Container chassis longitudinal beam connecting structure and container

Abstract

The utility model discloses a container underframe longitudinal beam connecting structure and container, container underframe longitudinal beam connecting structure includes the threshold, underframe and floor, the utility model's emphasis lies in: underframe includes two bottom side beams, a plurality of bottom cross beams, a plurality of bottom longitudinal beams and connecting piece, and the bottom cross beam of a plurality of bottom cross beams with threshold adjacent is end cross beam, a plurality of bottom longitudinal beams are located between end cross beam with the threshold, and the front end of a plurality of bottom longitudinal beams is welded with the back lateral wall of end cross beam, connecting piece is located between a plurality of bottom longitudinal beams with threshold and extends along the transverse direction, and the front lateral wall of connecting piece is welded with a plurality of bottom cross beams, and the bottom surface of connecting piece and the front lateral wall of threshold form a flat welding between the extension of transverse direction, and the flat welding is filled with solder, so that the back lateral wall of connecting piece is welded on the front lateral wall of threshold, when underframe and threshold group weld, and connecting piece and threshold form a flat welding between, thereby realize a plurality of bottom longitudinal beams and threshold flat welding, and convenient welding.

Description

Technical Field

[0001] This utility model relates to the field of container technology, specifically to a container chassis longitudinal beam connection structure and a container. Background Technology

[0002] The container consists of a sill, a base frame, and a floor. The base frame includes two bottom side beams, multiple bottom crossbeams, and multiple bottom longitudinal beams. The two bottom side beams are located on either side of the bottom side beams and in front of the sill. The multiple bottom crossbeams are welded between the two bottom side beams and distributed along the longitudinal direction of the base frame. The multiple bottom longitudinal beams are distributed along the transverse direction of the base frame, and their front and rear ends are welded to the bottom crossbeams and the sill, respectively. The floor is laid on the top surface of the base frame. However, when welding the multiple bottom longitudinal beams to the sill, it is necessary to perform overhead welding in a pit. During overhead welding, the curved weld beads formed between the bottom longitudinal beams and the sill make the welding difficult and affect work efficiency. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a container chassis longitudinal beam connection structure and container in which multiple bottom longitudinal beams are welded to the sill via a connector to reduce welding difficulty and improve welding quality.

[0004] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions: The container chassis longitudinal beam connection structure includes the sill, chassis, and floor; The threshold extends along the lateral direction of the container; The base frame includes two bottom side beams, multiple bottom cross beams, multiple bottom longitudinal beams, and connectors. The two bottom side beams are respectively located on both sides of the base frame and in front of the threshold, extending along the longitudinal direction of the container. The multiple bottom cross beams are distributed along the longitudinal direction and their ends are welded to the two bottom side beams respectively. One of the multiple bottom cross beams adjacent to the threshold is an end cross beam. The multiple bottom longitudinal beams are located between the end cross beam and the threshold and are distributed along the transverse direction. The front ends of the multiple bottom longitudinal beams are welded to the rear side wall of the end cross beam. The connector is located between the multiple bottom longitudinal beams and the threshold and extends in the transverse direction. The front sidewall of the connector is welded to the multiple bottom transverse beams. A flat weld bead extending in the transverse direction is formed between the bottom surface of the connector and the front sidewall of the threshold. The flat weld bead is filled with solder, so that the rear sidewall of the connector is welded to the front sidewall of the threshold. The floor is laid on the top surface of the multiple bottom crossbeams and the multiple bottom longitudinal beams.

[0005] Furthermore, the connector has a connecting plate on its front side, the front sidewall of the connecting plate is welded to the end face of the multiple bottom longitudinal beams, and a lower extension plate is provided on the rear side of the lower end of the connecting plate, the rear sidewall of the lower extension plate is welded to the front sidewall of the sill.

[0006] Furthermore, an upper extension plate is provided on the rear side of the upper end of the connecting plate, and the rear sidewall of the upper extension plate is welded to the threshold.

[0007] Furthermore, the upper and lower ends of the connector are bent outwards in one piece to form an upper extension plate and a lower extension plate, respectively. The upper extension plate and the lower extension plate are both perpendicular to the connecting plate, and the rear sidewalls of the upper extension plate and the lower extension plate are welded to the front sidewall of the threshold.

[0008] Furthermore, the connector is a square tube.

[0009] Furthermore, the connector is L-shaped, U-shaped, or plate-shaped, and its two end faces are respectively welded to the side walls of the two bottom side beams. The height of the connector is greater than or equal to the height of the bottom longitudinal beam, and the width of the connector is 10~80mm.

[0010] Furthermore, the bottom surface of the floor contacts the top surface of the multiple bottom crossbeams, the multiple bottom longitudinal beams, and the connector. The multiple bottom longitudinal beams include a connecting longitudinal beam. A slot is formed on the top surface of the rear end of the connecting longitudinal beam. The slot passes through the connecting longitudinal beam in the transverse direction and extends rearward through the rear end surface of the connecting longitudinal beam. The connector engages with the slot.

[0011] Furthermore, the connecting longitudinal beam is located in the middle of the base frame and its height is greater than the height of the connector, and the rear end face of the connecting longitudinal beam is welded to the front side wall of the sill.

[0012] The container chassis longitudinal beam connection structure of this utility model features a connector located between multiple bottom longitudinal beams and the sill. The front sidewall of the connector is welded to multiple bottom crossbeams, and a flat weld bead extending laterally is formed between the bottom surface of the connector and the front sidewall of the sill. The flat weld bead is filled with solder, allowing the rear sidewall of the connector to be welded to the front sidewall of the sill. In other words, multiple bottom longitudinal beams are integrated into a single structure through the connector. When the chassis and sill are welded together, a flat weld bead is formed between the connector and the sill, thus achieving a flat weld between multiple bottom longitudinal beams and the sill. This avoids the increased welding difficulty caused by multiple bends formed between the end faces of multiple bottom longitudinal beams and the sill due to direct welding to the front sidewall of the sill, thereby reducing welding difficulty, facilitating welding, and improving welding quality.

[0013] This utility model embodiment also provides a container, including the container chassis longitudinal beam connection structure described in any of the above embodiments. Attached Figure Description

[0014] Figure 1 This is a partial three-dimensional assembly schematic diagram of the longitudinal beam connection structure of the container chassis according to an embodiment of this utility model; Figure 2 for Figure 1 A partial exploded view; Figure 3 for Figure 1 A sectional view; Figure 4 for Figure 3 A magnified view of part A. Detailed Implementation

[0015] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments: like Figures 1 to 4 As shown, this utility model embodiment provides a container chassis longitudinal beam connection structure, applied to dry cargo containers, including a threshold 1, a chassis 2, and a floor 3.

[0016] like Figure 1 , Figure 2 As shown, the sill 1 extends along the transverse direction Y of the container and is located at the rear end of the container. The underframe 2 includes two bottom side beams 21, multiple bottom crossbeams 22, multiple bottom longitudinal beams 23, and connecting parts 24. The two bottom side beams 21 are respectively located on the left and right sides of the underframe 2 and in front of the sill 1, extending along the longitudinal direction X of the container. The multiple bottom crossbeams 22 are evenly distributed along the longitudinal direction X, and their left and right ends are welded to the two bottom side beams 21 respectively. Specifically, the left and right end faces of the bottom crossbeams 22 are welded to the side walls of the two bottom side beams 21 respectively. One of the bottom crossbeams 22 adjacent to the sill 1 is the end crossbeam 221. The multiple bottom longitudinal beams 23 are located between the end crossbeam 221 and the sill 1 and are evenly distributed along the transverse direction Y. The front ends of the multiple bottom longitudinal beams 23 are welded to the rear side wall of the end crossbeam 221.

[0017] like Figures 2 to 4As shown, the connector 24 is located between the multiple bottom longitudinal beams 23 and the sill 1 and extends in the transverse direction Y. The front sidewall of the connector 24 is welded to the multiple bottom transverse beams 22. A flat weld bead 4 extending in the transverse direction Y is formed between the bottom surface of the connector 24 and the front sidewall of the sill 1. The flat weld bead 4 is filled with solder, so that the rear sidewall of the connector 24 is welded to the front sidewall of the sill 1. That is, the multiple bottom longitudinal beams 23 form an integral structure through the connector 24. In other words, the multiple bottom longitudinal beams 23 are welded to the sill 1 through the connector 24. When the base frame 2 is welded to the sill 1, a flat weld bead 4 is formed between the connector 24 and the sill 1, thereby realizing the flat welding of the multiple bottom longitudinal beams 23 to the sill 1. This avoids the increased welding difficulty caused by the multiple bends formed between the end faces of the bottom longitudinal beams 23 and the front side wall of the sill 1 due to direct welding to the front side wall of the sill 1. This reduces the welding difficulty and facilitates welding. At the same time, it can also adjust the assembly error of the multiple bottom longitudinal beams 23. The reason is that due to the assembly error, the distance between the end face of the bottom longitudinal beam 23 and the front side wall of the sill 1 is different, that is, the size of the weld formed between the bottom longitudinal beam 23 and the sill 1 is inconsistent, which affects the welding. Therefore, by welding the bottom longitudinal beams 23 to the sill 1 through the connector 24, the situation where the bottom longitudinal beams 23 affect the welding due to assembly error can be prevented, thereby improving the welding quality.

[0018] like Figure 3 , Figure 4 As shown, the floor 3 is laid on the top surface of multiple bottom crossbeams 22 and multiple bottom longitudinal beams 23. The bottom surface of the floor 3 is in contact with the top surface of the multiple bottom crossbeams 22, multiple bottom longitudinal beams 23 and connectors 24, so that the multiple bottom crossbeams 22, multiple bottom longitudinal beams 23 and connectors 24 can support the floor 3.

[0019] The connector 24 is L-shaped, U-shaped, or plate-shaped; specifically, such as... Figure 3 , Figure 4As shown, the connector 24 has a connecting plate 241 on its front side. The front sidewall of the connecting plate 241 is welded to the end faces of multiple bottom longitudinal beams 23. To facilitate processing and welding, a lower extension plate 242 is provided on the rear side of the lower end of the connecting plate 241. The lower extension plate 242 is perpendicular to the connecting plate 241, that is, the connector 24 is an L-shaped connecting plate 241. The rear sidewall of the lower extension plate 242 is welded to the front sidewall of the sill 1 and forms a closed space with the floor 3, the sill 1, and the two bottom side beams 21. To enhance structural strength, in another embodiment, an upper extension plate (not shown) is provided on the rear side of the upper end of the connecting plate 241. The upper extension plate contacts the bottom surface of the floor 3 and forms a closed space with the floor 3, the lower extension plate 242, the sill 1, and the two bottom side beams 21. The rear sidewall of the upper extension plate is welded to the sill 1, and the top surface of the upper extension plate contacts the floor 3. For ease of processing, specifically, the upper and lower ends of the connector 24 are bent outwards to form an upper extension plate and a lower extension plate 242, respectively. The upper extension plate and the lower extension plate 242 are both perpendicular to the connecting plate 241, that is, the connector 24 is a U-shaped connecting plate 241. The rear sidewalls of the upper extension plate and the lower extension plate 242 are welded to the front sidewall of the sill 1.

[0020] like Figure 3 , Figure 4 As shown, in this embodiment, the two end faces of the connector 24 are welded to the side walls of the two bottom side beams 21, respectively. The height H1 of the connector 24 is greater than or equal to the height H2 of the bottom longitudinal beam 23, that is, the connector 24 extends downward beyond the bottom surface of the multiple bottom longitudinal beams 23 or is flush with the bottom surface of the multiple bottom longitudinal beams 23. This not only closes the bottom longitudinal beams 23 but also facilitates welding. To ensure sufficient space for assembly and welding, and to prevent the distance between the connector 24 and the threshold 1 from being too large, the width W of the connector 24 is set to 10~80mm. In another embodiment, when the connector 24 is plate-shaped, the thickness of the plate-shaped connector 24 can be set to 10mm. Of course, in other embodiments, the connector 24 can be a square tube, and its specific shape can be selected according to actual needs, ensuring that a closed space is formed between the connector 24 and the front side wall of the threshold 1 to prevent contamination from accumulating in the open space.

[0021] like Figure 2 , Figure 4 As shown, the multiple bottom longitudinal beams 23 include a connecting longitudinal beam 231. A slot 2311 is formed on the top surface of the rear end of the connecting longitudinal beam 231, extending horizontally through the connecting longitudinal beam 231 and rearward through the rear end face of the connecting longitudinal beam 231. The connecting member 24 engages with the slot 2311, which can limit the connecting member 24 in the vertical and longitudinal directions, preventing the connecting member 24 from being misaligned and further improving the welding quality. To improve positioning accuracy, the connecting longitudinal beam 231 is located in the middle of the base frame 2. Specifically, the connecting longitudinal beam 231 is located in the middle of the base frame 2 and its height is greater than the height H1 of the connecting member 24. The rear end face of the connecting longitudinal beam 231 is welded to the front sidewall of the sill 1.

[0022] The container chassis longitudinal beam connection structure of this utility model features a connector located between multiple bottom longitudinal beams and the sill. The front sidewall of the connector is welded to multiple bottom crossbeams, and a flat weld bead extending laterally is formed between the bottom surface of the connector and the front sidewall of the sill. The flat weld bead is filled with solder, allowing the rear sidewall of the connector to be welded to the front sidewall of the sill. In other words, multiple bottom longitudinal beams are integrated into a single structure through the connector. When the chassis and sill are welded together, a flat weld bead is formed between the connector and the sill, thus achieving a flat weld between multiple bottom longitudinal beams and the sill. This avoids the increased welding difficulty caused by multiple bends formed between the end faces of multiple bottom longitudinal beams and the sill due to direct welding to the front sidewall of the sill, thereby reducing welding difficulty, facilitating welding, and improving welding quality.

[0023] This utility model embodiment also provides a container (not shown), including the container underframe longitudinal beam connection structure described in any of the above embodiments.

[0024] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A container chassis longitudinal beam connection structure, characterized in that, This includes the threshold, the base frame, and the floor; The threshold extends along the lateral direction of the container; The base frame includes two bottom side beams, multiple bottom cross beams, multiple bottom longitudinal beams, and connectors. The two bottom side beams are respectively located on both sides of the base frame and in front of the threshold, extending along the longitudinal direction of the container. The multiple bottom cross beams are distributed along the longitudinal direction and their ends are welded to the two bottom side beams respectively. One of the multiple bottom cross beams adjacent to the threshold is an end cross beam. The multiple bottom longitudinal beams are located between the end cross beam and the threshold and are distributed along the transverse direction. The front ends of the multiple bottom longitudinal beams are welded to the rear side wall of the end cross beam. The connector is located between the multiple bottom longitudinal beams and the threshold and extends in the transverse direction. The front sidewall of the connector is welded to the multiple bottom transverse beams. A flat weld bead extending in the transverse direction is formed between the bottom surface of the connector and the front sidewall of the threshold. The flat weld bead is filled with solder, so that the rear sidewall of the connector is welded to the front sidewall of the threshold. The floor is laid on the top surface of the multiple bottom crossbeams and the multiple bottom longitudinal beams.

2. The container underframe longitudinal beam connection structure as described in claim 1, characterized in that, The connector has a connecting plate on its front side. The front sidewall of the connecting plate is welded to the end face of the multiple bottom longitudinal beams. A lower extension plate is provided on the rear side of the lower end of the connecting plate. The rear sidewall of the lower extension plate is welded to the front sidewall of the threshold.

3. The container underframe longitudinal beam connection structure as described in claim 2, characterized in that, An upper extension plate is provided on the rear side of the upper end of the connecting plate, and the rear sidewall of the upper extension plate is welded to the threshold.

4. The container underframe longitudinal beam connection structure as described in claim 2, characterized in that, The upper and lower ends of the connector are bent outwards to form an upper extension plate and a lower extension plate, respectively. The upper extension plate and the lower extension plate are perpendicular to the connecting plate. The rear sidewalls of the upper extension plate and the lower extension plate are welded to the front sidewall of the threshold.

5. The container underframe longitudinal beam connection structure as described in claim 1, characterized in that, The connector is a square tube.

6. The container underframe longitudinal beam connection structure as described in claim 1, characterized in that, The connector is L-shaped, U-shaped, or plate-shaped. The two ends of the connector are welded to the side walls of the two bottom side beams, respectively. The height of the connector is greater than or equal to the height of the bottom longitudinal beam, and the width of the connector is 10~80mm.

7. The container underframe longitudinal beam connection structure as described in claim 1, characterized in that, The bottom surface of the floor contacts the top surface of the multiple bottom crossbeams, the multiple bottom longitudinal beams, and the connector. The multiple bottom longitudinal beams include a connecting longitudinal beam. A slot is formed on the top surface of the rear end of the connecting longitudinal beam. The slot passes through the connecting longitudinal beam in the transverse direction and extends rearward through the rear end surface of the connecting longitudinal beam. The connector engages with the slot.

8. The container underframe longitudinal beam connection structure as described in claim 7, characterized in that, The connecting longitudinal beam is located in the middle of the base frame and its height is greater than that of the connector, and the rear end face of the connecting longitudinal beam is welded to the front side wall of the sill.

9. A container, characterized in that, Includes the container underframe longitudinal beam connection structure as described in any one of claims 1 to 8.

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