CN2548961Y - Bottom bracket structure of container - Google Patents

Abstract

The utility model relates to a container underframe structure. The container underframe structure is composed of longitudinally arranged bottom side beams and horizontally arranged bottom beams, and is an integral frame body. It is characterized in that the bottom side beams are upwardly curved Arc-shaped, the highest point of the arc is higher than the line connecting the corner pieces at both ends by a certain distance. Because the bottom side beam of the utility model uses the curved structure of the bottom side beam instead of the horizontal straight line structure of the traditional container, the rigidity and strength of the bottom frame structure are improved, the material consumption and the performance level of the material are reduced, and the performance level of the material is greatly reduced. The cost of materials reduces the self-weight of the bottom structure of the box body, thereby reducing the self-weight of the box body, increasing the loading weight of the box body, and prolonging the service life of the container.

Description

A container chassis structure

technical field

The utility model relates to a container, in particular to an underframe structure of a container.

Background technique

Containers were first used in the United States in 1956. After more than 40 years of development, containerized transportation has been widely used around the world, and will play an increasingly important role with the further globalization of world trade.

A general cargo container generally consists of a side wall 1, a door end 2, a front end 3, a top plate 4, an underframe structure 5 and a floor 6 (see Figure 1), wherein the underframe structure 5 and the floor 6 together form the cargo carrying area of the container , the bottom structure. The bottom structure is the key load-bearing structure of the container. It directly bears the weight of the goods in the container and is the main load-bearing part of the container. Its material consumption and material cost account for the highest proportion among the major components of the container.

The traditional container underframe structure (as shown in Figure 2) is composed of two straight longitudinal bottom side beams 51 distributed on the outside and a plurality of transverse bottom beams 52 between the bottom side beams. Structurally, no longitudinal beams parallel to the bottom side beams are arranged between the bottom side beams, and the two ends of each bottom cross beam 52 are welded with the bottom side beams 51 to form a rigid frame. The disadvantage of this bottom structure is that in order to improve the carrying capacity of the container, high-performance steel (such as thickness, material, etc.) needs to be used. The material cost is high and the container body is heavy. In the case of a large load, It will adversely affect the structure of the container body, thereby affecting the service life of the container.

Utility model content

The technical problem to be solved by the utility model is to provide a container underframe structure that can not only improve the strength of the bottom structure of the container, but also save material cost and reduce its own weight.

The technical solution of the utility model to solve the above-mentioned problems is: to design a container underframe structure, which is composed of longitudinal bottom side beams and transverse bottom beams, forming an integral frame body, characterized in that the bottom side beams are curved upwards shape.

Two corner fittings are provided at both ends of the bottom side beam, and the arc-shaped highest point of the bottom side beam is higher than the connecting line of the corner fittings at both ends by a certain distance.

There are two bottom side beams.

The bottom beams are fixedly connected between the bottom side beams at a certain interval.

The bottom side beam and the bottom cross beam can be connected by welding.

The cross-sectional structure of the bottom side beam can be I-shaped, C-shaped, square frame and other suitable structures.

At least one longitudinal beam parallel to the bottom side beams may be arranged between the bottom side beams on the container underframe structure. The longitudinal beam is also in an upwardly curved arc shape.

There are at least two longitudinal beams.

The underframe structure of the container provided by the utility model adopts an arc structure instead of the traditional horizontal straight line structure, which improves the rigidity and strength of the underframe structure, improves the utilization rate of materials, reduces the cost of materials, and reduces the weight of the box body. The self-weight improves the loading weight of the box. The utility model is further described below in conjunction with accompanying drawings and embodiments.

Description of drawings

Fig. 1 is the basic structure schematic diagram of general dry goods container;

Fig. 2 is the bottom structure schematic diagram of traditional universal dry cargo container;

Fig. 3 is the structural schematic diagram before carrying of traditional universal dry cargo container;

Fig. 4 is the structural representation when traditional universal dry cargo container is loaded;

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

Fig. 6 is a schematic structural view of the general dry cargo container of the present invention before loading;

Fig. 7 is a schematic structural view of the utility model when the universal dry cargo container is loaded;

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

Fig. 9 is a structural schematic diagram of the bottom side beam of the universal dry cargo container of the present invention;

FIG. 10 is a sectional view of the C-C section in FIG. 9 .

Detailed ways

As shown in FIG. 1 , the basic structure of a general-purpose dry cargo container includes a box side wall 1 , a door end 2 , a front end 3 , a top plate 4 , an underframe structure 5 and a floor 6 .

Please refer to FIG. 1 and FIG. 2 together. The general container chassis structure 5 is mainly composed of two bottom side beams 51 , several bottom beams 52 and a floor 6 . The two ends of the bottom beam 52 are respectively welded to the side of the bottom side beam 51, and the bottom beam 52 is covered with a floor 6, and the floor 6 is fastened on the bottom beam 52 to form a rigid load-bearing platform structure. In the traditional container underframe structure 5 , the bottom side beams 51 and the bottom cross beams 52 both adopt a horizontal straight line structure.

Please refer to FIG. 3 , where the plane where the dot-dash line 10 is located represents the ground plane, the load-bearing surface of the vehicle or the top plane of another container, and the corner pieces 8, 8' are placed on this plane.

As shown in FIG. 4 , when the general dry cargo container is fully loaded, the bottom structure will undergo a downward deformation due to stress, causing the corner posts 9 to incline, thereby affecting the overall structure of the container. If the deformation exceeds the plane where the dot-dash line 10 is located, and the plane where the dot-dash line 10 is located represents the top of a container, the harm to the stacking of the container is obvious.

As shown in Fig. 5, when the general-purpose dry cargo container is unloaded, the bottom structure produces permanent deformation, which is because the stress generated by the load 11 on the bottom side beam 51 exceeds the yield limit of its material, even if the deformation is closer to the dotted line 10 However, it will still have an impact on the components connected to the bottom structure, such as the inclination of the corner column 9. The ideal state is that after the general-purpose dry cargo container is unloaded, it can return to the state before it is loaded as shown in Fig. 3 .

Fig. 6 is a side view of the universal dry cargo container of the present invention before it is loaded, similar to Fig. 3, the plane where the dotted line 10 is located represents the ground plane, the carrying surface of the vehicle or the top of another container, and the corner fittings 8, 8' are placed on that plane. The bottom side beam 51 of the container of the utility model is arc-shaped relative to the plane where the dot-dash line 10 is located and has a certain arc height.

As shown in Figure 7, when the universal dry cargo container of the utility model is fully loaded, the bottom structure is stressed, resulting in a downward deformation, but because the arc structure of the bottom side beam 51 provides good support rigidity, the deformation does not exceed the point Compared with FIG. 4 , the plane where the scribed line 10 is located has obvious advantages. At the same time, this will also greatly improve the inward inclination of the corner post 9 compared with FIG. 4 .

As shown in Figure 8, when the general-purpose dry cargo container of the present invention is unloaded, because the arc-shaped structure of the side beam 51 has good supporting rigidity, the permanent deformation of the bottom structure of the container is very small, which is closer to the ideal state, that is, as shown in Figure 6 The status shown, which can better protect the box structure of the container and prolong the service life.

As shown in FIG. 9 , a schematic structural view of the bottom side beam 51 of the general dry cargo container of the present invention, the cross-sectional structure of the bottom side beam of the present invention can be any one of I type, C type and square frame type.

Fig. 10 is a cross-sectional view of C-C in Fig. 9 .

On the premise that the rated load remains unchanged and the strength of the bottom side beam is guaranteed, the technology of the utility model can reduce the cross-sectional area of the bottom side beam 51 or reduce its material performance requirements, so as to reduce the material cost and reduce the weight of the box.

Compared with the traditional bottom side beam, the bottom side beam structure of the universal container of the utility model has the following advantages: under the condition of passing the ISO test, the bottom side beam reduces the material consumption or material grade, reduces the material cost, improves the container carrying capacity and Reduce the weight of the box body, so as to achieve the purpose of increasing the maximum loading capacity.

Claims (10)

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.

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