Container mold

Abstract

The utility model discloses a container mold which comprises a container body frame, container foot parts are arranged at the bottom of the container body frame, and the container foot parts are arranged at the corresponding positions of the bottom of the container body frame according to different container models and sizes. The plurality of box foot parts form a detection group, the box body frame at least comprises two layers, namely a lower layer frame and an upper layer frame, the lower layer frame and the upper layer frame are arranged in parallel, and the peripheries of the upper layer frame and the lower layer frame are connected into a whole through a side frame to form a cuboid cage-shaped structure. Design is conducted according to a box foot component arrangement diagram and precision requirements, structural rectangular pipes and angle steel are manufactured to guarantee the strength, a triangular stable structure is formed on the periphery, deformation is effectively avoided, and the precision of the box foot components needs to meet tolerance requirements after the box foot components are installed and welded. The precision of the positioning block machined on the hatch cover can be quickly checked, and the mounting precision of the box foot part is high.

Description

Technical Field

[0001] The utility model relates to the technical field of shipbuilding, in particular to a container box mold. Background Art

[0002] Container ship hatch covers are large, removable structures installed on the ship's deck that close cargo hold openings. These covers are crucial to ensuring cargo security, preventing seawater from entering the holds, and maintaining the integrity of the ship's structure.

[0003] Stacking containers on hatch covers is a common practice in modern container ship design. This design primarily aims to maximize vessel space and improve transportation efficiency. However, to ensure safety and structural integrity, the hatch covers must be designed and strong enough to withstand the weight of the containers stacked on them. Furthermore, stacking containers on hatch covers requires precise positioning, which is why the hatch covers are equipped with positioning blocks that correspond to the container foot components.

[0004] Containers vary in size. For example, there are 20-foot, 40-foot, and 45-foot containers, and the corresponding foot components are positioned differently. After welding the locating blocks to the hatch cover, each block needs to be inspected for accuracy. This inspection is extremely stringent. If the locating blocks are misaligned, the container foot components will not fit properly within the blocks, potentially creating a dangerous situation. Typically, 100% accuracy measurement of the locating blocks and 100% container insertion testing are required to ensure that each set of locating blocks is positioned to the designed accuracy.

[0005] After installation, all the box foot parts are required to undergo box-fitting tests, and the dimensional accuracy, lifting accuracy, horizontal accuracy and overall accuracy of the box foot parts must meet the tolerance requirements. In actual testing, if a real container is used for box-fitting operations, it has many specifications, large volume, heavy weight, low efficiency and is extremely inconvenient to operate.

[0006] In view of the above, it is necessary to propose a container mold to solve the above problems. Utility Model Content

[0007] The purpose of the utility model is to overcome the defects in the prior art and provide a container mold.

[0008] To achieve the above-mentioned object, the technical solution of the present invention is as follows: a container mold, comprising a box frame manufactured according to the size of the container model, with box foot components provided at the bottom of the box frame, the box foot components being arranged at corresponding positions on the bottom of the box frame according to different container models and sizes; a plurality of box foot components forming a detection group, which corresponds to the position of the standard-sized positioning blocks on the hatch cover;

[0009] The box frame includes at least two layers, namely a lower layer frame and an upper layer frame. The lower layer frame and the upper layer frame are arranged in parallel. The upper layer frame and the lower layer frame are connected by side frames around their perimeters to form an integral body, forming a cuboid cage-like structure.

[0010] Furthermore, the box foot component has a hollow square tube structure. A bottom plate is provided at the bottom of the box foot component, and positioning through holes that match the shape of the positioning blocks are provided on the bottom plate.

[0011] Furthermore, both the upper layer frame and the lower layer frame are made by welding square tubes, and include two cross beams arranged in parallel along the length direction and multiple longitudinal beams arranged in parallel along the width direction.

[0012] Furthermore, the side frame includes support columns vertically arranged along the height direction and first diagonal braces obliquely pulled along the inclined direction. The support columns are made of square tubes. The upper ends of the support columns are welded to the upper layer frame and the lower ends are welded to the lower layer frame. The first diagonal braces are made of angle steel, and multiple first diagonal braces are obliquely welded on the side frames around the perimeter to form a stable frame structure with several triangles around the box frame.

[0013] Furthermore, there are four lifting lugs distributed in a rectangular shape on the upper side of the upper layer frame for lifting the container box mold.

[0014] Furthermore, the container box mold is a single-model inspection box mold. The upper layer frame and the lower layer frame are in the shape of a "day" character frame, and four box foot components are respectively provided at the four corners of the lower end face of the lower layer frame.

[0015] Furthermore, the container box mold is a multi-model inspection box mold. A pair of common inspection box feet is provided at one end of the lower layer frame in the length direction, and a first box foot pair and a second box foot pair are respectively provided at the other end according to the lengths of different container model sizes. The common inspection box feet and the first box foot pair or the second box foot pair respectively form inspection groups for inspecting the box foot components of different model containers.

[0016] Furthermore, it also includes an installation jig for processing and positioning the position of the box foot component. The installation jig includes a jig steel plate, and positioning blocks positioned according to standard dimensions are welded on the jig steel plate.

[0017] Furthermore, the flatness tolerance of the jig steel plate is less than ±2 mm.

[0018] The advantages and beneficial effects of the present invention are as follows: the present invention provides a container box mold, which is designed according to the box foot component layout drawing and precision requirements. The structural rectangular tubes and angle steels are made to ensure strength, and the stable triangular structure formed on all sides can effectively avoid deformation. The accuracy of the box foot components after installation and welding must meet the tolerance requirements. By simulating the actual installation of the container on the hatch cover through this box mold, the positioning blocks processed on the hatch cover can be quickly checked for accuracy, and the box foot components are installed with high accuracy. After the hatch cover box foot components are assembled, they are directly fitted with a simple box fitting to verify whether the installation of the box foot components meets the requirements. After meeting the requirements, welding is performed, which effectively improves the installation accuracy of the box foot components and work efficiency. The box fitting test is easy to operate. When the box fitting test is required, only 4 twist locks are required. As long as the twist locks can be smoothly inserted and locked, they meet the requirements and are simple to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a side view of a 20-inch container mold in the utility model;

[0020] Figure 2 This is a top view of a 20-inch container mold in the utility model;

[0021] Figure 3 This utility model Figure 1 Cross-sectional view of C1-C1;

[0022] Figure 4 This is a layout diagram of the bottom of the box foot component in the utility model;

[0023] Figure 5 This is a structural diagram of the box foot component in the utility model;

[0024] Figure 6 This is a side view of the 40-inch and 45-inch container molds in the present invention;

[0025] Figure 7 This is a top view of the 40-inch and 45-inch container molds in this utility model;

[0026] Figure 8 It is a top view of the tire frame;

[0027] Figure 9 yes Figure 8 Enlarged schematic diagram of the middle circle;

[0028] Figure 10 It is a table of container models and sizes;

[0029] In the figure: 1. Box frame; 2. Box foot parts; 3. Positioning blocks; 4. Lower frame; 5. Upper frame; 6. Bottom plate; 7. Positioning holes; 9. Crossbeam; 10. Longitudinal beam; 11. Support column; 12. First diagonal brace; 13. Lifting lug; 14. Single-model inspection box mold; 15. Multi-model inspection box mold; 16. Common inspection box foot pair; 17. First box foot pair; 18. Second box foot pair; 19. Installation tire frame; 20. Tire frame steel plate. DETAILED DESCRIPTION

[0030] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0031] Example 1:

[0032] A container box mold, such as Figure 1-10 As shown, it includes a box frame 1 made according to the size of the container model, and a box foot component 2 is provided at the bottom of the box frame 1. This device uses steel profiles to process the box frame 1 into a size equivalent to the length and width of the container, while reducing the height size. Figure 3 、 6 As shown, the height of the container frame 1 is specifically designed to be 1000 mm, so as to actually simulate the situation where the bottom of a real container is installed on the hatch cover.

[0033] Specifically, such as Figure 10 As shown, there are many sizes of container models with different corresponding tolerances, and container molds of corresponding sizes can be processed for different sizes.

[0034] Our company was tasked with fabricating hatch covers for a 150,000 TEU container ship, a project involving six ship sets. These 150,000 TEU hatch covers are multi-panel, lift-off, open hatch covers, comprised of 21 compartments and 83 panels, designed to accommodate 20-foot, 40-foot, and 45-foot container feet. The shipowner had stringent requirements for the installation of the container feet, requiring 100% precision measurement and 100% container testing. Using actual containers for testing would be inconvenient due to their height, bulk, weight, and the surrounding panels, which hindered visibility. The large number of containers required for testing would also be a challenge.

[0035] The box frame 1 comprises at least two layers, namely a lower frame 4 and an upper frame 5. The lower frame 4 is arranged parallel to the upper frame 5. The upper frame 5 and the lower frame 4 are connected by side frames to form a whole, forming a rectangular cage structure. The box frame 1 of the device greatly reduces weight and has no plate around it, which facilitates observation. The cage structure also effectively improves strength.

[0036] The box foot components 2 are arranged at corresponding positions at the bottom of the box frame 1 according to different container models and sizes; multiple box foot components 2 constitute a detection group, which corresponds to the position of the standard-sized positioning blocks 3 on the hatch cover plate; when this box mold is processed, the box foot position at its bottom is the standard position. During the box installation inspection, this tooling is hoisted onto the produced hatch cover and aligned with the positioning blocks 3 set thereon. If the installation is smooth without deflection or jamming, it means that the position of the positioning blocks 3 on the hatch cover is accurate and meets the standard.

[0037] As an embodiment, the container box mold is a single model detection box mold 14, and the upper frame 5 and the lower frame 4 are Japanese-shaped frames, such as Figure 1-5 As shown, four box foot components 2 are provided at the four corners of the lower end surface of the lower frame 4. Specifically, the box foot components 2 are hollow square tubes with a base plate 6 at their bottom. This base plate 6 is provided with positioning holes 7 that match the shape of the positioning blocks 3. When the box mold is in place, the positioning holes 7 on the base plate 6 allow the positioning blocks 3 to pass through, thereby ensuring positioning. During inspection, the position of the positioning blocks 3 on the hatch cover can be checked using the inspection group formed by the box mold's four box feet. This allows for quick, convenient, and accurate inspection.

[0038] In this embodiment, the box foot component 2 at the bottom of the box mold is Figure 10 The dimensions shown are processed according to standards, such as Figure 4 As shown, the distribution of the container feet is made the same as that of the actual container bottom feet. This embodiment is used to detect the positioning block 3 of a 20-inch container.

[0039] Specifically, the upper frame 5 and the lower frame 4 are both made of square tubes welded together, including two horizontal beams 9 arranged in parallel along the length direction and a plurality of longitudinal beams 10 arranged in parallel along the width direction, forming a Japanese-shaped frame in this embodiment. Figure 2 The main structure of the 20-inch container mold box is made of 160*160*8 rectangular tubes and 75*75*8 angle steel.

[0040] Furthermore, the side frame includes a support column 11 vertically arranged in the height direction, and a first diagonal brace 12 obliquely arranged in the oblique direction; the support column 11 is a square tube, the upper end of the support column 11 is welded to the upper frame 5, and the lower end is welded to the lower frame 4; Figure 3 As shown, the first diagonal braces 12 are made of angle steel. Multiple first diagonal braces 12 are welded diagonally to the surrounding side frames, forming a stable triangular frame structure around the box frame 1. This cage-like structure maintains the box mold's strength and reduces deformation during use. During the fabrication of this tooling, if the four box legs exhibit excessive dimensional deformation after welding, they must be cut off and re-welded on the mounting bracket 19.

[0041] Specifically, such as Figure 8 、 9 As shown, a mounting frame 19 for machining and positioning the box foot components 2 is constructed. The mounting frame 19 comprises a steel plate 20 onto which are welded positioning blocks 3 of standard dimensions. The flatness tolerance of the plate 20 is less than ±2 mm. Because the positioning blocks 3 on the frame are spaced to a standard size, the box foot components 2 are positioned accordingly, and then welded to the lower frame 4, ensuring the precise positioning of the box foot components on the box mold.

[0042] There are four rectangularly distributed lifting lugs 13 for lifting container box molds on the upper side of the upper frame 5. Through the lifting lugs 13, this box mold can be easily lifted and used.

[0043] Example 2:

[0044] As an improvement, the container box mold is a multi-model detection box mold 15, such as Figure 6 、 7 As shown, the lower frame 4 is equipped with a pair of common inspection foot pairs 16 at one longitudinal end, and a first pair of foot pairs 17 and a second pair of foot pairs 18 at the other end, each designed to meet the lengths of different container sizes. The common inspection foot pairs 16, along with the first or second pair of foot pairs 17, 18, form an inspection group for inspecting the foot components 2 of different container sizes. In this embodiment, the inspection group is suitable for inspecting the position of the locating blocks 3 on 40-foot and 45-foot containers. This allows a single container module to integrate multiple container foot sizes, improving the efficiency of the inspection of the locating blocks 3 on hatch covers.

[0045] Specifically, if the positioning blocks 3 on a 40-foot container are being tested, the common testing container feet and the first container foot pair 17 are used to form a testing set to perform a set test on the positioning blocks 3 on the hatch cover. Similarly, if the positioning blocks 3 on a 45-foot container are being tested, the common testing container feet and the second container foot pair 18 are used to form a testing set to perform a set test on the positioning blocks 3 on the hatch cover.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A container mold, characterized in that: It includes a box frame (1) made according to the model size of the container. A box foot component (2) is provided at the bottom of the box frame (1), and the box foot component (2) is arranged at the corresponding position at the bottom of the box frame (1) according to different container model sizes; Multiple box foot components (2) form a detection group, and their positions correspond to the positioning blocks (3) with standard sizes on the hatch cover. The box frame (1) includes at least two layers, namely a lower layer frame (4) and an upper layer frame (5). The lower layer frame (4) and the upper layer frame (5) are arranged in parallel. The upper layer frame (5) and the lower layer frame (4) are connected by side frames around the perimeter to form an integral body, forming a cuboid-shaped cage structure.

2. A container mold according to claim 1, characterized in that: The box foot component (2) has a hollow square tube structure. A bottom plate (6) is provided at the bottom of the box foot component (2), and a positioning perforation (7) that matches the shape of the positioning block (3) is provided on the bottom plate (6).

3. A container mold according to claim 1, characterized in that: Both the upper layer frame (5) and the lower layer frame (4) are made by welding square tubes, and include two cross beams (9) arranged in parallel along the length direction and multiple longitudinal beams (10) arranged in parallel along the width direction.

4. A container mold according to claim 3, characterized in that: The side frame includes support columns (11) vertically arranged along the height direction and first diagonal braces (12) obliquely pulled along the inclined direction; The support columns (11) are made of square tubes. The upper ends of the support columns (11) are welded to the upper layer frame (5), and the lower ends are welded to the lower layer frame (4); The first diagonal braces (12) are made of angle steel, and multiple first diagonal braces (12) are obliquely welded to the side frames around the perimeter to form a stable frame structure with several triangles around the box frame (1).

5. The container mold according to claim 1, characterized in that: There are four lifting lugs (13) distributed in a rectangular shape on the upper side of the upper layer frame (5) for lifting the container box mold.

6. A container mold according to claim 4, characterized in that: The container box mold is a single model detection box mold (14). The upper layer frame (5) and the lower layer frame (4) are in a "day" - shaped frame, and four box foot components (2) are respectively provided at the four corners of the lower end surface of the lower layer frame (4).

7. The container mold according to claim 4, characterized in that: The container box mold is a multi - model detection box mold (15). A pair of common detection box foot pairs (16) are provided at one end of the lower layer frame (4) in the length direction, and a first box foot pair (17) and a second box foot pair (18) are respectively provided at the other end according to the lengths of different container model sizes; The common detection box foot pairs (16) and the first box foot pair (17) or the second box foot pair (18) respectively form a detection group for detecting box foot components (2) of different models of containers.

8. The container mold according to claim 1, characterized in that: It also includes an installation jig (19) for processing and positioning the position of the box foot component (2). The installation jig (19) includes a jig steel plate (20), and positioning blocks (3) positioned according to standard sizes are welded on the jig steel plate (20).

9. A container mold according to claim 8, characterized in that: The flatness tolerance of the jig steel plate (20) is less than ±2 mm.

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