A mechanical release device for a folding handle

Abstract

A mechanical release device for a folding handle comprise a folding handle includes a folding handle. A hexagonal nut, a spring washer and a flat washer are mounted at the upper end of a rotating shaft. The rotating shaft is flexibly mounted in a fixing sleeve through upper and lower units, the flat washer and an O-shaped sealing ring, and rotates in the fixing sleeve. The fixing sleeve is fixed at the opening of the vehicle floor by an upper and lower pressing nut, another O-shaped sealing ring and a sealing flat washer, and the fixing sleeve and the rotating shaft penetrate the upper and lower parts of the floor. A lower end of that rotating shaft is connected with a universal coupling by an elastic cylindrical pin, wherein the universal coupling is composed of two universal joints, a hexagonal hole sleeve and a hexagonal rod, the two universal joints are respectively connected with a hexagonal hole sleeve and a hexagonal rod by an elastic cylindrical pin, the hexagonal hole sleeve and the hexagonal rod are cooperated for transmitting torque, and the hexagonal hole sleeve and the hexagonal rod are axially telescopic. A lower end of that universal coupling is connected with the upper part of the transition coupling head through an elastic cylindrical pin, and the lower end of the transition coupling head is connected with a release valve on the brake air supply pipe, and another handle is installed on the release valve to realize the release and recovery operation under the vehicle.

Description

technical field [0001] The invention belongs to the technical field of rail transit passenger car brake control units, in particular to a folding handle mechanical release device for controlling air brakes used on rail transit passenger cars. Background technique [0002] [0003] In recent years, in order to save the interior space of the rail transit passenger car, users of rail transit vehicles require that "the handle of the mechanical relief device has a foldable structure, which is easy to install in the end wall of the vehicle." And the handle of the mechanical release device of the existing rail passenger car manufacturer is fixed, not foldable, can only be installed under the vehicle seat, the installation space is limited, and there is a hidden danger that passengers are easy to misuse. It does not meet the "requirements limited to the operation of the driver and passengers to ensure the safe operation of the vehicle", so it is necessary to improve on this ba...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a foldable handlebar mechanical release device for air brake manual release and recovery, through which the mechanical release device can be installed in the end wall of the vehicle, and only limited to the operation of the driver and passengers , to solve the operation safety problem that the traditional mechanical relief device is installed under the vehicle seat, and the passenger is easy to kick and misoperate

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