Current transformer with one-way threading structure

Abstract

The invention belongs to the technical field of current transformers, and particularly relates to a current transformer with a one-way threading structure. The current transformer comprises a current transformer body and further comprises a one-way baffle part arranged in a cavity of the current transformer body, a rotating top block is fixedly arranged at the top of the tip end of the one-way baffle part, and the inner side of a groove of the rotating top block is rotationally connected with a supporting plate through a rotating positioning pin; a plurality of supporting plate stand column parts distributed at intervals are installed on the two sides of the top of the supporting plate, and the tops of the supporting plate stand column parts are rotationally connected with guide rotating rollers through bolts. The supporting plate bottom groove is formed in the bottom of the supporting plate, an adjusting inclined plate is rotationally connected into the supporting plate bottom groove through a bottom groove rotating rod, and a lifting mechanism for driving the adjusting inclined plate to adjust the angle so as to change the inclination angle of the whole supporting plate is arranged at the bottom of the adjusting inclined plate.

Description

Technical Field

[0001] This invention relates to the field of current transformer technology, specifically to a current transformer with a unidirectional wire-passing structure. Background Technology

[0002] As a core device for metering and protection in power systems, the direction of the primary side cable of a current transformer directly affects the metering accuracy and equipment safety. If the cable is threaded in the opposite direction, it can easily lead to excessive metering errors, malfunctions of protection devices, and even safety hazards such as high electromotive force breaking down insulation. Therefore, the unidirectional cable threading structure has become a key auxiliary mechanism for current transformers. Its core function is to restrict the cable to only enter from the marked P1 end and exit from the P2 end, thus eliminating the risk of reverse cable threading.

[0003] Traditional guide support components (such as fixed baffles and rotating roller mounting plates) are mostly designed with fixed angles, which cannot be adaptively adjusted according to the thickness of the cable. For example, when threading thin cables, only a few guide components can contact the cable surface. The limited contact points lead to unstable cable support. At the same time, after the cable is threaded, it relies solely on the natural friction of the guide components for positioning. Affected by equipment vibration, external drag, etc., it is very easy for it to loosen, shift, or even detach from the threading hole, which seriously affects the operational stability and safety of the current transformer.

[0004] Therefore, we propose a current transformer with a unidirectional wire-passing structure to solve the above problems. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a current transformer with a unidirectional cable threading structure. This solves the problem mentioned in the background section where the guide support components (such as fixed baffles and rotating roller mounting plates) in traditional structures are mostly designed with fixed angles, making it impossible to adaptively adjust according to the cable thickness. For example, when threading thin cables, only a few guide components can contact the cable surface, resulting in unstable cable support due to the limited contact points. Furthermore, after the cable is threaded, it relies solely on the natural friction of the guide components for positioning, making it highly susceptible to loosening, displacement, or even detachment from the threading hole due to equipment vibration or external dragging, severely affecting the operational stability and safety of the current transformer.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0009] A current transformer with a unidirectional wire-passing structure includes a current transformer body and further includes:

[0010] The one-way baffle is set inside the cavity of the current transformer body, and a rotating top block is fixed at the tip of the one-way baffle. A support plate is rotatably connected to the inner side of the groove of the rotating top block through a rotating positioning pin. Multiple sets of support plate columns are installed on the top two sides of the support plate at intervals. A guide roller is rotatably connected to the top of the support plate column through a pin.

[0011] The bottom of the support plate is provided in the bottom groove of the support plate. An adjusting ramp is rotatably connected to the bottom groove of the support plate through the bottom groove rotating rod. The bottom of the adjusting ramp is provided with a lifting mechanism that drives the adjusting ramp to adjust the angle, thereby changing the tilt angle of the entire support plate.

[0012] Furthermore, the current transformer body has mounting grooves on both sides of its main body, and mounting cover plates are attached to both ends of the current transformer body, with protrusions that overlap with the mounting grooves fixed on the surface of the mounting cover plates.

[0013] Furthermore, the surface of the mounting cover plate has a cover plate perforation, and a mounting pull plate is inserted into the cover plate perforation groove. A reinforcing side plate is fixed at the end of the mounting pull plate, and a reinforcing screw is inserted into the side plate waist hole opened on the surface of the reinforcing side plate.

[0014] Furthermore, an inner bonding plate is installed on the side of the one-way baffle, and a connecting pressure plate is fixed at the end of the inner bonding plate away from the one-way baffle. The connecting pressure plate and the inner bonding plate form an L-shaped structure. The inner bonding plate and the connecting pressure plate are respectively attached to the inner wall and the front end of the current transformer body.

[0015] Furthermore, the surface of the mounting cover plate is provided with mounting threaded holes distributed in an annular pattern, the end of the connecting pressure plate covers the mounting threaded holes, and the end of the mounting threaded holes is provided with a through hole corresponding to the mounting threaded holes.

[0016] Furthermore, the lifting mechanism includes a pulling crossbar, a radial limiting groove, and a top-through groove. The radial limiting groove is formed inside the one-way baffle section, the top-through groove is formed at the top of the one-way baffle section and is connected to the radial limiting groove, and the pulling crossbar is slidably connected inside the radial limiting groove.

[0017] Furthermore, the bottom of the adjusting ramp is rotatably connected to the top of the pulling crossbar via a pin, and the length of the top through groove is less than the length of the radial limiting groove.

[0018] Furthermore, the inner bonding plate is provided with a threaded hole, and the inner bonding plate is also provided with a radial sliding groove communicating with the threaded hole. A multi-faceted moving rod and a spiral pushing rod are respectively connected to the radial sliding groove and the threaded hole. The spiral pushing rod is threadedly connected to the threaded hole, and the multi-faceted moving rod is slidably connected in the radial sliding groove. A rotating connecting block is rotatably connected to the top of the spiral pushing rod and the end of the multi-faceted moving rod.

[0019] Furthermore, the front end of the multi-faceted moving rod is fixedly provided with a docking rod, and the end of the pulling crossbar is fixedly provided with a docking block. A rotating connecting piece is rotatably connected inside the docking block, and a docking ring sleeved on the outside of the docking rod is fixedly provided on the surface of the rotating connecting piece.

[0020] Furthermore, two sets of rotating connecting plates are fixedly provided on the end face of the one-way baffle near the inner bonding plate. Two sets of plate connecting parts corresponding to the positions of the rotating connecting plates are fixedly provided on the surface of the inner bonding plate. A plate rotating pin is fixedly provided in the groove of the plate connecting part. A round hole is opened on the surface of the rotating connecting plate and fitted outside the plate rotating pin. A one-way limiting plate is installed diagonally below the plate rotating pin. Multiple sets of arc springs are installed between the one-way limiting plate and the bottom of the rotating connecting plate. The surface of the mounting cover plate is also provided with a mounting groove. A temperature sensor is installed in the mounting groove. The detection end of the temperature sensor is close to the outer wall of the current transformer body.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, the present invention provides a current transformer with a unidirectional wire-passing structure, which has the following advantages:

[0023] This invention uses a lifting mechanism to drive an adjusting ramp, enabling the angle of the support plate to be adjustable. The support posture can be precisely adjusted according to the thickness of the cable, ensuring that multiple sets of guide rollers on the support plate can fully contact the surface of the cable. This avoids the problem of local contact for both thin and thick cables, significantly improving the uniformity of the guide support and solving the problem of poor adaptability of traditional fixed-angle structures.

[0024] The integrated design of the support plate angle adjustment and clamping function allows the guide roller to be tightly pressed against the cable surface through the adjustment mechanism according to actual usage needs, forming a reliable anti-loosening and fixing effect. This effectively prevents the cable from loosening or detaching due to vibration or dragging, ensuring the metering accuracy and operational safety of the current transformer. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a side view of the present invention;

[0027] Figure 3 This is an enlarged view of the assembly pull plate of the present invention;

[0028] Figure 4 This is a schematic diagram of the connection between the pressure plate and the inner bonding plate of the present invention.

[0029] Figure 5 This is a schematic diagram of the structure of the unidirectional baffle portion of the present invention;

[0030] Figure 6This is a bottom view of the one-way baffle portion of the present invention;

[0031] Figure 7 This is a split view of the support plate and rotating top block of the present invention;

[0032] Figure 8 This is an exploded view of the pull bar and the polygonal moving bar of the present invention;

[0033] Figure 9 This is a cross-sectional view of the unidirectional baffle portion of the present invention;

[0034] Figure 10 This is an enlarged view of the docking block of the present invention;

[0035] Figure 11 This is a schematic diagram of the structure at the plate connection part of the present invention;

[0036] In the diagram: 1. Current transformer body; 2. Assembly cover plate; 3. Assembly groove; 4. Cover plate perforation; 5. Assembly pull plate; 6. Reinforcing side plate; 7. Side plate waist hole; 8. Reinforcing screw; 9. Connecting pressure plate; 10. Assembly threaded hole; 11. Inner bonding plate; 12. One-way baffle; 13. Rotating top block; 14. Rotating positioning pin; 15. Support plate; 16. Support plate column; 17. Guide roller; 18. Support plate bottom groove; 19. Bottom groove rotating rod; 20. 21. Adjusting ramp; 22. Pulling crossbar; 23. Radial limiting groove; 24. Top through groove; 25. Threaded hole; 26. Spiral push rod; 27. Multi-faceted moving rod; 28. Rotating connecting block; 29. ​​Butt joint block; 30. Rotating connecting piece; 31. Butt joint ring; 32. Butt joint rod; 33. Radial sliding groove; 34. Plate body connecting part; 35. Rotating connecting plate; 36. Plate body rotating pin; 37. One-way limiting plate; 38. Arc spring; 39. Temperature sensor. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example

[0039] like Figure 1-11 As shown, an embodiment of the present invention proposes a current transformer with a unidirectional wire-passing structure, including a current transformer body 1, wherein one side of the current transformer body 1 is P1 and the other side is P2. When passing wires, the wires need to enter from the P1 side and exit from the P2 side. In order to avoid reverse wire passing, the following structure is designed.

[0040] The current transformer body 1 has mounting grooves 3 designed at the outer edges of both ends, and mounting cover plates 2 are attached to both ends of the current transformer body 1. The diameter of the mounting cover plates 2 is larger than that of the current transformer body 1, and the mounting cover plates 2 have an annular structure. Annular protrusions are fixed on the surface of the mounting cover plates 2, which are adapted to the mounting grooves 3. After the two sets of mounting cover plates 2 are attached to both ends of the current transformer body 1, the protrusions of the two sets of mounting cover plates 2 are pressed into the grooves of the mounting grooves 3. At the same time, in order to ensure a stable connection between the two sets of mounting cover plates 2 and the current transformer body 1, multiple sets of cover plate perforations 4 are opened on the surface of the mounting cover plates 2. This aligns the cover plate holes 4 on the two sets of oppositely distributed assembly cover plate parts 2. Each set of cover plate holes 4 has an assembly pull plate 5 inserted into its groove. One end of the assembly pull plate 5 is a bent part that adheres to the surface of the assembly cover plate part 2. The other end of the assembly pull plate 5 is fixed with a reinforcing side plate 6. During installation, the two sets of reinforcing side plates 6 are parallel, aligning the side plate waist holes 7 on the surface of the reinforcing side plates 6. At this time, by inserting a reinforcing screw 8 into the side plate waist hole 7 and using a nut and a washer, the reinforcing screw 8 can lock the two sets of reinforcing side plates 6, thereby clamping the current transformer body 1 between the two sets of assembly cover plate parts 2 on both sides, thus completing the installation.

[0041] Multiple sets of unidirectional baffles 12 are installed within the cavity of the current transformer body 1, each set of unidirectional baffles 12 having a triangular structure. When in a vertical position, the tips of the multiple sets of unidirectional baffles 12 are close to the center of the cavity of the mounting cover plate 2, forming a petal-like structure. Each set of unidirectional baffles 12 exists independently. To ensure that the unidirectional baffles 12 exist independently within the cavity of the current transformer body 1, one end of the unidirectional baffle 12 is connected to an inner bonding plate 11, and the other end of the inner bonding plate 11 is fixed with a connecting pressure plate 9. The 11 is attached to the inner wall of the cavity of the current transformer body 1, and the connecting pressure plate 9 is attached to the side of the current transformer body 1. The mounting cover plate 2 has mounting threaded holes 10 arranged in a ring at intervals. The end of the connecting pressure plate 9 is provided with a through hole corresponding to the mounting threaded hole 10. During assembly, simply attach the top of the connecting pressure plate 9 to the surface of the mounting cover plate 2, align the through hole of the connecting pressure plate 9 with the mounting threaded hole 10, and use bolts to lock the connecting pressure plate 9 to the mounting cover plate 2. This completes the installation of the one-way baffle 12.

[0042] A rotating top block 13 is fixed at the tip of the one-way baffle portion 12, such as Figure 7The rotating top block 13 structure shown has a rotating positioning pin 14 installed on its inner side. A support plate 15 connected to the rotating positioning pin 14 passes through the groove of the rotating top block 13. The two ends of the rotating positioning pin 14 are rotatably connected to the rotating top block 13, thus giving the support plate 15 a certain degree of angle adjustment capability inside the rotating top block 13. Multiple sets of support plate columns 16 are installed on both sides of the top of the support plate 15 at intervals. Guide rollers 17 are rotatably connected to the top of the support plate columns 16 via pins. 7. The surface is made of rubber. When it comes into contact with the surface of the wire, the wear on the wire surface can be greatly reduced by rolling. The length of the guide roller 17 near the tip of the one-way baffle 12 increases in a stepwise manner from the side away from the tip, so that the guide roller 17 is evenly distributed in the cavity of the current transformer body 1. When the wire is threaded, the front end of the wire abuts against the surface of the guide roller 17 and presses the one-way baffle 12, causing the one-way baffle 12 to rotate. The one-way baffle 12, which was originally in a vertical position, gradually expands outward, and the wire can pass through the expanded hole.

[0043] Due to the different thicknesses of the wires, the guide roller 17 on the side furthest from the tip may not be able to contact the surface of the wire. It can be understood that the thicker the wire, the more the guide roller 17 contacts the surface of the wire. Conversely, when the wire is thinner, only the guide roller 17 closest to the tip of the one-way baffle 12 may contact the surface of the wire. Therefore, in order to make more guide rollers 17 make better contact with the wire and based on pressure, and to keep their position stable after passing through the cavity of the current transformer body 1, so as to prevent accidental contact and dragging during use that could cause them to detach, the design is as follows.

[0044] A tray bottom groove 18 is formed at the bottom of the support tray 15, and an adjusting inclined plate 20 is installed in the groove of the tray bottom groove 18. A bottom groove rotating rod 19 is fixed to the inner wall of the tray bottom groove 18, and a round hole is formed on the surface of one end of the adjusting inclined plate 20 so that the round hole fits outside the bottom groove rotating rod 19. Therefore, one end of the adjusting inclined plate 20 can rotate in the groove of the tray bottom groove 18. Since the other end of the support tray 15 rotates in the groove of the rotating top block 13 with the rotating positioning pin 14 as the pivot point, when the adjusting inclined plate 20 is operated to adjust the angle, it will drive the support tray 15 to adjust the angle. By changing the tilt angle of the support tray 15, as many guide rollers 17 as possible can contact and adhere to the surface of the line, and at the same time, it can provide a certain effect of pressing the line.

[0045] The bottom of the adjusting ramp 20 is equipped with a lifting mechanism that drives the adjusting ramp 20 to adjust its angle, thereby changing the tilt angle of the entire support plate 15. The lifting mechanism includes a pulling crossbar 21, a radial limiting groove 22, and a top-through groove 23. The radial limiting groove 22 is opened in the one-way baffle part 12, and the top-through groove 23 is opened at the top of the one-way baffle part 12 and communicates with the radial limiting groove 22. The pulling crossbar 21 is slidably connected in the groove of the radial limiting groove 22. The bottom of the adjusting ramp 20 and the top of the pulling crossbar 21 are rotatably connected by a pin. The length of the top-through groove 23 is less than the length of the radial limiting groove 22. By pulling the crossbar 21 to slide in the groove of the radial limiting groove 22, the adjusting ramp 20 can be changed in angle, thereby generating a thrust to drive the support plate 15 to adjust its angle.

[0046] The inner bonding plate 11 has a threaded hole 24 and a radial sliding groove 32 communicating with the threaded hole 24. The radial sliding groove 32 is a multi-faceted hole. A multi-faceted moving rod 26 and a spiral push rod 25 are respectively connected to the radial sliding groove 32 and the threaded hole 24. The spiral push rod 25 is adapted to the groove shape of the radial sliding groove 32, so that the multi-faceted moving rod 26 can slide radially within the groove of the radial sliding groove 32. The external thread of the spiral push rod 25 is adapted to the threaded hole 24. By driving the spiral push rod 25 through the transformation of the end of the spiral push rod 25, the spiral push rod 25 can push the multi-faceted moving rod 26 to move. The top of the spiral push rod 25 and the end of the multi-faceted moving rod 26 are rotatably connected to a rotating connecting block 27. The end of the multi-faceted moving rod 26 is provided with a rotating part that allows the rotating connecting block 27 to be inserted. The front end of the multi-faceted moving rod 26 is fixed with a docking insertion rod 31, so that the docking... The insertion rod 31 protrudes from the hole in the radial sliding groove 32, and a docking block 28 is fixedly provided at the end of the pulling crossbar 21. A rotating connector 29 is rotatably connected inside the docking block 28. A docking ring 30 sleeved on the outside of the docking insertion rod 31 is fixedly provided on the surface of the rotating connector 29. The bent part of the docking insertion rod 31 is inserted into the hole of the docking ring 30. It is worth noting that the diameter of the docking insertion rod 31 is smaller than the inner diameter of the hole of the docking ring 30. When the one-way baffle part 12 is in the vertical or unfolded position, the docking insertion rod 31 will always be inserted into the hole of the docking ring 30. Therefore, when the wire passes through the current transformer body 1, the one-way baffle part 12 tilts at an angle. Then, by operating the handle at the end of the spiral push rod 25, the docking insertion rod 31 can push the docking ring 30, thereby causing the docking ring 30 to push and pull the crossbar 21, and finally realize the adjustment of the angle of the support plate 15.

[0047] The connection between the one-way baffle 12 and the inner bonding plate 11 is achieved by a rotating connecting plate 34. Two sets of rotating connecting plates 34 are fixedly provided on the end face of the one-way baffle 12 near the inner bonding plate 11. Two sets of plate connecting parts 33 corresponding to the positions of the rotating connecting plates 34 are fixedly provided on the surface of the inner bonding plate 11. A plate rotating pin 35 is fixedly provided in the groove of the plate connecting part 33. A round hole is opened on the surface of the rotating connecting plate 34 and fitted outside the plate rotating pin 35. A one-way limiting plate 36 is installed diagonally below the plate rotating pin 35. Multiple sets of arc springs 37 are installed between the one-way limiting plate 36 and the bottom of the rotating connecting plate 34.

[0048] The presence of the one-way limiting plate 36 restricts the rotation angle of the rotating connecting plate 34. This design allows the one-way baffle 12 to rotate only to one side, thus restricting the direction of threading. The thread passes from P1 to P2, but cannot be threaded in the opposite direction. The arc-shaped spring 37 keeps the rotating connecting plate 34 in an unthreaded state, driving the one-way baffle 12 into a vertical position. The arc-shaped spring 37 is a high-durability spring, and its two ends are respectively engaged with the one-way limiting plate 36 and the rotating connecting plate 34. When the rotating connecting plate 34 is in a vertical position... When the rotating connecting plate 34 is rotated, the arc spring 37 is in an unstretched state. Conversely, when the rotating connecting plate 34 is rotated, the arc spring 37 is in a stretched state and has elastic force. The surface of the mounting cover plate 2 is also provided with a mounting groove, in which a temperature sensor 38 is installed. An insulating bushing is installed between the sensor and the mounting groove to avoid electromagnetic interference. The detection end of the temperature sensor 38 is close to the outer wall of the current transformer body 1, and the distance between the detection end and the shell of the current transformer body 1 is 2-3mm. It is used to monitor the operating temperature of the current transformer. All bolts and screws in this patent are made of non-magnetic metal material, which will not affect the normal use of the current transformer.

[0049] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A current transformer with a unidirectional wire-passing structure, comprising a current transformer body (1), characterized in that: Also includes: A one-way baffle (12) is installed inside the cavity of the current transformer body (1), and a rotating top block (13) is fixed at the tip of the one-way baffle (12). A support plate (15) is rotatably connected to the inner side of the groove of the rotating top block (13) through a rotating positioning pin (14). Multiple sets of support plate columns (16) are installed on the top two sides of the support plate (15) at intervals. A guide roller (17) is rotatably connected to the top of the support plate column (16) through a pin. The bottom groove (18) of the support plate (15) is provided. An adjusting ramp (20) is rotatably connected in the groove of the bottom groove (18) through the bottom groove rotating rod (19). The bottom of the adjusting ramp (20) is provided with a lifting mechanism that drives the adjusting ramp (20) to adjust the angle and thereby change the tilt angle of the entire support plate (15).

2. A current transformer with a unidirectional wire-passing structure according to claim 1, characterized in that: The current transformer body (1) has mounting grooves (3) on both sides of its edges. Mounting cover plates (2) are attached to both ends of the current transformer body (1), and the surface of the mounting cover plates (2) is fixed with protrusions that overlap with the mounting grooves (3).

3. A current transformer with a unidirectional wire-passing structure according to claim 2, characterized in that: The surface of the assembly cover plate part (2) is provided with a cover plate through hole (4), and an assembly pull plate (5) is inserted into the groove of the cover plate through hole (4). A reinforcing side plate (6) is fixed at the end of the assembly pull plate (5), and a reinforcing screw (8) is inserted into the side plate waist hole (7) opened on the surface of the reinforcing side plate (6).

4. A current transformer with a unidirectional wire-passing structure according to claim 1, characterized in that: An inner bonding plate (11) is installed on the side of the one-way baffle (12), and a connecting pressure plate (9) is fixed at one end of the inner bonding plate (11) away from the one-way baffle (12). The connecting pressure plate (9) and the inner bonding plate (11) form an L-shaped structure. The inner bonding plate (11) and the connecting pressure plate (9) are respectively attached to the inner wall and the front end of the current transformer body (1).

5. A current transformer with a unidirectional wire-passing structure according to claim 3, characterized in that: The surface of the mounting cover plate (2) is provided with mounting threaded holes (10) arranged in annular intervals. The end of the connecting pressure plate (9) covers the mounting threaded holes (10), and the end of the mounting threaded holes (10) is provided with a through hole corresponding to the mounting threaded holes (10).

6. A current transformer with a unidirectional wire-passing structure according to claim 1, characterized in that: The lifting mechanism includes a pull bar (21), a radial limiting groove (22), and a top-through groove (23). The radial limiting groove (22) is opened in the one-way baffle (12), and the top-through groove (23) is opened at the top of the one-way baffle (12) and is connected to the radial limiting groove (22). The pull bar (21) is slidably connected in the groove of the radial limiting groove (22).

7. A current transformer with a unidirectional wire-passing structure according to claim 1, characterized in that: The bottom of the adjusting ramp (20) is rotatably connected to the top of the pulling crossbar (21) by a pin, and the length of the top through groove (23) is less than the length of the radial limiting groove (22).

8. A current transformer with a unidirectional wire-passing structure according to claim 4, characterized in that: The inner bonding plate (11) is provided with a threaded hole (24) and a radial sliding groove (32) communicating with the threaded hole (24). A multi-faceted moving rod (26) and a spiral push rod (25) are respectively connected in the radial sliding groove (32) and the threaded hole (24). The spiral push rod (25) is threadedly connected to the threaded hole (24), and the multi-faceted moving rod (26) is slidably connected in the radial sliding groove (32). A rotating connecting block (27) is rotatably connected to the top of the spiral push rod (25) and the end of the multi-faceted moving rod (26).

9. A current transformer with a unidirectional wire-passing structure according to claim 8, characterized in that: The front end of the multi-faceted moving rod (26) is fixedly provided with a docking rod (31), and the end of the pulling crossbar (21) is fixedly provided with a docking block (28). A rotating connector (29) is rotatably connected inside the docking block (28), and a docking ring (30) sleeved on the outside of the docking rod (31) is fixedly provided on the surface of the rotating connector (29).

10. A current transformer with a unidirectional wire-passing structure according to claim 1, characterized in that: Two sets of rotating connecting plates (34) are fixedly provided on the end face of the one-way baffle part (12) near the inner bonding plate (11). Two sets of plate body connecting parts (33) corresponding to the position of the rotating connecting plates (34) are fixedly provided on the surface of the inner bonding plate (11). A plate body rotating pin (35) is fixedly provided in the groove of the plate body connecting part (33). A round hole is opened on the surface of the rotating connecting plate (34) and sleeved outside the plate body rotating pin (35). A one-way limiting plate (36) is installed diagonally below the plate body rotating pin (35). Multiple sets of arc springs (37) are installed between the bottom of the one-way limiting plate (36) and the rotating connecting plate (34). The surface of the mounting cover part (2) is also provided with an installation groove. A temperature sensor (38) is installed in the installation groove. The detection end of the temperature sensor (38) is close to the outer wall of the current transformer body (1).

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