A capacitor bushing conductor rod test clamp

Abstract

This utility model relates to the field of conductive rod test clamp technology, and in particular to a capacitor sleeve conductive rod test clamp, comprising two lower clamps and one upper clamp. The two lower clamps are symmetrically distributed front to back. A first fixed shaft is fixedly installed between the inner sides of the right end of the two lower clamps. The upper clamp is located above the two lower clamps. A connecting block is fixedly installed at the bottom of the upper clamp and is rotatably sleeved on the first fixed shaft. The top of the left end of the two lower clamps and the bottom of the left end of the upper clamp are both provided with clamping grooves. The width between the two lower clamps is greater than the width of the upper clamp. The left end of the upper clamp can be flipped to be between the two lower clamps. This utility model can clamp conductive rods of different sizes through the staggered closure of the upper and lower clamps. The clamped conductive rod is located between the clamping grooves on the upper and lower clamps. When pulled, the conductive rod will move in the clamping groove but will not disengage from the clamping groove, which increases the stability of clamping the conductive rod.

Description

Technical Field

[0001] This utility model relates to the field of conductive rod test clamp technology, and in particular to a conductive rod test clamp for capacitor sleeves. Background Technology

[0002] The capacitor bushing conductive rod test clamp is a tool specifically designed for testing the conductive rods of capacitor bushings in power systems. When testing capacitor equipment, the test clamp assists in the operation, ensuring a safe and stable connection to the conductive rod during electrical testing and measurement. This allows for accurate acquisition of relevant test data and avoids test errors or safety hazards caused by poor or unstable contact.

[0003] However, traditional alligator clips have a small opening adjustment range, making it difficult to adapt to conductive rods of different diameters or shapes (such as round or irregular shapes). This may require frequent clamp replacements or use with multiple models, increasing operating costs. Furthermore, the clamp head of the alligator clip is in an expanded shape when opened, making it prone to falling off under pulling force, posing a safety hazard due to unstable clamping. Therefore, this application proposes a capacitor sleeve conductive rod test clamp. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a capacitor bushing conductive rod test clamp to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a capacitor bushing conductive rod test clamp, comprising two lower clamps and one upper clamp, the two lower clamps being symmetrically distributed front to back, a first fixed shaft being fixedly installed between the inner sides of the right ends of the two lower clamps, the upper clamp being located above the two lower clamps, a connecting block being fixedly installed at the bottom of the upper clamp, and the connecting block being rotatably sleeved on the first fixed shaft, clamping grooves being provided at the top left ends of the two lower clamps and the bottom left end of the upper clamp, the width between the two lower clamps being greater than the width of the upper clamp, and the left end of the upper clamp being able to be flipped between the two lower clamps.

[0006] Furthermore, a lower connecting plate is fixedly installed on the right end of the two lower clamping plates, and a second fixed shaft is fixedly installed between the inner walls of the two lower clamping plates and at a position near the right end of the clamping groove. A rod groove extending into the center of the left end of the lower connecting plate is provided, and an elastic pull-back assembly that bypasses the second fixed shaft and connects to the bottom of the upper clamping plate is provided in the rod groove.

[0007] Furthermore, the elastic pull-back assembly includes a limiting ring, a sliding block, a rope, and a spring. The limiting ring is fixedly installed at the opening of the rod groove, the sliding block is located at the inner end of the rod groove, one end of the rope is fixedly connected to the sliding block, and the other end of the rope passes through the limiting ring and around the second fixed shaft to connect to the bottom of the upper clamping plate. The spring is sleeved on the rope, and both ends of the spring are fixedly connected to the sliding block and the limiting ring, respectively.

[0008] Furthermore, a groove is provided at the middle position of the surface of the second fixed shaft. After the rope passes through the groove on the surface of the second fixed shaft, the part that connects with the sliding block is in a horizontal state, and the rope does not contact the bottom of the connecting block.

[0009] Furthermore, both the lower and upper clamping plates are covered with an insulating protective layer, and each clamping groove is equipped with neatly arranged anti-slip teeth.

[0010] Furthermore, an upper connecting plate is fixedly installed on the right end of the upper clamping plate, and a wire is fixedly connected to the right end of the upper clamping plate and located at the bottom of the upper connecting plate. A protective sleeve covering the wire is fixedly installed at the bottom of the upper connecting plate.

[0011] Furthermore, the sidewall of the sliding block is evenly provided with multiple ball grooves, and each ball is provided in each ball groove. The sidewall of each ball extending out of the ball groove is in contact with the inner wall of the rod groove.

[0012] The beneficial effects of this utility model are:

[0013] The staggered closed structure of the upper and lower clamping plates, along with the grooves on the inner walls of the upper and lower clamping plates, allows for the clamping of conductive rods of different sizes. When the conductive rod is clamped in the groove, the elastic pull-back assembly maintains a constant tension on the upper clamping plate. If an external force pulls on the rod, it may briefly separate from the lower clamping plate due to the pressure exerted by the elastic pull-back assembly. However, the upper clamping plate will quickly return to its original position and re-clamp the conductive rod under the tension applied by the elastic pull-back assembly. In contrast, traditional alligator clips are prone to displacement of the clamp and conductive rod when pulled and cannot automatically return to their original clamping position. This test clip, with its unique self-resetting mechanism, significantly improves clamping stability and effectively avoids data errors and safety risks caused by loosening during testing. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the overall closed structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall opened structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection between the upper and lower clamping plates of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the lower clamping plate of this utility model;

[0019] Figure 5 This is a schematic diagram of the upper clamping plate of this utility model;

[0020] Figure 6 This is an enlarged structural diagram of point A in this utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the sliding block of this utility model;

[0022] In the diagram: 1. Lower clamping plate; 2. First fixed shaft; 3. Lower connecting plate; 4. Upper clamping plate; 5. Connecting block; 6. Clamping groove; 7. Upper connecting plate; 8. Second fixed shaft; 9. Rod groove; 10. Limiting ring; 11. Sliding block; 12. Rope; 13. Spring; 14. Wire; 15. Protective sleeve; 16. Ball groove. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Please see Figures 1-7 This utility model provides a technical solution: a capacitor sleeve conductive rod test clamp, including two lower clamping plates 1 and one upper clamping plate 4. The two lower clamping plates 1 are symmetrically distributed front and back. A first fixed shaft 2 is fixedly installed between the inner sides of the right end of the two lower clamping plates 1. The upper clamping plate 4 is located above the two lower clamping plates 1. A connecting block 5 is fixedly installed at the bottom of the upper clamping plate 4, and the connecting block 5 is rotatably sleeved on the first fixed shaft 2. The top of the left end of the two lower clamping plates 1 and the bottom of the left end of the upper clamping plate 4 are both provided with clamping grooves 6. The width between the two lower clamping plates 1 is greater than the width of the upper clamping plate 4, and the left end of the upper clamping plate 4 can be flipped to the space between the two lower clamping plates 1. Through the staggered closure of the upper clamping plate 4 and the lower clamping plate 1, conductive rods of different sizes can be clamped. The clamped conductive rod is located between the clamping grooves 6 on the upper clamping plate 4 and the lower clamping plate 1. When pulled, the conductive rod will move in the clamping grooves 6, but will not detach from the clamping grooves 6.

[0025] like Figure 1 and Figure 2As shown, a lower connecting plate 3 is fixedly installed on the right end of the two lower clamping plates 1. A second fixing shaft 8 is fixedly installed between the inner walls of the two lower clamping plates 1 and at a position close to the right end of the clamping groove 6. A rod groove 9 extending into the center of the left end of the lower connecting plate 3 is provided. An elastic pull-back assembly is provided in the rod groove 9, which bypasses the second fixing shaft 8 and connects to the bottom of the upper clamping plate 4. The elastic pull-back assembly can reset the upper clamping plate 4.

[0026] like Figure 3 , Figure 6 and Figure 7 As shown, the elastic pull-back assembly includes a limiting ring 10, a sliding block 11, a rope 12, and a spring 13. The limiting ring 10 is fixedly installed at the opening of the rod groove 9. The sliding block 11 is located at the inner end of the rod groove 9. One end of the rope 12 is fixedly connected to the sliding block 11, and the other end of the rope 12 passes through the limiting ring 10 and around the second fixed shaft 8 to connect to the bottom of the upper clamping plate 4. The spring 13 is sleeved on the rope 12, and both ends of the spring 13 are fixedly connected to the sliding block 11 and the limiting ring 10, respectively. When the upper connecting plate 7 and the lower connecting plate 3 are pinched, the upper connecting plate 7 drives the upper clamping plate 4 to... The first fixed shaft 2 is rotated around the center angle, thereby opening the upper clamping plate 4 and the lower clamping plate 1. When the upper clamping plate 4 is opened, it will pull one end of the rope 12, causing the rope 12 to pull the sliding block 11 to move in the rod groove 9 and compress the spring 13. Then the conductive rod is clamped in the clamping groove 6 on the upper clamping plate 4 and the two lower clamping plates 1. Then the upper connecting plate 7 is released, and the compressed spring 13 will release its elasticity and push the sliding block 11 to move towards the inner end of the rod groove 9, thereby pulling the rope 12 to move the left end of the upper clamping plate 4 between the two lower clamping plates 1, thereby clamping the upper clamping plate 4 and the lower clamping plate 1 onto the conductive rod.

[0027] like Figure 3 As shown, a groove is provided at the middle position of the surface of the second fixed shaft 8. The part of the rope 12 that connects to the sliding block 11 after passing through the groove on the surface of the second fixed shaft 8 is in a horizontal state, and the rope 12 does not contact the bottom of the connecting block 5. This can prevent the rope 12 from contacting other structures, thereby preventing the rope 12 from being damaged by friction.

[0028] like Figure 1 and Figure 2 As shown, both the lower clamping plate 1 and the upper clamping plate 4 are covered with an insulating protective layer. Each clamping groove 6 has neatly arranged anti-slip teeth inside. The insulating protective layer can protect and insulate the lower clamping plate 1 and the upper clamping plate 4, while the anti-slip teeth in the clamping groove 6 can increase the friction between the lower clamping plate 1 and the upper clamping plate 4 and the conductive rod, thereby improving the stability of clamping with the conductive rod.

[0029] like Figure 1 and Figure 5As shown, an upper connecting plate 7 is fixedly installed on the right end of the upper clamping plate 4. A wire 14 is fixedly connected to the right end of the upper clamping plate 4 and at the bottom of the upper connecting plate 7. A protective sleeve 15 covering the wire 14 is fixedly installed at the bottom of the upper connecting plate 7. The wire 14 is connected to the metal structure inside the upper clamping plate 4 to realize the conduction of current. The protective sleeve 15 can protect the wire 14 and also play a role in positional constraint of the wire 14.

[0030] like Figure 6 and Figure 7 As shown, the sidewall of the sliding block 11 is evenly provided with a plurality of ball grooves 16, and a ball is provided in each ball groove 16. Each ball extends out of the sidewall of the ball groove 16 and contacts the inner wall of the rod groove 9. The ball can reduce the contact area between the outside of the sliding block 11 and the inner wall of the rod groove 9, thereby reducing the friction between the two and making the sliding block 11 move more smoothly in the rod groove 9.

[0031] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A capacitor bushing conductive rod test clamp, comprising two lower clamping plates (1) and one upper clamping plate (4), characterized in that, The two lower clamping plates (1) are symmetrically distributed front and back. A first fixed shaft (2) is fixedly installed between the inner sides of the right end of the two lower clamping plates (1). The upper clamping plate (4) is located above the two lower clamping plates (1). A connecting block (5) is fixedly installed at the bottom of the upper clamping plate (4). The connecting block (5) is rotatably sleeved on the first fixed shaft (2). A clamping groove (6) is opened at the top of the left end of the two lower clamping plates (1) and the bottom of the left end of the upper clamping plate (4). The width between the two lower clamping plates (1) is greater than the width of the upper clamping plate (4). The left end of the upper clamping plate (4) can be flipped between the two lower clamping plates (1).

2. The capacitor bushing conductive rod test clamp according to claim 1, characterized in that, A lower connecting plate (3) is fixedly installed on the right end of the two lower clamping plates (1). A second fixed shaft (8) is fixedly installed between the inner walls of the two lower clamping plates (1) and at a position close to the right end of the clamping groove (6). A rod groove (9) extending into the center of the left end of the lower connecting plate (3) is provided. An elastic pull-back assembly is provided in the rod groove (9) that bypasses the second fixed shaft (8) and connects to the bottom of the upper clamping plate (4).

3. The capacitor bushing conductive rod test clamp according to claim 2, characterized in that, The elastic pull-back assembly includes a limiting ring (10), a sliding block (11), a rope (12), and a spring (13). The limiting ring (10) is fixedly installed at the opening of the rod groove (9). The sliding block (11) is located at the inner end of the rod groove (9). One end of the rope (12) is fixedly connected to the sliding block (11), and the other end of the rope (12) passes through the limiting rings (10) and around the second fixed shaft (8) to connect to the bottom of the upper clamping plate (4). The spring (13) is sleeved on the rope (12), and both ends of the spring (13) are fixedly connected to the sliding block (11) and the limiting ring (10), respectively.

4. A capacitor bushing conductive rod test clamp according to claim 3, characterized in that, A groove is provided at the middle position of the surface of the second fixed shaft (8). The part of the rope (12) that connects to the sliding block (11) after passing through the groove on the surface of the second fixed shaft (8) is in a horizontal state, and the rope (12) does not contact the bottom of the connecting block (5).

5. A capacitor bushing conductive rod test clamp according to claim 1, characterized in that, The lower clamping plate (1) and the upper clamping plate (4) are both covered with an insulating protective layer, and each clamping groove (6) is provided with neatly arranged anti-slip teeth inside.

6. A capacitor bushing conductive rod test clamp according to claim 1, characterized in that, An upper connecting plate (7) is fixedly installed on the right end of the upper clamping plate (4). A wire (14) is fixedly connected to the right end of the upper clamping plate (4) and at the bottom of the upper connecting plate (7). A protective sleeve (15) covering the wire (14) is fixedly installed at the bottom of the upper connecting plate (7).

7. A capacitor bushing conductive rod test clamp according to claim 3, characterized in that, The sliding block (11) has a plurality of ball grooves (16) evenly distributed on its sidewall. Each ball groove (16) contains a ball ball, and each ball ball extends out of the sidewall of the ball groove (16) and contacts the inner wall of the rod groove (9).

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