Quickly-assembled busbar grounding wire clamp

Abstract

The utility model relates to the technical field of busbar grounding wire clamps, and discloses a fast-assembly busbar grounding wire clamp which comprises a supporting frame, a threaded column is slidably connected to the interior of the supporting frame, a nut is fixedly connected to the interior of the supporting frame, the threaded column is in threaded connection to the interior of the nut, an operating rod is fixedly connected to the top end of the threaded column, and the operating rod is in threaded connection with the interior of the nut. A fixing seat is fixedly connected to the bottom end of the threaded column, a connecting column is slidably connected to the interior of the fixing seat, a rotating disc is slidably connected to the outer wall of the connecting column, a limiting assembly is arranged at the top of the rotating disc, and a telescopic assembly is arranged on the outer wall of the operating rod. According to the utility model, the fixed seat is driven to move downwards along the supporting frame through the threaded cooperation of the threaded column and the nut, so that the clamping plate and the pressing block clamp the busbar from the two sides, and when the turntable is rotated, the connecting column is driven to rotate synchronously, and the tooth block slides in the tooth groove, so that the horizontal angle of the clamping plate can be adjusted; and the effects of quickly clamping the busbars with different sizes and adjusting the angles are achieved.

Description

A quick-install busbar grounding clamp Technical Field

[0001] This utility model relates to the technical field of busbar grounding clamps, and in particular to a quick-install busbar grounding clamp. Background Technology

[0002] In power system operation, the busbar serves as a key carrier for power transmission, and the reliability of its grounding protection device directly affects equipment safety and personnel protection. The busbar grounding clamp, as a core component for grounding connection, must quickly conduct current and release abnormal charges during short-circuit faults to prevent equipment overvoltage damage and the risk of electric shock. High-efficiency grounding clamps not only significantly shorten grounding operation time during power equipment maintenance and repair, improving work efficiency, but also ensure low-resistance grounding circuit connections through precise and stable clamping, guaranteeing the effectiveness of the grounding system. Especially in high-voltage, high-current substations and distribution systems, grounding clamps with rapid installation and adaptive adjustment functions can reduce power outage time and lower the probability of power accidents caused by poor grounding, which is of great significance to the stable operation of the power system.

[0003] Traditional busbar grounding clamps mainly adopt two technical approaches: one is a bolt-fastening structure, which fixes the busbar by manually tightening the bolts to drive the pressure plate to squeeze it, relying on the coordinated tightening of multiple sets of bolts to ensure contact pressure; the other is a spring-clamping structure, which uses the elastic force of a pre-compressed spring to push the clamping plate to clamp the busbar.

[0004] However, existing busbar grounding clamps generally suffer from problems such as long installation time, difficulty in quickly adapting to different sizes of busbars, and inconvenient angle adjustment, resulting in low grounding connection efficiency and insufficient contact reliability. During the maintenance of power equipment, traditional bolt-fastened grounding clamps require tightening multiple bolts one by one, which takes a long time for each installation and seriously extends the power outage maintenance time. At the same time, most products cannot adjust the clamp angle without disassembly, and the thickness and width of each busbar are different, which can easily cause insufficient contact area and increase grounding resistance. Therefore, a quick-install busbar grounding clamp is proposed to solve the above problems. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a quick-installation busbar grounding clamp, which aims to improve the problems of long installation time, difficulty in quickly adapting to different sizes of busbars, and inconvenient angle adjustment in the existing technology, resulting in low grounding connection efficiency and insufficient contact reliability.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A quick-install busbar grounding clamp includes a support frame, a threaded post slidably connected inside the support frame, a nut fixedly connected inside the support frame, the threaded post threadedly connected inside the nut, an operating rod fixedly connected to the top of the threaded post, a fixed seat fixedly connected to the bottom of the threaded post, a connecting post slidably connected inside the fixed seat, a turntable slidably connected to the outer wall of the connecting post, a limit component provided on the top of the turntable, and a telescopic component provided on the outer wall of the operating rod;

[0008] The limiting component includes a toothed block, the bottom of which is fixedly connected to the top of the turntable. A toothed groove is provided inside the fixing seat, and the toothed block fits into the toothed groove. A clamping plate is slidably connected to the outer wall of the connecting column. A pressure block is fixedly connected to the bottom end of the connecting column. A spring is sleeved on the outer wall of the connecting column, and the two ends of the spring are fixedly connected to the turntable and the clamping plate, respectively.

[0009] As a further description of the above technical solution:

[0010] The telescopic assembly includes a slide rod that is slidably connected to the outer wall of the operating rod, and a groove is provided inside the support frame.

[0011] As a further description of the above technical solution:

[0012] A second spring is installed inside the slide rod, and the two ends of the second spring are fixedly connected to the slide rod and the operating rod, respectively.

[0013] As a further description of the above technical solution:

[0014] A fixed frame is fixedly connected to the outer wall of the slide rod, and a support shaft is rotatably connected inside the fixed frame.

[0015] As a further description of the above technical solution:

[0016] A rotating block is fixedly connected to the outer wall of the support shaft, and a pressing rod is fixedly connected to one side of the rotating block.

[0017] As a further description of the above technical solution:

[0018] A transmission column is fixedly connected to the other side of the rotating block, and a pin is fixedly connected to one end of the transmission column.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the operating rod has multiple positioning holes, and the pin is slidably connected inside the positioning holes.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, after the operator places the clamp on the busbar, the threaded engagement of the threaded column and the nut drives the fixed seat to move down along the support frame, causing the pressure block at the bottom of the connecting column to press down on the busbar. At the same time, the spring provides elastic preload between the turntable and the clamping plate. The clamping plate and the pressure block clamp the busbar from both sides. When the turntable is rotated, it will drive the connecting column to rotate synchronously. At the same time, the toothed block slides in the tooth groove, thereby adjusting the horizontal angle of the clamping plate. This achieves the effect of quick clamping and angle adjustment for busbars of different sizes, solving the problems of long installation time, difficulty in quickly adapting to different sizes of busbars, and inconvenient angle adjustment, which leads to low grounding connection efficiency and insufficient contact reliability. This improves the convenience of the busbar grounding clamp.

[0023] 2. In this utility model, when the pressing rod is pressed, the rotating block rotates around the support shaft, causing the transmission column to disengage the pin from the positioning hole of the operating rod. The slide rod can slide along the operating rod to adjust the length. After the pressing rod is released, the pin re-engages into the positioning hole and locks in place. This achieves the effect of rapid adjustment and stable locking of the effective length of the operating rod, solving the problem that the traditional operating rod has a fixed length and is difficult to adapt to different working spaces, resulting in inconvenience in operation at heights or in narrow areas. This improves the applicability of the busbar grounding clamp. Attached Figure Description

[0024] Figure 1 is a three-dimensional schematic diagram of a quick-installation busbar grounding clamp proposed in this utility model;

[0025] Figure 2 is a schematic diagram of the internal structure of the support frame of a quick-installation busbar grounding clamp proposed in this utility model;

[0026] Figure 3 is a schematic diagram of the clamping plate structure of a quick-installation busbar grounding clamp proposed in this utility model;

[0027] Figure 4 is a schematic diagram of the internal structure of the slide bar of a quick-installation busbar grounding clamp proposed in this utility model;

[0028] Figure 5 is an enlarged view of point A in Figure 4.

[0029] Legend:

[0030] 1. Support frame; 2. Threaded column; 3. Operating lever; 4. Nut; 5. Fixed seat; 6. Turntable; 7. Gear groove; 8. Gear block; 9. Connecting column; 10. Clamping plate; 11. Spring 1; 12. Pressure block; 13. Groove; 14. Slide rod; 15. Spring 2; 16. Fixed frame; 17. Support shaft; 18. Rotating block; 19. Transmission column; 20. Pin; 21. Pressing rod; 22. Positioning hole. 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] Referring to Figures 1-3, one embodiment of this utility model is provided: a quick-install busbar grounding clamp, including a support frame 1, a threaded column 2 slidably connected inside the support frame 1, a nut 4 fixedly connected inside the support frame 1, the threaded column 2 threadedly connected inside the nut 4, an operating rod 3 fixedly connected to the top of the threaded column 2, a fixed seat 5 fixedly connected to the bottom of the threaded column 2, a connecting column 9 slidably connected inside the fixed seat 5, a turntable 6 slidably connected to the outer wall of the connecting column 9, a limit component provided on the top of the turntable 6, and a telescopic component provided on the outer wall of the operating rod 3;

[0033] The limiting component includes a toothed block 8, the bottom of which is fixedly connected to the top of the turntable 6. A toothed groove 7 is provided inside the fixing seat 5. The toothed block 8 and the toothed groove 7 are engaged. When the toothed block 8 is engaged with the toothed block 8 on the top of the turntable 6, it can provide reliable circumferential limiting. When the toothed block 8 is engaged with the toothed groove 7 of the fixing seat 5, it can effectively limit the rotation of the turntable 6, ensuring that the connecting column 9 remains stable under force and avoiding the risk of grounding failure due to loosening. A clamping plate 10 is slidably connected to the outer wall of the connecting column 9. A pressure block 12 is fixedly connected to the bottom end of the connecting column 9. A spring 11 is sleeved on the outer wall of the connecting column 9. The two ends of the spring 11 are fixedly connected to the turntable 6 and the clamping plate 10 respectively, which can provide a stable elastic preload between the turntable 6 and the clamping plate 10, ensuring that the clamping plate 10 and the pressure block 12 can tightly clamp busbars of different sizes.

[0034] Referring to Figures 1, 4, and 5, the telescopic assembly includes a slide rod 14, which is slidably connected to the outer wall of the operating rod 3. A groove 13 is provided inside the support frame 1. A second spring 15 is installed inside the slide rod 14, with both ends of the second spring 15 fixedly connected to the slide rod 14 and the operating rod 3, respectively. In its natural state, the spring provides an outward thrust, keeping the slide rod 14 extended. A fixed frame 16 is fixedly connected to the outer wall of the slide rod 14. A support shaft 17 is rotatably connected inside the fixed frame 16. A rotating block 18 is fixedly connected to the outer wall of the support shaft 17. A pressing rod 21 is fixedly connected to one side of the rotating block 18, and a transmission rod 21 is fixedly connected to the other side of the rotating block 18. The moving column 19 and the transmission column 19 are fixedly connected to a pin 20 at one end. When the pressing rod 21 is pressed, the rotating block 18 rotates around the support shaft 17, which drives the transmission column 19 to push the pin 20 out of the positioning hole 22 of the operating rod 3. At this time, the slide rod 14 can slide freely along the operating rod 3 to realize the adjustment of the length of the operating rod 3. The outer wall of the operating rod 3 has multiple positioning holes 22. The pin 20 is slidably connected inside the positioning hole 22. After the pressing rod 21 is released, the elastic force of the spring 15 pushes the slide rod 14 to reset, so that the pin 20 is re-engaged into the corresponding positioning hole 22, forming a firm lock, ensuring that the operating rod 3 remains stable after the length is adjusted.

[0035] Working principle: When using this busbar grounding clamp, the operator places the clamp on the busbar to be grounded. Because the threaded post 2 and the nut 4 are threadedly engaged, the threaded post 2 drives the fixed seat 5 to move downward along the support frame 1. During this process, the turntable 6 can rotate relative to the connecting post 9. When the toothed block 8 engages with the toothed groove 7 of the fixed seat 5, the rotation of the turntable 6 is restricted, ensuring that the connecting post 9 is under stable force. The pressure block 12 at the bottom of the connecting post 9 presses down on the busbar. At the same time, the spring 11 provides elastic preload between the turntable 6 and the clamping plate 10. The clamping plate 10, together with the pressure block 12, clamps the busbar from both sides, adapting to different sizes of busbars, ensuring a firm clamping and preventing loosening. Since the toothed block 8 and the toothed groove 7 are separable engaging structures, when the turntable 6 is rotated, it will drive the connecting post 9 to rotate synchronously. At the same time, the toothed block 8 slides in the toothed groove 7, thereby adjusting the horizontal angle of the clamping plate 10 until the clamping plate 10 is completely in contact with the surface of the busbar, thus achieving the effect of quick clamping and easy adjustment.

[0036] When the effective length of the operating lever 3 needs to be adjusted, press the pressing lever 21, the rotating block 18 rotates around the support shaft 17, the transmission column 19 drives the pin 20 to exit from the positioning hole 22 of the operating lever 3, and the slide bar 14 can slide along the operating lever 3. At this time, the slide bar 14 can be pulled to adjust the length. Release the pressing lever 21 so that the pin 20 can be re-engaged into the corresponding positioning hole 22, realizing the stable locking of the operating lever 3 after extension and retraction, adapting to different working space requirements.

[0037] 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 quick-installation busbar grounding clamp, comprising a support frame (1), characterized in that: A threaded column (2) is slidably connected inside the support frame (1), and a nut (4) is fixedly connected inside the support frame (1). The threaded column (2) is threadedly connected inside the nut (4). An operating rod (3) is fixedly connected to the top of the threaded column (2), and a fixed seat (5) is fixedly connected to the bottom of the threaded column (2). A connecting column (9) is slidably connected inside the fixed seat (5), and a turntable (6) is slidably connected to the outer wall of the connecting column (9). A limit component is provided on the top of the turntable (6), and a limit assembly is provided on the outer wall of the operating rod (3). It has a telescopic component; the limiting component includes a toothed block (8), the bottom of which is fixedly connected to the top of the turntable (6), the fixed seat (5) has a toothed groove (7) inside, the toothed block (8) fits into the toothed groove (7), the outer wall of the connecting column (9) is slidably connected to a clamping plate (10), the bottom end of the connecting column (9) is fixedly connected to a pressure block (12), the outer wall of the connecting column (9) is fitted with a spring (11), and the two ends of the spring (11) are fixedly connected to the turntable (6) and the clamping plate (10) respectively.

2. The quick-installation busbar grounding clamp according to claim 1, characterized in that: The telescopic assembly includes a slide rod (14), which is slidably connected to the outer wall of the operating rod (3), and a groove (13) is provided inside the support frame (1).

3. The quick-installation busbar grounding clamp according to claim 2, characterized in that: The slide rod (14) is equipped with a second spring (15), and the two ends of the second spring (15) are fixedly connected to the slide rod (14) and the operating rod (3) respectively.

4. A quick-installation busbar grounding clamp according to claim 3, characterized in that: A fixed frame (16) is fixedly connected to the outer wall of the slide rod (14), and a support shaft (17) is rotatably connected inside the fixed frame (16).

5. A quick-installation busbar grounding clamp according to claim 4, characterized in that: A rotating block (18) is fixedly connected to the outer wall of the support shaft (17), and a pressing rod (21) is fixedly connected to one side of the rotating block (18).

6. A quick-installation busbar grounding clamp according to claim 5, characterized in that: A transmission column (19) is fixedly connected to the other side of the rotating block (18), and a pin (20) is fixedly connected to one end of the transmission column (19).

7. A quick-installation busbar grounding clamp according to claim 6, characterized in that: The operating lever (3) has multiple positioning holes (22) on its outer wall, and the pin (20) is slidably connected inside the positioning holes (22).

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