Operating mechanism of change-over switch

Abstract

An operating mechanism of a change-over switch comprises an energy storage mechanism used for driving a main shaft, the energy storage mechanism comprises a first energy storage mechanism, a second energy storage mechanism and a turnover piece, and when the turnover piece rotates to a first position of the turnover piece from a middle position of the turnover piece or rotates to the middle position of the turnover piece from the first position of the turnover piece, the turnover piece rotates to a second position of the turnover piece. The first energy storage mechanism is driven to store energy firstly and release energy after crossing a balance position to drive the main shaft to rotate to a corresponding main power supply closing position or double-opening position; when the turnover piece rotates from the middle position of the turnover piece to the second position of the turnover piece or rotates from the second position of the turnover piece to the middle position of the turnover piece, the second energy storage mechanism is driven to store energy firstly, and the main shaft is driven to rotate to the corresponding standby power supply switching-on position or double-off position after the second energy storage mechanism crosses the balance position. The operating mechanism further comprises a main shaft locking mechanism which is used for locking the main shaft at the main power supply switching-on position or the standby power supply switching-on position, so that other mechanisms except the operating mechanism are prevented from driving the main shaft to turn over, and the reliability and the safety are improved.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliances, specifically to an operating mechanism for a changeover switch. Background Technology

[0002] Power transmission and distribution systems play an irreplaceable role as a vital support for modern socio-economic and social development. Transfer switches, as crucial components within these systems, fulfill important functions, particularly in applications requiring uninterrupted, reliable, stable, and continuous power output, such as hospitals, intelligent buildings, data centers, power plants, banks, and critical infrastructure. Existing technologies such as CN111986938A, CN109786146A, CN109686598A, CN113838694A, and CN113611553A disclose various types of transfer switches.

[0003] The existing technology has the following problems with the operating mechanism of the changeover switch:

[0004] (1) When the spindle is in the main power supply closed position and the backup power supply closed position, there is no limit structure for the spindle, and it is impossible to prevent other mechanisms outside the operating mechanism from driving the spindle to flip.

[0005] (2) The overall layout is unreasonable and occupies a large amount of space.

[0006] (3) An operating mechanism that can achieve three-position switching and whose switching speed is independent of the speed of the manual operating mechanism and the automatic operating mechanism has a transmission structure that is either complex, has a relatively simple function and low reliability, or has an unreasonable layout that results in a large size.

[0007] (4) After releasing energy, the energy storage mechanism drives other transmission mechanisms to indirectly drive the main shaft to rotate. There are many transmission components, the mechanism is complex and occupies a large space. Utility Model Content

[0008] The purpose of this utility model is to overcome at least one defect of the prior art and provide an operating mechanism for a changeover switch.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] An operating mechanism for a changeover switch includes an energy storage mechanism for driving a main shaft. The energy storage mechanism comprises a first energy storage mechanism, a second energy storage mechanism, and a tilting element. The tilting element is rotatable to a first position, a middle position, and a second position. When the tilting element rotates from the middle position to the first position, or from the first position to the middle position, the first energy storage mechanism stores energy and releases it after passing a balance position, driving the main shaft to rotate to the corresponding main power supply closed position or dual-open position. When the tilting element rotates from the middle position to the second position, or from the second position to the middle position, the second energy storage mechanism stores energy and releases it after passing a balance position, driving the main shaft to rotate to the corresponding backup power supply closed position or dual-open position.

[0011] The operating mechanism also includes a spindle locking mechanism, which includes a first lever and a second lever. The first lever is provided with a first lever locking part, the second lever is provided with a second lever locking part, and the spindle is provided with a first locking part and a second locking part.

[0012] When the flipping component moves to the first position, it avoids the first lever, causing the first elastic component to drive the first lever to move the first lever locking part towards the main shaft. When the main shaft rotates to the main power on position, the first locking part of the main shaft locks with the first lever locking part, preventing the main shaft from rotating to the double split position.

[0013] When the flipping component moves to the second position, it avoids the second lever, causing the second elastic component to drive the second lever and move the second lever locking part towards the main shaft. When the main shaft rotates to the backup power on position, the second locking part of the main shaft locks with the second lever locking part, preventing the main shaft from rotating to the double split position.

[0014] When the flipper rotates from the first position to the middle position, it drives the first lever to overcome the force of the first elastic element and move the first lever locking part away from the main shaft, thus releasing the locking engagement with the first locking part of the main shaft; when the flipper rotates from the second position to the middle position, it drives the second lever to overcome the force of the second elastic element and move the second lever locking part away from the main shaft, thus releasing the locking engagement with the second locking part of the main shaft.

[0015] Preferably, the first elastic element also serves as the second elastic element, that is, the first elastic element and the second elastic element are the same elastic element, and the first elastic element is connected between the first lever and the second lever.

[0016] Preferably, the operating mechanism further includes a toggle member. When the flipping member rotates to the first flipping member position, the middle flipping member position, and the second flipping member position, the toggle member rotates to the first toggle member position, the middle toggle member position, and the second toggle member position respectively. The flipping member cooperates with the first lever and the second lever through the toggle member.

[0017] Preferably, a baffle is also provided, which is fixedly mounted on the main shaft, and the first locking part and the second locking part are mounted on the baffle.

[0018] Preferably, the baffle is integrally formed with the main shaft, or the baffle is fitted onto the main shaft through a baffle mounting hole and rotates synchronously with the main shaft.

[0019] Preferably, the baffle has a circular structure with an arc-shaped side and a locking groove is provided on the arc-shaped side. The two side walls of the locking groove serve as the first locking part and the second locking part, respectively.

[0020] Preferably, the first lever and the second lever are arranged side by side with intervals. The first end of the first lever is rotatable, and the second end is provided with a first lever groove. The first lever groove is fitted onto the first lever limiting shaft to limit the rotation angle of the first lever. The first end of the second lever is rotatable, and the second end is provided with a second lever groove. The second lever groove is fitted onto the second lever limiting shaft to limit the rotation angle of the second lever. The first elastic element and the second elastic element are the same elastic element. The first elastic element is connected between the second end of the first lever and the second end of the second lever. The side of the first lever with the first lever locking part and the side of the second lever with the second lever locking part are arranged relatively apart and located on both sides of the main shaft.

[0021] Preferably, the actuating member is provided with a third actuating part for driving the first lever and the second lever, the third actuating part being located between the second end of the first lever and the second end of the second lever.

[0022] Preferably, the device includes a support, which includes a first side plate and a second side plate. A first energy storage mechanism, a second energy storage mechanism, a flipping component, and a toggle component are disposed between the first side plate and the second side plate. A main shaft passes through the middle of the first side plate and the second side plate. A first lever and a second lever are located on the outer side of the second side plate. A third toggle part on the toggle component extends from the second side plate sliding groove on the second side plate to the space between the second end of the first lever and the second end of the second lever.

[0023] Preferably, the opposing sides of the first lever and the second lever are provided with a first arc-shaped surface, a locking protrusion and a second arc-shaped surface from the first end to the second end, and the locking protrusion on the first lever and the second lever serve as the first lever locking part and the second lever locking part, respectively.

[0024] Preferably, the side of the locking protrusion near the first arc-shaped surface is arc-shaped and is part of the first arc-shaped surface, while the side of the locking protrusion near the second arc-shaped surface is flat.

[0025] Preferably, the opposite sides of the first lever and the second lever are each provided with a second protrusion at the second end for cooperating with the actuating member.

[0026] Preferably, when the actuating member rotates from the middle position to the first position, the flipping member simultaneously rotates from the middle position to the first position and drives the first energy storage mechanism to store energy. The third actuating part of the actuating member drives the second end of the second lever to move the second lever locking part away from the main shaft, and the third actuating part of the actuating member avoids the second end of the first lever. Under the action of the first elastic member, the first lever drives the first lever locking part to move closer to the main shaft. Then, the flipping member drives the first energy storage mechanism to release energy after passing the balance position. Under the energy release drive of the first energy storage mechanism, the main shaft rotates from the double-split position to the main power supply closed position. The first locking part of the main shaft locks with the first lever locking part.

[0027] When the actuating component rotates from the first position to the middle position, the flipping component also rotates from the first position to the middle position and drives the first energy storage mechanism to store energy. The third actuating part of the actuating component drives the first lever to overcome the force of the first elastic component and move the first lever locking part away from the main shaft, so that the first lever locking part leaves the first locking part and releases the lock on the main shaft. After that, the flipping component drives the first energy storage mechanism to release energy after passing the equilibrium position. The main shaft rotates to the double split position under the energy release drive of the first energy storage mechanism.

[0028] When the actuating member rotates from the middle position to the second position, the flipping member rotates from the middle position to the second position and drives the second energy storage mechanism to store energy first. The third actuating part of the actuating member drives the second end of the first lever to move the first lever locking part away from the main shaft, and the third actuating part of the actuating member avoids the second end of the second lever. Under the action of the first elastic member, the second lever drives the second lever locking part to move closer to the main shaft. Then, the flipping member drives the second energy storage mechanism to release energy after passing the balance position. The main shaft is driven to rotate from the double-split position to the backup power supply closed position after the energy storage mechanism releases energy. The second locking part of the main shaft locks with the second lever locking part.

[0029] When the actuating component rotates from the second position to the middle position, the flipping component also rotates from the second position to the middle position and drives the second energy storage mechanism to store energy. The third actuating part of the actuating component drives the second lever to overcome the force of the first elastic component and move the locking part of the second lever away from the main shaft, so that the locking part of the second lever leaves the second locking part and releases the lock on the main shaft. After that, the flipping component drives the second energy storage mechanism to release energy after passing the equilibrium position. The main shaft rotates to the double split position under the energy release drive of the second energy storage mechanism.

[0030] The operating mechanism of the changeover switch of this utility model is provided with a main shaft locking mechanism, which is used to lock the main shaft in the main power supply closed position or the backup power supply closed position, so as to prevent other mechanisms outside the operating mechanism from driving the main shaft to flip, thereby improving reliability and safety.

[0031] Furthermore, the main shaft locking mechanism has a simple and compact overall structure through the cooperation of a first lever, a second lever, a shared first elastic element, and a third actuating part of an actuating element extending between the first lever and the second lever. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the operating mechanism in an embodiment of this application;

[0033] Figure 2a , Figure 2b This is a schematic diagram of the internal structure of the operating mechanism in the dual-split state;

[0034] Figure 2c This is a schematic diagram of the main shaft locking mechanism in the dual-split state of the operating mechanism;

[0035] Figure 3a This is a schematic diagram of the internal structure of the operating mechanism during the transition from the dual-disconnection state to the main power supply closed state.

[0036] Figure 3b This is a schematic diagram of the internal structure of the first energy storage mechanism in a balanced state during the transition of the operating mechanism from the dual-disconnection state to the main power supply closing state.

[0037] Figure 4a , Figure 4b This is a schematic diagram of the internal structure of the operating mechanism when the main power supply is closed;

[0038] Figure 4c This is a schematic diagram of the spindle locking mechanism when the main power supply is on.

[0039] Figure 5a This is a schematic diagram of the internal structure of the operating mechanism during the transition from the main power supply closed state to the dual open state.

[0040] Figure 5bThis is a schematic diagram of the internal structure of the first energy storage mechanism in a balanced state during the transition of the operating mechanism from the main power supply closed state to the dual open state.

[0041] Figure 5c Is the operating mechanism in Figure 5b A schematic diagram of the spindle locking mechanism under the specified state;

[0042] Figure 6a This is a schematic diagram of the internal structure of the operating mechanism during the transition from the dual-disconnection state to the backup power supply closed state.

[0043] Figure 6b This is a schematic diagram of the internal structure of the second energy storage mechanism when it is in a balanced state during the transition of the operating mechanism from the dual-switching state to the backup power supply closing state.

[0044] Figure 7a This is a schematic diagram of the internal structure of the operating mechanism in the standby power supply closed state;

[0045] Figure 7b This is a schematic diagram of the main shaft locking mechanism when the operating mechanism is in the standby power supply closed state;

[0046] Figure 8a This is a schematic diagram of the internal structure of the second energy storage mechanism in a balanced state during the transition of the operating mechanism from the standby power supply closed state to the dual open state.

[0047] Figure 8b Is the operating mechanism in Figure 8a A schematic diagram of the spindle locking mechanism under the specified state;

[0048] Figure 9 This is a structural diagram of the tilting component in the operating mechanism;

[0049] Figure 10a , Figure 10b This is a schematic diagram of the linkage in the operating mechanism;

[0050] Figure 11 This is a structural diagram of the main shaft in the operating mechanism;

[0051] Figure 12 This is a schematic diagram of the baffle in the operating mechanism;

[0052] Figure 13 This is a structural diagram of the actuating component in the operating mechanism;

[0053] Figure 14 This is a schematic diagram of the lever structure in the operating mechanism;

[0054] Figure 15 This is a structural diagram of the first side plate in the operating mechanism;

[0055] The reference numerals in the attached figures include:

[0056] Housing 10, base 101, bracket 102, first side plate 103, second side plate 104, first limiting shaft 1021, second limiting shaft 1022, first energy storage spring fixing shaft 1023, second energy storage spring fixing shaft 1024, first connecting rod limiting part 1025, actuating component mounting shaft 1026, second side plate sliding groove 1041;

[0057] Spindle 6, spindle linkage part 61, spindle clearance notch 62, spindle first connecting section 63, spindle mounting section 64, spindle second connecting section 65, spindle output section 66, baffle mounting groove 67;

[0058] First energy storage mechanism 1, second energy storage mechanism 2, flipping component 3, first energy storage spring 11, first linkage mechanism 12, first driven plate 121, first pulling plate 122, first linkage shaft 123, second energy storage spring 21, second linkage mechanism 22, second driven plate 221, second pulling plate 222, second linkage shaft 223, driven plate rotation hole 1212, driven plate driving part 1213, driven piece 1214, pulling plate limiting shaft 1215, driven plate limiting part 1216;

[0059] Flipping component 3, flipping plate 30, first arc groove 31, second arc groove 32, flipping component rotation hole 33, first linkage part 34;

[0060] Actuating element 4, actuating element pivot part 40, second linkage part 41, first actuating part 42, second actuating part 43, third actuating part 44, actuating element drive part 45, and arc-shaped limiting groove 46;

[0061] First electromagnetic mechanism 7, second electromagnetic mechanism 8, moving rod 782;

[0062] Main shaft locking mechanism 5, first lever 51, second lever 52, first elastic element 53, baffle 54, first lever groove 511, first lever locking part 512, first lever limiting shaft 513, second lever groove 521, second lever locking part 522, second lever limiting shaft 523, first locking part 541, second locking part 542, baffle mounting hole 543, arc-shaped side 544, first arc-shaped surface 551, locking protrusion 552, second arc-shaped surface 553, second protrusion 554. Detailed Implementation

[0063] The specific embodiments of this utility model are further described below with reference to the accompanying drawings. The scope of protection of this utility model is not limited to the description of the following embodiments.

[0064] A changeover switch typically includes an operating mechanism and a switch contact system (not shown in the figure). The operating mechanism is connected to the switch contact system via a spindle 6. The switch contact system is connected to both a main power supply and a backup power supply. Rotation of the spindle 6 causes the switch contact system to switch between main power supply to the load and backup power supply to the load. For a three-position changeover switch, the operating mechanism drives the spindle 6 to rotate between three positions: main power supply closed, double open, and backup power supply closed. When the spindle 6 rotates to the main power supply closed, double open, or backup power supply closed positions, it causes the switch contact system to switch to the main power supply on state, the main power supply and backup power supply both off state, or the backup power supply on state, respectively.

[0065] Refer to this application Figure 1 , Figure 2a The operating mechanism of the changeover switch includes an energy storage mechanism connected to the main shaft 6, as well as a manual operating mechanism and / or an automatic operating mechanism. The energy storage mechanism includes a first energy storage mechanism 1, a second energy storage mechanism 2, and a flipping component 3. The flipping component 3 is rotatably configured. The rotation of the flipping component 3 drives the first energy storage mechanism 1 or the second energy storage mechanism 2 to store energy first. After the first energy storage mechanism 1 or the second energy storage mechanism 2 passes the equilibrium position (dead point position), the first energy storage mechanism 1 or the second energy storage mechanism 2 releases energy to drive the main shaft 6 to rotate rapidly and switch positions. The automatic operating mechanism is used to remotely control the energy storage mechanism to achieve power switching and disconnection. The manual operating mechanism is used to manually drive the energy storage mechanism to achieve power switching and disconnection. The first energy storage mechanism 1 and the second energy storage mechanism 2 have the same structure; one is used for switching the main power supply on and off, and the other is used for switching the backup power supply on and off.

[0066] The flipping component 3 can rotate to a first position, a middle position, and a second position, respectively, to drive the main shaft 6 to rotate to the main power supply closed position, the dual-open position, and the backup power supply closed position. When the flipping component 3 rotates from the middle position to the first position, or from the first position to the middle position, it drives the first energy storage mechanism 1 to store energy first and release energy after passing the equilibrium position (dead point position), directly or indirectly driving the main shaft 6 to rotate to the corresponding main power supply closed position or dual-open position. When the flipping component 3 rotates from the middle position to the second position, or from the second position to the middle position, it drives the second energy storage mechanism 2 to store energy first and release energy after passing the equilibrium position (dead point position), directly or indirectly driving the main shaft 6 to rotate to the corresponding backup power supply closed position or dual-open position. This is the prior art in this field.

[0067] like Figure 1 , Figure 2aAs shown, this embodiment of the operating mechanism includes a housing 10 and an energy storage mechanism disposed within the housing 10. The housing 10 includes a base 101 and a support 102 mounted on the base 101. The support 102 includes a first side plate 103 and a second side plate 104 spaced apart from each other, connected by several fixed shafts. The energy storage mechanism includes a first energy storage mechanism 1, a second energy storage mechanism 2, and a flipping component 3. The first energy storage mechanism 1, the second energy storage mechanism 2, and the flipping component 3 are disposed between the first side plate 103 and the second side plate 104. The first energy storage mechanism 1 and the second energy storage mechanism 2 have identical structures and are symmetrically arranged on both sides of the flipping component 3. A main shaft 6 is rotatably mounted and passes through the middle of the first side plate 103 and the second side plate 104. The operating mechanism also includes a manual operating mechanism and an automatic operating mechanism. The automatic operating mechanism of this embodiment includes a first electromagnetic mechanism 7 and a second electromagnetic mechanism 8, mounted on the base 101 and symmetrically arranged on both sides of the flipping component 3, for driving the flipping component 3 to rotate. The manual operating mechanism of this embodiment includes a toggle member 4, which is connected to and rotatably disposed between the first side plate 103 and the second side plate 104 to drive the rotating member 3 to rotate. In other embodiments, the housing 10 may also be provided with a top cover to cover the bracket 102; or the bracket 102 may be a relatively closed housing structure; or the base 101 may not be provided, and the first electromagnetic mechanism 7 and the second electromagnetic mechanism 8 may also be mounted on the bracket 102, etc.

[0068] Another improvement of this application is the provision of a spindle locking mechanism 5, which is used to lock the spindle 6 in the main power-on position or the backup power-on position. When the flipping member 3 rotates to the first position of the flipping member, the spindle locking mechanism 5 is driven to lock the spindle 6, so that the spindle 6 cannot rotate to the double-split position. When the flipping member 3 rotates to the middle position of the flipping member, the spindle locking mechanism 5 is driven to release the lock on the spindle 6. When it rotates to the second position of the flipping member, the spindle locking mechanism 5 is driven to lock the spindle 6, so that the spindle 6 cannot rotate to the double-split position. This prevents other mechanisms outside the operating mechanism from driving the spindle 6 to flip, thereby improving reliability and safety.

[0069] like Figure 2c , Figure 11 , Figure 12 as well as Figure 14As shown, the spindle locking mechanism 5 in this embodiment includes a first lever 51 and a second lever 52. The first lever 51 is provided with a first lever locking part 512, and the second lever 52 is provided with a second lever locking part 522. The spindle 6 is provided with a first locking part 541 and a second locking part 542. When the flipping member 3 moves to the first position of the flipping member, it avoids the first lever 51, so that the first elastic member 53 drives the first lever 51 to move the first lever locking part 512 towards the spindle 6. When the spindle 6 rotates to the main power on position, the first locking part 541 of the spindle 6 locks with the first lever locking part 512, so that the spindle 6 cannot rotate to the double-split position, locking the spindle 6 in the main power on position. When the flipping member 3 moves to the second position of the flipping member, it avoids the second lever 52, so that the second elastic member drives the second lever 52 to move the first lever locking part 541 and the second locking part 542 towards the spindle 6. The second lever locking part 522 moves towards the main shaft 6. When the main shaft 6 rotates to the backup power on position, the second locking part 542 of the main shaft 6 locks with the second lever locking part 522, preventing the main shaft 6 from rotating to the split position and locking the main shaft 6 in the backup power on position. When the flipping part 3 rotates from the first position to the middle position, it drives the first lever 51 to overcome the force of the first elastic member 53 and move the first lever locking part 512 away from the main shaft 6, releasing the locking engagement with the first locking part 541 of the main shaft 6. When the flipping part 3 rotates from the second position to the middle position, it drives the second lever 52 to overcome the force of the second elastic member and move the second lever locking part 522 away from the main shaft 6, releasing the locking engagement with the second locking part 542 of the main shaft 6.

[0070] like Figure 2c , Figure 4c , Figure 5c , Figure 7b as well as Figure 8b In a preferred embodiment shown, the first elastic element 53 also serves as the second elastic element, that is, the first elastic element 53 and the second elastic element are the same elastic element. The first elastic element 53 is connected between the first lever 51 and the second lever 52. Only one first elastic element 53 needs to be provided, which simplifies the structure.

[0071] In this embodiment, the spindle locking mechanism 5 further includes a baffle 54, which is fixedly mounted on the spindle 6. A first locking part 541 and a second locking part 542 are mounted on the baffle 54. (Reference) Figure 12 In this embodiment, the baffle 54 has a baffle mounting hole 543 in the middle, and the baffle 54 is fitted onto the main shaft 6 through the baffle mounting hole 543 and rotates integrally with the main shaft 6. In other embodiments, the baffle 54 can also be integrally formed with the main shaft 6, that is, the first locking part 541 and the second locking part 542 are directly provided on the main shaft 6.

[0072] Another improvement of this application is that the operating mechanism further includes a toggle 4, which can be used as part of a manual operating mechanism, and / or as part of an automatic operating mechanism, and / or to cooperate in locking the positions of the flipper 3 and the main shaft 6.

[0073] The following describes the cooperative structure between the toggle member 4 and the flipping member 3, using the toggle member 4 as a manual operating mechanism. In this embodiment, the manual operating mechanism includes the toggle member 4, which is drivenly connected to the flipping member 3, and is used to drive the flipping member 3 to rotate to the first position, the middle position, and the second position. Figure 9 and Figure 13 As shown, in this embodiment, the actuating member 4 is rotatably configured, the flipping member 3 is provided with a first linkage part 34, and the actuating member 4 is provided with a second linkage part 41. The actuating member 4 is linked with the flipping member 3 through the second linkage part 41. The actuating member 4 can rotate to a first position, a middle position, and a second position. The first and second positions are symmetrically arranged on both sides of the middle position. When the actuating member 4 rotates to the first, middle, and second positions, it drives the flipping member 3 to rotate to the corresponding positions, and the flipping member 3 drives the first energy storage mechanism 1 or the second energy storage mechanism 2 to rotate the main shaft 6. Preferably, when the flipping member 3 rotates to the first, middle, and second positions, it drives the actuating member 4 to rotate to the corresponding positions, so that the actuating member 4 can indicate the state of the flipping member 3. Preferably, the actuating element 4 is used to drive the indicating mechanism to indicate the state of the operating mechanism. Obviously, as another embodiment, the rotation of the actuating element 4 can drive the rotation of the flipping element 3 in one direction, while the rotation of the flipping element 3 can not drive the actuating element 4, which is also within the scope of protection of this application.

[0074] In this embodiment, as Figure 2a , Figure 9 and Figure 13 As shown, the first linkage part 34 and the second linkage part 41 are gears, and the flipping member 3 and the actuating member 4 are linked by gear meshing. Obviously, as other embodiments, the flipping member 3 and the actuating member 4 can also be driven and connected by means of hinge, drive rod and drive groove cooperation, etc. For example, a drive groove is provided on the flipping member 3, and the actuating member 4 can be provided with a drive rod that cooperates with it. The drive rod is inserted into the drive groove and drives the flipping member 3 to rotate to both sides by pushing the two side walls of the drive groove; in addition, the actuating member 4 can also indirectly drive the flipping member 3 through a transmission mechanism such as a connecting rod or lever; all of these are within the protection scope of this application.

[0075] like Figure 8a and Figure 13As shown, the actuating element 4 is provided with a driving part 45 for manual operation, used to drive the actuating element 4 to rotate. In this embodiment, the driving part 45 is a hole-like structure, and the actuating element 4 is driven to rotate by inserting a driving rod. Obviously, as another embodiment, the driving part 45 can also be a protruding handle, with the handle extending out of the housing of the operating mechanism, and the actuating element 4 can be driven to rotate by directly operating the handle. In addition, the manual operating mechanism can also include other transmission mechanisms, which can indirectly drive the actuating element 4 to rotate. If the actuating element 4 is driven by an electric mechanism, the actuating element 4 can be used as part of the automatic operating mechanism and is not used in the manual operating mechanism. For example, the automatic operating mechanism includes a first electromagnetic mechanism 7 and a second electromagnetic mechanism 8. The first electromagnetic mechanism 7 and the second electromagnetic mechanism 8 each include an electromagnetic component and a moving rod 782 connected to the electromagnetic component. When the electromagnetic component is energized, it drives the moving rod 782 to drive the actuating element 4 to rotate. Alternatively, the automatic operating mechanism includes a motor and a gear set connected to the motor. The motor drives the actuating element 4 to rotate through the gear set. The gear set and the actuating element 4 can be connected by an incomplete gear transmission.

[0076] Another improvement of this application is that the flipping component 3 drives the main shaft locking mechanism 5 through the actuating component 4. When the flipping component 3 rotates to the first position, the middle position, and the second position, the actuating component 4 rotates to the first position, the middle position, and the second position respectively. When the actuating component 4 rotates to the first position and the second position, it drives the main shaft locking mechanism 5 to lock the main shaft 6, preventing the main shaft 6 from rotating to the split position. When the actuating component 4 rotates to the middle position, it drives the main shaft locking mechanism 5 to release the lock on the main shaft 6. Of course, the flipping component 3 can also directly drive the first lever 51 and the second lever 52, or drive the first lever 51 and the second lever 52 through other transmission structures.

[0077] Specifically, such as Figure 2c , Figure 4c , Figure 5c , Figure 7b as well as Figure 8bAs shown, the spindle locking mechanism 5 in this embodiment includes a first lever 51, a second lever 52, a first elastic element 53, and a baffle 54. The first lever 51 and the second lever 52 are arranged side by side with intervals. The first end of the first lever 51 is rotatably disposed, and the second end is provided with a first lever groove 511. The first lever groove 511 is fitted onto the first lever limiting shaft 513 of the bracket 102 to limit the rotation angle of the first lever 51. The first end of the second lever 52 is rotatably disposed, and the second end is provided with a second lever groove 521. The second lever groove 521 is fitted onto the second lever limiting shaft 523 of the bracket 102 to limit the rotation angle of the second lever 52. The first elastic element 53 is connected between the second end of the first lever 51 and the second end of the second lever 52, and is used to drive the second end of the first lever 51 and the second lever 52. The two ends are close to each other. The actuating member 4 is provided with a third actuating part 44, which is located between the second end of the first lever 51 and the second end of the second lever 52. The first lever 51 is provided with a first lever locking part 512 on its side, and the second lever 52 is provided with a second lever locking part 522 on its side. They are respectively located on both sides of the main shaft 6. The baffle 54 is fixedly installed on the main shaft 6 and rotates with the main shaft 6. The baffle 54 is located between the first lever 51 and the second lever 52. The side of the baffle 54 is provided with a first locking part 541 and a second locking part 542. The first locking part 541 cooperates with the first lever locking part 512 to lock the main shaft 6 in the main power on position. The second locking part 542 cooperates with the second lever locking part 522 to lock the main shaft 6 in the backup power on position.

[0078] like Figure 2c As shown, in the split state, the actuating member 4 is located in the middle position of the actuating member, the flipping member 3 is located in the middle position of the flipping member, the main shaft 6 is located in the split position, and the third actuating part 44 of the actuating member 4 is also located in the middle position. Due to the action of the first elastic member 53, the second end of the first lever 51 and the second end of the second lever 52 simultaneously contact the third actuating part 44 of the actuating member 4. The first lever locking part 512 of the first lever 51 and the second lever locking part 522 of the second lever 52 are respectively misaligned with the corresponding first locking part 541 and second locking part 542, corresponding to the arc-shaped side 544 of the baffle 54, and the main shaft 6 is not locked.

[0079] like Figure 2c and Figure 4cAs shown, when the actuating member 4 rotates from the middle position to the first position, the flipping member 3 simultaneously rotates from the middle position to the first position and drives the first energy storage mechanism 1 to store energy. The third actuating part 44 of the actuating member 4 drives the second end of the second lever 52, causing the second lever locking part 522 to move away from the main shaft 6 and leave the baffle 54. The third actuating part 44 of the actuating member 4 avoids the second end of the first lever 51. Under the action of the first elastic member 53, the first lever 51 drives the first lever locking part 512 to move closer to the main shaft 6, applying a greater force. Afterwards, the flipping member 3 drives the first energy storage mechanism 1 to release energy after passing the equilibrium position. The main shaft 6 also rotates from the dual-position position to the main power supply closed position under the energy release drive of the first energy storage mechanism 1 (from the... Figures 2c to 4c During the process (rotating counterclockwise), the first locking part 541 of the main shaft 6 locks with the first lever locking part 512, preventing the main shaft 6 from rotating to the split position (cannot rotate towards the split position). Figure 4c Rotate clockwise to lock spindle 6 in the main power-on position. (Continue to refer to...) Figure 4c When the actuating member 4 rotates from the first position to the middle position, the flipping member 3 also rotates from the first position to the middle position, driving the first energy storage mechanism 1 to store energy. The third actuating part 44 of the actuating member 4 drives the first lever 51 to overcome the force of the first elastic member 53, causing the first lever locking part 512 to move away from the main shaft 6, so that the first lever locking part 512 leaves the first locking part 541 of the baffle 54, releasing the lock on the main shaft 6. Afterwards, the flipping member 3 drives the first energy storage mechanism 1 to release energy after passing the equilibrium position, and the main shaft 6 rotates to the double-split position under the energy release drive of the first energy storage mechanism 1. Among them, the main shaft locking mechanism 5 in the double-split position is in Figure 2c As shown in the image.

[0080] like Figure 2c and Figure 7b As shown, when the actuating member 4 rotates from the middle position to the second position, the flipping member 3 rotates from the middle position to the second position and drives the second energy storage mechanism 2 to store energy first. The third actuating part 44 of the actuating member 4 drives the second end of the first lever 51 to move the first lever locking part 512 away from the main shaft 6 and away from the baffle 54. The third actuating part 44 of the actuating member 4 avoids the second end of the second lever 52. Under the action of the first elastic member 53, the second lever 52 drives the second lever locking part 522 to move closer to the main shaft 6 and also applies a greater force. Afterwards, the flipping member 3 drives the second energy storage mechanism 2 to release energy after passing the equilibrium position. The release of energy by the second energy storage mechanism 2 drives the main shaft 6 to rotate from the double-open position to the backup power supply closed position (from the... Figures 2c to 7b During the process (clockwise rotation), the second locking part 542 of the main shaft 6 locks with the second lever locking part 522, preventing the main shaft 6 from rotating to the split position (cannot rotate towards the split position). Figure 7b Rotate counterclockwise to lock the main shaft 6 in the backup power supply closed position.

[0081] When the actuating member 4 rotates from the second position to the middle position, the flipping member 3 also rotates from the second position to the middle position and drives the second energy storage mechanism 2 to store energy. The third actuating part 44 of the actuating member 4 drives the second lever 52 to overcome the force of the first elastic member 53 and drive the second lever locking part 522 to move away from the main shaft 6, so that the second lever locking part 522 leaves the second locking part 542 of the baffle 54 and releases the lock on the main shaft 6. After that, the flipping member 3 drives the second energy storage mechanism 2 to release energy after passing the balance position, and the main shaft 6 rotates to the double split position under the energy release drive of the second energy storage mechanism 2.

[0082] like Figure 12 As shown, this is one embodiment of the baffle 54. The baffle 54 has a circular structure with an arc-shaped side 544, and a locking groove is formed on the arc-shaped side 544. The two side walls of the locking groove serve as the first locking part 541 and the second locking part 542, respectively. A baffle mounting hole 543 is provided in the middle of the baffle 54, and the baffle 54 is mounted on the main shaft 6 through the baffle mounting hole 543 and rotates integrally with the main shaft 6. In other embodiments, the baffle 54 can also be integrally formed with the main shaft 6.

[0083] like Figure 14 As shown, this is one embodiment of the first lever 51. The second lever 52 has the same structure as the first lever 51. The first lever 51 and the second lever 52 are plate-shaped structures. Each of them has a rotating hole at its first end, allowing it to be rotatably mounted on the bracket 102. Each of them has an arc-shaped hole at its second end, which serves as the first lever groove 511 and the second lever groove 521, respectively.

[0084] The opposing sides of the first lever 51 and the second lever 52, from the first end to the second end, are sequentially provided with a first arc-shaped surface 551, a locking protrusion 552, and a second arc-shaped surface 553. The locking protrusions 552 on the first lever 51 and the second lever 52 respectively serve as the first lever locking part 512 and the second lever locking part 522. Preferably, the side of the locking protrusion 552 near the first arc-shaped surface 551 is arc-shaped and is part of the first arc-shaped surface 551. The arc-shaped side 544 of the baffle 54 can cooperate with the first arc-shaped surface 551 to facilitate lifting the first lever 51 or the second lever 52 so that the first locking part 541 or the second locking part 542 locks with the corresponding first lever locking part 512 and the second lever locking part 522. The side of the locking protrusion 552 near the second arc-shaped surface 553 is flat and is used to lock and cooperate with the first locking part 541 of the spindle 6. Preferably, the opposite sides of the first lever 51 and the second lever 52 are each provided with a second protrusion 554 at the second end, which is used to cooperate with the third actuating part 44 of the actuating member 4.

[0085] like Figure 2a , Figure 2b As shown, another improvement of this application lies in the structural design of the energy storage mechanism, providing a new energy storage mechanism. The energy storage mechanism includes a first energy storage mechanism 1, a second energy storage mechanism 2, and a flipping component 3. The flipping component 3 is rotatably disposed and is provided with a first arc groove 31 and a second arc groove 32. The first energy storage mechanism 1 and the second energy storage mechanism 2 each include a linkage mechanism and an energy storage spring. The linkage mechanism includes a pulling plate and a driven plate. One end of the energy storage spring is rotatably disposed, and the other end is connected to one end of the pulling plate. The other end of the pulling plate is hinged to the driven plate through a linkage shaft. The driven plate is rotatably disposed and is directly or indirectly connected to the main shaft 6. The linkage shafts of the first energy storage mechanism 1 and the second energy storage mechanism 2 are respectively installed in the first arc groove 31 and the second arc groove 32 of the flipping component 3. The connecting shafts of the first energy storage mechanism 1 and the second energy storage mechanism 2 can slide within the corresponding first arc groove 31 and second energy storage mechanism 2. When the flipping member 3 rotates, it drives the corresponding connecting shaft through one of the two end side walls of the first arc groove 31 or the second arc groove 32, causing the connecting mechanism of the first energy storage mechanism 1 or the second energy storage mechanism 2 to move. This causes the corresponding energy storage spring to store energy first and release energy after passing the equilibrium position, driving the connecting mechanism to drive the main shaft 6 to rotate. The connecting shaft slides to the other end of the first arc groove 31 and the second arc groove 32. The two end side walls of the first arc groove 31 drive the connecting shaft to move in different directions.

[0086] The rotation of the flipping component 3 drives the connecting shaft of the first energy storage mechanism 1 through the first arc groove 31, thereby causing the connecting mechanism of the first energy storage mechanism 1 to move. This causes the energy storage spring of the first energy storage mechanism 1 to store energy first and then release energy after passing the equilibrium position. The release of energy from the energy storage spring of the first energy storage mechanism 1 drives the connecting mechanism of the first energy storage mechanism 1 to move, thereby causing the main shaft 6 to rotate. Alternatively, the rotation of the flipping component 3 drives the connecting shaft of the second energy storage mechanism 2 through the second arc groove 32, thereby causing the connecting mechanism of the second energy storage mechanism 2 to move. This causes the energy storage spring of the second energy storage mechanism 2 to store energy first and then release energy after passing the equilibrium position. The release of energy from the energy storage spring of the second energy storage mechanism 2 drives the connecting mechanism of the second energy storage mechanism 2 to rotate the main shaft 6.

[0087] like Figure 2a , Figure 2b , Figure 9 and Figure 15 As shown, the flipping component 3 includes a first arcuate groove 31 and a second arcuate groove 32. In this embodiment, the flipping component 3 is rotatably mounted on the main shaft 6 and rotates around the main shaft 6. Of course, the main shaft 6 can also be mounted on other rotating shafts instead of the main shaft 6. The linkage mechanisms of the first energy storage mechanism 1 and the second energy storage mechanism 2 are the first linkage mechanism 12 and the second linkage mechanism 22, respectively. The energy storage springs of the first energy storage mechanism 1 and the second energy storage mechanism 2 are the first energy storage spring 11 and the second energy storage spring 21, respectively. The connecting shafts of the first energy storage mechanism 1 and the second energy storage mechanism 2 are the first connecting shaft 123 and the second connecting shaft 223, respectively. Figure 15 A schematic diagram of the structure of the first side plate 103 of this application is shown.

[0088] The first linkage mechanism 12 has a pull plate and a driven plate, which are respectively a first driven plate 121 and a first pull plate 122. The first driven plate 121 is rotatably set and connected to the main shaft 6. The first driven plate 121 is hinged to one end of the first pull plate 122 through the first connecting shaft 123. The other end of the first pull plate 122 is connected to one end of the first energy storage spring 11. The other end of the first energy storage spring 11 is connected to the first energy storage spring fixing shaft 1023 of the bracket 102. The first connecting shaft 123 is movably installed in the first arc groove 31 of the flipping part 3. The flipping component 3 drives the first connecting rod shaft 123 through one end sidewall of the first arc-shaped sliding groove 31, causing the first driven plate 121 and the first pulling plate 122 to rotate. This causes the first energy storage spring 11 to store energy first. After the first energy storage spring 11 passes the equilibrium position, it releases energy and drives the first driven plate 121 to rotate through the first pulling plate 122 and the first connecting rod shaft 123. The first driven plate 121 then drives the main shaft 6 to rotate. The equilibrium position is as follows: Figure 3bIn the example, the rotation axis of the first energy storage spring 11, the first driven plate 121 and the first connecting rod shaft 123 are in the same straight line. After the first energy storage spring 11 releases energy, the first connecting rod shaft 123 slides to the other side wall of the first arc groove 31.

[0089] The structure of the second linkage mechanism 22 is similar to that of the first linkage mechanism 12. The pulling plate and the driven plate of the second linkage mechanism 22 are the second driven plate 221 and the second pulling plate 222, respectively. The second driven plate 221 is hinged to one end of the second pulling plate 222 through the second linkage shaft 223. The other end of the second pulling plate 222 is connected to one end of the second energy storage spring 21. The other end of the second energy storage spring 21 is connected to the second energy storage spring fixing shaft 1024 of the bracket 102. The second linkage shaft 223 is movably installed in the second arc groove 32 of the flipping part 3. The flipping component 3 drives the second connecting rod shaft 223 through one end sidewall of the second arc groove 32, causing the second driven plate 221 and the second pulling plate 222 to rotate, so that the second energy storage spring 21 stores energy first. After the second energy storage spring 21 passes the equilibrium position, the second energy storage spring 21 releases energy and drives the second driven plate 221 to rotate through the second pulling plate 222 and the second connecting rod shaft 223. After the driven part 1213 of the driven plate contacts and limits the main shaft linkage part 61, the second driven plate 221 drives the main shaft 6 to rotate. After the second energy storage spring 21 releases energy, the second connecting rod shaft 223 slides to the other end sidewall of the second arc groove 32.

[0090] In this way, during the energy storage process, the main shaft 6 does not move. After the energy storage mechanism releases energy, it drives the main shaft 6 to rotate quickly to switch the power. The switching speed of the automatic transfer switch is independent of the speed of the manual and automatic operating mechanisms. This ensures that the operating mechanism can quickly drive the main shaft 6 to switch the power, reduce the burning of the switch contact system by the electric arc, and improve the performance and reliability of the transfer switch.

[0091] The driven plates of the first energy storage mechanism 1 and the second energy storage mechanism 2, namely the first driven plate 121 and the second driven plate 221, can be directly or indirectly connected to the main shaft 6. In this embodiment, both the first energy storage mechanism 1 and the second energy storage mechanism 2 are provided with driven plate rotation holes 1212, and driven plate driving parts 1213 are provided in the driven plate rotation holes 1212. The main shaft 6 is provided with a main shaft linkage part 61. The driven plate is sleeved on the main shaft 6 through the driven plate rotation holes 1212. The driven plate can rotate around the main shaft 6, and after the driven plate driving part 1213 contacts and is limited by the main shaft linkage part 61, the driven plate drives the main shaft 6 to rotate. The operating mechanism of this embodiment directly installs the driven plate of the linkage mechanism on the main shaft 6. The driven plate can rotate around the main shaft 6, and after the driven plate driving part 1213 contacts the main shaft linkage part 61, it drives the main shaft 6 to rotate. There is no need for a redundant transmission structure, which has the characteristics of simple and compact structure.

[0092] In particular, when the flipping member 3 drives the first energy storage mechanism 1 to store energy and release energy after passing the equilibrium position, the driven part 1213 of the driven plate of the first energy storage mechanism 1 only contacts and limits the main shaft linkage part 61 when the energy storage spring of the first energy storage mechanism 1 reaches the equilibrium position or after passing the equilibrium position. That is, during the energy storage process before the energy storage spring of the first energy storage mechanism 1 reaches the equilibrium position, the driven plate of the first energy storage mechanism 1 rotates around the main shaft 6, and the driven part 1213 moves in the direction close to the main shaft linkage part 61. The two do not contact and limit each other, and the main shaft 6 is not driven to rotate during this process. When the flipping member 3 drives the second energy storage mechanism 2 to store energy and release energy after passing the equilibrium position, the driven part 1213 of the driven plate of the second energy storage mechanism 2 only contacts and limits the main shaft linkage part 61 when the energy storage spring of the second energy storage mechanism 2 reaches the equilibrium position or after passing the equilibrium position. That is, during the energy storage process before the energy storage spring of the second energy storage mechanism 2 reaches the equilibrium position, the driven plate of the second energy storage mechanism 2 rotates around the main shaft 6, and the driven part 1213 moves in the direction close to the main shaft linkage part 61. The two do not contact and limit each other. This process does not drive the main shaft 6 to rotate.

[0093] Of course, as another inferior embodiment, the driven plates of the first energy storage mechanism 1 and the second energy storage mechanism 2 can also be sleeved on the main shaft 6 and fixedly connected to the main shaft 6, rotating synchronously. However, this solution requires a larger operating force when performing opening and closing operations. As another inferior embodiment, the driven plates of the first energy storage mechanism 1 and the second energy storage mechanism 2 can also be rotatably arranged on both sides of the main shaft 6, driving the main shaft 6 to rotate through the protruding structure on the outer side of the driven plate, or indirectly driving the main shaft 6 to rotate through a transmission mechanism. For example, the transmission mechanism is two incomplete gears driving a connection, or the transmission mechanism is a connecting rod and a sliding groove driving a connection, etc.

[0094] Specifically, such as Figures 10a-11 As shown, the first driven plate 121 and the second driven plate 221 in this embodiment have similar structures, both having a driven plate rotation hole 1212. A protruding structure is provided within the driven plate rotation hole 1212 as a driven plate driving part 1213. The main shaft 6 has a main shaft linkage part 61 that cooperates with the driven plate driving part 1213. The main shaft 6 has an arc-shaped sidewall for rotating the driven plate rotation hole 1212, and a main shaft clearance notch 62 for avoiding the driven plate driving part 1213. The connection between the spindle clearance notch 62 and the arc sidewall also serves as the spindle linkage part 61. The driven plates of the first energy storage mechanism 1 and the second energy storage mechanism 2 can rotate within the area corresponding to the driven plate driving part 1213 and the spindle clearance notch 62. When the driven plate driving part 1213 rotates to the connection between the spindle clearance notch 62 and the arc sidewall, it contacts and limits the spindle linkage part 61. The rotation of the driven plates of the first energy storage mechanism 1 and the second energy storage mechanism 2 can drive the spindle 6 to rotate.

[0095] like Figure 11 As shown, the spindle 6 includes a first spindle connecting section 63, a spindle mounting section 64, a second spindle connecting section 65, and a spindle output section 66 arranged sequentially. The cross-section of the spindle mounting section 64 includes alternating arc-shaped sidewalls and planar sidewalls. The arc-shaped sidewalls are used for the rotation of the driven plate, and the notches in the planar sidewalls serve as spindle clearance notches 62. The connection between the spindle clearance notches 62 and the arc-shaped sidewalls is the spindle linkage part 61. In this embodiment, the cross-sections of the first spindle connecting section 63, the spindle mounting section 64, the second spindle connecting section 65, and the spindle output section 66 are all oval, including two oppositely arranged arc-shaped sidewalls and two oppositely arranged planar sidewalls. The corresponding driven plate is also provided with two driven plate driving parts 1213. The first connecting section 63 and the second connecting section 65 of the spindle correspond to the first side plate 103 and the second side plate 104, respectively. The spindle mounting section 64 is located between the first side plate 103 and the second side plate 104 and is used to mount the first driven plate 121, the second driven plate 221, and the flipping component 3. The spindle output section 66 is used to connect with the switch contact system. A baffle mounting groove 67 is also provided on the second connecting section 65 of the spindle for mounting the baffle 54. Figure 12 Obviously, as in other embodiments, the cross-sections of the first connecting segment 63 of the spindle, the second connecting segment 65 of the spindle, and the output segment 66 of the spindle can also be other shapes, such as rectangles, polygons, etc.

[0096] It should be noted that one or more driven plates 1213 can be provided in the driven plate rotation hole 1212, and the corresponding spindle clearance notch 62 can also be one or more. Furthermore, as another embodiment, the spindle clearance notch 62 is a groove structure opened on the arcuate sidewall of the spindle, with the driven plate 1213 extending into the groove structure, and the sidewalls on both sides of the groove structure serving as the spindle linkage part 61. As another embodiment, the driven plate 1213 is a groove structure within the driven plate rotation hole 1212, and the spindle linkage part 61 is a protruding structure protruding radially from the spindle 6. The protruding structure on the spindle 6 extends into the groove structure of the driven plate rotation hole 1212, allowing the driven plate to rotate around the arcuate sidewall of the spindle 6 within the area corresponding to the groove structure and the protruding structure. When the sidewall of the groove structure contacts the protruding structure of the spindle 6, the driven plate is limited in contact with the spindle 6.

[0097] The operating mechanism of this embodiment is a three-position changeover switch operating mechanism. The flipping component 3 is rotatably configured to rotate to the first position, the middle position, and the second position. The first and second positions are symmetrically arranged on both sides of the middle position. The main shaft 6 can rotate between three positions: the main power supply closed position, the dual-open position, and the backup power supply closed position. When the flipping component 3 is in the middle position, the main shaft 6 is in the dual-open position. When the flipping component is in the first position, the main shaft 6 is in the main power supply closed position. When the flipping component is in the second position, the main shaft 6 is in the backup power supply closed position.

[0098] When the flipper 3 rotates from the middle position to the first position, or from the first position to the middle position, the first linkage mechanism 12 drives the first energy storage spring 11 to store energy and then release energy after passing the balance position (dead point position). The release of energy by the first energy storage spring 11 drives the first linkage mechanism 12 to rotate the main shaft 6 to the corresponding main power supply closed position or double open position. When the flipper 3 rotates from the middle position to the second position, or from the second position to the middle position, the second linkage mechanism 22 drives the second energy storage spring 21 to store energy and then release energy after passing the balance position (dead point position). The release of energy by the second energy storage spring 21 drives the second linkage mechanism 22 to rotate the main shaft 6 to the corresponding backup power supply closed position or double open position.

[0099] The specific operation process of the energy storage mechanism in this embodiment is as follows: Figure 2b , Figure 2c , Figure 3a , Figure 3b , Figure 4a , Figure 4b , Figure 4c , Figure 5a and Figure 5b As shown, when the flipping component 3 rotates from the middle position to the first position, or from the first position to the middle position, the first connecting rod shaft 123 is basically located at one end sidewall of the first arc groove 31. The flipping component 3 drives the first connecting rod shaft 123 through the end sidewall of the first arc groove 31, thereby driving the first driven plate 121 and the first pulling plate 122 to move. The first pulling plate 122 is pulled by force to store energy in the first energy storage spring 11. When the first energy storage spring 11 is in the equilibrium position, the energy storage is completed. The equilibrium position is as follows: Figure 3b and Figure 5b As shown, the rotation axes of the first energy storage spring 11 and the first driven plate 121, and the first connecting rod shaft 123 are in the same straight line and are in force balance. The forces on the first energy storage spring 11 and the first connecting rod shaft 123 cancel each other out, and the flipping part 3 continues to rotate counterclockwise under force (as shown). Figure 3b ) or the flipping part 3 continues to rotate clockwise under force (such as Figure 5b After the first driven plate 121 and the first pulling plate 122 drive the first energy storage spring 11 slightly past the balance position, the flipping part 3 reaches the first position or the middle position of the flipping part. The driven part 1213 of the driven plate contacts and limits the contact with the main shaft linkage part 61. The energy of the first energy storage spring 11 is released. The first energy storage spring 11 pulls the first pulling plate 122, so that the first pulling plate 122 drives the first driven plate 121 to rotate through the first connecting rod shaft 123. The first driven plate 121 drives the main shaft 6 to rotate to the corresponding main power supply closed position or double open position through the driven part 1213, realizing the state switching of the automatic transfer switch. After the first energy storage spring 11 releases energy, the first connecting rod shaft 123 slides from one end of the side wall of the first arc groove 31 to the other end of the first arc groove 31, and the flipping part 3 does not rotate. During this process, the second linkage shaft 223 of the second linkage mechanism 22 slides in the second arcuate groove 32 of the flipping member 3, sliding from one end sidewall of the second arcuate groove 32 to the other end sidewall, and the second linkage mechanism 22 does not move. The driven part 1213 of the first driven plate 121 and the main shaft linkage part 61 of the main shaft 6 can contact each other at the equilibrium position or after the first energy storage spring 11 releases energy.

[0100] like Figure 2b , Figure 6a , Figure 6b , Figure 7a and Figure 8a As shown, when the flipping component 3 rotates from the middle position to the second position, or from the second position to the middle position, the flipping component 3 drives the second linkage mechanism 22 to move via the second arc groove 32 and the second linkage shaft 223. The movement process is similar to that of the first linkage mechanism 12 and the first energy storage spring 11, and will not be described again. During this process, the first linkage shaft 123 of the first linkage mechanism 12 slides in the first arc groove 31 of the flipping component 3, and the first linkage mechanism 12 does not move.

[0101] Preferably, the operating mechanism is provided with a first link limiting part 1025 and a second link limiting part, which are respectively used to limit the rotational position of the driven plate after the first energy storage mechanism 1 and the second energy storage mechanism 2 release energy, so as to accurately and reliably limit the rotational position of the main shaft 6. In this embodiment, the first link limiting part 1025 and the second link limiting part are provided on the bracket 102. Of course, as another embodiment, the first link limiting part 1025 and the second link limiting part may not be provided, and the rotational position of the first driven plate 121 and the second driven plate 221 may be limited only by the side walls at both ends of the first arc groove 31 and the second arc groove 32 of the flipping member 3.

[0102] like Figure 10a , 10bAs shown, a preferred embodiment of the first linkage mechanism 12 and the second linkage mechanism 22 has the same structure, both including their respective driven plates and pulling plates. The structure of the driven plates and pulling plates is described below using the driven plates and pulling plates of the first linkage mechanism 12 as an example. The first driven plate 121 includes a driven plate rotating part, with a driven plate rotating hole 1212 in the middle of the driven plate rotating part. A driven plate connecting part is provided on the radially outer side of the driven plate rotating part. The driven plate connecting part is hinged to one end of the first pulling plate 122 through a first connecting rod shaft 123. A protruding structure is provided in the driven plate rotating hole 1212 as a driven plate driving part 1213. A driven plate limiting part 1216 is also provided on the radially outer side of the driven plate rotating part, which is used to cooperate with the first connecting rod limiting part 1025 and the second connecting rod limiting part on the bracket 102. The driven plate limiting part 1216 and the driven plate connecting part are respectively located on both sides of the driven plate rotating part. The first pull plate 122 has a plate-like structure. Its first end is connected to the first energy storage spring 11, and its second end is connected to the first driven plate 121. A bend is present between the first and second ends of the first pull plate 122. In this embodiment, the bend makes the first pull plate 122 a V-shaped or U-shaped structure. This structure helps to avoid the main shaft 5 during the rotation of the first linkage mechanism 12, reduces the rotation distance between the first driven plate 121 and the first pull plate 122, and reduces the space occupied. In other embodiments, the first pull plate 122 may also be a straight structure or have other shapes or multiple bends.

[0103] like Figure 2b As shown, the first energy storage mechanism 1 and the second energy storage mechanism 2 are arranged symmetrically along the axis of symmetry, which is as follows: Figure 2b A vertical line passing through the rotation axis of the flipping member 3 or the main shaft 6, that is, a vertical line passing through the rotation axis of the first driven plate 121, is drawn in the vertical direction. The axis of symmetry is perpendicular to the axial direction of the main shaft 6 and passes through the rotation axis of the flipping member 3. The first energy storage spring 11 and the second energy storage spring 21 are respectively located on both sides of this axis of symmetry. The two ends of the first pulling plate 122 are also respectively located on both sides of this axis of symmetry. The two ends of the second pulling plate 222 are also respectively located on both sides of this axis of symmetry. The first energy storage spring fixing shaft 1023, the first energy storage spring 11, the first end of the first pulling plate 122, and the second end of the second pulling plate 222 are located on one side of the axis of symmetry. Figure 2b (Left side), the second energy storage spring fixing shaft 1024, the first end of the second energy storage spring 21 and the second pull plate 222, and the second end of the first pull plate 122 are located on the other side of the axis of symmetry. Figure 2b (Right side)

[0104] Preferably, the driven plates of the first linkage mechanism 12 and the second linkage mechanism 22 include two driven plates 1214 arranged at relative intervals. A pulling plate can rotate between the two driven plates 1214. The two driven plates 1214 are connected by a plurality of driven plate fixing shafts. The second end of the pulling plate of the first linkage mechanism 12 and the second linkage mechanism 22 extends between the two driven plates 1214. A connecting shaft passes through the two driven plates 1214 and the second end of the pulling plate, hinged to the driven plate and the pulling plate. Both the driven plate and the pulling plate can rotate around the connecting shaft. Preferably, a pulling plate limiting shaft 1215 is also provided between the two driven plates 1214 to limit the rotation angle of the pulling plate. The pulling plate limiting shaft 1215 is also a driven plate fixing shaft between the two driven plates 1214.

[0105] It should be noted that the actuating element 4, automatic operating mechanism, and main shaft locking mechanism 5 of this application are not only applicable to the energy storage mechanism of this embodiment, but also applicable to energy storage mechanisms of other structures, such as some energy storage mechanisms listed in the background art.

[0106] like Figure 1 , Figure 2a As shown, in this embodiment, the operating mechanism is arranged such that the bracket 102 includes a first side plate 103 and a second side plate 104. A first energy storage mechanism 1, a second energy storage mechanism 2, and a flipping component 3 are disposed between the first side plate 103 and the second side plate 104. The flipping component 3 is rotatably mounted on the main shaft 6. A first electromagnetic mechanism 7 and a second electromagnetic mechanism 8 are symmetrically arranged on both sides below the flipping component 3. The actuating component 4 is located above the flipping component 3. The operating mechanism of this embodiment includes an energy storage mechanism, a manual operating mechanism, and an automatic operating mechanism. The energy storage mechanism includes a first energy storage mechanism 1, a second energy storage mechanism 2, and a flipping component 3. The flipping component 3 drives the first energy storage mechanism 1 and the second energy storage mechanism 2 to store energy first, and then releases energy after passing the equilibrium position to drive the main shaft 6 to rotate. The flipping component 3 does not rotate with the main shaft 6 but is rotatably mounted on the main shaft 6, making the overall structure compact and facilitating the arrangement of the first electromagnetic mechanism 7, the second electromagnetic mechanism 8, and the actuating component 4.

[0107] The first side plate 103 and the second side plate 104 are connected by several fixed shafts, including a first energy storage spring fixing shaft 1023, a second energy storage spring fixing shaft 1024, a first limiting shaft 1021, a second limiting shaft 1022, and a toggle member mounting shaft 1026 for rotating the toggle member 4. One end of the energy storage spring of the first energy storage mechanism 1 or the second energy storage mechanism 2 is rotatably connected to the first energy storage spring fixing shaft 1023 and the second energy storage spring fixing shaft 1024, respectively. The toggle member 4 is rotatably mounted on the toggle member mounting shaft 1026, and its rotation angle is limited by the first limiting shaft 1021 and the second limiting shaft 1022. The first side plate 103 and the second side plate 104 are also provided with a main shaft hole through which the main shaft 6 passes, as well as a structure for mounting the main shaft locking mechanism and the toggle member limiting mechanism.

[0108] Preferably, the first driven plate 121 of the first linkage mechanism 12 and the second driven plate 221 of the second linkage mechanism 22 are mounted on the main shaft 6, and the flipping member 3 is located between the first driven plate 121 and the second driven plate 221; the actuating member 4 is rotatably disposed above the flipping member 3 and is also located between the first side plate 103 and the second side plate 104; the first electromagnetic mechanism 7 and the second electromagnetic mechanism 8 are symmetrically disposed on both sides below the flipping member 3.

[0109] The main shaft locking mechanism 5 is located on the outside of the second side plate 104. The first lever 51, the second lever 52, the first elastic member 53 and the baffle 54 on the main shaft 6 are located on the outside of the second side plate 104. The third actuating part 44 on the actuating member 4 extends from the second side plate sliding groove 1041 on the second side plate 104 to the space between the second end of the first lever 51 and the second end of the second lever 52.

[0110] like Figure 9 As shown, this is an embodiment of the flipper 3 described in this application. The flipper 3 has a circular hole in the middle area, which serves as the flipper mounting hole 33, allowing it to be rotatably mounted on the main shaft 6. Two hollowed-out arc-shaped grooves are respectively formed on the lower sides of the flipper 3, serving as the first arc groove 31 and the second arc groove 32. Multiple gear teeth are formed at the top of the flipper 3, creating a first linkage part 34 of a gear structure, which is used for linkage connection with the actuating member 4. Preferably, the flipper 3 in this embodiment includes two identical flip plates 30. Each flip plate 30 is provided with a flipper mounting hole 33, a first arc groove 31, a second arc groove 32, and a first linkage part 34. The two flip plates 30 are spaced apart and opposite to each other and connected by several fixed shafts.

[0111] like Figure 13As shown, this is one embodiment of the actuating component 4. The actuating component 4 includes an actuating component pivot part 40 with a rotating hole. The top of the actuating component pivot part 40 has a protruding actuating component driving part 45, and the bottom is a fan-shaped structure centered on the rotating hole. The arc side of the fan-shaped structure has a gear as a second linkage part 41 for cooperating with the flipping component 3. The two sides of the fan-shaped structure have arc-shaped limiting grooves 46 for cooperating with the first limiting shaft 1021 and the second limiting shaft 1022 on the bracket 102. The actuating component driving part 45 is a hole-like structure for driving by inserting a driving rod. When the actuating element 4 rotates, a third actuating part 44 protrudes from one side of the fan-shaped structure. The third actuating part 44 is located directly below the pivot part 40 of the actuating element and is used to drive and cooperate with the first lever 51 and the second lever 52 of the main shaft locking mechanism 5 to realize the locking function of the actuating element. The two sides of the fan-shaped structure are also provided with a first actuating part 42 and a second actuating part 43 respectively. The protrusion direction of the third actuating part 44, the first actuating part 42 and the second actuating part 43 is parallel to the rotation axis of the actuating element 4, and the third actuating part 44 is located between the first actuating part 42 and the second actuating part 43.

[0112] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used during use. They are only for ease of description and do not indicate that the device or component referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating relative importance.

[0113] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. An operating mechanism for a changeover switch, comprising an energy storage mechanism for driving a main shaft (6), the energy storage mechanism comprising a first energy storage mechanism (1), a second energy storage mechanism (2), and a flipping component (3), the flipping component (3) being capable of rotating to a first flipping component position, a middle flipping component position, and a second flipping component position; when the flipping component (3) rotates from the middle flipping component position to the first flipping component position, or from the first flipping component position to the middle flipping component position, the first energy storage mechanism (1) is driven to store energy first and release energy after passing the equilibrium position, driving the main shaft (6) to rotate to the corresponding main power supply closed position or double open position; when the flipping component (3) rotates from the middle flipping component position to the second flipping component position, or from the second flipping component position to the middle flipping component position, the second energy storage mechanism (2) is driven to store energy first and release energy after passing the equilibrium position, driving the main shaft (6) to rotate to the corresponding backup power supply closed position or double open position. Its features are: The operating mechanism also includes a spindle locking mechanism (5), which includes a first lever (51) and a second lever (52). The first lever (51) is provided with a first lever locking part (512), and the second lever (52) is provided with a second lever locking part (522). The spindle (6) is provided with a first locking part (541) and a second locking part (542). When the flipping component (3) moves to the first position of the flipping component, it avoids the first lever (51), so that the first elastic component (53) drives the first lever (51) to move the first lever locking part (512) towards the main shaft (6). When the main shaft (6) rotates to the main power supply closed position, the first locking part (541) of the main shaft (6) locks with the first lever locking part (512) so that the main shaft (6) cannot rotate to the double split position. When the flipping component (3) moves to the second position of the flipping component, it avoids the second lever (52), so that the second elastic component drives the second lever (52) to move the second lever locking part (522) towards the main shaft (6). When the main shaft (6) rotates to the backup power supply closed position, the second locking part (542) of the main shaft (6) locks with the second lever locking part (522) so that the main shaft (6) cannot rotate to the double split position. When the flipper (3) rotates from the first position to the middle position, the first lever (51) is driven to overcome the force of the first elastic element (53) and move the first lever locking part (512) away from the main shaft (6), thus releasing the locking engagement with the first locking part (541) of the main shaft (6); when the flipper (3) rotates from the second position to the middle position, the second lever (52) is driven to overcome the force of the second elastic element and move the second lever locking part (522) away from the main shaft (6), thus releasing the locking engagement with the second locking part (542) of the main shaft (6).

2. The operating mechanism of the changeover switch according to claim 1, characterized in that: The first elastic element (53) also serves as the second elastic element, that is, the first elastic element (53) and the second elastic element are the same elastic element, and the first elastic element (53) is connected between the first lever (51) and the second lever (52).

3. The operating mechanism of the changeover switch according to claim 1, characterized in that: The operating mechanism also includes a toggle (4). When the flipping member (3) rotates to the first position, the middle position, and the second position, the toggle (4) rotates to the first position, the middle position, and the second position respectively. The flipping member (3) cooperates with the first lever (51) and the second lever (52) through the toggle (4).

4. The operating mechanism of the changeover switch according to claim 1, characterized in that: A baffle (54) is also provided, which is fixedly mounted on the main shaft (6), and a first locking part (541) and a second locking part (542) are mounted on the baffle (54).

5. The operating mechanism of the changeover switch according to claim 4, characterized in that: The baffle (54) is integrally formed with the main shaft (6), or the baffle (54) is fitted onto the main shaft (6) through the baffle mounting hole (543) and rotates synchronously with the main shaft (6).

6. The operating mechanism of the changeover switch according to claim 5, characterized in that: The baffle (54) has a circular structure and an arc-shaped side (544). A locking groove is provided on the arc-shaped side (544), and the two side walls of the locking groove serve as the first locking part (541) and the second locking part (542), respectively.

7. The operating mechanism of the changeover switch according to claim 3, characterized in that: The first lever (51) and the second lever (52) are arranged side by side with intervals. The first end of the first lever (51) is rotatably arranged, and the second end is provided with a first lever groove (511). The first lever groove (511) is fitted on the first lever limiting shaft (513) to limit the rotation angle of the first lever (51). The first end of the second lever (52) is rotatably arranged, and the second end is provided with a second lever groove (521). The second lever groove (521) is fitted on the second lever limiting shaft (523) to limit the rotation angle of the second lever (52). The first elastic element (53) and the second elastic element are the same elastic element. The first elastic element (53) is connected between the second end of the first lever (51) and the second end of the second lever (52). The side of the first lever (51) provided with the first lever locking part (512) and the side of the second lever (52) provided with the second lever locking part (522) are arranged relatively with intervals and are located on both sides of the main shaft (6).

8. The operating mechanism of the changeover switch according to claim 7, characterized in that: The actuating member (4) is provided with a third actuating part (44) for driving the first lever (51) and the second lever (52), the third actuating part (44) being located between the second end of the first lever (51) and the second end of the second lever (52).

9. The operating mechanism of the changeover switch according to claim 8, characterized in that: The device includes a bracket (102), which includes a first side plate and a second side plate. A first energy storage mechanism (1), a second energy storage mechanism (2), a flipping component (3), and a toggle component (4) are disposed between the first side plate and the second side plate. A main shaft (6) passes through the middle of the first side plate and the second side plate. A first lever (51) and a second lever (52) are located on the outside of the second side plate. A third toggle part (44) on the toggle component (4) extends from the second side plate sliding groove (1041) on the second side plate to the second end of the first lever (51) and the second end of the second lever (52).

10. The operating mechanism of the changeover switch according to claim 7, characterized in that: The first lever (51) and the second lever (52) are provided with a first arc-shaped surface (551), a locking protrusion (552) and a second arc-shaped surface (553) on their opposite sides from the first end to the second end. The locking protrusion (552) on the first lever (51) and the second lever (52) serve as the first lever locking part (512) and the second lever locking part (522) respectively.

11. The operating mechanism of the changeover switch according to claim 10, characterized in that: The side of the locking protrusion (552) near the first arc surface (551) is arc-shaped and is part of the first arc surface (551). The side of the locking protrusion (552) near the second arc surface (553) is flat.

12. The operating mechanism of the changeover switch according to claim 10, characterized in that: The first lever (51) and the second lever (52) each have a second protrusion (554) at their second ends on opposite sides for engaging with the actuating member (4).

13. The operating mechanism of the changeover switch according to claim 8, characterized in that: When the actuating member (4) rotates from the middle position to the first position, the flipping member (3) rotates from the middle position to the first position and drives the first energy storage mechanism (1) to store energy. The third actuating part (44) of the actuating member (4) drives the second end of the second lever (52) to move the second lever locking part (522) away from the main shaft (6). The third actuating part (44) of the actuating member (4) avoids the second end of the first lever (51). Under the action of the first elastic member (53), the first lever (51) drives the first lever locking part (512) to move closer to the main shaft (6). Then, the flipping member (3) drives the first energy storage mechanism (1) to release energy after passing the balance position. Under the energy release drive of the first energy storage mechanism (1), the main shaft (6) rotates from the double-split position to the main power supply closed position. The first locking part (541) of the main shaft (6) locks correspondingly with the first lever locking part (512). When the actuating member (4) rotates from the first position to the middle position, the flipping member (3) also rotates from the first position to the middle position and drives the first energy storage mechanism (1) to store energy. The third actuating part (44) of the actuating member (4) drives the first lever (51) to overcome the force of the first elastic member (53) and drive the first lever locking part (512) to move away from the main shaft (6), so that the first lever locking part (512) leaves the first locking part (541) and releases the lock on the main shaft (6). After that, the flipping member (3) drives the first energy storage mechanism (1) to release energy after passing the balance position. The main shaft (6) rotates to the double split position under the energy release drive of the first energy storage mechanism (1). When the actuating member (4) rotates from the middle position to the second position, the flipping member (3) rotates from the middle position to the second position and drives the second energy storage mechanism (2) to store energy first. The third actuating part (44) of the actuating member (4) drives the second end of the first lever (51) to move the first lever locking part (512) away from the main shaft (6). The third actuating part (44) of the actuating member (4) avoids the second end of the second lever (52). Under the action of the first elastic member (53), the second lever (52) drives the second lever locking part (522) to move closer to the main shaft (6). Then, the flipping member (3) drives the second energy storage mechanism (2) to release energy after passing the balance position. The main shaft (6) is driven to rotate from the double split position to the backup power supply closing position after the energy is released by the second energy storage mechanism (2). The second locking part (542) of the main shaft (6) is locked to the second lever locking part (522). When the actuating member (4) rotates from the second position to the middle position, the flipping member (3) also rotates from the second position to the middle position and drives the second energy storage mechanism (2) to store energy. The third actuating part (44) of the actuating member (4) drives the second lever (52) to overcome the force of the first elastic member (53) and drive the second lever locking part (522) to move away from the main shaft (6), so that the second lever locking part (522) leaves the second locking part (542) and releases the lock on the main shaft (6). After that, the flipping member (3) drives the second energy storage mechanism (2) to release energy after passing the balance position. The main shaft (6) rotates to the double split position under the energy release drive of the second energy storage mechanism (2).

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