CN217506202U

CN217506202U - Flat ratproof optical cable

Info

Publication number: CN217506202U
Application number: CN202220292328.5U
Authority: CN
Inventors: 张蓬松; 张洪雷; 周双双; 王杨; 刘蒙; 陈宁
Original assignee: Hongan Group Co Ltd
Current assignee: Hongan Group Co Ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-09-27
Anticipated expiration: 2032-02-14

Abstract

The utility model relates to the field of optical cable mechanical structures, in particular to a flat ratproof optical cable, which comprises an optical fiber, a threaded steel pipe wrapped outside the optical fiber, an inner sheath wrapped outside the threaded steel pipe, an outer sheath wrapped outside the inner sheath, a reinforcement piece used for enhancing the mechanical property of the optical cable arranged between the inner sheath and the threaded steel pipe, a reinforcement piece used for enhancing the mechanical property of the optical cable arranged between the outer sheath and the inner sheath, wherein the reinforcement piece and the reinforcement piece are symmetrically arranged at two sides of the optical fiber, meanwhile, the mechanical problems that construction is inconvenient in a narrow space and the optical cable is not resistant to bending, extrusion and the like are solved, and the capability of adapting to a complex laying environment of the optical cable is improved.

Description

Flat ratproof optical cable

Technical Field

The utility model relates to an optical cable mechanical structure field, concretely relates to flat protection against rodents optical cable.

Background

Along with the continuous deepening of the Chinese network construction, the environment for laying the optical cable is more and more complex, for example, in a part of areas with serious rodent damage, the laid optical cable is often bitten by rodents, so that the communication is interrupted, meanwhile, the service life of the optical cable is reduced, and certain economic loss is caused; if the optical cable is laid in an old city area or a remote mountain area, the construction is difficult, the later maintenance is inconvenient and the maintenance cost is high due to the narrow terrain and the large diameter of the constructed cable, and in addition, the optical cable is often required to be bent or extruded in the laying process, so that the mechanical properties of the optical cable such as bending resistance, extrusion resistance and the like are required to be improved. In summary, the conventional optical cable has failed to meet the construction requirements, and it is urgently needed to develop a novel optical cable to solve the problems encountered in the laying process of the optical cable.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a flat protection against rodents optical cable is in through setting up optic fibre is outside the multilayer structure of screw-thread steel pipe, inner sheath, oversheath, reinforcement and reinforcement realizes the protection against rodents of optical cable and the purpose that narrow space of being convenient for laid.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a flat protection against rodents optical cable, includes optic fibre, the parcel is in the outer screw-thread steel pipe of optic fibre, the parcel is in inner sheath outside the screw-thread steel pipe, the parcel is in the outer oversheath of inner sheath, the inner sheath with be equipped with the reinforcement that is used for strengthening optical cable mechanical properties between the screw-thread steel pipe, the oversheath with be equipped with the reinforcement that is used for strengthening optical cable mechanical properties between the inner sheath, the reinforcement with the equal symmetry of reinforcement sets up the optic fibre both sides are through setting up the optic fibre is outside the multilayer structure of screw-thread steel pipe, inner sheath, oversheath, reinforcement and reinforcement realizes the protection against rodents of optical cable and improves mechanical properties's purpose.

Preferably, the reinforcement is a glass fiber reinforced plastic, the number of which is an even number.

Preferably, the reinforcing members are galvanized steel wires, and the number thereof is even.

Preferably, the inner sheath is made of flame-retardant thermoplastic polyurethane, and the cross section of the inner sheath is flat.

Preferably, the inner jacket is provided with a tear opening.

Preferably, the outer sheath is made of HDPE material, and the cross section of the outer sheath is flat.

Preferably, the optical fiber is located at the center of the inner sheath.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a set up the multilayer structure of threaded steel pipe, inner sheath, oversheath, reinforcement and reinforcement at the skin of optic fibre, show the mechanical properties such as anti buckling and anti extrusion that have improved the optical cable, also solved the bite problem of biting of rodent such as rodent simultaneously.

2. The utility model discloses a design into the platykurtic with the cross section of inner sheath and oversheath, the circular optical cable of comparing, the size is littleer, is more convenient for buckle, has solved the inconvenient problem of construction that the optical cable laid in narrow space, has reduced construction cost, also can improve the pleasing to the eye degree after laying to a certain extent simultaneously.

3. The utility model discloses an inner sheath at the optical cable sets up the tearing notch, tears the optical cable when being convenient for construct, improves the efficiency of construction.

4. The utility model discloses the inner sheath adopts fire-retardant thermoplastic polyurethane, and the oversheath adopts the HDPE material, has improved the antifriction of optical cable, fire-retardant, low temperature resistant performance for the optical cable can adapt to the complex environment who lays more.

Drawings

Fig. 1 is a schematic structural view of a flat ratproof optical cable.

In the figure: 1. a reinforcement; 2. a reinforcement; 3. a threaded steel pipe; 4. an optical fiber; 5. a tearing opening; 6. an inner sheath; 7. an outer sheath.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following figures in the embodiments of the present invention are combined to clearly and completely describe the technical solution of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments of the present invention.

Referring to fig. 1, the utility model discloses a flat protection against rodents optical cable, including optic fibre 4, the parcel is at optic fibre 4 outer screw steel pipe 3, the inner sheath 6 of parcel outside screw steel pipe 3, the outer oversheath 7 of 6 outer sheaths including the parcel, be equipped with between inner sheath 6 and the screw steel pipe 3 and be used for strengthening optical cable mechanical properties's reinforcement 2, be equipped with between oversheath 7 and the inner sheath 6 and be used for strengthening optical cable mechanical properties's reinforcement 1, reinforcement 1 and the equal symmetry setting of reinforcement 2 are in optic fibre 4 both sides, through setting up at optic fibre 4 outside screw steel pipe 3, inner sheath 6, oversheath 7, reinforcement 2 and the multilayer structure of reinforcement 1, realize the protection against rodents of optical cable and the mesh of laying in the narrow space of being convenient for.

The embodiment of the utility model provides an in, reinforcing member 1 is glass fiber reinforced plastic, and reinforcing member 2 is the galvanized steel wire, and the even number root can be set to according to actual need to the quantity of reinforcing member 1 and reinforcing member 2, and its effect lies in preventing that rodent or other rodent's bite, forms multilayer protection to the optical cable, also can show the mechanical properties such as anti bending and anti extrusion that have improved the optical cable simultaneously for the optical cable can adapt to complicated environment of laying.

Inner sheath 6 adopts fire-retardant thermoplastic polyurethane, and oversheath 7 adopts the HDPE material, and its effect lies in having improved the antifriction of optical cable, fire-retardant, performance such as low temperature resistant, and the cross section of inner sheath 6 and oversheath 7 is the platykurtic for the optical cable size is less relatively, more can adapt to constrictive construction space, and the planomum of optical cable compares with circular optical cable in addition, also can effectively prevent biting of rodent or other rodents, has further improved the performance of stinging of preventing of optical cable.

The embodiment of the utility model provides an in, inner sheath 6 is equipped with tearing opening 5, and the tearing opening shape is the V type, is convenient for tear the branch of inner sheath 6 and optic fibre like this, and the quantity of tearing opening 5 can be for more than 2, specifically can be according to the construction requirement and decide.

The optical fibers 4 are positioned in the center of the inner sheath 6, so that the reinforcing parts 1 and the reinforcing parts 2 which are symmetrically and uniformly arranged around the optical fibers are uniformly distributed in the outer sheath 7 and the inner sheath 6, and the optical cable is integrally formed into a uniform and symmetrical structure, and the improvement of the integral mechanical performance of the optical cable is facilitated.

The foregoing is a detailed description of the embodiments of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and embellishments can be made without departing from the principle of the present invention, and these modifications and embellishments should also be regarded as the protection scope of the present application.

Claims

1. A flat rat-proof optical cable is characterized by comprising an optical fiber (4), a threaded steel pipe (3) wrapped outside the optical fiber (4), an inner sheath (6) wrapped outside the threaded steel pipe (3), and an outer sheath (7) wrapped outside the inner sheath (6), a reinforcing piece (2) used for enhancing the mechanical property of the optical cable is arranged between the inner sheath (6) and the threaded steel pipe (3), a reinforcing piece (1) used for reinforcing the mechanical property of the optical cable is arranged between the outer sheath (7) and the inner sheath (6), the reinforcing part (1) and the reinforcing part (2) are symmetrically arranged at two sides of the optical fiber (4), through setting up in optic fibre (4) outside the multilayer structure of threaded steel pipe (3), inner sheath (6), oversheath (7), reinforcement (2) and reinforcement (1), realize the protection against rodents of optical cable and the purpose of being convenient for narrow space laying.

2. A flat ratproof optical cable as claimed in claim 1, characterized in that the reinforcement (1) is of glass-fibre-reinforced plastic, the number of which is even.

3. A flat ratproof optical cable as claimed in claim 1, wherein the strength members (2) are galvanized steel wires in an even number.

4. The flat ratproof optical cable according to claim 1, wherein the inner sheath (6) is made of flame retardant thermoplastic polyurethane and has a flat cross section.

5. A flat rat-proof optical cable according to claim 4, characterized in that the inner sheath (6) is provided with a tear (5).

6. The flat rat-proof optical cable according to claim 1, wherein the outer sheath (7) is made of HDPE material and has a flat cross section.

7. A flat ratproof optical cable as claimed in any one of claims 1 to 6, characterised in that the optical fibres (4) are located in the centre of the inner sheath (6).