CN115535769A - Emergency rescue method for multi-car elevator system - Google Patents
Emergency rescue method for multi-car elevator system Download PDFInfo
- Publication number
- CN115535769A CN115535769A CN202011500887.2A CN202011500887A CN115535769A CN 115535769 A CN115535769 A CN 115535769A CN 202011500887 A CN202011500887 A CN 202011500887A CN 115535769 A CN115535769 A CN 115535769A
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- car
- operation terminal
- retarder
- emergency
- rescue method
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000009471 action Effects 0.000 claims description 32
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000001133 acceleration Effects 0.000 claims description 3
- 230000002596 correlated effect Effects 0.000 claims 1
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
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- 230000001939 inductive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
-
- 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
- B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses an emergency rescue method for a multi-car elevator system, wherein the elevator system comprises an emergency control unit, an operation terminal and a retarder, when a car does not normally run, the emergency control unit sends alarm information, workers outside the car or passengers inside the car start the operation terminal, the operation terminal operates the retarder to start, an acting force opposite to the running direction of the car is generated, and the car descends to a flat-layer position to stop. According to the invention, when the elevator system fails and can not be controlled independently and needs human intervention, passengers in the lift car can realize autonomous emergency rescue without external rescue force, the rescue method is simple, convenient and rapid to operate, and slow flat-layer rescue and autonomous escape can be realized.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to an emergency rescue method for a multi-car elevator system.
Background
At present, elevator cars are widely operated in a steel wire rope traction driving mode, only one car can be arranged in one hoistway, and an elevator in a single-car operation mode can meet the use requirements in low-rise buildings and occasions with low pedestrian volume, but the defects of long waiting time and low conveying efficiency in high-rise buildings or super high-rise buildings with high population density are obviously enlarged. If the elevator shaft and the corresponding car occupy a large building space, the cost is obviously improved, and the problem of low elevator conveying efficiency still exists.
With the continuous development of the engineering technology level, multi-car operation modes such as a double-deck car elevator, a double-car elevator, a ring type or branched ring type elevator and the like gradually appear, but the known multi-car elevator operation modes have the cars positioned on the track in the same shaft, the elevator cars between the shafts cannot perform track switching operation, the cars cannot perform overrunning operation, and under the condition of rapid increase of the transportation volume, the current multi-car operation mode is adopted, so that the space utilization rate of a building is greatly reduced, and the problem of low elevator transportation efficiency is not fundamentally solved.
In view of the above problems, the present applicant has proposed a multi-car elevator system in which a plurality of cars can be operated in the same hoistway. In a multi-car elevator system, in order to improve the overall operation efficiency of the elevator, a requirement of rail-cutting operation is provided for a rail system. The multi-car parallel elevator system is a cable-free self-driving elevator, and non-flat-layer emergency rescue work is more difficult to implement compared with the traditional elevator, particularly under the condition of power loss or control system failure.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the technical problems in the prior art, the invention provides the autonomous rescue method for the multi-car parallel elevator, when the elevator system fails and can not be controlled autonomously and needs human intervention, passengers in the car can realize autonomous emergency rescue without external rescue force, the rescue method is simple, convenient and rapid to operate, and slow-speed flat-layer rescue and autonomous escape can be realized.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a emergency rescue method for many cars elevator system, elevator system includes emergency control unit, operation terminal and retarder, when the car is unusual, emergency control unit sends alarm information, and the passenger starts operation terminal in staff or the car outside the car, and operation terminal operation retarder starts, produces the effort opposite with car traffic direction, the car descends to the flat bed position and stops.
As a further improvement of the above technical solution:
the abnormal operation of the elevator car means that the elevator system is in a state that the elevator system fails to be automatically controlled or operated, and the elevator system can have larger potential safety hazard and needs manual intervention or authorized operation when continuously operating.
The non-definite value of effort, effort size and car acceleration positive correlation, the retarber starts the back, the car slows down to the flat bed position and stops.
When an operator outside the car or a passenger inside the car starts an operation terminal, the car is in a running state or a stopping state by a brake.
Preferably, when the car is in the braking state, when staff outside the car or passengers in the car start the operation terminal, the operation terminal operates the retarder to start and the linkage brake is released to the car to move.
Preferably, the lift car realizes the leveling function through a leveling device, and the leveling device is electrically connected with the emergency control unit.
When the elevator car reaches the leveling layer, the emergency control unit displays information that the elevator car reaches the leveling layer on an interface in the elevator car.
Preferably, the leveling device locks the car when the car reaches a leveling level.
Preferably, after the elevator car reaches the flat floor, the emergency control unit controls the brake to brake the elevator car.
More preferably, after the elevator car reaches the leveling, the leveling device detects the information that the elevator car reaches the leveling, and sends the information to the emergency control unit, and then the emergency control unit controls the brake to stop the elevator car.
The operation terminal comprises an internal operation terminal and an external operation terminal, the internal operation terminal is located in the car, the external operation terminal is located outside the car, and the internal operation terminal and the external operation terminal are connected with the retarder in parallel and independently.
The external operation terminal is electrically connected with the retarder.
The internal operation terminal comprises a first operation terminal in the car and a second operation terminal in the car, the first operation terminal in the car is electrically connected with the speed reducer, and the second operation terminal in the car is mechanically connected with the speed reducer.
And when the staff of the elevator control center receives the alarm information and starts the external operation terminal, the external operation terminal starts the retarder.
When a passenger in the car receives the alarm information and starts a second operation terminal in the car or a first operation terminal in the car to act, the retarder acts.
After the emergency control unit receives the action information of the external operation terminal, the display interface in the car displays the action information of the external operation terminal, and the passenger is reminded that the action is not needed.
When the emergency control unit sends alarm information and the external operation terminal does not act for a period of time, the display interface in the car can display the alarm information to remind passengers to operate a second operation terminal in the car or a first operation terminal in the car.
After the emergency control unit receives the action information of the second operation terminal in the car or the first operation terminal in the car, the display interface in the car displays that the action is started.
The action priority levels of the external operation terminal, the first operation terminal in the car and the second operation terminal in the car are sequentially from high to low: the second operation terminal in the car, the first operation terminal in the car and the external operation terminal.
When the second operation terminal in the cage is first operated, the operation of the first operation terminal in the cage and the operation of the external operation terminal cannot be inserted into the control circuit.
When the first operation terminal in the cage is firstly operated, the operation of the external operation terminal can not be inserted into the control circuit, and the operation of the second operation terminal in the cage can be inserted into the control circuit to replace the operation of the first operation terminal in the cage.
When the first operation terminal in the cage firstly acts and then the second operation terminal in the cage acts, the second operation terminal in the cage is inserted into the control circuit, and when the second operation terminal in the cage acts and is inserted into the control circuit to withdraw the action of the second operation terminal in the cage, the first operation terminal in the cage restores to act.
When the external operation terminal acts first, the second operation terminal in the car and the first operation terminal in the car can be inserted into the control circuit.
When the external operation terminal acts firstly and then the second operation terminal in the car or the first operation terminal in the car acts, the action of the second operation terminal in the car or the first operation terminal in the car is inserted into the control circuit, and when the action of the second operation terminal in the car or the first operation terminal in the car is inserted into the control circuit, the action of the second operation terminal in the car or the first operation terminal in the car inserted into the control circuit is cancelled, and then the action of the external operation terminal is recovered.
Compared with the prior art, the invention has the following advantages:
the self-rescue method for the multi-car parallel elevator is characterized in that when an elevator system fails and cannot be controlled independently and needs manual intervention, passengers in the car can realize self-emergency rescue without external rescue force, the emergency rescue can be realized through a plurality of terminals, the operation actions of the terminals are mutually supplemented and do not interfere with each other, the rescue method is reliable, simple, convenient and rapid to operate, and can realize slow-speed flat-layer rescue and self-escape.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
An emergency rescue method for a multi-car elevator system, which comprises an emergency control unit, an operating terminal, a retarder and a leveling device. When the car is not in normal operation, emergency control unit sends alarm information, and passenger starts operation terminal in staff or the car outside the car, and operation terminal operation retarber starts, produces the effort with car traffic opposite direction, the car descends to the flat bed position and stops.
The non-definite value of effort, effort size and car acceleration positive correlation, promptly, when car functioning speed was bigger and bigger, the effort of applyieing was big more, and car functioning speed is more and more small, and the effort of applyieing is less, applyies effort more than or equal to car dead weight and load, and the effort makes car speed reduce to keep low-speed even speed flat bed. After the retarder starts, the car slowly descends to the flat bed position and stops, the slow descending of car means that the speed that the car descends is less than the speed when the car normally operates.
The abnormal operation of the elevator car is also called that the elevator is in an emergency rescue state, and the emergency rescue state refers to a state that the elevator system fails to be controlled autonomously and needs human intervention, and includes but is not limited to: the emergency brake is stopped at a non-flat layer, power failure, failure of a control system, failure of a safety loop, failure of safety communication, failure of slipping and the like. The failures include hardware failures and software failures.
When the car descends to the leveling position, the car can be locked through the leveling device or stopped through a brake. Specifically, the leveling device comprises a leveling locking structure and a leveling sensor, wherein the leveling locking structure is a mechanical structure and can lock the car at a leveling position. The flat bed inductor is used for inducing whether the car reaches a flat bed, when the car is stopped at the flat bed position through the brake, the information that the car reaches the flat bed position is firstly induced through the flat bed inductor, then the flat bed inductor is used for sending the information to the emergency control unit, and the emergency control unit controls the brake to stop the car.
The operation terminal comprises an external operation terminal and an internal operation terminal positioned in the car, the internal operation terminal comprises a first operation terminal in the car and a second operation terminal in the car, the external operation terminal is positioned in an elevator control center outside the car, and the first operation terminal in the car and the second operation terminal in the car are positioned in the car.
The external operation terminal, the first operation terminal in the car and the second operation terminal in the car are respectively connected with the retarder in parallel. Specifically, an external operation terminal and a first operation terminal in the car are respectively electrically connected with the emergency control unit, the retarder is electrically connected with the emergency control unit, and after the emergency control unit receives an action command of the external operation terminal or the first operation terminal in the car, the emergency control unit controls the retarder to act. Namely, the external operation terminal and the first operation terminal in the car are respectively connected with the retarder through the emergency control unit.
And a second operation terminal in the car is mechanically connected with the retarder, and when the second operation terminal in the car is started to move, the second operation terminal in the car directly drives the retarder to move. Second operation terminal also is connected with emergency control unit electricity in the car, makes emergency control unit can detect whether second operation terminal moves in the car, can realize among the prior art through position sensor etc. here no longer gives details. In other words, the external operator terminal and the first operator terminal in the car may be considered as a semi-automatic operation mode, and the second operator terminal in the car may be considered as a manual operation mode.
The action priority levels of the external operation terminal, the first operation terminal in the car and the second operation terminal in the car are sequentially from high to low: the second operation terminal in the car, the first operation terminal in the car and the external operation terminal. The explanation is as follows:
when the second operation terminal in the cage firstly acts, the actions of the first operation terminal in the cage and the external operation terminal cannot be inserted into the control circuit;
when the first operation terminal in the cage firstly acts, the action of the external operation terminal cannot be inserted into the control circuit, and the action of the second operation terminal in the cage can be inserted into the control circuit to replace the action of the first operation terminal in the cage; when the first operation terminal in the cage firstly acts and then the second operation terminal in the cage acts, the second operation terminal in the cage is inserted into the control circuit, and when the second operation terminal in the cage acts and is inserted into the control circuit to withdraw the action of the second operation terminal in the cage, the first operation terminal in the cage restores to act;
when the external operation terminal acts firstly, the second operation terminal in the cage and the first operation terminal in the cage can be inserted into the control circuit; when the external operation terminal acts firstly and then the second operation terminal in the car or the first operation terminal in the car acts, the action of the second operation terminal in the car or the first operation terminal in the car is inserted into the control circuit, and when the action of the second operation terminal in the car or the first operation terminal in the car is inserted into the control circuit, the action of the second operation terminal in the car or the first operation terminal in the car inserted into the control circuit is cancelled, and then the action of the external operation terminal is recovered.
The starting suggestions of all the operation terminals for emergency rescue are ordered as follows: the elevator system comprises an external operation terminal, a first operation terminal in the car and a second operation terminal in the car. Correspondingly, the display interface in the car can guide passengers not to act after the external operation terminal acts, and when the external operation terminal does not act, the display interface guides the passengers to act the first operation terminal in the car preferentially.
After the emergency control unit receives the action information of the external operation terminal, the display interface in the car displays the action information of the external operation terminal, and the passenger is reminded that the action is not needed.
When the emergency control unit sends alarm information and the external operation terminal does not act for a period of time, the display interface in the car can display the alarm information to remind passengers to operate the second operation terminal in the car or the first operation terminal in the car.
And when the emergency control unit receives the action information of the second operation terminal in the car or the first operation terminal in the car, the display interface in the car displays that the action is started.
When the emergency control unit judges that the elevator is in an emergency rescue state, the sound-light alarm device gives an alarm, a worker of an elevator control center starts an external operation terminal after receiving alarm information, and the emergency control unit controls the retarder to act after receiving action information of the external operation terminal. If the car is in a stop state when the retarder acts, the retarder is started and simultaneously linked with a brake of the elevator to enable the brake to be released until the car can move; if the car is in a running state when the retarder acts, the retarder can not be linked with the brake of the elevator when being started. When the retarder acts, acting force opposite to the running direction of the car is generated between the retarder and the guide rail, and the car runs at a slow speed. The emergency control unit receives the action information of the external operation terminal, the display interface in the car can display the action information of the external operation terminal, a passenger is reminded of not needing to act, meanwhile, the emergency control unit sends an instruction to control the leveling device to act, the car is locked on a leveling floor when the car slowly runs to the leveling floor, or the leveling device sends the information that the car reaches the leveling floor to the emergency control unit, and the emergency control unit stops the car on the leveling floor, so that rescue and escape are facilitated. When the elevator car reaches the leveling level, the emergency control unit displays information that the elevator car reaches the leveling level on an elevator car internal display interface.
When the emergency control unit judges that the elevator is in an emergency rescue state, the emergency control unit gives out sound and light alarm, but the external operation terminal does not act within a period of time, the display interface in the car can display warning information to remind passengers to operate a second operation terminal in the car or a first operation terminal in the car, and the first operation terminal in the car is preferentially operated. When the second operation terminal in the car or the first operation terminal in the car acts, the retarder acts. Similarly, if the car is in a stop state when the retarder acts, the retarder is started and simultaneously linked with the brake of the elevator to enable the brake to be released until the car can move; if the car is in the running state when the retarder acts, the retarder can not be linked with the brake of the elevator when being started.
The retarder has a detailed structure disclosed in patent No. 2020110131620 of the present applicant, and other structures such as a guide device, a suspension device, and an emergency rescue device for implementing the emergency rescue method are also disclosed in other patents of the present applicant, and a description thereof will not be repeated.
The above embodiments are merely preferred embodiments of the present invention, which is not intended to limit the present invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (10)
1. An emergency rescue method for a multi-car elevator system is characterized in that: the elevator system comprises an emergency control unit, an operation terminal and a retarder, when the car operates abnormally, the emergency control unit sends alarm information, the passenger starts the operation terminal in the outer worker of the car or the car, the operation terminal operates the retarder to start, acting force opposite to the running direction of the car is generated, and the car descends to the leveling position to stop.
2. An emergency rescue method according to claim 1, wherein the abnormal operation of the car means that the elevator system fails and is in a state of being incapable of autonomous control or operation, and the continuous operation has a large potential safety hazard and needs human intervention or authorized operation.
3. An emergency rescue method according to claim 1, wherein the acting force is not constant, the acting force is positively correlated with the car acceleration, and after the retarder is started, the car slowly descends to a flat position and stops.
4. An emergency rescue method according to claim 1, wherein the car is in a running state or a stopped state by a brake when an operator outside the car or a passenger inside the car starts an operation terminal.
5. An emergency rescue method according to claim 4, wherein when the car is in a braking state and an operator outside the car or a passenger inside the car activates the operation terminal, the operation terminal operates the retarder to activate and simultaneously releases the interlocking brake until the car can move.
6. The emergency rescue method according to claim 5, wherein the car performs a leveling function through a leveling device, and the leveling device is electrically connected with the emergency control unit.
7. An emergency rescue method according to claim 6, characterized in that when the car reaches the leveling, the emergency control unit displays information that the car reaches the leveling on the display interface inside the car.
8. An emergency rescue method according to claim 1, 5 or 6, wherein the operation terminals comprise an internal operation terminal located inside the car and an external operation terminal located outside the car, and the internal operation terminal and the external operation terminal are independently connected with the retarder in parallel.
9. An emergency rescue method according to claim 11, wherein the internal operation terminal comprises a first operation terminal in the car and a second operation terminal in the car, the first operation terminal in the car is electrically connected with the retarder, and the second operation terminal in the car is mechanically connected with the retarder.
10. An emergency rescue method according to claim 13, wherein the action priority levels of the external operation terminal, the first operation terminal in the car and the second operation terminal in the car are as follows from high to low: the system comprises an in-car second operation terminal, an in-car first operation terminal and an external operation terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011500887.2A CN115535769B (en) | 2020-12-18 | 2020-12-18 | Emergency rescue method for multi-car elevator system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011500887.2A CN115535769B (en) | 2020-12-18 | 2020-12-18 | Emergency rescue method for multi-car elevator system |
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| CN115535769A true CN115535769A (en) | 2022-12-30 |
| CN115535769B CN115535769B (en) | 2024-08-09 |
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| CN108821051A (en) * | 2018-06-25 | 2018-11-16 | 中联重科股份有限公司 | Elevator passenger remote rescue method and system |
| CN114249205A (en) * | 2020-09-24 | 2022-03-29 | 湖南大举信息科技有限公司 | Retarder for multi-car parallel elevator |
-
2020
- 2020-12-18 CN CN202011500887.2A patent/CN115535769B/en active Active
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|---|---|---|---|---|
| JP2001220075A (en) * | 2000-02-07 | 2001-08-14 | Hitachi Building Systems Co Ltd | Remote rescue device for enclosure in elevator |
| JP2004224492A (en) * | 2003-01-22 | 2004-08-12 | Fujitec Co Ltd | Elevator device |
| WO2005040025A1 (en) * | 2003-10-07 | 2005-05-06 | Otis Elevator Company | Elevator rescue drive mechanism |
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| CN115535769B (en) | 2024-08-09 |
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