CN218826242U

CN218826242U - Special composite flexible cable

Info

Publication number: CN218826242U
Application number: CN202222666443.7U
Authority: CN
Inventors: 卢英超; 叶明春; 刘建祥; 姜婷; 章琼焕
Original assignee: Anhui Chunjia Special Cable Co ltd
Current assignee: Anhui Chunjia Special Cable Co ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-04-07
Anticipated expiration: 2032-10-10

Abstract

The utility model discloses a special composite flexible cable, which comprises a cable core, a filling material wrapped on the surface of the cable core and a combined sheath layer extruded outside the filling material, wherein the cable core consists of four insulated wires, and each insulated wire consists of a copper flexible conductor and an insulating layer coaxially extruded outside the copper flexible conductor; the combined sheath layer comprises a wrapping tape wrapped on the outer layer of the filler, a rat and ant preventing inner sheath layer wrapped outside the wrapping tape and an outer sheath layer extruded outside the wrapping tape. The utility model discloses to there is seriously not enough in the aspect of performance such as cold-resistant, anti-oxidant among the prior art, the sheath becomes crackle easily when the bending, and the low scheduling problem of safety in utilization improves, the utility model has the advantages of electrical property is superior, and the ageing resistance, cold-resistant, acid and alkali-resistance etc. have better compliance, be difficult for appearing the crackle under the low temperature condition.

Description

Special composite flexible cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a special type composite flexible cable.

Background

The power cable is a cable for providing power transmission for large-scale mobile equipment and providing signal control for a set instrument.

The power cable is widely applied to power transmission of outdoor movement with rated voltage of 450/750V or below and signal transmission of various instruments and meters, the traditional power cable has serious defects in the aspects of cold resistance, oxidation resistance and the like, the cable insulation performance is poor in the environment of-40 ℃, the cable bending degree is increased, the cable is not suitable for installation and movement, cracks are easily generated when a sheath is brittle and bent, and the use safety is low.

To above technical problem, the utility model discloses a compound flexible cable of special type, the utility model has the advantages of electrical properties is superior, and the performance such as ageing resistance, cold-resistant, acid and alkali-resistance has better compliance, difficult crackle that produces under the low temperature condition.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, and provides a special composite flexible cable which has the advantages of excellent electrical performance, aging resistance, cold resistance, acid and alkali resistance and the like, good flexibility, difficult crack generation and the like under the low-temperature condition; to solve the problems set forth in the background art described above.

The utility model discloses a following technical scheme realizes: the utility model discloses a special composite flexible cable, which comprises a cable core, a filler wrapped on the surface of the cable core and a combined sheath layer extruded outside the filler, wherein the cable core consists of four insulated wires, and each insulated wire consists of a copper flexible conductor and an insulating layer coaxially extruded outside the copper flexible conductor; the combined sheath layer comprises a wrapping tape wrapped on the outer layer of the filler, a rat and ant prevention inner sheath layer wrapped outside the wrapping tape and an outer sheath layer extruded.

Furthermore, in order to have better insulating property, the insulating layer is made of a 105 ℃ butyronitrile polyvinyl chloride composite material.

Furthermore, in order to enable the cable to have a tear-resistant effect, the filling material adopts polypropylene tearing reticular filling ropes.

Furthermore, in order to have better protective performance, the outer sheath layer is made of a 105 ℃ cold-resistant composite elastomer material.

Furthermore, for making the cable have high strength, high temperature resistance can be good, ageing-resistant, ultraviolet resistance, elongation are high, stability and gas permeability are good, advantages such as corrosion-resistant around the band, it is the non-woven fabrics to wind the band.

Furthermore, in order to enable the cable to have anti-theft and anti-rat-bite performances, the rat-proof and ant-proof inner sheath layer is formed by winding and weaving metal wires and has the anti-theft and anti-rat-bite performances of enhancing the overall external force defense, tearing resistance and fracture resistance of the cable.

The utility model has the advantages of it is following:

(1) The filling material wrapped on the surface of the cable core adopts polypropylene to tear the netted filling rope, so that four insulated wires are tightly bound into one bundle, the cable can have the anti-tearing effect while resisting impact, the strength of the cable is enhanced, electric arcs are avoided, the breakage condition of a wire protective layer is eliminated, and meanwhile, the filling material can assist in bearing external pressure;

(2) The utility model discloses a copper soft conductor adopts 105 ℃ butyronitrile polyvinyl chloride combined material crowded package in the insulated wire, make the conductor receive better protection, mechanical physical properties has the synthesis, if applicable temperature range is wide, compressive resistance intensity is high, chemical resistance corrosivity is good, environmental stress crack resistance is excellent, and the inner wall is smooth, light in weight etc, 105 ℃ cold-resistant composite elastomer material has been adopted as the outer protection of whole cable, have better weather resistance when having above performance, delay the ageing of cable.

(2) The utility model discloses a protection against rodents ant inner sheath layer of combination restrictive coating adopts the wire winding to weave and makes, and the wire winding is woven and is made the combination restrictive coating have anti external living beings gnaw the bite, the theftproof cut, the whole defensive external force of reinforcing cable conductor and tear anti-fracture performance.

Drawings

FIG. 1 is a schematic cross-sectional structure of the present invention;

fig. 2 is an enlarged schematic structural diagram of a point a in fig. 1 according to the present invention.

In the figure: 1. a cable core; 2. a filler; 3. combining a sheath layer; 4. an insulated wire; 5. a copper flexible conductor; 6. an insulating layer; 7. wrapping a tape; 8. an inner protection layer for protection against rats and ants; 9. an outer jacket layer.

Detailed Description

The following embodiments of the present invention are described in detail, and the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following embodiments, and in the description of the present invention, words like "front", "back", "left", "right", etc. indicating directions or position relations are only for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

The utility model provides a technical scheme: a special composite flexible cable, as shown in fig. 1 and 2, comprises a cable core 1, a filler 2 wrapped on the surface of the cable core 1 and a combined sheath layer 3 extruded outside the filler 2, wherein the cable core 1 consists of four insulated wires 4, and each insulated wire 4 consists of a copper flexible conductor 5 and an insulating layer 6 coaxially extruded outside the copper flexible conductor 5; the combined sheath layer 3 comprises a wrapping tape 7 wrapped on the outer layer of the filler 2, a rat and ant preventing inner sheath layer 8 wrapped on the outer layer of the wrapping tape 7 and an outer sheath layer 9 extruded on the outer layer.

As shown in fig. 1 and 2, the insulating layer 6 is made of a 105 ℃ butyronitrile polyvinyl chloride composite material, and has good insulating property.

As shown in figures 1 and 2, the filling material 2 adopts polypropylene tearing net-shaped filling ropes, so that the cable has a tearing-resistant effect.

As shown in fig. 2, the outer sheath layer 9 is made of 105 ℃ cold-resistant composite elastomer material, and has better protective performance.

As shown in fig. 2, the wrapping tape 7 is a non-woven fabric, and the non-woven fabric has the advantages of high strength, good high temperature resistance, aging resistance, ultraviolet resistance, high elongation, good stability and air permeability, corrosion resistance and the like.

As shown in fig. 2, the rat and ant prevention inner sheath layer 8 is made of metal wires through winding and weaving, and has the functions of preventing burglary and slash, resisting rat bite, and enhancing the overall external force defense performance, tear resistance and fracture resistance of the cable.

The principle of the utility model is as follows: the filler 2 wrapped on the surface of the cable core 1 is a polypropylene tearing reticular filling rope, so that the four insulated wires 4 are tightly bundled into a bundle, the cable has a tear-resistant effect while resisting impact, the strength of the cable is enhanced, electric arcs are avoided, the breakage condition of a wire protective layer is eliminated, and meanwhile, the filler 2 can assist in bearing external pressure; the copper flexible conductor 5 in the insulated wire 4 is extruded by a 105 ℃ butyronitrile polyvinyl chloride composite material, so that the conductor is well protected, has comprehensive mechanical and physical properties, such as wide application temperature range, high pressure resistance, good chemical corrosion resistance, excellent environmental stress crack resistance, smooth inner wall, light weight and the like, adopts a 105 ℃ cold-resistant composite elastomer material as the outer layer protection of the whole cable, has good weather resistance while having the above properties, and delays the aging of the cable; the rat-proof and ant-proof inner sheath layer 8 of the combined sheath layer 3 is made of metal wires in a winding and weaving mode, and the metal wires in the winding and weaving mode enable the combined sheath layer 3 to have the functions of resisting the biting of external organisms, preventing the theft and the cutting, and enhancing the overall external force defense performance, the tear resistance and the fracture resistance of the cable.

Claims

1. A special composite flexible cable comprises a cable core, a filler coated on the surface of the cable core and a combined sheath layer extruded outside the filler, and is characterized in that the cable core consists of four insulated wires, and each insulated wire consists of a copper flexible conductor and an insulating layer coaxially extruded outside the copper flexible conductor; the combined sheath layer comprises a wrapping tape wrapped on the outer layer of the filler, a rat and ant preventing inner sheath layer wrapped outside the wrapping tape and an outer sheath layer extruded outside the wrapping tape.

2. A specialty composite flexible cable as claimed in claim 1, wherein said insulation layer is made of a 105 ℃ nitrile polyvinyl chloride composite.

3. A specialty composite flexible cable as claimed in claim 1, wherein said filler is a polypropylene ripcord mesh filler.

4. A specialty composite flexible cable as claimed in claim 1, wherein said outer jacket layer is a 105 ℃ cold resistant composite elastomer material.

5. A special composite flexible cable as claimed in claim 1, wherein said tape is a non-woven fabric.

6. A specialty composite flexible cable according to claim 1, wherein said rat and ant resistant inner jacket layer is formed from a wire wrap weave.