A current transformer blocking device

Abstract

The utility model provides a current transformer plugging device, which relates to the field of current transformers, and includes: a first plugging head, a second plugging head, a first connecting piece and a second connecting piece; the first connecting piece is fixedly connected to the first plugging head, and the second connecting piece is fixedly connected to the second plugging head; first fixing grooves are provided on both sides of the first connecting piece, and a first elastic piece is fixedly connected to the inner wall of the first fixing groove, one end of the first elastic piece is fixedly connected to a first connecting rod, and the first connecting rod extends to the outside of the first connecting piece away from one end of the first elastic piece. The current transformer plugging device provided by the utility model can quickly and stably plug the end opening of the tubular structure of the primary winding of the current transformer during the use of the current transformer, has a firm plugging and good stability, and can provide a good buffering protection for the current transformer in the event of a collision, thereby extending the service life of the current transformer.

Description

Technical Field

[0001] The utility model relates to the field of current transformers, in particular to a current transformer blocking device. Background Art

[0002] A current transformer is an instrument that converts a large primary current into a small secondary current for measurement based on the principle of electromagnetic induction. The current transformer consists of a closed iron core and a winding. Current transformers are divided into two categories: electromagnetic current transformers and electronic current transformers. Its primary winding has very few turns and is connected in series in the circuit of the current to be measured. The entire current of the circuit often flows through it. The secondary winding has relatively many turns and is connected in series in the measuring instrument and protection circuit.

[0003] When the current transformer is in use, the end opening of the cylindrical structure of the primary winding needs to be sealed. Nowadays, it is difficult to seal it quickly and stably. The sealing is not firm enough and has poor stability. It is also difficult to provide good buffering protection for the current transformer in the event of a collision, which shortens the service life of the current transformer.

[0004] Therefore, it is necessary to provide a current transformer blocking device to solve the above technical problems. Utility Model Content

[0005] The utility model provides a current transformer blocking device, which solves the problems that it is difficult to quickly and stably block the end opening of the tubular structure of the primary winding of the current transformer during the use of the current transformer, the blocking is not firm enough, the stability is poor, and it is difficult to provide a good buffering protection for the current transformer in the event of a collision.

[0006] In order to solve the above technical problems, the utility model provides a current transformer blocking device, comprising:

[0007] A first plugging head, a second plugging head, a first connecting piece, and a second connecting piece;

[0008] The first connecting member is fixedly connected to the first plugging head, and the second connecting member is fixedly connected to the second plugging head;

[0009] A first fixing groove is formed on both sides of the first connecting member, and a first elastic member is fixedly connected to the inner wall of the first fixing groove, a first connecting rod is fixedly connected to one end of the first elastic member, and the first connecting rod extends from one end of the first elastic member to the outside of the first connecting member;

[0010] A stabilizing groove is provided inside the first connecting rod, and a second elastic member is fixedly connected to the inner wall of the stabilizing groove, one end of the second elastic member is fixedly connected to the second connecting rod, and one end of the second connecting rod away from the second elastic member sequentially passes through the first connecting rod and the second connecting member and extends to the interior of the second connecting member, and second fixing grooves are provided on both sides of the second connecting member.

[0011] Preferably, the first plugging head and the second plugging head are symmetrically arranged, and the second fixing groove is adapted to the second connecting rod.

[0012] Preferably, third elastic members are fixedly connected to the outer surfaces of the first plugging head and the second plugging head, and there are multiple third elastic members.

[0013] Preferably, one end of the third elastic member away from the first plugging head and the second plugging head is fixedly connected to a clamping plate, and the clamping plate is in an arc shape.

[0014] Preferably, the outer surfaces of the first plugging head and the second plugging head are both provided with limiting guide grooves, and one side of the clamping plate is fixedly connected to a limiting guide block.

[0015] Preferably, the limiting guide block is adapted to the limiting guide groove, and a side of the limiting guide block away from the abutting plate passes through the limiting guide groove and extends to the inside of the limiting guide groove.

[0016] Compared with the related art, the current transformer blocking device provided by the utility model has the following beneficial effects:

[0017] The utility model provides a current transformer plugging device. Through the arrangement of a first plugging head, a second plugging head, a first connecting piece, a second connecting piece, a first fixed groove, a first elastic piece, a first connecting rod, a stabilizing groove, a second elastic piece, a second connecting rod and a second fixed groove, the end opening of the tubular structure of the primary winding of the current transformer can be quickly and stably blocked during the use of the current transformer. The blocking is firm and stable, and the current transformer can be well buffered and protected when a collision occurs, thereby extending the service life of the current transformer. Through the arrangement of the first plugging head, the second plugging head, the third elastic piece, the clamping plate, the limiting guide groove and the limiting guide block, the end opening size of the tubular structure can be adjusted when the current transformer is blocked, so that current transformers with openings of different diameters can be blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a first embodiment of a current transformer blocking device provided by the utility model;

[0019] Figure 2 A schematic diagram of the structure of the first connecting member and the second connecting member provided by the utility model;

[0020] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown;

[0021] Figure 4 for Figure 2 An enlarged schematic diagram of part B is shown;

[0022] Figure 5 A bottom view of the structure of the first plugging head provided by the utility model;

[0023] Figure 6 for Figure 5 An enlarged schematic diagram of part C is shown.

[0024] Numbers in the figure:

[0025] 1. First plugging head, 2. Second plugging head, 3. First connecting member, 4. Second connecting member, 5. First fixing groove, 6. First elastic member, 7. First connecting rod, 8. Stabilizing groove, 9. Second elastic member, 10. Second connecting rod, 11. Second fixing groove, 12. Third elastic member, 13. Clamping plate, 14. Limiting guide groove, 15. Limiting guide block. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0027] First embodiment

[0028] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 ,in, Figure 1 A schematic structural diagram of a first embodiment of a current transformer blocking device provided by the utility model; Figure 2 A schematic diagram of the structure of the first connecting member and the second connecting member provided by the utility model; Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown; Figure 4 for Figure 2 An enlarged schematic diagram of part B is shown; Figure 5 A bottom view of the structure of the first plugging head provided by the utility model; Figure 6 for Figure 5The enlarged schematic diagram of the C part is shown. The current transformer plugging device comprises: a first plugging head 1, a second plugging head 2, a first connecting member 3 and a second connecting member 4; the first connecting member 3 is fixedly connected to the first plugging head 1, and the second connecting member 4 is fixedly connected to the second plugging head 2; both sides of the first connecting member 3 are provided with a first fixing groove 5, and the inner wall of the first fixing groove 5 is fixedly connected with a first elastic member 6, one end of the first elastic member 6 is fixedly connected with a first connecting rod 7, and the first connecting rod 7 extends to the outside of the first connecting member 3 away from one end of the first elastic member 6; the interior of the first connecting rod 7 is provided with a stabilizing groove 8, and the inner wall of the stabilizing groove 8 is fixedly connected with a first connecting rod 7; A second elastic member 9 is fixedly connected, and one end of the second elastic member 9 is fixedly connected to a second connecting rod 10, and the end of the second connecting rod 10 away from the second elastic member 9 passes through the first connecting rod 7 and the second connecting member 4 in sequence and extends to the interior of the second connecting member 4, and second fixing grooves 11 are provided on both sides of the second connecting member 4, and the first plugging head 1 and the second plugging head 2 are symmetrically arranged, and the second fixing groove 11 is adapted to the second connecting rod 10, so that the second connecting rod 10 can be better inserted into the second fixing groove 11, and the first connecting member 3 and the second connecting member 4 can be connected more stably, thereby increasing the stability after plugging.

[0029] The working principle of the current transformer blocking device provided by the utility model is as follows:

[0030] When in use, first insert the first plugging head 1 and the second plugging head 2 from both sides of the end opening of the tubular structure of the primary winding of the current transformer, so as to seal the end opening. By pressing the clamping plate 13 to squeeze the third elastic member 12, the position of the clamping plate 13 can be adjusted, so that it can be adjusted according to the size of the end opening of the tubular structure, so that current transformers with openings of different diameters can be sealed. At the same time, the clamping plate 13 is pressed against the inner wall of the end opening by the elastic force of the third elastic member 12, so that the first plugging head 1 and the second plugging head 2 can be more stably clamped on the end opening, the sealing is more firm, and the sealing stability is good. In the process of sealing, the two first connecting rods 7 are pulled to both sides respectively to stretch the first elastic member 6, so as to And drive the two second connecting rods 10 to move away from each other, and then when the first plugging head 1 and the second plugging head 2 are inserted into the end opening, the second connecting rod 10 is aligned with the second fixing groove 11, and the two first connecting rods 7 are released. The first connecting rod 7 returns to its original position under the elastic force of the first elastic member 6, and drives the two second connecting rods 10 to move relative to each other and get stuck in the second fixing groove 11, so as to connect the first connecting member 3 and the second connecting member 4, the first plugging head 1 and the second plugging head 2, thereby further increasing the stability of the plugging. When a collision occurs, the first connecting member 3 or the second connecting member 4 drives the first connecting rod 7 or the second connecting rod 10 to move, and the elastic force of the third elastic member 12 can provide a good buffering protection for the whole, thereby protecting the current transformer.

[0031] Compared with the related art, the current transformer blocking device provided by the utility model has the following beneficial effects:

[0032] Through the arrangement of the first plugging head 1, the second plugging head 2, the first connecting piece 3, the second connecting piece 4, the first fixed groove 5, the first elastic piece 6, the first connecting rod 7, the stabilizing groove 8, the second elastic piece 9, the second connecting rod 10 and the second fixed groove 11, the end opening of the tubular structure of the primary winding of the current transformer can be quickly and stably sealed during the use of the current transformer. The sealing is firm and stable, and it can provide good buffering protection for the current transformer in the event of a collision, thereby extending the service life of the current transformer.

[0033] Second embodiment

[0034] Please refer to Figure 1 , Figure 5 and Figure 6 Based on the current transformer blocking device provided by the first embodiment of the present application, the second embodiment of the present application proposes another current transformer blocking device. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0035] Specifically, the difference of the current transformer plugging device provided in the second embodiment of the present application is that, in the current transformer plugging device, the outer surfaces of the first plugging head 1 and the second plugging head 2 are fixedly connected with a third elastic member 12, and the number of the third elastic members 12 is several, and the ends of the third elastic member 12 away from the first plugging head 1 and the second plugging head 2 are fixedly connected with a clamping plate 13, and the shape of the clamping plate 13 is arc-shaped, and the outer surfaces of the first plugging head 1 and the second plugging head 2 are provided with a limiting guide groove 14, and one side of the clamping plate 13 is fixedly connected with a limiting guide block 15, and the setting of the limiting guide block 15 and the limiting guide groove 14 can It can play a good limiting and guiding role for the clamping plate 13 to prevent the clamping plate 13 from being offset, so that it can better clamp against the end opening of the tubular structure of the primary winding of the current transformer, so as to better seal it. The limiting guide block 15 is adapted to the limiting guide groove 14, and the side of the limiting guide block 15 away from the clamping plate 13 passes through the limiting guide groove 14 and extends to the inside of the limiting guide groove 14. When a collision occurs, the first connecting member 3 or the second connecting member 4 drives the first connecting rod 7 or the second connecting rod 10 to move, and the elastic force of the third elastic member 12 can play a good buffering and protective role on the whole, thereby protecting the current transformer.

[0036] Compared with the related art, the current transformer blocking device provided by the utility model has the following beneficial effects:

[0037] Through the arrangement of the first plugging head 1, the second plugging head 2, the third elastic member 12, the clamping plate 13, the limiting guide groove 14 and the limiting guide block 15, when plugging the current transformer, it is possible to adjust the size of the end opening of the cylindrical structure according to the size of the end opening, thereby being able to plug the current transformer with openings of different diameters.

[0038] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A current transformer blocking device, characterized in that: include: A first plugging head (1), a second plugging head (2), a first connecting piece (3) and a second connecting piece (4); The first connecting member (3) is fixedly connected to the first plugging head (1), and the second connecting member (4) is fixedly connected to the second plugging head (2); Both sides of the first connecting member (3) are provided with first fixing grooves (5), and the inner wall of the first fixing groove (5) is fixedly connected to a first elastic member (6), one end of the first elastic member (6) is fixedly connected to a first connecting rod (7), and one end of the first connecting rod (7) away from the first elastic member (6) extends to the outside of the first connecting member (3); A stabilizing groove (8) is provided inside the first connecting rod (7), and a second elastic member (9) is fixedly connected to the inner wall of the stabilizing groove (8), one end of the second elastic member (9) is fixedly connected to the second connecting rod (10), and the end of the second connecting rod (10) away from the second elastic member (9) passes through the first connecting rod (7) and the second connecting member (4) in sequence and extends to the inside of the second connecting member (4), and second fixing grooves (11) are provided on both sides of the second connecting member (4).

2. The current transformer blocking device according to claim 1, characterized in that: The first plugging head (1) and the second plugging head (2) are symmetrically arranged, and the second fixing groove (11) is adapted to the second connecting rod (10).

3. The current transformer blocking device according to claim 1, characterized in that: The outer surfaces of the first plugging head (1) and the second plugging head (2) are both fixedly connected with a third elastic member (12), and the number of the third elastic members (12) is multiple.

4. The current transformer blocking device according to claim 3, characterized in that: One end of the third elastic member (12) away from the first plugging head (1) and the second plugging head (2) is fixedly connected to a clamping plate (13), and the clamping plate (13) is in an arc shape.

5. The current transformer blocking device according to claim 4, characterized in that: The outer surfaces of the first plugging head (1) and the second plugging head (2) are both provided with a limiting guide groove (14), and one side of the abutting plate (13) is fixedly connected to a limiting guide block (15).

6. The current transformer blocking device according to claim 5, characterized in that: The limiting guide block (15) is adapted to the limiting guide groove (14); a side of the limiting guide block (15) away from the abutting plate (13) passes through the limiting guide groove (14) and extends to the interior of the limiting guide groove (14).

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