CN203833441U - Synchronous door knife device with car door lock for elevator - Google Patents
Synchronous door knife device with car door lock for elevator Download PDFInfo
- Publication number
- CN203833441U CN203833441U CN201420145370.XU CN201420145370U CN203833441U CN 203833441 U CN203833441 U CN 203833441U CN 201420145370 U CN201420145370 U CN 201420145370U CN 203833441 U CN203833441 U CN 203833441U
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Abstract
The utility model discloses a synchronous door knife device with a car door lock for an elevator. The synchronous door knife device comprises a door knife bottom plate mounted on a door machine of the elevator, a first blade and a second blade movably mounted on the door knife bottom plate and linked with each other, a transmission arm rotationally connected onto the door knife bottom plate, linked with a door machine drive mechanism and used for driving the first blade and the second blade to open and close, a locking plate coupled onto the door knife bottom plate and provided with a bolt matched with a locking piece on the door machine, an unlocking transmission arm articulated with the second blade and propped against the locking plate to drive the locking plate to release a lock, and an unlocking blade located between the first blade and the second blade, articulated with the unlocking transmission arm and used for acting with a landing door holder to drive the unlocking transmission arm. According to the device, the car door lock of the elevator and a synchronous door knife are collectively arranged on the door machine, the device is convenient to mount and debug, and at the same time, the device has no special requirements for a landing door system and meets provisions of national standards on safety performance of the elevator.
Description
Technical field
The utility model relates to elevator technology field, is specifically related to a kind of synchronous door knife device with gate lock for elevator.
Background technology
Generally using to people's life of elevator brought convenience, and meanwhile, the safety performance of elevator also receives publicity day by day.
11.2.1 regulation in China GB GB7588-2003: " horizontal throw at the edge, nearest doorway of elevator hoistways inside face and car sill, car door framework or sliding door should not be greater than 0.15m.If car is equipped with the door of mechanical interlocking and can only opens in the district of unblanking of floor door, except extraordinary circumstances, the locking of gate should be automatically depended in the operation of elevator, and gate locking must have electric safety device to confirm, above-mentioned spacing is unrestricted ".
In order to meet the requirement of GB, in prior art, conventionally add fender wall or independently gate lock is installed at hoistway inside face, avoid in the time of Lift out of order, passenger does not understand correct mean of escape, opens gate escape, thereby causes danger.
But, the cost that fender wall is installed at hoistway inside face is higher, and extended elevator installation period, and being installed, locks independently gate, need to be at each storey setting release blade, this just need to harmonize accurately to the release blade of gate lock and each floor in the time of lift-mounting, ensure can both open accurately gate lock at the release blade of each floor, when the too high situation of floor, car moves up and down and has unavoidably deviation, bring larger difficulty to the installation of the release blade of each floor, also make the fault rate of gate lock significantly increase simultaneously.
In prior art, the door cutter of elevator and gate lock great majority are to set up respectively, when mounted, need carry out the debugging that a cutter and gate lock coordinate, and not only efficiency is low, meanwhile, also can cause fault rate to increase.
Utility model content
The utility model provides a kind of synchronous door knife device with gate lock for elevator, and elevator cage door lock and synchronous door knife set are arranged on gate, and Installation and Debugging are convenient, and safety performance is good.
For the synchronous door knife device with gate lock of elevator, comprising:
Door cutter base plate, is arranged on the door machine of elevator;
The first blade and the second blade, be movably arranged on described door cutter base plate and interlock mutually;
Transmission arm, is rotatably connected on described door cutter base plate and links with door machine driver train, for driving described the first blade and the second blade folding;
Jam plate, is coupling on described door cutter base plate, and with the dead bolt matching with the closure on door machine;
Release transmission arm, hinged with described the second blade, and offset to drive jam plate release the lock with described jam plate;
Release blade, between described the first blade and the second blade and hinged with described release transmission arm, for making mutually to drive release transmission arm with layer croquet.
In the normal operational process of elevator, door machine driver train drives transmission arm motion, and the first blade and the second blade are kept mutually away from state, and layer croquet can be walked between the first blade and the second blade.
A normal process of opening gate and layer door is: cage operation to layer door sustained height position after (elevator onlocking zone), layer croquet is between the first blade and release blade, under the driving of door machine driver train, gate is opened, the door cutter base plate being arranged on gate (is fixed with link plate on door machine with gate motion, gate and link plate fix, door cutter base plate also fixes with link plate, in the process of switch gate, link plate drives door cutter base plate and gate to be synchronized with the movement), be arranged on release blade on a cutter base plate under the barrier effect of layer croquet, close to the second blade, and drive release transmission arm to overturn against jam plate, remove the fastening state of dead bolt and closure, make a machine driver train can drive gate to continue to open, in the process of opening in continuation, transmission arm makes the first blade and the second blade mutually draw close under the drive of door machine driver train, also being about to layer croquet is clamped between the first blade and release blade, drive layer door to open together by layer croquet.
The process of normally closing gate and layer door is: under the drive of door machine driver train, the first blade and release cutting blade clip are held layer croquet and then are driven the motion of layer door, release blade is under the barrier effect of layer croquet, keep the lifting status of jam plate, after moving to layer door and closing, layer croquet no longer moves, release blade reset (leaving the second blade certain distance), release transmission arm remove to jam plate against, dead bolt engages with closure, complete closing of gate, after gate is closed, door machine driver train drives transmission arm to continue mobile slight distance, the first blade and the second blade are recovered mutually away from state, make car can continue motion.
When elevator faults, if at non-onlocking zone, now, between the first blade and the second blade, there is no a layer croquet, release blade, can not be near the second blade owing to there is no stopping of layer croquet, also just can not drive release transmission arm against jam plate release, gate and layer door all cannot be opened.
As preferably, between the first blade and the second blade, be hinged with two swivel arms for linking, two swivel arm arrangement in parallels, and the middle part of swivel arm respectively with described door cutter base plate hinged, described transmission arm is connected with at least one swivel arm by drive disk assembly.
The first blade, the second blade and two swivel arms form parallelogram sturcutres, and two swivel arms synchronously rotate, when two swivel arms rotate, can drive the first blade and the second blade mutually draw close or mutually away from.
As preferably, described drive disk assembly is lifting rod, and the two ends of this lifting rod are hinged with transmission arm and a swivel arm respectively.
Described lifting rod and transmission arm are in respectively a both sides for cutter base plate place plane, and the jointed shaft between lifting rod and transmission arm runs through a cutter base plate, and door cutter base plate is provided with spacing hole, and described jointed shaft is in spacing hole.
Transmission arm drives lifting rod motion, lifting rod further to drive swivel arm to rotate while rotation, then by swivel arm drive the first blade and the second blade mutually draw close or mutually away from.
As preferably, described transmission arm is provided with the arm axle with the interlock of door machine driver train.Door machine driver train drives arm axle to do straight-line motion, and then drives transmission arm to rotate.
Described door machine driver train is Timing Belt and the drive motor that matches, and described arm axle is connected on Timing Belt.Because arm axle does straight-line motion, and transmission arm rotates, and therefore, between arm axle and Timing Belt, is not fixedly connected with, and arm axle can rotate relative to Timing Belt.
As preferably, on described door cutter base plate, be hinged with stopper arms, described transmission arm is provided with the bayonet socket matching with stopper arms; On stopper arms, be provided with and match with the guide plate on door machine for guiding stopper arms to depart from the guide wheel of bayonet socket.
Gate is during by door-closing in-place, and stopper arms lifts disengaging bayonet socket under the guiding of guide wheel, and transmission arm continues, with the motion of door machine driver train, to drive lifting rod motion, and lifting rod drives swivel arm to rotate, swivel arm drive the first blade and the second blade mutually away from.
Described door cutter base plate is provided with the retracing spring being connected with stopper arms.In the time not contacting with the guide plate on door machine, retracing spring makes stopper arms keep the state matching with the bayonet socket on transmission arm.
As preferably, between described transmission arm and door cutter base plate, be provided with spring, for promoting transmission arm rotation, the first blade and the second blade are closed up.
Described spring is stage clip, work as elevator faults, and car is in the time of onlocking zone, need to be in car or the Room open outdoors Room door and gate, while cutting off the power supply of door machine driver train, under the effect of spring, transmission arm rotates, and the first blade and the second blade are closed up, release blade is close the second blade under the barrier effect of layer croquet, make release transmission arm against jam plate simultaneously, make the fastening state of jam plate releasing and closure, release when realizing Room door and gate.
As preferably, described release transmission arm comprises release transmission arm and lower release transmission arm, and one end and second blade of upper release transmission arm and lower release transmission arm are hinged, and the other end and release blade are hinged; Described upper release transmission arm is provided with and compresses wheel, and described jam plate is provided with and compresses the arc-shaped side that matches of wheel.
Upper release transmission arm, lower release transmission arm, release blade and the second blade form the structure of parallelogram, and upper release transmission arm and lower release transmission arm synchronously rotate, and drive release blade near the second blade or away from the second blade.
The wheel that compresses on upper release transmission arm offsets with the arc-shaped side of jam plate, compresses wheel and fastens or be separated by arc-shaped side promotion jam plate and closure.
As preferably, described door cutter base plate is provided with the operating spring being connected with jam plate, fastens for the dead bolt and the closure that drive jam plate.
Upper release transmission arm compress wheel not to the arc-shaped side applied thrust of jam plate time, rely on the gravity of operating spring and jam plate self, dead bolt and closure on jam plate fasten.
As preferably, the closure on described door machine comprises and is fixed on the support on a machine link plate and is arranged on the latch hook on support, and the dead bolt on described jam plate matches with latch hook.
Described jam plate and support are provided with the contact switch cooperatively interacting, and are used to indicate the folding condition of door-plate.
In the time that the contact switch on jam plate and support is in contact with one another, mean that the gate of elevator and layer door all close and put in place, the control loop conducting of elevator, elevator can bring into operation.
As preferably, on described door cutter base plate, be hinged with the manual unlocking arm offseting with jam plate, this manual unlocking arm is provided with the release steel rope for driving jam plate release the lock.
When elevator faults need to manually be unblanked, pull release steel rope, make manual unlocking arm against jam plate, promote jam plate and lift, the latch hook on dead bolt and the closure on jam plate is separated, realize release.
The utility model is for the synchronous door knife device with gate lock of elevator, elevator cage door lock and synchronous door knife set are arranged on gate, without at every floor, release blade being set, facilitate installation and debugging, simultaneously, layer door system do not had to special requirement yet, meet the regulation to elevator safety performance in national standard.
Brief description of the drawings
Fig. 1 is the front view of the utility model for the synchronous door knife device with gate lock of elevator;
Fig. 2 is the back view of the utility model for the synchronous door knife device with gate lock of elevator;
Fig. 3 is the block diagram of the utility model for the synchronous door knife device with gate lock of elevator;
Fig. 4 is the schematic diagram that the utility model matches with guide plate and closure for the synchronous door knife device with gate lock of elevator;
Fig. 5 is the schematic diagram (another angle) of the utility model for the synchronous door knife device with gate lock of elevator.
In figure: 1, door cutter base plate; 2, transmission arm; 3, extension spring; 4, the first blade; 5, lifting rod; 61, swivel arm; 62, swivel arm; 71, upper release transmission arm; 72, lower release transmission arm; 8, spring; 9, operating spring; 10, jam plate; 11, extension spring; 12, the second blade; 13, release blade; 14, guide plate; 15, stopper arms; 16, support; 17, compress wheel; 18, release steel rope; 19, manual unlocking arm; 20, arm axle; 21, contact switch; 22, position-limited lever; 23, guide wheel; 24, guide plate; 25, dead bolt; 26, the second limit shaft; 27, the first limit shaft; 28,
Latch hook.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail for the synchronous door knife device with gate lock of elevator.
As Fig. 1, Fig. 2, shown in Fig. 3, a kind of synchronous door knife device with gate lock for elevator, comprise: the door cutter base plate 1 of the door that is arranged on elevator on machine, be movably arranged on a cutter base plate 1 and the first blade 4 and second blade 12 of interlock mutually, be rotatably connected on a cutter base plate 1 and with the transmission arm 2 of door machine driver train interlock, be coupling at door cutter base plate 1 upper lock plate 10, and the second blade 12 is hinged and and jam plate 10 offsets to drive the release transmission arm 2 of jam plate 10 release the locks and between the first blade 4 and the second blade 12 and the release blade 13 hinged with release transmission arm 2.
Between the first blade 4 and the second blade 12, be hinged with two swivel arms for linking, be respectively swivel arm 61 and swivel arm 62, swivel arm 61 and swivel arm 62 arrangement in parallels, between swivel arm 61, swivel arm 62, the first blade 4 and the second blade 12, form parallelogram sturcutre, the middle part of swivel arm 61 and swivel arm 62 is hinged with door cutter base plate 1 respectively, transmission arm 2 is connected with swivel arm 61 by lifting rod 5, as shown in Figure 1, one end of lifting rod 5 and transmission arm 2 are hinged, and the other end and swivel arm 61 are hinged.
As shown in Figure 1 and Figure 2, lifting rod 5 is in respectively a both sides for cutter base plate 1 place plane with transmission arm 2, between lifting rod 5 and transmission arm 2, hinged jointed shaft runs through a cutter base plate 1, door cutter base plate 1 is provided with spacing hole, jointed shaft is in spacing hole, jointed shaft and spacing hole cooperatively interact, and limit the slewing area of transmission arm 2.Because the motion of transmission arm 2 is rotation, therefore, spacing hole is arc.
Door machine driver train is Timing Belt and the motor that matches, and transmission arm 2 is provided with the arm axle 20 with Timing Belt interlock, and arm axle 20 does straight-line motion under the drive of Timing Belt, and arm axle 20 relatively Timing Belt rotates.
Between transmission arm 2 and door cutter base plate 1, be provided with spring 8, spring 8 drives transmission arm 2 upsets that the first blade 4 and the second blade 12 are closed up.
As shown in Fig. 2, Fig. 5, on door cutter base plate 1, be hinged with stopper arms 15, transmission arm 2 is provided with the bayonet socket matching with stopper arms 15; On stopper arms 15, be provided with and match with the guide plate 24 on door machine for guiding stopper arms 15 to depart from the guide wheel 23 of bayonet socket.
On door cutter base plate 1, being also provided with the extension spring 11(being connected with stopper arms 15 is retracing spring), stopper arms 15 is provided with the first limit shaft 27 through door cutter base plate 1, between the first limit shaft 27 and door cutter base plate 1, be provided with extension spring 11, extension spring 11 can make stopper arms 15 be rocked to the bayonet socket of transmission arm 2 to match, and the first limit shaft can limit the hunting range of stopper arms 15.
Release transmission arm 2 comprises release transmission arm 71 and lower release transmission arm 72, and upper release transmission arm 71 is T shape plate, and the wherein two ends of T shape plate are hinged with the second blade 12 and release blade 13 respectively, and residue one end is provided with and compresses wheel 17; One end of lower release transmission arm 72 and the second blade 12 are hinged, and the other end and release blade 13 are hinged.
As shown in Figure 1, on upper release transmission arm 71, be also provided with against the second limit shaft 26, the second limit shafts 26 of the second blade 12 with compress wheel 17 and be positioned at same one end, the second limit shaft 26 can limit release blade 13 and the second blade 12 mutually away from ultimate range.
As shown in Figure 4, jam plate 10 is sketch plate, be provided with and compress wheel 17 arc-shaped sides that match (as shown in arrow A in Fig. 2), on jam plate 10, be also provided with dead bolt 25, the closure of door on machine comprise and be fixed on the support 16 on a machine link plate and be arranged on the latch hook 28 on support 16, and the dead bolt 25 on jam plate 10 matches with latch hook 28.
Door cutter base plate 1 is provided with the operating spring 9 being connected with jam plate 10, operating spring 9 can drive the dead bolt 25 of jam plate 10 to fasten with latch hook 28, operating spring 9 is stage clip, stage clip inside is provided with the guidepost of non-metallic material, guidepost is divided into discontinuous two sections, wherein one section is fixedly connected with door cutter base plate 1, and another section is fixedly connected with jam plate 10.
Jam plate 10 is provided with support 16 contact switch 21 cooperatively interacting, and contact switch 21 can be indicated the folding condition of door-plate.
On door cutter base plate 1, be hinged with the manual unlocking arm 19 offseting with jam plate 10, manual unlocking arm 19 is provided with the release steel rope 18 for driving jam plate 10 release the locks.Manual unlocking arm 19 is provided with position-limited lever 22, the spacing hole that door cutter base plate 1 is provided with for wearing position-limited lever 22, and position-limited lever 22 cooperatively interacts with spacing hole, limits the slewing area of manual unlocking arm 19.
Between manual unlocking arm 19 and door cutter base plate 1, be provided with extension spring 3, position when extension spring 3 and the common restriction manual unlocking of position-limited lever 22 arm 19 are not worked.
Noise while work in order to reduce the utility model, position-limited lever 22, the first limit shaft 27, the second limit shaft 26 and transmission arm 2 are all enclosed with the cushion collar taking rubber as material with the jointed shaft outside of lifting rod 5, for buffering and noise reduction.
The utility model is as follows for the working process of the synchronous door knife device with gate lock of elevator:
A normal process of opening gate and layer door is: cage operation to layer door sustained height position after, layer croquet is between the first blade 4 and release blade 13, under the driving of Timing Belt, gate is opened, door cutter base plate 1 moves with gate, release blade 13 is drawn close to the second blade 12 under the barrier effect of layer croquet, the wheel 17 that compresses on driving in close process on release transmission arm 71 overturns against jam plate 10, remove the fastening state of dead bolt 25 and latch hook 28, make Timing Belt drive gate to continue to open, in the process of opening in continuation, transmission arm 2 rotates under the drive of Timing Belt, transmission arm 2 drives the first blade 4 and the second blade 12 mutually to draw close by lifting rod 5 and swivel arm, also being about to layer croquet is clamped between the first blade 4 and release blade 13, drive layer door to open together by layer croquet.
The process of normally closing gate and layer door is: under the drive of door machine driver train, the first blade 4 and release blade 13 holding sheet croquets and then the motion of drive layer door, release blade 13 is under the barrier effect of layer croquet, keep the lifting status of jam plate 10, after moving to layer door and closing, layer croquet no longer moves, release blade 13 resets and (leaves the second blade 12 certain distances, the second limit shaft 26 is against the second blade 12), on upper release transmission arm 71 compressing wheel 17 remove to jam plate 10 against, dead bolt 25 engages with latch hook 28, complete closing of gate, after gate is closed, Timing Belt drives transmission arm 2 to continue mobile slight distance, the first blade 4 and the second blade 12 are recovered mutually away from state, make car can continue motion.
When elevator faults, if at non-onlocking zone, be that gate and layer door be not in sustained height, now, between the first blade 4 and the second blade 12, there is no a layer croquet, release blade 13, can not be near the second blade 12 owing to there is no stopping of layer croquet, also just can not drive compressing on release transmission arm 71 to take turns 17 against jam plate 10 releases, gate and layer door all cannot be opened.
Elevator faults, if car is in the time of onlocking zone, under the effect of spring 8, transmission arm 2 rotates, the first blade 4 and the second blade 12 are drawn close, and release blade 13 near the second blade 12, makes release transmission arm 2 against jam plate 10 under the barrier effect of layer croquet simultaneously, make the fastening state of jam plate 10 releasings and latch hook 28, release when realizing Room door and gate.
Claims (10)
1. for the synchronous door knife device with gate lock of elevator, it is characterized in that, comprising:
Door cutter base plate, is arranged on the door machine of elevator;
The first blade and the second blade, be movably arranged on described door cutter base plate and interlock mutually;
Transmission arm, is rotatably connected on described door cutter base plate and links with door machine driver train, for driving described the first blade and the second blade folding;
Jam plate, is coupling on described door cutter base plate, and with the dead bolt matching with the closure on door machine;
Release transmission arm, hinged with described the second blade, and offset to drive jam plate release the lock with described jam plate;
Release blade, between described the first blade and the second blade and hinged with described release transmission arm, for making mutually to drive release transmission arm with layer croquet.
2. the synchronous door knife device with gate lock for elevator as claimed in claim 1, it is characterized in that, between the first blade and the second blade, be hinged with two swivel arms for linking, two swivel arm arrangement in parallels, and the middle part of swivel arm respectively with described door cutter base plate hinged, described transmission arm is connected with at least one swivel arm by drive disk assembly.
3. the synchronous door knife device with gate lock for elevator as claimed in claim 2, is characterized in that, described drive disk assembly is lifting rod, and the two ends of this lifting rod are hinged with transmission arm and a swivel arm respectively.
4. the synchronous door knife device with gate lock for elevator as claimed in claim 1, is characterized in that, described transmission arm is provided with the arm axle with the interlock of door machine driver train.
5. the synchronous door knife device with gate lock for elevator as claimed in claim 1, is characterized in that, on described door cutter base plate, is hinged with stopper arms, and described transmission arm is provided with the bayonet socket matching with stopper arms; On stopper arms, be provided with and match with the guide plate on door machine for guiding stopper arms to depart from the guide wheel of bayonet socket.
6. the synchronous door knife device with gate lock for elevator as claimed in claim 1, is characterized in that, between described transmission arm and door cutter base plate, is provided with spring, for promoting transmission arm rotation, the first blade and the second blade is closed up.
7. the synchronous door knife device with gate lock for elevator as claimed in claim 1, it is characterized in that, described release transmission arm comprises release transmission arm and lower release transmission arm, and one end and second blade of upper release transmission arm and lower release transmission arm are hinged, and the other end and release blade are hinged; Described upper release transmission arm is provided with and compresses wheel, and described jam plate is provided with and compresses the arc-shaped side that matches of wheel.
8. the synchronous door knife device with gate lock for elevator as claimed in claim 1, is characterized in that, described door cutter base plate is provided with the operating spring being connected with jam plate, fastens for the dead bolt and the closure that drive jam plate.
9. the synchronous door knife device with gate lock for elevator as claimed in claim 1, it is characterized in that, closure on described door machine comprises and is fixed on the support on a machine link plate and is arranged on the latch hook on support, and the dead bolt on described jam plate matches with latch hook.
10. the synchronous door knife device with gate lock for elevator as claimed in claim 1, is characterized in that, on described door cutter base plate, is hinged with the manual unlocking arm offseting with jam plate, and this manual unlocking arm is provided with the release steel rope for driving jam plate release the lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420145370.XU CN203833441U (en) | 2014-03-27 | 2014-03-27 | Synchronous door knife device with car door lock for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420145370.XU CN203833441U (en) | 2014-03-27 | 2014-03-27 | Synchronous door knife device with car door lock for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203833441U true CN203833441U (en) | 2014-09-17 |
Family
ID=51511312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420145370.XU Withdrawn - After Issue CN203833441U (en) | 2014-03-27 | 2014-03-27 | Synchronous door knife device with car door lock for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203833441U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935873A (en) * | 2014-03-27 | 2014-07-23 | 杭州西子孚信科技有限公司 | Synchronous door knife device with car door lock of elevator |
| CN105035922A (en) * | 2015-09-06 | 2015-11-11 | 上海贝思特门机有限公司 | Car door lock door vane device for elevator |
| CN109665429A (en) * | 2017-10-17 | 2019-04-23 | 陕西小溪机电科技有限公司 | A kind of gate layer door system based on safety return circuit detection |
| CN111646348A (en) * | 2020-05-11 | 2020-09-11 | 上海贝思特门机有限公司 | Holding type elevator car door lock and door knife device |
-
2014
- 2014-03-27 CN CN201420145370.XU patent/CN203833441U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935873A (en) * | 2014-03-27 | 2014-07-23 | 杭州西子孚信科技有限公司 | Synchronous door knife device with car door lock of elevator |
| CN105035922A (en) * | 2015-09-06 | 2015-11-11 | 上海贝思特门机有限公司 | Car door lock door vane device for elevator |
| CN109665429A (en) * | 2017-10-17 | 2019-04-23 | 陕西小溪机电科技有限公司 | A kind of gate layer door system based on safety return circuit detection |
| CN111646348A (en) * | 2020-05-11 | 2020-09-11 | 上海贝思特门机有限公司 | Holding type elevator car door lock and door knife device |
| CN111646348B (en) * | 2020-05-11 | 2023-07-21 | 上海贝思特门机有限公司 | Door locking knife device of holding type elevator car door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140917 Effective date of abandoning: 20150826 |
|
| RGAV | Abandon patent right to avoid regrant |