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Central bundle tubular optical cable with special-shaped reinforcement pieces

A reinforcement and tube-type technology, applied in the direction of fiber mechanical structure, etc., can solve the problems of easy gasification at high temperature, sheath porosity, poor bonding performance, etc., and achieve the effect of good water resistance, stable process and low cost

Active Publication Date: 2013-09-18
SUZHOU SHENGXIN OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although a new type of reinforcement has appeared at home and abroad, which is called glass fiber tape, due to the poor bonding performance between the tape and the sheath material, high temperature and easy gasification, etc., it will cause pores in the sheath produced. A large number of defects, so it cannot be used on a large scale

Method used

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  • Central bundle tubular optical cable with special-shaped reinforcement pieces
  • Central bundle tubular optical cable with special-shaped reinforcement pieces
  • Central bundle tubular optical cable with special-shaped reinforcement pieces

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] see Figure 1 to Figure 4 , a central bundle tube optical cable with a special-shaped strength member, which includes: a loose tube 2 located in the center, a special-shaped strength member 1 coated outside the loose tube, and a sheath layer coated on the special-shaped strength member by extrusion 4 and at least one optical fiber 3 in the loose tube; it is characterized in that: the special-shaped reinforcement is a rectangular parallelepiped strip, and the strip has a semicircular cylindrical groove 11, and the special-shaped reinforcement The upper surface 12 is coated with an adhesive coating; there are two special-shaped strength members in the optical cable, and the grooves of the two special-shaped strength members are placed oppositely, the loose tube is located in the groove, and the top of the two special-shaped strength members The surfaces are bonded together; the special-shaped reinforcement is made of raw materials containing the following components and w...

Embodiment 2

[0041] see figure 1 , figure 2 and Figure 5 to Figure 6 , a central bundle tube optical cable with a special-shaped strength member, which includes: a loose tube 2 located in the center, a special-shaped strength member 1 coated outside the loose tube, and a sheath layer coated on the special-shaped strength member by extrusion 4 and at least one optical fiber 3 in the loose tube; it is characterized in that: the special-shaped reinforcement is a rectangular parallelepiped strip, and the strip has a semicircular cylindrical groove 11, and the special-shaped reinforcement The upper surface 12 is coated with an adhesive coating; there are two special-shaped strength members in the optical cable, and the grooves of the two special-shaped strength members are placed oppositely, the loose tube is located in the groove, and the top of the two special-shaped strength members The surfaces are bonded together; the special-shaped reinforcement is made of raw materials containing the...

Embodiment 3

[0050] see figure 1 , figure 2 , Figure 5 and Figure 7 , the central beam tube type optical cable with special-shaped strengthening member is basically the same as the implementation example 2, one of the differences is that the special-shaped strengthening member is covered with an insulating tape 5, and the insulating tape is located between the special-shaped strengthening member and the sheath layer; The insulating belt is a water-blocking belt or a non-woven fabric or a polyester belt; the second difference is that there is a tear rope 6 between the loose tube and the special-shaped reinforcement.

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Abstract

The invention belongs to the technical field of optical cables, and particularly relates to a central bundle tubular optical cable with special-shaped reinforcement pieces. The central bundle tubular optical cable comprises a loose bushing positioned in the center, the special-shaped reinforcement pieces wrapping the loose bushing, a sheath layer wrapping the special-shaped reinforcement pieces in an extrusion manner and at least one light guide fiber positioned in the loose bushing, and is characterized in that the special-shaped reinforcement pieces are cubic strip-type bodies with semicircular columnar grooves; adhesive coating layers are coated on the upper surfaces of the special-shaped reinforcement pieces; two special-shaped reinforcement pieces are arranged in the optical cable, and the grooves of the two special-shaped reinforcement pieces are opposite; the loose bushing is positioned in the grooves; the upper surfaces of the two special-shaped reinforcement pieces are adhered to form a whole; and the special-shaped reinforcement pieces are made of composite materials. The central bundle tubular optical cable has the advantages of simple structure, low cost, stable process, high water resistance, high mechanical strength and high temperature adaptability and is easy to machine; and the quality of a product is stable.

Description

technical field [0001] The invention belongs to the technical field of optical cables, and in particular relates to a central bundle tube type optical cable with a special-shaped reinforcement. Background technique [0002] In the prior art, the central beam tube type optical cable is mainly divided into the following types: 1. The center is a loose tube, and the loose tube is surrounded by a circle of reinforcement, and the outside of the reinforcement is a sheath. Of course, the loose tube and the reinforcement There may also be water-blocking materials, insulating materials, etc., and there may be steel strips, aluminum strips, water-blocking strips, etc. outside the reinforcement. Such optical cables are generally GYXTS, GYXTY, GYXTA and their derivative types. Of course, loose sleeves When the optical fiber in the tube is ribbon-shaped, it is GYDXTS, GYDXTY, and GYDXTA; 2. The center is a loose tube, and the outside of the loose tube is a pair of parallel strength membe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/44
Inventor 沈群华龙燕
Owner SUZHOU SHENGXIN OPTOELECTRONICS TECH
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