The pipeline stop valve comprises a valve body and a valve element, a liquid inlet and a liquid outlet are formed in the two ends of the valve body respectively, a valve seat is arranged in a valve cavity, a driving unit is arranged at the front end of the valve element, and the driving unit drives the valve element to linearly move relative to the valve seat to close or open a valve port between the liquid inlet and the liquid outlet. A membrane is arranged between the valve element and the valve seat to form a sealing structure, and when the driving unit drives the valve element to move, the membrane turns over to adapt to relative movement between the valve element and the valve seat. The diaphragm is arranged between the valve element and the valve seat to form a sealing structure, and the reliable sealing effect can still be guaranteed in the movement process of the valve element relative to the valve seat through the overturning action of the diaphragm; the diaphragm is not rubbed with the valve core and the valve seat, so that no abrasion is caused; the valve port is opened and closed in a pneumatic mode, response is rapid, and rapid on-off of a pipeline can be guaranteed; the whole driving unit is arranged in the pipeline stop valve, the size of the pipeline stop valve is small, and pipeline arrangement is facilitated.

    本发明提供一种管道截止阀,包括阀体和阀芯,进液口和出液口分别设在阀体的两端,阀腔内设有阀座,阀芯前端设置有驱动单元,驱动单元驱动阀芯相对于阀座直线运动关闭或开启进液口和出液口之间的阀口,所述的阀芯与阀座之间设置有膜片构成密封结构,驱动单元驱动阀芯运动时膜片发生翻转动作以适应两者之间的相对运动。在阀芯与阀座之间设置有膜片构成密封结构,通过膜片的翻转动作实现阀芯相对于阀座在运动过程中仍能够保证可靠的密封效果;膜片不会与阀芯、阀座发生摩擦,无磨损;通过气动方式开启和关闭阀口,响应迅速,能够保证管道的快速通断;整个驱动单元都设置在管道截止阀的内部,管道截止阀体积小,有利于管道的布置。


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    Title :

    Pipeline stop valve


    Additional title:

    管道截止阀


    Contributors:

    Publication date :

    2023-11-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16K VALVES , Ventile / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen




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