CN103738806A - Lift shaft people falling protection system - Google Patents
Lift shaft people falling protection system Download PDFInfo
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- CN103738806A CN103738806A CN201310728276.7A CN201310728276A CN103738806A CN 103738806 A CN103738806 A CN 103738806A CN 201310728276 A CN201310728276 A CN 201310728276A CN 103738806 A CN103738806 A CN 103738806A
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Abstract
The invention discloses a lift shaft people falling protection system which comprises a people falling buffering device (1), an air source device (2), monitoring devices (3) and an electronic control system (4). The people falling buffering device (1) comprises a buffering cushion (1.1) and a buffering cylinder group (1.7), the buffering cushion is arranged above the buffering cylinder group, the height of the whole people falling buffering device is lower than that of a lift car squatting tank buffer (5) by 30-100mm, the buffering cylinder group comprises an outer cover (1.8) and a cylinder (1.9), the stroke of the cylinder is larger than 150mm, the air source device is arranged at the bottom of a lift shaft, the monitoring devices are composed of sensors and arranged along an inner wall of the lift shaft at intervals, a lithium battery is adopted as an electronic control system power supply, and the electronic control system power supply comprises a monitoring loop, a cylinder ejection loop, a cylinder returning loop and a test loop. The lift shaft people falling protection system can reduce risks of casualties caused by the fact that people falling to a well fall to the squatting tank buffer, is reusable and easy to maintain and can still serve protection effect under the conditions of main supply outage.
Description
Technical field
The present invention relates to a kind of personnel protective system that falls, specifically a kind of elevator hoistways personnel protective system that falls, belongs to elevator safety protection field.
Background technology
Along with social development, the use of elevator is more and more general, from original, only in commercial mansion, hotel, use, be transitioned in places such as office building, residential buildings and use, the most general with vertical lift elevator, popularizing of this vertical lift elevator, has brought facility to people's life, but incident elevator accident also increases gradually, people also more and more start to pay close attention to the safety prevention measure of vertical lift elevator.
At present common lift protects measure is a lot, generally 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 protection that the angle from preventing passenger in lift car pendant well and then protection car is carried out, but at elevator door because of artificial origin or non-artificial reason is improper opens, and lift car is not again in the situation that of this layer of stop, or elevator has a power failure suddenly, in the situation of passenger because of panic positive opening car door, very easily there is personnel's falling accident.
The existing personnel protective system that falls is generally that shock absorber is set in hoistway bottom; or relevant position arranges life net that can eject etc. in hoistway; by fall situation moving according to monitoring situation Sensor monitoring personnel such as being arranged in elevator hoistways vertical uniform infrared pickoff; and then reach fall personnel's object of protection; this protective system can reach the object of lifesaving, but also has following defect:
1. because shock absorber is arranged on hoistway bottom, therefore its thickness can not exceed the height that prevents lift car crouching tank energy disperser, otherwise can the operation of elevator be produced and be interfered, affect the stop of lift car at the bottom, the upper surface that so just causes shock absorber is not whole flexible buffer face, and also comprises the hard end face at crouching tank energy disperser top, therefore, if personnel crash into hoistway, drop on above rather than above the flexible buffer face of shock absorber of crouching tank energy disperser, can cause equally injures and deaths;
2. not only can cushion lift car, but also can cushion the personnel's that fall the shock absorber with supple buffer layer, and when normal use, during the elevator car arrives bottom, can touch cushion layer, therefore buffer-layer surface is fragile;
3. can eject the apparatus structure relative complex of life net, must calculate accurately and just can reach the life net of ejection and coordinating of fixed hook, and disposable use often, recycling rate of waterused is low, and dismounting is very complicated;
4. traditional protective system generally must competence exertion effect in the situation that having civil power, once elevator power failure installs inoperative.
Summary of the invention
For the problems referred to above, the invention provides a kind of elevator hoistways personnel protective system that falls, can when falling, the personnel of having monitored can effectively protect human body, and be convenient to safeguard, reusable, and can when elevator power failure, bring into play equally protective effect.
For achieving the above object, this elevator hoistways personnel protective system that falls comprises personnel 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 being also fixedly connected with it of base plate above, is equipped with the hole that allows car crouching tank energy disperser to pass through on cushion layer and base plate; Bounce cylinder group is at least set to two, and its top center symmetry is fixedly installed on the baseplane of cushion rubber base plate, and elevator hoistways bottom is fixed in its bottom, and bounce cylinder group comprises cylinder, and the stroke of cylinder is greater than 150mm;
Compressed air source unit is arranged on elevator hoistways bottom, 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 through being connected with the admission port of storage tank with the gas circuit pipeline of 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 comprised of sensor, is arranged on elevator hoistways inwall, along elevator hoistways, equidistantly arranges;
Electric-control system comprises power supply and central process unit, power acquisition is electrically connected with lithium cell and with civil power, central process unit is electrically connected with power supply, monitoring device is electrically connected with central process unit, and electric-control system comprises that electric-control system 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, being placed on the cylinder body outside of cylinder and its bung position is provided with and limits the spacing ring that it 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 elevator hoistways bottom, and the other end peaks at the spacing ring place of outer cover; Outer cover bottom arranges lockout mechanism, and lockout mechanism is opened and locking by the solenoid control that is fixedly installed on elevator hoistways bottom, 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 with respect 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 being also 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 gas circuit pipeline, the electromagnetic pneumatic shutoff valve of check 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, respectively through being communicated with storage tank with the gas circuit pipeline of check valve.
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 being 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 fall protective system owing to being provided with the personnel that can air pressure the eject shock absorber that falls, therefore when the personnel of having detected crash into elevator hoistways, storage tank is inflated to lower chamber of air cylinder inflation, while 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, has therefore reduced pendant well personnel and dropped on the risk that causes injures and deaths above crouching tank energy disperser; During due to normal condition, personnel fall the height of shock absorber lower than the height of lift car crouching tank energy disperser, therefore when elevator normally moves, do not affect the stop of lift car at the bottom, and buffer-layer surface are not fragile; Owing to adopting the lifting of the shock absorber that can quick operated cylinder control personnel falls, 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, connect the lithium cell DC supply of civil power, therefore the in the situation that of mains failure, this protective system still can be brought into 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 can learn fast personnel's falling accident, be convenient to very first time treatment pendant well personnel.
Accompanying drawing explanation
Fig. 1 is the personnel of the present invention structural representations of shock absorber after ejecting that fall;
Fig. 2 is the personnel of the present invention structural representations of shock absorber while not ejecting that fall;
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 hoistways bottom and elevator car roof;
Fig. 6 is electrical schematic diagram of the present invention.
In figure: 1, personnel's shock absorber that falls, 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.
The specific embodiment
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 protective system that falls comprises personnel 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 is lower than the end face 30～100mm of car crouching tank energy disperser 5, can guarantee like this elevator in the stop of the bottom and not destroy the end face of cushion rubber 1.1;
Cushion rubber 1.1 comprises cushion layer 1.2 and base plate 1.6, cushion layer 1.2 is arranged on being also fixedly connected with it of base plate 1.6 above, on cushion layer 1.2 and base plate 1.6, be equipped with the hole that allows car crouching tank energy disperser 5 to pass through, be 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, its top center symmetry is fixedly installed on the baseplane of cushion rubber base plate 1.6, its bottom is fixedly connected on elevator hoistways bottom, bounce cylinder group 1.7 comprises cylinder 1.9, the stroke of cylinder 1.9 is greater than 150mm, guarantees that cylinder 1.9 ejects the upper plane of rear cushion rubber 1.1 higher than the end face of car crouching tank energy disperser 5.
Compressed air source unit 2 is arranged on elevator hoistways bottom, 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 through being connected with the admission port of storage tank 2.3 with the gas circuit pipeline of check valve, arranging of check valve guaranteed that the gas that is 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 normalities are closure states; Storage tank 2.3 inside are 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.
Electric-control system 4 comprises power supply 4.1 and central process unit 4.2, power acquisition is electrically connected with lithium cell and 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.
Cushion rubber 1.1 can rise more quickly when making monitoring device 3 detect that personnel fall well, and the potential energy in the time of can further absorbing pendant well personnel collision buffering pad 1.1, and then further reduce personal casualty rate, 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, be placed on the cylinder body outside of cylinder 1.9, and its bung position is provided with limits the spacing ring that it 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 are against elevator hoistways bottom, and the other end peaks at the spacing ring place of outer cover 1.8, outer cover 1.8 bottoms arrange lockout mechanism 1.11, and lockout mechanism 1.11 is opened and locking by electromagnetic valve 1.12 controls that are fixedly installed on elevator hoistways bottom, and electromagnetic valve 1.12 is electrically connected with central process unit 4.2, cylinder 1.9 piston end end face centers arrange negative thread, cushion rubber 1.1 and outer cover 1.8 arrange spring return function through hole with respect to the position of cylinder piston end negative thread.
Potential energy while falling well personnel collision buffering pad 1.1 in order can fully to absorb, and then further reduce personal casualty rate, 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 being also fixedly connected with it of spring bed course 1.3 above, and spring bed course 1.3 bottom surfaces are fixedly connected with the upper surface of base plate 1.6.
For the elevator hoistways of skyscraper, potential energy while falling well personnel collision buffering pad 1.1 in order can further to absorb, and then reduction 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 are provided with fast aeration element, fast aeration element can adopt the fast aeration element in safe automobile air bag, and can be set to many; Air bag layer 1.5 is connected with storage tank 2.3 by the gas circuit pipeline with check valve, electromagnetic pneumatic shutoff valve successively, the gas that generation while having guaranteed the work of fast aeration element is set of check valve 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.
For enough atmospheric pressures can be provided, scheme as a further improvement on the present invention, the quantity of described compressed air source unit 2 is set at least two, respectively through being communicated with storage tank (2.3) with the gas circuit pipeline of check valve.。
In order to guarantee that the whole personnel shock absorber 1 that falls can evenly bear whereabouts impulsive force 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, and its bottom is fixedly connected on elevator hoistways bottom.
As shown in Figure 6, for can be when there is personnel 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, elevator power supply is forced closed, lift car no longer moves, warning circuit can be realized warning simultaneously, the hoistway emergency light that is arranged at hoistway bottom is opened simultaneously, convenient pendant well personnel ask for help by emergency telephone.
For can protection power source 4.1, prevent from overcharging and cause battery to damage to lose efficacy, scheme as a further improvement on the present invention, described power supply 4.1 is 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 with respect to the position of cylinder piston, therefore, scheme as a further improvement on the present invention, can rise to realize after protection falls well personnel function at cushion rubber 1.1 and pass through spring return function instrument 6 by spring 1.10 returns, 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 cooperatively interacting with the negative thread of cylinder piston end end face center setting, its middle and lower part is provided with the support ring 6.1 being fixedly connected with it, the form of connector is arranged in its upper end, can connect other electric rotating tools, or be arranged to arcly or "T"-shaped, can M/C rotate.
For can be using cliding friction, the use that reduce during this spring return function instrument 6 base plate 1.6 more laborsaving, scheme as a further improvement on the present invention, support ring 6.1 bottoms add surface bearing 6.2.
This elevator hoistways personnel fall before protective system installation, need to be to central process unit 4.2 input routines, this program can judge the height of personnel apart from shaft bottom that fall according to the signal that is vertically equidistantly arranged on the sensor feedback of different floors in elevator hoistways, 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 have not detected that personnel fall, bounce cylinder group 1.7 is that to be positioned at stroke the most the next, be that cylinder 1.9 is positioned at the most the next and spring 1.10 of stroke 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 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 power supply 4.1 is charged, while reaching capping voltage, cut off civil power, protection power source 4.1 prevents from overcharging; Atmospheric pressure sensor feedback signal atmospheric pressure value in central process unit 4.2 receives storage tank 2.3 lower than set lower limit atmospheric pressure value time, sending signal enabling motor 2.1 drives air pump 2.2 to inflate storage tank 2.3, while reaching the upper limit atmospheric pressure value of setting, cut off motor 2.1 power supplys, with the gas circuit pipeline of check valve, guaranteed that the gas that is filled with storage tank 2.3 can not flow backwards back, guaranteed to remain in storage tank 2.3 atmospheric pressure value of setting.
When monitoring device 3 has detected that personnel fall, 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 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 resorptions by three-position electromagnetic air operated reversing valve 2.4, air pump 2.2 is to the interior inflation of storage tank 2.3, lockout mechanism 1.11 is disengaged locking, now, cushion rubber 1.1 discharges at spring 1.10 under the effect of elastic potential energy upsprings immediately, because the height of spring 1.10 is greater than the stroke of cylinder 1.9, therefore after the piston stroke of cylinder 1.9 is released completely, , also there is certain distance at the bucket end of piston tip and outer cover 1.8, and whole personnel fall the height of shock absorber 1 higher than the height at least 50～120mm of lift car crouching tank energy disperser.
When cylinder 1.9 and spring 1.10 eject, if when central process unit 4.2 does not need to open air bag layer 1.5 according to the impulsive force size judgement of calculating, central process unit 4.2 can not send instruction to fast aeration element and electromagnetic pneumatic shutoff valve, air bag layer 1.5 can inflatable open, pendant well personnel and the personnel shock absorber 1 that falls clashes into moment, first through spongy layer 1.4, spring bed course 1.3, absorption portion potential energy, if potential energy is large, continue to press down, Compress Spring 1.10, continue to absorb potential energy, after the bucket end of outer cover 1.8, contacts with the pistons end of cylinder 1.9, last compression cylinder 1.9 absorbs potential energy, progressive until absorb whereabouts potential energy completely, realize protection pendant well personnel's object.
When cylinder 1.9 and spring 1.10 eject, if when central process unit 4.2 need to be opened air bag layer 1.5 according to the impulsive force size judgement of calculating, central process unit 4.2 sends instruction to fast aeration element and electromagnetic pneumatic shutoff valve, make electric current flow through the squib of fast aeration element, the ignition media in squib is ignited in its heating, 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 is to air bag layer 1.5 supplemental inflatable, air bag layer 1.5 enriches the most at last, now, pendant well personnel and the personnel shock absorber 1 that falls clashes into moment, first clash into air bag layer 1.5, absorption portion potential energy, and then shock spongy layer 1.4, spring bed course 1.3, absorption portion potential energy again, if potential energy is large, continue to press down, Compress Spring 1.10, continue further to absorb potential energy, after the bucket end of outer cover 1.8, contacts with the pistons end of cylinder 1.9, last compression cylinder 1.9 absorbs potential energy, progressive until absorb whereabouts potential energy completely, thereby realize protection pendant well personnel.
When monitoring device 3 has detected that personnel fall, elevator power control circuit is forced closed elevator power supply, and lift car no longer moves, and can prevent that lift car decline from causing further injury to pendant well personnel; Warning circuit can pass to the external world by alerting signal the very first time; The hoistway emergency light that is arranged at hoistway bottom is opened simultaneously, and pendant well personnel can ask 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, after changing fast aeration element, air bag can be received, then with spring return function instrument 6, insert in cushion rubber 1.1 and the spring return function through hole of outer cover 1.8 with respect to the position setting of cylinder piston, by electric rotating tool or manual axial-rotation spring return function special tool, spring return function special tool bottom is threaded into cylinder 1.9 internal pistons, and then Compress Spring 1.10, after cylinder 1.9 piston tip contacted with the bucket end of outer cover 1.8, operate again cylinder return loop, storage tank 2.3 is inflated to cylinder 1.9 epicoeles by three-position electromagnetic air operated reversing valve 2.4, cylinder 1.9 piston retractions, and then the further Compress Spring 1.10 of drive cushion rubber 1.1, until lockout mechanism 1.11 is lower than electromagnetic valve 1.12 positions, locked, last retrograde rotation spring return function special tool unloads the fall return of shock absorber 1 of i.e. personnel of completing.
During conventional maintenance, can performance tests test loop, can realize check implement, thereby the parts that need are changed are changed.
As shown in Figure 5; this elevator hoistways personnel personnel of protective system shock absorber that falls that falls can be fixedly mounted on the top of lift car simultaneously; realization is to being in pendant well personnel's the protection of the above floor of lift car place floor; while being fixedly mounted on the top of lift car, the electric connection mode of itself and electric-control system 4 can be selected the mode of wireless connections or the mode of wired connection.
This elevator hoistways personnel protective system that falls not only can be applied to the elevator of vertical lift, can also be applied on all Lifting Convey equipment with vertical hoistway, as mine cage etc.
This elevator hoistways personnel protective system that falls can reduce pendant well personnel and drops on the risk that causes injures and deaths above crouching tank energy disperser; When elevator normally moves, do not affect the stop of lift car at the bottom, and buffer-layer surface is not fragile; Can realize return repeated usage, and return simple to operate, be easy to safeguard, non-once use; The in the situation that of mains failure, this protective system still can be brought into play the effect of protection; Can realize and learn fast personnel's falling accident, be convenient to very first time treatment pendant well personnel.
Claims (10)
1. the elevator hoistways personnel protective system that falls, comprises personnel fall shock absorber (1), monitoring device (3) and electric-control system (4), and monitoring device (3) is comprised of sensor, is arranged on elevator hoistways inwall, along elevator hoistways, equidistantly arranges; 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 bounce cylinder group (1.7) above, 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 being also fixedly connected with it of base plate (1.6) above, is equipped with the hole that allows car crouching tank energy disperser (5) to pass through on cushion layer (1.2) and base plate (1.6);
Bounce cylinder group (1.7) is at least set to two, its top center symmetry is fixedly installed on the baseplane of cushion rubber base plate (1.6), elevator hoistways bottom is fixed in its bottom, and 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 elevator hoistways bottom, 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 through being connected with the admission port of storage tank (2.3) with the gas circuit pipeline of 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. the elevator hoistways personnel according to claim 1 protective system that falls, 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, being placed on the cylinder body outside of cylinder (1.9) and its bung position is provided with and limits the spacing ring that it 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 elevator hoistways bottom, 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) is opened and locking by electromagnetic valve (1.12) control that is fixedly installed on elevator hoistways bottom, 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 with respect to the position of cylinder piston end negative thread.
3. the elevator hoistways personnel according to claim 1 and 2 protective system that falls, 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 being also 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. according to the protective system that falls of the elevator hoistways personnel described in claim 1 or 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 gas circuit pipeline, the electromagnetic pneumatic shutoff valve of check valve, and fast aeration element and electromagnetic pneumatic shutoff valve are electrically connected with central process unit (4.2).
5. according to the protective system that falls of the elevator hoistways personnel described in claim 4, it is characterized in that, the quantity of described compressed air source unit (2) is set at least two, respectively through being communicated with storage tank (2.3) with the gas circuit pipeline of check valve.
6. according to the protective system that falls of the elevator hoistways personnel described in claim 1 or 2, it is characterized in that, described bounce cylinder group (1.7) is set to four.
7. according to the protective system that falls of the elevator hoistways personnel described in claim 1 or 2, it 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 and verification test circuit.
8. according to the protective system that falls of the elevator hoistways personnel described in claim 1 or 2, it is characterized in that, described power supply (4.1) is provided with charge protection device.
9. according to the protective system that falls of the elevator hoistways personnel described in 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 cooperatively interacting with the negative thread of cylinder piston end end face center setting, its middle and lower part is provided with the support ring (6.1) being fixedly connected with it, and the form of connector is arranged in its upper end, or is arranged to arc or "T"-shaped.
10. the elevator hoistways personnel according to claim 8 protective system that falls, 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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| CN104176582A (en) * | 2014-08-12 | 2014-12-03 | 苏州台菱电梯有限公司 | Elevator anti-falling device and application method thereof |
| CN104276473A (en) * | 2014-03-19 | 2015-01-14 | 李志伟 | Anti-dropping device for car type elevator |
| CN105882946A (en) * | 2016-04-12 | 2016-08-24 | 刘洋 | Novel UAV (unmanned aerial vehicle) having self-powering capacity |
| CN106276462A (en) * | 2015-05-25 | 2017-01-04 | 江苏施塔德电梯有限公司 | Intelligent elevator stall protection system |
| 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 |
| 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 |
| WO2020238079A1 (en) * | 2019-05-28 | 2020-12-03 | 苏州台菱电梯有限公司 | Elevator fault rescue system and elevator |
| CN116553330A (en) * | 2023-06-25 | 2023-08-08 | 江苏爱默生电梯有限公司 | Elevator car buffer device |
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