Protective device for grounding wire at grounding point

Abstract

This utility model discloses a protective device for a grounding wire at a grounding point, relating to the technical field of grounding wires at grounding points. The protective device includes a protective sleeve and a waterproof structure. The protective sleeve is fitted over the outside of the grounding wire to protect it. The waterproof structure includes a take-up box and a rain guide plate. The take-up box is located on top of the protective sleeve and has an open storage cavity. The rain guide plate is detachably installed on top of the take-up box to close the opening, and it is angled to guide the flow of rainwater. Through the combined design of the rain guide plate and the take-up box, active drainage is achieved while maintaining the wire's airtightness. The angled drainage structure can adapt to different rainfall conditions and prevents salt from repeatedly depositing on the wire surface with accumulated water.

Description

Technical Field

[0001] This utility model relates to the field of grounding wire technology, and in particular to a protective device for grounding wire. Background Technology

[0002] Grounding systems are fundamental to protecting the safe operation of power transmission lines. Corrosion of metal grounding materials during use seriously affects the safe operation of power lines. Due to the advantages of new graphite-based flexible grounding materials, such as stable performance, low resistivity, good corrosion resistance, and strong resistance to high current impact, they are widely used in lightning protection grounding networks for power transmission lines, effectively solving problems such as severe corrosion of traditional metal grounding networks, high soil resistivity, and difficulty in reducing resistance in areas with frequent lightning strikes.

[0003] The drier the climate, the stronger the evaporation, and the heavier the soil salinization, resulting in large areas of salinized soil. The high-salt and high-alkali environment will also exacerbate the corrosion and damage of engineering facilities, leading to large-scale corrosion of the lightning protection grounding network of the hot-dip galvanized flat steel laid in the early stage, material waste, and a decrease in the safety factor. Utility Model Content

[0004] The main purpose of this invention is to provide a protective device for the grounding wire at the grounding point, which aims to improve the corrosion resistance of the grounding wire and enable it to be used effectively for a long time.

[0005] To achieve the above objectives, the present invention proposes a protective device for the grounding wire at the grounding point, comprising:

[0006] A protective sleeve, fitted over the outside of the ground electrode wire, is used to protect the ground electrode wire; and

[0007] The waterproof structure includes a cable reel box and a rain guide plate. The cable reel box is located on the top of the protective sleeve and has an open storage cavity. The rain guide plate is detachably installed on the top of the cable reel box to close the opening, and the rain guide plate is inclined to guide the flow of rainwater.

[0008] Preferably, the outer periphery of the take-up box is provided with multiple cable inlet holes.

[0009] Preferably, the outer periphery of the take-up box is provided with a plurality of cable management structures corresponding one-to-one with each of the cable inlets. The cable management structure includes an arc-shaped pipe, and the ground wire is passed through the arc-shaped pipe to restrict the placement position of the ground wire.

[0010] Preferably, the thread arrangement structure further includes:

[0011] A pull plate is inserted into the arc-shaped pipe;

[0012] The movable block is slidably installed inside the arc-shaped pipe and is located on one side of the pull plate;

[0013] An elastic element is disposed between the movable block and the arc-shaped pipe.

[0014] Preferably, a buffer is provided on the side of the movable block away from the elastic element.

[0015] Preferably, the protective sleeve is internally threaded with an adjusting sleeve, and the bottom of the protective sleeve is provided with multiple lifting rods.

[0016] Preferably, the top of the adjusting sleeve is provided with a plurality of auxiliary rods, so as to drive the adjusting sleeve to rotate when the auxiliary rods are rotated.

[0017] Preferably, the inner cavity of the adjusting sleeve is filled with fine soil.

[0018] Preferably, both the protective sleeve and the adjusting sleeve are made of carbon nanotube flat steel.

[0019] Preferably, the take-up box and the protective sleeve are detachably connected.

[0020] In the technical solution provided by this utility model, the protective sleeve is fitted on the outside of the grounding wire to protect the grounding wire. The waterproof structure includes a take-up box and a rain guide plate. The take-up box is set on the top of the protective sleeve and forms a storage cavity with an opening. The rain guide plate is detachably installed on the top of the take-up box to close the opening. The rain guide plate is inclined to guide the flow of rainwater. Through the combined design of the rain guide plate and the take-up box, active drainage is achieved while maintaining the sealing of the wire. The inclined guiding structure can adapt to different precipitation conditions and avoid salt from repeatedly depositing on the surface of the wire with accumulated water. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 A perspective view of an embodiment of the protective device for the grounding wire at the grounding point provided by this utility model;

[0023] Figure 2 for Figure 1 Cross-sectional view of the protective sleeve;

[0024] Figure 3 for Figure 1 A cross-sectional view of a medium-curved pipe.

[0025] Explanation of icon numbers:

[0026] 100. Protective device for grounding wire at grounding point; 1. Waterproof structure; 11. Rain guide plate; 12. Cable take-up box; 2. Protective sleeve; 3. Lifting rod; 4. Curved pipe; 5. Adjusting sleeve; 6. Auxiliary rod; 7. Cable management structure; 71. Elastic element; 72. Pull plate; 73. Movable block.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] This utility model provides a protective device 100 for the ground wire at the grounding point. Figures 1 to 3 An embodiment of the grounding protection device 100 provided by this utility model.

[0032] Metal grounding materials are susceptible to corrosion from high salt and alkali in saline-alkali environments. Traditional protective measures often employ hot-dip galvanized flat steel structures, but large-scale corrosion still occurs after long-term exposure. Evaporation of moisture in saline soil leads to salt accumulation, exacerbating the oxidation of metal components. Existing protective devices lack effective drainage structures, allowing rainwater to easily seep in through the grounding holes, keeping the area where the wires contact the soil constantly damp and accelerating the electrochemical corrosion process.

[0033] Please refer to the following: Figures 1 to 3 The protective device 100 for the grounding wire includes a protective sleeve 2 and a waterproof structure 1. The protective sleeve 2 is fitted onto the outside of the grounding wire to protect it. The waterproof structure 1 includes a take-up box 12 and a rain guide plate 11. The take-up box 12 is located on top of the protective sleeve 2 and has an open storage cavity. The rain guide plate 11 is detachably installed on top of the take-up box 12 to close the opening. The rain guide plate 11 is inclined to guide the flow of rainwater.

[0034] The protective sleeve 2 refers to the cylindrical structure that wraps around the grounding wire, which can be implemented using a segmented sleeve connection method, used to isolate the soil from direct contact with the wire. The take-up box 12 refers to a box structure with an opening at the top, which can be fixed to the upper end of the protective sleeve 2 by welding or bolting, and its internal storage cavity is used to collect the wire joints. The rain deflector 11 refers to an inclined plate covering the opening of the take-up box 12, which can be hinged to achieve flip-up and disassembly, and the tilt angle can be adjusted according to the local rainfall intensity to change the path of rainwater.

[0035] After the protective sleeve 2 wraps around the grounding wire, it is inserted into the grounding hole, forming an isolation layer between its outer wall and the hole wall. The take-up box 12 is fixed to the top of the sleeve, and its internal storage cavity is connected to the outside through an opening. The grounding wire extends through the sleeve into the storage cavity to complete the wiring. After installation, the rain guide plate 11 completely covers the opening, and its inclined surface allows rainwater to slide down the plate surface to the area around the grounding hole, preventing water from accumulating and seeping into the storage cavity. When the surface runoff increases, the rain guide plate 11 can be quickly removed for inspection and maintenance of the internal wiring.

[0036] Therefore, in the technical solution provided by this utility model, the protective sleeve 2 is sleeved on the outside of the grounding wire to protect the grounding wire. The waterproof structure 1 includes a take-up box 12 and a rain guide plate 11. The take-up box 12 is disposed on the top of the protective sleeve 2. The take-up box 12 forms a storage cavity with an opening. The rain guide plate 11 is detachably installed on the top of the take-up box 12 to close the opening. The rain guide plate 11 is inclined to guide the flow of rainwater. Through the combined design of the rain guide plate 11 and the take-up box 12, active drainage is achieved while maintaining the sealing of the wire. The inclined guiding structure can adapt to different precipitation conditions and avoid salt from repeatedly depositing on the surface of the wire with the accumulated water.

[0037] To achieve decentralized deployment of grounding wires in saline-alkali environments, effectively avoiding insulation wear caused by concentrated cable routing, and to prevent the retention of salt solution inside the enclosure through a multi-hole drainage design, thus extending the maintenance cycle of the grounding system.

[0038] Specifically, in the embodiments of this utility model, the outer periphery of the take-up box 12 is provided with a plurality of wire inlet holes.

[0039] In saline-alkali environments, the ground wire needs to form a complete circuit with the protective sleeve 2 through the cable take-up box 12. Multiple cable inlets are evenly distributed around the circumference of the cable take-up box 12, allowing the ground wire to be inserted at different angles according to the on-site wiring requirements. When encountering heavy rainfall, rainwater flows outward along the slope of the rain guide plate 11, and the cable inlets and protective sleeve 2 form a staggered layout, effectively preventing rainwater from flowing back into the channels. After the cable is inserted, it is fixed by the cable management structure 7 to ensure that the cable bundle spacing meets safety specifications.

[0040] Furthermore, the outer periphery of the take-up box 12 is provided with a plurality of cable management structures 7 corresponding one-to-one with each of the cable inlets. The cable management structure 7 includes an arc-shaped pipe 4, and the ground wire is passed through the arc-shaped pipe 4 to limit the placement position of the ground wire.

[0041] Furthermore, the cable management structure 7 also includes a pull plate 72, a movable block 73, and an elastic element 71. The pull plate 72 passes through the arc-shaped pipe 4, the movable block 73 is slidably installed inside the arc-shaped pipe 4 and is disposed on one side of the pull plate 72, and the elastic element 71 is disposed between the movable block 73 and the arc-shaped pipe 4.

[0042] The curved pipe 4 refers to a curved channel used to fix the direction of the grounding wire. It can be implemented using a metal pipe with a semi-circular or U-shaped cross-section, and its curvature restricts the lateral displacement of the grounding wire within the pipe. The pull plate 72 refers to a traction component that penetrates the side wall of the pipe. It can be implemented using a metal plate with a handle, and the position of the movable block 73 can be adjusted manually. The movable block 73 refers to a limiting component that slides along the inner wall of the pipe. It can be implemented using a metal block with a rubber-coated surface, and its sliding trajectory is constrained by the elastic element 71, used to clamp the grounding wire. The elastic element 71 refers to a compression element that provides a restoring force. It can be implemented using a coil spring or a rubber gasket, and its elastic force acts between the movable block 73 and the inner wall of the pipe, keeping the grounding wire taut.

[0043] After the ground wire enters through the inlet hole, it enters the arc-shaped pipe 4. The curved structure of the pipe forces the ground wire to extend along a predetermined path. When the position of the ground wire needs to be adjusted, the pull plate 72 is pulled outward to drive the movable block 73 to slide against the resistance of the elastic element 71. At this time, the ground wire is in a relaxed state, which is convenient for rearrangement. After the pull plate 72 is released, the elastic element 71 pushes the movable block 73 to reset, pressing the ground wire against the inner wall of the pipe. The sliding fit between the movable block 73 and the inner wall of the pipe can adapt to ground wires of different diameters. The continuous pressure provided by the elastic element 71 can prevent the ground wire from shifting due to vibration or soil settlement.

[0044] In order to effectively alleviate the rigid contact between the grounding wire and the movable block 73, reduce wire damage caused by vibration or external force in the saline-alkali environment, and extend the service life of the grounding wire, specifically, in the embodiment of this utility model, a buffer is provided on the side of the movable block 73 away from the elastic member 71.

[0045] When external vibration or ground wire is displaced due to force, movable block 73 slides in arc-shaped pipe 4. Elastic element 71 stores energy through deformation to limit the movement range of movable block 73. Buffer element is set on the side of movable block 73 away from elastic element 71. It absorbs the impact energy between movable block 73 and ground wire through its own elastic deformation, avoiding surface wear or breakage of ground wire due to hard contact.

[0046] Specifically, in the technical solution of this utility model, the protective sleeve 2 is internally threaded with an adjusting sleeve 5, and the bottom of the protective sleeve 2 is provided with multiple lifting rods 3.

[0047] In highly corrosive saline-alkali soil environments, after the lifting rod 3 installed at the bottom of the protective sleeve 2 is inserted into the ground, the main body of the sleeve is lifted to form an elevated layer. The ground wire remains naturally extended below the sleeve, avoiding compression deformation of the sleeve due to gravity sinking. The distribution density of the lifting rod 3 can be adjusted according to the arrangement of the ground wire. For example, three rods can be set at equal intervals along the circumference of the sleeve to form a stable triangular support structure.

[0048] Furthermore, the top of the adjusting sleeve 5 is provided with a plurality of auxiliary rods 6, so that the adjusting sleeve 5 can be rotated when the auxiliary rods 6 are rotated.

[0049] The protective sleeve 2 and the adjusting sleeve 5 are connected by a threaded fit to form an adjustable height connection structure. Different depths of holes need to be opened according to different terrains. The adjusting sleeve 5 needs to be rotated so that the adjusting sleeve 5 rotates out of the protective sleeve 2 and extends along the axial direction of the protective sleeve 2, thereby adjusting the distance between the top of the protective sleeve 2 and the bottom of the adjusting sleeve 5 to fit the hole. The support rod makes it easy to rotate the protective sleeve 2 when the protective sleeve 2 and the adjusting sleeve 5 are aligned or when the adjusting sleeve 5 is completely inside the cavity of the protective sleeve 2.

[0050] The grounding device is directly exposed to saline-alkali soil, and the metal parts are electrochemically corroded by the penetration of corrosive ions in the soil. In order to prevent the corrosive components in the saline-alkali soil from directly contacting the metal surface of the grounding electrode and slow down the oxidation rate of the grounding material, specifically, in the technical solution of this utility model, the inner cavity of the adjusting sleeve 5 is filled with fine soil.

[0051] After the inner cavity of the sleeve is filled with fine soil, a transition layer is formed between the fine soil and the surrounding saline-alkali soil. Corrosive ions in the saline-alkali soil are adsorbed by the fine soil during infiltration, reducing the concentration of corrosive substances entering the sleeve. When the threaded connection between the adjusting sleeve 5 and the protective sleeve 2 is made, the fine soil filling layer sinks with the sleeve and comes into contact with the surrounding soil. The fine soil particles fill the gaps in the soil, forming a continuous conductive path and improving the stability of the grounding resistance. In the high-humidity environment of saline-alkali land, the fine soil remains moist due to capillary action, maintaining its conductivity.

[0052] Furthermore, both the protective sleeve 2 and the adjusting sleeve 5 are made of carbon nanotube flat steel.

[0053] When the protective sleeve 2 and the adjusting sleeve 5 are made of carbon nanotube flat steel, the directional distribution of carbon nanotubes in the metal matrix forms a three-dimensional network structure, which can effectively block the penetration paths of chloride ions and sulfate ions in saline-alkali soil. In saline soil environments, the passivation film formed on the surface of the carbon nanotube flat steel can inhibit electrochemical corrosion reactions, while its mechanical properties can maintain the stability of the sleeve structure under soil pressure.

[0054] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A protective device for a grounding wire at a grounding point, applied to a grounding hole with a grounding electrode wire drilled in saline-alkali land, characterized in that, include: A protective sleeve is fitted over the outside of the ground electrode wire to protect it. as well as The waterproof structure includes a cable reel box and a rain guide plate. The cable reel box is located on the top of the protective sleeve and has an open storage cavity. The rain guide plate is detachably installed on the top of the cable reel box to close the opening, and the rain guide plate is inclined to guide the flow of rainwater.

2. The ground line protection device of claim 1, wherein, The outer periphery of the take-up box is provided with multiple cable inlet holes.

3. The ground line protection device of claim 2, wherein, The outer periphery of the take-up box is provided with a plurality of cable management structures corresponding one-to-one with each of the cable inlets. The cable management structure includes an arc-shaped pipe, and the ground wire is passed through the arc-shaped pipe to restrict the placement position of the ground wire.

4. The ground line protection device of claim 3, wherein, The thread arrangement structure also includes: A pull plate is inserted into the arc-shaped pipe; The movable block is slidably installed inside the arc-shaped pipe and is located on one side of the pull plate; An elastic element is disposed between the movable block and the arc-shaped pipe.

5. The ground line protection device of claim 4, wherein, A buffer is provided on the side of the movable block away from the elastic element.

6. The ground line protection device of claim 1, wherein, The protective sleeve is internally threaded with an adjusting sleeve, and the bottom of the protective sleeve is provided with multiple lifting rods.

7. The protective device for the grounding wire at the grounding point as described in claim 6, characterized in that, The top of the adjusting sleeve is provided with multiple auxiliary rods, so that the adjusting sleeve can be rotated when the auxiliary rods are rotated.

8. The ground line protection device of claim 6, wherein, The inner cavity of the adjusting sleeve is filled with fine soil.

9. The ground line protection device of claim 6, wherein, Both the protective sleeve and the adjusting sleeve are made of carbon nanotube flat steel.

10. The ground line protection device of claim 1, wherein, The take-up box and the protective sleeve are detachably connected.

Images