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Variable-diameter thermoplastic optical cable protection sleeve

A technology of optical cable protection and casing, applied in the direction of optics, light guides, optical components, etc., can solve the problems of foam aging shrinkage, mud falling off, reappearance, etc., and achieve the effect of prolonging service life, not easy to aging, and long service life

Inactive Publication Date: 2018-10-23
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In this installation method, there will be gaps between the steel pipe and the soft protection tube and between the soft protection tube and the optical cable. In order to prevent rainwater, dust or even small animals from entering the gap, mud or foam is often used to fill the gap in the actual construction process. Simple filling, however, after a certain period of time, the mud loses its viscosity and will fall off naturally, and the foam will also age and shrink, resulting in the reappearance of the gap, which needs to be filled again

Method used

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  • Variable-diameter thermoplastic optical cable protection sleeve
  • Variable-diameter thermoplastic optical cable protection sleeve
  • Variable-diameter thermoplastic optical cable protection sleeve

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Embodiment Construction

[0019] In this embodiment, a variable-diameter thermoplastic optical cable protection sleeve is a step-shaped tube body 21 composed of a sleeve A1 with a smaller diameter and a sleeve B2 with a larger diameter. In order to ensure good heat-melt performance, The pipe body is made of TPE (TPV is also applicable) thermoplastic material, and the outer and inner pipe walls of casing A1 and casing B2 are respectively coated with anti-corrosion layer 3 and waterproof layer 4 to prolong the service life of the pipe body and Protect the optical cable 5. At the same time, in order to facilitate the heat-melting convenience of the tube body, the thickness of the sleeve A1 and the sleeve B2 are both 1mm (usually 1-2mm, the thickness is too small, which is not conducive to the adhesion of the tube body, and the thickness is too large. Increase the heat fusion time and construction difficulty, but also increase the cost of materials).

[0020] In this embodiment, in order to cut the lengths...

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Abstract

The invention relates to the field of optical cable accessory equipment, and specifically relates to a variable-diameter thermoplastic optical cable protection sleeve. The variable-diameter thermoplastic optical cable protection sleeve is provided with a step-shaped tube body, and is characterized in that one end of the tube body is a sleeve A with small diameter, the other end of the tube body isa sleeve B with large diameter, the junction of the sleeve A and the sleeve B is provided with a sloping transition surface; the outer tube walls of the sleeve A and the sleeve B are coated with an anti-corrosion layer, and the outer tube walls of the sleeve A and the sleeve B are further provided with scale lines; and the tube body is made of a thermoplastic material. The variable-diameter thermoplastic optical cable protection sleeve performs natural adhesion and sealing on a wrapped object after hot melting, is not easy to be aged, long in service life and good in sealing performance and has good application prospects.

Description

technical field [0001] The invention relates to the field of optical cable accessory equipment, in particular to a variable-diameter thermoplastic optical cable protective sleeve. Background technique [0002] Optical cables are widely used in communication and other fields because of their advantages such as large communication capacity, good confidentiality and strong adaptability. In the construction of optical cable burying, at the buried end or tap point, the optical cable needs to go out of the ground to connect or tap the terminal equipment. Add a layer of soft protective tube with the end protruding from the steel pipe to prevent the surface of the optical cable from directly contacting the steel pipe port and causing friction damage. [0003] In this installation method, there will be gaps between the steel pipe and the soft protection tube and between the soft protection tube and the optical cable. In order to prevent rainwater, dust or even small animals from ent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
CPCG02B6/443G02B6/44384
Inventor 柯彬杨厚祥陈长魏雄俊黄河余洋陈文雄杨银王航彭芳徐麦
Owner STATE GRID CORP OF CHINA
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