Fuse type disconnecting switch

Abstract

The utility model discloses a fuse type disconnecting switch which comprises a base, partition plates are fixedly installed in the base, an installation cavity is formed between the two partition plates, guide blocks are fixedly connected to the two sides of the inner wall of one end of the installation cavity, an arc extinguish chamber is connected to the guide blocks in a sliding mode, and the arc extinguish chamber is internally provided with a fuse. A threaded hole is formed in the surface of the inner wall of the other end of the mounting cavity, a fuse is fixedly mounted through the threaded hole, the two sides of the outer wall of the base are rotationally connected with a control base through pin shafts, and the bottom of the control base is fixedly connected with the top of the fuse through a connecting assembly. According to the utility model, the components in the fuse-type disconnecting switch are designed in a modularized structure instead of a traditional structure design mode, so that the possibility that other components are damaged in the dismounting and replacing process can be effectively avoided, the use cost of a user is reduced, and the service life of a product is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of isolating switches, in particular to a fuse type isolating switch. Background Art

[0002] A fuse disconnector is a simple yet effective, manually operated protective device that primarily provides isolation or short-circuit protection in circuits. Disconnectors are characterized by a defined distance between the moving and static contacts when in the open position, a clear disconnection indicator, and the ability to withstand both normal circuit current and abnormal current for a specified period of time when closed.

[0003] However, the internal components of the existing fuse-type disconnectors on the market are easily damaged during use and have a short lifespan. During replacement, the associated components need to be removed together, and other components are easily damaged during the removal process, thereby increasing the cost of using the fuse-type disconnector. Summary of the Invention

[0004] The purpose of the present utility model is to provide a fuse-type disconnector to solve the problem mentioned in the above background art that the internal components of the existing fuse-type disconnector are easily damaged during use and have a short lifespan. During the replacement process, the associated components need to be removed together, and other components are easily damaged during the removal process, thereby increasing the use cost of the fuse-type disconnector.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fuse-type disconnector, comprising a base, partitions are fixedly installed inside the base, and an installation cavity is formed between the two partitions, the installation cavity is located at one end, and guide blocks are fixedly connected on both sides of the inner wall, an arc extinguishing chamber is slidably connected to the guide block, the installation cavity is located at the other end, and a threaded hole is opened on the inner wall surface, and a fuse is fixedly installed through the threaded hole, a control seat is rotatably connected to both sides of the outer wall of the base through a pin shaft, and the bottom of the control seat is fixedly connected to the top of the fuse through a connecting assembly.

[0006] Preferably, a fixing position is provided on the inner wall of the installation cavity between the threaded hole and the guide block.

[0007] Preferably, a fixing seat is fixedly installed at the bottom of the fuse, a fixing block is fixedly connected to the bottom surface of the fixing seat at a relative position to the fixing position, and the fixing block is movably connected in the fixing position, a connecting hole is opened on the surface of the fixing seat at a relative position to the threaded hole, and the connecting hole and the threaded hole are fixedly connected by bolts.

[0008] Preferably, connecting blocks are fixedly connected to both sides of the outer wall of the arc extinguishing chamber, and guide grooves are provided on the outer walls of the connecting blocks, and the guide grooves are slidably connected to the guide blocks.

[0009] Preferably, a clamping block is fixedly connected to the guide surface, and the surface of the clamping block is in contact with the inner wall of the guide groove.

[0010] Beneficial effects

[0011] Compared with the existing technology, the beneficial effects of the present invention are:

[0012] The present invention adopts a modular structural design for the components in the fuse-type disconnector, replacing the traditional structural design, which can effectively avoid the possibility of damage to other components during the removal and replacement process, reduce the user's usage cost, and increase the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the base structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the arc extinguishing chamber structure of the present utility model;

[0017] Figure 5 This is a schematic diagram of the fuse structure of the present utility model.

[0018] 1. Base; 2. Control seat; 3. Partition; 4. Mounting cavity; 5. Guide block; 6. Fixing position; 7. Arc extinguishing chamber; 8. Fuse; 9. Connecting assembly; 41. Threaded hole; 51. Clamping block; 71. Connecting block; 72. Guide groove;

[0019] 81. Fixed seat; 82. Connecting hole; 83. Fixed block. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "upper," "lower," "left," "right," "front," "back," "inner," "outer," "vertical," and "horizontal" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and are therefore not to be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

[0022] like Figure 1-5 It is a structural schematic diagram of a fuse type disconnector in a preferred embodiment of the present invention. In this embodiment, a fuse type disconnector includes a base 1, partitions 3 are fixedly installed in the base 1, and an installation cavity 4 is formed between the two partitions 3. The installation cavity 4 is located at one end, and guide blocks 5 are fixedly connected on both sides of the inner wall. An arc extinguishing chamber 7 is slidably connected to the guide block 5. The installation cavity 4 is located at the other end, and a threaded hole 41 is opened on the inner wall surface, and a fuse 8 is fixedly installed through the threaded hole 41. The control seat 2 is rotatably connected to the outer wall of the base 1 on both sides through a pin shaft, and the bottom of the control seat 2 is fixedly connected to the top of the fuse 8 through a connecting assembly 9; combined with the modular structural design of the components in the fuse type disconnector in the present invention, instead of the traditional structural design method, it can effectively avoid the possibility of damage to other components during the disassembly and replacement process, reduce the user's usage cost, and increase the service life of the product.

[0023] In this embodiment, a fixing portion 6 is provided on the inner wall of the installation cavity 4 between the threaded hole 41 and the guide block 5 .

[0024] In this embodiment, a fixing seat 81 is fixedly installed at the bottom of the fuse 8, and a fixing block 83 is fixedly connected to the bottom surface of the fixing seat 81 at a position relative to the fixing position 6, and is movably connected to the fixing position 6 through the fixing block 83, thereby preventing the fuse 8 from shaking when installed in the installation cavity 4, and a connecting hole 82 is opened on the surface of the fixing seat 81 at a position relative to the threaded hole 41, and a bolt is used between the connecting hole 82 and the threaded hole 41 to achieve a fixed connection between the fuse 8 and the installation cavity 4.

[0025] In this embodiment, connecting blocks 71 are fixedly connected to both sides of the outer wall of the arc extinguishing chamber 7. The outer wall of the connecting block 71 is provided with a guide groove 72, which is slidably connected to the guide block 5. This structural design facilitates the replacement of the arc extinguishing chamber 7.

[0026] In this embodiment, in order to prevent the arc extinguishing chamber 7 from falling off after installation, a clamping block 51 is fixedly connected to the surface of the guide block 5, and the surface of the clamping block 51 contacts the inner wall of the guide groove 72, thereby increasing the friction between the guide groove 72 and the guide block 5, effectively preventing the arc extinguishing chamber 7 from falling off during use.

[0027] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of protection determined by the claims submitted for the present invention.

Claims

1. A fuse-type disconnect switch, comprising a base (1), wherein partitions (3) are fixedly mounted in the base (1), and a mounting cavity (4) is formed between two of the partitions (3), characterized in that: The installation cavity (4) is located at one end, and guide blocks (5) are fixedly connected on both sides of the inner wall. An arc extinguishing chamber (7) is slidably connected to the guide block (5). A threaded hole (41) is opened on the inner wall surface of the installation cavity (4) at the other end, and a fuse (8) is fixedly installed through the threaded hole (41). The control seat (2) is rotatably connected to both sides of the outer wall of the base (1) through a pin shaft, and the bottom of the control seat (2) and the top of the fuse (8) are fixedly connected through a connecting component (9).

2. A fuse-type disconnect switch according to claim 1, characterized in that: A fixing position (6) is provided on the inner wall of the installation cavity (4) between the threaded hole (41) and the guide block (5).

3. The fuse-type disconnect switch according to claim 1, characterized in that: A fixing seat (81) is fixedly installed at the bottom of the fuse (8); a fixing block (83) is fixedly connected to the bottom surface of the fixing seat (81) at a relative position to the fixing position (6), and the fixing block (83) is movably connected to the fixing position (6); a connecting hole (82) is opened on the surface of the fixing seat (81) at a relative position to the threaded hole (41); the connecting hole (82) and the threaded hole (41) are fixedly connected by bolts.

4. The fuse-type disconnect switch according to claim 1, characterized in that: Connecting blocks (71) are fixedly connected to both sides of the outer wall of the arc extinguishing chamber (7), and a guide groove (72) is provided on the outer wall of the connecting block (71), and the guide groove (72) is slidably connected to the guide block (5).

5. The fuse-type disconnect switch according to claim 4, characterized in that: A clamping block (51) is fixedly connected to the surface of the guide block (5), and the surface of the clamping block (51) is in contact with the inner wall of the guide groove (72).

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