Cable bridge

Abstract

The invention discloses a cable bridge, comprising two C-shaped steels, the openings of which are placed in opposite, and side walls of the lower ends of the two C-shaped steels are all provided with a through hole, a square tube is arranged between the two C-shaped steels in a lateral manner, bottoms of two ends of the square tube are respectively connected with inner parts of bottom ends of thetwo C-shaped steels, two side walls of the square tube are respectively connected with inner parts of the side walls of the two C-shaped steels, the square tube is in an internal hollow structure, one ends of the two inner piston are all provided with an inner groove, nuts are arranged in the two inner grooves, the two C-shaped steels are connected and fixed with two nuts by respectively passing through two through holes via a bolt, the inner piston can have no concave surface and is fixedly connected with the C-shaped steel by the nuts through the bolt. The cable bridge of the invention has the advantages of light material quality, inflaming retarding, heat resistance, high mechanical strength, insulation and corrosion resistance.

Description

Cable tray Technical field: The invention relates to a cable tray. Background technique: Cable trays are generally suitable for large-scale enterprises, large-scale engineering transformation, cable erection, large-scale bridges, cable laying of subways, and offshore drilling. Most of the existing cable trays are made of integral metal frames, which not only makes the overall structure heavy, but also expensive in cost, which is not conducive to transportation, assembly and disassembly, and widespread use. If used in cable erection, because the cable tray is exposed to the air for a long time, it is easy to rust and has no insulation; the other type, and because the square tube and the C-shaped steel use glue fixed connection method, the reason is The fixing strength is completely determined by the special glue, and the special glue is expensive, the glue will be easily aging due to long-term exposure in the air, so there is a great safety risk, and the service life is short ...

AI Technical Summary

Problems solved by technology

Most of the existing cable trays are made of integral metal frames, which not only makes the overall structure heavy, but also expensive, which is not conducive to transportation, assembly and disassembly, and wide use

If it is used in cable erection, it will be easily corroded and has no insulation performance due to the long-term exposure of the cable bridge to the air; another type, and because the square tube and the C-shaped steel are fixed by glue. The fixing strength is completely determined by the special glue, and the special glue is expensive, and the glue will be easily aged in the air due to long-term exposure, so there is a big safety hazard, and the service life is short and the effect is not good

There are also inner pistons used in the square tube, but they need to be fixed on both sides of the square tube, which reduces the strength of the square tube and is easy to break; and the inner piston is easy to slip, and the overall cable bridge has a lower pressure bearing capacity.

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