Cable formed based on anti-sinking extrusion molding process

Abstract

The utility model provides a cable based on anti-recess extrusion molding process molding, including oversheath, wrapping tape, packing layer, insulating layer and copper conductor, wrapping tape is provided inside oversheath, packing layer is provided inside the wrapping tape, insulating layer is provided inside the packing layer, copper conductor is provided inside the insulating layer, the copper conductor is provided inside the insulating layer, and the copper conductor is provided inside the outer sheath. A wrapping tape is arranged on the outer side wall of the outer sheath, an armor layer is arranged in the outer sheath and located between the outer sheath and the wrapping tape, a compression-resistant protection layer is arranged in the armor layer and located between the armor layer and the wrapping tape, the outer side wall of the outer sheath is coated with an epoxy resin coating, and through the compression-resistant protection layer, the armor layer and the epoxy resin coating, the compression resistance of the outer sheath is improved. The strength, the anti-pressure capability and the corrosion resistance of the cable can be remarkably improved, so that the cable can effectively resist external pressure, and the cable is prevented from being deformed or damaged due to extrusion.

Description

Technical Field

[0001] The utility model relates to the field of cables, in particular to a cable formed based on an anti-sag extrusion process. Background Art

[0002] The anti-sag extrusion process is a manufacturing process specifically used to improve the mechanical strength and compressive resistance of cables. This process performs special treatment on the cables during the extrusion process to enable them to better resist external pressure and prevent dents or deformation.

[0003] The known Chinese public authorized utility model CN216450420U discloses a pull-resistant cable, which relates to the field of cables and includes an outer sheath, an elastic sheath, an inner sheath, a placement groove, and a pressure-resistant frame. The inner middle part of the outer sheath is sleeved with an elastic sheath, and the inner middle part of the elastic sheath is sleeved with an inner sheath. The inner middle part of the inner sheath is provided with three cable holes, and cables are placed inside the three cable holes. The inner middle part of the inner sheath is provided with a placement groove near the inner side of the cable hole, and a triangular-shaped pressure-resistant frame is placed inside the placement groove. This type of cable effectively avoids cable rupture and damage through the provision of an elastic sheath and an elastic rubber block, prevents the internal cable core from leaking out and rubbing against the ground, and achieves a good pull-resistant protection effect. At the same time, the pressure-resistant performance of the inner sheath is effectively improved by the provision of a pressure-resistant frame composed of a support rod and a pressure-resistant plate, thereby preventing the internal cable core from being stepped on and deformed during construction by construction workers accidentally stepping on the cable.

[0004] However, in the implementation of relevant technologies, it was found that the above solution has the following problems: poor pressure resistance and insufficient strength. Since the pressure-resistant frame is made of soft rubber material, it is easy to deform or bend due to insufficient strength during use, which will affect the use effect of the cable. Utility Model Content

[0005] In order to solve the above problems, the present invention proposes a cable formed based on an anti-sag extrusion process to solve the above problems in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides a cable formed based on an anti-sag extrusion process, including an outer sheath, a wrapping tape, a filling layer, an insulating layer and a copper conductor, the wrapping tape is arranged inside the outer sheath, the filling layer is arranged on the inner side of the wrapping tape, the insulating layer is arranged inside the filling layer, the copper conductor is arranged inside the insulating layer, an armor layer is arranged inside the outer sheath, and the armor layer is located between the outer sheath and the wrapping tape, a pressure-resistant protective layer is arranged inside the armor layer, and the pressure-resistant protective layer is located between the armor layer and the wrapping tape, and the outer wall of the outer sheath is coated with an epoxy resin coating.

[0007] Furthermore, the compression-resistant protective layer is glass fiber reinforced plastic.

[0008] Furthermore, a protective layer is provided inside the compression-resistant protective layer, and the protective layer is located between the compression-resistant protective layer and the wrapping tape.

[0009] Furthermore, the protective layer is composed of copper wires that are wound around each other.

[0010] Furthermore, a heat insulation layer is provided on the inner side of the protective layer, and the heat insulation layer is located between the protective layer and the wrapping tape.

[0011] Furthermore, the heat insulation layer is a component made of glass wool.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The compressive sheath, armor layer and epoxy resin coating can significantly improve the strength, compressive resistance and corrosion resistance of the cable, so that the cable can effectively resist external pressure and prevent the cable from being squeezed, deformed or damaged.

[0014] The protective layer and the thermal insulation layer can not only reduce electromagnetic interference and improve signal transmission quality, but also isolate the external temperature from the copper conductor, thereby improving the thermal insulation effect of the cable.

[0015] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a schematic cross-sectional structural diagram of the present utility model;

[0018] Figure 3 This is a schematic structural diagram of the compression-resistant protective layer in the utility model;

[0019] Figure 4 It is a structural diagram of the protective layer in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the epoxy resin coating in the utility model.

[0021] In the figure: 1. Outer sheath; 2. Wrapping tape; 3. Filling layer; 4. Insulation layer; 5. Copper conductor; 6. Armor layer; 7. Compression-resistant sheath; 8. Protective layer; 9. Thermal insulation layer; 10. Epoxy resin coating. DETAILED DESCRIPTION

[0022] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0023] Reference Figure 1-5 As shown, the cable formed based on the anti-sag extrusion process includes an outer sheath 1, a wrapping tape 2, a filling layer 3, an insulating layer 4 and a copper conductor 5. The wrapping tape 2 is arranged inside the outer sheath 1, the filling layer 3 is arranged on the inner side of the wrapping tape 2, the insulating layer 4 is arranged inside the filling layer 3, and the copper conductor 5 is arranged inside the insulating layer 4. An armor layer 6 is arranged inside the outer sheath 1, and the armor layer 6 is located between the outer sheath 1 and the wrapping tape 2. A pressure-resistant protective layer 7 is arranged inside the armor layer 6, and the pressure-resistant protective layer 7 is located between the armor layer 6 and the wrapping tape 2. The pressure-resistant protective layer 7 is glass fiber reinforced plastic, and the outer wall of the outer sheath 1 is coated with an epoxy resin coating 10.

[0024] The present invention provides a technical solution that can enhance the strength and corrosion resistance of the cable through the armor layer 6 and the pressure-resistant protective layer 7, so that the cable can effectively resist external pressure and prevent the cable from being squeezed, deformed or damaged. The epoxy resin coating 10 applied to the outer wall of the outer sheath 1 can further improve the pressure resistance of the cable. At the same time, the cable also has excellent wear resistance, corrosion resistance and insulation performance, which can effectively prevent current leakage between the cable and the soil or other media, thereby improving the safety of the power system.

[0025] Preferably, a protective layer 8 is provided inside the compression-resistant protective layer 7 , and the protective layer 8 is located between the compression-resistant protective layer 7 and the wrapping tape 2 , and the protective layer 8 is composed of copper wires wound around each other.

[0026] Specifically, the protective layer 8 can effectively reduce electromagnetic interference and improve signal transmission quality.

[0027] Preferably, a heat insulating layer 9 is provided on the inner side of the protective layer 8 , and the heat insulating layer 9 is located between the protective layer 8 and the wrapping tape 2 , and the heat insulating layer 9 is a component made of glass wool.

[0028] Specifically, the heat insulating layer 9 can isolate the external temperature from the copper conductor 5, thereby improving the heat insulating effect of the cable and preventing the cable from aging due to the influence of temperature.

[0029] The above disclosure is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A cable formed by an anti-sag extrusion process, comprising an outer sheath (1), a wrapping tape (2), a filling layer (3), an insulating layer (4) and a copper conductor (5), characterized in that: The wrapping tape (2) is arranged inside the outer sheath (1), the filling layer (3) is arranged on the inner side of the wrapping tape (2), the insulating layer (4) is arranged inside the filling layer (3), and the copper conductor (5) is arranged inside the insulating layer (4); An armor layer (6) is provided inside the outer sheath (1), and the armor layer (6) is located between the outer sheath (1) and the wrapping tape (2); A compression-resistant protective layer (7) is provided inside the armor layer (6), and the compression-resistant protective layer (7) is located between the armor layer (6) and the wrapping tape (2); An epoxy resin coating (10) is applied on the outer side wall of the outer sheath (1).

2. The cable formed by the anti-sag extrusion process according to claim 1, characterized in that: The compression-resistant protective layer (7) is glass fiber reinforced plastic.

3. The cable formed by the anti-sag extrusion process according to claim 1, characterized in that: A protective layer (8) is provided inside the compression-resistant protective layer (7), and the protective layer (8) is located between the compression-resistant protective layer (7) and the wrapping tape (2).

4. The cable formed by the anti-sag extrusion process according to claim 3, characterized in that: The protective layer (8) is composed of copper wires that are twisted together.

5. The cable formed by the anti-sag extrusion process according to claim 4, characterized in that: A heat insulation layer (9) is provided on the inner side of the protective layer (8), and the heat insulation layer (9) is located between the protective layer (8) and the wrapping tape (2).

6. The cable formed by the anti-sag extrusion process according to claim 5, characterized in that: The heat insulation layer (9) is a component made of glass wool.

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