CN103482445A - Detection method for preventing elevator car from moving accidentally - Google Patents
Detection method for preventing elevator car from moving accidentally Download PDFInfo
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- CN103482445A CN103482445A CN201310443451.8A CN201310443451A CN103482445A CN 103482445 A CN103482445 A CN 103482445A CN 201310443451 A CN201310443451 A CN 201310443451A CN 103482445 A CN103482445 A CN 103482445A
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- 238000001514 detection method Methods 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 22
- 238000002955 isolation Methods 0.000 claims description 39
- 238000007689 inspection Methods 0.000 claims description 7
- 210000001364 upper extremity Anatomy 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 230000005389 magnetism Effects 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 2
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 230000001960 triggered effect Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 208000033748 Device issues Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
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Abstract
The invention discloses a detection method for preventing an elevator car from moving accidentally. In the process of using the method, two flat floor sensors and a flat floor magnetism separation plate are mainly included, and an elevator control system receives feedback signals emitted by the flat floor sensors after the flat floor magnetism separation plate inserts into the flat floor sensors for judging the moving state of the elevator car and detecting accidental moving of the elevator car. By the aid of the method, other extra detection means or switches are not added in an original elevator system, so cost is saved. An elevator car stop device can be triggered only when abnormal moving of the elevator is detected through signal induction feedbacks of the flat floor sensors, and accordingly the method is favorable for guaranteeing the service life of elevator parts and reducing damages of the elevator parts.
Description
Technical field
The present invention relates to the elevator traction field, especially relate to a kind of method of inspection that prevents accidental movement of elevator cage.
Background technology
Elevator form commonly used is traction-type at present, adopts steel rope that lift car is being hung, and by the friction force between steel rope and towing machine, makes car be moved, a similar assembly pulley.When lift car is positioned at floor and opens the door zone, towing machine stops operating, drg on towing machine is in closure state simultaneously, the effect of similar vehicle tyre brake, traction sheave locking by lay winding wire ropes on towing machine, it is no longer rotated, and this is the lift car transfixion, so that upper and lower passenger.When lift car need move, the towing machine electrical motor is started working, while releasing of brake traction sheave, and car can move up and down.
Lift car refers to elevator ride personnel's space, accidental movement of elevator cage refers to when originally needing lift car actionless, and as above, during lower passenger, car is but because a variety of causes is still moving, now dangerous high, personal casualty danger very easily appears.The reason of accidental movement of elevator cage has following several:
The one, friction force deficiency between steel rope and traction sheave; The 2nd, traction machine brake goes wrong, can't the locking traction sheave; The 3rd, the traction sheave axle fracture.Analysis to reason:
The first reason requires to be calculated to avoid according to national standard during generally by elevator design, and this factor stops Shi Jinan at elevator and occurs simultaneously, because skidding appears in the friction force deficiency, is generally at elevator stopping and while starting.
The second, three kinds are former because towing machine sole mass problem.The car accidental movement accident that statistics often occurs at present in the world is all because the second reason causes basically.
Its common ground is all arranged in first, second and third kind in above reason when occurring, i.e. traction machine brake action, but car is still removable.
A kind of folder steel wire rope type fender guard that prevents the car accidental movement that application number is 201110290191; In this patent, the realization of its elaboration prevents that the method for car accidental movement from being: a kind of folder steel wire rope type fender guard that prevents the car accidental movement of the present invention; its principle of work is; when elevator normally moves; the magnetic force produced after electromagnetic spool device energising will inwardly compress and suck, and the steel rope brake assembly is opened and do not clamped traction steel-cable.When lift car leveling opening, the safety door latch loop disconnects, leveling device issues a signal to the elevator control circuit plate, the elevator control circuit plate is controlled the electromagnetic spool device outage after receiving signal, electromagnetic spool device loses magnetic force, the outside ejection of holddown spring will brake iron block and the braking nylon block is pressed in traction steel-cable, under the clamping action of the braking nylon block of the traction steel-cable left and right sides, car can not move up or down, can effectively avoid occurring the situation of car accidental movement in leveling zone, reduce the potential safety hazard that brings the passenger, improve the safety of elevator.When the car door door-closing in-place, the safety door latch loop is connected, and electromagnetic spool device obtains electric, and magnetic force is regained holddown spring and steel rope brake assembly, and car normally moves.In the disclosure file; the car accidental movement is not detected; but stopping when ladder opens the door all to make car shutdown feature (the described folder steel wire rope type of this patent fender guard) action at every turn; so frequently traction steel-cable is carried out to cramping; be easy to make elevator wire rope impaired; gently reduce elevator wire rope service life, heavy make elevator wire rope occur that major injury even ruptures, thus safety misadventure occurs.
Summary of the invention
The objective 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, thereby realize preventing the detection of car accidental movement.
The present invention adopts following technical scheme: a kind of method of inspection that prevents accidental movement of elevator cage, in the method, when lift car is stopping ladder while opening the door, apparatus for controlling elevator is detected the signal of traction machine brake and flat bed inductor simultaneously, controls the work of traction machine brake according to detection signal:
Be provided with the flat bed magnetic isolation plate on each level position of elevator rail, be provided with on lift car for the mounting bracket of flat bed inductor is installed, be provided with upper and lower two flat bed inductors on mounting bracket;
When lift car, during at level position, the flat bed magnetic isolation plate inserts in two flat bed inductors, and the signal that apparatus for controlling elevator detects the flat bed inductor is normal condition;
When the lift car accident moves down, the flat bed inductor of mounting bracket below breaks away from the flat bed magnetic isolation plate, the signal that apparatus for controlling elevator detects the flat bed inductor is abnomal condition, apparatus for controlling elevator and transmitting control signal, control wire holder and safety tongs work, the locking elevator wire rope, stop lift car 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, and the flat bed inductor of mounting bracket top and flat bed magnetic isolation plate upper limb are apart from 30mm, and the flat bed inductor of mounting bracket below and flat bed magnetic isolation plate lower edge are apart from 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 the flat bed magnetic isolation plate, the flat bed magnetic isolation plate is arranged on the guide rail of lift car, and the mounting bracket upside is installed two horseshoe clamp layer inductors.
Horseshoe clamp layer inductor relatively transmits and interacts by two inboards of U-shaped, and apparatus for controlling elevator judges the state of kinematic motion of lift car by the induced signal of accepting horseshoe clamp layer inductor; And on the outer field mounting bracket of lift car, be the flat bed inductor that two U-shapeds are installed, when the flat bed inductor of two U-shapeds all is inserted into the flat bed magnetic isolation plate, the induced signal that send respectively two inboards of two horseshoe clamp layer inductors just can not be switched on, therefore electric life controller just can stop according to signal judgement lift car now, lift car enters mode of operation, upper and lower passenger.
Because when 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, and when the car stopped is moved because of unforeseen circumstances, the flat bed inductor on mounting bracket will break away from the flat bed magnetic isolation plate.Once the flat bed inductor breaks away from the flat bed magnetic isolation plate, the just energy conducting of the induced signal of two inboards of horseshoe clamp layer inductor, it is abnomal condition that the detection signal that apparatus for controlling elevator receives will be judged as current car movement state, therefore apparatus for controlling elevator is just controlled wire holder or safety tongs work at once, the locking steel cable, stop the movement of car, and wait for control command or carry out the prediction scheme of the default emergency of apparatus for controlling elevator.
In sum, owing to having adopted technique scheme, the invention has the beneficial effects as follows:
Without increasing other extra detection means or switches, cost-saving on former elevator device, increase and prevent that car accidental movement device is extremely convenient for old ladder transformation especially.
Take full advantage of the relation of flat bed inductor and flat bed magnetic isolation plate, because there is the stroke of certain-length in elevator wire rope, and the flat bed inductor generally all has 10 ~ 20mm surplus at level position anomaly layer magnetic isolation plate edge, so can fully avoid due to the flexible car shutdown feature misoperation situation occurred of elevator wire rope.
Just can touch the car shutdown feature when extremely mobile car being detected, for elevator, guarantee the service life of elevator components and reduce more favourable to its damage.
The 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: the 1st, flat bed magnetic isolation plate, the 2nd, flat bed inductor, the 3rd, mounting bracket.
The specific embodiment
Disclosed all features 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, the residing position under normal condition for flat bed magnetic isolation plate 1 and flat bed inductor 2, 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, in every layer of place that needs lift car to stop, a flat bed magnetic isolation plate all is installed.Flat bed inductor 2 shape that takes the shape of the letter U, when lift car moves the flat bed that paper need to stop, flat bed magnetic isolation plate 1 just slips in the U-lag of flat bed inductor 2.
The U-lag of two flat bed inductors 2 is interior after inserting flat bed magnetic isolation plate 1, the signal that interacts in inductor just is blocked, the signal that flat bed inductor 2 feeds back to apparatus for controlling elevator is just normal condition, detects the state of lift car by the signal condition of two flat bed inductors of continuous judgement, 2 feedbacks.When something unexpected happened, lift car moves, flat bed inductor 2 on mounting bracket 3 is followed lift car and is moved together, flat bed inductor 2 progressively breaks away from flat bed magnetic isolation plate 1, when once flat bed inductor 2 breaks away from flat bed magnetic isolation plate 1 fully, the signal conduction that interacts in flat bed inductor 2, feeding back to the signal of apparatus for controlling elevator and being judged as 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 stopped at lift car, the length of flat bed magnetic isolation plate 1 is greater than two distances between flat bed inductor 2, when flat bed magnetic isolation plate 1 inserts in the U-lag of 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 that apparatus for controlling elevator is set initial condition, the namely safe condition of lift car after stopping.When apparatus for controlling elevator is not received from outside control command; the flat bed inductor 2 of the below on mounting bracket 3 breaks away from flat bed magnetic isolation plate 1; apparatus for controlling elevator and be judged to be lift car and sentence improper unsafe condition, and control and shut down immediately, until remove fault.
The edge of flat bed magnetic isolation plate 1 and flat bed inductor 2 retain the distance of 30mm, if meet under normal circumstances flexible of elevator steel cable, the shift in position that causes flat bed inductor 2, but only otherwise the scope that breaks away from 300mm, apparatus for controlling elevator just can be by steel cable yet the flexible accidental movement of elevator cage that is judged as under normal circumstances, farthest guarantee the accuracy of checking system.
The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination disclosed in this manual, and the arbitrary new method disclosed or step or any new combination of process.
Claims (3)
1. a method of inspection that prevents accidental movement of elevator cage, in the method, when lift car is stopping ladder while opening the door, apparatus for controlling elevator is detected the signal of traction machine brake and flat bed inductor simultaneously, control the work of traction machine brake according to detection signal, it is characterized in that:
Be provided with the flat bed magnetic isolation plate on each level position of elevator rail, be provided with on lift car for the mounting bracket of flat bed inductor is installed, be provided with upper and lower two flat bed inductors on mounting bracket;
When lift car, during at level position, the flat bed magnetic isolation plate inserts in two flat bed inductors, and the signal that apparatus for controlling elevator detects the flat bed inductor is normal condition;
When the lift car accident moves down, the flat bed inductor of mounting bracket below breaks away from the flat bed magnetic isolation plate, the signal that apparatus for controlling elevator detects the 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 that prevents accidental movement of elevator cage according to claim 1, it is characterized by described flat bed inductor is U-shaped, described flat bed magnetic isolation plate inserts in U-shaped.
3. a kind of method of inspection that prevents accidental movement of elevator cage according to claim 1 and 2, it is characterized by the flat bed inductor of described flat bed magnetic isolation plate insertion U-shaped, the flat bed inductor of mounting bracket top and flat bed magnetic isolation plate upper limb are apart from 30mm, and the flat bed inductor of mounting bracket below and flat bed magnetic isolation plate lower edge are apart from 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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| CN103482445B CN103482445B (en) | 2015-10-21 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104150316A (en) * | 2014-08-07 | 2014-11-19 | 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 |
| CN110526066A (en) * | 2019-09-19 | 2019-12-03 | 日立楼宇技术（广州）有限公司 | A kind of detection method of elevator leveling switch, apparatus and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09188487A (en) * | 1996-01-08 | 1997-07-22 | Hitachi Building Syst Co Ltd | Device to mount apparatus in hoistway for elevator |
| 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 | Device to mount apparatus in hoistway for elevator |
| 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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104150316A (en) * | 2014-08-07 | 2014-11-19 | 江苏蒙哥马利电梯有限公司 | Device for preventing elevator cage from abnormally moving |
| 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 |
| CN110526066A (en) * | 2019-09-19 | 2019-12-03 | 日立楼宇技术（广州）有限公司 | A kind of detection method of elevator leveling switch, apparatus and system |
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| CN103482445B (en) | 2015-10-21 |
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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. |