A ship patching mechanism

By designing a multi-layered sealing and real-time monitoring system for ship leak sealing, the problems of loose sealing and lack of monitoring were solved, achieving stable sealing and timely alarm under water pressure, thus improving the reliability and safety of leak sealing.

CN117184348BActive Publication Date: 2026-04-24NAVAL UNIV OF ENG PLA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NAVAL UNIV OF ENG PLA
Filing Date
2023-08-18
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing ship leak sealing mechanisms are not tight enough under high water pressure and lack subsequent monitoring, leading to the failure or damage of sealing components and failing to effectively prevent continuous leakage.

Method used

A ship leak-sealing mechanism was designed, comprising an outer cylinder, a fixed plate, an airbag cushion, an inner shaft, a movable plate, and a protective cover. It achieves multi-layer sealing through a retractable rod assembly and a pressure adjustment component, and is equipped with a moisture detection mechanism for real-time monitoring.

Benefits of technology

It achieves multi-layer sealing under water pressure, promptly detects and alarms any re-leakage, ensures sealing effectiveness, prevents continuous damage, and improves the reliability and safety of leak sealing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of ship plugging, and particularly relates to a ship plugging mechanism, which comprises an outer cylinder, a fixed plate is sleeved at the end of the outer cylinder, an air bag pad is arranged on the inner side of the fixed plate, an inner shaft is rotatably and penetratively arranged in the outer cylinder, an activity plate is sleeved at the end of the inner shaft, the activity plate slides on the outer side of the fixed plate, a retractable rod group is connected between the fixed plate and the activity plate, the retractable rod group is stretched, the expanded air bag pad is pressed on the ship wall, meanwhile, a mounting seat is slidably sleeved on the outer cylinder, a plugging air bag is arranged on the side of the mounting seat close to the fixed plate, a protective cover is rotatably sleeved on the mounting seat, the plugging air bag is located on the inner side of the protective cover, meanwhile, the end surface of the protective cover is in contact with the inner wall of the ship, an extrusion force adjusting assembly is arranged between the outer cylinder and the mounting seat, and a moisture detection mechanism is arranged in the protective cover and used for detecting whether water enters the protective cover.
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Description

Technical Field

[0001] This invention relates to the field of ship leak sealing technology, specifically to a ship leak sealing mechanism. Background Technology

[0002] When a ship is damaged, a large amount of water flows into the ship through the breach, which can easily cause the ship to capsize. Therefore, a ship leak-sealing mechanism is needed. If the leak is sealed only from the inside, it is easy to have an incomplete seal. Under the huge water pressure, it is difficult to guarantee the sealing effect. Moreover, there is no subsequent monitoring structure after the seal is completed. The damaged part is prone to continuous damage or failure of the sealing parts due to the decrease in strength. Therefore, a ship leak-sealing mechanism is needed that can continuously monitor the sealing situation after the seal is completed. Summary of the Invention

[0003] To address the above situation and overcome the shortcomings of existing technologies, this solution provides a ship leak-sealing mechanism, achieved through the following specific technical means: It includes an outer cylinder, with a fixed plate fitted at one end. An airbag is installed inside the fixed plate. An inner shaft rotatably passes through the outer cylinder, with a movable plate fitted at the end of the inner shaft. The movable plate slides against the outer side of the fixed plate. A retractable rod assembly connects the fixed plate and the movable plate. When the movable plate rotates, it extends or retracts the retractable rod assembly, allowing the fixed plate and movable plate extending from the ship's leak hole to cooperate with the extended retractable rod assembly to complete the extension, pressing the inflated airbag against the ship's wall. Simultaneously, a mounting seat slides on the outer cylinder, with a sealing airbag located on the side of the mounting seat near the fixed plate. A protective cover rotatably mounts on the mounting seat, with the sealing airbag located inside the protective cover. The end face of the protective cover contacts the ship's inner wall. A pressure adjustment assembly is provided between the outer cylinder and the mounting seat. A moisture detection mechanism is installed inside the protective cover to detect whether water has entered the protective cover.

[0004] Preferred technical solution 1: The extrusion pressure adjustment component includes a cross frame, a threaded rod 1 and a threaded rod 2. The cross frame is sleeved on the outer cylinder. The threaded rod 1 and the threaded rod 2 rotatably pass through the threaded holes at both ends of the cross frame and are rotatably connected to the mounting base. The turning of the threaded rod 1 and the threaded rod 2 pushes the sealing airbag and the protective cover to move towards the leakage hole.

[0005] Preferred technical solution 2: The threaded rod 1 and the threaded rod 2 are slidably sleeved with a reel 1 and a reel 2, both of which are rotatably mounted on the cross frame. A transmission belt is sleeved between the reel 1 and the reel 2. The transmission belt ensures that when one set of threaded rods is rotated, the other set also rotates.

[0006] Preferred technical solution 3: The moisture detection mechanism includes a collection tube that passes through the protective cover. The collection tube is a transparent tube, and a water level sensor is installed inside the transparent tube. An alarm is installed on the cross frame, and the alarm is electrically connected to the water level sensor.

[0007] Preferred technical solution four: A control valve is provided at the bottom opening of the transparent tube.

[0008] Preferred technical solution five: Both the fixed plate and the movable plate are triangular plates, and the retractable rod assembly is provided in three sets, which are respectively set on the sharp corners of the fixed plate and the movable plate.

[0009] Preferred technical solution six: The retractable rod assembly includes an L-shaped drive rod, a first limiting rod, a second limiting rod, and an extension rod. The L-shaped drive rod is rotatably mounted at one corner of the movable plate. The first limiting rod and the second limiting rod are both rotatably mounted at one corner of the fixed plate. The connection points of the first limiting rod and the second limiting rod with the fixed plate are located on the line connecting the vertex of that corner of the fixed plate and the center point. The extension rod is hinged to the L-shaped drive rod, the first limiting rod, and the second limiting rod. When the inner shaft drives the movable plate to rotate, it will cause the retractable rod assembly to extend and push the L-shaped drive rod, the first limiting rod, the second limiting rod, and the extension rod, which were originally attached to the sides of the movable plate and the fixed plate, away from the fixed plate and the movable plate, pressing the inflated airbag cushion onto the outer wall of the ship.

[0010] The above structure gives this solution the following advantages:

[0011] After the initial sealing is completed, a protective cover is used to protect the inside of the sealed ship's leak. If a leak occurs again, a moisture detection device is used to check whether water has entered the protective cover. If water is detected, an alarm will be triggered immediately, allowing personnel to detect the leak in time.

[0012] Furthermore, the protective cover, while sealing the leak hole with the airbag, also provides a second seal around the leak hole from the outside, achieving a second seal.

[0013] After the expansion pads on the periphery of the boss bulge out, they are extended by the retractable rod assembly and pressed against the outer wall of the ship to seal the leak from the outside, achieving a third seal. At the same time, the retractable rod assembly expands and contacts the outer wall of the ship to provide support and prevent the whole structure from shifting inward. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this solution;

[0016] Figure 2This is a schematic diagram of the tapered component in this design.

[0017] Figure 3 This is a schematic diagram of the outer cylinder and inner shaft of this scheme;

[0018] Figure 4 This is a schematic diagram of the extrusion pressure adjustment component in this solution;

[0019] Figure 5 This is a schematic diagram of the protective cover in this design.

[0020] Among them, 1. Outer cylinder, 2. Fixed plate, 3. Airbag cushion, 4. Inner shaft, 5. Movable plate, 6. Mounting seat, 7. Sealing airbag, 8. Protective cover, 9. Horizontal frame, 10. Threaded rod one, 11. Threaded rod two, 12. Belt reel one, 13. Belt reel two, 14. Transmission belt, 15. Collection pipe, 16. L-shaped drive rod, 17. Limiting rod one, 18. Limiting rod two, 19. Extension rod, 20. Handle, 21. Conical part, 22. Boss. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-5 The ship leak-sealing mechanism includes an outer cylinder 1, with a fixed plate 2 fitted at one end of the outer cylinder 1. An airbag 3 is installed inside the fixed plate 2. An inner shaft 4 is rotatably inserted inside the outer cylinder 1, with a handle 20 on the inner shaft 4. A movable plate 5 is fitted at one end of the inner shaft 4, sliding against the outer side of the fixed plate 2. A retractable rod assembly connects the fixed plate 2 and the movable plate 5. When the retractable rod assembly extends, it presses the inflated airbag 3 against the ship's wall. Simultaneously, a mounting seat 6 is slidably fitted on the outer cylinder 1. A sealing airbag 7 is installed on the side of the mounting seat 6 closest to the fixed plate 2. A protective cover 8 is provided on the rotating sleeve. A sealing gasket is provided on the end face of the protective cover 8 that contacts the ship's wall. The sealing airbag 7 is located inside the protective cover 8. At the same time, the end face of the protective cover 8 contacts the inner wall of the ship. A pressure adjustment component is provided between the outer cylinder 1 and the mounting base 6. A moisture detection mechanism is provided inside the protective cover 8. The moisture detection mechanism includes a collection pipe 15 that runs through the protective cover 8. The collection pipe 15 is a transparent pipe. A water level sensor is provided inside the transparent pipe. An alarm is provided on the cross frame 9. The alarm is electrically connected to the water level sensor. A control valve is provided at the bottom of the transparent pipe.

[0023] Please see Figure 4The ship leak sealing mechanism and the pressure adjustment component include a cross frame 9, a threaded rod 10 and a threaded rod 21. The cross frame 9 is sleeved on the outer cylinder 1. The threaded rod 10 and the threaded rod 21 rotatably pass through the threaded holes at both ends of the cross frame 9 and are rotatably connected to the mounting base 6. The threaded rod 10 and the threaded rod 21 are slidably sleeved with a belt disc 12 and a belt disc 23, both of which are rotatably mounted on the cross frame 9. A transmission belt 14 is sleeved between the belt disc 12 and the belt disc 23.

[0024] Please see Figure 3 The ship's leak-sealing mechanism consists of a fixed plate 2 and a movable plate 5, both of which are triangular plates. Three sets of retractable rods are provided, each positioned at the sharp corner of the fixed plate 2 and the movable plate 5. Each retractable rod set includes an L-shaped drive rod 16, a first limiting rod 17, a second limiting rod 18, and an extension rod 19. The L-shaped drive rod 16 is rotatably positioned at one corner of the movable plate 5. The first limiting rod 17 and the second limiting rod 18 are both rotatably positioned at one corner of the fixed plate 2. The connection points between the first limiting rod 17 and the second limiting rod 18 and the fixed plate 2 are located on the line connecting the vertex of that corner and the center point of the fixed plate 2. The extension rod 19 is hinged to the L-shaped drive rod 16, the first limiting rod 17, and the second limiting rod 18.

[0025] Please see Figure 5 The ship leak-sealing mechanism has a conical part 21 on the inner side of the mounting base 6. The conical part 21 is slidably sleeved on the outer cylinder 1, and the sealing airbag 7 covers the conical part 21.

[0026] Please see Figure 1 The ship leak-sealing mechanism has a boss 22 on the side of the fixed plate 2 near the cross frame 9. The boss 22 is sleeved on the outer cylinder 1, and the expansion pad is set on the periphery of the boss 22. When expanding, it bulges out from the periphery of the boss 22.

[0027] The specific usage process of the ship leak sealing mechanism: In the initial state, the fixed plate 2 and the movable plate 5 overlap, so that the L-shaped drive rod 16, limit rod one 17, limit rod two 18, and extension rod 19 are attached to the sides of the fixed plate 2 and the movable plate 5.

[0028] In use, the fixed plate 2 and the movable plate 5 are passed through the leak hole. Then, the inner shaft 4 is rotated to drive the movable plate 5 to rotate, thereby pushing the L-shaped drive rod 16, limit rod one 17, limit rod two 18, and extension rod 19, which were originally attached to the sides of the movable plate 5 and the fixed plate 2, away from the fixed plate 2 and the movable plate 5. The airbag 3 is an electrically controlled airbag. The airbag 3 is inflated and pressed against the ship wall by the extension and retraction rod group. At the same time, the threaded rod one 10 and the threaded rod two 11 are rotated to push the conical piece 21 into the leak hole. The protective cover 8 is sealed and pressed against the inner wall of the ship. The protective cover 8 is rotated so that the bottom of the transparent tube faces down, and the electrically controlled sealing airbag 7 is activated to inflate. The sealing airbag 7 seals the leak hole. At this time, the water in the protective cover 8 is fully exposed through the opening of the control valve and the control valve is closed.

[0029] When a leak occurs again, water accumulates in the transparent tube. The water level sensor detects the water accumulation and triggers an alarm to alert personnel to handle the situation again.

[0030] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ship leak-sealing mechanism, characterized in that: The system includes an outer cylinder (1), with a fixed plate (2) fitted at one end. An airbag cushion (3) is provided inside the fixed plate (2). An inner shaft (4) is rotatably inserted inside the outer cylinder (1). A movable plate (5) is fitted at one end of the inner shaft (4). The movable plate (5) slides against the outside of the fixed plate (2). A retractable rod assembly connects the fixed plate (2) and the movable plate (5). When the retractable rod assembly extends, it presses the inflated airbag cushion (3) against the ship's wall. Meanwhile, an installation seat (6) is slidably sleeved on the outer cylinder (1), and a sealing airbag (7) is provided on the side of the installation seat (6) near the fixed plate (2). A protective cover (8) is rotatably sleeved on the installation seat (6), and the sealing airbag (7) is located inside the protective cover (8). At the same time, the end face of the protective cover (8) is in contact with the inner wall of the ship. A pressure adjustment component is provided between the outer cylinder (1) and the installation seat (6), and a moisture detection mechanism is provided inside the protective cover (8). The extrusion pressure adjustment assembly includes a cross frame (9), a threaded rod one (10) and a threaded rod two (11). The cross frame (9) is sleeved on the outer cylinder (1). The threaded rod one (10) and the threaded rod two (11) rotatably pass through the threaded holes at both ends of the cross frame (9) and are rotatably connected to the mounting base (6). The moisture detection mechanism includes a collection tube (15) that runs through the protective cover (8). The collection tube (15) is a transparent tube and a water level sensor is installed inside the transparent tube. An alarm is installed on the cross frame (9) and the alarm is electrically connected to the water level sensor.

2. The ship leak-sealing mechanism according to claim 1, characterized in that: A control valve is installed at the bottom of the transparent tube.

3. A ship leak-sealing mechanism according to claim 1, characterized in that: The threaded rod one (10) and the threaded rod two (11) are slidably fitted with a pulley one (12) and a pulley two (13), both of which are rotatably mounted on the cross frame (9). A transmission belt (14) is fitted between the pulley one (12) and the pulley two (13).

4. A ship leak-sealing mechanism according to claim 1, characterized in that: Both the fixed plate (2) and the movable plate (5) are triangular plates, and the retractable rod assembly is provided in three sets, which are respectively set on the sharp corners of the fixed plate (2) and the movable plate (5).

5. A ship leak-sealing mechanism according to claim 4, characterized in that: The retractable rod assembly includes an L-shaped drive rod (16), a first limiting rod (17), a second limiting rod (18), and an extension rod (19). The L-shaped drive rod (16) is rotatably mounted on one corner of the movable plate (5). The first limiting rod (17) and the second limiting rod (18) are both rotatably mounted on one corner of the fixed plate (2). The connection point between the first limiting rod (17) and the second limiting rod (18) and the fixed plate (2) is located on the line connecting the vertex of the corner of the fixed plate (2) and the center point. The extension rod (19) is hinged to the L-shaped drive rod (16), the first limiting rod (17), and the second limiting rod (18).

6. A ship leak-sealing mechanism according to claim 1, characterized in that: A sealing gasket is provided on the end face of the protective cover (8) that contacts the ship's wall.

Citation Information

Patent Citations

  • Ship leaking stoppage air bag device

    CN109533221A

  • Ship leaking stoppage system and method thereof

    CN110356528A