A three-layer insulated wire with abrasion-resistant surface

Abstract

The utility model discloses a three-layer insulated wire with a wear-resistant surface, and relates to the technical field of insulated wires. The three-layer insulated wire with a wear-resistant surface comprises an insulating layer, a polyamide film is fixedly installed on the outer side of the insulating layer, an adhesive interlayer is fixedly installed on the outer side of the polyamide film, a waterproof layer is fixedly installed on the outer side of the adhesive interlayer, a glass fiber layer is fixedly installed on the outer side of the waterproof layer, and a detailed distinction is made by the adhesive interlayer and a first support bar. The adhesive interlayer is an aerogel material with a good adhesion effect. The insulating layer is separated from the external space by the adhesive interlayer, which is convenient for fast fixed connection of multiple layers. At the same time, the adhesive interlayer is a gear ring design, which is fixedly connected to the surface of the adhesive interlayer, and has an anti-penetration effect on the insulating layer. The external protection is strengthened by the waterproof layer and the glass fiber layer, and the strength of the insulating layer is increased by the multi-layer design.

Description

Technical Field

[0001] The utility model relates to the technical field of insulated wires, in particular to a three-layer insulated wire with a wear-resistant surface. Background Art

[0002] Insulated wire is a layer of non-conductive insulating material evenly and tightly wrapped around the outside of the conductor. The insulating material can ensure the safe use of the cable. In order to adapt to different usage environments, some insulated wires are generally compounded with other functional layers, such as thermal insulation layer, fire-resistant layer, etc.

[0003] At present, the existing insulated wire (such as patent number: CN213339750U) discloses a multi-core insulated wire, which is provided with a rotating block. The rotating block rotates by the wind blowing the blades, and can operate to break ice on the surface of the conduit. After the surface of the insulating wire is frozen, compared with the previous manual knocking to break ice, using the rotating block to break ice is safer and more convenient to use, especially when working at heights, the risk is lower.

[0004] However, in the process of implementing the above technical solutions, it was found that at least the following technical problems exist: most of the insulated wires are designed with three layers. The surface of the insulated wires is easily damaged during the winding installation process, or when it is squeezed by external force, resulting in a decrease in the voltage resistance of the insulated wires, which can easily expose or break the internal wire core, causing the insulated wire to fail. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a three-layer insulated wire with a wear-resistant surface, which solves the problem that most insulated wires are designed with three layers, and the surface of the insulated wire is easily damaged during the winding and installation process, or when it is squeezed by external force, resulting in a decrease in the withstand voltage of the insulated wire, and the internal wire core is easily exposed or broken, causing the insulated wire to fail.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A three-layer insulated wire with a wear-resistant surface comprises an insulating layer, a polyamide film is fixedly installed on the outer side of the insulating layer, an adhesive interlayer is fixedly installed on the outer side of the polyamide film, a waterproof layer is fixedly installed on the outer side of the adhesive interlayer, and a glass fiber layer is fixedly installed on the outer side of the waterproof layer.

[0010] Preferably: at least two second support bars are fixedly installed inside the waterproof layer, at least two first support bars are fixedly installed on the surface of the adhesive interlayer, at least two third support bars are fixedly installed inside the insulating layer, at least two wire core bodies are fixedly installed inside the insulating layer, and the insulating layer and the adhesive interlayer are both a composite material.

[0011] (III) Beneficial effects

[0012] 1. At the same time, a waterproof layer and a glass fiber layer are installed on the outside of the adhesive interlayer, and a plurality of second support bars are arranged and installed inside the waterproof layer. The second support bar is a cylindrical design, which is distributed inside the waterproof layer and plays a role of limiting support for the waterproof layer. Together with the first support bar, the insulating layer itself has a higher strength to prevent excessive bending of the insulating layer during movement and transportation, which may cause wear of the insulating layer and the wire core body.

[0013] 2. The adhesive interlayer and the first support strip are used for detailed distinction. The adhesive interlayer is an aerogel material with good adhesion effect. The insulating layer is separated from the external space by the adhesive interlayer, which is convenient for fast fixed connection of multiple layers. At the same time, the adhesive interlayer is a gear ring design, which is fixedly connected to the surface of the adhesive interlayer, and has an anti-penetration effect on the insulating layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0015] Figure 1 This is a structural diagram of the insulating layer of the utility model;

[0016] Figure 2 This is a structural diagram of the waterproof layer of the utility model;

[0017] Figure 3 This is a structural diagram of the support bar of the utility model;

[0018] Figure 4 It is a structural diagram of the wire core body of the utility model.

[0019] Legend: 1. Insulating layer; 11. Polyamide film; 12. Adhesive interlayer; 14. Waterproof layer; 15. Glass fiber layer; 16. First support bar; 17. Second support bar; 18. Wire core body; 19. Third support bar. DETAILED DESCRIPTION

[0020] The embodiment of the present application provides a three-layer insulated wire with a wear-resistant surface, which effectively solves the problem that most insulated wires are designed with three layers. The surface of the insulated wire is easily damaged during the winding and installation process, or when it is squeezed by external force, resulting in a decrease in the voltage resistance of the insulated wire, which can easily expose or break the internal wire core, causing the insulated wire to fail. At the same time, a waterproof layer and a glass fiber layer are installed on the outside of the adhesive interlayer, and a plurality of second support bars are arranged and installed inside the waterproof layer. The second support bar is a cylindrical design and is distributed inside the waterproof layer. It plays a role of limiting and supporting the waterproof layer. Together with the first support bar, the insulating layer itself has a higher strength to prevent excessive bending of the insulating layer during movement and transportation, which causes wear of the insulating layer and the wire core body.

[0021] Example

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that the insulated wire is mostly designed with three layers, and the surface of the insulated wire is easily damaged during the winding installation process or when it is squeezed by external force, resulting in a decrease in the withstand voltage of the insulated wire, and the internal wire core is easily exposed or broken, resulting in the failure of the insulated wire. The overall idea is as follows:

[0023] In view of the problems existing in the prior art, the utility model provides a three-layer insulated wire with a wear-resistant surface, comprising an insulating layer 1, a polyamide film 11 is fixedly installed on the outer side of the insulating layer 1, an adhesive interlayer 12 is fixedly installed on the outer side of the polyamide film 11, a waterproof layer 14 is fixedly installed on the outer side of the adhesive interlayer 12, the waterproof layer 14 and a glass fiber layer 15 are installed on the outer side of the adhesive interlayer 12, a plurality of second support bars 17 are arranged and installed inside the waterproof layer 14, the second support bar 17 is a cylindrical design, distributed inside the waterproof layer 14, plays a role of limiting support for the waterproof layer 14, and cooperates with the first support bar 16 to make the insulating layer 1 itself have higher strength, and a glass fiber layer 15 is fixedly installed on the outer side of the waterproof layer 14.

[0024] At least two second support bars 17 are fixedly installed inside the waterproof layer 14, at least two first support bars 16 are fixedly installed on the surface of the adhesive interlayer 12, at least two third support bars 19 are fixedly installed inside the insulating layer 1, and multiple third support bars 19 are additionally installed inside the insulating layer 1, so that the core body 18 and the third support bars 19 are staggered with each other. The third support bar 19 itself is a composite material and runs through the inside of the insulating layer 1. The insulating layer 1 is a polymer material that acts as a partition and protects the internal core body 18. At least two core bodies 18 are fixedly installed inside the insulating layer 1, and the insulating layer 1 and the adhesive interlayer 12 are both a composite material.

[0025] Working principle:

[0026] The first step is to arrange multiple wire core bodies 18 at equal intervals inside the insulating layer 1, and to install multiple third support bars 19 inside the insulating layer 1, so that the wire core bodies 18 and the third support bars 19 are staggered with each other. The third support bar 19 itself is a composite material that runs through the inside of the insulating layer 1. The insulating layer 1 is a polymer material that acts as a partition to protect the internal wire core body 18, so that the current carried by the wire core body 18 will not leak. At the same time, the interlayer 12 and the first support bar 16 are staggered with each other, which is a larger layer. Then, by bonding The interlayer 12 and the first support bar 16 are carefully distinguished. The adhesive interlayer 12 is an aerogel material with good adhesion effect. The insulating layer 1 is separated from the external space by the adhesive interlayer 12 to prevent large fluctuations in the temperature inside the insulating layer 1. At the same time, the adhesive interlayer 12 is a gear ring design, which is fixedly connected to the surface of the adhesive interlayer 12 to prevent the insulating layer 1 from being penetrated. The third support bar 19 is the same as the first support bar 16, both of which are a composite material. The third support bar 19 is fixed together with the first support bar 16 and supports the insulating layer 1 at the same time.

[0027] In the second step, a waterproof layer 14 and a glass fiber layer 15 are installed on the outside of the adhesive interlayer 12. A plurality of second support bars 17 are arranged and installed inside the waterproof layer 14. The second support bars 17 are of a cylindrical design and are distributed inside the waterproof layer 14 to limit and support the waterproof layer 14. Together with the first support bars 16, the insulating layer 1 itself has a high strength to prevent excessive bending of the insulating layer 1 when it is moved and transported. At the same time, the waterproof layer 14 and the glass fiber layer 15 are respectively on the outside. The glass fiber layer 15 is a wear-resistant limiting material. The waterproof layer 14 is an electrostatic protective coating. The waterproof layer 14 and the glass fiber layer 15 are used to strengthen external protection. The strength of the insulating layer 1 is increased through a multi-layer design.

[0028] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A three-layer insulated wire with a wear-resistant surface, comprising an insulating layer (1), characterized in that: A polyamide film (11) is fixedly mounted on the outer side of the insulating layer (1), an adhesive interlayer (12) is fixedly mounted on the outer side of the polyamide film (11), a waterproof layer (14) is fixedly mounted on the outer side of the adhesive interlayer (12), and a glass fiber layer (15) is fixedly mounted on the outer side of the waterproof layer (14); The adhesive interlayer (12) is designed in a gear shape, and the adhesive interlayer (12) and the waterproof layer (14) are connected by bonding.

2. A three-layer insulated wire with a wear-resistant surface as claimed in claim 1, characterized in that: At least two second support bars (17) are fixedly installed inside the waterproof layer (14); The second support bar (17) is fixed inside the waterproof layer (14) by pre-embedding.

3. A three-layer insulated wire with a wear-resistant surface as claimed in claim 1, characterized in that: At least two first support bars (16) are fixedly mounted on the surface of the adhesive sandwich layer (12); The first support bars (16) are arranged at equal distances and installed between the adhesive interlayer (12) and the waterproof layer (14).

4. A three-layer insulated wire with a wear-resistant surface as claimed in claim 1, characterized in that: At least two third support bars (19) are fixedly installed inside the insulating layer (1); The third support bars (19) penetrate the interior of the insulating layer (1), and the third support bars (19) are distributed at equal intervals.

5. A three-layer insulated wire with a wear-resistant surface as claimed in claim 1, characterized in that: At least two wire core bodies (18) are fixedly installed inside the insulating layer (1); Wherein, the second support bar (17) and the wire core body (18) are installed in an interlaced manner.

6. A three-layer insulated wire with a wear-resistant surface as claimed in claim 4, characterized in that: The insulating layer (1) and the adhesive interlayer (12) are both a composite material.

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