CN215730950U

CN215730950U - Cold-resistant long-life flame retarded cable

Info

Publication number: CN215730950U
Application number: CN202121787529.4U
Authority: CN
Inventors: 李立国
Original assignee: Hebei Jinqiao Cable Co ltd
Current assignee: Dong Qingzhang
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-02-01
Anticipated expiration: 2031-08-03

Abstract

The utility model discloses a cold-resistant long-life flame-retardant cable, which comprises a sheath, wherein an inner layer is arranged in the sheath, a rubber strip is arranged at the central position in the inner layer, a rubber frame is fixedly connected between the inner layer and the rubber strip at equal intervals, a heat-conducting silica gel sheet is fixedly connected with one end of the rubber frame, a carbon fiber layer is filled in the rubber frame, a conductor is arranged in the carbon fiber layer, and an insulating sleeve is sleeved outside the conductor. The safety performance of the cable is guaranteed.

Description

Cold-resistant long-life flame retarded cable

Technical Field

The utility model relates to the technical field of cables, in particular to a cold-resistant and long-life flame-retardant cable.

Background

The main body of the power cable is a built-in conductor, an insulating layer and a sheath layer are added on the conductor, the power cable with the insulating protection structure is convenient for safe electricity utilization, and the power cable is erected in the open air under normal conditions;

however, the existing cable has poor heat conduction and flame retardant properties, when a fire occurs, the fire easily spreads, so that the cable with a large surface is damaged, the resource waste is caused, meanwhile, the elasticity and toughness of the cable are poor, and the cable cannot recover to the original shape after being bent, so that the power transmission is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cold-resistant long-life flame-retardant cable, which can effectively solve the problems that in the background art, when a fire occurs, the fire is easy to spread, the cable on the large surface is damaged, resources are wasted, meanwhile, the elasticity and toughness of the cable are poor, the cable cannot recover to the original shape after being bent, and the transmission of electric power is influenced.

In order to achieve the purpose, the utility model provides the following technical scheme: the cold-resistant long-life flame-retardant cable comprises a sheath, wherein an inner layer is arranged inside the sheath, a rubber strip is arranged at the central position inside the inner layer, a rubber frame is fixedly connected between the inner layer and the rubber strip at equal intervals, a heat-conducting silica gel sheet is fixedly connected to one end of the rubber frame, a carbon fiber layer is filled inside the rubber frame, a conductor is arranged inside the carbon fiber layer, an insulating sleeve is sleeved outside the conductor, and a flame-retardant layer is sleeved outside the insulating sleeve;

the heat-insulation rubber frame is characterized in that a cavity is formed between the rubber frames, heat-insulation rock wool is filled in the cavity, elastic rubber strips are arranged on the outer side of the inner layer at equal intervals, a thermoplastic elastic sleeve is sleeved on the outer side of each elastic rubber strip, an armor shell is sleeved on the outer side of each thermoplastic elastic sleeve, reinforcing ribs are fixedly connected between the sheath and the armor shell at equal intervals, a heat-insulation layer is filled between the reinforcing ribs, and the heat-insulation layer comprises glass fiber and polytetrafluoroethylene.

Preferably, the outer side of the sheath is coated with an anticorrosive material, the inner layer is filled with graphite, and one end of the heat-conducting silica gel sheet is attached to the inner wall of the inner layer.

Preferably, the insulating sleeve is formed by mixing epoxy resin and polyimide, and the inside of the flame-retardant layer is filled with aluminum silicate fibers.

Preferably, the number of the rubber frames and the number of the cavities are five respectively, and the elastic rubber strips are arranged in a hollow mode.

Preferably, one side of the elastic rubber strip is attached to the inner wall of the thermoplastic elastic sleeve, and the other side of the elastic rubber strip is attached to the outer side of the inner layer.

Preferably, the reinforcing ribs are arranged in a triangular shape, and the heat-insulating layer is formed by filling glass fibers and polytetrafluoroethylene in a staggered mode.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has scientific and reasonable structure and safe and convenient use:

1. be provided with the sheath, the inlayer, the rubber strip, the rubber frame, the heat conduction silica gel piece, the fibrous layer, the conductor, insulating cover and fire-retardant layer, carry out double-deck protection to the conductor through sheath and inlayer, avoid the conductor impaired, the life of cable has been improved, simultaneously through the inside epoxy of insulating cover and polyimide mix the effect that has improved insulation, avoid appearing the phenomenon of electric leakage, the security performance of cable has been guaranteed, and catch fire through fire-retardant layer when the conductor catches fire, prevent the intensity of a fire to stretch, the fire behavior of cable has been improved, the loss is reduced.

2. Be provided with the cavity, thermal-insulated rock wool, the elasticity adhesive tape, thermoplastic elastic sleeve and armor, separate the rubber frame through the cavity, and cooperate through heat conduction silica gel piece and carbon fiber layer, with heat transfer to the inlayer on, graphite through inlayer inside dispels the heat, thereby the radiating effect of cable has been increased, in addition through the elasticity adhesive tape, thermoplastic elastic sleeve and armor's cooperation, the elasticity and the toughness of cable have been improved, when guaranteeing cable bending performance, increase the toughness of cable, make things convenient for the cable resilience to recover, avoid the cable deformation to appear, influence the use.

3. Be provided with strengthening rib, heat preservation, glass fiber and polytetrafluoroethylene, through the effect of strengthening rib, improve the intensity of cable to through the inside glass fiber and the polytetrafluoroethylene of heat preservation, improve the wear resistance and the thermal insulation performance of sheath, avoid the use of external chilly weather influence cable.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the installation structure of the rubber strip of the present invention;

FIG. 3 is a schematic structural view of the area A in FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the internal structure of the insulation of the present invention;

reference numbers in the figures: 1. a sheath; 2. an inner layer; 3. a rubber strip; 4. a rubber frame; 5. a heat-conducting silica gel sheet; 6. a carbon fiber layer; 7. a conductor; 8. an insulating sleeve; 9. a flame retardant layer; 10. a cavity; 11. heat-insulating rock wool; 12. an elastic rubber strip; 13. a thermoplastic elastomeric sleeve; 14. an armor shell; 15. reinforcing ribs; 16. a heat-insulating layer; 17. glass fibers; 18. polytetrafluoroethylene.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in figures 1-4, the utility model provides a technical scheme, a cold-resistant long-life flame-retardant cable, which comprises a sheath 1, an inner layer 2 is arranged in the sheath 1, a rubber strip 3 is arranged at the central position in the inner layer 2, a rubber frame 4 is fixedly connected between the inner layer 2 and the rubber strip 3 at equal intervals, one end of the rubber frame 4 is fixedly connected with a heat-conducting silicon rubber sheet 5, in order to improve the corrosion resistance of the sheath 1, the outer side of the sheath 1 is coated with an anticorrosive material, the inner layer 2 is filled with graphite, one end of a heat-conducting silica gel sheet 5 is attached to the inner wall of the inner layer 2, the inner part of a rubber frame 4 is filled with a carbon fiber layer 6, a conductor 7 is arranged in the carbon fiber layer 6, the outer side of the conductor 7 is sleeved with an insulating sleeve 8, the outer side of the insulating sleeve 8 is sleeved with a flame-retardant layer 9, in order to improve the insulation effect, the insulation sleeve 8 is formed by mixing epoxy resin and polyimide, and the inside of the flame-retardant layer 9 is filled with aluminum silicate fibers;

a cavity 10 is arranged between the rubber frames 4, heat insulation rock wool 11 is filled in the cavity 10, elastic rubber strips 12 are arranged on the outer side of the inner layer 2 at equal intervals, the heat dissipation effect is improved, five rubber frames 4 and five cavities 10 are respectively arranged, the elastic rubber strips 12 are arranged in a hollow manner, a thermoplastic elastic sleeve 13 is sleeved on the outer side of each elastic rubber strip 12, an armor shell 14 is sleeved on the outer side of each thermoplastic elastic sleeve 13, in order to improve the toughness of the cable, one side of an elastic rubber strip 12 is attached to the inner wall of a thermoplastic elastic sleeve 13, the other side of the elastic rubber strip 12 is attached to the outer side of an inner layer 2, reinforcing ribs 15 are fixedly connected between a sheath 1 and an armor shell 14 at equal intervals, a heat-insulating layer 16 is filled between the reinforcing ribs 15, the heat-insulating layer 16 comprises glass fibers 17 and polytetrafluoroethylene 18, in order to improve the strength of the sheath 1, the reinforcing ribs 15 are arranged in a triangular shape, and the heat-insulating layer 16 is formed by filling glass fibers 17 and polytetrafluoroethylene 18 in a staggered mode.

The working principle and the using process of the utility model are as follows: firstly, the conductor 7 is protected in a double-layer mode through the sheath 1 and the inner layer 2, the conductor 7 is prevented from being damaged, the service life of the cable is prolonged, meanwhile, the insulation effect is improved through the mixing of epoxy resin and polyimide in the insulation sleeve 8, the phenomenon of electric leakage is avoided, the safety performance of the cable is guaranteed, the fire is prevented from spreading when the conductor 7 catches fire through the flame-retardant layer 9, the fireproof performance of the cable is improved, and the loss is reduced;

next, the rubber frame 4 is partitioned through the cavity 10, heat is transferred to the inner layer 2 through the matching of the heat-conducting silica gel sheet 5 and the carbon fiber layer 6, heat dissipation is carried out through graphite inside the inner layer 2, and therefore the heat dissipation effect of the cable is improved;

finally, the strength of the cable is improved through the effect of the reinforcing ribs 15, the wear resistance and the heat insulation performance of the sheath 1 are improved through the glass fibers 17 and the polytetrafluoroethylene 18 in the heat insulation layer 16, and the influence of external cold weather on the use of the cable is avoided.

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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a cold-resistant long-life flame retarded cable, includes sheath (1), its characterized in that: an inner layer (2) is arranged in the sheath (1), a rubber strip (3) is arranged at the center position in the inner layer (2), a rubber frame (4) is fixedly connected between the inner layer (2) and the rubber strip (3) at equal intervals, one end of the rubber frame (4) is fixedly connected with a heat-conducting silica gel sheet (5), a carbon fiber layer (6) is filled in the rubber frame (4), a conductor (7) is arranged in the carbon fiber layer (6), an insulating sleeve (8) is sleeved on the outer side of the conductor (7), and a flame-retardant layer (9) is sleeved on the outer side of the insulating sleeve (8);

the heat-insulating rubber sheath is characterized in that a cavity (10) is formed between the rubber frames (4), heat-insulating rock wool (11) is filled in the cavity (10), elastic rubber strips (12) are arranged on the outer side of the inner layer (2) at equal intervals, a thermoplastic elastic sleeve (13) is sleeved on the outer side of the elastic rubber strips (12), an armor shell (14) is sleeved on the outer side of the thermoplastic elastic sleeve (13), reinforcing ribs (15) are fixedly connected between the sheath (1) and the armor shell (14) at equal intervals, a heat-insulating layer (16) is filled between the reinforcing ribs (15), and the heat-insulating layer (16) comprises glass fibers (17) and polytetrafluoroethylene (18).

2. The cold-resistant long-life flame-retardant cable as claimed in claim 1, wherein: anticorrosive material has been scribbled to the sheath (1) outside, inlayer (2) inside is filled there is graphite, heat conduction silica gel piece (5) one end is laminated with inlayer (2) inner wall mutually.

3. The cold-resistant long-life flame-retardant cable as claimed in claim 1, wherein: the insulation sleeve (8) is formed by mixing epoxy resin and polyimide, and aluminum silicate fibers are filled in the flame-retardant layer (9).

4. The cold-resistant long-life flame-retardant cable as claimed in claim 1, wherein: the number of the rubber frames (4) and the number of the cavities (10) are five respectively, and the elastic rubber strips (12) are arranged in a hollow manner.

5. The cold-resistant long-life flame-retardant cable as claimed in claim 1, wherein: one side of the elastic rubber strip (12) is attached to the inner wall of the thermoplastic elastic sleeve (13), and the other side of the elastic rubber strip (12) is attached to the outer side of the inner layer (2).

6. The cold-resistant long-life flame-retardant cable as claimed in claim 5, wherein: the reinforcing ribs (15) are arranged in a triangular mode, and the heat-insulating layer (16) is formed by filling glass fibers (17) and polytetrafluoroethylene (18) in a staggered mode.