An electric operating device

Abstract

The present invention discloses an electric operating device, comprising: a box body, an operating mechanism installed inside the box body, and a slider linked with the operating mechanism. The slider is used to connect with the handle of a circuit breaker. The operating mechanism acts to drive the slider to act, and the slider's action drives the handle of the circuit breaker to act to realize the opening and closing operations of the circuit breaker. The operating mechanism can be driven to act by a manual control driving lock or a remote electric control driving structure. The electric operating device further includes a safety protection structure and a safety locking mechanism. The safety protection structure is also provided with a locking structure, and the locking structure is used to lock the safety protection structure. By the above means, the present invention enables the operating mechanism not to be randomly switched from the remote electric control operation mode to the manual operation mode, and when in the manual operation mode, the remote electric control operation mode cannot be enabled simultaneously. In addition, when the circuit breaker is in the tripped state, the operating mechanism cannot be driven to act, so as to improve the use safety of the device.

Description

Technical Field

[0001] The present invention relates to the field of circuit breaker control devices, and particularly to an electric operating device. Background Art

[0002] At present, under abnormal working conditions, a low-voltage circuit breaker is required to automatically cut off the circuit to protect electrical appliances. Therefore, an electric operating device needs to be installed to realize timely opening and closing operations.

[0003] Among them, the operating mechanism is the core component in the electric operating device. The operating mechanism is linked with the slider for installing the circuit breaker handle. The operating mechanism drives the slider to move, and then drives the circuit breaker handle to make the circuit breaker perform opening and closing operations.

[0004] The operating mechanism can be controlled to act through a manual operation mode or a remote electric control operation mode. To ensure operation safety, generally, the manual operation mode and the remote electric control operation mode cannot be enabled simultaneously and can only be selected for use. That is, when on-site maintenance personnel start the manual operation mode, the remote electric control operation mode cannot be started, otherwise it will cause safety accidents to maintenance personnel.

[0005] However, the existing operating mechanism does not have a safety protection structure and cannot ensure that the remote electric control operation mode is not started when in the manual operation mode.

[0006] In addition, it is also found in the actual use process that when the circuit breaker is disconnected by pressing down the test switch through the safety lock, the operating mechanism can still be misoperated to drive the action, which is likely to cause danger. Summary of the Invention

[0007] The main technical problem to be solved by the present invention is to provide an electric operating device, which can make the remote electric control operation mode ineffective when the operating mechanism is in the manual operation mode, and at the same time, when the test switch of the circuit breaker is pressed down, the operating mechanism cannot be driven to act, improving operation safety.

[0008] To solve the above technical problem, a technical solution adopted by the present invention is: to provide an electric operating device, including: a box body, an operating mechanism installed in the box body, and a slider linked with the operating mechanism, the slider is used to connect with the handle of the circuit breaker, the operating mechanism drives the slider to move, and the movement of the slider drives the handle of the circuit breaker to move to realize the opening and closing operations of the circuit breaker, and the operating mechanism can be driven to act through a manual control driving lock or a remote electric control driving structure.

[0009] The electric operating device further includes a safety protection structure and a safety locking mechanism.

[0010] The safety protection structure includes: a cover plate and a microswitch disposed below the edge of the cover plate. The cover plate is disposed above the manual control drive lock of the electric operating device. When the cover plate covers the manual control drive lock, the cover plate contacts the microswitch, triggering the microswitch to energize the remote electric control drive structure;

[0011] When the cover plate is opened from the manual control drive lock, the cover plate is separated from the microswitch, and the microswitch resets and loses power to cut off the power supply of the remote electric control drive structure.

[0012] The safety protection structure is further provided with a locking structure for locking and closing the cover plate on the manual control drive lock;

[0013] The safety locking mechanism is disposed on the side of the slider for pressing down the test switch on the circuit breaker and capable of locking the movement of the slider.

[0014] In a preferred embodiment of the present invention, the locking structure includes a lock catch disposed on the upper end panel of the box body and a lock opening formed on the cover plate and cooperating with the lock catch.

[0015] In a preferred embodiment of the present invention, the safety locking mechanism includes: a pressing structure for pressing down the test switch of the circuit breaker and a safety lock for controlling the action of the pressing structure.

[0016] In a preferred embodiment of the present invention, the pressing structure includes a rotating shaft, a sliding plate, a lever, and a pressing column. A first protrusion capable of pushing the sliding plate to move in alignment is provided on the rotating shaft, and a second protrusion capable of blocking the movement of the slider in alignment is also provided on the rotating shaft. The safety lock is fixedly connected to the rotating shaft, and the rotation of the safety lock drives the rotation of the rotating shaft. When the safety lock is in the unlocked state, the first protrusion pushes the sliding plate to move in alignment, and the sliding plate pushes one end of the lever in contact with it to move upward, causing the other end of the lever fixed with the pressing column to drive the pressing column to move downward to press the test switch. At this time, the second protrusion blocks the slider from moving in the closing direction in alignment.

[0017] In a preferred embodiment of the present invention, the operating mechanism includes a drive shaft, a flange fixed to the upper end of the drive shaft, a large disc fixed to the shaft body of the drive shaft, a cam fixed to the lower end of the drive shaft, and a pulley fixed to the cam. The pulley rotates synchronously with the cam for pushing the slider in contact with the pulley to move, thereby driving the handle to act.

[0018] In a preferred embodiment of the present invention, the manual control drive lock is formed on the flange.

[0019] In a preferred embodiment of the present invention, the remote electric control drive structure includes a remote control circuit, a motor connected to the remote control circuit, and a gearbox connected to the motor. The final transmission gear in the gearbox contacts a large disc on the operating mechanism, and the motor is driven to operate by a terminal controller through the remote control circuit.

[0020] In a preferred embodiment of the present invention, a partition is provided in the middle of the box body, and a fixing plate is provided at the bottom. The motor is fixed on the fixing plate, and the gearbox is fixed on the partition.

[0021] In a preferred embodiment of the present invention, the gearbox adopts a three-stage transmission gearbox.

[0022] In a preferred embodiment of the present invention, the housing of the gearbox is a plastic housing integrally injection-molded from a plastic material.

[0023] In a preferred embodiment of the present invention, mounting holes are further provided on the housing of the gearbox, and the mounting holes are used for mounting the drive shaft of the operating mechanism.

[0024] The beneficial effects of the present invention are as follows: The present invention adopts a safety protection structure and a safety locking mechanism, so that when the operating mechanism is in the manual operation mode, the remote electric control operation mode does not work. At the same time, when the test switch of the circuit breaker is pressed down, the operating mechanism cannot be driven to operate either. In addition, a locking structure is provided on the safety protection structure, which can lock and cover the cover plate in the protection structure on the hand control drive lock, so that the operating mechanism cannot be randomly switched from the remote electric control operation mode to the manual operation mode, improving the operation safety. Description of the Drawings

[0025] Figure 1 is the overall structural schematic diagram of the electric operating device;

[0026] Figure 2 is the first internal structural schematic diagram of the electric operating device;

[0027] Figure 3 is the second internal structural schematic diagram of the electric operating device;

[0028] Figure 4 is the third internal structural schematic diagram of the electric operating device;

[0029] Figure 5 is the fourth internal structural schematic diagram of the electric operating device;

[0030] Figure 6 is the assembly structural schematic diagram of the partition and the gearbox housing;

[0031] Figure 7 is the structural schematic diagram of the gearbox housing;

[0032] Figure 8 It is a schematic structural diagram of a partition board;

[0033] The markings of each component in the attached drawings are as follows:

[0034] 1. Box body, 11. Fixed plate, 12. Partition board, 121. Guide rail, 122. Positioning hole, 123. Lock hole, 13. Panel; 2. Operating mechanism, 21. Driving shaft, 22. Flange, 23. Large disc, 24. Cam, 25. Pulley; 3. Slide block; 4. Manual control driving lock; 5. Remote electric control driving structure, 51. Motor, 511. Motor driving gear, 52. Gear box, 521. Gear box housing, 5211. Housing body, 5212. Concave cavity, 5213. Positioning rod, 5214. Lock rod, 5215. Positioning boss, 5216. Avoidance notch, 5217. Mounting hole; 6. Protection structure, 61. Cover plate, 62. Microswitch; 7. Safety locking mechanism, 71. Safety lock, 72. Rotating shaft, 721. First protrusion, 722. Second protrusion, 73. Slide plate, 74. Lever, 75. Pressure column; 8. Locking structure, 81. Lock catch, 82. Lock opening. Specific implementation manners

[0035] Please refer to Figure 1 , the embodiments of the present invention include:

[0036] An electric operating device can perform reset operation, closing operation and opening operation on a circuit breaker in a manual operation mode and a remote electric control operation mode;

[0037] As Figures 2 to 5 shown, the electric operating device includes a box body 1, an operating mechanism 2 installed in the box body 1 and a slide block 3 linked with the operating mechanism 2. A fixed plate 11 is provided at the bottom of the box body 1, and the electric operating device is connected to the circuit breaker through the fixed plate 11. A partition board 12 is provided in the middle of the box body 1. The slide block 3 is slidably arranged on a guide rail 121 on the partition board 12. The slide block 3 is used to connect with the handle of the circuit breaker. The operating mechanism 2 acts to drive the slide block 3 to act, and the slide block 3 acts to drive the handle of the circuit breaker to act to realize the closing and opening operations of the circuit breaker;

[0038] Among them, the operating mechanism 2 can be driven to act through a manual control driving lock 4 or a remote electric control driving structure 5;

[0039] In this embodiment, the operating mechanism 2 includes a driving shaft 21, a flange 22 fixed at the upper end of the driving shaft 21, a large disc 23 fixed on the shaft body of the driving shaft 21, a cam 24 fixed at the lower end of the driving shaft 21, and a pulley 25 fixed on the cam 24. The pulley 25 rotates synchronously with the cam 24 to push the slide block 3 in contact with the pulley 25 to move, and then drive the handle to act;

[0040] Further, the manually controlled driving lock 4 is provided on the flange 22. A key matching the manually controlled driving lock 4 is inserted into the manually controlled driving lock 4, and the key is rotated to drive the driving shaft 21 to rotate. The rotation of the driving shaft 21 drives the cam 24 fixed on the driving shaft 21 to rotate. At this time, the pulley 25 fixed on the cam 24 rotates in place together with the cam 24 (the unlocking state of the manually controlled driving lock 4). At this time, the pulley 25 pushes the slider 3 in contact with the pulley 25 to move back and forth along the guide rail 121, and then drives the handle to act to realize the opening and closing operations;

[0041] The remote electric control driving structure 5 includes a remote control circuit, a motor 51 connected to the remote control circuit, and a gearbox 52 connected to the motor 51. The final transmission gear of the gearbox 52 contacts the large disc 23 on the operating mechanism 2. The motor 51 is driven to act by the terminal controller through the remote control circuit. The motor 51 drives the gearbox 52 to transmit power, and the gearbox 52 drives the large disc 23 to rotate. The rotation of the large disc 23 drives the driving shaft 21 and the cam 24 fixed thereto to rotate. At this time, the pulley 25 fixed on the cam 24 rotates in place together with the cam 24. At this time, the pulley 25 pushes the slider 3 in contact with the pulley 25 to move back and forth along the guide rail 121, and then drives the handle to act to realize the opening and closing operations;

[0042] In this embodiment, the gearbox 52 is installed on the partition plate 12, the motor 51 is installed on the fixing plate 11, a motor transmission gear 511 is fixed on the output shaft of the motor 51, the motor transmission gear 511 meshes with the first-stage transmission gear in the gearbox 52, the final-stage transmission gear in the gearbox 52 contacts the large disc 23, the motor 51 drives the gearbox 52 to transmit power and then drives the large disc 23 to rotate. The rotation of the large disc 23 drives the driving shaft 21 fixed thereto to rotate, the rotation of the driving shaft 21 drives the cam 24 to rotate, and the pulley 25 rotates synchronously with the cam 24 to push the slider 3 to move, and finally drives the handle to act to realize the opening and closing operations;

[0043] Preferably, in this embodiment, the gearbox 52 is a three-stage transmission gearbox.

[0044] Further refer to Figures 6 to 8, in this embodiment, for the convenience of the installation of the gearbox 52 and the positioning and support of the transmission gears in the gearbox 52, the gearbox 52 has a gearbox positioning structure. The gearbox positioning structure includes a gearbox housing 521. The gearbox housing 521 is fixed on the partition 12. The gearbox housing 521 is integrally injection-molded of plastic material. It includes a housing body 5211 and a cavity 5212 located inside the housing body 5211. Three positioning rods 5213 and a locking rod 5214 are provided on the housing body 5211. A plurality of positioning bosses 5215 protruding relative to the upper end face of the housing body 5211 are provided in the cavity 5212. The positioning bosses 5215 are used for limiting and supporting the transmission shafts of the gears located in the cavity 5212.

[0045] Specifically, the positioning rods 5213 are distributed along the edge of the housing body 5211 and cooperate with the positioning holes 122 located on the partition 12; the locking rod 52 extends downward along the lower edge of the housing and cooperates with the locking hole 123 located on the partition 12.

[0046] An avoidance notch 5216 is provided on the side wall of the housing body 5211 close to the motor 51, for enabling the motor drive gear 511 at the output shaft end of the motor 51 to contact and mesh with the first-stage transmission gear in the gearbox 52.

[0047] An installation hole 5217 is also provided on the housing body 5211. The installation hole 5217 is used for installing the drive shaft 21 of the operating mechanism 2.

[0048] In this application, the remote control circuit is controlled to be turned on and off by a signal acquisition element or a microswitch 62.

[0049] Specifically, a panel 13 is provided at the upper end of the box body 1 of the electric operating device. A protection structure 6 for protecting the manual drive lock 4 is provided on the panel 13. The protection structure 6 includes a cover plate 61 and a signal acquisition element or a microswitch 62. The signal acquisition element or the microswitch 62 is used for controlling the on and off of the remote control circuit.

[0050] Further, the signal acquisition element can adopt an optoelectronic sensor for detecting the position of the cover plate 61. When the cover plate 61 covers above the manual drive lock 4, the optoelectronic sensor can detect the in-place signal of the cover plate 61. The optoelectronic sensor feeds the relevant signal back to the terminal controller, and the terminal controller controls the remote control circuit to be powered on. At this time, the remote electric control operation mode can be enabled;

[0051] When the cover plate 61 leaves the manual drive lock 4, the optoelectronic sensor cannot detect the cover plate 61 in place, and the optoelectronic sensor loses the signal to disconnect the remote control circuit. At this time, the manual operation mode can be used.

[0052] Further, continuing to refer to Figure 3 , in this embodiment, a structural design in which a microswitch 62 and a cover plate 61 cooperate with each other is adopted. The microswitch 62 is located below the cover plate 61. When the cover plate 61 is closed on the manual drive lock 4, the cover plate 61 presses on the microswitch 62, triggering the microswitch 62 to be powered on and energizing the remote control circuit. At this time, the remote electric control operation mode can be enabled;

[0053] When the cover plate 61 leaves the manual drive lock 4, the cover plate 61 is separated from the microswitch 62, and the microswitch 62 resets and loses power to disconnect the remote control circuit. At this time, the manual operation mode can be used.

[0054] Specifically, when the remote electric control operation mode needs to be used, the cover plate 61 is closed on the manual drive lock 4 and contacts the microswitch 62, triggering the microswitch 62 to be powered on, energizing the remote control circuit. The remote control circuit can drive the motor 51 to act. The motor 51 acts to drive the gearbox 52 to act. The gearbox 52 acts to drive the large disc 23 to act, and then drives the drive shaft 21, the cam 24, and the pulley 25 to act, and finally drives the slider 3 to move and the handle to act, realizing the opening and closing operations of the circuit breaker;

[0055] When the manual operation mode needs to be used, the cover plate 61 is opened. At this time, the microswitch 62 is separated from the cover plate 61, and the microswitch 62 resets and loses power, and the remote control circuit is disconnected. Therefore, when in the manual operation mode, the remote electric control operation mode cannot be started, thus avoiding the situation where when a maintenance worker uses the manual operation mode to drive the operating mechanism 2 to drive the handle to trip for maintenance, the motor 51 is remotely controlled and started by the terminal controller, driving the operating mechanism 2 to drive the handle to close and causing a safety accident to the maintenance worker.

[0056] Continuing to refer to Figure 1 、 Figure 2 , a locking structure is further provided on the safety protection structure 6. The locking structure 8 is used to lock and close the cover plate 61 on the manual drive lock 4; specifically, the locking structure 8 includes a lock catch 81 provided on the setting panel 13 and a lock hole 82 opened on the cover plate 61 and cooperating with the lock catch 81. When the cover plate 61 is closed on the manual drive lock 4, the lock catch 81 is inserted into the lock hole 82 to lock and close the cover plate 61 on the manual drive lock 4, thereby preventing the manual drive lock 4 from being opened randomly. That is, the electric operation device of the present application is normally controlled by the remote electric control drive mode. When on-site maintenance is required, the manual operation mode can be used by opening the locking structure and opening the cover plate 61 to open the manual drive lock 4; setting the locking structure 8 on the safety protection structure 6 makes the operating mechanism unable to be randomly switched from the remote electric control operation mode to the manual operation mode, improving operation safety.

[0057] Continue to refer to Figure 3 and Figure 4 , the electric operating device is further provided with a safety locking mechanism 7. The safety locking mechanism 7 is provided with a pressing structure for pressing down the circuit breaker test switch and a safety lock 71 for controlling the action of the pressing structure. The pressing structure includes a rotating shaft 72, a sliding plate 73 linked with the rotating shaft 72, a lever 74 in contact with the sliding plate 73, and a pressing column 75 fixedly connected to the lower end of the lever 74. The safety lock 71 is fixedly connected to the rotating shaft 72. The rotating shaft 72 is provided with a first protrusion 721 capable of pushing the sliding plate 73 to move in alignment, and the rotating shaft 72 is further provided with a second protrusion 722 capable of blocking the movement of the slider 3 in alignment;

[0058] When the safety lock 71 rotates to drive the rotating shaft 72 to rotate, when the safety lock 71 is in the unlocked state, the first protrusion 721 pushes the sliding plate 73 to move in alignment. The sliding plate 73 pushes one end of the lever 74 in contact with it to move upward, so that the other end of the lever 74 fixed with the pressing column 75 drives the pressing column 75 to move downward to press the test switch. At this time, the second protrusion 722 blocks the movement of the slider 3 in the closing direction in alignment;

[0059] Through the structural design of the mutual cooperation of the first protrusion 721, the sliding plate 73, the lever 74, and the pressing column 75, the pressing structure has a long pressing stroke, which can ensure that the test switch on the circuit breaker is pressed in place, and the second protrusion 722 can limit the slider 3 while pressing the test switch, avoiding the slider 3 from moving in the opening direction, thereby improving the use safety.

[0060] Specifically, when in use, a key matching the safety lock 71 is inserted into the safety lock 71 and rotated to open the safety lock 71. At this time, the key rotation drives the safety lock 71 and the rotating shaft 72 to rotate. When the rotating shaft 72 rotates in place, the first protrusion 721 pushes the sliding plate 73 in alignment. The sliding plate 73 contacts the lever 74 through a ramp surface. When the slider 73 moves, it pushes one end of the lever 74 in contact with it to move upward, so that the other end fixed with the pressing column 75 moves downward, that is, drives the pressing column 75 to press down to push the test switch to open. At this time, the second protrusion 722 rotates in alignment with the end of the slider 3 and can lock the slider 3 from moving in the closing direction, so that when the test switch of the circuit breaker is pressed, the circuit breaker cannot be closed, thereby improving the use safety of the circuit breaker.

[0061] When the safety lock 71 is in the locked state, the first protrusion 721 is not aligned with the sliding plate 73, and the second protrusion 722 is not aligned with the slider 3, that is, when the test switch is not pressed, the operating mechanism 2 can be normally driven to operate for opening and closing operations.

[0062] In summary, the present invention adopts a safety protection structure and a safety locking mechanism, so that when the operating mechanism is in the manual operation mode, the remote electric control operation mode does not work. At the same time, when the test switch of the circuit breaker is depressed, the operating mechanism cannot be driven to act, improving the operation safety;

[0063] Specifically, the present invention adopts a structural design in which a cover plate and a signal acquisition element / microswitch cooperate with each other. The cover plate is used to protect the manual drive lock. The signal acquisition element is used to detect whether the cover plate is closed on the manual drive lock to obtain / lose a signal to control the on / off of the remote control circuit, or whether the microswitch contacts the cover plate to make the microswitch energized or de-energized to control the on / off of the remote control circuit. Thus, when the electric operating device is in the manual operation mode, the remote electric control drive structure cannot be enabled, so as to avoid personal injury caused by the action of the remote electric control operation mode drive device during on-site manual operation by maintenance personnel;

[0064] Adopt a safety locking mechanism composed of a safety lock pressing structure. The pressing structure is controlled by the safety lock to act. Through the mutual cooperation of the linked first protrusion, slide plate, lever, and pressing column, the pressing structure has a long pressing stroke, which can ensure that the test switch on the circuit breaker is pressed in place. At the same time, when the test switch is depressed, the second protrusion can limit the slider to prevent the slider from moving in the opening direction, thereby improving the use safety.

[0065] In addition, a gearbox housing integrally injection-molded from a plastic material is adopted. By providing a positioning rod and a locking rod on the housing, it is convenient to fixedly connect with the partition plate, making the housing have the characteristics of convenient disassembly and assembly. At the same time, a positioning boss capable of limiting and supporting the gear transmission shaft is provided on the housing, which can limit the displacement of the gear, improve the reliability of limiting and fixing the gear transmission shaft, and at the same time, there is no need to machine a boss on the gear transmission shaft, which can reduce the manufacturing cost.

[0066] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0067] The above are only embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present invention.

Claims

1. An electric operating device, comprising: A box body, an operating mechanism installed inside the box body, and a slider linked to the operating mechanism. The slider is used to connect to the handle of a circuit breaker. The operating mechanism acts to drive the slider to move, and the movement of the slider drives the handle of the circuit breaker to move to achieve the opening and closing operations of the circuit breaker. It is characterized in that the operating mechanism can be driven to act by a manual control driving lock or a remote electric control driving structure. The electric operating device further includes a safety protection structure and a safety locking mechanism. The safety protection structure includes: a cover plate and a microswitch arranged below the edge of the cover plate. The cover plate is arranged above the manual control driving lock of the electric operating device. When the cover plate covers the manual control driving lock, the cover plate contacts the microswitch, triggering the microswitch to energize the remote electric control driving structure. When the cover plate is opened from the manual control driving lock, the cover plate separates from the microswitch, and the microswitch resets and loses power to cut off the power supply of the remote electric control driving structure. The safety protection structure is also provided with a locking structure for locking the cover plate to cover the manual control driving lock. The locking structure includes a lock catch arranged on the upper end panel of the box body and a lock hole opened on the cover plate that cooperates with the lock catch. The safety locking mechanism is arranged on the side of the slider and is used to press down the test switch on the circuit breaker and can lock the movement of the slider. The safety locking mechanism includes: a pressing structure for pressing down the test switch of the circuit breaker and a safety lock for controlling the action of the pressing structure. The pressing structure includes a rotating shaft, a sliding plate, a lever, and a pressing column. The rotating shaft is provided with a first protrusion that can push the sliding plate to move in alignment, and the rotating shaft is also provided with a second protrusion that can block the movement of the slider in alignment. The safety lock is fixedly connected to the rotating shaft, and the rotation of the safety lock drives the rotation of the rotating shaft. When the safety lock is in the unlocked state, the first protrusion pushes the sliding plate to move in alignment, and the sliding plate pushes one end of the lever in contact with it to move upward, causing the other end of the lever fixed with the pressing column to drive the pressing column to move downward to press the test switch. At this time, the second protrusion blocks the slider from moving in the closing direction in alignment.

2. The electric operating device according to claim 1, characterized in that, The operating mechanism includes a driving shaft, a flange fixed to the upper end of the driving shaft, a large disc fixed to the shaft body of the driving shaft, a cam fixed to the lower end of the driving shaft, and a pulley fixed to the cam. The pulley rotates synchronously with the cam and is used to push the slider in contact with the pulley to move, thereby driving the handle to move.

3. The electric operating device according to claim 2, characterized in that, The manual control driving lock is opened on the flange.

4. The electric operating device according to claim 2, characterized in that, The remote electric control driving structure includes a remote control circuit, a motor connected to the remote control circuit, and a gearbox. The final transmission gear in the gearbox contacts the large disc on the operating mechanism, and the motor is driven to act by a terminal controller through the remote control circuit.

5. The electric operating device according to claim 4, characterized in that, A partition is provided in the middle of the box body, and a fixing plate is provided at the bottom. The motor is fixed to the fixing plate, and the gearbox is fixed to the partition.

6. The electric operating device according to claim 5, characterized in that, The housing of the gearbox is a plastic housing integrally injection-molded from a plastic material.

7. The electric operating device according to claim 6, characterized in that, The housing of the gearbox is also provided with an installation hole for installing the driving shaft of the operating mechanism.

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