CN216849353U

CN216849353U - Low-voltage fireproof electric wire

Info

Publication number: CN216849353U
Application number: CN202123236660.4U
Authority: CN
Inventors: 赵喜泽; 段伟
Original assignee: Yuhengtong Guangzhou Technology Co ltd
Current assignee: Yuhengtong Guangzhou Technology Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-06-28
Anticipated expiration: 2031-12-22

Abstract

The utility model provides a low-voltage fireproof electric wire, which comprises a supporting shaft, wherein the supporting shaft is a rubber shaft, at least two wire cores are arranged around the supporting shaft, first protective skins wrap the wire cores, and the first protective skins are connected with the supporting shaft to form an integral structure; first protection skin and back shaft all wrap up in first supporting layer, first supporting layer is equipped with the insulating layer outward, be equipped with the third protection skin outside the insulating layer, the third protection skin is equipped with the second protection skin outward, be equipped with the enhancement layer between second protection skin and the third protection skin, the enhancement layer includes rubber parcel strip, bury three at least enhancement metal wires underground in the rubber parcel strip, the strong metal wire has elasticity, parallel arrangement between the enhancement metal wire, rubber parcel strip spiral parcel is in the third protection skin outside, one side bottom edge of rubber parcel strip is equipped with the card strip. The utility model discloses separately between each sinle silk, be equipped with the enhancement layer outside the thermal-insulated layer, the compressive strength of electric wire can effectively be strengthened to the enhancement layer.

Description

Low-voltage fireproof electric wire

Technical Field

The utility model belongs to the technical field of the cable, especially, indicate a low pressure fire prevention electric wire.

Background

The electric wire is vital in circuit transmission's effect, and current electric wire is most at core surface parcel rubber protection skin, but the rubber material can not prevent fires, and when the conflagration breaing out, traditional electric wire can not effectively prevent fires, and traditional single line can soften rapidly and catch fire under the toast of flame. To this end, we propose a low voltage fire-resistant wire.

SUMMERY OF THE UTILITY MODEL

For solving the deficiencies of the prior art, the utility model provides a low pressure fire prevention electric wire.

The technical scheme of the utility model is realized like this: a low-voltage fireproof electric wire comprises a supporting shaft, wherein the supporting shaft is a rubber shaft, at least two wire cores are arranged around the supporting shaft, first protective skins wrap the wire cores, and the first protective skins are connected with the supporting shaft to form an integral structure;

first protection skin and back shaft all wrap up in first supporting layer, are equipped with the insulating layer outside the first supporting layer, are equipped with the third protection skin outside the insulating layer.

Preferably, the third protection skin is equipped with the second protection skin outward, is equipped with the enhancement layer between second protection skin and the third protection skin, and the enhancement layer includes rubber parcel strip, has buried three at least enhancement metal silk underground in the rubber parcel strip, and the enhancement metal silk has elasticity, parallel arrangement between the enhancement metal silk, and rubber parcel strip spiral parcel is in the third protection skin outside.

Preferably, the edge of one side bottom of rubber parcel strip is equipped with the card strip, and one side top that the card strip was kept away from to rubber parcel strip is equipped with the draw-in groove, and the card strip card is in the draw-in groove.

Preferably, the surface of the first supporting layer is provided with a plurality of grid barrier strips which are arranged at equal intervals, and the heat insulation layer is positioned in the grid barrier strips.

Preferably, the heat insulation layer is one of heat insulation cotton, heat insulation plastic and aerogel.

Preferably, the second protective skin and the third protective skin are corrosion-resistant rubber layers.

Compared with the prior art, the utility model discloses separately between each sinle silk to the sinle silk is wrapped up in the insulating layer, is equipped with the enhancement layer outside the insulating layer, and the compressive strength of electric wire can effectively be strengthened to the enhancement layer.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of a low-voltage fireproof electric wire provided by the present invention.

Fig. 2 is a schematic view of the structure of the reinforced layer of the low-voltage fireproof electric wire of the present invention.

In the figure: the supporting shaft comprises a supporting shaft 1, a first supporting layer 2, a wire core 3, a grid baffle strip 4, a first protective skin 5, a second protective skin 6, a reinforcing layer 7, a third protective skin 8, a reinforcing metal wire 9, a clamping strip 10, a rubber wrapping strip 11, a clamping groove 12, a gap 13 and a heat insulation layer 14.

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 efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a low-voltage fireproof electric wire comprises a supporting shaft 1, wherein the supporting shaft 1 is a rubber shaft, at least two wire cores 3 are arranged around the supporting shaft 1, first protective skins 5 are wrapped outside the wire cores 3, the first protective skins 5 are rubber layers, and the first protective skins 5 are connected with the supporting shaft 1 to form an integral structure;

as shown in fig. 1, the first protective sheaths 5 are spaced apart by the support shaft 1 to increase the gaps 13 between the respective cores 3 and to separate the cores 3;

the first protection skin 5 and the support shaft 1 are both wrapped in the first support layer 2, the first support layer 2 is a rubber layer, a heat insulation layer 14 is arranged outside the first support layer 2, and a third protection skin 8 is arranged outside the heat insulation layer 14.

Further, as shown in fig. 1, a second protective skin 6 is arranged outside a third protective skin 8, a reinforcing layer 7 is arranged between the second protective skin 6 and the third protective skin 8, as shown in fig. 2, the reinforcing layer 7 comprises a rubber wrapping strip 11, at least three reinforcing metal wires 9 are embedded in the rubber wrapping strip 11, the reinforcing metal wires 9 have elasticity, the reinforcing metal wires 9 are arranged in parallel, the rubber wrapping strip 11 is spirally wrapped outside the third protective skin 8, the reinforcing metal wires 9 and the rubber wrapping strip 11 are wrapped outside a heat insulation layer 14 at the same time, an installation space is provided for installation of the heat insulation layer 14, and the heat insulation layer 14 can be supported.

Further, the edge of the bottom of one side of the rubber wrapping strip 11 is provided with a clamping strip 10, the top of one side of the rubber wrapping strip 11, which is far away from the clamping strip 10, is provided with a clamping groove 12, and the clamping strip 10 is clamped in the clamping groove 12. The connection between the rubber wrapping strips 11 is firmer.

Furthermore, the surface of the first support layer 2 is provided with a plurality of grid bars 4 which are arranged at equal intervals, and the heat insulation layer 14 is positioned in the grid bars 4.

Further, the thermal insulation layer 14 is one of thermal insulation cotton, thermal insulation plastic and aerogel.

Further, the second protective skin 6 and the third protective skin 8 are corrosion-resistant rubber layers.

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. A low-voltage fireproof electric wire comprises a supporting shaft (1) and is characterized in that the supporting shaft (1) is a rubber shaft, at least two wire cores (3) are arranged around the supporting shaft (1), first protective covers (5) wrap the wire cores (3), and the first protective covers (5) are connected with the supporting shaft (1) to form an integrated structure;

the first protection skin (5) and the support shaft (1) are wrapped in the first support layer (2), a heat insulation layer (14) is arranged outside the first support layer (2), and a third protection skin (8) is arranged outside the heat insulation layer (14).

2. A low-voltage fire-resistant electric wire according to claim 1, wherein the third protective skin (8) is externally provided with a second protective skin (6), a reinforcing layer (7) is arranged between the second protective skin (6) and the third protective skin (8), the reinforcing layer (7) comprises a rubber wrapping strip (11), at least three reinforcing metal wires (9) are embedded in the rubber wrapping strip (11), the reinforcing metal wires (9) have elasticity, the reinforcing metal wires (9) are arranged in parallel, and the rubber wrapping strip (11) is spirally wrapped outside the third protective skin (8).

3. The low-voltage fireproof electric wire according to claim 2, wherein a clamping strip (10) is arranged at the bottom edge of one side of the rubber wrapping strip (11), a clamping groove (12) is formed in the top of one side, far away from the clamping strip (10), of the rubber wrapping strip (11), and the clamping strip (10) is clamped in the clamping groove (12).

4. Low-voltage fire-resistant wire according to claim 1, characterised in that the surface of the first supporting layer (2) is provided with a plurality of grid bars (4) arranged at equal intervals, and the insulating layer (14) is located in the grid bars (4).

5. A low voltage fire-resistant electric wire according to claim 1, characterised in that the insulation layer (14) is one of insulation cotton, insulation plastic and aerogel.

6. Low-voltage fire-resistant wire according to claim 1, characterised in that the second (6) and third (8) protective skins are layers of corrosion-resistant rubber.