Anti-biting power cable

Abstract

The utility model belongs to the technical field of cables, and particularly relates to an anti-biting power cable, which comprises a plurality of conductors and an armor layer, insulating layers are respectively arranged outside the plurality of conductors to form a plurality of core wires, a belting layer is arranged outside the plurality of core wires, and the belting layer wraps the plurality of core wires; the armor layer is arranged outside the belting layer, an elastic buffer layer is arranged between the armor layer and the belting layer, and the cross section of the elastic buffer layer is of a triangular structure connected end to end; and a sheath is arranged outside the armor layer.

Description

Technical Field

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

[0002] With the rapid development of urbanization and industrialization, wires and cables are indispensable infrastructure in modern life and industrial production, and their safety and reliability are particularly important. However, in many application scenarios, especially in outdoor, field, farm and some underground laying environments, wires and cables often face serious threats from rodents (such as mice, squirrels, etc.) in nature. These animals often gnaw on the insulation layer of the cable in search of food or to grind their teeth, causing cable short circuits, leakage and even fires, which not only cause economic losses, but may also cause serious safety accidents.

[0003] Although traditional cable designs focus on electrical performance and physical durability, they are often insufficient in terms of anti-bite capabilities. Common protective measures such as increasing the thickness of the outer sheath or using an armor layer made of ordinary materials can improve the anti-bite capabilities to a certain extent, but the effect is limited and the added cost is high. At the same time, it does not fundamentally solve the problem of animal biting. Utility Model Content

[0004] Based on the problems mentioned in the above background technology, the utility model provides an anti-bite power cable.

[0005] The technical solution adopted by the utility model is as follows: a bite-proof power cable, comprising a plurality of conductors and an armor layer, wherein the plurality of conductors are respectively provided with insulating layers outside to form a plurality of core wires, and a tape layer is provided outside the plurality of core wires, and the tape layer wraps the plurality of core wires; the armor layer is provided outside the tape layer, and an elastic buffer layer is provided between the armor layer and the tape layer, and the cross-section of the elastic buffer layer is a triangular structure connected in the first place; and a sheath is provided outside the armor layer.

[0006] Furthermore, a cushion layer is provided between the elastic buffer layer and the tape layer, and between the elastic buffer layer and the armor layer.

[0007] Furthermore, the plurality of core wires include a circular core wire arranged in the middle, and the cross sections of the remaining core wires are fan-shaped arrays with chamfers opened on the periphery of the circular core wire.

[0008] Furthermore, fillers are provided between the insulating layers and between the insulating layers and the wrapping tape.

[0009] Furthermore, the armor layer is formed by weaving non-magnetic metal strips.

[0010] Furthermore, the insulating layer and the sheath are both polyvinyl chloride layers.

[0011] Furthermore, the elastic buffer layer is a rubber layer.

[0012] Beneficial effects of the utility model:

[0013] 1. The insulation layer is wrapped around the conductor to form a core wire to ensure power transmission, the tape layer is wound and fixed to ensure structural stability, and the armor layer and the sheath provide mechanical protection. The elastic buffer layer is arranged between the armor layer and the tape layer. On the one hand, its triangular cross-section structural characteristics can provide stronger directional support, especially under bending or torsional stress, and can better resist mechanical stress in a specific direction, thereby improving the cable's ability to resist bending and twisting; on the other hand, when facing the gnawing of rodents such as rats, its elastic characteristics absorb and disperse external mechanical impacts, reduce the direct pressure on the armor layer, and extend the service life of the armor layer. When the cable is slightly deformed due to gnawing, the triangular elastic buffer layer can provide more uniform support, and the deformation range of the triangular elastic buffer layer is a cavity, so that the armor layer can have more deformation areas when bitten and is not easily penetrated. Even if the rodent tooth tip penetrates the armor layer, the elastic buffer layer can also play an anti-penetration effect, effectively reducing the impact of rodent gnawing on the normal use of the cable.

[0014] 2. The circular core wire is set in the middle, and the other fan-shaped core wire arrays are on the outside. On the one hand, the overall structure is more compact, the space utilization rate is higher, and the gaps between the core wires are reduced; on the other hand, the fan-shaped surrounding circular layout structure is more stable, better resisting mechanical stress such as bending and twisting, and reducing damage during use; the addition of fillers prevents the core wires from moving relative to each other when the cable is bent or stressed, thereby maintaining the stability of the internal structure of the cable and reducing signal interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0016] Figure 1 It is a schematic diagram of the utility model;

[0017] The attached drawings are marked as follows:

[0018] Conductor 1, insulation layer 2, filling layer 3, tape layer 4, cushion layer 5, elastic buffer layer 6, armor layer 7, sheath 8, round core wire 9. DETAILED DESCRIPTION

[0019] like Figure 1As shown, a bite-proof power cable comprises a plurality of conductors 1 and an armor layer 7, wherein the plurality of conductors 1 are respectively provided with an insulating layer 2 outside to form a plurality of core wires, and a tape layer 4 is provided outside the plurality of core wires, and the tape layer 4 wraps the plurality of core wires; the armor layer 7 is provided outside the tape layer 4, and an elastic buffer layer 6 is provided between the armor layer 7 and the tape layer 4, and the cross section of the elastic buffer layer 6 is a first-connected triangular structure; a sheath 8 is provided outside the armor layer 7.

[0020] By adopting the above technical solution, the insulating layer 2 is wrapped around the conductor 1 to form a core wire to ensure power transmission, the tape layer 4 is wound and fixed to ensure structural stability, the armor layer 7 and the sheath 8 provide mechanical protection, wherein the elastic buffer layer 6 is arranged between the armor layer 7 and the tape layer 4. On the one hand, the structural characteristics of its triangular cross-section can provide stronger directional support, especially under bending or torsional stress, and can better resist mechanical stress in a specific direction, thereby improving the cable's ability to resist bending and twisting; on the other hand, when facing the gnawing of rodents such as rats, its elastic characteristics absorb and disperse external mechanical impacts, reduce the direct pressure on the armor layer 7, and extend the service life of the armor layer 7. When the cable is slightly deformed due to gnawing, the triangular elastic buffer layer 6 can provide more uniform support, and the deformation range of the triangular elastic buffer layer 6 is a cavity, so that the armor layer 7 can have more deformation areas when bitten and is not easily penetrated. Even if the rodent tooth tip penetrates the armor layer 7, the elastic buffer layer 6 can also play an anti-penetration effect, effectively reducing the impact of rodent gnawing on the normal use of the cable.

[0021] As a preferred solution, a cushion layer 5 is further provided between the elastic buffer layer 6 and the tape layer 4, and between the elastic buffer layer 6 and the armor layer 7. The cushion layer 5 plays a good role of isolation and support.

[0022] As a preferred embodiment, the multiple core wires include a circular core wire 9 arranged in the middle, and the cross-sections of the remaining core wires are fan-shaped arrays with chamfers opened on the periphery of the circular core wire 9; fillers are arranged between the insulating layers 2 and between the insulating layers 2 and the wrapping tape.

[0023] On the one hand, the overall structure is more compact, the space utilization rate is higher, and the gaps between the core wires are reduced; on the other hand, the fan-shaped surrounding circular layout structure is more stable, better resisting mechanical stress such as bending and twisting, and reducing use damage. The addition of fillers prevents the core wires from moving relative to each other when the cable is bent or stressed, maintaining the stability of the internal structure of the cable and reducing signal interference.

[0024] As a preferred solution, the armor layer 7 is formed by braiding non-magnetic metal strips. The non-magnetic metal braided layer provides strong mechanical protection for the cable, and can effectively resist external impact, extrusion, trampling, and physical damage that may be encountered during laying and use. It is particularly suitable for direct underground burial, frequent dragging, or places with the risk of heavy object extrusion. The braided structure has better flexibility to prevent breakage caused by gnawing.

[0025] As a preferred solution, the insulating layer 2 and the sheath 8 are both polyvinyl chloride layers. The insulating layer 2 is made of polyvinyl chloride, which has better insulation effect and good stability; the sheath 8 is made of polyvinyl chloride, which has good protection effect.

[0026] As a preferred solution, the elastic buffer layer 6 is a rubber layer. The high elasticity of rubber enables it to effectively absorb and disperse external mechanical shocks and vibrations, reduce the damage of these factors to the internal structure of the cable, and protect the core conductor 1 and the insulation layer 2 of the cable.

[0027] The utility model is described in detail above. The description of the specific embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A bite-proof power cable, characterized in that: include A plurality of conductors (1), wherein insulating layers (2) are respectively arranged outside the plurality of conductors (1) to form a plurality of core wires, and a tape layer (4) is arranged outside the plurality of core wires, and the tape layer (4) wraps the plurality of core wires; An armor layer (7), wherein the armor layer (7) is arranged outside the tape layer (4), and an elastic buffer layer (6) is arranged between the armor layer (7) and the tape layer (4), and the cross section of the elastic buffer layer (6) is a first-connected triangular structure; A sheath (8) is arranged outside the armor layer (7).

2. The anti-bite power cable according to claim 1, characterized in that: A cushion layer (5) is also provided between the elastic buffer layer (6) and the tape layer (4), and between the elastic buffer layer (6) and the armor layer (7).

3. The anti-bite power cable according to claim 1, characterized in that: The plurality of core wires include a circular core wire (9) arranged in the middle, and the cross sections of the remaining core wires are fan-shaped arrays with chamfers formed on the periphery of the circular core wire (9).

4. The anti-bite power cable according to claim 3, characterized in that: Fillers are provided between the insulating layers (2) and between the insulating layers (2) and the wrapping tape.

5. The anti-bite power cable according to claim 1, characterized in that: The armor layer (7) is formed by weaving non-magnetic metal strips.

6. The anti-bite power cable according to claim 1, characterized in that: The insulating layer (2) and the sheath (8) are both polyvinyl chloride layers.

7. The anti-bite power cable according to claim 1, characterized in that: The elastic buffer layer (6) is a rubber layer.

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