An adjustable cargo hatch cover suitable for bulk carriers

Abstract

This utility model discloses an adjustable cargo hold cover suitable for bulk carriers, applied in the field of ship hatch covers. A drive motor, in conjunction with a threaded rod, causes a drive block to move horizontally along with a fixed block and the cover, thereby achieving automated opening and closing of the cover. This allows for quick and convenient opening and closing. The drive block, fixed block, and adjustment structure allow for manual adjustment of the horizontal distance between the drive block and the fixed block, ensuring a tight seal when both covers are closed. Through the coordinated arrangement of a drying box, an L-shaped sealing plate, and an L-shaped pusher, when the cover is open, the L-shaped sealing plate, under the action of a tension spring, covers the bottom of the drying box, preventing ineffective dehumidification by the desiccant. When the cover is closed, the L-shaped pusher pushes the L-shaped sealing plate away from the drying box, allowing the desiccant to perform its dehumidification function, significantly reducing the adverse effects on cargo inside the hold caused by poor sealing and the entry of external moisture.

Description

Technical Field

[0001] This utility model relates to the field of ship hatch covers, and in particular to an adjustable cargo hatch cover suitable for bulk carriers. Background Technology

[0002] Ship hatch covers are sealing devices that ensure the watertightness of the hull and the safety of the cargo inside the hold. They also have a certain ability to resist pressure. The covers at the openings of cargo holds on the open decks of ships are usually made of steel to ensure the airtightness of the cargo hold openings. Common types of ship hatch covers include folding type, side-opening type, and lift-off type.

[0003] A search revealed, for example, a bulk carrier cargo hatch cover and a bulk carrier disclosed in patent publication number CN119218360A. The bulk carrier cargo hatch cover includes a hatch cover and a hatch coaming. The hatch cover is located above the open deck, and the hatch coaming is embedded within the open deck. A first clamping strip is provided on the open deck, and a first sealing component is provided at the bottom of the hatch cover. A second clamping strip is provided on the hatch coaming panel, and a second sealing component is provided at the bottom of the hatch cover. A hatch cover skirt is fixedly provided at the bottom of the hatch cover, positioned between the first and second sealing components. An inflatable clamping component is provided on the hatch coaming panel. This bulk carrier cargo hatch cover has the advantage of multi-point watertight protection.

[0004] Based on the above search and combined with existing technology, it was found that most of the cargo hatch covers similar to those disclosed above are electrically operated. However, during use, their flexible sealing structure gradually ages and deforms, and the fixed displacement when the cargo hatch is closed makes it difficult to guarantee the sealing performance. Utility Model Content

[0005] The core of this invention lies in solving the problem of insufficient sealing when the cargo hold cover is closed due to the fixed displacement of the drive block (5), the fixing block (8), and the adjustment structure. At the same time, it can significantly reduce the adverse effects of external moisture entering the cargo hold caused by poor sealing.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] An adjustable cargo hold cover suitable for bulk carriers includes two covers that are horizontally slidably installed on the upper end of the hold cofferdam. Flexible sealing strips are provided at the ends of the two covers that are close to each other. An opening and closing mechanism is installed between the two covers and the hold cofferdam.

[0008] The opening and closing mechanism includes a drive motor, a threaded rod, and two drive blocks. An extension block for horizontal rotation of the threaded rod is fixed to the side end of the hopper enclosure. The drive motor is installed on the side end of one of the extension blocks, and the output end of the drive motor is coaxially fixed with the threaded rod.

[0009] Both drive blocks are threaded onto the threaded rod. A guide rod that slides through the drive blocks is horizontally fixed between the two extension blocks. Both covers are fixed at their lower ends outside the hopper enclosure. The two fixed blocks are set one-to-one with the two drive blocks. An adjustment structure is connected between the fixed blocks and the drive blocks to adjust the horizontal distance between the drive blocks and the fixed blocks.

[0010] By setting up a drive block, a fixed block, and an adjustment structure, the horizontal distance between the drive block and the fixed block can be manually adjusted, thereby ensuring the sealing performance of the two covers when they are closed.

[0011] Furthermore, the threaded rod is symmetrically provided with two opposite threaded sections, and the two drive blocks are symmetrically threaded onto the two opposite threaded sections.

[0012] Furthermore, the adjustment structure includes an adjustment screw and a limiting protrusion integrally fixed to the side end of the fixed block. The side end of the drive block is provided with a groove for the limiting protrusion to slide horizontally into. The adjustment screw is rotatably mounted on the drive block and threaded through the limiting protrusion.

[0013] Furthermore, a desiccant is installed on the lower end of the cover, and the bottom of the desiccant is mesh-like.

[0014] Furthermore, the drying box can be detachably installed on the lower end of one of the covers near the flexible sealing strip.

[0015] Furthermore, a limiting slide rod is horizontally fixed on the side of the drying box away from the flexible sealing strip, and an L-shaped sealing plate is slidably sleeved on the limiting slide rod. A tension spring is horizontally fixed between the L-shaped sealing plate and the drying box.

[0016] The L-shaped sealing plate slides and fits against the bottom surface of the drying box. Another cover has an L-shaped push block that is flush with the L-shaped sealing plate at the bottom end near the flexible sealing strip. When both covers are closed, the L-shaped push block pushes the L-shaped sealing plate away from the drying box.

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] (1) This solution uses a drive motor and a threaded rod to make the drive block move horizontally with the fixed block and the cover, thereby realizing the automatic opening and closing of the cover, making the cover quick and convenient. Through the setting of the drive block, the fixed block and the adjustment structure, the horizontal distance between the drive block and the fixed block can be manually adjusted, thereby ensuring the sealing of the two covers in the closed state.

[0019] (2) This solution uses the combination of a drying box, an L-shaped sealing plate and an L-shaped pusher block. When the cover is open, the L-shaped sealing plate covers the bottom of the drying box under the action of the tension spring, which prevents the desiccant in the drying box from being ineffective in dehumidifying. When the cover is closed, the L-shaped pusher block pushes the L-shaped sealing plate away from the drying box. At this time, the desiccant plays a dehumidifying role, which greatly reduces the adverse effects of external moisture entering the cargo hold due to poor sealing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the opening and closing mechanism of this utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of the fixing block of this utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the present invention;

[0024] Figure 5 for Figure 4 Enlarged structural diagram at point A;

[0025] Figure 6 This is a schematic diagram of the structure of the cover of this utility model.

[0026] Explanation of the labels in the diagram:

[0027] 1. Cover; 101. Flexible sealing strip; 2. Storage opening enclosure; 3. Extension block; 4. Drive motor; 5. Drive block; 6. Threaded rod; 7. Guide slide rod; 8. Fixing block; 9. Adjusting screw; 10. Limiting protrusion; 11. Drying box; 12. L-shaped sealing plate; 13. Tension spring; 14. Limiting slide rod; 15. L-shaped push block. Detailed Implementation

[0028] The technical solution will now be clearly and completely described with reference to the accompanying drawings in the embodiments of this utility model.

[0029] First implementation method:

[0030] Please see Figures 1-5 An adjustable cargo hold cover suitable for bulk carriers includes two cover bodies 1 that are horizontally slidably installed on the upper end of the hold cofferdam 2. Each of the two cover bodies 1 has a flexible sealing strip 101, such as a silicone rubber sealing strip, at the end that is close to each other. An opening and closing mechanism is installed between the two cover bodies 1 and the hold cofferdam 2.

[0031] Specifically, the opening and closing mechanism includes a drive motor 4, a threaded rod 6, and two drive blocks 5. An extension block 3 for horizontal rotation of the threaded rod 6 is fixed to the side end of the hopper enclosure 2. The drive motor 4 is installed on the side end of one of the extension blocks 3, and the output end of the drive motor 4 is coaxially fixed with the threaded rod 6. Both drive blocks 5 are threaded onto the threaded rod 6. More specifically, two opposite threaded sections are symmetrically arranged on the threaded rod 6, and the two drive blocks 5 are symmetrically threaded onto the two opposite threaded sections. A guide rod 7 that slides through the drive blocks 5 is horizontally fixed between the two extension blocks 3. A fixing block 8 is fixed to the lower end of the two covers 1 located outside the hopper enclosure 2, and the two fixing blocks 8 are arranged in a one-to-one correspondence with the two drive blocks 5. An adjustment structure is connected between the fixing blocks 8 and the drive blocks 5 to adjust the horizontal distance between the drive blocks 5 and the fixing blocks 8.

[0032] The drive motor 4 causes the drive block 5, along with the fixed block 8 and the cover 1, to move horizontally via the threaded rod 6, thereby achieving automatic opening and closing of the cover 1. The drive block 5, the fixed block 8, and the adjustment structure allow for manual adjustment of the horizontal distance between the drive block 5 and the fixed block 8, thus ensuring the sealing of the two covers 1 in the closed state.

[0033] Regarding the adjustment structure, specifically, such as Figure 3 As shown, the adjustment structure includes an adjustment screw 9 and a limiting protrusion 10 integrally fixed to the side end of the fixed block 8. The side end of the drive block 5 is provided with a groove for the limiting protrusion 10 to slide horizontally into. The adjustment screw 9 is rotatably mounted on the drive block 5 and threaded through the limiting protrusion 10.

[0034] Since the distance that the drive block 5 moves horizontally with the fixed block 8 and the cover 1 through the threaded rod 6 is generally fixed, when the flexible sealing strip 101 ages and deforms, the sealing performance deteriorates. It is necessary to make the two covers 1 close more tightly to ensure the sealing performance. At this time, the adjusting screw 9 can be manually rotated so that the limiting protrusion 10 moves relative to the drive block 5 with the cover 1 through the fixed block 8, thereby ensuring the sealing performance of the cover 1 in the closed state.

[0035] Second implementation method:

[0036] For goods stored in warehouses that have stricter requirements for dryness in the storage environment, such as... Figure 4 , Figure 5 and Figure 6 As shown, based on the first embodiment, a drying box 11 is also installed on the lower end face of the cover 1. Specifically, the drying box 11 is detachably installed on the lower end of one of the covers 1 near the flexible sealing strip 101, for example by snap-fit ​​or by screw connection. The drying box 11 contains a conventional desiccant, such as silica gel particles, and the bottom end of the drying box 11 is mesh-shaped.

[0037] Among them, a limiting slide rod 14 is horizontally fixed on the side of the drying box 11 away from the flexible sealing strip 101. An L-shaped sealing plate 12 is slidably sleeved on the limiting slide rod 14. A tension spring 13 is horizontally fixed between the L-shaped sealing plate 12 and the drying box 11. The L-shaped sealing plate 12 slides and fits against the bottom surface of the drying box 11. An L-shaped push block 15, which is flush with the L-shaped sealing plate 12, is fixed at the bottom end of the other cover 1 near the flexible sealing strip 101.

[0038] When the cover 1 is open, the L-shaped sealing plate 12 covers the bottom of the drying box 11 under the action of the tension spring 13, preventing the desiccant in the drying box 11 from dehumidifying ineffectively. When the cover 1 is closed, the L-shaped pusher 15 pushes the L-shaped sealing plate 12 away from the drying box 11, at which time the desiccant plays a dehumidifying role.

[0039] Of course, the silica gel particles used as desiccant can be conventional moisture-absorbing and color-changing silica gel. After opening the cover 1, personnel can judge the degree of moisture inside the warehouse based on the color change of the desiccant.

[0040] It should be noted that the specific models and specifications of the electrical equipment involved in this solution need to be selected and determined based on the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, so they will not be described in detail here. The power supply and principles of the electrical equipment involved are clear to those skilled in the art, and will not be described in detail here.

[0041] The above description is merely a preferred embodiment of this utility model; it encompasses all the protection scope of this utility model. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be covered within the protection scope of this utility model.

Claims

1. An adjustable cargo hold cover suitable for bulk carriers, comprising two cover bodies (1) horizontally slidably mounted on the upper end of a hold cofferdam (2), wherein each of the two cover bodies (1) having a flexible sealing strip (101) at its close end, characterized in that: A common opening and closing mechanism is installed between the two covers (1) and the warehouse enclosure (2); The opening and closing mechanism includes a drive motor (4), a threaded rod (6) and two drive blocks (5). The side end of the hopper enclosure (2) is fixed with an extension block (3) for the threaded rod (6) to be installed horizontally. The drive motor (4) is installed on the side end of one of the extension blocks (3), and the output end of the drive motor (4) is coaxially fixed with the threaded rod (6). Both drive blocks (5) are threaded onto the threaded rod (6). A guide rod (7) that slides through the drive block (5) is horizontally fixed between the two extension blocks (3). Both covers (1) are fixed at their lower ends outside the hopper enclosure (2) with fixing blocks (8). The two fixing blocks (8) are arranged in a one-to-one correspondence with the two drive blocks (5). An adjustment structure is connected between the fixing blocks (8) and the drive blocks (5) to adjust the horizontal distance between the drive blocks (5) and the fixing blocks (8).

2. An adjustable cargo hatch cover suitable for bulk carriers according to claim 1, characterized in that: The threaded rod (6) is symmetrically provided with two opposite threaded sections, and the two drive blocks (5) are symmetrically threaded onto the two opposite threaded sections.

3. An adjustable cargo hatch cover suitable for bulk carriers according to claim 1, characterized in that: The adjustment structure includes an adjustment screw (9) and a limiting protrusion (10) integrally fixed to the side end of the fixed block (8). The side end of the drive block (5) is provided with a groove for the limiting protrusion (10) to slide horizontally. The adjustment screw (9) is rotatably mounted on the drive block (5) and threaded through the limiting protrusion (10).

4. An adjustable cargo hatch cover suitable for bulk carriers according to claim 1, characterized in that: A drying box (11) is installed on the lower end face of the cover (1), the drying box (11) contains a desiccant, and the bottom of the drying box (11) is mesh-shaped.

5. An adjustable cargo hatch cover suitable for bulk carriers according to claim 4, characterized in that: The drying box (11) is detachably installed on the lower end of one of the covers (1) near the flexible sealing strip (101).

6. An adjustable cargo hatch cover suitable for bulk carriers according to claim 5, characterized in that: A limiting slide rod (14) is horizontally fixed on the side of the drying box (11) away from the flexible sealing strip (101). An L-shaped sealing plate (12) is slidably sleeved on the limiting slide rod (14). A tension spring (13) is horizontally fixed between the L-shaped sealing plate (12) and the drying box (11). The L-shaped sealing plate (12) slides and fits against the bottom surface of the drying box (11). Another cover (1) has an L-shaped push block (15) that is flush with the L-shaped sealing plate (12) fixed at the bottom end near the flexible sealing strip (101). When the two covers (1) are closed, the L-shaped push block (15) pushes the L-shaped sealing plate (12) away from the drying box (11).

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