CN106057521B - A kind of operation mechanism for high voltage switch - Google Patents

Abstract

The present invention relates to operation mechanism for high voltage switch, the operation mechanism for high voltage switch is mounted in switch cabinet body, including breaker mechanism, interrupter and interlocking mechanism, the interlocking mechanism includes the first interlocking mechanism and the second interlocking mechanism, interrupter can not operate when first interlocking mechanism is linked with the second interlocking mechanism to control circuit-breaker switching on-off operation, and breaker mechanism is in separating brake when interrupter operates.The present invention coordinates the second interlocking mechanism to carry out interlocked control by the first interlocking mechanism, and when ensureing to only have interrupter to move in place, breaker is just started to work, when breaker works, interrupter can not be operated, prevent operating personnel's maloperation, ensure equipment and personal safety.

Description

A kind of operation mechanism for high voltage switch

Technical field

The present invention relates to power supplying and distributing equipment technical fields, and in particular to a kind of operation mechanism for high voltage switch.

Background technology

In switchgear, reliable interlock protection must be realized between disconnecting switch and breaker, prevent from accidentally dividing accidentally make and break Road device, prevents on-load from closing disconnecting switch, to ensure equipment component and personal safety.The breaker operator machine of traditional switch cabinet Structure and isolator operating mechanism are all separately to be controlled, and this structure design keeps the volume of switchgear larger, not only reduces The utilization rate in space in switchgear, and it is troublesome in poeration.

Invention content

The purpose of the present invention is being directed to the above shortcoming, a kind of operation mechanism for high voltage switch is provided, interlocking machine is used Structure merges into a single whole the operating mechanism of breaker and disconnecting switch, keeps structure more compact, operation more safe ready.

Scheme is used by the present invention solves technical problem：A kind of operation mechanism for high voltage switch, the high-voltage switch gear behaviour Make mechanism in switch cabinet body, including breaker mechanism, interrupter and interlocking mechanism, the interlocking mechanism include First interlocking mechanism and the second interlocking mechanism, first interlocking mechanism and the second interlocking mechanism are linked to control breaker Interrupter can not operate when breaking-closing operating, and breaker mechanism is in separating brake when interrupter operates.

Further, first interlocking mechanism includes plectrum link mechanism, is rotated for constraining plectrum link mechanism Catch mechanism and the driving lever swung by the drive of plectrum link mechanism, the lower end of the driving lever is located at the second interlocking mechanism Side acts on the locking of driving lever in order to the second interlocking mechanism, and the floodgate semiaxis of the middle part connection breaker mechanism of driving lever is to control The feed motion of breaker mechanism processed.

Further, the plectrum link mechanism includes the plectrum of T-shaped structure, and what the plectrum can rotate upwardly and downwardly is hinged In switch cabinet body, in the initial state perpendicular to switch cabinet body, the head both ends of plectrum are combined with one for one end of plectrum Shape is that the both ends of the connection rod set of Y shape are hinged to drive the movement of connection rod set, the upper end of the driving lever to be set to connecting rod group end Side is in order to drive driving lever swing when connection rod set moves；When stirring plectrum up and down, connection rod set rotation is driven, and then stir driving lever Carry out switch operating component；

Further, operating personnel's maloperation in order to prevent ensures that when operation isolation mechanism breaker machine can not be switched to Structure；The catch mechanism include be set to plectrum link mechanism on front side of for constrain plectrum link mechanism rotation catch and with The catch link mechanism for driving catch to move up and down of catch connection, the catch C-shaped in configuration, the catch connecting rod machine Structure and interrupter when connecting in order to operation isolation mechanism synchronouss driving catch link mechanism swing drive catch in turn or more Sliding；During isolated operation bar moves, operating personnel's maloperation breaker, catch are located at topmost, dial in order to prevent Piece can only be stirred downwards, be in interrupter working condition always, and plectrum, which can not dial up, is switched to breaker work；It is grasping While making isolated operation bar, catch gradually moves down；When isolated operation bar moves in place, catch is moved to bottom, at this time may be used To dial up, it is switched to breaker work, interrupter can not operated at this time.

For locking breaker mechanism during interrupter works, avoid operating personnel that maloperation occurs；It is described Second interlocking mechanism includes two interlock plates being hinged and being connect with the hinged end of two interlock plates above interlock plate Interlocking rod group, the interlocking rod group includes montant moving up and down and drives the cross bar that swings up and down, institute by montant The first lock part for offering on cross bar and being rotated clockwise for locking driving lever is stated, first lock part is a L-shaped recess, It is hinged in the middle part of the interlock plate in switch cabinet body and the non-articulated end of interlock plate is provided with idler wheel, when the idler wheel hangs Interlocking rod group is driven to move up locking driving lever in turn.

In order to reach linkage effect, when main axis, closing operation should can not be carried out；The interlocking rod group is hinged with master Axis connection rod set, main shaft connection rod set include main shaft montant and the hinged main shaft brace in main shaft montant one end, the other end of main shaft brace Set on the side of spindle assemblies, spindle assemblies include main shaft and drive the cam rotated, the spindle assemblies to turn by main shaft Cam stirs the rotation of main shaft brace and drives main shaft montant to move up and then make interlocking rod group locking driving lever when dynamic, to be locked to realize Only closing operation.

It, can locking interrupter or breaker mechanism indirectly when switching manipulation hole in order to reach linkage effect；The interlocking Connection rod set is also hinged with handle hole connection rod set, and the handle hole connection rod set includes lock a door bar and the hinged T-shaped structure of bar of locking a door Bar is stuck up, the second lock part for locking driving lever is provided on the bar of locking a door, described wherein one end for sticking up bar is hinged on switch On cabinet ontology, the other end for sticking up bar is provided with handle hole idler wheel, and the switch cabinet body is hinged with cabinet door, on cabinet door It is provided with handle hole, the handle hole door-plate for switching action hole is provided on handle hole, the handle hole door-plate is moved to the left When roll to coordinate with handle hole idler wheel and carry out locking driving lever to jack up to stick up bar and then jack up bar of locking a door.

In order to which operation isolation operating lever moves and then disconnecting switch is driven to carry out isolated operation；The interrupter includes hand Dynamic manipulation group, the manual manipulation group include handle, the manual gear rotated by handle drives, connect with manual gear transmission The driving gear set that connects and the drive lead screw rotated is driven by driving gear set, is provided with and is used on the manual gear The hexagonal axis being connect with handle is equipped with slide plate, the lower section setting of the interlock plate on the drive lead screw by ball nut There are locking plate, one end of slide plate to coordinate with locking plate so that slide plate is locked in the driving lower edge of drive lead screw by the notch on slide plate Only plate moves, and can pass through to hang rolling cooperation with idler wheel to jack up interlock plate in the idler wheel on locking plate when slide plate moves in place And then drive interlocking rod group to move down to release the limitation to driving lever, it is fixedly connected with isolator operation on the slide plate Bar, drive lead screw drive slide plate movement to drive isolator operation bar to move and then disconnecting switch is driven to carry out isolated operation；Connection It is located on jam plate on the inside of idler wheel and is additionally provided with locking protrusion, offered on the locking plate and is used for the limit chimeric with idler wheel Slot is additionally provided with the locking recess portion chimeric with locking protrusion on locking plate.

In addition to carrying out control interrupter manually, interrupter work can also be automatically controlled by motor；The isolation Mechanism further includes automatic manipulation group, and the automatic manipulation group includes driving motor, the driving gear that is driven by driving motor, described Driving gear is sequentially connected with clutch gear, described manual from being fixedly connected and being driven by gear shaft with manual gear with gear Gear rotates and then the movement of isolator operation bar is driven to carry out isolated operation.

In order to provide power to complete the division of arc-chutes dynamic/static contact, need to carry out energy storage；The breaker mechanism packet Manual energy storage group and automatic energy storage group are included, the manual energy storage group includes crank, the worm screw being connected with crank and passed with worm screw The worm gear of dynamic connection, the worm gear are connected with connecting lever by worm gear shaft, are connected with energy storage axle on the connecting lever, the energy storage axle with Energy-stored spring, which connects and energy-stored spring is driven to stretch, carries out energy storage；In addition to carrying out control stored energy mechanism manually, electricity can also be passed through Machine carries out energy storage control automatically；The automatic energy storage group includes motor, drives the drive gear mechanism rotated, institute by motor Drive gear mechanism is stated to connect with worm screw and drive worm screw to rotate and then energy storage axle rotation is driven to carry out stretching storage to energy-stored spring Energy.

For the prior art, the present invention has the following advantages：The present invention coordinates second by the first interlocking mechanism Latch mechanism carries out interlocked control, and when ensureing to only have interrupter to move in place, breaker is just started to work, and works in breaker When, interrupter can not be operated, prevent operating personnel's maloperation, ensure equipment and personal safety.

Description of the drawings

The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings：

Fig. 1 is the structural schematic diagram of the present invention；

Fig. 2 is the A-A sectional views in Fig. 1；

Fig. 3 is the B-B sectional views in Fig. 1；

Fig. 4 is the C-C sectional views in Fig. 1.

In figure：

1- switch cabinet bodies；101- control circuit boxes；The first interlocking mechanisms of 2-；21- catch mechanism；211- catch；212- Catch link mechanism；22- plectrum link mechanisms；221- plectrums；222- connection rod sets；23- driving levers；The second interlocking mechanisms of 3-；31- joins Lock connection rod set；311- cross bars；312- montants；The first lock parts of 313-；32- interlock plates；321- idler wheels；322- lockings protrusion；33- Locking plate；331- limiting slots；332- locking recess portions；34- main shaft connection rod sets；341- main shaft montants；342- main shaft braces；35- is grasped Make hole connection rod set；351- locks a door bar；352- sticks up bar；353- handle hole idler wheels；4- breaker mechanisms；401- opening buttons；402- Switch knob；403- tripping springs；404- combined floodgate plates；405- floodgate semiaxis；41- manual energy storage groups；411- cranks；412- energy storage Spring；413- worm gears；414- connecting levers；415- energy storage axles；416- worm screws；417- worm gear shafts；42- automatic energy storage groups；421- is driven Gear mechanism；5- interrupters；51- manipulation groups automatically；511- from and gear；512- drives gear；52- manual manipulation groups； 521- manual gears；522- driving gear sets；523- drive lead screws；524- slide plates；6- spindle assemblies；601- cams.

Specific implementation mode

The content of present invention is described in detail with specific embodiment with reference to the accompanying drawings of the specification：

Embodiment：

The present embodiment provides a kind of operation mechanism for high voltage switch, as shown in Figs 1-4, the operation mechanism for high voltage switch installation In switch cabinet body 1, including interrupter 5, breaker mechanism 4 and interlocking mechanism, the interlocking mechanism include first Latch mechanism 2 and the second interlocking that locking is carried out to breaker mechanism 4 or interrupter 5 being linked with the first interlocking mechanism 2 Mechanism 3.

In the present embodiment, operation isolation mechanism 5, opening operation hole door-plate, handle hole door-plate are moved to the left, handle hole door Plate is rolled to coordinate and then will stick up bar 352 with handle hole idler wheel 353 and be jacked up, and is stuck up 352 right end of bar and is hinged with switch cabinet body 1, sticks up bar 352 left ends are rotated up, and bar 351 of locking a door is driven to move up, and the second lock part locked a door on bar 351 plays locking to driving lever 23 and makees With because locking a door, there are one resetting springs for the setting of 351 lower end of bar, and when extracting handle, handle hole door-plate does not have handle blocking, locks a door Bar 351 moves down drive under action of reset spring and sticks up the reset of bar 352, sticks up bar 352 and pushes handle hole door-plate that handle hole is made to close On, when operation isolation mechanism 5, driving lever 23 is locked up, and can not carry out the closing operation of breaker mechanism 4.

In the present embodiment, handle being inserted on manual gear 521, rotational handle drives manual gear 521 to be driven, with The driving gear set 522 that manual gear 521 engages, which synchronizes, to be driven, and drives drive lead screw 523 to rotate, 523 band of drive lead screw Dynamic slide plate 524 moves, and slide plate 524 is moved along locking plate 33 between two idler wheels 321, because the middle part of locking plate 33 is hinged on In switch cabinet body 1, in the pushing tow of no slide plate 524,32 one end of interlock plate falls idler wheel 321, rotates counterclockwise, interlock plate 312 stress of montant of 32 other ends moves up, and drives cross bar 311 to be swung up, the L-shaped recess on cross bar 311 is to driving lever 23 It is limited, 23 lower end of driving lever is constrained, prevents driving lever 23 from rotating, because closing operation is by pressing switch knob 402, making Combined floodgate plate 404 rotate so that closes a floodgate, during this rotation of combined floodgate plate 404 can drive floodgate semiaxis 405 rotation in turn Driving lever 23 is driven to rotate, but because 23 lower end of driving lever is constrained, driving lever 23 can not rotate and then 405 locking of floodgate semiaxis is made combined floodgate Plate 404 can not also rotate, to carry out closing operation；Meanwhile during operation isolation mechanism 5, catch connecting rod machine Structure 212 drives catch 211 to move down, and the action that plectrum 221 dials up at this time is locked up, in 5 moving process of interrupter It can not carry out breaker switching-on operation.

In the present embodiment, when interrupter 5 is moved in place, catch 211 is moved to topmost, and plectrum 221 can be upward It stirs；When slide plate 524 moves in place, slide plate 524 passes through idler wheel 321, because idler wheel 321 is mounted on one end of interlock plate 32 and connection The central rotational of jam plate 32 is mounted in switch cabinet body 1, and idler wheel 321 rolls on slide plate 524 makes 32 one end of interlock plate tilt, Interlock plate 32 is driven to rotate clockwise, 312 stress of montant of 32 other end of interlock plate moves down, and cross bar 311 is driven to put upwards Dynamic, the L-shaped recess on cross bar 311 no longer limits driving lever 23, and 23 lower end of driving lever is unfettered, and driving lever 23 can rotate, and press Switch knob 402, the rotation of combined floodgate plate 404 drive the rotation of floodgate semiaxis 405 to carry out closing operation.

In the present embodiment, catch control panel is set in 524 side of slide plate, the front and back side of catch control panel is provided with convex Portion, slide plate 524 block protrusion and the movement of catch control panel, the movement of catch control panel are driven to drive catch connecting rod when being moved to two poles end Mechanism 212 moves, and slide plate 524 touches the protrusion on rear side of catch control panel, drives catch 211 to move down, slide plate 524 touches gear Protrusion on front side of piece control panel drives catch 211 to move up.

In the present embodiment, the combined floodgate of the dynamic/static contact of arc-extinguishing chamber of circuit breaker needs power, it is therefore desirable to first to energy storage bullet Spring 412 carries out energy storage to provide power, by rotating crank 411, drives worm screw 416 to rotate, worm screw 416 engages with worm gear 413 Drive worm gear 413 to rotate, because being provided with pawl on worm gear 413 so that turbine can only one direction rotated, to ensure toward storage Worm gear 413 will not turn round when energy direction rotation of worm gear 413, and this one direction locking structure prior art has more middle scheme real It is existing, after the completion of energy storage, switch knob 402 is pressed, the release band moving cam rotating percussion idler wheel of energy-stored spring 412 drives spindle assemblies 6 rotations, closing vacuum arc-chutes dynamic/static contact are closed, and spindle assemblies 6 rotate, and 342 turns of main shaft brace is driven by cam 601 Dynamic, main shaft brace 342 pushes main shaft montant 341 to move up, and then so that interlocking rod group 31 is moved up and carry out locking to driving lever 23, at this time Handle hole door-plate, which is lockable, to be opened, and interrupter 5 can not be operated.

In the present embodiment, after pressing opening button 402, tripping spring 403 pushes the dynamic/static contact of arc-extinguishing chamber of circuit breaker Separating brake, driving lever 23 and handle hole door-plate are unfettered, opening operation hole door-plate, and negative direction rotation manual gear 521 makes transmission Lead screw 523 drives slide plate 524 back to move, and without the pushing tow of slide plate 524,32 one end of interlock plate falls, revolves counterclockwise idler wheel 321 Turn, 312 stress of montant of 32 other end of interlock plate moves up, and drives cross bar 311 to be swung up, the L-shaped recess on cross bar 311 Driving lever 23 is limited, 23 lower end of driving lever is constrained, prevents driving lever 23 from rotating, and can not carry out closing operation；When slide plate 524 In place, isolation switch is fully disconnected for return, idler wheel 321 is passed through when slide plate 524 moves back, idler wheel 321 rolls on slide plate 524 makes connection 32 one end of jam plate tilts, and drives interlock plate 32 to rotate clockwise, 312 stress of montant of 32 other end of interlock plate moves down, band Dynamic cross bar 311 is swung up, and the L-shaped recess on cross bar 311 is no longer detached from driving lever 23 and limits, and 23 lower end of driving lever is unfettered, Driving lever 23 rotates, and presses switch knob 402, and combined floodgate plate 404 is made to have rotating tendency, combined floodgate plate 404 that floodgate semiaxis 405 is then driven to revolve It rotates into and driving lever 23 is driven to rotate, carry out closing operation, in addition, because further realizing breaker mechanism 4 when interrupter 5 operates It can not separating brake.

In the present embodiment, the control circuit box 101 for controlling the switchgear is provided in switch cabinet body 1；Switch The various instruction disks for being used to indicate working condition are provided on cabinet ontology 1, the instruction disk is connected with link mechanism, link mechanism It is connect with respective mechanism when being worked with implementation mechanism and instruction disk is driven to make corresponding actions.

Specific implementation process：Interrupter 5 is operated manually, at this point, catch 211 is in the top, because of catch 211 Blocking, plectrum 221 can not be dialled upwards manipulates breaker mechanism 4 to switch, and breaker mechanism 4 cannot work, and passes through handle and turns It starts moving gear 521, the driving gear set 522 engaged with manual gear 521 drives drive lead screw 523 to rotate, drive lead screw 523 On slide plate 524 synchronize and carry out mobile and then drive clutch lever movement, while drive lead screw 523 move, drive and keep off Piece 211 moves gradually downward；In place, because catch 211 moves to bottom, plectrum 221 dials up control lever movement to be isolated Constraint is lost, plectrum 221 can be operated and rotated up, controllable breaker mechanism 4；When operating stored energy mechanism, energy storage hand is rotated Handle makes worm screw 416 rotate synchronously, and drives worm gear 413 to rotate and then energy storage axle 415 is driven to rotate, draw energy-stored spring 412 Energy storage is stretched, energy-stored spring 412, which elongates, arrives setting position, presses 402 energy accumulation spring of switch knob release band moving cam rotating percussion and rolls Wheel drives 6 rotary switch vacuum interrupter dynamic/static contact of spindle assemblies to be closed, when pressing 402 closing vacuum arc-chutes of opening button Dynamic/static contact separates, at this time operable isolation control stick.

Above-listed preferred embodiment, has been further described the object, technical solutions and advantages of the present invention, is answered Understand, the foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.

Claims (9)

1. a kind of operation mechanism for high voltage switch, the operation mechanism for high voltage switch is mounted in switch cabinet body (1), and feature exists In：Including breaker mechanism (4), interrupter (5) and interlocking mechanism, the interlocking mechanism includes the first interlocking mechanism (2) With the second interlocking mechanism (3), first interlocking mechanism (2) is linked with the second interlocking mechanism (3) to control breaker machine Interrupter (5) can not operate when structure (4) closing operation, and breaker mechanism (4) is in separating brake when interrupter (5) operates；

First interlocking mechanism (2) includes plectrum link mechanism (22), the gear for constraining plectrum link mechanism (22) rotation Piece mechanism (21) and the driving lever (23) swung by plectrum link mechanism (22) drive, the lower end of the driving lever (23) is located at The side of second interlocking mechanism (3) carries out locking in order to the second interlocking mechanism (3) to driving lever (23), and driving lever connects in the middle part of (23) The floodgate semiaxis (405) of breaker mechanism (4) is connect to control the feed motion of breaker mechanism (4).

2. operation mechanism for high voltage switch according to claim 1, it is characterised in that：The plectrum link mechanism (22) includes The plectrum (221) of T-shaped structure, what the plectrum (221) can rotate upwardly and downwardly is hinged in switch cabinet body (1), plectrum (221) Head both ends and a combined shaped be that the both ends of connection rod set (222) of Y shape are hinged to drive the movement of connection rod set (222), The upper end of the driving lever (23) is located at connection rod set (222) end side in order to drive driving lever (23) when connection rod set (222) are mobile It swings.

3. operation mechanism for high voltage switch according to claim 1, it is characterised in that：The catch mechanism (21) includes being set to On front side of plectrum link mechanism (22) for constrain plectrum link mechanism (22) rotation catch (211) and with catch (211) Connection to drive catch (211) move up and down catch link mechanism (212), catch (211) C-shaped in configuration, institute State synchronous driving catch link mechanism when catch link mechanism (212) is connected with interrupter (5) for operation isolation mechanism (5) (212) it swings and then catch (211) is driven to slide up and down.

4. operation mechanism for high voltage switch according to claim 1, it is characterised in that：Second interlocking mechanism (3) includes Two interlock plates (32) being hinged and the connection being connect with the hinged end of two interlock plates (32) above interlock plate (32) Connection rod set (31) is locked, the interlocking rod group (31) includes montant moving up and down (312) and driven up and down by montant (312) The cross bar (311) of swing offers the first lock part rotated clockwise for locking driving lever (23) on the cross bar (311) (313), it is hinged in switch cabinet body (1) in the middle part of the interlock plate (32) and the non-articulated end of interlock plate (32) is provided with rolling It takes turns (321), interlocking rod group (31) is driven to move up locking driving lever (23) in turn when the idler wheel (321) hangs.

5. operation mechanism for high voltage switch according to claim 4, it is characterised in that：The interlocking rod group (31) is hinged with Main shaft connection rod set (34), main shaft connection rod set (34) include main shaft montant (341) and the hinged main shaft in main shaft montant (341) one end The other end side of brace (342), main shaft brace (342) is equipped with spindle assemblies (6), and the spindle assemblies (6) are stirred when rotating Main shaft brace (342) rotation drives main shaft montant (341) to move up and then makes interlocking rod group (31) locking driving lever (23).

6. operation mechanism for high voltage switch according to claim 4, it is characterised in that：The interlocking rod group (31) is also hinged It includes lock a door bar (351) and the hinged T shapes of bar (351) of locking a door to have handle hole connection rod set (35), the handle hole connection rod set (35) Structure sticks up bar (352), and the second lock part for locking driving lever (23) is provided on the bar of locking a door (351), described to stick up bar (352) wherein one end is hinged in switch cabinet body (1), and the switch cabinet body (1) is equipped with cabinet door, cabinet door On be provided with handle hole for operation isolation mechanism (5), the handle hole door-plate for switching action, institute are provided on handle hole It states to jack up the other end for sticking up bar (352) when handle hole door-plate is moved to the left and then jack up bar (351) of locking a door and carrys out locking driving lever (23).

7. operation mechanism for high voltage switch according to claim 4, it is characterised in that：The interrupter (5) includes manual Manipulation group (52), the manual manipulation group (52) includes handle, the manual gear (521) and hand that are rotated by handle drives The driving gear set (522) and the driving wire rotated is driven by driving gear set (522) that moving gear (521) is sequentially connected Bar (523) is equipped with slide plate (524) on the drive lead screw (523), locking plate is provided with below the interlock plate (32) (33), one end of slide plate (524) is mobile along locking plate (33) under the driving of drive lead screw (523), and slide plate (524) is by hanging down It falls to roll to coordinate with idler wheel (321) at idler wheel (321) on locking plate (33) and be interlocked with jacking up interlock plate (32) and then driving Connection rod set (31) moves down to release the limitation to driving lever (23), and isolator operation is fixedly connected on the slide plate (524) Bar, drive lead screw (523) drive slide plate (524) it is mobile drive isolator operation bar to move so that drive disconnecting switch carry out every From operation.

8. operation mechanism for high voltage switch according to claim 7, it is characterised in that：The interrupter (5) further includes certainly Dynamic manipulation group (51), the automatic manipulation group (51) includes driving motor, the driving gear (512) that is driven by driving motor, institute It states driving gear (512) and is sequentially connected with clutch gear (511), the clutch gear (511) passes through tooth with manual gear (521) Wheel shaft is fixedly connected and drives manual gear (521) to rotate and then the movement of isolator operation bar is driven to carry out isolated operation.

9. operation mechanism for high voltage switch according to claim 1, it is characterised in that：The breaker mechanism (4) includes hand Dynamic energy storage group (41) and automatic energy storage group (42), the manual energy storage group (41) include crank (411), are connected with crank (411) Worm screw (416) and the worm gear (413) that is connect with worm-drive, the worm gear (413) is connected with by worm gear shaft (417) to be turned Arm (414) is connected with energy storage axle (415) on the connecting lever (414), and the energy storage axle (415) connect simultaneously with energy-stored spring (412) It drives energy-stored spring (412) to stretch and carries out energy storage；The automatic energy storage group (42) includes motor, is rotated by motor driving Drive gear mechanism (421), the drive gear mechanism (421) connect with worm screw (416) and drive worm screw (416) rotation in turn It drives energy storage axle (415) to rotate and stretching energy storage is carried out to energy-stored spring (412).