CN217035223U

CN217035223U - Composite cable with increased core wire fireproof performance

Info

Publication number: CN217035223U
Application number: CN202220829504.4U
Authority: CN
Inventors: 王俊坡; 杨永佳; 李汉枫
Original assignee: Guangdong Wanruitong Cable Industry Co ltd
Current assignee: Guangdong Wanruitong Cable Industry Co ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-07-22
Anticipated expiration: 2032-04-11

Abstract

A composite cable for improving core wire fire resistance relates to the field of cables and comprises a cable body, optical fibers and a waterproof sealing sleeve, wherein a plurality of groups of optical fibers are arranged in an inner cavity of the cable body in a surrounding mode, the waterproof sealing sleeve is wrapped on the surface of each optical fiber, a metal wire net layer is arranged on the surface of the outer wall of the cable body, a glass fiber layer is arranged on the inner wall of the metal wire net layer, compression rings are arranged on the inner wall of each glass fiber layer at equal intervals, an electromagnetic shielding layer is arranged on the inner wall of each compression ring, fiber paste is arranged on the inner wall of the electromagnetic shielding layer, steel bars are arranged in the middle of an inner cavity of the fiber paste, the optical fibers are arranged around the steel bars in a surrounding mode, and tensile iron wires are arranged at the top of the inner cavity of the fiber paste; this is novel to solve current composite cable surface and be the rubber material to do not possess the fire proofness, thereby the cable is meetting the open fire after, can cause the problem of cable damage.

Description

Composite cable with core wire fireproof performance

Technical Field

The utility model relates to the field of cables, in particular to a composite cable for improving the fireproof performance of core wires.

Background

An optical fiber cable (optical fiber cable) is a telecommunications cable consisting of two or more glass or plastic optical fiber cores, which are located within a protective covering, covered by a plastic PVC outer jacket. The signal transmission along the internal optical fiber generally uses infrared rays, the photoelectric composite cable is suitable for being used as a transmission line in a broadband access network system, and is a novel access mode, the photoelectric composite cable integrates optical fiber and a transmission copper wire into a whole, the problems of broadband access, equipment power utilization and signal transmission can be solved, along with the explosion of communication services, telephone services in communication network services are in a stable growth trend, data services are in an exponential growth situation, and multimedia such as voice, data, images and the like are required to be transmitted, so that larger network capacity and wider bandwidth are required.

The surface of the existing composite cable is made of rubber and does not have fire resistance, so that the cable can be damaged after encountering open fire.

SUMMERY OF THE UTILITY MODEL

Objects of the first utility model

In order to solve the technical problems in the background art, the utility model provides a composite cable for improving the fireproof performance of a core wire, wherein the outermost layer of a cable body is provided with a metal wire mesh layer, the metal wire mesh layer cannot be ignited in open fire, and meanwhile, a glass fiber layer is an inorganic non-metallic material with excellent performance, has the characteristics of good insulation, strong heat resistance and strong corrosion resistance, can be used for blocking heat caused by open fire combustion through the glass fiber layer, reduces the damage to optical fibers, and can effectively improve the fireproof performance of the cable body in use.

(II) technical scheme

In order to solve the problems, the utility model provides a composite cable for improving the fireproof performance of core wires, which comprises a cable body, optical fibers and a waterproof sealing sleeve, wherein a plurality of groups of optical fibers are arranged in the inner cavity of the cable body in a surrounding mode, the waterproof sealing sleeve is wrapped on the surfaces of the optical fibers, a metal wire mesh layer is arranged on the surface of the outer wall of the cable body, a glass fiber layer is arranged on the inner wall of the metal wire mesh layer, and compression resistant rings are arranged on the inner wall of the glass fiber layer at equal intervals.

Preferably, the inner wall of the anti-pressure ring is provided with an electromagnetic shielding layer.

Preferably, the inner wall of the electromagnetic shielding layer is provided with a fiber paste.

Preferably, the middle part of the inner cavity of the fiber paste is provided with a steel bar, and the optical fiber is annularly arranged around the steel bar.

Preferably, tensile iron wires are arranged at the top of the inner cavity of the fiber paste.

The technical scheme of the utility model has the following beneficial technical effects:

1. this novel outermost wire mesh layer that is equipped with of cable body, wire mesh layer also can't be lighted in the naked light, and the glass fiber layer is the inorganic non metallic material of a performance excellence simultaneously, has insulating nature good, the heat resistance is strong and characteristics that corrosion resistance is strong, can carry out the separation to the heat that the naked light burning brought through the glass fiber layer, reduces the injury that brings the optical fiber, can effectively promote the fire behavior of cable body when using.

2. This internal chamber of cable is distributed setting in this novel optic fibre, leave sufficient heat dissipation space between the optic fibre, thereby promote the radiating effect of cable body in the use, optical fiber surface is equipped with waterproof sealing cover, waterproof sealing cover adopts high-quality silicon rubber material, carry out the cladding to optic fibre through waterproof sealing cover, thereby can be at the in-process that uses, avoid liquid to permeate optical fiber surface, can effectively promote the waterproof nature of cable body in the use, waterproof sealing cover surface cladding has fine cream, fine cream has the effect of moisture absorption, thereby prevent water and moisture invasion and attack optic fibre, fine cream and waterproof sealing cover mutually support promotion that can step forward to the water-proof effects of optic fibre.

Drawings

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

FIG. 2 is a schematic longitudinal sectional view of the present invention;

FIG. 3 is a cross-sectional structure of the present invention.

Reference numerals:

1. a cable body; 101. an optical fiber; 102. a waterproof sealing sleeve; 2. fiber paste; 201. a steel bar; 202. tensile iron wires; 3. an electromagnetic shielding layer; 4. an anti-compression ring; 5. a glass fiber layer; 6. a wire mesh layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the accompanying drawings in combination with the embodiments. It is to be understood that these descriptions are only illustrative and are not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-3, the composite cable for increasing the core wire fireproof performance provided by the utility model comprises a cable body 1, optical fibers 101 and a waterproof sealing sleeve 102, wherein a plurality of groups of optical fibers 101 are annularly arranged in an inner cavity of the cable body 1, the waterproof sealing sleeve 102 is wrapped on the surfaces of the optical fibers 101, a metal wire mesh layer 6 is arranged on the outer wall surface of the cable body 1, a glass fiber layer 5 is arranged on the inner wall of the metal wire mesh layer 6, and compression resistant rings 4 are equidistantly arranged on the inner wall of the glass fiber layer 5.

It should be noted that the inner wall of the anti-pressure ring 4 is provided with an electromagnetic shielding layer 3.

In an alternative embodiment, the electromagnetic shielding layer 3 is a copper wire mesh layer, which is used to suppress the influence of the high-frequency electromagnetic field, so that the interference field forms eddy currents in the shielding body and generates reflection on the interface between the shielding body and the protected space, thereby greatly weakening the field strength value of the interference field in the protected space, reducing the interference on the optical fiber 101, and improving the stability of the optical fiber 101 to signal transmission.

It should be noted that the inner wall of the electromagnetic shielding layer 3 is provided with a fiber paste 2.

In an alternative embodiment, the fiber paste 2 has a moisture absorbing function, so as to prevent water and moisture from invading the optical fiber 101, and the fiber paste 2 and the waterproof sealing sleeve 102 cooperate to further improve the waterproof effect on the optical fiber 101.

It should be noted that a steel bar 201 is arranged in the middle of the inner cavity of the fiber paste 2, and the optical fiber 101 is annularly arranged around the steel bar 201.

In an optional embodiment, the steel bar 201 can support the cable body 1, so as to prevent the cable body 1 from being bent during use, thereby preventing the optical fiber 101 from being broken.

It should be noted that a tensile iron wire 202 is arranged at the top of the inner cavity of the fiber paste 2.

In an alternative embodiment, tensile iron wire 202 may increase the tensile strength of cable body 1 in use.

In the utility model, a plurality of groups of optical fibers 101 are arranged around the inner cavity of a cable body 1, the optical fibers 101 can transmit signals in the use process, the optical fibers 101 are provided with a plurality of groups, the transmission intensity of the signals can be improved, meanwhile, the inner cavity of the cable body 1 in the optical fibers 101 is distributed, and enough heat dissipation space is reserved between the optical fibers 101, so that the heat dissipation effect of the cable body 1 in the use process is improved, a waterproof sealing sleeve 102 is arranged on the surface of the optical fibers 101, the waterproof sealing sleeve 102 is made of high-quality silicone rubber materials, the optical fibers 101 are coated by the waterproof sealing sleeve 102, so that liquid is prevented from permeating into the surface of the optical fibers 101 in the use process, the water resistance of the cable body 1 in the use process can be effectively improved, the surface of the waterproof sealing sleeve 102 is coated with fiber paste 2, the fiber paste 2 has the moisture absorption effect, so that water and moisture are prevented from invading the optical fibers 101, and the waterproof effect on the optical fibers 101 can be further improved by the mutual matching of the fiber paste 2 and the waterproof sealing sleeve 102, meanwhile, the fiber paste 2 can also play a role in mechanically buffering the optical fiber 101 and better guarantee the service life of the optical fiber 101, the steel bar 201 is arranged in the middle of the fiber paste 2, the steel bar 201 can support the cable body 1 to prevent the cable body 1 from being bent in the using process to cause the fracture of the optical fiber 101, meanwhile, the tensile iron wire 202 and the steel bar 201 are matched with each other to improve the tensile resistance of the cable body 1 in the using process to prevent the optical fiber 101 from being fractured after the cable body 1 is pulled by external force, the compression ring 4 can support the inner cavity of the cable body 1 and can improve the compression resistance of the cable body 1 in the using process by being matched with the fiber paste 2, the electromagnetic shielding layer 3 is a copper wire mesh layer and is used for suppressing the influence of a high-frequency electromagnetic field, so that an interference field forms a vortex in the shielding body and is reflected on the interface of the shielding body and a protected space, thereby greatly weakening the field intensity value of the interference field in the protected space, the reduction is to optic fibre 101's interference, promote optic fibre 101 to signal transmission's stability, 1 outmost being equipped with wire mesh layer 6 of cable body, wire mesh layer 6 also can't be ignited in the naked light, glass fiber layer 5 is the inorganic non-metallic material of a performance excellence simultaneously, it is good to have insulating nature, the heat resistance is strong and the strong characteristics of corrosion resistance, can carry out the separation to the heat that the naked light burning brought through glass fiber layer 5, reduce the injury that brings optic fibre 101, can effectively promote the fire behavior of cable body 1 when the use.

It should be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modifications, equivalents, improvements and the like which are made without departing from the spirit and scope of the present invention shall be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundary of the appended claims, or the equivalents of such scope and boundary.

Claims

1. The utility model provides an increase compound cable of heart yearn fire behavior, includes cable body (1), optic fibre (101), waterproof sealing cover (102), cable body (1) inner chamber ring is equipped with a plurality of optical fibre of group (101), optic fibre (101) surface cladding has waterproof sealing cover (102), its characterized in that, cable body (1) outer wall surface is equipped with wire mesh layer (6), wire mesh layer (6) inner wall is equipped with glass fiber layer (5), glass fiber layer (5) inner wall equidistance is equipped with resistance to compression ring (4).

2. The composite cable with the increased core wire fire-proof performance according to claim 1, wherein the inner wall of the compression-resistant ring (4) is provided with an electromagnetic shielding layer (3).

3. The composite cable for increasing the fire-proof performance of the core wires according to claim 2, wherein the inner wall of the electromagnetic shielding layer (3) is provided with the fiber paste (2).

4. A composite cable with increased fire-protecting property for core wire according to claim 3, wherein a steel bar (201) is provided in the middle of the inner cavity of the fiber paste (2), and the optical fiber (101) is disposed around the steel bar (201).

5. The composite cable with increased fire-retardant performance of core wire as claimed in claim 4, wherein tensile iron wire (202) is disposed on top of the inner cavity of the fiber paste (2).