CN216053963U

CN216053963U - Anti-breaking cable

Info

Publication number: CN216053963U
Application number: CN202121782359.0U
Authority: CN
Inventors: 黄美芳
Original assignee: Zhejiang Li'an Cable Co ltd
Current assignee: Zhejiang Li'an Cable Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-03-15
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses an anti-break cable which comprises an insulating protection layer and a protection mechanism, wherein the protection mechanism is arranged in an inner cavity of the insulating protection layer, the protection mechanism comprises a protection layer and an anti-break mechanism, the outer wall of the protection layer is attached to the inner wall of the insulating protection layer, the anti-break mechanism comprises a plurality of through holes, the through holes are uniformly distributed on the protection layer at equal intervals, the protection layer comprises a rubber layer, a silica gel layer and a glass fiber layer, the rubber layer is arranged on the outer side of the silica gel layer, and the glass fiber layer is arranged on the inner side of the silica gel layer. When the cable is bent, the protective layer is bent at the through hole, the through hole deforms along with the protective layer, the ductility of the protective layer is improved through the through holes arranged on the protective layer, the stress in the protective layer is blocked, and the bending force can be offset to a certain extent in the deformation process by utilizing the elastic action of the rubber layer and the silica gel layer, so that the cable core in the cable core is protected.

Description

Anti-breaking cable

Technical Field

The utility model relates to the field of anti-break cables, in particular to an anti-break cable.

Background

The power cable is used for transmitting and distributing electric energy, is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and power transmission lines under river-crossing seawater, and is a cable product used for transmitting and distributing high-power electric energy in a trunk line of a power system, wherein the proportion of the cable in the power line is gradually increased.

The existing power cable is easy to bend due to the influence of dead weight, length and flexibility of the cable in the transportation and installation processes, and the internal wire core is easy to break due to the fact that the overall structure is compact, so that the normal use of the cable is influenced.

Disclosure of Invention

With new content

The utility model aims to provide an anti-break cable to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the anti-break cable comprises an insulating protective layer and a protection mechanism, wherein the protection mechanism is arranged in an inner cavity of the insulating protective layer;

the protective mechanism comprises a protective layer and an anti-folding mechanism, the outer wall of the protective layer is attached to the inner wall of the insulating protective layer, and the anti-folding mechanism is arranged on the protective layer;

the anti-folding mechanism comprises a plurality of through holes, the through holes are evenly distributed on the protective layer at equal intervals, the protective layer comprises a rubber layer, a silica gel layer and a glass fiber layer, the rubber layer is arranged on the outer side of the silica gel layer, and the glass fiber layer is arranged on the inner side of the silica gel layer.

Preferably, a metal corrugated pipe is arranged in the inner cavity of the protective layer, the outer wall of the metal corrugated pipe is attached to the inner wall of the protective layer, and a mica tape is arranged in the inner cavity of the metal corrugated pipe.

Preferably, a plurality of cable cores are arranged in the inner cavity of the mica tape, and insulating layers are fixedly sleeved on the cable cores.

Preferably, the insulating protective layer includes wearing layer, carbon fiber layer, flame retardant coating and thermal-insulated foam blanket, wearing layer, carbon fiber layer, flame retardant coating and thermal-insulated foam blanket are range upon range of setting in proper order.

Preferably, the heat insulation foam layer is arranged on the outer side of the protective layer, and the fire-proof layer is arranged on the outer side of the heat insulation foam layer.

Preferably, the carbon fiber layer is arranged on the outer side of the fire-proof layer, and the wear-resistant layer is arranged on the outer side of the carbon fiber layer.

The utility model has the technical effects and advantages that:

(1) according to the utility model, by utilizing the arrangement mode of matching the through hole, the rubber layer and the silica gel layer, when the cable is bent, the protective layer is bent at the through hole, the through hole is deformed along with the protective layer, the ductility of the protective layer is improved and the internal stress of the protective layer is blocked by virtue of the through holes arranged on the protective layer, and the elastic action of the rubber layer and the silica gel layer is utilized, so that the bending force can be offset to a certain extent in the deformation process, and the internal cable core is protected;

(2) the metal corrugated pipe is bent along with the cable by utilizing the arrangement mode of matching the metal corrugated pipe and the cable core, and the metal corrugated pipe has ductility and is not easy to break through the metal characteristic of the metal corrugated pipe, so that the internal cable core is protected.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic side sectional view of the insulating protective layer according to the present invention.

Fig. 3 is a schematic side sectional view of the metal bellows according to the present invention.

FIG. 4 is a schematic cross-sectional front view of a protective layer according to the present invention.

FIG. 5 is a schematic cross-sectional front view of the insulating protective layer according to the present invention.

In the figure: 1. an insulating protective layer; 2. a protection mechanism; 21. a protective layer; 22. an anti-folding mechanism; 221. a through hole; 222. a rubber layer; 223. a silica gel layer; 224. a glass fiber layer; 3. a metal bellows; 4. mica tapes; 5. a cable core; 6. an insulating layer; 7. a wear layer; 8. a carbon fiber layer; 9. a fire barrier layer; 10. a thermally insulating foam layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a breakage-proof cable shown in figures 1-5, which comprises an insulating protective layer 1 and a protective mechanism 2, wherein the protective mechanism 2 is arranged in an inner cavity of the insulating protective layer 1, the insulating protective layer 1 is arranged outside the cable and is used for protecting a cable core 5 inside the insulating protective layer 1, and the protective mechanism 2 is arranged outside the cable core 5 and is used for preventing the cable from being broken in the carrying and installing processes;

the protection mechanism 2 comprises a protection layer 21 and an anti-folding mechanism 22, the outer wall of the protection layer 21 is attached to the inner wall of the insulation protection layer 1, the protection layer 21 is arranged outside the cable core 5 to protect the cable core 5, the anti-folding mechanism 22 is arranged on the protection layer 21, and the anti-folding mechanism 22 is used for weakening the influence on the cable core 5 inside when the cable is bent and preventing the cable from being broken;

the anti-folding mechanism 22 comprises a plurality of through holes 221, the through holes 221 penetrate through the rubber layer 222, the silica gel layer 223 and the glass fiber layer 224 and are used for increasing the toughness of the protective layer 21, when the cable is bent, the stress in the protective layer 21 is blocked by the arrangement of the through holes 221, the bending strength of the protective layer 21 is improved, the through holes 221 are uniformly distributed on the protective layer 21 at equal intervals, the protective layer 21 comprises the rubber layer 222, the silica gel layer 223 and the glass fiber layer 224, the rubber layer 222 is arranged on the outer side of the silica gel layer 223, the glass fiber layer 224 is arranged on the inner side of the silica gel layer 223, the protective layer 21 is composed of the rubber layer 222, the silica gel layer 223 and the glass fiber layer 224, the rubber layer 222, the silica gel layer 223 and the glass fiber layer 224 are sequentially stacked, the rubber layer 222 and the silica gel layer 223 are deformed along with the cable by the elastic action of the rubber layer 222 and the silica gel layer 223, and the bending force can be offset to a certain degree in the deformation process, the internal cable is protected, the glass fiber layer 224 is in a net shape, the toughness of the protective layer 21 is enhanced by utilizing the good physical ductility of the glass fiber layer 224, when the cable is bent, the protective layer 21 is bent at the position of the through hole 221, the through hole 221 deforms along with the protective layer 21, the ductility of the protective layer 21 is improved through the through holes 221 arranged on the protective layer 21, the internal stress of the protective layer 21 is blocked, and the bending force can be offset to a certain degree in the deformation process by utilizing the elastic action of the rubber layer 222 and the silica gel layer 223, so that the internal cable core 5 is protected;

the inner cavity of the protective layer 21 is internally provided with a metal corrugated pipe 3, the outer wall of the metal corrugated pipe 3 is attached to the inner wall of the protective layer 21, the metal corrugated pipe 3 is fixedly sleeved in the inner cavity of the protective layer 21, the metal corrugated pipe 3 is bent along with a cable, and has ductility and is not easy to break through the metal characteristic of the metal corrugated pipe 3, an internal cable core 5 is protected, a mica tape 4 is arranged in the inner cavity of the metal corrugated pipe 3, the mica tape 4 is arranged outside the insulating layer 6 in a winding mode, and a plurality of cable cores 5 are wrapped to play roles of fire prevention and heat resistance;

a plurality of cable cores 5 are arranged in the inner cavity of the mica tape 4, the cable cores 5 are made of conductive metal materials and used for electrical connection, an insulating layer 6 is fixedly sleeved on the cable cores 5, and the cable cores 5 are arranged in the inner cavity of the insulating layer 6 to ensure the insulation protection of the cable cores 5;

insulating protective layer 1 includes wearing layer 7, carbon fiber layer 8, flame retardant coating 9 and thermal-insulated foam blanket 10, wearing layer 7, carbon fiber layer 8, flame retardant coating 9 and thermal-insulated foam blanket 10 are range upon range of setting in proper order, thermal-insulated foam blanket 10 sets up the outside at inoxidizing coating 21, flame retardant coating 9 sets up the outside at thermal-insulated foam blanket 10, carbon fiber blanket 8 sets up the outside at flame retardant coating 9, wearing layer 7 sets up the outside at carbon fiber layer 8, wearing layer 7 sets up the outside at insulating protective layer 1, play wear-resisting effect, reduce the wearing and tearing of cable crust, utilize 8 reinforcing insulating protective layer 1's of carbon fiber layer toughness, improve its intensity of bending, flame retardant coating 9 and thermal-insulated foam blanket 10 play the thermal-insulated effect of fire prevention, prevent that the conflagration from causing the destruction to inside cable core 5.

The working principle of the utility model is as follows: when the cable takes place to buckle, inoxidizing coating 21 buckles in through-hole 221 position, deformation takes place along with inoxidizing coating 21 for through-hole 221, a plurality of through-holes 221 through setting up on inoxidizing coating 21, improve the ductility of inoxidizing coating 21, block the inside stress of inoxidizing coating 21, and utilize the elastic action of rubber layer 222 and silica gel layer 223, make the in-process of deformation can carry out offsetting in certain degree with the bending force, protect inside cable core 5, corrugated metal pipe 3 buckles along with the cable simultaneously, through corrugated metal pipe 3's metallic characteristic, make it have the ductility, difficult rupture, protect inside cable core 5.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The anti-break cable comprises an insulating protective layer (1) and a protection mechanism (2), and is characterized in that the protection mechanism (2) is arranged in an inner cavity of the insulating protective layer (1);

the protective mechanism (2) comprises a protective layer (21) and an anti-folding mechanism (22), the outer wall of the protective layer (21) is attached to the inner wall of the insulating protective layer (1), and the anti-folding mechanism (22) is arranged on the protective layer (21);

prevent rolling over mechanism (22) and include a plurality of through-holes (221), it is a plurality of through-hole (221) equidistance is evenly spread all over and is seted up on inoxidizing coating (21), inoxidizing coating (21) include rubber layer (222), silica gel layer (223) and glass fiber layer (224), rubber layer (222) set up the outside at silica gel layer (223), glass fiber layer (224) set up the inboard at silica gel layer (223), be provided with corrugated metal pipe (3) in the inner chamber of inoxidizing coating (21), the outer wall of corrugated metal pipe (3) is laminated with the inner wall of inoxidizing coating (21) mutually, be provided with mica tape (4) in the inner chamber of corrugated metal pipe (3).

2. A break-proof cable according to claim 1, wherein a plurality of cable cores (5) are arranged in the inner cavity of the mica tape (4), and an insulating layer (6) is fixedly sleeved on the cable cores (5).

3. A break-proof cable according to claim 1, wherein the insulating protective layer (1) comprises a wear-resistant layer (7), a carbon fiber layer (8), a fire-resistant layer (9) and a heat-insulating foam layer (10), and the wear-resistant layer (7), the carbon fiber layer (8), the fire-resistant layer (9) and the heat-insulating foam layer (10) are sequentially stacked.

4. A break-resistant cable according to claim 3, characterized in that the insulating foam layer (10) is arranged on the outside of the protective layer (21) and the fire-resistant layer (9) is arranged on the outside of the insulating foam layer (10).

5. A break-resistant cable according to claim 3, characterized in that the carbon fibre layer (8) is arranged on the outside of the fire-resistant layer (9) and the wear-resistant layer (7) is arranged on the outside of the carbon fibre layer (8).