Anti-interference current transformer

Abstract

The utility model discloses an anti-interference current transformer, which belongs to the technical field of current transformers and comprises a mounting plate, an assembly plate is rotatably mounted in the mounting plate through a mounting shaft, the surface of the assembly plate is connected with an assembly sleeve, and the surface of the assembly sleeve is connected with a transformer body through a fixing plate. The locking piece is installed on the surface of the assembling sleeve and used for fixing the fixing plate, and an anti-falling mechanism used for preventing the mutual inductor body from loosening and falling off is connected to the position, located on the inner wall of the assembling sleeve, of the top of the locking piece; the mounting groove is formed in the mounting plate, and a locking and positioning mechanism for limiting and fixing the assembly plate is arranged in the mounting groove; compared with the prior art, the transformer can be conveniently disassembled and assembled, the situation that bolts are loosened when equipment vibrates can be prevented after the transformer is assembled, the situation that the transformer falls off is effectively reduced, the detection result is guaranteed, the transformer can be stored and protected, and the safety of the structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of current transformers, in particular to a current transformer with anti-interference function. Background Art

[0002] The current transformer is composed of a closed iron core and a winding. Its primary winding has few turns and its secondary winding has more turns. When the current transformer is working, its secondary circuit is always closed. Therefore, the impedance of the series coil of the measuring instrument and the protection circuit is very small, and the working state of the current transformer is close to short circuit. However, the existing current transformer is usually directly fixed to the base by bolts. The equipment will vibrate during operation, and the bolts will loosen during vibration, causing the current transformer to fall off, affecting the measurement results, and there are certain safety hazards.

[0003] As in the prior art, the Chinese utility model with publication number: CN217306259U discloses a current transformer with anti-interference, including a transformer body and a base, a fixing plate fixedly mounted at the bottom end of the transformer body, and anti-loosening fixing devices fixedly mounted on both sides of the fixing plate, the fixing device is plugged into the base, the base is provided with two slots, the slots are provided with a limit plate and an ejector, and the limit plate and the ejector are fixed against the fixing device. The utility model discloses a current transformer with anti-interference, which can solve the problem that the existing current transformer and the base are usually directly fixed by bolts, and loosening occurs due to vibration.

[0004] It can be known from the above-mentioned prior art that during the use of the existing current transformer, the existing current transformer is usually directly fixed to the base by bolts. The equipment will vibrate during operation, and the bolts will loosen during the vibration, causing the current transformer to fall off, affecting the measurement results. At the same time, there are certain safety hazards. Therefore, we need to propose a current transformer with anti-interference. Utility Model Content

[0005] The purpose of the utility model is to provide a current transformer with anti-interference, which can be easily disassembled and assembled, and after assembly, it can prevent the bolts from loosening when the equipment vibrates, effectively reduce the possibility of the transformer falling off, ensure the detection result, and can store and protect the transformer, improve the safety of the structure, and facilitate subsequent movement, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides: a current transformer with anti-interference, including a mounting plate, the mounting plate is mounted on the top of a protective box, an assembly plate is rotatably mounted inside the mounting plate through a mounting shaft, the surface of the assembly plate is connected to an assembly sleeve, and the surface of the assembly sleeve is connected to a transformer body through a fixing plate; a locking piece is mounted on the surface of the assembly sleeve for fixing the fixing plate, an anti-drop mechanism for preventing the transformer body from loosening and falling off is connected to the top of the locking piece and located on the inner wall of the assembly sleeve; a mounting groove is opened inside the mounting plate, and a locking and positioning mechanism for limiting and fixing the assembly plate is arranged inside the mounting groove.

[0007] Preferably, the locking positioning mechanism includes: a positioning gear rotatably installed inside the mounting groove, and a positioning clamping plate connected to the surface of the positioning gear; wherein an adjusting wheel is connected to the top of the positioning gear and located on the top of the mounting plate, and positioning clamping slots are opened on both sides of the assembly plate.

[0008] Preferably, the positioning clamping plate is movably mounted on the inner wall of the positioning clamping slot, the installation shaft is inserted in the center position inside the assembly plate, and a hand wheel is detachably mounted on the end of the installation shaft.

[0009] Preferably, the locking and positioning mechanism also includes: a locking tooth block arranged on one side of the positioning gear, and a connecting rod connected to one side of the locking tooth block; wherein the outer surface of the locking tooth block is meshed with the surface of the positioning gear, and the other end of the connecting rod is located at the top of the assembly plate and is connected to an adjustment plate.

[0010] Preferably, a compression spring is sleeved on the surface of the connecting rod, one end of the compression spring is connected to the inner side of the locking tooth block, and both sides of the locking tooth block are slidably connected to the inner wall of the mounting groove.

[0011] Preferably, the anti-slip mechanism comprises: an anti-slip rod movably connected to the inner wall of the assembly sleeve, and an anti-slip gear plate movably mounted on the surface of the anti-slip rod; wherein, a protective tube is connected to the top of the anti-slip rod, and a limiting block is connected to the inner surface of the anti-slip gear plate.

[0012] Preferably, a limiting groove is provided on the surface of the anti-drop rod, and the surface of the limiting block is slidably connected to the inner wall of the limiting groove.

[0013] Preferably, an anti-dropout spring is provided inside the protective tube, the anti-dropout spring is sleeved on the surface of the anti-dropout rod, and the bottom end of the anti-dropout spring is connected to the top of the transformer body.

[0014] Preferably, a tooth surface is provided on the top of the locking member, the bottom of the anti-slip toothed disc is meshed with the anti-slip rod, and a fixing nut is installed at the bottom end of the anti-slip rod and located at the bottom of the assembly plate.

[0015] Preferably, positioning holes are distributed on the surface of the fixing plate, and the surface of the mounting sleeve is slidably connected to the inner walls of the positioning holes.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model adopts the coordinated arrangement of the structures such as the mounting plate, the mounting plate, the mounting sleeve, the fixing plate, the locking piece and the anti-slipping mechanism, so that the transformer body is mounted on the mounting sleeve through the fixing plate, and the locking piece is mounted on the surface of the mounting sleeve, so that the fixing plate is positioned and has a fixing effect. At the same time, the bottom end of the anti-slipping rod is inserted into the back side of the mounting plate through the mounting sleeve and fixed by the fixing nut. At this time, the anti-slipping toothed disk on the surface of the anti-slipping rod is subjected to the locking effect of the fixing nut, so that the bottom of the anti-slipping toothed disk is meshed and clamped on the tooth surface of the top of the locking piece by the teeth. With the limit setting of the limit block and the limit groove and the action force of the anti-slipping spring, the loosening of the locking piece can be effectively prevented, the loosening and falling of the transformer body can be reduced, and the safety of use is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the mounting plate structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the assembly plate structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the fixed plate structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the anti-drop rod structure of the utility model.

[0023] In the figure: 1. Mounting plate; 2. Protection box; 3. Assembly plate; 4. Transformer body; 5. Mounting slot; 6. Adjusting wheel; 7. Positioning card plate; 8. Positioning gear; 9. Locking tooth block; 10. Connecting rod; 11. Compression spring; 12. Adjusting plate; 13. Mounting shaft; 14. Hand wheel; 15. Positioning card slot; 16. Assembly sleeve; 17. Fixing plate; 18. Positioning hole; 19. Locking piece; 20. Tooth surface; 21. Anti-slip rod; 22. Protection sleeve; 23. Limiting slot; 24. Anti-slip toothed disc; 25. Limiting block; 26. Anti-slip spring; 27. Fixing nut. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides: a current transformer with anti-interference, including a mounting plate 1, the mounting plate 1 is mounted on the top of a protective box 2, an assembly plate 3 is rotatably mounted inside the mounting plate 1 through a mounting shaft 13, the surface of the assembly plate 3 is connected with an assembly sleeve 16, and the surface of the assembly sleeve 16 is connected with a transformer body 4 through a fixing plate 17; a locking piece 19 is mounted on the surface of the assembly sleeve 16 for fixing the fixing plate 17, and an anti-drop mechanism for preventing the transformer body 4 from loosening and falling off is connected to the top of the locking piece 19 and located on the inner wall of the assembly sleeve 16; a mounting groove 5 is opened inside the mounting plate 1, and a locking and positioning mechanism for limiting and fixing the assembly plate 3 is arranged inside the mounting groove 5.

[0026] It is worth mentioning that, through the coordinated arrangement of the mounting plate 1, the assembly plate 3, the assembly sleeve 16, the fixing plate 17, the locking piece 19, the anti-slip mechanism and the locking positioning mechanism, the mutual inductor can be conveniently disassembled and assembled, and after assembly, the bolts can be prevented from loosening when the equipment vibrates, thereby effectively reducing the possibility of the mutual inductor falling off and ensuring the detection results. The mutual inductor can also be stored and protected, thereby improving the safety of the structure and facilitating subsequent movement.

[0027] Specifically, the locking and positioning mechanism includes: a positioning gear 8 rotatably mounted inside the mounting groove 5, and a positioning clamping plate 7 connected to the surface of the positioning gear 8; wherein, the top of the positioning gear 8 and the top of the mounting plate 1 are connected with an adjusting wheel 6, and positioning clamping grooves 15 are provided on both sides of the assembly plate 3. The positioning clamping plate 7 is movably mounted on the inner wall of the positioning clamping groove 15, and the mounting shaft 13 is inserted in the center position inside the assembly plate 3, and a hand wheel 14 is detachably mounted on the end of the mounting shaft 13.

[0028] Furthermore, the positioning gear 8 is a structure for positioning and connecting the positioning card plate 7, and cooperates with the locking tooth block 9 to ensure the stability of the position of the positioning card plate 7 after adjustment. The adjusting wheel 6 is a structure for rotating the positioning gear 8 to control the expansion and retraction of the positioning card plate 7. The installation shaft 13 is a structure for assembling the assembly plate 3. The assembly plate 3 connected to the installation shaft 13 can be flipped by the hand wheel 14, and the transformer body 4 can be stored in the protective box 2 to improve the protection effect.

[0029] The locking and positioning mechanism also includes: a locking tooth block 9 arranged on one side of the positioning gear 8, and a connecting rod 10 connected to one side of the locking tooth block 9; wherein the outer surface of the locking tooth block 9 is meshed with the surface of the positioning gear 8, and the other end of the connecting rod 10 is connected to an adjustment plate 12 at the top of the assembly plate 3. A compression spring 11 is sleeved on the surface of the connecting rod 10, one end of the compression spring 11 is connected to the inner side of the locking tooth block 9, and both sides of the locking tooth block 9 are slidably connected to the inner wall of the mounting groove 5.

[0030] Furthermore, the locking tooth block 9 has the effect of locking the positioning gear 8, and the connecting rod 10 is a structure connecting the locking tooth block 9 and the adjustment plate 12, which is convenient for controlling the movement of the locking tooth block 9 through the adjustment plate 12. The compression spring 11 acts on the locking tooth block 9, so that the locking tooth block 9 remains in a state of meshing with the positioning gear 8, thereby improving the stability and safety of use.

[0031] The anti-drop mechanism includes: an anti-drop rod 21 movably connected to the inner wall of the assembly sleeve 16, and an anti-drop gear plate 24 movably mounted on the surface of the anti-drop rod 21; wherein, a protective sleeve 22 is connected to the top of the anti-drop rod 21, and a limiting block 25 is connected to the inner surface of the anti-drop gear plate 24. A limiting groove 23 is provided on the surface of the anti-drop rod 21, and the surface of the limiting block 25 is slidably connected to the inner wall of the limiting groove 23.

[0032] Furthermore, the assembly sleeve 16 is a structure for positioning the fixed plate 17, the anti-dropout rod 21 is a structure for reinforcing the transformer body 4 and preventing the locking member 19 from dropping out, the anti-dropout toothed disc 24 is a limiting structure that cooperates with the locking member 19 to prevent the locking member 19 from falling off due to vibration, the protective sleeve 22 protects the anti-dropout spring 26, the limiting groove 23 is a structure that cooperates with the limiting block 25, limits the anti-dropout toothed disc 24, and improves the stability of the structure.

[0033] Furthermore, an anti-dropout spring 26 is provided inside the protective tube 22, and the anti-dropout spring 26 is sleeved on the surface of the anti-dropout rod 21, and the bottom end of the anti-dropout spring 26 is connected to the top of the transformer body 4. A tooth surface 20 is provided at the top of the locking member 19, and the bottom of the anti-dropout toothed disc 24 is meshed with the anti-dropout rod 21, and a fixing nut 27 is installed at the bottom end of the anti-dropout rod 21 and at the bottom of the assembly plate 3. The anti-dropout spring 26 is a structure that assists the anti-dropout toothed disc 24 in locking and limiting, and the tooth surface 20 is a structure that is meshed and connected between the locking member 19 and the bottom of the anti-dropout toothed disc 24, so as to achieve the effect of limiting the rotation and loosening of the locking member 19, and the anti-dropout toothed disc 24 is a structure that fixes the anti-dropout rod 21, so that the anti-dropout toothed disc 24 is pressed against the top of the locking member 19.

[0034] Furthermore, the surface of the fixing plate 17 is provided with positioning holes 18, the surface of the mounting sleeve 16 is slidably connected to the inner wall of the positioning hole 18, and the locking member 19 is installed on the top of the positioning hole 18 through the mounting sleeve 16. The positioning hole 18 is a structure that cooperates with the fixing plate 17;

[0035] When in use, a structure for supporting the wires can be installed on the top of the assembly plate 3 and on both sides of the transformer body 4 to clamp and fix the wires to avoid interference caused by accidental contact. It can also adapt to wires of different diameters, thereby improving the adaptability of the device.

[0036] The transformer body 4 is installed on the assembly sleeve 16 through the fixing plate 17, and the locking piece 19 is installed on the surface of the assembly sleeve 16 to position the fixing plate 17 and fix it. At the same time, the bottom end of the anti-dropout rod 21 is inserted into the back side of the assembly plate 3 through the assembly sleeve 16 and fixed by the fixing nut 27. At this time, the anti-dropout toothed disc 24 on the surface of the anti-dropout rod 21 will be locked by the fixing nut 27, so that the bottom of the anti-dropout toothed disc 24 is engaged and clamped on the tooth surface 20 at the top of the locking piece 19 by the teeth. In combination with the limiting setting of the limiting block 25 and the limiting groove 23 and the acting force of the anti-dropout spring 26, the locking piece 19 can be effectively prevented from loosening. The situation of the transformer body 4 loosening and falling off can be reduced. When in use, the transformer body 4 on the assembly plate 3 can be stored and used by the hand wheel 14, and the locking tooth block 9 can be controlled to disengage from the surface of the positioning gear 8 by the adjusting plate 12. The positioning gear 8 can be rotated by the adjusting wheel 6, and the positioning card plate 7 can be clamped in the positioning card slot 15 to fix the assembly plate 3. By loosening the adjusting plate 12, the compression spring 11 acts on the locking tooth block 9 and locks it on the surface of the positioning gear 8 to fix the position of the positioning card plate 7, thereby further improving the stability of the assembly plate 3, preventing it from falling off during use, and improving the safety of use.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A current transformer with anti-interference, characterized in that: include: A mounting plate (1), the mounting plate (1) being mounted on the top of the protective box (2), the mounting plate (1) being rotatably mounted with an assembly plate (3) inside the mounting plate (1) via an assembly shaft (13), the surface of the assembly plate (3) being connected with an assembly sleeve (16), the surface of the assembly sleeve (16) being connected with a transformer body (4) via a fixing plate (17); A locking member (19) is mounted on the surface of the assembly sleeve (16) for fixing the fixing plate (17), and an anti-dropping mechanism for preventing the mutual inductor body (4) from loosening and falling off is connected to the top of the locking member (19) and located on the inner wall of the assembly sleeve (16); A mounting groove (5) is provided inside the mounting plate (1), and a locking and positioning mechanism for limiting and fixing the assembly plate (3) is provided inside the mounting groove (5).

2. The current transformer with anti-interference according to claim 1, characterized in that: The locking and positioning mechanism comprises: Rotating a positioning gear (8) installed inside the installation groove (5), and A positioning clamping plate (7) connected to the surface of the positioning gear (8); The top end of the positioning gear (8) and located on the top of the mounting plate (1) is connected to an adjusting wheel (6), and positioning slots (15) are provided on both sides of the assembly plate (3).

3. The current transformer with anti-interference according to claim 2, characterized in that: The positioning clamping plate (7) is movably clamped on the inner wall of the positioning clamping groove (15), the installation shaft (13) is inserted into the center position inside the assembly plate (3), and a hand wheel (14) is detachably mounted on the end of the installation shaft (13).

4. The current transformer with anti-interference according to claim 2, characterized in that: The locking and positioning mechanism also includes: A locking tooth block (9) is arranged on one side of the positioning gear (8), and A connecting rod (10) connected to one side of the locking tooth block (9); The outer surface of the locking tooth block (9) is meshed with the surface of the positioning gear (8), and the other end of the connecting rod (10) is connected to an adjustment plate (12) at the top of the assembly plate (3).

5. The current transformer with anti-interference function according to claim 4, characterized in that: A compression spring (11) is sleeved on the surface of the connecting rod (10), one end of the compression spring (11) is connected to the inner side of the locking tooth block (9), and the two sides of the locking tooth block (9) are slidably connected to the inner wall of the mounting groove (5).

6. The current transformer with anti-interference function according to claim 1, characterized in that: The anti-slip mechanism comprises: an anti-drop rod (21) movably connected to the inner wall of the assembly sleeve (16), and An anti-slip toothed disc (24) movably mounted on the surface of the anti-slip rod (21); The top of the anti-slip rod (21) is connected to a protective tube (22), and the inner surface of the anti-slip gear disc (24) is connected to a limiting block (25).

7. The current transformer with anti-interference function according to claim 6, characterized in that: A limiting groove (23) is provided on the surface of the anti-drop rod (21), and a surface of the limiting block (25) is slidably connected to the inner wall of the limiting groove (23).

8. The current transformer with anti-interference function according to claim 7, characterized in that: An anti-dropout spring (26) is arranged inside the protective tube (22), and the anti-dropout spring (26) is sleeved on the surface of the anti-dropout rod (21), and the bottom end of the anti-dropout spring (26) is connected to the top of the transformer body (4).

9. The current transformer with anti-interference function according to claim 8, characterized in that: The top of the locking member (19) is provided with a tooth surface (20), the bottom of the anti-slip toothed disc (24) is meshed with the anti-slip rod (21), and a fixing nut (27) is installed at the bottom end of the anti-slip rod (21) and located at the bottom of the assembly plate (3).

10. The current transformer with anti-interference function according to claim 1, characterized in that: Positioning holes (18) are distributed on the surface of the fixing plate (17), and the surface of the assembly sleeve (16) is slidably connected to the inner wall of the positioning holes (18).

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