Cold-proof cable

Abstract

The utility model relates to the technical field of cables, and discloses a cold-proof cable, which comprises a cable body and a cable core, the cable body further comprises an insulating layer, a heat preservation layer, an anti-crack layer, an anti-corrosion layer, a waterproof layer and a protective layer, the insulating layer is arranged on the outer side of the cable core, the heat preservation layer is arranged on the outer side of the insulating layer, and the anti-crack layer is arranged on the outer side of the anti-corrosion layer. The anti-cracking layer is arranged on the side, away from the insulating layer, of the heat preservation layer, the anti-corrosion layer is bonded to the side, away from the heat preservation layer, of the anti-cracking layer, the waterproof layer is bonded to the outer side of the anti-corrosion layer, and the protection layer is arranged on the side, away from the anti-corrosion layer, of the waterproof layer. According to the utility model, the physical performance of the cable can be kept unchanged even at an extremely low temperature, so that the interior of the cable body is protected from being affected by cold, and meanwhile, the cable has excellent flexibility, so that various complicated bending and stretching conditions can be easily handled, and the cable is prevented from being damaged under the condition of cold weather. And the cable body is cracked or broken when being bent, so that the cold-proof effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a cold-proof cable. Background Art

[0002] A cable is made of one or more mutually insulated conductors and an outer insulating protective layer. It is a wire that transmits electricity or information from one place to another. Due to the rapid development of modern society, power engineering has penetrated into all aspects of people's lives. Cables are needed to transmit electricity in various environments. In many places with harsh environments, power systems also need to be laid to ensure people's normal work and life.

[0003] If the current cables are used in cold weather, they will be severely damaged, causing the cables themselves to be too hard. In places with large bends, cables with excessive hardness will be prone to cracking, which will affect their subsequent service life. Utility Model Content

[0004] The purpose of the utility model is to provide a cold-proof cable to solve the problems existing in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cold-proof cable, comprising a cable body and a core, the cable body also comprising an insulating layer, a thermal insulation layer, an anti-cracking layer, an anti-corrosion layer, a waterproof layer and a protective layer, the insulating layer is arranged on the outside of the core, the thermal insulation layer is arranged on the outside of the insulating layer, the anti-cracking layer is arranged on the side of the thermal insulation layer away from the insulating layer, the anti-corrosion layer is bonded to the side of the anti-cracking layer away from the thermal insulation layer, the waterproof layer is bonded to the outside of the anti-corrosion layer, the protective layer is arranged on the side of the waterproof layer away from the anti-corrosion layer, and the outer surface of the core is provided with an anti-bending structure for protecting it.

[0006] Preferably, the anti-bending structure includes a first rubber body, a rubber connector and a second rubber body, the first rubber body is arranged at a middle position, the rubber connectors are in a plurality and are all fixed around the surface of the first rubber body, the second rubber body is fixed at the other end of the rubber connector, and the surface of the second rubber body is in contact with the surface of the wire core.

[0007] Preferably, the material of the anti-cracking layer is silicone rubber, and the material of the anti-corrosion layer is polyvinyl chloride.

[0008] Preferably, the inner side of the insulating layer is filled with a filling layer, and the material of the filling layer is a non-hygroscopic polypropylene mesh tear film.

[0009] Preferably, a cold-proof coating is provided on the outermost side of the protective layer, and the material of the cold-proof coating is polyurethane coating.

[0010] Preferably, a plurality of wear-resistant ridges are fixed around the outer surface of the protective layer, and the wear-resistant ridges are arranged and distributed at equal distances.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model arranges an anti-crack layer and an anti-corrosion layer so that the cable body can maintain the physical properties of the cable even in extremely low temperatures, thereby protecting the inside of the cable body from the influence of cold. At the same time, it also has good insulation performance and corrosion resistance, and can effectively prevent the cable body from chemical corrosion and physical damage, and avoid the appearance of cracks that lead to the entry of water molecules. At the same time, through the arrangement of the anti-bending structure, the cable body has excellent flexibility, which can easily cope with various complex bending and stretching conditions, and avoid the cable body from cracking or breaking when bending in cold climates, thereby further improving the cold-proof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the cable body in the utility model;

[0015] Figure 3 It is a schematic diagram of the anti-bending structure in the utility model.

[0016] In the figure: 1. Cable body; 11. Insulation layer; 12. Thermal insulation layer; 13. Anti-cracking layer; 14. Anti-corrosion layer; 15. Waterproof layer; 16. Protective layer; 2. Wire core; 3. Anti-bending structure; 31. First rubber body; 32. Rubber connector; 33. Second rubber body; 4. Filling layer; 5. Cold-proof coating; 6. Wear-resistant ridges. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-3As shown, a cold-proof cable includes a cable body 1 and a wire core 2. The cable body 1 also includes an insulating layer 11, a thermal insulation layer 12, an anti-cracking layer 13, an anti-corrosion layer 14, a waterproof layer 15 and a protective layer 16. The insulating layer 11 is arranged on the outside of the wire core 2, and the inner side of the insulating layer 11 is filled with a filling layer 4, and the material of the filling layer 4 is a non-hygroscopic polypropylene mesh tear film, so that the filling layer 4 can maintain stable performance in a humid environment, and the cable body 1 is prevented from being damaged by moisture intrusion. The thermal insulation layer 12 is arranged on the outside of the insulating layer 11, and the anti-cracking layer 13 is arranged on the side of the thermal insulation layer 12 away from the insulating layer 11. The anti-corrosion layer 14 is bonded to the anti-cracking layer 13 away from the thermal insulation layer 12. On one side, the waterproof layer 15 is bonded to the outside of the anti-corrosion layer 14, and the protective layer 16 is arranged on the side of the waterproof layer 15 away from the anti-corrosion layer 14. The outermost side of the protective layer 16 is provided with a cold-proof coating 5, and the material of the cold-proof coating 5 is polyurethane coating, so that a tough protective film can be formed on the outside of the cable body 1, which effectively reduces the heat loss of the cable body 1 and improves the cold resistance of the cable. A number of wear-resistant ridges 6 are fixed around the outer surface of the protective layer 16, and the wear-resistant ridges 6 are arranged at equal distances, which can increase the wear resistance of the cable body 1 and thus extend its service life. The outer surface of the core 2 is provided with an anti-bending structure 3 for protecting it.

[0019] The anti-bending structure 3 includes a first rubber body 31, a rubber connector 32 and a second rubber body 33. The first rubber body 31 is arranged at the middle position. There are a plurality of rubber connectors 32, which are all fixed around the surface of the first rubber body 31. The second rubber body 33 is fixed at the other end of the rubber connector 32. The surface of the second rubber body 33 fits the surface of the wire core 2. In this way, when the wire core 2 is bent and squeezed, it will contact the second rubber body 33 and the rubber connector 32. The first rubber body 31, the rubber connector 32 and the second rubber body 33 have good elasticity, thereby improving the subsequent anti-cracking effect.

[0020] The anti-cracking layer 13 is made of silicone rubber, and the anti-corrosion layer 14 is made of polyvinyl chloride, so that the cable body 1 can maintain the physical properties of the cable even in extremely low temperatures, thereby protecting the inside of the cable body 1 from the influence of cold. At the same time, it also has good insulation performance and corrosion resistance, and can effectively prevent the cable body 1 from chemical corrosion and physical damage.

[0021] It is worth noting that: the technical features proposed in this technical solution should be regarded as prior art, and the specific structure, working principle, and possible control method and spatial layout method of these technical features can be selected by conventional methods in the field, and this technical solution will not be further elaborated.

[0022] Working principle: When in use, the waterproof layer 15 can prevent the entry of external water molecules. When the cable body 1 is bent in cold seasons, the anti-cracking layer 13 is made of silicone rubber and the anti-corrosion layer 14 is made of polyvinyl chloride, so that the cable body 1 can maintain the physical properties of the cable unchanged even at extremely low temperatures, thereby protecting the inside of the cable body 1 from the influence of cold. At the same time, it also has good insulation performance and corrosion resistance, and can effectively prevent the cable body 1 from chemical corrosion and physical damage. In the bending process, the anti-bending structure 3 is set to make the cable body 1 have excellent flexibility, so that it can easily cope with various complex bending and stretching situations, especially in situations where frequent movement or bending is required. It performs particularly well. At the same time, it also has good wear resistance. When the cable body 1 is subjected to mechanical friction or impact, it can effectively protect the internal structure of the cable body 1 and extend the service life of the cable. It can also ensure that the cable body 1 can still work stably in a humid environment to avoid electrical performance degradation or damage caused by moisture intrusion.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0024] 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 cold-proof cable, comprising a cable body (1) and a wire core (2), characterized in that: The cable body (1) further comprises an insulating layer (11), a thermal insulation layer (12), an anti-cracking layer (13), an anti-corrosion layer (14), a waterproof layer (15) and a protective layer (16); the insulating layer (11) is arranged on the outer side of the wire core (2); the thermal insulation layer (12) is arranged on the outer side of the insulating layer (11); the anti-cracking layer (13) is arranged on a side of the thermal insulation layer (12) away from the insulating layer (11); the anti-corrosion layer (14) is bonded to a side of the anti-cracking layer (13) away from the thermal insulation layer (12); the waterproof layer (15) is bonded to the outer side of the anti-corrosion layer (14); the protective layer (16) is arranged on a side of the waterproof layer (15) away from the anti-corrosion layer (14); and the outer surface of the wire core (2) is provided with an anti-bending structure (3) for protecting the wire core (2).

2. A cold-proof cable according to claim 1, characterized in that: The anti-bending structure (3) comprises a first rubber body (31), a rubber connecting piece (32) and a second rubber body (33); the first rubber body (31) is arranged at a middle position; the rubber connecting pieces (32) are provided in a plurality and are all fixed around the surface of the first rubber body (31); the second rubber body (33) is fixed to the other end of the rubber connecting piece (32); and the surface of the second rubber body (33) is in contact with the surface of the wire core (2).

3. A cold-proof cable according to claim 1, characterized in that: The material of the anti-cracking layer (13) is silicone rubber, and the material of the anti-corrosion layer (14) is polyvinyl chloride.

4. A cold-proof cable according to claim 1, characterized in that: The inner side of the insulating layer (11) is filled with a filling layer (4), and the material of the filling layer (4) is a non-hygroscopic polypropylene mesh tear film.

5. A cold-proof cable according to claim 1, characterized in that: The outermost side of the protective layer (16) is provided with a cold-proof coating (5), and the material of the cold-proof coating (5) is polyurethane coating.

6. A cold-proof cable according to claim 1, characterized in that: A plurality of wear-resistant ridges (6) are fixed around the outer surface of the protective layer (16), and the wear-resistant ridges (6) are arranged and distributed at equal distances.

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