CN214752996U

CN214752996U - High-temperature-resistant polyvinyl chloride insulated flexible cable wire

Info

Publication number: CN214752996U
Application number: CN202121102866.5U
Authority: CN
Inventors: 黄良泽; 陈旭靖; 张信苹; 石丰富
Original assignee: Yunnan Dongjin Wire Cable Manufacture Co ltd
Current assignee: Yunnan Dongjin Cable Group Co.,Ltd.
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2021-11-16
Anticipated expiration: 2031-05-21

Abstract

The utility model relates to a high temperature resistant polyvinyl chloride insulated flexible cable wire, which comprises a wear-resistant jacket layer and a pressure-resistant layer, wherein the inner side of the wear-resistant jacket layer is provided with a protective layer, and the inner side of the protective layer is provided with an insulating layer arranged at the inner side of a flame-retardant layer; a copper core conductor is arranged on the inner side of the compression resistant layer, and a fire-resistant layer is arranged on the outer wall of the copper core conductor; and filling is arranged between the fire-resistant layer and the compression-resistant layer. The utility model is used for solve the relatively poor problem of current cable heat resistance and compressive property.

Description

High-temperature-resistant polyvinyl chloride insulated flexible cable wire

Technical Field

The utility model belongs to the technical field of the high reliability cable, concretely relates to high temperature resistant polyvinyl chloride insulated flexible cable electric wire.

Background

The cable is an electric energy or signal transmission device, and generally comprises several or several groups of conducting wires, and the cable comprises a power cable, a control cable, a compensation cable, a shielding cable, a high-temperature cable, a computer cable, a signal cable, a coaxial cable, a fire-resistant cable, a marine cable, a mining cable, an aluminum alloy cable and the like. They are composed of single or multi-strand wires and an insulating layer for connecting circuits, electric appliances, etc., and electric cables are widely used in various fields. In recent years, the fire caused by the damage of the cable is increasing, and the main reason is that the cable is easy to break after being subjected to high temperature and surface pressure because the heat resistance and the pressure resistance of the common cable are poor, thereby causing potential safety hazards.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric energy or signal transmission device solves the relatively poor problem of current cable heat resistance and compressive property.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a high-temperature-resistant polyvinyl chloride insulated flexible cable comprises a wear-resistant sleeve layer and a pressure-resistant layer, wherein a protective layer is arranged on the inner side of the wear-resistant sleeve layer, a flame-retardant layer is arranged on the inner side of the protective layer, and an insulating layer is arranged on the inner side of the flame-retardant layer;

the inner side of the insulating layer is provided with a compression-resistant layer, the compression-resistant layer comprises an outer skin layer, a compression-resistant body and an inner skin layer, the inner skin layer is connected with the outer skin layer through the compression-resistant body, the compression-resistant body is a first clamping groove and a second clamping groove which are distributed in an annular mode through fixing pieces, and a first fixing block is arranged in the middle of the first clamping groove;

a copper core conductor is arranged on the inner side of the compression resistant layer, and a fire-resistant layer is arranged on the outer wall of the copper core conductor; and filling is arranged between the fire-resistant layer and the compression-resistant layer.

Furthermore, the filling layer is in the middle stroke blocking block structure of the fire-resistant layers of the two copper core conductors.

Further, the flame-retardant layer is made of one of polyvinyl chloride and ethylene propylene rubber.

Furthermore, the first clamping groove and the second clamping groove are arranged in a reverse direction, and a second fixing block is arranged on the second clamping groove.

Furthermore, the outer cladding of flame retardant coating is provided with insulating cortex, and insulating cortex adopts different colours.

Furthermore, the diameter of the wear-resistant jacket layer is 25mm-50mm, and the diameter of the flame-retardant layer is 25mm-40 mm.

Further, the insulating layer outside is provided with separates the oxygen layer, and separates the oxygen layer and be the mineral substance layer.

Compared with the prior art, the utility model discloses one of following beneficial effect has at least:

1. whole cable adopts multilayer structure, and wherein, the triangular clamping groove structure that the annular that the resistance to compression layer adopted the stationary blade to constitute distributes, pressure that can effectual mortgage cable upper portion was exerted comes avoids the copper core conductor to receive the extrusion to cause and breaks, causes the potential safety hazard, can improve the whole structural stability of cable.

2. The design has independent flame retardant coating and insulating layer, can play insulating effect, and the flame retardant coating directly sets up in the outside of copper core conductor, can play thermal-insulated effect.

3. Be provided with the filling layer between flame retardant coating and resistance to compression layer, and form separation block structure between the filling layer, can play firm effect to a plurality of copper core conductors, prevent to contact each other after the pressurized.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is the schematic diagram of the structure of the compression-resistant layer of the present invention.

In the figure: the novel copper-clad plate comprises, by weight, 1-a copper core conductor, 2-a fire-resistant layer, 3-a filling layer, 4-a pressure-resistant layer, 5-an insulating layer, 6-a flame-retardant layer, 7-a protective layer, 8-a wear-resistant sleeve layer, 9-a fixing piece, 10-a first fixing block, 12-an outer skin layer, 13-an inner skin layer, 14-a first clamping groove, 15-a second clamping groove and 16-a second fixing block.

Detailed Description

As shown in fig. 1-2, in order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

A high-temperature-resistant polyvinyl chloride insulated flexible cable comprises a wear-resistant sleeve layer 8 and a compression-resistant layer 4, wherein a protective layer 7 is arranged on the inner side of the wear-resistant sleeve layer 8, a flame-retardant layer 6 is arranged on the inner side of the protective layer 7, and an insulating layer 5 is arranged on the inner side of the flame-retardant layer 6;

the inner side of the insulating layer 5 is provided with a pressure-resistant layer 4, the pressure-resistant layer 4 comprises an outer skin layer 12, a pressure-resistant body and an inner skin layer 13, the inner skin layer 13 is connected with the outer skin layer 12 through the pressure-resistant body, the pressure-resistant body is a first clamping groove 14 and a second clamping groove 15 which are distributed in an annular mode through fixing pieces 9, and a first fixing block 10 is arranged in the middle of the first clamping groove 14;

a copper core conductor 1 is arranged on the inner side of the pressure resistant layer 4, and a fire-resistant layer 2 is arranged on the outer wall of the copper core conductor 1; a filling layer 3 is arranged between the fire-resistant layer 2 and the compression-resistant layer 4; in the above scheme, whole cable adopts multilayer structure, and wherein, the triangular clamping groove structure that the annular that the resistance to compression layer adopted the stationary blade to constitute distributes, pressure that can effectual mortgage cable upper portion was exerted comes avoids the copper core conductor to receive the extrusion to cause and breaks, causes the potential safety hazard, can improve the whole structural stability of cable.

Example 2

The present embodiment is further described with respect to the filling layer 3 based on the prior embodiment 1, wherein the filling layer 3 has a structure of a stroke blocking block in the middle of the fire-resistant layers 2 of the two copper-core conductors 1; be provided with the filling layer between flame retardant coating and resistance to compression layer, and form separation block structure between the filling layer, can play firm effect to a plurality of copper core conductors, prevent to contact each other after the pressurized.

Example 3

In this embodiment, a flame retardant layer 6 is further described on the basis of the existing embodiment 1, and the material of the flame retardant layer 6 is one of polyvinyl chloride and ethylene propylene rubber; polyvinyl chloride is cheap, has good insulating property and good flame retardance, and is widely applied to common flame-retardant wires and cables.

Example 4

In this embodiment, a refractory layer 2 is further described on the basis of the existing embodiment 1, an insulating skin layer is coated outside the refractory layer 2, and the insulating skin layer is in different colors; adopt different colours can observe the degree of depth and the position of cutting when the cutting cable, be convenient for the cable cut off and be connected with other power supply spare.

Example 5

In this embodiment, the wear-resistant jacket layer 8 is further described on the basis of the existing embodiment 1, the diameter of the wear-resistant jacket layer 8 is 35mm, and the diameter of the flame-retardant layer 6 is 28 mm; an oxygen-isolating layer is arranged outside the insulating layer 5, and the oxygen-isolating layer is a mineral layer; the oxygen-isolating layer (mineral layer) is coated outside the insulating layer, so that the fireproof technology of the oxygen-isolating layer is formed, and the practicability of the cable can be improved.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. The utility model provides a high temperature resistant polyvinyl chloride insulated flexible cable electric wire, includes wear-resisting jacket layer (8) and compressive layer (4), its characterized in that: a protective layer (7) is arranged on the inner side of the wear-resistant sleeve layer (8), a flame-retardant layer (6) is arranged on the inner side of the protective layer (7), and an insulating layer (5) is arranged on the inner side of the flame-retardant layer (6);

the inner side of the insulating layer (5) is provided with a pressure-resistant layer (4), the pressure-resistant layer (4) comprises an outer skin layer (12), a pressure-resistant body and an inner skin layer (13), the inner skin layer (13) is connected with the outer skin layer (12) through the pressure-resistant body, the pressure-resistant body is a first clamping groove (14) and a second clamping groove (15) which are distributed in an annular mode through a fixing piece (9) and have a stroke, and a first fixing block (10) is arranged in the middle of the first clamping groove (14);

a copper core conductor (1) is arranged on the inner side of the pressure resistant layer (4), and a fire-resistant layer (2) is arranged on the outer wall of the copper core conductor (1); a filling layer (3) is arranged between the fire-resistant layer (2) and the pressure-resistant layer (4).

2. The high temperature resistant polyvinyl chloride insulated flexible cable wire of claim 1, wherein: the filling layer (3) is arranged in the middle of the fire-resistant layers (2) of the two copper core conductors (1) and has a stroke blocking block structure.

3. The high temperature resistant polyvinyl chloride insulated flexible cable wire of claim 1, wherein: the flame-retardant layer (6) is made of one of polyvinyl chloride and ethylene propylene rubber.

4. The high temperature resistant polyvinyl chloride insulated flexible cable wire of claim 1, wherein: the first clamping groove (14) and the second clamping groove (15) are arranged in a reverse direction, and a second fixing block (16) is arranged on the second clamping groove (15).

5. The high temperature resistant polyvinyl chloride insulated flexible cable wire of claim 1, wherein: the fire-resistant layer (2) is coated with an insulating skin layer, and the insulating skin layer is in different colors.

6. The high temperature resistant polyvinyl chloride insulated flexible cable wire of claim 1, wherein: the diameter of the wear-resistant jacket layer (8) is 25mm-50mm, and the diameter of the flame-retardant layer (6) is 25mm-40 mm.

7. The high temperature resistant polyvinyl chloride insulated flexible cable wire of claim 1, wherein: an oxygen isolation layer is arranged outside the insulating layer (5), and the oxygen isolation layer is a mineral layer.