CN101992984B - Protection device for abnormal movement during lift car leveling opening - Google Patents
Protection device for abnormal movement during lift car leveling opening Download PDFInfo
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- CN101992984B CN101992984B CN 201010531053 CN201010531053A CN101992984B CN 101992984 B CN101992984 B CN 101992984B CN 201010531053 CN201010531053 CN 201010531053 CN 201010531053 A CN201010531053 A CN 201010531053A CN 101992984 B CN101992984 B CN 101992984B
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- lift car
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Abstract
The invention discloses a protection device for abnormal movement during lift car leveling opening, which can prevent a lift car from moving when a lift car door is in an open mode. The protection device of the invention comprises control devices, action protection devices, bearing devices, a supporting part, an electric protection device and a warning device, wherein the control devices are fixed at the bottoms of two sides of the lift car door; the action protection devices are fixedly installed at the heads of two sides of the supporting part, and the middle part of the supporting part is connected with the bottom of the lift car; each bearing device is arranged in each leveling position in the shaft wall, and is matched with the corresponding action protection device; each action protection device is driven by the corresponding control device to reciprocate; when the lift car door is completely opened, the control devices drive the action protection devices to be embedded into the bearing devices, and keep the balance of the whole lift car when the lift car generates a movement trend; the electric protection device cuts off the electric circuit of a lift when the lift car is in the process of opening; and the warning device actuates a warning circuit when the lift car generates a gliding trend, and warns to prevent the use of the lift in an abnormal state.
Description
Technical field
The present invention relates to the protection of a kind of elevator safety and control technology, specifically, relate to a kind of at elevator behind flat bed, under the state that gate is opened, by the failure-free mechanical means device that operation stops to elevator.
Background technology
At present, elevator stops at level position, when opening the door operations such as carrying out personnel and goods turnover, it is to rely on the brake equipment on the towing machine to hold traction sheave tightly that the stopping of elevator keeps, and the traction friction force that adapts by designing requirement meeting generation and car rated load, nominal load between traction sheave and the traction steel-cable, this friction force overcome the car counterweight system and are delivered to the overbalance pulling force of traction steel-cable and form system quiescence.
In these cases, may produce following several potential safety hazard:
1, when the repair and maintenance personnel operation improper, or short circuit safety return circuit, the or during accidental switch of elevator operation contact, elevator might move under door opening state;
2, when brake device for elevator because of wear out failure, the drag friction power of band-type brake is not enough to overcome system load;
3, enter car when personnel and goods, and surpass the load-carrying capacity of system, the buzzer phone of lift car should sound and note with the prompting personnel, but when the passenger does not possess discernibility to this sound equipment, or buzzer phone lost efficacy loud, personnel and goods continue to enter car, cause car weight excessive, when the overbalance pulling force of traction steel-cable has overcome friction force between traction sheave and traction steel-cable.
More than in three kinds of situations, car is with the accident operation or slip movingly, as personnel and goods turnover car are arranged this moment, will occur that personnel and property are sheared or the serious safety misadventure such as extruding.At present, the personnel casualty accidents that causes owing to the car abnormal motion happens occasionally.
Summary of the invention
For above deficiency, the invention provides a kind of simple in structure, safe and reliable protection device for abnormal movement during lift car leveling opening, guarantee to open at gate, under the nominal situation of personnel and goods turnover, prevent the dangerous situation of car movement.
The present invention is achieved in that it comprises the control setup that is arranged at respectively the gate both sides and plays motion with one; be arranged at respectively the car both sides and play the action protecting device of motion and be arranged at the bearing device that each level position and respective action fender guard cooperatively interact in the well enclosure with one; each described action protecting device is reciprocating under the driving of control setup; when gate is opened fully; each described control setup drive actions fender guard snaps in bearing device; when elevator produces operation trend; stoped by support; the stop car is kept the balance of whole car by bearing device and action protecting device.
Each described control setup is a Horizontal control lever.
Each described action protecting device comprises the permanent seat of captive joint car; described permanent seat is rotatably connected to vertical bull stick; be fixedly connected with horizontal driving lever and follower lever on the described bull stick; described follower lever is positioned at the outside of described driving lever, is provided with reset attachment between described driving lever and the permanent seat.
Each described reset attachment comprises the side plate of captive joint permanent seat, and described side plate is positioned at the inboard of driving lever, is provided with spring between side plate and the driving lever, and driving lever is provided with position-limited lever, and described position-limited lever can locate and be supported on the side plate.
Driving lever and follower lever on each described bull stick arrange at an angle.
Each described bearing device is the fit supporting parts of square that is fixed on each level position in the well enclosure, and described supporting parts inboard has the draw-in groove that can block follower lever, and described draw-in groove inwall is provided with rubber gasket.
One of described action protecting device is provided with electric protective device; described electric protective device comprises the electric switch of the elevator electric control loop that is arranged on the side plate outside, and with the electric switch pressing plate on the driving lever of being fixed on of described electric switch interoperation.
Described protection device for abnormal movement during lift car leveling opening also is provided with warning device; described warning device comprises the alarm switch that is arranged on one of them follower lever outside; alarm switch is provided with contact; and be arranged near the permanent seat and power supply and the buzzer phone in its formation loop; when car produces movement tendency; follower lever will drive described alarm switch motion and touch bearing device, thereby the pressure head trigger alarm switch contact of alarm switch is connected buzzer phone, produces alerting signal.
The far-end of each described control stalk is formed with arc forked type cutting ferrule, and described cutting ferrule can entangle the driving lever of correspondence position, and cutting ferrule can slide along the outer wall of driving lever.
Be provided with strut member between described action protecting device and the car, described strut member is U-shaped structure, and its both sides head is installed with respectively action protecting device, and centre portion is connected with the car bottom.
Beneficial effect of the present invention:
1, under the state that gate is opened; make car enter pre-guard mode by action protecting device and bearing device matching relationship; can prevent elevator because the brake equipment wear out failure, when the drag friction power of band-type brake is not enough to overcome system load, the sliding suddenly of elevator.
2, under the state that gate is opened, cut off the electric loop of elevator by electric protective device, prevent because the repair and maintenance personnel operation is improper, or the short circuit safety return circuit, or during the accidental switch of elevator operation contact, elevator meets accident and slides;
3, open at gate, and under the state of car generation falling tendency, remind by warning device, prompting operation person stops hazardous act at once, withdraws car and notifies the maintainer processings of showing up, the use of prevention elevator under error state.
Description of drawings
Fig. 1 is the integral structure scheme drawing of protection device for abnormal movement during lift car leveling opening of the present invention;
Fig. 2 is the structural representation of control setup of the present invention;
Fig. 3 is the structural representation (gate closed condition) of action protecting device of the present invention;
Fig. 4 is the structural representation (gate opening) of action protecting device of the present invention
Fig. 5 is the scheme drawing of alarm loop of the present invention;
Fig. 6 is bearing device structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further set forth, wherein direction of the present invention is take Fig. 1 as standard.
As shown in Figure 1, protection device for abnormal movement during lift car leveling opening of the present invention comprises control setup 11, action protecting device 30 and bearing device 50.Wherein, control setup 11 is separately positioned on the bottom of gate 10 both sides; and make left and right sides crank motion with gate 10; action protecting device 30 is separately positioned on the car 13 both sides front ends; and with the up and down reciprocatingly operation of car 13 dos; bearing device 50 is arranged on each level position in the well enclosure; cooperatively interact with corresponding action protecting device 30; each described action protecting device 30 is reciprocating under the driving of corresponding control setup 11; when gate 10 is opened fully; the pulling force drive actions fender guard 30 that each described control setup 11 overcomes spring 34 snaps in bearing device 50; enter pre-guard mode; when car produces movement tendency; stop cage operation, and keep the balance of whole car 13 by bearing device 50 and action protecting device 30, lift car 13 can only the gap between the upper lower baffle plate of bearing device 50 in fine motion; and can not move and slip, thereby realized the limiting protecting that elevator moves.The steadiness that connects in order to keep action protecting device 30 to be connected with car, and the weight of considering car 13 can connect by strut member 20 between action protecting device 30 of the present invention and the car 13.Because device involved in the present invention need to be considered the problem of intensity and hardness, the present invention adopts the material of high strength and high hardness to make, and pays the utmost attention to steel material.
The below is described in detail with regard to each component part: as shown in Figure 2, control setup 11 is a Horizontal control lever, the far-end of control stalk is formed with arc forked type cutting ferrule 111, gate 10 opens the door in the process, described cutting ferrule 111 can entangle the driving lever 31 of correspondence position, and cutting ferrule 111 can slide along driving lever 31 outer walls; As shown in Figure 3 and Figure 4, each action protecting device 30 comprises the permanent seat 38 of captive joint car 13, vertical bull stick 36 is installed on the described permanent seat 38, between bull stick 36 and the permanent seat 38 for being rotationally connected, be fixedly connected with horizontal driving lever 31 and horizontal follower lever 35 on the bull stick 36, follower lever 35 is positioned at the outside of driving lever 31, and driving lever 31 arranges at an angle with follower lever 35, limited rate 90 degree of opening of the present invention are provided with reset attachment between driving lever 31 and the permanent seat 38; As shown in Figure 6, angle steel (or the square fit) supporting parts of each described bearing device 50 for being fixed on each level position in the well enclosure, described supporting parts inboard has the draw-in groove 51 (the angle steel dos-à-dos forms draw-in groove 51 up and down) that can block follower lever, and described draw-in groove 51 inwalls are provided with rubber gasket; Strut member 20 is U-shaped structure, and its both sides head is installed with respectively action protecting device 30, and centre portion is connected with car 13 bottoms.
Above-mentioned reset attachment can adopt various ways to realize, the present invention pays the utmost attention to following mode and realizes: it comprises the side plate 33 of captive joint permanent seat 38, described side 33 is positioned at the inboard of driving lever 31, be provided with spring 34 between side plate 33 and the driving lever 31, driving lever 31 is provided with position-limited lever 21, when control stalk did not also contact driving lever 31, position-limited lever 21 was at the predetermincd tension effect lower support side plate 33 of extension spring 34, and made device keep stable.
The present invention can also be on the basis of said structure; mounting electrical fender guard on action protecting device 30 therein; described electric protective device comprises the electric switch 37 that is arranged on side plate 33 outsides; and with the electric switch pressing plate 32 on the driving lever 31 of being fixed on of described electric switch 37 interoperations; electric switch 37 is used for controlling the elevator electric control loop; in when gate 10 is in the travel position of setting; cut off the electric loop of elevator; prevent because the repair and maintenance personnel operation is improper; or short circuit safety return circuit; or during the accidental switch of elevator operation contact, elevator meets accident and slides.In addition, the present invention can also install a warning device, as shown in Figure 5, warning device comprises the alarm switch that is arranged on one of them follower lever outside, and this switch is with contact, and is arranged on power supply, buzzer phone and corresponding loop near the permanent seat, when car produces movement tendency, follower lever will drive described alarm switch motion and touch bearing device, thereby the pressure head trigger alarm switch contact of alarm switch is connected buzzer phone, produces alerting signal.Remind by warning device, personnel will stop at immediately under the error state and use elevator.
The above only is preferred embodiments of the present invention, the present invention is not limited to above-mentioned embodiment, in implementation process, may there be local small structural modification, if to various start or modification does not break away from the spirit and scope of the present invention of the present invention, and belong within claim of the present invention and the equivalent technologies scope, then the present invention also is intended to comprise these changes and modification.
Claims (9)
1. protection device for abnormal movement during lift car leveling opening; it is characterized in that; it comprises the control setup (11) that is arranged at respectively gate (10) both sides and plays motion with one; be arranged at respectively car (13) both sides and play the action protecting device (30) of motion and be arranged at the bearing device (50) that each level position and respective action fender guard cooperatively interact in the well enclosure with one; each described action protecting device (30) is reciprocating under the driving of control setup (11); at gate (10) when opening fully; each described control setup (11) drive actions fender guard (30) snaps in bearing device (50); when elevator produces operation trend; stoped by support (50); stop car (13); keep the balance of whole car (13) by bearing device (50) and action protecting device (30); each described action protecting device (30) comprises the permanent seat (38) of captive joint car; described permanent seat (38) is rotatably connected to vertical bull stick (36); be fixedly connected with horizontal driving lever (31) and follower lever (35) on the described bull stick (36); described follower lever (35) is positioned at the outside of described driving lever (31), is provided with reset attachment between described driving lever (31) and the permanent seat (38).
2. protection device for abnormal movement during lift car leveling opening according to claim 1 is characterized in that, each described control setup (11) is a Horizontal control lever.
3. protection device for abnormal movement during lift car leveling opening according to claim 1; it is characterized in that; each described reset attachment comprises the side plate (33) of captive joint permanent seat (38); described side plate (33) is positioned at the inboard of driving lever (31); be provided with spring (34) between side plate (33) and the driving lever (31); driving lever (31) is provided with position-limited lever (21), and described position-limited lever (21) can locate and be supported on the side plate (33).
4. protection device for abnormal movement during lift car leveling opening according to claim 3 is characterized in that, the driving lever (31) on each described bull stick (36) arranges at an angle with follower lever (35).
5. according to claim 3 or 4 described protection device for abnormal movement during lift car leveling openings; it is characterized in that; each described bearing device (50) is the fit supporting parts of the square that is fixed on each level position in the well enclosure; described supporting parts inboard has the draw-in groove (51) that can block follower lever, and described draw-in groove (51) inwall is provided with rubber gasket.
6. protection device for abnormal movement during lift car leveling opening according to claim 5; it is characterized in that; one of described action protecting device (30) is provided with electric protective device; described electric protective device comprises the electric switch (37) of the elevator electric control loop that is arranged on side plate (33) outside, and with the electric switch pressing plate (32) on the driving lever (31) of being fixed on of described electric switch (37) interoperation.
7. protection device for abnormal movement during lift car leveling opening according to claim 6; it is characterized in that; described protection device for abnormal movement during lift car leveling opening also is provided with warning device; described warning device comprises the alarm switch (39) that is arranged on one of them follower lever outside; alarm switch (39) is provided with contact (42); and be arranged near the permanent seat (38) and power supply and the buzzer phone (40) in its formation loop; when car (13) produces movement tendency; follower lever (35) will drive described alarm switch (39) and move and touch bearing device (50); thereby the pressure head trigger alarm switch contact (42) of alarm switch (39) is connected buzzer phone (40), produces alerting signal.
8. protection device for abnormal movement during lift car leveling opening according to claim 7; it is characterized in that; the far-end of each described control stalk is formed with arc forked type cutting ferrule (111); described cutting ferrule (111) can entangle the driving lever (31) of correspondence position, and cutting ferrule (111) can slide along driving lever (31) outer wall.
9. protection device for abnormal movement during lift car leveling opening according to claim 8; it is characterized in that; be provided with strut member (20) between described action protecting device (30) and the car (13); described strut member (20) is U-shaped structure; its both sides head is installed with respectively action protecting device (30), and centre portion is connected with car (13) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010531053 CN101992984B (en) | 2010-11-02 | 2010-11-02 | Protection device for abnormal movement during lift car leveling opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010531053 CN101992984B (en) | 2010-11-02 | 2010-11-02 | Protection device for abnormal movement during lift car leveling opening |
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| Publication Number | Publication Date |
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| CN101992984A CN101992984A (en) | 2011-03-30 |
| CN101992984B true CN101992984B (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010531053 Active CN101992984B (en) | 2010-11-02 | 2010-11-02 | Protection device for abnormal movement during lift car leveling opening |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395667B (en) * | 2013-08-21 | 2015-07-29 | 上海微频莱机电科技有限公司 | Safety protection mechanism for accidental |
| CN104310150A (en) * | 2014-10-12 | 2015-01-28 | 陈涛 | Safe floor cross rod for lifting of elevator |
| CN105668384B (en) * | 2016-04-05 | 2018-04-10 | 日立电梯（中国）有限公司 | The method of lift car and anti-car accidental movement |
| CN108996356B (en) * | 2018-07-21 | 2020-10-23 | 广东博智林机器人有限公司 | High altitude lift broken chain safety arrangement for building |
| CN113353752A (en) * | 2021-05-19 | 2021-09-07 | 重庆市华创电梯部件有限公司 | Device for preventing accidental movement of elevator car |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362567A (en) * | 2007-08-10 | 2009-02-11 | 东芝电梯株式会社 | Elevator car fixation device |
| CN101407297A (en) * | 2007-10-12 | 2009-04-15 | 东芝电梯株式会社 | Elevator cage keeping system |
| CN101481059A (en) * | 2009-02-12 | 2009-07-15 | 日立电梯（中国）有限公司 | Safety elevator with function for preventing abnormally opened door and safety control method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010120745A (en) * | 2008-11-20 | 2010-06-03 | Nippon Otis Elevator Co | Apparatus for preventing elevator from moving with door opened |
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- 2010-11-02 CN CN 201010531053 patent/CN101992984B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362567A (en) * | 2007-08-10 | 2009-02-11 | 东芝电梯株式会社 | Elevator car fixation device |
| CN101407297A (en) * | 2007-10-12 | 2009-04-15 | 东芝电梯株式会社 | Elevator cage keeping system |
| CN101481059A (en) * | 2009-02-12 | 2009-07-15 | 日立电梯（中国）有限公司 | Safety elevator with function for preventing abnormally opened door and safety control method thereof |
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| CN101992984A (en) | 2011-03-30 |
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