottom of the liquid cup; when the second vapor passage port is closed, the vapor outlet outputs a predetermined flavor of vapor; and when the second vapor passage port is open, the vapor outlet outputs a mixed flavor of vapor.
Patent WO-2022227495-A1 (WO)
Inventor: WANG HEJIN
IPC: G06K9/00
Filed: 2021-11-12
Abstract: 本公开提供了一种显示面板及其制作方法、显示装置，属于显示技术领域。其中，显示面板包括：显示功能层；位于所述显示功能层一侧的功能电极层；位于所述功能电极层远离所述显示功能层一侧、与所述功能电极层电连接的透明导电层，所述透明导电层至少包括一层金属层和一层透明金属氧化物导电层，所述透明金属氧化物导电层的厚度大于所述金属层的厚度。本公开的技术方案能够提高感应信号的信噪比。
Patent WO-2022199072-A1 (WO)
Title: Liquid carbon dioxide production device and system
Inventor: LI DAHAI
IPC: F25J1/02
Filed: 2021-11-18
Abstract: A liquid carbon dioxide production device and system. The liquid carbon dioxide production device comprises a gas separation apparatus and a liquefaction purification apparatus, wherein the gas separation apparatus comprises a compression mechanism, a dehydrogenation mechanism, a purification mechanism and an oxygen supply mechanism; the liquefaction purification apparatus comprises a liquefaction purification mechanism, a liquid ammonia refrigeration mechanism, a storage tank, a first switch valve and a circulation switch valve; and an output end of the purification mechanism is connected to an input end of the liquefaction purification mechanism by means of the first switch valve, the liquefaction purification mechanism is connected to the liquid ammonia refrigeration mechanism by means of the circulation switch valve, and the first switch valve and the circulation switch valve are both used for being closed after a central control device sends out a parking signal. After a central control device sends out a parking signal, a first switch valve isolates a purification mechanism from a liquefaction purification mechanism, thereby reducing the probability of leakage of liquid carbon dioxide; and a circulation switch valve blocks a refrigeration circulation path, thereby reducing the probability of leakage of liquid ammonia, such that the timeliness and the safety of emergency processing in an emergent abnormal situation are improved.
Patent WO-2023082335-A1 (WO)
Inventor: Wan Shiwang
IPC: C22C38/18
Filed: 2021-11-24
Abstract: 气门及其耐高温合金。该合金的组成为：C：0.45～0.55(wt)％；Si：0～0.45(wt)％；Mn：8.00～10.00(wt)％；P：0～0.040(wt)％；S：0～0.030(wt)％；Cr：24.00～26.00(wt)％；Ni：8.00～13.00(wt)％；N：0.40～0.60(wt)％；W：0.80～1.50(wt)％；Nb+Ta：1.80～2.50(wt)％；V：0～0.15(wt)％；Co：0～0.1(wt)％；Mo：0～0.25(wt)％；以及余量为Fe。本发明的合金材料在高温抗氧化性、高温硬度、高温强度和高温蠕变性能上均能满足排气门日益苛刻、不断升级的实际工况要求以及混合动力内燃机排气门长时间高温的工作环境。
Patent WO-2022156366-A1 (WO)
Inventor: FENG HAO
IPC: A63F13/70
Filed: 2021-11-29
Abstract: La présente divulgation concerne un procédé et un appareil de traitement de ressources. Le procédé consiste à : en réponse à une opération de déclenchement visant à compléter des premières ressources virtuelles, déterminer une quantité actuelle de ressources résiduelles de secondes ressources virtuelles ; puis, lorsque la quantité de ressources résiduelles des secondes ressources virtuelles vérifie des conditions prédéfinies, déterminer la quantité consommée des secondes ressources virtuelles selon une relation de conversion de quantités de ressources entre les premières ressources virtuelles et les secondes ressources virtuelles et selon la quantité des premières ressources virtuelles à compléter ; et enfin, selon la quantité consommée des secondes ressources virtuelles et selon la quantité des premières ressources virtuelles à compléter, mettre à jour les quantités de ressources résiduelles des premières ressources virtuelles et des secondes ressources virtuelles. Selon les modes de réalisation de la présente divulgation, par conversion de secondes ressources virtuelles en premières ressources virtuelles, un utilisateur n'est pas tenu d'interrompre une opération en cours et un personnage virtuel est commandé pour trouver ou construire un point d'approvisionnement pour les premières ressources virtuelles, ce qui améliore la fluidité et la continuité d'une opération d'utilisateur en simplifiant les étapes visant à compléter les premières ressources virtuelles.
Patent WO-2022142986-A1 (WO)
Inventor: HE KE
IPC: G06F16/25
Filed: 2021-12-02
Abstract: For the problem that the cost for a current artificial intelligence system to match a new data format is high, an artificial intelligence system and a corresponding data processing method and apparatus are provided, so as to implement format conversion, according to an artificial intelligence task from a user, on input data corresponding to the artificial intelligence task. The data format available for the artificial intelligence system to process the artificial intelligence task can be extended while the cost is not high, and the artificial intelligence system can select a proper data format to process the artificial intelligence task, thereby improving the efficiency and broadening the application range of the artificial intelligence system.
Patent WO-2023082453-A1 (WO)
Inventor: CHENG JIANJIE
IPC: G06T5/00
Filed: 2021-12-31
Abstract: 一种图像处理方法及装置。该方法包括：获取待处理图像；确定待处理图像对应的天气类型；根据天气类型，获取待处理图像中与天气类型对应的环境噪声特征；根据环境噪声特征，得到待处理图像的非噪声图像特征，以及，根据环境噪声特征、非噪声图像特征和待处理图像，生成待处理图像对应的去噪图像。由此能够使用同一种技术框架解决更多天气条件下的图像质量退化问题以及提高了图像去噪、增强的效果。
Patent WO-2022242196-A1 (WO)
Inventor: MA JIAN
IPC: F25D17/04
Filed: 2022-01-04
Abstract: L'invention concerne un réfrigérateur (10), comprenant : un corps de réfrigérateur (200) ayant un premier compartiment de stockage (210) et au moins un second compartiment de stockage (220) formé à l'intérieur de celui-ci ; un dispositif d'élimination d'oxygène électrolytique (100) dont une partie est en communication d'écoulement d'air avec le premier compartiment de stockage (210), utilisé pour consommer de l'oxygène dans le premier compartiment de stockage (210) au moyen d'une réaction électrochimique, le dispositif d'élimination d'oxygène électrolytique (100) étant formé avec un orifice d'échappement (112) pour décharger de l'oxygène ; et un tube de guidage de gaz (300), une extrémité d'entrée d'air de celui-ci étant en communication avec l'orifice d'échappement (112) et une extrémité de sortie d'air étant en communication avec le second compartiment de stockage (220), conçu pour guider l'oxygène s'écoulant à travers l'orifice d'échappement (112) vers le second compartiment de stockage (220). Puisque le dispositif d'élimination d'oxygène électrolytique (100) peut créer une atmosphère de conservation à faible teneur en oxygène pour le premier compartiment de stockage (210), le tube de guidage de gaz (300) peut guider l'oxygène déchargé à partir du dispositif d'élimination d'oxygène électrolytique (100) vers le second compartiment de stockage (220). Le dispositif d'élimination d'oxygène électrolytique (100) est combiné avec le tube de guidage de gaz (300), de telle sorte que le réfrigérateur (10) de la présente invention crée facilement une atmosphère de conservation à faible teneur en oxygène et une atmosphère de conservation à haute teneur en oxygène, présente une structure simple, ne nécessite pas de dispositif de mise sous pression, est avantageux pour simplifier le processus de fonctionnement et réduire le coût de fonctionnement ainsi que le coût de maintenance du dispositif de mise sous pression.
Patent WO-2023130291-A1 (WO)
Inventor: ZHANG YUANCHAO
IPC: C02F1/54
Filed: 2022-01-06
Abstract: 本发明公开了基于壳聚糖净水剂的净水设备，涉及净水设备领域。本发明包括净水箱，设置于净水箱顶部的进水组件；所述进水组件包括进水管以及分流部，所述净水箱顶部设有进水口，所述进水管设置在进水口处，且与净水箱连通，所述进水管由多个弯曲状管体组合而成，分流部的各个分流板之间具有间隙，且可以旋转，在进行分流的过程中，水流使分流板旋转到面对水流的方向，而且水流从分流板的间隙流出，减小了水流速度，且在水流变向时，提供朝弯曲方向的力，使水流更轻松变向，减小弯曲段的压力，保护弯曲段，且进水管的多个弯曲，也能增加水流的时间，使废水较慢到达净水箱中，保护废水中的物质不会溅射出箱外，保证周围环境的安全。