Underframe of container and container

Abstract

The utility model discloses an underframe of a container and the container. The underframe of the container comprises two bottom side beams, a plurality of bottom cross beams, a steel floor and a bottom sealing plate, the two bottom side beams extend in the longitudinal direction of the bottom frame and are located on the two sides of the bottom frame respectively, the multiple bottom cross beams are arranged in the longitudinal direction of the bottom frame and connected between the two bottom side beams, and the multiple bottom cross beams and the two bottom side beams form a frame structure. The steel floor is laid on the frame structure, the steel floor is fixed to the two bottom cross beams on the outermost side in a continuous welding mode, and the lower surface of the steel floor is fixed to the joints of the tops of the other bottom cross beams in an intermittent welding mode; the bottom sealing plate covers the lower portion of the frame structure in a sealing mode, and the edge of the bottom sealing plate is fixed to the two bottom side beams and the two outermost bottom cross beams in a continuous welding mode. Bacteria are prevented from hiding in the gap between the steel floor and the bottom cross beam through the closed space, meanwhile, the welding workload is reduced, and it is guaranteed that the steel floor has good flatness.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics transportation, and particularly relates to a chassis of a container and a container. Background Art

[0002] A standard container usually includes a chassis, two side plates, a top plate, a front end cavity, a door, and a top plate. A traditional container chassis generally includes two bottom side beams, a plurality of bottom cross beams, and a wooden floor. The two bottom side beams extend longitudinally along the chassis and are respectively located on both sides of the chassis. A plurality of bottom cross beams are welded between the two bottom side beams and arranged longitudinally along the chassis. The wooden floor is laid on the frame structure composed of a plurality of bottom cross beams and two bottom side beams. In order to reduce costs, reduce self-weight, increase the internal space of the container, and meet environmental protection requirements, etc., some existing container chassis use a steel floor to replace the wooden floor. After laying the steel floor on the frame composed of the bottom cross beam and the bottom side beam, the top of the bottom cross beam is welded and fixed to the lower surface of the steel floor. Since a plurality of bottom cross beams and the lower surface of the steel floor form multiple weld seams, the welding workload is large. At the same time, in order to avoid deformation of the steel floor caused by a long weld seam, generally, the butt joint of the bottom cross beam and the steel floor is welded in an intermittent welding (spot welding) manner.

[0003] There are a large number of gaps at the full-welded bottom cross beam and the steel floor. During the sea-land combined transportation of the container, the above-mentioned gaps will hide bacteria. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the first object of the utility model is to propose a chassis of a container, which can avoid bacteria hiding in the gaps between the steel floor and the bottom cross beam while avoiding deformation of the steel floor.

[0005] The second object of the utility model is to propose a container.

[0006] To achieve the above first object, the utility model adopts the following technical scheme:

[0007] The chassis of the container includes two bottom side beams, a plurality of bottom cross beams, a steel floor, and a bottom seal plate;

[0008] The two bottom side beams extend longitudinally along the chassis and are respectively located on both sides of the chassis. A plurality of bottom cross beams are arranged longitudinally along the chassis and are connected between the two bottom side beams. The plurality of bottom cross beams and the two bottom side beams form a frame structure;

[0009] The steel floor is laid on the frame structure. The steel floor and the two outermost bottom cross beams are fixed by continuous welding, and the connection between the lower surface of the steel floor and the top of the other bottom cross beams is fixed by intermittent welding; the bottom seal plate covers the lower part of the frame structure, and its edge is fixed to the two bottom side beams and the two outermost bottom cross beams by continuous welding.

[0010] The two outermost bottom crossbeams both include webs, lower wing plates bent from the bottom of the webs to one side, and both ends of the bottom sealing plate are respectively fillet welded to the lower wing plates of the two outermost bottom crossbeams.

[0011] Among the two outermost bottom crossbeams, the bottom crossbeam at the front end of the underframe is the end bottom crossbeam, and the bottom crossbeam at the rear end of the underframe is the sill. Both ends of the bottom sealing plate respectively form a flat plate connecting portion, and the two flat plate connecting portions are respectively fillet welded to the lower surface of the lower wing plate of the end bottom crossbeam and the lower surface of the lower wing plate of the sill.

[0012] A bottom angle member is provided at each of the four end corners of the underframe. The bottom surface of the bottom angle member is offset downward by a distance H compared to the bottom of the bottom sealing plate, where H≥0.

[0013] The cross-sectional shapes of the other bottom crossbeams except the end bottom crossbeam and the sill are L-shaped or I-shaped or C-shaped.

[0014] Both sides of the bottom sealing plate are butt welded to the inner side surfaces of the two bottom side beams.

[0015] The bottom sealing plate is wavy, and it is provided with a plurality of wave crests and a plurality of wave troughs, and the plurality of wave crests and the plurality of wave troughs are arranged at intervals along the longitudinal direction of the underframe.

[0016] The thickness of the bottom sealing plate is D1, and the thickness of the steel floor is D2, where D1 / D2 is 0.3 to 0.6.

[0017] To achieve the second above-mentioned purpose, the present utility model adopts the following technical solutions:

[0018] A container, including the underframe of the above-mentioned container.

[0019] The beneficial effects of the present utility model are as follows:

[0020] Since the present utility model is provided with a bottom sealing plate at the bottom of the frame structure composed of the bottom side beams and the bottom crossbeams, the periphery of the bottom sealing plate is respectively fixed to the two bottom side beams and the two outermost bottom crossbeams by continuous welding, and a closed space is enclosed by the bottom sealing plate, the steel floor, the two bottom side beams and the two outermost bottom crossbeams. The other multiple bottom crossbeams are all enclosed in this closed space. Therefore, the other multiple bottom crossbeams only need to be fixed to the steel floor by intermittent welding. The closed space prevents bacteria from hiding in the gap between the steel floor and the bottom crossbeam. At the same time, the steel floor does not need to be continuously welded to all the bottom crossbeams in real time, reducing the welding workload and preventing the steel floor from deforming due to a large amount of welding, ensuring that the steel floor has better flatness. Description of the Drawings

[0021] Figure 1 It is a structural schematic diagram of the present utility model;

[0022] Figure 2 is Figure 1 the A-A sectional view of Specific Embodiment

[0023] Next, in combination with the drawings and specific embodiments, the present utility model will be further described:

[0024] As Figure 1 , 2 shown, a chassis of a container of the present utility model includes two bottom side beams 20, multiple bottom cross beams, a steel floor 30, and a bottom sealing plate 40. The two bottom side beams 20 extend longitudinally along the chassis, and the two bottom cross beams 20 are respectively located on both sides of the chassis. The multiple bottom cross beams are arranged longitudinally along the chassis, and both ends of the bottom cross beams are respectively welded and fixed to the two bottom side beams 20. The multiple bottom cross beams and the two bottom side beams 20 form a frame structure. Among them, longitudinally on the chassis, the bottom cross beam at the foremost end is the front bottom cross beam 11, the bottom cross beam at the rearmost end is the sill 12, and the other bottom cross beams are intermediate bottom cross beams 10. The steel floor 30 is laid on the frame structure, and the steel floor 30 is fixed to the front bottom cross beam 11 and the sill 12 by continuous welding. For example, the front end and the rear end of the steel floor 30 respectively overlap on the front bottom cross beam 11 and the sill 12, and continuous welding is performed on the overlapping part of the steel floor 30 and the front bottom cross beam 11. Similarly, continuous welding is performed on the overlapping part of the steel floor 30 and the sill 12. From below the chassis, intermittent welding is performed on the connection between the lower surface of the steel floor 30 and the top of the intermediate bottom cross beam 10, so that the tops of the multiple intermediate bottom cross beams 10 are fixedly connected to the steel floor 30. The bottom sealing plate 40 covers the lower part of the frame structure, and its four sides are respectively welded and fixed to the two bottom side beams 20, the front bottom cross beam 11, and the sill 12 by continuous welding.

[0025] In the present utility model, since the bottom sealing plate 40 is provided at the bottom of the frame structure composed of the bottom side beam 20 and the bottom cross beam, and the periphery of the bottom sealing plate 40 is respectively fixed to the two bottom side beams and the two outermost bottom cross beams by continuous welding, a closed space is formed by the bottom sealing plate 40, the steel floor 30, the two bottom side beams 20, and the two outermost bottom cross beams. The other multiple bottom cross beams are all enclosed in this closed space. Therefore, only intermittent welding is required for the other multiple bottom cross beams to be fixed to the steel floor 30. By means of the closed space, bacteria are prevented from hiding in the gap between the steel floor and the bottom cross beam. At the same time, the steel floor does not need to be continuously welded to all the bottom cross beams in real time, reducing the welding workload and preventing the steel floor from deforming due to a large amount of welding, ensuring that the steel floor has better flatness.

[0026] The above-mentioned front bottom crossbeam 11 includes a web 111 and a lower wing plate 112 bent from the bottom of the web 111 to one side. The sill 12 includes a web 121 and a lower wing plate 122 bent from the bottom of the web 121 to one side. The front end portion of the bottom sealing plate 40 is fillet welded to the lower wing plate 112 of the front bottom crossbeam 11, and the rear end portion of the bottom sealing plate 40 is fillet welded to the lower wing plate 122 of the sill 12. Specifically, the front end portion and the rear end portion of the bottom sealing plate 40 respectively form a flat plate connecting portion 43, and the two flat plate connecting portions 43 respectively overlap on the lower surface of the lower wing plate 112 and the lower surface of the lower wing plate 122. After the two flat plate connecting portions 43 overlap with the lower wing plate 112 and the lower wing plate 122, continuous welding is performed on the overlapping gaps. At each of the four corner portions of the chassis, a bottom corner member 50 is provided. The distance by which the bottom surface of the bottom corner member 50 is offset downward compared to the bottom of the bottom sealing plate 40 is H, where H≥0, that is to say, the bottom of the bottom sealing plate 40 is higher than the bottom surface of the bottom corner member 50, or the bottom of the bottom sealing plate 40 is flush with the bottom surface of the bottom corner member 50. In this way, the chassis of the container will not affect the stacking, piling, and transshipment of the container.

[0027] Among multiple bottom crossbeams, except for the front bottom crossbeam 11 and the sill 12, the middle bottom crossbeam 10, as other bottom crossbeams, is connected to the lower surface of the steel floor 30 by intermittent welding, and the cross-sectional shape of the middle bottom crossbeam 10 is L-shaped; in other embodiments, the cross-sectional shape of the middle bottom crossbeam 10 can also be set as I-shaped or C-shaped.

[0028] In the present utility model, the bottom side beam 20 is formed by bending a plate member. The main body portion of the bottom side beam 20 is a web extending vertically. The two side edges of the bottom sealing plate 40 are respectively butted against the inner side surfaces of the webs of the two bottom side beams 20, and then the two side edges of the bottom sealing plate 40 are respectively butt welded to the inner side surfaces of the webs of the two bottom side beams 20. Specifically, the bottom sealing plate 40 and the bottom side beam 20 are fixed by continuous welding.

[0029] The above-mentioned bottom sealing plate 40 is arranged in a wavy structure, that is, the plate is processed into a corrugated plate by bending or other suitable processing techniques to form the bottom sealing plate 40, which includes a plurality of wave crests 42 and a plurality of wave troughs 41. The plurality of wave crests 42 and the plurality of wave troughs 41 are arranged at intervals along the longitudinal direction of the underframe. By arranging the bottom sealing plate 40 in a wavy structure, the strength of the bottom sealing plate 40 can be improved, which is then beneficial to enhancing the strength of the entire underframe. Moreover, the bottom sealing plate 40 itself has relatively high strength and is not easily deformed, ensuring that the bottom sealing plate 40 can better seal the bottom of the underframe. On the basis that the bottom sealing plate 40 adopts a wavy structure, the front end and the rear end of the bottom sealing plate 40 are set as flat plate connecting parts 43, so as to facilitate the bottom sealing plate 40 to overlap with the front bottom cross beam 11 and the sill 12 and perform continuous welding. In addition, when the bottom sealing plate 40 adopts a wavy structure, on the premise of ensuring its strength, a thinner plate can be selected for processing to reduce the self-weight of the underframe. Specifically, the thickness of the bottom sealing plate is D1, and the thickness of the steel floor is D2, where D1 / D2 is 0.3 - 0.6.

[0030] It should be noted that in other embodiments, the bottom sealing plate 40 can also adopt a flat plate structure, and the purpose of encapsulating the bottom of the underframe can also be achieved.

[0031] The container of the present utility model includes the underframe of the above-mentioned container, and the other structures of the container are the same as those of the prior art and will not be described in detail here.

[0032] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The bottom frame of the container is characterized by: It includes two bottom side beams, multiple bottom cross beams, steel floor, and bottom cover plate; Two bottom side beams extend in the longitudinal direction of the bottom frame and are respectively located on both sides of the bottom frame, a plurality of bottom cross beams are arranged in the longitudinal direction of the bottom frame and connected between the two bottom side beams, and the plurality of bottom cross beams and the two bottom side beams form a frame structure; The steel floor is laid on the frame structure, and is fixed to the two outermost bottom beams by continuous welding, and the lower surface of the steel floor is fixed to the top of other bottom beams by intermittent welding; the bottom cover plate is sealed under the frame structure, and its edge is fixed to the two bottom side beams and the two outermost bottom beams by continuous welding.

2. The bottom frame of the container according to claim 1, characterized in that: The two outermost bottom cross beams each include a web plate, a lower wing plate bent to one side from the bottom of the web plate, and two ends of the bottom sealing plate are respectively welded to the lower wing plates of the two outermost bottom cross beams.

3. The bottom frame of the container according to claim 2, characterized in that: Of the two outermost bottom cross beams, the bottom cross beam located at the front end of the base frame is the end bottom cross beam, and the bottom cross beam located at the rear end of the base frame is the door sill. A flat plate connecting portion is formed at each end of the bottom sealing plate, and the two flat plate connecting portions are respectively welded to the lower surface of the lower wing plate of the end bottom cross beam and the lower surface of the lower wing plate of the door sill.

4. The bottom frame of the container according to claim 3, characterized in that: Each of the four end corners of the bottom frame is provided with a bottom corner piece, and the bottom surface of the bottom corner piece is offset downward by a distance H compared to the bottom of the bottom sealing plate, wherein H≥0.

5. The bottom frame of the container according to claim 3, characterized in that: The cross-sections of the other bottom beams except the end bottom beams and the door sills are L-shaped, I-shaped or C-shaped.

6. The bottom frame of the container according to claim 1, characterized in that: The two sides of the bottom sealing plate are respectively butt-welded to the inner side surfaces of the two bottom side beams.

7. The bottom frame of a container according to claim 1, characterized in that: The bottom sealing plate is in a wave shape, and is provided with a plurality of wave crests and a plurality of wave troughs, and the plurality of wave crests and a plurality of wave troughs are arranged at intervals along the longitudinal direction of the bottom frame.

8. The bottom frame of the container according to claim 7, characterized in that: The thickness of the bottom cover plate is D1, and the thickness of the steel floor is D2, where D1 / D2 is 0.3~0.

6.

9. A container, characterized in that: A chassis comprising a container as described in any one of claims 1-8.

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