Removable modular cable grounding box

Abstract

The utility model relates to high -voltage cable construction technical field discloses detachable modular cable grounding box, including grounding box, the left and right sides of grounding box all are seted up draft hole, the top of grounding box is seted up with a plurality of moving grooves, the inner wall front side of moving groove is fixedly connected with fixed block three, the outer wall of fixed block three is fixedly connected with spring shaft, the outer wall of spring shaft is fixedly connected with stopper no.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage cable construction technology, and in particular to a detachable modular cable grounding box. Background Technology

[0002] A cable grounding box is a key piece of equipment specifically used in high-voltage cables to ground the metal sheath of the cable. Its core function is to control the induced voltage and circulating current of the cable's metal sheath through a reasonable grounding method, ensuring the safe and stable operation of the cable and providing necessary protection for the cable system. When a high-voltage cable is running, the alternating current in the conductor will induce a voltage on the metal sheath. If the induced voltage is too high, it will lead to various risks such as damage to the sheath insulation and electric shock to personnel. The grounding box balances the voltage, suppresses losses, and protects against overvoltage through grounding connections, limiting the induced voltage within a safe range and ensuring the long-term stable operation of the cable.

[0003] When maintaining high-voltage cables, detachable modular cable grounding boxes are required to ensure long-term stable operation of the cables. Existing modular grounding boxes are mostly installed by welding and bolting. During the disassembly process, the copper busbars need to be disassembled before the cables can be disassembled and installed. This not only affects the work efficiency of workers, but also leads to unreliable connections in the middle of the copper busbars, creating potential fault hazards, resulting in reduced safety, decreased practicality, and reduced maintenance efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a detachable modular cable grounding box, which aims to improve the existing technology that does not have the function of conveniently disassembling the cable end. During the disassembly process, the copper busbar must also be disassembled before the cable can be disassembled and installed. This not only affects the work efficiency of workers, but also leads to unreliable connection of the copper busbar in the middle, creating potential fault hazards.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a detachable modular cable grounding box, including a grounding box, ventilation holes on both the left and right sides of the grounding box, multiple movable slots on the top of the grounding box, a fixing block three fixedly connected to the front inner wall of the movable slot, a spring shaft fixedly connected to the outer wall of the fixing block three, a limiter two fixedly connected to the outer wall of the spring shaft, a movable shaft fixedly connected to the rear end of the spring shaft, a clamping plate fixedly connected to the outer wall of the movable shaft, a fixing plate fixedly connected to the top of the clamping plate, a threaded rod threadedly connected to the inner wall of the fixing plate, a limiter one fixedly connected to the rear end of the threaded rod, a fixing block one threadedly connected to the outer wall of the threaded rod, and a quick-release mechanism fixedly connected to the inner wall of the grounding box, the quick-release mechanism being used for quick disassembly of components later.

[0006] As a further description of the above technical solution:

[0007] The quick-release mechanism includes a connecting block. The right side of the connecting block is fixedly connected to the inner wall of the grounding box. A screw is threadedly connected to the inner wall of the connecting block. An insulating sheet is slidably connected to the outer wall of the screw. A grounding plate is fixedly connected to the left side of the connecting block. A screw is threadedly connected to the inner wall of the grounding plate. A copper busbar is threadedly connected to the outer wall of the screw. Multiple grounding shafts are fixedly connected to the bottom of the copper busbar. Grounding boxes are fixedly connected to the outer walls of the multiple grounding shafts. Grounding terminals are slidably connected to the bottom of the grounding shafts. Insulating porcelain bottles are fixedly connected to the outer walls of the grounding terminals. A hollow shaft is slidably connected to the bottom of the grounding terminals.

[0008] As a further description of the above technical solution:

[0009] The front side of the grounding box is rotatably connected to multiple boxes, and each of the multiple boxes has a handle fixedly connected to its outer wall.

[0010] As a further description of the above technical solution:

[0011] A rubber pad is fixedly connected to the front side of the grounding box near the edge, and a rain cover is fixedly connected to the right side of the grounding box.

[0012] As a further description of the above technical solution:

[0013] The left side of the grounding box is threaded with multiple screws, and the outer wall of the multiple screws is provided with a nameplate.

[0014] As a further description of the above technical solution:

[0015] A rotating disk is fixedly connected to the front end of the threaded rod, and rubber pads are fixedly connected to the adjacent sides of the plurality of clamps.

[0016] As a further description of the above technical solution:

[0017] The front side of the junction box is rotatably connected to a junction box door, and a button is fixedly connected to the front side of the junction box door.

[0018] As a further description of the above technical solution:

[0019] A shelf is fixedly connected to the bottom of the junction box, and an insulating pad is fixedly connected to the top of the junction box.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the grounding box is taken to the desired location and the moving shaft is moved back and forth in the moving groove by pulling the clamp, the moving shaft and the spring shaft. When it is moved to a position where it can be fixed, the rotating disk is rotated so that the threaded rod drives the limiter to fix it on the fixed plate. This solves the problem of difficult installation of traditional grounding boxes in narrow spaces, improves work efficiency and reduces the total life cycle cost.

[0022] 2. In this utility model, one end of the cable sheath is connected to the connecting block with a screw, and then the voltage is transmitted to the copper busbar through the connecting plate. The voltage on the copper busbar is transmitted to one of the three different specifications of connecting terminals through the connecting box according to the voltage value, and then connected to the ground through the hollow shaft. If it is necessary to replace the connecting terminal, the hollow shaft is directly pulled out from the bottom of the connecting box, thereby removing the connecting box and replacing the internal connecting terminal. By replacing and combining different modules, the design requirements of cable lines with different voltage levels can be met, ensuring the safe and stable operation of the cable. Attached Figure Description

[0023] Figure 1 This is a front perspective view of the detachable modular cable grounding box proposed in this utility model;

[0024] Figure 2 This is a side view of the detachable modular cable grounding box proposed in this utility model;

[0025] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0026] Figure 4 This is a cross-sectional view of the detachable modular cable grounding box proposed in this utility model;

[0027] Figure 5 This is a cross-sectional view of the detachable modular cable grounding box proposed in this utility model;

[0028] Figure 6 This is a partial structural breakdown diagram of the detachable modular cable grounding box proposed in this utility model.

[0029] Legend:

[0030] 1. Grounding box; 2. Quick-release mechanism; 201. Electrical junction box; 202. Insulating sheet; 203. Screw 1; 204. Connecting block; 205. Electrical junction piece; 206. Screw 2; 207. Copper busbar; 208. Electrical junction shaft; 209. Electrical junction terminal; 210. Insulating porcelain bottle; 211. Hollow shaft; 3. Clamping plate; 4. Fixing block 1; 5. Threaded rod; 6. Fixing plate; 7. Limiter 1; 8. Moving shaft; 9. Moving groove; 10. Spring shaft; 11. Fixing block 3; 12. Limiter 2; 13. Ventilation hole; 14. Box door; 15. Handle; 16. Rubber pad 1; 17. Rotating disc; 18. Rubber pad 2; 19. Nameplate; 20. Screw 3; 21. Rain cover; 22. Electrical box door; 23. Button; 24. Shelf; 25. Insulating pad. Detailed Implementation

[0031] 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.

[0032] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 An embodiment of this utility model provides a detachable modular cable grounding box, including a grounding box 1. Ventilation holes 13 are provided on both the left and right sides of the grounding box 1. Multiple movable slots 9 are provided on the top of the grounding box 1. A fixing block 3 11 is fixedly connected to the front side of the inner wall of the movable slot 9. A spring shaft 10 is fixedly connected to the outer wall of the fixing block 3 11. A limiter 2 12 is fixedly connected to the outer wall of the spring shaft 10. A movable shaft 8 is fixedly connected to the rear end of the spring shaft 10. A clamping plate 3 is fixedly connected to the outer wall of the movable shaft 8. A fixing plate 6 is fixedly connected to the top of the clamping plate 3. A threaded rod 5 is threadedly connected to the inner wall of the fixing plate 6. A limiter 1 7 is fixedly connected to the rear end of the threaded rod 5. A fixing block 1 4 is threadedly connected to the outer wall of the threaded rod 5. A quick-release mechanism 2 is fixedly connected to the inner wall of the grounding box 1. The quick-release mechanism 2 is used for quick disassembly of components in the later stage.

[0033] Specifically, the ventilation hole 13 is designed to maintain good air circulation inside the grounding box 1, prevent excessive internal temperature, and ensure stable equipment operation. The design of the ventilation hole 13 can effectively dissipate heat without affecting the structural strength of the box. The design of the moving groove 9 takes into account the ease of operation, ensuring that the moving shaft 8 slides smoothly in the groove. At the same time, the cooperation between the fixing block 3 11 and the spring shaft 10 effectively limits the stroke of the moving shaft 8, preventing excessive movement that could damage the equipment. The threaded rod 5 on the fixing plate 6 can drive the limit switch 7 to fix the clamping plate 3 by rotation, so that the grounding box 1 can be stably installed in the required location. This structure greatly improves the work efficiency and reduces the total life cycle cost.

[0034] Please see the appendix Figure 4 Appendix Figure 5 and attached Figure 6 The quick-release mechanism 2 includes a connecting block 204. The right side of the connecting block 204 is fixedly connected to the inner wall of the grounding box 1. The inner wall of the connecting block 204 is threaded with a screw 203. The outer wall of the screw 203 is slidably connected with an insulating sheet 202. The left side of the connecting block 204 is fixedly connected with a contact piece 205. The inner wall of the contact piece 205 is threaded with a screw 206. The outer wall of the screw 206 is threaded with a copper busbar 207. The bottom of the copper busbar 207 is fixedly connected with multiple contact shafts 208. The outer walls of the multiple contact shafts 208 are all fixedly connected with contact boxes 201. The bottom end of the contact shaft 208 is slidably connected with a contact terminal 209. The outer wall of the contact terminal 209 is fixedly connected with an insulating porcelain bottle 210. The bottom of the contact terminal 209 is slidably connected with a hollow shaft 211.

[0035] Specifically, the design of the connecting block 204 ensures a tight connection between the components, the insulating sheet 202 effectively prevents current leakage, the cooperation between the contact piece 205 and the copper busbar 207 optimizes the current transmission efficiency, and the distribution of the contact shaft 208 improves the connection stability. The overall structure is both safe and efficient. The insulating porcelain insulator 210 can protect the contact terminal 209 from damage and ensure the safety of workers during maintenance, further improving the reliability of the grounding box 1. Through this ingenious design, the grounding box 1 achieves a perfect combination of high efficiency and long life while ensuring electrical safety, providing a solid guarantee for the stable operation of the power system and greatly improving user experience and economic benefits.

[0036] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4 Multiple doors 14 are rotatably connected to the front of the grounding box 1. Each door 14 has a handle 15 fixedly connected to its outer wall. A rubber pad 16 is fixedly connected to the front of the grounding box 1 near the edge. A rain cover 21 is fixedly connected to the right side of the grounding box 1. Multiple screws 20 are threadedly connected to the left side of the grounding box 1. A nameplate 19 is provided on the outer wall of the multiple screws 20.

[0037] Specifically, the nameplate 19 clearly indicates the technical parameters and usage precautions of the grounding box 1, making it easy for users to quickly understand the equipment information. The rubber pad 16 effectively isolates external moisture, and the rain cover 21 further enhances the waterproof performance, ensuring stable operation even in harsh weather conditions. The handle 15 is ergonomically designed, making it easy to open and close the box door 14. The overall design takes into account both practicality and aesthetics, improving the ease of use and environmental adaptability of the equipment.

[0038] Please see the appendix Figure 2 Appendix Figure 4 and attached Figure 5 A rotating disk 17 is fixedly connected to the front end of the threaded rod 5. Rubber pads 18 are fixedly connected to the adjacent sides of multiple clamping plates 3. An electrical box door 22 is rotatably connected to the front side of the electrical box 201. A button 23 is fixedly connected to the front side of the electrical box door 22. A shelf 24 is fixedly connected to the bottom of the electrical box 201. An insulating pad 25 is fixedly connected to the top of the electrical box 201.

[0039] Specifically, button 23 facilitates operation of the electrical box door 22, shelf 24 provides space for module installation, and insulating pad 25 enhances safety protection. The overall layout is reasonable and easy to operate, ensuring that the grounding box 1 can still operate efficiently and stably in complex environments, further improving the reliability and maintenance efficiency of the power system.

[0040] Working principle: First, take the grounding box 1 to the desired location, pull the clamp 3, and move it back and forth in the moving groove 9 through the moving shaft 8 and the spring shaft 10. When it is moved to a size that can be fixed, hold the rotating disk 17 and rotate the threaded rod 5 so that the threaded rod 5 drives the limit switch 7 to fix it on the fixing plate 6. This solves the problems of traditional grounding boxes 1, such as difficult installation in narrow spaces, time-consuming maintenance, and fixed specifications. It is especially suitable for high-voltage cable scenarios with complex construction conditions, frequent maintenance, and temporary deployment. It improves work efficiency and reduces the total life cycle cost.

[0041] Then, one end of the cable sheath is connected to the connecting block 204 via screw 203. The voltage is then transmitted to the copper busbar 207 via the contact piece 205. The voltage on the copper busbar 207 is transmitted to one of the three different types of contact terminals 209 according to the voltage value. The connection is then made to the ground via the hollow shaft 211. If it is necessary to replace the contact terminal 209, the hollow shaft 211 is pulled out from the bottom of the contact box 201 to remove the contact box 201. The insulating porcelain insulator 210 is then held to replace the contact terminal 209. By replacing and combining different modules, the design requirements of cable lines of different voltage levels can be met, effectively solving the three core problems of induced voltage, circulating current loss and overvoltage impact in the operation of high-voltage cables, and ultimately ensuring the safe and stable operation of the cable.

[0042] 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 detachable modular cable grounding box, comprising a grounding box (1), characterized in that: Ventilation holes (13) are provided on both the left and right sides of the grounding box (1). Multiple moving slots (9) are provided on the top of the grounding box (1). A fixing block three (11) is fixedly connected to the front side of the inner wall of the moving slot (9). A spring shaft (10) is fixedly connected to the outer wall of the fixing block three (11). A limiter two (12) is fixedly connected to the outer wall of the spring shaft (10). A moving shaft (8) is fixedly connected to the rear end of the spring shaft (10). A clamping plate (3) is fixedly connected to the outer wall of the moving shaft (8). A fixing plate (6) is fixedly connected to the top of the clamping plate (3). A threaded rod (5) is threadedly connected to the inner wall of the fixing plate (6). A limiter one (7) is fixedly connected to the rear end of the threaded rod (5). A fixing block one (4) is threadedly connected to the outer wall of the threaded rod (5). A quick-release mechanism (2) is fixedly connected to the inner wall of the grounding box (1). The quick-release mechanism (2) is used for quick disassembly of components later.

2. The detachable modular cable grounding box according to claim 1, characterized in that: The quick-release mechanism (2) includes a connecting block (204). The right side of the connecting block (204) is fixedly connected to the inner wall of the grounding box (1). A screw (203) is threaded onto the inner wall of the connecting block (204). An insulating sheet (202) is slidably connected to the outer wall of the screw (203). A contacting piece (205) is fixedly connected to the left side of the connecting block (204). A screw (206) is threaded onto the inner wall of the contacting piece (205). The outer wall of 206 is threaded with a copper busbar (207), and the bottom of the copper busbar (207) is fixedly connected with multiple electrical shafts (208). The outer walls of the multiple electrical shafts (208) are all fixedly connected with electrical boxes (201). The bottom end of the electrical shaft (208) is slidably connected with an electrical terminal (209). The outer wall of the electrical terminal (209) is fixedly connected with an insulating porcelain bottle (210), and the bottom of the electrical terminal (209) is slidably connected with a hollow shaft (211).

3. The detachable modular cable grounding box according to claim 1, characterized in that: The front side of the grounding box (1) is rotatably connected to multiple boxes (14), and the outer walls of the multiple boxes (14) are all fixedly connected to handles (15).

4. The detachable modular cable grounding box according to claim 1, characterized in that: A rubber pad (16) is fixedly connected to the front side of the grounding box (1) near the edge, and a rain cover (21) is fixedly connected to the right side of the grounding box (1).

5. The detachable modular cable grounding box according to claim 1, characterized in that: The grounding box (1) has a plurality of screws (20) threadedly connected to its left side, and a nameplate (19) is provided on the outer wall of the plurality of screws (20).

6. The detachable modular cable grounding box according to claim 1, characterized in that: The front end of the threaded rod (5) is fixedly connected to a rotating disk (17), and rubber pads (18) are fixedly connected to adjacent sides of the plurality of clamps (3).

7. The detachable modular cable grounding box according to claim 2, characterized in that: The front side of the junction box (201) is rotatably connected to the junction box door (22), and the front side of the junction box door (22) is fixedly connected to the button (23).

8. The detachable modular cable grounding box according to claim 2, characterized in that: The bottom of the junction box (201) is fixedly connected to a shelf (24), and the top of the junction box (201) is fixedly connected to an insulating pad (25).

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