CN201842558U - Car door locking device of elevator door knife - Google Patents
Car door locking device of elevator door knife Download PDFInfo
- Publication number
- CN201842558U CN201842558U CN2010205609121U CN201020560912U CN201842558U CN 201842558 U CN201842558 U CN 201842558U CN 2010205609121 U CN2010205609121 U CN 2010205609121U CN 201020560912 U CN201020560912 U CN 201020560912U CN 201842558 U CN201842558 U CN 201842558U
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- cutter
- door
- roller
- latch hook
- locking device
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Abstract
The utility model discloses a car door locking device of an elevator door knife, which comprises a landing door lock rolling wheel, a door knife component and a car door lock component, wherein the door knife component comprises a first door knife and a second door knife which are vertically arranged on a first car door hanging plate, the landing door lock rolling wheel can enter the space between the first door knife and the second door knife, the door knife component also comprises at least two first connecting rods, at least two second connecting rods, a slider and a chute, the first door knife is hinged on the door knife bottom plate by the first connecting rods, and the slider is arranged on the first door knife, the chute matched with the slider is arranged on an upper frame of the car, the chute is provided with a first position and a second position, the first position is higher than the second position, the second door knife is hinged on the door knife bottom plate by the second connecting rods, and the second door knife can be contacted with the rolling wheel in translation. The car door locking device has the advantages of simple structure and low cost.
Description
Technical field
The utility model relates to the elevator field, especially a kind of elevator door cutter gate locking device with car door lock function.
Background technology
Have two kinds of technical schemes that realize the car door lock functions in the prior art: a kind of is to realize that by the mode that the blade that opens the door of layer reveal is directly stirred the gate lock another kind is the realization that is linked of locking by door cutter and gate.For first technical scheme,, therefore there is the cost problem of higher owing to need increase the blade of unblanking at the layer reveal of each layer.And,, thereby have the cost height, the problem that assembly difficulty is big because the door knife structure is complicated or the complex structure of door cutter and door lock interlocking mechanism for second kind of scheme.As the disclosed a kind of elevator car door locking device of Chinese patent CN101081677A, it comprises layer every lock roller, door knife assembly and car door lock assembly, and its middle level every lock roller is located on the layer door hanging plate.Described door knife assembly comprises two secondary door cuttves that are installed in the first gate hanging board upper mounting plate, are installed in the vertical arrangement on this adapter plate, and two secondary door cuttves wait long connecting rod and adapter plate to be hinged by two.Described layer every lock roller can enter between these the two secondary door cuttves, described car door lock assembly comprises latch hook, dead bolt and two moving rollers, described latch hook is installed in rotation on the described first gate hanging board, and described moving roller is installed on this latch hook, the described dead bolt that cooperates with this latch hook is installed on the second gate hanging board.When opening the door, first secondary door cutter contacts with first moving roller, the hook portion of latch hook is upwards rotated, thereby open the gate locking device; When at closing time, second secondary door cutter contacts with second moving roller, the hook portion of latch hook rotated, thereby close the gate locking device.There is complex structure equally in this elevator car door locking device, the problem that cost is high.
Summary of the invention
The purpose of this utility model is to overcome the defective of prior art, and a kind of elevator door cutter gate locking device simple in structure is provided, and with cost-cutting, reduces assembly difficulty.
To achieve these goals, the technical solution adopted in the utility model is: a kind of elevator door cutter gate locking device, comprise layer every lock roller, door knife assembly and car door lock assembly, its middle level every lock roller is located on layer door or the layer door hanging plate, described door knife assembly comprises first cutter and second cutter of the vertical arrangement that is installed on the first gate hanging board, described layer every lock roller can enter between this first cutter and second cutter, described car door lock assembly comprises latch hook, dead bolt and moving roller, described latch hook is installed in rotation on the described first gate hanging board, and described moving roller is installed on this latch hook, the described dead bolt that cooperates with this latch hook is installed on the second gate hanging board, described door knife assembly also comprises at least two first connecting rods, at least two second connecting rods, sliding part and slideway, described first cutter is hinged on the described door cutter base plate through at least two described first connecting rods, and on this first cutter, be provided with described sliding part, the described slideway that cooperates with this sliding part is located on the upper sill frame of car, this slideway has the primary importance and the second place, and the height of this primary importance is greater than the height of the second place, described second cutter is hinged on the described door cutter base plate through at least two described second connecting rods, and can contact with described moving roller during this second cutter translation.
Preferred version as technique scheme, be provided with the first spacing cushion block and the second spacing cushion block on described door cutter base plate, this first spacing cushion block and this second spacing cushion block are respectively applied for and carry out spacing to the following pan position of described first cutter and described second cutter.Further, when described first cutter was in the extreme lower position state, the line of centres and the horizon of two jointed shafts of described first connecting rod were negative angle.When described second cutter was in the extreme lower position state, the line of centres and the horizon of two jointed shafts of described second connecting rod were positive-angle.
As the preferred version of technique scheme, described car door lock assembly also comprises the adapter plate that is fixedly mounted on the described first gate hanging board, and described latch hook is installed in rotation on this adapter plate by rotating shaft.
Preferred version as technique scheme, described car door lock assembly comprises that also the amount of spin that is used for described moving roller carries out spacing quiet roller, this quiet roller and described moving roller are located at the below of described rotating shaft abreast, this quiet roller and this moving roller be eccentric wheel, and the center shaft of this quiet roller is fixed on the described adapter plate.
As the preferred version of technique scheme, in the hook portion of described latch hook at least one moving switch contact is installed, the break back contact that on described dead bolt, is equipped with and should moving switch contact matches.
As the preferred version of technique scheme, described car door lock assembly also comprises retracing spring, and an end of this retracing spring is fixed on the described adapter plate, and the other end is fixed on the latch hook.
As the preferred version of technique scheme, described car door lock assembly also comprises spacing double-screw bolt, and an end of this spacing double-screw bolt is fixed on the described latch hook, and the other end passes the hole on the described adapter plate and nut is housed.
As the preferred version of technique scheme, described car door lock assembly also comprises the rescue rope, and an end of this rescue rope is fixed on the other end of described latch hook with respect to its hook portion.
The utility model compared with prior art has the following advantages:
(1) first cutter of the present utility model and second cutter difference self contained function, wherein first cutter slides in slideway by sliding part, both finished gate and closed the back and keep a certain interval, finished in the process of opening the door clamping again layer every lock roller with a layer every lock roller; And second cutter be equally by second connecting rod, both finished the stirring of latch hook, and cooperates with second cutter again and finish the clamping of in the process of opening the door layer every being locked roller.This shows that the utility model is only stirred latch hook by second cutter when opening the door, gravity and the retracing spring by latch hook resets latch hook at closing time, and be therefore simple in structure.
(2) first cutter of the present utility model and second cutter are relying on self gravitation to be still in respectively on the first spacing cushion block and the second spacing cushion block under the non-stress state, need not elastic element recoil states such as existing door spring that cutter relies on, such structure is comparatively simple, and cost is lower.
(3) hook portion of moving roller of off-centre of the present utility model and latch hook constitutes simple leverage by rotating shaft, by setting the distance between moving roller and the quiet roller and the length of latch hook hook portion one end, the height that lifts in the time of just can controlling the latch hook release, both realized the release of latch hook and the swing of unblanking easily, have again simple in structure, move accurate and reliable characteristics.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment, and wherein, Fig. 1 (a) is the structural representation of door knife assembly and car door lock assembly, and Fig. 1 (b) is the structural representation of layer every lock roll wheel assembly;
Fig. 2 is the structural representation of the utility model embodiment car door lock assembly;
Fig. 3 is the scheme drawing of the utility model embodiment at the unlocking condition of level position;
Fig. 4 is the scheme drawing of the utility model embodiment at the locking state of level position.
Description of reference numerals:
First cutter of 1-, 1a-first driving surface, second cutter of 2-, 2a-second driving surface, 2b-the 3rd driving surface, 3-door cutter base plate, the 4-slideway, the 5-sliding part, the 6-first connecting rod, 6 '-second connecting rod, the 7-first spacing cushion block, 7 '-the second spacing cushion blocks, the 8-latch hook, the 9-break back contact, the 10-dead bolt, the 11-first gate hanging board, 12-layer door, the 13-hook plate, 14,15-layer every lock roller, the 16-hook portion, the 17-adapter plate, 18-moves switch contact, the 19-retracing spring, the 20-rotating shaft, the quiet roller of 21-, 22-moves roller, 23-rescues rope, the spacing double-screw bolt of 24-, the 25-adapter plate, the 26-second gate hanging board.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated:
One of them embodiment of the present utility model as shown in Figure 1.Elevator door cutter gate locking device mainly is made up of layer every lock roll wheel assembly, door knife assembly and car door lock assembly three parts.
Shown in Fig. 1 (b), layer every lock roller set comprises two layer every locks roller 14,15, hook plate 13 and adapter plates 25, adapter plate 25 is fixedly mounted on the layer door 12, and hook plate 13 is installed in rotation on the adapter plate 25, and the center shaft of layer every lock roller 14 is fixed on the adapter plate 25, the center shaft of roller 15 is fixed on the hook plate 13.
Shown in Fig. 1 (a), the door knife assembly by first cutter 1, second cutter 2, door cutter base plate 3, sliding part 5, slideway 4, first spacing cushion block 7, the second spacing cushion block 7 ', first connecting rod 6 and second connecting rod 6 ' form.Wherein, door cutter base plate 3 is fixed on the first gate hanging board 11, first cutter 1 and second cutter 2 left and right vertical setting, and respectively by two isometric first connecting rods 6 and two isometric second connecting rods 6 ' be hinged on a cutter base plate 3, such first cutter 1 and second cutter 2 can left and right sides translations in up-and-down movement.On door cutter base plate 3, also be equipped be used for respectively the first spacing cushion block 7 that the following pan position of first cutter 1 and second cutter 2 is accurately located and the second spacing cushion block 7 '.Preferably, when first cutter 1 was in the extreme lower position state, the line of centres and the horizon of two jointed shafts of first connecting rod 6 were negative angle.Like this, when first cutter 1 when being subjected to the application force of horizontal direction, under the supplemental support of the first spacing cushion block 7, can make first cutter 1 not produce motion in the horizontal direction and form self-locking state.Equally, when second cutter 2 when being subjected to the right application force of level, second cutter 2 can freely swing.Sliding part 5 is a roller, and it is installed in the upper end of first cutter 1, and the slideway 4 that cooperates with this sliding part 5 is located on the upper sill frame (not shown on the figure) of car.Slideway 4 approximate serpentines have the primary importance that is positioned at the right side and the second place that is positioned at the left side, and the height of this primary importance are greater than the height of the second place.Relatively be provided with the first driving surface 1a and the second driving surface 2a in the bottom of first cutter 1 and second cutter 2, the first driving surface 1a and the second driving surface 2a are used for two layer every locks of clamping roller 14,15.Be provided with the 3rd driving surface 2b in the upper end of second cutter 2.
As depicted in figs. 1 and 2, the car door lock assembly is made up of latch hook 8, dead bolt 10, adapter plate 17, moving roller 22, quiet roller 21, moving switch contact 18, break back contact 9, retracing spring 19, spacing double-screw bolt 24 and rescue rope 23.Wherein, the middle part of latch hook 8 is installed in rotation on the adapter plate 17 by rotating shaft 20, and adapter plate 17 then is installed on the first gate hanging board 11.The right-hand member of this latch hook 8 has a hook portion 16, is fixed with rescue rope 23 at the left end of this latch hook 8, and the other end of rescue rope 23 is a free end, by pulling rescue rope 23 to rotate latch hook 8.On the latch hook below the rotating shaft 20 8, be arranged side by side the moving roller 22 and the quiet roller 21 of relative eccentricity of central axis, moving roller 22 is positioned at the left side of quiet roller 21, its center shaft is fixed on the latch hook 8, the 3rd driving surface 2b that should move roller 22 and second cutter 2 upper end is used, promptly when second cutter 2 during to right translation, the 3rd driving surface 2b contacts and collides with moving roller 22, drives latch hook 8 and 20 rotatablely moves around the shaft.The center shaft of quiet roller 21 is fixed on the adapter plate 17, is used to limit the amount of spin of moving roller 22.Latch hook 8 is provided with and is used to make latch hook 8 to reply the retracing spring 19 of locking state, and an end of retracing spring 19 is fixed on the adapter plate 17, and the other end is fixed on latch hook 8 near its hook portion 16 places.The spacing double-screw bolt 24 that can limit latch hook 8 transition locking also is set on latch hook 8, and an end of this spacing double-screw bolt 24 is fixed on the described latch hook 8, and the other end passes the hole on the adapter plate 17 and nut is housed.Spacing double-screw bolt 24 can be regulated the spacing of latch hook 8 by screw thread.Dead bolt 10 is fixedly mounted on the second gate hanging board 26.Hook portion 16 at latch hook 8 is equipped with at least one moving switch contact 18, is equipped with and is somebody's turn to do the break back contact 9 that moving switch contact 18 matches on dead bolt 10.
Set forth the principle of work of present embodiment below in conjunction with Fig. 3 and Fig. 4:
As shown in Figure 3, elevator cage operation gate lock when level position opens the door process of unblanking.When door opener opens the door when action, position between first cutter 1 of layer every lock roller access door knife assembly and second cutter 2.Gate opens the door when initial, move with door opener, the first gate hanging board, 11 levels are moved to the left, be installed on the first gate hanging board 11 door cutter base plate 3 also level be moved to the left a segment distance, thereby the sliding part 5 that drives first cutter 1 top moves to the second place from the primary importance of slideway 4, self-locking when first cutter 1 moved to first connecting rod 6 downwards and touched the first spacing cushion block, 7 positions this moment, this moment is because the 1a driving surface contact of first cutter 1 and the compressing of layer every being locked roller 14, drive roller 15 contacts of layer every lock and promote second cutter 2 to the right, move up after second cutter 2 is stressed, and simultaneously to the moving roller 22 of right translation compressing, drive latch hook 8 20 rotations around the shaft, the hook portion 16 of latch hook 8 is upwards lifted, and latch hook 8 is opened.Gate continues to open, and first cutter 1 and second cutter 2 gripping layer doors 12 lock roller 14,15 drive layer door 12 and do the motion of opening the door.
As shown in Figure 4, lift car is in level position gate lock locking at closing time process.When the level position gate at closing time, when the sliding part 5 of first cutter 1 upper end arrives the primary importance of slideway 4, this moment, gate slowed down, layer door 12 is under the traction of the self-closing power of layer door 12 springs, and 2, the second cuttves 2 of layer every lock roller 15 second cutter of bump are to the moving roller 22 of right translation compressing, latch hook 8 is 20 rotations around the shaft, the hook portion 16 of latch hook 8 is lifted, and latch hook 8 is opened, and the assurance gate can be closed.After gate is closed fully, because first upwards operation of cutter 1, its 1a driving surface separates certain interval with layer every lock roller 14, therefore layer every lock roller separates with second cutter 2, second cutter 2 disengages with moving roller 22, and latch hook 8 is under the effect of retracing spring 19, and the hook portion 16 of latch hook 8 falls, hook dead bolt 10, thereby with the locking of gate lock.
When the operation of non-leveling zone or fault are stopped ladder, layer every lock roller is position between first cutter 1 of access door knife assembly and second cutter 2 not, the sliding part 5 at first cutter 1 top is in the primary importance of slideway 4, second cutter 2 be still in the second spacing cushion block 7 ' on, do not contact with moving roller 22 on the latch hook 8, latch hook 8 hooks dead bolt 10 under gravity and action of the spring, be in locking state, so personnel can't open gate in the sedan-chair.
When if elevator faults is parked in the level position door lock zone, the interior personnel of sedan-chair can take off gate and save oneself, and principle was consistent when it moved with normal door.Personnel take off gate with hand in the sedan-chair, gate is opened when initial, the sliding part 5 at first cutter 1 top slides from the primary importance of slideway 4, and first cutter 1 moves to the first connecting rod 6 contacts first spacing cushion block 7 position self-lockings downwards, the gate operation that continues to open the door, force layer every lock roller 15 near second cutter 2, make second cutter 2 stressed after compressing to right translation, the moving roller 22 of compressing, latch hook 8 is 20 rotations around the shaft, the hook portion 16 of latch hook 8 is lifted, and latch hook 8 is opened.Gate continues to open, and first cutter 1 and second cutter 2 gripping layer doors 12 lock roller 14,15 drive layer door 12 and do the motion of opening the door.
Save oneself if personnel are unable in the sedan-chair, when the Room outside, implementing oppressive rescue, can utilize layer door 12 more openable gaps, stretch into the crack between a door and its frame gap, upwards push the hook portion 16 of latch hook 8 open, open layer 12 again with the purpose made de-constructers; In the time of still can't opening, can pass through the jiggering mode, after the maintainer goes up earlier the sedan-chair top, open the gate lock on the sedan-chair top with manual mode and implement rescue.
This shows, elevator door cutter gate locking device of the present utility model is installed after, elevator is in the flat bed onlocking zone, personnel can open gate and layer door 12 by taking off the gate mode in the sedan-chair, realize saving oneself; In non-flat bed onlocking zone, the interior personnel of sedan-chair can't open gate voluntarily and save oneself; Effectively avoid the interior personnel of sedan-chair in non-flat bed onlocking zone, to open the danger that gate falls pit.
Only be specific embodiment of the utility model below, do not limit protection domain of the present utility model with this; Any replacement and the improvement done on the basis of not violating the utility model design all belong to protection domain of the present utility model.
Claims (10)
1. elevator door cutter gate locking device, comprise layer every lock roller, door knife assembly and car door lock assembly, its middle level every lock roller is located on layer door or the layer door hanging plate, described door knife assembly comprises first cutter and second cutter of the vertical arrangement that is installed on the first gate hanging board, described layer every lock roller can enter between this first cutter and second cutter, described car door lock assembly comprises latch hook, dead bolt and moving roller, described latch hook is installed in rotation on the described first gate hanging board, and described moving roller is installed on this latch hook, the described dead bolt that cooperates with this latch hook is installed on the second gate hanging board, it is characterized in that: described door knife assembly also comprises at least two first connecting rods, at least two second connecting rods, sliding part and slideway, described first cutter is hinged on the described door cutter base plate through at least two described first connecting rods, and on this first cutter, be provided with described sliding part, the described slideway that cooperates with this sliding part is located on the upper sill frame of car, this slideway has the primary importance and the second place, and the height of this primary importance is greater than the height of the second place, described second cutter is hinged on the described door cutter base plate through at least two described second connecting rods, and can contact with described moving roller during this second cutter translation.
2. elevator door cutter gate locking device according to claim 1, it is characterized in that: be provided with the first spacing cushion block and the second spacing cushion block on described door cutter base plate, this first spacing cushion block and this second spacing cushion block are respectively applied for and carry out spacing to the following pan position of described first cutter and described second cutter.
3. elevator door cutter gate locking device according to claim 2 is characterized in that: when described first cutter was in the extreme lower position state, the line of centres and the horizon of two jointed shafts of described first connecting rod were negative angle.
4. elevator door cutter gate locking device according to claim 2 is characterized in that: when described second cutter was in the extreme lower position state, the line of centres and the horizon of two jointed shafts of described second connecting rod were positive-angle.
5. the described elevator door cutter gate locking device arbitrary according to claim 1 to 4, it is characterized in that: described car door lock assembly also comprises the adapter plate that is fixedly mounted on the described first gate hanging board, and described latch hook is installed in rotation on this adapter plate by rotating shaft.
6. elevator door cutter gate locking device according to claim 5, it is characterized in that: described car door lock assembly comprises that also the amount of spin that is used for described moving roller carries out spacing quiet roller, this quiet roller and described moving roller are located at the below of described rotating shaft abreast, this quiet roller and this moving roller be eccentric wheel, and the center shaft of this quiet roller is fixed on the described adapter plate.
7. elevator door cutter gate locking device according to claim 5 is characterized in that: the hook portion at described latch hook is equipped with at least one moving switch contact, is equipped with and is somebody's turn to do the break back contact that moving switch contact matches on described dead bolt.
8. elevator door cutter gate locking device according to claim 5, it is characterized in that: described car door lock assembly also comprises retracing spring, and an end of this retracing spring is fixed on the described adapter plate, and the other end is fixed on the described latch hook.
9. elevator door cutter gate locking device according to claim 5, it is characterized in that: described car door lock assembly also comprises spacing double-screw bolt, and an end of this spacing double-screw bolt is fixed on the described latch hook, and the other end passes the hole on the described adapter plate and nut is housed.
10. elevator door cutter gate locking device according to claim 5 is characterized in that: described car door lock assembly also comprises the rescue rope, and an end of this rescue rope is fixed on the other end of described latch hook with respect to its hook portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205609121U CN201842558U (en) | 2010-10-13 | 2010-10-13 | Car door locking device of elevator door knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205609121U CN201842558U (en) | 2010-10-13 | 2010-10-13 | Car door locking device of elevator door knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201842558U true CN201842558U (en) | 2011-05-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205609121U Expired - Lifetime CN201842558U (en) | 2010-10-13 | 2010-10-13 | Car door locking device of elevator door knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201842558U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103569836A (en) * | 2013-11-18 | 2014-02-12 | 日立电梯（中国）有限公司 | Elevator car door lock opening device and elevator |
| CN103693539A (en) * | 2012-09-27 | 2014-04-02 | 日立电梯（中国）有限公司 | Opening protection device for dual-wing landing door |
| CN104129704A (en) * | 2014-07-23 | 2014-11-05 | 台州市中奥特种设备检测技术服务有限公司 | Door cutter structure with mechanical lock device |
| CN105392730A (en) * | 2013-07-19 | 2016-03-09 | 三菱电机株式会社 | Elevator car door lock device |
| CN108275556A (en) * | 2018-04-18 | 2018-07-13 | 林肯电梯(中国)有限公司 | Lift car pair door cutter mechanism |
| CN108408528A (en) * | 2018-02-13 | 2018-08-17 | 福德斯电梯有限公司 | A kind of passenger lift door mechanism system |
| CN108502686A (en) * | 2017-02-24 | 2018-09-07 | 日立电梯（中国）有限公司 | A kind of safety protector of elevator door |
| CN109436996A (en) * | 2018-11-28 | 2019-03-08 | 苏州市职业大学 | The split type double layers apart door locks of elevator |
| CN110877851A (en) * | 2019-12-10 | 2020-03-13 | 天津京龙工程机械有限公司 | Door knife for elevator cage door |
| CN114348833A (en) * | 2021-12-16 | 2022-04-15 | 日立电梯（中国）有限公司 | Asynchronous door knife integrated car door lock and elevator |
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2010
- 2010-10-13 CN CN2010205609121U patent/CN201842558U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693539A (en) * | 2012-09-27 | 2014-04-02 | 日立电梯（中国）有限公司 | Opening protection device for dual-wing landing door |
| CN103693539B (en) * | 2012-09-27 | 2015-11-18 | 日立电梯（中国）有限公司 | Double-vane layer door opening protecting apparatus |
| CN105392730A (en) * | 2013-07-19 | 2016-03-09 | 三菱电机株式会社 | Elevator car door lock device |
| US9656835B2 (en) | 2013-07-19 | 2017-05-23 | Mitsubishi Electric Corporation | Elevator car door locking apparatus |
| CN103569836A (en) * | 2013-11-18 | 2014-02-12 | 日立电梯（中国）有限公司 | Elevator car door lock opening device and elevator |
| CN104129704A (en) * | 2014-07-23 | 2014-11-05 | 台州市中奥特种设备检测技术服务有限公司 | Door cutter structure with mechanical lock device |
| CN108502686A (en) * | 2017-02-24 | 2018-09-07 | 日立电梯（中国）有限公司 | A kind of safety protector of elevator door |
| CN108502686B (en) * | 2017-02-24 | 2020-01-03 | 日立电梯（中国）有限公司 | Elevator door safety protection device |
| CN108408528B (en) * | 2018-02-13 | 2019-11-08 | 福德斯电梯有限公司 | A kind of passenger lift door mechanism system |
| CN108408528A (en) * | 2018-02-13 | 2018-08-17 | 福德斯电梯有限公司 | A kind of passenger lift door mechanism system |
| CN108275556A (en) * | 2018-04-18 | 2018-07-13 | 林肯电梯(中国)有限公司 | Lift car pair door cutter mechanism |
| CN109436996A (en) * | 2018-11-28 | 2019-03-08 | 苏州市职业大学 | The split type double layers apart door locks of elevator |
| CN110877851A (en) * | 2019-12-10 | 2020-03-13 | 天津京龙工程机械有限公司 | Door knife for elevator cage door |
| CN110877851B (en) * | 2019-12-10 | 2023-08-29 | 天津京龙工程机械有限公司 | Door knife for lifting cage door of lifter |
| CN114348833A (en) * | 2021-12-16 | 2022-04-15 | 日立电梯（中国）有限公司 | Asynchronous door knife integrated car door lock and elevator |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110525 |