CN1718520A

CN1718520A - Bottom crossbeam for container

Info

Publication number: CN1718520A
Application number: CN 200410028037
Authority: CN
Inventors: 姚谷
Original assignee: China International Marine Containers Group Co Ltd
Current assignee: China International Marine Containers Group Co Ltd
Priority date: 2004-07-07
Filing date: 2004-07-07
Publication date: 2006-01-11
Anticipated expiration: 2024-07-07
Also published as: CN100333980C

Abstract

A transverse bottom beam of container for higher strength of container is composed of a bottom plate, a top plate for installing floor board, and a side plate for connection bottom and top plates. It features that its top plate has at least one concave step for accepting a central beam or an angle steel on it to make the top surfaces of central beam or angular steel and transverse bottom beam in a same level.

Description

The freight container bottom cross beam

Technical field

The present invention relates to freight container, more particularly, relate to a kind of freight container bottom cross beam.

Background technology

Freight container from 1956 since the U.S. at first brings into use, passed through 40 years of development.At present, freight container traffic is widely used in the whole world.Traditional goods general purpose container generally is made up of both walls, door end, front end, top board, floor and Undercarriage structure.Floor wherein and Undercarriage structure are formed the carrying structure of goods in the case jointly.

As shown in Figures 1 to 4, in the Undercarriage structure of traditional freight container, weld with bottom side beams 11,12 respectively at the two ends of many C type bottom cross beams 3, to constitute the integral body of rigidity.Usually can be on C type bottom cross beam 3,5 laying depth be the wood covering 2 of 28 millimeter to constitute the loading floor, bottom cross beam 3 wherein is common bottom cross beams, bottom cross beam 5 is the bottom cross beams under the horizontally-spliced seam.Wood covering wherein is spliced by polylith 21,22,23, therefore has a lot of pieces; In order to solve the sealing problem of edge joint position, meeting laying floor central sill 6 and floor angle steel 7 between bottom cross beam and floor seals with realization by breaking sealant then usually.Because there are certain thickness of slab in floor central sill, floor angle steel, therefore the floor at this place must be offered tenon mouth 8 and fits tightly with formation.Though aforesaid way can solve sealing problem, on wood covering, offer the strength degradation that tenon mouth 8 can cause wood covering, particularly at the periphery of wood covering, in use easier usually being damaged.

Summary of the invention

Above-mentioned defective at prior art, thereby will solving, the present invention needs on wood covering, offer the problem that the tenon mouth can cause the wood covering strength degradation in the Undercarriage structure that has freight container now, and a kind of sealing and requirement of strength that both can satisfy Undercarriage structure is provided, can avoid the freight container bottom cross beam of mortise on wood covering again.

The technical solution adopted for the present invention to solve the technical problems is: construct a kind of freight container bottom cross beam, this bottom cross beam by the bottom surface, the side that is used to the end face on floor is installed and be connected described bottom surface and end face forms; Wherein, be provided with a recessed ledge frame at least on the end face of described bottom cross beam, the degree of depth of this recessed ledge frame preferably equals the thickness of described floor central sill or floor angle steel, so, does not just need to offer the tenon mouth on the floor again.

Among the present invention, described recessed ledge frame can be provided in a side of the end face middle part of bottom cross beam, the one or more central sill recessed ledge frame that are used to install the floor central sill; Also can be provided in a side of at least one end of bottom cross beam end face, the angle steel recessed ledge frame that is used to install the floor angle steel, can also respectively be provided with a described angle steel recessed ledge frame at the two ends of described bottom cross beam end face certainly.

After adopting freight container of the present invention with bottom cross beam, floor central sill and floor angle steel can be put in the corresponding recessed ledge frame, make the upper surface of floor central sill and floor angle steel concordant substantially with the end face of bottom cross beam, thereby wood covering can directly be covered thereon, do not need mortise on wood covering again, finally can strengthen the intensity of wood covering greatly, and significantly improve freight container service life of container floor particularly.

Description of drawings

The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:

Fig. 1 is the partial top view of chassis of container structure;

Fig. 2 is the existing I portion enlarged diagram of chassis of container structure in Fig. 1;

Fig. 3 is the existing A-A cutaway view of chassis of container structure in Fig. 1;

Fig. 4 is the existing B-B cutaway view of chassis of container structure in Fig. 1;

Fig. 5 is the schematic perspective view of bottom cross beam in a preferred embodiment of the invention;

Fig. 6 is that the D of Fig. 5 is to view;

Fig. 7 is the I portion enlarged diagram of bottom cross beam shown in Figure 5 when being loaded on chassis of container structure shown in Figure 1;

Fig. 8 is the A-A cutaway view Amplified image of bottom cross beam shown in Figure 5 when being loaded on chassis of container structure shown in Figure 1;

Fig. 9 is the B-B cutaway view Amplified image of bottom cross beam shown in Figure 5 when being loaded on chassis of container structure shown in Figure 1.

The specific embodiment

A preferred embodiment of the present invention such as Fig. 5 are to shown in Figure 9.

As can be known from Fig. 5 and Fig. 6, freight container in the present embodiment is a C shape structure with bottom cross beam 3, is made up of end face 31, bottom surface 32 and side 33, is provided with a plurality of recessed ledge frame 9 on its end face 31, comprise the central sill recessed ledge frame in the middle of being located at, and the angle steel recessed ledge frame that is located at the end; A jump is arranged between the upper surface of these recessed ledge frame and the end face 31, and its degree of depth can be between 1 to 10mm, but should be substantially equal to the thickness of floor central sill and floor angle steel.

When the bottom cross beam in this enforcement is loaded in the chassis of container structure shown in Figure 1, the two ends of bottom cross beam 3 respectively with the welding of the medial surface of bottom side beams 11,12; On bottom cross beam 3, be overlapped with floor angle steel 7 and floor central sill 6, thereby constitute a complete rigid frame structure; Can lay wood covering 21,22,23 above it then, and use ground plate bolt 4 that wood covering and rigid frame are coupled together, form a firm payload platform.

As Fig. 7, Fig. 8, shown in Figure 9, compare with traditional chassis of container structure, when floor central sill 6 was installed, it can sink in the recessed ledge frame 9, makes its upper surface concordant substantially with the end face of bottom cross beam; Simultaneously, floor angle steel 7 also can sink in the recessed ledge frame 9, makes its upper surface concordant substantially with the end face of bottom cross beam; So, just wood covering directly can be laid thereon, and do not needed again by offering tenon mouth 8 in the conventional confguration like that.

As seen,, can on the basis of identical materials cost, remedy the loss of strength that the container wood floor mortise brings, thereby improve freight container service life of container floor particularly by recessed ledge frame being set on bottom cross beam at freight container.

The present invention is not limited to the above-mentioned specific embodiment, for example can only the central sill recessed ledge frame is set on bottom cross beam or the angle steel recessed ledge frame only is set; And wherein the cross sectional shape of bottom cross beam can also be I type, Ω type or type.

Claims

1, a kind of freight container bottom cross beam, this bottom cross beam by the bottom surface, the side that is used to the end face on floor is installed and be connected described bottom surface and end face forms;

It is characterized in that, on the end face of described bottom cross beam, be provided with a recessed ledge frame at least.

2, freight container bottom cross beam according to claim 1 is characterized in that, described recessed ledge frame is the end face middle part that is located at bottom cross beam, the one or more central sill recessed ledge frame that are used to install the floor central sill.

3, container bottom cross beam according to claim 1 is characterized in that, described recessed ledge frame is at least one end that is located at the bottom cross beam end face, the angle steel recessed ledge frame that is used to install the floor angle steel.

4, container bottom cross beam according to claim 3 is characterized in that, respectively is provided with a described angle steel recessed ledge frame at the two ends of described bottom cross beam end face.

5, according to each described container bottom cross beam among the claim 1-4, it is characterized in that the degree of depth of described recessed ledge frame slightly equals the thickness of described floor central sill or floor angle steel.

According to each described container bottom cross beam among the claim 1-4, it is characterized in that 6, the cross sectional shape of described bottom cross beam is any in C type, I type, Ω type or the type.