Fuse contact fastening device

Abstract

The utility model provides a fuse contact fastening device, which relates to the technical field of fuses and comprises a contact connecting frame, a fastening assembly is arranged on the inner side of the contact connecting frame and comprises a connecting table arranged at the bottom end of the inner side of the contact connecting frame, a connecting hole is formed in the top end of the contact connecting frame, and the connecting table is connected with the contact connecting frame. The inner side of the connecting hole is in threaded connection with an extrusion screw rod, the lower side of the extrusion screw rod is provided with a connecting plate, the lower side of the connecting plate is provided with a fastening clamping piece, and the fastening clamping piece can be folded along a connecting table due to the fact that the connecting table is of an arc-shaped structure through the arranged fastening assembly, so that the fuse contact is wrapped and clamped; meanwhile, the fastening clamping pieces can deform in the folding process so as to be better attached to the fuse contact, the fastening effect is improved, through the design of the three pieces of fastening clamping pieces which are meshed with one another, the clamping pieces can support one another and evenly distribute clamping force in the clamping process, and the clamping effect is further enhanced.

Description

A fuse contact fastening device Technical Field

[0001] This utility model relates to the field of fuse technology, and in particular to a fuse contact fastening device. Background Technology

[0002] A fuse is an electrical device that uses a metal conductor as a fusible element connected in series in a circuit. When an overload or short-circuit current passes through the fusible element, it melts due to its own heating, thereby breaking the circuit. Fuses have a simple structure, are easy to use, and are widely used as protective devices in power systems, various electrical equipment, and household appliances.

[0003] A search revealed that the document with publication number "CN220085956U" mentions "This disclosure relates to a fuse contact fastening device, comprising: a support; a transmission gear mounted on the support; a clamping arm movably connected to the support, the clamping arm including a transmission part and a clamping part, the transmission part having teeth formed for meshing with the transmission gear, the clamping part being configured to approach or move away from the support to clamp the fuse contact between the clamping part and the support; and a locking assembly mounted on the support for locking the transmission gear." In use, by rotating the transmission gear to control the stroke of the clamping arm, the clamping arm can extend and retract relative to the support, thereby clamping or releasing the fuse contact. The locking assembly restricts the movement of the clamping arm, preventing the fuse contact from falling off due to vibration and causing an accident.

[0004] However, existing fuse contact fixing methods typically use metal sheets for pressing and fixing, but this method is prone to loosening. While the device in the above solution can avoid loosening, when fixing two sets of fuse contacts of different sizes, it is easy to cause the smaller contact to be difficult to be completely tightened, affecting the normal use of the fuse.

[0005] Therefore, we provide a fuse contact fastening device to solve the above problems. Summary of the Invention

[0006] To overcome the above deficiencies, this utility model provides a fuse contact fastening device, which aims to solve the problems mentioned above.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A fuse contact fastening device includes a contact connecting frame, a fastening assembly on the inner side of the contact connecting frame, the fastening assembly including a connecting platform installed at the bottom of the inner side of the contact connecting frame, a connecting hole at the top of the contact connecting frame, a pressing screw threaded to the inner side of the connecting hole, a connecting plate on the lower side of the pressing screw, and a fastening clamp on the lower side of the connecting plate.

[0009] As a further description of the above technical solution:

[0010] The extrusion screw is rotatably connected to the connecting plate, and the fastening clip is welded to the connecting plate. There are three sets of fastening clips, and the fastening clips are made of copper.

[0011] As a further description of the above technical solution:

[0012] The bottom surface of the fastening clip is in contact with the surface of the connecting platform, which has an arc-shaped structure, and the thickness of the fastening clip is one millimeter.

[0013] As a further description of the above technical solution:

[0014] The fastening clip has a three-piece interlocking structure, and the inner surface of the fastening clip is uniformly provided with inclined grooves.

[0015] As a further description of the above technical solution:

[0016] Connecting sliders are welded to the left and right ends of the connecting plate, and limiting slide rods are provided on the left and right sides inside the contact connecting frame. The connecting sliders and the limiting slide rods are slidably connected.

[0017] As a further description of the above technical solution:

[0018] A support spring is provided on the outer side of the connecting slider, and the top of the support spring is fixedly connected to the top of the inner side of the contact connecting frame.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] With the fastening components in place, the arc-shaped structure of the connecting platform allows the fastening clips to retract along the platform, thereby wrapping and clamping the fuse contacts. At the same time, the fastening clips can deform during the retraction process to better fit the fuse contacts, improving the fastening effect. Furthermore, the three-piece interlocking fastening clip design allows each clip to support each other and evenly distribute the clamping force during the clamping process, further enhancing the clamping effect.

[0021] By sliding the connecting slider on the limit slide rod, the stable movement of the connecting plate and the fastening clip is ensured, which ensures the accuracy of clamping the fuse contacts and the stability after clamping. After clamping, the supporting spring continuously presses down on the connecting slider to ensure the stability of the fuse contacts during long-term use. Attached Figure Description

[0022] Figure 1 is a schematic diagram of the overall appearance structure of this utility model;

[0023] Figure 2 is a schematic diagram of the fastening clip retraction structure of this utility model;

[0024] Figure 3 is a schematic diagram of the fastening clip structure of this utility model;

[0025] Figure 4 is an enlarged structural schematic diagram of point A in Figure 1 of this utility model.

[0026] The following are the labels in the diagram: 1. Contact connection frame; 2. Fastening assembly; 201. Connecting platform; 202. Connecting hole; 203. Extrusion screw; 204. Connecting plate; 205. Fastening clamp; 206. Connecting slider; 207. Limiting slide bar; 208. Support spring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please refer to Figures 1-4. This utility model provides a technical solution: a fuse contact fastening device, including a contact connecting frame 1, a fastening component 2 is provided on the inner side of the contact connecting frame 1, the fastening component 2 includes a connecting platform 201 installed at the bottom of the inner side of the contact connecting frame 1, a connecting hole 202 is provided at the top of the contact connecting frame 1, a pressing screw 203 is threadedly connected to the inner side of the connecting hole 202, a connecting plate 204 is provided on the lower side of the pressing screw 203, and a fastening clamp 205 is installed on the lower side of the connecting plate 204.

[0029] Furthermore, the extrusion screw 203 and the connecting plate 204 are rotatably connected, and the fastening clamp 205 and the connecting plate 204 are welded. There are three sets of fastening clamps 205. The fastening clamps 205 are made of copper sheet. In use, the fuse contacts that need to be fastened are placed on the connecting platform 201, and then the extrusion screw 203 is turned to press down the fastening clamps 205 to clamp and fix the contacts.

[0030] Furthermore, the bottom surface of the fastening clip 205 is in contact with the surface of the connecting platform 201. The connecting platform 201 has an arc-shaped structure, and the thickness of the fastening clip 205 is one millimeter. During the pressing down of the fastening clip 205, the arc-shaped structure of the connecting platform 201 allows the fastening clip 205 to retract along the connecting platform 201, thereby wrapping and clamping the fuse contact. At the same time, the fastening clip 205 can deform during the retraction process, thus fitting the fuse contact more closely and improving the fastening effect.

[0031] Furthermore, the fastening clip 205 has a three-piece interlocking structure. The inner surface of the fastening clip 205 is evenly provided with inclined grooves. Through the design of the three-piece interlocking fastening clip 205, the clips can support each other and distribute the clamping force evenly during the clamping process, which further enhances the clamping effect. At the same time, the inclined grooves on the inner surface can not only increase the friction with the fuse contacts and improve the stability of clamping, but also guide the clips to gradually retract during the clamping process, ensuring that the contacts are evenly and firmly clamped.

[0032] Furthermore, connecting sliders 206 are welded to the left and right ends of the connecting plate 204, and limiting slide rods 207 are provided on the left and right sides inside the contact connecting frame 1. The connecting sliders 206 and the limiting slide rods 207 are slidably connected. By sliding the connecting sliders 206 on the limiting slide rods 207, the stable movement of the connecting plate 204 and the fastening clips 205 is ensured, thus ensuring the accuracy of clamping the fuse contacts and the stability after clamping.

[0033] Furthermore, a support spring 208 is provided on the outer side of the connecting slider 206. The top of the support spring 208 is fixedly connected to the top of the inner side of the contact connecting frame 1. After clamping, the support spring 208 continuously presses down on the connecting slider 206 to ensure the stability of the fuse contacts during long-term use.

[0034] Working principle: Move the device to the working position, place the fuse contacts to be fastened on the connecting platform 201, and then rotate the pressing screw 203, causing it to gradually descend along the connecting hole 202. The rotational motion of the pressing screw 203 is converted into linear motion, pushing the connecting plate 204 and the fastening clamp 205 below it downwards. As the fastening clamp 205 is gradually pressed down, due to the arc-shaped structure of the connecting platform 201, the fastening clamp 205 will deform under pressure, moving along the connecting platform 201. The arc-shaped surface gradually converges, thereby achieving the wrapping and clamping of the fuse contacts. At the same time, since the fastening clips 205 have a three-piece interlocking structure and the inner surface is evenly provided with inclined grooves, the clips can support each other and distribute the clamping force evenly during the clamping process. The support spring 208 on the outside of the connecting slider 206 continuously presses down on the connecting slider 206, further ensuring the stability of the fuse contacts during long-term use. This completes the use process of a fuse contact fastening device.

[0035] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fuse contact fastening device, comprising a contact connecting frame (1), characterized in that: The inner side of the contact connection frame (1) is provided with a fastening assembly (2). The fastening assembly (2) includes a connecting platform (201) installed at the bottom of the inner side of the contact connection frame (1). The top of the contact connection frame (1) is provided with a connecting hole (202). The inner side of the connecting hole (202) is threaded with a pressing screw (203). The lower side of the pressing screw (203) is provided with a connecting plate (204). The lower side of the connecting plate (204) is provided with a fastening clip (205).

2. The fuse contact fastening device according to claim 1, characterized in that, The extrusion screw (203) is rotatably connected to the connecting plate (204), and the fastening clip (205) is welded to the connecting plate (204). There are three sets of fastening clips (205), and the fastening clips (205) are made of copper sheet.

3. The fuse contact fastening device according to claim 1, characterized in that, The bottom surface of the fastening clip (205) is in contact with the surface of the connecting platform (201), the connecting platform (201) has an arc-shaped structure, and the thickness of the fastening clip (205) is one millimeter.

4. The fuse contact fastening device according to claim 1, characterized in that, The fastening clip (205) has a three-piece interlocking structure, and the inner surface of the fastening clip (205) is uniformly provided with inclined grooves.

5. A fuse contact fastening device according to claim 1, characterized in that, The connecting plate (204) has connecting sliders (206) welded to its left and right ends. The contact connecting frame (1) has limit slides (207) on its left and right sides inside. The connecting sliders (206) and the limit slides (207) are slidably connected.

6. The fuse contact fastening device according to claim 5, characterized in that, A support spring (208) is provided on the outside of the connecting slider (206), and the top end of the support spring (208) is fixedly connected to the top end of the inner side of the contact connecting frame (1).

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