CN109292578B - Sectional type elevator anti-falling system - Google Patents
Sectional type elevator anti-falling system Download PDFInfo
- Publication number
- CN109292578B CN109292578B CN201811383759.7A CN201811383759A CN109292578B CN 109292578 B CN109292578 B CN 109292578B CN 201811383759 A CN201811383759 A CN 201811383759A CN 109292578 B CN109292578 B CN 109292578B
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- elevator
- controller
- braking
- guide rail
- wall
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- 230000001133 acceleration Effects 0.000 claims abstract description 35
- 230000002265 prevention Effects 0.000 claims abstract description 9
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000006698 induction Effects 0.000 abstract description 9
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
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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
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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
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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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
Abstract
The utility model provides a sectional type elevator anti-falling system, includes elevator, guide rail and elevartor shaft, installs a plurality of sets of braking unit subassembly on the elevator and the elevartor shaft wall of a well or the guide rail, and braking unit subassembly from the top down installs in proper order on the elevartor shaft wall of a well or the guide rail, and braking unit includes acceleration measuring apparatu, elevator stopper and controller subassembly, and acceleration measuring apparatu and elevator stopper and controller are fixed respectively on the wall of a well of elevartor shaft, guide rail or elevator. According to the sectional type elevator falling prevention system provided by the invention, the stall condition of an elevator is detected and independent braking is carried out through the mutually independent multiple groups of braking units arranged on the wall of an elevator shaft or a guide rail, and each braking unit acts independently, so that the reliability of the elevator falling prevention system can be greatly improved. The stall induction trigger device fixed on the elevator can independently trigger each group of elevator brakes to start according to a preset value so as to perform emergency braking, and the reliability of the elevator anti-falling system is further improved.
Description
Technical Field
The invention relates to elevator equipment, in particular to a sectional type elevator anti-falling system.
Background
At present, high-rise buildings are increased, elevators are commonly used, but due to the reasons of improper use, untimely maintenance, equipment aging or design defects and the like, the falling accidents of the elevators occur frequently. Although the elevator is provided with the anti-falling device, the elevator is very easy to cause great loss of life and property because the speed limiter and the safety device do not respond timely or fail or the braking device partially fails. The existing elevator falling prevention is that a stall induction device and a falling prevention device are installed on an elevator, one elevator is generally only provided with one set of falling prevention device, and the stall induction trigger device adopts an electronic induction type, so that the elevator falling prevention device is easy to be interfered by the environment, has larger potential safety hazard, and is easy to have accidents when the falling prevention device is not timely responded or is just blocked.
Disclosure of Invention
The invention aims to provide a sectional type elevator anti-falling device so as to improve the reliability of an elevator anti-falling system.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a sectional type elevator falling prevention system comprises an elevator, a guide rail and an elevator shaft, and is characterized in that a plurality of groups of braking units are arranged on the elevator, the wall of the elevator shaft or the guide rail, braking unit assemblies are sequentially arranged on the wall of the elevator shaft from top to bottom, each braking unit comprises an acceleration measuring instrument, an elevator brake and a controller assembly, the acceleration measuring instrument and the elevator brake are respectively fixed on the wall of the elevator shaft or the guide rail, the output end of the acceleration measuring instrument is connected with the input end of a controller, and the output end of the controller is connected with the elevator brake; the acceleration measuring instrument in the braking unit transmits the detected elevator acceleration information to the controller, the controller judges the acceleration value, and when the acceleration value is larger than a preset value, the controller starts each group of elevator brakes to perform emergency braking.
As a further improved technical scheme of the invention, the acceleration measuring instrument is a laser accelerometer.
As a further improved technical scheme of the invention, the brake unit is also provided with an alarm device, the output end of the controller is connected with the input end of the alarm device, and when the controller starts the elevator shaft brake, the alarm device is started simultaneously.
As a further improved technical scheme of the invention, the bottom of the elevator shaft is also provided with an anti-falling well.
As a further improved technical scheme of the invention, the elevator is also provided with a stall induction triggering device.
Compared with the prior art, the invention has the beneficial effects that:
according to the sectional type elevator anti-falling system provided by the invention, the stall condition of an elevator is detected and independent braking is carried out through mutually independent groups of braking units arranged on the wall of an elevator shaft or a guide rail, each braking unit acts independently, other braking units can still brake even if one group of braking units fails, and the probability of simultaneous failure of all the braking units is extremely low, so that the reliability of the elevator anti-falling system is greatly improved; the stall induction trigger device fixed on the elevator can independently trigger each group of elevator brakes to start according to a preset value so as to perform emergency braking, and the reliability of the elevator anti-falling system is further improved.
Drawings
Fig. 1 is a schematic structural diagram of a stall induction triggering device in embodiment 2 of the present invention.
The specific implementation mode is as follows:
example 1
The utility model provides a sectional type elevator anti-falling system, includes elevator, guide rail and elevartor shaft, installs a plurality of sets of brake unit on the elevartor shaft wall of a well, and the brake unit subassembly is installed on elevartor shaft wall of a well or guide rail from the top down in proper order, and brake unit includes components such as acceleration measuring apparatu, elevator stopper and controller, and acceleration measuring apparatu and elevartor shaft stopper are fixed respectively on the wall of a well or the guide rail of elevartor shaft. The acceleration measuring instrument is a laser accelerometer, and the control device is a PLC. The data output end of the acceleration measuring instrument is connected with the data input end of the controller, and the data output end of the controller is connected with the elevator brake; the acceleration measuring instrument in the braking unit transmits the detected elevator acceleration information to the controller, the controller judges the acceleration value, and when the acceleration value is larger than a preset value, the controller starts each group of elevator brakes to perform emergency braking. And the brake unit is also provided with an alarm device, the data output end of the controller is connected with the data input end of the alarm device, and when the controller starts the elevator brake, the alarm device is started to send out an alarm. The sectional type elevator anti-falling system detects the stalling condition of an elevator and performs independent braking through the mutually independent detection of a plurality of groups of braking units arranged on the wall of an elevator shaft, each braking unit acts independently, and other braking units can still perform braking even if one group of braking units breaks down.
Example 2
The utility model provides a sectional type elevator anti-falling system, includes elevator, guide rail and elevartor shaft, installs a plurality of sets of brake cell on the elevartor shaft wall of a well or the guide rail, and the brake cell subassembly from the top down is installed on elevartor shaft wall of a well or guide rail in proper order, and brake cell includes components such as acceleration measuring apparatu, elevartor shaft stopper and controller, and acceleration measuring apparatu and elevator stopper are fixed respectively on the wall of a well or the guide rail of elevartor shaft, still have stall response trigger device on the elevator simultaneously. As shown in fig. 1, the stall induction triggering device is fixed to the elevator 1, and a weight 4 is placed on a compression spring 2 and can move up and down along a guide bar 3 fixed to the frame of the device. When the elevator is lifted normally, the heavy object 4 is not contacted with the internal trigger 5 of the trigger link mechanism. When the elevator stalls and descends, due to the fact that the elevator stalls and descends, the pressure of the heavy object 4 on the compression spring 2 is reduced, the compression spring 2 extends, the heavy object 4 is pushed to move upwards along the guide rod 3, the internal trigger 5 is pushed to drive the connecting rod 6 and further push the external trigger 7 to extend forwards, the braking end of the trigger brake extends towards the elevator shaft or the elevator guide rail, and each group of elevator brakes is triggered to be started or the alarm device is triggered. The predetermined stall acceleration value is adjusted by varying the distance between the weight 4 on the guide bar and the internal trigger 5. The stall induction trigger device fixed on the elevator can independently trigger each group of elevator brakes to start according to a preset value so as to perform emergency braking, and the reliability of the elevator anti-falling system is further improved. The device is mechanical, has safe and reliable structure, is triggered by gravity, does not need external energy, has low possibility of accidental sending and missed sending, and is not interfered by environment electromagnetic interference.
The acceleration measuring instrument is a laser accelerometer, and the control device is a single chip microcomputer. The data output end of the acceleration measuring instrument is connected with the data input end of the controller, and the data output end of the controller is connected with the elevator brake; the acceleration measuring instrument in the braking unit transmits the detected elevator acceleration information to the controller, the controller judges the acceleration value, and when the acceleration value is larger than a preset value, the controller starts each group of elevator brakes to perform emergency braking. And the brake unit is also provided with an alarm device, the data output end of the controller is connected with the data input end of the alarm device, and when the controller starts the elevator brake, the alarm device is started to send out an alarm. The sectional type elevator anti-falling system detects the stalling condition of an elevator and performs independent braking through the mutually independent detection of a plurality of groups of braking units arranged on the wall of an elevator shaft, each braking unit acts independently, and other braking units can still perform braking even if one group of braking units breaks down. In order to further improve the anti-falling effect, an anti-falling well can be additionally arranged at the bottom of the elevator shaft, and the anti-falling method can be carried out together with the original accelerometer and the anti-falling device on the elevator, and the reliability of the anti-falling system can be greatly improved by multiple anti-falling measures.
Claims (1)
1. A sectional type elevator falling prevention system comprises an elevator and an elevator shaft and is characterized in that a plurality of groups of braking units are mounted on the wall of the elevator shaft, braking unit assemblies are sequentially mounted on the wall of the elevator shaft from top to bottom, each braking unit comprises an acceleration measuring instrument, an elevator brake and a controller assembly, the acceleration measuring instrument and the elevator brake are respectively fixed on the wall of the elevator shaft, the output end of the acceleration measuring instrument is connected with the input end of a controller, and the output end of the controller is connected with the elevator brake; an acceleration measuring instrument in the braking unit transmits detected elevator acceleration information to the controller, the controller judges the acceleration value, and when the acceleration value is larger than a preset value, the controller starts each group of elevator brakes to perform emergency braking; the acceleration measuring instrument is a laser accelerometer; the brake unit is also provided with an alarm device, the output end of the controller is connected with the input end of the alarm device, and when the controller starts the elevator shaft brake, the alarm device is started simultaneously; the bottom of the elevator shaft is also provided with an anti-falling well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811383759.7A CN109292578B (en) | 2018-11-20 | 2018-11-20 | Sectional type elevator anti-falling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811383759.7A CN109292578B (en) | 2018-11-20 | 2018-11-20 | Sectional type elevator anti-falling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109292578A CN109292578A (en) | 2019-02-01 |
| CN109292578B true CN109292578B (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811383759.7A Active CN109292578B (en) | 2018-11-20 | 2018-11-20 | Sectional type elevator anti-falling system |
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| CN (1) | CN109292578B (en) |
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| CN110111653B (en) * | 2019-05-14 | 2021-04-06 | 江苏师范大学 | A semi-automatic collection device of steel ball for acceleration of gravity experiment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87214082U (en) * | 1987-10-04 | 1988-10-26 | 杨益文 | Weightlessness type overrunning governor |
| CN101090854A (en) * | 2006-02-01 | 2007-12-19 | 三菱电机株式会社 | Device for elevator |
| CN203269263U (en) * | 2013-06-07 | 2013-11-06 | 吴祥志 | Elevator drop prevention automatic protective device |
| CN104176582A (en) * | 2014-08-12 | 2014-12-03 | 苏州台菱电梯有限公司 | Elevator anti-falling device and application method thereof |
| CN205061235U (en) * | 2015-10-24 | 2016-03-02 | 万帮 | Prevent weighing down safety tongs with autotrigger self -locking function |
-
2018
- 2018-11-20 CN CN201811383759.7A patent/CN109292578B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87214082U (en) * | 1987-10-04 | 1988-10-26 | 杨益文 | Weightlessness type overrunning governor |
| CN101090854A (en) * | 2006-02-01 | 2007-12-19 | 三菱电机株式会社 | Device for elevator |
| CN203269263U (en) * | 2013-06-07 | 2013-11-06 | 吴祥志 | Elevator drop prevention automatic protective device |
| CN104176582A (en) * | 2014-08-12 | 2014-12-03 | 苏州台菱电梯有限公司 | Elevator anti-falling device and application method thereof |
| CN205061235U (en) * | 2015-10-24 | 2016-03-02 | 万帮 | Prevent weighing down safety tongs with autotrigger self -locking function |
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| Publication number | Publication date |
|---|---|
| CN109292578A (en) | 2019-02-01 |
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