Cable with moisture-proof and corrosion-resistant structure

Abstract

The utility model discloses a cable with a moisture-proof and corrosion-resistant structure, which belongs to the technical field of cables and comprises a cable main body and a cable core embedded in the cable main body, and a metal fixing ring is sleeved and clamped on the cable main body. The cable main body comprises an insulating filling layer which sleeves the plurality of cable cores in a matched manner and an elastic buffer layer arranged on the outer side of the insulating filling layer, a plurality of moisture-proof cavities are formed in the inner wall of the elastic buffer layer, a protective base layer is arranged on the outer wall of the elastic buffer layer, moisture-proof filling layers are embedded in the moisture-proof cavities, and the protective base layer is arranged on the outer side of the elastic buffer layer. The moistureproof filling layer in the cable moistureproof cavity of the moistureproof and corrosion-resistant structure improves the moistureproof effect of the cable main body, the elastic buffer layer improves the anti-extrusion strength of the cable main body, the anti-friction strength of the cable main body is improved, the service life of the cable main body is prolonged, and when the cable main body is installed, a bolt is inserted into an expansion pipe fixed in a wall to keep the cable main body fixed. And the installation convenience of the cable main body is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cable technical field, concretely relates to a cable with moisture-proof and corrosion-resistant structure. BACKGROUND

[0002] Power cable is used for transmission and distribution of electric energy, and is often used in urban underground power grid, power station outgoing line, internal power supply of industrial and mining enterprises and underwater power transmission line across rivers and seas. In power lines, the proportion of cables is gradually increasing. Power cable is a cable product used for transmission and distribution of high-power electric energy in the main line of power system, including 1-500KV and above various voltage levels and various insulation power cables. Many cables laid in many places are in a humid, acidic or alkaline environment for a long time, which greatly affects the role of the cable and shortens the service life of the cable. If the structure of the cable does not meet the standard in these aspects, it will affect the stability of the whole line. If there is a problem, the later work is very complicated. In winter, homes or public places such as shopping malls are usually designed with floor heating for heating, and the heat source is radiated from the underground to the indoor space to achieve the effect of heating. According to the power, the floor heating is divided into water heating and electric heating. Water heating is to lay special pipes under the floor, and the hot water in the pipes is circulated at a temperature not exceeding 60 degrees to heat the ground and radiate to the space. Electric heating is to lay special cables underground, and heat the ground by the heating of the cable itself. However, the electric heating is buried underground for a long time, and is stored in the underground with low temperature and relatively high humidity. When heating the ground, the electric heating is heated, the surface is easily liquefied to produce water droplets, which damages the cable. Moreover, the cable is easily corroded when buried underground for a long time, and has poor corrosion resistance, which is not conducive to long-term use. SUMMARY

[0003] (1) Technical problem to be solved

[0004] In view of the defects of the prior art, the utility model aims to provide a cable with moisture-proof and corrosion-resistant structure, which aims to solve the technical problem that the electric heating is buried underground for a long time, and is stored in the underground with low temperature and relatively high humidity. When heating the ground, the electric heating is heated, the surface is easily liquefied to produce water droplets, which damages the cable. Moreover, the cable is easily corroded when buried underground for a long time, and has poor corrosion resistance, which is not conducive to long-term use.

[0005] (2) Technical scheme

[0006] In order to solve the above technical problems, the utility model provides a kind of cable of damp -proof corrosion -resistant structure, the cable of damp -proof corrosion -resistant structure includes cable main body and cable core embedded in cable main body, metal fixing ring is connected with the sleeve of cable main body, and cable main body includes the insulating filling layer of anastomosis sleeve set on multiple cable cores and the elastic buffer layer of setting on the outside of insulating filling layer, the inner wall of elastic buffer layer is provided with multiple damp -proof cavities, and the outer wall of elastic buffer layer is provided with protective base layer, damp -proof filling layer is embedded in damp -proof cavity.

[0007] When using the technical solution, the corrosion -resistant effect of cable main body and its internal cable core is increased by first corrosion -resistant layer and second corrosion -resistant layer, the damp -proof effect of cable main body is improved by damp -proof filling layer in damp -proof cavity, the extrusion strength of cable main body is improved by elastic buffer layer, and the friction resistance strength and service life of cable main body are improved by wear -resistant protective layer;Metal fixing ring improves the heat conduction efficiency of cable main body by being connected on cable main body, and the outer wall of metal positioning ring is fixed with connecting seat, bolt is arranged in through -hole on connecting seat, bolt is inserted into expansion pipe fixed in wall during installation to keep fixed, and the convenience of cable main body installation is improved.

[0008] Preferably, the cable core is sleeved with a PVC protective layer, and the outer wall of the PVC protective layer is provided with a second corrosion -resistant layer.

[0009] Further, the outer wall of the PVC protective layer is provided with a second corrosion -resistant layer.

[0010] Further, the outer wall of the PVC protective layer is provided with a second corrosion -resistant layer.

[0011] Further, the cable core is made of a plurality of twisted wires, and the thickness of the first corrosion -resistant layer and the second corrosion -resistant layer is 0.2 to 0.4 mm.

[0012] Further, the outer wall of the metal fixing ring is fixed with connecting seat on both sides, and the connecting seat is provided with a through -hole.

[0013] Further, the connecting seat is provided with a bolt embedded in the through -hole.

[0014] (3) Advantageous effects

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] This utility model enhances the corrosion resistance of the cable body and its internal cable core through the first and second anti-corrosion layers. At the same time, the moisture-proof filling layer in the moisture-proof cavity improves the moisture-proof effect of the cable body, the elastic buffer layer improves the compressive strength of the cable body, and the wear-resistant protective layer improves the friction resistance and service life of the cable body.

[0017] By attaching a metal retaining ring to the cable body, the heat conduction efficiency of the cable body is improved. A connecting seat is fixed to the outer wall of the metal retaining ring, and bolts are installed in the through holes of the connecting seat. During installation, the bolts are inserted into the expansion tubes fixed in the wall to keep the cable body in place, thus improving the ease of cable body installation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the cable body in this utility model;

[0021] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A;

[0022] Figure 4 This is a schematic diagram of the metal fixing ring in this utility model.

[0023] The markings in the attached diagram are as follows: 1. Cable body; 2. Metal retaining ring; 3. Cable core; 4. PVC protective layer; 5. Bolt; 6. Tensile center rope; 7. Insulation filling layer; 8. Elastic buffer layer; 9. Protective base layer; 10. Moisture-proof filling layer; 11. First anti-corrosion layer; 12. Wear-resistant protective layer; 13. Moisture-proof cavity; 14. Second anti-corrosion layer; 15. Connecting seat; 16. Through hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This specific embodiment is a moisture-proof and corrosion-resistant cable, the structural diagram of which is shown below. Figure 1 and Figure 2 As shown, the cable with the moisture-proof and corrosion-resistant structure includes a cable body 1 and cable cores 3 embedded in the cable body 1. A metal fixing ring 2 is sleeved and snapped onto the cable body 1. The cable body 1 includes an insulating filling layer 7 fitted onto multiple cable cores 3 and an elastic buffer layer 8 disposed outside the insulating filling layer 7. Multiple moisture-proof cavities 13 are provided on the inner wall of the elastic buffer layer 8, and a protective base layer 9 is provided on the outer wall of the elastic buffer layer 8. Moisture-proof filling layers 10 are embedded in the moisture-proof cavities 13.

[0026] A PVC protective layer 4 is fitted onto the cable core 3. A second anti-corrosion layer 14 is provided on the outer wall of the PVC protective layer 4. An insulating filling layer 7 is attached to the outer wall of the PVC protective layer 4. An anti-tensile center rope 6 is embedded in the insulating filling layer 7 and located between multiple cable cores 3. A wear-resistant protective layer 12 is provided on the outer wall of the protective base layer 9. A first anti-corrosion layer 11 is provided on the wear-resistant protective layer 12. The first anti-corrosion layer 11 and the second anti-corrosion layer 14 increase the anti-corrosion effect of the cable body 1 and its internal cable cores 3. At the same time, the moisture-proof filling layer 10 in the moisture-proof cavity 13 improves the moisture-proof effect of the cable body 1. The elastic buffer layer 8 improves the compressive strength of the cable body 1. The wear-resistant protective layer 12 improves the friction resistance and service life of the cable body 1.

[0027] like Figure 3 and Figure 4 As shown, the cable core 3 is made of multiple stranded wires. The thickness of the first anti-corrosion layer 11 and the second anti-corrosion layer 14 is between 0.2 and 0.4 mm. Connecting seats 15 are fixed on both sides of the outer wall of the metal fixing ring 2. The connecting seats 15 have through holes 16. The top of the connecting seat 15 is provided with a bolt 5 embedded in the through hole 16. The metal fixing ring 2 improves the heat conduction efficiency of the cable body 1. The connecting seats 15 are fixed on the outer wall of the metal positioning ring. The bolt 5 is provided in the through hole 16 on the connecting seat 15. When the cable body 1 is installed, the bolt 5 is inserted into the expansion tube fixed in the wall to keep it fixed.

[0028] Working principle: When using the device of this technical solution, the first anti-corrosion layer 11 and the second anti-corrosion layer 14 increase the anti-corrosion effect of the cable body 1 and its internal cable core 3. At the same time, the moisture-proof filling layer 10 in the moisture-proof cavity 13 improves the moisture-proof effect of the cable body 1. The elastic buffer layer 8 improves the compressive strength of the cable body 1. The wear-resistant protective layer 12 improves the friction resistance and service life of the cable body 1. The metal fixing ring 2 improves the heat conduction efficiency of the cable body 1. The outer wall of the metal positioning ring is fixed with a connecting seat 15. The connecting seat 15 has a bolt 5 in the through hole 16. When the cable body 1 is installed, the bolt 5 is inserted into the expansion tube fixed in the wall to keep it fixed, which improves the convenience of the cable body 1 installation.

[0029] All technical features in this embodiment can be freely combined according to actual needs.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A moisture-proof and corrosion-resistant cable, comprising a cable body (1) and cable cores (3) embedded in the cable body (1), characterized in that, The cable body (1) is fitted with a metal fixing ring (2), and the cable body (1) includes an insulating filling layer (7) fitted on multiple cable cores (3) and an elastic buffer layer (8) disposed on the outside of the insulating filling layer (7). The inner wall of the elastic buffer layer (8) is provided with multiple moisture-proof cavities (13), and the outer wall of the elastic buffer layer (8) is provided with a protective base layer (9). The moisture-proof cavities (13) are embedded with a moisture-proof filling layer (10).

2. The cable with a moisture-proof and corrosion-resistant structure according to claim 1, characterized in that, The cable core (3) is fitted with a PVC protective layer (4), and the outer wall of the PVC protective layer (4) is provided with a second anti-corrosion layer (14).

3. The cable with a moisture-proof and corrosion-resistant structure according to claim 2, characterized in that, The insulating filler layer (7) is attached to the outer wall of the PVC protective layer (4), and the insulating filler layer (7) is embedded with a tensile center rope (6) located between multiple cable cores (3).

4. The cable with a moisture-proof and corrosion-resistant structure according to claim 3, characterized in that, The outer wall of the protective base layer (9) is provided with a wear-resistant protective layer (12), and a first anti-corrosion layer (11) is provided on the wear-resistant protective layer (12).

5. The cable with a moisture-proof and corrosion-resistant structure according to claim 4, characterized in that, The cable core (3) is made of multiple strands of wires, and the thickness of the first anti-corrosion layer (11) and the second anti-corrosion layer (14) is between 0.2 and 0.4 mm.

6. The cable with a moisture-proof and corrosion-resistant structure according to claim 1, characterized in that, Both sides of the outer wall of the metal fixing ring (2) are fixed with connecting seats (15), and the connecting seats (15) are provided with through holes (16).

7. The cable with a moisture-proof and corrosion-resistant structure according to claim 6, characterized in that, The top of the connector (15) is provided with a bolt (5) embedded in the through hole (16).

Images