CN204778143U - Device for preventing elevator from falling - Google Patents
Device for preventing elevator from falling Download PDFInfo
- Publication number
- CN204778143U CN204778143U CN201520455059.XU CN201520455059U CN204778143U CN 204778143 U CN204778143 U CN 204778143U CN 201520455059 U CN201520455059 U CN 201520455059U CN 204778143 U CN204778143 U CN 204778143U
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- Prior art keywords
- elevator
- rotating shaft
- falling
- brake equipment
- preventing
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Abstract
The utility model provides a device for preventing elevator from falling includes elevator body, main steel cable, car guide and elevartor shaft at least, still includes controller, vice steel cable, arresting gear and is used for detecting elevator falling speed's detection device, the utility model discloses a steel cable rope is connected with the elevator to at fixed arresting gear at the elevartor shaft top, the hawser receive and releases in step about the elevator is normal the time, does not influence normal operating, dies cable rope lock when too fast when detecting the elevator speed of falling, is unlikely to the whereabouts at the excessive speed and lead to because inertial motion and make humanly and the box contacts the accident of causing danger, and this practicality has still disposed a stand -by power supply, effectually prevent that outage suddenly from leading to unable work, the utility model discloses the principle is simple, and the security is high, and the effectual elevator that prevents falls suddenly because of what a variety of causes leaded to, has guaranteed people's the security of the lives and property.
Description
Technical field
The utility model relates to electro-mechanical arts, particularly relates to a kind of device for preventing elevator from falling.
Background technology
Along with China's expanding economy, the step of Process of Urbanization Construction is more and more faster, and the land resources in many cities is more and more nervous, skyscraper also gets more and more, and railway and highway system is faced with acid test especially, therefore, elevator, as a kind of vehicle of skyscraper, is indispensable.Although elevator has many good qualities, also many conveniences have been brought, but in the process of elevator vertical lift, major part elevator all lacks safety guard, because the weight of elevator load sometimes can be very large, particularly in the moment that goods turnover car or car are elevated, strong impulsive force can be produced to elevator, and act directly on the brake gear of elevator, used during elevator falling may be caused, in recent years, the accident much occurred in elevator is of common occurrence, the reason of such accident is caused to have a lot, the wearing and tearing of traction sheave grooving, the lubricating oil be out of shape and cable wire is adhered is too much, cable wire can be made to skid in grooving, thus cause traction to decline, car is fallen, also some situation is because elevator is overweight, cause cables break, car is fallen cause the accident.
In prior art, the falling proof device of usual employing bolt-type, bolt-type falling proof device is by the degree of freedom of latch restriction car in the vertical direction, it is made to maintain vacant state, the utility model of application number 200720130048.X discloses a kind of bolt-type falling proof device carrying out improving, but there is certain defect in bolt-type falling proof device, such as latch degree of freedom in the horizontal direction is not restricted, stable not under causing it in working order, once latch marks from lockhole, major accident will be there is, and complex structure, the positioning precision of requirement system is high, easily break down, safeguard also inconvenient, the utility model of application number 201020216692.0 discloses a kind of vertical lift type parking equipment with anti-drop function, the wire holder be arranged on elevator folder is utilized to clamp anti-fall steel rope, used during elevator falling can be placed, but the degree of tightness of wire holder is difficult to control, once wire holder relaxes, anti-fall steel rope just comes off, elevator also can fall.
Utility model content
In view of this, the utility model provides a kind of device for preventing elevator from falling, to solve the problem.
The device for preventing elevator from falling that the utility model provides, comprises elevator body, jackstay, car guide rail and elevator, it is characterized in that: also comprise controller, secondary wirerope, brake equipment and the detecting device for detecting elevator descending speed;
The mouth of described detecting device is connected with the input end of controller, and described controller is connected with brake equipment;
Described brake equipment comprises housing and rotating shaft, described rotating shaft is through housing, described rotating shaft passes housing parts and is provided with roller, described roller and rotating shaft be fixing also synchronous axial system coaxially, described secondary wirerope is connected with car by roller, described rotating shaft is provided with the baffle plate for countershaft braking at housing inner portion, is full of magnetic flow liquid in described housing, and described brake equipment is provided with and makes magnetic flow liquid produce the excitation coil of dumping force for generation of electromagnetic field.
Further, described brake equipment is fixedly installed on elevator top.
Further, described controller is micro controller system.
Further, the two ends of described rotating shaft are all through described housing.
Further, the rotating shaft two ends passing housing described in are respectively equipped with roller.
Further, described rotating shaft and roller one-body molded.
Further, described baffle plate is multi-disc, and is evenly arranged in the circumferencial direction of rotating shaft.
Further, described brake equipment enclosure interior is provided with the sealing arrangement for preventing magnetic flow liquid from overflowing.
Further, also comprise for the backup power of detecting device, controller and brake equipment emergency service.
The beneficial effects of the utility model: the utility model adopts steel cable to be connected with elevator, and fix a brake equipment at elevator top, the synchronous folding and unfolding of hawser when elevator is normally upper and lower, do not affect normal operation, when used during elevator falling excessive velocities being detected, hawser is locked, rapidly corresponding, be unlikely to fall too fast and cause making due to inertia motion human body contact with casing and have an accident; And this practicality is also configured with a backup power, actv. prevents unexpected power-off from causing working, and the utility model principle is simple, and safety is high, and what actv. prevented elevator from causing because of a variety of causes falls suddenly, ensure that the security of the lives and property of people.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is principle schematic of the present utility model.
Fig. 2 is the structural representation of brake equipment of the present utility model.
Detailed description of the invention
Be further described the utility model below in conjunction with drawings and Examples: Fig. 1 is principle schematic of the present utility model, Fig. 2 is the structural representation of brake equipment of the present utility model.
The device for preventing elevator from falling that the utility model provides, comprises elevator body, jackstay, car guide rail and elevator, also comprises controller, secondary wirerope, brake equipment and the detecting device for detecting elevator descending speed; The mouth of described detecting device is connected with the input end of controller, and described controller is connected with brake equipment; Described brake equipment comprises housing 2 and rotating shaft 1, described rotating shaft 1 is through housing 2, described rotating shaft 1 passes housing 2 part and is provided with roller 5, described roller 5 fixing also synchronous axial system coaxial with rotating shaft 1, described secondary wirerope is connected with car by roller 5, described rotating shaft 1 is provided with the baffle plate 6 for countershaft braking at housing 2 interior section, is full of magnetic flow liquid 4 in described housing 2, and described brake equipment is provided with and makes magnetic flow liquid produce the excitation coil 3 of dumping force for generation of electromagnetic field.When detecting device detects lift car descending speed, and by signal transmission to controller, when lift car descending speed is normal, excitation coil 3 no power, the characteristic of the magnetic flow liquid 4 one-tenth high flow of brake equipment housing 2 inside, secondary wirerope and jackstay are synchronized with the movement, and can not affect the normal work of elevator, when detecting that the descending speed of elevator is too fast, controller is to brake equipment sending controling instruction, control excitation coil 3 to be energized, generate an electromagnetic field, magnetic flow liquid is under strong magnetic field action, then present heavy body, the characteristic of lazy flow, present a kind solid property, the rotating shaft of enclosure interior is provided with baffle plate, baffle plate 6 is under the effect of the dumping force of magnetic rheological liquid, rotating shaft 1 is stopped the rotation, due to rotating shaft 1 and roller 5 synchronous axial system, therefore after rotating shaft 1 stops operating, control roller 5 also no longer to rotate, in the present embodiment, described secondary wirerope can only could drive elevator cab movement under the rotation of roller 5, when roller 5 stop motion, secondary wirerope can not autonomous travel, thus make lift car stop declining, reach the object preventing elevator from falling suddenly.
In the present embodiment, brake equipment is fixedly installed on elevator top.Preferably, the two ends of rotating shaft 1 are all through described housing 2, and rotating shaft 1 two ends passing housing 2 are respectively equipped with roller 5, and rotating shaft 1 is one-body molded with roller 5.This structure can make the structure of brake equipment compacter, and the outside two ends of rotating shaft 1 can connect two secondary wireropes respectively, and the effect of fall arrest is improved.
In the present embodiment, controller adopts micro controller system, and other components and parts also can be adopted to substitute, and as CPU, arm processor, CPLD chip etc., realize above-mentioned function, those skilled in the art can obtain easily, again repeat no more.
In the present embodiment, baffle plate 6 is multi-disc, and be evenly arranged in the circumferencial direction of rotating shaft, 2 can be selected to be symmetrical arranged, also can select more than 3, preferably, in the present embodiment, adopt 4 baffle plates, be evenly distributed on the circumferencial direction of rotating shaft, the rear dumping force of magnetic flow liquid energising can be increased by actv..
In the present embodiment, brake equipment enclosure interior is provided with the sealing arrangement for preventing magnetic flow liquid from overflowing, and can adopt the sealing means such as seal ring or rubber seal, flows out for preventing the magnetic flow liquid of enclosure interior.
In the present embodiment, also comprise for the backup power of detecting device, controller and brake equipment emergency service, adopt the mode of separately power supply can avoid the generation of the used during elevator falling situation caused due to power supply reason by actv., backup power independently-powered under, the working stability of detecting device, controller and brake equipment can be ensured.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (9)
1. a device for preventing elevator from falling, at least comprises elevator body, jackstay, car guide rail and elevator, it is characterized in that: also comprise controller, secondary wirerope, brake equipment and the detecting device for detecting elevator descending speed;
The mouth of described detecting device is connected with the input end of controller, and described controller is connected with brake equipment;
Described brake equipment comprises housing and rotating shaft, described rotating shaft is through housing, described rotating shaft passes housing parts and is provided with roller, described roller and rotating shaft be fixing also synchronous axial system coaxially, described secondary wirerope is connected with car by roller, described rotating shaft is provided with the baffle plate for countershaft braking at housing inner portion, is full of magnetic flow liquid in described housing, and described brake equipment is provided with and makes magnetic flow liquid produce the excitation coil of dumping force for generation of electromagnetic field.
2. device for preventing elevator from falling according to claim 1, is characterized in that: described brake equipment is fixedly installed on elevator top.
3. device for preventing elevator from falling according to claim 1, is characterized in that: described controller is micro controller system.
4. device for preventing elevator from falling according to claim 1, is characterized in that: the two ends of described rotating shaft are all through described housing.
5. device for preventing elevator from falling according to claim 4, is characterized in that: described in pass housing rotating shaft two ends be respectively equipped with roller.
6. the device for preventing elevator from falling according to the arbitrary claim of claim 1-5, is characterized in that: described rotating shaft and roller one-body molded.
7. device for preventing elevator from falling according to claim 1, is characterized in that: described baffle plate is multi-disc, and is evenly arranged in the circumferencial direction of rotating shaft.
8. device for preventing elevator from falling according to claim 1, is characterized in that: described brake equipment enclosure interior is provided with the sealing arrangement for preventing magnetic flow liquid from overflowing.
9. device for preventing elevator from falling according to claim 1, is characterized in that: also comprise for the backup power of detecting device, controller and brake equipment emergency service.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520455059.XU CN204778143U (en) | 2015-06-29 | 2015-06-29 | Device for preventing elevator from falling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520455059.XU CN204778143U (en) | 2015-06-29 | 2015-06-29 | Device for preventing elevator from falling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204778143U true CN204778143U (en) | 2015-11-18 |
Family
ID=54518235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520455059.XU Expired - Fee Related CN204778143U (en) | 2015-06-29 | 2015-06-29 | Device for preventing elevator from falling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204778143U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105398907A (en) * | 2015-12-28 | 2016-03-16 | 陈勇 | Overspeed automatic speed reducing device of elevator box fall preventing device |
| CN105819303A (en) * | 2016-05-27 | 2016-08-03 | 重庆工商职业学院 | Self-adaption damping elevator well damping assembly |
| CN106115432A (en) * | 2016-08-31 | 2016-11-16 | 江苏创力电梯部件有限公司 | A kind of emergency staircase of compact conformation |
| CN107000989A (en) * | 2014-12-17 | 2017-08-01 | 因温特奥股份公司 | Roller guide device for lift car |
| CN110861991A (en) * | 2019-11-14 | 2020-03-06 | 徐蒙 | Emergency anti-falling system for building construction elevator |
-
2015
- 2015-06-29 CN CN201520455059.XU patent/CN204778143U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107000989A (en) * | 2014-12-17 | 2017-08-01 | 因温特奥股份公司 | Roller guide device for lift car |
| CN105398907A (en) * | 2015-12-28 | 2016-03-16 | 陈勇 | Overspeed automatic speed reducing device of elevator box fall preventing device |
| CN105819303A (en) * | 2016-05-27 | 2016-08-03 | 重庆工商职业学院 | Self-adaption damping elevator well damping assembly |
| CN106115432A (en) * | 2016-08-31 | 2016-11-16 | 江苏创力电梯部件有限公司 | A kind of emergency staircase of compact conformation |
| CN110861991A (en) * | 2019-11-14 | 2020-03-06 | 徐蒙 | Emergency anti-falling system for building construction elevator |
| CN112573321A (en) * | 2019-11-14 | 2021-03-30 | 徐蒙 | Emergency anti-falling system and method for building construction elevator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20160629 |