CN209803422U

CN209803422U - Underground optical cable with high pressure resistance

Info

Publication number: CN209803422U
Application number: CN201920537771.2U
Authority: CN
Inventors: 姚东鑫
Original assignee: Anhui Changrong Fiber Optic Cable Technology Co Ltd
Current assignee: Anhui Changrong Fiber Optic Cable Technology Co Ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2019-12-17
Anticipated expiration: 2029-04-19

Abstract

The utility model discloses an underground optical cable with high compressive property, including optic fibre, the outside of optic fibre is provided with the aramid fiber inoxidizing coating, and the outside of optic fibre and aramid fiber inoxidizing coating is provided with spacing, optic fibre, aramid fiber inoxidizing coating and spacing all are located the inboard of parcel layer, and the outside of parcel layer is connected with the resistance to compression board, the outside of parcel layer is provided with the filling layer, and the resistance to compression board is located the position between parcel layer and the filling layer, the outside of filling layer is provided with the buffering strip, and the outside of filling layer still is provided with the resistance to compression layer to the filling layer passes through buffering strip and resistance to compression layer interconnect. This underground optical cable with high compressive property can also carry out the elastic recovery when can carrying out adaptability deformation to improved compressive capacity, can cushion the dispersion to pressure simultaneously, avoid this optical cable to receive the extrusion to take place the rigidity tear, improved the protective capacities to the optical cable.

Description

Underground optical cable with high pressure resistance

Technical Field

the utility model relates to an optical cable technical field specifically is an underground optical cable with high compressive property.

Background

The optical cable is a communication line which is formed by a certain number of optical fibers according to a certain mode, is coated with a sheath, and is also coated with an outer protective layer for realizing optical signal transmission, and is commonly used for information transmission.

the existing optical cable is usually laid underground and easily scratched by hard sundries such as stones in soil, so that the normal work of the optical cable is influenced, and meanwhile, the optical cable is easily subjected to rigid fracture due to underground pressure, so that information transmission fails. Aiming at the problems, the innovative design is carried out on the basis of the original underground optical cable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an underground optical cable with high compressive property to solve the current optical cable that proposes in the above-mentioned background art and lay usually underground, be scratched by hard debris such as the stone in the earth easily, thereby influence the normal work of optical cable, underground pressure makes the optical cable rigidity appear breaking easily simultaneously, makes information transmission trouble problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an underground optical cable with high compressive property, includes optic fibre, the outside of optic fibre is provided with the aramid fiber inoxidizing coating, and the outside of optic fibre and aramid fiber inoxidizing coating is provided with spacing, optic fibre, aramid fiber inoxidizing coating and spacing all are located the inboard of parcel layer, and the outside of parcel layer is connected with the resistance to compression board, the outside of parcel layer is provided with the filling layer, and the resistance to compression board is located the position between parcel layer and the filling layer, the outside of filling layer is provided with the buffering strip, and the outside of filling layer still is provided with the resistance to compression layer to the filling layer passes through buffering strip and resistance to compression layer interconnect.

Preferably, the limiting strip comprises a limiting plate and a salient point, the salient point is arranged on the surface of the limiting plate, and the limiting strip is located between the 3 optical fibers.

Preferably, the limiting plate is of a hollow arc-shaped spring piece structure, the limiting plates are distributed at equal angles, the salient points on the surface of the limiting plate are made of rubber, and the salient points are connected with the limiting plates in a hot melting mode.

Preferably, the wrapping layer is of a metal mesh structure, the wrapping layer and the compression-resistant plate are connected in a welding mode, and the compression-resistant plate is located on the outer side of the corresponding optical fiber.

Preferably, the buffer strips are positively cut into an S-shaped structure, the buffer strips are distributed at equal angles on the outer side of the filling layer, and the buffer strips are nested end to end.

preferably, the anti-pressure layer comprises a first wear layer, a buffering bead, a connecting strip and a second wear layer, the buffering bead and the connecting strip are both nested on the inner sides of the first wear layer and the second wear layer, and the buffering bead and the connecting strip are made of rubber.

Compared with the prior art, the beneficial effects of the utility model are that: the underground optical cable with high pressure resistance performance,

1. The optical cable can be subjected to elastic recovery while being subjected to adaptive deformation, so that the compression resistance is improved, the pressure can be buffered and dispersed, the optical cable is prevented from being subjected to rigid tearing caused by extrusion, and the protection capability of the optical cable is improved;

2. Hard sundries such as stones in the soil can be isolated, so that the optical cable is prevented from being scratched to influence normal work, the wear resistance and toughness of the optical cable are improved, and the information transmission work is more stable.

Drawings

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

FIG. 2 is a schematic structural view of the position-limiting strip of the present invention;

FIG. 3 is a schematic structural view of the buffering strip of the present invention;

fig. 4 is a schematic view of the wrapping layer structure of the present invention.

In the figure: 1. an optical fiber; 2. an aramid fiber protective layer; 3. a limiting strip; 301. a limiting plate; 302. salient points; 4. a wrapping layer; 5. a pressure resistant plate; 6. a filling layer; 7. a buffer strip; 8. a pressure resistant layer; 801. a first wear resistant layer; 802. a buffer bead; 803. a connecting strip; 804. a second wear resistant layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an underground optical cable with high pressure resistance comprises optical fibers 1, wherein an aramid fiber protective layer 2 is arranged on the outer side of each optical fiber 1, limiting strips 3 are arranged on the outer sides of the optical fibers 1 and the aramid fiber protective layer 2, each limiting strip 3 comprises a limiting plate 301 and a convex point 302, the convex points 302 are arranged on the surface of the limiting plate 301, and the limiting strips 3 are located among 3 optical fibers 1, so that the optical fibers 1 are conveniently separated and isolated, and the working stability among different optical fibers 1 is improved;

The optical fiber 1, the aramid fiber protective layer 2 and the limiting strips 3 are all located on the inner side of the wrapping layer 4, the outer side of the wrapping layer 4 is connected with the pressure resistant plate 5, the limiting plate 301 is of a hollow arc-shaped spring leaf structure, the limiting plate 301 is distributed at equal angles, the salient points 302 on the surface of the limiting plate 301 are made of rubber materials, the salient points 302 are in hot-melt connection with the limiting plate 301, when the optical fiber 1 is extruded by external pressure, the limiting plate 301 of the hollow arc-shaped spring leaf structure can push the optical fiber 1 to restore the initial position to avoid dislocation fracture, the filling layer 6 is arranged on the outer side of the wrapping layer 4, the pressure resistant plate 5 is located between the wrapping layer 4 and the filling layer 6, the wrapping layer 4 is of a metal mesh structure, the wrapping layer 4 is in welded connection with the pressure resistant plate 5, and the pressure resistant plate 5 is located on the outer side of the corresponding, the situation of scratching and breaking is avoided;

The outside of filling layer 6 is provided with buffering strip 7, and the outside of filling layer 6 still is provided with anti-pressure layer 8, and filling layer 6 is through buffering strip 7 and anti-pressure layer 8 interconnect, buffering strip 7 is just cuing open to "S" column structure, and buffering strip 7 is in the equal angular distribution in the outside of filling layer 6, and buffering strip 7 is nested end to end, conveniently receive the extrusion at buffering strip 7 and take place to relax the linkage after the deformation each other, conveniently cushion the dispersion to pressure, anti-pressure layer 8 includes first wearing layer 801, buffering pearl 802, connecting strip 803 and second wearing layer 804, and buffering pearl 802 and connecting strip 803 are all nested in the inboard of first wearing layer 801 and second wearing layer 804, and buffering pearl 802 and connecting strip 803 are the rubber material, be favorable to carrying out the multiple spot dispersion buffering to pressure, avoid the optical cable to suffer too big pressure and take place to fracture.

The working principle is as follows: according to fig. 1-4, firstly, the optical cable is laid and installed underground, when hard objects such as stones in the soil extrude the optical cable, the second wear-resistant layer 804 provides the first layer of wear-resistant protection, the second wear-resistant layer 804 extrudes the rubber buffer bead 802 after being extruded and deformed, the rubber buffer bead 802 performs the first buffer dispersion on the pressure, the connecting strips 803 between the buffer beads 802 improve the stability of the uniform distribution of the buffer beads 802, thereby facilitating the stable work of the buffer bead 802, when the pressure is too high and the whole pressure-resistant layer 8 is extruded and deformed, the pressure-resistant layer 8 extrudes the buffer strip 7 inwards, the buffer strip 7 performs the relaxation linkage with each other after being extruded, the pressure is buffered and dispersed, the pressure is prevented from being further transmitted to the inside of the optical cable, and the pressure-resistant plate 5 inside the filling layer 6 protects the protruded optical fiber 1, avoid optic fibre 1 to receive to draw the damage, when the displacement appears between optic fibre 1, the limiting plate 301 of the arcuation spring leaf structure between optic fibre 1 can promote optic fibre 1 and resume initial position, avoid taking place the dislocation fracture, and the aramid fiber inoxidizing coating 2 in the 1 outside of optic fibre then can protect optic fibre 1, and such underground optical cable that has high compressive property makes things convenient for people's use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An underground optical cable with high pressure resistance, comprising an optical fiber (1), characterized in that: the outside of optic fibre (1) is provided with aramid fiber inoxidizing coating (2), and the outside of optic fibre (1) and aramid fiber inoxidizing coating (2) is provided with spacing (3), optic fibre (1), aramid fiber inoxidizing coating (2) and spacing (3) all are located the inboard of parcel layer (4), and the outside of parcel layer (4) is connected with resistance to compression board (5), the outside of parcel layer (4) is provided with filling layer (6), and resistance to compression board (5) are located the position between parcel layer (4) and filling layer (6), the outside of filling layer (6) is provided with buffering strip (7), and the outside of filling layer (6) still is provided with resistance to compression layer (8) to filling layer (6) are through buffering strip (7) and resistance to compression layer (8) interconnect.

2. an underground optical cable having high pressure resistance according to claim 1, wherein: spacing strip (3) are including limiting plate (301) and bump (302), and the surface of limiting plate (301) is provided with bump (302), and spacing strip (3) are located between 3 optic fibre (1).

3. An underground optical cable having high pressure resistance according to claim 2, wherein: the limiting plate (301) is of a hollow arc-shaped spring piece structure, the limiting plate (301) is distributed at equal angles, the salient points (302) on the surface of the limiting plate (301) are made of rubber, and the salient points (302) are in hot-melt connection with the limiting plate (301).

4. An underground optical cable having high pressure resistance according to claim 1, wherein: the wrapping layer (4) is of a metal mesh structure, the wrapping layer (4) and the pressure resisting plate (5) are connected in a welding mode, and the pressure resisting plate (5) is located on the outer side of the corresponding optical fiber (1).

5. an underground optical cable having high pressure resistance according to claim 1, wherein: the buffer strips (7) are positively cut into an S-shaped structure, the buffer strips (7) are distributed on the outer side of the filling layer (6) at equal angles, and the buffer strips (7) are nested end to end.

6. An underground optical cable having high pressure resistance according to claim 1, wherein: the pressure-resistant layer (8) comprises a first wear-resistant layer (801), buffering beads (802), connecting strips (803) and a second wear-resistant layer (804), the buffering beads (802) and the connecting strips (803) are nested on the inner sides of the first wear-resistant layer (801) and the second wear-resistant layer (804), and the buffering beads (802) and the connecting strips (803) are made of rubber materials.