CN105293245B - Elevator of winding drum type anti-fall device - Google Patents
Elevator of winding drum type anti-fall device Download PDFInfo
- Publication number
- CN105293245B CN105293245B CN201510911418.2A CN201510911418A CN105293245B CN 105293245 B CN105293245 B CN 105293245B CN 201510911418 A CN201510911418 A CN 201510911418A CN 105293245 B CN105293245 B CN 105293245B
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- Prior art keywords
- elevator
- fall
- winding drum
- drum type
- rope sheave
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention discloses a kind of elevator of winding drum type anti-fall device, including the control device of elevator car roof and anti-fall mechanism are arranged on, the control device includes weightlessness switch and executing agency, the weightlessness switch is controlled by executing agency to anti-fall mechanism；The present invention uses mechanical detection control device mode, using the weightlessness switch installed on the elevator car, hypervelocity according to elevator declines the state of weightlessness for producing carries out the folding of weightlessness switch, and realize the braking of anti-fall device, anti-fall device detection speed is accurate, detection failure reliability, the service behaviour of anti-fall device is remarkably improved, can automatically be performed and be closed, the anti-fall dependable performance of anti-fall high degree of automation, elevator.
Description
Technical field
The invention belongs to the security technology area in terms of the jacking equipments such as elevator and lift, and in particular to a kind of roll type
Elevator anti-fall device.
Background technology
With continuing to develop for urban construction, skyscraper is on the increase, and elevator has wide in national economy and life
General application.Elevator is inseparable with daily life as the vehicles of vertical operation in skyscraper.But
Operationally, used during elevator falling phenomenon occasionally has generation to elevator, serious to threaten the people's lives and property safety, causes irremediable damage
Lose.
The anti-fall device that current elevator is used is made up of set of system such as limiter of speed, wirerope, tensioning apparatus, balancing weights,
Wirerope is moved up and down around the limiter of speed runner installed in building top layer computer room with elevator, and anti-fall work(is realized by tensioning apparatus
Can, but, the wirerope of existing speed limit type elevator anti-fall device is oversize, the how high wirerope in building will have how long, this just makes this
Plant device and there are three shortcomings, one is to be highly susceptible to other objects in Lift out of order tenesmus duration wirerope long to disturb out
Existing failure misoperation；Two is that wirerope is more long because wirerope has larger elasticity, range of extension under tension during its action
Also it is more long, so as to cause braking time to postpone, the security of elevator is reduced, under the elevator tenesmus crisis situations remembered with the second,
This is the shortcoming that can not be ignored；Three be wirerope length it is directly related with elevator cost, wirerope long necessarily causes high cost.
The content of the invention
For above-mentioned the deficiencies in the prior art, the present invention is intended to provide a kind of reaction is fast, retardation efficiency is high, elevator operation peace
Full property elevator of winding drum type anti-fall device high.
In order to solve the above technical problems, the present invention is using such technical scheme：Elevator of winding drum type anti-fall device, including set
The control device in elevator car roof and anti-fall mechanism are put, the control device includes weightlessness switch and executing agency, described
Weightlessness switch is controlled by executing agency to anti-fall mechanism；The weightlessness switch include pedestal, compression spring, weighted spherical ball and
Switch enclosure, the pedestal for being provided with switch enclosure is fixed on elevator car roof, and weighted spherical ball is arranged in switch enclosure, the pressure
Spring one end is fixed on pedestal, and the other end is contacted with the weighted spherical ball being arranged in switch enclosure；The executing agency include bearing,
Rotation stop bearing, frizzen and dog link, the rotation stop bearing are fixedly installed on bearing, and frizzen and dog link are symmetrical or not right
Title is arranged on rotation stop bearing；The anti-fall mechanism include safety tongs, leading block, rope sheave, clockwork spring, arresting lever, drag-line,
Fixed seat and rotating shaft, the safety tongs are arranged between lift car and cage guide；The drag-line is sequentially connected rope sheave, is oriented to
Pulley and safety tongs；Folding and unfolding is carried out to drag-line by control device control rope sheave, safety tongs execution and stopping is realized anti-air crash
The anti-drop function of structure.
Elevator of winding drum type anti-fall device of the invention, when elevator normally runs, the weighted spherical ball of the weightlessness switch is pressure
Power spring is pressed in switch enclosure, rotation stop bearing transfixion, frizzen be in compression spring top, arresting lever by rotation and
Rotating shaft drives rope sheave that clockwork spring is tightened up, and arresting lever transfixion is pushed down by dog link, makes clockwork spring keep bending to tighten up
Stress, safety tongs now and drag-line be in relaxation state in the presence of clockwork spring, and safety tongs unclamps and elevator
The contact of guide rail；When elevator is improper to be run to bottom, lift car can be in state of weightlessness, and the counterweight in weightlessness switch
Club loses some or all of weight under state of weightlessness, and the spring that it is pushed down will eject switch enclosure, and high force blow is fixed
Frizzen on rotation stop bearing, makes rotation stop bearing rotary, and the dog link being fixed on rotation stop bearing departs from arresting lever, unclamps
The arresting lever being connected with execution bar, now the stress tightened up of clockwork spring is out of hand and stretching, extension is flicked, and is provided with rope
Quick rotation under the active force for flicking generation is then stretched in the rotating shaft of wheel in clockwork spring, so that rope sheave is tightened up and safe clipper joint
Drag-line, by drag-line start safety tongs, safety tongs therefore gripping elevator guide rails, make elevator stop tenesmus, so as to ensure elevator
The safety of passenger.
Used as another embodiment of the invention, sensing of the control device by being arranged on elevator car roof is automatically controlled
Formula mechanism substitutes, and the sensing electric-controlled type mechanism includes sensor, control element and is provided with the rotation stop motor of relay, sensing
Device is moved up and down with the up and down motion of lift car along cage guide, and brake bar and stop are set in the rotating shaft of rotation stop motor
Bar is contacted, control element connection sensor and relay；The sensor is that velocity sensor, acceleration transducer and pressure are passed
One kind of sensor；In unit interval, when the sensor sensing to elevator car speed exceedes the peak of setting, control element
Control signal is sent, control signal commander's relay work, relay will connect the power supply of rotation stop motor, start rotation stop motor
Rotation, makes the dog link being fixed thereon unclamp the arresting lever being fixed in rotating shaft, and rope sheave rotates under the driving of clockwork spring,
Cable pull safety tongs is driven, safety tongs is blocked cage guide, so as to play a part of to prevent elevator tenesmus.
Beneficial effect：Elevator of winding drum type anti-fall device of the invention, simple structure is easy for installation, using mechanical detection control
Device mode processed, using the weightlessness switch installed on the elevator car, the hypervelocity according to elevator declines the state of weightlessness for producing and enters
The folding of row weightlessness switch, and the braking of anti-fall device is realized, anti-fall device detection speed is accurate, detection failure reliability, can show
The service behaviour for improving anti-fall device is write, can automatically be performed and be closed, the anti-fall dependable performance of anti-fall high degree of automation, elevator,
Reduce cost.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the structural representation of control device in the present invention；
Fig. 3 is the left view of control device in the present invention；
Fig. 4 is the structural representation of the embodiment of the present invention two；
Label in figure：1 ~ weightlessness switch, 1a ~ pedestal, 1b ~ compression spring, 1c ~ weighted spherical ball, 1d ~ switch enclosure, 2 ~ perform machine
Structure, 2a ~ bearing, 2b ~ rotation stop bearing, 2c ~ frizzen, 2d ~ dog link, 3 ~ anti-fall mechanism, 3a ~ safety tongs（3a）, 3b ~ guiding cunning
Wheel, 3c ~ rope sheave, 3d ~ clockwork spring, 3e ~ arresting lever, 3f ~ drag-line, 3g ~ fixed seat, 3h ~ rotating shaft, 4 ~ sensor, 5 ~ relay,
6 ~ rotation stop motor.
Specific embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings, but the present invention must not be any limitation as by any way,
Based on present invention teach that any change or improvement made, belong to protection scope of the present invention.
Embodiment one
Elevator of winding drum type anti-fall device shown in 1 with reference to the accompanying drawings, including be arranged on elevator car roof control device and
Anti-fall mechanism 3, the control device includes weightlessness switch 1 and executing agency 2, and the weightlessness switch 1 is prevented for 2 pairs by executing agency
Air crash structure 3 is controlled.
With reference to the accompanying drawings 2, the weightlessness switch 1 shown in accompanying drawing 3 includes pedestal 1a, compression spring 1b, weighted spherical ball 1c and opens
Close box 1d, the pedestal 1a for being provided with switch enclosure 1d and be fixed on elevator car roof, weighted spherical ball 1c is arranged in switch enclosure 1d,
Described compression spring 1b one end is fixed on pedestal 1a, and the other end is contacted with the weighted spherical ball 1c being arranged in switch enclosure 1d.
With reference to the accompanying drawings 2, the executing agency 2 shown in accompanying drawing 3 includes bearing 2a, rotation stop bearing 2b, frizzen 2c and only
Bull stick 2d, the rotation stop bearing 2b are fixedly installed on bearing 2a, and frizzen 2c and dog link 2d are symmetrically or non-symmetrically arranged on
On rotation stop bearing 2b.
With reference to the accompanying drawings 2, the described anti-fall mechanism 3 shown in accompanying drawing 3 includes safety tongs 3a, leading block 3b, rope sheave 3c, clockwork spring
Spring 3d, arresting lever 3e, drag-line 3f, fixed seat 3g and rotating shaft 3h, the safety tongs 3a are arranged on lift car and cage guide
Between；The drag-line 3f is sequentially connected rope sheave 3c, leading block 3b and safety tongs 3a；Rope sheave 3c is controlled to drawing by control device
Rope 3f carries out folding and unfolding, safety tongs 3a is firmly grasped or decontrol guide rail.
With reference to the accompanying drawings 1, the rope sheave 3c shown in accompanying drawing 2, accompanying drawing 3 is arranged on fixed seat 3g by rotating shaft 3h, rope sheave
3c is driven by clockwork spring 3d；The clockwork spring 3d is arranged on the both sides of rope sheave 3c, and one end of clockwork spring 3d is fixed on
On rope sheave 3c, the other end is fixed on fixed seat 3g, makes clockwork spring 3d drive rope sheave 3c to rotate.
The arresting lever 3e is arranged on rotating shaft 3h, and the height of the arresting lever 3e is less than dog link 2d highly, and with
Dog link 2d is contacted, and is pushed down by dog link 2d.
The frizzen 2c and dog link 2d can be rotated with rotation stop bearing 2b.
The leading block 3b shown in 1 has two with reference to the accompanying drawings, is symmetrically or non-symmetrically arranged on lift car compartment top and side
Joint portion；The safety tongs 3a at least configures 2, and leading block 3b prevents drag-line 3f from producing friction with lift car, causes
Drag-line 3f and lift car are damaged, and are play the guiding role.
With reference to the accompanying drawings 2, the frizzen 2c shown in accompanying drawing 3 is located at the side of switch enclosure 1d and compression spring 1b, pressure
The top of spring 1b；The compression spring 1b is arranged at weighted spherical ball 1c lower sections, and is pushed down by weighted spherical ball 1c, and the compression spring
The length of 1b is 1.5 ~ 3 times of the height of switch enclosure 1d to pedestal 1a bottoms；What the switch enclosure 1d was contacted with compression spring 1b
Simultaneously it is provided with the turnover groove of compression spring 1b.
Embodiment two
According to Fig. 4, used as another embodiment of the invention, the present embodiment uses institute on the basis of embodiment one
State control device to be substituted by the sensing electric-controlled type mechanism for being arranged on elevator car roof, the sensing electric-controlled type mechanism includes sensing
Device 4, control element and the rotation stop motor 6 of relay 5 is provided with, sensor 4 is with the up and down motion of lift car along elevator
Guide rail moves up and down, and brake bar 7 is set in the rotating shaft of rotation stop motor 6 and is contacted with arresting lever 3e, the control element connection He of sensor 4
Relay 5；The sensor 4 is one kind of velocity sensor, acceleration transducer and pressure sensor；In unit interval, institute
State sensor 4 sense elevator car speed exceed setting peak when, control element sends control signal, and control signal refers to
Wave relay 5 to work, relay 5 will connect the power supply of rotation stop motor 6, start rotation stop motor 6 and rotate, make what is be fixed thereon
Dog link 2d unclamps the arresting lever 3e being fixed on rotating shaft 3h, and rope sheave 3c rotates under the driving of clockwork spring 3d, drives drag-line
3f tenses safety tongs 3a, safety tongs 3a is blocked cage guide, so as to play a part of to prevent elevator tenesmus.
Operation principle of the invention and mode：
When elevator normally runs, the weighted spherical ball 1c of the weightlessness switch 1 is pressed in compression spring 1b in switch enclosure 1d, only
2b transfixions are held in rotating shaft, and frizzen 2c is in the side of compression spring 1b, perform bar 3f and prestressed spring 3c is pulled open, by only
Bull stick 2d pushes down arresting lever 3e transfixions, and frizzen is in the top of compression spring, and arresting lever 3e is by rotating rope sheave 3c handles
The clockwork spring 3d for being arranged on rope sheave 3c both sides is tightened up, and arresting lever transfixion is pushed down by dog link 2d, protects clockwork spring 3d
The stress that bending is tightened up is held, safety tongs 3a and drag-line 3f now are in relaxation state in the presence of clockwork spring 3d,
Safety tongs 3a unclamps the contact with cage guide, elevator is normally run；When elevator is improper to be run to bottom, lift car
State of weightlessness can be in, and the weighted spherical ball 1c in weightlessness switch 1 can lose some or all of weight under state of weightlessness, counterweight
Ball 1c will be pushed up the pressure lost to one side to compression spring 1b by compression spring 1b, compression spring 1b ejection switch enclosure 1d and
High force blow is fixed on the frizzen 2c on rotation stop bearing 2b, promotes rotation stop bearing 2b to rotate, and makes to be fixed on rotation stop bearing 2b
Dog link 2d and arresting lever 3e depart from, the stress tightened up for being now arranged on the clockwork spring 3d of rope sheave 3c both sides loses
Control and stretch and flick, the then quick rotations under clockwork spring 3d active forces of the rope sheave 3c on rotating shaft 3h are arranged on, so as to tighten up
The drag-line 3f being connected with safety tongs 3a, safety tongs 3a, safety tongs 3a therefore gripping elevator guide rails are started by drag-line 3f, make elevator
Stop tenesmus, so as to ensure the safety of elevator passenger.
The present invention can replace existing speed limit type elevator anti-fall device, it is also possible to anti-with existing speed limit type elevator
Fall device is used in combination, and as the redundant safety device of elevator, increases the security of elevator.
Claims (9)
1. elevator of winding drum type anti-fall device, it is characterised in that：Including the control device for being arranged on elevator car roof and anti-air crash
Structure（3）, the control device include weightlessness switch（1）And executing agency（2）, the weightlessness switch（1）By executing agency（2）
To anti-fall mechanism（3）It is controlled；The executing agency（2）Including bearing（2a）, rotation stop bearing（2b）, frizzen（2c）With only
Bull stick（2d）, the rotation stop bearing（2b）It is fixedly installed on bearing（2a）On, frizzen（2c）And dog link（2d）Symmetrically or not
It is symmetricly set on rotation stop bearing（2b）On.
2. elevator of winding drum type anti-fall device according to claim 1, it is characterised in that：The weightlessness switch（1）Including base
Seat（1a）, compression spring（1b）, weighted spherical ball（1c）And switch enclosure（1d）, it is described that switch enclosure is installed（1d）Pedestal（1a）It is fixed
In elevator car roof, weighted spherical ball（1c）It is arranged on switch enclosure（1d）It is interior, the compression spring（1b）One end is fixed on pedestal
（1a）On, the other end be arranged on switch enclosure（1d）Interior weighted spherical ball（1c）Contact.
3. elevator of winding drum type anti-fall device according to claim 1, it is characterised in that：The anti-fall mechanism（3）Including peace
Full pincers（3a）, leading block（3b）, rope sheave（3c）, clockwork spring（3d）, arresting lever（3e）, drag-line（3f）, fixed seat（3g）With
Rotating shaft（3h）, the safety tongs（3a）It is arranged between lift car and cage guide；The drag-line（3f）It is sequentially connected rope sheave
（3c）, leading block（3b）And safety tongs（3a）；Rope sheave is controlled by control device（3c）To drag-line（3f）Folding and unfolding is carried out, makes peace
Full pincers（3a）Promptly or decontrol guide rail.
4. elevator of winding drum type anti-fall device according to claim 3, it is characterised in that：The rope sheave（3c）By rotating shaft
（3h）It is arranged on fixed seat（3g）On, rope sheave（3c）By clockwork spring（3d）Drive；The clockwork spring（3d）It is arranged on rope sheave
（3c）Both sides, and clockwork spring（3d）One end be fixed on rope sheave（3c）On, the other end is fixed on fixed seat（3g）On, make hair
Bar spring（3d）Drive rope sheave（3c）Rotate.
5. elevator of winding drum type anti-fall device according to claim 3, it is characterised in that：The arresting lever（3e）It is arranged on and turns
Axle（3h）On, the arresting lever（3e）Height be less than dog link（2d）Highly, and the arresting lever（3e）With dog link（2d）
Contact, and by dog link（2d）Push down.
6. elevator of winding drum type anti-fall device according to claim 1, it is characterised in that：The frizzen（2c）And dog link
（2d）Can be in rotation stop bearing（2b）Upper rotation.
7. elevator of winding drum type anti-fall device according to claim 3, it is characterised in that：Leading block（3b）There are two, it is right
Claim or the asymmetric joint portion for being arranged on lift car compartment top and side；The safety tongs（3a）At least configure 2.
8. elevator of winding drum type anti-fall device according to claim 1, it is characterised in that：The frizzen（2c）Positioned at switch
Box（1d）And compression spring（1b）Side, compression spring（1b）Top；The compression spring（1b）It is arranged at weighted spherical ball
（1c）Lower section, and by weighted spherical ball（1c）Push down, and the compression spring（1b）Length be switch enclosure（1d）To pedestal（1a）Bottom
1.5 ~ 3 times of the height in portion；The switch enclosure（1d）With compression spring（1b）The one side of contact is provided with compression spring（1b）'s
Turnover groove.
9. elevator of winding drum type anti-fall device according to claim 1, it is characterised in that：The control device is used and is arranged on
The sensing electric-controlled type mechanism of elevator car roof substitutes, and the sensing electric-controlled type mechanism includes sensor（4）, control element and set
It is equipped with relay（5）Rotation stop motor（6）, sensor（4）Transported up and down along cage guide with the up and down motion of lift car
It is dynamic, rotation stop motor（6）Rotating shaft on brake bar is set（7）With arresting lever（3e）Contact, control element connection sensor（4）With after
Electrical equipment（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510911418.2A CN105293245B (en) | 2015-12-11 | 2015-12-11 | Elevator of winding drum type anti-fall device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510911418.2A CN105293245B (en) | 2015-12-11 | 2015-12-11 | Elevator of winding drum type anti-fall device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105293245A CN105293245A (en) | 2016-02-03 |
| CN105293245B true CN105293245B (en) | 2017-07-07 |
Family
ID=55191205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510911418.2A Expired - Fee Related CN105293245B (en) | 2015-12-11 | 2015-12-11 | Elevator of winding drum type anti-fall device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105293245B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806020A (en) * | 2017-11-18 | 2018-03-16 | 曾小真 | A kind of overhead job platform of bridge construction |
| WO2022172406A1 (en) * | 2021-02-12 | 2022-08-18 | 三菱電機株式会社 | Elevator device |
| CN113636489B (en) * | 2021-08-09 | 2023-03-10 | 中国建筑第七工程局有限公司 | Prefabricated floor self-adaptation regulation transportation platform |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2539270Y (en) * | 2002-04-26 | 2003-03-05 | 莫熙秋 | Weightlessness switch |
| JP2004345803A (en) * | 2003-05-22 | 2004-12-09 | Toshiba Elevator Co Ltd | Emergency stop device of elevator, emergency stop return device and emergency stop return method |
| CN2767399Y (en) * | 2005-01-19 | 2006-03-29 | 潘绍江 | Hydraulic elevator brake device |
| CN200964315Y (en) * | 2006-05-10 | 2007-10-24 | 上海永大电梯设备有限公司 | Rotary safety clamp connecting bar hoisting mechanism |
| CN201411299Y (en) * | 2009-05-22 | 2010-02-24 | 赵士山 | Forced rope-breaking and speed-limiting safety anti-fall catch for construction hoist |
| CN202089658U (en) * | 2011-04-08 | 2011-12-28 | 赵士山 | Emergency manual anti-falling device |
| CN203767791U (en) * | 2014-03-09 | 2014-08-13 | 湖南奥迪斯电梯有限公司 | Elevator emergency braking apparatus |
-
2015
- 2015-12-11 CN CN201510911418.2A patent/CN105293245B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN105293245A (en) | 2016-02-03 |
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Granted publication date: 20170707 Termination date: 20211211 |