High-voltage cable direct grounding box

Abstract

The utility model relates to the technical field of grounding wires, and discloses a high-voltage cable direct grounding box, which comprises a grounding box body, one side of the grounding box body is provided with an installation groove, the installation groove is internally provided with a box door, one side of the box door is fixedly connected with a grip, one side of the box door is provided with a sealing frame, and the upper surface of the grounding box body is provided with a fastening assembly. The fastening assembly comprises a protective top, the protective top is fixedly connected to the upper surface of the grounding box body, the upper surface of the grounding box body is rotatably connected with a screw rod, and the outside of the screw rod is in threaded connection with a moving rod. The movable rod moves along the screw rod to drive the connecting frame to drive the limiting frame to press the box door, the inserting rod is matched to be inserted into the inserting hole and lock the rotating handle, the box door is effectively prevented from falling off or moving, and meanwhile the protective shell and the shell cover protect the inserting hole from being blocked; the line tightening assembly clamps and limits a line through double clamping rods, and connection looseness caused by wind power vibration is reduced.

Description

Technical Field

[0001] This utility model relates to the field of grounding wire technology, and in particular to a direct grounding box for high-voltage cables. Background Technology

[0002] High-voltage cables are power cables used to transmit high-voltage electrical energy. They are key equipment in power systems that connect power plants, substations, transmission lines, and end users. Their core function is to efficiently and safely transmit large amounts of electrical energy while reducing energy loss and electromagnetic interference. High-voltage cable direct grounding boxes are critical safety devices in high-voltage cable systems. They are used to directly ground the metal sheath of the cable to prevent overvoltage of the sheath from harming the cable and personnel.

[0003] A search revealed Chinese patent CN222601964U, which discloses a wall-mounted direct grounding box. Traditional wall-mounted direct grounding boxes typically require multiple bolts to secure the box body and cover to ensure good sealing. Opening the box involves repeatedly unscrewing these bolts, which is cumbersome and inefficient. Furthermore, with repeated use, the bolts wear down, eventually preventing the cover from opening properly, thus reducing its practicality. Therefore, a sliding groove combined with a locking strip allows for easy closing of the cover, and a fixing rod quickly secures the box body and cover. This significantly improves ease of use and efficiency, successfully avoiding the drawbacks of traditional bolt fixing and enhancing practicality.

[0004] Although the aforementioned grounding box can be opened quickly, this is achieved solely through the cooperation of a sliding groove and a locking strip. However, the connection between the sliding groove and the locking strip reduces the tightness of the connection between the box cover and the box body. Furthermore, the aforementioned grounding box uses a rotating fixing rod to limit the box cover. Without this fixing rod, the fixing rod is prone to displacement or detachment from the box body due to environmental vibrations, which can lead to the box cover falling off. In the existing technology, the box cover is connected to the box body using multiple sets of bolts and drilling, which is quite complicated. This requires the use of tools to disassemble multiple sets of bolts during maintenance, resulting in low maintenance efficiency. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a direct grounding box for high-voltage cables.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-voltage cable direct grounding box, including a grounding box body, an installation groove is provided on one side of the grounding box body, a box door is provided inside the installation groove, a handle is fixedly connected to one side of the box door, a sealing frame is provided on one side of the box door, and a fastening component is provided on the upper surface of the grounding box body;

[0007] The fastening assembly includes a protective top, which is fixedly connected to the upper surface of the grounding box. A screw is rotatably connected to the upper surface of the grounding box. A movable rod is threaded onto the external surface of the screw. Both ends of the movable rod are fixedly connected to connecting frames. Two limiting frames are fixedly connected to one side of the two connecting frames.

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

[0009] Both sides of the grounding box are fixedly connected to fixed rods, the connecting frame is slidably connected to the outside of the fixed rods, and the upper surface of the protective top is rotatably connected to a handle.

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

[0011] The lower surface of the throttle and one end of the screw are both fixedly connected to bevel gears, and the two bevel gears are meshed together. An inner groove is opened inside the throttle, and a limit ring is slidably connected inside the inner groove. A plug rod is fixedly connected to the middle of the limit ring.

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

[0013] One end of the insertion rod is fixedly connected to a water-blocking cap, the inner wall of the inner groove is fixedly connected to a spring, the spring is fixedly connected to the upper surface of the limiting ring, and the upper surface of the protective top is provided with multiple insertion holes, which are distributed in a ring.

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

[0015] A protective shell is fixedly connected to the upper surface of the protective top, a shell cover is hinged to the upper surface of the protective shell, a counterweight is fixedly connected to one side of the shell cover, and the sealing frame is made of silicone.

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

[0017] The lower surface of the grounding box is provided with a wire tensioning assembly, which includes two slide rails. The two slide rails are fixedly connected to the lower surface of the grounding box, and a fixing shell is fixedly connected to the lower surface of the grounding box.

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

[0019] The fixed shell is internally rotatably connected to a bidirectional stud, one end of which is fixedly connected to a handle. The external threads of the bidirectional stud are connected to two clamping rods, and the two ends of the clamping rods are slidably connected to the inside of two slide rails.

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

[0021] 1. This utility model, through the setting of fastening components, allows the grounding box door to be securely locked to one side of the grounding box door after it is inserted into the mounting groove of the grounding box body. This is achieved by moving the grounding box outside the screw rod using a moving rod, which facilitates the connection of the connecting frame to tightly press the limiting frame against one side of the grounding box door. This ensures the door is firmly locked to one side of the grounding box body, reducing the possibility of the door falling off or shifting. Furthermore, the insertion of the plug rod into the socket facilitates locking the rotating handle, further reducing the possibility of displacement of the limiting frame after locking, thus improving the tightness of the door after installation. Simultaneously, the protective shell and cover help protect the socket, reducing the possibility of impurities clogging it.

[0022] 2. By setting up a wire tightening component, this utility model uses two close-to-each clamping rods to clamp and limit the connected wires after wiring through the grounding box, which further improves the tightness of the wire connection and reduces the phenomenon of wire vibration and movement under wind conditions, thus preventing the wire connection from becoming loose. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0024] Figure 2 This is a partial structural diagram of the connection point of the connecting frame proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the sealing frame structure proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the limiting frame structure proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of the insertion rod structure proposed in this utility model;

[0028] Figure 6 This is a schematic diagram of the mounting groove structure proposed in this utility model;

[0029] Figure 7 This is a schematic diagram of the slide rail structure proposed in this utility model;

[0030] Figure 8 This is a schematic diagram of the clamping rod structure proposed in this utility model.

[0031] Legend:

[0032] 1. Grounding box; 2. Mounting groove; 3. Box door; 4. Handle; 5. Sealing frame; 6. Protective top; 7. Screw; 8. Moving rod; 9. Connecting frame; 10. Limiting frame; 11. Fixing rod; 12. Turning handle; 13. Bevel gear; 14. Inner groove; 15. Limiting ring; 16. Spring; 17. Insert rod; 18. Water-blocking cover; 19. Insertion hole; 20. Protective shell; 21. Shell cover; 22. Counterweight; 23. Slide rail; 24. Fixing shell; 25. Double-acting stud; 26. Handle; 27. Clamping rod. Detailed Implementation

[0033] 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.

[0034] As attached Figure 1-8 As shown, one embodiment of this utility model is provided: a high-voltage cable direct grounding box, including a grounding box body 1, a mounting groove 2 is provided on one side of the grounding box body 1 for two sections of the box door 3, the box door 3 is provided inside the mounting groove 2, a handle 4 is fixedly connected to one side of the box door 3, and a sealing frame 5 is provided on one side of the box door 3. Through the elasticity of the sealing frame 5, the box door 3 can be squeezed into the sealing frame 5 when squeezed, thereby enhancing the sealing performance between the box door 3 and the grounding box body 1. Fastening components are provided on the upper surface of the grounding box body 1.

[0035] The fastening assembly includes a protective top 6, which is fixedly connected to the upper surface of the grounding box 1. A screw 7 is rotatably connected to the upper surface of the grounding box 1. A moving rod 8 is threaded onto the outside of the screw 7. Both ends of the moving rod 8 are fixedly connected to connecting frames 9, which facilitates the simultaneous movement of the two connecting frames 9. Two limiting frames 10 are fixedly connected to one side of the two connecting frames 9, which limit the movement of the box door 3.

[0036] As attached Figure 2 As shown, both sides of the grounding box 1 are fixedly connected to a fixing rod 11, and the connecting frame 9 is slidably connected to the outside of the fixing rod 11. The upper surface of the protective top 6 is rotatably connected to a handle 12. The upper surface of the protective top 6 is provided with multiple insertion holes 19, which are arranged in a ring to facilitate the insertion of the insertion rod 17 and thus limit the position of the handle 12.

[0037] As attached Figure 5As shown, bevel gears 13 are fixedly connected to the lower surface of the throttle 12 and one end of the screw 7. The two bevel gears 13 are meshed together. An inner groove 14 is opened inside the throttle 12. A limit ring 15 is slidably connected inside the inner groove 14 to limit the insertion rod 17 and prevent it from falling out of the inner groove 14. The insertion rod 17 is fixedly connected to the middle of the limit ring 15. A water-blocking cover 18 is fixedly connected to one end of the insertion rod 17 to reduce the phenomenon of water seeping into the inner groove 14 through the joint between the insertion rod 17 and the inner groove 14. A spring 16 is fixedly connected to the inner wall of the inner groove 14. The spring 16 is fixedly connected to the upper surface of the limit ring 15 and pushes the insertion rod 17.

[0038] As attached Figure 1 As shown, a protective shell 20 is fixedly connected to the upper surface of the protective top 6, and a shell cover 21 is hinged to the upper surface of the protective shell 20 for protecting the insertion hole 19.

[0039] As attached Figure 7 As shown, a counterweight 22 is fixedly connected to one side of the cover 21, which is used to make the cover 21 fit against the upper surface of the protective shell 20 under the action of gravity.

[0040] As attached Figure 3 As shown, the sealing frame 5 is made of silicone. When the door 3 is pressed against the mounting groove 2, the sealing frame 5 will deform through the silicone material.

[0041] As attached Figure 6 As shown, a wire tensioning assembly is provided on the lower surface of the grounding housing 1. The wire tensioning assembly includes two slide rails 23, which are fixedly connected to the lower surface of the grounding housing 1. A fixed housing 24 is fixedly connected to the lower surface of the grounding housing 1. A bidirectional stud 25 is rotatably connected inside the fixed housing 24, and the outside is set with threads in the opposite direction. A handle 26 is fixedly connected to one end of the bidirectional stud 25.

[0042] As attached Figure 7 As shown, the external thread of the bidirectional stud 25 has two clamping rods 27. The two ends of the two clamping rods 27 are slidably connected to the inside of the two slide rails 23. The upper ends of the clamping rods 27 are set in an inverted T shape to match the inner wall of the slide rails 23.

[0043] Working principle: After the grounding box 1 is repaired, when the box door 3 needs to be installed in the grounding box 1, there is a certain distance between the two limit brackets 10 and one side of the grounding box 1. Then, the box door 3 is first inserted from below the two limit brackets 10 and between the two limit brackets 10 and the grounding box 1. Then, the box door 3 drives the sealing frame 5 to be inserted into the installation groove 2. Then, the water-blocking cover 18 is lifted, which drives the insertion rod 17 to disengage from the corresponding insertion hole 19. Then, the handle 12 is turned, which drives the corresponding bevel gear 13 to rotate. One bevel gear 13 drives the other bevel gear 13 to rotate, which in turn drives the other bevel gear 13 to rotate. 13 drives the screw 7 to rotate, causing the screw 7 to drive the moving rod 8 to move from front to back on the upper surface of the grounding box 1. When the moving rod 8 drives the connecting brackets 9 on both sides to slide outside the fixed rod 11, it drives the two limiting brackets 10 to move closer to the side of the box door 3 until it presses the box door 3, thus making the box door 3 securely installed. Then the cover 21 is released. Under the action of the spring 16 pushing the limiting ring 15 and then pushing the insertion rod 17, the insertion rod 17 can be inserted into the inside of the insertion hole 19, thus limiting the throttle 12. Then the cover 21 is placed on top of the protective shell 20 under the gravity of the counterweight 22, which can block the insertion hole 19.

[0044] After wiring, turn handle 26 to make handle 26 drive double stud 25 to rotate. Under the action of the opposite direction threads on the outside of double stud 25, the two clamping rods 27 move closer to each other when sliding inside slide rail 23, thereby limiting and clamping the two sides of the line.

[0045] 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 high voltage cable direct grounding box comprising a grounding box body (1), characterized in that: The side of the grounding box (1) is provided with a mounting groove (2), the inside of the mounting groove (2) is provided with a box door (3), one side of the box door (3) is fixedly connected with a handle (4), one side of the box door (3) is provided with a sealing frame (5), the upper surface of the grounding box (1) is provided with a fastening assembly; The fastening assembly comprises a protective top (6), the protective top (6) is fixedly connected to the upper surface of the grounding box (1), the upper surface of the grounding box (1) is rotatably connected with a screw rod (7), the outer thread of the screw rod (7) is connected with a moving rod (8), the both ends of the moving rod (8) are fixedly connected with a connecting frame (9), the side of the two connecting frames (9) is fixedly connected with two limiting frames (10).

2. The high voltage cable direct grounding box according to claim 1, characterized in that: The both sides of the grounding box (1) are fixedly connected with a fixed rod (11), the connecting frame (9) is slidably connected to the outside of the fixed rod (11), the upper surface of the protective top (6) is rotatably connected with a rotating handle (12).

3. The high voltage cable direct grounding box according to claim 2, characterized in that: The lower surface of the rotating handle (12) and one end of the screw rod (7) are fixedly connected with a bevel gear (13), the two bevel gears (13) are meshingly connected, the inside of the rotating handle (12) is provided with an inner groove (14), the inside of the inner groove (14) is slidably connected with a limiting ring (15), the middle part of the limiting ring (15) is fixedly connected with a plug rod (17).

4. The high voltage cable direct grounding box according to claim 3, characterized in that: One end of the plug rod (17) is fixedly connected with a water blocking cover (18), the inner wall of the inner groove (14) is fixedly connected with a spring (16), the spring (16) is fixedly connected to the upper surface of the limiting ring (15), the upper surface of the protective top (6) is provided with a plurality of plug holes (19), the plurality of plug holes (19) are annularly distributed.

5. The high voltage cable direct grounding box of claim 1, wherein: The upper surface of the protective top (6) is fixedly connected with a protective shell (20), the upper surface of the protective shell (20) is hingedly connected with a shell cover (21), one side of the shell cover (21) is fixedly connected with a counterweight (22), the sealing frame (5) is made of silica gel.

6. The high voltage cable direct grounding box of claim 1, wherein: The lower surface of the grounding box (1) is provided with a line tightening assembly, the line tightening assembly comprises two slide rails (23), the two slide rails (23) are fixedly connected to the lower surface of the grounding box (1), the lower surface of the grounding box (1) is fixedly connected with a fixed shell (24).

7. A high voltage cable direct grounding box according to claim 6, characterized in that: The inside of the fixed shell (24) is rotatably connected with a bidirectional screw post (25), one end of the bidirectional screw post (25) is fixedly connected with a handle (26), the outside of the bidirectional screw post (25) is threadedly connected with two clamping rods (27), the both ends of the two clamping rods (27) are slidably connected to the inside of the two slide rails (23).

Images