CN109524254B

CN109524254B - Switching device

Info

Publication number: CN109524254B
Application number: CN201910023214.3A
Authority: CN
Inventors: 顾怡文; 沈惠新; 丁晓辉
Original assignee: Changshu Switchgear Manufacturing Co Ltd
Current assignee: Changshu Switchgear Manufacturing Co Ltd
Priority date: 2019-01-10
Filing date: 2019-01-10
Publication date: 2024-03-26
Anticipated expiration: 2039-01-10
Also published as: CN109524254A

Abstract

The utility model provides a switching device, includes the shell, sets up operating device and contact mechanism in the shell, and the shell includes housing, button, and operating device includes energy memory and trigger device, and after manual or electric mode lower drive energy memory accomplished the energy storage action and reached the switch-on ready position, push button drive trigger device action for the energy memory action drives contact mechanism and closes a floodgate, characteristics: the switch device also comprises a button interlocking device, the button interlocking device comprises a sliding plate which is arranged on the housing in a sliding way and slides between a first position corresponding to the electric mode and a second position corresponding to the manual mode, the sliding plate stops the action of the button on the trigger device when the sliding plate is positioned at the first position, and the sliding plate releases the stop of the button when the sliding plate is positioned at the second position; meanwhile, when the energy storage device is located at the ready-to-close position, the stop of the button is released, and when the energy storage device leaves the ready-to-close position, the action of the button to the trigger device is stopped. The switching device realizes the correct and safe operation of the user.

Description

Switching device

Technical Field

The invention belongs to the technical field of piezoelectric devices, and particularly relates to a switching device.

Background

The existing switching device is generally provided with a manual operation mode and an electric operation mode, an operator can determine which mode of operation is performed on the switch through an indicator on a panel of the switching device, and when the indicator displays a manual mode, the operator stretches into an operation hole through an operation rod, a handle and other tools equipped in the switching device to operate the switch; when the indicator displays the electric mode, an operator cannot manually operate the switching device through the operation hole. In addition, the existing switching devices are also provided with a "locking" mode in which the switching device is in a switching-off position, for example, the automatic changeover double-power switching device is in a double-switching-off position (switching off the normal power supply while switching off the standby power supply), at which time the operator can perform maintenance or the like on the switching device.

The existing switch device comprises a button arranged on a shell, an operating mechanism arranged in the shell and a contact mechanism driven by the operating mechanism, wherein the operating mechanism comprises an energy storage device and a trigger device, the button drives the trigger device to act after the energy storage device is driven to finish energy storage action to reach a closing ready position in a manual or electric mode, the trigger device drives the energy storage device to act, and the energy storage device drives the contact mechanism to close. Between the three modes of the switch, effective switching and correct operation are needed, so that the safety and continuous effective work of the electric equipment can be ensured, and meanwhile, misoperation is not allowed in the operation process of the switch.

Disclosure of Invention

The object of the invention is to provide a switching device which, by means of a set of push button interlocks, enables a push button on the side of the spring means which is only allowed to be pressed in manual mode and which has reached a ready position for closing, thus ensuring a correct, safe operation by the user.

The switch device comprises a shell, an operating mechanism arranged in the shell and a contact mechanism driven by the operating mechanism, wherein the shell comprises a housing and a button, the operating mechanism comprises an energy storage device and a trigger device, after the energy storage device is driven to finish energy storage action in a manual or electric mode to reach a switch-on ready position, the trigger device is driven to act by pressing the button so that the energy storage device acts to drive the contact mechanism to switch on, the switch device also comprises a button interlocking device, the button interlocking device comprises a sliding plate which is arranged on the housing in a sliding manner and slides between a first position corresponding to the electric mode and a second position corresponding to the manual mode, the sliding plate stops the action of the button on the trigger device when the sliding plate is positioned in the first position, and the sliding plate releases the stop of the button when the sliding plate is positioned in the second position; the energy storage device releases the stop of the button when the energy storage device is positioned at the ready position of closing, and stops the action of the button on the trigger device when the energy storage device leaves the ready position of closing.

In a specific embodiment of the invention, the button acts in a direction perpendicular to the housing, the sliding plate is continuously provided with a stop surface in the sliding direction, and when the sliding plate is positioned at the first position, the stop surface is positioned on the movement track of the button, so that the action of the button on the trigger device is stopped; when the slide plate is positioned at the second position, the stop surface is positioned outside the movement track of the button, and the button is allowed to act on the trigger device.

In another specific embodiment of the present invention, the button extends toward the direction of the sliding plate and is provided with a button limiting boss, and the button limiting boss is matched with the stop surface.

In another specific embodiment of the invention, the operating mechanism comprises two side plates which are identical in structure and are installed face to face, the energy storage device is installed between the two side plates, the energy storage device comprises a closing and opening lever and an upper connecting rod which are pivoted on the side plates of the mechanism, a lower connecting rod hinged with the upper connecting rod, and an energy storage spring, one end of which is hung on the closing and opening lever, and the other end of which is hung on the hinge shafts of the upper connecting rod and the lower connecting rod; when the energy storage device is positioned at the ready position, the on-off lever rotates to the outside of the movement track of the button, the button is allowed to act on the trigger device, and when the energy storage device leaves the ready position, the on-off lever rotates to the movement track of the button, and the action of the button on the trigger device is stopped.

In still another specific embodiment of the present invention, a button cavity mounting seat for sinking the button is provided on the cover, a surface cover for sealing the slide plate and the button cavity mounting seat is fixed on the cover, upper limit boss surfaces are provided on both sides of the button, a button return spring is provided between the button and the bottom of the button cavity mounting seat, and under the action of the button return spring, the upper limit boss surface keeps the tendency of leaning against the surface cover, and the upper surface of the button is exposed out of the surface cover.

In a further specific embodiment of the present invention, the button bottom extends toward the trigger device and a button driving rod is sleeved with the button return spring.

In a further specific embodiment of the present invention, the opening and closing lever is provided with a top plate opening at a position corresponding to the button cavity mounting seat, when the opening and closing lever moves to a position corresponding to the opening and closing lever, the bottom of the button cavity is located in the top plate opening, and the edge of the top plate opening is located on the movement track of the button, so that the action of the button on the trigger device is stopped.

By adopting the structure, the switch device provided by the invention has one of the beneficial effects that the button can be pressed only in the manual mode through the interlocking between the set of buttons and the sliding plate, so that the disorder of the automatic mode and the manual mode is prevented, the misoperation is prevented, the correct and safe operation of a user is ensured, and the safety of electric equipment and operators is ensured; and secondly, the button interlock on the switch ensures that only the button on the side of the spring mechanism which has reached the ready-to-close position can be pressed, namely, the button can be pressed only after the ready-to-close operation, thereby ensuring the correct operation of the switch button.

Drawings

Fig. 1 is a schematic view of the switch housing and operating mechanism of the present invention.

Fig. 2 is an exploded view of the housing and operating mechanism of the present invention.

FIG. 3a is an exploded view of the operating mechanism, output shaft association and signal switch of the present invention.

FIG. 3b is a schematic view of the dual position of the actuator according to the present invention.

Fig. 4 is an installation view of the locker of the operating mechanism according to the invention.

Fig. 5 is an exploded view of the operating mechanism according to the present invention.

Fig. 6a is an exploded view of a driving electromagnet according to the present invention.

Fig. 6b is a view of a driving electromagnet fixing bracket according to the present invention.

Fig. 6c is a diagram of an electromagnet connecting rod for connecting a driving electromagnet and a switching-on and switching-off lever according to the present invention.

Fig. 6d is a lever diagram of the opening and closing of the present invention.

Fig. 6e is a diagram of an upper link according to the present invention.

Fig. 6f is a lower link diagram according to the present invention.

Fig. 6g is a diagram of an output shaft according to the present invention.

Fig. 6h is a diagram of a manual lever according to the present invention.

Fig. 6i is a first link diagram of the links connecting two on-off levers according to the present invention.

Fig. 7a is an exploded view of the locker of the present invention.

Fig. 7b is an exploded view of an electromagnet of the latch according to the present invention.

Fig. 7c is a diagram of a fixing frame of the locking device according to the present invention.

Fig. 7d is a snap-on view of the locking device according to the present invention.

Fig. 7e is a latch diagram of the latch device according to the present invention.

Fig. 8a is a schematic diagram of a first spring mechanism in a switch-on ready position (double-split position) in a three-position switch according to the present invention.

Fig. 8b is a schematic diagram of a closing position (a first power-on position) of the first spring mechanism in the three-position switch according to the present invention.

Fig. 8c is a schematic diagram of the switching-off over dead point of the first spring mechanism in the switching-on process of the first spring mechanism (the first power-on position) to the switching-on ready position of the second spring mechanism (the double-off position) in the three-position switch according to the present invention.

Fig. 8d is a schematic diagram of a second spring mechanism in a switch-on ready position (double-split position) in the three-position switch according to the present invention.

Fig. 8e is a schematic diagram of a second spring mechanism closing (second power position) in the three-position switch according to the present invention.

Fig. 9a is a schematic diagram of a closing position (a second power-on position) of the second spring mechanism in the two-position switch according to the present invention.

Fig. 9b is a schematic diagram of a closing position (a first power-on position) of the first spring mechanism in the two-position switch according to the present invention.

Fig. 10a is a schematic view of the housing of the switch of the present invention in an automatic mode.

Fig. 10b is a schematic view of the switch of the present invention in the isolation locking mode, with the housing in the padlock state.

Fig. 10c is a schematic view of the assembly of the housing according to the present invention.

Fig. 11a is a perspective view of a housing according to the present invention.

FIG. 11b is a schematic view of the rear side of the housing after the slide, button, and gear lever of the present invention are mounted on the housing.

Fig. 12 is a schematic view of a face cover according to the present invention.

Fig. 13 is a schematic view of a closing button according to the present invention.

Fig. 14 is a schematic view of a skateboard according to the present invention.

Fig. 15a is a schematic view of a gear lever according to the present invention.

Fig. 15b is another schematic view of a gear lever according to the present invention.

Fig. 16 is a schematic view of a padlock plate according to the present invention.

Fig. 17 is a schematic view of a manual automatic signal switch driving lever according to the present invention.

FIG. 18 is a schematic cam diagram of an output shaft related member according to the present invention.

Fig. 19 is a schematic view of an intermediate position interlock lever of an output shaft coupling according to the present invention.

Fig. 20a is a schematic diagram of the cooperation of the gear shift lever, the slide plate, the closing button and the padlock plate when the switch of the invention is in the automatic mode.

FIG. 20b is a side view of the position of the gear lever when the switch of the present invention is in the automatic mode.

Fig. 21a is a schematic diagram of the cooperation of the gear shift lever, the slide plate, the closing button and the padlock plate when the switch of the present invention is in the manual mode.

FIG. 21b is a side view of the position of the gear lever when the switch of the present invention is in manual mode.

Fig. 22a is a schematic diagram of the cooperation of the gear shift lever, the slide plate, the closing button and the padlock plate when the switch of the present invention is in the isolation mode.

FIG. 22b is a side view of the position of the gear lever when the switch of the present invention is in the isolation mode.

Figure 22c is a schematic view of a padlock after rotation of the padlock plate when the switch according to the present invention is in the isolated mode.

Fig. 22d is a schematic view of the other side of the switch of fig. 22c with the cover removed.

In the figure: 1. a housing; 2. an operating mechanism; 3. a signal switch; 4. a base;

11. housing, 1101, slide boss top, 1102, slide guide post, 1103, shift guide bar, 1104, shift guide slot, 1105, return spring eye, 1106, padlock plate mounting hole, 1107, padlock plate mounting pin hole, 1108, slide roller, 1109, button mount, 11091, button hole, 11092, button limit slot, 1110, return spring mounting hole, 1113, gear shift first defining boss, 1114, padlock plate mounting surface, 1115, manual signal switch drive bar mounting hole, 1116, gear shift second defining boss, 1117, first switch ready indication window, 1117' second switch ready indication window, 1118, manual operation hole on housing, 1119, intermediate position interlock lever mounting hole, 1120, limit boss, 1121, limit bar, 1122, signal terminal hole, 11221, signal terminal interface, 1123, handling opening.

12. The face cover, 121, a padlock plate mounting hole, 122, a guide column limiting hole, 123, a gear shift lever limiting rib, 124, a button upper limiting surface, 125, a button cavity, 126, a first closing ready indication window, 126' a second closing ready indication window, 127, a manual operation hole, 128, a slide plate limiting rib, 129 and a shift lever sliding hole;

13. the first closing button, the 13' second closing button, the 131 button return spring, the 132 button driving rod, the 133 lower limit boss, the 134 button limit boss, the 135 upper limit boss;

14. slide plate, 141, slide guide slot, 142, mating face, 1420, inflection point, 1421, first drive end, 1422, second drive end, 1423, third drive end, 1424, fourth drive end, 143, stop face, 144, return spring, 145, hanging hole, 146, unlocking notch, 147, first indicator window covering, 147' second indicator window covering, 148, manual operation Kong Zhe covering, 149, return spring mounting hole.

15. Gear shift lever 1501, shift lever guide slot 1502, drive post 1503, support boss 1504, push rod 1505, padlock plate limit surface 1506, limit notch 1507, first drive boss surface 1508, second drive boss surface 1509, gear slot 15091, first gear slot 15092, second gear surface 15093, third gear slot 1510, lower limit surface 1511, drive post roller.

16. Hanging lock plate, 1601, installation hinge, 1602, padlock return spring, 1603, return spring hanging, 1604, hanging lock hole, 1605, hanging lock end 1606, mounting surface, 1607, padlock limit surface, 1608, padlock plate locking boss, 1609, turning end, 1610, pin shaft;

17. the manual and automatic signal switch driving rod 171, the reset spring 173, the driving surface 175 and the reset spring hanging hole;

21. the device comprises a frame, a side plate, a central hole of an output shaft, a top connecting rod pin shaft, a bottom connecting rod pin shaft, a top connecting rod upper limit boss, a top driving electromagnet installation boss, a 21151 bracket installation notch, a 21152, a magnetic yoke positioning notch, a 2116, a limit chute, a 2117, a bottom connecting rod limit boss, a 2118, a positioning shaft, a 2119, a lock catch positioning boss surface, a 212, a support shaft, a 2120, a bottom connecting rod limit shaft, a 2121, a bottom connecting rod limit shaft, a 2122.

22. First spring mechanism, 22' second spring mechanism, 221, upper link, 2211, upper link side plate, 22111, upper link slot, 22112, upper link hinge hole, 22113, slide stop face, 22114, upper link stop lock face, 22115, upper stop strike face, 22116, lower stop strike face, 2212, upper link cross plate, 22121, upper link opening, 2213, baffle, 222, lower link, 2221, lower link side plate, 22211, lower link hinge hole, 22212, output shaft hinge hole, 2222, lower link cross plate, 22221, lower link opening, 223, trip lever, 2231, lever side plate, 22311, lever slot, 22312, link pin, 22313, electromagnet link pin, 2232, lever cross plate, 22321, elongated slot, 22322, elongated opening, 2233, top plate opening, 22331, 224, energy storage spring, 225, pin shaft 226, energy storage spring fixed shaft.

23. Output shaft, 231, revolving body, 232, output arm, 2321, chute, 233, square shaft, 234, mounting pillow block;

24. the connecting rods 241, the first connecting rods 2411, the first transverse plates 24111, the closing and opening lever pin holes 2412, the second transverse plates 24121, the manual operation holes 24122, the driving plates 241221, the first driving bosses 242, the second connecting rods 2421, the closing and opening lever pin holes 2422 and the second driving bosses;

25. first drive electromagnet, 25' second drive electromagnet, 251, moving core, 2511, limit boss, 2512, pin bore, 252, stationary core, 2521, step, 253, coil, 254, yoke, 2541, yoke shroud, 25411, yoke shroud pilot bore, 25412, locating boss, 2542, yoke cover plate, 255, return spring, 256, coil, 257, moving core stationary bracket, 2571, bracket pilot bore, 25711, flange, 2572, lower link limit boss, 2573, mounting boss, 2574, stationary boss, 258, electromagnet link, 2581, elongated slot, 2582, hinge bore, 259, elongated pin shaft.

27. Manual lever 271, hinge hole 272, axial hole;

28. the locking device comprises a locking device body 281, a fixing frame body 2811, a fixing frame side plate 28111, a wiring groove 28112, a fixing convex table surface, 281121, a fixing plate surface, 28113, lugs, 281131, a locking installation pin shaft hole, 28114, a locking installation pin shaft hole, 28115, an installation positioning surface, 2812, a fixing frame transverse plate, 28121, a fixing frame through hole, 282, a first locking piece, a second locking piece and a locking device. 282' second catch piece, 2821, hasp, 28211, lock shaft hole, 28212, trip lever, 28213, hasp lever, 282130, electric trip lever, 282131, notch 28214, limit boss, 282141, central hole, 282142, lock catch limit surface, 28215, reset spring mounting groove, 2822, lock catch, 28221, limit rod 282211, catch limiting face, 2822111, limiting end face, 282212, opening 28222, catch lever, 282221, catch face, 282222, limiting end face, 28223, mount hinge hole, 2823, catch return spring, 2824, catch return spring, 284, trigger electromagnet, 2841, static core, 28411, stepped hole, 2842, moving core, 28421, stepped hole, 2843, coil, 28431, coil bobbin, 284311, annular boss, 2844, yoke, 28441, yoke cover, 28442, yoke cover, 284421, coil boss mounting hole, 2845, return spring, 2846, push rod, 28461, disk drive boss, 28462, long screw, 285, pin, 286.

29. The device comprises an output shaft association piece, 291, a cam, 2911, a main shaft hole, 2912, a cam notch, 292, a middle position interlocking rod, 2921, a spring hanging rod, 2922, a limit boss, 2923, an output shaft guide hole, 2924, a locking device fixing shaft guide hole and 293, and a return spring;

31. manual and automatic signal micro-switch.

Detailed Description

The applicant will now make a detailed description with reference to the accompanying drawings by way of example, but the description of the embodiments is not intended to limit the technical scope of the invention, and any equivalent transformation made in accordance with the inventive concept, merely in form and not in nature, should be regarded as being within the technical scope of the invention.

In the following description, all concepts related to the directions or azimuths of the up, down, left, right, front and rear are based on the positions shown in fig. 2, and thus should not be construed as being particularly limited to the technical solutions provided by the present invention.

The switch can be a circuit breaker or a double-power automatic transfer switch, and when the switch is the circuit breaker, the button, the spring mechanism in the energy storage device, the driving electromagnet and the locking piece of the triggering device are all one set, and when the switch is the double-power automatic transfer switch, the button, the spring mechanism in the energy storage device, the driving electromagnet and the locking piece of the triggering device are all two sets of components with the same structure, and the three-position double-power automatic transfer switch is taken as an example.

As shown in fig. 1 and 2, the three-position automatic transfer switch according to the present invention includes a housing 1, an operating mechanism 2, a signal switch 3, a base 4, and a contact mechanism not shown in the drawings. The three-position dual power transfer switch has three positions: the first power supply switching-on position, the double-split position and the second power supply switching-on position. The contact mechanism can rotate among a first contact position, a second contact position and a third contact position, and when the contact mechanism is positioned at the first contact position, the automatic transfer switch is in a first power switch-on state and a second power switch-off state (namely, the first power switch-on state); when the contact mechanism is positioned at the second contact position, the automatic transfer switch is in a first power supply switching-off state and a second power supply switching-off state (double-switching-off positions); when the contact mechanism is located at the third position, the automatic transfer switch is in a second power switch-on state and a first power switch-off state (namely, the second power switch-on state). The operating mechanism can drive the contact mechanism to switch among a first power switching-on position, a double-split position and a second power switching-on position; the three-position double-power automatic transfer switch can be divided into a manual mode, an electric mode and an isolation mode, and when in the manual mode, a handle is inserted for manual operation; in the electric mode, the switch controller controls the switch to act; in the isolated mode, the three-position dual power transfer switch is in the dual position and the switch is not allowed to be operated manually or electrically for maintenance and overhaul. The signal switch 3 is used for feeding back the state of the automatic transfer switch, the state of the operating mechanism 2 and the manual and electric mode selection conditions.

As shown in fig. 3 to 5, the operating mechanism 2 of the three-position dual-power transfer switch according to the present invention includes a frame 21, an energy storage device, an output shaft 23, a manual lever 27, and a locking device 28, where the energy storage device includes a first spring mechanism 22, a first driving electromagnet 25, a second spring mechanism 22', a second driving electromagnet 25', and a connecting rod 24 connecting the first spring mechanism 22 and the second spring mechanism 22 '. The first spring mechanism 22 and the second spring mechanism 22' have the same structure and are positioned at the left side and the right side of the output shaft 23, the frame 21 is a pair of side plates 211, and the pair of side plates 211 are arranged at the front side and the rear side of the output shaft 23 and are respectively connected with the output shaft 23; the output shaft 23 is connected with the contact mechanism; the first driving electromagnet 25 is connected with the first spring mechanism 22, and the second driving electromagnet 25 'is connected with the second spring mechanism 22'; the latch mechanism 28 is located intermediate the first spring mechanism 22 and the second spring mechanism 22' and acts as a trigger, also referred to as a trigger, to trigger the energy storage device. A manual operation rod 27 is arranged on the connecting rod 24 and the frame 21, an axial hole 272 is formed in the middle of the manual operation rod 27, a user inserts a handle into the axial hole 272 from the outer side in a manual mode, and the connecting rod 24 is manually driven to act so as to drive the first spring mechanism 22 and the second spring mechanism 22' at the two sides to act for energy storage, and the ready-to-close position is reached; under the electric mode, the controller of the automatic transfer switch controls the driving electromagnet to be electrified, and the driving electromagnet drives the spring mechanism on the corresponding side to store energy to reach the closing ready position. When the switch-on ready position is reached, at this time, a user can control the trigger electromagnet in the locking device 28 to act by the controller in an automatic mode, and the driving spring mechanism releases energy to drive the contact mechanism at the corresponding side to complete the switch-on of the power supply; the manual mode can also be selected, a closing button corresponding to the ready spring mechanism is pressed, the spring mechanism is driven to release energy, and the contact mechanism at the corresponding side is driven to complete power supply closing.

As shown in fig. 5, the frame 21 includes two side plates 211 having the same structure and being installed face to face, and an output shaft center hole 2111 for installing the output shaft 23 is provided at the middle of the two side plates 211.

As shown in fig. 5 and 6g, the output shaft 23 preferably has a V-shaped structure, the output shaft 23 includes a revolving body 231 and two output arms 232 symmetrically disposed about a rotation center thereof, the revolving body 231 is located at a vertex of the V-shape, two V-shaped output arms 232 extend symmetrically in a radial direction of the revolving body 231, two V-shaped output arms 232 are provided with elongated slots 2321, and an intersection point of center lines of the two elongated slots 2321 preferably passes through the center of the revolving body 231. Square shafts 233 are arranged at two axial ends of the output shaft 23, one square shaft 233 at one end is used for being connected with the signal switch 3, the square shaft 233 at the other end is used for being connected with a contact mechanism, and a mounting shaft table 234 is arranged between the square shaft 233 and the revolving body 231. The two ends of the output shaft 23 are hinged in the central hole 2111 of the output shaft of the side plate 211 through the mounting pillow blocks 234.

As shown in fig. 5, the first spring mechanism 22 and the second spring mechanism 22' have the same structure and are symmetrically disposed at two sides of the output shaft 23, and each of the first spring mechanism and the second spring mechanism includes an upper link 221, a lower link 222, a closing and opening lever 223, and an energy storage spring 224.

As shown in fig. 5 and 6e, the upper link 221 is composed of two identical upper link side plates 2211 and an upper link cross plate 2212 which are installed face to face, the two upper link side plates 2211 are symmetrically arranged relative to the upper link cross plate 2212, an upper link notch 22111 is arranged at one end of the two upper link side plates 2211, an upper link hinge hole 22112 is arranged at the other end, a sliding limiting surface 22113 extends outwards along the circumferential direction at one end of the upper link hinge hole 22112, and an upper link limiting locking surface 22114 is arranged at the lower part of the sliding limiting surface 22113. The upper link 221 is further provided with an upper limit impact surface 22115 and a lower limit impact surface 22116, which are matched with the limit parts on the two side plates 211 of the frame 21, and are used for limiting the upper limit and the lower limit of the rotation of the upper link 221. The outer sides of the two upper link side plates 2211 of the upper link 221 are further overlapped with a baffle 2213 with the same shape and structure as the two upper link side plates 2211. The baffle 2213 is fixed on the upper link side plate 2211 by riveting or welding, for increasing the limit reliability of the upper link limit locking surface 22114 and the locking device 28. An upper connecting rod opening 22121 is arranged on the upper connecting rod cross plate 2212, and is used for avoiding the energy storage spring 224 during closing.

As shown in fig. 5 and 6f, the lower link 222 is composed of two lower link side plates 2221 and one lower link cross plate 2222 which are identical in structure and face-to-face, the two lower link side plates 2221 are symmetrically opposite to the lower link cross plate 2222, and a lower link hinge hole 22211 and an output shaft hinge hole 22212 are respectively provided at both ends of the two lower link side plates 2221. The lower link cross plate 2222 is provided with a lower link opening 22221 for avoiding the output shaft 23 during the closing process.

As shown in fig. 5, 6e and 6f, upper link pins 2112 for pivotally connecting the two upper links 221 are symmetrically provided inside the pair of side plates 211 of the frame 21, and the two upper link pins 2112 are located at both sides of the output shaft center hole 2111. The upper link slot 22111 is pivotally connected to the upper link pin 2112, and the upper link hinge hole 22112 and the lower link hinge hole 22211 are respectively provided with a link pin 225 for realizing the hinge of the upper and lower links 221 and 222, and the output shaft hinge hole 22212 of the lower link 222 and the elongated waist-shaped chute 2321 of the output shaft 23 are respectively provided with an output shaft pin 226, so as to realize the connection between the lower link 222 and the output shaft 23.

As shown in fig. 5 and 6d, the opening and closing lever 223 is composed of two lever side plates 2231, a lever transverse plate 2232 and a top plate 2233, which are identical in structure and are installed face to face, and the top plate 2233 is formed by extending and bending the lever transverse plate 2232 and is connected with the two lever side plates 2231 by riveting or welding. The lever side plates 2231 are provided with lever slots 22311, the lever side plates 2231 are provided with a link pin 22312 connected with the link 24 at an end far from the lever slots 22311 and close to the top plate 2233, and an electromagnet link pin 22313 connected with the electromagnet at an end far from the lever slots 22311 and the top plate 2233. The lever transverse plate 2232 is provided with a strip-shaped groove 22321 and a strip-shaped opening 22322 penetrating the strip-shaped groove 22321, an energy storage spring fixing shaft 227 is arranged in the strip-shaped groove 22321, and the top plate 2233 is provided with a top plate opening 22331.

As shown in fig. 5 and 6d, on the outer side surfaces of the two side plates 211, on both sides of the output shaft center hole 2111, there are symmetrically provided on-off lever mounting pins 2113 for pivotally engaging the off lever 223, respectively. The opening and closing lever 223 is pivoted on the opening and closing lever pin shaft 2113 through lever slots 22311 on two side plates, then one end of the energy storage spring 224 passes through a strip-shaped opening 22322 on the lever transverse plate 2232 and then is hung on an energy storage spring fixing shaft 227 mounted in a strip-shaped groove 22321, and the other end of the energy storage spring 224 is hung on a connecting rod pin shaft 225 of the upper connecting rod 221 and the lower connecting rod 222, so that the energy storage spring 224 is conveniently mounted, the opening and closing lever 223 is turned inwards before being mounted, two hanging points of the energy storage spring 224 are close to each other as much as possible, and the energy storage spring 224 can be mounted under free length, so that a top plate 2233 on the opening and closing lever 223 is not easy to be too long and cannot be turned after being abutted against the frame 21.

As shown in fig. 5 and 6i, the connecting rod is divided into a first connecting rod 241 and a second connecting rod 242, the first connecting rod 241 is composed of a first transverse plate 2411 and a second transverse plate 2412 which are perpendicular to each other, the first transverse plate 2411 and the second transverse plate 2412 are both elongated, and two ends of the first transverse plate 2411 are provided with a closing and opening lever pin shaft hole 24111 for connecting the lever side plates 2231 of the two closing and opening levers 223. The middle part of the second transverse plate 2412 is provided with a manual operation hole 24121 into which the manual operation rod 27 can be inserted, two end parts of the second transverse plate 2412 form a driving plate 24122, and one side of the end part of the driving plate 24122 is provided with a first driving boss 241221 for driving a switch-on ready position indicator (not shown in the figure) of the change-over switch. The second connecting rod 242 is a long bar-shaped transverse plate, two ends of the transverse plate are symmetrically provided with a closing and opening lever pin shaft hole 2421, and one end of the transverse plate is provided with a second driving boss 2422 for driving the signal switch 3.

As shown in fig. 5 and 6h, the manual operation lever 27 is an elongated square bar or a round bar. A hinge hole 271 is provided in the radial direction of the manual lever 27, and an axial hole 272 is provided in the axial direction of the manual lever 27.

As shown in fig. 3 to 5 and fig. 6d and 6i, the opening and closing lever pin shaft holes 24111 at two ends of the first transverse plate 2411 of the first link 241 are respectively penetrated through the link pin shaft 22312 at one side of the opening and closing lever 223 of the first spring mechanism 22 and the second spring mechanism 22', the opening and closing lever pin shaft holes 2421 at two ends of the second link 242 are respectively penetrated through the link pin shaft 22312 at the other side of the opening and closing lever 223 of the first spring mechanism 22 and the second spring mechanism 22', and the opening and closing lever 223 of the first spring mechanism 22 and the second spring mechanism 22' are connected through the first link 241 and the second link 242, and the rotation centers of the two opening and closing levers and the hinge points of the two levers form a parallelogram structure. One end of the manual lever 27 with the axial hole 272 is inserted into the manual operation hole 24121 of the first link 241, and the hinge hole 271 of the manual lever 27 is passed through the positioning shaft 2118 on the upper side of the output shaft center hole 2111 of the side plate 211.

As shown in fig. 5, support shafts 212 are symmetrically arranged between two side plates 211, so that a hollow structure is formed between the two side plates, and the support shaft 212 positioned on the upper side is an upper connecting rod lower limit shaft 2121 and is used for being matched with a lower limit impact surface 22116 of an upper connecting rod 221; the support shaft 212 on the lower side is a lower link limit shaft 2122 for mating with the lower link 222. An upper link upper limit boss 2114 is provided at an upper side edge of the side plate 211 of the frame 21 to protrude inward for being engaged with the upper limit striking surface 22115 of the upper link 221. Of course, the upper limiting boss 2114 of the upper link is not limited to the protruding structure of the side plate 211, and may be realized by riveting the shaft on the side plate 211, and in the same way, the lower limiting shaft 2121 of the upper link may also be formed by protruding the side plate 211, that is, all the limiting shafts for limiting may be formed by protruding the side plate, and all the limiting bosses of the present invention may be realized by riveting the shaft.

As shown in fig. 5 and fig. 6a, 6b, 6c and 6d, the first driving electromagnet 25 and the second driving electromagnet 25' are solenoid type electromagnets, which have the same structure and are symmetrically disposed on two sides of the output shaft 23, and each of the first driving electromagnet and the second driving electromagnet comprises a movable iron core 251, a stationary iron core 252, a coil 253, a magnetic yoke 254, a return spring 255, a solenoid 256, a movable iron core fixing bracket 257, a pair of electromagnet connecting rods 258 and a long pin 259, wherein the magnetic yoke 254 comprises a magnetic yoke cover 2541 and a magnetic yoke cover 2542, and the magnetic yoke cover 2541 and the magnetic yoke cover 2542 are riveted together through riveting bosses and riveting holes. The top of the yoke cover 2541 is provided with a yoke cover guiding hole 25411 for guiding the movable iron core, and two sides of the yoke 254 are provided with positioning bosses 25412 for being matched with the side plates 211 of the frame 21. The magnetic yoke 254 is internally provided with a movable iron core 251, a static iron core 252, a coil 253, a return spring 254 and a solenoid 256, the movable iron core 251 is a step shaft, a section of limiting boss 2511 is arranged in the middle of the step shaft, two ends of the limiting boss 2511 are respectively a shaft section with a larger shaft diameter and a shaft section with a smaller shaft diameter, one end of the shaft section with the smaller shaft diameter is provided with a pin shaft hole 2512 along the radial direction, and the shaft section with the larger shaft diameter is arranged on the static iron core 252. The stationary core 252 is mounted on the yoke cover plate 2542, and a step 2521 is machined on the stationary core. One end of the return spring 255 abuts against the limit boss 2511 of the movable iron core 251, and the other end abuts against the step 2521 of the stationary iron core 252. The solenoid 256 is sleeved outside the movable iron core 251 and the static iron core 252, the solenoid material is non-magnetic conductive material, and a coil 253 is arranged outside the solenoid 256. When the coil 253 is energized, the stationary core 252 attracts the movable core 251 to move in a direction toward the stationary core 252, and when the coil 253 is deenergized, the movable core 251 moves in a direction away from the stationary core 252 due to the spring force of the return spring 255. Since the movable core 251 of the driving electromagnet on one side of the present invention is attracted to the stationary core 252 and the movable core 251 of the driving electromagnet on the other side is separated from the stationary core 252 by the link 24 after the driving electromagnet is energized, the present invention does not need to provide the return spring 255. The movable iron core fixing support 257 is fixedly arranged above the magnet yoke cover 2541, a support guide hole 2571 for guiding the movable iron core 251 is formed in the middle of the movable iron core fixing support 257, a flange 25711 is arranged on the circumferential edge of the support guide hole 2571, the flange 25711 extends downwards and stretches into the magnet yoke cover guide hole 25411, and therefore the movable iron core 251 and the magnet yoke 254 are isolated from each other. A lower link stopper boss 2572 is provided at one end of the movable core fixing bracket 257. The movable iron core fixing bracket 257 is provided with a mounting boss 2573 on the other side opposite to the side provided with the lower connecting rod limiting boss 2572, and for the three-phase dual-power transfer switch, the connecting terminal of the N-phase wire taking wire of the controller is inserted with the mounting boss 2573. The two sides of the movable iron core fixing support 257 are provided with fixing bosses 2574 for being matched and installed with the side plates 211 of the stand 21. The first driving electromagnet 25 and the second driving electromagnet 25 'are respectively fixed on the driving electromagnet mounting bosses 2115 at two ends of the side plate 211, the positioning boss 25412 on the magnetic yoke 254 is inserted into the magnetic yoke positioning notch 21152 of the driving electromagnet mounting boss 2115, the fixing boss 2574 on the movable iron core mounting bracket 257 abuts against the bracket mounting notch 21151 of the driving electromagnet mounting boss 2115, and the fixing holes on the driving electromagnet mounting boss 2115 are penetrated through by screws to be screwed into four screw holes distributed around the magnetic yoke cover guiding hole 25411, so that the first driving electromagnet 25 and the second driving electromagnet 25' are mounted and fixed. The pair of electromagnet connecting rods 258 has a strip-shaped annular structure, and a hinge hole 2582 with a width larger than that of the slot opening is formed at one end of the annular strip-shaped slot opening 2581. One ends of the pair of electromagnet connecting rods 258 are respectively sleeved on electromagnet connecting rod pin shafts 22313 on two sides of the opening and closing lever 223, and the other ends of the pair of electromagnet connecting rods 258 are connected with pin shaft holes 2512 on the movable iron core 251 through a long pin shaft 259. A limiting chute 2116 for sliding the long pin 259 is disposed above the driving electromagnet mounting boss 2115, a closing lever limiting boss 2117 is disposed on the limiting chute 2116 near the outer side of the side plate 211 and protrudes inwards, it should be noted that, the closing lever limiting boss 2117 is not limited to the above-mentioned position, but in the double-split (the closing ready position of the first spring mechanism) shown in fig. 8a, a closing lever limiting boss two 2120 is disposed at the position of the side plate 211 corresponding to the closing lever of the second spring mechanism 22', and another closing lever limiting boss two 2120 is disposed on the side plate 211 corresponding to the closing lever limiting boss two 2120, the closing lever limiting boss two 2120 can replace the closing lever limiting boss 2117, one pair of closing lever limiting bosses two 2120 and one pair of closing lever limiting bosses 2117 can be alternatively disposed, and the closing lever limiting boss 2117 is disposed in fig. 5, because: in this case, if the two limiting bosses 2120 of the closing and opening lever are provided to limit the right closing and opening lever, as the closing and opening levers on both sides are connected by the connecting rod 24, the limiting of the left closing and opening lever is also performed, and of course, two pairs of the closing and opening levers may be provided together, as shown in fig. 8a to 9 b.

As shown in fig. 5 and 7a, the locking device 28 includes a fixing frame 281, a first locking member 282, a second locking member 282 'and a trigger electromagnet 284, where the first locking member 282 and the second locking member 282' are two sets of identical components symmetrically disposed on the fixing frame 281, and each set of identical components includes a locking buckle 2821, a locking buckle 2822, a locking buckle return spring 2823 for keeping the locking buckle 2821 pushing the locking buckle 2822, and a locking buckle return spring 2824 for keeping the locking buckle limiting the operating mechanism.

The latch return spring 2823 and the latch return spring 2824 may be two independent springs acting on the latch 2821 and the latch 2822 respectively; it is also possible to have two catch arms of a spring as in fig. 7a, with a mounting hole in between the snap return spring 2823 and the snap return spring 2824.

As shown in fig. 7a and 7c, the fixing frame 281 is composed of two fixing frame side plates 2811 and a fixing frame transverse plate 2812, wherein the two fixing frame side plates 2811 and the fixing frame transverse plate 2812 are arranged face to face in the same structure, and a fixing frame through hole 28121 is arranged in the center of the fixing frame transverse plate 2812. The middle part of one of the fixing frame side plates 2811 and the fixing frame transverse plate 2812 is provided with a wiring groove 28111 for arranging coil wires for supplying power to the trigger magnet 284, and one end of the two fixing frame side plates 2811 far away from the fixing frame transverse plate 2812 is outwards protruded with a fixing boss 28112 for fixing the locking device 28 on the mounting bracket 21. A pair of lugs 28113 are respectively arranged on two sides of the two fixing frame side plates 2811, which are close to the fixing frame transverse plate 2812, a hasp mounting pin shaft hole 281131 for hinging a hasp 2821 is arranged on each lug 28113, and a pair of pin shaft holes 28114 hinged with a hasp 2822 are arranged on two sides of the central position of the two fixing frame side plates 2811.

As shown in fig. 7a and 7d, the latch 2821 includes a latch lever 28213 and a trip lever 28212 extending to both sides with a pivot point, the pivot point of the latch 2821 is a latch shaft hole 28211 having an opening, and a trip lever 28212 is disposed at one radial side of the latch shaft hole 28211 for manual unlocking. A latch lever 28213 is provided on the other radial side of the latch shaft hole 28211 for cooperating with a limit lever 28221 of the latch 2822, and also for electric unlocking. Preferably, in this embodiment, the lever body of the latch lever 28213 (see fig. 7 a) is functionally divided into two parts, one part is an electric trip lever 282130 (see fig. 7 d) extending in the middle of the axial direction of the latch shaft hole 28211, the other part is a limiting boss 28214 (see fig. 7 d) respectively disposed at two axial ends of the latch shaft hole 28211, the latch shaft hole 28211 extends in the center of the limiting boss 28214 to form a central hole 282141, and the end surface of the limiting boss 28214 is configured as a latch limiting surface 282142 matched with the latch 2822. A return spring mounting groove 28215 for mounting the snap return spring 2823 and the snap return spring 2824 is provided between the limit boss 28214 and the trip lever 28212 and the electric trip lever 282130. The snap return spring 2823 functions to keep the snap 2821 in a pushing tendency against the snap 2822. The end of the electric trip lever 282130 is provided with a notch 282131. The latch lever 28213 is not limited to the above embodiment, and the stopper boss 28214 and the electric trip lever 282130 may be integrally formed.

As shown in fig. 7a, 7d, 7e and 6e, the latch 2822 includes a stopper rod 28221 and a latch rod 28222 extending to both sides with the rotation center thereof, the latch return spring 2824 acts on the stopper rod 28221, the stopper rod 28221 cooperates with the latch rod 28213, and the latch rod 28222 cooperates with the upper link 221. The rotation center of the lock catch 2822 is a fixed frame hinge hole 28223 in which the lock catch 2822 is hinged with the fixed frame 281, the limit rod 28221 and the lock catch rod 28222 are positioned on two sides of the fixed frame hinge hole 28223, and the lock catch rod 28222 is provided with a lock catch surface 282221 matched with the upper connecting rod limit locking surface 22114. A snap-fit stop surface 282211 is provided on the stop lever 28221, and a stop end surface 2822111 for mating with the bottom surface of the stop boss 28214 is formed at the end of the snap-fit stop surface 282211. The locking surface 282221 and the locking limiting surface 282211 are respectively arranged at two sides of the hinge hole 28223 of the fixing frame, an opening 282212 is arranged at one end of the middle position of the limiting rod 28221, which is close to the locking limiting surface 282211, and the opening 282212 is used for avoiding the electric trip rod 282130 of the locking buckle 2821. The latch return spring 2824 abuts against the limit rod 28221 of the latch 2822, so that the latch 2822 keeps the limit trend on the upper connecting rod 221.

As shown in fig. 7a and 7b, the triggering electromagnet 284 includes a stationary core 2841, a movable core 2842, a coil 2843, a yoke 2844, a return spring 2845 and a push rod 2846, the yoke 2844 includes a yoke cover 28441 and a yoke cover 28442, which are riveted together through a riveting boss and a riveting hole, and the yoke cover 28442 is provided with a coil boss mounting hole 284421. The yoke 2844 is internally provided with a movable iron core 2842, a static iron core 2841, a coil 2843 and a return spring 2845. The stationary core 2841 is riveted to the yoke cover 28441. The static iron core 2841 and the movable iron core 2842 are respectively provided with step holes 28411 and 28421, and the return spring 2845 is abutted against the step holes 28411 and 28421. The coil 2843 is sleeved outside the static iron core 2841 and the movable iron core 2842, the coil 2843 comprises a coil framework 28431, and one end of the coil framework 28431 is provided with a circular boss 284311 protruding upwards. The circular boss 284311 is accommodated in the coil boss mounting hole 284421 of the yoke cover 28442, and the circular boss 284311 partitions the movable iron core 2842 from the yoke 2844. The push rod 2846 is made of non-magnetic materials and consists of a disc-shaped driving boss 28461 and a long screw 28462, the long screw 28462 on the push rod 2846 respectively penetrates through the magnet yoke 2844, the static iron core 2841 and the return spring 2845 and then is adhered to the movable iron core 2842 into a whole through riveting or glue, and the push rod 2846 enables the disc-shaped driving boss 28461 to be abutted against the magnet yoke surface on the side of the static iron core 2841 under the action of the return spring 2845, so that a gap is generated between the movable iron core and the static iron core. The electric trip lever 282130 has a downward pushing force on the push rod 2846 as in the position of fig. 7a due to the snap return spring 2823, i.e., a pushing force for separating the moving and static cores, in which case the return spring 2845 may not be provided.

The disc-shaped driving boss 28461 of the trigger electromagnet 284 passes through the fixing frame through hole 28121 on the fixing frame transverse plate 2812 and then is positioned above the fixing frame transverse plate 2812. The pin 285 passes through both the mount hinge hole 28223 on the mount 2822 and the mount mounting pin hole 28114 on the mount 281 to symmetrically hinge the mount 2822 to the mount side plate 2811. The pin 286 is hinged to the snap mounting pin hole 281131 on the fixing frame lug 28113 after passing through the central hole 282141, the lock shaft hole 28211, the snap return spring 2823 and the mounting hole of the snap return spring 2824 on the snap 2821.

As shown in fig. 7a and 7c, the electric trip lever 282130 in the first latch member 282 and the second latch member 282' are respectively located in the opposite notch 282131, a disc-shaped driving boss 28461 of an electromagnet push rod is directly below the electric trip lever 282130, and the latch 2821 and the latch 2822 make the latch limiting surface 282211 on the latch 2822 abut against the latch limiting surface 282142 of the latch 2821 under the action of the latch return spring 2823. When the trigger electromagnet 284 is powered off, the push rod disc-shaped driving boss 28461 is buried in the fixing frame through hole 28121 of the fixing frame 281, and the electric trip rod 282130 of the hasp 2821 abuts against the surface of the fixing frame transverse plate 2812. When the trigger electromagnet 284 is powered on, the push rod disc-shaped driving boss 28461 jacks up and extends out of the fixing frame through hole 28121, so that the electric tripping rod 282130 of the hasp 2821 is pushed, the hasp 2821 and the hasp 2822 are separated from each other, and unlocking is achieved.

As shown in fig. 5, 7a and 7c, the fixing frame side plate 2811 of the locking device 28 is provided with a mounting positioning surface 28115, the side plate 211 of the operating mechanism is provided with an opening at the upper side of the output shaft center hole 2111, the locking device 28 is matched with the positioning boss surface 2119 of the opening at the upper side of the output shaft center hole 2111 of the side plate 211 through the mounting positioning surface 28115, as shown in fig. 4, and is fixed through the fixing boss surface 28112 on the fixing frame side plate 2811, and is screwed into the side plate 211 after passing through the fixing hole 281121 of the fixing boss surface 28112 through a screw.

The operating mechanism 2 of the present invention has the following principle of operation:

as shown in fig. 8a, when the switch is in the double-split position and the operating mechanism 2 is in the first spring mechanism 22 closing ready position: the upper link 221 in the first spring mechanism 22 is under the spring force of the energy storage spring 224, the upper link limit locking surface 22114 of the upper link 221 is in contact with the locking surface 282221 on the lock catch 2822 in the first locking piece 282, so that the lock catch 2822 overcomes the self spring force and keeps rotating anticlockwise around the rotation center thereof, and the lock catch 2822 keeps static due to the fact that the lock catch limit surface 282211 at the other end of the lock catch 2822 is in contact with the lock catch limit surface 282142 on the lock catch 2821, and the direction of the force of the lock catch 2822 on the lock catch 2821 passes through the rotation center of the lock catch 2821, so that the lock catch 2821 keeps motionless under the self spring force and the action of the frame 21, and the upper link 221 of the first spring mechanism 22 is locked at the upper link limit boss 2114. The free end of the upper link 221 of the second spring mechanism 22' is lifted up around the center of rotation by the tension of the energy storage spring 224 and abuts against the upper link upper limit boss 2114. At this time, since the lower link 222 in the first spring mechanism 22 and the lower link 222 in the second spring mechanism 22' are both positioned at the upper end of the chute 2321 of the output shaft 23, the output shaft 23 is kept at the middle horizontal position, and the contact mechanism driven by the output shaft 23 stays at the second contact position, so as to realize the double-split position of the switch. The opening and closing lever 223 in the first spring mechanism 22 is connected with the opening and closing lever 223 in the second spring mechanism 22' through a connecting rod 24 to form a parallelogram structure. When the first driving electromagnet is powered on, the movable iron core 251 and the static iron core 252 of the first driving electromagnet 25 are attracted, when the first driving electromagnet is powered off, the movable iron core 251 moves away from the static iron core 252 under the action of the return spring 255, but the clockwise rotation moment generated by the energy storage spring 224 in the first spring mechanism 22 on the on-off lever 223 in the first spring mechanism 22 is smaller than the counterclockwise rotation moment generated by the energy storage spring 224 in the second spring mechanism 22 'on the on-off lever 223 of the second spring mechanism 22', the on-off lever 223 of the first spring mechanism 22 abuts against the on-off lever limiting boss 2117, and the movable iron core 251 of the first driving electromagnet 25 is pressed downwards (in the state of fig. 8 a), so that the movable iron core 251 of the first driving electromagnet 25 is located at the lower position, and at the moment, the movable iron core 251 of the second driving electromagnet 25 'and the static iron core 252 are located at the separated position, and the movable iron core 252 of the second driving electromagnet 25' is located at the upper position. The movable parts of the operating mechanism 2 can be stably maintained in this position.

In the above mechanism state, if the first spring mechanism 22 needs to be switched on, the principle of the action process is as follows: when the trigger electromagnet 284 of the locking device 28 is electrified to trigger the moving and static iron cores of the electromagnet to be attracted, the push rod 2846 is driven to push the electric unlocking rod 282130 or the unlocking rod 28212 of the lock catch 2821 in the first locking piece 282 is pressed, the left locking rod 28213 rotates anticlockwise, after the limit of the lock catch 2821 is lost by the lock catch limiting surface 282211 on the lock catch 2822, the free end of the upper connecting rod 221 of the first spring mechanism 22 pushes the locking surface 282221 under the action of the pulling force released by the energy storage spring 224, so that the lock catch 2822 rotates anticlockwise around the hinge point, the upper connecting rod 221 is unlocked and rotates clockwise around the hinge point, and one end of the lower connecting rod 222 is driven to move from one end to the other end of the sliding groove 2321 of the output shaft 23, so that the lower connecting rod 222 and the output shaft 23 are driven to rotate anticlockwise by a certain angle together. Finally, the free end of the upper link 221 of the first spring mechanism 22 abuts against the upper link lower limit shaft 2121, so that a rigid supporting structure is formed at a hinge point between the upper link 221 and the lower link 222 through a dead point position (the upper link 221 and the lower link 222 are approximately 180 °), and the output shaft 23 is driven to rotate anticlockwise, thereby driving the contact mechanism to act. In this process, after the lock catch 2822 is unlocked, a clockwise rotation force is generated under the action of the self spring force, and the limiting end surface 282222 of the lock catch rod 28222 abuts against the sliding limiting surface 22113 of the upper connecting rod 221. The lower link 222 in the second spring mechanism 22 'provides a certain degree of freedom with the output shaft 23, so that when the first spring mechanism 22 is closed, the lower link 222 in the second spring mechanism 22' can slide correspondingly in the sliding slot 2321 of the output shaft 23, so that the closing lever 223 and the upper link 221 of the second spring mechanism 22 'are kept stationary, and meanwhile, each link in the second spring mechanism 22' is kept at the original position under the action of the energy storage spring 224, as shown in fig. 8b. Preferably, the angle between the output arm 232 and the lower link 222 (the angle towards the driving electromagnet 25) is 75 ° to 80 ° at the position shown in fig. 8b, so that one component of the reaction force of the contact mechanism to the lower link 222 passes through the rotation center of the output shaft 23 (the force keeps the output shaft pin 226 on the lower link 222 at the end of the chute 2321 near the rotation center of the output shaft), and the other component passes through the hinge axes of the upper link 221 and the lower link 222. When the first contact closing position is reached, the lower link limiting shaft 2122 on the side of the first spring mechanism 22 acts on the lower link transverse plate 2222 of the corresponding lower link 222, and limits the output shaft pin 226 on the lower link 222 at one end of the sliding groove 2321 close to the rotation center of the output shaft 23, so that the contact pressure of the moving contact and the static contact in the first contact position is ensured. When the trigger electromagnet 284 of the locking device is powered off or the pressing force on the unlocking rod 28212 is removed, the left hasp 2821 is reset under the action of the spring, and the lower bottom surface of the limiting boss 28214 abuts against the limiting end surface 2822111, so that the correctness of the subsequent brake separating action is ensured. In this process, the upper link 221 of the second latch member 282 'is kept at the same position as the moment when the first latch member is ready to close by the tension of the energy storage spring 224 and the upper limit boss 2114 of the upper link, so that the latch 2822 of the second latch member 282' is kept still, and therefore, even if the trigger electromagnet 284 is energized or presses the release lever 28212 of the second latch member 282', the latch 2822 of the second latch member 282' and the upper link 221 of the second latch member 22 'remain locked, and the second latch member 282' remains in place. In the closing state of the first spring mechanism, after the first driving electromagnet 25 is powered on and the moving and static iron cores are attracted, the moving iron core 251 of the first driving electromagnet 25 is kept at the lower position by the action of the return spring 255 after the moving iron core 251 of the first driving electromagnet 25 is cut off, however, as shown in fig. 8b, under the action of the tension of the energy storage spring 224 of the first spring mechanism 22, the closing and opening lever 223 of the first spring mechanism 22 abuts against the closing and opening lever limiting boss 2117, the upper connecting rod 221 of the first spring mechanism 22 abuts against the upper connecting rod lower limiting shaft 2121, and has downward pressure (in the state of fig. 8 b) on the moving iron core 251 of the first driving electromagnet 25, so that the moving iron core 251 of the first driving electromagnet 25 is kept at the lower position, the closing and opening lever 223 of the second spring mechanism 22' is kept at the upper limiting boss 2114 by the action of the energy storage spring 224 of the second spring mechanism 22', the moving iron core 251 of the second driving electromagnet 25' is kept at the whole closing state of the moving electromagnet 25, and the moving electromagnet 252 is kept at the whole state of the first driving electromagnet 2.

In the above mechanism state, when the second driving electromagnet 25 'is energized, the movable iron core 251 of the second driving electromagnet 25' moves downward, and the movable iron core 251 of the second driving electromagnet 25 'drives the on-off lever 223 in the second spring mechanism 22' to rotate clockwise through the electromagnet link 258, and since the on-off lever 223 of the first spring mechanism 22 and the on-off lever 223 of the second spring mechanism 22 'form a parallel four-bar linkage structure through the link 24, the on-off lever 223 of the first spring mechanism 22 rotates clockwise together with the on-off lever 223 of the second spring mechanism 22'. The energy storage spring 224 in the second spring mechanism 22' starts to switch on and store energy, the energy storage spring 224 in the first spring mechanism 22 starts to switch off and store energy, and when the energy storage spring 224 in the first spring mechanism 22 crosses the dead point position (when the two ends of the energy storage spring 224 are in the same line with the rotation center of the upper connecting rod 221), as shown in fig. 8c. The free end of the upper link 221 of the first spring mechanism 22 rotates counterclockwise around the hinge point under the action of the tension released by the energy storage spring 224, and drives one end of the lower link 222 to slide from one end of the output shaft 23 to the other end, so that the lower link 222 and the output shaft 23 are driven to rotate clockwise by a certain angle together, and the limiting end face 282222 of the locking rod 28222 of the lock 2822 in the first locking piece 282 always slides along the sliding limiting surface 22113 on the outer circumference of the upper link 221. Finally, the free end of the upper link 221 of the first spring mechanism 22 abuts against the upper link upper limit boss 2114, completing the opening of the brake. At this time, the catch 2822 rotates clockwise under the action of the self spring force, and slides from the sliding limiting surface 22113 of the upper link 211 to the upper link limiting locking surface 22114 of the upper link 221, the limiting end surface 2822111 of the catch 2822 slides away from the bottom surface of the limiting boss 28214, so as to release the limitation of the catch rod 28213, and the catch 2821 rotates clockwise under the action of the self spring force until the electric release rod 282130 abuts against the fixed plate transverse plate 2812, thereby realizing the automatic reset of the first catch piece 282. At this time, the energy storage spring 224 of the second spring mechanism 22' just crosses over the dead point position and reaches the closing ready position, as shown in fig. 8d, under the action of the energy storage spring 224, the upper link rod limit locking surface 22114 of the upper link rod 221 in the second spring mechanism 22' is in conflict with the locking surface 282221 on the locking catch 2822 in the second locking catch piece 282', so that the locking catch 2822 overcomes the tendency of clockwise rotation around the rotation center after the self spring force, but because the limit surface at the other end of the locking catch 2822 is in conflict with the locking catch limit surface 282142 on the locking catch 2821 and the direction of the force passes through the rotation center of the locking catch 2821, the locking catch 2821 is kept motionless under the action of the self spring force, so that the upper link rod 221 of the second spring mechanism 22' locks the upper link rod limit boss 2114 to complete closing energy storage of the second spring mechanism 22 '. At this time, since the lower link 222 in the first spring mechanism 22 and the lower link 222 in the second spring mechanism 22 'are both positioned at the upper end of the chute of the output shaft 23, the output shaft 23 is kept at the middle horizontal position, so as to realize the double-split position of the mechanism, at this time, the operating mechanism 2 is positioned at the switch-on ready position of the second spring mechanism 22', the switch-on/off lever 223 of the second spring mechanism 22 'is limited by the switch-on/off lever limiting boss 2117 corresponding to the second spring mechanism 22', and the upper link 221 of the first spring mechanism 22 is limited by the upper link upper limiting boss 2114 corresponding to the first spring mechanism 22. The second driving electromagnet 25 'pulls down the on-off lever 223 of the second spring mechanism 22', and at the same time, the on-off lever 223 of the first spring mechanism 22 pulls the movable iron core 251 of the first driving electromagnet 25 to move upward through the electromagnet connecting rod 258. In the process from closing to opening of the first spring mechanism 22 as shown in fig. 8b to 8d, since the lower link limiting shaft 2122 on the side of the first spring mechanism 22 acts on the lower link transverse plate 2222 of the corresponding lower link 222, the output shaft pin 226 on the lower link 222 is limited at one end of the sliding groove 2321 near the rotation center of the output shaft 23, so that the output shaft pin 226 hinged to the lower link 222 and the output shaft is always located inside the sliding groove of the output shaft until the opening is in place during opening and closing of the lower link, and the contact opening speed is faster.

In the above mechanism state, if the second power supply is to be switched on, the second spring mechanism 22 'is switched on, and the position shown in fig. 8e is reached, and at this time, the operating mechanism 2 is located at the second spring mechanism 22' switching on position, and the upper link 221 of the second spring mechanism 22 'is limited by the upper link lower limit shaft 2121 corresponding to the second spring mechanism 22', and the upper link 221 of the first spring mechanism 22 is limited by the upper link upper limit boss 2114 corresponding to the first spring mechanism 22. The action principle process is consistent with the closing principle of the first spring 22. When the second contact closing position is reached, the lower link limiting shaft 2122 on the second spring mechanism 22' side acts on the lower link transverse plate 2222 of the corresponding lower link 222, and limits the output shaft pin 226 on the lower link 222 at one end of the sliding groove 2321 near the rotation center of the output shaft 23, so that the contact pressure of the moving contact and the static contact in the second contact position is ensured.

As shown in fig. 8d, in the state that the second spring mechanism 22' is ready for closing, if the first spring mechanism 22 is to be closed, the energy storage state of the energy storage spring 224 of the mechanism needs to be switched, and the action principle is as follows: when the first driving electromagnet 25 is electrified, the movable iron core 251 of the first driving electromagnet 25 moves downwards, so that the first spring mechanism 22 and the switching-on and switching-off lever 223 in the second spring mechanism 22 'are driven to rotate anticlockwise around the respective rotation centers, the energy storage spring 224 in the first spring mechanism 22 starts to switch on and store energy, the energy storage spring 224 in the second spring mechanism 22' starts to switch off and store energy, and after the energy storage spring 224 in the first spring mechanism 22 crosses over the dead point position, the rotation of the upper connecting rod 221 is limited due to the action of the locking surface 282221 of the first locking piece 282, and therefore, the upper connecting rod 221 and the lower connecting rod 222 of the first spring mechanism 22 are kept unchanged in situ. After the energy storage spring 224 of the second spring mechanism 22' crosses the dead point position, the upper link 221 and the lower link 222 thereof remain unchanged due to the existence of the upper link limit boss 2114. The above procedure just completes the switching of the first spring means 22, the second spring means 22' to the closing ready position.

As shown in fig. 8b and 8e, when the lower link limiting boss 2572 of the movable iron core fixing bracket 257 moves from the opening position to the closing position, the impact between the lower link cross plate 2222 and the lower link limiting boss 2572 causes the output shaft pin 226 of the lower link 222 to slide from the outermost side to the innermost side of the chute 2321 of the output shaft 23 at the initial stage of movement, thereby ensuring the correct mechanism action.

The three-position switch of the present invention can be changed into a two-position switch as follows:

the locker 28 is removed from the three-position switch operating mechanism. As shown in fig. 9a, the initial position of the mechanism is in the closing state of the second spring mechanism 22', when the first spring mechanism 22 needs to be closed, the first driving electromagnet 25 is electrified, and the movable iron core 251 of the first driving electromagnet 25 moves downwards, so that the connecting rod 24 drives the closing and opening levers 223 of the first and second spring mechanisms 22 and 22' to rotate anticlockwise around the respective rotation centers together, the energy storage spring 224 in the first spring mechanism 22 starts to close and store energy, and the energy storage spring 224 in the second spring mechanism 22' starts to open and store energy. When the energy storage spring 224 in the second spring mechanism 22' crosses over the dead point, the free end of the upper connecting rod 221 in the second spring mechanism 22' can rotate clockwise around the hinge point under the action of the tension released by the energy storage spring 224 and drive the lower connecting rod 222, meanwhile, the lower connecting rod 222 drives the output shaft 23 to rotate anticlockwise, and when the free end of the upper connecting rod 221 abuts against the upper limiting boss 2114 of the upper connecting rod, the second spring mechanism 22' is opened. At this time, the energy storage spring 224 in the first spring mechanism 22 just crosses over the dead point, and the free end of the upper link 221 in the first spring mechanism 22 rotates clockwise around the hinge point under the action of the tension released by the energy storage spring 224, and drives one end of the lower link 222 to slide from one end to the other end of the chute of the output shaft 23, so as to drive the lower link 222 and the output shaft 23 to rotate counterclockwise by a certain angle. Finally, the free end of the upper link 221 abuts against the upper link lower limit shaft 2121, completing the closing of the first spring mechanism, as shown in fig. 9 b. The first driving electromagnet 25 pulls down the on-off lever 223 of the first spring mechanism 22, and at the same time, the on-off lever 223 of the second spring mechanism 22 'pulls up the moving iron core 251 of the second driving electromagnet 25' through the electromagnet link 258. In the actual action process, the motion of the output shaft pins 226 on the two sides of the output shaft 23 in the two sliding grooves 2321 of the output shaft 23 and the rotation of the output shaft 23 driven by the two side spring mechanisms are synchronously performed in the opening process of the first spring mechanism 22 and in the closing and opening process of the second spring mechanism 22'.

In the above-described mechanism state, if the second spring mechanism 22' is to be switched on, the operation principle process is identical to the switching-on principle of the first spring mechanism 22.

The operating mechanism of the three-position double-power-supply change-over switch has four positions: the first spring mechanism 22 is at a closing position, and corresponds to the closing position of the first power supply; the first spring mechanism 22 is at a ready position for closing, at this time, the corresponding switch is at a double-split position, and then the first spring mechanism 22 can be closed only by triggering the first locking piece 282 corresponding to the first spring mechanism 22; the second spring mechanism 22 'is at a ready position for closing, and at the moment, the second spring mechanism 22' can be closed only by triggering the second catch piece 282 'corresponding to the second spring mechanism 22'; the second spring mechanism 22' is in a closing position, and corresponds to a second power supply closing position of the switch.

The description of the construction and operation of the operating mechanism 2 is given above and the housing 1 is described below, as in fig. 10a to 22d.

As shown in fig. 10a, 10b and 10c, the casing 1 includes a cover 11, a cover 12, a button interlocking device, a gear shift lever 15, a padlock plate 16 and a manual signal switch driving lever 17, and the button interlocking device includes a button and a slide plate 14. The buttons in this embodiment are two buttons with the same structure, and the first switch-on button 13 located on the left side and the second switch-on button 13' located on the right side are respectively used for pressing the locking device 28 to trigger the energy storage device to act, so as to finally realize the switch-on/switch-off of the contact mechanism.

The casing 1 has three modes of switch position indication (first power switch-on, second power switch-on, double-off, not shown), operating mechanism switch-on ready position indication (first energy storage mechanism switch-on ready 126, second energy storage mechanism switch-on ready 126'), button for manually operating switch-on (button is pressed when the energy storage mechanism displays switch-on ready, the side power switch-on), and manual operation hole (energy storage of the energy storage mechanism is manually carried out to reach switch-on ready position), "manual", "automatic", "locking", and locking (padlock) at the switch double-off position.

As shown in fig. 10a, 10c and 11b, a signal terminal hole 1122 and a carrying port 1123 are provided on the bottom surface of one side of the housing 1, the signal terminal hole 1122 is used for installing a signal terminal interface 11221, and a limit boss 1120 and a limit rib 1121 for matching with the installation frame 21 of the operating mechanism 2 are respectively provided on the bottom and the side of the housing 1. The housing 1 is shaped like a bottom and an opening at one side, the bottom is matched with the base 4 of the automatic transfer switch, and the opening at one side is closed by a side plate 211 of the installation frame 21 of the operating mechanism 2, as shown in fig. 3 a.

As shown in fig. 10c and 13, the top of the housing 1 is formed with a cover 11, the cover 11 faces the operator of the switch, the operator reads the state of the switch, the operation of the switch can be performed through the cover 11, the button is mounted in a button mounting seat 1109 of the cover 11, a button driving rod 132 for driving the operation mechanism 2 to operate is arranged on the button, and the button driving rod 132 extends out of a button hole 11091 on the button mounting seat 1109. The button driving lever 132 is provided with a button return spring 131, one end of which abuts against the inside of the button, and the other end abuts against the button mounting base 1109. When the first spring means 22 or the second spring means 22 'are in the closing ready position, the user can read out on the housing 11, and at this time, the first closing button 13 or the second closing button 13' corresponding to the closing ready is pressed, and the button driving lever 132 pushes the trip lever 28212 of the corresponding catch 2821 in the locking device 28. The button mounting seat 1109 on the housing 11 is further provided with a button limiting groove 11092 on one side facing the position of the slide plate 14, the bottom surface of the groove is matched with the lower surface of the button limiting boss 134, and the stroke of the downward pressing button is limited.

As shown in fig. 10c, 11a and 14, the sliding plate 14 is mounted on the sliding plate boss 1101 of the housing 11, the sliding plate 14 is provided with three sliding plate guiding slots 141 which are not on the same straight line, the housing 11 is correspondingly provided with three sliding plate guiding posts 1102 matched with the sliding guiding slots 141, and sliding plate rollers 1108 are arranged between the sliding plate guiding posts 1102 and the sliding guiding slots 141. The side of the sliding plate 14 facing the gear shift lever 15 is provided with a mating surface 142, and the mating surface 142 includes a first driving end surface 1421, a second driving end surface 1422, a third driving end surface 1423, and a fourth driving end surface 1424. The return spring mounting hole 149 of the slide plate 14 and the return spring mounting hole 1110 of the housing 11 accommodate the return spring 144, one end of the return spring 144 is hung on the hanging hole 145 of the slide plate 14, and the other end is hung on the return spring hanging hole 1105 of the housing 11. The sliding plate 14 is abutted against the gear shift lever 15 by the matching surface 142 under the action of the return spring 144.

As shown in fig. 10c, 11a and 15a, the gear shift lever 15 is mounted above the sliding plate 14, the lever guide groove 1501 on the gear shift lever 15 abuts against the lever guide rib 1103 on the housing 11, and the driving post 1502 on the gear shift lever 15 is inserted into the lever guide groove 1104 of the housing 11, so that the gear shift lever 15 can slide back and forth along the lever guide rib 1103 without deflection. The guide post 1502 of the gear shift lever 15 is used for driving the matching surface 142 on the slide plate 14, and the driving post roller 1511 is sleeved on the driving post 1502. The slide plate 14 is urged against the drive post roller 1511 by the return spring 144 with its mating surface 142. A semicircular support boss 1503 is provided outside the drive column roller 1511 on the shift lever 15.

As shown in fig. 10c, 11a and 16, the padlock plate 16 is pivotally mounted in the padlock plate mounting hole 1106 on the housing 11 through a pin 1610, the mounting surface 1606 thereof abuts against the padlock plate mounting surface 1114 of the housing 11, the pin 1610 passes through the padlock plate mounting pin hole 1107 on the housing 11 and the mounting hinge hole 1601 on the padlock plate 16, and then the padlock plate 16 is hinged to the housing 11, a concentric arc surface is formed outside the padlock plate mounting pin hole 1107 of the housing 11, and the padlock plate 16 can be turned along the arc surface. A padlock reset spring 1602 is further disposed between the padlock plate 16 and the housing 11, the padlock reset spring 1602 is mounted on the inner side of the housing 11, one end of the padlock reset spring 1602 is hung on the reset spring hanging hole 1603 of the padlock plate 16, and the other end is hung on the housing 11.

As shown in fig. 10a, 10b, 10c, 12, 13 and 15b, the cover 12 is mounted above the housing 11 by screws, and the guide post limiting hole 122 on the cover 12 is sleeved on the slide guide post 1102 of the housing 11. The cover 12 is provided with a hanging lock plate mounting hole 121, a shift lever sliding hole 129, a button cavity 125, a manual operation hole 127, a first closing ready indication window 126, a second closing ready indication window 126', so that the hanging lock plate 16, a push rod 1504 on the gear shift lever 15, a first closing button 13, a second closing button 13', and the manual operation rod 27 are respectively accommodated in the padlock plate mounting hole 121, the shift lever sliding hole 129, the button cavity 125, and the manual operation hole 127. The slide plate limit rib 128 and the gear shift lever limit rib 123 on the face cover 12 respectively limit the slide plate 14 and the gear shift lever 15. The button rests with its upper limit ledge 135 against the button upper limit surface 124 of the bezel 12 under the spring force of the button return spring 131. The operating mechanism 2 of the automatic transfer switch includes an indicator (not shown in the figure) for indicating that the energy storage of the driving electromagnet of the operating mechanism 2 is completed, and the indicator is displayed on the face cover 12 through a corresponding first ready-to-close indication window 126 (i.e. indicating that the first spring mechanism 22 reaches the ready-to-close position) or a second ready-to-close indication window 126 '(indicating that the second spring mechanism 22' reaches the ready-to-close position).

As shown in fig. 11a and 15a, two ends of the housing 11 along the sliding direction of the shift lever 15 are respectively provided with a first limit boss 1113 of the shift lever and a second limit boss 1116 of the shift lever, which are matched with the shift slot 1509 of the shift lever 15, so as to realize the shift operation of the shift lever 15.

As shown in fig. 10c, 11a and 17, the manual signal switch driving lever 17 is installed in the manual signal switch driving lever installation hole 1115 from the inner side of the housing 11, a return spring 171 is installed between the manual signal switch driving lever and the housing 11, one end of the return spring 171 is hung on the return spring hanging hole 175 on the manual signal switch driving lever 17, and the other end is hung on the housing 11. The drive surface 173 of the manual signal switch drive lever 17 is pressed against the gear lever 15 by the spring force of the return spring 171.

As shown in fig. 3a, 3b, 10a, 10b, 11b, 15a, 18 and 19, the operating mechanism 2 further includes an output shaft associated member 29, the output shaft associated member 29 includes a cam 291 and an intermediate position interlocking rod 292, the cam 291 is sleeved on the output shaft 23 through a spindle hole 2911 at a central position thereof, and the intermediate position interlocking rod 292 is mounted in an intermediate position interlocking rod mounting hole 1119 on the housing 11. The intermediate position interlocking lever 292 is provided with an output shaft guide hole 2923 and a locker fixed shaft guide hole 2924, which are respectively sleeved on the output shaft 23 and a positioning shaft 2118 of the operating mechanism side plate 211 for fixing the locker 28, so that the intermediate position interlocking lever 292 can slide along the frame side plate 211. A return spring 293 is installed between the intermediate position interlock lever 292 and the operating mechanism 2, one end of the return spring 293 is hung on a spring hanging rod 2921 on the intermediate position interlock lever 292, and the other end is hung on a positioning shaft 2118 of the locking device 28 on the side plate 211 of the installation frame, and under the action of the return spring 293, a limit boss 2922 of the intermediate position interlock lever 292 always keeps a leaning trend towards the shift lever 15. When the automatic transfer switch is in the "double-split" position, the cam notch 2912 on the cam 291 faces upward, so that the stop of the cam 291 facing the spring catch lever 2921 (also serving as a spring catch point) of the intermediate position interlock lever 292 is released, and the spring catch lever 2921 (serving as a protrusion for engaging with the cam notch 2912) of the intermediate position interlock lever 292 can move into the notch, as shown in fig. 3b, so that the stop of the limit boss 2922 on the intermediate position interlock lever 292 to the first driving boss surface 1507 extending from the bottom of the shift lever 15 is released, so that the shift lever 15 can be slid to the "padlock" position.

The action process is as follows:

as shown in fig. 14, 15a, 15b, 16 and 20a, 20b, when the shift lever 15 is uppermost, the shift lever first defining boss 1113 of the housing 11 just falls into the first shift slot 15091 of the shift lever 15, thereby defining the shift lever 15 in the automatic shift. Under the action of the return spring 144, the first driving end surface 1421 of the slide plate 14 abuts against the driving column roller 1511 of the gear shift lever 15, the slide plate 14 is in the first left position, and the manual operation hole 127, the first closing ready indication window 126 and the second closing ready indication window 126 'are respectively covered by the corresponding manual operation hole covering surface 148, the first indication window covering surface 147 and the second indication window covering surface 147' on the slide plate 14, so that manual operation and closing ready indication cannot be realized. The unlocking notch 146 on the sliding plate 14 is staggered with the button limiting bosses 134 on the first closing button 13 and the second closing button 13', and the sliding plate 14 is positioned below the first closing button 13 and the second closing button 13', so that the first closing button 13 and the second closing button 13' are locked and cannot be pressed. The padlock plate limiting surface 1505 on the gear shifter 15 is below the padlock plate locking boss 1608, thus preventing the padlock plate 16 from rotating about the hinge point. At this time, the manual signal driving lever 17 abuts on the lower limit surface 1510 of the shift lever 15 with its driving surface 173 under the action of the self return spring 171, the manual signal driving lever 17 is at the uppermost end, the manual signal micro switch 31 of the signal switch 3 is in the off state, and an automatic operation signal is sent to the controller. After the intermediate position interlocking rod 292 passes through the housing intermediate position interlocking rod mounting hole 1119, the limiting boss 2922 of the intermediate position interlocking rod 292 abuts against the lower limiting surface 1510 of the gear shift lever 15 under the action of the return spring 293, and the intermediate position interlocking rod 292 is at the uppermost end. At this time, the automatic transfer switch is in an automatic state.

When the switch needs to be manually operated, the push rod 1504 on the gear shift lever 15 is manually shifted downwards, the first gear groove 15091 on the gear shift lever 15 pushes the first gear shift lever limiting boss 1113 on the housing 11, so that the first gear shift lever limiting boss 1113 is elastically deformed, when the first gear shift lever limiting boss 1113 slides out of the first gear groove 15091 and reaches the manual gear, the first gear shift lever limiting boss 1113 is elastically restored, and the second gear shift faces 1192 of the two end faces of the gear shift lever 15 in the sliding direction are limited between the first gear shift lever limiting boss 1113 and the second gear shift lever limiting boss 1116, so that the gear shift lever 15 is limited to the manual gear, as shown in fig. 21a and 21b. In the process of sliding the gear shift lever 15 from the automatic gear to the manual gear, the sliding plate 14 is switched from the contact of the first driving end surface 1421 with the driving post roller 1511 on the gear shift lever 15 to the contact of the second driving end surface 1422 with the driving post roller 1511 on the gear shift lever 15 under the action of the return spring 144, so that the sliding plate 14 slides from the leftmost first position to the rightmost second position of the housing 1, and when the driving post roller 1511 slides onto the inflection point 1420 between the second driving end surface 1422 and the third driving end surface 1423, the sliding plate 14 slides onto the rightmost second position of the housing 1, exposing the manual operation hole 1118 and the first and second closing ready indication windows 1117 and 1117' on the housing. When the slide plate 14 is at the second position at the far right end, the two unlocking notches 146 on the slide plate 14 are just aligned with the button limiting bosses 134 on the first closing button 13 and the second closing button 13', the first closing button 13 and the second closing button 13' are unlocked, and the closing operation of the switch can be realized by manually pressing the first closing button 13 or the second closing button 13 '. In the process that the gear shift lever 15 slides from the automatic gear to the manual gear, the first driving boss surface 1507 of the gear shift lever starts to contact the driving surface 173 on the manual automatic signal driving lever 17, and pushes the manual automatic signal driving lever 17 to slide downwards after overcoming the spring force of the return spring 171, the manual automatic signal micro switch 31 of the driving signal switch 3 acts, so that the controller is switched to the manual operation, and finally the driving surface 173 of the manual automatic signal switch driving lever 17 abuts against the first driving boss surface 1507 of the gear shift lever 15 under the action of the return spring 171. During the process of sliding the shift lever 15 from the automatic shift to the manual shift, the middle position interlocking lever 292 still abuts against the lower limiting surface 1510 of the shift lever 15 through the limiting boss 2922 under the action of the return spring 293, and the padlock plate limiting surface 1505 on the shift lever 15 is still under the padlock plate locking boss 1608. At this time, the switch is in a manual state, and the switch is switched on or off by the manual operation lever 27, or the corresponding first switch-on button 13 or second switch-on button 13 'is selectively pressed according to the condition that the first and second spring mechanisms of the operating mechanism 2 displayed on the first switch-on ready indication window 126 or the second switch-on ready indication window 126' drive the electromagnet to store energy to finish the indication piece, so as to implement switch-on operation of the switch.

When the switch is in the middle double-split position, as shown in fig. 3b, the switch can be switched from a manual gear to an isolation gear, the push rod 1504 on the gear shift lever 15 is manually pushed downwards, the second gear surface 15092 on the gear shift lever 15 pushes the gear shift lever second limiting boss 1116 on the housing 11 to cause the gear shift lever second limiting boss 1116 to generate elastic deformation, and when the gear shift lever 15 is in the isolation gear, the gear shift lever second limiting boss 1116 is elastically restored and is clamped into the third gear groove 15093 of the gear shift lever 15, so that the gear shift lever 15 is limited in the isolation gear. As shown in fig. 22a and 22b, in the process that the shift lever 15 slides from the manual gear to the isolation gear, the driving post roller 1511 on the shift lever 15 drives the third driving end surface 1423 of the slide plate 14, the slide plate 14 is pushed to slide leftwards along the slide plate roller 1108 between the guide groove 141 and the housing 1, when the driving post roller 1511 on the shift lever 15 slides to the fourth driving end surface 1424, the slide plate 14 abuts against the driving post roller 1511 under the action of the return spring 144, the slide plate 14 is limited at the leftmost end, and the manual operation hole cover surface 148, the first indication window cover surface 147, the second indication window cover surface 147 'on the slide plate 14 cover the manual operation hole 127, the first closing ready indication window 126 and the second closing ready indication window 126', so that the manual operation cannot be realized. In the process that the gear shift lever 15 slides from the manual gear to the isolation gear, the manual signal driving switch 17 still abuts against the lower limit surface 1510 of the gear shift lever under the action of the reset spring 171, meanwhile, the second driving boss surface 1508 of the gear shift lever starts to contact the limit boss 2922 on the intermediate position interlocking lever 292, pushes the intermediate position interlocking lever 292 to slide downwards after overcoming the spring force of the reset spring 293, inserts into the padlock plate limit surface 1912 of the cam 191, performs isolation locking on the operating mechanism 2, and finally the limit boss 2922 of the intermediate position interlocking lever 292 abuts against the second driving boss surface 1508 of the gear shift lever 15 under the action of the reset spring 293. At this time, the unlocking notch 146 on the sliding plate 14 is staggered with the button limiting bosses 134 on the first closing button 13 and the second closing button 13', and the sliding plate 14 is located below the first closing button 13 and the second closing button 13', so that the first closing button 13 and the second closing button 13' are locked and cannot be pressed. At this time, as shown in fig. 22c, the limiting notch 1506 on the gear shifter lever 15 is aligned with the padlock plate locking boss 1608, when the flip end 1609 of the padlock plate 16 is pressed, the padlock plate 16 overcomes the spring force of the padlock return spring 1602 and rotates around the hinge point until the padlock limiting surface 1607 on the padlock plate 16 abuts against the housing 11, at this time, the padlock hole 1604 on the padlock end 1605 is exposed out of the cover 12 at the other end of the padlock plate 16, and isolation padlock can be realized by installing a lock to prevent operation by a non-operator. As shown in fig. 22d, when the padlock plate 16 is in the flipped lock state, the locking boss 1608 on the padlock plate 16 is in the limit notch 1506 of the shift lever 15, such that the shift lever 15 is locked in the isolated position and cannot be operated. When the lock on the padlock plate 16 is removed, the padlock plate 16 is turned over by the spring force of the padlock return spring 1602 and abuts against the padlock plate mounting surface 121 of the housing 11, and at this time, the padlock plate locking boss 1608 on the padlock plate 16 is located above the limit notch 1506 of the gear shift lever 15, and in the switch height direction (the movement direction of the intermediate position interlock lever 292), the padlock plate locking boss 1608 is located above the padlock plate limit surface 1505, and the gear shift lever 15 can be shifted.

The interlocking device of the button relates to the interlocking of the first closing button 13 and the second closing button 13' on the shell 1, namely the interlocking between the gear shift lever 15 and the slide plate 14 and the first closing button 13 and the second closing button 13', and in addition, the first spring mechanism 22 and the second spring mechanism 22' in the operating mechanism 2 are respectively matched with the first closing button 13 and the second closing button 13' through the top plate 2233 of the closing and opening lever 223, so that the interlocking of the operating mechanism 2 to the first closing button 13 and the second closing button 13' is realized, specifically as follows: after the first driving electromagnet 25 driving the first power source (left side of fig. 3 b) drives the first spring device to finish the energy storage action to reach the switch ready position under the manual driving of the manual operation lever 27 or the electric mode, the switch displays the switch ready state as shown by the switch ready button on the left side of fig. 2, as shown by fig. 3b, the top plate 2233 of the switch-on/off lever 223 of the first spring mechanism 22 on the left side is staggered with the movement direction of the first switch-on button 13, thereby allowing the first switch-on button 13 to press the trip lever 28212 of the first catch member 282 of the latch device 28 (trigger device), so that the first power source side mechanism acts to drive the first power source side moving contact to switch on, and the top plate 2233 of the switch-on/off lever 223 of the second spring mechanism 22' on the right side is on the movement track of the second switch-on button 13', and stops the action of the switch-off lever 28212 of the second latch device 28 ' on the second switch-off button 13' (because the switch-on/off lever 223 on the right side is staggered with the movement direction of the corresponding button 125 cavity), thus the switch-on opening 22331 is opened, the switch-off lever 223 on the bottom of the second switch-off lever 62 ' on the second switch-on the right side is positioned at the bottom of the second switch-off lever 62 ' on the second switch button 62 ' on the side is reduced, thus the movement of the switch-on device is reduced, and the switch-on the side of the switch-off mechanism is easy, and the switch-on the lower than the switch-off lever 62. The button interlock on the housing 1 thus essentially ensures that the button can only be pressed in the manual situation, whereas the button interlock on the switch ensures that only the button on that side of the spring mechanism which has reached the ready-to-close position can be pressed, i.e. the button can only be pressed after being ready, ensuring the correct operation of the switch button.

Claims

1. The utility model provides a switching device, includes shell (1), sets up operating device (2) and by operating device (2) driven contact mechanism in shell (1), shell (1) include housing (11), button, operating device (2) include energy memory and trigger device, drive energy memory and accomplish the energy storage action under manual or electric mode and reach the switch-on ready position after, press button drive trigger device action for energy memory action drives contact mechanism and closes a floodgate, its characterized in that: the switch device also comprises a button interlocking device, wherein the button interlocking device comprises a sliding plate (14) which is arranged on the housing (11) in a sliding manner and slides between a first position corresponding to the electric mode and a second position corresponding to the manual mode, the sliding plate (14) stops the action of the button on the trigger device when the sliding plate (14) is positioned at the first position, and the sliding plate (14) releases the stop of the button when the sliding plate (14) is positioned at the second position; the energy storage device releases the stop of the button when the energy storage device is positioned at the ready position of closing, and stops the action of the button on the trigger device when the energy storage device leaves the ready position of closing; the operating mechanism (2) comprises two side plates (211) which are identical in structure and are arranged face to face, the energy storage device is arranged between the two side plates (211) and comprises a closing and opening lever (223) and an upper connecting rod (221) which are pivoted on the side plates (211) of the mechanism, a lower connecting rod (222) hinged with the upper connecting rod (221), and an energy storage spring (224) with one end hung on the closing and opening lever (223) and the other end hung on a hinge shaft of the upper connecting rod (221) and the lower connecting rod (222); when the energy storage device is positioned at the ready-closing position, the closing and opening lever (223) rotates out of the movement track of the button, the button is allowed to act on the trigger device, and when the energy storage device leaves the ready-closing position, the closing and opening lever (223) rotates onto the movement track of the button, and the action of the button on the trigger device is stopped.

2. A switching device according to claim 1, characterized in that: the button moves in a direction perpendicular to the housing (11), the sliding plate (14) is continuously provided with a stop surface (143) in the sliding direction, and when the sliding plate (14) is positioned at the first position, the stop surface (143) is positioned on the movement track of the button, so that the action of the button on the trigger device is stopped; when the slide plate (14) is positioned at the second position, the stop surface (143) is positioned outside the movement track of the button, so that the button is allowed to act on the triggering device.

3. A switching device according to claim 2, characterized in that: the button is provided with a button limiting boss (134) extending towards the direction of the sliding plate (14), and the button limiting boss (134) is matched with the stop surface (143).

4. A switching device according to claim 1, characterized in that: the novel anti-theft button is characterized in that a button cavity mounting seat (1109) for sinking a button is arranged on the housing (11), a surface cover (12) for sealing the sliding plate (14) and the button cavity mounting seat (1109) is fixed on the housing (11), upper limit convex table tops (135) are arranged on two sides of the button, a button return spring (131) is arranged between the button and the bottom of the button cavity mounting seat (1109), and under the action of the button return spring (131), the upper limit convex table tops (135) keep a trend of leaning against the surface cover (12) and enable the upper surface of the button to be exposed out of the surface cover (12).

5. A switching device according to claim 4, wherein: the button bottom extends to the direction of trigger device and has button actuating lever (132), button reset spring (131) cover is established on button actuating lever (132).

6. A switching device according to claim 4, wherein: the opening and closing lever (223) is provided with a top plate opening (22331) at a position corresponding to the button cavity mounting seat (1109), when the opening and closing lever (223) moves to the corresponding position of the opening and closing lever, the bottom of the button cavity (125) is positioned in the top plate opening (22331), and the edge of the top plate opening (22331) is positioned on the movement track of the button to stop the action of the button on the trigger device.