A high stability current transformer for load interrupter

Abstract

The invention relates to the technical field of current transformers, and discloses a high-stability current transformer for a load interrupter, which solves the problem that the current transformer needs to be disassembled and assembled by repeatedly turning a bolt with a screwdriver, which makes the current transformer inconvenient to disassemble and assemble, and at the same time, the current transformer and the cable are eccentric when installed, thus causing the problem that the cable and the current transformer are not highly compatible. The invention comprises a current transformer body, a through opening is provided on the current transformer body, a cable is passed through the through opening, fastening rods are equidistantly provided on the inner wall of the through opening, a plurality of fastening rods are connected by a gear-type pushing mechanism, a mounting plate is provided at the bottom end of the current transformer body, and mounting rods are symmetrically provided at the top end of the mounting plate; the design clamps and fixes the cable, keeps the axis of the cable coincident with the axis of the through opening, improves the connection concentricity between the current transformer body and the cable, and further improves the installation stability of the cable.

Description

Technical Field

[0001] The invention belongs to the technical field of current transformers, in particular to a high-stability current transformer for a load interrupter. Background Art

[0002] The current transformer on the circuit breaker mainly plays the role of protection, measurement and metering. If the line current is too large and reaches the protection ratio of the current transformer, the current transformer will cooperate with the controller to provide quick-break overcurrent protection, thereby opening the circuit breaker, thus cutting off the current and playing a protective role. The current transformer can convert a larger primary current into a smaller secondary current through a certain ratio, thereby achieving the purpose of protection and measurement. With the development of the current market and the advancement of technology, different types of current transformers have appeared on the market.

[0003] At present, the current transformer is fixed by multiple bolts during installation. When disassembling, it is necessary to repeatedly turn the bolts with a screwdriver to achieve its disassembly and assembly, which makes the current transformer inconvenient to disassemble and assemble. At the same time, the cable runs through the middle of the current transformer. There is an eccentricity between the current transformer and the cable during installation, resulting in low compatibility between the cable and the current transformer. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a high-stability current transformer for a load interrupter, which effectively solves the problem that the current transformer in the above background technology needs to be disassembled and assembled by repeatedly turning the bolts with a screwdriver, which makes the current transformer inconvenient to disassemble and assemble. At the same time, there is eccentricity between the current transformer and the cable during installation, which causes the problem of low compatibility between the cable and the current transformer.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-stability current transformer for a load interrupter, comprising a current transformer body, a through hole is provided on the current transformer body, a cable is passed through the through hole, fastening rods are provided at equal distances on the inner wall of the through hole, a plurality of fastening rods are connected by a gear-type pushing mechanism, a mounting plate is provided at the bottom end of the current transformer body, mounting rods are symmetrically provided at the top end of the mounting plate, a through hole is provided at the bottom end of the current transformer body and is sleeved on the outside of the mounting rods, a locking hole is provided on the side close to the two mounting rods, and the current transformer A first receiving groove is provided inside the body, a second receiving groove located below the first receiving groove is provided at the bottom end of the current transformer body, a sealing plate located at the bottom end of the second receiving groove is provided at the bottom end of the current transformer body, the through opening is connected to the second receiving groove through a connecting groove, the two mounting rods are connected through a locking mechanism, the locking mechanism and the gear-type pushing mechanism are connected through a driving unit, a connecting plate is installed at the top end of one side of the current transformer body, a wire connector is symmetrically provided on one side of the connecting plate, one end of the wire connector is connected to a wire, and the two wires are connected through an anti-drop mechanism;

[0006] The driving unit includes a rotating shaft, a worm wheel, a gear 1, a dual-axis motor 1, a worm and a bevel gear 1. The rotating shaft is rotatably installed on the inner wall of the accommodating groove 1, and the worm wheel and the gear 1 are sleeved on the rotating shaft. The dual-axis motor 1 is installed on the inner top of the accommodating groove 2. One of the output shafts of the dual-axis motor 1 is connected to the worm, and the worm is meshingly connected to the worm wheel. The other output shaft of the dual-axis motor 1 is connected to the bevel gear 1.

[0007] Preferably, the gear-type pushing mechanism includes an extension group and a gear-type rotating group, the extension group includes a movable opening, a push plate, a spring, a movable plate, a slider and a slide groove, the inner wall of the through opening is equidistantly provided with movable openings connected to the accommodating groove one, the fastening rod passes through the interior of the movable opening, the inner wall of the movable opening is symmetrically provided with sliders, the outer wall of the fastening rod is provided with a slide groove slidably connected to the slider, the bottom end of the fastening rod is provided with a push plate located inside the accommodating groove one, one side of the push plate is provided with a movable plate, the other side of the push plate is provided with a spring sleeved on the outside of the fastening rod, one end of the spring is connected to the inner wall of the accommodating groove one, and the movable plate is a triangular structure.

[0008] Preferably, the gear-type rotating group includes a ring gear, a push block, an inclined groove, a stop groove, a stop block and a connecting piece, the ring gear is movably installed inside the accommodating groove one, gear one is meshingly connected to the ring gear, push blocks are equidistantly provided on the inner wall of the ring gear, one side of the push block is provided with an inclined groove slidably connected to the side wall of the movable plate, a stop block is provided at the top of the push block, and one side of the movable plate is provided with a stop groove matched with the stop block.

[0009] Preferably, the connecting member includes a connecting groove and a connecting rod, the connecting grooves are symmetrically opened on both sides of the gear ring, the top and both sides of the inner wall of the accommodating groove are provided with connecting rods, and the inner wall of the connecting rod is provided with a protrusion that is slidably connected to the connecting groove.

[0010] Preferably, a roller is rotatably mounted on the bottom end of the movable plate, the first accommodating groove and the second accommodating groove are connected via symmetrically arranged connecting holes, and stabilizing grooves are equidistantly provided on the outer wall of the gear ring.

[0011] Preferably, the locking mechanism includes an internally threaded barrel, a locking rod, a T-shaped threaded rod, a second bevel gear, a base and a stabilizing group, the internally threaded barrel is slidably installed inside the connecting groove, the internally threaded barrel is inserted with a T-shaped threaded rod, one end of the T-shaped threaded rod is threadedly connected to the internally threaded barrel, one end of the T-shaped threaded rod is provided with a second gear meshingly connected to the first bevel gear, the two internally threaded barrels are provided with locking rods extending to the inside of the lock port at one end away from each other, and the inside of the connecting groove is provided with a base sleeved on the outside of the T-shaped threaded rod.

[0012] Preferably, the stabilization group includes gear 2, a tooth plate, a stabilization rod and a connecting shaft. Gear 2 is sleeved on the two T-shaped threaded rods. One side of gear 2 is meshingly connected with a tooth plate. The tooth plate passes through the interior of the connecting hole, and a stabilization rod is provided at the top of the tooth plate. The stabilization rod extends to the interior of the stabilization groove, and a connecting shaft is provided at the top of the sealing plate and is inserted into the interior of the tooth plate.

[0013] Preferably, the inner walls of the internal threaded barrel and the communicating hole are symmetrically provided with movable blocks, and the inner wall of the communicating groove and the outer wall of the toothed plate are provided with movable grooves slidably connected with the movable blocks.

[0014] Preferably, the anti-falling mechanism includes a third accommodating groove, a second dual-axis motor, a screw, an internal thread block, a sliding mouth and a sliding rod. A third accommodating groove with a side opening is provided on one side of the current transformer body. The second dual-axis motor is installed on the inner wall of the third accommodating groove. The output shafts of the second dual-axis motor are both connected to screws. The screws are both sleeved with internal thread blocks. The internal thread blocks are threadedly connected to the screws. A sliding mouth communicating with the third accommodating groove is provided on the connecting plate. A sliding rod slidably connected to the sliding mouth is provided on one side of the internal thread block. The sliding rod is connected to the side wall of the clamping plate.

[0015] Preferably, the screw rod and the third inner wall of the accommodating groove, the base and the T-shaped threaded rod, and the rotating shaft and the first inner wall of the accommodating groove are all connected through bearings.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) During operation, the cable is clamped and fixed by providing a current transformer body, a through-hole, a cable, a fastening rod, a mounting plate, a through-hole, a mounting rod, a locking mouth, a locking mechanism driving unit and a gear-type pushing mechanism, so that the cable can be clamped and fixed, and the axis of the cable is kept coincident with the axis of the through-hole, thereby improving the concentricity of the connection between the current transformer body and the cable, thereby improving the installation stability of the cable, and at the same time realizing the connection between the current transformer body and the mounting plate, thereby improving the working stability of the current transformer body; through the design of the anti-drop mechanism, the wire is clamped, effectively preventing the wire from being disconnected from the wire joint due to external force, thereby improving the tightness of the connection between the wire and the wire joint, and improving the working stability of the current transformer body.

[0018] (2) Through the design of the movable opening, push plate, spring, movable plate, slider and slide groove, it is easy to adjust the exposed length of the fastening rod in the opening, so that several fastening rods can be used to fasten the cable, thereby improving the connection stability between the current transformer body and the cable;

[0019] (3) Through the design of the gear ring, push block, inclined groove, stop groove, stop block and connector, the movement of the fastening rod is effectively possible, thereby facilitating the fixing of the cable;

[0020] (4) Through the design of the internal threaded cylinder, the locking rod, the T-shaped threaded rod, the bevel gear 2, the base and the stabilizing group, the connection between the locking rod and the mounting rod is effectively realized, and then the connection between the current transformer body and the mounting plate is realized, which effectively facilitates the installation of the current transformer body. This design facilitates the installation of the current transformer body when the fastening rod clamps the cable, thereby improving the convenience of use of the current transformer body;

[0021] (5) Through the design of the rotating shaft, worm gear, gear one, dual-axis motor one, worm and bevel gear one, power is effectively provided for the action of the locking mechanism and the gear-type pushing mechanism;

[0022] (6) The design of the accommodating groove three, the dual-axis motor two, the screw, the internal thread block, the sliding mouth and the sliding rod facilitates the clamping of the wire, improves the connection stability between the wire and the wire connector, reduces the probability of the wire being disconnected from the wire connector due to external force, and improves the connection stability between the wire and the wire connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0024] In the attached picture:

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

[0026] Figure 2 This is a schematic diagram of the external main structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the external side structure of the present invention;

[0028] Figure 4 For the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0029] Figure 5 For the present invention Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0030] Figure 6 It is a schematic diagram of the connection structure between the driving unit and the locking mechanism of the present invention;

[0031] Figure 7 It is a partial structural schematic diagram of the locking mechanism of the present invention;

[0032] Figure 8 For the present invention Figure 3 Schematic diagram of the enlarged structure at C in the middle;

[0033] In the figure: 1, current transformer body; 2, through port; 3, cable; 4, fastening rod; 5, mounting plate; 6, through port; 7, mounting rod; 8, locking port; 9, receiving slot 1; 10, receiving slot 2; 11, sealing plate; 12, connecting plate; 13, wire connector; 14, wire; 15, clamping plate; 16, movable port; 17, push plate; 18, spring; 19, moving plate; 20, slider; 21, slide slot; 22, gear ring; 23, push block; 24, inclined slot; 25, roller; 26, stop slot; 27, stop block; 2 8. Stable groove; 29. ​​Rotating shaft; 30. Worm gear; 31. Gear 1; 32. Dual-axis motor 1; 33. Worm; 34. Bevel gear 1; 35. Gear 2; 36. Tooth plate; 37. Stable plug rod; 38. Plug shaft; 39. Connecting groove; 40. Internal threaded barrel; 41. Lock rod; 42. T-shaped threaded rod; 43. Bevel gear 2; 44. Base; 45. Accommodating groove 3; 46. Dual-axis motor 2; 47. Screw; 48. Internal thread block; 49. Slide; 50. Slide rod; 51. Connecting groove; 52. Connecting rod. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] Embodiment 1, by Figures 1 to 8 The present invention includes a current transformer body 1, a through opening 2 is provided on the current transformer body 1, a cable 3 is passed through the through opening 2, a fastening rod 4 is provided at equal distances on the inner wall of the through opening 2, and a plurality of fastening rods 4 are connected by a gear-type pushing mechanism, a mounting plate 5 is provided at the bottom end of the current transformer body 1, a mounting rod 7 is symmetrically provided at the top end of the mounting plate 5, a through opening 6 which is sleeved on the outside of the mounting rod 7 is provided at the bottom end of the current transformer body 1, a locking opening 8 is provided on the side close to the two mounting rods 7, a receiving groove 9 is provided inside the current transformer body 1, and the current transformer body 1 is provided with a plurality of fastening rods 4. The bottom end is provided with a second accommodating groove 10 located below the first accommodating groove 9, the bottom end of the current transformer body 1 is provided with a sealing plate 11 located at the bottom end of the second accommodating groove 10, the through-port 6 and the second accommodating groove 10 are connected through a connecting groove 39, the two mounting rods 7 are connected by a locking mechanism, the locking mechanism and the gear-type pushing mechanism are connected by a driving unit, a connecting plate 12 is installed at the top of one side of the current transformer body 1, and a wire connector 13 is symmetrically provided on one side of the connecting plate 12, one end of each wire connector 13 is connected to a wire 14, and the two wires 14 are connected by an anti-drop mechanism;

[0036] The driving unit includes a rotating shaft 29, a worm wheel 30, a gear 31, a dual-axis motor 32, a worm 33 and a bevel gear 34. The rotating shaft 29 is rotatably installed on the inner wall of the accommodating groove 9, and the worm wheel 30 and the gear 31 are sleeved on the rotating shaft 29. The dual-axis motor 32 is installed on the inner top of the accommodating groove 10, one of the output shafts of the dual-axis motor 32 is connected to the worm 33, and the worm 33 is meshed with the worm wheel 30, and the other output shaft of the dual-axis motor 32 is connected to the bevel gear 34.

[0037] By starting the dual-axis motor 32, the dual-axis motor 32 will drive the worm 33 to rotate, and the meshing connection between the worm 33 and the worm wheel 30 will cause the worm 33 to rotate, and the worm 33 will drive the rotating shaft 29 to rotate, and the rotating shaft 29 will drive the gear 31 to rotate, and the gear 31 will provide power for the gear-type driving mechanism, so that the fastening rod 4 can clamp the cable 3. At the same time, the dual-axis motor 32 will drive the bevel gear 34 to rotate, and then provide power for the locking mechanism, so that the current transformer body 1 is convenient for connecting with the mounting rod 7 on the mounting plate 5, thereby completing the installation of the current transformer body 1.

[0038] The gear-type pushing mechanism includes an extension group and a gear-type rotating group. The extension group includes a movable opening 16, a push plate 17, a spring 18, a movable plate 19, a slider 20 and a slide groove 21. The inner wall of the through-port 2 is equidistantly provided with a movable opening 16 connected to the receiving groove 19. The fastening rod 4 runs through the inside of the movable opening 16. The inner wall of the movable opening 16 is symmetrically provided with sliders 20. The outer wall of the fastening rod 4 is provided with a slide groove 21 slidably connected with the slider 20. The bottom end of the fastening rod 4 is provided with a push plate 17 located inside the receiving groove 19. A movable plate 19 is provided on one side of the push plate 17. A spring 18 sleeved on the outside of the fastening rod 4 is provided on the other side of the push plate 17. The gear-type rotating group includes a gear ring 22, a push block 23, an inclined groove 24, a stop groove 26, a stop block 27 and a connector. The movable opening 16 in the receiving groove 19 is symmetrically provided with sliders 20. The outer wall of the fastening rod 4 is provided with a slide groove 21 slidably connected with the slider 20. A gear ring 22 is installed on the gear ring 22, and a gear 31 is meshed with the gear ring 22. A push block 23 is equidistantly provided on the inner wall of the gear ring 22. A side of the push block 23 is provided with an inclined groove 24 slidably connected to the side wall of the moving plate 19. A stop block 27 is provided on the top of the push block 23. A stop groove 26 matched with the stop block 27 is provided on one side of the moving plate 19. The connecting piece includes a connecting groove 51 and a connecting rod 52. Connecting grooves 51 are symmetrically provided on both sides of the gear ring 22. Connecting rods 52 are provided on the top and both sides of the inner wall of the accommodating groove 9. The inner wall of the connecting rod 52 is provided with a protrusion slidably connected to the connecting groove 51. A roller 25 is rotatably installed on the bottom end of the moving plate 19. The accommodating groove 19 and the accommodating groove 20 are connected through symmetrically arranged connecting holes. The outer wall of the gear ring 22 is equidistantly provided with stabilizing grooves 28.

[0039] The rotation of gear 1 31 will drive the gear ring 22 to rotate, and the gear ring 22 will drive the connecting groove 51 to rotate, and then the connecting groove 51 will slide in the protrusion on the connecting rod 52, and then the gear ring 22 will drive the push block 23 to move, and the push block 23 will drive the inclined groove 24 to move. Through the sliding connection between the moving plate 19 and the inclined groove 24, the moving plate 19 will drive the push plate 17 to move, and then the push plate 17 will push the fastening rod 4 to slide in the movable opening 16, and then the slide groove 21 will slide outside the slider 20, and at the same time, the spring 18 will be in a compressed state, so as to adjust the length of the fastening rod 4 exposed in the through port 2, so as to make it easier to make the fastening rod 4 slide in the movable opening 16. The tightening rods 4 clamp the cable 3, keeping the cable 3 and the current transformer body 1 in axial overlap, thereby improving the connection stability between the current transformer body 1 and the cable 3. At the same time, when the ring gear 22 continues to rotate, the roller 25 at the bottom of the movable plate 19 will slide on the top of the push block 23, effectively reducing the friction force. At the same time, the stop block 27 at the top of the push block 23 will be engaged in the stop groove 26, thereby achieving the limitation of the movable plate 19, effectively facilitating the movement of the tightening rod 4, and then facilitating the tightening rod 4 to clamp the cable 3, thereby improving the connection stability between the cable 3 and the current transformer body 1.

[0040] The locking mechanism includes an internal threaded barrel 40, a locking rod 41, a T-shaped threaded rod 42, a bevel gear 43, a base 44 and a stabilizing group. The internal threaded barrel 40 is slidably installed inside the connecting groove 39, and the internal threaded barrel 40 is inserted with a T-shaped threaded rod 42. One end of the T-shaped threaded rod 42 is threadedly connected to the internal threaded barrel 40, and one end of the T-shaped threaded rod 42 is provided with a gear 45 meshing with the bevel gear 34. The two internal threaded barrels 40 are provided with a locking rod 41 extending to the inside of the lock port 8 at one end away from each other. The inside of the connecting groove 39 is provided with a base 44 sleeved on the outside of the T-shaped threaded rod 42. The stabilizing group The fixed group includes a second gear 35, a tooth plate 36, a stabilizing plug rod 37 and a plug shaft 38. The two T-shaped threaded rods 42 are sleeved with the second gear 35. One side of the second gear 35 is meshedly connected with the tooth plate 36. The tooth plate 36 runs through the inside of the connecting hole, and the top of the tooth plate 36 is provided with a stabilizing plug rod 37. The stabilizing plug rod 37 extends to the inside of the stabilizing groove 28. The top of the sealing plate 11 is provided with a plug shaft 38 inserted into the inside of the tooth plate 36. The inner threaded barrel 40 and the inner wall of the connecting hole are symmetrically provided with movable blocks. The inner wall of the connecting groove 39 and the outer wall of the tooth plate 36 are provided with movable grooves slidably connected with the movable blocks.

[0041] The rotation of the dual-axis motor 1 32 will drive the bevel gear 1 34 to rotate, and the meshing connection relationship between the bevel gear 1 34 and the bevel gear 2 43 will cause the bevel gear 2 43 to rotate, and the bevel gear 2 43 will drive the T-shaped threaded rod 42 to rotate. Through the meshing connection relationship between the T-shaped threaded rod 42 and the internally threaded barrel 40, and the sliding connection relationship between the matching movable block and the movable groove, the internally threaded barrel 40 will slide on the outside of the T-shaped threaded rod 42, and then the internally threaded barrel 40 will drive the locking rod 41 to slide inside the connecting groove 39, and one end of the locking rod 41 will extend to the locking port 8 outside the mounting rod 7, so as to realize the connection between the locking rod 41 and the mounting rod 7, and then realize the current transformer body. 1 is connected with the mounting plate 5, thereby realizing the installation of the current transformer body 1, and at the same time, the rotation of the T-shaped threaded rod 42 will drive the rotation of the gear 2 35, and the meshing connection relationship between the gear 2 35 and the toothed plate 36 will cause the toothed plate 36 to slide outside the plug-in shaft 38, and then the plug-in shaft 38 will drive the stabilizing plug rod 37 to move upward, and the plug-in shaft 38 will drive the movable groove to slide outside the movable block inside the connecting hole, and then one end of the stabilizing plug rod 37 will extend into the stabilizing groove 28 of the outer wall of the gear ring 22, thereby realizing the fastening of the gear ring 22, effectively improving the stability of the gear ring 22, and thereby avoiding the deflection of the gear ring 22, thereby improving the stable clamping of the cable 3 by the fastening rod 4.

[0042] The anti-falling mechanism includes a accommodating groove three 45, a double-axis motor two 46, a screw rod 47, an internal thread block 48, a sliding port 49 and a sliding rod 50. A accommodating groove three 45 with a side opening is provided on one side of the current transformer body 1. A double-axis motor two 46 is installed on the inner wall of the accommodating groove three 45. The output shafts of the double-axis motor two 46 are connected with screw rods 47. It should be noted here that the threads on the outside of the two screw rods 47 are in opposite directions. The screw rods 47 are sleeved with internal thread blocks 48, and the internal thread blocks 48 are threadedly connected to the screw rods 47. A sliding port 49 connected to the accommodating groove three 45 is provided on the connecting plate 12. A sliding rod 50 slidably connected to the sliding port 49 is provided on one side of the internal thread block 48. The sliding rod 50 is connected to the side wall of the clamping plate 15. The screw rod 47 and the inner wall of the accommodating groove three 45, the base 44 and the T-shaped threaded rod 42, and the rotating shaft 29 and the inner wall of the accommodating groove one 9 are all connected through bearings.

[0043] The staff connects the wire 14 to the wire connector 13, and then starts the dual-axis motor 46. The dual-axis motor 46 will drive the screw rod 47 to rotate. Through the threaded connection relationship between the screw rod 47 and the internal thread block 48 and the sliding connection relationship between the sliding mouth 49 and the sliding rod 50, the internal thread block 48 will move on the screw rod 47, and the two internal thread blocks 48 will move relative to each other. Then the sliding rod 50 will drive the clamping plate 15 to move, and the two clamping plates 15 will clamp the wire 14, thereby improving the connection tightness between the wire 14 and the wire connector 13, avoiding the wire 14 being dragged by external force and causing the wire connector 13 and the wire 14 to be easily disconnected, thereby improving the connection stability between the wire connector 13 and the wire 14, and thereby improving the working stability of the current transformer body 1.

[0044] Working principle: During operation, the staff member passes the cable 3 through the through-port 2 inside the current transformer body 1, and then starts the dual-axis motor 32, which drives the worm 33 to rotate. Through the meshing connection between the worm 33 and the worm wheel 30, the worm 33 is rotated, and the worm 33 drives the rotating shaft 29 to rotate, and the rotating shaft 29 drives the gear 31 to rotate. The rotation of the gear 31 drives the ring gear 22 to rotate, and the ring gear 22 drives the connecting groove 51 to rotate, and then the connecting groove 51 slides in the protrusion on the connecting rod 52, and then the ring gear 22 drives the push block 23 to move, and the push block 23 drives the inclined groove 24 to move, and through the sliding connection between the moving plate 19 and the inclined groove 24, the moving plate 19 drives the push plate 17 to move, and then the push plate 17 pushes the fastening rod 4 in the movable opening 16. The sliding of the slide groove 21 will make it slide outside the slider 20, and the spring 18 will be in a compressed state, so as to adjust the length of the fastening rod 4 exposed in the through hole 2, so as to facilitate the clamping of the cable 3 by several fastening rods 4, and keep the cable 3 and the current transformer body 1 in axial coincidence, so as to improve the connection stability between the current transformer body 1 and the cable 3. At the same time, when the gear ring 22 continues to rotate, the roller 25 at the bottom end of the movable plate 19 will slide on the top end of the push block 23, effectively reducing the friction force, and at the same time, the stop block 27 at the top end of the push block 23 will be engaged in the stop groove 26, so as to achieve the limit of the movable plate 19, effectively facilitating the movement of the fastening rod 4, so as to facilitate the clamping of the cable 3 by the fastening rod 4, and improve the connection stability between the cable 3 and the current transformer body 1;

[0045] At the same time, the dual-axis motor 1 32 will drive the bevel gear 1 34 to rotate, and through the meshing connection relationship between the bevel gear 1 34 and the bevel gear 2 43, the bevel gear 2 43 will rotate, and the bevel gear 2 43 will drive the T-shaped threaded rod 42 to rotate, and through the meshing connection relationship between the T-shaped threaded rod 42 and the internal threaded tube 40, and the sliding connection relationship between the matching movable block and the movable groove, the internal threaded tube 40 will slide on the outside of the T-shaped threaded rod 42, and then the internal threaded tube 40 will drive the locking rod 41 to slide inside the connecting groove 39, and one end of the locking rod 41 will extend to the locking port 8 on the outside of the mounting rod 7, so as to realize the connection between the locking rod 41 and the mounting rod 7, and then realize the current transformer body. 1 is connected with the mounting plate 5, thereby realizing the installation of the current transformer body 1, and at the same time, the rotation of the T-shaped threaded rod 42 will drive the rotation of the gear 2 35, and through the meshing connection relationship between the gear 2 35 and the toothed plate 36, the toothed plate 36 will slide outside the plug-in shaft 38, and then the plug-in shaft 38 will drive the stabilizing plug-in rod 37 to move upward, and at the same time, the plug-in shaft 38 will drive the movable groove to slide outside the movable block inside the connecting hole, and then one end of the stabilizing plug-in rod 37 will extend into the stabilizing groove 28 of the outer wall of the gear ring 22, thereby realizing the fastening of the gear ring 22, effectively improving the stability of the gear ring 22, and avoiding the deflection of the gear ring 22, thereby improving the stable clamping of the cable 3 by the fastening rod 4;

[0046] Then the staff connects the wire 14 to the wire connector 13 and starts the dual-axis motor 46. The dual-axis motor 46 will drive the screw rod 47 to rotate. Through the threaded connection relationship between the screw rod 47 and the internal thread block 48 and the sliding connection relationship between the sliding mouth 49 and the sliding rod 50, the internal thread block 48 will move on the screw rod 47, and the two internal thread blocks 48 will move relative to each other. Then the sliding rod 50 will drive the clamping plate 15 to move, and the two clamping plates 15 will clamp the wire 14, thereby improving the connection tightness between the wire 14 and the wire connector 13, avoiding the wire 14 being dragged by external force and causing the wire connector 13 and the wire 14 to be easily disconnected, thereby improving the connection stability between the wire connector 13 and the wire 14, and improving the working stability of the current transformer body 1.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] 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 high stability current transformer for a load interrupter, comprising a current transformer body (1), characterized in that: The current transformer body (1) is provided with a through opening (2), a cable (3) is passed through the through opening (2), fastening rods (4) are provided at equal intervals on the inner wall of the through opening (2), and a plurality of fastening rods (4) are connected by a gear-type driving mechanism. A mounting plate (5) is provided at the bottom end of the current transformer body (1), mounting rods (7) are symmetrically provided at the top end of the mounting plate (5), a through opening (6) sleeved on the outside of the mounting rods (7) is provided at the bottom end of the current transformer body (1), a locking opening (8) is provided on the adjacent side of the two mounting rods (7), a receiving groove (9) is provided inside the current transformer body (1), and a locking groove (9) is provided at the bottom end of the current transformer body (1). A second accommodating groove (10) is provided below the first accommodating groove (9); a sealing plate (11) is provided at the bottom end of the current transformer body (1) and is located at the bottom end of the second accommodating groove (10); the through opening (6) and the second accommodating groove (10) are connected via a connecting groove (39); the two mounting rods (7) are connected via a locking mechanism; the locking mechanism and the gear-type pushing mechanism are connected via a driving unit; a connecting plate (12) is provided at the top end of one side of the current transformer body (1); a wire connector (13) is symmetrically provided on one side of the connecting plate (12); one end of each wire connector (13) is connected to a wire (14); and the two wires (14) are connected via an anti-drop mechanism; The driving unit comprises a rotating shaft (29), a worm wheel (30), a gear (31), a double-shaft motor (32), a worm (33) and a bevel gear (34); the rotating shaft (29) is rotatably mounted on the inner wall of the receiving groove (9); the worm wheel (30) and the gear (31) are sleeved on the rotating shaft (29); the double-shaft motor (32) is mounted on the inner top of the receiving groove (10); one of the output shafts of the double-shaft motor (32) is connected to the worm (33); the worm (33) is meshed with the worm wheel (30); and the other output shaft of the double-shaft motor (32) is connected to the bevel gear (34).

2. A high stability current transformer for a load interrupter according to claim 1, characterized in that: The gear-type pushing mechanism comprises an extension group and a gear-type rotating group. The extension group comprises a movable opening (16), a push plate (17), a spring (18), a movable plate (19), a slider (20) and a slide groove (21). The inner wall of the through opening (2) is provided with movable openings (16) connected to the receiving groove (9) at equal distances. The fastening rod (4) passes through the inside of the movable opening (16). The inner wall of the movable opening (16) is symmetrically provided with sliders (20). The outer wall of the fastening rod (4) is provided with a slide groove (21) slidably connected to the slider (20). The bottom end of the fastening rod (4) is provided with a push plate (17) located inside the receiving groove (9). The movable plate (19) is provided on one side of the push plate (17). The spring (18) is provided on the other side of the push plate (17) and is sleeved on the outside of the fastening rod (4). One end of the spring (18) is connected to the inner wall of the receiving groove (9). The movable plate (19) is a triangular structure.

3. A high stability current transformer for a load interrupter according to claim 2, characterized in that: The gear type rotating group comprises a ring gear (22), a push block (23), an inclined groove (24), a stop groove (26), a stop block (27) and a connecting piece. The ring gear (22) is movably mounted inside the accommodating groove (9). The gear (31) is meshingly connected with the ring gear (22). The inner wall of the ring gear (22) is provided with push blocks (23) at equal distances. One side of the push block (23) is provided with an inclined groove (24) slidably connected to the side wall of the moving plate (19). The top end of the push block (23) is provided with a stop block (27). One side of the moving plate (19) is provided with a stop groove (26) matched with the stop block (27).

4. A high stability current transformer for a load interrupter according to claim 3, characterized in that: The connecting member comprises a connecting groove (51) and a connecting rod (52), the connecting grooves (51) are symmetrically provided on both sides of the gear ring (22), the top and both sides of the inner wall of the accommodating groove (9) are provided with connecting rods (52), and the inner wall of the connecting rod (52) is provided with a protrusion that is slidably connected to the connecting groove (51).

5. The high stability current transformer for a load interrupter according to claim 2, characterized in that: A roller (25) is rotatably mounted on the bottom end of the movable plate (19); the first accommodating groove (9) and the second accommodating groove (10) are connected via symmetrically arranged connecting holes; and the outer wall of the gear ring (22) is provided with stabilizing grooves (28) at equal distances.

6. A high stability current transformer for a load interrupter according to claim 1, characterized in that: The locking mechanism comprises an internal threaded cylinder (40), a locking rod (41), a T-shaped threaded rod (42), a second bevel gear (43), a base (44) and a stabilizing group. The internal threaded cylinder (40) is slidably mounted inside the connecting groove (39), the internal threaded cylinder (40) is inserted with a T-shaped threaded rod (42), one end of the T-shaped threaded rod (42) is threadedly connected to the internal threaded cylinder (40), one end of the T-shaped threaded rod (42) is provided with a second gear (35) meshingly connected with the first bevel gear (34), the two internal threaded cylinders (40) are provided with locking rods (41) extending to the inside of the lock port (8) at the ends away from each other, and the connecting groove (39) is provided with a base (44) sleeved on the outside of the T-shaped threaded rod (42).

7. A high stability current transformer for a load interrupter according to claim 6, characterized in that: The stabilizing group comprises a second gear (35), a toothed plate (36), a stabilizing plug rod (37) and a plug-in shaft (38); the two T-shaped threaded rods (42) are sleeved with the second gear (35); one side of the second gear (35) is meshingly connected with the toothed plate (36); the toothed plate (36) passes through the interior of the connecting hole; a stabilizing plug rod (37) is provided at the top end of the toothed plate (36); the stabilizing plug rod (37) extends to the interior of the stabilizing groove (28); and a plug-in shaft (38) inserted into the interior of the toothed plate (36) is provided at the top end of the sealing plate (11).

8. The high stability current transformer for a load interrupter according to claim 6, characterized in that: The inner wall of the internal threaded cylinder (40) and the communicating hole are symmetrically provided with movable blocks, and the inner wall of the communicating groove (39) and the outer wall of the toothed plate (36) are both provided with movable grooves slidably connected with the movable blocks.

9. The high stability current transformer for a load interrupter according to claim 1, characterized in that: The anti-falling mechanism comprises a third accommodating groove (45), a second double-axis motor (46), a screw rod (47), an internal thread block (48), a sliding opening (49) and a sliding rod (50). A third accommodating groove (45) with a side opening is provided on one side of the current transformer body (1). The second double-axis motor (46) is installed on the inner wall of the third accommodating groove (45). The output shafts of the second double-axis motor (46) are connected with screw rods (47). The screw rods (47) are sleeved with internal thread blocks (48). The internal thread blocks (48) are threadedly connected to the screw rods (47). A sliding opening (49) connected to the third accommodating groove (45) is provided on the connecting plate (12). A sliding rod (50) slidably connected to the sliding opening (49) is provided on one side of the internal thread block (48). The sliding rod (50) is connected to the side wall of the clamping plate (15).

10. A high stability current transformer for a load interrupter according to claim 9, characterized in that: The screw rod (47) and the inner wall of the third receiving groove (45), the base (44) and the T-shaped threaded rod (42), and the rotating shaft (29) and the inner wall of the first receiving groove (9) are all connected via bearings.

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