CN104944242A - Safety device for preventing accidental movement of lift car in door opening state - Google Patents
Safety device for preventing accidental movement of lift car in door opening state Download PDFInfo
- Publication number
- CN104944242A CN104944242A CN201510402473.9A CN201510402473A CN104944242A CN 104944242 A CN104944242 A CN 104944242A CN 201510402473 A CN201510402473 A CN 201510402473A CN 104944242 A CN104944242 A CN 104944242A
- Authority
- CN
- China
- Prior art keywords
- latch
- fixedly installed
- car
- sensor
- locking device
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
- B66B1/365—Means for stopping the cars, cages, or skips at predetermined levels mechanical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/26—Positively-acting devices, e.g. latches, knives
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a safety device for preventing accidental movement of a lift car in an open door state. The safety device comprises a first bolt locking device, a second bolt locking device and an electronically-controlled gear braking device, wherein the first bolt locking device and the second bolt locking device are fixedly arranged at the upper end of the life car, the electronically-controlled gear braking device is fixedly arranged at the lower end of the lift car, during rising and falling of the lift car, a hall door and a car door are in a closed state, the bolt locking devices are in an open state, the electronically-controlled gear braking device is in a released state, after the lift car is stopped, the hall door and the car door are opened, the bolt locking devices are in a locked state, the electronically-controlled gear braking device is in a locked state, the lift car is in a stopped state, and accidental movement of the lift car is prevented. The safety device is simple in structure, safe, reliable, low in cost and low in maintenance charge, mechanical and electronic control dual protection operation is realized, emergencies can be controlled timely, used lift car safety equipment can be replaced simply, and the replacement cost is low.
Description
Technical field
The present invention relates to a kind of elevator car safety, particularly one prevents lift car accidental movement safety device under door open mode.
Background technology
Along with the development and progress of building industry, also be more and more to the use of elevator, application is also more and more extensive, elevator accident is also increase gradually, also result in the common concern of people, wherein accidental movement of elevator cage or operation and to occur to shear injury be the major cause causing passenger's injures and deaths under the state opened at Room door, gate of elevator, and this phenomenon is on the rise.Its major cause is: the reduction of brake failure, traction or disappearance etc.Prior art, all by braking the startup and stopping that indirectly controlling car to elevator traction machine, car is not directly braked, reduce as brake failure or traction or disappear to cause the accidental movement of car, thus have an accident personal safety threatened.
Summary of the invention
The object of the invention is to solve locking and the brake equipment that above-mentioned existing lift car does not directly act on car body, safety apparatus structure is complicated, complex operation, safety and reliability is low, can not control car emergency case such as accidental movement under Room door, gate open mode, complicated to using elevator car safety equipment replacement, costly, be not suitable for the problems such as widespread use, and provide one to prevent lift car accidental movement safety device under door open mode.
The present invention is made up of the first latch locking device, the second latch locking device and automatically controlled gear brake equipment, first latch locking device and the second latch locking device are fixedly installed on car frame upper end respectively, automatically controlled gear locking device is fixedly installed on car frame lower end, and the first latch locking device is identical with the locked apparatus structure of the second latch;
First latch locking device comprises the first latch adapter plate, first is located by connecting plate, first latch cylinder, first latch, first steel wire sleeve, first steel wire, first fixation with steel wire plate, first spring and the first latch inductor, first latch adapter plate is fixedly installed on the first elevator slideway, and the first latch adapter plate has the first latch fixed orifice, first plate that is located by connecting is fixedly installed on car frame, first latch cylinder is fixedly installed on first and is located by connecting on plate, first latch cylinder has baffle plate, first latch is arranged in the first latch cylinder, first latch has latch baffle plate, first steel wire sleeve left end is fixedly installed on the first latch right-hand member, first steel wire is arranged in the first steel wire sleeve, first steel wire is fixedly installed on the first latch and the first fixation with steel wire plate respectively, first fixation with steel wire plate is fixedly installed on the first car door, first spring winding is on the first latch, first latch inductor is fixedly installed on car frame,
Automatically controlled gear brake equipment comprises tooth bar, gear, drive link, first base, second base, control box, several transmission line and several sensor, sensor comprises first sensor, second sensor, 3rd sensor and four-sensor, first sensor is fixedly installed on Room door frame and the first Room door, second sensor is fixedly installed on Room door frame and the second Room door, 3rd sensor is fixedly installed on car and the first car door, four-sensor is fixedly installed on car and the second car door, tooth bar is fixedly installed on the second elevator slideway, first base, second base and control box are fixedly installed on car frame lower end respectively, drive link is through the first base and the second base and be arranged on control box, there is in control box controller and drg, gear is fixedly installed on drive link right-hand member, several transmission line is fixedly installed between control box and sensor.
Principle of work of the present invention and process:
First latch locking device and the second latch locking device: in car lifting process, car door is in closure state, first steel wire pulls the first latch, the first latch locking device and the second latch locking device is made to be in open mode, after car stops, car door is opened, first steel wire is retracted, first spring promotes the first latch and travels forward, the first latch is made to insert in the first latch fixed orifice, first latch locking device and the second latch locking device are in locking state, ensure that car is in halted state, prevent car accidental movement, first latch inductor transmission also feeds back the first latch mode of operation, real-time understanding first latch locking device and the second latch locking device service condition.
Automatically controlled gear locking device: in car lifting process, Room door and gate are in closure state, controller control brake makes engaged gears tooth bar rotate up and down, after car stops, Room door and gate are opened, and transmit opening signal by sensor to controller, and controller control brake makes gear stop operating, and be in locking state, prevent car accidental movement.
Beneficial effect of the present invention:
Structure of the present invention is simple, and it is convenient, safe and reliable to change, mechanization and the operation of automatically controlled duplicate protection; can control in time emergency case, cost is low, maintenance and maintenance cost low; simple to using elevator car safety equipment replacement, diversion fee is low, is applicable to widespread use.
Accompanying drawing explanation
Fig. 1 is schematic perspective view of the present invention.
Fig. 2 be the present invention locked time schematic perspective view.
Fig. 3 is the schematic perspective view of the present invention first latch locking device.
Fig. 4 is the schematic perspective view of the automatically controlled gear brake equipment of the present invention.
Detailed description of the invention
Refer to shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the present invention is made up of the first latch locking device 1, second latch locking device 2 and automatically controlled gear brake equipment 3, first latch locking device 1 and the second latch locking device are fixedly installed on car frame 42 upper end respectively, automatically controlled gear locking device 3 is fixedly installed on car frame 42 lower end, and the first latch locking device 1 is identical with the second latch locking device 2 structure;
First latch locking device 1 comprises the first latch adapter plate 11, first is located by connecting plate 12, first latch cylinder 13, first latch 14, first steel wire sleeve 15, first steel wire 16, first fixation with steel wire plate 17, first spring 18 and the first latch inductor 19, first latch adapter plate 11 is fixedly installed on the first elevator slideway 41, and first latch adapter plate 11 has the first latch fixed orifice 111, first plate 12 that is located by connecting is fixedly installed on car frame 42, first latch cylinder 13 is fixedly installed on first and is located by connecting on plate 12, first latch cylinder 13 has baffle plate 131, first latch 14 is arranged in the first latch cylinder 13, first latch 14 has latch baffle plate 141, first steel wire sleeve 15 left end is fixedly installed on the first latch 14 right-hand member, first steel wire 16 is arranged in the first steel wire sleeve 15, first steel wire 16 is fixedly installed on the first latch 14 and the first fixation with steel wire plate 17 respectively, first fixation with steel wire plate 17 is fixedly installed on the first car door 44, first spring 18 winding is on the first latch 14, first latch inductor 19 is fixedly installed on car frame 42,
Automatically controlled gear brake equipment 3 comprises tooth bar 31, gear 32, drive link 33, first base 34, second base 35, control box 36, several transmission line 37 and several sensor 38, sensor 38 comprises first sensor 381, second sensor 382, 3rd sensor 383 and four-sensor 384, first sensor 381 is fixedly installed on Room door frame 5 and the first Room door 51, second sensor 382 is fixedly installed on Room door frame 5 and the second Room door 52, 3rd sensor 383 is fixedly installed on car 4 and the first car door 44, four-sensor 384 is fixedly installed on car 4 and the second car door 45, tooth bar 31 is fixedly installed on the second elevator slideway 43, first base 34, second base 35 and control box 36 are fixedly installed on car frame 42 lower end respectively, drive link 33 is through the first base 34 and the second base 35 and be arranged on control box 36, there is in control box 36 controller 361 and drg 362, gear 32 is fixedly installed on drive link 33 right-hand member, several transmission line 37 is fixedly installed between control box 36 and sensor 38.
Principle of work of the present invention and process:
Refer to Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, first latch locking device 1 and the second latch locking device 2: in car 4 lifting process, car door 44 is in closure state, first steel wire 16 pulls the first latch 14, the first latch locking device 1 and the second latch locking device 2 is made to be in open mode, after car 4 stops, car door 44 is opened, first steel wire 16 is retracted, first spring 18 promotes the first latch 14 and travels forward, the first latch 14 is made to insert in the first latch fixed orifice 111, first latch locking device 1 and the second latch locking device 2 are in locking state, ensure that car 4 is in halted state, prevent car 4 accidental movement, first latch inductor 19 transmits and feeds back the first latch mode of operation, real-time understanding first latch locking device 1 and the second latch locking device 2 service condition.
Automatically controlled gear locking device 3: in car 4 lifting process, Room door and gate are in closure state, controller 361 control brake makes gear 32 be engaged tooth bar to rotate up and down, after car 4 stops, Room door and gate are opened, and transmit opening signal by sensor 38 pairs of controllers 361, controller 361 control brake 362 makes gear 32 stop operating, and be in locking state, prevent car 4 accidental movement.
Claims (2)
1. one kind prevents lift car accidental movement safety device under door open mode, it is characterized in that: be made up of the first latch locking device (1), the second latch locking device (2) and automatically controlled gear brake equipment (3), first latch locking device (1) and the second latch locking device are fixedly installed on car frame (42) upper end respectively, automatically controlled gear locking device (3) is fixedly installed on car frame (42) lower end, and the first latch locking device (1) is identical with the second latch locking device (2) structure;
First latch locking device (1) comprises the first latch adapter plate (11), first is located by connecting plate (12), first latch cylinder (13), first latch (14), first steel wire sleeve (15), first steel wire (16), first fixation with steel wire plate (17), first spring (18) and the first latch inductor (19), first latch adapter plate (11) is fixedly installed on the upper first latch adapter plate (11) of the first elevator slideway (41) has the first latch fixed orifice (111), first plate (12) that is located by connecting is fixedly installed on car frame (42), first latch cylinder (13) is fixedly installed on first and is located by connecting on plate (12), first latch cylinder (13) has baffle plate (131), first latch (14) is arranged in the first latch cylinder (13), first latch (14) has latch baffle plate (141), first steel wire sleeve (15) left end is fixedly installed on the first latch (14) right-hand member, first steel wire (16) is arranged in the first steel wire sleeve (15), first steel wire (16) is fixedly installed on the first latch (14) and the first fixation with steel wire plate (17) respectively, first fixation with steel wire plate (17) is fixedly installed on the first car door (44), first spring (18) winding is on the first latch (14), first latch inductor (19) is fixedly installed on car frame (42).
2. one according to claim 1 prevents lift car car accidental movement safety device under Room door and gate open mode, it is characterized in that: automatically controlled gear brake equipment (3) comprises tooth bar (31), gear (32), drive link (33), first base (34), second base (35), control box (36), several transmission line (37) and several sensor (38), sensor (38) comprises first sensor (381), second sensor (382), 3rd sensor (383) and four-sensor (384), first sensor (381) is fixedly installed on Room door frame (5) and the first Room door (51), second sensor (382) is fixedly installed on Room door frame (5) and the second Room door (52), 3rd sensor (383) is fixedly installed on car (4) and the first car door (44), four-sensor (384) is fixedly installed on car (4) and the second car door (45), tooth bar (31) is fixedly installed on the second elevator slideway (43), first base (34), second base (35) and control box (36) are fixedly installed on car frame (42) lower end respectively, drive link (33) is through the first base (34) and the second base (35) and be arranged on control box (36), there is in control box (36) controller (361) and drg (362), gear (32) is fixedly installed on drive link (33) right-hand member, several transmission line (37) is fixedly installed between control box (36) and sensor (38).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510402473.9A CN104944242A (en) | 2015-07-10 | 2015-07-10 | Safety device for preventing accidental movement of lift car in door opening state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510402473.9A CN104944242A (en) | 2015-07-10 | 2015-07-10 | Safety device for preventing accidental movement of lift car in door opening state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104944242A true CN104944242A (en) | 2015-09-30 |
Family
ID=54159398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510402473.9A Pending CN104944242A (en) | 2015-07-10 | 2015-07-10 | Safety device for preventing accidental movement of lift car in door opening state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104944242A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668384A (en) * | 2016-04-05 | 2016-06-15 | 日立电梯（中国）有限公司 | Elevator car and method for preventing elevator car from accidental movement |
| CN106006284A (en) * | 2016-06-28 | 2016-10-12 | 昆山德标机电有限公司 | Elevator safety protection system |
| CN106429708A (en) * | 2016-09-29 | 2017-02-22 | 克莱斯电梯（中国）有限公司 | Goods elevator for preventing accidents caused by accidental car movement |
| CN106744134A (en) * | 2017-03-28 | 2017-05-31 | 广东铃木电梯有限公司 | A kind of non-stop formula car accidental movement protected mode, device and its driving method |
| CN107352370A (en) * | 2017-07-31 | 2017-11-17 | 快意电梯股份有限公司 | Prevent the protection device of accidental movement of elevator cage |
| CN107879218A (en) * | 2017-12-18 | 2018-04-06 | 康达电梯有限公司 | A kind of used during elevator falling protection device |
| CN108263994A (en) * | 2017-12-29 | 2018-07-10 | 江苏昆山通用电气有限公司 | Construction of cable run lifting platform |
| CN109534126A (en) * | 2018-11-02 | 2019-03-29 | 李以仁 | The anti-riot flushing device of elevator |
| CN109969900A (en) * | 2019-04-26 | 2019-07-05 | 湖南省特种设备检验检测研究院邵阳分院 | A kind of accidental movement of elevator cage protective device |
| CN110937546A (en) * | 2019-11-29 | 2020-03-31 | 徐州恒佳机械科技有限公司 | Mine machinery lifting self-locking device |
| CN111217222A (en) * | 2020-03-17 | 2020-06-02 | 湖州职业技术学院 | Protection device and elevator |
| CN112125106A (en) * | 2020-09-23 | 2020-12-25 | 福建省特种设备检验研究院 | Anti-shearing protection device based on elevator car door linkage |
| CN113307132A (en) * | 2021-05-25 | 2021-08-27 | 天津市特种设备监督检验技术研究院(天津市特种设备事故应急调查处理中心) | Safety elevator |
| CN114590666A (en) * | 2022-03-15 | 2022-06-07 | 西尼机电（杭州）有限公司 | Elevator with anti-shearing protection function of car locking |
| CN115650017A (en) * | 2022-12-14 | 2023-01-31 | 南通勇振机电有限公司 | Elevator car safety arrangement |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2895356Y (en) * | 2006-05-10 | 2007-05-02 | 上海永大电梯设备有限公司 | Falling-proof plug device for elevator cage |
| CN202609730U (en) * | 2012-04-06 | 2012-12-19 | 东南电梯股份有限公司 | Service lift special for nuclear power plant |
| CN103147639A (en) * | 2013-04-02 | 2013-06-12 | 国强建设集团有限公司 | Bolt for passenger-goods lift in construction site |
| CN103395667A (en) * | 2013-08-21 | 2013-11-20 | 上海微频莱机电科技有限公司 | Safety protection mechanism for accidental moving of elevator car |
| CN104016204A (en) * | 2014-06-26 | 2014-09-03 | 申龙电梯股份有限公司 | Cage flat-layer-falling prevention device in linkage with door motor |
| CN203833409U (en) * | 2014-05-07 | 2014-09-17 | 杭州奥立达电梯有限公司 | Protection device for preventing accidental movement of lift car |
| CN204980687U (en) * | 2015-07-10 | 2016-01-20 | 张黎明 | Prevent elevator car unexpected movement safety device under door open mode |
-
2015
- 2015-07-10 CN CN201510402473.9A patent/CN104944242A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2895356Y (en) * | 2006-05-10 | 2007-05-02 | 上海永大电梯设备有限公司 | Falling-proof plug device for elevator cage |
| CN202609730U (en) * | 2012-04-06 | 2012-12-19 | 东南电梯股份有限公司 | Service lift special for nuclear power plant |
| CN103147639A (en) * | 2013-04-02 | 2013-06-12 | 国强建设集团有限公司 | Bolt for passenger-goods lift in construction site |
| CN103395667A (en) * | 2013-08-21 | 2013-11-20 | 上海微频莱机电科技有限公司 | Safety protection mechanism for accidental moving of elevator car |
| CN203833409U (en) * | 2014-05-07 | 2014-09-17 | 杭州奥立达电梯有限公司 | Protection device for preventing accidental movement of lift car |
| CN104016204A (en) * | 2014-06-26 | 2014-09-03 | 申龙电梯股份有限公司 | Cage flat-layer-falling prevention device in linkage with door motor |
| CN204980687U (en) * | 2015-07-10 | 2016-01-20 | 张黎明 | Prevent elevator car unexpected movement safety device under door open mode |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668384A (en) * | 2016-04-05 | 2016-06-15 | 日立电梯（中国）有限公司 | Elevator car and method for preventing elevator car from accidental movement |
| CN106006284A (en) * | 2016-06-28 | 2016-10-12 | 昆山德标机电有限公司 | Elevator safety protection system |
| CN106429708A (en) * | 2016-09-29 | 2017-02-22 | 克莱斯电梯（中国）有限公司 | Goods elevator for preventing accidents caused by accidental car movement |
| CN106744134A (en) * | 2017-03-28 | 2017-05-31 | 广东铃木电梯有限公司 | A kind of non-stop formula car accidental movement protected mode, device and its driving method |
| CN107352370A (en) * | 2017-07-31 | 2017-11-17 | 快意电梯股份有限公司 | Prevent the protection device of accidental movement of elevator cage |
| CN107352370B (en) * | 2017-07-31 | 2023-09-05 | 快意电梯股份有限公司 | Protection device for preventing accidental movement of elevator car |
| CN107879218A (en) * | 2017-12-18 | 2018-04-06 | 康达电梯有限公司 | A kind of used during elevator falling protection device |
| CN107879218B (en) * | 2017-12-18 | 2023-08-18 | 康达电梯有限公司 | Elevator fall protection device |
| CN108263994A (en) * | 2017-12-29 | 2018-07-10 | 江苏昆山通用电气有限公司 | Construction of cable run lifting platform |
| CN109534126A (en) * | 2018-11-02 | 2019-03-29 | 李以仁 | The anti-riot flushing device of elevator |
| CN109969900A (en) * | 2019-04-26 | 2019-07-05 | 湖南省特种设备检验检测研究院邵阳分院 | A kind of accidental movement of elevator cage protective device |
| CN109969900B (en) * | 2019-04-26 | 2024-02-02 | 湖南省特种设备检验检测研究院 | Unexpected protection device that removes of elevator car |
| CN110937546A (en) * | 2019-11-29 | 2020-03-31 | 徐州恒佳机械科技有限公司 | Mine machinery lifting self-locking device |
| CN111217222A (en) * | 2020-03-17 | 2020-06-02 | 湖州职业技术学院 | Protection device and elevator |
| CN112125106A (en) * | 2020-09-23 | 2020-12-25 | 福建省特种设备检验研究院 | Anti-shearing protection device based on elevator car door linkage |
| CN113307132B (en) * | 2021-05-25 | 2022-09-02 | 天津市特种设备监督检验技术研究院(天津市特种设备事故应急调查处理中心) | Safety elevator |
| CN113307132A (en) * | 2021-05-25 | 2021-08-27 | 天津市特种设备监督检验技术研究院(天津市特种设备事故应急调查处理中心) | Safety elevator |
| CN114590666A (en) * | 2022-03-15 | 2022-06-07 | 西尼机电（杭州）有限公司 | Elevator with anti-shearing protection function of car locking |
| CN114590666B (en) * | 2022-03-15 | 2024-02-23 | 西尼机电（杭州）有限公司 | Elevator with car locking function anti-shearing protection |
| CN115650017A (en) * | 2022-12-14 | 2023-01-31 | 南通勇振机电有限公司 | Elevator car safety arrangement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104944242A (en) | Safety device for preventing accidental movement of lift car in door opening state | |
| CN204980687U (en) | Prevent elevator car unexpected movement safety device under door open mode | |
| CN101143670A (en) | Electrical protection method and device during frequency-changing elevator mechanical brake disabling | |
| CN105000446A (en) | Device for preventing elevator car from moving accidentally | |
| CN104118784B (en) | A kind of flat bed anti-slip dynamic method and device of elevator | |
| CN105984775A (en) | Elevator rescue system | |
| CN204958047U (en) | Device for preventing lift car of lift from accidentally moving | |
| CN204778136U (en) | Prevent unexpected automatically controlled braking safety device who moves of elevator car | |
| CN202558434U (en) | Manual door locking device of elevator door | |
| US8191689B2 (en) | Elevator safety rescue system | |
| CN205222343U (en) | Elevator safety protection device | |
| EP3495302B1 (en) | Elevator apparatus and method | |
| ES2403162T3 (en) | Procedure and safety device for maintenance at the level of an elevator car in a landing on the ground floor | |
| CN112456269B (en) | Intelligent braking system | |
| CN104876105A (en) | Hand-operated pressure relief device and method with second-level safety braking | |
| CN204022177U (en) | A kind of anti-slip dynamic device of flat bed of cabin elevator | |
| CN210084676U (en) | Emergency braking device for elevator car | |
| DE202016101183U1 (en) | Elevator with a safety controller for directly influencing the braking force | |
| CN106006284B (en) | A kind of elevator safety protection system | |
| CN205916866U (en) | Prevent unexpected mobile system of elevator car | |
| JP5040667B2 (en) | Elevator car rescue device | |
| CN105035906A (en) | Vertical lift elevator with anti-falling device | |
| CN105883531A (en) | Safe elevator capable of immediately stopping running through manual work | |
| CN213707450U (en) | Safe elevator car | |
| CN205061224U (en) | Unexpected controller that removes protection device of elevator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150930 |