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CN105800436A - Integrated car door lock asynchronous door vane device - Google Patents

Integrated car door lock asynchronous door vane device Download PDF

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Publication number
CN105800436A
CN105800436A CN201610309260.6A CN201610309260A CN105800436A CN 105800436 A CN105800436 A CN 105800436A CN 201610309260 A CN201610309260 A CN 201610309260A CN 105800436 A CN105800436 A CN 105800436A
Authority
CN
China
Prior art keywords
latch hook
door lock
unlocking apparatus
unlocking
door
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610309260.6A
Other languages
Chinese (zh)
Inventor
励海云
张向伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGBO SHENLING LIFT ACCESSORIES CO Ltd
Original Assignee
NINGBO SHENLING LIFT ACCESSORIES CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NINGBO SHENLING LIFT ACCESSORIES CO Ltd filed Critical NINGBO SHENLING LIFT ACCESSORIES CO Ltd
Priority to CN201610309260.6A priority Critical patent/CN105800436A/en
Publication of CN105800436A publication Critical patent/CN105800436A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02Door or gate operation
    • B66B13/14Control systems or devices
    • B66B13/16Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
    • B66B13/18Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02Door or gate operation
    • B66B13/06Door or gate operation of sliding doors
    • B66B13/08Door or gate operation of sliding doors guided for horizontal movement

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Door Apparatuses (AREA)

Abstract

The invention relates to an integrated car door lock asynchronous door vane device, and belongs to the field of elevator car door locks. According to the integrated car door lock asynchronous door vane device, a door vane and a car door lock are integrated together, the structural design is novel, the motion process is concise and clear, installation and debugging are convenient, the safety performance is high, and meanwhile the new national standard requirements can be met. According to the technical scheme, a left unlocking device and a right unlocking device which are matched mutually to act on a door ball are installed on a door vane base plate, driving levers used for unlocking are fixed to the left unlocking device and the right unlocking device, and a rotatable lock hook is installed on the door vane base plate. Locking and unlocking with the lock hook fixed to a door machine body can be achieved through movement of the left unlocking device and the right unlocking device in the horizontal direction.

Description

The asynchronous door lock device of integrated car door lock
Technical field:
The invention belongs to elevator cage door lock field, particularly relate to the asynchronous door lock device of integrated car door lock.
Background technology:
China's GB specifies: the horizontal range at the edge, nearest doorway of elevator hoistways inner surface and car sill, car door framework or sliding door not should be greater than 0.15m.If car can only be opened in the district of unblanking of floor door equipped with the door of mechanical interlocking, and gate locking has and meets necessarily required electric safety device and confirm, then above-mentioned spacing is unrestricted.The Standard of new revision: after car leaves onlocking zone, should have a device to prevent gate to be accidentally opened more than 50mm, and stop position can bear the power of 1000N.
In order to meet requirement above, it is usually and increases protecting wall at hoistway inner surface or independent car door lock is installed, but the cost installing protecting wall is higher and long in time limit, and independent car door lock needs to install at every layer to unlock blade, need every layer of blade is debugged, when floor is too high, precision is difficult to ensure that and the probability that breaks down is very big.
In existing technology, door cutter and door lock are independently arranged, and debugging efficiency is low, and often break down.Existing patented technology, also there are a cutter and the integrated structure of car door lock, a kind of elevator cage door lock such as the invention of open application number 201010120775.4, when layer door onlocking zone, baffle plate and car door lock are not interfered, and when elevator is positioned at the non-onlocking zone of layer door, now baffle plate and latch hook interfere, it is impossible to open gate.In addition, some integrated car door locks adopt electromagnetic principle, could realize latch hook and open when only charged, and reliability is low.Additionally also have and adopt synchronous door knife structure, the door machine structure of synchronous door knife is extremely complex, it is also required to increase simultaneously and controls device control door cutter, fault rate is high, add cost of manufacture, owing to synchronous door knife opposite house cutter installation site requires very accurate, adding installation difficulty, reliability is difficult to be guaranteed.
Summary of the invention:
The present invention overcomes the deficiency that prior art exists, solve above-mentioned technical problem, aim to provide the asynchronous door lock device of integrated car door lock, door cutter and car door lock are integrated together by the asynchronous door lock device of integrated car door lock of the present invention, novel in structural design, motor process is short and sweet, and installation and debugging are convenient, security performance is high, disclosure satisfy that the requirement of new national standard simultaneously.
For solving above-mentioned technical problem, the technical solution used in the present invention is: the asynchronous door lock device of integrated car door lock, door cutter base plate is provided with the left unlocking apparatus and right unlocking apparatus acting on croquet that cooperate, and left unlocking apparatus and right unlocking apparatus are respectively fixed with the driving lever for unlocking, on door cutter base plate, peace turns rotating latch hook, can realize open locking with being fixed on a latch hook for machine body by the movement of left unlocking apparatus and right unlocking apparatus horizontal direction.
Further, when normal release, door cutter base plate moves, right unlocking apparatus collision layer croquet, continues to move to, the movement of right unlocking apparatus horizontal direction and croquet effect, make the unblock driving lever and the latch hook effect that are fixed on right unlocking apparatus, it is achieved unlock, when being parked in layer door region, left unlocking apparatus equally exists the movement of horizontal direction under active force so that the unblock driving lever being fixed on left unlocking apparatus realizes unlocking with latch hook interaction.
Further, described left unlocking apparatus includes side and operates on sheet, operate on the both sides up and down of sheet and be articulated and connected each through connecting rod and door cutter base plate in side, operate on and be mounted on left swing arm component on sheet in side above two connecting rods, left swing arm component offers arcuate groove, operating on sheet and be connected and the two junction is provided with torsion spring in one end of left swing arm component with side, the other end is connected with movable blades assembly B, and movable blades assembly B is arranged to the left driving lever that latch hook unlocks.
Further, operate on and be provided with blade extension spring between sheet and door cutter base plate in described side.
Further, described right unlocking apparatus includes movable blades assembly A, movable blades assembly A is connected with door cutter base plate by being arranged on the right swing arm assembly of upper and lower both sides, and the left and right sides of right swing arm assembly is provided with spacer pin, and movable blades assembly A is provided with the right driving lever unlocked for latch hook.
Further, described latch hook includes latch hook substrate, and latch hook substrate is preset with the installing hole for installing latch hook rotating shaft, and the latch hook substrate at installing hole two ends is provided with the unblock inclined-plane contacted with left driving lever and right driving lever, and the end of latch hook substrate is preset with cord hole.
Further, described cord hole is installed with the steel wire rope for unlocking.
Further, the end of described latch hook substrate is provided with return locking device, described return locking device includes the fixing seat being fixedly mounted on a cutter base plate, fixing seat is provided with guide post, the guide post described latch hook substrate of traverse, being set with block on fixing guide post between seat and latch hook substrate, the guide post of latch hook surface is set with stage clip, the top of stage clip is fixing on the guide bar by spring cup.
The present invention compared with prior art has following advantage: car door lock and asynchronous door cutter are integrated together by the present invention, utilize left unlocking apparatus and the movement of right unlocking apparatus horizontal direction, making to be arranged on driving lever on unlocking apparatus promotes latch hook to rotate, it is achieved latch hook and snap close unlock.Whole apparatus structure is simple, and manufacturing process is simple, and maintenance and inspection are convenient, and cost is low, and in flat bed region, no matter whether elevator has electricity, and in sedan-chair, personnel can open gate in car, meets the unlatching requirement to car door lock in the GB of new revision.
Accompanying drawing illustrates:
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Fig. 1 is the main TV structure schematic diagram of the present invention.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Fig. 3 is the partial enlarged drawing at B place in Fig. 1.
Fig. 4 is the structural representation of latch hook.
Fig. 5 is the structural representation of return locking device.
In figure: 1 is door cutter base plate, 2 is croquet, 3 is left unlocking apparatus, 31 operate on sheet for side, 32 is connecting rod, 33 is movable blades assembly B, 34 is torsion spring, 35 is left driving lever, 36 is blade extension spring, 37 is left swing arm component, 38 is arcuate groove, 4 is right unlocking apparatus, 41 is movable blades assembly A, 42 is right swing arm assembly, 43 is right driving lever, 44 is spacer pin, 5 is latch hook rotating shaft, 6 is latch hook, 61 is latch hook substrate, 62 is installing hole, 63 for unlocking inclined-plane, 64 is cord hole, 7 is return locking device, 71 is fixing seat, 72 is guide post, 73 is block, 74 is stage clip, 75 is spring cup, 8 is steel wire rope.
Detailed description of the invention:
Understandable for enabling the purpose of the present invention, feature and advantage to become apparent from, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Refer to the schematic diagram of a kind of detailed description of the invention that Fig. 1-Fig. 5, Fig. 1 are the asynchronous door lock device of integrated car door lock provided by the present invention.
In this kind of detailed description of the invention, the asynchronous door lock device of integrated car door lock of the present invention, door cutter base plate 1 is provided with the left unlocking apparatus 3 and right unlocking apparatus 4 acting on croquet 2 that cooperate, and left unlocking apparatus 3 and right unlocking apparatus 4 are respectively fixed with the driving lever for unlocking, on door cutter base plate 1, peace turns rotating latch hook 6, can realize open locking with being fixed on a latch hook for machine body 6 by the movement of left unlocking apparatus 3 and right unlocking apparatus 4 horizontal direction.
The operation principle of the present invention is when normal release, door cutter base plate 1 moves, right unlocking apparatus 4 contact layer croquet, continue to move to, layer door lock hook 6 lifts, now right unlocking apparatus 4 continues action, the movement of right unlocking apparatus 4 horizontal direction and croquet 2 act on, the unblock driving lever being fixed on right unlocking apparatus 4 and latch hook 6 are acted on, realize unlocking, when being parked in layer door region, left unlocking apparatus 3 moves in a horizontal manner equally under active force so that the unblock driving lever being fixed on left unlocking apparatus 3 realizes unlocking with latch hook 6 interaction.
The present invention is distinctive in that with prior art is topmost, and existing door lock device unlocks major part and adopts connecting rod 32 structure action to unlock, and the movement of the horizontal direction of the left unlocking apparatus 3 that the present invention utilizes and right unlocking apparatus 4 realizes unlocking.Door cutter and car door lock are integrated together by this structure, simple in construction, and installation and debugging are very convenient, it is possible to effectively erection & lift efficiency, reduce the generation of fault.
Process is not particularly limited the link gear of left unlocking apparatus 3 above, realizes left unlocking apparatus 3 and right unlocking apparatus 4 can produce the movement of horizontal direction as long as disclosure satisfy that.
nullProcess is realized in order to what more specifically describe the present invention,As shown in Fig. 2-Fig. 3,On the basis of above-described embodiment,In the another kind of detailed description of the invention of the present invention,Described left unlocking apparatus 3 includes side and operates on sheet 31,Operate on the both sides up and down of sheet 31 and be articulated and connected each through connecting rod 32 and door cutter base plate 1 in side,Operate on and be mounted on left swing arm component 37 on sheet 31 in side above two connecting rods 32,Left swing arm component 37 offers arcuate groove 38,Operate on sheet 31 and be connected and the two junction is provided with torsion spring 34 in one end of left swing arm component 37 with side,The effect of torsion spring 34 is resistant to gravity,Prevent blade from falling when installing,Also there is certain reset function simultaneously,The other end of left swing arm component 37 is connected with movable blades assembly B33,Movable blades assembly B33 is arranged to the left driving lever 35 that latch hook 6 unlocks.
Arcuate groove 38 on left swing arm component 37, when croquet 2 reversely promotes door cutter to move time, swing arm unit horizontally rotates about 5mm, drives the left driving lever 35 on door cutter to contact with latch hook 6 so that it is to open.
Operate on and be provided with blade extension spring 36 between sheet 31 and door cutter base plate 1 in described side.The effect of blade extension spring 36 is to reset, when side operate on sheet 31 move a certain distance time, extension spring can extend, in time closing the door, extension spring makes side operate on sheet 31 by active force to reset.
Described right unlocking apparatus 4 includes movable blades assembly A41, movable blades assembly A41 is connected with door cutter base plate 1 by being arranged on the right swing arm assembly 42 of upper and lower both sides, the left and right sides of right swing arm assembly 42 is provided with spacer pin 44, and movable blades assembly A41 is provided with the right driving lever 43 unlocked for latch hook 6.The effect of spacer pin 44 is the rotation of restriction right swing arm assembly 42, when right swing arm assembly 42 rotates about 5mm time, will touch spacer pin 44, and latch hook 6 stirred by the right driving lever 43 on movable blades assembly A41 now so that it is open.
The work process of the present invention is: occasion during elevator normal switch: when gate is opened, door lock device is moved to the left, movable blades assembly A41 contact layer croquet, continue to move to, layer door lock hook 6 lifts, and now, right swing arm assembly 42 rotates, movable blades assembly A41 drives right driving lever 43 to interact with latch hook 6, makes latch hook 6 lift.Movable blades assembly B33 rotates under the effect of cam, makes movable blades assembly B33 produce horizontal direction movement to the right, clamps croquet 2 with blade assembly A, be moved to the left together, it is achieved door opening action.
After being parked in layer door region after elevator faults, promotion gate can also be led in car so that door cutter moves, interact with croquet 2, complete the action unblanked.Outside car, first opening a layer door gear by triangular key, then pass through and take off door and make croquet 2 contact with door cutter, now swing arm rotates, and movable blades assembly B33 drives left driving lever 35, and latch hook 6 contact surface effect, makes latch hook 6 lift, completes gate unblock.
It addition, in order to realize elevator faults not unblock when layer door region, the cord hole 64 of latch hook 6 is installed with the steel wire rope 8 for unlocking.When elevator faults is not when layer door region, outside the Room, rescue personnel can open layer door by triangular key, and elevator moves to suitable position, pulls unblock steel wire rope 8, it is achieved car door lock unlocks.
On the basis of above-described embodiment, as shown in Figure 5, in the another kind of detailed description of the invention of the present invention, the end of described latch hook substrate 61 is provided with return locking device 7, described return locking device 7 includes the fixing seat 71 being fixedly mounted on a cutter base plate 1, fixing seat 71 is provided with guide post 72, the guide post 72 described latch hook substrate 61 of traverse, fixing guide post 72 between seat 71 and latch hook substrate 61 is set with block 73, being set with stage clip 74 on guide post 72 above latch hook substrate 61, the top of stage clip 74 is fixed on guide post 72 by spring cup 75.
Make latch hook 6 when gate is closed by return locking device 7, all the time it is connected with snap close, when latch hook 6 rotates counterclockwise, latch hook substrate 61 can move up along guide post 72, thus compression press spring 74 is until latch hook 6 unlocks with snap close, when latch hook 6 does not have active force, stage clip 74 can compress downwards latch hook substrate 61, it is made to be connected with snap close all the time, it is ensured that gate is closed.
In sum, the asynchronous door lock device simple in construction of integrated car door lock of the present invention, manufacturing process is simple, maintenance and inspection are convenient, cost is low, and in flat bed region, no matter whether elevator has electricity, in sedan-chair, personnel can open gate in car, meets the unlatching requirement to car door lock in the GB of new revision.
Above in conjunction with accompanying drawing, embodiments of the invention are explained in detail, but the present invention is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, it is also possible under the premise without departing from present inventive concept, make various change.

Claims (8)

1. the asynchronous door lock device of integrated car door lock, it is characterized in that: left unlocking apparatus (3) that being provided with on door cutter base plate (1) cooperates acts on croquet (2) and right unlocking apparatus (4), and left unlocking apparatus (3) and right unlocking apparatus (4) are respectively fixed with the driving lever for unlocking, the upper peace of door cutter base plate (1) turns rotating latch hook (6), can realize open locking with being fixed on a latch hook for machine body (6) by the movement of left unlocking apparatus (3) and right unlocking apparatus (4) horizontal direction.
2. the asynchronous door lock device of integrated car door lock according to claim 1, it is characterized in that: when normal release, door cutter base plate (1) is mobile, right unlocking apparatus (4) collision layer croquet, continue to move to, the movement of right unlocking apparatus (4) horizontal direction and croquet (2) effect, make the unblock driving lever and latch hook (6) effect that are fixed on right unlocking apparatus (4), realize unlocking, when being parked in layer door region, left unlocking apparatus (3) equally exists the movement of horizontal direction under active force, the unblock driving lever being fixed on left unlocking apparatus (3) and latch hook (6) are interacted realize unlocking.
3. the asynchronous door lock device of integrated car door lock according to claim 1, it is characterized in that: described left unlocking apparatus (3) includes side and operates on sheet (31), operate on the both sides up and down of sheet (31) and be articulated and connected each through connecting rod (32) and door cutter base plate (1) in side, operate on and be mounted on left swing arm component (37) on sheet (31) in the side of two connecting rods (32) top, left swing arm component (37) offers arcuate groove (38), operate on sheet (31) and be connected and the two junction is provided with torsion spring (34) in one end of left swing arm component (37) with side, the other end is connected with movable blades assembly B (33), movable blades assembly B (33) is arranged to the left driving lever (35) that latch hook (6) unlocks.
4. the asynchronous door lock device of integrated car door lock according to claim 3, it is characterised in that: operate on and be provided with blade extension spring (36) between sheet (31) and door cutter base plate (1) in described side.
5. the asynchronous door lock device of integrated car door lock according to claim 4, it is characterized in that: described right unlocking apparatus (4) includes movable blades assembly A (41), movable blades assembly A (41) is connected with door cutter base plate (1) by being arranged on the right swing arm assembly (42) of upper and lower both sides, the left and right sides of right swing arm assembly (42) is provided with spacer pin (44), and movable blades assembly A (41) is provided with the right driving lever (43) unlocked for latch hook (6).
6. the asynchronous door lock device of integrated car door lock according to claim 1 or 5, it is characterized in that: described latch hook (6) includes latch hook substrate (61), latch hook substrate (61) is preset with the installing hole (62) for installing latch hook rotating shaft (5), being provided with the unblock inclined-plane (63) contacted with left driving lever (35) and right driving lever (43) on the latch hook substrate (61) at installing hole (62) two ends, the end of latch hook substrate (61) is preset with cord hole (64).
7. the asynchronous door lock device of integrated car door lock according to claim 6, it is characterised in that: described cord hole (64) is installed with the steel wire rope (8) for unlocking.
8. the asynchronous door lock device of integrated car door lock according to claim 8, it is characterized in that: the end of described latch hook substrate (61) is provided with return locking device (7), described return locking device (7) includes the fixing seat (71) being fixedly mounted on a cutter base plate (1), fixing seat (71) is provided with guide post (72), guide post (72) the described latch hook substrate (61) of traverse, fixing guide post (72) between seat (71) and latch hook substrate (61) is set with block (73), the guide post (72) of latch hook substrate (61) top is set with stage clip (74), the top of stage clip (74) is fixed on guide post (72) by spring cup (75).
CN201610309260.6A 2016-05-11 2016-05-11 Integrated car door lock asynchronous door vane device Pending CN105800436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610309260.6A CN105800436A (en) 2016-05-11 2016-05-11 Integrated car door lock asynchronous door vane device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610309260.6A CN105800436A (en) 2016-05-11 2016-05-11 Integrated car door lock asynchronous door vane device

Publications (1)

Publication Number Publication Date
CN105800436A true CN105800436A (en) 2016-07-27

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CN201610309260.6A Pending CN105800436A (en) 2016-05-11 2016-05-11 Integrated car door lock asynchronous door vane device

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106081818A (en) * 2016-08-09 2016-11-09 日立电梯(中国)有限公司 Elevator car door locking device and elevator
CN106185571A (en) * 2016-08-31 2016-12-07 宁波申菱电梯配件有限公司 A kind of asynchronous door lock device of integrated car door lock
CN108529405A (en) * 2018-06-07 2018-09-14 林肯电梯(中国)有限公司 A kind of car door emergency unlocking device using torsionspring
CN114715759A (en) * 2022-04-15 2022-07-08 日立电梯(中国)有限公司 Asynchronous door knife integrated car door lock and elevator

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08143254A (en) * 1994-11-25 1996-06-04 Mitsubishi Denki Bill Techno Service Kk Door close confirmation device for elevator car door
WO2008078135A1 (en) * 2006-12-26 2008-07-03 Otis Elevator Company Car door locking device
CN103723605A (en) * 2013-09-23 2014-04-16 西子奥的斯电梯有限公司 Asynchronous elevator retiring cam integrated with car door lock
CN104773638A (en) * 2014-01-15 2015-07-15 上海三菱电梯有限公司 Asynchronous door knife having car door lock, elevator door motor and car door system
CN204727397U (en) * 2015-03-26 2015-10-28 广州广日电梯工业有限公司 A kind of asynchronous door knife structure of elevator cage door
CN105438941A (en) * 2015-12-25 2016-03-30 林肯电梯(中国)有限公司 Door knife mechanism
CN205727397U (en) * 2016-05-17 2016-11-30 南安市品龙新材料科技有限公司 A kind of gardens automatic sprinkling system of band rain collector

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08143254A (en) * 1994-11-25 1996-06-04 Mitsubishi Denki Bill Techno Service Kk Door close confirmation device for elevator car door
WO2008078135A1 (en) * 2006-12-26 2008-07-03 Otis Elevator Company Car door locking device
CN103723605A (en) * 2013-09-23 2014-04-16 西子奥的斯电梯有限公司 Asynchronous elevator retiring cam integrated with car door lock
CN104773638A (en) * 2014-01-15 2015-07-15 上海三菱电梯有限公司 Asynchronous door knife having car door lock, elevator door motor and car door system
CN204727397U (en) * 2015-03-26 2015-10-28 广州广日电梯工业有限公司 A kind of asynchronous door knife structure of elevator cage door
CN105438941A (en) * 2015-12-25 2016-03-30 林肯电梯(中国)有限公司 Door knife mechanism
CN205727397U (en) * 2016-05-17 2016-11-30 南安市品龙新材料科技有限公司 A kind of gardens automatic sprinkling system of band rain collector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106081818A (en) * 2016-08-09 2016-11-09 日立电梯(中国)有限公司 Elevator car door locking device and elevator
CN106185571A (en) * 2016-08-31 2016-12-07 宁波申菱电梯配件有限公司 A kind of asynchronous door lock device of integrated car door lock
CN108529405A (en) * 2018-06-07 2018-09-14 林肯电梯(中国)有限公司 A kind of car door emergency unlocking device using torsionspring
CN114715759A (en) * 2022-04-15 2022-07-08 日立电梯(中国)有限公司 Asynchronous door knife integrated car door lock and elevator
CN114715759B (en) * 2022-04-15 2024-12-20 日立电梯(中国)有限公司 Asynchronous door knife integrated car door lock and elevator

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Application publication date: 20160727