CN107934714A - A kind of elevator drop preventer - Google Patents
A kind of elevator drop preventer Download PDFInfo
- Publication number
- CN107934714A CN107934714A CN201711164245.8A CN201711164245A CN107934714A CN 107934714 A CN107934714 A CN 107934714A CN 201711164245 A CN201711164245 A CN 201711164245A CN 107934714 A CN107934714 A CN 107934714A
- Authority
- CN
- China
- Prior art keywords
- elevator
- well
- lift car
- lift
- buffer well
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- 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
Landscapes
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention discloses a kind of elevator drop preventer, including apparatus for controlling elevator, elevator, lift car, the elevator includes lift well, buffer well, elevator shaft when lift well works normally for elevator, buffer well is arranged on the below ground of the building bottom, the underface of lift well, the Internal periphery sealing of the outer contour and buffer well of lift car coordinates, and bottom, the top of lift car are provided with exhaust outlet a.Lift car drops down onto the bottom of lift well and stops under normal circumstances, and when used during elevator falling occurs, lift car is fallen into buffer well under effect of inertia, and the air in buffer well, which is compressed, to lift car slow down until speed is zero.
Description
Technical field
The present invention relates to elevator safety devices technical field, more particularly to a kind of elevator drop preventer.
Background technology
As skyscraper is continuously increased, elevator has become essential instrument in people's life, and elevator is convenient, fast
Victory, can save muscle power.Although elevator technology comparative maturity, performance is also fairly perfect, and security risk still remains, various electricity
Terraced accident emerges in an endless stream, and causes very big injury and economic loss.
In elevator accident, particularly elevator falls suddenly, and the injury to personnel is maximum, and existing lift car bottom is provided with
Buffer unit, elevator there are also installed hard spacing between every floor, and certain buffering can be provided when lift car falls
Effect, but the cushioning effect of above device is limited, and the acceleration that lift car can not fall in many cases is reduced to peace
Complete horizontal, resident takes elevator and still has certain risk.Especially by the mode reduction of speed of hard spacing collision, to human body
Injury is very big.
During used during elevator falling, what human body was had an impact is acceleration.At the earth's surface, human body is in gravity, 1g's
Normal weight is shown under the action of power.The maximum acceleration of gravity that people's physical efficiency is born is 31.25g.When roller-coaster dive and
When lower, people only bears 5 times of acceleration of gravity, will dizzy, nausea.The maximum record that people bears acceleration of gravity is
31.25g, it is 14~15g that people, which bears acceleration of gravity and still maintains within more than ten seconds the record of very clear-headed, a bit impunity,.If not
If trained, it will generally lose consciousness when 6g is born.The safe acceleration of rocket launching is established as 3g.
In conclusion how in the case of any height of fall, the acceleration during elevator landing can be controlled in 3g
Within, it is the key issue for solving elevator safety.Existing elevator falling prevention device can not realize the requirement.
According to the conservation of energy：1/2mv2=mgh1=mah2, wherein v is maximal rate when used during elevator falling lands, and g attaches most importance to
Power acceleration, a are decelerated to the average acceleration of quiescing process, h by maximal rate when being elevator landing1For the height that falls of elevator
Degree, h2For the deceleration height of elevator.Therefore if the acceleration during controlling elevator landing must assure that h within 3g2>
h1/3。
The content of the invention
The present invention cannot be fully solved the problem of falling danger for existing elevator safety facility, and it is anti-fall to develop a kind of elevator
Fall system, which can be reduced to level of security, effective guarantee in used during elevator falling by elevator acceleration
People take the safety of elevators.
The present invention solve technical problem technical solution be：On the one hand, the embodiment provides a kind of elevator to prevent
Arrest systems, including apparatus for controlling elevator, elevator, lift car, the elevator include lift well, buffer well, lift well
Elevator shaft when being worked normally for elevator, buffer well are arranged on the below ground of the building bottom, the underface of lift well, electricity
The Internal periphery sealing of the outer contour and buffer well of terraced carriage coordinates, and bottom, the top of lift car are provided with exhaust outlet a.
Lift car drops down onto the bottom of lift well and stops under normal circumstances, when used during elevator falling occurs, lift car
Fallen under effect of inertia in buffer well, the air in buffer well, which is compressed, to lift car slow down until speed is zero.
Provide that maximum safe acceleration of the lift car in buffer well moderating process is g, in the case of elevator car loading maximum
It is limiting case when falling at the top of lift well.Optimum efficiency is：After lift car enters buffer well, acceleration reduced before this
Decrease speed to zero lift car this moment reaches maximum, then reduce speed now to speed be zero at this time lift car just drop down onto
The bottom of buffer well.It is required that the aperture area of exhaust outlet a meets requirements above, opening is excessive, and lift car drops down onto buffer well bottom
During portion, speed cannot be down to zero；Too small openings, then lift car do not drop down onto buffering bottom, speed is just down to zero, and elevator car
Peak acceleration of the railway carriage or compartment in buffer well moderating process is more than g, can be drawn by simulated experiment or founding mathematical models.
As an optimization, the stroke of the buffer well is more than 1/3rd of lift well stroke.
As an optimization, the bottom of the buffer well is provided with exhaust outlet b, and exhaust outlet b connects air, row by vent line
Hermatic door is provided with gas port b.
As an optimization, the exhaust outlet a positions are provided with open controller, the control port connection elevator of open controller
Control system.The speed detection sensor that can be carried by existing elevator device, detects the decrease speed of lift car, so as to be
The control of open controller provides foundation.
As an optimization, the open controller includes electric pushrod a, shutter, and electric pushrod a is installed on lift car
On, for shutter on the push rod of electric pushrod a, shutter is corresponding with exhaust outlet a, the control port connection of electric pushrod a
Apparatus for controlling elevator.
As an optimization, the anti-falling safe elevator further includes support plate, and support plate is arranged on the top of buffer well, support
The upper and lower surface of plate is both provided with buffer unit, and the lower section of support plate, the side wall of buffer well are provided with urgent shrapnel, urgent shrapnel
Control device is correspondingly arranged on, the contact surface of urgent shrapnel and lift car is provided with pressure sensor, the control of control device
Port, the data port connection apparatus for controlling elevator of pressure sensor.
As an optimization, the buffer unit is brute spring.
As an optimization, the control device includes plug-type dead point folder, electric pushrod b, and urgent shrapnel is installed by shaft
On the side wall of buffer well, control device is installed on the top of exterior, the urgent shrapnel of buffer well, the push-pull rod of plug-type dead point folder
The one end being located at urgent shrapnel outside buffer well is corresponding, the telescopic rod of the control-rod connection electric pushrod b of plug-type dead point folder,
The control port connection apparatus for controlling elevator of electric pushrod b.During elevator normal use, the push-pull rod of plug-type dead point folder stretches out simultaneously
It is located at the end thereof contacts outside elevator with urgent shrapnel, urgent shrapnel plays lift car into horizontality, urgent shrapnel
Supporting role, when used during elevator falling occurs, the push-pull rod of plug-type dead point folder is withdrawn, and urgent shrapnel upset, lift car just exists
Elevator declines.
As an optimization, it is provided with guide groove between the lift car, elevator.
As an optimization, it is provided with sealing ring between the lift car, elevator.
The effect provided in the content of the invention is only the effect of embodiment, rather than whole effects that invention is all, above-mentioned
Technical solution has the following advantages that or beneficial effect：
1. lift car drops down onto the bottom of lift well and stops under normal circumstances, when used during elevator falling occurs, elevator car
Railway carriage or compartment is fallen into buffer well under effect of inertia, and the air in buffer well, which is compressed, to lift car slow down until speed is
Zero.
2. the stroke by setting buffer well is more than 1/3rd of lift well stroke, lift car slows down in buffer well
Acceleration can be controlled within g, therefore elevator acceleration can be reduced to level of security, effective guarantee in used during elevator falling
People take the safety of elevator.
3. by setting vent line, barrier will not be piled up in vent line, enters lift car from vent line, side
Just sue and labour.
4. by setting open controller, the control to exhaust velocity is realized, it is achieved thereby that adding to lift car
Speed control, when lift car has just enter into buffer well, exhaust outlet minimum is even switched off, when the acceleration of lift car drops to zero
Reduce speed now, when acceleration increases to safety critical scope, control exhaust outlet to increase by open controller, so as to efficiently use
The stroke space of buffer well, reduces cost of manufacture.
5. being both provided with buffer unit by setting support plate, and in the upper and lower surface of support plate, then lift car drops down onto
Support plate, support plate can play decelerating effect during dropping down onto buffering bottom, and more feasible sides are provided for elevator reduction of speed
Case, has ensured that elevator is safe to use.When used during elevator falling situation occurs, the pressure that pressure sensor detects is normal more than elevator
Pressure during decline, apparatus for controlling elevator cancel supporting role of the urgent shrapnel to lift car by control device.
6. by setting guide groove, make movement of the lift car in elevator according to steady.
7. by setting sealing ring, the air that elevator is located at below lift car is set to be discharged from exhaust outlet, effectively
The effect of reduction of speed is ensured.
Brief description of the drawings
Fig. 1 is the overall construction drawing of an embodiment of the present invention perspective.
Fig. 2 is the partial enlarged view in Fig. 1 E regions.
Fig. 3 is overall construction drawing when an embodiment of the present invention is just put.
Fig. 4 is the front view of an embodiment of the present invention.
Fig. 5 is sectional views of the Fig. 4 along B-B directions.
Fig. 6 is that the present invention is inverted and hides the overall construction drawing after vent line.
Fig. 7 is the partial enlarged view in Fig. 6 F regions.
Fig. 8 is the overall construction drawing of lift car.
Embodiment
In order to the technical characterstic of clear explanation this programme, below by embodiment, and its attached drawing is combined, to this
Invention is described in detail.Following disclosure provides many different embodiments or example is used for realizing the different knots of the present invention
Structure.In order to simplify disclosure of the invention, hereinafter the component and setting of specific examples are described.In addition, the present invention can be with
Repeat reference numerals and/or letter in different examples.This repetition is that for purposes of simplicity and clarity, itself is not indicated
Relation between various embodiments are discussed and/or are set.It should be noted that illustrated component is not necessarily to scale in the accompanying drawings
Draw.Present invention omits the description to known assemblies and treatment technology and process to avoid the present invention is unnecessarily limiting.
Fig. 1 to Fig. 8 is a kind of embodiment of the present invention, as shown in the figure, a kind of elevator drop preventer, including elevator controlling
System, elevator 1, lift car 2, the elevator 1 include lift well 102, buffer well 103, and lift well 102 is normal for elevator
Elevator shaft during work, buffer well 103 are arranged on the below ground of the building bottom, the underface of lift well 102, elevator car
The outer contour in railway carriage or compartment 2 and the Internal periphery sealing of buffer well 103 coordinate, and bottom, the top of lift car 2 are provided with exhaust outlet a201.
Lift car 2 drops down onto the bottom of lift well 102 and stops under normal circumstances, and when used during elevator falling occurs, lift car 2 is used
Property effect under fall into buffer well 103, the air in buffer well 103 compressed to lift car 2 carries out slow down until speed be
Zero.Provide that maximum safe acceleration of the lift car 2 in 103 moderating process of buffer well is 3g, when 2 load-carrying of lift car is maximum
In the case of be limiting case when falling from the top of lift well 102.Optimum efficiency is：Lift car 2 enters buffer well 103
Afterwards, acceleration is reduced to the decrease speed of zero lift car 2 this moment and reaches maximum before this, then reduce speed now to speed be zero this
When lift car 2 just drop down onto the bottom of buffer well 103.It is required that the aperture area of exhaust outlet a201 meets requirements above, opening
Excessive, when lift car 2 drops down onto 103 bottom of buffer well, speed cannot be down to zero；Too small openings, then lift car 2 do not drop down onto
103 bottom of buffer well, speed is just down to zero, and peak acceleration of the lift car 2 in 103 moderating process of buffer well is more than
3g, can be drawn by simulated experiment or founding mathematical models.
Exhaust outlet a201 is provided with the web plate of ventilation.
The stroke of the buffer well 103 is more than 1/3rd of 102 stroke of lift well.By the row for setting buffer well 103
Journey be more than 102 stroke of lift well 1/3rd, the acceleration that lift car 2 slows down in buffer well 103 can be controlled in 3g with
Interior, therefore elevator acceleration can be reduced to level of security in used during elevator falling, effective guarantee people take the safety of elevators.
The bottom of the buffer well 103 is provided with exhaust outlet b101, and exhaust outlet b101 connects air by vent line 7,
Hermatic door is provided with exhaust outlet b101.Barrier will not be piled up in vent line, is conveniently sued and laboured.
The exhaust outlet a201 positions are provided with open controller 6, the control port connection elevator controlling of open controller 6
System.By setting open controller 6, the control to exhaust velocity is realized, it is achieved thereby that the acceleration to lift car
Control, when lift car 2 has just enter into buffer well 103,101 minimum of exhaust outlet is even switched off, when the acceleration of lift car 2 declines
Reduce speed now to zero, when acceleration increases to safety critical scope, control exhaust outlet 101 to increase by open controller 6, so that
The stroke space of buffer well 103 is efficiently used, reduces cost of manufacture.It can be sensed by the velocity measuring that existing elevator device carries
Device, detects the decrease speed of lift car 2, so that the control for open controller 6 provides foundation.
As shown in figure 5, the open controller 6 includes electric pushrod a601, shutter 602, electric pushrod a601 installations
On lift car 2, for shutter 602 on the push rod of electric pushrod a601, shutter 602 is corresponding with exhaust outlet a201,
The control port connection apparatus for controlling elevator of electric pushrod a601.
The anti-falling safe elevator further includes support plate 3, and support plate 3 is arranged on the top of buffer well 103, support plate 3
Upper and lower surface be both provided with buffer unit, the lower section of support plate 3, the side wall of buffer well 103 are provided with urgent shrapnel 4, promptly
Shrapnel 4 is correspondingly arranged on control device 5, and the contact surface of urgent shrapnel 4 and lift car 2 is provided with pressure sensor, control dress
Put 5 control port, the data port of pressure sensor connection apparatus for controlling elevator.By setting support plate 3, and in support plate
3 upper and lower surface is both provided with buffer unit, then lift car 2 drops down onto support plate 3, support plate 3 drops down onto 103 bottom mistake of buffer well
Decelerating effect can be played in journey, more feasible programs is provided for elevator reduction of speed, has ensured that elevator is safe to use.It is electric when occurring
Ladder fall situation when, pressure that pressure sensor detects is more than pressure when elevator normally declines, and apparatus for controlling elevator passes through
Control device cancels supporting role of the urgent shrapnel to lift car.
The buffer unit is brute spring.
As shown in fig. 7, the control device 5 includes plug-type dead point folder 501, electric pushrod b502, urgent shrapnel 4 passes through
Shaft is installed on the side wall of buffer well 103, and control device 5 is installed on the top of exterior, the urgent shrapnel 4 of buffer well 103, push-and-pull
One end that the push-pull rod of formula dead point folder 501 is located at urgent shrapnel 4 outside buffer well 103 is corresponding, the control of plug-type dead point folder 501
The telescopic rod of bar connection electric pushrod b502 processed, the control port connection apparatus for controlling elevator of electric pushrod b502.Elevator is normal
In use, the push-pull rod of plug-type dead point folder stretches out and is located at the end thereof contacts outside elevator, urgent shrapnel with urgent shrapnel
Into horizontality, urgent shrapnel plays a supporting role lift car, when used during elevator falling occurs, the push-and-pull of plug-type dead point folder
Bar is withdrawn, and urgent shrapnel upset, lift car just declines in elevator.
Guide groove is provided between the lift car 2, elevator 1.By setting guide groove, make lift car in elevator
Movement in well is according to steady.
Sealing ring is provided between the lift car 2, elevator 1.By setting sealing ring, elevator is set to be located at elevator
Air below carriage can only discharge from exhaust outlet, the effective guarantee effect of reduction of speed.
Although above-mentioned be described the embodiment of invention with reference to attached drawing, not to the scope of the present invention
Limitation, on the basis of technical scheme, those skilled in the art, which need not make the creative labor, to be made
Various modifications or deformation still within protection scope of the present invention.
Claims (10)
1. a kind of elevator drop preventer, including apparatus for controlling elevator, elevator (1), lift car (2), it is characterised in that：Institute
Stating elevator (1) includes lift well (102), buffer well (103), and lift well (102) is elevator shaft when elevator works normally,
Buffer well (103) is arranged on the below ground of the building bottom, the underface of lift well (102), the outer contour of lift car (2)
Seal and coordinate with the Internal periphery of buffer well (103), bottom, the top of lift car (2) are provided with exhaust outlet a (201).
2. a kind of elevator drop preventer according to claim 1, it is characterized in that, the stroke of the buffer well (103) is big
In 1/3rd of lift well (102) stroke.
3. a kind of elevator drop preventer according to claim 1, it is characterized in that, the bottom of the buffer well (103) is set
Exhaust outlet b (101) is equipped with, exhaust outlet b (101) connects air by vent line (7), and exhaust outlet b (101) place is provided with sealing
Door.
4. a kind of elevator drop preventer according to claim 1, it is characterized in that, exhaust outlet a (201) position is set
There are open controller (6), the control port connection apparatus for controlling elevator of open controller (6).
5. a kind of elevator drop preventer according to claim 4, it is characterized in that, the open controller (6) includes electricity
Dynamic push rod a (601), shutter (602), electric pushrod a (601) are installed on lift car (2), and shutter (602) is installed on
On the push rod of electric pushrod a (601), shutter (602) is corresponding with exhaust outlet a (201), the control port of electric pushrod a (601)
Connect apparatus for controlling elevator.
6. a kind of elevator drop preventer according to claim 4, it is characterized in that, the anti-falling safe elevator further includes
Support plate (3), support plate (3) are arranged on the top of buffer well (103), and the upper and lower surface of support plate (3) is both provided with buffering dress
Put, the lower section of support plate (3), the side wall of buffer well (103) are provided with urgent shrapnel (4), and urgent shrapnel (4) is correspondingly arranged on control
Device (5) processed, urgent shrapnel (4) and the contact surface of lift car (2) are provided with pressure sensor, the control of control device (5)
Port, the data port connection apparatus for controlling elevator of pressure sensor.
7. a kind of elevator drop preventer according to claim 6, it is characterized in that, the buffer unit is brute spring.
8. a kind of elevator drop preventer according to claim 6, it is characterized in that, the control device (5) includes push-and-pull
Formula dead point folder (501), electric pushrod b (502), urgent shrapnel (4) are installed on by shaft on the side wall of buffer well (103), control
Device (5) processed is installed on the top of exterior, the urgent shrapnel (4) of buffer well (103), the push-pull rod of plug-type dead point folder (501) with
Urgent shrapnel (4) is located at the exterior one end of buffer well (103) and corresponds to, and the control-rod connection of plug-type dead point folder (501) is electronic to be pushed away
The telescopic rod of bar b (502), the control port connection apparatus for controlling elevator of electric pushrod b (502).
9. a kind of elevator drop preventer according to claim 1, it is characterized in that, the lift car (2), elevator
(1) guide groove is provided between.
10. a kind of elevator drop preventer according to claim 1, it is characterized in that, the lift car (2), elevator
(1) sealing ring is provided between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711164245.8A CN107934714A (en) | 2017-11-21 | 2017-11-21 | A kind of elevator drop preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711164245.8A CN107934714A (en) | 2017-11-21 | 2017-11-21 | A kind of elevator drop preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107934714A true CN107934714A (en) | 2018-04-20 |
Family
ID=61929517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711164245.8A Pending CN107934714A (en) | 2017-11-21 | 2017-11-21 | A kind of elevator drop preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107934714A (en) |
-
2017
- 2017-11-21 CN CN201711164245.8A patent/CN107934714A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180420 |