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 first elastic piece, a second elastic piece and a transmission assembly which are rotatably arranged on a rack, the first elastic piece is in driving fit with the second elastic piece through the transmission assembly, and the transmission assembly is in driving fit with a moving contact; the first elastic piece is provided with a first position, a second position and a third position which are sequentially distributed along a rotating path; the first elastic piece is driven to rotate from the first position to the second position and store energy, and the first elastic piece releases energy after crossing the second position so as to rotate from the second position to the third position; in the process that the first elastic piece rotates from the second position to the third position, the first elastic piece drives the transmission assembly to rotate and drives the second elastic piece to store energy first and then release energy. In the energy releasing process of the second elastic piece, the second elastic piece drives the transmission assembly to continuously rotate, speed reduction in the switching process can be achieved, reliable switching of the moving contact can be guaranteed, and therefore the stability and safety of the circuit are guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power equipment, in particular to an operating mechanism and a transfer switch. BACKGROUND

[0002] The main function of the transfer switch is to realize automatic switching of two power supplies. When the normal power supply fails, the transfer switch can quickly switch to the standby power supply to ensure uninterrupted power supply at the load end. Due to this feature, the transfer switch is widely used in power distribution networks with high requirements for power continuity, such as industry, medicine, post and telecommunications, petroleum, coal, metallurgy, rail transit, computer center, military facilities, airport, fire fighting and important civil buildings.

[0003] In the prior art, the switching time of the transfer switch between the normal power supply and the standby power supply is usually only about 7-8 milliseconds. This rapid switching process may cause the risk of short circuit between the normal power supply and the standby power supply. To solve this problem, some transfer switches are designed to slow down the operation mechanism to extend the switching time to more than 20 milliseconds to reduce the possibility of short circuit between the normal power supply and the standby power supply. This delayed switching method increases the isolation time between the power supplies to some extent and reduces the risk of short circuit. However, the deceleration design reduces the closing force of the transfer switch to some extent, resulting in a decrease in the reliability of the switch during closing, which increases the risk of equipment operation. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to solve the above problems in the prior art and provides an operating mechanism and a transfer switch.

[0005] To achieve the above-mentioned purpose, the technical solutions adopted by the embodiments of the present application are as follows:

[0006] In one aspect of the embodiments of the present application, an operating mechanism is provided, which comprises a first elastic member, a second elastic member and a transmission assembly rotatably arranged on a rack respectively, and the first elastic member is drivingly connected with the second elastic member through the transmission assembly;

[0007] The first elastic member has a first position, a second position and a third position distributed along its rotation path in sequence;

[0008] The first elastic member is driven to rotate from the first position to the second position and store energy, and the first elastic member releases energy to rotate from the second position to the third position after passing the second position;

[0009] In the process of rotating the first elastic member from the second position to the third position, the first elastic member drives the transmission assembly to rotate and drives the second elastic member to store energy first and then release energy;

[0010] In the releasing process of the second elastic member, the second elastic member drives the transmission assembly to continue rotating.

[0011] Optionally, the transmission assembly comprises a driving gear and a driven gear which are engaged with each other, the first elastic member is in driving cooperation with the driving gear, and the driven gear is in driving cooperation with the second elastic member.

[0012] Optionally, a first driving groove is formed in the driving gear, the driving end of the first elastic member is movably connected to the first driving groove, and in the process that the first elastic member rotates from the first position to the second position, the driving end of the first elastic member moves from one end of the first driving groove to the other end of the first driving groove.

[0013] Optionally, the first driving groove is an arc-shaped groove, and the radius of the arc-shaped groove is the same as the rotation radius of the first elastic member.

[0014] Optionally, the operating mechanism further comprises a first rod rotatably arranged on the frame, a second driving groove is formed in the driving gear, the connecting end of the first rod is hingedly connected to the first elastic member, and the driving end of the first rod is movably connected to the second driving groove.

[0015] In the process that the first elastic member rotates from the first position to the second position, the driving end of the first rod is driven by the first elastic member to move from one end of the second driving groove to the other end of the second driving groove.

[0016] Optionally, the driven gear has a groove, the groove has opposite first and second side walls, and the driving end of the second elastic member is located between the first and second side walls.

[0017] In the process that the first elastic member rotates from the second position to the third position, the first elastic member drives the driven gear to rotate through the driving gear, so that after the second side wall contacts the driving end of the second elastic member, the second elastic member is driven to store energy through the second side wall, and after the second elastic member passes the neutral point position, the second elastic member is released and rotates to the position where the driving end of the second elastic member contacts the first side wall, so as to drive the driven gear to continue rotating through the first side wall.

[0018] Optionally, the operating mechanism further comprises a second rod rotatably arranged on the frame, the connecting end of the second rod is hingedly connected to the second elastic member, and the driving end of the second rod is in driving cooperation with the driven gear.

[0019] Optionally, the operating mechanism further comprises an output gear, and the driven gear is in driving cooperation with the movable contact through the output gear.

[0020] Optionally, the operating mechanism further comprises an adapter gear engaged with the output gear, and the driven gear is in driving cooperation with the output gear through the adapter gear.

[0021] Optionally, the rotation axis of the output gear coincides with the rotation axis of the driving gear.

[0022] Another aspect of the embodiments of the present application provides a transfer switch, comprising a frame, a first static contact, a second static contact, a moving contact and an operating mechanism of any one of the above, which is mounted on the frame and used to drive the moving contact to switch between the first static contact and the second static contact.

[0023] The beneficial effects of the present application include:

[0024] The present application provides an operating mechanism and a transfer switch, comprising a first elastic member, a second elastic member and a transmission assembly which are rotatably arranged on a frame, the first elastic member is driven in cooperation with the second elastic member through the transmission assembly, and the transmission assembly is driven in cooperation with the moving contact; the first elastic member has a first position, a second position and a third position which are sequentially distributed along the rotation path of the first elastic member; the first elastic member is driven to rotate from the first position to the second position and store energy, and the first elastic member releases energy to rotate from the second position to the third position after passing the second position; in the process of the first elastic member rotating from the second position to the third position, the first elastic member drives the transmission assembly to rotate and drives the second elastic member to store energy first and then release energy; in the process of the second elastic member releasing energy, the second elastic member drives the transmission assembly to continue rotating. The operating mechanism realizes deceleration in the process of the second elastic member storing energy driven by the first elastic member. The deceleration function effectively prolongs the switching time of the two power supplies, thereby reducing the risk of short circuit during switching. In addition, when the second elastic member drives the transmission assembly to rotate by releasing energy, it can ensure that the moving contact can reliably close when switching from one power supply to another, thereby ensuring the stability and safety of the circuit. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0026] Figure 1 One of the structure schematic diagrams of the operating mechanism provided by the embodiments of the present application;

[0027] Figure 2 Another of the structure schematic diagrams of the operating mechanism provided by the embodiments of the present application;

[0028] Figure 3 Another of the structure schematic diagrams of the operating mechanism provided by the embodiments of the present application;

[0029] Figure 4 Another of the structure schematic diagrams of the operating mechanism provided by the embodiments of the present application;

[0030] Figure 5Fifth schematic diagram of an operating mechanism provided in the embodiments of this application;

[0031] Figure 6 A schematic diagram of the structure of an operating mechanism provided in this application is shown in Figure 6.

[0032] Figure 7 A schematic diagram of the structure of an operating mechanism provided in this application embodiment is shown in Figure 7.

[0033] Figure 8 This is a schematic diagram of a changeover switch provided in an embodiment of this application.

[0034] Icons: 11-First elastic element; 12-Second elastic element; 131-Driving gear; 131a-Second driving groove; 132-Driven gear; 132a-Groove; 1321-First sidewall; 1322-Second sidewall; 14-First rod; 15-Second rod; 16-Output gear; 17-Transfer gear; 18-Partition plate; 20-Frame; 30-Moving contact. Detailed Implementation

[0035] 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.

[0036] 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.

[0037] 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.

[0038] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0039] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0040] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] The transfer switch is used to automatically switch to the standby power supply when the normal power supply fails, to ensure the continuity of load power supply, and is widely used in fields with high requirements for power supply reliability. In the prior art, the switching time of the transfer switch is usually 7-8 milliseconds, but fast switching may cause a short circuit risk. Although some transfer switches can extend the switching time to more than 20 milliseconds by decelerating the operating mechanism to reduce the short circuit risk, this design reduces the closing force, resulting in a decrease in the closing reliability of the switch and a hidden danger of unstable operation.

[0042] To solve the above problems, an aspect of an embodiment of the present application provides an operating mechanism which can be applied to a transfer switch and is mainly used to drive the moving contact 30 to switch between the first static contact and the second static contact, to realize reliable switching of two power supplies. As shown in the figure, the operating mechanism includes a first elastic member 11, a second elastic member 12 and a transmission assembly mounted on the rack 20. The first elastic member 11 forms a driving cooperation relationship with the second elastic member 12 through the transmission assembly, and the transmission assembly is also linked with the moving contact 30 to realize switching drive. Figures 1 to 6

[0043] ​Specifically, the first elastic element 11 passes through three key positions sequentially along its rotation path: the first position, the second position, and the third position. During power switching, for example, when switching the moving contact 30 from closing with the first stationary contact to closing with the second stationary contact, as... Figure 1 As shown, the first elastic element 11 is located in the first position. When the first elastic element 11 is driven by a driving force, it rotates from the first position to the second position, storing energy in this process. Figure 2 As shown, when the first elastic element 11 is in the second position, it is at the point of maximum deformation. Figures 3 to 6 As shown, after the first elastic element 11 passes the second position, it releases the stored energy, allowing it to continue rotating to the third position. During this process, the first elastic element 11 drives the transmission assembly to rotate, and the rotation of the transmission assembly drives the second elastic element 12 to store energy, forming a step-by-step energy transfer. When the second elastic element 12 passes its neutral point (that is, the point where the deformation of the second elastic element 12 is the maximum), the stored energy is released, further driving the transmission assembly to continue rotating in the same direction, causing the moving contact 30 to switch to close with the second stationary contact, thus achieving a smooth transition between the two power supplies.

[0044] Through this design, the energy storage process of the first elastic element 11 driving the second elastic element 12 can slow down the switching operation, extending the switching time between the two power supplies to 21-23 milliseconds. This delay reduces the risk of short circuits during switching, ensuring the stability and safety of the entire power conversion process. Furthermore, when the second elastic element 12 releases energy to rotate the transmission assembly, it can reliably close the moving contact 30 when switching from one power supply to another, thus ensuring a stable circuit connection after switching.

[0045] Overall, this operating mechanism, through the linkage of energy storage and release of the first elastic element 11 and the second elastic element 12, can achieve reasonable switching deceleration when switching power supplies and effectively improve the closing reliability during the switching process, thus meeting the high requirements of safety and stability of the transfer switch in different application scenarios.

[0046] Optionally, such as Figures 1 to 6 As shown, the transmission assembly includes a driving gear 131 and a driven gear 132, which are meshed together to form a power transmission relationship. A first elastic element 11 drives the driving gear 131 to rotate, transferring initial mechanical energy to the transmission assembly. Correspondingly, the driven gear 132 drives the second elastic element 12. When the first elastic element 11 drives the driving gear 131 to rotate, the driving gear 131 drives the driven gear 132 to rotate, thus gradually transferring energy to the second elastic element 12. This gear meshing design enables energy transfer and coordination among multiple elastic elements within the operating mechanism, providing a stable power transmission channel for reliable switching of the changeover switch.

[0047] It should be noted that in addition to the gear mesh structure, the transmission assembly can also use other alternative solutions to adapt to different application requirements. For example, the transmission assembly can use a connecting rod mechanism instead of a gear system to achieve energy transmission and distribution through the swinging of the connecting rod. This design can reduce friction and wear problems and is suitable for scenarios with high requirements for component life and durability. In addition, a belt or chain transmission method can also be used to transmit energy from the first elastic member 11 to the second elastic member 12, which helps to reduce noise during operation and can adapt to more complex installation space requirements. By selecting different transmission structures according to specific requirements, the operating mechanism can further optimize the switching performance, improve the durability and reliability of the system, and thus achieve higher application flexibility and technical adaptability.

[0048] Optionally, a first driving groove is formed on the driving gear 131 for guiding the movement of the driving end of the first elastic member 11. The connecting end of the first elastic member 11 is hingedly connected to the rack 20, forming a movement fulcrum. The driving end of the first elastic member 11 is movably connected in the first driving groove, so that the first elastic member 11 can move along the path of the driving groove under control during operation. During the process of the first elastic member 11 rotating from the first position to the second position, the driving end of the first elastic member 11 moves from one end of the first driving groove to the other end of the first driving groove, while the transmission assembly remains stationary at this time, thereby avoiding premature driving of the transmission assembly.

[0049] Among them, the first elastic member 11 can adopt the form of a compression spring to achieve energy storage and release during switching. When the compression spring is in the first position, it is not subjected to external force and is therefore in a natural state without any deformation. When the compression spring moves from the first position to the second position, the driving end of the compression spring is gradually subjected to the restraining action of the first driving groove and begins to compress gradually, so that the elastic energy in the compression spring increases continuously, thereby achieving an effective energy storage process. After the compression spring completes the movement from the first position to the second position and reaches the maximum energy storage state, when it releases energy, it can drive the transmission assembly to complete the next operation.

[0050] Therefore, by limiting the movement path of the first elastic member 11, it can not only achieve energy storage but also avoid unnecessary movement of the transmission assembly, thereby ensuring the efficiency and stability of the operating mechanism and providing a reliable power source and stable energy output for subsequent switching operations.

[0051] Optionally, the first driving groove is an arc-shaped groove, and the radius of the arc-shaped groove is the same as the radius of rotation of the first elastic member 11 to ensure that the first elastic member 11 moves along a stable and limited path during movement, avoiding unnecessary deviation or instability.

[0052] In addition, the arc-shaped slot protrudes towards the side close to the first elastic member 11, which is designed to provide the required space and support for the compression movement of the first elastic member 11. Through the design of the arc-shaped slot, the first elastic member 11 is properly limited and guided during the movement along the arc-shaped slot, so that it can be gradually compressed. In this way, the first elastic member 11 can deform on a controlled path and store elastic energy, preparing power reserves for subsequent operations.

[0053] Optionally, the operating mechanism further comprises a first lever 14 rotatably arranged on the frame 20, and the rotation center of the first lever 14 coincides with the rotation center of the driving gear 131, so as to ensure the compactness of the system structure and the consistency of the movement. A second driving slot 131a is formed on the driving gear 131, and the connecting end of the first lever 14 is hinged to the first elastic member 11. The second driving slot 131a can be an arc-shaped slot, which is located on the rotation path of the first lever 14 and has the same arc as the rotation arc of the first lever 14, so as to provide appropriate path guidance for the first lever 14 during movement. The connecting end of the first elastic member 11 is hinged to the frame 20, forming a movement fulcrum, while the connecting end of the first lever 14 is hinged to the driving end of the first elastic member 11, so that the two can form a linkage relationship during movement. At the same time, the driving end of the first lever 14 is movably connected in the second driving slot 131a.

[0054] Specifically, as shown in Figure 1 and Figure 2 When the first elastic member 11 is in the initial first position, the driving end of the first lever 14 is located at one end of the second driving slot 131a, ready to start the force movement. During the gradual rotation of the first elastic member 11 from the first position to the second position, it drives the driving end of the first lever 14 to slide along the second driving slot 131a until it moves to the other end of the second driving slot 131a. In this process, the first lever 14 gradually exerts pressure on the first elastic member 11, so that it stores energy under pressure, providing a power source for subsequent driving.

[0055] In addition, in order to further ensure the stability of the movement path of the first elastic member 11, an arc-shaped slot with the same rotation arc as the first elastic member 11 can be formed on the frame 20 to limit the rotation trajectory of the first elastic member 11. The arc-shaped slot precisely guides the movement direction of the first elastic member 11, so that it can maintain a stable path during the entire operation process, thereby effectively avoiding unnecessary deviation or shaking.

[0056] Optionally, the driven gear 132 has a groove 132a with opposite first and second side walls 1321 and 1322 to effectively control the driving of the second elastic member 12. The connecting end of the second elastic member 12 is hingedly connected to the frame 20, the driving end of the second elastic member 12 is located between the first and second side walls 1321 and 1322, and the driving end of the second elastic member 12 is arranged close to the first side wall 1321. When the first elastic member 11 rotates from the second position to the third position, the driving of the entire switching process is driven by rotating the driven gear 132 through the driving gear 131.

[0057] As shown in Figure 3 , before the second side wall 1322 contacts the driving end of the second elastic member 12, there is no contact point between the driven gear 132 and the second elastic member 12, and the rotation of the driven gear 132 will not cause any displacement or deformation of the second elastic member 12, so an idle stroke can be formed. This design will not affect the initial speed of the opening, ensure the breaking performance of the contact structure, and further slow down the switching speed, thereby effectively prolonging the switching time during the rotation of the first elastic member 11 and reducing the risk of short circuit during power switching.

[0058] As shown in Figure 4 , when the driven gear 132 continues to rotate to the second side wall 1322 contacting the driving end of the second elastic member 12, the driven gear 132 starts to apply force through the second side wall 1322, driving the driving end of the second elastic member 12 to rotate around its connecting end and enter the energy storage state. At this stage, the second elastic member 12 is subjected to an acting force, gradually accumulating elastic energy to provide power reserves for subsequent operations.

[0059] As shown in Figure 5 , when the second elastic member 12 passes the neutral point position, the stored energy will be released. During this process, the second elastic member 12 first rotates an idle stroke to switch from contacting the second side wall 1322 to contacting the first side wall 1321, and then reacts on the driven gear 132 through the first side wall 1321 to make the driven gear 132 continue to rotate in the same direction quickly, ensuring that the moving contact 30 smoothly completes the switching. During this process, the first elastic member 11 also continues to release energy, and the two together drive the transmission assembly in the same direction, further enhancing the stability and reliability of the entire switching process. As shown in Figure 6 , after the moving contact 30 is completely switched to the target position, the first and second elastic members 11 and 12 complete the energy release. To further ensure the stability of the movement path of the second elastic member 12, an arc-shaped groove with the same rotation arc as the second elastic member 12 can be formed on the frame 20 to limit the rotation trajectory of the second elastic member 12. In addition, the second elastic member 12 can also be a compression spring which is deformed to store energy during rotation.

[0060] Overall, through the coordinated cooperation of the first elastic member 11 and the second elastic member 12, combined with the ingenious design of the transmission assembly, not only can the speed and stability of the switching operation be improved, but also the switching time can be further slowed down, thereby providing strong protection for the safe switching of the circuit.

[0061] Optionally, the operating mechanism further comprises a second lever 15 rotatably arranged on the rack 20, and the rotation center of the second lever 15 coincides with the rotation center of the driven gear 132. The driven gear 132 and the second elastic member 12 are drivingly matched through the second lever 15. The connecting end of the second elastic member 12 is fixed on the rack 20 by a hinged manner, and the driving end of the second elastic member 12 is hinged with the connecting end of the second lever 15. The driving end of the second lever 15 is located between the first side wall 1321 and the second side wall 1322, and is arranged close to the first side wall 1321.

[0062] As shown in Figures 2 to 6 When the first elastic member 11 rotates from the second position to the third position, the driven gear 132 is driven to rotate by the driving gear 131. When the second side wall 1322 of the driven gear 132 contacts the driving end of the second lever 15, the second side wall 1322 further pushes the second lever 15 to rotate, forming a stable power transmission relationship between the driven gear 132 and the second lever 15. This power transmission gradually compresses the second elastic member 12 through the second lever 15, so that the second elastic member 12 gradually stores energy during the rotation. When the second elastic member 12 is compressed to the maximum deformation position and passes through the neutral point position, the stored energy is released, thereby driving the second lever 15 to continue rotating in the same direction. This energy release process further drives the continuous rotation of the driven gear 132, and finally transmits to the movable contact 30, realizing the stable driving switching of the movable contact 30.

[0063] Optionally, the operating mechanism further comprises an output gear 16 for transmitting the movement of the driven gear 132 to the movable contact 30 to realize the switching action of the movable contact 30. Specifically, the driven gear 132 and the output gear 16 are drivingly matched, and the output gear 16 and the movable contact 30 are drivingly matched, so that the rotation of the driven gear 132 can directly drive the output gear 16, thereby further controlling the movement of the movable contact 30.

[0064] To further optimize the safety and structural stability of the system, a partition plate 18 is designed between the driven gear 132 and the output gear 16 to separate the moving contact 30 and the operating mechanism in different spaces, effectively avoiding the interference of the complex structure of the operating mechanism on the moving contact 30, and reducing the possibility of foreign matter entering the working area of the moving contact 30. Through the physical isolation of the partition plate 18, the working environment of the moving contact 30 is independent and cleaner, reducing the risk of poor contact, short circuit or misoperation caused by environmental factors or mechanism interference. In addition, the arrangement of the partition plate 18 can also improve the internal structural layout of the switch, so that each component can work more orderly in its own independent space.

[0065] Optionally, as shown in Figure 7 the operating mechanism further includes an adapter gear 17 engaged with the output gear 16, and the driven gear 132 is coaxially fixedly connected with the adapter gear 17 to form a driving cooperation relationship with the output gear 16, so that the rotation of the driven gear 132 can be smoothly transmitted to the adapter gear 17, thereby driving the output gear 16 to rotate. The output gear 16 is coaxially fixedly connected with the moving contact 30, so that the moving contact 30 can realize synchronous rotation under the driving of the output gear 16, ensuring the response speed and stability of the moving contact 30 during switching.

[0066] In addition, the linkage design of the adapter gear 17 and the output gear 16 can also adjust the position of the moving contact 30, so that it is located at the middle position of the entire switch. This design not only improves the movement flexibility of the moving contact 30, but also ensures that the moving contact 30 always maintains a stable neutral position during power switching, which helps to reduce the offset of the moving contact 30 and improve the operation reliability of the entire switch.

[0067] Optionally, the rotation axis of the output gear 16 coincides with the rotation axis of the driving gear 131, and such axis alignment can further optimize the internal layout of the switch. The coincident axis layout not only saves internal space, but also makes the power transmission path more simple, thereby reducing the energy loss and error accumulation that may occur during transmission.

[0068] In another aspect of the embodiments of the present application, a switch is provided, as shown in Figure 8 the switch includes a rack 20, a first stationary contact, a second stationary contact, a moving contact 30 and the operating mechanism of any of the above, and the operating mechanism is used to drive the moving contact 30 to switch between the first stationary contact and the second stationary contact. Since the switch uses the above-mentioned operating mechanism, it also has the same beneficial effects as the operating mechanism, which will not be described here.

[0069] The application further provides a power distribution device, wherein the operation mechanism and / or the transfer switch are applied to the power distribution device, and the power distribution device can be applied to an intelligent scene, applied to an intelligent use scene and an Internet of Things industry, so as to realize intelligent scene management.

[0070] Optionally, the application can be applied to: fire-fighting power supply: fire control room, fire pump, smoke control and exhaust facilities, fire elevator and its drainage pump, fire emergency lighting and other first-level power supply; walkway lighting, duty lighting, security lighting, obstacle marker light; rail transit; security system power supply; electronic information machine room power supply; passenger elevator power supply; sewage pump; variable frequency speed regulation constant pressure water supply living pump (otherwise, secondary load); main office, conference room, general duty room, archive room.

[0071] The above merely describes the preferred embodiments of the application, and is not intended to limit the application. Various modifications and changes can be made by those skilled in the art based on the principles and technical solutions of the application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the application shall fall within the protection scope of the application.

Claims

1. An operating mechanism characterized by comprising: The operation mechanism comprises a first elastic member (11), a second elastic member (12) and a transmission assembly which are rotatably arranged on a frame (20), the first elastic member (11) is drivingly connected with the second elastic member (12) through the transmission assembly; The first elastic member (11) has a first position, a second position and a third position which are arranged along the rotation path of the first elastic member (11) in sequence; The first elastic member (11) is driven to rotate from the first position to the second position and store energy, and then releases the stored energy to rotate from the second position to the third position when the first elastic member (11) passes the second position; During the rotation of the first elastic member (11) from the second position to the third position, the first elastic member (11) drives the transmission assembly to rotate and drives the second elastic member (12) to store energy and then release the stored energy; During the release of the stored energy of the second elastic member (12), the second elastic member (12) drives the transmission assembly to continue to rotate.

2. The operating mechanism according to claim 1, characterized in that The transmission assembly comprises a driving gear (131) and a driven gear (132) which are meshed with each other, the first elastic member (11) is drivingly connected with the driving gear (131), and the driven gear (132) is drivingly connected with the second elastic member (12).

3. The operating mechanism according to claim 2, characterized in that A first driving groove is formed in the driving gear (131), a driving end of the first elastic member (11) is movably connected with the first driving groove, and during the rotation of the first elastic member (11) from the first position to the second position, the driving end of the first elastic member (11) moves from one end of the first driving groove to the other end of the first driving groove.

4. The operating mechanism of claim 2, wherein The operation mechanism further comprises a first lever (14) which is rotatably arranged on the frame (20), a second driving groove (131a) is formed in the driving gear (131), a connecting end of the first lever (14) is hingedly connected with the first elastic member (11), and a driving end of the first lever (14) is movably connected with the second driving groove (131a); During the rotation of the first elastic member (11) from the first position to the second position, the driving end of the first lever (14) moves from one end of the second driving groove (131a) to the other end of the second driving groove (131a) driven by the first elastic member (11).

5. Operating mechanism according to any one of claims 2 to 4, characterized in that The driven gear (132) has a groove (132a) which has a first side wall (1321) and a second side wall (1322) which are opposite to each other, and a driving end of the second elastic member (12) is located between the first side wall (1321) and the second side wall (1322); In the process that the first elastic member (11) rotates from the second position to the third position, the first elastic member (11) drives the driven gear (132) to rotate through the driving gear (131), so that the second side wall (1322) contacts the driving end of the second elastic member (12), the second elastic member (12) is driven by the second side wall (1322) to store energy, and the second elastic member (12) releases energy and rotates to the position where the driving end of the second elastic member (12) contacts the first side wall (1321), so that the driven gear (132) is continuously driven to rotate through the first side wall (1321).

6. Operating mechanism according to any one of claims 2 to 4, characterized in that The operating mechanism further comprises a second lever (15) rotatably arranged on the frame (20), a connecting end of the second lever (15) is hingedly connected with the second elastic member (12), and a driving end of the second lever (15) is drivingly matched with the driven gear (132).

7. Operating mechanism according to any one of claims 2 to 4, characterized in that The operating mechanism further comprises an output gear (16), and the driven gear (132) is drivingly matched with the movable contact (30) through the output gear (16).

8. The operating mechanism of claim 7, wherein The operating mechanism further comprises a transfer gear (17) engaged with the output gear (16), and the driven gear (132) is drivingly matched with the output gear (16) through the transfer gear (17).

9. The operating mechanism of claim 7, wherein The rotation axis of the output gear (16) coincides with the rotation axis of the driving gear (131).

10. A transfer switch, characterized in that The operating mechanism is used for driving the movable contact (30) to switch between the first fixed contact and the second fixed contact.

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