Fuse capable of being quickly replaced

Abstract

The utility model discloses a fuse capable of being quickly replaced, which comprises a conducting strip, a fuse link, a clamping piece and a mounting seat arranged in a cabinet body, a connecting conducting strip is welded on the outer side wall of the fuse link, a hard plastic shell is adhered on the outer side wall of the clamping piece, a clamping assembly is arranged outside the hard plastic shell, and the fuse comprises a rotating column, a locking plate, a gear, a spherical bulge, a hard plastic shell and a toothed plate. During use, the rotating column is rotated to enable the pressing plate to ascend, the toothed plate is meshed to enable the gear to drive the locking plate to gradually approach to the hard plastic shell, and the hard plastic shell is clamped through matching of the spherical bulge and the spherical groove in the outer side wall of the hard plastic shell, so that fatigue is avoided. Fatigue of the clamping pieces can be avoided, meanwhile, the circular rotating plate, the rhombic sliding groove, the sliding rod, the matching column and the clamping block are arranged, the circular rotating plate is rotated, the sliding rod transversely slides under matching of the matching column and the rhombic sliding groove in the bottom of the circular rotating plate, the clamping block is clamped in the clamping groove, and the whole device can be rapidly installed.

Description

Technical Field

[0001] The utility model relates to the technical field of fuses, in particular to a quickly replaceable fuse. Background Art

[0002] At present, in daily life, the most commonly used energy source is electricity. In the production and manufacturing process, a large amount of electricity is required to power equipment. During the use of electricity, multiple related devices need to be set up to ensure the safety of electricity use. Among them, fuses are important components in the power supply process. When the current in the circuit exceeds the specified value, the heat generated by the fuse itself causes the fuse to melt and disconnect the circuit. The fuse has a simple structure and is easy to use. It is widely used as a protective device in power systems, various electrical equipment and household appliances.

[0003] Generally, when installing a fuse, the two ends of the fuse are inserted between the clamps of the base. The clamps are supported by annular support rods on both sides, which deform when the fuse is inserted. After the fuse is inserted, the two annular support rods squeeze the clamp toward the middle to clamp the fuse. However, the clips and support rods are both made of metal. After multiple replacements of the fuse, fatigue is likely to occur after deformation, and the clamping of the fuse becomes loose. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to provide a quickly replaceable fuse.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A quickly replaceable fuse comprises a conductive sheet, a fuse body, a clip and a mounting base installed inside a cabinet, the clip being welded to the conductive sheet, the conductive sheet and the clip being fixedly mounted together on the top outer wall of the mounting base, the outer side wall of the clip being fixedly mounted with a hard plastic shell, the outside of the hard plastic shell being provided with a clamping assembly, the clamping assembly comprising a rotating column and a fixing box, the inner wall of the fixing box being rotatably connected with a rotating rod, the outer side wall of the rotating rod being fixedly mounted with a locking plate and a gear, the outer side wall of the locking plate being fixedly mounted with a spherical protrusion, the inner side wall of the spherical protrusion being slidably connected with a pressure plate, the rotating column being rotatably connected to the top outer wall of the pressure plate, and the rotating column being connected to the inner wall of the fixing box by a thread, and the bottom outer wall of the pressure plate being fixedly mounted with a toothed plate.

[0007] As a further solution of the present invention: a connecting guide is fixedly mounted on the outer side wall of the fuse.

[0008] As a further solution of the present invention: the tooth plate is meshed with the gear.

[0009] As a further solution of the present invention: a spherical groove is formed on the outer side wall of the hard plastic shell, and the spherical protrusion cooperates with the spherical groove on the outer side wall of the hard plastic shell.

[0010] As a further solution of the present invention: a square hole is opened on the outer wall of the top of the rotating column.

[0011] As a further solution of the present invention: an insulating frame is fixedly mounted on the outer side wall of the fuse link, and a pull ring is fixedly mounted on the outer side wall of the insulating frame.

[0012] As a further solution of the present invention: a card slot is provided inside the cabinet body, a circular rotating plate is rotatably connected to the inner wall of the mounting seat, a transverse slot is provided on the top of the mounting seat and the circular rotating plate, a card plate is fixedly inserted on the inner wall of the transverse slot, and a hexagonal slot is provided on the outer wall of the top of the circular rotating plate.

[0013] As a further solution of the present invention: a diamond-shaped sliding groove is opened on the outer wall of the bottom of the circular rotating plate, the inner wall of the mounting seat is slidably connected with a sliding rod, the outer wall of the top of the sliding rod is rotatably connected with a matching column, and a card block is fixedly installed on the outer side wall of the other end of the matching column, and the card block cooperates with the slot.

[0014] Compared with the prior art, the present invention provides a quickly replaceable fuse with the following benefits:

[0015] The utility model sets the clamping component as a combination of a rotating column, a locking plate, a gear, a spherical protrusion, a hard plastic shell, and a toothed plate. When in use, the rotating column is rotated to cause the pressure plate to rise, and the toothed plate is engaged so that the gear drives the locking plate to gradually approach the hard plastic shell. The spherical protrusion cooperates with the spherical groove on the outer side wall of the hard plastic shell to clamp the hard plastic shell, thereby avoiding fatigue after the clip is used multiple times to fix the connecting guide.

[0016] The utility model is provided with an insulating frame and a pull ring. When replacing a fuse, a user can hook the hook-shaped object onto the outside of the pull ring and directly pull out the fuse through the insulating frame.

[0017] The utility model is provided with a circular rotating plate, a diamond-shaped sliding groove, a sliding rod, a matching column, a clamping block, a clamping plate, and a transverse groove. Before installing the fuse link, the mounting base is first inserted into the cabinet, the clamping plate in the transverse groove is first pulled out, and then the circular rotating plate is rotated, so that the sliding rod slides horizontally under the cooperation of the matching column and the diamond-shaped sliding groove at the bottom of the circular rotating plate, and the clamping block is clamped in the clamping groove, so that the entire device can be quickly installed.

[0018] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic diagram of the overall structure of a quick-replaceable fuse proposed in the present invention;

[0020] Figure 2 This is a schematic diagram of the explosion structure of a quickly replaceable fuse proposed by the present invention;

[0021] Figure 3 This is a schematic diagram of the full cross-section structure of a fixing box for a quickly replaceable fuse proposed in the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of a mounting base for a quickly replaceable fuse proposed in the present invention;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of a mounting base and a cabinet for a quickly replaceable fuse proposed in the present invention.

[0024] In the figure: 1. Mounting base; 2. Conductive sheet; 3. Cabinet; 4. Fuse body; 5. Insulation frame; 6. Connecting guide; 7. Hard plastic shell; 8. Clip; 9. Pull ring; 10. Rotating column; 11. Fixing box; 12. Spherical protrusion; 13. Locking plate; 14. Square hole; 15. Gear; 16. Rotating rod; 17. Tooth plate; 18. Pressing plate; 19. Circular rotating plate; 20. Horizontal groove; 21. Hexagonal groove; 22. Clamping plate; 23. Matching column; 24. Slide rod; 25. Clamping block; 26. Clamping slot; 27. Diamond slide slot. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0027] Example 1: A quick-replaceable fuse, in order to avoid loosening of the clamp, such as Figure 1-4As shown, it includes a conductive sheet 2, a fuse 4, a clip 8 and a mounting base 1 installed inside the cabinet 3. The outer side wall of the fuse 4 is welded with a connecting guide 6. The clip 8 is welded to the conductive sheet 2. The conductive sheet 2 and the clip 8 are welded together to the outer wall of the top of the mounting base 1. The outer side wall of the clip 8 is bonded with a hard plastic shell 7. The outer side wall of the hard plastic shell 7 is provided with a spherical groove. The outside of the hard plastic shell 7 is provided with a clamping assembly. The clamping assembly includes a rotating column 10 and a fixing box 11. The inner wall of the fixing box 11 is rotated to connect A rotating rod 16 is connected, and a locking plate 13 and a gear 15 are welded to the outer side wall of the rotating rod 16. A spherical protrusion 12 is welded to the outer side wall of the locking plate 13, and the spherical protrusion 12 cooperates with the spherical groove on the outer side wall of the hard plastic shell 7. A pressure plate 18 is slidably connected to the inner side wall of the spherical protrusion 12. The rotating column 10 is rotatably connected to the top outer wall of the pressure plate 18, and the rotating column 10 is connected to the inner wall of the fixed box 11 by a thread. A tooth plate 17 is welded to the bottom outer wall of the pressure plate 18, and the tooth plate 17 is meshed with the gear 15;

[0028] During use, the user can place the connecting guides 6 at both ends of the fuse 4 between the clips 8 for clamping, then place the fixing box 11 on the top of the hard plastic shell 7, and rotate the rotating column 10 to make the pressure plate 18 rise. The toothed plate 17 at the bottom of the pressure plate 18 engages so that the gear 15 drives the locking plate 13 to gradually approach the hard plastic shell 7. The spherical protrusion 12 on the outside of the locking plate 13 cooperates with the spherical groove on the outer side wall of the hard plastic shell 7 to achieve clamping of the hard plastic shell 7, thereby avoiding fatigue caused by repeated use of the clips 8 to fix the connecting guides 6. When the fuse 4 needs to be replaced, the rotating column 10 is directly reversed to make the locking plate 13 disengage from the clamping of the hard plastic shell 7, and the connecting guides 6 at both ends of the fuse 4 can be directly pulled out.

[0029] A square hole 14 is formed on the top outer wall of the rotating column 10;

[0030] During use, the user can insert a flat screwdriver into the square hole 14 and quickly rotate the rotating column 10 for easy use.

[0031] The outer side wall of the fuse 4 is bonded with an insulating frame 5, and the outer side wall of the insulating frame 5 is bonded with a pull ring 9;

[0032] When replacing the fuse 4 , the user can hook the hook onto the outside of the pull ring 9 and directly pull out the fuse 4 through the insulating frame 5 .

[0033] Working principle: When in use, the user can place the connecting guides 6 at both ends of the fuse 4 between the clips 8 for clamping, and then place the fixing box 11 on the top of the hard plastic shell 7. The user can insert a flat-angle screwdriver into the square hole 14 and quickly rotate the rotating column 10 to make the pressure plate 18 rise. The toothed plate 17 at the bottom of the pressure plate 18 engages so that the gear 15 drives the locking plate 13 to gradually approach the hard plastic shell 7. The spherical protrusion 12 on the outside of the locking plate 13 cooperates with the spherical groove on the outer side wall of the hard plastic shell 7 to achieve clamping of the hard plastic shell 7, avoiding fatigue after repeated use of the clips 8 to fix the connecting guides 6. When the fuse 4 needs to be replaced, directly reverse the rotating column 10 to make the locking plate 13 disengage from the clamping of the hard plastic shell 7, hook it to the outside of the pull ring 9 through the hook, and directly pull out the fuse 4 through the insulating frame 5.

[0034] Example 2: A quick-replaceable fuse, such as Figure 1-5 As shown, in order to quickly install the mounting base 1; this embodiment makes the following supplements on the basis of Example 1: a card slot 26 is provided inside the cabinet 3, and a circular rotating plate 19 is rotatably connected to the inner wall of the mounting base 1. A transverse groove 20 is provided on the top of the mounting base 1 and the circular rotating plate 19. A card plate 22 is fixedly inserted into the inner wall of the transverse groove 20, and a hexagonal groove 21 is provided on the top outer wall of the circular rotating plate 19. A diamond-shaped slide groove 27 is provided on the bottom outer wall of the circular rotating plate 19. A slide rod 24 is slidably connected to the inner wall of the mounting base 1, and a matching column 23 is rotatably connected to the top outer wall of the slide rod 24. A card block 25 is welded to the outer side wall of the other end of the matching column 23, and the card block 25 cooperates with the card slot 26;

[0035] Working principle: Before installing the fuse 4, first insert the mounting base 1 into the cabinet 3, first pull out the card plate 22 in the horizontal groove 20, then insert the hexagonal screwdriver into the hexagonal slot 21 and rotate the circular rotating plate 19, so that the slide rod 24 slides horizontally under the cooperation of the matching column 23 and the diamond slide groove 27 at the bottom of the circular rotating plate 19, and the block 25 at the other end of the slide rod 24 is engaged with the card groove 26 opened inside the cabinet 3, then insert the card plate 22 into the horizontal groove 20 at the top of the circular rotating plate 19 and the mounting base 1 to fix the circular rotating plate 19, and then install the fuse 4. By pressing the card plate 22 through the bottom of the fuse 4, the entire device can be quickly installed. When the mounting base 1 as a whole needs to be replaced, directly pull out the card plate 22 and reverse the circular rotating plate 19 to remove it.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A quickly replaceable fuse, comprising a conductive piece (2), a fuse body (4), a clip (8), and a mounting base (1) mounted inside a cabinet (3), characterized in that: The clip (8) is welded to the conductive sheet (2), and the conductive sheet (2) and the clip (8) are fixedly mounted on the top outer wall of the mounting seat (1). The outer side wall of the clip (8) is fixedly mounted with a hard plastic shell (7), and the outside of the hard plastic shell (7) is provided with a clamping assembly, and the clamping assembly includes a rotating column (10) and a fixing box (11). The inner wall of the fixing box (11) is rotatably connected to a rotating rod (16), and the outer side wall of the rotating rod (16) is fixedly mounted with a locking plate (13) and a gear (15). The outer side wall of the locking plate (13) is fixedly mounted with a spherical protrusion (12), and the inner side wall of the spherical protrusion (12) is slidably connected with a pressure plate (18). The rotating column (10) is rotatably connected to the top outer wall of the pressure plate (18), and the rotating column (10) is connected to the inner wall of the fixing box (11) by a thread, and the bottom outer wall of the pressure plate (18) is fixedly mounted with a tooth plate (17).

2. A quick-replaceable fuse according to claim 1, characterized in that: A connecting guide (6) is fixedly mounted on the outer side wall of the fuse (4).

3. The quick-replaceable fuse according to claim 1, characterized in that: The tooth plate (17) is meshed with the gear (15).

4. A quick-replaceable fuse according to claim 3, characterized in that: A spherical groove is provided on the outer side wall of the hard plastic shell (7), and the spherical protrusion (12) cooperates with the spherical groove on the outer side wall of the hard plastic shell (7).

5. The quick-replaceable fuse according to claim 4, characterized in that: A square hole (14) is provided on the outer wall of the top of the rotating column (10).

6. The quick-replaceable fuse according to claim 1, characterized in that: An insulating frame (5) is fixedly mounted on the outer side wall of the fuse link (4), and a pull ring (9) is fixedly mounted on the outer side wall of the insulating frame (5).

7. The quick-replaceable fuse according to claim 1, characterized in that: A card slot (26) is provided inside the cabinet (3), a circular rotating plate (19) is rotatably connected to the inner wall of the mounting seat (1), a transverse slot (20) is provided on the top of both the mounting seat (1) and the circular rotating plate (19), a card plate (22) is fixedly inserted into the inner wall of the transverse slot (20), and a hexagonal slot (21) is provided on the outer wall of the top of the circular rotating plate (19).

8. The quick-replaceable fuse according to claim 7, characterized in that: A diamond-shaped sliding groove (27) is provided on the bottom outer wall of the circular rotating plate (19); a sliding rod (24) is slidably connected to the inner wall of the mounting seat (1); a matching column (23) is rotatably connected to the top outer wall of the sliding rod (24); a clamping block (25) is fixedly installed on the outer side wall of the other end of the matching column (23); and the clamping block (25) is matched with the clamping groove (26).

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