Copper cap for fuse tube with available double ends

Abstract

The utility model relates to the technical field of copper caps, in particular to a double-end available copper cap for fuse tubes, which comprises a copper cap, the copper cap comprises a telescopic tube, sleeves are arranged on the left side and the right side of the telescopic tube and slidably inserted with the telescopic tube, sleeves are rotatably connected to the surfaces of the sides, away from the telescopic tube, of the sleeves, and the fuse tubes are arranged on the left side and the right side of the telescopic tube. And the fuse tube is in sliding plug-in connection with the sleeve on the same side. According to the utility model, two fuse tubes can be installed at the same time through the design of the copper cap, the installation of the other fuse tube is not affected in the installation process of one fuse tube, and the whole copper cap can be stretched through the design of the telescopic tube and the two sleeves. The whole copper cap is more practical, and the two fuse tubes can be limited through the design of the two limiting mechanisms, so that the installation of the fuse tubes is more convenient, and the disassembly of the fuse tubes is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of copper caps, in particular to a copper cap for a double-ended fuse tube. Background Art

[0002] Fuse is also called current fuse. IEC127 standard defines it as fuse, which mainly plays the role of 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 need to be set on both sides of the fuse tube during installation.

[0003] The copper cap is an important accessory of the fuse tube, but some copper caps on the market are inconvenient to install with the fuse tube, and it is not convenient to disassemble the fuse tube, which affects the work efficiency. In addition, some copper caps on the market can only be installed with one fuse tube, and cannot be installed with two fuse tubes at the same time, so the practicality is low. Utility Model Content

[0004] The utility model aims to provide a copper cap for a double-ended fuse tube, so as to solve the problem mentioned in the above background technology that some copper caps on the market are inconvenient to install with the fuse tube, and it is not convenient to disassemble the fuse tube, thereby affecting the working efficiency, and some copper caps on the market can only be installed with one fuse tube, and cannot be installed with two fuse tubes at the same time, so the practicality is low.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A copper cap for a double-ended fuse tube comprises a copper cap, wherein the copper cap comprises a telescopic tube, wherein sleeves are provided on both sides of the telescopic tube and are slidably plugged therewith, wherein a sleeve is rotatably connected to a surface of the sleeve away from the telescopic tube, wherein fuse tubes are provided on both sides of the telescopic tube, and the fuse tubes are slidably plugged with the sleeves on the same side, and further comprises:

[0007] Two limiting mechanisms are respectively arranged on the side surfaces of the two sleeves away from the telescopic tube, and are used to limit the two fuse tubes. The limiting mechanisms include a limiting ring fixed on the side surface of the sleeve on the same side away from the telescopic tube and sleeved on the outside of the fuse tube on the same side, a plurality of rotating cylinders rotatably connected to the circumferential outer wall of the limiting ring, a plurality of guide plates fixed on the inner wall of the limiting ring, a plurality of screw rods threadedly connected to the rotating cylinders on the same side, a plurality of limiting plates coaxially fixed on the side surface of the screw on the same side close to the side surface of the fuse tube on the same side and used to limit the fuse tube on the same side, and a plurality of connecting blocks fixed on the side surface of the limiting plate on the same side away from the side surface of the fuse tube on the same side and slidably connected to the guide plate on the same side.

[0008] As a preferred embodiment, a guide groove is provided on the outer wall of the guide plate, and a guide block slidably connected to the guide groove on the outer wall of the guide plate is fixed on the outer wall of the connecting block.

[0009] As a preferred embodiment, the limiting mechanism also includes a plurality of rotating columns coaxially fixed on the surface of the same side rotating cylinder away from the limiting ring, a plurality of rotating disks coaxially fixed on the surface of the same side rotating column away from the limiting ring, and a lever is fixed on the surface of the rotating disk away from the limiting ring.

[0010] As a preferred embodiment, a protective plate is fixed to a surface of the limiting plate close to the fuse tube on the same side, and a surface of the protective plate away from the limiting plate on the same side is in close contact with an outer wall of the fuse tube on the same side.

[0011] As a preferred embodiment, a mounting hole is provided at one end of the circumferential outer wall of the sleeve away from the sleeve on the same side, and the mounting holes on the circumferential outer wall of the sleeve are connected with its inner cavity. The copper cap also includes two fastening screws threadedly connected to the mounting holes on the outer wall of the sleeve on the same side, and the bottom surface of the fastening screws is in tight contact with the outer wall of the telescopic tube.

[0012] As a preferred embodiment, the inner cavity of the sleeve is communicated with the inner cavity of the telescopic tube, the inner cavity of the sleeve is communicated with the inner cavity of the sleeve on the same side, and the inner cavity of the sleeve is communicated with the inner cavity of the fuse tube on the same side.

[0013] As a preferred embodiment, the cross-sectional shape of the guide groove on the outer wall of the guide plate is I-shaped, and the shape of the guide block is I-shaped to match the shape of the guide groove on the outer wall of the guide plate.

[0014] As a preferred embodiment, the shape of the protective plate is matched with the shape of the limiting plate on the same side, and a surface of the protective plate on the side away from the limiting plate on the same side is provided with anti-slip textures.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model can be installed with two fuse tubes at the same time through the design of the copper cap. During the installation of one fuse tube, the installation of the other fuse tube will not be affected. The design of the telescopic tube and the two sleeves can extend and retract the entire copper cap, and the length can be adjusted according to the positions of the two fuse tubes, making the entire copper cap more practical. The design of the two limiting mechanisms can limit the two fuse tubes, so that the installation of the fuse tube is more convenient and the fuse tube is easy to disassemble.

[0017] 2. In the utility model, a guide groove is provided on the outer wall of the guide plate, and a guide block slidably connected to the guide groove on the outer wall of the guide plate is fixed on the outer wall of the connecting block, which can guide the movement of the connecting block and further guide the movement of the limit plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the copper cap in the utility model;

[0020] Figure 3 It is a partial cross-sectional view of the copper cap in the utility model;

[0021] Figure 4 It is a partial exploded view of the copper cap in the utility model;

[0022] Figure 5 It is a schematic diagram of the overall structure of the limiting mechanism in the utility model;

[0023] Figure 6 It is a partial structural schematic diagram of the limiting mechanism in the utility model;

[0024] Figure 7 It is a partial exploded view of the limiting mechanism in the utility model.

[0025] The meaning of each number in the figure is:

[0026] 1. Fuse tube; 2. Copper cap; 21. Telescopic tube; 22. Bushing; 23. Sleeve; 24. Fastening screw; 25. Limiting mechanism; 251. Limiting ring; 252. Rotating drum; 253. Turntable; 254. Rotating column; 255. Lever; 256. Guide plate; 257. Screw; 258. Limiting plate; 259. Protective plate; 2510. Connecting block; 2511. Guide block. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-Figure 7The utility model provides a technical solution: a copper cap for a double-ended fuse tube, comprising a copper cap 2, the copper cap 2 comprising a telescopic tube 21, both left and right sides of the telescopic tube 21 are provided with sleeves 22 slidably plugged therewith, the sleeves 22 are rotatably connected to the surface of the side away from the telescopic tube 21, both left and right sides of the telescopic tube 21 are provided with a fuse tube 1, and the fuse tube 1 is slidably plugged with the sleeve 23 on the same side, and also includes:

[0029] Two limiting mechanisms 25 are respectively arranged on the side surfaces of the two sleeves 23 away from the telescopic tube 21, and are used to limit the two fuse tubes 1. The limiting mechanism 25 includes a limiting ring 251 fixed on the side surface of the sleeve 23 on the same side away from the telescopic tube 21 and sleeved on the outside of the fuse tube 1 on the same side, a plurality of rotating cylinders 252 rotatably connected to the circumferential outer wall of the limiting ring 251, a plurality of guide plates 256 fixed on the inner wall of the limiting ring 251, a plurality of screw rods 257 threadedly connected to the rotating cylinder 252 on the same side, and a plurality of limiting plates 258 coaxially fixed on the side surface of the screw rod 257 on the same side close to the fuse tube 1 on the same side and used to limit the fuse tube 1 on the same side. A plurality of connecting blocks 2510 are fixed on the same-side limiting plate 258, away from the surface of one side of the same-side fuse tube 1 and slidably connected to the same-side guide plate 256. The copper cap 2 is designed so that it can be installed with two fuse tubes 1 at the same time. During the installation of one of the fuse tubes 1, the installation of the other fuse tube 1 will not be affected. The design of the telescopic tube 21 and the two sleeves 22 allows the entire copper cap 2 to be telescoped, making the entire copper cap 2 more practical. The design of the two limiting mechanisms 25 allows the two fuse tubes 1 to be limited, thereby making the installation of the fuse tube 1 more convenient and facilitating the disassembly of the fuse tube 1.

[0030] In this embodiment, a guide groove is provided on the outer wall of the guide plate 256, and a guide block 2511 is fixed on the outer wall of the connecting block 2510 and is slidably connected to the guide groove on the outer wall of the guide plate 256, which can guide the movement of the connecting block 2510 and further guide the movement of the limit plate 258.

[0031] In addition, the limiting mechanism 25 also includes a plurality of rotating columns 254 coaxially fixed on the surface of the same side rotating cylinder 252 away from the limiting ring 251, a plurality of rotating disks 253 coaxially fixed on the surface of the same side rotating column 254 away from the limiting ring 251, and a lever 255 is fixed on the surface of the side of the rotating disk 253 away from the limiting ring 251.

[0032] Furthermore, a protective plate 259 is fixed to a surface of the limiting plate 258 close to the fuse tube 1 on the same side, and a surface of the protective plate 259 away from the limiting plate 258 on the same side is in close contact with the outer wall of the fuse tube 1 on the same side, so that the two fuse tubes 1 can be limited smoothly.

[0033] Specifically, a mounting hole is provided at one end of the circumferential outer wall of the sleeve 22 away from the sleeve 23 on the same side, and the mounting holes on the circumferential outer wall of the sleeve 22 are connected to its inner cavity. The copper cap 2 also includes two fastening screws 24 threadedly connected to the mounting holes on the outer wall of the sleeve 22 on the same side, and the bottom surface of the fastening screws 24 is in close contact with the outer wall of the telescopic tube 21, which can limit the telescopic tube 21.

[0034] It is worth noting that the inner cavity of the sleeve 22 is connected to the inner cavity of the telescopic tube 21, the inner cavity of the sleeve 22 is connected to the inner cavity of the sleeve 23 on the same side, and the inner cavity of the sleeve 23 is connected to the inner cavity of the fuse tube 1 on the same side, so that the external fuse can be smoothly introduced.

[0035] It is worth mentioning that the cross-sectional shape of the guide groove on the outer wall of the guide plate 256 is I-shaped, and the shape of the guide block 2511 is I-shaped to match the shape of the guide groove on the outer wall of the guide plate 256, which can make the connection between the guide block 2511 and the guide groove on the outer wall of the guide plate 256 on the same side tighter, and indirectly make the limit plate 258 and the protective plate 259 more stable during the movement.

[0036] It is worth emphasizing that the shape of the protection plate 259 is compatible with the shape of the limiting plate 258 on the same side, and the surface of the protection plate 259 away from the limiting plate 258 on the same side is provided with anti-slip textures, which can protect the two fuse tubes 1.

[0037] The fuse tube 1 involved in this embodiment is a prior art, and its structure and working principle are well known to those skilled in the art, and will not be elaborated herein.

[0038] In the specific use of this embodiment, when it is necessary to limit the position of two fuse tubes 1, firstly, a part of the outer wall of one of the fuse tubes 1 is inserted into the same-side sleeve 23, and then a plurality of levers 255 in the same-side limiting mechanism 25 are used to rotate a plurality of rotating disks 253 in sequence, and the rotating disks 253 rotate to drive the rotating column 254 coaxially fixed thereto to rotate, and the rotating column 254 rotates to drive the same-side rotating cylinder 252 coaxially fixed thereto to rotate, and the rotating cylinder 252 rotates to drive the same-side screw 257 threadedly connected thereto. The screw rod 257 moves, and the movement of the screw rod 257 drives the same-side limiting plate 258 coaxially fixed therewith to move. The limiting plate 258 moves under the guidance of the same-side connecting block 2510 and the guide groove on the outer wall of the same-side guide plate 256. The movement of the limiting plate 258 drives the protective plate 259 fixed therewith to move toward the direction of the fuse tube 1. When the surfaces of one side of the plurality of protective plates 259 away from the same-side limiting plate 258 are in close contact with the outer wall of the fuse tube 1, the limiting work of the fuse tube 1 is completed.

[0039] Then, unscrew the two fastening screws 24, and by pulling the two sleeves 22, the length of the entire copper cap 2 can be adjusted. The two sleeves 22 are pulled according to the position of the other fuse tube 1. When the two sleeves 22 are in a suitable position, tighten the two fastening screws 24 and make the bottom surfaces of the two fastening screws 24 tightly contact the outer wall of the telescopic tube 21. Then, the multiple dials 253 are rotated in sequence through the multiple levers 255 in another limiting mechanism 25. According to the above, when the surfaces of the side of the multiple protective plates 259 in the other limiting mechanism 25 away from the limiting plate 258 on the same side are tightly contacted with the outer wall of the other fuse tube 1, the limiting work of the other fuse tube 1 is completed.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A copper cap for a double-ended fuse tube, comprising a copper cap (2), characterized in that: The copper cap (2) comprises a telescopic tube (21), the left and right sides of the telescopic tube (21) are provided with sleeves (22) slidably plugged therewith, the surface of the sleeve (22) on one side away from the telescopic tube (21) is rotatably connected with a sleeve (23), the left and right sides of the telescopic tube (21) are provided with a fuse tube (1), and the fuse tube (1) is slidably plugged with the sleeve (23) on the same side, and further comprises: Two limiting mechanisms (25) are respectively arranged on the side surfaces of the two sleeves (23) away from the telescopic tube (21) and are used to limit the two fuse tubes (1). The limiting mechanisms (25) include a limiting ring (251) fixed to the side surface of the sleeve (23) on the same side away from the telescopic tube (21) and sleeved on the outside of the fuse tube (1) on the same side, a plurality of rotating cylinders (252) rotatably connected to the circumferential outer wall of the limiting ring (251), and a fixing member (252) fixed to the limiting ring (251). A plurality of guide plates (256) on the inner wall, a plurality of screw rods (257) threadedly connected to the rotating cylinder (252) on the same side, a plurality of limiting plates (258) coaxially fixed to the screw rods (257) on the same side and close to the surface of the fuse tube (1) on the same side and used to limit the fuse tube (1) on the same side, and a plurality of connecting blocks (2510) fixed to the surface of the limiting plates (258) on the same side and away from the surface of the fuse tube (1) on the same side and slidably connected to the guide plates (256) on the same side.

2. The copper cap for a double-ended fuse tube according to claim 1, characterized in that: A guide groove is provided on the outer wall of the guide plate (256), and a guide block (2511) is fixed on the outer wall of the connecting block (2510) and is slidably connected to the guide groove on the outer wall of the guide plate (256).

3. The copper cap for a double-ended fuse tube according to claim 1, characterized in that: The limiting mechanism (25) further comprises a plurality of rotating columns (254) coaxially fixed on the surface of a side of the rotating cylinder (252) on the same side away from the limiting ring (251), and a plurality of rotating disks (253) coaxially fixed on the surface of a side of the rotating column (254) on the same side away from the limiting ring (251), and a lever (255) is fixed on the surface of a side of the rotating disk (253) away from the limiting ring (251).

4. The copper cap for a double-ended fuse tube according to claim 1, characterized in that: A protective plate (259) is fixed to a surface of the limiting plate (258) on one side close to the fuse tube (1) on the same side, and a surface of the protective plate (259) on one side away from the limiting plate (258) on the same side is in close contact with the outer wall of the fuse tube (1) on the same side.

5. The copper cap for a double-ended fuse tube according to claim 1, characterized in that: The outer circumferential wall of the sleeve (22) is provided with a mounting hole at one end away from the sleeve (23) on the same side, and the mounting holes on the outer circumferential wall of the sleeve (22) are connected to its inner cavity. The copper cap (2) also includes two fastening screws (24) threadedly connected to the mounting holes on the outer wall of the sleeve (22) on the same side, and the bottom surface of the fastening screws (24) is in close contact with the outer wall of the telescopic tube (21).

6. The copper cap for a double-ended fuse tube according to claim 1, characterized in that: The inner cavity of the sleeve (22) is communicated with the inner cavity of the telescopic tube (21), the inner cavity of the sleeve (22) is communicated with the inner cavity of the sleeve (23) on the same side, and the inner cavity of the sleeve (23) is communicated with the inner cavity of the fuse tube (1) on the same side.

7. The copper cap for a double-ended fuse tube according to claim 2, characterized in that: The cross-sectional shape of the guide groove on the outer wall of the guide plate (256) is in the shape of an I-beam, and the shape of the guide block (2511) is in the shape of an I-beam that matches the shape of the guide groove on the outer wall of the guide plate (256).

8. The copper cap for a double-ended fuse tube according to claim 4, characterized in that: The shape of the protection plate (259) is compatible with the shape of the limiting plate (258) on the same side, and a surface of the protection plate (259) on a side away from the limiting plate (258) on the same side is provided with anti-slip patterns.

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