WO2020238079A1 - 一种电梯故障救援系统及电梯 - Google Patents

一种电梯故障救援系统及电梯 Download PDF

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Publication number
WO2020238079A1
WO2020238079A1 PCT/CN2019/119838 CN2019119838W WO2020238079A1 WO 2020238079 A1 WO2020238079 A1 WO 2020238079A1 CN 2019119838 W CN2019119838 W CN 2019119838W WO 2020238079 A1 WO2020238079 A1 WO 2020238079A1
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Prior art keywords
elevator
car
rescue
encoder
fault
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PCT/CN2019/119838
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English (en)
French (fr)
Inventor
张陈
张昱晨
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苏州台菱电梯有限公司
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Publication of WO2020238079A1 publication Critical patent/WO2020238079A1/zh

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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
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0018—Devices monitoring the operating condition of the elevator system
    • B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
    • 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

Definitions

  • the application relates to an elevator fault rescue system and an elevator.
  • the technical problem to be solved by this application is to provide an elevator fault rescue system and an elevator.
  • an elevator fault rescue system includes:
  • the elevator controller is used to judge whether the elevator has a fault, if there is a fault, the elevator will be switched to the intelligent rescue state, if there is no fault, then the elevator will be controlled to run normally;
  • Magnetic scale sensor used to collect elevator car running speed signal and elevator position signal, and transmit to the elevator controller
  • Encoder used to collect elevator car running speed signal
  • the elevator controller is also used to determine the speed measured by the magnetic scale sensor and encoder at one time. When the measured speed is greater than the set value, control the elevator to enter the secondary rescue state. When the magnetic scale sensor and encoder When the speed measured by the encoder is not greater than the set value, control the elevator to run to leveling.
  • the elevator controller is also used to determine the speed measured by the magnetic scale sensor and encoder when the elevator enters the secondary rescue state. When the speed is greater than the set value, control the elevator to stop automatic rescue and wait for manual rescue.
  • the elevator controller is also used to control the elevator car to open the car door and wait for maintenance after the elevator is controlled to run to the leveling floor.
  • the set value is 0.3 m/s.
  • the interval between the first determination and the second determination of the elevator controller is 10s.
  • the application also provides an elevator, including the elevator fault rescue system.
  • the elevator includes the car, the car includes a car liner, an outer shell arranged outside the car liner, the top wall of the car liner and the outer shell A plurality of upper spring dampers are installed between the top plates, and a plurality of lower spring dampers are installed between the bottom wall of the car liner and the bottom plate of the outer shell,
  • a plurality of electromagnetic dampers and piston rods are arranged between the side wall of the car and the side wall of the housing, and the upper end of the piston rod is installed in the electromagnetic damper and can run along the
  • the electromagnetic damper moves up and down, the lower side of the bottom plate of the housing is also provided with an impact plate, the lower end of the piston rod passes through the bottom plate of the housing and then is fixedly connected to the impact plate,
  • the car also includes an inflating system, the inflating system includes an inflator installed between the bottom wall of the outer shell and the bottom wall of the car liner, the bottom plate and the impact plate arranged on the outer shell Between the airbags, the inflator can inflate the airbags, and the upper surface of the impact plate is also provided with a plurality of mounting blocks that can be embedded into the lower surface of the shell bottom plate.
  • the inflatable system has an inflated state and a folded state.
  • the airbag When the inflatable system is in the folded state, the airbag is folded between the shell bottom plate and the impact plate, and the electromagnetic damper There is no force on the piston rod, and the mounting block of the impact plate is embedded on the bottom of the housing; when the inflation system is in an inflated state, the airbag is in a bounced state under the inflation of the inflator, so The impact plate is ejected downward relative to the bottom plate of the housing under the action of the airbag, and when the piston rod moves up and down relative to the electromagnetic damper, it receives the damping force of the electromagnetic damper.
  • the elevator controller controls the The inflator inflates the airbag to make the inflatable system in an inflated state.
  • the elevator controller controls the electromagnetic damper to form a damping force on the piston rod.
  • An elevator fault rescue system of the present application when the elevator encounters a power supply system failure or an elevator soft failure (non-elevator safety circuit and door lock circuit), it can quickly respond within 5-10 seconds, switch control, and fail
  • the leveling device intelligently judges the running speed to the leveling position and opens the car door and hall door, allowing passengers to safely get out of the elevator, greatly reducing the occurrence of trapped people.
  • the speed collection is completed by the magnetic scale and the encoder in two ways to ensure the safe and automatic rescue speed of the elevator, effectively prevent the speed from losing control, and make it safer and more stable.
  • Figure 1 is a schematic flow diagram of an elevator fault rescue system.
  • Fig. 2 is a structural schematic diagram of the car of the present application when the airbag is not popped out.
  • Fig. 3 is a schematic structural diagram of the car of the present application in an airbag ejection state.
  • the present application provides an elevator fault rescue system.
  • the system includes an elevator controller for judging whether all elevators have failed. If a failure occurs, the elevator will be switched to the intelligent rescue state. If a fault occurs, it controls the normal operation of the elevator car; the magnetic scale sensor is used to collect the elevator car running speed signal and the elevator car position signal, and send it to the elevator controller; the encoder is used to collect the elevator operation Speed signal, the elevator controller is also used to determine the speed measured by the magnetic scale sensor and encoder at one time. When the measured speed is greater than the set value, control the elevator to enter the secondary rescue state. When the speed measured by the ruler sensor and encoder is not greater than the set value, the elevator is controlled to run to leveling.
  • the elevator controller is also used to determine the speed measured by the magnetic scale sensor and the encoder when the elevator enters the secondary rescue state. When the speed measured by the magnetic scale sensor and the encoder is greater than the set speed When setting the value, control the elevator to stop automatic rescue and wait for manual rescue.
  • the elevator controller is also used to control the elevator to open the car door and wait for maintenance after the elevator is controlled to run to the leveling floor.
  • the stated setting value is 0.3m/s.
  • the interval between the first determination and the second determination of the elevator controller is 10s.
  • An elevator fault rescue system of the present application when the elevator encounters a power supply system failure or an elevator soft failure (non-elevator safety circuit and door lock circuit), it can quickly respond within 5-10 seconds, switch control, and fail
  • the leveling device intelligently judges the running speed to the leveling position and opens the car door and hall door, allowing passengers to safely get out of the elevator, greatly reducing the occurrence of trapping accidents.
  • the speed collection is completed by the magnetic scale and the encoder in two ways, ensuring the safe and automatic rescue speed of the elevator, effectively preventing the speed from losing control, and making it safer and more stable.
  • the application also provides an elevator, including the elevator fault rescue system.
  • the elevator includes the car, the car includes a car liner 51, a shell 52 arranged outside the car liner 51, and the top wall of the car liner 51 is connected to the A plurality of upper spring dampers 53 are installed between the top plate of the housing 52, and a plurality of lower spring dampers 55 are provided between the bottom wall of the car liner 51 and the bottom plate 58 of the housing 52, A plurality of electromagnetic dampers 54 and a piston rod 56 are arranged between the side wall of the car and the side wall of the housing 52, and the upper end of the piston rod 56 is installed in the electromagnetic damper 54. It can move up and down along the electromagnetic damper 54.
  • An impact plate is provided on the lower side of the bottom plate 58 of the housing 52.
  • the lower end of the piston rod 56 passes through the bottom plate 58 of the housing 52.
  • the car Fixedly connected to the impact plate, the car also includes an inflation system, and the inflation system includes an inflation system installed between the bottom plate 58 of the housing 52 and the bottom wall of the car liner 51 Device 59, an airbag 60 arranged between the bottom plate 58 of the housing 52 and the impact plate, the inflator 59 can inflate the airbag 60, and the upper surface of the impact plate is also provided with a plurality of
  • the mounting block 57 can be inserted into the bottom surface of the bottom plate 58 of the housing 52.
  • the inflatable system has an inflated state and a folded state.
  • the airbag 60 When the inflatable system is in the folded state, the airbag 60 is folded between the bottom plate 58 of the housing 52 and the impact plate.
  • the electromagnetic damper 54 has no force on the piston rod 56, and the mounting block 57 of the impact plate is embedded on the bottom plate 58 of the housing 52; when the inflation system is in an inflated state, the airbag 60 is inflated in the inflator 59 Under the action of the airbag 60, the impact plate is ejected downward relative to the bottom plate 58 of the housing 52.
  • the piston rod 56 moves up and down relative to the electromagnetic damper 54, it is affected by the electromagnetic damper. 54 damping force.
  • the elevator controller controls the inflator 59 inflates the airbag 60 to make the inflation system in an inflated state.
  • the elevator controller controls the electromagnetic damper 54 to form a damping force on the piston rod 56.
  • the electromagnetic damper 54 controls the formation of damping force by turning on and off the current.
  • the car of the present application is equipped with an inflating system.
  • the airbag 60 can bounce off and play a buffering effect on the car. Since the airbag 60 is provided outside the car, when the airbag 60 bounces, it will not cause damage to the people in the car due to the huge impact force.
  • the airbag 60 is arranged between the bottom of the casing 52 and the impact plate, and the impact plate directly contacts Touching the bottom of the ladder well protects the inflated airbag 60 to prevent sharp objects in the ladder well from puncturing the airbag 60.
  • the upper and lower surfaces that the airbag 60 touches are smooth surfaces (that is, the surface of the housing 52). The bottom and the upper surface of the impact plate), so that the airbag 60 receives uniform force, and maximizes the cushioning effect of the airbag 60.
  • the electromagnetic damper 54 provided in the present application can further play a buffering effect.
  • the electromagnetic damper 54 conducts after the airbag 60 is opened. Therefore, during the process of opening the airbag 60, the electromagnetic damper 54 will not interfere with the piston rod 56. The damping force is generated without affecting the opening of the airbag 60.
  • the electromagnetic damper 54 is immediately in a conducting state.
  • the electromagnetic damper 54 generates a damping force on the piston rod 56 to play a buffering effect.
  • the piston rod 56 can only move up and down relative to the electromagnetic damper 54, it can limit the impact plate.
  • the impact plate moves downward relative to the bottom of the housing 52. Due to the limitation of the piston rod 56 and the electromagnetic damper 54, the impact plate can always be in a horizontal position, preventing the impact plate from tilting due to uneven force. Balance the force of the entire car.
  • the electromagnetic damper 54 of the present application interacts to protect the car to the greatest extent when the car falls to the ground at extreme speed.
  • the upper spring damper 53 and the lower spring damper 55 of the present application start during normal operation of the car.

Abstract

一种电梯故障救援系统及电梯，所述的系统包括，电梯控制器，用于判断电梯是否发生故障，若发生故障则将电梯切换至智能救援状态，若未发生故障，则控制电梯正常运行；磁栅尺传感器，用于采集电梯运行速度信号及电梯位置信号，并传送至所述的电梯控制器；编码器，用于采集电梯运行速度信号，所述的电梯控制器还用于一次判定所述的磁栅尺传感器及编码器所测的速度，当所测速度大于设定值时，控制电梯进入二次救援状态，当磁栅尺传感器及编码器所测的速度不大于设定值时，控制电梯运行至平层。该电梯故障救援系统，在电梯遇到供电系统故障或电梯软故障时，可迅速做出反应切换控制，故障平层装置智能判断运行速度到平层位置并打开轿门和厅门，让乘客安全走出电梯，大幅度降低困人事故发生。

Description

一种电梯故障救援系统及电梯 技术领域
本申请涉及一种电梯故障救援系统及电梯。
背景技术
常规情况下，如果在电梯控制系统发生编码器故障，或者某些变频器驱动硬件故障，为了保障安全是不允许进入故障救援状态的。因为一旦电梯系统不能有效的封星，编码器速度采集失效，电梯系统将产生飞车，导致安全事故。
发明内容
本申请要解决的技术问题是提供一种电梯故障救援系统及电梯。
为了解决上述技术问题，一种电梯故障救援系统，所述的系统包括，
电梯控制器，用于判断电梯是否发生故障，若发生故障则将电梯切换至智能救援状态，若未发生故障，则控制电梯正常运行；
磁栅尺传感器，用于采集电梯轿厢运行速度信号及电梯位置信号，并传送至所述的电梯控制器；
编码器，用于采集电梯轿厢运行速度信号，
所述的电梯控制器还用于一次判定所述的磁栅尺传感器及编码器所测的速度，当所测速度大于设定值时，控制电梯进入二次救援状态，当磁栅尺传感器及编码器所测的速度不大于设定值时，控制电梯运行至平层。
优选地，所述的电梯控制器还用于当所述的电梯进入二次救援状态时，二次判定磁栅尺传感器及编码器所测的速度，当磁栅尺传感器及编码器所测的速度大于设定值时，控制电梯停止自动救援，等待人工救援。
优选地，所述的电梯控制器还用于当控制电梯运行至平层后，控制轿厢打开轿门，等待维修。
优选地，所述的设定值为0.3m/s。
优选地，所述的电梯控制器的一次判定到二次判定之间的间隔为10s。
本申请还提供一种电梯，包括所述的电梯故障救援系统。
优选地，所述的电梯包括所述的轿厢，所述的轿厢包括轿厢内胆、设于轿厢内胆外的外壳，所述的轿厢内胆的顶壁与所述的外壳的顶板之间安装有多个上弹簧减振器，所述的轿厢内胆的底壁与所述的外壳的底板之间设置有多个下弹簧减振器，
所述的轿厢的侧壁，与外壳的侧壁之间设置有多个电磁阻尼器、活塞杆，所述的活塞杆的上端部安装至所述的电磁阻尼器内，并能够沿所述的电磁阻尼器上下移动，所述的外壳的底板的下侧还设置有一冲击板，所述的活塞杆的下端部穿过所述的外壳的底板后固定连接在所述的冲击板上，
所述的轿厢还包括一充气系统，所述的充气系统包括一安装在所述的外壳底板与轿厢内胆的底壁之间的充气装置、设于所述的外壳的底板与冲击板之间的气囊，所述的充气装置能够对所述的气囊充气，所述的冲击板的上表面还设置有多个能够嵌入外壳底板下表面的安装块。
优选地，所述的充气系统具有充气状态及折叠状态，当所述的充气系统处于折叠状态时，所述的气囊被折叠在所述的外壳底板与冲击板之间，所述的电磁阻尼器对活塞杆没有作用力，所述的冲击板的安装块嵌入所述的外壳底板上；当所述的充气系统处于充气状态时，所述的气囊在充气装置的充气下处于弹开状态，所述的冲击板在气囊的作用下相对所述的外壳的底板向下弹出，当所述的活塞杆相对电磁阻尼器上下运动时，受到电磁阻尼器的阻尼力。
优选地，当编码器所测的轿厢下降速度大于设定下坠速度，磁栅尺传感器所测的轿厢底部与梯井底部的距离小于设定距离时，所述的电梯控制器控制所述的充气装置对气囊充气，使充气系统处于充气状态，当所述的充气系统处于 充气状态后，所述的电梯控制器控制所述的电磁阻尼器对活塞杆形成阻尼力。
本申请的一种电梯故障救援系统，在电梯遇到供电系统故障或电梯软故障(非电梯安全回路和门锁回路)时，它可在5-10秒钟之内迅速作出反应切换控制，故障平层装置智能判断运行速度到平层位置并打开轿门和厅门，让乘客安全走出电梯大幅度降低困人事故发生。速度的采集由磁栅尺和编码器双路完成，保障电梯安全自动救援速度，有效预防速度失控，更安全稳定。
附图说明
图1是一种电梯故障救援系统的流程示意图。
图2是本申请的轿厢在气囊没有弹出状态的结构示意图。
图3是本申请的轿厢在气囊弹出状态的结构示意图。
51、轿厢内胆；52、外壳；53、上弹簧减振器；54、电磁阻尼器；55、下弹簧减振器；56、活塞杆；57、安装块；58、底板；59、充气装置；60、气囊。
具体实施方式
下面结合附图和具体实施例对本申请作进一步说明，以使本领域的技术人员可以更好地理解本申请并能予以实施，但所举实施例不作为对本申请的限定。
如图1所示，本申请提供了一种电梯故障救援系统，所述的系统包括，电梯控制器，用于判断电梯是都发生故障，若发生故障则将电梯切换至智能救援状态，若未发生故障，则控制电梯轿厢正常运行；磁栅尺传感器，用于采集电梯轿厢运行速度信号及电梯轿厢位置信号，并传送至所述的电梯控制器；编码器，用于采集电梯运行速度信号，所述的电梯控制器还用于一次判定所述的磁栅尺传感器及编码器所测的速度，当所测速度大于设定值时，控制电梯进入二次救援状态，当磁栅尺传感器及编码器所测的速度不大于设定值时，控制电梯运行至平层。所述的电梯控制器还用于当所述的电梯进入二次救援状态时，二次判定磁栅尺传感器及编码器所测的速度，当磁栅尺传感器及编码器所测的速度大于设定值时，控制电梯停止自动救援，等待人工救援。所述的电梯控制器还用于当控制电梯运行至平层后，控制电梯打开轿门，等待维修。所述的设定 值为0.3m/s。所述的电梯控制器的一次判定到二次判定之间的间隔为10s。
本申请的一种电梯故障救援系统，在电梯遇到供电系统故障或电梯软故障(非电梯安全回路和门锁回路)时，它可在5-10秒钟之内迅速作出反应切换控制，故障平层装置智能判断运行速度到平层位置并打开轿门和厅门，让乘客安全走出电梯大幅度降低困人事故发生。速度的采集由磁栅尺和编码器双路完成，保障电梯安全自动救援速度，有效预防速度失控，更安全稳定。
本申请还提供一种电梯，包括所述的电梯故障救援系统。所述的电梯包括所述的轿厢，所述的轿厢包括轿厢内胆51、设于轿厢内胆51外的外壳52，所述的轿厢内胆51的顶壁与所述的外壳52的顶板之间安装有多个上弹簧减振器53，所述的轿厢内胆51的底壁与所述的外壳52的底板58之间设置有多个下弹簧减振器55，所述的轿厢的侧壁，与外壳52的侧壁之间设置有多个电磁阻尼器54、活塞杆56，所述的活塞杆56的上端部安装至所述的电磁阻尼器54内，并能够沿所述的电磁阻尼器54上下移动，所述的外壳52的底板58的下侧还设置有一冲击板，所述的活塞杆56的下端部穿过所述的外壳52的底板58后固定连接在所述的冲击板上，所述的轿厢还包括一充气系统，所述的充气系统包括一安装在所述的外壳52底板58与轿厢内胆51的底壁之间的充气装置59、设于所述的外壳52的底板58与冲击板之间的气囊60，所述的充气装置59能够对所述的气囊60充气，所述的冲击板的上表面还设置有多个能够嵌入外壳52底板58下表面的安装块57。
所述的充气系统具有充气状态及折叠状态，当所述的充气系统处于折叠状态时，所述的气囊60被折叠在所述的外壳52底板58与冲击板之间，所述的电磁阻尼器54对活塞杆56没有作用力，所述的冲击板的安装块57嵌入所述的外壳52底板58上；当所述的充气系统处于充气状态时，所述的气囊60在充气装置59的充气下处于弹开状态，所述的冲击板在气囊60的作用下相对所述的外壳52的底板58向下弹出，当所述的活塞杆56相对电磁阻尼器54上下运动时，受到电磁阻尼器54的阻尼力。
当编码器所测的轿厢下降速度大于设定下坠速度，磁栅尺传感器所测的轿厢底部与梯井底部的距离小于设定距离时，所述的电梯控制器控制所述的充气装置59对气囊60充气，使充气系统处于充气状态，当所述的充气系统处于充 气状态后，所述的电梯控制器控制所述的电磁阻尼器54对活塞杆56形成阻尼力。
在本申请中，电磁阻尼器54通过电流的通断来控制阻尼力的形成。
在轿厢出现故障，出现极速下坠时，如果轿厢直接跌落至梯井底部，会对轿厢内的人员造成重大伤亡。
本申请的轿厢，安装了充气系统，在轿厢极速下降，将要触碰梯井底部时，气囊60能够弹开，对轿厢起到缓冲作用。由于气囊60设于轿厢外部，气囊60弹开时，不会因为巨大的冲击力对轿厢内的人造成损伤。
在梯井内通常会有尖锐的物体，这种尖锐的物体可能会将充气后的气囊60割破，为防止此现象发生，气囊60被设置在外壳52底部和冲击板之间，冲击板直接触碰梯井底部，对充气后的气囊60起到保护作用，避免梯井内的尖锐物体扎破气囊60，另外，还能够使气囊60所接触的上下表面都是平滑的表面(即，外壳52的底部和冲击板的上表面)，使气囊60受力均匀，将气囊60的缓冲作用发挥到最大。
本申请设置的电磁阻尼器54能够进一步的起到缓冲作用，电磁阻尼器54是在气囊60被打开后导通，因此，在打开气囊60的过程中，电磁阻尼器54不会对活塞杆56产生阻尼力，不会影响气囊60的打开。
而在气囊60打开后，电磁阻尼器54立刻处于导通状态，当冲击板与梯井底部碰撞时，电磁阻尼器54对活塞杆56产生一阻尼力，起到缓冲作用。
另外，由于活塞杆56只能相对电磁阻尼器54上下运动，因此，能够对冲击板起到限位作用。在气囊60打开时，冲击板相对外壳52底部向下运动，由于活塞杆56和电磁阻尼器54的限位，冲击板能够始终处于水平位置，防止了冲击板由于受力不均匀而出现倾斜，使整个轿厢受力平衡。
本申请的电磁阻尼器54、活塞杆56、冲击板及充气系统相互作用，使轿厢在极速下坠触碰地面时，能够最大程度的保护轿厢。
本申请的上弹簧减振器53和下弹簧减振器55，在轿厢正常运行过程中起

Claims (9)

  1. 一种电梯故障救援系统，其特征在于，所述的系统包括，
    电梯控制器，用于判断电梯是否发生故障，若发生故障则将电梯切换至智能救援状态，若未发生故障，则控制电梯正常运行；
    磁栅尺传感器，用于采集电梯轿厢运行速度信号及电梯位置信号，并传送至所述的电梯控制器；
    编码器，用于采集电梯轿厢运行速度信号，
    所述的电梯控制器还用于一次判定所述的磁栅尺传感器及编码器所测的速度，当所测速度大于设定值时，控制电梯进入二次救援状态，当磁栅尺传感器及编码器所测的速度不大于设定值时，控制电梯运行至平层。
  2. 如权利要求1所述的一种电梯故障救援系统，其特征在于，所述的电梯控制器还用于当所述的电梯进入二次救援状态时，二次判定磁栅尺传感器及编码器所测的速度，当磁栅尺传感器及编码器所测的速度大于设定值时，控制电梯停止自动救援，等待人工救援。
  3. 如权利要求2所述的一种电梯故障救援系统，其特征在于，所述的电梯控制器还用于当控制电梯运行至平层后，控制轿厢打开轿门，等待维修。
  4. 如权利要求3所述的一种电梯故障救援系统，其特征在于，所述的设定值为0.3m/s。
  5. 如权利要求2所述的一种电梯故障救援系统，其特征在于，所述的电梯控制器的一次判定到二次判定之间的间隔为10s。
  6. 一种电梯，其特征在于，包括权利要求1～5任意一项所述的电梯故障救援系统。
  7. 如权利要求1所述的一种电梯，其特征在于，所述的电梯包括所述的轿厢，所述的轿厢包括轿厢内胆、设于轿厢内胆外的外壳，所述的轿厢内胆的顶壁与所述的外壳的顶板之间安装有多个上弹簧减振器，所述的轿厢内胆的底壁与所述的外壳的底板之间设置有多个下弹簧减振器，
    所述的轿厢的侧壁，与外壳的侧壁之间设置有多个电磁阻尼器、活塞杆，所述的活塞杆的上端部安装至所述的电磁阻尼器内，并能够沿所述的电磁阻尼器上下移动，所述的外壳的底板的下侧还设置有一冲击板，所述的活塞杆的下端部穿过所述的外壳的底板后固定连接在所述的冲击板上，
    所述的轿厢还包括一充气系统，所述的充气系统包括一安装在所述的外壳底板与轿厢内胆的底壁之间的充气装置、设于所述的外壳的底板与冲击板之间的气囊，所述的充气装置能够对所述的气囊充气，所述的冲击板的上表面还设置有多个能够嵌入外壳底板下表面的安装块。
  8. 如权利要求6所述的一种电梯故障救援系统，其特征在于，所述的充气系统具有充气状态及折叠状态，当所述的充气系统处于折叠状态时，所述的气囊被折叠在所述的外壳底板与冲击板之间，所述的电磁阻尼器对活塞杆没有作用力，所述的冲击板的安装块嵌入所述的外壳底板上；当所述的充气系统处于充气状态时，所述的气囊在充气装置的充气下处于弹开状态，所述的冲击板在气囊的作用下相对所述的外壳的底板向下弹出，当所述的活塞杆相对电磁阻尼器上下运动时，受到电磁阻尼器的阻尼力。
  9. 如权利要求7所述的一种电梯故障救援系统，其特征在于，当编码器所测的轿厢下降速度大于设定下坠速度，磁栅尺传感器所测的轿厢底部与梯井底部的距离小于设定距离时，所述的电梯控制器控制所述的充气装置对气囊充气，使充气系统处于充气状态，当所述的充气系统处于充气状态后，所述的电梯控制器控制所述的电磁阻尼器对活塞杆形成阻尼力。
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