CN216248425U

CN216248425U - Anti-sag optical fiber jumper wire

Info

Publication number: CN216248425U
Application number: CN202122894892.2U
Authority: CN
Inventors: 吴小芳; 吴清辉; 贲仁伟; 杨光; 魏平安; 秦亚鹏
Original assignee: Haian Guangyi Communication Equipment Co ltd
Current assignee: Haian Guangyi Communication Equipment Co ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-04-08
Anticipated expiration: 2031-11-23

Abstract

The utility model discloses an anti-sag optical fiber jumper wire which comprises a cable body, wherein the end part of the cable body is provided with a connector assembly, the connector assembly comprises a connecting sleeve and an inserting core, the inner end of the inserting core is arranged in the connecting sleeve, and the outer end of the inserting core extends out of the connecting sleeve; the cable body comprises a tightly-wrapped optical fiber, an aramid fiber reinforced layer and an outer coating layer; at least one anti-sagging reinforcement piece capable of being bent is embedded in the aramid fiber reinforcement layer, and an optical fiber aligning hole for tightly-packed optical fiber insertion and a limiting hole for anti-sagging reinforcement piece insertion are formed in the connecting sleeve. When the optical fiber patch cord is not used, the optical fiber patch cord can be coiled into a disc without damaging optical fibers in the optical cable; the optical cable can be naturally stretched and straightened when being constructed and unfolded, and the characteristics of tensile strength, torsion resistance and the like of the optical fiber jumper are not influenced.

Description

Anti-sag optical fiber jumper wire

Technical Field

The utility model belongs to the technical field of optical fiber products, and particularly relates to an anti-sag optical fiber jumper.

Background

The optical fiber jumper (also called optical fiber connector) is a jumper wire which is used for connecting equipment to an optical fiber wiring link and is arranged at both ends of an optical cable, and is applied to the fields of optical fiber communication systems, optical fiber access networks, optical fiber data transmission, local area networks and the like.

According to the industry specification of the optical fiber movable connector, the optical fiber jumper wires are different according to application scenes, and the outer diameters of optical cables used by the jumper wires are divided into phi 2.0 mm and phi 3.0 mm; referring to fig. 1, the optical cable used in the optical fiber patch cord is divided into three parts from inside to outside: 0.9mm tight-buffered optical fiber, cable strength member (conventionally aramid fiber material), and jacket (both PVC and LSZH). Conventional optical fiber jumper wire is because inside the adopting of optical cable is soft aramid fiber structure, and it also droops naturally easily after the construction is straightened, in the construction of laying wire in batches, leads to the optical cable to concentrate the nest together easily, seriously influences efficiency of construction and engineering acceptance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an anti-sag optical fiber jumper wire which has a certain bending radius and can naturally stretch and straighten when being unfolded.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the anti-sag optical fiber jumper comprises a cable body, wherein a connector assembly is arranged at the end part of the cable body and comprises a connecting sleeve and an inserting core, the inner end of the inserting core is arranged in the connecting sleeve, and the outer end of the inserting core extends out of the connecting sleeve; the cable body comprises a tightly-wrapped optical fiber, an aramid fiber reinforced layer and an outer coating layer; at least one anti-sagging reinforcement piece capable of being bent is embedded in the aramid fiber reinforcement layer, and an optical fiber aligning hole for tightly-packed optical fiber insertion and a limiting hole for anti-sagging reinforcement piece insertion are formed in the connecting sleeve.

As a preferred technical solution, the sag prevention reinforcement is a core made of steel wire or fiber reinforced composite material.

As an optimal technical scheme, the diameter of the anti-sagging reinforcing piece is 0.2-0.3 mm.

As the preferred technical scheme, the circumferential surface of the anti-sagging reinforcing piece is concavely provided with a groove.

Preferably, the outer layer is a PVC layer or an LSZH layer.

Due to the adoption of the technical scheme, compared with the prior art, the utility model has the following beneficial effects: the anti-sag reinforcing piece is added by removing 2 strands of aramid fibers, and meanwhile, the connecting sleeve is provided with a limiting hole for inserting the anti-sag reinforcing piece, so that when the optical fiber jumper is not used, the optical fiber jumper can be coiled into a disc without damaging optical fibers in the optical cable due to the fact that the anti-sag reinforcing piece has a certain bending radius; the optical cable can be naturally stretched and straightened when being constructed and unfolded, the characteristics of tensile strength, torsion resistance and the like of the optical fiber jumper are not influenced, the problem of natural droop of the optical cable caused by the soft condition after the optical fiber jumper is constructed is ingeniously solved, the telecommunication construction efficiency and the acceptance attractiveness are improved, and the FTTH construction task and target are more quickly solved.

Drawings

The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:

FIG. 1 is a cross-sectional structural schematic view of a cable body of a conventional fiber optic jumper of the prior art;

FIG. 2 is a schematic cross-sectional view of a cable body of an optical fiber patch cord according to an embodiment of the present invention;

FIG. 3 is a schematic view of a cable body and a connector assembly as assembled according to an embodiment of the utility model;

fig. 4 is a schematic cross-sectional view of a cable body of an optical fiber patch cord according to a second embodiment of the present invention.

Detailed Description

The utility model is further illustrated below with reference to the figures and examples. In the following detailed description, certain exemplary embodiments of the present invention are described by way of illustration only. Needless to say, a person skilled in the art realizes that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

Example one

As shown in fig. 2 and 3, the anti-sag optical fiber jumper comprises a cable body 1, wherein a connector assembly 2 is arranged at the end of the cable body 1, the connector assembly 2 comprises a connecting sleeve 21 and a ceramic ferrule 22 which are made of metal, the inner end of the ferrule 22 is arranged in the connecting sleeve 21, the two are in interference fit connection, and the outer end of the ferrule 22 extends out of the connecting sleeve 21; the cable body 1 comprises a 0.9mm tightly-packed optical fiber 11, an aramid fiber reinforced layer 12 and a coating layer 13, wherein the coating layer 13 can be a PVC layer or an LSZH layer (low smoke zero halogen material); aramid fiber reinforced layer 12 comprises 2 strand aramid fiber, inlays in aramid fiber reinforced layer 12 and establishes one can be by crooked prevent reinforcement 14 that hangs down, be provided with the confession on the adapter sleeve 21 tightly wrap up 11 male optic fibre and aim at hole 23 and confession prevent hanging down spacing hole 24 of reinforcement 14 male.

The anti-sagging reinforcement 14 is preferably made of a fiber reinforced composite material, i.e., an FRP core bar, and has a circular cross section and a diameter of preferably 0.25 mm.

Like this, through removing 2 strands in 4 strand aramid fibers in the 3.0mm optical cable of phi, and increase an anti-reinforcement 14 that hangs down, set up on the adapter sleeve 21 simultaneously and supply to hang down spacing hole 24 that reinforcement 14 inserted, can guarantee that the optic fibre wire jumper has a certain amount of bend radius (130 mm). When the optical fiber patch cord is not used, the optical fiber patch cord can be coiled into a disc without damaging optical fibers in the optical cable; the optical cable can be naturally stretched and straightened when being constructed and unfolded, the characteristics of tensile strength, torsion resistance and the like of the optical fiber jumper are not influenced, the problem of natural droop of the optical cable caused by the soft condition after the optical fiber jumper is constructed is ingeniously solved, the telecommunication construction efficiency and the acceptance attractiveness are improved, and the FTTH construction task and target are more quickly solved.

Example two

Referring to fig. 4, the structure principle of this embodiment is substantially the same as that of the first embodiment, and the only difference is that: in this embodiment, the circumferential surface of the anti-sag reinforcement 14(FRP core rod) is recessed inwards to form 4 grooves, so that when the optical fiber patch cord is long and unfolded, the natural stretching straightening effect can be effectively improved.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the utility model should fall within the protection scope of the utility model.

Claims

1. The anti-sag optical fiber jumper comprises a cable body, wherein a connector assembly is arranged at the end part of the cable body and comprises a connecting sleeve and an inserting core, the inner end of the inserting core is arranged in the connecting sleeve, and the outer end of the inserting core extends out of the connecting sleeve; the cable body comprises a tightly-wrapped optical fiber, an aramid fiber reinforced layer and an outer coating layer; the method is characterized in that: at least one anti-sagging reinforcement piece capable of being bent is embedded in the aramid fiber reinforcement layer, and an optical fiber aligning hole for tightly-packed optical fiber insertion and a limiting hole for anti-sagging reinforcement piece insertion are formed in the connecting sleeve.

2. The sag-resistant optical fiber patch cord according to claim 1, wherein: the anti-sagging reinforcement is a core made of steel wire or fiber reinforced composite material.

3. The sag-resistant optical fiber patch cord according to claim 2, wherein: the diameter of the anti-sagging reinforcing piece is 0.2-0.3 mm.

4. The sag-resistant optical fiber patch cord according to claim 1, wherein: the circumferential surface of the anti-sagging reinforcing piece is concavely provided with a groove.

5. The sag-resistant optical fiber patch cord according to any one of claims 1 to 4, wherein: the outer layer is a PVC layer or an LSZH layer.