CN107840218B - Emergency self-rescue system after elevator fault - Google Patents
Emergency self-rescue system after elevator fault Download PDFInfo
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- CN107840218B CN107840218B CN201711134162.4A CN201711134162A CN107840218B CN 107840218 B CN107840218 B CN 107840218B CN 201711134162 A CN201711134162 A CN 201711134162A CN 107840218 B CN107840218 B CN 107840218B
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- elevator
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- 238000001514 detection method Methods 0.000 claims abstract description 68
- 238000000034 method Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000009429 distress Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
-
- 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
- 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
- B66B1/3415—Control system configuration and the data transmission or communication within the control system
-
- 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
- B66B5/021—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions the abnormal operating conditions being independent of the system
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention relates to an emergency self-rescue system after elevator faults, which is sequentially connected with an elevator control system disconnection branch, an elevator brake releasing and sliding branch and an elevator door opening branch; the elevator brake releasing and sliding branch comprises: the elevator control device comprises a control transformer, a voice prompt device, a light prompt device, a brake release power supply contactor, a traction machine brake band-type brake, a brake release power supply and an elevator car brake release signal detection switch; the electronic control board is connected with an external power supply through a control transformer, the electronic control board is also connected with a brake release power supply contactor, the brake release power supply contactor is connected with a traction machine brake band-type brake, the traction machine brake band-type brake is connected with a traction machine, and the brake release power supply contactor is also connected with a brake release power supply; the brake release power supply is connected with an external power supply through a control transformer; compared with the prior art, the elevator self-rescue system shortens the rescue time, greatly reduces the rescue cost and has high safety performance.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to an emergency self-rescue system after elevator faults.
Background
With the advancement of technology, elevator applications are increasing, but with the accompanying safety problems. Elevator failure in the prior art comes mainly from three aspects: firstly, a safety loop is in fault, namely, a pit tension pulley switch, a car buffer switch, a hedging buffer switch, an upper limit switch, a lower limit switch, a speed limiter switch, an upper overspeed switch, a lower overspeed switch, a safety gear switch and other switches are in misoperation or poor contact to cause elevator trapping; secondly, controlling the power failure, namely, the bad contact or the broken fuse, the burning of the rectifier bridge and the like of the fuse wire to cause the elevator to be trapped; thirdly, the elevator is trapped due to poor contact of the door lock of the building. Elevator people can present a serious security threat to the trapped people.
Prior-art elevators typically send help-seeking information to the management by trapped personnel when they fail, and then the elevator management assigns professionals to help the trapped personnel. The traditional rescue method has the defects that the distress signal cannot be sent to an elevator management department, the rescue time is long, the management cost is high, the rescue efficiency is low, and the safety risk of rescue workers is high. Therefore, the traditional external assistance rescue method consumes long time, can not rescue trapped people in time, and can cause serious threat to the lives of the trapped people.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an emergency self-rescue system after elevator faults so as to solve the technical problems.
The aim of the invention is achieved by the following technical scheme.
An emergency self-rescue system after elevator failure, comprising: the elevator control system is connected with the opening branch circuit, the elevator contracting brake releasing branch circuit and the elevator door opening branch circuit in sequence; the elevator control system disconnect branch includes: a fault power-off relay and an electronic control board; the electronic control board is provided with an elevator operation detection feedback signal switch and a safety loop detection switch, the elevator operation detection feedback signal switch is also connected with an elevator control system, and the elevator control power supply is provided with a fault power-off output switch; the electronic control board is connected with the fault power-off relay, the fault power-off relay is also connected with the elevator control power supply through a fault power-off output switch, the fault power-off output switch is also connected with an external power supply, and the elevator control power supply is connected with the elevator control system; the elevator brake releasing and sliding branch comprises: the elevator control device comprises a control transformer, a voice prompt device, a light prompt device, a brake release power supply contactor, a traction machine brake band-type brake, a brake release power supply and an elevator car brake release signal detection switch; the electronic control board is connected with an external power supply through a control transformer, the electronic control board is also connected with a brake release power supply contactor, the brake release power supply contactor is connected with a traction machine brake band-type brake, the traction machine brake band-type brake is connected with a traction machine, and the brake release power supply contactor is also connected with a brake release power supply; the brake release power supply is connected with an external power supply through a control transformer; the elevator door opening branch circuit comprises a door opening relay and a flat zone detection switch arranged on the electronic control board, wherein the flat zone detection switch is also connected with a brake release power contactor, and the door opening relay is connected with the electronic control board.
Preferably, the electronic control board is also provided with a switch in-place detection switch and a scram and break detection switch.
Preferably, the emergency stop and motion break detection switch comprises a pit emergency stop and motion break detection switch and a machine room/car top/car inner emergency stop and motion break detection switch which are respectively electrically connected with the electronic control board.
Preferably, the method further comprises: the light prompting device is arranged on the elevator car, and the electronic control board is further connected with the light prompting device.
Preferably, the electronic control board is also electrically connected with a fault processor and a door opening relay.
The working principle of the scheme is as follows:
when the first step elevator fails:
when the normal running elevator suddenly stops running in a non-flat floor area, the contact of the elevator running detection feedback signal switch is closed, signals are input to the electronic control board, and meanwhile, the elevator suddenly stops the elevator door in the non-flat floor area and is not opened, so that the safety loop detection switch is closed, and signals are also input to the electronic control board. At this time, the electronic control board outputs a signal to the fault power-off relay, and the fault power-off relay controls the fault power-off output switch to cut off the elevator control power supply according to the signal, so that the elevator control system is powered off.
And step two, fault rescue starts:
after the electronic control board receives signals input after the elevator operation detection feedback signal switch is closed and signals input after the safety loop detection switch is closed, the voice prompt device and the light prompt device start to work. The trapped person presses down the signal detection switch that opens a brake in the sedan-chair according to the suggestion pronunciation of voice prompt device. The brake release signal detection switch in the car is closed, signals are output to the electronic control board, the electronic control board inputs signals to the brake release power supply contactor, the brake release power supply contactor controls the brake band-type brake of the traction machine to be opened according to the signals, and the traction machine is started after the brake band-type brake of the traction machine is opened to start the sliding operation.
And thirdly, fault rescue operation:
when the elevator sliding operation reaches the position of the leveling zone, the leveling zone detection switch is automatically switched on, signals are input to the electronic control board, the electronic control board cuts off the output signals of the brake-releasing power supply contactor, the brake-releasing power supply contactor is controlled to stop outputting the signals to the brake band-type brake of the traction machine according to the signals, after the brake band-type brake of the traction machine loses electricity, the traction machine stops working, and the elevator stops in the leveling zone.
And step four, rescue is finished:
after the elevator is stopped in the flat floor area, the door opening relay is automatically switched on and outputs a signal to the elevator door opening machine, the elevator door opening machine is started, and the elevator door is slowly opened. After the elevator door is opened, the door opening in-place detection switch is closed, a signal is output to the elevator door operator, the elevator door operator stops working, the elevator door is completely opened, and trapped people walk out of the elevator.
If the pit scram and break detection switch has a signal input to the electronic control board, or the computer room/car roof/car inner scram and break detection switch has a signal input to the electronic control board, the electronic control board is forbidden to output everything.
Compared with the prior art, the invention has the following advantages:
compared with the prior art, the elevator self-rescue system shortens the rescue time, greatly reduces the rescue cost and has high safety performance.
Drawings
The invention will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the invention, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
Fig. 1 is a schematic diagram of an elevator self-rescue system in an embodiment of the invention.
Fig. 2 is a circuit diagram of an elevator self-rescue system in combination with an elevator control system in an embodiment of the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, a post-elevator failure emergency self-rescue system comprising: the elevator control system is connected with the opening branch circuit, the elevator contracting brake releasing branch circuit and the elevator door opening branch circuit in sequence; the elevator control system disconnect branch includes: a fault de-energized relay 19 and an electronic control board 20; the electronic control board 20 is provided with an elevator operation detection feedback signal switch 9 and a safety loop detection switch 10, the elevator operation detection feedback signal switch 9 is also connected with the elevator control system 3, and the elevator control power supply 2 is provided with a fault outage output switch 1; the electronic control board 20 is connected with the fault power-off relay 19, the fault power-off relay 19 is also connected with the elevator control power supply 2 through the fault power-off output switch 1, the fault power-off output switch 1 is also connected with the external power supply 13, and the elevator control power supply 2 is connected with the elevator control system 3; the elevator brake releasing and sliding branch comprises: the control transformer 14, the voice prompt device 17, the brake release power supply contactor 6, the traction machine brake band-type brake 5, the brake release power supply 15 and the car brake release signal detection switch 8 which is displayed in the elevator car; the electronic control board 20 is connected with an external power supply through a control transformer 14, the electronic control board 20 is also connected with a brake release power supply contactor 6, the brake release power supply contactor 6 is connected with a traction machine brake band-type brake 5, the traction machine brake band-type brake 5 is connected with a traction machine 4, and the brake release power supply contactor 6 is also connected with a brake release power supply 15; the brake release power supply 15 is connected with the external power supply 13 through the control transformer 14; the elevator door opening branch circuit comprises a door opening relay 18 and a flat zone detection switch arranged on the electronic control board 20, wherein the flat zone detection switch is also connected with the brake release power contactor 6, and the door opening relay 18 is connected with the electronic control board 20.
In this embodiment, the electronic control board 20 is further provided with a switch in-place detection switch 11 and a scram break detection switch 12. Still further, the scram/break detection switch 12 includes a pit scram/break detection switch and a machine room/car roof/car inner scram/break detection switch electrically connected to the electronic control board 20, respectively.
In this embodiment, further comprising: the electronic control board 20 is also connected with the light prompting device 16.
In this embodiment, the electronic control board 20 is further electrically connected with a fault processor and a door opening relay.
After the car returns to the leveling zone, the leveling zone detection switch inputs a signal to the electronic control board 20, the electronic control board 20 outputs a control signal to the door opening relay 18, the car door is opened, and trapped people can safely walk out of the car. And then, carrying out fault detection and maintenance on the elevator by a professional technician.
The car inner brake release signal detection switch 8 is used for inputting detected car inner brake release signals to the electronic control board 20, the elevator operation detection switch 9 is used for detecting whether the elevator is in safety information of a flat floor area, the safety loop detection switch 10 is used for detecting landing door/car door closing information and then inputting the electronic control board 20, a pit scram moving switch in the scram moving switch 12 is used for detecting moving break conditions of a pit, and the machine room/car roof/car inner scram moving break detection switch is used for detecting moving break conditions in the machine room/car roof/car.
The fault processor, the door opening relay 18, the light prompting device 16 and the voice prompting device 17 are all devices for controlling output of the electronic control board 20.
The elevator self-rescue system of the scheme is independent and can be directly connected into a self-rescue system of a traditional elevator system. In the normal operation process of the elevator, the elevator self-rescue system of the scheme is in a closed state, and when the elevator breaks down and the external power supply breaks off, the elevator stops in a non-flat zone, and then the elevator self-rescue system is started. The specific working procedure is as follows:
when the first step elevator fails:
when the normal running elevator suddenly stops running in a non-flat floor area, the contact of the elevator running detection feedback signal switch is closed, signals are input to the electronic control board, and meanwhile, the elevator suddenly stops the elevator door in the non-flat floor area and is not opened, so that the safety loop detection switch is closed, and signals are also input to the electronic control board. At this time, the electronic control board outputs a signal to the fault power-off relay, and the fault power-off relay controls the fault power-off output switch to cut off the elevator control power supply according to the signal, so that the elevator control system is powered off.
And step two, fault rescue starts:
after the electronic control board receives signals input after the elevator operation detection feedback signal switch is closed and signals input after the safety loop detection switch is closed, the voice prompt device and the light prompt device start to work. The trapped person presses down the signal detection switch that opens a brake in the sedan-chair according to the suggestion pronunciation of voice prompt device. The brake release signal detection switch in the car is closed, signals are output to the electronic control board, the electronic control board inputs signals to the brake release power supply contactor, the brake release power supply contactor controls the brake band-type brake of the traction machine to be opened according to the signals, and the traction machine is started after the brake band-type brake of the traction machine is opened to start the sliding operation.
And thirdly, fault rescue operation:
when the elevator sliding operation reaches the position of the leveling zone, the leveling zone detection switch is automatically switched on, signals are input to the electronic control board, the electronic control board cuts off the output signals of the brake-releasing power supply contactor, the brake-releasing power supply contactor is controlled to stop outputting the signals to the brake band-type brake of the traction machine according to the signals, after the brake band-type brake of the traction machine loses electricity, the traction machine stops working, and the elevator stops in the leveling zone.
And step four, rescue is finished:
after the elevator is stopped in the flat floor area, the door opening relay is automatically switched on and outputs a signal to the elevator door opening machine, the elevator door opening machine is started, and the elevator door is slowly opened. After the elevator door is opened, the door opening in-place detection switch is closed, a signal is output to the elevator door operator, the elevator door operator stops working, the elevator door is completely opened, and trapped people walk out of the elevator.
If the pit scram and break detection switch has a signal input to the electronic control board, or the computer room/car roof/car inner scram and break detection switch has a signal input to the electronic control board, the electronic control board is forbidden to output everything.
Compared with the prior art, the invention has the following advantages:
compared with the prior art, the elevator self-rescue system shortens the rescue time, greatly reduces the rescue cost and has high safety performance.
The foregoing describes in detail an emergency self-rescue system after elevator failure provided by the embodiment of the present invention, and specific examples are applied to illustrate the principle and implementation of the present invention, and the description of the foregoing examples is only used to help understand the core idea of the present invention; also, as will be apparent to those skilled in the art in light of the present teachings, the present disclosure should not be limited to the specific embodiments and applications described herein.
Claims (5)
1. The emergency self-rescue system after the elevator faults is characterized by comprising an elevator control system disconnection branch, an elevator contracting brake sliding branch and an elevator door opening branch which are connected in sequence;
the elevator control system disconnection branch comprises a fault outage relay and an electronic control board; the electronic control board is provided with an elevator operation detection feedback signal switch and a safety loop detection switch, the elevator operation detection feedback signal switch is also connected with an elevator control system, and the elevator control power supply is provided with a fault power-off output switch; the electronic control board is connected with the fault power-off relay, the fault power-off relay is also connected with the elevator control power supply through a fault power-off output switch, the fault power-off output switch is also connected with an external power supply, and the elevator control power supply is connected with the elevator control system;
the elevator brake releasing and sliding branch comprises a control transformer, a voice prompt device, a light prompt device, a brake releasing power supply contactor, a traction machine brake band brake, a brake releasing power supply and an in-car brake releasing signal detection switch which is displayed in an elevator car; the electronic control board is connected with an external power supply through a control transformer, the electronic control board is also connected with a brake release power supply contactor, the brake release power supply contactor is connected with a traction machine brake band-type brake, the traction machine brake band-type brake is connected with a traction machine, and the brake release power supply contactor is also connected with a brake release power supply; the brake release power supply is connected with an external power supply through a control transformer;
the elevator door opening branch comprises a door opening relay and a flat zone detection switch arranged on the electronic control board, the flat zone detection switch is also connected with a brake release power contactor, and the door opening relay is connected with the electronic control board;
the working flow of the emergency self-rescue system after elevator faults comprises the following steps:
when the first step elevator fails:
when the normal running elevator suddenly stops running in a non-flat zone, a contact of an elevator running detection feedback signal switch is closed, a signal is input to an electronic control board, meanwhile, the elevator suddenly stops the elevator door in the non-flat zone and is not opened, so that a safety loop detection switch is closed, a signal is also input to the electronic control board, at the moment, the electronic control board outputs a signal to a fault outage relay, and the fault outage relay controls a fault outage output switch to cut off an elevator control power supply according to the signal, so that an elevator control system is powered off;
and step two, fault rescue starts:
after the electronic control board receives signals input after the elevator operation detection feedback signal switch is closed and signals input after the safety loop detection switch is closed, the voice prompt device and the light prompt device start to work, trapped personnel press the brake release signal detection switch in the car according to prompt voice of the voice prompt device, the brake release signal detection switch in the car is closed, signals are output to the electronic control board, the electronic control board inputs signals to a brake release power contactor, the brake release power contactor controls the brake band-type brake of the traction machine to be opened according to the signals, and the traction machine is started after the brake band-type brake of the traction machine is opened to start the sliding operation;
and thirdly, fault rescue operation:
when the elevator sliding operation reaches the position of the leveling zone, the leveling zone detection switch is automatically switched on, signals are input to the electronic control board, the electronic control board cuts off the output signals of the brake release power supply contactor, the brake release power supply contactor is controlled to stop outputting the signals to the brake band-type brake of the traction machine according to the signals, after the brake band-type brake of the traction machine is powered off, the traction machine stops working, and the elevator stops in the leveling zone;
and step four, rescue is finished:
after the elevator is stopped in the flat floor area, the door opening relay is automatically connected and outputs a signal to the elevator door opening machine, the elevator door opening machine is started, the elevator door is slowly opened, after the elevator door is opened, the door opening in-place detection switch is closed and outputs the signal to the elevator door opening machine, the elevator door opening machine stops working, the elevator door is completely opened, and trapped people walk out of the elevator.
2. The post-elevator-fault emergency self-rescue system of claim 1, wherein the electronic control board is further provided with a switch in-place detection switch and a scram-and-break detection switch.
3. The post-elevator-failure emergency self-rescue system of claim 2, wherein the scram break detection switch comprises a pit scram break detection switch and a machine room/ceiling/in-car scram break detection switch electrically connected to the electronic control board, respectively.
4. The emergency self-rescue system after elevator failure according to claim 1, further comprising a light prompting device and a voice prompting device which are arranged on an elevator car, wherein the electronic control board is further connected with the light prompting device and the voice prompting device.
5. The post-elevator-fault emergency self-rescue system of claim 1, wherein the electronic control board is further electrically connected with a fault processor and a door opening relay.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711134162.4A CN107840218B (en) | 2017-11-15 | 2017-11-15 | Emergency self-rescue system after elevator fault |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711134162.4A CN107840218B (en) | 2017-11-15 | 2017-11-15 | Emergency self-rescue system after elevator fault |
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| CN107840218A CN107840218A (en) | 2018-03-27 |
| CN107840218B true CN107840218B (en) | 2024-04-12 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108394780A (en) * | 2018-04-17 | 2018-08-14 | 快意电梯股份有限公司 | Machine-roomless lift Survivable Control System |
| CN109132762B (en) * | 2018-10-12 | 2024-01-09 | 广州广日电梯工业有限公司 | Intelligent emergency rescue device and rescue method for elevator without machine room |
| CN110589653A (en) * | 2019-09-20 | 2019-12-20 | 广东亚太西奥电梯有限公司 | Intelligent escaping elevator, independent escaping device thereof and intelligent elevator escaping method |
| CN111204632B (en) * | 2020-02-27 | 2022-02-22 | 苏州易米克电子有限公司 | Control method for reusing communication and triggering functions of brake release device by using elevator communication line |
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| JP2007276986A (en) * | 2006-04-11 | 2007-10-25 | Mitsubishi Electric Building Techno Service Co Ltd | Method for rescuing passenger locked up in elevator car |
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