The invention discloses a locking mechanism used for a urban rail vehicle emergency evacuation ramp. A ramp lock comprises a pushing rod, a locking seat, a limiting shaft, a connecting shaft, a shackling plate, a locking pin shaft and an air spring, one side of the locking seat is connected at the tail of the pushing rod through a rotation pair hinge while the other side of the same is fixed a last-stage pedal of the urban rail vehicle emergency evacuation ramp through bolts, the limiting shaft is riveted on the pushing rod, the shackling plate is fixed at the front end of the pushing rod through bolts, a locking pin shaft clamping groove is formed in the bottom of the shackling plate, the locking pin shaft is connected in the locking pin shaft clamping groove in a clamped manner and fixed on a first-stage pedal of the urban rail vehicle emergency evacuation ramp, one end of the air spring is hinged in the middle of the pushing rod while the other end of the same is hinged to the connecting shaft, and the connecting shaft is fixed on the last-stage pedal of the urban rail vehicle emergency evacuation ramp. The locking mechanism can reliably lock the ramp, is simple in structure and high in using reliability and has good application prospect.


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    Title :

    Locking mechanism used for urban rail vehicle emergency evacuation ramp


    Contributors:
    DAI CUN (author) / GONG ZHIBING (author)

    Publication date :

    2015-06-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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



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