CN1227150C - Shaft safety system for elevator - Google Patents
Shaft safety system for elevator Download PDFInfo
- Publication number
- CN1227150C CN1227150C CN00819120.4A CN00819120A CN1227150C CN 1227150 C CN1227150 C CN 1227150C CN 00819120 A CN00819120 A CN 00819120A CN 1227150 C CN1227150 C CN 1227150C
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- China
- Prior art keywords
- safety
- elevator
- switch
- safety switch
- shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0043—Devices enhancing safety during maintenance
- B66B5/005—Safety of maintenance personnel
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Door Apparatuses (AREA)
- Elevator Control (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention relates to an elevator. The elevator comprising a car inside an elevator shaft, a landing door to open and close an entrance of the elevator shaft which entrance provides access to a work environment in the elevator shaft. The elevator further comprises a shaft safety system for safuguarding a maintenance worker in the work environment from the car. The shaft safety system comprises a device which is arranged to be automatically activated when said landing door is opened or released to be opened and deactivated by manually reset and a control system for controlling the movement of the car. The device is connected to the control system and the control system is brought in a safety mode wherein the control system prevents the car to move beyond a predetermined position in the shaft in the direction of the work environment if said device is activated.
Description
Technical field
The present invention relates to a kind of elevator, this elevator comprises: the cage in lift pin; Be used to open and close the landing door of lift pin inlet, can enter working environment in the lift pin by described inlet; And be used for from the shaft safety system of cage protection the surfaceman of working environment.The invention still further relates to the shaft safety system of a kind of control system, safety shaft device and elevator.
Background technology
In order to make elevator safety and to work reliably, need carry out periodical maintenance and inspection to it.For the elevator of routine, driving and control unit are set in the independent room.This room have specific size and can not with the cage or the counterweight direct contact that move, to guarantee the working environment of a safety.On the other hand, for the elevator that does not have machine room, driver element (sometimes and control unit) is set in the vertical shaft, in most cases in well or the top of vertical shaft.And, must in vertical shaft, safeguard and check these parts.In order to guarantee a safe working environment, must take the measure that adds.
From U.S. Pat 5,727, can learn a kind of like this elevator in 657.
For the elevator of most equipment in well of routine, well equipment is restricted and only needs to carry out ccasual attended operation or inspection.Therefore, desired as relevant regulations (particularly EN81), adopt the standard shaft safety system so that a kind of relatively working environment of safety to be provided.This standard shaft safety system of abideing by EN81 comprises that the shock absorber that is used for cage and counterweight are to limit them at the minimum altitude of hoistway and the well brake equipment that can prevent the cage operation when starting.
Shock absorber, rubber buffer, spring or hydraulic damping device have been protected a specific Waiting space.The well brake equipment that starts can protect the people in well can not clash into because of the cage that unexpected cage operation is moved.The program of standard is to start the well brake equipment and close the well brake equipment again before entering well after leaving.The well brake equipment is to operate in manually-operated mode, forgets even ignores the well brake equipment easily like this.In order the surfaceman can be arrived be installed in the parts below the cage after entering well, can require the cage operation that cage is descended can these parts being tested or attended operation from well.When the surfaceman in well or in something top climbing when arriving higher parts, this can make the well brake equipment close under unwarranted situation, has formed a kind of unsafe working environment like this.
Be arranged on elevator in the well for drive system and/or relevant device, this well is counted as machine room.Relevant regulations (EN81) stipulated machine room minimum size so that the work of carrying out at equipment easily and safety (EN81-6.3.2).Particularly, should provide at least 2 meters clear height at the place, work area.On the other hand, selling the well degree of depth that requires minimum is at war with reduction laid down cost and with other supplier.These two kinds of requirements are competing.
U.S. Pat 5,727,657 have disclosed the equipment that a kind of safe working environment automatically is provided that moves by the restriction cage.As long as cage leaves shielded zone and this cage is braked, one or more brake equipment pivots in the mobile route of cage.In the cage moving process, self withdraws brake equipment once more.Switch is controlled these motions.The key that opens the door starts one and is positioned at unblanking and release of shaft door top.This will start a memory circuit so that vital circuit keeps disconnecting and prevents that the cage operation from resetting memory circuit until a key switch.
A shortcoming of this system is, when attended operation, still is difficult to arrive the parts that are positioned at the cage below.In this case, cage can not descend owing to the brake equipment of machinery.Force service personnel to use a kind of independent ladder like this or the parts climbing on the top of other object is installed in cage with arrival below of having to.This will bring new danger, that is, fall or the components hit that the moves service personnel on the ladder in well still after carrying out attended operation.Dynamic Maintenance in addition, that is, the parts of from well needs being safeguarded under the situation that requires cage to move carry out attended operation, can not carry out in this case.In addition, this safety system comprises a plurality of moving-members that may break down owing to dust or dirt.In addition, because the quantity of parts also can increase the cost of this system.
U.S. Pat 5,806,633 have disclosed a kind of design of similarly guaranteeing a kind of safe working environment under the people is present in situation in the well.Actuator operated is fixed on two pivotable posts in the well so that described post can be in extended position or advanced position.When being in extended position, two braking elements that are fixed on when cage arrives a certain minimum altitude on the cage will clash into described post.Can guarantee desired Waiting space in well like this as EN81.Safe and free height to provide one to be suitable for standing upright on the people in the well on guide rail or other structure is provided two manually-operated devices.The switch that is installed in the floor below of well bottom can discover whether the someone is present in the well.When the people stepped on this base plate, an electronics alarm bell began to send the tinkle of bells immediately.In order to stop this by ear-piercing sound, people must install other shutdown feature.
Be activated and after safety post is in the extended position place the still motion that can allow cage only can make progress at this actuator.This control setup can prevent that cage from moving down.
For this system, in service personnel was present in the well with the process of carrying out some Dynamic Maintenance operations, this cage can move up.Can not carry out the maintenance program that needs cage to move down.In addition for this system,, therefore still exist and when attended operation, still be difficult to arrive the shortcoming that is positioned at the parts below the cage because mechanical brake device stops cage to descend.Equally, force service personnel to use a kind of independent ladder or the parts climbing on the top of other object is installed in cage with arrival below of having to, this will bring new danger, that is, fall or the components hit that the moves service personnel on the ladder in well still after carrying out attended operation.
In addition, the free height that can guarantee only for standing in the height of the people on the well base plate.In entering the process of well, for example stand on the ladder, then can not guarantee free height.
Summary of the invention
One object of the present invention is, a kind of solution of the above problems is provided.
Elevator involved in the present invention is characterised in that, described shaft safety system comprises: a safety shaft device, described safety shaft device is to be provided with like this, promptly, when described landing door is opened or releasedly starts described safety shaft device automatically when preparing to open, and need reset by artificial mode and can close described safety shaft device; And one be used to control the control system that described cage moves, wherein said safety shaft device links to each other with described control system, if and described safety shaft device is activated, then control system is in a kind of safety mode, and wherein control system can stop cage to be moved beyond a desired location in the vertical shaft on the direction of working environment.
According to the present invention, provide a kind of shaft safety system, when in that (for example, the top of well or vertical shaft) landing door is opened or is released when preparing to open, and this shaft safety system can be started at once automatically near protected vertical shaft zone.Just can in vertical shaft, provide a kind of safe working environment as long as start this shaft safety system, comprising a protected free operating altitude.According to a specific embodiment, cage can not be from removing other position operation of relevant vertical shaft position (for example, the top of well or vertical shaft).Particularly, under the situation of well, can only utilize a certain operation intentionally to control free operating altitude to arrive the bottom of cage from the well guidance panel.Preferably control system only can make cage move by inspection speed.
According to a preferred embodiment, even under the situation of power breakdown, described shaft safety system also can be remembered the required condition when power recovery.People can check easily whether described shaft safety system is in starting state.
The related shaft safety system of one particular embodiment of the present invention comprises following parts.
The cage that can in lift pin, move up and down.At the landing door that to close protected lift pin inlet partly at layer place that lands.Can discover the safety shaft device that the someone enters vertical shaft.In this case, start a control system preventing cage operation, except near the vertical shaft position of being equipped with the landing door of safety device, it can make an interim limit switch job and light operating illumination in vertical shaft.This interim limit switch prevent cage move to the below of a certain height or top in case guarantee one as machine room the free operating altitude that can provide.Under the situation of well, by dealing with unforeseen circumstances from specific operation consciously of the inner execution of well.After service personnel leaves vertical shaft, can manually set this safety device and closing control system once more from the door that lands.
Description of drawings
Now with reference to the accompanying drawings embodiments of the invention are described, in the accompanying drawings:
Fig. 1 shows a section drawing of the elevator of machine in well, comprising shaft safety system;
Fig. 2 shows an embodiment who is used at the safety shaft device of the protected machine location of vertical shaft, and wherein the safety switch top and the triangle key lock that are arranged in the top case is positioned at described landing door face board;
Fig. 3 shows the function of mechanical lock mechanism of a kind of astable switch of described safety shaft device; (A) be the acquiescence off position, (B) be extreme enable position and (C) be the locking enable position of unclamping the switch behind the triangle key lock;
Fig. 4 shows another embodiment of safety shaft device, and wherein the safety switch top and the triangle key lock that are arranged in the top case is positioned at described landing door face board;
Fig. 5 shows another embodiment of safety shaft device, and wherein the safety switch top and the triangle key lock that are arranged in the top case is positioned at described landing door face board;
Fig. 6 shows the function of another kind of mechanical lock mechanism of a kind of astable switch of safety shaft device;
Fig. 7 is the lateral plan of the embodiment of safety shaft device as shown in Figure 6;
Fig. 8 shows an embodiment of safety shaft device, and wherein safety switch is arranged in the face that lands behind the door and the triangle key lock is positioned at described landing door face board;
Fig. 9 shows another embodiment of safety shaft device, and wherein safety switch is arranged in the face that lands behind the door and the triangle key lock is positioned at described landing door face board;
Figure 10 shows another embodiment of safety shaft device, wherein safety switch is positioned at the face behind the door that lands, the triangle key lock be arranged in described landing door face board and comprise one additional can be from the mechanism that the landing reveal resets in the face of safety switch;
Figure 11 shows another embodiment of safety shaft device, and wherein safety switch is arranged on the top of top case and the triangle key lock is positioned at described top lateral column;
Figure 12 at length shows the mechanism that engages with the triangle key lock of embodiment as shown in Figure 11; (A) be front elevation; (B) be that described mechanism is in the top view of a default location and (C) is the top view that described mechanism is in an extreme enable position;
Figure 13 shows an embodiment of safety shaft device, and wherein safety switch is arranged on the top of top case and the triangle key lock is positioned at described top lateral column;
Figure 14 and Figure 15 show an embodiment of safety shaft device, and wherein safety switch is positioned on the top of top case but does not engage with the triangle key lock, and the difference of these two figure only is the mechanism that resets of applied safety switch;
Figure 16 shows the lockout mechanism of the astable safety switch of safety shaft device, wherein can reset it from the mode of other positions with electronics;
Figure 17 shows the scheme drawing of the embodiment of shaft safety system; And
The method that provides about the vital circuit of safety shaft device is provided Figure 18.
The specific embodiment
Fig. 1 shows a kind of lateral plan that does not have the elevator of machine room.Cage 3 and counterweight 6 are suspended in midair by one or two tethered system, and angle pulley 2 is installed in the top of vertical shaft, and the angle pulley that is installed in the cage below is called as outstanding device 4 down.The bottom of vertical shaft 1 is a well 7, and shock absorber 8 is arranged in the well 7.In this embodiment, machine 9 is set in the well, but it also can be installed in other position, for example is installed in the top of vertical shaft.Machine location in vertical shaft is well in this case, is illuminated by operating illumination 10.The door 11 that lands is closed the inlet of vertical shaft.Elevator is provided with a shaft safety system.This shaft safety system comprises a safety shaft device 12, and safety shaft device 12 parts are positioned near the landing of machine location side and/or top behind the door.This shaft safety system also comprises an interim operation limit switch 5 that is arranged in vertical shaft.Under the situation of a machine in well, this limit switch is positioned at the bottom of vertical shaft.For the machine at the top of vertical shaft, an interim limit switch can be arranged in the top of vertical shaft.This limit switch is the part of shaft safety system.
Now the embodiment according to the elevator of the no machine room of machine in well carries out following description to function of the present invention.In order to enter well, must open the door that lands in artificial mode.When opening nethermost landing door in artificial mode, start the safety shaft device.This will start a control system of shaft safety system, light the operating illumination in well, make the work of interim operation limit switch and prevent that cage is from other any position operation except that well.Except illuminating the machine works district, operating illumination is also as a kind of signal of warning of representing that shaft safety system starts or closes.When shaft safety system starts, operate limit switch temporarily and prevent that cage from running to below a certain height of the minimum at least required safe altitude that provides as machine room.Only utilize and on the vertical shaft guidance panel, carry out specific operation and cage is descended and through interim operation limit switch, for example so that the bottom of cage is safeguarded.After leaving well, must be by extracting a ratchet or button being pressed by from the layer that lands safety shaft device and shaft safety system being reset in artificial mode in a key locking-type Room panel.
Effect of the present invention is, when a people opened nethermost landing door in artificial mode, shaft safety system started immediately.This people can enter into well safely and not exist during well because the danger that cage unexpectedly falls from other position operations at it.And can carry out Dynamic Maintenance safely from well, even without noticing that cage moves to maintained part or carries out the danger that faulty operation does not exist cage unexpectedly to fall yet.But, still can fall cage and safeguard with bottom to cage.
Fig. 2 and Fig. 3 show an embodiment of safety shaft device, comprising the triangle key lock 19 in landing door face board 13.This triangle key lock also is the part of the door-locking system of routine.When operating the triangle key lock in artificial mode, the bar 18 that links to each other with the triangle key lock promotes a mechanism.This is rotary door breech lock 14a, and latch 14a and gantry crane mount to be put 14 hinges and be connected, and latch no longer is locked in fixing breech lock 14b back, and door face board, gantry crane mount to be put and each mounts with gantry crane and puts the parts that link to each other and be movable to the next door.In normal cage operational process, utilize the blade 14c that is fixed on the cage door that latch is rotated, latch is rotated.In addition, for this routine door-locking system, second bar 20 is fixed on the triangle key lock and in a side relative with bar 18.Carriage 17 is installed in the back of triangle key lock.The stop part 16 that comprises a unit bolt nut spare is fixed on this carriage 17.Second bar 20 is fixed on the triangle key lock and in a side relative with bar 18.The free end of this bar 20 is connected with being with 21 hinges.This band links to each other with a specific curved bel 22 by bolt, curved bel 22 be with 21 to be equidirectional.Slit is arranged in these bands one of them with the total length of accommodation zone.The other end with 22 is connected with plate 24 hinges.This plate also is connected with carriage 23 hinges, and carriage 23 is installed in gantry crane and mounts and put 14.The sweep of this plate 24 can contact with bar 25.This bar is fixed on the safety switch bar 28.This safety switch is installed and is arranged in switch framework 29, and switch framework 29 is fixed on the top of top case 15.Having the switch securing rod 26 of reserving breach is connected with the switch framework hinge and by spring 27 switch securing rod 26 is compressed against on the safety switch bar.
The function of this safety shaft device is as follows.In order to open door, utilize the triangle key that the triangle key lock is rotated in artificial mode.The bar that is fixed on the triangle key lock also rotates.When the downward drawstring 22 of bar 20, bar 18 is with the actuating doors breech lock.The rotation of triangle key lock and in an opposite direction the bar of captive joint be subjected to the restriction of stop part 16.When bar 22 is pulled down, bar 24 will rotate counterclockwise and lifting arm 25.This will start safety switch and simultaneously securing rod 26 at a higher step that is rotated under the effect of spring force below the safety switch bar.After bar 24 returned default location, the safety switch bar remained on the enable position place under the effect of securing rod.In order to reset safety switch once more, must or overcome spring force in artificial mode securing rod is rotated in the mode of electricity.
The effect of this safety shaft device is, starts safety switch when the triangle key lock rotates at once.This means, even before really opening the door that lands, shaft safety system is activated.Safety switch is fixed on the stationary part, can not bring difficulty for wiring like this.A kind of bi-stable safety door latch can be provided, and this is owing to using securing rod to cause.Because therefore the negligible amounts of parts and be adjustable by the part length that links to each other with parts on the door face board at the parts on the case of top is installed simply.
Fig. 4 show be fixed on door face board 30 in the embodiment of the safety shaft device that combines of triangle key lock 36.The stop part 33 that comprises a unit bolt nut spare is fixed on this carriage 34, and carriage 34 is fixed on the door face board.Two plates 35 and 37 are fixed on the triangle key lock.Plate 37 is connected with being with 38 hinges.Utilize bolt that plate 38 is linked to each other with 39.Be provided for these bolted slits to regulate the total length of the plate that makes up in a plate therein.Plate 39 is connected with dull and stereotyped 41 hinges, and dull and stereotyped 41 are connected with carriage 40 hinges.This carriage is fixed on gantry crane and mounts and put on 31.Utilize bar 42 to make safety switch bar 45 obtain extending.The free end of this bar above plate 41 has a sweep.Securing rod 43 be one with zone that the safety switch bar contacts on be reserved with the plate of specific breach.Spring 44 is kept in touch between securing rod and safety switch bar.Safety switch is installed in the switch framework 46, and switch framework 46 is fixed on the top of top case 32.
The function of this safety shaft device is similar to the function of as shown in Figure 2 safety shaft device.
The effect of this embodiment is similar to the effect of embodiment shown in Fig. 2, and difference is, be installed in parts in the case of top have another kind of shape and with respect to gantry crane mount put also different, the center of the more close door that lands in the position of safety switch.This for other parts be installed in gantry crane mount put or the top case on situation may be an advantage.
Fig. 5 shows the safety shaft device that triangle key lock 50 a kind of and in door face board 47 combines.A stop part 54 is captiveed joint with carriage 53, and carriage 53 is fixed on the door face board.Bar 51 is fixed on the triangle key lock.One side has the free end that contacts with bar 52, and the other end is connected with bar 55 hinges.The length of this bar is adjustable.Utilize two plates to come it is provided with, these two plates utilize bolt to link to each other and are provided with slit in a plate therein.Bar 55 is connected with plate 56 hinges, and plate 56 and gantry crane mount to be put 49 hinges and be connected.Torsion spring 57 is set so that in normal door operation process, make described plate be in default location around this point of connection.The part of plate 56 can contact with a slider bar 58 when being rotating with convenient its of bending.This is guided by plate 59, and plate 59 is installed in gantry crane and mounts and put.In course of normal operation, spring 60 makes slider bar be in default location.The framing member of two plates 61 is installed on the top of slider bar, utilizes slit-bolt connection piece that two plates 61 are fixed together.The top of uppermost plate makes the top of uppermost plate contact with bar 61 when being bent and being raised with convenient slider bar, and bar 61 is installed on the switch lever 62.Bi-stable switch 63 itself is installed on the switch framework 64.Switch framework is fixed on the top of top case 48.
The function of the embodiment of the function of the embodiment of this safety shaft device and the safety shaft device as shown in Fig. 2 and Fig. 4 is similar.
The effect of embodiment is similar shown in the effect of this embodiment and Fig. 2 and Fig. 4, and difference is that for this embodiment, gantry crane mounts some parts that another zone of putting can be used for installing this device.This embodiment compares with foregoing embodiment, needs more parts and need more adjustment in installation process.
Fig. 6 shows an embodiment of the mechanical lock mechanism that is used for a kind of non-bistable switch of safety shaft device.Plate 65 with specific breach is connected 66 with the switch framework hinge.Torsion spring 67 is set so that plate 65 is kept in touch with switch lever.One resets bar 68 and is connected with plate 65 hinges.
The function of this lockout mechanism is that non-bistable switch is changed into bistable switch.Plate 65 is hooked in around the switch lever when the operation that utilizes the safety shaft device promotes switch lever.In this case, switch lever is maintained at the enable position place, even when this well safety device is no longer worked.Must pull-up reset bar 68 so that switch lever is unclamped once more.
The effect of this lockout mechanism is to utilize this lockout mechanism a kind of non-bistable switch can be used for guaranteeing be bi-stable safety shaft device.
Fig. 8 shows an embodiment of safety shaft device, comprising the triangle key lock 70 in door face board 69.A kind of small and exquisite bistable state safety switch 76 is installed in the back of door face board.Bar 71 is fixed on the triangle key lock slider bar 72 and the safety switch pin 74 with while actuating doors bolt lock mechanism.The specific back, curved side that is routed in door face board of safety switch 75 is directed.This safety switch is provided with one and resets button 76 so that this switch is reset.
The function of this embodiment of safety shaft device is as follows.When the triangle key lock rotates, the bar of the bar lever gear door bolt lock mechanism of joint and push the operative pin of safety switch.After leaving well, must this safety shaft device be reset by the button of extracting on the safety switch of door face board back that resets.
The effect of this embodiment is, makes to start and to reset the structure of safety shaft device very simple.
Fig. 9 shows a kind of different slightly embodiment of safety shaft device, comprising the triangle key lock 78 that is fixed in the door face board 77.A kind of bar 79 of given shape is fixed on the triangle key lock.This bar has the free end that contacts with the particular switch control lever 82 of the slider bar of latch mechanism 80 and a kind of small and exquisite bistable state safety switch 81.This switch is installed on the carriage 83.Utilize bolt connection piece that this carriage is fixed on the curved side of door face board, on carriage and door face board, be provided for the slit of bolt connection piece.The specific back, curved side that is routed in door face board of this switch is directed.This switch is provided with one and resets button 85.
The function of this embodiment is as follows.The rotation of triangle key lock is rotated engaging lever, and engaging lever is the slider bar and the switching manipulation bar of lever gear door bolt lock mechanism simultaneously.The shape of this bar is such, that is, the switching manipulation bar is raised in specific scope.After leaving well, must this safety shaft device be reset by the button of extracting on the safety switch of door face board back that resets.
The effect of embodiment is similar shown in the effect of this embodiment and Fig. 8, and difference is, resets the side of the more close door face board in position of button, therefore easier touching.Owing to be fixed on the bar of the given shape on the triangle key lock, therefore do not exist the angle that turns over because of the triangle key lock to make the impaired danger of switch too greatly.
Figure 10 also shows a kind of different slightly embodiment of safety shaft device, and this safety shaft device is combined with the triangle key lock 87 that is fixed in the door face board 86.The bar 88 that is fixed on the triangle key lock extends to a side.Free end can freely contact with small and exquisite bistable state safety switch 90.This switch is installed on the carriage 91, and carriage 91 is fixed on the last snyed plate of door face board.Switch is provided with and resets button 92.Bar 93 resets the button joint and is connected 94 in the somewhere, center with carriage 95 hinges of a given shape with this.This carriage is fixed on the crooked side plate of door face board and guides a slider bar 97.In course of normal operation, spring 96 makes slider bar remain on the default location place.Slider bar can freely contact with bar 93 in the end of door face board inboard, bar 93 with reset button and link to each other.In the front of the other end of slider bar, an aperture 98 is arranged in the sidepiece of door face board.
The function of this embodiment is as follows.The rotation of triangle key lock is rotated engaging lever.The safety switch that this rotates the slider bar of lever gear door bolt lock mechanism and starts the safety shaft device.After leaving well, must reset shaft safety system by a lip pencil thing being pushed in the aperture in the sidepiece of door face board.This will overcome spring force makes the slider bar translation and makes and reset the bar that button engages and rotate around pivoting point.This resets button and will be drawn.After the lip pencil thing leaves the hole, spring will make slider bar get back to its default location.
The effect of embodiment is similar shown in the effect of this embodiment and Fig. 8, and difference is, resets easily from the sidepiece of door face board.
Figure 11 and Figure 12 show an embodiment of safety shaft device, comprising the triangle key lock 105 that is arranged in top lateral column 100.The door header bar of top lateral column in hoistway wall.The framework of being made by a kind of specific curvature plate 106 is installed in the below of triangle key lock.Snyed plate 108 is fixed on the top of triangle key lock.Spring 104 is installed between this plate and this framework.Screw 107 is fixed on the framework at the opposite side of triangle key lock.In the place, end of plate 108, the interior lines that cable 110 is installed near spring installation.The end of the outside line of close triangle key lock is installed on the carriage 103, and carriage 103 is installed on the lateral column of top.The other end of cable 110 is installed on the free end of bar 112, and bar 112 is positioned on the top of top case.Cable is between hoistway wall and top case.A free end of a specific snyed plate 101 is arranged in the rotation path of plate 108, and the other end links to each other with latch.
Bar 112 is specific snyed plates, and it has a horizontal curvature part, and cable is installed there, and the other end has an oblique bending part.Keeping a distance to be connected with carriage 111 hinges with two ends, carriage 111 is fixed on the top case 102.Bar 112 has the free end that contacts with switching manipulation bar 113.Small and exquisite bistable state button full switch 114 is installed on the framework 115, and framework 115 also is installed on the top of top case.One resets bar 118 and is installed in resetting on the button 116 of switch.Spring 117 is arranged on to reset between bar and the top case to avoid resetting button and is pulled resetting under the mass action of bar.
The function of this embodiment is as follows.The rotation of triangle key lock also will make the plate of joint rotate.This not only can make plate 101 rotate opening latch, and certain distance is pulled out from outside line in interior lines.Bar 112 will rotate and lifting switching manipulation bar around pivoting point, start this switch.After unclamping the triangle key lock, spring makes fish plate turn back to default location.This stop part prevents that plate from rotating too far.This will unclamp the line and the bar 112 that are drawn will rotate back into initial position.But bistable switch will keep starting state.After leaving well, must reset the pole pair switch and reset by drawing.This will extract the button that resets of switch.
The effect of this embodiment is to utilize the triangle key lock operation that is positioned on the lateral column of top to be used for the shaft safety system of elevator.The position of the safety switch on the case of top is variable within the specific limits, and this is owing to utilize cable to link together at the parts on parts on the lateral column of top and the top case.Because cable is between top case and hoistway wall, conflict can not appear in the parts that therefore are positioned at the top case.
Figure 13 shows an embodiment of the safety shaft device slightly different with the embodiment shown in Figure 12, and wherein triangle key lock 135 is arranged in top lateral column 120.The framework of being made by snyed plate 134 is installed in the below of triangle key lock.A long spiro nail 133 is fixed on this framework in a side of triangle key lock.Spring 136 is fixed on this framework in a side relative with the triangle key lock.The other end of spring is fixed on the snyed plate 132, and snyed plate 132 is fixed on the top of triangle key lock.Has pivot joint part for one hook-shaped dull and stereotyped 131 with the top lateral column in the bight.A free end is positioned at the rotation path of snyed plate 132.The interior lines of cable 121 are fixed on another free end.Cable comprises interior and exterior lines and between top case 129 and hoistway wall.Cable is guided by carriage 122, and carriage 122 is fixed on the case of top.Outside line near the triangle key lock is fixed on the case of top.The other end of cable is fixed on the bar 124.This bar is keeping the position of certain distance to be connected with carriage 128 hinges with free end, and carriage 128 is fixed on the top of top case.Spring 123 is installed between this bar and the top case.This bar has the free end that contacts with the switching manipulation bar 126 of small and exquisite bistable state safety switch 125 in the part at the opposite side place that articulates part.This switch is installed on the framework that is positioned on the box top, top.A relative end hinge of bar 127 and switching manipulation bar connects, and wherein the cable relative end that is fixed on the switching manipulation bar is sentenced the actuating doors breech lock.Utilize with the bar that resets that button engages that resets of safety switch and reset once more.
The function class of embodiment shown in the function of this embodiment and Figure 11 and Figure 12 seemingly, difference is as follows.Cable be straight be not crooked.Interior lines are not directly installed on the plate on the top of being fixed in the triangle key lock, but utilize another parts.The rotation of being fixed in the plate on the top of triangle key lock will contact with this vertically arranged plate.Therefore, this plate also will rotate, and pull out the interior lines of cable.The bar and the spring between the case of top that are set in place on the box top, top can be guaranteed to get back to its default location after described bar is unclamping the triangle key lock.The safety shaft device or even the latch handling device in parts all be not positioned at the top case.
The effect of embodiment is similar shown in the effect of this embodiment and Figure 11 and Figure 12.
Figure 14 shows an embodiment of safety shaft device, and this safety shaft device is based on opens the door and cage is present in or not at the line operate that is incorporated into of the same layer that lands of landing.Except the latch system of routine had set of rollers 137, second group of roller 138 and the gantry crane that links to each other with connecting panel 139 mounts to be put 140 and articulates.Stiffness spring is set so that this plate remains on default location place upwards.The latch of the common blade 137a operating routine of utilization on the cage door, and another group blade 138b on the cage door will operate another group roller.The safety switch 147 that has the switching manipulation bar 141 of extension is fixed on the switch framework 146, and switch framework 146 is installed on the top of top case 150.Specific cutting plate 144 is connected with this frame hinge at point 145 places and utilizes spring 143 to engage with frame side.Line 148 is fixed on the free end of this plate, and the free end of this plate is positioned at the outside of switch framework.This line is guided by wisp 151 on angle pulley 142 and 149.Draw ring 152 is installed in can be from layer end that touches that land when the door that lands is opened a zonule in this line.
The function of this embodiment of safety shaft device is as follows.On cage framework or door, two groups of blades are installed in the mode that is parallel to each other.When door and related landing layer were in same level height, these blades overcome spring force rotated two groups of rollers.This will open latch and the plate that links to each other with second group of roller is reduced.When door was opened, this plate was below the switching manipulation bar that extends and with discontiguous mode translation.Like this, switch will not be activated.When opening door and cage in artificial mode, produce different situations at another layer.In this case, will only open latch, but the second group of roller that links to each other with plate is not operated and still remains on default location upwards.When door was opened, this plate contacted with the switching manipulation bar of extension.This switch is activated.Utilize spring that the plate of specific otch and switching manipulation bar are kept in touch, like this, when door is closed once more, lockout mechanism will guarantee that switch keeps starting state.After leaving well, resetting line by pulling can reset shaft safety system.This will overcome spring force rotates and the trip switch control lever plate of continuous specific otch.
The effect of this embodiment is that the triangle key lock no longer is the part of safety shaft device.Like this, no longer utilize additional application force to force the triangle key lock to operate this safety shaft device.Must only on a zonule, open the door that lands so that the safety shaft device is reset.Certainly, can provide a kind of electronics to reset device and shaft safety system be reset (seeing Figure 16) from other positions.
Figure 15 shows and the similar embodiment shown in Figure 14, and difference is, does not adopt the described lockout mechanism that is used for non-bistable state safety switch, and adopts lockout mechanism as shown in Figure 6.
Figure 16 shows the lockout mechanism that the non-bistable state safety switch that provides as Fig. 2, Fig. 3 and Fig. 4 is provided, and wherein has the extendible portion of an electronic operation plunger.
The function of this embodiment is to make the plunger translation from other positions on the layer that lands with artificial mode operating switch or button.This plunger overcomes the downward urge lock bar of spring force and the switching manipulation bar is unclamped.
Effect is, this need not to be opened and can have more manoevreability to the position that shaft safety system reset and reset button or switch.
Figure 17 is the illustrative examples of shaft safety system.By start the safety switch 168 of safety shaft device 165 with the operation 167 of manually opening door 166.Reset button or 170 pairs of safety switchs of ratchet reset 169 by starting from the layer that lands.The state of safety switch is transmitted 171 and gives control system 173.Control system is the part of elevator overhead control 172.When starting safety switch, control system is cut off 176 snubber chains, connects 174 operating illuminations 175, and signal 177 is offered elevator control and starts 180 described interim limit switches 184.The cut-out of snubber chain also offers signal 178 elevator control to shut down.Controlling apparatus for lifts door moves and cage operator perforniance 190,191 and 192 by vertical shaft handling device 187, cage top handling device 188 and Room handling device 189 controls 181 elevator cars 182.When controlling apparatus for lifts door receives the signal that shaft safety system is activated, disconnect cage operator perforniances 190 and 191 by cage top handling device 188 and Room handling device 189 at once.Only make cage operate 192 maintenance work, but only utilize the speed inspection by the vertical shaft handling device.
If elevator car reaches and the identical height of the required minimum constructive height of machine room, it will operate 183 interim limit switches so.This interim limit switch offers control system with a signal 180 at once when being activated.Control system transmits 177 with this signal and gives controlling apparatus for lifts door, and controlling apparatus for lifts door will make cage out of service 181.But under the situation of well, when the cancellation 186 of vertical shaft handling device and interim limit switch all was activated 185, elevator car can descend through interim limit switch.This instruction can flow to controlling apparatus for lifts door by control system.
In a preferred embodiment, if the door that lands is in closed condition, control system only resets safety switch so.
When control system received the signal that the safety shaft device is reset, it is snubber chain fixedly, disconnected operating illumination, and interim limit switch is closed and controlling apparatus for lifts door receives the signal of an enabling.
Claims (22)
1. elevator, this elevator comprises: the cage in lift pin; Be used to open and close the landing door of lift pin inlet, can enter working environment in the lift pin by described inlet; And be used for from the shaft safety system of cage protection the surfaceman of working environment, it is characterized in that, described shaft safety system comprises: a safety shaft device, described safety shaft device is to be provided with like this, promptly, when described landing door is opened or releasedly starts described safety shaft device automatically when preparing to open, and need reset by artificial mode and can close described safety shaft device; And one be used to control the control system that described cage moves, wherein said safety shaft device links to each other with described control system, if and described safety shaft device is activated, then control system is in a kind of safety mode, and wherein control system can stop cage to be moved beyond a desired location in the vertical shaft on the direction of working environment.
2. elevator as claimed in claim 1 is characterized in that, the control system that is in safety mode also prevents from from any position except that the working environment vertical shaft cage to be controlled.
3. elevator as claimed in claim 1 or 2, it is characterized in that, described shaft safety system also is provided with an interim limit switch that is arranged in described lift pin and links to each other with described control system, wherein, described interim limit switch is to be provided with like this, promptly, if cage is moved beyond the desired location, operate described interim limit switch by cage so, and if operate described interim limit switch by cage, the safety control system that is in safety mode so makes cage stop to move.
4. elevator as claimed in claim 1 is characterized in that, described shaft safety system also comprises the vertical shaft illumination, if described device is activated, control system is in safety mode, and so described vertical shaft illumination is activated to illuminate working environment.
5. elevator as claimed in claim 1, it is characterized in that, described safety shaft device comprises a safety switch, described safety switch is to be provided with like this, that is, if described landings door is opened or releasedly opens with preparation, so described safety switch can be operated into the second place from primary importance, described safety switch links to each other with described control system, if described safety switch is in its second place, control system is in safety mode so.
6. elevator as claimed in claim 5 is characterized in that, mechanically makes described safety switch be operated into the second place from primary importance.
7. as claim 5 or 6 described elevators, it is characterized in that, described safety shaft device also comprises a key lock, described key lock is to be provided with like this, that is, can near the door that lands, operate, if utilize one and the corresponding key operated described key lock of described key lock from described vertical shaft outside, so described key lock can make the door that lands unclamp preparing and open, and described key lock can be controlled safety switch and makes it be operated into the second place from primary importance.
8. as claim 5 or 6 described elevators, it is characterized in that, described safety shaft device also comprises a key lock, described key lock is to be provided with like this, promptly, can near the door that lands, operate from described vertical shaft outside, if utilize one and the corresponding key operated described key lock of described key lock, so described key lock can make the door that lands unclamp with preparation and open, if and described landing door is opened, so described key lock can be controlled safety switch makes it be operated into the second place from primary importance.
9. elevator as claimed in claim 7 is characterized in that described key lock is mechanically controlled described safety switch.
10. elevator as claimed in claim 9 is characterized in that, mechanical device is set so that the rotation of described key lock is changed into translation to control described safety switch.
11. elevator as claimed in claim 5 is characterized in that, described safety switch is a kind of bistable switch.
12. elevator as claimed in claim 5 is characterized in that, a kind of mechanical locking is set so that described safety switch becomes bistable switch.
13. elevator as claimed in claim 5 is characterized in that, described safety switch is to be provided with like this,, in artificial mode described safety switch is reset to primary importance from the second place from described working environment that is.
14. elevator as claimed in claim 5 is characterized in that, described safety switch is to be provided with like this,, in artificial mode described safety switch is reset to primary importance from the second place from described vertical shaft outside that is.
15. elevator as claimed in claim 13 is characterized in that, utilization resets described safety switch with the ratchet of described safety switch mechanical linkages, and when spurring or pushing described ratchet described safety switch is reset.
16. elevator as claimed in claim 13, it is characterized in that, utilize an electronic operation plunger and one to reset button described safety switch reset, and if the described button that resets be operated, so described plunger resets described safety switch.
17. elevator as claimed in claim 14, it is characterized in that, utilize an electronic operation plunger and one to reset button described safety switch reset, and if the described button that resets be operated, so described plunger resets described safety switch.
18. elevator as claimed in claim 17 is characterized in that, the described button that resets is positioned at can be from the exterior Room of vertical shaft approaching a key lock Room panel or other key locker back.
19. elevator as claimed in claim 13 is characterized in that, if described landing door is in closed condition, can only realize resetting described safety switch so.
20. elevator as claimed in claim 5 is characterized in that, such device is set, that is, if cage can only make described safety switch be operated into the second place from primary importance not in the back of the described door that lands so.
21. elevator as claimed in claim 5, it is characterized in that, in vertical shaft, be provided with one first and reset button, reset button from one second of the outer setting of described vertical shaft, make second to reset button and be operated after button is operated if reset, can only make described safety switch be reset to primary importance so from the second place first.
22. elevator as claimed in claim 1 is characterized in that, can control a desired location that stops cage to be moved beyond on the direction of working environment in the vertical shaft by the operation that a people who makes in described working environment is scheduled to.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99204429.7 | 1999-12-20 | ||
| EP99204429A EP1110900B2 (en) | 1999-12-20 | 1999-12-20 | Shaft safety system for an elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1434784A CN1434784A (en) | 2003-08-06 |
| CN1227150C true CN1227150C (en) | 2005-11-16 |
Family
ID=8241037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00819120.4A Expired - Lifetime CN1227150C (en) | 1999-12-20 | 2000-12-20 | Shaft safety system for elevator |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1110900B2 (en) |
| CN (1) | CN1227150C (en) |
| AT (1) | ATE299835T1 (en) |
| AU (1) | AU3244201A (en) |
| DE (1) | DE69926244T3 (en) |
| WO (1) | WO2001046058A1 (en) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1404603B1 (en) | 2001-07-09 | 2006-02-15 | Inventio Ag | Lift installation having a virtual protection area at the bottom and/or the top of the lift shaft, and method for controlling the same |
| US6603398B2 (en) | 2001-11-16 | 2003-08-05 | Otis Elevator Company | Hoistway access detection system |
| EP1728754B1 (en) * | 2004-03-23 | 2013-07-03 | Mitsubishi Denki Kabushiki Kaisha | Unlocking device of elevator landing door and method of modifying the device |
| EP1817251B1 (en) * | 2004-12-03 | 2015-03-04 | Otis Elevator Company | Safety device for use in an elevator system |
| ES2363775T3 (en) * | 2004-12-21 | 2011-08-16 | Otis Elevator Company | SECURITY SYSTEM FOR ELEVATORS. |
| DE602006017000D1 (en) | 2006-06-30 | 2010-10-28 | Otis Elevator Co | Elevator with a shallow shaft and / or a small headspace |
| WO2008004021A1 (en) | 2006-06-30 | 2008-01-10 | Otis Elevator Company | Safety device for securing minimum spaces at the top or bottom of an elevator shaft being inspected, and elevator having such safety devices |
| FI20070486A (en) | 2007-01-03 | 2008-07-04 | Kone Corp | Elevator security |
| EP2039642A1 (en) * | 2007-09-19 | 2009-03-25 | Mac Puar, S.A. | Trigger device for the end positions of an elevator and operating procedure thereof |
| DE102007049737A1 (en) * | 2007-10-16 | 2009-04-23 | Exclusive Lift Gmbh | Elevator installation for persons and / or loads with at least one elevator car |
| FR2977881B1 (en) * | 2011-07-13 | 2015-08-21 | Arnoult Patrice | DEVICE FOR LOCKING THE ELEVATOR CABIN IN A SHEATH AT A DETERMINED DISTANCE FROM THE CEILING OR SOIL OF THE SHEATH |
| WO2013092493A1 (en) * | 2011-12-21 | 2013-06-27 | Inventio Ag | Device and method for unlocking an elevator floor door |
| DE102012005541A1 (en) * | 2012-03-21 | 2013-09-26 | Aufzugswerke M. Schmitt & Sohn Gmbh & Co. | Shaft safety device for protecting maintenance worker of lift system, has safety circuit that is stopped, when position sensor detects that lift cabin is not positioned in specific region of shaft door |
| FI125118B (en) | 2013-01-07 | 2015-06-15 | Kone Corp | Elevator |
| CN103991762B (en) * | 2014-05-23 | 2016-01-20 | 苏州莱茵电梯制造有限公司 | The emergency protecting equipment of oblique elevator hoistway |
| EP3056460B1 (en) * | 2015-02-13 | 2023-04-05 | Kone Corporation | Method for resetting an elevator control from inspection mode to normal mode |
| WO2016178050A1 (en) | 2015-05-07 | 2016-11-10 | Otis Elevator Company | Elevator system hoistway access control |
| EP3347298B2 (en) | 2015-09-11 | 2023-01-18 | Inventio Ag | Device and method for monitoring a maintenance mode of a lift assembly |
| KR102166938B1 (en) * | 2016-04-26 | 2020-10-16 | 미쓰비시덴키 가부시키가이샤 | Elevator inspection operation device |
| CN107473061B (en) * | 2016-06-08 | 2020-10-16 | 奥的斯电梯公司 | Maintenance safety device for elevator system and operation method thereof |
| EP3301051A1 (en) | 2016-09-29 | 2018-04-04 | Inventio AG | Lift facility with shaft lighting |
| EP3366628B1 (en) | 2017-02-27 | 2019-06-19 | KONE Corporation | Safety system for a service space within an elevator shaft |
| ES2817402T3 (en) | 2017-06-22 | 2021-04-07 | Otis Elevator Co | Elevator lintel door lock safety devices |
| US10889465B2 (en) | 2017-07-31 | 2021-01-12 | Otis Elevator Company | Mechanical hoistway access control device |
| US11390492B2 (en) | 2018-05-01 | 2022-07-19 | Otis Elevator Company | Method and assembly for positioning an elevator door interlock |
| US11548761B2 (en) | 2018-07-31 | 2023-01-10 | Otis Elevator Company | Detecting elevator mechanics in elevator systems |
| US11524877B2 (en) * | 2019-12-13 | 2022-12-13 | Robert Webster | Elevator safety mechanism |
| JP7473885B1 (en) | 2023-12-08 | 2024-04-24 | フジテック株式会社 | Elevator car door device and elevator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| IT1203821B (en) * | 1983-05-25 | 1989-02-23 | G M V Service Srl | AUTOMATIC DEVICE TO CREATE A SAFETY COMPARTMENT IN LIFT OR LIFT-FREE EQUIPMENT |
| SE456417B (en) † | 1984-03-20 | 1988-10-03 | Sven Agren | Lift shaft with cage |
| JPH0416472A (en) † | 1990-05-11 | 1992-01-21 | Toshiba Corp | Safety device for elevator |
| GB9105298D0 (en) * | 1991-03-13 | 1991-04-24 | Thames Valley Lift Company Lim | Improvement in lift control systems |
| CA2166841C (en) * | 1995-01-31 | 2006-08-22 | Heinrich Foelix | Temporary working space protection |
| JPH08259137A (en) † | 1995-03-28 | 1996-10-08 | Hitachi Building Syst Eng & Service Co Ltd | Maintenance operation device for hydraulic elevator |
| US5806633A (en) * | 1995-12-22 | 1998-09-15 | Macuga; Henry J. | Elevator safety system incorporating false pit |
| JPH11130355A (en) † | 1997-10-31 | 1999-05-18 | Hitachi Building Systems Co Ltd | Controller for elevator |
| FI108124B (en) * | 1998-03-18 | 2001-11-30 | Kone Corp | Elevator safety device |
-
1999
- 1999-12-20 AT AT99204429T patent/ATE299835T1/en not_active IP Right Cessation
- 1999-12-20 EP EP99204429A patent/EP1110900B2/en not_active Expired - Lifetime
- 1999-12-20 DE DE69926244T patent/DE69926244T3/en not_active Expired - Lifetime
-
2000
- 2000-12-20 WO PCT/NL2000/000936 patent/WO2001046058A1/en active Application Filing
- 2000-12-20 AU AU32442/01A patent/AU3244201A/en not_active Abandoned
- 2000-12-20 CN CN00819120.4A patent/CN1227150C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE69926244T3 (en) | 2012-01-05 |
| WO2001046058A9 (en) | 2002-09-06 |
| AU3244201A (en) | 2001-07-03 |
| EP1110900A1 (en) | 2001-06-27 |
| DE69926244D1 (en) | 2005-08-25 |
| DE69926244T2 (en) | 2006-05-24 |
| ATE299835T1 (en) | 2005-08-15 |
| WO2001046058A1 (en) | 2001-06-28 |
| CN1434784A (en) | 2003-08-06 |
| EP1110900B2 (en) | 2011-07-27 |
| EP1110900B1 (en) | 2005-07-20 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MISSUBISHI ELECTRIC CORP. Free format text: FORMER OWNER: MITSUBISHI ELEVATOR EUROPE B.V. Effective date: 20111028 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111028 Address after: Tokyo, Japan, Japan Patentee after: Missubishi Electric Co., Ltd. Address before: Dahl, Holland Patentee before: Mitsubishi Elevator Europe B.V. |
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| CX01 | Expiry of patent term |
Granted publication date: 20051116 |
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| CX01 | Expiry of patent term |