An adjustable-length safety escape hammer for trams

Abstract

The invention discloses an adjustable-length safety escape hammer for trams and its placement frame, relates to the technical field of trams, and includes a fixing plate whose outer surface is fixedly connected with a clamping mechanism. The top of the tightening mechanism is provided with a hammer body, and the bottom of the hammer body is provided with a propulsion mechanism, and the propulsion mechanism includes a holding cylinder, a placement plate, a reduction motor, a threaded push rod, a threaded push cylinder, a limit groove, a limit block, The first limiting ring, heat dissipation hole and through hole, the bottom surface of the hammer body is fixedly connected with the upper surface of the threaded push cylinder, the through hole is set on the upper surface of the threaded push cylinder, and the limit groove is set in the through hole The inner side wall of the threaded push tube, the bottom end of the threaded push tube goes through the through hole and extends to the inside of the handle tube, the limit block is fixedly connected with the outer surface of the threaded push tube, and the limit block is snapped into the limit groove internal. The length-adjustable safety escape hammer for trams and its placement frame have the advantages of adjustable length and improved chiseling force.

Description

technical field [0001] The invention relates to the technical field of trams, in particular to a safety escape hammer for trams with adjustable length. Background technique [0002] Tram is a light-duty rail transit vehicle that is driven by electricity and runs on the track. Tram is a kind of public transportation, also known as street tram, or tram for short. It is a kind of light rail. The train generally does not exceed five sections. However, because it runs on the street, it takes up road space. In addition, some cable cars running on the urban rails can also be regarded as a kind of street tram. The tram is driven by electricity, and the vehicle does not emit exhaust gas, so it is a pollution-free environmentally friendly means of transport. [0003] The main difference between modern trams and old-style trams is that they not only have a distinctive modern appearance, but also have light weight, fast speed, and air-conditioning in the compartments. Modern tram syste...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to make up for the deficiencies in the prior art, and to provide a safety escape hammer for trams with an adjustable length. During the process, due to the short length, the chiseling force is not enough, which affects the escape efficiency.

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