Ground goods conveying device and warehousing system

By setting a tensioning and driving mechanism at the end of the conveyor frame, combined with a rectangular tube internal circulation conveying assembly and a support guide wheel assembly, the problem of excessive height of the chain conveyor is solved, and the stability and safety of low-position pallet conveying are achieved.

CN224211689UActive Publication Date: 2026-05-08BLUESWORD INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BLUESWORD INTELLIGENT TECH CO LTD
Filing Date
2025-05-21
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The existing chain conveyor's tension wheel assembly and drive assembly are large in size, resulting in a high conveying surface, which cannot meet the requirements of some warehousing systems for low-level pallet conveying.

Method used

A ground-level cargo conveying device was designed. The tensioning component and the drive mechanism are located at the end of the conveyor frame. The circulating conveying component passes through the rectangular tube. The drive motor drives the support wheel to rotate through the transmission shaft. The tensioning component adjusts the distance between the support wheels. The support guide wheel assembly and the transition guide wheel assembly provide auxiliary support. The guide component prevents the cargo from slipping.

Benefits of technology

The overall height of the device is reduced to meet the requirements of low-position installation, improves the stability and safety of conveying, and is suitable for low-position pallet conveying.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model provides a ground-attached goods conveying device and a warehousing system, the ground-attached goods conveying device comprises three conveying mechanisms and a driving mechanism, and the three conveying mechanisms are arranged at intervals. Each conveying mechanism comprises a conveying frame, a circulating conveying assembly and a tensioning assembly. The circulating conveying assembly is arranged on the conveying frame, the conveying frame is arranged on the mounting base plane, the tensioning assembly is arranged at the end of the conveying frame and connected with the circulating conveying assembly, and the tensioning assembly is used for tensioning the circulating conveying assembly. The driving mechanism is arranged at the end of the conveying frame of one conveying mechanism, and the driving mechanism drives all the circulating conveying assemblies to act at the same time so as to convey goods. Due to the fact that the tensioning assembly is arranged at the end of the conveying frame, and the driving mechanism is arranged at the end of the conveying frame, the situation that the tensioning assembly and the driving mechanism occupy the space below the conveying frame is avoided, the overall height of the device is reduced, the device can be installed close to the ground, and the requirement for low-position goods conveying is met.
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Description

Technical Field

[0001] This application relates to the field of logistics equipment technology, and in particular to a ground-level cargo conveying device and warehousing system. Background Technology

[0002] With the rapid development of the modern logistics industry towards automation and intelligence, pallets, as standardized carriers, are increasingly widely used in warehousing and transportation.

[0003] In warehousing systems, chain conveyors are needed to transport pallets. For example... Figure 1 The existing chain conveyor includes a frame, a conveyor chain, a tensioner assembly, and a drive assembly. Both the drive assembly and the tensioner assembly are located in the middle of the frame. The conveyor chain sequentially passes around each tensioner in the tensioner assembly to ensure the conveyor chain is securely wound around the frame. The drive assembly drives the conveyor chain to rotate.

[0004] However, due to the large size of the tension wheel assembly and drive assembly of this type of chain conveyor, which occupies a lot of space in the vertical direction, the conveying surface of this type of chain conveyor is relatively high, which cannot meet the requirements of low-level pallet conveying in some warehousing systems. Therefore, this application provides a ground-level goods conveying device. Utility Model Content

[0005] This application provides a ground-level cargo conveying device and a warehousing system to meet the requirements of low-level pallet conveying in warehousing systems.

[0006] In a first aspect, embodiments of this application provide a ground-level cargo conveying device, comprising:

[0007] At least two conveying mechanisms are arranged at intervals, each conveying mechanism including a conveying frame, a circulating conveying component and a tensioning component; the circulating conveying component is disposed on the conveying frame, the conveying frame is disposed on a mounting base surface, the tensioning component is disposed at the end of the conveying frame and connected to the circulating conveying component, and the tensioning component is used to tension the circulating conveying component;

[0008] A drive mechanism is disposed on the side of the conveyor frame of one of the conveying mechanisms, and the drive mechanism drives all the circulating conveying components to operate simultaneously to transport goods.

[0009] In one possible implementation, the conveyor frame is configured as a rectangular tube, and the circulating conveying assembly is configured on the rectangular tube.

[0010] In one feasible implementation, the circulating conveying assembly includes a circulating moving component and two support wheels, one of which is disposed at one end of the conveying frame and the other is disposed on the tensioning assembly. The circulating moving component is wound around the two support wheels and passes through the inner cavity of the conveying frame. The tensioning assembly tensions the circulating moving component by adjusting the distance between the two support wheels.

[0011] The drive mechanism drives the support wheel to rotate, thereby causing the circulating moving component to rotate.

[0012] In one feasible implementation, the drive mechanism includes a drive motor and a transmission shaft, all support wheels on the side away from the tensioning assembly are connected to the transmission shaft, the drive motor is located on one side of the conveyor frame, and the drive motor drives the transmission shaft to rotate.

[0013] In one feasible implementation, the tensioning assembly includes a first tensioning member and a second tensioning member, the first tensioning member being configured with a limiting groove, the first tensioning member being fixedly disposed at the end of the conveyor frame, and the support wheel being slidably disposed in the limiting groove;

[0014] The second tensioning member is fitted onto the first tensioning member, and the second tensioning member is used to move the support wheel along the limiting groove to adjust the distance between the two support wheels.

[0015] In one possible implementation, the conveyor is configured as a rectangular tube, and the circulating moving component passes through the interior of the rectangular tube.

[0016] In one feasible implementation, the ground-level cargo conveying device further includes a support guide wheel assembly, which is disposed on the conveying frame and located inside the circulating conveying assembly. The support guide wheel assembly is used to support and convey the cargo.

[0017] In one feasible implementation, the support guide wheel assembly includes a mounting frame and a plurality of guide wheels. The mounting frame is disposed on the conveyor frame along the length direction of the conveyor frame, and the plurality of guide wheels are spaced apart on the mounting frame, with the highest point of each guide wheel being flush with the conveying surface of the circulating conveying assembly.

[0018] In one feasible implementation, the ground-level cargo conveying device further includes a transition guide wheel assembly, which is disposed at one end of the conveying frame where the tensioning assembly is located;

[0019] And / or, the transition guide wheel assembly is disposed on the same side as the support guide wheel assembly.

[0020] In one feasible implementation, the ground-level cargo conveying device further includes two guide members, which are respectively disposed outside the two outermost conveying mechanisms to limit the movement of the cargo.

[0021] Secondly, embodiments of this application provide a warehousing system including a ground-level cargo conveying device as described in any of the first aspects, the ground-level cargo conveying device being used to convey pallets.

[0022] In a first aspect, embodiments of this application provide a ground-level goods conveying device, including a conveying mechanism and a driving mechanism, wherein there are three conveying mechanisms arranged at intervals. Each conveying mechanism includes a conveying frame, a circulating conveying component, and a tensioning component. The circulating conveying component is disposed on the conveying frame, the conveying frame is disposed on a mounting base surface, and the tensioning component is disposed at the end of the conveying frame and connected to the circulating conveying component, the tensioning component being used to tension the circulating conveying component. The driving mechanism is disposed at the end of the conveying frame of one of the conveying mechanisms, and the driving mechanism drives all the circulating conveying components to operate simultaneously to convey goods. Because the tensioning component and the driving mechanism are disposed at the end of the conveying frame, the space below the conveying frame is avoided, thereby reducing the overall height of the device, allowing for ground-level installation and meeting the requirements for low-level goods conveying.

[0023] Secondly, embodiments of this application also provide a warehousing system, including a ground-level goods conveying device as described in any of the first aspects, the ground-level goods conveying device being used to convey pallets. Since this warehousing system includes the ground-level goods conveying device of any of the above-described technical solutions, it possesses all the beneficial effects of the ground-level goods conveying device of any of the above-described technical solutions, which will not be elaborated further here. Attached Figure Description

[0024] 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.

[0025] In the attached diagram:

[0026] Figure 1 This is a schematic diagram of the structure of a chain conveyor in the prior art;

[0027] Figure 2 This is a schematic diagram of the structure of a ground-level cargo conveying device provided in one embodiment of this application;

[0028] Figure 3 yes Figure 2 Side view of the ground-level cargo conveying device in the middle;

[0029] Figure 4This is a structural schematic diagram of the conveyor frame;

[0030] Figure 5 yes Figure 2 A schematic diagram of a ground-level goods conveying device transporting pallets.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100-Conveying mechanism; 200-Drive mechanism; 300-Support guide wheel assembly; 400-Transition guide wheel assembly; 500-Guide component; 600-Drive assembly; 700-Tension wheel assembly;

[0033] 110 - Conveyor frame; 120 - Circulating conveyor assembly; 130 - Tensioning assembly; 210 - Drive motor; 220 - Drive shaft; 310 - Mounting bracket; 320 - Guide wheel;

[0034] 121-Circulating moving component; 122-Support wheel; 131-First tensioning element; 132-Second tensioning element. 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] With the rapid development of the modern logistics industry towards automation and intelligence, pallets, as standardized carriers, are increasingly widely used in warehousing and transportation.

[0040] In warehousing systems, chain conveyors are needed to transport pallets. For example... Figure 1 The existing chain conveyor includes a frame, a conveyor chain, a tensioner assembly 700, and a drive assembly 600. Both the drive assembly 600 and the tensioner assembly 700 are located in the middle of the frame. The conveyor chain sequentially passes around each tensioner in the tensioner assembly 700 to ensure the conveyor chain is securely wound around the frame. The drive assembly 600 drives the conveyor chain to rotate.

[0041] However, due to the large size of the tension wheel assembly 700 and drive assembly 600 of this type of chain conveyor, which occupy a lot of space in the vertical direction, the conveying surface of this type of chain conveyor is relatively high, which cannot meet the requirements of low-level pallet conveying in some warehousing systems.

[0042] To meet the requirements of low-level pallet conveying in warehousing systems, this application provides a ground-level goods conveying device and warehousing system. The solution provided by this application will be described in detail below with reference to the accompanying drawings.

[0043] Figure 2 This is a schematic diagram of the structure of a ground-level cargo conveying device provided in one embodiment of this application; Figure 3 yes Figure 2 Side view of the ground-level cargo conveying device in the middle; Figure 4 yes Figure 2 A schematic diagram of a ground-level goods conveying device transporting pallets.

[0044] Reference Figures 2 to 4As shown, in a first aspect, embodiments of this application provide a ground-level cargo conveying device, including a conveying mechanism 100 and a driving mechanism 200, wherein there are three conveying mechanisms 100, which are spaced apart. Each conveying mechanism 100 includes a conveying frame 110, a circulating conveying assembly 120, and a tensioning assembly 130. The circulating conveying assembly 120 is disposed on the conveying frame 110, and the conveying frame 110 is fixedly disposed on a mounting base surface. Exemplarily, the mounting base surface may be the ground or the surface of a platform. The tensioning assembly 130 is disposed at the end of the conveying frame 110 and connected to the circulating conveying assembly 120, and the tensioning assembly 130 is used to tension the circulating conveying assembly 120. The driving mechanism 200 is disposed at the end of the conveying frame 110 of one of the conveying mechanisms 100. The driving mechanism 200 drives all the circulating conveying assemblies 120 to operate simultaneously to convey cargo. Because the tensioning assembly 130 and the drive mechanism 200 are located at the end of the conveyor frame 110, the tensioning assembly 130 and the drive mechanism 200 are prevented from occupying the space below the conveyor frame 110, thereby reducing the overall height of the device and enabling it to be installed in a lower space to meet the requirements of low-level transport of goods (e.g., pallets). Figure 1 and Figure 3 As can be seen from the comparison, the height of the ground-level cargo conveying device of this application is significantly lower than the height of the existing chain conveyor.

[0045] In some examples, the drive mechanism 200 is disposed on the side of the conveyor frame 110, and the lower bottom surface of the drive mechanism 200 is higher than or equal to the lower bottom surface of the conveyor frame 110.

[0046] Reference Figure 2 As shown, exemplarily, the circulating conveying assembly 120 includes a circulating moving component 121 and two support wheels 122. One support wheel 122 is rotatably disposed at one end of the conveyor frame 110, and the other support wheel 122 is disposed on a tensioning assembly 130. The circulating moving component 121 is wound around the two support wheels 122. The tensioning assembly 130 is capable of moving the position of the support wheel 122 disposed thereon, thereby changing the distance between the two support wheels 122. It is understood that the tensioning assembly 130 tensions the circulating moving component 121 by adjusting the distance between the two support wheels 122. The drive mechanism 200 drives the support wheel 122 to rotate, thereby causing the circulating moving component 121 to rotate, and the rotation of the circulating moving component 121 in turn moves the goods (e.g., pallets) on it.

[0047] For example, the circulating moving part 121 may be a synchronous chain or synchronous belt, and correspondingly, the support wheel 122 may be a synchronous sprocket or synchronous belt pulley. In some examples, to further reduce the overall height of the device, the circulating moving part 121 may be configured as a thin chain.

[0048] Figure 4 This is a structural schematic diagram of the conveyor frame 110.

[0049] Reference Figure 4 As shown, the conveyor frame 110 is a hollow rectangular tube with a rectangular cross-section. One of the support wheels 122 of the circulating conveying assembly 120 is rotatably mounted at one end of the rectangular tube, and the other support wheel 122 is mounted on the tensioning assembly 130 at the other end of the rectangular tube. The circulating moving part 121 of the circulating conveying assembly 120 passes through the internal cavity of the rectangular tube, thereby avoiding the lower half of the circulating moving part 121 from occupying the space below the rectangular tube, thus further reducing the height of the rectangular tube, i.e., reducing the overall height of the equipment.

[0050] Reference Figure 2 and Figure 3 As shown, exemplarily, the drive mechanism 200 includes a drive motor 210 and a transmission shaft 220. All support wheels 122 on the side away from the tensioning assembly 130 are connected to the transmission shaft 220. The drive motor 210 is located on one side of the conveyor frame 110 and can be connected to the transmission shaft 220 via a reducer. The drive motor 210 drives the transmission shaft 220 to rotate, and the transmission shaft 220 drives all circulating moving parts 121 to rotate via all the support wheels 122. Specifically, the lower surface of the drive motor 210 is higher than or equal to the lower surface of the conveyor frame 110 to prevent it from protruding from the conveyor frame 110, thereby reducing the height of the conveyor frame 110 and thus reducing the overall height of the equipment. Exemplarily, the drive motor 210 can be a servo motor or a DC motor with a reducer.

[0051] Continue to refer to Figure 2 As shown, exemplarily, the tensioning assembly 130 includes a first tensioning member 131 and a second tensioning member 132. There are two first tensioning members 131, both fixedly mounted on the end of the conveyor frame 110 and arranged opposite to each other. Each first tensioning member 131 is configured with a limiting groove. When the first tensioning member 131 is fixedly mounted on the end of the conveyor frame 110, the extending direction of the limiting groove is the same as the extending direction of the conveyor frame 110. The support wheel 122 is slidably disposed in the limiting groove via a rotating shaft, i.e., both ends of the rotating shaft are located in a limiting groove on one of the first tensioning members 131.

[0052] Two second tensioning members 132 are also provided, each second tensioning member 132 being fitted onto a corresponding first tensioning member 131. The second tensioning member 132 is used to move the support wheel 122 along the limiting groove, thereby adjusting the distance between the two support wheels 122. For example, the second tensioning member 132 can be configured as a stud, arranged along the extension direction of the conveyor frame 110, with its end abutting against the rotation shaft of the support wheel 122. By adjusting the length of the second tensioning member 132 entering the first tensioning member 131, the movement of the support wheel 122 is controlled, thereby adjusting the distance between the two support wheels 122.

[0053] Figure 5 yes Figure 2 A schematic diagram of a ground-level goods conveying device transporting pallets.

[0054] Reference Figure 2 and Figure 5 As shown, in some examples, the ground-level cargo conveying device further includes a support guide wheel assembly 300, of which there are at least two, and the two support guide wheel assemblies 300 are respectively disposed on the two outermost conveying mechanisms 100. Specifically, the support guide wheel assembly 300 is disposed on the conveying frame 110 and located inside the circulating conveying assembly 120, and the support guide wheel assembly 300 is used to support and convey cargo.

[0055] Understandably, the support guide wheel assembly 300 increases the conveying surface width of the circulating conveyor assembly 120, thereby enabling the conveying of goods of various sizes. For example, when conveying narrower pallets, the small support surface on both sides of the pallet on the conveyor mechanism 100 (i.e., the pallet's edges are supported by the conveyor mechanism 100) not only easily leads to deformation of the pallet edges due to concentrated stress but also increases the risk of the pallet falling. The support guide wheel assembly 300 in this device provides auxiliary support to the pallet, increasing the support surface and thus ensuring safe and stable conveying. During the conveying of goods of the target size, even if the goods partially shift, one end of the goods remains on the support guide wheel assembly 300, while the other end remains on the circulating conveyor assembly 120, allowing the goods to be conveyed normally without falling off the ground-level goods conveying device.

[0056] In some other examples, the inner and outer sides of the circulating conveyor assembly 120 are provided with supporting guide wheel assemblies 300.

[0057] For example, the support guide wheel assembly 300 includes a mounting frame 310 and a plurality of guide wheels 320. The mounting frame 310 is disposed on the conveyor frame 110 along the length direction of the conveyor frame 110 (i.e., the extension direction of the conveyor frame 110 and the conveying direction of the goods). The plurality of guide wheels 320 are spaced apart on the mounting frame 310, and the highest point of each guide wheel 320 is flush with the conveying surface of the circulating conveyor assembly 120.

[0058] Continue to refer to Figure 2 and Figure 5 As shown, the ground-level cargo conveying device also includes a transition guide wheel assembly 400, which is disposed at the end of the conveyor frame 110 where the tensioning assembly 130 is located. The transition guide wheel assembly 400 protrudes from the end of the conveyor frame 110 to transition cargo onto the circulating conveyor assembly 120. Exemplarily, in some examples, the transition guide wheel assembly 400 is disposed on the same side as the support guide wheel assembly 300; in other examples, transition guide wheel assemblies 400 are disposed on both sides of the circulating conveyor assembly 120.

[0059] For example, the transition guide wheel assembly 400 includes a transition guide wheel mounting frame 310 and a plurality of transition guide wheels 320, which are arranged sequentially at intervals on the transition guide wheel mounting frame 310, which is fixed on the conveyor frame 110.

[0060] Continue to refer to Figure 2 and Figure 5 As shown, the ground-level cargo conveying device also includes two guide members 500. The two guide members 500 are respectively arranged on the outer side of the two outermost conveying mechanisms 100, and a guide space is formed between the two guide members 500. The cargo moves along the guide space, thereby preventing the cargo from slipping off the circulating conveying component 120 of the conveying mechanism 100 during the conveying process.

[0061] Reference Figure 5 As shown, when the pallet is transported using this ground-level cargo conveying device, the pallet is located between two guide members 500, and its three legs are respectively supported on three conveying mechanisms 100.

[0062] Secondly, embodiments of this application also provide a warehousing system, including a ground-level goods conveying device as described in any of the first aspects, the ground-level goods conveying device being used to convey pallets. Since this warehousing system includes the ground-level goods conveying device of any of the above-described technical solutions, it possesses all the beneficial effects of the ground-level goods conveying device of any of the above-described technical solutions, which will not be elaborated further here.

[0063] 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.

[0064] 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 ground-level cargo conveying device, characterized in that, include: At least two spaced-apart conveying mechanisms (100), each conveying mechanism (100) including a conveying frame (110), a circulating conveying assembly (120), and a tensioning assembly (130); the circulating conveying assembly (120) is disposed on the conveying frame (110), the conveying frame (110) is disposed on a mounting base surface, the tensioning assembly (130) is disposed at the end of the conveying frame (110) and connected to the circulating conveying assembly (120), the tensioning assembly (130) is used to tension the circulating conveying assembly (120); A drive mechanism (200) is disposed at the end of the conveyor frame (110) of one of the conveying mechanisms (100), the drive mechanism (200) drives all the circulating conveying components (120) to operate simultaneously to transport goods.

2. The ground-level cargo conveying device according to claim 1, characterized in that, The conveyor frame (110) is configured as a rectangular tube, and the circulating conveyor assembly (120) is configured on the rectangular tube.

3. The ground-level cargo conveying device according to claim 2, characterized in that, The circulating conveying assembly (120) includes a circulating moving component (121) and two support wheels (122). One of the support wheels (122) is disposed at one end of the conveying frame (110), and the other support wheel (122) is disposed on the tensioning assembly (130). The circulating moving component (121) is wound around the two support wheels (122) and passes through the inner cavity of the conveying frame (110). The tensioning assembly (130) tensions the circulating moving component (121) by adjusting the distance between the two support wheels (122). The drive mechanism (200) drives the support wheel (122) to rotate, thereby driving the circulating moving part (121) to rotate.

4. The ground-level cargo conveying device according to claim 3, characterized in that, The drive mechanism (200) includes a drive motor (210) and a transmission shaft (220). All support wheels (122) on the side away from the tensioning assembly (130) are connected to the transmission shaft (220). The drive motor (210) is located on one side of the conveyor frame (110), and the drive motor (210) drives the transmission shaft (220) to rotate.

5. The ground-level cargo conveying device according to claim 3, characterized in that, The tensioning assembly (130) includes a first tensioning member (131) and a second tensioning member (132). The first tensioning member (131) is configured with a limiting groove. The first tensioning member (131) is fixedly disposed at the end of the conveyor frame (110). The support wheel (122) is slidably disposed in the limiting groove. The second tensioning member (132) is fitted onto the first tensioning member (131). The second tensioning member (132) is used to move the support wheel (122) along the limiting groove and adjust the distance between the two support wheels (122).

6. The ground-level cargo conveying device according to claim 1, characterized in that, The ground-level cargo conveying device also includes a support guide wheel assembly (300), which is disposed on the conveying frame (110) and located inside the circulating conveying assembly (120). The support guide wheel assembly (122) is used to assist in supporting the cargo.

7. The ground-level cargo conveying device according to claim 6, characterized in that, The support guide wheel assembly (300) includes a mounting frame (310) and a plurality of guide wheels (320). The mounting frame (310) is disposed on the conveyor frame (110) along the length direction of the conveyor frame (110). The plurality of guide wheels (320) are spaced apart on the mounting frame (310), and the highest point of each guide wheel (320) is flush with the conveying surface of the circulating conveyor assembly (120).

8. The ground-level cargo conveying device according to claim 6, characterized in that, The ground-level cargo conveying device also includes a transition guide wheel assembly (400), which is disposed at one end of the conveyor frame (110); And / or, the transition guide wheel assembly (400) is disposed on the same side as the support guide wheel assembly (300).

9. The ground-level cargo conveying device according to claim 1, characterized in that, The ground-level cargo conveying device also includes two guide members (500), which are respectively disposed outside the two outermost conveying mechanisms (100) to limit the movement of the cargo.

10. A warehousing system, characterized in that, Includes the ground-level cargo conveying device as described in any one of claims 1-9, the ground-level cargo conveying device being used for conveying pallets.