An operating mechanism and disconnector

Abstract

The application discloses an operating mechanism and an isolating switch, and relates to the technical field of electrical equipment. The operating mechanism comprises a rotating shaft and a driving mechanism. The driving mechanism comprises a cam disc and a pawl. The rotating shaft is connected with a movable contact of a switch unit through the cam disc. The pawl is used for abutting against the cam disc. The rotating shaft is driven to rotate to drive the driving mechanism to store energy. When the pawl and the cam disc are disengaged, the driving mechanism releases the energy to drive the movable contact to rotate, so that the switch unit realizes opening and closing. The rotating centers of the rotating shaft, the driving mechanism and the movable contact are coaxially arranged. The operating mechanism and the isolating switch can reduce the space occupation of the mechanism, thereby significantly reducing the product size, saving labor for tripping operation, and improving the stability of the product.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, and more specifically, to an operating mechanism and a disconnecting switch. Background Technology

[0002] Switchgear plays two roles in a power system: first, a control role, which involves putting a portion of the power equipment or lines into or out of operation according to the needs of the power system; and second, a protection role, which involves quickly disconnecting the faulty part from the power system when a fault occurs in the power equipment or line, ensuring the normal operation of the fault-free part of the power system.

[0003] A disconnecting switch is a switching device mainly used for isolating power sources, performing switching operations, and connecting and disconnecting circuits. In the prior art, the operating mechanism of rotary disconnecting switches mostly adopts a tension and compression spring design, which results in high internal friction and requires more space, leading to increased closing and opening torque and a corresponding increase in the size of the mechanism module. Summary of the Invention

[0004] The purpose of this invention is to provide an operating mechanism and disconnecting switch that can reduce the space occupied by the mechanism, thereby significantly reducing the product size, making the tripping operation more labor-saving, and improving the stability of the product.

[0005] The embodiments of the present invention are implemented as follows:

[0006] In a first aspect, this invention provides an operating mechanism including a rotating shaft and a driving mechanism. The driving mechanism includes a cam disk and a pawl. The rotating shaft is connected to a moving contact of a switching unit via the cam disk. The pawl abuts against the cam disk. The rotating shaft is driven to rotate, causing the driving mechanism to store energy. When the pawl releases its contact with the cam disk, the driving mechanism releases energy, causing the moving contact to rotate, thereby enabling the switching unit to open or close. The rotation centers of the rotating shaft, the driving mechanism, and the moving contact are coaxial. This operating mechanism reduces the space occupied by the mechanism, thereby significantly reducing product size, making tripping operations more labor-saving, and improving product stability.

[0007] In one possible implementation, the drive mechanism further includes a mechanism spring. The rotating shaft is connected to the shaft hole of the cam disk, and the cam disk is connected to the shaft hole of the moving contact. The mechanism spring is sleeved on the cam disk, and the opposite ends of the mechanism spring abut against the rotating shaft and the cam disk, respectively. When the pawl abuts against the cam disk, the rotating shaft is driven to rotate relative to the cam disk to store energy in the mechanism spring. When the rotating shaft continues to rotate until it abuts against the pawl to release the pawl from the cam disk, the mechanism spring releases energy and drives the cam disk to rotate, thereby rotating the moving contact to achieve the opening and closing operation.

[0008] In one possible implementation, the pawl is provided with a first abutting part, and the cam disk is provided with a second abutting part. The first abutting part and the second abutting part abut against each other so that the pawl abuts against the cam disk.

[0009] As one possible implementation, the rotating shaft is provided with an unlocking part. When the rotating shaft rotates to the point where the unlocking part abuts against the pawl, the unlocking part is used to push the pawl to rotate toward the side away from the cam disk.

[0010] In one possible implementation, a return spring is provided on the pawl, and the pawl rotates toward the side away from the cam disk to allow the return spring to store energy. The return spring is used to provide a restoring force for the pawl to rotate toward the side closer to the cam disk.

[0011] In one possible implementation, the rotating shaft is provided with a first bent portion, the cam disk is provided with a second bent portion, and the opposite ends of the mechanism spring overlap with the opposite sides of the first bent portion and the second bent portion, respectively.

[0012] In one possible implementation, the drive mechanism further includes a bushing, which is sleeved on the rotating shaft. The rotating shaft is provided with a limiting part, and the bushing is provided with a limiting hole. The limiting part is limited and accommodated within the limiting hole.

[0013] As one possible implementation, it also includes a bottom plate and a top plate arranged opposite to each other, and a fastener connecting the bottom plate and the top plate. The cam disk and the pawl are respectively mounted on the bottom plate. The rotating shaft passes through a through hole in the top plate and is connected to the shaft hole on the upper surface of the cam disk. The lower surface of the cam disk passes through a through hole in the bottom plate and is connected to the shaft hole of the moving contact.

[0014] As one possible implementation, the pawl and the cam disk are made of metal.

[0015] A second aspect of this invention provides a disconnecting switch, including a handle, multiple switching units, and the aforementioned operating mechanism. The multiple switching units and the operating mechanism are stacked sequentially, with the housings of adjacent switching units fixedly connected. The handle is driven to the moving contacts of the multiple switching units via the operating mechanism, and the handle drives the operating mechanism to synchronously rotate the moving contacts of the multiple switching units. This operating mechanism reduces the space occupied by the mechanism, thereby significantly reducing product size, making the tripping operation more effortless, and improving product stability.

[0016] The beneficial effects of the embodiments of the present invention include:

[0017] The operating mechanism includes a rotating shaft and a drive mechanism. The drive mechanism includes a cam plate and a pawl. The rotating shaft is connected to the moving contact of the switching unit via the cam plate. The pawl abuts against the cam plate. The rotating shaft is driven to rotate, causing the drive mechanism to store energy. When the pawl releases its contact with the cam plate, the drive mechanism releases its energy, causing the moving contact to rotate, thus enabling the switching unit to open or close. The rotation centers of the rotating shaft, drive mechanism, and moving contact are coaxial. The pawl abuts against the cam plate. When the user operates the handle, causing the rotating shaft to rotate under external force, the drive mechanism first stores energy. As the rotating shaft continues to rotate, when the pawl releases its contact with the cam plate, the drive mechanism releases its energy, causing the moving contact to move towards or away from the stationary contact, thereby enabling the switching unit to open or close. Compared to existing technologies, the operating mechanism provided in this application arranges the rotation centers of the rotating shaft, drive mechanism, and moving contact in a coaxial manner during layout design. In other words, the rotation centers of the rotating shaft, drive mechanism, and moving contact are located on the same axis, which can reduce the space occupied by the mechanism, thereby significantly reducing the product size, making the tripping operation more labor-saving, and improving the stability of the product. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, 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 the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is one of the structural schematic diagrams of the disconnecting switch provided in an embodiment of the present invention;

[0020] Figure 2 This is a second schematic diagram of the structure of the disconnecting switch provided in an embodiment of the present invention;

[0021] Figure 3 This is one of the structural schematic diagrams of the operating mechanism provided in an embodiment of the present invention;

[0022] Figure 4 This is a second schematic diagram of the structure of the operating mechanism provided in an embodiment of the present invention;

[0023] Figure 5 This is the third schematic diagram of the structure of the operating mechanism provided in the embodiment of the present invention;

[0024] Figure 6 The fourth schematic diagram of the operating mechanism provided in the embodiment of the present invention.

[0025] Icons: 100-Operating mechanism; 10-Rotating shaft; 11-Unlocking part; 12-First bending part; 13-Limiting part; 21-Cam plate; 211-Second supporting part; 212-Second bending part; 22-Mechanism spring; 23-Pawl; 231-First supporting part; 232-Reset spring; 24-Busset; 241-Limiting hole; 25-Base plate; 26-Top plate; 27-Fixing component; 28-Mounting shaft; 200-Switch unit; 210-Moving contact; 220-Housing. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0028] 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.

[0029] In the description of this invention, 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 invention is in use. They are only for the convenience of describing this invention 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 of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] 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.

[0031] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] Please refer to the reference. Figures 1 to 6 This application provides a disconnecting switch, including a handle, a switch unit 200, and an operating mechanism 100. The number of switch units 200 can be multiple, and the multiple switch units 200 and the operating mechanism 100 are stacked sequentially. The housings 220 of two adjacent switch units 200 are fixedly connected. The handle is driven to the moving contacts 210 of the multiple switch units 200 through the operating mechanism 100. The handle drives the operating mechanism 100 to drive the moving contacts 210 of the multiple switch units 200 to rotate synchronously. In this way, the user can drive the operating mechanism 100 to move by operating the handle, thereby driving the multiple switch units 200 to perform opening and closing operations simultaneously.

[0033] Specifically, such as Figures 1 to 6 As shown, the operating mechanism 100 includes a rotating shaft 10 and a drive mechanism. The drive mechanism includes a cam disk 21 and a pawl 23. The rotating shaft 10 is connected to the moving contact 210 of the switching unit 200 via the cam disk 21. The pawl 23 abuts against the cam disk 21. The rotating shaft 10 is driven to rotate, causing the drive mechanism to store energy. When the pawl 23 releases its contact with the cam disk 21, the drive mechanism releases energy, causing the moving contact 210 to rotate, thereby enabling the switching unit 200 to open and close. The rotation centers of the rotating shaft 10, the drive mechanism, and the moving contact 210 are coaxially arranged. This operating mechanism 100 can reduce the space occupied by the mechanism, thereby significantly reducing the product size, making the tripping operation more labor-saving, and improving the stability of the product.

[0034] It should be noted that the operating mechanism 100 includes a rotating shaft 10 and a drive mechanism. The handle is fixedly connected to the rotating shaft 10, and the drive mechanism includes a cam disk 21 and a pawl 23. The rotating shaft 10 is connected to the moving contact 210 of the switch unit 200 through the cam disk 21. The pawl 23 is used to abut against the cam disk 21. When the user operates the handle to make the rotating shaft 10 rotate under external force, it can drive the drive mechanism to store energy first. As the rotating shaft 10 continues to rotate, when the pawl 23 releases its abutment against the cam disk 21, the drive mechanism can release energy and drive the moving contact 210 to move away from or closer to the stationary contact, thereby enabling the switch unit 200 to perform opening and closing operations. Compared with the prior art, the operating mechanism 100 provided in this application arranges the rotation centers of the rotating shaft 10, the drive mechanism and the moving contact 210 on the same axis when it is designed. In other words, the rotation centers of the rotating shaft 10, the drive mechanism and the moving contact 210 are located on the same axis. This reduces the space occupied by the mechanism, thereby significantly reducing the product size, making the tripping operation more labor-saving and improving the stability of the product.

[0035] As one possible implementation method, such as Figure 3 and Figure 4 As shown, the drive mechanism also includes a mechanism spring 22 and a pawl 23. The rotating shaft 10 is connected to the shaft hole of the cam disk 21, and the cam disk 21 is connected to the shaft hole of the moving contact 210. The mechanism spring 22 is sleeved on the cam disk 21, and the opposite ends of the mechanism spring 22 abut against the rotating shaft 10 and the cam disk 21 respectively. When the pawl 23 abuts against the cam disk 21, the rotating shaft 10 is driven to rotate relative to the cam disk 21 so that the mechanism spring 22 stores energy. When the rotating shaft 10 continues to rotate until it abuts against the pawl 23 so that the pawl 23 releases its abutment against the cam disk 21, the mechanism spring 22 releases its energy and drives the cam disk 21 to rotate so that the moving contact 210 rotates to realize the opening and closing operation.

[0036] It should be noted that, as Figure 3 and Figure 4As shown, the drive mechanism includes a cam disk 21, a mechanism spring 22, and a pawl 23. The rotating shaft 10 and the cam disk 21 can be connected through a shaft hole. That is, a mounting hole can be provided on the cam disk 21, and the rotating shaft 10 is housed in the mounting hole to connect the rotating shaft 10 and the cam disk 21. The cam disk 21 and the moving contact 210 can also be connected through a shaft hole so that the rotation of the cam disk 21 drives the moving contact 210 to rotate synchronously. The mechanism spring 22 is sleeved on the cam disk 21, and the opposite ends of the mechanism spring 22 abut against the rotating shaft 10 and the cam disk 21, respectively. Thus, when the rotating shaft 10 is driven by an external force, it moves relative to the cam disk. When 21 rotates, the mechanism spring 22 can compress and store elastic potential energy, and the mechanism spring 22 has a tendency to return to its natural shape. When the pawl 23 abuts against the cam disk 21, it can lock the relative rotation of the rotating shaft 10 and the cam disk 21, so that the moving contact 210 is locked in the open or closed state, thereby ensuring the stability of the open and closed states. Until the rotating shaft 10 continues to rotate until it abuts against the pawl 23, the pawl 23 can release the abutment from the cam disk 21. At this time, the mechanism spring 22 releases elastic potential energy, drives the cam disk 21 to rotate, so that the moving contact 210 rotates to realize the conversion of the open and closed states.

[0037] As one possible implementation method, such as Figure 4 and Figure 5 As shown, the pawl 23 is provided with a first abutting part 231, and the cam disk 21 is provided with a second abutting part 211 along the circumferential direction away from the rotating shaft 10. The first abutting part 231 and the second abutting part 211 abut against each other so that the pawl 23 abuts against the cam disk 21. For example, the first abutting part 231 is a groove, and the second abutting part 211 is a protrusion adapted to the groove, so as to ensure that the pawl 23 and the cam disk 21 can be stably kept in the locked state when no external force is applied, thereby ensuring that the moving contact 210 is stably locked in the open or closed state.

[0038] For example, in this embodiment, there are two pawls 23, which are symmetrically arranged on opposite sides of the cam disk 21. Along the circumferential direction of the cam disk 21, there are multiple second abutment portions 211, such as four. In this way, the user only needs to rotate the handle (or the shaft 10) 90° to realize the switching of the opening and closing state of the moving contact 210, making the operation simpler and less strenuous.

[0039] As one possible implementation method, such as Figures 3 to 5As shown, the rotating shaft 10 is provided with an unlocking part 11. When the rotating shaft 10 rotates to the point where the unlocking part 11 abuts against the pawl 23, the unlocking part 11 is used to push the pawl 23 to rotate toward the side away from the cam disk 21. For example, in this embodiment, the unlocking part 11 is an unlocking shaft disposed on the side of the rotating shaft 10 near the cam disk 21. The distance between the unlocking part 11 and the rotation center of the rotating shaft 10 (hereinafter referred to as the movement radius of the unlocking part 11) is slightly larger than the distance between the edge of the second abutment part 211 and the rotation center of the rotating shaft 10 (hereinafter referred to as the design radius of the second abutment part 211) to avoid interference between the unlocking part 11 and the second abutment part 211 during movement. Furthermore, the distance between the unlocking part 11 and the rotation center of the rotating shaft 10 (hereinafter referred to as the movement radius of the unlocking part 11) is approximately equal to the distance between the edge of the first abutment part 231 and the rotation center of the rotating shaft 10 when the first abutment part 231 is in the abutting state (hereinafter referred to as the abutting radius of the first abutment part 231) to ensure that the unlocking part 11 can abut against the first abutment part 231 during movement and successfully push the pawl 23 toward the side away from the cam disk 21.

[0040] As one possible implementation method, such as Figure 3 and Figure 4 As shown, a return spring 232 is provided on the pawl 23. The pawl 23 rotates toward the side away from the cam disk 21 to allow the return spring 232 to store energy. The return spring 232 is used to provide a restoring force for the pawl 23 to rotate toward the side closer to the cam disk 21. Therefore, when the unlocking part 11 pushes the pawl 23 to rotate toward the side away from the cam disk 21, the return spring 232 can compress and store elastic potential energy. Furthermore, the return spring 232 has a tendency to return to its natural shape, ensuring that the pawl 23 can rotate toward the side closer to the cam disk 21, thereby causing the pawl 23 to abut against the cam disk 21 again.

[0041] As one possible implementation method, such as Figure 3 As shown, the rotating shaft 10 has a first mating surface, and the cam disk 21 has a second mating surface. The first and second mating surfaces are opposite to each other and spaced apart, so as to limit the movement of the mechanism spring 22 along the axial direction of the rotating shaft 10 through the first and second mating surfaces. The rotating shaft 10 is provided with a first bent portion 12, and the cam disk 21 is provided with a second bent portion 212. The first bent portion 12 and the second bent portion 212 can extend along the axial direction of the rotating shaft 10 to ensure that the opposite ends of the mechanism spring 22 can easily overlap with the opposite sides of the first bent portion 12 and the second bent portion 212. Thus, when the rotating shaft 10 and the cam disk 21 rotate relative to each other, the opposite sides of the first bent portion 12 and the second bent portion 212 can respectively abut against the opposite ends of the mechanism spring 22, thereby causing the mechanism spring 22 to be compressed and gradually store energy.

[0042] As one possible implementation method, such as Figure 5 and Figure 6 As shown, the drive mechanism also includes a bushing 24, which is sleeved on the rotating shaft 10. The rotating shaft 10 has a limiting part 13, and the bushing 24 has a limiting hole 241. The limiting part 13 is contained within the limiting hole 241, thus limiting the rotation of the rotating shaft 10 through the bushing 24. Simultaneously, it can share some of the torque of the mechanism spring 22, reducing the axial deflection of the rotating shaft 10 and improving product consistency. For example, the limiting hole 241 is an oblong hole. There are two limiting parts 13 and two limiting holes 241, arranged in a one-to-one correspondence, and they are centrally symmetrically arranged along the rotation center of the rotating shaft 10.

[0043] As one possible implementation method, such as Figure 2 and Figure 3 As shown, the operating mechanism 100 also includes a base plate 25 and a top plate 26 disposed opposite to each other, and a fastener 27 (e.g., a fixed shaft) connecting the base plate 25 and the top plate 26. The cam disk 21 and the pawl 23 are respectively mounted on the base plate 25. The rotating shaft 10 passes through a through hole on the top plate 26 and connects to the shaft hole on the upper surface of the cam disk 21. The lower surface of the cam disk 21 passes through a through hole on the base plate 25 and connects to the shaft hole of the moving contact 210, so that the drive mechanism is modularly installed between the base plate 25 and the top plate 26. The operating mechanism 100 formed thereby can be modularly installed in different switching electrical appliances, thereby improving the applicability of the operating mechanism 100.

[0044] In addition, for example, such as Figures 3 to 6 As shown, a mounting shaft 28 can be provided on the base plate 25. The pawl 23 can be rotatably connected to the mounting shaft 28 via a return spring 232. One end of the return spring 232 can be connected to the fixing member 27, and the other end can be connected to the base plate 25. In this way, it can be ensured that the return spring 232 can provide a return force for the pawl 23. In addition, a limit member can be provided above the return spring 232 to prevent the return spring 232 from detaching from the mounting shaft 28.

[0045] As one possible implementation method, such as Figure 4 As shown, the pawl 23 and the cam disk 21 can be made of plastic or metal. When the pawl 23 and the cam disk 21 are made of metal, the pawl 23 and the cam disk 21 have the advantages of being more durable and more reliable, thereby improving the service life of the operating mechanism 100.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0047] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

Claims

1. An operating mechanism, characterized in that, The device includes a rotating shaft (10) and a driving mechanism. The driving mechanism includes a cam disk (21) and a pawl (23). The rotating shaft (10) is connected to the moving contact (210) of the switch unit (200) through the cam disk (21). The pawl (23) is used to abut against the cam disk (21). The rotating shaft (10) is driven to rotate and drive the driving mechanism to store energy. When the pawl (23) releases its abutment against the cam disk (21), the driving mechanism releases energy and drives the moving contact (210) to rotate, so that the switch unit (200) can open and close. The rotation centers of the rotating shaft (10), the driving mechanism and the moving contact (210) are coaxially arranged.

2. The operating mechanism according to claim 1, characterized in that, The drive mechanism also includes a mechanism spring (22). The rotating shaft (10) is connected to the shaft hole of the cam disk (21). The cam disk (21) is connected to the shaft hole of the moving contact (210). The mechanism spring (22) is sleeved on the cam disk (21), and the opposite ends of the mechanism spring (22) abut against the rotating shaft (10) and the cam disk (21) respectively. When the pawl (23) abuts against the cam disk (21), the rotating shaft (10) is driven to rotate relative to the cam disk (21) to store energy in the mechanism spring (22). When the rotating shaft (10) continues to rotate until it abuts against the pawl (23) to release the pawl (23) from the cam disk (21), the mechanism spring (22) releases energy to drive the cam disk (21) to rotate, so that the moving contact (210) rotates to realize the opening and closing operation.

3. The operating mechanism according to claim 1, characterized in that, The pawl (23) is provided with a first abutting part (231), and the cam disk (21) is provided with a second abutting part (211). The first abutting part (231) and the second abutting part (211) abut against each other so that the pawl (23) abuts against the cam disk (21).

4. The operating mechanism according to claim 1, characterized in that, The rotating shaft (10) is provided with an unlocking part (11). When the rotating shaft (10) rotates to the point where the unlocking part (11) abuts against the pawl (23), the unlocking part (11) is used to push the pawl (23) to rotate toward the side away from the cam disk (21).

5. The operating mechanism according to claim 4, characterized in that, A return spring (232) is provided on the pawl (23). The pawl (23) rotates toward the side away from the cam disk (21) to allow the return spring (232) to store energy. The return spring (232) is used to provide a return force for the pawl (23) to rotate toward the side closer to the cam disk (21).

6. The operating mechanism according to claim 2, characterized in that, The rotating shaft (10) is provided with a first bending part (12), the cam disk (21) is provided with a second bending part (212), and the two ends of the mechanism spring (22) overlap with the opposite sides of the first bending part (12) and the second bending part (212), respectively.

7. The operating mechanism according to claim 1, characterized in that, The drive mechanism also includes a bushing (24), which is sleeved on the rotating shaft (10). The rotating shaft (10) is provided with a limiting part (13), and the bushing (24) is provided with a limiting hole (241). The limiting part (13) is limited and accommodated in the limiting hole (241).

8. The operating mechanism according to claim 1, characterized in that, It also includes a base plate (25) and a top plate (26) arranged opposite to each other, and a fastener (27) connecting the base plate (25) and the top plate (26). The cam disk (21) and the pawl (23) are respectively mounted on the base plate (25). The rotating shaft (10) passes through the through hole on the top plate (26) and is connected to the shaft hole on the upper surface of the cam disk (21). The lower surface of the cam disk (21) passes through the through hole on the base plate (25) and is connected to the shaft hole of the moving contact (210).

9. The operating mechanism according to claim 1, characterized in that, The pawl (23) and the cam disk (21) are made of metal.

10. A disconnecting switch, characterized in that, The device includes a handle, multiple switch units (200), and an operating mechanism (100) as described in any one of claims 1 to 9. The multiple switch units (200) and the operating mechanism (100) are stacked sequentially. The housings (220) of two adjacent switch units (200) are fixedly connected. The handle is driven to the moving contacts (210) of the multiple switch units (200) through the operating mechanism (100). The handle drives the operating mechanism (100) to drive the moving contacts (210) of the multiple switch units (200) to rotate synchronously.

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