The invention discloses an emergency evacuation ramp capable of crossing obstacles for urban rail vehicles. The emergency evacuation ramp comprises a foldable ramp main body, two groups of first four-rod mechanisms for controlling the movement locus of the ramp main body, two groups of second four-rod mechanisms for controlling synchronous stretching of the ramp main body, and two groups of third four-rod mechanisms for controlling grab rails to unfold; the two groups of first four-rod mechanisms, the two groups of second four-rod mechanisms and the two groups of third four-rod mechanisms are symmetrically arranged on the two sides of the ramp main body; the first four-rod mechanisms are added to pedals at the head end so as to cross obstacles when being unfolded; the third four-rod mechanisms are added to the pedals at the last end, so that when the grab rails are unfolded, flexible handrail ropes can be supported for hands to hold, and therefore, the safety can be improved; when the ramp main body is flattened and placed in position, the pedals of various stages are mechanical latched to avoid impact unlocking and insufficient latching; besides, a separate energy storage thruster is provided to absorb kinetic energy when the ramp is folded for storage and to provide power needed by unfolding; the emergency evacuation ramp is convenient to use and suitable for the modification of the existing urban rail vehicles, and has excellent application prospect.
Emergency evacuation ramp capable of crossing obstacles for urban rail vehicles
2015-07-01
Patent
Electronic Resource
English
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
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