The invention relates to an auxiliary piston assembly of a vehicle brake master cylinder. The auxiliary piston assembly is driven by a main piston assembly and connected in series with the main piston assembly in a cylinder body, the auxiliary piston assembly comprises a piston body and an elastic body, the piston body is formed in a hollow shape with one end being an open end and the other end being a closed end, the main piston assembly is connected to an outer bottom surface of the closed end to drive the auxiliary piston assembly. One end of the elastic body is arranged on the inner bottom face of the closed end, the other end of the elastic body extends out of the piston body to be connected with the inner bottom face of the cylinder body, and a plurality of protruding structures which axially extend to support the elastic body are arranged on the inner side wall of the piston body. The auxiliary piston assembly is simple in structure and convenient to assemble, cost can be saved, and therefore the problems that an existing auxiliary piston assembly is heavy in weight and high in cost are solved.

    本发明涉及一种车辆制动主缸的副活塞总成。该副活塞总成由主活塞总成驱动并且与主活塞总成串联连接在缸体内,副活塞总成包括:活塞主体,形成为一端为开口端且另一端为封闭端的空心形状,主活塞总成连接到封闭端的外底面以驱动副活塞总成;以及弹性体,一端设置于封闭端的内底面,另一端伸出活塞主体与缸体的内底面连接,其中,在活塞主体的内侧壁上设置有轴向延伸以支撑弹性体的多个突出结构。本发明提供的副活塞总成不仅结构简单且便于组装,还可以节约成本,从而解决现有的副活塞总成重量较重,成本较高的问题。


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    Title :

    Auxiliary piston assembly, brake master cylinder and vehicle


    Additional title:

    一种副活塞总成、制动主缸及车辆


    Contributors:

    Publication date :

    2021-06-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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