A device for replacing high-voltage fuses

Abstract

This utility model relates to the field of high-voltage fuse replacement technology, and more particularly to a device for replacing high-voltage fuses. This utility model provides such a device for replacing high-voltage fuses, including a fixed plate, a placement frame, a protective pad, and a limiting structure. The placement frame is fixedly connected to the top of the fixed plate, and a protective pad is adhered to the inner wall of the placement frame. The limiting structure is provided on the fixed plate for clamping and fixing the mounting base of the high-voltage fuse. It also includes a rodless cylinder, a moving plate, pushers, and a push plate. The rodless cylinder is installed at the lower part of the placement frame, and the moving plate is installed on the rodless cylinder. Two pushers are installed on the right side of the moving plate, and a push plate is fixedly connected to the pushers on the right side. Through the coordinated work of the rodless cylinder and the two pushers, the operation realizes the automatic pulling out and insertion of the handle and the fuse, reducing manual force and operating steps, improving replacement efficiency, and ensuring uniform force during insertion and removal, reducing safety risks caused by improper manual operation.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage fuse replacement technology, and in particular to a device for replacing high-voltage fuses. Background Technology

[0002] A high-voltage fuse is a protective device used in power systems. Its main function is to quickly interrupt fault current when an overload or short circuit occurs, protecting electrical equipment and lines from damage. Based on their structure and operating principle, high-voltage fuses are mainly divided into current-limiting fuses and non-current-limiting fuses.

[0003] In the maintenance of power systems and industrial electrical equipment, high-voltage fuses, as important overcurrent protection components, require regular inspection or replacement. Traditional replacement methods usually rely on manual operation, where workers must manually pull the handle to remove or push the fuse from its mounting bracket. This operation is not only labor-intensive but also prone to problems such as uneven force, handle misalignment, and incomplete insertion or removal, which may damage the fuse itself or the mounting bracket, or even cause an electric arc accident, seriously affecting operational safety and equipment reliability.

[0004] Therefore, there is a need for a device that can automatically pull out and insert fuses for replacing high-voltage fuses. Utility Model Content

[0005] To overcome the shortcomings of existing technology that involves manually pulling out or pushing the fuse from the mounting base by manipulating the handle, which is not only labor-intensive but also prone to problems such as uneven force, handle misalignment, and incomplete insertion or removal, potentially damaging the fuse body or mounting base, or even causing an electric arc accident, seriously affecting work safety and equipment reliability, this utility model provides a device for automatically pulling out and inserting fuses for replacing high-voltage fuses.

[0006] The technical solution is as follows: A device for replacing a high-voltage fuse includes a fixed plate, a placement frame, a protective pad, and a limiting structure. The placement frame is fixedly connected to the top of the fixed plate, and a protective pad is adhered to the inner wall of the placement frame. The limiting structure is provided on the fixed plate for clamping and fixing the mounting base of the high-voltage fuse. It also includes a rodless cylinder, a moving plate, a pusher, a push plate, and a contact plate. The rodless cylinder is installed at the lower part of the placement frame, and the moving plate is provided on the rodless cylinder. Two pushers are installed on the right side of the moving plate, and a push plate is fixedly connected to the right pusher. One end of the handle is placed on the push plate, and a contact plate is fixedly connected to the left pusher.

[0007] Furthermore, the limiting structure includes a motor, a lead screw, a limiting frame, a rubber plate, and guide rods. The motor is mounted on the top of the fixed plate, and the output shaft of the motor is connected to the lead screw via a coupling. Two guide rods are fixedly connected to the top of the fixed plate, and the two guide rods are slidably mounted on the limiting frame. The lead screw is threadedly connected to the limiting frame, and a rubber plate is mounted on the limiting frame. The rubber plate contacts the mounting base of the high-voltage fuse.

[0008] Furthermore, it also includes a support plate, a connecting rod, and a rotating plate. A support plate is installed on the front right side of the placement frame, a connecting rod is fixedly connected to the support plate, and a rotating plate is rotatably installed on the connecting rod.

[0009] Furthermore, it also includes plastic sheets, with plastic sheets glued to both sides of the push plate, and the handle is in contact with the plastic sheets.

[0010] Furthermore, it also includes a damping ring, which is fitted onto the connecting rod.

[0011] Furthermore, it also includes a protective shell, with the top of the fixing plate having a protective shell, and the motor located inside the protective shell.

[0012] Compared with the prior art, the present invention provides a device for replacing high-voltage fuses, which has the following advantages: 1. Through the coordinated work of the rodless cylinder and two pushers, the operation realizes the automatic pulling out and insertion of the handle and fuse, reducing manual force and operation steps, improving replacement efficiency, and the force is evenly distributed during the insertion and removal process, reducing the safety risks caused by improper manual operation.

[0013] 2. By rotating the rotating plate around the connecting rod to a horizontal position, it serves as a temporary storage platform for placing the parts needed to replace the fuse, making them easy to access during operation and thus improving the convenience and efficiency of the operation. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a partial sectional view of the components of this utility model, such as the fixing plate, the placement rack, and the limiting rack.

[0016] Figure 3 This is a three-dimensional structural diagram of the motor, lead screw, and guide rod components of this utility model.

[0017] Figure 4 This is a partial sectional view of the components of this utility model, including the fixed plate, rodless cylinder, and moving plate.

[0018] Figure 5 This is a partial cross-sectional view of the pusher, push plate, and contact plate components of this utility model.

[0019] Figure 6 This is a partial sectional view of the support plate, connecting rod, and rotating plate of this utility model.

[0020] Reference numerals: 1. Fixing plate, 2. Placement rack, 3. Protective pad, 4. Motor, 5. Lead screw, 6. Limiting frame, 7. Rubber plate, 8. Guide rod, 9. Rodless cylinder, 10. Moving plate, 11. Pusher, 12. Push plate, 13. Contact plate, 14. Plastic plate, 15. Support plate, 16. Connecting rod, 17. Rotating plate, 18. Damping ring, 19. Protective shell. Detailed Implementation

[0021] 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.

[0022] Example 1: A device for replacing a high-voltage fuse, please refer to [link / reference]. Figures 1-6 The device includes a fixed plate 1, a mounting bracket 2, a protective pad 3, and a limiting structure. The mounting bracket 2 is fixedly connected to the top of the fixed plate 1, and the protective pad 3 is adhered to the inner wall of the mounting bracket 2. The limiting structure is provided on the fixed plate 1 to clamp and fix the mounting base of the high-voltage fuse. The limiting structure includes a motor 4, a lead screw 5, a limiting frame 6, a rubber plate 7, and guide rods 8. The motor 4 is mounted on the top of the fixed plate 1, and the output shaft of the motor 4 is connected to the lead screw 5 through a coupling. Two guide rods 8 are fixedly connected to the top of the fixed plate 1, and the limiting frame 6 is slidably mounted on the two guide rods 8. The lead screw 5 is threadedly connected to the limiting frame 6. The rubber plate 7 is provided on the limiting frame 6 and contacts the mounting base of the high-voltage fuse. The protective pad 3 works in conjunction with the rubber plate 7 to protect the mounting base and prevent damage to the surface of the mounting base during clamping. It also includes a rodless cylinder 9, a moving plate 10, a pusher 11, a push plate 12, and a contact plate 13. The rodless cylinder 9 is installed at the bottom of the placement frame 2. The moving plate 10 is set on the rodless cylinder 9. Two pushers 11 are installed on the right side of the moving plate 10. The push plate 12 is fixedly connected to the pusher 11 on the right side. One end of the handle is placed on the push plate 12. The contact plate 13 is fixedly connected to the pusher 11 on the left side. Plastic plates 14 are glued to both sides of the push plate 12. The handle contacts the plastic plates 14, which effectively avoids wear or slippage caused by the contact between the push plate 12 and the handle, and improves the safety and reliability of operation. A protective shell 19 is set on the top of the fixed plate 1. The motor 4 is located inside the protective shell 19, which effectively prevents dust, oil or accidental contact from damaging the motor 4, and improves the operating safety and service life of the equipment.

[0023] When replacing a high-voltage fuse, first, place the fuse to be replaced on the mounting bracket 2. Start the motor 4, which drives the lead screw 5 to rotate via the coupling. As the lead screw 5 rotates, it drives the limiting bracket 6 to move downwards along the guide rod 8. The rubber plate 7 moves accordingly and clamps the mounting base of the high-voltage fuse, thus positioning and holding the fuse to prevent displacement during operation. When removing the fuse, activate the two pushers 11. The right pusher 11 drives the push plate 12 upwards, causing one end of the handle to engage in the limiting groove of the push plate 12. The left pusher 11 drives the contact plate 13 to move upwards simultaneously, providing support and ensuring even pushing force and smooth operation. Then, activate the rodless cylinder 9, which drives the moving plate 10 to move to the right. This allows the push plate 12 and contact plate 13 to smoothly pull the handle along with the high-voltage fuse out of the mounting base. After the fuse is completely removed, separate it from the handle. Remove the old fuse, replace it with a new one, and reinstall the handle on the new fuse. Then, place one end of the handle back into the limiting groove of the push plate 12. Next, activate the rodless cylinder 9 to control the moving plate 10 to move to the left, accurately pushing the handle along with the new fuse into the equipment mounting base to complete the automatic insertion operation. The above operation realizes the automatic pulling out and insertion of the handle and fuse, reducing manual force and operation steps, improving replacement efficiency, and the force is evenly distributed during the insertion and removal process, reducing the safety risks caused by improper manual operation. After insertion, turn off the pusher 11, which drives the push plate 12 and contact plate 13 to return to the initial position to complete the reset. Finally, control the motor 4 to reverse, causing the lead screw 5 to rotate in the opposite direction, driving the limiting frame 6 to move upward along the guide rod 8. The rubber plate 7 moves accordingly and no longer clamps the mounting base of the high-voltage fuse. Remove the mounting base to complete the entire replacement process.

[0024] Example 2: Based on Example 1, please refer to... Figure 1 and Figure 6 It also includes a support plate 15, a connecting rod 16 and a rotating plate 17. The support plate 15 is installed on the front right side of the placement frame 2. The connecting rod 16 is fixedly connected to the support plate 15. The rotating plate 17 is rotatably mounted on the connecting rod 16. A damping ring 18 is sleeved on the connecting rod 16. The damping ring 18 contacts the rotating plate 17 to provide appropriate rotational resistance and prevent accidental rotation when using the rotating plate 17.

[0025] When using the device, the rotating plate 17 can be rotated around the connecting rod 16 to a horizontal position to serve as a temporary storage platform for placing the parts needed to replace the fuse, making them easy to access during operation and thus improving the convenience and efficiency of the operation.

[0026] 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 device for replacing high-voltage fuses, comprising a fixing plate (1), a placing rack (2), a protective pad (3) and a limiting structure, the top of the fixing plate (1) is fixedly connected with the placing rack (2), the inner wall of the placing rack (2) is bonded with the protective pad (3), and the fixing plate (1) is provided with the limiting structure, which is used for clamping and fixing the mounting seat of the high-voltage fuse, characterized in that, It also includes a rodless cylinder (9), a moving plate (10), a pusher (11), a push plate (12), and a contact plate (13). The rodless cylinder (9) is installed at the bottom of the placement rack (2). The moving plate (10) is set on the rodless cylinder (9). Two pushers (11) are installed on the right side of the moving plate (10). The push plate (12) is fixedly connected to the pusher (11) on the right side. One end of the handle is placed on the push plate (12). The contact plate (13) is fixedly connected to the pusher (11) on the left side.

2. A device for replacing a high voltage fuse according to claim 1, characterized in that The limiting structure includes a motor (4), a lead screw (5), a limiting frame (6), a rubber plate (7), and a guide rod (8). The motor (4) is installed on the top of the fixed plate (1). The output shaft of the motor (4) is connected to the lead screw (5) through a coupling. Two guide rods (8) are fixedly connected to the top of the fixed plate (1). The two guide rods (8) are slidably provided with the limiting frame (6). The lead screw (5) is threadedly connected to the limiting frame (6). The rubber plate (7) is provided on the limiting frame (6). The rubber plate (7) is in contact with the mounting seat of the high-voltage fuse.

3. A device for replacing a high voltage fuse according to claim 2, characterized in that It also includes a support plate (15), a connecting rod (16) and a rotating plate (17). The support plate (15) is installed on the right side of the front of the placement rack (2). The connecting rod (16) is fixedly connected to the support plate (15). The rotating plate (17) is rotatably installed on the connecting rod (16).

4. A device for replacing a high voltage fuse according to claim 3, characterized in that It also includes a plastic sheet (14), and the push plate (12) has plastic sheets (14) glued to both sides, and the handle is in contact with the plastic sheet (14).

5. A device for replacing a high voltage fuse according to claim 4, characterized in that It also includes a damping ring (18), and the connecting rod (16) is fitted with a damping ring (18).

6. A device for replacing a high voltage fuse according to claim 5, characterized in that It also includes a protective shell (19), the top of the fixing plate (1) is provided with a protective shell (19), and the motor (4) is located inside the protective shell (19).

Images