A handcart for high-voltage switch cabinet voltage transformer convenient maintenance

Abstract

The utility model relates to power maintenance technical field especially for a kind of for high voltage switchgear convenient maintenance voltage transformer handcart, including handcart frame one, the outer wall of handcart frame one is equipped with protective panel, the outer wall of protective panel is equipped with observation window, the utility model discloses a handcart frame one is pushed into high voltage switchgear, so that push door guide rail is positioned, so that device pushes into the inner cavity of high voltage switchgear, subsequently operator rotates push mechanism handle, and then make the one end of push mechanism handle pass through push lead screw nut drive push lead screw and rotate, to make the voltage transformer move to suitable position, so that device and the component of high voltage switchgear inner cavity are connected, it can also be observed through observation window to the connection state, relative to the maintenance efficiency of traditional fixed voltage transformer, busbar needs to be disassembled, handcart type voltage transformer handcart is extracted, modular design, integrated interlock, better practicability, better practicability.

Description

Technical Field

[0001] This utility model relates to the field of power maintenance technology, specifically to a handcart for easy maintenance of voltage transformers in high-voltage switchgear. Background Technology

[0002] Voltage transformer trolleys are core components of high-voltage switchgear (such as the KYN series), used to carry voltage transformers and realize the functions of power metering, protection and monitoring; however, existing fixed voltage transformers and surge arresters have problems such as difficult maintenance and large space occupation.

[0003] Therefore, a voltage transformer trolley for easy maintenance in high-voltage switchgear is needed to improve the above-mentioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a handcart for easy maintenance of voltage transformers in high-voltage switchgear, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A handcart for easy maintenance of voltage transformers in high-voltage switchgear includes a handcart frame, a protective panel installed on the outer wall of the handcart frame, an observation window on the outer wall of the protective panel, a panel handle installed on one side of the observation window and on the outer wall of the protective panel, an integral insulator installed on the outer wall of the protective panel, a moving contact arm installed on the outer wall of the integral insulator, and a moving contact connector installed on the outer wall of the moving contact arm.

[0007] A second handcart frame is installed on the outer wall of the first handcart frame. A voltage transformer is installed on the outer wall of the first handcart frame. A push door guide rail is installed on the outer wall of the voltage transformer. A fuse clip is installed on the outer wall of the push door guide rail. A fuse is installed on the outer wall of the fuse clip.

[0008] A push screw is installed on the inner wall of the handcart frame one. A push screw nut is installed on one side of the push screw and on the inner wall of the handcart frame one. A push mechanism handle is installed at one end of the push screw nut. A roller frame is installed on the bottom outer wall of the handcart frame one. A roller is rotatably connected to the inner wall of the roller frame one. A friction grounding clamp is installed on one side of the roller frame and on the bottom outer wall of the handcart frame one. A surge arrester counter is embedded in the outer wall of the handcart frame one. An intelligent connection aviation plug is provided on the inner wall of the handcart frame one. A cabinet solid pin is installed on the side wall of the handcart frame one.

[0009] As a preferred embodiment of this utility model, the observation window is provided in two sets and is located on the outer wall of the protective panel respectively, and the panel handle is provided in two sets and is located on the outer wall of the protective panel respectively.

[0010] As a preferred embodiment of this utility model, the integrated insulator is located on one side of the fuse, wherein one end of the fuse is connected to the outer wall of the moving contact arm.

[0011] As a preferred embodiment of this utility model, the second handcart frame is located on one side of the voltage transformer, the push screw is located directly below the voltage transformer, and the push mechanism handle is located on the side wall of the first handcart frame.

[0012] As a preferred embodiment of this utility model, the roller frame is provided in multiple sets and is located on the bottom outer wall of the handcart frame, and the rollers are provided in multiple sets and are located on the inner wall of the roller frame.

[0013] As a preferred embodiment of this utility model, the surge arrester counter is provided in multiple sets and is located on the outer wall of the handcart frame, and the intelligent connection aviation plug is located on one side of the cabinet solid pin.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, a handcart for convenient maintenance of voltage transformers in high-voltage switchgear is used. The handcart frame is pushed into the high-voltage switchgear, limiting the door guide rail and allowing the device to enter the inner cavity of the switchgear. The operator then rotates the push mechanism handle, causing one end of the handle to rotate the push screw nut, moving the voltage transformer to a suitable position and connecting it to the components inside the high-voltage switchgear. The connection status can be observed through an observation window. Compared to traditional fixed voltage transformers that require busbar disassembly for maintenance, the handcart-type voltage transformer handcart is easy to pull out, modularly designed, and integrated with interlocks, offering better practicality. This helps solve the problems of difficult maintenance and large space occupation associated with existing fixed voltage transformers and surge arresters. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the front structure of this utility model;

[0019] Figure 4 This is a top view of the structure of this utility model.

[0020] In the diagram: 1. Handcart frame one; 2. Protective panel; 3. Observation window; 4. Panel handle; 5. Integrated insulator; 6. Moving contact arm; 7. Moving contact connector; 8. Handcart frame two; 9. Voltage transformer; 10. Push door guide rail; 11. Fuse clamp; 12. Fuse; 13. Push screw; 14. Push screw nut; 15. Push mechanism handle; 16. Roller frame; 17. Roller; 18. Friction grounding clamp; 19. Surge arrester counter; 20. Intelligent connection aviation plug; 21. Cabinet solid pin. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] For examples, please refer to Figure 1-4 This utility model provides a technical solution:

[0023] A handcart for easy maintenance of voltage transformers in high-voltage switchgear includes a handcart frame 1, a protective panel 2 installed on the outer wall of the handcart frame 1, an observation window 3 opened on the outer wall of the protective panel 2, a panel handle 4 installed on one side of the observation window 3 and on the outer wall of the protective panel 2, an integral insulator 5 installed on the outer wall of the protective panel 2, a moving contact arm 6 installed on the outer wall of the integral insulator 5, and a moving contact connector 7 installed on the outer wall of the moving contact arm 6.

[0024] Handcart frame 2 8 is installed on the outer wall of handcart frame 1. Voltage transformer 9 is installed on the outer wall of handcart frame 1. Door push rail 10 is installed on the outer wall of voltage transformer 9. Fuse clip 11 is installed on the outer wall of door push rail 10. Fuse 12 is installed on the outer wall of fuse clip 11.

[0025] A push screw 13 is installed on the inner wall of the handcart frame 1. A push screw nut 14 is installed on one side of the push screw 13 and on the inner wall of the handcart frame 1. A push mechanism handle 15 is installed at one end of the push screw nut 14. A roller frame 16 is installed on the bottom outer wall of the handcart frame 1. A roller 17 is rotatably connected to the inner wall of the roller frame 16. A friction grounding clamp 18 is installed on one side of the roller frame 16 and on the bottom outer wall of the handcart frame 1. A surge arrester counter 19 is embedded in the outer wall of the handcart frame 1. An intelligent connection aviation plug 20 is provided on the inner wall of the handcart frame 1. A cabinet solid pin 21 is installed on the side wall of the handcart frame 1.

[0026] In this embodiment, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 Two sets of observation windows 3 are provided and are located on the outer wall of the protective panel 2 respectively. Two sets of panel handles 4 are provided and are located on the outer wall of the protective panel 2 respectively. The integrated insulator 5 is located on one side of the fuse 12, wherein one end of the fuse 12 is connected to the outer wall of the moving contact arm 6. The second handcart frame 8 is located on one side of the voltage transformer 9. The push screw 13 is located directly below the voltage transformer 9. The push mechanism handle 15 is located on the side wall of the first handcart frame 1. Multiple sets of roller frames 16 are provided and are located on the bottom outer wall of the first handcart frame 1 respectively. Multiple sets of rollers 17 are provided and are located on the inner wall of the roller frame 16 respectively. Multiple sets of surge arrester counters 19 are provided and are located on the outer wall of the first handcart frame 1 respectively. The intelligent connection aviation plug 20 is located on one side of the cabinet solid pin 21.

[0027] Furthermore, compared to traditional fixed voltage transformers, which require busbar disassembly for maintenance, taking ≥2 hours, are fixedly installed, have poor expandability, rely on manual operation, and have a high risk of misoperation, the handcart-type voltage transformer can be pulled out in ≤30 minutes. Its modular design saves 30% of space, integrates interlocking, reduces the misoperation rate by 90%+, and is more practical.

[0028] The working process of this utility model is as follows: When using the voltage transformer handcart designed for easy maintenance of high-voltage switchgear, a push-door guide rail 10 is installed on the outer wall of the voltage transformer 9. A fuse clip 11 is installed on the outer wall of the push-door guide rail 10, and a fuse 12 is installed on the outer wall of the fuse clip 11. Under the action of the fuse clip 11, the handcart frame 1 is pushed into the high-voltage switchgear, so that the push-door guide rail 10 is limited, allowing the device to be pushed into the inner cavity of the high-voltage switchgear. At the same time, a push screw 13 is installed on the inner wall of the handcart frame 1. A push screw nut 14 is installed on one side of the push screw 13 and on the inner wall of the handcart frame 1. A push mechanism handle 15 is installed at one end of the push screw nut 14. A roller frame 16 is installed on the bottom outer wall of the handcart frame 1. A roller 17 is rotatably connected to the inner wall of the roller frame 16. Then, the operator rotates the push mechanism handle 15, thereby causing one end of the push mechanism handle 15 to pass through the push screw nut 16. The mother 14 drives the push screw 13 to rotate, so that the voltage transformer 9 moves to a suitable position. Then, an integral insulator 5 is installed on the outer wall of the protective panel 2. A moving contact arm 6 is installed on the outer wall of the integral insulator 5. Under the action of the moving contact connector 7 installed on the outer wall of the moving contact arm 6, the moving contact connector 7 of the device is connected to the components inside the high-voltage switchgear. At the same time, a protective panel 2 is installed on the outer wall of the handcart frame 1. An observation window 3 is opened on the outer wall of the protective panel 2. With the panel handle 4 installed on one side of the observation window 3 and located on the outer wall of the protective panel 2, the connection status can also be observed through the observation window 3. Compared with the traditional fixed voltage transformer, which requires the disassembly of the busbar for maintenance, the handcart-type voltage transformer has a modular design, integrated interlocking, and better practicality. This helps to solve the problems of difficult maintenance and large space occupation of existing fixed voltage transformers and surge arresters.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A handcart for easy maintenance of voltage transformers in high-voltage switchgear, comprising a handcart frame (1), characterized in that: A protective panel (2) is installed on the outer wall of the handcart frame (1). An observation window (3) is provided on the outer wall of the protective panel (2). A panel handle (4) is installed on one side of the observation window (3) and on the outer wall of the protective panel (2). A continuous insulator (5) is installed on the outer wall of the protective panel (2). A moving contact arm (6) is installed on the outer wall of the continuous insulator (5). A moving contact connector (7) is installed on the outer wall of the moving contact arm (6). A second handcart frame (8) is installed on the outer wall of the first handcart frame (1). A voltage transformer (9) is installed on the outer wall of the first handcart frame (1). A push door guide rail (10) is installed on the outer wall of the voltage transformer (9). A fuse clip (11) is installed on the outer wall of the push door guide rail (10). A fuse (12) is installed on the outer wall of the fuse clip (11). A push screw (13) is installed on the inner wall of the handcart frame (1). A push screw nut (14) is installed on one side of the push screw (13) and on the inner wall of the handcart frame (1). A push mechanism handle (15) is installed at one end of the push screw nut (14). A roller frame (16) is installed on the bottom outer wall of the handcart frame (1). A roller (17) is rotatably connected to the inner wall of the roller frame (16). A friction grounding clamp (18) is installed on one side of the roller frame (16) and on the bottom outer wall of the handcart frame (1). A surge arrester counter (19) is embedded in the outer wall of the handcart frame (1). An intelligent connection aviation plug (20) is provided on the inner wall of the handcart frame (1). A cabinet solid pin (21) is installed on the side wall of the handcart frame (1).

2. A handcart for easy maintenance of voltage transformers in high-voltage switchgear according to claim 1, characterized in that: The observation window (3) is provided in two sets and is located on the outer wall of the protective panel (2), and the panel handle (4) is provided in two sets and is located on the outer wall of the protective panel (2).

3. A handcart for easy maintenance of voltage transformers in high-voltage switchgear according to claim 1, characterized in that: The integral insulator (5) is located on one side of the fuse (12), wherein one end of the fuse (12) is connected to the outer wall of the moving contact arm (6).

4. A handcart for easy maintenance of voltage transformers in high-voltage switchgear according to claim 1, characterized in that: The second handcart frame (8) is located on one side of the voltage transformer (9), the push screw (13) is located directly below the voltage transformer (9), and the push mechanism handle (15) is located on the side wall of the first handcart frame (1).

5. A handcart for easy maintenance of voltage transformers in high-voltage switchgear according to claim 1, characterized in that: The roller frame (16) is provided in multiple sets and is located on the bottom outer wall of the handcart frame (1), and the rollers (17) are provided in multiple sets and are located on the inner wall of the roller frame (16).

6. A handcart for easy maintenance of voltage transformers in high-voltage switchgear according to claim 1, characterized in that: The surge arrester counter (19) is provided in multiple sets and is located on the outer wall of the handcart frame (1), and the intelligent connection aviation plug (20) is located on one side of the cabinet solid pin (21).

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