A frame structure and container

Abstract

A chassis structure and a container are disclosed. The chassis structure includes bottom side beams and bottom crossbeams. The bottom side beams extend along the length of the container, with two bottom side beams spaced apart. Each bottom side beam has multiple mounting seats, and the mounting seats of the two bottom side beams are positioned opposite each other. The bottom crossbeams extend along the width of the container and are mounted on two opposite mounting seats of the two bottom side beams. Each bottom crossbeam includes a composite material shell and a support core structure. The composite material shell is connected to the mounting seats and forms a receiving cavity. The support core structure is disposed in the receiving cavity and connected to the composite material shell. The chassis structure of this invention has a low specific gravity and good load-bearing performance, reducing the weight of the chassis structure and even the entire container while maintaining the strength of the chassis structure, thus contributing to weight reduction.

Description

Technical Field

[0001] This utility model relates to the field of container technology, and more specifically to a chassis structure and a container. Background Technology

[0002] As a crucial piece of logistics equipment in global trade, the number and frequency of use of shipping containers are unparalleled by other logistics equipment. With "energy conservation and environmental protection" becoming an increasingly prominent topic, the concept of lightweighting has expanded from the automotive industry to various sectors of manufacturing.

[0003] Lightweighting of container products has become a crucial research topic in the industry. As a significant component of the container frame and overall weight, the container chassis is still primarily made of steel, resulting in a high density. Furthermore, the chassis of a 20-foot standard container accounts for 25% of its weight, and the chassis of a 40-foot standard container accounts for 30%, representing a substantial proportion of the overall weight. This leads to increased costs in container production and transportation.

[0004] Therefore, a chassis structure and container are needed to at least partially solve the above problems. Utility Model Content

[0005] The utility model description section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To at least partially solve the above problems, a first aspect of this utility model provides a chassis structure for a container, the chassis structure comprising:

[0007] Bottom side beams extend along the length of the container, two bottom side beams are spaced apart, and each bottom side beam is provided with a plurality of mounting seats, with the mounting seats of the two bottom side beams being arranged opposite to each other;

[0008] A bottom crossbeam extends along the width of the container and is mounted on two opposite mounting seats of the two bottom side beams. The bottom crossbeam includes:

[0009] A composite material housing, connected to the mounting base, the composite material housing forming a receiving cavity.

[0010] A support core structure is disposed in the receiving cavity and connected to the composite material shell.

[0011] The underframe structure of this utility model has a low specific gravity, good stress performance and corrosion resistance. It reduces the weight of the underframe structure and even the entire container while maintaining the strength of the underframe structure, which is conducive to lightweighting.

[0012] Optionally, the base frame structure further includes fasteners that pass through the bottom crossbeam and the mounting base to fix the bottom crossbeam to the mounting base.

[0013] Optionally, the fastener is constructed as a bolt or a rivet.

[0014] Optionally, the mounting base has an upward-opening groove.

[0015] Optionally, the composite material shell is constructed as a tubular structure with an opening along the width direction.

[0016] Optionally, the support core structure fills the receiving cavity of the tubular structure.

[0017] Optionally, the support core structure includes a wood-filled core.

[0018] Optionally, the support core structure includes composite material ribs disposed in the tubular structure to divide the receiving cavity of the composite material shell into several cavities.

[0019] Optionally, the cross-section of the composite material shell along the vertical plane of the length direction has an open shape.

[0020] The second aspect of this utility model provides a container, the container including the chassis structure described in the first aspect above.

[0021] The container according to this utility model has similar technical effects to the underframe structure of the first aspect described above. Attached Figure Description

[0022] The following drawings, which are incorporated herein by reference as part of this invention, are provided for understanding the invention. The drawings illustrate embodiments of the invention and their descriptions, serving to explain the principles of the invention.

[0023] In the attached image:

[0024] Figure 1 This is a schematic diagram of the underframe structure of a container according to one embodiment of this application;

[0025] Figure 2 This is a cross-sectional schematic diagram of the installation state of the bottom crossbeam according to one embodiment of this application;

[0026] Figure 3 for Figure 2Schematic diagram of the installation of the bottom crossbeam in the base frame structure;

[0027] Figure 4 A cross-sectional schematic diagram of the installation state of the bottom crossbeam according to another embodiment of this application; and

[0028] Figure 5 for Figure 4 A schematic diagram of the installation of the bottom crossbeam in the base frame structure.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100: Base frame structure

[0031] 101: Floor

[0032] 110: Bottom side beam

[0033] 111: Mounting bracket

[0034] 120 / 220: Bottom crossbeam

[0035] 121: Composite material shell

[0036] 122: Supporting core structure

[0037] 123: Wooden filling core

[0038] 223: Composite material reinforcement

[0039] 224: Cavity

[0040] 125: Fasteners Detailed Implementation

[0041] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0042] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0043] The ordinal numbers such as "first" and "second" used in this invention are merely identifiers and do not have any other meaning, such as a specific order. Furthermore, for example, the term "first component" does not imply the existence of a "second component," and the term "second component" does not imply the existence of a "first component." It should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.

[0044] Now, refer to Figures 1 to 5 Exemplary embodiments according to the present invention will be described in more detail below.

[0045] This utility model provides a container, which has a base frame structure 100, a top frame structure, and a door and walls connecting the base frame structure 100 and the top frame structure. A floor 101 is laid on top of the base frame. (Refer to...) Figure 1 The underframe structure 100 includes bottom side beams 110 and bottom crossbeams 120 / 220. The bottom side beams 110 extend along the length of the container, with two bottom side beams 110 spaced apart. Each bottom side beam 110 has multiple mounting seats 111, with the mounting seats 111 of the two bottom side beams facing each other. The bottom crossbeams 120 / 220 extend along the width of the container and are mounted on two opposite mounting seats 111 of the two bottom side beams 110. Each bottom crossbeam 120 / 220 includes a composite material shell 121 and a support core structure 122. The composite material shell 121 is connected to the mounting seats 111 and forms a receiving cavity. The support core structure 122 is disposed in the receiving cavity and connected to the composite material shell 121.

[0046] The underframe structure of this utility model has a low specific gravity, good stress performance and corrosion resistance. It reduces the weight of the underframe structure and even the entire container while maintaining the strength of the underframe structure, which is conducive to lightweighting.

[0047] The mounting base 111 has an upward-opening groove, and the ends of the bottom crossbeams 120 / 220 are disposed in the groove of the mounting base 111. The base frame structure 100 also includes a fastener 125, which passes through the bottom crossbeams 120 / 220 and the mounting base 111 to fix the bottom crossbeams 120 / 220 to the mounting base 111. Specifically, refer to... Figure 1 , Figure 3 and Figure 5The mounting base 111 has a first through hole extending along its length, and the ends of the bottom crossbeams 120 / 220 also have a second through hole extending along their length. When the ends of the bottom crossbeams 120 / 220 are mounted to the mounting base 111, the first and second through holes correspond to each other. Fasteners 125 pass through both the first and second through holes, securing the bottom crossbeams 120 / 220 and the mounting base 111 together. Optionally, the fasteners 125 can be constructed as bolts or rivets. When the fasteners 125 are bolts, it is particularly convenient to disassemble and assemble the bottom crossbeams 120 / 220, facilitating later maintenance.

[0048] In one alternative embodiment, the composite material shell 121 is constructed as a tubular structure open along its width. In other words, the cross-section of the composite material shell 121 along the vertical plane containing the length of the container is constructed as a closed shape. For example, the composite material shell 121 can be a rectangular tube or a square tube. The support core structure 122 fills the receiving cavity of the tubular structure. The composite material shell 121 can be manufactured by a pultrusion process.

[0049] Among them, the support core structure 122 can also be specifically selected according to the load-bearing and weight requirements of different types of containers, which makes the design of this application more flexible and can adapt to more container types.

[0050] As one implementation, the support core structure 122 includes composite material ribs 223, which are disposed within a tubular structure to divide the receiving cavity of the composite material shell 121 into several cavities 224. For example, Figure 4 In the illustrated embodiment, the composite material rib 223 is vertically connected between the upper and lower parts of the inner side of the composite material shell 121 to divide the interior of the composite material shell 121 into two cavities 224 arranged in the width direction. In an embodiment not shown, the composite material rib 223 may also be arranged in a transverse direction or obliquely relative to the vertical and transverse directions, thereby forming multiple cavities 224.

[0051] In addition, the support core structure 122 may also include a wooden filling core 123, which fills the receiving cavity.

[0052] In one alternative implementation, reference Figure 2 and Figure 3 The composite material shell 121 is constructed as a rectangular tube, and the tube is filled with a wooden core 123. In other words, the wooden core 123 completely fills the interior of the composite material shell 121. The wooden core 123 is preferably made of balsa wood. In this embodiment, the composite material shell 121 can be made of a continuous fiber reinforced composite material with a density of 1.7 g / cm³. 3 Balsa wood has a density of 0.1 g / cm³. 3Both of these materials have a density far lower than that of steel, therefore the weight of the bottom crossbeam 120 made in this way is lighter than that of a steel bottom crossbeam. Since the composite material shell 121 and the support core structure 122 are made of different materials in this embodiment, they can be bonded together using an adhesive.

[0053] In yet another alternative implementation, refer to Figure 4 and Figure 5 The composite material shell 121 is constructed as a rectangular tube. As shown above, composite material ribs 223 connect the upper and lower parts of the inner side of the composite material shell 121, dividing the interior of the composite material shell 121 into two cavities 224 arranged along the width direction. These cavities 224 are not filled with any other material. In this embodiment, the density of the composite material shell 121 is lower than that of steel, and the cavities of the composite material shell 121 are not completely filled. Therefore, the weight of the bottom crossbeam 220 made in this way is lighter than that of a steel bottom crossbeam. In this embodiment, since the composite material shell 121 and the supporting core structure 122 can be made of the same material, the bottom crossbeam 220 can be directly formed by pultrusion.

[0054] In embodiments not shown, the above Figure 4 and Figure 5 The cavity 224 can also be filled with a wooden core 123, that is, the support core structure 122 includes both composite material ribs 223 and wooden core 123.

[0055] In other embodiments not shown, the composite material shell 121 may not be tubular; in other words, the cross-section of the composite material shell 121 along the vertical plane of the container's length direction may be open. For example, the cross-section of the composite material shell 121 may also be C-shaped, L-shaped, U-shaped, or I-shaped.

[0056] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of the invention. Features described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0057] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are only for illustrative purposes. This utility model is not limited to the above embodiments. Many variations and modifications can be made based on the teachings of this utility model, and all such variations and modifications fall within the scope of protection claimed by this utility model.

Claims

1. A frame structure for containers, characterized in that, The base frame structure includes: Bottom side beams extend along the length of the container, two bottom side beams are spaced apart, and each bottom side beam is provided with a plurality of mounting seats, with the mounting seats of the two bottom side beams being arranged opposite to each other; A bottom crossbeam extends along the width of the container and is mounted on two opposite mounting seats of the two bottom side beams. The bottom crossbeam includes: A composite material housing, connected to the mounting base, the composite material housing forming a receiving cavity. A support core structure is disposed in the receiving cavity and connected to the composite material shell.

2. The base frame structure according to claim 1, characterized in that, The base frame structure also includes fasteners that pass through the bottom crossbeam and the mounting base to fix the bottom crossbeam to the mounting base.

3. The base frame structure according to claim 2, characterized in that, The fastener is constructed as a bolt or rivet.

4. The base frame structure according to claim 1, characterized in that, The mounting base has an upward-opening groove.

5. The base frame structure according to claim 1, characterized in that, The composite material shell is constructed as a tubular structure with an opening along the width direction.

6. The base frame structure according to claim 5, characterized in that, The supporting core structure fills the receiving cavity of the tubular structure.

7. The base frame structure according to claim 6, characterized in that, The support core structure includes a wood-filled core.

8. The base frame structure according to claim 5, characterized in that, The supporting core structure includes composite material ribs, which are disposed in the tubular structure to divide the receiving cavity of the composite material shell into several cavities.

9. The base frame structure according to claim 1, characterized in that, The composite material shell has an open cross-section on the vertical plane along the length direction.

10. A container, characterized in that, The container includes a frame structure according to any one of claims 1-9.

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