CN-122025244-A - Novel pressure-bearing power cable

CN122025244ACN 122025244 ACN122025244 ACN 122025244ACN-122025244-A

Abstract

The application belongs to the technical field of cable manufacture, and particularly relates to a novel pressure-bearing power cable which comprises a wire, an insulating material, a filler and an outer sheath, wherein the wire is of a molded line structure made of annealed soft copper wires, the wire is wrapped by the insulating material, a plurality of wires wrapped by the insulating material are gathered into a whole, the whole is wrapped in the inner sheath, a metal protection layer is wrapped on the outer circumferential surface of the inner sheath, the metal protection layer is wrapped by the outer sheath, a gap formed between the inner wall of the inner sheath and the wire wrapped by the insulating material is filled by the filler, the cross section of the outer sheath is arched, and the wire, the insulating material and the filler are all positioned in the middle of the arch, so that the power cable can bear materials such as vehicles and the like through the surface by leaning on a special structure of the power cable, and meanwhile has the characteristics of water resistance and difficult fracture.

Inventors

XIAO WEI
XIAO YUXIN
HAO GAOYU
GAO XIRAN
Luan Wenzhe
YANG JIANG
YANG WENYI

Assignees

通鼎互联信息股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260410

Claims (7)

1. The utility model provides a novel pressure-bearing power cable, its characterized in that, including wire (1), insulating material (3), filler, oversheath (9), wire (1) is the molded line structure of adopting annealed soft copper wire to make, wire (1) are wrapped up with insulating material (3), and a plurality of wires (1) of being wrapped up by insulating material (3) gather into a whole, and this whole is wrapped up in inner sheath (7), wrap up metal protection layer on the outer periphery of inner sheath (7), metal protection layer is wrapped up with oversheath (9) outside, the clearance that forms between the inner wall of inner sheath (7) and wire (1) of being wrapped up by insulating material (3) is filled with the filler, the cross section of oversheath (9) is the arch, wire (1), insulating material (3), filler all are located the middle part of arch.
2. The novel pressure-bearing power cable according to claim 1, wherein a plurality of metal armors (8) made of thin steel wires are arranged outside the metal protection layer in the outer sheath (9).
3. The novel pressure-bearing power cable as claimed in claim 1, wherein the insulating material (3) is made of a soft polyvinyl chloride material.
4. The novel pressure-bearing power cable as claimed in claim 1, wherein the filler is a non-hygroscopic polypropylene filler film (4).
5. The novel pressure-bearing power cable according to claim 4, wherein after the lead wire wrapped by the insulating material (3) is wrapped by the non-hygroscopic polypropylene filling film (4), a layer of non-woven fabric (5) is wrapped outside the non-hygroscopic polypropylene filling film (4).
6. The novel pressure-bearing power cable according to claim 1, wherein the inner sheath (7) is made of high-density polyethylene.
7. The novel pressure-bearing power cable according to claim 4, wherein the outer sheath (9) is extruded from medium-density polyethylene.

Description

Novel pressure-bearing power cable Technical Field The application belongs to the technical field of cable manufacturing, and particularly relates to a novel pressure-bearing power cable. Background The conventional power cable is easily damaged in the field due to construction, crossing various road intersections, vehicles and other materials passing through the surface thereof, and in a severe environment, the inner core is easily broken due to insufficient compactness, and water is permeated, so that it is required to design a power cable capable of withstanding pressure. Disclosure of Invention The application aims at overcoming the defects of the prior art, adopts a mode of arranging a wire, an insulating material, a filler and an outer sheath in the outer sheath with an arched cross section, designs a novel pressure-bearing power cable, can bear materials such as vehicles and the like on the surface of the power cable by leaning on a special structure of the power cable, and has the characteristics of water resistance and difficult fracture. In order to achieve the above purpose, the present application adopts the following technical scheme: The utility model provides a novel pressure-bearing power cable, includes wire, insulating material, filler, oversheath, the wire is the molded line structure of adopting annealed soft copper wire to make, the wire is wrapped up with insulating material, and a plurality of wires that are wrapped up by insulating material gather into a whole, and this whole is wrapped up in the oversheath, parcel metal protection layer on the outer periphery of oversheath, the clearance that forms between the inner wall of inner sheath and the wire wrapped up by insulating material is filled with the filler, the cross section of oversheath is the arch, wire, insulating material, filler all are located the middle part of arch. Preferably, a plurality of metal armors made of thin steel wires are arranged outside the metal protection layer in the outer sheath. Preferably, the insulating material is made of soft polyvinyl chloride material. Preferably, the filler is a non-hygroscopic polypropylene filler film. Preferably, after the wire wrapped with the insulating material is wrapped with the non-hygroscopic polypropylene filling film, a layer of non-woven fabric is wrapped outside the non-hygroscopic polypropylene filling film. Preferably, the inner sheath is made of high-density polyethylene. Preferably, the outer sheath is extruded from medium density polyethylene. The beneficial effects of the application are as follows: the application designs a novel pressure-bearing power cable by arranging the wires, the insulating materials, the fillers and the outer sheath in the outer sheath with the arc-shaped cross section, so that the power cable can bear materials such as vehicles and the like to pass through the surface by leaning on a special structure of the power cable, and has the characteristics of water resistance and difficult fracture. Drawings FIG. 1 is a schematic cross-sectional view of the present application; Fig. 2 is an enlarged view at a in fig. 1. Wherein, 1 part of the wire, 2 parts of the metal wire, 3 parts of the insulating layer, 4 parts of the non-hygroscopic polypropylene filling film, 5 parts of the non-woven fabric, 6 parts of the polyester tape, 7 parts of the inner sheath, 8 parts of the metal armor, 9 parts of the outer sheath and 10 parts of the bearing area. Detailed Description As shown in fig. 1-2, a novel voltage-bearing power cable comprises a wire 1, an insulating material 3, a filler and an outer sheath 9, wherein the wire 1 is of a molded line structure made of annealed soft copper wires, the wire 1 is wrapped by the insulating material 3, a plurality of wires 1 wrapped by the insulating material 3 are gathered into a whole, the whole is wrapped in an inner sheath 7, a metal protection layer is wrapped on the outer circumferential surface of the inner sheath 7, the metal protection layer is wrapped by the outer sheath 9, a gap formed between the inner wall of the inner sheath 7 and the wire 1 wrapped by the insulating material 3 is filled by the filler, the cross section of the outer sheath 9 is arched, and the wire 1, the insulating material 3 and the filler are all positioned in the middle of the arch. In the embodiment, after the wire 1 is made into a molded line structure by using annealed soft copper wires, the conductor can be guaranteed to be completely twisted, after the wire is filled by using a filler, the whole structure of the cable can be guaranteed to be firm, and the arc-shaped design ensures that one side of an arc-shaped plane contacts the ground and then the arc-shaped side of the arc-shaped plane faces away from the ground when being pressed, so that the cable is buffered. Unlike conventional cylindrical designs, conventional cylindrical designs are easily flattened due to the line contact when contacting the ground. The cable is