Tube Caps for Wrist Support Devices

Abstract

The invention relates to the technical field of high-speed electrified railway catenary, in particular to a pipe cap for a wrist-arm support device, which has a pipe cap body made of nylon material, and the pipe cap body includes a U-shaped pipe cap outer edge and an inner edge of the pipe cap outer edge. The middle position of the bottom wall is provided with an opening extending upwards and protruding from the U-shaped inner edge of the outer edge of the cap. The lower part of the outer wall of the inner edge of the cap is provided with internal threads, and the outer wall of the inner edge of the cap The upper part of the upper part is provided with an inner wedge groove; the cap also has a convex nylon bushing that can be clamped in the gap between the outer edge of the cap and the inner edge of the cap, and the lower part of the inner wall of the bushing An external thread matching the internal thread is provided, and an external wedge groove matching the internal wedge groove is provided on the upper part of the inner wall of the bushing. The tube cap for the wrist-arm supporting device can be manually disassembled and assembled on site, is easy to operate, is not easy to fall off, and has high safety and reliability.

Description

technical field [0001] The invention relates to the technical field of high-speed electrified railway catenary, in particular to a pipe cap for a wrist-arm support device. Background technique [0002] my country has a vast geography, great environmental differences, and environmental pollution is becoming increasingly serious. The sewage and dust on the inner surface of the arm support device often cannot be removed in the high-speed electrified railway catenary. [0003] Pipe caps are usually used in conjunction with wrist and arm supports. In the high-speed rail catenary, most of them use soft PVC pipe caps. The assembly method is a flexible connection, which is light in weight and easy to fall off. Instead of using NA and NB caps, because the NA and NB caps are connected with the wrist arm support in an interference connection and cannot be dismantled, it is impossible to clean the dust and pollutants on the surface of the parts in the high-speed rail catenary site, and...

AI Technical Summary

Problems solved by technology

High-speed electrified railway catenary often has the phenomenon that sewage and dust on the inner surface of the wrist arm support device cannot be removed

[0003] Pipe caps are usually used in conjunction with wrist and arm supports. In the high-speed rail catenary, most of them use soft PVC pipe caps. The assembly method is flexible connection, which is light in weight and easy to fall off.

Instead of using NA and NB caps, because the NA and NB caps are connected with the wrist arm support in an interference connection and cannot be dismantled, it is impossible to clean the dust and pollutants on the surface of the parts in the high-speed rail catenary site, and the corrosion resistance is reduced , bringing unnecessary hidden dangers to the catenary

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