Logistics trolley

By using lightweight polymer materials and metal reinforcement components to construct logistics trolleys, the problems of heavy weight, labor-intensive operation, and high noise of traditional metal trolleys have been solved, achieving the effects of lightweighting and cost reduction.

WO2026002120A1PCT designated stage Publication Date: 2026-01-02SHENZHEN S F TAISEN HLDG (GRP) CO LTD
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Patent Information

Application Number
PCT/CN2025/103852
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-06-28
Filing Date
2025-06-26
Publication Date
2026-01-02

AI Technical Summary

Technical Problem

Traditional logistics trolleys are heavy, difficult to move, and noisy because their main body is made of metal.

Method used

A lightweight logistics trolley structure is formed by using rigid polymer materials or plastics with a density lower than that of metal as sidewall materials and connecting them with metal reinforcement components.

Benefits of technology

The weight of the logistics trolley and the noise during movement were reduced, which improved the ease of operation and reduced production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

Disclosed in the present application is a logistics trolley. The logistics trolley comprises a box body, wherein the box body comprises a bottom wall, a plurality of side walls and a plurality of reinforcing assemblies; the plurality of side walls are arranged around the bottom wall, a spacing is provided between every two adjacent side walls, and at least part of each side wall is a first material part; and the plurality of reinforcing assemblies are mounted on the bottom wall, each reinforcing assembly is located in the spacing between two adjacent side walls and is connected to the two adjacent side walls, and at least part of each reinforcing assembly is a metal part, the density of the first material part being less than that of the metal part. In the present application, the box body is designed to comprise the side walls and the reinforcing assemblies for connecting the side walls, the reinforcing assemblies are made of a metal, and the side walls are made of a material with a density less than that of the metal, such that the weight of the whole box body is reduced, thereby facilitating the movement of the logistics trolley.
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Description

Logistics trolley

[0001] This application claims priority to Chinese Patent Application No. 202421535011.5, filed on June 28, 2024, entitled "Logistics Trolley", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of logistics equipment technology, and in particular to a logistics trolley. Background Technology

[0003] A logistics trolley is a device used to move and handle goods within a warehouse or logistics center. Logistics trolleys are typically equipped with dividers to separate them into at least two holding spaces, allowing different types of goods to be placed separately.

[0004] In traditional technology, the main body of logistics trolleys is made of metal, which is heavy and difficult to move. Summary of the Invention

[0005] Therefore, it is necessary to address the issue of excessive weight in traditional logistics trolleys by providing a new type of logistics trolley. The technical solution is as follows:

[0006] One embodiment of this application provides a logistics trolley, including a box body. The box body includes a bottom wall, multiple side walls, and multiple reinforcing components. The multiple side walls surround the bottom wall, and there is a gap between adjacent two side walls. At least a portion of each side wall is a first material. The multiple reinforcing components are installed on the bottom wall, each reinforcing component is located within the gap between adjacent two side walls, and connects to adjacent two side walls. At least a portion of each reinforcing component is a metal part, and the metal part is metal. The density of the first material part is less than the density of the metal part.

[0007] The aforementioned logistics trolley has a box body designed to include side walls and reinforcing components for connecting the side walls. The reinforcing components are made of metal, while the side walls are made of a material with a lower density than metal, thereby reducing the overall weight of the box body and facilitating the movement of the logistics trolley.

[0008] The technical solution will be further explained below:

[0009] In one embodiment, the first material part is a rigid polymer material part.

[0010] In one embodiment, the first material portion is a plastic portion.

[0011] In one embodiment, the reinforcement component is provided with a connecting groove, the side of the sidewall is received in the connecting groove, and a first fastener for fixing the sidewall is inserted into the connecting groove.

[0012] In one embodiment, the plurality of sidewalls includes a first sidewall and two second sidewalls located on either side of the first sidewall in a first direction, the first direction being parallel to the inner wall surface of the bottom wall, and the plurality of reinforcing components includes a first reinforcing component connected between the first sidewall and the second sidewall, the first reinforcing component and the second sidewall being located on the same side of the bottom wall.

[0013] In one embodiment, the first reinforcement component includes a first connector, a second connector, and a plurality of support members connected between the first connector and the second connector. The plurality of support members are spaced apart along a second direction perpendicular to the inner wall surface of the bottom wall. The first connector is connected to the first side wall, and the second connector is connected to the second side wall.

[0014] In one embodiment, the first reinforcement component further includes a third connector located between the second connector and the second sidewall, wherein one side of the third connector is hinged to the second connector and the other side is connected to the second sidewall.

[0015] In one embodiment, the plurality of sidewalls further includes a third sidewall located between two second sidewalls and opposite to the first sidewall in a third direction, the third direction being perpendicular to the first direction and parallel to the inner wall surface of the bottom wall. The third sidewall includes two sub-walls arranged side by side along the first direction. The plurality of reinforcing components include a second reinforcing component located between adjacent second sidewalls and the sub-walls. The second reinforcing component includes a fourth connector and a fifth connector. The fourth connector is mounted on the bottom wall and connected to the second sidewall. The fifth connector is hinged to the fourth connector and connected to the sub-wall.

[0016] In one embodiment, each of the sub-walls has a metal reinforcement covering the side facing the other sub-wall.

[0017] In one embodiment, the bottom wall is at least partially a second material portion, the density of which is less than that of the metal portion.

[0018] In one embodiment, the sidewall has a perforated structure.

[0019] In one embodiment, the sidewall includes a frame and a plurality of diagonal braces connected within the frame, with two sides of the frame connected to two adjacent reinforcing components, and the hollow structure formed between two adjacent diagonal braces. Attached Figure Description

[0020] To better describe and illustrate embodiments and / or examples of this application, reference may be made to one or more accompanying drawings. Additional details or examples used to describe the drawings should not be considered as limiting the scope of any of the disclosed applications, the currently described embodiments and / or examples, or the best mode of these applications as currently understood.

[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0022] Figure 1 is a schematic diagram of the structure of the logistics trolley in the embodiment of this application;

[0023] Figure 2 is an enlarged view of part a in Figure 1;

[0024] Figure 3 is an enlarged view of part b in Figure 1;

[0025] Figure 4 is a front view of the logistics trolley in an embodiment of this application;

[0026] Figure 5 is a rear view of the logistics trolley in the embodiment of this application;

[0027] Figure 6 is a side view of the logistics trolley in the embodiment of this application;

[0028] Figure 7 is a top view of the logistics trolley in the embodiment of this application;

[0029] Figure 8 is a bottom view of the logistics trolley in the embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 100, Logistics trolley; 10, Box body; 11, Bottom wall; 12, First side wall; 121, First diagonal brace; 122, Second diagonal brace; 13, Second side wall; 131, Third diagonal brace; 14, Third side wall; 141, Sub-wall; 1411, Fourth diagonal brace; 142, Metal reinforcement component; 15, First reinforcing component; 151, First connector; 152, Second connector; 153, Support component; 154, Third connector; 155, First hinge; 16, Second reinforcing component; 161, Fourth connector; 162, Fifth connector; 163, Second hinge; 17, Connecting groove; 18, First fastener; 20, Traveling component; X, First direction; Y, Second direction; Z, Third direction. Detailed Implementation

[0031] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0032] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0033] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0034] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0035] Traditional logistics trolleys are made of metal materials such as stainless steel. Although metal materials have good structural strength and stability, they are heavy and have high production costs. In addition, even if the logistics trolley has a walking component at the bottom, the operator needs to exert a lot of effort to push it, which generates some noise during the pushing process.

[0036] In view of this, this application provides a logistics trolley, which aims to reduce the weight of the logistics trolley by designing it with a metal support frame and other rigid materials with a density less than that of metal as the main body of the logistics trolley, thereby solving the above-mentioned problems caused by the excessive weight of the logistics trolley.

[0037] The logistics trolley provided in the embodiments of this application will be described below with reference to Figures 1-8.

[0038] Referring to Figure 1, one embodiment of this application provides a logistics trolley 100, including a housing 10 and a walking component 20 connected to the bottom of the housing 10. The walking component 20 can be a structure such as a walking wheel that enables the logistics trolley 100 to move on the ground. This embodiment does not impose any restrictions on this.

[0039] The housing 10 of this embodiment includes a bottom wall 11, multiple side walls, and multiple reinforcing components. The bottom wall 11 can be rectangular or approximately rectangular in shape, or it can be a hexagon or other polygon. This embodiment uses a rectangular bottom wall 11 as an example for description, so that those skilled in the art can better understand it by referring to the accompanying drawings.

[0040] Multiple sidewalls surround the bottom wall 11, with a gap between adjacent sidewalls. When the sidewalls in this embodiment are rectangular, there are four sidewalls: a first sidewall 12, two second sidewalls 13 located on either side of the first sidewall 12 in the first direction X, and a third sidewall 14 used as a door. The first direction X is a direction parallel to the inner wall surface of the bottom wall 11. In actual application of the logistics trolley 100, the first direction X can be a horizontal direction.

[0041] Multiple reinforcing components are installed on the bottom wall 11. Each reinforcing component is located between two adjacent side walls and is used to connect the two adjacent side walls. The number of reinforcing components matches the number of side walls to connect and fix the two adjacent side walls. When the side walls include the first side wall 12, the second side wall 13, and the third side wall 14 mentioned above, the reinforcing components include two first reinforcing components 15 and two second reinforcing components 16. One first reinforcing component 15 is connected between one side of the first side wall 12 and one of the second side walls 13, and the other first reinforcing component 15 is connected between the other side of the first side wall 12 and the other second side wall 13. One second reinforcing component 16 is connected between one side of the third side wall 14 and one of the second side walls 13, and the other second reinforcing component is connected between the other side of the third side wall 14 and the other second side wall 13.

[0042] The side wall can be connected to the bottom wall 11, or the side wall and the bottom wall 11 can be connected only by the aforementioned reinforcing components, so that the side wall and the bottom wall 11 can move relative to each other to fold the box 10.

[0043] Unlike related technologies where the sidewalls of the housing 10 are entirely made of metal, in this embodiment, the sidewalls are at least partially made of a non-metallic first material and then reinforced by a reinforcing assembly. "At least partially" can be understood as part or all of the sidewall, and the reinforcing assembly is at least partially metal. The density of the first material is less than that of the metal, so that for the same volume and storage space of the housing 10, the weight of the logistics trolley 100 using this embodiment is less than that of the logistics trolley 100 in related technologies, facilitating the movement of the logistics trolley 100 and reducing noise during movement.

[0044] In some embodiments, the first material part may optionally be a rigid polymer material part. Rigid polymer materials refer to polymer materials with certain strength and rigidity, including polypropylene (PP), polycarbonate (PC), polystyrene (PS), polyphenylene ether (PPO), polyether ether ketone (PEEK), polyphenylene sulfide (PPS), etc.

[0045] The aforementioned rigid polymer materials are characterized by being lightweight and having high structural strength, which can ensure the structural stability of the sidewalls while reducing weight.

[0046] In some embodiments, the first material part may be a plastic part, that is, the sidewall material of the present application embodiment may include plastic, or the sidewall may be made entirely of plastic. Plastic may be common polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), etc., which not only have the characteristics of being lightweight and having high structural strength, but are also cheaper than metal, which can reduce the production cost of the logistics trolley 100.

[0047] Referring to Figure 2, in some embodiments, optionally, each reinforcing component of this embodiment is provided with two connecting slots 17, the two connecting slots 17 are opened one-to-one on both sides of the reinforcing component, and the sides of two adjacent side walls are accommodated one-to-one in the two connecting slots 17 of a reinforcing component, and then the sides of the two side walls are fixed by the first fastener 18 inserted in the connecting slot 17.

[0048] The length direction of the connecting groove 17 is set along the second direction Y in the figure. The connecting groove 17 is an open groove at both ends along the second direction Y, so as to facilitate the insertion of the side of the side wall. The second direction Y is the direction perpendicular to the inner wall surface of the bottom wall 11. In the actual application of the logistics trolley 100, the second direction Y can be a vertical direction.

[0049] The number of first fasteners 18 can be one or more. When the number of first fasteners 18 is more than one, the multiple first fasteners 18 are arranged at intervals along the second direction Y and installed on the side wall of the connecting groove 17.

[0050] In some embodiments, the first fastener 18 of this embodiment may optionally include a bolt or a rivet. When the first fastener 18 includes a bolt, the bolt may be inserted through at least one side or bottom edge of the connecting groove 17 and threadedly connected to the side edge of the side wall. A locking nut threadedly connected to the bolt may also be disposed on the outer wall surface of the side wall of the connecting groove 17 to improve the stability of the bolt after installation.

[0051] As shown in Figures 1 and 2, when the multiple sidewalls of this embodiment include the aforementioned first sidewall 12 and two second sidewalls 13 located on both sides of the first sidewall 12 in the first direction X, the multiple reinforcing components include a first reinforcing component 15 connected between the first sidewall 12 and the second sidewall 13. The number of first reinforcing components 15 is two, and each first reinforcing component 15 forms a group with one of the sidewalls and is located on the same side of the bottom wall 11.

[0052] In some embodiments, the first reinforcement component 15 may optionally include a first connector 151, a second connector 152, and a plurality of support members 153 connected between the first connector 151 and the second connector 152. The plurality of support members 153 are arranged at intervals along a second direction Y, and the length direction of the support members 153 may be set along a first direction X. The first connector 151 is connected to the first sidewall 12, and the second connector 152 is connected to the second sidewall 13.

[0053] In some embodiments, the first connector 151 of this embodiment is a C-shaped steel, which forms a connecting groove 17 as described above, and the two sides of the first sidewall 12 are respectively accommodated in the receiving grooves of the two C-shaped steels.

[0054] In this embodiment, the second connector 152 and the second sidewall 13 can be directly connected. In this case, the second connector 152 can be provided with a connecting groove 17 (this embodiment is not shown in the figure), or the second connector 152 and the second sidewall 13 can be indirectly connected.

[0055] As shown in Figure 1, in this embodiment, the second connector 152 is connected to the second side wall 13 through a third connector 154. The third connector 154 is located between the second connector 152 and the second side wall 13. The third connector 154 can be a C-shaped steel, so that one side of the third connector 154 forms a receiving groove for connecting the second side wall 13, and the other side of the third connector 154 is hinged to the second connector 152 through a first hinge 155, so that the two second side walls 13 can rotate relative to the first reinforcing component 15, thereby facilitating the folding of the box 10.

[0056] Referring to Figures 1, 3, and 4, in some embodiments, optionally, the plurality of sidewalls also include a third sidewall 14 located between the two second sidewalls 13 and opposite to the first sidewall 12 in the third direction Z. The third direction Z is perpendicular to the first direction X and parallel to the inner wall surface of the bottom wall 11. In actual application of the logistics trolley 100, the third direction Z is a horizontal direction.

[0057] In this embodiment, the third side wall 14 can serve as the door of the logistics trolley 100. Therefore, the third side wall 14 is designed to include two sub-walls 141 arranged side by side along the first direction X. The opening and closing of the two sub-walls 141 realizes the opening and closing of the door of the box 10.

[0058] Accordingly, the multiple reinforcement components in this embodiment include a second reinforcement component 16 located between the second sidewall 13 and the sub-wall 141. The second reinforcement component 16 has a different structure from the first reinforcement component 15. The second reinforcement component 16 includes a fourth connector 161 and a fifth connector 162. The fourth connector 161 is installed on the bottom wall 11 and connected to the second sidewall 13. The fifth connector 162 is hinged to the fourth connector 161 through a second hinge 163 and connected to the sub-wall 141.

[0059] In this embodiment, both the fourth connector 161 and the fifth connector 162 are provided with the aforementioned connecting grooves 17. In some embodiments, the fourth connector 161 and the fifth connector 162 may also be C-shaped steel. The two sides of the two second sidewalls 13 are respectively accommodated in the connecting grooves 17 of the two fourth connectors 161, and the two sides of the two sub-walls 141 are respectively accommodated in the connecting grooves 17 of the two fifth connectors 162. The sides located in the connecting grooves 17 of the fourth connector 161 and the fifth connector 162 can be locked by the second fastener (not shown in the figure).

[0060] This structure allows the two sub-walls 141 to rotate relative to the two second sidewalls 13, thereby enabling the box 10 to open and close.

[0061] In some embodiments, optionally, the side of each sub-wall 141 facing another sub-wall 141 is covered with a metal reinforcement 142. The metal reinforcement 142 may also be a C-shaped steel structure. The metal reinforcement 142 is used to improve the structural stability of the side of the sub-wall 141 facing away from the fifth connector 162.

[0062] Referring to Figures 7 and 8, in some embodiments, optionally, the bottom wall 11 of this embodiment is at least partly a second material part. For example, the first part of the bottom wall 11 is a second material part, and the second material part is made of the same material as the aforementioned first material part, such as plastic. The second part is made of metal material, and the first part and the second part are connected. The connection method can be that the second part surrounds the first part, or the first part and the second part are two plate-like structures that are hinged together, so as to facilitate the folding of the bottom wall 11.

[0063] Referring to Figures 4-6, in some embodiments, the sidewall of this embodiment may optionally have a hollow structure. For example, the sidewall may be designed as a frame and multiple diagonal braces connected within the frame, with the two sides of the frame connected to two adjacent reinforcing components one by one, and a hollow structure formed between the two adjacent diagonal braces.

[0064] As shown in Figures 1 and 5, the first sidewall 12 of this embodiment includes a first diagonal brace 121 and a second diagonal brace 122 that intersect in the length direction. There are multiple first diagonal braces 121 and second diagonal braces 122 to form a grid-like perforation.

[0065] As shown in Figures 1 and 6, the second sidewall 13 of this embodiment includes a plurality of third diagonal braces 131, which are parallel to each other and spaced apart. The length direction of the third diagonal braces 131 forms an angle with the third direction Z.

[0066] As shown in Figures 1 and 2, unlike the diagonal bracing structures of the first sidewall 12 and the second sidewall 13 mentioned above, each sub-wall 141 of the third sidewall 14 in this embodiment includes three diagonal bracing regions from top to bottom. Each diagonal bracing region includes multiple fourth diagonal bracings 1411. The inclination direction of the fourth diagonal bracing 1411 located in the middle region intersects with the length direction of the fourth diagonal bracing 1411 in the upper and lower regions. In this embodiment, "intersecting" includes perpendicular and acute angle.

[0067] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A logistics trolley, comprising a box body, characterized in that, The enclosure includes: bottom wall; Multiple sidewalls are provided around the bottom wall, with a gap between adjacent sidewalls, and each sidewall is at least partially composed of a first material portion; and Multiple reinforcing components are mounted on the bottom wall, each reinforcing component is located within a gap between two adjacent side walls and is connected to the two adjacent side walls, and at least part of each reinforcing component is a metal part. The density of the first material portion is less than the density of the metal portion.

2. The logistics trolley according to claim 1, characterized in that, The first material part is a rigid polymer material part.

3. The logistics trolley according to claim 2, characterized in that, The first material part is a plastic part.

4. The logistics trolley according to claim 1, characterized in that, The reinforcement component is provided with a connecting groove, the side of the sidewall is accommodated in the connecting groove, and a first fastener for fixing the sidewall is inserted into the connecting groove.

5. The logistics trolley according to any one of claims 1-4, characterized in that, The plurality of sidewalls includes a first sidewall and two second sidewalls located on either side of the first sidewall in a first direction, the first direction being parallel to the inner wall surface of the bottom wall. The plurality of reinforcing components includes a first reinforcing component connected between the first sidewall and the second sidewall, the first reinforcing component and the second sidewall being located on the same side of the bottom wall.

6. The logistics trolley according to claim 5, characterized in that, The first reinforcement component includes a first connector, a second connector, and a plurality of support members connected between the first connector and the second connector. The plurality of support members are spaced apart along a second direction, which is perpendicular to the inner wall surface of the bottom wall. The first connector is connected to the first side wall, and the second connector is connected to the second side wall.

7. The logistics trolley according to claim 6, characterized in that, The first reinforcement component further includes a third connector, which is located between the second connector and the second sidewall. One side of the third connector is hinged to the second connector, and the other side is connected to the second sidewall.

8. The logistics trolley according to claim 5, characterized in that, The plurality of sidewalls further includes a third sidewall located between the two second sidewalls and opposite to the first sidewall in a third direction. The third direction is perpendicular to the first direction and parallel to the inner wall surface of the bottom wall. The third sidewall includes two sub-walls arranged side by side along the first direction. The plurality of reinforcing components include a second reinforcing component located between adjacent second sidewalls and the sub-walls. The second reinforcing component includes a fourth connector and a fifth connector. The fourth connector is installed on the bottom wall and connected to the second sidewall. The fifth connector is hinged to the fourth connector and connected to the sub-wall.

9. The logistics trolley according to claim 8, characterized in that, Each of the sub-walls has a metal reinforcement covering the side facing the other sub-wall.

10. The logistics trolley according to any one of claims 1-4, characterized in that, The bottom wall is at least partially composed of a second material portion, the density of which is less than that of the metal portion.

11. The logistics trolley according to any one of claims 1-4, characterized in that, The sidewall has a hollow structure.

12. The logistics trolley according to claim 11, characterized in that, The sidewall includes a frame and multiple diagonal braces connected within the frame. The two sides of the frame are connected to two adjacent reinforcing components, and the hollow structure is formed between the two adjacent diagonal braces.

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