CN103482445B - A kind of method of inspection preventing accidental movement of elevator cage - Google Patents
A kind of method of inspection preventing accidental movement of elevator cage Download PDFInfo
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- CN103482445B CN103482445B CN201310443451.8A CN201310443451A CN103482445B CN 103482445 B CN103482445 B CN 103482445B CN 201310443451 A CN201310443451 A CN 201310443451A CN 103482445 B CN103482445 B CN 103482445B
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- 238000007689 inspection Methods 0.000 title claims abstract description 9
- 238000002955 isolation Methods 0.000 claims abstract description 41
- 238000001514 detection method Methods 0.000 claims abstract description 7
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- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The invention discloses a kind of method of inspection preventing accidental movement of elevator cage, two flat bed inductors and flat bed magnetic isolation plate is mainly included in the method process, the feedback signal that after accepting flat bed magnetic isolation plate insertion flat bed inductor by apparatus for controlling elevator, flat bed inductor sends, judge the state of kinematic motion of lift car, detect the accidental movement of lift car; Enforcement of the present invention nothing on former elevator device increases other extra detection means or switches, cost-saving; By the induction of signal of flat bed inductor feedback detect car abnormal mobile time just can touch car shutdown feature, the service life of elevator components is ensured for elevator and reduces to its damage advantageously.
Description
Technical field
The present invention relates to elevator traction field, especially relate to a kind of method of inspection preventing accidental movement of elevator cage.
Background technology
The form that current elevator is conventional is traction-type, namely adopts steel rope by elevator car suspension, by the friction force between steel rope and towing machine, car is moved, a similar assembly pulley.When lift car is positioned at floor enabling region, towing machine stops operating, drg simultaneously on towing machine is in closure state, the effect of similar vehicle tyre brake, by the traction sheave locking of lay winding wire ropes on towing machine, make it no longer rotate, this is lift car transfixion, so that upper and lower passenger.When lift car need move, towing machine electrical motor is started working, simultaneously releasing of brake traction sheave, and car can move up and down.
Lift car refers to the space of elevator ride personnel, time accidental movement of elevator cage refers to and originally needs lift car actionless, as above, lower passenger time, car is but because a variety of causes is still moving, now dangerous high, very easily occur that personal casualty is dangerous.The reason of accidental movement of elevator cage has following several:
One is that between steel rope and traction sheave, friction force is not enough; Two is that traction machine brake goes wrong, cannot locking traction sheave; Three is traction sheave axle fractures.Analysis to reason:
The first reason is generally by requiring to carry out calculating to avoid according to national standard during elevator design, and simultaneously this factor is extremely difficult when elevator stops occurs, generally because friction force deficiency occurs that skidding is when elevator stopping and startup.
The second, three kinds of reasons are towing machine sole mass problem.The car accidental movement accident that statistics often occurs at present is in the world all because the second reason causes substantially.
All have its common ground when occurring in first, second and third kind in above reason, i.e. traction machine brake action, but car is still removable.
Application number is a kind of folder steel wire rope type fender guard preventing car accidental movement of 201110290191; Its realization of setting forth prevents the method for car accidental movement from being in that patent: a kind of folder steel wire rope type fender guard preventing car accidental movement of the present invention; its principle of work is; when elevator normally runs; compression inwardly sucks by the magnetic force produced after electromagnetic spool device energising, and steel rope brake assembly is opened and do not clamp traction steel-cable.When lift car leveling opening, safety door latch loop disconnects, leveling device issues a signal to elevator control circuit plate, electromagnetic spool device power-off is controlled after elevator control circuit plate Received signal strength, electromagnetic spool device loses magnetic force, holddown spring outwards ejects and braking iron block and detent nylon block is pressed in traction steel-cable, under the clamping action of the detent nylon block of the traction steel-cable left and right sides, car can not move up or down, effectively can avoid the situation that car accidental movement in leveling zone occurs, reduce the potential safety hazard bringing passenger, improve the safety of elevator.When car door door-closing in-place, safety door latch loop is connected, and electromagnetic spool device obtains electric, and holddown spring and steel rope brake assembly are regained by magnetic force, and car normally runs.In the disclosure file; car accidental movement is not detected; but all make car shutdown feature (the folder steel wire rope type fender guard described in this patent) action when stopping ladder enabling at every turn; so frequently traction steel-cable is clamped; be easy to make elevator wire rope impaired; light then reduce elevator wire rope service life, heavy then elevator wire rope is occurred major injury even ruptures, thus generation safety misadventure.
Summary of the invention
The object of the invention is on existing elevator structure basis, a kind of new method of inspection is proposed, by the induced signal between analysis and control flat bed inductor and flat bed magnetic isolation plate, realize the control to elevator traction machine, thus realize the detection preventing car accidental movement.
The present invention adopts following technical scheme: a kind of method of inspection preventing accidental movement of elevator cage, in this method, when lift car is when stopping ladder and opening the door, the signal of apparatus for controlling elevator to traction machine brake and flat bed inductor detects simultaneously, controls the work of traction machine brake according to detection signal:
Each level position of elevator rail being provided with flat bed magnetic isolation plate, lift car being provided with the mounting bracket for installing flat bed inductor, mounting bracket is provided with upper and lower two flat bed inductors;
When lift car is at level position, flat bed magnetic isolation plate inserts in two flat bed inductors, and apparatus for controlling elevator detects that the signal of flat bed inductor is normal condition;
When lift car surprisingly moves down, flat bed inductor below mounting bracket departs from flat bed magnetic isolation plate, apparatus for controlling elevator detects that the signal of flat bed inductor is abnomal condition, apparatus for controlling elevator and transmitting control signal, control wire holder and safety tongs work, locking elevator wire rope, makes lift car stop mobile.
In technique scheme, described flat bed inductor is U-shaped, and described flat bed magnetic isolation plate inserts in U-shaped.
In technique scheme, described flat bed magnetic isolation plate inserts in the flat bed inductor of U-shaped, the flat bed inductor above mounting bracket and flat bed magnetic isolation plate upper limb distance 30mm, the flat bed inductor below mounting bracket and flat bed magnetic isolation plate lower edge distance 30mm.
In the present invention, mounting bracket is arranged on the outside of lift car, when lift car stops to every layer, each flat bed position corresponding with the mounting bracket on lift car arranges flat bed magnetic isolation plate, flat bed magnetic isolation plate is arranged on the guide rail of lift car, and installs two horseshoe clamp layer inductors on the upside of mounting bracket.
Horseshoe clamp layer inductor by U-shaped two inside the mutual induction of relative transmission signal, apparatus for controlling elevator judges the state of kinematic motion of lift car by the induced signal accepting horseshoe clamp layer inductor; And the outer field mounting bracket of lift car is the flat bed inductor being provided with two U-shapeds, when the flat bed inductor of two U-shapeds is all inserted into flat bed magnetic isolation plate, two horseshoe clamp layer inductors two inside the induced signal that sends respectively just can not be switched on, therefore electric life controller just can judge that according to signal now lift car stops, lift car enters mode of operation, upper and lower passenger.
Because time car stops, the two ends of inserting the flat bed magnetic isolation plate of two horseshoe clamp layer inductors are reserved with the distance of 30mm, when the car stopped is moved because of unforeseen circumstances, the flat bed inductor on mounting bracket will depart from flat bed magnetic isolation plate.Flat bed inductor is once depart from flat bed magnetic isolation plate, horseshoe clamp layer inductor two inside induced signal just can conducting, the detection signal that apparatus for controlling elevator receives will be judged as that current car movement state is abnomal condition, therefore apparatus for controlling elevator just controls wire holder or safety tongs work at once, locking steel cable, stop the movement of car, and wait for the prediction scheme of the emergency that control command or execution apparatus for controlling elevator are preset.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
Without increasing other extra detection means or switches on former elevator device, cost-saving, prevent car accidental movement device extremely convenient for old ladder transformation increase especially.
Make full use of the relation of flat bed inductor and flat bed magnetic isolation plate, because elevator wire rope exists the stroke of certain length, and flat bed inductor generally all has 10 ~ 20mm surplus at level position anomaly layer magnetic isolation plate edge, thus can fully avoid due to elevator wire rope stretch occur car shutdown feature misoperation situation.
Detect car abnormal mobile time just can touch car shutdown feature, the service life of elevator components is ensured for elevator and reduces to its damage advantageously.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is flat bed inductor and flat bed magnetic isolation plate normal position figure;
The site plan of flat bed inductor and flat bed magnetic isolation plate when Fig. 2 is accidental movement of elevator cage;
Fig. 3 be flat bed inductor and flat bed magnetic isolation plate overlook relative position figure;
Wherein: 1 is flat bed magnetic isolation plate, 2 is flat bed inductors, and 3 is mounting brackets.
Detailed description of the invention
All features disclosed in this specification sheets, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
As shown in Fig. 1, for the position that flat bed magnetic isolation plate 1 and flat bed inductor 2 are residing in normal state, mounting bracket 3 is arranged on the outside of lift car, two flat bed inductors 2 are arranged on mounting bracket 3, flat bed magnetic isolation plate 1 is arranged on the side on the guide rail of lift car, all installs a flat bed magnetic isolation plate in every layer of place needing lift car to stop.Flat bed inductor 2 takes the shape of the letter U shape, when lift car move paper need the flat bed stopped time, flat bed magnetic isolation plate 1 just slips in the U-lag of flat bed inductor 2.
When after insertion flat bed magnetic isolation plate 1 in the U-lag of two flat bed inductors 2, mutual induction signal in inductor is just blocked, the signal that flat bed inductor 2 feeds back to apparatus for controlling elevator is just normal condition, by constantly judging the state of the signal condition detection lift car that two flat bed inductors 2 feed back.When something unexpected happened, lift car moves, follow lift car when the flat bed inductor 2 on mounting bracket 3 to move together, flat bed inductor 2 progressively departs from flat bed magnetic isolation plate 1, when flat bed inductor 2 once depart from flat bed magnetic isolation plate 1 completely, mutual induction signal conduction in flat bed inductor 2, feed back to the signal of apparatus for controlling elevator and be judged as that current state is abnomal condition, apparatus for controlling elevator sends control command immediately, control wire holder or safety tongs clamping steel rope, lift car is stopped mobile.
In the process that lift car stops, the length of flat bed magnetic isolation plate 1 is greater than the distance between two flat bed inductors 2, when in the U-lag that flat bed magnetic isolation plate 1 inserts two flat bed inductors 2, two flat bed inductors 2 are respectively apart from the edge 30mm of flat bed magnetic isolation plate 1, this is apparatus for controlling elevator setting initial condition, namely lift car safe condition after a stop.When apparatus for controlling elevator does not receive the control command from outside; the flat bed inductor 2 of the below on mounting bracket 3 departs from flat bed magnetic isolation plate 1; apparatus for controlling elevator and be judged to be that lift car sentences improper unsafe condition, and control immediately to shut down, until remove fault.
The edge of flat bed magnetic isolation plate 1 and flat bed inductor 2 retain the distance of 30mm, if meet elevator steel cable under normal circumstances flexible, cause the shift in position of flat bed inductor 2, but only otherwise depart from the scope of 300mm, steel cable under normal circumstances flexible also would not be judged as accidental movement of elevator cage by apparatus for controlling elevator, farthest ensures the accuracy of checking system.
The present invention is not limited to aforesaid detailed description of the invention.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (3)
1. one kind prevents the method for inspection of accidental movement of elevator cage, in this method, when lift car is when stopping ladder and opening the door, the signal of apparatus for controlling elevator to traction machine brake and flat bed inductor detects simultaneously, control the work of traction machine brake according to detection signal, it is characterized in that:
Each level position of elevator rail being provided with flat bed magnetic isolation plate, lift car being provided with the mounting bracket for installing flat bed inductor, mounting bracket is provided with upper and lower two flat bed inductors;
When lift car is at level position, flat bed magnetic isolation plate inserts in two flat bed inductors, and apparatus for controlling elevator detects that the signal of flat bed inductor is normal condition;
When lift car surprisingly moves down, flat bed inductor below mounting bracket departs from flat bed magnetic isolation plate, apparatus for controlling elevator detects that the signal of flat bed inductor is abnomal condition, apparatus for controlling elevator and transmitting control signal, control wire holder or safety tongs work, lift car is stopped mobile.
2. a kind of method of inspection preventing accidental movement of elevator cage according to claim 1, it is characterized by described flat bed inductor is U-shaped, and described flat bed magnetic isolation plate inserts in U-shaped.
3. a kind of method of inspection preventing accidental movement of elevator cage according to claim 1 and 2, it is characterized by described flat bed magnetic isolation plate inserts in the flat bed inductor of U-shaped, flat bed inductor above mounting bracket and flat bed magnetic isolation plate upper limb distance 30mm, the flat bed inductor below mounting bracket and flat bed magnetic isolation plate lower edge distance 30mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310443451.8A CN103482445B (en) | 2013-09-26 | 2013-09-26 | A kind of method of inspection preventing accidental movement of elevator cage |
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| CN201310443451.8A CN103482445B (en) | 2013-09-26 | 2013-09-26 | A kind of method of inspection preventing accidental movement of elevator cage |
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| CN103482445A CN103482445A (en) | 2014-01-01 |
| CN103482445B true CN103482445B (en) | 2015-10-21 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104150316B (en) * | 2014-08-07 | 2017-05-24 | 江苏蒙哥马利电梯有限公司 | Device for preventing elevator cage from abnormally moving |
| CN104649094A (en) * | 2015-02-09 | 2015-05-27 | 昆山京都电梯有限公司 | Structure for preventing lift car from accidental movement |
| CN107720477A (en) * | 2016-08-12 | 2018-02-23 | 康力电梯股份有限公司 | A kind of door-opened elevator car slipping protection device |
| CN109650210A (en) * | 2019-01-30 | 2019-04-19 | 王国荣 | A method of preventing carriage accidental movement |
| CN110526066B (en) * | 2019-09-19 | 2021-03-19 | 日立楼宇技术（广州）有限公司 | Method, device and system for detecting elevator leveling switch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09188487A (en) * | 1996-01-08 | 1997-07-22 | Hitachi Building Syst Co Ltd | Elevator hoistway fixture mounting device |
| CN1436713A (en) * | 2002-02-05 | 2003-08-20 | 上海三菱电梯有限公司 | Directly stopping elevator system and its control method |
| CN202124375U (en) * | 2011-06-28 | 2012-01-25 | 苏州新达电扶梯部件有限公司 | Leveling frame |
| CN102344062A (en) * | 2011-06-28 | 2012-02-08 | 苏州新达电扶梯部件有限公司 | Leveling device for elevator car |
| CN202717459U (en) * | 2012-05-16 | 2013-02-06 | 杭州恒丰电梯有限公司 | Information device for elevator hoistway |
-
2013
- 2013-09-26 CN CN201310443451.8A patent/CN103482445B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09188487A (en) * | 1996-01-08 | 1997-07-22 | Hitachi Building Syst Co Ltd | Elevator hoistway fixture mounting device |
| CN1436713A (en) * | 2002-02-05 | 2003-08-20 | 上海三菱电梯有限公司 | Directly stopping elevator system and its control method |
| CN202124375U (en) * | 2011-06-28 | 2012-01-25 | 苏州新达电扶梯部件有限公司 | Leveling frame |
| CN102344062A (en) * | 2011-06-28 | 2012-02-08 | 苏州新达电扶梯部件有限公司 | Leveling device for elevator car |
| CN202717459U (en) * | 2012-05-16 | 2013-02-06 | 杭州恒丰电梯有限公司 | Information device for elevator hoistway |
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Address after: 621900 Mianyang province Sichuan City Youxian District Shima Town Industrial Zone Applicant after: SICHUAN CLIMB ELEVATOR CO.,LTD. Address before: 621900 Mianyang province Sichuan City Youxian District Shima Town Industrial Zone Applicant before: SICHUAN CLIMB ELEVATOR Co.,Ltd. |
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Denomination of invention: A kind of method of inspection that prevents accidental movement of elevator cage Effective date of registration: 20161031 Granted publication date: 20151021 Pledgee: Mianyang commercial bank Limited by Share Ltd. science and Technology Branch Pledgor: SICHUAN CLIMB ELEVATOR CO.,LTD. Registration number: 2016510000058 |
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Change date: 20180111 Registration number: 2016510000058 Pledgee after: Mianyang commercial bank Limited by Share Ltd. military and civilian integration branch of science and Technology Branch Pledgee before: Mianyang commercial bank Limited by Share Ltd. science and Technology Branch |
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Date of cancellation: 20180126 Granted publication date: 20151021 Pledgee: Mianyang commercial bank Limited by Share Ltd. military and civilian integration branch of science and Technology Branch Pledgor: SICHUAN CLIMB ELEVATOR CO.,LTD. Registration number: 2016510000058 |
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Denomination of invention: A kind of method of inspection that prevents accidental movement of elevator cage Effective date of registration: 20180209 Granted publication date: 20151021 Pledgee: Mianyang commercial bank Limited by Share Ltd. science and Education Business Park Branch Branch Pledgor: SICHUAN CLIMB ELEVATOR CO.,LTD. Registration number: 2018510000021 |
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Effective date of registration: 20221130 Address after: 057450 west side of South section of Fuqiang street, economic development zone, Xinmatou Town, Qiu county, Handan City, Hebei Province Patentee after: HEBEI KELAI ELEVATOR Co.,Ltd. Address before: 621900 Industrial Concentration Zone, Shima Town, Youxian District, Mianyang City, Sichuan Province Patentee before: SICHUAN CLIMB ELEVATOR CO.,LTD. |