Insect and mouse prevention cable

Abstract

The utility model discloses an insect-proof and rat-proof cable, which comprises wire cores, wire core sleeves arranged on the outer sides of the wire cores, and filling layers arranged between the adjacent wire cores; the inner insulation protection layer is arranged on the outer side of the filling layer; the first steel belt protection layer is arranged on the outer side of the inner insulation protection layer and comprises a plurality of first net-shaped small holes, and the first net-shaped small holes are filled with drugs; the fireproof protection layer is arranged on the outer side of the first steel belt protection layer; the second steel belt protection layer is arranged on the outer side of the fireproof protection layer and comprises a plurality of second net-shaped small holes, and the second net-shaped small holes are filled with drugs; the diameter of the second net-shaped small holes is larger than that of the first net-shaped small holes, and protection of insects and mice can be achieved through the two steel belt protection layers and the filled medicine.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power, in particular to an insect-proof and rodent-proof cable. Background Art

[0002] Wires and cables are essential infrastructure for transmitting energy and information. In existing technology, cables are buried deep underground, making them vulnerable to damage from insects and rodents. Furthermore, deep underground cables are difficult to inspect and maintain regularly. Damage to the cables can cause local short circuits and power outages at best, or even paralyze communications and power transmission functions in parts of a city, potentially leading to significant losses for the nation. Therefore, the present invention provides an insect- and rodent-resistant cable. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an insect-proof cable, which can protect against insects and rodents through two steel belt protective layers and filled medicines.

[0004] The utility model adopts the following technical solutions:

[0005] Disclosed is an insect-proof and rodent-proof cable, comprising: a wire core having a wire core sleeve on the outside and a filling layer between adjacent wire cores; an inner insulating protective layer arranged on the outside of the filling layer; a first steel belt protective layer arranged on the outside of the inner insulating protective layer and comprising a plurality of first mesh holes, wherein the first mesh holes are filled with medicine; a fireproof protective layer arranged on the outside of the first steel belt protective layer; and a second steel belt protective layer arranged on the outside of the fireproof protective layer and comprising a plurality of second mesh holes, wherein the second mesh holes are filled with medicine; the diameter of the second mesh holes is larger than that of the first mesh holes.

[0006] Preferably, the second steel strip protective layer includes a second outer layer.

[0007] Preferably, the second steel belt protective layer further includes a second inner layer and a second steel belt layer located between the second inner layer and the second outer layer, and the second steel belt layer is provided with a plurality of second mesh holes.

[0008] Preferably, the first steel belt protective layer includes a first inner layer, a first outer layer and a first steel belt layer located between the first inner layer and the first outer layer, and the first steel belt layer is provided with a plurality of first mesh-shaped small holes.

[0009] Preferably, the first steel belt layer is a metal braided layer woven from steel wires.

[0010] Preferably, an outer insulating protective layer is provided between the fireproof protective layer and the second steel strip protective layer.

[0011] Preferably, the outer insulating protective layer is a foamed high-density polyethylene layer.

[0012] Preferably, the filling layer is made of highly flame-retardant polyethylene, highly flame-retardant ethylene, highly flame-retardant polyvinyl chloride or aluminum foil Mylar material.

[0013] Preferably, the inner insulating protective layer is made of fluororubber.

[0014] Preferably, the fireproof protective layer is asbestos fiber cloth.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. The utility model provides an insect-proof and rodent-proof cable, comprising a wire core, an inner insulating protective layer, a first steel belt protective layer, a fireproof protective layer, and a second steel belt protective layer. The cable has two steel belt protective layers and medicines filled on the steel belt protective layers, which can provide protection against insects and rodents.

[0017] 2. The mesh holes in the first steel belt protective layer are smaller than those in the second steel belt protective layer, providing dual protection for the cable. If the drugs on the outer second steel belt protective layer fall or are damaged, they can still be protected by the first steel belt protective layer. In addition, the mesh holes in the first steel belt protective layer are smaller, so even if the second steel belt protective layer is damaged by mice or other factors, the mice cannot penetrate the mesh holes of the first steel belt protective layer to damage its internal structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A cross-sectional view of an insect-proof cable.

[0019] Figure 2 Schematic diagram of the structure of the first steel belt layer.

[0020] Figure 3 Schematic diagram of the structure of the first steel strip protective layer.

[0021] Figure 4 Schematic diagram of the structure of the second steel belt layer.

[0022] Figure 5 Schematic diagram of the structure of the second steel belt protective layer.

[0023] In the figure, the wire core 1, the filling layer 1-1, the inner insulating protective layer 2, the first steel strip protective layer 3, the first mesh holes 3-1, the first inner layer 3-2, the first outer layer 3-3, the first steel strip layer 3-4, the fire protection layer 4, the second steel strip protective layer 5, the second mesh holes 5-1, the second inner layer 5-2, the second outer layer 5-3, the second steel strip layer 5-4, and the outer insulating protective layer 6. DETAILED DESCRIPTION

[0024] In order to facilitate understanding of the technical solution of the present utility model, the following is a detailed description with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] like Figure 1 As shown, an insect and rodent proof cable comprises a wire core 1, an inner insulating protective layer 2, a first steel belt protective layer 3, a fireproof protective layer 4, and a second steel belt protective layer 5;

[0027] The wire core 1 has a wire core sleeve on the outside and a filling layer 1-1 between adjacent wire cores;

[0028] The inner insulating protective layer 2 is arranged outside the filling layer 1-1;

[0029] The first steel strip protective layer 3 is arranged outside the inner insulating protective layer 2 and includes a plurality of first mesh holes 3-1, and the first mesh holes 3-1 are filled with medicine;

[0030] The fire protection layer 4 is arranged outside the first steel belt protection layer 3;

[0031] The second steel belt protective layer 5 is arranged outside the fire protection layer 4 and includes a plurality of second mesh holes 5-1, and the second mesh holes 5-1 are filled with medicine;

[0032] The diameter of the second mesh-like pores 5 - 1 is larger than that of the first mesh-like pores 3 - 1 .

[0033] During operation, the first mesh holes 3-1 on the first steel belt protective layer 3 are sealed by the inner insulating protective layer 2 and the fireproof protective layer 4 to prevent the medicine in the first mesh holes 3-1 from moving or falling out; in addition, a second outer layer 5-3 can be provided on the outside of the second steel belt protective layer 5, and the fireproof protective layer 4 and the second outer layer 5-3 cooperate to prevent the medicine in the second mesh holes 5-1 from moving or falling out.

[0034] When placing medicines, medicines of different sizes can be placed according to the sizes of the first mesh holes 3-1 and the second mesh holes 5-1. The medicines can emit odors to repel insects and rats or have a harmful effect on insects and rats. How to set the size of the medicines is a conventional technical means for those skilled in the art, so it will not be described in detail.

[0035] In addition, the medicine can be placed in the first mesh hole 3-1 (the size of the medicine is slightly smaller than the first mesh hole), or it can be embedded in the first mesh hole 3-1 (the size of the medicine is the same as the first mesh hole). The way to set the medicine on the second mesh hole 5-1 is the same as that of the first mesh hole 3-1.

[0036] like Figure 4-5 As shown, as an embodiment, the second steel belt protective layer 5 further includes a second inner layer 5-2 and a second steel belt layer 5-4 located between the second inner layer 5-2 and the second outer layer 5-3, and a plurality of second mesh holes 5-1 are provided on the second steel belt layer 5-4.

[0037] like Figure 2-3 As shown, as an embodiment, the first steel belt protective layer 3 includes a first inner layer 3-2, a first outer layer 3-3 and a first steel belt layer 3-4 located between the first inner layer 3-2 and the first outer layer 3-3, and a plurality of first mesh holes 3-1 are provided on the first steel belt layer 3-4.

[0038] The first steel belt layer 3 - 4 and the second steel belt layer 5 - 4 may be metal braided layers woven from steel wires, which may increase the tensile strength of the steel cable and extend the service life of the steel cable.

[0039] As an embodiment, an outer insulating protective layer 6 is provided between the fireproof protective layer 4 and the second steel belt protective layer 5. The outer insulating protective layer 6 is a foamed high-density polyethylene layer. The foamed outer insulating protective layer can have a lower dielectric constant. The foaming ratio of the foamed outer insulating protective layer ranges from 10% to 30%. By adjusting the foaming ratio, the relative dielectric constant required for different communications can be obtained.

[0040] As an embodiment, the material of the filling layer 1-1 is highly flame-retardant polyethylene, highly flame-retardant ethylene or highly flame-retardant polyvinyl chloride, which can play a flame-retardant role; or the filling layer is aluminum foil Mylar material, which can effectively isolate air, water vapor and other gases to prevent them from corroding and affecting electrical equipment.

[0041] As an embodiment, the inner insulating protective layer 2 is made of fluororubber, which can achieve insulation while withstanding higher temperatures; specifically, a 26-41 type fluororubber layer can be used. Fluororubber has a strong ability to withstand high temperatures, and the 26-41 type fluororubber can be used for a long time at 250°C.

[0042] As an embodiment, the fireproof protective layer 4 is asbestos fiber cloth, which plays a basic fireproof effect; the thickness of the fireproof protective layer is 0.8 to 1.3 mm. The thickness of the fireproof protective layer meets the requirements of heat insulation and flame retardancy, and does not affect the bending of the fireproof protective layer.

[0043] The above are only preferred embodiments of the present invention. The scope of protection of the present invention shall be based on the scope defined by the claims. Several improvements and modifications made by those skilled in the art without departing from the spirit and scope of the present invention shall also be regarded as the scope of protection of the present invention.

Claims

1. An insect-proof cable, characterized in that: include: A wire core (1) having a wire core sleeve on the outside and a filling layer (1-1) between adjacent wire cores; An inner insulating protective layer (2) is arranged outside the filling layer (1-1); A first steel strip protective layer (3) is arranged outside the inner insulating protective layer (2), and comprises a plurality of first mesh holes (3-1), wherein the first mesh holes (3-1) are filled with medicine; A fireproof protective layer (4) is provided on the outside of the first steel belt protective layer (3); A second steel strip protective layer (5) is arranged outside the fire protection layer (4) and includes a plurality of second mesh holes (5-1), wherein the second mesh holes (5-1) are filled with medicine; The diameter of the second mesh-shaped pores (5-1) is larger than that of the first mesh-shaped pores (3-1).

2. The insect-proof and rodent-proof cable according to claim 1, characterized in that: The second steel strip protective layer (5) comprises a second outer layer (5-3).

3. The insect-proof and rodent-proof cable according to claim 2, characterized in that: The second steel strip protective layer (5) further comprises a second inner layer (5-2) and a second steel strip layer (5-4) located between the second inner layer (5-2) and the second outer layer (5-3); the second steel strip layer (5-4) is provided with a plurality of second mesh-shaped small holes (5-1).

4. The insect-proof and rodent-proof cable according to claim 1, characterized in that: The first steel strip protective layer (3) comprises a first inner layer (3-2), a first outer layer (3-3), and a first steel strip layer (3-4) located between the first inner layer (3-2) and the first outer layer (3-3), wherein the first steel strip layer (3-4) is provided with a plurality of first mesh-shaped small holes (3-1).

5. The insect-proof and rodent-proof cable according to claim 4, characterized in that: The first steel belt layer (3-4) is a metal braided layer woven from steel wires.

6. The insect-proof and rodent-proof cable according to claim 1, characterized in that: An outer insulating protective layer (6) is provided between the fireproof protective layer (4) and the second steel strip protective layer (5).

7. The insect-proof and rodent-proof cable according to claim 6, characterized in that: The outer insulating protective layer (6) is a foamed high-density polyethylene layer.

8. The insect-proof and rodent-proof cable according to claim 1, characterized in that: The filling layer (1-1) is made of highly flame-retardant polyethylene, highly flame-retardant ethylene, highly flame-retardant polyvinyl chloride or aluminum foil Mylar material.

9. The insect-proof and rodent-proof cable according to claim 1, characterized in that: The inner insulating protective layer (2) is made of fluororubber.

10. The insect-proof and rodent-proof cable according to claim 1, characterized in that: The fireproof protective layer (4) is asbestos fiber cloth.

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