Fuse wire taking-out device of box-type transformer

Abstract

The utility model relates to a fuse taking-out device of a box-type transformer, which comprises a first sub-rod, a second sub-rod, a connecting seat, a sliding rod and a connecting piece, and is characterized in that one end of the first sub-rod in the length direction is hinged with one end of the second sub-rod in the length direction; the other end of the first sub-rod in the length direction and the other end of the second sub-rod in the length direction are fixedly connected with clamping pieces correspondingly, the connecting base is slidably connected with the sliding rod, and the end, away from the connecting base, of the sliding rod is slidably connected with the first sub-rod and the second sub-rod. One end of the connecting piece is fixedly connected with the first sub-rod or the second sub-rod, and the other end of the connecting piece is fixedly connected with the connecting seat. The clamping piece drives the fuse wire to move towards the outside of the fuse wire cylinder, so that the convenience of taking out the fuse wire is improved, and the maintenance efficiency of the fuse wire is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of box-type transformers, and particularly relates to a fuse extraction device for a box-type transformer. Background Art

[0002] Generally, an insulating rod and a fuse are arranged in the fuse barrel on the high-voltage side of a box transformer. The two are locked by bolts. After locking, the fuse can be pushed into the fuse barrel through the insulating rod. When it is necessary to check the fuse, the fuse can be pulled out through the insulating rod, which is convenient for checking the oil leakage inside the fuse barrel and the continuity of the fuse.

[0003] However, the concave and convex parts of the fuse connection are designed shallower by most manufacturers. This causes that if the bolts are not firmly fixed or the insulating rod is damaged, it is very easy for the fuse and the insulating rod to become separated, and the fuse is stuck in the narrow fuse barrel and cannot be taken out, thus making it impossible to check the continuity of the fuse and the oil leakage of the fuse barrel, which affects the work efficiency. Content of the Utility Model

[0004] In order to improve the convenience of fuse extraction and the maintenance efficiency of the fuse, the present application provides a fuse extraction device for a box-type transformer.

[0005] The present application provides a fuse extraction device for a box-type transformer, including a first sub-rod, a second sub-rod, a connecting seat, a sliding rod and a connecting member. One end in the length direction of the first sub-rod is hinged to one end in the length direction of the second sub-rod. Clamping members are respectively fixedly connected to the other end in the length direction of the first sub-rod and the other end in the length direction of the second sub-rod. The connecting seat is slidably connected to the sliding rod. The end of the sliding rod far from the connecting seat is slidably connected to the first sub-rod and the second sub-rod. One end of the connecting member is fixedly connected to the first sub-rod or the second sub-rod, and the other end is fixedly connected to the connecting seat.

[0006] The beneficial effect of the utility model is that after the clamping member moves to the concave and convex part of the fuse, the user can pull the connecting seat out of the fuse barrel. The connecting seat pulls the first sub-rod and the second sub-rod to close through the connecting member, and the sliding rod slides along the connecting seat in a direction away from the fuse, so that the clamping member is clamped to the concave and convex part of the fuse. The user can continue to pull the connecting seat, so that the clamping member drives the fuse to move out of the fuse barrel, thereby improving the convenience of fuse extraction and the maintenance efficiency of the fuse.

[0007] Further, slideways are respectively arranged on the first sub-rod and the second sub-rod. The sliding rod includes a third sub-rod and a fourth sub-rod arranged in parallel. One end of the third sub-rod close to the connecting seat is fixedly connected to one end of the fourth sub-rod close to the connecting seat. Sliders are respectively fixedly connected to the end of the third sub-rod far from the connecting seat and the end of the fourth sub-rod far from the connecting seat. The two sliders are respectively slidably connected to the corresponding slideways.

[0008] The beneficial effects of adopting the above further solution are as follows: When the slider slides along the slideway, the slider can drive the slide bar to slide along the connecting seat, thereby improving the stability of the slider's sliding.

[0009] Furthermore, the clamping member is a semi-circular clip.

[0010] The beneficial effects of adopting the above further solution are as follows: The clip corresponding to the first sub-bar and the clip corresponding to the second sub-bar can form a hoop structure, improving the convenience of clamping with the concave and convex parts of the fuse.

[0011] Furthermore, the longitudinal section of the clip is a right triangle, and the acute angle in the triangle abuts against the concave and convex parts of the fuse, and the right angle in the triangle is located on the side of the clip close to the connecting seat.

[0012] The beneficial effects of adopting the above further solution are as follows: The clip corresponding to the first sub-bar and the clip corresponding to the second sub-bar can accurately match the concave and convex parts of the fuse, forming stable contact points, which helps to reduce sliding and deviation during the clamping process and improves the stability of clamping.

[0013] Furthermore, the connecting member is a spring. One end of the spring in the length direction is fixedly connected to the connecting seat, and the other end of the spring in the length direction is fixedly connected to the third sub-bar or the fourth sub-bar.

[0014] The beneficial effects of adopting the above further solution are as follows: When the user pulls the connecting seat out of the fuse barrel, the spring will be stretched and generate an elastic force. This elastic force acts on the first sub-bar and the second sub-bar, prompting them to close towards the center. Due to the elastic characteristics of the spring, it can automatically adjust the clamping force according to the shape and size of the concave and convex parts of the fuse, ensuring that the clamping member can be tightly clamped on the concave and convex parts of the fuse, thereby achieving the locking effect.

[0015] Furthermore, the slide bar further includes a cross bar and a fifth sub-bar. The third sub-bar and the fourth sub-bar are respectively fixedly connected to the cross bar, and the fifth sub-bar is fixedly connected to the cross bar;

[0016] The connecting seat includes a first connecting plate and a second connecting plate. Both the first connecting plate and the second connecting plate include a first sub-plate and a second sub-plate. The first sub-plate and the second sub-plate are integrally formed. The thickness of the first sub-plate is less than the thickness of the second sub-plate, and a chute is provided in the second sub-plate;

[0017] After the first connecting plate and the second connecting plate are buckled, a space is formed between the first sub-plate of the first connecting plate and the first sub-plate of the second connecting plate, and the third sub-rod, the fourth sub-rod and the cross-bar are located in this space and slide along this space; a through groove is formed by the sliding groove corresponding to the second sub-plate of the first connecting plate and the sliding groove corresponding to the second sub-plate of the second connecting plate, and the fifth sub-rod is located in this through groove and slides along this through groove.

[0018] The beneficial effect of adopting the above further scheme is that the sliding of the sliding rod can be limited through the connecting seat, and the stability of the sliding rod sliding along the connecting seat is improved.

[0019] Further, the first sub-plates of the first connecting plate and the second connecting plate are both triangular plates, and one corner of the first sub-plate is fixedly connected to the spring.

[0020] The beneficial effect of adopting the above further scheme is that by fixedly connecting the spring to one corner of the triangular plate, the pulling force or pushing force of the triangular plate can be more effectively transmitted to the spring.

[0021] Further, a plurality of fixing bolts are connected between the first connecting plate and the second connecting plate.

[0022] The beneficial effect of adopting the above further scheme is that the convenience of connecting the first connecting plate and the second connecting plate is improved.

[0023] Further, the plurality of fixing bolts are respectively distributed along the circumferences of the first connecting plate and the second connecting plate.

[0024] The beneficial effect of adopting the above further scheme is that the stability of connecting the first connecting plate and the second connecting plate is improved.

[0025] Further, a handle is fixedly connected to the end face of the connecting seat away from the clamping member.

[0026] The beneficial effect of adopting the above further scheme is that when it is necessary to take out the fuse from the fuse cartridge, the user can push or pull the connecting seat through the handle, which improves the convenience of operation. Description of the Drawings

[0027] Figure 1 It is a schematic structural diagram of the fuse removal device of the box-type transformer according to the embodiment of the present application;

[0028] Figure 2 It is a schematic diagram showing the structure of the connecting rod according to the embodiment of the present application;

[0029] Figure 3 It is a schematic diagram showing the structure of the sliding rod according to the embodiment of the present application;

[0030] Figure 4Schematic diagram showing the structure of the first connecting plate or the second connecting plate in the embodiments of the present application.

[0031] In the drawings, the components represented by the reference numerals are listed as follows:

[0032] 1. Clamping member; 2. Connecting seat; 21. First connecting plate; 22. Second connecting plate; 23. First sub-plate; 24. Second sub-plate; 25. Slide groove; 26. Fixed bolt; 3. Slide rod; 31. Third sub-rod; 32. Fourth sub-rod; 33. Slide block; 34. Cross bar; 35. Fifth sub-rod; 4. Connecting rod; 41. First sub-rod; 42. Second sub-rod; 43. Slideway; 5. Spring; 6. Handle. Detailed implementation manners

[0033] The present application will be further described in detail below with reference to the accompanying drawings.

[0034] As Figure 1 shown, the embodiments of the present application disclose a fuse extraction device for a box-type transformer, including a clamping member 1, a connecting seat 2, a slide rod 3, a connecting rod 4 and a connecting member. The connecting seat 2 is slidably connected to the slide rod 3. The clamping member 1 is fixedly connected to the connecting rod 4. The end of the slide rod 3 away from the connecting seat 2 is slidably connected to the connecting rod 4. One end of the connecting member is fixedly connected to the connecting rod 4, and the other end is fixedly connected to the connecting seat 2.

[0035] The connecting rod 4 includes a first sub-rod 41 and a second sub-rod 42. One end in the length direction of the first sub-rod 41 is hinged to one end in the length direction of the second sub-rod 42. The other end in the length direction of the first sub-rod 41 and the other end in the length direction of the second sub-rod 42 are respectively fixedly connected to the corresponding clamping members 1.

[0036] As Figure 1 and Figure 2 shown, slideways 43 are respectively formed on the first sub-rod 41 and the second sub-rod 42. The slide rod 3 includes a third sub-rod 31 and a fourth sub-rod 32 arranged in parallel. One end of the third sub-rod 31 close to the connecting seat 2 is fixedly connected to one end of the fourth sub-rod 32 close to the connecting seat 2. Slide blocks 33 are respectively fixedly connected to the ends of the third sub-rod 31 away from the connecting seat 2 and the fourth sub-rod 32 away from the connecting seat 2. The two slide blocks 33 are respectively slidably connected to the corresponding slideways 43. It is easy to understand that, in order to improve the sliding stability of the slide blocks 33 along the slideways 43, a limiting member can be connected to the end of the slide block 33 away from the third sub-rod 31 or the fourth sub-rod 32 to reduce the possibility of the slide block 33 falling off from the slideways 43.

[0037] In this embodiment, the first sub-bar 41 and the second sub-bar 42 each include an integrally formed inclined portion and a vertical portion. The vertical portions of the first sub-bar 41 and the second sub-bar 42 are fixedly connected to the clamping member 1 respectively. The slideways 43 are located at the inclined portions of the first sub-bar 41 and the second sub-bar 42 respectively, and the slideways 43 extend along the length direction of the inclined portions of the first sub-bar 41 or the second sub-bar 42 respectively.

[0038] Exemplarily, the box-type transformer can be a 35KV box-type transformer. When the fuse and the insulating rod are disengaged, the fuse cannot be pulled out through the insulating rod. The user can push the connecting seat 2 to push the fuse extraction device into the fuse barrel. During the process of the user pushing the connecting seat 2, the connecting seat 2 pushes the first sub-bar 41 and the second sub-bar 42 to unfold through the connecting member, and the slider 33 slides along the slideway 43, and drives the slide rod 3 to slide along the connecting seat 2 towards the direction close to the fuse.

[0039] After the clamping member 1 moves to the concave and convex part of the fuse, the user can pull the connecting seat 2 out of the fuse barrel. The connecting seat 2 pulls the first sub-bar 41 and the second sub-bar 42 to close through the connecting member, and the slider 33 slides along the slideway 43, and drives the slide rod 3 to slide along the connecting seat 2 towards the direction away from the fuse, so that the clamping member 1 is clamped with the concave and convex part of the fuse. The user can continue to pull the connecting seat 2, so that the clamping member 1 drives the fuse to move out of the fuse barrel, thereby improving the convenience of fuse extraction and the maintenance efficiency of the fuse.

[0040] As Figure 1 and Figure 2 shown, in this embodiment, the clamping member 1 can be a semi-circular clip, or a clip of other shapes. The clip corresponding to the first sub-bar 41 and the clip corresponding to the second sub-bar 42 are used in combination.

[0041] Taking the clamping member 1 as a semi-circular clip as an example, the clip corresponding to the first sub-bar 41 and the clip corresponding to the second sub-bar 42 can form a hoop structure. The longitudinal section of the clip can be triangular, and the acute angle in the triangle abuts against the concave and convex part of the fuse. Thus, the clip corresponding to the first sub-bar 41 and the clip corresponding to the second sub-bar 42 can accurately match the concave and convex part of the fuse, form a stable contact point, help to reduce the sliding and offset during the clamping process, and improve the clamping stability.

[0042] In this embodiment, the triangle of the longitudinal section of the clip can be a right triangle, and the right angle in the triangle is located at the side of the clip close to the connecting seat 2, that is, the side of the clip facing the fuse is an inclined surface.

[0043] As Figure 1As shown, in this embodiment, the connecting member can be a spring 5. One end of the spring 5 in the length direction is fixedly connected to the connecting seat 2, and the other end of the spring 5 in the length direction is fixedly connected to the third sub-bar 31 or the fourth sub-bar 32.

[0044] As Figure 1 and Figure 3 shown, the sliding bar 3 further includes a cross bar 34 and a fifth sub-bar 35. The third sub-bar 31 and the fourth sub-bar 32 are respectively fixedly connected to the cross bar 34, and the fifth sub-bar 35 is fixedly connected to the cross bar 34. The third sub-bar 31, the fourth sub-bar 32, the fifth sub-bar 35 and the cross bar 34 are respectively slidably connected to the connecting seat 2.

[0045] As Figure 1 , Figure 3 and Figure 4 shown, the connecting seat 2 includes a first connecting plate 21 and a second connecting plate 22. The first connecting plate 21 and the second connecting plate 22 are fixedly connected after being buckled. Both the first connecting plate 21 and the second connecting plate 22 include a first sub-plate 23 and a second sub-plate 24. The first sub-plate 23 and the second sub-plate 24 are integrally formed. The thickness of the first sub-plate 23 is less than the thickness of the second sub-plate 24, and a sliding groove 25 is formed in the second sub-plate 24.

[0046] After the first connecting plate 21 and the second connecting plate 22 are buckled, a space is formed between the first sub-plate 23 of the first connecting plate 21 and the first sub-plate 23 of the second connecting plate 22. The third sub-bar 31, the fourth sub-bar 32 and the cross bar 34 can be located in this space and slide along this space; the sliding groove 25 corresponding to the second sub-plate 24 of the first connecting plate 21 and the sliding groove 25 corresponding to the second sub-plate 24 of the second connecting plate 22 form a through groove. The fifth sub-bar 35 can be located in this through groove and slide along this through groove, so that the sliding of the sliding bar 3 can be limited by the connecting seat 2, and the stability of the sliding bar 3 sliding along the connecting seat 2 is improved.

[0047] In this embodiment, the first sub-plate 23 of the first connecting plate 21 and the first sub-plate 23 of the second connecting plate 22 can both be triangular plates, and one angle of the first sub-plate 23 is fixedly connected to the spring 5. Exemplarily, the first sub-plates 23 are all acute-angled triangular plates, and one acute-angled part of the first sub-plate 23 is fixedly connected to the spring 5.

[0048] After the first connecting plate 21 and the second connecting plate 22 are buckled, the first connecting plate 21 and the second connecting plate 22 can be fixedly connected by a plurality of fixing bolts 26. The plurality of fixing bolts 26 can be respectively distributed along the circumferences of the first connecting plate 21 and the second connecting plate 22. In this embodiment, the first connecting plate 21 and the second connecting plate 22 can be fixed by three fixing bolts 26. The three fixing bolts 26 are respectively distributed along the circumferences of the first connecting plate 21 and the second connecting plate 22, thereby improving the firmness of the connection between the first connecting plate 21 and the second connecting plate 22.

[0049] As Figure 1 shown, in this embodiment, a handle 6 is fixedly connected to the end face of the connecting seat 2 away from the clamping member 1. When it is necessary to take out the fuse from the fuse cartridge, the user can push or pull the connecting seat 2 through the handle 6, which improves the convenience of operation.

[0050] The term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or apparatus comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or apparatus.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0053] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present utility model.

Claims

1. A fuse extraction device for a box-type transformer, characterized in that: The invention comprises a first sub-rod (41), a second sub-rod (42), a connecting seat (2), a sliding rod (3) and a connecting piece, wherein one end of the first sub-rod (41) in the length direction is hinged to one end of the second sub-rod (42) in the length direction, the other end of the first sub-rod (41) in the length direction and the other end of the second sub-rod (42) in the length direction are respectively fixedly connected with a clamping piece (1), the connecting seat (2) is slidably connected to the sliding rod (3), the end of the sliding rod (3) away from the connecting seat (2) is slidably connected to the first sub-rod (41) and the second sub-rod (42), one end of the connecting piece is fixedly connected to the first sub-rod (41) or the second sub-rod (42), and the other end is fixedly connected to the connecting seat (2).

2. A fuse extraction device for a box-type transformer according to claim 1, characterized in that: The first sub-rod (41) and the second sub-rod (42) are respectively provided with a slideway (43); the slide rod (3) comprises a third sub-rod (31) and a fourth sub-rod (32) which are arranged in parallel; an end of the third sub-rod (31) close to the connecting seat (2) is fixedly connected with an end of the fourth sub-rod (32) close to the connecting seat (2); an end of the third sub-rod (31) away from the connecting seat (2) and an end of the fourth sub-rod (32) away from the connecting seat (2) are respectively fixedly connected with a slider (33); the two sliders (33) are respectively slidably connected with the corresponding slideways (43).

3. A fuse extraction device for a box-type transformer according to claim 2, characterized in that: The clamping piece (1) is a semi-annular clamping piece.

4. A fuse extraction device for a box-type transformer according to claim 3, characterized in that: The longitudinal section of the clip is a right triangle, and the acute angle of the triangle abuts against the concave and convex part of the fuse, and the right angle of the triangle is located on the side of the clip close to the connection seat (2).

5. A fuse extraction device for a box-type transformer according to any one of claims 2 to 4, characterized in that: The connecting member is a spring (5), one end of the spring (5) in the length direction is fixedly connected to the connecting seat (2), and the other end of the spring (5) in the length direction is fixedly connected to the third sub-rod (31) or the fourth sub-rod (32).

6. A fuse extraction device for a box-type transformer according to claim 5, characterized in that: The sliding rod (3) further comprises a cross rod (34) and a fifth sub-rod (35); the third sub-rod (31) and the fourth sub-rod (32) are respectively fixedly connected to the cross rod (34); and the fifth sub-rod (35) is fixedly connected to the cross rod (34); The connecting seat (2) comprises a first connecting plate (21) and a second connecting plate (22), the first connecting plate (21) and the second connecting plate (22) both comprise a first sub-plate (23) and a second sub-plate (24), the first sub-plate (23) and the second sub-plate (24) are integrally formed, the thickness of the first sub-plate (23) is smaller than the thickness of the second sub-plate (24), and a sliding groove (25) is provided in the second sub-plate (24); After the first connecting plate (21) and the second connecting plate (22) are buckled together, the first sub-plate (23) of the first connecting plate (21) and the first sub-plate (23) of the second connecting plate (22) form a space, and the third sub-rod (31), the fourth sub-rod (32) and the cross bar (34) are located in the space and slide along the space; the sliding groove (25) corresponding to the second sub-plate (24) of the first connecting plate (21) and the sliding groove (25) corresponding to the second sub-plate (24) of the second connecting plate (22) form a through groove, and the fifth sub-rod (35) is located in the through groove and slides along the through groove.

7. A fuse extraction device for a box-type transformer according to claim 6, characterized in that: The first sub-plate (23) of the first connecting plate (21) and the first sub-plate (23) of the second connecting plate (22) are both triangular plates, and one corner of the first sub-plate (23) is fixedly connected to the spring (5).

8. A fuse extraction device for a box-type transformer according to claim 7, characterized in that: A plurality of fixing bolts (26) are connected between the first connecting plate (21) and the second connecting plate (22).

9. A fuse extraction device for a box-type transformer according to claim 8, characterized in that: The plurality of fixing bolts (26) are respectively distributed along the circumference of the first connecting plate (21) and the second connecting plate (22).

10. The fuse extraction device for a box-type transformer according to claim 1, characterized in that: A handle (6) is fixedly connected to the end surface of the connection seat (2) away from the clamping member (1).

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