An improved structure for preventing the entry of foreign objects between the inner and outer walls of the train

Abstract

The invention discloses an improved structure for preventing foreign materials from entering the gap between an inner wall body and an outer wall body of a train. A manual braking machine box body ismounted on the outer wall body; a manual braking hood is arranged on the inner wall body; coaxial through holes are respectively formed in the manual braking hood, the manual braking machine box body,the outer wall body and the inner wall body; a worm shaft sequentially penetrates through the through holes; and a sleeve wrapping the worm shaft is arranged between the inner wall body and the outerwall body. Compared with the prior art, the improved structure for preventing foreign materials from entering the gap between an inner wall body and an outer wall body of a train, disclosed by the invention, has the advantages that even the gap between the inner wall body and the outer wall body is changed, the situation that the sleeve can completely cover the gap can also be guaranteed, so thatthe situation that the foreign materials enter the gap between end walls can be effectively avoided, and fire hazards are avoided; and besides, the foreign materials can be left in the sleeve, are easy to clean and can be cleaned regularly, and the braking performance cannot be influenced.

Description

technical field [0001] The invention relates to an improved structure for preventing foreign objects from entering between inner and outer walls of a train, and belongs to the technical field of train wall structures. Background technique [0002] The connection and installation method of the hand brake device of railway vehicles and the inner end wall panel is a common method for railway passenger cars at present, but this installation method has certain potential safety hazards. When the hand brake device is activated, the crank handle is pulled out of the inner end wall cover box At the same time, ensure that the minimum diameter of the worm shaft is Φ25mm and the maximum diameter is Φ35mm can pass through the center hole of the cover box. Therefore, the center opening of the cover box of the hand brake device has always been an oblong hole of 56mm×45mm. In the past, a wooden connection was provided at the back of the cover box. [0003] If fire sources such as cigarette ...

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Problems solved by technology

[0002] The connection and installation method of the hand brake device of railway vehicles and the inner end wall panel is a common method for railway passenger cars at present, but this installation method has certain potential safety hazards. When the hand brake device is activated, the crank handle is pulled out of the inner end wall cover box At the same time, ensure that the minimum diameter of the worm shaft Φ25mm and the maximum diameter of Φ35mm can pass through the center hole of the cover box. Therefore, the center opening of the cover box of the hand brake device has always been an oblong hole of 56mm×45mm.

[0003] If fire sources such as cigarette butts or other flammable substances enter, the measures taken on the initial vehicle are to be blocked by the inner round hole of the skid behind the cover box, and will not fall between the inner and outer end wall panels. However, because the steel structure of the vehicle body is welded Errors and wall panel installation errors, the gaps in the walls are not uniform in size, so the skids cannot be used in all walls, which leads to gaps between the skids and the inner wall or between the skids and the hand brake cover, It is easy to enter fire sources such as cigarette butts or other flammable substances. The thickness of the skids is not suitable. Some vehicles actually installed skids cannot fill the gap between the cover box and the hand brake box, so there are fire sources such as cigarette butts or other Inflammable substances entering the inner and outer end walls through the holes of the cover box will cause fires in wires, cold-proof materials, etc., resulting in accidents

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