Operating mechanism for automatic reclosing device

Abstract

The invention relates to the technical field of circuit breakers, in particular to an operating mechanism for an automatic reclosing device, which comprises a bottom shell and a cover plate, a handle is rotatably arranged in the bottom shell, the operating mechanism further comprises a driving assembly arranged in the bottom shell, a speed reduction transmission mechanism is further arranged in the bottom shell, and the driving assembly is in transmission connection with the speed reduction transmission mechanism; the executing mechanism is movably arranged in the bottom shell and is in transmission connection with the speed reduction transmission mechanism, a sliding rail is fixedly arranged in the bottom shell, the executing mechanism is arranged in the sliding rail in a sliding mode, and according to the operating mechanism for the automatic reclosing device, the arc design of the sliding rail is matched with the rotating track of the handle; by means of the technical scheme, it is ensured that the actuating mechanism can be attached in the whole process when pushing the handle, the situation that the handle is not evenly stressed is avoided, the transmission stability and uniformity are improved, the suckers are arranged on the transmission plates on the two sides of the movable frame, the handle can bear even pulling force and pushing force no matter which side the handle turns during operation, and the service life of the handle is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and more specifically to an operating mechanism for an automatic reclosing device. Background Art

[0002] An automatic reclosing device is an automatic device that automatically closes a switch that has tripped due to a fault as needed. Operating experience of power systems shows that the vast majority of faults in overhead lines are "instantaneous", and permanent faults generally account for less than 10%. Therefore, after a short-circuit fault is removed by the action of relay protection, the arc will automatically go out, and in most cases, the insulation at the short-circuit location can automatically recover. Therefore, automatically reclosing the switch not only improves the safety and reliability of power supply, reduces power outage losses, but also improves the transient level of the power system, increases the power transmission capacity of high-voltage lines, and can also correct mis-tripping caused by switches or relay protection devices.

[0003] Chinese Patent CN103985614B discloses an operating mechanism for an automatic reclosing device, including a switch base, and a motor assembly, a transmission unit, and an execution unit installed on the switch base. The motor drives the transmission unit, and the transmission unit drives the execution unit to pull the closing handle of the switch. The transmission unit includes a sliding push block that can reciprocate linearly relative to the switch base. The sliding push block has a driving part that is close to the execution unit and reciprocates linearly in the same direction as the sliding push block, and an extension part that is connected to the driving part and extends in a direction away from the execution unit. The free end of the extension part is connected to a swing arm that drives the extension part to reciprocate linearly through swinging, and is close to the motor assembly and driven by the motor assembly. Through the setting of the extension part, the position of the motor of the present invention can be far away from the moving contact position below the execution unit, preventing the arc generated when the moving contact moves from burning the motor, and also avoiding the arc from conducting electricity through the iron shell of the motor, improving the stability and reliability of the switch.

[0004] However, when it is in use, although an opening a222 suitable for the closing handle a8 of the switch to pass through is formed in the middle of the clamping part a22, and the closing handle a8 is pushed to swing reciprocally by the clamping part a22, the position of the horizontal axis a221 is fixed. When pushing the closing handle a8, the handle is always stressed on one side and the stressed area remains unchanged. Long-term use is likely to cause wear and even breakage of the handle. For this reason, we propose an operating mechanism for an automatic reclosing device. Summary of the Invention

[0005] To solve the above technical problems, the embodiment of the present application provides an operating mechanism for an automatic reclosing device, including a bottom case and a cover plate. The bottom case and the cover plate are buckled with each other to form a circuit breaker housing. A handle is rotatably provided in the bottom case, and further includes:

[0006] A driving component is arranged inside the bottom shell. A speed reduction transmission mechanism is also arranged inside the bottom shell. The driving component is in transmission connection with the speed reduction transmission mechanism;

[0007] An actuating mechanism is movably arranged inside the bottom shell and is in transmission connection with the speed reduction transmission mechanism. The driving component drives the actuating mechanism to operate the handle through the speed reduction transmission mechanism to realize automatic reclosing. A slide rail is fixedly arranged inside the bottom shell. The slide rail is arc-shaped and is arranged on the side of the handle. The rotation center of the outer contour of the arc of the slide rail coincides with the rotation center of the handle. The actuating mechanism is slidably arranged inside the slide rail.

[0008] In some embodiments, the driving component includes a driving motor arranged inside the bottom shell. A worm is connected to the output end of the driving motor. A driving shaft is rotatably arranged inside the bottom shell. A worm gear meshing with the worm is arranged on the outside of the driving shaft.

[0009] In some embodiments, the speed reduction transmission mechanism includes a synchronizing shaft rotatably arranged at the top end of the driving shaft. A synchronizing gear is arranged on the outside of the synchronizing shaft. A reduction gear meshing with the synchronizing gear is rotatably arranged inside the bottom shell. A rack meshing with the reduction gear is slidably arranged inside the bottom shell;

[0010] A push plate is arranged above the actuating mechanism. The push plate is slidably arranged inside the bottom shell. When the push plate moves, it can drive the actuating mechanism to move along the slide rail. Push blocks are arranged on both sides of one end face of the push plate. Push rods are fixedly arranged on both sides of the rack. When the rack moves, it drives the push plate to move by abutting against the push blocks through the push rods.

[0011] In some embodiments, the actuating mechanism includes a moving frame sleeved outside the handle. A connecting shaft is arranged on one side of the moving frame close to the slide rail. A slider is fixedly arranged on the outside of the connecting shaft. The slider is slidably arranged inside the slide rail. A driving rod is fixedly arranged at the bottom of the push plate. A chute is formed in the driving rod. The connecting shaft is slidably arranged inside the chute.

[0012] In some embodiments, the moving frame includes two transmission plates respectively arranged on both sides of the rotation direction of the handle. Installation plates are arranged at both ends of the transmission plates. The installation plates and the transmission plates are connected end to end to form the moving frame.

[0013] In some embodiments, a notch is formed in the installation plate. Extension blocks are fixedly connected to both ends of the transmission plate. The extension blocks are slidably arranged inside the notch. An adjusting screw rod is rotatably arranged inside one of the installation plates. The adjusting screw rod threadedly penetrates through the extension block. The thread directions on both sides of the middle of the adjusting screw rod are opposite. A guide rod is arranged inside the other installation plate. The guide rod movably penetrates through the extension block. An internal multi-sided hole is formed at the end of the adjusting screw rod. Suction cups are fixedly arranged on the surfaces of both transmission plates close to the handle.

[0014] In some embodiments, a support rod is fixedly disposed on the bottom shell, and the push rod is slidably disposed on the support rod.

[0015] In some embodiments, fixing rods are fixedly provided on both sides of the push plate, a fixing seat is provided in the bottom shell, two fixing seats are provided and are respectively located at the two ends of the push plate, and the fixing rods slide through the fixing seats.

[0016] In some embodiments, a sliding cavity is provided in the pushing block, a piston is slidably arranged in the sliding cavity, a buffer spring is also provided in the sliding cavity, two ends of the buffer spring are respectively connected to the piston and the bottom of the sliding cavity, a slot is provided on the inner side of the sliding cavity, a card block is slidably arranged on the inner side of the piston, a pressure spring is fixedly arranged on the card block, two ends of the pressure spring are respectively fixedly connected to the piston and the card block, the card block is made of magnetic material, and a magnetic plate is fixedly arranged on the bottom shell, two magnetic plates are provided and are respectively arranged at the two ends of the rack, when the card block is facing the magnetic plate, the magnetic plate repels the card block, and the two magnetic plates are respectively located at the extreme positions where the push plate drives the pushing block to move in both directions.

[0017] In some embodiments, a slot is provided in the synchronization shaft, an insertion rod is slidably provided inside the driving shaft, a support spring is fixedly connected to the bottom of the insertion rod, the bottom of the support spring is connected to the driving shaft, a rotating cover is provided on the cover plate via a rotating shaft, the rotating cover and the insertion rod are both made of magnetic materials that attract each other, and a torsion spring is provided on the outside of the rotating shaft of the rotating cover.

[0018] The present invention has at least the following beneficial effects:

[0019] 1. The arc design of the slide rail matches the rotation trajectory of the handle, ensuring that the actuator can fit the handle throughout the entire process when pushing it, avoiding uneven force on the handle and improving the stability and uniformity of the transmission;

[0020] 2. Suction cups are set on the transmission plates on both sides of the moving frame, so that the handle can be subjected to uniform pulling and pushing force no matter which side it turns to during operation, thus extending the service life of the handle;

[0021] 3. The buffer spring and card block design in the push block, as well as the repulsive effect of the magnetic plate on the card block, effectively prevent the occurrence of overshoot and protect the handle and mechanical parts from damage caused by excessive driving force;

[0022] 4. A mechanism is set up for workers to operate manually. In an emergency or when the automatic operation fails, the synchronous shaft can be manually operated to drive the handle to move, which improves the reliability and flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 Schematic diagram of the internal structure of the bottom shell of the present invention;

[0025] Figure 3 The present invention Figure 2 Schematic diagram of the partial structure;

[0026] Figure 4 Schematic diagram of the structure of the drive component and the speed reduction transmission mechanism of the present invention;

[0027] Figure 5 Schematic diagram of the structure at the push plate of the present invention;

[0028] Figure 6 Schematic diagram of the side view structure of the push plate of the present invention;

[0029] Figure 7 Schematic diagram of the structure at the moving frame of the present invention;

[0030] Figure 8 Explosion structure schematic diagram of the moving frame of the present invention;

[0031] Figure 9 Enlarged structure schematic diagram at position A of the present invention;

[0032] Figure 10 Schematic diagram of the structure at the pushing block in Embodiment 2 of the present invention;

[0033] Figure 11 Cross-sectional structure schematic diagram of the pushing block of the present invention;

[0034] Figure 12 Schematic diagram of the structure at the rotating cover of the present invention;

[0035] Figure 13 Specific structure schematic diagram of the rotating cover of the present invention;

[0036] Figure 14 The present invention Figure 12 Partial explosion structure schematic diagram.

[0037] In the figure: 1, bottom shell; 2, cover plate; 3, handle; 4, drive assembly; 41, drive motor; 42, worm; 43, drive shaft; 44, worm wheel; 5, reduction transmission mechanism; 51, synchronous shaft; 52, synchronous gear; 53, reduction gear; 54, rack; 55, push plate; 56, push block; 57, push rod; 6, actuator; 61, moving frame; 611, transmission plate; 612, mounting plate; 613, extension block; 614, Adjusting screw; 615, guide rod; 616, inner polygonal hole; 617, suction cup; 62, connecting shaft; 63, slider; 64, driving rod; 65, slide groove; 7, slide rail; 8, support rod; 9, fixing rod; 10, fixing seat; 11, piston; 12, buffer spring; 13, card slot; 14, card block; 15, pressure spring; 16, magnetic plate; 17, slot; 18, plug rod; 19, support spring; 20, rotating cover; 21, torsion spring. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figures 1 - 9 The present invention provides a technical solution: an operating mechanism for an automatic reclosing device, comprising a bottom shell 1 and a cover plate 2, the bottom shell 1 and the cover plate 2 are buckled together to form a circuit breaker housing, a handle 3 is rotatably arranged in the bottom shell 1, and also includes a driving component 4 arranged in the bottom shell 1, a reduction transmission mechanism 5 is also arranged in the bottom shell 1, the driving component 4 is transmission-connected to the reduction transmission mechanism 5, an actuator 6 transmission-connected to the reduction transmission mechanism 5 is arranged in the bottom shell 1, the driving component 4 drives the actuator 6 to operate the handle 3 through the reduction transmission mechanism 5 to realize automatic reclosing, the driving force of the driving component 4 is made more stable when driving the handle 3 through the reduction transmission mechanism 5, a slide rail 7 is fixedly arranged in the bottom shell 1, the slide rail 7 is arc-shaped and is arranged on the side of the handle 3, the rotation center of the arc-shaped outer contour of the slide rail 7 coincides with the rotation center of the handle 3, the actuator 6 is slidably arranged in the slide rail 7, and then when the actuator 6 moves along the slide rail 7, its trajectory is arc-shaped, and the handle 3 can be driven to rotate along the arc.

[0040] The driving assembly 4 includes a driving motor 41 arranged in the bottom shell 1, and the output end of the driving motor 41 is connected to a worm 42. A driving shaft 43 is rotatably arranged in the bottom shell 1, and a worm wheel 44 meshing with the worm 42 is arranged on the outer side of the driving shaft 43. The driving motor 41 drives the worm 42 to rotate, and the worm 42 meshes with the worm wheel 44 to drive it to rotate, thereby driving the driving shaft 43 to rotate.

[0041] The speed reduction transmission mechanism 5 includes a synchronizing shaft 51 rotatably arranged at the top end of the drive shaft 43. A synchronizing gear 52 is arranged outside the synchronizing shaft 51. A reduction gear 53 meshing with the synchronizing gear 52 is rotatably arranged in the bottom case 1. A rack 54 meshing with the reduction gear 53 is slidably arranged in the bottom case 1. When the drive shaft 43 rotates, it drives the synchronizing shaft 51 to rotate. The synchronizing shaft 51 drives the rack 54 to move through the meshing of the synchronizing gear 52 and the reduction gear 53. Due to the speed reduction effect of the reduction gear 53, the rack 54 moves uniformly and stably.

[0042] A push plate 55 is arranged above the actuator 6. The push plate 55 is slidably arranged in the bottom case 1. When the push plate 55 moves, it can drive the actuator 6 to move along the slide rail 7. Further, the actuator 6 performs an arc-shaped movement to push the handle 3 to open or close the gate. On both sides of one end face of the push plate 55, push blocks 56 are arranged. On both sides of the rack 54, push rods 57 are fixedly arranged. When the rack 54 moves, it drives the push plate 55 to move by abutting against the push blocks 56 through the push rods 57. Further, the push plate 55 drives the actuator 6 to move to operate the handle 3.

[0043] The actuator 6 includes a moving frame 61 sleeved outside the handle 3. On one side of the moving frame 61 close to the slide rail 7, a connecting shaft 62 is arranged. A slider 63 is fixedly arranged outside the connecting shaft 62. The slider 63 is slidably arranged in the slide rail 7. A driving rod 64 is fixedly arranged at the bottom of the push plate 55. A chute 65 is formed in the driving rod 64. The connecting shaft 62 is slidably arranged in the chute 65.

[0044] When the moving frame 61 moves, it can drive the handle 3 to move. And since the moving frame 61 is connected with the slider 63 through the connecting shaft 62, and the slider 63 is slidably arranged in the slide rail 7, the moving frame 61 also moves along the slide rail 7 when moving. Further, its movement track is arc-shaped and can fit the movement track of the handle 3, so that the fitting surface between the inner side of the moving frame 61 and the handle 3 can fully fit the handle 3 when driving the handle 3 to rotate, ensuring the stability and uniformity of the transmission and preventing the handle 3 from being unevenly stressed.

[0045] The moving frame 61 includes two transmission plates 611 respectively arranged on both sides of the rotation direction of the handle 3. Installation plates 612 are arranged at both ends of the transmission plates 611. The installation plates 612 are connected end to end with the transmission plates 611 to form the moving frame 61.

[0046] The mounting plate 612 is provided with notches. Both ends of the transmission plate 611 are fixedly connected with extension blocks 613. The extension blocks 613 are slidably arranged in the notches. An adjusting screw rod 614 is rotatably arranged in one of the mounting plates 612. The adjusting screw rod 614 threadedly penetrates through the extension block 613. The thread directions on both sides of the middle part of the adjusting screw rod 614 are opposite. A guide rod 615 is arranged in the other mounting plate 612. The guide rod 615 movably penetrates through the extension block 613. An internal multi-sided hole 616 is opened at the end of the adjusting screw rod 614. Suction cups 617 are fixedly arranged on the surfaces of both transmission plates 611 close to the handle 3.

[0047] Since the moving frame 61 is sleeved outside the handle 3, when the handle 3 is driven to rotate, in a single operation, only one inner wall of the moving frame 61 is in contact with the handle 3, so that the handle 3 is only stressed on one side each time it is operated. Therefore, in view of this problem, the present application is provided with suction cups 617 on the surfaces of both transmission plates 611 close to the handle 3. The suction cup 617 includes a disc body and a rod body connected to the transmission plate 611 at the rear of the disc body. The rod body is rigid. In order to enable the suction cup 617 to be connected to the surface of the handle 3, the transmission plate 611 is slidably arranged on the mounting plate 612. In this way, by using a tool to turn the internal multi-sided hole 616 at the end of the adjusting screw rod 614, its rotation can be driven, and then the two transmission plates 611 can be driven to approach each other, so that the suction cups 617 on both transmission plates 611 are both suctioned to the handle 3. In this way, when the handle 3 is operated, no matter which side the rotation direction of the handle 3 faces, one side of the suction cup 617 pulls the handle 3, and the other side of the suction cup 617 pushes the handle 3 through the rod body, so that the handle 3 is more evenly stressed and its service life is extended.

[0048] A support rod 8 is fixedly arranged on the bottom shell 1. The push rod 57 is slidably arranged on the support rod 8. The support rod 8 slidably supports the push rod 57 to keep it moving stably.

[0049] Fixing rods 9 are fixedly arranged on both sides of the push plate 55. Fixing seats 10 are arranged in the bottom shell 1. There are two fixing seats 10 and they are respectively located at both ends of the push plate 55. The fixing rods 9 slidably penetrate through the fixing seats 10. The fixing seats 10 play a guiding role for the fixing rods 9 to keep the push plate 55 stable during movement and be able to stably drive the handle 3 to move.

[0050] Embodiment 2: Please refer to Figures 10 - 11, on the basis of Embodiment 1, in order to prevent overshoot, a sliding cavity is formed in the pushing block 56. A piston 11 is slidably arranged in the sliding cavity. A buffer spring 12 is also arranged in the sliding cavity. Two ends of the buffer spring 12 are respectively connected to the piston 11 and the bottom of the sliding cavity. A clamping groove 13 is formed on the inner side of the sliding cavity. A clamping block 14 is slidably arranged on the inner side of the piston 11. A pressing spring 15 is fixedly arranged on the clamping block 14. Two ends of the pressing spring 15 are respectively fixedly connected to the piston 11 and the clamping block 14. The clamping block 14 is made of magnetic material, and a magnetic plate 16 is fixedly arranged on the bottom shell 1. There are two magnetic plates 16 which are respectively arranged at both ends of the rack 54. When the clamping block 14 is opposite to the magnetic plate 16, the magnetic plate 16 repels the clamping block 14. The two magnetic plates 16 are respectively located at the extreme positions of the bidirectional movement of the pushing block 56 driven by the push plate 55;

[0051] When the driving motor 41 drives the handle 3 to move through the worm gear 44, the worm 42 and the gear reduction transmission mechanism 5, if the driving force of the motor is too large or the control is inaccurate, the occurrence of overshoot may occur. In this case, the handle 3 may be subjected to excessive driving force, thereby increasing the risk of fracture. On the other hand, if the handle 3 is worn due to long-term use or other reasons, then even if the driving force of the motor is within the normal range, it may also cause fracture due to insufficient bearing capacity of mechanical components;

[0052] Therefore, in this application, the pushing block 56 is set as a switchable elastic structure. When the push plate 55 drives the push rod 57 to push the pushing block 56 to move, when the pushing block 56 moves to its extreme position, at this time, the push plate 55 also drives the handle 3 to complete opening or closing through the actuator 6. And when the pushing block 56 is at its extreme position, at this time, the magnetic plate 16 and the clamping block 14 cooperate with each other. The magnetic plate 16 repels the clamping block 14 to make it move. The clamping block 14 contracts into the piston 11. At this time, the piston 11 can contract into the sliding cavity. At this time, even if the motor still has driving force to drive the push rod 57 to continue to move, the push rod 57 will squeeze the piston 11 to move and will not apply the acting force to the handle 3.

[0053] Embodiment 3: Please refer to Figures 12 - 14 , on the basis of Embodiment 1, in order to realize manual operation in case of emergency, a mechanism for manual operation by workers is provided in this embodiment. A slot 17 is formed in the synchronous shaft 51. A plug rod 18 is slidably arranged inside the driving shaft 43. A support spring 19 is fixedly connected to the bottom of the plug rod 18. The bottom of the support spring 19 is connected to the driving shaft 43. A rotating cover 20 is rotatably arranged on the cover plate 2 through a rotating shaft. Both the rotating cover 20 and the plug rod 18 are made of magnetic materials that attract each other. A torsion spring 21 is arranged on the outer side of the rotating shaft of the rotating cover 20;

[0054] Under normal circumstances, the cover plate 2 is buckled with the bottom shell 1. At this time, the rotating cover 20 is located above the synchronization shaft 51. The rotating cover 20 and the insertion rod 18 are attracted to drive the insertion rod 18 to move up and insert into the slot 17 in the synchronization shaft 51, so that the driving shaft 43 drives the synchronization shaft 51 to rotate when it rotates. When manual operation is required, the worker opens the rotating cover 20. At this time, under the reset action of the support spring 19, the insertion rod 18 is disengaged from the slot 17, and then a tool is used to insert it into the slot 17 to drive the synchronization shaft 51 to rotate, and then the push plate 55 is driven to move through the synchronization gear 52, the reduction gear 53 and the rack 54, thereby operating the handle 3.

[0055] 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. An operating mechanism for an automatic reclosing device, comprising a bottom shell (1) and a cover plate (2), wherein the bottom shell (1) and the cover plate (2) are mutually buckled to form a circuit breaker housing, and a handle (3) is rotatably arranged in the bottom shell (1), characterized in that: Also included are: A drive assembly (4) is arranged in the bottom shell (1), a reduction transmission mechanism (5) is also arranged in the bottom shell (1), and the drive assembly (4) is in driving connection with the reduction transmission mechanism (5); An actuator (6) is movably arranged in a bottom shell (1) and is transmission-connected to a reduction transmission mechanism (5); the driving assembly (4) drives the actuator (6) to operate a handle (3) through the reduction transmission mechanism (5) to realize automatic reclosing; a slide rail (7) is fixedly arranged in the bottom shell (1); the slide rail (7) is arc-shaped and arranged on the side of the handle (3); the rotation center of the arc-shaped outer contour of the slide rail (7) coincides with the rotation center of the handle (3); and the actuator (6) is slidably arranged in the slide rail (7).

2. The operating mechanism for an automatic reclosing device according to claim 1, characterized in that: The driving assembly (4) comprises a driving motor (41) arranged in a bottom shell (1), the output end of the driving motor (41) being connected to a worm (42), a driving shaft (43) being rotatably arranged in the bottom shell (1), and a worm wheel (44) meshing with the worm (42) being arranged on the outside of the driving shaft (43).

3. The operating mechanism for an automatic reclosing device according to claim 2, characterized in that: The reduction transmission mechanism (5) comprises a synchronization shaft (51) rotatably arranged at the top end of the driving shaft (43), a synchronization gear (52) being arranged outside the synchronization shaft (51), a reduction gear (53) rotatably arranged in the bottom shell (1) and meshing with the synchronization gear (52), and a rack (54) slidably arranged in the bottom shell (1) and meshing with the reduction gear (53); A push plate (55) is arranged above the actuator (6). The push plate (55) is slidably arranged in the bottom shell (1). When the push plate (55) moves, it can drive the actuator (6) to move along the slide rail (7). Push blocks (56) are arranged on both sides of one end surface of the push plate (55). Push rods (57) are fixedly arranged on both sides of the rack (54). When the rack (54) moves, the push rods (57) abut against the push blocks (56) to drive the push plate (55) to move.

4. The operating mechanism for an automatic reclosing device according to claim 3, characterized in that: The actuator (6) comprises a moving frame (61) sleeved on the outside of the handle (3); a connecting shaft (62) is provided on the side of the moving frame (61) close to the slide rail (7); a sliding block (63) is fixedly provided on the outside of the connecting shaft (62); the sliding block (63) is slidably provided in the slide rail (7); a driving rod (64) is fixedly provided at the bottom of the push plate (55); a sliding groove (65) is provided on the driving rod (64); and the connecting shaft (62) is slidably provided in the sliding groove (65).

5. The operating mechanism for an automatic reclosing device according to claim 4, characterized in that: The moving frame (61) comprises two transmission plates (611) respectively arranged on both sides of the rotation direction of the handle (3), and mounting plates (612) are arranged at both ends of the transmission plate (611). The mounting plates (612) and the transmission plates (611) are connected end to end to form the moving frame (61).

6. The operating mechanism for an automatic reclosing device according to claim 5, characterized in that: The mounting plate (612) is provided with a slot, and both ends of the transmission plate (611) are fixedly connected with extension blocks (613), and the extension blocks (613) are slidably arranged in the slots. An adjusting screw rod (614) is rotatably arranged in one of the mounting plates (612), and the adjusting screw rod (614) is threadedly penetrated through the extension block (613). The threads on both sides of the middle of the adjusting screw rod (614) are in opposite directions. A guide rod (615) is arranged in the other mounting plate (612), and the guide rod (615) movably penetrates the extension block (613). An inner polygonal hole (616) is arranged at the end of the adjusting screw rod (614), and a suction cup (617) is fixedly arranged on one side of the two transmission plates (611) close to the handle (3).

7. The operating mechanism for an automatic reclosing device according to claim 3, characterized in that: A support rod (8) is fixedly arranged on the bottom shell (1), and the push rod (57) is slidably arranged on the support rod (8).

8. The operating mechanism for an automatic reclosing device according to claim 3, characterized in that: Fixed rods (9) are fixedly arranged on both sides of the push plate (55), and a fixed seat (10) is arranged in the bottom shell (1). Two fixed seats (10) are arranged and are respectively located at the two ends of the push plate (55), and the fixed rods (9) slide through the fixed seats (10).

9. The operating mechanism for an automatic reclosing device according to claim 3, characterized in that: A sliding cavity is provided in the push block (56), a piston (11) is slidably provided in the sliding cavity, a buffer spring (12) is also provided in the sliding cavity, two ends of the buffer spring (12) are respectively connected to the piston (11) and the bottom of the sliding cavity, a card slot (13) is provided on the inner side of the sliding cavity, a card block (14) is slidably provided on the inner side of the piston (11), a pressure spring (15) is fixedly provided on the card block (14), and two ends of the pressure spring (15) are respectively connected to the piston (11) and the bottom of the sliding cavity. The piston (11) and the block (14) are fixedly connected. The block (14) is made of magnetic material. A magnetic plate (16) is fixedly arranged on the bottom shell (1). Two magnetic plates (16) are arranged and are respectively arranged at two ends of the rack (54). When the block (14) and the magnetic plate (16) are facing each other, the magnetic plate (16) repels the block (14). The two magnetic plates (16) are respectively located at the extreme positions where the push plate (55) drives the push block (56) to move in both directions.

10. The operating mechanism for an automatic reclosing device according to claim 3, characterized in that: A slot (17) is provided in the synchronization shaft (51), an insertion rod (18) is slidably provided inside the driving shaft (43), a support spring (19) is fixedly connected to the bottom of the insertion rod (18), and the bottom of the support spring (19) is connected to the driving shaft (43), a rotating cover (20) is rotatably provided on the cover plate (2) via a rotating shaft, the rotating cover (20) and the insertion rod (18) are both made of magnetic materials that attract each other, and a torsion spring (21) is provided on the outer side of the rotating shaft of the rotating cover (20).

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