The invention relates to the technical field of rail transit braking, in particular to a gravity type sanding valve which comprises a main valve body, the main valve body is provided with a sand inlet, a sand channel assembly, a sand outlet head, an air inlet assembly, an air channel assembly and a sand blowing assembly, and the air inlet assembly comprises an air inlet body, a main air inlet connector and a sand outlet tuyere seat. The sand outlet tuyere seat is detachably arranged on the air inlet body, and a sand blowing assembly is arranged on the sand outlet tuyere seat and comprises a mounting seat, a needle rod, an elastic piece and a sand outlet tuyere. The sand blowing assembly is modularly designed, and the needle rod is pressed to be inserted into the air duct of the sand outlet tuyere to dredge the sand blowing assembly, so that the effect of quick and effective cleaning can be achieved, and the sanding efficiency can be greatly improved.

    本发明涉及轨道交通制动技术领域,具体涉及一种重力式撒砂阀,重力式撒砂阀包括主阀体,主阀体上设有进砂口、砂道组件、出砂头、进风组件、风道组件及吹砂组件,进风组件包括进风体、总进风接头及出砂风嘴座,出砂风嘴座可拆卸式设置在进风体上且出砂风嘴座上设有吹砂组件,吹砂组件包括安装座、针杆、弹性件及出砂风嘴。而本发明通过模块化设计吹砂组件且通过按压针杆使其插入出砂风嘴的风道对其进行疏通,可达到快速有效清理的效果,可大大提高撒砂效率。


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    Title :

    Gravity type sanding valve


    Additional title:

    一种重力式撒砂阀


    Contributors:
    WANG SHENGSHENG (author) / TAN FACHENG (author) / LIU XIAO (author) / YANG YONGBIN (author) / ZHU BINBIN (author)

    Publication date :

    2025-02-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61C Lokomotiven , LOCOMOTIVES



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