Buckle device convenient for assembling and disassembling 10kV fuse in cabinet

Abstract

The utility model belongs to the technical field of fuse mounting devices, and particularly relates to a buckle device convenient for mounting and dismounting a 10kV fuse in a cabinet. According to the technical scheme, the buckle device convenient to assemble and disassemble the 10kV fuse in the cabinet comprises a connecting structure installed in the cabinet, the connecting structure is electrically connected with a conductive loop in the cabinet, a fixing ring is connected to the connecting structure, an opening is formed in the fixing ring, and a first connecting lug and a second connecting lug are arranged on the two sides of the opening of the fixing ring respectively. An adjusting screw rod is fixed to the supporting block and penetrates through the first connecting lug and the second connecting lug, a cam is rotationally connected to the supporting block, a handle is arranged on the cam, the surface of the cam makes contact with the first connecting lug, and an adjusting nut is connected to the adjusting screw rod in a threaded mode. The cam, the first connecting lug, the second connecting lug and the adjusting nut are sequentially arranged, and the mounting part of the fuse is mounted in the fixing ring. The utility model provides a buckle device convenient for assembling and disassembling a 10kV fuse in a cabinet.

Description

Technical Field

[0001] This utility model belongs to the technical field of fuse installation devices, and specifically relates to a snap-fit ​​device that facilitates the installation and removal of 10kV fuses inside cabinets. Background Technology

[0002] Currently, most indoor 10kV fuses are fixed using a clamping method with elastic metal strips at both ends. During installation, the fuse is pressed forcefully between the elastic metal strips, and to remove it, force is required to pull the fuse out of the elastic metal strips. This existing clamping method makes fuse installation and removal extremely inconvenient, time-consuming, and labor-intensive, especially when operating with insulated gloves. Furthermore, it presents the following problems: the clamping force of the metal strips is unreliable, potentially leading to metal fatigue; the small contact area between the fuse and the metal strips may result in poor contact between the fuse and the conductive circuit; and directly pressing or pulling the fuse in during installation or removal causes direct friction between the fuse ends and the elastic metal strips, easily leading to wear and damage at both ends of the fuse. Utility Model Content

[0003] In order to solve the above-mentioned problems in the existing technology, the purpose of this utility model is to provide a clip device that facilitates the installation and removal of 10kV fuses in cabinets.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A snap-fit ​​device for facilitating the installation and removal of a 10kV fuse inside a cabinet includes a connection structure installed inside the cabinet, the connection structure being electrically connected to a conductive circuit inside the cabinet, a fixing ring connected to the connection structure, an opening on the fixing ring, a first connecting lug and a second connecting lug respectively provided on both sides of the opening of the fixing ring, a support block, an adjusting screw fixed on the support block, the adjusting screw passing through the first connecting lug and the second connecting lug, a cam rotatably connected to the support block, a handle provided on the cam, the cam surface contacting the first connecting lug, an adjusting nut threaded onto the adjusting screw, the cam, the first connecting lug, the second connecting lug and the adjusting nut being arranged sequentially, and the installation part of the fuse being inserted into the fixing ring.

[0006] The connection structure of this utility model is fixedly connected inside the cabinet and electrically connected to the conductive circuit, thus providing stable support for the fixing ring. The mounting portion of the fuse is inserted into the fixing ring, and the handle is pulled downwards. The first connecting lug gradually transitions from contact with the thin edge of the cam to contact with the thick edge of the cam, thereby pressing the first connecting lug towards the second connecting lug. The adjusting nut limits the second connecting lug away from the first connecting lug, thus shortening the distance between the first and second connecting lugs, and reliably locking the fixing ring onto the mounting portion of the fuse. Tightening the adjusting nut further allows for fine-tuning of the distance between the first and second connecting lugs, thereby fine-tuning the degree of fuse locking.

[0007] This invention facilitates the installation and removal of fuses; simply turning the handle allows for tightening or loosening the fuse. After the retaining ring is tightened into the fuse's mounting portion, the two reliably contact the inner wall of the retaining ring, preventing poor contact between the fuse and the conductive circuit. During installation and removal, the fuse can be directly pressed in or pulled out without sliding or rubbing against the locking device, thus preventing wear and damage to the fuse.

[0008] In a preferred embodiment of this invention, both the connecting structure and the fixing ring are made of conductive materials. The connecting structure is welded inside the cabinet to ensure its stability. Since both the connecting structure and the fixing ring are made of conductive materials, after the fuse is installed, the fuse is reliably electrically connected to the conductive circuit inside the cabinet.

[0009] In a preferred embodiment of this invention, a washer is provided on the side of the adjusting nut near the second connecting lug. When the washer contacts the second connecting lug, it reliably limits the position of the second connecting lug.

[0010] As a preferred embodiment of this utility model, the adjusting nut is cylindrical, and the surface of the adjusting nut is provided with anti-slip teeth.

[0011] As a preferred embodiment of this utility model, the area where the first connecting ear contacts the cam is a concave arc shape. The arc surface of the first connecting ear contacts the cam, increasing the contact area and ensuring that the cam stably pushes the first connecting ear to move.

[0012] As a preferred embodiment of this utility model, when the handle is rotated away from the connecting structure, the thinnest part of the cam contacts the first connecting ear; when the handle is rotated close to the connecting structure, the thickest part of the cam contacts the first connecting ear.

[0013] As a preferred embodiment of this utility model, the side of the handle near the fixing ring is the locking side, and the locking side is concave arc-shaped; when the thickest part of the cam contacts the first connecting ear, the locking side is in contact with the surface of the fixing ring. When the fixing ring is locked to the mounting part of the fuse, the locking side of the handle engages with the surface of the fixing ring, which locks the cam and prevents the fixing ring from loosening.

[0014] In a preferred embodiment of this invention, both the through holes of the first and second connecting ears have gaps between them and the adjusting screw. This prevents the adjusting screw from contacting the first and second connecting ears, thus avoiding damage to the threads on the adjusting screw.

[0015] As a preferred embodiment of this utility model, the transition area between the fixing ring and the first connecting ear and the second connecting ear is thickened.

[0016] As a preferred embodiment of this utility model, the connection between the fixing ring and the connecting structure is thickened.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention facilitates the installation and removal of fuses; simply turning the handle allows for tightening or loosening the fuse. After the retaining ring is tightened into the fuse's mounting portion, the two reliably contact the inner wall of the retaining ring, preventing poor contact between the fuse and the conductive circuit. During installation and removal, the fuse can be directly pressed in or pulled out without sliding or rubbing against the locking device, thus preventing wear and damage to the fuse. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] In the diagram: 1-Connecting structure; 2-Fixing ring; 3-First connecting ear; 4-Second connecting ear; 5-Support block; 6-Adjusting screw; 7-Cam; 8-Handle; 9-Adjusting nut; 81-Locking side; 91-Washer; 92-Anti-slip teeth. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other.

[0023] like Figure 1As shown, the snap-fit ​​device for facilitating the installation and removal of the 10kV fuse in the cabinet in this embodiment includes a connection structure 1 installed in the cabinet. The connection structure 1 is electrically connected to the conductive circuit in the cabinet. A fixing ring 2 is connected to the connection structure 1. The fixing ring 2 has an opening. A first connecting ear 3 and a second connecting ear 4 are respectively provided on both sides of the opening of the fixing ring 2. It also includes a support block 5. An adjusting screw 6 is fixed on the support block 5. The adjusting screw 6 passes through the first connecting ear 3 and the second connecting ear 4. A cam 7 is rotatably connected to the support block 5. A handle 8 is provided on the cam 7. The surface of the cam 7 contacts the first connecting ear 3. An adjusting nut 9 is threadedly connected to the adjusting screw 6. The cam 7, the first connecting ear 3, the second connecting ear 4 and the adjusting nut 9 are arranged in sequence. The installation part of the fuse is installed in the fixing ring 2.

[0024] The connection structure 1 of this utility model is fixedly connected inside the cabinet and electrically connected to the conductive circuit, thereby providing stable support for the fixing ring 2. The mounting part of the fuse is inserted into the fixing ring 2, and the handle 8 is pulled downwards. The first connecting ear 3 gradually transitions from contact with the thin edge of the cam 7 to contact with the thick edge of the cam 7, thus pressing the first connecting ear 3 towards the second connecting ear 4. The adjusting nut 9 limits the second connecting ear 4 away from the first connecting ear 3, thereby shortening the distance between the first connecting ear 3 and the second connecting ear 4, and reliably locking the fixing ring 2 onto the mounting part of the fuse. Tightening the adjusting nut 9 further allows for fine adjustment of the distance between the first connecting ear 3 and the second connecting ear 4, thereby fine-tuning the tightness of the fuse.

[0025] This invention facilitates the installation and removal of the fuse; simply turning handle 8 allows for tightening or loosening of the fuse. After the retaining ring 2 is tightened against the fuse's mounting portion, the two reliably contact the inner wall of the retaining ring 2, preventing poor contact between the fuse and the conductive circuit. During installation and removal, the fuse can be directly pressed in or pulled out without sliding or rubbing against the locking device, thus preventing wear and damage to the fuse.

[0026] Both the connecting structure 1 and the fixing ring 2 are made of conductive materials. The connecting structure 1 is welded inside the cabinet to ensure its stability. Since both the connecting structure 1 and the fixing ring 2 are made of conductive materials, after the fuse is installed, the fuse is reliably electrically connected to the conductive circuit inside the cabinet.

[0027] A washer 91 is provided on the side of the adjusting nut 9 near the second connecting lug 4. When the washer 91 contacts the second connecting lug 4, it reliably limits the position of the second connecting lug 4.

[0028] The adjusting nut 9 is cylindrical, and anti-slip teeth 92 are provided on the surface of the adjusting nut 9.

[0029] The area where the first connecting ear 3 contacts the cam 7 is a concave arc shape. The arc surface of the first connecting ear 3 contacts the cam 7, which increases the contact area and ensures that the cam 7 stably pushes the first connecting ear 3 to move.

[0030] Specifically, when the handle 8 is rotated away from the connecting structure 1, the thinnest part of the cam 7 contacts the first connecting ear 3; when the handle 8 is rotated close to the connecting structure 1, the thickest part of the cam 7 contacts the first connecting ear 3.

[0031] Furthermore, the side of the handle 8 closest to the fixing ring 2 is a locking side 81, which is a concave arc shape. When the thickest part of the cam 7 contacts the first connecting ear 3, the locking side 81 fits against the surface of the fixing ring 2. When the fixing ring 2 is locked to the fuse mounting position, the locking side 81 of the handle 8 engages with the surface of the fixing ring 2, locking the cam 7 and preventing the fixing ring 2 from loosening.

[0032] Both the through holes of the first connecting lug 3 and the second connecting lug 4 have gaps between them and the adjusting screw 6. The adjusting screw 6 does not contact the first connecting lug 3 or the second connecting lug 4, thus avoiding damage to the threads on the adjusting screw 6.

[0033] The transition area between the fixing ring 2 and the first connecting ear 3 and the second connecting ear 4 is thickened.

[0034] The connection between the fixing ring 2 and the connecting structure 1 is thickened.

[0035] This utility model is not limited to the above-mentioned optional embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in its shape or structure, any technical solution that falls within the scope of the claims of this utility model shall be protected by this utility model.

Claims

1. A buckle device for facilitating the assembly and disassembly of a 10 kV fuse in a cabinet, characterized in that: The device includes a connection structure (1) installed in the cabinet, which is electrically connected to the conductive circuit in the cabinet. A fixing ring (2) is connected to the connection structure (1). An opening is provided on the fixing ring (2). A first connecting ear (3) and a second connecting ear (4) are respectively provided on both sides of the opening of the fixing ring (2). The device also includes a support block (5). An adjusting screw (6) is fixed on the support block (5). The adjusting screw (6) passes through the first connecting ear (3) and the second connecting ear (4). A cam (7) is rotatably connected to the support block (5). A handle (8) is provided on the cam (7). The surface of the cam (7) contacts the first connecting ear (3). An adjusting nut (9) is threaded on the adjusting screw (6). The cam (7), the first connecting ear (3), the second connecting ear (4) and the adjusting nut (9) are arranged in sequence. The installation part of the fuse is inserted into the fixing ring (2).

2. The buckle device for facilitating the mounting and dismounting of the 10kV fuse in the cabinet according to claim 1, characterized in that: Both the connecting structure (1) and the fixing ring (2) are made of conductive materials.

3. The buckle device for facilitating the mounting and dismounting of the 10kV fuse in the cabinet according to claim 1, characterized in that: A washer (91) is provided on the side of the adjusting nut (9) near the second connecting lug (4).

4. The snap-fit ​​device for facilitating the installation and removal of a 10kV fuse inside a cabinet according to claim 1, characterized in that: The adjusting nut (9) is cylindrical, and the surface of the adjusting nut (9) is provided with anti-slip teeth (92).

5. The buckle device for facilitating the mounting and dismounting of the 10 kV fuse in the cabinet according to claim 1, characterized in that: The area where the first connecting ear (3) contacts the cam (7) is a concave arc shape.

6. The buckle device for facilitating the mounting and dismounting of the 10 kV fuse in the cabinet according to claim 1, characterized in that: When the handle (8) is rotated away from the connecting structure (1), the thinnest part of the cam (7) contacts the first connecting ear (3); when the handle (8) is rotated close to the connecting structure (1), the thickest part of the cam (7) contacts the first connecting ear (3).

7. The buckle device for facilitating the mounting and dismounting of the 10 kV fuse in the cabinet according to claim 6, characterized in that: The side of the handle (8) closest to the fixing ring (2) is the locking side (81), and the locking side (81) is a concave arc shape; when the thickest part of the cam (7) contacts the first connecting ear (3), the locking side (81) is in contact with the surface of the fixing ring (2).

8. The buckle device for facilitating the mounting and dismounting of the 10 kV fuse in the cabinet according to claim 1, characterized in that: The through holes of the first connecting ear (3) and the second connecting ear (4) both have gaps with the adjusting screw (6).

9. The buckle device for facilitating the mounting and dismounting of the 10 kV fuse in the cabinet according to claim 1, characterized in that: The transition area between the fixing ring (2) and the first connecting ear (3) and the second connecting ear (4) is thickened.

10. The buckle device for facilitating the mounting and dismounting of the 10 kV fuse in the cabinet according to claim 1, characterized in that: The connection between the fixing ring (2) and the connecting structure (1) is thickened.

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