A container column for use in the confined spaces of a container ship

Abstract

The application relates to the technical field of container ships, and discloses a box column for a container ship in a narrow space, which comprises an upright box column base and a prone open detachable small box column. The upright box column base comprises a side box column base, an in-hatch coaming box column base and a connecting platform. The upright box column base is vertically connected to a main deck. The side box column base and the in-hatch coaming box column base are respectively arranged on the two sides of a hatch coaming. The connecting platform is horizontally connected between the side box column base and the in-hatch coaming box column base. The prone open detachable small box column is arranged on the upper end of the side box column base and the in-hatch coaming box column base. The side box column base close to the side and the in-hatch coaming box column base are integrated. The tensile bending load on the box feet on the two sides of the container is borne by the two box column bases, the strength and rigidity of the box column structure are effectively improved, and the two box column bases are arranged on the two sides of the hatch coaming, space is fully utilized, and arrangement is facilitated.

Description

Technical Field

[0001] This invention relates to the field of container ship technology, and more specifically to a column for use in the confined space of a container ship. Background Technology

[0002] Container columns are important structures supporting containers on both sides of the main deck of a container ship, requiring sufficient structural strength and rigidity. In areas with large cargo hatches, the outermost row of containers is supported by the canopy near the ship's midships, and only the canopy columns need to be installed near the side of the ship to support the container's legs. However, in areas without large cargo hatches, canopy columns are still needed near the midships of the containers. But because the inner adjacent containers are stacked from the main deck, the space between the hatch coaming and the adjacent containers is narrow, making it quite difficult to install canopy columns in this narrow space.

[0003] For the box pillars in this area, the traditional design is to design separate box pillars near the side and inside the hatch coaming, such as... Figure 1 As shown, due to the small space, the box column inside the hatch coaming needs to be designed as a flat and long structure. In order to ensure that the structural strength and stiffness of the box column designed in this way can meet the requirements of the classification society, its structural side plates and other components are often made of high-strength steel thick steel plates. This not only increases the construction cost, but also increases the difficulty of welding. Moreover, this type of box column is also prone to structural failure.

[0004] In addition, conventional container column designs generally adopt a split-type structure, with the top of the column side plate aligned with the side wall of the container foot and the bottom aligned with the deck stiffener. Since the size of the container foot is generally small, the section modulus of the split-type column is generally small, and the overall bending and compressive strength of the column is weak. This is especially true for columns located in the narrow space between the container and the hatch coaming. In this space, the column not only has a small top size, but its bottom size is also relatively small due to the restriction of the hatch coaming and adjacent containers. The overall section modulus of the column is small. In order to ensure that the column has the structural strength required by the classification society, although a large amount of high-strength thick steel plates are used for its structural side plates, the structural performance has not been effectively improved.

[0005] Therefore, the above-mentioned technologies have the problems of compact main deck layout of container ships, difficulty in installing column bases in the narrow space between containers and hatch coamings, and low strength and rigidity of column bases. Summary of the Invention

[0006] The technical problem to be solved by the present invention is that the main deck of existing container ships is compactly arranged, and it is difficult to install column bases in the narrow space between the containers and the hatch coaming, resulting in low strength and rigidity of the installed column bases.

[0007] To solve the above-mentioned technical problems, the technical solution of the present invention is to provide a column for use in the confined space of a container ship, including an upright column base and a retractable column. The upright column base includes a side column base, an inner column base of the hatch coaming, and a connecting platform. The side column base and the inner column base of the hatch coaming are vertically connected to the main deck. The side column base and the inner column base of the hatch coaming are respectively located on both sides of the hatch coaming, and the inner column base of the hatch coaming is located inside the hatch coaming. The side column base is close to the side of the ship. The connecting platform is horizontally connected between the side column base and the inner column base of the hatch coaming. Two retractable columns are provided, respectively located at the upper ends of the side column base and the inner column base of the hatch coaming.

[0008] By adopting the above technical solution, the side column base on the hull side and the inner column base on the hatch coaming are connected into a whole through the intermediate connecting platform. The tensile and bending loads on the left and right sides of the container legs are borne by the two column bases. Compared with the traditional separate design of the column bases, the strength and rigidity of the column structure are effectively improved. Furthermore, the two column bases are set on both sides of the hatch coaming, making full use of the space and facilitating the layout.

[0009] Optionally, the side box column base includes a first side plate, and the side box column base is a cylindrical box column formed by connecting the first side plates together, wherein the first side plate is arranged perpendicular to the horizontal plane and is provided with reinforcing ribs.

[0010] Optionally, the inner box column base of the hatch coaming includes a second side plate. The inner box column base of the hatch coaming is a cylindrical box column formed by connecting the second side plates. The second side plate is arranged perpendicular to the horizontal plane and is provided with reinforcing ribs. The first side plate and the second side plate are both aligned with the reinforcing ribs below the main deck.

[0011] Optionally, the detachable, retractable small column includes a top plate, a base plate, and multiple third side plates. The base plate is located on the upper end of the side column base and the inner side column base of the hatch coaming. The third side plates are located on the base plate and are connected to each other to form a cylindrical column. The third side plates are detached and inclined. The top plate is located on the upper end of the third side plate. Container feet are provided above the top plate of the detachable, retractable small column.

[0012] Optionally, the base plate of the detachable small box column is provided with bolt holes, the detachable small box column is bolted to the side box column base and the inner side box column base of the hatch coaming, and the bottom of the third side plate is aligned with the first side plate or the second side plate, and the top of the third side plate is aligned with the container foot.

[0013] Optionally, the connecting platform includes a top platform and connecting elbows. The top platform is horizontally connected between the side column base and the inner column base of the hatch coaming. Two connecting elbows are provided, which are respectively connected to both sides of the top platform, and the two ends of the connecting elbows are connected to the side column base and the inner column base of the hatch coaming.

[0014] Optionally, the connection between the connecting elbow plate and the side box column base and the inner side box column base of the hatch coaming is provided with an arc, and a reinforcing rib is provided between the connecting elbow plate and the top platform.

[0015] Optionally, longitudinal ladders are provided on both the side of the side column base near the side of the hull and the side of the inner column base of the hatch coaming near the hatch coaming.

[0016] Optionally, a longitudinal ladder is provided on the side of the side column base near the side of the hull, and a second ladder and a vertical handle are provided on the outside of the hatch coaming.

[0017] Optionally, a walkway space is provided below the connecting platform, and the main deck in the walkway space is coated with anti-slip paint.

[0018] In summary, the present invention has at least the following beneficial effects:

[0019] 1. This invention connects the column base near the hull side with the column base inside the hatch coaming through an intermediate connecting platform to form a whole. The tensile and bending loads on the left and right sides of the container legs are borne by the two column bases. Compared with the traditional separate design of the column bases, the strength and rigidity of the column structure are effectively improved. Furthermore, by setting the two column bases on both sides of the hatch coaming, space is fully utilized and the arrangement is convenient.

[0020] 2. This invention divides the box column into an upright box column base and a sloping small box column, which effectively increases the overall section modulus of the box column and effectively improves the structural strength and rigidity of the box column.

[0021] 3. This invention connects the upright column base and the folding column with bolts, realizing both forward and reverse installation between the folding column and the upright column base, thereby enabling the outermost row of containers to simultaneously meet the convenience of loading standard containers and wide containers.

[0022] 4. This invention replaces the steps used in conventional designs with vertically arranged straight ladders on both sides, which effectively increases the passage space and enhances security while ensuring the convenience of bottom lock operation.

[0023] 5. The side plates of the upright box column base of the present invention are all perpendicular to the horizontal plane, which effectively improves the installation accuracy of the box column compared with the traditional open box column. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a conventional box-column structure;

[0025] Figure 2 This is a schematic diagram of the main structure of Embodiment 1 of the present invention;

[0026] Figure 3 This is a side view of the structure of Embodiment 1 of the present invention;

[0027] Figure 4 This is a top view of the structure of Embodiment 1 of the present invention;

[0028] Figure 5 This is a schematic diagram of the main structure of Embodiment 2 of the present invention;

[0029] Figure 6 This is a side view of the structure of Embodiment 2 of the present invention;

[0030] Figure 7 This is a top view of the structure of Embodiment 2 of the present invention;

[0031] Figure 8 This is a side view structural diagram of Embodiment 3 of the present invention;

[0032] Figure 9 This is a schematic diagram of a detachable, openable small box column structure;

[0033] Figure 10 A top view of the detachable, collapsible small column structure for container installation;

[0034] In the diagram: 1. Upright box column base; 11. Side box column base; 12. Inner box column base of hatch coaming; 131. Top platform; 132. Connecting elbow plate; 2. Retractable small box column; 21. Third outer side plate; 22. Third inner side plate; 23. Third front side plate; 24. Third rear side plate; 25. Top plate; 26. Base plate; 27. Container leg; 28. Bolt holes; 3. Hatch coaming; 4. Side; 5. Main deck; 6. Longitudinal ladder; 7. Second ladder; 8. Container. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-10 The present invention will be described in further detail below.

[0036] Example 1

[0037] This embodiment applies to the installation support of a 40-foot container, and discloses a container column for use in the confined space of a container ship, as shown in the reference. Figure 2-4It includes an upright box column base 1 and a retractable small box column 2. The upright box column base 1 includes a side box column base 11, an inner box column base 12 of the hatch coaming, and a connecting platform. The side box column base 11 and the inner box column base 12 of the hatch coaming are vertically connected to the main deck 5. The side box column base 11 and the inner box column base 12 of the hatch coaming are located on both sides of the hatch coaming 3, and the inner box column base 12 of the hatch coaming is located inside the hatch coaming 3. The side box column base 11 is close to the side 4. The connecting platform is horizontally connected between the side box column base 11 and the inner box column base 12 of the hatch coaming. There are two retractable small box columns 2, which are respectively located on the upper end of the side box column base 11 and the inner box column base 12 of the hatch coaming.

[0038] In a further embodiment, the side box column base 11 includes a first outer side plate, a first inner side plate, a first front side plate and a first rear side plate. The first outer side plate, the first inner side plate, the first front side plate and the first rear side plate are connected to each other to form a cylindrical box column. The first outer side plate, the first inner side plate, the first front side plate and the first rear side plate are all arranged perpendicular to the horizontal plane, and each side plate is provided with reinforcing ribs.

[0039] The hatch coaming inner box column base 12 includes a second outer side plate, a second inner side plate, a second front side plate and a second rear side plate. The second outer side plate, the second inner side plate, the second front side plate and the second rear side plate are connected to each other to form a cylindrical box column. The second outer side plate, the second inner side plate, the second front side plate and the second rear side plate are all set perpendicular to the horizontal plane, and each side plate is provided with reinforcing ribs.

[0040] Reference Figure 9 and Figure 10 The retractable, detachable box column 2 includes a top plate 25, a base plate 26, a third outer side plate 21, a third inner side plate 22, a third front side plate 23, and a third rear side plate 24. The base plate 26 is located on the upper end of the side box column base 11 and the inner side box column base 12 of the hatch coaming. The third outer side plate 21, the third inner side plate 22, the third front side plate 23, and the third rear side plate 24 are located on the base plate 26, and the third outer side plate 21, the third inner side plate 22, the third front side plate 23, and the third rear side plate 24 are located on the base plate 26. The side panels 24 are interconnected to form a cylindrical column that slopes outwards towards the inside of the hatch coaming 3. The top plate 25 is located on the upper end of the third outer side panel 21, the third inner side panel 22, the third front side panel 23, and the third rear side panel 24. Container feet 27 are provided above the top plate 25 of the detachable detachable column 2. Bolt holes 28 are provided on the base plate 26 of the detachable detachable column 2. The detachable detachable column 2 is bolted to the side column base 11 and the inner column base 12 of the hatch coaming.

[0041] In this embodiment, the first inner plate of the side column base 11 is aligned with the longitudinal stiffener of the main deck 5 near the side 4, the first outer plate, the first front plate and the first rear plate are aligned with the stiffener below the main deck 5, and the distance between the first outer plate and the top plate is greater than 100mm; the second outer plate, the second inner plate, the second front plate and the second rear plate of the hatch coaming inner column base 12 are all aligned with the stiffener below the main deck 5, and the distance between the second outer plate near the hatch coaming 3 and the hatch coaming 3 is greater than 100mm, the distance between the second inner plate and the container foot 27 of the adjacent container 8 is greater than 100mm, and the upright column base 1 and the main deck 5 are fully penetrated welded;

[0042] In the detachable, openable small box column 2 located above the side box column base 11, the bottom of the third outer side plate 21 is aligned with the top of the first outer side plate, the bottom of the third inner side plate 22 is aligned with the top of the first inner side plate, the bottom of the third front side plate 23 is aligned with the top of the first front side plate, and the bottom of the third rear side plate 24 is aligned with the top of the first rear side plate; in the detachable, openable small box column 2 located above the hatch coaming side box column base 12, the bottom of the third outer side plate 21 is aligned with the top of the second outer side plate, the bottom of the third inner side plate 22 is aligned with the top of the second inner side plate, the bottom of the third front side plate 23 is aligned with the top of the second front side plate, and the bottom of the third rear side plate 24 is aligned with the top of the second rear side plate.

[0043] In a further embodiment, the connecting platform includes a top platform 131 and a connecting elbow plate 132. The top platform 131 is horizontally connected between the side column base 11 and the inner column base 12 of the hatch coaming. Two connecting elbow plates 132 are provided, respectively connected to both sides of the top platform 131. The two ends of the connecting elbow plate 132 are connected to the side column base 11 and the inner column base 12 of the hatch coaming. The connection between the connecting elbow plate 132 and the side column base 11 and the inner column base 12 of the hatch coaming is provided with an arc. A reinforcing rib is provided between the connecting elbow plate 132 and the top platform 131.

[0044] In a further embodiment, longitudinal ladders 6 are provided on the side of the side column base 11 near the side 4 and on the side of the inner side column base 12 near the hatch coaming 3 for operating the bottom lock of the container 8 at the 40-foot box foot. A walkway space is provided below the connecting platform, and the main deck 5 in the walkway space is coated with anti-slip paint.

[0045] In this embodiment, the dimensions of the aisle space are 600mm x 2000mm. The container legs 27 are positioned above the top plate 25 of the detachable small column 2, and the top inner edge of the third outer side plate 21 of the detachable small column 2 is aligned with the bottom inner edge of the container legs 27. The top inner edge of the third inner side plate 22 is aligned with the bottom inner edge of the inner side plate of the container legs 27. The top outer edges of the third front side plate 23 and the third rear side plate 24 are respectively aligned with the centers of the front and rear side plates of the container legs 27.

[0046] Example 2

[0047] This embodiment is applicable to the installation support of a 20-foot box. The difference between this embodiment and Embodiment 1 is that, referring to... Figure 5-7 A longitudinal ladder 6 is provided on the side of the side column base 11 near the side 4, through which the bottom lock of the container 8 near the side 4 at the foot of the 20-foot container is operated; a second ladder 7 and an upright handle are provided on the outside of the hatch coaming 3, for reaching the top of the hatch coaming 3 to operate the bottom lock of the container 8 there.

[0048] Example 3

[0049] This embodiment is used for the installation support of wide boxes. The difference between this embodiment and embodiment 2 is that, referring to... Figure 8 The retractable small column 2 above the side column base 11 and the inner column base 12 of the hatch coaming is reversed, that is, the retractable small column 2 is rotated horizontally 180 degrees and then connected to the side column base 11 and the inner column base 12 of the hatch coaming. That is, the retractable small column 2 is tilted outward of the hatch coaming 3. Then the container 8 is placed on the container foot 27, and the top inner edge of the third outer side plate 21 of the retractable small column 2 is aligned with the bottom inner edge of the inner side plate of the container 8 foot, the top inner edge of the third inner side plate 22 is aligned with the bottom inner edge of the outer side plate of the container 8 foot, and the outer edges of the third front side plate 23 and the third rear side plate 24 are aligned with the center of the rear side plate and the front side plate of the container 8 foot, respectively.

[0050] In summary, this invention connects the column bases near the ship's side with those inside the hatch coaming via an intermediate connecting platform, forming a single unit. The tensile and bending loads on the left and right sides of the container 8 are shared by the two column bases. Compared to the traditional separate column design, the strength and rigidity of the column structure are effectively improved. Furthermore, placing the two column bases on both sides of the hatch coaming makes full use of space and facilitates arrangement. The column is divided into upright column bases and openable small column bases, effectively increasing the overall section modulus of the column and further enhancing its structural strength and rigidity. Simultaneously, the openable small column bases and upright column bases can be installed in both directions, allowing the outermost row of containers 8 to simultaneously accommodate both standard and wide containers. The longitudinally arranged straight ladders on both sides replace the steps used in conventional designs, effectively increasing passage space and enhancing safety while ensuring convenient bottom lock operation. The design of a four-sided alignment method effectively increases the installation margin of the container legs 27, and the installation accuracy of the column is effectively improved.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A column for use in the confined space of a container ship, characterized in that, It includes an upright box column base (1) and a retractable small box column (2). The upright box column base (1) includes a side box column base (11), an inner box column base (12) of the hatch coaming, and a connecting platform. The side box column base (11) and the inner box column base (12) of the hatch coaming are vertically connected to the main deck (5). The side box column base (11) and the inner box column base (12) of the hatch coaming are located at the hatch. Both sides of the enclosure (3), and the inner side box column base (12) of the hatch enclosure is located inside the hatch enclosure (3), the side box column base (11) is close to the side (4), the connecting platform is horizontally connected between the side box column base (11) and the inner side box column base (12) of the hatch enclosure, and there are two detachable small box columns (2), which are respectively located at the upper end of the side box column base (11) and the inner side box column base (12) of the hatch enclosure; The side box column base (11) includes a first side plate. The side box column base (11) is a cylindrical box column formed by connecting the first side plates. The first side plate is set perpendicular to the horizontal plane and is provided with reinforcing ribs. The hatch coaming inner side box column base (12) includes a second side plate. The hatch coaming inner side box column base (12) is a cylindrical box column formed by connecting the second side plates. The second side plate is set perpendicular to the horizontal plane and is provided with reinforcing ribs. The first side plate and the second side plate are aligned with the reinforcing ribs below the main deck (5).

2. The container column for use in the confined space of a container ship according to claim 1, characterized in that, The retractable small box column (2) includes a top plate (25), a base plate (26) and multiple third side plates. The base plate (26) is located on the upper end of the side box column base (11) and the inner side box column base (12) of the hatch coaming. The third side plates are located on the base plate (26) and are connected to each other to form a cylindrical box column. The third side plates are retracted and inclined. The top plate (25) is located on the upper end of the third side plate. Container feet (27) are provided above the top plate (25) of the retractable small box column (2).

3. The container column for use in the confined space of a container ship according to claim 2, characterized in that, The base plate (26) of the retractable small box column (2) is provided with bolt holes (28). The retractable small box column (2) is bolted to the side box column base (11) and the inner side box column base (12) of the hatch coaming. The bottom of the third side plate is aligned with the first side plate or the second side plate, and the top of the third side plate is aligned with the bottom of the side plate of the container foot (27).

4. The container column for use in the confined space of a container ship according to claim 1, characterized in that, The connecting platform includes a top platform (131) and a connecting elbow plate (132). The top platform (131) is horizontally connected between the side box column base (11) and the inner box column base (12) of the hatch coaming. There are two connecting elbow plates (132), which are respectively connected to the two sides of the top platform (131), and the two ends of the connecting elbow plate (132) are connected to the side box column base (11) and the inner box column base (12) of the hatch coaming.

5. The container column for use in confined spaces on a container ship according to claim 4, characterized in that, The connection between the connecting elbow plate (132) and the side box column base (11) and the inner side box column base (12) of the hatch coaming is provided with an arc, and a reinforcing rib is provided between the connecting elbow plate (132) and the top platform (131).

6. The container column for use in confined spaces on a container ship according to claim 1, characterized in that, The side column base (11) near the side (4) and the inner column base (12) near the hatch coaming (3) are both provided with longitudinal ladders (6).

7. The container column for use in confined spaces on a container ship according to claim 1, characterized in that, The side column base (11) is provided with a longitudinal ladder (6) on the side near the side (4), and a second ladder (7) and a vertical handle are provided on the outside of the hatch coaming (3).

8. The container column for use in confined spaces on a container ship according to claim 1, characterized in that, Below the connecting platform is a walkway space, and the main deck (5) in the walkway space is coated with anti-slip paint.

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