High-voltage switchgear operating mechanism

Abstract

The present invention relates to an operating mechanism for a high-voltage switchgear, comprising a mounting frame, a manual operating end, and a control end. The control end controls the opening and closing states of the manual operating end via a linkage mechanism. The mounting frame is provided with a drive mechanism and an electric operating mechanism connected to the drive mechanism. The electric operating mechanism includes a drive motor, which is connected to the drive mechanism via a power transmission mechanism. The manual operating end is connected to the drive mechanism via a gear transmission mechanism. The power transmission mechanism includes a power output shaft, a worm gear, and a clutch. The power output shaft is connected to the drive mechanism in a transmission manner. The worm gear is sleeved on the power output shaft and driven to rotate by the drive motor. The worm gear and the power output shaft are connected via a clutch. The electric operating force output is controlled by the clutch, and has the advantages of reasonable and compact structure, safety and reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, in particular to an operating mechanism for a high-voltage switch cabinet. Background Art

[0002] Traditional high-voltage switchgear features a wide variety of mechanical interlocking mechanisms, often with complex mechanical structures and insufficient operational safety. To address these technical issues, the applicant has developed improved designs, such as the Chinese patent application CN201110090537.8, titled "A High-Voltage Switchgear Operating Mechanism." This design utilizes a single manual operating terminal, resulting in a compact structure and safe and reliable operation. However, the mechanism relies solely on manual operation, hindering automated operation. While the literature mentions the possibility of electric operation, the limited assembly space for this type of operating mechanism and the existing transmission structure make it difficult to effectively integrate electric and manual operation. Summary of the Invention

[0003] The purpose of the invention is to overcome the defects of the prior art, and to provide a high-voltage switchgear operating mechanism with a reasonable and compact structure and electric operating force output controlled by a clutch, which has the advantages of safety and reliability.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A high-voltage switchgear operating mechanism comprises a mounting frame, a manual operating end and a control end, wherein the control end controls the opening and closing states of the manual operating end via a linkage mechanism, the mounting frame is provided with a driving mechanism and an electric operating mechanism connected to the driving mechanism, the electric operating mechanism comprises a driving motor, the driving motor is connected to the driving mechanism via a power transmission mechanism, and the manual operating end is connected to the driving mechanism via a gear transmission mechanism, and is characterized in that: the power transmission mechanism comprises a power output shaft, a worm gear and a clutch, the power output shaft is connected to the driving mechanism, the worm gear is sleeved on the power output shaft, the worm gear is driven to rotate by the driving motor, and the worm gear and the power output shaft are connected via a clutch.

[0006] By adopting the above technical solution, the drive motor drives the power output shaft to rotate through the worm gear and the clutch, thereby electrically controlling the drive mechanism. The clutch can realize the power connection and disconnection control between the drive motor and the drive mechanism, thereby facilitating the manual and electric operation switching of the high-voltage switchgear, and has the advantages of safety and reliability.

[0007] Preferably, the clutch comprises a clutch disc and a driving disc that engage and disengage. The clutch disc slidably engages axially on the power output shaft, and the driving disc is fixed to the worm gear. The clutch disc is linked to the power output shaft in the direction of rotation. The clutch disc is coupled to a clutch operating mechanism, which comprises a push-pull rod slidably engaged on a mounting frame, the push-pull rod sliding perpendicularly to the power output shaft. A reversing transmission assembly is provided between the push-pull rod and the clutch disc, which drives the clutch disc to slide via the push-pull rod. With this structural design, the push-pull rod is pushed and pulled to control the sliding of the clutch disc, which is more labor-saving and compact.

[0008] The cam is fixedly connected to the push-pull rod and slides with the push-pull rod, and the reversing push-pull plate is provided with a pushing protrusion protruding along the sliding direction of the clutch disc and sliding with the push-pull rod, and the reversing push-pull plate is provided with a pushing protrusion protruding along the sliding direction of the clutch disc and sliding with the push-pull rod, and the pushing protrusion is provided with a driving inclined surface extending obliquely along the sliding direction of the reversing push-pull plate, and the driving inclined surface guides the driven plate to slide, and the driven plate is supported on the pushing protrusion to push the clutch disc and keep it in the disengaged position with the active disc, and the clutch disc can rotate relative to the driven plate, and the driven plate pushes and cooperates with the clutch disc, and the driven plate is provided with a protrusion clearance through-hole for the pushing protrusion to enter. Under this structural design, the push-pull rod pushes the reversing push plate to slide, the push protrusion slides out of the protrusion clearance hole, and the driving inclined surface on the push protrusion pushes the driven plate, forcing the driven plate to slide, thereby pushing the clutch disc to slide axially until it disengages from the active disc; the push-pull rod pushes the reversing push plate to slide until the push protrusion enters the protrusion clearance hole, and the driven plate moves under the guidance of the driving inclined surface and the drive of the pressure spring, and the clutch disc moves to the engagement position with the active disc; the reversing push plate and the driven plate are linked by the push protrusion and the protrusion clearance hole, making full use of the thickness space of the driven plate and having a compact structure; the pressure spring realizes the linkage between the clutch disc, the reversing push plate and the driven plate, and ensures that the clutch disc is stably and reliably located in the engagement position with the active disc.

[0009] Preferably, the driven plate is provided with an axial hole for the clutch plate to pass through, and the driven plate is supported on the clutch plate via the axial hole. A positioning guide finger is provided on the other end of the driven plate opposite to the end connected to the push-pull rod. A positioning plate is fixed to the mounting frame, and the positioning plate is provided with a guide groove extending in the sliding direction of the driven plate. The positioning guide finger of the driven plate is aligned with the guide groove. With this structural design, the driven plate is supported by the clutch plate and the driven plate is engaged with the guide groove via the positioning guide finger, which has the advantages of reliable positioning of the driven plate and a compact structure.

[0010] Preferably, the pushing protrusion is guided and matched with the protrusion giving way through hole. Under this structural design, the protrusion giving way through hole not only avoids the pushing protrusion, but also the pushing protrusion is placed in the protrusion giving way through hole to form positioning and guidance, and the matching is reliable.

[0011] The lower fork arm is provided with a first fork arm and a second fork arm is provided with a third fork arm, and the lower fork arm is provided with a third fork arm. Under this structural design, the reversing push plate is driven by the upper fork arm and the lower fork arm, and the lower fork arm is arranged on both radial sides of the clutch disc. The reversing push plate pushes the driven plate smoothly, thereby making the action of the clutch disc stable and reliable.

[0012] Preferably, the fork guide of the reversing push plate is matched with the clutch disc. Under this structural design, the positioning and guiding of the reversing push plate is realized, which has the advantages of stable and reliable operation and compact structure.

[0013] Preferably, the mounting frame is provided with a gear frame for positioning and mounting the worm gear, the gear frame includes two gear mounting plates arranged opposite to each other and a fixed connecting piece connecting the two gear mounting plates, the two gear mounting plates are respectively arranged at both ends of the axial direction of the worm gear, the gear mounting plates are provided with gear supporting holes, the worm gear is positioned and rotated in the gear supporting holes, the gear mounting plates are provided with a push-pull rod avoidance groove extending along the sliding direction of the push-pull rod, one end of the push-pull rod avoidance groove extending in a direction of extension is a cut-off end with a stop surface, a stop pin is fixed on the gear mounting plate with the push-pull rod avoidance groove, the lateral part of the push-pull rod is located in the push-pull rod avoidance groove, the end of the push-pull rod connected to the driven plate is stopped by the stop surface to constitute a limit on the disengagement position of the push-pull rod driven clutch, the reversing push plate is provided with a step notch, the step notch on the reversing push plate is stopped by the stop pin to constitute a limit on the engagement position of the push-pull rod driven clutch Under this structural design, the gear mounting plate avoids the push-pull rod, has the advantage of a compact structure, and utilizes the thickness of the gear mounting plate to form a structure for stopping and limiting the push-pull rod; a step notch is provided on the reversing push plate to stop and limit the stop pin on the gear mounting plate.

[0014] Preferably, the linkage mechanism includes a movable baffle for opening and closing the manual operating end, the movable baffle being linearly slidably engaged on the mounting frame along a direction perpendicular to the push-pull rod, the movable baffle having a manual opening position corresponding to the opening manual operating end and a closing position corresponding to the closing manual operating end along the sliding direction, the movable baffle being provided with a locking tongue that slides with the movable baffle, the push-pull rod being provided with a locking notch, the push-pull rod being provided with a locking notch, the locking notch being provided on the movement path of the locking tongue of the movable baffle when the push-pull rod is in a position corresponding to the disengagement of the driving clutch disc from the active disc, and the locking tongue being inserted into the locking notch when the movable baffle slides to the manual opening position, and the locking tongue being removed from the locking notch when the movable baffle slides to the closed position, the push-pull rod being provided with a position corresponding to the dynamic engagement of the driving clutch disc with the active disc, and the push-pull rod being provided with a stopper for the movable baffle to slide open the manual operating end. With this structural design, the movable baffle realizes manual and automatic interlocking, making operation safer and more reliable, and the practical interlocking of the locking tongue formed on the movable baffle with the push-pull rod has the advantages of simple and compact structure and reliable interlocking.

[0015] Preferably, the manual operating end includes an operating disk with an operating port, and the gear transmission mechanism includes a first bevel gear, a second bevel gear, and a spur gear. The first bevel gear is installed on the mounting frame via a fixed shaft, and the operating disk is fixedly connected to the first bevel gear, and the first bevel gear is meshed with the second bevel gear. The second bevel gear is provided on the mounting frame via a supporting shaft, and one end of the fixed shaft is supported on the supporting shaft, and the fixed shaft and the supporting shaft are arranged perpendicularly. The second bevel gear is fixed on the spur gear, and the power output shaft is arranged parallel to the supporting shaft. An output gear is fixed on the power output shaft, and the output gear is meshed with the spur gear. Under this structural design, the power output shaft cooperates with the operating end through the output gear and the spur gear to achieve power output, which is convenient for installation and arrangement, avoids connection with the drive mechanism and avoids interference with the installation position, and has the advantages of compact structure and stable and reliable transmission.

[0016] The present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of an operating mechanism for a high-voltage switchgear according to a specific embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the operating mechanism of a high-voltage switchgear according to a specific embodiment of the present invention;

[0019] Figure 3 Schematic diagram of the installation structure of the electric operating mechanism and the movable baffle in a specific embodiment of the present invention;

[0020] Figure 4 Schematic diagram of the structure of the electric operating mechanism according to a specific embodiment of the present invention;

[0021] Figure 5 A partial exploded view of an electric operating mechanism according to a specific embodiment of the present invention;

[0022] Figure 6 This is a schematic structural diagram of a driven plate according to a specific embodiment of the present invention;

[0023] Figure 7 It is a structural schematic diagram of a reversing push plate according to a specific embodiment of the present invention. DETAILED DESCRIPTION

[0024] See attached Figures 1 to 7The present invention discloses an operating mechanism for a high-voltage switchgear, comprising a mounting frame 1, a manual operating terminal 2 and a control terminal 3, wherein the control terminal 3 controls the opening and closing states of the manual operating terminal 2 via a linkage mechanism 4, and the mounting frame 1 is provided with a driving mechanism (not shown) and an electric operating mechanism 5 connected to the driving mechanism. The driving mechanism described in the present invention comprises a transmission shaft rotatably arranged on the mounting frame, a transmission wheel arranged on the transmission shaft, an auxiliary switch transmission structure for driving an auxiliary switch connected to the transmission wheel, a rear door lock transmission structure for driving a rear door lock, and a groove wheel mechanism for driving an isolating switch and a grounding switch connected to the transmission shaft. The electric operating mechanism 5 comprises a driving motor 51, which is connected to the driving mechanism via a power transmission mechanism, and the manual operating terminal 2 is connected to the driving mechanism via a gear transmission mechanism 6. In order to make the structure of the gear transmission mechanism compact, the present invention preferably adopts: the gear transmission mechanism 6 comprises a first bevel gear 61, a second bevel gear 62, a second bevel gear 63 and a second bevel gear 64. Bevel gear 62 and spur gear 63, the first bevel gear 61 is mounted on the mounting frame 1 via a fixed shaft 64, the manual operating end 2 includes an operating disk 21 with an operating port, the operating disk 21 is fixedly connected to the first bevel gear 61, the first bevel gear 61 is meshed with the second bevel gear 62, the second bevel gear 62 is provided on the mounting frame 1 via a supporting shaft 65, one end of the fixed shaft 64 is supported on the supporting shaft 65, the fixed shaft 64 and the supporting shaft 65 are arranged vertically, the second bevel gear 62 is fixed on the spur gear 63, the power transmission mechanism includes a dynamic The power output shaft 52, the worm gear 53 and the clutch 56 are connected to the driving mechanism. An output gear 55 is fixed to the power output shaft 52. The power output shaft 52 is arranged parallel to the support shaft 65. The output gear 55 on the power output shaft 52 meshes with the spur gear 63. The worm gear 53 is sleeved on the power output shaft 52. The worm gear 53 is driven to rotate by the drive motor 51. A worm is provided at the output end of the drive motor 51 to mesh with the worm gear 53. The worm gear 53 is connected to the power output shaft 52 via the clutch 56. The drive motor drives the power output shaft to rotate through the worm gear and the clutch, thereby electrically controlling the drive mechanism. The clutch can realize the power connection and disconnection control between the drive motor and the drive mechanism, thereby facilitating the switching between manual and electric operation of the high-voltage switchgear, and has the advantages of safety and reliability.

[0025] Among them, the clutch 56 includes a clutch disc 561 and an active disc 562 that are engaged and engaged. The clutch disc 561 is axially slidably engaged on the power output shaft 52, and the active disc 562 is fixed on the worm gear 53. The clutch disc 561 is linked to the rotation direction of the power output shaft 52. A convex tooth 5611 is convexly provided in the central shaft hole on the clutch disc 561, and a movable guide groove 521 is provided on the power output shaft 52, which is guided by the convex tooth 5611 and constitutes a linkage between the clutch disc 561 and the power output shaft 52 in the rotation direction. The clutch disc 561 is equipped with a clutch operating mechanism 57, and the clutch operating mechanism 57 includes a push-pull rod 571 that is slidably engaged on the mounting frame 1. The sliding direction of the push-pull rod 571 is perpendicular to the power output shaft 52. A reversing transmission component is provided between the push-pull rod 571 and the clutch disc 561, which drives the clutch disc 561 to slide through the push-pull rod 571. The push-pull operation uses a push-pull rod to control the sliding of the clutch disc, which is more labor-saving and compact. Of course, as a feasible solution of the present invention, the clutch operation can also adopt electromagnetic drive or shift fork to shift structures; however, the push-pull operation is more labor-saving and compact. To ensure that the clutch disc and the power output shaft are reliably matched, the clutch disc has an axially extending sleeve portion, the convex teeth extend into the sleeve portion, and the sleeve portion extends into the central shaft hole of the worm gear. The sleeve portion ensures the axial length of the clutch disc, ensuring that the clutch disc can move reliably on the power output shaft and the clutch disc and the power output shaft are reliably linked. The active disc 562 is integrally formed on the end face of the worm gear. The active disc includes engaging protrusions 5621 distributed circumferentially on the end face of the worm gear. The clutch disc is provided with a power engagement surface, and the power engagement surface is provided with an engaging groove 5612. Of course, the clutch disc and active disc structure of the clutch can also adopt other structural forms. Those skilled in the art can make corresponding choices based on existing technology.

[0026] The reversing transmission assembly includes a pressure spring 572, a reversing push plate 573 and a driven plate 574 that slides along the sliding direction of the clutch disc 561 and is fitted on the mounting frame 1. The pressure spring 572 abuts against the clutch disc 561 and provides a spring driving force that drives the clutch disc 561 to slide to a position where it is dynamically engaged with the active disc 562. A stepped hole for inserting the pressure spring 572 is provided on the clutch disc 561 to achieve compact assembly. The reversing push plate 573 is fixedly connected to the push-pull rod 571 and slides with the push-pull rod 571. The reversing push plate 573 is provided with a push protrusion 5731 that protrudes along the sliding direction of the clutch disc 561. The pushing protrusion 5731 is provided with a driving inclined surface 57311 which extends obliquely along the sliding direction of the reversing pushing plate 573. The driving inclined surface 57311 guides the driven plate 574 to slide. The driven plate 574 corresponds to the driving inclined surface 57311 under the spring driving force of the pressing spring 572. The driven plate 574 is supported on the pushing protrusion 5731 to realize that the driven plate 574 pushes the clutch disk 561 to remain in a disengaged position from the active disk 562. The clutch disk 561 can rotate relative to the driven plate 574. The driven plate 574 pushes and cooperates with the clutch disk 561. The driven plate 574 is provided with a protrusion clearance through hole 5741 for the pushing protrusion 5731 to enter. The push-pull rod 571 pushes the reversing push plate 573 to slide, and the push protrusion 5731 slides out of the protrusion clearance hole 5741. The driving inclined surface 57311 on the push protrusion 5731 pushes the driven plate 574, forcing the driven plate 574 to slide, thereby pushing the clutch disc 561 to slide axially until it disengages the active disc 562. The driven plate 574 is supported on the push protrusion 5731 to achieve the driven plate 574 pushing the clutch disc 561 to remain in the clutch position. The pressure spring 572 stores energy and ensures that the clutch disc, the driven plate and the driving inclined surface are reliably matched. The push-pull rod 571 pushes the reversing push plate 573 Plate 573 slides until the push protrusion 5731 enters the protrusion clearance hole 5741. The driven plate 574 moves under the guidance of the driving inclined surface 57311 and the drive of the pressure spring 572, and the clutch disc 561 moves to the engagement position with the driving disc 562. The push protrusion 5731 and the protrusion clearance hole 5741 cooperate to achieve the linkage between the reversing push plate and the driven plate, fully utilizing the thickness space of the driven plate and achieving a compact structure. The pressure spring realizes the linkage between the clutch disc, the reversing push plate, and the driven plate, and ensures that the clutch disc is stably and reliably positioned in the engagement position with the driving disc. Of course, as a feasible solution of the present invention, the reversing push plate can be provided with an inclined groove extending obliquely along the sliding direction of the driven plate, and the driven plate can be provided with a protruding finger that cooperates with the inclined groove. The driven plate and the clutch disc can be achieved by using a spring or annular groove to cooperate (to achieve relative rotation of the clutch disc and the driven plate in the rotational direction and linkage in the axial direction). And the pushing convex block 5731 is guided and matched with the convex block giving way through hole 5741. The convex block giving way through hole not only avoids the pushing convex block, but also the pushing convex block 5731 is placed in the convex block giving way through hole 5741 to form positioning and guidance, and the matching is reliable.

[0027] To achieve a compact structure and stable and reliable operation, the driven plate 574 is provided with an axial hole 5742 for the clutch plate 561 to pass through. The driven plate 574 is supported on the clutch plate 561 via the axial hole 5742. A positioning guide finger 5743 is provided at the other end of the driven plate 574, opposite the end connected to the push-pull rod 571. A positioning plate 11 is fixed to the mounting frame 1. The positioning plate 11 is provided with a guide groove 111 extending along the sliding direction of the driven plate 574. The positioning guide finger of the driven plate engages in the guide groove. The driven plate is supported by the clutch plate, and the driven plate engages with the guide groove via the positioning guide finger. This has the advantages of reliable driven plate positioning and a compact structure.

[0028] Furthermore, the reversing push plate 573 is fork-shaped and includes a base plate 573-1 fixedly connected to the push-pull rod 571. The base plate 573-1 is provided with an upper fork arm 573-2 and a lower fork arm 573-3 extending along the sliding direction of the reversing push plate 573. There is a fork opening 573-4 between the upper fork arm 573-2 and the lower fork arm 573-3. The fork opening 573-4 avoids the clutch disc 561. The upper fork arm 573-2 and the lower fork arm 573-3 are both provided with a push protrusion 5731. The push protrusion 5731 includes a push protrusion 5731 provided on the upper fork arm 573 -2, and second and third thrust protrusions are provided on the lower fork arm 573-3. The second and third thrust protrusions are distributed along the extension direction of the lower fork arm 573-3. The driven plate 574 is provided with protrusion clearance holes 5741 that mate with the first, second, and third thrust protrusions one-to-one. The protrusion clearance holes 5741 that mate with the two thrust protrusions on the lower fork arm 573-3 are located on either side of a virtual centerline a perpendicular to the sliding direction of the reversing thrust plate 573 and intersecting the central axis of the clutch disc 561. The reversing thrust plate is driven by the upper and lower forks, with the lower fork arm being located on either radial side of the clutch disc. This allows the reversing thrust plate to push the driven plate smoothly, ensuring stable and reliable clutch disc operation. The upper fork arm is shorter than the lower fork arm, and the driven plate has a notched corner on the upper right side to avoid the driving mechanism. An extension groove body is extended on the guide groove 111 of the positioning plate 11 for the lower fork arm 573 - 3 to be inserted into, and the extension groove body is used to avoid the lower fork arm 573 - 3.

[0029] The fork 573-4 of the reversing push plate 573 is guided and matched on the clutch disc 561. The positioning and guiding of the reversing push plate is realized, and the advantages of stable and reliable action and compact structure are achieved.

[0030] A gear rack for positioning and mounting the worm gear 53 is provided on the mounting frame 1, and the gear rack includes two gear mounting plates 12 arranged opposite to each other and fixed connecting members (such as bolts, or pins, etc.) connecting the two gear mounting plates 12. The two gear mounting plates 12 are respectively arranged at the axial ends of the worm gear 53, and the gear mounting plates 12 are provided with gear support holes. The worm gear 53 is positioned and rotated in the gear support holes, wherein the upper fork arm 573-2 and the lower fork arm 573-3 positioning guide are matched between the driven plate 574 and the gear mounting plate 12 to position the reversing push plate 573; a push rod extending along the sliding direction of the push-pull rod 571 is provided on the gear mounting plate 12. The pull rod avoidance groove 121 has one end extending in a direction of extension, forming a stopper end with a stop surface 1211. A stop pin 13 is fixed to the gear mounting plate 12 with the push rod avoidance groove 121. The lateral portion of the push rod 571 is located within the push rod avoidance groove 121. The end of the push rod 571 connected to the driven plate 574 is stopped by the stop surface 1211, constituting a limit for the push rod 571 to drive the clutch disengaged position. The reversing push plate 573 is provided with a stepped notch 5732, which is stopped by the stop pin 13, constituting a limit for the push rod 571 to drive the clutch engaged position. The gear mounting plate achieves avoidance for the push rod, has the advantage of a compact structure, and utilizes the thickness of the gear mounting plate to form a stopper for the push rod. The stepped notch on the reversing push plate is provided with a stopper for the gear mounting plate.

[0031] In order to realize the interlocking function between manual operation and electric operation, the movable baffle 41 used to open and close the manual operation end 2 in the previous linkage mechanism 4 is used. The movable baffle 41 slides linearly along the direction of the vertical push-pull rod 571 and fits on the mounting frame 1. The movable baffle 41 has a manual opening position corresponding to opening the manual operation end 2 and a closing position corresponding to closing the manual operation end 2 along the sliding direction. The structure of the control end 3 and the linkage mechanism 4 in the present invention is the existing technology. Those skilled in the art can realize the corresponding function based on the existing technology, so the specific structure of the control end and the linkage mechanism is not repeated here. The improvement is that the movable baffle 41 is provided with a locking tongue 411 that slides with the movable baffle 41. The push-pull rod 571 is provided with a locking notch 5710. When the push-pull rod 571 is in the position corresponding to the disengagement of the driving clutch disc 561 from the active disc 562, the locking notch 5710 corresponds to the motion path of the locking tongue 411 of the movable baffle 41. When the movable baffle 41 slides to the manual open position, the locking tongue 411 is inserted into the locking notch 5710. When the movable baffle 41 slides to the closed position, the locking tongue 411 exits the locking notch 5710. When the push-pull rod 571 is in the position corresponding to the dynamic engagement of the driving clutch disc 561 with the active disc 562, the movable baffle 41 is in the closed position, and the push-pull rod 571 prevents the movable baffle 41 from sliding open the manual operating end 2. The movable baffle achieves manual and automatic interlocking, making operation safer and more reliable. Furthermore, the locking tongue formed on the movable baffle is practically interlocked with the push-pull rod, resulting in a simple, compact structure and reliable interlocking. In this specific embodiment, the locking tongue piece is composed of two spaced-apart and parallel-arranged pieces, and two cutouts are provided on the outer peripheral side of the push-pull rod to form a locking notch.

Claims

1. A high-voltage switchgear operating mechanism, comprising a mounting frame, a manual operating terminal, and a control terminal, wherein the control terminal controls the opening and closing states of the manual operating terminal via a linkage mechanism, the mounting frame being provided with a drive mechanism and an electric operating mechanism connected to the drive mechanism, the electric operating mechanism comprising a drive motor connected to the drive mechanism via a power transmission mechanism, and the manual operating terminal being connected to the drive mechanism via a gear transmission mechanism, characterized in that: The power transmission mechanism includes a power output shaft, a worm gear and a clutch. The power output shaft is connected to the driving mechanism. The worm gear is sleeved on the power output shaft. The worm gear is driven to rotate by the driving motor. The worm gear and the power output shaft are connected via a clutch. The manual operating end includes an operating disk with an operating port. The gear transmission mechanism includes a first bevel gear, a second bevel gear and a spur gear. The first bevel gear is installed on the mounting frame via a fixed shaft. The operating disk is fixedly connected to the first bevel gear. The first bevel gear is meshed with the second bevel gear. The second bevel gear is arranged on the mounting frame via a supporting shaft. One end of the fixed shaft is supported on the supporting shaft. The fixed shaft and the supporting shaft are arranged vertically. The second bevel gear is fixed on the spur gear. The power output shaft is arranged parallel to the supporting shaft. An output gear is fixed on the power output shaft, and the output gear is meshed with the spur gear.

2. The high-voltage switchgear operating mechanism according to claim 1, characterized in that: The clutch includes a clutch disc and an active disc that are engaged and disengaged. The clutch disc is axially slidably engaged on the power output shaft, and the active disc is fixed on the worm gear. The clutch disc is linked to the rotation direction of the power output shaft. The clutch disc is equipped with a clutch operating mechanism. The clutch operating mechanism includes a push-pull rod that is slidably engaged on the mounting frame. The sliding direction of the push-pull rod is perpendicular to the power output shaft. A reversing transmission component is provided between the push-pull rod and the clutch disc, which drives the clutch disc to slide through the sliding of the push-pull rod.

3. The high-voltage switchgear operating mechanism according to claim 2, characterized in that: The cam is fixedly connected to the push-pull rod and slides with the push-pull rod, and the reversing push-pull plate is provided with a pushing protrusion protruding along the sliding direction of the clutch disc and sliding with the push-pull rod, and the reversing push-pull plate is provided with a pushing protrusion protruding along the sliding direction of the clutch disc and sliding with the push-pull rod, and the pushing protrusion is provided with a driving inclined surface extending obliquely along the sliding direction of the reversing push-pull plate, and the driving inclined surface guides the driven plate to slide under the spring driving force of the pushing spring, and the driven plate is supported on the pushing protrusion to push the clutch disc to be kept in the disengaged position with the active disc, and the clutch disc can be rotated relative to the driven plate, and the driven plate pushes and cooperates with the clutch disc, and the driven plate is provided with a protrusion clearance through-hole for the pushing protrusion to enter.

4. The high-voltage switchgear operating mechanism according to claim 3, characterized in that: The driven plate is provided with an axial hole for the clutch disc to pass through, and the driven plate is supported on the clutch disc through the axial hole. A positioning guide finger is provided on the other end of the driven plate opposite to the end connected to the push-pull rod. A positioning plate is fixed on the mounting frame, and a guide groove is provided on the positioning plate extending along the sliding direction of the driven plate. The positioning guide finger of the driven plate is fitted in the guide groove.

5. The high-voltage switchgear operating mechanism according to claim 3, characterized in that: The pushing protrusion is guided and matched with the protrusion yielding through hole.

6. The high-voltage switchgear operating mechanism according to claim 3, 4 or 5, characterized in that: The reversing push plate is fork-shaped, and the reversing push plate includes a base plate fixedly connected to the push-pull rod, and the base plate is provided with an upper fork arm and a lower fork arm extending along the sliding direction of the reversing push plate, and a fork is provided between the upper fork arm and the lower fork arm, and the fork is used to avoid the clutch plate, and the upper fork arm and the lower fork arm are both provided with a push protrusion. The push protrusion includes a first push protrusion provided on the upper fork arm, and a second push protrusion and a third push protrusion provided on the lower fork arm, and the second push protrusion and the third push protrusion are distributed along the extension direction of the lower fork arm. The driven plate is provided with a protrusion yielding through hole that corresponds to the first push protrusion, the second push protrusion, and the third push protrusion in a one-to-one manner. The protrusion yielding through holes corresponding to the two push protrusions on the lower fork arm are located on both sides of a virtual center line perpendicular to the sliding direction of the reversing push plate and intersecting with the central axis of the clutch plate.

7. The high-voltage switchgear operating mechanism according to claim 6, characterized in that: The fork guide of the reversing push plate is matched with the clutch disc.

8. The high-voltage switchgear operating mechanism according to claim 3, 4 or 5, characterized in that: The gear frame is provided with a gear frame for positioning and installing the worm gear on the mounting frame, and the gear frame includes two gear mounting plates arranged opposite to each other and a fixed connecting piece connecting the two gear mounting plates. The two gear mounting plates are respectively arranged at both ends of the axial direction of the worm gear, and the gear mounting plates are provided with gear supporting holes. The worm gear is positioned and rotated to fit on the gear supporting holes. The gear mounting plates are provided with a push-pull rod avoidance groove extending along the sliding direction of the push-pull rod, and one end of the push-pull rod avoidance groove extending in the direction of extension is a cut-off end with a stop surface. A stop pin is fixed on the gear mounting plate with the push-pull rod avoidance groove. The lateral part of the push-pull rod is located in the push-pull rod avoidance groove, and the end of the push-pull rod connected to the driven plate is stopped by the stop surface to constitute a limit on the disengagement position of the push-pull rod driven clutch. The reversing push plate is provided with a step notch, and the step notch on the reversing push plate is stopped by the stop pin to constitute a limit on the engagement position of the push-pull rod driven clutch.

9. The high-voltage switchgear operating mechanism according to claim 2, 3, 4 or 5, characterized in that: When the push-pull rod corresponds to the position where the driving clutch disc is disengaged from the active disc, the locking bayonet corresponds to the movement path of the locking tongue of the movable baffle, and the locking tongue is inserted into the locking bayonet when the movable baffle slides to the manual opening position, and the locking tongue exits the locking bayonet when the movable baffle slides to the closed position. When the push-pull rod corresponds to the position where the driving clutch disc is dynamically coupled with the active disc, the movable baffle corresponds to the closed position, and the push-pull rod stops the movable baffle from sliding to open the manual operating end.

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