High-voltage fuse

Abstract

The utility model discloses a high-voltage fuse which comprises a high-voltage fuse body, a top limiting support is arranged on the upper portion of the high-voltage fuse body, and a bottom limiting support is arranged on the lower portion of the high-voltage fuse body. The top limiting support comprises a fixed plate, a telescopic plate, a limiting lantern ring, a sliding groove, a first mounting plate, a limiting cavity, a guide ring, a guide rod and a limiting block, the bottom limiting support comprises a second mounting plate, a cantilever plate, a fixed ring, a movable ring, an annular mounting groove and a spiral spring, and the limiting lantern ring is arranged on the upper portion of the high-voltage fuse body in a sleeving mode. And the fixing ring is sleeved at the lower part of the high-voltage fuse body. According to the high-voltage fuse provided by the utility model, the bottom limiting bracket and the top limiting bracket are arranged, so that the high-voltage fuse body can be conveniently assembled and disassembled, the operation is convenient and fast, and external tools are not needed during disassembly.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage fuse technology, specifically a high-voltage fuse. Background Technology

[0002] High-voltage fuses, as important protective devices in power systems, are widely used in power distribution networks and electrical equipment to cut off current and protect equipment safety when overloads or short circuits occur. However, existing high-voltage fuses have significant shortcomings in terms of installation and removal.

[0003] Currently, high-voltage fuses are typically fixed to brackets using bolts, which reveals the following drawbacks in practical use:

[0004] 1. Cumbersome operation: Special tools (such as wrenches) are required to tighten or loosen bolts during installation and disassembly, which increases the complexity and time cost of the operation;

[0005] 2. Low efficiency: In scenarios involving frequent maintenance or replacement of fuses, bolted connections are inefficient and cannot meet the needs of rapid operation.

[0006] 3. Reliance on external tools: If suitable tools are not available on site, installation or disassembly may not be completed, affecting the timely maintenance of the power system.

[0007] Therefore, we propose a high-voltage fuse. Utility Model Content

[0008] (a) Technical problems to be solved

[0009] In view of the shortcomings of the prior art, this utility model provides a high-voltage fuse, which facilitates the assembly and disassembly of the high-voltage fuse body and is easy to operate, and can effectively solve the problems in the background art.

[0010] (II) Technical Solution

[0011] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-voltage fuse, comprising a high-voltage fuse body, a top limiting bracket provided on the upper part of the high-voltage fuse body, and a bottom limiting bracket provided on the lower part of the high-voltage fuse body. The top limiting bracket includes a fixed plate, a telescopic plate, a limiting collar, a sliding groove, a first mounting plate, a limiting cavity, a guide ring, a guide rod, and a limiting block. The bottom limiting bracket includes a second mounting plate, a cantilever plate, a fixed ring, a movable ring, an annular mounting groove, and a helical spring. The limiting collar is sleeved on the upper part of the high-voltage fuse body, and the fixed ring is sleeved on the lower part of the high-voltage fuse body.

[0012] Preferably, the first mounting plate is fixedly installed at the rear end of the fixed plate, the sliding groove is formed on the front outer surface of the fixed plate, the limiting collar is fixedly installed on the front outer surface of the telescopic plate, and the outer walls of the telescopic plate and the limiting collar are slidably connected to the sliding groove.

[0013] Preferably, the guide rod and the limiting block are both located in the slide groove. The outer surface of the rear end of the guide rod is fixedly connected to the middle of the rear end of the slide groove. The limiting block is fixedly installed on the outer surface of the front end of the guide rod. The guide ring is opened in the middle of the outer surface of the rear end of the telescopic plate. The limiting cavity is opened inside the telescopic plate. The inner cavity of the guide ring communicates with the limiting cavity. The telescopic plate is slidably connected to the outer wall of the guide rod through the guide ring. The outer wall of the limiting block and the limiting cavity are slidably connected.

[0014] Preferably, the second mounting plate is fixedly installed on the outer surface of the rear end of the cantilever plate, and the fixing ring is fixedly installed on the outer surface of the front end of the cantilever plate.

[0015] Preferably, the annular mounting groove is formed on the upper outer surface of the fixed ring, and the outer wall of the movable ring is slidably connected to the annular mounting groove.

[0016] Preferably, the helical spring is fixedly installed between the bottom of the annular mounting groove and the lower outer surface of the movable ring, and the lower outer surface of the movable ring is elastically connected to the bottom of the annular mounting groove through the helical spring.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a high-voltage fuse with the following advantages:

[0019] 1. This high-voltage fuse, through the combined design of the top and bottom limiting brackets, allows the fuse body to be quickly snapped and fixed without bolts, significantly simplifying the installation and disassembly process and improving operational efficiency.

[0020] 2. This high-voltage fuse adopts a sliding limit and elastic support structure (such as a helical spring and a movable ring). Users only need to push, pull or press to complete the installation or removal of the fuse, avoiding the dependence on tools in the traditional way. It is especially suitable for emergency maintenance or scenarios where tools are inconvenient. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a high-voltage fuse according to the present invention.

[0022] Figure 2 This is a schematic diagram of the structure of the high-voltage fuse body in the high-voltage fuse of this utility model.

[0023] Figure 3This is a schematic diagram of the top limiting bracket in a high-voltage fuse according to the present invention.

[0024] Figure 4 This is a top cross-sectional view of the top limiting bracket in a high-voltage fuse according to the present invention.

[0025] Figure 5 This is a schematic diagram of the bottom limiting bracket in a high-voltage fuse according to the present invention.

[0026] Figure 6 This is a top cross-sectional view of the bottom limiting bracket in a high-voltage fuse according to this utility model.

[0027] In the diagram: 1. High-voltage fuse body; 2. Top limiting bracket; 3. Bottom limiting bracket; 4. Fixing plate; 5. Telescopic plate; 6. Limiting collar; 7. Slide groove; 8. First mounting plate; 9. Limiting cavity; 10. Guide ring; 11. Guide rod; 12. Limiting block; 13. Second mounting plate; 14. Cantilever plate; 15. Fixing ring; 16. Movable ring; 17. Annular mounting groove; 18. Helical spring. Detailed Implementation

[0028] 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.

[0029] This embodiment is a high-voltage fuse.

[0030] like Figure 1-6 As shown, the device includes a high-voltage fuse body 1. A top limiting bracket 2 is provided on the upper part of the high-voltage fuse body 1, and a bottom limiting bracket 3 is provided on the lower part of the high-voltage fuse body 1. The top limiting bracket 2 includes a fixed plate 4, a telescopic plate 5, a limiting collar 6, a sliding groove 7, a first mounting plate 8, a limiting cavity 9, a guide ring 10, a guide rod 11, and a limiting block 12. The bottom limiting bracket 3 includes a second mounting plate 13, a cantilever plate 14, a fixed ring 15, a movable ring 16, an annular mounting groove 17, and a coil spring 18. The limiting collar 6 is fitted on the upper part of the high-voltage fuse body 1, and the fixed ring 15 is fitted on the lower part of the high-voltage fuse body 1.

[0031] The first mounting plate 8 is fixedly installed at the rear end of the fixed plate 4. The sliding groove 7 is formed on the outer surface of the front end of the fixed plate 4. The limiting collar 6 is fixedly installed on the outer surface of the front end of the telescopic plate 5. The outer walls of the telescopic plate 5 and the limiting collar 6 are slidably connected to the sliding groove 7. The guide rod 11 and the limiting block 12 are both located in the sliding groove 7. The outer surface of the rear end of the guide rod 11 is fixedly connected to the middle of the rear end of the sliding groove 7. The limiting block 12 is fixedly installed on the outer surface of the front end of the guide rod 11. The guide ring 10 is formed in the middle of the outer surface of the rear end of the telescopic plate 5. The limiting cavity 9 is formed inside the telescopic plate 5. The inner cavity of the guide ring 10 communicates with the limiting cavity 9, and the telescopic plate 5 is connected to the sliding groove 7. The guide ring 10 is slidably connected to the outer wall of the guide rod 11, and the outer wall of the limiting block 12 is slidably connected to the limiting cavity 9; the second mounting plate 13 is fixedly installed on the outer rear end of the cantilever plate 14, and the fixing ring 15 is fixedly installed on the outer front end of the cantilever plate 14; the annular mounting groove 17 is opened on the upper outer surface of the fixing ring 15, and the outer wall of the movable ring 16 is slidably connected to the annular mounting groove 17; the helical spring 18 is fixedly installed between the bottom of the annular mounting groove 17 and the lower outer surface of the movable ring 16, and the lower outer surface of the movable ring 16 is elastically connected to the bottom of the annular mounting groove 17 through the helical spring 18.

[0032] It should be noted that this utility model is a high-voltage fuse. The top limiting bracket 2 and the bottom limiting bracket 3 are used for installing the high-voltage fuse body 1. The top limiting bracket 2 and the bottom limiting bracket 3 are fixed on the transformer bracket. When installing the high-voltage fuse body 1, firstly, push the limiting collar 6 in the top limiting bracket 2. The limiting collar 6 drives the telescopic plate 5 to move along the slide groove 7. The telescopic plate 5 enters the slide groove 7. Then, insert the lower end of the high-voltage fuse body 1 into the movable ring 16 and the fixed ring 15. The bottom of the high-voltage fuse body 1 squeezes the movable ring 16. The movable ring 16 moves along... The annular mounting groove 17 compresses the helical spring 18, and then the limiting collar 6 is pulled forward to move the limiting collar 6 to the upper part of the high-voltage fuse body 1. Due to the reaction force of the helical spring 18, the high-voltage fuse body 1 is lifted, and the upper part of the high-voltage fuse body 1 passes through the limiting collar 6, thereby limiting the high-voltage fuse body 1 between the fixing ring 15 and the limiting collar 6, realizing the installation of the high-voltage fuse body 1 and facilitating disassembly. When disassembling, the high-voltage fuse body 1 is pressed down and the limiting collar 6 is pushed to one side, so that the high-voltage fuse body 1 can be pulled out, improving the efficiency of assembly and disassembly.

[0033] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-voltage fuse, comprising a high-voltage fuse body (1), characterized in that: The upper part of the high-voltage fuse body (1) is provided with a top limiting bracket (2), and the lower part of the high-voltage fuse body (1) is provided with a bottom limiting bracket (3). The top limiting bracket (2) includes a fixed plate (4), a telescopic plate (5), a limiting collar (6), a sliding groove (7), a first mounting plate (8), a limiting cavity (9), a guide ring (10), a guide rod (11), and a limiting block (12). The bottom limiting bracket (3) includes a second mounting plate (13), a cantilever plate (14), a fixed ring (15), a movable ring (16), an annular mounting groove (17), and a spiral spring (18). The limiting collar (6) is sleeved on the upper part of the high-voltage fuse body (1), and the fixed ring (15) is sleeved on the lower part of the high-voltage fuse body (1).

2. A high-voltage fuse according to claim 1, characterized in that: The first mounting plate (8) is fixedly installed on the rear end of the fixed plate (4), the slide groove (7) is opened on the front outer surface of the fixed plate (4), the limiting collar (6) is fixedly installed on the front outer surface of the telescopic plate (5), and the outer wall of the telescopic plate (5), the limiting collar (6) and the slide groove (7) are slidably connected.

3. A high-voltage fuse according to claim 2, characterized in that: The guide rod (11) and the limiting block (12) are both located in the slide groove (7). The outer surface of the rear end of the guide rod (11) is fixedly connected to the middle of the rear end of the slide groove (7). The limiting block (12) is fixedly installed on the outer surface of the front end of the guide rod (11). The guide ring (10) is opened in the middle of the outer surface of the rear end of the telescopic plate (5). The limiting cavity (9) is opened inside the telescopic plate (5). The inner cavity of the guide ring (10) is connected to the limiting cavity (9). The telescopic plate (5) is slidably connected to the outer wall of the guide rod (11) through the guide ring (10). The outer wall of the limiting block (12) is slidably connected to the limiting cavity (9).

4. A high-voltage fuse according to claim 3, characterized in that: The second mounting plate (13) is fixedly installed on the outer rear end surface of the cantilever plate (14), and the fixing ring (15) is fixedly installed on the outer front end surface of the cantilever plate (14).

5. A high-voltage fuse according to claim 4, characterized in that: The annular mounting groove (17) is formed on the upper outer surface of the fixed ring (15), and the outer wall of the movable ring (16) is slidably connected to the annular mounting groove (17).

6. A high-voltage fuse according to claim 5, characterized in that: The helical spring (18) is fixedly installed between the bottom of the annular mounting groove (17) and the lower outer surface of the movable ring (16). The lower outer surface of the movable ring (16) is elastically connected to the bottom of the annular mounting groove (17) through the helical spring (18).

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