CN203275725U - Reinforced rubber-covered optical cable - Google Patents

Abstract

The utility model provides a reinforced rubber-covered optical cable for solving problems that the fibers of a conventional butterfly optical cable are liable to fracture or damage and water penetration. A rubber-covered optical cable unit is composed of a fiber disposed in the center, an inner sheath which is coated on the periphery of the fiber and has a cross section in a shape of a butterfly, and reinforcement cores which are arranged inside the inner sheath and symmetrically distributed relative to the fibers. A water blocking layer, a bending resistant tubular reinforcement member and a sheath layer are successively coated on the rubber-covered optical cable unit from the outside to the inside. The bending resistant tubular reinforcement member is wound tight on the water blocking layer in a wrapping manner so that the tension, bending resistance and anti-compression properties of the cable are enhanced, thereby creating conditions for the indoor and outdoor use of the cable.

Description

A kind of reinforced covered wire cable

Technical field

The utility model belongs to the communications optical cable technical field, specifically a kind of reinforced covered wire cable.

Background technology

The cross section that existing covered wire cable comprises optical fiber, be coated on the optical fiber periphery is the sheath of rubber-insulated wire, is arranged in sheath and is positioned at the strengthening core of optical fiber both sides.Wherein, strengthening core is made by metal or nonmetallic materials.This kind optical cable in use exists as following shortcoming: 1. in use, optical cable is being met external impacts moment, and external force acts directly on optical fiber, easily causes the damage of fibercuts or optical fiber; 2. optical cable is being drenched with rain or is being in wet environment, and moisture easily infiltrates into optical cable, causes the communication quality variation.

Summary of the invention

The technical assignment of the technical problems to be solved in the utility model and proposition is the defective that overcomes the optical fiber easy fracture of existing covered wire cable or damage, easily permeated by water, and a kind of tension, bending resistance, resistance to compression, moistureproof reinforced covered wire cable are provided.For achieving the above object, pipeline covered optical cable of the present utility model, comprise covered wire cable unit (7), this covered wire cable unit, by the optical fiber that is positioned at the center, be coated on optical fiber periphery and xsect and be the inner sheath of butterfly and be arranged on inner sheath and the strengthening core symmetrical with respect to optical fiber forms, it is characterized in that: coat successively from inside to outside water blocking layer, bending resistance tubulose reinforcement, restrictive coating 6 outside the covered wire cable unit.The both sides of described inner sheath (2) form symmetrical groove.

The beneficial effects of the utility model are: by having increased the coating water blocking layer outside the covered wire cable unit, having pricked layer, bending resistance tubulose reinforcement, restrictive coating, strengthened tension, bending resistance, the compressive property of optical cable, used the condition of having created for optical cable in indoor and outdoor.

Description of drawings

Fig. 1 is the optical cable sectional view.

Fig. 2 is the optical cable production technological process.

Embodiment

Indoor covered wire cable of the present utility model, it has covered wire cable unit 7, this covered wire cable unit 7 by the optical fiber 3 that is positioned at the center, be coated on optical fiber 3 peripheries and xsect and be the inner sheath 2 of butterfly and be arranged on inner sheath 2 and the strengthening core 1 symmetrical with respect to optical fiber 3 forms, 7 coat successively from inside to outside water blocking layer 4(and can be made by strip material, also can be made by yarn shape material in the covered wire cable unit), bending resistance tubulose reinforcement 5, restrictive coating 6, restrictive coating 6 is extrudable outside metal tube layer 5.What the metal tube layer adopted is that wrapped mode is wrapped on water blocking layer, can strengthen the bending resistance of optical cable, compressive property.

Production run:

At first with 2 one-tenth covered wire cables of optical fiber 3 and strengthening core 1 sheath together, then with covered wire cable outsourcing waterstop, the wrapped reinforcement of tubular metal, last integral body is carried out oversheath.

Claims (2)

1. reinforced covered wire cable, it comprises covered wire cable unit (7), this covered wire cable unit (7) by the optical fiber that is positioned at the center (3), be coated on optical fiber periphery and xsect and be the inner sheath (2) of butterfly and be arranged on inner sheath (2) and the strengthening core (1) symmetrical with respect to optical fiber forms, it is characterized in that: coat successively from inside to outside water blocking layer (4), bending resistance tubulose reinforcement (5), restrictive coating (6) outside covered wire cable unit (7).

2. described reinforced covered wire cable according to claim 1, it is characterized in that: the both sides of described inner sheath (2) form symmetrical groove.