A ground line

Abstract

This utility model discloses a grounding wire, relating to the field of grounding wire technology. It includes a cable body with an insulating pad adhered to its surface. A steel pipe runs through the cable body, and multiple storage tubes penetrate the inner wall of the steel pipe. Flame retardants are placed inside the storage tubes, and a clamping assembly is installed on the inner wall of the steel pipe. This utility model uses the cable body as a current channel to conduct leakage current and overvoltage surge current to the ground, which is the foundation of the grounding function. The insulating pad isolates the cable body from external metal components, preventing accidental conduction. The steel pipe provides physical protection against animal bites and external impacts, preventing direct damage to the cable body. The spring force keeps the clamp tightly against the cable body, achieving self-adaptive fixing of the steel pipe and cable, adapting to cables of different diameters. The damped spring absorbs vibration, preventing rigid collisions between the cable and the steel pipe that could cause damage. When environmental temperature changes cause thermal expansion and contraction of the cable...

Description

Technical Field

[0001] This utility model relates to the field of grounding wire technology, specifically to a grounding wire. Background Technology

[0002] Grounding wires are a core component of electrical safety systems. Their core function is to construct a safe current path to address three major safety hazards in electrical systems: leakage current, static electricity, and overvoltage. Ultimately, this protects equipment, personnel, and system stability. Electrical systems may experience lightning overvoltages, such as lightning strikes on lines, operational overvoltages, or fault overvoltages. These high voltages can break down equipment insulation. Grounding wires can quickly discharge the surge current generated by overvoltages into the ground, reducing the voltage difference between the two ends of the equipment and preventing insulation breakdown, component burnout, or permanent equipment damage.

[0003] When existing grounding wires are buried in the ground, they are easily chewed by insects and ants. Some chewing only causes damage to the insulation layer, leaving only tooth marks or local damage on the surface. If they are not carefully inspected during inspections, the grounding wires may be mistakenly thought to be normal. However, over time, the damaged insulation layer will become damp and oxidized, causing the conductor to corrode and eventually break, leading to a safety accident.

[0004] Therefore, a grounding wire is proposed. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a grounding wire.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a grounding wire, a cable body, an insulating pad attached to the surface of the cable body, a steel pipe passing through the cable body, multiple sets of storage tubes passing through the inner wall of the steel pipe, flame retardants being disposed inside the multiple sets of storage tubes, and a clamping assembly installed on the inner wall of the steel pipe;

[0007] The clamping assembly includes a clamping plate installed inside a steel pipe. Two sets of springs are fixedly connected to one side of the clamping plate, with one end of each set of springs fixedly connected to the inner wall of the steel pipe. The other side of the clamping plate is disposed on the surface of the cable body, and dampers are provided at both ends of the springs.

[0008] Preferably, the insulating pad is made of polyethylene, and the surface of the cable body is coated with chlorinated rubber topcoat, which extends the service life of the cable body outdoors or underground, and is especially suitable for highly corrosive environments.

[0009] Preferably, a sealing block is provided at the junction of the steel pipe and the cable body. The surface of the steel pipe is covered with a zinc layer. The sealing block is used to bite and prevent water and mud from entering the interior of the steel pipe, thus avoiding long-term immersion and corrosion of the cable. The zinc layer is metallurgically bonded to the steel, making it impact-resistant and wear-resistant. It is not easy to fall off during construction and has low maintenance costs throughout its entire life cycle.

[0010] Preferably, the clamp is provided with a soft pad on the side near the cable body, and the soft pad is provided with a gasket inside to protect the cable body from mechanical damage by the clamping components, while strengthening insulation protection and adapting to the flexible clamping requirements of cables of different diameters.

[0011] Preferably, connectors are installed at both ends of the cable body, and anti-corrosion paint is applied to the junction of the connectors and the cable body to prevent the grounding resistance from increasing due to connector corrosion and to avoid implicit grounding failure.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model uses the cable body as a current channel to conduct leakage current and overvoltage impact current to the ground, which is the basis of the grounding function. With the action of the insulating pad, the cable body is isolated from external metal parts to avoid accidental conduction. The steel pipe provides physical protection against animal bites and external impacts, preventing direct damage to the cable body. In addition, the steel pipe serves as a storage tube for flame retardant and an installation carrier for clamping components, which can integrate various functional components. The tubular structure with multiple storage tubes penetrating the inner wall of the steel pipe is filled with flame retardant. In the event of a fire or high temperature, the flame retardant is released by heat and covers the surface of the cable body to block combustion. The multiple designs ensure uniform coverage of the flame retardant and avoid blind spots in local protection. The elasticity of the spring keeps the clamp tightly against the cable body, realizing the self-adaptive fixation of the steel pipe and the cable, which is suitable for cables of different diameters. The spring with damper can absorb vibration and prevent the cable from being damaged by rigid collision with the steel pipe. When the ambient temperature changes and the cable expands and contracts due to heat, the spring can extend and retract to compensate for displacement and prevent the cable from being pulled apart or deformed by compression. Attached Figure Description

[0014] Figure 1 This is a schematic diagram showing the structural separation of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the clamping component structure installation of this utility model.

[0017] In the diagram: 1. Cable body; 2. Steel pipe; 3. Sealing block; 4. Storage tube; 5. Insulating pad; 6. Clamping assembly; 61. Clamping plate; 62. Spring; 63. Soft pad. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] The embodiments of this utility model will be described below based on its overall structure.

[0020] Please see Figure 1 - Figure 3 A grounding wire includes a cable body 1, an insulating pad 5 is attached to the surface of the cable body 1, a steel pipe 2 passes through the cable body 1, multiple sets of storage tubes 4 pass through the inner wall of the steel pipe 2, flame retardants are placed inside the multiple sets of storage tubes 4, a clamping assembly 6 is installed on the inner wall of the steel pipe 2, the clamping assembly 6 includes a clamping plate 61, the clamping plate 61 is installed inside the steel pipe 2, two sets of springs 62 are fixedly connected to one side of the clamping plate 61, one end of the two sets of springs 62 is fixedly connected to the inner wall of the steel pipe 2, the other side of the clamping plate 61 is set on the surface of the cable body 1, and dampers are provided at both ends of the springs 62.

[0021] The cable body 1 serves as a current channel, responsible for guiding leakage current and overvoltage surge current to the ground, which is the foundation of the grounding function. With the action of the insulating pad 5, the cable body 1 is isolated from external metal parts to prevent accidental conduction. The steel pipe 2 provides physical protection against animal bites and external impacts, preventing direct damage to the cable body 1. The steel pipe 2 also serves as the installation carrier for the flame retardant storage tube 4 and the clamping assembly 6, which can integrate various functional components. Multiple sets of storage tubes 4 penetrate the tubular structure of the inner wall of the steel pipe 2, and are filled with flame retardant. In the event of a fire or high temperature, the flame retardant is released by heat and covers the surface of the cable body 1, blocking combustion. The multiple sets of designs ensure uniform coverage of the flame retardant and avoid local protection blind spots. The elasticity of the spring 62 makes the clamp 61 fit tightly against the cable body 1, realizing the self-adaptive fixation of the steel pipe 2 and the cable, which can adapt to cables of different diameters. The spring 62 with damper can absorb vibration and prevent the cable from being damaged by rigid collision with the steel pipe 2. When the ambient temperature changes and the cable expands and contracts due to heat, the spring 62 can expand and contract to compensate for displacement and prevent the cable from being pulled apart or deformed by compression.

[0022] Please see Figure 2 and Figure 3The insulating pad 5 is made of polyethylene. The surface of the cable body 1 is coated with chlorinated rubber paint. A sealing block 3 is provided at the junction of the steel pipe 2 and the cable body 1. The surface of the steel pipe 2 is covered with a zinc layer. A soft pad 63 is provided on the side of the clamp 61 near the cable body 1. An insulating pad 5 is provided inside the soft pad 63. Both ends of the cable body 1 are equipped with connectors. The junction of the connectors and the cable body 1 is coated with anti-corrosion paint. By using the polyethylene insulating pad 5... The cable body 1 is attached to the surface of the steel pipe 2, isolating the cable from direct contact with the inner wall of the steel pipe 2 to prevent electrochemical corrosion caused by the steel pipe 2 rusting. It also works with the physical protection of the steel pipe 2 to form a double isolation of metal hard protection and plastic soft insulation, preventing the cable insulation layer from being scratched by the burrs on the inner wall of the steel pipe 2. The chlorinated rubber topcoat and the polyethylene insulating pad 5 form a coating and gasket for synergistic anti-corrosion, preventing the cable body 1 from aging and cracking from the surface. The chlorinated rubber topcoat covers the surface of the cable body 1 to form a dense anti-corrosion coating, blocking the adhesion of moisture, salt and industrial dust in the soil. The soft pad 63 fills the gap between the clamp 61 and the cable body 1, preventing the clamp 61 from directly squeezing the cable. The rubber elasticity buffers the clamping force to prevent the cable from being pinched. It covers the connection gap between the joint and the cable body 1 to prevent moisture and dust from seeping in and causing the joint to oxidize and rust. It forms a seamless anti-corrosion connection with the chlorinated rubber topcoat on the surface of the cable, preventing the joint from becoming an anti-corrosion blind spot, preventing the grounding resistance from increasing due to joint corrosion, and preventing the hidden grounding failure.

[0023] Working principle: The cable body 1 serves as a current channel, responsible for conducting leakage current and overvoltage surge current to the ground, which is the foundation of the grounding function. The insulating pad 5 isolates the cable body 1 from external metal components, preventing accidental conduction. The steel pipe 2 provides physical protection against animal bites and external impacts, preventing direct damage to the cable body 1. Furthermore, the steel pipe 2 serves as the mounting carrier for the flame retardant storage tube 4 and clamping assembly 6, integrating various functional components. Multiple sets of storage tubes 4 penetrate the tubular structure of the inner wall of the steel pipe 2, filled with flame retardant. In fire or high-temperature scenarios, the flame retardant is released upon heating, covering the cable body. On the surface of the cable body 1, multiple flame-retardant designs ensure uniform coverage of the flame retardant, avoiding blind spots in local protection. The elasticity of spring 62 keeps clamp 61 tightly against the cable body 1, achieving self-adaptive fixation between the steel pipe 2 and the cable, accommodating cables of different diameters. The damped spring 62 absorbs vibration, preventing rigid collisions between the cable and the steel pipe 2 that could cause damage. When changes in ambient temperature cause thermal expansion and contraction of the cable, spring 62 can expand and contract to compensate for displacement, preventing the cable from being pulled apart or deformed by compression. The polyethylene insulation pad 5 is attached to the surface of the cable body 1, isolating the cable from direct contact with the inner wall of the steel pipe 2, preventing corrosion of the steel pipe 2 and subsequent contact with the cable. Electrochemical corrosion is formed, which, combined with the physical protection of the steel pipe 2, creates a double isolation of hard metal protection and soft plastic insulation. This prevents the cable insulation layer from being scratched by burrs on the inner wall of the steel pipe 2, extending the service life of the cable body 1 outdoors or buried. It is especially suitable for highly corrosive environments. The chlorinated rubber topcoat and the polyethylene insulation pad 5 form a synergistic anti-corrosion coating and gasket, preventing the cable body 1 from aging and cracking from the surface. The chlorinated rubber topcoat covers the surface of the cable body 1, forming a dense anti-corrosion coating that blocks the adhesion of moisture, salt, and industrial dust from the soil, extending the service life of the cable body 1 outdoors or buried. It is especially suitable for highly corrosive environments. In corrosive environments, the soft pad 63 fills the gap between the clamping plate 61 and the cable body 1, preventing the clamping plate 61 from directly squeezing the cable. The rubber elasticity buffers the clamping force, preventing the cable from being pinched and damaged. It covers the connection gap between the connector and the cable body 1, preventing moisture and dust from seeping in and causing the connector to oxidize and rust. It protects the cable body 1 from mechanical damage by the clamping component 6, while strengthening insulation protection. It adapts to the flexible clamping requirements of cables of different diameters. The chlorinated rubber topcoat on the surface of the connector and the cable forms a seamless anti-corrosion connection, preventing the connector from becoming a blind spot for anti-corrosion, preventing the grounding resistance from increasing due to connector corrosion, and preventing the failure of implicit grounding.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A grounding wire, comprising a cable body (1), characterized in that: The surface of the cable body (1) is covered with an insulating pad (5), the cable body (1) is penetrated by a steel pipe (2), the inner wall of the steel pipe (2) is penetrated by multiple sets of storage tubes (4), the multiple sets of storage tubes (4) are filled with flame retardant, and the inner wall of the steel pipe (2) is equipped with a clamping assembly (6). The clamping assembly (6) includes a clamping plate (61), which is installed inside the steel pipe (2). Two sets of springs (62) are fixedly connected to one side of the clamping plate (61). One end of the two sets of springs (62) is fixedly connected to the inner wall of the steel pipe (2). The other side of the clamping plate (61) is set on the surface of the cable body (1). Dampers are provided at both ends of the springs (62).

2. A grounding wire according to claim 1, characterized in that: The insulating pad (5) is made of polyethylene, and the surface of the cable body (1) is coated with chlorinated rubber topcoat.

3. A grounding wire according to claim 2, characterized in that: A sealing block (3) is provided at the junction of the steel pipe (2) and the cable body (1), and the surface of the steel pipe (2) is covered with a zinc layer.

4. A grounding wire according to claim 3, characterized in that: The clamp (61) is provided with a soft pad (63) on the side near the cable body (1), and a gasket is provided inside the soft pad (63).

5. A grounding wire according to claim 4, characterized in that: Both ends of the cable body (1) are equipped with connectors, and the junction of the connectors and the cable body (1) is coated with anti-corrosion paint.

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