Pressing plate structure for relay protection of dual-drive power distribution cabinet and use method of pressing plate structure

Abstract

The invention discloses a dual-drive pressing plate structure for relay protection of a power distribution cabinet and a use method thereof, and belongs to the technical field of protection pressing plates. An electric driving mode and a manual driving mode are designed. In the aspect of electric driving, a transmission assembly is driven by a servo motor to conduct power transmission and direction change, a connecting piece is driven to conduct circumferential movement with a first connecting column as a shaft, the linkage execution function is achieved, an operator only needs to press a driving switch without making contact with internal components, and the problem that potential safety hazards occur to the operator is solved. In the aspect of manual driving, a manual adjusting assembly is designed, after a person presses a shifting piece, transmission assemblies on the upper portion of a fixing disc are separated, then the shifting piece is rotated, and therefore a connecting piece can conduct circumferential movement with a first connecting column as a shaft. In addition, through the design of the limiting assembly, the connecting piece is limited through the limiting rod, the hanging stability is further guaranteed, and electric signals cannot be interfered by mechanical vibration and other reasons.

Description

Technical Field

[0001] The invention belongs to the technical field of protective pressure plates, and in particular relates to a dual-driven pressure plate structure for relay protection of a distribution cabinet and a use method thereof. Background Art

[0002] The protection pressure plate, also called the protection link or tripping pressure plate, is the bridge and link between the protection device and the external wiring. It is related to whether the protection function and action output can function normally. Therefore, the pressure plate structure for relay protection of the distribution cabinet is needed to protect the circuit devices.

[0003] The Chinese patent number CN202320658587.X discloses a pressure plate structure for relay protection of a power distribution cabinet. When in use, the patent first places the bottom end of the connecting piece close to the equipment, and uses nuts and mounting plates to firmly connect the connecting piece to prevent oxidation and rust at the connection. When operation is required, grasp the groove on the metal pressure piece to make the groove buckle on the threaded column, and then turn the insulating nut to press the metal pressure piece to limit the position. The limit block can limit the metal pressure plate.

[0004] From the above, it can be seen that the existing patent requires the metal pressure plate to be rotated and connected or disconnected by holding the pull ring, and the anti-slip protrusion is set to increase the friction between the pull ring and the human hand, thereby preventing the human hand from detaching from the pull ring, improving the safety of the staff during operation, and the length of the metal pressure plate can be telescopically adjusted as needed through the setting of the slider and the slide groove, and at the same time, it can prevent one end of the metal pressure plate from detaching from the inside of the movable sleeve, which is safer when used.

[0005] However, the case still has the following shortcomings: when the protective pressure plate is in use, the connecting pieces between the pressure plates need to be connected or disconnected when necessary. The existing patent requires personnel to manually move the connecting pieces during operation. At this time, the connecting pieces are charged. Although the current between the connecting pieces is direct current, there will still be safety hazards when the operator touches other charged objects.

[0006] Therefore, a new technical solution is urgently needed in the prior art to solve this problem. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a dual-driven distribution cabinet relay protection pressure plate structure and a method of using the same to solve the technical problem that when the existing protection pressure plates are performing connecting or interrupting operations between the pressure plates, there may still be safety hazards because the operator may contact other live objects.

[0008] A dual-drive switchboard relay protection pressure plate structure, comprising a protection pressure plate, the protection pressure plate comprising a connecting plate, a first connecting column, a second connecting column and a connecting piece, the two ends of the connecting plate are respectively fixedly connected to the lower parts of the first connecting column and the second connecting column, one end of the connecting piece is a rotating end, the rotating end is rotatably connected to the upper part of the first connecting column, the other end of the connecting piece is a hanging end, the hanging end is provided with a hook structure, and is hung with the upper part of the second connecting column through the hook structure; A dual-drive pressure plate structure for relay protection of a power distribution cabinet, further comprising a movable connection device, a manual adjustment component, a protective shell and a limit switch; the connecting plate, the first connecting column, the second connecting column and the connecting piece outside the respective connection parts are respectively covered with insulating shells; the movable connection device, the manual adjustment component and the limit switch are installed in the protective shell, a driving switch for controlling a servo motor to rotate in forward and reverse directions is arranged outside the protective shell, and a glass plate for observing the internal situation is arranged on the protective shell; The movable connection device includes a servo motor and a transmission assembly, and the servo motor is connected to the insulating shell outside the connecting piece through the transmission assembly; a fixed disk is fixedly installed on the transmission assembly; a plurality of fixed rods are fixedly installed on the bottom of the fixed disk; the plurality of fixed rods are plugged into the sockets provided on the rotating end of the insulating shell of the connecting piece in a one-to-one correspondence; the sockets are arranged around the first connecting column as the center; the fixed disk rotates under the drive of the servo motor and the transmission assembly and simultaneously drives the connecting piece to rotate around the first connecting column as the axis; the limit switch is fixedly installed on one side of the connecting piece, and after the connecting piece is hung with the second connecting column, it contacts the limit switch and triggers the limit switch, which triggers the limit switch to send a stop rotation instruction to the servo motor to stop the servo motor; The manual adjustment assembly includes a paddle and a transmission rod assembly; the upper end of the transmission rod assembly is fixedly connected to the rotating end of the connecting piece, and the lower end of the transmission rod assembly is connected to one end of the paddle; the other end of the paddle extends out from the long hole opened on the protective shell to the outside for manual shifting; when the movable connection device is effective, the manual adjustment assembly follows the movement of the connecting piece, and when the movable connection device fails, the paddle is pulled downward, and the paddle drives the connecting piece to move downward through the transmission rod assembly, so that the transmission components on the upper part of the fixed disk are disengaged, and then the paddle is rotated to make the connecting piece hooked or disengaged from the upper part of the second connecting column under manual control.

[0009] The transmission assembly includes a first sprocket, a chain, a second sprocket, a transmission shaft, a bearing, a first bevel gear, a second bevel gear and a fixed plate; the axis of the first sprocket is fixedly connected to the output end of the servo motor, and the first sprocket is transmission-connected to one side of the chain; the other side of the chain is transmission-connected to the second sprocket; one end of the transmission shaft passes through the axis of the second sprocket and is fixed, and the other end of the transmission shaft is fixedly installed with the first bevel gear; the first bevel gear is meshingly connected to the second bevel gear; and a fixed plate is fixedly installed at the lower part of the second bevel gear.

[0010] Two connecting seats are fixedly installed in the inner cavity of the protective shell, and bearings are fixedly installed on one side of the two connecting seats respectively; the inner wall of the bearing is rotatably connected to the transmission shaft.

[0011] The transmission rod assembly includes a mounting plate, a connecting rod, a connecting arm, a fixed block, a first universal joint, a movable shaft, a second universal joint, a rotating rod and a spring; one end of the connecting arm is hinged to one end of the fixed block, and the other end of the connecting arm is arranged vertically with the connecting rod and fixedly connected to one end of the connecting rod; the other end of the fixed block is fixedly connected to the rotating end of the connecting piece; the other end of the connecting rod is fixedly connected to the bracket part of the first universal joint; one end of the movable shaft is rotatably connected to the cross shaft of the first universal joint, and the other end of the movable shaft is rotatably connected to the cross shaft of the second universal joint; the bracket part of the second universal joint is fixedly connected to one end of the rotating rod; the external sleeve spring of the rotating rod, the other end of the rotating rod is arranged vertically and fixedly connected to the paddle; the mounting plate is a U-shaped structure, one end of the mounting plate is provided with an annular sleeve, the annular sleeve is movably sleeved on the outside of the upper end of the connecting rod, and the other end of the mounting plate is provided with a through hole, which is sleeved on the outside of the lower end of the rotating rod; one end of the spring abuts against the bracket part of the second universal joint, and the other end of the spring abuts against the inner wall of the other end of the mounting plate.

[0012] A dual-drive pressure plate structure for relay protection of a distribution cabinet also includes a limit assembly installed in a protective shell; the limit assembly includes a manual drive assembly and a limit rod connected to the manual drive assembly; the manual drive assembly drives the limit rod so that the limit rod pushes the hook structure of the connecting piece to fit tightly with the second connecting column.

[0013] The manual drive assembly includes a mounting seat, a rotating shaft, a worm, a worm wheel, a linkage shaft and a rotating handle; the mounting seat is fixedly mounted on the protective shell, and two mounting ears for mounting the rotating shaft are arranged on the upper part of one side of the mounting seat; one end of the rotating shaft passes through the mounting ear and is rotatably connected to the mounting ear, the other end of the rotating shaft is fixedly mounted with a rotating handle, and the middle part of the rotating shaft is fixedly sleeved with a worm; the worm is meshingly connected with the worm wheel located at the lower part thereof; the linkage shaft is fixedly fixed to the center of the worm wheel; one end of the linkage shaft is vertically arranged and fixedly connected to the limit rod, and the other end of the linkage shaft is rotatably connected to the mounting seat.

[0014] A method for using a dual-driven switchboard relay protection pressure plate structure, which is used to operate the dual-driven switchboard relay protection pressure plate structure, including two modes of electric drive and manual drive; The electric drive includes the following steps: S1, complete the connection; Press the forward rotation drive switch to start the servo motor, and the servo motor drives the fixed disk to rotate through the transmission assembly. The fixed disk applies the rotation state to the connecting piece, so that the connecting piece rotates clockwise around the first connecting column, until the hook of the connecting piece is hooked with the second connecting column, completing the connection state; S2, perform connection limit; After the connecting piece is connected, it contacts the actuator of the limit switch, and the limit switch sends an electrical signal to the servo motor to interrupt its power; the position of the actuator is pre-set on the limit switch, thereby controlling the rotation distance of the connecting piece after the connection is connected; S3, the disconnected state returns to the original position; Press the reverse rotation drive switch, the servo motor starts and enters the interruption state. The servo motor rotates counterclockwise, and through the transmission assembly and the fixed disk, the connecting piece rotates counterclockwise around the first connecting column as the axis until it returns to the original position and stops; Among them, manual driving includes the following steps: S1. Pull the paddle downward, and the paddle drives the connecting piece downward through the transmission rod assembly, so that the transmission assemblies on the upper part of the fixed plate are separated; S2. While keeping the pull down, rotate the paddle to drive the connecting piece to be hooked or detached from the upper part of the second connecting column through the transmission rod assembly.

[0015] Through the above design scheme, the present invention can bring the following beneficial effects: 1. The present invention uses the structural design of the movable connection device to drive the transmission component to transmit power and change direction through the drive of the servo motor, and then drives the fixed disk to rotate accordingly, so that the fixed disk drives the connecting piece to move in a circle with the first connecting column as the axis, thereby realizing the function of linkage execution. The operator only needs to press the drive switch without contacting the internal components, which solves the problem of safety hazards for the operator.

[0016] 2. The present invention adopts the structural design of the manual adjustment component. After the operator presses the paddle, the transmission rod assembly drives the connecting piece to produce linkage, so that the transmission components on the upper part of the fixed plate are separated. Then, by rotating the paddle, the connecting piece can move in a circle with the first connecting column as the axis. Since most of the pressure plate structures are equipped with an insulating shell, there will be no safety hazard when the operator touches other charged objects.

[0017] 3 The present invention adopts the structural design of the limit assembly, and the rotating shaft rotates by the rotation of the handle by a person, so as to drive the synchronous rotation of the worm on the rotating shaft. The worm cooperates with the worm wheel during work to transmit the rotational power to the linkage shaft. At this time, the linkage shaft drives the limit rod to move relatively, so that the limit rod limits the connecting piece on one side, further ensuring the stability of the hanging, and will not interfere with the electrical signal due to mechanical vibration and other reasons. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below with reference to the accompanying drawings and specific embodiments: Figure 1 It is a schematic diagram of the overall structure of a dual-driven switchgear relay protection pressure plate structure in the present invention; Figure 2 It is an exploded schematic diagram of the overall structure of a dual-driven switchgear relay protection pressure plate structure in the present invention; Figure 3 It is an exploded schematic diagram of the internal structure of a pressure plate structure for relay protection of a dual-driven power distribution cabinet in the present invention; Figure 4 It is a schematic diagram of the structure of an active connection device of a pressure plate structure for relay protection of a dual-driven distribution cabinet in the present invention; Figure 5 It is an exploded schematic diagram of a manual adjustment component structure of a pressure plate structure for relay protection of a dual-drive power distribution cabinet in the present invention; Figure 6 It is a schematic diagram of the structure of a limit assembly of a pressure plate structure for relay protection of a dual-drive power distribution cabinet in the present invention; Figure 7 A schematic diagram of a protection pressure plate structure of a dual-driven distribution cabinet relay protection pressure plate structure in the present invention; Figure 8 It is a schematic diagram of an explosion of a protective shell structure of a pressure plate structure for relay protection of a dual-driven distribution cabinet in the present invention.

[0019] In the figure: 1. Protective pressure plate; 11. Insulating shell; 12. First connecting column; 13. Second connecting column; 14. Connecting piece; 15. Threaded column; 16. Limit switch; 2. Active connecting device; 21. Servo motor; 22. First sprocket; 23. Chain; 24. Second sprocket; 25. Transmission shaft; 26. Bearing; 27. Connecting seat; 28. First bevel gear; 29. ​​Second bevel gear; 201. Fixed plate; 202. Fixed rod; 3. Manual Adjustment assembly; 31. Mounting plate; 32. Connecting rod; 33. Connecting arm; 34. Fixed block; 35. First universal joint; 36. Movable shaft; 37. Second universal joint; 38. Rotating rod; 39. Spring; 301. Paddle; 4. Limiting assembly; 41. Mounting seat; 42. Rotating shaft; 43. Worm; 44. Worm wheel; 45. Linkage shaft; 46. Limiting rod; 47. Turning handle; 5. Protective shell; 511. Glass plate; 522. Drive switch. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figures 1 to 8 As shown, a dual-drive pressure plate structure for relay protection of a distribution cabinet includes a protection pressure plate 1, a movable connection device 2, a manual adjustment component 3, a limit component 4 and a protection shell 5.

[0022] The protective pressure plate 1 includes a connecting plate, a first connecting column 12, a second connecting column 13 and a connecting piece 14. The two ends of the connecting plate are fixedly connected to the lower parts of the first connecting column 12 and the second connecting column 13 respectively. One end of the connecting piece 14 is a rotating end, which is rotatably connected to the upper part of the first connecting column 12. The other end of the connecting piece 14 is a hanging end, which is provided with a hook structure and is hung with the upper part of the second connecting column 13 through the hook structure.

[0023] The connecting plate, the first connecting column 12, the second connecting column 13 and the connecting piece 14 are respectively covered with an insulating shell 11 at the parts other than the connecting parts. The protective pressing plate 1, the movable connecting device 2, the manual adjustment component 3 and the limit component 4 are all installed in the protective shell 5. When working, the protective shell 5 protects the whole to prevent potential safety hazards and provides corresponding support for the internal components.

[0024] The movable connection device 2 is located on one side of the protective pressure plate 1, and the movable connection device 2 includes a servo motor 21. A first sprocket 22 is fixedly installed at the output end of the servo motor 21. A chain 23 is transmission-connected to one side of the first sprocket 22. A second sprocket 24 is transmission-connected to the other side of the chain 23. A transmission shaft 25 is passed through and fixedly installed on one side of the middle of the second sprocket 24. A first bevel gear 28 is fixedly installed at one end of the transmission shaft 25. The wheel side of the first bevel gear 28 is meshingly connected to the second bevel gear 29. A fixed disk 201 is fixedly installed at the bottom of the second bevel gear 29. Several fixed rods 202 are fixedly installed at the bottom of the fixed disk 201. The multiple fixed rods 202 are plugged and fixed to the sockets set on the rotating end of the insulating shell 11 of the connecting piece 14 in a one-to-one correspondence. The sockets are arranged around the first connecting column 12 as the center. When working, the second bevel gear 29 is driven by the first bevel gear 28 to make the second bevel gear 29 move in a circle. The second bevel gear 29 drives the fixed disk 201 to perform a circular motion, thereby causing the connecting piece 14 to perform a corresponding rotational motion.

[0025] The manual adjustment assembly 3 includes a mounting plate 31. A connecting rod 32 is movably mounted on one side of the mounting plate 31. A connecting arm 33 is fixedly mounted on the top of the connecting rod 32. A fixed block 34 is hinged at one end of the connecting arm 33. A connecting piece 14 is fixedly mounted on one side of the fixed block 34. A first universal joint 35 is fixedly mounted on the bottom of the connecting rod 32. A movable shaft 36 is movably mounted on the bottom of the first universal joint 35. A second universal joint 37 is movably mounted on the bottom end of the movable shaft 36. A rotating rod 38 is fixedly mounted on the bottom of the second universal joint 37. A paddle 301 is fixedly mounted on the bottom of the rotating rod 38. A spring 39 is fixedly mounted on the top of the lower side plate of the mounting plate 31, and the spring 39 is sleeved on the outside of the rotating rod 38, and the top of the spring 39 abuts against the bottom of the second universal joint 37.

[0026] When working, the paddle 301 is pressed down, the spring 39 is deformed by force, and the kinetic energy of the external force is converted into elastic energy for storage. The paddle 301 is driven by the rotating rod 38, the second universal joint 37, the movable shaft 36, the first universal joint 35, the connecting rod 32, the connecting arm 33 and the fixed block 34, so that the connecting piece 14 drives the fixed plate 201 and the second bevel gear 29 to move downward, so that the connection between the first bevel gear 28 and the second bevel gear 29 is interrupted. Keep the pressed state and rotate the paddle 301, and the connecting piece 14 rotates accordingly. After rotating to the preset position, release the paddle 301, the elastic energy stored in the spring 39 is released, the spring 39 returns to its original state, and the transmission between the first bevel gear 28 and the second bevel gear 29 is restored.

[0027] The limit assembly 4 includes a mounting seat 41. A rotating shaft 42 is penetrated and movably mounted on one side of the mounting seat 41. A rotating handle 47 is fixedly mounted on one end of the rotating shaft 42. A worm 43 is penetrated and fixedly mounted on the rotating shaft 42. A worm wheel 44 is transmission-connected to the worm 43. A linkage shaft 45 is penetrated and fixedly mounted on one side of the middle of the worm wheel 44. A limit rod 46 is fixedly mounted on one end of the linkage shaft 45, and the other end of the linkage shaft 45 is connected to the mounting seat 41 through a bearing.

[0028] When working, the handle 47 is shaken to transmit the worm wheel 44 through the worm 43, and the worm wheel 44 drives the linkage shaft 45 to rotate, so that the limit rod 46 fixed on the linkage shaft 45 moves in a circle. During the rotation of the limit rod 46, the operation is stopped after one side of the limit rod 46 abuts against the connecting piece 14, so that the connecting piece 14 can be limited. When not needed, continue to shake the handle 47 to separate the limit rod 46 from the connecting piece 14. The limit assembly 4 is more used in the case where the equipment vibrates greatly, causing the connecting piece 14 and the second connecting column 13 to loosen due to vibration.

[0029] In addition, a threaded column 15 is fixedly installed at the lower part of the insulating shell 11 of the connecting plate, and the lower ends of the threaded column 15 and the first connecting column 12 and the second connecting column 13 all penetrate the protective shell 5 for fixing the entire device on the high-voltage cabinet.

[0030] The limit switch 16 is fixedly mounted on the protective shell 5 and is located on one side of the connecting piece 14. One side of the limit switch 16 is electrically connected to the servo motor 21. When working, the connecting piece 14 contacts the contact head of the limit switch 16 after being hooked to the second connecting column 13, so that the limit switch 16 works and transmits an electrical signal to the servo motor 21 to stop working.

[0031] A glass plate 511 is fixedly mounted on the top of the protective shell 5. Two driving switches 522 for controlling the servo motor 21 to rotate in the forward or reverse directions are fixedly mounted on the top of the protective shell 5. The driving switches 522 are electrically connected to the servo motor 21. The installation of the glass plate 511 by the protective shell 5 facilitates personnel to check the internal operation status, and the driving switches 522 are beneficial to control the servo motor 21.

[0032] The servo motor 21, the mounting plate 31, and the mounting seat 41 are respectively fixedly mounted on the inner wall of the protective shell 5. Two connecting seats 27 are also fixedly mounted on the inner wall of the protective shell 5, and bearings 26 are respectively fixedly mounted on one side of the two connecting seats 27, and the inner wall of the bearing 26 is rotatably connected to the transmission shaft 25; A method for using a dual-drive pressure plate structure for relay protection of a power distribution cabinet comprises the following steps: Step 1: Electric drive works: The servo motor 21 is driven by pressing the driving switch 522. When the servo motor 21 is working, it drives the first sprocket 22 to rotate, and the chain 23 connected to the first sprocket 22 drives the second sprocket 24, so that the second sprocket 24 drives the transmission shaft 25 to rotate relatively. At this time, the first bevel gear 28 at the other end of the transmission shaft 25 is linked to the second bevel gear 29, and the direction of the rotational movement is changed, so that the second bevel gear 29 drives the fixed disk 201 to rotate accordingly. The bottom of the fixed disk 201 is fixed with a connecting piece 14 through a fixing rod 202, so that the fixing rod 202 is linked to the connecting piece 14, so that the connecting piece 14 moves in a circle with the first connecting column 12 as the axis. When driving the servo motor 21, the forward or reverse driving switch 522 can be selected according to the needs, and the connecting piece 14 can be selectively connected or disconnected with the second connecting column 13. When the connecting piece 14 is connected, one side of the connecting piece 14 contacts the limit switch 16. When the connecting piece 14 moves to a certain distance, the limit switch 16 is triggered to control the servo motor 21 to cut off the power.

[0033] Step 2: Manual drive to work: When the movable connection device 2 fails, the connecting piece 14 cannot be driven to move by the servo motor 21. At this time, the staff presses down the paddle 301, and the rotating rod 38 drives the movable shaft 36 to move through the second universal joint 37. One end of the movable shaft 36 rotates at the connection point of the first universal joint 35. When it moves to the maximum angle, it is limited and cannot move. At this time, the movable shaft 36 drives the first universal joint 35 to move up and down accordingly, and the first universal joint 35, the connecting rod 32 and the connecting arm 33 drive the connecting piece 14, the fixed plate 201 and the second bevel gear 29 connected on one side to move down accordingly, so that the connection between the first bevel gear 28 and the second bevel gear 29 is interrupted. While keeping the pressure down, the paddle 301 is rotated, so that the connecting rod 32 is rotated, and the hinge between the connecting arm 33 and the fixed block 34 generates a linkage with the connecting piece 14, so that the connecting piece 14 also moves in a circle with the first connecting column 12 as the axis, and the connecting piece 14 is connected or disconnected with the second connecting column 13.

[0034] Step 3: Limit protection: When the connecting piece 14 is docked with the second connecting column 13, other factors may cause the connection between the connecting piece 14 and the second connecting column 13 to be interrupted, thereby failing to achieve the effect of trip protection. The rotating shaft 42 is rotated by a person to rotate the handle 47 to drive the synchronous rotation of the worm 43 on the rotating shaft 42. The worm 43 cooperates with the worm wheel 44 during work to transmit the rotational power to the linkage shaft 45. At this time, the linkage shaft 45 drives the limit rod 46 to rotate, and the limit rod 46 limits the connecting piece 14 on one side. There is self-locking between the worm 43 and the worm wheel 44. When the lead angle of the worm 43 is less than the equivalent friction angle between the meshing gear teeth, the mechanism has self-locking properties and can achieve reverse self-locking, that is, only the worm 43 can drive the worm wheel 44, and the worm wheel 44 cannot drive the worm 43, which plays a safety protection role.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A dual-drive switchboard relay protection pressure plate structure, comprising a protection pressure plate (1), the protection pressure plate (1) comprising a connecting plate, a first connecting column (12), a second connecting column (13) and a connecting piece (14), the two ends of the connecting plate being fixedly connected to the lower parts of the first connecting column (12) and the second connecting column (13), respectively, one end of the connecting piece (14) being a rotating end, the rotating end being rotatably connected to the upper part of the first connecting column (12), the other end of the connecting piece (14) being a hanging end, the hanging end being provided with a hook structure, and being hung to the upper part of the second connecting column (13) through the hook structure; the characteristics are: It also includes a movable connection device (2), a manual adjustment component (3), a protective shell (5) and a limit switch (16); the connecting plate, the first connecting column (12), the second connecting column (13) and the connecting piece (14) are respectively covered with an insulating shell (11) at the parts other than the connection points; the movable connection device (2), the manual adjustment component (3) and the limit switch (16) are installed in the protective shell (5); a driving switch (522) for controlling the servo motor (21) to rotate in forward and reverse directions is arranged outside the protective shell (5); and a glass plate (511) for observing the internal situation is arranged on the protective shell (5); The movable connection device (2) comprises a servo motor (21) and a transmission assembly, wherein the servo motor (21) is connected to the insulating shell (11) outside the connecting piece (14) via the transmission assembly; a fixed disk (201) is fixedly mounted on the transmission assembly; a plurality of fixed rods (202) are fixedly mounted on the bottom of the fixed disk (201); the plurality of fixed rods (202) are plugged into sockets provided on the rotating end of the insulating shell (11) of the connecting piece (14) in a one-to-one correspondence; the sockets are centered on the first connecting column (12). The fixed disk (201) is rotated under the drive of the servo motor (21) and the transmission assembly and simultaneously drives the connecting piece (14) to rotate around the first connecting column (12); the limit switch (16) is fixedly mounted on one side of the connecting piece (14); after the connecting piece (14) is connected to the second connecting column (13), it contacts the limit switch (16) and triggers the limit switch (16); the triggered limit switch (16) sends a stop rotation instruction to the servo motor (21), causing the servo motor (21) to stop rotating; The manual adjustment component (3) comprises a paddle (301) and a transmission rod component; the upper end of the transmission rod component is fixedly connected to the rotating end of the connecting piece (14), and the lower end of the transmission rod component is connected to one end of the paddle (301); the other end of the paddle (301) extends outward from a long hole provided on the protective shell (5) for manual adjustment; when the movable connection device (2) is effective, the manual adjustment component (3) moves with the connecting piece (14); when the movable connection device (2) is ineffective, the paddle (301) is pulled downward, and the paddle (301) drives the connecting piece (14) to move downward through the transmission rod component, so that the transmission components on the upper part of the fixed plate (201) are separated, and then the paddle (301) is rotated so that the connecting piece (14) is connected to or separated from the upper part of the second connecting column (13) under manual control.

2. According to claim 1, a dual-drive switchboard relay protection pressure plate structure is characterized in that: The transmission assembly comprises a first sprocket (22), a chain (23), a second sprocket (24), a transmission shaft (25), a bearing (26), a first bevel gear (28), a second bevel gear (29) and a fixed plate (201); the axis of the first sprocket (22) is fixedly connected to the output end of the servo motor (21), the first sprocket (22) is transmission-connected to one side of the chain (23); the other side of the chain (23) is transmission-connected to the second sprocket (24); one end of the transmission shaft (25) passes through the axis of the second sprocket (24) and is fixed, and the other end of the transmission shaft (25) is fixedly mounted with the first bevel gear (28); the first bevel gear (28) is meshingly connected to the second bevel gear (29); and the lower part of the second bevel gear (29) is fixedly mounted with the fixed plate (201).

3. According to claim 2, a dual-drive switchboard relay protection pressure plate structure is characterized in that: Two connection seats (27) are fixedly mounted in the inner cavity of the protective shell (5), and bearings (26) are fixedly mounted on one side of the two connection seats (27); the inner walls of the bearings (26) are rotatably connected to the transmission shaft (25).

4. The dual-drive switchboard relay protection pressure plate structure according to claim 1 is characterized in that: The transmission rod assembly comprises a mounting plate (31), a connecting rod (32), a connecting arm (33), a fixed block (34), a first universal joint (35), a movable shaft (36), a second universal joint (37), a rotating rod (38) and a spring (39); one end of the connecting arm (33) is hinged to one end of the fixed block (34), the other end of the connecting arm (33) is vertically arranged with the connecting rod (32) and fixedly connected to one end of the connecting rod (32); the other end of the fixed block (34) is fixedly connected to the rotating end of the connecting piece (14); the other end of the connecting rod (32) is fixedly connected to the bracket part of the first universal joint (35); one end of the movable shaft (36) is rotatably connected to the cross shaft of the first universal joint (35), and the movable shaft (36) is rotatably connected to the cross shaft of the first universal joint (35). ) is rotatably connected to the cross shaft of the second universal joint (37); the bracket portion of the second universal joint (37) is fixedly connected to one end of the rotating rod (38); a spring (39) is sleeved on the outside of the rotating rod (38), and the other end of the rotating rod (38) is vertically arranged and fixedly connected to the paddle (301); the mounting plate (31) is a U-shaped structure, one end of the mounting plate (31) is provided with an annular sleeve, the annular sleeve is movably sleeved on the outside of the upper end of the connecting rod (32), and the other end of the mounting plate (31) is provided with a through hole, which is sleeved on the outside of the lower end of the rotating rod (38); one end of the spring (39) abuts against the bracket portion of the second universal joint (37), and the other end of the spring (39) abuts against the inner wall of the other end of the mounting plate (31).

5. The dual-drive switchboard relay protection pressure plate structure according to claim 1 is characterized in that: It also includes a limiting assembly (4) installed in the protective shell (5); the limiting assembly (4) includes a manual drive assembly and a limiting rod (46) connected to the manual drive assembly; the manual drive assembly drives the limiting rod (46) so that the limiting rod (46) pushes the hook structure of the connecting piece (14) to fit tightly with the second connecting column (13).

6. The dual-drive switchboard relay protection pressure plate structure according to claim 5 is characterized in that: The manual drive assembly comprises a mounting seat (41), a rotating shaft (42), a worm (43), a worm wheel (44), a linkage shaft (45) and a rotating handle (47); the mounting seat (41) is fixedly mounted on the protective shell (5); two mounting ears for mounting the rotating shaft (42) are provided on an upper portion of one side of the mounting seat (41); one end of the rotating shaft (42) passes through the mounting ear and is rotatably connected to the mounting ear, the other end of the rotating shaft (42) is fixedly mounted with a rotating handle (47), and the middle part of the rotating shaft (42) is fixedly sleeved with a worm (43); the worm (43) is meshingly connected to the worm wheel (44) located at the lower part thereof; the linkage shaft (45) is fixedly mounted at the center of the worm wheel (44); one end of the linkage shaft (45) is vertically arranged and fixedly connected to a limit rod (46), and the other end of the linkage shaft (45) is rotatably connected to the mounting seat (41).

7. A method for using a dual-driven switchboard relay protection pressure plate structure, used to operate the dual-driven switchboard relay protection pressure plate structure according to claim 1, characterized in that: There are two modes: electric drive and manual drive. The electric drive includes the following steps: S1, complete the connection; The forward rotation drive switch (522) is pressed to start the servo motor (21), and the servo motor (21) drives the fixed disk (201) to rotate through the transmission assembly. The fixed disk (201) applies the rotation state to the connecting piece (14), so that the connecting piece (14) rotates clockwise around the first connecting column (12) until the hook of the connecting piece (14) is hooked with the second connecting column (13), thereby completing the connection state; S2, perform connection limit; After the connecting piece (14) is hooked up, it contacts the actuator of the limit switch (16), and the limit switch (16) sends an electrical signal to the servo motor (21) to interrupt its power; the position of the actuator is preset on the limit switch (16), thereby controlling the rotation distance of the connecting piece (14) after hooking up; S3, the disconnected state returns to the original position; When the reverse rotation drive switch (522) is pressed, the servo motor (21) is turned on and enters the interruption state, the servo motor (21) rotates counterclockwise, and the connecting piece (14) rotates counterclockwise around the first connecting column (12) as an axis through the transmission assembly and the fixed disk (201) until it returns to its original position and stops; Among them, manual driving includes the following steps: S1, pulling the paddle (301) downward, the paddle (301) drives the connecting piece (14) to move downward through the transmission rod assembly, so that the transmission assemblies on the upper part of the fixed plate (201) are disengaged; S2. While keeping the pull down, rotate the paddle (301), and drive the connecting piece (14) to be hooked or disconnected from the upper part of the second connecting column (13) through the transmission rod assembly.

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