Fuse fixing special clamp and fuse mounting node

Abstract

A fuse fixing special clamp and a fuse installation node, the fuse fixing special clamp comprises a fuse, the two ends of the fuse are both provided with the fuse fixing special clamp, the fuse fixing special clamp comprises a metal clamping plate, the metal clamping plate comprises a first clamping plate, a second clamping plate and a third clamping plate which are sequentially connected in a bending manner, clamping grooves are formed in the side walls of the free ends of the first clamping plate and the third clamping plate; a blocking piece is connected to the metal clamping plate in a clamped mode, the two sides of the blocking piece are inserted into the clamping grooves respectively, a clamping space is defined by the first clamping plate, the second clamping plate, the third clamping plate and the blocking piece, and the fuse is inserted into the clamping space. According to the invention, the clamping stability of the special fixing clamp on the fuse can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical equipment fixtures, and particularly relates to a special clamp for fixing a fuse and a fuse installation node. Background Art

[0002] High-voltage current-limiting fuses are mainly installed on the high-voltage side of voltage transformers to play a role in short-circuit protection. At present, the common fixing method of fuses is to fix both ends of the fuse through metal clips. The existing metal clips for fuses adopt double-layer elastic clips, which ensure the strong elasticity of the clips. However, it is very laborious for workers to reinstall the fuse, and there may be a situation of improper manual installation. During operation, due to the vibration of the equipment, there is a risk of displacement and falling off of the fuse, which is likely to cause accidents. Content of the Utility Model

[0003] The utility model provides a special clamp for fixing a fuse and a fuse installation node to solve the problem that the existing fixture is prone to displacement or falling off.

[0004] To solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0005] On the one hand, the present application provides a special clamp for fixing a fuse, including a metal clamping plate. The metal clamping plate includes a first clamping plate, a second clamping plate and a third clamping plate which are sequentially bent and connected. The side walls of the free ends of the first clamping plate and the third clamping plate are both provided with clamping grooves.

[0006] A retaining piece is clamped on the metal clamping plate. The two sides of the retaining piece are respectively inserted into the clamping grooves. The first clamping plate, the second clamping plate, the third clamping plate and the retaining piece enclose a clamping space, and the fuse is inserted into the clamping space.

[0007] Further, the metal clamping plate includes an inner-layer metal clip and an outer-layer metal clip. The inner-layer metal clip is fixed to the inner wall of the outer-layer metal clip, and the side wall of the inner-layer metal clip is curved. When the fuse is inserted into the clamping space, the fuse abuts against the side wall of the inner-layer metal clip.

[0008] Further, a supporting plate is also fixed on the metal clamping plate. The supporting plate is perpendicular to the wall surface of the metal clamping plate. When the fuse is inserted into the clamping space, the end face of the fuse abuts against the supporting plate.

[0009] Further, an installation plate for installing the special fixing clamp to other equipment is fixed on the metal clamping plate, and anchoring holes are provided on the installation plate.

[0010] Further, the card slot includes a tapered slot and a break that communicate with each other. The break penetrates one side wall of the first clamping plate and the second clamping plate. The cross-sectional shape of the retaining piece matches the shape of the tapered slot, and the maximum cross-sectional width of the retaining piece is greater than the width of the break.

[0011] Further, the tapered slot gradually narrows in the direction away from the break, and the width of the narrowest part of the tapered slot is not greater than the width of the break.

[0012] Further, the retaining piece includes a main part and secondary parts provided at both ends of the main part. The secondary parts are bent with respect to the main part.

[0013] On the other hand, the present invention provides a fuse installation node, including a fuse. Fuse fixing special clips are provided at both ends of the fuse. After both ends of the fuse are respectively inserted into the clamping space, the end faces of both ends of the fuse are in close contact with the support plate. The fuse fixing special clips are fixed on the post insulator.

[0014] The present utility model can achieve the following beneficial effects:

[0015] 1. By adding a retaining piece at the opening of the metal clamping plate in the present application, the fuse cannot fall off from the opening, reducing the safety risk of equipment operation and reducing the occurrence of accidents.

[0016] 2. The support plate can support the fuse, making the fixing effect of the fixing special clip on the fuse in the present application better, and the fuse is not easily detached.

[0017] 3. By providing a tapered slot and a break that communicate with each other, and reasonably setting the cross-sectional shape of the baffle, the baffle can be more easily inserted into the tapered slot and is not easily pulled out from the tapered slot, improving the locking function at the opening of the special clip. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0019] Figure 1 is an overall structural schematic diagram of a fuse fixing special clip of the present utility model;

[0020] Figure 2 is a partial structural schematic diagram of a fuse fixing special clip of the present utility model;

[0021] Figure 3 is an overall structural schematic diagram of a fuse installation node of the present utility model.

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] 1. Metal splint; 11. First splint; 111. Tapered groove; 112. Fracture; 12. Second splint; 13. Third splint; 14. Inner metal clip; 15. Outer metal clip; 2. Retaining piece; 21. Main part; 22. Sub part; 3. Clamping space; 4. Support plate; 5. Mounting plate; 51. Anchoring hole;

[0024] 100. Fuse; 200. Post insulator. Specific embodiments

[0025] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. Embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0026] As Figure 1 and Figure 2 shown, a special clip for fixing a fuse includes a first splint 11, a second splint 12, and a third splint 13 connected in sequence. The first splint 11 and the second splint 12 are vertically arranged, the second splint 12 and the third splint 13 are vertically arranged, and the free ends of the first splint 11 and the third splint 13 are provided with clamping grooves, and the clamping grooves are opened inward from the long side side walls of the first splint 11 and the second splint 12.

[0027] The clamping groove includes a tapered groove 111 and a fracture 112 that communicate with each other, and the fracture 112 penetrates through one side wall of the first splint 11 and the second splint 12; a retaining piece 2 is arranged between the first splint 11 and the third splint 13, and both ends of the retaining piece 2 are respectively clamped in the two clamping grooves. Specifically, the cross-sectional shape of the retaining piece 2 matches the cross-sectional shape of the tapered groove 111, and the tapered groove 111 gradually narrows in the direction away from the fracture 112. In one embodiment, the cross-sectional shapes of the tapered groove 111 and the retaining piece 2 are both triangular; in addition, the maximum cross-sectional width of the retaining piece 2 is greater than the width of the fracture 112, and the minimum cross-sectional width of the retaining piece 2 is not greater than the width of the fracture 112. Therefore, when installing the retaining piece 2, the end with the minimum cross-sectional width of the retaining piece 2 can be inserted from the fracture 112. Since the minimum cross-sectional width of the retaining piece 2 is less than or equal to the width of the fracture 112, the retaining piece 2 can be relatively easily inserted into the fracture 112; pushing the retaining piece 2 towards the tapered groove 111, under the guiding action of the inclined surfaces on both sides of the retaining piece 2, the structures of the retaining piece 2 on both sides of the fracture 112 are squeezed, so that the fracture 112 expands until the retaining piece 2 is clamped into the tapered groove 111. At this time, the retaining piece 2 restores its deformation, realizing the installation of the retaining piece 2.

[0028] In a preferred embodiment, the width of the fracture 112 ≤ 1 / 3 of the maximum cross-sectional width of the retaining piece 2, where the maximum cross-sectional width of the retaining piece 2 = the width at the widest part of the tapered groove 111, thereby enabling the tapered groove 111 to have a better clamping effect on the retaining piece 2.

[0029] The retaining piece 2 includes a main portion 21 and secondary portions 22 provided at both ends of the main portion 21. The secondary portions 22 are perpendicularly bent with respect to the main portion 21. Thus, after the retaining piece 2 is clamped between the first clamping plate 11 and the second clamping plate 12, the retaining piece 2 is not easily slipped out left and right, and has strong stability. When it is necessary to remove the fuse 100, use pliers to flatten the secondary portions 22 at both ends of the retaining piece 2, and then pull out the retaining piece 2 from the left and right sides, and the fuse 100 can be taken out, which is convenient for installation and disassembly.

[0030] After the retaining piece 2 is installed, the retaining piece 2, the first clamping plate 11, the second clamping plate 12, and the third clamping plate 13 together enclose a closed clamping space 3. When installing the fuse 100, insert the fuse 100 into the clamping space 3, and the clamping of the fuse 100 can be achieved.

[0031] Further, the metal clamping plate 1 further includes an inner metal clip 14 and an outer metal clip 15. The inner metal clip 14 is fixed to the inner wall of the outer metal clip 15, and the side wall of the inner metal clip 14 is curved. By reasonably setting the bending radian of the inner metal clip 14, when the fuse 100 is inserted into the clamping space 3, the fuse 100 abuts against the side wall of the inner metal clip 14, further improving the clamping stability of the fuse 100 by the fixing special clip of the present application.

[0032] A support plate 4 and a mounting plate 5 are also fixed on the metal clamping plate 1. The support plate 4 is perpendicularly arranged with respect to the wall surface of the metal clamping plate 1, and when the fuse 100 is inserted into the clamping space 3, the end faces at both ends of the fuse 100 abut against the support plate 4; the mounting plate 5 is used to mount the fixing special clip to other devices, and an anchoring hole 51 is provided on the mounting plate 5.

[0033] A fuse installation node, as Figure 3 shown, includes a fuse 100. Both ends of the fuse 100 are provided with the above-mentioned fuse fixing special clips, and each fuse fixing special clip is fixed on a post insulator 200 through the mounting plate 5. Both ends of the fuse 100 are respectively inserted into the clamping spaces 3 of the two fuse fixing special clips, and the inner metal clip 14 clamps the fuse 100, and the end faces at both ends of the fuse 100 abut against the support plate 4.

[0034] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A special clip for fixing a fuse, characterized in that: It includes a metal clamping plate (1), and the metal clamping plate (1) includes a first clamping plate (11), a second clamping plate (12) and a third clamping plate (13) which are sequentially bent and connected. Card slots are provided on the side walls of the free ends of the first clamping plate (11) and the third clamping plate (13). A retaining piece (2) is clamped on the metal clamping plate (1). The two sides of the retaining piece (2) are respectively inserted into the card slots. A clamping space (3) is formed by enclosing the first clamping plate (11), the second clamping plate (12), the third clamping plate (13) and the retaining piece (2). A fuse (100) is inserted into the clamping space (3).

2. The special clip for fixing a fuse according to claim 1, wherein: The metal clamping plate (1) includes an inner metal clip (14) and an outer metal clip (15). The inner metal clip (14) is fixed to the inner wall of the outer metal clip (15), and the side wall of the inner metal clip (14) is curved. When the fuse (100) is inserted into the clamping space (3), the fuse (100) abuts against the side wall of the inner metal clip (14).

3. The special clip for fixing a fuse according to claim 1, characterized in that: A support plate (4) is also fixed on the metal clamping plate (1). The support plate (4) is arranged perpendicular to the wall surface of the metal clamping plate (1). When the fuse (100) is inserted into the clamping space (3), the end face of the fuse (100) abuts against the support plate (4).

4. A special clip for fixing a fuse according to claim 1, characterized in that: An installation plate (5) for installing the special fixing clip to other equipment is fixed on the metal clamping plate (1), and an anchoring hole (51) is provided on the installation plate (5).

5. The special clip for fixing a fuse according to claim 1, characterized in that: The card slot includes a tapered slot (111) and a break (112) that communicate with each other. The break (112) penetrates through one side wall of the first clamping plate (11) and the second clamping plate (12). The cross-sectional shape of the retaining piece (2) matches the shape of the tapered slot (111), and the maximum cross-sectional width of the retaining piece (2) is greater than the width of the break (112).

6. The special clip for fixing a fuse according to claim 5, wherein: The tapered slot (111) gradually narrows in the direction away from the break (112), and the width of the narrowest part of the tapered slot (111) is not greater than the width of the break (112).

7. The special clip for fixing a fuse according to claim 1, characterized in that: The retaining piece (2) includes a main part (21) and secondary parts (22) provided at both ends of the main part (21). The secondary parts (22) are bent with respect to the main part (21).

8. A fuse installation node, comprising a fuse (100), characterized in that: Both ends of the fuse (100) are provided with the special fixing clip for the fuse as described in any one of claims 1-7. After the two ends of the fuse (100) are respectively inserted into the clamping space (3), the end faces at both ends of the fuse (100) abut against the support plate (4), and the special fixing clip for the fuse is fixed on the post insulator (200).

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