Electric actuator switching mechanism with priority of manual operation
By designing a manual priority electric actuator switching mechanism, the contact state between the switching assembly and the micro switch is used to control the start and stop of the electric actuator, the problem of the manual turntable rotating violently when the electric actuator outputs torque is solved, and the user's Security.
Patent Information
- Application Number
- CN202421027452.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-11
AI Technical Summary
In mechanical devices, when a person holds a manual turntable for manual control, the electric actuator can easily cause the manual turntable to rotate violently when the torque is outputted by the electric actuator, threatening the safety of the operator.
Design a manual priority electric actuator switching mechanism to control the start and stop of the electric actuator by setting the output component, the manual execution component and the electric actuator in the case, and using the contact state of the switching component to the micro switch, ensuring that the start and stop of the electric actuator is When the manual execution component is connected to the output component, the electric execution component is powered off to avoid the electric execution component from causing the manual execution component action.
It effectively reduces the chance that the electric execution component and the manual execution component are connected to the output component at the same time, and reduces the chance that the electric execution component can drive manual execution of component actions, thereby improving the safety of the user.
Smart Images
Figure CN222502858U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of mechanical transmission mechanisms, and in particular to a manual priority electric actuator switching mechanism. Background Art
[0002] In mechanical devices, outputting torque through the output shaft to drive the driven parts to move is a common form of transmission. According to actual needs, mechanical designers can choose to drive the output shaft to rotate manually or electrically.
[0003] In some mechanical devices, users can drive the output shaft to rotate manually or electrically. The electric drive device includes a motor, which is connected to the output shaft. The motor can drive the output shaft to rotate, thereby achieving the effect of electric drive. The manual drive mechanism includes a manual turntable and a manual output shaft. The manual output shaft is rotatably connected to the machine, and the manual turntable is fixed to the end of the manual output shaft. The user pushes the manual output shaft so that the end of the manual output shaft is connected to the output shaft through a coupling. The rotation of the output shaft can be accurately controlled by turning the manual turntable. Manual drive can accurately control the forward and reverse rotation of the output shaft according to the mechanical state, which is convenient for control.
[0004] The above-mentioned related technical solutions have the following defects: when the user performs manual control, the user holds the manual turntable with his hand. When the electric actuator is connected to the output shaft and outputs torque, the manual turntable is likely to rotate violently and threaten the personal safety of the operator, causing risks. Utility Model Content
[0005] In order to improve the safety when the user manually drives the output shaft to rotate, the present application provides a manual priority electric actuator switching mechanism.
[0006] The manual priority electric actuator switching mechanism provided in this application adopts the following technical solution:
[0007] A manual-priority electric actuator switching mechanism comprises a casing, an output assembly, a manual actuator assembly and an electric actuator assembly, wherein the output assembly, the manual actuator assembly and the electric actuator assembly are mounted in the casing, the electric actuator assembly is connected to the output assembly, the manual actuator assembly and the output assembly are detachably connected, a switching assembly is arranged on the casing, the switching assembly is snap-connected to the manual actuator assembly, a micro switch is arranged in the casing, the micro switch is used to control the start and stop of the electric actuator assembly, when the manual actuator assembly is connected to the output assembly, the switching assembly remains disconnected from the micro switch, and when the manual actuator assembly is disconnected from the output assembly, the switching assembly remains in contact with the micro switch.
[0008] By adopting the above technical solution, an output component is arranged in the casing, so that the output component is connected to the electric actuator component, and the electric actuator component can drive the output component to move. At this time, the switching component remains in contact with the micro switch. When the user controls the movement of the switching component, the switching component can be disconnected from the micro switch. At this time, the electric actuator component remains in a power-off state, and the user can control the manual actuator component to be connected to the output component. When the manual actuator component is connected to the output component, the switching component cannot contact the micro switch, so the electric actuator component cannot drive the output component to move, which has the effect of protecting the user and can reduce the probability of the electric actuator component and the manual actuator component being connected to the output component at the same time, thereby reducing the probability of the electric actuator component driving the manual actuator component to move.
[0009] Optionally, the output assembly includes a worm gear, an output shaft and a transmission worm, the transmission worm is rotatably connected in the casing, the output shaft passes through the casing and is rotatably connected to the casing, the worm gear is coaxially connected to the output shaft, the worm gear is meshed with the transmission worm, one end of the transmission worm is connected to the electric actuator assembly, and the other end is detachably connected to the manual actuator assembly.
[0010] By adopting the above technical solution, by arranging a worm wheel on the output shaft so that the worm wheel meshes with the transmission worm, both the electric actuator assembly and the manual actuator assembly can drive the transmission worm to rotate, thereby rotating the output shaft and outputting power.
[0011] Optionally, the manual actuator assembly includes a manual turntable and a manual output shaft. The manual output shaft is coaxially arranged with the transmission worm. The manual output shaft passes through the casing. The manual turntable is fixed to one end of the manual output shaft outside the casing. The manual output shaft is used to slide along the length direction and be clamped with the end of the transmission worm.
[0012] By adopting the above technical solution, a manual output shaft is arranged on the casing so that the manual output shaft can rotate on the casing and slide along the length direction. By pushing the manual output shaft, the user can make the end of the manual output shaft abut against the end of the transmission worm, thereby maintaining a transmission connection between the manual output shaft and the transmission worm.
[0013] Optionally, a compression spring is sleeved on the manual output shaft, one end of the compression spring abuts against the manual output shaft, and the other end abuts against the housing, and the compression spring is used to disconnect the manual output shaft from the transmission worm in a natural state.
[0014] By adopting the above technical solution, a compression spring is arranged on the manual output shaft so that the compression spring can push the manual output shaft, thereby allowing the manual output shaft to remain disconnected from the transmission worm in a natural state, thereby reducing the probability of the manual output shaft being connected to the transmission worm when the electric actuator drives the output shaft to rotate, and reducing the probability of the manual turntable rotating and injuring the user.
[0015] Optionally, the switching assembly includes a rotating rod, a shift block and a touch rod, the rotating rod passes through the casing and is rotatably connected to the casing, the shift block and the touch rod are fixed on one end of the rotating rod located inside the casing, an annular groove 1 and annular groove 2 are provided on the manual output shaft, the shift block is used to be inserted into annular groove 1 or annular groove 2, when the manual output shaft is disconnected from the transmission worm, the shift block is located in annular groove 1, and when the manual output shaft is connected to the transmission worm, the shift block is located in annular groove 2.
[0016] By adopting the above technical solution, a rotating rod is arranged on the casing, and the user can control the position of the shift block and the touch rod by rotating the rotating rod. When the shift rod is inserted into the annular groove 1 or the annular groove 2, the shift block can clamp the manual output shaft, so that the manual output shaft cannot slide on the casing along the length direction. The user needs to rotate the rotating rod and adjust the position of the shift block to control the sliding of the manual output shaft, thereby improving the safety of use.
[0017] Optionally, a torsion spring is sleeved on the rotating rod, and the torsion spring is used to make the shift block always abut against the manual output shaft in a natural state.
[0018] By adopting the above technical solution, a torsion spring is sleeved on the rotating rod, so that the shift rod can abut against the side wall of the manual output shaft under the drive of the torsion spring. When the shift block is inserted into the annular groove one or the annular groove two, the probability of the shift block falling out of the annular groove can be reduced, thereby keeping the position of the manual output shaft stable.
[0019] Optionally, the rotating rod has a smaller diameter at one annular groove and a larger diameter at another annular groove. When the shift block is inserted into the first annular groove, the contact rod contacts the micro switch and energizes the electric actuator component. When the shift block is inserted into the second annular groove, a gap exists between the contact rod and the micro switch.
[0020] By adopting the above technical solution, by opening annular groove 1 and annular groove 2 of different depths on the manual output shaft, the positions of the shift block and the contact rod are different when the shift block is inserted into the annular groove 1 or the annular groove 2, so that the contact rod can only trigger the micro switch when the manual output shaft is disconnected from the transmission worm, so that the electric actuator is energized and drives the transmission worm to rotate, thereby improving the safety of use.
[0021] Optionally, a lock hole is provided on the rotating rod, the lock hole is provided on a side of the rotating rod outside the casing, the lock hole is used to install a U-shaped lock, a clamping block is fixed outside the casing, the clamping block is used to clamp the U-shaped lock and keep the shifting block in a stable position.
[0022] By adopting the above technical solution, a lock hole is opened on the rotating rod, and the user can install the U-shaped lock on the rotating rod. When the U-shaped lock is installed on the rotating rod, the U-shaped lock rotates and abuts against the block when the rotating rod is rotated, so that the rotating rod is difficult to rotate significantly. At this time, it is difficult for the shift block to escape from the annular groove 1 or the annular groove 2, so that the connection state between the manual output shaft and the transmission worm is difficult to change, which can reduce the probability of the user accidentally touching and switching the output component drive mode.
[0023] In summary, the beneficial technical effects of this application are:
[0024] 1. By setting an output component in the housing, the output component is connected to the electric actuator component, and the electric actuator component can drive the output component to move. At this time, the switching component remains in contact with the micro switch. When the user controls the switching component to move, the switching component can be disconnected from the micro switch. At this time, the electric actuator component remains in a power-off state. The user can control the manual actuator component to connect with the output component. When the manual actuator component is connected to the output component, the switching component cannot contact the micro switch, so the electric actuator component cannot drive the output component to move, which plays an effect of protecting the user, and can reduce the probability of the electric actuator component and the manual actuator component being connected to the output component at the same time, thereby reducing the probability of the electric actuator component driving the manual actuator component to move;
[0025] 2. By providing annular groove 1 and annular groove 2 of different depths on the manual output shaft, the positions of the shift block and the contact rod are different when the shift block is inserted into the annular groove 1 or the annular groove 2, so that the contact rod can only touch the micro switch when the manual output shaft is disconnected from the transmission worm, so that the electric actuator is energized and drives the transmission worm to rotate, thereby improving the safety of use;
[0026] 3. By opening a lock hole on the rotating rod, the user can install the U-shaped lock on the rotating rod. When the U-shaped lock is installed on the rotating rod, the U-shaped lock rotates and abuts against the block when the rotating rod is rotated, so that the rotating rod is difficult to rotate significantly. At this time, it is difficult for the shift block to escape from the annular groove 1 or the annular groove 2, making it difficult to change the connection state between the manual output shaft and the transmission worm, which can reduce the probability of users accidentally touching and switching the output component drive mode. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.
[0028] Figure 2 It is a schematic diagram of the structure of the output component of an embodiment of the present application.
[0029] Figure 3 It is a cross-sectional view of an embodiment of the present application.
[0030] Figure 4 It is a schematic diagram of the positional relationship between the transmission worm and the manual output shaft in an embodiment of the present application.
[0031] Figure 5 This is a schematic diagram of the structure of the switching component of the embodiment of the present application. Figure 1 .
[0032] Figure 6 This is a schematic diagram of the structure of the switching component of the embodiment of the present application. Figure 2 .
[0033] Figure 7 It is a schematic diagram of the position relationship of the card blocks in the embodiment of the present application.
[0034] Figure numerals: 1. housing; 11. end cover; 2. output assembly; 21. worm gear; 22. output shaft; 23. transmission worm; 231. connecting block; 3. manual actuator assembly; 31. manual turntable; 32. manual output shaft; 321. connecting groove; 322. compression spring; 323. annular groove one; 324. annular groove two; 4. electric actuator assembly; 5. switching assembly; 51. rotating rod; 511. horizontal part; 512. vertical part; 513. locking hole; 514. card block; 52. dial block; 53. touch rod; 54. torsion spring; 6. micro switch. DETAILED DESCRIPTION
[0035] The present application is further described in detail below in conjunction with the accompanying drawings.
[0036] The present application embodiment discloses a manual priority electric actuator switching mechanism, referring to Figure 1 , Figure 2 and Figure 3 , including a housing 1, an output component 2, a manual actuator component 3, an electric actuator component 4 and a switching component 5. The output component 2, the manual actuator component 3, the electric actuator component 4 and the switching component 5 are installed in the housing 1. The output component 2 is used to output torque. The manual actuator component 3 is detachably connected to the output component 2. When the manual actuator component 3 is connected to the output component 2, the user can manually control the value of the output torque through the manual actuator component 3. The electric actuator component 4 is connected to the output component 2. A motor is arranged in the electric actuator component 4. The motor drives the output component 2 to move by power supply. The switching component 5 is used to drive the manual actuator component 3 to move in the housing 1, so that the manual actuator component 3 is connected to the output component 2.
[0037] Reference Figure 1 , Figure 2 and Figure 3, the housing 1 is connected to an end cover 11, and the manual actuator component 3 and the switching component 5 are installed on the end cover 11. The output component 2 includes a worm wheel 21, an output shaft 22 and a transmission worm 23, the transmission worm 23 is rotatably connected in the housing 1, the output shaft 22 passes through the housing 1 and is rotatably connected to the housing 1, the worm wheel 21 is coaxially connected to the output shaft 22, and the worm wheel 21 is meshed with the transmission worm 23. One end of the transmission worm 23 is connected to the electric actuator component 4, and the other end is detachably connected to the manual actuator component 3. The electric actuator component 4 can be set as a motor without a self-locking function, and the output shaft of the motor is coaxially connected to the transmission worm 23. When the electric actuator component 4 or the manual actuator component 3 drives the transmission worm 23 to rotate, the output shaft 22 can rotate synchronously and output torque.
[0038] Reference Figure 4 The manual actuator assembly 3 includes a manual turntable 31 and a manual output shaft 32. The manual output shaft 32 passes through the end cover 11 and is rotatably connected to the end cover 11. The manual output shaft 32 can slide relative to the end cover 11 along the length direction. The manual turntable 31 is coaxially connected to the end of the manual output shaft 32 located outside the housing 1. The manual output shaft 32 is coaxially arranged with the transmission worm 23. Two connecting blocks 231 are connected to the end of the transmission worm 23 close to the manual output shaft 32. The connecting blocks 231 are cylindrical structures. The two connecting blocks 231 are respectively fixed on both sides of the side wall of the transmission worm 23. The length direction of the connecting blocks 231 is perpendicular to the length direction of the transmission worm 23. The length directions of the two connecting blocks 231 overlap and pass through the axis of the transmission worm 23. A connecting groove 321 is provided on the manual output shaft 32 close to the transmission worm 23. The end of the transmission worm 23 and the connecting block 231 can be inserted into the connecting groove 321 and clamped with the manual output shaft 32. The switching component 5 can push the manual output shaft 32 to engage the manual output shaft 32 with the end of the transmission worm 23, thereby connecting the manual output shaft 32 to the transmission worm 23. At this time, the user rotates the manual turntable 31 to rotate the manual output shaft 32 and the transmission worm 23, thereby achieving the effect of controlling the rotation of the output shaft 22.
[0039] Reference Figure 4 The manual output shaft 32 is sleeved with a compression spring 322, one end of the compression spring 322 abuts against the manual output shaft 32, and the other end abuts against the end plate in the housing 1. The compression spring 322 is used to push the manual output shaft 32, so that the manual output shaft 32 can automatically slide in a direction away from the transmission worm 23, so that the manual output shaft 32 and the transmission worm 23 can be automatically disconnected. When the user rotates the manual turntable 31, the manual output shaft 32 can rotate relative to the compression spring 322, thereby reducing the amount of torsional force on the compression spring 322 and increasing the service life of the compression spring 322.
[0040] Reference Figure 5 and Figure 6A micro switch 6 is arranged in the housing 1, and the micro switch 6 is connected in series to the power circuit where the electric actuator 4 is located. The switching component 5 can contact the spring of the micro switch 6, so that the electric actuator 4 is powered off. When the manual actuator 3 is connected to the output component 2, the switching component 5 is disconnected from the micro switch 6, so that the electric actuator 4 is powered off. At this time, the user can manually control the action of the output component 2.
[0041] Reference Figure 5 and Figure 6 The switching assembly 5 includes a rotating rod 51, a shifting block 52 and a contact rod 53. The rotating rod 51 includes a horizontal portion 511 and a vertical portion 512. The horizontal portion 511 and the vertical portion 512 are formed by bending a rod. The horizontal portion 511 and the vertical portion 512 are perpendicular to each other. The horizontal portion 511 passes through the end cover 11 and is rotatably connected to the end cover 11. The horizontal portion 511 is parallel to the length direction of the manual output shaft 32. The vertical portion 512 is arranged on one side of the end cover 11 close to the manual turntable 31. The shifting block 52 is fixedly connected to the horizontal portion 511, and the contact rod 53 is fixedly connected to the shifting block 52. By shifting the vertical portion 512, the user can make the horizontal portion 511 drive the shifting block 52 and the contact rod 53 to rotate. The micro switch 6 is installed in the housing 1, and the contact rod 53 is used to abut against the spring of the micro switch 6 and close the micro switch 6 to energize.
[0042] Reference Figure 5 and Figure 6 The manual output shaft 32 is provided with an annular groove 1 323 and an annular groove 2 324. The annular groove 1 323 and the annular groove 2 324 are provided on the side wall of the manual output shaft 32. The annular groove 1 323 and the annular groove 2 324 are both coaxially arranged with the manual output shaft 32. The annular groove 1 323 is closer to the connecting groove 321, and the annular groove 2 324 is farther from the connecting groove 321. The shift block 52 can be stuck in the annular groove 1 323 or the annular groove 2 324, so that the position of the manual output shaft 32 on the end cover 11 is stable, and the probability of the manual output shaft 32 slipping along the length direction is reduced.
[0043] Reference Figure 5 and Figure 6When the manual actuator 3 is disconnected from the output assembly 2, the manual output shaft 32 is far away from the transmission worm 23. At this time, the shift block 52 is inserted into the annular groove 1 323, and the user cannot push the manual output shaft 32 to slide, and the manual output shaft 32 cannot be engaged with the transmission worm 23. When the shift block 52 is inserted into the annular groove 1 323, the contact rod 53 abuts against the micro switch 6, and the electric actuator 4 is powered on and drives the transmission worm 23 to rotate. The user rotates the rotating rod 51 to make the shift block 52 disengage from the annular groove 1 323. At this time, the contact rod 53 is disconnected from the micro switch 6, and the electric actuator 4 is powered off. The user can push the manual output shaft 32 to engage the manual output shaft 32 with the transmission worm 23. At this time, the user rotates the rotating rod 51 to make the shift block 52 inserted into the annular groove 2 324. The manual output shaft 32 remains engaged with the transmission worm 23, and the user can control the output assembly 2 through the manual turntable 31.
[0044] Reference Figure 5 and Figure 6 The diameter of the manual output shaft 32 at the annular groove 1 323 is smaller, and the diameter of the manual output shaft 32 at the annular groove 2 324 is larger. When the shift block 52 is inserted into the annular groove 1 323, the rotation amplitude of the rotating rod 51 is larger, and the contact rod 53 can contact the micro switch 6. When the shift block 52 is inserted into the annular groove 2 324, the rotation amplitude of the rotating rod 51 is smaller, and there is a gap between the contact rod 53 and the micro switch 6, so that the electric actuator 4 remains in the power-off state, and the driving of the transmission worm 23 is completed by the manual actuator 3.
[0045] Reference Figure 5 and Figure 6 The rotating rod 51 is sleeved with a torsion spring 54, which is installed on the horizontal portion 511 and located in the housing 1. One end of the torsion spring 54 is fixed to the horizontal portion 511, and the other end is fixed to the inner wall of the housing 1. The torsion spring 54 is used to keep the shift block 52 in contact with the manual output shaft 32 in the natural state of the rotating rod 51. When the user rotates the rotating rod 51 to move the shift block 52 away from the manual output shaft 32, the torsion spring 54 is deformed and accumulates elastic potential energy. The torsion spring 54 plays an automatic reset effect, which can reduce the probability of the shift block 52 coming out of the annular groove 1 323 or the annular groove 2 324.
[0046] Reference Figure 7The rotating rod 51 is provided with a lock hole 513, which is provided on the side where the horizontal portion 511 extends out of the housing 1. A clamping block 514 is fixed on the end cover 11, and the user can install the U-shaped lock in the lock hole 513. At this time, the U-shaped lock is located on one side of the clamping block 514. When the user rotates the rotating rod 51, the U-shaped lock abuts against the clamping block 514, and the shifting block 52 cannot be disengaged from the annular groove 1 323 or the annular groove 2 324, so that the connection relationship between the output component 2 and the manual actuator component 3 or the electric actuator component 4 cannot be switched.
[0047] The implementation principle of the embodiment of the present application is: by arranging the output component 2, the manual execution component 3 and the electric execution component 4 in the housing 1, the manual execution component 3 and the electric execution component 4 can be connected to the output component 2 and drive the output shaft 22 to rotate; by arranging the switching component 5 on the housing 1, the user can make the shift block 52 respectively engage in the annular groove 1 323 or the annular groove 2 324 by rotating the rotating rod 51, so that the manual output shaft 32 can maintain a state of being connected or disconnected from the transmission worm 23, so that the user can switch the driving mode of the output shaft 22 according to the use needs.
[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A manual priority electric actuator switching mechanism, characterized in that: The invention comprises a housing (1), an output assembly (2), a manual actuating assembly (3) and an electric actuating assembly (4), wherein the output assembly (2), the manual actuating assembly (3) and the electric actuating assembly (4) are installed in the housing (1), the electric actuating assembly (4) is connected to the output assembly (2), and the manual actuating assembly (3) is detachably connected to the output assembly (2). A switching assembly (5) is arranged on the housing (1), and the switching assembly (5) is snap-connected to the manual actuating assembly (3). A micro switch (6) is arranged in the housing (1), and the micro switch (6) is used to control the start and stop of the electric actuating assembly (4). When the manual actuating assembly (3) is connected to the output assembly (2), the switching assembly (5) remains disconnected from the micro switch (6), and when the manual actuating assembly (3) is disconnected from the output assembly (2), the switching assembly (5) remains in contact with the micro switch (6).
2. The manual priority electric actuator switching mechanism according to claim 1, characterized in that: The output assembly (2) comprises a worm wheel (21), an output shaft (22) and a transmission worm (23); the transmission worm (23) is rotatably connected in the housing (1); the output shaft (22) passes through the housing (1) and is rotatably connected to the housing (1); the worm wheel (21) is coaxially connected to the output shaft (22); the worm wheel (21) meshes with the transmission worm (23); one end of the transmission worm (23) is connected to the electric actuator assembly (4); and the other end is detachably connected to the manual actuator assembly (3).
3. The manual priority electric actuator switching mechanism according to claim 2, characterized in that: The manual actuator assembly (3) comprises a manual turntable (31) and a manual output shaft (32); the manual output shaft (32) is coaxially arranged with the transmission worm (23); the manual output shaft (32) passes through the housing (1); the manual turntable (31) is fixed to one end of the manual output shaft (32) located outside the housing (1); the manual output shaft (32) is used to slide along the length direction and be clamped with the end of the transmission worm (23).
4. The manual priority electric actuator switching mechanism according to claim 3, characterized in that: The manual output shaft (32) is sleeved with a compression spring (322), one end of the compression spring (322) abuts against the manual output shaft (32), and the other end abuts against the inside of the housing (1), and the compression spring (322) is used to disconnect the manual output shaft (32) from the transmission worm (23) in a natural state.
5. The manual priority electric actuator switching mechanism according to claim 3, characterized in that: The switching assembly (5) comprises a rotating rod (51), a shifting block (52) and a contact rod (53); the rotating rod (51) passes through the housing (1) and is rotatably connected to the housing (1); the shifting block (52) and the contact rod (53) are fixed to one end of the rotating rod (51) located inside the housing (1); a first annular groove (323) and a second annular groove (324) are formed on the manual output shaft (32); the shifting block (52) is used to be inserted into the first annular groove (323) or the second annular groove (324); when the manual output shaft (32) is disconnected from the transmission worm (23), the shifting block (52) is located in the first annular groove (323); when the manual output shaft (32) is connected to the transmission worm (23), the shifting block (52) is located in the second annular groove (324).
6. The manual priority electric actuator switching mechanism according to claim 5, characterized in that: The rotating rod (51) is sleeved with a torsion spring (54), which is used to make the shift block (52) always abut against the manual output shaft (32) in a natural state.
7. The manual priority electric actuator switching mechanism according to claim 5, characterized in that: The diameter of the rotating rod (51) is smaller at the annular groove one (323), and the diameter of the rotating rod (51) is larger at the annular groove two (324). When the shift block (52) is inserted into the annular groove one (323), the contact rod (53) contacts the micro switch (6) and energizes the electric actuator assembly (4). When the shift block (52) is inserted into the annular groove two (324), a gap exists between the contact rod (53) and the micro switch (6).
8. The manual priority electric actuator switching mechanism according to claim 5, characterized in that: The rotating rod (51) is provided with a lock hole (513), the lock hole (513) being provided on a side of the rotating rod (51) located outside the housing (1), the lock hole (513) being used to install a U-shaped lock, and a clamping block (514) being fixed outside the housing (1), the clamping block (514) being used to clamp the U-shaped lock and keep the position of the shifting block (52) stable.