Dismounting tool convenient for replacing fuse

By designing an adjustable-length clamp rod assembly and clamp head structure, the problem of fixed length of insulating clamps was solved, improving the safety and convenience of fuse removal and simplifying the operation process.

CN224144525UActive Publication Date: 2026-04-21赵向孟
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
赵向孟
Filing Date
2025-04-24
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing insulated pliers have a fixed bar length, which cannot be adjusted according to the safety distance, resulting in inconvenience in operation and insufficient safety.

Method used

A disassembly tool for easy fuse replacement has been designed, comprising an adjustable-length clamp bar assembly and clamp heads. The clamp bar length is adjustable via a clamp bar sleeve assembly and a connecting unit, and is equipped with a cutting blade and serrated grooves for easy cable handling.

Benefits of technology

It enables adjustment of the clamp rod length according to the safety distance, improving operational safety and convenience, simplifying the fuse replacement process, and reducing space occupation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a dismounting tool convenient to replace a fuse, and relates to the technical field of insulating pliers, the dismounting tool comprises an insulating pliers head unit, the front and back of the right end of the insulating pliers head unit are fixedly provided with connecting units, and the right end of the insulating pliers head unit is fixedly provided with an insulating pliers rod device. According to the utility model, the length of the clamp rod can be adjusted according to the safe distance when the fuse is replaced by the insulating clamp through installing the clamp rod device of the insulating clamp, so that the safety is improved during shearing, in addition, the longer clamp rod is more convenient to shear a fuse wire, the shearing is labor-saving, in addition, after the fuse is replaced, the bolt is taken down, and the operation is convenient. When the insulating pliers are disassembled, the pliers rod is shrunk into the sleeve, and then the bolt is screwed into the sleeve, so that the insulating pliers can be conveniently stored, the occupied space is reduced, the connecting unit is installed, the pliers head and the pliers rod can be disassembled and separated, the pliers head or the pliers rod can be conveniently replaced, the pliers rod and the pliers head can be separated only by screwing the pliers rod during disassembly, and the operation is simple.
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Description

Technical Field

[0001] This utility model relates to the field of insulating pliers technology, specifically to a disassembly tool that facilitates the replacement of fuses. Background Technology

[0002] A fuse is an electrical device that breaks the circuit by melting its fusible element when the current exceeds a specified value. Insulating pliers are needed when removing fuses. These pliers are generally referred to as insulating clamps. Insulating clamps are tools used to install and remove high-voltage fuses or perform other similar tasks. They are mainly used in power systems of 35kV and below. The length of existing insulating clamps is fixed and cannot be adjusted according to the safe distance from the fuse, which is inconvenient to use and has poor safety.

[0003] In the prior art, a Chinese utility model patent document with publication number CN217719479U and publication date November 1, 2022, is proposed to solve the above-mentioned technical problems. The technical solution disclosed in this patent document is as follows: a disassembly tool for easy replacement of fuses, including an operating rod, a mounting plate and a pliers head; a fixed shaft is installed between the mounting plates, a rotating frame is symmetrically arranged between the mounting plates, the rotating frame is provided with a slot, the slot is provided with a bolt hole, the pliers head is equipped with a plug, both the plug and the pliers head are provided with mounting holes, and mounting bolts are movably connected in the mounting holes.

[0004] To address the issue of fixed-length insulated clamps that make it difficult to adjust for safety distances, existing insulated clamps have fixed lengths that cannot be adjusted. However, the safety distance of the clamps is uncertain and needs to be adjusted accordingly. If a fixed clamp length is used, it is inconvenient for the operator to hold the insulated clamps when adjusting the safety distance, making it difficult to cut fuses and preventing the clamps from cutting due to insufficient length. Utility Model Content

[0005] This invention provides a disassembly tool that facilitates fuse replacement, thereby solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A disassembly tool for easy replacement of fuses includes an insulated pliers head unit, with connecting units fixedly installed at both the front and rear of the right end of the insulated pliers head unit, and an insulated pliers bar device fixedly installed at the right end of the insulated pliers head unit.

[0008] The insulated clamp rod device includes a clamp rod assembly. The left end of the clamp rod assembly is fixedly installed on the right end of the connecting unit, and a clamp rod sleeve assembly is slidably installed on the outer wall of the clamp rod assembly.

[0009] A further improvement of the present invention is that the insulated pliers head unit includes a pliers head body, and a mounting component is rotatably connected to the right side of the pliers head body.

[0010] A further improvement of this utility model is that a shearing blade is fixedly connected to the middle position of the pliers head body, and serrated grooves are provided on the left side of the pliers head body, and the serrated grooves are arranged in different sizes.

[0011] In the above technical solution, the cutting blade on the pliers head can cut the parts that need to be disassembled, and the serrated groove can pull the cables together, connecting the wires and facilitating the replacement of the fuse. In addition, the serrated grooves are of different sizes, which can pull the cables of different diameters.

[0012] A further improvement of the present invention is that the connecting unit includes a connecting block, the left outer wall of the connecting block is fixedly connected to the right side of the mounting component, the connecting block is provided with threaded grooves, and the connecting block is threaded with threaded posts.

[0013] In the above technical solution, the connecting block and threaded post can separate the pliers head from the pliers bar, which facilitates the replacement of the pliers head or the pliers bar. Moreover, during disassembly, the pliers bar can be separated from the pliers head simply by turning the pliers bar, making the operation simple.

[0014] A further improvement of the present invention is that the clamp rod assembly includes a clamp rod, the left outer wall of the clamp rod is fixedly connected to the right outer wall of the threaded column, and a threaded hole is provided on the outer wall of the clamp rod.

[0015] A further improvement of the present invention is that the clamp rod sleeve assembly includes a sleeve, the inner wall of the sleeve and the outer wall of the clamp rod are slidably connected, and the outer wall of the sleeve is provided with two threaded holes.

[0016] In the above technical solution, when adjusting the length of the clamp rod, slide the clamp rod out from the first threaded hole until it is adjusted to a suitable length, and then screw the bolt into the first and second threaded holes to fix it. The length of the clamp rod can be adjusted according to the safe distance, which improves safety during cutting.

[0017] A further improvement of this utility model is that: both the second threaded hole and the first threaded hole are threaded with bolts, and the upper surface of the sleeve is fixedly connected with anti-slip pads.

[0018] In the above technical solution, the anti-slip pad can prevent hands from slipping when replacing fuses, and the anti-slip pad can absorb sweat from the palms, reducing the phenomenon of slipping.

[0019] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0020] 1. This utility model provides a disassembly tool for easily replacing fuses. An insulated pliers lever device is installed on the device. Through the set lever assembly and lever sleeve assembly, the length of the lever can be adjusted according to the safe distance when replacing fuses, which improves safety during cutting. In addition, the longer lever makes it easier to cut the fuse wire without effort. After the fuse is replaced, the bolt is removed, allowing the lever to retract into the sleeve, and then the bolt is screwed back in, which facilitates the storage of the insulated pliers and reduces the space occupied.

[0021] 2. This utility model provides a disassembly tool that facilitates the replacement of fuses. A connecting unit is installed on the device. Through the set connecting block and threaded post, the pliers head and pliers bar can be disassembled and separated, which is convenient for replacing the pliers head or pliers bar. Moreover, during disassembly, the pliers bar can be separated from the pliers head simply by turning the pliers bar, which is simple to operate.

[0022] 3. This utility model provides a disassembly tool that facilitates fuse replacement. The cutting blade on the pliers head can cut the parts to be disassembled, and the serrated groove can pull the cables together, connecting the wires and facilitating fuse replacement. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This utility model is for Figure 1 A schematic diagram of the structure when open;

[0025] Figure 3 This utility model is for Figure 1 A schematic diagram of the split structure of the connecting unit;

[0026] Figure 4 This utility model is for Figure 3 Enlarged view of Figure A;

[0027] Figure 5 This utility model is for Figure 1 A schematic diagram showing the disassembled structure of the insulated clamp lever device.

[0028] In the diagram: 1. Insulated pliers head unit; 2. Connecting unit; 3. Insulated pliers bar assembly; 11. Pliers head body; 12. Mounting component; a1. Shearing blade; a2. Serrated groove; 21. Connecting block; 22. Threaded post; 31. Pliers bar assembly; 32. Pliers bar sleeve assembly; b1. Pliers bar; b2. Threaded hole one; c1. Sleeve; c2. Threaded hole two; c3. Bolt; c4. Anti-slip pad. Detailed Implementation

[0029] Please see Figure 1-5 This utility model provides a technical solution: a disassembly tool for easy fuse replacement, including an insulated pliers head unit 1. Connecting units 2 are fixedly installed at both the front and rear of the right end of the insulated pliers head unit 1. Installing the connecting units 2 allows for the disassembly and separation of the pliers head and pliers bar b1, facilitating the replacement of either the pliers head or the pliers bar b1. Disassembly is simple; only the pliers bar b1 needs to be turned to separate it from the pliers head. An insulated pliers bar device 3 is fixedly installed at the right end of the insulated pliers head unit 1. Installing the insulated pliers bar device 3 allows the length of the pliers bar b1 to be adjusted according to a safe distance when replacing the fuse, improving safety during cutting. Furthermore, a longer pliers bar b1 makes cutting the fuse wire easier and less strenuous. After the fuse is replaced, the bolt c3 is removed, allowing the pliers bar b1 to retract into the sleeve c1, and then the bolt c3 is screwed back in, facilitating storage of the insulated pliers and reducing space occupation.

[0030] In this embodiment, the insulating pliers head unit 1 includes a pliers head body 11. A mounting component 12 is rotatably connected to the right side of the pliers head body 11. A cutting blade a1 is fixedly connected to the middle position of the pliers head body 11. A serrated groove a2 is provided on the left side of the pliers head body 11, and the serrated grooves a2 are arranged in different sizes. The cutting blade a1 on the pliers head can cut the parts that need to be disassembled, and the serrated grooves a2 can pull the cables so that the wires are connected to each other, which helps to replace the fuse.

[0031] Preferably, the connecting unit 2 includes a connecting block 21. The left outer wall of the connecting block 21 is fixedly connected to the right side of the mounting part 12. Each connecting block 21 has a threaded groove and a threaded post 22 is threadedly connected to it. By installing the connecting unit 2 on the device, the pliers head and the pliers bar b1 can be disassembled and separated through the connecting block 21 and the threaded post 22, which facilitates the replacement of the pliers head or the pliers bar b1. Moreover, during disassembly, the pliers bar b1 can be separated from the pliers head simply by turning the pliers bar b1, which is simple to operate.

[0032] Further selected, the insulated clamp lever device 3 includes a clamp lever assembly 31. The left end of the clamp lever assembly 31 is fixedly installed on the right end of the connecting unit 2. A clamp lever sleeve assembly 32 is slidably installed on the outer wall of the clamp lever assembly 31. The clamp lever assembly 31 includes a clamp lever b1. The left outer wall of the clamp lever b1 is fixedly connected to the right outer wall of the threaded post 22. A threaded hole b2 is opened on the outer wall of the clamp lever b1. The clamp lever sleeve assembly 32 includes a sleeve c1. The inner wall of the sleeve c1 is slidably connected to the outer wall of the clamp lever b1. A threaded hole c2 is opened on the outer wall of the sleeve c1. A bolt c3 is threadedly connected to both the threaded hole c2 and the threaded hole b2. An anti-slip pad c4 is fixedly connected to the upper surface of the sleeve c1. The anti-slip pad c4 prevents hand slippage when replacing fuses and absorbs sweat from the palms, reducing slippage. An insulated pliers lever assembly 3 is installed on the device. Through the lever assembly 31 and lever sleeve assembly 32, the length of the lever b1 can be adjusted according to a safe distance when replacing fuses, improving safety during cutting. Furthermore, the longer lever b1 makes cutting the fuse wire easier and less strenuous. After fuse replacement, the bolt c3 is removed, allowing the lever b1 to retract into the sleeve c1 before the bolt c3 is screwed back in, facilitating storage of the insulated pliers and reducing space occupation.

[0033] The working principle of this disassembly tool, which facilitates fuse replacement, will be explained in detail below.

[0034] like Figure 1-5 As shown, when adjusting the length of the clamp rod b1, slide the clamp rod b1 out from the threaded hole one b2 until it is adjusted to the appropriate length. Then screw the bolt c3 into the threaded hole one b2 and the threaded hole two c2 to fix it. After the fuse is replaced, remove the bolt c3 so that the clamp rod b1 retracts into the sleeve c1. Then screw the bolt c3 in. If the clamp rod b1 needs to be replaced, it can be removed by turning the clamp rod b1 in the connecting block 21.

[0035] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A dismounting tool for facilitating replacement of a fuse, comprising an insulating plier head unit (1), characterized in that: The insulating pliers head unit (1) has a connecting unit (2) fixedly installed at both the front and rear of the right end, and an insulating pliers bar device (3) is fixedly installed at the right end of the insulating pliers head unit (1). The insulating clamp rod device (3) includes a clamp rod assembly (31). The left end of the clamp rod assembly (31) is fixedly installed on the right end of the connecting unit (2). A clamp rod sleeve assembly (32) is slidably installed on the outer wall of the clamp rod assembly (31).

2. A removal tool for facilitating replacement of a fuse according to claim 1, wherein: The insulated pliers head unit (1) includes a pliers head body (11), and a mounting piece (12) is rotatably connected to the right side of the pliers head body (11).

3. A removal tool for facilitating replacement of a fuse according to claim 2, wherein: A shearing blade (a1) is fixedly connected to the middle position of the pliers head body (11). A serrated groove (a2) is provided on the left side of the pliers head body (11), and the serrated grooves (a2) are arranged in different sizes.

4. The removal tool of claim 2, wherein: The connecting unit (2) includes a connecting block (21). The left outer wall of the connecting block (21) is fixedly connected to the right side of the mounting part (12). The connecting block (21) is provided with threaded grooves and threaded columns (22) are threadedly connected to the connecting block (21).

5. A removal tool for facilitating replacement of a fuse according to claim 4, wherein: The clamp rod assembly (31) includes a clamp rod (b1), the left outer wall of the clamp rod (b1) is fixedly connected to the right outer wall of the threaded column (22), and a threaded hole (b2) is provided on the outer wall of the clamp rod (b1).

6. A removal tool for facilitating replacement of a fuse according to claim 5, wherein: The clamp bar sleeve assembly (32) includes a sleeve (c1), the inner wall of the sleeve (c1) and the outer wall of the clamp bar (b1) are slidably connected, and the outer wall of the sleeve (c1) is provided with threaded holes (c2).

7. A removal tool for facilitating replacement of a fuse according to claim 6, wherein: Both the second threaded hole (c2) and the first threaded hole (b2) are threaded with bolts (c3), and the upper surface of the sleeve (c1) is fixedly connected with anti-slip pads (c4).

Citation Information

Patent Citations

  • Dismounting tool convenient for replacing fuse

    CN217719479U