CN2237856Y

CN2237856Y - Metal reinforced part loose sleeving frame type full-filled optical cable

Info

Publication number: CN2237856Y
Application number: CN 95208473
Authority: CN
Inventors: 刘成钢; 曹祥; 赵仕会
Original assignee: ZHANGZHEN OPTICAL FIBRE CABLE FACTORY BEIJING
Current assignee: ZHANGZHEN OPTICAL FIBRE CABLE FACTORY BEIJING
Priority date: 1995-04-26
Filing date: 1995-04-26
Publication date: 1996-10-16
Anticipated expiration: 2005-04-26

Abstract

The utility model relates to a loose tube framework type fully filled optical cable with metal reinforced parts, which has loose tube fiber, a waterproof strip, and an outer sheath made of high pressure polyethylene. The middle part of the optical cable has a star-shaped framework made of high pressure polyethylene; the steel wire reinforced parts are arranged on the center of the framework; a plurality of grooves are distributed uniformly along the circumference of the framework; the loose tube fiber is placed inside the grooves of the framework; ointment is filled inside the grooves; the waterproof strip is winded and covered round the external circle of the framework; a bifacial plastic-bonding wrinkle steel strip is covered round the external circle of the framework in longitudinal direction. The utility model has the advantages of moisture resistance, water resistance, lateral pressure resistance, and impact resistance.

Description

The skeleton fully filled cable of metal reinforcement pine cover

The utility model relates to the skeleton fully filled cable of a kind of metal reinforcement pine cover, and the optical fiber in this optical cable is placed in the skeleton grooves.

Optical cable commonly used is a metal reinforcement pine shell type fully filled cable; this optical cable as reinforcement, and is rationally arranged loose tube fiber around it, its outer wrapped waterstop by steel strand wires; and factice for filling, waterstop has plastic-aluminum integrated protection layer and the high pressure polyethylene outer jacket that extrudes outward.This optical cable has good damp proof insulation sealing and bendability preferably, but lateral pressure resistant is indifferent, in transportation and erection construction, the problem that optical fiber fractures takes place easily.

The purpose of this utility model is to propose the skeleton fully filled cable of a kind of metal reinforcement pine cover, and this optical cable can overcome above-mentioned deficiency, improves the lateral pressure resistant performance of optical cable.

The purpose of this utility model is achieved in that the skeleton fully filled cable of a kind of metal reinforcement pine cover, loose tube fiber, waterstop and high pressure polyethylene outer jacket are arranged, there is the star skeleton of a high pressure polyethylene at the middle part, the center of this skeleton is the steel wire reinforcement, place described loose tube fiber in a plurality of grooves that are uniformly distributed along the circumference, the groove of this skeleton, factice for filling in the groove, the wrapped waterstop of skeleton cylindrical, the two-sided laminating wrinkle steel band of vertical bag.Because loose tube fiber is placed in the groove of skeleton the ability of optical cable lateral pressure resistant is improved greatly, can effectively prevent the fracture generation of problem of in transportation and erection construction optical fiber.

Compared with the prior art the utility model has protection against the tide, waterproof, lateral pressure resistant, shock proof advantage.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1, schematic cross-section of the present utility model

Two of Fig. 2, embodiment of the present utility model

Referring to accompanying drawing, there is the star skeleton 7 of a high pressure polyethylene at the utility model middle part, the center of this skeleton is a steel wire reinforcement 9, places described loose tube fiber in a plurality of grooves 10 that are uniformly distributed along the circumference, the groove of this skeleton, and factice for filling 6, this loose tube fiber is to place many single-mode fibers 4 in the sleeve pipe 8 of plastics, and factice for filling 5, the wrapped waterstop 3 of this skeleton cylindrical, the two-sided laminating wrinkle steel band 2 of vertical bag, outermost layer is a high density polyethylene sheath 1.Also can adopt the flame-proof PVC outer jacket.Can uniform four grooves on the circumference of described skeleton, also can uniform six grooves.This skeleton has superior lateral pressure resistant, shock resistance, anti-physical property such as fracture, and the protective layer that ointment is filled has good protection against the tide, waterproof action.

Claims

1, the skeleton fully filled cable of a kind of metal reinforcement pine cover, reinforcement, loose tube fiber (4), waterstop and high pressure polyethylene outer jacket (1) are arranged, it is characterized in that, there is the star skeleton (7) of a high pressure polyethylene at the middle part, and the center of this skeleton is steel wire reinforcement (9), and a plurality of grooves (10) are uniformly distributed along the circumference, place described loose tube fiber in the groove of this skeleton, factice for filling in the groove, the wrapped waterstop of skeleton cylindrical (3), vertical bag two-sided laminating wrinkle steel band (2).

2, the skeleton fully filled cable of metal reinforcement pine cover according to claim 1 is characterized in that uniform four grooves on the circumference of described skeleton.

3, the skeleton fully filled cable of metal reinforcement pine cover according to claim 1 is characterized in that uniform six grooves on the circumference of described skeleton.