Miniature copper cap special for fuse tube

Abstract

The utility model discloses a miniature copper cap special for a fuse tube, relates to the technical field of fuses, and solves the problems that a conventional miniature copper cap is clamped through a wedge-shaped fixing block and is inconvenient to disassemble when in use, and a fuse is connected with the copper cap through welding and is inconvenient to replace, so that the use cost is increased. According to the scheme, the fuse comprises two copper cap bodies, a glass tube and a fuse body, positioning and clamping mechanisms are installed between the interiors of the two copper cap bodies and the two ends of the glass tube, and the fuse body is located in the glass tube. When the copper cap body needs to be disassembled, the copper cap body only needs to be pulled out with force, the clamping block can be moved out of the clamping groove, so that the copper cap body can be disassembled, and through the arranged positioning and clamping mechanism, when the fuse body needs to be replaced, the fuse body can be replaced only by pulling a moving plate upwards.

Description

Technical Field

[0001] The utility model relates to the technical field of fuses, in particular to a micro copper cap specially used for fuse tubes. Background Art

[0002] Fuses are also called current fuses, and they mainly serve as overload protection. If the fuse is correctly placed in the circuit, the fuse will melt and cut off the current when the current abnormally rises to a certain height and temperature, thus protecting the safe operation of the circuit. Copper caps are set on both sides of the fuse tube. After searching, the Chinese patent announcement number CN218160259U discloses a miniature copper cap specially used for fuse tubes. Through the setting of mechanisms such as springs and wedge-shaped fixing blocks, the copper cap can be automatically fixed and sealed after being put on the fuse tube, thereby simplifying the assembly process of the copper cap and the fuse tube and improving the assembly efficiency. Although this technical solution facilitates the assembly of the copper cap, it is inconvenient to disassemble it because it is clamped by the wedge-shaped fixing block during use, thereby reducing its practicality.

[0003] The Chinese patent publication number CN209312695U discloses a micro copper cap for a fuse tube, which can be directly assembled with the copper cap by plugging, thereby increasing the assembly speed. This technical solution can increase the assembly speed, but when in use, the fuse is connected to the copper cap by welding, which is inconvenient to replace, thereby increasing the cost of use. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a miniature copper cap specially used for a fuse tube, which solves the problems in the background art that the existing miniature copper cap is clamped by a wedge-shaped fixing block during use, which makes it inconvenient to disassemble, and the fuse is connected to the copper cap by welding, which makes it inconvenient to replace, thereby increasing the cost of use.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a miniature copper cap dedicated to a fuse tube, comprising two copper cap bodies, a glass tube and a fuse body, a positioning clamping mechanism is installed between the inside of the two copper cap bodies and the two ends of the glass tube, the fuse body is located inside the glass tube, and a positioning clamping mechanism matching the fuse body is installed through the outer surface of the copper cap body;

[0006] The positioning clamping mechanism includes a plurality of receiving grooves in a circular array on the inner wall of the copper cap body, a first spring is fixedly connected inside the receiving groove, a clamping block is fixedly connected to one end of the first spring, and a clamping groove matching the clamping block is provided on the outer surface of the glass tube.

[0007] Preferably, the cross-sectional shape of one end of the clamping block is semicircular, and the cross-sectional shape of the clamping slot is semicircular, so that the clamping block can be moved out of the clamping slot when subjected to force.

[0008] Preferably, the positioning and clamping mechanism includes a mounting hole opened at the center position of one side of the outer surface of the copper cap body, a fixed plate is fixedly connected to the inside of the mounting hole, a movable plate is slidably connected to the inside of the mounting hole, semicircular placement grooves are opened between one end of the fixed plate and one end of the movable plate, and one end of the fuse body is located inside the two semicircular placement grooves, and one end of the fuse body can be clamped by the movable plate and the fixed plate.

[0009] Preferably, a travel groove is provided at the inner top of the mounting hole, a second spring is fixedly connected to the inside of the travel groove, a slide plate slidably connected to the inner wall of the travel groove is fixedly connected to the bottom end of the second spring, and the bottom end of the slide plate is fixedly connected to the outer surface of the movable plate, so as to automatically apply thrust to the movable plate, thereby clamping one end of the fuse body.

[0010] Preferably, the fixed plate and the movable plate are both made of copper to facilitate conductivity.

[0011] Preferably, a limiting ring matching the glass tube is fixedly connected to the inner wall of the copper cap body, so as to facilitate limiting the position of the glass tube.

[0012] The utility model provides a micro copper cap specially used for fuse tubes, which has the following beneficial effects:

[0013] 1. The miniature copper cap specially used for a fuse tube has a positioning and clamping mechanism. When the copper cap body needs to be removed, the copper cap body only needs to be pulled outward with force to move the clamping block out of the clamping slot, so that the copper cap body can be removed. This solves the problem that the miniature copper cap specially used for the existing fuse tube is clamped by a wedge-shaped fixing block, which is inconvenient to disassemble and reduces practicality.

[0014] 2. The miniature copper cap specially used for the fuse tube has a positioning and clamping mechanism. When the fuse body needs to be replaced, the fuse body can be replaced by simply pulling the moving plate upwards, thereby solving the problem that the fuse of the existing miniature copper cap specially used for the fuse tube is connected to the copper cap by welding, which is inconvenient to replace and increases the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0016] Figure 2 It is a partial structural schematic diagram of the utility model;

[0017] Figure 3It is a schematic diagram of the overall structure of the utility model.

[0018] In the figure, 1. copper cap body; 2. glass tube; 3. fuse body; 4. positioning clamping mechanism; 41. storage groove; 42. first spring; 43. clamping block; 44. clamping groove; 5. positioning clamping mechanism; 51. mounting hole; 52. fixed plate; 53. movable plate; 54. semicircular placement groove; 55. travel groove; 56. second spring; 57. slide plate; 6. limit ring. DETAILED DESCRIPTION

[0019] 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.

[0020] Embodiment 1:

[0021] like Figures 1 to 3 As shown, a micro copper cap for fuse tube includes two copper cap bodies 1, a glass tube 2 and a fuse body 3, wherein the inner wall of the copper cap body 1 is fixedly connected with a limit ring 6 matched with the glass tube 2. A positioning clamping mechanism 4 is installed between the inside of the two copper cap bodies 1 and the two ends of the glass tube 2, wherein the positioning clamping mechanism 4 includes a plurality of receiving grooves 41 in an annular array provided on the inner wall of the copper cap body 1, wherein a first spring 42 is fixedly connected inside the receiving groove 41, wherein a clamping block 43 is fixedly connected at one end of the first spring 42, and a clamping groove 44 matched with the clamping block 43 is provided on the outer surface of the glass tube 2. The cross-sectional shape of one end of the clamping block 43 is semicircular, and the cross-sectional shape of the clamping groove 44 is semicircular. When in use, the first spring 42 applies elastic force to the clamping block 43, so that the clamping block 43 is clamped into the clamping groove 44, thereby fixing the copper cap body 1 at the end of the glass tube 2, and it is not easy to fall off. In addition, since the cross-sectional shape of one end of the clamping block 43 and the cross-sectional shape of the clamping groove 44 are both semicircular, when it is necessary to remove the copper cap body 1, it is only necessary to pull the copper cap body 1 outward with force to move the clamping block 43 out of the clamping groove 44, so that the copper cap body 1 can be removed, thereby solving the problem that the existing micro copper cap dedicated to the fuse tube is clamped by a wedge-shaped fixing block, which is inconvenient to remove and reduces practicality.

[0022] Embodiment 2:

[0023] like Figures 1 to 3As shown, the fuse body 3 is located inside the glass tube 2, and a positioning clamping mechanism 5 matching with the fuse body 3 is installed through the outer surface of the copper cap body 1, and the positioning clamping mechanism 5 includes a mounting hole 51 opened at the center position of one side of the outer surface of the copper cap body 1, and a fixed plate 52 is fixedly connected to the inside of the mounting hole 51, and a movable plate 53 is slidably connected to the inside of the mounting hole 51, and a semicircular placement groove 54 is opened between one end of the fixed plate 52 and one end of the movable plate 53, and one end of the fuse body 3 is located inside the two semicircular placement grooves 54. A travel groove 55 is opened at the inner top of the mounting hole 51, and a second spring 56 is fixedly connected to the inside of the travel groove 55, and a slide plate 57 slidably connected to the inner wall of the travel groove 55 is fixedly connected to the bottom end of the second spring 56, and the bottom end of the slide plate 57 is fixedly connected to the outer surface of the movable plate 53, and the fixed plate 52 and the movable plate 53 are both made of copper. When in use, the second spring 56 applies elastic force to the slide plate 57, thereby squeezing the movable plate 53, and cooperating with the fixed plate 52 to fix the two ends of the fuse body 3. Since the fixed plate 52 and the movable plate 53 are all made of copper, the copper cap body 1, the fixed plate 52 and the movable plate 53 can all be conductive, thereby facilitating use. When the fuse body 3 needs to be replaced, the fuse body 3 can be replaced by simply pulling the movable plate 53 upwards, thereby solving the problem that the fuse of the micro copper cap dedicated to the existing fuse tube is connected to the copper cap by welding, which is inconvenient to replace and increases the use cost.

[0024] Working principle: when in use, the first spring 42 will apply elastic force to the clamping block 43, so that the clamping block 43 is clamped into the clamping groove 44, so that the copper cap body 1 is fixed to the end of the glass tube 2, and it is not easy to fall off. Moreover, since the cross-sectional shape of one end of the clamping block 43 and the cross-sectional shape of the clamping groove 44 are both semicircular, when it is necessary to remove the copper cap body 1, it is only necessary to pull the copper cap body 1 outward with force to move the clamping block 43 out of the clamping groove 44, so that the copper cap body 1 can be removed, thereby solving the problem that the existing micro copper cap dedicated to the fuse tube is clamped by a wedge-shaped fixing block, which is inconvenient to disassemble and reduces practicality.

[0025] When in use, the second spring 56 applies elastic force to the slide plate 57, thereby squeezing the movable plate 53, and cooperating with the fixed plate 52 to fix the two ends of the fuse body 3. Since the fixed plate 52 and the movable plate 53 are all made of copper, the copper cap body 1, the fixed plate 52 and the movable plate 53 can all be conductive, thereby facilitating use. When the fuse body 3 needs to be replaced, the fuse body 3 can be replaced by simply pulling the movable plate 53 upwards, thereby solving the problem that the fuse of the micro copper cap dedicated to the existing fuse tube is connected to the copper cap by welding, which is inconvenient to replace and increases the use cost.

[0026] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A miniature copper cap for a fuse tube, comprising two copper cap bodies (1), a glass tube (2) and a fuse body (3), characterized in that: A positioning clamping mechanism (4) is installed between the interior of the two copper cap bodies (1) and the two ends of the glass tube (2); the fuse body (3) is located inside the glass tube (2), and a positioning clamping mechanism (5) matching the fuse body (3) is installed through the outer surface of the copper cap body (1); The positioning clamping mechanism (4) comprises a plurality of receiving grooves (41) arranged in an annular array on the inner wall of the copper cap body (1); a first spring (42) is fixedly connected inside the receiving groove (41); a clamping block (43) is fixedly connected to one end of the first spring (42); and a clamping groove (44) matching the clamping block (43) is arranged on the outer surface of the glass tube (2).

2. A micro copper cap for fuse tube according to claim 1, characterized in that: The cross-sectional shape of one end of the clamping block (43) is semicircular, and the cross-sectional shape of the clamping slot (44) is semicircular.

3. The micro copper cap for fuse tube according to claim 1, characterized in that: The positioning clamping mechanism (5) comprises a mounting hole (51) provided at the center position of one side of the outer surface of the copper cap body (1); a fixing plate (52) is fixedly connected to the inside of the mounting hole (51); a moving plate (53) is slidably connected to the inside of the mounting hole (51); a semicircular placement groove (54) is provided between one end of the fixing plate (52) and one end of the moving plate (53); and one end of the fuse body (3) is located inside the two semicircular placement grooves (54).

4. The micro copper cap for fuse tube according to claim 3, characterized in that: The inner top of the mounting hole (51) is provided with a travel groove (55), the interior of the travel groove (55) is fixedly connected with a second spring (56), the bottom end of the second spring (56) is fixedly connected with a slide plate (57) slidably connected to the inner wall of the travel groove (55), and the bottom end of the slide plate (57) is fixedly connected to the outer surface of the movable plate (53).

5. The micro copper cap for fuse tube according to claim 4, characterized in that: The fixed plate (52) and the movable plate (53) are both made of copper.

6. The micro copper cap for fuse tube according to claim 1, characterized in that: The inner wall of the copper cap body (1) is fixedly connected with a limiting ring (6) that matches the glass tube (2).

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