Current rapid fuse

Abstract

The utility model relates to the electromechanical and electrical technical field, and discloses a current rapid fuse. Comprising a fuse body and further comprises a shell arranged on one side of the fuse body. The main body mechanism is arranged on one side of the shell and used for fusing a circuit, the main body mechanism comprises a mounting frame fixed on one side of the shell, the inner wall of the mounting frame is in sliding connection with a first mounting rod, and the inner wall of the mounting frame is in clamping connection with a fuse link; according to the utility model, the main body mechanism is arranged so that a circuit can be rapidly cut off when current is short-circuited, thereby protecting the circuit and electrical equipment from being damaged, the dismounting mechanism is arranged so that the housing on the outer side of the fuse body can be conveniently dismounted, the housing which is easy to dismount enables the fuse to be maintained and replaced more rapidly, the maintenance time is reduced, and the maintenance efficiency is improved. Especially in emergency, normal operation of a power system can be quickly recovered, and regular inspection and maintenance become easier due to the fact that the fuse shell is easy to disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of electromechanical and electrical technology, in particular to a fast current fuse. Background Art

[0002] A fast-acting fuse is an electrical protection device whose main function is to quickly disconnect the circuit when an overcurrent (such as a short circuit or overload) occurs in the circuit, thereby protecting the circuit and electrical equipment from damage.

[0003] Overcurrent can occur in circuits due to various reasons, such as short circuits, equipment failures, or overloads. If not promptly stopped, this overcurrent can cause wire overheating, insulation degradation, and even fire. Therefore, fast-acting fuses are necessary. However, the simple design of traditional fast-acting fuses makes it difficult to disassemble the fuse housing. This inconvenient housing design increases the time and difficulty of fuse maintenance and replacement. In emergency situations, this can delay system recovery and affect production or service continuity. Utility Model Content

[0004] The purpose of the present utility model is to provide a fast current fuse to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a fast-acting current fuse, comprising a fuse body, and further comprising:

[0006] A housing provided on one side of the fuse body;

[0007] A main mechanism for fusing the circuit is provided on one side of the housing, the main mechanism comprising a mounting frame fixed to one side of the housing, a first mounting rod being slidably connected to the inner wall of the mounting frame, a fuse being clamped to the inner wall of the mounting frame, and the inner wall of the fuse being clamped to the outer side of the first mounting rod, and a second mounting rod being clamped to the inner wall of the mounting frame;

[0008] A disassembly mechanism is provided at the top of the fuse body for disassembling the shell. The disassembly mechanism includes a clamping block fixed to the top of the fuse body. The inner wall of the clamping block is clamped with a limit rod. The inner wall of the limit rod is rotatably connected to a rotating shaft, and one end of the rotating shaft is rotatably connected to the top of the shell.

[0009] Preferably, one end of the rotating shaft is fixedly connected to a limiting disk for limiting the limiting rod, and the top of the fuse body is fixedly connected to a fixing block.

[0010] Preferably, the inner wall of the fixing block is rotatably connected to a rotating rod, and one end of the rotating rod is rotatably connected to a mounting plate.

[0011] Preferably, a connecting block is fixedly connected to the outer side of the rotating rod, and a sliding block is slidably connected to the inner wall of the connecting block.

[0012] Preferably, a connecting rod is fixedly connected to the inner wall of the sliding block, and a connecting plate is fixedly connected to one side of the limiting rod.

[0013] Preferably, one end of the connecting rod is fixedly connected to a fixing plate for limiting the connecting rod.

[0014] Preferably, one side of the first mounting rod is fixedly connected to a positioning block, and the bottom of the positioning block is clamped with the top of the mounting frame, and one side of the second mounting rod is fixedly connected to a limiting block, and one side of the limiting block is clamped with one side of the mounting frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The utility model can facilitate the rapid disconnection of the circuit when the current is short-circuited by providing the main body mechanism, thereby protecting the circuit and electrical equipment from damage. The outer shell of the fuse body can be easily disassembled by providing the disassembly mechanism. The easily disassembled shell makes maintenance and replacement of the fuse faster and reduces maintenance time. In particular, in an emergency, the normal operation of the power system can be quickly restored. The easily disassembled fuse shell makes regular inspection and maintenance easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a preferred embodiment of a fast current fuse provided by the utility model;

[0018] Figure 2 A schematic diagram of the fuse body and housing structure provided by the utility model;

[0019] Figure 3 for Figure 1 An enlarged structural diagram of point A is shown;

[0020] Figure 4 for Figure 2 Schematic diagram of the enlarged structure at point B shown.

[0021] In the figure: 1. Fuse body; 2. Shell; 3. Main body; 31. Mounting frame; 32. First mounting rod; 33. Fuse link; 34. Second mounting rod; 4. Disassembly mechanism; 41. Clamping block; 42. Limiting rod; 43. Rotating shaft; 5. Limiting plate; 6. Fixing block; 7. Rotating rod; 8. Mounting plate; 9. Connecting block; 10. Slider; 11. Connecting rod; 12. Connecting plate; 13. Fixing plate; 14. Positioning block; 15. Limiting block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0023] See also Figure 1-4 As shown, a current fast fuse includes a fuse body 1, which is installed by setting the fuse body 1 and the shell 2. The shell 2 is set on one side of the fuse body 1. By setting the shell 2, it is convenient to fix the installation frame 31; a main body mechanism 3 is set on one side of the shell 2 for fusing the circuit. The main body mechanism 3 includes a mounting frame 31 fixed to one side of the shell 2. By setting the mounting frame 31, it is convenient to clamp the positioning block 14. The inner wall of the mounting frame 31 is slidably connected with a first mounting rod 32. By setting the first mounting rod 32, it is convenient to clamp the fuse piece 33. The inner wall of the mounting frame 31 is clamped with the fuse piece 33. By setting the fuse piece 33, it is convenient to fuse the circuit, and the fuse piece 33 The inner wall of the mounting frame 31 is clamped with the outer side of the first mounting rod 32, and the inner wall of the mounting frame 31 is clamped with the second mounting rod 34. By setting the second mounting rod 34, the fuse piece 33 can be easily clamped; a disassembly mechanism 4 for disassembling the shell 2 is provided at the top of the fuse body 1, and the disassembly mechanism 4 includes a clamping block 41 fixed to the top of the fuse body 1. By setting the clamping block 41, it is convenient to clamp the limit rod 42. The inner wall of the clamping block 41 is clamped with the limit rod 42. By setting the limit rod 42, it is convenient to clamp the clamping block 41. The inner wall of the limit rod 42 is rotatably connected with a rotating shaft 43. By setting the rotating shaft 43, the limit rod 42 can be easily rotated, and one end of the rotating shaft 43 is rotatably connected to the top of the shell 2.

[0024] One end of the rotating shaft 43 is fixedly connected to a limiting plate 5 for limiting the limiting rod 42. The top of the fuse body 1 is fixedly connected to a fixing block 6. By setting the fixing block 6, it is convenient to rotate the rotating rod 7; the inner wall of the fixing block 6 is rotatably connected to the rotating rod 7. By setting the rotating rod 7, it is convenient to fix the connecting block 9. One end of the rotating rod 7 is rotatably connected to the mounting plate 8. By setting the mounting plate 8, it is convenient to limit the rotating rod 7; the outer side of the rotating rod 7 is fixedly connected to the connecting block 9. By setting the connecting block 9 , which can facilitate the sliding of the slider 10. It is explained here that a spring for resetting the slider 10 is provided inside the connecting block 9, and the inner wall of the connecting block 9 is slidably connected to the slider 10. By providing the slider 10, it is convenient to connect the connecting rod 11; the inner wall of the slider 10 is fixedly connected to the connecting rod 11, and by providing the connecting rod 11, it is convenient to connect the connecting plate 12, and one side of the limit rod 42 is fixedly connected to the connecting plate 12. By providing the connecting plate 12, it is convenient to connect the limit rod 42.

[0025] One end of the connecting rod 11 is fixedly connected to a fixing plate 13 for limiting the connecting rod 11 .

[0026] One side of the first mounting rod 32 is fixedly connected with a positioning block 14. By providing the positioning block 14, the first mounting rod 32 can be easily installed, and the bottom of the positioning block 14 is snap-fitted to the top of the mounting frame 31. One side of the second mounting rod 34 is fixedly connected with a limiting block 15. By providing the limiting block 15, the second mounting rod 34 can be easily fixed, and one side of the limiting block 15 is snap-fitted to one side of the mounting frame 31.

[0027] Working principle: When in use, the fuse body 1 utilizes the fuse piece 33. When the current exceeds the rated value, the fuse element melts due to the heat generated by the current, thereby cutting off the circuit and preventing the overcurrent from continuing to flow through the circuit. When it is necessary to disassemble the shell 2 for internal maintenance of the fuse body 1, the rotating shaft 43 is used as a fulcrum, and the rotating rod 7 and the connecting rod 11 are used as fulcrums to move the limit rod 42, and the connecting block 9 resets the slider 10, so that the limit rod 42 is pressed against the inner wall of the clamping block 41, thereby disassembling the clamping block 41, and then disassembling the shell 2 and the fuse body 1.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A current fast fuse, comprising a fuse body (1), characterized in that: Also includes: A housing (2) provided on one side of the fuse body (1); A main body mechanism (3) is provided on one side of the housing (2) for fusing the circuit, the main body mechanism (3) comprising a mounting frame (31) fixed to one side of the housing (2), the inner wall of the mounting frame (31) being slidably connected to a first mounting rod (32), the inner wall of the mounting frame (31) being clamped with a fuse piece (33), and the inner wall of the fuse piece (33) being clamped with the outer side of the first mounting rod (32), and the inner wall of the mounting frame (31) being clamped with a second mounting rod (34); A disassembly mechanism (4) is provided on the top of the fuse body (1) for disassembling the shell (2), the disassembly mechanism (4) comprising a clamping block (41) fixed to the top of the fuse body (1), the inner wall of the clamping block (41) being clamped to a limit rod (42), the inner wall of the limit rod (42) being rotatably connected to a rotating shaft (43), and one end of the rotating shaft (43) being rotatably connected to the top of the shell (2).

2. A fast current fuse according to claim 1, characterized in that: One end of the rotating shaft (43) is fixedly connected to a limiting disk (5) for limiting the limiting rod (42), and the top of the fuse body (1) is fixedly connected to a fixing block (6).

3. A fast current fuse according to claim 2, characterized in that: The inner wall of the fixed block (6) is rotatably connected to a rotating rod (7), and one end of the rotating rod (7) is rotatably connected to a mounting plate (8).

4. A fast current fuse according to claim 3, characterized in that: The outer side of the rotating rod (7) is fixedly connected to a connecting block (9), and the inner wall of the connecting block (9) is slidably connected to a sliding block (10).

5. A fast current fuse according to claim 4, characterized in that: The inner wall of the slider (10) is fixedly connected to a connecting rod (11), and one side of the limiting rod (42) is fixedly connected to a connecting plate (12).

6. The fast current fuse according to claim 5, characterized in that: One end of the connecting rod (11) is fixedly connected to a fixing plate (13) for limiting the connecting rod (11).

7. The fast current fuse according to claim 1, characterized in that: One side of the first mounting rod (32) is fixedly connected to a positioning block (14), and the bottom of the positioning block (14) is clamped with the top of the mounting frame (31); one side of the second mounting rod (34) is fixedly connected to a limiting block (15), and one side of the limiting block (15) is clamped with one side of the mounting frame (31).

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