CN108373090B - Passenger elevator overspeed governor safety coefficient - Google Patents
Passenger elevator overspeed governor safety coefficient Download PDFInfo
- Publication number
- CN108373090B CN108373090B CN201810149516.0A CN201810149516A CN108373090B CN 108373090 B CN108373090 B CN 108373090B CN 201810149516 A CN201810149516 A CN 201810149516A CN 108373090 B CN108373090 B CN 108373090B
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- Prior art keywords
- car
- elevator
- air bag
- receiving plate
- arc
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/26—Positively-acting devices, e.g. latches, knives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/28—Buffer-stops for cars, cages, or skips
- B66B5/284—Buffer-stops for cars, cages, or skips mounted on cars or counterweights
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention provides a passenger elevator speed limiter safety system which comprises a speed measuring device positioned on the back of a car, wherein the speed measuring device is hinged with a wind receiving plate arranged on the car, springs are fixed at the upper end and the lower end of the wind receiving plate, a magnetic resistance plate is arranged at the free end of the wind receiving plate, a support is arranged on the car, and an eddy current sensor is arranged on the support; the car outside is equipped with the gasbag, the gasbag is including being located the buffer part of terminal surface under the car and being located the friction portion of car lateral part, be equipped with gas generating device and ignition in the gasbag, can detect elevator tenesmus and other unusual activity condition to can slow down the car.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to a passenger elevator speed limiter safety system.
Background
An elevator is a vertical elevator powered by an electric motor and used for carrying people or goods in a multi-story building. The elevator is used in the multi-storey building, and can be used for convenient intercommunication upper and lower aspect, carries out the transportation of personnel's goods. The elevator car is being pulled by the cable wire and is moving up and down along perpendicular well under the drive of lift at the during operation, in case the elevator car is at the in-process that the cable wire was pulled, the fracture appears in the cable wire, and the danger that the elevator will drop appears for personnel or goods in the elevator car are in dangerous state, consequently every elevator all need design special anti-falling device when the design.
The traditional anti-falling device is characterized in that a mechanical structure is adopted, and when an elevator rapidly falls, a safety gear on an elevator car can extend out to tightly grasp an elevator guide rail, so that the elevator is decelerated and stopped. The structure is not suitable for the existing more and more super high-rise fast elevators, the safety gear of the elevator car has higher requirements on the assembly of the safety gear and the use materials of the safety gear due to the higher speed when the elevator is stopped, and once the safety gear cannot be opened in time when the elevator falls, the elevator car generates larger impulse, so that the elevator is difficult to stop, and the potential safety hazard is larger.
Disclosure of Invention
The invention provides a passenger elevator speed limiter safety system which can detect elevator falling and other abnormal activities and can decelerate a lift car.
In order to achieve the purpose, the invention adopts the following technical scheme:
a passenger elevator governor safety system characterized by: the elevator car speed measurement device comprises a speed measurement device positioned on the back of a car, wherein the speed measurement device is hinged to a wind receiving plate arranged on the car, springs are fixed at the upper end and the lower end of the wind receiving plate, a magnetic resistance plate is arranged at the free end of the wind receiving plate, a support is arranged on the car, and an eddy current sensor is arranged on the support; the car outside is equipped with the gasbag, the gasbag is including being located the buffer portion of terminal surface under the car and being located the friction portion of car lateral part, be equipped with gas generator and ignition in the gasbag.
Preferably, a battery is arranged at the top end of the car and electrically connected with the eddy current sensor.
Preferably, guide grooves are formed in the lower end and the side end of the car, adjacent guide grooves are separated by rib plates, and the airbag in an uninflated state is arranged in each guide groove.
Preferably, the car top is provided with an electronic controller, and the electronic controller is electrically connected with the ignition device.
Preferably, arc-shaped grooves are uniformly formed in the inner side wall of the elevator shaft in the area corresponding to the air bags, and arc-shaped protrusions are arranged on the outer side surface of the air bags.
Preferably, the arc-shaped protrusions are nitrile rubber particles.
In summary, compared with the prior art, the invention has the advantages that: when the elevator falls, wind passing through the space between the rear side of the elevator and the side wall of the elevator shaft acts on the wind receiving plate to generate certain deformation deflection, when the posture of the elevator car abnormally changes, the wind receiving plate also deforms to cause the change of the distance between the magnetic resistance plate and the eddy current sensor, when the distance between the magnetic resistance plate and the eddy current sensor is smaller than a specified value, the air bag expands to rub against the inner side wall of the elevator shaft to reduce the speed of the elevator car, and the air bag positioned at the bottom of the elevator car plays a role in buffering; the elevator safety device is matched with the safety gear for use, so that the falling speed of the elevator is reduced when the elevator falls, and the safety gear is ensured to work smoothly; when suffering accidental impact, can stabilize the elevator gesture and stop the operation, avoid leading to dangerous result.
Drawings
FIG. 1 is a side view of the structure of the present invention;
fig. 2 is a bottom view of the structure of the present invention.
The reference numbers in the figures are as follows:
1. the car, 2, the speed measuring device, 21, the air receiving plate, 22, the spring, 23, the magnetic resistance plate, 24, the eddy current sensor, 3, the air bag, 31, the buffer part, 32, the friction part, 4, the battery, 5, the guide groove, 6, the rib plate and 7, the arc-shaped groove.
Detailed Description
The invention will be further elucidated with reference to an embodiment in the drawing.
As shown in fig. 1 and 2, the passenger elevator speed limiter safety system comprises a speed measuring device 2 located on the back of a car 1, wherein the speed measuring device 2 is hinged to an air receiving plate 21 arranged on the car 1, springs 22 are fixed at the upper end and the lower end of the air receiving plate 21, a magnetic resistance plate 23 is arranged at the free end of the air receiving plate 21, a support is arranged on the car 1, and an eddy current sensor 24 is arranged on the support. When the elevator falls, wind passing through the space between the rear side of the elevator and the side wall of the elevator shaft acts on the wind receiving plate 21 to generate certain deformation deflection, and when the posture of the elevator car 1 is abnormally changed, the wind receiving plate 21 is also deformed to change the distance between the magnetic resistance plate 23 and the eddy current sensor 24. An airbag 3 is provided outside the car 1, the airbag 3 includes a cushion portion 31 located on a lower end surface of the car 1 and a friction portion 32 located on a side portion of the car 1, and a gas generating device and an ignition device are provided in the airbag 3. When the distance between the magnetic resistance plate 23 and the eddy current sensor 24 is smaller than a specified value, the air bag 3 expands and rubs with the inner wall of the elevator shaft to reduce the speed of the elevator car 1, and the air bag 3 positioned at the bottom of the elevator car 1 plays a role in buffering. The top end of the car 1 is provided with a battery 4, and the battery 4 is electrically connected with the eddy current sensor 24. An electronic controller is arranged at the top of the lift car 1 and is electrically connected with the ignition device.
The lower end and the side end of the lift car 1 are provided with vertical guide grooves 5, adjacent guide grooves 5 are separated by rib plates 6, and the guide grooves 5 are internally provided with air bags 3 in an uninflated state. The direction of gasbag 3 when expanding has been restricted to guide way 5, has guaranteed pressure and frictional force between its and the elevartor shaft lateral wall, guarantees the buffering effect when the elevator falls to the bottom simultaneously.
The region corresponding to the air bag 3 on the inner side wall of the elevator shaft is evenly provided with an arc-shaped groove 7, and the surface of the outer side of the air bag 3 is provided with an arc-shaped bulge. The fit between the grooves and the protrusions greatly increases the friction between the inner wall of the elevator shaft and the air bag 3. The arc-shaped bulges are made of butadiene-acrylonitrile rubber particles so as to ensure the service life of the arc-shaped bulges.
The above description is only for explaining the present invention and making the present invention complete, but not limiting the present invention, and the skilled in the art can make modifications without inventive contribution to the present embodiment as required after reading the present specification, and these are all modifications without inventive contribution, but are protected by patent laws within the scope of the claims of the present invention.
Claims (1)
1. A passenger elevator governor safety system characterized by: the elevator car speed measurement device comprises a speed measurement device (2) located on the back of a car (1), wherein the speed measurement device (2) is hinged to an air receiving plate (21) arranged on the car (1), springs (22) are fixed at the upper end and the lower end of the air receiving plate (21), a magnetic resistance plate (23) is arranged at the free end of the air receiving plate (21), a support is arranged on the car (1), and an eddy current sensor (24) is arranged on the support; an air bag (3) is arranged on the outer side of the car (1), the air bag (3) comprises a buffer part (31) positioned on the lower end face of the car (1) and a friction part (32) positioned on the side part of the car (1), and a gas generating device and an ignition device are arranged in the air bag (3);
arc-shaped grooves (7) are uniformly formed in the inner side wall of the elevator shaft in the area corresponding to the air bag (3), arc-shaped protrusions are arranged on the outer side surface of the air bag (3), and the arc-shaped protrusions are made of butadiene-acrylonitrile rubber particles;
a battery (4) is arranged at the top end of the car (1), the battery (4) is electrically connected with the eddy current sensor (24), an electronic controller is arranged at the top of the car (1), and the electronic controller is electrically connected with the ignition device;
the car is characterized in that guide grooves (5) are formed in the lower end and the side end of the car (1), the adjacent guide grooves (5) are separated by rib plates (6), and the air bag (3) in an uninflated state is arranged in the guide grooves (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810149516.0A CN108373090B (en) | 2018-02-13 | 2018-02-13 | Passenger elevator overspeed governor safety coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810149516.0A CN108373090B (en) | 2018-02-13 | 2018-02-13 | Passenger elevator overspeed governor safety coefficient |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108373090A CN108373090A (en) | 2018-08-07 |
| CN108373090B true CN108373090B (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810149516.0A Active CN108373090B (en) | 2018-02-13 | 2018-02-13 | Passenger elevator overspeed governor safety coefficient |
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| Country | Link |
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| CN (1) | CN108373090B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101973474A (en) * | 2010-11-08 | 2011-02-16 | 日立电梯(上海)有限公司 | Elevator overspeed protective device |
| CN105223378A (en) * | 2015-08-25 | 2016-01-06 | 南车青岛四方机车车辆股份有限公司 | A kind of vehicle speed measurement system for bullet train and method |
| CN106698140A (en) * | 2017-02-05 | 2017-05-24 | 六安永贞匠道机电科技有限公司 | Elevator falling protector |
| CN206188151U (en) * | 2016-08-11 | 2017-05-24 | 广东皇冠电梯有限公司 | High strength safety protection elevator |
-
2018
- 2018-02-13 CN CN201810149516.0A patent/CN108373090B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101973474A (en) * | 2010-11-08 | 2011-02-16 | 日立电梯(上海)有限公司 | Elevator overspeed protective device |
| CN105223378A (en) * | 2015-08-25 | 2016-01-06 | 南车青岛四方机车车辆股份有限公司 | A kind of vehicle speed measurement system for bullet train and method |
| CN206188151U (en) * | 2016-08-11 | 2017-05-24 | 广东皇冠电梯有限公司 | High strength safety protection elevator |
| CN106698140A (en) * | 2017-02-05 | 2017-05-24 | 六安永贞匠道机电科技有限公司 | Elevator falling protector |
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| Publication number | Publication date |
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| CN108373090A (en) | 2018-08-07 |
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