CN101311096A - Elevator emergency brake gear - Google Patents
Elevator emergency brake gear Download PDFInfo
- Publication number
- CN101311096A CN101311096A CNA2008101079477A CN200810107947A CN101311096A CN 101311096 A CN101311096 A CN 101311096A CN A2008101079477 A CNA2008101079477 A CN A2008101079477A CN 200810107947 A CN200810107947 A CN 200810107947A CN 101311096 A CN101311096 A CN 101311096A
- Authority
- CN
- China
- Prior art keywords
- elevator
- brake component
- emergency braking
- frame
- elastic
- Prior art date
Links
- 230000000875 corresponding Effects 0.000 claims abstract description 15
- 229920001971 elastomer Polymers 0.000 abstract 4
- 239000000806 elastomer Substances 0.000 abstract 4
- 239000002965 ropes Substances 0.000 description 5
- 230000005489 elastic deformation Effects 0.000 description 3
- 280000429270 Surface Contacts companies 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired Effects 0.000 description 1
Abstract
Provided is an emergency brake apparatus used in an elevator, for obtaining braking force corresponding with the specification of the elevator in a simple structure, and realizing stable brake. The emergency brake apparatus comprises a frame main body, mounted on a lifting body, with an upper frame and a lower frame; a pair of brake components, slideably contacted with a guide rail; a pair of elastomers for pressing the brake components on the guide rail; gaskets arranged between the upper frame and the brake components which can be freely detached, and have a plurality of gaskets with different height and sizes, wherein the emergency brake apparatus adjusts the height position of the brake components through changing the gaskets, controls the amount of deformation of the elastomer to obtain proper braking force. In addition, a base which can be freely detached is arranged between the elastomer and the lower frame and has a plurality of gaskets with different height and sizes. Through adopting the scheduled base corresponding to the height and size of the basket, the relative position of the brake component and the elastomer is set as a proper position.
Description
Technical field
The present invention relates to a kind of brake shoe for elevator emergency stop that when lifting body surpasses specified speed, lifting body is promptly stopped.
Background technology
In elevator, have emergency braking apparatus on lift car or the counterbalanced weight, this emergency braking apparatus is as one of safety device, when lifting body is surpassing when carrying out lifting under the situation of specified speed, this lifting body stopped safely.In the ordinary course of things, above-mentioned brake shoe for elevator emergency stop is configured to, make the elastic body that is provided with in the mode that covers brake component produce elastic deformation by the brake component that is provided with in the mode of clamping the guide rail sliding surface and produce elastic force, and by this elastic force with brake component by being pressed on the guide rail, produce braking force with this.But, the specification of elevator relates to various aspects such as command speed, car quality, load-carrying and lifting travel, and the braking force of the desired emergency braking apparatus of various specification is also different, therefore, all must carry out suitable adjustment to braking force at every turn.For this reason, in the prior art, for example shown in the patent documentation 1, piston is set,, when moving, obtains suitable braking force (for example referring to Patent Document 1) to guarantee emergency braking apparatus by the height and position of hydraulic pressure change brake component on the top of brake component.
Patent documentation 1: TOHKEMY 2002-220173 communique
But above-mentioned prior art, be adjusted into this angle of braking force that specification or running state with elevator adapt from braking force with emergency braking apparatus, it is a kind of outstanding technology, but because it need be provided with piston on the top of brake component, and need carry out fluid control, so existence can cause structure to become complicated, and the problem that cost is improved.
In addition, emergency braking apparatus is in order stably to brake, need and be delivered on the brake component effectively with the harmless lost territory of elastomeric elastic force, especially concerning the requirement of using in the elevator of hyper-speed and vast capacity had the emergency braking apparatus of big braking force, above-mentioned needs were more remarkable.Therefore, hope comes the words of control brake power by the height and position of adjusting brake component, because the relative position between brake component and the elastic body can change, and can't be delivered on the brake component equably so can produce elastomeric elastic force, and cause the braking force problem of unstable.
Summary of the invention
The present invention makes according to existing practical problems in the above-mentioned prior art, the emergency braking apparatus that the object of the present invention is to provide a kind of elevator to use, it can obtain the braking force that the specification with elevator adapts with simple structure, and can realize stable braking.
To achieve these goals, a kind of emergency braking apparatus of elevator is disclosed in technical scheme 1 of the present invention, the emergency braking apparatus of this elevator has: chassis body, and it is installed in by on the lifting body that is arranged on the rail guidance in the hoist trunk, and has upper frame and lower frame; Brake component, its be arranged in couples sliding surface with described guide rail relative to the position on, and have the dip plane in a side opposite with guide rail; A pair of elastic body, when described lifting body surpasses specified speed, its with each described brake component respectively by being pressed on the described guide rail; One pair roller, it is along a side setting opposite with guide rail of described brake component; And a pair of guiding piece, it is arranged between this roller and the described elastic body, and has the dip plane in wheels side, wherein, the height and position of the described brake component when moving by adjusting is controlled described elastomeric deflection, to obtain suitable braking force, described emergency braking apparatus is characterised in that, the pad that can freely install and remove is set between described upper frame and described brake component, and have the different a plurality of pads of height dimension, the height and position of the described brake component when adjusting action by changing described pad.
In the related invention of the technical solution of the present invention 1 with said structure, prepare the different a plurality of pads of height dimension in advance, and the specification according to elevator is installed the pad with specified altitude size between upper frame and brake component, the height and position of the brake component when determining the emergency braking apparatus action thus makes it possible to bring into play the braking force that the specification with elevator adapts.So, can be with simple structure, i.e. this simple structure of height and position of brake component when changing pad and adjust the emergency braking apparatus action makes emergency braking apparatus produce the braking force that the specification with elevator adapts.
In addition, the emergency braking apparatus of the elevator that technical solution of the present invention 2 is related is characterised in that, the pedestal that can freely install and remove is set between described elastic body and described lower frame, and have the different a plurality of pedestals of height dimension, can select pedestal with the corresponding regulation of height dimension of described pad.
In the related invention of the technical solution of the present invention 2 with said structure, prepare the different a plurality of pedestals of height dimension in advance, and the pedestal that has the specified altitude size accordingly with the pad of selecting according to the specification of elevator is installed between elastic body and lower frame.Thus, the relative position between brake component and the elastic body can be adjusted to suitable position, elastomeric elastic force be acted on the brake component equably, thereby can realize stable braking.
In addition, the emergency braking apparatus of the elevator that technical solution of the present invention 3 is related is characterised in that to have the anchor fitting that fixing described elastic body is used.
In the related invention of the technical solution of the present invention 3 with said structure, by anchor fitting elastic body is fixed on the position of regulation, can when emergency braking apparatus moves, the harmless lost territory of elastomeric elastic force be delivered on the brake component.
And the emergency braking apparatus of the elevator that technical solution of the present invention 4 is related is characterised in that described anchor fitting is formed by the spacer that is arranged between described elastic body and the described upper frame, and the height dimension of this spacer can change.
In the related invention of the technical solution of the present invention 4 with said structure, owing to can change the height dimension of pedestal, so can change the gap size between elastic body and the upper frame.Therefore, by setting height(from bottom) size between elastic body and upper frame and the corresponding spacer of this gap size, can be effectively fixing elastic body, thereby can when emergency braking apparatus moves, the harmless lost territory of elastomeric elastic force be delivered on the brake component.
In addition, the emergency braking apparatus of the elevator that technical solution of the present invention 5 is related is characterised in that, described spacer constitutes by nut and with bolt that this nut screws togather, by adjusting the rotation amount of described nut, can adjust the height dimension of described spacer.
In the related invention of the technical solution of the present invention 5 with said structure, spacer is made of nut and bolt, owing to can adjust the height dimension of spacer by the rotation amount of adjustment nut, the elevator that can tackle any specification with 1 group of spacer, that is to say, can tackle because of the elastic body that pedestal with a plurality of height dimensions produces and the variation of the gap size between the upper frame have been installed.
The invention effect
According to the present invention, can be with simple structure, i.e. this simple structure of height and position of brake component when changing pad and adjust the emergency braking apparatus action makes emergency braking apparatus produce the braking force that the specification with elevator adapts.Therefore, can in cost-cutting, obtain safe elevator.In addition,, elastomeric elastic force is acted on the brake component equably,, thus, can improve the reliability of emergency braking apparatus to realize stable braking by the relative position between brake component and the elastic body is adjusted to suitable position.
Description of drawings
Fig. 1 is the front view of first embodiment of the emergency braking apparatus of expression elevator involved in the present invention.
Fig. 2 is the front view that the state behind the different pad of height dimension has been installed in expression.
Fig. 3 is the state behind the pedestal has been changed in expression according to pad a front view.
Fig. 4 is the structural representation that the elevator of emergency braking apparatus is installed.
Fig. 5 is the front view of second embodiment of the emergency braking apparatus of expression elevator involved in the present invention.
Fig. 6 is the lateral plan of the emergency braking apparatus of Fig. 5.
Nomenclature
1 lift car
2 counterbalanceds weight
3 hoist trunks
4 hoist cables
5 winchs
6 guide rails
7 governors
8 governor ropes
10,20 emergency braking apparatus
11 chassis body
The 11a upper frame
The 11b lower frame
12 brake components
13 leaf springs (elastic body)
14 rollers
15 guiding pieces
16 pads
17 pedestals
18 spacers
The 18a nut
The 18b bolt
The specific embodiment
Followingly describe with reference to the embodiment of accompanying drawing to the emergency braking apparatus of elevator involved in the present invention.
Fig. 1 is the front view of first embodiment of the emergency braking apparatus of expression elevator involved in the present invention, Fig. 2 is the front view that the state behind the different pad of height dimension has been installed in expression, Fig. 3 is a front view of representing the state behind the pedestal of having changed according to pad, and Fig. 4 is the structural representation that the elevator of emergency braking apparatus is installed.
As shown in Figure 4, be set in the hoist trunk 3, be connected with winch 5 by hoist cable 4, and travel at above-below direction under the guiding of the guide rail in subtend is arranged on hoist trunk 36 as the lift car 1 and the counterbalanced weight 2 of elevator lifting body.Emergency braking apparatus 10 is set in place in the bottom of the car frame of lift car 1 periphery, and clamps guide rail 6 in the horizontal direction, and when lift car 1 surpassed specified speed, emergency braking apparatus was embraced guide rail 6, and lift car 1 is stopped.That is to say, after the governor 7 in being arranged on the Machine Room detects the hypervelocity of elevator, make the ropes that are installed in this governor 7 clasp the part action, be wound on after governor rope 8 on the governor 7 embraced, emergency braking apparatus 10 begins action.
As shown in Figure 1, emergency braking apparatus 10 has: chassis body 11, and it is installed on the lift car 1, and has upper frame 11a and lower frame 11b; Brake component 12, its be arranged in couples sliding surface with described guide rail 6 relative to the position on, and have the dip plane in a side opposite with guide rail; A pair of elastic body, the leaf spring 13 that this a pair of elastic body for example is the U font, it is fixed by hold-down bolt 13a, be used for when lift car 1 surpasses the speed of regulation, with each brake component 12 respectively by being pressed on the guide rail 6; One pair roller 14, it is along a side setting opposite with guide rail of brake component 12; A pair of guiding piece 15, it is arranged between roller 14 and the leaf spring 13, has the dip plane in roller 14 sides; Pad 16, it is installed between upper frame 11a and the brake component 12 dismantledly by hold-down bolt 16a; And pedestal 17, it is installed between leaf spring 13 and the lower frame 11b dismantledly by hold-down bolt 17a.In addition, pad 16 has the different a plurality of pads of height dimension, therefore can suitably use the pad with specified height size according to the specification of elevator.And pedestal 17 has the different a plurality of pedestals of height dimension, therefore can select to use and the corresponding pedestal of stipulating of the height dimension of pad.
Adopted the emergency braking apparatus 10 of said structure to have following characteristic, promptly, owing to have certain rules between the deflection of leaf spring 13 and the elastic force, therefore, along with the deflection of leaf spring 13 changes, act on also corresponding the changing of braking force of the elastic force and the emergency braking apparatus 10 of brake component 12.And along with the variation of the height dimension of pad 16, the amount of movement of the ascent direction of brake component 12 is restricted, and simultaneously, is transformed to the deflection of leaf spring 13 after the amount of movement of this brake component 12 is delivered on the leaf spring 13 by the dip plane.Therefore, the height and position of the brake component 12 when moving by adjusting emergency braking apparatus 10 is controlled the deflection of leaf spring 13, can access suitable braking force.
In addition, as shown in Figure 1, when the little pad 16 of height dimension has been installed between the upper frame 11a of emergency braking apparatus and brake component 12, then when lift car 1 has surpassed the speed of regulation for a certain reason, detect this hypervelocity by governor 7, afterwards, the governor rope 8 that is wound on the governor 7 is embraced, brake component 12 is up mentioned, its sliding surface contacts with guide rail 6, and the dip plane makes leaf spring 13 produce elastic deformations by roller 14 and its dip plane and brake component 12 parallel guide rails 15.At this moment, brake component 12 is lifted to as shown in the figure than higher height and position, and thus, leaf spring 13 produces big deflection, acts on the brake component 12 with the corresponding elastic force of this deflection and produces big braking force.
On the other hand, in specification, braking force need be set hour, the big pad 16 of setting height(from bottom) size between upper frame 11a and brake component 12 according to elevator.But as shown in Figure 2, iff the height dimension that changes pad 16, then the relative position of brake component 12 and leaf spring 13 can produce deviation, and the elastic force of leaf spring 13 can not be delivered to brake component 12 equably, thereby makes the braking force instability.Therefore, as shown in Figure 3, will and the pedestal 17 of the corresponding regulation of the height dimension of pad 16 be installed between leaf spring 13 and the lower frame 11b.In the emergency braking apparatus that the big pad 16 of height dimension has been installed between upper frame 11a and brake component 12 as implied above, when lift car 1 has surpassed the speed of regulation for a certain reason, detect this hypervelocity by governor 7, afterwards, the governor rope 8 that is wound on the governor 7 is embraced, brake component 12 is mentioned up, and its sliding surface contacts with guide rail 6, and the dip plane makes leaf spring 13 produce elastic deformation by roller 14 and its dip plane guide rail 15 parallel with brake component.At this moment, as shown in the figure, brake component 12 can only be lifted to highly lower position, and therefore, the deflection that leaf spring 13 produces is less, act on the brake component 12 with the corresponding elastic force of this deflection after, produce little braking force.In addition,, the relative position between brake component 12 and the leaf spring 13 can be adjusted to suitable position, therefore the elastic force of leaf spring 13 is acted on the brake component 12 equably by the corresponding pedestal 17 of height dimension of use with pad 16.
According to first embodiment, can be with simple structure, i.e. this simple structure of height and position of brake component 12 when changing pad 16 and adjust emergency braking apparatus 10 actions makes emergency braking apparatus 10 produce the braking force that the specification with elevator adapts.Therefore, can reduce the cost of elevator and the safety performance that improves elevator.In addition, by adjusting to suitable position, make the elastic force of leaf spring 13 act on equably on the brake component 12, to realize stable braking with brake component 12 and as the relative position between the elastomeric leaf spring 13, thus, can improve the reliability of emergency braking apparatus 10.
Fig. 5 is the front view of second embodiment of the emergency braking apparatus of expression elevator involved in the present invention, and Fig. 6 is the lateral plan of the emergency braking apparatus of Fig. 5.And the part identical with above-mentioned Fig. 1 to Fig. 3 adopts identical symbolic representation.
As Fig. 5 and shown in Figure 6, the emergency braking apparatus 20 of second embodiment has and is used for fixing the anchor fitting that elastic body is a leaf spring 13, this anchor fitting for example is arranged on the spacer 18 between leaf spring 13 and the upper frame, constitute by nut 18a and with bolt 18b that this nut 18a screws togather by this spacer 18 is arranged to, can adjust the height dimension of spacer 18 by the rotation amount of adjustment nut 18a.
In second embodiment, for the relative position between brake component 12 and the leaf spring 13 is adjusted to suitable position, adopt the corresponding pedestal 17 of height dimension with pad 16, at this moment, owing to can change the height dimension of pedestal 17, so must change the gap size between leaf spring 13 and the upper frame 11a.For this reason, the corresponding spacer 18 of setting height(from bottom) size and this gap size between leaf spring 13 and upper frame 11a.At this moment, the rotation amount of the nut 18a by adjusting spacer 18 makes the height dimension of spacer 18 corresponding with the size of space between leaf spring 13 and the upper frame 11a.So, by spacer 18 leaf spring 13 is fixed on the chassis body 11 firmly, the load that acts on the leaf spring 13 in the time of can preventing because of emergency braking apparatus 20 actions makes leaf spring 13 produce skew.
According to second embodiment, by setting height(from bottom) size and the corresponding spacer 18 of its gap size between as elastomeric leaf spring 13 and upper frame 11a, firmly fix leaf spring 13, can when emergency braking apparatus 20 actions, the not impaired lost territory of elastic force of leaf spring 13 is delivered on the brake component 12.In addition, by being arranged to, spacer 18 constitutes by nut 18a and bolt 18b, make it possible to adjust the height dimension of spacer 18 by the rotation amount of adjustment nut 18a, thereby can deal with the elevator of all specifications with 1 group of spacer 18, promptly tackle because of the leaf spring 13 that pedestal 17 with a plurality of height dimensions produces and the variation of the gap size between the upper frame 11a have been installed.
Claims (5)
1. the emergency braking apparatus of an elevator, the emergency braking apparatus of this elevator has: chassis body, it is installed in by on the lifting body that is arranged on the rail guidance in the hoist trunk, and has upper frame and lower frame; Brake component, its be arranged in couples sliding surface with described guide rail relative to the position on, and have the dip plane in a side opposite with guide rail; A pair of elastic body, when described lifting body surpasses specified speed, its with each described brake component respectively by being pressed on the described guide rail; One pair roller, it is along a side setting opposite with guide rail of described brake component; And a pair of guiding piece, it is arranged between this roller and the described elastic body, and has the dip plane in wheels side, wherein, the height and position of the described brake component when moving by adjusting is controlled described elastomeric deflection, to obtain suitable braking force, described emergency braking apparatus is characterised in that
The pad that can freely install and remove is set between described upper frame and described brake component, and has the different a plurality of pads of height dimension, the height and position of the described brake component when adjusting action by changing described pad.
2. the emergency braking apparatus of elevator as claimed in claim 1, it is characterized in that, the pedestal that can freely install and remove is set between described elastic body and described lower frame, and have the different a plurality of pedestals of height dimension, can select pedestal with the corresponding regulation of height dimension of described pad.
3. the emergency braking apparatus of elevator as claimed in claim 2 is characterized in that, has fixing described elastomeric anchor fitting.
4. the emergency braking apparatus of elevator as claimed in claim 3 is characterized in that, described anchor fitting is made of the spacer that is arranged between described elastic body and the described upper frame, and the height dimension of this spacer can change.
5. the emergency braking apparatus of elevator as claimed in claim 4 is characterized in that, described spacer constitutes by nut and with bolt that this nut screws togather, by adjusting the rotation amount of described nut, can adjust the height dimension of described spacer.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007137046A JP4966740B2 (en) | 2007-05-23 | 2007-05-23 | Elevator emergency stop device |
| JP2007137046 | 2007-05-23 | ||
| JP2007-137046 | 2007-05-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101311096A true CN101311096A (en) | 2008-11-26 |
| CN101311096B CN101311096B (en) | 2011-03-16 |
Family
ID=40099956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101079477A CN101311096B (en) | 2007-05-23 | 2008-05-21 | Elevator emergency brake gear |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4966740B2 (en) |
| CN (1) | CN101311096B (en) |
| HK (1) | HK1123269A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530675A (en) * | 2010-11-24 | 2012-07-04 | 株式会社日立制作所 | Elevator device |
| CN102616621A (en) * | 2011-01-27 | 2012-08-01 | 东芝电梯株式会社 | Brake device for elevator |
| CN102653370A (en) * | 2011-03-02 | 2012-09-05 | 株式会社日立制作所 | Elevator device |
| CN103224176A (en) * | 2012-01-26 | 2013-07-31 | 株式会社日立制作所 | An emergency braking device used for an elevator and an elevator |
| CN103339052A (en) * | 2010-12-01 | 2013-10-02 | 通力股份公司 | Elevator arrangement and method |
| CN104507842A (en) * | 2012-08-02 | 2015-04-08 | 三菱电机株式会社 | Emergency stop device for elevator |
| CN104692213A (en) * | 2013-09-27 | 2015-06-10 | 株式会社日立制作所 | Emergency braking device of elevator |
| CN105905740A (en) * | 2016-06-25 | 2016-08-31 | 浙江南奥电梯有限公司 | Elevator safety clamp |
| CN105923497A (en) * | 2016-06-25 | 2016-09-07 | 浙江南奥电梯有限公司 | Explosion-proof elevator |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5539044B2 (en) * | 2010-06-09 | 2014-07-02 | 株式会社日立製作所 | Elevator braking device |
| JP5810015B2 (en) * | 2012-03-16 | 2015-11-11 | 株式会社日立製作所 | Elevator with safety device |
| JP6068607B1 (en) * | 2015-12-03 | 2017-01-25 | 東芝エレベータ株式会社 | Emergency stop device and elevator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62222990A (en) * | 1986-03-24 | 1987-09-30 | Mitsubishi Electric Corp | Emergency stop device for elevator |
| JP4341728B2 (en) * | 1999-04-22 | 2009-10-07 | 東芝エレベータ株式会社 | Elevator emergency stop device |
| BR0111068B1 (en) * | 2000-05-25 | 2010-12-14 | Brake device for an elevator. | |
| JP2004075298A (en) * | 2002-08-20 | 2004-03-11 | Toshiba Elevator Co Ltd | Emergency stop device for elevator |
| CN2685301Y (en) * | 2004-03-17 | 2005-03-16 | 上海精润金属制品有限公司 | Elevator safety tongs |
| WO2006064555A1 (en) * | 2004-12-15 | 2006-06-22 | Mitsubishi Denki Kabushiki Kaisha | Elevator emergency stop device |
| JP4594803B2 (en) * | 2005-06-08 | 2010-12-08 | 株式会社日立製作所 | Elevator emergency stop device |
-
2007
- 2007-05-23 JP JP2007137046A patent/JP4966740B2/en active Active
-
2008
- 2008-05-21 CN CN2008101079477A patent/CN101311096B/en active IP Right Grant
-
2009
- 2009-03-18 HK HK09102586.7A patent/HK1123269A1/en unknown
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530675B (en) * | 2010-11-24 | 2015-05-20 | 株式会社日立制作所 | Elevator device |
| CN102530675A (en) * | 2010-11-24 | 2012-07-04 | 株式会社日立制作所 | Elevator device |
| CN103339052A (en) * | 2010-12-01 | 2013-10-02 | 通力股份公司 | Elevator arrangement and method |
| CN103339052B (en) * | 2010-12-01 | 2017-03-29 | 通力股份公司 | Elevator arrangement and method |
| CN102616621A (en) * | 2011-01-27 | 2012-08-01 | 东芝电梯株式会社 | Brake device for elevator |
| CN102653370A (en) * | 2011-03-02 | 2012-09-05 | 株式会社日立制作所 | Elevator device |
| CN102653370B (en) * | 2011-03-02 | 2015-10-28 | 株式会社日立制作所 | Lift facility |
| CN103224176A (en) * | 2012-01-26 | 2013-07-31 | 株式会社日立制作所 | An emergency braking device used for an elevator and an elevator |
| CN104507842A (en) * | 2012-08-02 | 2015-04-08 | 三菱电机株式会社 | Emergency stop device for elevator |
| CN104692213A (en) * | 2013-09-27 | 2015-06-10 | 株式会社日立制作所 | Emergency braking device of elevator |
| CN105923497A (en) * | 2016-06-25 | 2016-09-07 | 浙江南奥电梯有限公司 | Explosion-proof elevator |
| CN105905740A (en) * | 2016-06-25 | 2016-08-31 | 浙江南奥电梯有限公司 | Elevator safety clamp |
| CN105905740B (en) * | 2016-06-25 | 2018-06-05 | 潘国强 | A kind of elevator safety gear |
| CN105923497B (en) * | 2016-06-25 | 2018-06-15 | 潘国强 | A kind of explosion-proof lift |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008290832A (en) | 2008-12-04 |
| CN101311096B (en) | 2011-03-16 |
| JP4966740B2 (en) | 2012-07-04 |
| HK1123269A1 (en) | 2009-06-12 |
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