CN109019233A - A kind of means of defence of the man lift of high safety performance - Google Patents
A kind of means of defence of the man lift of high safety performance Download PDFInfo
- Publication number
- CN109019233A CN109019233A CN201811118930.1A CN201811118930A CN109019233A CN 109019233 A CN109019233 A CN 109019233A CN 201811118930 A CN201811118930 A CN 201811118930A CN 109019233 A CN109019233 A CN 109019233A
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- CN
- China
- Prior art keywords
- elevator
- air bag
- meters
- foam
- kinetic energy
- 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.)
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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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/12—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
-
- 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
-
- 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
- B66B5/282—Structure thereof
Abstract
The invention discloses the means of defences of the man lift of high safety performance a kind of, the man lift includes carriage, wirerope, drags and draw machine, guide shoe, guide rail, counterweight, the other device of disconnected rope card, buffer unit, dusting device, air bag device, the T-type connector that disconnected rope blocks on other device moves down under the pulling force effect of extension spring, push-and-pull electromagnetism movement will block other fixed link ejection, so that elevator card does not stop gliding；The signal of touch sensing switch is sent to dusting device, and direction guiding rail sprays magnesium carbonate powder；When elevator persistently falls, and generate it is larger it is weightless after, trigger signal is delivered on the igniter of air bag generator, so that air bag generator generates bulk gas and pops up air bag；The signal of touch sensing switch is sent to foam device, the foam device spray foam, so that one layer of foamed damping material is filled in shaft bottom, improves security performance.The present invention improves the security performance of elevator, improves the life security of passenger.
Description
Technical field
The invention belongs to elevator safety technical fields, and in particular to a kind of protection side of the man lift of high safety performance
Method.
Background technique
As skyscraper is continuously increased, elevator has become essential tool in people's life, and elevator is convenient, fast
Victory can save physical strength.Although elevator technology comparative maturity, performance is also fairly perfect, and security risk still remains, various electricity
Terraced accident emerges one after another, and causes very big injury and economic loss.In elevator accident, especially elevator falls suddenly, to people
The injury of member is maximum, and existing lift car bottom is equipped with buffer unit, elevator and limits between every floor there are also installed hard,
Certain buffer function can be provided when lift car falls, but the buffer function of above-mentioned apparatus is limited, in many cases simultaneously
The acceleration that lift car cannot be fallen is reduced to level of security, and resident takes elevator and still has certain risk.It is existing
Elevator when falling, the life security of personnel cannot ensure, seriously threaten the right to life of people.
Summary of the invention
Of the existing technology in order to solve the problems, such as, the present invention provides the protection side of the man lift of high safety performance a kind of
Method protects the human rights of passenger the purpose is to improve lift running safety.
To achieve the above object, the technical solution of the invention is as follows: a kind of man lift of high safety performance, including sedan-chair
Compartment, wirerope are dragged and draw machine, guide shoe, guide rail, counterweight, the other device of disconnected rope card, buffer unit, dusting device, air bag device,
Compartment frame is equipped with outside the carriage, compartment top of the trellis is equipped with wirerope, and described drag draws machine setting in elevator upper end, the wirerope
It is wound on to drag and draw on the runner of machine and one end is with reconnection, the two sides of the carriage are equipped with guide shoe, and the guide rail is fixed on sedan-chair
It is equipped with disconnected rope in the hoistway wall of compartment two sides, between the car top and wirerope and blocks other device, the bottom of the carriage is set
There is dusting device, the bottom of the carriage is equipped with air bag device, and the cage bottom is equipped with pad of getting a breathing space, the buffer unit
The shaft bottom of elevator is set.
The disconnected rope blocks other device and includes fixing seat, T-type connector, extension spring, touch sensing switch, pushes and pulls electromagnetism,
The fixing seat is fixed on the top of carriage, and drawstring spring is equipped in the fixing seat, and the drawstring spring upper end connects equipped with T-type
The upper end of fitting, the T-type connector is connect with wirerope, and the lower part of the T-type connector is switched equipped with touch sensing, described
The signal of touch sensing switch is connect with push-and-pull electromagnetism, and the push-pull rod of the push-and-pull electromagnetism is connected with the other fixed link of card, the card
Other fixed link is through on guide holder, and the card is other to be equipped with compressed spring between fixed link and guide holder, the other fixed link of card
Front end is equipped with conic clamp and does not hold, and the guide rail is equipped with the other slot of conic clamp.
The buffer unit includes the stressed plate on top and the hydraulic bjuffer that is fixed under stressed plate；It is described hydraulic slow
Rush the surrounding turning that stressed plate is arranged in device.
The dusting device includes holding vessel, solenoid valve, dust spray head, and the holding vessel is fixed on carriage by frame
Bottom, the interior storage magnesium carbonate powder of the holding vessel and compressed nitrogen, the upper port of the holding vessel is connected with solenoid valve, described
Holding vessel is connect by pipeline with the spray head that dusts, and against guide rail, the solenoid valve can be beaten the jet exit of the spray head that dusts
It opens holding vessel and internal compression nitrogen is made to extrude magnesium carbonate powder and spray from the spray head that dusts.
The air bag device includes signal trigger and air bag generator, and the signal trigger includes that contact is opened
Pass, fixed case, pressure-bearing spring, gravity block, the fixed case are fixed on cage bottom, and bottom is equipped with pressure-bearing bullet in the fixed case
Spring, the pressure-bearing spring are equipped with gravity block, and contact-making switch is equipped with above the gravity block, and the signal of the contact-making switch conveys
To the igniter of air bag generator, the air bag generator can generate bulk gas and pop up air bag.
Further, the car top is equipped with safety escape window.
Further, the stressed plate of the buffer unit is equipped with foam device, and the foam device includes holding vessel, hair
Generator, foam nozzle are steeped, polyurethane foams is stored in the holding vessel, the output end of the holding vessel and foaming occur
Device connection, the output end of the foam maker are connect with foam nozzle, and the foam nozzle is fixed on above stressed plate；It is described
The quantity of holding vessel is 2, wherein the polyurethane foams stored is two kinds, is made of respectively component A and B component, the A group
Part is made of the raw material below according to parts by weight: 40-45 parts of polyester polyol, 30-35 parts of polyether polyol, foaming agent 30-35
Part, 5-8 parts of chlorinated paraffin, 4-5 parts of talcum powder, 3-5 parts of amines catalyst, 3-5 parts of foam stabiliser, 3-4 parts of blowing promotor and
Fire retardant TCPP is 2-3 parts；The B component is made of the raw material below according to parts by weight: polymethylene multi-phenenyl isocyanate
30-32 parts.
A kind of means of defence of the man lift of high safety performance, it is characterised in that: in the case where the fracture of elevator drawstring,
The T-type connector that disconnected rope blocks on other device moves down under the pulling force effect of extension spring, touches touch sensing switch, opens
Push-and-pull electromagnetic driven is made after OFF signal triggering, will block other fixed link ejection, so that blocking other fixed link ejection card not in the taper of guide rail
Block in other slot, so that elevator card does not stop gliding；The signal of touch sensing switch is sent to dusting device, and direction guiding rail sprays carbonic acid
Magnesium dust, magnesium carbonate are macromolecular substances, since the contact area of its molecular volume die and object is with regard to big, contact surface
Stiction it is just big, contact object between stiction increase just difficult to slide, increasing friction force；When elevator persistently falls,
And generate it is larger it is weightless after, gravity block weightlessness pressure-bearing spring elastic force float downward so that the contact-making switch above gravity block connects
Touching generates trigger signal, and trigger signal is delivered on the igniter of air bag generator, so that air bag generator generates bulk gas
And air bag is popped up, backward air bag under elevator buffers elevator；The signal hair of touch sensing switch
It is sent to foam device, the foam device spray foam, so that one layer of foamed damping material is filled in shaft bottom, improves security performance；
The even running speed of elevator is less than 4m/s, and it is malfunction, all protective devices that system, which is arranged when elevator speed is greater than 8m/s,
Movement；At 20 meters away from bottom surface of elevator, the speed V=gt, h=g of bottom surface are freely fallen to/ 2, when h is 20 meters, fall on earth
Maximum speed V=the 20m/s in face, quality press existing man lift's full and down quality as 2500Kg, and the kinetic energy E that freely falling body generates=
m/ 2=500000J, to resist carriage impact kinetic energy, when elevator is away from the 20 meters of whereabouts out of control in bottom surface, foam device spray foam
Filling thickness reaches 25cm；At 30 meters away from bottom surface of elevator, the speed V=gt, h=g of bottom surface are freely fallen to/ 2, when h is 30
Meter Shi falls and arrives maximum speed V=24.5m/s of bottom surface, and quality is 2500Kg by existing man lift's full and down quality, freely
Kinetic energy E=m that falling bodies generate/ 2=750312J, to resist carriage impact kinetic energy, when elevator is away from the 30 meters of whereabouts out of control in bottom surface,
Foam device spray foam filling thickness reaches 38cm；At 50 meters away from bottom surface of elevator, speed V=gt of bottom surface is freely fallen to,
h=g/ 2, it when h is 50 meters, falls and arrives maximum speed V=31.6m/s of bottom surface, quality presses existing man lift's full and down matter
Amount is 2500Kg, kinetic energy E=m that freely falling body generates/ 2=125000J, to resist carriage impact kinetic energy, when elevator is away from bottom surface
When 50 meters of whereabouts out of control, foam device spray foam filling thickness reaches 63cm；Elevator bottom is equipped with buffer unit, under elevator
Backwardness can buffer elevator, and use hydraulic bjuffer, can generate a large amount of buffer capacity, improve buffering effect.
Use above scheme of the invention, by when accident occurs, after generation and drop into bottom overall process and protected
Shield, improves the security performance of elevator, so that elevator enables to elevator to stop gliding when falling accident occurs, fixed elevator,
When elevator falls to shaft bottom, buffering can be generated to elevator, prevent from that life is ordered to produce to threaten, improve the life security of passenger.
Detailed description of the invention:
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is side schematic view of the invention.
Fig. 3 is the schematic diagram that the present invention interrupts that rope blocks other device.
Fig. 4 is the schematic diagram of bottom part of the invention.
Fig. 5 is that cage bottom of the invention faces enlarged diagram.
Fig. 6 is cage bottom side view enlarged diagram of the invention.
Fig. 7 is the enlarged diagram of signal trigger of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, a kind of high safety performance of offer of the invention it is manned
Elevator, including carriage 1, wirerope 2, drag and draw machine 3, guide shoe 4, guide rail 5, counterweight 6, disconnected rope and block other device 7, buffer unit 8, foaming
Device 9, air bag device 10 are equipped with compartment frame 11 outside the carriage 1, are equipped with wirerope 2 at the top of compartment frame 11, described drag draws machine
3 are arranged in elevator upper end, and the wirerope 2, which is wound on, to be dragged on the runner for drawing machine 3 and one end is connect with counterweight 6, the carriage 1
Two sides be equipped with guide shoe 4, the guide rail 5 is fixed in the hoistway wall of 1 two sides of carriage, carriage 1 top and wirerope 2 it
Between be equipped with disconnected rope and block other device 7, the bottom of the carriage 1 is equipped with foam device 9, and the bottom of the carriage 1 is equipped with air bag
Device 10,1 bottom of carriage are equipped with pad 12 of getting a breathing space, and the shaft bottom of elevator is arranged in the buffer unit 8.
The disconnected rope block other device 7 include fixing seat 71, T-type connector 72, extension spring 73, touch sensing switch 74,
Electromagnetism 75 is pushed and pulled, the fixing seat 71 is fixed on the top of carriage 1, is equipped with drawstring spring 73, the drawing in the fixing seat 71
73 upper end of spring restrict equipped with T-type connector 72, the upper end of the T-type connector 72 is connect with wirerope 2, the T-type connector
72 lower part is equipped with touch sensing switch 74, and the signal of the touch sensing switch 74 is connect with push-and-pull electromagnetism 75, the push-and-pull
The push-pull rod of electromagnetism 75 is connected with the other fixed link 76 of card, and the other fixed link 76 of card is through on guide holder 77, and the card Gu Ding not
Compressed spring 78 is equipped between bar 76 and guide holder 77, the front end of the other fixed link 76 of card is equipped with conic clamp and does not hold, described to lead
Rail 5 is equipped with the other slot of conic clamp.
The stressed plate 81 of the buffer unit 8 including top and the hydraulic bjuffer 82 being fixed under stressed plate 81；Institute
State the surrounding turning that stressed plate 81 is arranged in hydraulic bjuffer 82.
The dusting device 9 includes holding vessel 91, solenoid valve 92, dust spray head 93, and the holding vessel 91 is solid by frame
It is scheduled on the bottom of carriage 1, storage magnesium carbonate powder and compressed nitrogen in the holding vessel 91, the port connection of the holding vessel 91
There is solenoid valve 92, the holding vessel 91 is connect by pipeline with the spray head 93 that dusts, and the jet exit of the spray head 93 that dusts is opposite
Guide rail 5, the solenoid valve 92 can open holding vessel 91 and internal compression nitrogen extruded magnesium carbonate powder and from dusting
Spray head 93 sprays.
The air bag device 10 includes signal trigger 101 and air bag generator 102, the signal trigger 101
Including contact-making switch 1011, fixed case 1012, pressure-bearing spring 1013, gravity block 1014, the fixed case 1012 is fixed on carriage 1
Bottom, bottom is equipped with pressure-bearing spring 1013 in the fixed case 1012, and the pressure-bearing spring 1013 is equipped with gravity block 1014, institute
It states and is equipped with contact-making switch 1011 above gravity block 1014, the signal of the contact-making switch 1011 is delivered to air bag generator 102
On igniter, the air bag generator 102 can generate bulk gas and pop up air bag.
Further, safety escape window is equipped at the top of the carriage 1.
Further, the stressed plate 81 of the buffer unit 8 is equipped with foam device 11, and the foam device 11 includes storage
Tank 111, foaming generator 112, foam nozzle 113 are deposited, stores polyurethane foams, the storage in the holding vessel 111
The output end of tank 111 is connect with foaming generator 112, and the output end of the foam maker 112 is connect with foam nozzle 113,
The foam nozzle 113 is fixed on 81 top of stressed plate；The quantity of the holding vessel 111 is 2, wherein the polyurethane hair stored
Infusion is two kinds, is made of respectively component A and B component, the component A is made of the raw material below according to parts by weight: polyester is more
First alcohol 40-45 parts, 30-35 parts of polyether polyol, 30-35 parts of foaming agent, 5-8 parts of chlorinated paraffin, 4-5 parts of talcum powder, amine urge
3-5 parts of agent, 3-5 parts of foam stabiliser, 3-4 parts of blowing promotor and fire retardant TCPP are 2-3 parts；The B component by pressing below
According to the raw material composition of parts by weight: 30-32 parts of polymethylene multi-phenenyl isocyanate.
A kind of means of defence of the man lift of high safety performance, it is characterised in that: in the case where the fracture of elevator drawstring,
The T-type connector that disconnected rope blocks on other device moves down under the pulling force effect of extension spring, touches touch sensing switch, opens
Push-and-pull electromagnetic driven is made after OFF signal triggering, will block other fixed link ejection, so that blocking other fixed link ejection card not in the taper of guide rail
Block in other slot, so that elevator card does not stop gliding；The signal of touch sensing switch is sent to dusting device, and direction guiding rail sprays carbonic acid
Magnesium dust, magnesium carbonate are macromolecular substances, since the contact area of its molecular volume die and object is with regard to big, contact surface
Stiction it is just big, contact object between stiction increase just difficult to slide, increasing friction force；When elevator persistently falls,
And generate it is larger it is weightless after, gravity block weightlessness pressure-bearing spring elastic force float downward so that the contact-making switch above gravity block connects
Touching generates trigger signal, and trigger signal is delivered on the igniter of air bag generator, so that air bag generator generates bulk gas
And air bag is popped up, backward air bag under elevator buffers elevator；The signal hair of touch sensing switch
It is sent to foam device, the foam device spray foam, so that one layer of foamed damping material is filled in shaft bottom, improves security performance；
The even running speed of elevator is less than 4m/s, and it is malfunction, all protective devices that system, which is arranged when elevator speed is greater than 8m/s,
Movement；At 20 meters away from bottom surface of elevator, the speed V=gt, h=g of bottom surface are freely fallen to/ 2, when h is 20 meters, fall on earth
Maximum speed V=the 20m/s in face, quality press existing man lift's full and down quality as 2500Kg, and the kinetic energy E that freely falling body generates=
m/ 2=500000J, to resist carriage impact kinetic energy, when elevator is away from the 20 meters of whereabouts out of control in bottom surface, foam device spray foam
Filling thickness reaches 25cm；At 30 meters away from bottom surface of elevator, the speed V=gt, h=g of bottom surface are freely fallen to/ 2, when h is 30
Meter Shi falls and arrives maximum speed V=24.5m/s of bottom surface, and quality is 2500Kg by existing man lift's full and down quality, freely
Kinetic energy E=m that falling bodies generate/ 2=750312J, to resist carriage impact kinetic energy, when elevator is away from the 30 meters of whereabouts out of control in bottom surface,
Foam device spray foam filling thickness reaches 38cm；At 50 meters away from bottom surface of elevator, speed V=gt of bottom surface is freely fallen to,
h=g/ 2, it when h is 50 meters, falls and arrives maximum speed V=31.6m/s of bottom surface, quality presses existing man lift's full and down matter
Amount is 2500Kg, kinetic energy E=m that freely falling body generates/ 2=125000J, to resist carriage impact kinetic energy, when elevator is away from bottom surface
When 50 meters of whereabouts out of control, foam device spray foam filling thickness reaches 63cm；Elevator bottom is equipped with buffer unit, under elevator
Backwardness can buffer elevator, and use hydraulic bjuffer, can generate a large amount of buffer capacity, improve buffering effect.
Above-described embodiment only illustrates technical approach and technical characterstic of the invention, in the art common the purpose is to allow
Technical staff cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.All
The equivalent changes or modifications made according to the essence of the content of present invention, should be covered by the scope of protection of the present invention.
Claims (1)
1. a kind of operation means of defence of the man lift of high safety performance, it is characterised in that: disconnected rope blocks the T-type on other device and connects
Fitting moves down under the pulling force effect of extension spring, touches touch sensing switch, pushes and pulls electromagnetism after switching signal triggering
Movement will block other fixed link ejection, so that blocking other fixed link ejection card not in the other slot of the conic clamp of guide rail, so that elevator card is other
It stops gliding；The signal of touch sensing switch is sent to dusting device, and direction guiding rail sprays magnesium carbonate powder, increasing friction force；When
Elevator persistently falls, and generate it is larger it is weightless after, gravity block weightlessness pressure-bearing spring elastic force float downward so that above gravity block
Contact-making switch contact generate trigger signal, trigger signal is delivered on the igniter of air bag generator, so that air bag generator
It generates bulk gas and pops up air bag, backward air bag under elevator buffers elevator；Touch sensing
The signal of switch is sent to foam device, and the foam device spray foam mentions so that one layer of foamed damping material is filled in shaft bottom
High safety performance；The even running speed of elevator is less than 4m/s, and it is malfunction, institute that system, which is arranged when elevator speed is greater than 8m/s,
There is protective device movement；At 20 meters away from bottom surface of elevator, the speed V=gt, h=g of bottom surface are freely fallen to/ 2, when h is 20 meters
When, it falls and arrives maximum speed V=20m/s of bottom surface, quality is 2500Kg, freely falling body by existing man lift's full and down quality
Kinetic energy E=m of generation/ 2=500000J, to resist carriage impact kinetic energy, when elevator is away from the 20 meters of whereabouts out of control in bottom surface, foaming
Device spray foam filling thickness reaches 25cm；At 30 meters away from bottom surface of elevator, the speed V=gt, h=g of bottom surface are freely fallen to/ 2, it when h is 30 meters, falls and arrives maximum speed V=24.5m/s of bottom surface, quality is by existing man lift's full and down quality
2500Kg, kinetic energy E=m that freely falling body generates/ 2=750312J, to resist carriage impact kinetic energy, when 30 meters away from bottom surface of elevator
When whereabouts out of control, foam device spray foam filling thickness reaches 38cm；At 50 meters away from bottom surface of elevator, bottom surface is freely fallen to
Speed V=gt, h=g/ 2, it when h is 50 meters, falls and arrives maximum speed V=31.6m/s of bottom surface, quality presses existing manned electricity
Terraced full and down quality is 2500Kg, kinetic energy E=m that freely falling body generates/ 2=125000J, to resist carriage impact kinetic energy, when
When elevator is away from the 50 meters of whereabouts out of control in bottom surface, foam device spray foam filling thickness reaches 63cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811118930.1A CN109019233B (en) | 2018-09-26 | 2018-09-26 | Protection method of manned elevator with high safety performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811118930.1A CN109019233B (en) | 2018-09-26 | 2018-09-26 | Protection method of manned elevator with high safety performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109019233A true CN109019233A (en) | 2018-12-18 |
| CN109019233B CN109019233B (en) | 2020-09-08 |
Family
ID=64618447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811118930.1A Active CN109019233B (en) | 2018-09-26 | 2018-09-26 | Protection method of manned elevator with high safety performance |
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| Country | Link |
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| CN (1) | CN109019233B (en) |
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| CN112374321A (en) * | 2020-11-09 | 2021-02-19 | 山东奔速电梯股份有限公司 | Bottomless pit braking device for home elevator |
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| CN112374321A (en) * | 2020-11-09 | 2021-02-19 | 山东奔速电梯股份有限公司 | Bottomless pit braking device for home elevator |
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| Publication number | Publication date |
|---|---|
| CN109019233B (en) | 2020-09-08 |
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