CN201555972U

CN201555972U - Bent-resistant armored jumper

Info

Publication number: CN201555972U
Application number: CN200920248180XU
Authority: CN
Inventors: 李越; 王鹏; 尹斌; 李岩
Original assignee: Shenyang Hengtong Optical Communication Co Ltd
Current assignee: Shenyang Hengtong Optical Communication Co Ltd
Priority date: 2009-11-17
Filing date: 2009-11-17
Publication date: 2010-08-18
Anticipated expiration: 2019-11-17

Abstract

The utility model relates to a bent-resistant armored jumper, which has the advantages of fine impact resistance, flexibility and insulation performance, easy connection and installation, low cost and the like. The jumper comprises an optical fiber, a tight sleeve layer, a metal corrugated pipe and a sheath layer (PVC), and the optical fiber is tightly wrapped inside the tight sleeve layer and then wound around the metal corrugated pipe prior to being covered with the outer sheath layer to form a cable. Under action of external force, the metal corrugated layer used as a reinforced layer can finely protect the optical fiber without affecting transmission performance, a port connector can be chosen from FC/SC/ST/MU/LC/E2000 and the like according to a port of a connected device, and if needed, a water blocking tape can be added on the surface of the tight sleeve layer to strengthen water blocking and moisture prevention effects. The jumper is suitable for indoor use.

Description

Anti-crooked armouring wire jumper

Technical field:

The utility model relates to the optical cable technology field, and exactly it is a kind of anti-crooked armouring wire jumper.

Background technology:

Optical cable is an accessory commonly used in the communication technical field, and when indoor equipment wiring and use, optical cable can not keep linear state, the chance of turning round is many, so require inside cable that good gentle curved characteristic will be arranged, promptly stronger crooking ability, but still there is following problem in traditional inside cable:

1, traditional inside cable uses aramid fiber as enhancement Layer, is receiving that external force does the time spent, though can protect optical fiber, but still can make optical fiber be subjected to stress;

2, traditional inside cable is when producing, as grasps the laying tension of bad aramid fiber, maybe can not tightly overlap parcel fully, and the quality of product will be under some influence so;

3, traditional inside cable in use under the less or situation of looping of flexibility, is easy to optical fiber is broken if desired;

4, traditional inside cable starting material aramid fiber involves great expense the production cost height.

Because the demand growing to the FTTH network, must design a kind of inside cable wire jumper, this optical cable should bending radius littler and frangibility not, has good insulation performance, simultaneously, optical cable is applicable to and is erected at indoorly that so optical cable must have certain anti-rodent again and baits ability.

Summary of the invention:

The purpose of this utility model is: a kind of FTTH of being applicable to network is provided, and it is disconnected easily fine to solve existing inside cable wire jumper, cost height, new indoor optical cable wire jumper---the anti-crooked armouring wire jumper of phenomenons such as protection inconvenience.It comprises optical fiber, tight sleeve layer, metallic bellows, restrictive coating (PVC).It is characterized in that: the optical fiber hard-pressed bale is in tight sleeve layer, and metallic bellows and restrictive coating are twined in the outside.Tight sleeve layer (2) table can be equipped with waterstop.

The utility model has the advantages that:

(1) have higher impact strength and pliability, bending radius is littler;

(2), can not influence its transmission performance even environmental baseline is bad yet;

(3) no ointment is filled, and is in light weight, is easy to continue and install;

(4) have certain anti-rodent and bait ability;

(5) has good insulation performance;

(6) there is the metal tube protection access interface and optical cable junction, and it is fractureed;

(7) port joint has FC/SC/ST/MU/LC/E2000 etc., can be selected according to equipment interface.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is technological process of production figure of the present utility model.

Wherein, 1 is optical fiber, and 2 is tight sleeve layer, and 3 is metallic bellows, and 4 is restrictive coating (PVC).

Embodiment:

This utility model adopts following scheme to realize that its technology all is prior art.

With optical fiber 1 hard-pressed bale in tight sleeve layer 2; twine outer restrictive coating 4 strandings that protect in metallic bellows 3 backs; owing to use metallic bellows as enhancement Layer, be subjected to external force to do the time spent, also can well protect optical fiber; can not influence transmission performance; port joint has FC/SC/ST/MU/LC/E2000 etc., can be selected according to the interface of the equipment that is connected, if needed; can increase waterstop on the tight sleeve layer surface, strengthen blocking water and moisture effect.

Claims

1. anti-crooked armouring wire jumper, it comprises optical fiber, tight sleeve layer, metallic bellows, restrictive coating, it is characterized in that: optical fiber (1) hard-pressed bale is in tight sleeve layer (2), and metallic bellows (3) and restrictive coating (4) are twined in the outside.

2. anti-crooked armouring wire jumper according to claim 1 is characterized in that: waterstop is equipped with on tight sleeve layer (2) surface.