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Pressure-resistant optical cable

An optical cable and pressure-resistant technology, applied in the directions of light guides, optics, optical components, etc., can solve the problems of high cost and heavy weight, and achieve the effect of improving the pressure resistance performance and good buffering effect.

Active Publication Date: 2022-03-25
SHENZHEN XINAOKE CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the present invention proposes a pressure-resistant optical cable, which solves the problems of heavy weight and high cost caused by single-layer or multi-layer metal strips used in GYTA and GYTS optical cables in the prior art

Method used

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  • Pressure-resistant optical cable

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 As shown, a pressure-resistant optical cable is sequentially provided with an optical unit 1, a skeleton 2, a strength member 3 and a sheath 4 from the inside to the outside. As a result, in order to improve the waterproof performance of the optical cable, the gap between the bundle tube and the optical fiber is usually filled with water-blocking yarn or water-blocking ointment.

[0034] The skeleton has an axial through hole 21 in the center, and the optical unit is arranged in the through hole along the axial direction. The skeleton is evenly provided with 2n limiting grooves 22 in the circumferential direction, and strip-shaped protrusions 23 are formed between the limiting grooves. , further, the strip-shaped raised portion is horizontal.

[0035] There are n reinforcement pieces, which are evenly distributed in the circumferential direction of the frame. Each reinforcement piece is composed of an arc portion 31 and two abutment portions 32. The ar...

Embodiment 2

[0043] The difference between embodiment 2 and embodiment 1 is that, as figure 2 As shown, the middle part of the arc-shaped portion forms an arched protrusion outward, and the arched protrusion abuts against the inner walls of the corresponding two adjacent reinforcing portions.

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Abstract

The invention discloses a pressure-resistant optical cable which is sequentially provided with an optical unit, a framework, a reinforcing piece and a sheath from inside to outside, and the optical unit is formed by combining one or more optical fibers penetrating in a beam tube; an axial through hole is formed in the center of the framework, the optical unit is arranged in the through hole in the axial direction, limiting grooves are evenly formed in the framework in the circumferential direction, and a strip-shaped protrusion is formed between every two limiting grooves; the reinforcing parts are uniformly distributed in the circumferential direction of the framework, each reinforcing part is composed of an arc-shaped part and two abutting parts, each arc-shaped part arches outwards, the two abutting parts are semicircular, arches towards the two sides and are connected to the two ends of the arc-shaped part respectively, and the other ends of the two abutting parts are adaptively fixed to the limiting grooves in an abutting mode; and the sheath is extruded outside the reinforcer. The pressure-resistant optical cable is light in weight, external force can be well buffered through cooperation of the reinforcing piece and the reinforcing part, quick recovery can be achieved after the external force is removed, and the pressure-resistant effect is good.

Description

technical field [0001] The invention belongs to the field of optical cables, in particular to a pressure-resistant optical cable. Background technique [0002] The optical cable is composed of a cable core and a sheath. It is used for signal transmission, that is, one or more optical fibers are used to form the cable core, and then a sheath is extruded outside it. The function of the sheath is mainly to weaken the external environment. For the impact on the cable core, in order to improve the waterproof performance and pressure resistance performance of the optical cable, a waterproof layer and a metal layer are usually set in the optical cable. [0003] The existing pressure-resistant optical cables are mainly wrapped with a layer of metal strips, such as aluminum strips or stainless steel strips, on the outside of the cable core, which are called GYTA and GYTS optical cables respectively. In areas with harsh environments such as mines and seabeds, optical cables may be un...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
CPCG02B6/443G02B6/4432G02B6/4427G02B6/44384Y02A30/00
Inventor 费文彬
Owner SHENZHEN XINAOKE CABLE