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Easy-to-peel yarn-free branch optical cable and preparation method thereof

An easy-stripping and optical cable technology, which is applied in the direction of light guides, optics, and optical components, can solve problems such as cumbersome production processes, inconvenient construction, and puncture marks on bundle tubes, and achieve the goal of saving product production time, saving production costs, and facilitating stripping Effect

Pending Publication Date: 2022-01-18
ZHEJIANG FUCHUNJIANG PHOTOELECTRIC SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The most used optical cable structure is the layer-twisted optical cable. Due to the layer-twisted optical cable, the process equipment is more complicated, the production process is cumbersome, and the material consumption is high. In the cable core stranding stage, when the yarn binding machine is running at high speed, it is easy to be bundled. The tube will cause puncture marks, especially some bundle tubes with small diameter and thin wall thickness, which may directly break the optical fiber in the tube
And the cable core needs to be filled with ointment, which brings inconvenience to the subsequent construction

Method used

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  • Easy-to-peel yarn-free branch optical cable and preparation method thereof
  • Easy-to-peel yarn-free branch optical cable and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 As shown, a kind of easy-stripping non-bracket branch optical cable of the present invention includes an optical cable prepared by adopting a stranded structure, and the optical cable includes an optical fiber 1, a water-blocking material, a loose tube 3, a strength member 4 and an outer sheath 8. More than one strand of optical fiber 1 is arranged in the loose tube 3, and each loose tube 3 is filled with fiber paste 2, and the optical cable can be a semi-dry structure or a full-dry structure;

[0038] The water-blocking material includes water-blocking yarn 6 and water-blocking tape 7, more than one loose tube 3 and more than one strand of optical fiber 1 to form the cable core, and when the outer sheath 8 shrinks, the cable core is fixed by the water-blocking tape 7 Forming, such a cable core has no yarn binding, and after the cable core is stripped out, the sleeve will automatically disperse;

[0039] The outer sheath 8 is located on both sides of t...

Embodiment 2

[0047] Such as figure 2 As shown, in this embodiment, the structure is the same as that of Embodiment 1, except that the number of reinforcements is increased, two on each side, and the number is not specifically limited, and may be three or more.

[0048] The beneficial effects of the present invention are:

[0049] 1. The cable core does not use tie yarn, and the bundle tube has no tie marks;

[0050] 2. The cable core is not filled with ointment, which is convenient for subsequent construction;

[0051] 3. The optical cable has no metal tape armor, light weight and low cost;

[0052] 4. The surface of the reinforcement sheath has a color strip sheath material, which is easy to peel off, and the cable sheath can be torn off by hand;

[0053] 5. Using the "SZ" twisting method, after the cable core is stripped out, it is very easy to separate the casing, and the "open skylight" method can also be used to find the required casing and lead out the optical fiber to achieve th...

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Abstract

The invention discloses an easy-to-peel yarn-free branch optical cable and a preparation method thereof, the easy-to-peel yarn-free branch optical cable comprises an optical cable prepared by adopting a layer-stranded structure, the optical cable comprises optical fibers (1), a water-blocking material, loose tubes (3), reinforcers (4) and an outer sheath (8), more than one strand of optical fibers (1) are arranged in the loose tubes (3), and each loose tube (3) is filled with fiber paste (2). A conventional optical cable raw material is adopted, the production process and the forming method are improved, the outer surface of the cable core is free of yarn binding, when the outer sheath is formed and contracted, the cable core is fixed and formed through a water-blocking tape (7), the cable core is free of yarn binding, after the cable core is peeled off, the sleeve can be automatically scattered and can be peeled off at the color strip position, and the optical cable sheath can be torn off with hands; the optical fibers are easy to pull out, and the optical cable is flexible in structure, free of metal tape armoring, light in weight, low in cost, excellent in mechanical performance and environmental performance, rapid and convenient to construct and capable of effectively overcoming many defects in the prior art.

Description

technical field [0001] The invention relates to the field of optical cables, in particular to an easy-stripping branch optical cable without yarn binding. Background technique [0002] Optical fiber cable (optical fiber cable) is manufactured to meet optical, mechanical or environmental performance. Optical fiber cable is a cable core composed of a certain number of optical fibers in a certain way, covered with a sheath, and some are also covered with an outer sheath to achieve A communication line for optical signal transmission. The basic structure of an optical cable is generally composed of several parts such as a cable core, a reinforced steel wire, a filler, and a sheath. In addition, there are components such as a waterproof layer, a buffer layer, and an insulated metal wire as required. [0003] The most used optical cable structure is the layer-twisted optical cable. Due to the layer-twisted optical cable, the process equipment is more complicated, the production p...

Claims

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Application Information

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IPC IPC(8): G02B6/44
CPCG02B6/443G02B6/4432G02B6/4486G02B6/44384
Inventor 何军邵君书王爽汪瑞薄崇飞
Owner ZHEJIANG FUCHUNJIANG PHOTOELECTRIC SCI & TECH