CN218037464U

CN218037464U - PET loose tube reinforced leading-in optical cable

Info

Publication number: CN218037464U
Application number: CN202221023170.8U
Authority: CN
Inventors: 张洪雷; 周文华; 张蓬松; 孟瑶; 刘会天; 孙启铭
Original assignee: Hongan Group Co Ltd
Current assignee: Hongan Group Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-12-13
Anticipated expiration: 2032-04-29

Abstract

The utility model relates to the technical field of optical cable accessories, in particular to a PET loose tube reinforced lead-in optical cable, which improves the bending resistance and the tensile strength and strengthens the protection of a V-shaped groove; the optical fiber unit is arranged in the center of the butterfly-shaped sheath, the reinforcing parts are respectively arranged in two wings of the butterfly-shaped sheath, V-shaped grooves are formed in the surfaces of the two sides of the butterfly-shaped sheath, colloidal substances are filled in the outer surfaces of the corresponding positions of the V-shaped grooves, and the colloidal substances have certain adhesive force after being extruded and cooled.

Description

PET loose tube reinforced leading-in optical cable

Technical Field

The utility model relates to an optical cable auxiliary device's technical field especially relates to a PET loose tube strenghthened type introduces optical cable.

Background

At present, the butterfly-shaped optical cable is taken as a traditional user access optical cable and plays an extremely important role in establishing networks such as an intelligent building, a digital cell, a campus network, a local area network and the like.

The traditional butterfly-shaped optical cable comprises a bundle-shaped 4 core and a band-shaped 6-12 core, and the problem of large loss and even fiber breakage easily occurs after the band-shaped butterfly-shaped optical cable is bent to a certain degree in the use process. Meanwhile, the traditional butterfly-shaped lead-in optical cable is difficult to avoid the optical cable to curl, twist or have uneven stress in the construction process, and when the situation occurs, because the sheaths at the slotting positions on the two sides of the traditional butterfly-shaped lead-in optical cable are thinner, cracks are easy to generate after twisting and bending, water seepage occurs, the hydrogen loss of the optical fiber is caused, the attenuation coefficient of the optical fiber is increased, and the service life of the optical fiber is reduced; even the internal optical fiber is easily exposed, resulting in damage to the optical fiber; meanwhile, in some areas with more insects, the optical cable can be damaged by the insects after construction due to the fact that the protection of the optical fiber in the optical cable is weak.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a PET loose tube strenghthened type optical cable that introduces has improved bending resistance ability, tensile strength, strengthens the protection to V type groove department.

The utility model discloses a PET loose tube strenghthened type introducing optical cable, including optic fibre unit, reinforcement and butterfly sheath, optic fibre unit sets up in butterfly sheath center, the reinforcement sets up respectively in the both wings of butterfly sheath, all is provided with V type groove on the both sides surface of butterfly sheath, and the surface that V type groove corresponds the position fills colloidal substance, and this colloidal substance has certain adhesive force after the extrusion cooling.

Further, the optical fiber unit comprises a loose tube and an optical fiber coated in the loose tube, and a fiber paste is filled in the loose tube.

Further, the loose tube is made of PET material.

Further, still include the suspension wire, suspension wire and butterfly sheath integrated into one piece are provided with the suspension wire steel wire in the suspension wire.

Further, the suspension wire and the butterfly-shaped sheath are both made of low-smoke halogen-free flame-retardant materials.

Further, the reinforcing members are symmetrically arranged with the optical fiber unit as a center.

Further, the reinforcement is a metal reinforcement or an FRP rod.

Compared with the prior art, the beneficial effects of the utility model are that: the PET loose tube reinforced leading-in optical cable of the utility model is based on the existing butterfly leading-in optical cable, the optical fiber adopts the loose tube form of PET material, and the bending resistance is enhanced; the V-shaped groove of the existing butterfly-shaped leading-in optical cable exposed outside is filled with colloidal substances for protection, the problems that the V-shaped groove of the butterfly-shaped optical cable in the prior art is weak in protection and easy to tear are solved, and the damage to the optical cable caused by the fact that insects lay eggs in the V-shaped groove is also prevented.

Drawings

FIG. 1 is a schematic view of the present invention;

in the drawings, the reference numbers: 1. an optical fiber; 2. fiber paste; 3. loosening the sleeve; 4. a reinforcement; 5. a butterfly-shaped sheath; 6. a gelatinous substance; 7. and (4) hanging wire steel wires.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1, the utility model discloses a PET loose tube 3 strenghthened type introducing optical cable, including optical fiber unit, reinforcement 4 and butterfly sheath 5, the optical fiber unit sets up in the center of butterfly sheath 5, reinforcement 4 sets up respectively in the both wings of butterfly sheath 5, all is provided with V-shaped groove on the both sides surface of butterfly sheath 5, the outer surface of the corresponding position of V-shaped groove is filled with colloidal substance 6, this colloidal substance 6 has certain adhesive force after extruding and cooling;

in this embodiment, V type groove department is filled colloidal substance 6 and is protected V type groove, has solved the easy problem that is here torn, simultaneously through the reinforcement 4 that sets up, has further improved resistant bending property and tensile strength.

Further, the optical fiber unit comprises a loose tube 3 and an optical fiber 1 coated in the loose tube 3, and the loose tube 3 is filled with a fiber paste 2;

further, the loose tube 3 is made of PET material;

in this embodiment, the loose tube 3 is made of PET, which improves the bending resistance compared with the loose tube made of PBT.

Further, the butterfly-shaped sheath is characterized by further comprising a suspension wire, wherein the suspension wire and the butterfly-shaped sheath 5 are integrally formed, and a suspension wire steel wire 7 is arranged in the suspension wire;

further, the suspension wire and the butterfly-shaped sheath 5 are both made of low-smoke halogen-free flame-retardant materials;

in this embodiment, the fire retarding properties of the suspension wire and butterfly sheath 5 are improved.

Further, the reinforcing members 4 are symmetrically arranged with the optical fiber unit as a center;

further, the reinforcement 4 is a metal reinforcement or an FRP rod;

in this embodiment, the reinforcing members 4 are symmetrically disposed about the optical fiber unit, so that the optical fiber 1 can be uniformly stressed.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a PET loose tube strenghthened type leading-in optical cable, characterized in that, includes optic fibre unit, reinforcement (4) and butterfly sheath (5), optic fibre unit sets up in butterfly sheath (5) center, reinforcement (4) set up respectively in the both wings of butterfly sheath (5), all are provided with V type groove on the both sides surface of butterfly sheath (5), and the surface that V type groove corresponds the position fills colloidal substance (6).

2. The PET loose tube reinforced type drop cable according to claim 1, wherein the optical fiber unit comprises a loose tube (3) and an optical fiber (1) wrapped in the loose tube (3), and the loose tube (3) is filled with a fiber paste (2).

3. The PET loose tube reinforced drop cable of claim 2, wherein the loose tube (3) is PET.

4. The PET loose tube reinforced drop cable according to claim 3, further comprising a suspension wire, wherein the suspension wire is integrally formed with the butterfly-shaped sheath (5), and a suspension wire steel wire (7) is arranged in the suspension wire.

5. The PET loose tube reinforced drop cable according to claim 4, wherein the suspension wire and the butterfly sheath (5) are made of low smoke halogen-free flame retardant material.

6. The PET loose tube reinforced drop cable of claim 5, wherein the reinforcing members (4) are arranged symmetrically with respect to the optical fiber unit.

7. The PET loose tube reinforced drop cable of claim 6, wherein the strength member (4) is a metal strength member or FRP rod.