Fireproof and compressive cable

Abstract

The invention discloses a fireproof and compressive cable which comprises an outer cable protective layer. A cable installation cavity is in the outer cable protective layer. A cable core wire is arranged in the cable installation cavity. The outer opposite faces of the cable core wire are provided with an arc-shaped convex part respectively. Each arc-shaped convex part extends along the longitudinal direction of the cable core wire. More than one rotating groove is arranged equidistantly on both sides of the arc-shaped convex parts. A rotating shaft hole is arranged in each side of the innerwall of each rotating groove. A telescopic rod is arranged into each rotating groove. A rotating shaft is arranged on each side of the bottom of each telescopic rod. Each rotating shaft is sleeved bya torsion spring. Each rotating shaft is elastically arranged in a rotating shaft hole through a torsion spring. According to the invention, structures located on the upper and lower ends of the cablehave the functions of compression resistance and buffering; in the event of fire, an inner protective layer can be used for internal secondary protection to improve the fireproof performance of the cable core wire; the inner protective layer is folded when not used, which does not affect normal heat dissipation of the cable core wire.

Description

technical field [0001] The invention relates to a cable, in particular to a fireproof and pressure-resistant cable. Background technique [0002] A cable, usually made of one or more mutually insulated conductors and an outer insulating layer, is a wire that transmits power or information from one place to another. During the use of cables, they are often crushed and damaged and burned when exposed to external flames. In order to solve the problem of being damaged under pressure and burning in case of fire, the current cable has a setting for the outer protective layer of the cable core wire, so that the outer protective layer not only has high strength, but also has better fire resistance, but This method will greatly complicate the structure of the outer protective layer. When there is no pressure and no flame, these structural layers in the outer protective layer will not play a role at all. Instead, the cable core will be damaged due to more structures. The heat dissip...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is a fire-proof and compression-resistant cable, which has a very good heat dissipation capacity when not in use, and can effectively protect the inner core wire under pressure and flames, and simplify the structure of the outer protective layer of the cable , which effectively solves the problem of complex and useless structure of the external protective layer in the prior art

Images