CN1608970A - Elevator cable brake - Google Patents
Elevator cable brake Download PDFInfo
- Publication number
- CN1608970A CN1608970A CN 200410018552 CN200410018552A CN1608970A CN 1608970 A CN1608970 A CN 1608970A CN 200410018552 CN200410018552 CN 200410018552 CN 200410018552 A CN200410018552 A CN 200410018552A CN 1608970 A CN1608970 A CN 1608970A
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- main cable
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- drg
- slide
- electromagnet
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- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 239000011159 matrix material Substances 0.000 claims description 20
- 239000002783 friction material Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000009471 action Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000002457 bidirectional effect Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000003716 rejuvenation Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The elevator cable brake includes main cable holding mechanism, and triggering and resetting mechanism, and features that the main cable passes through the main cable holding mechanism comprising right clamp, left clamp and their connecting board; the left clamp consists of left base body, wedge and roller plate in between and can realize low friction sliding; the wedge is connected to the triggering and resetting mechanism for triggering and resetting; the right clamp consists of right base body, sliding plate, guide plate, accumulating spring, regulating washer and sliding shaft capable of sliding inside the holes of the right and left base bodies; and the sliding plate can slide in the surface of the guide plate and may be connected to the right base body via auxiliary mechanism for assisting the reposition of the holding mechanism. The elevator cable brake has low cost and easy installation, and may be triggered electrically and restored automatically.
Description
Affiliated technical field
The present invention relates to a kind of under unusual condition, passing through and clamp the elevator main cable, thereby make the safety device of deceleration of elevator or stop.
Background technology
Elevator in the past only has descending brake equipment, does not have special upward travel protector.Along with the rush to summit generation of accident of elevator, the content about up-running over-speed protection has all been appended by each state in the elevator standard, in the industry to the research and development of this fender guard with promote and also be in full swing.Because the main cable drg as a stand-alone assembly in the elevator complete machine, is easy to make; And and the relevance of other parts is less on the elevator, no matter can install easily under the new clothes elevator or the situation of old ladder transformation, so obtained utilization widely.
Present existing main cable brakeage principle is mainly as follows:
1, with elastic element as holding device, with an exterior device as engine installation.Under normal condition, utilize elastic element braking element to be remained on the position that breaks away from main cable.After being triggered, an exterior device discharges the energy that prestores, and overcomes the confining force of elastic element and clamps main cable thereby drive braking element.
2, with elastic element as engine installation.Under the normal condition, elastic element is subjected to pretension, and is maintained at preposition together with braking element.After being triggered, elastic element discharges, and drives braking element clamping main cable.
In the 1st scheme, need the device of an exterior stored energy, and the energy that this device is stored need be confirmed effectively, this makes mechanism's complexity, cost is also higher.
In the 2nd scheme, because elastic element power in dispose procedure can diminish gradually, and need to drive braking element and clamp main cable by certain stroke, so it need keep bigger power under the pretension state, and have enough pretension strokes, this can directly cause the increase of elastic element volume and the rising of cost.In addition, when the main cable drg is resetted, elastic element be returned to bigger predetermincd tension and bigger pretension stroke, need do bigger merit, the difficulty of recovery is bigger.
Summary of the invention
The purpose of this invention is to provide a kind of elevator main cable drg, it can carry out gradual braking to up elevator after receiving energizing signal, thereby implements protection, and has characteristics low-cost and that easily recover simultaneously.
The technical solution adopted in the present invention is: a kind of elevator main cable drg, comprise main cable clamping device, triggering and Bringing-back mechanism, and it is characterized in that: form clamping device by left caliper, right caliper body and the connecting panel that is connected both, main cable passes therethrough; Left caliper by left matrix, carve piece and place roller plate between the two to form, carve piece can be realized low friction on left matrix slip by roller plate; Carve piece and be connected, by its triggering with reset with triggering and Bringing-back mechanism; Right caliper body is made up of right matrix, slide plate, guide plate, energy-storaging spring, bearing cap shim, slide shaft, and the slide shaft that is fixed on the guide plate can slide in the hole of right matrix, and slide plate can slide along the surface of guide plate; Slide plate also is connected with right matrix by auxiliary mechanism, and this auxiliary mechanism can assist resetting of clamping device.
Above-mentionedly carve piece and slide plate is being fixed with the friction material plate on the face of main cable.
The performance of above-mentioned energy-storaging spring, quantity, the thickness of bearing cap shim can adjust according to the diameter of the elevator main cable that is suitable for and required Clamping force size.
Above-mentioned triggering and Bringing-back mechanism can adopt electromagnet to handle to carve piece and form, and the adhesive of electromagnet, discharge by the switching electricity of elevator overspeed signal and system and control.
Above-mentioned electromagnet and the movement relation of carving between the piece are not proportional fully: fix a movable pulley on the moving iron core of electromagnet, walk around this movable pulley the manipulation cable wire an end with carve piece and be connected, the other end is connected on the movable end seat and by the tensioning spring tensioning, and the position that this movable end seat is blocked is this side and handles the end position of cable wire to the motion of electromagnet direction.
Above-mentioned electromagnet with carve a end that non-complete proportional movement relation between the piece also can be by will handling cable wire and carve piece and be connected, the other end is also realized with the mode that a movable slide is connected.
Above-mentioned triggering and Bringing-back mechanism also can adopt the control cable control to carve piece and form: can will carve piece with the control drag-line and remain on away from the position that clamps, the deadweight of carving piece then impels self to the direction motion that clamps; Also can will carve piece by spring force and remain on away from the position that clamps, the control drag-line then impels carves piece to the direction motion that clamps.
Above-mentioned auxiliary mechanism forms by being fixed on auxiliary bolt on the right matrix and the assist spring that is enclosed within on the auxiliary bolt, and an end of assist spring withstands the bolt cap of auxiliary bolt, and the other end withstands slide plate or is fixed on friction plate on the slide plate.
The Kong Weike of above-mentioned connecting panel bottom is used for connecting left and right caliper and base simultaneously.
On the above-mentioned base with three holes of connecting panel bonded assembly in, middle one is circular hole, two other is a long arc-shaped holes, the bolt that is positioned at two long arc-shaped holes can slide in long arc-shaped holes with bolt around the articulation hole that passes circular hole.
The present invention has following beneficial effect: constantly discharge because this main cable drg energy-accumulating element in clamping process is constantly tightened, so do not need before the action with energy-storaging spring prestore bigger predetermincd tension and pretension stroke, thereby less demanding to energy-storaging spring, cost is also lower.In this main cable drg, used have a unidirectional self-lock characteristic carve piece as clamping element, it both was triggered easily, also was resumed easily, triggered and Bringing-back mechanism both can adopt electric mode, also can adopt mechanical mode; No matter adopt which kind of mode, after the main cable drg clamps main cable, all can adopt the electronic descending mode of elevator low speed will carve piece and discharge easily and then reset; Especially when adopting electric means (electromagnet is handled and carved piece as triggering and Bringing-back mechanism), as long as lift car is not in up running state, even fall owing to the elevator accident power-off causes electromagnet to discharge and then cause carving piece so, carve piece and can be automatically reset by electromagnet too and can not cause fault when elevator supply recovers, this mode is because not require velocity limiter be bidirectional speed limiter and have remarkable economical and convenience in the technological change of existing elevator.The mounting means of this main cable drg is very flexible, thereby both can be adjusted to required angle by the long arc-shaped holes on the base is installed on the main engine bed between traction sheave and the track adjusting wheel, also can be installed on the ground drg frame of machine room of track adjusting wheel below in the machine room, can also instead be contained on the main engine bed of traction sheave below.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing and a preferred embodiment.
Fig. 1 is the scheme of installation of main cable drg in elevator(lift) machine room.
Fig. 2 is the front view before the action of main cable drg.
Fig. 3 adopts electromagnet to handle to carve piece as triggering and the main cable drg of the Bringing-back mechanism front view before the base of removing cover plate and the place ahead, action behind the connecting panel.
Fig. 4 is Fig. 3 under the static situation of lift car owing to the front view that has a power failure after triggering.
Fig. 5 is the front view of Fig. 3 after clamping main cable.
Fig. 6 adopts the control cable control to carve piece as triggering and the main cable drg of the Bringing-back mechanism front view before the base of removing cover plate and the place ahead, action behind the connecting panel.
Fig. 7 is the front view of Fig. 6 after clamping main cable.
1. traction sheaves among the figure, 2. main cable drg, 3. main engine bed, 4. track adjusting wheel, 5. main cable, 6. counterweight, 7. lift car, 8. cover plate, 9. connecting panel, 10. base, 11. long arc-shaped holes, 12. plain bolt, 13. articulation hole bolts, 14. left matrixes, 15. roller plate, 16. carve piece, 17. friction material plates, 18. fixed pulley, 19. movable end seats, 20. tensioning springs, 21. the manipulation cable wire, 22. movable pulleys, 23. electromagnet, 24. auxiliary bolt, 25. assist springs, 26. right matrixes, 27. energy-storaging spring, 28. bearings cap shim, 29. slide shafts, 30. guide plate, 31. slide plates, 32. control drag-lines.
The specific embodiment
One embodiment of the present of invention as shown in Figure 1, hang lift car 7 and counterweight 6 by main cable 5, do perpendicular movement up and down along car guide rail and counterweight guide rail respectively, one end of elevator main cable 5 is connected on the car 7, and extends to machine room always, walks around traction sheave 1, pass main cable drg 2 then, walk around track adjusting wheel 4 again, pass machine room and enter hoistway, the other end is connected counterweight 6 tops.In addition, main cable drg 2 also can be vertically mounted on the below of track adjusting wheel 4, can also the vertically anti-below that is contained in traction sheave 1.
Except 1: 1 winding of aforesaid elevator main cable 5, also comprise 2: 1 winding.
Fig. 2 is the front view of the present invention before action.Connecting panel 9 connects to form clamping device by plain bolt 12 with left caliper, right caliper body, and the Kong Weike of connecting panel 9 bottoms is used for connecting left and right caliper and base 10 simultaneously.On the base 10 with three holes of connecting panel 9 bonded assemblys in, middle one is circular hole, two other is a long arc-shaped holes 11, the plain bolt 12 that is positioned at two long arc-shaped holes can slide in long arc-shaped holes 11 with bolt 13 around the articulation hole that passes circular hole, therefore this main cable drg 2 can rotate a certain angle with bolt 13 around articulation hole, to adapt to different main cable angles of inclination.
Fig. 3 adopts electromagnet 23 to handle to carve piece 16 as triggering and the main cable drg 2 of the Bringing-back mechanism front view before the base 10 of removing cover plate 8 and the place ahead, action behind the connecting panel 9.Comprise main cable clamping device, triggering and Bringing-back mechanism, it is characterized in that: form clamping device by left caliper, right caliper body and the connecting panel 9 that is connected both, main cable 5 passes therethrough; Left caliper by left matrix 14, carve piece 16 and place roller plate 15 between the two to form, carve piece 16 can be realized low friction on left matrix 14 slip by roller plate 15; Carve piece 16 and be connected, by its triggering with reset with triggering and Bringing-back mechanism; Right caliper body is made up of right matrix 26, slide plate 31, guide plate 30, energy-storaging spring 27, bearing cap shim 28, slide shaft 29, and the slide shaft 29 that is fixed on the guide plate 30 can slide in the hole of right matrix 26, and slide plate 31 can slide along the surface of guide plate 30; Slide plate also is connected with right matrix 26 by auxiliary mechanism, and this auxiliary mechanism can assist resetting of clamping device.On the face of main cable 5, be fixed with friction material plate 17 carving piece 16 and slide plate 31.The performance of energy-storaging spring 27, quantity, the thickness of bearing cap shim 28 can adjust according to the diameter of the elevator main cable 5 that is suitable for and required Clamping force size.
Triggering and 23 manipulations of Bringing-back mechanism employing electromagnet are carved piece 16 and are formed, and the adhesive of electromagnet 23, release are controlled by the switching electricity of elevator overspeed signal and system.Electromagnet 23 and the movement relation of carving between the piece 16 are not proportional fully: fix a movable pulley 22 on the moving iron core of electromagnet 23, one end of the manipulation cable wire 21 of the fixed pulley 18 on walking around this movable pulley 22 and being fixed in left matrix 14 with carve piece 16 and be connected, the other end is connected on the movable end seat 19 and by tensioning spring 20 tensionings.Before not triggering, this movable end seat 19 is drawn to the position that is blocked by electromagnet 23, and the end position of cable wire 21 to the motion of electromagnet 23 directions also handled for this side in this position; Carve piece 16 simultaneously and also be drawn to the end position that is blocked by electromagnet 23.This electromagnet 23 with carve a end that non-complete proportional movement relation between the piece 16 also can be by will handling cable wire 21 and carve piece 16 and be connected, the other end is also realized with the mode that a movable slide is connected.
The assist spring 25 that is fixed on the auxiliary bolt 24 on the right matrix 26 and is enclosed within on the auxiliary bolt 24 is formed auxiliary mechanism, and an end of assist spring 25 withstands the bolt cap of auxiliary bolt 24, and the other end withstands the friction plate 17 that is fixed on the slide plate 31.
Fig. 4 is Fig. 3 under the static situation of lift car 7 owing to the front view that has a power failure after triggering.Electromagnet 23 releases this moment, carve piece 16 and stop to the motion of the direction of main cable 5 and because of the effect of the resistance of main cable 5 and friction force, tensioning spring 20 then is pulled to end position when discharging by handling cable wire 21 and movable pulley 22 with the moving iron core of electromagnet 23.
After elevator supply recovers, electromagnet 23 adhesive again, and main cable drg 2 is resetted: because the spring force of tensioning spring 20 is much smaller than recovering to carve the required power of piece 16 by following process, so electromagnet 23 drags movable end seat 19 compression tensioning springs 20 earlier, because the electromagnetic force of electromagnet 23 is much larger than the spring force of tensioning spring 20, electromagnet 23 is the continuous accumulation energy of meeting in this process; After movable end seat 19 is drawn to the end position that is blocked by electromagnet 23, electromagnet 23 begins to recover to carve piece 16, because electromagnet 23 accumulated enough energy before this, so the time even carve piece 16 stuck slightly situation is arranged, also can be drawn back by electromagnet 23 and reset.
Owing to adopt main cable drg 2 of the present invention after outage, can automatically reset on the one hand; Carve piece itself on the other hand and have the characteristic of easy recovery, and adopted mechanism's mode of electromagnet 23 accumulation of energy in rejuvenation, make the capacity of required electromagnet 23 reduce greatly; Add and do not require that velocity limiter is a bidirectional speed limiter; So aspect whole Cost And Performance, especially in the technological change of existing elevator, have remarkable economical and convenience.
Fig. 5 is the front view of Fig. 3 after clamping main cable 5.In the process of up hypervelocity, electromagnet 23 receives the ascending for elevator overspeed signal and discharges, and carves piece 16 and triggers.Owing to carve the characteristic that piece has self-locking, can under the friction force effect of main cable 5, move to the end position that clamps main cable 5 always.
In course of action, carve piece 16 and promote friction material plate 17, slide plate 31, guide plate 30, and then compress energy-storaging spring 27, and produce the friction force of stop elevator car 7 by main cable 5.Because constantly tightening, this main cable drg 2 energy-accumulating element 27 in clamping process constantly discharges, so do not need before the action with energy-storaging spring 27 prestore bigger predetermincd tension and pretension stroke, thereby less demanding to energy-storaging spring 27, cost is also lower, and is easy to control final gripping power and friction force.
Owing to adopted and carve block structure, after this main cable drg 2 clamps main cables 5, adopt the electronic descending mode of elevator low speed can will carve piece 16 and discharge easily and then main cable drg 2 is resetted.
Fig. 6 adopts control drag-line 32 to handle to carve piece 16 as triggering and the main cable drg 2 of the Bringing-back mechanism front view before the base 10 of removing cover plate 8 and the place ahead, action behind the connecting panel 9.In the present invention, one end of the heart yearn of control drag-line 32 links to each other with bidirectional speed limiter, the other end is walked around the fixed pulley 18 that is fixed on the left matrix 14 and is carved piece 16 and be connected, the heart yearn of control drag-line 32 will be carved piece 16 and remain on away from the position that clamps, and the deadweight of carving piece 16 then impels self to the direction motion that clamps.Also can will carve piece 16 by spring force and remain on away from the position that clamps, the control drag-line then impels carves piece 16 to the direction motion that clamps.
Fig. 7 is the front view of Fig. 6 after clamping main cable 5.After the bidirectional speed limiter action, carve piece 16 actions, cable brake 2 clamps main cable 5.
Adopting the electronic descending mode of elevator low speed can will carve piece 16 discharges easily and then main cable drg 2 is resetted.
Claims (10)
1. an elevator main cable drg comprises main cable clamping device, triggering and Bringing-back mechanism, it is characterized in that: form clamping device by left caliper, right caliper body and the connecting panel that is connected both, main cable passes therethrough; Left caliper by left matrix, carve piece and place roller plate between the two to form, carve piece can be realized low friction on left matrix slip by roller plate; Carve piece and be connected, by its triggering with reset with triggering and Bringing-back mechanism; Right caliper body is made up of right matrix, slide plate, guide plate, energy-storaging spring, bearing cap shim, slide shaft, and the slide shaft that is fixed on the guide plate can slide in the hole of right matrix, and slide plate can slide along the surface of guide plate; Slide plate also is connected with right matrix by auxiliary mechanism, and this auxiliary mechanism can assist resetting of clamping device.
2. elevator main cable drg as claimed in claim 1 is characterized in that: describedly carve piece and slide plate is being fixed with the friction material plate on the face of main cable.
3. elevator main cable drg as claimed in claim 1 is characterized in that: the performance of described energy-storaging spring, quantity, the thickness of bearing cap shim can adjust according to the diameter of the elevator main cable that is suitable for and required Clamping force size.
4. elevator main cable drg as claimed in claim 1 is characterized in that: described triggering and Bringing-back mechanism can adopt electromagnet to handle to carve piece and form, and the adhesive of electromagnet, discharge by the switching electricity of elevator overspeed signal and system and control.
5. elevator main cable drg as claimed in claim 4, it is characterized in that: described electromagnet and the movement relation of carving between the piece are not proportional fully: fix a movable pulley on the moving iron core of electromagnet, walk around this movable pulley the manipulation cable wire an end with carve piece and be connected, the other end is connected on the movable end seat and by the tensioning spring tensioning, and the position that this movable end seat is blocked is this side and handles the end position of cable wire to the motion of electromagnet direction.
6. elevator main cable drg as claimed in claim 5, it is characterized in that: described electromagnet with carve a end that non-complete proportional movement relation between the piece also can be by will handling cable wire and carve piece and be connected, the other end is also realized with the mode that a movable slide is connected.
7. elevator main cable drg as claimed in claim 1, it is characterized in that: described triggering and Bringing-back mechanism also can adopt the control cable control to carve piece and form: can will carve piece with the control drag-line and remain on away from the position that clamps, the deadweight of carving piece then impels self to the direction motion that clamps; Also can will carve piece by spring force and remain on away from the position that clamps, the control drag-line then impels carves piece to the direction motion that clamps.
8. elevator main cable drg as claimed in claim 1, it is characterized in that: described auxiliary mechanism is made up of the assist spring that is fixed on the auxiliary bolt on the right matrix and be enclosed within on the auxiliary bolt, one end of assist spring withstands the bolt cap of auxiliary bolt, and the other end withstands slide plate or is fixed on friction plate on the slide plate.
9. elevator main cable drg as claimed in claim 1 is characterized in that: the Kong Weike of described connecting panel bottom is used for connecting left and right caliper and base simultaneously.
10. elevator main cable drg as claimed in claim 1, it is characterized in that: on the described base with three holes of connecting panel bonded assembly in, middle one is circular hole, two other is a long arc-shaped holes, and the bolt that is positioned at two long arc-shaped holes can slide in long arc-shaped holes with bolt around the articulation hole that passes circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100185521A CN100556785C (en) | 2004-05-21 | 2004-05-21 | Elevator main cable drg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100185521A CN100556785C (en) | 2004-05-21 | 2004-05-21 | Elevator main cable drg |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1608970A true CN1608970A (en) | 2005-04-27 |
| CN100556785C CN100556785C (en) | 2009-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100185521A Expired - Fee Related CN100556785C (en) | 2004-05-21 | 2004-05-21 | Elevator main cable drg |
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| Country | Link |
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| CN (1) | CN100556785C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037179B (en) * | 2006-03-16 | 2010-05-26 | 安全技术株式会社 | Emergency brake device of an elevator |
| CN1895990B (en) * | 2005-07-15 | 2010-08-18 | 株式会社丰田自动织机 | Lift device for industrial vehicle |
| CN102259790A (en) * | 2011-08-20 | 2011-11-30 | 太原理工大学 | Rope locking device through multi-rope hydraulic synchronization control |
| CN102633177A (en) * | 2012-04-17 | 2012-08-15 | 蒂森电梯有限公司上海松江分公司 | Rope-clamping device for installing steel wire rope of elevator |
| CN102795526A (en) * | 2012-08-28 | 2012-11-28 | 刘德民 | Progressive rope gripper and progressive overspeed protection safety device for dragging type lifting device |
| CN103482520A (en) * | 2013-09-22 | 2014-01-01 | 江苏武东机械有限公司 | Building-block-type safety brake |
| CN104291178A (en) * | 2014-10-09 | 2015-01-21 | 安徽理工大学 | Full-automatic velocity-limiting anti-falling device |
| CN105329737A (en) * | 2015-10-28 | 2016-02-17 | 上海和蕴机电科技有限公司 | Electric control falling-preventing system, carrying platform system and control method of electric control falling-preventing system |
| US10214385B2 (en) | 2017-01-25 | 2019-02-26 | Otis Elevator Company | Elevator brake wedge |
| US10889468B2 (en) | 2016-12-13 | 2021-01-12 | Otis Elevator Company | Electronics safety actuator |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO20100666A1 (en) * | 2010-05-07 | 2011-11-08 | C6 Technologies As | Brake for an elongated element |
-
2004
- 2004-05-21 CN CNB2004100185521A patent/CN100556785C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1895990B (en) * | 2005-07-15 | 2010-08-18 | 株式会社丰田自动织机 | Lift device for industrial vehicle |
| CN101037179B (en) * | 2006-03-16 | 2010-05-26 | 安全技术株式会社 | Emergency brake device of an elevator |
| CN102259790A (en) * | 2011-08-20 | 2011-11-30 | 太原理工大学 | Rope locking device through multi-rope hydraulic synchronization control |
| CN102633177A (en) * | 2012-04-17 | 2012-08-15 | 蒂森电梯有限公司上海松江分公司 | Rope-clamping device for installing steel wire rope of elevator |
| CN102633177B (en) * | 2012-04-17 | 2014-04-16 | 蒂森克虏伯电梯（上海）有限公司 | Rope-clamping device for installing steel wire rope of elevator |
| CN102795526A (en) * | 2012-08-28 | 2012-11-28 | 刘德民 | Progressive rope gripper and progressive overspeed protection safety device for dragging type lifting device |
| CN102795526B (en) * | 2012-08-28 | 2014-12-10 | 刘德民 | Progressive rope gripper and progressive overspeed protection safety device for dragging type lifting device |
| CN103482520A (en) * | 2013-09-22 | 2014-01-01 | 江苏武东机械有限公司 | Building-block-type safety brake |
| CN104291178A (en) * | 2014-10-09 | 2015-01-21 | 安徽理工大学 | Full-automatic velocity-limiting anti-falling device |
| CN105329737A (en) * | 2015-10-28 | 2016-02-17 | 上海和蕴机电科技有限公司 | Electric control falling-preventing system, carrying platform system and control method of electric control falling-preventing system |
| US10889468B2 (en) | 2016-12-13 | 2021-01-12 | Otis Elevator Company | Electronics safety actuator |
| US10214385B2 (en) | 2017-01-25 | 2019-02-26 | Otis Elevator Company | Elevator brake wedge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100556785C (en) | 2009-11-04 |
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