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Optical cable having metal corrugated pipe protective sheath

A technology of metal bellows and protective sleeves, applied in the direction of fiber mechanical structure, etc., can solve problems such as communication interruption, low resistance to pulling, and easy breakage of optical fibers

Inactive Publication Date: 2003-07-16
上海科星自动化技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: since a bundle in the optical cable of the prior art can contain one or more strands of optical fiber, these fibers are placed in a flexible protective sheath, usually the flexible protective sheath is made of polyethylene or polyester It is made of vinyl chloride or other plastic materials, so the ability to resist pulling is low, and the optical fiber is easy to break, causing communication interruption. When the optical cable is twisted, the rigid protective sleeve is easily broken, causing permanent damage to the optical cable

Method used

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  • Optical cable having metal corrugated pipe protective sheath
  • Optical cable having metal corrugated pipe protective sheath

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Embodiment Construction

[0005] like figure 1 As shown, an optical cable with a metal bellows protective sheath of the present invention includes a flexible protective sheath 1 and a rigid protective sheath 2 in the prior art, wherein the flexible protective sheath 1 is provided with an optical fiber bundle 3, The optical fiber bundle 3 includes more than one strand of optical fiber, the rigid protective sheath 2 is arranged on the outer circumference of the flexible protective sheath 1, and the rigid protective sheath 2 is made of metal material. In the present invention In a preferred embodiment, the rigid protective sleeve 2 is made of zinc material, the rigid protective sleeve 2 is a metal bellows, and the section of the rigid protective sleeve 2 in the length direction of the optical cable is corrugated. A casing 4 is arranged on the outside of the rigid protective sheath 2, and the casing 4 is made of polyvinyl chloride.

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Abstract

An optical cable with corrugated metallic protection sheath is composed of bundle of optical fibrs, a corrugated metallic protection sheath, and a sleeve tube made of plastics. Its advantages are high torsion strength and high corrosion resistance.

Description

Technical field: [0001] The invention relates to an optical element, in particular to the manufacture of an optical cable, especially an optical cable with a metal bellows protective sleeve. Background technique: [0002] A bundle in the optical cable of the prior art can contain one or more strands of optical fiber, and these fibers are placed in a flexible sheath, usually the flexible sheath is made of polyethylene or polyvinyl chloride or other plastic materials, for To enhance the ability of the optical cable to resist pulling, it was proposed to add a rigid protective sheath outside the flexible sheath. Invention content: [0003] The technical problem to be solved by the present invention is: since a bundle in the optical cable of the prior art can contain one or more strands of optical fiber, these fibers are placed in a flexible protective sheath, usually the flexible protective sheath is made of polyethylene or polyester It is made of vinyl chloride or other plas...

Claims

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Application Information

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IPC IPC(8): G02B6/44
Inventor 张汶
Owner 上海科星自动化技术有限公司
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