CN103043508A - Evacuating system of elevator - Google Patents

Abstract

An evacuating device of a lift car (1) is at least provided with a braking control assembly (8) installed on a lift car (1) and an evacuating driving device (10). When an elevator breaks down, an evacuating control device in the evacuating driving device (10) starts an evacuating route, a damper brake is released, and devices for maintaining the speed of the evacuating route are started by an evacuating control bag. When the elevator reaches the next dockable floor, a braking pawl of the braking control assembly (8) enters a switch opening or moves on a switch brake, and final braking can be achieved by a braking control contact. Simultaneously, a safety door is opened under the effect of an opening spring, and passengers trapped in the lift car can be evacuated. The evacuating system is provided with a plurality of devices for ensuring the speed of the elevator evacuating route.

Description

The evacuating system of elevator

Technical field

In hoistway, move and be furnished with the lift car of evacuating system, has a cover automatic door control system, car is by moving along the vertical direction with the motor-driven of brake equipment and driving device, the passenger can control elevator by handling driving and instruction control setup, when Lift out of order, make car automatically move one section to nearest bus stop by the evacuation drive device and evacuate stroke, and then make stranded passenger be able to safe escape.

Background technology

The present known multiple different evacuating system that has.Their formation generally all comprises: be used for passing through the battery-powered direct or indirect emergency driving device of current inverter, the also battery-powered evacuation control convenience with emergency safing circuit and additional hoistway read out instrument as elevator motor and door motor.Concerning the wirerope elevator that hangs counterweight, generally to utilize as far as possible the energy of position of unbalance mass, as the propulsive effort of evacuating stroke.Owing to situation like this often occurs, thereby just can measure load moment and direction thereof in the drive pulley place before the evacuation stroke begins, and then can go out according to dominant load moment set direction the hand of rotation of emergency driving device.After this, just only need to be for non-equilibrium state, the not fully loaded and gram such as car

When taking friction force, designed evacuating the required propulsive effort of stroke again.

Have been introduced in one piece of technical article of the 19-22 page or leaf of " elevator report " magazine first volume (the 1-2 month in 1994 number) about the state of the art of this system.

This type of evacuating system is ills and explanatory note in GB2017346.Elevator motor is battery-powered by the first rectifier, and braking Pei puts then battery-powered by the second rectifier.Moreover, described as above-mentioned " elevator report " contained literary composition, the hand of rotation that is conducive to torque most can be selected too.In a word, this solution provides emergency source of electrical power for existing control and driven unit.

In order to drive towing machine and door motor and for the hoistway display equipment provides energy, must to change to energy (electric current and frequency converter), so technical risk increases, cost is very high, moreover, because the total system formation is unavoidably more complicated, so the reliability that uses also decreases.

The simple passenger oneself evacuating system of ordinary steel cable towed elevator adapted was done to introduce in Swiss Patent standard CH 1.When the warning passage was connected, square lift car broke away from support guide, and by the wirerope capstan winch be positioned at centrifugal damper brake on the support guide and be down to " fire escape " and locate, here, the passenger opens manual revolving door can leave car.The energy of position of car body is only as the propulsive effort of evacuating stroke.

This self-evacuating system does not have control setup and hoistway display equipment, and this elevator is not equipped with automatic hoistway door and car door yet.The elevator of existing structure form can't adopt this system, and particularly because of the relevant regulations requirement, at the elevator run duration closing appliance of a car will be arranged at least is autoshutdown.In addition, diagram and explanation do not point out how just can make car rest in " fire escape " yet.

Evacuate the afterwards stop of car of stroke and formed a special problem, especially all the more so when the passenger does not think maybe can not use existing hoistway display equipment.For addressing this problem, had some special ways, Here it is utilizes mechanical means in the pressure mode car to be rested on a certain floor.

US Patent has disclosed one for No. 4015689 and has overlapped the safe cut-off device that is applicable to hoistway.Whether utilize light barrier instrument to survey car faster.If faster, then the braking bolt of hoistway both sides is headed into the car bump braking bolt of faster operation out of service.For the buffering collision of closed effect, to brake spiral shell journey equipment through the damping mode processing and fabricating, thereby cause a bit of stopping distance, what have reduced some damping values.

This equipment is not plan at first nor is suitable for use in the braking of evacuating end of run, and in addition, it is to be solved to also have many technical matterss to have.

Number patent is described and has been showed the pawl that can extend from car, when they drop on the outshot of hoistway, can prevent the long hydraulic elevator car slow decreasing of one deck length of the halt in the above.

This application of principle in the terminal point of evacuating stroke, certainly will be required very low running velocity, otherwise, collide too quickly or to cushion equipment cost too high.Yet it is excessively low to evacuate travel speed, will make to evacuate the used overlong time of stroke, this obviously stranded passenger wish in no instance.

Number patent has showed that a kind of mechanical type hoistway shows the equipment that combines with evacuation, and this is a kind of hydraulic/mechanical system without electric energy.A hydraulic pressure memory storage provides power as the energy storage device to HM Hydraulic Motor, and an energy power-transfer clutch also will be provided, and is used for promoting the hydraulic braking lock.What be used as under certain conditions the hoistway read out instrument is lean-out

Oblique roller, it can be up in floor zone on the swash plate that is installed on the well enclosure, then starts the parking control cock by the mechanical connection with machine room.

Concerning the safety apparatus that quality is had relatively high expectations, this hydraulic efficiency pressure system is installed extremely requires great effort and pays wages huge, let alone now also there not being hydraulic pressure to deposit the filling equipment of energy device and filling equipment and the power watch-dog that pressure is deposited the filling device of energy device, same, present method of also not opening the door.

The purpose that this patent invention is wanted to reach is a kind of Elevator Evacuation system of design, and it can eliminate the existing deficiency of known system, can make stranded passenger automatically and reliably withdraw car with simple means, suitable expense again.

First advantage of the present invention is, does not need the outer personnel of car to assist to evacuate, thereby does not need special-purpose means of communication, such as telephone set, remote monitor etc.

The unexpected interruption that moves because of elevator suffers the passenger who is stranded can not feel that isolated or body faces dangerous situation, because car can be namely again driven after the not long time, then car door partially opens to I haven't seen you for ages.This that is to say that stranded passenger can come in contact with the external world fully, and as long as firmly just can open car door gently with the edge of pulling after the hand grip, the passenger can withdraw.

Other advantages of this patent invention are: each part of this system can consist of flexibly, therefore, can adapt to different elevator devices, door system and user's specific (special) requirements.

The following drawings introduction be an enforcement of carrying out according to method provided by the invention

Example.

Fig. 1: the elevator of being furnished with evacuation equipment;

Fig. 2: the overall picture of evacuation drive device;

Fig. 3: the thin section of braking control assembly;

Fig. 4: the braking control assembly during the evacuation stroke;

Fig. 5: the braking control assembly of evacuating the stroke final stage;

Fig. 6: the braking control assembly of reseting stage;

Fig. 7: with the guiding parts of switch mouth and stroke guide rail;

Fig. 8: with the guiding parts of on-off element and stroke guide rail;

Fig. 9: the part of braking pawl;

Figure 10: door drive system;

Figure 11: the braking force control system of car upside;

Figure 12: the diagram of circuit of evacuating stroke;

Figure 13: the diagram of circuit of return stroke.

Base portion and the functional unit of being furnished with the elevator of detrainment device are presented among Fig. 1.Lift car is by " 1 " representative, it can be in hoistway (7) by track adjusting wheel (2) along guide rail (6) up-and-down movement.Lift car (l) links to each other with counterweight (5) by supporting mechanism (3) and by drive pulley (4).Corresponding brake control mechanism is positioned at opposite both sides, car (1) above and below, namely is placed on the left side of car bottom surface and the right side of car end face.Drive pulley (4) and drive unit for lift (9) mechanical connection are electrically connected with elevator control gear (11).By the door system of elevator control gear (11) control with " 12 " representative, and with elevator control gear (11) electrical connection and the evacuation drive device that is connected with drive unit for lift (9) phase tool with " 10 ' ' represent.

The element of each mutual machinery and electrical connection is presented among Fig. 2 in the functional unit.The doubly-linked wiring represents mechanical connection, and single connection lead represents electric joining.Drive unit for lift (9) comprises the driving device (13), a brake equipment (14) and the motor (15) that are connected on the drive pulley.

Door system (12) comprises a door drive that separates with door leaf (23) (door leaf does not show) in this figure, it acts on traction and block sytem (24) and door motor brake equipment (25).In the door drive of being furnished with door motor brake equipment (25), ask that in the running process of elevator phase door is closed all the time and locked, the simultaneously door motor work of not starting shooting only has door motor

Brake equipment (25) is in running order.Traction and block sytem (24) be for making car door and hoistway door mechanical connection and separate at the elevator place of arriving at a station, and at elevator locking car door in service.

In evacuation drive device (10), power-transfer clutch (16) is drunk the left side and is linked to each other with motor (15), and the right side links to each other with driving device (17).Power-transfer clutch (16) is preferably used electromagnetic type, and can receive corresponding instruction from evacuating travel control device (21).Under no current state, the mechanical connection that motor (15) and driving device (17) are asked interrupts.When power-transfer clutch (16) was in running order, driving device (17) sent rotatablely moving of motor (15) to brake power generating machine (18).The transmitting ratio of driving device (17) is more preferably greater than 1:1, and can the flat belt conveyor of adapted, and tooth-shaped conveying belt arranges banded wheel or spur gear in one section or several sections belt conveyor.Brake power generating machine (18) can be with simple DC machine.With battery (20) with electrical connection can by a pair of same polarity and realize by evacuating the switch relay (19) that control setup (21) controls.Electrical connection between brake power generating machine (18) and the evacuation control setup (21) is for detection of operating condition and the hand of rotation of brake power generating machine (18), because battery (20) and elevator control dress

Putting between (11) has electrical connection, so brake power generating machine (18) remains at full load condition.Evacuate control setup (21) and be connected 12 with battery (20) with door system) other internal electrics be connected exchange for electric instruction and signal.From evacuate that control setup (21) outwards draws with arrow and digital graticule represent with following shown in the braking control assembly corresponding element link to each other.

As shown in Figure 3, braking control assembly (8) by buffer element (30) be installed in car (1) below, preferably be installed at least a side of car.Braking control assembly (8) comprises a bearing support (40), and the braking pawl (brakepawl) (26) that is loaded in the bearing support (40) is installed on the downward supporting bracket (31), and can rotate.Braking pawl (26) is made into rack form, and a horizontal arm (33) and a vertical arm (32) are arranged on it.Horizontal arm (33) stretches to the right, and maintenance position as shown in the figure, its outermost end is positioned at upper side by a reposition element (34) that is fixed on the bearing support (40), is used for propping up acting on horizontal arm (33) meal with wine spring (35) power downwards.Reposition element (34) is by consisting of such as electromagnet.It is upper in order to rotate in a jiao of support that braking pawl (26) is installed in supporting bracket (31).The starting element (38) that the application force that utilizes expansion bolt (37) to prop up pawl spring (39) can retract pawl control stalk (36) is positioned on the outer vertical of bearing support (40).Starting element (38) can be used such as the electromagnet manufacturing.State as shown in FIG., because starting element (38) is failure to actuate at this hour, so pawl control stalk (36) under pawl spring (39) application force, is close on the end face of horizontal arm (33) by its vertical upper abut flange (41).As shown in the figure, the abut face (42) that extends to flange (41) does not to the right contact with braking pawl (26).Roller (27) is contained in the bottom of upright arm (32), the below is stretched out and is tangentially risen to the right and forms a circular arc breaker (28) left, and there is a switch flank (29) that is positioned on the less remainder of arc radius (28) termination of this breaker prolongation to the right.Breaker (28) or switch flank (29) drive the braking control contact (43) that is fixed on bearing support (40) sloping portion lower end when braking pawl (26) rotates centered by axle, braking control contact (43), the electrical contact of starting element (38) and reposition element (34).And connect

Contact leads to as shown by arrows in FIG. evacuates control setup (21) and driving and instruction control dress

Put (11).

Be placed in the upper switch mouth with upper inlet limit (44) and lower stress braking limit (46) of guide rail (6) and use in the drawings " 45 " expression.Show among Fig. 7 that the concrete profile of switch mouth (45) will be introduced below.

Fig. 4,5 and 6 has shown the braking control assembly (8) under the different operating state, and these will be introduced in function declaration in more detail.

Fig. 7 has shown the possible structure of the guide rail (6) that is aided with local parking parts.Guide rail shown in the figure (6) preferably uses deflection technique that its section is made the cap shape, and its side is used for being fixed on well enclosure or upholder.The face that extends to side to the right respectively has a track (48) that carries over operation for track adjusting wheel (2).The 3rd orbit (47) that provides for track adjusting wheel (2) is the end face of guide rail (6).Switch mouth (45) is arranged between the contiguous floors, and bird orbit (47) is positioned on the same end face and the arrangement that is in line side by side.Switch mouth (45) is the vertical rectangular opening form of tangent plane, it is dimensioned to the braking pawl (26) of freeing and can partly screws in the switch mouth (45), its width is equivalent to brake the twice of pawl thickness, it highly is like this design: the vertical distance of switch mouth after evacuating stroke during finally by mechanical braking greater than service direction on the braking distance of car (1), should guarantee that when braking pawl (26) changes in the switch mouth switch mouth is lower than several centimetres of braking pawls.Parking edge (46) is used as safe abut, and can be at machinery

Braking force finally stops car (1) when very weak and sustains the collision load of car quality.

Fig. 8 has shown the modification element of mechanical switching element among Fig. 7.What replace the switch mouth is a breaker (52) of outwards giving prominence to, and its upper end is outward-dipping inclined-plane (60), and its lower end is notch-cut type braking abut (53).The flat that extends in parallel with guide rail (6) of breaker (52) has one section along the vertical distance of service direction, this distance after evacuating stroke during finally by mechanical braking greater than the braking distance of car (1).On position as shown in the figure, breaker (52) is activated when elevator is descending and surpasses the braking control action.Parking abut (53) can finally stop car (1) as safe abut and sustain the collision load of car quality when machine made power is very weak.

Fig. 9 has shown the shape of the braking pawl (26) that is suitable for breaker (52).The difference of braking the shape of pawl (26) shown in this shape and Fig. 3 is: the diameter of the axis of rolling (27) has diminished, in order that in case of emergency it can be across braking abut (53).

The central door structure that Fig. 10 has shown, with traditional door system (12)-sample with a door drive (23).Door drive (23) comprises a door motor with damper brake (25) (54), a belt transmission (58), a crank pulley (61) and horizon bar (57) and dwang (56).Dwang (56) starts traction and door lock assembly (24) when being engaged on mutually an opening process and beginning by the little guide rod on the door bolt fan (50), and this device comprises traction body (24-1) and door lock (24.2).This door drive also is equipped with a small-sized Compress Spring (59) of asking that usually is in crank pulley and door drive bracing frame (51).In order that at door

When actuating device (23) turn-offs horizon bar (57) is pushed back the permanent center point of crossing curved bar pulley (61).Rule of thumb, after evacuating stroke, when elevator arrived at a station, the application force of this Compress Spring (56) was not enough to sliding door is opened to the degree of 10-15cm.Therefore, installed again a spring (49) additional, it is placed between the bracing frame (51) and left side horizon bar (57) of door drive.The application force of this spring (49) and stroke are like this designs: elevator arrives at a station and door drive (23) when closing, and two horizon bars (57) are pulled to the position shown in the dotted line among the figure at least.. this will cause door to be opened to being equivalent to double the width of (X) and being enough to allow single withdrawing, or firmly just door can be opened a little at least again.According to the research that crank motion is learned, have a bit very important, namely the crank shaft tip of crank pulley (61) needs just can open Door by Hand in the position of departing from permanent center at least 450, otherwise it is required firmly too large to open Door by Hand, especially painstakingly aobvious to old passenger.

The function of the equipment of design is described further in connection with Fig. 1-10 according to the present invention.The reason of evacuating the initiation of stroke imagination is to drive in the carrying operational process and the normal et out of order of CCE (2) or decompression phenomenon.Suppose that reason is the latter, i.e. decompression in the carrying operational process, lift car this moment (1) is braked by cutting off motor (14) and descending brake equipment (15).Further supposition lift car (1) is fully loaded, then drives load and causes elevator to move downwards.If car this moment (1) is parked on the floor just, just the passenger can walk out immediately car and withdraw.Yet in fact there is a strong possibility will be parked in two somewheres between the floor passenger is closed in car (1) for car (1).Evacuation control setup (21) has been arranged, waited for after a bit of time, before elevator does not begin normal operation again, just can begin to evacuate stroke, realized passenger cage promptly stop outside Men Qu.

The emergency light that does not show among the figure and is competed, and the expeditious measures explanation that does not show equally in the drawings shows (this explanation is enrolled in advance and evacuated in the control program) to the passenger.At this moment the automatic starting procedure by the evacuation stroke of evacuating control setup (21) control causes impelling actuating lever (triggering pawl) (36) retraction, therefore braking owing to starting element (38) is activated

Pawl (26) screws out left until roller (27) touches guide rail (6) (such as Fig. 4), because after out of control or decompression, reposition element (34) is dead electricity also, then spring (35) just will be braked pawl (26) and shift as shown in Figure 4 position onto, at this moment brake the moving possibility that just becomes of the export-oriented rotation of pawl (26).

Simultaneously, power-transfer clutch (16) engages, and brake equipment (14) is raised.Since drive load moment and be lower to, so car (1) begin to move down, and by power-transfer clutch (16) and driving device (17) driving brake power generating machine (18).Traction body (24.1) changes opening over to, and (wider when this state links to each other than with hoistway door), therefore door can not be opened.The brake power generating machine (18) that not yet links to each other with battery (20) at first provides voltage as tacho generator and to evacuating control setup (21), and its polarity depends on hand of rotation.After the detection-phase, link to each other with battery (20) by the refining moving relevant utmost point of electrical generator (18) of relevant switch relay (19).Under the effect that drives load, the rotative speed of the brake power generating machine (18) of the work of preferably starting shooting lastingly increases until its output voltage reaches the magnitude of voltage of battery (20), is no more than at most io%.Have the battery (20) of little internal resistance as the stabilization of speed load of brake power generating machine (18) this moment, and lift car (l) just moves downwards with very low constant speed.Preferably by suitably selecting driving device

(17) transmitting ratio provides a low-down speed for evacuating stroke, because the specified output of brake power generating machine (18) can be maintained on the quite little numerical value like this, and then improves safety.

During the evacuation stroke that moves downward, on the position of roller (27) switch mouth (45) below guide rail (6) surface is rolled to of braking pawl (26).When proximity switch mouth (45), also just arrive hoistway door bolt district, the movement of draw gear (24) between the traction wheel of a hoistway door causes unblanking of car door and hoistway door.When door is in machinery and unblanks, spring (49) and open spring (59) and car door and hoistway door are pushed open so that can be seen the floor that arrives by larger crack between a door and its frame, and aware the final stage of evacuating stroke.As mentioning in the earlier drawings explanation, further open the door by additional unlatching spring (59) and just open the door with hand again

Easier.For adapting to relevant regulations, the elastic force of spring (49) only need back into crank driving device just above permanent center and get final product.Owing to used unlatching spring (59), special feed and the control to the door motor that are provided by evacuation control setup (21) have also just no longer needed.Open any position in the mechanical force driver element that spring (59) also can be positioned in door drive.Arrive switch mouth (45) and will cause braking pawl (26) further to inner rotary until the position shown in Fig. 5, therefore, breaker (28) also is pushed to the left side, its drive wheel is in breaker (28,) on braking control contact (43) activated by the switch flank, and then causing working immediately of brake equipment (14), the electrical connection that power-transfer clutch (16) disengagement and brake power generating machine (18) and battery (20) are asked is interrupted.Lift car (l) is stopped by the brake equipment that works (14) this moment.Because the running velocity of evacuating in the stroke is lower, so the braking distance of lift car (1) is very short.Evacuating the speed of stroke and the vertical extension of switch mouth (45) is

Design like this: after car (1) was slack, braking pawl (26) just touched less than parking edge (46).If the braking force of brake equipment (14) is too little, then brakes pawl (26) and will prop up parking edge (46) and car (1) is cut like clockwork in the hoistway door district.At this moment the passenger can feel the slight vibrations through buffer element (30) alleviation.Because door has been opened very widely, even opens wide allows not and singlely also can slightly just open fully with hand-power by car door and the hoistway door of having unblanked, the passenger can withdraw in succession.

In order to push back and forth with little hand-power at the floor place, as previously described, the whole door drive mechanism on the car must be no-load.This just needs lever gear door dynamic braking device (25).Under the present art condition, this just also needs to suppose that the structure of whole driver train is non-self-locking.The function course leader of evacuating stroke can be referring to the diagram of circuit among following Figure 12.

Concerning elevator operation person, importantly: a complete set of equipment can automatically return to normal condition after evacuating the stroke end.This situation just may occur when the reason of evacuating running is excluded yet only have.If this reason is the decompression of short time, after postponing one section schedule time power line voltage recovery, the so-called return stroke described in Fig. 10 starts.

When having possessed the condition of return stroke, evacuate control setup (21) and send instruction to driving and instruction control setup (11), subsequently, after car door and hoistway door are closed and are locked, elevator begins with the upwards operation of predetermined running velocity, speed uplink is the low velocity of special stipulation, can fix in this case to be not more than 0.2 meter per second.At the run duration that makes progress, system

Moving pawl (26) is separated from switch mouth (45), is pushed to the right side so that makes braking control contact (43) get back to original position by breaker (28).Because initiating element (38) dead electricity after evacuating the stroke end, actuating lever (36) is against on the end face of horizontal arm (33) in the effect of little spring power.

In addition, owing to again voltage is added on the reposition element (34) by the vital circuit that drives and instruction control setup (II), space between horizontal arm (33) upside and the reposition element (34) is pushed to the right side because braking pawl (26) is separated from behind the critical point (45) and diminishes, so braking pawl (26) can be towed back under the effect of reposition element (34) electromagnetic force to shown in Figure 3 initial

The position, and then mechanically be fixed on this position by the actuating lever that is braked (36) again.The reverse starting of braking control contact (43) also impels and drives and CCE (11) starter motor (15) and arrive command speed, and makes lift car (l) normally upwards run to a stop then to be parked in exactly there.When lift car (1) arrives this floor,

Namely again change normal operation position over to.

The indelible fault that forms because of the deficiency of control or adjusting aspect if cause evacuating the reason of stroke, return stroke can not occur then, and in car and on the floor, will demonstrate to the passenger that preparation takes a lift the printed words of " stopping just to use ", then should report situation to monitoring and control centre according to current technological means by logical program.

With regard to the wirerope elevator, the driving load that does not drive brake power generating machine (18) also is a kind of condition of loading.At this moment, driving brake power generating machine (18) by switch relay (19) is connected twice with the two poles of the earth of battery with very short time gap, thereby can to measure for twice for driving the brake power generating machine be connection number of times and the polarity that lift car institute must electric current, can select again to be conducive to energy-conservation hand of rotation.Therefore, in the light situation of car load, evacuate stroke and will upwards move.

Make progress owing to evacuate the direction of stroke, so second braking control assembly (8) is activated.Second braking control assembly (8) is positioned in the upper side of car (1), and preferably is positioned at around the opposite of horizontal rotational shaft 1800, shown in Fig. 11.Switch mouth (45) is installed in the relative side of guide rail (6) with foregoing same method, difference is switch mouth (45) along move up vertical distances between the two braking assemblies of two brake assemblies (8), and these switch mouths.It is parking edge (46) that the upper surface must be construed to.Then braking pawl (26) rotates in the same way but only enters nearest upper switch mouth (45).Return stroke and next return stroke are probably to move the just opposite direction of operation with above-mentioned fully same mode.

With regard to the wirerope elevator, the size of battery (20) capacity is that the required energy of movement during according to lift car (1) balanced load decides.In this case, evacuation drive device (10) is not also born load, and only need overcome the friction force of drive unit for lift (9).

Cancelled the roller (27) on the braking pawl (26), the profile of whole braking pawl (26) just can be corresponding compacter, is made of one the formula structure.Because it is less that the later on relative guide rail (6) of startup presses, and even do not need to use lubricating oil, is to hear faint grating only at most, and function itself is unaffected.

Cancelled switch mouth (45), the switch projection (52) among Fig. 8 also can be used for starting switch pawl (26).Can equally guarantee still that for switch projection (52) in the weak situation of machine maple braking force car (1) is parked in the floor place reliably, need adapted braking abut (53).In order to ensure roller (27) and braking pawl (26) engagement, preferably do the diameter of roller littlely.In addition, in order suitably to start braking contact (43) in the situation, braking pawl (26) or breaker (28) also should have the profile that is adapted to this working forms.Evacuate control setup (21) and also should be equipped with corresponding flogic system, in order to make effect that braking contact (43) moves in switch projection (52) with identical to the effect of its precession switch mouth (45).Replace the advantage of switch windows (45) to be with switch projection (52): these switches projections (52) can be positioned in any other position, for example, can be placed on the well enclosure, are used with traditional T-shape guide rail.Certainly, according to Fig. 7, also can manage switch mouth (45) and guide rail (6) are separated.The switch mouth (45) of this separate type can be positioned in equally with the irrelevant hoistway of guide rail in Anywhere.

Above-mentioned evacuation equipment also can be used for non-steel cable type elevator.This elevator does not have counterweight and uses independently drive configuration.The car quality of this elevator is larger, thereby must take at selected brake power generating machine (18) or when selecting following arbitrary brake equipment.On the other hand, evacuate the route of stroke usually always along service direction, i.e. operation downwards, just need not to be accompanied by again like this decision procedure of service direction at evacuation control setup (21), but also can simplify the structure of whole evacuation equipment, this is because only have one to place the control assembly (8) below the car (1) to be moved.If necessary, two brake assemblies (8) all can be placed on below the car (1), then work simultaneously, brake equipment malfunctioning in emergency circumstances stop simultaneously car (1) from both sides.

Has brake power generating machine (18), driving device (17) and power-transfer clutch (16) be simultaneously for subsequent use to be had in the situation of adjustable brake equipment (14), evacuate the speed of stroke and regulate and to realize by adjustable brake device (14), because the adjusting of braking force is that the adjusting of speed must be controlled by evacuation control setup (21) certainly in the evacuation process.

In the modification braking of his evacuation stroke braking of another kind of letter, used a cover fluid brake device, it is driven with the tor-con on the driver by driving device (17) and a kind of automobile.Because this fluid brake has typical abrupt slope moment characteristics, so can guarantee equally to evacuate the larger stability of travel speed.Because the braking force of fluid brake device is designed to be quite large, thus can utilize power-transfer clutch (16) that this device and motor (15) direct mechanical are linked together, and do not use driving device (17).

Driving device (17) can be made in a different manner.The problem of discussing is: use which type of driving device, i.e. conveyor type (flat belt conveyor, " V " shape belt conveyor, flat-toothed belt), friction drive or spur gearing.Gearing factor depends on braking or the propulsive effort of institute's adapted, evacuates speed, functional reliability and the factors such as evacuation time of allowing of stroke.

Use the electric vortex brake equipment can obtain too the braking effect of fluid brake device.The eddy current brake device can make an independently equipment replacement brake power generating machine (18)

And can directly be connected with motor (15).

As another kind of possibility, for example can be activated by the direct current (DC) from battery in the two-phase of evacuating stroke phase lal motor (15), its effect is the same, also can effectively brake.Owing to used the direct current (DC) braking of motor (15) just to need not to re-use the equipment such as power-transfer clutch (16), driving device (17) and brake power generating machine (18), but need in this direct current circuit, use switch relay (19).

Claims (10)

1. the evacuating system of lift car (1), car (1) moves in hoistway (7) has a cover automatic door control system (12), drive along the vertical direction operation by the motor (15) with brake equipment (14) and driving device (13), the passenger can be by handling driving and referring to

Make control setup (II) control elevator, when Lift out of order, make car automatically move one section to nearest bus stop by evacuation drive device (10) and evacuate stroke, and then make by solid passenger and be able to safe escape, this cover system is characterised in that: evacuation equipment comprises the device (16-20) that determines to evacuate running velocity, at least one finally is parked in brake control apparatus (8) on the floor aspect with elevator, indicate the aobvious word device (45,52) of hoistway of floor position and the device (49) of door leaf (50) being pushed open at the terminal point of evacuating stroke.

2. such as the evacuation equipment in the claim 1, it is characterized in that: brake control apparatus (8) comprises that shock absorber (30), one movably brake pawl (26), starter gear (35,36,37,38,39), the device of reset attachment (34) and detection braking pawl position.

3. such as the evacuation equipment in the claim 2, its characteristic is: the device that detects braking pawl position comprises a breaker (28 with switch flank (29), 28r) (28,29, contact (43) is controlled in the braking that 28r) activates by breaker with one.

4. such as the evacuation equipment in the claim 2, its characteristic is: the young device that rises of brake control apparatus (8) comprises that an initiating element (38), one are connected to actuating lever (36), a pawl spring (39) and the spring (35) that will brake pawl (26) back-out in the situation of starting on the braking pawl (26) by expansion bolt (37).

5. such as the evacuation equipment in the claim 2, its characteristic is: braking control assembly (8) comprises the reposition element (34) that braking pawl (26) is retreated to initial position.

6. such as the evacuation equipment in the claim 2, its characteristic is: braking control assembly (8) joins by buffer gear (30) and lift car (l).

7. such as the evacuation equipment in the claim 1, its characteristic is: the hoistway information of indicating floor level is to be sent by the switch mouth (44,45,46) with import edge (44) and parking edge (46).

8. such as the evacuation equipment in the claim 1, it is characterized in that: the hoistway information of indicating floor level is to be formed by the switch projection (52) with braking abut (53).

9. such as the evacuation equipment among the claim l, it is characterized in that: the device that determines the running velocity of elevator evacuation stroke comprises a power-transfer clutch (1 6), a driving device (17), a battery (20), a brake power generating machine (18) and switch relay (19).

10. such as the evacuation equipment in the claim 1, its characteristic is: determine the elevator evacuation

The device of running speed is realized by adjustable brake device (14), such as the evacuation equipment in the claim 1, its characteristic is: the device that determines elevator evacuation running speed is realized by liquid brake device, such as the evacuation equipment in the claim 1, its characteristic is: the device that determines elevator evacuation running speed is realized by the electric vortex brake equipment, such as the evacuation equipment in the claim 1, it is characterized in that: the device that determines elevator evacuation running speed is seen in fact by the DC excitation of motor (15), such as the evacuation equipment in the claim 1, its characteristic is: finished by the unlatching spring (49) in the door system (12) at the equipment that the evacuation end of run is pushed door leaf (50) open.

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