CN114620401A

CN114620401A - Integrated intelligent warehouse

Info

Publication number: CN114620401A
Application number: CN202210160460.5A
Authority: CN
Inventors: 徐立
Original assignee: Suzhou Iron Technology Co Ltd
Current assignee: Suzhou Iron Technology Co Ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-06-14

Abstract

The application discloses integration intelligent storehouse includes: a magazine body having a plurality of layers and provided with a rack for storing medicine boxes; the high-rise logistics lifting mechanism comprises a first picking and delivering assembly and a lifting assembly connected with the first picking and delivering assembly, wherein the first picking and delivering assembly is configured to drive the medicine chest to input or output the goods shelf, and the lifting assembly is configured to drive the first picking and delivering assembly to and fro between floors of the warehouse body; and the automatic box outlet and inlet mechanism is positioned at the bottom layer of the warehouse body, the automatic box outlet and inlet mechanism comprises a conveying line and a second taking and conveying assembly, the conveying line is configured to input or output the medicine boxes into or out of the warehouse body, and the second taking and conveying assembly is used for receiving the first taking and conveying assembly and the conveying line so as to input the medicine boxes on the conveying line into the first taking and conveying assembly or input the medicine boxes on the first taking and conveying assembly into the conveying line. The multi-layer structure type automatic medicine box taking and placing device can achieve automatic medicine box taking and placing of a multi-layer structure type warehouse body, avoids manual going up and down stairs to convey medicine boxes, effectively reduces labor intensity, and improves medicine taking and placing efficiency.

Description

Integrated intelligent warehouse

Technical Field

The application relates to the technical field of medicine storage, in particular to an integrated intelligent warehouse.

Background

In hospitals, intelligent stores are often employed to store drugs. In the prior art, in order to supplement and take out a medicine, an intelligent library is generally of a single-layer structure. Because the intelligent storehouse space utilization of single-layer structure is low, consequently partial intelligent storehouse adopts multilayer structure to hold more medicines. However, adopt multilayer structure's intelligent storehouse, get when putting when needs get the medicine on upper strata, the staff need go up and down stairs and carry, and the working process is very inconvenient, has greatly reduced work efficiency.

Disclosure of Invention

Aiming at the defects in the technology, the application provides an integrated intelligent warehouse which can automatically perform medicine supplement and medicine box recovery on a warehouse body with a multilayer structure.

In order to solve the technical problem, the technical scheme adopted by the application is as follows: an integrated intelligent library comprising: a storage body having a plurality of layers and provided with a shelf for storing medicine boxes; the high-rise logistics lifting mechanism comprises a first picking assembly and a lifting assembly connected with the first picking assembly, the first picking assembly is configured to drive the medicine boxes to input or output the goods shelves, and the lifting assembly is configured to drive the first picking assembly to reciprocate between floors of the warehouse body; and the automatic box feeding and discharging mechanism is positioned at the bottom layer of the storehouse body and comprises a conveying line and a second fetching and conveying assembly, the conveying line is configured to input or output the medicine boxes into or out of the storehouse body, and the second fetching and conveying assembly is used for receiving the first fetching and conveying assembly and the conveying line so as to input the medicine boxes on the conveying line into the first fetching and conveying assembly or input the medicine boxes on the first fetching and conveying assembly into the conveying line.

Further, the first taking and delivering assembly comprises a first conveying line body for supporting the medicine box, and the first conveying line body comprises a first synchronous belt and a first driving motor for driving the first synchronous belt to rotate.

Furthermore, the lifting assembly comprises a lifting frame and a lifting platform for supporting the first taking and delivering assembly, the lifting platform is connected with the lifting frame in a sliding mode, and the lifting platform can be lifted along the lifting frame actively.

Further, the lifting assembly comprises a lifting device for driving the lifting platform to lift, the lifting device comprises a lifting chain arranged on the lifting frame and a chain wheel assembly arranged on the lifting platform and connected with the lifting chain in a transmission mode, and the chain wheel assembly can drive the lifting platform to move along the lifting chain.

Furthermore, the number of the lifting platforms is multiple, each lifting platform is provided with the first taking and delivering assembly, and the number of the second taking and delivering assemblies is multiple and corresponds to that of the first taking and delivering assemblies.

Further, the second picking and delivering assembly comprises a second conveying line body for conveying the medicine boxes, and the second conveying line body can ascend and descend relative to the conveying line so as to support the medicine boxes on the conveying line or place the medicine boxes into the conveying line.

Further, the conveying line comprises a plurality of rollers which are arranged side by side at intervals and used for conveying the medicine boxes, and the second conveying line body is located between the rollers.

Furthermore, the second taking and delivering assembly further comprises a lifting frame and a driving assembly, wherein the lifting frame is arranged below the second conveying line body and used for supporting the second conveying line body, the driving assembly is in transmission connection with the lifting frame, and the driving assembly can drive the lifting frame and the second conveying line body to lift.

Further, the crane comprises a mounting plate, a plurality of guide posts movably arranged on the mounting plate in a penetrating mode in the vertical direction and a lifting plate connected to the upper ends of the guide posts, and the second conveying line body is arranged on the lifting plate.

Further, drive assembly is including setting up third driving motor and eccentric cover on the mounting panel are established the eccentric wheel of third driving motor output, the lifter plate is located eccentric wheel below and rather than contacting, third driving motor can drive the eccentric wheel rotates, in order to drive the lifter plate goes up and down.

Compared with the prior art, the application has the beneficial effects that: according to the invention, the high-rise logistics lifting mechanism is matched with the automatic in-out box mechanism, so that the automatic taking and placing of the medicine boxes in the multi-layer structure type storehouse body can be realized, manual going up and down stairs for conveying the medicine boxes are avoided, the labor intensity is effectively reduced, and the medicine taking and placing efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:

FIG. 1 is a schematic diagram of the overall structure of the intelligent library of the present invention.

Fig. 2 is a schematic structural diagram of a high-rise logistics lifting mechanism in the invention.

Fig. 3 is a schematic structural diagram of a first pick-and-place assembly of the high-rise logistics lifting mechanism in the invention.

Fig. 4 is a partial structural view of a lifting unit of the high-rise logistics lifting mechanism in the invention.

Fig. 5 is a schematic structural view of the automatic box loading and unloading mechanism of the present invention.

Fig. 6 is a schematic view of the structure of fig. 5 in another direction.

Fig. 7 is a partial enlarged view of fig. 6 at a.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "comprising" and "having," as well as any variations thereof, in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments.

As shown in fig. 1, 2 and 5, an integrated intelligent library according to a preferred embodiment of the present invention includes: a magazine body 100 having a plurality of stages and provided with a plurality of shelves 300 for storing medicine boxes 200; a high-rise logistics lifting mechanism 400 including a first transfer unit 1 and a lifting unit 2 connected to the first transfer unit 1, the first transfer unit 1 being configured to drive the medicine boxes 200 to enter or exit the storage shelves 300, the lifting unit 2 being configured to drive the first transfer unit 1 to reciprocate between floors of the container body 100; and an automatic case discharging and feeding mechanism 500 located at the bottom of the container body 100, wherein the automatic case discharging and feeding mechanism 500 includes a conveying line 3 and a second transfer unit 4, the conveying line 3 is configured to transfer the medicine cases 200 to and from the container body 100, and the second transfer unit 4 is configured to receive the first transfer unit 1 and the conveying line 3, and to transfer the medicine cases 200 on the conveying line 3 to the first transfer unit 1 or transfer the medicine cases 200 on the first transfer unit 1 to the conveying line 3.

Referring to fig. 2 and 3, the first transfer unit 1 includes a first conveyor 11 that carries the medicine boxes 200, the first conveyor 11 includes a first timing belt 111 and a first driving motor 112 that drives the first timing belt 111 to rotate, and the medicine boxes 200 can be transported to or from the shelves 300 by the first timing belt 111. In order to smoothly convey the medicine boxes 200, the first synchronization belts 111 are provided in two numbers and are disposed to face each other so as to support both sides of the medicine boxes 200. A first transmission shaft 113 is connected between the first synchronous belts 111, and the first driving motor 112 is in transmission connection with the first transmission shaft 113 so as to realize synchronous rotation of the two first synchronous belts 111.

In the present embodiment, the shelf 300 is specifically provided at a layer other than the bottom layer of the library body 100. The end of the first conveyor line 11 is an entrance side, the shelf 300 corresponds to the entrance side of the first conveyor line 11, and a conveyor line (not shown) for supporting the medicine boxes 200 is also provided on the shelf 300 so as to be engaged with the first conveyor line 11 to pick and place the medicine boxes. Preferably, both ends of the first conveyor line body 11 are inlet and outlet sides, two shelves 300 are provided for each layer of the magazine body 100, the shelves 300 are respectively located at both inlet and outlet sides of the first conveyor line body 11, and the first conveyor line body 11 can respectively input or output medicine boxes to and from the shelves 300 at both sides thereof, so as to improve space utilization.

Further, in order to prevent the medicine boxes 200 from coming off the first conveyor line body 11, the first transfer unit 1 further includes a barrier 12 that blocks and guides the medicine boxes 200, the barrier 12 is provided outside the first conveyor line body 11 along the conveying direction of the first conveyor line body 11, and the barrier 12 is provided in two pieces and is provided in an opposed manner.

Further, referring to fig. 1 and 2, the lifting assembly 2 includes a lifting frame 21 and a lifting platform 22 connected to the lifting frame 21 for holding the first picking assembly 1.

The lifting frame 21 extends in a vertical direction from the bottom layer of the bank 100 to the top layer of the bank 100. The lifting frame 21 is provided with a plurality of outwardly extending connecting blocks 211, and the connecting blocks 211 are used for contacting the wall surface 101 and the ground surface 102 of the storehouse body 100 and are fastened with the wall surface 101 and the ground surface 102 through fasteners (not shown).

Referring to fig. 3 and 4, the lifting platform 22 is slidably coupled to the lifting frame 21 and can be automatically lifted along the length direction of the lifting frame 21. Specifically, the lifting assembly 2 includes a guiding device 23 for guiding the lifting platform 22 to slide, the guiding device 23 includes a guide rail 231 fixed on the lifting frame 21 along the length direction of the lifting frame 21 and a plurality of sliding blocks 232 slidably coupled with the guide rail 231, and the lifting platform 22 is connected with the sliding blocks 232. In this embodiment, the number of the guide rails 231 is two, and the two guide rails are respectively located at two sides of the lifting platform 22.

The lifting assembly 2 further comprises a lifting device for driving the lifting platform 22 to lift, wherein the lifting device comprises a lifting chain 241 arranged on the lifting frame 21 and a chain wheel assembly 242 arranged on the lifting platform 22 and in transmission connection with the lifting chain 241.

The lift chain 241 is fixed to the lift frame 21 along the longitudinal direction of the lift frame 21, and both ends of the lift chain 241 are fixed to the upper end and the lower end of the lift frame 21, respectively. The sprocket assembly 242 comprises a second driving motor 2421 and a driving sprocket 2422 mounted on the lifting platform 22, the driving sprocket 2422 is in transmission connection with the second driving motor 2421, the driving sprocket 2422 is engaged with the lifting chain 241, and the second driving motor 2421 can drive the driving sprocket 2422 to rotate so as to convert the rotation motion thereof into the lifting motion of the lifting platform 22.

Preferably, to improve the reliability of the lifting platform 22, the sprocket assembly 242 further comprises a plurality of driven sprockets 2423 rotatably mounted on the lifting platform 22 and engaged with the lifting chain 241. In the present embodiment, the driven sprockets 2423 are two in number and are located at the upper and lower ends of the driving sprocket 2422, respectively.

Further, the number of the lifting chains 241 is two, and the two lifting chains are respectively located at two sides of the lifting platform 22, and correspondingly, two sets of the chain wheel assemblies 242 are correspondingly configured to be respectively engaged with the two lifting chains 241. Preferably, in order to ensure the two sets of sprocket assemblies 242 rotate synchronously and save cost, in the present embodiment, the two sets of sprocket assemblies 242 are driven by the same driving motor. Specifically, a transmission assembly 243 is disposed between the two sets of sprocket assemblies 242. The transmission assembly 243 includes a second transmission shaft 2431 and a gear set 2432, two ends of the second transmission shaft 2431 are respectively connected to the two driving sprockets 2422, and the gear set 2432 is received between the second transmission shaft 2431 and the second driving motor 2421 to drive the second transmission shaft 2431 to rotate.

Preferably, in order to improve the conveying efficiency, in the present embodiment, the plurality of lifting platforms 22 are provided on the lifting frame 21, so that the plurality of first transfer units 1 can be provided on the lifting frame 21 to convey the plurality of medicine boxes 200, respectively. Correspondingly, the guide means 23 and the lifting means are also grouped to interface with different lifting platforms 22. In this embodiment, the number of the lifting platforms 22 is two, and the lifting platforms are respectively disposed on a side of the lifting frame 21 away from the wall surface 101 and at a middle position of the lifting frame 21. The second picking assemblies 4 correspond to the number of the first picking assemblies 1 to be abutted with different first picking assemblies 1 and receive the medicine boxes 200.

Referring to fig. 5 and 6, one side of the conveyor line 3 is connected to an entrance/exit (not shown) of the storage body 100. The conveying line 3 specifically adopts a roller conveying structure, which includes a rack 31 and a plurality of rollers 32 arranged side by side on the rack 31 at intervals, and the rollers 32 rotate synchronously by means of a synchronous belt cooperating with a motor to support and convey the medicine boxes 200.

The second pick-and-place unit 4 includes a second conveyor line body 41 disposed below the side of the conveyor line 3 away from the entrance/exit of the magazine body 100, and the second conveyor line body 41 is movable up and down with respect to the conveyor line 3 to lift the medicine boxes 200 on the conveyor line 3 or place the medicine boxes 200 in the conveyor line 3. The second conveyor line body 41 has a structure similar to that of the first conveyor line body 11, and conveys the medicine boxes 200 by means of a synchronous belt cooperating with a motor. The second conveyor body 41 is positioned between the rollers 32 to avoid being blocked by the rollers 32 when being lifted. The conveying direction of the second conveyor line 41 coincides with the conveying direction of the first conveyor line 11, so as to cooperate with the first conveyor line 11 to convey the medicine boxes 200.

Referring to fig. 7, the second pick-and-place assembly 4 further includes a lifting frame 42 disposed below the second conveyor line body 41 and supporting the second conveyor line body, and a driving assembly 43 in transmission connection with the lifting frame 42, wherein the driving assembly 43 can drive the lifting frame 42 to lift and further drive the second conveyor line body 41 to lift.

Specifically, the lifting frame 42 includes a mounting plate 421 fixed on the frame 31 of the conveyor line 3 and a lifting plate 422 connected to the mounting plate 421 and capable of lifting relative to the mounting plate 421, and the second conveyor line body 41 is disposed on the lifting plate 422. The lifting frame 42 further comprises a plurality of guide posts 423 movably penetrating the mounting plate 421 in the vertical direction, the upper ends of the guide posts 423 are connected with the lifting plate 422, and the lower ends of the guide posts 423 are provided with support plates (not shown) for preventing the guide posts 423 from separating from the mounting plate 421. In the present embodiment, the number of the guiding studs 423 is four, and the guiding studs are respectively located at four corners of the lifting plate 422.

The driving assembly 43 comprises a third driving motor 431 arranged on the mounting plate 421 and an eccentric wheel 432 eccentrically sleeved at the output end of the third driving motor 431, the eccentric wheel 432 is positioned below the lifting plate 422, and the lifting plate 422 is always in contact with and supported by the eccentric wheel 432 under the action of gravity. The eccentric wheel 432 is driven to rotate by the third driving motor 431, and the eccentric wheel 432 can drive the lifting plate 422 to move up and down. By adopting the above mode to carry out lifting transmission, the structure is simple, the occupied space is small, and the transmission is very stable.

Preferably, the driving assembly 43 further includes a third transmission shaft 433, the third transmission shaft 433 is located below the lifting plate 422 and extends from one side of the lifting plate 422 to the other side, one end of the third transmission shaft 433 is connected to an output end of a third driving motor 431, and a plurality of eccentric wheels 432 are provided and are eccentrically sleeved on the third transmission shaft 433. Through setting up third transmission shaft 433, it can overlap and establish a plurality of eccentric wheels 432 to support and the transmission, improve the stability of going up and down to a plurality of positions of lifter plate 422. In addition, the other end of the third transmission shaft 433 is connected to a bearing seat (not shown) fixed to the mounting plate 421, so as to provide a rotational support for the third transmission shaft 433.

In addition, the automatic box-in and out mechanism 500 and the high-rise logistics lifting mechanism 400 are provided with a plurality of sensing devices to detect the positions of the medicine boxes 200, and the lifting assembly 2, the first picking and delivering assembly 1, the conveying line 3 and the second picking and delivering assembly 4 can coordinate and automatically work according to detection signals sent by the sensing devices, so that the automatic picking and placing of the medicine boxes 200 are completed.

The working process of the invention is as follows: when medicine needs to be added to the shelf 300, an operator places the medicine boxes 200 into the conveying line 3 at the entrance and exit of the bottom layer of the storehouse body 100, the conveying line 3 conveys the medicine boxes 200 to the position above the second taking and conveying assembly 4, and the second taking and conveying assembly 4 rises and lifts up the medicine boxes 200;

then the lifting assembly 2 drives the first picking and delivering assembly 1 to descend from the upper layer of the warehouse body 100 to the bottom layer of the warehouse body 100 and is at the same horizontal height with the second picking and delivering assembly 4, and the first picking and delivering assembly 1 and the second picking and delivering assembly 4 operate to convey the medicine boxes 200 from the second picking and delivering assembly 4 to the first picking and delivering assembly 1;

finally, the lifting assembly 2 drives the first taking and delivering assembly 1 to ascend to a shelf 300 on a specified layer, the first conveying line body 11 drives the medicine boxes 200 to move to the shelf 300, and the conveying line located at the shelf 300 rotates along the conveying direction of the first conveying line body 11 to receive the medicine boxes 200 to finish medicine adding;

when there is a empty medicine box to be collected on the shelf 300, the lifting assembly 2 drives the first picking and delivering assembly 1 to move to the shelf 300 position where the medicine box 200 is to be collected, the conveying line on the shelf 300 drives the medicine box 200 to move away from the shelf 300, and the first conveying line body 11 rotates along the conveying direction of the conveying line at the shelf 300 to receive the medicine box 200;

then the lifting assembly 2 drives the first picking assembly 1 to move downwards to the second picking assembly 4, and simultaneously the second picking assembly 4 rises to match the first picking assembly 1 so as to transfer the medicine boxes 200 from the first picking assembly 1 to the second picking assembly 4;

finally, the second picking and delivering unit 4 is lowered to put the medicine boxes 200 on the conveyor line 3, and the conveyor line 3 can drive the medicine boxes 200 to move toward the entrance and exit of the container body 100 to output the medicine boxes 200 to the container body 100, thereby completing the collection.

In conclusion, the automatic medicine taking and placing mechanism is matched with the high-rise logistics lifting mechanism, so that the automatic medicine taking and placing of the medicine boxes of the multi-layer structure type storehouse body can be realized, manual operation of going up and down stairs for conveying the medicine boxes is avoided, the labor intensity is effectively reduced, and the medicine taking and placing efficiency is improved.

The above description is only for the purpose of illustrating embodiments of the present invention and is not intended to limit the scope of the present invention, and all modifications, equivalents, and equivalent structures or equivalent processes that can be used directly or indirectly in other related fields of technology shall be encompassed by the present invention.

Claims

1. An integrated intelligent library, comprising:

a magazine body (100) having a plurality of stages and provided with shelves (300) for storing medicine boxes (200);

the high-rise logistics lifting mechanism (400) comprises a first picking assembly (1) and a lifting assembly (2) connected with the first picking assembly (1), wherein the first picking assembly (1) is configured to drive the medicine boxes (200) to input or output the goods shelves (300), and the lifting assembly (2) is configured to drive the first picking assembly (1) to reciprocate between floors of the warehouse body (100); and

an automatic case outlet and inlet mechanism (500) located at the bottom layer of the warehouse body (100), wherein the automatic case outlet and inlet mechanism (500) comprises a conveying line (3) and a second taking and conveying assembly (4), the conveying line (3) is configured to input or output the medicine cases (200) into or out of the warehouse body (100), the second taking and conveying assembly (4) is used for receiving the first taking and conveying assembly (1) and the conveying line (3) so as to input the medicine cases (200) on the conveying line (3) into the first taking and conveying assembly (1) or input the medicine cases (200) on the first taking and conveying assembly (1) into the conveying line (3).

2. The integrated intelligent warehouse according to claim 1, wherein the first pick-and-place assembly (1) comprises a first conveyor line body (11) holding the medicine boxes (200), and the first conveyor line body (11) comprises a first synchronization belt (111) and a first driving motor (112) driving the first synchronization belt (111) to rotate.

3. The integrated intelligent library according to claim 1, wherein the lifting assembly (2) comprises a lifting frame (21) and a lifting platform (22) for supporting the first picking assembly (1), the lifting platform (22) is slidably coupled with the lifting frame (21), and the lifting platform (22) can be actively lifted along the lifting frame (21).

4. The integrated intelligent garage of claim 3, wherein the lifting assembly (2) comprises a lifting device for driving the lifting platform (22) to lift, the lifting device comprises a lifting chain (241) disposed on the lifting frame (21) and a sprocket assembly (242) disposed on the lifting platform (22) and in transmission connection with the lifting chain (241), and the sprocket assembly (242) can drive the lifting platform (22) to move along the lifting chain (241).

5. The integrated intelligent library according to claim 3, wherein the lifting platforms (22) are multiple in number, each lifting platform (22) is provided with the first picking assembly (1), and the second picking assemblies (4) are multiple in number and correspond to the first picking assemblies (1).

6. The integrated intelligent garage of claim 1, wherein the second pick-and-place assembly (4) comprises a second conveyor line (41) for conveying the medicine boxes (200), the second conveyor line (41) being liftable with respect to the conveyor line (3) for lifting the medicine boxes (200) on the conveyor line (3) or placing the medicine boxes (200) in the conveyor line (3).

7. The integrated intelligent warehouse according to claim 6, wherein the conveyor line (3) comprises a plurality of rollers (32) arranged side by side at intervals and used for conveying the medicine boxes (200), and the second conveyor line body (41) is positioned between the rollers (32).

8. The integrated intelligent warehouse according to claim 6, wherein the second pick-and-place assembly (4) further comprises a lifting frame (42) arranged below the second conveyor line body (41) and used for supporting the second conveyor line body, and a driving assembly (43) in transmission connection with the lifting frame (42), wherein the driving assembly (43) can drive the lifting frame (42) and the second conveyor line body (41) to lift.

9. The integrated intelligent warehouse according to claim 8, wherein the lifting frame (42) comprises a mounting plate (421), a plurality of guide posts (423) movably penetrating through the mounting plate (421) in the vertical direction, and a lifting plate (422) connected to the upper ends of the guide posts (423), and the second conveyor line body (41) is arranged on the lifting plate (422).

10. The integrated intelligent warehouse according to claim 9, wherein the driving assembly (43) comprises a third driving motor (431) arranged on the mounting plate (421) and an eccentric wheel (432) eccentrically sleeved at the output end of the third driving motor (431), the lifting plate (422) is positioned above and in contact with the eccentric wheel (432), and the third driving motor (431) can drive the eccentric wheel (432) to rotate so as to drive the lifting plate (422) to lift.