CN216901068U

CN216901068U - Tensile bending-resistant high-temperature-resistant optical cable

Info

Publication number: CN216901068U
Application number: CN202123234320.8U
Authority: CN
Inventors: 刘金平; 罗良鹏
Original assignee: Corops Shanghai Information Technology Co ltd
Current assignee: Corops Shanghai Information Technology Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-07-05
Anticipated expiration: 2031-12-22

Abstract

The utility model relates to a tensile, bending and high temperature resistant optical cable, and relates to the technical field of optical cables. Mainly to the less strong problem of resistance to compression bending performance of optical cable among the prior art, provide following technical scheme, including outside-in outer inoxidizing coating and the interior inoxidizing coating that sets gradually, the inboard of interior inoxidizing coating is provided with a plurality of loose package pipes, every the inside of loose package pipe all is provided with a plurality of tight package pipes, the inside of interior inoxidizing coating is provided with the reinforcement, the inboard of outer inoxidizing coating is provided with the resistance to compression layer. The utility model can provide the performances of compression resistance and bending resistance, has the characteristics of heat resistance and tensile resistance, and is mainly applied to communication engineering.

Description

Tensile bending-resistant high-temperature-resistant optical cable

Technical Field

The utility model relates to the technical field of optical cables, in particular to a tensile, bending and high-temperature resistant optical cable.

Background

The optical cable used at present is simple in structure, the optical cable is composed of a single-core tight-buffered optical fiber and a sheath layer coated on the surface of the single-core tight-buffered optical fiber, the optical fiber is simple in production process and poor in mechanical performance, the optical fiber is easy to bend or break in the construction or use process, transmission of optical signals is finally interrupted, and long-term stability of optical fiber transmission characteristics is seriously influenced.

In application number 201610690926.7's chinese patent, a high temperature resistant tensile optical cable is proposed, outer inoxidizing coating (1) of oversheath that sets gradually including outside-in, insulating layer reinforcement (7) and inner sheath lead to stem (6), the inner sheath leads to and is equipped with a plurality of optical fiber sheath bale tube (3) in stem (6), be equipped with a plurality of optical fiber bale tube (4) in the optical fiber sheath bale tube (3), be equipped with inoxidizing coating (2) in the outer inoxidizing coating (1) of oversheath in a plurality of strengthening rib, the outer surface coating of the outer inoxidizing coating (1) of oversheath has cooling coating. The utility model has the beneficial effects that: the reinforcing ribs are arranged to improve the tensile strength and the bending resistance of the outer sheath, the thermal insulation layer is arranged to enable the outer sheath to have good thermal insulation and fireproof performance, so that the internal structure of the optical cable can be protected from being damaged by high temperature, the use safety of the optical cable is guaranteed, the outer sheath can automatically radiate heat outwards to play a role in cooling through the cooling coating coated on the outer surface of the outer sheath, and the heat of the sun is prevented from being accumulated on the surface of an object to be heated.

In the technical scheme, the middle reinforcing ribs and the external anti-radiation coating are adopted to complete high temperature resistance and tensile resistance, the compression resistance and bending resistance of the optical cable are not enhanced, the bending resistance is poor in the construction process, and the optical cable is easily damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an optical cable capable of realizing tensile, bending and high temperature resistance aiming at the problems in the background technology.

The technical scheme of the utility model is as follows: the utility model provides a resistant crooked high temperature resistant optical cable of tensile, includes outer inoxidizing coating and the interior inoxidizing coating that outside-in set gradually, the inboard of interior inoxidizing coating is provided with a plurality of loose package pipes, every the inside of loose package pipe all is provided with a plurality of tight package pipes, the inside of interior inoxidizing coating is provided with the reinforcement, the inboard of outer inoxidizing coating is provided with the compressive layer.

Preferably, any one of the tightly-packed tubes comprises an optical fiber and a plastic tube sleeved on the optical fiber, and a gap exists between the inner walls of the tightly-packed tubes and the loosely-packed tube.

Preferably, the inside of interior inoxidizing coating is filled with the buffering and is filled, the middle part that the buffering was filled is provided with logical stem, the reinforcement is located logical stem.

Preferably, the reinforcing part is made of a metal reinforcing part, and the diameter of the reinforcing part is smaller than that of the through core column.

Preferably, the outside cover of interior inoxidizing coating is equipped with the shielding layer, the resistance to compression layer includes that two spiral are in the bending-resistant area of metal on the shielding layer.

Preferably, the shielding layer comprises a plastic layer on the outside and a metal coating disposed on the inside of the plastic layer.

Preferably, a heat insulation layer is arranged between the pressure resistant layer and the outer protective layer.

Compared with the prior art, the utility model has the following beneficial technical effects:

through the use of the through core column and the reinforcing part in the buffer filling, the tensile resistance can be realized, and the reinforcing part can have certain deflection buffer in the bending process; when the tightly-packed tubes in the loose-packed tubes are used, more bending spaces can exist during bending, so that optical fibers can be conveniently bent, and the bending adaptability is improved; realize the cushioning effect of certain effect through interior inoxidizing coating, improve crushing resistance, the design of coiling of cooperation crushing resistance layer does when realizing reinforcing tensile properties, can realize certain bend radius, has improved the resistant bending property of optical cable greatly, is increasing high temperature resistance's effect through the insulating layer.

Drawings

FIG. 1 is a schematic diagram of the structure of one embodiment of the present invention;

fig. 2 is a front view of fig. 1.

Reference numerals: 1. an outer protective layer; 2. an inner protective layer; 3. loosening the wrapped pipe; 4. tightly wrapping the pipe; 5. buffer filling; 6. a core column is communicated; 7. a reinforcement; 8. a shielding layer; 9. a pressure resistant layer; 10. an insulating layer.

Detailed Description

The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.

Example one

As shown in fig. 1, the tensile, bending-resistant and high-temperature-resistant optical cable provided by the utility model comprises an outer protective layer 1 and an inner protective layer 2 which are sequentially arranged from outside to inside, wherein the inner protective layer 2 is made of a silica gel material. The outer protective layer 1 is made of PE material. The inboard of interior inoxidizing coating 2 is provided with a plurality of loose package pipes 3, and every loose package pipe 3's inside all is provided with a plurality of tight package pipes 4, and loose package pipe 3 is the PE material. Any one of the tight wrapping tubes 4 comprises an optical fiber and a plastic tube sleeved on the optical fiber, and the plastic tube is made of PE material. Gaps are reserved between the inner walls of the tightly-packed pipes 4 and the loosely-packed pipes 3; the inside of interior inoxidizing coating 2 is provided with reinforcement 7, and the inside packing of interior inoxidizing coating 2 has buffering to fill 5, and buffering is filled 5 and is adopted the epoxy foamed plastic material. The middle part of the buffer filling 5 is provided with a through core column 6, and a reinforcing piece 7 is positioned in the through core column 6; the inboard of outer inoxidizing coating 1 is provided with resistance to compression layer 9, and the outside cover of interior inoxidizing coating 2 is equipped with shielding layer 8, and resistance to compression layer 9 includes that two spiral or spiral are in shielding layer 8 upper metal bending resistance area, and metal bending resistance takes and adopts the steel material.

The working principle based on the first embodiment is as follows: can completely cut off outside aqueous vapor through the design of outer inoxidizing coating 1, thermal-insulated ability has been improved through insulating layer 10, and compressive capacity has been strengthened to a certain extent, use through the two steel bands in compressive layer 9, can keep the stability of optical cable at the tractive in-process, improve tensile effect, and can realize the bending of certain angle, the bending resistance ability of optical cable has been improved greatly, use through the aluminium coating in shielding layer 8, can realize the electric shield effect, keep signal transmission's stability, fill 5 through interior inoxidizing coating 2 and buffering and keep inside buffering nature to a certain extent, the mutual extrusion phenomenon of the in-process of having improved optic fibre messenger's buckling or the in-process of exerting pressure greatly. The tensile strength of the whole cable is improved to a certain extent through the reinforcing part 7, a certain buffering effect can be kept when the reinforcing part 7 is bent through the gaps of the reinforcing part 7 and the through core column 6, and the bending degree of the reinforcing part 7 is reduced.

Example two

As shown in fig. 1, the optical cable with tensile strength, bending resistance and high temperature resistance provided by the present invention further includes, based on the first embodiment: the shielding layer 8 comprises a plastic layer positioned on the outer side and a metal coating arranged on the inner side of the plastic layer, the plastic layer is made of PE, and the metal coating is an aluminum coating.

The working principle based on the second embodiment is as follows: through the use of the aluminum coating in the shielding layer 8, a certain anti-interference effect can be realized, and the transmission reliability can be maintained.

EXAMPLE III

As shown in fig. 1 and fig. 2, the optical cable with tensile strength, bending resistance and high temperature resistance provided by the present invention further includes, based on the first embodiment or the second embodiment: a heat insulation layer 10 is arranged between the pressure resistant layer 9 and the outer protective layer 1, the heat insulation layer 10 is made of a pert heat-resistant polyethylene pipe, and has good flexibility, high heat conductivity and inertia, and better pressure resistance.

The working principle based on the third embodiment is as follows: the overall pressure resistance of the cable can be enhanced and bending can be performed by the provision of the insulating layer 10.

The above embodiments are merely some preferred embodiments of the present invention, and those skilled in the art can make various alternative modifications and combinations of the above embodiments based on the technical solution of the present invention and the related teaching of the above embodiments.

Claims

1. The utility model provides a resistant crooked high temperature resistant optical cable of tensile, its characterized in that, includes outer inoxidizing coating (1) and interior inoxidizing coating (2) that outside-in set gradually, the inboard of interior inoxidizing coating (2) is provided with a plurality of bale of loosing pipes (3), every the inside of bale of loosing pipe (3) all is provided with a plurality of tight package pipes (4), the inside of interior inoxidizing coating (2) is provided with reinforcement (7), the inboard of outer inoxidizing coating (1) is provided with compressive layer (9).

2. The optical cable as claimed in claim 1, wherein any one of the tight-buffered tubes (4) comprises an optical fiber and a plastic tube covering the optical fiber, and a gap exists between the tight-buffered tubes (4) and the inner wall of the loose-buffered tube (3).

3. A tensile bend-resistant high-temperature-resistant optical cable according to claim 1, wherein the inner protective layer (2) is filled with a buffer filling (5), a through core column (6) is arranged in the middle of the buffer filling (5), and the strength member (7) is located in the through core column (6).

4. A tensile bend-resistant high-temperature-resistant optical cable according to claim 3, wherein the reinforcing member (7) is a metal reinforcing member, and the diameter of the reinforcing member (7) is smaller than that of the through core column (6).

5. A tensile bend-resistant high-temperature-resistant optical cable as claimed in claim 1, wherein the outer side of the inner protective layer (2) is sleeved with a shielding layer (8), and the pressure-resistant layer (9) comprises two metal bending-resistant bands coiled on the shielding layer (8).

6. A tensile bend-resistant high-temperature-resistant optical cable according to claim 5, wherein the shielding layer (8) comprises a plastic layer on the outside and a metal coating layer disposed on the inside of the plastic layer.

7. A tensile bend-resistant high-temperature-resistant optical cable according to claim 1, wherein a thermal insulation layer (10) is arranged between the pressure-resistant layer (9) and the outer protective layer (1).