The invention discloses an emergency evacuation ramp for an urban rail vehicle and a control method. The emergency evacuation ramp comprises a folding ramp main body, wherein racks are arranged on the two sides of the front end part of the ramp main body respectively; four-rod mechanisms for realizing folding or expanding of the ramp main body are arranged on the two sides of the ramp main body; the racks are connected with the four-rod mechanisms on the corresponding sides through speed-limiting dampers respectively; the expanding speed of the ramp main body is controlled by the speed-limiting dampers; the end parts of the speed-limiting dampers are hinged to the racks and the four-rod mechanisms. By additionally arranging the speed-limiting dampers for stabilizing the ramp expanding speed, damping force is produced by the dampers to control the expanding speed when the expanding speed exceeds a set value, impact damage caused to parts and impact noise are avoided, the service life is prolonged, the safety performance is improved, and good application prospect is realized.


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    Title :

    Emergency evacuation ramp for urban rail vehicle and control method


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

    Publication date :

    2015-05-06


    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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