CN205170104U - Retention device that elevator falls - Google Patents

Retention device that elevator falls Download PDF

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Publication number
CN205170104U
CN205170104U CN201520931180.5U CN201520931180U CN205170104U CN 205170104 U CN205170104 U CN 205170104U CN 201520931180 U CN201520931180 U CN 201520931180U CN 205170104 U CN205170104 U CN 205170104U
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CN
China
Prior art keywords
car
elevator
positioning plate
air bag
electronic controller
Prior art date
Application number
CN201520931180.5U
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Chinese (zh)
Inventor
张松林
左阳
李雪
Original Assignee
河南机电高等专科学校
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Publication date
Application filed by 河南机电高等专科学校 filed Critical 河南机电高等专科学校
Priority to CN201520931180.5U priority Critical patent/CN205170104U/en
Application granted granted Critical
Publication of CN205170104U publication Critical patent/CN205170104U/en

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Abstract

The utility model particularly relates to a retention device that elevator falls, the purpose provides a simple structure, with low costs, safe and reliable, effectively protects the safety coefficient that falls that prevents of passenger's safety. This system includes the gasbag subassembly, the gasbag subassembly includes air bag, gas generator, ignition, electronic controller, it is downthehole that placing of setting up is improved level at elevator door opening below, elevartor shaft lateral wall to the setting of gasbag subassembly, for being equipped with the recess on the lateral wall that is equipped with the elevartor shaft opposite side of placing the hole, set up speedtransmitter, height sensor in the car, speedtransmitter, height sensor's output signal sends electronic controller to. When the car took place to fall, its below was moved immediately apart from car nearest one or several gasbag subassembly and is opened air bag, and the speed that makes the car fall reduces rapidly to stopping and since the car to fall the impact force less, can effectual protection passenger health safety.

Description

A kind of retaining means of used during elevator falling
Technical field
The utility model relates to elevator safety technical field, is specifically related to a kind of retaining means of used during elevator falling.
Background technology
Current Lift car type elevator is all provided with emergency braking apparatus, there is safety failure, time as abnormal in elevator speed, usually produce braking by brake shoe gripping elevator guide rails, but when cage guide fracture or when there is other fault, emergency braking apparatus can lose efficacy and cannot work; When car is in higher floor, the safety of passenger cannot be guaranteed.Rupture at guide rail; when car falls; have following several to the safety precautions of passenger in car: bottom cabin elevator, shock absorber is installed; as in prior art CN201320894008; in the bottom of car, air bag component is set; rely on the impulsive force during shock absorber alleviation elevator landing bottom cage bottom or elevator when falling, bottom elevator, also can be provided with shock absorber simultaneously, increase the safety of car.This safety method can protect passenger for the Lift car type elevator that floor is lower; but for the Lift car type elevator that floor is higher; impulsive force when it falls is very large; huge inertia is produced when car falls; shock absorber is often difficult to play a protective role; cause passenger to be subject to grievous injury, and if passenger will be protected, then the cost of shock absorber can be very high.And car cannot in braking in way of falling, elevator related equipment also can damage because shock of a fall power is excessive, as being difficult to open after car door damage, and rescue difficulty.Such safety method often can only fall to car and protect, and for the situation that car is rushed to summit, needs to set up shock absorber at car top and elevator top.
Another kind of safety precautions is at car arranged outside stop mechanism, by stop mechanism and elevator sidewall contact friction braking.As kind of the kind fender guard of in prior art CN200410014245, there is containing one the clamping body of certain length, a side of clamping body one end having the groove for containing cage guide.The width of this groove is greater than the width of cage guide.This fender guard preventing elevator overspeed, fall, not only comformability is good, range of use is wide, productive costs is low, also can simplify production program.Be applicable to braking when lift car appearance hypervelocity, situation of falling.Technology in this patent may occur that access to elevators sidewall often causes friction coefficient to reduce because of moist simultaneously, increases the risk of stop mechanism inefficacy because stop mechanism cannot action and the danger of losing efficacy.When car is braked in elevator, the also stop place of car after uncontrollable braking, stay position between two floors as stopped car, car door is difficult to open, and cannot carry out salvage work.
Also have a kind of mode to be the safety rails contact friction braking arranged separately in elevator, additionally can increase a set of guide rail mechanism like this, add the difficulty of equipment cost and later maintenance maintenance.
Utility model content
The utility model object is to provide that a kind of structure is simple, cost is low, safe and reliable, the retaining means of the used during elevator falling of available protecting passenger safety.
For realizing above-mentioned utility model object, the technical scheme that the utility model adopts is: a kind of retaining means of used during elevator falling, comprise air bag component, described air bag component comprises safety air bag, to the ignition device of the gas generator of airbag aeration, gas generator, ignition device is connected with electronic controller; Described air bag component is arranged on below elevator door opening, on elevator sidewall in horizontally disposed putting hole, is provided with groove relative to the sidewall of the elevator opposite side being provided with putting hole, and after described safety air bag ejects, its one end heads in groove; When the upper surface of described safety air bag contacts with cage bottom, cab is positioned at normal stop layers position; Arrange speed sensor, height sensor in described car, the output signal of described speed sensor, height sensor sends electronic controller to; Described elevator arranges speed sensor, pressure sensor in each elevator door opening position, and the output signal of described speed sensor, pressure sensor sends electronic controller to.
Preferably, elevator sidewall below each elevator door opening described is symmetrical arranged positioning plate, and positioning plate is positioned on the downside of putting hole, lower end and the elevator of described positioning plate are side walls hinged, the middle part of described positioning plate is connected with elevator sidewall by spring, the top of described positioning plate is fixed by electronic latch, and described electronic latch is connected with electronic controller.
Preferably, described positioning plate is chamfer triangle, and the leg-of-mutton acute angle of chamfer is positioned at lower end, and another right angle is positioned at upper end and is positioned at the recess of elevator sidewall, positioning plate fixes wearing layer towards the plate face of elevator sidewall, and the positioning plate dislocation of described upper and lower floor position is arranged.
Preferably, described positioning plate receives the signal of electronic controller when car falls, and produces action; When car is rushed to summit, positioning plate does not receive the signal of electronic controller.
Preferably, described putting hole, air bag component, groove are arranged on below the elevator door opening of every floor, or are arranged on below one of them the elevator door opening between adjacent several stop layers.
Preferably, the telltale that can receive electronic controller output signal is set in described car, described telltale display car rises, actual acceleration value when declining and car rise, maximum safe acceleration value when declining.
Preferably, be provided with safety switch in described car, the output signal of described safety switch sends electronic controller to.
Preferably, described cage bottom and top are provided with elastic buffering pad, and the rigid element at cage bottom and top wraps up by described elastic buffering pad completely.
Preferably, described putting hole has the installation check hole of vertical direction away from one end of elevator door opening, and upper end, described installation check hole arranges transparency window, and the upper surface of described transparency window is consistent with this stop layers floor surface height.
The utility model has following beneficial effect: when car falls; one or several air bag component action airbag opening immediately nearest apart from car below it; the speed that car is fallen is decreased to stopping rapidly; because the shock of a fall power of car is less; passenger's body safety can be protected by actv.; the integral structure of car also can not sustain damage; simultaneously because air bag component is arranged on below stop layers elevator door opening; when car is fallen on safety air bag; car door and elevator door position adapt, and rescue group can open rapidly car door rescue passenger.When car is rushed to summit, one above it or several air bag component action airbag opening immediately, available protecting passenger.
Accompanying drawing explanation
Fig. 1 is the structural representation of car when normally running downwards;
Fig. 2 is the structural representation of car safety system action when falling;
Fig. 3 is the structural representation of car when normally upwards running;
Fig. 4 is the structural representation of car safety system action when rushing to summit;
Fig. 5 is that B in Fig. 1 is to schematic diagram;
Fig. 6 is control principle drawing of the present utility model.
Detailed description of the invention
As shown in figures 1 to 6, a kind of retaining means of used during elevator falling, comprises air bag component 1, and described air bag component 1 comprises safety air bag 11, to the ignition device of the gas generator of airbag aeration, gas generator, ignition device is connected with electronic controller 12.Described air bag component 1 is arranged on below elevator door opening, on elevator sidewall in horizontally disposed putting hole 31, is provided with groove relative to the sidewall of the elevator opposite side being provided with putting hole 31; Arrange speed sensor 53, height sensor 54 in described car 51, the output signal of described speed sensor 53, height sensor 54 sends electronic controller 12 to.Described elevator arranges speed sensor 53, the pressure sensor 57 of detection speed or acceleration/accel in each elevator door opening 52 position, and the output signal of described speed sensor 53, pressure sensor 57 sends electronic controller 12 to.Can guarantee further to detect in time with the double check of elevator in lift car, accurately, avoid undetected looking into.The principle of work being limited by speed sensor itself has certain limitation, so the utility model adds pressure sensor 57, pressure sensor 57 can detect the draught head formed in elevator under abnormal elevator high-speed case.Because pressure sensor 57 is different from acceleration/accel speed sensor 53 principle of work, therefore can play complementation, avoid a certain detection to lose efficacy.
Described elevator is provided with groove relative to the sidewall of the opposite side being provided with putting hole 31, when safety air bag 11 is opened, its one end heads in groove, at this moment the upper surface of safety air bag 11 contacts with bottom car 51, cab 51 is made to rest on normal stop layers position, the position between car door and elevator door opening 52 can be made like this to be in car Normal residence position, to facilitate rescue group to open car door in time and carry on rescue work.
When described car 51 falls, electronic controller 12 receives the speed sensor 53 of car 51, the output signal of height sensor 54, and the safety air bag 11 being positioned at nearest below car 51 one or several air bag component 1 ejects; When described car 51 is rushed to summit, electronic controller 12 receives the speed sensor 53 of car 51, the output signal of height sensor 54, and the safety air bag 11 being positioned at nearest above car 51 one or several air bag component 1 ejects.For the car 51 that load capacity is larger, can putting hole 31, air bag component 1, groove be arranged on below the elevator door opening 52 of every floor, when car falls or rush to summit, one or several safety air bag 11 can be used to bear the impact of car, the ability that safety air bag withstands shocks can be reduced like this, reduce the expense of safety air bag.For the car 51 that load capacity is less, also putting hole 31, air bag component 1, groove can be arranged on below one of them the elevator door opening 52 between adjacent several stop layers, equipment installation and maintenance expense can be reduced like this.
Preferably, elevator sidewall below each elevator door opening 52 described is symmetrical arranged positioning plate 2, and positioning plate 2 is positioned on the downside of putting hole 31, lower end and the elevator of described positioning plate 2 are side walls hinged, the middle part of described positioning plate 2 is connected with elevator sidewall by spring, and the top of described positioning plate 2 is provided with pin-and-hole, and the electronic latch coordinated with pin-and-hole is fixed on elevator sidewall, electronic latch is connected with electronic controller 12, is controlled by electronic controller 12.Time elevator normally runs, electronic latch inserts pin-and-hole, fixing positioning plate 2, when elevator speed is abnormal, electronic controller 12 controls electronic latch and exits pin-and-hole, and positioning plate 2 ejects, the hinge-point of positioning plate 2 under the action of the spring around its underpart rotates, positioning plate 2 is opened, and keeps level, and contact with safety air bag 11 lower surface.The impulsive force that positioning plate 2 and safety air bag 11 can be allowed so jointly to bear car 51 fall, increases safety.For ease of observing in Fig. 2, eliminate the position of some door openings 52.
When car 51 shock of a fall power is excessive, below it safety air bag 11 is damaged, when car 51 continues to fall, a positioning plate 2 below it is oppressed by car 51, destroys spring, the speed of buffer falling.But positioning plate 2 can't be damaged, at this moment car 51 cushions by the safety air bag 11 that other stop layers below it are opened and positioning plate 2.When car 51 is rushed to summit, because its impulsive force is less than impulsive force when falling, then only to be withstood shocks power by the safety air bag 11 above car 51, now positioning plate 2 does not receive the signal of electronic controller 12, and the electronic latch on it is failure to actuate.
More optimize, described positioning plate 2 is in chamfer triangle, the leg-of-mutton acute angle of chamfer is positioned at lower end, another right angle is positioned at upper end and is positioned at the recess of elevator sidewall, positioning plate 2 fixes wearing layer 21 towards the plate face of elevator sidewall, the positioning plate 2 of described upper and lower floor position misplaces and arranges, as shown in Figure 5.The positioning plate 2 of different floor can be utilized like this to rub with lift car bottom squeeze, slow down lapse rate.But do not cause the impact of rigidity.
In described car 51, speed sensor 53 is set, it can be the inertial speed sensor arranged in car 51, also can be that distance measuring type speed sensor is set at cage bottom, described cage bottom is also provided with height sensor 54, described height sensor 54 can be laser ranging formula, also can be ultrasonic ranging formula, the floor position signal that car also can be used original be as the altitude signal of car.The output signal of described speed sensor 53, height sensor 54 makes wirelessly to send electronic controller 12 to.
When elevator normally travels, air bag component 1 and positioning plate 2 are failure to actuate, when the guide rail fracture of car 51 causes car 51 to fall, speed sensor 53 in car 51, height sensor 54 gathers accekeration and car height, according to the position residing for the size of acceleration/accel and car, degree of will speed up abnormal signal passes to the one or more electronic controllers 12 be now positioned at below car 51, electronic controller 12 sends instruction and makes ignition device, the gas that blast produces makes safety air bag 11 open in access to elevators, its one end heads in groove, electronic controller sends signal simultaneously, the electronic latch of positioning plate 2 bottom is allowed to unclamp, positioning plate 2 is rotated to being in level around the hinge-point on its top under the action of the spring, and contact with safety air bag 11 lower surface.Under the buffer action of safety air bag 11 and positioning plate 2, car 51 is parked in corresponding stop layers, now can open elevator door and the car door of this stop layers easily, carry out rescue action.When car 51 is rushed to summit because of fault, in it speed sensor 53, height sensor 54 gather accekeration and car height, according to the position residing for the size of acceleration/accel and car, degree of will speed up abnormal signal passes to the one or more electronic controllers 12 be now positioned at above car, electronic controller 12 sends instruction and makes ignition device, airbag opening 11, makes car stop rushing to summit.
The telltale 55 that can receive electronic controller 12 output signal is set in described car 51, described telltale 55 shows that car 51 rises, actual acceleration value when declining and car 51 rise, maximum safe acceleration value when declining.In described car, 51 are also provided with safety switch 56, and the output signal of described safety switch 56 sends electronic controller 12 to.If when car falls or rushes to summit, speed sensor 53 does not send instruction to electronic controller 12 because of fault, at this moment the passenger in car can judge whether to occur danger by the car acceleration value of display on observation display 55, and manually press safety switch 56, described safety switch 56 sends instruction to the electronic controller 12 of relevant position, carries out emergency braking.
Better embodiment is; bottom described car 51 and top is provided with elastic buffering pad; described elastic buffering pad can be elastomeric material; also can be that foamed materials is made; the rigid element at car bottom 51 and top wraps up by described elastic buffering pad completely; can contact with safety air bag 11 at car 51 like this, safety air bag 11 is when contacting with positioning plate 2; available protecting safety air bag 11 not by bottom car 51 or the rigid element at top puncture; play buffer action further simultaneously, reduce the impulsive force that passenger is subject to.The upper surface of described positioning plate 2 also can wrap up elastic buffering pad, can puncture by the not limited plate 2 of protecting safety airbag 11 like this, increases buffer capacity further simultaneously.

Claims (9)

1. a retaining means for used during elevator falling, comprises air bag component (1), and described air bag component (1) comprises safety air bag (11), to the ignition device of the gas generator of airbag aeration, gas generator, ignition device is connected with electronic controller (12); It is characterized in that: described air bag component (1) is arranged on elevator door opening (52) below, on elevator sidewall in horizontally disposed putting hole (31), groove is provided with relative to the sidewall of the elevator opposite side being provided with putting hole (31), after described safety air bag (11) ejects, its one end heads in groove; When the upper surface of described safety air bag (11) contacts with car (51) bottom, cab (51) is positioned at normal stop layers position; Arrange speed sensor (53), height sensor (54) in described car (51), the output signal of described speed sensor (53), height sensor (54) sends electronic controller (12) to; Described elevator arranges speed sensor (53), pressure sensor (57) in each elevator door opening (52) position, and the output signal of described speed sensor (53), pressure sensor (57) sends electronic controller (12) to.
2. the retaining means of a kind of used during elevator falling according to claim 1, it is characterized in that: the elevator sidewall of each elevator door opening (52) below described is symmetrical arranged positioning plate (2), and positioning plate (2) is positioned at putting hole (31) downside, lower end and the elevator of described positioning plate (2) are side walls hinged, the middle part of described positioning plate (2) is connected with elevator sidewall by spring, the top of described positioning plate (2) is fixed by electronic latch, and described electronic latch is connected with electronic controller (12).
3. the retaining means of a kind of used during elevator falling according to claim 2, it is characterized in that: described positioning plate (2) is in chamfer triangle, the leg-of-mutton acute angle of chamfer is positioned at lower end, another right angle is positioned at upper end and is positioned at the recess of elevator sidewall, positioning plate (2) fixes wearing layer (21) towards the plate face of elevator sidewall, and positioning plate (2) dislocation of described upper and lower floor position is arranged.
4. the retaining means of a kind of used during elevator falling according to claim 3, is characterized in that: described positioning plate (2) receives the signal of electronic controller (12) when car (51) falls, and produces action; When car (51) is rushed to summit, positioning plate (2) does not receive the signal of electronic controller (12).
5. the retaining means of a kind of used during elevator falling according to claim 1, it is characterized in that: described putting hole (31), air bag component (1), groove are arranged on elevator door opening (52) below of every floor, or be arranged on one of them elevator door opening (52) below between adjacent several stop layers.
6. the retaining means of a kind of used during elevator falling according to claim 1, it is characterized in that: the telltale (55) that can receive electronic controller (12) output signal is set in described car (51), described telltale (55) display car rise, decline time actual acceleration value and car rise, decline time maximum safe acceleration value.
7. the retaining means of a kind of used during elevator falling according to claim 1, is characterized in that: be provided with safety switch (56) in described car (51), and the output signal of described safety switch (56) sends electronic controller (12) to.
8. the retaining means of a kind of used during elevator falling according to claim 1, is characterized in that: described car (51) bottom and top are provided with elastic buffering pad, and the rigid element at car (51) bottom and top wraps up by described elastic buffering pad completely.
9. the retaining means of a kind of used during elevator falling according to claim 1, it is characterized in that: described putting hole (31) has the installation check hole (32) of vertical direction away from one end of elevator door opening (52), described installation check hole (32) upper end arranges transparency window (33), and the upper surface of described transparency window (33) is consistent with this stop layers floor surface height.
CN201520931180.5U 2015-11-20 2015-11-20 Retention device that elevator falls CN205170104U (en)

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CN201520931180.5U CN205170104U (en) 2015-11-20 2015-11-20 Retention device that elevator falls

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105253734A (en) * 2015-11-20 2016-01-20 河南机电高等专科学校 Fall-preventing emergency device for elevator
CN105438914A (en) * 2016-01-07 2016-03-30 西华大学 Car type elevator anti-falling safety system
CN105858401A (en) * 2016-06-08 2016-08-17 高清春 Ejection air bag for elevator shaft
CN106115409A (en) * 2016-08-31 2016-11-16 江苏创力电梯部件有限公司 A kind of lift car fall arrest bearing device
CN108706420A (en) * 2018-06-08 2018-10-26 重庆大学 Used during elevator falling buffer protection system
CN109403680A (en) * 2018-10-30 2019-03-01 安徽华星智能停车设备有限公司 A kind of adjustable intelligent parking apparatus vehicle bracket

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105253734A (en) * 2015-11-20 2016-01-20 河南机电高等专科学校 Fall-preventing emergency device for elevator
CN105438914A (en) * 2016-01-07 2016-03-30 西华大学 Car type elevator anti-falling safety system
CN105438914B (en) * 2016-01-07 2017-10-17 西华大学 A kind of Lift car type elevator anti-falling safe system
CN105858401A (en) * 2016-06-08 2016-08-17 高清春 Ejection air bag for elevator shaft
CN106115409A (en) * 2016-08-31 2016-11-16 江苏创力电梯部件有限公司 A kind of lift car fall arrest bearing device
CN108706420A (en) * 2018-06-08 2018-10-26 重庆大学 Used during elevator falling buffer protection system
CN109403680A (en) * 2018-10-30 2019-03-01 安徽华星智能停车设备有限公司 A kind of adjustable intelligent parking apparatus vehicle bracket

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Granted publication date: 20160420

Termination date: 20181120