CN111498316B

CN111498316B - container

Info

Publication number: CN111498316B
Application number: CN201910090968.0A
Authority: CN
Inventors: 陆新林; 马锡山; 朱建彬; 王峰; 施春雷; 谢韵
Original assignee: Nantong CIMC Special Transportation Equipment Manufacture Co Ltd; Nantong CIMC Special Logistics Equipment Development Co Ltd
Current assignee: Nantong CIMC Special Transportation Equipment Manufacture Co Ltd; Nantong CIMC Special Logistics Equipment Development Co Ltd
Priority date: 2019-01-30
Filing date: 2019-01-30
Publication date: 2025-02-11
Anticipated expiration: 2039-01-30
Also published as: CN111498316A

Abstract

The present invention provides a container, including a box body forming a receiving space, and a door body for opening and closing the receiving space, the box body including a bottom plate and a top plate, two side plates, and a front plate corresponding to the door body, the top plate at least including a first plate body and a second plate body with relatively fixed positions, the first plate body is arranged close to the front plate relative to the second plate body, and the elastic limit and/or possible stress of the first plate body along the thickness direction is greater than that of the second plate body. In the present invention, by arranging the first plate body and the second plate body with different elastic limits and/or possible stresses on the top plate, when the container is turned over 90° and placed vertically, the first plate body relatively close to the front plate can have a greater strength, thereby preventing the structure of the top plate from being deformed.

Description

Container

Technical Field

The invention relates to a container, in particular to a container for vertical loading.

Background

Currently, standard containers are mostly used in the transportation process of containers. Standard containers are generally rectangular parallelepiped in shape and include an open-ended container body and a door for opening or closing the container body. The box comprises a bottom plate for bearing cargoes during transportation, a top plate corresponding to the bottom plate, a front plate connected to the rear end of the bottom plate and corresponding to the door body, and two side plates connected to the two sides of the bottom plate and the top plate. Typically, the floor is placed on a horizontal surface during loading of the standard container, and the pallet or the like is used to load the cargo horizontally into the container. Today, granular bulk cargo is also beginning to be transported in standard containers, which typically include grains, coal mines, granular ore, etc., but bulk cargo transportation is inefficient in loading containers by means of pallets, etc., and the space utilization within the containers is also low.

Therefore, in order to improve the loading and unloading efficiency of bulk cargos in a standard container, the container can be turned by 90 degrees, and the opening of the container faces upwards for loading. As in chinese patent publication No. CN205590006U, a container turnover machine is disclosed, which can rotate a container with its original bottom plate placed on a horizontal plane by 90 ° and its original front plate is rotated to be horizontal, and the opening of the container is upward, so that the container can be conveniently filled with goods downwards, and the loading efficiency is improved.

However, in the transportation process of the standard container, the bottom plate, the two side plates, the front plate and the door body all have the pressure for bearing the goods, so the strength is usually higher. The roof is not stressed and only needs to be suitable for an operator to walk, so that the strength of the roof cannot bear the load of goods. However, if the vertical loading is to be performed, the top plate must also bear a certain load, otherwise deformation or damage of the top plate is easily caused during the vertical loading. Also, it will be appreciated that the portion of the roof panel closer to the front panel is subjected to greater pressure during actual cargo loading and is more susceptible to deformation or damage.

Therefore, a standard container must be designed to meet the load requirements of vertical cargo.

Disclosure of Invention

In order to solve the above problems, the present invention provides a container, including a container body forming a containing space, and a door body for opening and closing the containing space, where the container body includes a bottom plate, a top plate, two side plates, and a front plate corresponding to the door body, the top plate includes at least a first plate body and a second plate body which are relatively fixed in position, the first plate body is disposed close to the front plate relative to the second plate body, and an elastic limit and/or allowable stress of the first plate body in a thickness direction is greater than that of the second plate body.

As a further improvement of the invention, the first plate body and the second plate body extend in a wave shape along the length direction of the box body.

As a further improvement of the invention, the first plate body has a greater thickness than the second plate body.

The top plate is further improved in that the top plate is provided with wave crest portions formed at intervals, wave trough portions are formed between two adjacent wave crest portions, each wave crest portion comprises a first wave crest portion located on the first plate body and a second wave crest portion located on the second plate body, each wave trough portion comprises a first wave trough portion located on the first plate body and a second wave trough portion located on the second plate body, and the distance from the first wave crest portion to the first wave trough portion is larger than the distance from the second wave crest portion to the second wave trough portion.

As a further development of the invention, the inner surfaces of the first and second trough portions are on the same straight line.

The top plate is further improved in that the top plate is provided with wave crest portions formed at intervals, wave trough portions are formed between two adjacent wave crest portions, each wave crest portion comprises a first wave crest portion located on the first plate body and a second wave crest portion located on the second plate body, each wave trough portion comprises a first wave trough portion located on the first plate body and a second wave trough portion located on the second plate body, and the distance between two adjacent first wave crest portions is smaller than the distance between two adjacent second wave crest portions.

As a further development of the invention, the container further comprises a reinforcement member which abuts against the inner surface of the first plate body.

As a further improvement of the invention, the top plate extends from the door body towards the front plate in a wave shape, the top plate is provided with wave crest portions formed at intervals, wave trough portions are formed between two adjacent wave crest portions, the first plate body comprises a first wave crest portion and a first wave trough portion, and the reinforcing piece is abutted against the inner surface of the first wave crest portion or the first wave trough portion.

As a further development of the invention, the first plate body has a material yield strength which is greater than that of the second plate body.

As a further improvement of the invention, the first plate body and the second plate body are at least one in number and are welded with each other.

The invention has the beneficial effects that the first plate body and the second plate body with different elastic limits and/or allowable stress are arranged on the top plate, so that the first plate body relatively close to the front plate can have larger strength when the container is overturned by 90 degrees and vertically placed, and the structure of the top plate is prevented from being deformed.

Drawings

FIG. 1 is a schematic perspective view of a container of the present invention;

FIG. 2 is a top view of the container of the present invention;

FIG. 3 is a schematic partial cross-sectional view of the first embodiment of FIG. 2 taken along line A-B;

FIG. 4 is a schematic partial cross-sectional view of the second embodiment of FIG. 2 taken along line A-B;

FIG. 5 is a schematic partial cross-sectional view of the third embodiment of FIG. 2 taken along line A-B;

FIG. 6 is a schematic partial cross-sectional view of the fourth embodiment of FIG. 2 taken along line A-B;

FIG. 7 is a schematic partial cross-sectional view of a fifth embodiment of FIG. 2 taken along line A-B;

100-container, 1-roof, 11-first panel, 111-first peak portion, 112-first trough portion, 12-second panel, 121-second peak portion, 122-second trough portion, 20-door, 2-front panel, 3-side panel, 4-stiffener, 41-first stiffener, 42-second stiffener.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

Furthermore, repeated reference numerals or designations may be used in the various embodiments. These repetition are for the purpose of simplicity and clarity of presentation and do not in itself dictate a relationship between the various embodiments or configurations discussed.

As shown in fig. 1 to 6, the present invention provides a rectangular parallelepiped container 100, wherein the container 100 is a standard container 100 with an end opening, the container 100 includes a container body forming an accommodating space, and a door body 20 opening and closing the accommodating space, the container body includes a bottom plate, a top plate 1, the door body 20 and a front plate 2 respectively installed at both ends of the bottom plate in a length direction, and a pair of side plates 3 respectively installed at both sides of the bottom plate in a width direction. The container 100 is formed with an opening with an open end, and the door 20 is provided to be opened and closed in the opening.

Specifically, as shown in fig. 1 to 2, the top plate 1 includes at least a first plate body 11 and a second plate body 12 that are relatively fixed in position, and the first plate body 11 is disposed close to the front plate 2 relative to the second plate body 12. In this embodiment, the first plate 11 and the second plate 12 only need to be fixed relatively, that is, the first plate 11 and the second plate 12 may be directly fixed and connected, or may be fixed mutually through other structures. For example, the top plate 1 may further include a third plate body, where the third plate body may be disposed on a side of the first plate body 11 away from the second plate body 12, or may be disposed on a side of the second plate body 12 away from the first plate body 11, or may be disposed between the first plate body 11 and the second plate body 12. And, the number of the first plate body 11 and the second plate body 12 and/or the third plate body is at least one, and the two plate bodies are fixed by welding.

In the present embodiment, the elastic limit and/or allowable stress of the first plate 11 in the thickness direction is greater than that of the second plate 12, and the first plate 11 has a greater elastic limit and/or allowable stress than that of the second plate 12 because the first plate 11 is closer to the front plate 2 than the second plate 12, so that the first plate 11 can bear a greater pressure.

On the one hand, the elastic limit is also called an elastic limit, and a material or a structure shows a functional relationship between stress and strain under the condition of stress, when the stress reaches a certain value, the stress is removed, so that the material or the structure cannot be restored to the original state by itself, and the stress value is called the elastic limit. Thus, in the present embodiment, since the top plate 1 is also vertically placed during vertical loading of the container 100, the load in the receiving space is formed to the top plate 1 from inside to outside and approximately equal to the pressure perpendicular to the top plate 1. Therefore, when the first plate 11 is subjected to a stress perpendicular to the first plate 11 (i.e., in the thickness direction) and the stress does not exceed the first elastic limit, the first plate 11 is strained to cancel the stress, and the first plate 11 is strained to return to its original state, and when the second plate 12 is subjected to a stress perpendicular to the second plate 12 (i.e., in the thickness direction) and the stress does not exceed the second elastic limit, the second plate 12 is strained to cancel the stress, and the second plate 12 is strained to return to its original state. The first elastic limit is greater than the second elastic limit, so that the first plate 11 can bear larger force relative to the second plate 12 and recover to the original state, and the first plate 11 is prevented from deforming.

Thus, when the same force is applied, both the first plate 11 and the second plate 12 deform, but when the force is withdrawn, the first plate 11 can be restored absolutely if the second plate 12 is still restored, and if the second plate 12 is plastically deformed, the first plate 11 can be restored.

On the other hand, the same elastic limit may be provided for plates of different materials of the same structure, and the plates of different materials of the same structure may deform identically when subjected to the same stress. And allowable stress refers to the maximum stress value that a part or component is allowed to withstand in a mechanical design or an engineering structural design. Therefore, the allowable stress of the first plate 11 is greater than that of the second plate 12, so that the stress of the first plate 11 to be damaged is greater than that of the second plate 12 to be damaged, and the force that the first plate 11 can bear is also greater than that of the second plate 12. Therefore, since the first plate 11 is closer to the front plate 2 than the second plate 12, when the container 100 is turned over by 90 ° and loaded vertically, the pressure borne by the first plate 11 is greater when the load enters from top to bottom, and the elastic limit and/or allowable stress of the first plate 11 are greater, so that the overall strength and stability of the top plate 1 can be effectively improved, and the top plate 1 is prevented from deforming. Of course, if the top plate 1 further includes a third plate body, a fourth plate body, etc., the elastic limit and/or allowable stress of the top plate 1 in the thickness direction gradually increases from the door body 20 toward the front plate 2. For example, if the top plate 1 further includes a third plate body, which is located on a side of the first plate body 11 away from the second plate body 12, the elastic limit and/or allowable stress of the third plate body in the thickness direction should also be greater than the elastic limit and/or allowable stress of the first plate body 11. Therefore, in summary, the elastic limit and/or allowable stress of the top plate 1 in the thickness direction gradually increases from the door body 20 toward the front plate 2, so that the top plate 1 can better bear the pressure in the vertical loading process, and the elastic limit and/or allowable stress of the top plate 1 is not reinforced integrally, thereby saving the cost.

From the above, the number of the first plate 11 and the second plate 12 is at least one, and accordingly, if the elastic limit and/or allowable stress of the first plate 11 are greater, the number or area of the corresponding first plate 11 is smaller. In general, the top plate 1 of the container 100 is long and is typically welded from five plates of the same shape and size, and in the embodiment, the first plate 11 has two plates and the second plate 12 has three plates. The elastic limit and/or allowable stress of the single plate body are balanced, so that the manufacturing difficulty is reduced, and the manufacturing efficiency is improved.

The following provides six embodiments, and for convenience of illustration, the first plate 11 and the second plate 12 are directly and fixedly connected, and the top plate 1 only includes the first plate 11 and the second plate 12, and of course, if the top plate 1 further includes a third plate, or the first plate 11 and the second plate 12 are fixedly connected with each other through the third plate, it is also included in the scope of the present invention.

Specifically, first, in order to improve the elastic limit, the following specific analysis is performed in terms of structure.

The first plate 11 and the second plate 12 extend in a wave shape along the length direction of the box, and the first plate 11 and the second plate 12 are formed by stamping.

In a first embodiment of the invention, the first plate 11 has a greater thickness than the second plate 12, as shown in fig. 3. Generally, in the prior art, the thickness of the top plate 1 of the container 100 is 1.6mm to 2.0mm, and in this embodiment, the thickness of the top plate 1 in the first plate 11 is 2.3mm to 4.0mm, and the thickness of the second plate 12 is 1.6mm to 2.0mm. The thicker the thickness of the top plate 1 of the first plate 11, the larger the area of the cross section of the first plate 11 per unit length, and the maximum elastic limit of the container 100.

In a second embodiment of the present invention, as shown in fig. 4, specifically, the top plate 1 has crest portions formed at intervals, and trough portions are formed between two adjacent crest portions. The wave crest portion comprises a first wave crest portion 111 positioned on the first plate body 11 and a second wave crest portion 121 positioned on the second plate body 12, and the wave trough portion comprises a first wave trough portion 112 positioned on the first plate body 11 and a second wave trough portion 122 positioned on the second plate body 12.

Specifically, the distance from the first crest portion 111 to the first trough portion 112 is greater than the distance from the second crest portion 121 to the second trough portion 122. That is, in the present embodiment, the maximum distance between the outer surface and the inner surface of the first plate body 11 is changed by changing the distance between the crest and the trough.

In the prior art, the distance from the peak portion to the trough portion is typically 20mm, and in this embodiment, the distance from the first peak portion 111 to the first trough portion 112 is 21mm to 36mm, and the distance from the second peak portion 121 to the second trough portion 122 is 20mm. The larger the peak-to-trough distance, the larger the area of the inner cross section of the first plate 11 per unit length, and the larger the elastic limit. In this embodiment, the first and second wave trough portions 112 and 122 are still on the same straight line, so that the heights of the first and second wave crest portions 111 and 121 are not uniform. The first trough portion 112 and the second trough portion 122 are positioned on the same horizontal line, so that the container can hold the articles.

Of course, the distance between the first crest portion 111 and the first trough portion 112 may be further increased in the first embodiment, that is, the first plate 11 may be thickened and the distance between the first crest portion 111 and the first trough portion 112 may be increased, so that the cross-sectional area of the first plate 11 per unit length may be further increased and the elastic limit may be further increased.

As shown in fig. 5, in the third embodiment of the present invention, the distance between two adjacent first wave crest portions 111 is smaller than the distance between two adjacent second wave crest portions 121, and likewise, the distance between two adjacent first wave trough portions 112 is smaller than the distance between two adjacent second wave trough portions 122. In the prior art, the distance between two adjacent peak portions is 209mm, and in the present embodiment, the distance between two adjacent first peak portions 111 is 50mm to 200mm, and the distance between two adjacent second peak portions 121 is 209mm. The wave form of the first plate 11 of the top plate 1 is thus denser than that of the second plate 12, so that the area of the inner cross section of the first plate 11 is also larger and the elastic limit is also larger per unit length.

Of course, the distance between two adjacent first crest portions 111 may be further reduced based on the first embodiment, that is, the first plate 11 may be thickened and the waveforms may be distributed more densely, so that the cross-sectional area of the first plate 11 per unit length may be further increased and the elastic limit may be also larger. Or on the basis of the second embodiment, the purpose of the invention can be achieved by deepening the waveform of the first plate body and improving the density of waveform distribution.

As shown in fig. 6 and 7, the container 100 further includes a reinforcement 4, and the reinforcement 4 is disposed inside the first plate 11 of the top plate 1. The reinforcement 4 may be a reinforcing beam, a reinforcing rib, a U-shaped member, or the like, and is abutted against the inner surface of the first plate body 11 of the top plate 1. If the container is provided outside the container 100, stacking of a plurality of containers 100 up and down is not facilitated, and collision is likely to occur. Accordingly, the reinforcement 4 is provided inside the first plate body 11 of the top plate 1, and accordingly, the strength of the top plate 1 in the first plate body 11 is increased, and thus, the elastic limit thereof is also correspondingly stronger. Specifically, as shown in fig. 6, in the fourth embodiment of the present invention, the reinforcement 4 includes a first reinforcement 41, and the first reinforcement 41 is disposed inside the first crest 111 of the first plate body 11 of the top plate 1 and continues to protrude inward beyond the inner surface of the first trough 112. As shown in fig. 7, in the fifth embodiment of the present invention, the reinforcement further includes a second reinforcement 42, and the second reinforcement 42 is disposed inside the first trough 112 of the first plate 11 of the top plate 1 and is connectable to the top beam of the container or the like. Of course, other reinforcement members may be provided on the inner side surface of the second plate body 12, but the elastic limit of the reinforcement member 4 at the first plate body 11 is also necessarily greater than that at the second plate body 12.

Similarly, the reinforcement member 4 may be added to the inner surface of the first plate 11 in addition to the first to third embodiments, so that the elastic limit of the first plate 11 is further improved, and the description thereof will be omitted. Of course, in the sixth embodiment of the present invention, in order to make the allowable stress of the first plate body 11 larger than that of the second plate body 12, the material yield strength of the first plate body 11 is larger than that of the second plate body 12. The material yield strength refers to the yield limit of a metallic material when it yields, i.e. the stress that resists minor plastic deformation. External forces greater than the yield strength will permanently fail the part and fail to recover. For example, a part of low carbon steel has a yield limit of 207MPa, and when subjected to an external force greater than this limit, the part will undergo permanent deformation, and less than this, the part will recover. In the prior art, SPA-H steel is generally used as the material of the top plate 1, and the yield strength of the material is generally 355mpa, in this embodiment, in order to enhance the yield strength of the material of the first plate 11, BC550 steel and DOMEX 700W steel are used as the material of the first plate 11, and the yield strength of the material of the first plate 11 may reach 450 to 700mpa.

In summary, the first plate 11 and the second plate 12 with different elastic limits and/or allowable stresses are arranged on the top plate 1, so that the first plate 11 relatively close to the front plate 2 has a larger elastic limit and/or allowable stress when the container 100 is turned over by 90 ° and placed vertically, thereby preventing the structure of the top plate 1 from being deformed and improving the stability of the top plate 1.

It should be understood that although the present disclosure describes embodiments in terms of examples, not every embodiment is provided with a single embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical embodiments of the present invention, and is not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a container, can be applied to the vertical dress of 90 degree of upset, the container includes the box that forms accommodation space, and the switching the door body of accommodation space, the box includes bottom plate and roof, both sides board, and the front bezel that corresponds with the door body, the roof includes first plate body and the second plate body of fixed relatively in position at least, first plate body is close to the second plate body the front bezel sets up, its characterized in that, the elastic limit and/or allowable stress of first plate body along thickness direction are greater than the second plate body, the elastic limit and/or allowable stress of roof along thickness direction gradually increase from the door body towards the front bezel.

2. The container of claim 1, wherein the first and second panels extend in a wave-like fashion along the length of the container.

3. The container of claim 2, wherein the first panel has a greater thickness than the second panel.

4. A container according to claim 2 or 3, wherein the roof has spaced peaks and a trough is formed between two adjacent peaks, the peaks include a first peak on the first panel and a second peak on the second panel, the troughs include a first trough on the first panel and a second trough on the second panel, and the distance from the first peak to the first trough is greater than the distance from the second peak to the second trough.

5. The container of claim 4, wherein the inner surfaces of the first and second trough portions are on a common line.

6. A container according to claim 2 or 3, wherein the roof has spaced peaks and a trough is formed between two adjacent peaks, the peaks including a first peak located in the first panel and a second peak located in the second panel, the troughs including a first trough located in the first panel and a second trough located in the second panel, and the distance between two adjacent first peaks is less than the distance between two adjacent second peaks.

7. A container as claimed in claim 2 or claim 3, further comprising a stiffener which abuts an inner surface of the first panel.

8. The container according to claim 7, wherein the top plate extends in a wave shape from the door body toward the front plate, the top plate has wave crest portions formed at intervals, wave trough portions are formed between two adjacent wave crest portions, the first plate body comprises a first wave crest portion and a first wave trough portion, and the reinforcement is abutted against an inner surface of the first wave crest portion or the first wave trough portion.

9. The container of claim 1, wherein the first panel has a material yield strength greater than the second panel.

10. The container of claim 1, wherein the first and second panels are at least one in number and are welded to one another.