Container chassis and container

Abstract

The utility model discloses a chassis of container, the chassis of container includes frame, rigid floor, and frame includes two bottom side beams, support beam, bottom side beam includes the connecting wall of vertical, and the support wall of the bottom of connecting wall outward extension, two connecting walls are placed respectively below the both sides of rigid floor, and the top of connecting wall is connected through first welding portion with rigid floor, the top surface of support beam is connected in the lower surface of rigid floor through second welding portion, the top surface of support beam, two side faces and bottom surface jointly are closed configuration or the lower surface of rigid floor, two side faces of support beam and the bottom surface of support beam jointly enclose closed configuration, and the both ends of closed configuration have closed end. The utility model avoids forming the structure such as gap, hidden compartment under the chassis, also can not form the structure of cantilever type at the bottom of chassis, thereby prevent hiding earth, bacteria, virus, contraband etc. under the chassis of container.

Description

Technical Field

[0001] This utility model relates to the field of logistics and transportation technology, specifically to a container frame and a container. Background Technology

[0002] A shipping container is typically a hexahedral structure consisting of a base frame, side panels, end frames, doors, and a top panel. The base frame, as the bottom component of the entire container's cargo space, bears the weight of the goods inside. To ensure the container meets cargo loading requirements, the base frame usually consists of a frame and a floor laid on top of the frame. The frame includes two bottom side beams arranged longitudinally along the base frame and several bottom crossbeams. In some containers using steel plates as the floor, or in containers with high strength requirements for the base frame, other auxiliary beams are usually installed to enhance the strength of the base frame. For example, small bottom crossbeams are installed between adjacent bottom crossbeams, and longitudinal support beams are arranged between the two bottom side beams in the width direction of the base frame. These small bottom crossbeams and longitudinal support beams increase the overall strength of the frame and can distribute the downward pressure on the floor, preventing floor deformation. The bottom crossbeams installed at the bottom of the container make the structure under the container frame more complex, for example, forming some less obvious gaps at the bottom of the container. When the container is transferred between different countries and regions, the complex structure under the frame often carries some soil, bacteria and even viruses, which poses a potential risk of damaging the local ecological environment. In addition, some less obvious gaps at the bottom of the container may even be used by some criminals to hide contraband. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to propose a container bottom frame that can avoid the formation of gaps, hidden compartments or other structures at the bottom of the container, thereby preventing the container from impacting the ecological environment during transportation and preventing the container from being used by criminals to hide contraband.

[0004] The second objective of this utility model is to provide a container.

[0005] To achieve the first objective mentioned above, this utility model adopts the following technical solution:

[0006] The container's underframe, including the frame and the rigid floor laid on the frame;

[0007] The frame includes two bottom beams located on both sides and extending along the length of the base frame, and a support beam located between the two bottom beams;

[0008] The bottom side beam includes a vertical connecting wall and a supporting wall extending outward from the bottom of the connecting wall. The two connecting walls are respectively placed below the two sides of the rigid floor, and the top of the connecting wall is connected to the rigid floor through a first welded part, which extends continuously from one end of the bottom side beam to the other end of the bottom side beam.

[0009] The top surface of the support beam is connected to the lower surface of the rigid floor through a second welded part, which extends continuously from one end of the support beam to the other end of the support beam; the top surface, two sides and bottom surface of the support beam together form a closed structure or the lower surface of the rigid floor, the two sides of the support beam and the bottom surface of the support beam together form a closed structure, and the two ends of the closed structure have closed ends.

[0010] The support beam includes multiple bottom crossbeams that extend along the width of the base frame and are arranged along the length of the base frame. The two ends of the bottom crossbeams are respectively connected to the inner surfaces of the connecting walls of the two bottom side beams. The closed end of the closed structure formed by the bottom crossbeams is formed by the connecting walls of the two bottom side beams.

[0011] The support beam also includes a support beam arranged between two adjacent bottom beams. The two ends of the support beam are respectively connected to the inner surfaces of the connecting walls of the two bottom beams. The closed end of the closed structure formed by the support beam is formed by the connecting walls of the two bottom beams.

[0012] The cross-sections of the bottom beam and the supporting beam are one of the following: U-shaped, square, or inverted trapezoidal.

[0013] The support beam includes multiple bottom crossbeams and at least one support longitudinal beam extending along the length of the base frame; the bottom crossbeams extend along the width of the base frame, the multiple bottom crossbeams are arranged along the length of the base frame, and the support longitudinal beam intersects with the bottom crossbeams.

[0014] The bottom surface of the bottom crossbeam is flush with the bottom surface of the supporting longitudinal beam or the bottom surface of the bottom crossbeam is higher than the bottom surface of the supporting longitudinal beam; the bottom crossbeam is divided into multiple bottom crossbeam units arranged along the width direction of the base frame by the supporting longitudinal beam, and the ends of the bottom crossbeam units are welded to the bottom side beam or the supporting longitudinal beam to seal the ends of the bottom crossbeam units.

[0015] The bottom surface of the bottom crossbeam is higher than the bottom surface of the supporting longitudinal beam; the supporting longitudinal beam is provided with a first notch that is recessed downward from its top surface, and the bottom crossbeam is embedded in the first notch. The edge of the first notch is welded to the outer periphery of the bottom crossbeam so that the bottom crossbeam and the supporting longitudinal beam are sealed together.

[0016] The bottom surface of the supporting longitudinal beam is flush with the bottom surface of the bottom crossbeam or the bottom surface of the supporting longitudinal beam is higher than the bottom surface of the bottom crossbeam; the supporting longitudinal beam is divided into multiple supporting longitudinal beam units arranged along the length of the base frame by multiple bottom crossbeams, and the ends of the supporting longitudinal beam units are welded to the bottom crossbeams to seal the ends of the supporting longitudinal beam units.

[0017] The bottom surface of the supporting longitudinal beam is higher than the bottom surface of the bottom cross beam; the bottom cross beam is provided with a second notch that is recessed downward from its top surface, and the supporting longitudinal beam is embedded in the second notch. The edge of the second notch is welded to the outer periphery of the supporting longitudinal beam so that the intersection of the supporting longitudinal beam and the bottom cross beam is sealed.

[0018] The support beam includes two gooseneck beams extending along the length of the base frame, and a gooseneck top beam located between the two gooseneck beams. The inner surfaces of the two gooseneck beams and the bottom surface of the gooseneck top beam together form a gooseneck groove.

[0019] The support beam also includes a gooseneck end beam extending along the width of the base frame. The two ends of the gooseneck end beam are respectively connected to the inner surfaces of the connecting walls of the two bottom side beams. The closed end of the closed structure formed by the gooseneck end beam is formed by the connecting walls of the two bottom side beams. One end of the gooseneck beam is connected to the gooseneck end beam, and the other end of the gooseneck beam extends to the front end of the base frame. A sealing plate is provided at the other end of the gooseneck beam. The closed ends of the closed structure formed by the gooseneck beam are respectively formed by the gooseneck end beam and the sealing plate.

[0020] A mounting beam extending along the width of the base frame is fixed to the front end of the rigid floor. A front corner piece is provided at each of the two end corners of the front end of the base frame. A corner post is welded to each of the two front corner pieces. The two corner posts are welded to the two ends of the mounting beam to cover the two ends of the mounting beam. A recess is provided at the front end of the gooseneck beam. The mounting beam is embedded in the recess. The edge of the recess is welded to the outer periphery of the mounting beam to ensure a tight fit at the intersection of the mounting beam and the gooseneck beam. The top of the sealing plate is welded and fixed to the bottom surface of the mounting beam.

[0021] The support beam also includes longitudinal and transverse support beams located between adjacent bottom side beams and gooseneck beams. The longitudinal support beams extend along the length of the underframe, and the transverse support beams extend along the width of the underframe and are staggered with the longitudinal support beams. The two ends of the longitudinal support beams are respectively connected to the gooseneck end beam and the foremost transverse support beam. The closed end of the closed structure formed by the longitudinal support beams is composed of the gooseneck end beam and the foremost transverse support beam. The two ends of the transverse support beams are respectively connected to adjacent bottom side beams and gooseneck beams. The closed end of the closed structure formed by the transverse support beams is composed of the connecting wall of the bottom side beam and the gooseneck beam.

[0022] A rear corner piece is provided at each of the two end corners of the rear end of the base frame. The support beam includes a threshold located between the two rear corner pieces. The two ends of the threshold are respectively connected to the two rear corner pieces. The threshold includes an outer threshold located on its outer side and an inner threshold located on its inner side. The tops of the outer threshold and the inner threshold are welded together. The bottom of the inner threshold is provided with a first connecting section extending backward. The bottom of the outer threshold is provided with a second connecting section extending forward. The second connecting section is overlapped and welded together with the first connecting section.

[0023] An angle α is formed between the side of the supporting beam and the lower surface of the rigid floor, where 90°≤α≤160°.

[0024] To achieve the second objective mentioned above, this utility model adopts the following technical solution:

[0025] Containers, including the base frame of the aforementioned containers.

[0026] The beneficial effects of this utility model are as follows:

[0027] In this invention, the support beams under the rigid floor form a closed structure, and closed ends are formed at both ends of the closed structure. This makes the support beams form a closed structure under the base frame, preventing gaps, hidden compartments, or other structures from forming under the base frame, and also preventing cantilever structures from forming at the bottom of the base frame. The support wall of the bottom side beam extends outward from the bottom of the connecting wall, preventing cantilever structures from forming on the inner side of the bottom side beam. Thus, from the perspective of viewing from below the base frame, a closed structure is formed under the base frame, preventing soil, bacteria, viruses, contraband, etc. from hiding under the container's base frame. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0029] Figure 2 for Figure 1 AA section view;

[0030] Figure 3 for Figure 2 Enlarged view at point B;

[0031] Figure 4 for Figure 1 CC section view;

[0032] Figure 5 for Figure 4 A magnified view at point D;

[0033] Figure 6 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0034] Figure 7 for Figure 6 EE sectional view;

[0035] Figure 8 for Figure 6 Structural diagram of the central support longitudinal beam and the bottom side beam;

[0036] Figure 9 for Figure 6 FF sectional view;

[0037] Figure 10 for Figure 9 A magnified view at point G in the middle;

[0038] Figure 11 This is a structural schematic diagram of Embodiment 4 of the present invention;

[0039] Figure 12 for Figure 11 HH sectional view;

[0040] Figure 13 This is a structural schematic diagram of Embodiment 5 of the present utility model; Detailed Implementation

[0041] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0042] like Figure 1 , 2 Figures 3, 4, and 5 show the base frame of the container according to Embodiment 1 of this utility model. It includes a frame and a rigid floor 10 laid on the frame. The rigid floor 10 can be made of steel plate. The frame includes two bottom side beams 20 and a support beam. The two bottom side beams 20 are located on both sides of the frame and extend along the length of the base frame. The support beam is located between the two bottom side beams 20. Each bottom side beam 20 includes a vertically extending connecting wall 21 and a support wall 22 extending outward from the bottom of the connecting wall 21. The connecting walls 21 of the two bottom side beams are respectively placed below the two sides of the rigid floor 10, and the top of the connecting wall 21 is welded to the edge of the rigid floor 10 through a first welding part 101. The bottom side beam 20 extends continuously from one end to the other end, and is fixed to the rigid floor 10 through the first welding part 101, forming a complete sealing structure at the mating point of the bottom side beam 20 and the rigid floor 10. The top surface of the support beam is welded to the lower surface of the rigid floor through the second welding part, which extends continuously from one end of the support beam to the other end. The top surface, two sides, and bottom surface of the support beam together form a closed structure, or the lower surface of the rigid floor 10, the two sides of the support beam, and the bottom surface of the support beam together form a closed structure. The two ends of the closed structure have closed ends. An angle α is formed between the side surface of the support beam and the lower surface of the rigid floor, where 90°≤α≤160°. The support beams in this invention include all beam structures connected below the rigid floor 10 for supporting the rigid floor 10, enhancing the frame strength, and enabling the container's corresponding functions. These support beams form a closed structure, with closed ends at both ends, creating a closed structure below the underframe. This prevents gaps, hidden compartments, or other structures from forming below the underframe, and also avoids cantilever structures at the bottom of the underframe. The support wall 22 of the bottom side beam 20 extends outward from the bottom of the connecting wall 21, preventing cantilever structures from forming on the inner side of the bottom side beam 20. Thus, from the perspective of viewing from below the underframe, a closed structure is formed below the underframe, preventing the accumulation of soil, bacteria, viruses, contraband, etc., under the container's underframe.

[0043] In one embodiment, the support beam includes multiple bottom crossbeams 30. The bottom crossbeams 30 extend along the width direction of the base frame, and are arranged along the length direction of the base frame. The top surface of the bottom crossbeams 30 is connected to the lower surface of the rigid floor 10 via a second weld 301. Specifically, the bottom crossbeam 30 has a U-shaped cross-section and includes two side walls 31 and a bottom wall 32 connecting the bottoms of the two side walls 31. The tops of the two side walls 31 abut against the lower surface of the rigid floor 10. Each side wall 31 is welded to the lower surface of the rigid floor 10 via a second weld 301. The second weld 301 extends continuously from one end of the bottom crossbeam 30 to the other end, ensuring sufficient sealing between the top of the side walls 31 and the rigid floor 10. The lower surface of the steel floor 10, the outer surfaces of the two side walls 31, and the lower surface of the bottom wall 32 together form a closed structure. The two ends of the bottom crossbeam 30 are connected to the inner surfaces of the connecting walls 21 of the two bottom side beams 20. The bottom crossbeam 30 is welded and fixed to the connecting walls 21. The welded part used to connect the two extends continuously along the two side walls 31 and the bottom wall 32. Thus, the closed end of the closed structure formed by the bottom crossbeam 30 is formed by the connecting walls 21 of the two bottom side beams 20. That is to say, the bottom crossbeam 30 with a U-shaped cross section forms a closed structure extending along the width direction of the base frame after being welded to the lower surface of the rigid floor 10. After the bottom crossbeam 30 is welded to the bottom side beams 20, the two ends of the closed structure are closed by using the connecting walls 21 of the two bottom side beams 20 as the closed end. In the U-shaped structure of the bottom beam 30, its two side walls 31 are parallel to each other and extend along the height direction. After the two side walls 31 are welded to the lower surface of the rigid floor 10, the side walls 31 are perpendicular to the lower surface of the rigid floor 10. That is to say, the angle α between the outer side of the side wall 31 and the rigid floor 10 is 90°.

[0044] The U-shaped bottom beam 30 can be formed by bending steel plates, and its bottom wall 32 can be located above the bottom surface of the bottom side beam 20, or the lower surface of the bottom wall 32 can be flush with or substantially flush with the bottom surface of the bottom side beam 20.

[0045] In one embodiment, the bottom crossbeam 30 can also have a square cross-section. For example, the bottom crossbeam 30 can be made of a square-section steel pipe, which can be a seamless steel pipe or formed by bending steel plates. Compared to the U-shaped bottom crossbeam 30 described above, it is equivalent to connecting a top wall between the tops of the two side walls 31. When connecting the bottom crossbeam 30 to the rigid floor 10, the connection between the top wall and the two side walls 31 is welded on the lower surface of the rigid floor 10, forming a second welded part that extends continuously from one end of the bottom crossbeam 30 to the other end. The top surface, two side surfaces, and bottom surface of the bottom crossbeam 30 together form a closed structure. Of course, the two side walls 31 can also be inclined so that the cross-section of the bottom crossbeam 30 forms an inverted trapezoid. After the bottom crossbeam 30 is welded to the rigid floor 10, an angle α is formed between the side surface of the bottom crossbeam 30 and the rigid floor 10, where 90°<α≤160°. It should be noted that the cross-section of the bottom crossbeam 30 can also be triangular, semi-circular, etc., as long as it is ensured that after the bottom crossbeam 30 is welded to the steel floor 10, a groove with an opening facing both sides of the bottom crossbeam 30 is not formed between them.

[0046] To ensure the strength of the base frame meets the requirements while reducing its self-weight, the spacing between adjacent bottom crossbeams 30 can be increased. The support beam also includes a support crossbeam arranged between adjacent bottom crossbeams 30. The two ends of the support crossbeam are respectively connected to the inner side of the connecting wall 21 of the two bottom side beams 20. The cross section of the support crossbeam can be set as U-shaped, square, or inverted trapezoidal. Thus, the top two sides of the support crossbeam are respectively fixed to the rigid floor 10 by a continuous second weld, so that the top surface, two sides, and bottom surface of the support crossbeam form a closed structure, or the lower surface of the rigid floor 10, two sides, and bottom surface of the support crossbeam form a closed structure. The two ends of the support crossbeam are welded and fixed to the inner side of the connecting wall 21. Thus, the closed end of the closed structure formed by the support crossbeam is formed by the connecting wall 21 of the two bottom side beams 20. The cross-sectional dimensions of the support beam are smaller than those of the bottom beam 30. For example, the support beam can be set to have a relatively small height, which provides support for the rigid floor 10 below it, while the strength of the frame is increased because its two ends are welded to the two bottom side beams 20.

[0047] like Figure 6 , 7As shown in Figures 8, 9, and 10, the bottom frame of the container according to Embodiment 2 of this utility model is provided. The support beams include multiple bottom crossbeams 30, support longitudinal beams 40, and support longitudinal beams 50. The bottom crossbeams 30 extend along the width direction of the bottom frame, and the multiple bottom crossbeams 30 are arranged along the length direction of the bottom frame. The support longitudinal beams 40 and support longitudinal beams 50 extend along the length direction of the bottom frame. The support longitudinal beams 40 are located in the middle of the width direction of the bottom frame. Multiple support longitudinal beams 50 arranged along the width direction of the bottom frame are arranged between the support longitudinal beams 40 and the two bottom side beams 20. The support longitudinal beams 40 intersect with the multiple bottom crossbeams 30, and the multiple support longitudinal beams 50 intersect with the multiple bottom crossbeams 30.

[0048] The height dimensions of the supporting longitudinal beams 40 and 50 are smaller than the height dimension of the bottom crossbeam 30, so that the bottom surfaces of the supporting longitudinal beams 40 and 50 are higher than the bottom surface of the bottom crossbeam 30. The supporting longitudinal beams 40 are divided into multiple supporting longitudinal beam units 41 arranged along the length direction of the base frame by multiple bottom crossbeams 30. Similarly, the supporting longitudinal beams 50 are divided into multiple supporting longitudinal beam units 51 arranged along the length direction of the base frame by multiple bottom crossbeams 30. The ends of the supporting longitudinal beam units 41 are joined to the sides of the bottom crossbeams 30 and welded to the sides of the bottom crossbeams 30, thereby sealing the ends of the supporting longitudinal beam units 41 through the sides of the bottom crossbeams 30. That is to say, each supporting longitudinal beam unit 41 forms an independent closed structure, and the closed ends of the two adjacent bottom crossbeams 30 are formed by the sides of the closed structure. Similar to the supporting longitudinal beam unit 41, the end of the supporting longitudinal beam unit 51 is joined to the side of the bottom crossbeam 30 and welded to the side of the bottom crossbeam 30. The side of the bottom crossbeam 30 seals the end of the supporting longitudinal beam unit 51, thus creating a tight fit at the intersection of the supporting longitudinal beam 40 and the supporting longitudinal beam 50 with the bottom crossbeam 30. Taking the connection between the supporting longitudinal beam unit 51 and the bottom crossbeam 30 as an example, the end of the supporting longitudinal beam unit 51 is welded to the side wall 31 of the bottom crossbeam 30 via a welding part 501. The cross-section of the supporting longitudinal beam 40 can be U-shaped, square, or inverted trapezoidal. In this second embodiment, it is preferred that the cross-section of the supporting longitudinal beam 40 be square, which can be a square tube formed by bending a steel plate or a seamless steel tube with a square cross-section. The support beam 40 is centrally located in the middle of the width direction of the base frame. Compared to the support beam 50, the support beam 40 has a relatively larger height. The cross-section of the support beam 50 can be U-shaped, square, or inverted trapezoidal. In this second embodiment, the cross-section of the support beam 50 is preferably U-shaped. The connection method between the support beams 40 and 50 and the rigid floor 10 is the same as that between the bottom crossbeam 30 and the rigid floor 10 in the first embodiment. Both are formed by forming a second welded part on both sides of their top, which extends continuously along their length and is welded to the rigid floor 10. In some embodiments, the bottom surfaces of the support beams 40 and 50 can be made flush with the bottom surface of the bottom crossbeam 30. Both the support beams 40 and 50 are divided into multiple support beam units by multiple bottom crossbeams 30.

[0049] Based on setting the bottom surfaces of the supporting longitudinal beam 40 and the supporting longitudinal beam 50 to be higher than the bottom surface of the bottom crossbeam 30, in order to ensure that the supporting longitudinal beam 40 and the supporting longitudinal beam 50 are a single integral structure, a notch that is recessed downward from its top surface can be provided on the bottom crossbeam 30. This notch is equivalent to the cross-sectional dimensions of the supporting longitudinal beam 40 and the supporting longitudinal beam 50, so that the supporting longitudinal beam 40 and the supporting longitudinal beam 50 are embedded in the notch. The edge of the notch is welded to the outer edge surface of the supporting longitudinal beam 40 and the supporting longitudinal beam 50, thereby ensuring a tight fit at the intersection of the supporting longitudinal beam 40, the supporting longitudinal beam 50 and the bottom crossbeam 30.

[0050] It should be noted that, provided that the strength of the base frame and the rigid floor 10 meet the requirements, the support beam 40 can be set only in the middle of the width direction of the base frame; or the support beam 50 can be set only on the base frame.

[0051] In Embodiment 3 of this utility model, unlike Embodiment 2, the bottom surfaces of the supporting longitudinal beams 40 and 50 are set to be lower than the bottom surface of the bottom crossbeam 30, that is, the height of the supporting longitudinal beams 40 and 50 is greater than the height of the bottom crossbeam 30. The supporting longitudinal beams 40 and 50 divide the bottom crossbeam 30 into multiple bottom crossbeam units arranged along the width direction of the base frame. The ends of the bottom crossbeam units are welded to the bottom side beams 20 or the supporting longitudinal beams. The end walls of the closed structure formed by the bottom crossbeam units are closed by the connecting wall 21 of the bottom side beams 20 or the side of the supporting longitudinal beams. In Embodiment 3, the bottom surfaces of the supporting longitudinal beams 40 and 50 can also be set to be flush with the bottom surface of the bottom crossbeam 30, and the supporting longitudinal beams 40 and 50 can be used to divide the bottom crossbeam 30 into multiple bottom crossbeam units.

[0052] The bottom surfaces of the supporting longitudinal beams 40 and 50 are set to be lower than the bottom surface of the bottom crossbeam 30. In order to ensure that the bottom crossbeam 30 is a single integral structure, a notch with a downward indentation from its top surface can be provided on the supporting longitudinal beam. The cross-sectional size of the notch is equivalent to the cross-sectional size of the bottom crossbeam 30. The bottom crossbeam 30 is embedded in the notch of the supporting longitudinal beam, and the edge of the notch is welded to the outer periphery of the bottom crossbeam 30, so that the bottom crossbeam 30 and the supporting longitudinal beam intersect in a tight fit.

[0053] like Figure 11 , 12As shown, this is the base frame of the container according to Embodiment 4 of this utility model. The support beams include two gooseneck beams 60 and multiple gooseneck top beams 61. The gooseneck beams 60 extend along the length of the base frame. Specifically, one end of the gooseneck beam 60 extends to the front end of the base frame. The multiple gooseneck top beams 61 are located between the two gooseneck beams 60. The inner surfaces of the two gooseneck beams 60 and the bottom surfaces of the gooseneck top beams 61 together form a gooseneck groove. The gooseneck top beams 61 can extend along the width of the base frame, with both ends welded to the gooseneck beams 60. The gooseneck top beams 61 themselves form a closed structure, or the gooseneck top beams 61 and the rigid floor 10 form a closed structure. The closed ends of this closed structure are formed by the inner surfaces of the gooseneck beams 60.

[0054] The support beam also includes a gooseneck end beam 62 extending along the width direction of the base frame. The gooseneck end beam 62 can be a bottom crossbeam located at the rear end of the gooseneck beam 60. The gooseneck end beam 62 is the same as the bottom crossbeam 30 in the above embodiment. The top of the gooseneck end beam 62 is welded to the lower surface of the rigid floor 10, and its two ends are respectively connected to the inner side of the connecting wall 21 of the two bottom side beams 20. The connection method between the gooseneck end beam 62 and the rigid floor 10 and the bottom side beams 20 is the same as the connection method between the bottom crossbeam 30 and the rigid floor 10 and the bottom side beams 20 in the above embodiment, and will not be repeated here. The gooseneck end beam 62 forms a closed structure or the gooseneck end beam 62 and the rigid floor 10 form a closed structure. The closed end of the closed structure is formed by the connecting wall 21 of the bottom side beams 20. The rear end of the gooseneck beam 60 is connected to the gooseneck end beam 62, and the front end of the gooseneck beam 60 extends to the front end of the base frame. A sealing plate 601 is placed on the front end of the gooseneck beam 60. Thus, the closed ends of the closed structure formed by the gooseneck beam 60 are respectively composed of the gooseneck end beam 62 and the sealing plate 601.

[0055] A mounting beam 11 extending along the width of the base frame is fixed to the front end of the rigid floor 10. A front corner piece 70 is provided at each of the two end corners inside the front end of the base frame. A corner post 80 is welded to each of the two front corner pieces 70, and the two corner posts 80 are welded to both ends of the mounting beam 11 to cover both ends of the mounting beam 11. A recess is provided at the front end of the gooseneck beam 60, and the mounting beam 11 is embedded in the recess. The edge of the recess is welded to the outer periphery of the mounting beam 11, ensuring a tight fit at the intersection of the mounting beam 11 and the gooseneck beam 60. The top of the sealing plate 601 is welded and fixed to the bottom surface of the mounting beam 11.

[0056] To ensure sufficient strength in the gooseneck section of the base frame, the support beam of this invention further includes a longitudinal support beam 64 and a transverse support beam 63 located between adjacent bottom side beams 20 and gooseneck beams 60. The longitudinal support beam 64 extends along the length of the base frame, and the transverse support beam 63 extends along the width of the base frame and is staggered with the longitudinal support beam. The two ends of the longitudinal support beam 64 are respectively connected to the gooseneck end beam 62 and the foremost transverse support beam 63. The two ends of the transverse support beam 63 are respectively connected to adjacent bottom side beams 20 and gooseneck beams 60. The closed end of the closed structure formed by the longitudinal support beam 64 is formed by the gooseneck end beam 62 and the foremost transverse support beam 63. The closed end of the closed structure formed by the transverse support beam 63 is formed by the connecting wall 21 of the bottom side beam 20 and the gooseneck beam 60. The transverse support beam 63 and the longitudinal support beam 64 are staggered, and their cooperative structure is the same as the cooperative structure of the support longitudinal beam and bottom transverse beam 30 in embodiments two and three above.

[0057] like Figure 13 As shown, this is the base frame of the container according to Embodiment 5 of the present invention. A rear corner piece 90 is provided at each of the two end corners of the rear end of the base frame. The support beam also includes a sill 12 located between the two rear corner pieces 90. The two ends of the sill 12 are respectively connected to the two rear corner pieces 90. The sill 12 includes an outer sill 121 located on its outer side and an inner sill 122 located on its inner side. The tops of the outer sill 121 and the inner sill 122 are welded together. The bottom of the inner sill 122 is provided with a rearwardly extending first connecting section 1221. The bottom of the outer sill 121 is provided with a forwardly extending second connecting section 1211. The second connecting section 1211 is overlapped and welded together with the first connecting section 1221. By setting the sill 12 as a two-piece structure, the sill 12 itself forms a closed structure.

[0058] The container of this utility model includes the aforementioned container base frame. The other structures of the container are the same as those in the prior art and will not be described in detail here.

[0059] 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. The base frame of a container, characterized in that, This includes the frame and the rigid floor laid on the frame; The frame includes two bottom beams located on both sides and extending along the length of the base frame, and a support beam located between the two bottom beams; The bottom side beam includes a vertical connecting wall and a supporting wall extending outward from the bottom of the connecting wall. The two connecting walls are respectively placed below the two sides of the rigid floor, and the top of the connecting wall is connected to the rigid floor through a first welded part, which extends continuously from one end of the bottom side beam to the other end of the bottom side beam. The top surface of the support beam is connected to the lower surface of the rigid floor through a second welded part, which extends continuously from one end of the support beam to the other end of the support beam; the top surface, two sides and bottom surface of the support beam together form a closed structure or the lower surface of the rigid floor, the two sides of the support beam and the bottom surface of the support beam together form a closed structure, and the two ends of the closed structure have closed ends.

2. The container frame as described in claim 1, characterized in that, The support beam includes multiple bottom crossbeams that extend along the width of the base frame and are arranged along the length of the base frame. The two ends of the bottom crossbeams are respectively connected to the inner surfaces of the connecting walls of the two bottom side beams. The closed end of the closed structure formed by the bottom crossbeams is formed by the connecting walls of the two bottom side beams.

3. The container frame as described in claim 2, characterized in that, The support beam also includes a support beam arranged between two adjacent bottom beams. The two ends of the support beam are respectively connected to the inner surfaces of the connecting walls of the two bottom beams. The closed end of the closed structure formed by the support beam is formed by the connecting walls of the two bottom beams.

4. The container frame as described in claim 3, characterized in that, The cross-sections of the bottom beam and the supporting beam are one of the following: U-shaped, square, or inverted trapezoidal.

5. The container frame as described in claim 1, characterized in that, The support beam includes multiple bottom crossbeams and at least one support longitudinal beam extending along the length of the base frame; the bottom crossbeams extend along the width of the base frame, the multiple bottom crossbeams are arranged along the length of the base frame, and the support longitudinal beam intersects with the bottom crossbeams.

6. The container frame as described in claim 5, characterized in that, The bottom surface of the bottom crossbeam is flush with the bottom surface of the supporting longitudinal beam or the bottom surface of the bottom crossbeam is higher than the bottom surface of the supporting longitudinal beam; the bottom crossbeam is divided into multiple bottom crossbeam units arranged along the width direction of the base frame by the supporting longitudinal beam, and the ends of the bottom crossbeam units are welded to the bottom side beam or the supporting longitudinal beam to seal the ends of the bottom crossbeam units.

7. The container frame as described in claim 5, characterized in that, The bottom surface of the bottom crossbeam is higher than the bottom surface of the supporting longitudinal beam; the supporting longitudinal beam is provided with a first notch that is recessed downward from its top surface, and the bottom crossbeam is embedded in the first notch. The edge of the first notch is welded to the outer periphery of the bottom crossbeam so that the bottom crossbeam and the supporting longitudinal beam are sealed together.

8. The container frame as described in claim 5, characterized in that, The bottom surface of the supporting longitudinal beam is flush with the bottom surface of the bottom crossbeam or the bottom surface of the supporting longitudinal beam is higher than the bottom surface of the bottom crossbeam; the supporting longitudinal beam is divided into multiple supporting longitudinal beam units arranged along the length of the base frame by multiple bottom crossbeams, and the ends of the supporting longitudinal beam units are welded to the bottom crossbeams to seal the ends of the supporting longitudinal beam units.

9. The container frame as described in claim 5, characterized in that, The bottom surface of the supporting longitudinal beam is higher than the bottom surface of the bottom cross beam; the bottom cross beam is provided with a second notch that is recessed downward from its top surface, and the supporting longitudinal beam is embedded in the second notch. The edge of the second notch is welded to the outer periphery of the supporting longitudinal beam so that the intersection of the supporting longitudinal beam and the bottom cross beam is sealed.

10. The container frame as described in claim 1, characterized in that, The support beam includes two gooseneck beams extending along the length of the base frame, and a gooseneck top beam located between the two gooseneck beams. The inner surfaces of the two gooseneck beams and the bottom surface of the gooseneck top beam together form a gooseneck groove.

11. The container frame as described in claim 10, characterized in that, The support beam also includes a gooseneck end beam extending along the width of the base frame. The two ends of the gooseneck end beam are respectively connected to the inner surfaces of the connecting walls of the two bottom side beams. The closed end of the closed structure formed by the gooseneck end beam is formed by the connecting walls of the two bottom side beams. One end of the gooseneck beam is connected to the gooseneck end beam, and the other end of the gooseneck beam extends to the front end of the base frame. A sealing plate is provided at the other end of the gooseneck beam. The closed ends of the closed structure formed by the gooseneck beam are respectively formed by the gooseneck end beam and the sealing plate.

12. The container frame as described in claim 11, characterized in that, A mounting beam extending along the width of the base frame is fixed to the front end of the rigid floor. A front corner piece is provided at each of the two end corners of the front end of the base frame. A corner post is welded to each of the two front corner pieces. The two corner posts are welded to the two ends of the mounting beam to cover the two ends of the mounting beam. A recess is provided at the front end of the gooseneck beam. The mounting beam is embedded in the recess. The edge of the recess is welded to the outer periphery of the mounting beam to ensure a tight fit at the intersection of the mounting beam and the gooseneck beam. The top of the sealing plate is welded and fixed to the bottom surface of the mounting beam.

13. The container frame as described in claim 11, characterized in that, The support beam also includes longitudinal and transverse support beams located between adjacent bottom side beams and gooseneck beams. The longitudinal support beams extend along the length of the underframe, and the transverse support beams extend along the width of the underframe and are staggered with the longitudinal support beams. The two ends of the longitudinal support beams are respectively connected to the gooseneck end beam and the foremost transverse support beam. The closed end of the closed structure formed by the longitudinal support beams is composed of the gooseneck end beam and the foremost transverse support beam. The two ends of the transverse support beams are respectively connected to adjacent bottom side beams and gooseneck beams. The closed end of the closed structure formed by the transverse support beams is composed of the connecting wall of the bottom side beam and the gooseneck beam.

14. The container frame as described in claim 1, characterized in that, A rear corner piece is provided at each of the two end corners of the rear end of the base frame. The support beam includes a threshold located between the two rear corner pieces. The two ends of the threshold are respectively connected to the two rear corner pieces. The threshold includes an outer threshold located on its outer side and an inner threshold located on its inner side. The tops of the outer threshold and the inner threshold are welded together. The bottom of the inner threshold is provided with a first connecting section extending backward. The bottom of the outer threshold is provided with a second connecting section extending forward. The second connecting section is overlapped and welded together with the first connecting section.

15. The container frame as described in claim 1, characterized in that, An angle α is formed between the side of the supporting beam and the lower surface of the rigid floor, where 90°≤α≤160°.

16. A container, characterized in that, Includes the container frame as described in any one of claims 1-15.

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