Isolating switch operating mechanism

Abstract

The invention relates to an isolating switch operating mechanism which comprises a main shaft, the main shaft is rotationally assembled with a turbine, a driving piece is arranged on the lower end face of the turbine, a push disc is assembled on the main shaft in a rotation stopping mode, the driving piece is used for pushing the push disc to rotate, and a driving gear is arranged on the main shaft and is in transmission fit with an output shaft. The locking unit comprises a first locking arm, a second locking arm and a locking disc, and the locking disc and the main shaft are assembled in a rotation stopping mode; the unlocking unit comprises an unlocking part arranged on the turbine, and the unlocking part synchronously rotates along with the turbine and is used for ejecting the corresponding lock arm at a specific position; the electrical interlocking unit comprises a push plate, a sliding plate, a microswitch and an auxiliary switch, and the sliding plate linearly acts to drive the crank arm to rotate; the microswitch is located on the rotation track of the trigger part and can be triggered by the trigger part. The isolating switch operating mechanism is ingenious and compact in structural design, locking and interlocking control can be achieved, and the accuracy of opening and closing actions of an isolating switch can be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of high-voltage switch equipment, and in particular to an isolating switch operating mechanism. Background Art

[0002] The isolating switch operating mechanism is an electrical control device used to operate high-voltage circuit breakers, high-voltage load switches and high-voltage isolating switches. It is mainly used to close and open switch equipment. It provides reliable protection when it is necessary to disconnect or connect the high-voltage circuit, and can quickly switch the power supply circuit.

[0003] For example, the utility model patent with authorization announcement number CN201181670Y discloses a precise positioning three-position switch operating mechanism, which mainly includes a motor, a gear transmission pair, and a worm gear pair. A balance wheel is provided on one side of the worm gear pair, and the balance wheel is used to cooperate with the pin on the worm gear pair. A power output shaft is provided on the balance wheel. When the mechanism state is switched, the pin on the worm gear pair rotates with the turbine and pushes the balance wheel to rotate. The balance wheel drives the power output shaft to a predetermined position, and the locking slider on the worm gear pair locks the balance wheel. The balance wheel is installed on the power output shaft, and the two parallel shafts with the rotating shaft where the worm wheel is located are not coaxially arranged. The structure is not compact enough, and the rotation angle range of the power output shaft is set and cannot be adjusted. A power output shaft is provided on the balance wheel, and the power output shaft is connected to an auxiliary switch connecting rod, and the auxiliary switch connecting rod is connected to an auxiliary switch for indicating different switch states. The power output shaft has three position states, and the structure is relatively complex. It is no longer applicable to some switch devices that only need to be controlled in two positions, open and closed. Summary of the invention

[0004] The object of the present invention is to provide an isolating switch operating mechanism which, through structural optimization, achieves a more compact structure, higher operating stability, and accurate control of the opening and closing of a switch device.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] An isolating switch operating mechanism includes a driving unit, the driving unit includes a motor, a worm gear, and a worm, and the motor and the worm gear are matched in transmission;

[0007] The transmission unit comprises a main shaft, the main shaft and the turbine are rotatably assembled, a driving member is provided on the lower end surface of the turbine, a push plate is fixedly assembled on the main shaft, the driving member is used to push the push plate to rotate, and a driving gear is provided on the main shaft;

[0008] An output unit, comprising an output shaft and an output gear located on the output shaft, the output gear being in transmission cooperation with the driving gear;

[0009] The locking unit comprises a first locking arm, a second locking arm and a locking plate, the locking plate is assembled with the main shaft to stop rotation, one end of the first locking arm and the second locking arm are both hinged, and the other ends of the first locking arm and the second locking arm are connected by an elastic member; a first locking portion is provided on the inner side of the first locking arm, and when the first locking portion abuts against the first stop surface, the locking plate is in a locked state;

[0010] The unlocking unit comprises an unlocking part arranged on the turbine, the unlocking part rotates synchronously with the turbine, and when the lock plate is in the locked state, the unlocking part is in the state of pushing the second lock arm open; when the lock plate is in the unlocked state, the unlocking part is in the state of pushing the first lock arm open;

[0011] The electrical interlocking unit includes a push plate, a slide plate, a micro switch and an auxiliary switch. One end of the push plate is connected to the upper part of the main shaft, and the other end is provided with a pushing part and a triggering part; one side of the slide plate is provided with a first push groove and a second push groove, and the first push groove and the second push groove are both open to allow the pushing part to selectively enter and cooperate with them in transmission; the other side of the slide plate is provided with a hinged long hole, which is hinged to one end of a crank arm in the auxiliary switch, and the slide plate moves linearly to drive the crank arm to rotate; the micro switch is located on the rotation trajectory of the triggering part and can be triggered by the triggering part.

[0012] Furthermore, the driving member is eccentrically arranged, and a driving groove is provided on one side of the outer circumference of the push plate, and the driving groove and the driving member are in bidirectional transmission cooperation; a stop cam is provided on the other side of the outer circumference of the push plate, which is used to cooperate with the limit structure after rotating a certain angle.

[0013] Furthermore, the limiting structure includes a fixed seat and a limiting arm, one end of the limiting arm is rotatably assembled on the main shaft, and the other end is provided with a limiting portion for cooperating with the stop cam, and the fixed seat is used to limit the rotation angle of the other end of the limiting arm; the fixed seat is provided with an adjusting bolt, and one end of the adjusting bolt is used to limit the other end of the limiting arm.

[0014] Furthermore, the elastic member adopts a tension spring, and the other ends of the first locking arm and the second locking arm are arranged at intervals. The tension spring is located at the interval between the first locking arm and the second locking arm, and the two ends of the tension spring are respectively hung with the other ends of the first locking arm and the second locking arm; the middle sections of the first locking arm and the second locking arm are convexly arranged, and curved grooves are formed on the corresponding inner sides, and the curved grooves of the first locking arm and the second locking arm are located on the periphery of the locking disk.

[0015] Furthermore, a first locking portion and a second locking portion are respectively provided at one end of the curved grooves corresponding to the first locking arm and the second locking arm, and the locking disk is formed by cutting off part of the structure of a circular disk, and the locking disk has a second stop surface symmetrically arranged with the first stop surface, and the first stop surface and the second stop surface are connected by a transition surface; after the locking disk rotates counterclockwise by a certain angle, the first locking portion abuts against the second stop surface so that the locking disk is in another locking state.

[0016] Furthermore, an auxiliary arm is provided on the lower side of a section of the first locking arm and the second locking arm close to the hinge, and the unlocking portion contacts the inner side surface of the auxiliary arm when rotating.

[0017] Furthermore, the slide plate is provided with a plurality of long positioning grooves, the length direction of which is consistent with the movement direction of the slide plate; the isolating switch operating mechanism comprises a frame, the slide plate is arranged on the upper side of the top plate of the frame, the top plate is provided with positioning bolts, and the positioning bolts pass through the long positioning grooves.

[0018] Furthermore, there are two micro switches which are spaced apart and arranged on the top plate.

[0019] Furthermore, a buffer portion is provided on the slide plate between the first push groove and the second push groove, and the buffer portion has an arc groove facing the main shaft side; an auxiliary push plate is mounted on the main shaft to prevent rotation, and the auxiliary push plate is a circular plate with a notch on the outer periphery of the auxiliary push plate. In one section of the rotation of the auxiliary push plate, one end of the buffer portion is located in the notch.

[0020] Furthermore, when the pushing part rotates counterclockwise with the main shaft, it rotates out from the first pushing groove and finally enters the second pushing groove; when the pushing part rotates clockwise with the main shaft, it rotates out from the second pushing groove and finally enters the first pushing groove; when the pushing part cooperates with the first pushing groove or the second pushing groove, it can drive the slide plate to move in a straight line.

[0021] Beneficial effects of the present invention:

[0022] (1) During operation, the power output by the motor is sequentially transmitted through the gear transmission and the turbine worm gear transmission. When the turbine rotates, the push plate is driven to rotate through the driving member set on its lower side. The main shaft rotates synchronously with the push plate. After the main shaft rotates to a set angle, it will be limited. During the rotation of the main shaft, the main shaft drives the output shaft to rotate according to the set angle through the gear transmission and outputs the set torque. The push plate and the turbine are both coaxially arranged with the main shaft, while the main shaft and the turbine are assembled in an asynchronous rotation relationship. The turbine drives the main shaft to rotate through the push plate. This new structural layout is more compact.

[0023] (2) The limit structure limits the rotation angle range of the push plate, and an adjusting bolt with an adjustable limit point is designed in the limit structure, so that the rotation angle range of the push plate is adjustable, the adaptability is better, and the final rotation angle accuracy of the output shaft can be better guaranteed.

[0024] (3) After the main shaft rotates to the set angle in one direction, it is limited by the limiting structure on the outer periphery of the bottom of the main shaft to ensure the accuracy of the output shaft rotation angle. At the same time, the locking unit limits the upper end of the main shaft, and the locking arm can lock the lock plate so that the main shaft cannot rotate, thereby achieving up and down bidirectional limiting. It ensures that the output shaft does not move due to changes in external force after docking with the switch body, ensuring the stability of the output angle of the operating mechanism. When unlocking is required, it is unlocked through the matching unlocking structure, and the main shaft can rotate in the opposite direction.

[0025] (4) The electrical interlocking unit, in which the push plate and the slide plate are cleverly coordinated, and the layout of the micro switch and the auxiliary switch enables the push plate to synchronously trigger the micro switch and the auxiliary switch regardless of whether the spindle rotates in the forward or reverse direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional diagram of the operating mechanism of the disconnector of the present invention;

[0027] Figure 2 yes Figure 1 A schematic diagram showing the structure shown after removing some outer parts;

[0028] Figure 3 It is a schematic diagram of the coordination of the main transmission components;

[0029] Figure 4 It is a schematic diagram of the cooperation between the turbine and the push plate;

[0030] Figure 5 It is a schematic diagram of the cooperation between the push plate and the limit structure;

[0031] Figure 6 is a schematic diagram of a locking unit and an unlocking unit (in a locked state);

[0032] Figure 7 is a schematic diagram of a locking unit and an unlocking unit (in an unlocked state);

[0033] Figure 8 It is an exploded view of a part of the structure of the isolating switch operating mechanism of the present invention;

[0034] Fig. 9 is a top view of the electrical interlocking unit (the push plate is in the first state);

[0035] Fig.10 3 is a top view of the electrical interlock unit (the push plate is in the second state).

[0036] The names corresponding to the marks in the figure are:

[0037] 11. Motor; 12. Motor gear; 13. Worm gear; 14. Worm;

[0038] 21. turbine; 22. main shaft; 23. push plate; 231. driving groove; 232. stop cam; 24. driving member; 25. driving gear; 26. support seat;

[0039] 3. Limiting structure; 31. Fixed seat; 32. Adjusting bolt; 33. Limiting arm; 34. Limiting part;

[0040] 41. output gear; 42. output shaft;

[0041] 51. Connecting bolt; 52. Driving bolt; 53. Positioning bolt; 54. First micro switch; 55. Second micro switch; 56. Push plate; 561. First push plate; 562. Second push plate; 563. Triggering part; 57. Slide plate; 571. Positioning long groove; 572. Articulated long hole; 573. First push groove; 574. Second push groove; 58. Arc groove; 59. Guide slope;

[0042] 6. Frame; 61. Top plate;

[0043] 71. unlocking part; 72. lock plate; 721. first stop surface; 722. second stop surface; 73. first locking arm; 731. first locking part; 74. second locking arm; 741. second locking part; 75. tension spring; 76. hinged part; 77. auxiliary arm;

[0044] 8. Auxiliary switch; 81. Crank arm;

[0045] 9. Auxiliary push plate; 91. Notch. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0047] Example:

[0048] like Figure 1-Figure 10 As shown, an isolating switch operating mechanism includes a driving unit, a transmission unit, an output unit, a locking unit, an unlocking unit and an electrical interlocking unit, and each unit is arranged on a frame 6. The specific structure, position and mutual coordination relationship of each part are described below.

[0049] like Figure 1 and Figure 3As shown, the drive unit includes a motor 11, a worm wheel 21, and a worm 14. The motor 11 and the worm 14 are in driving cooperation. The motor shaft of the motor 11 is provided with a motor gear 12. One end of the worm 14 is provided with a worm gear 13. The worm gear 13 meshes with the motor gear 12. The worm gear 13 and the motor gear 12 are distinguishing definitions of gears, and both are spur gears. The worm 14 is assembled on two support seats 26 in the frame 6.

[0050] like Figure 4 As shown, the transmission unit includes a main shaft 22 and a turbine 21. The main shaft 22 and the turbine 21 are rotatably assembled, and the main shaft 22 and the turbine 21 are rotatably assembled through bearings, that is, the main shaft 22 and the turbine 21 rotate asynchronously. A driving member 24 is provided below the turbine 21, and a push plate is fixedly mounted on the main shaft 22. The driving member 24 is used to push the push plate to rotate. A driving gear 25 is provided on the main shaft 22 for cooperating with the output unit.

[0051] The driving member 24 is eccentrically arranged and adopts a hexagon socket head bolt. The hexagon socket head bolt passes through the turbine 21, with its cylindrical head facing downward, and uses the cylindrical head as the driving part. A driving groove 231 is provided on one side of the outer circumference of the push plate 23. The driving groove 231 runs through the thickness direction of the push plate, and the groove bottom of the driving groove 231 is arc-shaped. The length of the driving groove 231 is greater than the outer diameter of the cylindrical head of the hexagon socket head bolt. The driving groove 231 and the driving member 24 are bidirectional transmission cooperation, that is, the push plate 23 can be forward or reverse.

[0052] A stop protrusion 232 is provided on the other side of the outer circumference of the push plate 23 for engaging with the limiting structure 3 after rotating to a certain angle.

[0053] like Figure 5 As shown, the limiting structure 3 includes a fixed seat 31 and a limiting arm 33. One end of the limiting arm 33 is rotatably assembled on the main shaft 22, and the two are connected by a bearing steel bushing. A limiting portion 34 is provided at the other end of the limiting arm 33, which is used to cooperate with the stop convex 232. The fixed seat 31 is used to limit the rotation angle of the other end of the limiting arm 33. An adjusting bolt 32 is provided on both sides of the fixed seat 31, and one end of the adjusting bolt 32 is used to limit the other end of the limiting arm 33. By screwing the adjusting bolt 32, the limiting angle can be adjusted.

[0054] like Figure 2 As shown, the output unit includes an output shaft 42 and an output gear 41 located on the output shaft 42, and the output gear 41 is in transmission cooperation with the driving gear 25 on the main shaft 22. The output shaft 42 is used to connect with the isolating switch body, and the isolating switch is closed or opened by forward or reverse rotation. Through the transmission of the above components, the output shaft 42 can rotate according to the set angle and output the set torque.

[0055] The above-mentioned limiting structure 3 can limit the rotational position of the main shaft 22, but in order to improve the stability and accuracy of the mechanism action, the present invention also designs a locking unit and a matching unlocking unit.

[0056] like Figure 6-Figure 8 As shown, the locking unit includes a first locking arm 73, a second locking arm 74 and a locking plate 72. The locking plate 72 and the main shaft 22 are assembled to prevent rotation through a double flat key, that is, the locking plate 72 rotates synchronously with the main shaft 22. One end of the first locking arm 73 and the second locking arm 74 is a hinged portion 76, both of which are hinged on the top plate 61 of the frame 6. The other ends of the first locking arm 73 and the second locking arm 74 are connected by an elastic member; the elastic member adopts a tension spring 75, and the other ends of the first locking arm 73 and the second locking arm 74 are arranged at intervals. The tension spring 75 is located at the interval between the first locking arm 73 and the second locking arm 74, and the two ends of the tension spring 75 are respectively hung with the other ends of the first locking arm 73 and the second locking arm 74.

[0057] The middle sections of the first locking arm 73 and the second locking arm 74 are convex, and a curved notch is formed on the corresponding inner side, and the curved notch is an irregular C-shaped notch. The curved notches of the first locking arm 73 and the second locking arm 74 are located at the periphery of the lock plate 72. The first locking portion 731 and the second locking portion 741 are respectively provided at one end of the curved notch corresponding to the first locking arm 73 and the second locking arm 74. The first locking portion 731 and the second locking portion 741 are on the side close to the tension spring 75, and the first locking portion 731 and the second locking portion 741 can be understood as an arc-shaped convex head.

[0058] The structure of the lock plate 72 can be understood as follows: a disk is formed by cutting off a part of the structure, and the lock plate 72 has a second stop surface 722 symmetrically arranged with the first stop surface 721. The first stop surface 721 and the second stop surface 722 are connected by a transition surface; when the first locking portion 731 abuts against the first stop surface 721, the lock plate 72 is in a locked state. After the lock plate 72 rotates counterclockwise by a certain angle, the first locking portion 731 abuts against the second stop surface 722, so that the lock plate 72 is in another locked state.

[0059] like Figure 6-Figure 7 As shown, the unlocking unit includes an unlocking portion 71, which is disposed on the turbine 21. The unlocking portion 71 rotates synchronously with the turbine 21, and when the lock plate 72 is in the locked state, the unlocking portion 71 is in a state of pushing the second lock arm 74 open; when the lock plate 72 is in the unlocked state, the unlocking portion 71 is in a state of pushing the first lock arm 73 open.

[0060] An auxiliary arm 77 is provided on the lower side of a section of the first locking arm 73 and the second locking arm 74 close to the hinge, and the unlocking portion 71 contacts the inner side of the auxiliary arm 77 when rotating.

[0061] The unlocking portion 71 is a special-shaped nut, which is installed at one end of a bolt, and the bolt is the driving member 24 mentioned above. The special-shaped nut serves as both the nut of the bolt and the unlocking portion 71. The difference between the special-shaped nut and the conventional hexagonal nut is that most of the outer side surface of the special-shaped nut is a cylindrical surface, and planes are cut on the opposite sides of the cylindrical surface for the tool to cooperate when the nut is tightened; the cylindrical surface is used to cooperate with the inner side surface of the auxiliary arm 77.

[0062] like Figure 6 As shown, the lock plate 72 is in a locked state, the unlocking portion 71 is in a state of pushing the second lock arm 74 open, and one end of the second lock arm 74 is pulled by the tension spring 75 to make the first lock arm 73 move toward the lock plate 72, and finally the first lock portion 731 of the first lock arm 73 abuts against the first stop surface 721, so that the lock plate 72 cannot continue to rotate clockwise, and thus the main shaft 22 and the output shaft 42 cannot rotate clockwise. Figure 7 As shown, when unlocking is required, the turbine 21 rotates counterclockwise, driving the unlocking portion 71 to rotate counterclockwise. After rotating a certain angle, the unlocking portion 71 begins to contact the first locking arm 73 and pushes the first locking arm 73 open, so that the first locking portion 731 of the first locking arm 73 releases the restriction on the first stop surface 721. After unlocking, the main shaft 22 rotates clockwise under the push of the push plate, and the lock plate 72 rotates clockwise synchronously. When the main shaft 22 rotates clockwise to the position limited by the limiting structure 3, the lock plate 72 rotates clockwise to another locking state where the second stop surface 722 cooperates with the first locking portion 731.

[0063] When the main shaft 22 rotates to a certain angle, that is, the end of the limit arm 33 is stopped in the fixing seat 31, the upper end of the main shaft 22 is limited by the locking unit, thereby realizing the upper and lower bidirectional limit, ensuring that the output shaft 42 does not move due to external force changes after docking with the switch body, and ensuring the stability of the output angle of the mechanism. When unlocking is required, the unlocking structure is used to unlock, and the main shaft 22 can rotate in the opposite direction.

[0064] like Figure 1 , Fig. 9 and Fig.10 As shown, the electrical interlocking unit includes a push plate, a slide plate 57, a micro switch and an auxiliary switch 8.

[0065] One end of the push plate 56 is connected to the upper part of the main shaft 22, and the other end is provided with a pushing part and a triggering part 563. The push plate 56 includes a first push plate 561 and a second push plate 562. The first push plate 561 is connected to the upper end surface of the main shaft 22 by three bolts, and the first push plate 561 is arranged vertically with the main shaft 22. In order to facilitate the distinction of bolts at various positions, the bolts connecting the first push plate 561 and the main shaft 22 are defined as connecting bolts 51. The second push plate 562 is connected to a section of the first push plate 561 away from the main shaft 22 by two bolts. The pushing part and the triggering part 563 are both on the second push plate 562. The length of the second push plate 562 is less than that of the first push plate 561, which is equivalent to increasing the overall thickness of the plate in the area where the second push plate 562 is located.

[0066] like Fig. 9 As shown, the two bolts connecting the first push plate 561 and the second push plate 562 are both hexagon socket head bolts. The cylindrical head of one hexagon socket head bolt close to the main shaft 22 is on the upper side of the second push plate 562; and the cylindrical head of the other hexagon socket head bolt is located on the lower side of the first push plate 561. The pushing part is formed by the hexagon socket head, and the bolt is defined as the driving bolt 52.

[0067] A first push groove 573 and a second push groove 574 are provided on one side of the slide plate 57. Both the first push groove 573 and the second push groove 574 are open for the push portion to selectively enter and cooperate with the push portion. A hinged long hole 572 is provided on the other side of the slide plate 57. The hinged long hole 572 is hinged to one end of the crank arm 81 in the auxiliary switch 8. The slide plate 57 moves linearly to drive the crank arm 81 to rotate. The crank arm 81 drives the auxiliary switch 8 to rotate. The auxiliary switch 8 is a part of the main switch and is configured in power equipment such as high-voltage or medium-voltage circuit breakers and disconnectors to serve as the opening, closing, signal control and interlocking protection of the secondary control circuit.

[0068] The slide plate 57 is provided with four positioning long grooves 571, and the length direction of the positioning long grooves 571 is consistent with the movement direction of the slide plate 57; the slide plate 57 is arranged on the upper side of the top plate 61 of the frame 6, and the top plate 61 is provided with positioning bolts 53, and the positioning bolts 53 pass through the corresponding positioning long grooves 571. Under the cooperation of the positioning bolts 53 and the positioning long grooves 571, the slide plate 57 can only move in the left and right directions, and its travel is limited by the positioning long grooves 571.

[0069] There are two micro switches spaced apart and arranged on the top plate 61, which are defined as a first micro switch 54 and a second micro switch 55. The two micro switches are located on the rotation track of the trigger part 563, and the micro switches can be triggered by the trigger part 563 when the push plate rotates to the corresponding position.

[0070] The principle of the linkage between the micro switch and the auxiliary switch 8 is as follows:

[0071] exist Fig. 9 In the state shown, the push portion at one end of the push plate is located in the first push groove 573. When the push plate rotates counterclockwise with the main shaft 22, the push plate can drive the slide plate 57 to move leftward, and the push portion gradually disengages from the first push groove 573. The push plate continues to rotate until the push plate rotates to Fig.10 In the state shown, the push part enters the second push groove 574, and the second micro switch 55 is triggered. In the process of the push part entering the second push groove 574, the slide plate 57 moves to the left and its right end drives the crank arm 81 to rotate to the right position, triggering the auxiliary switch 8. Fig.10 Change to Fig. 9 In the state shown, the main shaft 22 drives the push plate to rotate clockwise. Fig. 9 and Fig.10 The two states correspond to the open and closed positions of the disconnector.

[0072] A buffer portion is disposed on the slide plate 57 between the first push groove 573 and the second push groove 574 . The buffer portion has an arc-shaped groove 58 facing one side of the main shaft 22 .

[0073] The main shaft 22 is fixed with an auxiliary push plate 9, and the two can be connected by a flat key. The auxiliary push plate 9 is a circular plate, and the outer circumference of the auxiliary push plate 9 has a notch 91. During a certain period of rotation of the auxiliary push plate 9, one end of the buffer part is located in the notch 91. Fig. 9 In the above state, when the auxiliary push plate 9 rotates counterclockwise, the right part of the notch 91 of the auxiliary push plate 9 is located in the arc groove 58 of the slide plate 57, which can buffer the leftward movement of the slide plate 57 and prevent the slide plate 57 from moving left suddenly. By controlling its movement characteristics, it is ensured that when the push plate rotates counterclockwise to the second push groove 574 area, the push part at one end of the push plate can smoothly enter the second push groove 574. Fig.10 Towards Fig. 9 When the state switches clockwise, it can also play a buffering role.

[0074] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

[0075] The "connection" mentioned in the present invention includes direct and indirect connection unless otherwise specified. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0076] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

Claims

1. An isolating switch operating mechanism, characterized in that: It includes a driving unit, which includes a motor, a worm gear, and a worm, and the motor and the worm gear are driven together; The transmission unit includes a main shaft, which is rotatably assembled with the turbine, a driving member is provided on the lower end surface of the turbine, a push plate is fixedly mounted on the main shaft, the driving member is used to push the push plate to rotate, and a driving gear is provided on the main shaft; the output unit includes an output shaft and an output gear located on the output shaft, and the output gear is in transmission cooperation with the driving gear; The locking unit comprises a first locking arm, a second locking arm and a locking plate, the locking plate is assembled with the main shaft to stop rotation, one end of the first locking arm and the second locking arm are both hinged, and the other ends of the first locking arm and the second locking arm are connected by an elastic member; a first locking portion is provided on the inner side of the first locking arm, and when the first locking portion abuts against the first stop surface, the locking plate is in a locked state; The unlocking unit comprises an unlocking part arranged on the turbine, the unlocking part rotates synchronously with the turbine, and when the lock plate is in the locked state, the unlocking part is in the state of pushing the second lock arm open; when the lock plate is in the unlocked state, the unlocking part is in the state of pushing the first lock arm open; The electrical interlocking unit includes a push plate, a slide plate, a micro switch and an auxiliary switch. One end of the push plate is connected to the upper part of the main shaft, and the other end is provided with a pushing part and a triggering part; one side of the slide plate is provided with a first push groove and a second push groove, and the first push groove and the second push groove are both open to allow the pushing part to selectively enter and cooperate with them in transmission; the other side of the slide plate is provided with a hinged long hole, which is hinged to one end of a crank arm in the auxiliary switch, and the slide plate moves linearly to drive the crank arm to rotate; the micro switch is located on the rotation trajectory of the triggering part and can be triggered by the triggering part.

2. The isolating switch operating mechanism according to claim 1, characterized in that: The driving member is eccentrically arranged, and a driving groove is provided on one side of the outer circumference of the push plate, and the driving groove and the driving member are in bidirectional transmission cooperation; a stop convex is provided on the other side of the outer circumference of the push plate, which is used to cooperate with the limit structure after rotating a certain angle.

3. The isolating switch operating mechanism according to claim 2, characterized in that: The limiting structure includes a fixed seat and a limiting arm. One end of the limiting arm is rotatably assembled on the main shaft, and the other end is provided with a limiting portion for cooperating with the stop cam. The fixed seat is used to limit the rotation angle of the other end of the limiting arm; an adjusting bolt is provided on the fixed seat, and one end of the adjusting bolt is used to limit the other end of the limiting arm.

4. The isolating switch operating mechanism according to claim 1, characterized in that: The elastic member adopts a tension spring, and the other ends of the first locking arm and the second locking arm are spaced apart. The tension spring is located at the interval between the first locking arm and the second locking arm, and the two ends of the tension spring are respectively connected to the other ends of the first locking arm and the second locking arm; the middle sections of the first locking arm and the second locking arm are convexly arranged, and curved grooves are formed on the corresponding inner sides, and the curved grooves of the first locking arm and the second locking arm are located on the periphery of the locking disk.

5. The isolating switch operating mechanism according to claim 4, characterized in that: The first locking portion and the second locking portion are respectively provided at one end of the curved grooves corresponding to the first locking arm and the second locking arm. The locking disk is formed by cutting off part of the structure of a circular disk. The locking disk has a second stop surface symmetrically arranged with the first stop surface, and the first stop surface and the second stop surface are connected by a transition surface. After the locking disk rotates counterclockwise by a certain angle, the first locking portion abuts against the second stop surface so that the locking disk is in another locking state.

6. The isolating switch operating mechanism according to claim 4, characterized in that: An auxiliary arm is provided on the lower side of a section of the first locking arm and the second locking arm close to the hinge, and the unlocking portion contacts the inner side surface of the auxiliary arm when rotating.

7. The isolating switch operating mechanism according to claim 1, characterized in that: The slide plate is provided with a plurality of long positioning grooves, the length direction of which is consistent with the movement direction of the slide plate; the isolating switch operating mechanism comprises a frame, the slide plate is arranged on the upper side of the top plate of the frame, the top plate is provided with positioning bolts, and the positioning bolts pass through the long positioning grooves.

8. The isolating switch operating mechanism according to claim 7, characterized in that: The micro switches include two micro switches which are spaced apart and arranged on the top plate.

9. The isolating switch operating mechanism according to claim 1, characterized in that: A buffer portion is provided on the slide plate between the first push groove and the second push groove, and the buffer portion has an arc groove facing the main shaft side; an auxiliary push plate is mounted on the main shaft to prevent rotation, and the auxiliary push plate is a circular plate with a notch on its outer periphery. During one section of the rotation of the auxiliary push plate, one end of the buffer portion is located in the notch.

10. The isolating switch operating mechanism according to claim 1, characterized in that: When the pushing part rotates counterclockwise with the main shaft, it rotates out from the first pushing groove and finally enters the second pushing groove; when the pushing part rotates clockwise with the main shaft, it rotates out from the second pushing groove and finally enters the first pushing groove; when the pushing part cooperates with the first pushing groove or the second pushing groove, it can drive the slide plate to move in a straight line.

Images