CN101920878B - Elevator protection device - Google Patents
Elevator protection device Download PDFInfo
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- CN101920878B CN101920878B CN 201010227117 CN201010227117A CN101920878B CN 101920878 B CN101920878 B CN 101920878B CN 201010227117 CN201010227117 CN 201010227117 CN 201010227117 A CN201010227117 A CN 201010227117A CN 101920878 B CN101920878 B CN 101920878B
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- safety strap
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Abstract
The invention relates to an elevator protection device comprising a safety belt, a linked transmission device and a control device, wherein the safety belt is transversally arranged, and slidably and transversely fixed in a hoistway or at both sides of an outer hall door or the two sides of the inner hall door through the linked transmission device and is controlled by the control device to return to a protection height position or separate from the protection height position; and when workers who working aloft or other workers accidentally fall into the hoistway because the hall door is accidentally opened, the safety belt can urgently hitch the falling workers or be grabbed by the falling workers.
Description
Technical field
The present invention relates to a kind of elevator field, refer in particular to a kind of elevator protection device.
Background technology
Along with the development of society, skyscraper is also more and more, and more and more higher, as the vertical transportation instrument, the application of elevator is thereupon also more and more wider, even becomes people's life, the indispensable a kind of vehicle of work.As shown in Figure 1; in the prior art; when elevator because having occured when unusual such as oppressive, fault etc.; need the rescue group to pass through emergency opening Room door, enter that hoistway is rescued slow, maintenance or other checks in the process of operation, because Room door is opened unexpectedly; when enough anti-fall well security warning or safety method are not provided; cause the passenger, the personnel such as slow personnel, repair and maintenance that rescue fall hoistway accidentally, the safety misadventure that causes personal injury happens occasionally, and accounts for higher ratio in the elevator personnel casualty accidents.
Therefore, the invention provides a kind of elevator protection device, it can avoid opening the personal casualty that causes because of the accident of Room door in the situation that does not affect the normal operation of elevator.
Summary of the invention
The object of the present invention is to provide a kind of elevator protection device; the safety strap that it passes through in elevator hoistways or the both sides setting height(from bottom) of outer Room door is fit to; it can provide security warning and defencive function by actv.; or open in the situation that causes personnel accidentally to fall hoistway in Room door accident; this safety strap can impose protection, avoids personal casualty.
In order to reach the foregoing invention purpose, the invention provides following technical scheme:
A kind of elevator protection device; it includes: safety strap, linkage drive units and control setup; this safety strap horizontally set; and the both sides of being fixed in Room door in the hoistway that this safety strap slides by this linkage drive units or the both sides of the outer Room of hoistway door, and control this safety strap by this control setup and enter the protection height and position or leave the protection height and position.The door accident is opened when the Room, and when causing the unexpected pendant of aloft work personnel or other staff well, this safety strap can promptly entangle those who fall well, or grabs for those who fall well.
Preferably, this linkage drive units comprises:
A pair of fixed support, it is individually fixed in the both sides of Room door in the hoistway or the both sides of the outer Room of hoistway door;
The pair of sliding fulcrum, it is individually fixed in this on the fixed support;
A pair of draw gear, it is individually fixed in this on the fixed support, and the two ends of this safety strap are connected draw gear with this respectively, and this drives this safety strap to draw gear and along this slip fulcrum is moved up and down;
The a pair of spring that tightens up, it is vertically installed in respectively this to support bracket fastened bottom or top, and this end to draw gear is connected upper end or the lower end of tightening up spring with this respectively;
A pair of limit switch, it is arranged at respectively this to support bracket fastened end, is used for limiting this to moving on the draw gear or lower pan position.
Preferably, this draw gear comprises:
Sliding support, what this sliding support slided is located on each slip fulcrum, and this safety strap is connected with this sliding support, and this sliding support lower end or upper end are tightened up spring with this and be connected;
And electric machine, this electric machine provides power for the movement of this sliding support.
This draw gear is rotating machine, or directly is preferably linear electric motors, does not need to reset slip fulcrum, sliding support again.
For this safety strap can be fixed in suitable height and position; this elevator protection device also comprises Electromalgnetic locking mechanism; this Electromalgnetic locking mechanism includes: dead bolt; dead bolt hole; gangbar; the electromagnetic lock spring; the electromagnetism magnetic core that contains coil; this gangbar is located on each fixed support; this dead bolt and this gangbar cross connection; and this dead bolt hole is located on this sliding support; one end of this electromagnetic lock spring laterally is fixed on each fixed support; the other end is connected with this dead bolt; the movement of this dead bolt and this each sliding support of dead bolt hole engagement limits, and this dead bolt; this gangbar; spring and this electromagnetism magnetic core are positioned at and are fit to the protection At The Height.
This sliding support of this driven by motor and this safety strap move up and down at this slip fulcrum.Under the drive of this electric machine, when moving and touching this limit switch on this sliding support, motor stops action, this safety strap is in a suitable protection height and position, and this moment, this dead bolt cooperates with this dead bolt hole, and this sliding support and this safety strap are stuck in this place; When the action of this Electromalgnetic locking mechanism, when dead bolt is opened, self weight and tighten up under the effect of spring, this sliding support slides to up and down the bottom of slip fulcrum at this slip fulcrum.
Wherein, this control setup includes:
Signal input unit, this signal input unit are used for input this layer Room door switch or go ahead of the rest layer or call out the stops lamp or flat bed signal or car inductive switch control signal;
Choosing layer processing controls plate; it can enter control signal or leave control signal according to this signal input unit output; by controlling this Electromalgnetic locking mechanism action; under the effect of tightening up spring; control the position that this safety strap leaves the protection height; or by control electric machine draw this sliding support; control this safety strap and enter the protection height and position; when arriving the protection height; this sliding support bumps the limit switch action; electric machine is stopped automatically, and this sliding support is being protected height and position by the dead bolt seatbelt lock.
Alternatively be, have additional the car inductor on this choosing layer processing controls plate, whether be used for this car of induction in safe floor, this choosing layer processing controls plate cooperates with this signal input unit, determines whether to export to shield or enter control signal.
Alternatively be; set up address dial-up sequence information on this choosing layer processing controls plate; this choosing layer processing controls plate is connected with the elevator master control unit; pulse count according to the distance safe floor; allow signal in advance elevator protection device dock floor address sequence information and control; processed by the elevator protection device gating again, determine whether export the shielding control signal or enter control signal.
Preferably, in order to tackle various emergency situations, this linkage drive units is provided with hand push button, controls this safety strap and leaves protective position or enter the protection height and position.When elevator reparing and safety failure, can force this linkage drive units of control directly manually, when the maintenance lift operation, can force this safety strap shielding or recovery and protection height and position.
Preferably, this safety strap is made by flexible material, and it has certain bearing capacity.
Preferably, local or all be provided with magnetic on this safety strap, be convenient to touch the additional iron plate on the hoistway door, when lift car is not stopped this station, when directly passing through this elevator protection device, contain the magnetic safety strap and can prevent that the car door cutter is hooked to through out-of-date.
Preferably, have the caution color on this safety strap, and/or be printed with " elevator faults, No nearing! " etc. the caution statement, with the prompting people away from Room door.
Compared with prior art, the present invention has the following advantages:
1. by the both sides at the Room door safety strap is set, as the human body support belt of emergency survival function or grab effect, effectively protected personnel is fallen into the danger of hoistway, improves the safety of personnel's operation.
2. at this safety strap the caution word is set, tentatively plays prevention effect.
3. by cooperating with the existing signal input unit of elevator or setting up the car inductor or set up address dial-up sequence information, control the height and position of this safety strap, do not affect the normal operation of elevator.
Description of drawings
Fig. 1 prior art Room door accident is opened the scheme drawing that meets accident;
Fig. 2 a is the working state figure one of elevator protection device of the present invention;
Fig. 2 b is the working state figure two of elevator protection device of the present invention;
Fig. 2 c is the working state figure three of elevator protection device of the present invention;
Fig. 3 a is the guard mode figure one of elevator protection device of the present invention;
Fig. 3 b is the guard mode figure two of elevator protection device of the present invention;
Fig. 4 is the linkage drive units structural representation of elevator safety protection of the present invention;
Fig. 5 is the structural representation of the Electromalgnetic locking mechanism of elevator protection device of the present invention;
Fig. 6 is the working state figure of the Electromalgnetic locking mechanism of elevator protection device of the present invention;
Fig. 7 is the embodiment one of the control setup of elevator protection device of the present invention;
Fig. 8 is the embodiment two of the control setup of elevator protection device of the present invention;
Fig. 9 is the electric drive part of the recovery control of elevator protection device of the present invention;
Figure 10 is the electric drive part of the shielding control of elevator protection device of the present invention.
The specific embodiment
Shown in Fig. 2 a; elevator protection device of the present invention; it includes: safety strap 1, linkage drive units and control setup; this safety strap 1 is controlled this safety strap 1 by this control setup and is entered the protection height and position or leave the protection height and position by the both sides of being fixed in (or outer) Room door 4 in this hoistway that this linkage drive units slides.Protection height and position described herein refers to that one is fit to protection personnel's height and position, for example human abdomen's height and position.Open when Room door 4 accidents, when causing the unexpected pendant of aloft work person or other staff well, this safety strap 1 can promptly entangle those who fall well (shown in Fig. 3 a), or grabs (shown in Fig. 3 b) for those who fall well.
As shown in Figure 4, it has illustrated the structural representation of linkage drive units of the present invention.This linkage drive units comprises: a pair of fixed support 21, pair of sliding fulcrum 22, a pair of draw gear, a pair of spring 24 and a pair of limit switch 25 of tightening up.This adopts respectively screw to be fixed in the both sides of this Room door 4 to fixed support 21; This to slip fulcrum 22 be individually fixed in Room door 4 both sides on the fixed support 21; This is individually fixed in this on the fixed support 21 to draw gear, and the two ends of this safety strap 1 are connected draw gear with this respectively, and this drives this safety strap 1 to draw gear and along this slip fulcrum 22 is moved up and down together; Should be vertical at this to bottom or the top of fixed support 21 to tightening up spring 24, and tighten up spring 24 upper ends or lower end and be connected (present embodiment preferably this tighten up spring 24 be located at each support bracket fastened bottom) with an end of each draw gear, in the process that draw gear moves or moves down, assemble elastic force or discharge elastic force; This is arranged at respectively this end to fixed support 21 (preferably this is located at this to support bracket fastened upper end to limit switch to present embodiment) to limit switch 25, it is for moving or move down action on this draw gear of control, when moving on this draw gear and touching this limit switch 25, on stopping, moving this draw gear.
Wherein, each draw gear comprises: sliding support 231 and electric machine 232.This sliding support 231 is located on this slip fulcrum 22, and sliding support 231 is connected with this safety strap 1, and drives this safety strap 1 and move up and down along this slip fulcrum 22; Simultaneously, the lower end of this sliding support 231 or upper end are connected with upper end or lower end that this tightens up spring 24, and in the present embodiment, preferably the lower end of this sliding support 231 is connected with the lower end that this tightens up spring 24.This electric machine 232 provides power for the movement of this sliding support 231.As shown in Figure 9, the supply power 77 of electric machine 232, the first intermediate relay 76 act on the action of control electric machine 232 simultaneously with the second intermediate relay 80 of control safety strap 1 left and right sides.
In the present invention, this draw gear can directly be linear electric motors, does not need to set up sliding support again.
Consult simultaneously Fig. 5 and Fig. 6.For the suitable height and position that is fixed in that can be firm with this safety strap 1, this elevator protection device also comprises Electromalgnetic locking mechanism 5, and Electromalgnetic locking mechanism 5 is installed on each fixed support 21, and is in a suitable height.This Electromalgnetic locking mechanism 5 includes: dead bolt 51, dead bolt hole 52, gangbar 53, electromagnetic lock spring 54, contain the electromagnetism magnetic core 55 of coil (as shown in Figure 10 left and right sides electromagnetic lock coil 70); and electromagnetic lock control power supply 75 (as shown in figure 10); and this dead bolt 51, this dead bolt hole 52, this gangbar 53, electromagnetic lock spring 54 and this electromagnetism magnetic core 55; can be positioned at suitable protection At The Height, so that this safety strap 1 is fixed in suitable height.Wherein, gangbar 53 is located on this fixed support 21, and this dead bolt hole 52 is located on this sliding support 231, one end of this electromagnetic lock spring 54 laterally is fixed in this on the fixed support 21, the other end is connected with this dead bolt 51, this dead bolt 51 and these gangbar 53 cross connections, preferably be provided with perforation (scheming not shown) at dead bolt 51, this gangbar 53 is by perforation, and with 51 interlocks of this dead bolt, this dead bolt hole 52 is located on each sliding support 231, the movement of this dead bolt 51 and this each sliding support 231 of dead bolt hole 52 engagement limits.The principle of work of Electromalgnetic locking mechanism has belonged to prior art, and the present invention does not repeat them here.
Fig. 9 is the electric drive part of elevator protection device control of the present invention, and this part is used for 232 actions of control electric machine, referring to Fig. 9.When this electric machine 232 starts, be used for left and right sides electric machine coil 71 actions of this safety strap of traction about in the of 1, driving each sliding support 231 and this safety strap 1 moves up, this tightens up spring 24 and is progressively strained simultaneously, and assemble certain elastic force, when this safety strap 1 arrives suitable height, when each sliding support 231 touches limit switch 25 (namely touching left and right sides safety strap high-low limit switch 72), this electric machine 232 stops action, at this moment, the dead bolt 51 of this Electromalgnetic locking mechanism 5 fastens this dead bolt hole 52 automatically under the elastic force effect of electromagnetic lock spring, this safety strap 1 is fixed in herein; When the dead bolt 51 of this Electromalgnetic locking mechanism 5 open withdraw from dead bolt hole 52 after, 231 of sliding supports are tightened up under the effect of spring 24 at own wt and this, sliding support 231 and this safety strap 1 are displaced downwardly to the bottom of each fixed support 21.
Embodiment one:
Consult Fig. 7, it is the scheme drawing of the embodiment one of the control setup of elevator car safety of the present invention.This control setup includes: signal input unit 60 and choosing layer processing controls plate 61, and wherein, this choosing layer processing controls plate 61 preferably is installed on each floor, and this signal input unit 60 only need be installed on wherein one deck floor.This signal input unit 60 is used for output this layer Room door switch or go ahead of the rest layer or call out the stops lamp or flat bed signal control signal, and this signal input unit 60 has belonged to prior art, and the present invention does not repeat them here.Before elevator car arrives is installed the safe floor of this elevator protection device (hereinafter to be referred as safe floor), the lamp flickering display of calling out the stops, this choosing layer processing controls plate 61 is at first behind this layer of gating elevator protection device, and detect the signal of calling out the stops when effective, i.e. output shielding control signal 73 (as shown in figure 10), as shown in Figure 6, these Electromalgnetic locking mechanism 5 actions, dead bolt 51 is opened the dead bolt hole 52 that withdraws from each sliding support 231, each sliding support 231 and this safety strap 1 tighten up under the effect of spring 24 at own wt and this, are displaced downwardly to the bottom (shown in Fig. 2 c) of each fixed support 21; When this choosing layer processing controls plate 61 passes through to detect Room door switch, or the layer of going ahead of the rest, or the lamp of calling out the stops, or the signal such as flat bed signal, confirm that car leaves, it enters control signal 74 (as shown in figure 10) with output, after each draw gear 22 receives that this enters control signal 74, trigger and start this electric machine 232 work, drawing this moves up synchronously to sliding support 231 these safety strap 1 of drive, through behind this Electromalgnetic locking mechanism 5 and meet this limit switch 25, these electric machine 232 auto-breaking stop, the dead bolt 51 of this Electromalgnetic locking mechanism 5, under the promotion of electromagnetic lock spring 54, slip into this dead bolt hole 52, this is fixed in one suitably highly to sliding support 231, thereby will be fixed in suitable height (shown in Fig. 2 a) with this safety strap 1 that sliding support 231 is fixed.
Shown in Fig. 2 b, when the non-bus stop of lift car process, this choosing layer processing controls plate 61 does not have this layer of gating elevator protection device, and the safety strap 1 of this safe floor can keep the home position, does not play shielding action, and elevator is not affected through having.
The wherein effect of choosing layer processing controls plate 61, according to signal input unit 60, from apparatus for controlling elevator, choose existing unit control signal, such as Room door lock on-off signal, go ahead of the rest layer, the lamp of calling out the stops, flat bed signal lamp, flat bed signal etc., judge whether car rests against in this safe stop scope, be used for the output control signal.When Room door 11 is opened, and car can be on the position of protection height safety strap 1 not in the scope of this safe floor.Should select simultaneously layer processing controls plate 61, also export another control signal, and make car before stopping safe stop, and make the safety strap 1 of this bed device be in screening-off position.
Embodiment two:
Consult Fig. 8, it is the scheme drawing of the embodiment two of the control setup of elevator car safety of the present invention.Preferably, this choosing layer processing controls plate 61 increases by one or a pair of car inductor 62, simultaneously on the coaxial line of car inductor 62, on car upper and lower side or the lift-cabin door board, a reflector 63 (or magnetic isolation plate) respectively is installed, make car inductor 62 after all safe floors are received in advance layer signal, judge car be about to arrive at a station effectively after, automatically produce the shielding control signal 73 of this layer.Wherein, this car inductor 62 preferably is installed on each floor, and this reflector 63 is installed on the outer wall of car.Dead bolt hole 52 is withdrawed from dead bolt 51 action by torch magnetic lock device 5, and is tightening up under spring 24 and this effect to sliding support 231 weight at safety strap 1 two ends, synchronously bottom lower the sliding to (shown in Fig. 2 c).
This layer choosing layer processing controls plate 61 detects leaving away of cars by car inductor 62, and what automatically produce this layer enters control signal 74.The electric machine 232 startup work that is triggered, drawing each sliding support 231 moves up synchronously, through this Electromalgnetic locking mechanism 5 and after meeting this limit switch 25, these electric machine 232 outages stop action, the dead bolt 51 of this Electromalgnetic locking mechanism 5 buckles into this dead bolt hole 52, this sliding support 231 is fixed in one suitably highly, thereby will be fixed in suitable height (shown in Fig. 2 a) with the safety strap 1 that this sliding support 231 is fixed.
Embodiment three:
Preferably; in the elevator protection device of all safe floors; this choosing layer processing controls plate 61 increases address dial-up sequence information; and in the elevator master control unit; increase is about the part of control protective unit program; effect is same as in advance layer of output; the control signals such as lamp of calling out the stops; different is the address dial-up sequence information of also exporting bus stop; give all fender guards; the information that judgement and gating car are stopped; the inner subprogram that must increase about seat belt apparatus control of this elevator master control program: the input cage operation is in the pulse count of hoistway position height; the purpose stop; default displacement pulse number; the flat bed signal; manually shielding or restoring signal input etc. in the sedan-chair, output point of destination address sequence information; shielding; restoring signal etc.Fender guard becomes the peripheral hardware of elevator, by writing of master control internal processes, forces the functions such as control safety strap 1 action in the practicable car, makes the control safety strap more flexible.
According to the pulse count of cage operation in the hoistway height position, through the certain displacement pulse of predeterminable range purpose bus stop, produce bus stop address sequence information and shielding control signal or enter control signal.
Embodiment four:
All safe floors are when the elevator power-up initializing, and safety strap 1 all is in screening-off position.Safety strap often is in screening-off position, on the more not impact of use of elevator.Preferably; when the Room door switch signal of this choosing layer processing controls plate 61 by test example such as this safe floor, flat bed signal etc.; confirm that car is not when this layer level position; and Room door is opened; this choosing layer processing controls plate 61 enters control signal with output, and these motor draw gear 22 traction safety strap 1 enter protective position.After this safe floor Room door is closed, this choosing layer processing controls plate 61 will be exported and recover the shielding control signal, make safety strap be in normal screening-off position.But, before elevator will break main power source, the elevator protection device of all safe floors, except the bus stop layer of car, safety strap all needs to enter guard mode.In above-mentioned application examples, existing detailed description no longer repeats about the mechanism of control safety strap action step.
Preferably; in order to tackle various emergency situations; this linkage drive units is provided with hand push button 78 (as shown in figure 10) and cooperates with electric machine hand push button 79 (as shown in Figure 9), controls this safety strap and leaves protective position or enter the protection height and position.When elevator reparing and safety failure, can force this linkage drive units of control directly manually, in the maintenance lift operation, can force this safety strap to enter or the recovery and protection height and position.
In the present invention, this safety strap 1 is made by flexible material, and it has certain bearing capacity (such as the bearing capacity of 100kg), makes pendant well personnel can grab this safety strap 1, can not crash into shaft bottom (shown in Fig. 3 a, 3b).As preferably, shown in Fig. 2 b, this safety strap 1 is provided with magnetic 10; be convenient to touch the additional iron plate 12 in the hoistway door 11; when lift car is not stopped this safe floor, when directly passing through this elevator protection device, contain magnetic safety strap 1 and can prevent that the car door cutter is hooked to through out-of-date.Further, this safety strap local or all on, can have the caution color, can be printed with " elevator faults, No nearing! " etc. the caution statement, with the prompting personnel away from the Room, Room door or note the pendant well protection.
The above is preferred embodiment of the present invention only, and protection scope of the present invention is not limited to this, anyly all belongs within the protection domain of the present invention based on the equivalent transformation on the technical solution of the present invention.
Claims (10)
1. elevator protection device, it is characterized in that, it includes: safety strap, linkage drive units and control setup, this safety strap is lateral arrangement, and the both sides of being fixed in Room door in the hoistway that this safety strap slides by this linkage drive units or the both sides of the outer Room of hoistway door, and control this safety strap by this control setup and enter or leave the protection height and position;
Wherein, this linkage drive units comprises:
A pair of fixed support, it is individually fixed in the both sides of Room door in the hoistway or the both sides of the outer Room of hoistway door;
The pair of sliding fulcrum, it is individually fixed in this on the fixed support;
A pair of draw gear, it is individually fixed in this on the fixed support, and the two ends of this safety strap are connected draw gear with this respectively, and this drives this safety strap to draw gear and along this slip fulcrum is moved up and down;
The a pair of spring that tightens up, it is vertically installed in respectively this to support bracket fastened bottom or top, and this end to draw gear is connected upper end or the lower end of tightening up spring with this respectively;
A pair of limit switch, it is arranged at respectively this to support bracket fastened end, is used for limiting this to moving on the draw gear or lower pan position.
Each this draw gear comprises:
Sliding support, what this sliding support slided is located on this slip fulcrum, and this safety strap is connected with this sliding support, and the lower end of this sliding support or upper end are tightened up spring with this and be connected;
And electric machine, this electric machine provides power for the movement of this sliding support.
2. elevator protection device as claimed in claim 1 is characterized in that, this draw gear is rotating machine or linear electric motors.
3. elevator protection device as claimed in claim 1; it is characterized in that; this elevator protection device also comprises Electromalgnetic locking mechanism; this Electromalgnetic locking mechanism is installed on each fixed support; include: dead bolt; dead bolt hole; gangbar; the electromagnetic lock spring; the electromagnetism magnetic core that contains coil; this gangbar is located on each fixed support; this dead bolt and this gangbar cross connection; and this dead bolt hole is located on each sliding support; one end of this electromagnetic lock spring laterally is fixed on each fixed support; the other end is connected with this dead bolt, the movement of this dead bolt and this each sliding support of dead bolt hole engagement limits.
4. elevator protection device as claimed in claim 3 is characterized in that, this control setup includes:
Signal input unit, this signal input unit are used for input this layer Room door switch or go ahead of the rest layer or call out the stops lamp or flat bed signal control signal;
Choosing layer processing controls plate; it can enter control signal or leave control signal according to this signal input unit output; by controlling this Electromalgnetic locking mechanism action; this safety strap of control leaves the position of protection height under the effect of tightening up spring; or by control electric machine traction sliding support; control this safety strap and enter the protection height and position; when arriving the protection height; this gangbar is touched this limit switch; electric machine is stopped automatically, and this sliding support is being protected height and position by the dead bolt seatbelt lock.
5. elevator protection device as claimed in claim 4; it is characterized in that; have additional the car inductor on this choosing layer processing controls plate; be used for this car of induction and whether reach safe floor; this choosing layer processing controls plate cooperates with this signal input unit, determines whether output shielding control signal or enters control signal.
6. elevator protection device as claimed in claim 4; it is characterized in that; set up address dial-up sequence information on this choosing layer processing controls plate; this choosing layer processing controls plate is connected with the elevator master control unit; stop the pulse count of safe floor according to distance; allow signal in advance elevator protection device dock floor address sequence information and control, processed by the elevator protection device gating again, determine whether export the shielding control signal or enter control signal.
7. elevator protection device as claimed in claim 1 is characterized in that, this linkage drive units is provided with hand push button, is used for forcing this safety strap of control to leave protective position or enter the protection height and position.
8. elevator protection device as claimed in claim 1 is characterized in that, this safety strap is made by flexible material.
9. elevator protection device as claimed in claim 1 is characterized in that, local or all be provided with magnetic on this safety strap, hoistway door is provided with iron plate, and this magnetic and this iron plate attract each other.
10. elevator protection device as claimed in claim 1 is characterized in that, has the caution color on this safety strap, and/or is printed with the caution statement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010227117 CN101920878B (en) | 2010-07-14 | 2010-07-14 | Elevator protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010227117 CN101920878B (en) | 2010-07-14 | 2010-07-14 | Elevator protection device |
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| Publication Number | Publication Date |
|---|---|
| CN101920878A CN101920878A (en) | 2010-12-22 |
| CN101920878B true CN101920878B (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010227117 Active CN101920878B (en) | 2010-07-14 | 2010-07-14 | Elevator protection device |
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| CN (1) | CN101920878B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2447312Y (en) * | 2000-10-17 | 2001-09-12 | 虞戟 | Floor-levelling block for elevator car |
| CN2868956Y (en) * | 2005-05-13 | 2007-02-14 | 郭培正 | Elevator floor-door safety protection device |
| CN200940059Y (en) * | 2005-12-27 | 2007-08-29 | 刘文瑞 | Alarming system for preventing person walking into elevator shaft and so falling down |
| CN101575061A (en) * | 2009-02-25 | 2009-11-11 | 日立电梯（中国）有限公司 | Elevator fall protective device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2867828B2 (en) * | 1993-02-18 | 1999-03-10 | 三菱電機株式会社 | Safety device for elevator maintenance work |
| JPH08113440A (en) * | 1994-10-18 | 1996-05-07 | Mitsubishi Denki Bill Techno Service Kk | Safety device for work on elevator car |
| JP2003095554A (en) * | 2001-09-26 | 2003-04-03 | Toshiba Elevator Co Ltd | Safety device on elevator car |
| JP2005096891A (en) * | 2003-09-22 | 2005-04-14 | Toshiba Elevator Co Ltd | Safety device on elevator car |
-
2010
- 2010-07-14 CN CN 201010227117 patent/CN101920878B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2447312Y (en) * | 2000-10-17 | 2001-09-12 | 虞戟 | Floor-levelling block for elevator car |
| CN2868956Y (en) * | 2005-05-13 | 2007-02-14 | 郭培正 | Elevator floor-door safety protection device |
| CN200940059Y (en) * | 2005-12-27 | 2007-08-29 | 刘文瑞 | Alarming system for preventing person walking into elevator shaft and so falling down |
| CN101575061A (en) * | 2009-02-25 | 2009-11-11 | 日立电梯（中国）有限公司 | Elevator fall protective device |
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| CN101920878A (en) | 2010-12-22 |
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