Fuse with adjustable insulation gap

Abstract

The utility model discloses a fuse with an adjustable insulation gap, and belongs to the technical field of fuses. The fuse with the adjustable insulation gap comprises a conductive plate and an insulation tube, and further comprises an adjusting assembly, the adjusting assembly is located in the insulation tube, an adjusting groove is formed in the surface of the insulation tube, tube covers are arranged at the two ends of the insulation tube respectively, anti-skid lines are arranged on the outer ring surfaces of the tube covers, and base plates are arranged in the tube covers. A sealing ring is arranged between the base plate and the tube cover, a limiting plate is arranged between the base plate and the insulating tube, and a fuse link is arranged in the insulating tube. In order to solve the problems that the insulation gap cannot be rapidly adjusted according to the application environment and the applicability is insufficient, conductive plates are installed on the two sides of an insulation pipe respectively, an adjusting assembly is connected with the conductive plate on the left side, and the distance between an adjusting column in the adjusting assembly and the conductive plate on the right side is adjusted, so that the insulation gap is rapidly adjusted on site; and the applicability to different environments is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuses, in particular to a fuse with an adjustable insulation gap. Background Art

[0002] A fuse is an electrical device that uses the heat generated by itself to melt the fuse and disconnect the circuit when the current exceeds the specified value. A fuse is a current protector made based on the principle that after the current exceeds the specified value for a period of time, the heat generated by itself will melt the fuse and disconnect the circuit. In a fuse, when the fuse melts and disconnects the circuit, an arc will be generated. The insulation gap can ensure that this arc will not cross to other parts, thereby preventing short circuits and fires. A suitable insulation gap can protect the fuse from reducing its insulation capacity due to environmental factors (such as humidity and pollution) during long-term operation, thereby ensuring the safe operation of the entire electrical equipment.

[0003] A Chinese patent with publication number CN219658653U discloses a fuse. By making the conductive component an integrated molded component, when manufacturing the fuse, it is only necessary to prefabricate the housing and the conductive component and then assemble them, thereby greatly reducing the number of parts of the fuse, simplifying the production process and flow, and also reducing the difficulty of assembly, making the parts easier to position, avoiding the problem of the melt being difficult to position and easy to deform during the assembly of conventional fuses, thereby making the manufacturing process of the fuse simpler, improving production efficiency and product reliability, and reducing product costs.

[0004] In the above patent, the insulation gap is controlled by setting a groove on the fuse piece, but there is a problem that the insulation gap cannot be quickly adjusted according to the application environment and the applicability is insufficient; therefore, it does not meet the existing needs, and a fuse with an adjustable insulation gap is proposed. Utility Model Content

[0005] The utility model aims to provide a fuse with adjustable insulation gap, wherein a fuse piece and an adjustment component are arranged inside an insulation tube, one end of a conductive plate extends into the inside of the insulation tube, the fuse piece is connected to the conductive plate by screws, a plurality of adjustment holes are arranged on the surface of the fuse piece, one end of the adjustment component is connected to the fuse piece and the conductive plate by screws, an adjustment column in the adjustment component is inserted into the inside of the adjustment hole, and the insulation gap is controlled by moving the adjustment column, thereby improving applicability and solving problems in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fuse with adjustable insulation gap, comprising a conductive plate and an insulating tube, and also comprising an adjustment component, wherein the adjustment component is located inside the insulating tube, the surface of the insulating tube is provided with an adjustment groove, tube covers are respectively provided at both ends of the insulating tube, the outer ring surface of the tube cover is provided with anti-slip grooves, a pad is provided inside the tube cover, a sealing ring is provided between the pad and the tube cover, a limit plate is provided between the pad and the insulating tube, a fuse is provided inside the insulating tube, a surface of the fuse is provided with a plurality of adjustment holes, and one end of the conductive plate passes through the tube cover, the pad and the limit plate in sequence from the outside to the inside of the insulating tube.

[0007] Preferably, grooves are respectively provided at both ends of the insulating tube, and a plurality of limit blocks are provided on the side of the limit plate, and the limit blocks are stuck in the grooves.

[0008] Preferably, the outer annular surface of the insulating tube is connected to the inner annular surface of the tube cover by threads.

[0009] Preferably, connecting screws are respectively provided at both ends of the fuse piece, and the fuse piece is connected to the conductive plate via the connecting screws.

[0010] Preferably, the adjustment assembly includes a first fixed plate, a second fixed plate, a guide column, a moving block, an adjustment column, a limit platform and a spring, one end of the first fixed plate is connected to the fuse and the conductive plate by a connecting screw, the first fixed plate is connected to the second fixed plate by a guide column, the spring is installed between the limit platform and the moving block, and the moving block is installed on the adjustment column.

[0011] Preferably, a through hole is provided on the side of the moving block, the adjusting column passes through the through hole and contacts the fuse, a rubber sleeve is provided on the upper end of the adjusting column, and a plug is provided on the lower end of the adjusting column, and the plug is located inside the adjusting hole.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model arranges a fuse and an adjustment component inside an insulating tube, one end of a conductive plate extends into the inside of the insulating tube, the fuse is connected to the conductive plate by screws, a plurality of adjustment holes are arranged on the surface of the fuse, one end of the adjustment component is connected to the fuse and the conductive plate by screws, an adjustment column in the adjustment component is inserted into the adjustment hole, and the distance between the adjustment column and the conductive plate at the other end is controlled by moving the adjustment column to insert into the adjustment holes at different distances, thereby controlling the insulation distance between the two conductive plates, thereby realizing rapid adjustment and improving the applicability to different environments.

[0014] 2. The utility model connects the insulating tube and the tube cover by threads, arranges a pad in the middle of the tube cover, arranges a sealing ring between the pad and the tube cover, and arranges a limit plate between the pad and the insulating tube. One end of the conductive plate passes through the tube cover, the pad and the limit plate in sequence from the outside to the inside of the insulating tube, so that the position of the conductive plate is fixed, making it more convenient to disassemble and assemble the fuse, saving time and labor costs, and enhancing flexibility and applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall front view of the utility model;

[0016] Figure 2 This is a cross-sectional view of the insulating tube of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the fuse of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the regulating component of the utility model.

[0019] In the figure: 1. conductive plate; 2. insulating tube; 201. adjusting groove; 3. tube cover; 301. anti-slip groove; 302. pad; 303. rubber ring; 304. limit plate; 3041. limit block; 4. fuse; 401. adjusting hole; 5. connecting screw; 6. adjusting assembly; 601. first fixed plate; 602. second fixed plate; 603. guide column; 604. moving block; 605. adjusting column; 606. limit platform; 607. spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In order to solve the problem of not being able to quickly adjust the insulation gap according to the application environment and insufficient applicability, please refer to Figure 1-4The utility model provides an embodiment: a fuse with adjustable insulation gap, including a conductive plate 1 and an insulating tube 2, and also including an adjustment component 6, the adjustment component 6 is located inside the insulating tube 2, the surface of the insulating tube 2 is provided with an adjustment groove 201, both ends of the insulating tube 2 are provided with a tube cover 3, the outer ring surface of the tube cover 3 is provided with an anti-slip pattern 301, a pad 302 is provided inside the tube cover 3, a rubber ring 303 is provided between the pad 302 and the tube cover 3, a limiting plate 304 is provided between the pad 302 and the insulating tube 2, a fuse 4 is provided inside the insulating tube 2, and a plurality of adjustment holes 401 are provided on the surface of the fuse 4, one end of the conductive plate 1 passes through the tube cover 3, the pad 302 and the limiting plate 304 in sequence from the outside to the inside of the insulating tube 2.

[0022] The adjustment component 6 includes a first fixed plate 601, a second fixed plate 602, a guide column 603, a moving block 604, an adjustment column 605, a limiting platform 606 and a spring 607. One end of the first fixed plate 601 is connected to the fuse 4 and the conductive plate 1 by a connecting screw 5. The first fixed plate 601 is connected to the second fixed plate 602 by a guide column 603. The spring 607 is installed between the limiting platform 606 and the moving block 604. The moving block 604 is installed on the adjustment column 605. A through hole is provided on the side of the moving block 604. The adjustment column 605 passes through the through hole and contacts with the fuse 4. A rubber sleeve is provided on the upper end of the adjustment column 605. A plug is provided at the lower end of the adjustment column 605. The plug is located inside the adjustment hole 401.

[0023] The current passes through the fuse 4, the adjustment column 605, the moving block 604, the guide column 603 and the first fixed plate 601 from the right conductive plate 1 in sequence, and finally the current contacts the left conductive plate 1; by inserting the adjustment column 605 into the adjustment hole 401 and moving the adjustment column 605 toward the right conductive plate 1, the insulation distance can be quickly adjusted, further improving the applicability to different environments.

[0024] Grooves are respectively provided at both ends of the insulating tube 2, and a plurality of limit blocks 3041 are provided on the side of the limit plate 304, and the limit blocks 3041 are stuck in the inside of the grooves. The outer ring surface of the insulating tube 2 is connected to the inner ring surface of the tube cover 3 by threads, and connecting screws 5 are respectively provided at both ends of the fuse piece 4, and the fuse piece 4 is connected to the conductive plate 1 by connecting screws 5; after the conductive plate 1 and the fuse piece 4 are connected inside the insulating tube 2, the limit plate 304, the pad 302, the rubber ring 303 and the tube cover 3 are sequentially installed at one end of the insulating tube to complete the installation of the fuse, making it more convenient to disassemble and assemble the fuse, saving time and labor costs, and further enhancing flexibility and applicability.

[0025] Working principle: a conductive plate 1, a fuse 4 and an adjusting component 6 are installed inside the insulating tube 2; the adjusting component 6 is connected to the conductive plate 1 and the fuse 4 on the left; the fuse 4 is connected to the conductive plates 1 on the left and right sides; by lifting the adjusting column 605 and moving the adjusting column 605 along the guide column 603, and finally lowering the adjusting column 605 to a suitable adjusting hole 401, the distance between the adjusting column 605 in the adjusting component 6 and the conductive plate 1 on the right side is controlled, thereby controlling the insulation distance between the conductive plates 1 on both sides, thereby achieving rapid adjustment and improving the applicability to different application environments.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] 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 adjustable insulation gap, comprising a conductive plate (1) and an insulating tube (2), characterized in that; The invention also comprises an adjustment component (6), wherein the adjustment component (6) is located inside the insulating tube (2), the surface of the insulating tube (2) is provided with an adjustment groove (201), both ends of the insulating tube (2) are provided with tube covers (3), the outer ring surface of the tube cover (3) is provided with an anti-slip pattern (301), a pad (302) is provided inside the tube cover (3), a rubber ring (303) is provided between the pad (302) and the tube cover (3), a limit plate (304) is provided between the pad (302) and the insulating tube (2), a fuse (4) is provided inside the insulating tube (2), the surface of the fuse (4) is provided with a plurality of adjustment holes (401), and one end of the conductive plate (1) passes through the tube cover (3), the pad (302) and the limit plate (304) in sequence from the outside to the inside of the insulating tube (2).

2. A fuse with adjustable insulation gap according to claim 1, characterized in that: Grooves are respectively arranged at both ends of the insulating tube (2), and a plurality of limiting blocks (3041) are arranged on the side of the limiting plate (304), wherein the limiting blocks (3041) are stuck in the inside of the grooves.

3. The fuse with adjustable insulation gap according to claim 1, characterized in that: The outer annular surface of the insulating tube (2) is connected to the inner annular surface of the tube cover (3) via threads.

4. The fuse with adjustable insulation gap according to claim 1, characterized in that: Connecting screws (5) are respectively provided at both ends of the fuse piece (4), and the fuse piece (4) and the conductive plate (1) are connected via the connecting screws (5).

5. The fuse with adjustable insulation gap according to claim 1, characterized in that: The adjustment assembly (6) comprises a first fixed plate (601), a second fixed plate (602), a guide column (603), a moving block (604), an adjustment column (605), a limiting platform (606) and a spring (607); one end of the first fixed plate (601) is connected to the fuse (4) and the conductive plate (1) via a connecting screw (5); the first fixed plate (601) is connected to the second fixed plate (602) via the guide column (603); the spring (607) is installed between the limiting platform (606) and the moving block (604); and the moving block (604) is installed on the adjustment column (605).

6. A fuse with adjustable insulation gap according to claim 5, characterized in that: A through hole is provided on the side of the moving block (604), and the adjusting column (605) passes through the through hole to contact the fuse (4). A rubber sleeve is provided at the upper end of the adjusting column (605), and a plug is provided at the lower end of the adjusting column (605), and the plug is located inside the adjusting hole (401).

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