Linkage type telescopic pedal of railway vehicle overturning plate pedal

Abstract

The invention discloses a linkage type telescopic pedal of a railway vehicle overturning plate pedal. The linkage type telescopic pedal comprises a fixed pedal assembly. The fixed pedal assembly is provided with a surrounding plate and a fixed pedal fixed in the surrounding plate. A framework composed of two side plates and one bottom plate is fixed to the lower portion of the surrounding plate, the two side plates are provided with crossing pedal rotating shafts through bearings, pedal rotating arms are fixed to the two ends of the pedal rotating shafts respectively, pedal side frames are hinged to the ends of the pedal rotating arms, a horizontal movable pedal is fixed between the pedal side frames in a crossing mode, supporting blocks provided with sliding grooves are fixed to the side plates, and the pedal side frames are arranged in the sliding grooves and can slide. Rocker arms are fixed to the pedal rotating shafts, pull rods are hinged to the ends of the rocker arms, and overturning plate rotating arms fixedly connected with overturning plate rotating shafts are hinged to the upper ends of the pull rods. Linage of an overturning plate and the pedal is achieved in a mechanical mode, related operation is simplified for a conductor, production cost is effectively reduced, components in a pedal for an original hinge door can serve as most components during production, and the technology manufacturing difficulty is lowered.

Description

technical field [0001] The invention relates to a telescopic pedal for a rail vehicle, in particular to a flip pedal linkage type telescopic pedal, which belongs to the field of car body steel structure design. Background technique [0002] Domestic railway folding door pedals have a three-step fixed pedal structure, which meets the height requirements of domestic platforms, but cannot meet the situation of foreign railways with low platforms. At present, the export of rail vehicles to developing and underdeveloped countries in China is quite common. The basic conditions of developing and underdeveloped countries are poor, the vehicle limit is relatively small, and there are many cases of low platforms. For example, the platform height of one of our foreign projects is only 200mm, while the floor surface of the car is as high as 1355mm. If the pedals with fixed pedal structure are adopted, the height of the lowest step from the station platform is too large, which will affe...

AI Technical Summary

Problems solved by technology

This set of pedal actions can be realized by adding an electro-pneumatic module, but this will greatly increase the manufacturing cost

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