Pressure-resistant and vibration-resistant optical cable

Abstract

The invention belongs to the technical field of ribbon optical cables and particularly relates to a pressure-resistant and vibration-resistant optical cable. The optical cable comprises an outer cladding layer, an inner cladding layer and a cable core assembly, wherein the inner cladding layer is located in the outer cladding layer, an anti-vibration hoop is arranged between the outer cladding layer and the inner cladding layer and comprises a pair of outer hoops and a pair of inner hoops; the pair of outer hoops are distributed in a bilateral symmetry mode, a distance is reserved between the two ends of the two outer hoops, and the pair of inner hoops are distributed in an up-down symmetry mode and attached to the inner walls of the outer hoops in a sliding mode; an anti-vibration hoop is arranged between an outer cladding and an inner cladding, the anti-vibration hoop is composed of an outer hoop and an inner hoop and is of a two-layer structure, the diameter of an outer layer structure composed of the two outer hoops is reduced after the outer layer structure is pressed, part of vibration is relieved under the action of the stress of the outer layer structure, and the residual vibration is relieved by further reducing the diameter of the inner layer structures of the two inner hoops, and when the vibration is weakest, the whole anti-vibration hoop restores to the original shape, so external vibration is resisted, and the internal cable core assembly is protected.

Description

technical field [0001] The invention belongs to the technical field of ribbon optical cables, in particular to a pressure-resistant and vibration-resistant optical cable. Background technique [0002] There are multiple strands of cable core inside the ribbon cable. Except for the cable core, the rest of the structure of the ribbon cable is mainly used to protect the cable core, such as waterproof, anti-bite, compressive, flame-retardant, etc. In actual use, the ribbon cables laid at the bottom of the bridge, near the railway, etc. will also be subjected to continuous or intermittent vibrations, which will cause the cable core to be in a state of slight jump. Compared with the ribbon cables in a static state, this environment The lower ribbon cable has a large signal attenuation and a short life. Contents of the invention [0003] The purpose of the present invention is to provide a pressure-resistant and anti-vibration optical cable, which can buffer vibration layer by l...

AI Technical Summary

Problems solved by technology

In actual use, the ribbon cables laid at the bottom of the bridge, near the railway, etc. will also be subjected to continuous or intermittent vibrations, which will cause the cable core to be in a state of slight jump. Compared with the ribbon cables in a static state, this environment The signal attenuation of the lower ribbon cable is large, and the service life is short

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