CN105438914B - A kind of Lift car type elevator anti-falling safe system - Google Patents
A kind of Lift car type elevator anti-falling safe system Download PDFInfo
- Publication number
- CN105438914B CN105438914B CN201610007834.4A CN201610007834A CN105438914B CN 105438914 B CN105438914 B CN 105438914B CN 201610007834 A CN201610007834 A CN 201610007834A CN 105438914 B CN105438914 B CN 105438914B
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- Prior art keywords
- car
- elevator
- air bag
- door opening
- safe system
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Classifications
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- 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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
-
- 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
- B66B5/28—Buffer-stops for cars, cages, or skips
- B66B5/282—Structure thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
- B66B3/002—Indicators
-
- 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
- B66B5/08—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for preventing overwinding
- B66B5/10—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for preventing overwinding electrical
-
- 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
- B66B5/28—Buffer-stops for cars, cages, or skips
Landscapes
- Cage And Drive Apparatuses For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
Present invention relates particularly to a kind of Lift car type elevator anti-falling safe system, it is therefore an objective to provide a kind of simple in construction, safe and reliable, effectively the anti-falling safe system of protection passenger safety.The system includes air bag component, and the air bag component in air bag, the air bag including being provided with gas generator, igniter, and the igniter is by electronic controller control；The air bag component is arranged on below elevator door opening, in elevator sidewall in horizontally disposed putting hole, side wall relative to the elevator opposite side provided with putting hole is provided with groove, acceleration transducer, height sensor are set in the car, and the acceleration transducer, the output signal of height sensor send electronic controller to.When car falls, one or the several air bag component action nearest away from car below, the speed for making car fall is decreased to stop rapidly, because the shock of a fall power of car is smaller, can be effectively protected passenger's body safety.
Description
Technical field
The present invention relates to elevator safety technical field, and in particular to a kind of Lift car type elevator anti-falling safe system.
Background technology
Current Lift car type elevator is designed with emergency braking apparatus, safety failure is occurring, when such as elevator speed is abnormal, leads to
Braking often is produced by brake shoe gripping elevator guide rails, but when cage guide is broken, emergency braking apparatus can not work, and work as sedan-chair
When railway carriage or compartment is in higher floor, the safety of passenger can not be guaranteed.In guide rail fracture, in the case that car falls, to sedan-chair
The safety precautions of passenger has following several in railway carriage or compartment：Buffer unit, such as prior art are installed in cabin elevator bottom
In CN201320894008, air bag component is set in the bottom of car, by the slow of cage bottom or elevator bottom when falling
Flushing device alleviates impulsive force during elevator landing, and this safeguard measure can be protected for the relatively low Lift car type elevator of floor to be multiplied
Visitor, but for the higher Lift car type elevator of floor, impulsive force when it falls is very big, and huge be used to is produced when car is fallen
Property, buffer unit is difficult often to play a protective role, and causes passenger by grievous injury, and if to protect passenger, is then buffered
The cost of device can be very high.And car can not be braked in way of falling, elevator related equipment also can because shock of a fall power is excessive and
Damage, such as car door is difficult to open after damaging, rescue is difficult.The progress while such safeguard measure can only often fall to car
Protection, and when car is rushed to summit, it is necessary to set up buffer unit in car top and elevator top.
Another safety precautions is that arrestment mechanism is set on the outside of car, is connect by arrestment mechanism with elevator sidewall
Touch friction catch.Such as the kind protection device in prior art CN200410014245, there is certain length containing one
There is the groove for containing cage guide on clamping body, the one side of clamping body one end.The width of the groove is more than cage guide
Width.This protection device for preventing elevator overspeed, falling, not only adaptability it is good, using scope is wide, production cost is low, also
Production routine can be simplified.Occurs braking when hypervelocity, situation of falling suitable for lift car.Technology in the patent may go out
Now because of the danger that arrestment mechanism can not being acted and failed, while access to elevators side wall often causes coefficient of friction to drop because moist
It is low, increase the risk of arrestment mechanism failure.When car is braked in elevator, also after uncontrollable braking car stop place
Put, such as the position that car is rested between two floors, then car door is difficult to open, and rescue work is difficult.
Also a kind of mode is the safety rails contact friction catch being separately provided in elevator, so can additionally be increased
A set of guide rail mechanism, adds equipment cost and later maintenance expense.
The content of the invention
It is an object of the present invention to provide a kind of simple in construction, cost is low, safe and reliable, the fall arrest of passenger safety is effectively protected
Security system.
For achieving the above object, the technical solution adopted in the present invention is：A kind of Lift car type elevator anti-falling safe
System, a kind of Lift car type elevator anti-falling safe system, including air bag component, the air bag component include air bag, described
Gas generator, igniter are provided with air bag, the igniter is by electronic controller control；The air bag component is set
Put below elevator door opening, in elevator sidewall in horizontally disposed putting hole, it is another relative to the elevator provided with putting hole
The side wall of side is provided with groove, and after the air bag ejection, its one end is headed into groove；The upper surface of the air bag with
When cage bottom is contacted, cab is located at normal stop layers position；Acceleration transducer, height sensor are set in the car,
The acceleration transducer, the output signal of height sensor send electronic controller to.
It is preferred that, putting hole, air bag component, groove are set below the elevator door opening of every floor, or adjacent several
Putting hole, air bag component, groove are set below the elevator door opening of one of stop layers between stop layers.
It is preferred that, the display of acceleration sensor outputs signals, the display can be received by being set in the car
Show maximum safe acceleration value when actual acceleration value and car when car rises, declined rise, declined.
It is preferred that, emergency switch is provided with the car, the output signal of the emergency switch sends electronic controller to.
It is preferred that, the cage bottom and top are provided with elastic buffering pad, and the elastic buffering pad is by cage bottom and top
The rigid element in portion is fully wrapped around.
It is preferred that, the elevator sidewall provided with elevator door opening side is provided with limiting plate, and the limiting plate is located at putting hole
Lower section, the upper end of the limiting plate provided with the elevator sidewall of elevator door opening side with being hinged, the middle part of the limiting plate and the
One end of one spacing connecting rod is hinged, the other end and the second spacing rod hinge connection of the first spacing connecting rod, and described second is spacing
Connecting rod is hinged with the elevator sidewall provided with elevator door opening side, with the second spacing connecting rod middle part in the middle part of the first spacing connecting rod
Connected by limit spring；The bottom of the limiting plate is provided with phase in permanent magnet, the elevator sidewall provided with elevator door opening side
Position is answered to be provided with electromagnet, the electromagnet is by electronic controller control.
It is preferred that, the one end of the middle part of the second spacing connecting rod also with return drawstring is connected, the return drawstring it is another
One ends wound is on roller.
It is preferred that, the one end of the putting hole away from elevator door opening is provided with the installation check hole of vertical direction, the installation
Inspection hole upper end sets transparency window, and the upper surface of the transparency window and the stop layers floor surface are highly consistent.
It is preferred that, the upper surface parcel elastic buffering pad of the limiting plate.
It is preferred that, during the car tenesmus, one below or several limiting plates opening, when the car is rushed to summit, its
The limiting plate of top is not opened.
The invention has the advantages that：When car falls, one or the several gas nearest away from car below
Capsule component acts airbag opening immediately, and the speed for making car fall is decreased to stop rapidly, due to the shock of a fall of car
Power is smaller, can be effectively protected passenger's body safety, the overall structure of car is also not damaged, simultaneously because air bag group
Part is arranged on below stop layers elevator door opening, when car is fallen on air bag, and car door is adapted with elevator door position, rescues people
Member can open car door rescue passenger rapidly.When car is rushed to summit, one above it or several air bag components are immediately
Airbag opening is acted, passenger is effectively protected.
Brief description of the drawings
Fig. 1 is structural representation when car is normally run downwards；
Fig. 2 is the structural representation of security system action when car falls；
Fig. 3 is structural representation when car is normally run up；
Fig. 4 is the structural representation of security system action when car is rushed to summit；
Fig. 5 is acceleration transducer, height sensor signal transmission schematic diagram；
Fig. 6 is limiting plate original state schematic diagram when car is normally run；
Fig. 7 is limiting plate open mode schematic diagram when car drops.
Embodiment
As Figure 1-5, a kind of Lift car type elevator anti-falling safe system, including air bag component 1, the air bag component
1 in air bag 11, the air bag 11 including being provided with gas generator, igniter, and the igniter is by electronics control
Device 12 processed is controlled；The air bag component 1 is arranged on below elevator door opening, in elevator sidewall in horizontally disposed putting hole 31,
Side wall relative to the elevator opposite side provided with putting hole 31 is provided with groove；Acceleration transducer is set in the car 51
53rd, height sensor 54, the acceleration transducer 53, the output signal of height sensor 54 send electronic controller 12 to.
The described one end of putting hole 31 away from elevator door opening 52 is provided with the installation check hole 32 of vertical direction, the installation check hole 32
End sets transparency window 33, and the upper surface of the transparency window 33 and the stop layers floor surface are highly consistent.Installation and maintenance air bag group
During part 1, it is only necessary to operated by installation check hole 32.
The elevator is provided with groove relative to the side wall of the opposite side provided with putting hole 31, when air bag 11 is opened
When, its one end is headed into groove, and at this moment the upper surface of air bag 11 is contacted with the bottom of car 51, cab 51 is rested on normally
Stop layers position, position between car door and elevator door opening 52 is in car Normal residence position, convenient rescue
Personnel open car door and carried on rescue work in time.
When the car 51 falls, electronic controller 12 receives acceleration transducer 53, the height sensor 54 of car 51
Output signal, the air bag 11 positioned at the lower section of car 51 nearest one or several air bag components 1 ejects；The car 51
When rushing to summit, electronic controller 12 receives the acceleration transducer 53 of car 51, the output signal of height sensor 54, positioned at car
The air bag 11 of 51 tops nearest one or several air bag components 1 is ejected., can be with for the car 51 that load capacity is larger
Putting hole 31, air bag component 1, groove are arranged on to the lower section of elevator door opening 52 of every floor；For the less car of load capacity
51, putting hole 31, air bag component 1, groove can also be arranged on to one of elevator door opening between adjacent several stop layers
52 lower sections, can so reduce equipment and install maintenance cost.
Acceleration transducer 53 is set in the car 51, can be the inertia-type acceleration sensing set in car 51
Device or distance measuring type acceleration transducer is set in cage bottom, the cage bottom is additionally provided with height sensor 54, institute
It can be laser ranging formula or ultrasonic ranging formula, the building that car can also be used original to state height sensor 54
Layer position signalling as car altitude signal.The acceleration transducer 53, the output signal of height sensor 54 use nothing
Line mode sends electronic controller 12 to.
As shown in Figure 6,7, limiting plate 2 can also be set in the elevator sidewall provided with the side of elevator door opening 52, it is described
Limiting plate 2 is located at the lower section of putting hole 31, and the upper end of the limiting plate 2 is cut with scissors with the elevator sidewall provided with the side of elevator door opening 52
Connect, the middle part of the limiting plate 2 and one end of the first spacing connecting rod 205 are hinged, the other end of the first spacing connecting rod 205 with
Second spacing connecting rod 206 is hinged, and the second spacing connecting rod 206 is hinged with the elevator sidewall provided with the side of elevator door opening 52,
The first spacing middle part of connecting rod 205 is connected with the second spacing middle part of connecting rod 206 by limit spring 201；The limiting plate 2
Bottom is provided with relevant position in permanent magnet 202, the elevator sidewall provided with the side of elevator door opening 52 and is provided with electromagnet 203, described
Electromagnet 203 is controlled by electronic controller 12.
Under normal circumstances, electromagnet 203 is powered, and is adsorbed with permanent magnet 202, and limiting plate 2 is not switched on, when car 51 falls
When, electronic controller 12 sends signal, makes one or the dead electricity of several electromagnet 203 of the lower section of car 51, limiting plate 2 is in spacing bullet
In the presence of spring 201, acted together with the first spacing connecting rod 205, the second spacing connecting rod 206, until limiting plate 2 is located at horizontal position
Put, and contacted with the lower surface of air bag 11.Limiting plate 2 and air bag 11 can be so allowed to bear what car 51 fell jointly
Impulsive force, increases security.When the shock of a fall power of car 51 is excessive, when an air bag 11 for making below is damaged, under it
One limiting plate 2 of side pushes back original position by car 51, can't damage limiting plate 2, and at this moment car 51 is by by below its
The air bag 11 and limiting plate 2 opened in his stop layers enter row buffering.When car 51 is rushed to summit, fallen because its impulsive force is less than
When impulsive force, then only withstood shocks power by the air bag 11 of the top of car 51, be now placed in the electricity of the top of car 51
Magnet 203 still in electricity condition.The one end of the second spacing middle part of connecting rod 206 also with return drawstring 207 is connected, described time
The other end of position drawstring 207 is wrapped on roller, and the roller, which is placed on, facilitates manually-operated position, when limiting plate 2 is opened
Afterwards, return drawstring 207 can be tightened up by manual rotation's roller, limiting plate 2 is rotated to initial position.
During elevator normally travel, air bag component 1 and limiting plate 2 are failure to actuate, when the guide rail fracture of car 51 causes car 51
When falling, acceleration transducer 53, the collection acceleration magnitude of height sensor 54 and car height in car 51, according to acceleration
Size and the location of car, acceleration abnormal signal is passed to the one or more electricity for being now placed in the lower section of car 51
Sub-controller 12, electronic controller 12, which sends instruction, makes ignition device, and the gas that blast is produced makes air bag 11 in electricity
Open in terraced passage, its one end is headed into groove, while electronic controller 12 sends signal, allow the dead electricity of electromagnet 203, limiting plate
2 rotate to horizontality in the presence of limit spring 201, and are contacted with the lower surface of air bag 11.In the He of air bag 11
Under the cushioning effect of limiting plate 2, car 51 is parked in corresponding stop layers, now can easily open the elevator door and car of the stop layers
Door, carries out rescue action.When car 51 hinders for some reason rushes to summit, acceleration transducer 53, height sensor 54 in it are gathered
Acceleration magnitude and car height, according to the location of size and car of acceleration, this is passed to by acceleration abnormal signal
When one or more electronic controllers 12 above car, electronic controller 12, which sends instruction, makes ignition device, beats
Air bag 11 is opened, makes car 51 stop rushing to summit.
The display 55 of the output signal of acceleration transducer 53, the display 55 can be received by being set in the car 51
Maximum safe acceleration value when actual acceleration value and car 51 when display car 51 rises, declined rise, declined.Institute
State and emergency switch 56 is additionally provided with car 51, the output signal of the emergency switch 56 sends electronic controller 12 to.If sedan-chair
When railway carriage or compartment is fallen or rushed to summit, acceleration transducer 53 hinders for some reason does not send instructions to electronic controller 12, at this moment in car
The car acceleration value that interior passenger can be shown by observing on display 55 judges whether danger occur, and is manually pressed by tight
Anxious switch 56, the emergency switch 56 sends instruction to the electronic controller 12 of relevant position, carries out brake hard.
More preferable embodiment is that the bottom of car 51 and top are provided with elastic buffering pad, and the elastic buffering pad can
To be made of elastomeric material or foamed material, the elastic buffering pad is by car bottom 51 and the rigid element at top
It is fully wrapped around, so can be when car 51 and air bag 11 be contacted, effective protecting safety airbag 11 is not by the bottom of car 51
Or the rigid element at top is punctured, while further functioning as cushioning effect, reduce the impulsive force that passenger is subject to.The limiting plate 2
Upper surface can also wrap up elastic buffering pad, so can not be limited plate 2 with protecting safety airbag 11 punctures, while further
Increase buffer capacity.
Claims (8)
1. a kind of Lift car type elevator anti-falling safe system, including air bag component (1), the air bag component (1) include substitute
Gas generator, igniter are provided with capsule (11), the air bag (11), the igniter is by electronic controller (12)
Control；It is characterized in that：The air bag component (1) is arranged on below elevator door opening (52), horizontally disposed in elevator sidewall
In putting hole (31), the side wall relative to the elevator opposite side provided with putting hole (31) is provided with groove, the air bag
(11) after ejecting, its one end is headed into groove；When the upper surface of the air bag (11) is contacted with car (51) bottom, car
(51) it is located at normal stop layers position；Acceleration transducer (53), height sensor (54) are set in the car (51), it is described
Acceleration transducer (53), the output signal of height sensor (54) send electronic controller (12) to；In the elevator of every floor
Putting hole (31), air bag component (1), groove be set below door opening (52), or one of them between adjacent several stop layers
Putting hole (31), air bag component (1), groove are set below the elevator door opening (52) of stop layers；
Elevator sidewall provided with elevator door opening (52) side is provided with limiting plate (2), and the limiting plate (2) is located at putting hole
(31) lower section, the upper end of the limiting plate (2) is hinged with the elevator sidewall provided with elevator door opening (52) side, the limiting plate
(2) middle part and one end of the first spacing connecting rod (205) are hinged, the other end of the first spacing connecting rod (205) and the second limit
Position connecting rod (206) is hinged, and the second spacing connecting rod (206) is hinged with the elevator sidewall provided with elevator door opening (52) side,
With being connected in the middle part of the second spacing connecting rod (206) by limit spring (201) in the middle part of the first spacing connecting rod (205)；The limit
The bottom of position plate (2) is provided with permanent magnet (202)；Relevant position is provided with electricity in elevator sidewall provided with elevator door opening (52) side
Magnet (203), the electromagnet (203) is by electronic controller control.
2. a kind of Lift car type elevator anti-falling safe system according to claim 1, it is characterised in that：The car (51)
Interior setting can receive the display (55) of acceleration transducer (53) output signal, and the display (55) is shown on car
Maximum safe acceleration value when actual acceleration value and car when rising, declining rise, declined.
3. a kind of Lift car type elevator anti-falling safe system according to claim 2, it is characterised in that：The car (51)
Interior to be provided with emergency switch (56), the output signal of the emergency switch (56) sends electronic controller (12) to.
4. a kind of Lift car type elevator anti-falling safe system according to claim 3, it is characterised in that：The car (51)
Bottom and top are provided with elastic buffering pad, and the elastic buffering pad wraps the rigid element of car (51) bottom and top completely
Wrap up in.
5. a kind of Lift car type elevator anti-falling safe system according to claim 1, it is characterised in that：Described second is spacing
The one end of the middle part of connecting rod (206) also with return drawstring (207) is connected, and the other end of the return drawstring (207) is wrapped in rolling
On cylinder.
6. a kind of Lift car type elevator anti-falling safe system according to claim 1, it is characterised in that：The putting hole
(31) one end away from elevator door opening (52) is provided with the installation check hole (32) of vertical direction, installation check hole (32) upper end
Transparency window (33) is set, and the upper surface of the transparency window (33) and the stop layers floor surface are highly consistent.
7. a kind of Lift car type elevator anti-falling safe system according to claim 1, it is characterised in that：The limiting plate
(2) upper surface parcel elastic buffering pad.
8. a kind of control method of Lift car type elevator anti-falling safe system according to claim 1, it is characterised in that：Institute
When stating car (52) tenesmus, below one or several limiting plates (2) are opened, when the car (52) is rushed to summit, above it
Limiting plate (2) is not opened.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610007834.4A CN105438914B (en) | 2016-01-07 | 2016-01-07 | A kind of Lift car type elevator anti-falling safe system |
| CN201710723370.1A CN107473050B (en) | 2016-01-07 | 2016-01-07 | Control method of anti-falling safety system of car type elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610007834.4A CN105438914B (en) | 2016-01-07 | 2016-01-07 | A kind of Lift car type elevator anti-falling safe system |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710723370.1A Division CN107473050B (en) | 2016-01-07 | 2016-01-07 | Control method of anti-falling safety system of car type elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105438914A CN105438914A (en) | 2016-03-30 |
| CN105438914B true CN105438914B (en) | 2017-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710723370.1A Active CN107473050B (en) | 2016-01-07 | 2016-01-07 | Control method of anti-falling safety system of car type elevator |
| CN201610007834.4A Active CN105438914B (en) | 2016-01-07 | 2016-01-07 | A kind of Lift car type elevator anti-falling safe system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710723370.1A Active CN107473050B (en) | 2016-01-07 | 2016-01-07 | Control method of anti-falling safety system of car type elevator |
Country Status (1)
| Country | Link |
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| CN (2) | CN107473050B (en) |
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| CN105858401A (en) * | 2016-06-08 | 2016-08-17 | 高清春 | Ejection air bag for elevator shaft |
| CN105883540A (en) * | 2016-06-27 | 2016-08-24 | 爱默生电梯有限公司 | Elevator with safety protection device |
| CN106044518A (en) * | 2016-07-11 | 2016-10-26 | 上海海事大学 | Safety device for preventing collapse of cover plate of escalator |
| CN106744133A (en) * | 2017-02-24 | 2017-05-31 | 江南嘉捷电梯股份有限公司 | A kind of collapsible elevator hoistways fall arrest is met an urgent need protector |
| CN106672734A (en) * | 2017-03-23 | 2017-05-17 | 沧州市金田科贸工程有限公司 | Elevator landing door by-mistake opening fall-preventing system |
| CN107352346A (en) * | 2017-08-01 | 2017-11-17 | 扬州工业职业技术学院 | A kind of emergency staircase of brake hard |
| CN108996358B (en) * | 2017-10-12 | 2020-04-21 | 沈小凤 | Safety anti-falling elevator |
| CN107720480B (en) * | 2017-11-09 | 2023-09-01 | 安徽工程大学 | Retarding landing device |
| CN107879217B (en) * | 2017-12-18 | 2024-02-06 | 康达电梯有限公司 | Elevator that security is high |
| CN108217378B (en) * | 2018-02-11 | 2024-01-02 | 广州特种机电设备检测研究院 | Elevator with anti-falling safety device |
| CN108328452A (en) * | 2018-03-30 | 2018-07-27 | 迅立达智能装备制造科技有限公司 | A kind of device for preventing elevator from falling for elevator tower |
| CN108843717B (en) * | 2018-04-24 | 2021-06-01 | 邯郸慧龙电力设计研究有限公司 | Safety airbag protection system arranged on tripod |
| CN108946378A (en) * | 2018-08-17 | 2018-12-07 | 寿县理康信息技术服务有限公司 | A kind of elevator protection system based on independent air bags |
| CN109707322B (en) * | 2018-12-08 | 2024-06-21 | 深圳市勘察研究院有限公司 | Karst cave isolation device and karst cave isolation method using same |
| CN109399416B (en) * | 2018-12-12 | 2020-05-08 | 浙江鲸叹科技有限公司 | Car self-locking mechanism |
| CN110937485B (en) * | 2019-12-10 | 2021-08-31 | 湖北铜都通用电梯有限公司 | Elevator with a movable elevator car |
| EP4008667B1 (en) * | 2020-12-04 | 2024-06-12 | Otis Elevator Company | Emergency terminal deceleration in elevator systems |
| CN114766761A (en) * | 2022-04-26 | 2022-07-22 | 无锡永骅信息科技有限公司 | Riding clothes with safety air bag |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107473050B (en) | 2019-01-08 |
| CN107473050A (en) | 2017-12-15 |
| CN105438914A (en) | 2016-03-30 |
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Effective date of registration: 20201029 Address after: 629200 Hedong Road, Shehong Economic Development Zone, Sichuan, Suining, China, No. 9 Patentee after: SICHUAN AOEBO ELEVATOR Co.,Ltd. Address before: 610039, No. 999, Jin Zhou road, Jinniu District, Sichuan, Chengdu Patentee before: XIHUA University |
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