CN219202787U

CN219202787U - High-safety polytetrafluoroethylene insulated wire and cable

Info

Publication number: CN219202787U
Application number: CN202222833488.9U
Authority: CN
Inventors: 周伟华; 王顺凯; 杨洁; 李明芬; 冯珂伟; 季乙
Original assignee: Jiangyin Haosheng Electrical Cable Manufacturing Co ltd
Current assignee: Jiangyin Haosheng Electrical Cable Manufacturing Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-06-16
Anticipated expiration: 2032-10-26

Abstract

The utility model provides a high-safety polytetrafluoroethylene insulated wire and cable, which relates to the field of cables and comprises a rubber strip, wherein the outer side of the rubber strip is connected with a plurality of partition plates distributed in an annular array, a wire core is arranged between two adjacent partition plates, the outer side of the wire core is sleeved with an inner sheath, the outer side of the partition plates is fixedly provided with an insulating convex plate, the outer side of the insulating convex plate is provided with a plurality of equidistant distributed notches, the notches on two adjacent insulating convex plates are distributed in a staggered manner, the outer side of the insulating convex plate is wound with a fireproof rubber strip, and the outer side of the fireproof rubber strip is sleeved with a protective layer. According to the utility model, the separation plate and the insulation convex plate are arranged on the outer side of the rubber strip, so that a plurality of wire cores are separated by the separation plate and the insulation convex plate, a good insulation effect is achieved, meanwhile, the insulation convex plate is provided with the notch, and the fireproof rubber strip is wound in the notch on the insulation convex plate, so that the plurality of wire cores can be tightly attached to the rubber strip, and the installation is stable.

Description

High-safety polytetrafluoroethylene insulated wire and cable

Technical Field

The utility model relates to the technical field of cables, in particular to a high-safety polytetrafluoroethylene insulated wire and cable.

Background

The cable is typically a rope-like cable of twisted wires of several or groups of wires, each group being insulated from each other and often twisted around a central wire and covered with a highly insulating coating. The cable has an inner energized, outer insulated feature. With the development of national economy, the demand of electric power is higher and higher, and the electric wire and cable are used as one of the transmission carriers of electric power, so that the electric wire and cable are applied more and more, and the coverage range is wider and wider. At present, some electric wires and cables are in a complex terrain environment and often need to be twisted according to the terrain or under the action of external force, but when the existing electric wires and cables are twisted, the service life or transmission performance of the existing electric wires and cables can be affected to a certain extent.

The utility model patent with publication number of CN208622466U discloses a polyvinyl chloride insulated wire and cable, which comprises an outer armor layer, an outer sheath layer, an inner armor layer, an inner sheath layer, a shielding layer, an insulating layer, a cable core wire, a separation sheet and a filling layer; the outer sheath layer is attached to the outer surface of the outer armor layer; the isolating sheet is in a sheet shape with a wavy section and is axially arranged in the outer armor layer; the inner sheath layer wraps the outer surface of the inner armor layer and is arranged between the isolating sheet and the inner surface of the outer armor layer. On the basis of ensuring the insulativity and the shielding property, the spacer is added, so that the utility model not only can ensure that the cable has excellent anti-twisting effect, but also can ensure that two areas formed by the spacer in a separated way can be used for penetrating cable cores of different purposes.

Above-mentioned cable structure is provided with the spacer, can effectually improve the influence that wire and cable received when the distortion, but foretell cable structure abrasion resistance is relatively poor, and wire and cable need often drag in the process of placing, and the poor cable of abrasion resistance can influence its life, and above-mentioned cable structure is insulating and flame retardant efficiency is general moreover.

Disclosure of Invention

In order to solve the above problems, the present utility model proposes a high-safety polytetrafluoroethylene insulated wire and cable to solve the above problems more precisely.

The utility model is realized by the following technical scheme:

the utility model provides a high-safety polytetrafluoroethylene insulated wire and cable, which comprises a rubber strip, wherein the outer side of the rubber strip is connected with a plurality of partition plates distributed in an annular array, a wire core is arranged between two adjacent partition plates, the outer side of the wire core is sleeved with an inner sheath, the outer side of each partition plate is fixedly provided with an insulating convex plate, the outer sides of the insulating convex plates are provided with a plurality of equidistant notches, the notches on two adjacent insulating convex plates are distributed in a staggered manner, the outer sides of the insulating convex plates are wound with fireproof rubber strips, the fireproof rubber strips are positioned in the notches, and the outer sides of the fireproof rubber strips are sleeved with protective layers.

Preferably, the separation plate and the insulation convex plate are integrally formed, and the separation plate and the insulation convex plate are made of polytetrafluoroethylene.

Preferably, the inner sheath is made of high temperature resistant silicon rubber, and an electromagnetic shielding layer is inlaid in the inner sheath.

Preferably, the protective layer is made of abrasion-resistant rubber.

Preferably, empty slots are formed in the insulating convex plate, a plurality of empty slots are formed in the insulating convex plate, and the empty slots and the notches are distributed in a staggered mode.

Preferably, the interior of the empty groove is filled with a flame retardant filler made of aluminum hydroxide powder or magnesium hydroxide powder.

The utility model has the technical effects and advantages that:

according to the cable, the separation plate and the insulation convex plate are arranged on the outer side of the rubber strip, the separation plate and the insulation convex plate separate the plurality of cable cores, so that a good insulation effect is achieved, meanwhile, the insulation convex plate is provided with the notch, the fireproof rubber strip is wound in the notch on the insulation convex plate, the plurality of cable cores can be tightly attached to the rubber strip, the installation is stable, the flame retardant performance of the cable is improved due to the flame retardant filler filled in the fireproof rubber strip and the insulation convex plate, and the protective layer is made of wear-resistant materials, so that the wear resistance of the cable is improved.

Drawings

FIG. 1 is a schematic cross-sectional view of the overall structure of the present utility model.

Fig. 2 is a schematic cross-sectional view of an insulating convex plate structure according to the present utility model.

FIG. 3 is a schematic view of the structure of the flame retardant filler of the present utility model.

In the figure: 1. a rubber strip; 2. a partition plate; 3. a wire core; 4. an inner sheath; 5. an insulating convex plate; 6. a notch; 7. a fire-resistant rubber strip; 8. a protective layer; 9. a hollow groove; 10. and (3) flame retardant filler.

Detailed Description

In order to more clearly and completely describe the technical scheme of the utility model, the utility model is further described below with reference to the accompanying drawings.

Referring to fig. 1-3, the utility model provides a high-safety polytetrafluoroethylene insulated wire and cable, which comprises a rubber strip 1, wherein the outer side of the rubber strip 1 is connected with a plurality of annular array-distributed partition boards 2, a wire core 3 is arranged between two adjacent partition boards 2, an inner sheath 4 is sleeved on the outer side of the wire core 3, the inner sheath 4 is made of high-temperature resistant silicon rubber, an electromagnetic shielding layer is inlaid in the inner sheath 4, the inner sheath 4 plays a good protective role on the wire core, an insulating convex board 5 is fixed on the outer side of the partition board 2, the partition boards 2 and the insulating convex board 5 are integrally formed, the partition boards 2 and the insulating convex board 5 are made of polytetrafluoroethylene, the partition boards 2 and the insulating convex board 5 can separate the adjacent two wire cores 3, a good insulating effect is achieved, a plurality of equidistant-distributed notch 6 are formed in the outer side of the insulating convex board 5, a fireproof rubber strip 7 is wound on the outer side of the insulating convex board 5, the fireproof rubber strip 7 is positioned in the notch 6, the fireproof rubber strip 7 is arranged on the outer side of the insulating convex board 5, the fireproof rubber strip 7 is sleeved on the outer side of the fireproof rubber strip 8, and the fireproof protection layer is made of the fireproof rubber strip 8.

Specifically, the hollow grooves 9 are formed in the insulating convex plate 5, the hollow grooves 9 are arranged in a plurality, the hollow grooves 9 and the notch 6 are distributed in a staggered mode, flame-retardant filler 10 is filled in the hollow grooves 9, the flame-retardant filler 10 is made of aluminum hydroxide powder or magnesium hydroxide powder, and the flame-retardant performance of the cable is improved due to the arrangement of the flame-retardant filler 10.

According to the utility model, the separation plate 2 and the insulation convex plate 5 are arranged on the outer side of the rubber strip 1, the separation plate 2 and the insulation convex plate 5 separate the plurality of wire cores 3, so that a good insulation effect is achieved, meanwhile, the insulation convex plate 5 is provided with the notch 6, and the fireproof rubber strip 7 is wound in the notch 6 on the insulation convex plate 5, so that the plurality of wire cores 3 can be tightly attached to the rubber strip 1, the installation is stable, the fireproof rubber strip 7 and the flame retardant filler 10 filled in the insulation convex plate 5 improve the flame retardant property of the cable, and the protective layer 8 is made of wear-resistant materials, so that the wear resistance of the cable is improved.

Of course, the present utility model can be implemented in various other embodiments, and based on this embodiment, those skilled in the art can obtain other embodiments without any inventive effort, which fall within the scope of the present utility model.

Claims

1. High safe polytetrafluoroethylene insulated wire cable, including rubber strip (1), its characterized in that: the utility model discloses a fire-proof rubber strip, including rubber strip (1), insulating flange (5), a plurality of equidistant notch (6) that distribute, notch (6) dislocation distribution on two adjacent insulating flange (5), fire-proof rubber strip (7) have been twined in the outside of insulating flange (5), fire-proof rubber strip (7) are located notch (6), protective layer (8) have been cup jointed in the outside of fire-proof rubber strip (7).

2. The high-safety polytetrafluoroethylene insulated wire and cable according to claim 1, wherein the separation plate (2) and the insulation convex plate (5) are integrally formed, and the separation plate (2) and the insulation convex plate (5) are made of polytetrafluoroethylene.

3. The high-safety polytetrafluoroethylene insulated wire and cable according to claim 1, wherein the inner sheath (4) is made of high-temperature resistant silicone rubber, and an electromagnetic shielding layer is inlaid inside the inner sheath (4).

4. A highly safe polytetrafluoroethylene insulated wire and cable according to claim 3, characterized in that the protective layer (8) is made of wear resistant rubber.

5. The high-safety polytetrafluoroethylene insulated wire and cable according to claim 1, wherein the insulation convex plate (5) is internally provided with a plurality of empty slots (9), and the empty slots (9) and the notch (6) are distributed in a dislocation manner.

6. The high-safety polytetrafluoroethylene insulated wire and cable according to claim 5, characterized in that the interior of the empty groove (9) is filled with a flame-retardant filler (10), the flame-retardant filler (10) being made of aluminum hydroxide powder or magnesium hydroxide powder.