Ship mooring navigation buoy with self-stabilizing function suitable for severe sea conditions

By using a sliding rod reinforcement and a rolling friction anchor chain design, combined with an annular airbag anti-tipping mechanism, the stability and durability of the navigation buoy under harsh sea conditions were solved, achieving self-stabilization and wind and wave resistance capabilities for the buoy.

CN120942485AInactive Publication Date: 2025-11-14TAIZHOU JIANGYAN YUANHANG SHIP MACHINERY MFG
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Patent Information

Application Number
CN202511496372.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-20
Publication Date
2025-11-14
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing navigation buoys are prone to capsizing and displacement in rough sea conditions, and their anchor chains are easily worn, affecting the continuity of data acquisition and the durability of mooring systems.

Method used

The design incorporates sliding rod reinforcement and rolling friction anchor chain, combined with an annular airbag anti-tipping mechanism, to achieve self-stabilization and resistance to wind and waves for the buoy.

Benefits of technology

This improves the stability of buoys in harsh sea conditions and the durability of anchor chains, ensuring the continuity of data acquisition and the safety of the mooring system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of buoys, in particular to a ship mooring navigation buoy with a self-stabilizing function suitable for severe sea conditions, which comprises a floating body, a mast is fixedly mounted at the top of the floating body, an observation device in the prior art is assembled at the top of the mast, and the observation device is used for monitoring weather and navigating and positioning; the device further comprises an anchor chain and a balancing weight, the bottom of the floating body is fixedly connected with a fixing plate, the bottom of the fixing plate is fixedly connected with the anchor chain, an installation block is fixedly installed in the balancing weight, an installation plate is fixedly connected in the installation block, and a sliding rod is assembled on the installation plate in a sliding mode. By arranging a triggering mechanism that the sliding rod is matched with the reinforcing piece, under the severe sea condition, the floating body is pulled upwards to trigger the sliding rod linkage mechanism, the reinforcing nail is automatically driven to be obliquely inserted into the seabed, meanwhile, the jacking block is matched to trigger reinforcing in advance when the balancing weight touches the bottom, sinking, namely anchoring is achieved, and the anti-sliding and anti-pulling capacity of the buoy is effectively improved.
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Description

Technical Field

[0001] This invention relates to the field of buoy technology, and more specifically to a ship mooring and navigation buoy with self-stabilizing function suitable for harsh sea conditions. Background Technology

[0002] Ship mooring and navigation buoys, as crucial unmanned observation and navigation aids in the marine environment, are widely used in waterway marking, marine environmental monitoring, disaster early warning, and national defense security. Their typical structure consists of a float, mast, mooring, and various onboard sensors, capable of continuously collecting multi-dimensional data such as meteorological, hydrological, and water quality data over long periods and transmitting it back via satellite or terrestrial communication systems. In harsh sea conditions, the buoy's stability directly affects the continuity of data acquisition and the reliability of navigation signals; therefore, its resistance to wind and waves and its self-stabilizing capabilities are core technical indicators for ensuring the normal operation of the system.

[0003] Most current mainstream navigation buoys adopt a single-point mooring structure, which connects the surface float to the seabed counterweight via a chain, relying on the tension between the weight of the counterweight and the buoyancy of the float to achieve basic positioning. However, this structure has significant shortcomings in dealing with severe surges: on the one hand, single-point traction lacks redundant stabilization mechanisms, making the buoy susceptible to capsizing or displacement due to wave impacts, which may lead to navigation signal deviation or failure over time; on the other hand, traditional chains are composed of metal links connected in series, and continuous friction and collision between the links during buoy swaying result in a lack of buffer energy absorption design and a high risk of metal fatigue and fracture, seriously affecting the durability and safety of the mooring system. Therefore, we propose a ship mooring navigation buoy with self-stabilizing function suitable for harsh sea conditions to improve the dynamic stability and structural reliability of the buoy at sea. Summary of the Invention

[0004] To overcome the shortcomings of the existing technology, a self-stabilizing ship mooring and navigation buoy suitable for harsh sea conditions is provided.

[0005] The technical solution of this invention is: a self-stabilizing ship mooring and navigation buoy suitable for rough seas, comprising a float with a mast fixedly mounted on its top, wherein the top of the mast is equipped with existing observation equipment for monitoring weather and navigation positioning; further comprising an anchor chain and a counterweight; a fixing plate is fixedly connected to the bottom of the float, and an anchor chain is fixedly connected to the bottom of the fixing plate; an installation block is fixedly installed inside the counterweight, and an installation plate is fixedly connected inside the installation block; a sliding rod is slidably mounted on the installation plate, the sliding rod being located inside the installation block and extending from the top of the counterweight; the end of the anchor chain away from the float is connected to the sliding rod; a protrusion is fixedly provided at the lower end of the sliding rod; multiple installation chambers are formed in a cross shape within the installation block, and useful... A reinforcement component for reinforcing a counterweight block; the reinforcement component includes a rotating rod, a contact block, and a reinforcing nail. The rotating rod is rotatably connected to the mounting chamber of the mounting block via a rotating shaft. A contact block is fixedly connected to the rotating shaft of the rotating rod. Multiple contact blocks are circumferentially distributed around the periphery of a sliding rod. The contact blocks contact the protrusions of the sliding rod. A connecting groove is provided on the rotating rod. A guide groove is provided at the bottom of each mounting chamber of the mounting block. A reinforcing nail is slidably disposed in the guide groove of the mounting block. A connecting shaft is fixedly connected to the reinforcing nail away from its tip. The connecting shaft of the reinforcing nail is located within the connecting groove of the rotating rod. In use, the counterweight block with the anchor chain attached is first deployed into the target sea area until the counterweight block sinks to the seabed and initially restrains the buoy on the sea surface through the anchor chain. Under normal sea conditions, the counterweight block can stably maintain the stability of the buoy.

[0006] Furthermore, it is particularly preferred that the anchor chain consists of chain links and chain blocks, with openings at both ends of the chain blocks. The chain blocks are alternately connected to the chain links through the openings, and smooth steel balls are slidably disposed within the openings of the chain blocks, with the steel balls and chain links in rolling contact.

[0007] Furthermore, it is particularly preferred that the reinforcing nail has multiple through holes spaced apart, and that the outer walls of the reinforcing nail have grooves spaced apart on both sides.

[0008] Furthermore, it is particularly preferred that a lifting block is slidably installed on the bottom outer side of the mounting block corresponding to the sliding rod, and the lifting block slides through the mounting block and comes into contact with the protrusion.

[0009] Furthermore, it is particularly preferred that the outer periphery of the float be provided with an anti-tipping mechanism, which is used to improve the float's resistance to tipping on the sea surface. The anti-tipping mechanism includes a mounting frame that is circumferentially fixed to the outer periphery of the float. An annular airbag is fixedly installed on the mounting frame. The annular airbag has elastic expansion characteristics. The annular airbag is arranged in a ring shape around the outer periphery of the float. The annular airbag is used to increase the stability of the float. Multiple partition plates are fixedly arranged at intervals on the annular airbag. The partition plates evenly divide the annular airbag into independent air chambers.

[0010] Furthermore, it is particularly preferred that the float is provided with an inflation component for inflating the annular airbag. The inflation component includes multiple piston cylinders that are inclinedly embedded on the outside of the float. The piston cylinders are circumferentially distributed around the periphery of the float and correspond to each independent air chamber on the annular airbag. The piston cylinders are connected to the corresponding independent air chambers on the annular airbag through hoses. A sliding block is slidably installed inside the piston cylinder. The piston cylinder and the sliding block constitute a piston structure. The annular airbag and the piston cylinder are filled with gas.

[0011] Furthermore, it is particularly preferred that a storage cavity is provided in the lower part of the mast near the float, the storage cavity of the mast is convenient for flexible storage of maintenance tools, and an opening door is rotatably installed at one side opening of the storage cavity of the mast, the opening door is bolted to close the storage cavity of the mast.

[0012] Furthermore, it is particularly preferred that a sealing gasket be provided at the edge of the opening and closing door to fit the opening of the storage cavity on the mast, the sealing gasket being used to improve the sealing performance of the opening and closing door on the mast.

[0013] Beneficial effects: 1. This invention sets up a sliding rod and a triggering mechanism for the reinforcement components. In severe sea conditions, the buoy pulls up to trigger the sliding rod linkage mechanism, which automatically drives the reinforcement nail to be inserted obliquely into the seabed. At the same time, when the counterweight hits the bottom, the lifting block triggers the reinforcement in advance, so as to achieve anchoring as soon as it sinks, which effectively improves the buoy's anti-slip and anti-pull-out capabilities.

[0014] 2. The anchor chain of the present invention adopts an alternating series structure of chain links and chain blocks, and a smooth steel ball is embedded in the opening of the chain link, so that the contact surface between the chain link and the chain block is upgraded from traditional sliding friction to rolling friction, reducing the coefficient of friction and mechanical wear, and can still maintain good mechanical properties, especially under long-term dynamic tension and torsion conditions.

[0015] 3. The present invention can also set an annular elastic airbag around the float. When the tilt angle of the float exceeds the preset value, the sliding block is subjected to gravity to press the gas into the tilting side air chamber, causing the airbag on that side to expand and increase buoyancy, automatically generating a righting torque, effectively preventing the float from tilting or even overturning, and improving the overall anti-overturning ability of the buoy. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a diagram showing the connection relationships of components such as the float, anchor chain, counterweight, and mounting plate of the present invention.

[0018] Figure 3 This is a schematic diagram of the counterweight, mounting block, sliding rod, and mounting plate of the present invention.

[0019] Figure 4 This is a schematic diagram illustrating the specific component relationships of the sliding rod, protrusion, and reinforcement parts of the present invention.

[0020] Figure 5 This is a three-dimensional structural diagram showing the connection relationship between the rotating rod, contact block, and reinforcing nail of the present invention.

[0021] Figure 6 This is a diagram showing the connection relationship between the chain links, chain blocks, and steel balls of the present invention.

[0022] Figure 7 This is a schematic diagram of the components of the present invention, including the float, mounting frame, annular airbag, and piston cylinder.

[0023] Figure 8 This is a diagram showing the connection relationship between the annular airbag, piston cylinder, sliding block, and hose of the present invention.

[0024] Figure 9 This is a three-dimensional structural diagram of the float, mast, and opening / closing door of the present invention.

[0025] In the diagram: 1. Float, 2. Mast, 21. Observation equipment, 3. Anchor chain, 301. Chain link, 302. Chain block, 303. Steel ball, 31. Fixing plate, 4. Counterweight, 41. Mounting block, 411. Guide groove, 5. Sliding rod, 51. Mounting plate, 52. Protrusion, 6. Reinforcing component, 61. Rotating rod, 611. Connecting groove, 62. Rotating shaft, 63. Contact block, 64. Reinforcing nail, 641. Through port, 642. Groove, 65. Connecting shaft, 7. Lifting block, 8. Anti-tipping mechanism, 81. Mounting frame, 82. Annular airbag, 83. Isolation plate, 9. Inflatable component, 91. Piston cylinder, 92. Sliding block, 93. Hose, 10. Opening door, 101. Storage cavity, 11. Sealing gasket. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0027] A self-stabilizing ship mooring and navigation buoy suitable for harsh sea conditions, such as Figures 1-5As shown, the system includes a float 1 with a mast 2 fixedly mounted on its top. The top of the mast 2 is equipped with a prior art observation device 21, used for weather monitoring and navigation positioning. It also includes an anchor chain 3 and a counterweight 4. A fixing plate 31 is fixedly connected to the bottom of the float 1, and the anchor chain 3 is fixedly connected to the bottom of the fixing plate 31. An installation block 41 is fixedly installed inside the counterweight 4, and an installation plate 51 is fixedly connected inside the installation block 41. A sliding rod 5 is slidably mounted on the installation plate 51, located inside the installation block 41 and extending from the top of the counterweight 4. The end of the anchor chain 3 furthest from the float 1 and the sliding rod 5 are connected to the counterweight 4. The sliding rod 5 is connected to the sliding rod 5. A protrusion 52 is fixedly provided at the lower end of the sliding rod 5. Multiple mounting chambers are opened in a cross shape inside the mounting block 41. Reinforcing parts 6 for reinforcing the counterweight block 4 are provided in the mounting chambers of the mounting block 41. The reinforcing parts 6 include a rotating rod 61, a contact block 63 and a reinforcing nail 64. The rotating rod 61 is rotatably connected to the mounting chamber of the mounting block 41 through a rotating shaft 62. A contact block 63 is fixedly connected to the rotating shaft 62 of the rotating rod 61. Multiple contact blocks 63 are circumferentially distributed around the sliding rod 5. The contact blocks 63 contact the protrusion 52 of the sliding rod 5. The rotating rod 61 is connected to the protrusion 52 of the sliding rod 5. The mounting block 41 has a connecting groove 611, and each mounting chamber of the mounting block 41 has a guide groove 411 at its bottom. A reinforcing nail 64 is slidably installed in the guide groove 411 of the mounting block 41. A connecting shaft 65 is fixedly connected to the reinforcing nail 64 away from its tip. The connecting shaft 65 of the reinforcing nail 64 is located in the connecting groove 611 of the rotating rod 61. In use, the counterweight block 4 with the anchor chain 3 is first deployed into the target sea area until the counterweight block 4 sinks to the seabed and initially restrains the float 1 on the sea surface through the anchor chain 3. Under normal sea conditions, the counterweight block 4 can stably maintain the stability of the buoy. When encountering severe sea conditions, The float 1 will fluctuate violently with the waves on the sea surface and pull the sliding rod 5 upward. The sliding rod 5 will move upward within the counterweight block 4. At this time, the sliding rod 5 will press the contact block 63 upward through the protrusion 52, causing the contact block 63 to rotate around the rotating shaft 62 as the rotation center, driving the rotating rod 61 to rotate. At this time, the connecting groove 611 on the rotating rod 61 presses on the connecting shaft 65 of the reinforcing nail 64, causing the reinforcing nail 64 to be inserted into the soil layer of the seabed at an angle along the guide groove 411 at the bottom of the mounting block 41. This enhances the anti-slip and anti-pull-out performance of the counterweight block 4 on the seabed and improves the buoy system's ability to maintain its position in harsh sea conditions.

[0028] like Figure 2 and Figure 6 As shown, the anchor chain 3 consists of chain links 301 and chain blocks 302. The chain blocks 302 have openings at both ends. The chain blocks 302 are alternately connected to the chain links 301 through the openings. Smooth steel balls 303 are slidably arranged in the openings of the chain blocks 302. The steel balls 303 and the chain links 301 roll into contact, so that the chain links 301 and the chain blocks 302 replace sliding friction with rolling friction. This can reduce the coefficient of friction and wear of the chain links 301 and the chain blocks 302, and improve the service life of the anchor chain 3.

[0029] like Figure 5 As shown, the reinforcing nail 64 has multiple through holes 641 spaced apart, and the outer walls of the reinforcing nail 64 have grooves 642 spaced apart. The through holes 641 and grooves 642 on the reinforcing nail 64 can increase the contact area and frictional resistance, and further improve the pull-out and shear resistance of the reinforcing nail 64 in the seabed soil.

[0030] When deploying this navigation buoy, the counterweight block 4, secured with anchor chain 3, is first released into the target sea area. Under gravity, the counterweight block 4 will sink smoothly to the seabed. The counterweight block 4 provides initial mooring force to the buoy 1 on the sea surface through the anchor chain 3, enabling the buoy 1 to float stably at the preset position on the sea surface. This ensures that the observation equipment 21 at the top of the mast 2 can effectively perform meteorological monitoring and navigation tasks under normal sea conditions. During daily ups and downs with the waves, the relative movement and bending between the chain link 301 and the chain block 302 are adapted by the rolling of the steel ball 303, thereby reducing the friction coefficient and wear of the chain link 301 and the chain block 302, and improving the durability and service life of the anchor chain 3 under long-term corrosion and dynamic loads. When the marine environment deteriorates, the increased wind and waves cause the buoy 1 to violently pitch and roll. The offset movement of the buoy 1 is converted into an upward traction force on the sliding rod 5 inside the counterweight block 4 through the anchor chain 3. The sliding rod 5 moves upward with the anchor chain 3 within the mounting block 41. The sliding rod 5 moves, and the protrusion 52 at the lower end of the sliding rod 5 pushes the circumferentially distributed contact blocks 63 upward, forcing the contact blocks 63 to drive the rotating rod 61 to rotate around the rotating shaft 62. This rotational movement causes the connecting groove 611 on the rotating rod 61 to apply pressure to the connecting shaft 65 of the reinforcing nail 64. At this time, the rotating rod 61 will drive the corresponding reinforcing nail 64 to move downward along the guide groove 411 preset at the bottom of the mounting block 41, so that multiple reinforcing nails 64 can be stably inserted into the seabed soil layer. When the reinforcing nail 64 penetrates into the soil layer, the soil in the soil layer will flow into its opening 641 and embed into the groove 642, increasing the contact area between the reinforcing nail 64 and the surrounding soil and the mechanical interlocking force of the interlocking, thus driving multiple anchor piles deep into the seabed for the counterweight block 4, thereby enhancing the counterweight block 4's ability to resist horizontal slippage and vertical pull-out, thereby ensuring that the entire buoy system can still be stably stationed in the predetermined position in the midst of stormy seas, avoiding navigation failure caused by anchor dragging or displacement.

[0031] like Figure 3 and Figure 4 As shown, a lifting block 7 is slidably installed on the bottom outer side of the mounting block 41 corresponding to the sliding rod 5. After the lifting block 7 slides through the mounting block 41, it contacts the protrusion 52 at the end of the sliding rod 5. When the counterweight 4 is dropped to the seabed, the lifting block 7 will be squeezed by the seabed in advance and lift the sliding rod 5 upward, so that the protrusion 52 on the sliding rod 5 will trigger the reinforcement 6 in advance. This allows the reinforcement nail 64 to be directly inserted into the soil layer of the seabed and reinforce the counterweight 4 while the counterweight 4 sinks to the seabed, thereby improving the safety and stability of the buoy.

[0032] like Figure 1 and Figure 7 As shown, an anti-tipping mechanism 8 is provided around the float 1. The anti-tipping mechanism 8 is used to improve the float 1's anti-tipping ability on the sea surface. The anti-tipping mechanism 8 includes a mounting frame 81 that is circumferentially fixed to the periphery of the float 1. An annular airbag 82 is fixedly installed on the mounting frame 81. The annular airbag 82 has elastic expansion characteristics. The annular airbag 82 is arranged in a ring around the periphery of the float 1. The annular airbag 82 is used to increase the stability of the float 1. Multiple isolation plates 83 are fixedly arranged at intervals on the annular airbag 82. The isolation plates 83 evenly divide the annular airbag 82 into independent air chambers. When encountering wave impact, the airbag absorbs kinetic energy through elastic deformation, significantly suppressing the sway amplitude of the float 1, reducing the load fluctuation of the mooring system, and improving the overall stability and equipment safety.

[0033] like Figure 7 and Figure 8 As shown, the float 1 is equipped with an inflation component 9 for inflating the annular airbag 82. The inflation component 9 includes multiple piston cylinders 91 inclinedly embedded on the outside of the float 1. The piston cylinders 91 are circumferentially distributed around the periphery of the float 1 and correspond to each independent air chamber on the annular airbag 82. The piston cylinders 91 are connected to the corresponding independent air chambers on the annular airbag 82 through hoses 93. A sliding block 92 is slidably installed inside the piston cylinder 91. The piston cylinder 91 and the sliding block 92 constitute a piston structure. The annular airbag 82 and the piston cylinders 91 are connected to the annular airbag 82. 1 is filled with gas. When float 1 tilts on the sea surface, once the tilt angle of float 1 is greater than the set tilt angle of piston cylinder 91, the sliding block 92 in piston cylinder 91 will slide outward in the tilt direction. The sliding block 92 can push the gas in piston cylinder 91 into the air chamber on the tilted side of annular airbag 82, causing the air chamber on the tilted side of annular airbag 82 to expand and increase buoyancy, thereby generating a righting torque, inhibiting float 1 from continuing to tilt to the tilted side, and improving the anti-tipping ability of float 1.

[0034] like Figure 1 and Figure 9 As shown, a storage cavity 101 is provided in the lower part of the mast 2 near the float 1. The storage cavity 101 of the mast 2 facilitates flexible storage of maintenance tools. An opening door 10 is rotatably installed at the opening on one side of the storage cavity 101 of the mast 2. The opening door 10 is bolted to close the storage cavity 101 of the mast 2. A sealing gasket 11 is provided at the edge of the opening door 10 to fit the opening of the storage cavity 101 on the mast 2. The sealing gasket 11 is used to improve the sealing of the opening door 10 on the mast 2, prevent seawater from seeping into the storage cavity 101, and ensure that the tools placed inside the storage cavity 101 are dry and safe.

[0035] To ensure that the reinforcing nails 64 inside the mounting block 41 can be effectively inserted into the seabed, a lifting block 7 is added to the bottom of the mounting block 41. When the counterweight block 4 and the mounting block 41 sink to the seabed together under the action of gravity, the lifting block 7 will be the first to touch the seabed soil layer. Under the pressure of the reaction force of the seabed soil, it will slide upward along the mounting groove. The lifting block 7 will directly push the lower end of the sliding rod 5 that it contacts, forcing the sliding rod 5 to move upward in advance inside the counterweight block 4. This causes the protrusion 52 on the sliding rod 5 to rise synchronously and trigger the reinforcement 6 to reinforce the counterweight block 4, driving the reinforcing nails 64 to penetrate into the seabed soil layer in advance, improving deployment efficiency and initial stability. At the same time, in order to improve the anti-overturning ability of the float 1 on the sea surface, the annular airbags 82 equipped around the float 1 serve as the first line of defense. The elastic properties of the annular airbags 82 can effectively absorb and dissipate the impact energy of the waves and suppress the swaying amplitude of the float 1. When large waves cause the float 1 to tilt at an excessive angle, the inflator 9 inside the float 1 will be activated. Due to the unique tilting installation angle, once the float 1 tilts beyond the preset value, the sliding block 92 inside the piston cylinder 91 slides outward under the action of gravity, precisely pressing the gas inside the piston cylinder 91 into the independent air chamber on the sinking side of the annular airbag 82 through the hose 93. This causes the airbag on the sinking and tilting side to expand rapidly, significantly increasing the buoyancy and generating a strong restoring torque, actively and promptly pushing the float 1 back to a balanced posture, thereby effectively preventing further capsizing. At the same time, considering the need for convenient maintenance of the buoy, a storage cavity 101 with a waterproof sealing gasket 11 is also provided at the lower part of the mast 2. The storage cavity 101 is used to store maintenance tools and spare parts for maintaining the buoy, and the opening and closing door 10 on the mast 2 is stabilized by tightening and loosening bolts, so that maintenance personnel can easily maintain the buoy.

[0036] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A ship mooring and navigation buoy with self-stabilizing function suitable for severe sea conditions, comprising a float (1) with a mast (2) fixed on top, wherein the top of the mast (2) is equipped with observation equipment (21); Its features are, It also includes an anchor chain (3) and a counterweight (4). A fixing plate (31) is fixedly provided at the bottom of the float (1). An anchor chain (3) is fixedly connected to the bottom of the fixing plate (31). An installation block (41) is fixedly provided inside the counterweight (4). An installation plate (51) is fixedly connected inside the installation block (41). A sliding rod (5) is slidably mounted on the installation plate (51). The end of the anchor chain (3) away from the float (1) is connected to the sliding rod (5). A protrusion (52) is fixedly provided at the lower end of the sliding rod (5). The mounting block (41) has multiple mounting chambers, and the mounting chambers of the mounting block (41) are provided with reinforcing parts (6). The reinforcement component (6) includes a rotating rod (61) rotatably connected to the mounting chamber of the mounting block (41) via a rotating shaft (62). A contact block (63) is fixedly connected to the rotating shaft (62). The contact block (63) is circumferentially distributed around the sliding rod (5). The contact block (63) contacts the protrusion (52). A connecting groove (611) is provided on the rotating rod (61). A guide groove (411) is provided at the bottom of the mounting chamber of the mounting block (41). A reinforcing nail (64) is slidably provided in the guide groove (411) of the mounting block (41). A connecting shaft (65) is fixedly connected to the reinforcing nail (64) away from its tip. The connecting shaft (65) of the reinforcing nail (64) is located in the connecting groove (611) of the rotating rod (61).

2. The ship mooring and navigation buoy with self-stabilizing function suitable for harsh sea conditions as described in claim 1, characterized in that, The anchor chain (3) is composed of chain links (301) and chain blocks (302). The chain blocks (302) have openings at both ends. The chain blocks (302) are alternately connected to the chain links (301) through the openings. Smooth steel balls (303) are slidably arranged in the openings of the chain blocks (302). The steel balls (303) and the chain links (301) are in rolling contact.

3. The ship mooring and navigation buoy with self-stabilizing function suitable for harsh sea conditions as described in claim 2, characterized in that, The reinforcing nail (64) has multiple through holes (641) spaced apart, and the outer walls of the reinforcing nail (64) have grooves (642) spaced apart on both sides.

4. The ship mooring and navigation buoy with self-stabilizing function suitable for harsh sea conditions as described in claim 3, characterized in that, A lifting block (7) is slidably installed on the bottom outer side of the mounting block (41) at the position corresponding to the sliding rod (5). The lifting block (7) slides through the mounting block (41) and then contacts the protrusion (52).

5. The ship mooring and navigation buoy with self-stabilizing function suitable for harsh sea conditions as described in claim 4, characterized in that, An anti-tipping mechanism (8) is provided on the periphery of the float (1). The anti-tipping mechanism (8) is used to improve the anti-tipping ability of the float (1) on the sea surface. The anti-tipping mechanism (8) includes a mounting frame (81) circumferentially fixed to the periphery of the float (1). An annular airbag (82) is fixedly installed on the mounting frame (81). The annular airbag (82) is arranged in a ring shape on the periphery of the float (1). Multiple isolation plates (83) are fixedly arranged at intervals on the annular airbag (82). The isolation plates (83) evenly divide the annular airbag (82) into independent air chambers.

6. The ship mooring and navigation buoy with self-stabilizing function suitable for harsh sea conditions as described in claim 5, characterized in that, The float (1) is provided with an inflation component (9) for inflating the annular airbag (82). The inflation component (9) includes a plurality of piston cylinders (91) that are inclinedly embedded on the outside of the float (1). The piston cylinders (91) are circumferentially distributed around the periphery of the float (1) and correspond to each independent air chamber on the annular airbag (82). The piston cylinders (91) are connected to the independent air chambers on the corresponding annular airbag (82) through hoses (93). A sliding block (92) is slidably installed inside the piston cylinder (91). The piston cylinder (91) and the sliding block (92) constitute a piston structure. The annular airbag (82) and the piston cylinder (91) are filled with gas.

7. The ship mooring and navigation buoy with self-stabilizing function suitable for harsh sea conditions as described in claim 6, characterized in that, A storage cavity (101) is provided in the lower part of the mast (2) near the float (1). The storage cavity (101) of the mast (2) is used to store maintenance tools. An opening door (10) is rotatably installed at one side of the opening of the storage cavity (101) of the mast (2). The opening door (10) is bolted to close the storage cavity (101) of the mast (2).

8. The ship mooring and navigation buoy with self-stabilizing function suitable for harsh sea conditions as described in claim 7, characterized in that, A sealing gasket (11) is provided at the edge of the opening and closing door (10) to fit the opening of the storage cavity (101) on the mast (2).