CN108792876A - Windage induction type elevator safety brake instrument - Google Patents

Windage induction type elevator safety brake instrument Download PDF

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Publication number
CN108792876A
CN108792876A CN201810741258.5A CN201810741258A CN108792876A CN 108792876 A CN108792876 A CN 108792876A CN 201810741258 A CN201810741258 A CN 201810741258A CN 108792876 A CN108792876 A CN 108792876A
Authority
CN
China
Prior art keywords
guide groove
shell
fan housing
braking
guide rail
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201810741258.5A
Other languages
Chinese (zh)
Inventor
朱文祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Luan Yongzhen Jiangdao Electromechanical Technology Co Ltd
Original Assignee
Luan Yongzhen Jiangdao Electromechanical Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Luan Yongzhen Jiangdao Electromechanical Technology Co Ltd filed Critical Luan Yongzhen Jiangdao Electromechanical Technology Co Ltd
Priority to CN201710064740.5A priority Critical patent/CN106698140B/en
Priority to CN201810741258.5A priority patent/CN108792876A/en
Publication of CN108792876A publication Critical patent/CN108792876A/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/06Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B66B5/22Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges

Abstract

The invention discloses windage induction type elevator safety brake instruments, it includes the shell being fixedly connected with lift car, the guide rail guide groove to match with guide rail is provided on shell, shell is also associated with windage induction mechanism, the interlinked mechanism to match with windage induction mechanism is installed, shell also shiding matching, which has, to be connect with interlinked mechanism and for the brake silpper of braking on shell;It is provided on shell a pair of perpendicular to guide rail guide groove and the braking guide groove that is connected with guide rail guide groove, braking guide groove is symmetrically arranged in the both ends of guide rail guide groove and brakes guide groove to match with brake silpper, and braking guide groove is used to be oriented to brake silpper and is slided along perpendicular to the direction of guide rail guide groove;Wherein, windage induction type elevator safety brake instrument further includes the anti-detachment mechanism for limiting brake silpper and being detached from from braking guide post.

Description

Windage induction type elevator safety brake instrument
The present invention be the applying date be on February 05th, 2017, application No. is:2017100647405, entitled " elevator The divisional application of the patent of invention of catching device ".
Technical field
The present invention relates to a kind of windage induction type elevator safety brake instruments.
Background technology
Currently, well known windage induction type elevator safety brake instrument mainly uses two ways to trigger, first, using losing The mode of weight is incuded, and when elevator rapidly glides, mass is in state of weightlessness, to trigger;Another kind, using electronics Sensing apparatus is incuded, such as rate induction.
The present invention provides a kind of windage induction type elevator safety brake instruments triggered using windage, are different from existing Catching device trigger theory.
Invention content
The object of the present invention is to provide the windage induction type catching devices different from existing catching device trigger theory, work as elevator emergency Speed generates larger windage and the work using windage trigger mechanism when gliding, windage induction type catching device can solve to solve weightless The unidirectional sex chromosome mosaicism of induction, and the stability problem of electronic induction equipment can be solved.
To realize the above-mentioned technical purpose, the technical solution adopted in the present invention is as follows.
Windage induction type elevator safety brake instrument comprising the shell being fixedly connected with lift car is arranged on shell There are the guide rail guide groove to match with guide rail, shell to be also associated with windage induction mechanism, is equipped on shell and windage induction mechanism The interlinked mechanism to match, shell also shiding matching, which has, to be connect with interlinked mechanism and for the brake silpper of braking;
Windage induction mechanism comprising fan housing, the driving lever being connect with fan housing wall portion, fan housing are the bowl body of opening straight down, wind The central axis cylindrical central sleeve parallel with guide rail guide direction, the wall that cylindrical central sleeve passes through connecting plate and fan housing are additionally provided in cover Portion connects, and interval is formed with the air duct being connected with fan housing inner cavity, interior of cylindrical central sleeve between cylindrical central sleeve and the wall portion of fan housing It is switched equipped with air duct, air duct switch includes being socketed on the guide shaft arranged in cylindrical central sleeve and with cylindrical central sleeve coaxial line, guide shaft One end is equipped with interior aerofoil in fan housing, and restraining position ring block is installed on the top of guide shaft;The outside of guide shaft is also socketed between wind Resetting spring between cover and interior aerofoil, the interior cavity direction that resetting spring pushes interior aerofoil towards fan housing move;
The other end of driving lever is connected to interlinked mechanism, and interlinked mechanism includes turntable, and driving lever is connect with turntable and the rotation of driving lever Can drive shaft synchronous rotation, turntable is installed on shell and can be around own axis;Turntable is cut with scissors with a pair of links respectively It connecing, the line of the articulated position of a pair of links and turntable passes through the central axis of turntable and is symmetrically arranged in the both sides of turntable, The suspension end of connecting rod is articulated with brake silpper;
It is provided on shell a pair of perpendicular to guide rail guide groove and the braking guide groove that is connected with guide rail guide groove, braking guide groove are symmetrical It is arranged in the both ends of guide rail guide groove and brakes guide groove and match with brake silpper, braking guide groove is for being oriented to brake silpper along vertical Directly slided in the direction of guide rail guide groove;
Wherein, windage induction type elevator safety brake instrument further includes the anticreep for limiting brake silpper and being detached from from braking guide post It disembarks structure.
Above-mentioned anti-detachment mechanism is to be set to the limited block at braking guide post suspension end.
Interior aerofoil is that the upper wall portions of the bullet and interior aerofoil that Open Side Down and the inner wall part shape of fan housing are adapted.
Relative to existing conventional catching device, catching device provided by the invention is triggered by the way of windage induction, profit It is braked with the frictional force of brake silpper and guide rail, substitutes the destructive locking of existing conventional wedge block, the present invention provides Catching device be reciprocally used for multiple times, and the present invention is also devised with irreversible control, can solve repair people remove, dimension It is dangerous that car downslide is encountered during repairing.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of windage induction mechanism.
Fig. 3 is the structural schematic diagram of windage induction mechanism.
Fig. 4 is the structural schematic diagram of windage induction mechanism.
Fig. 5 is the structural schematic diagram of air duct switch.
Fig. 6 is the structural schematic diagram that shell coordinates with interlinked mechanism, brake silpper.
Fig. 7 is the structural schematic diagram of shell and interlinked mechanism cooperation.
Fig. 8 is the structural schematic diagram of turntable.
Fig. 9 is the structural schematic diagram of interlinked mechanism and brake silpper cooperation.
Figure 10 is the structural schematic diagram of shell.
Figure 11 is the structural schematic diagram of shell.
Figure 12 is the structural schematic diagram of irreversible control.
It is denoted as in figure:
100, guide rail;
200, shell;210, guide rail guide groove;220, one-way locking guide groove;230, round platform;240, guide groove is braked;250, braking is oriented to Column;260, limited block;
300, windage induction mechanism;310, fan housing;312, air duct;314, cylindrical central sleeve;316, connecting plate;320, driving lever;330, Air duct switchs;332, guide shaft;334, resetting spring;336, interior aerofoil;
400, interlinked mechanism;410, turntable;412, shaft;414, mounting groove;420, connecting rod;
500, brake silpper;
600, irreversible control;610, support plate;620, spring is jacked;630, latch.
Specific implementation mode
The catching device of the present invention is incuded using windage principle, and moving object, which moves downward, either to be moved upwards or incline Tiltedly movement adapts to, and solves the unidirectional sex chromosome mosaicism that existing weightless sense is answered, and since the mechanical structure that the present invention uses is more steady It is fixed, it is more reliable relative to electronic induction equipment.
As a shown in Figure 6, windage induction type elevator safety brake instrument comprising the shell being fixedly connected with lift car 200, the guide rail guide groove 210 to match with guide rail 100 is provided on shell 200, and shell 200 is also associated with windage induction mechanism 300, the interlinked mechanism 400 to match with windage induction mechanism 300 is installed on shell 200, shell 200 go back shiding matching have with Interlinked mechanism 400 connects and for the brake silpper 500 of braking.
As in Figure 2-4, windage induction mechanism 300 comprising fan housing 310, the driving lever 320 being connect with 310 wall portion of fan housing, Fan housing 310 is opening towards anti-fall direction or the bowl body of the direction of motion, and central axis and moving object are additionally provided in fan housing 310 The parallel cylindrical central sleeve 314 of the body direction of motion, cylindrical central sleeve 314 are connect by connecting plate 316 with the wall portion of fan housing 310, center Interval is formed with the air duct 312 being connected with 310 inner cavity of fan housing, cylindrical central sleeve 314 between sleeve 314 and the wall portion of fan housing 310 Inside be matched with air duct switch 330, air duct switch 330 include be socketed in cylindrical central sleeve and with 314 coaxial line cloth of cylindrical central sleeve The guide shaft 332 set, guide shaft 332 are located at one end in fan housing 310 and are equipped with interior aerofoil 336, and the top of guide shaft 332 is equipped with limit Ring, the spacing ring are preferably clamp spring;The outside of guide shaft 332 is also socketed with the reset bullet between fan housing 310 and interior aerofoil 336 Spring 334, the interior cavity direction that resetting spring 334 pushes interior aerofoil 336 towards fan housing 310 move.Existing windage induction type elevator The anti-fall direction of safety arrestment instrument be straight down, therefore, the opening direction of fan housing 310 should be downward;When object is in level side To when moving or moving upwards, for the fast braking for realizing in an overspeed situation, the opening direction of fan housing 310 should be towards object The direction of motion of body;It can only unilateral system it will be apparent that existing catching device can be solved using windage induction mechanism provided by the invention Dynamic problem.
Under original state, resetting spring 334 pushes interior fan housing 336 to be detached from fan housing inner wall, and air duct 312 and fan housing Inner cavity is connected;When fan housing 310 is slided with stabilized speed or safe speed, windage is less than the elastic force of resetting spring 334, collection It is discharged from air duct 312 in the air in fan housing 310;When fan housing 310 is with high-speed motion or is slided beyond safe speed, windage More than the elastic force of resetting spring 334, at this time in aerofoil 336 be bonded with the inner wall part of fan housing 310, air duct 312 and fan housing inner cavity it Between channel blocked by interior aerofoil, combining in air in fan housing cannot exclude out of air duct 312, under the action of windage, fan housing hair Raw deflection action.
For the stroke of aerofoil in reduction by 336, expands the influence of windage and improve induction precision, it is as in Figure 2-4, above-mentioned Resetting spring 334 is socketed on the outside of guide shaft 332 and is socketed on the inside of cylindrical central sleeve 314, and one end of resetting spring 334 is supported To the interior step of cylindrical central sleeve, the other end is against interior aerofoil 336;The shrinkage of resetting spring 334 is reduced, interior aerofoil is shortened Spacing distance between 336 and fan housing 310.
To improve the influence of windage, as in Figure 2-4, interior aerofoil 336 is the bullet that Open Side Down and interior aerofoil 336 Upper wall portions and fan housing inner wall part shape be adapted;More perfectly, the central shaft of the axis of interior aerofoil 336 and fan housing 310 Line overlaps, and the axis of interior aerofoil 336 is also overlapped with the axis of cylindrical central sleeve.
As shown in Fig. 1,6,7, the other end of driving lever 320 is connected to interlinked mechanism 400, and interlinked mechanism 400 includes turntable 410, it is installed on the shaft 412 of turntable 410 and arrangement concentric with it, driving lever 320 is connect with shaft 410 and driving lever 320 Rotation can drive shaft 410 synchronous rotation, turntable 410 is installed on shell 200 and can be around own axis, turntable 410 Hinged with a pair of links 420 respectively, a pair of links 420 passes through the central axis of turntable 410 with the line of the articulated position of turntable And the both sides of turntable 410 are symmetrically arranged in, the suspension end of connecting rod 420 is articulated with brake silpper 500.
More perfectly, as shown in Fig. 8,10,11, the round platform 230 being connect with turntable 410, turntable are provided on shell 200 It is provided with the mounting groove 414 with 230 arranged concentric of round platform on 410, turntable 410 and 230 arranged concentric of round platform and can be around itself Axis rotates.
As shown in Fig. 1,6,7,11, be provided on shell 200 a pair perpendicular to guide rail guide groove 210 and with guide rail guide groove The 210 braking guide grooves 240 being connected, braking guide groove 240 are symmetrically arranged in the both ends of guide rail guide groove 210 and brake guide groove 240 Match with brake silpper 500, braking guide groove 240 is slided for being oriented to brake silpper 500 along perpendicular to the direction of guide rail guide groove 210 It is dynamic;Braking guide post 250 identical with braking 240 guide direction of guide groove, brake silpper 500 and system are additionally provided on shell 200 250 shiding matching of action-oriented column and braking is socketed in guide post 250 pushes brake silpper 500 to deviate guide rail guide groove 210 Spring.
Under the influence of windage induction mechanism is conducted oneself with dignity and be socketed on braking guide post 250 spring provide elastic effect Under, there is the risk being detached from from braking guide post 250 in brake silpper 500, to solve the technical problem, the present invention should be wrapped also The anti-detachment mechanism that limitation brake silpper 500 is detached from from braking guide post 250 is included, which can be to be set to system Action-oriented column 250 suspends the limited block at end, and anti-detachment mechanism can also be to be set to shell 200 and limit the rotation of driving lever 320 Limited block 260;Under original state, limited block 260 limits the position of driving lever 320 against driving lever 320, to solve to brake The problem of sliding block 500 is detached from from braking guide post 250.
When Lift out of order and when car rapidly glides, the fan housing 310 of windage induction mechanism is occurred by windage effect Deflection, and drive the driving lever being connect with fan housing 310 that deflection clockwise, driving of the turntable 410 being connect with driving lever in driving lever occurs Under synchronize and deflect, since brake silpper 500 is connect by connecting rod 420 with turntable, turntable gives connecting rod in deflection 420 towards guide rail guide groove 210 tractive force, to realize that connecting rod pulls brake silpper 500 towards guide rail guide groove movement, for enhancing Braking effect, brake silpper 500 utilize reticulate pattern to increase friction towards reticulate pattern is provided on the braking end face of guide rail guide groove one end Power improves braking effect.
Further to shorten the stroke of brake silpper 500 and improving the rational deployment of mechanism, the present invention provides more For perfect embodiment, as a shown in Figure 6, under original state, the line of a pair of of driving lever 320 and the articulated position of turntable 410 Across turntable 410 central axis and arranged along the guide direction of guide rail guide groove 210, setting is against driving lever 320 along shell 200 And limit the limited block 260 that driving lever 320 rotates counterclockwise.
When Lift out of order and when car rapidly glides, brake silpper 500 slided towards guide rail guide direction and It is contacted with guide rail surface, brake silpper 500 generates larger resistance to the pressure that guide rail surface applies and the resistance can force sedan-chair Compartment is slowed down and is either stopped when car speed is reduced within the scope of safe speed or is stopped, and windage is smaller, in windage induction mechanism Effect of weight under and be socketed on braking guide post spring elastic effect under, windage induction mechanism will drive turntable 410 occur rotation counterclockwise, so that brake silpper 500 is detached from guide rail surface, at this point, lift car can occur rapidly again The phenomenon that downslide, this kind of situation exactly put brake phenomenon;To avoid a generation for brake phenomenon, the invention also includes be installed on shell 200 and for controlling the irreversible control 600 that brake silpper 500 unidirectionally move towards 210 direction of guide rail guide groove, unidirectional control Mechanism 600 processed can be used the already existing device for having identical function in the prior art and realize, such as ratchet mechanism.
As shown in Fig. 1,6,12, irreversible control 600 comprising be installed on the support plate 610 of shell 200, be set to The rack of brake silpper, the latch 630 for connecting with support plate 610 and matching with rack, support plate 610 and latch The jacking spring 620 for pushing latch 630 to be moved towards brake silpper direction is provided between 630, rack is along braking guide groove 240 Guide direction arrangement and rack on the tooth arranged be helical teeth, be provided on latch 630 and match with the helical teeth on rack Tooth, the tooth being set on latch matched with the helical teeth on rack realize brake silpper unidirectionally towards guide rail sliding chute direction transport It is dynamic.
More perfectly, as shown in Fig. 1,6,7,10, be provided on shell 200 along guide rail guide groove guide direction arrangement and With the one-way locking guide groove that is connected to of braking guide groove 240, one-way locking guide groove and latch shiding matching and led along one-way locking The guide direction of slot is slided, and support plate 610 is installed on the top of one-way locking guide groove.

Claims (3)

1. windage induction type elevator safety brake instrument comprising the shell being fixedly connected with lift car is provided on shell The guide rail guide groove to match with guide rail, it is characterised in that:Shell is also associated with windage induction mechanism, is equipped on shell and windage The interlinked mechanism that induction mechanism matches, shell also shiding matching, which has, to be connect with interlinked mechanism and is slided for the braking of braking Block;
Windage induction mechanism comprising fan housing, the driving lever being connect with fan housing wall portion, fan housing are the bowl body of opening straight down, wind The central axis cylindrical central sleeve parallel with guide rail guide direction, the wall that cylindrical central sleeve passes through connecting plate and fan housing are additionally provided in cover Portion connects, and interval is formed with the air duct being connected with fan housing inner cavity, interior of cylindrical central sleeve between cylindrical central sleeve and the wall portion of fan housing It is switched equipped with air duct, air duct switch includes being socketed on the guide shaft arranged in cylindrical central sleeve and with cylindrical central sleeve coaxial line, guide shaft One end is equipped with interior aerofoil in fan housing, and restraining position ring block is installed on the top of guide shaft;The outside of guide shaft is also socketed between wind Resetting spring between cover and interior aerofoil, the interior cavity direction that resetting spring pushes interior aerofoil towards fan housing move;
The other end of driving lever is connected to interlinked mechanism, and interlinked mechanism includes turntable, and driving lever is connect with turntable and the rotation of driving lever Can drive shaft synchronous rotation, turntable is installed on shell and can be around own axis;Turntable is cut with scissors with a pair of links respectively It connecing, the line of the articulated position of a pair of links and turntable passes through the central axis of turntable and is symmetrically arranged in the both sides of turntable, The suspension end of connecting rod is articulated with brake silpper;
It is provided on shell a pair of perpendicular to guide rail guide groove and the braking guide groove that is connected with guide rail guide groove, braking guide groove are symmetrical It is arranged in the both ends of guide rail guide groove and brakes guide groove and match with brake silpper, braking guide groove is for being oriented to brake silpper along vertical Directly slided in the direction of guide rail guide groove;
Wherein, windage induction type elevator safety brake instrument further includes the anticreep for limiting brake silpper and being detached from from braking guide post It disembarks structure.
2. windage induction type elevator safety brake instrument according to claim 1, it is characterised in that:Above-mentioned anticreep is disembarked Structure is the limited block for being set to braking guide post suspension end.
3. windage induction type elevator safety brake instrument according to claim 2, it is characterised in that:Interior aerofoil be opening to Under bullet and interior aerofoil upper wall portions and fan housing inner wall part shape be adapted.
CN201810741258.5A 2017-02-05 2017-02-05 Windage induction type elevator safety brake instrument Withdrawn CN108792876A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201710064740.5A CN106698140B (en) 2017-02-05 2017-02-05 Elevator catching device
CN201810741258.5A CN108792876A (en) 2017-02-05 2017-02-05 Windage induction type elevator safety brake instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810741258.5A CN108792876A (en) 2017-02-05 2017-02-05 Windage induction type elevator safety brake instrument

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201710064740.5A Division CN106698140B (en) 2017-02-05 2017-02-05 Elevator catching device

Publications (1)

Publication Number Publication Date
CN108792876A true CN108792876A (en) 2018-11-13

Family

ID=58908995

Family Applications (5)

Application Number Title Priority Date Filing Date
CN201810741261.7A Withdrawn CN108792877A (en) 2017-02-05 2017-02-05 Windage induction type elevator brake instrument
CN201710064740.5A Active CN106698140B (en) 2017-02-05 2017-02-05 Elevator catching device
CN201810741268.9A Withdrawn CN108861940A (en) 2017-02-05 2017-02-05 Wind trainer type catching device for elevator brake
CN201810741258.5A Withdrawn CN108792876A (en) 2017-02-05 2017-02-05 Windage induction type elevator safety brake instrument
CN201810741266.XA Withdrawn CN108545567A (en) 2017-02-05 2017-02-05 Windage induction type catching device for elevator brake

Family Applications Before (3)

Application Number Title Priority Date Filing Date
CN201810741261.7A Withdrawn CN108792877A (en) 2017-02-05 2017-02-05 Windage induction type elevator brake instrument
CN201710064740.5A Active CN106698140B (en) 2017-02-05 2017-02-05 Elevator catching device
CN201810741268.9A Withdrawn CN108861940A (en) 2017-02-05 2017-02-05 Wind trainer type catching device for elevator brake

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201810741266.XA Withdrawn CN108545567A (en) 2017-02-05 2017-02-05 Windage induction type catching device for elevator brake

Country Status (1)

Country Link
CN (5) CN108792877A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108373090B (en) * 2018-02-13 2020-01-10 福德斯电梯有限公司 Passenger elevator overspeed governor safety coefficient
CN109650212B (en) * 2019-01-21 2021-06-08 日立电梯(中国)有限公司 Safety protection device, elevator safety control method and elevator

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US4015689A (en) * 1975-03-13 1977-04-05 Lawrence Peska Associates, Inc. Elevator system safety brace device
JPH0811671B2 (en) * 1990-11-20 1996-02-07 フジテック株式会社 Elevator safety equipment
CN102241350A (en) * 2010-05-19 2011-11-16 周荣刚 Magnetic energy clutch device for falling protector of mine rope cage
US9169104B2 (en) * 2010-12-17 2015-10-27 Inventio Ag Activating a safety gear
CN201961920U (en) * 2011-01-17 2011-09-07 金湘江 Anti-dropping safety mechanism for elevator
CN104709793A (en) * 2013-12-16 2015-06-17 西安广融电气有限公司 Anti-falling device of elevator
CN206417749U (en) * 2017-02-05 2017-08-18 六安永贞匠道机电科技有限公司 Elevator catching device

Also Published As

Publication number Publication date
CN108861940A (en) 2018-11-23
CN108545567A (en) 2018-09-18
CN108792877A (en) 2018-11-13
CN106698140B (en) 2019-03-01
CN106698140A (en) 2017-05-24

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Application publication date: 20181113