A high-voltage cable protected against collision damage

Abstract

This utility model discloses a high-voltage cable designed to prevent collision damage, comprising a high-voltage cable body and a rubber barrier layer disposed on the outermost side of the high-voltage cable body for wear resistance and structural protection; an anti-pressure component is disposed inside the high-voltage cable body, and the anti-pressure component includes an anti-pressure sheathing strip; a protective component is disposed inside the high-voltage cable body, and the protective component includes an insulating protective layer; wherein, the protective component includes a sheathing isolation layer, and the cable core body is disposed at equal angles inside the sheathing isolation layer. This high-voltage cable designed to prevent collision damage utilizes the rigid support layer on the inner wall of the rubber barrier layer and the anti-pressure sheathing strip for collision protection, improving its resilience and pressure resistance during bending and torsion. Simultaneously, the filling ribs and positioning strips respectively position the sheathing isolation layer and the internal cable core body, further enhancing the collision and pressure resistance effects.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage cable technology, specifically to a high-voltage cable that is resistant to collision damage. Background Technology

[0002] High-voltage cables are a type of power cable specifically designed for transmitting high-voltage electrical energy. High-voltage cables typically refer to power cables with a rated voltage between 1kV and 1000kV. They are mainly used in power backbone networks (urban power grids, substation interconnection), industrial scenarios (power transmission in large factories and power plants), underground laying, and long-distance power transmission across regions. During the installation process, collisions with the installation equipment and objects in the installation environment are inevitable.

[0003] The utility model with announcement number CN214068395U discloses an anti-collision 5G interconnection cable, which has an elastic second elastic part between the insulating sleeve and the buffer layer; and a gap is left between the buffer layer and the insulating sleeve, thus further enhancing the anti-collision performance of the cable. The first braided layer is provided with a first filler rope and a second filler rope, and a third filler rope is provided on both sides of the third core to further prevent the core from being damaged by collision.

[0004] While the aforementioned technologies, including anti-collision cables, meet the operational requirements to some extent, they still have some significant drawbacks. For example: 1. Although anti-collision effects are achieved by setting buffer layers and elastic components inside the cable, these anti-collision components are set at angles inside the cable, which can easily affect the cable's flexibility during laying and bending as needed; 2. The weight of the cable is significantly increased, which hinders the installation and laying of the cable. At the same time, a large number of anti-collision components can also affect the heat dissipation effect inside the cable, increasing manufacturing difficulty and cost.

[0005] In summary, it is particularly important to design a high-voltage cable that has good anti-collision performance, can reduce the weight of protective components, does not put extra burden on the cable body, can effectively ensure that the cable body is not subjected to collisions and avoids excessive friction during the laying process, and can also improve the stability of the internal cable core. Utility Model Content

[0006] The purpose of this invention is to overcome the problem that the anti-collision effect is achieved by setting buffer layers, elastic components and other structures inside the cable in the above-mentioned background technology. However, such anti-collision components are set at the same angle inside the cable, which can easily affect the flexibility of the cable when laying and bending it as needed, greatly increase the weight of the cable, and thus hinder the installation and laying of the cable. At the same time, a large number of anti-collision components can also affect the heat dissipation effect inside the cable, increasing the manufacturing difficulty and cost.

[0007] To achieve the above objectives, the technical approach adopted by this utility model is as follows: the rigid support layer on the inner wall of the rubber barrier layer and the pressure-resistant covering strip provide anti-collision support, thereby improving the resilience and pressure resistance during bending and torsion. At the same time, the filling plastic reinforcement and positioning strip frame are used to position the covering isolation layer and the inner cable core body respectively, thereby improving the anti-collision and pressure resistance effects.

[0008] Based on the above technical concept, the technical solution adopted by this utility model is as follows:

[0009] A high-voltage cable designed to prevent collision damage includes a high-voltage cable body and a rubber barrier layer disposed on the outermost side of the high-voltage cable body for wear resistance and installation protection.

[0010] The high-voltage cable body is provided with a pressure-resistant component inside, and the pressure-resistant component includes a pressure-resistant covering strip, and the pressure-resistant covering strip is distributed in a spiral structure.

[0011] The high-voltage cable body is equipped with a protective component inside, and the protective component is located inside the pressure-resistant component.

[0012] The protective component includes a protective insulation layer, and the cable core body is arranged at equal angles inside the protective insulation layer.

[0013] Preferably, the pressure-resistant component includes a rigid support layer, which is disposed on the inner wall of the rubber barrier layer. The rigid support layer is used to improve the bending resistance of the high-voltage cable body and avoid damage caused by large-angle bending under conditions such as dragging and burying.

[0014] Preferably, the pressure-resistant component includes a pressure-resistant covering strip that is fitted to the inner wall of the rigid support layer, and the pressure-resistant covering strip has an equal angle structure to achieve a gapless fit. Furthermore, the metal pressure-resistant covering strip prevents the internal cable core body from being squeezed during a collision.

[0015] Preferably, the anti-compression component includes an elastic connecting layer, which is attached to the inner wall of the anti-compression covering strip. The inner and outer sides of the elastic connecting layer are provided with equal-angled dispersion and balance grooves. The equal-angled dispersion and balance grooves are used to reduce the overall weight and disperse the impact pressure to improve the anti-compression effect.

[0016] Preferably, the protective component includes filler ribs, which are distributed at equal angles on the inner wall of the elastic connecting layer, and the filler ribs are in contact with the outer wall of the covering isolation layer, and the filler ribs position the covering isolation layer that is set at equal angles.

[0017] Preferably, the protective component includes a positioning strip frame, which is fixedly installed on the inner wall of the covering isolation layer, and the positioning strip frame has positioning and pressure-resistant grooves at equal angles on the side of the covering isolation layer, so that the positioning strip frame supports the covering isolation layer.

[0018] Preferably, the cable core body included in the protective component is installed in a positioning and pressure-resistant groove opened at equal angles inside the positioning frame. The positioning and pressure-resistant groove is used to position the cable core body to avoid displacement that would affect the stability of transmission when it is hit, subjected to force or bent.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This high-voltage cable designed to prevent collision damage uses a rigid support layer on the inner wall of the rubber barrier layer and a pressure-resistant covering strip to provide anti-collision support, improving its resilience and pressure resistance during bending and torsion. Simultaneously, the filling plastic reinforcement and positioning strips respectively position the covering isolation layer and the internal cable core body, further enhancing the anti-collision and pressure-resistant effects. The specific details are as follows:

[0020] 1. The high-voltage cable body is protected by the outermost rubber barrier layer to protect the internal components. This allows the components to come into contact with each other during transportation and laying, improving the anti-friction effect, avoiding damage to the internal cable core, and enhancing the integrity of the high-voltage cable body.

[0021] 2. The rubber barrier layer has a rigid support layer inside, which prevents excessive bending and twisting of the high-voltage cable body. The rigid support layer has pressure-resistant wrapping strips with equal angle spiral distribution inside, which improves the recovery effect after deformation and bending. In the event of collision or puncture, the pressure-resistant wrapping strips form a protective layer to improve the protection effect.

[0022] 3. When the high-voltage cable body is under pressure, the pressure is transmitted to the elastic connection layer and distributed through the equal-angled distribution and balancing grooves to avoid excessive pressure on the internal cable core body.

[0023] Furthermore, the cable core body, which is set at equal angles, is installed through positioning and pressure-resistant grooves opened inside the positioning frame to ensure the stability of the cable core body when twisted and bent. At the same time, the filling plastic reinforcements set at equal angles position the cable core body inside the covering isolation layer, improving the anti-collision and pressure resistance effect. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the compressive coating strip of this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the elastic connecting layer of this utility model;

[0027] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0028] Figure 5 This is a schematic diagram of the cable core body installation structure of this utility model;

[0029] Figure 6 This is a schematic diagram of the three-dimensional structure of the filling plastic reinforcement of this utility model.

[0030] In the diagram: 1. High-voltage cable body; 2. Rubber barrier layer; 3. Pressure-resistant wrapping strip; 4. Positioning pressure-resistant groove; 5. Wrapping isolation layer; 6. Cable core body; 7. Rigid support layer; 8. Elastic connection layer; 9. Dispersion balance groove; 10. Filling plastic reinforcement; 11. Positioning strip frame. Detailed Implementation

[0031] 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.

[0032] Please see Figures 1-6 The present invention provides the following technical solution:

[0033] Example 1: To address the problems existing in the practical use of current high-voltage cables, this example discloses the following technical solution: a high-voltage cable designed to prevent collision damage, comprising a high-voltage cable body 1 and a rubber barrier layer 2 disposed on the outermost side of the high-voltage cable body 1 for wear resistance and installation protection; the high-voltage cable body 1 is internally provided with a pressure-resistant component, which includes a pressure-resistant covering strip 3, and the pressure-resistant covering strip 3 is distributed in a spiral structure; the pressure-resistant component includes a rigid support layer 7, which is disposed on the inner wall of the rubber barrier layer 2. The rigid support layer 7 is used to improve the bending resistance of the high-voltage cable body 1 and prevent damage caused by large-angle bending under conditions such as dragging and burial.

[0034] The pressure-resistant component includes a pressure-resistant covering strip 3 that is attached to the inner wall of the rigid support layer 7. The pressure-resistant covering strip 3 has an equal angle structure to achieve a gapless fit. Furthermore, the metal pressure-resistant covering strip 3 prevents the internal cable core body 6 from being squeezed during a collision.

[0035] like Figures 1-2 As shown, the high-voltage cable body 1 is protected by the outermost rubber barrier layer 2. When the high-voltage cable body 1 is wound and transported, it is in contact with the outside through the rubber barrier layer 2, which can prevent the internal cable core body 6 from being affected by wear during dragging and laying, thus improving the integrity of the high-voltage cable body 1.

[0036] Furthermore, the rigid support layer 7 located inside the rubber barrier layer 2 provides support rigidity, and the pressure-resistant wrapping strips 3 attached to the remaining inner walls enhance the recovery effect after deformation and bending. The rigid support layer 7 can effectively prevent the cable core body 6 from being excessively bent and twisted, ensuring the normal transmission operation of the cable core body 6. At the same time, the pressure-resistant wrapping strips 3, which are spirally distributed at equal angles inside the high-voltage cable body 1, are made of metal. When collision or puncture occurs, the pressure-resistant wrapping strips 3 form a protective layer to prevent damage to the internal cable core body 6.

[0037] Example 2: To address the problems existing in the practical use of current high-voltage cables, this example discloses the following technical solution: A protective component is provided inside the high-voltage cable body 1, and the protective component is located inside the pressure-resistant component; wherein, the protective component includes a covering isolation layer 5, and a cable core body 6 is arranged at equal angles inside the covering isolation layer 5; the protective component includes a filling plastic rib 10, and the filling plastic rib 10 is distributed at equal angles on the inner wall of the elastic connection layer 8, and the filling plastic rib 10 is in contact with the outer wall of the covering isolation layer 5, and the filling plastic rib 10 positions the covering isolation layer 5 arranged at equal angles; the pressure-resistant component includes an elastic connection layer 8, and the elastic connection layer 8 is attached to the inner wall of the pressure-resistant covering strip 3, and a dispersion balance groove 9 is opened at equal angles on both the inner and outer sides of the elastic connection layer 8. The dispersion balance groove 9 opened at equal angles is used to reduce the overall weight and disperse the collision pressure to improve the pressure resistance effect.

[0038] The protective component includes a positioning frame 11, which is fixedly installed on the inner wall of the covering isolation layer 5. The positioning frame 11 has positioning and pressure-resistant grooves 4 at equal angles on the side close to the covering isolation layer 5, and the positioning frame 11 supports the covering isolation layer 5. The cable core body 6 included in the protective component is installed in the positioning and pressure-resistant grooves 4 at equal angles inside the positioning frame 11. The positioning and pressure-resistant grooves 4 position the cable core body 6 to prevent displacement that would affect the stability of transmission during collisions, stress, or bending.

[0039] like Figures 3-6 As shown, the protective component includes an elastic connection layer 8 disposed on the inner wall of the pressure-resistant covering strip 3. During the pressure process, the elastic connection layer 8 transmits and disperses the pressure through the dispersion and balance grooves 9 opened on its inner and outer sides. The dispersion and balance grooves 9 opened can reduce the weight of the overall high-voltage cable body 1, avoid excessive pressure on the internal cable core body 6, and also avoid hindering the heat dissipation effect of the cable core body 6.

[0040] Furthermore, the elastic connection layer 8 is positioned for the covering isolation layer 5 by the internally equidistantly distributed filling plastic reinforcements 10. The internal of the equidistantly distributed covering isolation layer 5 is filled by the installation positioning frame 11. At the same time, the internal of the positioning frame 11 is provided with positioning and pressure-resistant grooves 4 at equal angles, so that the cable core body 6 can be installed through the positioning and pressure-resistant grooves 4, avoiding misalignment between the cable core body 6 and the external components when twisted. The cable core body 6 and the covering isolation layer 5 are positioned by the positioning frame 11 and the filling plastic reinforcements 10 respectively, improving the anti-collision and pressure-resistant effect.

[0041] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A high-voltage cable designed to prevent collision damage, comprising a high-voltage cable body (1) and a rubber barrier layer (2) disposed on the outermost side of the high-voltage cable body (1) for wear resistance and installation protection; characterized in that, The high-voltage cable body (1) is provided with an anti-pressure component inside, and the anti-pressure component includes an anti-pressure covering strip (3), and the anti-pressure covering strip (3) is distributed in a spiral structure. The high-voltage cable body (1) is provided with a protective component inside, and the protective component is located inside the pressure-resistant component; The protective component includes a covering isolation layer (5), and the cable core body (6) is arranged at equal angles inside the covering isolation layer (5).

2. A high-voltage cable resistant to collision damage according to claim 1, characterized in that: The pressure-resistant component includes a rigid support layer (7), which is disposed on the inner wall of the rubber barrier layer (2). The rigid support layer (7) is used to improve the bending resistance of the high-voltage cable body (1) and avoid damage caused by large-angle bending during dragging and burying.

3. A high voltage cable protected against damage from a collision according to claim 2, characterized in that: The pressure-resistant component includes a pressure-resistant covering strip (3) that is attached to the inner wall of the rigid support layer (7). The pressure-resistant covering strip (3) has an equal angle structure to achieve a gapless fit. The metal pressure-resistant covering strip (3) prevents the internal cable core body (6) from being squeezed during a collision.

4. A high voltage cable protected against damage from a collision according to claim 3, characterized in that: The anti-compression component includes an elastic connecting layer (8), which is attached to the inner wall of the anti-compression covering strip (3). The inner and outer sides of the elastic connecting layer (8) are provided with equal angles of dispersion and balance grooves (9). The equal angles of the dispersion and balance grooves (9) are used to reduce the overall weight and disperse the collision pressure to improve the anti-compression effect.

5. A high voltage cable protected against damage from a collision according to claim 1, characterized in that: The protective component includes a filling rib (10), and the filling rib (10) is distributed at equal angles on the inner wall of the elastic connecting layer (8), and the filling rib (10) is in contact with the outer wall of the covering isolation layer (5), and the filling rib (10) positions the covering isolation layer (5) which is set at equal angles.

6. A high voltage cable protected against damage from a collision according to claim 5, characterized in that: The protective component includes a positioning strip (11), which is fixedly installed on the inner wall of the covering isolation layer (5). The positioning strip (11) has a positioning and pressure-resistant groove (4) at an equal angle on the side of the covering isolation layer (5) to support the covering isolation layer (5).

7. A high voltage cable protected against collision damage according to claim 6, characterized in that: The protective component includes a cable core body (6) which is installed in a positioning and pressure-resistant groove (4) opened at equal angles inside the positioning frame (11). The positioning and pressure-resistant groove (4) positions the cable core body (6) to prevent it from shifting during collision, stress or bending, thus affecting the stability of transmission.

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