Fuse with easy-to-replace melt

Abstract

The utility model discloses a fuse with a fuse body easy to replace, which relates to the field of fuses and comprises a device body, an inner cavity used for accommodating the fuse body is arranged in the device body, and the upper surface and the lower surface of the inner cavity are respectively provided with contacts electrically connected with the fuse body. According to the utility model, through the U-shaped sleeves which are connected in a sliding manner and the I-shaped pieces which are connected in a rotating manner, a user can easily take out the fuse from the fuse and replace the fuse with a new fuse, the whole fuse or complex internal components do not need to be disassembled, and the fuse can be conveniently taken out and replaced. According to the design, the maintenance time is greatly shortened, the working efficiency is improved, the steps of taking and installing the fuse are simple, and the fuse is reserved for standby application, so that the fuse is convenient to maintain in time, the downtime caused by the fault of the fuse is greatly shortened, and the production efficiency and continuity are improved.

Description

Technical Field

[0001] The utility model relates to the field of fuses, in particular to a fuse with an easily replaceable fuse element. Background Art

[0002] In the power system, fuses are an important protective element and are widely used in various circuits to prevent equipment damage and fire accidents caused by current overload or short circuit. Existing fuses are usually not designed and manufactured with built-in spare fuses. When the fuse is blown due to current overload, the user must find and install a new fuse to replace it. This design not only increases the user's maintenance cost, but also prolongs the troubleshooting time and affects the normal operation of the circuit system. Moreover, due to the lack of spare fuses, the user needs to disassemble some or all components of the fuse when replacing the fuse, and then install a new fuse and reassemble the fuse. This process is often cumbersome and requires the user to have certain professional skills and tools, which increases the complexity and difficulty of the operation. Utility Model Content

[0003] The utility model aims to provide a fuse with an easy-to-replace fuse element, and solves the following technical problems: how to simplify the fuse element replacement process, and how to provide spare fuse elements to improve system reliability.

[0004] In order to solve the problems existing in the prior art, the technical solution adopted by the utility model is as follows:

[0005] A fuse with an easily replaceable fuse element comprises a fuse body, an inner cavity for accommodating the fuse element is provided inside the fuse body, and contacts electrically connected to the fuse element are respectively provided on the upper surface and the lower surface of the inner cavity;

[0006] A U-shaped sleeve is slidably connected to the inner cavity of the device body, and an I-shaped piece is rotatably connected between the U-shaped sleeves, and a clamping rod is equidistantly and symmetrically fixedly connected to the inner part of the I-shaped piece;

[0007] Fuse: fuses are arranged on both sides of the I-shaped piece, and the fuses are clamped between the clamping rods.

[0008] Preferably, two sides of the I-shaped piece are fixedly connected to limiting blocks, and one side of the limiting blocks is in contact with an adjacent fuse.

[0009] Preferably, both ends of the clamping rod are arranged in a curved shape and are bent in opposite directions.

[0010] Preferably, a rubber strip is provided at the bottom of the U-shaped sleeve on one side of the I-shaped piece.

[0011] Preferably, a small hole is provided on one side of the top of the U-shaped sleeve.

[0012] Preferably, a pull piece is provided on one side of the U-shaped sleeve.

[0013] Preferably, the top and bottom of the U-shaped sleeve are symmetrically provided with deformation grooves, both sides of the top and both sides of the bottom of the U-shaped sleeve are provided with clamping grooves, and both sides of the inner walls of the device body cavity are symmetrically fixedly connected with clamping blocks, which are clamped with the corresponding clamping grooves.

[0014] Preferably, the U-shaped sleeve is consistent with the width of the inner cavity.

[0015] Compared with the related art, the utility model has the following beneficial effects:

[0016] The utility model uses a U-shaped sleeve connected by sliding and a I-shaped piece connected by rotation, so that the user can easily take out the fuse from the fuse and replace it with a new fuse without disassembling the entire fuse or complex internal components. This design greatly shortens the maintenance time and improves work efficiency. The steps for taking out and installing the fuse are simple, and a fuse is reserved for spare, which is convenient for timely maintenance of the fuse, thereby greatly reducing the downtime caused by fuse failure and improving production efficiency and continuity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the device of the utility model;

[0019] Figure 3 This is a schematic diagram of the U-shaped sleeve structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the I-shaped piece of the utility model.

[0021] Figure numerals: 1, body; 2, U-shaped sleeve; 3, I-shaped piece; 4, clamping rod; 5, fuse; 6, limit block; 7, rubber strip; 8, small hole; 9, pulling piece; 10, deformation groove; 11, clamping slot; 12, clamping block. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] A fuse with easily replaceable fuse element comprises a fuse body 1, a U-shaped sleeve 2 and a fuse 5;

[0024] like Figures 1 to 4As shown, an inner cavity for accommodating the melt is provided inside the body 1, and contacts electrically connected to the melt are provided on the upper and lower surfaces of the inner cavity, respectively. A U-shaped sleeve 2 is slidably connected to the inner cavity of the body 1, and an I-shaped piece 3 is rotatably connected between the U-shaped sleeves 2. Clamping rods 4 are equidistantly and symmetrically fixedly connected inside the I-shaped piece 3. Fuses 5 are provided on both sides of the I-shaped piece 3, and the fuses 5 are clamped between the clamping rods 4;

[0025] When the fuse is in normal working state, the U-shaped sleeve 2 is slidably connected in the inner cavity of the fuse body 1, and is fixed in position by the clamping block 12 and the clamping slot 11. The two fuses 5 are mechanically fixed to the I-shaped piece 3 through the clamping rod 4, and are indirectly electrically connected to the contacts in the fuse body 1 through the I-shaped piece 3 to form a complete circuit. When the fuse 5 needs to be replaced, the U-shaped sleeve 2 is first pulled out of the inner cavity of the fuse body 1 by external force. After the U-shaped sleeve 2 is pulled out, the I-shaped piece 3 and the clamping rod 4 thereon and the fuses are 5 is also exposed. At this time, the I-shaped piece 3 can be gently rotated manually or by a tool, so that the two fuses 5 rotate together with the clamping rod 4 and the I-shaped piece 3 to achieve mutual alternating positions. This step utilizes the rotating connection characteristics between the I-shaped piece 3 and the U-shaped sleeve 2, making the replacement of the fuse 5 simple and quick. After replacing the fuse 5 to be replaced with a new fuse 5, the U-shaped sleeve 2 is pushed back into the inner cavity of the body 1. At this time, the fuse is restored to its initial state and is ready to be put into use again.

[0026] like Figures 1 to 4 As shown, both sides of the I-shaped member 3 are fixedly connected to the limit blocks 6, and one side of the limit blocks 6 is in contact with the adjacent fuse 5, ensuring that the fuse 5 is stably clamped between the clamping rods 4, so that the fuse 5 can be in a specific position;

[0027] like Figures 1 to 4 As shown, the two ends of the clamp rod 4 are bent in opposite directions. The two ends of the clamp rod 4 are arranged in this way, which makes it easier to push the fuse 5 between the clamp rods 4 or take it out from the clamp rod 4.

[0028] like Figures 1 to 4 As shown, a rubber strip 7 is provided at the bottom of the U-shaped sleeve 2 on one side of the I-shaped piece 3 to limit the I-shaped piece 3 to a certain extent, which helps to make it easier to keep the I-shaped piece 3 at a rated angle after rotating the I-shaped piece 3;

[0029] like Figures 1 to 4 As shown, a small hole 8 is provided on one side of the top of the U-shaped sleeve 2, which is convenient for connecting the U-shaped sleeve 2 and the body 1 by screws for reinforcement.

[0030] like Figures 1 to 4 As shown, a pulling piece 9 is provided on one side of the U-shaped sleeve 2 to provide an external force application point that is easy to operate, making it easier to pull out the U-shaped sleeve 2.

[0031] like Figures 1 to 4 As shown, deformation grooves 10 are symmetrically provided at the top and bottom of the U-shaped sleeve 2, and clamping grooves 11 are provided on both sides of the top and bottom of the U-shaped sleeve 2. Clamping blocks 12 are symmetrically fixedly connected to the inner walls on both sides of the cavity of the device body 1, and the clamping blocks 12 are clamped with the corresponding clamping grooves 11.

[0032] When the U-shaped sleeve 2 is pushed into the inner cavity of the device body 1, the clamping block 12 and the clamping groove 11 are clamped and fixed in position. When the U-shaped sleeve 2 moves out of the inner cavity of the device body 1, the clamping block 12 and the clamping groove 11 are separated, allowing the U-shaped sleeve 2 to move smoothly. In addition, the deformation groove 10 provided on the U-shaped sleeve 2 allows the clamping groove 11 to have a certain deformation space.

[0033] like Figures 1 to 4 As shown, the U-shaped sleeve 2 is consistent with the width of the inner cavity, so that the U-shaped sleeve 2 is more secure when inserted into the device body 1.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fuse with an easily replaceable fuse element, comprising: A body (1), wherein an inner cavity for accommodating a melt is provided inside the body (1), and contacts electrically connected to the melt are provided on the upper surface and the lower surface of the inner cavity respectively; A U-shaped sleeve (2), the inner cavity of the body (1) is slidably connected to the U-shaped sleeve (2), an I-shaped piece (3) is rotatably connected between the U-shaped sleeves (2), and a clamping rod (4) is fixedly connected to the inside of the I-shaped piece (3) at equal distances and symmetrically; A fuse (5) is provided on both sides of the I-shaped member (3), and the fuse (5) is clamped between the clamping rods (4).

2. The fuse with easily replaceable fuse element according to claim 1, characterized in that: The two sides of the I-shaped piece (3) are fixedly connected to limit blocks (6), and one side of the limit blocks (6) is in contact with an adjacent fuse (5).

3. The fuse with easily replaceable fuse element according to claim 1, characterized in that: The two ends of the clamping rod (4) are arranged in a curved shape and are bent in opposite directions.

4. The fuse with easily replaceable fuse element according to claim 1, characterized in that: The bottom of the U-shaped sleeve (2) is provided with a rubber strip (7) located on one side of the I-shaped piece (3).

5. The fuse with easily replaceable fuse element according to claim 1, characterized in that: A small hole (8) is provided on one side of the top of the U-shaped sleeve (2).

6. The fuse with easily replaceable fuse element according to claim 1, characterized in that: A pulling piece (9) is provided on one side of the U-shaped sleeve (2).

7. The fuse with easily replaceable fuse element according to claim 1, characterized in that: The top and bottom of the U-shaped sleeve (2) are symmetrically provided with deformation grooves (10), both sides of the top and both sides of the bottom of the U-shaped sleeve (2) are provided with clamping grooves (11), and both sides of the inner walls of the cavity of the device body (1) are symmetrically fixedly connected with clamping blocks (12), and the clamping blocks (12) are clamped with corresponding clamping grooves (11).

8. The fuse with easily replaceable fuse element according to claim 1, characterized in that: The U-shaped sleeve (2) has the same width as the inner cavity.

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