Three-in-one elevator used in multi-layer vertical warehouse

Abstract

The utility model provides a three-in-one elevator used in a multi-layer vertical warehouse, which comprises a main frame assembly, a lifting mechanism and a lifting mechanism, the main frame assembly comprises an inner frame and outer frames, and the outer frames are respectively arranged on two sides of the inner frame; the material side cargo carrying table assemblies are not lower than the two layers of material side cargo carrying table assemblies; the shuttle vehicle moves back and forth between the main frame assembly and the multi-layer vertical warehouse, the materials flow on the horizontal plane between the main frame assembly and the multi-layer vertical warehouse through the shuttle vehicle, and the material side cargo carrying table assembly helps the materials flow on the vertical plane between the shuttle vehicle and the ground along the main frame assembly; and the shuttle vehicle reaches different floors of the multi-floor stereoscopic warehouse through the layer-changing cargo carrying table assembly. The material side cargo carrying table assembly replaces the shuttle vehicle to complete the conveying task on the vertical plane, the shuttle vehicle completes the material carrying work on the horizontal plane, the time occupied by the shuttle vehicle is shortened, meanwhile, the material conveying efficiency is improved, and the input number of the shuttle vehicle can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of logistics piece-picking, and particularly relates to a three-in-one elevator used in a multi-layer automated warehouse. Background Art

[0002] With the development of technology, the popularization of material technology, and the closer connection between the warehousing and logistics sorting system and production, many factories require a seamless unmanned connection between the end of production and warehousing sorting logistics, integrating production, warehousing, sorting, etc. into a complete system. New technologies and concepts in all aspects are rapidly evolving and growing, breaking through the constraints of the existing logistics planning.

[0003] The logistics piece-picking operation is the most time-consuming, complex, and technically demanding link inside the warehouse, becoming the bottleneck affecting logistics costs and operation efficiency. With the rapid development of related industries, the fragmentation of a large number of SKUs and orders has become increasingly obvious. In the context of the continuous increase in labor costs, various "goods-to-person" solutions have emerged. Among them, multi-shuttle warehousing, with its outstanding advantages of intensive storage, fast access, and flexible configuration, can significantly improve space utilization and logistics efficiency and save labor, so it is increasingly favored by enterprises;

[0004] However, in the prior art, most multi-shuttle warehousing relies on shuttle cars to cooperate with traditional lifting equipment to travel back and forth between the multi-layer automated warehouse and the ground. In the actual operation process, the shuttle car needs to reach the horizontal plane where the goods are stored in the multi-layer automated warehouse to complete the picking or placing of materials and the horizontal transfer, and then complete the vertical transfer through the traditional lifting equipment. The whole process of material transfer requires the full participation of the shuttle car. Although more shuttle cars can be put into use to improve the transfer efficiency to a certain extent, the conveying efficiency of traditional lifting equipment is limited and cannot significantly improve the material transfer efficiency. Moreover, more shuttle cars will increase the equipment investment cost. Summary of the Utility Model

[0005] The utility model provides a three-in-one elevator used in a multi-layer automated warehouse, aiming to solve the problem that in the current material transfer process, the full participation of shuttle cars is required, and a large number of shuttle cars are needed to meet the requirement of transfer efficiency, which not only has limited improvement in transfer efficiency but also increases the overall equipment investment cost.

[0006] The utility model is realized as follows: A three-in-one elevator used in a multi-layer automated warehouse includes:

[0007] A main frame assembly, which includes an inner frame and an outer frame, and the outer frame is arranged on both sides of the inner frame;

[0008] A layer-changing cargo platform assembly and not less than two groups of material-side cargo platform assemblies; the layer-changing cargo platform assembly slides on the inner frame, and the material-side cargo platform assemblies slide on the outer frame;

[0009] A shuttle car shuttles between the main frame assembly and the multi-layer vertical warehouse. Materials are transferred horizontally between the main frame assembly and the multi-layer vertical warehouse through the shuttle car, while the material side loading platform assembly helps the materials to be transferred vertically between the shuttle car and the ground along the main frame assembly;

[0010] The shuttle car reaches different floors of the multi-layer vertical warehouse through the layer-changing loading platform assembly.

[0011] Preferably, a main sliding guide rail is provided inside the inner frame, and the layer-changing loading platform assembly slides on the main sliding guide rail. A third traction unit is provided inside the main frame assembly. The third traction unit includes a counterweight module, a main servo drive module, and a third guiding component provided at the top of the main frame assembly. The counterweight module and the main servo drive module are respectively connected to the layer-changing loading platform assembly.

[0012] Preferably, the number of the material side loading platform assemblies is two groups, namely a first material side loading platform assembly and a second material side loading platform assembly. A first traction unit and a second traction unit are further provided inside the main frame assembly. The first traction unit and the second traction unit respectively traction the first material side loading platform assembly and the second material side loading platform assembly to move vertically along the outer frame.

[0013] Preferably, the layer-changing loading platform assembly includes a main frame assembly and a guide wheel combination. The guide wheel combination is arranged on the side wall of the main frame assembly, and the guide wheel combination slides on the main sliding guide rail.

[0014] The main servo drive module includes a synchronous belt, a synchronous pulley, and a servo motor. The third guiding component includes a counterweight guide wheel and a synchronous guide wheel. The synchronous belt rotates between the synchronous pulley and the synchronous guide wheel, and the servo motor generates power to drive the synchronous belt to rotate; the counterweight module includes a traction rope and a counterweight. One end of the traction rope is connected to the counterweight, and the other end is wound around the outer edge of the counterweight guide wheel and then connected to the main frame assembly.

[0015] Preferably, the structures of the first traction unit, the second traction unit, and the third traction unit are the same.

[0016] Preferably, the first material side loading platform assembly includes a conveying support, a side frame plate, a traction guide wheel, and a roller conveyor line;

[0017] The roller conveyor line is arranged on the conveying support. The side frame plate is vertically connected to the conveying support. The side frame plate slides on a side sliding guide rail provided inside the outer frame, and the side frame plate is connected to the first traction unit.

[0018] Preferably, the structures of the first material side loading platform assembly and the second material side loading platform assembly are the same.

[0019] Preferably, an extension guide rail is further provided on the main frame assembly, and the extension guide rail slides on a sliding track provided on the main frame assembly;

[0020] A driving unit is provided on the main frame assembly, and the driving unit includes an extension servo motor, a driving gear, and a rack provided on the extension guide rail; the driving gear is provided on the motor shaft of the extension servo motor, the extension servo motor is assembled on the main frame assembly, and the extension guide rail extends out of the main frame assembly through gear-rack transmission.

[0021] Preferably, the three-in-one elevator used in the multi-layer vertical warehouse further includes a first auxiliary conveyor belt and a second auxiliary conveyor belt. The first auxiliary conveyor belt and the second auxiliary conveyor belt are arranged on the horizontal plane where the shuttle car transfers between the main frame assembly and the multi-layer vertical warehouse. The materials on the shuttle car are transferred to and from the material side loading platform assembly through the first auxiliary conveyor belt and the second auxiliary conveyor belt.

[0022] Preferably, the first material side loading platform assembly is an outlet channel, and the second material side loading platform assembly is an inlet channel.

[0023] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0024] The three-in-one elevator used in the multi-layer vertical warehouse provided by the present utility model completes the vertical transportation task through the first material side loading platform assembly and the second material side loading platform assembly in place of the shuttle car, while the shuttle car completes the material handling work on the horizontal plane, reducing the occupation time of the shuttle car and improving the material transportation efficiency, and can reduce the number of shuttle cars put into use; at the same time, the shuttle car forms a transfer between different shelf layers by using the layer-changing loading platform assembly, further improving the utilization efficiency of the shuttle car, reducing the number of shuttle cars to be put into use, and lowering the overall investment cost of the equipment. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of a three-in-one elevator used in a multi-layer vertical warehouse provided by the present utility model.

[0026] Figure 2 is a schematic structural diagram of the shelf layer and the main frame assembly of a multi-layer vertical warehouse of a three-in-one elevator used in a multi-layer vertical warehouse provided by the present utility model.

[0027] Figure 3 is a schematic structural diagram of the main frame assembly of a three-in-one elevator used in a multi-layer vertical warehouse provided by the present utility model.

[0028] Figure 4 is a schematic structural diagram of the first traction unit, the second traction unit, and the third traction unit of a three-in-one elevator used in a multi-layer vertical warehouse provided by the present utility model.

[0029] Figure 5 It is a schematic structural diagram of a material side load-carrying platform assembly and a layer-changing load-carrying platform assembly using a three-in-one elevator in a multi-layer automated storage warehouse provided by the present utility model.

[0030] Figure 6 It is a schematic structural diagram of a drive base assembly using a three-in-one elevator in a multi-layer automated storage warehouse provided by the present utility model.

[0031] Figure 7 It is a schematic structural diagram of a guiding top seat assembly using a three-in-one elevator in a multi-layer automated storage warehouse provided by the present utility model.

[0032] Figure 8 It is a schematic structural diagram of a layer-changing load-carrying platform assembly using a three-in-one elevator in a multi-layer automated storage warehouse provided by the present utility model.

[0033] Figure 9 It is a schematic structural diagram of a side frame plate using a three-in-one elevator in a multi-layer automated storage warehouse provided by the present utility model.

[0034] Figure 10 It is a schematic structural diagram of a roller conveyor line using a three-in-one elevator in a multi-layer automated storage warehouse provided by the present utility model.

[0035] Description of reference numerals:

[0036] 100, main frame assembly; 110, inner frame; 120, outer frame;

[0037] 200, layer-changing load-carrying platform assembly; 210, extension guide rail; 220, main frame assembly; 230, guide wheel combination; 240, traction device;

[0038] 310, first material side load-carrying platform assembly; 311, conveying support; 312, side frame plate; 313, traction guide wheel; 314, roller conveyor line; 320, second material side load-carrying platform assembly;

[0039] 410, guiding top seat assembly; 411, first guiding component; 412, first guiding component; 413, first guiding component; 420, drive base assembly; 421, bottom frame; 422, first servo drive module; 423, second servo drive module; 424, main servo drive module;

[0040] 510, shuttle car; 520, first auxiliary conveyor belt; 530, second auxiliary conveyor belt;

[0041] 610, shelf; 620, corridor. Detailed implementation manners

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification, claims or drawings of this application are used to distinguish different objects and not to describe a specific order.

[0043] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of this application. The phrase does not necessarily refer to the same embodiment at every occurrence in the specification, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0044] An embodiment of the utility model provides a three-in-one elevator used in a multi-layer automated storage and retrieval system, as Figures 1 - 10 shown. The three-in-one elevator used in the multi-layer automated storage and retrieval system includes:

[0045] A main frame assembly 100, the main frame assembly 100 includes an inner frame 110 and an outer frame 120, and the outer frame 120 is disposed on both sides of the inner frame 110;

[0046] A layer-changing load platform assembly 200, a first material side load platform assembly 310, and a second material side load platform assembly 320. The layer-changing load platform assembly 200 slides on the inner frame 110, and the first material side load platform assembly 310 and the second material side load platform assembly 320 slide on different outer frames 120 respectively. A first traction unit, a second traction unit, and a third traction unit are provided in the main frame assembly 100, and the first traction unit, the second traction unit, and the third traction unit generate power to drive the first material side load platform assembly 310, the second material side load platform assembly 320, and the layer-changing load platform assembly 200 to move in the vertical direction respectively;

[0047] A shuttle car 510, the shuttle car 510 shuttles between the layer-changing load platform assembly 200 and the multi-layer automated storage and retrieval system. The shuttle car 510 reaches the shelf layer at the specified number of layers through the layer-changing load platform assembly 200. When the shuttle car 510 reaches the shelf layer at the specified number of layers, materials are transferred between the shelf 610, the first material side load platform assembly 310, and the second material side load platform assembly 320 through the shuttle car 510;

[0048] In this application, the multi-layer automated storage warehouse is composed of multiple layers of shelves stacked on top of each other. On different shelf layers, two groups of parallel shelves 610 are placed. The gap between the shelves 610 forms a corridor 620. The shuttle car 510 serves as a material transportation tool on the horizontal plane of the shelf layer and reaches near the designated shelf 610 along the corridor 620. The first material side loading platform assembly 310 and the second material side loading platform assembly 320 serve as the vertical transportation channels during the material transfer process. During the material handling process, after the shuttle car 510 obtains the corresponding material on the shelf 610 of the designated shelf layer, it moves to the vicinity of the first material side loading platform assembly 310 or the second material side loading platform assembly 320 through its own movement, and transfers the material to the first material side loading platform assembly 310 or the second material side loading platform assembly 320. The first material side loading platform assembly 310 or the second material side loading platform assembly 320 performs vertical transportation to transfer the material from a high place to the ground layer, and cooperates with the conveyor belt provided on the ground layer to complete the entire set of material sampling. The shuttle car 510 no longer participates in the subsequent vertical transportation link. At the same time, the layer-changing loading platform assembly 200 will serve as the carrier of the shuttle car 510 to complete the transfer between different shelf layers.

[0049] In this way, the first material side loading platform assembly 310 and the second material side loading platform assembly 320 take over the vertical transportation task of the shuttle car 510. The shuttle car 510 synchronously completes the material handling work on the horizontal plane. The first material side loading platform assembly 310 and the second material side loading platform assembly 320 cooperate with the shuttle car 510 to complete the material transportation work, reducing the occupation time of the shuttle car 510, thereby reducing the input quantity and improving the material transportation efficiency. At the same time, the shuttle car 510 uses the layer-changing loading platform assembly 200 to complete the transfer between different shelf layers, further improving the utilization efficiency of the shuttle car 510 and reducing the number of shuttle cars 510 to be put into use.

[0050] The first material side loading platform assembly 310 and the second material side loading platform assembly 320 can be respectively set as the discharge and feed channels. In addition to setting the first material side loading platform assembly 310 and the second material side loading platform assembly 320 in the above technical solution, more groups of material side loading platform assemblies can also be set as the vertical transportation channels to cooperate with the shuttle car 510 to accelerate the material transportation efficiency.

[0051] As a preferred implementation manner in this embodiment, a guiding top seat assembly 410 and a driving base assembly 420 are respectively provided at the bottom and top of the main frame assembly 100.

[0052] The guiding top seat assembly 410 is provided with a first guiding assembly 411, a second guiding assembly 412 and a third guiding assembly 413. The first guiding assembly 411, the second guiding assembly 412 and the third guiding assembly 413 have the same structure and are mainly composed of a counterweight guide wheel and a synchronous guide wheel structure;

[0053] The driving base assembly 420 includes a bottom frame 421 and a first servo driving module 422, a second servo driving module 423 and a main servo driving module 424 provided on the bottom frame 421. The first servo driving module 422, the second servo driving module 423 and the main servo driving module 424, the first servo driving module 422, the second servo driving module 423 and the main servo driving module 424 and the first guiding assembly 411, the second guiding assembly 412 and the third guiding assembly 413 form a first traction unit, a second traction unit and a third traction unit in one-to-one correspondence;

[0054] The first servo driving module 422, the second servo driving module 423 and the main servo driving module 424 have the same principle and mainly adopt existing technical structures such as servo motors, synchronous belts and synchronous pulleys. They cooperate with the first guiding assembly 411, the second guiding assembly 412 and the third guiding assembly 413 located at the bottom of the main frame assembly 100 for traction movement to realize the vertical movement of the layer-changing cargo platform assembly 200, the first material side cargo platform assembly 310 and the second material side cargo platform assembly 320;

[0055] As a preferred implementation manner in this embodiment, the first material side cargo platform assembly 310 includes a conveying support 311, a side frame plate 312, a traction guide wheel 313 and a roller conveyor line 314;

[0056] The roller conveyor line 314 is arranged on the conveying support 311. The side frame plate 312 is vertically connected to the conveying support 311. The side frame plate 312 slides on the side sliding guide rail provided in the outer frame 120; The roller conveyor line 314 is an existing technology, and at least two sets of power rollers are used for the material movement on the roller conveyor line 314;

[0057] A plurality of groups of guide wheels are provided on the side frame plate 312 to help the side frame plate 312 slide along the first guide rail; The traction guide wheel 313 is arranged on the side frame plate 312, and the side frame plate 312 is provided with a traction guide wheel 313 for connecting the configuration; The side frame plate 312 is fixedly connected to the synchronous belt in the first traction unit. The synchronous belt in the first traction unit is nested between the synchronous pulley and the synchronous guide wheel in the first guiding assembly 411. The synchronous belt generates power during rotation to realize the lifting of the first material side cargo platform assembly 310; The synchronous belt structure can ensure the stability of the running speed in the up and down processes;

[0058] A first auxiliary conveyor belt 520 and a second auxiliary conveyor belt 530 are also provided on each shelf layer. The first auxiliary conveyor belt 520 and the second auxiliary conveyor belt 530 adopt existing conveying equipment and mainly receive materials delivered by the shuttle vehicle 510. The first auxiliary conveyor belt 520 and the second auxiliary conveyor belt 530 deliver the materials delivered by the shuttle vehicle 510 to the first material side loading platform assembly 310 or the second material side loading platform assembly 320. The materials on the first material side loading platform assembly 310 or the second material side loading platform assembly 320 are also received by the first auxiliary conveyor belt 520 and the second auxiliary conveyor belt 530. The shuttle vehicle 510 delivers the materials on the first auxiliary conveyor belt 520 and the second auxiliary conveyor belt 530 to the corresponding shelves.

[0059] In this embodiment, the connection between the synchronous belt in the first traction unit and the first material side cargo platform assembly 310 adopts the existing technical means, which will not be described in detail here. The second material side cargo platform assembly 320 has the same structure as the first material side cargo platform assembly 310;

[0060] As a preferred implementation in this embodiment, the layer-changing cargo platform assembly 200 includes a main frame assembly 220 and a guide wheel assembly 230; the main frame assembly 220 is welded by steel beams and steel columns to form a frame structure, and the main servo drive module 424 in the third traction unit includes a synchronous belt, a synchronous wheel and a servo motor, the synchronous belt is nested between the synchronous wheel and the main driving wheel assembly located at the top of the guide top seat assembly 410, and the synchronous belt is connected to the main frame assembly 220; the main servo drive module 424 pulls the main frame assembly 220 to move;

[0061] The inner frame 110 is provided with a main sliding guide rail, and the guide wheel assembly 230 slides along the main sliding guide rail. The number of the guide wheel assembly 230 is not less than four groups, which are respectively arranged on different end surfaces of the main frame assembly 220. The main sliding guide rail is adapted to the guide wheel assembly 230;

[0062] The main frame assembly 220 is also provided with an extension rail 210, and the extension rail 210 slides on a sliding track provided on the main frame assembly 220. The main frame assembly 220 is provided with a driving unit, and the driving unit includes an extension servo motor, a driving gear, and a rack provided on the extension rail 210; the driving gear is provided on the motor shaft of the extension servo motor, and the extension servo motor is assembled on the main frame assembly 220; the extension rail 210 is extended outwardly through the technical principle of gear rack transmission, so as to help the shuttle vehicle 510 complete the transfer between the shelf layer and the layer-changing cargo platform assembly 200;

[0063] A traction device 240 is further provided on the main frame assembly 220. The traction device 240 is connected to a counterweight through a traction rope, and a counterweight guide wheel structure on the third guiding assembly 413 is used for the steering of the traction rope.

[0064] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0065] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions or other adjustments to the features in the embodiments of the present invention according to the situation without creative efforts, so as to obtain different technical solutions that essentially do not depart from the concept of the present invention, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A three-in-one elevator used in a multi-layer automated storage and retrieval system, characterized in that, Comprising: A main frame component (100), the main frame component (100) includes an inner frame (110) and an outer frame (120), and the outer frame (120) is disposed on both sides of the inner frame (110); A layer-changing loading platform component (200) and no less than two sets of material side loading platform components; the layer-changing loading platform component (200) slides on the inner frame (110), and the material side loading platform components slide on the outer frame (120); A shuttle car (510), the shuttle car (510) shuttles between the main frame component (100) and the multi-layer vertical warehouse, and materials are transferred horizontally between the main frame component (100) and the multi-layer vertical warehouse through the shuttle car (510). With the help of the material side loading platform components, the materials are transferred vertically between the shuttle car (510) and the ground along the main frame component (100); A first auxiliary conveyor belt (520) and a second auxiliary conveyor belt (530), the first auxiliary conveyor belt (520) and the second auxiliary conveyor belt (530) are arranged on different floors of the multi-layer vertical warehouse, and the first auxiliary conveyor belt (520) and the second auxiliary conveyor belt (530) are arranged on one side of the multi-layer vertical warehouse close to the main frame component (100). The shuttle car (510) exchanges and transfers materials with the material side loading platform components through the first auxiliary conveyor belt (520) and the second auxiliary conveyor belt (530); The shuttle car (510) reaches different floors of the multi-layer vertical warehouse through the layer-changing loading platform component (200).

2. The three-in-one elevator used in a multi-story automated storage and retrieval system according to claim 1, wherein A main sliding guide rail is provided inside the inner frame (110), and the layer-changing loading platform component (200) slides on the main sliding guide rail. A third traction unit is provided inside the main frame component (100), and the third traction unit includes a counterweight module, a main servo drive module (424) and a third guiding component (413) provided at the top of the main frame component (100). The counterweight module and the main servo drive module (424) are respectively connected to the layer-changing loading platform component (200).

3. A three-in-one elevator used in a multi-layer automated storage and retrieval system as claimed in claim 2, wherein, The number of the material side loading platform components is two groups, namely a first material side loading platform component (310) and a second material side loading platform component (320). A first traction unit and a second traction unit are further provided inside the main frame component (100), and the first traction unit and the second traction unit respectively traction the first material side loading platform component (310) and the second material side loading platform component (320) to move vertically along the outer frame (120).

4. A three-in-one elevator used in a multi-story automated storage and retrieval system as claimed in claim 3, wherein, The layer-changing loading platform component (200) includes a main frame component (220) and a guide wheel assembly (230), the guide wheel assembly (230) is provided on the side wall of the main frame component (220), and the guide wheel assembly (230) slides on the main sliding guide rail; The main servo drive module (424) includes a synchronous belt, a synchronous pulley and a servo motor connected to the main frame assembly (220). The third guiding assembly (413) includes a counterweight guide pulley and a synchronous guide pulley. The synchronous belt rotates between the synchronous pulley and the synchronous guide pulley. The servo motor generates power to drive the synchronous belt to rotate, and the main frame assembly (220) connected to the synchronous belt moves vertically accordingly. The counterweight module includes a towing rope and a counterweight. One end of the towing rope is connected to the counterweight, and the other end is wound around the outer edge of the counterweight guide pulley and then connected to the main frame assembly (220).

5. The three-in-one elevator used in a multi-story automated storage and retrieval system according to claim 4, wherein The structures of the first towing unit, the second towing unit and the third towing unit are the same.

6. A three-in-one elevator used in a multi-layer automated storage and retrieval system as claimed in claim 5, wherein, The first material-side loading platform assembly (310) includes a conveying support (311), a side frame plate (312), a towing guide pulley (313) and a roller conveyor line (314). The roller conveyor line (314) is arranged on the conveying support (311). The side frame plate (312) is vertically connected to the conveying support (311). The side frame plate (312) slides on the side sliding guide rails provided in the outer frame (120). The side frame plate (312) is connected to the first towing unit.

7. A three-in-one elevator used in a multi-layer automated storage and retrieval system as claimed in claim 6, wherein, The structures of the first material-side loading platform assembly (310) and the second material-side loading platform assembly (320) are the same.

8. A three-in-one elevator used in a multi-layer automated storage and retrieval system as claimed in claim 4, wherein An extension guide rail (210) is further provided on the main frame assembly (220). The extension guide rail (210) slides on the sliding track provided on the main frame assembly (220).

9. A three-in-one elevator used in a multi-layer automated storage and retrieval system as claimed in claim 8, characterized in that, A driving unit is provided on the main frame assembly (220). The driving unit includes an extension servo motor, a driving gear and a rack provided on the extension guide rail (210). The driving gear is arranged on the motor shaft of the extension servo motor. The extension servo motor is assembled on the main frame assembly (220). The extension guide rail (210) extends out of the main frame assembly (220) through gear-rack transmission.

10. A three-in-one elevator used in a multi-story automated storage and retrieval system as claimed in claim 7, characterized in that, The first material-side loading platform assembly (310) is an unloading channel, and the second material-side loading platform assembly (320) is a loading channel.

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