Adjustable high-voltage cabinet current transformer maintenance support frame

Abstract

The utility model relates to the technical field of mutual inductor maintenance, and discloses an adjustable high-voltage cabinet current transformer maintenance supporting frame which comprises a main body frame, a protection plate is fixedly connected to the front side of the main body frame, an adjusting knob is fixedly connected to the position, close to the middle, of the interior of the protection plate, and a gear is fixedly connected to the rear end of the adjusting knob. A plurality of racks are connected to the outer walls of the gears in a meshed mode, second connecting rods are fixedly connected to the tops of the racks, first telescopic columns are fixedly connected to the tops of the second connecting rods, and square fixing blocks are slidably connected to the tops of the first telescopic columns. According to the current transformer dismounting device, firstly, the adjusting knob is rotated, the rack can drive the second connecting rod to move inwards, then the supporting arms are lifted upwards, the supporting arms can move upwards in the first telescopic column at the moment, then the sliding column is rotated back, the distance and the height between the supporting arms can be accurately adjusted, and the current transformer can be dismounted.

Description

Technical Field

[0001] This utility model relates to the field of instrument transformer maintenance technology, and in particular to an adjustable high-voltage switchgear current transformer maintenance support frame. Background Technology

[0002] A high-voltage switchgear current transformer is a device used in high-voltage electrical systems. On one hand, it proportionally converts a large primary current into a smaller secondary current, facilitating current signal acquisition by measurement and protection devices. On the other hand, it plays a crucial role in current monitoring and fault protection in high-voltage systems, ensuring safe and stable system operation. However, prolonged use can lead to damage, necessitating disassembly and maintenance. Adjustable high-voltage switchgear current transformer maintenance support frames are auxiliary devices specifically designed for convenient maintenance of high-voltage switchgear current transformers. Their overall structure is stable, and the bottom is typically equipped with height-adjustable support legs. These legs can be precisely adjusted to suit different maintenance environments and the installation height of the current transformer. At the top, there is a clamping device adapted to the shape of the current transformer, which firmly secures the transformer, preventing shaking and displacement during maintenance and ensuring safe and stable operation. However, clamping is still required during disassembly and maintenance.

[0003] The clamping mechanism of the adjustable high-voltage switchgear current transformer maintenance support frame, consisting of clamps, clamping arms, and a fixing mechanism, is a core component ensuring smooth maintenance work. The opening angle and spacing of these clamping arms can be flexibly adjusted to perfectly adapt to high-voltage switchgear current transformers of different specifications and shapes. The inner side of the clamping arms is also specially equipped with anti-slip buffer material, which not only increases friction and ensures a firm grip, but also effectively avoids scratching damage to the transformer surface. Maintenance personnel only need to adjust the angle and spacing of the clamping arms according to the specific size of the current transformer to be maintained to quickly and stably fix the transformer. Whether it is a small and compact transformer or a large and complex transformer, this clamping mechanism can easily handle it. However, this type of clamping mechanism cannot adjust its height and opening size according to the actual situation, which affects the disassembly time. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an adjustable high-voltage switchgear current transformer maintenance support frame, which aims to improve the problem that the clamping mechanism in the prior art cannot adjust its height and opening size according to the actual situation, thus affecting the disassembly time.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an adjustable high-voltage switchgear current transformer maintenance support frame, comprising a main frame, a protective plate fixedly connected to the front side of the main frame, an adjustment knob fixedly connected to the inside of the protective plate near the middle, a gear fixedly connected to the rear end of the adjustment knob, multiple racks meshing with the outer wall of the gear, a connecting rod two fixedly connected to the top of the racks, a telescopic column one fixedly connected to the top of the connecting rod two, a square fixing block slidably connected to the top of the telescopic column one, a fixing component slidably connected to the right side of the square fixing block, and a safety mechanism provided at the rear end of the main frame, the safety mechanism being used for fixed connection.

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

[0007] The safety mechanism includes a connecting rod 1, the outer wall of which is slidably connected to the interior of the main frame. A button is fixedly connected to the rear end of the connecting rod 1. A spring 1 is slidably connected to the outer wall of the connecting rod 1. A trapezoidal block is fixedly connected to the front side of the spring 1. Multiple baffles are slidably connected to the left and right sides of the trapezoidal block. A support block is fixedly connected to the bottom of the multiple baffles. A spring 2 is fixedly connected to the left side of the support block. A locking tooth is fixedly connected to the left side of the spring 2. A trapezoidal groove is formed at the rear end of the locking tooth. The inner wall of the trapezoidal groove is slidably connected to the outer wall of the trapezoidal block.

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

[0009] The fixing component includes a cylindrical sleeve, the outer wall of which is fixedly connected to the inner wall of the square fixing block. A sliding column is slidably connected to the inner wall of the cylindrical sleeve. A retaining ring is fixedly connected to the right side of the outer wall of the sliding column. A spring is fixedly connected to the left side of the retaining ring. The left side of the spring is fixedly connected to the right side of the cylindrical sleeve.

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

[0011] The top of the square fixing block is fixedly connected to a support arm, and the bottom of the support arm is provided with a square groove.

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

[0013] A magnetic buckle is fixedly connected to the upper right side of the support arm, and a rubber pad is fixedly connected to the lower right side of the support arm.

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

[0015] The front side of each protective plate is provided with multiple scale rings, and the bottom of the main frame is fixedly connected with a telescopic rod column.

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

[0017] The lower end of the outer wall of the telescopic rod column 2 is slidably connected with a buckle, and the lower end of the outer wall of the telescopic rod column 2 is slidably connected with a connecting column.

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

[0019] The outer wall of each connecting column is provided with multiple circular holes, and a hand grip is fixedly connected to the bottom of the connecting column.

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

[0021] 1. In this utility model, during use, first turn the adjustment knob. At this time, the transmission gear and rack move inward. The rack will drive the connecting rod two to move inward. At this time, the connecting rod two drives the support arm to move inward until the internal distance is the same as the size of the current transformer. Then, pull the sliding column. The sliding column leaves the square fixed block and the cylindrical sleeve. At the same time, the spring three will be stretched. Then, lift the support arm upward. At this time, the support arm will move upward within the telescopic column one. Then, turn the sliding column back. This realizes the ability to accurately adjust the distance and height between the support arms to disassemble the current transformer.

[0022] 2. In this utility model, before adjusting the support arm, the button must be pressed first. At this time, the button will drive the connecting rod one to move backward. The connecting rod one will then compress the spring one, and at the same time, the connecting rod one will drive the trapezoidal block to move inside the baffle. Simultaneously, the locking teeth will move backward under the action of the trapezoidal block, allowing for adjustment. When the adjustment is in the appropriate position, the button is released. Under the action of the spring one, the trapezoidal block and the connecting rod one spring back. At this time, the locking teeth will spring back under the action of the spring two, locking the gear and preventing it from rotating. This achieves the function of locking the position of the support frame after adjustment and preventing it from sliding. Attached Figure Description

[0023] Figure 1 This is a front perspective view of the adjustable high-voltage switchgear current transformer maintenance support frame proposed in this utility model.

[0024] Figure 2 This is a partial structural breakdown of the main frame of the adjustable high-voltage switchgear current transformer maintenance support frame proposed in this utility model.

[0025] Figure 3 This is a partial structural disassembly diagram of the support block of the adjustable high-voltage switchgear current transformer maintenance support frame proposed in this utility model.

[0026] Figure 4This is a partial structural breakdown diagram of the support arm of the adjustable high-voltage switchgear current transformer maintenance support frame proposed in this utility model.

[0027] Figure 5 This is a partial structural disassembly diagram of the square fixing block of the adjustable high-voltage switchgear current transformer maintenance support frame proposed in this utility model.

[0028] Figure 6 This is a partial structural breakdown diagram of the connecting column of the adjustable high-voltage switchgear current transformer maintenance support frame proposed in this utility model.

[0029] Legend:

[0030] 1. Main frame; 2. Safety mechanism; 201. Connecting rod one; 202. Button; 203. Spring one; 204. Trapezoidal block; 205. Baffle; 206. Support block; 207. Spring two; 208. Clamping tooth; 209. Trapezoidal groove; 3. Protective plate; 4. Adjusting knob; 5. Gear; 6. Rack; 7. Connecting rod two; 8. Telescopic column one; 9. Square fixing block; 10. Cylindrical sleeve; 11. Retaining ring; 12. Spring three; 13. Sliding column; 14. Support arm; 15. Square groove; 16. Magnetic buckle; 17. Rubber pad; 18. Scale ring; 19. Telescopic rod column two; 20. Buckle; 21. Connecting column; 22. Circular hole; 23. Hand grip. 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 4 Appendix Figure 5 and attached Figure 6This utility model provides an embodiment of an adjustable high-voltage switchgear current transformer maintenance support frame, including a main frame 1, which is made of high-strength lightweight material to ensure sufficient strength and stability while reducing tool weight. A protective plate 3 is fixedly connected to the front side of the main frame 1. An adjustment knob 4 is fixedly connected to the inside of the protective plate 3 near the middle. A gear 5 is fixedly connected to the rear end of the adjustment knob 4. Multiple racks 6 are meshed on the outer wall of the gear 5 to make the transmission more stable. A connecting rod 7 is fixedly connected to the top of the rack 6. A telescopic column 8 is fixedly connected to the top of the connecting rod 7. A square fixing block 9 is slidably connected to the top of the telescopic column 8 to make the overall fixation more stable. A fixing component is slidably connected to the right side of the square fixing block 9. A safety mechanism 2 is provided at the rear end of the main frame 1. The safety mechanism 2 is used for fixing the connection.

[0033] Specifically, the device includes a main frame 1, with a protective plate 3 fixedly connected to the front. Near the center of the protective plate 3, an adjustment knob 4 is fixedly connected. Using a precision adjustment knob 4 or a quick-locking mechanism, operators can easily adjust the size and angle of the support frame to accommodate different sizes, cabinet types, and current transformers. At the rear end of the adjustment knob 4, multiple racks 6 are meshed with the outer wall of a gear 5. The tops of these racks 6 are fixedly connected to connecting rods 2 and 7. The top of connecting rods 2 and 7 is further fixedly connected to a telescopic column 1 and slidably connected to a square fixing block 9. Again using a precision adjustment knob 4 or a quick-locking mechanism, operators can easily adjust the size and angle of the support frame to accommodate different sizes, cabinet types, and current transformers. A fixing component is slidably connected to the right side of the square fixing block 9. Furthermore, a safety mechanism 2 is installed at the rear end of the main frame 1. The main function of the safety mechanism 2 is to secure the connection, ensuring the safety and stability of the entire device.

[0034] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 Safety mechanism 2 includes a connecting rod 201. The outer wall of the connecting rod 201 is slidably connected to the interior of the main frame 1. A button 202 is fixedly connected to the rear end of the connecting rod 201. A spring 203 is slidably connected to the outer wall of the connecting rod 201. A trapezoidal block 204 is fixedly connected to the front side of the spring 203. Multiple baffles 205 are slidably connected to the left and right sides of the trapezoidal block 204 for easy blocking. A support block 206 is fixedly connected to the bottom of the multiple baffles 205. A spring 207 is fixedly connected to the left side of the support block 206. A locking tooth 208 is fixedly connected to the left side of the spring 207. A trapezoidal groove 209 is opened at the rear end of the locking tooth 208. The inner wall of the trapezoidal groove 209 is slidably connected to the outer wall of the trapezoidal block 204, making the overall connection more stable.

[0035] Specifically, the safety mechanism 2 includes a connecting rod 201. The outer wall of the connecting rod 201 can slide with the interior of the main frame 1, allowing the connecting rod 201 to move freely within a certain range. This effectively absorbs impact forces and protects the main frame 1 from damage when subjected to external forces. A button 202 is fixedly connected to the rear end of the connecting rod 201. To ensure that the connecting rod 201 remains in the proper position during operation, a spring 203 is slidably connected to its outer wall. A trapezoidal locking block 204 is fixedly connected to the front side of the spring 203, and the trapezoidal locking block 204 can tightly cooperate with the outer wall of the connecting rod 201. Thus, under the action of spring 203, stability is maintained. Multiple baffles 205 are slidably connected to both sides of the trapezoidal block 204. These baffles 205 can move around the trapezoidal block 204, providing additional support and protection when needed. A support block 206 is fixedly connected to the bottom of the multiple baffles 205. The support block 206 provides a solid foundation to ensure the stability of the entire safety mechanism 2. A spring 207 is fixedly connected to the left side of the support block 206. The function of spring 207 is similar to that of spring 203, providing elasticity so that the safety mechanism 2 has a certain buffer space when subjected to external forces. A locking tooth 208 is fixedly connected to the left side of spring 207.

[0036] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 4 The fixing assembly includes a cylindrical sleeve 10, the outer wall of the cylindrical sleeve 10 is fixedly connected to the inner wall of the square fixing block 9, a sliding column 13 is slidably connected to the inner wall of the cylindrical sleeve 10, a retaining ring 11 is fixedly connected to the right side of the outer wall of the sliding column 13, a spring 12 is fixedly connected to the left side of the retaining ring 11, the left side of the spring 12 is fixedly connected to the right side of the cylindrical sleeve 10, a support arm 14 is fixedly connected to the top of the square fixing block 9, a square groove 15 is provided at the bottom of the support arm 14 so that the current transformer can be removed, a magnetic buckle 16 is fixedly connected to the upper right side of the support arm 14, a rubber pad 17 is fixedly connected to the lower right side of the support arm 14, and an anti-slip pad or magnetic adsorption device is provided at the end of the support arm 14.

[0037] Specifically, the fixing component includes a cylindrical sleeve 10. The outer wall of the cylindrical sleeve 10 is tightly connected to the inner wall of a square fixing block 9 by a fixed connection. A sliding post 13 is slidably connected to the inner wall of the cylindrical sleeve 10. A retaining ring 11 is fixedly connected to the right side of the outer wall of the sliding post 13. A spring 12 is fixedly connected to the left side of the retaining ring 11. The left side of the spring 12 is tightly connected to the right side of the cylindrical sleeve 10 by a fixed connection. A support arm 14 is fixedly connected to the top of the square fixing block 9. A square groove 15 is provided at the bottom of the support arm 14. A magnetic buckle 16 is fixedly connected to the upper right side of the support arm 14, and a rubber pad 17 is fixedly connected to the lower right side of the support arm 14.

[0038] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5 The front side of the protective plate 3 is provided with multiple scale rings 18. The bottom of the main frame 1 is fixedly connected to the telescopic rod column 2 19. The lower end of the outer wall of the telescopic rod column 2 19 is slidably connected to the buckle 20. The lower end of the outer wall of the telescopic rod column 2 19 is slidably connected to the connecting column 21. The outer wall of the connecting column 21 is provided with multiple circular holes 22. The bottom of the connecting column 21 is fixedly connected to the handle 23, which can adjust the overall length to adapt to different scenarios.

[0039] Specifically, the front part of the protective plate 3 is evenly provided with multiple fine scale rings 18. These scale rings 18 can be used to measure or mark specific lengths and positions. In addition, one or more telescopic rods 19 are fixedly connected to the bottom part of the main frame 1. These telescopic rods 19 not only increase the stability of the overall structure, but also provide the possibility of height adjustment. The lower part of the outer wall of each telescopic rod 19 is slidably connected with a buckle 20. The buckle 20 allows the telescopic rod 19 to be locked in a specific position to ensure the stability and safety of the entire device. At the same time, the lower part of the outer wall of the telescopic rod 19 is also slidably connected with a connecting post 21. These connecting posts 21 not only enhance the stability of the structure, but also have multiple circular holes 22 on their outer walls. The bottom part of the connecting post 21 is fixedly connected with a hand grip 23, which increases the comfort and controllability during use.

[0040] Working principle: In use, first turn the adjustment knob 4. At this time, the adjustment knob 4 drives the transmission gear 5 to rotate. Then, the gear 5 drives the rack 6 to move inward. At this time, the rack 6 will drive the connecting rod 7 to move inward. At this time, the connecting rod 7 will drive the support arm 14 to move inward until the internal distance is the same as the size of the current transformer. At this time, pull the sliding column 13. The sliding column 13 will move away from the square fixed block 9 and the cylindrical sleeve 10. At the same time, the retaining ring 11 will stretch the spring 12. Then lift the support arm 14 upward. At this time, the support arm 14 will move upward inside the telescopic column 8. Then turn the sliding column 13 back. At this time, the sliding column 13 will lock the telescopic column 8 inside the square fixed block 9. At this time, it can be disassembled. It can precisely adjust the distance and height between the support arms 14 to disassemble the current transformer.

[0041] Before adjusting the support arm 14, press button 202. Button 202 will move connecting rod 1 201 backward, which will compress spring 1 203. Simultaneously, connecting rod 1 201 will move trapezoidal block 204 inside baffle 205, and locking tooth 208 will move backward under the action of trapezoidal block 204. Adjustment can then be performed. When the desired position is reached, release button 202. Under the action of spring 1 203, trapezoidal block 204 and connecting rod 1 201 will spring back. Locking tooth 208 will then spring back under the action of spring 2 207, locking gear 5 and preventing it from rotating. This achieves the function of locking the position of the support frame after adjustment and preventing it from sliding.

[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. An adjustable high-voltage switchgear current transformer maintenance support frame, comprising a main frame (1), characterized in that: A protective plate (3) is fixedly connected to the front side of the main frame (1). An adjustment knob (4) is fixedly connected to the inside of the protective plate (3) near the middle. A gear (5) is fixedly connected to the rear end of the adjustment knob (4). Multiple racks (6) are meshed on the outer wall of the gear (5). A connecting rod (7) is fixedly connected to the top of the rack (6). A telescopic column (8) is fixedly connected to the top of the connecting rod (7). A square fixing block (9) is slidably connected to the top of the telescopic column (8). A fixing component is slidably connected to the right side of the square fixing block (9). A safety mechanism (2) is provided at the rear end of the main frame (1). The safety mechanism (2) is used for fixed connection.

2. The adjustable high-voltage switchgear current transformer maintenance support frame according to claim 1, characterized in that: The safety mechanism (2) includes a connecting rod (201), the outer wall of the connecting rod (201) is slidably connected to the interior of the main frame (1), a button (202) is fixedly connected to the rear end of the connecting rod (201), a spring (203) is slidably connected to the outer wall of the connecting rod (201), a trapezoidal block (204) is fixedly connected to the front side of the spring (203), multiple baffles (205) are slidably connected to the left and right sides of the trapezoidal block (204), a support block (206) is fixedly connected to the bottom of the multiple baffles (205), a spring (207) is fixedly connected to the left side of the support block (206), a locking tooth (208) is fixedly connected to the left side of the spring (207), a trapezoidal groove (209) is opened at the rear end of the locking tooth (208), and the inner wall of the trapezoidal groove (209) is slidably connected to the outer wall of the trapezoidal block (204).

3. The adjustable high-voltage switchgear current transformer maintenance support frame according to claim 1, characterized in that: The fixing component includes a cylindrical sleeve (10), the outer wall of which is fixedly connected to the inner wall of a square fixing block (9), a sliding column (13) is slidably connected to the inner wall of the cylindrical sleeve (10), a retaining ring (11) is fixedly connected to the right side of the outer wall of the sliding column (13), a spring three (12) is fixedly connected to the left side of the retaining ring (11), and the left side of the spring three (12) is fixedly connected to the right side of the cylindrical sleeve (10).

4. The adjustable high-voltage switchgear current transformer maintenance support frame according to claim 1, characterized in that: The top of the square fixing block (9) is fixedly connected to a support arm (14), and the bottom of the support arm (14) is provided with a square groove (15).

5. The adjustable high-voltage switchgear current transformer maintenance support frame according to claim 4, characterized in that: A magnetic buckle (16) is fixedly connected to the upper right side of the support arm (14), and a rubber pad (17) is fixedly connected to the lower right side of the support arm (14).

6. The adjustable high-voltage switchgear current transformer maintenance support frame according to claim 1, characterized in that: The front side of the protective plate (3) is provided with multiple scale rings (18), and the bottom of the main frame (1) is fixedly connected with telescopic rod column two (19).

7. The adjustable high-voltage switchgear current transformer maintenance support frame according to claim 6, characterized in that: The lower end of the outer wall of the telescopic rod column 2 (19) is slidably connected to a buckle (20), and the lower end of the outer wall of the telescopic rod column 2 (19) is slidably connected to a connecting column (21).

8. The adjustable high-voltage switchgear current transformer maintenance support frame according to claim 7, characterized in that: The outer wall of the connecting column (21) is provided with multiple circular holes (22), and a hand grip (23) is fixedly connected to the bottom of the connecting column (21).

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