An operating mechanism

Abstract

The present application relates to the field of switchgear, and specifically discloses an operating mechanism comprising a main shaft capable of rotating and achieving isolation, closing, and grounding states, a switching module for driving the main shaft to rotate and achieving isolation, closing, and grounding states, a motor for outputting a force to drive the main shaft to rotate, a transmission module for transmitting the electrically output force to an operating shaft and driving the operating shaft to rotate, and a clutch module for transmitting the force output by the motor to the transmission module, wherein the clutch module is further configured to separate the force output by the transmission module from the output shaft of the motor. The present application has the effect of enabling the operating mechanism to achieve the function of electrically operating while retaining the function of manually operating.

Description

Technical Field

[0001] The present application relates to the field of switch devices, and in particular to an operating mechanism. Background Art

[0002] The operating mechanism is an electrical control device used to operate high-voltage circuit breakers, high-voltage load switches, etc. Its core function is to make the contacts of the circuit breaker contact and separate in a predetermined operating sequence and manner.

[0003] To make operation more labor-saving and simpler, various types of operating mechanisms are gradually transitioning from manual to electric operation, even if the operating mechanism's spindle can be driven by a motor or other device. Manual operation is still necessary in the event of motor failure or other emergencies, so even if electric operation is implemented, manual operation must be retained.

[0004] Directly driving the spindle with a motor inevitably results in the motor's output shaft rotating due to the force of manual operation when the spindle is manually operated, thus damaging the motor. In order to enable the operating mechanism to achieve the function of electric operation while retaining the function of manual operation, a new operating mechanism is urgently needed. Summary of the Invention

[0005] In order to enable the operating mechanism to achieve the function of electric operation while retaining the function of manual operation, the present application provides an operating mechanism.

[0006] The present application provides an operating mechanism that adopts the following technical solution:

[0007] An operating mechanism comprising

[0008] Main shaft: able to rotate and achieve isolation, closing and grounding states;

[0009] Opening and closing module: used to drive the main shaft to rotate and realize the main shaft isolation, closing and grounding status;

[0010] Manual module: used to drive the opening and closing modules, including an operating shaft for manual rotation, which is linked to the main shaft;

[0011] Motor: used to output the force to drive the main shaft to rotate;

[0012] Transmission module: used to transmit the electric output force to the operating shaft and drive the operating shaft to rotate;

[0013] Clutch module: used to transmit the force output by the motor to the transmission module, and also used to separate the force output by the transmission module from the output shaft of the motor;

[0014] The clutch module includes a small gear rotatably sleeved on the output shaft of the motor, a transmission member slidably sleeved on the output shaft of the motor along the axial direction of the output shaft of the motor, a fixed member sleeved and fixed on the output shaft of the motor, an elastic member provided on the transmission member and exerting a force on the transmission member to move toward the fixed member, and a large gear linked to the transmission module, wherein the small gear, the transmission member and the fixed member are arranged in sequence along the axial direction of the output shaft of the motor;

[0015] A transmission structure is provided between the transmission member and the pinion gear, the transmission structure comprising a transmission block and a transmission slot, the transmission slot being used for inserting the transmission block, the transmission member being movable until the transmission block is aligned with the transmission slot, and the transmission member being movable until the transmission block is offset from the transmission slot, and when the transmission block is inserted in the transmission slot, the transmission member and the pinion gear are capable of rotating together;

[0016] A linkage structure is provided between the transmission member and the fixing member, the linkage structure comprising a linkage groove and a linkage member, one end of the linkage member being slidably provided in the linkage groove;

[0017] The linkage member is provided on the transmission member, the linkage groove is provided on the fixing member, and the cross-sectional area of the linkage groove decreases along the arrangement direction from the linkage member to the fixing member; or

[0018] The linkage member is arranged on the fixing member, the linkage groove is opened on the linkage member, and the cross-sectional area of the linkage groove decreases along the arrangement direction from the fixing member to the linkage member.

[0019] By adopting the above technical solution, when the main shaft is rotated by manual operation, the operating shaft is directly rotated, and the manual module drives the opening and closing module to operate, and finally the operating shaft and the main shaft are linked to each other to drive the main shaft to rotate. When the main shaft is driven to rotate by electric means, the motor outputs force first, and the output shaft of the motor rotates to drive the fixed part to rotate, and the fixed part and the transmission part rotate relative to each other. The linkage part rotates and presses against the groove wall of the linkage groove. By applying force to the groove wall of the linkage groove, the distance between the fixed part and the transmission part is expanded, so that the transmission part moves in the direction close to the pinion until the transmission block collides with the pinion. At this time, the output shaft of the motor continues to rotate, and the transmission part and the fixed part rotate together under the action of the linkage structure until the transmission block is aligned with the transmission groove. The fixed part continues to rotate, and the transmission part continues to move in the direction close to the pinion through the linkage structure, so that the transmission block is inserted into the transmission groove. In this way, when the output shaft of the motor continues to rotate, the transmission part and the fixed part rotate together through the linkage structure, and the transmission part and the pinion gear rotate together through the transmission structure, that is, the fixed part, the transmission part and the pinion gear rotate together, the pinion gear drives the large gear to rotate, and finally the main shaft rotates.

[0020] After the main shaft has finished rotating, the motor's output shaft is slightly reversed, causing the transmission member to rotate relative to the fixed member. The linkage member moves along the groove wall of the linkage groove and further into the linkage groove. Under the action of the elastic member, the transmission member moves toward the fixed member, and the transmission block moves out of the transmission groove. In this way, even if the operating shaft is turned manually, it will not affect the motor.

[0021] Such arrangement ensures that the mechanism can be operated manually while being electrically operated, so that the operation has both ease of operation and emergency operation function.

[0022] Optionally, the linkage structure also includes a connecting groove, and one end of the linkage part is slidably arranged in the connecting groove; when the linkage groove is opened on the fixed part, the connecting groove is opened on the transmission part, and the cross-sectional area of the connecting groove decreases along the arrangement direction from the fixed part to the transmission part; when the connecting groove is opened on the transmission part, the connecting groove is opened on the fixed part, and the cross-sectional area of the connecting groove decreases along the arrangement direction from the transmission part to the fixed part.

[0023] By adopting the above technical solution, by providing a connecting groove relative to the linkage groove, the linkage member can be directly installed into the connecting groove and the linkage groove, regardless of the installation method of the linkage member. Furthermore, this arrangement allows for a linkage member with a longer axial dimension along the motor output shaft, thereby increasing the travel distance of the transmission member, thereby increasing the axial dimension of the transmission block along the motor output shaft, and improving the stability of the transmission member and the pinion gear rotating together when the transmission block is inserted into the transmission groove.

[0024] Optionally, the linkage member is a ball bearing, and the linkage member is rotatably arranged in a linkage groove.

[0025] By adopting the above technical solution, compared with the block structure, setting the linkage part as a ball can help reduce the friction between the linkage part and the linkage groove when it moves, and help the transmission part to rotate relative to the fixed part, that is, help the transmission part to move relative to the fixed part along the output shaft of the motor.

[0026] Optionally, the linkage groove and the connection groove are both conical grooves.

[0027] By adopting the above technical solution, compared with the arc-shaped groove, the conical groove is more conducive to the movement of the ball, and can drive the transmission member to move a longer distance along the output shaft of the motor at a smaller rotation angle.

[0028] Optionally, a telescopic groove is provided on the end surface of the transmission member facing the pinion and / or the end surface of the pinion facing the elastic member, and the end of the elastic member is inserted into the telescopic groove.

[0029] By adopting the above technical solution, the expansion and contraction groove plays a guiding role in the expansion and contraction of the elastic member, and at the same time plays a limiting role in the installation of the elastic member, which is helpful for the installation and expansion and contraction of the elastic member.

[0030] Optionally, the clutch module further includes a switch electrically connected to the motor, and a switch cam is provided on the main shaft, and the main shaft can be rotated until the switch cam contacts the switch, and the main shaft can also be rotated until the switch cam is separated from the switch;

[0031] When the main shaft is in a closed or grounded state, the switching cam contacts the switching switch; when the main shaft is in an isolated state, the switching cam is separated from the switching switch; or

[0032] When the main shaft is in an isolated state, the switching cam contacts the switching switch; when the main shaft is in a closed or grounded state, the switching cam is separated from the switching switch.

[0033] By adopting the above technical solution, the motor's rotation is controlled by the switch. When the switching cam and the switch go from separation to contact, or vice versa, a signal is output to the motor to stop the motor. After a certain period of time, the motor restarts. The motor's output shaft slightly reverses its direction of rotation relative to the direction before stopping, helping the transmission member reset until the transmission block is separated from the transmission slot. This combination of mechanical structure and circuit control greatly simplifies the circuit control compared to pure circuit control, eliminates the need for multiple sensors, and achieves high control accuracy.

[0034] Optionally, the clutch module also includes a guide assembly, which includes a guide rod and a guide spring. The guide spring is slidably mounted on the guide rod along the sliding direction of the transmission member. A guide ring groove extending around its own sliding direction is provided on the side wall of the transmission member. The guide spring is mounted on the transmission member, and the part of the guide spring mounted on the transmission member is located in the guide ring groove.

[0035] By adopting this technical solution, the guide spring is mounted on the transmission member, and the portion of the guide spring mounted on the transmission member is located within the guide ring groove. This allows the guide spring and the transmission member to move axially along the motor output shaft and remain relatively integrated. The transmission member can also rotate relative to the motor output shaft and the guide spring. The guide spring is slidably mounted on the guide rod to guide the sliding of the guide member, thereby improving the sliding stability of the guide member.

[0036] Optionally, the transmission module includes a rotatable transmission shaft, a transmission cam sleeved and fixed on the transmission shaft, a transmission plate rotatably set on the transmission shaft, and a transmission pin set on the transmission plate. The large gear is sleeved and fixed on the transmission shaft. A giveway groove is provided on the transmission cam. The transmission pin is located in the giveway groove. The groove wall of the giveway groove includes a forward rotation contact surface and a reverse rotation contact surface. The transmission pin is located between the forward rotation contact surface and the reverse rotation contact surface, and the forward rotation contact surface and the reverse rotation contact surface are both used to contact with the transmission pin. When the main shaft is in an isolated, open or grounded state, the transmission pin is separated from the forward rotation contact surface and the reverse rotation contact surface, and the transmission plate is linked to the operating shaft.

[0037] By adopting the above technical solution, when the transmission shaft rotates, the transmission cam rotates. When the transmission shaft rotates to move the positive rotation contact surface in the direction of the transmission pin, as the transmission cam continues to rotate, the positive rotation contact surface presses against the transmission pin and pushes the transmission pin to move, thereby rotating the transmission plate. The transmission plate is linked to the operating shaft to drive the operating shaft to rotate, and then the main shaft rotates to close, ground or isolate. When the main shaft uses a spring or other energy storage method to achieve closing, grounding or isolation, such a setting can reserve a margin for the transmission pin, and try to avoid collision between the transmission pin and the transmission cam when the main shaft is quickly closed, grounded or isolated through the energy storage structure, thereby effectively protecting the transmission module and the manual module.

[0038] In summary, this application includes at least one of the following beneficial technical effects:

[0039] 1. The clutch module allows the motor to transmit its output force to the transmission module when it is outputting force. When the motor is no longer outputting force, the motor's output shaft and the transmission module can be separated to minimize damage to the motor caused by manual operation of the output shaft.

[0040] 2. By switching the installation settings of the cam and the switch, combined with the mechanical structure settings and circuit settings, precise control of the motor is achieved, simplifying the complexity of the circuit and omitting the problems;

[0041] 3. The clearance groove on the transmission cam and the coordination between the transmission pin and the transmission plate can effectively prevent collisions between the transmission cam and the transmission pin caused by the rapid rotation of the main shaft when switching to the closed, grounded or isolated state, effectively ensuring the life of the transmission module. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a structural diagram of an embodiment of the present application.

[0043] Figure 2 This is a structural diagram of an embodiment of the present application in which the upper plate of the mechanism and the switching switch are removed.

[0044] Figure 3It is a structural diagram highlighting the manual module in the embodiment of the present application.

[0045] Figure 4 It is a structural schematic diagram highlighting the crank arm plate and the connecting plate in the embodiment of the present application.

[0046] Figure 5 yes Figure 2 Enlarged schematic diagram of point A in the middle.

[0047] Figure 6 It is an exploded schematic diagram highlighting the elastic member, transmission structure and linkage structure in the embodiment of the present application.

[0048] Figure 7 yes Figure 3 Enlarged schematic diagram of point B in the middle.

[0049] Description of reference numerals:

[0050] 1. Mechanism base plate; 11. Guide groove; 2. Mechanism upper plate; 3. Main shaft; 31. Switching cam; 4. Opening and closing module; 41. Telescopic rod; 411. Spring seat; 42. Energy storage spring; 43. Crank arm plate; 44. Connecting plate; 441. Waist-shaped hole; 45. Reset plate; 46. Reset pin; 5. Manual module; 51. Operating shaft; 52. Operating crank arm; 53. Reset crank arm; 54. Operating pin; 6. Motor; 7. Clutch module; 71. Pinion; 72. Transmission part; 721. Telescopic slot; 722. Guide ring slot; 7 3. Fixing part; 74. Elastic part; 75. Guide assembly; 751. Guide rod; 752. Guide spring; 76. Large gear; 77. Switch; 78. Transmission structure; 781. Transmission block; 782. Transmission groove; 79. Linkage structure; 791. Linkage groove; 792. Connecting groove; 793. Linkage part; 8. Transmission module; 81. Transmission shaft; 82. Transmission cam; 821. Gap groove; 822. Forward rotation contact surface; 823. Reverse rotation contact surface; 83. Transmission plate; 84. Transmission pin; 85. Interlocking plate. DETAILED DESCRIPTION

[0051] The following is combined with Figure 1-7 This application is described in further detail.

[0052] The embodiment of the present application discloses an operating mechanism. Figure 1 The operating mechanism includes a mechanism base plate 1, a mechanism upper plate 2 fixed on the mechanism base plate 1, a main shaft 3 rotatably arranged on the mechanism base plate 1 and the mechanism upper plate 2, a switching module 4 for driving the main shaft 3 to rotate, and a manual module 5 for driving the switching module 4 to operate.

[0053] Reference Figure 2There are two groups of manual modules 5, and the two groups of manual modules 5 are respectively located on both sides of the main shaft 3. One group of manual modules 5 is used to drive the main shaft 3 to switch to the closed state, and the other group of manual modules 5 is used to drive the main shaft 3 to switch to the grounded state. Both groups of manual modules 5 can also drive the main shaft 3 to switch to the isolated state.

[0054] Reference Figure 1 、 Figure 3 The manual module 5 includes an operating shaft 51 rotatably arranged on the mechanism bottom plate 1 and the mechanism upper plate 2, an operating crank arm 52 for transmitting the rotational force of the operating shaft 51, a reset crank arm 53 for driving the main shaft 3 to switch to an isolated state, and an operating pin 54 passing through the operating crank arm 52 and the reset crank arm 53. The isolation crank arm and the reset crank arm 53 are both sleeved and fixed on the operating shaft 51, and the operating pin 54 is fixedly connected to the operating crank arm 52 and the reset crank arm 53.

[0055] Reference Figure 3 The opening and closing modules 4 include a telescopic rod 41 that can be extended and retracted, and an energy storage spring 42 that is sleeved on the telescopic rod 41. The operating pins 54 of one set of manual modules 5 extend through one end of the telescopic rod 41, while the operating pins 54 of the other set of manual modules 5 extend through the other end of the telescopic rod 41. The telescopic rods 41 are rotatable relative to the operating pins 54. Spring seats 411 are fixedly sleeved at both ends of the telescopic rod 41. The energy storage spring 42 is located between the two spring seats 411 and presses against them.

[0056] Reference Figure 4 , two symmetrically arranged guide grooves 11 are provided on the mechanism base plate 1 and pass through the mechanism base plate 1. The ends of the two operating pins 54 are respectively inserted into the corresponding guide grooves 11, and the two operating pins 54 are respectively slidably set in the corresponding guide grooves 11. The opening and closing module 4 also includes a crank arm plate 43 and connecting plates 44 corresponding to the number of operating pins 54. The crank arm plate 43 is fixed on the main shaft 3. Rotating the crank arm plate 43 can drive the main shaft 3 to rotate. One end of the connecting plate 44 is hinged to the crank arm plate 43, and the axis of the hinge shaft between the connecting plate 44 and the crank arm plate 43 is staggered with the axis of the main shaft 3. A waist-shaped hole 441 is passed through the connecting plate 44. One end of the operating pin 54 passes through the mechanism base plate 1 through the guide groove 11 and is inserted into the adjacent connecting plate 44. The end of the operating pin 54 is slidably set in the waist-shaped hole 441.

[0057] Reference Figure 3 、 Figure 4By rotating one of the operating shafts 51, the operating crank arm 52, the reset crank arm 53, and the operating pin 54 move together, compressing the telescopic rod 41 and the energy storage spring 42. The energy storage spring 42 stores energy, and the operating pin 54 drives the connecting plate 44 to rotate. After the energy storage spring 42 passes the center, that is, after it is compressed to the maximum compression that this mechanism can achieve, the energy storage spring 42 recovers and, through the spring seat 411 and the telescopic rod 41, causes the operating pin 54 to move rapidly within the guide groove 11. The operating rod drives the connecting plate 44 to rotate and move rapidly, thereby rapidly rotating the crank arm plate 43, and thus rotating the main shaft 3. In this way, the main shaft 3 can be switched to the closed state or the grounded state by using different operating shafts 51.

[0058] Reference Figure 3 The opening and closing module 4 also includes a reset plate 45 fixed on the main shaft 3 and a reset pin 46 fixed thereon. The reset pin 46 is always located on the rotation path of the reset crank arm 53. The reset crank arm 53, the reset pin 46 and the reset plate 45 are used to drive the main shaft 3 to rotate to the isolated state.

[0059] Reference Figure 3 、 Figure 4 When the main shaft 3 switches from the closed state back to the isolated state, the operating shaft 51 is rotated in the opposite direction compared to the direction required for closing the switch. Under the action of the operating pin 54, the connecting plate 44, and the lever plate 43, the main shaft 3 begins to reset. During the reset process, the reset lever 53 rotates until it contacts the reset pin 46, pushing the reset pin 46 to continue rotating. The reset pin 46 drives the main shaft 3 through the reset plate 45 until it is fully reset, and the main shaft 3 is switched to the isolated state.

[0060] Reference Figure 3 The mechanism base plate 1 is also provided with a motor 6, a clutch module 7, and a transmission module 8 corresponding to the manual module 5. That is, two sets of motor 6, clutch module 7, and transmission module 8 are provided. The housing of motor 6 is fixed to the mechanism base plate 1, and motor 6 is used to output the force that drives the main shaft 3 to rotate.

[0061] Reference Figure 5 、 Figure 6The clutch module 7 is arranged on the corresponding motor 6. The clutch module 7 is used to transmit the force output by the motor 6 to the transmission module 8, and is also used to separate the force output by the transmission module 8 from the output shaft of the motor 6. The clutch module 7 includes a pinion 71, a transmission member 72 and a fixed member 73. The pinion 71, the transmission member 72 and the fixed member 73 are arranged in sequence along the axial direction of the output shaft of the motor 6. The pinion 71 is rotatably sleeved on the output shaft of the motor 6, and the transmission member 72 is slidably sleeved on the output shaft of the motor 6 along the axial direction of the output shaft of the motor 6. The transmission member 72 can also rotate relative to the output shaft of the motor 6, and the fixed member 73 is sleeved on the output shaft of the motor 6. A flat key is installed on the output shaft of the motor 6 to cooperate with the fixed member 73 to limit the rotation of the fixed member 73 relative to the output shaft of the motor 6. A nut and a washer are installed on the side of the fixed member 73 away from the transmission member 72 to press against the fixed member 73, thereby limiting the movement of the fixed member 73 in the direction away from the transmission member 72.

[0062] Reference Figure 5 、 Figure 6 The clutch module 7 further includes an elastic member 74. In the embodiment of the present application, the elastic member 74 is a spring. The elastic member 74 is sleeved on the output shaft of the motor 6 and expands and contracts along the sliding direction of the transmission member 72. A telescopic groove 721 is formed on the end surface of the transmission member 72 facing the pinion 71 and on the end surface of the pinion 71 facing the elastic member 74. One end of the elastic member 74 is located in the telescopic groove 721 on the transmission member 72 and abuts against the bottom of the telescopic groove 721 on the transmission member 72. The other end of the elastic member 74 is located in the telescopic groove 721 on the pinion 71 and abuts against the bottom of the telescopic groove 721 on the pinion 71. In other embodiments, the elastic member 74 may also be in the form of a spring, rubber, or the like, any form that can exert a force on the transmission member 72 to move toward the fixed member 73.

[0063] Reference Figure 6 A transmission structure 78 is provided between the transmission member 72 and the pinion 71. The transmission structure 78 includes a transmission block 781 and a transmission groove 782. The transmission groove 782 is used for inserting the transmission block 781. The transmission groove 782 is provided on the end face of the pinion 71 facing the transmission member 72. There are four transmission grooves 782, and each transmission groove 782 is evenly distributed circumferentially around the axis of the output shaft of the motor 6. The transmission block 781 is integrally formed on the end face of the transmission member 72 facing the pinion 71. There are two transmission members 72, and the two transmission members 72 are evenly distributed circumferentially around the output shaft of the motor 6. The transmission member 72 can be rotated until the transmission block 781 is aligned with any transmission groove 782. When one transmission block 781 is aligned with any transmission groove 782, the other transmission block 781 is aligned with the other transmission groove 782. The transmission member 72 can also be rotated until the two transmission blocks 781 are staggered with each transmission groove 782. When the transmission block 781 is inserted into the transmission slot 782 , the transmission member 72 and the pinion 71 can rotate together.

[0064] Reference Figure 6 Four groups of linkage structures 79 are arranged between the transmission member 72 and the fixing member 73. Each group of linkage components is circumferentially localized around the axis of the output shaft of the motor 6. The linkage structure 79 includes a linkage groove 791, a connecting groove 792 and a linkage member 793.

[0065] Reference Figure 6 In the embodiment of the present application, a linkage groove 791 is provided on the end surface of the transmission member 72 facing the fixed member 73, and a connecting groove 792 is provided on the end surface of the fixed member 73 facing the transmission member 72. Both the linkage groove 791 and the connecting groove 792 are conical grooves. The linkage member 793 is a ball bearing that rolls within the linkage groove 791 and the connecting groove 792. When the transmission member 72 is inserted into the transmission groove 782, the gap between the transmission member 72 and the fixed member 73 is smaller than the diameter of the transmission member 72.

[0066] In other embodiments, only the linkage groove 791 may be provided, and the linkage groove 791 may also be provided on the fixing member 73. When only the linkage groove 791 is provided, and the linkage groove 791 is provided only on the fixing member 73, the linkage member 793 may be provided on the transmission member 72, such as a block-shaped linkage member 793 with one end fixed to the transmission member 72. The same applies when only the linkage groove 791 is provided, and the linkage groove 791 is provided only on the transmission member 72. The linkage groove 791 and the connecting groove 792 may also be arc grooves, etc., so that when the transmission member 72 rotates, the linkage member 793 can move along the groove wall of the linkage groove 791 to expand the distance between the transmission member 72 and the fixing member 73.

[0067] Reference Figure 5 The clutch module 7 also includes a guide assembly 75 for guiding the sliding movement of the transmission member 72. The guide assembly 75 includes a guide rod 751 and a guide spring 752. The guide rod 751 is fixed to the housing of the adjacent motor 6. The length of the guide rod 751 is consistent with the axial direction of the output shaft of the motor 6, that is, the guide rod 751 extends along the axial direction of the output shaft of the motor 6. One end of the guide spring 752 is "U"-shaped and is slidably mounted on the guide rod 751 along the sliding direction of the transmission member 72. A guide ring groove 722 is formed on the side wall of the transmission member 72. The guide ring groove 722 extends around the axis of the output shaft of the motor 6. The guide spring 752 is mounted on the transmission member 72, and the portion of the guide spring 752 mounted on the transmission member 72 is located within the guide ring groove 722, so that the transmission member 72 can still rotate freely.

[0068] Reference Figure 6When the output shaft of motor 6 rotates, fixed member 73 rotates with it. Fixed member 73 drives the ball bearings to roll and move through connecting groove 792. The ball bearings press against linkage groove 791, causing transmission member 72 to move and rotate. When transmission member 72 rotates until transmission block 781 is aligned with transmission groove 782, the ball bearings cause transmission member 72 to continue moving until transmission block 781 is inserted into transmission groove 782. At this time, the output shaft of motor 6 continues to rotate, driving pinion 71 to rotate together.

[0069] Reference Figure 3 、 Figure 7 The transmission module 8 includes a transmission shaft 81 rotatably arranged on the mechanism bottom plate 1 and the mechanism upper plate 2, and a transmission cam 82 sleeved and fixed on the transmission shaft 81. The clutch module 7 also includes a large gear 76, which is sleeved and fixed on the transmission shaft 81, and the large gear 76 is engaged with the small gear 71, that is, the small gear 71, the large gear 76, the transmission shaft 81 and the transmission cam 82 can rotate together.

[0070] Reference Figure 7 The transmission module 8 further includes a transmission plate 83, a transmission pin 84, and a linkage plate 85. There are two transmission plates 83, and the transmission shaft 81 passes through the two transmission plates 83 and is rotatably mounted on the transmission shaft 81. The transmission pin 84 passes through the two transmission plates 83 and is fixedly connected to the two transmission plates 83. One end of the linkage plate 85 is rotatably mounted on the two transmission plates 83, and the other end of the linkage plate 85 is rotatably mounted on the adjacent operating lever 52.

[0071] Reference Figure 3 、 Figure 7 The transmission cam 82 is provided with a clearance groove 821 extending through the transmission cam 82, and one end of the transmission pin 84 is located in the clearance groove 821. The groove wall of the clearance groove 821 includes a forward rotation contact surface 822 and a reverse rotation contact surface 823. The transmission pin 84 is located between the forward rotation contact surface 822 and the reverse rotation contact surface 823, and both the forward rotation contact surface 822 and the reverse rotation contact surface 823 are configured to contact the transmission pin 84. When the main shaft 3 is in the isolated, open, or grounded state, the transmission pin 84 is separated from both the forward rotation contact surface 822 and the reverse rotation contact surface 823.

[0072] Reference Figure 3 、 Figure 7, when the main shaft 3 is driven to rotate by one of the motors 6 so that the main shaft 3 switches to the closed state, the main shaft 3 large gear 76 drives the transmission cam 82 to rotate through the transmission shaft 81 until the forward rotation contact surface 822 contacts the transmission pin 84. At this time, the transmission cam 82 continues to rotate, the forward rotation contact surface 822 presses on the transmission pin 84 and drives the rotating plate to rotate through the rotation effect, and the transmission plate 83, the interlocking plate 85, and the operating crank arm 52 are linked to the rod, thereby rotating the operating shaft 51. The operating crank arm 52, the operating pin 54 and the opening and closing module 4 are linked to rotate the main shaft 3, and after the energy storage spring 42 passes through the middle, the main shaft 3 switches to the closed state. At this time, the operating shaft 51, the operating crank arm 52, the interlocking plate 85 and the transmission plate 83 all rotate rapidly, so that the transmission pin 84 rotates rapidly and separates from the forward rotation contact surface 822, and there is a distance between it and the reverse rotation contact surface 823.

[0073] Reference Figure 1 The clutch module 7 also includes a switch 77 fixed to the upper plate 2 of the mechanism. The switch 77 is electrically connected to the motor 6. The two sets of switches 77 of the clutch module 7 are located on either side of the main shaft 3. A switch cam 31 is mounted on the main shaft 3. The switch 77 is a micro switch. The main shaft 3 can be rotated until the switch cam 31 presses against only one of the switches 77. The main shaft 3 can also be rotated until the switch cam 31 is separated from all the switches 77.

[0074] Reference Figure 1 When the main shaft 3 is in the isolated state, the switching cam 31 is separated from both switching switches 77. When the main shaft 3 is in the closed state, the switching cam 31 presses against one of the switching switches 77; when the main shaft 3 is in the grounded state, the switching cam 31 presses against the other switching switch 77.

[0075] Reference Figure 1 、 Figure 6 When motor 6 is driving spindle 3, the output shaft of motor 6 rotates in the forward direction. When motor 6 is driving spindle 3, the output shaft rotates in the reverse direction. When motor 6 is driving spindle 3, the output shaft rotates in the reverse direction. When motor 6 is driving spindle 3, the switching cam 31 presses against one of the switches 77, de-energizing motor 6. After a certain period of time, power is re-energized after the output shaft of motor 6 stops rotating due to inertia. At this point, the output shaft of motor 6 rotates slightly in the reverse direction. Under the action of fixed member 73, linkage structure 79, and elastic member 74, transmission member 72 moves toward fixed member 73, separating transmission block 781 from transmission slot 782. Similarly, when motor 6 is driving spindle 3, the switching cam 31 rotates to separate from the previously abutting switch 77. The corresponding motor 6 is also de-energized. After a certain period of time, power is re-energized. At this point, the output shaft of motor 6 rotates slightly in the forward direction. The transmission member 72 moves toward fixed member 73, separating transmission block 781 from transmission slot 782.

[0076] The implementation principle of an operating mechanism in an embodiment of the present application is as follows: when the main shaft 3 is switched from isolation to closing or grounding, the corresponding motor 6 is energized and rotated forward. Under the action of the linkage structure 79, the transmission member 72 rotates and moves to the transmission block 781 to insert into the transmission slot 782, thereby causing the small gear 71 to rotate together. The large gear 76, the transmission shaft 81, and the transmission cam 82 are linked to make the forward rotation contact surface 822 contact with the transmission pin 84 and push the transmission pin 84 to rotate, and the transmission pin 84 drives the transmission plate 83 to move. The transmission plate 83, the interlocking plate 85, the manual module 5, and the opening and closing module 4 are linked. After the operating pin 54 moves to the center of the energy storage spring 42, the energy storage spring 42 releases energy and drives the main shaft 3 through the opening and closing module 4 to quickly close or ground. At this time, the transmission pin 84 rotates rapidly to separate from the forward contact surface, and the switching cam 31 rotates to press against the switching switch 77 corresponding to the motor 6. The motor 6 stops for a certain period of time. After the output shaft of the motor 6 no longer rotates due to inertia, the motor 6 reverses slightly. Under the action of the linkage structure 79 and the elastic member 74, the transmission member 72 is reset to the transmission block 781 and moves out of the transmission slot 782.

[0077] Similarly, when the main shaft 3 is switched from closed or grounded to isolated, when the switching cam 31 rotates to separate itself from the switching switch 77 corresponding to the motor 6, the motor 6 will also stop for a certain period of time. After the output shaft of the motor 6 no longer rotates due to inertia, the motor 6 rotates slightly forward, and the transmission member 72 resets to the transmission block 781 and moves out of the transmission slot 782.

[0078] Such an arrangement enables electric control of the operating mechanism of the present application while retaining manual control.

[0079] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An operating mechanism, characterized in that: include: Main shaft (3): capable of rotating and achieving isolation, closing and grounding states; The opening and closing module (4) is used to drive the main shaft (3) to rotate and to achieve the isolation, closing and grounding states of the main shaft (3); A manual module (5) is used to drive the opening and closing module (4) to operate, and includes an operating shaft (51) for manual rotation, wherein the operating shaft (51) is linked to the main shaft (3); Motor (6): used to output the force to drive the main shaft (3) to rotate; Transmission module (8): used for transmitting the electric output force to the operating shaft (51) and driving the operating shaft (51) to rotate; A clutch module (7) is used to transmit the force output by the motor (6) to the transmission module (8), and is also used to separate the force output by the transmission module (8) from the output shaft of the motor (6); The clutch module (7) comprises a small gear (71) rotatably sleeved on the output shaft of the motor (6), a transmission member (72) slidably sleeved on the output shaft of the motor (6) along the axial direction of the output shaft of the motor (6), a fixing member (73) sleeved and fixed on the output shaft of the motor (6), an elastic member (74) provided on the transmission member (72) and applying a force to the transmission member (72) to move toward the fixing member (73), and a large gear (76) linked to the transmission module (8), wherein the small gear (71), the transmission member (72) and the fixing member (73) are sequentially arranged along the axial direction of the output shaft of the motor (6); A transmission structure (78) is provided between the transmission member (72) and the pinion (71), the transmission structure (78) comprising a transmission block (781) and a transmission slot (782), the transmission slot (782) being used for inserting the transmission block (781), the transmission member (72) being able to move until the transmission block (781) is aligned with the transmission slot (782), and the transmission member (72) being able to move until the transmission block (781) is staggered with the transmission slot (782), and when the transmission block (781) is inserted in the transmission slot (782), the transmission member (72) and the pinion (71) are able to rotate together; A linkage structure (79) is provided between the transmission member (72) and the fixing member (73), wherein the linkage structure (79) comprises a linkage groove (791) and a linkage member (793), and one end of the linkage member (793) is slidably provided in the linkage groove (791); The linkage member (793) is provided on the transmission member (72), the linkage groove (791) is provided on the fixing member (73), and the cross-sectional area of the linkage groove (791) decreases along the arrangement direction from the linkage member (793) to the fixing member (73); or The linkage member (793) is arranged on the fixing member (73), the linkage groove (791) is opened on the linkage member (793), and the cross-sectional area of the linkage groove (791) decreases along the arrangement direction from the fixing member (73) to the linkage member (793); The manual module (5) includes a reset crank arm (53) for driving the main shaft (3) to switch to an isolated state. The opening and closing module (4) also includes a reset plate (45) sleeved and fixed on the main shaft (3) and a reset pin (46) fixed thereon. The reset pin (46) is always located on the rotation path of the reset crank arm (53). The reset crank arm (53), the reset pin (46) and the reset plate (45) are used to drive the main shaft (3) to rotate to the isolated state.

2. An operating mechanism according to claim 1, characterized in that: The linkage structure (79) further comprises a connecting groove (792), one end of the linkage member (793) being slidably arranged in the connecting groove (792); when the linkage groove (791) is provided on the fixing member (73), the connecting groove (792) is provided on the transmission member (72), and the cross-sectional area of the connecting groove (792) decreases along the arrangement direction from the fixing member (73) to the transmission member (72); when the connecting groove (792) is provided on the transmission member (72), the connecting groove (792) is provided on the fixing member (73), and the cross-sectional area of the connecting groove (792) decreases along the arrangement direction from the transmission member (72) to the fixing member (73).

3. The operating mechanism according to claim 1, characterized in that: The linkage member (793) is a ball bearing, and the linkage member (793) is rotatably disposed in the linkage groove (791).

4. An operating mechanism according to claim 3, characterized in that: The linkage groove (791) and the connection groove (792) are both conical grooves.

5. The operating mechanism according to claim 1, characterized in that: A telescopic groove (721) is provided on the end surface of the transmission member (72) facing the pinion (71) and / or on the end surface of the pinion (71) facing the elastic member (74), and the end of the elastic member (74) is inserted into the telescopic groove (721).

6. The operating mechanism according to claim 1, characterized in that: The clutch module (7) further includes a switching switch (77) electrically connected to the motor (6), and a switching cam (31) is provided on the main shaft (3). The main shaft (3) can be rotated until the switching cam (31) contacts the switching switch (77), and the main shaft (3) can also be rotated until the switching cam (31) is separated from the switching switch (77). When the main shaft (3) is in a closed or grounded state, the switching cam (31) contacts the switching switch (77); when the main shaft (3) is in an isolated state, the switching cam (31) is separated from the switching switch (77); or When the main shaft (3) is in an isolated state, the switching cam (31) contacts the switching switch (77); when the main shaft (3) is in a closed or grounded state, the switching cam (31) is separated from the switching switch (77).

7. The operating mechanism according to claim 1, characterized in that: The clutch module (7) further comprises a guide assembly (75), the guide assembly (75) comprising a guide rod (751) and a guide spring (752), the guide spring (752) being slidably sleeved on the guide rod (751) along the sliding direction of the transmission member (72), a guide ring groove (722) extending around the sliding direction of the transmission member (72) being provided on the side wall of the transmission member (72), the guide spring (752) being sleeved on the transmission member (72), and the portion of the guide spring (752) sleeved on the transmission member (72) being located within the guide ring groove (722).

8. The operating mechanism according to claim 1, characterized in that: The transmission module (8) comprises a rotatable transmission shaft (81), a transmission cam (82) sleeved and fixed on the transmission shaft (81), a transmission plate (83) rotatably arranged on the transmission shaft (81), and a transmission pin (84) arranged on the transmission plate (83); the large gear (76) is sleeved and fixed on the transmission shaft (81); a clearance groove (821) is provided on the transmission cam (82); the transmission pin (84) is located in the clearance groove (821); and the groove wall of the clearance groove (821) comprises The transmission pin (84) is located between the forward rotation contact surface (822) and the reverse rotation contact surface (823), and the forward rotation contact surface (822) and the reverse rotation contact surface (823) are both used to contact the transmission pin (84). When the main shaft (3) is in an isolated, open or grounded state, the transmission pin (84) is separated from the forward rotation contact surface (822) and the reverse rotation contact surface (823), and the transmission plate (83) is linked to the operating shaft (51).

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