CN102107806A - Protecting method for mounting propeller on elevator - Google Patents
Protecting method for mounting propeller on elevator Download PDFInfo
- Publication number
- CN102107806A CN102107806A CN200910200788XA CN200910200788A CN102107806A CN 102107806 A CN102107806 A CN 102107806A CN 200910200788X A CN200910200788X A CN 200910200788XA CN 200910200788 A CN200910200788 A CN 200910200788A CN 102107806 A CN102107806 A CN 102107806A
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- Prior art keywords
- elevator
- screw propeller
- propeller
- speed
- guard method
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Abstract
The invention discloses a protecting method for mounting a propeller on an elevator. The method comprises: the propeller is mounted on the elevator, when the elevator is out of control, an elevator cab starts to accelerate under the action of gravity; and when declining of the elevator achieves a certain speed, the rotating speed of the propeller is accelerated, the rotation of the propeller generates a lift force, the direction of the lift force generated by the propeller is opposite to that of the gravity, and the declining speed of the elevator cab is reduced, so that safety of passengers in the elevator cab is protected. The lift force of the propeller and the air resistance are in a non-linear relationship, so the higher the declining speed is, the higher the air resistance is; and the higher the air resistance is, the higher the rotating speed of the propeller is, and the larger the generated lift force is. The protecting method for mounting the propeller on the elevator is used for protecting the elevator, and reducing the declining speed of the elevator when the elevator is out of control so as to protect the safety of the passengers in the elevator cab.
Description
Technical field
The present invention relates to a kind of guard method of elevator, particularly relate to a kind of guard method that screw propeller is installed on elevator.
Technical background
Along with China's urban development, high building is more and more now, and the use amount of elevator is also increasing, and elevator safety in use is also more and more important.The technology that a lot of protection elevator safeties are arranged now; disclose a kind of elevator safety technology as Patent Office of the People's Republic of China in the invention of the patent No. 99814990.X denomination of invention " the no cable wire speed limiting mechanism of elevator car " of 2002.01.16 bulletin, this invention can be carried out speed limit to elevator under elevator overspeed.Can be under specific condition but this employing electric elements carry out the method for speed limit because the fault of electric elements can produce inefficacy.And for example Patent Office of the People's Republic of China discloses a kind of elevator safety technology in disclosed number of patent application 200610118493.4 denominations of invention of 2008.06.04 " elevator overspeed testing apparatus ", this invention can detect the overspeed condition of elevator, but how this invention reduces the safety that the running velocity of elevator guarantees the passenger in the elevator when also unresolved but elevator is out of control.Therefore, be badly in need of a kind of safety method of fundamentally protecting elevator particularly to protect elevator passenger now.
Summary of the invention
The objective of the invention is to overcome above-mentioned shortcoming, the guard method of the elevator that a kind of technology is simple, reliability is high is provided.
For this reason; the invention provides a kind of guard method that screw propeller is installed on elevator; described method is that screw propeller is installed on elevator, and when elevator was out of control, cage began to quicken under the effect of gravity; when elevator decline reaches certain speed; the speed of screw propeller rotation begins to accelerate, and the screw propeller rotation produces lift, and the direction of the lift that the screw propeller rotation produces is opposite with gravity; slow down the speed that cage glides, thereby protected passenger safety wherein.Because the size and the air resistance of the lift of screw propeller are nonlinear relationships, the big more air resistance of descending speed is big more, and the air resistance rotative speed of king bolt oar more is big more, and the lift of generation is big more.Considering the structure of elevator, generally speaking, is to install on the top at elevator in that screw propeller is installed on the elevator, and it is convenient to be installed in the top, is not easy at ordinary times to damage.
Install on elevator in the guard method of screw propeller at another kind provided by the invention, the quantity of described screw propeller is one or more.Described screw propeller can superpose on same axle, because the area of elevator is limited, it is not enough that the lift that screw propeller produced is installed sometimes, can save area again if a plurality of screw propellers of installation that superpose on same S. A. promptly can increase lift.
Install on elevator in the guard method of screw propeller at another kind provided by the invention, described screw propeller is the rotor slurry.The rotor slurry can not need power, adopts the rotor slurry more reasonable.
The guard method that screw propeller is installed on elevator provided by the invention is compared with existing method and is had the following advantages:
1. reliability height: the present invention is in use without any appliance component, the potential safety hazard that does not exist the inefficacy owing to electric elements to bring;
2. it is low to make simple cost: it is low that screw propeller used in the present invention is made simple cost, easily batch manufacturing.
Description of drawings
Accompanying drawing 1 is a kind of embodiment scheme drawing that the guard method of screw propeller is installed on elevator provided by the invention.
The specific embodiment
With reference to accompanying drawing 1; accompanying drawing 1 is a kind of embodiment scheme drawing that the guard method of screw propeller is installed on elevator provided by the invention: cage 2 links to each other with tractor equipment by haulage cable 1, and screw propeller 3 and 4 is installed on the top of cage 2 by S. A. 5 and 6.Rupture as haulage cable 1 when elevator is out of control; cage 2 vertically drops; at this moment all electric prospections all can't work; along with speeding up of cage 2; screw propeller 3 and 4 begins rotation, and screw propeller 3 and 4 produces lift in rotary course, because the effect of lift has slowed down the speed that descends; thereby reached the lapse rate that reduces cage 2, the passenger in the cage 2 has been played protective effect.
Above described embodiment be that the present invention will be described, be not that the present invention is limited.Design, method and scope that the present invention is claimed all are documented in claims of the present invention.
Claims (5)
1. the guard method that screw propeller is installed on elevator comprises elevator, and it is characterized in that: described method is that screw propeller is installed on elevator; when elevator is out of control; screw propeller begins rotation, and the screw propeller rotation produces and downslide opposite effect power the speed of slowing down lift slide.
2. the guard method that screw propeller is installed on elevator according to claim 1 is characterized in that: described is to install on the top at elevator in that screw propeller is installed on the elevator.
3. the guard method that screw propeller is installed on elevator according to claim 1, it is characterized in that: the quantity of described screw propeller is one or more.
4. the guard method that screw propeller is installed on elevator according to claim 1 is characterized in that: described screw propeller can stack on same axle.
5. the guard method that screw propeller is installed on elevator according to claim 1 is characterized in that: described screw propeller is the rotor slurry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910200788XA CN102107806A (en) | 2009-12-25 | 2009-12-25 | Protecting method for mounting propeller on elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910200788XA CN102107806A (en) | 2009-12-25 | 2009-12-25 | Protecting method for mounting propeller on elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102107806A true CN102107806A (en) | 2011-06-29 |
Family
ID=44172106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910200788XA Pending CN102107806A (en) | 2009-12-25 | 2009-12-25 | Protecting method for mounting propeller on elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102107806A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431860A (en) * | 2011-09-07 | 2012-05-02 | 重庆派腾机械设备有限责任公司 | Lift falling speed self-attenuation device |
| CN106429701A (en) * | 2016-11-24 | 2017-02-22 | 佛山市创联科技有限公司 | Elevator and elevator car device thereof |
| CN109720960A (en) * | 2019-02-25 | 2019-05-07 | 朱爱民 | A kind of cabin elevator emergency safety defense controls platform and control system |
-
2009
- 2009-12-25 CN CN200910200788XA patent/CN102107806A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431860A (en) * | 2011-09-07 | 2012-05-02 | 重庆派腾机械设备有限责任公司 | Lift falling speed self-attenuation device |
| CN106429701A (en) * | 2016-11-24 | 2017-02-22 | 佛山市创联科技有限公司 | Elevator and elevator car device thereof |
| CN109720960A (en) * | 2019-02-25 | 2019-05-07 | 朱爱民 | A kind of cabin elevator emergency safety defense controls platform and control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110629 |