Anti-swing navigation mark
By installing an anti-sway component below the buoy's counterweight, and utilizing the pressure difference created by the cross-sectional shapes of the upper and lower surfaces, the buoy's swaying problem under wave conditions is solved, thus improving the buoy's stability and indicating accuracy.
Patent Information
- Application Number
- CN202520529231.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Existing navigational aids are prone to swaying in rough seas, leading to inaccurate navigational indications.
A sway-resistant navigation beacon is designed by setting an anti-sway component below the beacon's counterweight. The difference in cross-sectional shape between the top and bottom surfaces creates a pressure difference to resist external forces and improve stability.
This improved the stability of navigation marks under wave conditions, ensuring accurate guidance.
Smart Images

Figure CN223778519U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of navigation marks, specifically an anti-sway navigation mark. Background Technology
[0002] Navigational aids, also known as navigational markers, are visual, auditory, and radio navigational aids installed to help ships navigate safely, economically, and conveniently. They use specific marks, lights, sounds, or radio signals to help ships determine their position and course, avoid danger, and navigate safely along channels or predetermined routes. Navigational aids can be used to mark channel boundaries and indicate the centerline, thus guiding ships to navigate in the correct course. They can also be used to indicate dangerous areas, such as to help ships avoid hazards (e.g., bearing marks and emergency wreck markers), or to indicate changes in water depth.
[0003] Navigational buoys are made of chains connected together and float on the water. The floating part of the buoy has a counterweight underneath to stabilize the structure, and the upper part has a frame and indicator lights to serve as a warning. However, during convective weather at sea, there may be large waves, which can cause the buoys to drift erratically or even capsize. Since the waves on the sea surface fluctuate over a large area of water, the buoys along the entire navigation line may become inaccurate when there are waves. Therefore, an anti-swaying buoy is needed to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide an anti-sway navigation beacon that can increase the weight of the beacon according to changes in underwater current velocity, thereby resisting external forces on the beacon. Furthermore, since the top and bottom surfaces are located underwater, the underwater current velocity varies greatly, resulting in a better stabilizing effect.
[0005] To achieve the above objectives, this utility model employs the following technical solution:
[0006] An anti-sway beacon includes a beacon body and an anti-sway component disposed below a counterweight.
[0007] The anti-sway component includes a connecting seat below the counterweight, a connecting rod connected to the connecting seat, and an anti-sway member disposed below the connecting rod; the anti-sway member includes an upper top surface connected to the connecting rod, a connecting shaft disposed below the upper top surface, and a lower bottom surface disposed below the connecting shaft; the upper top surface and the lower bottom surface have the same cross-sectional shape, the cross-sectional shape is composed of a straight edge and an arc edge, and the straight edge faces the water surface.
[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0009] This application has a simple and practical structure. It increases the ballast mass of the navigation beacon by adjusting the underwater flow velocity, thereby resisting the external forces acting on the beacon. Furthermore, since the top and bottom surfaces are underwater, the underwater flow velocity varies greatly, resulting in a better stabilizing effect. Attached Figure Description
[0010] Appendix Figure 1 This is an overall view of the present invention.
[0011] Appendix Figure 2 This is a view of the anti-sway component in this utility model.
[0012] Appendix Figure 3 This is a view showing the direction of water flow in this utility model.
[0013] The labels shown in the attached diagram:
[0014] 1. Navigation beacon body; 2. Connecting seat; 3. Connecting rod; 4. Top surface; 5. Connecting shaft; 6. Bottom surface. Detailed Implementation
[0015] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.
[0016] The present invention describes an anti-sway navigation beacon, the main structure of which includes a navigation beacon body 1 and an anti-sway component disposed below a counterweight;
[0017] The navigation beacon body 1 includes a navigation light, a mounting bracket, a buoy body, and a counterweight block disposed below the buoy body. The anti-sway component includes a connecting seat 2 below the counterweight block, a connecting rod 3 connected to the connecting seat 2, and an anti-sway component disposed below the connecting rod 3;
[0018] As per the instruction manual Figures 1-3 As shown, the anti-sway component includes an upper top surface 4 connected to the connecting rod 3, a connecting shaft 5 disposed below the upper top surface 4, and a lower bottom surface 6 disposed below the connecting shaft 5;
[0019] When a navigation buoy encounters waves on the sea surface, it will rise and fall with the water's surface. When the buoy rises, the underwater anti-sway component also rises with it. At this time, the top surface 4 of the anti-sway component creates resistance as it floats above the water surface. Similarly, when the buoy rises and sinks, the bottom surface or bottom surface 6 of the top surface 4 of the anti-sway component creates resistance, preventing the buoy from sinking and thus reducing its floating range at sea. The above describes the resistance formed by the shapes of the top surface 4 and the bottom surface 6. To further improve the stability of the navigation buoy, the cross-sectional shapes of the top surface 4 and the bottom surface 6 are further improved: the cross-sectional shapes of the top surface 4 and the bottom surface 6 are the same, consisting of straight edges and curved edges, with the straight edges facing the water surface.
[0020] When there are waves on the sea surface, the underwater current speed will increase. When the water flows over the upper surface 4 and the lower surface 6, due to the cross-sectional shape of the upper surface 4 and the lower surface 6, a difference in flow velocity will be created between the straight side and the curved side. The flow velocity on the curved side is greater than that on the straight side. Since the straight side faces the water surface, a pressure difference is formed. According to Bernoulli's principle, the faster the flow, the lower the pressure, and the slower the flow, the higher the pressure. The pressure difference between the two forms a downward thrust, thereby improving the stability of the navigation mark on the water surface.
[0021] Compared to increasing the ballast below the buoy, the method of this application improves the stability of the navigation mark. However, increasing the ballast cannot be adjusted according to the water flow velocity, and simply increasing the ballast can easily reduce the buoyancy of the navigation mark and further increase instability. Compared with the above method, this application can increase the mass of the ballast of the navigation mark according to the change of underwater flow velocity, thereby resisting the external forces on the navigation mark. Furthermore, since the upper surface 4 and the lower surface 6 are located underwater, the underwater flow velocity changes greatly, resulting in a better stabilizing effect.
Claims
1. A sway-resistant navigational beacon, characterized in that: Includes the buoy body (1) and an anti-sway component located below the counterweight; The anti-sway assembly includes a connecting seat (2) below the counterweight, a connecting rod (3) connected to the connecting seat (2), and an anti-sway component disposed below the connecting rod (3); The anti-sway component includes an upper top surface (4) connected to the connecting rod (3), a connecting shaft (5) disposed below the upper top surface (4), and a lower bottom surface (6) disposed below the connecting shaft (5); The top surface (4) and the bottom surface (6) have the same cross-sectional shape, which consists of straight sides and curved sides, with the straight sides facing the water surface.