CN206553038U - One kind is anti-to take off formula door knife for elevator device - Google Patents

Abstract

The utility model, which is related to one kind, to be prevented taking off formula door knife for elevator device.Existing door lock device is needed by gate come switch lock hook so that gate does not have lock function.The utility model includes door knife assembly, and door knife assembly includes bottom plate, first connecting rod, latch hook and sets lock, and the first connecting rod driven by door machine belt realizes that latch hook takes off switching between station and unblock station anti-by transformational structure.Door machine belt directly links with door knife assembly, prevents gate from, because external force is acted on and opens, also acting as the effect for driving gate and layer door synchronization action, shortening gate and layer door synchro switch time, save space needed for switch gate.Latch hook is improved to by way of door machine belt shipper by the mode of original gate driving switch, and the defect of gate movement can not be limited by being prevented effectively from latch hook, prevents gate from opening and occurring with the situation that moveable lock hook switches to unblock station because external force is acted on.

Description

One kind is anti-to take off formula door knife for elevator device

Technical field

The utility model is related to elevators field, and in particular to a kind of door lock device.

Background technology

In lift product, door knife is one of elevator car door system significant components, and elevator is visited the motion of knife by car door, Coordinate the croquet on layer door, so as to realize the united opening of door lock of elevator unlatching and gate layer door.In the prior art, some electricity The belt drive gate that terraced door knife is present on asynchronous working, i.e. door machine is first turned on, and then gate door knife-band is moved layer door and opened.This Asynchronous door knife is planted to have the drawback that：Due to opening during door lock, gate must be moved first, so gate will be beaten earlier than layer door Open, be later than layer door closing, there is regular hour delay when switch gate is moved, i.e., can cause switch gate time lengthening, reduce Efficiency, also causes gate to open required space and be wider than layer door unlatching space, shaft width is required, in addition, gate is by external force When pushing aside, door lock of elevator can also be opened therewith, cause layer door to be also unlocked so as to lose barrier between car and hoistway, exist Potential safety hazard.

Utility model content

In order to solve the deficiencies in the prior art, the utility model, which provides one kind, to be prevented taking off formula door knife for elevator device, elevator door Lock is directly driven by belt so that gate and layer door synchro switch, had both been shortened the switch gate time, has been saved switch gate space, and had also had It can effectively prevent gate because external force is acted on and opens.

The utility model is accomplished by the following way：One kind is anti-to take off formula door knife for elevator device, including clutch connection gate With layer door door knife assembly, the door knife assembly include with gate link bottom plate, be rotatably connected on bottom plate first connecting rod, The latch hook and the lock on door machine being rotatably connected on bottom plate, the first connecting rod driven by door machine belt pass through a conversion Structure realizes that latch hook switches between the anti-unblock station taken off station and separated with the lock hooked together with the lock matching. Door machine belt is directly linked with door knife assembly, and door knife assembly had both been played to be prevented taking off what is between station and unblock station switched with moveable lock hook Effect, effectively prevents gate from, because external force is acted on and opens, also acting as the effect for driving gate and layer door synchronization action, shortening sedan-chair Door and layer door the synchro switch time, save space needed for switch gate.Latch hook is improved to by the mode of original gate driving switch By way of door machine belt shipper, the defect of gate movement can not be limited by being prevented effectively from latch hook, prevent gate from being acted on because of external force Open and occur with the situation that moveable lock hook switches to unblock station.

Preferably, the transformational structure, which includes latch hook being positioned at, prevents that taking off the anti-of station takes off positioning component, determines latch hook Position is unlocking the unblock positioning component of station and is realizing latch hook in the anti-unlock trigger part taken off and switched between station and unblock station Trigger member is taken off with anti-.Anti- positioning component reconciliation locking bit component of taking off can realize the positioning action to latch hook by door knife assembly. Latch hook is completed by coordinating with unlock trigger part from anti-station of taking off to the action of unblock Switch of working position, and latch hook with anti-by taking off tactile Outbox coordinates to complete from unblock station to the anti-action for taking off Switch of working position.

Preferably, the first connecting rod is T-shaped, including the drive division being vertically arranged and horizontal linkage portion, the latch hook T-shaped, the cross bar first end of the latch hook is provided with latches the coupler body matched with described, and the end of cross bar second passes through the first spring and institute The flexible connection of drive division bottom is stated, coupler body is tangent towards the corresponding binding face of lock and the swing path of coupler body, the latch hook Montant in the middle part of be rotatably connected on by lock shaft on the bottom plate.The driving force of door machine belt is transferred to a knife group by first connecting rod On part.Latch hook action is influenceed by bottom plate and limit shaft are coefficient, under the first spring effect, the end of latch hook cross bar second tool There is the trend towards the activity of first connecting rod vertical part lower end, it is ensured that latch hook cross bar lower surface is fitted with limit shaft all the time.First spring All the time in the state that is stretched, it is ensured that latch hook is all the time by the driving force swung towards unblock station.Coupler body is entered centered on lock shaft Row is swung, and coupler body and the binding face and the swing path of coupler body that latch are tangent, when bottom plate applies level to active force to coupler body, Coupler body and lock between binding face will not precipitation put down to active force be converted into driving coupler body depart from lock non-horizontal to active force, Ensure to hook together stability between coupler body and lock.

Preferably, the anti-positioning component of taking off includes the limit shaft in the middle part of the drive division, the limit shaft leads to Cross curved wall of its side wall with the montant and cross bar joining place close to the first spring side and match conflict, the curved wall is high Set in the lock shaft axis so that latch hook, which is positioned at, to be prevented taking off station, and the limit shaft be arranged in parallel with lock shaft.Limit shaft is pushed Montant causes the coupler body of latch hook swings and is positioned to lock to prevent taking off on station, and now, latch hook is fastened with lock, and latch hook can not band Moveable lock hook transverse shifting, and then cause gate can not drive bottom plate transverse shifting.The curved wall energy of montant and cross bar joining place Matching laminating limit shaft, positioning action is played to limit shaft, is prevented between limit shaft and latch hook because mutually force is slided and influences lock The situation of hook swaying direction occurs.Curved wall is set higher than lock shaft axis, it is ensured that latch hook causes coupler body under limit shaft driving Fall into from top to bottom and prevent taking off station.The limit shaft is be arranged in parallel with lock shaft so that limit shaft side wall can be matched with curved wall Laminating, improves active force transmission stability by way of ensureing contact area.

Preferably, the door knife assembly includes being rotatably connected on second connecting rod on bottom plate and mutual by the second connecting shaft For the first blade and the second blade be arrangeding in parallel, the linkage portion and drive division joining place are rotatably connected on by the first connecting shaft On bottom plate, the linkage portion, the first blade, second connecting rod and the second blade are hinged in polygonal annular from beginning to end successively, the solution Locking bit component includes the croquet with layer door lock interlocking, and first connecting rod drives first blade and the second blade parallel to close up simultaneously Clamp the croquet and realize that latch hook is positioned at unblock station.Because linkage portion and second connecting rod are rotatably connected on bottom plate, make Linkage portion, the first blade, second connecting rod and the second blade link each other, in linkage process, linkage portion and second connecting rod, First blade is parallel each other all the time with the second blade.Drive division moves to side and drives the first blade and the second blade folding When, limit shaft is no longer contradicted on the wall of vertical part side, and the first blade and the second blade move toward one another and are pressed from both sides under first connecting rod driving Hold croquet so that the first blade and the second blade constant gap, latch hook is positioned in unblock station under the effect of unlock trigger part On, now, latch hook departs from latching, and gate can synchro switch motion with layer door.First blade and the second blade are parallel all the time, right Croquet is accurately clamped, and then ensures that layer door lock swings precise match with first connecting rod, effectively the control gate delay opening time, is Open synchronous with gate of layer door provides necessary condition.

Preferably, the linkage portion and second connecting rod are abreast angularly disposed each other, first connecting shaft and second connects Axle vertically projects overlapping and axially in parallel each other, and first connecting shaft is rotatably connected in linkage portion stage casing close to the second blade one Side so that the level of the first blade and the second blade to displacement ratio be 1.5-1.9.Angularly disposed linkage portion is being put When dynamic, its two ends has bigger level to displacement, thus adapts to belt to drive division level to stretching distance and door knife group The cooperation regulation of part on the door between ball clamping distance, and then ensure that the horizontal pull distance of belt meets latch hook unblock and layer door and sedan-chair The constant drive demand that door is opened.Because the croquet on layer door lock is two, wherein, layer door lock is entered centered on the second croquet Row is swung, and the first croquet receives the level of the first blade to thrust and provides driving force for the swing of layer door lock, the first blade and the The level of two blades is arranged in the range of 1.5-1.9 to displacement ratio, has both effectively reduced the second blade to the second croquet Push distance, moreover it is possible to ensure that the level of the first croquet a layer grille body is smoothly swung to thrust by increasing the first blade.

Preferably, the unlock trigger part is a groove bar being arranged on the outside of cross bar the second end lower edge, connect with first The limit shaft that bar is swung slides along cross bar the second end lower edge and is caught in the groove bar, and latch hook, which is swung, causes coupler body and lock level To projection dislocation, realize latch hook from anti-Switch of working position of taking off to unblock station.First connecting rod is under belt effect to the end of cross bar second During swing, limit shaft is slided along cross bar lower surface, and when limit shaft slides into groove bar position, cross bar is made in the first spring With lower so that groove bar is nested with limit shaft, thus latch hook produces swing so that the coupler body in cross bar first end is tilted simultaneously Depart from lock, realize latch hook from anti-station of taking off to unblock Switch of working position.Groove bar is close to cross bar the second end outer end so that the second end The activity spacing that a knife assembly clamps croquet is reserved on the inside of subordinate's edge, it is ensured that door knife assembly clamps croquet and layer door lock is opened Qi Hou, latch hook is then turned on, using limit shaft from curved wall enter groove bar process formation gate open time delay, it is ensured that gate and Layer door synchro switch.

Preferably, the groove bar bottom surface is parallel with second end of cross bar lower edge, the groove bar is close to montant side wall Face is recessed the arc matched with limit shaft surface profile.Limit shaft is slided along the second end of cross bar lower edge, and ensures that latch hook begins Switched eventually with less amplitude of fluctuation in unblock station and anti-take off between station.

Preferably, the anti-trigger member of taking off is fixed on a machine and positioned at montant towards latch hook side, latch hook passes through perpendicular Bar lower sides are contradicted spacing and swung with the anti-trigger member of taking off so that coupler body is overlapping to projection with lock level, realizes lock Hook takes off station from unblock Switch of working position to anti-.Belt drive first connecting rod to cross bar first end swing when, it is anti-on door machine Taking off trigger member can be contradicted on the lower sides of vertical part so that latch hook coupler body is fastened to lower swing and with lock, realizes latch hook from solution Lock station takes off Switch of working position to anti-.

Preferably, the drive division top ends rotate the clamper of connection by one and belt links, the drive division Realized and swung towards the coupler body by the second spring being connected with the bottom plate, the second spring upper end is connected to drive division Top is towards on the wall of coupler body side, and lower end, which is nested with, is connected to one located at bottom plate top towards on the column of coupler body lateral edges.Skin Band is linked by clamper and drive end top ends, and second spring is used to drive the first blade and the second blade dorsad to move, and makes Obtain limit shaft and tend to the movement of montant upper portion side wall.Second spring drives latch hook to take off station to anti-all the time in the state that is stretched The effect of switching, the lower end of second spring is preferably provided at bottom plate and is located at edge of first connecting shaft close to coupler body side, it is ensured that hook Body is swung towards lock.

The beneficial effects of the utility model：Latch hook is improved to open by door machine belt by the mode of original gate driving switch The mode of pass, door machine belt directly links with door knife assembly, and door knife assembly had both played band moveable lock hook and taken off station and unblock work anti- The effect of interdigit switching, the defect of gate movement can not be limited by being prevented effectively from latch hook, prevent gate from being opened and band because external force is acted on The situation that moveable lock hook switches to unblock station occurs, and also acts as the effect for driving gate and layer door synchronization action, shortens gate With layer door the synchro switch time, save switch gate needed for space.

Brief description of the drawings

Fig. 1 is latch hook in positive structure diagram when preventing taking off station and door knife assembly is in open mode：

Fig. 2 is latch hook in backsight structural representation when preventing taking off station and door knife assembly is in open mode：

Fig. 3 is positive structure diagram when latch hook is in unblock station and door knife assembly is in closure state：

Fig. 4 is backsight structural representation when latch hook is in unblock station and door knife assembly is in closure state：

In figure：1st, bottom plate, 2, lock, 3, it is anti-take off trigger member, 4, drive division, 5, linkage portion, 6, cross bar, 7, montant, 8, hook Body, the 9, first spring, 10, limit shaft, 11, second connecting rod, the 12, first blade, the 13, second blade, 14, croquet, 15, groove bar, 16th, clamper, 17, second spring, 18, lock shaft, the 19, first connecting shaft, the 20, second connecting shaft, 21, curved wall.

Embodiment

Substantive distinguishing features of the present utility model are made further with reference to specification drawings and specific embodiments It is bright.

One kind as Figure 1-4 is anti-to take off formula door knife for elevator device, by clutch connection gate and the door knife assembly of layer door Composition, the door knife assembly include with gate link bottom plate 1, be rotatably connected on bottom plate 1 first connecting rod, be rotatably connected on Latch hook on bottom plate 1 and the lock on door machine 22, the first connecting rod driven by door machine belt are real by a transformational structure Existing latch hook switches between the anti-unblock station taken off station and separated with the lock 22 hooked together with the matching of lock 22.

The transformational structure, which includes latch hook being positioned at, prevents that taking off the anti-of station takes off positioning component, latch hook is positioned to unblock work The unblock positioning component of position and realize that latch hook takes off the unlock trigger part switched between station and unblock station and prevent taking off triggering anti- Part 3.

Structure as shown in Figure 1 is illustrated, and is carried out with illustrated orientation in action description, figure, the perspective fashion of croquet 14 Display.Door machine will not change position in the horizontal direction, can provide stable support for belt driving first connecting rod；Latch 22 and anti- Take off trigger member 3 affixed with door machine so that lock 22 and anti-to take off trigger member 3 static upwards in level；First connecting rod, second connecting rod 11 are connected on bottom plate 1 by axis of rotation, and bottom plate 1 and gate are affixed and one act as level to movement, the two ends of the first blade 12 Be hinged respectively with the left end of first connecting rod linkage portion 5 and the left end of second connecting rod 11, the two ends of the second blade 13 respectively with first connecting rod The right-hand member of linkage portion 5 and the right-hand member of second connecting rod 11 are hinged；Croquet 14 and layer door between the first blade 12 and the second blade 13 It is affixed.

When gate and layer door are in closure station, latch hook, which is in, to be prevented taking off station（As shown in Figure 2）, now：Due to One connecting rod can link with belt so that first knife and second knife are in the open mode being located remotely from each other；First spring 9 is in Tension, second spring is in relaxed state；The left side wall on the top of montant 7 is contradicted with limit shaft 10, the right side wall of bottom with It is anti-to take off trigger member 3 and contradict so that latch hook is in anti-to be taken off on station with what lock 22 was hooked together.

When gate and layer door are from closure station to when opening station conversion, this process includes unlocking stage and enabling rank Section.The unlocking stage comprises the following steps action：

1. a top of machine belt drive drive division 4 carries out anticlockwise swing so that first in open mode Door knife and second knife are moved towards, and drive division 4 swings and drives limit shaft 10 to be slided along the left end lower edge of cross bar 6, second spring It is tightened up；

2. limit shaft 10 links with drive division 4 and slides into the lower section of groove bar 15, with the swing of the depth of groove bar 15 formation latch hook Space, latch hook carries out counter clockwise direction swing under the effect of the first spring 9 so that latch hook takes off station and be rocked to unblock station from anti- （As shown in Figure 4）, the first spring 9 is relaxed, and second spring is persistently tensed；First knife and second knife are moved towards and transported Move to the closure state of clamping croquet 14（As shown in Figure 3）, due to the position-limiting action of croquet 14 so that first knife and second Knife is no longer close, and then limits the counter-clockwise swing of first connecting rod.

By above-mentioned steps, three purposes are realized：First, latch hook departs from lock 22；Second, first connecting rod can not be carried out Counter-clockwise swing；3rd, door knife assembly and croquet 14 are affixed and then can synchronization action.

Complete after the unlocking stage, into the stage of enabling：Door machine belt pulls on drive division 4 and is moved to the left, first connecting rod The driving force of belt can be completely transferred on bottom plate 1 and croquet 14 so that gate and layer door are synchronously moved to the left, and then are completed Door opening action.

When gate and layer are from station is opened to during closure station conversion, this process takes off rank including the stage of closing the door with anti- Section.Close the door the stage：Door machine belt pulls drive division 4 to move right, because the holding of limit shaft 10 is on the side wall of groove bar 15, latch hook It is constantly in unblock station so that first connecting rod can not carry out clockwise oscillation, and then gate and layer door are synchronously moved right Dynamic, and then complete action of closing the door, during this, latch hook can carry out level to motion together with gate.

Completion was closed the door after the stage, and then prevented taking off the stage：The bottom of latch hook montant 7 when gate and layer door are moved to closure station Right side wall can contradict and taken off anti-in trigger member 3 so that latch hook carries out clockwise swing centered on the middle part of montant 7, Latch hook is rocked to from unblock station to be prevented taking off station, and coupler body 88 is hooked together with lock 22.Because latch hook carries out clockwise oscillation so that limit Position axle 10 departs from from groove bar 15, and drive division 4 is after limitation swing factor disappears by second spring and belt active force in the same direction Clockwise oscillation is carried out, limit shaft 10 can be slided and contradicted on the left side wall on the top of montant 7 along the left side lower edge of cross bar 6, it is ensured that The latch hook swung centered on the middle part of montant 7 can be positioned at anti-take off on station.In addition, when limit shaft 10 departs from groove bar 15 simultaneously Can be when being swung, the first blade 12 and the second blade 13 also switch to beating of being located remotely from each other from the closure state for clamping croquet 14 Open state.

When gate and layer door are in closure state, latch hook, which is in, to be prevented taking off station.When user enters in car to gate During row unnormal unlocking, on the one hand, can not go to contradict latch hook vertical part by first connecting rod with the gate for opening active force to the right Left side wall, on the other hand, the active force to the right that gate has can be transferred to latch hook by bottom plate 1, but latch hook is using on the right side of it Coupler body 88 hooks together lock 22, and the gate for being can not be opened, in summary, realizes that gate is anti-and takes off function.

In practical operation, the first connecting rod is T-shaped, including the drive division 4 being vertically arranged and horizontal linkage portion 5, institute State that latch hook is T-shaped, the first end of cross bar 6 of the latch hook is provided with the coupler bodies 8 matched with the lock 2, the end of cross bar 6 second passes through the One spring 9 is flexibly connected with the bottom of drive division 4, coupler body 8 towards lock 2 corresponding binding face and coupler body 8 swing road Footpath is tangent, and the middle part of montant 7 of the latch hook is rotatably connected on the bottom plate 1 by lock shaft 18.Cross bar first end is diagram Right-hand member, the second end is the left end of diagram.First connecting rod and latch hook are integral piece, both facilitate processing, also with preferable structure Intensity.First spring 9 has the effect for driving latch hook to be swung to unblock station.First connecting rod passes through drive division 4 and linkage portion 5 Junction is rotatably connected on bottom plate 1.

In practical operation, the anti-positioning component of taking off includes the limit shaft 10 located at the middle part of drive division 4, the limit Curved wall 21 of the position axle 10 by its side wall with the montant 7 and the joining place of cross bar 6 close to the side of the first spring 9 matches conflict, The curved wall 21 is set higher than the axis of lock shaft 18 so that latch hook, which is positioned at, to be prevented taking off station, the limit shaft and lock shaft 18 be arranged in parallel.In actual use, when the limit shaft 10 is caught in groove bar 15, the first blade 12 and the second blade 13 are in fortune Move to the closure state of clamping croquet 14, limit shaft 10 and groove bar are realized by adjusting the position of groove bar 15 or the size of croquet 14 15th, action is matched between door knife assembly and croquet 14.It is neighbouring with curved wall that the curved wall 21 includes the respective side wall of montant 7 Straight line portion and the respective side wall of cross bar 6 and the neighbouring straight line portion of curved wall.

In practical operation, the door knife assembly includes the second company being rotatably connected on by the second connecting shaft 20 on bottom plate 1 Bar 11 and the first blade 12 and the second blade 13 be arrangeding in parallel each other, the linkage portion 5 and drive division joining place pass through One connecting shaft 19 is rotatably connected on bottom plate 1, and the linkage portion 5, the first blade 12, the blade 13 of second connecting rod 11 and second are successively Head and the tail are hinged in polygonal annular, and the unblock positioning component includes the croquet 14 with layer door lock interlocking, and first connecting rod driving is described First blade 12 is parallel with the second blade 13 to be closed up and clamps the croquet 14 and realize that latch hook is positioned at unblock station.Linkage portion 5, First blade 12, the blade 13 of second connecting rod 11 and second be hinged from beginning to end successively and formed can deformation diamond structure, it is convenient will The level of belt is converted into chucking power to active force.The opposite edge of first blade 12 and the second blade 13 is used to clamp croquet 14, in action, relative slip can occur with croquet 14, to realize the purpose of fastening clamp.

In practical operation, the linkage portion and second connecting rod 11 are abreast angularly disposed each other, first connecting shaft 19 Vertically projected with the second connecting shaft 20 overlapping and axially in parallel each other, first connecting shaft 19 is rotatably connected and leaned in linkage portion stage casing Nearly second blade side so that the level of the first blade and the second blade to displacement ratio be 1.5-1.9.Preferred scheme is The level of one blade and the second blade to displacement ratio be 1.7 so that distance is in 46mm- between first knife and second knife Switch between 73mm, realize that layer door lock switches between lock-out state and released state by clamping croquet.In addition, first blade It can be adjusted, in adjustment, be connected by changing first according to croquet structure to displacement ratio with the level of the second blade The particular location of the connecting shaft 20 of axle 19 and second respectively in linkage portion and second connecting rod is adjusted to level to displacement ratio, To realize croquet action and gate, layer door switch co-operating.In order to match belt level to displacement and blade assembly water Put down to push croquet distance, can by adjust the angle between linkage portion and drive division realize, when belt water move flat it is default Distance and blade assembly can not complete push croquet task when, adjustment linkage portion angle simultaneously tend to be vertically arranged so that linkage portion length Angle becomes smaller between direction and vertical line, and the arcuate oscillating motion displacement of linkage portion end is more converted into level to displacement, conversely, Then adjust linkage portion angle and tend to level, be regarded as specific embodiment of the utility model.

In practical operation, the unlock trigger part is a groove bar 15 being arranged on the outside of the second end lower edge of cross bar 6, with The limit shaft 10 that first connecting rod is swung slides along the second end lower edge of cross bar 6 and is caught in the groove bar 15, and latch hook, which is swung, causes hook Body 8 misplaces with 2 levels of lock to projection, realizes latch hook from anti-Switch of working position of taking off to unblock station.The groove bar bottom surface with it is described The second end of cross bar lower edge is parallel, and the groove bar is recessed the arc matched with limit shaft surface profile close to montant side wall Shape, is right-angle transition between groove bar side wall and cross bar the second end lower edge medial surface, and limit shaft can more easily fall into groove bar, but from Groove bar is moved to curved wall 21 will be more difficult.

In practical operation, the anti-trigger member 3 of taking off is fixed on a machine and is located at montant 7 towards latch hook side, latch hook Contradict spacing and swing with the anti-trigger member 3 of taking off by the lower sides of montant 7 so that coupler body 8 is handed over 2 levels of lock to projection It is folded, realize that latch hook takes off station from unblock Switch of working position to anti-.Anti- trigger member 3 of taking off is located on the mobile route of the bottom of latch hook montant 7, After ensuring that gate and layer door are closed, latch hook can be contradicted by its lower sides of montant 7 and taken off anti-in trigger member 3, in latch hook montant 7 Portion moves right with bottom plate 1, and driving latch hook carries out clockwise swing.

In practical operation, the top ends of drive division 4 rotate the clamper 16 of connection by one and belt links, described Drive division 4 realized by the second spring 17 being connected with the bottom plate 1 and swung towards the coupler body 8, the second spring upper end Drive division top is connected to towards on the side wall of coupler body 8, lower end, which is nested with, is connected to one located at bottom plate top towards the side of coupler body 8 On the column of edge.Clamper 16 ensures that belt links with drive division 4, plays two effects：Effect one, belt drive drive division 4 It is mobile；Effect two, belt limitation drive division 4 is moved.It is regarded as specific embodiment of the utility model.

Claims (9)

1. one kind is anti-to take off formula door knife for elevator device, include the door knife assembly of clutch connection gate and layer door, it is characterised in that institute State the bottom plate that a knife assembly includes linking with gate（1）, be rotatably connected on bottom plate（1）On first connecting rod, be rotatably connected on bottom Plate（1）On latch hook and the lock on door machine（2）, passed through a transformational structure by the first connecting rod of door machine belt driving real Existing latch hook with the lock（2）Match hook together it is anti-take off station and with the lock（2）Switch between the unblock station of separation, The transformational structure includes latch hook being positioned at the anti-anti- unblock taken off positioning component, latch hook is positioned to unblock station for taking off station Positioning component and realize that latch hook takes off the unlock trigger part that switches between station and unblock station and anti-take off trigger member anti-（3）.

2. one kind according to claim 1 is anti-to take off formula door knife for elevator device, it is characterised in that the first connecting rod is in T Shape, including the drive division being vertically arranged（4）And horizontal linkage portion（5）, the latch hook is T-shaped, the cross bar of the latch hook（6）First End is provided with and the lock（2）The coupler body of matching（8）, cross bar（6）Second end passes through the first spring（9）With the drive division（4） Bottom is flexibly connected, coupler body（8）Towards lock（2）Corresponding binding face and coupler body（8）Swing path it is tangent, the latch hook Montant（7）Middle part passes through lock shaft（18）It is rotatably connected on the bottom plate（1）On.

3. one kind according to claim 2 is anti-to take off formula door knife for elevator device, it is characterised in that described to prevent taking off positioning component Including located at the drive division（4）The limit shaft at middle part（10）, the limit shaft（10）Pass through its side wall and the montant（7）With Cross bar（6）Joining place is close to the first spring（9）The curved wall of side（21）Matching is contradicted, the curved wall（21）Higher than described Lock shaft（18）Axis is set so that latch hook, which is positioned at, to be prevented taking off station, the limit shaft and lock shaft（18）It is arranged in parallel.

4. one kind according to claim 2 is anti-to take off formula door knife for elevator device, it is characterised in that the door knife assembly includes Pass through the second connecting shaft（20）It is rotatably connected on bottom plate（1）On second connecting rod（11）And the first blade be arrangeding in parallel each other （12）With the second blade（13）, the linkage portion（5）Pass through the first connecting shaft with drive division joining place（19）It is rotatably connected on bottom plate （1）On, the linkage portion（5）, the first blade（12）, second connecting rod（11）And second blade（13）It is hinged from beginning to end successively in many Side annular, the unblock positioning component includes the croquet with layer door lock interlocking（14）, first connecting rod driving first blade （12）With the second blade（13）It is parallel to close up and clamp the croquet（14）Realize that latch hook is positioned at unblock station.

5. one kind according to claim 4 is anti-to take off formula door knife for elevator device, it is characterised in that the linkage portion and second Connecting rod（11）It is abreast angularly disposed each other, first connecting shaft（19）With the second connecting shaft（20）Vertically project overlapping and axle each other To parallel, first connecting shaft（19）It is rotatably connected in linkage portion stage casing close to the second blade（13）Side so that the first knife Piece（12）With the second blade（13）Level to displacement ratio be 1.5-1.9.

6. a kind of anti-formula door knife for elevator device is taken off according to claim 3, it is characterised in that the unlock trigger part is One is arranged on cross bar（6）Groove bar on the outside of the second end lower edge（15）, the limit shaft swung with first connecting rod（10）Along cross bar（6） The second end lower edge slides and is caught in the groove bar（15）, latch hook, which is swung, causes coupler body（8）With lock（2）Level is wrong to projection Position, realizes latch hook from anti-Switch of working position of taking off to unblock station.

7. one kind according to claim 6 is anti-to take off formula door knife for elevator device, it is characterised in that the groove bar bottom surface and institute State that the second end of cross bar lower edge is parallel, the groove bar is recessed the arc matched with limit shaft surface profile close to montant side wall Shape.

8. one kind according to claim 2 is anti-to take off formula door knife for elevator device, it is characterised in that described to prevent taking off trigger member （3）It is fixed on a machine and positioned at montant（7）Towards latch hook side, latch hook passes through montant（7）Lower sides are prevented taking off tactile with described Outbox（3）Contradict spacing and swing so that coupler body（8）With lock（2）Level is overlapping to projection, realizes that latch hook is cut from unblock station Shift to and prevent taking off station.

9. one kind according to claim 2 is anti-to take off formula door knife for elevator device, it is characterised in that the drive division（4）Top End passes through a clamper for rotating connection（16）Linked with belt, the drive division（4）By with the bottom plate（1）Connection Second spring（17）Realize towards the coupler body（8）Swing, the second spring upper end is connected to drive division top towards coupler body （8）On the wall of side, lower end, which is nested with, is connected to one located at bottom plate top towards coupler body（8）On the column of lateral edges.