CN115535770A - Emergency rescue device for multi-car elevator system - Google Patents
Emergency rescue device for multi-car elevator system Download PDFInfo
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- CN115535770A CN115535770A CN202011500971.4A CN202011500971A CN115535770A CN 115535770 A CN115535770 A CN 115535770A CN 202011500971 A CN202011500971 A CN 202011500971A CN 115535770 A CN115535770 A CN 115535770A
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- 239000000725 suspension Substances 0.000 claims abstract description 18
- 230000009471 action Effects 0.000 claims description 22
- 230000006698 induction Effects 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000000007 visual effect Effects 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
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
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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
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- 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
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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
- B66B5/027—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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses an emergency rescue device for a multi-car elevator system, which comprises a guide rail, a car, a guide device, a brake and a suspension device, wherein the guide device and the car are connected to the suspension device, the guide device runs along the guide rail and guides the car to run along the guide rail through the suspension device, the car has a leveling function, the emergency rescue device comprises an emergency control unit, and a retarder and an operation terminal which are respectively and electrically connected with the emergency control unit, when the car does not run normally, the operation terminal operates the retarder to start, an acting force opposite to the running direction of the car is generated, the acting force is not constant, and the car descends to a leveling position and stops; the operator terminal includes an internal operator terminal located within the car. According to the invention, when the elevator system fails and can not be controlled independently and needs human intervention, passengers in the car can realize autonomous emergency rescue without external rescue force, the rescue device has a simple and reliable structure, and the car can be decelerated.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to an emergency rescue device 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 for rail-switchable 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 an autonomous rescue device for a multi-car parallel elevator, when an elevator system fails and is in a state of incapability of autonomous control and need of human intervention, passengers in a car can realize autonomous emergency rescue without external rescue force, the rescue device is simple and reliable in structure, and meanwhile, the car can slow down, the elevator is prevented from overspeed, overspeed actions of safety tongs are reduced, accidental movement of the car is prevented, and shearing accidents are avoided.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the emergency rescue device comprises an emergency control unit, a retarder and an operation terminal, wherein the retarder and the operation terminal are respectively electrically connected with the emergency control unit, when the car does not normally run, the operation terminal operates the retarder to start, an acting force opposite to the running direction of the car is generated, the acting force is not constant, and the car descends to a flat layer position to stop; the operator terminal includes an internal operator terminal located within the car.
As a further improvement of the technical scheme:
the retarder is installed on car or suspension device, and the retarder includes force application unit and action unit, and force application unit connects and drives the action unit action, and action unit contact guide rail and with produce the effort opposite with car traffic direction between the guide rail.
The action unit is a wedge-shaped movable wedge block, and the force application unit is connected with and drives the movable wedge block to move along the wedge-shaped surface to a surface opposite to the wedge-shaped surface to contact and press the guide rail.
The force application unit is an electric push rod, an air cylinder or a hydraulic cylinder, and the force application unit is electrically connected with the emergency control unit.
The force application unit is a transmission part and is connected with the power part, and the power part drives the action unit through the force application unit.
The force application unit is a screw nut or a connecting rod.
The internal operation terminal comprises a first operation terminal in the lift car and a second operation terminal in the lift car, wherein the first operation terminal in the lift car and the second operation terminal in the lift car are parallelly and independently connected with the force application unit, the first operation terminal in the lift car is electrically connected with the emergency control unit, when the emergency control unit receives an action command of the first operation terminal in the lift car, the emergency control unit controls the force application unit to act, and the second operation terminal in the lift car is mechanically connected with the force application unit.
The first operation terminal in the lift car is an operation button or a switch arranged in the lift car, and the second operation terminal in the lift car is a labor-saving mechanical device arranged in the lift car.
The operation terminal also comprises an external operation terminal positioned outside the car, and the external operation terminal, the first operation terminal in the car and the second operation terminal in the car are respectively connected with the force application unit in parallel.
The external operation terminal is located at an elevator control center outside the car.
The external operation terminal is electrically connected with the emergency control unit, and the emergency control unit controls the force application unit to act after receiving an action instruction of the external operation terminal.
The external operation terminal is an operation button or a switch arranged in a control center outside the car.
The external operation terminal, the first operation terminal in the car and the second operation terminal in the car are respectively linked with the brake in parallel: when the external operating terminal, the first operating terminal in the car or the second operating terminal in the car is started, the brake is released until the car can move on the guide rail.
The emergency rescue device further comprises a leveling device for achieving a leveling function.
The leveling device comprises a leveling mechanical automatic lock, the leveling mechanical automatic lock is installed on the car or the suspension device, the leveling mechanical automatic lock is electrically connected with the emergency control unit, and when the car runs to a leveling position, the leveling mechanical automatic lock locks the car.
The automatic flat mechanical lock comprises a pin structure and a driving part, a plurality of pin holes are formed in the guide rail at intervals, the pin structure can be inserted into the pin holes, when the pin structure is inserted into the pin holes, the car is locked on a certain flat layer, the emergency control unit is electrically connected with the driving part in a controllable mode, and the driving part drives the pin structure to move.
The driving component exerts acting force on the pin structure, the pin structure contacts the guide rail under the acting force of the driving component when the lift car runs, and the pin structure is inserted into the pin hole in the guide rail under the acting force of the driving component when the lift car runs to the pin hole, so that the lift car is locked.
The driving part is a hydraulic device, an electric device or an electromagnet.
The leveling device further comprises a leveling sensor, the leveling sensor comprises a sensing A end and a plurality of sensing B ends, the sensing A end is mounted on the suspension device or the car, the plurality of sensing B ends are respectively mounted at an elevator exit of each floor of a building, and when the car is located on a certain leveling layer, the sensing A end senses the sensing B end of the floor.
The emergency control unit comprises an alarm device, a display interface in the car and a processor for receiving information, processing information and sending instructions.
An in-car display interface for displaying the current state of the elevator is installed in the car.
The current state of the elevator comprises the current running speed of the elevator car, an operation guide and whether the elevator car is positioned on a flat floor.
The alarm device is a sound-light alarm, and the elevator control center outside the car and the car are both provided with the sound-light alarms.
Compared with the prior art, the invention has the following advantages:
the utility model provides an independently rescue device for parallel elevator of many cars, when elevator system breaks down and is in can not independently control, need the artificial intervention condition, passenger can realize independently emergency rescue in the car, need not outside rescue strength, and rescue device simple structure is reliable, can realize the car and slow down the speed simultaneously, avoids the elevator to overspeed, reduces the overspeed action of safety tongs to and prevent the unexpected removal of car, avoid the emergence of shearing accident.
Drawings
Fig. 1 is a schematic structural diagram of an emergency rescue apparatus according to the present invention.
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.
A emergency rescue device for many cars elevator system, elevator system includes guide rail, car, guider, stopper and suspension device, and guider and car all are connected on suspension device, and guider moves along the guide rail, and guider passes through suspension device guide car and moves along the guide rail. The brake is used for braking the car to stop the car.
The emergency rescue device comprises a retarder 2, a leveling device 4, an operation terminal and an emergency control unit 1. Retarder 2 is installed on suspension device, when the car abnormal operation, operation terminal operation retarder 2 starts, produces the effort opposite with car traffic direction, and the non-definite value of effort, the car descends to the flat bed position and stops.
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 braking 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.
The retarder 2 comprises a force application unit and a wedge-shaped movable wedge, the force application unit is connected with the movable wedge and drives the movable wedge to move along the wedge-shaped surface to be in contact with the surface opposite to the wedge-shaped surface and compress the guide rail, and the force application unit is electrically connected with the emergency control unit 1.
The force application unit can be a driving component and is connected with and drives the movable wedge block to move. In other words, the force application unit itself is a power device, and no external power component is needed, and in this case, the force application unit is a power device such as an electric push rod, an air cylinder or a hydraulic cylinder, and can be directly connected with and drive the movable wedge block.
The force application unit can also be a transmission component, in this case, the force application unit does not have power per se and only can transmit power. The force application unit is connected with the power component, and the power component drives the movable wedge block to move through the force application unit. The force applying unit is a screw nut, a connecting rod and the like.
The retarder 2 has a detailed structure disclosed in the applicant's application No. 2020110131620, and other structures such as a guide device and a suspension device also have detailed structures disclosed in other patents of the applicant, so that repeated description is not provided.
The leveling device 4 is used to achieve the leveling function of the car, in other words, the leveling device 4 is used to detect whether the car reaches a level and/or to lock the car at the level. Correspondingly, the leveling device 4 comprises a leveling sensor and a leveling mechanical automatic lock.
The automatic flat mechanical lock is arranged on a car or a suspension device, the automatic flat mechanical lock is electrically connected with the emergency control unit 1, and when the car runs to a flat position, the automatic flat mechanical lock locks the car. The automatic lock of flat bed machinery includes bolt structure and drive part, and the interval is equipped with a plurality of pinholes on the guide rail, and pinhole number corresponds with building thing layer number, and bolt structure can insert the pinhole, and when bolt structure inserted the pinhole, the car was locked at a certain flat bed. The emergency control unit 1 is electrically connected with and can control the driving part, so that the driving part drives the bolt structure to move. Specifically, the driving component exerts an acting force on the pin structure, the pin structure contacts the guide rail and runs along the guide rail under the acting force of the driving component when the lift car runs, and the pin structure is inserted into the pin hole in the guide rail under the acting force of the driving component when the lift car runs to the pin hole, so that the lift car is locked. The emergency control unit 1 can also control the plug pin structure to be pulled out of the pin hole. The driving part is a hydraulic device, an electric device or a magnet and the like. The automatic control scheme of the hydraulic device can adopt the scheme in the prior art, and the details are not repeated. When the emergency control unit 1 receives a signal of the operation terminal, the emergency control unit 1 controls the driving part to act.
The leveling inductor comprises an induction A end and a plurality of induction B ends, the induction A end is installed on a suspension device or a car, the plurality of induction B ends are installed at an elevator exit of each floor of a building respectively, when the car is located on a certain leveling layer, the induction A end can induce the induction B end of the leveling layer, and induction information is sent to the emergency control unit 1.
The operation terminals comprise an external operation terminal 33 and an internal operation terminal positioned in the car, the internal operation terminal comprises a first operation terminal 32 in the car and a second operation terminal 31 in the car, the external operation terminal 33 is positioned in an elevator control center outside the car, and the first operation terminal 32 in the car and the second operation terminal 31 in the car are positioned in the car.
The external operation terminal 33, the in-car first operation terminal 32, and the in-car second operation terminal 31 are connected to the urging unit in parallel, respectively. Specifically, the external operation terminal 33 and the first operation terminal 32 in the car are electrically connected to the emergency control unit 1, the force application unit is electrically connected to the emergency control unit 1, and after the emergency control unit 1 receives an operation instruction of the external operation terminal 33 or the first operation terminal 32 in the car, the emergency control unit 1 controls the force application unit to operate. That is, the external operation terminal 33 and the first in-car operation terminal 32 are connected to the biasing means through the emergency control means 1.
The second operation terminal 31 in the car is mechanically connected to the force application unit, and when the second operation terminal 31 in the car is started to operate, the second operation terminal 31 in the car directly drives the force application unit to operate. The second operation terminal 31 in the car is also electrically connected with the emergency control unit 1, so that the emergency control unit 1 can detect whether the second operation terminal 31 in the car acts, and the operation can be realized through a position sensor and the like in the prior art, and the description is omitted. In other words, the external operation terminal 33 and the in-car first operation terminal 32 can be regarded as a semi-automatic operation mode, and the in-car second operation terminal 31 can be regarded as a manual operation mode. The first in-car operation terminal 32 and the second in-car operation terminal 31 are provided with an error prevention cover for preventing an error operation.
The external operation terminal 33 may be an operation button or switch provided at a central control room outside the car, etc., the first in-car operation terminal 32 may be an operation button or switch provided inside the car, and the second in-car operation terminal 31 may be a labor-saving mechanical device such as a tension rod provided inside the car.
The external operation terminal 33, the first in-car operation terminal 32 and the second in-car operation terminal 31 are respectively interlocked with the brake in parallel: when the external operation terminal 33, the first operation terminal 32 in the car or the second operation terminal 31 in the car is started, the brake is driven to be not completely released, and particularly, the brake is released until the car can move on the guide rail.
The force application unit has a self-locking function, namely when the force application unit loses driving force, the force application load can still be kept, the reliability of the force application unit is ensured, meanwhile, the force application unit does not need to be applied and operated constantly during manual operation (the second operation terminal 31 in the car acts), and convenience is brought to passengers in the car to carry out operation. When the force application unit is a power device such as an electric push rod, an air cylinder or a hydraulic cylinder or a transmission component such as a screw rod nut, self-locking can be realized through the prior art scheme, and the description is omitted.
The emergency control unit 1 comprises a processor, an alarm device, a display interface in the car and the like.
The display interface in the car is arranged in the car and can display the current state, including the current running speed of the car, the safety state, the force application load (the suggested load and the actual load), the emergency display, the operation guide, whether the car is on the flat layer and the like.
The processor is used for receiving the information sent by the connected component, making an instruction according to the received information and the set program and sending the instruction to the specific action component.
The leveling sensor sends the sensing information to the emergency control unit 1, and the sensing information is displayed on a display interface in the car to remind passengers that the car is at a leveling level at the moment. At the moment, the bolt structure of the flat mechanical automatic lock is aligned with the pin hole on the guide rail.
Audible and visual alarms are arranged in the elevator control center outside the lift car and in the lift car, and when the emergency control unit 1 judges that the elevator is in an emergency rescue state, the audible and visual alarms give an alarm.
The working process of the invention is as follows: when the emergency control unit 1 judges that the elevator is in an emergency rescue state, the sound-light alarm device gives an alarm, a worker in an elevator control center starts the external operation terminal 33 after receiving the alarm information, and the emergency control unit 1 controls the force application unit to act after receiving the action information of the external operation terminal 33; or when passengers in the elevator receive the alarm information, the first operation terminal 32 in the elevator car is started, and the emergency control unit 1 receives the action information of the first operation terminal 32 in the elevator car and then controls the action of the force application unit; or when the passenger in the elevator receives the alarm information and then starts the second operation terminal 31 in the car, the second operation terminal 31 in the car directly drives the force application unit to act. The force application unit is linked with a brake of the elevator, so that the brake is released until the car can move, and meanwhile, the retarder 2 is contacted with the guide rail and applies force to the guide rail, so that an acting force opposite to the running direction of the car is generated between the retarder 2 and the guide rail, and the car runs at a slow speed. After the emergency control unit 1 receives the action information of the external operation terminal 33 or the first operation terminal 32 in the car or the second operation terminal 31 in the car, a display interface in the car can display corresponding action information, meanwhile, the emergency control unit 1 sends an instruction to control the action of a driving part of the flat mechanical automatic lock, so that the driving part drives the pin structure to act, when the car slowly operates, the pin structure contacts with the guide rail under the action force of the driving part, when the car operates to the pin hole, the pin structure is inserted into the pin hole in the guide rail under the action force of the driving part, so that the car is locked, and at the moment, the car stops at the flat structure, and rescue and escape are facilitated. And when the elevator car reaches the leveling layer, the processor receives the induction signal of the induction A end and displays information of the arrival of the elevator car at the leveling layer on the interface in the elevator car.
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. The emergency rescue device for the multi-car elevator system comprises a guide rail, a car, a guide device, a brake and a suspension device, wherein the guide device and the car are connected to the suspension device, the guide device runs along the guide rail and guides the car to run along the guide rail through the suspension device, the emergency rescue device is characterized in that the car has a leveling function and comprises an emergency control unit (1), a retarder (2) and an operation terminal, the retarder is electrically connected with the emergency rescue device respectively, when the car does not normally run, the operation terminal operates the retarder (2) to be started, an acting force opposite to the running direction of the car is generated, the acting force is not constant, and the car descends to a leveling position to stop; the operator terminal includes an internal operator terminal located within the car.
2. The emergency rescue apparatus according to claim 1, wherein the retarder (2) is mounted on the car or the suspension device, the retarder (2) comprises a force application unit and an action unit, the force application unit is connected with and drives the action unit to act, and the action unit contacts the guide rail and generates an acting force opposite to the running direction of the car with the guide rail.
3. The emergency rescue apparatus according to claim 2, wherein the internal operation terminal comprises a first operation terminal (32) in the car and a second operation terminal (31) in the car which are independently connected with the force application unit in parallel, the first operation terminal (32) in the car is electrically connected with the emergency control unit (1), when the emergency control unit (1) receives an action command of the first operation terminal (32) in the car, the emergency control unit (1) controls the force application unit to act, and the second operation terminal (31) in the car is mechanically connected with the force application unit.
4. Emergency rescue apparatus according to claim 7, characterized in that the operator terminal further comprises an external operator terminal (33) located outside the car, the external operator terminal (33), the first in-car operator terminal (32) and the second in-car operator terminal (31) being connected in parallel to the force application unit, respectively.
5. Emergency rescue apparatus according to claim 9, characterized in that the external operation terminal (33) is located at an elevator control center outside the car.
6. Emergency rescue apparatus according to claim 9, characterized in that the external operating terminal (33), the first in-car operating terminal (32) and the second in-car operating terminal (31) are respectively associated in parallel with the brake: when an external operating terminal (33), a first operating terminal (32) in the car or a second operating terminal (31) in the car is activated, the brake is released until the car can move on the guide rail.
7. Emergency rescue apparatus according to claim 2, characterized in that it further comprises a levelling device (4) for achieving a levelling function.
8. Emergency rescue apparatus according to claim 14, characterized in that the levelling means (4) comprise an automatic levelling mechanical lock mounted on the car or on the suspension means, which is electrically connected to the emergency control unit (1), which locks the car when it is moved into the levelling position.
9. An emergency rescue apparatus according to claim 15, wherein the automatic mechanical flat bed lock comprises a pin structure and a driving member, a plurality of pin holes are spaced on the guide rail, the pin structure can be inserted into the pin holes, and when the pin structure is inserted into the pin holes, the car is locked at a certain flat bed, the emergency control unit (1) is electrically connected to and can control the driving member, so that the driving member drives the pin structure to move.
10. An emergency rescue apparatus according to claim 16, wherein the driving member applies a force to the latch structure, the latch structure contacts the guide rail under the force of the driving member when the car is running, and the latch structure is inserted into the pin hole of the guide rail under the force of the driving member when the car is running to the pin hole, so that the car is locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011500971.4A CN115535770B (en) | 2020-12-18 | 2020-12-18 | Emergency rescue device for multi-car elevator system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011500971.4A CN115535770B (en) | 2020-12-18 | 2020-12-18 | Emergency rescue device for multi-car elevator system |
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| CN115535770A true CN115535770A (en) | 2022-12-30 |
| CN115535770B CN115535770B (en) | 2024-09-24 |
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2020
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| CN115535770B (en) | 2024-09-24 |
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