A switch-on and switch-off drive mechanism for a high-voltage vacuum circuit breaker

Abstract

The present invention discloses a switch-on and switch-off drive mechanism for a high-voltage vacuum circuit breaker, which belongs to the technical field of circuit breakers, and comprises a box body and a vacuum chamber, wherein the vacuum chamber is mounted on the box body, and the vacuum chamber is arranged in multiple groups; a wiring port, wherein the wiring port is fixedly mounted on the side surface of the vacuum chamber, and each group of vacuum chambers is equipped with two groups of wiring ports, and the two groups of wiring ports are arranged up and down; a conductive plate, wherein the conductive plate is mounted inside the wiring port, and one end of the conductive plate extends into the vacuum chamber; and a first conductive column, wherein the upper end of the first conductive column is fixedly connected to a conductive plate of a group at the upper end. The present invention can realize that when closing or opening the switch, the initial speed is fast, and the speed becomes slower in the later stage. When performing the closing and opening operation, the initial speed is fast, and the rapid dynamic change can effectively reduce the generation of arcs, and the later speed becomes slower, which can avoid the problem that the excessive closing and opening speed causes excessive impact on the overall structure of the circuit breaker.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and more particularly to an opening and closing drive mechanism for a high-voltage vacuum circuit breaker. Background Art

[0002] High-voltage vacuum circuit breakers are key equipment in power systems. One of their core components, the gate opening and closing drive mechanism, is responsible for controlling the precise opening and closing of the circuit breaker. Traditionally, gate opening and closing drive mechanisms are of various types, including electromagnetic operating mechanisms, pneumatic operating mechanisms, hydraulic operating mechanisms, spring operating mechanisms, and permanent magnetic operating mechanisms, each of which has unique advantages and limitations. For example, the electromagnetic operating mechanism is known for its simple structure, but it performs poorly in terms of electromagnetic stability; although the pneumatic operating mechanism has a stable mechanical structure, it faces complex installation and potential airtightness problems; the hydraulic operating mechanism can provide a strong driving force, but its structure is complex and there is a risk of oil leakage, and the maintenance cost is high.

[0003] In actual applications, these drive mechanisms drive the contacts in the circuit breaker to contact and separate quickly and accurately through precise control to realize the on and off of the circuit. Rapid opening and closing operations are crucial to reducing arc generation. It can effectively shorten the existence time of the arc between the contacts, thereby reducing the thermal erosion and electrical wear of the contacts by the arc. However, this rapid action also brings side effects that cannot be ignored. For example, the high-speed collision between the contacts generates a large impact force, which can easily lead to surface damage, wear, dents and even rupture of the contacts over a long period of time, thereby affecting the conductivity and contact reliability of the contacts. Poor contact will not only increase resistance and cause local overheating, but may also cause more serious electrical failures.

[0004] In addition, the strong mechanical impact generated during the rapid opening and closing process will also affect the entire circuit breaker structure, causing it to vibrate and shake. Under long-term action, it will accelerate the loosening, wear and even failure of the internal parts of the circuit breaker, shortening the service life of the equipment.

[0005] In view of this, in view of the above-mentioned deficiencies, the present invention improves and optimizes the circuit breaker opening and closing drive mechanism in the prior art, and develops an opening and closing drive mechanism for a high-voltage vacuum circuit breaker. Summary of the invention

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide an opening and closing drive mechanism for a high-voltage vacuum circuit breaker, which can achieve a fast initial speed and a slower speed in the later stage when closing or opening the circuit breaker. The fast initial speed and rapid dynamic changes during closing and opening operations can effectively reduce the generation of electric arcs, and the slower speed in the later stage can avoid the problem of excessive impact on the overall structure of the circuit breaker caused by excessive opening and closing speeds.

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A high-voltage vacuum circuit breaker opening and closing drive mechanism, comprising:

[0009] A box body and a vacuum chamber, wherein the vacuum chamber is mounted on the box body and the vacuum chamber is arranged in multiple groups;

[0010] Wiring ports, the wiring ports are fixedly mounted on the side surface of the vacuum chamber, and two groups of wiring ports are mounted on each group of vacuum chambers, and the two groups of wiring ports are arranged up and down;

[0011] A conductive plate, the conductive plate being installed inside the wiring port, and one end of the conductive plate extending into the vacuum chamber;

[0012] A first conductive column, wherein the upper end of the first conductive column is fixedly connected to a conductive plate of an upper end group;

[0013] A second conductive column, the lower end of which penetrates through a group of conductive plates and the box at the lower end in sequence and extends to the inside of the box, and the first conductive column and the second conductive column are both arranged in the vacuum chamber;

[0014] A movable plate, wherein the movable plate is fixedly mounted on the lower end of the second conductive column;

[0015] A fixed block, wherein the fixed block is fixedly mounted on a side of the movable plate;

[0016] An extrusion head, which is fixedly mounted at the upper and lower ends of the fixed block;

[0017] An upper speed reducer, which is arranged above a group of extrusion heads at the upper end, and includes an upper fixed cylinder, which is fixedly connected to the inner wall of the box body, a barrier ring is fixedly connected to the lower opening of the upper fixed cylinder, an upper push sheet is arranged in the upper fixed cylinder, and a connection block is fixedly connected to the edge of the upper push sheet;

[0018] A lower speed reducer is arranged below a group of extrusion heads at the lower end, and includes a lower fixed cylinder, in which a lower push plate is arranged, and a gap is left between the lower push plate and the inner wall of the lower fixed cylinder for liquid to flow, and a floating block column is fixedly connected to the upper end of the lower push plate, and the upper end of the floating block column movably passes through the lower fixed cylinder and extends to the outside, and there is liquid in the lower fixed cylinder.

[0019] Further, including:

[0020] A motor, wherein the motor is installed inside the box;

[0021] A pinion gear, the pinion gear being mounted on an output shaft of the motor;

[0022] A large gear, the large gear being meshed and connected with the small gear;

[0023] A rocking rod, which is fixedly mounted on the large gear and close to the edge;

[0024] An extrusion sleeve, wherein the extrusion sleeve is sleeved on the rocking rod;

[0025] A lifting plate, wherein the lifting plate is mounted on the extrusion sleeve;

[0026] a first force storage spring, wherein the lower end of the first force storage spring is fixedly connected to the lifting plate, and the upper end of the first force storage spring is fixedly connected to the inner wall of the box body;

[0027] a first return spring, the first return spring being disposed in the lifting plate;

[0028] A telescopic plate, wherein the telescopic plate is sleeved in the lifting plate, and one end of the telescopic plate is fixedly connected to the first return spring, and one end of the telescopic plate away from the first return spring penetrates the lifting plate and extends to the outside;

[0029] A ramp block, the ramp block being mounted on the upper end of the telescopic plate;

[0030] An extrusion column, wherein the extrusion column is arranged on the inclined surface of the inclined surface block;

[0031] A connecting plate, wherein the connecting plate is mounted on a side of the moving plate;

[0032] A reversing plate, the reversing plate being rotatably connected to an end of the connecting plate away from the moving plate;

[0033] A first torsion spring, wherein the first torsion spring is installed at the rotation connection between the reversal plate and the connecting plate, one end of the first torsion spring is fixedly connected to the reversal plate, and the other end is fixedly connected to the connecting plate;

[0034] A limit block, the limit block is fixedly connected to the upper end of the connecting plate;

[0035] A second force storage spring is installed at the lower end of the moving plate, and the lower end of the second force storage spring is fixedly connected to the inner wall of the box body.

[0036] Further, including:

[0037] A first triggering member, wherein the first triggering member is installed in the box body and the first triggering member is arranged below the moving plate;

[0038] A first locking member, the first locking member is mounted on the extrusion sleeve, and the first locking member is used to lock the extrusion sleeve on the first trigger member;

[0039] A second triggering member, which is installed in the box and located above the moving plate. The second triggering member has the same structure as the first triggering member, and the installation directions of the second triggering member and the first triggering member are opposite;

[0040] A first support plate, wherein the first support plate is fixedly connected to the second trigger member, and one end of the first support plate is fixedly connected to the inner wall of the box body;

[0041] A second locking member, which is disposed below the second trigger member and is used to lock the movable plate on the second trigger member. The second locking member has the same structure as the first locking member, and the installation directions of the two members are opposite;

[0042] A connecting rod is installed on the second locking piece, and one end of the connecting rod away from the second locking piece is fixedly connected to the movable plate.

[0043] Further, the first locking member comprises:

[0044] An L-shaped plate, wherein the L-shaped plate is fixedly connected to the extrusion sleeve;

[0045] A mounting block, the mounting block being fixedly mounted on the side surface of the L-shaped plate near the lower end;

[0046] A folding plate, the folding plate is rotatably mounted on the mounting block;

[0047] A second torsion spring, wherein the second torsion spring is installed at the rotation connection between the folding plate and the mounting block, one end of the second torsion spring is fixedly connected to the folding plate, and the other end of the second torsion spring is fixedly connected to the mounting block;

[0048] The blocking plate is arranged below the folding plate, and one end of the blocking plate is fixedly connected to the L-shaped plate.

[0049] Furthermore, the first triggering member includes:

[0050] A box body and a coil, wherein the coil is arranged in the box body;

[0051] An iron pipe installed in the coil;

[0052] A telescopic column, wherein the telescopic column is arranged in the iron pipe, and both ends of the telescopic column are movable through the box body and extend to the outside;

[0053] A second return spring, wherein the second return spring is sleeved on the telescopic column and is located in the box body;

[0054] A permanent magnet block is fixedly connected to the side surface of the telescopic column, and the permanent magnet block is located at the right end of the second reset spring.

[0055] Furthermore, the first triggering member further includes:

[0056] A trigger rod, the trigger rod is arranged below the box body, and the right end of the trigger rod movably penetrates the side wall of the box body and extends to the outside;

[0057] A fixing plate, two ends of which are fixedly connected to the trigger rod and the telescopic column respectively.

[0058] Further, including:

[0059] A rotating rod mounted on a side surface of the large gear;

[0060] A first indicator plate, wherein the first indicator plate is arranged above the rotating rod, and an observation port is formed through the box body at a position corresponding to the first indicator plate;

[0061] a third return spring, wherein the lower end of the third return spring is fixedly connected to the first indicator plate;

[0062] A second support plate, wherein the second support plate is fixedly mounted on the upper end of the third return spring, and the second support plate is fixedly connected to the inner wall of the box body;

[0063] A triangular block, the triangular block being fixedly connected to the lower end of the first indicator plate;

[0064] The first limiting strip is arranged on the left and right sides of the first indicating plate, and the first limiting strip is fixedly connected to the inner wall of the box body.

[0065] Further, including:

[0066] A second indicator plate, the second indicator plate is arranged at the same height as the first indicator plate, and an observation port is opened at a position of the side wall of the box body corresponding to the second indicator plate;

[0067] a fourth return spring, wherein the lower end of the fourth return spring is fixedly connected to the second indicator plate;

[0068] A third support plate, wherein the third support plate is fixedly connected to the upper end of the fourth return spring, and the third support plate is fixedly connected to the inner wall of the box body;

[0069] A push rod, the push rod is fixedly connected to the side of the second indicator plate;

[0070] The second limiting strip is arranged on a side of the second indicating plate away from the top rod, and the second limiting strip is fixedly connected to the inner wall of the box body.

[0071] Further, including:

[0072] A fixing sleeve is installed at the center of the pinion gear, and one end of the fixing sleeve movably penetrates the side wall of the box body and extends to the outside.

[0073] Further, including:

[0074] A limit plate, which is arranged on the left and right sides of the lifting plate, and the upper and lower ends of the limit plate are fixedly connected to the inner wall of the box body;

[0075] The mounting plate is mounted on the upper end of the extrusion column and is fixedly connected to the limiting plate.

[0076] Compared with the prior art, the present invention has the following beneficial effects:

[0077] This solution has a fast initial speed when closing or opening the circuit breaker, and a slow speed at a later stage. The fast initial speed and rapid dynamic changes during closing and opening operations can effectively reduce the generation of arcs, and the slow speed at a later stage can avoid the problem of excessive impact on the overall structure of the circuit breaker caused by excessive opening and closing speeds;

[0078] The fast and smooth opening and closing action also helps to reduce the noise and vibration generated during operation. The design of gradual deceleration after high-speed start avoids the mechanical impact noise and vibration caused by sudden stop, making the working environment quieter and reducing the potential damage to the surrounding structure of the equipment due to long-term vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0080] Figure 1 This is an appearance view of the overall structure of the present invention;

[0081] Figure 2 It is a back view of the overall structure of the present invention;

[0082] Figure 3 It is a schematic diagram of the internal structure of the box body of the present invention;

[0083] Figure 4 It is a structural schematic diagram of the upper speed reducing member and the lower speed reducing member of the present invention;

[0084] Figure 5 is a cross-sectional view of the interior of the vacuum chamber of the present invention;

[0085] Figure 6 This is an internal display diagram of the upper speed reducer of the present invention;

[0086] Figure 7 This is an internal display diagram of the lower speed reducer of the present invention;

[0087] Figure 8 It is a structural schematic diagram of the large gear of the present invention;

[0088] Fig. 9 It is a structural schematic diagram of the rocking rod of the present invention;

[0089] Fig.10 It is a structural schematic diagram of the inclined surface block of the present invention;

[0090] Fig.11 It is a cross-sectional view of the interior of the lifting plate of the present invention;

[0091] Fig.12 It is a structural schematic diagram of the connecting plate of the present invention;

[0092] Fig.13 is a schematic structural diagram of the first locking member of the present invention;

[0093] Fig.14 is a schematic structural diagram of the first trigger member of the present invention;

[0094] Fig.15 It is a structural schematic diagram of the first indicator plate of the present invention;

[0095] Fig.16 It is a schematic structural diagram of the extrusion column of the present invention.

[0096] Description of the numbers in the figure:

[0097] 1. Box; 2. Vacuum chamber; 3. Wiring port; 4. Conductive plate; 5. First conductive column; 6. Second conductive column; 7. Moving plate; 8. Fixed block; 9. Extrusion head;

[0098] 10. Upper speed reducer; 101. Upper fixing cylinder; 102. Blocking ring; 103. Upper push piece; 104. Connecting block;

[0099] 11. lower speed reducing member; 111. lower fixing cylinder; 112. lower push piece; 113. floating block column;

[0100] 12. Motor; 13. Small gear; 14. Large gear; 15. Rocking rod; 16. Extrusion sleeve; 17. Lifting plate; 18. First return spring; 19. Telescopic plate; 20. Limiting plate; 21. Inclined block; 22. Extrusion column; 23. Mounting plate; 24. First force storage spring; 25. Connecting plate; 26. First torsion spring; 27. Reversing plate; 28. Limiting block; 29. ​​Second force storage spring;

[0101] 30, first locking member; 301, L-shaped plate; 302, mounting block; 303, second torsion spring; 304, blocking plate; 305, folding plate;

[0102] 31. second triggering member; 32. second locking member;

[0103] 33, first trigger member; 331, trigger rod; 332, fixing plate; 333, telescopic column; 334, box body; 335, permanent magnet block; 336, second return spring; 337, coil; 338, iron pipe;

[0104] 34. First support plate; 35. Connecting rod; 36. Rotating rod; 37. First indicator plate; 38. Triangular block; 39. Third return spring; 40. Second support plate; 41. First limit strip; 42. Push rod; 43. Second indicator plate; 44. Fourth return spring; 45. Third support plate; 46. Second limit strip; 47. Fixed sleeve. DETAILED DESCRIPTION

[0105] 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; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0106] See also Figures 1 to 16, a switch opening and closing drive mechanism of a high-voltage vacuum circuit breaker, comprising a box body 1 and a vacuum chamber 2, the vacuum chamber 2 is mounted on the box body 1, and the vacuum chamber 2 is arranged in multiple groups; a wiring port 3, the wiring port 3 is fixedly mounted on the side surface of the vacuum chamber 2, and two groups of wiring ports 3 are mounted on each group of vacuum chambers 2, and the two groups of wiring ports 3 are arranged up and down; a conductive plate 4, the conductive plate 4 is mounted inside the wiring port 3, and one end of the conductive plate 4 extends into the vacuum chamber 2; a first conductive column 5, the upper end of the first conductive column 5 is fixedly connected to the conductive plate 4 of the upper end group; a second conductive column 6, the lower end of the second conductive column 6 penetrates the conductive plate 4 of the lower end group and the box body 1 in sequence, and extends to the inside of the box body 1, and the first conductive column 5 and the second conductive column 6 are both arranged in the vacuum chamber 2; a moving plate 7, the moving plate 7 is fixedly mounted on the lower end of the second conductive column 6; a fixed block 8, the fixed block 8 is fixedly mounted on the side of the moving plate 7; an extrusion head 9, an extrusion head The head 9 is fixedly installed at the upper and lower ends of the fixed block 8; the upper speed reducer 10 is arranged above a group of extrusion heads 9 at the upper end, the upper speed reducer 10 includes an upper fixed cylinder 101, the upper fixed cylinder 101 is fixedly connected to the inner wall of the box body 1, and a barrier ring 102 is fixedly connected to the lower end opening of the upper fixed cylinder 101, an upper push piece 103 is arranged in the upper fixed cylinder 101, and a connecting block 104 is fixedly connected at the edge of the upper push piece 103; the lower speed reducer 11, the lower speed reducer 11 is arranged below a group of extrusion heads 9 at the lower end, the lower speed reducer 11 includes a lower fixed cylinder 111, a lower push piece 112 is arranged in the lower fixed cylinder 111, and a gap is left between the lower push piece 112 and the inner wall of the lower fixed cylinder 111 for liquid to flow, and the upper end of the lower push piece 112 is fixedly connected to a floating block column 113, and the upper end of the floating block column 113 movably passes through the lower fixed cylinder 111 and extends to the outside, and there is liquid in the lower fixed cylinder 111;

[0107] Motor 12, motor 12 is installed inside the box body 1; pinion 13, pinion 13 is installed on the output shaft of motor 12; large gear 14, large gear 14 is meshed with pinion 13; rocking rod 15, rocking rod 15 is fixedly installed on large gear 14, and is close to the edge position; extrusion sleeve 16, extrusion sleeve 16 is sleeved on rocking rod 15; lifting plate 17, lifting plate 17 is installed on extrusion sleeve 16; first force storage spring 24, the lower end of first force storage spring 24 is fixedly connected with lifting plate 17, and the upper end of first force storage spring 24 is fixedly connected with the inner wall of box body 1; first return spring 18, the first return spring 18 is arranged in lifting plate 17; telescopic plate 19, telescopic plate 19 is sleeved in lifting plate 17, and one end of telescopic plate 19 is fixedly connected with the first return spring 18, and telescopic plate 19 is far One end of the first return spring 18 passes through the lifting plate 17 and extends to the outside; an inclined plane block 21, the inclined plane block 21 is installed at the upper end of the telescopic plate 19; an extrusion column 22, the extrusion column 22 is arranged on the inclined plane of the inclined plane block 21; a connecting plate 25, the connecting plate 25 is installed on the side of the movable plate 7; a reversal plate 27, the reversal plate 27 is rotatably connected to the end of the connecting plate 25 away from the movable plate 7; a first torsion spring 26, the first torsion spring 26 is installed at the rotational connection between the reversal plate 27 and the connecting plate 25, one end of the first torsion spring 26 is fixedly connected to the reversal plate 27, and the other end is fixedly connected to the connecting plate 25; a limit block 28, the limit block 28 is fixedly connected to the upper end of the connecting plate 25; a second force storage spring 29, the second force storage spring 29 is installed at the lower end of the movable plate 7, and the lower end of the second force storage spring 29 is fixedly connected to the inner wall of the box body 1;

[0108] A first trigger member 33, the first trigger member 33 is installed in the box body 1, and the first trigger member 33 is arranged below the moving plate 7; a first locking member 30, the first locking member 30 is installed on the extrusion sleeve 16, and the first locking member 30 is used to lock the extrusion sleeve 16 on the first trigger member 33; a second trigger member 31, the second trigger member 31 is installed in the box body 1, and is located above the moving plate 7, the second trigger member 31 has the same structure as the first trigger member 33, and the installation directions of the two are opposite; a first support plate 34, the first support plate 3 4 is fixedly connected to the second trigger member 31, and one end of the first support plate 34 is fixedly connected to the inner wall of the box body 1; the second locking member 32, the second locking member 32 is arranged below the second trigger member 31, and the second locking member 32 is used to lock the movable plate 7 on the second trigger member 31. The second locking member 32 has the same structure as the first locking member 30, and the installation directions of the two are opposite; the connecting rod 35, the connecting rod 35 is installed on the second locking member 32, and one end of the connecting rod 35 away from the second locking member 32 is fixedly connected to the movable plate 7;

[0109] The limit plate 20 is arranged on the left and right sides of the lifting plate 17, and the upper and lower ends of the limit plate 20 are fixedly connected to the inner wall of the box body 1; the mounting plate 23 is installed on the upper end of the extrusion column 22, and the mounting plate 23 is fixedly connected to the limit plate 20.

[0110] By adopting the above technical solution, when in use, first connect the wire to the wiring port 3 to electrically connect the wire to the conductive plate 4. When it is necessary to close the switch, turn on the motor 12, and the motor 12 drives the small gear 13 to rotate. When the small gear 13 rotates, it will drive the large gear 14 to rotate. When the large gear 14 rotates, it will drive the shaking rod 15 to rotate together. When the shaking rod 15 rotates, it will move from the right end to the left end of the extrusion sleeve 16. At the same time, the shaking rod 15 will also squeeze the inner wall of the extrusion sleeve 16 downward, thereby driving the extrusion sleeve 16 to move downward. Because the extrusion sleeve 16 is fixedly connected to the lifting plate 17, when the extrusion sleeve 16 moves downward, it will drive the lifting plate 17 to move downward together. When the lifting plate 17 moves downward, it will drive the telescopic plate 19 to move synchronously. When the lifting plate 17 moves downward, When the telescopic plate 19 moves downward, the first force storage spring 24 will be stretched, and finally the telescopic plate 19 will move to the top of the reversing plate 27. As the telescopic plate 19 continues to move downward, the telescopic plate 19 will push the reversing plate 27 to flip downward, and at the same time, the reversing plate 27 will drive the first torsion spring 26 to twist. When the telescopic plate 19 moves to the bottom of the reversing plate 27, it will no longer push the reversing plate 27. At this time, the first torsion spring 26 resets and drives the reversing plate 27 to return to its initial position. When the extrusion sleeve 16 moves downward, it will also drive the first locking member 30 to move. When the telescopic plate 19 moves to the bottom of the reversing plate 27, the first locking member 30 will contact the first trigger member 33. At this time, the first locking member 30 will lock the first trigger member 33, so that the lifting plate 17 cannot move upward, and the first force storage spring 24 is in a stretched state.

[0111] When closing the switch, the first trigger member 33 and the first locking member 30 are controlled to unlock. At this time, the first force storage spring 24 recovers its deformation and pulls the lifting plate 17 to move upward quickly. When the lifting plate 17 moves upward, it pushes the reversing plate 27 to move upward. Because there is a limit block 28 at the upper end of the reversing plate 27, the reversing plate 27 will not move upward. At this time, the lifting plate 17 pushes the reversing plate 27 and the limit block 28 to move upward together. The limit block 28 drives the connecting plate 25 to move together. When the connecting plate 25 moves upward, it drives the moving plate 7 to move upward. When the moving plate 7 moves upward, it drives the second conductive column 6 to move upward. When the second conductive column 6 is about to contact the first conductive column 5, the moving plate 7 drives the extrusion head 9 is inserted into the upper fixed cylinder 101, and at the same time, the upper push piece 103 is pushed to move upward. When the upper push piece 103 moves upward, it squeezes the air in the upper fixed cylinder 101, and the air passes through the gap between the upper push piece 103 and the upper fixed cylinder 101 and flows downward. This process actually forms an air pressure buffer area. This buffering effect can absorb part of the kinetic energy, thereby reducing the upward speed of the moving plate 7 and the extrusion head 9, achieving a deceleration effect. Finally, the second conductive column 6 slowly fits together with the first conductive column 5 to avoid the second conductive column 6 and the first conductive column 5 from having an excessive collision problem due to rapid closing of the switch, which protects the second conductive column 6 and the first conductive column 5 to a certain extent and prolongs the service life of the circuit breaker.

[0112] Because the elastic force of the first force storage spring 24 is greater than the elastic force of the second force storage spring 29, when the movable plate 7 moves upward, the second force storage spring 29 will be stretched, and when the movable plate 7 moves upward, the connecting rod 35 will also be driven to move, and the connecting rod 35 drives the second locking member 32 to move upward. After the closing is completed, the second locking member 32 will contact the second trigger member 31. At this time, the second locking member 32 is locked on the second trigger member 31, so that the movable plate 7 cannot move downward. In addition, after the closing, the movable plate 7 moves on the telescopic plate 19, and finally the inclined surface of the inclined surface block 21 will squeeze The column 22 is squeezed, so that the inclined block 21 drives the telescopic plate 19 to move and retract into the lifting plate 17. Finally, the telescopic plate 19 leaves the reversing plate 27 and no longer contacts the reversing plate 27. This ensures that the reversing plate 27 will not push the telescopic plate 19 when the movable plate 7 moves downward. When the gate needs to be opened, the second trigger member 31 and the second locking member 32 are unlocked, and the previously stretched second force storage spring 29 will shrink and drive the movable plate 7 to move downward. When the movable plate 7 moves downward, it will drive the second conductive column 6 to separate from the first conductive column 5, thereby realizing The present gate opening operation, when the moving plate 7 moves downward quickly, when the reset is almost finished, the moving plate 7 will drive the extrusion head 9 at the lower end to squeeze the floating block column 113, the interior of the lower fixed cylinder 111 is filled with oil, the buoyancy of the floating block column 113 is greater than the buoyancy of the oil, when the extrusion head 9 squeezes the floating block column 113 to move downward, the floating block column 113 pushes the lower push piece 112 to move, and the lower push piece 112 will push the oil in the lower fixed cylinder 111 when moving downward, and the oil at the lower part of the lower push piece 112 will flow from the gap between the lower push piece 112 and the inner wall of the lower fixed cylinder 111 to This process actually forms a hydraulic buffer area, and this buffering effect can absorb part of the kinetic energy, thereby reducing the downward speed of the moving plate 7 and the extrusion head 9, and avoiding the problem that the moving plate 7 causes excessive impact on the overall structure of the circuit breaker when opening the switch. When closing or opening the switch, the initial speed of the present invention is fast, and the speed slows down in the later stage. When performing closing and opening operations, the initial speed is fast, and the rapid dynamic change can effectively reduce the generation of arcs, and the later speed slows down, which can avoid the problem that the excessively fast closing and opening speed causes excessive impact on the overall structure of the circuit breaker.

[0113] like Figures 1 to 16The first locking member 30 includes an L-shaped plate 301, which is fixedly connected to the extrusion sleeve 16; a mounting block 302, which is fixedly installed on the side surface of the L-shaped plate 301 near the lower end; a folding plate 305, which is rotatably installed on the mounting block 302; a second torsion spring 303, which is installed at the rotational connection between the folding plate 305 and the mounting block 302, one end of the second torsion spring 303 is fixedly connected to the folding plate 305, and the other end of the second torsion spring 303 is fixedly connected to the mounting block 302; a blocking plate 304, which is arranged below the folding plate 305, and one end of the blocking plate 304 is fixedly connected to the L-shaped plate 301.

[0114] like Figures 1 to 16 The first trigger member 33 includes: a box body 334 and a coil 337, the coil 337 is arranged in the box body 334; an iron pipe 338, the iron pipe 338 is installed in the coil 337; a telescopic column 333, the telescopic column 333 is arranged in the iron pipe 338, and the two ends of the telescopic column 333 are respectively movably penetrated through the box body 334 and extend to the outside; a second return spring 336, the second return spring 336 is sleeved on the telescopic column 333, and the second return spring 336 is located in the box body 334; a permanent magnet block 335, the permanent magnet block 335 is fixedly connected to the side surface of the telescopic column 333, and the permanent magnet block 335 is located at the right end of the second return spring 336; a trigger rod 331, the trigger rod 331 is arranged below the box body 334, and the right end of the trigger rod 331 is movably penetrated through the side wall of the box body 1 and extends to the outside; a fixed plate 332, and the two ends of the fixed plate 332 are respectively fixedly connected to the trigger rod 331 and the telescopic column 333.

[0115] When the first locking member 30 is moved upward, the folding plate 305 will push the telescopic column 333 on the first trigger member 33, and the folding plate 305 will deflect upward. At the same time, the folding plate 305 will cause the second torsion spring 303 to twist. When the folding plate 305 moves below the telescopic column 333, the folding plate 305 will no longer squeeze the telescopic column 333. At this time, the second torsion spring 303 drives the folding plate 305 to reset. If the first locking member 30 is moved upward at this time, the folding plate 305 will move upward to push the telescopic column 333. At this time, the folding plate 305 is blocked by the blocking plate 304 and cannot be deflected downward. At this time, the first locking member 30 is moved upward. A locking member 30 is locked on the telescopic column 333; when a closing operation is required, the coil 337 is energized with direct current. When current passes through the coil 337, the iron tube 338 generates magnetism, and the magnetic poles of the adjacent surfaces of the iron tube 338 and the permanent magnet block 335 are the same. At this time, the iron tube 338 pushes the permanent magnet block 335 to move to the left through magnetic repulsion. When the permanent magnet block 335 moves to the left, it will squeeze the second return spring 336, and at the same time, it will also drive the telescopic column 333 to move together. Finally, the telescopic column 333 detaches from the L-shaped plate 301 and leaves the top of the folding plate 305, thereby unlocking the first locking member 30 and the first trigger member 33.

[0116] The power supply and power failure of the coil 337 are controlled by wireless operation. When the coil 337 cannot be powered, that is, the wireless remote control cannot be used to open and close the switch, the first trigger rod 331 is manually pressed to move to the left, and the first trigger rod 331 will drive the telescopic column 333 to move together through the fixing plate 332, and finally the first locking member 30 and the first trigger member 33 are unlocked, so that when there is a problem with the first locking member 30 and the first trigger member 33, the unlocking operation can be performed manually to achieve the closing operation. The second locking member 32 and the second trigger member 31 of the present invention have the same structure as the first locking member 30 and the first trigger member 33, and their working principles are also the same, but the installation positions are different.

[0117] like Figures 1 to 16 , including a rotating rod 36, which is mounted on the side surface of the large gear 14; a first indicator plate 37, which is arranged above the rotating rod 36, and an observation port is penetrated and opened at the position corresponding to the first indicator plate 37 of the box body 1; a third return spring 39, the lower end of the third return spring 39 is fixedly connected to the first indicator plate 37; a second support plate 40, which is fixedly mounted on the upper end of the third return spring 39, and the second support plate 40 is fixedly connected to the inner wall of the box body 1; a triangular block 38, which is fixedly connected to the lower end of the first indicator plate 37; a first limit bar 41, which is arranged on the left and right sides of the first indicator plate 37, and the first limit bar 41 is fixedly connected to the inner wall of the box body 1.

[0118] By adopting the above technical solution, a solid rectangle can be printed on the lower surface of the first indicator plate 37, and the solid rectangle represents that the first force storage spring 24 is stretched and stored. A hollow rectangle can be printed on the lower surface of the first indicator plate 37, and the hollow rectangle represents that the first force storage spring 24 is not stretched and stored. By observing the first indicator plate 37 through the observation port, it can be known whether the first force storage spring 24 has completed the storage of force. The specific operation is as follows: when the large gear 14 rotates, it will drive the rotating rod 36 to rotate. When the rotating rod 36 rotates from the lower part to the upper part, it will squeeze the inclined surface of the triangle block 38, so that the triangle When the block 38 moves upward, the triangular block 38 pushes the first indicator plate 37 upward and squeezes the third return spring 39, so that the first indicator plate 37 at the observation port of the box body 1 is changed from a hollow rectangle to a solid rectangle. By observing the first indicator plate 37, a person can know whether the first force storage spring 24 is charged or not. After the first force storage spring 24 contracts and no longer performs the force storage operation, the rotating rod 36 no longer squeezes the triangular block 38. At this time, the third return spring 39 pushes the first indicator plate 37 downward, and the solid rectangle on the first indicator plate 37 at the observation port becomes a hollow rectangle.

[0119] like Figures 1 to 16 , including a second indicator plate 43, the second indicator plate 43 is arranged at the same height as the first indicator plate 37, and an observation port is opened on the side wall of the box body 1 at the position corresponding to the second indicator plate 43; a fourth return spring 44, the lower end of the fourth return spring 44 is fixedly connected to the second indicator plate 43; a third support plate 45, the third support plate 45 is fixedly connected to the upper end of the fourth return spring 44, and the third support plate 45 is fixedly connected to the inner wall of the box body 1; a push rod 42, the push rod 42 is fixedly connected to the side of the second indicator plate 43; a second limit strip 46, the second limit strip 46 is arranged on the side of the second indicator plate 43 away from the push rod 42, and the second limit strip 46 is fixedly connected to the inner wall of the box body 1.

[0120] By adopting the above technical solution, the upper half of the second indicator plate 43 can be printed with a hollow circle, and the hollow circle represents that the second force storage spring 29 is not stretched and stored (or represents opening); the lower half of the second indicator plate 43 can be printed with a solid circle, and the solid circle represents that the second force storage spring 29 is stretched and stored (or represents closing). When the movable plate 7 drives the connecting rod 35 to move upward, the connecting rod 35 will push the top rod 42 to move upward. When the top rod 42 moves upward, it will drive the second indicator plate 43 to move upward and squeeze the fourth reset spring 44. At this time, the second indicator plate 43 at the observation port corresponding to the box body 1 is changed from a hollow circle to a solid circle. At this time, by looking at the observation port, it can be known that the second force storage spring 29 is storing force (or completing the closing operation). When the connecting rod 35 moves downward, the top rod 42 is no longer squeezed. At this time, the fourth reset spring 44 is reset, pushing the second indicator plate 43 downward. At this time, by looking at the observation port, it can be known that the second force storage spring 29 is not performing (or completing the opening operation).

[0121] like Figures 1 to 16 , including a fixing sleeve 47, the fixing sleeve 47 is installed at the center position of the pinion 13, and one end of the fixing sleeve 47 movably penetrates the side wall of the box body 1 and extends to the outside.

[0122] By adopting the above technical solution, when the motor 12 is damaged and cannot rotate, the prismatic rod is inserted into the fixed sleeve 47. First, the prismatic rod must be matched with the inside of the fixed sleeve 47, and the fixed sleeve 47 is driven to rotate by manually rotating the prismatic rod. When the fixed sleeve 47 rotates, it will drive the pinion 13 to rotate. When controlling the rotation of the fixed sleeve 47, the rotation direction must be controlled to be the same as the direction in which the motor 12 drives the pinion 13 to rotate. In this way, the first force storage spring 24 of the circuit breaker can be manually operated to store force.

[0123] The above are only preferred specific implementations of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and improved concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high voltage vacuum circuit breaker opening and closing drive mechanism, characterized in that: include: A box body (1) and a vacuum chamber (2), wherein the vacuum chamber (2) is mounted on the box body (1), and the vacuum chamber (2) is arranged in multiple groups; Wiring ports (3), the wiring ports (3) being fixedly mounted on the side surface of the vacuum chamber (2), and two groups of wiring ports (3) being mounted on each group of vacuum chambers (2), the two groups of wiring ports (3) being arranged one above the other; A conductive plate (4), the conductive plate (4) being mounted inside the wiring port (3), and one end of the conductive plate (4) extending into the vacuum chamber (2); A first conductive column (5), the upper end of the first conductive column (5) being fixedly connected to a conductive plate (4) of an upper end group; A second conductive column (6), the lower end of which penetrates through a group of conductive plates (4) at the lower end and the box (1) in sequence and extends into the interior of the box (1), and the first conductive column (5) and the second conductive column (6) are both arranged in the vacuum chamber (2); A movable plate (7), wherein the movable plate (7) is fixedly mounted on the lower end of the second conductive column (6); A fixed block (8), wherein the fixed block (8) is fixedly mounted on a side edge of the movable plate (7); An extrusion head (9), wherein the extrusion head (9) is fixedly mounted at the upper and lower ends of the fixed block (8); An upper speed reducer (10), the upper speed reducer (10) being arranged above a group of extrusion heads (9) at the upper end, the upper speed reducer (10) comprising an upper fixed cylinder (101), the upper fixed cylinder (101) being fixedly connected to the inner wall of the box body (1), a barrier ring (102) being fixedly connected to the lower opening of the upper fixed cylinder (101), an upper push piece (103) being arranged inside the upper fixed cylinder (101), and a connection block (104) being fixedly connected to the edge of the upper push piece (103); A lower speed reducer (11), the lower speed reducer (11) being arranged below a group of extrusion heads (9) at the lower end, the lower speed reducer (11) comprising a lower fixed cylinder (111), a lower push piece (112) being arranged inside the lower fixed cylinder (111), a gap for liquid to flow being left between the lower push piece (112) and the inner wall of the lower fixed cylinder (111), a floating block column (113) being fixedly connected to the upper end of the lower push piece (112), the upper end of the floating block column (113) movably passing through the lower fixed cylinder (111) and extending to the outside, and liquid being contained in the lower fixed cylinder (111).

2. The opening and closing drive mechanism of a high-voltage vacuum circuit breaker according to claim 1, characterized in that: include: A motor (12), wherein the motor (12) is installed inside the box (1); A pinion (13), wherein the pinion (13) is mounted on an output shaft of the motor (12); A large gear (14), wherein the large gear (14) is meshingly connected with the small gear (13); A rocking rod (15), wherein the rocking rod (15) is fixedly mounted on the large gear (14) and is close to an edge position; An extrusion sleeve (16), wherein the extrusion sleeve (16) is sleeved on the rocking rod (15); A lifting plate (17), wherein the lifting plate (17) is mounted on the extrusion sleeve (16); a first force storage spring (24), wherein the lower end of the first force storage spring (24) is fixedly connected to the lifting plate (17), and the upper end of the first force storage spring (24) is fixedly connected to the inner wall of the box body (1); a first return spring (18), the first return spring (18) being arranged in the lifting plate (17); a telescopic plate (19), the telescopic plate (19) being sleeved in the lifting plate (17), one end of the telescopic plate (19) being fixedly connected to the first return spring (18), and one end of the telescopic plate (19) away from the first return spring (18) passing through the lifting plate (17) and extending to the outside; An inclined plane block (21), wherein the inclined plane block (21) is mounted on the upper end of the telescopic plate (19); An extrusion column (22), wherein the extrusion column (22) is arranged on the inclined surface of the inclined surface block (21); A connecting plate (25), wherein the connecting plate (25) is mounted on a side edge of the movable plate (7); a reversing plate (27), the reversing plate (27) being rotatably connected to an end of the connecting plate (25) away from the moving plate (7); a first torsion spring (26), the first torsion spring (26) being mounted at a rotationally connected portion between the reversing plate (27) and the connecting plate (25), one end of the first torsion spring (26) being fixedly connected to the reversing plate (27), and the other end of the first torsion spring (26) being fixedly connected to the connecting plate (25); A limit block (28), wherein the limit block (28) is fixedly connected to the upper end of the connecting plate (25); A second force storage spring (29), wherein the second force storage spring (29) is mounted on the lower end of the movable plate (7), and the lower end of the second force storage spring (29) is fixedly connected to the inner wall of the box body (1).

3. The opening and closing drive mechanism of a high-voltage vacuum circuit breaker according to claim 2, characterized in that: include: A first triggering member (33), the first triggering member (33) being installed in the box body (1), and the first triggering member (33) being arranged below the movable plate (7); A first locking member (30), the first locking member (30) being mounted on the extrusion sleeve (16), the first locking member (30) being used to lock the extrusion sleeve (16) on the first trigger member (33); a second trigger member (31), the second trigger member (31) being installed in the box body (1) and located above the movable plate (7), the second trigger member (31) having the same structure as the first trigger member (33), and the installation directions of the two being opposite; A first support plate (34), the first support plate (34) being fixedly connected to the second trigger member (31), and one end of the first support plate (34) being fixedly connected to the inner wall of the box body (1); a second locking member (32), the second locking member (32) being arranged below the second trigger member (31), the second locking member (32) being used to lock the movable plate (7) on the second trigger member (31), the second locking member (32) having the same structure as the first locking member (30), and the installation directions of the two being opposite; A connecting rod (35), wherein the connecting rod (35) is mounted on the second locking member (32), and one end of the connecting rod (35) away from the second locking member (32) is fixedly connected to the movable plate (7).

4. The opening and closing drive mechanism of a high-voltage vacuum circuit breaker according to claim 3, characterized in that: The first locking member (30) comprises: An L-shaped plate (301), wherein the L-shaped plate (301) is fixedly connected to the extrusion sleeve (16); A mounting block (302), wherein the mounting block (302) is fixedly mounted on a side surface of the L-shaped plate (301) near a lower end; A folding plate (305), wherein the folding plate (305) is rotatably mounted on the mounting block (302); a second torsion spring (303), the second torsion spring (303) being mounted at a rotational connection between the folding plate (305) and the mounting block (302), one end of the second torsion spring (303) being fixedly connected to the folding plate (305), and the other end of the second torsion spring (303) being fixedly connected to the mounting block (302); A blocking plate (304), wherein the blocking plate (304) is arranged below the folding plate (305), and one end of the blocking plate (304) is fixedly connected to the L-shaped plate (301).

5. The opening and closing drive mechanism of a high-voltage vacuum circuit breaker according to claim 4, characterized in that: The first triggering member (33) comprises: A box body (334) and a coil (337), wherein the coil (337) is disposed inside the box body (334); An iron pipe (338), wherein the iron pipe (338) is installed in the coil (337); A telescopic column (333), wherein the telescopic column (333) is arranged in the iron pipe (338), and both ends of the telescopic column (333) are respectively movable through the box body (334) and extend to the outside; a second return spring (336), the second return spring (336) being sleeved on the telescopic column (333), and the second return spring (336) being located inside the box body (334); A permanent magnet block (335), wherein the permanent magnet block (335) is fixedly connected to a side surface of the telescopic column (333), and the permanent magnet block (335) is located at the right end of the second return spring (336).

6. The opening and closing drive mechanism of a high-voltage vacuum circuit breaker according to claim 5, characterized in that: The first triggering member (33) further comprises: A trigger rod (331), the trigger rod (331) being arranged below the box body (334), and the right end of the trigger rod (331) movably passes through the side wall of the box body (1) and extends to the outside; A fixed plate (332), wherein two ends of the fixed plate (332) are respectively fixedly connected to the trigger rod (331) and the telescopic column (333).

7. The opening and closing drive mechanism of a high-voltage vacuum circuit breaker according to claim 6, characterized in that: include: A rotating rod (36), wherein the rotating rod (36) is mounted on a side surface of the large gear (14); a first indicator plate (37), the first indicator plate (37) being arranged above the rotating rod (36), and an observation port being provided through the box body (1) at a position corresponding to the first indicator plate (37); a third return spring (39), the lower end of the third return spring (39) being fixedly connected to the first indicator plate (37); A second support plate (40), the second support plate (40) being fixedly mounted on the upper end of the third return spring (39), and the second support plate (40) being fixedly connected to the inner wall of the box body (1); A triangular block (38), wherein the triangular block (38) is fixedly connected to the lower end of the first indicator plate (37); A first limiting strip (41), wherein the first limiting strip (41) is arranged on the left and right sides of the first indicating plate (37), and the first limiting strip (41) is fixedly connected to the inner wall of the box body (1).

8. The opening and closing drive mechanism of a high-voltage vacuum circuit breaker according to claim 7, characterized in that: include: a second indicator plate (43), the second indicator plate (43) being arranged at the same height as the first indicator plate (37), and an observation port being provided on the side wall of the box body (1) at a position corresponding to the second indicator plate (43); a fourth return spring (44), wherein the lower end of the fourth return spring (44) is fixedly connected to the second indicator plate (43); a third support plate (45), the third support plate (45) being fixedly connected to the upper end of the fourth return spring (44), the third support plate (45) being fixedly connected to the inner wall of the box body (1); A push rod (42), wherein the push rod (42) is fixedly connected to a side edge of the second indicator plate (43); A second limiting strip (46), the second limiting strip (46) being arranged on a side of the second indicating plate (43) away from the top rod (42), the second limiting strip (46) being fixedly connected to the inner wall of the box body (1).

9. The opening and closing drive mechanism of a high-voltage vacuum circuit breaker according to claim 8, characterized in that: include: A fixing sleeve (47) is installed at the center of the pinion (13), and one end of the fixing sleeve (47) movably penetrates the side wall of the box body (1) and extends to the outside.

10. The opening and closing drive mechanism of a high-voltage vacuum circuit breaker according to claim 9, characterized in that: include: A limit plate (20), the limit plate (20) being arranged on the left and right sides of the lifting plate (17), and the upper and lower ends of the limit plate (20) being fixedly connected to the inner wall of the box body (1); A mounting plate (23), wherein the mounting plate (23) is mounted on the upper end of the extrusion column (22), and the mounting plate (23) is fixedly connected to the limiting plate (20).

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