CN108216969B

CN108216969B - Container underframe and container with same

Info

Publication number: CN108216969B
Application number: CN201611193338.9A
Authority: CN
Inventors: 何思东; 杨书林
Original assignee: China International Marine Containers Group Co Ltd; CIMC Containers Holding Co Ltd
Current assignee: China International Marine Containers Group Co Ltd; CIMC Containers Holding Co Ltd
Priority date: 2016-12-21
Filing date: 2016-12-21
Publication date: 2021-10-22
Anticipated expiration: 2036-12-21
Also published as: CN108216969A

Abstract

The invention provides a container underframe, which comprises a pair of bottom side beams which are parallel and longitudinally arranged and a plurality of bottom cross beams which are transversely arranged between the pair of bottom side beams, wherein a door end reinforcing piece is arranged at one end of the container underframe close to a door end, and the door end reinforcing piece is connected to a doorsill of a container during container assembly. According to the container underframe disclosed by the invention, the doorsill and the door end reinforcing piece can be in non-welding connection modes such as rivet riveting, screw connection and the like, and the welding workload during assembly is not increased, so that the conditions of manufacturing and assembling parts in different places can be met.

Description

Container underframe and container with same

Technical Field

The invention relates to the field of logistics transportation, in particular to a container underframe and a container with the same.

Background

Containers are currently the primary means of international freight. Containers are generally comprised of a pair of side walls, a door end, a front end, a roof, a base frame, and the like. The underframe is a main bearing part of the container, and particularly, the end, connected with the door end, of the underframe can bear more intensively in the using process. The conventional container underframe structure is composed of two bottom side beams and a plurality of bottom cross beams connected to the bottom side beams. In order to reinforce the strength of the underframe, as shown in fig. 3, the door sill in the door end structure of the container is designed to be enlarged to extend inward in the longitudinal direction of the container. When the container is assembled, the extending part of the doorsill extends into one end of the container underframe, which is connected with the door end of the container, and is welded and connected with the bottom side beam of the container underframe. The connecting and assembling mode is suitable for a production mode that the part production and the assembly of the container are carried out in the same place, if the part production and the assembly of the container are carried out in different places, a part transportation part needs to be added, the size of the doorsill with the extension part is large, the transportation is inconvenient, and the assembly work is influenced if the assembly place is not suitable for welding operation.

Therefore, it is desirable to provide a container chassis and a container having the same to at least partially solve the above problems.

Disclosure of Invention

In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

In order to solve the problems, the container underframe is used for a container and comprises a pair of bottom side beams which are parallel and longitudinally arranged and a plurality of bottom cross beams which are transversely arranged between the pair of bottom side beams, a door end reinforcing piece is arranged at one end of the container underframe connected with a door end of the container, and the door end reinforcing piece is connected to a doorsill of the container when the container is assembled.

Optionally, the door end reinforcement is connected to the sill of the container in a non-welded manner.

Optionally, the door end reinforcement is provided with a connecting portion projecting toward the rocker, the connecting portion being located above the extended end of the rocker when assembled.

Optionally, the door end reinforcement is provided with a connecting portion that protrudes toward the rocker, the connecting portion being located below the extending end of the rocker when assembled.

Optionally, a downward extending bent portion is provided at an edge of the connecting portion facing the rocker.

Optionally, the door end reinforcement is provided with a connecting portion protruding toward the door sill, a step portion is formed at an end of the connecting portion, and the extending end of the door sill is connected to an upper surface of the step portion during assembly, so that the upper surface of the extending end of the door sill is flush with the upper surface of the door end reinforcement.

Optionally, a bending part extending downwards is provided at an edge of the step part facing the threshold.

According to another aspect of the present invention, there is provided a container bottom frame for a container, comprising a pair of parallel and longitudinally disposed bottom side beams and a plurality of bottom cross beams disposed transversely between the pair of bottom side beams, wherein the bottom side beams are C-shaped structures with openings facing outward, and the width of the upper wing panels of the bottom side beams is smaller than the width of the lower wing panels of the bottom side beams.

Optionally, the upper wing plate of the bottom side rail is provided with a notch.

According to another aspect of the present invention there is provided a container having a container chassis as described above.

According to the container underframe and the container with the container underframe, the doorsill and the door end reinforcing piece are in non-welding connection, so that the welding workload during assembly is not increased, and the conditions of manufacturing and assembling parts in different places can be met.

Drawings

The following drawings of embodiments of the invention are included as part of the present invention for an understanding of the invention. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic view of a conventional container underframe (wherein the door sill of the door end of the container is also shown);

fig. 2 is a sectional view taken along a-a of the conventional container chassis shown in fig. 1;

FIG. 3 is a partial enlarged view of portion B of FIG. 2;

fig. 4 is a schematic view of the structure of the container underframe according to the first embodiment of the invention (wherein the door sill of the door end of the container is also shown);

fig. 5 is a cross-sectional view in the direction C-C of the container chassis of fig. 4;

fig. 6 is a cross-sectional view in the direction D-D of the container chassis of fig. 4;

FIG. 7 is an enlarged view of a portion E of FIG. 5;

FIG. 8 is an enlarged view of a portion F of FIG. 6;

fig. 9 is a schematic view of the structure of a container underframe according to a second embodiment of the invention (wherein the door sill of the door end of the container is also shown);

fig. 10 is a sectional view of the container chassis of fig. 9 taken in the direction of G-G;

FIG. 11 is an enlarged view of a portion H of FIG. 10;

fig. 12 is a schematic view of the structure of a container underframe according to a third embodiment of the invention (in which the door sill of the door end of the container is also shown); and

fig. 13 is a partially enlarged view of a portion M in fig. 12.

Reference numerals:

100. 200 and 300:

container chassis

110, 210, 310: bottom side beam

120. 220, 320, 420:

bottom cross member

130, 230, 330, 430: door sill

131:

extension reinforcement

231, 331, 431: epitaxial plate

140. 240, 340, 440:

floor

250, 350, 450: door end reinforcement

251. 351, 451: connection ends 352, 452: step part

453: bending part 211: lower wing plate

212: upper wing plate

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that embodiments of the invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in detail so as not to obscure the embodiments of the invention.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the invention. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The following detailed description of preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.

The conventional container underframe is constructed generally as shown in fig. 1, and the container underframe 100 includes a pair of bottom side members 110 arranged in parallel in a longitudinal direction, and a plurality of bottom cross members 120 arranged in parallel with a predetermined distance in a lateral direction between the pair of bottom side members 110. A pair of bottom side beams 110 and a plurality of bottom cross beams 120 together form a frame structure of the container bottom frame 100, and then a floor 140 is laid above the bottom cross beams 120 for loading the goods to be transported by the container.

In the process of using the container, because the goods are moved in and out, the load bearing of the door end doorsill is relatively concentrated and frequent, and therefore, the door end doorsill of the container is designed in an enhanced mode. As shown in fig. 2 and 3, an extension reinforcement 131 is provided at a side of the threshold 130 facing the container bottom frame 100, and the threshold 130 is integrally formed with the extension reinforcement 131, and when the threshold 130 is assembled to the container bottom frame 100, the extension reinforcement 131 is located below the floor 140 and extends inward a predetermined distance in a length direction of the container bottom frame 100 to reinforce a load-bearing strength of an end of the container bottom frame near a door end of the container. It is preferable that the extended reinforcement portion 131 of the rocker 130 is welded to the bottom side member 110 at the time of assembly to further increase the strength.

However, such a design results in that when the parts of the container are made and assembled off-site, the threshold, which is too large, is inconvenient to transport, especially requires welding connection with the container chassis, increases the amount of welding at the time of assembly, and affects the performance of the assembly work if the assembly site is not suitable for the welding operation.

To at least partially solve the above problems, the present invention provides a container chassis.

First embodiment

As shown in fig. 4 to 8, there is a container chassis 200 according to a first embodiment of the present invention. Includes a pair of bottom side members 210 arranged in parallel in a longitudinal direction, and a plurality of bottom cross members 220 arranged in parallel with a predetermined distance in a lateral direction between the pair of bottom side members 210. A pair of bottom side beams 210 and a plurality of bottom cross beams 220 together form a frame structure of the container bottom frame 200, and then a floor 240 is laid above the bottom cross beams 220.

Preferably, the bottom side member 210 may be selected from C-shaped steel, as shown in fig. 6, the C-shaped steel constituting the bottom side member 210 has an opening facing outward when being assembled to the container underframe 200. As further shown in fig. 8, the C-shaped steel constituting the bottom side member 210 has an upper flange 212 having a smaller width than a lower flange 211. Therefore, the weight of the whole bottom side beam is reduced as much as possible on the basis of ensuring the strength of the whole bottom side beam.

To reinforce the strength of the end of the container chassis 200 near the door end of the container, a door end reinforcement 250 is provided. As shown in fig. 7, the door end reinforcement 250 is disposed below the floor panel 240 between the pair of bottom side members 210 near the door end, and is connected to the pair of bottom side members 210 by welding. The door end reinforcement 250 is a bent piece having a connection end 251 parallel to the lower surface of the floor 240 and extending toward the rocker 230. The door end reinforcement 250 is connected to the threshold 230 by a connecting end 251. Specifically, the threshold 230 is provided with an extension plate 231 as an extension end, and the connection end 251 is connected by vertically engaging with the extension plate 231.

In assembly, the extension plate 231 of the rocker 230 is connected to the connection end 251 of the door end reinforcement 250 with the extension plate 231 positioned below the connection end 251, and the portion of the floor panel 240 near the door end is laid on the upper surface of the connection end 251 of the door end reinforcement 250. The rocker 230 and the door end reinforcement 250 may be joined together by a non-welding means such as rivet riveting, screw joining, or by direct overlapping.

The strength of the container underframe can be guaranteed through the design, the doorsill and the door end reinforcing piece are in non-welding connection, welding workload during assembly is not increased, and therefore the conditions of manufacturing and assembling parts in different places can be met.

Second embodiment

As shown in fig. 9 to 11, a container chassis 300 according to a second embodiment of the present invention. It is noted that the container chassis 300 according to the second embodiment has substantially the same structure as the container chassis 200 according to the first embodiment, and for the sake of brevity of description, the same parts will not be described in detail.

As shown in fig. 9, the bottom side member 310 is made of C-shaped steel, and a plurality of notches are formed in the upper wing plate of the C-shaped steel constituting the bottom side member 310 at intervals in the longitudinal direction, so that the weight of the entire bottom side member can be reduced as much as possible while the strength of the entire bottom side member is ensured.

As shown in fig. 10 and 11, a door end reinforcement 350 is provided under the floor 340 between the pair of bottom side members 310 near the door end, and is connected to the pair of bottom side members 310 by welding, for reinforcing the strength of the container chassis 100 near the door end. The door end reinforcement 350 is a bent piece provided with a connecting end 351 parallel to the lower surface of the floor 340 and extending toward the doorsill 330. Unlike the first embodiment, as shown in fig. 11, a stepped portion 352 is provided at the end of the connecting end 351 of the door end reinforcement 350.

In assembly, the extension plate 331 of the rocker 330 is connected to the connecting end 351 of the door end reinforcement 350, and the extension plate 331 is located above the step portion 352 at the end of the connecting end 351, that is, the extension plate 331 of the rocker 330 is located between the upper surface of the step portion 352 and the lower surface of the floor 340. Preferably, the distance between the upper surface of the step portion 352 and the upper surface of the connecting end 351 is equal to the thickness of the extension board 331, so that the upper surface of the connected extension board 331 is flush with the upper surface of the connecting end 351, the floor 340 is convenient to lay, and the extension board 331 is sandwiched between the step portion 352 and the floor 340, and the connecting strength between the doorsill 330 and the door end reinforcement 350 can also be increased. The rocker 330 and the door end stiffener 350 may be connected or directly overlapped together by a non-welding method such as rivet riveting, screw connection, or the like.

Third embodiment

As shown in fig. 12 to 13, there is a container chassis 400 according to a third embodiment of the present invention. It is to be noted that the container underframe 300 has substantially the same structure as the container underframe 200 according to the first embodiment or the container underframe 300 according to the second embodiment, and only the structure of the door end reinforcing part is different, and therefore, for the sake of brevity of description, the structural parts will not be described in detail.

As shown in fig. 13, the door end reinforcement 450 according to the present embodiment is substantially the same as the door end reinforcement 350 according to the second embodiment, except that a bent portion 453 extending downward is provided at the end of the stepped portion 452 of the connection end 451 of the door end reinforcement 450. The existence of the bending part 453 can greatly increase the strength of the door end reinforcing part 450, ensure the reinforcing effect on the door end bearing weight, and has simple structure and easy manufacture.

It will be understood by those skilled in the art that the bent portion shown in the present embodiment may be directly provided at the end of the connecting portion without the step portion as shown in the first embodiment.

According to another aspect of the invention, there is also provided a container comprising a container chassis as described above.

The present invention has been illustrated by the above embodiments, but it should be understood that the above embodiments are for illustrative and descriptive purposes only and are not intended to limit the invention to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the present invention as claimed.

Claims

1. A container underframe is used for a container and is characterized by comprising a pair of bottom side beams which are parallel and longitudinally arranged and a plurality of bottom cross beams which are transversely arranged between the pair of bottom side beams, wherein a door end reinforcing piece is arranged at one end, connected with a door end of the container, of the container underframe, the door end reinforcing piece is connected to a doorsill of the container when the container is assembled, a connecting part extending towards the doorsill is arranged on the door end reinforcing piece, and the door end reinforcing piece is in non-welded connection with the doorsill of the container.

2. The container chassis of claim 1, wherein the connecting portion is positioned above the extended end of the sill when assembled.

3. The container chassis of claim 1, wherein the connection is positioned below an extended end of the sill when assembled.

4. A container chassis according to claim 3 in which a downwardly extending bend is provided at the edge of the connecting portion facing the threshold.

5. The container chassis according to claim 3, wherein a tip end of the connecting portion is formed with a stepped portion, and an extended end of the rocker is connected to an upper surface of the stepped portion when assembled such that an upper surface of the extended end is flush with an upper surface of the door end stiffener.

6. The container chassis according to claim 5, wherein a downwardly extending bend is provided at an edge of the step portion facing the threshold.

7. A container underframe is used for a container and is characterized by comprising a pair of bottom side beams which are parallel and longitudinally arranged and a plurality of bottom cross beams which are transversely arranged between the pair of bottom side beams, wherein the bottom side beams are C-shaped structures with openings facing outwards, and the width of an upper wing plate of each bottom side beam is smaller than that of a lower wing plate of each bottom side beam.

8. The container chassis of claim 7, wherein the upper wing panel of the bottom side beams is provided with a notch.

9. A container, characterized in that it has a container chassis according to claims 1-8.