CN219066473U

CN219066473U - Novel flexible fireproof cable

Info

Publication number: CN219066473U
Application number: CN202223196567.XU
Authority: CN
Inventors: 郭若鹏; 侯晓英; 陈志杰
Original assignee: Fujian Xinyiyuan Cable Co ltd
Current assignee: Fujian Xinyiyuan Cable Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-05-23
Anticipated expiration: 2032-11-30

Abstract

The utility model belongs to the technical field of cables, and particularly relates to a novel flexible fireproof cable, which comprises a cable core, wherein a shielding pipe is wrapped on the outer side of the cable core, a heat insulation filling layer is arranged on the outer side of the shielding pipe, an adhesive layer is arranged on the outer side of the heat insulation filling layer, a fiber filling layer is arranged on the outer side of the adhesive layer, a flexible layer is arranged on the outer side of the fiber filling layer, a heat insulation layer is arranged on the outer side of the flexible layer, and a flame retardant layer is arranged on the outer side of the heat insulation layer. According to the utility model, the heat insulation filling layer is additionally arranged on the outer side of the cable core, the heat insulation layer and the flame retardant layer can be used for blocking flame and high temperature on the outer side, so that heat transfer can be reduced, cable combustion is avoided, and the heat blocking can be further carried out on the cable core through the heat insulation filling layer on the outer side of the shielding sleeve, so that the cable can be prevented from being combusted in a bidirectional manner on the outer side and the inner side.

Description

Novel flexible fireproof cable

Technical Field

The utility model relates to the technical field of cables, in particular to a novel flexible fireproof cable.

Background

The cable is made of one or more mutually insulated conductors and an outer insulating protective layer, wires that transfer power or information from one place to another. The utility model patent with the bulletin number of CN205451835U discloses a novel flexible fireproof cable, which comprises a conductor, wherein the outer side of the conductor is sequentially coated with a polyvinyl chloride insulating sleeve and a shielding sleeve woven by copper wires, the outer side of the shielding sleeve is coated with a ceramic fluororubber insulating layer, a gap of the shielding sleeve coated with the ceramic fluororubber insulating layer is filled with a layer of aluminum hydroxide flame retardant filler, the outer side of the ceramic fluororubber insulating layer is coated with a shielding belt, the outer side of the shielding belt is coated with a glass fiber layer, the outer side of the glass fiber layer is coated with a fireproof layer, the outer side of the fireproof layer is coated with a PVC elastomer protective sleeve, the fireproof layer consists of a plurality of fireproof belts with circular cross sections, the fireproof belts are mutually circumferentially tangent, and the fireproof belt material is chlorinated rubber containing glass fibers; the cable has excellent fireproof performance, can continuously supply power under the condition of high-temperature burning, and has excellent shielding effectiveness. However, the existing fireproof cable is only flame-retardant on the outer side, when the cable is roasted, the internal shielding sleeve and other structures are easily melted or spontaneously burned to reduce the fire resistance of the cable, and aluminum hydroxide materials are additionally arranged in the cable to block heat, so that the flexibility of the cable is reduced due to the aluminum hydroxide flame-retardant filler, and the flexibility of the cable is reduced to influence the degree of freedom in laying. Therefore, improvements are needed.

Disclosure of Invention

The utility model aims to provide a novel flexible fireproof cable, which solves the problems of poor flame retardance and lower flexibility.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a novel flexible fireproof cable, includes the cable core, the outside parcel of cable core has the shielding pipe, the outside of shielding pipe is provided with thermal-insulated filling layer, the outside of thermal-insulated filling layer is provided with the adhesive linkage, the outside of adhesive linkage is provided with the fibre filling layer, the outside of fibre filling layer is provided with the flexible layer, the outside of flexible layer is provided with the insulating layer, the outside of insulating layer is provided with fire-retardant layer, the inside of cable core is provided with the steel wire.

Preferably, the heat insulation filling layer is made of an alumina fiber material, and the fiber filling layer is made of an inorganic fiber material, and the alumina fiber material has good flexibility and low heat conductivity.

Preferably, the adhesive layer is made of a self-adhesive emulsion material, and the adhesive layer can increase the connection strength between the heat insulation filling layer and the fiber filling layer.

Preferably, the flexible layer is made of rubber material, and the flexible layer can increase the elasticity of the whole cable.

Preferably, the heat insulating layer is made of an aluminum foil material, and the aluminum foil material has good heat insulation.

Preferably, the flame retardant layer is made of flexible flame retardant rubber material, the flame retardant layer is in a strip shape, the flame retardant layer is wound on the outer side of the heat insulation layer, and the wound flame retardant layer can reduce the internal stress of the outermost layer so as to improve the outermost flexibility.

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

1. according to the utility model, the heat insulation filling layer is additionally arranged on the outer side of the cable core, the heat insulation layer and the flame retardant layer can be used for blocking flame and high temperature on the outer side, so that heat transfer can be reduced, cable combustion is avoided, and the heat blocking can be further carried out on the cable core through the heat insulation filling layer on the outer side of the shielding sleeve, so that the cable can be prevented from being combusted in a bidirectional manner on the outer side and the inner side.

2. According to the utility model, the flexible layer, the steel wire and other structures are additionally arranged in the cable, so that the strength of the cable can be increased through the flexible layer and the steel wire, the bending internal stress of the outermost layer can be reduced through the winding type flame-retardant layer, the bending strength can be reduced, and the flexibility is increased through replacing the filled heat-insulating material, so that the flexibility of the cable can be effectively improved.

Drawings

FIG. 1 is a perspective view of the structure of the present utility model;

fig. 2 is a cross-sectional view of fig. 1 of the present utility model.

In the figure: 1. a cable core; 2. a shielding tube; 3. a thermal insulation filling layer; 4. an adhesive layer; 5. a fiber filling layer; 6. a flexible layer; 7. a thermal insulation layer; 8. a flame retardant layer; 9. and (3) a steel wire.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 2, a novel flexible fireproof cable comprises a cable core 1, a shielding pipe 2 is wrapped on the outer side of the cable core 1, a heat insulation filling layer 3 is arranged on the outer side of the shielding pipe 2, the heat insulation filling layer 3 is made of an alumina fiber material, and a fiber filling layer 5 is made of an inorganic fiber material, wherein the alumina fiber material has good flexibility and low heat conductivity.

Referring to fig. 1 and 2, an adhesive layer 4 is disposed on the outer side of the heat insulation filling layer 3, a fiber filling layer 5 is disposed on the outer side of the adhesive layer 4, a flexible layer 6 is disposed on the outer side of the fiber filling layer 5, the adhesive layer 4 is made of self-adhesive emulsion material, the adhesive layer 4 can increase the connection strength between the heat insulation filling layer 3 and the fiber filling layer 5, the flexible layer 6 is made of rubber material, and the flexible layer 6 can increase the overall elasticity of the cable.

Referring to fig. 1 and 2, a heat insulation layer 7 is disposed on the outer side of the flexible layer 6, a flame retardant layer 8 is disposed on the outer side of the heat insulation layer 7, steel wires 9 are disposed in the cable core 1, the heat insulation layer 7 is made of an aluminum foil material, the aluminum foil material has good heat insulation, the flame retardant layer 8 is made of a flexible flame retardant rubber material, the flame retardant layer 8 is in a strip shape, the flame retardant layer 8 is wound on the outer side of the heat insulation layer 7, and the wound flame retardant layer 8 can reduce the internal stress of the outermost layer to improve the outermost flexibility.

The specific implementation process of the utility model is as follows: when flame burns outside the cable, the flame retardant layer 8 can avoid the cable to burn, the heat insulating layer 7 can separate the high temperature of the flame retardant layer 8, the heat insulating layer 7 can slowly transfer heat to the flexible layer 6 and the fiber filling layer 5 after long-time roasting, and the heat can be separated again when transferred to the heat insulating filling layer 3, so that the flame retardance of the cable can be improved, the elasticity of the cable can be increased through the flexible layer 6, the bending strength of the cable can be reduced through the flame retardant layer 8 wound outside the heat insulating layer 7, and the flexibility of the circuit is improved.

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

Claims

1. The utility model provides a novel flexible fireproof cable, includes cable core (1), its characterized in that: the cable core is characterized in that a shielding pipe (2) is wrapped on the outer side of the cable core (1), a heat insulation filling layer (3) is arranged on the outer side of the shielding pipe (2), an adhesive layer (4) is arranged on the outer side of the heat insulation filling layer (3), a fiber filling layer (5) is arranged on the outer side of the adhesive layer (4), a flexible layer (6) is arranged on the outer side of the fiber filling layer (5), a heat insulation layer (7) is arranged on the outer side of the flexible layer (6), a flame retardant layer (8) is arranged on the outer side of the heat insulation layer (7), and steel wires (9) are arranged inside the cable core (1).

2. The novel flexible fire-resistant cable according to claim 1, wherein: the heat insulation filling layer (3) is made of alumina fiber material, and the fiber filling layer (5) is made of inorganic fiber material.

3. The novel flexible fire-resistant cable according to claim 1, wherein: the adhesive layer (4) is made of a self-adhesive emulsion material.

4. The novel flexible fire-resistant cable according to claim 1, wherein: the flexible layer (6) is made of a rubber material.

5. The novel flexible fire-resistant cable according to claim 1, wherein: the heat insulation layer (7) is made of aluminum foil material.

6. The novel flexible fire-resistant cable according to claim 1, wherein: the flame-retardant layer (8) is made of flexible flame-retardant rubber materials, the flame-retardant layer (8) is strip-shaped, and the flame-retardant layer (8) is wound on the outer side of the heat-insulating layer (7).