Safety clutch device for high-voltage electric appliance

Abstract

The invention relates to the technical field of power transmission and distribution equipment of an electric power system, and discloses a safety clutch device for a high-voltage electric appliance and electric power equipment, a cabinet door is installed on the inner wall of the front end of the electric power equipment and used for protecting components installed in the electric power equipment, and an early warning system is further arranged in the electric power equipment. The early warning system simulates the simulated pressure data generated by the air pressure sensing device when the hollow slab and the clamping groove are in the normal working state, the simulated pressure data are integrated to form the threshold range, the early warning system compares the real-time pressure data with the threshold range, and when the real-time pressure data is not in the threshold range, the early warning system gives an alarm to the hollow slab. Therefore, the effect of monitoring the working state of the hollow slab and the clamping groove in real time is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission and distribution equipment of electric power system, and more specifically to a safety clutch device for high-voltage electrical appliances. Background Art

[0002] The safety clutch device is used in high-voltage electrical switch equipment as a safety protection device for the operating mechanism of the disconnector. The common safety clutch device is mainly composed of a servo motor, a transmission rod, a limit mechanism, and a control system. The specific process of the safety clutch device for high-voltage electrical switch is as follows: the servo motor inputs a stable working current under the control system to generate a certain torque, which is transmitted to the rotary switch through the transmission rod and the limit mechanism, thereby driving the clutch switch to open and close; In the actual operation process, we found that some safety clutch devices could not work properly and could not switch the circuit accurately and quickly. In the later research process, we found that the main reason for the above situation was that the connection between the transmission rod and the limit mechanism was damaged and broken. The main factor for this situation was excessive aging and wear between the transmission rod and the limit mechanism. When this phenomenon occurred, it could only be discovered through manual quality inspection, which caused irreversible damage to the high-voltage electrical appliances. In severe cases, it may cause irreversible damage to the entire power system, resulting in certain economic losses. Therefore, we are in urgent need of a safety clutch device for high-voltage electrical appliances to solve the technical problems raised above. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a safety clutch device for high-voltage electrical appliances to solve the problems existing in the above-mentioned background technology.

[0004] The present invention provides the following technical solution: a safety clutch device for high-voltage electrical appliances, comprising: Power equipment, wherein a cabinet door is installed on the inner wall of the front end of the power equipment to protect the components installed inside the power equipment; An electric control mechanism, used to control the transmission of electric power of the electric equipment, wherein the electric control mechanism is installed on the inner side of the bottom of the electric equipment; A protective shell is installed on the inner wall at the bottom of the cabinet door, and an early warning system is also arranged inside the power equipment to monitor whether the electric control mechanism can normally control the transmission of relevant power.

[0005] Furthermore, a rotary switch is installed in the middle area of ​​the front end of the electric control mechanism, and a transmission rod is fixedly installed in the middle area of ​​the front end of the rotary switch. When the transmission rod rotates, it can drive the rotary switch to perform synchronous operation, thereby controlling the electric control mechanism to perform corresponding power transmission. A card slot is opened in the middle area of ​​the inner wall of the front end of the transmission rod, and a limit plate is installed on the outer side of the transmission rod near the card slot; A servo motor is installed on the inner wall of one side of the protective shell.

[0006] Furthermore, a first transmission gear is installed at the output end of the servo motor, and the outer wall of the first transmission gear is meshedly connected with a second transmission gear. A gear transmission group can be formed between the first transmission gear and the second transmission gear to transmit the rotational force generated by the servo motor.

[0007] Furthermore, an auxiliary transmission rod is installed through the middle position of the second transmission gear, and the ends of both ends of the auxiliary transmission rod extend to the external space of the second transmission gear, and a main transmission rod is fixedly installed at one end of the auxiliary transmission rod, and two groups of placement grooves are respectively opened at symmetrical positions of the inner wall of the main transmission rod away from one end of the auxiliary transmission rod, and the two groups of placement grooves are respectively located on both sides of the axis of the main transmission rod and are symmetrical about the axis, and a conveying cabin is opened on the inner wall of the main transmission rod near the two groups of placement grooves to ensure that air is in a state of mutual circulation between the two groups of placement grooves, and the inner walls of the two groups of placement grooves are both sleeved with hollow plates, and the middle position of the spring passes through the interior of the conveying cabin, and an air pressure sensing device is installed on the inner wall of the conveying cabin for sensing the pressure data of the two groups of placement grooves and the interior of the conveying cabin, and transmitting it to the early warning system for monitoring the real-time working status of the electric control mechanism, and a rubber layer is installed on the outer side of the hollow plate.

[0008] Furthermore, an air pump is installed on the inner wall of the other side of the protective shell, and a U-shaped delivery pipe is installed at the gas output end of the air pump. The end of the U-shaped delivery pipe away from the air pump is movably connected with a three-way pipe, and an annular plate is fixedly installed on the outer side of the main transmission rod near the auxiliary transmission rod, and an annular air cabin is arranged on the inner wall of the main transmission rod near the annular plate. The three-way pipe has two groups of air outlets at one end away from the U-shaped delivery pipe, one group of air outlets of the three-way pipe is arranged inside the annular air cabin, and the other group of air outlets of the three-way pipe is arranged inside the delivery cabin. The air pump inputs a stable working current to generate compressed air, and delivers it to the inside of the delivery cabin through the U-shaped delivery pipe and the other group of air outlets of the three-way pipe, thereby driving the two groups of hollow plates to move to the external space of the main transmission rod. After the hollow plates move to the specified position, the rubber layer and the outer wall of the hollow plates are matched with the inner wall of the slot.

[0009] Furthermore, the inner walls at both ends of the annular plate are provided with limiting grooves, and the inner walls of the annular plate near the limiting grooves are installed with torsion spring devices, the output end of the torsion spring device is installed with an auxiliary support rod, and the end of the auxiliary support rod away from the torsion spring device is installed with a limiting support plate, and a telescopic tube is installed on the side of the limiting support plate away from the position of the annular plate, and the end of the telescopic tube away from the position of the limiting support plate is installed inside the annular air chamber.

[0010] Furthermore, the air pump inputs a stable working current to generate compressed air or adsorbed air, which is input into the interior of the annular air cabin through a group of air outlets of the U-shaped delivery pipe and the three-way pipe. The compressed air inside the annular air cabin is transmitted to the telescopic tube to drive the telescopic tube to be in a stretched state. Under the drive of the torsion spring device, the two groups of limit support plates are controlled to be attached to the outer walls of the two groups of limit plates. The adsorbed air inside the annular air cabin is transmitted to the telescopic tube to drive the telescopic tube to be in a contracted state, and the limit support plates are controlled to return to their original positions.

[0011] Furthermore, the early warning system simulates the simulated pressure data generated by the air pressure sensing device when the hollow plate and the card slot are in a normal working state, and integrates the simulated pressure data to form a threshold range. The early warning system compares the real-time pressure data with the threshold range. When the real-time pressure data is not within the threshold range, it is determined that wear and aging occurs between the hollow plate and the card slot.

[0012] Technical effects and advantages of the present invention: 1. The present invention uses the early warning system to simulate the simulated pressure data generated by the air pressure sensing device when the hollow plate and the card slot are in a normal working state, and integrates the simulated pressure data to form a threshold range. The early warning system compares the real-time pressure data with the threshold range. When the real-time pressure data is not within the threshold range, it is determined that wear and aging occurs between the hollow plate and the card slot, thereby achieving the effect of real-time monitoring of the working state of the hollow plate and the card slot.

[0013] 2. The present invention inputs a stable reverse working current through an air pump to generate an adsorption force, and delivers the current to the inside of the delivery cabin through the U-shaped delivery pipe and the other set of air outlets of the three-way pipe, thereby driving the two sets of hollow plates to return to their original positions. After the two sets of hollow plates return to their original positions, the main transmission rod and the inner wall of the card slot are in a non-contact state, thereby avoiding the vibration force generated by the power equipment when working, thereby avoiding the friction between the inner wall of the card slot and the outer wall of the main transmission rod and the hollow plate, further reducing the efficiency of the loss of the hollow plate and the main transmission rod, thereby enhancing the service life of the hollow plate and the main transmission rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 for Figure 1A schematic diagram of the enlarged structure in the middle.

[0016] Figure 3 for Figure 1 Schematic diagram of the overall structure of the protective shell.

[0017] Figure 4 for Figure 3 Schematic diagram of the back structure cross-section of the middle protective shell.

[0018] Figure 5 for Figure 4 Schematic diagram of the overall structure of the main transmission rod.

[0019] Figure 6 for Figure 5 Schematic diagram of the side structural section of the middle main transmission rod.

[0020] Figure 7 for Figure 6 Schematic diagram of the overall structural cross-section of the middle ring plate.

[0021] The accompanying drawings are marked as follows: 1. power equipment; 101. cabinet door; 2. electric control mechanism; 201. rotary switch; 202. transmission rod; 203. slot; 204. limit plate; 3. protective shell; 301. main transmission rod; 302. servo motor; 303. first transmission gear; 304. second transmission gear; 305. auxiliary transmission rod; 306. U-shaped conveying pipe; 307. air pump; 308. hollow plate; 309. rubber layer; 310. annular air cabin; 311. three-way pipe; 312. conveying cabin; 313. spring; 4. annular plate; 401. limit slot; 402. limit support plate; 403. telescopic tube; 404. torsion spring device. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The safety clutch device for high-voltage electrical appliances involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0023] Reference Figure 1 to Figure 2 As shown, the present invention provides a safety clutch device for high-voltage electrical appliances, comprising: The electric power equipment 1, wherein a cabinet door 101 is installed on the inner wall of the front end of the electric power equipment 1, for protecting the components installed inside the electric power equipment 1; The electric control mechanism 2 is used to control the transmission of electric power of the electric device 1, wherein the electric control mechanism 2 is installed on the inner side of the bottom of the electric device 1; A protective shell 3 is installed on the inner wall at the bottom of the cabinet door 101, and an early warning system is also arranged inside the power equipment 1 to monitor whether the electric control mechanism 2 can normally control the transmission of relevant power.

[0024] In the embodiment of the present application, the specific working process of this part of the embodiment of the application is: during work, the staff can manually open the cabinet door 101 to facilitate the maintenance of some components inside the power equipment 1.

[0025] Reference Figure 1 to Figure 2 As shown, the present invention provides a safety clutch device for high-voltage electrical appliances, wherein a rotary switch 201 is installed in the middle area of ​​the front end of the electric control mechanism 2, and a transmission rod 202 is fixedly installed in the middle area of ​​the front end of the rotary switch 201. When the transmission rod 202 rotates, it can drive the rotary switch 201 to perform synchronous operation, thereby controlling the electric control mechanism 2 to perform corresponding power transmission, and a slot 203 is provided in the middle area of ​​the inner wall of the front end of the transmission rod 202, and a limit plate 204 is installed on the outer side of the transmission rod 202 at a position close to the slot 203.

[0026] In the embodiment of the present application, the specific working process of this part of the application embodiment is: the external rotational force is transmitted to the transmission rod 202, thereby driving the transmission rod 202 and the rotary switch 201 to perform synchronous rotation operations, and then controlling the electric control mechanism 2 to perform corresponding power transmission.

[0027] Reference Figures 1 to 6 As shown, the present invention provides a safety clutch device for high-voltage electrical appliances, wherein a servo motor 302 is installed on the inner wall of one side of the protective housing 3, a first transmission gear 303 is installed on the output end of the servo motor 302, and a second transmission gear 304 is meshedly connected to the outer wall of the first transmission gear 303, and a gear transmission group can be formed between the first transmission gear 303 and the second transmission gear 304, for transmitting the rotational force generated by the servo motor 302; An auxiliary transmission rod 305 is installed through the middle position of the second transmission gear 304. The ends of the auxiliary transmission rod 305 extend to the external space of the second transmission gear 304. One end of the auxiliary transmission rod 305 is fixedly installed with the main transmission rod 301. Two groups of placement grooves are respectively opened at symmetrical positions of the inner wall of the main transmission rod 301 away from one end of the auxiliary transmission rod 305. The two groups of placement grooves are respectively located on both sides of the axis of the main transmission rod 301 and are symmetrical about the axis. The inner wall of the main transmission rod 301 is close to the two groups of placement grooves. A conveying cabin 312 is provided at the position of the placement slots to ensure that the air between the two groups of placement slots is in a state of mutual circulation. The inner walls of the two groups of placement slots are sleeved with hollow plates 308, and the middle position of the spring 313 passes through the interior of the conveying cabin 312. An air pressure sensing device is installed on the inner wall of the conveying cabin 312 to sense the pressure data of the two groups of placement slots and the interior of the conveying cabin 312, and transmit it to the early warning system for monitoring the real-time working status of the electric control mechanism 2. A rubber layer 309 is installed on the outer side of the hollow plate 308; An air pump 307 is installed on the inner wall of the other side of the protective shell 3, and a U-shaped delivery pipe 306 is installed on the gas output end of the air pump 307. A tee pipe 311 is movably sleeved on one end of the U-shaped delivery pipe 306 away from the air pump 307. An annular plate 4 is fixedly installed on the outer side of the main transmission rod 301 near the auxiliary transmission rod 305, and an annular air chamber 310 is arranged on the inner wall of the main transmission rod 301 near the annular plate 4. The end of the tee pipe 311 away from the U-shaped delivery pipe 306 has two sets of air outlets, one set of the tee pipe 311 outlets. The air inlet is arranged inside the annular air cabin 310, and another set of air outlets of the three-way pipe 311 is arranged inside the conveying cabin 312. The air pump 307 inputs a stable working current to generate compressed air, and conveys the compressed air to the inside of the conveying cabin 312 through the U-shaped conveying pipe 306 and another set of air outlets of the three-way pipe 311, thereby driving the two sets of hollow plates 308 to move toward the external space of the main transmission rod 301. After the hollow plates 308 move to the specified position, the outer walls of the rubber layer 309 and the hollow plates 308 are adapted to the inner walls of the card slot 203.

[0028] In the embodiment of the present application, when the compressed air is transmitted to the interior of the hollow plate 308 , the rubber layer 309 is in an expanded state, so that the early warning system can monitor the working state of the electric control mechanism 2 in real time.

[0029] The specific workflow of this part of the application example is as follows: The air pump 307 inputs a stable working current to generate compressed air, and delivers the compressed air to the inside of the delivery cabin 312 through the U-shaped delivery pipe 306 and another set of air outlets of the three-way pipe 311, thereby driving the two sets of hollow plates 308 to move to the external space of the main transmission rod 301. After the hollow plates 308 move to the specified position, the rubber layer 309, the hollow plates 308 and the main transmission rod 301 are inserted into the inner wall of the card slot 203. At the same time, the servo motor 302 inputs a stable working current, and drives the auxiliary transmission rod 305, the main transmission rod 301, the hollow plates 308, the transmission rod 202, and the rotary switch 201 to perform synchronous rotation through the transmission of the first transmission gear 303 and the second transmission gear 304, so as to control the power transmission direction of the electric control mechanism 2; After the power transmission direction of the electric control mechanism 2 is adjusted, the air pump 307 inputs a stable reverse working current to generate an adsorption force, and transmits it to the interior of the conveying cabin 312 through another set of air outlets of the U-shaped conveying pipe 306 and the three-way pipe 311, thereby driving the two groups of hollow plates 308 to return to their original positions. After the two groups of hollow plates 308 return to their original positions, the main transmission rod 301 and the inner wall of the slot 203 are in a non-contact state, avoiding the vibration force generated when the power equipment 1 is working, thereby causing friction between the inner wall of the slot 203 and the outer wall of the main transmission rod 301 and the hollow plate 308, further reducing the efficiency of the loss of the hollow plate 308 and the main transmission rod 301, thereby enhancing the service life of the hollow plate 308 and the main transmission rod 301.

[0030] Reference Figures 4 to 7 As shown, the present invention provides a safety clutch device for high-voltage electrical appliances, the inner walls of the two ends of the annular plate 4 are provided with limit grooves 401, and the inner walls of the annular plate 4 near the limit grooves 401 are installed with torsion spring devices 404, the output end of the torsion spring device 404 is installed with an auxiliary support rod, the end of the auxiliary support rod away from the torsion spring device 404 is installed with a limit support plate 402, the side of the limit support plate 402 away from the annular plate 4 is installed with a telescopic tube 403, and the end of the telescopic tube 403 away from the limit support plate 402 is installed inside the annular air chamber 310; The air pump 307 inputs a stable working current to generate compressed air or adsorbed air, which is input into the interior of the annular air cabin 310 through a group of air outlets of the U-shaped delivery pipe 306 and the three-way pipe 311. The compressed air inside the annular air cabin 310 is transmitted to the telescopic tube 403 to drive the telescopic tube 403 to be in a stretched state. Under the drive of the torsion spring device 404, the two groups of limit support plates 402 are controlled to be attached to the outer walls of the two groups of limit plates 204. The adsorbed air inside the annular air cabin 310 is transmitted to the telescopic tube 403 to drive the telescopic tube 403 to be in a contracted state, and the limit support plate 402 is controlled to return to its original position.

[0031] In the embodiment of the present application, when the two groups of the limit support plates 402 are respectively attached to the outer walls of the corresponding limit plates 204, the two groups of limit support plates 402 are symmetrically placed with respect to the center point of the transmission rod 202, and are used for the two groups of limit support plates 402 to control the limit plates 204 and the transmission rod 202 to rotate clockwise and counterclockwise.

[0032] The specific working process of the embodiments of this part of the application is as follows: when the early warning system determines that the connection between the hollow plate 308 and the slot 203 is worn, and thus the electric control mechanism 2 cannot work, the air pump 307 inputs a stable working current to generate compressed air, which is input into the interior of the annular air chamber 310 through a group of air outlets of the U-shaped delivery pipe 306 and the three-way pipe 311. The compressed air inside the annular air chamber 310 is transmitted to the telescopic tube 403 to drive the telescopic tube 403 to be in a stretched state. Under the drive of the torsion spring device 404, the two groups of limit support plates 402 are controlled to be attached to the outer walls of the two groups of limit plates 204, thereby assisting the control of the rotary switch 201 to perform normal rotation adjustment, thereby achieving the effect of temporarily assisting the electric control mechanism 2 to perform normal power adjustment operations, and avoiding the phenomenon that the electric control mechanism 2 cannot work normally.

[0033] Reference Figures 1 to 7 As shown, the present invention provides a safety clutch device for high-voltage electrical appliances. The early warning system simulates the simulated pressure data generated by the air pressure sensing device when the hollow plate 308 and the slot 203 are in a normal working state, and integrates the simulated pressure data to form a threshold range. The early warning system compares the real-time pressure data with the threshold range. When the real-time pressure data is not within the threshold range, it is determined that wear and aging occurs between the hollow plate 308 and the slot 203.

[0034] In the embodiment of the present application, when the early warning system determines that wear and aging occurs between the hollow plate 308 and the slot 203, it determines that the electric control mechanism 2 cannot work normally at this time, and remotely sends an early warning message to the staff to remind them to go to the site for inspection.

[0035] The specific workflow of this application: Equipment maintenance: During operation, the staff can manually open the cabinet door 101 to facilitate maintenance of some components inside the power equipment 1; Circuit adjustment process of the electric control mechanism 2: the air pump 307 inputs a stable working current to generate compressed air, and delivers it to the inside of the delivery cabin 312 through the U-shaped delivery pipe 306 and another set of air outlets of the three-way pipe 311, thereby driving the two sets of hollow plates 308 to move to the external space of the main transmission rod 301. After the hollow plates 308 move to the specified position, the rubber layer 309, the hollow plates 308 and the main transmission rod 301 are inserted into the inner wall of the card slot 203. At the same time, the servo motor 302 inputs a stable working current, and drives the auxiliary transmission rod 305, the main transmission rod 301, the hollow plates 308 and the transmission rod 202, and the rotary switch 201 to perform synchronous rotation through the transmission of the first transmission gear 303 and the second transmission gear 304, so as to control the power transmission direction of the electric control mechanism 2; After the electric control mechanism 2 completes the adjustment of the electric power transmission direction, the air pump 307 inputs a stable reverse working current to generate an adsorption force, and transmits the electric power to the inside of the transmission cabin 312 through the U-shaped transmission pipe 306 and another set of air outlets of the three-way pipe 311, thereby driving the two sets of hollow plates 308 to return to their original positions. After the two sets of hollow plates 308 return to their original positions, the main transmission rod 301 and the inner wall of the card slot 203 are in a non-contact state, thereby avoiding the vibration force generated by the electric power equipment 1 when working, thereby causing the inner wall of the card slot 203 and the outer wall of the main transmission rod 301 and the hollow plate 308 to generate friction, further reducing the efficiency of the loss of the hollow plate 308 and the main transmission rod 301, thereby enhancing the service life of the hollow plate 308 and the main transmission rod 301; Temporary processing flow: When the early warning system determines that the connection between the hollow plate 308 and the slot 203 is worn, causing the electric control mechanism 2 to be unable to work, the air pump 307 inputs a stable working current to generate compressed air, which is input into the interior of the annular air chamber 310 through a group of air outlets of the U-shaped delivery pipe 306 and the three-way pipe 311. The compressed air inside the annular air chamber 310 is transmitted to the telescopic tube 403 to drive the telescopic tube 403 to be in a stretched state. Under the drive of the torsion spring device 404, the two groups of limit support plates 402 are controlled to be attached to the outer walls of the two groups of limit plates 204, thereby assisting the control of the rotary switch 201 to perform normal rotation adjustment, thereby achieving the effect of temporarily assisting the electric control mechanism 2 to perform normal power adjustment operations, and avoiding the phenomenon that the electric control mechanism 2 cannot work normally.

[0036] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change; Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A safety clutch device for high voltage electrical appliances, characterized in that: include: An electric power device (1), wherein a cabinet door (101) is installed on the inner wall of the front end of the electric power device (1) for protecting components installed inside the electric power device (1); An electric control mechanism (2) is used to control the transmission of electric power of the electric power equipment (1), wherein the electric control mechanism (2) is installed on the inner side surface of the bottom of the electric power equipment (1); A protective housing (3) is installed on the inner wall at the bottom of the cabinet door (101), and an early warning system is also provided inside the power equipment (1) for monitoring whether the electric control mechanism (2) can normally control the transmission of relevant power; A rotary switch (201) is installed in the middle area of ​​the front end of the electric control mechanism (2), and a transmission rod (202) is fixedly installed in the middle area of ​​the front end of the rotary switch (201). When the transmission rod (202) rotates, it can drive the rotary switch (201) to perform synchronous operation, thereby controlling the electric control mechanism (2) to perform corresponding power transmission. A slot (203) is provided in the middle area of ​​the inner wall of the front end of the transmission rod (202), and a limit plate (204) is installed on the outer side surface of the transmission rod (202) at a position close to the slot (203); A servo motor (302) is installed on the inner wall of one side of the protective housing (3).

2. A safety clutch device for high voltage electrical appliances according to claim 1, characterized in that: A first transmission gear (303) is installed at the output end of the servo motor (302), and a second transmission gear (304) is meshedly connected to the outer wall of the first transmission gear (303), and a gear transmission group can be formed between the first transmission gear (303) and the second transmission gear (304) for transmitting the rotational force generated by the servo motor (302).

3. A safety clutch device for high voltage electrical appliances according to claim 2, characterized in that: An auxiliary transmission rod (305) is installed through the middle position of the second transmission gear (304), and the ends of both ends of the auxiliary transmission rod (305) extend to the external space of the second transmission gear (304). A main transmission rod (301) is fixedly installed at one end of the auxiliary transmission rod (305), and two groups of placement grooves are respectively opened at symmetrical positions on the inner wall of the main transmission rod (301) away from one end of the auxiliary transmission rod (305). The two groups of placement grooves are respectively located on both sides of the axis of the main transmission rod (301) and are symmetrical about the axis, and the inner wall of the main transmission rod (301) is close to the two groups of placement grooves. A conveying cabin (312) is provided at the position of the placement slots to ensure that air is mutually circulated between the two groups of placement slots. The inner walls of the two groups of placement slots are sleeved with hollow plates (308), and the middle position of the spring (313) passes through the interior of the conveying cabin (312). An air pressure sensing device is installed on the inner wall of the conveying cabin (312) to sense the pressure data of the two groups of placement slots and the interior of the conveying cabin (312), and transmit it to the early warning system for monitoring the real-time working status of the electric control mechanism (2). A rubber layer (309) is installed on the outer side of the hollow plate (308).

4. A safety clutch device for high voltage electrical appliances according to claim 3, characterized in that: An air pump (307) is installed on the inner wall of the other side of the protective shell (3), a U-shaped delivery pipe (306) is installed on the gas output end of the air pump (307), one end of the U-shaped delivery pipe (306) away from the air pump (307) is movably sleeved with a three-way pipe (311), an annular plate (4) is fixedly installed on the outer side of the main transmission rod (301) near the auxiliary transmission rod (305), and an annular air chamber (310) is provided on the inner wall of the main transmission rod (301) near the annular plate (4), one end of the three-way pipe (311) away from the U-shaped delivery pipe (306) has two groups of gas outlets, and the three-way pipe (311) is provided with a plurality of gas outlets. A group of air outlets is arranged inside the annular air cabin (310), and another group of air outlets of the three-way pipe (311) is arranged inside the conveying cabin (312). The air pump (307) inputs a stable working current to generate compressed air, and delivers the compressed air to the inside of the conveying cabin (312) through the U-shaped conveying pipe (306) and the other group of air outlets of the three-way pipe (311), thereby driving the two groups of hollow plates (308) to move toward the external space of the main transmission rod (301). After the hollow plates (308) move to the specified position, the outer wall of the rubber layer (309) and the hollow plates (308) are matched with the inner wall of the slot (203).

5. A safety clutch device for high voltage electrical appliances according to claim 4, characterized in that: The inner walls at both ends of the annular plate (4) are provided with limiting grooves (401), and the inner walls of the annular plate (4) close to the limiting grooves (401) are provided with torsion spring devices (404), the output end of the torsion spring device (404) is provided with an auxiliary support rod, the end of the auxiliary support rod away from the torsion spring device (404) is provided with a limiting support plate (402), a telescopic tube (403) is provided on the side of the limiting support plate (402) away from the annular plate (4), and the end of the telescopic tube (403) away from the limiting support plate (402) is provided inside the annular air chamber (310).

6. A safety clutch device for high voltage electrical appliances according to claim 5, characterized in that: The air pump (307) inputs a stable working current to generate compressed air or adsorbed air, which is input into the interior of the annular air chamber (310) through a group of air outlets of the U-shaped delivery pipe (306) and the three-way pipe (311). The compressed air inside the annular air chamber (310) is transmitted to the telescopic tube (403) to drive the telescopic tube (403) to be in a stretched state. Under the drive of the torsion spring device (404), the two groups of limit support plates (402) are controlled to be attached to the outer walls of the two groups of limit plates (204). The adsorbed air inside the annular air chamber (310) is transmitted to the telescopic tube (403) to drive the telescopic tube (403) to be in a contracted state, and the limit support plates (402) are controlled to return to their original positions.

7. A safety clutch device for high voltage electrical appliances according to claim 3, characterized in that: The early warning system simulates the simulated pressure data generated by the air pressure sensing device when the hollow plate (308) and the card slot (203) are in a normal working state, and integrates the simulated pressure data to form a threshold range. The early warning system compares the real-time pressure data with the threshold range. When the real-time pressure data is not within the threshold range, it is determined that wear and aging occurs between the hollow plate (308) and the card slot (203).

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