GIS (Gas Insulated Switchgear) current transformer convenient to optimize and maintain

Abstract

The utility model discloses a GIS current transformer convenient to optimize and maintain, which belongs to the technical field of current transformers and comprises a mounting frame, a current transformer body is arranged on the outer side of the mounting frame, a connecting frame is fixedly mounted on the right side face of the current transformer body, and the outer surface of the connecting frame is slidably connected with the inner wall of the mounting frame. The front face and the back face of the connecting frame are each provided with a rectangular groove, the inner side wall of the mounting frame is rotationally connected with a worm, the outer surface of the worm is meshed with a worm gear, the inner wall of the worm gear is fixedly provided with a two-way threaded rod, the outer surface of the two-way threaded rod is in threaded connection with two rectangular strips, and the outer surface of each rectangular strip is slidably connected with the inner wall of the mounting frame. According to the GIS current transformer convenient to optimize and maintain, the worm gear can drive the two-way threaded rod to rotate reversely through the worm, so that the rectangular strip can be driven to move out of the rectangular groove, the limiting of the current transformer body can be relieved, and the current transformer body is convenient to disassemble and optimize and maintain.

Description

Technical Field

[0001] This application belongs to the field of current transformer technology, and in particular relates to a GIS current transformer that is easy to optimize and maintain. Background Technology

[0002] GIS current transformers are high-performance current transformers specifically designed for GIS systems. Their main function is to convert large currents in the main circuit into small currents that can be handled by measuring instruments, relays, and other protection devices without interrupting the high-voltage circuit. Due to their compact size, high stability, good insulation performance, and long lifespan, GIS current transformers play a crucial role in high-voltage power systems.

[0003] Existing current transformers are typically installed and limited by multiple bolts. When maintenance is required, workers have to remove these bolts one by one to take the transformer out, which is time-consuming and labor-intensive. This not only increases the workload of workers but also reduces the efficiency of maintenance, thus making it less practical.

[0004] To address these issues, we propose a GIS current transformer that is easy to optimize and maintain. Utility Model Content

[0005] The purpose of this application is to solve the problem that in the prior art, current transformers are usually installed and limited by multiple bolts. When workers need to optimize and maintain the current transformer, they need to remove multiple bolts one by one before they can take out the current transformer. This is time-consuming and labor-intensive, which increases the labor intensity of workers and reduces the efficiency of current transformer optimization and maintenance, thus making it less practical. The application proposes a GIS current transformer that is easy to optimize and maintain.

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

[0007] A GIS current transformer with optimized maintenance includes a mounting frame. A current transformer body is mounted on the outer side of the mounting frame. A connecting frame is fixedly mounted on the right side of the current transformer body. The outer surface of the connecting frame is slidably connected to the inner wall of the mounting frame. Rectangular slots are formed on both the front and back of the connecting frame. A worm gear is rotatably connected to the inner wall of the mounting frame. A worm wheel meshes with the outer surface of the worm gear. A bidirectional threaded rod is fixedly mounted on the inner wall of the worm wheel. Two rectangular bars are threadedly connected to the outer surface of the bidirectional threaded rod. The outer surface of each rectangular bar is slidably connected to the inner wall of the mounting frame. The outer surface of each rectangular bar contacts the inner wall of the rectangular slot. Four limiting springs are fixedly mounted on the inner wall of the mounting frame. A push plate is fixedly mounted on the left end of the four limiting springs. The left side of the push plate contacts the right side of the connecting frame.

[0008] Preferably, both ends of the bidirectional threaded rod are fixedly mounted with first bearings, and the side of each first bearing away from the bidirectional threaded rod is fixedly connected to the inner wall of the mounting bracket.

[0009] Preferably, the inner wall of the mounting bracket is rotatably connected to a limiting rod, and the inner wall of each rectangular strip is slidably connected to the outer surface of the limiting rod.

[0010] Preferably, a second bearing is fixedly mounted on the outer surface of the worm gear, and the outer surface of the second bearing is fixedly connected to the inner wall of the mounting bracket.

[0011] Preferably, a handle is fixedly installed at the left end of the worm gear, and the outer surface of the handle is provided with anti-slip grooves arranged at equal intervals.

[0012] Preferably, two mounting blocks are fixedly mounted on both the front and back of the mounting bracket, and each mounting block has a mounting hole on its left side.

[0013] Preferably, the inner wall of each mounting hole is threaded with a limit bolt, and a nut is fixedly installed on the left end of each limit bolt.

[0014] In summary, the technical effects and advantages of this application are as follows: The mounting bracket can limit the connection frame; rotating the worm gear drives the worm wheel to rotate, which in turn drives the bidirectional threaded rod to rotate. This allows the bidirectional threaded rod to move the rectangular bar into the rectangular slot, thus limiting the connection frame and facilitating the installation of the current transformer body. Reversing the rotation of the worm gear causes the worm wheel to rotate the bidirectional threaded rod in the opposite direction, moving the rectangular bar out of the rectangular slot and releasing the limitation on the current transformer body. The elastic force provided by the limit spring moves the push plate, pushing the current transformer body outward. This eliminates the need for multiple bolts to limit the installation of the current transformer body, making installation and disassembly of the current transformer body convenient and facilitating personnel to disassemble, optimize, and maintain it, achieving a highly practical effect. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the mounting bracket of this utility model;

[0016] Figure 2 This is a left-side three-dimensional structural diagram of the rectangular strip of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the current transformer body of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the push plate of this utility model from the rear view.

[0019] In the diagram: 1. Mounting bracket; 2. Current transformer body; 3. Connecting bracket; 4. Rectangular slot; 5. Worm gear; 6. Worm wheel; 7. Bidirectional threaded rod; 8. Rectangular bar; 9. Limiting spring; 10. Push plate; 11. First bearing; 12. Limiting rod; 13. Second bearing; 14. Handle; 15. Anti-slip groove; 16. Mounting block; 17. Mounting hole; 18. Limiting bolt; 19. Nut. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-4A GIS current transformer with optimized maintenance includes a mounting frame 1. A current transformer body 2 is disposed on the outer side of the mounting frame 1. A connecting frame 3 is fixedly installed on the right side of the current transformer body 2. The outer surface of the connecting frame 3 is slidably connected to the inner wall of the mounting frame 1. Rectangular grooves 4 are provided on both the front and back of the connecting frame 3. A worm gear 5 is rotatably connected to the inner wall of the mounting frame 1. A worm wheel 6 meshes with the outer surface of the worm gear 5. A bidirectional threaded rod 7 is fixedly installed on the inner wall of the worm wheel 6. First bearings 11 are fixedly installed at both ends of the bidirectional threaded rod 7. The side of each first bearing 11 away from the bidirectional threaded rod 7 is fixedly connected to the inner wall of the mounting frame 1. The first bearings 11 can limit the bidirectional threaded rod 7, thereby preventing the bidirectional threaded rod 7 from deviating when rotating and increasing the stability of the bidirectional threaded rod 7.

[0022] The outer surface of the bidirectional threaded rod 7 is threaded with two rectangular bars 8. The outer surface of each rectangular bar 8 is slidably connected to the inner wall of the mounting bracket 1, and the outer surface of each rectangular bar 8 is in contact with the inner wall of the rectangular groove 4. The inner wall of the mounting bracket 1 is rotatably connected to a limit rod 12. The inner wall of each rectangular bar 8 is slidably connected to the outer surface of the limit rod 12. The limit rod 12 can limit the rectangular bar 8, thereby preventing the rectangular bar 8 from deviating when moving, so that the rectangular bar 8 can move smoothly.

[0023] Four limiting springs 9 are fixedly installed on the inner wall of the mounting frame 1. A push plate 10 is fixedly installed on the left end of the four limiting springs 9. The left side of the push plate 10 is in contact with the right side of the connecting frame 3. A second bearing 13 is fixedly installed on the outer surface of the worm gear 5. The outer surface of the second bearing 13 is fixedly connected to the inner wall of the mounting frame 1. The second bearing 13 can limit the movement of the worm gear 5, so that the worm gear 5 can rotate smoothly in the mounting frame 1, which increases the practicality of the device.

[0024] A handle 14 is fixedly installed on the left end of the worm gear 5. The outer surface of the handle 14 is provided with anti-slip grooves 15 arranged at equal intervals. The handle 14 allows the person to easily rotate the worm gear 5. The anti-slip grooves 15 can increase the friction between the person's hand and the handle 14, thus increasing the ease of rotation of the worm gear 5.

[0025] Two mounting blocks 16 are fixedly installed on both the front and back of the mounting bracket 1. Each mounting block 16 has a mounting hole 17 on its left side. The mounting bracket 1 can be easily installed through the mounting blocks 16, which can limit the position of the mounting bracket 1 and increase the ease of installation of the mounting bracket 1.

[0026] Each mounting hole 17 has a threaded limit bolt 18 connected to its inner wall. Each limit bolt 18 has a nut 19 fixedly installed on its left end. The limit bolt 18 can limit the installation of the mounting block 16, making it convenient to install the mounting bracket 1 in different positions and further increasing the practicality of the device.

[0027] The working principle of this utility model is as follows: In use, the mounting bracket 1 is first installed at the application point of the current transformer body 2 using the limiting bolt 18. The mounting bracket 1 can limit the connection bracket 3. Manually holding the handle 14 can drive the worm gear 5 to rotate, which in turn drives the worm wheel 6 to rotate. The rotation of the worm wheel 6 can drive the bidirectional threaded rod 7 to rotate. The first bearing 11 can limit the bidirectional threaded rod 7, so that the bidirectional threaded rod 7 can drive the rectangular bar 8 into the rectangular groove 4, which allows the rectangular bar 8 to limit the connection bracket 3, thus facilitating the installation of the current transformer body 2. Reverse rotation... The worm gear 5 enables the worm wheel 6 to drive the bidirectional threaded rod 7 to rotate in the opposite direction, thereby moving the rectangular bar 8 out of the rectangular slot 4. This releases the rectangular bar 8 from its restriction on the current transformer body 2. The elastic force provided by the limit spring 9 can drive the push plate 10 to move, allowing the push plate 10 to push the current transformer body 2 outward. This eliminates the need for multiple bolts to limit the installation of the current transformer body 2, making it easier to install and disassemble the current transformer body 2. This facilitates the disassembly, optimization, and maintenance of the current transformer body 2, making the GIS current transformer more practical and easier to maintain.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A GIS current transformer that is easy to optimize maintenance, comprising a mounting bracket (1), characterized in that: A current transformer body (2) is provided on the outer side of the mounting bracket (1). A connecting bracket (3) is fixedly installed on the right side of the current transformer body (2). The outer surface of the connecting bracket (3) is slidably connected to the inner wall of the mounting bracket (1). Rectangular grooves (4) are provided on both the front and back of the connecting bracket (3). A worm gear (5) is rotatably connected to the inner side wall of the mounting bracket (1). A worm wheel (6) meshes with the outer surface of the worm gear (5). A bidirectional threaded rod (7) is fixedly installed on the inner wall of the worm wheel (6). The outer surface of the bidirectional threaded rod (7) is threaded with two rectangular bars (8). The outer surface of each rectangular bar (8) is slidably connected to the inner wall of the mounting frame (1). The outer surface of each rectangular bar (8) is in contact with the inner wall of the rectangular groove (4). Four limiting springs (9) are fixedly installed on the inner side wall of the mounting frame (1). The left end of the four limiting springs (9) is fixedly installed with a push plate (10). The left side of the push plate (10) is in contact with the right side of the connecting frame (3).

2. The GIS current transformer for easy optimized maintenance according to claim 1, characterized in that: Both ends of the bidirectional threaded rod (7) are fixedly installed with first bearings (11), and the side of each first bearing (11) away from the bidirectional threaded rod (7) is fixedly connected to the inner wall of the mounting bracket (1).

3. A GIS current transformer for easy optimized maintenance according to claim 1, characterized in that: The inner wall of the mounting bracket (1) is rotatably connected to a limiting rod (12), and the inner wall of each rectangular bar (8) is slidably connected to the outer surface of the limiting rod (12).

4. A GIS current transformer for easy optimized maintenance according to claim 1, characterized in that: The outer surface of the worm (5) is fixedly mounted with a second bearing (13), and the outer surface of the second bearing (13) is fixedly connected to the inner wall of the mounting bracket (1).

5. A GIS current transformer for easy optimized maintenance according to claim 1, characterized in that: A handle (14) is fixedly installed on the left end of the worm (5), and anti-slip grooves (15) are arranged at equal intervals on the outer surface of the handle (14).

6. A GIS current transformer for easy optimized maintenance according to claim 1, characterized in that: The mounting bracket (1) has two mounting blocks (16) fixedly installed on its front and back sides, and each mounting block (16) has a mounting hole (17) on its left side.

7. A GIS current transformer for easy optimized maintenance according to claim 6, characterized in that: Each of the mounting holes (17) has a limit bolt (18) threadedly connected to its inner wall, and a nut (19) is fixedly installed on the left end of each of the limit bolts (18).

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