The invention discloses an anti-reverse-spraying drain valve, a train excrement collection system and a working method, relates to the technical field of excrement collection, solves the problems that an existing drain valve is complex in structure and easy to damage, and improves the automation degree and sensitivity, and adopts the specific scheme that one side of a piston is connected with a valve plate which moves in the direction perpendicular to the axial direction of a dirt inlet along with the piston; the valve plate is provided with a through hole used for communicating the sewage inlet and the sewage outlet, the valve plate can move between the sewage inlet and the sewage outlet in the axial direction of the sewage inlet and the sewage outlet, the sewage inlet and the sewage outlet are both in close contact with the surface of the valve plate through an elastic sewage guide mechanism, the inner wall of the valve body is provided with a clamping groove, the valve plate is fixedly provided with a stop unit, and the stop unit is connected with the clamping groove. The stop unit is used for being matched with the clamping groove to limit the valve plate to move along with the piston when the pressure of the sewage outlet is larger than that of the sewage inlet.

    本发明公开了一种防反喷排泄阀、列车集便系统及工作方法,涉及集便技术领域,解决了现有排泄阀结构复杂、易损坏的问题,提高了自动化程度及灵敏度,具体方案如下:所述活塞的一侧连接有跟随活塞沿垂直与进污口轴向移动的阀板,阀板上设有用于连通进污口、排污口的通孔且阀板能够在进污口、排污口之间沿进污口、排污口的轴向移动,所述进污口、排污口均通过弹性的导污机构与阀板表面紧密接触,所述阀体的内壁上设有卡槽,阀板上固定设有止挡单元,所述止挡单元用于在排污口压力大于进污口时与卡槽配合限制阀板跟随活塞移动。


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    Title :

    Anti-reverse-spraying drain valve, train excrement collecting system and working method


    Additional title:

    一种防反喷排泄阀、列车集便系统及工作方法


    Contributors:
    LIU HOUWEN (author) / JIANG JUN (author) / ZUO YANDONG (author) / LI KAI (author) / YAN SHENG (author) / LI PENG (author)

    Publication date :

    2023-11-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES



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