CN217847450U

CN217847450U - Flexible fireproof cable

Info

Publication number: CN217847450U
Application number: CN202221632893.8U
Authority: CN
Inventors: 南章选; 南博; 王明波
Original assignee: Sichuan Tongli Cable Co ltd
Current assignee: Sichuan Tongli Cable Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-11-18
Anticipated expiration: 2032-06-27

Abstract

The utility model discloses a flexible fireproof cable, including electrically conductive core, the quantity of electrically conductive core is five, every the outside of electrically conductive core is all overlapped and is equipped with the polyethylene insulating layer, five the outside cover of polyethylene insulating layer is equipped with fire-retardant flame retardant coating, the outside cover of fire-retardant flame retardant coating is equipped with the steel wire and strengthens the plaiting unit layer, the outside cover that the steel wire strengthened the plaiting unit layer is equipped with the heat preservation, the outside cover of heat preservation is equipped with mica tape high temperature resistant layer, the outside cover of mica tape high temperature resistant layer is equipped with the outer protective layer, and is equipped with the compressive layer between outer protective layer and the mica tape high temperature resistant layer. The utility model discloses a flexible fireproof cable, electrically conductive effectual, the fire resistance is strong, and high temperature resistant fire behavior is high, and tensile, compressive strength are high, and the wearability is strong, and do not influence flexibility, and this device functionality is stronger, and life is longer.

Description

Flexible fireproof cable

Technical Field

The utility model relates to the technical field of cables, specifically flexible fireproof cable.

Background

The cable field, present general structure all is that inside center department is the conductor, the conductor outside is the polyethylene insulating layer, the outer layer of polyethylene insulating layer is for weaving the outer conductor layer, outmost plastics oversheath layer that sets up, this kind of cable has the advantage simple production, easy popularization, but it can't realize fine fire proofness, along with the development of society, high-rise building, the fire prevention of important building is more and more paid attention to for improving the fire prevention safety class, can adopt flame retarded cable, fire resisting cable, aluminium sheath mineral substance insulated cable under the general condition, the building that requires high to the fire prevention, fire resisting cable can all be chooseed for use like finance mansion, large-scale museum, large-scale theater etc..

In a flexible fireproof cable (patent number: CN 204087851U) in chinese patent, the device includes a conductor, a fire-resistant polyethylene insulating layer, a fire-resistant expansion layer and a metal sheath, a fire-resistant mica tape is wrapped around the exterior of the conductor, an insulating tape is wrapped around the exterior of the fire-resistant mica tape to form the fire-resistant polyethylene insulating layer, a plurality of cable cores with the fire-resistant polyethylene insulating layer are twisted into a cable, the fire-resistant expansion layer is wrapped by extrusion, or the fire-resistant expansion layer is directly wrapped around the exterior of the fire-resistant polyethylene insulating layer of a single conductor, and finally the metal sheath is wrapped longitudinally outside a cable with the fire-resistant expansion layer, the longitudinally wrapped metal sheath is a copper tape, and the copper tape is welded and rolled after being longitudinally wrapped, so that a gap between the metal sheath and the cable inside the metal sheath is about 1mm, the device has excellent fireproof performance and can continuously supply power under the condition of high-temperature firing, however, the flexible fireproof cable is too simple in structure, general in fireproof and high-temperature protection, and inconvenient in use, and short service life, and poor in flexibility. Accordingly, one skilled in the art has provided a flexible fire-resistant cable to solve the problems set forth in the background above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flexible fireproof cable to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: flexible fireproof cable, including electrically conductive core, the quantity of electrically conductive core is five, every the outside of electrically conductive core all is overlapped and is equipped with polyethylene insulating layer, five polyethylene insulating layer's outside cover is equipped with fire-retardant flame retardant coating, fire-retardant flame retardant coating's outside cover is equipped with the steel wire and strengthens compiling the stratum reticulare, the outside cover that the stratum reticulare were compiled in the steel wire enhancement is equipped with the heat preservation, the outside cover of heat preservation is equipped with the high temperature resistant layer of mica tape, the outside cover on the high temperature resistant layer of mica tape is equipped with the outer protective layer, and is equipped with the compressive layer between outer protective layer and the high temperature resistant layer of mica tape.

As the utility model discloses further scheme again: the conductive core is formed by twisting seven pure copper wires.

As a further aspect of the present invention: and flame-retardant polystyrene particles are filled in the gap between the flame-retardant fireproof layer and the polyethylene insulating layer.

As a further aspect of the present invention: the flame-retardant fireproof layer is made of a magnesium hydroxide fireproof flame-retardant material component.

As the utility model discloses further scheme again: the heat preservation layer adopts the cotton material component of heat preservation bubble.

As a further aspect of the present invention: the outer protective layer is made of low-smoke halogen-free flame-retardant polyolefin material.

As a further aspect of the present invention: the compression-resistant layer is formed by weaving elastic bands and filled with non-Newtonian fluid materials.

Compared with the prior art, the beneficial effects of the utility model are that: in this device, electrically conductive core is formed by seven pure copper silk threads hank winds, electrically conductive effectual, it is effectual to adopt the polyethylene insulating layer to insulate, adopt magnesium hydrate fire-retardant material's fire-retardant flame retardant coating, improve the fire resistance, it has fire-retardant polyphenyl granule to fill in fire-retardant flame retardant coating and polyethylene insulating layer's gap department, improve high temperature resistance fire behavior, adopt the steel wire to strengthen the netting layer and improve tensile strength nature, adopt the heat preservation of the cotton material of heat preservation bubble, improve heat preservation, adopt mica tape high temperature resistance layer to improve high temperature resistance, adopt the outer protective layer of low smoke and zero halogen fire-retardant polyolefin material, wear resistance is strong, be equipped with the compressive layer between outer protective layer and the mica tape high temperature resistance layer, the compressive effect is good, and do not influence the flexibility, this device is functional stronger, and service life is longer.

Drawings

FIG. 1 is a schematic perspective view of a flexible fireproof cable;

fig. 2 is a schematic cross-sectional structure diagram of the flexible fireproof cable.

In the figure: 1. a conductive core; 2. a polyethylene insulating layer; 3. a flame-retardant and fire-proof layer; 4. reinforcing the net layer by steel wires; 5. a heat-insulating layer; 6. a mica tape high temperature resistant layer; 7. an outer protective layer; 8. a pressure resistant layer; 9. flame-retardant polyphenyl particles.

Detailed Description

Referring to fig. 1-2, in the embodiment of the present invention, a flexible fireproof cable includes conductive cores 1, the number of the conductive cores 1 is five, the structure is firm, the conductive effect is strong, a polyethylene insulating layer 2 is sleeved on the outer side of each conductive core 1, the insulation performance is strong, a flame retardant fireproof layer 3 is sleeved on the outer side of each of the five polyethylene insulating layers 2, the flame retardant fireproof performance is improved, a steel wire reinforced mesh layer 4 is sleeved on the outer side of the flame retardant fireproof layer 3, the tensile strength is improved, a heat insulation layer 5 is sleeved on the outer side of the steel wire reinforced mesh layer 4, the heat insulation performance is improved, a mica tape high temperature resistant layer 6 is sleeved on the outer side of the heat insulation layer 5, the high temperature resistance is improved, an outer protective layer 7 is sleeved on the outer side of the mica tape high temperature resistant layer 6, the wear resistance is strong, a pressure resistant layer 8 is arranged between the outer protective layer 7 and the mica tape high temperature resistant layer 6, the compression resistance effect is good, the flexibility is not affected, the device is more functional, and the service life is longer;

in fig. 2: the conductive core body 1 is formed by twisting seven pure copper wires, so that the conductive effect is good;

in fig. 2: the gap between the flame-retardant and fireproof layer 3 and the polyethylene insulating layer 2 is filled with flame-retardant polyphenyl particles 9, so that the high-temperature resistance and the fireproof performance are improved;

in fig. 2: the flame-retardant fireproof layer 3 is made of a magnesium hydroxide fireproof flame-retardant material component, so that the flame-retardant fireproof effect is good;

in fig. 2: the heat preservation layer 5 is made of a heat preservation foam material component, so that the heat preservation performance is improved;

in fig. 2: the outer protective layer 7 is made of a low-smoke halogen-free flame-retardant polyolefin material component, so that the wear resistance is high;

in fig. 2: the compression resistant layer 8 is formed by weaving elastic bands, and the compression resistant layer 8 is filled with non-Newtonian fluid materials, so that the compression resistant effect is good, and the flexibility is not influenced.

The utility model discloses a theory of operation is: in this device, electrically conductive core 1 is formed by seven pure copper silk threads hank winds, electrically conductive effectual, it is effectual to adopt the insulating of polyethylene insulating layer 2, adopt magnesium hydrate fire-retardant material's fire-retardant flame retardant coating 3, improve the fire resistance, it has fire-retardant polyphenyl granule 9 to fill in fire-retardant flame retardant coating 3 and the clearance department of polyethylene insulating layer 2, improve high temperature resistant fire resistance, adopt the steel wire to strengthen the net layer 4 of weaving to improve tensile strength nature, adopt the heat preservation 5 of the cotton material of heat preservation bubble, improve the heat preservation, adopt mica tape high temperature resistant layer 6 to improve high temperature resistance, adopt the outer protective layer 7 of low smoke and zero halogen fire-retardant polyolefin material, wear resistance is strong, be equipped with resistance layer 8 between outer protective layer 7 and the mica tape high temperature resistant layer 6, the compression resistance is good, and do not influence the flexibility, this device is functional stronger, service life is longer.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Flexible fireproof cable, including electrically conductive core (1), its characterized in that, the quantity of electrically conductive core (1) is five, every the outside of electrically conductive core (1) all is equipped with the cover and is equipped with polyethylene insulation layer (2), five the outside cover of polyethylene insulation layer (2) is equipped with fire-retardant flame retardant coating (3), the outside cover of fire-retardant flame retardant coating (3) is equipped with the steel wire and strengthens compiling stratum reticulare (4), the outside cover that stratum reticulare (4) was compiled in the steel wire enhancement is equipped with heat preservation (5), the outside cover of heat preservation (5) is equipped with mica tape high temperature resistant layer (6), the outside cover of mica tape high temperature resistant layer (6) is equipped with outer protective layer (7), and is equipped with resist compression layer (8) between outer protective layer (7) and mica tape high temperature resistant layer (6).

2. Flexible fire protection cable according to claim 1, characterized in that said conductive core (1) is twisted from seven pure copper wires.

3. Flexible fire protection cable according to claim 1, characterized in that the space between the fire-retardant layer (3) and the insulating polyethylene layer (2) is filled with fire-retardant polyphenyl particles (9).

4. The flexible fireproof cable according to claim 1, wherein the flame-retardant layer (3) is made of magnesium hydroxide flame-retardant material.

5. The flexible fireproof cable according to claim 1, wherein the insulating layer (5) is made of an insulating foam material.

6. The flexible fireproof cable according to claim 1, wherein the outer protective layer (7) is made of a low smoke halogen-free flame retardant polyolefin material.

7. Flexible fire-resistant cable according to claim 1, characterised in that the pressure-resistant layer (8) is woven from elastic ribbon and that the pressure-resistant layer (8) is filled with a non-newtonian fluid material.