A synchronizing mechanism for a polyphase switch

Abstract

The application discloses a kind of synchronous mechanism of multiphase switch, energy is stored by cam extrusion energy storage spring, energy storage spring is released by being placed under bias, impact cross bar is impacted to symmetrical double hook plate in the release process, symmetrical double hook plate drives transmission shaft rotation, transmission shaft drives the synchronous motion of multiple shift forks, and transmission shaft resets under the action of reset mechanism.The synchronous mechanism can drive three shift forks to rotate counterclockwise or clockwise, and three independent switch driving mechanisms are synchronously driven by shift fork to realize the purpose of three-phase split-phase switch high synchronous closing.

Description

Technical Field

[0001] This invention relates to a synchronization mechanism for multiphase switches, particularly a synchronization mechanism that requires the three drive mechanisms to operate synchronously so that the three-phase switches can operate synchronously when the switches on a three-phase line are independently controlled to open and close by three drive mechanisms. Background Technology

[0002] To address the issues of cumbersome operation, untimely processing, and inaccurate location in handling phase-to-phase short-circuit faults in power supply systems, invention patent applications 202011453631.0, 202011453632.5, 202110420475.6, 202110420952.9, and 202111251618.1 provide methods for handling phase-to-phase short circuits in single-power or dual-power supply systems. According to this method, when a phase-to-phase short circuit occurs, one faulty phase is kept conducting while the other faulty phases are tripped. Then, another faulty phase is connected to ground or a common conductor, and a live phase is connected to ground or a common conductor, thus forming a closed loop with the two faulty phases connected by the short circuit and generating a continuous or intermittent current. The duration of the continuous current or the number of pulses of the intermittent current is detected by a controlled switch, and the corresponding controlled switch trips based on the detection results to clear the fault. In specific processing, it is necessary to achieve the operation of simultaneously disconnecting the phase-by-phase line and connecting it to the ground or common conductor in a cabinet environment or pole-mounted environment. Invention patent applications 202110498257.4, 202111404606.8, 202111293259.6, and 202122898055.7 provide switching mechanisms to achieve this operation. These switching mechanisms employ multiple single-phase switches and single-pole double-throw switches, which require corresponding drive mechanisms. In particular, the single-pole double-throw switch uses two vacuum bulbs, with a composite moving contact alternately contacting two stationary contacts. The drive mechanism must maintain a certain contact force while simultaneously separating the composite moving contact from one stationary contact and making contact with the other stationary contact. Utility model patent 202222351025.9 discloses a transmission device for a switch. This transmission device and a power source can form an independent drive unit. Setting three such independent drive units within a control cabinet enables independent phase-by-phase switching control of three-phase lines within the cabinet environment. However, when the three-phase lines are controlled independently, if the three phase switches are in the open state and require synchronous three-phase closing or synchronous opening, the independent operation of each switch results in a time difference, making it difficult to achieve highly synchronized three-phase closing. Therefore, a synchronization mechanism is needed to simultaneously drive the three independent drive units for synchronous closing or opening. The problem is that while the existing synchronization drive mechanism can drive the three independent drive units to operate synchronously for closing or opening, it cannot reset promptly after each operation (e.g., after three-phase closing), thus interfering with the independent drive units' phase-by-phase control of the three-phase lines. Therefore, a new synchronization mechanism is needed that can synchronously drive three independent drive devices without interfering with the independent phase control of the three-phase line by the independent drive devices. Summary of the Invention

[0003] The purpose of this invention is to provide a synchronization mechanism for a multi-phase switch. This synchronization mechanism can drive three shift forks to rotate counterclockwise or clockwise and reset them in time after rotation. The synchronous action of the three shift forks can drive the three aforementioned independent drive devices to operate synchronously for synchronous closing or opening. By resetting the shift forks in time, the synchronization mechanism can achieve the purpose of controlling the on / off of the three-phase line without interfering with the independent operation of the independent drive devices.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A synchronization mechanism for a multiphase switch includes a first support plate and a second support plate. A cam is provided between the first and second support plates and is connected to a drive mechanism. An energy storage spring is provided below the cam, and a drive shaft is provided below the energy storage spring. A reset mechanism and multiple shift forks are provided on the drive shaft. The upper end of the energy storage spring is connected to an upper spring seat, and the lower end of the energy storage spring is connected to a lower spring seat. The lower spring seat is sleeved on the drive shaft and can rotate relative to the drive shaft. An impact crossbar is provided on the lower spring seat. Symmetrical double hook plates are fixed to the drive shaft below the impact crossbar. The impact crossbar can move to both sides. The mechanism acts on a symmetrical double hook plate and causes the symmetrical double hook plate to drive the transmission shaft to rotate; a pressure hook plate is rotatably provided on one side of the upper spring seat, which can press down on the upper spring seat. The pressure hook plate is connected to a deflection transmission mechanism, which is connected to the transmission shaft. The transmission shaft drives the deflection transmission mechanism to move, and after the deflection transmission mechanism moves to a preset amplitude, it drives the pressure hook plate to deflect to release the pressure on the upper spring seat; it also includes a deflecting frame, which is provided with a deflecting head. When the deflecting frame moves along the direction of the transmission shaft to one end or the other end, the deflecting head deflects the lower spring seat to one side or the other side.

[0005] Preferably, the upper spring seat includes a transverse slide rod, and a slide groove is provided on the first support plate and the second support plate, through which the transverse slide rod passes.

[0006] Preferably, a bearing is fitted onto the transverse slide bar, and the cam presses against the bearing when it rotates.

[0007] Preferably, a push spring is provided on the first support plate, and the push spring is connected to the transverse slide bar.

[0008] Preferably, the pressure hook plate includes a first side plate and a second side plate. The top of the first side plate is provided with a first pressure hook, and the top of the second side plate is provided with a second pressure hook. The first side plate and the second side plate are connected by a cross plate. The first side plate is hinged to a first support plate, and the second side plate is hinged to a second support plate. A transmission cross bar is provided on the side of the first side plate and / or the second side plate.

[0009] More preferably, the deflection transmission mechanism includes a transmission vertical plate with a vertical plate groove. The transmission crossbar passes through the vertical plate groove. The upper end of the transmission vertical plate has a first arc-shaped protrusion and a second arc-shaped protrusion. A fixed rod is provided on a first support plate or a second support plate. The lower end of the transmission vertical plate is connected to the transmission shaft via a transmission arm. When the transmission shaft rotates clockwise or counterclockwise, it drives the transmission vertical plate to move upward or downward via the transmission arm. When the movement amplitude of the transmission vertical plate reaches the point where the first arc-shaped protrusion or the second arc-shaped protrusion contacts the fixed rod, the transmission vertical plate deflects and drives the pressure hook plate to rotate to release the pressure on the upper spring seat.

[0010] Furthermore, the transmission vertical plate is connected to the reset spring.

[0011] Preferably, the lower spring seat includes a first vertical plate, a second vertical plate, and a portal frame seat. The lower end of the first vertical plate is provided with a first sleeve, and the lower end of the second vertical plate is provided with a second sleeve. The first sleeve and the second sleeve are sleeved on the transmission shaft. The upper ends of the first vertical plate and the second vertical plate are provided with the impact crossbar. The two ends of the impact crossbar are installed on the portal frame seat, and the portal frame seat is connected to the lower end of the energy storage spring. The symmetrical double hook plate is located between the first vertical plate and the second vertical plate, and the two ends of the symmetrical double hook plate have symmetrically arranged arc hooks.

[0012] More preferably, the deflector is shaped like a gate and is fitted onto the first support plate and the second support plate. The first support plate has a first through hole, and the second support plate has a second through hole. There are two deflector heads, which are respectively inserted into the first through hole and the second through hole. The first deflector head has a first inclined surface, and the second deflector head has a second inclined surface. When the deflector moves, the first inclined surface presses against the gate-shaped seat and deflects the lower spring seat to one side, or the second inclined surface presses against the gate-shaped seat and deflects the lower spring seat to the other side.

[0013] Preferably, the driving mechanism is a motor or a worm gear, the output shaft of the motor is connected to the camshaft of the cam, or the worm gear drives the camshaft of the cam via a chain and a ratchet.

[0014] Preferably, the deflector frame is provided with a pin hole, which cooperates with an electromagnetic pin to lock the deflector frame.

[0015] Preferably, the reset mechanism is a reset torsion spring mounted on the drive shaft or a reset arm mounted on the drive shaft, wherein the reset arm is connected to the reset spring.

[0016] Preferably, the camshaft of the cam shown is fixedly connected to the bushing, the bushing is rotatably mounted on the first support plate or the second support plate, the bushing is fixedly connected to the support sleeve plate, a pawl is hinged on the support sleeve plate, and a sear slider is provided outside the support sleeve plate. The sear slider moves downward as the energy storage spring is compressed and squeezes the pawl, thereby disengaging the pawl from the ratchet. The sear slider moves upward as the energy storage spring extends and releases the squeeze on the pawl, causing the pawl to embed into the ratchet.

[0017] In the above technical solution, the cam compresses the energy storage spring, and then the upper spring seat is pressed by the pressure hook plate, thus limiting the spring compression between the pressing point and the transmission shaft to achieve maximum energy storage. When output is required, the deflector frame moves to deflect the lower spring seat, and the energy storage spring is released in the deflection direction. At the same time, it drives the impact crossbar to strike the arc hook of the symmetrical double hook plate. The symmetrical double hook plate drives the transmission shaft to rotate. After the transmission shaft drives the shift fork to rotate once, it is reset by the action of the reset torsion spring and other reset mechanisms. At the same time, it drives the shift fork and the symmetrical double hook plate to reset accordingly. In the later part of the rotation process, the transmission shaft also opens the pressure hook plate through the deflection transmission mechanism to release the upper spring seat. In this way, the energy storage spring can push the upper spring seat towards the cam direction with the residual energy and return to the state that can be compressed by the cam again (it can also push the upper spring seat upward with the help of the push spring to ensure reset). The deflector frame can deflect the lower spring seat in two opposite directions, so that the impact crossbar can strike the symmetrical double hook plate in two directions, thereby realizing the rotation of the shift fork in two directions (corresponding to the closing and opening drive). In practical applications, the deflector can be configured with an electromagnet to activate based on an electrical signal, or it can be manually deflected. This synchronization mechanism can be used in conjunction with three independent drive units for each switch. The three independent drive units control the opening or closing of their respective switches, while the three forks of this synchronization mechanism output synchronous drive actions and, through the transmission mechanism in the aforementioned independent drive mechanisms, achieve synchronous closing or opening operations for the three switches. Furthermore, after the forks are reset, the three independent drive mechanisms can still operate independently and freely to control the on / off state of their respective lines without interference from the synchronization mechanism (because the swing amplitude of the V-arm is within the opening range of the forks, as long as the forks are reset, the V-arm can swing freely). Attached Figure Description

[0018] Figure 1 This is a schematic diagram illustrating the combined use of the synchronization mechanism, independent drive mechanism, and switch of the present invention. Figure 2 This is a three-dimensional structural diagram of the synchronization mechanism of the present invention; Figure 3 This is a front view of the synchronization mechanism of the present invention; Figure 4 This is a schematic diagram of the energy storage spring and related components (without the symmetrical double hook plate). Figure 5This is a schematic diagram of the deflection transmission mechanism. Figure 6 This is a schematic diagram of the deflection transmission mechanism from another angle (the symmetrical double hook plate is not shown). Figure 7 A schematic diagram of the pressure hook plate, the symmetrical double hook plate, and related structures; Figure 8 This is a schematic diagram of the pressure hook plate, the symmetrical double hook plate, and related structures from another angle. Figure 9 This is a schematic diagram of the second perforation structure on the second support plate; Figure 10 This is a schematic diagram of the deflector frame structure; Figure 11 A schematic diagram of the ratchet, bushing and related structures (the sear slider is separated from the pawl). Figure 12 A schematic diagram of a ratchet, pawl, sear slider, and related structures (the sear slider presses against the pawl). Figure 13 A schematic diagram of the structure where the V-shaped arm is located at the lowest point inside the opening of the shift fork; Figure 14 A schematic diagram of the structure where the V-shaped arm is located at the highest point inside the fork opening; Figure 15 A schematic diagram of the pin hole used to lock the offset bracket; Figure 16 This is a schematic diagram of the installation of the sear slider and related structures. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings: As attached Figure 1 As shown, the synchronization mechanism 100 of this multiphase switch drives the V-shaped arms 89 of the transmission mechanisms in the three independent drive devices 200 via three shift forks 22 (only one switch and one shift fork are shown in the figure), thereby achieving synchronous closing (or opening) of the three switches 300. In this way, the three independent drive mechanisms 200 can control the independent closing or opening of the three switches 300 independently through their own power source and their own transmission mechanisms, or they can cooperate with the shift forks 22 of the synchronization mechanism 100 to drive the synchronous closing or opening of the three switches 300. For details regarding the independent drive mechanism 200, please refer to utility model patent 202222351025.9; for details regarding the switch 300, please refer to invention patent application 202110498257.4.

[0020] The following section focuses on Synchronization Mechanism 100: As attached Figures 1 to 16As shown, the synchronization mechanism 100 includes a first support plate 1 and a second support plate 2, which are arranged in parallel. A camshaft 3 is installed above the first support plate 1 and the second support plate 2. A cam 4 is installed on the camshaft 3. One end of the camshaft 3 is connected to the output shaft of the motor 5, and the other end can be connected to a ratchet 6 and connected to a worm gear mechanism 81 via a chain 7. The motor 5 drives the cam 4 to rotate to store energy. When the motor 5 cannot work, the cam 4 can be manually rotated through the worm gear mechanism 81 to store energy.

[0021] A storage spring 8 is provided below the cam 4. The upper end of the storage spring 8 is fixedly connected to the upper spring seat 9, and the lower end is connected to the lower spring seat 11. A transverse slide rod 10 is provided on the upper spring seat 9, and both ends of the transverse slide rod 10 are inserted into the slide grooves 85 on the first support plate 1 and the second support plate 2. The cam 4 presses the upper spring seat 9 downward to store energy in the storage spring 8. In one embodiment, a bearing 80 is provided in the middle of the transverse slide rod 10. The cam 4 presses against the bearing 80 to move the upper spring seat 9 downward to reduce the friction between the cam 4 and the upper spring seat 9. In a preferred embodiment, a push spring 12 is provided on the outside of the second support plate 2. The push spring 12 is connected to the transverse slide rod 10 and is used to push the upper spring seat 9 upward to assist in resetting. The lower spring seat 11 includes a portal-shaped seat 13 fixedly connected to the energy storage spring 8. An impact crossbar 14 passes through the portal-shaped seat 13. The impact crossbar 14 is also rotatably connected to the first vertical plate 15 and the second vertical plate 16. A first sleeve 17 is provided below the first vertical plate 15, and a second sleeve 18 is provided below the second vertical plate 16. The first sleeve 17 and the second sleeve 18 are rotatably sleeved on the hexagonal transmission shaft 19. A symmetrical double hook plate 20 is also fixedly connected to the transmission shaft 19 between the first vertical plate 15 and the second vertical plate 16. The symmetrical double hook plate 20 has arc-shaped hooks 21 at both ends. When the lower end of the energy storage spring 8 deflects and releases energy, it can drive the impact crossbar 14 to strike the arc-shaped hook 21 at one end of the symmetrical double hook plate 20, and then further drive the transmission shaft 19 to rotate, thereby driving the three shift forks 22 on the transmission shaft 19 to rotate. A return torsion spring 23 is provided on the transmission shaft 19. After the transmission shaft 19 and the shift forks 22 rotate, they are reset under the action of the return torsion spring 23. In addition to using a reset torsion spring 23, the reset mechanism on the drive shaft 19 can also use a reset arm (not shown in the figure) that is stretched by a reset spring. The reset arm is fixed to the drive shaft 19. After the drive shaft 19 rotates, the reset spring stretches the reset arm to reset the drive shaft.

[0022] A pressure hook plate 24 is provided on one side of the upper spring seat 9. The pressure hook plate 24 includes a first side plate 25 and a second side plate 26. The top of the first side plate 25 is provided with a first pressure hook 27, and the top of the second side plate 26 is provided with a second pressure hook 28. The first side plate 25 is rotatably mounted on the first support plate 1 via a pin shaft, and the second side plate 26 is rotatably mounted on the second support plate 2 via a pin shaft. The first side plate 25 and the second side plate 26 are connected on the side by a horizontal plate 29. A transmission crossbar 30 is also provided transversely on the horizontal plate 29. When the cam 4 presses the upper spring seat 9 down, the first pressure hook 27 and the second pressure hook 28 can hook the transverse slide bar 10, thereby keeping the energy storage spring 8 stored (that is, when the upper spring seat 9 is pressed down, it can push open the pressure hook plate 24 and be hooked by the automatically rotating pressure hook plate 24 after reaching the lowest point).

[0023] A deflection transmission mechanism is provided on the side of the first support plate 1. The deflection transmission mechanism includes a transmission vertical plate 31 with a vertical plate groove 32. One end of the transmission horizontal rod 30 passes through the vertical plate groove 32. A first arc-shaped protrusion 33 and a second arc-shaped protrusion 34 are provided at the upper end of the transmission vertical plate 31. A fixed rod 35 is provided on the second support plate 2. The lower end of the transmission vertical plate 31 is fixedly connected to the transmission shaft 19 via a hinged transmission arm 95. When the transmission shaft 19 rotates clockwise, it can drive the transmission vertical plate 31 to move upward. When the first arc-shaped protrusion 33 contacts the fixed rod 35, the fixed rod 35 pushes against the first arc-shaped protrusion 33, causing the transmission vertical plate 31 to rotate counterclockwise and simultaneously driving the transmission horizontal rod 30 to rotate outward. The transmission horizontal rod 30 drives the pressure hook plate 24 to deflect outward together towards the outside of the first support plate 1 and the second support plate 2. In this way, the first pressure hook 27 and the second pressure hook 28 disengage from the horizontal slide rod 10, thereby releasing the upper spring seat 9. When the drive shaft 19 rotates counterclockwise, the corresponding drive vertical plate 31 moves downward, and the second arc-shaped protrusion 34 contacts the fixed rod 35, causing the drive vertical plate 31 to rotate counterclockwise as well. This eventually opens the pressure hook plate 24, releasing the upper spring seat 9, thus placing the upper spring seat 9 in a state where it can be pressed again by the cam 4, so as to continue storing energy for the energy storage spring 8. In a preferred embodiment, a return spring 36 is provided on the second support plate 2, which is connected to the drive vertical plate 31 to help the drive vertical plate 31 return to its original position.

[0024] A first through hole 37 is provided on the first support plate 1, and a first deflector 39 is inserted into the first through hole 37. A second through hole 38 is provided on the second support plate 2, and a second deflector 40 is inserted into the second through hole 38. The first deflector 39 and the second deflector 40 are respectively connected to the two ends of the portal frame 41 to form a deflector frame. The first deflector 39 has a first inclined surface 42, and the second deflector 40 has a second inclined surface 43. The first deflector 39 and the second deflector 40 are respectively located on both sides of the portal seat 13. When the deflector frame moves along the direction of the drive shaft 19, the first inclined surface 42 of the first deflector 39 presses the portal seat 13 to one side, causing the lower spring seat 11 to deflect to that side. In this way, the energy storage spring 8 is released to that side and drives the impact crossbar 14 to strike the symmetrical double hook plate 20. The symmetrical double hook plate 20 then drives the drive shaft 19 to rotate. If the deflector moves in the opposite direction, the second inclined surface 43 of the second deflector head 40 presses against the portal seat 13 from the other side, causing the lower spring seat 11 to deflect in the opposite direction. The energy storage spring 8 then drives the impact crossbar 14 to impact the arc hook 21 on the other side of the symmetrical double hook plate 20, ultimately causing the drive shaft 19 to rotate in the opposite direction. Electromagnets (not shown in the figure) can be installed on one or both sides of the deflector, allowing the movement of the deflector to be controlled by electrical signals or manually moved by the handle 86 on the deflector.

[0025] In a preferred embodiment, the worm gear mechanism 81 is mounted on the third support plate 98 and drives the ratchet 6 to rotate via the chain 7. The camshaft 3 passes through the bushing 44 and is locked by the pin 45. The bushing 44 is rotatably mounted on the first support plate 1. The ratchet shaft 46 of the ratchet 6 passes through the round hole at one end of the ratchet shaft 3 and can rotate relative to the ratchet shaft 3. A support sleeve 47 is fixedly connected to the bushing 44. A pawl 48 is hinged to the support sleeve 47. A pawl sleeve 97 is provided outside the pawl 48. A sear slider 49 is provided outside the support sleeve 47. The sear slider 49 is slidably mounted on the first support plate 1 via the connecting plate 99 and is connected to the upper spring seat 9. One end of the pawl 48 is connected to the upper spring seat 9. The pawl sleeve 97 is exposed in the opening on the side and can be squeezed by the sear slider 49. When the energy storage spring 8 is in a free state, the pawl 48 is embedded in the ratchet 6. In this way, the ratchet 6 can drive the bushing 44 to rotate together through the pawl 48 and the support sleeve 47, and drive the cam shaft 3 and cam 4 to rotate, thereby causing the cam 4 to compress the upper spring seat 9 to store energy. When the upper spring seat 9 is pressed to the lowest point, the hook plate 24 rotates and hooks the upper spring seat 9. At the same time, the upper spring seat 9 drives the sear slider 49 to move down to the lowest point and presses the tail 87 of the pawl 48. In this way, the end 88 of the pawl 48 is removed from the ratchet 6, and the ratchet 6 rotates freely without driving the bushing 44 and cam 4 to rotate. When the drive shaft 19 rotates and drives the pressure hook plate 24 to rotate outward, releasing the energy storage spring 8, the upper spring seat 9 moves upward and drives the sear slider 49 to move upward. The tail 87 of the pawl 48 is released, and the end 88 of the pawl 48 is re-engaged in the ratchet 6 under the action of the return spring (not shown in the figure), allowing the ratchet 6 to drive the cam 4 to rotate. Through the engagement and disengagement of the ratchet 6 and the pawl 48, the ratchet 6 can be allowed to rotate freely after the upper spring seat 9 is pressed, so that the cam 4 is located at the position after the pressing point. In this way, when the energy storage spring 8 pushes the upper spring seat 9 upward, the cam 4 will not restrict the rise of the upper spring seat 9.

[0026] In a preferred embodiment, the gantry frame 41 of the deflector is provided with pin holes 90, into which electromagnetic pins (not shown in the figure) can be inserted to lock the deflector. This prevents the deflector from moving to either side, thus preventing the lower spring seat 11 from being deflected, and the shift fork 22 will not output any action. During the handling of phase-to-phase short circuits, it is not possible to completely disconnect all three phase lines. Therefore, providing pin holes 90 and corresponding electromagnetic pins to lock the deflector effectively prevents the synchronizing mechanism 100 from disconnecting the three phase lines.

[0027] When using this synchronization mechanism, the cam 4 presses down on the upper spring seat 9, causing the energy storage spring 8 to compress and store energy. After reaching the lowest point, the hook plate 24 rotates and hooks the upper spring seat 9. Then, the deflector action deflects the lower spring seat 11, and the energy storage spring 8 drives the impact crossbar 14 to strike the symmetrical double hook plate 20 to one side. The symmetrical double hook plate 20 drives the transmission shaft 19 to rotate, and at the same time drives the shift fork 22 to rotate. The shift fork 22 acts on the V-arm 89 in the independent drive mechanism 200. If all three V-arms 89 are at the highest or lowest point within the opening of the shift fork 22 (if some of the three V-arms are at the highest point and some are at the lowest point, the synchronization mechanism can first act once to make all three V-arms at the highest or lowest point), then the shift fork 22 will drive the V-arms 89 to move synchronously, thereby ultimately making the three switches move synchronously. When the synchronizing mechanism 100 is not in operation, the independent driving mechanism 200 can independently control the on / off state of various switches 300. Because the opening of the fork 22 covers the range of motion of the V-arm 89, the V-arm 89 located at one end of the fork opening can move freely without being disturbed by the fork 22. However, the rotation of the fork 22 can synchronously drive the three V-arms 89 to move. After the fork 22 rotates, it is reset in time under the action of the reset torsion spring 23, thus preparing for the next action.

[0028] The above embodiments are merely illustrative of the concept and implementation of the present invention and are not intended to limit it. Under the concept of the present invention, technical solutions without substantial changes are still within the scope of protection.

Claims

1. A synchronization mechanism for a multiphase switch, comprising a first support plate and a second support plate, characterized in that: A cam is provided between the first support plate and the second support plate. The cam is connected to the drive mechanism. An energy storage spring is provided below the cam. A transmission shaft is provided below the energy storage spring. A reset mechanism and multiple shift forks are provided on the transmission shaft. The upper end of the energy storage spring is connected to the upper spring seat, and the lower end of the energy storage spring is connected to the lower spring seat. The lower spring seat is sleeved on the transmission shaft and can rotate relative to the transmission shaft. An impact crossbar is provided on the lower spring seat. A symmetrical double hook plate is fixedly connected to the transmission shaft below the impact crossbar. The impact crossbar can act on the symmetrical double hook plate to both sides and cause the symmetrical double hook plate to drive the transmission shaft to rotate. A pressure hook plate is rotatably provided on one side of the upper spring seat. The pressure hook plate can press down on the upper spring seat. The pressure hook plate is connected to the deflection transmission mechanism, which is connected to the transmission shaft. The transmission shaft drives the deflection transmission mechanism to move, and after the deflection transmission mechanism moves to a preset amplitude, it drives the pressure hook plate to deflect to release the pressure on the upper spring seat. It also includes a deflector frame, which is equipped with a deflector head. When the deflector frame moves towards one end or the other end along the direction of the drive shaft, the deflector head will deflect the lower spring seat to one side or the other side. The pressure hook plate includes a first side plate, a second side plate, and a cross plate. The top of the first side plate is provided with a first pressure hook, and the top of the second side plate is provided with a second pressure hook. The first side plate and the second side plate are connected by the cross plate. The first side plate is hinged to a first support plate, and the second side plate is hinged to a second support plate. A transmission cross bar is provided on the side of the first side plate and / or the second side plate. The deflection transmission mechanism includes a transmission vertical plate with a vertical plate groove. The transmission crossbar passes through the vertical plate groove. The upper end of the transmission vertical plate has a first arc-shaped protrusion and a second arc-shaped protrusion. A fixed rod is provided on a first support plate or a second support plate. The lower end of the transmission vertical plate is connected to the transmission shaft via a transmission arm. When the transmission shaft rotates clockwise or counterclockwise, it drives the transmission vertical plate to move upward or downward via the transmission arm. When the movement of the transmission vertical plate reaches the point where the first arc-shaped protrusion or the second arc-shaped protrusion contacts the fixed rod, the transmission vertical plate deflects and drives the pressure hook plate to rotate to release the pressure on the upper spring seat.

2. The synchronization mechanism of the multiphase switch as described in claim 1, characterized in that, The upper spring seat includes a transverse slide rod, and a slide groove is provided on the first support plate and the second support plate, through which the transverse slide rod passes.

3. The synchronization mechanism of the multiphase switch as described in claim 2, characterized in that, A bearing is fitted onto the transverse slide bar, and the cam presses against the bearing when it rotates.

4. The synchronization mechanism of the multiphase switch as described in claim 2, characterized in that, A push spring is provided on the first support plate, and the push spring is connected to the transverse slide bar.

5. The synchronization mechanism of the multiphase switch as described in claim 1, characterized in that, The transmission vertical plate is connected to the reset spring.

6. The synchronization mechanism of the multiphase switch as described in claim 1, characterized in that, The lower spring seat includes a first vertical plate, a second vertical plate, and a portal frame seat. The lower end of the first vertical plate is provided with a first sleeve, and the lower end of the second vertical plate is provided with a second sleeve. The first sleeve and the second sleeve are sleeved on the transmission shaft. The upper end of the first vertical plate and the second vertical plate is provided with the impact crossbar. The two ends of the impact crossbar are installed on the portal frame seat, and the portal frame seat is connected to the lower end of the energy storage spring. The symmetrical double hook plate is located between the first vertical plate and the second vertical plate, and the two ends of the symmetrical double hook plate have symmetrically arranged arc hooks.

7. The synchronization mechanism of the multiphase switch as described in claim 6, characterized in that, The deflector is shaped like a gate and is fitted onto the first support plate and the second support plate. The first support plate has a first through hole and the second support plate has a second through hole. There are two deflector heads, which are respectively inserted into the first through hole and the second through hole. The first deflector head has a first inclined surface and the second deflector head has a second inclined surface. When the deflector moves, the first inclined surface presses against the gate-shaped seat and deflects the lower spring seat to one side, or the second inclined surface presses against the gate-shaped seat and deflects the lower spring seat to the other side.

8. The synchronization mechanism of the multiphase switch as described in claim 1, characterized in that, The driving mechanism is a motor or a worm gear. The output shaft of the motor is connected to the camshaft of the cam, or the worm gear drives the camshaft of the cam via a chain and a ratchet.

9. The synchronization mechanism of the multiphase switch as described in claim 1, characterized in that, The deflector frame is provided with a pin hole, which cooperates with an electromagnetic pin to lock the deflector frame.

10. The synchronization mechanism of the multiphase switch as described in claim 1, characterized in that, The reset mechanism is a reset torsion spring or a reset arm mounted on the drive shaft, and the reset arm is connected to the reset spring.

11. The synchronization mechanism of the multiphase switch as described in claim 8, characterized in that, The camshaft of the cam shown is fixedly connected to the bushing. The bushing is rotatably mounted on the first support plate or the second support plate. The bushing is fixedly connected to the support sleeve plate. A pawl is hinged on the support sleeve plate. A sear slider is provided outside the support sleeve plate. The sear slider moves downward as the energy storage spring is compressed and squeezes the pawl, thereby disengaging the pawl from the ratchet. The sear slider moves upward as the energy storage spring extends and is released from squeezing the pawl, causing the pawl to embed into the ratchet.

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