The invention discloses a railway vehicle parking brake device. The device comprises a wind pressure structure, a hydraulic structure, a control mechanism and an executing mechanism. The wind pressurestructure comprises a parking brake cylinder, a parking air cylinder and a double-cylinder change-over valve which are connected through air pipes. The double-cylinder change-over valve is provided with a change-over valve plunger, and whether the double-cylinder change-over valve is connected with the parking brake cylinder, the parking air cylinder and a train pipe or not is achieved through upward moving or downward moving of the change-over valve plunger. When the train pipe of a vehicle is inflated or decompressed for braking, the change-over valve plunger moves upwards, and the parkingbrake cylinder of the device is in an air inflation relieving state; when the vehicle is parked on a rail for a long time and the train pipe is not inflated with air, pressure air in the air pressurestructure leaks, the change-over valve plunger moves downwards, and the device is automatically braked through an original basic braking device of the vehicle. When the vehicle is in a windless condition, brake release operation can be repeatedly carried out through a control mechanism: parking brake can be released by manually treading a pedal release lever; and parking braking can be carried outby manually rotating a brake handle anticlockwise.

    本发明一种铁路车辆停放制动装置,包括风压结构、液压结构、操纵机构和执行机构,风压结构包括经风管连接的停放制动缸、停放风缸和双缸转换阀,双缸转换阀设置有转换阀柱塞,通过转换阀柱塞的上移或下移,实现双缸转换阀与停放制动缸、停放风缸及列车管的连通与否。当车辆列车管充风或减压制动时,转换阀柱塞上移,本装置停放制动缸就处于充风缓解状态;当车辆长时间停放在轨道上,且列车管未充风时,风压结构内的压力空气会泄露,转换阀柱塞下移,本装置就通过车辆原基础制动装置自动制动。当车辆处于无风状况时,可通过操纵机构重复进行制动缓解操作:人工踩踏脚踏缓解杆,即可缓解停放制动;人工逆时针旋转制动手柄,即可施行停放制动。


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    Title :

    Railway vehicle parking brake device


    Additional title:

    一种铁路车辆停放制动装置


    Contributors:
    FENG SIYUAN (author) / WANG GUYUE (author)

    Publication date :

    2020-09-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61H Bremsen oder andere Verzögerungseinrichtungen ausgebildet für Schienenfahrzeuge , BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES



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