Explosion-proof hatch cover for marine vessels

Abstract

This utility model relates to the field of hatch cover technology, specifically an explosion-proof marine hatch cover, including a hatch opening. A hatch cover is hinged to the upper end of the hatch opening. A limiting plate is fixedly installed on the inner side of the hatch cover. A working groove is formed inside the limiting plate, and a fixing plate is provided in the working groove. A connecting plate is slidably installed in the fixing plate. A limiting groove is formed on the inner wall of the hatch corresponding to the position of the connecting plate. A rotating plate is provided on one side of the fixing plate. The beneficial effect is that when the pressing plate is pressed towards the side with the spring, the pressing plate drives the turntable to rotate. At this time, the connecting plate retracts into the through groove at one end outside the through groove. Rotating the hatch cover installs the limiting plate into the hatch opening. At this time, the pressing plate is not pressed, and the connecting plate extends out of the through groove at one end, extending into the limiting groove. At this time, the hatch cover is placed on the hatch opening, making the hatch cover opening and closing operation simple and relatively firm, not easy to loosen, and improving the explosion resistance to a certain extent.

Description

Technical Field

[0001] This utility model relates to the field of hatch covers, specifically an explosion-proof marine hatch cover. Background Technology

[0002] A hatch cover is a cover for cargo holds on a ship. It is a sealing device that ensures the watertightness of the hull and the safety of the cargo inside the hold. It also has a certain ability to resist pressure. Generally, appropriate hatch covers are installed in the hold of a ship.

[0003] In existing technologies, marine hatch covers are cumbersome to close and prone to loosening over time, resulting in poor explosion resistance. Therefore, this invention proposes an explosion-proof marine hatch cover to address these problems, including a screening device for processing preventative agents. Utility Model Content

[0004] The purpose of this invention is to provide an explosion-proof marine hatch cover to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an explosion-proof marine hatch cover, including a hatch, a hatch cover hinged to the upper end of the hatch cover, a limiting plate fixedly installed on the inner side of the hatch cover, a working groove inside the limiting plate, a fixing plate provided in the working groove, a connecting plate slidably installed in the fixing plate, a limiting groove opened on the inner wall of the hatch corresponding to the position of the connecting plate, and a rotating plate provided on one side of the fixing plate;

[0006] A circular groove is provided on the other side of the hatch, and a through hole is provided on one side of the circular groove. A fixing post is provided in the through hole.

[0007] One end of the fixed column is fixedly installed on the side wall of the rotating plate.

[0008] Preferably, one end of the fixing plate is fixedly installed on the side wall of the working groove, a through hole is provided in the middle of the fixing plate, the fixing plate has a "+" structure, sliding grooves are provided on all four sides of the fixing plate, a sliding groove is provided at the upper end of the sliding groove, the upper end of the sliding groove passes through one side of the fixing plate, and a connecting plate is slidably installed in each of the four sets of sliding grooves.

[0009] Preferably, a connecting column is fixedly installed on one side of the connecting plate, a limit block is fixedly installed on one side of the connecting column, and a moving groove is formed on the surface of the rotating plate.

[0010] Preferably, one end of the connecting column is movably installed in the moving groove, the limiting block is located on one side of the rotating plate, and the surface of the limiting plate is provided with through grooves corresponding to the positions of the four sets of connecting plates, and one end of each of the four sets of connecting plates is slidably installed in the through groove.

[0011] Preferably, a bearing is fixedly installed in the first through hole, a second through hole is opened on the side wall of the limiting plate near the hatch, the outer surface of the fixing column is fixedly connected to the inner wall of the bearing, the fixing column passes through the first through hole, the second through hole and the third through hole, the other end of the fixing column is located in the circular groove, and a turntable is fixedly installed at the other end of the fixing column.

[0012] Preferably, a square groove is provided on one side of the circular groove, and a pressing plate is provided in the square groove. One end of the pressing plate is fixedly connected to the side wall of the turntable, and a spring is provided on one side of the pressing plate. One end of the spring is fixedly connected to the side wall of the pressing plate, and the other end of the spring is fixedly connected to the side wall of the square groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: When the pressing plate is pressed towards the side with the spring, the pressing plate drives the turntable to rotate. At this time, the connecting plate fixedly connected to the bottom end of the connecting column moves within the sliding groove under force. The connecting plate retracts into the groove at one end outside the groove. Rotating the hatch cover allows the limiting plate to be installed inside the hatch. At this time, the pressing plate is not pressed. The connecting plate extends out of the groove at one end, extending into the limiting groove. The hatch cover is then placed on the hatch, making the hatch cover opening and closing operation simple and relatively secure, not easy to loosen, and improving the explosion resistance to a certain extent. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a sectional view of the structural fixing plate of this utility model;

[0016] Figure 3 This is a cross-sectional view of the structural limiting plate of this utility model;

[0017] Figure 4 This is a schematic diagram of the structural fixing plate of this utility model;

[0018] Figure 5 This is a schematic diagram of the tilted structure of this utility model.

[0019] In the diagram: 1. Hatch; 2. Hatch cover; 3. Limiting plate; 4. Limiting groove; 5. Rotating plate; 6. Connecting plate; 7. Working groove; 8. Moving groove; 9. Limiting block; 10. Fixing plate; 11. Turntable; 12. Pressing plate; 13. Bearing; 14. Through hole one; 15. Fixing column; 16. Sliding groove; 17. Connecting column; 18. Square groove; 19. Sliding groove; 20. Through hole two; 21. Through hole three; 22. Circular groove; 23. Spring; 24. Through groove. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1: Please refer to Figures 1-5 This utility model provides a technical solution: an explosion-proof marine hatch cover, including a hatch 1, a hatch cover 2 hinged to the upper end of the hatch 1, a limiting plate 3 fixedly installed on the inner side of the hatch cover 2, a working groove 7 inside the limiting plate 3, a fixing plate 10 provided in the working groove 7, a connecting plate 6 slidably installed in the fixing plate 10, a limiting groove 4 opened on the inner wall of the hatch 1 corresponding to the position of the connecting plate 6, a rotating plate 5 provided on one side of the fixing plate 10; a circular groove 22 opened on the other side of the hatch cover 2, a through hole 14 opened on one side of the circular groove 22, a fixing post 15 provided in the through hole 14; one end of the fixing post 15 is fixedly installed on the side wall of the rotating plate 5.

[0022] In use, pressing the pressing plate 12 pushes it towards the side with the spring 23. The spring 23 contracts under pressure, causing the pressing plate 12 to rotate the turntable 11. Simultaneously, the fixed post 15, fixedly mounted on one side of the turntable 11, also rotates. The fixed post 15 rotates within the inner ring of the bearing 13. At this time, the rotating plate 5, fixedly connected to one side of the fixed post 15, and the connecting post 17 inside the moving groove 8 on the surface of the rotating plate 5 also move. The bottom end of the connecting post 17 is then fixedly connected to the connecting plate 17. The plate 6 moves within the sliding groove 19 under force. At this time, the connecting plate 6 retracts into the through groove 24 at one end outside the through groove 24. Rotate the hatch cover 2 and install the limiting plate 3 into the hatch 1. At this time, the pressing plate 12 is not pressed, and the pressing plate 12 is not under force. The spring 23 rebounds. At this time, the connecting plate 6 extends out of the through groove 24 and into the limiting groove 4. At this time, the hatch cover 2 is completed and placed on the hatch 1, making the opening and closing of the hatch cover 2 simple and relatively firm, not easy to loosen, and improving the blast resistance to a certain extent.

[0023] Example 2: Based on Example 1, in order to facilitate the movement of the connecting plate 6, one end of the fixing plate 10 is fixedly installed on the side wall of the working groove 7. A through hole 21 is opened in the middle of the fixing plate 10. The fixing plate 10 has a "+" structure. Sliding grooves 19 are opened on all four sides of the fixing plate 10. A sliding groove 16 is opened at the upper end of the sliding groove 19. The upper end of the sliding groove 16 passes through one side of the fixing plate 10. The connecting plate 6 is slidably installed in each of the four sets of sliding grooves 19. A connecting column 17 is fixedly installed on one side of the connecting plate 6. A limit block 9 is fixedly installed on one side of the connecting column 17. A moving groove 8 is opened on the surface of the rotating plate 5. One end of the connecting column 17 is movably installed in the moving groove 8. The limit block 9 is located on one side of the rotating plate 5. A through groove 24 is opened on the surface of the limit plate 3 corresponding to the position of the four sets of connecting plates 6. One end of each of the four sets of connecting plates 6 is slidably installed on the outside of the through groove 24.

[0024] The pressing plate 12 drives the turntable 11 to rotate. At this time, the fixed column 15 fixedly installed on one side of the turntable 11 also rotates. The fixed column 15 rotates on the inner ring surface of the bearing 13. At this time, the rotating plate 5 fixedly connected to one side of the fixed column 15 and the connecting column 17 inside the moving groove 8 opened on the surface of the rotating plate 5 also move. At this time, the connecting plate 6 fixedly connected to the bottom end of the connecting column 17 is subjected to force and moves in the sliding groove 19.

[0025] Example 3: Based on Example 2, in order to facilitate opening and closing the hatch 2, a bearing 13 is fixedly installed in the through hole 14. A through hole 20 is opened on the side wall of the limiting plate 3 near the hatch 2. The outer surface of the fixing post 15 is fixedly connected to the inner wall of the bearing 13. The fixing post 15 passes through the through hole 14, the through hole 20 and the through hole 3 21. The other end of the fixing post 15 is located in the circular groove 22. A turntable 11 is fixedly installed on the other end of the fixing post 15. A square groove 18 is opened on one side of the circular groove 22. A pressing plate 12 is provided in the square groove 18. One end of the pressing plate 12 is fixedly connected to the side wall of the turntable 11. A spring 23 is provided on one side of the pressing plate 12. One end of the spring 23 is fixedly connected to the side wall of the pressing plate 12. The other end of the spring 23 is fixedly connected to the side wall of the square groove 18.

[0026] The connecting plate 6, which is fixedly connected to the bottom of the connecting column 17, moves within the sliding groove 19 under force. At this time, the connecting plate 6 retracts into the through groove 24 at one end outside the through groove 24. Rotate the hatch cover 2 and install the limiting plate 3 into the hatch 1. At this time, the pressing plate 12 is not pressed, and the pressing plate 12 is not under force, so the spring 23 rebounds. At this time, the connecting plate 6 extends out of the through groove 24 at one end and extends into the limiting groove 4. At this time, the hatch cover 2 is closed on the hatch 1.

[0027] In actual use, press the pressing plate 12 toward the side with the spring 23. The pressing plate 12 drives the turntable 11 to rotate. At this time, the connecting plate 6, which is fixedly connected to the bottom of the connecting column 17, moves within the sliding groove 19 under force. The connecting plate 6 retracts into the through groove 24 at one end outside the through groove 24. Rotate the hatch cover 2 and install the limiting plate 3 into the hatch 1. At this time, do not press the pressing plate 12. The connecting plate 6 extends out of the through groove 24 at one end and into the limiting groove 4. At this time, the hatch cover 2 is placed on the hatch 1, making the opening and closing of the hatch cover 2 simple and relatively firm, not easy to loosen, and improving the explosion resistance to a certain extent.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof marine hatch cover, comprising a hatch (1), characterized in that: A hatch cover (2) is hinged to the upper end of the hatch (1). A limiting plate (3) is fixedly installed on the inner side of the hatch cover (2). A working groove (7) is formed inside the limiting plate (3). A fixing plate (10) is provided in the working groove (7). A connecting plate (6) is slidably installed in the fixing plate (10). A limiting groove (4) is formed on the inner wall of the hatch (1) corresponding to the position of the connecting plate (6). A rotating plate (5) is provided on one side of the fixing plate (10). A circular groove (22) is provided on the other side of the hatch (2), and a through hole (14) is provided on one side of the circular groove (22), and a fixing post (15) is provided in the through hole (14). One end of the fixed column (15) is fixedly installed on the side wall of the rotating plate (5).

2. The explosion-proof marine hatch cover according to claim 1, characterized in that: One end of the fixed plate (10) is fixedly installed on the side wall of the working groove (7). A through hole (21) is opened in the middle of the fixed plate (10). The fixed plate (10) has a "+" structure. Sliding grooves (19) are opened on all four sides of the fixed plate (10). A sliding groove (16) is opened at the upper end of the sliding groove (19). The upper end of the sliding groove (16) passes through one side of the fixed plate (10). A connecting plate (6) is slidably installed in each of the four sets of sliding grooves (19).

3. The explosion-proof marine hatch cover according to claim 1, characterized in that: A connecting column (17) is fixedly installed on one side of the connecting plate (6), and a limit block (9) is fixedly installed on one side of the connecting column (17). A moving groove (8) is opened on the surface of the rotating plate (5).

4. The explosion-proof marine hatch cover according to claim 3, characterized in that: One end of the connecting column (17) is movably installed in the moving groove (8), the limiting block (9) is located on one side of the rotating plate (5), and the surface of the limiting plate (3) is provided with through grooves (24) corresponding to the positions of the four sets of connecting plates (6). One end of each of the four sets of connecting plates (6) is slidably installed in the through grooves (24).

5. The explosion-proof marine hatch cover according to claim 1, characterized in that: A bearing (13) is fixedly installed in the first through hole (14). The limiting plate (3) has a second through hole (20) on one side wall near the hatch (2). The outer surface of the fixing column (15) is fixedly connected to the inner wall of the bearing (13). The fixing column (15) passes through the first through hole (14), the second through hole (20) and the third through hole (21). The other end of the fixing column (15) is located in the circular groove (22). A turntable (11) is fixedly installed on the other end of the fixing column (15).

6. The explosion-proof marine hatch cover according to claim 1, characterized in that: A square groove (18) is provided on one side of the circular groove (22). A pressing plate (12) is provided in the square groove (18). One end of the pressing plate (12) is fixedly connected to the side wall of the turntable (11). A spring (23) is provided on one side of the pressing plate (12). One end of the spring (23) is fixedly connected to the side wall of the pressing plate (12), and the other end of the spring (23) is fixedly connected to the side wall of the square groove (18).

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