Isolation type fuse

Abstract

The utility model provides an isolation type fuse, which relates to the technical field of fuses and comprises a fuse main body, a fuse isolation assembly is arranged on the outer side of the fuse main body, a protective outer cover is connected with a clamping groove in the inner side of a limiting sliding groove, a rotating bolt is connected with the lower side of the protective outer cover, and the rotating bolt is connected with the fuse isolation assembly. A bolt head is welded to the tail end of the rotating bolt, and a driven bearing is installed on the outer side of the bolt head. A worker can observe the state of the fusing column through the protective glass plate to ensure the operation safety, and when the protective outer cover is dismounted, the protective outer cover can slowly rise due to the twisting force of the threads along with the rotation of the rotating bolt, so that the protective outer cover can be effectively disconnected with the fusing column, the isolation effect of the fusing column in the operation process is ensured, and the safety of the operation is ensured. Meanwhile, potential safety hazards caused by misoperation are avoided, a worker drives the rotating bolt to rotate through the bolt head through equipment such as a screwdriver, and it is guaranteed that the bolt head cannot dislocate through the driven bearing.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuse technology field especially relates to an isolated fuse. BACKGROUND

[0002] The fuse is a simple and effective circuit protection device, it mainly comprises the fuse and the insulating tube (seat) of installing the fuse and so on, when the overloading or short circuit fault etc.

[0003] Through the retrieval, the announcement number "CN222483276U" text mentions "the utility model discloses an isolated fuse, including isolated fuse body, the bottom of isolated fuse body The bottom of the bottom is provided with the mounting seat, both sides of the bottom of the isolated fuse body are fixedly connected with the fixed strip, the top of the mounting seat both sides are all set up with the strip shape groove matched with the fixed strip", when using, the utility model is through the gear, the rack, the lifting rod, the collet and the fixed strip cooperation, the lifting rod lifts and drives the gear rotation, the gear controls the rack transverse movement of both ends, the rack moves and drives the collet to exit from the card slot, then right hand takes down isolated fuse body from the front of mounting seat, so when disassembling isolated fuse body, it is not necessary to use the tool and bolt, also need not to disassemble the whole equipment, and the disassembly mode is more efficient.

[0004] However, the existing fuse needs manual replacement of fuse after fusing, and the existing fuse lacks effective isolation measures, so the staff may contact the live part when checking and maintaining the fuse, which has the risk of electric shock.

[0005] Therefore, we provide an isolated fuse to solve the above problems. UTILITY MODEL CONTENTS

[0006] In order to make up for the above shortcomings, the utility model provides an isolated fuse.

[0007] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0008] An isolated fuse includes a fuse body, the inner side center of the fuse body is provided with a fuse connecting assembly, the outer side of the fuse body is provided with a fuse isolation assembly, the fuse isolation assembly includes a limiting sliding groove arranged at the left and right ends of the inner side of the fuse body, the inner side clamping groove of the limiting sliding groove is connected with a protective outer cover, the lower side of the protective outer cover is connected with a rotating bolt, the end of the rotating bolt is welded with a bolt head, and the outer side of the bolt head is provided with a driven bearing.

[0009] As a further description of the above technical solution:

[0010] The fuse connecting assembly includes a fuse column groove arranged at the center position of the inner side of the fuse body, and the inner side bottom end of the fuse column groove is provided with a current connecting piece.

[0011] As a further description of the above technical solution:

[0012] The left and right sides of the fuse column groove are connected with rubber protective pads, the inner side of the rubber protective pad is provided with a fuse melting column, and the rubber protective pad is a semicircular structure.

[0013] As a further description of the above technical solution:

[0014] The front side of the protective outer cover is connected with a protective glass plate, and the protective glass plate is made of tempered glass material.

[0015] As a further description of the above technical solution:

[0016] The rotating bolt is located at the left center position of the limiting sliding groove, and the rotating bolt and the inner side thread groove of the protective outer cover are threadedly connected.

[0017] As a further description of the above technical solution:

[0018] The inner wall of the driven bearing and the bolt head are welded, the outer wall of the driven bearing and the fuse body are welded, and the bolt head and the rotating bolt are fixed and rotated through the driven bearing.

[0019] As a further description of the above technical solution:

[0020] The top end of the protective outer cover is provided with a current inductor, and the upper side of the current inductor is provided with a state display lamp.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] 1. The utility model discloses a fuse connecting assembly, when needing to use, the upper and lower ends of the fuse column are connected through the U-shaped current connecting sheet, the U-shaped current connecting sheet can make the connection effect of the fuse column better through the elasticity of its own shape, and the current connecting sheet will produce thermalization reaction when subsequent fuse reaction occurs, so that the connecting point of the fuse column is separated from the current connecting sheet of the upper end, ensuring the safety of the circuit, and the rubber protection pad wraps the fuse column, providing a buffering effect and ensuring the stability of the fuse column during use.

[0023] 2. The utility model discloses a fuse isolation assembly, the staff can observe the state of the fuse column through the protective glass plate, ensures the safe operation, when disassembling the protective outer cover, with the rotation of the rotating bolt, the protective outer cover will slowly rise due to the twisting force of the screw thread, so that the fuse column can be effectively isolated and disconnected, ensuring the isolation effect of the fuse column during operation, and avoiding the safety hidden danger caused by misoperation, and the staff rotates the rotating bolt through the screwdriver and the like through the bolt head, and the driven bearing ensures that the bolt head does not dislocate, and also ensures the free rotation of the bolt head. DRAWINGS

[0024] Figure 1 It is the overall appearance structure schematic diagram of the utility model;

[0025] Figure 2 It is the overall split structure schematic diagram of the utility model;

[0026] Figure 3 It is the internal structure schematic diagram of the utility model protective outer cover;

[0027] Figure 4 It is the internal structure schematic diagram of the fuse body of the utility model.

[0028] Marked number in drawing: 1, fuse body;2, fuse connecting assembly;201, column groove;202, current connecting sheet;203, rubber protection pad;204, fuse column;3, fuse isolation assembly;301, limit sliding groove;302, protective outer cover;303, protective glass plate;304, rotating bolt;305, bolt head;306, driven bearing;4, current inductor;5, state display lamp. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0030] Please refer to Figures 1-4 As shown in the technical scheme, the utility model provides an isolation type fuse, including fuse main body 1, the inside center of fuse main body 1 is provided with fuse connecting assembly 2, the outside of fuse main body 1 is provided with fuse isolation assembly 3, fuse isolation assembly 3 includes the limit sliding slot 301 of being set in the left and right two ends of fuse main body 1 inside, the inside clamping groove of limit sliding slot 301 is connected with protective outer cover 302, the downside of protective outer cover 302 is connected with rotating bolt 304, the tail end of rotating bolt 304 is welded with bolt head 305, the outside of bolt head 305 is installed with driven bearing 306.

[0031] Further, the fuse connecting assembly 2 includes a fuse column groove 201 arranged at the center of the inner side of the fuse body 1, and a current connecting piece 202 installed at the inner bottom end of the fuse column groove 201. The current connecting piece 202 has a U-shaped structure. When in use, the upper and lower ends of the fuse column 204 are connected through the U-shaped current connecting piece 202. The U-shaped current connecting piece 202 can make the connection of the fuse column 204 better through its shape elasticity, and after the subsequent fuse reaction, the current connecting piece 202 will produce thermalization reaction, so that the connection point of the fuse column 204 is separated from the upper current connecting piece 202, ensuring the safety of the circuit.

[0032] Further, the left and right sides of the fuse column groove 201 are connected with rubber protective pads 203, and the inner side of the rubber protective pad 203 is provided with a fuse column 204. The rubber protective pad 203 has a semicircular structure. When in use, the rubber protective pad 203 wraps the fuse column 204, providing a buffering effect and ensuring the stability of the fuse column 204 during use.

[0033] Further, the front side of the protective outer cover 302 is connected with a protective glass plate 303, which is made of tempered glass. When in use, the staff can observe the state of the fuse column 204 through the protective glass plate 303 to ensure the safety of operation.

[0034] Further, the rotating bolt 304 is located at the left center of the limit sliding slot 301, and the rotating bolt 304 is screw-connected with the inner thread groove of the protective outer cover 302. When in use, with the rotation of the rotating bolt 304, the protective outer cover 302 will slowly rise due to the twisting force of the thread, which can effectively disconnect the isolation fuse column 204, ensure the isolation effect of the fuse column 204 during operation, and avoid safety hazards caused by misoperation.

[0035] Further, the inner wall of the driven bearing 306 is welded with the bolt head 305, the outer wall of the driven bearing 306 is welded with the fuse body 1, and the bolt head 305 and the rotating bolt 304 are fixed and rotated through the driven bearing 306, when needing to use, the staff drives the rotating bolt 304 to rotate through the bolt head 305 through a screwdriver and the like equipment, and the driven bearing 306 ensures that the bolt head 305 cannot be dislocated and can ensure the free rotation of the bolt head 305.

[0036] Further, the top end of the protective cover 302 is provided with a current sensor 4, and the upper side of the current sensor 4 is provided with a state display lamp 5, when needing to use, the current sensor 4 monitors the current change in real time, and the current voltage whether within a reasonable threshold is prompted through the display color of the state display lamp 5.

[0037] Working principle: when needing to use, first, the circuit wire is connected with the connecting groove at the top end of the protective cover 302, after being connected, the fuse column 204 is clamped into the rubber protection pad 203 in the fuse column groove 201, the bottom contacts the current connecting piece 202, then the protective cover 302 is clamped into the limiting sliding groove 301, and the rotating bolt 304 is aligned with the inner thread groove of the protective cover 302, at this time, the staff rotates the bolt head 305 through a screwdriver, drives the protective cover 302 to downward, until the protective cover 302 is completely buckled to the outside of the fuse body 1, and the rotating bolt head 305 is supported and connected by the driven bearing 306 in the rotating process, finally, the circuit wire is powered on, at this time, the current sensor 4 starts to work, the state display lamp 5 is bright green, indicating that the voltage is normal, and the fuse column 204 is in a safe state, so that the use process of the isolation type fuse is completed.

[0038] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An isolating fuse, comprising a fuse body (1), characterized in that: A fuse connection assembly (2) is provided at the center of the inner side of the fuse body (1), and a fuse isolation assembly (3) is provided on the outer side of the fuse body (1). The fuse isolation assembly (3) includes a limiting slide groove (301) at the left and right ends of the inner side of the fuse body (1). A protective cover (302) is connected to the inner side of the limiting slide groove (301). A rotating bolt (304) is connected to the lower side of the protective cover (302). A bolt head (305) is welded to the end of the rotating bolt (304). A driven bearing (306) is installed on the outer side of the bolt head (305).

2. The isolating fuse according to claim 1, characterized in that, The fuse connection assembly (2) includes a fusion groove (201) located at the center of the inner side of the fuse body (1). A current connecting piece (202) is installed at the bottom inner side of the fusion groove (201). The current connecting piece (202) has a U-shaped structure.

3. The isolating fuse according to claim 2, characterized in that, Rubber protective pads (203) are bonded to both sides of the fusion column groove (201). A fusion column (204) is provided on the inner side of the rubber protective pad (203). The rubber protective pad (203) has a semi-circular structure.

4. The isolating fuse according to claim 1, characterized in that, The protective cover (302) is bonded to the front side with a protective glass plate (303), which is made of tempered glass.

5. The isolating fuse according to claim 1, characterized in that, The rotating bolt (304) is located at the center of the left side of the limiting slide groove (301), and the rotating bolt (304) is threadedly connected to the inner threaded groove of the protective cover (302).

6. The isolating fuse according to claim 5, characterized in that, The inner wall of the driven bearing (306) is welded to the bolt head (305), and the outer wall of the driven bearing (306) is welded to the fuse body (1). The bolt head (305) and the rotating bolt (304) rotate in a fixed position through the driven bearing (306).

7. The isolating fuse according to claim 1, characterized in that, A current sensor (4) is installed on the top of the protective cover (302), and a status indicator light (5) is provided on the upper side of the current sensor (4).

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