Chimney corner piece and container

Abstract

The utility model provides a kind of bottom corner piece and container.The bottom corner piece is configured as a cube, including bottom surface, top surface, outer end surface, inner end surface, outer side surface and inner side surface.The bottom surface and the top surface are parallel to each other and spaced apart.The outer end surface and the inner end surface are parallel to each other and spaced apart.The outer side surface and the inner side surface are spaced apart, the outer side surface includes a straight wall surface connected to the top surface, and a clearance surface connected between the straight wall surface and the bottom surface, the straight wall surface is parallel to the inner side surface, and the clearance surface is inclined to the straight wall surface and the bottom surface respectively.Through the inclined arrangement of the clearance surface, the outer side surface of the bottom corner piece forms a guide angle structure, when the container is placed, if the bottom outer end collides, the inclined surface can disperse the impact force and guide the collision object to slide, thereby reducing the risk of the container being damaged during loading and unloading.

Description

Technical Field

[0001] This utility model relates to the field of container technology, and more specifically to a bottom corner fitting and a container. Background Technology

[0002] Containers, as a multimodal transport tool, are widely used globally. Currently, in addition to the globally common international shipping containers, there are also special containers used in specific regions. For example, a 53-foot container is commonly used in North America for inland transport, paired with train carriages or trailers to achieve rail or road transport of goods.

[0003] When a container is hoisted and placed on the ground or other platforms, the outermost corner of the front corner post component may be the first to be impacted. This corner is located at the outer end where the front corner post body connects to the base plate, and its impact resistance is weak, making it susceptible to damage.

[0004] Therefore, there is a need to provide a bottom corner fitting and a container to at least partially solve the above problems. Utility Model Content

[0005] The utility model description section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To at least partially solve the above problems, the first aspect of this utility model provides a corner piece, the corner piece being a cube, comprising:

[0007] The bottom and top surfaces are parallel to each other and spaced apart.

[0008] The outer end face and the inner end face are parallel to each other and spaced apart from each other; and

[0009] The outer side and the inner side are arranged at intervals relative to each other. The outer side includes a straight wall surface connected to the top surface and a clearance surface connected between the straight wall surface and the bottom surface. The straight wall surface is parallel to the inner side, and the clearance surface is inclined to the straight wall surface and the bottom surface, respectively.

[0010] According to the bottom corner fitting of the first aspect of this utility model, by setting the avoidance surface in an inclined manner, the outer side of the bottom corner fitting forms a chamfer structure. When the container is placed, if the bottom outer end collides, the inclined surface can disperse the impact force and guide the colliding object to slide, thereby reducing the risk of the container being damaged during loading and unloading.

[0011] Optionally, the range of the included angle α between the avoidance surface and the bottom surface is: 90° < α < 180°.

[0012] Optionally, the range of the distance E1 between the upper edge of the avoidance surface and the lower edge of the avoidance surface in the orthographic projection of the plane containing the inner side surface is: 10mm < E1 < 120mm.

[0013] Optionally, in the orthographic projection of the plane containing the top surface, the range of the distance E2 between the upper edge of the avoidance surface and the lower edge of the avoidance surface is: 10mm < E2 < 300mm.

[0014] Optionally, the bottom corner piece further includes a first transition surface, which is connected to the top surface, the outer end surface, the straight wall surface and the clearance surface, respectively, and the first transition surface is inclined to the top surface, the outer end surface, the straight wall surface and the clearance surface, respectively.

[0015] Optionally, the first transition surface is a plane, and the range of the angle b between the first transition surface and the outer end face is: 90° < b < 180°.

[0016] Optionally, the first transition surface is an arc surface, and the first transition surface smoothly transitions with the outer side surface and the outer end surface, respectively.

[0017] Optionally, in the orthographic projection of the plane containing the inner side, the range of the distance F1 between the outer edge of the first transition surface and the outer end edge of the first transition surface is: 10mm < F1 < 100mm.

[0018] Optionally, in the orthographic projection of the plane containing the inner end face, the range of the distance F2 between the outer edge of the first transition surface and the outer end edge of the first transition surface is: 10mm < F2 < 100mm.

[0019] Optionally, the bottom corner piece has a pin hole that extends from the outer end face to the inner end face.

[0020] Optionally, the bottom corner piece has a weight-reducing groove, which is recessed inward from the inner end face.

[0021] Optionally, the bottom corner piece is a solid component formed in one piece.

[0022] Optionally, the distance D1 between the bottom of the weight-reducing groove and the inner end face is in the range of: D1≥6mm.

[0023] Optionally, the bottom corner piece has a pin hole, and the minimum distance D2 between the inner wall surface of the weight-reducing groove and the inner wall surface of the pin hole is in the range of: D2≥6mm.

[0024] Optionally, the minimum distance D3 between the inner wall surface of the weight-reducing groove and the inner side surface is in the range of: D3≥6mm.

[0025] Optionally, the minimum distance D4 between the inner wall surface of the weight-reducing groove and the bottom surface is in the range of: D4≥6mm.

[0026] Optionally, the minimum distance D5 between the inner wall of the weight-reducing groove and the clearance surface is: D5≥6mm.

[0027] Optionally, the minimum distance D6 between the inner wall surface of the weight-reducing groove and the straight wall surface is: D6≥20mm.

[0028] Optionally, the surfaces of the bottom corner piece have a smooth transition at the corners.

[0029] The second aspect of this utility model provides a container, including the aforementioned bottom corner fittings.

[0030] The container according to the second aspect of this utility model includes the aforementioned bottom corner piece and has similar technical effects to the aforementioned bottom corner piece.

[0031] Optionally, the container further includes a corner post body that extends along the height direction of the container, with the bottom of the corner post body connected to the top surface of the corner piece.

[0032] Optionally, a top plate is provided on the top of the corner column body.

[0033] Optionally, the length H of the corner post body along the height direction of the container is in the range of 500mm < H < 4000mm.

[0034] Optionally, the bottom corner piece is located at the front end of the container.

[0035] Optionally, the bottom corner piece is provided with a first transition surface;

[0036] The corner post body is provided with a second transition surface, which is parallel to the first transition surface of the bottom corner piece when projected along the height direction of the container.

[0037] Optionally, the container further includes a bottom side beam extending along the length of the container and connected to the inner end face of the corner post body and / or the bottom corner piece.

[0038] Optionally, the container further includes bottom side beam reinforcing angle steel, which is connected to the bottom side beam and the inner end face of the bottom corner piece.

[0039] Optionally, the bottom corner piece includes a pin hole, and the bottom side beam reinforcing angle steel is offset from the pin hole.

[0040] Optionally, the two bottom corner pieces are spaced apart relative to each other along the width direction of the container.

[0041] Optionally, the two corner pillars are respectively provided with corresponding bottom corner pieces.

[0042] Optionally, the bottom corner piece includes a pin hole, and the center distance W between the pin holes of the two bottom corner pieces is in the range of 2000mm≤W≤2600mm. Attached Figure Description

[0043] The following drawings, which illustrate embodiments of the present invention, are incorporated herein as part of the present invention for understanding the invention. The drawings show embodiments of the present invention and their descriptions, serving to explain the principles of the present invention. In the drawings,

[0044] Figure 1 This is a front view schematic diagram of a container according to a preferred embodiment of the present invention;

[0045] Figure 2 This is a front view schematic diagram of a container according to another preferred embodiment of the present invention;

[0046] Figure 3 for Figure 1 A partially enlarged schematic diagram of the corner prism body and corner fittings;

[0047] Figure 4 for Figure 2 A partially enlarged schematic diagram of the corner prism body and corner fittings;

[0048] Figure 5 This is a three-dimensional schematic diagram of a preferred embodiment of the present invention, in which the bottom corner piece is provided with a pin hole;

[0049] Figure 6 This is a three-dimensional schematic diagram of the bottom corner piece from another perspective, representing a preferred embodiment of the present invention.

[0050] Figure 7 This is a front view schematic diagram of the bottom corner piece according to a preferred embodiment of the present utility model;

[0051] Figure 8 This is a three-dimensional schematic diagram of the bottom corner piece according to another preferred embodiment of the present invention;

[0052] Figure 9 This is a perspective view of another preferred embodiment of the bottom corner piece of the present invention, in which the bottom corner piece is provided with a pin hole and a weight reduction groove.

[0053] Figure 10 This is a top view of the bottom corner piece according to another preferred embodiment of the present invention;

[0054] Figure 11 This is a front view schematic diagram of the bottom corner piece according to another preferred embodiment of the present invention;

[0055] Figure 12 This is a perspective view of the bottom corner piece according to another preferred embodiment of the present invention, in which the weight reduction groove is located on both sides of the pin hole in the bottom corner piece;

[0056] Figure 13 This is a front view schematic diagram of the bottom corner piece according to another preferred embodiment of the present utility model;

[0057] Figure 14 For along Figure 11 A schematic diagram of the cross-section intercepted by the centerline CC;

[0058] Figure 15 For along Figure 1 A schematic diagram of the cross-section intercepted by the centerline AA;

[0059] Figure 16 For along Figure 2 A schematic diagram of the cross-section cut by the centerline BB, where both the first and second transition surfaces are inclined planes;

[0060] Figure 17 For along Figure 2 A schematic diagram of the cross-section cut by the centerline BB, where both the first and second transition surfaces are curved surfaces;

[0061] Figure 18 This is a three-dimensional enlarged schematic diagram of a container according to a preferred embodiment of the present invention;

[0062] Figure 19 This is a partially enlarged schematic diagram of a container according to another preferred embodiment of the present invention;

[0063] Figure 20 This is a partially enlarged side view of a container according to a preferred embodiment of the present invention.

[0064] Figure 21 for Figure 20 An enlarged schematic diagram of part D; and

[0065] Figure 22 This is a schematic diagram showing the connection between the bottom corner piece and the trailer lock pin.

[0066] Explanation of reference numerals in the attached figures

[0067] 1: Container

[0068] 2: Side panels

[0069] 3: End plate

[0070] 10: Bottom corner fittings

[0071] 11: Bottom

[0072] 12: Top surface

[0073] 13: Outer end face

[0074] 14: Inner end face

[0075] 15: Outer side

[0076] 16: Inner side

[0077] 17: Straight wall

[0078] 18: Avoidance surface

[0079] 19: First transition surface

[0080] 20: Pin hole

[0081] 21: Weight Reduction Tank

[0082] 22: Corner of the ball

[0083] 30: Corner column body

[0084] 31: Top plate

[0085] 32: Second transition surface

[0086] 40: Bottom side beam

[0087] 41: Reinforcing angle steel for bottom side beams

[0088] 50: Trailer lock pin

[0089] DW: Width direction

[0090] DH: Altitude

[0091] DL: Length direction Detailed Implementation

[0092] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with embodiments of the present invention.

[0093] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0094] In this document, ordinal numbers such as "first" and "second" used in this invention are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term "first component" does not imply the existence of "second component," and the term "second component" does not imply the existence of "first component."

[0095] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0096] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0097] Unless otherwise stated, the numerical ranges in this document include not only the entire range within its two endpoints, but also the subranges contained therein.

[0098] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the present invention is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art.

[0099] Reference Figure 1 and Figure 2This utility model provides a container 1. The container 1 mainly includes a frame assembly and a wall panel assembly. The frame assembly includes a top frame at the top of the container 1, a bottom frame at the bottom of the container 1, multiple uprights between the top frame and the bottom frame, corner brackets connecting the uprights and the top frame, and corner brackets 10 connecting the uprights and the bottom frame. The wall panel assembly includes a top wall, side walls, and end walls. The top wall is located at the top of the frame assembly and is laid on the top frame; the top wall and the top frame together form the top of the container 1. The side walls are located on the side walls of the frame assembly, and the end walls are located on the end walls of the frame assembly. The side walls include side plates 2, and the end walls include end plates 3. The side plates are located on both sides of the frame assembly in the width direction DW. The end plates are located at both ends of the frame assembly in the length direction DL.

[0100] It should be noted that the directional terms used in this article to describe the various components and parts of container 1, such as "up," "down," "front," "rear," "left," "right," "facing upwards," "facing downwards," "facing forwards," "facing backwards," "facing left," and "facing right," are relative to container 1 when it is placed horizontally and upright. Unless otherwise specified, "inside" in directional terms such as "inwards," "outwards," "towards," "inner side," and "outer side" refers to the area closer to the center of container 1, and "outer side" refers to the area farther from the center of container 1.

[0101] During the handling of container 1, such as when container 1 is hoisted and placed on the ground or other platform, the bottom corner piece 10 is likely to be impacted first at the outer corner of the bottom.

[0102] Reference Figures 5 to 14 This solution provides a bottom corner bracket 10. The bottom corner bracket 10 is cubic in shape, including a bottom surface 11 and a top surface 12 that are parallel to each other and spaced apart, an outer end surface 13 and an inner end surface 14 that are parallel to each other and spaced apart, and an outer side surface 15 and an inner side surface 16 that are spaced apart. The outer side surface 15 includes a straight wall surface 17 connected to the top surface 12, and a clearance surface 18 connecting the straight wall surface 17 and the bottom surface 11. The straight wall surface 17 is parallel to the inner side surface 16, and the clearance surface 18 is inclined to both the straight wall surface 17 and the bottom surface 11. In this solution, the inclined arrangement of the clearance surface 18 creates a chamfered corner structure on the outer side surface 15 of the bottom corner bracket 10. When the container 1 is placed, if a collision occurs at the bottom outer end, the inclined surface can disperse the impact force and guide the colliding object to slide, thereby reducing the risk of damage to the container 1 during loading and unloading.

[0103] As described above, the corner bracket 10 is connected to the base frame and the uprights. Optionally, the corner bracket 10 is located at the front end of the container 1. In this embodiment, the bottom surface 11 of the corner bracket 10 faces downwards. The top surface 12 of the corner bracket 10 faces upwards. The outer end face 13 of the corner bracket 10 faces forward. The inner end face 14 of the corner bracket 10 faces backwards. The outer side 15 of the corner bracket 10 on the right side faces right, and the inner side 16 faces left. The outer side 15 of the corner bracket 10 on the left side faces left, and the inner side 16 faces right.

[0104] Reference Figure 5 and Figure 7 Optionally, the included angle α between the avoidance surface 18 and the bottom surface 11 is within the range of 90° < α < 180°. The included angle α can be, but is not limited to, 95°, 120°, 135°, 150°, and 175°. The inclined avoidance surface 18 design allows the colliding object to slide smoothly along the inclined surface when it contacts the bottom corner piece 10. By limiting this range, the slope is neither too steep, causing the colliding object to bounce, nor too gentle, thus ensuring that the colliding object can smoothly slide over the bottom corner piece 10, reducing direct impact on the bottom corner piece 10.

[0105] Reference Figure 7 Optionally, the range of the distance E1 between the upper edge and the lower edge of the clearance surface 18 in the orthographic projection of the plane containing the inner side 16 (i.e., the projection along the width direction DW of the container 1) is: 10mm < E1 < 120mm. The distance E1 can be, but is not limited to, 15mm, 30mm, 45mm, 60mm, 70mm, and 100mm. Preferably, the distance E1 is 70mm. Optionally, the range of the distance E2 between the upper edge and the lower edge of the clearance surface 18 in the orthographic projection of the plane containing the top surface 12 (i.e., the projection along the height direction DH of the container 1) is: 10mm < E2 < 300mm. The distance E2 can be, but is not limited to, 15mm, 50mm, 100mm, 150mm, 200mm, and 250mm. Preferably, the distance E2 is 50mm. By limiting the aforementioned range, the clearance surface 18 can provide a sufficient inclined area to disperse the impact force and prevent the colliding object from directly impacting the outer end of the bottom corner piece 10. If E1 or E2 is too small, the buffer area of ​​the clearance surface 18 is insufficient, which may lead to the concentration of impact force and increase the risk of damage to the outer end of the bottom corner piece 10. If E1 or E2 is too large, the inclined area of ​​the clearance surface 18 is too large, which may lead to a decrease in the structural strength of the bottom corner piece 10.

[0106] Reference Figures 8 to 13Optionally, the corner bracket 10 further includes a first transition surface 19, which is connected to the top surface 12, the outer end surface 13, the straight wall surface 17, and the clearance surface 18, respectively. The first transition surface 19 is inclined to the top surface 12, the outer end surface 13, the straight wall surface 17, and the clearance surface 18. The first transition surface 19 prevents stress concentration from causing localized damage to the corner bracket 10, thereby extending the service life of the corner bracket 10 and improving the overall safety and reliability of the container 1. The clearance surface 18 and the first transition surface 19 work together to guide the sliding of the colliding object during a collision and to disperse the stress generated by the collision, jointly protecting the corner bracket 10 and the outer end of the corner post, thus improving the safety and stability of the container 1 in the event of a collision.

[0107] Reference Figure 8 and Figure 10 In some embodiments, the first transition surface 19 is a plane, and the range of the angle b between the first transition surface 19 and the outer end surface 13 is: 90° < b < 180°. The angle b can be, but is not limited to, 95°, 100°, 120°, 150°, and 175°. By limiting this range, it is possible to better adapt to collision forces from different directions, resulting in better stress dispersion. If the angle b is too small, the first transition surface 19 may not be able to effectively disperse stress from certain directions; if the angle b is too large, it may cause the connection between the first transition surface 19 and the adjacent surface to be not tight enough, affecting the overall strength of the bottom corner piece 10.

[0108] In other embodiments, the first transition surface 19 is an arc surface, which smoothly transitions with both the outer surface 15 and the outer end surface 13. This smooth transition structure allows for smoother transmission of external forces on the bottom corner piece 10, avoiding stress concentration caused by right angles or sharp transitions. When the container 1 is impacted, the arc-shaped first transition surface 19 can evenly distribute the impact force to adjacent surfaces, reducing the risk of damage caused by excessive local stress.

[0109] Optionally, the range of the distance F1 between the outer edge of the first transition surface 19 and the outer end edge of the first transition surface 19, as projected onto the plane containing the inner side 16 (i.e., the projection along the width direction DW of the container 1), is: 10mm < F1 < 100mm. The distance F1 can be, but is not limited to, 15mm, 25mm, 45mm, 60mm, 70mm, and 95mm. Preferably, the distance F1 is 25mm. Optionally, the range of the distance F2 between the outer edge of the first transition surface 19 and the outer end edge of the first transition surface 19, as projected onto the plane containing the inner end surface 14 (i.e., the projection along the length direction DL of the container 1), is: 10 < F2 < 100mm. The distance F2 can be, but is not limited to, 15mm, 25mm, 50mm, 60mm, 70mm, and 95mm. By limiting this range, if F1 or F2 is too small, the buffer transition area of ​​the first transition surface 19 itself is insufficient, and external forces will quickly accumulate in the narrow area. If F1 or F2 is too large, the area of ​​the first transition surface 19 will be too large, weakening the overall structural strength of the bottom corner piece 10 and affecting its stability.

[0110] Reference Figures 3 to 4 In this design, container 1 also includes a corner post body 30. The corner post body 30 extends along the height direction DH of container 1 and is a tubular component. The bottom of the corner post body 30 is connected to the top surface 12 of the corner fitting. Because the corner post body 30 is connected to the bottom corner fitting 10, compared to existing designs where the corner post body 30 is connected to the bottom plate, this design reduces the height of the corner post body 30 and the amount of welding required, thus ensuring the strength of the steel structure while improving production efficiency. (Refer to...) Figure 1 Optionally, the length H of the corner post body 30 along the height direction DH of the container 1 is within the range of 500mm < H < 4000mm. The length H can be, but is not limited to, 510mm, 1000mm, 1500mm, 2000mm, 2500mm, 3000mm, and 3500mm. This range limits the length of the corner post body 30 to a reasonable range, making it compatible with the height of the container 1. This range of corner post body 30 has high universality.

[0111] Accordingly, refer to Figure 2 , Figure 4 , Figure 16 , Figure 17 , Figure 20 and Figure 21The corner post body 30 is provided with a second transition surface 32. The technical effect of the second transition surface 32 is similar to that of the first transition surface 19, reducing the risk of damage to the corner post body 30 and preventing scratches during transportation, thus providing protection. Simultaneously, in the orthographic projection of the plane containing the bottom surface 11 of the bottom corner piece 10 (i.e., the projection along the height direction DH of the container 1), the second transition surface 32 is parallel to the first transition surface 19 of the bottom corner piece 10. The second transition surface 32 ensures a smoother and more natural structural transition between the bottom corner piece 10 and the corner post body 30, improving the overall coordination and integrity of the container 1 structure. In this design, the corner post body 30 can be directly customized without further molding.

[0112] In some embodiments, refer to Figure 16 The second transition surface 32 is a plane that is adapted to the first transition surface 19.

[0113] In other embodiments, reference is made to Figure 17 The second transition surface 32 is an arc surface adapted to the first transition surface 19. Optionally, the projection of the first transition surface 19 along the height direction DH of the container 1 is concentric with the projection of the second transition surface 32.

[0114] Based on the above, the shape and size of the second transition surface 32 should match the first transition surface 19 to ensure a natural transition between the two, forming a step-like shape. For example, in the projection along the height direction DH of the container 1, the second transition surface 32 is similar in shape to the first transition surface 19.

[0115] To match the transportation and securing of container 1, refer to Figures 3 to 9 , Figures 11 to 13 , Figure 22 The corner bracket 10 has a pin hole 20. The pin hole 20 extends from the outer end face 13 to the inner end face 14, that is, it extends along the length direction DL of the container 1. The trailer's locking pin 50 enters from the outer end face 13 of the corner bracket 10 and exits from the inner end face 14 of the corner bracket 10, so that the trailer's locking pin 50 is easily observable. In this design, when the trailer's locking pin 50 is applied to the container 1, the trailer's locking pin 50 protrudes outward from the inner end face 14 of the corner bracket 10 along the length direction DL of the container 1.

[0116] To reduce the weight of the bottom corner piece 10. (Refer to...) Figure 9 , Figures 11 to 14 The bottom corner fitting 10 has a weight-reducing groove 21, which is recessed inward from the inner end face 14. The weight-reducing groove 21 is located on the inner end face 14, thus concealing it and improving the overall aesthetics of the container 1. Optionally, the number of weight-reducing grooves 21 can be one or more. A single weight-reducing groove 21 can be located inside or outside the pin hole 20. Multiple weight-reducing grooves 21 can be located on the same side or different sides of the pin hole 20.

[0117] Reference Figure 14 The distance D1 from the bottom of the weight-reducing groove 21 to the inner end face 14 is in the range of: D1≥6mm. The distance D1 can be, but is not limited to, 6mm, 8mm, 10mm, 20mm, 30mm, or 50mm. Preferably, the distance D1 is 10mm.

[0118] Reference Figure 11 and Figure 13 The minimum distance D2 between the inner wall of the weight-reducing groove 21 and the inner wall of the pin hole 20 is: D2≥6mm. The distance D2 can be, but is not limited to, 6mm, 8mm, 10mm, 20mm, 30mm, or 50mm. Preferably, the distance D2 is 10mm.

[0119] The minimum distance D3 between the inner wall surface of the weight-reducing groove 21 and the inner side surface 16 is in the range of: D3≥6mm. The distance D3 can be, but is not limited to, 6mm, 8mm, 10mm, 20mm, 30mm, or 50mm. Preferably, the distance D3 is 10mm.

[0120] The minimum distance D4 between the inner wall surface of the weight reduction groove 21 and the bottom surface 11 is in the range of: D4≥6mm. The distance D4 can be, but is not limited to, 6mm, 8mm, 10mm, 20mm, 30mm, or 50mm. Preferably, the distance D4 is 10mm.

[0121] The minimum distance D5 between the inner wall surface of the weight-reducing groove 21 and the clearance surface 18 is: D5≥6mm. The distance D5 can be, but is not limited to, 6mm, 8mm, 10mm, 20mm, 30mm, or 50mm. Preferably, the distance D5 is 20mm.

[0122] The minimum distance D6 between the inner wall surface of the weight-reducing groove 21 and the straight wall surface 17 is: D6 ≥ 20 mm. The distance D6 can be, but is not limited to, 20 mm, 30 mm, 40 mm, 50 mm, or 60 mm. Preferably, the distance D6 is 40 mm.

[0123] By limiting the parameter range of the weight-reducing groove 21 as described above, it is ensured that while reducing the weight of the bottom corner piece 10, the weight-reducing groove 21 will not affect the normal functioning of other structures. For example, the close proximity of the weight-reducing groove 21 to structures such as the pin hole 20 and the clearance surface 18 will not interfere with the lifting and collision buffering functions, so that the bottom corner piece 10 can still reliably complete its various tasks in the container 1 while meeting the lightweight requirements.

[0124] Optionally, the surfaces of the bottom corner piece 10 transition smoothly at the corners. (Refer to...) Figure 5 and Figure 8The bottom corner piece 10 is formed with a ball corner 22, which can cope with impacts from different directions and guide the colliding object to slide, disperse the force, and reduce the risk of being damaged by the impact.

[0125] Optionally, the corner piece 10 is a solid component formed in one piece. The solid structure ensures that the material inside the corner piece 10 is evenly distributed, with no weak points at the joints, thereby better dispersing stress, reducing the generation and propagation of fatigue cracks, and extending its service life.

[0126] A top plate 31 is provided on the top of the corner post body 30. Optionally, the top plate 31 is constructed as a flat plate. By providing the top plate 31, the structure of the container 1 is simplified while ensuring the strength of the corner post.

[0127] In this design, the bottom corner piece 10 is located at the front end of the container 1.

[0128] Optionally, the two bottom corner pieces 10 are arranged at a relative interval along the width direction DW of the container 1, forming a stable support base in the width direction DW. The two bottom corner pieces 10 are symmetrically arranged, that is, the clearance surface 18 and the first transition surface 19 of the two bottom corner pieces 10 both face outwards from the container 1. The two corner post bodies 30 are correspondingly arranged with the bottom corner pieces 10, that is, the second transition surface 32 of the corner post bodies 30 faces outwards from the container 1.

[0129] Reference Figure 1 The center distance W between the pin holes 20 of the two corner brackets 10 is within the range of 2000mm ≤ W ≤ 2600mm. The center distance W can be, but is not limited to, 2000mm, 2100mm, 2200mm, 2260mm, 2300mm, 2400mm, 2500mm, and 2600mm; preferably, the center distance W is 2260mm. By limiting this range, the spacing between the corner brackets 10 is adapted to the width of the container 1.

[0130] Reference Figures 18 to 21 The underframe of container 1 includes bottom side beams 40, which extend along the length DL of container 1 and are connected to the inner end faces 14 of the corner post bodies 30 and / or bottom corner fittings 10. Two bottom side beams 40 are arranged on both sides of the bottom of container 1. The front end of each bottom side beam 40 is connected to the corresponding corner post body 30 and / or bottom corner fitting 10. Through the cooperation of the bottom side beams 40 with the corner post bodies 30 and bottom corner fittings 10, the stress can be evenly distributed throughout the entire underframe structure.

[0131] Container 1 also includes bottom side beam reinforcing angle steel 41, which is connected to the bottom side beam 40 and the inner end face 14 of the bottom corner piece 10. By setting the bottom side beam reinforcing angle steel 41, the stress at the connection point can be effectively dispersed, reducing stress concentration, thereby improving the strength and load-bearing capacity of the connection point.

[0132] Optionally, the reinforcing angle steel 41 of the bottom side beam is constructed as a triangular prism-like structure, with the two right-angled sides of the triangular prism connected to the bottom side beam 40 and the bottom corner piece 10 respectively, forming a stable triangular-like structure that can resist deformation.

[0133] The reinforcing angle steel 41 of the bottom side beam is staggered from the pin hole 20 to avoid affecting the connection between the trailer locking pin 50 and the pin hole 20. During the lifting of container 1, the pin hole 20 bears the tensile force of the spreader; the reinforcing angle steel also bears significant pressure. Staggering the two avoids stress superposition. In addition, the staggered reinforcing angle steel can transfer some of the tensile force to a wider area, reducing stress concentration in the pin hole 20 and its surrounding structure, and lowering the risk of fatigue fracture due to excessive stress.

[0134] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of the invention. Terms such as “set” appearing herein can refer to either a component being directly attached to another component or a component being attached to another component via an intermediary. A feature described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0135] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this utility model to the described embodiments. Those skilled in the art will understand that many more variations and modifications can be made based on the teachings of this utility model, and all such variations and modifications fall within the scope of protection claimed by this utility model.

Claims

1. A bottom corner piece, characterized in that, The bottom corner piece is constructed as a cube, including: The bottom and top surfaces are parallel to each other and spaced apart. The outer end face and the inner end face are parallel to each other and spaced apart from each other; and The outer side and the inner side are arranged at intervals relative to each other. The outer side includes a straight wall surface connected to the top surface and a clearance surface connected between the straight wall surface and the bottom surface. The straight wall surface is parallel to the inner side, and the clearance surface is inclined to the straight wall surface and the bottom surface, respectively.

2. The bottom corner piece according to claim 1, characterized in that, The range of the included angle α between the clearance surface and the bottom surface is: 90° < α < 180°; and / or The orthographic projection of the inner surface onto the plane containing the inner surface, the distance E1 between the upper edge and the lower edge of the clearance surface, ranges from 10mm to 120mm; and / or The range of the distance E2 between the upper edge and the lower edge of the avoidance surface in the orthographic projection of the plane containing the top surface is: 10mm < E2 < 300mm.

3. The bottom corner piece according to claim 1, characterized in that, The bottom corner piece further includes a first transition surface, which is connected to the top surface, the outer end surface, the straight wall surface and the clearance surface, respectively. The first transition surface is inclined to the top surface, the outer end surface, the straight wall surface and the clearance surface, respectively.

4. The bottom corner piece according to claim 3, characterized in that, The first transition surface is a plane, and the angle b between the first transition surface and the outer end face is in the range of: 90° < b < 180°; or The first transition surface is an arc surface, and the first transition surface smoothly transitions with the outer side surface and the outer end surface respectively.

5. The bottom corner piece according to claim 4, characterized in that, The orthographic projection of the inner surface onto the plane contains a distance F1 between the outer edge of the first transition surface and the outer end edge of the first transition surface, ranging from 10mm to 100mm; and / or The range of the distance F2 between the outer edge of the first transition surface and the outer end edge of the first transition surface in the orthographic projection of the plane containing the inner end surface is: 10mm < F2 < 100mm.

6. The bottom corner piece according to any one of claims 1 to 5, characterized in that, The bottom corner piece has a pin hole that extends from the outer end face to the inner end face; and / or The bottom corner piece has a weight-reducing groove, which is recessed inward from the inner end face; and / or The bottom corner piece is a solid component formed in one piece.

7. The bottom corner piece according to claim 6, characterized in that, The weight-reducing groove satisfies at least one of the following conditions: The range of the distance D1 from the bottom of the weight-reducing groove to the inner end face is: D1≥6mm; The bottom corner piece has a pin hole, and the minimum distance D2 between the inner wall surface of the weight reduction groove and the inner wall surface of the pin hole is in the range of: D2≥6mm; The minimum distance D3 between the inner wall surface and the inner side surface of the weight reduction groove is: D3≥6mm; The minimum distance D4 between the inner wall surface of the weight reduction groove and the bottom surface is: D4≥6mm; The minimum distance D5 between the inner wall of the weight reduction groove and the clearance surface is: D5≥6mm; The minimum distance D6 between the inner wall of the weight-reducing groove and the straight wall is: D6≥20mm.

8. The bottom corner piece according to any one of claims 1 to 5, characterized in that, The surfaces of the bottom corner piece transition smoothly at the corners.

9. A container, characterized in that, Includes the bottom corner piece according to any one of claims 1 to 8.

10. The container according to claim 9, characterized in that, The container also includes a corner post body that extends along the height of the container, and the bottom of the corner post body is connected to the top surface of the bottom corner piece.

11. The container according to claim 10, characterized in that, The top of the corner column body is provided with a top plate; and / or The length H of the corner post body along the height direction of the container is in the range of: 500mm < H < 4000mm; and / or The bottom corner fitting is located at the front end of the container.

12. The container according to claim 10, characterized in that, The bottom corner piece is provided with a first transition surface; The corner post body is provided with a second transition surface, which is parallel to the first transition surface of the bottom corner piece when projected along the height direction of the container.

13. The container according to any one of claims 10 to 12, characterized in that, The container also includes a bottom side beam that extends along the length of the container and is connected to the inner end face of the corner post body and / or the bottom corner piece.

14. The container according to claim 13, characterized in that, The container also includes bottom side beam reinforcing angle steel, which is connected to the bottom side beam and the inner end face of the bottom corner piece.

15. The container according to claim 14, characterized in that, The bottom corner piece includes a pin hole, and the reinforcing angle steel of the bottom side beam is staggered from the pin hole.

16. The container according to any one of claims 10 to 12, characterized in that, The two bottom corner pieces are spaced apart relative to each other along the width direction of the container; and / or The two corner pillars are respectively set with the bottom corner pieces.

17. The container according to claim 16, characterized in that, The bottom corner piece includes a pin hole, and the center distance W between the pin holes of the two bottom corner pieces is in the range of 2000mm≤W≤2600mm.

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