Novel high-voltage fuse

Abstract

The utility model discloses a novel high-voltage fuse, which relates to the field of high-voltage fuses and comprises a high-voltage fuse main body, a mounting flange is sleeved on the high-voltage fuse main body, four mounting bolt structures are symmetrically mounted on the mounting flange, and each mounting bolt structure consists of a bolt main body, a rotating plate and a first latch. The bolt main body is fixedly installed at the lower end of the rotating plate, a plurality of first latches are annularly distributed on the outer wall of the rotating plate, a driving assembly is rotatably installed on the high-voltage fuse main body, and four installation bolt structures are arranged on the installation flange, and the driving assembly is arranged on the high-voltage fuse main body. Meanwhile, the four mounting bolt structures are matched with the driving assembly, and the four mounting bolt structures can be rotated at the same time by utilizing the driving assembly, so that the disassembly and assembly of the high-voltage fuse main body are completed, the disassembly and assembly steps of the high-voltage fuse main body are relatively simple and convenient, and finally the disassembly and assembly efficiency of the high-voltage fuse main body is relatively high.

Description

Technical Field

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

[0002] High-voltage fuses are crucial safety protection devices in power systems. Their core function is to quickly and effectively disconnect the circuit when the current abnormally rises to a preset threshold, thus preventing damage to electrical equipment due to overload or short circuit. The design principle of this device is based on the thermal fusing characteristics of the fusible element, using a conductor of a specific material as the fusible element, connected in series in the circuit. Once the current exceeds the safe range, the fusible element will heat up and quickly melt, creating an open circuit and protecting the circuit and equipment. High-voltage fuses come in many types, including indoor and outdoor types (such as drop-out and post-mounted), fast-acting fuses, and special-purpose fuses suitable for different environments and applications. They are not only compact in structure but also reliable in operation, directly providing circuit protection without the need for complex relay protection and secondary circuit coordination. Therefore, high-voltage fuses are widely used in the protection of critical electrical equipment such as high-voltage transmission lines, power transformers, current transformers, and power capacitors, and are an important component in ensuring the stable operation of the power system and guaranteeing electrical safety. High-voltage fuses are often fixed to the transformer tank by multiple bolts. Therefore, during the disassembly and assembly of high-voltage fuses, tools are needed to remove and install each bolt one by one. However, this process is tedious and troublesome, resulting in low disassembly and assembly efficiency of high-voltage fuses. Therefore, a new type of high-voltage fuse is needed to improve the disassembly and assembly efficiency of high-voltage fuses. Utility Model Content

[0003] The main objective of this invention is to provide a novel high-voltage fuse that can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A novel high-voltage fuse includes a high-voltage fuse body with a mounting flange fitted on it. Four mounting bolt structures are symmetrically mounted on the mounting flange. Each mounting bolt structure consists of a bolt body, a rotating plate, and first retaining teeth. The bolt body is fixedly mounted on the lower end of the rotating plate. Several first retaining teeth are arranged in a ring on the outer wall of the rotating plate. A drive assembly is rotatably mounted on the high-voltage fuse body. The drive assembly consists of a mounting base ring, an anti-detachment ring, second retaining teeth, and a rotating handle. The anti-detachment ring is fitted onto the mounting base ring. Several second retaining teeth are arranged in a ring on the outer wall of the mounting base ring, and are located on the upper and lower sides of the anti-detachment ring, respectively, and engage with the first retaining teeth. Several rotating handles are symmetrically fixedly mounted on the upper end of the mounting base ring.

[0006] Preferably, the mounting flange is fixedly connected to the high-voltage fuse body.

[0007] Preferably, the mounting flange has four symmetrical mounting screw holes, and the mounting screw holes pass through the mounting flange from top to bottom.

[0008] Preferably, the bolt body on the mounting bolt structure is installed in the mounting bolt hole opened on the mounting flange, and the rotating plate and the first retaining tooth are both located above the mounting flange.

[0009] Preferably, the first locking tooth of the mounting bolt structure has a limiting groove, and the first locking tooth is fixedly connected to the rotating plate.

[0010] Preferably, the drive assembly is located above the mounting flange, the mounting base ring is movably sleeved on the high-voltage fuse body, the mounting base ring is fixedly connected to the anti-detachment ring and the second retaining tooth, and the anti-detachment ring is also embedded in the limiting groove opened on the first retaining tooth.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By setting four mounting bolt structures on the mounting flange and setting a drive assembly on the high-voltage fuse body, the four mounting bolt structures cooperate with the drive assembly. The drive assembly can rotate the four mounting bolt structures simultaneously, thereby completing the disassembly and assembly of the high-voltage fuse body. This makes the disassembly and assembly steps of the high-voltage fuse body simpler and more convenient, and ultimately improves the disassembly and assembly efficiency of the high-voltage fuse body. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 For the present utility model Figure 1 A magnified view of point A;

[0015] Figure 3 This is a structural schematic diagram of the high-voltage fuse body and mounting flange of this utility model;

[0016] Figure 4 This is a schematic diagram of the mounting bolt structure and drive assembly of this utility model;

[0017] Figure 5 For the present utility model Figure 4 Enlarged view of point B.

[0018] In the diagram: 1. High-voltage fuse body; 2. Mounting flange; 3. Mounting bolt structure; 4. Drive assembly; 5. Mounting screw hole; 6. Bolt body; 7. Rotating plate; 8. First locking tooth; 9. Limiting groove; 10. Mounting base ring; 11. Anti-detachment ring; 12. Second locking tooth; 13. Rotating handle. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a novel high-voltage fuse includes a high-voltage fuse body 1, a mounting flange 2 fitted onto the high-voltage fuse body 1, and four mounting bolt structures 3 symmetrically mounted on the mounting flange 2. Each mounting bolt structure 3 consists of a bolt body 6, a rotating plate 7, and first retaining teeth 8. The bolt body 6 is fixedly mounted on the lower end of the rotating plate 7. Several first retaining teeth 8 are arranged in a ring on the outer wall of the rotating plate 7. A drive assembly 4 is rotatably mounted on the high-voltage fuse body 1. The drive assembly 4 consists of a mounting base ring 10, an anti-detachment ring 11, second retaining teeth 12, and a rotating handle 13. The anti-detachment ring 11 is fitted onto the mounting base ring 10. Several second retaining teeth 12 are arranged in a ring on the outer wall of the mounting base ring 10, and the second retaining teeth 12 are located on the upper and lower sides of the anti-detachment ring 11, respectively. The second locking tooth 12 engages with the first locking tooth 8. Several rotating handles 13 are symmetrically fixedly installed on the upper end of the mounting base ring 10. When installing the high-voltage fuse body 1 onto the transformer tank, part of the high-voltage fuse body 1 can be inserted into the transformer tank first, so that the mounting flange 2 finally contacts the transformer tank. Then, the mounting bolt structure 3 is rotated by the drive assembly 4, so that the bolt body 6 on the mounting bolt structure 3 is finally screwed into the threaded hole opened on the transformer tank. Conversely, when it is necessary to remove the high-voltage fuse body 1 from the transformer tank, the mounting bolt structure 3 can be rotated in the opposite direction by the drive assembly 4, so that the bolt body 6 is unscrewed from the transformer tank. Finally, the high-voltage fuse body 1 can be pulled out from the transformer tank.

[0021] Finally, by setting four mounting bolt structures 3 on the mounting flange 2 and setting a drive assembly 4 on the high-voltage fuse body 1, the four mounting bolt structures 3 and the drive assembly 4 are coordinated. The drive assembly 4 can rotate the four mounting bolt structures 3 at the same time, thereby completing the disassembly and assembly of the high-voltage fuse body 1. This makes the disassembly and assembly steps of the high-voltage fuse body 1 simpler and more convenient, and ultimately improves the disassembly and assembly efficiency of the high-voltage fuse body 1.

[0022] Furthermore, the mounting flange 2 is fixedly connected to the high-voltage fuse body 1. Four mounting screw holes 5 are symmetrically provided on the mounting flange 2, passing through it vertically. When installing the high-voltage fuse body 1 onto the transformer housing, the mounting screw holes 5 must be coaxial with the threaded holes on the transformer housing. The bolt body 6 on the mounting bolt structure 3 is installed within the mounting screw holes 5 on the mounting flange 2. The rotating plate 7 and the first retaining tooth 8 are both located above the mounting flange 2. The first retaining tooth 8 on the mounting bolt structure 3 has a limit groove 9, and it is fixedly connected to the rotating plate 7. When the mounting bolt structure 3 rotates, the bolt body 6 moves within the mounting screw holes 5. As the bolt body 6 gradually screws into the threaded holes on the transformer housing, the high-voltage fuse body 1 is gradually fixed to the transformer housing. Conversely, as the bolt body 6 gradually screws out of the threaded holes on the transformer housing, the fixing of the high-voltage fuse body 1 is gradually released.

[0023] Furthermore, the drive assembly 4 is located above the mounting flange 2, and the mounting base ring 10 is movably sleeved on the high-voltage fuse body 1. The mounting base ring 10 is fixedly connected to the anti-detachment ring 11 and the second retaining tooth 12. The anti-detachment ring 11 is also embedded in the limiting groove 9 opened on the first retaining tooth 8. The entire drive assembly 4 can be rotated on the high-voltage fuse body 1 by rotating the handle 13 on the drive assembly 4. As the drive assembly 4 rotates, the second retaining tooth 12 on the drive assembly 4 will drive the mounting bolt structure 3 to rotate. At the same time, since the anti-detachment ring 11 is located in the limiting groove 9 opened on the first retaining tooth 8, when the bolt body 6 moves in the mounting bolt hole 5, the drive assembly 4 will move together with the mounting bolt structure 3.

[0024] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel high-voltage fuse, comprising a high-voltage fuse body (1), wherein a mounting flange (2) is fitted onto the high-voltage fuse body (1), characterized in that: Four mounting bolt structures (3) are symmetrically mounted on the mounting flange (2). Each mounting bolt structure (3) consists of a bolt body (6), a rotating plate (7), and a first retaining tooth (8). The bolt body (6) is fixedly mounted on the lower end of the rotating plate (7). The first retaining tooth (8) has several teeth arranged in a ring on the outer wall of the rotating plate (7). A drive assembly (4) is rotatably mounted on the high-voltage fuse body (1). The drive assembly (4) consists of a mounting base ring (10) and an anti-detachment ring. (11), the second locking tooth (12) and the rotating handle (13) are composed of the anti-detachment ring (11) sleeved on the mounting base ring (10), the second locking tooth (12) has a number of them and is distributed in a ring on the outer wall of the mounting base ring (10), the second locking tooth (12) is located on the upper and lower sides of the anti-detachment ring (11) respectively, and the second locking tooth (12) meshes with the first locking tooth (8), and the rotating handle (13) has a number of them and is symmetrically fixedly installed on the upper end of the mounting base ring (10).

2. The novel high-voltage fuse according to claim 1, characterized in that: The mounting flange (2) is fixedly connected to the high-voltage fuse body (1).

3. A novel high-voltage fuse according to claim 2, characterized in that: The mounting flange (2) has four symmetrical mounting screw holes (5), and the mounting screw holes (5) pass through the mounting flange (2) from top to bottom.

4. A novel high-voltage fuse according to claim 3, characterized in that: The bolt body (6) on the mounting bolt structure (3) is installed in the mounting bolt hole (5) opened on the mounting flange (2), and the rotating plate (7) and the first retaining tooth (8) are both located above the mounting flange (2).

5. A novel high-voltage fuse according to claim 4, characterized in that: The first locking tooth (8) on the mounting bolt structure (3) has a limiting groove (9), and the first locking tooth (8) is fixedly connected to the rotating plate (7).

6. A novel high-voltage fuse according to claim 5, characterized in that: The drive assembly (4) is located above the mounting flange (2). The mounting base ring (10) is movably sleeved on the high voltage fuse body (1). The mounting base ring (10) is fixedly connected to the anti-detachment ring (11) and the second locking tooth (12). The anti-detachment ring (11) is also embedded in the limiting groove (9) opened on the first locking tooth (8).

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