CN103738806B - A kind of elevator hoistways personnel drop protection system - Google Patents
A kind of elevator hoistways personnel drop protection system Download PDFInfo
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- CN103738806B CN103738806B CN201310728276.7A CN201310728276A CN103738806B CN 103738806 B CN103738806 B CN 103738806B CN 201310728276 A CN201310728276 A CN 201310728276A CN 103738806 B CN103738806 B CN 103738806B
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Abstract
The invention discloses a kind of elevator hoistways personnel drop protection system, comprise personnel to fall shock absorber (1), compressed air source unit (2), monitoring device (3) and electric-control system (4), personnel's shock absorber that falls comprises cushion rubber (1.1) and bounce cylinder group (1.7), cushion rubber is arranged on above bounce cylinder group, and whole personnel fall the height of shock absorber lower than the height 30 ~ 100mm of car crouching tank energy disperser (5); Bounce cylinder group comprises outer cover (1.8) and cylinder (1.9), and the stroke of cylinder is greater than 150mm; Compressed air source unit is arranged on bottom elevator hoistways; Monitoring device is made up of sensor, equidistantly arranges along elevator hoistways inwall; Electric-control system power acquisition lithium cell, comprises monitoring circuit, cylinder ejector loop, cylinder return loop and verification test loop.This elevator hoistways personnel drop protection system can reduce pendant well personnel and drop on the risk causing injures and deaths above crouching tank energy disperser; Reusable, be easy to safeguard; Still protective action can be played when mains failure.
Description
Technical field
The present invention relates to a kind of personnel's drop protection system, specifically a kind of elevator hoistways personnel drop protection system, belong to elevator safety protection field.
Background technology
Along with the development of society, the use of elevator is more and more general, only use in commercial mansion, hotel from original, be transitioned into and use in the place such as office building, residential building, the most general with vertical lift elevator, popularizing of this vertical lift elevator, brings facility to the life of people, but incident elevator accident also increases gradually, people also more and more start the safety prevention measure paying close attention to vertical lift elevator.
Lift protects measure common is at present a lot, general by elevator governor, safety tongs, wire holder, car crouching tank energy disperser, safety edge, layer door lock, lift safety window, elevator overload restraint device, the compositions such as limit switch device, all the protection carried out from the angle preventing lift car from falling passenger in well and then protection car, but open elevator door is improper because of artificial origin or non-artificial reason, and lift car is not again when this layer is stopped, or elevator has a power failure suddenly, when passenger is because of panic positive opening car door, very easily there is personnel's falling accident.
Existing personnel's drop protection system is generally arrange shock absorber at shaft bottom; or relevant position arranges the life net etc. that can eject in hoistway; by falling situation carry out action according to monitoring situation Sensor monitoring personnel such as being arranged on infrared pickoff vertically uniform in elevator hoistways; and then reach the object protecting the personnel that fall; this protective system can reach the object of lifesaving, but also there is following defect:
1. because shock absorber is arranged on shaft bottom, therefore its thickness can not exceed the height preventing lift car crouching tank energy disperser, otherwise can produce the operation of elevator and interfere, affect the stop of lift car at the bottom, so just cause the upper surface of shock absorber not to be whole flexible buffer faces, and also comprise the hard end face at crouching tank energy disperser top, therefore, if personnel crash into hoistway, drop on above instead of above the flexible buffer face of shock absorber of crouching tank energy disperser, can injures and deaths be caused equally;
2. not only can cushion lift car, but also can cushion the shock absorber with supple buffer layer of the personnel that fall, when normally using, can touch cushion layer during the elevator car arrives bottom, therefore buffer-layer surface is fragile;
3. can eject the apparatus structure relative complex of life net, must calculate and accurately just can reach the life net of ejection and coordinating of fixed hook, and single use often, recycling rate of waterused is low, and dismounting is very complicated;
4. traditional protective system generally must the competence exertion effect when there being civil power, once elevator power failure, and device and inoperative.
Summary of the invention
For the problems referred to above, the invention provides a kind of elevator hoistways personnel drop protection system, can available protecting human body when the personnel of having monitored fall, be convenient to safeguard, reusable, and protective effect can be played equally when elevator power failure.
For achieving the above object, this elevator hoistways personnel drop protection system comprises personnel and to fall shock absorber, compressed air source unit, monitoring device and electric-control system;
Personnel's shock absorber that falls comprises cushion rubber and bounce cylinder group, and cushion rubber is arranged on above bounce cylinder group, and the end face of cushion rubber is lower than the end face 30 ~ 100mm of car crouching tank energy disperser; Cushion rubber comprises cushion layer and base plate, and cushion layer is arranged on also being fixedly connected with it of base plate above, and cushion layer and base plate are equipped with the hole allowing car crouching tank energy disperser to pass through; Bounce cylinder group is at least set to two pieces, and its top center symmetry is fixedly installed on the baseplane of cushion rubber base plate, and be fixed on bottom it bottom elevator hoistways, bounce cylinder group comprises cylinder, and the stroke of cylinder is greater than 150mm;
Compressed air source unit is arranged on bottom elevator hoistways, comprise motor, air pump, three-position electromagnetic air operated reversing valve and storage tank, motor is connected with air pump, the air extractor duct of air pump is connected with the admission port of storage tank through the gas circuit pipeline with check valve, the air extractor duct of storage tank is connected with cylinder by three-position electromagnetic air operated reversing valve, storage tank inside is provided with atmospheric pressure sensor, and atmospheric pressure sensor is electrically connected with central process unit, and motor is electrically connected with central process unit;
Monitoring device is made up of sensor, is arranged on elevator hoistways inwall, equidistantly arranges along elevator hoistways;
Electric-control system comprises power supply and central process unit, power acquisition lithium cell is also electrically connected with civil power, central process unit is connected with power electric, monitoring device is electrically connected with central process unit, and electric-control system comprises electric-control system and comprises power circuit, observation circuit, analog computing circuit, cylinder control loop and verification test circuit.
Scheme as a further improvement on the present invention, described bounce cylinder group also comprises outer cover and spring, outer cover is inverted barrel shape structure, the cylinder body being placed on cylinder is outside and its bung position is provided with the spacing ring limiting it and can not depart from cylinder block, the internal diameter size of spacing ring coordinates with the cylinder body outside dimension of cylinder, and the piston end of cylinder peaks at outer cover inside; The original height of spring is greater than the stroke of cylinder, and spring one end is against bottom elevator hoistways, and the other end peaks at the spacing ring place of outer cover; Shield base arranges lockout mechanism, and lockout mechanism is opened and locking by the solenoid control be fixedly installed on bottom elevator hoistways, and electromagnetic valve is electrically connected with central process unit; The piston end end face center of cylinder arranges negative thread; Cushion rubber and outer cover are provided with spring return function through hole relative to the position of cylinder piston end negative thread.
Scheme as a further improvement on the present invention, described cushion layer is arranged to laminar texture, comprises bedspring bed course and spongy layer, and spongy layer is arranged on also being fixedly connected with it of spring bed course above, and spring base surface is fixedly connected with the upper surface of base plate.
Scheme as a further improvement on the present invention, the top of described cushion layer adds air bag layer, the bottom surface of air bag layer is fixedly connected with the end face of spongy layer, air bag layer inside is provided with fast aeration element, air bag layer is successively by being connected with storage tank with the gas circuit pipeline of check valve, electromagnetic pneumatic shutoff valve, and fast aeration element and electromagnetic pneumatic shutoff valve are electrically connected with central process unit.
Scheme as a further improvement on the present invention, the quantity of described compressed air source unit is set at least two, is communicated with respectively through the gas circuit pipeline with check valve with storage tank.
Scheme as a further improvement on the present invention, described bounce cylinder group is set to four.
Scheme as a further improvement on the present invention, described electric-control system also comprises elevator power control circuit, hoistway emergency light circuit, warning circuit, emergency telephone circuit and verification test circuit.
Scheme as a further improvement on the present invention, described power supply is provided with charge protection device.
Scheme as a further improvement on the present invention, also comprise spring return function instrument, spring return function instrument is rod shaped structure, its lower end is provided with the outside thread with the screw-internal thread fit of cylinder piston inside, its middle and lower part is provided with the support ring be fixedly connected with it, the form of connector is arranged in its upper end, or is arranged to arc or "T"-shaped.
Scheme as a further improvement on the present invention, adds surface bearing in support ring.
Compared with prior art, this elevator hoistways personnel drop protection system can the personnel that eject of air pressure to be fallen shock absorber owing to being provided with, therefore when the personnel of having detected crash into elevator hoistways, storage tank is inflated to lower chamber of air cylinder inflation, simultaneously air pump by three-position electromagnetic air operated reversing valve in storage tank, cushion rubber is headed on quick rise by cylinder and higher than lift car crouching tank energy disperser certain distance, drops on because this reducing pendant well personnel the risk causing injures and deaths above crouching tank energy disperser; Because personnel during normal condition fall the height of shock absorber lower than the height of lift car crouching tank energy disperser, therefore do not affect the stop of lift car at the bottom when elevator normally runs, and buffer-layer surface is not fragile; Can quick operated cylinder controllers to fall the lifting of shock absorber owing to adopting, can return repeated usage, and return simple to operate, be easy to safeguard, therefore personnel's shock absorber right and wrong of falling are disposable; Owing to adopting the lithium cell DC supply connecting civil power, therefore when mains failure, this protective system still can play the effect of protection; Owing to being provided with elevator power control circuit, hoistway emergency light circuit, warning circuit and emergency telephone circuit, therefore, it is possible to learn personnel's falling accident fast, be convenient to very first time treatment pendant well personnel.
Accompanying drawing explanation
Fig. 1 be personnel of the present invention fall shock absorber eject after structural representation;
Fig. 2 is that personnel of the present invention fall the structural representation of shock absorber when not ejecting;
Fig. 3 is the structural representation of spring return function instrument of the present invention;
Fig. 4 is the structural representation after mounting spring return special tool of the present invention;
Fig. 5 is the structural representation that the present invention is arranged on elevator car roof bottom elevator hoistways;
Fig. 6 is electrical schematic diagram of the present invention.
In figure: 1, personnel fall shock absorber, 1.1, cushion rubber, 1.2, cushion layer, 1.3, spring bed course, 1.4, spongy layer, 1.5, air bag layer, 1.6, base plate, 1.7, bounce cylinder group, 1.8, outer cover, 1.9, cylinder, 1.10, spring, 1.11, lockout mechanism, 1.12, electromagnetic valve, 2, compressed air source unit, 2.1, motor, 2.2, air pump, 2.3, storage tank, 2.4, three-position electromagnetic air operated reversing valve, 3, monitoring device, 4, electric-control system, 4.1, power supply, 4.2, central process unit, 5, car crouching tank energy disperser, 6, spring return function instrument, 6.1, support ring, 6.2, surface bearing.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
Because the speed of response of pneumatic cylinder is more a lot of soon than the speed of response of hydraulic ram, therefore the present invention adopts air operated control.
As shown in Figure 1 and Figure 2, this elevator hoistways personnel drop protection system comprises personnel and to fall shock absorber 1, compressed air source unit 2, monitoring device 3 and electric-control system 4.
Personnel's shock absorber 1 that falls comprises cushion rubber 1.1 and bounce cylinder group 1.7, cushion rubber 1.1 is arranged on above bounce cylinder group 1.7, the end face of cushion rubber 1.1, lower than the end face 30 ~ 100mm of car crouching tank energy disperser 5, can ensure that elevator does not destroy the end face of cushion rubber 1.1 in the stop of the bottom like this;
Cushion rubber 1.1 comprises cushion layer 1.2 and base plate 1.6, cushion layer 1.2 is arranged on also being fixedly connected with it of base plate 1.6 above, cushion layer 1.2 and base plate 1.6 are equipped with the hole allowing car crouching tank energy disperser 5 to pass through, are convenient to cushion rubber 1.1 to be socketed on car crouching tank energy disperser 5;
Bounce cylinder group 1.7 is at least set to two pieces, its top center symmetry is fixedly installed on the baseplane of cushion rubber base plate 1.6, be fixedly connected on bottom it bottom elevator hoistways, bounce cylinder group 1.7 comprises cylinder 1.9, the stroke of cylinder 1.9 is greater than 150mm, ensures that cylinder 1.9 ejects the end face of upper plane higher than car crouching tank energy disperser 5 of rear cushion rubber 1.1.
Compressed air source unit 2 is arranged on bottom elevator hoistways, comprise motor 2.1, air pump 2.2, three-position electromagnetic air operated reversing valve 2.4 and storage tank 2.3, motor 2.1 is connected with air pump 2.2, the air extractor duct of air pump 2.2 is connected with the admission port of storage tank 2.3 through the gas circuit pipeline with check valve, the setting of check valve ensure that the gas being filled with storage tank 2.3 can not flow backwards back, the air extractor duct of storage tank 2.3 is connected with cylinder 1.9 by three-position electromagnetic air operated reversing valve 2.4, and three-position electromagnetic air operated reversing valve 2.4 normality is closure state; Storage tank 2.3 inside is provided with atmospheric pressure sensor, and atmospheric pressure sensor is electrically connected with central process unit 4.2, and motor 2.1 is electrically connected with central process unit 4.2.
Monitoring device 3 is made up of infrared heat sensor sensor, personnel whether are had to crash into for monitoring, be arranged on elevator hoistways inwall, equidistantly arrange along elevator hoistways, can every layer a sensor is set, each sensor is all electrically connected with central process unit 4.2, and sensor can be electrically connected with central process unit 4.2 by the mode of wireless connections or wired connection.
Electric-control system 4 comprises power supply 4.1 and central process unit 4.2, power acquisition lithium cell is also electrically connected with civil power, central process unit 4.2 is electrically connected with power supply 4.1, and electrical control circuit comprises power circuit, observation circuit, analog computing circuit, cylinder control circuit and verification test circuit.
When having detected that personnel fall well to make monitoring device 3, cushion rubber 1.1 can rise more quickly, and potential energy when can absorb pendant well personnel's collision buffering pad 1.1 further, and then reduce personal casualty rate further, scheme as a further improvement on the present invention, described bounce cylinder group 1.7 also comprises outer cover 1.8 and spring 1.10, outer cover 1.8 is inverted barrel shape structures, the cylinder body being placed on cylinder 1.9 is outside, and its bung position is provided with the spacing ring limiting it and can not depart from cylinder block, the internal diameter size of spacing ring coordinates with the cylinder body outside dimension of cylinder 1.9, the piston end of cylinder 1.9 peaks at outer cover 1.8 inside, the original height of spring 1.10 is greater than the stroke of cylinder 1.9, and spring 1.10 one end is against bottom elevator hoistways, and the other end peaks at the spacing ring place of outer cover 1.8, arrange lockout mechanism 1.11 bottom outer cover 1.8, lockout mechanism 1.11 controls to open and locking by the electromagnetic valve 1.12 be fixedly installed on bottom elevator hoistways, and electromagnetic valve 1.12 is electrically connected with central process unit 4.2, cylinder 1.9 piston end end face center arranges negative thread, cushion rubber 1.1 and outer cover 1.8 arrange spring return function through hole relative to the position of cylinder piston end negative thread.
In order to potential energy during pendant well personnel's collision buffering pad 1.1 fully can be absorbed, and then reduce personal casualty rate further, scheme as a further improvement on the present invention, described cushion layer 1.2 is arranged to laminar texture, comprise spring bed course 1.3 and spongy layer 1.4, spongy layer 1.4 is arranged on also being fixedly connected with it of spring bed course 1.3 above, and spring bed course 1.3 bottom surface is fixedly connected with the upper surface of base plate 1.6.
For the elevator hoistways of skyscraper, in order to potential energy during pendant well personnel's collision buffering pad 1.1 can be absorbed further, and then reduce personal casualty rate, scheme as a further improvement on the present invention, the top of described cushion layer 1.2 adds air bag layer 1.5, and the bottom surface of air bag layer 1.5 is fixedly connected with the end face of spongy layer 1.4, and air bag layer 1.5 inside is provided with fast aeration element, fast aeration element can adopt the fast aeration element in safe automobile air bag, and can be set to more than one piece; Air bag layer 1.5 is successively by being connected with storage tank 2.3 with the gas circuit pipeline of check valve, electromagnetic pneumatic shutoff valve, the gas that the setting of check valve produces when ensure that fast aeration element manipulation can not flow into storage tank 2.3, and fast aeration element and electromagnetic pneumatic shutoff valve are electrically connected with central process unit 4.2.
In order to provide enough atmospheric pressures, scheme as a further improvement on the present invention, the quantity of described compressed air source unit 2 is set at least two, is communicated with respectively through the gas circuit pipeline with check valve with storage tank (2.3).。
In order to ensure that the whole personnel shock absorber 1 that falls can evenly bear falling impacts power in a more stable horizontal surface, scheme as a further improvement on the present invention, described bounce cylinder group 1.7 is set to four, its top center symmetry is fixedly installed on the baseplane of cushion rubber base plate 1.6, is fixedly connected on bottom elevator hoistways bottom it.
As shown in Figure 6, in order to can when there is personnel's falling accident the very first time find that there is personnel and fall well, scheme as a further improvement on the present invention, described electric-control system 4 also comprises elevator power control circuit, hoistway emergency light circuit, warning circuit and emergency telephone circuit, elevator power control circuit is electrically connected with elevator general supply, when there is personnel's falling accident, namely elevator power supply is forced closed, lift car is action no longer, warning circuit can realize reporting to the police simultaneously, the hoistway emergency light being arranged at shaft bottom is opened simultaneously, convenient pendant well personnel are asked for help by emergency telephone.
In order to can protection power source 4.1, prevent from overcharging and cause cell damage to lose efficacy, scheme as a further improvement on the present invention, described power supply 4.1 be provided with charge protection device.
Because the piston end end face center of cylinder 1.9 is provided with negative thread, cushion rubber 1.1 and outer cover 1.8 are provided with spring return function through hole relative to the position of cylinder piston, therefore, scheme as a further improvement on the present invention, can rise at cushion rubber 1.1 and realize passing through spring return function instrument 6 by spring 1.10 return after protection falls well personnel function, realize recycling, as shown in Figure 3, this spring return function instrument 6 is rod shaped structures, its lower end is provided with the outside thread that the negative thread that arranges with cylinder piston end end face center cooperatively interacts, its middle and lower part is provided with the support ring 6.1 be fixedly connected with it, the form of connector is arranged in its upper end, other electric rotating tools can be connected, or be arranged to arc or "T"-shaped, can rotate by M/C.
In order to reduce when using this spring return function instrument 6 cliding friction of base plate 1.6, use more laborsaving, scheme as a further improvement on the present invention, adds surface bearing 6.2 bottom support ring 6.1.
Before this elevator hoistways personnel drop protection system is installed, need central process unit 4.2 input routine, this program can judge according to the signal being vertically equidistantly arranged on the sensor feedback of different floor in elevator hoistways the height of personnel apart from shaft bottom that fall, according to the size of the average weight analogue computing impulsive force of setting, and then judge whether open air bag layer 1.5.
When elevator normal operation and monitoring device 3 has not detected that personnel fall time, bounce cylinder group 1.7 is positioned at stroke lowermost position, namely cylinder 1.9 is positioned at stroke lowermost position and spring 1.10 is in compression lock-out state, now compressed air source unit 2 is in off position, and whole personnel fall, the height of shock absorber 1 is lower than the height of lift car crouching tank energy disperser 5; When charge protection device detects power supply 4.1 lower than setting lower voltage limit, connect civil power and charge to power supply 4.1, cut off civil power when reaching capping voltage, protection power source 4.1 prevents from overcharging; When central process unit 4.2 receives lower limit atmospheric pressure value lower than setting of atmospheric pressure sensor feedback signal atmospheric pressure value in storage tank 2.3, namely sending signal enabling motor 2.1 drives air pump 2.2 pairs of storage tanks 2.3 to inflate, motor 2.1 power supply is cut off when reaching the upper limit atmospheric pressure value of setting, gas circuit pipeline with check valve ensure that the gas being filled with storage tank 2.3 can not flow backwards back, ensures the atmospheric pressure value remaining setting in storage tank 2.3.
When monitoring device 3 has detected that personnel fall, namely central process unit 4.2 calculates according to the electric signal of the sensor feedback of monitoring device 3, determining program according to input judges whether to need to open air bag layer 1.5, simultaneously, central process unit 4.2 synchronously sends signal and opens three-position electromagnetic air operated reversing valve 2.4, starter motor 2.1 and open electromagnetic valve 1.12 and open elevator power control circuit, hoistway emergency light circuit, warning circuit and emergency telephone circuit, storage tank 2.3 is inflated to cylinder 1.9 cavity of resorption by three-position electromagnetic air operated reversing valve 2.4, air pump 2.2 is inflated in storage tank 2.3, lockout mechanism 1.11 is unlocked, now, cushion rubber 1.1 is upspring immediately under spring 1.10 discharges the effect of elastic potential energy, height due to spring 1.10 is greater than the stroke of cylinder 1.9, therefore after the piston stroke of cylinder 1.9 is completely pushed out of, also certain distance is there is between at the bottom of the bucket of piston tip and outer cover 1.8, and whole personnel fall, the height of shock absorber 1 is higher than the height at least 50 ~ 120mm of lift car crouching tank energy disperser.
While cylinder 1.9 and spring 1.10 eject, if when central process unit 4.2 judges not need to open air bag layer 1.5 according to the impulsive force size calculated, central process unit 4.2 can not send instruction to fast aeration element and electromagnetic pneumatic shutoff valve, air bag layer 1.5 can not inflatable open, pendant well personnel and the personnel shock absorber 1 that falls clashes into instantaneously, first through spongy layer 1.4, spring bed course 1.3, absorption portion potential energy, if potential energy is large, continue to press down, then Compress Spring 1.10, continue to absorb potential energy, after contacting with the pistons end of cylinder 1.9 at the bottom of the bucket of outer cover 1.8, last compression cylinder 1.9 absorbs potential energy, progressive until absorb whereabouts potential energy completely, realize the object of protection pendant well personnel.
While cylinder 1.9 and spring 1.10 eject, if when central process unit 4.2 judges to need to open air bag layer 1.5 according to the impulsive force size calculated, namely central process unit 4.2 sends instruction to fast aeration element and electromagnetic pneumatic shutoff valve, electric current is made to flow through the squib of fast aeration element, make it generate heat the ignition media in squib ignited, flame is diffused into the gentle body propellant of igniting medicinal powder immediately, and then produce a large amount of gas, air bag layer 1.5 is inflated, simultaneously, electromagnetic pneumatic shutoff valve is opened, storage tank 2.3 pairs of air bag layer 1.5 supplemental inflatables, air bag layer 1.5 enriches the most at last, now, pendant well personnel and the personnel shock absorber 1 that falls clashes into instantaneously, first air bag layer 1.5 is clashed into, absorption portion potential energy, and then clash into spongy layer 1.4, spring bed course 1.3, absorption portion potential energy again, if potential energy is large, continue to press down, then Compress Spring 1.10, continue to absorb potential energy further, after contacting with the pistons end of cylinder 1.9 at the bottom of the bucket of outer cover 1.8, last compression cylinder 1.9 absorbs potential energy, progressive until absorb whereabouts potential energy completely, thus realize protection pendant well personnel.
When monitoring device 3 has detected that personnel fall, elevator power control circuit has made elevator power supply be forced closed, and lift car is action no longer, can prevent lift car decline from causing further injury to pendant well personnel; Alerting signal can be passed to the external world very first time by warning circuit; The hoistway emergency light being arranged at shaft bottom is opened simultaneously, and pendant well personnel can be asked for help by emergency telephone.
As shown in Figure 4, after accident is removed, service personnel enters shaft bottom maintenance equipment, first air bag layer 1.5 is exitted, air bag can be received after changing fast aeration element, then insert in the spring return function through hole that cushion rubber 1.1 and outer cover 1.8 arrange relative to the position of cylinder piston with spring return function instrument 6, by electric rotating tool or manual shaft to torsional spring return special tool, cylinder 1.9 internal piston will be threaded into bottom spring return function special tool, and then Compress Spring 1.10, when cylinder 1.9 piston tip with contact at the bottom of the bucket of outer cover 1.8 after, operate cylinder return loop again, storage tank 2.3 is inflated to cylinder 1.9 epicoele by three-position electromagnetic air operated reversing valve 2.4, the retraction of cylinder 1.9 piston, and then drive cushion rubber 1.1 Compress Spring 1.10 further, until lockout mechanism 1.11 is lower than electromagnetic valve 1.12 position, namely be locked, last retrograde rotation spring return function special tool unloads the i.e. personnel of completing and to fall the return of shock absorber 1.
During conventional maintenance, can performance tests test loop, can check implement be realized, thus the parts that need change are changed.
As shown in Figure 5; the personnel of this elevator hoistways personnel drop protection system shock absorber that falls can be fixedly mounted on the top of lift car simultaneously; realize the protection to the pendant well personnel being in the above floor of lift car place floor; when being fixedly mounted on the top of lift car, the electric connection mode of itself and electric-control system 4 can select the mode of wireless connections or the mode of wired connection.
This elevator hoistways personnel drop protection system not only can be applied to the elevator of vertical lift, can also be applied to all with on the Lifting Convey equipment of vertical hoistway, as mine cage etc.
This elevator hoistways personnel drop protection system can reduce pendant well personnel and drop on the risk causing injures and deaths above crouching tank energy disperser; Do not affect the stop of lift car at the bottom when elevator normally runs, and buffer-layer surface is not fragile; Return repeated usage can be realized, and return simple to operate, be easy to safeguard, non-once use; When mains failure, this protective system still can play the effect of protection; Can realize learning personnel's falling accident fast, be convenient to very first time treatment pendant well personnel.
Claims (10)
1. an elevator hoistways personnel drop protection system, comprise personnel and to fall shock absorber (1), monitoring device (3) and electric-control system (4), monitoring device (3) is made up of sensor, is arranged on elevator hoistways inwall, equidistantly arranges along elevator hoistways; Electric-control system (4) comprises power supply (4.1) and central process unit (4.2), and central process unit (4.2) is electrically connected with power supply (4.1), and monitoring device (3) is electrically connected with central process unit (4.2), it is characterized in that,
The described personnel shock absorber (1) that falls comprises cushion rubber (1.1) and bounce cylinder group (1.7), cushion rubber (1.1) is arranged on above bounce cylinder group (1.7), and the end face of cushion rubber (1.1) is lower than the end face 30 ~ 100mm of car crouching tank energy disperser (5);
Cushion rubber (1.1) comprises cushion layer (1.2) and base plate (1.6), cushion layer (1.2) is arranged on also being fixedly connected with it of base plate (1.6) above, and cushion layer (1.2) and base plate (1.6) are equipped with the hole allowing car crouching tank energy disperser (5) to pass through;
Bounce cylinder group (1.7) is at least set to two pieces, its top center symmetry is fixedly installed on the baseplane of cushion rubber base plate (1.6), be fixed on bottom it bottom elevator hoistways, bounce cylinder group (1.7) comprises cylinder (1.9), and the stroke of cylinder (1.9) is greater than 150mm;
Also comprise compressed air source unit (2), compressed air source unit (2) is arranged on bottom elevator hoistways, comprise motor (2.1), air pump (2.2), three-position electromagnetic air operated reversing valve (2.4) and storage tank (2.3), motor (2.1) is connected with air pump (2.2), the air extractor duct of air pump (2.2) is connected with the admission port of storage tank (2.3) through the gas circuit pipeline with check valve, the air extractor duct of storage tank (2.3) is connected with cylinder (1.9) by three-position electromagnetic air operated reversing valve (2.4), storage tank (2.3) inside is provided with atmospheric pressure sensor, atmospheric pressure sensor is electrically connected with central process unit (4.2), motor (2.1) is electrically connected with central process unit (4.2),
Described power supply (4.1) adopts lithium cell and is electrically connected with civil power;
The electrical control circuit of described electric-control system (4) also comprises analog computing circuit, cylinder control circuit and verification test circuit.
2. elevator hoistways personnel drop protection system according to claim 1, it is characterized in that, described bounce cylinder group (1.7) also comprises outer cover (1.8) and spring (1.10), outer cover (1.8) is inverted barrel shape structure, the cylinder body being placed on cylinder (1.9) is outside and its bung position is provided with the spacing ring limiting it and can not depart from cylinder block, the internal diameter size of spacing ring coordinates with the cylinder body outside dimension of cylinder (1.9), and the piston end of cylinder (1.9) peaks at outer cover (1.8) inside; The original height of spring (1.10) is greater than the stroke of cylinder (1.9), and spring (1.10) one end is against bottom elevator hoistways, and the other end peaks at the spacing ring place of outer cover (1.8); Outer cover (1.8) bottom arranges lockout mechanism (1.11), and lockout mechanism (1.11) controls to open and locking by the electromagnetic valve (1.12) be fixedly installed on bottom elevator hoistways, and electromagnetic valve (1.12) is electrically connected with central process unit (4.2); The piston end end face center of cylinder (1.9) arranges negative thread; Cushion rubber (1.1) and outer cover (1.8) are provided with spring return function through hole relative to the position of cylinder piston end negative thread.
3. elevator hoistways personnel drop protection system according to claim 1 and 2, it is characterized in that, described cushion layer (1.2) is arranged to laminar texture, comprise spring bed course (1.3) and spongy layer (1.4), spongy layer (1.4) is arranged on also being fixedly connected with it of spring bed course (1.3) above, and spring bed course (1.3) bottom surface is fixedly connected with the upper surface of base plate (1.6).
4. elevator hoistways personnel drop protection system according to claim 1 and 2, it is characterized in that, the top of described cushion layer (1.2) adds air bag layer (1.5), the bottom surface of air bag layer (1.5) is fixedly connected with the end face of spongy layer (1.4), air bag layer (1.5) inside is provided with fast aeration element, air bag layer (1.5) is successively by being connected with storage tank (2.3) with the gas circuit pipeline of check valve, electromagnetic pneumatic shutoff valve, and fast aeration element and electromagnetic pneumatic shutoff valve are electrically connected with central process unit (4.2).
5. elevator hoistways personnel drop protection system according to claim 4, is characterized in that, the quantity of described compressed air source unit (2) is set at least two, is communicated with respectively through the gas circuit pipeline with check valve with storage tank (2.3).
6. elevator hoistways personnel drop protection system according to claim 1 and 2, is characterized in that, described bounce cylinder group (1.7) is set to four.
7. elevator hoistways personnel drop protection system according to claim 1 and 2, is characterized in that, the electrical control circuit of described electric-control system (4) also comprises elevator power control circuit, hoistway emergency light circuit, warning circuit, emergency telephone circuit.
8. elevator hoistways personnel drop protection system according to claim 1 and 2, is characterized in that, described power supply (4.1) is provided with charge protection device.
9. elevator hoistways personnel drop protection system according to claim 2, it is characterized in that, also comprise spring return function instrument (6), spring return function instrument (6) is rod shaped structure, its lower end is provided with the outside thread that the negative thread that arranges with cylinder piston end end face center cooperatively interacts, its middle and lower part is provided with the support ring (6.1) be fixedly connected with it, and the form of connector is arranged in its upper end, or is arranged to arc or "T"-shaped.
10. elevator hoistways personnel drop protection system according to claim 9, is characterized in that, described support ring (6.1) bottom adds surface bearing (6.2).
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| CN201310728276.7A CN103738806B (en) | 2013-12-26 | 2013-12-26 | A kind of elevator hoistways personnel drop protection system |
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| CN201310728276.7A CN103738806B (en) | 2013-12-26 | 2013-12-26 | A kind of elevator hoistways personnel drop protection system |
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| CN103738806B true CN103738806B (en) | 2016-01-27 |
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| CN104276473A (en) * | 2014-03-19 | 2015-01-14 | 李志伟 | Anti-dropping device for car type elevator |
| CN104176582B (en) * | 2014-08-12 | 2016-09-28 | 苏州台菱电梯有限公司 | A kind of elevator anti-fall device and using method thereof |
| CN106276462A (en) * | 2015-05-25 | 2017-01-04 | 江苏施塔德电梯有限公司 | Intelligent elevator stall protection system |
| CN105882946B (en) * | 2016-04-12 | 2018-01-05 | 西安京东天鸿科技有限公司 | A kind of unmanned plane with self-powered ability |
| CN107233674A (en) * | 2017-05-23 | 2017-10-10 | 中铁十二局集团有限公司 | A kind of falling from high altitude security protection system of infrared monitoring |
| CN110127483A (en) * | 2019-05-28 | 2019-08-16 | 苏州台菱电梯有限公司 | A kind of elevator faults rescue system |
| CN110482383A (en) * | 2019-09-21 | 2019-11-22 | 中科鼎盛电梯科技江苏有限公司 | A kind of elevator traction machine buffer unit |
| CN116553330B (en) * | 2023-06-25 | 2023-10-20 | 江苏爱默生电梯有限公司 | Elevator car buffer device |
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| JP4698845B2 (en) * | 2001-01-11 | 2011-06-08 | 三菱電機株式会社 | Elevator shock absorber |
| KR100469967B1 (en) * | 2003-05-07 | 2005-02-02 | 주식회사 지암메디테크 | Having a buffer elevator car |
| KR20080004878U (en) * | 2007-04-20 | 2008-10-23 | 최정일 | Hoistway structure of elevator |
| CN201151597Y (en) * | 2007-12-28 | 2008-11-19 | 日立电梯（中国）有限公司 | Elevator buffer device |
| CN201211990Y (en) * | 2008-06-04 | 2009-03-25 | 日立电梯（中国）有限公司 | Elevator buffer device |
| CN201908424U (en) * | 2011-01-19 | 2011-07-27 | 王玉臣 | Falling injure-preventing elevator shaft |
| CN202379557U (en) * | 2011-12-24 | 2012-08-15 | 王玉臣 | Falling injury prevention protection device in elevator shaft |
| CN103058035A (en) * | 2012-12-25 | 2013-04-24 | 王宝根 | Elevator anti-falling safety net |
| CN103318724B (en) * | 2013-07-08 | 2016-03-16 | 白波 | A kind of elevator crusherbull zone fender guard |
| CN203699588U (en) * | 2013-12-26 | 2014-07-09 | 徐建新 | Liftway personnel falling protection system |
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