Emergency escape evacuation ramp structure for rail transit vehicle

Abstract

The invention discloses an emergency escape evacuation ramp structure for a rail transit vehicle. The emergency escape evacuation ramp structure comprises linkage mechanisms and a pedal mechanism. Thetwo sets of linkage mechanisms are hinged to the two sides of the pedal mechanism. Each linkage mechanism comprises a plurality of linkage bodies which are hinged end to end in sequence. The pedal mechanism comprises a plurality of pedal bodies which are hinged end to end in sequence. The pedal bodies are obliquely downwards pressed to be deployed to form an emergency escape evacuation ramp. Therear end part of the bottommost linkage body is hinged to the side edge of the bottommost pedal body. The front end part of the topmost linkage body is connected with a retraction mechanism of the emergency escape evacuation ramp. The front end part of the topmost pedal body is hinged to the rail transit vehicle. The emergency escape evacuation ramp structure is especially suitable for the escapefrom the front door or the back door of the urban rail transit vehicle, the scissor-fork linkage mechanisms are used as guide movement devices, to perform the contracting and folding movement in coordination with the pedal mechanism, the quick retraction of the emergency escape evacuation ramp is realized, the structure is simple, and a bright application prospect is achieved.

Description

technical field [0001] The invention relates to an emergency escape and evacuation ramp structure for rail transit vehicles, belonging to the technical field of rail transit vehicle components. Background technique [0002] With the rapid development of urban rail transit, the demand for urban rail transit vehicles is also increasing. At present, emergency escape and evacuation ramp devices are installed on urban rail transit vehicles. The emergency escape and evacuation ramp devices are used to facilitate the rapid escape of passengers in the case of emergency failures, especially in narrow underground passages. The existing emergency escape and evacuation ramp structure has the following disadvantages. Due to the heavy weight of the folding pedal, multiple people are required to participate in the release and recovery action. The structure is complex, the operation is cumbersome, time-consuming, the passing width is narrow, and there is no protection. Measures affect safe...

AI Technical Summary

Problems solved by technology

The existing emergency escape and evacuation ramp structure has the following disadvantages. Due to the heavy weight of the folding pedal, multiple people are required to participate in the release and recovery action. The structure is complex, the operation is cumbersome, time-consuming, the passing width is narrow, and there is no protection. Measures affecting safe escape and escape speed

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