Operating mechanism and change-over switch

Abstract

The utility model provides an operating mechanism and a change-over switch, and relates to the technical field of electrical equipment, the operating mechanism comprises a support, an energy storage member, and an input member and an output member which are movably installed on the support, and the energy storage member is connected with the input member and the output member; the output piece is provided with at least three positions which are sequentially distributed along the movement path of the output piece; the output piece is provided with a stop part, and when the output piece is located at any one of the at least three positions, the stop part can be locked with the support; the input part is driven to move to drive the energy storage part to store energy; the input part is driven to continue to move so as to drive the stop part and the support to be unlocked, so that the energy storage part releases energy and drives the output part to be switched between any two adjacent positions in the at least three positions in the direction the same as the movement direction of the input part. The stop function of the output part is realized by the structure of the output part without additional stop parts, so that the structure is simplified, the number of parts is reduced, and the miniaturization design of the change-over switch is facilitated.

Description

Technical Field

[0001] This application relates to the field of power equipment technology, and more specifically, to an operating mechanism and a changeover switch. Background Technology

[0002] The main function of a transfer switch is to automatically switch between two power sources. When the primary power source fails, the transfer switch can quickly switch to the backup power source, ensuring uninterrupted power supply to the load. Due to this characteristic, transfer switches are widely used in power distribution networks with high requirements for power continuity, such as in industrial, medical, postal and telecommunications, petroleum, coal, metallurgical, rail transportation, computer centers, military facilities, airports, fire protection, and important civil buildings.

[0003] The switching process of a changeover switch is typically achieved by driving the movement of the moving contact through an operating mechanism. The operating mechanism mainly consists of an input component, an energy storage component, an output component, and a stop component. The stop component's function is to prevent the input component from directly driving the output component, ensuring that the energy storage component completes its energy storage process first, and then releases the energy to drive the output component.

[0004] However, in existing technologies, energy storage transmission devices typically employ two sets of energy storage components, with the stop component usually set as a separate part. While this design achieves basic functionality, it introduces the following problems: First, it increases the number of parts in the changeover switch, leading to higher manufacturing costs; second, it occupies more internal space, limiting the miniaturization of the product; and third, the increased structural complexity makes the assembly process more cumbersome, affecting production efficiency and potentially increasing the difficulty of quality control, which is detrimental to the production and application of the changeover switch. Utility Model Content

[0005] The purpose of this application is to provide an operating mechanism and a changeover switch to address the shortcomings of the prior art.

[0006] To achieve the above objectives, the technical solutions adopted in the embodiments of this application are as follows:

[0007] In one aspect of this application, an operating mechanism is provided, including a bracket, an energy storage component, and an input component and an output component movably mounted on the bracket, wherein the energy storage component is connected to the input component and the output component respectively;

[0008] The output component has at least three positions distributed sequentially along its movement path;

[0009] The output component has a stop portion that can lock with the bracket when the output component is in any of at least three positions.

[0010] The input component is driven to move, thereby driving the energy storage component to store energy;

[0011] The input component continues to move under drive to unlock the stop from the bracket, so that the energy storage component releases energy and drives the output component to switch between any two adjacent positions in at least three positions in the same direction as the input component.

[0012] Optionally, the bracket has at least three limiting parts that correspond one-to-one with at least three positions, and when the output member is in any of the at least three positions, the stop part can be locked with the corresponding limiting part.

[0013] Optionally, the stop portion has a first stop feature and a second stop feature that are opposite to and spaced apart, and the limiting portion can be clamped between the first stop feature and the second stop feature to lock with the stop portion.

[0014] Optionally, the input member is located between the bracket and the output member. The first stop feature has a first protrusion protruding towards the bracket, and the second stop feature has a second protrusion protruding towards the bracket. The limiting part is clamped between the first protrusion and the second protrusion. The input member is driven to move to abut against the first protrusion or the second protrusion to drive the first protrusion and the second protrusion to release the limiting part from clamping.

[0015] Optionally, the input component has at least a first unlocking part and a second unlocking part that are opposite to and spaced apart. The first unlocking part is driven to cooperate with the first stop feature to drive the stop part to unlock from the bracket, or the second unlocking part is driven to cooperate with the second stop feature to drive the stop part to unlock from the bracket.

[0016] Optionally, the end face of the first unlocking part is a first arc-shaped abutment surface, which abuts against the side of the first stop feature that is away from the second stop feature to drive the first stop feature to move in the direction away from the limiting part.

[0017] Optionally, the end face of the second unlocking part is a second arc-shaped abutment surface, which abuts against the side of the second stop feature away from the first stop feature to drive the second stop feature to move away from the limiting part.

[0018] Optionally, the energy storage device is a torsion spring, with one end of the torsion spring connected to the input device and the other end of the torsion spring connected to the output device.

[0019] Optionally, the distance between the first unlocking part and the second unlocking part along the movement path of the input part is greater than the distance between any two adjacent positions in at least three positions along the movement path of the output part.

[0020] Optionally, the input and output components are rotatably mounted on the bracket, with the rotation axis of the input component coinciding with the rotation axis of the output component.

[0021] In another aspect of the embodiments of this application, a changeover switch is provided, including a moving contact and an operating mechanism as described above. The output of the operating mechanism is connected to the moving contact to drive the moving contact to switch between a normal power-on position, a dual-position position, and a standby power-on position.

[0022] The beneficial effects of this application include:

[0023] This application provides an operating mechanism, including a bracket, an energy storage component, and an input component and an output component movably mounted on the bracket. The energy storage component is connected to the input component and the output component, respectively. The output component has at least three positions sequentially distributed along its movement path. The output component has a stop portion, which can lock with the bracket when the output component is in any of the at least three positions. The input component is driven to move to drive the energy storage component to store energy. The input component continues to move to drive the stop portion to unlock from the bracket, so that the energy storage component releases energy and drives the output component to switch between any two adjacent positions in the at least three positions in the same direction as the movement direction of the input component. The stopping function of the output component is achieved by its own structure, without the need for an additional stopping component. This design greatly simplifies the structure of the operating mechanism, reduces the number of parts, thereby reducing manufacturing costs and assembly difficulty. At the same time, the overall size of the operating mechanism is also effectively reduced, which is beneficial to the miniaturization design of the changeover switch. In addition, by providing at least three lockable positions on the output component, the working position of the moving contact connected to it can be flexibly adjusted. This design enhances the adaptability of the operating mechanism, allowing users to freely choose the dwell position of the output component according to actual usage needs, thereby achieving a wider range of functional expansions. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 An exploded view of an operating mechanism provided in an embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the structure of a support for an operating mechanism provided in an embodiment of this application;

[0027] Figure 3 This is a schematic diagram of the structure of an output component provided in an embodiment of this application;

[0028] Figure 4 This is a schematic diagram of the structure of an input device provided in an embodiment of this application;

[0029] Figure 5 This is a schematic diagram of a changeover switch provided in an embodiment of this application.

[0030] Icons: 10-Operating mechanism; 11-Bracket; 111-Limiting part; 12-Input part; 121-First unlocking part; 1211-First arc-shaped contact surface; 122-Second unlocking part; 1221-Second arc-shaped contact surface; 13-Energy storage part; 14-Output part; 141-Stop part; 1411-First stop feature; 14111-First protrusion; 1412-Second stop feature; 14121-Second protrusion; 20-Moving contact. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. It should be noted that, unless otherwise specified, the various features in the embodiments of this application can be combined with each other, and the combined embodiments are still within the protection scope of this application.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "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 when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] The main function of a changeover switch is to automatically switch between two power sources to ensure the continuity of power supply to the load. Therefore, it is widely used in fields with high requirements for power supply continuity. The switching process relies on an operating mechanism that drives the moving contacts. This mechanism includes an input component, an energy storage component, an output component, and a stop component. The stop component restricts direct movement, ensuring that energy storage is completed before driving the output component. In existing designs, the stop component is usually a separate part, leading to an increase in the number of parts, higher costs, increased space requirements affecting miniaturization, more complex structures, and greater assembly difficulty, thereby reducing production efficiency and quality control levels.

[0038] To address the aforementioned problems, one aspect of this application provides an operating mechanism 10, which can be applied to a changeover switch and is mainly used to drive the moving contact 20 to switch between different positions, thereby achieving reliable switching of multiple power sources. For example... Figure 1 As shown, the operating mechanism 10 includes a bracket 11, an energy storage component 13, and an input component 12 and an output component 14 movably mounted on the bracket 11. The energy storage component 13 is connected to the input component 12 and the output component 14 respectively. The output component 14 is linked with the moving contact 20 to realize the switching drive of the moving contact 20.

[0039] The output component 14 has at least three different positions distributed sequentially along its movement path, each position corresponding to a specific working state of the operating mechanism 10. To achieve stable positioning, the output component 14 is provided with a stop 141. When it is in any of the at least three positions, the stop 141 can lock with the bracket 11, thereby maintaining the stability of the output component 14, effectively preventing positional shifts or instability that may occur during switching, and improving the reliability and working accuracy of the operating mechanism 10.

[0040] When the input component 12 is driven to move by an external force, its action process can be divided into two stages. In the first stage, since the stop part 141 of the output component 14 is locked to the bracket 11, the output component 14 is in a fixed state and does not change position. The movement of the input component 12 will cause the energy storage component 13 connected between the input component 12 and the output component 14 to deform and store energy, and has the tendency to make the output component 14 move in the same direction as the movement direction of the input component 12.

[0041] In the second stage, as the input component 12 continues to move, it will cause the stop 141 of the output component 14 to unlock from the bracket 11. The unlocking action will trigger the energy storage component 13 to release the stored energy, pushing the output component 14 to switch between any two adjacent positions in at least three positions in the same direction as the movement of the input component 12.

[0042] For example, the output component 14 has a normally closed position, a double-open position, and a standby closed position distributed sequentially along its movement path. When the output component 14 needs to switch from the normally closed position to the double-open position, the input component 12 first moves to drive the energy storage component 13 to store energy, and then moves to drive the stop part 141 to unlock from the bracket 11, so that the energy storage component 13 releases energy and drives the output component 14 to switch from the normally closed position to the double-open position in the same direction as the movement direction of the input component 12. When the output component 14 needs to switch from the normally closed position to the standby closed position, the input component 12 needs to drive the energy storage component 13 to store energy twice and release energy twice. The first energy release drives the output component 14 to switch from the normally closed position to the double-open position, and the second energy release drives the output component 14 to switch from the double-open position to the standby closed position.

[0043] It is worth noting that the stop function of the output component 14 is achieved by its own structure, without the need for an additional stop part 141. This design can significantly simplify the structure of the operating mechanism 10, reduce the number of parts, and thus reduce manufacturing costs and assembly difficulty. At the same time, the overall size of the operating mechanism 10 is also effectively reduced, which is beneficial for the miniaturization design of the changeover switch.

[0044] Furthermore, by providing multiple lockable positions on the output component 14 to the bracket 11, the working position of the moving contact 20 can be flexibly adjusted. This design not only enhances the adaptability of the operating mechanism 10 but also meets the diverse needs of different application scenarios. For example, in changeover switches or other precision positioning devices, users can freely select the stopping position of the output component 14 according to actual usage requirements, thereby achieving a wider range of functional expansions.

[0045] In summary, by optimizing the structural design, the operating mechanism 10 integrates the stop function with the output component 14, which simplifies the internal structure, improves assembly and maintenance efficiency, and enables multi-position locking and flexible switching, thereby effectively enhancing its technical performance and application range.

[0046] Optionally, such as Figure 2 As shown, the bracket 11 serves as a support and positioning element in the operating mechanism 10, and its structural design is crucial to the performance of the operating mechanism 10. The bracket 11 is provided with at least three limiting parts 111, which correspond one-to-one with at least three positions on the movement path of the output component 14. The position and shape of each limiting part 111 are precisely designed to ensure that the output component 14 can reliably lock when it reaches the designated position, thereby achieving stable state maintenance. This distributed limiting design provides reliable support for the multi-position function of the operating mechanism 10.

[0047] When the output component 14 reaches any of the at least three positions, the stop 141 engages with the corresponding limiting portion 111 on the bracket 11 to lock it in place. Specifically, when the output component 14 moves to any of the at least three positions, the stop 141 engages tightly with the limiting portion 111 at that position, such as by snapping or clamping, to achieve physical restriction and fixation. This locking mechanism effectively prevents the output component 14 from shifting or deviating under unexpected external forces, ensuring the operational reliability of the operating mechanism 10.

[0048] Optionally, such as Figure 3 As shown, the design of the stop portion 141 directly affects the locking performance and operational stability of the operating mechanism 10. To further improve the reliability and applicability of the locking, the stop portion 141 can be configured to have a first stop feature 1411 and a second stop feature 1412 that are opposite to each other and spaced apart, forming a double-sided clamping structure. With this design, when the output member 14 moves to any of at least three positions, the limiting portion 111 on the bracket 11 can be clamped between the first stop feature 1411 and the second stop feature 1412, achieving a stable physical lock.

[0049] Specifically, the first stop feature 1411 and the second stop feature 1412 are arranged opposite to each other on the stop portion 141. The interval between them should be precisely calculated and designed to ensure that it can adapt to the size and shape of the limiting portion 111. When the output member 14 reaches any of the at least three positions, the limiting portion 111 naturally engages or enters the clamping area between the first stop feature 1411 and the second stop feature 1412 to limit the output member 14 and form a stable mechanical constraint. This dual-feature clamping design can effectively prevent locking instability or loosening problems that may be caused by single-point contact.

[0050] It should be understood that the design of the first stop feature 1411 and the second stop feature 1412 can be symmetrically or asymmetrically distributed, and the form of planar contact, point contact, or line contact can be selected as needed. In specific implementations, the stop features can be designed as protrusions or grooves, while the limiting part 111 is correspondingly designed as an embedding geometry to achieve an interlocking effect. In addition, to improve clamping performance, friction material or elastic elements can be added to the surfaces of the first stop feature 1411 and the second stop feature 1412 to further enhance the locking force.

[0051] It should be noted that, after being driven by the input member 12, the first stop feature 1411 or the second stop feature 1412 will deform and displace in the direction away from the limiting part 111 to release itself from the limiting part 111. After the clamping is released, the energy storage member 13 releases energy to drive the output member 14 to move. At this time, the first stop feature 1411 or the second stop feature 1412 is no longer driven by external force and will return to its initial state so that it can lock with the corresponding limiting part 111 when the output member 14 moves to the next of at least three positions.

[0052] Optionally, each limiting part 111 can be configured with two opposing and spaced-apart limiting features, which together form a clamping area. When the output member 14 moves to any of the at least three positions, its stop part 141 can be precisely clamped between the two limiting features corresponding to that position, thereby achieving reliable physical locking. The spacing design of the two limiting features needs to consider the size and motion characteristics of the stop part 141, ensuring that it provides sufficient support force while guaranteeing smooth switching of the output member 14 during locking.

[0053] Optionally, such as Figure 3 As shown, the structural design and motion relationship between the stop part 141, the input part 12, and the limiting part 111 directly affect the overall performance and reliability of the operating mechanism 10. To achieve precise locking and smooth unlocking, in this embodiment, the input part 12 is disposed between the bracket 11 and the output part 14, and a first stop feature 1411 is provided with a first protrusion 14111 protruding towards the bracket 11, and a second stop feature 1412 has a second protrusion 14121 protruding towards the bracket 11. The first protrusion 14111 and the second protrusion 14121 pass through the plane where the input part 12 is located to clamp the limiting part 111, thereby achieving stable positioning of the output part 14 and preventing loosening or displacement caused by external force or vibration.

[0054] When the input component 12 is not moving or is moving in the first stage, the limiting part 111 is always in a clamped state, thereby ensuring the locking reliability of the output component 14. When the input component 12 continues to move in the second stage and comes into contact with the side opposite to the first protrusion 14111 or the second protrusion 14121, it will push the first protrusion 14111 or the second protrusion 14121 to move away from the bracket 11, thereby releasing the first protrusion 14111 and the second protrusion 14121 from the limiting part 111 and completing the unlocking. This process utilizes the direct contact relationship between the input component 12 and the stop part 141 to enable the unlocking action to be completed quickly and reliably, providing conditions for the subsequent movement of the output component 14.

[0055] After unlocking, the energy storage component 13 begins to release the energy stored in the first stage of movement. The energy release of the energy storage component 13 directly drives the output component 14 to move in the same direction as the input component 12. At this time, the input component 12 remains stationary. Since it is located on the opposite side of the first protrusion 14111 or the second protrusion 14121, it applies a reverse abutment and limiting action to the first protrusion 14111 or the second protrusion 14121. This further ensures that the energy released by the energy storage component 13 can only drive the output component 14 to move in the direction away from the abutment side (that is, in the same direction as the input component 12), and cannot move in the direction closer to the abutment side (that is, in the opposite direction to the input component 12).

[0056] Overall, this unidirectional motion restriction design makes the energy release of the energy storage device 13 more concentrated and efficient, and ensures that the movement direction of the output device 14 is clear and does not deviate, avoiding malfunctions or positioning errors that may be caused by bidirectional motion.

[0057] Optionally, such as Figure 4 As shown, the input component 12 has at least a first unlocking part 121 and a second unlocking part 122 that are arranged opposite to each other and spaced apart. The cooperation of these two unlocking parts with the stop part 141 and the bracket 11 constitutes a key mechanism for unlocking and motion control. The first unlocking part 121 forms a driving cooperation with the first stop feature 1411. When the two come into contact, the stop part 141 can be driven to release its lock with the bracket 11, thereby releasing the motion constraint of the output component 14. Similarly, when the second unlocking part 122 cooperates with the second stop feature 1412, it can also achieve the same unlocking function. Through the design of the dual unlocking parts, the input component 12 can flexibly control the unlocking process of the output component 14 and provide a guarantee for subsequent movement.

[0058] In the initial position of the operating mechanism 10, neither the first unlocking part 121 nor the second unlocking part 122 of the input member 12 is in contact with the output member 14. At this time, the output member 14 is in a locked state, and the stop part 141 and the bracket 11 limit the engagement to ensure the stability and positional accuracy of the output member 14. Since it is not subject to unlocking driving force, the output member 14 will not move at all, thereby ensuring the reliability and safety of the operating mechanism 10 in a stationary state.

[0059] When the input component 12 moves to the point where the first unlocking part 121 abuts against the first stop feature 1411, the driving force of the input component 12 acts on the first stop feature 1411 through the first unlocking part 121, pushing the stop part 141 to release its lock from the bracket 11. At this time, the movement direction of the output component 14 will be opposite to that of the first unlocking part 121. Similarly, when the second unlocking part 122 abuts against the second stop feature 1412, the unlocking process is similar to the above, but the movement direction of the output component 14 is opposite to that of the second unlocking part 122. Through this relative direction control, the movement of the output component 14 can switch between different directions to adapt to the application requirements of the operating mechanism 10 and more working conditions, and can achieve precise control of the movement direction of the output component 14, so that the output component 14 always maintains unidirectional movement during a single switching process.

[0060] Optionally, such as Figure 4 As shown, the end face of the first unlocking part 121 is a first arc-shaped abutment surface 1211, which cooperates with the first protrusion 14111 of the first stop feature 1411. Specifically, the first protrusion 14111 of the first stop feature 1411 also forms an arc-shaped surface on the side opposite to the second protrusion 14121 of the second stop feature 1412, and the curvature of these two arc-shaped surfaces is the same. This design ensures that the first arc-shaped abutment surface 1211 and the arc-shaped surface of the first protrusion 14111 fit more tightly when in contact, improving unlocking efficiency.

[0061] When the input component 12 moves to the point where the first arc-shaped contact surface 1211 abuts against the first protrusion 14111 of the first stop feature 1411, the close contact between the two arc-shaped surfaces allows the input component 12 to apply driving force more smoothly and reduces operating resistance, thereby easily driving the first stop feature 1411 to move away from the limiting part 111. This makes it easier for the input component 12 to unlock the output component 14 and the bracket 11, and also reduces wear between parts and extends the service life of the operating mechanism 10.

[0062] Simultaneously, when the first arc-shaped contact surface 1211 of the first unlocking part 121 begins to contact the arc-shaped surface of the first protrusion 14111, the contact point gradually slides along the arc-shaped surface as the input member 12 moves. During the sliding process, the curvature of the arc-shaped surface naturally guides the first protrusion 14111 to move away from the bracket 11, thereby triggering the unlocking action between the stop part 141 and the bracket 11 more efficiently. This smooth mechanical transmission process can reduce unnecessary energy loss and improve the stability and reliability of the unlocking action.

[0063] Furthermore, the identical curvature design of the first arc-shaped contact surface 1211 and the arc-shaped surface of the first protrusion 14111 avoids jamming or sudden increases in resistance caused by geometric deviations, ensuring a smooth unlocking process. This matching is particularly crucial for improving unlocking efficiency, especially in applications where the operating mechanism 10 requires frequent movements, significantly reducing operator fatigue and equipment failure rates.

[0064] Optionally, the end face of the second unlocking part 122 is a second arc-shaped abutment surface 1221, which cooperates with the second protrusion 14121 of the second stop feature 1412. Specifically, the second protrusion 14121 of the second stop feature 1412 also forms an arc-shaped surface on the side opposite to the first protrusion 14111 of the first stop feature 1411, and the curvature of the two arc-shaped surfaces is the same. The second arc-shaped abutment surface 1221 abuts against the arc-shaped surface of the second protrusion 14121 to drive the second stop feature 1412 to move in the direction opposite to the limiting part 111, thereby unlocking the output member 14 from the bracket 11. The second arc-shaped abutment surface 1221 has the same beneficial effect as the first arc-shaped abutment surface 1211, which will not be described in detail here.

[0065] Optionally, the energy storage element 13 is a torsion spring, with one end connected to the input element 12 and the other end connected to the output element 14. The torsion spring provides elastic support while also being more stable, effectively resisting external disturbances and changes, which helps maintain the reliability of the operating mechanism 10. Moreover, it does not require additional deformation space, which is beneficial for the miniaturization design of the changeover switch.

[0066] Optionally, the distance between the first unlocking part 121 and the second unlocking part 122 along the movement path of the input member 12 is greater than the distance between any two adjacent positions in at least three positions along the movement path of the output member 14, so as to achieve motion decoupling between the input member 12 and the output member 14, so that the input member 12 will not cause the output member 14 to change position during the movement of the first stage, which helps the energy storage member 13 to store energy smoothly.

[0067] Specifically, in the first stage of the operating mechanism 10, the input component 12 is mainly responsible for driving the energy storage component 13 to complete deformation for energy storage, while the output component 14 needs to remain locked during this stage to ensure positional stability. To achieve this goal, the movement distance of the first unlocking part 121 and the second unlocking part 122 is designed to be greater than the movement distance between adjacent positions of the output component 14. This design ensures that when the input component 12 moves in the first stage, the unlocking part has not yet contacted the corresponding stop feature, thereby avoiding triggering the stop part 141. Therefore, the output component 14 is not affected by the driving force of the input component 12 and can remain locked until the energy storage component 13 completes energy storage, without interfering with the driving force of the input component 12 on the energy storage component 13. This decoupling design ensures that the energy storage component 13 can maintain a stable force state throughout the entire energy storage process, improving energy storage efficiency.

[0068] When the input component 12 completes the first stage of movement and enters the second stage, the unlocking part will contact the corresponding stop feature, triggering the unlocking action of the output component 14. Since the input component 12 has fully completed the energy storage task of the energy storage component 13 in the first stage, the energy storage component 13 can quickly release energy at the moment of unlocking, driving the output component 14 to switch precisely between adjacent positions. The reasonable design of the spacing between the unlocking parts not only ensures the independence of energy storage in the first stage, but also provides sufficient driving force reserves for unlocking and movement in the second stage, thereby achieving a smooth transition between the two stages of energy storage and unlocking.

[0069] Optionally, such as Figure 1 As shown, input component 12 and output component 14 are rotatably mounted on bracket 11, with the rotation axis of input component 12 coinciding with the rotation axis of output component 14. This design allows input component 12 and output component 14 to share the same axis, forming a compact structural layout and reducing the space occupied by the components. Furthermore, by sharing the axis, the transmission relationship between input component 12 and output component 14 can be achieved directly and smoothly, avoiding complex intermediate transmission mechanisms.

[0070] Specifically, designing the rotation axes of the input component 12 and the output component 14 to coincide ensures that the input component 12 can directly act on the energy storage component 13 when driven by external force, while its power can be transmitted to the output component 14 along the axis, reducing energy loss. The two ends of the energy storage component 13 are connected to the input component 12 and the output component 14 respectively, and the stress generated during its energy storage or release process is transmitted through the shared axis, making the overall operation of the operating mechanism 10 smoother and more reliable.

[0071] Furthermore, the coincident rotation axes make the relative motion between the input element 12 and the output element 14 more controllable. During the energy storage phase, the rotation of the input element 12 does not directly trigger the movement of the output element 14; while during the unlocking phase, the input element 12 acts on the stop feature through the unlocking part, causing the output element 14 to rotate along the same axis, completing the switching between adjacent positions. The entire process has a simple and clear drive path, avoiding energy loss and control errors that may be caused by complex motion paths.

[0072] Another aspect of the embodiments of this application provides a changeover switch, such as... Figure 5 As shown, the switch includes a moving contact 20 and an operating mechanism 10 as described above. The output 14 of the operating mechanism 10 is connected to the moving contact 20 to drive the moving contact 20 to switch between the normal power-on position, the dual-position position, and the standby power-on position. Since the changeover switch uses the operating mechanism 10 described above, it also has the same beneficial effects as the operating mechanism 10, which will not be described in detail here.

[0073] This application also provides a power distribution device, in which the aforementioned operating mechanism 10 and / or changeover switch are applied. The power distribution device can be used in smart scenarios, intelligent usage scenarios and the Internet of Things industry to achieve intelligent scenario-based management.

[0074] Optionally, the embodiments of this application can be used for: fire protection power supply: fire control room, fire pump, smoke control and exhaust system, fire elevator and its drainage pump, fire emergency lighting, etc. (Level 1); corridor lighting, duty lighting, guard lighting, obstacle marker lights; rail transit; security system power supply; electronic information computer room power supply; passenger elevator power supply; sewage pump; variable frequency speed regulation constant pressure water supply pump (otherwise it is a Level 2 load); main offices, conference rooms, general duty room, archives.

[0075] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An operating mechanism characterized by comprising: The device comprises a support (11), an energy storage member (13), an input member (12) and an output member (14) movably mounted on the support (11), the energy storage member (13) is connected with the input member (12) and the output member (14) respectively; The output member (14) has at least three positions distributed along its movement path in sequence; The output member (14) has a stop portion (141), when the output member (14) is located at any position of the at least three positions, the stop portion (141) can be locked with the support (11); The input member (12) is driven to move to drive the energy storage member (13) to store energy; The input member (12) is continuously driven to move to drive the stop portion (141) to be unlocked with the support (11), so that the energy storage member (13) releases energy and drives the output member (14) to switch between any two adjacent positions of the at least three positions in the same direction as the input member (12).

2. The operating mechanism according to claim 1, characterized in that The support (11) has at least three limiting portions (111) corresponding to the at least three positions respectively, when the output member (14) is located at any position of the at least three positions, the stop portion (141) can be locked with the corresponding limiting portion (111).

3. The operating mechanism according to claim 2, characterized in that The stop portion (141) has a first stop feature (1411) and a second stop feature (1412) oppositely and spacedly arranged, the limiting portion (111) can be clamped between the first stop feature (1411) and the second stop feature (1412) to be locked with the stop portion (141).

4. The operating mechanism according to claim 3, characterized in that The input member (12) is located between the support (11) and the output member (14), the first stop feature (1411) has a first protrusion (14111) protruding towards the support (11), the second stop feature (1412) has a second protrusion (14121) protruding towards the support (11), the limiting portion (111) is clamped between the first protrusion (14111) and the second protrusion (14121), the input member (12) is driven to move to abut with the first protrusion (14111) or the second protrusion (14121) to drive the first protrusion (14111) and the second protrusion (14121) to be disengaged from the limiting portion (111).

5. Operating mechanism according to claim 3 or 4, characterized in that The input member (12) has at least a first unlocking portion (121) and a second unlocking portion (122) oppositely and spacedly arranged, the first unlocking portion (121) is drivingly matched with the first stop feature (1411) to drive the stop portion (141) to be unlocked with the support (11), or the second unlocking portion (122) is drivingly matched with the second stop feature (1412) to drive the stop portion (141) to be unlocked with the support (11).

6. The operating mechanism of claim 5, wherein An end surface of the first unlocking portion (121) is a first arc-shaped abutting surface (1211) for abutting against a side of the first stop feature (1411) away from the second stop feature (1412) to drive the first stop feature (1411) to move in a direction away from the limiting portion (111); An end surface of the second unlocking portion (122) is a second arc-shaped abutting surface (1221) for abutting against a side of the second stop feature (1412) away from the first stop feature (1411) to drive the second stop feature (1412) to move in a direction away from the limiting portion (111).

7. The operating mechanism of claim 5, wherein The energy storage member (13) is a torsion spring, one end of the torsion spring is connected with the input member (12), and the other end of the torsion spring is connected with the output member (14).

8. The operating mechanism of claim 5, wherein The distance between the first unlocking portion (121) and the second unlocking portion (122) along the movement path of the input member (12) is greater than the distance between any two adjacent positions among the at least three positions along the movement path of the output member (14).

9. Operating mechanism according to any one of claims 1 to 4, characterized in that The input member (12) and the output member (14) are respectively rotatably installed on the support (11), and the rotation axis of the input member (12) coincides with the rotation axis of the output member (14).

10. A transfer switch, characterized in that The operating mechanism (10) according to any one of claims 1 to 9, wherein the output member (14) of the operating mechanism (10) is connected with a movable contact (20) to drive the movable contact (20) to switch between an ordinary power source on position, a double break position and a standby power source on position.

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