High-voltage fuse mounting structure convenient to quickly replace
By using a dual-station clamping assembly and a worm gear transmission system, the problem of cumbersome operation in the traditional high-voltage fuse installation structure is solved, enabling efficient fuse replacement, reducing the risk of high-altitude operations, and improving the operational stability and safety of power equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- STATE GRID JIANGXI ELECTRIC POWER CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional high-voltage fuse installation is cumbersome, increasing safety risks, especially when working at heights, and is inefficient in disassembly and installation.
The dual-station clamping assembly uses a worm gear, worm wheel, and gear transmission system to achieve rapid clamping and release of the fuse, simplifying the operation steps. The self-locking property of the worm gear and worm wheel ensures clamping stability, and the cooperation of the gear rod and rotating rod achieves synchronous action.
It improves the efficiency of high-voltage fuse replacement, reduces safety risks in high-altitude operations, shortens replacement time, enhances the continuity and stability of power equipment, and reduces equipment downtime and economic losses.
Smart Images

Figure CN224217459U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power equipment technology, specifically to a high-voltage fuse installation structure that facilitates quick replacement. Background Technology
[0002] In power systems, high-voltage fuses are an important protective device widely used for overload and short-circuit protection of equipment such as transformers, motors, capacitor banks, and switchgear. Their core function is to melt the fusible element due to heat when the current in the circuit exceeds the rated value, thereby cutting off the circuit in a very short time and protecting downstream equipment from damage.
[0003] In existing technologies, traditional high-voltage fuse installation structures typically rely on multiple screws for fastening. During disassembly and installation, operators need to tighten or loosen multiple screws one by one, which is cumbersome and inefficient. Especially when working at heights, multiple screws are located in different positions, increasing the difficulty of disassembly for workers. Operators need to constantly adjust their body posture and angle to remove all the screws. Every movement of the body during high-altitude work is accompanied by safety risks. For example, when operators try to tighten or loosen screws located at the bottom or top, they may need to lean their bodies out of the safe range, increasing the risk of falling.
[0004] In view of the above, this application is hereby submitted. Utility Model Content
[0005] The purpose of this invention is to provide a high-voltage fuse installation structure that facilitates quick replacement, thereby solving the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model provides a high-voltage fuse installation structure that facilitates quick replacement. The structure includes a mounting base, with insulator bodies mounted on both sides of the top of the mounting base. A fixed outer shell is fixedly connected to the top of each insulator body. A push rod is slidably connected to the inner wall of the fixed outer shell. A toothed block is fixedly connected to the top of the push rod. Gear rods are meshed on both sides of the toothed block. A first connecting bracket and a second connecting bracket are rotatably connected to both sides of the top of each gear rod. A rotating rod is rotatably connected to one side of the adjacent first and second connecting brackets. One end of the gear rod and the rotating rod is rotatably connected to the inner wall of the fixed outer shell. A clamping claw is fixedly connected to one side of the top of the first and second connecting brackets.
[0007] Furthermore, a worm gear is rotatably connected to one inner wall of the mounting base, a worm wheel is meshed with one inner wall of the worm gear, a threaded rod is fixedly connected to the middle of the worm wheel, a movable column is threadedly connected to the outer wall of the threaded rod, and connecting brackets are installed on both sides of the top of the movable column. The end of each connecting bracket away from the movable column is fixedly connected to the push rod.
[0008] Furthermore, the fuse body is abutted on one side of the two adjacent jaws, and the other two jaws are also abutted on the fuse body. Both ends of the fuse body are provided with clamping grooves, and the width of the clamping grooves is adapted to the width of the jaws.
[0009] Furthermore, each gripper has an arc-shaped groove on one side of its outer wall, and the inner wall of the arc-shaped groove is covered with an anti-slip texture.
[0010] Furthermore, the inner wall of the movable column is provided with a threaded groove, and the movable column is threadedly connected to the threaded rod through the threaded groove, while the threaded rod is rotatably connected to the mounting base.
[0011] Furthermore, one end of the worm gear is rotatably connected to the inner wall of the mounting base, and a hexagonal block is installed at the other end of the worm gear. The worm gear is made of insulating material.
[0012] Furthermore, multiple teeth are provided on both outer walls of the tooth block, and the two sides of the tooth block are respectively meshed with one end of the two gear rods through the multiple teeth.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. The dual-station clamping assembly enables the synchronous operation of two clamping components to clamp and release the fuse, simplifying the work process. Only one worm gear needs to be turned, which not only improves the efficiency of operation, but also reduces the need for operators to move back and forth between multiple positions when working at height. This allows operators to concentrate more on completing the fuse replacement work, reducing the risks of fatigue, physical exhaustion, and operational errors caused by prolonged suspension at height, and ensuring the personal safety of operators.
[0015] 2. Due to the simplification of the operation process and the reduction of operation steps, the time for replacing fuses has been shortened, reducing equipment downtime, improving the continuity and stability of power supply, and avoiding serious economic losses and social impacts caused by prolonged power outages. Attached Figure Description
[0016] Figure 1 A schematic diagram of the overall structure of a high-voltage fuse installation structure that facilitates quick replacement;
[0017] Figure 2 A schematic diagram of the internal structure of a high-voltage fuse installation structure that facilitates quick replacement;
[0018] Figure 3 A schematic diagram of the fixing component in a high-voltage fuse mounting structure that facilitates quick replacement;
[0019] Figure 4 A schematic diagram showing the connection between the push rod and the fixed housing in a high-voltage fuse mounting structure that facilitates quick replacement;
[0020] Figure 5 This is a schematic diagram of the fuse body in a high-voltage fuse installation structure that facilitates quick replacement.
[0021] In the diagram: 1. Mounting base; 2. Insulator body; 3. Fixed outer shell; 4. Push rod; 5. Tooth block; 6. Gear rod; 7. First connecting bracket; 8. Second connecting bracket; 9. Rotating rod; 10. Clamping jaw; 11. Worm gear; 12. Worm wheel; 13. Threaded rod; 14. Moving column; 15. Connecting frame; 16. Fuse body; 17. Clamping groove. Detailed Implementation
[0022] 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.
[0023] Please see Figures 1-5 This utility model provides a technical solution: a high-voltage fuse installation structure for easy and quick replacement, including a mounting base 1. Insulator bodies 2 are installed on both sides of the top of the mounting base 1. The insulator bodies 2 provide electrical insulation to prevent high-voltage current from being conducted from the mounting base 1. A fixed housing 3 is fixedly connected to the top of each insulator body 2. The fixed housing 3 provides support points for the gear rod 6 and the rotating rod 9. A push rod 4 is slidably connected to the inner wall of the fixed housing 3. A toothed block 5 is fixedly connected to the top of the push rod 4. The push rod 4 can move linearly within the fixed housing 3, thereby synchronously driving the toothed block 5 to move. Gear rods 6 are meshed on both sides of the toothed block 5, and the toothed block 5 transmits power through tooth meshing. The movement of the gear block 5 drives the rotation of the gear rod 6. Each gear rod 6 has a first connecting bracket 7 and a second connecting bracket 8 rotatably connected to both sides of its top end. A rotating rod 9 is rotatably connected to the adjacent side of the first connecting bracket 7 and the second connecting bracket 8. One end of the gear rod 6 and the rotating rod 9 is rotatably connected to the inner wall of the fixed housing 3. A gripper 10 is fixedly connected to one side of the top end of the first connecting bracket 7 and the second connecting bracket 8. The first connecting bracket 7 and the second connecting bracket 8 connect the gear rod 6, the gripper 10, and the rotating rod 9, converting the rotation of the gear rod 6 and the rotating rod 9 into the opening and closing action of the gripper 10. The gripper 10 then directly performs the clamping action, providing a suitable clamping force.
[0024] See Figure 2 , Figure 4A worm gear 11 is rotatably connected to one inner wall of the mounting base 1, and a worm wheel 12 is meshed with one inner wall of the worm gear 11. The rotation of the worm gear 11 transmits power to the worm wheel 12. The transmission between the worm gear 11 and the worm wheel 12 has self-locking properties, ensuring that it will not rotate on its own due to external force after it stops rotating, thus improving the stability of clamping. A threaded rod 13 is fixedly connected to the middle of the worm wheel 12, and a moving column 14 is threadedly connected to the outer wall of the threaded rod 13. The threaded rod 13 rotates together with the worm wheel 12, and drives the moving column 14 to make linear motion through the threaded connection, converting the rotational motion into linear motion. Connecting brackets 15 are installed on both sides of the top of the moving column 14. The end of each connecting bracket 15 away from the moving column 14 is fixedly connected to the push rod 4. The connecting brackets 15 move synchronously with the moving column 14, so that the push rod 4 can slide and form a linkage.
[0025] See Figure 1 , Figure 2 , Figure 5 Two adjacent jaws 10 are connected to the fuse body 16. The other two jaws 10 are also connected to the fuse body 16. Both ends of the fuse body 16 are provided with clamping grooves 17. The width of the clamping grooves 17 is adapted to the width of the jaws 10. The clamping grooves 17 allow the jaws 10 to be better engaged, improving the stability and reliability of clamping and preventing the fuse body 16 from shaking or falling off during operation.
[0026] See Figure 1 , Figure 2 One end of the worm gear 11 is rotatably connected to the inner wall of the mounting base 1, and a hexagonal block is installed on the other end of the worm gear 11. The hexagonal block facilitates the operator's use of tools for rotation. The worm gear 11 is made of insulating material to prevent current from being conducted to the operator through the worm gear 11, thereby improving the safety of operation.
[0027] See Figure 3 Each gripper 10 has an arc groove on one side of its outer wall, and the inner wall of the arc groove is covered with an anti-slip texture, which increases the stability of the gripping.
[0028] Working principle: The operator rotates the hexagonal block at one end of the worm gear 11. The rotation of the worm gear 11 drives the worm wheel 12 and the threaded rod 13 to rotate. When the threaded rod 13 rotates, the moving column 14 moves linearly along the threaded rod 13. The linear movement of the moving column 14 drives the connecting brackets 15 on both sides of the top end to move, which drives the push rod 4 to slide vertically within the fixed housing 3. The sliding of the push rod 4 drives the toothed block 5 to move. The toothed block 5 drives the gear rod 6 to rotate around the rotation connection point with the inner wall of the fixed housing 3 through tooth meshing. The rotation of the gear rod 6 drives the first connecting bracket 7 and the second connecting bracket 8 to move. The rotating rod 9 rotates accordingly, thereby realizing the opening or closing of the gripper 10. The four grippers 10 move synchronously and finally abut against both sides of the fuse body 16. The grippers 10 are engaged in the clamping grooves 17 at both ends of the fuse body 16, realizing the stable clamping of the fuse body 16.
[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A high-voltage fuse mounting structure for easy and quick replacement, comprising a mounting base (1), characterized in that: Insulator bodies (2) are installed on both sides of the top of the mounting base (1). Each insulator body (2) is fixedly connected to a fixed outer shell (3) at its top. A push rod (4) is slidably connected to the inner wall of the fixed outer shell (3). A toothed block (5) is fixedly connected to the top of the push rod (4). A gear rod (6) is meshed with both sides of the toothed block (5). A first connecting bracket (7) and a second connecting bracket (8) are rotatably connected to both sides of the top of each gear rod (6). A rotating rod (9) is rotatably connected to the adjacent side of the first connecting bracket (7) and the second connecting bracket (8). One end of the gear rod (6) and the rotating rod (9) is rotatably connected to the inner wall of the fixed outer shell (3). A clamp (10) is fixedly connected to one side of the top of the first connecting bracket (7) and the second connecting bracket (8).
2. The high-voltage fuse installation structure for easy and quick replacement as described in claim 1, characterized in that: A worm gear (11) is rotatably connected to one inner wall of the mounting base (1), and a worm wheel (12) is meshed with one inner wall of the worm gear (11). A threaded rod (13) is fixedly connected to the middle of the worm wheel (12), and a moving column (14) is threadedly connected to the outer wall of the threaded rod (13). A connecting frame (15) is installed on both sides of the top of the moving column (14), and the end of each connecting frame (15) away from the moving column (14) is fixedly connected to the push rod (4).
3. The high-voltage fuse installation structure for easy and quick replacement as described in claim 2, characterized in that: The two jaws (10) are connected to the fuse body (16) on one side of their adjacent sides, and the other two jaws (10) are also connected to the fuse body (16) in a contacting manner.
4. The high-voltage fuse installation structure for easy and quick replacement as described in claim 3, characterized in that: Both ends of the fuse body (16) are provided with clamping grooves (17), and the width of the clamping grooves (17) is adapted to the width of the clamping claws (10).
5. The high-voltage fuse installation structure for easy and quick replacement as described in claim 4, characterized in that: The outer walls of both sides of the tooth block (5) are provided with multiple teeth, and the two sides of the tooth block (5) are respectively meshed with one end of the two gear rods (6) through the multiple teeth.
6. The high-voltage fuse installation structure for easy and quick replacement as described in claim 5, characterized in that: Each of the grippers (10) has an arc groove on one side of its outer wall, and the inner wall of the arc groove is covered with an anti-slip texture.
7. The high-voltage fuse installation structure for easy and quick replacement as described in claim 6, characterized in that: One end of the worm (11) is rotatably connected to the inner wall of the mounting base (1), and a hexagonal block is installed at the other end of the worm (11). The material of the worm (11) is insulating material.
8. The high-voltage fuse installation structure for easy and quick replacement as described in claim 7, characterized in that: The inner wall of the movable column (14) is provided with a threaded groove, and the movable column (14) is threadedly connected to the threaded rod (13) through the threaded groove. The threaded rod (13) is rotatably connected to the mounting base (1).