Modular spliced composite ground electrode

Abstract

The utility model relates to the technical field of power system grounding, disclose a kind of modular splicing type composite grounding electrode, including the connecting assembly including threaded rod, one end of the threaded rod is fixedly connected with rotating head, the other end of the threaded rod is fixedly connected with rotating block, threaded plate is connected on the outer wall of the threaded rod, rotating block outer wall rotationally connected with rotating sleeve, the rotating sleeve lower surface is fixedly connected in the inner wall of shell, the one end of threaded plate is fixedly connected with pressing plate, the outer wall of pressing plate is fixedly connected with sliding plate, the inner wall of sliding plate is slidably connected with guide rod, the both ends of guide rod are connected in the inner wall of shell, the inner wall of shell is provided with rubber plate, in the utility model, have good sealing and corrosion resistance, compared with traditional connecting block have more excellent connection stability, the protection connection point is also more excellent, thus, can solve the problem of resistance rise because of splicing position bad.

Description

Technical Field

[0001] This utility model relates to the field of power system grounding technology, and in particular to a modular splicing composite material grounding electrode. Background Technology

[0002] In power systems, communication base stations, lightning protection projects, and other fields, grounding electrodes are critical facilities for ensuring the safety of equipment and personnel. As a core component of the grounding system, the performance of the grounding electrode directly affects the reliability and safety of the entire system. It is mainly used in substation grounding grid systems, photovoltaic power stations, mobile communication base stations, and other similar applications. Currently, existing grounding electrodes typically use metallic grounding electrodes, such as galvanized steel, copper-clad steel, or pure copper rods, which conduct current to the earth through metallic conductors. Non-metallic grounding electrodes, such as graphite grounding bodies or conductive concrete, utilize the conductivity of non-metallic materials to achieve the grounding function.

[0003] Existing grounding electrodes still have defects. For example, the structure of the existing grounding electrode connection is relatively simple, and poor splicing position is easily subject to serious corrosion under the electrochemical action of the soil, which leads to the grounding resistance increasing year by year and affecting the safe operation of equipment. Therefore, there is an urgent need for a grounding module with excellent splicing. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a modular splicing composite material grounding electrode, which aims to improve the problem of increased resistance caused by corrosion due to poor splicing position.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular splicing composite material grounding electrode, including a down conductor, one end of which is fixedly connected to a shell, a grounding body is fixedly connected to the inner wall of the shell, the lower surface of the down conductor is fixedly connected to the upper surface of the grounding body, one end of the grounding body is fixedly connected to a grounding module, and a connecting component is provided inside the shell; The connecting assembly includes a threaded rod, the outer wall of which is rotatably connected to the inner wall of the outer casing. A rotating head is fixedly connected to one end of the threaded rod, and a rotating block is fixedly connected to the other end of the threaded rod. A threaded plate is threadedly connected to the outer wall of the threaded rod, and a rotating sleeve is rotatably connected to the outer wall of the rotating block. The lower surface of the rotating sleeve is fixedly connected to the inner wall of the outer casing. A pressure plate is fixedly connected to one end of the threaded plate, and a sliding plate is fixedly connected to the outer wall of the pressure plate. A guide rod is slidably connected to the inner wall of the sliding plate, and both ends of the guide rod are connected to the inner wall of the outer casing. A rubber plate is provided on the inner wall of the outer casing.

[0006] Furthermore, one end of the grounding body is provided with a wire shell, a locking plate is fixedly connected to the outer wall of the wire shell, a limit plate is fixedly connected to the inner wall of the locking plate, a guide shaft is fixedly connected to the inner wall of the locking plate, a spring is slidably connected to the outer wall of the guide shaft, and a retaining tooth is connected to both ends of the spring. The outer wall of the guide shaft is slidably connected to the inner wall of the retaining tooth.

[0007] Furthermore, an end cap is fixedly connected to the upper surface of the wire shell, a toothed plate is fixedly connected to the outer wall of the end cap, and the inner wall of the toothed plate is fixedly connected to the outer wall of the tooth.

[0008] Furthermore, the lower surface of the outer shell is fixedly connected to the upper surface, and the upper surface is fixedly connected to the lower surface of the outer shell.

[0009] Furthermore, a screw is provided through one end of the down conductor, and a conductor is fixedly connected to one end of the down conductor.

[0010] Furthermore, a nut is threaded onto the outer wall of the screw, and a washer is fitted onto the outer wall of the screw.

[0011] Furthermore, the outer wall of the grounding module is fixedly connected to one end of the end cap, and the outer wall of the grounding module is fixedly connected to one end of the wire housing.

[0012] Furthermore, the lower surface of the grounding module is fixedly connected to the upper surface of the resistance-reducing cloth, and the upper surface of the resistance-reducing cloth is fixedly connected to the lower surface of the grounding body.

[0013] This utility model has the following beneficial effects: 1. In this utility model, by rotating the rotating head, the threaded rod inside the outer shell is rotated, and the threaded plate on the outer shell of the threaded rod will drive the pressure plate to rise or fall. Therefore, when the rotating head is rotated clockwise, one end of the lead wire and one end of the grounding body can be firmly pressed onto the rubber plate on the outer shell. The outer shell has good sealing and corrosion resistance, and has better connection stability than traditional connecting blocks. It also provides better protection for the connection points. Therefore, it can solve the problem of resistance increase caused by poor splicing position.

[0014] 2. In this utility model, the connection point between the grounding body and the grounding module is placed inside the wire housing, and then the end cover is put on. At this time, the locking teeth compress the spring through the guide shaft, and the front end of the locking teeth will lock into the toothed plate, which can firmly lock the end cover. Just squeeze the end of the locking teeth to contact the limiting plate to release the toothed plate and open the end cover. It has a good sealing performance when closed, so the problem of the grounding module connection point being easily corroded can be solved. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a modular splicing composite material grounding electrode proposed in this utility model; Figure 2This is a schematic diagram of the grounding module structure of a modular splicing composite material grounding electrode proposed in this utility model; Figure 3 This is a schematic diagram of the toothed part of a modular splicing composite material grounding electrode proposed in this utility model; Figure 4 for Figure 3 Enlarged view at point B in the middle; Figure 5 This is a schematic diagram of the threaded shaft portion of a modular splicing composite material grounding electrode proposed in this utility model; Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0016] Legend: 1. Conductor; 2. Screw; 3. Nut; 4. Washer; 5. Downlead; 6. Resistance-reducing cloth; 7. Housing; 8. Rotating head; 9. Guide rod; 10. Sliding plate; 11. Rotating sleeve; 12. Rotating block; 13. Threaded plate; 14. Threaded rod; 15. Pressure plate; 16. Rubber plate; 17. Grounding electrode; 18. Wire shell; 19. Locking plate; 20. End cap; 21. Gear plate; 22. Clamping tooth; 23. Spring; 24. Guide shaft; 25. Limiting plate; 26. Grounding module. Detailed Implementation

[0017] 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.

[0018] Reference Figure 1 and Figures 5-6 An embodiment of this utility model is provided: a modular splicing composite material grounding electrode, including a down conductor 5, one end of the down conductor 5 is fixedly connected to a shell 7, a grounding body 17 is fixedly connected to the inner wall of the shell 7, the lower surface of the down conductor 5 is fixedly connected to the upper surface of the grounding body 17, one end of the grounding body 17 is fixedly connected to a grounding module 26, and a connection component is provided inside the shell 7. The connecting assembly includes a threaded rod 14, the outer wall of which is rotatably connected to the inner wall of the outer casing 7. One end of the threaded rod 14 is fixedly connected to a rotating head 8, and the other end of the threaded rod 14 is fixedly connected to a rotating block 12. A threaded plate 13 is threadedly connected to the outer wall of the threaded rod 14, and a rotating sleeve 11 is rotatably connected to the outer wall of the rotating block 12. The lower surface of the rotating sleeve 11 is fixedly connected to the inner wall of the outer casing 7. One end of the threaded plate 13 is fixedly connected to a pressure plate 15, and a sliding plate 10 is fixedly connected to the outer wall of the pressure plate 15. A guide rod 9 is slidably connected to the inner wall of the sliding plate 10, and both ends of the guide rod 9 are connected to the inner wall of the outer casing 7. A rubber plate 16 is provided on the inner wall of the outer casing 7. One end of the down conductor 5 is placed into the internal space of the outer casing 7, and then one end of the grounding body 17 is also placed into the inner space of the outer casing 7 and placed on top of the down conductor 5. The connecting assembly is used to firmly fix them together. In addition, a grounding module 26 is installed on the other end of the grounding body 17.

[0019] Specifically, by using a tool to rotate the rotating head 8, the threaded rod 14 connected to it can be rotated. Since the threaded rod 14 is fitted with a threaded plate 13, when the threaded rod 14 rotates, it will drive the threaded plate 13 to move up and down according to the clockwise or counterclockwise rotation. Since the threaded plate 13 is fixed on the pressure plate 15, and the pressure plate 15 is provided with guide rods 9 on both sides, the pressure plate 15 and the threaded plate 13 can rise or fall smoothly and synchronously. When the pressure plate 15 rises, it will firmly fix the lead wire 5 to the rubber plate 16. Due to the elasticity of the rubber plate 16, it has good cushioning and is also an insulator to ensure the stability of the connection. In addition, the entire outer shell 7 has excellent waterproof sealing performance and strong corrosion resistance, which can effectively resist the erosion caused by burial underground and ensure the stability of the resistance.

[0020] Reference Figure 1 and Figures 3-4 A wire shell 18 is provided at one end of the grounding body 17. A locking plate 19 is fixedly connected to the outer wall of the wire shell 18. A limit plate 25 is fixedly connected to the inner wall of the locking plate 19. A guide shaft 24 is fixedly connected to the inner wall of the locking plate 19. A spring 23 is slidably connected to the outer wall of the guide shaft 24. Both ends of the spring 23 are connected to locking teeth 22. The outer wall of the guide shaft 24 is slidably connected to the inner wall of the locking teeth 22. An end cap 20 is fixedly connected to the upper surface of the wire shell 18. A toothed plate 21 is fixedly connected to the outer wall of the end cap 20. The inner wall of the toothed plate 21 is fixedly connected to the outer wall of the locking teeth 22.

[0021] Specifically, the connection point between the grounding electrode 17 and the grounding module 26 is placed inside the housing 18. Then, the end cap 20 is placed over the opening of the housing 18. During this process, the retaining teeth 22 on the end cap 20 are pressed by the toothed plate 21 and move along the trajectory of the guide shaft 24, simultaneously compressing the spring 23 on the guide shaft 24. When the end cap 20 is fully in place, the front end of the retaining teeth 22 engages in the groove of the toothed plate 21, securing the end cap 20 firmly. When the end cap 20 needs to be removed, simply press the end of the retaining teeth 22, moving it towards the limiting plate 25. When the retaining teeth 22 contact the limiting plate 25, the front end will disengage from the groove of the toothed plate 21, allowing the end cap 20 to be easily removed from the housing 18.

[0022] Reference Figure 1-2 and Figure 3 A screw 2 is installed through one end of the down conductor 5, and a conductor 1 is fixedly connected to one end of the down conductor 5. A nut 3 is threadedly connected to the outer wall of the screw 2, and a washer 4 is fitted on the outer wall of the screw 2.

[0023] Specifically, place one end of conductor 1 and one end of lead wire 5 together, connect the connection point between them with screw 2, and then tighten it with nut 3 and washer 4. Because of the addition of washer 4, the connection between screw 2 and nut 3 has better shock resistance and anti-slip properties.

[0024] Working principle: When the device is needed, firstly, fix the down conductor 5 to the conductor 1 with screws 2 and secure it firmly with nuts 3 and washers 4. Next, lay the resistance-reducing cloth 6 on the pre-dug path, and then lay the down conductor 5 along the direction of the resistance-reducing cloth 6. Then, use the connecting assembly to connect the down conductor 5 to the grounding body 17. The connecting assembly consists of the housing 7 stacking the down conductor 5 and the grounding body 17 inside. By rotating the rotating head 8, the threaded rod 14 inside the housing 7 is rotated. The threaded plate 13 on the outer sleeve of the threaded rod 14 will drive the pressure plate 15 to rise or fall. The pressure plate 15 is mounted on the guide rod 9 by four sliding plates 10. The guide rod 9 is not only supported by the housing 7, but also stabilizes the smoothness of the sliding of the pressure plate 15. The other end of the threaded rod 14 is rotated. Block 12 and rotating sleeve 11 can rotate smoothly. Therefore, rotating the rotating head 8 clockwise can firmly press one end of the lead wire 5 and one end of the grounding body 17 onto the rubber plate 16 set inside the outer shell 7. The other end of the grounding body 17 is directly connected to the grounding module 26. The front end of the grounding module 26 is equipped with a protective component. Place the connection point between the grounding body 17 and the grounding module 26 inside the wire shell 18, and then put the end cover 20 on. At this time, the locking teeth 22 compress the spring 23 through the guide shaft 24. The front end of the locking teeth 22 will be locked into the toothed plate 21, which can firmly lock the end cover 20. The locking plate 19 is used to fix the whole on the wire shell 18. If it needs to be opened, just squeeze the end of the locking teeth 22 until it contacts the limiting plate 25 to release the toothed plate 21 and open the end cover 20.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A modular splicing composite material grounding electrode, comprising a down conductor (5), characterized in that: One end of the down conductor (5) is fixedly connected to the outer shell (7), and the inner wall of the outer shell (7) is fixedly connected to the grounding body (17). The lower surface of the down conductor (5) is fixedly connected to the upper surface of the grounding body (17). One end of the grounding body (17) is fixedly connected to the grounding module (26). A connection component is provided inside the outer shell (7). The connecting assembly includes a threaded rod (14), the outer wall of which is threaded to the inner wall of the outer shell (7). A rotating head (8) is fixedly connected to one end of the threaded rod (14), and a rotating block (12) is fixedly connected to the other end of the threaded rod (14). A threaded plate (13) is threaded to the outer wall of the threaded rod (14). A rotating sleeve (11) is rotatably connected to the outer wall of the rotating block (12). The lower surface of the rotating sleeve (11) is fixedly connected to the inner wall of the outer shell (7). A pressure plate (15) is fixedly connected to one end of the threaded plate (13). A sliding plate (10) is fixedly connected to the outer wall of the pressure plate (15). A guide rod (9) is slidably connected to the inner wall of the sliding plate (10). Both ends of the guide rod (9) are connected to the inner wall of the outer shell (7). A rubber plate (16) is provided on the inner wall of the outer shell (7).

2. The modular splicing composite material grounding electrode according to claim 1, characterized in that: One end of the grounding body (17) is provided with a wire shell (18). A locking plate (19) is fixedly connected to the outer wall of the wire shell (18). A limit plate (25) is fixedly connected to the inner wall of the locking plate (19). A guide shaft (24) is fixedly connected to the inner wall of the locking plate (19). A spring (23) is slidably connected to the outer wall of the guide shaft (24). Both ends of the spring (23) are connected to locking teeth (22). The outer wall of the guide shaft (24) is slidably connected to the inner wall of the locking teeth (22).

3. The modular splicing composite material grounding electrode according to claim 2, characterized in that: An end cap (20) is fixedly connected to the upper surface of the wire shell (18), and a toothed plate (21) is fixedly connected to the outer wall of the end cap (20). The inner wall of the toothed plate (21) is fixedly connected to the outer wall of the tooth (22).

4. A modular splicing composite material grounding electrode according to claim 1, characterized in that: The lower surface of the outer shell (7) is fixedly connected to the upper surface of (6), and the upper surface of (6) is fixedly connected to the lower surface of the outer shell (18).

5. A modular splicing composite material grounding electrode according to claim 1, characterized in that: A screw (2) is installed through one end of the down conductor (5), and a conductor (1) is fixedly connected to one end of the down conductor (5).

6. A modular splicing composite material grounding electrode according to claim 5, characterized in that: The screw (2) has a nut (3) threaded on its outer wall, and a washer (4) is fitted on the outer wall of the screw (2).

7. A modular splicing composite material grounding electrode according to claim 3, characterized in that: The outer wall of the grounding module (26) is fixedly connected to one end of the end cap (20), and the outer wall of the grounding module (26) is fixedly connected to one end of the wire shell (18).

8. A modular splicing composite material grounding electrode according to claim 3, characterized in that: The lower surface of the grounding module (26) is fixedly connected to a resistance-reducing cloth (6), and the upper surface of the resistance-reducing cloth (6) is fixedly connected to the lower surface of the grounding body (17).

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