The invention discloses a buffering device, a coupler assembly, a train and a rail transit system. The buffering device comprises a piston cylinder, a piston rod and a throttle valve assembly; a medium cavity is formed in the piston cylinder, the piston rod comprises a plug part moving in the medium cavity, and an annular gap is formed between the outer peripheral surface of the plug part and themedium cavity; the plug part is provided with a throttling hole penetrating from the stroke side end face of the plug part to the return stroke side end face of the plug part, and the throttling valveassembly is arranged in the medium cavity and is constructed to close the throttling hole in the stroke process of the piston rod and open the throttling hole in the return stroke process of the piston rod. According to the buffering device, good buffer performance is achieved, and the return stroke efficiency is improved.

    本发明公开了一种缓冲装置、车钩组件、列车和轨道交通系统,缓冲装置包括活塞缸、活塞杆和节流阀组件,活塞缸内具有介质腔,活塞杆包括在介质腔内运动的塞部,塞部的外周面与介质腔之间具有环隙,塞部上具有由塞部的进程侧端面贯穿至塞部的回程侧端面的节流孔,节流阀组件设在介质腔内,且构造成在活塞杆进程时关闭节流孔,在活塞杆回程时打开节流孔。根据本发明的缓冲装置,具有良好的缓冲性能,提升了回程效率。


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    Title :

    Buffering device, coupler assembly, train and rail transit system


    Additional title:

    缓冲装置、车钩组件、列车和轨道交通系统


    Contributors:
    ZHANG JING (author) / LIU JIAJIA (author) / WANG WEICHUN (author) / WU SHENG (author)

    Publication date :

    2021-02-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61G Kupplungen besonders ausgebildet für Eisenbahnfahrzeuge , COUPLINGS SPECIALLY ADAPTED FOR RAILWAY VEHICLES



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