A current transformer

By introducing translation and rotation components into the combined current transformer, combined with an electric push rod and a gear meshing structure, the problem of fixed installation in the existing technology is solved, and flexible installation, convenient wiring and maintenance of the transformer are achieved.

CN119581171BActive Publication Date: 2025-10-17XIANNING FENGYUAN HIGH TECH ELECTRIC CO LTD
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Patent Information

Application Number
CN202411776940.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2025-10-17
Estimated Expiration
2044-12-05

AI Technical Summary

Technical Problem

The existing combined current transformer has a fixed installation method, which makes it difficult to meet the requirements of multi-directional wiring and convenient maintenance.

Method used

The distance between the two sets of transformers can be adjusted by the translation component, and the transformers can be rotated to a vertical or horizontal state by the rotation component. Combined with the electric push rod and gear meshing structure, flexible installation and convenient maintenance of the transformers can be achieved.

Benefits of technology

It realizes flexible installation and convenient wiring of the transformer, meets different installation requirements, and improves the convenience of maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a kind of conjoined current transformer, including mounting plate, the surface of the mounting plate is equipped with two groups of shell, and the shell inside plug-in installation is equipped with transformer body, the front of the shell is equipped with exposure slot, and the position of the transformer body corresponding to exposure slot is provided with plug-in end, the surface of the mounting plate is equipped with translation component, the translation component includes two-way screw rod, the both ends of the two-way screw rod are rotatably installed on the middle surface of mounting plate by bearing seat, relative to prior art, the distance between two groups of transformers can be adjusted by translation component, so as to facilitate wiring, by rotating component, two transformers parallel to mounting plate can be rotated to be perpendicular to mounting plate, so as to meet different installation requirements, in addition, translation component can drive the rotation of transformer itself alone, the front of different positions is oriented, so as to facilitate the maintenance window of different positions to carry out overhaul on its inside, improve the convenience when repairing.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of current transformers, in particular to a combined current transformer. BACKGROUND

[0002] The current transformer is an instrument for converting a large current on the primary side into a small current on the secondary side for measurement according to the principle of electromagnetic induction. The current transformer is composed of a closed core and a winding. The primary winding has a small number of turns and is connected in series with the current to be measured. The combined current transformer is generally composed of multiple current transformer units, and high alternating current conversion is very convenient, with strong functionality.

[0003] The combined current transformer of the prior art is generally installed on a plane and is mostly fixedly installed. Some technologies can separate the transformer by a distance to facilitate wiring with cables at different positions and achieve the convenience of wiring. However, this method still has limitations for the use of the combined current transformer and cannot meet the convenience of more directions and maintenance. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application aims to provide a combined current transformer to solve the problems in the background art. The present application has a novel structure. The distance between the two groups of transformers can be adjusted by the translation assembly, thereby facilitating wiring. The two transformers parallel to the mounting plate can be rotated to be perpendicular to the mounting plate by the rotation assembly, thereby meeting different installation requirements. In addition, the translation assembly can drive the rotation of the transformer itself, so that different positions face the front, thereby facilitating the maintenance of the inside through the maintenance window at different positions, and improving the convenience during maintenance.

[0005] To achieve the above-mentioned purpose, the present application is implemented by the following technical solution: a combined current transformer, comprising a mounting plate, two groups of housings are arranged on the surface of the mounting plate, and a transformer body is inserted and mounted in the housings, an exposed slot is arranged on the front of the housing, and a wire insertion end is arranged at the position corresponding to the exposed slot of the transformer body, a translation assembly is arranged on the surface of the mounting plate, the translation assembly comprises a bidirectional screw rod, both ends of the bidirectional screw rod are rotatably installed on the middle surface of the mounting plate through bearing seats, two moving blocks are slidably sleeved on the surface of the bidirectional screw rod, rotation assemblies are installed on the top and bottom of the moving blocks, the rotation assembly comprises a sliding block, an arc-shaped sliding rail is fixed to the bottom of the moving block, a sliding block is slidably connected in the arc-shaped sliding rail, an insertion ring is fixed to the outer surface of the sliding block, a sliding rod is slidably inserted between the two insertion rings, a bottom block is rotatably installed at the bottom of the housing through a bearing, a connecting plate is fixed to one side of the bottom block, and the other end of the connecting plate is fixedly connected with the sliding block.

[0006] Further, the gear is installed at the rotating connection position between the shell and the bottom block, one side of the bottom of the shell is fixedly connected with a sliding frame, and a tooth plate is slidably connected in the sliding frame and is in meshing connection with the gear.

[0007] Further, the translation assembly further comprises a screw block, two screw blocks are symmetrically sleeved on the surface of the bidirectional screw rod through threads, and a connecting frame is fixedly connected to the bottom of the screw block.

[0008] Further, a first electric push rod is fixedly connected to the bottom of the connecting frame and corresponds to the position of the tooth plate, the tooth plate is provided with a insertion hole corresponding to the position of the first electric push rod, and the elongated end of the first electric push rod is inserted into the insertion hole.

[0009] Further, a second electric push rod is fixedly connected to the front surface of the screw block and corresponds to the insertion hole of the tooth plate when the shell is horizontally rotated.

[0010] Further, the outer side of the arc-shaped sliding rail is provided with a moving groove, and the connecting plate slides along the moving groove.

[0011] Further, a plug rod is threadedly connected to the surface of the screw block, one end of the plug rod towards the moving block is fixedly connected with a threaded head, and a screw hole is fixedly connected to the moving block corresponding to the position of the threaded head of the plug rod, and the plug rod can be threadedly connected to the surface of the moving block.

[0012] Further, the rotating assembly further comprises a vertical screw rod, the vertical screw rod is rotatably installed on the top of the middle position of the bidirectional screw rod through a bearing seat, and a vertical block is threadedly sleeved on the surface of the vertical screw rod.

[0013] Further, a connecting rod is rotatably installed on the outer surface of the vertical block through a rotating shaft, and the other end of the connecting rod is rotatably installed on the surface of the sliding rod between the two plug rings through a rotating shaft.

[0014] Further, the maintenance window is fixedly connected to the two sides of the shell through screws, and there is a rotating space between the shell and the mounting plate.

[0015] The beneficial effects of the present application are as follows:

[0016] 1. The multiple maintenance windows of the present application can cooperate with the rotation of the shell itself to realize the maintenance work on the internally installed mutual inductor body from different directions and positions. When the position of the shell moves inside the arc-shaped slide rail through the slider, the mutual inductor body can be changed from vertical to horizontal. In this state, the mutual inductor can be rotated, and the opening of the slot and the wire insertion end is upward, so that the mutual inductor can be used transversely. The mounting plate can also be placed horizontally, and according to the different installation positions, the appropriate installation mode is selected. In the process of rotating and moving the mutual inductor body, the positions of the arc-shaped slide rail, the connecting frame and other structures can avoid the rotation of the shell, there is enough rotation space, and the problem of rotation interference can be avoided.

[0017] 2. When the bidirectional screw is rotated, only the screw block cooperates with the threads of the bidirectional screw, at this time the movement of the screw block only drives the tooth plate to slide along the slide frame, engages with the gear, drives the shell and the mutual inductor body to rotate and adjust the angle. When it is necessary to adjust the distance between the two shells and the mutual inductors, the long rod is rotated, one end of the threaded head is fixed on the moving block, and then the bidirectional screw is rotated again. The moving block moves together with the moving block through the threads of the screw block and the bidirectional screw, and the moving block drives the arc-shaped slide rail at the bottom to move synchronously, maintains the stability of the connection between the connecting plate and the slide frame and the bottom block, and separates the two groups of mutual inductors.

[0018] 3. The connecting frame at the bottom of the screw block and the first electric push rod extension are inserted into the insertion hole of the tooth plate, at this time the connecting frame can play a certain auxiliary supporting role for the bottom of the shell. When the bidirectional screw is rotated, the movement of the screw block will drive the movement of the tooth plate and engage with the gear, so as to rotate the mutual inductor. The two groups of mutual inductor bodies can be simultaneously and reversely rotated, and the position of the exposed slot is directed outward. When the mutual inductor is rotated to be horizontal, the position of the second electric push rod corresponds to the position of the tooth plate insertion hole. The second electric push rod is inserted into the tooth plate insertion hole, and the distance between the two mutual inductor bodies can still be adjusted through the bidirectional screw.

[0019] 4. Compared with the prior art, the distance between the two groups of mutual inductors can be adjusted through the translation assembly, so as to facilitate wiring. The two mutual inductors parallel to the mounting plate can be rotated to be perpendicular to the mounting plate through the rotation assembly, so as to meet different installation requirements. In addition, the translation assembly can independently drive the rotation of the mutual inductor itself, and the different positions are directed to the front surface, so as to facilitate the maintenance of the inside through the maintenance window at different positions, and the convenience during maintenance is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic view of the mutual inductor body and the mounting plate of the present application parallelly arranged;

[0021] Figure 2The vertical setting schematic view of the transformer body and the mounting plate of the combined current transformer of the application;

[0022] Figure 3 The rotating component structure schematic view of the combined current transformer of the application;

[0023] Figure 4 The bottom block connection schematic view of the translation component of the combined current transformer of the application;

[0024] Figure 5 The bottom structure schematic view of the shell of the combined current transformer of the application;

[0025] Figure 6 The translation component structure schematic view of the combined current transformer of the application;

[0026] Figure 7 The screw block and bidirectional screw rod connection schematic view of the combined current transformer of the application;

[0027] Figure 8 The screw block and moving block connection schematic view of the combined current transformer of the application.

[0028] In the figure: 1, mounting plate; 2, shell; 21, exposed slot; 22, wire insertion end; 23, maintenance window; 24, transformer body; 25, bottom block; 26, gear; 27, sliding frame; 28, toothed plate; 3, translation component; 31, bidirectional screw rod; 32, arc-shaped sliding rail; 33, connecting frame; 34, connecting plate; 35, moving slot; 36, screw block; 37, moving block; 38, first electric push rod; 39, second electric push rod; 310, insertion rod; 4, rotating component; 41, vertical screw rod; 42, vertical block; 43, connecting rod; 44, sliding block; 45, insertion ring; 46, sliding rod. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, purposes and effects of the application easy to understand, the application is further described below in combination with specific embodiments.

[0030] Please refer to Figures 1 to 8The application provides a technical scheme: a kind of conjoined current transformer, including mounting plate 1, the surface of mounting plate 1 is equipped with two groups of shell 2, and shell 2 inside plug-in installation is inserted into transformer body 24, the front of shell 2 is equipped with exposure slot 21, and the position of transformer body 24 corresponding exposure slot 21 is provided with wire end 22, the surface of mounting plate 1 is equipped with translation component 3, translation component 3 includes bidirectional screw rod 31, the both ends of bidirectional screw rod 31 are rotatably installed on the middle surface of mounting plate 1 by bearing seat, and two moving blocks 37 are slidably sleeved on the surface of bidirectional screw rod 31, rotating component 4 is installed at the top and bottom of moving block 37, rotating component 4 includes slider 44, the bottom of moving block 37 is fixed with arc-shaped slide rail 32, and slider 44 is slidably connected in arc-shaped slide rail 32, plug ring 45 is fixed on the outer surface of slider 44, and slide bar 46 is slidably inserted between two plug rings 45, bottom block 25 is rotatably installed at the bottom of shell 2 by bearing, and one side of bottom block 25 is fixed with connecting plate 34, another end of connecting plate 34 is fixedly connected with slider 44, when using device, transformer body 24 is installed in shell 2 inside, wire end 22 is located at the position of exposure slot 21, it is fixedly installed on wall surface or horizontal surface by mounting plate 1, the distance of two groups of transformer body 24 can be adjusted by translation component 3, to meet the demand of transformer body 24 wire insertion, the direction of transformer can be rotated and exchanged by rotating component 4, it can be switched from vertical to horizontal direction, transformer body 24 can also be rotated to adjust angle by the rotation of shell 2 along bottom block 25, suitable for installation in different environments, while the setting of multiple maintenance windows 23 can facilitate the maintenance of transformer body 24 from different directions.

[0031] The shell 2 is rotatably connected with the bottom block 25, gears 26 are installed at the rotating connection position of the shell 2 and the bottom block 25, a sliding frame 27 is fixed to one side of the bottom of the shell 2, a toothed plate 28 is slidably connected in the sliding frame 27, the toothed plate 28 is in meshing connection with the gears 26, the translation assembly 3 further comprises screw blocks 36, the two-way screw rod 31 is symmetrically sleeved with the screw blocks 36 on the surface, the bottom of each screw block 36 is fixedly connected with a connecting frame 33, the connecting frame 33 is L-shaped, a first electric push rod 38 is fixed to the bottom horizontal surface of the connecting frame 33 and corresponds to the position of the toothed plate 28, the toothed plate 28 is provided with a insertion hole corresponding to the position of the first electric push rod 38, the first electric push rod 38 is inserted into the insertion hole, a second electric push rod 39 is fixed to the front surface of the screw block 36, the position of the second electric push rod 39 corresponds to the insertion hole of the toothed plate 28 when the shell 2 is horizontally rotated, when the mutual inductor body 24 is in a vertical state, the connecting frame 33 at the bottom of the screw block 36 and the insertion hole of the toothed plate 28 can be inserted into the insertion hole of the toothed plate 28, at this time, the connecting frame 33 can play a certain auxiliary supporting role for the bottom of the shell 2, when the two-way screw rod 31 is rotated, the movement of the screw block 36 will drive the movement of the toothed plate 28 and the meshing of the gears 26, so as to rotate the mutual inductor, and the two groups of mutual inductor bodies 24 can be simultaneously and reversely rotated, the position of the exposed groove 21 is directed to the outside, when the mutual inductor is horizontally rotated, the position of the second electric push rod 39 replaces the position of the first electric push rod 38 and corresponds to the insertion hole of the toothed plate 28, the second electric push rod 39 is inserted into the insertion hole of the toothed plate 28, the distance between the two mutual inductor bodies 24 can still be adjusted by the two-way screw rod 31.

[0032] In this embodiment, a movable groove 35 is provided on the outer side of the arc-shaped slide rail 32, and the connecting plate 34 slides along the movable groove 35. The rotating assembly 4 also includes a vertical screw 41. The mounting plate 1 is located at the top of the middle position of the bidirectional screw 31 and is rotatably mounted with the vertical screw 41 through a bearing seat, and a vertical block 42 is threadedly sleeved on the surface of the vertical screw 41. A connecting rod 43 is rotatably mounted on the outer surface of the vertical block 42 through a rotating shaft. The other end of the connecting rod 43 is rotatably mounted on the surface of the slide rod 46 located between the two insert rings 45 through a rotating shaft. When the vertical screw 41 is rotated, the vertical block 42 and the vertical screw 41 are threadedly matched to move in the vertical direction, and the vertical block 42 is pulled by the connecting rod 43 and the slide rod 46. The slider 44 moves inside the arc-shaped slide rail 32 because the two ends of the connecting plate 34 are fixedly connected to the bottom block 25 and the slider 44 and can slide along the movable groove 35. Then, when the vertical block 42 moves upward along the vertical screw 41, the connecting rod 43 will pull the slider 44 to move along the arc-shaped slide rail 32. At this time, the bottom block 25 and the shell 2 will also rotate synchronously, and the direction of the mutual inductor will be reversed. The bottom and top of the arc-shaped slide rail 32 correspond to the mutual inductor in the vertical state and the mutual inductor in the horizontal state respectively. The slide rod 46 connecting the plug rod 310 can allow the arc-shaped slide rail 32 to move with the bidirectional screw 31. The plug rod 310 moves along the surface of the slide rod 46, which will not cause the slider 44 to separate from the connecting rod 43.

[0033] The screw block 36 is screwed with a rod 310 on its surface. The rod 310 is fixed with a threaded head at one end facing the moving block 37. The moving block 37 is fixed with a screw hole at the position corresponding to the threaded head of the rod 310. The rod 310 can be threadedly inserted into the surface of the moving block 37. In this partial structure, the threaded head at one end of the rod 310 and the screw block 36 are threadedly inserted into a common threaded connection structure. Therefore, it is not shown in the figure. The rod 310 is actually equivalent to a long screw, one end of which is inserted into the inside of the screw block 36. Because the screw block 36 moves in translation with the bidirectional screw 31, it will not be interfered with by the existence of the rod 310. It only needs to rotate the shell 2 itself to move the first electric push rod 38 or the second electric push rod 38 at the outer end of the screw block 36. After the electric push rod 39 is connected to the tooth plate 28, when the bidirectional screw 31 is rotated, because only the screw block 36 is threadedly engaged with the bidirectional screw 31, the movement of the screw block 36 only drives the tooth plate 28 to slide along the slide frame 27, meshing with the gear 26, driving the housing 2 and the transformer body 24 to rotate and adjust the angle. When it is necessary to adjust the distance between the two housings 2 and the transformer, the long rod is rotated to fix one end of its threaded head on the moving block 37, and then the bidirectional screw 31 is rotated again. The moving block 37 is still driven to move together through the threaded engagement of the screw block 36 and the bidirectional screw 31. The moving block 37 will drive the arc-shaped slide rail 32 at the bottom to move synchronously, maintaining the stability of the connection between the connecting plate 34, the slide frame 27 and the bottom block 25, and separating the two groups of transformers.

[0034] In the embodiment, the two sides of the shell 2 are fixed with maintenance windows 23 by screws, and there is a rotating space between the shell 2 and the mounting plate 1. Multiple maintenance windows 23 can cooperate with the rotation of the shell 2 itself to realize the maintenance work of the internally installed mutual inductor body 24 from different directions and positions. When the position of the shell 2 moves along the inside of the arc-shaped slide rail 32 through the sliding block 44, the mutual inductor body 24 can be changed from a vertical state to a horizontal state. In this state, the mutual inductor can be rotated, and the opening of the slot 21 and the wire insertion end 22 is exposed upward, so that the mutual inductor can be used transversely. The mounting plate 1 can also be placed horizontally. According to the different installation positions, appropriate installation methods are selected. In the process of rotating and moving the mutual inductor body 24, the positions of the arc-shaped slide rail 32, the connecting frame 33 and other structures can all avoid the rotation of the shell 2. There is enough rotating space, and the problem of rotating interference can be avoided.

[0035] When using the device, the transformer body 24 is installed inside the shell 2, the wire end 22 is located at the position of the exposed slot 21, when the transformer body 24 is in a vertical state, the connecting frame 33 at the bottom of the screw block 36 and the first electric push rod 38 inserted into the insertion hole of the tooth plate 28, at this time the connecting frame 33 can play a certain auxiliary support role to the bottom of the shell 2, when rotating the two-way screw rod 31, the movement of the screw block 36 will drive the movement of the tooth plate 28 and the gear 26 meshing, thereby rotating the direction of the transformer, and the two groups of transformer bodies 24 can be simultaneously reversed, the position of the exposed slot 21 is towards the outside, when the transformer is rotated to be horizontal, the position of the second electric push rod 39 replaces the first electric push rod 38 and the position of the insertion hole of the tooth plate 28, by inserting the second electric push rod 39 into the insertion hole of the tooth plate 28, the distance between the two transformer bodies 24 can still be adjusted by the two-way screw rod 31, and the installation plate 1 is fixedly installed on the wall surface or horizontal surface, the vertical screw rod 41 is rotated, the vertical block 42 is threadedly connected with the vertical screw rod 41 and moves in the vertical direction, the connecting rod 43 and the sliding rod 46 pull the sliding block 44 to move in the arc-shaped sliding rail 32, because the connecting plate 34 is fixedly connected with the bottom block 25 and the sliding block 44 at both ends and can slide along the moving slot 35, and when the vertical block 42 moves upwards along the vertical screw rod 41, the connecting rod 43 pulls the sliding block 44 to move along the arc-shaped sliding rail 32, at this time the bottom block 25 and the shell 2 also rotate synchronously, the direction of the transformer is changed, the bottom and top of the arc-shaped sliding rail 32 correspond to the vertical state of the transformer and the horizontal state of the transformer respectively, the sliding rod 46 of the connecting insertion rod 310 can move along the surface of the sliding rod 46 when the arc-shaped sliding rail 32 moves along the two-way screw rod 31, and the insertion rod 310 moves along the surface of the sliding rod 46, thereby preventing the separation of the sliding block 44 and the connecting rod 43, after the first electric push rod 38 or the second electric push rod 39 at the outer end of the screw block 36 is connected with the tooth plate 28, the two-way screw rod 31 is rotated, because only the screw block 36 is threadedly connected with the two-way screw rod 31, at this time the movement of the screw block 36 only drives the tooth plate 28 to slide along the sliding frame 27 and mesh with the gear 26, thereby driving the shell 2 and the transformer body 24 to rotate and adjust the angle, when it is necessary to adjust the distance between the two shells 2 and the transformers, the long rod is rotated, one end of the threaded head of the long rod is fixed on the moving block 37, then the two-way screw rod 31 is rotated again, the moving block 37 moves together with the two-way screw rod 31 through the threaded connection between the screw block 36 and the two-way screw rod 31, the moving block 37 drives the arc-shaped sliding rail 32 at the bottom to move synchronously, thereby maintaining the stability of the connection between the connecting plate 34 and the sliding frame 27 and the bottom block 25, the two groups of transformers are separated, which is suitable for installation in different environments, a plurality of maintenance windows 23 can cooperate with the rotation of the shell 2 to realize the maintenance work on the internally installed transformer body 24 from different directions and positions, when the shell 2 is located at the position where the sliding block 44 moves in the arc-shaped sliding rail 32, the transformer body 24 can be changed from a vertical state to a horizontal state, in this state, the transformer can be rotated, the openings of the exposed slot 21 and the wire end 22 are upwards,Therefore, the transformer can be used horizontally, and the mounting plate 1 can be placed horizontally. According to different installation positions, appropriate installation modes are selected, and in the process of rotating and moving the transformer body 24, the positions of the arc-shaped slide rails 32 and the connecting frames 33 can rotate and avoid the shell 2, there is enough rotating space, and the rotating interference problem can be avoided.

[0036] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application.

[0037] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A conjoined current transformer, comprising a mounting plate (1), characterized in that: Two sets of housings (2) are provided on the surface of the mounting plate (1), and a transformer body (24) is plugged and installed inside the housing (2). An exposure groove (21) is provided on the front of the housing (2), and a plug-in terminal (22) is provided at a position corresponding to the exposure groove (21) of the transformer body (24). A translation assembly (3) is provided on the surface of the mounting plate (1), and the translation assembly (3) includes a bidirectional screw (31). Both ends of the bidirectional screw (31) are rotatably mounted on the middle surface of the mounting plate (1) through a bearing seat, and two moving blocks (37) are slidably sleeved on the surface of the bidirectional screw (31). The top and bottom of the moving block (37) are installed with a rotation assembly (4), and the rotation assembly (4) includes a sliding Block (44), the bottom of the moving block (37) is fixed with an arc-shaped slide rail (32), and the inside of the arc-shaped slide rail (32) is slidably connected with a slider (44), an insert ring (45) is fixed on the outer surface of the slider (44), and a slide rod (46) is slidably inserted between the two insert rings (45), the bottom of the housing (2) is rotatably mounted with a bottom block (25) through a bearing, and a connecting plate (34) is fixed on one side of the bottom block (25), and the other end of the connecting plate (34) is fixedly connected to the slider (44), a gear (26) is installed at the rotation connection between the housing (2) and the bottom block (25), a slide frame (27) is fixed on one side of the bottom of the housing (2), and a tooth plate (28) is slidably connected inside the slide frame (27), The tooth plate (28) is meshed with the gear (26), and the translation assembly (3) further includes a screw block (36). Two screw blocks (36) are symmetrically threaded on the surface of the bidirectional screw rod (31), and a connecting frame (33) is fixed to the bottom of the screw block (36). The connecting frame (33) is L-shaped, and a first electric push rod (38) is fixed to the horizontal surface of the bottom of the connecting frame (33) at a position corresponding to the tooth plate (28). The tooth plate (28) is provided with a socket at a position corresponding to the first electric push rod (38), and the extended end of the first electric push rod (38) is inserted into the socket. A second electric push rod (39) is fixed to the front of the screw block (36), and the position of the second electric push rod (39) is rotated to When the tooth plate (28) is horizontal, the insertion hole of the tooth plate (28) corresponds to the insertion rod (310) on the surface of the screw block (36), and the insertion rod (310) is fixed with a threaded head at one end of the insertion rod (310) facing the moving block (37), and the moving block (37) is fixed with a screw hole at a position corresponding to the threaded head of the insertion rod (310). The insertion rod (310) can be threadedly inserted on the surface of the moving block (37). The rotating assembly (4) also includes a vertical screw (41). The mounting plate (1) is located at the top of the middle position of the bidirectional screw (31) and is rotatably mounted with the vertical screw (41) through a bearing seat, and a vertical block (42) is threadedly sleeved on the surface of the vertical screw (41). A connecting rod (43) is rotatably mounted on the outer surface of the vertical block (42) through a rotating shaft.The other end of the connecting rod (43) is rotatably mounted on the surface of the sliding rod (46) between the two inserting rings (45) via a rotating shaft.

2. The coupled current transformer according to claim 1, characterized in that: A moving groove (35) is provided on the outer side of the arc-shaped slide rail (32), and the connecting plate (34) slides along the moving groove (35).

3. The coupled current transformer according to claim 1, characterized in that: Maintenance windows (23) are fixed on both sides of the housing (2) by screws, and there is a rotation space between the housing (2) and the mounting plate (1).

Citation Information

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