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.
Emergency evacuation ramp for urban rail vehicle and control method
2015-05-06
Patent
Electronic Resource
English
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
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