Crosslinked polyethylene insulated wire cable

Abstract

The utility model discloses a cross-linked polyethylene insulated wire cable, which comprises a filling layer, the inner wall of the filling layer is connected with a reinforcing structure, the reinforcing structure comprises a support body, an insulating layer and a conductor, the outer wall of the support body is fixedly connected with the inner wall of the filling layer, the outer wall of the support body abuts against the inner wall of the insulating layer at equal intervals, and the conductor is arranged on the inner wall of the insulating layer. According to the cross-linked polyethylene insulated wire cable, the inner side of the insulating layer is supported through the hemp rope material of the supporting body in the reinforcing structure, the situation that the insulating layer is deformed and wrinkled due to the fact that the cable is bent for a long time is prevented, the service life is prolonged, the practicability is improved, and the cross-linked polyethylene insulated wire cable meets the use requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of wires and cables, in particular to a cross-linked polyethylene insulated wire and cable. Background Art

[0002] Cross-linked polyethylene insulated wire and cable is a type of cable suitable for use in distribution networks and other fields. It has advantages that PVC insulated cables cannot match. Existing cross-linked polyethylene insulated wire and cable have no support inside the cable when in use, and the insulation layer is directly attached. It is easy to deform and wrinkle after being bent for a long time, which shortens the service life and reduces practicality. Summary of the invention

[0003] The purpose of the utility model is to provide a cross-linked polyethylene insulated wire and cable to solve the problem that the existing cross-linked polyethylene insulated wire and cable proposed in the above background technology has no support inside the cable when in use, the insulating layer is directly attached, it is easy to deform and wrinkle after bending for a long time, which shortens the service life and reduces the practicality.

[0004] To achieve the above object, the utility model provides the following technical solution: a cross-linked polyethylene insulated wire and cable, comprising a filling layer, wherein the inner wall of the filling layer is connected to a reinforcement structure;

[0005] The reinforcement structure comprises a support body, an insulating layer and a conductor;

[0006] The outer wall of the support body is fixedly connected to the inner wall of the filling layer, the outer wall of the support body is equidistantly pressed against the inner wall of the insulating layer, and the inner wall of the insulating layer is wrapped and connected with the outer wall of the conductor.

[0007] Preferably, the outer wall of the filling layer is wrapped and connected with a wrapping layer.

[0008] Preferably, the outer wall of the wrapping layer is wound and connected with an inner lining layer.

[0009] Preferably, the outer wall of the inner lining layer is wound and connected with a thickening layer.

[0010] Preferably, the outer wall of the thickened layer is wrapped and connected with an armor layer.

[0011] Compared with the prior art, the beneficial effect of the utility model is that the cross-linked polyethylene insulated wire and cable supports the inner side of the insulation layer through the hemp rope material of the support body itself in the reinforcement structure, preventing the insulation layer from being deformed and wrinkled due to long-term bending of the cable, thereby extending the service life, improving practicality, and meeting usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2for Figure 1 The structural diagram of A in the figure;

[0014] Figure 3 for Figure 1 A schematic diagram of the structure of the connection relationship between the insulating layer, the conductor and the support body;

[0015] Figure 4 for Figure 3 Schematic diagram of the structure of B.

[0016] In the figure: 1. filling layer, 2. reinforcement structure, 201. support body, 202. insulation layer, 203. conductor, 3. wrapping layer, 4. lining layer, 5. thickening layer, 6. armor layer, 7. sheath, 8. protection belt. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4 The utility model provides a technical solution: a cross-linked polyethylene insulated wire and cable, comprising a filling layer 1, the filling layer 1 is made of aramid, the inner wall of the filling layer 1 is connected with a reinforcement structure 2, the reinforcement structure 2 comprises a support body 201, an insulating layer 202 and a conductor 203, the outer wall of the support body 201 is fixedly connected to the inner wall of the filling layer 1, the support body 201 is made of hemp rope, the outer wall of the support body 201 is equidistantly pressed against the inner wall of the insulating layer 202, the insulating layer 202 is made of rubber, the inner wall of the insulating layer 202 is wrapped and connected with the outer wall of the conductor 203, the conductor 203 is made of copper, the inner side of the insulating layer 202 is supported by the hemp rope material of the support body 201 itself in the reinforcement structure 2, so as to prevent the insulating layer 202 from being deformed and wrinkled due to long-term bending of the cable, thereby extending the service life, improving the practicality and meeting the use requirements.

[0019] The outer wall of the filling layer 1 is connected with a wrapping layer 3, which is made of PVC. The outer wall of the wrapping layer 3 is connected with an inner lining layer 4, and the outer wall of the inner lining layer 4 is connected with a thickening layer 5. Both the inner lining layer 4 and the thickening layer 5 are made of polyethylene. The outer wall of the thickening layer 5 is connected with an armor layer 6, which is made of steel wire. The outer wall of the armor layer 6 is connected with a sheath 7, which is made of polyethylene. The outer wall of the sheath 7 is equidistantly welded to the inner side of a protective belt 8, which is made of rubber. The protective belt 8 is made of rubber itself, so that when the cable is pulled, the protective belt 8 forms an isolation between the cable and the connection surface to prevent the cable surface from being worn, which is convenient for promotion and use.

[0020] In this example, when the cable is used, the insulating layer 202 in the reinforcement structure 2 insulates the internal conductor 203 through its own rubber material to prevent conduction. At the same time, the support body 201 in the reinforcement structure 2 supports the inner side of the insulating layer 202 through its own hemp rope material to prevent the insulating layer 202 from deforming and wrinkling due to long-term bending of the cable. The filling layer 1 on the outer wall of the insulating layer 202 ensures the roundness of the cable through its own aramid material, and the wrapping layer 3 on the outer wall of the filling layer 1 plays a flame retardant role through its own PVC material. , to prevent the fire from spreading after the cable is ignited. The inner lining layer 4 on the outer wall of the sheath 3 protects the sheath 3 through its own polyethylene material. The thickened layer 5 on the outer wall of the inner lining layer 4 thickens the inner lining layer 4 through its own polyethylene material, thereby improving the protection performance and preventing the armor layer 6 from wearing the inner lining layer 4. The armor layer 6 can prevent the cable from being damaged by external mechanical forces through its own steel wire armor. The sheath 7 on the outer wall of the armor layer 6 protects the cable as a whole through its own polyethylene material. The protective belt 8 on the outer wall of the sheath 7 can prevent the cable surface from being worn.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cross-linked polyethylene insulated wire and cable, comprising a filling layer (1), characterized in that: The inner wall of the filling layer (1) is connected to a reinforcement structure (2); The reinforcement structure (2) comprises a support body (201), an insulating layer (202) and a conductor (203); The outer wall of the support body (201) is fixedly connected to the inner wall of the filling layer (1), the outer wall of the support body (201) is equidistantly pressed against the inner wall of the insulating layer (202), and the inner wall of the insulating layer (202) is wrapped and connected with the outer wall of the conductor (203).

2. A cross-linked polyethylene insulated wire and cable according to claim 1, characterized in that: The outer wall of the filling layer (1) is wrapped and connected with a wrapping layer (3).

3. A cross-linked polyethylene insulated wire and cable according to claim 2, characterized in that: The outer wall of the wrapping layer (3) is wound and connected with an inner lining layer (4).

4. A cross-linked polyethylene insulated wire and cable according to claim 3, characterized in that: The outer wall of the inner lining layer (4) is wound and connected with a thickening layer (5).

5. A cross-linked polyethylene insulated wire and cable according to claim 4, characterized in that: The outer wall of the thickened layer (5) is wrapped and connected with an armor layer (6).

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