CN208024496U - A kind of Ignition Switch of motorcycle or electric vehicle lock - Google Patents

Abstract

The utility model discloses a kind of Ignition Switch of motorcycle or electric vehicle locks,Including lock housing,Lock core and shaft,Lock core and shaft are rotatably arranged in lock housing respectively,Shaft is connected with lock core,Holder is installed in lock housing,Holder is equipped with the first sliding groove,Drag-line drive block is equipped in the first sliding groove,The groups of springs that lock core and shaft can be driven to reset is equipped in lock housing,Drive sleeve is arranged in shaft,Drive sleeve is rotatably provided in holder,Drive sleeve rotation can drive drag-line drive block to move,The first guide groove and the second guide groove are provided on the medial surface of drive sleeve,Shaft is equipped with can the guide pad mating with the first guide groove and the second guide groove respectively,Guide pad can be inserted into or be detached from the first guide groove and the second guide groove when shaft is along the axial movement of lock core,Guide pad can be contradicted with the first guide groove and the second guide groove respectively to be coordinated.By using said program, seat cover can be opened in the handlebar of locking motorcycle or electric vehicle, it is easy to operate.

Description

A kind of Ignition Switch of motorcycle or electric vehicle lock

Technical field

The utility model is related to firing switch lock, the Ignition Switch of especially a kind of motorcycle or electric vehicle is locked.

Background technology

It is often used firing switch lock on motorcycle or electric vehicle, can be used for controlling the keying of ignition switch or opens seat Position lid.

General firing switch lock includes lock housing, lock core and shaft, and lock core and shaft are rotatably arranged in lock housing respectively, is turned Axis is connected with lock core, and shaft can be equipped with holder in the axial movement of lock core, the lock housing, and shaft is arranged in holder, Holder is equipped with roller actuator in end position of the shaft far from lock core side, and driving piece and lock bolt are additionally provided on holder, drives piece It is connect with lock bolt, shaft rotation can drive driving piece movement to realize the telescopic moving of lock bolt, and the top of holder is equipped with sliding slot, sliding slot Interior to be equipped with drag-line drive block, drag-line drive block is equipped with zipper mounting groove, and lock housing, which corresponds to, is equipped with drag-line outlet at drag-line drive block Slot, shaft correspond to and are equipped with actuating arm at drag-line drive block, and shaft rotation can make actuating arm drive the movement of drag-line drive block to beat Seat cover is opened, resetting spring is equipped between drag-line drive block and sliding slot.However this kind of firing switch lock is in locking motorcycle or electricity When the handlebar of motor-car, seat cover cannot be opened, it is inconvenient.

Invention content

The utility model overcomes the deficiencies in the prior art, and the Multifunctional ignition for providing a kind of motorcycle or electric vehicle is opened It shuts, in the handlebar of locking motorcycle or electric vehicle, can also open seat cover, it is easy to operate.

To achieve the goals above, the technical solution adopted in the utility model is：A kind of more work(of motorcycle or electric vehicle Energy firing switch lock, including lock housing, lock core and shaft, lock core and shaft are rotatably arranged in lock housing respectively, and shaft joins with lock core Dynamic connection, shaft can be equipped with holder in the axial movement of lock core, the lock housing, and shaft is arranged in holder, and holder is in shaft End position far from lock core side is equipped with roller actuator, and driving piece and lock bolt are additionally provided in lock housing, and driving piece is connect with lock bolt, Shaft rotation can drive the telescopic moving of driving piece movement realization lock bolt, holder to be equipped with the first sliding groove, set in the first sliding groove There are drag-line drive block, drag-line drive block that can be slid along the first sliding groove, drag-line drive block is equipped with zipper mounting groove, and lock housing, which corresponds to, draws It is equipped with drag-line line outlet groove at rope drive block, the first of driving drag-line driving block reset is equipped between the first sliding groove and drag-line drive block Resetting spring, the lock housing is interior to be equipped with the groups of springs that lock core and shaft can be driven to reset, and is arranged with drive sleeve in the shaft, passes Dynamic set is rotatably provided in holder, and drive sleeve rotation can drive drag-line drive block to move, and be set on the medial surface of the drive sleeve It is equipped with the first guide groove and the second guide groove, the first guide groove and the second guide groove are arranged along the axial direction of lock core, in the shaft Equipped with can the guide pad mating with the first guide groove and the second guide groove respectively, be oriented to when shaft is along the axial movement of lock core Block can be inserted into or be detached from the first guide groove and the second guide groove, and guide pad can be contradicted with the first guide groove and the second guide groove respectively Cooperation, when non-pushing lock cylinder stretches into lock housing, shaft is made guide pad be inserted into the first guide groove by the active force of groups of springs, is turned at this time Turn axis can drive drive sleeve rotation to drive drag-line drive block to move；When pushing lock cylinder stretches into lock housing, guide pad can be detached from First guide groove, shaft rotation guide pad can be gone at the second guide groove, and shaft is made guide pad insert by the active force of groups of springs Enter the second guide groove, rotating shaft can drive drive sleeve rotation to drive drag-line drive block to move at this time.

By using said program, rotation lock core opening point fire is positive direction, and rotation lock core locking handlebar is negative direction, The width of first guide groove is more than the width of the second guide groove, the second guide groove and guide pad shape adaptation, the first guide groove pair It answers at electric power starting and the gear of closing, the second guide groove corresponds at the gear of locking handlebar, in the initial state, due to not When pushing lock cylinder stretches into lock housing, shaft is made guide pad be inserted into the first guide groove, the guide pad of shaft by the active force of groups of springs It can be rotated to positive direction small range, shaft can drive roller actuator to carry out ignition operation, can also rotate to negative direction, be oriented at this time The side of block compresses the side of the first guide groove, and shaft drives drive sleeve to be rotated to negative direction, and drive sleeve rotation can drive drag-line Drive block moves, and to open seat cover, (the first back-moving spring can drive drag-line drive block and drive sleeve to reset after opening；It pushes When lock core stretches into lock housing, guide pad can be detached from the first guide groove, the rotation of shaft negative direction, and guide pad can go to the second guide groove Place, during lock core push-in negative direction rotation, shaft can drive driving piece movement to realize that lock bolt stretches out lock housing and locked Handlebar operate, shaft by the active force of groups of springs carry out reset so that guide pad be inserted into the second guide groove, due to guide pad with Second guide groove size is adapted to, and shaft drives drive sleeve to be rotated to negative direction at this time, and drive sleeve rotation can drive drag-line drive block Mobile, to open seat cover, (the first back-moving spring can drive drag-line drive block and drive sleeve to reset after opening, rub in locking When the handlebar of motorcycle or electric vehicle, seat cover can be also opened, it is easy to operate.

The utility model it is further setting be：There are two the first guide groove settings, and the second guide groove is provided with two A, the first guide groove and the second guide groove respectively at corresponding setting two-by-two, wherein there are two guide pad settings, and two are led Setting is corresponded to block.

By using said program, there are two guide pad, the first guide groove and the second guide groove are all provided with, drive sleeve and shaft Stress it is more uniform, transmission more stablize.

The utility model it is further setting be：First limited block there are two being set on the medial surface of the drive sleeve, first Limited block is arranged along the axial direction of lock core, and two the first limited blocks correspond setting, the first limited block be located at the first guide groove and Between second guide groove.

By using said program, when pushing lock cylinder stretches into lock housing, the first limited block can restricted guidance block in drive sleeve The angle of rotation can accurately go to convenient for guide pad at the first guide groove or the second guide groove, operate more convenient, structure Simply.

The utility model it is further setting be：The holder is equipped with the cavity installed for drive sleeve, drive sleeve packet Rotation section and pressure section are included, rotation section is rotatably provided in cavity, and pressure section stretches out cavity and is arranged, on the lateral surface of pressure section Equipped with convex block, drag-line drive block is being equipped with press block close to the side of shaft, and convex block can be contradicted with press block to be coordinated.

By using said program, the rotation section of drive sleeve and the shape adaptation of cavity, rotation section are rotatably provided in recessed Intracavitary, the diameter of pressure section are more than the diameter of rotation section, and pressure section stretches out cavity, and the lower position of drag-line drive block is wholely set There is press block, pillar is extended on press block, (the first back-moving spring is set on pillar, and the lateral surface of pressure section corresponds to press block Place has been wholely set convex block, and when drive sleeve rotates, convex block can contradict press block, to drive drag-line drive block to move, drive sleeve It is easy for installation, stable transmission.

The utility model it is further setting be：The holder is equipped with the second limited block of limitation drive sleeve rotation, convex Block can be contradicted in the end face far from press block side with the end face of the second limited block to be coordinated.

By using said program, the second limited block can limit rotational angle when drive sleeve resets, and ensure drive sleeve energy Enough stable drives open seat cover convenient for next time.

The utility model it is further setting be：The groups of springs includes second back-moving spring and third resetting spring, and Two resetting springs are set on lock core, and lock core is equipped with resistance surface, and second back-moving spring one end contradicts in the resistance surface of lock core, The other end contradicts on the end face of shaft, and third resetting spring is set in shaft, and one end of third resetting spring, which contradicts, is leading To on the end face of block, the other end contradicts on the madial wall of holder.

By using said program, lock core can be resetted under the action of second back-moving spring along its axial direction, and shaft can Axial direction along lock core under the action of third resetting spring is resetted, and shaft is avoided to be detached from the connection with lock core, simple in structure, Installation is stablized.

The utility model it is further setting be：The shaft includes interconnecting piece, driving section and driving portion, and driving section is set to Between interconnecting piece and driving portion and both ends are connect with interconnecting piece and driving portion respectively, interconnecting piece and the concentric setting of driving portion, even Socket part is circumferentially connected with lock core close to the end of shaft side, and the one end of driving portion far from lock core is connect with roller actuator, Guide pad is arranged on driving portion, and driving section and driving portion eccentric setting, driving on piece are equipped with the inclined hole worn for shaft, push away When movable lock core stretches into lock housing, driving section moves at inclined hole, and driving section can be contradicted with inclined hole to be coordinated, and shaft rotation can drive driving piece The telescopic moving of lock bolt is realized in movement, and the position limiting structure that can limit driving piece along the axial movement of lock core is set in the lock housing.

By using said program, the interconnecting piece of shaft is realized by way of grafting to be connected with lock core, shaft Driving portion realized by way of grafting and be connected with roller actuator, when lock core is not compressed into lock housing, lock core band Turn shaft rotation is dynamic, and the driving portion of shaft is arranged in the inclined hole of driving piece, due to driving portion and the coaxial setting of interconnecting piece, shaft Rotation will not drive driving piece movement, cannot drive lock bolt telescopic moving, be operated to carry out car locking and unlock；Work as lock core When being compressed into lock housing, lock core and shaft are moved into lock housing, and the driving section of shaft moves at inclined hole, when shaft rotates thereon Driving section can contradict inclined hole, to drive driving piece movement, lock bolt be driven to carry out telescopic moving, can be carried out after flame-out car locking and Unlock operation, position limiting structure can limit driving piece along the axial movement of lock core, not interfere with the normal work of lock bolt.

The utility model it is further setting be：The position limiting structure includes the limiting slot being arranged in lock housing and sets The supporting block in drive sleeve is set, limiting slot is arranged in driving piece close to the side of lock core, the limiting slot and driving plate shape Adaptation, driving piece coordinate with limiting slot sliding, and the supporting block is arranged in drive sleeve on the end face of driving piece side, support Block can be inconsistent with driving piece.

By using said program, drive the shape adaptation of piece and limiting slot, driving piece that can be slid along limiting slot, supporting block It is integrally disposed upon in drive sleeve, can be inconsistent with the side of driving piece, prevent driving piece to be detached from limiting slot, transmission is more steady It is fixed.

The utility model is further described below in conjunction with the accompanying drawings.

Description of the drawings

Fig. 1 is the overall structure diagram of the utility model embodiment；

Fig. 2 is the mounting structure schematic diagram of each component on holder；

Fig. 3 is the positive structure schematic of drive sleeve in the utility model embodiment；

Fig. 4 is the reverse structure schematic of drive sleeve in the utility model embodiment；

Fig. 5 is the structural schematic diagram of holder in the utility model embodiment；

Fig. 6 is holder, drives the fit structure schematic diagram of piece and lock bolt；

Fig. 7 is the fit structure schematic diagram of shaft, second back-moving spring and third resetting spring；

Fig. 8 is the structural schematic diagram of drag-line drive block in the utility model embodiment；

Fig. 9 is the fit structure schematic diagram of lock core and shaft in the utility model embodiment.

Specific implementation mode

As shown in figs. 1 to 9, the Ignition Switch of a kind of motorcycle or electric vehicle is locked, including lock housing 1,2 and of lock core Shaft 3, lock core 2 and shaft 3 are rotatably arranged on respectively in lock housing 1, and shaft 3 is connected with lock core 2, and shaft 3 links with lock core 2 So that lock core 2 can drive the rotation of shaft 3, energy band turn axis 3 moves again for connection, and shaft 3 can be along the axial movement of lock core 2, lock housing Holder 4 is installed, holder 4 is mounted on by the structure of fixture block and card slot in lock housing 1, and shaft 3 is arranged in holder 4, holder 4 on 1 It is equipped with roller actuator 5 in end position of the shaft 3 far from 2 side of lock core, driving piece 61 and lock bolt 62 are additionally provided in lock housing 1, is driven Movable plate 61 is equipped with latch hole 611, and the end of lock bolt 62 can be inserted into latch hole 611, and the rotation of shaft 3 can drive driving piece 61 to move The dynamic telescopic moving for realizing lock bolt 62, holder 4 are equipped with the first sliding groove 41, are equipped with drag-line drive block 7 in the first sliding groove 41, draw Rope drive block 7 can slide along the first sliding groove 41, and drag-line drive block 7 is equipped with zipper mounting groove 71, and lock housing 1 corresponds to drag-line drive block It is equipped with drag-line line outlet groove 11 at 7, driving drag-line drive block 7 resets first is equipped between the first sliding groove 41 and drag-line drive block 7 Resetting spring 81, lock housing 1 is interior to be equipped with the groups of springs that lock core 2 and shaft 3 can be driven to reset, and drive sleeve 9, holder are arranged in shaft 4 are equipped with the cavity 42 installed for drive sleeve 9, and drive sleeve 9 includes rotation section 91 and pressure section 92, the rotation section of drive sleeve 9 91 are rotatably provided in the shape adaptation of cavity 42, rotation section 91 in cavity 42, and the diameter of pressure section 92 is more than rotation section 91 Diameter, pressure section 92 stretches out cavity 42, and the lower position of drag-line drive block 7 has been wholely set press block 72, on press block 72 It is extended with pillar 721, (the first back-moving spring 81 is set on pillar 721, and one end of (the first back-moving spring 81 is contradicted in press block On 72 end face, the other end contradicts on the side wall of the first sliding groove 41, and the lateral surface of pressure section 92 corresponds to one at press block 72 It is provided with convex block 93, when drive sleeve 9 rotates, convex block 93 can contradict press block 72, to drive drag-line drive block 7 to move, transmission It is provided with the first guide groove 94 and the second guide groove 95 on the medial surface of set 9, the first guide groove 94 and the second guide groove 95 are along lock The axial setting of core 2, shaft 3 is equipped with can the guide pad mating with the first guide groove 94 and the second guide groove 95 respectively 31, guide pad 31 can be inserted into or be detached from the first guide groove 94 and the second guide groove 95 when shaft 3 is along the axial movement of lock core 2, lead It can contradict and coordinate with the first guide groove 94 and the second guide groove 95 respectively to block 31, when non-pushing lock cylinder 2 stretches into lock housing 1, shaft 3 By the active force of groups of springs make guide pad 31 be inserted into the first guide groove 94, at this time rotating shaft 3 can drive drive sleeve 9 rotation from And drag-line drive block 7 is driven to move；When pushing lock cylinder 2 stretches into lock housing 1, guide pad 31 can be detached from the first guide groove 94,3 turns of shaft Action-oriented block 31 can be gone at the second guide groove 95, and shaft 3 is made guide pad 31 be inserted into second and be oriented to by the active force of groups of springs Slot 95, at this time rotating shaft 3 can drive drive sleeve 9 rotation to drive drag-line drive block 7 move, open seat cover after, first Resetting spring 81 can drive drag-line drive block 7 and drive sleeve 9 to automatically reset, convenient for next opening operation.

In the present embodiment, there are two the settings of the first guide groove 94, there are two the settings of the second guide groove 95, the first guide groove 94 and second guide groove 95 respectively at corresponding setting two-by-two, wherein there are two the settings of guide pad 31, two 31 phases of guide pad It is mutually correspondingly arranged, certain first guide groove 94, the second guide groove 95 and guide pad 31 can also be respectively provided with one, the first guide groove At the gear that 94 corresponding powers open and close, the second guide groove 95 corresponds at the gear of locking handlebar.

In the present embodiment, the first limited block 96 there are two being set on the medial surface of drive sleeve 9, the first limited block 96 is along lock core 2 axial setting, two the first limited blocks 96 correspond setting, and the first limited block 96 is located at the first guide groove 94 leads with second To between slot 95.

In the present embodiment, holder 4 is equipped with the second limited block 43 that limitation drive sleeve 9 rotates, and convex block 93 is supported separate The end face of 72 side of briquetting can be contradicted with the end face of the second limited block 43 to be coordinated.

In the present embodiment, groups of springs includes second back-moving spring 82 and third resetting spring 83, second back-moving spring 82 It being set on lock core 2, lock core 2 is equipped with resistance surface 21, and 82 one end of second back-moving spring contradicts in the resistance surface 21 of lock core 2, The other end contradicts on the end face of shaft 3, and third resetting spring 83 is set in shaft 3, and one end of third resetting spring 83 is supported It touches on the end face of guide pad 31, the other end contradicts on the madial wall of holder 4.

In the present embodiment, shaft 3 includes interconnecting piece 32, driving section 33 and driving portion 34, and driving section 33 is set to interconnecting piece Between 32 and driving portion 34 and both ends are connect with interconnecting piece 32 and driving portion 34 respectively, interconnecting piece 32 and driving portion 34 is concentric sets It sets, lock core 2 is equipped with slot 22, interconnecting piece 32 and 22 mating realization shaft 3 of slot and lock core close to the end of 3 side of shaft 2 circumferential linkage, the one end of driving portion 34 far from lock core 2 are connect with roller actuator 5, and guide pad 31 is integrally disposed upon driving portion 34 On, driving section 33 and 34 eccentric setting of driving portion, driving piece 61 are equipped with the inclined hole 612 worn for shaft 3, pushing lock cylinder 2 When stretching into lock housing 1, driving section 33 moves at inclined hole 612, and driving section 33 can be contradicted with inclined hole 612 to be coordinated, and the rotation of shaft 3 can drive It drives the movement of piece 61 to realize the telescopic moving of lock bolt 62, the limit that can limit driving piece 61 along the axial movement of lock core 2 is set in lock housing 1 Bit architecture, position limiting structure include the limiting slot 12 being integrally disposed upon in lock housing 1 and the supporting block being integrally disposed upon in drive sleeve 9 97, limiting slot 12 is arranged in driving piece 61 close to the side of lock core 2, limiting slot 12 and driving 61 shape adaptation of piece, drives piece 61 It slides and coordinates with limiting slot 12, supporting block 97 is arranged in drive sleeve 9 on the end face of driving piece 61 side, and supporting block 97 can be with It drives piece 61 inconsistent, can also do laminated form, be screwed pressing plate and push down drive sleeve 9, limitation drive sleeve 9 moves axially.

Above example, only one kind of the utility model preferably specific embodiment, those skilled in the art are in this reality It is included in the scope of protection of the utility model with the usual variations and alternatives carried out in new technique aspects.

Claims (8)

1. the Ignition Switch of a kind of motorcycle or electric vehicle is locked, including lock housing, lock core and shaft, lock core and shaft difference It is rotatably arranged in lock housing, shaft is connected with lock core, and shaft can be equipped with branch in the axial movement of lock core, the lock housing Frame, shaft are arranged in holder, and holder is equipped with roller actuator in end position of the shaft far from lock core side, drive is additionally provided in lock housing Movable plate and lock bolt, driving piece are connect with lock bolt, and shaft rotation can drive the telescopic moving of driving piece movement realization lock bolt, holder It is equipped with the first sliding groove, is equipped with drag-line drive block in the first sliding groove, drag-line drive block can slide along the first sliding groove, drag-line drive block It is equipped with zipper mounting groove, lock housing, which corresponds to, is equipped with drag-line line outlet groove at drag-line drive block, between the first sliding groove and drag-line drive block The (the first back-moving spring of block reset is driven equipped with driving drag-line, and the spring that lock core and shaft can be driven to reset is equipped in the lock housing Group, it is characterised in that：Drive sleeve is arranged in the shaft, drive sleeve is rotatably provided in holder, and drive sleeve rotation can band Dynamic drag-line drive block moves, and the first guide groove and the second guide groove, the first guide groove are provided on the medial surface of the drive sleeve With the second guide groove along lock core axial direction be arranged, the shaft be equipped with can respectively with the first guide groove and the second guide groove grafting The guide pad of cooperation, guide pad can be inserted into or be detached from the first guide groove and the second guide groove when shaft is along the axial movement of lock core, Guide pad can be contradicted with the first guide groove and the second guide groove respectively to be coordinated, and when non-pushing lock cylinder stretches into lock housing, shaft is by spring The active force of group makes guide pad be inserted into the first guide groove, and rotating shaft can drive drive sleeve rotation to drive drag-line to drive at this time Motion block moves；When pushing lock cylinder stretches into lock housing, guide pad can be detached from the first guide groove, and shaft rotation guide pad can go to second and lead To at slot, shaft is made guide pad be inserted into the second guide groove by the active force of groups of springs, and rotating shaft can drive drive sleeve at this time Rotation is to drive drag-line drive block to move.

2. the Ignition Switch of a kind of motorcycle according to claim 1 or electric vehicle is locked, it is characterised in that：It is described There are two the settings of first guide groove, and there are two the settings of the second guide groove, and the first guide groove and the second guide groove are respectively at two two-phases It is mutually correspondingly arranged, wherein there are two guide pad settings, and two guide pads correspond setting.

3. the Ignition Switch of a kind of motorcycle according to claim 2 or electric vehicle is locked, it is characterised in that：It is described It is set on the medial surface of drive sleeve there are two the first limited block, the first limited block is arranged along the axial direction of lock core, two the first limited blocks Setting is corresponded, the first limited block is between the first guide groove and the second guide groove.

4. the Ignition Switch of a kind of motorcycle according to claim 1 or 2 or 3 or electric vehicle is locked, feature exists In：The holder is equipped with the cavity installed for drive sleeve, and drive sleeve includes rotation section and pressure section, and rotation section is rotatably set It sets in cavity, pressure section stretches out cavity setting, and the lateral surface of pressure section is equipped with convex block, and drag-line drive block is close to shaft Side is equipped with press block, and convex block can be contradicted with press block to be coordinated.

5. the Ignition Switch of a kind of motorcycle according to claim 4 or electric vehicle is locked, it is characterised in that：It is described Holder is equipped with the second limited block of limitation drive sleeve rotation, and convex block can be with the second limited block in the end face far from press block side End face contradict cooperation.

6. the Ignition Switch of a kind of motorcycle according to claim 1 or 2 or 3 or electric vehicle is locked, feature exists In：The groups of springs includes second back-moving spring and third resetting spring, and second back-moving spring is set on lock core, is set on lock core There are resistance surface, second back-moving spring one end to contradict in the resistance surface of lock core, the other end contradicts on the end face of shaft, and third is multiple Position spring is set in shaft, and one end of third resetting spring contradicts on the end face of guide pad, and the other end is contradicted in holder On madial wall.

7. the Ignition Switch of a kind of motorcycle according to claim 1 or 2 or 3 or electric vehicle is locked, feature exists In：The shaft includes interconnecting piece, driving section and driving portion, driving section be set between interconnecting piece and driving portion and both ends respectively with Interconnecting piece is connected with driving portion, interconnecting piece and the concentric setting of driving portion, and interconnecting piece is with lock core close to the end week of shaft side To being connected, the one end of driving portion far from lock core is connect with roller actuator, and guide pad is arranged on driving portion, driving section and drive Dynamic portion's eccentric setting, driving on piece are equipped with the inclined hole worn for shaft, and when pushing lock cylinder stretches into lock housing, driving section moves to inclined hole Place, driving section can be contradicted with inclined hole to be coordinated, and shaft rotation can drive the telescopic moving for driving piece movement to realize lock bolt, the lock housing Inside set the position limiting structure that can limit driving piece along the axial movement of lock core.

8. the Ignition Switch of a kind of motorcycle according to claim 7 or electric vehicle is locked, it is characterised in that：It is described Position limiting structure includes the limiting slot being arranged in lock housing and the supporting block that is arranged in drive sleeve, and limiting slot setting is in driving piece Close to the side of lock core, the limiting slot is adapted to driving plate shape, and driving piece coordinates with limiting slot sliding, and the supporting block is set It sets in drive sleeve on the end face of driving piece side, supporting block can be inconsistent with driving piece.