CN2548961Y

CN2548961Y - Bottom bracket structure of container

Info

Publication number: CN2548961Y
Application number: CN 02271596
Authority: CN
Inventors: 王石生
Original assignee: China International Marine Containers Group Co Ltd
Current assignee: China International Marine Containers Group Co Ltd
Priority date: 2002-07-05
Filing date: 2002-07-05
Publication date: 2003-05-07
Anticipated expiration: 2012-07-05

Abstract

The utility model relates to a container underframe structure, comprising a bottom side beam vertically arranged and a bottom beam horizontally arranged, which shows a whole frame body shape. The utility model is characterized in that the bottom side beam shows an upward bended arc shape, the highest point of the arc shape is higher than the connection line of the corner parts at the two ends with a certain distance. The utility model general dry cargo container uses the arc shape structure bottom side beam to replace the horizontal linear structure bottom side beam of the traditional container, which improves the rigidity and the strength of the underframe structure, and reduces the material using amount and the material performance level, and greatly decreases the material cost, and decreases the dead weight of the box body bottom structure to reduce the box body dead weight, and improves the box body loading weight, and prolongs the service life of the container.

Description

A kind of chassis of container structure

Technical field

The utility model relates to freight container, particularly relates to a kind of Undercarriage structure of freight container.

Background technology

Freight container was at first brought into use in the U.S. from 1956, and through 40 years of development, the containerzation transportation is widely used in the whole world, and will play a greater and greater role along with the further globalization of world commerce.

The goods general purpose container is generally formed (seeing also Fig. 1) by side wall 1, door end 2, front end 3, top board 4, Undercarriage structure 5 and floor 6, wherein, and Undercarriage structure 5 and the floor 6 common cargo carrying district that forms freight container, i.e. bottom constructions.Bottom construction is the crucial carrying structure of freight container, is directly bearing the weight of goods in the case, is the main carrying force part of freight container, and its material consumption and material cost proportion in each big parts of freight container is the highest.

Traditional chassis of container structure (as shown in Figure 2) is made up of two straight vertical bottom side beams 51 that are distributed in the outside and many horizontal bottom cross beams 52 that are positioned between bottom side beams, there be not to be provided with the longeron parallel between the structural bottom side beams of described traditional chassis of container with bottom side beams, every foundation crossbeam 52 two ends and bottom side beams 51 welding constitute rigid frame.The shortcoming of this bottom construction is, in order to improve the load-carrying capacity of freight container, need to adopt High Performance steel (as the requirement of aspects such as thickness, material), material cost is high and cause container body from great, under the bigger situation of load, can produce harmful effect to the container body structure, and then influence the service life of freight container.

The utility model content

Technical problem to be solved in the utility model is, a kind of intensity that can improve container bottom structure is provided, again can the saving in material cost and reduce the Undercarriage structure of the freight container of its deadweight.

The technical scheme that the utility model addresses the above problem is: design a kind of Undercarriage structure of freight container, be made up of vertical bottom side beams and horizontal bottom cross beam, be a general frame body, it is characterized in that this bottom side beams is the arc of K/UP.

The two ends of described bottom side beams are provided with two corner fittings, and the arc vertex of this bottom side beams exceeds the line certain distance of two ends corner fittings.

Described bottom side beams is two.

Described bottom cross beam is to be fixed between the bottom side beams at certain intervals.

Described bottom side beams can be connected by welding manner with bottom cross beam.

The cross-sectional structure of described bottom side beams can be I type, C type, frame type and other structure that is fit to.

Between the structural bottom side beams of described chassis of container at least one longeron parallel with bottom side beams can be set.Described longeron also is the arc that is K/UP.

Described longeron is at least two.

The Undercarriage structure of the freight container that the utility model provides adopts arcuate structure to replace traditional horizontal linear structure, has improved the rigidity and the intensity of Undercarriage structure, improved the degree of utilization of material, reduce the cost of material, alleviated the deadweight of casing, improved the loaded weight of casing.Further the utility model is described below in conjunction with drawings and embodiments.

Description of drawings

Fig. 1 is the basic structure scheme drawing of general dry cargo container;

Fig. 2 is the bottom construction scheme drawing of traditional common dry cargo container;

Fig. 3 is the preceding structural representation of traditional common dry cargo container carrying;

Structural representation when Fig. 4 carries for the traditional common dry cargo container;

Fig. 5 is the structural representation after the traditional common dry cargo container unloading;

Fig. 6 is the structural representation before the general dry cargo container carrying of the utility model;

Structural representation when Fig. 7 is the carrying of the general dry cargo container of the utility model;

Fig. 8 is the structural representation after the general dry cargo container unloading of the utility model;

Fig. 9 is a kind of structural representation of the general dry cargo container bottom side beams of the utility model;

Figure 10 is the C-C cross-sectional view of Fig. 9.

The specific embodiment

As shown in Figure 1, the basic composition structure of general dry cargo container has casing side wall 1, door end 2, front end 3, top board 4, Undercarriage structure 5 and floor 6.

Please consult Fig. 1 and Fig. 2 together, general chassis of container structure 5 mainly is made up of two foundation curb girders 51, some foundation crossbeams 52 and floor 6.Weld with the side of bottom side beams 51 respectively at bottom cross beam 52 two ends, is coated with floor 6 on bottom cross beam 52, and this floor 6 is fastened on the bottom cross beam 52, constitutes one rigidity load carrying platform structure.In traditional chassis of container structure 5, bottom side beams 51 and bottom cross beam 52 all adopt the horizontal linear structure.

See also Fig. 3, wherein, the top plan of carrying surface or another freight container of ground level, transportation means is represented on the plane at long and short dash line 10 places, corner fittings 8,8 ' be placed on this plane.

As shown in Figure 4, when general dry cargo container at full load, bottom construction can produce a downward distortion owing to stressed, causes corner post 9 to slope inwardly, and then influences the integral structure of freight container.If this distortion surpasses the plane at long and short dash line 10 places, and the plane at these long and short dash line 10 places represents is the top of a freight container, and this harm of bringing for the stacking of freight container is conspicuous.

As shown in Figure 5, when general dry cargo container unloads, bottom construction promptly produces permanent deformation, this is because the stress that 11 pairs of bottom side beams of load 51 produce has surpassed the yield limit of its material, even this is out of shape the rule plane at 10 places of the points of proximity more, but can the parts with the bottom construction binding be exerted an influence, produced introversion as corner post 9.Perfect condition is after general dry cargo container unloading, can return to the preceding state of unloaded shown in Figure 3.

Fig. 6 is the lateral plan before the general dry cargo container carrying of the utility model, and similar to Fig. 3, the top of carrying surface or another freight container of ground level, transportation means is represented on the plane at long and short dash line 10 places, corner fittings 8,8 ' be placed on this plane.The bottom side beams 51 of the utility model freight container is curved and certain camber arranged with respect to the plane at long and short dash line 10 places.

As shown in Figure 7, the general dry cargo container at full load of the utility model, bottom construction is stressed, produce a downward distortion, but, make this distortion not surpass the plane at long and short dash line 10 places because the arcuate structure of bottom side beams 51 provides the good supporting rigidity, compare with Fig. 4, its advantage is apparent, and simultaneously, this also will make the degree that slopes inwardly of corner post 9 compare with Fig. 4 and have greatly improved.

As shown in Figure 8; when the general dry cargo container of the utility model unloads; because the arcuate structure of this curb girder 51 has the good supporting rigidity; it is very little to make container bottom structure produce permanent deformation; more approach perfect condition; be state shown in Figure 6, the body structure that this can better protect freight container increases the service life.

As shown in Figure 9, a kind of structural representation of the general dry cargo container bottom side beams 51 of the utility model, the cross-sectional structure of the utility model bottom side beams can be in I type, C type and the frame type any one.

Figure 10 is a C-C cross-sectional view among Fig. 9.

Constant in rated load, guarantee can reduce bottom side beams 51 cross-sectional areas or reduce its material capability requirement by the utility model technology under the prerequisite of bottom side beams intensity, reach and reduced material cost, alleviate the heavy purpose of case.

Bottom side beams structure and traditional bottom side beams of the utility model general purpose container relatively have following advantage: under the condition by the ISO test, bottom side beams has reduced material usage or material rate, reduced material cost, improve the freight container load-carrying capacity and reduced the casing deadweight, thereby reached the purpose that improves maximum loading.

Claims

1, a kind of chassis of container structure comprises the bottom side beams of vertical setting and the bottom cross beam of horizontally set, is a general frame body, it is characterized in that this bottom side beams is the arc of K/UP.

2, chassis of container structure according to claim 1 is characterized in that, the two ends of described bottom side beams are provided with two corner fittings, and the arc vertex of this bottom side beams exceeds the line certain distance of two ends corner fittings.

3, chassis of container structure according to claim 1 is characterized in that, described bottom side beams is two.

4, chassis of container structure according to claim 1 is characterized in that, described bottom cross beam is to be fixed between the bottom side beams at certain intervals.

5, chassis of container structure according to claim 1 is characterized in that, described bottom cross beam is connected with welding manner with bottom side beams.

6, chassis of container structure according to claim 1 is characterized in that, the cross-sectional structure of described bottom side beams can be in I type, C type and the frame type shape any one.

7, chassis of container structure according to claim 1 is characterized in that, can reach and reduce material cost by reducing described bottom side beams cross-sectional area or reducing its material capability requirement, alleviates the heavy purpose of case.

8, chassis of container structure according to claim 1 is characterized in that, between the structural described bottom side beams of chassis of container at least one longeron parallel with bottom side beams can be set.

9, chassis of container structure according to claim 8 is characterized in that, described longeron also is the arc that is K/UP.

10, according to Claim 8 or 9 described chassis of container structures, it is characterized in that described longeron is at least two.