CN113830645B

CN113830645B - Operating system for a multi-car elevator

Info

Publication number: CN113830645B
Application number: CN202010512931.5A
Authority: CN
Inventors: 毛凯萍; 周立波
Original assignee: Hunan Daju Information Technology Co ltd
Current assignee: Hunan Daju Information Technology Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2023-08-04
Anticipated expiration: 2040-06-08
Also published as: CN113830645A

Abstract

The invention discloses a running system for a multi-car elevator, which is provided with at least one car, wherein the running system is provided with a main track mechanism and at least one switching mechanism, the main track mechanism is provided with at least two main tracks, the switching mechanism is provided with a switching track, the car is switched to different main tracks through the switching track, the main track and the switching track form a running channel of the car, when the car is switched to different main tracks, the switching track is connected with the main track, and when the car is not switched to the main track, the switching track is not connected with the main track. The running system for the multi-car elevator solves the problem that a conventional car can only run on one track, so that the flexible lane change of simultaneous load running of a plurality of cars on two tracks is realized, and the running efficiency of the elevator is greatly improved.

Description

Operating system for a multi-car elevator

Technical Field

The invention relates to the technical field of elevators, in particular to a running system for a multi-car elevator.

Background

In modern society and economic activities, elevators have become indispensable vertical transportation means for carrying people or things, and according to statistics, the annual average increase rate of the elevator quantity demand in China is more than 20%, china has become the largest elevator market worldwide, but in terms of market share, about 70% of domestic market share is occupied by foreign brands such as Austenite, xueda, tong, disenkeprimary, mitsubishi and Hitachi, and national brands occupy only a very small part of the brands. The national brands of elevators are greatly behind developed countries in the aspects of technical level, after-sales service and the like, and foreign manufacturers block some key technologies, so that the development of the elevator industry in China is difficult to hold. The innovation capability of the technical level of the elevator industry is enhanced, the technical monopoly of foreign manufacturers is broken, and the improvement of the market share of national brands of elevators is a current problem to be solved.

At present, the elevator car is widely operated in a mode of traction driving by a steel wire rope, only one car can be arranged in one hoistway, and the elevator in a single car operation mode can still meet the use requirements in low-rise buildings and occasions with low traffic, but the defects of long waiting time and low conveying efficiency in high-rise buildings or super high-rise buildings with high population density are remarkably amplified. If the elevator shaft and the corresponding elevator car are increased, the building space is occupied greatly, the cost is also increased obviously, and the problem of low elevator conveying efficiency still exists.

Along with the continuous development of engineering technology level, the mode of multi-car operation such as double-deck car elevator, double-car elevator, ring-shaped or bifurcation ring-shaped elevator has appeared gradually, but the elevator car of these multi-car elevator operation modes of known all is located on the track in same well, and the elevator car between each well can't carry out track switching operation, more can't carry out the overrun operation between the car, under the circumstances of traffic surge, adopts present multi-car operation mode, has not only reduced the space utilization of building by a wide margin, does not have the problem of the low efficiency of elevator transportation of fundamental solution moreover.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: aiming at the technical problems existing in the prior art, the invention provides a running system for a multi-car elevator, which solves the problem that a conventional car can only run on one track, thereby realizing flexible lane changing of simultaneous load running of a plurality of cars on two tracks and greatly improving the running efficiency of the elevator.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

a operating system for many cars elevator, many cars elevator is equipped with at least one car, operating system is equipped with main track mechanism and at least one switching mechanism, main track mechanism is equipped with two at least main tracks, switching mechanism is equipped with the switching track, the car switches in different main tracks through the switching track, main track and switching track form the travel path of car, when the car switches in different main tracks, the switching track links up with the main track, when the car does not switch main track operation, the switching track is not connected with the main track.

The technical scheme is further improved as follows:

preferably, in the above technical solution, the main track is provided with a plurality of movable parts, the movable parts leave or are connected with the main track through a driving assembly, and the switching track is connected with or disconnected from the main track through a driving assembly.

Preferably, in the above technical solution, each main rail includes a fixed portion and a movable portion, the fixed portion is provided with a plurality of rail changing positions, and the movable portion is provided with the rail changing positions.

Preferably, in the above technical solution, the fixed portion is connected with the switching track when the car is switched to a different main track, and the fixed portion is connected with the movable portion when the car is not switched to the main track.

Preferably, in the above technical solution, the switching mechanism is provided with a driving assembly, the switching rail includes a connection rail and a transition rail, and the transition rail is connected with or disconnected from the main rail through the driving assembly; when the car is switched to different main tracks, the connecting track is connected with the transition track.

Preferably, in the above technical solution, at least two transition rails are provided, one transition rail is matched with one main rail, and two transition rails are respectively provided at two ends of the connecting rail.

Preferably, in the above technical scheme, the switching mechanism is further provided with a mounting platform, the transition track and the movable part are mounted on the mounting platform, and the mounting platform is driven to move by the driving assembly.

Preferably, in the above technical solution, the driving assembly includes a driving member and a push-pull device, and the driving member drives the mounting platform to move through the push-pull device.

Preferably, in the above technical scheme, the switching mechanism is further provided with a buffer assembly, the buffer assembly comprises a connecting shaft, an elastic piece and a sleeve, one end of the connecting shaft is fixedly connected with the push-pull device, the sleeve is sleeved outside the connecting shaft, and the elastic piece is sleeved outside the connecting shaft.

Preferably, in the above technical scheme, the switching mechanism is further provided with a limiting assembly, the limiting assembly comprises a guide piece and a guide module, the guide module is mounted on the mounting platform, the guide module moves on the guide piece, and the driving piece drives the mounting platform to move along the length direction of the guide piece through the guide module.

Preferably, in the above technical scheme, the guide module is equipped with carrier wheel, leading wheel and mount pad, carrier wheel and leading wheel are installed on the mount pad, the carrier wheel rolls in the guide, the leading wheel is smooth to be located on the guide, mounting platform and mount pad fixed connection.

Preferably, in the above technical solution, the guide member is provided with a limiting groove, and the guide wheel and the bearing wheel move in the limiting groove.

Preferably, in the above technical solution, the limiting assembly is provided with at least two sets, which are respectively located at two sides of the driving assembly.

Preferably, in the above technical scheme, the switching mechanism is further provided with a self-locking assembly, the self-locking assembly comprises a starting part, a locking part and a power part, and the self-locking assembly is provided with a wedge block. The power part is connected with the driving part, the driving part drives the starting part to move, and the starting part drives the locking part to lock the wedge block or release the wedge block.

Preferably, in the above technical solution, the starting portion is provided with an idler wheel, the power portion is provided with a push-pull device, the push-pull device is connected with a driving piece, and the driving piece drives the push-pull device to move so as to leave the idler wheel or drive the idler wheel to move.

Preferably, in the above technical solution, the end portion of the push-pull device is provided with a special-shaped block.

Preferably, in the above technical scheme, the locking part comprises a reset piece, a self-locking piece and a locking block, the starting part is further provided with a pull rod, the idler wheel is installed on the pull rod, the self-locking piece is hinged with the pull rod, the self-locking piece and the locking block form a groove for clamping the wedge block, and the reset piece is elastically connected with the self-locking piece.

Preferably, in the above technical scheme, one end of the self-locking member is provided with a clamping tongue, and the other end is hinged with the pull rod.

Preferably, in the above technical solution, the wedge-shaped block is provided with a wedge-shaped end which is clamped with the clamping tongue in a matching manner.

Preferably, in the above technical solution, at least two wedge blocks are provided and located at different sides of the mounting platform.

Preferably, in the above technical solution, at least two locking portions are provided, and each locking portion corresponds to one wedge block.

Preferably, in the above technical solution, the self-locking assembly is provided with two groups, which are respectively located at two sides of the moving direction of the mounting platform.

Compared with the prior art, the running system for the multi-car elevator has the following advantages:

(1) The running system for the multi-car elevator changes the running track of the car through the switching mechanism, so that two running tracks can run a plurality of cars at the same time, and the cars can pass through each other, and the problem that one conventional car can only run on one running track is solved.

(2) The running system for the multi-car elevator has reasonable layout, small occupied building space, flexible layout of the track modules and high flexibility degree, and can be additionally provided with a plurality of sets of switching mechanisms between adjacent tracks according to the needs.

(3) The running system for the multi-car elevator finishes a series of actions such as rail switching, positioning during switching, self-locking and the like through one driving piece, and has high energy utilization rate.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of the switching mechanism of the present invention.

Fig. 3 is a schematic driving diagram of the switching mechanism of the present invention.

Fig. 4 is a schematic view of the track switching structure of the present invention.

Fig. 5 is a schematic view of the track of the present invention in a reset configuration.

Fig. 6 (a) is a schematic diagram of the present invention before the cars switch tracks when operating in multiple cars.

Fig. 6 (b) is a schematic diagram of the present invention when the cars switch tracks during multi-car operation.

Fig. 7 is a schematic view of the structure of the guide module of the present invention.

Fig. 8 is a schematic view of the mating of the guide module and guide of the present invention.

Fig. 9 is a schematic view of section C-C of fig. 7.

FIG. 10 is a schematic diagram illustrating the connection of the stopper according to the present invention.

The reference numerals in the figures illustrate:

1. a first track; 1-1, a front car; 1-2, rear car; 2. a second track; 3. a movable part; 4. a transition track; 5. a connecting rail; 6. a drive assembly; 6-1, an electric cylinder; 6-2, a buffer assembly; 6-2-1, connecting plates; 6-2-2, sleeve; 6-2-3, an elastic piece; 6-2-4, connecting shaft; 6-3, a push-pull device; 7. a self-locking assembly; 7-1, a resetting piece; 7-2, a pull rod; 7-3, idler wheels; 7-4, a bearing groove; 7-5, a clamping tongue; 7-6, wedge blocks; 7-7, locking blocks; 8. a guide module; 8-1, a bearing wheel; 8-2 guide wheels; 9. a mounting platform; 9-1, limiting blocks; 10. a fixed bracket; 11. a guide.

Detailed Description

The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.

Fig. 1 to 10 show an embodiment of the running system according to the invention for a multi-car elevator provided with at least one car, which running system is provided with a main rail mechanism provided with at least two main rails and with at least one switching mechanism provided with a switching rail, by means of which the car is switched to different main rails, which main rails and switching rail form a running channel for the car, which switching rail is engaged with the main rail when the car is switched to different main rails, and which switching rail is not connected to the main rail when the car is not operating with a switching main rail.

Two main rails are taken as an example to illustrate the specific structure and implementation principle of the invention. The manner of operation of the cars and the location of the switching mechanism in the overall elevator installation can be found in the intelligent elevator/multi-car elevator installation-related patents which have been disclosed or granted by the applicant.

In this embodiment, two main tracks are provided, namely, a first track 1 and a second track 2, and the first track 1 and the second track 2 are respectively disposed in different shafts. The switching mechanism comprises a switching track, a mounting platform 9 and a driving assembly 6, wherein the mounting platform 9 and the driving assembly 6 are provided with two.

The main track includes fixed part and movable part 3, and fixed part is fixed in on the wall of well, the fixed part is equipped with a plurality of rail replacement positions, the movable part 3 is located the rail replacement position. The switching track comprises a connecting track 5 and two transition tracks 4, the connecting track 5 is fixed on the wall of a well, the transition tracks 4 and the movable part 3 are fixed on a mounting platform 9, one transition track 4 and the movable part 3 are fixedly mounted on the mounting platform 9, and the mounting platform 9 is driven to translate through a driving component 6. When the car is switched to different main tracks, the movable part 3 is disconnected with the fixed part, the fixed part is connected with one end of the transition track 4, and the other end of the transition track 4 is connected with one end of the connecting track 5; two ends of the connecting track 5 are respectively connected with the two transition tracks 4; when the car runs on a non-switching main rail, the fixed part is connected with the movable part 3. The cross-sectional shape of the movable part 3 is the same as that of the transition track 4. The transition track 4 is arc-shaped, and the arc-shaped radius is designed according to the minimum allowable radius for car turning.

In this embodiment, the switching mechanism is provided with a fixing bracket 10, and the fixing bracket 10 is mounted and fixed on a wall. The rest of the structure is mounted to a fixed bracket 10, except for the mounting platform 9 and the switch rail.

In this embodiment, the driving assembly 6 includes a driving member and a push-pull device, and the driving member drives the mounting platform 9 to move through the push-pull device. The driving part is fixed on the fixed bracket 10 by adopting an electric cylinder 6-1. The mounting platform 9 adopts a stress bracket structure form, so that the rigidity of the mounting platform is ensured.

In this embodiment, the switching mechanism is further provided with a buffer assembly 6-2, the buffer assembly 6-2 comprises a connecting shaft 6-2-4, an elastic piece and a sleeve 6-2-2, the elastic piece 6-2-3 adopts a spring, one end of the connecting shaft 6-2-4 is fixedly connected with the push-pull device, the sleeve 6-2-2 is sleeved outside the connecting shaft 6-2-4, the spring is sleeved outside the connecting shaft 6-2-4, and two springs are arranged and are respectively located on two sides of the sleeve 6-2-2. The spring jacket is provided with an outer cylinder. The push-pull device at the driving end of the electric cylinder 6-1 is connected with the mounting platform 9 by adopting the flexible buffer assembly 6-2, so that the impact damage to the driving assembly 6 caused by the inertial force generated by the rapid start and stop of the mounting platform 9 is avoided. The maximum buffer relative displacement is the sum of the distance between the end face of the left outer cylinder and the connecting plate 6-2-1 and the distance between the end face of the left outer cylinder and the end face of the connecting shaft 6-2-4.

In this embodiment, the switching mechanism is still equipped with spacing subassembly, spacing subassembly includes guide 11 and direction module 8, direction module 8 is installed in mounting platform 9, direction module 8 removes in guide 11, driving piece drive mounting platform 9 moves along guide 11 length direction through direction module 8. The guide pieces 11 are arranged at two sides of the electric cylinder 6-1, the guide modules 8 are arranged at four sides, and the guide pieces are arranged at four corners of the mounting platform 9.

In this embodiment, the guide module 8 is provided with a bearing wheel 8-1, a guide wheel 8-2 and a mounting seat, the bearing wheel 8-1 and the guide wheel 8-2 are mounted on the mounting seat, the guide piece 11 adopts channel steel, and the guide wheel 8-2 is provided with two guide wheels. The bearing wheels 8-1 roll in the groove of the channel steel, the two guide wheels 8-2 are arranged in the channel steel in a sliding mode, the two guide wheels 8-2 are arranged in a staggered mode and respectively contact with two side faces of the channel steel, the bearing wheels 8-1 and the guide wheels 8-2 are respectively in contact with three faces of the channel steel, and the mounting platform 9 is fixedly connected with the mounting seat. The left and right 4 groups of limiting components realize 5 degrees of freedom constraint except lateral movement. The guide piece 11 is provided with a limit groove, the guide wheel 8-2 and the bearing wheel 8-1 move in the limit groove, the constraint of the transition track 4 in the directions of 5 degrees of freedom except horizontal transverse movement is realized, and the transition track 4 is ensured to be accurately connected with the fixing part of the main track.

In this embodiment, the switching mechanism is further provided with a self-locking assembly 7, and the self-locking assembly 7 is provided with two groups, which are respectively located at two sides of the moving direction of the mounting platform 9.

The self-locking assembly 7 comprises a starting part, a locking part and a power part. The locking part of each self-locking assembly 7 is provided with two. The power part is connected with the driving part, the driving part drives the starting part to move, and the starting part drives the locking part to lock the wedge-shaped block 7-6 or loosen the wedge-shaped block 7-6. The self-locking assembly 7 forms a mechanical terminal self-locking opening and closing mechanism, the mechanism is in a mechanical self-locking state when not triggered, the track is kept stable, and when the transition track 4 needs to move, the locking part can be automatically opened before the transition track 4, and no additional power source or control module is needed.

In this embodiment, the starting part is provided with an idler wheel 7-3 and a pull rod 7-2, the power part is provided with a push-pull device, one end of the connecting shaft 6-2-4, which is not connected with the push-pull device, is provided with a connecting plate 6-2-1, and the connecting plate 6-2-1 is fixedly connected with the connecting shaft 6-2-4 through a bolt. The connecting plate 6-2-1 is provided with holes, and the connecting plate 6-2-1 is sleeved outside the push-pull device and fixedly connected with the push-pull device. The two end parts of the push-pull device are respectively provided with a special-shaped block, the opposite-shaped block is a wedge-shaped shifting head, and the idler wheel 7-3 is arranged on a rod which is vertically fixed with the pull rod 7-2. When the electric cylinder 6-1 drives the push-pull device 6-3 to move and the wedge-shaped shifting head is clamped into the idler wheel 7-3 or leaves the idler wheel 7-3, the wedge-shaped surface contacts with the idler wheel 7-3 to generate vertical component force, so that the idler wheel 7-3 is pushed to move downwards, and the pull rod 7-2 is driven to rotate.

In this embodiment, the locking part includes a reset element 7-1, a self-locking element and a locking block 7-7, the self-locking element is a self-locking rod, one end of the self-locking rod is hinged with the pull rod 7-2, the other end is provided with a clamping tongue 7-5, and the clamping tongue 7-5 is provided with a hook end. The middle section of the self-locking rod is hinged with the locking block 7-7, and the locking block 7-7 is fixed in the fixed bracket 10. The self-locking piece and the locking block 7-7 form a groove cavity of the clamping wedge-shaped block 7-6, the reset piece 7-1 adopts a spring, one end of the spring is fixed on the fixed bracket 10, and the other end of the spring is elastically connected with the self-locking rod. The wedge-shaped block 7-6 is provided with a wedge-shaped end which is matched and clamped with the clamping tongue 7-5. When the wedge-shaped shifting head is clamped into the idler pulley 7-3, the pull rod 7-2 is pushed to counteract the tensile force of the spring of the reset piece 7-1, the pull rod 7-2 is driven to rotate, when the pull rod 7-2 rotates, the self-locking piece rotates anticlockwise, a groove cavity formed by the self-locking piece and the locking piece 7-7 is enlarged, the clamping tongue 7-5 is clamped into the groove cavity, after the wedge-shaped shifting head is clamped into the idler pulley 7-3, the pull rod 7-2 and the self-locking rod are reset, and the wedge-shaped piece 7-6 is locked by the self-locking rod. When the propeller moves in the opposite direction, the wedge-shaped shifting head is separated from the idler wheel 7-3, the self-locking piece rotates anticlockwise, a groove cavity formed by the self-locking piece and the locking block 7-7 is enlarged, and the clamping tongue 7-5 is separated from the groove cavity.

In this embodiment, the mounting platform 9 is provided with four limiting blocks 9-1, the limiting blocks 9-1 are fixed at the bottom of the mounting platform 9, the fixing bracket 10 is provided with corresponding bearing grooves 7-4, and the upper end surface of the bearing groove 7-4 on the lower end surface of the limiting block 9-1 is a wedge-shaped matching surface. As shown in fig. 6, when the mounting platform 9 moves to the end point, the stopper 9-1 cooperates with the bearing groove 7-4 to perform alignment adjustment until the mounting platform 9 stops to finish accurate alignment.

In this embodiment, the electric cylinder 6-1 is also a driving source for opening and closing the self-locking assembly 7 at the stroke end, so the buffer assembly 6-2 is a key component for realizing the difference between the opening and closing of the self-locking assembly 7 and the driving time of the mounting platform 9, so that the system can realize the start and stop actions of the self-locking assembly 7 before the mounting platform 9.

When the operation system of the embodiment is applied and implemented, the working principle is as follows:

as shown in fig. 6 (a) and 6 (b), the elevator is provided with a plurality of cabs, the first track 1 and the second track 2 are straight running tracks for the elevator cabs to normally run upwards or downwards, when the rear cabs 1-2 on the first track 1 are blocked by the front cabs 1-1, the control system of the elevator sends an action command to the switching mechanism, the electric cylinder 6-1 starts to act, the self-locking assembly 7 is opened through the mechanical linkage of the push-pull device 6-3, then the end face of the connecting shaft 6-2-4 in the buffer assembly 6-2 starts to act on the mounting platform 9, the mounting platform 9 moves along the guide piece 11 through the bearing wheels 8-1 and the guide wheels 8-2, so that the movable part 3 moves out of the rail changing position, and meanwhile, the transition track 4 runs towards the rail position. When the station is about to enter, 4 limiting blocks 9-1 on the mounting platform 9 start to be wedged with the bearing grooves 7-4 on the fixing support 10, the fixing part and the transition track 4 are accurately aligned, the wedge blocks 7-6 are locked with the clamping tongues 7-5, and the first track 1 and the second track 2 are respectively connected with the corresponding transition track 4. The car travels through the transition track 4 to the second track 2. When the car 1-2 finishes the rail replacement, the system sends out a rail reset instruction, and the switching mechanism starts to do reverse motion, and the principle is the same as that described above.

The foregoing is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. While the invention has been described with reference to preferred embodiments, it is not intended to be limiting. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention shall fall within the scope of the technical solution of the present invention.

Claims

1. The running system for the multi-car elevator is provided with at least one car and is characterized in that the running system is provided with a main track mechanism and at least one switching mechanism, the main track mechanism is provided with at least two main tracks, the switching mechanism is provided with switching tracks, the cars are switched to different main tracks through the switching tracks, the main tracks and the switching tracks form running channels of the cars, when the cars are switched to different main tracks, the switching tracks are connected with the main tracks, and when the cars are not switched to the main tracks, the switching tracks are not connected with the main tracks;

the main track is provided with a plurality of movable parts (3), the movable parts (3) are separated from or connected with the main track through a driving component (6), and the switching track is connected with or disconnected from the main track through the driving component (6); each main track comprises a fixed part and a movable part (3), the fixed part is provided with a plurality of track changing positions, and the movable parts (3) are arranged on the track changing positions; when the car is switched to different main tracks, the fixed part is connected with the switching track, and when the car is not switched to the main track, the fixed part is connected with the movable part (3); the switching mechanism is provided with a driving assembly (6), the switching track comprises a connecting track (5) and a transition track (4), and the transition track (4) is connected with the main track or disconnected with the main track through the driving assembly (6); when the lift car is switched to different main tracks, the connecting track (5) is connected with the transition track (4); at least two transition rails (4) are arranged, one transition rail (4) is matched with one main rail, and two transition rails (4) are respectively arranged at two ends of the connecting rail (5); the switching mechanism is also provided with a mounting platform (9), the transition track (4) and the movable part (3) are mounted on the mounting platform (9), and the mounting platform (9) is driven to move through a driving assembly (6); the driving assembly (6) comprises a driving piece and a push-pull device, and the driving piece drives the mounting platform (9) to move through the push-pull device; the switching mechanism is further provided with a limiting assembly, the limiting assembly comprises a guide piece (11) and a guide module (8), the guide module (8) is installed on the installation platform (9), the guide module (8) moves on the guide piece (11), and the driving piece drives the installation platform (9) to move along the length direction of the guide piece (11) through the guide module (8).

2. The running system for the multi-car elevator according to claim 1, wherein the switching mechanism is further provided with a buffer assembly (6-2), the buffer assembly (6-2) comprises a connecting shaft (6-2-4), an elastic piece (6-2-3) and a sleeve (6-2-2), one end of the connecting shaft (6-2-4) is fixedly connected with the push-pull device, the sleeve (6-2-2) is sleeved outside the connecting shaft (6-2-4), and the elastic piece (6-2-3) is sleeved outside the connecting shaft (6-2-4).

3. The running system for a multi-car elevator according to claim 1, characterized in that the guide module (8) is provided with a bearing wheel (8-1), a guide wheel (8-2) and a mounting seat, the bearing wheel (8-1) and the guide wheel (8-2) are mounted on the mounting seat, the bearing wheel (8-1) rolls on the guide piece (11), the guide wheel (8-2) is slidingly arranged on the guide piece (11), and the mounting platform (9) is fixedly connected with the mounting seat.

4. A running system for a multi-car elevator according to claim 3, characterized in that the guide (11) is provided with a limit groove in which the guide wheel (8-2) and the carrier wheel (8-1) move.

5. A running system for a multi-car elevator according to claim 2, characterized in that the limit assembly is provided with at least two sets, one on each side of the drive assembly (6).

6. The operating system for a multi-car elevator according to claim 2, characterized in that the switching mechanism is further provided with a self-locking assembly (7), the self-locking assembly (7) comprising a start-up part, a locking part and a power part, the self-locking assembly (7) being provided with wedges (7-6); the power part is connected with the driving part, the driving part drives the starting part to move, and the starting part drives the locking part to lock the wedge block (7-6) or unlock the wedge block (7-6).

7. The operating system for a multi-car elevator according to claim 6, characterized in that the starting part is provided with an idler (7-3), the power part is provided with a push-pull, the push-pull (6-3) is connected with a driving member, and the driving member drives the push-pull (6-3) to move so as to leave the idler (7-3) or drive the idler (7-3) to move.

8. The operating system for a multi-car elevator according to claim 7, wherein the end of the push-pull is provided with a profiled block.

9. The running system for the multi-car elevator according to claim 7, wherein the locking part comprises a reset piece (7-1), a self-locking piece and a locking block (7-7), the starting part is further provided with a pull rod (7-2), the idler wheel (7-3) is installed on the pull rod (7-2), the self-locking piece is hinged with the pull rod (7-2), the self-locking piece and the locking block (7-7) form a groove for clamping the wedge block (7-6), and the reset piece (7-1) is elastically connected with the self-locking piece.

10. The operating system for a multi-car elevator according to claim 9, characterized in that the self-locking element is provided with a catch (7-5) at one end and is hinged to the pull rod (7-2) at the other end.

11. The operating system for a multi-car elevator according to claim 10, characterized in that the wedge block (7-6) is provided with a wedge end that engages with the catch (7-5).

12. The operating system for a multi-car elevator according to claim 8, characterized in that at least two wedge blocks (7-6) are provided, located on different sides of the mounting platform (9).

13. The operating system for a multi-car elevator according to claim 6, characterized in that the locking parts are provided with at least two, one wedge (7-6) for each locking part.

14. The operating system for a multi-car elevator according to claim 6, characterized in that the self-locking assembly (7) is provided with two groups, one on each side of the direction of movement of the mounting platform (9).