A marine buoy anti-biofouling device

By using a mechanical scraping active cleaning method, the problem of increased weight and corrosion caused by marine organisms adhering to the buoys is solved, achieving a fully automated and long-lasting anti-adhesion effect, which is suitable for marine buoys far from the shoreline.

CN224546247UActive Publication Date: 2026-07-24交通运输部南海航海保障中心港珠澳大桥航标处
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
交通运输部南海航海保障中心港珠澳大桥航标处
Filing Date
2025-10-21
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

After long-term use in the ocean, existing navigation marks become heavier and corroded by marine organisms, and the effectiveness of traditional anti-adhesion materials or coatings gradually decreases, making it difficult to effectively prevent marine organisms from adhering.

Method used

The active cleaning method employs mechanical scraping, using a motor-driven gear-internal gear ring transmission system combined with L-shaped and U-shaped frame designs to achieve automated cleaning of the underwater parts of the navigation beacon. It utilizes solar power generation to achieve fully automated operation.

Benefits of technology

It effectively removes marine organisms, has a stable structure, strong adaptability, reduces operation and maintenance costs, meets green environmental protection requirements, cleans without dead corners, and has a long-lasting anti-fouling effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of navigation mark marine-bio-attachment-resistant devices, specifically related to navigation mark technical field, including: navigation mark main body, the navigation mark main body outer end is fixed with first fixed guard ring, the first fixed guard ring top is equipped with inner tooth ring, the inner tooth ring inside one side is equipped with power component;Two U-shaped connecting frames, two the outer end of U-shaped connecting frame is fixedly connected with inner tooth ring two sides respectively, two the other end of U-shaped connecting frame is fixedly equipped with one L-shaped movable frame, the vertical portion and horizontal portion inner end of L-shaped movable frame are fixedly equipped with first cleaning scraper and second cleaning scraper respectively.The utility model breaks through the passive protection thought of traditional dependence on antifouling coating, using the active cleaning mode of mechanical scraping.No matter how marine organism adheres, it can be effectively removed by regular physical scraping, fundamentally solves the problem that antifouling coating is easily invalid, and the anti-adhesion effect is durable and stable.
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Description

Technical Field

[0001] This utility model relates to the field of navigation mark technology, specifically to a navigation mark anti-marine organism attachment device. Background Technology

[0002] Navigational aids, also known as navigational markers, are visual, acoustic, and radio navigational aids installed to help ships navigate safely, economically, and conveniently. After prolonged immersion in seawater, the floating portion of a navigational aid often accumulates a large amount of marine life, primarily crustaceans such as mussels, algae, and possibly other microorganisms. This abundant buildup increases the weight of the navigational aid, thus affecting its buoyancy. Furthermore, the presence of these organisms can not only increase the weight of the aid but also cause erosion and damage to its surface, such as corrosion and abrasion.

[0003] Currently, anti-adhesion materials or coatings are commonly used to prevent marine organisms from attaching to navigation marks. However, navigation marks immersed in seawater usually lose their anti-adhesion ability after a period of use and are still difficult to resist the attachment of marine organisms, which is a certain shortcoming. Utility Model Content

[0004] The purpose of this invention is to provide a device for preventing marine organism attachment in navigation marks, thereby addressing the aforementioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a navigation buoy anti-marine biofouling device, comprising:

[0006] The navigation beacon body has a first fixed protective ring fixed at its outer end. The first fixed protective ring is located above the water surface. The top of the first fixed protective ring has an internal toothed ring, and a power component is located on one side inside the internal toothed ring.

[0007] Two U-shaped connecting frames are symmetrically arranged on both sides of the outer end of the first fixed protective ring. The inner end of the U-shaped connecting frame is in sliding contact with the first fixed protective ring. One end of each of the two U-shaped connecting frames is fixedly connected to both sides of the outer end of the inner toothed ring. An L-shaped movable frame is fixedly provided at the other end of each of the two U-shaped connecting frames. The L-shaped movable frame is located at the bottom of the first fixed protective ring. A first cleaning scraper and a second cleaning scraper are fixedly provided at the inner ends of the vertical and horizontal parts of the L-shaped movable frame, respectively. The first cleaning scraper is located at the outer end of the navigation beacon body located below the water surface, and the second cleaning scraper is located at the bottom end of the navigation beacon body located below the water surface.

[0008] Preferably, a second fixed protective ring is fixedly provided at the outer end of the main body of the navigation mark, and the second fixed protective ring is located at the top of the inner toothed ring.

[0009] Preferably, the power assembly includes a motor fixedly mounted on the top of the second fixed protective ring. The motor is located on one side of the beacon body. The output shaft of the motor is fixedly provided with a rotating rod. The bottom end of the rotating rod passes through the second fixed protective ring and is rotatably connected to the top of the inner gear ring through a bearing. The rotating rod is rotatably connected to the second fixed protective ring through a bearing. A gear is fixedly mounted on the outer end of the rotating rod. The gear is located on the inner end of the inner gear ring and meshes with the inner gear ring.

[0010] Preferably, a protective frame is fixedly provided at the top of the second fixed protective ring, and the motor is located inside the protective frame.

[0011] Preferably, a connecting ring is fixed between one end of the lateral portion of the two L-shaped movable frames. The connecting ring is located at the bottom of the buoy body and is located outside the counterweight balance structure at the bottom of the buoy body.

[0012] Preferably, the top end of the first fixed protective ring is provided with an annular groove, and an annular slip ring is provided inside the annular groove. The top end of the annular slip ring is fixedly connected to the bottom end of the internal toothed ring.

[0013] Preferably, a controller is fixedly installed at the top of the main body of the navigation beacon, and the motor is connected to the output end of the controller.

[0014] Preferably, the top of the beacon body is fixed with two solar power generation systems and a battery. The battery stores the electricity generated by the two solar power generation systems and provides power to the motor and controller.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. Shifting from passive protection to active cleaning for long-lasting and reliable results: This invention breaks through the traditional passive protection approach that relies on antifouling coatings, adopting an active cleaning method of mechanical scraping. Regardless of how marine organisms adhere, they can be effectively removed through regular physical scraping, fundamentally solving the problem of easy failure of antifouling coatings, resulting in a long-lasting and stable anti-adhesion effect.

[0017] 2. Automated operation, energy saving and environmental protection: The device achieves automatic start and stop at set times through a controller, eliminating the need for frequent maintenance and greatly reducing operation and maintenance costs and risks. Powered by solar energy, it is energy self-sufficient, meeting green and environmental protection requirements, and is especially suitable for maritime navigation aids far from the shoreline.

[0018] 3. Ingenious structural design ensures thorough cleaning: The gear-internal gear ring transmission system converts the motor's rotation into a cleaning motion that surrounds the buoy's main body. Combined with a unique L-shaped movable frame and the design of the first and second cleaning scrapers, it can simultaneously clean the buoy's underwater outer wall and bottom, achieving comprehensive coverage of critical attachment areas and eliminating cleaning blind spots.

[0019] 4. Stable operation and strong adaptability: The design of the annular groove and slip ring ensures smooth rotation of the transmission components. The connecting fixing ring enhances the overall integrity of the movable frame, making it better able to withstand the impact of waves. The device has a robust structure and can adapt well to complex marine working environments. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;

[0023] Figure 3 This is a three-dimensional sectional view of the second fixed protective ring of this utility model;

[0024] Figure 4 For the present utility model Figure 3 Schematic diagram of the enlarged structure of A in the middle;

[0025] Figure 5 This is a three-dimensional structural diagram of the U-shaped connecting frame, L-shaped movable frame, first cleaning scraper, and second cleaning scraper of this utility model;

[0026] Figure 6 This is a schematic diagram of the connection structure between the first fixed protective ring and the internal toothed ring of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Main body of the navigation mark; 2. First fixed protective ring; 3. Internal toothed ring; 4. U-shaped connecting frame; 5. L-shaped movable frame; 6. First cleaning scraper; 7. Second cleaning scraper; 8. Second fixed protective ring; 9. Motor; 10. Rotating rod; 11. Gear; 12. Protective frame; 13. Connecting and fixing ring; 14. Annular groove; 15. Annular slip ring; 16. Controller; 17. Solar power generation system; 18. Battery. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0030] like Figures 1 to 6 As shown, this utility model provides a device for preventing marine organisms from attaching to navigation marks, which aims to effectively solve the problem of marine organisms attaching to the underwater parts of navigation marks through automatic mechanical cleaning.

[0031] The main body of the device is the buoy body 1, which floats in the water as a buoy. A first fixed protective ring 2 is fixedly installed at the outer end of the buoy body 1, above the water surface. The top of the first fixed protective ring 2 has an annular groove 14, and an annular slip ring 15 fits into the annular groove 14 and can slide smoothly along it. An internal toothed ring 3 is fixedly installed at the top of the annular slip ring 15, thereby allowing the internal toothed ring 3 to rotate stably relative to the first fixed protective ring 2.

[0032] The core of the entire cleaning mechanism is the power assembly. This power assembly includes a motor 9, a rotating rod 10, and a gear 11. To ensure the stable installation of the motor 9 and prevent it from being subjected to external impacts, a second fixed protective ring 8 is fixedly installed at the outer end of the beacon body 1, above the internal gear ring 3, and a protective frame 12 is fixedly installed at the top of the second fixed protective ring 8. The motor 9 is preferably a waterproof, low-speed, high-torque DC servo motor or stepper motor, and its housing is reliably fixed inside the protective frame 12. The output shaft of the motor 9 is vertically downward and fixedly connected to the rotating rod 10. The rotating rod 10 passes through the second fixed protective ring 8 and is rotatably connected to it through a bearing; the bottom end of the rotating rod 10 is also connected to the top end of the internal gear ring 3 through a bearing. At the outer end of the rotating rod 10, a gear 11 is fixedly installed, which is located inside the internal gear ring 3 and meshes with it.

[0033] The cleaning actuator consists of two symmetrically arranged components. Each component includes a U-shaped connecting frame 4 and an L-shaped movable frame 5. The inner sides of the two U-shaped connecting frames 4 slide in contact with the outer end of the first fixed protective ring 2, and their upper ends are fixedly connected to the outer sides of the inner toothed ring 3, respectively. The lower end of each U-shaped connecting frame 4 is fixedly connected to an L-shaped movable frame 5, thus the L-shaped movable frame 5 is suspended at the bottom of the first fixed protective ring 2. A connecting fixing ring 13 is also fixedly connected between the transverse ends of the two L-shaped movable frames 5. This structure significantly enhances the rigidity and stability of the entire movable frame, enabling it to move in a coordinated manner. A first cleaning scraper 6 is fixedly installed on the inner side of the vertical part of the L-shaped movable frame 5, with its cutting edge adhering to the outer wall of the buoy body 1 below the water surface; a second cleaning scraper 7 is fixedly installed on the inner side of the transverse part of the L-shaped movable frame 5, with its cutting edge adhering to the bottom end of the buoy body 1.

[0034] To achieve automated operation and energy self-sufficiency, a control and energy system is integrated at the top of the main body 1 of the navigation beacon. The controller 16, essentially a programmable logic controller (PLC) or embedded microcontroller, serves as the control brain of the device. The motor 9 is electrically connected to the output of the controller 16 and receives its control commands. A solar power generation system 17 (typically including solar panels, a support frame, and a junction box) and a storage battery 18 (preferably a deep-cycle, corrosion-resistant gel lead-acid battery or a lithium-ion battery) together constitute the energy module. The solar power generation system 17 converts solar energy into electrical energy, which is then stored in the storage battery 18, providing continuous power to the motor 9 and the controller 16.

[0035] The working principle of this utility model is as follows:

[0036] When the buoy is submerged in seawater for an extended period and marine life begins to attach to its underwater portion, this invention can be activated. The controller 16 can automatically start the motor 9 according to a preset program, such as every 24 hours.

[0037] After the motor 9 starts, it drives the rotating rod 10 and the gear 11 fixed on it to rotate. Since the gear 11 meshes with a rotatable internal gear ring 3, this meshing relationship generates a force that causes the gear 11 to revolve around the central axis of the internal gear ring 3. This revolve motion forces the gear 11 to drive the internal gear ring 3 through the rotating rod 10, so that it begins to slowly rotate around the beacon body 1 under the support and guidance of the annular groove 14 and the annular slip ring 15.

[0038] The rotation of the internal toothed ring 3 is synchronously transmitted to the L-shaped movable frames 5 on both sides through the two U-shaped connecting frames 4, causing the entire cleaning frame (including the U-shaped connecting frames 4, the L-shaped movable frames 5, and the connecting fixing ring 13) to begin rotating around the underwater part of the buoy body 1. The first cleaning scraper 6 and the second cleaning scraper 7 fixed to it move accordingly: the first cleaning scraper 6 scrapes off the attachments on the outer wall of the buoy body 1, while the second cleaning scraper 7 scrapes off the attachments at the bottom of the buoy body 1. The scraped-off biological attachments will naturally dissipate under the action of seawater currents.

[0039] After a cleaning task is completed, controller 16 stops motor 9 from operating. The entire cleaning process requires no manual intervention, achieving fully automated, periodic active protection and fundamentally overcoming the shortcomings of traditional antifouling coatings that are prone to failure.

[0040] This invention breaks through the traditional passive protection approach that relies on antifouling coatings, and adopts an active cleaning method of mechanical scraping. Regardless of how marine organisms attach, they can be effectively removed through regular physical scraping, fundamentally solving the problem of easy failure of antifouling coatings. The anti-adhesion effect is long-lasting and stable. Specifically, this invention addresses the problem in existing technologies where, to prevent marine organisms from attaching to navigation marks, anti-adhesion materials or coatings are typically used. However, navigation marks immersed in seawater usually experience a gradual decrease in anti-adhesion ability after a period of use, still making it difficult to prevent marine organism attachment, thus presenting certain shortcomings.

[0041] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for preventing marine organism attachment in navigational aids, characterized in that, include: The navigation mark body (1) has a first fixed protective ring (2) fixed at its outer end. The first fixed protective ring (2) is located above the water surface. The top of the first fixed protective ring (2) has an internal toothed ring (3). A power component is provided on one side inside the internal toothed ring (3). Two U-shaped connecting frames (4) are symmetrically arranged on both sides of the outer end of the first fixed protective ring (2). The inner end of the U-shaped connecting frame (4) is in sliding contact with the first fixed protective ring (2). One end of the two U-shaped connecting frames (4) is fixedly connected to both sides of the outer end of the inner toothed ring (3). An L-shaped movable frame (5) is fixedly provided at the other end of each of the two U-shaped connecting frames (4). The L-shaped movable frame (5) is located at the bottom of the first fixed protective ring (2). The vertical part and the horizontal part of the L-shaped movable frame (5) are respectively fixedly provided with a first cleaning scraper (6) and a second cleaning scraper (7). The first cleaning scraper (6) is located at the outer end of the navigation mark body (1) located below the water surface, and the second cleaning scraper (7) is located at the bottom end of the navigation mark body (1) located below the water surface.

2. The navigation mark anti-marine biofouling device according to claim 1, characterized in that: The outer end of the main body (1) of the navigation mark is fixedly provided with a second fixed protective ring (8), which is located on the top of the inner toothed ring (3).

3. The navigation mark anti-marine biofouling device according to claim 2, characterized in that: The power assembly includes a motor (9) fixedly mounted on the top of the second fixed protective ring (8). The motor (9) is located on one side of the beacon body (1). The output shaft of the motor (9) is fixedly equipped with a rotating rod (10). The bottom end of the rotating rod (10) passes through the second fixed protective ring (8) and is rotatably connected to the top of the internal gear ring (3) through a bearing. The rotating rod (10) is rotatably connected to the second fixed protective ring (8) through a bearing. The outer end of the rotating rod (10) is fixedly equipped with a gear (11). The gear (11) is located at the inner end of the internal gear ring (3) and meshes with the internal gear ring (3).

4. The navigation mark anti-marine biofouling device according to claim 3, characterized in that: The second fixed protective ring (8) is fixedly provided with a protective frame (12) at its top end, and the motor (9) is located inside the protective frame (12).

5. The anti-marine biofouling device for navigation marks according to claim 1, characterized in that: A connecting ring (13) is fixed between one end of the horizontal part of the two L-shaped movable frames (5). The connecting ring (13) is located at the bottom of the beacon body (1) and is located outside the counterweight balance structure at the bottom of the beacon body (1).

6. The navigation mark anti-marine biofouling device according to claim 1, characterized in that: The first fixed protective ring (2) has an annular groove (14) at its top end, and an annular slip ring (15) is provided inside the annular groove (14). The top end of the annular slip ring (15) is fixedly connected to the bottom end of the internal toothed ring (3).

7. The navigation mark anti-marine biofouling device according to claim 3, characterized in that: The top of the main body (1) of the navigation mark is fixedly equipped with a controller (16), and the motor (9) is connected to the output end of the controller (16).

8. A navigational aid anti-marine biofouling device according to claim 7, characterized in that: The top of the main body (1) of the navigation beacon is fixed with two solar power generation systems (17) and a storage battery (18). The storage battery (18) stores the electricity generated by the two solar power generation systems (17) and provides power to the motor (9) and the controller (16).