Operating mechanism and rotary switch

Abstract

The application discloses an operating mechanism and a rotary switch, and relates to the technical field of electricity. The operating mechanism comprises a side plate, a torsion piece rotationally connected with the side plate, and a rotating piece coaxially arranged with the torsion piece, a first connecting rod is rotationally connected on the rotating piece, one end of the first connecting rod away from the rotating piece is connected with a connecting frame, the connecting frame can rotate by a preset angle relative to the side plate, a rotating shaft is further rotationally arranged on the side plate, and the rotating shaft is connected with the connecting frame through a lock catch connecting rod assembly. The rotating piece, the first connecting rod, the connecting frame and the side plate form a four-connecting-rod mechanism, and when the torsion piece drives the connecting frame to rotate relative to the side plate, the rotating angle of the torsion piece is greater than the rotating angle of the connecting frame. The stability of the rotary switch breaking and the consistency of the breaking time can be improved, and the volume of the rotary switch is reduced.

Description

Technical Field

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

[0002] As a type of disconnecting switch, a rotary switch, when in the open position, should have an insulation distance between the moving and stationary contacts that meets the specified requirements, and the switch should have a clear open indicator. When in the closed position, the contacts should be able to carry the current under normal circuit conditions and the current under abnormal conditions for a specified time. Currently known rotary switches all include an operating mechanism and a switching device. The switching device has a multi-layer structure, with each layer including a housing and moving and stationary contacts supported by the housing for connecting and disconnecting. The moving contacts of multiple layers rotate around the same axis of rotation, and the moving contact of each layer separates and closes with its corresponding stationary contact, simultaneously enabling the switching of multiple circuits.

[0003] Traditional rotary switches have the operating mechanism and contact system arranged coaxially. They typically use a torsion spring to rotate, compress, and release to drive opening and closing. This method requires a large torsion spring to ensure the switch's excellent breaking performance. When remote opening is required, the additional unlocking mechanism increases the size of the switch body, making the entire unit more cumbersome. Furthermore, the torsion spring has a large manufacturing error, resulting in poor overall stability and inconsistent breaking time. Summary of the Invention

[0004] The purpose of this application is to provide an operating mechanism and a rotary switch that can improve the stability of the rotary switch's breaking time and the consistency of the breaking time, and reduce the size of the rotary switch.

[0005] The embodiments of this application are implemented as follows:

[0006] In one aspect of this application, an operating mechanism is provided, including a side plate, a torsion member rotatably connected to the side plate, and a rotating member coaxially disposed with the torsion member. A first connecting rod is rotatably connected to the rotating member, and a connecting frame is connected to the end of the first connecting rod away from the rotating member. The connecting frame is capable of rotating relative to the side plate by a preset angle. A rotating shaft is also rotatably disposed on the side plate, and the rotating shaft is connected to the connecting frame through a locking link assembly. The rotating member, the first connecting rod, the connecting frame, and the side plate form a four-bar linkage mechanism. When the torsion member drives the connecting frame to rotate relative to the side plate, the rotation angle of the torsion member is greater than the rotation angle of the connecting frame.

[0007] Optionally, the rotating component includes a rotating body and a support arm disposed on the rotating body, wherein one end of the first connecting rod is rotatably connected to the support arm and the other end is rotatably connected to the connecting frame.

[0008] Optionally, the connecting frame includes a support frame and a second connecting rod connected to each other, with one end of the second connecting rod fixedly connected to the support frame and the other end rotatably connected to the first connecting rod.

[0009] Optionally, the support frame includes a support body, and a first connecting arm and a second connecting arm disposed on the support body. The first connecting arm, the support body, and the second connecting arm together form a U-shaped structure. The side plate includes two oppositely disposed side plates, and an arc-shaped groove is provided on the side plate. The first connecting arm and the second connecting arm respectively abut against the corresponding arc-shaped groove.

[0010] Optionally, the locking linkage assembly includes a third linkage rotatably connected to the rotating shaft and a mounting bracket rotatably connected to the side plate. A connecting shaft is provided at the end of the third linkage away from the rotating shaft. A fourth linkage is engaged between the mounting bracket and the connecting shaft, and an elastic element is connected between the connecting shaft and the support frame. The rotating shaft, the mounting bracket, the third linkage, and the fourth linkage form a four-bar linkage mechanism.

[0011] Optionally, a connecting block is provided on the side wall of the rotating shaft, and the third connecting rod is rotatably connected to the rotating shaft through the connecting block.

[0012] Optionally, the two side plates are arranged parallel to each other at intervals, and the two side plates are connected by a positioning shaft.

[0013] Optionally, the first connecting rod and the third connecting rod are both crank rod structures.

[0014] Optionally, a locking protrusion and a locking groove are respectively provided between the torsion member and the rotation member, so that the torsion member and the rotation member are connected through the locking protrusion and the locking groove.

[0015] Optionally, the rotation angle of the torsion member is greater than or equal to 90°.

[0016] In another aspect of the embodiments of this application, a rotary switch is provided, including an operating mechanism as described in any one of the above claims, and an on / off device connected to the rotating shaft of the operating mechanism.

[0017] The beneficial effects of the embodiments of this application include:

[0018] The operating mechanism and rotary switch provided in this application embodiment utilize a side plate and a torsion member rotatably connected to the side plate. The torsion member rotates relative to the side plate under the drive of the handle. When the torsion member rotates, a rotating component coaxially arranged with it rotates synchronously. The rotation of the rotating component causes the first connecting rod to have a displacement in the rotational direction, and also causes the first connecting rod to rotate relative to the rotating component. When the first connecting rod moves, it in turn causes the connecting frame to rotate relative to the side plate. That is, the four-bar linkage composed of the rotating component, the first connecting rod, the connecting frame, and the side plate interacts under the driving force of the rotating component. Ultimately, the connecting frame drives the locking linkage assembly to rotate, thereby achieving the required opening and closing operation. Furthermore, only a small angle rotation of the torsion member is needed to achieve a large angle rotation of the rotating shaft. Compared to the traditional method of using a torsion spring to rotate, compress, and release to drive the opening and closing operation, this method improves the stability and consistency of the rotary switch's breaking time, and reduces the size of the rotary switch. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is one of the structural schematic diagrams of the operating mechanism provided in the embodiments of this application;

[0021] Figure 2 This is the second schematic diagram of the structure of the operating mechanism provided in the embodiments of this application;

[0022] Figure 3 The third schematic diagram of the operating mechanism provided in the embodiments of this application;

[0023] Figure 4 Fourth schematic diagram of the structure of the operating mechanism provided in the embodiments of this application;

[0024] Figure 5 This is a schematic diagram of the structure of the rotating component provided in the embodiments of this application;

[0025] Figure 6 This is a schematic diagram of the structure of the connecting frame provided in an embodiment of this application;

[0026] Figure 7 This is a schematic diagram of the structure of the torsion member provided in the embodiments of this application;

[0027] Figure 8 This is a schematic diagram of the structure of a rotary switch provided in an embodiment of this application.

[0028] Icons: 100-Operating mechanism; 110-Side plate; 112-Positioning shaft; 120-Torsion component; 122-Snap protrusion; 130-Rotating component; 132-First connecting rod; 134-Rotating body; 136-Support arm; 138-Slot; 140-Connecting frame; 142-Support frame; 1422-Supporting body; 1424-First connecting arm; 1426-Second connecting arm; 144-Second connecting rod; 150-Rotating shaft; 152-Connecting block; 160-Lock linkage assembly; 162-Third connecting rod; 164-Lock bracket; 166-Fourth connecting rod; 168-Elastic component; 170-Connecting shaft; 200-Rotary switch; 210-On / off device. Detailed Implementation

[0029] 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.

[0030] 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. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0031] It should be noted that similar reference numerals 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. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" 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 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.

[0033] Existing rotary switches, with the operating mechanism and contact system arranged coaxially, typically use a torsion spring to rotate, compress, and release, driving the opening and closing of the circuit. This method requires a large torsion spring to maintain the switch's excellent breaking performance. When remote opening is required, the additional unlocking mechanism increases the size of the switch body, making the entire unit more cumbersome. Furthermore, the torsion spring has significant manufacturing errors, resulting in poor overall stability and inconsistent breaking time. To address these issues, this application provides the following solutions to improve the stability and consistency of the rotary switch's breaking time, while reducing its size.

[0034] Please refer to Figure 1 and Figure 2 This embodiment provides an operating mechanism 100, including a side plate 110, a torsion member 120 rotatably connected to the side plate 110, and a rotation member 130 coaxially arranged with the torsion member 120. A first connecting rod 132 is rotatably connected to the rotation member 130. A connecting frame 140 is connected to the end of the first connecting rod 132 away from the rotation member 130. The connecting frame 140 can rotate relative to the side plate 110 by a preset angle. A rotating shaft 150 is also rotatably arranged on the side plate 110. The rotating shaft 150 and the connecting frame 140 are connected by a locking link assembly 160. The rotation member 130, the first connecting rod 132, the connecting frame 140 and the side plate 110 form a four-bar linkage mechanism. When the torsion member 120 drives the connecting frame 140 to rotate relative to the side plate 110, the rotation angle of the torsion member 120 is greater than the rotation angle of the connecting frame 140.

[0035] Specifically, the side plate 110 is installed inside the housing and provides stable support. A torsion member 120, rotatably connected to the side plate 110, ensures stable support during rotation. The torsion member 120 is connected to a rotating handle, allowing it to rotate. A rotating member 130 is coaxially mounted on the torsion member 120. When the torsion member 120 rotates, it drives the rotating member 130 to rotate synchronously, transmitting the torque of the torsion member 120 to the first connecting rod 132. When the first connecting rod 132 is acted upon by the force of the rotating member 130, it deflects in the rotational direction and rotates relative to the rotating member 130. This movement of the first connecting rod 132 causes the connecting frame 140 to rotate relative to the side plate 110.

[0036] Please refer to this again. Figure 3 and Figure 4 , Figure 3 The graphic connected by the bold black lines in the middle represents the structure of the four-bar linkage consisting of the rotating component 130, the first connecting rod 132, the connecting frame 140, and the side plate 110. This is the state diagram of the operating mechanism 100 when it is in the closed position. Figure 4The figure connected by the bold black line is a state diagram of the four-bar linkage when the circuit breaker is open. As can be seen from the figure, when the connecting frame 140 is rotated by the rotating component 130, the required transmission can be achieved by the connecting frame 140 having a small deflection angle relative to the side plate 110.

[0037] The rotating shaft 150, rotatably mounted on the side plate 110, connects to the moving contact of the switching device to drive its rotation. To ensure sufficient opening distance when the switching device is open, the rotating shaft 150 needs to drive the moving contact to deflect by 90°. Since the rotating shaft 150 is connected to the connecting frame 140 via a locking linkage assembly 160, when the connecting frame 140 rotates relative to the side plate 110, it drives the locking linkage assembly 160 to have a large displacement, allowing the rotating shaft 150 to achieve the required rotation angle. Simultaneously, the four-bar linkage mechanism, consisting of the rotating component 130, the first connecting rod 132, the connecting frame 140, and the side plate 110, only requires the connecting frame 140 to rotate by approximately 37° when the rotating component 130 is driven to rotate by the torsion component 120, thus driving the four-bar linkage mechanism. This eliminates the need for a large space for the connecting frame 140 to operate.

[0038] It should be noted that the embodiments of this application do not impose specific restrictions on the positional relationship between the torsion member 120 and the rotating shaft 150. For example, the torsion member 120 and the rotating shaft 150 can be located on the same rotating shaft 150 to make full use of the effective operating space and improve the compactness between the various components. They can also be set in other positions as needed, as long as the required transmission can be guaranteed.

[0039] The operating mechanism 100 provided in this embodiment of the application uses a side plate 110 and a torsion member 120 rotatably connected to the side plate 110. The torsion member 120 rotates relative to the side plate 110 under the drive of the handle. When the torsion member 120 rotates, a rotating member 130, coaxially arranged with the torsion member 120, rotates synchronously. When the rotating member 130 rotates, it causes the first connecting rod 132 to have a displacement in the rotational direction, and also causes the first connecting rod 132 to rotate relative to the rotating member 130. When the first connecting rod 132 moves, it also causes the connecting frame 140 to rotate relative to the side plate 110. That is, the four-bar linkage composed of the rotating member 130, the first connecting rod 132, the connecting frame 140, and the side plate 110 interacts under the driving force of the rotating member 130. Ultimately, the connecting frame 140 drives the locking link assembly 160 to move, which in turn drives the rotating shaft 150 to rotate, thus achieving the required opening and closing operation. At the same time, a relatively large rotation angle of the rotating shaft 150 can be achieved by simply rotating the torsion member 120 by a small angle. Compared with the traditional method of using a torsion spring to rotate, compress, and release to drive the opening and closing of the circuit breaker, this method can improve the stability of the rotary switch's opening and the consistency of the opening time, while reducing the size of the rotary switch.

[0040] like Figure 5 As shown, the rotating component 130 includes a rotating body 134 and a support arm 136 disposed on the rotating body 134. One end of the first connecting rod 132 is rotatably connected to the support arm 136 and the other end is rotatably connected to the connecting frame 140.

[0041] Specifically, two support arms 136 can be configured, connected by a rotating body 134. Two first connecting rods 132 can also be configured accordingly. This enhances the structural strength of the connection, prevents deformation at the connection point under stress, and ensures reliable transmission. Furthermore, by providing support arms 136 on the rotating body 134, it ensures that the connection point between the first connecting rod 132 and the rotating component 130 is located at an eccentric position during the rotation of the rotating component 130. This makes transmission easier and ensures smooth operation.

[0042] like Figure 6 As shown, the connecting frame 140 includes a support frame 142 and a second connecting rod 144 that are connected to each other. One end of the second connecting rod 144 is fixedly connected to the support frame 142, and the other end is rotatably connected to the first connecting rod 132.

[0043] Specifically, when the support frame 142 is connected to the second connecting rod 144, the connection between the support frame 142 and the second connecting rod 144 can be fixed with rivets or with screws, as long as a stable connection between the support frame 142 and the second connecting rod 144 can be ensured. In this way, the connecting frame 140 can be driven to move by the first connecting rod 132 connected to the second connecting rod 144.

[0044] like Figure 1 and Figure 6 As shown, the support frame 142 includes a support body 1422, and a first connecting arm 1424 and a second connecting arm 1426 disposed on the support body 1422. The first connecting arm 1424, the support body 1422 and the second connecting arm 1426 together form a U-shaped structure. The side plate 110 includes two oppositely disposed side plates. The side plate 110 is provided with an arc-shaped groove. The first connecting arm 1424 and the second connecting arm 1426 respectively abut against the corresponding arc-shaped groove.

[0045] Specifically, by providing a first connecting arm 1424 and a second connecting arm 1426 on the support body 1422, two second connecting rods 144 can be correspondingly provided to connect with the first connecting arm 1424 and the second connecting arm 1426 respectively. This forms a double connection structure, which helps ensure the stability of the connection. Simultaneously, the first connecting arm 1424, the support body 1422, and the second connecting arm 1426 together form a U-shaped structure, within which the locking connecting rod assembly 160 can be housed, helping to fully utilize limited space and improve space utilization. The side plates 110 also include two oppositely arranged plates, allowing the first connecting arm 1424 and the second connecting arm 1426 to respectively engage with their corresponding side plates 110, enabling the support frame 142 to rotate relative to the arc-shaped slots on the side plates 110.

[0046] like Figure 1 and Figure 2 As shown, the locking linkage assembly 160 includes a third link 162 rotatably connected to the rotating shaft 150 and a mounting bracket 164 rotatably connected to the side plate 110. A connecting shaft 170 is provided at the end of the third link 162 away from the rotating shaft 150. A fourth link 166 is engaged between the mounting bracket 164 and the connecting shaft 170. An elastic element 168 is connected between the connecting shaft 170 and the support frame 142. The rotating shaft 150, the connecting shaft 170, the third link 162 and the fourth link 166 form a four-bar linkage mechanism.

[0047] Specifically, the latching frame 164 can also be configured as a U-shaped structure, with its two support arms rotatably connected to two oppositely arranged side plates 110. Two third connecting rods 162 are rotatably mounted on the rotating shaft 150, and a connecting shaft 170 is provided at the end of each third connecting rod 162 away from the rotating shaft 150 to ensure stable support for the third connecting rods 162. A fourth connecting rod 166 is engaged between the latching frame 164 and the connecting shaft 170 to establish a connection between the third connecting rods 162 and the latching frame 164. Simultaneously, an elastic element 168 is disposed between the connecting shaft 170 and the support body 1422 of the support frame 142. The elastic element 168 can be a tension spring, and the number of elastic elements 168 can be set to one or two as needed to provide the elastic force required for opening and closing the latching linkage assembly 160 during operation, thereby maintaining the stability of the current state.

[0048] Please refer to this again. Figure 3 and Figure 4 , Figure 3 The figure connected by the bold black dashed line is the structural form of the four-bar linkage consisting of the rotating shaft 150, the connecting shaft 170, the third link 162, and the fourth link 166. This is the state diagram of the operating mechanism 100 when it is in the closed position. Figure 4The figure connected by the bold black dashed line is a state diagram of the four-bar linkage when it is tripped. As can be seen from the figure, when the connecting frame 140 is driven to rotate by the rotating part 130, the connecting frame 140 rotates relative to the side plate 110. The connecting frame 140 and the connecting shaft 170 are connected by the elastic part 168 to change the position of the connecting shaft 170, thereby realizing the required tripping operation.

[0049] like Figure 2 As shown, a connecting block 152 is provided on the side wall of the rotating shaft 150, and the third connecting rod 162 is rotatably connected to the rotating shaft 150 through the connecting block 152.

[0050] Specifically, using the above method, the third link 162 can be connected to the eccentric position of the rotating shaft 150, so that the third link 162 can drive the rotating shaft 150 to rotate with a smaller force, which helps to improve the smoothness of opening and closing. In addition, by providing a connecting block 152 on the side wall of the rotating shaft 150, it is also more convenient to connect with the third link 162, which helps to reduce the difficulty of operation.

[0051] like Figure 1 As shown, the two side plates 110 are arranged parallel to each other at intervals, and the two side plates 110 are connected by a positioning shaft 112.

[0052] Specifically, by setting a positioning shaft 112 between the two side plates 110, it is beneficial to ensure the stability of the connection between the two side plates 110, so as to facilitate the setting of the required transmission connection between the two side plates 110. In this embodiment of the application, there is no specific limitation on the number of positioning shafts 112, as long as a stable connection between the two side plates 110 is ensured and the required transmission is not affected. For example, the positioning shafts 112 can be set to two or three.

[0053] In an optional embodiment of this application, the first connecting rod 132 and the third connecting rod 162 are respectively crank rod structures.

[0054] The above approach allows for full utilization of the available space structure, avoids interference during mutual transmission, achieves the required connection relationship, and makes the cooperation between them more coordinated, thereby improving the reliability of the cooperation.

[0055] like Figure 5 and Figure 7 As shown, in an optional embodiment of this application, a locking protrusion 122 and a locking groove 138 are respectively provided between the torsion member 120 and the rotation member 130, so that the torsion member 120 and the rotation member 130 are connected by the locking protrusion 122 and the locking groove 138.

[0056] Specifically, the locking protrusion 122 can be provided on the torsion member 120, and the locking groove 138 can be provided on the rotation member 130 to achieve the required locking relationship. It is understandable that the locking protrusion 122 can also be provided on the rotation member 130, and the locking groove 138 can be provided on the torsion member 120, so that the torsion member 120 and the rotation member 130 are connected through the locking protrusion 122 and the locking groove 138.

[0057] In an optional embodiment of this application, the rotation angle of the torsion member 120 is greater than or equal to 90°. It is understood that the operating mechanism 100 provided in this embodiment achieves a 90° rotation of the torsion member 120 corresponding to a 90° rotation of the rotating shaft 150 via a four-bar linkage. In practical applications, the rotation angle of the torsion member 120 can be greater than 90° to facilitate overtravel during closing, thereby ensuring the reliability of closing.

[0058] like Figure 8 As shown in the illustration, this application also discloses a rotary switch 200, including the operating mechanism 100 in the foregoing embodiments and an on / off device 210 connected to the rotating shaft 150 of the operating mechanism 100. The rotary switch 200 has the same structure and beneficial effects as the operating mechanism 100 in the foregoing embodiments. The structure and beneficial effects of the operating mechanism 100 have been described in detail in the foregoing embodiments and will not be repeated here.

[0059] 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 (100), characterized in that, The operating mechanism (100) is applied to the rotary switch to drive the moving contact in the rotary switch to rotate. It includes a side plate (110), a torsion member (120) rotatably connected to the side plate (110), and a rotating member (130) coaxially arranged with the torsion member (120). The torsion member (120) drives the rotating member (130) to rotate. A first connecting rod (132) is rotatably connected to the rotating member (130). A connecting frame (140) is connected to the end of the first connecting rod (132) away from the rotating member (130). The connecting frame (140) is capable of connecting... The side plate (110) is rotated by a preset angle. A rotating shaft (150) is also rotatably provided on the side plate (110). The rotating shaft (150) is connected to the connecting frame (140) through a locking link assembly (160). The rotating member (130), the first link (132), the connecting frame (140) and the side plate (110) form a four-bar linkage. When the torsion member (120) drives the connecting frame (140) to rotate relative to the side plate (110), the rotation angle of the torsion member (120) is greater than the rotation angle of the connecting frame (140).

2. The operating mechanism (100) according to claim 1, characterized in that, The rotating component (130) includes a rotating body (134) and a support arm (136) disposed on the rotating body (134). One end of the first connecting rod (132) is rotatably connected to the support arm (136) and the other end is rotatably connected to the connecting frame (140).

3. The operating mechanism (100) according to claim 2, characterized in that, The connecting frame (140) includes a support frame (142) and a second connecting rod (144) connected to each other. One end of the second connecting rod (144) is fixedly connected to the support frame (142), and the other end is rotatably connected to the first connecting rod (132).

4. The operating mechanism (100) according to claim 3, characterized in that, The support frame (142) includes a support body (1422), and a first connecting arm (1424) and a second connecting arm (1426) disposed on the support body (1422). The first connecting arm (1424), the support body (1422), and the second connecting arm (1426) together form a U-shaped structure. The side plate (110) includes two oppositely disposed side plates. The side plate (110) is provided with an arc-shaped groove. The first connecting arm (1424) and the second connecting arm (1426) respectively abut against the corresponding arc-shaped groove.

5. The operating mechanism (100) according to claim 3 or 4, characterized in that, The locking linkage assembly (160) includes a third link (162) rotatably connected to the rotating shaft (150) and a mounting bracket (164) rotatably connected to the side plate (110). A connecting shaft (170) is provided at the end of the third link (162) away from the rotating shaft (150). A fourth link (166) is engaged between the mounting bracket (164) and the connecting shaft (170). An elastic element (168) is connected between the connecting shaft (170) and the support frame (142). The rotating shaft (150), the mounting bracket (164), the third link (162), and the fourth link (166) form a four-bar linkage mechanism.

6. The operating mechanism (100) according to claim 5, characterized in that, A connecting block (152) is provided on the side wall of the rotating shaft (150), and the third connecting rod (162) is rotatably connected to the rotating shaft (150) through the connecting block (152).

7. The operating mechanism (100) according to claim 4, characterized in that, The two side plates (110) are arranged parallel to each other at intervals, and the two side plates (110) are connected by a positioning shaft (112).

8. The operating mechanism (100) according to claim 5, characterized in that, The first connecting rod (132) and the third connecting rod (162) are both crank rod structures.

9. The operating mechanism (100) according to any one of claims 1-4, characterized in that, A locking protrusion (122) and a locking groove (138) are respectively provided between the torsion member (120) and the rotation member (130) so that the torsion member (120) and the rotation member (130) are connected through the locking protrusion (122) and the locking groove (138).

10. The operating mechanism (100) according to any one of claims 1-4, characterized in that, The rotation angle of the torsion member (120) is greater than or equal to 90°.

11. A rotary switch, characterized in that, It includes the operating mechanism (100) according to any one of claims 1-10, and the switching device connected to the rotating shaft (150) of the operating mechanism (100).

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