Tray lifting and transferring device and warehousing system

Abstract

The utility model provides a tray lifting and transferring device and a warehousing system. The tray lifting and transferring device comprises a tray forking mechanism, a tray lifting mechanism and a horizontal driving mechanism. Wherein the tray forking mechanism is used for forking a tray, the tray lifting mechanism is connected with the tray forking mechanism, and the tray lifting mechanism drives the tray forking mechanism to move up and down, so that the tray is lifted. In addition, the horizontal driving mechanism is connected with the tray lifting mechanism, the horizontal driving mechanism drives the tray lifting mechanism to move in the horizontal direction, and then the trays forked by the tray forking mechanism are moved to the conveying assembly or unloaded from the conveying assembly. The tray lifting and transferring device ensures that the trays can be accurately transferred between the conveying assembly and the ground, and the accident that the trays are prone to falling off from the conveying assembly in the prior art is avoided.

Description

Technical Field

[0001] This application relates to the field of logistics equipment technology, and in particular to a pallet lifting and transferring device and a warehousing system. Background Technology

[0002] In the logistics field, the grid pallet is a type of pallet with a grid-shaped bottom, often used to support goods.

[0003] When transferring goods placed on pallets, workers typically use forklifts to lift the pallets and move the goods. When it is necessary to move the pallet to a conveyor assembly (such as a chain conveyor or roller conveyor), the pallet is prone to falling off the conveyor assembly because workers cannot accurately determine the position and angle of the pallet.

[0004] Therefore, this application provides a pallet lifting and transferring device and a warehousing system. Utility Model Content

[0005] This application provides a pallet lifting and transferring device and a storage system for safely transferring pallets onto a conveying assembly.

[0006] In a first aspect, embodiments of this application provide a pallet lifting and transferring device, comprising:

[0007] Pallet picking mechanism, used to pick up pallets;

[0008] A pallet lifting mechanism is used to connect with the pallet fork lifting mechanism, and the pallet lifting mechanism drives the pallet fork lifting mechanism to move up and down.

[0009] A horizontal drive mechanism is connected to the pallet lifting mechanism. The horizontal drive mechanism is used to drive the pallet lifting mechanism to move along the horizontal direction to move the pallet onto the conveying assembly, or to unload the pallet from the conveying assembly.

[0010] In one feasible implementation, two pallet lifting mechanisms are provided, which are arranged opposite to each other, and the space between the two pallet lifting mechanisms is used to place the pallet.

[0011] In one feasible implementation, the pallet lifting mechanism includes a support, a lifting drive assembly, and a vertical guide assembly;

[0012] The horizontal drive mechanism is connected to the bracket, the lifting drive assembly is disposed on the bracket, the pallet fork mechanism selectively picks up the pallet, the pallet fork mechanism is slidably connected to the bracket, the lifting drive assembly drives the pallet fork mechanism to rise and fall, the vertical guide assembly is disposed on the bracket in a vertical direction, and the lifting drive assembly drives the pallet fork mechanism to rise and fall along the vertical guide assembly.

[0013] In one feasible implementation, the pallet picking mechanism includes a fixed base, fork fingers, a linear drive assembly, and a picking guide assembly;

[0014] The fixed base is slidably connected to the bracket via the vertical guide assembly. The linear drive assembly is disposed on the fixed base. The fork is connected to the linear drive assembly and is slidably connected to the fixed base via the fork-taking guide assembly. The linear drive assembly drives the fork to selectively protrude from the fixed base to pick up the tray.

[0015] In one feasible implementation, the pallet fork mechanism includes a plurality of forks and a linear drive component, wherein the plurality of forks are all connected to the linear drive component, and the linear drive component drives all the forks to extend or retract simultaneously.

[0016] Alternatively, the pallet fork mechanism includes a plurality of forks and a plurality of linear drive components, wherein the forks and the linear drive components are configured in a one-to-one correspondence, and each linear drive component drives the corresponding fork to selectively protrude from the fixed base.

[0017] In one possible implementation, the forks are configured in a straight line shape, the straight line shape of the forks being used to pick up a tray placed on a raised platform.

[0018] In one possible implementation, the forks are configured in an "L" shape, the "L"-shaped forks being used to pick up a tray placed on the ground.

[0019] In one feasible implementation, the lifting drive component is configured as a hoisting lifting component, a synchronous belt lifting component, or a transmission chain lifting component.

[0020] In one feasible implementation, the horizontal drive mechanism includes two lead screw drive assemblies and a drive motor. The two lead screw drive assemblies are respectively connected to the two pallet lifting mechanisms, and each of the two lead screw drive assemblies is connected to a drive motor. The drive motor drives the two lead screw drive assemblies to move simultaneously through a synchronization component, so as to drive the two pallet lifting mechanisms to move simultaneously. The synchronization component is a belt drive structure or a shaft drive structure.

[0021] Secondly, embodiments of this application provide a warehousing system including a conveying assembly and a pallet lifting and transferring device as described in any of the first aspects, the pallet lifting and transferring device being disposed at the end of the conveying assembly, the pallet lifting and transferring device being used to move a pallet onto the conveying assembly or to unload a pallet from the conveying assembly.

[0022] In a first aspect, embodiments of this application provide a pallet lifting and transferring device, including a pallet fork mechanism, a pallet lifting mechanism, and a horizontal drive mechanism. The pallet fork mechanism is used to pick up a pallet, and the pallet lifting mechanism is connected to the pallet fork mechanism, driving the pallet fork mechanism to move up and down, thereby raising and lowering the pallet.

[0023] In addition, the horizontal drive mechanism is connected to the pallet lifting mechanism, which drives the pallet lifting mechanism to move horizontally, thereby moving the pallet picked up by the pallet fork mechanism onto the conveying assembly, or unloading it from the conveying assembly. This pallet lifting and transfer device ensures that the pallet can be accurately rotated between the conveying assembly and the ground, avoiding the accidental drop of the pallet from the conveying assembly that occurs in the prior art.

[0024] Secondly, embodiments of this application also provide a warehousing system, including a conveying assembly and a pallet lifting and transferring device as described in any of the first aspects. The pallet lifting and transferring device is disposed at the end of the conveying assembly and is used to move pallets onto the conveying assembly or to unload pallets from the conveying assembly. Since this warehousing system includes the pallet lifting and transferring device of any of the above-described technical solutions, it possesses all the beneficial effects of the pallet lifting and transferring device of any of the above-described technical solutions, which will not be elaborated further here. Attached Figure Description

[0025] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present application, but do not constitute an undue limitation of the present invention.

[0026] In the attached diagram:

[0027] Figure 1 This is a schematic diagram of the structure of a pallet lifting and transferring device provided in one embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the structure of a pallet lifting and transferring device provided in another embodiment of this application;

[0029] Figure 3 yes Figure 1 A schematic diagram of the pallet forklift mechanism in the diagram;

[0030] Figure 4 yes Figure 3 A schematic diagram of the pallet forklift mechanism in the image.

[0031] Figure 5 This is a schematic diagram of the pallet fork lifting mechanism provided in another embodiment of this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100 - Pallet picking mechanism; 200 - Pallet lifting mechanism; 300 - Horizontal drive mechanism; 400 - Pallet; 500 - Chain conveyor; 600 - Roller conveyor; 700 - Horizontal guide mechanism;

[0034] 110-Fixed base; 120-Forked finger; 130-Linear drive assembly; 140-Forklift guide assembly; 210-Bracket; 220-Lifting drive assembly; 230-Vertical guide assembly; 310-Screw drive assembly; 320-Drive motor. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0036] In the description of the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] In the logistics field, the grid pallet is a type of pallet with a grid-shaped bottom, often used to support goods.

[0040] When transferring goods placed on pallets, workers typically use forklifts to lift the pallets and move the goods. When it is necessary to move the pallet to a conveyor assembly (such as a chain conveyor or roller conveyor), the pallet is prone to falling off the conveyor assembly because workers cannot accurately determine the position and angle of the pallet.

[0041] To safely transfer pallets to the conveying assembly, this application provides a pallet lifting and transferring device and a storage system. The solutions provided by the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0042] Figure 1 This is a schematic diagram of the structure of a pallet lifting and transferring device provided in an embodiment of this application.

[0043] Reference Figure 1 As shown, in a first aspect, embodiments of this application provide a pallet lifting and transferring device, including a pallet fork mechanism 100, a pallet lifting mechanism 200, and a horizontal drive mechanism 300. The pallet fork mechanism 100 is used to pick up a pallet 400. The pallet lifting mechanism 200 is connected to the pallet fork mechanism 100, and the pallet lifting mechanism 200 drives the pallet fork mechanism 100 to move up and down, thereby causing the pallet 400 to rise and fall. That is to say, the pallet lifting mechanism 200 is connected to the pallet 400 through the pallet fork mechanism 100 and drives the pallet 400 to rise and fall.

[0044] Additionally, the horizontal drive mechanism 300 is connected to the pallet lifting mechanism 200. The horizontal drive mechanism 300 drives the pallet lifting mechanism 200 to move horizontally, thereby moving the pallet 400 held by the pallet fork mechanism 100 onto the conveying assembly, or unloading it from the conveying assembly. Specifically, when it is necessary to move the pallet 400 from the conveying assembly to the ground, firstly, the pallet fork mechanism 100 holds the pallet 400 located on the conveying assembly. Then, the pallet lifting mechanism 200 raises the height of the pallet fork mechanism 100 to detach the pallet 400 from the conveying assembly. Next, the horizontal drive mechanism 300 drives the pallet lifting mechanism 200 to move horizontally to a designated position. Finally, the pallet lifting mechanism 200 controls the pallet fork mechanism 100 to lower its height until the pallet 400 held by the pallet fork mechanism 100 falls to the ground. It can be understood that the process of moving the pallet 400 located on the ground to the conveying assembly is the reverse of the above process. This pallet lifting and transfer device ensures that the pallet 400 can be accurately rotated between the conveying component and the ground, avoiding the accident where the pallet 400 is prone to falling off the conveying component in the prior art.

[0045] Continue to refer to Figure 1 As shown, in some examples, the pallet lifting and transferring device also includes a horizontal guide mechanism 700, which is arranged parallel to the conveying assembly. The pallet lifting mechanism 200 is connected to the horizontal guide mechanism 700, and the horizontal drive mechanism 300 drives the pallet lifting mechanism 200 to move along the horizontal guide mechanism 700, thereby transferring the pallet 400 between the conveying assembly and the ground. It is understood that the horizontal guide mechanism 700 can limit and guide the pallet lifting mechanism 200, thereby preventing the pallet lifting mechanism 200 from deviating in its direction of movement and ensuring the accuracy of the pallet lifting mechanism 200 in transferring the pallet 400.

[0046] like Figure 1 As shown, in some examples, two pallet lifting mechanisms 200 and two pallet fork lifting mechanisms 100 are provided. The pallet lifting mechanisms 200 and pallet fork lifting mechanisms 100 are arranged and connected in a one-to-one correspondence. The two pallet lifting mechanisms 200 are arranged opposite each other at a certain distance. For example, the distance between the two pallet lifting mechanisms 200 is greater than the width of a pallet 400, and the space between them is used to place the pallet 400, with the end of the conveying component located on one side of this space. It can be understood that the two pallet lifting mechanisms 200 are connected to the opposite sides of the pallet 400 through the corresponding pallet fork lifting mechanisms 100. The two pallet lifting mechanisms 200 lift and lower simultaneously, driving the pallet 400 to lift and lower. Because the two pallet lifting mechanisms 200 drive the opposite sides of the pallet 400 to lift and lower simultaneously, the stability and reliability of the pallet 400's lifting are ensured, preventing the pallet 400 from falling off the pallet lifting mechanism 200.

[0047] like Figure 1 As shown, in this example, the conveying component is a chain conveyor 500, and two pallet lifting mechanisms 200 are arranged on both sides of the chain conveyor 500. Since the positions of the two pallet lifting mechanisms 200 are relatively fixed with the placement position of the chain conveyor 500, the two pallet lifting mechanisms 200 move the pallet 400 to a fixed position on the chain conveyor 500. This avoids the accident of the pallet 400 slipping off the chain conveyor 500 due to the pallet 400 being placed at an angle when the pallet is manually placed, and also greatly improves the efficiency of placing the pallet 400 on the chain conveyor 500.

[0048] Figure 2 This is a schematic diagram of the structure of a pallet lifting and transferring device provided in another embodiment of this application.

[0049] Reference Figure 2 As shown, in these examples, the conveying assembly is configured as a roller conveyor 600, with pallet lifting and transfer devices positioned on both sides of the roller conveyor 600. The pallet lifting and transfer devices lift and move the pallet 400 onto the roller conveyor 600. It is understood that the conveying assembly can also be a belt conveyor, which will not be described in detail here.

[0050] Continue to refer to Figure 1 and Figure 2 As shown, the pallet lifting mechanism 200 includes a bracket 210, a lifting drive assembly 220, and a vertical guide assembly 230. A horizontal drive mechanism 300 is connected to the bracket 210, and the bracket 210 is slidably connected to the horizontal guide mechanism 700. The horizontal drive mechanism 300 drives the bracket 210 to move along the horizontal guide mechanism 700. The lifting drive assembly 220 is fixedly mounted on the top of the bracket 210. The vertical guide assembly 230 is vertically mounted on the bracket 210, and the pallet fork lifting mechanism 100 is connected to the vertical guide assembly 230, i.e., the pallet fork lifting mechanism 100 is slidably connected to the bracket 210 through the vertical guide assembly 230. The pallet fork lifting mechanism 100 selectively picks up the pallet 400, and the lifting drive assembly 220 drives the pallet fork lifting mechanism 100 to rise and fall along the vertical guide assembly 230, thereby controlling the rise and fall of the pallet 400. It should be noted that the side of the pallet 400 is provided with a fork-picking hole for docking with the pallet fork lifting mechanism 100.

[0051] For example, the pallet forklift mechanism 100 can be slidably connected to the bracket 210 via a pulley assembly, guide rail assembly, or slide rod assembly. The bracket 210 can be a frame structure formed by connecting profiles end to end, and its specific shape and size can be designed according to actual needs. The lifting drive assembly 220 can be one of a winch lifting assembly, a synchronous belt lifting assembly, a rack and pinion lifting assembly, or a cylinder drive assembly. The drive chain lifting assembly, winch lifting assembly, synchronous belt lifting assembly, drive chain lifting assembly, rack and pinion lifting assembly, or cylinder drive assembly are all prior art, and their detailed structures will not be described here.

[0052] like Figure 1 As shown in this embodiment, the vertical guide component 230 is configured as a guide rail slider assembly, which includes a guide rail and a slider. The guide rail is vertically mounted on the bracket 210, and the slider is fixedly mounted on the pallet lifting mechanism 100. The slider is connected to the guide rail, and the lifting drive component 220 drives the pallet lifting mechanism 100 to move along the guide rail, i.e., to move in the vertical direction. To improve the stability of the movement of the pallet lifting mechanism 100, each pallet lifting mechanism 200 includes two guide rail slider assemblies. The two guide rails are vertically mounted on both sides of the bracket 210, and the two sliders are fixedly mounted on the pallet lifting mechanism 200, with each slider connected to its corresponding guide rail.

[0053] Figure 3 yes Figure 1 A schematic diagram of the pallet fork lifting mechanism 100 in the diagram. Figure 4 yes Figure 3 A schematic diagram of the pallet fork mechanism 100 forking pallet 400.

[0054] Reference Figure 3 As shown, in some examples, the pallet picking mechanism 100 includes a fixed base 110, forks 120, a linear drive assembly 130, and a picking guide assembly 140. The fixed base 110 is slidably connected to the bracket 210 via a vertical guide assembly 230, and the forks 120 is slidably connected to the fixed base 110 via the picking guide assembly 140. The linear drive assembly 130 is fixedly mounted on the back side of the fixed base 110, and its drive end passes through the side wall of the fixed base 110 and connects to the forks 120 on the other side. The linear drive assembly 130 drives the forks 120 to selectively protrude from the fixed base 110 to pick up the pallet 400.

[0055] In some examples, the forks 120 are configured in a straight line or an L-shape. The straight forks 120 are used to pick up the tray 400 placed on a raised platform on the ground; the L-shaped forks 120 are used to pick up the tray 400 placed on the ground.

[0056] Specifically, such as Figure 3As shown, in some examples, the bottom surface of the mounting base 110 has an opening; the fork finger 120 is configured in an "L" shape, with its end extending from the opening of the mounting base 110. The opening is rectangular, and its size is larger than that of the fork finger 120. When the linear drive assembly 130 drives the fork finger 120 to move outward along the mounting base 110, the fork finger 120 can protrude from the mounting base 110, thereby allowing the fork finger 120 to extend into the tray 400 without interference between the tray 400 and the mounting base 110. Figure 4 As shown, when the linear drive assembly 130 drives the fork finger 120 to move inward along the fixed seat 110, the fork finger 120 can retract into the fixed seat 110, thereby avoiding interference between the fork finger 120 and the tray 400 and preventing the fork finger 120 from affecting the movement of the tray 400.

[0057] Figure 5 This is a schematic diagram of the structure of a pallet fork lifting mechanism 100 provided in another embodiment of this application.

[0058] Reference Figure 5 As shown, in some examples, the forked finger 120 is in the shape of a "I" and is connected to the linear drive assembly 130. The linear drive assembly 130 drives the forked finger 120 to extend out of the fixed base 110 or retract into the fixed base 110.

[0059] In some examples, the pallet fork mechanism 100 includes multiple forks 120 and a linear drive assembly 130. Each of the multiple forks 120 is connected to the linear drive assembly 130. For example, the backs of the multiple forks 120 are fixed to the same connecting plate, and the drive end of the linear drive assembly 130 is connected to the connecting plate. The linear drive assembly 130 drives all the forks 120 to extend or retract simultaneously. It is understood that when moving the pallet 400, the multiple forks 120 simultaneously extend into the pallet 400, thereby ensuring stable movement of the pallet 400 and preventing the pallet 400 from tilting or slipping.

[0060] In another embodiment, the pallet fork mechanism 100 includes multiple forks 120 and multiple linear drive components 130. Each fork 120 and linear drive component 130 is configured in a one-to-one correspondence, with each linear drive component 130 driving its corresponding fork 120 to selectively protrude from the fixed base 110. Since each fork 120 and each linear drive component 130 is configured accordingly, one linear drive component 130 can independently control the movement of one fork 120. Therefore, the pallet fork mechanism 100 can select a suitable linear drive component 130 to drive the corresponding fork 120 to extend and pick up the pallet 400 according to its size. It is understood that because each fork 120 is individually controlled by its corresponding linear drive component 130, the applicability of the pallet fork mechanism 100 is improved, enabling its application to pallets 400 of different sizes.

[0061] Reference Figure 3 and Figure 5 As shown, exemplarily, the fork guide assembly 140 can be configured as a rail slider assembly or a slider assembly. In this example, the fork guide assembly 140 is configured as a rail slider assembly, and two rail slider assemblies are provided for each fork finger 120. The two rails are respectively arranged along the width direction of the fixing base 110, and the two sliders are respectively connected to the fork finger 120 and respectively cooperate with the corresponding rails. It should be noted that the width direction of the fixing base 110 can be referred to... Figure 3 shown in the y direction.

[0062] For example, the linear drive assembly 130 can be a lead screw and nut assembly, a cylinder, a hydraulic cylinder, or an electric cylinder, as long as it can drive the fork finger 120 to move along the width direction of the fixed base 110. There are no specific limitations here. Furthermore, the structure and installation method of the lead screw and nut assembly, cylinder, hydraulic cylinder, or electric cylinder are all existing technologies and will not be described in detail here.

[0063] Reference Figure 1 and Figure 2 As shown, exemplarily, the horizontal drive mechanism 300 includes two lead screw drive assemblies 310 and one drive motor 320. The two lead screw drive assemblies 310 are positioned on both sides of the conveying assembly, and each lead screw drive assembly 310 is connected to one of the two pallet lifting mechanisms 200. Each lead screw drive assembly 310 is connected to a drive motor 320, which drives the two lead screw drive assemblies 310 to move simultaneously via a synchronization component, thereby driving the two pallet lifting mechanisms 200 to move simultaneously. Exemplarily, the synchronization component is a belt drive structure or a shaft drive structure.

[0064] Specifically, the drive motor 320 is connected to two lead screw drive assemblies 310 via a belt drive assembly. That is, the drive motor 320 drives the lead screws of the two lead screw drive assemblies 310 to rotate synchronously via the belt drive assembly, thereby driving the pallet lifting mechanisms 200 on both sides of the conveying assembly to move synchronously.

[0065] In some examples, each lead screw drive assembly 310 is provided with a horizontal guide mechanism 700 on both sides. That is, the lower end of each pallet lifting mechanism 200 is connected to two horizontal guide mechanisms 700, thereby ensuring the accuracy and smoothness of the pallet lifting mechanism 200's movement path. For example, the horizontal guide mechanism 700 is also configured as a guide rail slider assembly. The guide rail of the guide rail slider assembly is arranged along the conveying direction of the conveying assembly. The slider in the guide rail slider assembly is fixedly connected to the bottom of the pallet lifting mechanism 200, and the slider is also connected to the guide rail.

[0066] Secondly, embodiments of this application provide a warehousing system including a conveying assembly and a pallet lifting and transferring device as described in any of the first aspects. The pallet lifting and transferring device is disposed at the end of the conveying assembly and moves a pallet 400 onto the conveying assembly. Exemplarily, the conveying assembly may be a chain conveyor 500, a belt conveyor, or a roller conveyor 600.

[0067] It is readily understood that, based on the several embodiments provided in this application, those skilled in the art can combine, split, or reorganize the embodiments of this application to obtain other embodiments, none of which exceed the protection scope of this application.

[0068] The above detailed embodiments further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A pallet lifting and transfer device, characterized in that, The utility model relates to a tray fork mechanism (100) for fork tray (400), tray lifting mechanism (200) for connecting with tray fork mechanism (100), tray lifting mechanism (200) drives tray fork mechanism (100) to move up and down, horizontal drive mechanism (300) is connected with tray lifting mechanism (200), horizontal drive mechanism (300) is used for driving tray lifting mechanism (200) to move along the horizontal direction to move tray (400) to the conveying assembly or unloading tray (400) from conveying assembly. Tray lifting mechanism (200) is provided with two, two tray lifting mechanisms (200) are oppositely arranged, and two tray lifting mechanisms (200) are used for placing tray (400) between. Tray lifting mechanism (200) includes support (210), lifting drive assembly (220) and vertical guide assembly (230), horizontal drive mechanism (300) is connected with support (210), lifting drive assembly (220) is arranged on support (210), tray fork mechanism (100) selectively forks tray (400), tray fork mechanism (100) is slidably connected with support (210), lifting drive assembly (220) drives tray fork mechanism (100) to lift, vertical guide assembly (230) is arranged on support (210) along the vertical direction, lifting drive assembly (220) drives tray fork mechanism (100) to lift along vertical guide assembly (230). Tray fork mechanism (100) includes fixed seat (110), fork finger (120), linear drive assembly (130) and fork guide assembly (140), fixed seat (110) is slidably connected with support (210) through vertical guide assembly (230), linear drive assembly (130) is arranged on fixed seat (110), fork finger (120) is connected with linear drive assembly (130), and fork finger (120) is slidably connected with fixed seat (110) through fork guide assembly (140), linear drive assembly (130) drives fork finger (120) to selectively protrude from fixed seat (110) to fork tray (400).

2. The pallet lifting and transfer device according to claim 1, characterized in that Tray fork mechanism (100) includes a plurality of fork fingers (120) and a linear drive assembly (130), a plurality of fork fingers (120) are connected with one linear drive assembly (130), and one linear drive assembly (130) drives all fork fingers (120) to extend or retract simultaneously.

3. The pallet lifting and transfer device according to claim 1, characterized in that ​ ​ 4. The pallet lifting and transfer device according to claim 3, characterized in that ​ ​ 5. The pallet lifting and transfer device according to claim 4, characterized in that ​ Alternatively, the pallet fork mechanism (100) includes a plurality of forks (120) and a plurality of linear drive components (130), wherein the forks (120) and the linear drive components (130) are arranged in a one-to-one correspondence, and each linear drive component (130) drives the corresponding fork (120) to selectively protrude from the fixed base (110).

6. The pallet lifting and transfer device according to claim 4 or 5, characterized in that The fork (120) is configured in a straight line, and the straight fork (120) is used to pick up a tray (400) placed on a raised platform.

7. The pallet lifting and transfer device according to claim 4 or 5, characterized in that The fork (120) is configured in an "L" shape, and the "L" shaped fork (120) is used to pick up a tray (400) placed on the ground.

8. The pallet lifting and transfer device according to claim 3, characterized in that The lifting drive assembly (220) is configured as a hoisting lifting assembly, a synchronous belt lifting assembly, or a transmission chain lifting assembly.

9. The pallet lifting and transfer device of claim 1, wherein, The horizontal drive mechanism (300) includes two lead screw drive assemblies (310) and one drive motor (320). The two lead screw drive assemblies (310) are respectively connected to the two pallet lifting mechanisms (200), and each of the two lead screw drive assemblies (310) is connected to one drive motor (320). The drive motor (320) drives the two lead screw drive assemblies (310) to move simultaneously through a synchronization component, so as to drive the two pallet lifting mechanisms (200) to move simultaneously. The synchronization component is a belt drive structure or a shaft drive structure.

10. A warehousing system characterized by, Includes a conveying assembly and a pallet lifting and transferring device as described in any one of claims 1-9, the pallet lifting and transferring device being disposed at an end of the conveying assembly, the pallet lifting and transferring device being used to move a pallet (400) onto the conveying assembly or to unload a pallet (400) from the conveying assembly.

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