CN202583536U

CN202583536U - Multiple-optical-fiber-ribbon loose tube type optical fiber ribbon optical cable

Info

Publication number: CN202583536U
Application number: CN 201220144346
Authority: CN
Inventors: 陈太锁
Original assignee: Anhui Great Electric Limited-Liability Co Of China
Current assignee: Anhui Great Electric Limited-Liability Co Of China
Priority date: 2012-04-09
Filing date: 2012-04-09
Publication date: 2012-12-05
Anticipated expiration: 2022-04-09

Abstract

The utility model discloses a multiple-optical-fiber-ribbon loose tube type optical fiber ribbon optical cable which comprises optical fiber ribbons. A central part is provided with a metal reinforcing element which is wrapped by a PE cushion layer. A plurality of optical fiber ribbons are arranged around the metal reinforcing element in a circle. Each optical fiber ribbon is sleeved by a PBT loose tube. Fiber paste is filled between each optical fiber ribbon and each PBT loose tube. All PBT loose tubes are wrapped by a yarn and non-woven cloth layer. Water blocking ointment is filled between the yarn and non-woven cloth layer and the PBT loose tubes. The yarn and non-woven cloth layer is wrapped by a corrugated steel-plastic composite belt which is wrapped by a PE sheath. Each of the optical fiber ribbons is formed by twisting 4 to 6 optical fibers. According to the utility model, through adding the metal reinforcing element at the central part of the optical cable and adding a steel-plastic composite belt structure in the PE sheath, the optical cable has excellent mechanical performance and environmental performance, an optical fiber structure core number is high, steel belt armored anti-pressure capability is good, at the same time, the water blocking ointment is filled in a cable core, and moisture resisting and water blocking effects of the optical cable are ensured.

Description

A kind of many fibre ribbon pine shell type optical fibre band optical cables

Technical field:

The utility model relates to field fiber, relates in particular to a kind of many fibre ribbon pine shell type optical fibre band optical cables.

Background technology:

Mostly the optical cable of existing fiber belt is that fibre ribbon is with sleeve pipe outward; And the structure of cooperation oversheath, its mechanical property is relatively poor, goes wrong easily when growing apart from backguy; Secondly cable outer sheath adopts the PE sheath usually; Its pressure-proof and snap-resistent ability is relatively poor, in case dug or bump by mistake by mistake, is easy to occur situation such as breakage, fracture.Therefore imagination provides a kind of new construction to solve this problem.

The utility model content:

The purpose of the utility model just provides a kind of many fibre ribbon pine shell type optical fibre band optical cables, and mostly the optical cable that solves the existing fiber belt is that fibre ribbon is with sleeve pipe outward, and cooperates the structure of oversheath; Its mechanical property is relatively poor; Go wrong easily when growing apart from backguy, secondly cable outer sheath adopts the PE sheath usually, and its pressure-proof and snap-resistent ability is relatively poor; In case dug or bump by mistake, be easy to occur the problem of situation such as breakage, fracture by mistake.

The technical scheme that the utility model adopts is:

A kind of many fibre ribbon pine shell type optical fibre band optical cables; Comprise fibre ribbon: central part has a metal reinforcement, and metal reinforcement is wrapped with the PE bed course, has some fibre ribbons round metal reinforcement one circle; Every fibre ribbon all is set with PBT pine sleeve pipe outward; Be filled with fine cream between fibre ribbon and the PBT pine sleeve pipe, all PBT pine sleeve pipes are wrapped with to be pricked yarn and adds nonwoven layer, pricks yarn and adds between nonwoven layer and the loose sleeve pipe of PBT and be filled with the ointment that blocks water; The bundle yarn adds nonwoven layer and is wrapped with the wrinkle composite steel-plastic belt, and the wrinkle composite steel-plastic belt is wrapped with the PE sheath.

Said fibre ribbon is stranded the forming of 4-6 root optical fiber.

Compared with prior art, the beneficial effect of the utility model is:

The utility model is through increasing metal reinforcement at the optical cable central part; And in the PE sheath, increase the structure of composite steel-plastic belt; Can make optical cable have good mechanical property and environmental performance, band structure of optic fibre core number is high, and the steel-tape armouring anti-pressure ability is good; Be full of the cable cream that blocks water in the cable core simultaneously, guaranteed the moistureproof block-water effect of optical cable.

Description of drawings:

Accompanying drawing 1 is the utility model structural representation.

Embodiment:

Below in conjunction with accompanying drawing, the utility model is done further explain through embodiment:

A kind of many fibre ribbon pine shell type optical fibre band optical cables, comprise fibre ribbon: central part has a metal reinforcement 1, and metal reinforcement 1 is wrapped with PE bed course 2; Have some fibre ribbons 3 round metal reinforcement 1 one circles; Every fibre ribbon 3 outer PBT pine sleeve pipes 4 that all are set with are filled with fine cream 5 between fibre ribbon 3 and the PBT pine sleeve pipe 4, and all PBT pine sleeve pipes 4 are wrapped with the bundle yarn and add nonwoven layer 6; Pricking yarn adds between nonwoven layer 6 and the loose sleeve pipe 4 of PBT and is filled with the ointment 7 that blocks water; The bundle yarn adds nonwoven layer 6 and is wrapped with wrinkle composite steel-plastic belt 8, and wrinkle composite steel-plastic belt 8 is wrapped with PE sheath 9, and fibre ribbon 3 is stranded the forming of 4-6 root optical fiber.

The foregoing description is merely the preferred implementation of the utility model, and in addition, the utility model can also have other implementations.Need to prove that under the prerequisite that does not break away from the utility model design, any conspicuous improvement and modification all should fall within the protection domain of the utility model.

Claims

1. the pine of fibre ribbon more than kind shell type optical fibre band optical cable comprises fibre ribbon, and it is characterized in that: central part has a metal reinforcement; Metal reinforcement is wrapped with the PE bed course; Have some fibre ribbons round metal reinforcement one circle, every fibre ribbon all is set with PBT pine sleeve pipe outward, is filled with fine cream between fibre ribbon and the PBT pine sleeve pipe; All PBT pine sleeve pipes are wrapped with the bundle yarn and add nonwoven layer; Prick yarn and add between nonwoven layer and the PBT pine sleeve pipe and be filled with the ointment that blocks water, the bundle yarn adds nonwoven layer and is wrapped with the wrinkle composite steel-plastic belt, and the wrinkle composite steel-plastic belt is wrapped with the PE sheath.

2. many fibre ribbon pine shell type optical fibre band optical cables according to claim 1, it is characterized in that: said fibre ribbon is stranded the forming of 4-6 root optical fiber.