CN214795333U

CN214795333U - Inner skin line optical cable of 72-core chamber

Info

Publication number: CN214795333U
Application number: CN202120823468.6U
Authority: CN
Inventors: 刘学东
Original assignee: Shenzhen Trtfiber Tech Co ltd
Current assignee: Shenzhen Trtfiber Tech Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-11-19
Anticipated expiration: 2031-04-21

Abstract

The utility model relates to an optical cable technical field specifically is a 72 indoor rubber-insulated-wire cable of core, including wearing layer, first sheath, enhancement subassembly and anti bending assembly, the circumference inner wall parcel of wearing layer has fire-retardant layer, the circumference inner wall parcel on fire-retardant layer has the insulating layer, the circumference inner wall of insulating layer with the equal centre gripping of circumference outer wall of first sheath has the equidistance to be the second sheath of circular distribution, the cross section of second sheath is circular, the inside of second sheath is pegged graft and is had insulating cover, insulating cover circumference inner wall parcel has the sinle silk, the enhancement subassembly set up in the inside of second sheath is used for improving the holistic intensity of second sheath. The utility model discloses a setting can improve the holistic intensity of second sheath at the inside enhancement subassembly of second sheath, and the anti lateral pressure nature of second sheath can be improved through the anti bending component who sets up simultaneously, has made things convenient for operating personnel to be under construction the installation to it.

Description

Inner skin line optical cable of 72-core chamber

Technical Field

The utility model relates to an optical cable technical field specifically is an indoor rubber-insulated-wire cable of 72 cores.

Background

The 72-core optical cable is a communication cable in which 72 optical fibers (silica, silica glass as a component) are built. With the rapid development of optical fiber access technology, the demand of various indoor optical cables is also increasing, and among them, the rubber-insulated optical cable is favored by people due to its advantages and is widely used. The rubber-insulated optical cable is commonly called indoor suspended wiring optical cable. The conventional rubber-insulated-wire optical cable at present comprises a sheath, a reinforcement and an optical fiber, wherein the optical fiber is a bare fiber and is positioned in an optical fiber hole formed by the sheath at the center of the rubber-insulated-wire to form a loose-sleeve structure, and the optical fiber can not bear force; and reinforcing parts are respectively inserted in the protective layers at two sides of the optical fiber hole.

The existing rubber-insulated-wire optical cable is poor in tensile strength and lateral pressure resistance in the using process, and the rubber-insulated-wire optical cable is prone to breaking and the like when an operator conducts installation construction. Therefore, a 72-core inner-sheath optical cable is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Based on the weak point among the prior art mentioned in the above-mentioned background art, for this reason the utility model provides a 72 indoor rubber-insulated-wire cable.

The utility model discloses an adopt following technical scheme to overcome above technical problem, specifically do:

a72-core indoor inner-skin optical cable comprises a wear-resistant layer, a first sheath, a reinforcing assembly and an anti-bending assembly, wherein a flame-retardant layer wraps the circumferential inner wall of the wear-resistant layer, an insulating layer wraps the circumferential inner wall of the flame-retardant layer, second sheaths which are equidistantly and circularly distributed are clamped between the circumferential inner wall of the insulating layer and the circumferential outer wall of the first sheath, the cross section of each second sheath is circular, an insulating sleeve is inserted into the second sheath, and a wire core wraps the circumferential inner wall of each insulating sleeve;

the reinforcing component is arranged inside the second sheath and used for improving the strength of the whole second sheath;

the anti-bending component is arranged on the circumferential outer wall of the second sheath and used for improving the lateral pressure resistance of the second sheath.

As a further aspect of the present invention: the supporting plate is fixedly connected to the inner wall of the circumference of the first sheath, and the cross section of the supporting plate is cross-shaped.

As a further aspect of the present invention: the reinforcing component comprises two groups of reinforcing cores inserted in the second sheath.

As a further aspect of the present invention: the anti-bending component comprises a first groove arranged on the outer wall of the circumference of the second sheath, and the cross section of the first groove is in an isosceles trapezoid shape.

As a further aspect of the present invention: the spring is fixedly connected to the inner walls of the two sides of the first groove, and the spring is far away from one end of the first groove and fixedly connected with the buffer plate.

As a further aspect of the present invention: a second groove is formed in the bottom of the first groove, and the cross section of the second groove is in an isosceles triangle shape.

Compared with the prior art, the beneficial effects of the utility model are that: through setting up the reinforcing component in second sheath inside, can improve the holistic intensity of second sheath, the anti lateral pressure nature of second sheath can be improved through the anti bending component who sets up simultaneously, has made things convenient for operating personnel to be under construction the installation to it.

Drawings

Fig. 1 is a schematic view of the unfolding structure of the present invention.

Fig. 2 is an enlarged schematic structural diagram of a position a of the present invention.

Fig. 3 is a schematic view of the sectional structure of the end face of the present invention.

Fig. 4 is a schematic sectional view of the second sheath of the present invention.

In the figure: 1. a wear layer; 2. a flame retardant layer; 3. an insulating layer; 4. a support plate; 5. a first sheath; 6. an insulating sleeve; 7. a wire core; 8. a reinforcing core; 9. a second sheath; 10. a first groove; 11. a second groove; 12. a spring; 13. a buffer plate.

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 to 4, in an embodiment of the present invention, a 72-core indoor rubber-insulated-wire optical cable includes a wear-resistant layer 1, a first sheath 5, a reinforcing component and an anti-bending component, a flame-retardant layer 2 is wrapped on a circumferential inner wall of the wear-resistant layer 1, an insulating layer 3 is wrapped on a circumferential inner wall of the flame-retardant layer 2, second sheaths 9 which are equidistantly and circularly distributed are clamped on circumferential inner walls of the insulating layer 3 and circumferential outer walls of the first sheath 5, a cross section of the second sheath 9 is circular, an insulating sleeve 6 is inserted into the second sheath 9, and a core 7 is wrapped on a circumferential inner wall of the insulating sleeve 6;

the reinforcing component is arranged inside the second sheath 9 and used for improving the strength of the whole second sheath 9;

the anti-bending component is arranged on the circumferential outer wall of the second sheath 9 and used for improving the lateral pressure resistance of the second sheath 9;

can guarantee through wearing layer 1, fire-retardant layer 2 and the insulating layer 3 that sets up that whole optical cable body has good wearability, fire resistance and insulating nature, simultaneously through setting up the subassembly of strengthening in second sheath 9 is inside, can improve the holistic intensity of second sheath 9, and can improve the anti lateral pressure nature of second sheath 9 through the anti subassembly of bending that sets up, made things convenient for operating personnel to construct the installation to it.

In one embodiment of the present invention, the inner wall of the circumference of the first sheath 5 is fixedly connected with a support plate 4, and the cross section of the support plate 4 is cross-shaped;

because the cross section of the supporting plate 4 is cross-shaped, a certain supporting capacity can be provided for the first sheath 5, and meanwhile, the stability of the second sheath 9 after installation is also ensured.

In another embodiment of the present invention, the reinforcing assembly comprises two groups of reinforcing cores 8 inserted inside the second sheath 9;

the tensile strength of the second sheath 9 as a whole can be improved by the reinforcing core 8 inserted into the second sheath 9.

In another embodiment of the present invention, the anti-bending component includes a first groove 10 formed on the outer wall of the circumference of the second sheath 9, and the cross section of the first groove 10 is an isosceles trapezoid;

because the first groove 10 has been seted up to the circumference outer wall of second sheath 9, the cross section of first groove 10 is isosceles trapezoid simultaneously, consequently can improve the holistic anti side pressure effect of second sheath 9.

In another embodiment of the present invention, the inner walls of the two sides of the first groove 10 are both fixedly connected with springs 12, and one end of the spring 12 away from the first groove 10 is fixedly connected with a buffer plate 13;

when the second sheath 9 is subjected to lateral pressure, the pressure resistance of the bending-resistant assembly can be further improved through the interaction of the spring 12 and the buffer plate 13.

In another embodiment of the present invention, a second groove 11 is disposed at the bottom of the first groove 10, and the cross section of the second groove 11 is an isosceles triangle;

because the second groove 11 has been seted up to the bottom of first groove 10, and the cross section of second groove 11 is isosceles triangle, has made things convenient for operating personnel to peel off second sheath 9 and has leaked sinle silk 7.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention.

Claims

1. A72-core indoor inner-skin optical cable comprises a wear-resistant layer (1), a first sheath (5), a reinforcing assembly and an anti-bending assembly, and is characterized in that the inner wall of the circumference of the wear-resistant layer (1) is wrapped with a flame-retardant layer (2), the inner wall of the circumference of the flame-retardant layer (2) is wrapped with an insulating layer (3), the inner wall of the circumference of the insulating layer (3) and the outer wall of the circumference of the first sheath (5) are clamped with second sheaths (9) which are equidistantly and circularly distributed, the cross section of each second sheath (9) is circular, an insulating sleeve (6) is inserted into the second sheath (9), and the inner wall of the circumference of each insulating sleeve (6) is wrapped with a wire core (7);

the reinforcing component is arranged inside the second sheath (9) and is used for improving the strength of the whole second sheath (9);

the anti-bending component is arranged on the circumferential outer wall of the second sheath (9) and used for improving the lateral pressure resistance of the second sheath (9).

2. A 72-core indoor covered wire optical cable according to claim 1, characterized in that a supporting plate (4) is fixedly connected to the circumferential inner wall of the first sheath (5), and the cross section of the supporting plate (4) is cross-shaped.

3. A 72-core indoor covered wire optical cable according to claim 2, wherein the reinforcing assembly comprises two groups of reinforcing cores (8) inserted inside the second sheath (9).

4. A 72-core indoor covered wire optical cable according to claim 3, wherein the bending-resistant component comprises a first groove (10) formed on the outer circumferential wall of the second sheath (9), and the cross section of the first groove (10) is isosceles trapezoid.

5. A72-core indoor covered wire optical cable according to claim 4, characterized in that springs (12) are fixedly connected to the inner walls of the two sides of the first groove (10), and a buffer plate (13) is fixedly connected to one end, far away from the first groove (10), of each spring (12).

6. The 72-core indoor covered wire optical cable according to claim 5, wherein a second groove (11) is formed at the bottom of the first groove (10), and the cross section of the second groove (11) is an isosceles triangle.