CN101479178A

CN101479178A - Lift driving and securing device

Info

Publication number: CN101479178A
Application number: CNA2007800225997A
Authority: CN
Inventors: 马努尔·马查多; 雅格·勒平
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-24
Filing date: 2007-04-23
Publication date: 2009-07-08
Also published as: FR2900140B1; EP2013131A1; WO2007125188A1; FR2900140A1

Abstract

The invention concerns a driving and security device for an elevator driven by a gradual and secure mechanism via a safety mechanism. The invention is characterized in that the elevator car advances along a set of gradually advancing rails guided by car guides (45), the driving and safety mechanisms being incorporated in a frame rigidly linked to the elevator car, the advancing mechanism including a set of advancement locks (1), one advancement lock (1) being mounted on each of the gradually advancing rails, the advancement locks being successively unlocked and pushed by motoring means and the distribution device thereof, the advancement lock (1) in unlocked position acting by shifting its movement onto a bearing device (42, 43) common to all the locks, the bearing device (42, 43) causing the elevator car to advance along the gradually advancing rails.

Description

The propelling of elevator and safety device

Technical field

The present invention relates to a kind of propelling and safety device of elevator.The present invention both had been applicable to that the small-sized household elevator also was applicable to the public elevator of building.The present invention is particularly suitable for vertical transport, but equally also can be used for the operation of bevelled or serpentine track.The present invention can be used to shipping goods and people.The present invention is characterized in that has an angle of rake special entity, this propelling unit is in conjunction with safety device, and more precisely this safety device has precedence over propelling unit.

Background technology

There are many promotion and safety devices that are used on the elevator in the prior art.In first kind of form, prior art provides cable system, described cable system has a propulsive mechanism, described propulsive mechanism has a separation device, this separation device starts the hawser motion, described cable system also has a safety gear, and described safety gear is triggered when used during elevator falling, and lives elevator by a safety cable retardance.First shortcoming that exists in the solution of first kind of form is: because hawser passes whole device from bottom to top, so manufacturing and maintenance cost are very high.Second shortcoming that exists in the solution of first kind of form is: can not expect in advance, just carry out safety guard-safeguard after possible problem takes place, therefore, a special device need be acted on the safety cable and just can work.In second kind of form, prior art provides the equipment that is called rack gear arrangement, and rack gear arrangement has mechanical mechanism, and described mechanical mechanism is advanced along tooth bar.First shortcoming in the solution of second kind of form is: this equipment is very expensive, damages easily and maintenance difficult.Second shortcoming in the solution of second kind of form is: it not too is fit to the limited elevator of volume, and mainly is suitable for the gig on the scaffold.

Summary of the invention

Main purpose of the present invention provides a kind of propelling and safety device, and safety is before driving.The invention provides a kind ofly no matter be to use, stop, the device of safety all the time under operation or the inverted running state.

An object of the present invention is to provide a kind of propelling and safety device, this device is saved and is made and service expenditure.Maintenance needs to change the hawser of high price easily and not.

An object of the present invention is to provide a kind of propelling and safety device, this device is suitable for the elevator crib or the elevator of Any shape.

An object of the present invention is to provide a kind of propelling and safety device, this device has a little volume, and noise is not obvious, can obtain a continuous pulsation-free motion.

An object of the present invention is to provide a kind of propelling and safety device, this device is solid, firmly and with elevator crib work.

Topmost one side, the invention provides a kind of elevator, this elevator can advance along one group of track of advancing, this device comprises the track stopper that advances, each stopper that advances all acts on the flat board, this flat board is that all stopper is shared, and this flat board acts on the base plate of elevator crib, and elevator crib is advanced along the track of advancing.

In one aspect of the invention, described propelling and safety device be placed in elevator crib below.Move up described propelling and the flat board of safety device impetus on elevator crib.Move down, this device supports described flat board, the described elevator crib of described flat support.

In one aspect of the invention, the drive motor of elevator promotes the flat board rotation with convex slope of the circle of a level, and dull and stereotyped edge adapts with the convex slope that is arranged on below the stopper.Dull and stereotyped rotation is moved the convex slope below the stopper, thereby changes the state of each stopper gradually, makes stopper reach retardance state or travel condition that makes progress or downward advanced positions.

Other purposes, by the description of a following instantiation, characteristic of the present invention and advantage will more obviously disclose out.This example provides by the mode that illustrates, in conjunction with following

Description of drawings:

Fig. 1 a and Fig. 1 b have shown the lateral plan of stopper respectively, and Fig. 1 a is the retardance state, and Fig. 1 b is a travel condition.

Fig. 2 a and Fig. 2 b have shown the front elevation of the head of stopper respectively, and Fig. 2 a is the retardance state, and Fig. 2 b is a travel condition.

Fig. 3 has shown the front elevation according to elevator of the present invention.

Fig. 4 has shown the front elevation of driving and safety device.

Fig. 5 a, Fig. 5 b, Fig. 5 c have shown three kinds of sides of convex slope respectively, are suitable for the convex slope of the convex slope of two tracks, three tracks and the convex slope of four tracks respectively according to the present invention.

Fig. 6 a, Fig. 6 b, Fig. 6 c have shown the basic birds-eye view of the configuration of the track of advancing respectively, and Fig. 6 a is the stopper with two track structures, and Fig. 6 b is three tracks, and Fig. 6 c is four tracks.

Fig. 7 a, Fig. 7 b, Fig. 7 c have shown three successive views according to a convex slope height between two stoppers.

Fig. 8 a represents the view of the track of advancing of improved form.

Fig. 8 b represent to advance basic birds-eye view that structure is set of track and stopper, Fig. 8 a has three track structures.

The specific embodiment

Fig. 1 a and 1b represent the to advance lateral plan of stopper (1), Fig. 1 a is at the retardance state, and Fig. 1 b is in forward travel state.Described stopper (1) is made of slide block (10), and slide block (10) is in conjunction with a thrust jaw (11).Described slide block (10) centers on the described track of advancing (5) with described thrust Hubei Province (11).Described slide block (10) combines with thrust jaw (11) by a hinge cam (12) with two hinge axis, and an arm of hinge cam (12) is positioned at the afterbody of slide block (10), and another arm is positioned at the afterbody of thrust jaw (11).Around hinge cam (12) restoring spring (16) and one are set and separate lock dog (23), it will be in Fig. 2 more detailed description.According to the described state of separating lock dog (23), thrust jaw (11) is positioned at the retardance state described in Fig. 1 a and Fig. 2 a, and spring (16) elongation is simultaneously separated lock dog (23) and is in lower position; Fig. 1 b and Fig. 2 b are in released state, and spring (16) compression is simultaneously separated lock dog (23) and is in a high position, and under this state, described thrust jaw (11) releasing stops that to track thrust jaw (11) moves to slide block (10).Thrust jaw (11) is freely along the track of advancing (5) translation then.Stop that especially the thrust end (18) by thrust jaw (11) contacts or do not contact decision with the surface of the track of advancing (5).Described stopper (1) also comprises the appurtenances on its main body, a projection, and thrust plate supporting seat (17), they act on more detailed description among Fig. 7.

Fig. 2 a, Fig. 2 b have shown the front elevation of the actuating mechanism of stopper respectively, and Fig. 2 a is in the retardance state, and Fig. 2 b is in travel condition.The actuating mechanism of stopper comprises one and separates lock dog (23), and this separates lock dog (23) is an independently rigid rod, and it can slide in the hollow passageway (15) in the slide block (10), separates the below that lock dog is arranged at described thrust jaw (11) rear portion.Separate lock dog (23) and place on movement conversion plate (29) end face, the movement conversion plate converts the horizontal motion of convex slope (20) to separate lock dog (23) perpendicular movement.Change-over panel (29) is hinged on S. A. (24), and change-over panel (29) is fixed on the slide block (10).Change-over panel (29) in fact comprises a roller (21) that rotates freely around roll shaft (28), and roll shaft (28) is parallel with the S. A. (24) of change-over panel (29).Roller (21) is positioned on the track of convex slope (20), will further describe in Fig. 5 and Fig. 6, has shown the variable height of convex slope among the figure.In a certain position, convex slope (20) begins to make roller (21) to rise, and in the another location, convex slope (20) does not contact with roller (21), and the inclined-plane rests on lower position, and change-over panel under this position (29) is adjusted support part (104) to be stoped.The present invention is preferred, and described convex slope (20) is provided with roller (21), so that make friction force minimum and movement conversion, it is minimum and accurately to have a waste of power, separates lock dog (23) and promotes and offset with thrust jaw (11).

Fig. 3 represents the front elevation of elevator, and elevator comprises an elevator crib (32), makes passenger or goods be in the inside so that transport.Optimum transportation is the vertical face perpendicular movement along the inner space that is limited by the track of advancing (5).Elevator crib comprises the casing guide piece (45) with elevator crib (32) one, described casing guide piece is pipeline-like parts, and be positioned at and the plane of the axis normal of the track of advancing (5), with respect to the track of advancing (5), elevator crib (32) is in ad-hoc location.As preferably, shown in the top view of Fig. 6, elevator crib is inscribed within the zone that the track of advancing (5) limited.Fig. 8 has represented the concrete form of casing guide piece (45).Following at first setting of elevator crib (32) drives and safety device (31), and electric machine (30) is set then, and electric machine orders about and drives and safety device (31) motion.Essential characteristic of the present invention is that firm being connected in of the framework of elevator crib (32) advances on the framework (100), advances framework to cover electric machine (30) and driving and safety device (31).Like this, represented as Fig. 4, drive and the operation of safety device, cause that elevator crib (32) and base plate (44) thereof move, cause that equally electric machine follows above-mentioned parts together to advance.The power supply or the feed apparatus of electric machine (30) covering engine (41) and driving engine.Driving engine (41) drives axle drive shaft (40) and rotates, and axle drive shaft (40) is the longitudinal axis, and the end of axle drive shaft (40) is provided with the flat board (49) with convex slope.Fig. 6 has shown how the flat board (49) with convex slope rotates, and the edge with flat board of convex slope is provided with a convex slope (20) with several centimetres of thickness, and the height of convex slope (20) provides in Fig. 5.Convex slope (20) be arranged on slide block (10) roller (28) below, as shown in Figure 2.Therefore rotation with convex slope flat board (43) can cause that convex slope (20) rotates by actv. slide block (10) below, so realizes up or down stopping or remove according to such stopper (1) and stop.Stopper (1) center of circle with respect to flat board preferably is radial setting, so that a ridge (excrescence) is provided, specifies the circular path of thrust plate supporting seat (17) concentric with the circular path of convex slope (20).Each thrust plate supporting seat (17) connects the outer rim of thrust plate (43).Thrust plate (43) has the round-shaped of a disc format.In order to reinforce thrust plate, rib shape reinforced rib (42) is set below the thrust plate, improve the solidness of thrust plate (43).Center above the thrust plate (43) is provided with thrust universal-joint (51,52,53,54), the fixed end of thrust universal-joint intactly be arranged at elevator box plate (44) below.Thrust universal-joint (53,54,55) have two hinged, by a very crash-resistant solid axle (54) thrust plate is connected joint (55) and is connected to and is positioned at that the static housing plate of center connects on the joint below the elevator box plate (44).Therefore, the position that fine understanding, thrust plate connect joint (53) is removable, thrust plate connect joint (53) position mark the displacement at thrust plate (43) center, as shown in Figure 7, and by thrust plate (43) self displacement stress is delivered to universal-joint and elevator crib (32).Thrust universal-joint (53,54,55) has elastic surface and can rotate separately, transmits the hunting motion that normal thrust does not transmit thrust plate (43) simultaneously.According to the present invention, three kinds of section 5c of Fig. 5 a, 5b, expression convex slope are shown in Fig. 6 a, the convex slope (5) that is fit to two tracks shown in Fig. 6 b, is fit to the convex slope (5) of three tracks, shown in Fig. 6 c, be fit to the convex slope (5) of four tracks.Convex slope (20) has a starting altitude (HD) having on the flat board of convex slope (49), this is highly as far as possible little so that save the space.The height of the convex slope that Fig. 5 shows is the top view of convex slope as 360 degree circumference of functional description thrust plate (43) outer rim of angular coordinate.The height (H) of convex slope (20) has a maximum height difference (HR) between maximum bevel altitude and initial bevel altitude (HD).T diff-H (HR) expression elevator is in the increase of axle drive shaft (40) rotation back height.Convex slope has a linear side that increases on 0 ° of-180 ° of angle, is power at 180 °-360 ° then, and convex slope and the elevator with two tracks of advancing (5) are adapted.Convex slope has a linear side that increases on 0 °-hexagonal angle degree, is power at 120 °-360 ° then, and convex slope and the elevator with two tracks of advancing (5) are adapted.Convex slope has a linear side that increases on 0 ° of-90 ° of angle, is power at 90 °-360 ° then, and convex slope and the elevator with two tracks of advancing (5) are adapted.Advance on the path that is distributed in convex slope of track (5) by the certain angle rule.Like this, single stopper (1) is unlocked, just, the stopper that being positioned at the convex slope degree of dip increases under the position carries out the release action, shown in Fig. 1 b, and all the other all stoppers (1) are blocked, just, these stoppers that are blocked be positioned at convex slope (20) flat below.Fig. 5 c represents to have the profile of the convex slope of small dome (101), makes the stopper (1) of two 90 ° of settings of being separated by can change smoothly in release and between blocking, shown in Fig. 6 c.Therefore the continuous motion of translation of elevator box plate (44) makes the profile of this convex slope can transmit the isogonal straight-line motion of transmission shaft (40), by this progressive continuous linear progression, makes each stopper (1) alternately and continuously.Fig. 6 a, 6b and 6c have shown the birds-eye view that the position is set of track of advancing (5) and stopper (1), and Fig. 6 a is the structure of two tracks, and Fig. 6 b is the structure of three tracks, and Fig. 6 c is the structure of four tracks.Thrust plate (43) is circular, has the path of convex slope (20) in its periphery, and the section as Fig. 5 a, 5b and 5c demonstration is adopted according to 360 ° of peripheral paths in the cross section of convex slope.Shown permanent universal joint (53) in Fig. 6 a, it continues the vertical linear displacement component of thrust plate (43).Described thrust plate (43) has a movable parts equally, this movable parts is followed the motion of stopper and is moved, in Fig. 6 a, just a tilting member is according to the horizontal shaft consecutive periods swing perpendicular to the line between two stoppers, the continuous stopper that passes through two blockades of swing that carries out according to the upper limit mode of top S. A. (106), has a thrust plate among Fig. 6 b and Fig. 6 c, described thrust plate has been carried out improvement, its structure is identical with the structure of thrust plate among Fig. 6 a, in addition thrust plate be divided into two little thrust plates (43a, 43b).(43a is 43b) respectively by firm being connected on the thrust universal-joint (53,54,55) for two little thrust plates.Described two the little thrust plates in 90 ° of angles between two adjacent stoppers of two little thrust plate coverings rotate freely around the main S. A. (106) of thrust plate, thrust plate (42) is through each little thrust plate (42a, the angle of half between two stoppers 42b).This solution allows the first fixing little thrust plate (42b) to be connected with the Y direction of two constant resistance devices according to birds-eye view, and the little thrust plate of another activity has two stoppers, one in two stoppers is fixed, another can according to birds-eye view in identical direction (Y) move.This settling mode is to have the convex slope flat board obtains maximum mechanical function two blockades place support, simultaneously, if being had the casing of four tracks of advancing (5), the solution of Fig. 6 b adopts, be accompanied by stopping of three stoppers and moving of a stopper, this may produce braking or harmful friction, and described braking or harmful rubbing effect are on the flat board of a rigidity.This mode that a bit supports as spider is stable naturally, yet the chair with four legs is a rather unstable.Fig. 7 a, 7b and 7c represent the lateral plan of three continuous protruding bevel altitudes respectively, are the lateral plans according to Fig. 6 a, 6b and the represented AA ' of 6c three continuous protruding bevel altitudes between adjacent two stoppers that cut open figure.Fig. 7 has well shown how to rise, act on the thrust of convex slope (20) at slide block (10) rear portion of stopper (1a, 1b), promote slide block (10) release and upward movement, thereby the upward movement of slide block (10) acts on thrust plate supporting seat (17a), thrust plate supporting seat (17a) lifts thrust plate (43), and the action of thrust plate (43) causes the base plate (44) of elevator crib (32) to rise by universal-joint (53,54,55).Fig. 7 c has shown that first stopper (1a) enters the motion of blockage, and second stopper enters released state under this state, and convex slope height (HD) stops height under the propradation greater than second stopper (1b).For decline is very good understanding, and mechanical device is the same with the component of whole elevator, and mechanical device promotes downwards, and is accompanied by the decline of the convex slope (20) that is used to support stopper.Fig. 8 a represents the view of the track of advancing (5) of improved form.This track of advancing (5) is designed to be suitable for bearing friction stree, and the track of advancing (5) is split into two tracks, one is the track (5) of advancing, the track (5) of advancing works with stopper (1), and another is guide track (6), guide track (6) be centered around guide track (6) casing guide piece (45) on every side and work.This scheme allows friction means separately, so this will make the track of advancing (5) be subjected to the double brake of stopper (1).The track (5) of advancing directly be set in parallel in guide track (6) near.Described guide track (6) is integral by the screw configuration (80) and the orbit-shaped of advancing, screw disposes to be beneficial to makes one with two tracks of advancing (5) and two guide tracks (6), simultaneously they are split, and the track of advancing (5) replacing and the maintenance more frequent than guide track (6).Described casing guide piece (45) forms one with elevator crib (32) by screw device (81).Each guide track (6) of elevator crib has at least two casing guide piecees (45).Described casing guide piece (45) has channel architecture, and the inside of passage is provided with guide track (6).Fig. 8 b represents the basic view with three track structures overlooked above the track of advancing (5), stopper (1), guide track (6) and casing guide piece (45).Elevator crib is set in the zone that guide track (6) and the track of advancing (5) define.

Therefore the present invention relates to a kind of propelling and safety device that is used for elevator or elevator; comprise an elevator crib (32); described elevator crib is driven by an actuating device and safety device protection; be characterised in that; described elevator crib is along one group of track (5 of advancing; 6) advance; and guided by the casing guide piece; propelling and safety device are worked in framework (100); what described framework was firm is connected on the elevator crib (32); propulsive mechanism comprises one group of stopper of advancing (1); each track (5 of advancing; 6) go up the installation stopper of advancing (1); the launched machine (40 of the described stopper of advancing; 41) and distributing box (49; 20; 29; 23) release and promotion in succession; the described stopper of advancing (1) is started working under released state; by the total bracing or strutting arrangement (42 of all stoppers; 43) transmit displacement, described bracing or strutting arrangement (42; 43) make described elevator crib 32 along the described track (5 of advancing; 6) advance.

Therefore the present invention relates to a kind of propelling and safety device of elevator, it is characterized in that, distributing box (49,20,29,23) is the convex slope (20) with differing heights (H), and the rotation axis that convex slope (20) is arranged on the axle drive shaft (40) of engine installation (41) is on the circular outer perimeter in axle center.

Therefore the present invention relates to a kind of promotion and safety device of elevator, it is characterized in that convex slope path (20) take to spread on 360 ° of circumference, and its profile cooperates the layout of track (5,6) of advancing.

Therefore the present invention relates to a kind of propelling and safety device of elevator, it is characterized in that, at whole 360 ° of circumference, the side of convex slope comprises a simple continuous flat slope portion, flat slope portion heel is with a cumulative staight slope, and the length ratio of the peripheral lengths of flat slope portion and cumulative staight slope be equivalent to the to advance quantity of track (5) subtracts 1.

Therefore the present invention relates to a kind of propelling and safety device of elevator, it is characterized in that, bracing or strutting arrangement (42,43) is an independently bearing plate (43), described bearing plate (43) is arranged on the thrust plate supporting seat (17), and described thrust plate supporting seat (17) is arranged on stopper 1 top and the concentric circuit orbit of the circular trace of convex slope (20).

Therefore the present invention relates to a kind of elevator and advances and safety device, it is characterized in that, bearing plate (43) with its perpendicular movement component by universal-joint or connection turn (53,54,55) be sent on the elevator crib.

Therefore the present invention relates to a kind of propelling and safety device of elevator, the track (5,6) that it is characterized in that advancing is made up of at least two tracks, wherein a track is the track (5) of advancing, it acts on mutually with stopper (1), another track is guide track (6), its be centered around guide track (6) casing guide piece (45) on every side and act on mutually.

Therefore the present invention relates to a kind of propelling and safety device of elevator, it is characterized in that, the track (5) of advancing is parallel with guide track (6) and near setting, guide track (6) is linked to be an integral body with the track of advancing by screw device, therefore can separate maintenance to track of advancing (5) and guide track (6).

Therefore the present invention relates to a kind of propelling and safety device of elevator, it is characterized in that, the described stopper of advancing (1) comprises a slide block (10), this slide block (10) is in conjunction with a thrust jaw (11), slide block (10) and thrust jaw (11) are around advancing track (5), slide block (10) matches by a hinge cam (12) with thrust jaw (11), this hinge cam (12) has two hinges, one of them hinge is positioned at the rear portion of slide block (10) on the one hand, another is positioned at the rear portion of thrust jaw (11) on the other hand, retracing spring (16) is set around the described hinge cam (12) conciliates lock dog (23), separating lock dog (23) is driven by contacting with convex slope path (20), described convex slope path (20) be arranged at roller (21) below, roller (21) is installed on the mobile change-over panel (29), and mobile change-over panel 29 drives to be separated in the lock dog immigration passage (14).

Claims

1; a kind of propelling and safety device that is used for elevator or elevator; comprise an elevator crib (32); described elevator crib (32) is driven by an actuating device and safety device protection; be characterised in that; described elevator crib is along one group of track (5 of advancing; 6) advance; and guided by the casing guide piece; propelling and safety device are worked in framework (100); what described framework was firm is connected on the elevator crib (32); propulsive mechanism comprises one group of stopper of advancing (1); each track (5 of advancing; 6) go up the installation stopper of advancing (1); the launched machine (40 of the described stopper of advancing; 41) and distributing box (49; 20; 29; 23) release and promotion in succession; the described stopper of advancing (1) is started working under released state; by the total bracing or strutting arrangement (42 of all stoppers; 43) transmit displacement, described bracing or strutting arrangement (42; 43) make described elevator crib 32 along the described track (5 of advancing; 6) advance.

2, the propelling of elevator according to claim 1 and safety device, it is characterized in that, described distributing box (49,20,29,23) is the convex slope (20) with differing heights (H), and the rotation axis that described convex slope (20) is arranged on the axle drive shaft (40) of engine installation (41) is on the circular outer perimeter in axle center.

3, the propelling of elevator according to claim 2 and safety device is characterized in that, described convex slope path (20) takes to spread on 360 ° of circumference, and its profile cooperates the layout of track (5,6) of advancing.

4, the propelling of elevator according to claim 3 and safety device, it is characterized in that, at whole 360 ° of circumference, the side of described convex slope comprises a simple continuous flat slope portion, flat slope portion heel is with a cumulative staight slope, and the length ratio of the peripheral lengths of flat slope portion and cumulative staight slope be equivalent to the to advance quantity of track (5) subtracts 1.

5, the propelling of elevator according to claim 2 and safety device, it is characterized in that, bracing or strutting arrangement (42,43) is an independently bearing plate (43), described bearing plate (43) is arranged on the thrust plate supporting seat (17), and described thrust plate supporting seat (17) is arranged on stopper 1 top and the concentric circuit orbit of the circular trace of convex slope (20).

6, the propelling of elevator according to claim 5 and safety device is characterized in that, described bearing plate (43) with its perpendicular movement component by universal-joint or connection turn (53,54,55) be sent on the elevator crib.

7, the propelling of elevator according to claim 1 and safety device, it is characterized in that, the described track of advancing (5,6) is made up of at least two tracks, wherein a track is the track (5) of advancing, it acts on mutually with stopper (1), another track is guide track (6), its be centered around guide track (6) casing guide piece (45) on every side and act on mutually.

8, the propelling of elevator according to claim 7 and safety device, it is characterized in that, the described track of advancing (5) is parallel with described guide track (6) and near setting, guide track (6) is linked to be an integral body with the track of advancing by screw device, therefore can separate maintenance to track of advancing (5) and guide track (6).

9, the propelling of elevator according to claim 1 and safety device, it is characterized in that, the described stopper of advancing (1) comprises a slide block (10), this slide block (10) is in conjunction with a thrust jaw (11), slide block (10) and thrust jaw (11) are around advancing track (5), slide block (10) matches by a hinge cam (12) with thrust jaw (11), this hinge cam (12) has two hinges, one of them hinge is positioned at the rear portion of slide block (10) on the one hand, another is positioned at the rear portion of thrust jaw (11) on the other hand, retracing spring (16) is set around the described hinge cam (12) conciliates lock dog (23).

10, according to the propelling and the safety device of claim 2 and 9 described elevators, it is characterized in that, the described lock dog (23) of separating is driven by contacting with convex slope path (20), convex slope path (20) be arranged at roller (21) below, roller (21) is installed on the mobile change-over panel (29), and mobile change-over panel 29 drives to be separated in the lock dog immigration passage (14).