A warehouse system based on four-way shuttles and elevators

Abstract

The application discloses a warehouse system based on a four-way shuttle vehicle and a lifting machine, which comprises a multi-layered shelf, each layer of which is provided with a passageway; the four-way shuttle vehicle comprises a vehicle body and a tray which is liftable and installed on the vehicle body; a lifting frame is arranged at the front side of the shelf and located at the front end of the passageway; the lifting machine is liftable and installed on the lifting frame, the lifting machine is provided with two goods carrying tracks which are symmetrically distributed left and right and a trolley track which is distributed between the two goods carrying tracks, and the horizontal height of the goods carrying track is higher than that of the trolley track; after the four-way shuttle vehicle carrying goods enters the trolley track through the passageway, the tray places the goods carried thereby on the goods carrying track, and then the four-way shuttle vehicle drives out of the trolley track. After the four-way shuttle vehicle takes goods on the shelf, the four-way shuttle vehicle can directly place the goods on the lifting machine and then execute the next task, so that the four-way shuttle vehicle does not need to move together with the taken goods to a specified layer of the shelf along with the lifting machine, and the efficiency of warehouse management is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of storing single or sequentially arranged objects in a warehouse or storage, and in particular to a warehouse system based on a four-way shuttle vehicle and a hoist. BACKGROUND

[0002] The shuttle rack warehouse system is a high-density storage system composed of racks, trolleys, hoists and forklifts. When storing goods, the hoist and the shuttle vehicle are at the front end of the fixed guide rail at the bottom of the rack. The forklift places the goods on the shuttle vehicle at the front end of the fixed guide rail in the rack aisle. The shuttle vehicle can carry the pallet goods to the designated position of the rack through the lifting of the hoist and the shuttle in the aisle. When taking goods, the hoist moves the shuttle vehicle to the designated height of the rack, the shuttle vehicle enters the aisle to drive the specified goods back to the hoist, and then the hoist drives the shuttle vehicle to descend to the front end of the fixed guide rail at the bottom of the rack, and the forklift takes the pallet goods from the shuttle vehicle.

[0003] In the above-mentioned dense warehouse system with four-way shuttle vehicles and hoists, the four-way shuttle vehicle needs to be lifted together with the hoist to realize the layer change of the pallet goods. After completing the layer change or warehouse entry and exit of the goods, the next layer change or warehouse entry and exit of the goods can be performed, which affects the management efficiency of the warehouse system. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a warehouse system that is beneficial to the management efficiency of goods, which adopts the technical scheme comprising:

[0005] A warehouse system based on a four-way shuttle vehicle and a hoist, comprising:

[0006] A plurality of racks, each layer being provided with a passageway;

[0007] A four-way shuttle vehicle, comprising a vehicle body and a pallet liftable mounted on the vehicle body;

[0008] A lifting frame arranged at the front side of the rack and located at the front end of the passageway;

[0009] A hoist liftable mounted on the lifting frame, the hoist having two goods carrying tracks symmetrically distributed left and right and a trolley track distributed between the two goods carrying tracks, and the horizontal height of the goods carrying track being higher than that of the trolley track, the hoist being liftable on the lifting frame so that the trolley track thereon is in butt joint with the passageway of any layer of the rack;

[0010] After the four-way shuttle vehicle carrying the goods enters the channel and the tray places the goods on the goods carrying track, the four-way shuttle vehicle drives out of the trolley track.

[0011] An embodiment of the present application adopts the technical scheme to solve the technical problem: the elevator comprises a fixed frame, two chain mechanisms, and a chain drive mechanism, the two chain mechanisms are arranged on opposite sides of the two fixed frames respectively, each chain mechanism comprises a transmission chain, a lower chain wheel rotatably installed on the fixed frame, and two upper chain wheels, the two upper chain wheels are distributed on the front and rear sides of the upper end of the fixed frame, the lower chain wheel is distributed below the two upper chain wheels, the transmission chain is wound around the lower chain wheel and the two upper chain wheels and engaged with them, the chain drive mechanism is installed in the fixed frame and distributed between the two lower chain wheels, the chain drive mechanism is in transmission connection with the two lower chain wheels, and the transmission chain between the two upper chain wheels forms the goods carrying track.

[0012] An embodiment of the present application adopts the technical scheme to solve the technical problem: the chain drive mechanism comprises a double-shaft motor and two connecting shafts, the double-shaft motor is installed in the fixed frame, the two connecting shafts are arranged on the two sides of the double-shaft motor and installed on the fixed frame through bearings in rotation with the double-shaft motor, one end of each connecting shaft is connected with the two output shafts of the double-shaft motor through a universal joint, and the other end is connected with the two lower chain wheels.

[0013] An embodiment of the present application adopts the technical scheme to solve the technical problem: each chain mechanism further comprises two limiters, the two limiters are arranged between the upper chain wheel and the lower chain wheel, the transmission chain is wound around the lower chain wheel and passes between the two limiters and then wound around the two upper chain wheels.

[0014] An embodiment of the present application adopts the technical scheme to solve the technical problem: the elevator further comprises a lifting drive mechanism and two drive gears, the two drive gears are rotatably installed on the left and right sides of the fixed frame, the lifting drive mechanism is installed on the fixed frame and in transmission connection with the two drive gears, the lifting frame comprises two support columns distributed along the left-right direction, the two support columns are provided with vertically distributed racks on the sides close to each other, the fixed frame is arranged between the two support columns, and the two drive gears are in meshing connection with the two racks respectively.

[0015] An embodiment of the present application adopts the technical scheme that the left and right sides of the fixed frame are respectively provided with guide wheel assemblies, the two guide wheel assemblies include four longitudinal guide wheels rotatably mounted on the fixed frame in the front-rear direction, the four longitudinal guide wheels are distributed in a rectangular four-corner shape, and the support column passes through the rectangle enclosed by the four longitudinal guide wheels so that the wheel surfaces of the four longitudinal guide wheels are in rolling contact with the support column.

[0016] An embodiment of the present application adopts the technical scheme that the guide wheel assembly further includes a transverse guide wheel rotatably mounted on the side wall of the fixed frame in the left-right direction and in rolling contact with the support column.

[0017] An embodiment of the present application adopts the technical scheme that the upper end of the fixed frame is provided with two strip-shaped profiles, the two strip-shaped profiles are distributed horizontally in the front-rear direction and constitute the trolley track.

[0018] An embodiment of the present application adopts the technical scheme that the trolley body is provided with a driving assembly and a plurality of lifting assemblies, each lifting assembly includes a rotating cylinder and a lifting piece, the rotating cylinder is rotatably mounted on the trolley body, the lifting piece is inserted into the rotating cylinder and is threadedly connected therewith, the tray is connected with the plurality of lifting pieces, the driving assembly is in transmission connection with the rotating cylinder and is used to drive the rotating cylinder to rotate so as to drive the lifting pieces to lift and lower to realize the lifting of the tray.

[0019] An embodiment of the present application adopts the technical scheme that the driving assembly includes a driving piece and a plurality of linkage rods, each rotating cylinder is coaxially and fixedly provided with a first gear piece, all linkage rods are rotatably mounted on the trolley body and are distributed between adjacent two rotating cylinders, the two ends of each linkage rod are respectively provided with a second gear piece, the two ends of each linkage rod extend to the positions close to the corresponding rotating cylinder and are in meshing connection with the first gear piece, the driving piece is in transmission connection with any one linkage rod, and the driving piece drives the linkage rods to rotate and drives all lifting pieces to lift and lower.

[0020] The present application has the advantages that: after the four-way trolley takes goods from the goods shelf, the four-way trolley can directly place the goods on the lifting machine and then execute the next task, and the four-way trolley does not need to move together with the lifting machine to the designated layer of the goods shelf, which is beneficial to improving the efficiency of warehouse management. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings in which:

[0022] Figure 1 Structure diagram of a warehouse system based on four-way shuttle vehicles and elevators in the embodiment;

[0023] Figure 2 Front view of a warehouse system based on four-way shuttle vehicles and elevators in the embodiment;

[0024] Figure 3 Structure diagram of a four-way shuttle vehicle driving into a trolley track in the embodiment;

[0025] Figure 4 Structure diagram of an elevator in the embodiment;

[0026] Figure 5 Structure diagram of a guide assembly in the embodiment;

[0027] Figure 6 Structure diagram of a chain mechanism in the embodiment;

[0028] Figure 7 Structure diagram of a lifting driving mechanism in the embodiment;

[0029] Figure 8 Structure diagram of a four-way shuttle vehicle in the embodiment;

[0030] Figure 9 Structure diagram of a vehicle body in the embodiment;

[0031] Figure 10 Structure diagram of a lifting assembly in the embodiment. DETAILED DESCRIPTION

[0032] This part will describe the specific embodiments of the present application in detail, and the preferred embodiments of the present application are shown in the accompanying drawings, which serve to supplement the description in the text part of the specification and enable people to intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0033] In the description of the present application, the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, within, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0034] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by the upper, lower, front, rear, left, right and the like, is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0035] In the present application, unless otherwise explicitly limited, the words "set", "install", "connect" and the like should be understood broadly, for example, they can be directly connected, or indirectly connected through an intermediate medium; can be fixedly connected, or can be detachably connected, or can be integrally formed; can be mechanically connected; can be the internal communication of two elements or the interaction relationship of two elements. The skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0036] Reference Figures 1-10 The embodiment of the present application is proposed, and the warehouse system based on the four-way shuttle vehicle and the lifting machine includes:

[0037] The multi-layered shelf 10 is provided with a passageway on each layer;

[0038] The four-way shuttle vehicle 20 includes a vehicle body 41 and a tray 42 which is liftable mounted on the vehicle body 41;

[0039] The lifting frame 30 is arranged at the front side of the shelf 10 and located at the front end of the passageway;

[0040] The lifting machine 40 is liftable mounted on the lifting frame 30, the lifting machine 40 has two goods carrying tracks 44 which are symmetrically distributed left and right and a trolley track 43 which is distributed between the two goods carrying tracks 44, and the horizontal height of the goods carrying track 44 is higher than that of the trolley track 43, the lifting machine 40 can be lifted on the lifting frame 30 so that the trolley track 43 thereon is docked with the passageway of any layer of the shelf 10;

[0041] After the four-way shuttle vehicle 20 carrying goods enters the trolley track 43 through the passageway, the tray 42 places the goods carried thereby on the goods carrying track 44, and then the four-way shuttle vehicle 20 drives out of the trolley track 43.

[0042] The shelf 10 includes multiple layers, which is a high-layer shelf 10, and the high-layer shelf 10 is the basis of intensive storage, the shelf 10 is built by metal profiles to form a lane, and the passageway is arranged in the lane, so that the four-way shuttle vehicle 20 shuttles in the lane to store and take goods.

[0043] The application sets the lifting frame 30 in front of the shelf 10, i.e. in front of the channel, and the lifting machine 40 is installed on the lifting frame 30 and can be lifted and lowered, the lifting machine 40 is provided with a trolley track 43 matched with the four-way shuttle vehicle 20, the lifting machine 40 can be lifted and lowered on the lifting frame 30 to make the trolley track 43 on the lifting machine 40 butt joint with the channel of any layer of the shelf 10, and the four-way shuttle vehicle 20 can be moved from the channel to the trolley track 43 or carried by the lifting machine 40 to realize the layer changing or warehouse delivery of the four-way shuttle vehicle 20.

[0044] When the four-way shuttle vehicle 20 completes the picking of goods on the shelf 10 and moves the loaded goods from the channel to the trolley track 43, the four-way shuttle vehicle 20 controls the lowering of the tray 42 to place the goods loaded on the four-way shuttle vehicle 20 on the goods carrying track 44, and the four-way shuttle vehicle 20 can return to the channel from the trolley track 43, and the lifting machine 40 can drive the picked goods to move along the lifting frame 30 to the bottom layer of the shelf 10, and the forklift can pick the goods on the tray 42 from the shuttle vehicle to realize the subsequent transfer of the goods.

[0045] In the embodiment, after the four-way shuttle vehicle 20 picks goods on the shelf 10, the goods can be directly placed on the lifting machine 40 to perform the next task, and the four-way shuttle vehicle 20 does not need to move together with the picked goods to the designated layer of the shelf 10 with the lifting machine 40, which is beneficial to improve the efficiency of warehouse management.

[0046] Specifically, the lifting machine 40 includes a fixed frame 401, two chain mechanisms 402, and a chain driving mechanism 403, the two chain mechanisms 402 are respectively arranged on the opposite sides of the two fixed frames 401, each chain mechanism 402 includes a transmission chain 4021, a lower sprocket 4022 rotatably installed on the fixed frame 401, and two upper sprockets 4023, the two upper sprockets 4023 are distributed on the front and rear sides of the upper end of the fixed frame 401, the lower sprocket 4022 is distributed below the two upper sprockets 4023, the transmission chain 4021 is wound around the lower sprocket 4022 and the two upper sprockets 4023 and is engaged with them, the chain driving mechanism 403 is installed in the fixed frame 401 and is distributed between the two lower sprockets 4022, the chain driving mechanism 403 is in transmission connection with the two lower sprockets 4022, and the transmission chain 4021 between the two upper sprockets 4023 constitutes the goods carrying track 44.

[0047] The four-way shuttle vehicle 20 can directly place the goods on the two transmission chains 4021 after picking the goods on the shelf 10, drive the two transmission chains 4021 to rotate through the chain driving mechanism 403, and drive the goods carried by the two transmission chains 4021 to move, so that the lifting machine 40 can butt joint with the goods conveyor to realize the rapid delivery of the goods.

[0048] Specifically, the chain driving mechanism 403 comprises a double-shaft motor 4031 and two connecting shafts 4032, the double-shaft motor 4031 is installed in the fixed frame 401, the two connecting shafts 4032 are arranged on the two sides of the double-shaft motor 4031 and are installed on the fixed frame 401 through bearings in rotation fit with the double-shaft motor 4031, one end of each of the two connecting shafts 4032 is connected with the two output shafts of the double-shaft motor 4031 through a universal joint 4033, and the other end is connected with the two lower chain wheels 4022 respectively, so that torque and motion can be reliably transmitted, the double-shaft motor 4031 can stably drive the lower chain wheels 4022, and stable conveying of goods can be realized.

[0049] As preferred, each chain mechanism 402 further comprises two limit pieces 4024, the two limit pieces 4024 are arranged between the upper chain wheels 4023 and the lower chain wheels 4022, the transmission chain 4021 passes through the two limit pieces 4024 after passing around the lower chain wheels 4022, so that the transmission chain 4021 does not occupy too much space.

[0050] In the embodiment, the lifting machine 40 further comprises a lifting driving mechanism 404 and two driving gears 405, the two driving gears 405 are rotatably installed on the left and right sides of the fixed frame 401, the lifting driving mechanism 404 is installed on the fixed frame 401 and is in driving connection with the two driving gears 405, the lifting frame 30 comprises two support columns 301 which are spaced apart along the left-right direction, the two support columns 301 are respectively provided with vertically distributed racks 302 on the sides close to each other, the fixed frame 401 is arranged between the two support columns 301, and the two driving gears 405 are respectively in meshing connection with the two racks 302.

[0051] The lifting driving mechanism 404 drives the two driving gears 405 to rotate, so that the fixed frame 401 is lifted or lowered along the racks 302.

[0052] Further, preferably, the left and right sides of the fixed frame 401 are respectively provided with guide wheel assemblies, the two guide wheel assemblies comprise four longitudinal guide wheels 406 which are rotatably installed on the fixed frame 401 along the front-rear direction, the four longitudinal guide wheels 406 are distributed in a rectangular four-corner shape, the support columns 301 pass through the rectangle formed by the four longitudinal guide wheels 406 to make the wheel surfaces of the four longitudinal guide wheels 406 in rolling contact with the support columns 301, so that the fixed frame 401 can stably climb or descend along the support columns 301.

[0053] The guide wheel assembly further comprises a lateral guide wheel 407 rotatably mounted on the side wall of the fixed frame 401 in the left-right direction and in rolling contact with the support column 301 to avoid the fixed frame 401 from shaking in the left-right and front-rear directions on the support column 301.

[0054] In the embodiment, two strip-shaped profiles 408 are mounted on the upper end of the fixed frame 401 and horizontally distributed in the front-rear direction to form the trolley track 43. As shown in the drawings, the cross section of the two strip-shaped profiles 408 is L-shaped to provide a running track for the four-way shuttle vehicle 20 and limit the four-way shuttle vehicle 20.

[0055] The lower end of the four-way shuttle vehicle 20 is provided with wheels for its shuttling and a shuttling driving mechanism for driving the wheels to rotate and walk. The mounting position, connection structure and working principle of the wheels and the shuttling driving mechanism of the four-way shuttle vehicle 20 belong to the prior art in the field, and will not be described in detail in the embodiment.

[0056] In the embodiment, the vehicle body 41 is provided with a driving assembly 411 and a plurality of lifting assemblies 412. Each lifting assembly 412 comprises a rotating cylinder 4121 and a lifting piece 4122. The rotating cylinder 4121 is rotatably mounted on the vehicle body 41. The lifting piece 4122 is inserted into the rotating cylinder 4121 and threadedly connected thereto. The tray 42 is connected to the plurality of lifting pieces 4122. The driving assembly 411 is in transmission connection with the rotating cylinder 4121 and is used to drive the rotating cylinder 4121 to rotate to drive the lifting pieces 4122 to lift and lower to realize the lifting of the tray 42.

[0057] As shown in the drawings, the vehicle body 41 is provided with four lifting assemblies 412, which are distributed in a rectangular four-corner shape. When the driving assembly 411 drives the rotating cylinder 4121 to rotate, the four lifting pieces 4122 drive the tray 42 to lift and lower.

[0058] Specifically, the driving assembly 411 comprises a driving piece 4111 and a plurality of linkage rods 4112. Each rotating cylinder 4121 is coaxially fixedly mounted with a first gear piece 4113. All linkage rods 4112 are horizontally and rotatably mounted on the vehicle body 41 and distributed between adjacent two rotating cylinders 4121. The two ends of each linkage rod 4112 are respectively provided with a second gear piece 4114, which extends to the vicinity of the corresponding rotating cylinder 4121 and is in meshing connection with the first gear piece 4113. The driving piece 4111 is in transmission connection with any one of the linkage rods 4112. The driving piece 4111 drives the linkage rods 4112 to rotate and drives all lifting pieces 4122 to lift and lower.

[0059] Referring to the drawings, the linkage rods 4112 are provided in four, and the four linkage rods 4112 are arranged between two adjacent rotating cylinders 4121 and connected in sequence, and the driving member 4111 is connected with one of the linkage rods 4112. When the rotating cylinder 4121 at the two ends of the linkage rod 4112 is driven to rotate, the rotating cylinder 4121 drives other rotating cylinders 4121 to rotate synchronously, so that one driving member 4111 drives all the lifting members 4122 to lift synchronously.

[0060] Of course, the present application is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or replacements without departing from the spirit of the present application. These equivalent modifications and replacements are all included in the scope defined by the claims of the present application.

Claims

1. A warehouse system based on four-way shuttles and lifts, characterized in that, The application relates to a multi-layered goods shelf (10) comprising: a plurality of layers, each layer being provided with a passageway; a four-way shuttle vehicle (20) comprising a vehicle body (41) and a pallet (42) which is liftable mounted on the vehicle body (41); a lifting frame (30) arranged at the front side of the goods shelf (10) and located at the front end of the passageway; a lifting machine (40) liftable mounted on the lifting frame (30), the lifting machine (40) having two goods carrying tracks (44) which are symmetrically distributed left and right and a trolley track (43) which is distributed between the two goods carrying tracks (44), and the horizontal height of the goods carrying tracks (44) is higher than that of the trolley track (43), the lifting machine (40) is liftable on the lifting frame (30) so that the trolley track (43) thereon is in butt joint with the passageway of any layer of the goods shelf (10); after the four-way shuttle vehicle (20) carrying goods enters the trolley track (43) through the passageway, the pallet (42) places the goods carried thereby on the goods carrying tracks (44), and then the four-way shuttle vehicle (20) drives out of the trolley track (43); the lifting machine (40) comprises a fixed frame (401), two chain mechanisms (402) and a chain driving mechanism (403), the two chain mechanisms (402) are arranged at the opposite sides of the two fixed frames (401) respectively, each chain mechanism (402) comprises a transmission chain (4021) and a lower chain wheel (4022) and two upper chain wheels (4023) which are rotatably mounted on the fixed frame (401), the two upper chain wheels (4023) are distributed at the front and back sides of the upper end of the fixed frame (401), the lower chain wheel (4022) is distributed below the two upper chain wheels (4023), the transmission chain (4021) is wound around the lower chain wheel (4022) and the two upper chain wheels (4023) and is engaged with the lower chain wheel (4022) and the two upper chain wheels (4023), the chain driving mechanism (403) is mounted in the fixed frame (401) and is distributed between the two lower chain wheels (4022), the chain driving mechanism (403) is in transmission connection with the two lower chain wheels (4022), and the transmission chain (4021) between the two upper chain wheels (4023) forms the goods carrying tracks (44); the lifting machine (40) further comprises a lifting driving mechanism (404) and two driving gears (405), the two driving gears (405) are rotatably mounted on the left and right sides of the fixed frame (401), the lifting driving mechanism (404) is mounted on the fixed frame (401) and is in transmission connection with the two driving gears (405), the lifting frame (30) comprises two support columns (301) which are distributed along the left and right directions and are spaced apart, the two support columns (301) are respectively provided with vertically distributed racks (302) on the sides close to each other, the fixed frame (401) is arranged between the two support columns (301), and the two driving gears (405) are respectively in meshing connection with the two racks (302).

2. The four-way shuttle vehicle and lift-based warehousing system of claim 1, wherein, The chain driving mechanism (403) comprises a double-shaft motor (4031) and two connecting shafts (4032), the double-shaft motor (4031) is installed in the fixed frame (401), the two connecting shafts (4032) are arranged on the two sides of the double-shaft motor (4031) and are installed on the fixed frame (401) through bearings in rotation fit with the double-shaft motor (4031), one end of the two connecting shafts (4032) is connected with the two output shafts of the double-shaft motor (4031) through universal couplings (4033) respectively, and the other end is connected with the two lower chain wheels (4022) respectively.

3. The four-way shuttle vehicle and lift-based warehousing system of claim 1, wherein, Each chain mechanism (402) further comprises two limit pieces (4024), the two limit pieces (4024) are arranged between the upper chain wheel (4023) and the lower chain wheel (4022), the transmission chain (4021) passes through the two limit pieces (4024) after passing around the lower chain wheel (4022) and then winds around the two upper chain wheels (4023).

4. The four-way shuttle vehicle and lift-based warehousing system of claim 1, wherein, The left and right sides of the fixed frame (401) are respectively provided with guide wheel assemblies, the two guide wheel assemblies comprise four longitudinal guide wheels (406) rotatably installed on the fixed frame (401) in the front-rear direction, the four longitudinal guide wheels (406) are distributed in a rectangular four-corner shape, and the support column (301) passes through the rectangle formed by the four longitudinal guide wheels (406) to make the wheel surfaces of the four longitudinal guide wheels (406) in rolling contact with the support column (301).

5. The four-way shuttle vehicle and lift-based warehousing system of claim 4, wherein, The guide wheel assembly further comprises a transverse guide wheel (407), the transverse guide wheel (407) is rotatably installed on the side wall of the fixed frame (401) in the left-right direction and is in rolling contact with the support column (301).

6. The four-way shuttle vehicle and lift-based warehousing system of claim 1, wherein, Two strip-shaped profiles (408) are installed on the upper end of the fixed frame (401), the two strip-shaped profiles (408) are distributed horizontally in the front-rear direction and constitute the trolley track (43).

7. The four-way shuttle vehicle and lift-based warehousing system of claim 1, wherein, The trolley body (41) is provided with a driving assembly (411) and a plurality of lifting assemblies (412), each lifting assembly (412) comprises a rotating cylinder (4121) and a lifting piece (4122), the rotating cylinder (4121) is rotatably installed on the trolley body (41), the lifting piece (4122) is inserted into the rotating cylinder (4121) and is in threaded connection with the rotating cylinder (4121), the tray (42) is connected with the plurality of lifting pieces (4122), and the driving assembly (411) is in transmission connection with the rotating cylinder (4121) and is used for driving the rotating cylinder (4121) to rotate to drive the lifting piece (4122) to lift, so as to realize the lifting of the tray (42).

8. The four-way shuttle vehicle and lift-based warehousing system of claim 7, wherein, The driving assembly (411) comprises driving members (4111) and a plurality of linkage rods (4112), each of the rotating cylinders (4121) is coaxially and fixedly provided with a first gear member (4113), all the linkage rods (4112) are horizontally and rotatably arranged on the vehicle body (41) and are distributed between adjacent two rotating cylinders (4121), the two ends of each linkage rod (4112) are provided with second gear members (4114), the two ends of each linkage rod (4112) extend to the positions close to the corresponding rotating cylinder (4121) and are engaged with the first gear members (4113), the driving members (4111) are in transmission connection with any one of the linkage rods (4112), and the driving members (4111) drive the linkage rods (4112) to rotate and drive all the lifting members (4122) to lift.

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