Operating mechanism for a switching device

Abstract

The operating mechanism of a switch device is characterized in that it comprises a support, a slide plate arranged in the support and capable of sliding back and forth between a normal side and a standby side, an output system corresponding to electromagnets on the normal side and the standby side in the support, a turnover pull rod mechanism, a rotating lever and a corresponding main spring, which jointly realize corresponding closing and opening operations between the normal side power supply and the standby side power supply and self-locking in corresponding positions. The operating mechanism can realize stable conversion between the normal side power supply closing and the standby side power supply closing of the dual power automatic transfer switch. When the two position conversion ends and remains in the terminal position, corresponding locking devices are arranged to lock the corresponding positions, and the manual closing and opening operations do not require manual operation. The operating mechanism of the dual power automatic transfer switch has modularized part position layout, compact structure, convenient and fast installation and maintenance, convenient operation and high reliability.

Description

Technical Field

[0001] This invention belongs to the field of low-voltage electrical technology, specifically relating to an operating mechanism for a switching device, particularly suitable for dual-power automatic transfer switches. Background Technology

[0002] Automatic transfer switches (ATS) are widely used in modern power transmission and distribution systems, especially in hospitals, intelligent buildings, data centers, power plants, banks, and critical infrastructure where continuous power supply is crucial. During operation, the reliability and stability of the ATS directly affect the continuous power output of the transmission and distribution lines. There are two-position and three-position ATS. A two-position ATS switches switch between two states: the primary power supply is closed (while the backup power supply is open) and the backup power supply is closed (while the primary power supply is open), ensuring a continuous, stable, and reliable power output from the transmission and distribution lines.

[0003] As the core component of a dual-power automatic transfer switch, the operating mechanism provides the kinetic energy for position switching and, through its output, drives the contact system of the automatic transfer switch to switch the closed position between the normal power supply and the standby power supply. The operating mechanism of a two-position automatic transfer switch has two states, corresponding to the closed position of the normal power supply and the closed position of the standby power supply, respectively. However, in existing technologies, two-position automatic transfer switches have locking mechanisms on both the normal and standby sides, and these mechanisms do not interfere with each other. This can easily lead to situations where only one side is locked, while the other side remains unlocked, resulting in misoperation. Furthermore, existing dual-power automatic transfer switches have a dual-spindle structure, which cannot meet the requirement of same-side wiring. Another issue is that existing dual-power automatic transfer switches require manual operation for closing and opening, which can be problematic if the manual operation is too small, making it impossible to complete the action, or if the manual operation is too large, it can easily damage the switch. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing dual-power automatic transfer switch operating mechanisms by providing an operating mechanism for a switchgear that enables stable switching between two states: the primary power supply is closed (while the backup power supply is open) and the backup power supply is closed (while the primary power supply is open). After the switching is completed and the switch remains in the final position, corresponding locking devices are used to lock the position, preventing the risk of malfunction. Furthermore, it meets the requirement that manual closing and opening are independent of human intervention. The entire dual-power automatic transfer switch operating mechanism features a modular component layout, a compact structure, convenient and quick installation and maintenance, easy operation, and high reliability.

[0005] Technical solution

[0006] To achieve the above-mentioned technical objectives, the present invention provides an operating mechanism for a switching device, characterized in that: it includes a bracket, one side of which is a normal operating side and the other side is a standby side; a sliding plate is disposed within the bracket and can slide back and forth between the normal operating side and the standby side; the normal operating side and the standby side of the sliding plate are linked to corresponding electromagnets by corresponding flip-pull rod mechanisms; one end of an output system is rotatably mounted on the bracket, and the other end is located outside the bracket; the normal operating side and the standby side within the bracket are also provided with corresponding rotating levers and corresponding main springs; the output system is linked with the corresponding rotating levers and corresponding main springs on the normal operating side and the standby side within the bracket; the output system can rotate back and forth under the combined action of the corresponding electromagnets, flip-pull rod mechanisms, rotating levers, and corresponding main springs on the normal operating side and the standby side within the bracket, thereby realizing the corresponding opening and closing operations between the power supply on the normal operating side and the power supply on the standby side; when the output system is in the closed position on the normal operating side and the standby side, it can self-lock under the combined action of the corresponding rotating levers, main springs, and flip-pull rod mechanisms on the normal operating side and the standby side.

[0007] Furthermore, the bracket is equipped with a toggle lever, which is rotatably mounted on the bracket. The toggle lever is provided with a sliding plate linkage part, which enables the toggle lever to drive the sliding plate to slide back and forth between the commonly used side and the spare side on the bracket.

[0008] Furthermore, the actuating lever is provided with an output system through hole for the output system to pass through.

[0009] Furthermore, the support is equipped with corresponding indicating mechanisms on the commonly used side and the standby side. The corresponding rotating lever is linked with the corresponding indicating mechanism to indicate the opening and closing status of the commonly used power supply and the standby power supply.

[0010] Furthermore, the bracket is provided with a mounting through hole for mounting the output system. The bracket has corresponding arc-shaped elongated slots on the commonly used side and the spare side on both sides of the mounting through hole. A corresponding mounting shaft is provided on the inner side of the bracket between the mounting through hole and the corresponding arc-shaped elongated slot. An indicator return spring mounting shaft is provided on the inner side of the bracket below the mounting through hole. The commonly used side and the spare side on the front and rear surfaces of the bracket are provided with corresponding electromagnet mounting parts below the corresponding arc-shaped elongated slots. A toggle lever mounting shaft is provided on the front surface of the bracket at a corresponding position below the mounting through hole.

[0011] Furthermore, the corresponding flip lever mechanism on the commonly used side and the spare side includes a corresponding flip lever, which is rotatably mounted on a corresponding mounting shaft. The corresponding flip lever is pivotally connected to the corresponding side of the sliding plate via a corresponding sliding plate shaft. The corresponding flip lever is provided with a corresponding flip limit linkage shaft, the two ends of which are located in the corresponding arc-shaped long slot. The corresponding flip lever is also provided with a pull rod linkage part. The corresponding pull rod on the commonly used side and the spare side is provided with a pull rod linkage hole corresponding to the pull rod linkage part on the corresponding flip lever. The corresponding pull rod is linked to the pull rod linkage part on the corresponding flip lever via the pull rod linkage hole. The corresponding pull rod is also provided with an electromagnet linkage part, which is linked to the iron core of the corresponding electromagnet via the electromagnet linkage part.

[0012] Furthermore, the corresponding rotating levers on the commonly used side and the spare side of the bracket are rotatably mounted on the corresponding mounting shafts. The corresponding rotating levers are linked with the output system via the corresponding rotating linkage shafts. The corresponding rotating levers are also provided with indicator linkage parts for linking the corresponding indicator mechanisms.

[0013] Furthermore, one end of the corresponding main spring on the commonly used side and the spare side of the bracket is mounted on the corresponding flip-limit linkage shaft, and the other end is mounted on the corresponding rotation linkage shaft.

[0014] Furthermore, the output system includes a mounting sleeve, which is rotatable within the mounting through hole. The output shaft is mounted within the mounting sleeve, and the rotation of the mounting sleeve within the mounting through hole drives the output shaft to rotate. The mounting sleeve has corresponding linkage cantilever arms on the commonly used side and the spare side, and each linkage cantilever arm has a linkage slot. A linkage limit part is provided within the linkage slot. The corresponding rotation linkage shaft is located within the corresponding linkage slot, causing the corresponding rotating levers on the commonly used side and the spare side of the bracket to rotate, thereby linkage the mounting sleeve and thus the output shaft.

[0015] Furthermore, the corresponding indicating mechanisms on the commonly used side and the spare side of the bracket include indicating elements. The indicating elements are rotatably mounted on corresponding mounting shafts. The indicating elements are provided with indicating triggering parts and indicating linkage parts. The indicating triggering parts are linked to the indicating linkage parts provided on the rotating lever. The indicating linkage parts of the corresponding indicating mechanisms are linked to the corresponding flip-limit linkage shafts. The indicating elements are also provided with reset spring connecting parts. One end of the reset spring of the corresponding indicating elements on the commonly used side and the spare side of the bracket is connected to the corresponding reset spring connecting parts, and the other end is connected to the corresponding indicating element reset spring mounting shaft. The indicating elements are provided with closing and opening indicating areas for indicating the closing and opening status during the rotation of the indicating elements.

[0016] Furthermore, the bracket includes a pair of side plates, which are connected and fixed together by a plurality of bracket connecting shafts.

[0017] Furthermore, when the power supply on the normal side is in the closed position, the line connecting the rotation center of the flip limit linkage shaft on the standby side and the rotation center of the rotation linkage shaft on the standby side is located above the rotation center of the rotation lever on the standby side, and the line connecting the rotation center of the flip limit linkage shaft on the normal side and the rotation center of the rotation linkage shaft on the normal side is located below the rotation center of the rotation lever on the normal side. The normal line of the contact surface between the linkage limit part in the linkage slot hole on the standby side and the rotation linkage shaft on the standby side points to the rotation center of the rotation lever on the standby side.

[0018] When the backup power supply is in the closed position, the line connecting the rotation center of the flip limit linkage shaft and the rotation linkage shaft on the normal side is located above the rotation center of the rotating lever on the normal side, and the line connecting the rotation center of the flip limit linkage shaft and the rotation linkage shaft on the backup side is located below the rotation center of the rotating lever on the backup side. The normal line of the contact surface between the linkage limit part in the linkage slot hole on the normal side of the mounting bushing and the rotating linkage shaft on the normal side points to the rotation center of the rotating lever on the normal side.

[0019] Furthermore, when the corresponding flip levers on the commonly used side and the spare side rotate to the point where the line connecting the rotation center of the corresponding flip limit linkage shaft and the corresponding rotation linkage shaft passes through the rotation center of the corresponding rotating lever, the corresponding main springs on the commonly used side and the spare side do not cause the corresponding rotating levers to generate rotational torque, thereby placing the corresponding rotating levers in a dead position.

[0020] Beneficial effects

[0021] The present invention provides an operating mechanism for a switchgear that enables a dual-power automatic transfer switch to stably switch between two states: the primary power supply is closed (while the backup power supply is open) and the backup power supply is closed (while the primary power supply is open). After the switch is completed and remains in the terminated position, there are corresponding locking devices to lock the corresponding position, avoiding the risk of product malfunction. It also meets the requirement that manual closing and opening are not subject to human operation. The entire operating mechanism of the dual-power automatic transfer switch has a modular component layout, a compact structure, convenient and quick installation and maintenance, easy operation, and high reliability. Attached Figure Description

[0022] Appendix Figure 1 This is a schematic diagram of the operating mechanism according to an embodiment of the present invention;

[0023] Appendix Figure 2 This is a schematic diagram of the operating mechanism according to an embodiment of the present invention;

[0024] Appendix Figure 3a This is a schematic diagram of the structure of side plate one in an embodiment of the present invention. Figure 1 ;

[0025] Appendix Figure 3b This is a schematic diagram of the structure of side plate one in an embodiment of the present invention. Figure 2 ;

[0026] Appendix Figure 4 This is a schematic diagram of the structure of side plate two in an embodiment of the present invention;

[0027] Appendix Figure 5 This is a schematic diagram of the flipping lever in an embodiment of the present invention;

[0028] Appendix Figure 6 This is a schematic diagram of the rotating lever in an embodiment of the present invention;

[0029] Appendix Figure 7 This is a schematic diagram of the structure for installing the bushing in an embodiment of the present invention;

[0030] Appendix Figure 8 This is a schematic diagram of the skateboard structure in an embodiment of the present invention;

[0031] Appendix Figure 9 This is a schematic diagram of the lever structure in an embodiment of the present invention;

[0032] Appendix Figure 10a This is a schematic diagram of the structure of the indicator on the commonly used side in the embodiments of the present invention;

[0033] Appendix Figure 10b This is a schematic diagram of the structure of the indicator on the spare side in an embodiment of the present invention;

[0034] Appendix Figure 11 This is a schematic diagram showing the connection relationship between the electromagnet, the pull rod, and the flipping lever in an embodiment of the present invention;

[0035] Appendix Figure 12 This is a schematic diagram of the operating mechanism in the standby power supply closed state in an embodiment of the present invention. Figure 1 ;

[0036] Appendix Figure 13 This is a schematic diagram of the operating mechanism in the standby power supply closed state in an embodiment of the present invention. Figure 2 ;

[0037] Appendix Figure 14 This is a schematic diagram (3) showing the operating mechanism in the standby power supply closed state in an embodiment of the present invention;

[0038] Appendix Figure 15 This is a schematic diagram of the operating mechanism in this embodiment of the invention, showing the rotating lever in the dead position for switching from the standby power supply to the normal power supply.

[0039] Appendix Figure 16 This is a schematic diagram of the operating mechanism in this embodiment of the invention, showing the rotating lever passing the dead point position when switching from the standby power supply to the normal power supply.

[0040] Appendix Figure 17 This is a schematic diagram of the commonly used side power supply closing in the operating mechanism of this invention embodiment. Figure 1 ;

[0041] Appendix Figure 18 This is a schematic diagram of the commonly used side power supply closing in the operating mechanism of this invention embodiment. Figure 2 ;

[0042] Appendix Figure 19 This is a schematic diagram of the commonly used side power supply closing in the embodiment of the present invention;

[0043] Appendix Figure 20 This is a schematic diagram of the indicator status when the operating mechanism is in the standby power supply closed (normal power supply open) position in an embodiment of the present invention.

[0044] Appendix Figure 21 This is a schematic diagram of the indicator status when the operating mechanism is in the position of the normal power supply closed (standby power supply open) in an embodiment of the present invention; Detailed Implementation

[0045] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] In the description of this invention, it should be noted that the terms "inner," "outer," "front," "rear," "left," "right," "usual side," and "spare side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0049] Example

[0050] As attached Figure 1 and 2 As shown, an operating mechanism for a switching device includes a bracket 1, one side of which is the normal operating side and the other side is the standby side, as shown in the attached diagram. Figure 8 The slide plate 2 shown is positioned within the bracket 1 and can slide back and forth between the commonly used side and the spare side. The commonly used side and the spare side of the slide plate 2 are linked by corresponding flip-pull mechanisms A, A' and corresponding electromagnets B, B'. One end of the output system 3 is rotatably mounted on the bracket 1, and the other end is located outside the bracket 1. A toggle lever 4 is mounted on the bracket 1 and is rotatably mounted on the bracket 1, as shown in the attached diagram. Figure 9 As shown, the actuating lever 4 is provided with a slide linkage part 401. The actuating lever 4 uses the slide linkage part 401 to drive the driven shaft 2b on the slide plate 2, causing the slide plate 2 to slide back and forth between the commonly used side and the spare side on the bracket 1. The actuating lever 4 is provided with an output system through hole 402 for the output system 3 to pass through. The support 1 is equipped with corresponding rotating levers C and C' and corresponding main springs D and D' on the commonly used and standby sides. The output system 3 is linked with the corresponding rotating levers C and C' and corresponding main springs D and D' on the commonly used and standby sides of the support 1. The output system 3 can rotate back and forth under the combined action of the corresponding electromagnets B and B' or actuating levers 4, flipping lever mechanisms A and A', rotating levers C and C' and corresponding main springs D and D' on the commonly used and standby sides of the support 1, thereby realizing the corresponding opening and closing operations between the commonly used and standby power supplies. When the output system 3 is in the closed position on the commonly used and standby sides, it can be self-locked under the combined action of the corresponding rotating levers C and C', main springs D and D' and flipping lever mechanisms A and A' on the commonly used and standby sides. The support 1 is equipped with corresponding indicating mechanisms E and E' on the commonly used and standby sides. The corresponding rotating levers C and C' and the corresponding indicating mechanisms E and E' are linked to indicate the corresponding opening and closing status of the commonly used and standby power supplies.

[0051] The specific structure of each part in this embodiment is described in further detail below, as shown in the attached figure. Figure 1 As shown in 3a, 3b and 4, the bracket 1 includes a pair of side plates 101, 101', which are connected and fixed together by a plurality of bracket connecting shafts 1a. The bracket 1 is provided with a mounting through hole 102 for mounting the output system 3. The bracket 1 has corresponding arc-shaped long slots 103 and 103' on the commonly used side and the spare side on both sides of the mounting through hole 102. The bracket 1 has corresponding mounting shafts 104 and 104' on the inner side of the bracket 1 between the mounting through hole 102 and the corresponding arc-shaped long slots 103 and 103'. The bracket 1 has an indicator return spring mounting shaft 105 on the inner side of the bracket 1 below the mounting through hole 102. The bracket 1 has corresponding electromagnet mounting parts 106 and 106' on the commonly used side and the spare side on the outer front and rear surfaces below the corresponding arc-shaped long slots 103 and 103'. The electromagnet mounting parts 106 and 106' are bends on the pair of side plates 101 and 101'. The bracket 1 has a toggle lever mounting shaft 107 on the outer front surface below the mounting through hole 102.

[0052] As attached Figure 1 As shown in Figures 2 and 5, the corresponding flip lever mechanisms A and A' of the commonly used side and the spare side include corresponding flip levers A1 and A1'. The corresponding flip levers A1 and A1' are rotatably mounted on the corresponding mounting shafts 104 and 104' via mounting holes A1a and A1a'. The corresponding flip levers A1 and A1' are pivotally connected to the corresponding side of the slide plate 2 via corresponding slide plate shafts A2 and A2'. The corresponding slide plate shafts A2 and A2' pass through the slide plate connection holes A1b and A1b' on the corresponding flip levers A1 and A1' and the flip lever connection holes 2a and 2a' on the corresponding side of the slide plate 2. The corresponding flipping levers A1 and A1' are provided with corresponding flipping limit linkage shafts A101 and A101'. Both ends of the corresponding flipping limit linkage shafts A101 and A101' pass through the flipping limit linkage shaft mounting holes A1c and A1c' on the flipping levers A1 and A1', respectively, and are located within the corresponding arc-shaped elongated slots 103 and 103'. The corresponding flipping levers A1 and A1' are also provided with pull rod linkage parts A102 and A102'. In this embodiment, as shown in the attached... Figure 5 As shown, the connecting parts A102 and A102' of the pull rod are cylindrical protrusions, as shown in the attached diagram. Figure 1As shown in Figures 2 and 11, the corresponding pull rods A3 and A3' on the commonly used side and the spare side are provided with pull rod linkage holes A301 and A301' corresponding to the pull rod linkage parts A102 and A102' on the corresponding flip levers A1 and A1'. The corresponding pull rods A3 and A3' are linked and installed in conjunction with the pull rod linkage parts A102 and A102' on the corresponding flip levers A1 and A1' through the pull rod linkage holes A301 and A301'. The corresponding pull rods A3 and A3' are also provided with electromagnet linkage parts A302 and A302', which are linkage holes. The corresponding pull rods A3 and A3' are linked with the iron cores B01 and B01' of the corresponding electromagnets B and B' through the electromagnet linkage parts A302 and A302'.

[0053] As attached Figure 1 As shown in Figures 2 and 6, the corresponding rotating levers C and C' on the commonly used and spare sides of the bracket 1 are rotatably mounted on the corresponding mounting shafts 104 and 104' via rotating lever mounting holes Ca and Ca'. The corresponding rotating levers C and C' are linked to the output system 3 via corresponding rotating linkage shafts C1 and C1'. Both ends of the rotating linkage shafts C1 and C1' extend out of the rotating linkage shaft mounting holes C1a and C1a' of the rotating levers C and C'. The corresponding rotating levers C and C' are also provided with indicator linkage parts C2 and C2' for linking the corresponding indicator mechanisms E and E'. One end of the corresponding main springs D and D' on the commonly used and spare sides of the bracket 1 is mounted on the corresponding flip-limit linkage shafts A101 and A101', and the other end is mounted on the corresponding rotating linkage shafts C1 and C1'.

[0054] As attached Figure 1 and 2 As shown, the output system 3 includes a mounting sleeve 301, which is rotatable within the mounting through hole 102. An output shaft 302 is mounted within the mounting sleeve 301. During rotation within the mounting through hole 102, the mounting sleeve 301 can drive the output shaft 302 to rotate. Figure 7 As shown, the mounting bushing 301 is provided with corresponding linkage cantilever arms 301a and 301a' on the commonly used side and the spare side, respectively. The corresponding linkage cantilever arms 301a and 301a' are provided with linkage slots 301a01 and 301a01', respectively. Linkage limiting parts 301a0101 and 301a0101' are provided within the linkage slots 301a01 and 301a01', respectively. Figure 1 and 2As shown, the corresponding rotating linkage shafts C1 and C1' are located in the corresponding linkage slots 301a01 and 301a01', so that the corresponding rotating levers C and C' on the commonly used side and the spare side of the bracket 1 are linked to the mounting bushing 301 during rotation, and thus linked to the output shaft 302.

[0055] As attached Figure 1 As shown, the corresponding indicating mechanisms E, E' on the commonly used side and the spare side of the bracket 1 include indicating elements E1, E1'. The indicating elements E1, E1' are rotatably mounted on the corresponding mounting shafts 104, 104' via indicating element mounting holes E1a, E1a', as shown in the attached diagram. Figure 10a and 10b As shown, the indicator E1, E1' is provided with indicator triggering parts E101, E101' and indicator linkage parts E102, E102'. In this embodiment, the indicator triggering parts E101, E101' are bends on the indicator E1, E1'. The indicator triggering parts E101 and E101' are linked with the indicator linkage parts C2 and C2' provided on the rotating levers C and C'. The indicator linkage parts E102 and E102' of the corresponding indicator mechanisms E and E' are linked with the corresponding flip-limit linkage shafts A101 and A101'. The indicator parts E1 and E1' are also provided with reset spring connecting parts E103 and E103'. One end of the corresponding indicator reset springs E2 and E2' on the commonly used side and the spare side of the bracket 1 is connected to the corresponding reset spring connecting parts E103 and E103', and the other end is connected to the corresponding indicator reset spring mounting shaft 105. The indicator parts E1 and E1' are provided with closing and opening indicator areas E104 and E104' for indicating the closing and opening status during the rotation of the indicator parts E1 and E1'.

[0056] In this embodiment, when the backup power supply is in the closed state, the position states of each component are as follows: (see attached diagram) Figure 13 As shown, the standby side flip limit linkage shaft A101' is located at the bottom end of the arc-shaped long slot 103', and the flip lever A1' is at its maximum clockwise rotation angle position. The iron core B01' of the electromagnet B' on the standby side is in the retracted state. Since the flip levers A1 and A1' are simultaneously linked with the slide plate 2, the flip limit linkage shaft A101 is located at the upper part of the arc-shaped long slot 103, the commonly used side flip lever A1 is at its maximum clockwise rotation angle position, and the iron core B01 of the electromagnet B on the commonly used side is in the extended state.

[0057] As attached Figure 12 and 13As shown, the rotary lever C' on the standby side is at its maximum counterclockwise rotation position under the action of the main spring D', and its indicator linkage part C2' is in contact with the indicator trigger part E101' of the indicator E1' and overcomes the spring force of the indicator reset spring E2', so that the indicator E1' displays the closed state; the rotary lever C on the normal side is at its maximum counterclockwise rotation position under the action of the main spring D, and its indicator linkage part C2 is not in contact with the indicator trigger part E101 of the indicator E1. Under the action of the spring force of the indicator reset spring E2, its indicator linkage part E102 is limited by the flip limit linkage shaft A101, so that the indicator E1 displays the open state.

[0058] As attached Figure 14 As shown, the line connecting the rotation centers of the commonly used side flip-limit linkage shaft A101 and the commonly used side rotation linkage shaft C1 is located above the rotation center O of the commonly used side rotating lever C. The line connecting the rotation centers of the spare side flip-limit linkage shaft A101' and the spare side rotation linkage shaft C1' is located below the rotation center O' of the spare side rotating lever C'. The normal line a of the contact surface between the linkage limiting part 301a0101 in the commonly used side linkage slot 301a01 on the mounting bushing 301 and the commonly used side rotation linkage shaft C1 points to the rotation center O of the commonly used side rotating lever C. In this embodiment, the strokes of the commonly used side electromagnet B and the spare side electromagnet B' are relatively long. At this time, the commonly used side flip-limit linkage shaft A101... The upper top of the arc-shaped long slot 103 on the commonly used side and the lower top of the arc-shaped long slot 103' on the spare side are used to limit the position of the flip-limit linkage shaft A101' on the spare side. At the same time, the stroke of the electromagnet B on the commonly used side and the electromagnet B' on the spare side can also be used to limit the position of the flip-limit linkage shaft A101' on the commonly used side and the flip-limit linkage shaft A101' on the spare side. Specifically, when the stroke of the electromagnet B on the commonly used side and the electromagnet B' on the spare side is relatively short, the corresponding iron core B01' and iron core B01 can not move after they have reached the bottom, thereby achieving the purpose of limiting the position of the corresponding flip-limit linkage shaft A101 on the commonly used side and the flip-limit linkage shaft A101' on the spare side.

[0059] When the standby power supply switches from the closed state to the closed state of the normal power supply: rotate lever 4 counterclockwise, lever 4 drives slide plate 2 and causes slide plate 2 to move from right to left. Slide plate 2 drives flip levers A1 and A1' to rotate counterclockwise at the same time; or energize electromagnet B on the normal side, causing iron core B01 to retract, driving pull rod A3 and driving flip lever A1 to rotate counterclockwise. During the rotation, flip lever A1 drives flip lever A1' to rotate counterclockwise through slide plate 2.

[0060] When the flip lever A1 rotates until the line connecting the rotation centers of the flip limit linkage shaft A101 and the rotation linkage shaft C1 passes through the rotation center O of the corresponding rotating lever C, the flip lever A1' also rotates until the line connecting the flip limit linkage shaft A101' and the rotation linkage shaft C1' passes through the rotation center O' of the rotating lever C'. The main spring D on the normally used side does not generate a rotational torque on the corresponding rotating lever C, thus placing the corresponding rotating lever C in a dead position. Similarly, the main spring D' on the spare side does not generate a rotational torque on the corresponding rotating lever C', thus placing the corresponding rotating lever C' in a dead position. (See attached diagram) Figure 15 As shown.

[0061] As attached Figure 16 As shown, the flip levers A1 and A1' continue to rotate counterclockwise until they reach their positions. At this point, the line connecting the rotation centers of the flip limit linkage shaft A101 and the rotation linkage shaft C1 is below the rotation center O of the rotating lever C, and the line connecting the flip limit linkage shaft A101' and the rotation linkage shaft C1' is above the rotation center O' of the rotating lever C'. The rotating lever C is subjected to the spring force of the main spring D and a clockwise torque, while the rotating lever C' is subjected to the spring force of the main spring D' and a clockwise torque. Clockwise torque; the rotating lever C rotates clockwise, causing the rotating linkage shaft C1 to slide inside the linkage slot 301a01, and the rotating lever C' rotates clockwise, causing the rotating linkage shaft C'1 to slide inside the linkage slot 301a01'. During the sliding process, the rotating linkage shaft C and the rotating linkage shaft C' are linked to the mounting sleeve 301 to rotate counterclockwise. The counterclockwise rotation of the mounting sleeve 301 is linked to the output shaft 302 to also output counterclockwise rotation, thereby tripping the backup power supply.

[0062] The mounting sleeve 301 drives the output shaft 302 to rotate counterclockwise, disconnecting the standby power supply. After this, the line connecting the rotation centers of the flip limit linkage shaft A101 and the rotary linkage shaft C1 remains below the rotation center of the rotary lever C, and the line connecting the flip limit linkage shaft A101' and the rotary linkage shaft C1' remains above the rotation center of the rotary lever C'. The rotary lever C experiences a clockwise torque due to the spring force of the main spring D, and the rotary lever C' experiences a clockwise torque due to the spring force of the main spring D'. Under the action of the main springs D and D', the rotary levers C and C' drive the mounting sleeve 301 to rotate counterclockwise, which in turn drives the output shaft 302 to continue rotating counterclockwise, thus closing the normal power supply. (See attached diagram) Figure 17 and 18 As shown.

[0063] As attached Figure 19As shown, when the power supply on the normal side is in the closed position, the line connecting the rotation centers of the standby side flip limit linkage shaft A101' and the standby side rotation linkage shaft C1' is located above the rotation center of the standby side rotation lever C', and the line connecting the rotation centers of the normal side flip limit linkage shaft A101 and the normal side rotation linkage shaft C1 is located below the rotation center of the normal side rotation lever C. The normal line b of the contact surface between the linkage limit part 301a0101' in the standby side linkage slot 301a01' on the mounting bushing 301 and the standby side rotation linkage shaft C1' points to the rotation center of the standby side rotation lever C'. In this embodiment, at this time, the standby side flip limit linkage shaft A101' is located at the upper top of the standby side arc-shaped long slot 103', and the normal side flip limit linkage shaft A101 is located at the lower top of the normal side arc-shaped long slot 103' to achieve limitation.

[0064] When the standby power supply is in the closed state: the standby side rotary lever C' is at its maximum counterclockwise rotation position under the action of the main spring D', and its indicator linkage part C2' is in contact with the indicator touch part E101' of indicator E1', overcoming the spring force of the indicator return spring E2', so that indicator E1' is at its maximum counterclockwise rotation position, indicating the closed state; at the same time, the normal side rotary lever C is at its maximum counterclockwise rotation position under the action of the main spring D, and its indicator linkage part C2 is not in contact with the indicator touch part E101 of indicator E1. Under the action of the spring force of the indicator return spring E2, indicator E1 is at its maximum counterclockwise rotation position, and its indicator linkage part E102 is limited by the flip limit linkage shaft A101, so that indicator E1 indicates the open state, as shown in the attached figure. Figure 20 As shown.

[0065] When the power supply on the normal operating side is in the closed state: the rotary lever C on the normal operating side is at its maximum clockwise rotation position under the action of the main spring D. Its indicator linkage part C2 is in contact with the indicator touch part E101 of the indicator E1, and overcomes the spring force of the indicator return spring E2, so that the indicator E1 is at its maximum clockwise rotation position, and the indicator E1 shows the closed state; at the same time, the rotary lever C' on the standby side is at its maximum clockwise rotation position under the action of the main spring D'. Its indicator linkage part C2' is not in contact with the indicator touch part E101 of the indicator E1. Under the action of the spring force of the indicator return spring E2', the indicator E1' is at its maximum clockwise rotation position. Its indicator linkage part E102' is limited by the flip limit linkage shaft A101', so that the indicator E1' shows the open state, as shown in the attached figure. Figure 21 As shown.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An operating mechanism for a switching device, characterized in that: It includes a bracket, with one side being the operating side and the other side being the standby side. A sliding plate is installed within the bracket and can slide back and forth between the operating side and the standby side. The operating side and the standby side of the sliding plate are linked to corresponding electromagnets by corresponding flip-pull rod mechanisms. One end of the output system is rotatably mounted on the bracket, and the other end is located outside the bracket. The operating side and the standby side within the bracket are also provided with corresponding rotating levers and corresponding main springs. The output system is linked with the corresponding rotating levers and corresponding main springs on the operating side and the standby side within the bracket. Under the combined action of the corresponding electromagnets, flip-pull rod mechanisms, rotating levers, and corresponding main springs on the operating side and the standby side within the bracket, the output system can rotate back and forth to realize the corresponding opening and closing operations between the operating side power supply and the standby side power supply. When the output system is in the closed position on the operating side and the standby side, it can self-lock under the combined action of the corresponding rotating levers, main springs, and flip-pull rod mechanisms on the operating side and the standby side. The bracket is equipped with a lever, which is rotatably mounted on the bracket. The lever is provided with a sliding plate linkage part, which enables the lever to drive the sliding plate to slide back and forth between the commonly used side and the spare side on the bracket.

2. An operating mechanism for a switching device as defined in claim 1, characterized in that The lever is provided with an output system through hole for the output system to pass through.

3. An operating mechanism for a switching device as defined in claim 1, characterized in that: The support is equipped with corresponding indicating mechanisms on the commonly used side and the standby side. The corresponding rotating lever is linked with the corresponding indicating mechanism to indicate the opening and closing status of the commonly used power supply and the standby power supply.

4. An operating mechanism for a switching device as defined in claim 1, characterized in that: The bracket is provided with a mounting through hole for mounting the output system. The bracket has corresponding arc-shaped elongated slots on the commonly used side and the spare side on both sides of the mounting through hole. A corresponding mounting shaft is provided on the inner side of the bracket between the mounting through hole and the corresponding arc-shaped elongated slot. An indicator return spring mounting shaft is provided on the inner side of the bracket below the mounting through hole. The commonly used side and the spare side on the front and rear surfaces of the bracket are provided with corresponding electromagnet mounting parts below the corresponding arc-shaped elongated slots. A toggle lever mounting shaft is provided on the front surface of the bracket below the mounting through hole at a corresponding position.

5. An operating mechanism for a switching device as defined in claim 1, characterized in that: The corresponding flip lever mechanism on the commonly used side and the spare side includes a corresponding flip lever, which is rotatably mounted on a corresponding mounting shaft. The corresponding flip lever is pivotally connected to the corresponding side of the sliding plate via a corresponding sliding plate shaft. The corresponding flip lever is provided with a corresponding flip limit linkage shaft, the two ends of which are located in the corresponding arc-shaped long slot. The corresponding flip lever is also provided with a pull rod linkage part. The corresponding pull rod on the commonly used side and the spare side is provided with a pull rod linkage hole corresponding to the pull rod linkage part on the corresponding flip lever. The corresponding pull rod is linked to the pull rod linkage part on the corresponding flip lever via the pull rod linkage hole. The corresponding pull rod is also provided with an electromagnet linkage part, which is linked to the iron core of the corresponding electromagnet via the electromagnet linkage part.

6. An operating mechanism for a switching device as defined in claim 1, characterized in that: The commonly used and spare sides of the bracket are rotatably mounted on corresponding mounting shafts. The corresponding rotating levers are linked to the output system via corresponding rotating linkage shafts. The corresponding rotating levers are also provided with indicator linkage parts for linking corresponding indicator mechanisms.

7. The operating mechanism of a switching device as described in claim 1, characterized in that: The main springs on the commonly used side and the spare side of the bracket are mounted on the corresponding flip-limit linkage shaft at one end and on the corresponding rotation linkage shaft at the other end.

8. An operating mechanism for a switching device as defined in claim 1, characterized in that: The output system includes a mounting sleeve that is rotatable within a mounting through hole. An output shaft is mounted within the mounting sleeve. During rotation within the mounting through hole, the mounting sleeve drives the output shaft to rotate. The mounting sleeve has corresponding linkage cantilever arms on its commonly used and spare sides. Each linkage cantilever arm has a linkage slot, and a linkage limit part is provided within the linkage slot. A corresponding rotating linkage shaft is located within the corresponding linkage slot, causing the corresponding rotating levers on the commonly used and spare sides of the bracket to rotate, thereby linkage the mounting sleeve and ultimately the output shaft.

9. An operating mechanism for a switching device as defined in claim 3, characterized in that: The corresponding indicating mechanisms on the commonly used side and the spare side of the bracket include indicating elements. The indicating elements are rotatably mounted on corresponding mounting shafts. The indicating elements are provided with indicating triggering parts and indicating linkage parts. The indicating triggering parts are linked to the indicating linkage parts provided on the rotating lever. The indicating linkage parts of the corresponding indicating mechanisms are linked to the corresponding flip-limit linkage shafts. The indicating elements are also provided with reset spring connecting parts. One end of the reset spring of the corresponding indicating elements on the commonly used side and the spare side of the bracket is connected to the corresponding reset spring connecting parts, and the other end is connected to the corresponding indicating reset spring mounting shaft. The indicating elements are provided with closing and opening indicating areas for indicating the closing and opening status during the rotation of the indicating elements.

10. An operating mechanism for a switching device as defined in claim 1 or 4, characterized in that: The bracket includes a pair of side plates, which are connected and fixed together by a number of bracket connecting shafts.

11. An operating mechanism for a switching device as defined in claim 1, characterized in that: When the power supply on the normal side is in the closed position, the line connecting the rotation center of the flip limit linkage shaft on the standby side and the rotation center of the rotation linkage shaft on the standby side is located above the rotation center of the rotation lever on the standby side, and the line connecting the rotation center of the flip limit linkage shaft on the normal side and the rotation center of the rotation linkage shaft on the normal side is located below the rotation center of the rotation lever on the normal side. The normal line of the contact surface between the linkage limit part in the linkage slot hole on the standby side and the rotation linkage shaft on the standby side points to the rotation center of the rotation lever on the standby side. When the backup power supply is in the closed position, the line connecting the rotation center of the flip limit linkage shaft and the rotation linkage shaft on the normal side is located above the rotation center of the rotating lever on the normal side, and the line connecting the rotation center of the flip limit linkage shaft and the rotation linkage shaft on the backup side is located below the rotation center of the rotating lever on the backup side. The normal line of the contact surface between the linkage limit part in the linkage slot hole on the normal side of the mounting bushing and the rotating linkage shaft on the normal side points to the rotation center of the rotating lever on the normal side.

12. The operating mechanism of a switching device as described in claim 11, characterized in that: When the corresponding flip levers on the commonly used side and the spare side rotate to the point where the line connecting the rotation center of the corresponding flip limit linkage shaft and the corresponding rotation linkage shaft passes through the rotation center of the corresponding rotating lever, the corresponding main springs on the commonly used side and the spare side will not cause the corresponding rotating levers to generate rotational torque, thus placing the corresponding rotating levers in a dead position.

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