Combination-type container

Abstract

A combination-type container (100), comprising side panels (10), a top panel (20), a front panel (30), a container frame (101), and at least one reinforcing rib (50), wherein the container frame (101) is made of a steel material; at least a portion of each of the side panels (10), the top panel (20), and the front panel (30) is composed of at least one composite material plate (70), the composite material plate (70) being connected to the container frame (101); and the reinforcing rib (50) comprises at least one connecting portion (50A) and protruding portions (50B), the connecting portion (50A) being connected to the composite material plate (70), and the protruding portions (50B) extending from the connecting portion (50A) away from the composite material plate (70). The combination-type container (100) is lightweight, has a low manufacturing cost, and is green and environmentally friendly; and the reinforcing rib (50) can ensure the structural strength and good water tightness of a container body.

Description

Modular container Technical Field

[0001] The present application relates to the technical field of containers, and in particular to a modular container. Background Art

[0002] The side panels, roof, and front panels of containers are subject to less stress and primarily serve to shield and seal. Currently, the side, roof, and front panels of ordinary containers are all made of thin corrugated steel sheets, which account for 40% to 50% of the total weight of the container. There are two major issues in the container manufacturing process: First, the sandblasting and anti-corrosion coating of the thin corrugated steel sheets is not only labor-intensive but also generates dust and noise, paint pollution, and a poor working environment. Second, the thin corrugated steel sheets are welded together and between them and the main components of the container. This involves a large amount of welding, and the welding fumes, harmful gases, noise, and radiation generated during the welding process can have adverse effects on the environment and personnel health. Replacing the thin corrugated steel sheets with other materials may result in insufficient box strength or poor sealing.

[0003] Therefore, a modular container is needed to at least partially solve the above problems.

[0004] Summary of the Invention

[0005] The Summary of the Invention introduces a series of simplified concepts that will be further described in the Detailed Description of the Invention. This Summary of the Invention is not intended to define the key features and essential features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] In order to at least partially solve the above-mentioned problems, the present application provides a modular container, comprising side panels, a top panel, a front panel, a box frame and at least one reinforcing rib, wherein the box frame is made of steel material; wherein at least a portion of the side panels, the top panel and the front panel is composed of at least one composite material panel, and the composite material panel is connected to the box frame; and the reinforcing rib comprises at least one connecting portion and a protrusion, wherein the connecting portion is connected to the composite material panel; the protrusion extends from the connecting portion toward a direction away from the composite material panel.

[0007] According to another aspect of the present application, another modular container is provided, which includes a box frame, side panels, a top panel, a front panel and at least one reinforcing rib, wherein the box frame is made of steel; the side panels are arranged on both sides of the box frame; the top panel is arranged at the top end of the box frame; the front panel is arranged at the front end of the box frame; at least a portion of the side panels, the top panel and / or the front panel is composed of at least one composite material panel; the reinforcing rib is connected to the composite material panel to strengthen the strength of the side panels, the top panel and / or the front panel composed of the composite material panel; wherein at least one of the composite material panels is directly connected to the box frame.

[0008] According to the present application, at least a portion of the thin corrugated steel sheets of the container's side panels, roof, and / or front panels are replaced with composite panels of lower density, resulting in a lightweight, low-cost, and environmentally friendly container. The reinforcement ribs, whose protruding portions enhance structural strength, and the connecting portions connected to the composite panels, integrally form the reinforcement ribs and composite panels, ensuring the structural strength, stiffness, and other physical properties of the container on all sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The following drawings of the present application are used as part of the present application for understanding the present application. The drawings show embodiments of the present application and their descriptions, which are used to explain the principle of the present application.

[0010] FIG1 is a perspective view of a modular container according to a first embodiment of the present application;

[0011] FIG2 is another perspective view of the container shown in FIG1 , with the composite panels removed;

[0012] FIG3 is a longitudinal sectional perspective view of the container shown in FIG1 ;

[0013] FIG4 is a schematic structural diagram of a top plate including a composite material plate and a metal plate;

[0014] FIG5 is a longitudinal cross-sectional view of the side panel and its connected structure shown in FIG1 , wherein area A is a non-joined portion of the composite material panel, and area B is a joined portion of the composite material panel;

[0015] FIG6 a is a partial enlarged view of area A in FIG5 ;

[0016] FIG6 b is a partial enlarged view of area B in FIG5 ;

[0017] FIG7 a is a longitudinal cross-sectional view of the top plate and its connected structure shown in FIG1 , wherein area C is a non-joined portion of the composite material plate, and area D is a joined portion of the composite material plate;

[0018] FIG7 b is another longitudinal cross-sectional view of the top plate and its connected structure shown in FIG1 , wherein the reinforcing ribs are bonded to the top plate;

[0019] FIG8 is a transverse cross-sectional view of the top plate and its connected structure shown in FIG1;

[0020] FIG9 is a transverse cross-sectional view of the side panel and its connected structure at the fixing member shown in FIG1 ;

[0021] FIG10 is a longitudinal cross-sectional view of the front plate and its connected structure shown in FIG1 ;

[0022] FIG11 a is a partial enlarged view of area C in FIG7 a ;

[0023] FIG11b is a partial enlarged view of area D in FIG7a;

[0024] FIG12a is a schematic diagram of a composite material plate and a reinforcing rib with an L-shaped cross section, wherein the reinforcing rib is at the joint of the composite material plate;

[0025] FIG12 b is another schematic diagram of a composite material plate and a reinforcing rib with an L-shaped cross section, wherein the reinforcing rib is located at a non-joint portion of the composite material plate;

[0026] FIG13a is a schematic diagram of a composite material plate and a C-shaped cross-section reinforcement rib, wherein the reinforcement rib is at the joint of the composite material plate;

[0027] FIG13 b is a schematic diagram of a composite material plate and a C-shaped cross-section reinforcement rib, wherein the reinforcement rib is located at a non-joint portion of the composite material plate;

[0028] FIG14a is a schematic diagram of a composite material plate and a reinforcing rib with an H-shaped cross section, wherein the reinforcing rib is located at the joint of the composite material plate;

[0029] FIG14 b is a schematic diagram of a composite material plate and a reinforcing rib with an H-shaped cross section, wherein the reinforcing rib is located at a non-joint portion of the composite material plate;

[0030] FIG15a is a schematic diagram of a composite material plate and a reinforcing rib with a rectangular cross section, wherein the reinforcing rib is at the joint of the composite material plate;

[0031] FIG15 b is a schematic diagram of a composite material plate and a reinforcing rib with a rectangular cross section, wherein the reinforcing rib is located at a non-joint portion of the composite material plate;

[0032] FIG16a is a schematic diagram of a composite material plate and a reinforcing rib with a Z-shaped cross section, wherein the reinforcing rib is at the joint of the composite material plate;

[0033] FIG16 b is a schematic diagram of a composite material plate and a reinforcing rib with a Z-shaped cross section, wherein the reinforcing rib is located at a non-joint portion of the composite material plate;

[0034] FIG17 is a schematic diagram of a composite material plate and a reinforcement rib, wherein two composite material plates are overlapped with each other;

[0035] FIG18 is a partial cross-sectional view of the top plate and top side beams;

[0036] FIG19 is a partial cross-sectional view of the top plate and the front lintel;

[0037] FIG20 is a partial cross-sectional view of the top plate and the rear end lintel;

[0038] FIG21 is a partial view of the top corner portion of the container;

[0039] Figure 22a is a test diagram of the equivalent stress of the side panel with four stiffeners;

[0040] Figure 22b is a test diagram of the equivalent stress of the side panel with five stiffeners;

[0041] Figure 22c is a test diagram of the equivalent stress of the side panel with 6 stiffeners;

[0042] Figure 22d is a test diagram of the equivalent stress of the side panel with 7 stiffeners;

[0043] Figure 22e is a test diagram of the equivalent stress of the side panel with 8 stiffeners;

[0044] FIG23a is a test diagram of the elastic deformation of the side panel with four reinforcing ribs;

[0045] FIG23 b is a test diagram of the elastic deformation of the side panel with five reinforcing ribs;

[0046] FIG23c is a test diagram of the elastic deformation of the side panel with 6 reinforcing ribs;

[0047] Figure 23d is a test diagram of the elastic deformation of the side panel with 7 reinforcing ribs;

[0048] FIG23e is a test diagram of the elastic deformation of the side panel with 8 reinforcing ribs;

[0049] Figure 24a is a test diagram of the equivalent stress of the front plate with one stiffener;

[0050] Figure 24b is a test diagram of the equivalent stress of the front plate with two stiffeners;

[0051] Figure 24c is a test diagram of the equivalent stress of the front plate with three stiffeners;

[0052] FIG25 a is a test diagram of the elastic deformation of the front plate with one reinforcing rib;

[0053] Figure 25b is a test diagram of the elastic deformation of the front plate with two reinforcing ribs;

[0054] Figure 25c is a test diagram of the elastic deformation of the front plate with three reinforcing ribs;

[0055] Figure 26a is a test diagram of the equivalent stress of the top plate with five stiffeners;

[0056] Figure 26b is a test diagram of the equivalent stress of the top plate with 6 stiffeners;

[0057] Figure 26c is a test diagram of the equivalent stress of the top plate with 7 stiffeners;

[0058] Figure 27a is a test diagram of the elastic deformation of the top plate with five reinforcing ribs;

[0059] Figure 27b is a test diagram of the elastic deformation of the top plate with 6 reinforcing ribs;

[0060] Figure 27c is a test diagram of the elastic deformation of the top plate with 7 reinforcing ribs;

[0061] FIG28 is a side view of the container shown in FIG1 ;

[0062] FIG29 is a top view of the bottom plate and bottom frame of the container shown in FIG1 ;

[0063] FIG30 a is a cross-sectional view taken along line AA in FIG29 ;

[0064] FIG30 b is a cross-sectional view taken along line BB in FIG29 ;

[0065] FIG31 is a schematic structural diagram of rivets connected to a box member and a composite material plate according to the present application;

[0066] FIG32 is a schematic structural diagram of a rivet according to the present application;

[0067] FIG33 is a transverse cross-sectional view of a top plate and its connected structures according to the present application;

[0068] FIG34 is a transverse cross-sectional view of a side panel and its connected structure according to the present application;

[0069] FIG35 is a transverse cross-sectional view of the front panel and its connected structures according to the present application;

[0070] FIG36 a is a cross-sectional view of a composite material panel and an example stiffener;

[0071] FIG36 b is a cross-sectional view of a composite material panel and another example of a reinforcing rib;

[0072] FIG36c is a cross-sectional view of a composite material plate and a reinforcing rib of another example;

[0073] FIG37 is a cross-sectional view of the front corner column and the connected structure;

[0074] FIG38 is a cross-sectional view of the rear corner column and the connected structure;

[0075] FIG39 is a cross-sectional view of an example of a top side beam and a connected structure;

[0076] Figure 40 is a cross-sectional view of the front lintel and the connected structure;

[0077] FIG41 is a cross-sectional view of yet another example of a top side beam and a connected structure.

[0078] FIG42 is a perspective view of a modular container according to a second embodiment of the present application;

[0079] FIG43 is another perspective view of the container shown in FIG42 with the composite panels removed;

[0080] FIG44 is a longitudinal sectional perspective view of the container shown in FIG42;

[0081] FIG45 is a longitudinal cross-sectional view of the side panel and its connected structure shown in FIG42;

[0082] FIG46 a is a partial enlarged view of area E in FIG45 ;

[0083] FIG46 b is a partial enlarged view of area F in FIG45 ;

[0084] FIG47 is a longitudinal cross-sectional view of the top plate and its connected structures shown in FIG42;

[0085] FIG48 is a transverse cross-sectional view of the top plate, side plates and their connected structures shown in FIG42;

[0086] FIG49 is a partial enlarged view of area G in FIG47;

[0087] FIG50 is a longitudinal sectional view of the door panel assembly and its connected structure shown in FIG42;

[0088] FIG. 51 is a side view of the container shown in FIG. 42 at the rear end. DETAILED DESCRIPTION

[0089] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, some technical features well known in the art are not described in order to avoid confusion with the present application.

[0090] In order to thoroughly understand the present application, a detailed description will be provided in the following description. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. Obviously, the implementation of the embodiments of the present application is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present application are described in detail below, but in addition to these detailed descriptions, the present application may also have other embodiments.

[0091] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0092] Ordinal numbers such as “first” and “second” cited in this application are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term “first component” itself does not imply the existence of a “second component”, and the term “second component” itself does not imply the existence of a “first component”.

[0093] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and similar expressions used in this document are for illustrative purposes only and are not limiting.

[0094] First embodiment

[0095] According to the first embodiment of the present application, a modular container 100 is provided. Referring to Figures 1 to 3, the modular container 100 mainly includes a box frame 101, side panels 10, a top panel 20, a front panel 30 and a bottom panel 110. The side panels 10 are arranged on both sides of the box frame 101 in the width direction; the top panel 20 is arranged at the top end 102 of the box frame 101; and the front panel 30 is arranged at the front end 103 of the box frame 101 in the length direction. The bottom panel 110 is arranged at the bottom end 104 of the box frame 101. The container 100 may also include a door 136. Optionally, as shown in Figure 2, the door 136 is arranged at the rear end 105 of the box frame 101 in the length direction. In this case, the rear end 105 can also be called a door end, and the container 100 is an end-opening container. Alternatively, the door 136 is provided on one side of the container frame 101 in the width direction. Specifically, the door 136 is provided on the side where the side panel 10 is located. In this case, the container 100 is a side-door container. Alternatively, the door 136 may not be provided, and the top panel 20 may be provided with an openable and closable feeding structure, and the bottom panel 110 may be provided with an openable and closable unloading structure.

[0096] The container frame 101 is rectangular in shape and is made of steel to ensure the overall structural strength of the container 100. The container frame 101 mainly includes four corner posts 40, a front lintel 106 (also known as a front roof beam), a rear lintel 107, a pair of top side beams 108 (also known as side roof beams), and a chassis 109. For an end-door container 100, the rear lintel 107 can also be known as a door roof beam. The front lintel 106 is located at the front end 103 of the container frame 101, and the rear lintel 107 is located at the rear end 105 of the container frame 101. The four corner posts 40 are located at the four corners of the container frame 101, and the two top side beams 108 are located on both sides of the container frame 101. The chassis 109 is located at the bottom end 104 of the container frame 101. The corner posts 40 are connected to adjacent components through corner fittings 111.

[0097] The four corner posts 40 include a pair of rear corner posts 41 located at the rear end 105 of the container frame 101 and a pair of front corner posts 42 located at the front end 103 of the container frame 101. For an end-door container 100, the rear corner posts 41 are also called door-end corner posts. The rear corner posts 41 are arranged parallel to the front corner posts 42. The ends of the front lintel 106 are connected to the upper ends 43 of the pair of front corner posts 42. The ends of the top side beam 108 are connected to the upper ends 43 of the front corner posts 42 and rear corner posts 41 located on the same side. The four corners of the base frame 109 are connected to the lower ends 44 of the four corner posts 40, that is, the four corners of the base frame 109 are connected to the lower ends 44 of the pair of rear corner posts 41 and the pair of front corner posts 42. A bottom plate 110 is mounted on the base frame 109 and can be made of steel, wood, bamboo composite board, and / or plastic.

[0098] Specifically, the four corner posts 40 are connected to the base frame 109 via corner fittings 111. The four corner posts 40 are connected to the top side beams 108 via corner fittings 111. The front corner post 42 is connected to the front lintel 106 via corner fittings 111. The rear corner post 41 is connected to the rear lintel 107 via corner fittings 111. The base frame 109 includes two bottom side beams 112, a front sill 113, a rear sill 114, and a plurality of bottom cross beams 115 connecting the two bottom side beams 112. The bottom plate 110 can be connected to the bottom side beams 112, the front sill 113, the rear sill 114, and the bottom cross beams 115 via fasteners 60 such as screws.

[0099] The modular container 100 according to the present application may be a 20-foot container, a 40-foot container, a 40-foot high-rise container, a 45-foot high-rise container or a railway wide-body container, etc. The size of the container 100 is not specifically limited here.

[0100] The container 100 further includes at least one composite panel 70 and at least one reinforcing rib 50. The composite panel 70 is connected to the box frame 101 and constitutes at least a portion of the side panels 10, the roof panel 20, and / or the front panel 30. The reinforcing rib 50 is connected to the composite panel 70 to reinforce the strength of the side panels 10, the roof panel 20, and / or the front panel 30 constituted by the composite panel 70. The composite panel 70 can be a flat plate. Exemplarily, at least a portion of the side panels 10, the roof panel 20, and the front panel 30 is constituted by the composite panel 70. In the illustrated embodiment, all of the side panels 10, all of the roof panel 20, and all of the front panel 30 are constituted by the composite panel 70. Alternatively, all of the side panels 10, most of the roof panel 20, and all of the front panel 30 are constituted by the composite panel 70.

[0101] If needed and / or desired, at least a portion of the top panel 20 is made of a composite material panel 70, while the side panels 10 and the front panel 30 are made of panels of other materials. Alternatively, at least a portion of the side panels 10 is made of a composite material panel 70, while the top panel 20 and the front panel 30 are made of panels of other materials. Alternatively, the front panel 30 is made of a composite material panel 70, while the top panel 20 and the side panels 10 are made of panels of other materials. The panels of other materials are metal panels, such as corrugated panels. For example, as shown in FIG4 , the top panel 20 includes a composite material panel 70 and a metal panel 71. The metal panel 71 is connected to the composite material panel 70 via reinforcing ribs 50. Alternatively, the metal panel 71 and the composite material panel 70 are overlapped, and the overlapping portions are connected by fasteners 60 or structural adhesive. The composite material panel gives the top panel advantages such as light weight, high strength, and good wear resistance, while the metal panel gives the top panel the advantage of high rigidity and can also effectively reduce the production cost of the top panel.

[0102] Optionally, all side panels 10 are composed of at least two composite panels 70; alternatively, all side panels 10 are composed of a single composite panel 70. All roof panels 20 are composed of at least two composite panels 70; alternatively, all roof panels 20 are composed of a single composite panel 70. All front panels 30 are composed of at least two composite panels 70; alternatively, all front panels 30 are composed of a single composite panel 70. This further improves the container's surface's resistance to wear, corrosion, and impact, effectively reducing maintenance costs throughout the container's lifecycle.

[0103] The position of the reinforcing rib 50 on the composite panel 70 is related to the desired strength of the side panel 10, roof panel 20, or front panel 30. The reinforcing rib 50 can be provided at the joint between two adjacent composite panels 70, or at the non-joined portion of a single composite material. For example, referring to FIG5 , at least one of the side panel 10, roof panel 20, and front panel 30 includes at least two joined composite panels 70. As shown in FIG6a , a single composite panel 70 is independently provided with at least one reinforcing rib 50, so that the composite panel 70 is strengthened at the non-joined portion. The reinforcing ribs are provided at the non-joined portion of the composite panels, and the position of the reinforcing ribs is arranged based on the desired physical properties of the container deck and is not limited by the size of the single composite panel.

[0104] As shown in Figure 6b, two adjacent composite panels 70 are close to each other with no other components between them. Furthermore, the reinforcing ribs 50 are entirely located on one side of the composite panel 70. The two adjacent composite panels 70 are connected by the reinforcing ribs 50, so that the composite panels 70 are connected and reinforced at the joint. A small installation gap exists between the two spliced ​​composite panels, making it easy to form a seal at the joint, improving sealing. For solutions with the reinforcing ribs on the outside of the composite panels, only the composite panels form the inner surface of the box at the joint. At the joint, no other components come into contact with the cargo inside the box, but rather the composite panels, fully utilizing the composite material's wear-resistant properties.

[0105] As shown in Figures 6a and 6b, the reinforcing rib 50 includes a connecting portion 50A and a protruding portion 50B. The connecting portion 50A is connected to the composite material panel 70, and the protruding portion 50B extends from the connecting portion 50A in a direction away from the composite material panel 70. Thus, multiple composite material panels 70 can be spliced ​​together using the reinforcing rib 50. At the splicing points of the composite material panels 70, the reinforcing rib 50 can ensure the watertightness and structural strength of the modular container 100.

[0106] The modular container 100 of the present application can reduce the weight of the container 100, thereby achieving lightweight construction. The structural strength, rigidity, and watertightness of the container 100 are ensured. Furthermore, the manufacturing process of the modular container 100 can significantly reduce the workload of welding, sandblasting, and anti-corrosion spraying, as well as the coating area. This simplifies the process flow and shortens the production cycle, while also avoiding the adverse effects of welding fumes and slag on human health and the environment. Furthermore, the recycling cost is low. The modular container 100 of the present application has the advantages of being green and low-carbon, lightweight and environmentally friendly, reliable and durable.

[0107] The following describes the arrangement of the composite material plate 70 and the reinforcing ribs 50 on the box frame 101 with reference to FIG. 5 and FIG. 7 a - FIG. 10 .

[0108] As shown in Figures 5 and 9, the reinforcement ribs 50 include side panel reinforcement ribs 51 extending vertically between the top side beams 108 and the bottom frame 109. The side panel reinforcement ribs 51 are connected to the composite material panels 70 that constitute the side panels 10. The side panels 10 are located inside the container frame 101, and thus, the composite material panels 70 that constitute at least a portion of the side panels 10 are located inside the container frame 101. Furthermore, the composite material panels 70 that constitute at least a portion of the side panels 10 are located on the side of the front corner posts 42, rear corner posts 41, top side beams 108, and bottom frame 109 that faces the interior of the container 100. The side panel reinforcement ribs 51 are located outside the composite material panels 70 that constitute the side panels 10. Therefore, the reinforcement ribs 50 are isolated from the interior of the container 100 by the composite material panels 70 that constitute the side panels 10. The composite material panels 70 that constitute the side panels 10 have a smooth inner surface. The composite material panels 70 constituting the side panels 10 may be in direct contact with the cargo in the box, so as to fully utilize the wear resistance of the composite material.

[0109] The composite material panels 70 that comprise the side panels 10 are directly connected to the top side beams 108, the bottom side beams 112, the front corner posts 42, and the rear corner posts 41. Each of the front corner posts 42 and the rear corner posts 41 includes a main corner post 45 and an end plate 46 that bends inward from the end of the main corner post 45 in the longitudinal direction of the box frame 101. The portion of the end plate 46 that connects to the side panels 10 is parallel to the plane of the side panels 10. The composite material panels 70 that comprise the side panels 10 are located inside and connected to the end plates 46. Optionally, the main corner posts 45 of the front corner posts 42 and the rear corner posts 41 may have different configurations.

[0110] Referring to Figure 9, in some embodiments, the top side beam 108 and / or the bottom side beam 112 each include a side beam body 116 and a recessed platform 117 that bends outward from the side beam body 116 in multiple sections. The recessed platform 117 includes a horizontally arranged first section 117a, a vertically arranged second section 117b, and a horizontally arranged third section 117c. The second section 117b is connected to the side panel 10, and the first section 117a and the third section 117c are respectively arranged at the upper and lower ends and the inner and outer sides of the second section 117b to enhance the structural strength of the second section 117b. A space is formed between the third section 117c of the top side beam 108 and the third section 117c of the bottom side beam 112 for installing the side panel reinforcement rib 51. The overall thickness of the side panel reinforcement rib 51 is less than the width of the third section 117c. By setting the multi-section bending structure of the top side beam 108 and the bottom side beam 112, the side panel 10 connected thereto is located on the inner side of the box frame 101, and the side panel reinforcement ribs 51 are prevented from protruding from the top side beam 108 or the bottom side beam 112 for easy transportation.

[0111] As shown in Figures 7a, 7b, and 8, the reinforcing ribs 50 also include roof panel reinforcing ribs 52 extending transversely between the pair of top side beams 108. The roof panel reinforcing ribs 52 are connected to the composite material panels 70 that constitute the roof panel 20. The roof panel 20 is located outside the container frame 101, and thus, the composite material panels 70 that constitute at least a portion of the roof panel 20 are located outside the container frame 101. Specifically, the composite material panels 70 that constitute at least a portion of the roof panel 20 are located on the upper side of the pair of top side beams 108, the front lintel 106, and the rear lintel 107, facing away from the interior of the container 100. The roof panel reinforcing ribs 52 are located on the inner side of the composite material panels 70 that constitute the roof panel 20. Therefore, the outer surface of the roof panel 20, formed of the composite material panels 70, is smooth, which facilitates the flow of rainwater and other substances from the roof panel 20 and prevents water accumulation.

[0112] The composite material panels 70 that comprise the roof 20 are directly connected to the roof side beams 108, the front lintel 106, and the rear lintel 107. The side beam body 116 includes an upper wing panel 119 located at the top and extending horizontally. Both the front lintel 106 and the rear lintel 107 include a lap plate 122 located at the inner ends of their respective widths. Lap plates 122 extend horizontally. The composite material panels 70 that comprise the roof 20 are connected to the upper wing panel 119 and lap plates 122. This will be described in detail below in conjunction with the roof waterproofing structure.

[0113] The reinforcement ribs 50 also include front panel reinforcement ribs 53 extending vertically between the front sill 113 and the bottom frame 109. The front panel reinforcement ribs 53 are connected to the composite material panel 70 that constitutes the front panel 30. The front panel 30 is located inside the container frame 101, and thus, the composite material panel 70 that constitutes at least a portion of the front panel 30 is located inside the container frame 101. Furthermore, the composite material panel 70 that constitutes at least a portion of the front panel 30 is located on the side of the front lintel 106, the front sill 113, and the bottom frame 109 that faces the interior of the modular container 100. The front panel reinforcement ribs 53 are located outside the composite material panel 70 that constitutes the front panel 30. Therefore, the reinforcement ribs 50 are isolated from the interior of the container 100 by the composite material panel 70 that constitutes the front panel 30. The reinforcement ribs 50 are not exposed inside the container 100, and the inner surface of the front panel 30 formed by the composite material panel 70 is smooth. The composite material panel 70 that constitutes the front panel 30 can directly contact the cargo inside the container, fully utilizing the wear-resistant properties of the composite material.

[0114] As shown in Figures 5 and 10, the composite material panel 70 that constitutes the front panel 30 is directly connected to the front lintel 106, the front sill 113, and the front corner post 42. The front corner post 42 also includes another corner post end plate 46 that bends inward from the end of the corner post body 45 in the width direction of the box frame 101. The portion of this other corner post end plate 46 that connects to the front panel 30 is parallel to the plane of the front panel 30. The composite material panel 70 that constitutes the front panel 30 is located inside the corner post end plate 46 and connected to it. The front lintel 106 includes a vertically extending outer end plate 123. The composite material panel 70 that constitutes the front panel 30 is located inside and connected to this outer end plate 123. The front sill 113 includes a vertically extending end sill body 124. The composite material panel 70 that constitutes the front panel 30 is located inside and connected to this end sill body 124.

[0115] Preferably, the composite material panel 70 forms the entire panel of the side panels 10, top panel 20, and front panel 30. Furthermore, the composite material panel 70 forming the side panels 10, top panel 20, and front panel 30 is a single, integrated composite material panel 70. This reduces the number of connection points, simplifies manufacturing, and allows for a smooth outer surface of the top panel 20, effectively improving load-bearing performance, while also ensuring smooth inner surfaces of the side panels 10 and front panel 30, fully utilizing the composite material's wear resistance.

[0116] Preferably, reinforcing ribs 50 are also spaced apart at the non-jointed areas of the composite panels 70 to ensure the strength of the container 100 surface. For example, on the outside of the side panels 10 formed from a single composite panel 70, multiple reinforcing ribs 50 are spaced apart, extending vertically between the top side beams 108 and the bottom frame 109, to enhance the strength of the entire composite panel 70 that forms the side panels 10. The number and spacing of the reinforcing ribs 50 at the non-jointed areas can be adjusted based on actual needs, as long as the required strength of the side panels 10, roof panel 20, and front panel 30 of the container 100 is maintained.

[0117] The specific structure of the reinforcing rib 50 will be described below.

[0118] The reinforcing rib 50 includes at least one connecting portion 50A and a protruding portion 50B. The connecting portion 50A is connected to the composite material plate 70, and the protruding portion 50B extends away from the connecting portion 50A. The reinforcing rib 50 has a certain structural strength, providing support for the composite material plate 70 and strengthening the structure.

[0119] When two adjacent composite panels 70 are coplanar, the connecting portion 50A is in contact with and connected to both adjacent composite panels 70. The connecting portion 50A at least partially covers the joint 80 between the two adjacent composite panels 70, and preferably covers the entire joint 80. The protruding portion 50B is connected to the connecting portion 50A at at least one end in the width direction of the reinforcing rib 50, and the connecting portion 50A is connected to the protruding portion 50B at at least one end in the width direction of the reinforcing rib 50. The end connection between the protruding portion 50B and the connecting portion allows the reinforcing rib 50 to be manufactured by bending the sheet material, simplifying the manufacturing process.

[0120] In one example, as shown in Figures 12a and 12b , the cross-sectional shape of the reinforcing rib 50 is L-shaped, i.e., the connecting portion 50A is an L-shaped first bend connected to the composite material panel 70, and the protruding portion 50B is an L-shaped second bend extending from the connecting portion 50A away from the composite material panel 70, with the protruding portion 50B being inclined or perpendicular to the connecting portion 50A. Figure 12a shows the reinforcing rib 50 at the joint of two composite material panels 70. The connecting portion 50A at least partially covers the joint 80 between the two composite material panels 70, and preferably covers the entire joint 80 to ensure the watertightness of the modular container 100.

[0121] Another example is that the protrusion 50B includes a first protrusion 50B1 and a second protrusion 50B2. The second protrusion 50B2 is connected to the first protrusion 50B1 and is spaced apart from the connecting portion 50A in the thickness direction of the reinforcing rib 50. The first protrusion 50B1 is inclined or perpendicular to the connecting portion 50A. The second protrusion 50B2 is parallel to the connecting portion 50A. The two protrusions with different extension directions make the geometric structure strength of the reinforcing rib better. It should be noted that the number of first protrusions 50B1 is not limited, for example, it can be one or two. The first protrusion 50B1 is connected to the end position or the middle position of the second protrusion 50B2. The second protrusion 50B2 is connected to the first protrusion 50B1 at at least one end in the width direction of the reinforcing rib. As shown in Figures 8 to 11, the cross-sectional shape of the reinforcing rib 50 is rectangular, U-shaped, H-shaped or Z-shaped. Specifically, the rectangular, U-shaped, H-shaped or Z-shaped straight portion is the connecting portion 50A, which is closely connected to the composite material plate 70 .

[0122] Figures 13a, 14a, 15a, and 16a illustrate the reinforcing ribs 50 at the joint of two composite panels 70. The connecting portion 50A at least partially covers the joint 80 between the two composite panels 70, and preferably covers the entire joint 80 to ensure the sealing of the modular container 100. Figures 13b, 14b, 15b, and 16b illustrate the reinforcing ribs 50 at non-joint locations of the composite panels 70.

[0123] 6b and 11b , the dimension of the connecting portion 50A in the width direction of the reinforcing rib 50 is greater than the distance between the two first protruding portions 50B1 . In other words, the connecting portion 50A extends beyond the corresponding first protruding portions 50B1 at both ends of the width direction of the reinforcing rib 50 .

[0124] Alternatively, the reinforcing rib 50 includes two connecting portions 50A spaced apart in the width direction of the reinforcing rib 50. As shown in Figures 6a and 11a, the cross-section of the reinforcing rib 50 is Ω-shaped, wherein the two legs of the Ω-shape constitute the two connecting portions 50A. The first protrusion 50B1 is inclined relative to the connecting portion 50A (as shown in Figure 6a), or the first protrusion 50B1 is perpendicular to the connecting portion 50A (as shown in Figure 11a). Preferably, the reinforcing rib 50 is used at non-joined locations of the composite panels 70, or at least one connecting portion 50A of the reinforcing rib 50 at least partially covers the joint 80 between the two composite panels 70, preferably covering the entire joint 80. The composite panels can be tightly fitted together at the joint by the same reinforcing rib, preventing outward deformation of the joined composite panels and avoiding the formation of larger gaps at the joint due to deformation. This ensures the watertightness of the modular container 100.

[0125] It should be noted that in the above embodiment, the first protruding portion 50B1, the second protruding portion 50B2, and the connecting portion 50A are integrally formed to form a single component, or the second protruding portion 50B2 and the first protruding portion 50B1 are integrally formed to form a single component. This simplifies the connection of the reinforcing rib 50 while ensuring structural strength.

[0126] The modular container 100 of the present application can use reinforcing ribs 50 of different structures in the side panels 10, top panels 20 and front panels 30 respectively. For example, reinforcing ribs 50 with an L-shaped cross-section are used in the side panels 10, and reinforcing ribs 50 with an Ω-shaped cross-section are used in the top panel 20.

[0127] The reinforcing ribs 50 are fixedly connected to the composite material panels 70 using fasteners 60 such as rivets and bolts, structural adhesive, or a combination of these methods. The composite material panels 70 are also fixedly connected to the container frame 101 using fasteners 60 such as rivets and bolts, structural adhesive, or a combination of these methods. This eliminates the need for welding on the composite material panels, significantly reducing the welding workload during container production and effectively lowering VOC (Volatile Organic Compounds) and solid waste emissions, ensuring operator and environmental friendliness.

[0128] Referring back to Figures 6a-6b, 11a, and 11b, the inner side of the protrusion 50B forms a recessed structure 54. Specifically, the inner side of the two spaced-apart first protrusions 50B1 and the second protrusion 50B2 connected to the two first protrusions 50B1 form the recessed structure 54. With this arrangement, the reinforcing rib 50 can have better structural strength, rigidity, and product economy. The connecting portion 50A includes a first connecting portion 50A1 disposed within the recessed structure 54 and / or a second connecting portion 50A2 disposed outside the recessed structure 54. For example, as shown in Figures 6a and 11a, the connecting portion 50A includes the second connecting portion 50A2 but does not include the first connecting portion 50A1; the fastener 60 connects the second connecting portion 50A2 to the composite material plate 70. As shown in FIG. 6 b and FIG. 11 b , the connection portion 50A includes a first connection portion 50A1 and two second connection portions 50A2 connected to the first connection portion 50A1 ; the fastener 60 connects at least the second connection portion 50A2 to the composite material plate 70 .

[0129] As shown in Figure 17, two adjacent composite panels 70 are overlapped, and the overlapping portions are connected via fasteners 60 or structural adhesive. Specifically, the overlapping portions are connected solely with fasteners 60 or structural adhesive, the overlapping portions are connected together with one second connection portion 50A2 of the reinforcing rib 50 with fasteners 60, and the non-overlapping portions are connected to the other second connection portion 50A2 of the reinforcing rib 50 with fasteners 60. Overlapping and securing the two spliced ​​composite panels 70 not only improves the structural strength of the composite panels 70 at the joint, but also prevents water from entering the enclosure through the joint 80, effectively reducing the risk of water ingress and improving the enclosure's waterproof performance.

[0130] Seals 72 are provided between the composite panels 70 and the box frame 101, and between the composite panels 70 and the reinforcement 50. By providing the seals 72, water outside the box can be prevented from entering the box through the gaps between the composite panels 70 and the box frame 101, and from the gaps between the composite panels 70 and the reinforcement 50, effectively reducing the risk of water entering the box. The seals 72 can be made of sealants, sealing members such as tape, etc. Specifically, seals 72 are formed by sealants or sealing members at the joints 80 between the composite panels 70, the riveted and / or screwed connections between the composite panels 70 and the box frame 101, and the riveted and / or screwed connections between the composite panels 70 and the reinforcement 50, so as to ensure the overall watertightness of the modular container 100.

[0131] The composite material panels 70 constituting the side panels 10 have their respective surfaces in contact with the box frame 101 and the reinforcing ribs 50 in approximately the same plane (see Figure 5). The composite material panels 70 constituting the top panel 20 have their respective surfaces in contact with the box frame 101 and the reinforcing ribs 50 in approximately the same plane (see Figure 7a). The composite material panels 70 constituting the front panel 30 have their respective surfaces in contact with the box frame 101 and the reinforcing ribs 50 in approximately the same plane (see Figure 5). This allows the composite material panels 70 to adhere to the corresponding portions of the box frame 101 and to each reinforcing rib 50. A seal 72 is provided between the surfaces of the composite material panels 70 and the reinforcing ribs 50. Furthermore, the seal 72 is provided between the surfaces of the composite material panels 70 and the box frame 101. When adjacent composite material panels 70 are provided and two adjacent composite material panels 70 overlap, the seal 72 can be provided between the surfaces of the adjacent composite material panels 70 at the overlap. The sealing is provided on the fitting surface, so that the sealing range is larger and the sealing effect is better, thereby more effectively preventing water outside the box from entering the box.

[0132] As shown in Figure 18, seals 72 are positioned around fasteners 60. Specifically, in the area where fasteners 60 connect the composite panel 70 to the container frame 101, seals 72 are positioned near the fasteners 60, located both on the inner side of the fasteners 60, closer to the center of the container, and on the outer side of the fasteners 60, farther from the center, thereby forming a double-sided seal. This arrangement prevents water from entering the container through the holes for fasteners 60 and the gaps between the composite panel 70 and the container frame 101, further effectively improving the watertightness of the container 100. In the area where fasteners 60 connect the composite panel 70 to the reinforcement 50, seals 72 surround the fasteners 60.

[0133] The top waterproof structure will be described in detail below with reference to FIG. 7 b and FIG. 18 to FIG. 20 .

[0134] The roof 20 is laid horizontally and is prone to water accumulation. Therefore, the top of the container 100 needs to be waterproofed as follows:

[0135] As shown in Figure 7b, the reinforcing ribs 50 are located on the inside of the top panel 20 and bonded to the ribs 50 with structural adhesive. This eliminates the need for fasteners 60 to connect the main body of the top panel 20 to the reinforcing ribs 50, eliminating the need for drilling holes in this area. This prevents water from entering the box through the fastening holes in the ribs 50, effectively preventing water leakage through the fastening holes and improving the water-tightness of the top structure of the box. Furthermore, by bonding the reinforcing ribs 50 with structural adhesive from the inside of the box, it prevents the adhesive from debonding due to water ingress, ensuring a more secure and reliable fixation between the ribs 50 and the top panel 20.

[0136] The outer periphery 21 of the top plate 20 is connected to the top 102 of the box frame 101 by a fastener 60. The top 102 of the box frame 101 has a top upper surface F11, a top side surface F12 and a top lower surface F13. The top upper surface F11 is connected to the top lower surface F13 via the top side surface F12. The top side surface F12 is located on the inner side of both the top upper surface F11 and the top lower surface F13 toward the center of the top plate 20, so that the top side surface F12 is the inner surface of the box frame 101 at the top side toward the center of the top plate 20. The fastener 60 is provided on the top upper surface F11. Further, the fastener 60 connects the box frame 101 to the outer periphery 21 of the top plate 20 at the top upper surface F11. The top side surface F12 extends vertically at an angle or vertically. With such an arrangement, the punching position of the top end 102 of the box frame 101 is located outside the box, and the fastening hole is not connected to the inside of the box, thereby preventing water outside the box from entering the box through the fastening hole at the box frame 101, effectively avoiding water leakage from the fastening hole, and further improving the anti-leakage performance of the top structure of the box.

[0137] A seal 72 is provided between the top upper surface F11 and the composite material panel 70. Seal 72 is positioned adjacent to fastener 60 and located both on the inner side of fastener 60 near the center of top panel 20 and on the outer side away from the center of top panel 20, forming a double-sided seal 72. Alternatively, seal 72 may be located on the inner side of fastener 60 near the center of top panel 20, forming a single-sided seal 72. This prevents water from entering the interior of the box through the gap between top upper surface F11 and composite material panel 70.

[0138] Specifically, as shown in Figure 18, the top side beam 108 (further referred to as the side beam body 116) includes an upper wing panel 119, a lower wing panel 120, and a side beam web 121. The upper wing panel 119 and the lower wing panel 120 both extend along a horizontal plane, or a plane perpendicular to the height direction. The side beam web 121 extends along a vertical plane, or a plane perpendicular to the width direction of the box body 100. The upper wing panel 119 is located above the lower wing panel 120, and the side beam web 121 is located inside the upper wing panel 119 and the lower wing panel 120. The top end of the side beam web 121 is integrally connected to the upper wing panel 119, and the bottom end of the side beam web 121 is integrally connected to the lower wing panel 120. The upper surface of the upper wing panel 119 serves as the top upper surface F11, the side surface of the side sill web 121 facing the center of the roof panel 20 serves as the top side surface F12, and the lower surface of the lower wing panel 120 serves as the top lower surface F13. The composite material panel 70 constituting the roof panel 20 is located above the upper wing panel 119 and connected to the upper wing panel 119 via fasteners 60. The fasteners 60 are located on the outside of the side sill web 121 facing away from the center of the roof panel 20, that is, outside the box. A seal 72 is located between the roof panel 20 and the upper wing panel 119 and is provided at least on the inside of the fasteners 60.

[0139] As shown in Figures 19 and 20, both the front lintel 106 and the rear lintel 107 include a lintel body 125 and a lintel waterproofing portion 126. The lintel waterproofing portion 126 is located on one side of the lintel body 125 near the center of the roof panel 20 and is integrally connected to the lintel body 125. Both ends of the lintel body 125 are connected to the corner posts 40. Optionally, the lintel bodies 125 of the front lintel 106 and the rear lintel 107 may have different configurations. The lintel waterproofing portion 126 is connected to the roof panel 20 via fasteners 60. The lintel waterproofing portion 126 is configured to have an upwardly opening groove 127 that extends along the width of the container 100. Specifically, the lintel waterproofing portion 126 includes a lintel base plate 128, a lintel web plate 129, and a lintel connecting plate 130 that form the groove 127. The lintel bottom plate 128 is located between the lintel web plate 129 and the lintel connecting plate 130 and is connected to the bottom end of the lintel web plate 129 and the bottom end of the lintel connecting plate 130. The lintel connecting plate 130 is connected to the lintel body 125.

[0140] The lintel waterproofing portion 126 also includes the aforementioned lap plate 122. Lap plate 122 is integrally connected to the top end of the lintel web 129 and is located on the side of the lintel web 129 facing away from the center of the top plate 20. Optionally, both the lintel base plate 128 and the lap plate 122 extend along a horizontal plane, or a plane perpendicular to the height direction. The lintel web 129 and lintel connecting plate 130 extend along a vertical plane, or a plane perpendicular to the length of the box.

[0141] The upper surface of the lap plate 122 serves as the top upper surface F11, the side surface of the lintel web 129 facing the center of the top panel 20 serves as the top side surface F12, and the lower surface of the lintel base 128 serves as the top lower surface F13. The composite material panel 70 constituting the top panel 20 is located above the lap plate 122 and connected to the lap plate 122 via fasteners 60. Fasteners 60 are located on the outside of the lintel web 129, facing away from the center of the top panel 20, that is, on the outside of the box. Seal 72 is located between the top panel 20 and the lap plate 122 and is provided at least on the inside of the fasteners 60.

[0142] As shown in FIG21 , the side beam web 121 may be provided with a through opening 131 , and in case of rain or the like, the water flowing into the groove 127 may flow out of the box body 100 through the through opening 131 , thus avoiding the formation of water accumulation in the groove 127 .

[0143] The stiffeners 50 of this application are made of sheet material. The thickness, spacing, geometry, and material of the stiffeners 50, as well as the thickness and material of the composite material panels 70, are factors that influence the physical properties of the various surfaces of the container 100. These physical properties include structural strength, stiffness, equivalent stress, and elastic deformation. The thickness and spacing of the stiffeners 50 are discussed below. It should be noted that the "surfaces" refer to the side panels 10, roof panel 20, and front panel 30 that form the interior space of the container.

[0144] Considering the varying load requirements on various sides of the container 100, the thickness and spacing of the ribs 50 are varied across the sides. Typically, the side panels 10 and front panel 30 require greater loads due to their proximity to and pressure from cargo. The top panel 20 is less susceptible to cargo pressure and therefore requires less load than the front panel 30 and side panels 10.

[0145] For example, the spacing D11 between two adjacent side panel reinforcement ribs 51 (see FIG2 ) can be 300 mm to 600 mm. For example, D11 can be 300 mm, 320 mm, 340 mm, 360 mm, 380 mm, 400 mm, 420 mm, 440 mm, 460 mm, 480 mm, 500 mm, 520 mm, 540 mm, 560 mm, 580 mm, 600 mm, or other suitable values. The thickness t11 (see FIG5 ) of the sheet material used to form the side panel reinforcement ribs 51 can be 2.5 mm to 4 mm. For example, t11 can be 2.5 mm, 2.6 mm, 2.8 mm, 3 mm, 3.2 mm, 3.4 mm, 3.6 mm, 3.8 mm, 4 mm, or other suitable values.

[0146] The spacing D12 between two adjacent top plate reinforcing ribs 52 (see FIG2 ) can be 500 mm to 800 mm. For example, D12 can be 500 mm, 520 mm, 540 mm, 560 mm, 580 mm, 600 mm, 620 mm, 640 mm, 660 mm, 680 mm, 700 mm, 720 mm, 740 mm, 770 mm, 780 mm, or 800 mm. The thickness t12 (see FIG7 b ) of the plate used to form the top plate reinforcing ribs 52 can be 2 mm to 3 mm. For example, t12 can be 2 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, or 3 mm.

[0147] The spacing D13 (see FIG2 ) between two adjacent front plate reinforcing ribs 53 can be 300 mm to 600 mm. For example, D13 can be 300 mm, 320 mm, 340 mm, 360 mm, 380 mm, 400 mm, 420 mm, 440 mm, 460 mm, 480 mm, 500 mm, 520 mm, 540 mm, 560 mm, 580 mm, or 600 mm. The thickness t13 (see FIG5 ) of the plate used to form the front plate reinforcing ribs 53 can be 2.5 mm to 4 mm. For example, t13 can be 2.5 mm, 2.6 mm, 2.8 mm, 3 mm, 3.2 mm, 3.4 mm, 3.6 mm, 3.8 mm, or 4 mm.

[0148] It should be noted that the spacing and thickness of the above-mentioned reinforcing ribs 50 are applicable to containers of different sizes, such as 20-foot containers, 40-foot containers, 40-foot high containers, etc., and are applicable to containers 100 in which at least one of the side panels 10, top panels 20 and front panels 30 is composed of composite panels 70.

[0149] Optionally, the spacing between adjacent side panel reinforcement ribs 51 and corner posts 40 is the same as or similar to the spacing between two adjacent side panel reinforcement ribs 51. Exemplarily, the spacing between adjacent side panel reinforcement ribs 51 and corner posts 40 is slightly larger than the spacing between two adjacent side panel reinforcement ribs 51. The spacing between adjacent front panel reinforcement ribs 53 and corner posts 40 is the same as or similar to the spacing between two adjacent front panel reinforcement ribs 53. Exemplarily, the spacing between adjacent front panel reinforcement ribs 53 and corner posts 40 is slightly larger than the spacing between two adjacent front panel reinforcement ribs 53. The spacing between adjacent top panel reinforcement ribs 52 and end lintels is the same as or similar to the spacing between two adjacent top panel reinforcement ribs 52. Exemplarily, the spacing between adjacent top panel reinforcement ribs 52 and corner posts 40 is slightly larger than the spacing between two adjacent top panel reinforcement ribs 52.

[0150] The plate material of the reinforcing rib 50 is preferably high-strength steel with a yield strength of 345 MPa or above. The thickness t2 of the composite material plate 70 (see Figure 5) can be 2.5 mm to 4 mm; for example, t2 can be 2.5 mm, 2.6 mm, 2.8 mm, 3 mm, 3.2 mm, 3.4 mm, 3.6 mm, 3.8 mm, 4 mm, or other suitable values. As a result, the composite material plate itself has a certain degree of deformation resistance and impact resistance. The material of the composite material plate 70 is a known composite material or the composite material provided in this application. The material of the composite material plate 70 is preferably a known composite material with a tensile strength of 248 MPa or above or the composite material provided in this application. In order to both reduce the weight of the container 100 and effectively increase the structural strength of the top plate 20, front plate 30, and side plates 10, the composite material plate 70 can preferably be made of at least one of a continuous fiber-reinforced thermoplastic composite material, a thermosetting fiber-reinforced composite material, and a thermoplastic glass fiber reinforced plastic plate. Specifically, the composite material mainly includes glass fiber and resin, and the glass fiber and resin can constitute a known composite material or the composite material provided in this application. Optionally, in the present application, the glass fiber content can be 60% to 70% by weight, such as 60%, 62%, 64%, 66%, 68%, 70%, and the like; the resin content can be 30% to 35% by weight, such as 30%, 31%, 32%, 33%, 34%, 35%, and the like. A small amount of additives can also be added to the composite material to facilitate forming a sheet material.

[0151] The various parameters of the present application are selected from the above ranges to ensure that the structural strength, stiffness and other physical properties of the container 100 can reach the expected level of container strength while using a minimum of materials, including composite materials, reinforcement ribs, etc., to reduce material consumption and lighten the weight of the container.

[0152] This application conducts a performance test on a 20-foot container in which the side panels 10 , top panel 20 and front panel 30 are all made of composite panels 70 to verify the preferred arrangement scheme of the reinforcement 50 on the side panels 10 , top panel 20 and front panel 30 .

[0153] Simulation conditions of the side panel 10: The side panel 10 adopts a whole composite material plate 70 with a thickness of 3 mm, and is provided with 4 to 8 side panel reinforcement ribs 51 with a plate thickness of 3 mm. The spacing between two adjacent side panel reinforcement ribs 51 is selected from 320 mm to 920 mm. A load of 0.6P is applied to the side panel 10.

[0154] Simulation conditions of the front plate 30: The front plate 30 adopts a whole composite material plate 70 with a thickness of 3 mm, and is provided with 1 to 3 front plate reinforcement ribs 53 with a plate thickness of 3 mm. The spacing between two adjacent front plate reinforcement ribs 53 is selected from 310 mm to 448 mm (one front plate reinforcement rib 53 is centered), and a load of 0.6P is applied to the front plate 30.

[0155] Simulation conditions of the top plate 20: The top plate 20 adopts a whole composite material plate 70 with a thickness of 3 mm, and is provided with 5 to 7 top plate reinforcement ribs 52 with a plate thickness of 2.5 mm. The spacing between two adjacent top plate reinforcement ribs 52 is selected from 510 mm to 760 mm. A load of 300 kg is applied to the area of ​​300 mm × 600 mm of the top plate 20.

[0156] The equivalent stress and elastic deformation of the side panels 10, the front panel 30 and the top panel 20 were tested. The test results are shown in Figures 22a to 27c.

[0157] Figures 22a to 22e show the equivalent stress of the side panel 10 with different numbers of reinforcing ribs 50, and Figures 23a to 23e show the elastic deformation of the side panel 10 with different numbers of reinforcing ribs 50. The side panel 10 in Figures 22a and 23a is provided with four side panel reinforcing ribs 51 with a spacing of 920 mm, the side panel 10 in Figures 22b and 23b is provided with five side panel reinforcing ribs 51 with a spacing of 720 mm, the side panel 10 in Figures 22c and 23c is provided with six side panel reinforcing ribs 51 with a spacing of 640 mm, the side panel 10 in Figures 22d and 23d is provided with seven side panel reinforcing ribs 51 with a spacing of 420 mm, and the side panel 10 in Figures 22e and 23e is provided with eight side panel reinforcing ribs 51 with a spacing of 320 mm.

[0158] Figures 24a to 24c show the equivalent stress of the front plate 30 with different numbers of reinforcing ribs 50, and Figures 25a to 25c show the elastic deformation of the front plate 30 with different numbers of reinforcing ribs 50. The front plate 30 in Figures 24a and 25a has one front plate reinforcing rib 53 centered on the front plate, the front plate 30 in Figures 24b and 25b has two front plate reinforcing ribs 53 spaced 448 mm apart, and the front plate 30 in Figures 24c and 25c has three front plate reinforcing ribs 53 spaced 310 mm apart.

[0159] Figures 26a to 26c show the equivalent stress of the top plate 20 with different numbers of reinforcing ribs 50, and Figures 27a to 27c show the elastic deformation of the top plate 20 with different numbers of reinforcing ribs 50. The top plate 20 in Figures 26a and 27a is provided with five top plate reinforcing ribs 52 with a spacing of 760 mm, the top plate 20 in Figures 26b and 27b is provided with six top plate reinforcing ribs 52 with a spacing of 610 mm, and the top plate 20 in Figures 26c and 27c is provided with seven top plate reinforcing ribs 52 with a spacing of 510 mm.

[0160] It should be noted that, in theory, an equivalent stress exceeding 550 MPa indicates that the area has yielded. When the equivalent stress exceeds 550 MPa, the larger the red area in the figure, the larger the yield area and the weaker the structural strength.

[0161] Based on the above tests, the test data obtained are shown in Tables 1 to 3 below.

[0162] in conclusion:

[0163] When there are 4 to 6 side panel reinforcement ribs 51, the elastic deformation of the side panel 10 is too large. When there are 7 or 8 side panel reinforcement ribs 51, the equivalent stress and elastic deformation of the side panel 10 are similar. For cost considerations, the number of side panel reinforcement ribs 51 is preferably 7, and the spacing is preferably 420mm. When there is 1 front panel reinforcement rib 53, the elastic deformation of the front panel 30 is too large. When there are 2 or 3 front panel reinforcement ribs 53, the equivalent stress and elastic deformation of the front panel 30 are similar. For cost considerations, the number of side panel reinforcement ribs 51 is preferably 2, and the spacing is preferably 448mm. When there are 5 top panel reinforcement ribs 52, the elastic deformation of the top panel 20 is too large. When there are 6 or 7 top panel reinforcement ribs 52, the equivalent stress and elastic deformation of the top panel 20 are similar. For cost considerations, the number of top panel reinforcement ribs 52 is preferably 6, and the spacing is preferably 610mm.

[0164] As shown in FIG. 28, the spacings of the fasteners 60 are different at different positions. The fastener 60 includes a first fastener 61 and a second fastener 62. The composite material plate 70 is connected to the box body frame 101 through the first fastener 61, and the composite material plate 70 constituting the front plate 30 and / or the side plate 10 is connected to the reinforcing rib 50 through the second fastener 62. There is a spacing D31 between two adjacent first fasteners 61, and there is a spacing D32 between two adjacent second fasteners 62. The connection between the composite material plate 70 and the box body frame 101 needs to be more firm and reliable, so D31 < D32. Optionally, the spacing D31 is 80 mm to 180 mm; for example, D31 is 80 mm, 100 mm, 110 mm, 120 mm, 130 mm, 140 mm, 150 mm, 160 mm, 180 mm and other appropriate values. The spacing D32 is 120 mm to 300 mm; for example, D32 is 120 mm, 160 mm, 180 mm, 200 mm, 220 mm, 240 mm, 260 mm, 280 mm, 300 mm and other appropriate values. By setting the spacing of the fasteners within the above range, the reliable connection between the composite material plate and the box body frame and the reinforcing rib can be ensured, and the deformation of the composite material plate can be resisted.

[0165] FIG. 29 shows the bottom plate 110 of the container 100, and the bottom plate 110 adopts a transverse joint arrangement. Specifically, the bottom plate 110 includes a plurality of bottom plate monomers 133. The two ends of the bottom plate monomer 133 in the width direction of the container 100 are lapped on two opposite bottom side beams 112, and the plurality of bottom plate monomers 133 are laid in the length direction of the container 100 to form the bottom plate 110. Compared with the conventional bottom plate 110 with longitudinal joints, in this solution, there is no need to provide a middle beam of the bottom plate 110 located at the center of the bottom plate 110 and extending along the length direction of the container 100, thereby reducing the consumption of steel, having a low material cost for the container 100, being more green and environmentally friendly, and improving the service life of the underframe 109 and the bottom plate 110.

[0166] The bottom plate 110 can be connected to the bottom cross beam 115 of the underframe 109 through fasteners 60 such as self-tapping screws. Specifically, as shown in FIGS. 30a and 30b, the underframe 109 includes a conventional bottom cross beam 115 and a wide-side bottom cross beam 134. Both the bottom cross beam 115 and the wide-side bottom cross beam 134 extend along the width direction of the container 100 and are located below the bottom plate monomer 133. The width of the wide-side bottom cross beam 134 is greater than the width of the bottom cross beam 115. The bottom plate monomer 133 is independently connected to the bottom cross beam 115 through a single row of fasteners 60, and two adjacent bottom plate monomers 133 are respectively connected to the same wide-side bottom cross beam 134 through a single row of fasteners 60. The bottom plate monomer 133 is fixed by the wide-side bottom cross beam 134 with a larger width at the splicing position, so that the bottom plate 110 is fixed more firmly and reliably at the splicing position. Optionally, both the wide-side bottom cross beam 134 and the bottom cross beam 115 are made of angle steel.

[0167] Returning to Figures 3 and 9, the side panel 10 is provided with an avoidance hole 11 near the bottom side, and the inner side of the reinforcing rib 50 is specifically provided with a recessed structure for assisting in fixing at least one fixing member 132. The fixing member 132 can pass through an external component, such as a rope-like member such as a binding rope, a steel wire, or a connecting member such as a hook or a buckle, to assist in fixing the goods in the box. The avoidance hole 11 is used to fix the end of a rope-like member such as a rope to the fixing member 132 at the bottom of the side panel 10 so as to fix the goods with the rope-like member. Optionally, the fixing member 132 is in the shape of a column, a ring, etc. The fixing member 132 can be welded to the reinforcing rib 50 and / or the bottom side beam 112. The protruding portion 50B of the reinforcing rib 50 forms a recessed structure 54, and the fixing member 132 is located in the recessed structure 54. The fixing member 132 is provided at the bottom of the reinforcing rib 50. Optionally, the container 100 further includes a fixing assembly 137 corresponding to each fixing member 132. The fixing assembly 137 includes a cover plate 138 and two sealing plates 139 provided on either side of the fixing member 132. One end of the fixing member 132 is fixedly connected to the bottom side beam 112, and the other end is fixedly connected to the cover plate 138. The cover plate 138, the two sealing plates 139, and the inner wall of the protrusion 50B form a space for guiding external components to pass through the fixing member 132.

[0168] Referring back to Figure 5 , a vertically extending reinforcement member 135 is provided inside the front corner post 42. Reinforcement member 135 is located within and connected to the front corner post 42. The two ends of reinforcement member 135 are connected to the top corner fitting 111a and the bottom corner fitting 111b, respectively, to increase the structural strength of the front corner post 42. The sheet material used to make reinforcement member 135 has a thickness of 2.5 mm to 4 mm, for example, 2.5 mm, 2.6 mm, 2.8 mm, 3 mm, 3.2 mm, 3.4 mm, 3.6 mm, 3.8 mm, 4 mm, or other suitable values, to ensure sufficient stacking capacity of container 100.

[0169] Optionally, the fastener 60 used to fix the composite material panel 70 is a rivet. When conventional rivets are used, the tail of the rivet will protrude from the composite material panel after installation, which will cause damage to the goods and personnel in the box. The present application improves the rivet so that its tail does not protrude from the composite material panel as much as possible. Specifically, the rivet 200 is used to connect the composite material panel 70 to other box components 151. The box component 151 can be the top side beam 108, the front lintel 106, the rear lintel 107 or the corner column 40 of the box frame 101, or other structures connected and fixed to the composite material panel 70, such as reinforcing ribs. The rivet 200 of the present application is described below in conjunction with Figures 31 to 35.

[0170] As shown in Figures 31 and 32, the rivet 200 may include a rivet sleeve 231. The rivet sleeve 231 may be cylindrical and have a tip structure 231a provided on its outer circumference. The rivet sleeve 231 is configured so that when the inner circumference of the rivet sleeve 231 is subjected to an external force in its own radial direction, the rivet sleeve 231 can at least partially expand and deform in its own radial direction, so that the tip structure 231a is at least partially embedded in the interior of the composite material plate 70. After installation is completed, the outer circumference of the rivet sleeve 231 that overlaps with the box member 151 and the composite material plate 70 can expand and deform in its own radial direction. After the rivet sleeve 231 is expanded and deformed, the tip structure 231a is embedded in the interior of the composite material plate 70, thereby achieving a riveted connection. The tip structure 231a is embedded in the interior of the composite material plate 70, which can ensure the connection strength and improve the pull-out force of the rivet 200, so that the rivet 200 does not need to be higher than the composite material plate after riveting is completed, and its tail can be roughly flush with the composite material plate to avoid damage to the goods and personnel in the box.

[0171] In actual selection, the length of the rivet sleeve 231 should be no less than the combined thickness of the box member 151 and the composite material panel 70. For example, the length of the rivet sleeve 231 can be equal to the combined thickness of the box member 151 and the composite material panel 70, or the length of the rivet sleeve 231 can be slightly greater than the combined thickness of the box member 151 and the composite material panel 70. This allows the tail of the rivet 200 (i.e., the end of the rivet sleeve 231) to be roughly flush with the composite material panel 70 after riveting, preventing users from being injured by the protruding portion of the rivet 200.

[0172] Optionally, the tip structure 231a is configured as a triangular thread, facilitating insertion of the tip structure 231a and reducing riveting effort. In this case, the tip structure 231a can extend circumferentially around the rivet sleeve 231 and spiral axially. The triangular thread has a triangular cross-section. Alternatively, a plurality of tip structures 231a can be evenly distributed around the outer circumference of the rivet sleeve 231, each of which is conical in shape. In other words, the rivet sleeve 231 resembles the shape of a mace, facilitating insertion.

[0173] The rivet 200 may further include a cap 233. The cap 233 is connected to the first end of the rivet sleeve 231. The outer circumference of the cap 233 is larger than that of the rivet sleeve 231. Specifically, the outer circumference of the cap 233 protrudes radially outward from the rivet sleeve 231. In the installed state, the cap 233 is located outside the box member 151, and the outer circumference of the cap 233 can abut the surface of the box member 151 along the axial direction of the rivet 200. After the rivet sleeve 231 expands and deforms, the tip structure 231a is embedded in the interior of the composite material plate 70, and the cap 233 abuts the surface of the box member 151. As a result, the box member 151 is sandwiched between the cap 233 and the composite material plate 70, achieving a secure and reliable connection between the box member 151 and the composite material plate 70. Optionally, the cap 233 can be integrally formed with the rivet sleeve 231 to facilitate assembly.

[0174] Specifically, the rivet 200 further includes a stem 232 and an expansion head 234. The stem 232 is axially inserted into both the cap 233 and the rivet sleeve 231. In other words, the cap 233 and the rivet sleeve 231 are sleeved onto the stem 232. The expansion head 234 is connected to one end of the stem 232. The radial dimension of the expansion head 234 is larger than the inner diameter of the rivet sleeve 231 when not expanded. The expansion head 234 can be integrally formed with the stem 232. The rivet 200 is configured such that the stem 232 is slidable relative to the rivet sleeve 231 along the axial direction of the rivet 200 when the rivet 200 is not riveted. The expansion head 234 extends from the second end of the rivet sleeve 231 when the rivet 200 is not riveted. When the rivet 200 is riveted, it is inserted into the interior of the rivet sleeve 231 as the stem 232 slides. The expansion head 234 can press the tip structure 231 a into the composite material plate 70 and keep the tip structure in the composite material plate 70 so as not to fall out.

[0175] During actual operation, the rivet sleeve 231 is sequentially passed through both the box member 151 and the composite material plate 70, with the cap 233 abutting against the box member 151. At this point, the stem 232 is pulled to move, and the expansion head 234 is gradually embedded into the interior of the rivet sleeve 231, causing the rivet sleeve 231 to expand and deform along its own radial direction, and the tip structure 231a on the outer circumference of the rivet sleeve 231 is at least partially embedded in the interior of the composite material plate 70. Furthermore, to enhance the strength of the connection, the outer circumference of the portion where the rivet sleeve 231 overlaps with the box member 151 and the composite material plate 70 is provided with the tip structure 231a. The circumferential dimension of the expansion head 234 can be no less than the thickness of the composite material plate 70, thereby ensuring that the tip structure 231a remains embedded in the box member 151 and the composite material plate 70.

[0176] After the rivet 200 is installed, the rivet 200 can be partially separated by breaking or other means to prevent the rivet 200 from protruding too much relative to the box member 151 and causing harm to people outside the box. Therefore, the core column 232 can include an embedded portion 221 and a detachment portion 222. The expansion head 234 can be connected to one end of the embedded portion 221, and correspondingly, the detachment portion 222 can be connected to the other end of the embedded portion 221. The rivet 200 is constructed such that the embedded portion 221 is hidden inside the rivet sleeve 231 when the rivet 200 is riveted, and the detachment portion 222 extends from the first end of the rivet sleeve 231, more specifically, from the cap body 233 when the rivet 200 is not riveted, and is detached from the embedded portion 221 by an external force when the rivet 200 is riveted.

[0177] After riveting is completed, both the embedded portion 221 and the expansion head 234 are at least partially located on the inner side of the rivet sleeve 231. Optionally, the embedded portion 221 and the expansion head 234 can be constructed as an integral part to facilitate assembly. The detachment portion 222 and the embedded portion 221 can be separated by an external force, or the detachment portion 222 can be detachably connected to the embedded portion 221, and after riveting is completed, the detachment portion 222 can be removed. After riveting is completed, at least the embedded portion 221 does not protrude outward from both the rivet sleeve 231 and the cap body 233. For example, neither the embedded portion 221 nor the expansion head 234 protrudes outward from both the rivet sleeve 231 and the cap body 233.

[0178] Optionally, the length of the rivet sleeve 231 is set to be equal to the sum of the thicknesses of the box member 151 and the composite material plate 70, and the expansion head 234 does not protrude outward from the rivet sleeve 231 when riveting is completed. In this way, after riveting, the tail of the rivet 200 (i.e., the end of the rivet sleeve 231 and the expansion head 234) is roughly flush with the composite material plate 70, preventing damage to the goods and personnel inside the box.

[0179] As shown in Figures 33 to 35 , the composite material panel 70 comprising the top panel 20 is connected to the rear lintel 107, the top side beam 108, and / or the front lintel 106 via rivets 200. The composite material panel 70 comprising the front panel 30 is connected to the front lintel 106, the front sill 113, and / or the front corner post 42 via rivets 200. The composite material panel 70 comprising the side panel 10 is connected to the top side beam 108, the bottom side beam 112, the front corner post 42, and / or the rear corner post 41 via rivets 200. The front panel reinforcement rib 53 is connected to the composite material panel 70 comprising the front panel 30 via rivets 200. The side panel reinforcement rib 51 is connected to the composite material panel 70 comprising the side panel 10 via rivets 200. The top panel reinforcement rib 52 is connected to the composite material panel 70 comprising the top panel 20 via rivets 200. As a result, the rivets 200 located on the top plate 20 are roughly flush with the upper surface of the top plate 20 to make the outside neat; the rivets 200 located on the front plate 30 are roughly flush with the inner surface of the front plate 30, and the rivets 200 located on the side plate 10 are roughly flush with the inner surface of the side plate 10 to avoid damage to the goods and personnel in the box.

[0180] When the fastener 60 is used, since the fastener 60 needs to be perforated on the reinforcement 50 and the composite material plate 70, water outside the box can easily enter the box through the fastener 60. For this reason, the present application adopts a hidden design for the fastener 60.

[0181] The fasteners 60 at the reinforcement ribs 50 are designed to be hidden.

[0182] As described above, the connecting portion 50A includes a first connecting portion 50A1 disposed within the recessed structure 54 and / or a second connecting portion 50A2 disposed outside the recessed structure 54. As shown in Figures 15a and 15b, the connecting portion 50A includes the first connecting portion 50A1 but does not include the second connecting portion 50A2. The first connecting portion 50A1 is connected to the protruding portion 50B at both ends of the rib 50 in the width direction. Fasteners 60 connect the first connecting portion 50A1 to the composite material plate 70. The cross-sectional shape of the rib 50 is, for example, rectangular.

[0183] As shown in Figure 36a, the connecting portion 50A includes a first connecting portion 50A1 and two second connecting portions 50A2 connected to the first connecting portion 50A1. The two second connecting portions 50A2 are respectively connected to the ends of the protrusion 50B in the width direction of the reinforcing rib 50. The first connecting portion 50A1 is connected to the composite material plate 70 via fasteners 60, and the two second connecting portions 50A2 are bonded to the composite material plate 70 via structural adhesive. Both connecting portions are connected to the composite material plate, ensuring a more reliable connection between the reinforcing rib and the composite material plate.

[0184] As shown in Figures 36b and 36c, the connecting portion 50A includes two first connecting portions 50A1 but does not include a second connecting portion 50A2. The two first connecting portions 50A1 are respectively connected to the ends of the protrusion 50B in the width direction of the reinforcing rib 50. Fasteners 60 connect the two first connecting portions 50A1 to the composite material plate 70. The difference is that the first protrusion 50B1 in Figure 36b is perpendicular to the first connecting portion 50A1, while the first protrusion 50B1 in Figure 36c is inclined relative to the first connecting portion 50A1.

[0185] By placing the fastener 60 on the first connecting portion 50A1, the outer end of the fastener 60 can be hidden within the recessed structure 54 and shielded by the protrusion 50B. This further prevents water from entering the container through the fastener 60 at the reinforcing rib 50, effectively reducing the risk of water ingress and improving the container's sealing and waterproofing performance. Furthermore, the fastener 60 at the reinforcing rib 50 cannot be observed from the outside of the container 100, improving the overall aesthetics of the product.

[0186] The fasteners 60 at the box frame 101 are designed to be hidden.

[0187] The components that make up the box frame 101 include an inner panel 141, an outer panel 142, and a transition panel 143 connecting the inner and outer panels 141, 142. The outer panel 142 is located on the outer side of the inner panel 141, facing away from the center of the box frame 101, and shields the inner panel 141. The outer panel 142, inner panel 141, and transition panel 143 form a recessed cavity 140 to facilitate the installation of fasteners 60 and increase structural strength. The inner panel 141 is connected to the composite material panel 70 via the fasteners 60, so that the outer ends of the fasteners 60 are concealed within the recessed cavity 140.

[0188] Specifically, as shown in Figure 37, the front corner post 42 includes a corner post body 45, a first corner post transition plate 145a, and a second corner post transition plate 145b. The first corner post transition plate 145a extends inward from the end of the corner post body 45 in the longitudinal direction of the box frame 101. The second corner post transition plate 145b extends inward from the end of the corner post body 45 in the width direction of the box frame 101. The corner post inner panel 144 located inside the front corner post 42 is constructed as two separate components: a first corner post inner panel 144a and a second corner post inner panel 144b, respectively connected to the composite material panels 70 that constitute the side panels 10 and the front panel 30. The first corner post inner panel 143 is connected to at least the first transition plate 145a. The composite material panels 70 that constitute the side panels 10 are connected to the first corner post inner panel 144a via fasteners 60. The second corner post inner panel 144b is connected to at least the second corner post transition plate 145b. The composite material panel 70 constituting the front panel 30 is connected to the second corner post inner panel 144b by fasteners 60. Alternatively, the corner post inner panel 144 located inside the front corner post 42 is constructed as a separate member to be connected to the composite material panels 70 constituting the side panels 10 and the front panel 30 at the same time.

[0189] As shown in Figure 38, rear corner post 41 includes a main corner post body 45 and a third corner post transition plate 145c. Third corner post transition plate 145c extends inward from the end of main corner post body 45 in the longitudinal direction of box frame 101. Corner post inner panel 144 includes a third corner post inner panel 144c located inward of rear corner post 41. Third corner post inner panel 144c is connected to at least third corner post transition plate 145c. Composite material panels 70, which constitute side panels 10, are connected to third corner post inner panel 144c via fasteners 60.

[0190] As shown in FIG39 , the inner side panel 141 includes an inner side panel 146a located inside the top side beam 108. The top side beam 108 includes a side beam main body 116 serving as the outer panel 142 and a side beam transition panel 146b serving as the transition panel 143. The side beam transition panel 146b extends inward from the lower end of the side beam main body 116. The side beam inner side panel 146a is connected to at least the side beam transition panel 146b. The composite material panel 70 forming the side panel 10 is connected to the inner side panel 146a via fasteners 60. The side beam main body 116 is configured to bend outward in multiple sections to form a recessed platform 117. The recessed platform 117 includes a horizontally disposed first section 117a and a vertically disposed second section 117b. The side beam transition panel 146b extends inward from the second section 117b. The side beam inner panel 146a is located between the first section 117a and the side beam transition panel 146b and is connected to both.

[0191] As shown in Figure 40 , the inner panel 141 includes an inner lintel panel 147a located inside the front lintel 106. The front lintel 106 includes the main lintel body 125 as the outer panel 142 and a transition panel 147b as the transition panel 143. The transition panel 147b extends inward from the lower end of the main lintel body 125. The inner lintel panel 147a is connected to at least the transition panel 147b. Figure 40 shows that one end of the inner lintel panel 147a is connected to the transition panel 147b, while the other end is free. The composite material panel 70 that constitutes the front panel 30 is connected to the inner lintel panel 147a via fasteners 60.

[0192] As shown in Figure 41, the roof side beams 108 and / or the front fascia 106 can be constructed from a special-shaped square tube. The special-shaped square tube includes an outer tube wall 148 serving as the outer panel 142, an inner tube wall 149 serving as the inner panel 141, and a bottom tube wall 150 serving as the transition panel 143. The inner tube wall 149 is configured to bend outward in multiple sections to form a concave platform 117. The concave platform 117 includes a horizontal first section 117a and a vertical second section 117b connected to the bottom tube wall 150. The composite material panel 70 forming the side panels 10 and / or the front panel 30 is connected to the second section 117b via fasteners 60.

[0193] The fasteners 60 are mounted on the inner panel 141 of the container frame 101, so that the outer ends of the fasteners 60 are concealed within the recessed cavity 140 formed by the inner panel 141, the outer panel 142, and the transition panel 143. This further prevents water from entering the container through the fasteners 60 on the container frame 101, effectively reducing the risk of water ingress and improving the container's sealing and waterproofing properties. Furthermore, the fasteners 60, obscured by the outer panel 142, cannot be observed from the outside of the container 100, improving the overall aesthetics of the product.

[0194] Second embodiment

[0195] A second embodiment of a container 300 will be described below with reference to Figures 42 to 51 . With the exception of the door and roof structure, the second embodiment of the container 300 has the same structure and / or configuration as the first embodiment of the container 100. Therefore, elements having substantially the same functions as those in the first embodiment will be numbered the same and, for the sake of brevity, will not be described and / or illustrated in detail again.

[0196] In this embodiment, the door panel 331 used in the container door 136 is also constructed from a composite material panel. Specifically, as shown in Figures 42 to 44 and 50, the container door 136 comprises a door panel assembly 330 and a corresponding portion of the container frame 101 connected to the door panel assembly 330. The door panel assembly 330 comprises the door panel 331 and a door frame 332. The door frame 332 is located on one side of the door panel 331 in the thickness direction and is connected to the door panel 331 to support the door panel 331. The door panel assembly 330 is located at the rear end of the container 300, which can also be referred to as the door end, in which case the container is an end-door container. Alternatively, the door panel assembly 330 can be located on the side of the container 300, in which case the container is a side-door container. For example, the container 300 may be provided with two door panel assemblies 330, forming a double-door structure. Of course, if needed and / or desired, the container may also have a single door panel assembly 330, forming a single-door structure. The door frame 332 includes door crossbars 334 located at the top and bottom ends of a single door panel 331, and door vertical beams 335 located at each end of the door panel 331 in the width direction of the door panel assembly 330. The door crossbar 334 extends between the two door vertical beams 335 and is connected to the door vertical beams 335 at both ends (see Figure 51). The door frame 332 is made of steel to ensure the overall structural strength of the door panel assembly 330. The door vertical beams 335 are pivotally connected to the container corner posts via hinges.

[0197] 45 to 49 , for example, this embodiment employs a concealed design for all fasteners on the reinforcement ribs and all fasteners on the container frame to improve the container's sealing and waterproofing performance. This concealed design has been described in the first embodiment and will not be repeated for the sake of brevity.

[0198] The top structure of this embodiment differs from that of the first embodiment, specifically in that the top plate reinforcement ribs 52 are disposed on the outside of the composite material panel 70 that constitutes the top plate 20. Therefore, the reinforcement ribs 50 are isolated from the interior of the container 300 by the composite material panel 70 that constitutes the top plate 20. The reinforcement ribs 50 are not exposed inside the container 300, and the inner surface of the top plate 20 formed by the composite material panel 70 is smooth. The composite material panel 70 that constitutes the top plate 20 can come into direct contact with the cargo inside the container, fully utilizing the wear resistance of the composite material. To better prevent water from entering the container through the installation position of the top plate reinforcement rib 52, the top plate reinforcement rib 52 adopts a closed structure. Specifically, the cross-section of the top plate reinforcement rib 52 is annular and closed to form a cavity 310, and sealing members 320 are provided at both ends of the top plate reinforcement rib 52 (see Figure 48). The fasteners 60 are hidden within the cavity 310 of the top plate reinforcement rib 52.

[0199] Optionally, as shown in Figure 47 , a top plate reinforcement rib 52 is provided at the end of the front lintel 106. The top plate reinforcement rib 52 is connected to both the composite material panel 70 constituting the top plate 20 and the end of the front lintel 106 via fasteners 60. A top plate reinforcement rib 52 is provided at the end of the rear lintel 107. The top plate reinforcement rib 52 is connected to both the composite material panel 70 constituting the top plate 20 and the end of the rear lintel 107 via fasteners 60. This arrangement can enhance the connection strength between the front lintel 106 and the rear lintel 107 and the top plate 20, providing greater structural strength. As shown in Figure 48 , the ends of the top plate reinforcement rib 52 can extend to the top side beams 108 located on either side of the box frame 101. The top plate reinforcement rib 52 is connected to the top plate 20 and the top side beams 108 via fasteners 60. With such arrangement, the top plate reinforcement ribs 52 can improve the connection strength between the top side beams 108 and the top plate 20, thereby improving the structural strength.

[0200] The door panel 331 is formed from a composite material panel 70. Specifically, a single door panel 331 is formed from at least one composite material panel 70, and optionally, a single door panel 331 is formed from one composite material panel 70. The composite material panel 70 has an inner surface facing the interior of the container and an outer surface opposite the inner surface. The door frame 332 is connected to the outer surface of the composite material panel 70, for example, using fasteners 60 such as screws and / or structural adhesive. The reinforcement ribs 50 also include at least one door panel reinforcement rib 355, which is connected to the outer surface of the composite material panel 70, for example, using fasteners 60 such as screws and / or structural adhesive.

[0201] The door panel assembly 330 also includes a door lock mechanism 333, which includes a lock rod 336, a lock rod bracket 337, a handle 338, and a handle base 339. The lock rod 336 is vertically arranged, and mounting locations for the lock rod bracket 337 are provided on the door panel reinforcement rib 355 and / or the door frame 332. The lock rod 336 is mounted to the door frame 332 and / or the door panel reinforcement rib 355 via lock rod brackets 337 at different locations. For example, the lock rod brackets 337 can be connected to the door frame 332 and / or the door panel reinforcement rib 355 by suitable means such as welding or fasteners 60, such as screws. Alternatively, the end of the handle 338 can be pivotally connected to the lock rod 336, and the handle base 339 can be fixed to the door panel reinforcement rib 355 by welding or fasteners 60, such as screws, so that the handle 338 can be rotatably locked to the handle base 339.

[0202] Door panel reinforcement ribs 355 are arranged along the width of door panel assembly 330. Both ends of door panel reinforcement ribs 355 are connected to or abut door vertical beams 335. This not only strengthens composite panel 70 but also facilitates securing locking rod 336 and handle base 339 to door panel reinforcement ribs 355. In other words, door panel reinforcement ribs 355 not only enhance the structural strength of the door panel but also provide a secure location for locking rod 336 and handle base 339. Furthermore, door panel reinforcement ribs 355 are arranged along the width of door panel assembly 330, with locking rod 336 positioned vertically and mounted on door panel reinforcement ribs 355. This improves the horizontal and vertical deformation resistance of the central portion of door panel 331.

[0203] The thickness t14 of the sheet material used to form the door panel reinforcement rib 355 is between 2.5 mm and 4 mm. For example, t14 can be 2.5 mm, 2.6 mm, 2.8 mm, 3 mm, 3.2 mm, 3.4 mm, 3.6 mm, 3.8 mm, 4 mm, or other suitable values. The sheet material used to form the door panel reinforcement rib 355 is preferably high-strength steel with a yield strength of 345 MPa or higher.

[0204] As shown in Figure 51 , the fasteners 60 also include third fasteners 63 and fourth fasteners 64. It should be noted that, as described above, the fasteners 60 on the door frame 132 and the door panel reinforcement rib 355 are obscured by the protrusion 50B. Figure 51 schematically illustrates the outer, transmissive positions of the third and fourth fasteners 63, 64. The door frame 132 is connected to the composite material panel 70 via the third fasteners 63, and the door panel reinforcement rib 355 is connected to the composite material panel 70 via the fourth fasteners 64. Adjacent third fasteners 63 have a spacing of D33, and adjacent fourth fasteners 64 have a spacing of D34. To ensure a more secure and reliable connection between the composite material panel 70 and the door frame 132, the third fasteners 63 are arranged more densely than the fourth fasteners 64, achieving a spacing of D34 > D33. If necessary and / or desired, D34 ≤ D33 can also be achieved. Optionally, spacing D33 is between 50 mm and 120 mm, for example, D33 is 50 mm, 55 mm, 60 mm, 65 mm, 70 mm, 75 mm, 80 mm, 85 mm, 90 mm, 100 mm, 110 mm, 120 mm, or other suitable values. Spacing D34 is between 80 mm and 170 mm, for example, D34 is 80 mm, 100 mm, 110 mm, 120 mm, 130 mm, 140 mm, 150 mm, 160 mm, 170 mm, or other suitable values. Setting the spacing of fasteners 60 within this range ensures a reliable connection between the composite panel 70, the door frame 132, and the door panel reinforcement ribs 355, and resists deformation of the composite panel 70.

[0205] This application can achieve at least the following beneficial effects:

[0206] This application uses composite material plates to replace thin corrugated steel plates. Composite material plates have the characteristics of being welding-free and painting-free, so they can greatly reduce the workload of welding and spraying during the production process of containers, reduce VOCs and solid waste emissions, and have obvious environmental benefits.

[0207] Because composite materials have a significantly lower density than steel, the composite container of this invention can theoretically reduce weight by over 6% and carbon emissions by over 13% compared to a comparable steel container. Furthermore, the composite material's excellent resistance to wear, corrosion, and impact can effectively reduce maintenance costs throughout the container's lifecycle.

[0208] The inner surface of the container of the present application is flat, which is conducive to cargo shipping and improves the biosafety level of the container.

[0209] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the art of this application. The terms used herein are merely for describing specific implementation purposes and are not intended to limit this application. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or is otherwise indicated.

[0210] The present application has been illustrated through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and explanation, and the present application is not limited to the above-mentioned embodiments. According to the teachings of the present application, more variations and modifications can be made, and these variations and modifications all fall within the scope of protection claimed by the present application.

Claims

1. A modular container, characterized in that: The container comprises: Side panels; roof; front panel; A box frame, wherein the box frame is made of steel material; and at least one reinforcing rib; wherein at least a portion of the side panels, the top panel, and the front panel is formed of at least one composite material panel, and the composite material panel is connected to the box frame; and The reinforcing ribs include: at least one connecting portion connected to the composite material plate; and A protrusion extends from the connecting portion toward a direction away from the composite material plate.

2. The modular container according to claim 1, characterized in that: The protrusion includes a first protrusion and a second protrusion. The first protrusion is connected to the connection portion. The second protrusion is connected to the first protrusion and is spaced apart from the connection portion in a thickness direction of the reinforcing rib.

3. The modular container according to claim 2, characterized in that: The first protrusion is inclined or perpendicular to the connecting portion.

4. The modular container according to claim 2, characterized in that: The cross-section of the reinforcing rib is in a rectangular, U-shaped, H-shaped or Z-shaped shape.

5. The modular container according to claim 1, characterized in that: The reinforcing rib includes two connecting portions, and the two connecting portions are spaced apart in a width direction of the reinforcing rib.

6. The modular container according to claim 5, characterized in that: The cross-section of the reinforcing rib is in an Ω shape, wherein two legs of the Ω shape serve as the two connecting portions.

7. The modular container according to claim 1, characterized in that: At least one of the side panels, the top panel and the front panel includes at least two spliced ​​composite panels, and the connecting portion is connected to two adjacent composite panels and at least partially covers a seam between two adjacent composite panels.

8. The modular container according to claim 1, characterized in that: The cross section of the reinforcing rib is L-shaped.

9. The modular container according to any one of claims 1 to 8, characterized in that: The protruding portion and the connecting portion are integrally formed.

10. The modular container according to any one of claims 1 to 8, characterized in that: The box frame comprises: Corner posts, the corner posts comprising a pair of front corner posts located at the front end of the box frame and a pair of rear corner posts located at the rear end of the box frame; A front lintel, the front lintel being connected to the upper ends of the pair of front corner columns respectively; a pair of top side beams, the top side beams being respectively connected to the upper ends of the front corner column and the rear corner column located on the same side; A base frame, the base frame being connected to lower ends of the pair of front corner posts and the pair of rear corner posts respectively; The reinforcing ribs include top plate reinforcing ribs extending laterally between the pair of top side beams, side plate reinforcing ribs extending vertically between the top side beams and the base frame, and front plate reinforcing ribs extending vertically between the front lintel and the base frame.

11. The modular container according to claim 10, characterized in that: The composite material plate constituting the front plate is located inside the box frame; and / or The composite material panels constituting the side panels are located on the inner side of the box frame; and / or The composite material plate constituting the top plate is located outside the box frame.

12. The modular container according to claim 10, characterized in that: The front plate reinforcement rib is located on the outer side of the composite material plate constituting the front plate; and / or The side panel reinforcement ribs are located on the outer side of the composite material panel constituting the side panel; and / or The top plate reinforcing ribs are located on the inner side of the composite material plate constituting the top plate.

13. A modular container, characterized in that: The container comprises: A box frame, wherein the box frame is made of steel material; Side panels, the side panels are arranged on both sides of the box frame; A top plate, the top plate being arranged at the top end of the box frame; A front plate, the front plate being arranged at the front end of the box frame; and at least one reinforcing rib; Wherein, at least a portion of the side panels, the top panel and / or the front panel is formed of at least one composite material panel; The reinforcing ribs are connected to the composite material panels to reinforce the strength of the side panels, the top panel and / or the front panel formed by the composite material panels; Wherein, at least one of the composite material panels is directly connected to the box frame.

14. The modular container according to claim 13, characterized in that: At least one of the side panels, the top panel and the front panel includes at least two spliced ​​composite panels, the container includes fasteners, two adjacent composite panels are connected by the reinforcing ribs, and two adjacent composite panels are overlapped with each other and the overlapping parts are connected by the fasteners or structural adhesive.

15. The modular container according to claim 13, characterized in that: At least one of the side panels, the top panel and the front panel includes at least two spliced ​​composite panels, two adjacent composite panels are coplanar with each other and the reinforcing ribs have a connecting portion that is in contact with the two adjacent composite panels, and the connecting portion is connected to both adjacent composite panels and covers the seam between the two adjacent composite panels.

16. The modular container according to claim 13, characterized in that: A single composite material plate is independently provided with at least one reinforcing rib.

17. The modular container according to claim 13, characterized in that: The reinforcing ribs include side plate reinforcing ribs extending in the vertical direction, and the spacing between two adjacent side plate reinforcing ribs is 300 mm to 600 mm; and / or The reinforcing ribs include top plate reinforcing ribs extending in the transverse direction, and the spacing between two adjacent top plate reinforcing ribs is 500 mm to 800 mm; and / or The reinforcing ribs include front plate reinforcing ribs extending in the vertical direction, and the spacing between two adjacent front plate reinforcing ribs is 300 mm to 600 mm.

18. The modular container according to claim 13, characterized in that: The box frame includes a top side beam and a bottom side beam, each of which includes a side beam body and a concave platform bent outward from the side beam body in multiple sections, the concave platform includes a horizontally arranged first section, a vertically arranged second section and a horizontally arranged third section, wherein the second section is connected to the side plate, the first section and the third section are respectively arranged at the upper and lower ends and the inner and outer sides of the second section, and a space for installing the reinforcing rib is formed between the third section of the top side beam and the third section of the bottom side beam, and the overall thickness of the reinforcing rib is less than the width of the third section.

19. The modular container according to claim 13, characterized in that: The side panels, the top panel and / or the front panel are all made of the composite material panel.

20. The modular container according to claim 13, characterized in that: The top plate includes the composite material plate and a metal plate, the metal plate is connected to the composite material plate via the reinforcing ribs, or the metal plate is bonded to the composite material plate.

21. The modular container according to claim 13, characterized in that: A seal is provided between the composite material plate and the box frame and / or between the composite material plate and the reinforcing rib.

22. The modular container according to claim 21, characterized in that: The container comprises a fastener, the composite material plate is connected to the box frame and / or the reinforcing rib via the fastener, and the seal is arranged around the fastener; and / or, The seal is disposed between the mating surfaces of the composite material plate and the box frame; and / or, The seal is disposed between the contact surfaces of the composite material plate and the reinforcing rib; and / or, When adjacent composite material panels are provided and two adjacent composite material panels are overlapped, the seal is provided between the abutting surfaces of the two adjacent composite material panels at the overlap.

23. The modular container according to claim 13, characterized in that: The container includes fasteners, and the composite material panels constituting the top plate are connected to the top end of the box frame through the fasteners. The top end of the box frame has a top upper surface, a top side surface and a top lower surface. The top side surface is located on the inner side of both the top upper surface and the top lower surface toward the center of the top plate, and the fasteners are arranged on the top upper surface.

24. The modular container according to claim 13, characterized in that: The container includes a fastener, and the composite material plate is connected to the box frame and / or the reinforcing rib via the fastener. The fastener is a rivet, and the rivet includes: A rivet sleeve, wherein the outer peripheral surface of the rivet sleeve is provided with a tip structure; The rivet sleeve is configured such that when the inner peripheral surface of the rivet sleeve is subjected to a force acting outward in the radial direction of the rivet, The rivet sleeve is at least partially capable of expansion deformation along the radial direction, so that the tip structure is at least partially embedded in the composite material plate.

25. The modular container according to claim 24, characterized in that: The rivet comprises a cap body connected to a first end of the rivet sleeve, an outer periphery of the cap body radially protrudes outward from the rivet sleeve, and an outer periphery of the cap body abuts against the box frame and / or the reinforcing rib.

26. The modular container according to claim 24, characterized in that: The rivet comprises a stem and an expansion head, wherein the stem is inserted into the rivet sleeve, the expansion head is connected to one end of the stem, and the radial dimension of the expansion head is greater than the inner diameter dimension of the rivet sleeve when it is not deformed. The rivet is constructed such that the core column can slide relative to the rivet sleeve along the axial direction of the rivet when the rivet is not riveted, and the expansion head extends from the second end of the rivet sleeve when the rivet is not riveted and is embedded in the interior of the rivet sleeve as the core column slides when the rivet is riveted.

27. The modular container according to claim 26, characterized in that: The stem comprises an embedded portion and a detachable portion, one end of the embedded portion is connected to the expansion head, and the detachable portion is connected to the other end of the embedded portion. The rivet is constructed such that the embedded portion is hidden inside the rivet sleeve when the rivet is riveted, and the detachable portion extends from the first end of the rivet sleeve when the rivet is not riveted and is detached from the embedded portion by external force when the rivet is riveted.

28. The modular container according to claim 24, characterized in that: The tip structure is configured as a triangular thread.

29. The modular container according to claim 13, characterized in that: The reinforcing rib includes a connecting portion and a protruding portion, wherein the connecting portion is attached to and connected to the composite material plate, and the protruding portion is connected to the connecting portion and extends in a direction away from the composite material plate.

30. The modular container according to claim 29, characterized in that: The modular container includes a fastener, a recessed structure is formed on the inner side of the protrusion, the connecting portion includes a first connecting portion arranged in the recessed structure, and the fastener connects the composite material board and the first connecting portion so that the outer end of the fastener is hidden in the recessed structure.

31. The modular container according to claim 30, characterized in that: The connection part further includes a second connection part arranged on the outer side of the recessed structure, the second connection part is connected to the first connection part, and the second connection part is bonded to the composite material plate by structural adhesive or sealant.

32. The modular container according to claim 29, characterized in that: The protruding portion is connected to the connecting portion at least one end portion of the reinforcing rib in the width direction, and / or the connecting portion is connected to the protruding portion at least one end portion of the reinforcing rib in the width direction.

33. The modular container according to claim 29, characterized in that: The protrusions include a first protrusion connected to the connection portion and a second protrusion parallel to and spaced apart from the connection portion, wherein the second protrusion is connected to the connection portion via the first protrusion at at least one end portion of the reinforcing rib in the width direction.

34. The modular container according to claim 13, characterized in that: The side plate is located on the inner side of the box frame, and the reinforcing ribs include side plate reinforcing ribs extending vertically. The side panel reinforcement ribs are arranged on the outer side of the composite material panel constituting the side panel; and / or The top plate is located on the outside of the box frame, the reinforcing ribs include top plate reinforcing ribs extending in the transverse direction, and the top plate reinforcing ribs are arranged on the inner side of the composite material plate constituting the top plate; and / or The front plate is located on the inner side of the box frame, the reinforcing ribs include front plate reinforcing ribs extending in the vertical direction, and the front plate reinforcing ribs are arranged on the outer side of the composite material plate constituting the front plate.

35. The modular container according to claim 13, characterized in that: The reinforcing ribs include side plate reinforcing ribs extending in the vertical direction, and the thickness of the plate used to make the side plate reinforcing ribs is 2.5 mm to 4 mm; and / or The reinforcing ribs include top plate reinforcing ribs extending in the transverse direction, and the thickness of the plate used to make the top plate reinforcing ribs is 2 mm to 3 mm; and / or The reinforcing ribs include front plate reinforcing ribs extending in the vertical direction, and the thickness of the plate used to make the front plate reinforcing ribs is 2.5 mm to 4 mm.

36. The modular container according to any one of claims 13 to 35, characterized in that: The container comprises a first fastener, the composite material plate is connected to the box frame via the first fastener, and the distance between two adjacent first fasteners is 80 mm to 180 mm.

37. The modular container according to any one of claims 13 to 35, characterized in that: The container includes a second fastener, and the composite material panels constituting the front panel and / or the side panel are connected to the reinforcing ribs via the second fastener, and the spacing between two adjacent second fasteners is 120 mm to 300 mm.

38. The modular container according to any one of claims 13 to 35, characterized in that: The thickness of the composite material plate is 2.5 mm to 4 mm.

39. The modular container according to any one of claims 13 to 35, characterized in that: The container also includes a bottom plate and a bottom frame, the bottom frame includes two bottom side beams arranged opposite to each other, the bottom plate includes a plurality of bottom plate monomers, both ends of the bottom plate monomers in the width direction of the container are overlapped on the two bottom side beams, and the plurality of bottom plate monomers are laid in the length direction of the container.

40. The modular container according to claim 39, characterized in that: The chassis includes a bottom cross beam and a wide bottom cross beam connected to the two bottom side beams, the width of the wide bottom cross beam is greater than the width of the bottom cross beam, the bottom plate monomers are independently connected to the bottom cross beam, and two adjacent bottom plate monomers are connected to the same wide bottom cross beam.

41. The modular container according to any one of claims 13 to 35, characterized in that: The box frame comprises a front corner column, a top corner piece and a bottom corner piece. A reinforcing piece extending vertically is arranged on the inner side of the front corner column. Two ends of the reinforcing piece are respectively connected to the top corner piece and the bottom corner piece.

42. The modular container according to claim 41, characterized in that: The thickness of the plate material used to make the reinforcement is 2.5 mm to 4 mm.

43. The modular container according to any one of claims 13 to 35, characterized in that: The composite material of the composite material plate mainly comprises glass fiber and resin, the mass percentage of the glass fiber is 60% to 70%, and the mass percentage of the resin is 30% to 35%.

44. The modular container according to claim 29, characterized in that: The modular container also includes at least one fixing member for auxiliary fixing, a recessed structure is formed on the inner side of the protrusion, the fixing member is arranged in the recessed structure, and an avoidance hole is opened on the side plate at a position corresponding to the fixing member, and the avoidance hole is used for an external component to pass through and connect with the fixing member.

45. The modular container according to claim 44, characterized in that: The modular container includes a fixing assembly corresponding to each of the fixings, the fixings are arranged at the bottom of the reinforcing ribs, the box frame includes a bottom side beam, the fixing assembly includes a cover plate and two sealing plates arranged on both sides of the fixing, one end of the fixing is fixedly connected to the bottom side beam and the other end is fixedly connected to the cover plate, and the cover plate, the two sealing plates and the inner wall of the protrusion form a space for guiding the external component to pass through the fixing.

46. ​​The modular container according to any one of claims 13 to 35, characterized in that: The components constituting the box frame include an inner panel, an outer panel, and a transition panel connected between the inner panel and the outer panel. The outer panel is located on the outer side of the inner panel facing away from the center of the box frame and covers the inner panel. A concave cavity is formed on the inner sides of the outer panel, the inner panel, and the transition panel. The inner panel is connected to the composite material panel via a fastener so that the outer end of the fastener is hidden in the concave cavity.

47. The modular container according to claim 46, characterized in that: The box frame includes a front lintel, a rear lintel, four corner columns and two top side beams, and at least one of the front lintel, the rear lintel, the corner columns and the top side beams is the component constituting the box frame.

48. The modular container according to any one of claims 13 to 35, characterized in that: The container includes a door panel assembly, which is openably and closably arranged on the rear end or the side panel of the container, the door panel assembly includes a door panel and a door frame, the door panel is connected to the door frame, at least a portion of the door panel is composed of at least one composite material panel, and the reinforcement ribs include door panel reinforcement ribs, and the door panel reinforcement ribs are connected to the outer surface of the composite material panel constituting the door panel.

49. The modular container according to claim 48, characterized in that: The door frame is connected to an outer surface of the composite material panel constituting the door panel.

50. The modular container according to claim 48, characterized in that: The door panel reinforcement ribs are arranged along the width direction of the door panel assembly, and / or both ends of the door panel reinforcement ribs are connected to or abut against the door frame.

51. The modular container according to claim 48, characterized in that: The composite material plate constituting the door panel is connected to the door frame and / or the door panel reinforcement rib via fasteners, and a seal is provided around the fasteners.

52. The modular container according to claim 48, characterized in that: A seal is provided between the mating surfaces of the composite material plate and the door frame; and / or a seal is provided between the mating surfaces of the composite material plate and the door panel reinforcement rib.

53. The modular container according to claim 48, characterized in that: The door panel assembly also includes a door lock mechanism, which includes a lock rod and a lock rod bracket. The lock rod is vertically arranged, and a mounting position for mounting and fixing the lock rod bracket is provided on the door panel reinforcement rib and / or the door frame. The lock rod is installed to the door frame and / or the door panel reinforcement rib via the lock rod bracket.

54. The modular container according to any one of claims 13 to 33 and 35, characterized in that: The reinforcing ribs include top plate reinforcing ribs extending in a transverse direction, and the top plate reinforcing ribs are arranged on the outer side of the composite material plate constituting the top plate.

55. The modular container according to claim 54, characterized in that: The cross section of the top plate reinforcement rib is in a closed annular shape to form a cavity, and sealing members are provided at both ends of the top plate reinforcement rib.

56. The modular container according to claim 55, characterized in that: The top plate reinforcement rib is connected to the composite material plate constituting the top plate through a fastener, and the fastener is hidden in the cavity of the top plate reinforcement rib.

57. The modular container according to claim 54, characterized in that: The box frame includes a front lintel, the top plate reinforcing rib is provided at an end of the front lintel, and the top plate reinforcing rib is connected to both the composite material plate constituting the top plate and the end of the front lintel via a fastener; and / or The box frame includes a rear end lintel, the top plate reinforcing rib is provided at an end of the rear end lintel, and the top plate reinforcing rib is connected to both the composite material plate constituting the top plate and the end of the rear end lintel via a fastener; and / or The box frame comprises a top side beam, and the top plate reinforcement ribs are connected to the composite material plate constituting the top plate and the top side beam through fasteners.

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