Fuse

Abstract

The utility model relates to the technical field of electrical equipment, in particular to a fuse, which comprises a fuse main body, the bottom of the fuse main body is fixedly connected with a base, the inside of the fuse main body is fixedly communicated with a fuse tube, the outer wall of the fuse tube is fixedly connected with a spring, the top of the spring is fixedly connected with a movable block, and the movable block is fixedly connected with the base. The outer wall of the movable block is in threaded connection with a first nut, the interior of the fuse tube is fixedly connected with a fuse body, and the top of the fuse tube is movably connected with a metal piece. According to the fuse, the spring is installed, the metal piece on the top of the fuse tube is unscrewed, one side of the fuse body is wound on the installation part of the first nut by extruding the spring, the first nut is fixed, meanwhile, the metal piece is fixed to the top of the fuse tube, when the spring is released, the fuse body in the fuse tube is fractured, and the fuse carrying tube pops up, so that the fuse tube is fixed. Therefore, the fuse can be conveniently replaced and overhauled by a worker in time, and the practicability of the fuse is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, and particularly relates to a fuse. Background Art

[0002] A fuse is a simple and effective protective electrical appliance for manual operation. In the power system, fuses are used for the switching on and off, short-circuit and overload protection of the power system. In the action process of the existing jet fuses, due to unreasonable structural design, problems such as jamming and dislocation of components such as springs are likely to occur, resulting in the fuse being unable to pop out smoothly or having unstable operation. In addition, the matching accuracy requirements between multiple components are high, and the installation difficulty is large, which affects the reliability and production efficiency of the product. Content of the Utility Model

[0003] The purpose of the utility model is to provide a fuse to solve the problems existing in the existing fuses in terms of action reliability, stability and structural compactness, improve the performance of the fuse, and ensure the reliable and safe execution of the fusing function. To achieve the above purpose, the utility model provides the following technical solution: A fuse, including a fuse main body, the bottom of the fuse main body is fixedly connected with a base, the inside of the fuse main body is fixedly communicated with a fuse tube, the outer wall of the fuse tube is fixedly connected with a spring, the top of the spring is fixedly connected with a movable block, the outer wall of the movable block is threadedly connected with a first nut, the inside of the fuse tube is fixedly connected with a fuse main body, the top of the fuse tube is movably connected with a metal part. By installing a spring, one side of the fuse main body is wound around the installation part of the first nut to fix the first nut, and at the same time, the metal part is fixed on the top of the fuse tube. When the spring is released, the fuse main body inside the fuse tube breaks, the fuse carrier tube pops out, and the circuit is disconnected, which is convenient for the staff to replace and repair it in time, and improves the practicability of the fuse.

[0004] Further preferably, the top of the fuse main body is fixedly connected with an upper contact ring, the top of the upper contact ring is fixedly communicated with an inlet wire tube, one side of the fuse main body is fixedly connected with a connecting part, one side of the connecting part is fixedly connected with a lower contact ring, the side of the lower contact ring is fixedly communicated with an outlet wire tube, and a connecting component is arranged outside the fuse main body. By installing the inlet wire tube and the outlet wire tube, it is convenient for the wires to be connected and used through the inlet wire tube and the outlet wire tube. At the same time, the sealing connection is carried out through the contact ring, so that the device can have sealing performance during use.

[0005] Further preferably, the connection component includes a movable ring, the movable ring is fixedly connected to the outside of the fuse body, holes are formed on the surface of the movable ring, a bolt is threadedly connected inside the holes, a second nut is threadedly connected to one side of the bolt, and a connection block is fixedly connected to one side of the movable ring. By installing the connection component, the switch can be fixedly connected through this component. The movable ring is fixed on the outer wall of the fuse body, and it is fixed through the cooperation of the bolt and the second nut. At the same time, the movable ring is fixed to the external device through the connection block to fix the device, thereby improving the convenience of the device in use.

[0006] Further preferably, an opening is formed at the bottom of the base, an operating rod is fixedly connected inside the opening, a handle is arranged on the outer wall of the operating rod, a fuse carrier tube is arranged inside the operating rod, and a connecting ring is fixedly connected to the top of the fuse carrier tube. By installing the handle, the operating rod can be connected and disassembled by rotating the handle. At the same time, by placing the fuse carrier tube inside the operating rod, the movement track of the spring can be effectively restricted, so that the spring moves linearly inside the sleeve, avoiding the skew and jamming of the spring.

[0007] Further preferably, an arc extinguishing tube is fixedly communicated with the top of the connecting ring, and the connecting ring is fixedly connected to the lower contact ring. By installing the arc extinguishing tube, the arc extinguishing tube can form a close connection with the connecting ring and the lower contact ring, improving the compactness and installation convenience of the product.

[0008] Further preferably, a concentric cylinder is fixedly connected to the top of the arc extinguishing tube, and the top of the concentric cylinder is fixedly connected to the bottom of the upper contact ring. By installing the concentric cylinder, it can be connected to the bottom of the arc extinguishing tube and the bottom of the upper contact ring to ensure coaxiality, reduce friction, and enable the fuse carrier tube to maintain consistency during operation.

[0009] Compared with the prior art, the beneficial effects of the present utility model are:

[0010] In the present utility model, by installing a spring, one side of the fuse body is wound around the installation part of the first nut to fix the first nut. At the same time, the metal part is fixed to the top of the fuse tube. When the spring is released, the fuse body inside the fuse tube breaks, the fuse carrier tube pops out, and the circuit is disconnected, facilitating the staff to replace and repair it in time, improving the practicability of the fuse.

[0011] In the present utility model, by installing a handle, the operating rod can be connected and disassembled by rotating the handle. At the same time, by placing the fuse carrier tube inside the operating rod, the movement track of the spring can be effectively restricted, so that the spring moves linearly inside the sleeve, avoiding the skew and jamming of the spring.

[0012] In the present utility model, by installing a connection component, the switch can be fixedly connected through this component, fixed on the outer wall of the fuse main body through a movable ring, and fixed by the cooperation of a bolt and a nut. At the same time, the movable ring is fixed on an external device through a connection block to fix the device, thereby improving the convenience of the device in use. Brief Description of the Drawings

[0013] Figure 1 Schematic diagram of the three-dimensional structure of the present utility model Figure 1 ;

[0014] Figure 2 Schematic diagram of the three-dimensional structure of the present utility model Figure 2 ;

[0015] Figure 3 Schematic cross-sectional structure diagram of the present utility model;

[0016] Figure 4 Schematic diagram of the partial three-dimensional structure of the present utility model Figure 1 ;

[0017] Figure 5 Schematic diagram of the partial three-dimensional structure of the present utility model Figure 2 ;

[0018] Figure 6 Schematic top view structure diagram of the present utility model.

[0019] In the figure: 1. Fuse main body; 2. Base; 3. Fuse tube; 4. Spring; 5. Movable block; 6. First nut; 7. Fuse main body; 8. Metal part; 9. Upper contact ring; 10. Inlet pipe; 11. Connecting piece; 12. Lower contact ring; 13. Outlet pipe; 14. Connection component; 15. Opening; 16. Operating rod; 17. Handle; 18. Carrier fuse tube; 19. Connecting ring; 20. Arc extinguishing tube; 21. Concentric cylinder; 1401. Movable ring; 1402. Hole; 1403. Bolt; 1404. Second nut; 1405. Connection block. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work shall fall within the protection scope of the present utility model.

[0021] Please refer to Figure 1 - Figure 5, the present utility model provides a technical solution: a fuse, which includes a fuse main body 1. A base 2 is fixedly connected to the bottom of the fuse main body 1. A fuse tube 3 is fixedly communicated inside the fuse main body 1. A spring 4 is fixedly connected to the outer wall of the fuse tube 3. A movable block 5 is fixedly connected to the top of the spring 4. A first nut 6 is threadedly connected to the outer wall of the movable block 5. A fuse main body 7 is fixedly connected inside the fuse tube 3. A metal part 8 is movably connected to the top of the fuse tube 3. When in use, unscrew the metal part 8 at the top of the fuse tube 3, squeeze the spring 4, wind one side of the fuse main body 7 around the installation part of the first nut 6, place the fuse main body 7 inside the fuse tube 3, fix the first nut 6, and at the same time fix the metal part 8 at the top of the fuse tube 3. When the spring 4 is released and no longer under pressure, it indicates that the fuse main body 7 inside the fuse tube 3 is broken, the fuse carrier tube 18 pops out, the circuit is disconnected, and the fuse main body 7 needs to be replaced.

[0022] In this embodiment, as Figure 1 , Figure 2 and Figure 3 shown, an upper contact ring 9 is fixedly connected to the top of the fuse main body 1. An inlet wire tube 10 is fixedly communicated with the top of the upper contact ring 9. A connecting piece 11 is fixedly connected to one side of the fuse main body 1. A lower contact ring 12 is fixedly connected to one side of the connecting piece 11. An outlet wire tube 13 is fixedly communicated with one side of the lower contact ring 12. A connection assembly 14 is arranged outside the fuse main body 1. When in use, the wire is connected through the inlet wire tube 10 and the outlet wire tube 13, and at the same time, the fuse main body 1 is hermetically connected through the upper contact ring 9 and the lower contact ring 12.

[0023] In this embodiment, as Figure 1 , Figure 2 and Figure 3 shown, the connection assembly 14 includes a movable ring 1401. The movable ring 1401 is fixedly connected to the outside of the fuse main body 1. A hole 1402 is formed on the surface of the movable ring 1401. A bolt 1403 is threadedly connected inside the hole 1402. A second nut 1404 is threadedly connected to one side of the bolt 1403. A connection block 1405 is fixedly connected to one side of the movable ring 1401. By installing the connection assembly 14, when in use, the movable ring 1401 is fixed on the outer wall of the fuse main body 1, the movable ring 1401 is fixed through the cooperation of the bolt 1403 and the second nut 1404, and at the same time, the movable ring 1401 is fixed to an external device through the connection block 1405 to fix the fuse main body 1.

[0024] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, an opening 15 is provided at the bottom of the base 2. An operating rod 16 is fixedly connected inside the opening 15. A handle 17 is provided on the outer wall of the operating rod 16. A melting tube 18 is provided inside the operating rod 16. A connecting ring 19 is fixedly connected to the top of the melting tube 18. During use, the melting tube 18 is installed inside the operating rod 16. The operating rod 16 can be connected and detached through the handle 17. At the same time, placing the melting tube 18 inside the operating rod 16 can effectively limit the movement track of the spring 4, making the spring 4 move linearly inside the sleeve and avoiding the skew and jamming of the spring 4.

[0025] In this embodiment, as Figure 3 shown, a arc extinguishing tube 20 is fixedly communicated with the top of the connecting ring 19. The connecting ring 19 is fixedly connected to the lower contact ring 12. During use, the arc extinguishing tube 20 can form a tight connection with the connecting ring 19 and the lower contact ring 12, so that it can maintain tightness during connection.

[0026] In this embodiment, as Figure 3 shown, a concentric cylinder 21 is fixedly connected to the top of the arc extinguishing tube 20. The top of the concentric cylinder 21 is fixedly connected to the bottom of the upper contact ring 9. By installing the concentric cylinder 21, during use, it can be connected to the bottom of the arc extinguishing tube 20 and the bottom of the upper contact ring 9, ensuring coaxiality, reducing friction, and enabling the melting tube 18 to maintain consistency during operation.

[0027] The usage method and advantages of the present utility model: When this fuse is in use, the working process is as follows:

[0028] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 shown, when in use, an arc extinguishing tube 20 and a concentric cylinder 21 are fixedly connected inside the fuse body 1, enabling it to form a tight connection with the connecting ring 19 and the lower contact ring 12 and connecting the bottom of the arc extinguishing tube 20 and the bottom of the upper contact ring 9, ensuring the coaxiality inside the switch, reducing friction, and enabling the melting tube 18 to maintain consistency during operation. When installing the fuse main body 7, unscrew the metal part 8 at the top of the fuse tube 3. By squeezing the spring 4, wind one side of the fuse main body 7 around the installation part of the nut 6. Place the fuse main body 7 inside the fuse tube 3 and fix the nut 6. At the same time, fix the metal part 8 on the top of the fuse tube 3. When the spring 4 is released and no longer under pressure, it means that the fuse main body 7 inside the fuse tube 3 is broken, the melting tube 18 pops out, and the circuit is disconnected. It is necessary to replace the fuse main body 7. At the same time, placing the melting tube 18 inside the operating rod 16 can effectively limit the movement track of the spring 4, making the spring 4 move linearly inside the sleeve and avoiding the skew and jamming of the spring 4.

[0029] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present utility model, and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fuse, comprising a fuse body (1), characterized in that: The bottom of the fuse body (1) is fixedly connected to a base (2). Inside the fuse body (1), there is a fuse tube (3) fixedly communicated. The outer wall of the fuse tube (3) is fixedly connected to a spring (4). The top of the spring (4) is fixedly connected to a movable block (5). The outer wall of the movable block (5) is threadedly connected to a first nut (6). Inside the fuse tube (3), there is a fuse body (7) fixedly connected. The top of the fuse tube (3) is movably connected to a metal part (8).

2. The fuse according to claim 1, characterized in that: The top of the fuse body (1) is fixedly connected to an upper contact ring (9). The top of the upper contact ring (9) is fixedly communicated with an inlet pipe (10). One side of the fuse body (1) is fixedly connected to a connecting piece (11). One side of the connecting piece (11) is fixedly connected to a lower contact ring (12). One side of the lower contact ring (12) is fixedly communicated with an outlet pipe (13). A connecting component (14) is arranged outside the fuse body (1).

3. The fuse according to claim 2, characterized in that: The connecting component (14) includes a movable ring (1401). The movable ring (1401) is fixedly connected to the outside of the fuse body (1). A hole (1402) is formed on the surface of the movable ring (1401). A bolt (1403) is threadedly connected inside the hole (1402). One side of the bolt (1403) is threadedly connected to a second nut (1404). One side of the movable ring (1401) is fixedly connected to a connecting block (1405).

4. A fuse according to claim 1, characterized in that: An opening (15) is formed at the bottom of the base (2). An operating rod (16) is fixedly connected inside the opening (15). A handle (17) is arranged on the outer wall of the operating rod (16). A fuse carrier tube (18) is arranged inside the operating rod (16). The top of the fuse carrier tube (18) is fixedly connected to an adapter ring (19).

5. A fuse according to claim 4, characterized in that: The top of the adapter ring (19) is fixedly communicated with an arc extinguishing tube (20). The adapter ring (19) is fixedly connected to the lower contact ring (12).

6. A fuse according to claim 5, characterized in that: The top of the arc extinguishing tube (20) is fixedly connected to a concentric cylinder (21). The top of the concentric cylinder (21) is fixedly connected to the bottom of the upper contact ring (9).

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