Anti-twisting cable

Abstract

The utility model discloses an anti-twist cable, which is characterized in that the anti-twist cable comprises an outer sheath, a plurality of cable cores are arranged in the outer sheath, and a semi-conductive nylon tape is wound outside the plurality of cable cores; the conductor shielding layer is arranged at the outer part of the semi-conductive nylon tape, and an insulating layer is arranged at the outer part of the conductor shielding layer; the buffer layer is made of mineral wool buffer materials, mineral wool and products of the mineral wool have the advantages of being durable, non-combustible, non-corrosive, free of damage by worms and the like and are excellent heat-insulation, heat-preservation and sound-absorption materials, cotton-shaped short fibers made of silicate melts are good in heat-insulation, heat-preservation and sound-absorption performance, and the anti-twist components are arranged in the outer protective layer. Comprising mineral wool, rock wool, glass wool, ceramic fibers and the like, and through cooperative use of the central reinforcing core, the armor layer and the tensile bars, the anti-distortion performance of the plurality of cable cores can be improved, and the cable cores are prevented from being randomly distorted in outdoor installation and use regulations to influence the later service life of the cable cores.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to an anti-twisting cable. Background Art

[0002] With the development of the national economy, the demand for electricity is getting higher and higher. As one of the transmission carriers of electricity, power cable has also been increasingly used. It is an indispensable part of the power transmission and transformation equipment system and the foundation of various industries. It is widely used in large power stations and transmission line processes, airports, subways, crossing rivers, crossing seas and other occasions. It is known as the "blood vessels" and "nerves" of the national economy and is closely related to the development of the national economy. With the continuous development of urbanization in my country, the power consumption and quality of urban electricity consumption have been continuously improved, and the medium-voltage power cable transmission network has been rapidly developed. Cables are composed of one or several wires, which are used to transmit electricity or information. Cables have many uses, mainly used for control installation, connection of equipment and transmission of electricity. It is a common and indispensable thing in daily life. Because cables are charged, installation requires special caution. The wires that transmit electricity or information from one place to another. Cables in a broad sense refer to devices that use metal as a medium to transmit electrical signals.

[0003] For example, a Chinese patent with publication number CN219610083U proposes a cable, which includes a cable core; a group of the outer surfaces of the cable core are provided with a filling layer; the outer surface of the filling layer is provided with an insulating layer; the outer surface of the insulating layer is provided with a flame retardant layer; the outer surface of the flame retardant layer is provided with an anti-aging layer; the outer surface of the cable core is provided with a filling layer, an insulating layer, a flame retardant layer and an anti-aging layer in sequence from the inside to the outside; the outermost anti-aging layer of the cable can cover the internal structure of the cable, and protect the internal cable core and other functional layers of the cable. Due to the quality reasons, the cable is prevented from cracking under the erosion of sunlight, wind and rain, and the anti-aging effect of the cable is improved. The material of the filling layer is polyester tape. The filling layer is to fill the larger gaps between the insulating cores to play an insulating role. It has the effect of high and low temperature resistance. However, in this solution, if the cable is in an exposed working environment, it will encounter various unexpected situations during the work process and be twisted by external forces. Both axial and radial twisting greatly reduce the service life of the cable. In order to solve the above problems, we have proposed an anti-twisting cable. Utility Model Content

[0004] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide an anti-twisting cable to solve the problems mentioned in the background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A twist-proof cable comprises: an outer sheath, wherein a plurality of cable cores are arranged inside the outer sheath, and a semi-conductive nylon tape is wound around the outside of the plurality of cable cores; a conductor shielding layer, wherein the conductor shielding layer is arranged outside the semi-conductive nylon tape, and an insulating layer is arranged outside the conductor shielding layer; and an anti-twist component, wherein the anti-twist component is arranged inside the outer sheath and is used to prevent the cable core from twisting.

[0007] By adopting the above technical solution and providing an anti-twist component, the anti-twist component can prevent the cable core from twisting during use, thereby affecting the subsequent service life of the cable core.

[0008] Preferably, the anti-twist component comprises: a central reinforcing core, which is arranged between a plurality of the cable cores; an armor layer is arranged inside the outer sheath, and a buffer layer is fixedly connected to the outer circular wall surface of the armor layer; and an anti-stretching rod, which is arranged outside the buffer layer.

[0009] By adopting the above technical scheme, by setting a central reinforcing core, and by using the central reinforcing core, armor layer and anti-tensile rod in combination, the anti-twisting property of several cable cores can be improved, thereby preventing the cable cores from twisting randomly during outdoor installation and use, thereby affecting the later service life of the cable cores.

[0010] Preferably, a first filling layer is arranged inside the semi-conductive nylon tape, and a tinned copper wire shield is wound around the outer circular wall surface of the insulating layer.

[0011] By adopting the above technical solution, by setting a tinned copper wire shield, and by using the tinned copper wire shield in conjunction with a semi-conductive nylon tape, the anti-interference property of the cable core is increased, thereby preventing the cable core from being interfered with by a magnetic field during operation.

[0012] Preferably, a second filling layer is provided inside the outer protective layer, and a fire-resistant layer is provided inside the armor layer.

[0013] By adopting the above technical solution and setting a refractory layer, the material has aging resistance, arc resistance, ablation resistance, high and low temperature resistance, etc.

[0014] Preferably, an anti-corrosion layer is provided outside the outer protective layer.

[0015] By adopting the above technical solution and providing an anti-corrosion layer, the anti-corrosion layer can improve the anti-corrosion effect of the outer protective layer.

[0016] Preferably, the buffer layer is made of mineral wool buffer material, and the first filling layer and the second filling layer are both made of glass fiber material.

[0017] By adopting the above technical scheme and setting a buffer layer, since the buffer layer is made of mineral wool buffer material, mineral wool and its products have the advantages of being light, durable, non-flammable, non-corrosive and not susceptible to insect infestation. They are excellent thermal insulation and sound absorption materials. The cotton-like short fibers made from silicate melts include slag wool, rock wool, glass wool and ceramic fibers.

[0018] In summary, the utility model mainly has the following beneficial effects:

[0019] By setting a central reinforcing core and using the central reinforcing core, armor layer and anti-tensile rod together, the anti-twisting property of several cable cores can be improved, and the cable core can be prevented from twisting arbitrarily during outdoor installation and use, which will affect the later service life of the cable core. By setting a buffer layer, since the buffer layer is made of mineral wool buffer material, mineral wool and its products have the advantages of light weight, durability, non-flammability, non-corrosion and insect-proof, and are excellent thermal insulation and sound absorption materials. Cotton-like short fibers made from silicate melts, including slag wool, rock wool, glass wool and ceramic fibers, are shielded by tinned copper wire and used in combination with semi-conductive nylon tape, thereby increasing the anti-interference property of the cable core and preventing the cable core from being interfered by the magnetic field during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the central reinforcement core structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the anti-stretching rod of the utility model;

[0023] Figure numerals: 1. Outer sheath; 2. Cable core; 3. Semi-conductive nylon tape; 4. Conductor shielding layer; 5. Insulation layer; 6. Center reinforcement core; 7. Armor layer; 8. Buffer layer; 9. Anti-tensile rod; 10. First filling layer; 11. Tinned copper wire shielding; 12. Second filling layer; 13. Fire-resistant layer; 14. Anti-corrosion layer. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] refer to Figure 1 , Figure 2 and Figure 3, an anti-twisting cable, comprising an outer sheath 1, a plurality of cable cores 2 are arranged inside the outer sheath 1, a semi-conductive nylon tape 3 is wound around the outside of the plurality of cable cores 2, a conductor shielding layer 4 is arranged outside the semi-conductive nylon tape 3, an insulating layer 5 is arranged outside the conductor shielding layer 4, an anti-twisting component is arranged inside the outer sheath 1 to prevent the cable core 2 from twisting, a central reinforcing core 6 of the anti-twisting component, the central reinforcing core 6 is arranged between the plurality of cable cores 2, an armor layer 7 is arranged inside the outer sheath 1, a buffer layer 8 is fixedly connected to the outer circumferential wall surface of the armor layer 7, the buffer layer 8 is made of mineral wool buffer material, mineral wool and its products have the advantages of light weight, durability, non-combustibility, non-corrosion and insect-proof, and are excellent heat insulation and sound absorption materials, cotton-like short fibers made from silicate melts, including slag wool, rock wool, glass wool and ceramic fibers, etc., an anti-tensile rod 9 is arranged outside the buffer layer 8;

[0026] A first filling layer 10 is arranged inside the semi-conductive nylon belt 3, a tinned copper wire shield 11 is wound around the outer circumferential wall of the insulating layer 5, a second filling layer 12 is arranged inside the outer sheath 1, a fire-resistant layer 13 is arranged inside the armor layer 7, and an anti-corrosion layer 14 is arranged outside the outer sheath 1. The first filling layer 10 and the second filling layer 12 are both made of glass fiber material, and the fire-resistant layer 13 is made of ceramic polyolefin material. The ceramic polyolefin has the characteristics of linear organosiloxane polymers, and its relative molecular mass is as high as hundreds of thousands or even millions, showing excellent insulation performance, aging resistance, arc resistance, ablation resistance, high and low temperature resistance, etc.

[0027] Working principle: Please refer to Figure 1-Figure 3 As shown, by setting a central reinforcing core 6 and using the central reinforcing core 6, the armor layer 7 and the anti-tensile rod 9 in combination, the anti-twisting property of several cable cores 2 can be improved, and the cable core 2 can be prevented from twisting arbitrarily during the outdoor installation and use procedures, thereby affecting the later service life of the cable core 2. By setting a tinned copper wire shield 11 and using the tinned copper wire shield 11 in combination with the semi-conductive nylon tape 3, the anti-interference property of the cable core 2 can be increased, and the cable core 2 can be prevented from being interfered by the magnetic field during operation.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A twist-resistant cable, characterized in that: include: An outer sheath (1), wherein a plurality of cable cores (2) are arranged inside the outer sheath (1), and a semi-conductive nylon tape (3) is wound around the outside of the plurality of cable cores (2); A conductor shielding layer (4), the conductor shielding layer (4) being arranged outside the semi-conductive nylon tape (3), and an insulating layer (5) being arranged outside the conductor shielding layer (4); An anti-twist component is arranged inside the outer sheath (1) and is used to prevent the cable core (2) from twisting.

2. The anti-twisting cable according to claim 1, characterized in that: The anti-twist component: A central reinforcing core (6), wherein the central reinforcing core (6) is arranged between a plurality of the cable cores (2); an armor layer (7) is arranged inside the outer sheath (1); and a buffer layer (8) is fixedly connected to the outer circumferential wall surface of the armor layer (7); An anti-stretching rod (9), wherein the anti-stretching rod (9) is arranged outside the buffer layer (8).

3. The anti-twisting cable according to claim 2, characterized in that: A first filling layer (10) is arranged inside the semi-conductive nylon tape (3), and a tinned copper wire shield (11) is wound around the outer circumferential wall surface of the insulating layer (5).

4. The anti-twisting cable according to claim 3, characterized in that: A second filling layer (12) is arranged inside the outer protective layer (1), and a fire-resistant layer (13) is arranged inside the armor layer (7).

5. The anti-twisting cable according to claim 1, characterized in that: An anti-corrosion layer (14) is provided outside the outer protective layer (1).

6. The anti-twisting cable according to claim 4, characterized in that: The buffer layer (8) is made of mineral wool buffer material, and the first filling layer (10) and the second filling layer (12) are both made of glass fiber material.

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