CN104295161B

CN104295161B - Safe box opening linkage mechanism with automatically retractable handle

Info

Publication number: CN104295161B
Application number: CN201410542991.6A
Authority: CN
Inventors: 曹松祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-10-15
Filing date: 2014-10-15
Publication date: 2017-02-01
Anticipated expiration: 2034-10-15
Also published as: CN104295161A

Abstract

A safe box opening linkage mechanism with an automatically retractable handle is characterized in that a motor is mounted on the back of a safe box door panel; a gear is mounted on an output shaft of the motor; a handle spindle is provided with a bushing and capable of penetrating the same; the bushing is provided with a rack which meshes with the gear and is arranged along the axial direction of the handle spindle; the motor does forward and reverse rotation or stops rotation under control of a first motor switch, a second motor switch and a motor start switch, and drives the bushing to move forwards or backwards so as to drive the handle spindle and a handle to extend forwards or retract backwards. The safe box opening linkage mechanism with the automatically retractable handle has the advantages that during door locking, the motor drives the handle to retract automatically so that the handle is hidden in a cavity of the safe box door panel; after the safe box is unlocked, the motor drives the handle to extend out of the cavity automatically so that users can open the door conveniently; thus, operation of the handle is facilitated and safety of the safe box is improved.

Description

Handle of safe deposit box automatic telescopic door-opening linkage mechanism

Technical field

The present invention relates to a kind of condom, especially relate to a kind of handle of safe deposit box automatic telescopic door-opening linkage mechanism.

Background technology

The feature of traditional insurance case door-opening mechanism is after condom unlocks, and opens guarantor by the device of similar handle mechanism Dangerous chamber door, and this handle mechanism is often provided in the outside extrusion position of safe door so that user can be more convenient Open condom.But, often person thefted is utilized this point, and thief destroys guarantor by the handle mechanism of this outside Dangerous case, thus reduce the theftproof performance of condom.Even if final thief does not successfully pass handle mechanism and breaks a safe, This handle mechanism also tends to destroyed so that user cannot open condom by normal mode again.Additionally, handss Handle mechanism is arranged at extrusion position and is also unfavorable for that safety cabinet transports, and in transportation, handle is subject to the collision in the external world and makes Become handle outward appearance to destroy, serious can cause handle axle fracture or deformation, make handle integrally lose serviceability, impact insurance Case normally-open.

For drawbacks described above, people have invented telescopic handle mechanism, and existing telescopic handle mechanism can be by handle Body is hidden in the recess of door-plate, so that handle body surface is flushed with the outer face of door-plate it is ensured that handle will not be by transportation The external world collides and damages, and is also prevented from lawless person in the case of not knowing password or not having key, forced rotating handss Handle leads to drive mechanism in condom and the damage of latch mechanism.As Patent No. zl 200720191731.4 (Authorization Notice No. For cn 201125597y) Chinese utility model patent " for safe use telescopic handle mechanism " just disclose this A kind of telescopic handle mechanism using for safe of sample, this telescopic handle mechanism includes handle it is characterised in that handle On axis pass through bin door-plate on installing hole, and between handle and door-plate support on spring, the axis on handle in Between position have bayonet socket, be clasped with mobilizable clamp, and clamp passed through pilot hole and pin fit structure and hangs After door-plate, power driving part is directly or indirectly connected with clamp, and the axis on handle is in rear positions Dispose upper limit part.

Above-mentioned existing telescopic handle mechanism in operation, with handss, handle need to be pressed in door-plate, then by lock Determine mechanism by locking door, if handle pressing is not put in place by handss, occur that Handle axis can not be locked by lock construction, need to enter Row repeatedly presses handle, and during pressing handle may unconsciously turning handle, therefore inconvenient operation, steadily Property is poor.And, this locking mechanism is related to that part is many, structure is complex, and parts are fragile and change, safeguard more inconvenience.

Content of the invention

First technical problem to be solved by this invention is for above-mentioned state of the art, provides a kind of structure letter Single, easy to operate handle of safe deposit box automatic telescopic door-opening linkage mechanism.

Second technical problem to be solved by this invention is for above-mentioned state of the art, provides in electrical fault shape Under state, energy manual-operated emergent stretches out the handle of safe deposit box automatic telescopic door-opening linkage mechanism of handle.

The technical scheme that above-mentioned first technical problem of present invention solution is adopted is: this handle of safe deposit box automatic telescopic is opened Door linking mechanism, including handle be arranged on handle rear portion can be with the Handle axis of handle synchronous axial system, described Handle axis activity Be connected through the door-plate of condom and with the slide plate positioned at door-plate dorsal part, described slide plate with Handle axis rotation and to inside and outside door-plate Two side shiftings, the front of described door-plate is provided with the cavity being adapted with described handle, and described Handle axis move forward relative to door-plate To stretch out in described cavity with fixed handle, described Handle axis door-plate relatively is moved rearwards by with recessed described in being placed in fixed handle Intracavity it is characterised in that: in the dorsal part of described door-plate, motor is installed, gear is provided with the output shaft of motor, described Handle axis on axle sleeve is installed, described axle sleeve have be meshed with described gear and along Handle axis axial direction setting Tooth-strip part, described link gear also include the first motor switch that motor can be made to be rotated forward, leave the motor off turn Dynamic the second motor switch and make motor make counter-rotational activate switch, the first described motor switch can be in safe locking Be triggered under state and so that motor is rotated forward, and and then the transmission by gear and tooth-strip part and driving handle is retracted to backward In described cavity, described motor start switch is triggered under condom released state and so that motor is rotated backward, and and then By the transmission of gear and tooth-strip part, driving handle forward extends out to outside described cavity, and the second described motor switch is in handss Fully extended being triggered in the state of cavity of handle and leave the motor off rotation.

The technical scheme that above-mentioned second technical problem of present invention solution is adopted is: this handle of safe deposit box automatic telescopic is opened Door linking mechanism has a radial direction slotted eye in the sidepiece of described axle sleeve, and described Handle axis are axially across described radial direction slotted eye simultaneously Position corresponding with radial direction slotted eye is formed with limited impression, an emergent plectrum radial direction is plugged in described radial slot in the hole energy Keep axial synchronizing moving with described axle sleeve, under motor normal operating conditions, described emergent plectrum is embedded in described limit In the groove of position and with Handle axis, axle sleeve composition integral piece and can axial synchronizing moving, the shape hindering for some reason in motor and cannot rotating Under state, described emergent plectrum can depart from described limited impression after stirring and enable Handle axis relative to axle sleeve and emergent plectrum Move axially.

Preferably, the side that described emergent plectrum stretches into radial slot in the hole has endoporus, and the inner end of described endoporus can be embedding It is located in described limited impression, the outer end of described endoporus is separated with described limited impression all the time, and, described emergent group The outer end of piece stretches out in described axle sleeve, and described link gear is also included the emergent lock being matched with described emergent plectrum and dials Piece, under motor normal operating conditions, the inner end of described endoporus is embedded in described limited impression, hinder for some reason in motor and In the state of cannot rotating, described emergent lock plectrum can promote emergent plectrum to move to radial slot in the hole and make the inner end of endoporus Depart from described limited impression.So, emergent plectrum can be promoted to move inward by emergent lock plectrum, and when emergent plectrum Handle axis and handle can be pulled out forward after departing from Handle axis, in order to user operation.

Multiple guiding fit structures can be had it is preferable that described emergent plectrum between emergent plectrum and emergent lock plectrum Lateral surface is formed with the first guiding surface of oblique outer incline from top to bottom, and described emergent lock plectrum is located at the outer of emergent plectrum Side simultaneously moves up and down, and the emergent side locking the emergent plectrum lateral surface of plectrum direction is formed with and is matched with described first guiding surface The second guiding surface closing, promotes described emergent plectrum to move inward during described emergent lock plectrum moves down.

Further preferably, the leading section in described Handle axis is arranged with a pretensioned spring, after described pretensioned spring Being collided with described axle sleeve in end, is collided with described handle and make handle maintain becoming of forward movement in the front end of described pretensioned spring Gesture, in the state of described emergent plectrum is separated with Handle axis, described pretensioned spring promotes described Handle axis and handle Synchronizing moving forward.So, after emergent plectrum departs from Handle axis, under the elastic force of pretensioned spring acts on, handle and handle Axle can synchronously forward extend out.

Preferred as any of the above-described scheme, the rear end of described Handle axis is provided with can be with the office of Handle axis synchronous axial system Gear, described slide plate include total slide plate and after tether fishplate bar, described total slide plate and after tether fishplate bar all the time with described office tooth Wheel holding is engaged and is made rightabout and moves.So, by the rotation of Handle axis drive total slide plate and after tether fishplate bar make contrary Direction is moved, when total slide plate and after tether the outside side shifting of fishplate bar after, safe door panel closure is lockable, when total slide plate and after tether and connect Plate, to after medial movement, can open safe door panel closure.

Further preferably, the first described motor switch is arranged on the dorsal part of door-plate, is provided with described total slide plate First contact, described first contact triggers the first described motor switch with the outside side shifting of total slide plate.So, the first electricity Machine switch is triggered by total being displaced outwardly of slide plate, and the first motor switch makes motor rotate forward after being triggered, and then drives handss Arbor and handle are retracted backward.

In order that the overall structure of link gear is more firm, it is separately installed with internal shield inside and outside described door-plate Cover and handle cover for seat, are formed with described cavity on described handle set set, are provided with motor in described interior shield Support, described motor is arranged on described electric machine support.

Further preferably, the second described motor switch is arranged on described electric machine support, and described axle sleeve is provided with Two contacts, described the second wafer triggers the second described motor switch with the forward movement of axle sleeve.So, the second motor is opened Close and be triggered by the forward movement of axle sleeve, the second motor switch rear motor that is triggered stops operating.

Compared with prior art, it is an advantage of the current invention that: this handle of safe deposit box automatic telescopic door-opening linkage mechanism is passed through Setting makes motor the first motor switch rotating forward, the second motor switch of leaving the motor off rotation and make motor make reversely to turn Dynamic activate switch, can make condom in the locked state, and handle is retracted in the cavity of door-plate automatically, in condom unblock Under state, handle forward extends out automatically opens chamber door in order to operator, additionally, this link gear is additionally provided with outside cavity Motor can make handle stretch out in the emergency mechanism outside cavity in the case of breaking down manually, after said structure, this gear Not only operation is very easy for structure, and also enhances the safety of condom.

Brief description

Fig. 1 is the structural representation (removing handle) of embodiment of the present invention door body；

Fig. 2 is the front view of embodiment of the present invention door body；

Fig. 3 is the door body structural representation in the locked state of the embodiment of the present invention；

Fig. 4 is the rearview of the door body under state shown in Fig. 3；

Fig. 5 is the door body structural representation in the unlocked state of the embodiment of the present invention；

Fig. 6 is the structural representation of the link gear of the embodiment of the present invention；

Fig. 7 is the structural representation of the link gear of the embodiment of the present invention；

Fig. 8 is the structural representation of the axle sleeve of the embodiment of the present invention；

Fig. 9 is the structural representation of another angle of axle sleeve of the embodiment of the present invention；

Figure 10 is the structural representation of the emergent plectrum of the embodiment of the present invention；

Figure 11 is the structural representation of the Handle axis of the embodiment of the present invention；

Figure 12 is the side view in handle indentation for the link gear of the embodiment of the present invention；

Figure 13 is the profile of Figure 12；

Figure 14 is the side view when handle stretches out for the link gear of the embodiment of the present invention；

Figure 15 is the profile of Figure 14.

Specific embodiment

Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.

As shown in Figures 1 to 7, the handle of safe deposit box automatic telescopic door-opening linkage mechanism in the present embodiment is arranged on condom In the door body of body, this link gear includes handle 1 and is arranged on handle 1 rear portion can be with the Handle axis 2 of handle synchronous axial system, handss The head of handle 2 is in the form of annular discs, and Handle axis 2 activity is passed through the door-plate 3 of condom and is connected with the slide plate positioned at door-plate 3 dorsal part, sliding Plate moves to inside and outside door-plate 3 with the rotation of Handle axis 2.Skateboard is the conventional structure of existing condom, specifically, The rear end of Handle axis 2 be provided with can with the machine-operated gear 13 of Handle axis 2 synchronous axial system, slide plate include total slide plate 14 and after tether and connect Plate 15, total slide plate 14 and after tether fishplate bar 15 and keep with machine-operated gear 13 all the time engaging and make rightabout moving, total slide plate 14 With after tether fishplate bar 15 and be displaced outwardly driving safe bolt 20 to stretch out, conversely, total slide plate 14 and after tether fishplate bar 15 and inwardly move Dynamic drive safe bolt 20 is retracted.In addition, the front of door-plate 3 is provided with the cavity 4 being adapted with handle 1, Handle axis 2 door relatively Plate moves forward to carry fixed handle 1 to stretch out in cavity 4, and Handle axis 2 door-plate relatively is moved rearwards by carry fixed handle 1 to be placed in cavity In 4.

In the present embodiment, it is separately installed with interior shield 17 and handle cover for seat 18, handle cover for seat inside and outside door-plate 3 It is formed with described cavity 4 on 18.In the dorsal part of door-plate 3, first motor switch 8 is installed, total slide plate 14 is provided with first Contact 16, the first contact 16 triggers the first motor switch 8 with the outside side shifting of total slide plate, and the first motor switch 8 is triggered Afterwards, motor 5 rotates forward.Internally on guard shield 17, electric machine support 19 is installed, at the top of electric machine support 19, second motor is installed Switch 9, installs described motor 5 in the side at electric machine support 19 top, gear 6 is arranged on the output shaft of motor 5, props up in motor The inside of frame 19 is provided with axle sleeve 7.As shown in Figure 8 and Figure 9, axle sleeve 7 has the axis hole 74 passing through for Handle axis 2, the top of axle sleeve 7 Portion is provided with tooth-strip part 71 and the second wafer 73, and tooth-strip part 71 is located at gear along the axial direction setting of Handle axis 2, tooth-strip part 71 6 lower section is simultaneously meshed with gear 6, and the second wafer 73 can move forward and backward with axle sleeve 7 and be used for triggering the second motor switch 9, After second motor switch 9 is triggered, motor 5 stops operating.In addition, be provided with electric motor starting on the guidance panel 31 of door body opening Close (not shown), press motor start switch, motor starts to invert.And, with the rotating of motor on-off control motor with And stall is conventional prior, concrete control process is not launched to describe.

As shown in Figure 12 to Figure 15, the operation principle of this handle of safe deposit box automatic telescopic door-opening linkage mechanism and process are: Assume that original state is in the lock state down for condom, that is, safe bolt 20 is protruding makes door-plate 3 pin, and handle 1 It is retracted in cavity 4, now, presses motor start switch, motor 5 starts to invert, by the transmission of gear 6 and tooth-strip part 71, Drive axle sleeve 7 and Handle axis 2 synchronizing moving forward, and then make handle 1 fully extended outside cavity 4, when handle 1 fully extended in After cavity 4, the second motor switch 9 is triggered by the second wafer 73 on axle sleeve 7 and so that motor 5 is stopped operating, and now, door-plate 3 continues Continue for locking-in state.Afterwards, operator's hand rotation handle 1 make total slide plate 14 and after tether fishplate bar 15 and move inward, and simultaneously Driving safe bolt 20 inwardly to retract enables door-plate 3 to be opened, thus smooth opening door-plate 3 is to pick and place article；Pick and place article Afterwards, first rotate backward handle 1 make total slide plate 14 and after tether fishplate bar 15 and be displaced outwardly, and drive safe bolt 20 outside simultaneously Stretch out, after safe bolt 20 is fully extended, the first motor switch 8 is triggered by the first contact 16 on total slide plate 14 and makes electricity Machine 5 rotates forward, and similarly, by the transmission of gear 6 and tooth-strip part 71, drives axle sleeve 7 and Handle axis 2 synchronizing moving backward, And then so that handle 1 is retracted backward and be hidden in cavity 4.

Additionally, this handle of safe deposit box automatic telescopic door-opening linkage mechanism can be met an urgent need handss in the case that also motor breaks down The emergency mechanism that handle 1 stretches out.Specifically, the sidepiece in axle sleeve 7 has radial direction slotted eye 72, and Handle axis 2 are axially across radial direction slotted eye 72 and be formed with limited impression 21 on position corresponding with radial direction slotted eye, emergent plectrum 10 radial direction is plugged in radial direction slotted eye 72 And axial synchronizing moving can be kept with axle sleeve 7 all the time.Under motor normal operating conditions, emergent plectrum 10 is embedded in limited impression In 21 and with Handle axis 2, axle sleeve 7 composition integral piece and can axial synchronizing moving, the state hindering for some reason in motor and cannot rotating Under, emergent plectrum 10 can depart from limited impression 21 after stirring and enable Handle axis 2 axle sleeve 7 and emergent plectrum 10 relatively to make axial direction Mobile.

As shown in Figs. 8 to 11, the side that the emergent plectrum 10 in the present embodiment stretches in radial direction slotted eye 72 has endoporus 101, when emergent plectrum 10 is not struck, the inner end of endoporus 101 is embedded in limited impression 21, and the outer end of endoporus 101 is then Whether plectrum of either meeting an urgent need is struck and is all separated with limited impression 21 all the time, and the outer end of emergent plectrum 10 stretches out in axle sleeve 7. Emergent lock plectrum 11 is matched with emergent plectrum 10, and under motor normal operating conditions, the inner end of endoporus 101 is embedded spacing In groove 21, hinder for some reason in motor and in the state of cannot rotating, emergent lock plectrum 11 can promote plectrum 10 of meeting an urgent need to radial slot Move and make the inner end of endoporus 101 to depart from limited impression 21 in hole 72.In the present embodiment, the lateral surface of emergent plectrum 10 is formed There is the first guiding surface 102 of oblique outer incline from top to bottom, emergent lock plectrum 11 is located at the outside of emergent plectrum and makees up and down Mobile, emergent lock plectrum 11 is formed with, towards the side of emergent plectrum lateral surface, second matching with the first guiding surface 102 Guiding surface 111, promotes emergent plectrum 10 to move inward during emergent lock plectrum 11 moves down.Additionally, emergent lock is dialled Piece 11 also locks 23 and electric magnet 24 cooperating with emergent, and its mounting structure and operation principle are existing conventional techniques, and here is not Reinflated description.

Additionally, being arranged with pretensioned spring 12 in the leading section of Handle axis 2, the front end of Handle axis 2 is formed with radial flange 22, the external diameter of radial flange 22 is more than axis hole 74 aperture of axle sleeve, and the front end of axle sleeve has indent step 75, and Handle axis 2 pass through After the axis hole 74 of axle sleeve, its radial flange 22 is located in indent step 75.The rear end of pretensioned spring 12 is interior with axle sleeve front end Concave station rank 75 is collided, and the front end of pretensioned spring 12 and handle 1 are collided and make handle 1 maintain the trend of forward movement, is answering In the state of anxious plectrum 10 and Handle axis 2 are separated, pretensioned spring 12 driving handle axle 2 and handle 1 synchronizing moving forward.

The foregoing is only the preferred embodiment of the present invention it is noted that for those of ordinary skills, Under the premise of the principle without departing from the present invention, the present invention can be carried out with multiple remodeling or improve, these are regarded as the present invention Protection domain within.

Claims

1. a kind of handle of safe deposit box automatic telescopic door-opening linkage mechanism, including handle (1) be arranged on handle rear portion and can whip The Handle axis (2) of handle synchronous axial system, the activity of described Handle axis (2) pass through condom door-plate (3) and with positioned at door-plate dorsal part Slide plate is connected, and described slide plate moves to inside and outside door-plate with the rotation of Handle axis (2), and the front of described door-plate (3) is provided with The cavity (4) being adapted with described handle (1), described Handle axis (2) door-plate relatively moves forward to carry fixed handle (1) to stretch out in Described cavity (4), described Handle axis (2) door-plate relatively is moved rearwards by be placed in described cavity (4) with fixed handle (1) Interior it is characterised in that: in the dorsal part of described door-plate (3), motor (5) is installed, gear (6) is provided with the output shaft of motor, Axle sleeve (7) is provided with described Handle axis (2), described axle sleeve (7) is had and is meshed with described gear (6) and along setting about The tooth-strip part (71) of the axial direction setting of arbor (2), described link gear also includes can make motor be rotated forward First motor switch (8), leave the motor off second motor switch (9) of rotation and make motor make counter-rotational activate switch, Described the first motor switch (8) can be triggered under safe locking state and so that motor is rotated forward, and and then passes through tooth Wheel (6) and the transmission of tooth-strip part (71) and driving handle (1) are retracted to that described cavity (4) is interior backward, and described electric motor starting is opened Close and be triggered under condom released state and so that motor is rotated backward, and and then the biography by gear (6) and tooth-strip part (71) Dynamic and driving handle (1) forward extends out to described cavity (4) outward, described the second motor switch (9) is fully extended in handle It is triggered in the state of cavity (4) and so that motor (5) is stopped operating；Have a radial direction slotted eye in the sidepiece of described axle sleeve (7) (72), described Handle axis (2) are formed axially across described radial direction slotted eye (72) and on position corresponding with radial direction slotted eye Limited location groove (21), an emergent plectrum (10) is radially plugged in described radial direction slotted eye (72) and can be with described axle sleeve holding shaft To synchronizing moving, under motor normal operating conditions, described emergent plectrum (10) is embedded in described limited impression (21) And with Handle axis (2), axle sleeve (7) composition integral piece and can axial synchronizing moving, the state hindering for some reason in motor and cannot rotating Under, described emergent plectrum (10) can depart from described limited impression (21) after stirring and make Handle axis (2) energy axle sleeve relatively And emergent plectrum (10) moves axially (7).

2. handle of safe deposit box automatic telescopic door-opening linkage mechanism according to claim 1 it is characterised in that: described emergent dial The side that piece (10) stretches in radial direction slotted eye (72) has endoporus (101), and the inner end of described endoporus (101) can be embedded described Limited impression (21) in, the outer end of described endoporus (101) is separated with described limited impression (21) all the time, and, described The outer end of emergent plectrum (10) stretches out in described axle sleeve, and described link gear also includes and described emergent plectrum (10) phase The emergent lock plectrum (11) of cooperation, under motor normal operating conditions, the inner end of described endoporus (101) is embedded in described limit In position groove (21), hinder for some reason in motor and in the state of cannot rotating, described emergent lock plectrum (11) can promote plectrum of meeting an urgent need (10) move into radial direction slotted eye (72) and make the inner end of endoporus (101) depart from described limited impression (21).

3. handle of safe deposit box automatic telescopic door-opening linkage mechanism according to claim 2 it is characterised in that: described emergent dial The lateral surface of piece (10) is formed with first guiding surface (102) of oblique outer incline from top to bottom, described emergent lock plectrum (11) it is located at the outside of emergent plectrum and moves up and down, emergent lock plectrum (11) is formed towards the side of emergent plectrum lateral surface There is the second guiding surface (111) matching with described first guiding surface (102), in described emergent lock plectrum (11) to moving down Described emergent plectrum (10) is promoted to move inward during dynamic.

4. handle of safe deposit box automatic telescopic door-opening linkage mechanism according to claim 1 it is characterised in that: in described handle The leading section of axle (2) is arranged with a pretensioned spring (12), and collided with described axle sleeve in the rear end of described pretensioned spring (12), institute State the trend that the front end of pretensioned spring (12) and described handle (1) are collided and make handle (1) maintain forward movement, described In the state of emergent plectrum (10) and Handle axis (2) are separated, described pretensioned spring (12) promote described Handle axis (2) and Handle (1) synchronizing moving forward.

5. the handle of safe deposit box automatic telescopic door-opening linkage mechanism according to any claim in Claims 1-4, it is special Levy and be: the rear end of described Handle axis (2) is provided with can be with the machine-operated gear (13) of Handle axis (2) synchronous axial system, described cunning Plate include total slide plate (14) and after tether fishplate bar (15), described total slide plate (14) and after tether fishplate bar (15) all the time with described office Gear (13) keeps engaging and make rightabout movement.

6. handle of safe deposit box automatic telescopic door-opening linkage mechanism according to claim 5 it is characterised in that: described first Motor switch (8) is arranged on the dorsal part of door-plate (3), is provided with the first contact (16) on described total slide plate (14), and described One contact (16) triggers described the first motor switch (8) with the outside side shifting of total slide plate.

7. the handle of safe deposit box automatic telescopic door-opening linkage mechanism according to any claim in Claims 1-4, it is special Levy and be: be separately installed with interior shield (17) and handle cover for seat (18) inside and outside described door-plate (3), in described handss Described cavity (4) is formed with handle cover for seat (18), electric machine support (19) is provided with described interior shield (17), described Motor (5) be arranged on described electric machine support (19).

8. handle of safe deposit box automatic telescopic door-opening linkage mechanism according to claim 7 it is characterised in that: described second Motor switch (9) is arranged on described electric machine support (19), and described axle sleeve (7) is provided with the second wafer (73), and described second Contact (73) triggers described the second motor switch (9) with the forward movement of axle sleeve.