Field-operation optical cable

Abstract

The invention discloses a field-operation optical cable. The optical cable comprises a casing pipe. A polyurethane sheath sleeves an outer wall of the casing pipe. An inner wall of the polyurethane sheath is provided with a plurality of buffer slots. Two side walls of each buffer slot are bended towards a direction which is far away from a center. A plurality of optical fibers are arranged in the casing pipe. The plurality of optical fibers are twisted on an aramid fiber pipe. An outer wall of the aramid fiber pipe is provided with a plurality of spiral grooves. When the optical cable is rolled and pressed by a vehicle or a drop stone in a field environment, the buffer slots divide a connection portion between the polyurethane sheath and the casing pipe into a plurality of protuberances. When an outer wall of the polyurethane sheath is under stress, the protuberances can be deformed in the two adjacent buffer slots. Through an interaction of an elastic force generated during deformation recovery of the protuberances and pressure, the actual pressure on the casing pipe is greatly reduced so that the optical fiber in the casing pipe is prevented from being pressed and damaged, and the service life of the optical cable in the field environment is prolonged.

Description

technical field [0001] The invention relates to an optical cable, in particular to a field optical cable. Background technique [0002] The military field optical cable is a metal-free optical cable specially designed for use in field operations and complex environments that require rapid routing or repeated retractable use. It is light in weight and easy to carry; it is resistant to tension, pressure, and high in strength-to-weight ratio; softness Good, easy to bend; oil-resistant, wear-resistant, flame-retardant; wide range of applicable temperature, etc., suitable for rapid wiring or repeated retraction of military field communication systems; radar, aviation and ship wiring; oil fields, mines, ports, TV live broadcast , emergency repair of communication lines and other special occasions. [0003] Due to the lack of metal as a supporting structure in the existing optical cables, under complex field environmental conditions, it is difficult to avoid the optical cables bei...

AI Technical Summary

Problems solved by technology

[0003] Due to the lack of metal as a supporting structure in the existing optical cables, under complex field environmental conditions, it is difficult to avoid the optical cables being crushed by heavy objects during use, such as military vehicles, or the oppression of heavy objects such as falling rocks in mountains, which will cause It is seriously damaged and loses its communication function, which hinders the acquisition of real-time information; and the field environment often encounters wind and rain, and ordinary optical cables cannot guarantee its long service life

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