Rewinding mechanism for rail transit vehicle emergency escape evacuation ramp

Abstract

The invention discloses a rewinding mechanism for a rail transit vehicle emergency escape evacuation ramp. A ramp rewinding mechanism and an escape door rewinding mechanism are left-to-right-symmetrically installed at the front end part or the back end part of a rail transit vehicle body. The ramp rewinding mechanism is used for folding the ramp and actively controlling a ratchet wrench to rotateto fold the emergency escape evacuation ramp and is a pedal mechanism front-end supporting point of the emergency escape evacuation ramp. The escape door rewinding mechanism is used for assisting theramp active rewinding mechanism and rewinding a folded escape door located at the emergency escape evacuation ramp during ramp rewinding. According to the rewinding mechanism, by arranging the ramp rewinding mechanism and the escape door rewinding mechanism, the operation of single person ramp rewinding can be achieved, by additionally arranging a damper and a buffering device, the impact of the gravity impact and pedal mechanism rewinding on the ramp rewinding mechanism and the escape door rewinding mechanism is eliminated, and the rewinding mechanism is ingenious in structure and convenientto operate and has good application prospect.

Description

technical field [0001] The invention relates to a recovery mechanism for an emergency escape and evacuation ramp of a rail transit vehicle, belonging to the technical field of rail transit vehicle components. Background technique [0002] With the rapid development of urban rail transit, the demand for rail transit vehicles is also increasing. At present, rail transit vehicles are equipped with emergency escape evacuation ramps, which are used to facilitate the rapid escape of passengers in the case of emergency failures, especially in narrow underground passages. The existing emergency escape evacuation ramp has the following deficiencies, [0003] (1) It is necessary to install a recovery belt hoisting structure on the top of the car body, the installation interface is complicated, and there is a need for reinforcement of the roof; [0004] (2) The structure of the folding pedal and the recovery belt is adopted. Due to the heavy weight of the folding pedal, multiple peop...

AI Technical Summary

Problems solved by technology

[0003] (1) It is necessary to install a recovery belt hoisting structure on the top of the car body, the installation interface is complicated, and there is a need for reinforcement of the roof;

[0004] (2) The structure of the folding pedal and the recovery belt is adopted. Due to the heavy weight of the folding pedal, multiple people are required to participate in the release and recovery action, which is cumbersome and time-consuming to operate;

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