Flexible graphite grounding wire with high pressure resistance

Abstract

The utility model discloses a flexible graphite grounding wire with strong pressure resistance, which comprises a plurality of graphite grounding wire bodies and an outer wrapping layer arranged outside the plurality of graphite grounding wire bodies, the plurality of graphite grounding wire bodies are mutually twisted and wound together, an outer pressure-resistant layer is arranged on the inner wall of the outer wrapping layer, and the outer pressure-resistant layer is arranged on the outer wall of the outer wrapping layer. The inner wall of the outer compression-resistant layer is provided with a heat preservation layer, the inner wall of the heat preservation layer is provided with an inner compression-resistant layer, and the inner wall of the inner compression-resistant layer is provided with an insulation protection layer. According to the flexible graphite grounding wire with the high pressure resistance, double pressure resistance of the grounding wire is achieved through the arrangement of the outer pressure-resistant layer and the inner pressure-resistant layer, the pressure resistance of the grounding wire is greatly improved, the heat preservation performance of the grounding wire is further improved through the arrangement of the heat preservation layer, the overall corrosion resistance of the outer wrapping layer is improved through the arrangement of the corrosion-resistant layer, and the wear-resistant layer is arranged, so that the service life of the grounding wire is prolonged. And meanwhile, the overall wear resistance of the outer cladding layer is improved, and the overall service life of the grounding wire is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding wires, in particular to a flexible graphite grounding wire with strong compression resistance. Background Art

[0002] The grounding wire is a line connected to the casing of electrical equipment and other parts to promptly conduct unsafe charges or leakage currents generated by various factors. It can also be called a safe return line. It mainly fixes the double-eye copper nose on the grounding soft copper wire phase to the corresponding position of the power clamp on the grounding rod, and fixes the single-eye copper nose on the grounding wire phase to the grounding clamp or ground pin to form a complete set of grounding wires. Then, in danger, it directly transfers the high voltage to the earth. It is a lifeline to protect our safety, and some grounding wires are used in conjunction with grounding modules and grounding electrodes. There is a flexible graphite grounding wire in the grounding wire, which is mainly composed of corrosion-resistant, rust-free, flexible, high-carbon conductive graphite wire layers. It is a composite conductor with corrosion resistance, stable grounding resistance, high and low temperature resistance and long service life. It has more advantages than traditional grounding wires, but the existing flexible graphite grounding wires still have the following problems: general compressive resistance, easy to be damaged after being compressed, general thermal insulation performance, and the wear resistance and corrosion resistance of the outer layer need to be further improved. Therefore, the utility model proposes a flexible graphite grounding wire with strong compressive resistance to solve the above-mentioned problems. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a flexible graphite grounding wire with strong compression resistance, which solves the problems mentioned in the above background technology.

[0004] To achieve the above objectives, the utility model is implemented through the following technical scheme: a flexible graphite grounding wire with strong pressure resistance, comprising a plurality of graphite grounding wire bodies and an outer sheath arranged outside the plurality of graphite grounding wire bodies, wherein the plurality of graphite grounding wire bodies are twisted and wound together, the inner wall of the outer sheath is provided with an outer pressure-resistant layer, the inner wall of the outer pressure-resistant layer is provided with a thermal insulation layer, the inner wall of the thermal insulation layer is provided with an inner pressure-resistant layer, and the inner wall of the inner pressure-resistant layer is provided with an insulating protective layer.

[0005] Furthermore, the outer cladding layer comprises a substrate layer, a surface of the substrate layer is coated with a corrosion-resistant layer, and a surface of the corrosion-resistant layer is coated with a wear-resistant layer.

[0006] Furthermore, the outer covering layer is made of PVC material.

[0007] Furthermore, the outer pressure-resistant layer is made of polyurethane foam, and the thermal insulation layer is made of glass wool.

[0008] Furthermore, the inner pressure-resistant layer is made of organic rubber, and the insulating protection layer is made of glass fiber.

[0009] Furthermore, the corrosion-resistant layer is an allyl heptanoate coating, and the wear-resistant layer is a poly(p-terephthalyl alcohol) coating. Beneficial Effects

[0010] The utility model provides a flexible graphite grounding wire with strong pressure resistance. Compared with the prior art, it has the following beneficial effects:

[0011] The flexible graphite grounding wire with strong pressure resistance realizes double pressure resistance of the grounding wire by setting an outer pressure-resistant layer and an inner pressure-resistant layer, which greatly improves the pressure resistance of the grounding wire. The thermal insulation performance of the grounding wire is further improved by setting a thermal insulation layer. The corrosion resistance of the entire outer sheath is improved by setting a corrosion-resistant layer. The wear resistance of the entire outer sheath is improved by setting a wear-resistant layer, thereby improving the overall service life of the grounding wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0013] Figure 2 It is a cross-sectional schematic diagram of the overall structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the overall structure of the outer covering layer of the utility model.

[0015] In the figure: 1-graphite grounding wire body, 2-outer covering layer, 21-base material layer, 22-corrosion-resistant layer, 23-wear-resistant layer, 3-outer pressure-resistant layer, 4-thermal insulation layer, 5-inner pressure-resistant layer, 6-insulating protective layer. DETAILED DESCRIPTION

[0016] 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.

[0017] See also Figure 1-3The utility model provides a technical solution: a flexible graphite grounding wire with strong pressure resistance, comprising a plurality of graphite grounding wire bodies 1 and an outer sheath 2 arranged outside the plurality of graphite grounding wire bodies 1, the plurality of graphite grounding wire bodies 1 are twisted and wound together, the inner wall of the outer sheath 2 is provided with an outer pressure-resistant layer 3, the outer pressure-resistant layer 3 is bonded and fixed to the inner wall of the outer sheath 2, the inner wall of the outer pressure-resistant layer 3 is provided with a thermal insulation layer 4, the thermal insulation layer 4 is bonded and fixed to the inner wall of the outer pressure-resistant layer 3, the inner wall of the thermal insulation layer 4 is provided with an inner pressure-resistant layer 5, the inner pressure-resistant layer 5 is bonded and fixed to the inner wall of the thermal insulation layer 4, the inner wall of the inner pressure-resistant layer 5 is provided with an insulating protective layer 6, the insulating protective layer 6 is bonded and fixed to the inner wall of the inner pressure-resistant layer 5.

[0018] In this embodiment, the outer cladding 2 includes a substrate layer 21, the surface of the substrate layer 21 is coated with a corrosion-resistant layer 22, which can improve the corrosion resistance of the outer cladding 2, and the surface of the corrosion-resistant layer 22 is coated with a wear-resistant layer 23, which can improve the wear resistance of the outer cladding 2 and thus extend its service life.

[0019] In this embodiment, the outer sheath 2 is made of PVC material. PVC is a thermoplastic material with the characteristics of corrosion resistance, good insulation performance, and beautiful appearance. It has the advantages of low cost and easy processing and is widely used in the manufacture of cables. The PVC cable sheath is resistant to acid, corrosion and chemicals and can be used in a temperature range of -15°C to 70°C.

[0020] In this embodiment, the outer pressure-resistant layer 3 is made of polyurethane foam. Polyurethane foam is a light and soft material with good pressure resistance and energy absorption performance, which can improve the overall pressure resistance of the grounding wire.

[0021] In this embodiment, the thermal insulation layer 4 is made of glass wool, which is a type of glass fiber and a man-made inorganic fiber. Glass wool is a cotton-like material formed by fiberizing molten glass. Its chemical composition belongs to the glass class and it is an inorganic fiber. It has the advantages of good molding, low bulk density, high thermal conductivity, and good thermal insulation.

[0022] In this embodiment, the inner pressure-resistant layer 5 is made of organic rubber, which is a soft elastic material with high plasticity and good impact resistance. Setting it as the inner pressure-resistant layer 5 can further improve the overall pressure resistance of the grounding wire and achieve double pressure resistance.

[0023] In this embodiment, the insulating protective layer 6 is made of glass fiber. Glass fiber is an inorganic non-metallic material with excellent performance. The advantages are good insulation, strong heat resistance, good corrosion resistance and high mechanical strength.

[0024] In this embodiment, the corrosion-resistant layer 22 is an allyl heptanoate coating. Allyl heptanoate is liquid at room temperature and is a commonly used material for anti-corrosion coatings. It can be directly coated on the surface of the outer layer 2 as a corrosion-resistant coating. The wear-resistant layer 23 is a poly(p-terephthalate) coating. Poly(p-terephthalate) is used as an organic synthesis intermediate and has good wear resistance. It can be directly coated on the surface of the outer layer 2 as a corrosion-resistant coating. After drying, the corrosion-resistant layer 22 is formed, and then the poly(p-terephthalate) coating is coated on the surface of the corrosion-resistant layer 22. After drying, the wear-resistant layer 23 is formed.

[0025] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although the 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 flexible graphite grounding wire with strong pressure resistance, comprising a plurality of graphite grounding wire bodies (1) and an outer covering layer (2) arranged outside the plurality of graphite grounding wire bodies (1), characterized in that: A plurality of graphite grounding wire bodies (1) are twisted together, the inner wall of the outer sheath (2) is provided with an outer pressure-resistant layer (3), the inner wall of the outer pressure-resistant layer (3) is provided with a thermal insulation layer (4), the inner wall of the thermal insulation layer (4) is provided with an inner pressure-resistant layer (5), and the inner wall of the inner pressure-resistant layer (5) is provided with an insulating protective layer (6).

2. The flexible graphite grounding wire with strong compressive resistance according to claim 1, characterized in that: The outer cladding (2) comprises a base material layer (21), the surface of the base material layer (21) is coated with a corrosion-resistant layer (22), and the surface of the corrosion-resistant layer (22) is coated with a wear-resistant layer (23).

3. The flexible graphite grounding wire with strong compressive resistance according to claim 1, characterized in that: The outer covering layer (2) is made of PVC material.

4. The flexible graphite grounding wire with strong compressive resistance according to claim 1, characterized in that: The outer pressure-resistant layer (3) is made of polyurethane foam, and the thermal insulation layer (4) is made of glass wool.

5. The flexible graphite grounding wire with strong compressive resistance according to claim 1, characterized in that: The inner pressure-resistant layer (5) is made of organic rubber, and the insulating protective layer (6) is made of glass fiber.

6. The flexible graphite grounding wire with strong compressive resistance according to claim 2, characterized in that: The corrosion-resistant layer (22) is an allyl heptanoate coating, and the wear-resistant layer (23) is a poly(p-terephthalyl alcohol) coating.

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