Container chassis and container

Abstract

The utility model provides a container underframe which is used for a container and comprises an outer frame, a partition beam, a bottom cross beam and at least one floor. The partition beams and the bottom cross beams extend in the width direction of the container and are connected to the inner side of the outer frame. A floor is connected to the upper surfaces of the split beams and the bottom crossbeams. The number of the bottom cross beams for supporting the floor with the length of 2400 mm is 7-11 between the adjacent partition beams in the length direction of the container; the bottom cross beam comprises an upper wing plate, a web plate and a lower wing plate. The thickness of the bottom cross beam is T, 2.2 mmlt; tlt; the size of the upper wing plate and the size of the lower wing plate in the length direction of the container are W, 22 mmlt; wlt; and the thickness is 45mm. The bottom cross beam is a component made of high-strength steel with the stress strength of 400-680 Mpa. According to the container underframe, the weight of the container is reduced by changing the structure and / or the number of the bottom cross beams, the material strength of the bottom cross beams is fully utilized, and the bearing capacity of the container underframe is ensured.

Description

Technical Field

[0001] The utility model generally relates to the technical field of container structures, and more specifically to a container chassis and a container. Background Art

[0002] A container generally consists of a pair of side walls, door ends, front ends, top plates, bottom frames and other components. The bottom frame structure of a container consists of two bottom side beams and many bottom cross beams connected to the bottom side beams. The bottom frame of a container is mainly composed of a frame and a floor laid on the frame to carry loads. The container floor is mainly plywood, including full wood flooring, bamboo wood flooring, and OSB composite flooring. The quality and stability of the industry floor have always troubled the entire industry. Later, with the development of the container industry, the China Container Industry Association formulated JH / T D02-2021 "Plywood for Container Bottom Plates", which stipulates that strength marks should be marked on appropriate parts of the product to facilitate the identification and use of product quality. In the specific implementation practice of the container industry, according to the test results of the floor test, the floor is divided into T7 and T6 levels. The larger the number, the better the quality, and the floor quality and recognizability are greatly improved. On the other hand, high-strength steel is continuously introduced in the container industry. The bottom of the container is mainly composed of container wooden floor with a standard length of 2400mm. For a long time, the number of middle bottom beams of the reinforced supporting wooden floor covered by a single wooden floor with a standard length of 2400mm is 7, the wing plate width of the bottom beam of the "C"-shaped cross-section structure is 45mm, and the steel plate thickness is 4.5mm. Therefore, it is necessary to make full use of the respective advantages of floors of different strength levels and high-strength steel in order to reduce the weight of the container and reduce the material cost of the container.

[0003] Therefore, it is necessary to provide a container chassis and a container to at least partially solve the above problems. Utility Model Content

[0004] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0005] In order to at least partially solve the above problems, the utility model provides a container chassis for a container in a first aspect, comprising an outer frame, a split beam, a bottom cross beam and at least one floor with a length of 2400 mm; the split beam extends along the width direction of the container and is connected to the inner side of the outer frame; the bottom cross beam extends along the width direction of the container and is connected to the inner side of the outer frame; the floor is connected to the upper surfaces of both the split beam and the bottom cross beam;

[0006] Between the partition beams adjacent to each other along the length direction of the container, the number of bottom crossbeams supporting the floor with a length of 2400 mm is 7 - 11; the bottom crossbeams include:

[0007] Upper wing plate;

[0008] Web plate, the web plate is connected to the upper wing plate and protrudes downward from the upper wing plate;

[0009] Lower wing plate, the lower wing plate is connected to the web plate and is located below the upper wing plate; wherein, the thickness of the bottom crossbeam is T, 2.2 mm < T < 4.5 mm, and the dimension of the upper wing plate and the lower wing plate along the length direction of the container is W, 22 mm < W < 45 mm.

[0010] Optionally, the number of bottom crossbeams between the partition beams adjacent to each other along the length direction of the container is 9 - 11, the range of the thickness of the bottom crossbeam is: 2.5 mm ≤ T ≤ 3.8 mm, and the dimension range of the upper wing plate and the lower wing plate along the length direction of the container is: 30 < W ≤ 41 mm.

[0011] Optionally, the floor is constructed as one of a wooden floor, a bamboo wood floor, and a composite material floor, and the strength grade of the floor is T6 or T7.

[0012] Optionally, the bottom crossbeam and the partition beam are constructed as members made of steel with a stress intensity of 400 - 680 Mpa.

[0013] Optionally, the number of bottom crossbeams between the partition beams adjacent to each other along the length direction of the container is 7, the thickness of the bottom crossbeam is T = 3.8 mm, the dimension of the upper wing plate and the lower wing plate along the length direction of the container is W = 43 mm, and the strength grade of the floor is T7.

[0014] Optionally, the number of bottom crossbeams between the partition beams adjacent to each other along the length direction of the container is 8, the thickness of the bottom crossbeam is T = 3.6 mm, the dimension of the upper wing plate and the lower wing plate along the length direction of the container is W = 41 mm, and the strength grade of the floor is T7.

[0015] Optionally, the number of bottom crossbeams between the partition beams adjacent to each other along the length direction of the container is 9, the thickness of the bottom crossbeam is T = 3.0 mm, the dimension of the upper wing plate and the lower wing plate along the length direction of the container is W = 39 mm, and the strength grade of the floor is T7.

[0016] Optionally, the number of the bottom cross beams between the adjacent split beams along the length direction of the container is 10, the thickness of the bottom cross beam is T=2.8 mm, the dimensions of the upper wing plate and the lower wing plate along the length direction of the container are W=35 mm, and the strength grade of the floor is T7.

[0017] Optionally, the number of the bottom cross beams between the adjacent split beams along the length direction of the container is 11, the thickness of the bottom cross beam is T=2.5 mm, the dimensions of the upper wing plate and the lower wing plate along the length direction of the container are W=32 mm, and the strength grade of the floor is T7.

[0018] Optionally, the number of the bottom cross beams between the adjacent split beams along the length direction of the container is 8, the thickness of the bottom cross beam is T=3.5 mm, the dimensions of the upper wing plate and the lower wing plate along the length direction of the container are W=44 mm, and the strength grade of the floor is T6.

[0019] Optionally, the number of the bottom cross beams between the adjacent split beams along the length direction of the container is 9, the thickness of the bottom cross beam is T=3.0 mm, the dimensions of the upper wing plate and the lower wing plate along the length direction of the container are W=39 mm, and the strength grade of the floor is T6.

[0020] Optionally, the number of the bottom cross beams between the adjacent split beams along the length direction of the container is 10, the thickness of the bottom cross beam is T=2.8 mm, the dimensions of the upper wing plate and the lower wing plate along the length direction of the container are W=35 mm, and the strength grade of the floor is T6.

[0021] Optionally, the number of the bottom cross beams between the adjacent split beams along the length direction of the container is 11, the thickness of the bottom cross beam is T=2.5 mm, the dimensions of the upper wing plate and the lower wing plate along the length direction of the container are W=32 mm, and the strength grade of the floor is T6.

[0022] Optionally, the outer frame comprises:

[0023] Corner fittings;

[0024] a bottom end beam extending in a width direction of the container and connected to the corner fitting;

[0025] A bottom side beam extends along the length direction of the container and is connected to the corner piece.

[0026] A second aspect of the present invention provides a container, comprising the container chassis described in the first aspect of the present invention.

[0027] According to the container chassis of the present invention, the weight of the container is reduced by changing the structure and / or number of the bottom cross beams, and the material strength of the bottom cross beams themselves is fully utilized to ensure the carrying capacity of the container chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0029] Figure 1 A schematic top view of a container chassis according to a preferred embodiment of the present utility model; and

[0030] Figure 2 for Figure 1 The schematic diagram of the structure of the bottom cross beam and the floor installation connection in the container chassis is shown.

[0031] Description of reference numerals:

[0032] 1 container chassis 10 outer frame

[0033] 11 Angle fitting 12 Bottom beam

[0034] 13 Bottom beam 20 Split beam

[0035] 30 Bottom beam 31 Upper wing plate

[0036] 32 belly plate 33 lower wing plate

[0037] 40 Flooring 50 Fasteners DETAILED DESCRIPTION

[0038] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features known in the art are not described.

[0039] In order to fully understand the implementation of the present invention, a detailed structure will be presented in the following description. Obviously, the implementation of the present invention is not limited to the specific details familiar to those skilled in the art.

[0040] It should be understood that the purpose of the terms used herein is only to describe specific embodiments and is not a limitation of the present utility model. The singular forms "a", "an" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise. When the terms "comprising" and / or "including" are used in this specification, they specify the presence of the described features, wholes, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their combinations.

[0041] The ordinal numbers such as "first" and "second" cited in the present utility model are only 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". It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer" and similar expressions used in the present utility model are only for the purpose of illustration and are not limitations.

[0042] Hereinafter, specific embodiments of the present utility model will be described in more detail with reference to the accompanying drawings, which show representative embodiments of the present utility model and do not limit the present utility model.

[0043] The present utility model provides a container, and the container includes a container chassis 1. Please refer to Figure 1 , the container chassis 1 may include an outer frame 10, a dividing beam 20, a bottom cross beam 30 and at least one floor 40 with a length of 2400 mm. Specifically, the dividing beam 20 may extend along the width direction of the container and be connected to the inner side of the outer frame 10. The bottom cross beam 30 extends along the width direction of the container and is connected to the inner side of the outer frame 10. The floor 40 is connected to the upper surfaces of both the dividing beam 20 and the bottom cross beam 30. Between the adjacent dividing beams 20 along the length direction of the container, the number of bottom cross beams 30 supporting the floor 40 with a length of 2400 mm is 7 - 11. For example Figure 1 in, the number of bottom cross beams 30 between the adjacent dividing beams 20 along the length direction of the container is 7. Please refer to Figure 2 , the bottom cross beam 30 may include an upper wing plate 31, a web 32 and a lower wing plate 33. The web 32 is connected to the upper wing plate 31 and protrudes downward from the upper wing plate 31, and the lower wing plate 33 is connected to the web 32 and is located below the upper wing plate 31. Among them, the thickness of the bottom cross beam 30 is T, and 2.2 mm < T < 4.5 mm. The dimensions of the upper wing plate 31 and the lower wing plate 33 along the length direction of the container are W, and 22 mm < W < 45 mm.

[0044] According to the container chassis 1 of the present invention, the weight of the container is reduced by changing the structure and number of the bottom cross beams 30 , and the material strength of the bottom cross beams 30 is fully utilized to ensure the bearing capacity of the container chassis 1 .

[0045] It should be noted that the floor 40 is constructed as a standard floor recognized in the industry (the length of the floor 40 is 2400 mm). It can be understood that the number of bottom beams 30 covered on the bottom surface of a single floor 40 is 7-11. Preferably, the material of the split beam 20 and the bottom beam 30 is steel. The floor 40 can be constructed as one of a wooden floor, a bamboo wooden floor, and a composite material floor.

[0046] Figure 1 In the embodiment, the outer frame 10 may include a corner piece 11, a bottom end beam 12 and a bottom side beam 13. The bottom end beam 12 extends along the width direction of the container and is connected to the corner piece 11, and the bottom side beam 13 extends along the length direction of the container and is connected to the corner piece 11. It can be understood that the split beam 20 and the bottom cross beam 30 are connected to the bottom side beam 13. Figure 2 In the embodiment, the cross section of the bottom cross beam 30 is configured to be C-shaped, the floor panel 40 and the bottom cross beam 30 have matching assembly holes, and are connected via fasteners 50 .

[0047] The following table lists the comparison of the size and quantity of the bottom cross beam of the traditional structure and the bottom cross beam of the present invention, as well as the test results of the corresponding stress strength performance:

[0048]

[0049] It can be seen from the data in the table that, under the premise of reducing the overall weight of the container chassis 1, the stress value of the bottom cross beam 30 is greatly improved compared with the traditional structure, and the maximum stress value of the floor 40 is basically reduced, thereby improving the safety factor of the floor 40, making it less prone to damage, and ensuring the bearing capacity of the container chassis 1. In addition, when the number of bottom cross beams 30 covered by a single floor 40 is 9-11, the stress value of the bottom cross beam 30 is more superior, and accordingly, the stress value of the floor 40 is also better reduced.

[0050] The following is a brief description of the specific implementation method of the table display:

[0051] Embodiment 1: The number of bottom cross beams 30 between adjacent split beams 20 along the length direction of the container is 7, the thickness of the bottom cross beam 30 is T=3.8 mm, the dimensions of the upper wing plate 31 and the lower wing plate 33 along the length direction of the container are W=43 mm, and the strength grade of the floor 40 is T7. At this time, the stress of the floor 40 is 71 MPa, and the stress of the bottom cross beam 30 is 400 MPa.

[0052] Embodiment 2: The number of bottom cross beams 30 between adjacent split beams 20 along the length direction of the container is 8, the thickness of the bottom cross beam 30 is T=3.6 mm, the dimensions of the upper wing plate 31 and the lower wing plate 33 along the length direction of the container are W=41 mm, and the strength grade of the floor 40 is T7. At this time, the stress of the floor 40 is 68 MPa, and the stress of the bottom cross beam 30 is 450 MPa.

[0053] Embodiment 3: The number of bottom cross beams 30 between adjacent split beams 20 along the length direction of the container is 9, the thickness of the bottom cross beam 30 is T=3.0 mm, the dimensions of the upper wing plate 31 and the lower wing plate 33 along the length direction of the container are W=39 mm, and the strength grade of the floor 40 is T7. At this time, the stress of the floor 40 is 67 MPa, and the stress of the bottom cross beam 30 is 500 MPa.

[0054] Embodiment 4: The number of bottom cross beams 30 between adjacent split beams 20 along the length direction of the container is 10, the thickness of the bottom cross beam 30 is T=2.8 mm, the dimensions of the upper wing plate 31 and the lower wing plate 33 along the length direction of the container are W=35 mm, and the strength grade of the floor 40 is T7. At this time, the stress of the floor 40 is 66 MPa, and the stress of the bottom cross beam 30 is 550 MPa.

[0055] Embodiment 5: The number of bottom cross beams 30 between adjacent split beams 20 along the length direction of the container is 11, the thickness of the bottom cross beam 30 is T=2.5 mm, the dimensions of the upper wing plate 31 and the lower wing plate 33 along the length direction of the container are W=32 mm, and the strength grade of the floor 40 is T7. At this time, the stress of the floor 40 is 65 MPa, and the stress of the bottom cross beam 30 is 650 MPa.

[0056] Embodiment 6: The number of bottom cross beams 30 between adjacent split beams 20 along the length direction of the container is 8, the thickness of the bottom cross beam 30 is T=3.5 mm, the dimensions of the upper wing plate 31 and the lower wing plate 33 along the length direction of the container are W=44 mm, and the strength grade of the floor 40 is T6. At this time, the stress of the floor 40 is 66 MPa, and the stress of the bottom cross beam 30 is 480 MPa.

[0057] Embodiment 7: The number of bottom cross beams 30 between adjacent split beams 20 along the length direction of the container is 9, the thickness of the bottom cross beam 30 is T=3.0 mm, the dimensions of the upper wing plate 31 and the lower wing plate 33 along the length direction of the container are W=39 mm, and the strength grade of the floor 40 is T6. At this time, the stress of the floor 40 is 65 MPa, and the stress of the bottom cross beam 30 is 550 MPa.

[0058] Embodiment 8: The number of bottom cross beams 30 between adjacent split beams 20 along the length direction of the container is 10, the thickness of the bottom cross beam 30 is T=2.8 mm, the dimensions of the upper wing plate 31 and the lower wing plate 33 along the length direction of the container are W=35 mm, and the strength grade of the floor 40 is T6. At this time, the stress of the floor 40 is 64 MPa, and the stress of the bottom cross beam 30 is 580 MPa.

[0059] Embodiment 9: The number of bottom cross beams 30 between adjacent split beams 20 along the length direction of the container is 11, the thickness of the bottom cross beam 30 is T=2.5 mm, the dimensions of the upper wing plate 31 and the lower wing plate 33 along the length direction of the container are W=32 mm, and the strength grade of the floor 40 is T6. At this time, the stress of the floor 40 is 63 MPa, and the stress of the bottom cross beam 30 is 680 MPa.

[0060] In addition, the inventors have found that when the dimension of the upper wing plate 31 and the lower wing plate 33 along the length direction of the container is W=25 mm, the number and thickness of the bottom cross beam 30 are reasonably set, and the floor 40 with a strength grade of T6 or T7 is selected, the floor 40 and the bottom cross beam 30 can also obtain better stress performance.

[0061] According to the container of the present invention, under the premise of ensuring the carrying capacity of the container chassis 1, by changing the structure of the bottom cross beam 30 and / or the number of bottom cross beams 30 covered by a single floor 40, the carrying capacity of the bottom cross beam 30 can be better exerted, thereby improving the safety factor of the floor 40, and reducing the overall weight of the container chassis 1, thereby reducing the material cost of the container.

[0062] 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 technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "setting" appearing in this article may indicate that one component is directly attached to another component, or that one component is attached to another component through an intermediate. Features described in this article 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 otherwise specified.

[0063] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the described embodiments. It can be understood by those skilled in the art that more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of the protection claimed by the utility model.

Claims

1. A container underframe for a container, comprising an outer frame, dividing beams, bottom crossbeams, and at least one floor with a length of 2400 mm; the dividing beams extend along the width direction of the container and are connected to the inner side of the outer frame; the bottom crossbeams extend along the width direction of the container and are connected to the inner side of the outer frame; the floor is connected to the upper surfaces of both the dividing beams and the bottom crossbeams; characterized in that, between the dividing beams adjacent to each other along the length direction of the container, the number of the bottom crossbeams supporting the floor with a length of 2400 mm is 7 - 11; the bottom crossbeam includes: an upper flange; a web, the web is connected to the upper flange and protrudes downward from the upper flange; a lower flange, the lower flange is connected to the web and is located below the upper flange; wherein, the thickness of the bottom crossbeam is T, 2.2 mm < T < 4.5 mm, and the dimension of the upper flange and the lower flange along the length direction of the container is W, 22 mm < W < 45 mm.

2. The container chassis according to claim 1, characterized in that: between the dividing beams adjacent to each other along the length direction of the container, the number of the bottom crossbeams is 9 - 11, the range of the thickness of the bottom crossbeam is: 2.5 mm ≤ T ≤ 3.8 mm, and the dimension range of the upper flange and the lower flange along the length direction of the container is: 32 mm ≤ W ≤ 44 mm.

3. The container chassis according to claim 1, characterized in that: the floor is constructed as one of a wooden floor, a bamboo wood floor, and a composite material floor, and the strength grade of the floor is T6 grade or T7 grade.

4. The container chassis according to claim 1, characterized in that: the bottom crossbeam is constructed as a member made of steel with a stress intensity of 400 - 680 Mpa.

5. The container chassis according to any one of claims 1 to 4, characterized in that: the outer frame includes: corner fittings; bottom end beams, the bottom end beams extend along the width direction of the container and are connected to the corner fittings; bottom side beams, the bottom side beams extend along the length direction of the container and are connected to the corner fittings.

6. A container, characterized in that: Including the container underframe according to any one of claims 1 to 5.

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