A sea mark

By employing a layered load-bearing design with a cylindrical buoy body and a metal frame structure, combined with movable counterweights and a hydraulic drive system, the problems of redundancy and capsizing risk in traditional marine navigation aids have been solved, achieving the integration of multi-functional sensors and improved structural stability.

CN224528927UActive Publication Date: 2026-07-21GUANGDONG LANKUN MARINE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG LANKUN MARINE TECH CO LTD
Filing Date
2025-09-15
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The traditional layout of maritime navigation marks is unreasonable, resulting in overall structural redundancy and insufficient connection strength, making it difficult to integrate new sensors or communication modules, and increasing the risk of capsizing in severe sea conditions.

Method used

It adopts a layered load-bearing structure consisting of a cylindrical buoy body, a metal frame structure and a tail tube. Combined with a through-type data acquisition equipment cabin, a movable counterweight and a hydraulic drive system, it achieves decoupling of equipment load and buoyancy and mooring force and dynamic center of gravity adjustment through flange connection and distributed connection design.

Benefits of technology

The integration of multiple sensors has extended the structural lifespan, reduced the risk of overturning, and improved the rationality and stability of the structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an offshore navigation mark, including buoy main part, metal frame structure and tail cylinder, buoy main part is cylindrical tank body, and its top fixedly connected metal frame structure, metal frame structure adopts the lattice design, and the top is equipped with solar panel frame and navigation mark lamp, and the inside of buoy main part is equipped with at least two and is arranged in the upper and lower through -going accommodating cavity, and the fixed welding of each accommodating cavity has data acquisition equipment cabin, and the bottom of data acquisition equipment cabin is more than the bottom surface of buoy main part, and the bottom welding of buoy main part tail cylinder, and the tail cylinder end is connected through the flange bolt counterweight ring, forms the layered bearing structure from top to bottom. The utility model discloses utilize cylindrical buoy main part to provide even force shell, and the standardized interface in data acquisition equipment cabin supports multi -type sensor plug and play. The lattice design of metal frame evenly transmits top equipment load to main base, prolongs the structure life, and improves structural layout rationality.
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Description

Technical Field

[0001] This utility model relates to the field of navigational auxiliary equipment technology, specifically to a maritime navigation mark. Background Technology

[0002] Traditional maritime buoys primarily serve basic navigational functions such as channel marking and hazard warning. Their structural design typically focuses on a single buoyancy support, lacking multi-functional expansion capabilities. In existing technologies, the equipment compartment, energy module, and ballast system of the buoy are mostly arranged in a separate layout, resulting in overall structural redundancy and insufficient connection strength. Limited equipment installation space makes it difficult to integrate new sensors or communication modules; furthermore, the rigid connection between the mooring components and the buoy body is prone to stress concentration due to wave impact, accelerating metal fatigue. Especially in severe sea conditions, fixed ballast systems struggle to dynamically adjust the center of gravity, increasing the risk of capsizing. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a maritime navigation mark that solves the problems of unreasonable structural layout and redundant overall structure of the maritime navigation mark in the traditional technology.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0005] This utility model provides a marine navigation mark, including a buoy body, a metal frame structure and a tail tube;

[0006] The buoy body is a cylindrical tank, with a metal frame structure fixedly connected to its top; the metal frame structure adopts a lattice design, and a solar panel frame and navigation light are installed on the top.

[0007] The buoy body has at least two vertically connected cavities inside, and a data acquisition equipment compartment is fixedly welded into each cavity. The bottom of the data acquisition equipment compartment extends beyond the bottom surface of the buoy body, and a tail tube is welded to the bottom of the buoy body.

[0008] The tail cylinder end is connected to a counterweight ring via flange bolts, forming a layered load-bearing structure from top to bottom.

[0009] In some embodiments, the connection between the metal frame structure and the buoy body is provided with an annular base, and the edge of the base is evenly distributed with 8 sets of welding points and 4 sets of bolt fasteners.

[0010] In some embodiments, the data acquisition equipment compartment adopts a through-type compartment structure, the inner wall of the data acquisition equipment compartment is welded to the buoy body to form a sealed cavity, the upper and lower ends of the sealed cavity are open, and a sensor interface is opened at the bottom of the sealed cavity.

[0011] In some embodiments, the counterweight ring is an annular cast iron component, which is circumferentially fixed to the tail cylinder by bolts through a flange, and the contact surface of the flange is provided with a waterproof sealant layer.

[0012] In some embodiments, the top of the buoy body is also provided with a battery compartment, which is bolted to the outer wall of the buoy body via an angle steel bracket, and the bottom of the angle steel bracket is provided with a shock-absorbing rubber pad.

[0013] In some embodiments, a movable counterweight is embedded inside the counterweight ring. The movable counterweight is connected to the inner wall of the counterweight ring via a slide rail mechanism. A hydraulic drive unit is provided at the end of the slide rail mechanism, and the hydraulic drive unit is used to drive the movable counterweight to move along the slide rail mechanism.

[0014] In some embodiments, the slide rail mechanism is arranged in a cross shape, with four sets of the slide rail mechanism converging at the geometric center of the counterweight ring, and the surface of the slide rail mechanism is provided with a galvanized layer.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] The cylindrical buoy body provides a uniformly stressed shell, with two through-hole cavities on its internal side, each housing a data acquisition equipment compartment. While ensuring airtightness, the standardized interfaces within the data acquisition equipment compartment support plug-and-play functionality for various types of sensors. The lattice design of the metal frame evenly distributes the load of the top equipment (solar panels, navigation lights) to the main body base. The distributed connection of 8 sets of welds and 4 sets of bolts avoids localized stress concentration, extends structural lifespan, and improves the rationality of the structural layout.

[0017] The flange connection between the tailstock and the counterweight ring forms a rigid mooring node, while the cross-rail layout of the movable counterweight allows it to move along four degrees of freedom. When the sensor detects an abnormal buoy tilt angle, the hydraulic drive unit pushes the counterweight to slide in the opposite direction, instantly counteracting the wave torque and significantly reducing the risk of capsizing.

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a marine navigation mark provided in an embodiment of this application.

[0021] Figure 2A front view of a marine navigation mark provided for an embodiment of this application. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on 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.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may not be directly connected to the other devices but may have an intermediary device.

[0025] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0026] Reference Figures 1 to 2 This embodiment proposes a marine navigation mark, including a buoy body 10, a metal frame structure 20, and a tail tube 30;

[0027] The buoy body 10 uses a cylindrical tank with a diameter of 2.4m to provide the main buoyancy. Its top is fixedly connected to the metal frame structure 20 through an annular base 23. Preferably, the fixed connection is made by a combination of welding and bolts. The metal frame structure 20 adopts a lattice design and is equipped with a solar panel frame 21 and a navigation light 22 on the top.

[0028] The buoy body 10 has at least two vertically penetrating cavities inside. These two cavities are distributed at both ends of the diameter of the buoy body 10, located on both sides of the buoy body 10. A data acquisition equipment compartment 40 is fixedly welded into each cavity. The bottom of the data acquisition equipment compartment 40 extends beyond the bottom surface of the buoy body 10 to facilitate direct contact of specific sensors with seawater. A tail tube 30 is welded to the bottom of the buoy body 10 to transmit mooring force.

[0029] The tail cylinder 30 is bolted to the counterweight ring 50 via flange 51, forming a layered load-bearing structure from top to bottom.

[0030] The above structural layout forms a vertical force chain, and the layered structure decouples the equipment load, buoyancy and anchoring force to avoid mutual interference.

[0031] Among them, navigation light 22 is a deep-sea buoy navigation light, mainly used to guide ships to navigate safely, and to mark the boundaries of the waterway, dangerous areas and the location of obstacles through signals such as light color and flashing frequency. Its bottom is connected to the top of the metal frame structure 20 by bolts.

[0032] It also includes a special marker, primarily used to indicate specific waters or features. Its top marker features a single yellow X-shaped structure, illuminated by Morse code. The marker flashes yellow rhythmically, and some sections may also be painted with lane-separating arrows or offshore work area markings to enhance visibility. This marker is mainly used to indicate key areas such as the center of a channel, entrances, ports, estuaries, or the first glimpse of land, helping vessels identify safe waterways. The special marker is fixed to the very top of the metal frame structure 20 via a connecting rod.

[0033] Preferably, an annular base 23 is provided at the connection between the metal frame structure 20 and the buoy body 10. Eight sets of welding points and four sets of bolt fasteners are evenly distributed on the edge of the base. The eight sets of welding points evenly distributed on the edge of the annular base 23 bear the main shear force, and the four sets of bolt fasteners provide pre-tightening force to compensate for welding thermal deformation. This distributed connection makes the impact force of the waves evenly distributed to the shell of the buoy body 10, reducing weld fatigue cracking.

[0034] Preferably, the data acquisition equipment compartment 40 adopts a through-type compartment structure. The inner wall of the data acquisition equipment compartment 40 is welded to the buoy body 10 to form a sealed cavity. The upper and lower ends of the sealed cavity are open, and a sensor interface is opened at the bottom of the sealed cavity. The sensor interface is standardized (such as RS485 interface) to support plug-and-play devices such as CTD and ADCP. The through-type compartment design allows the sensor to directly contact the water body, avoiding measurement delay.

[0035] For example, the data acquisition equipment compartment 40 is equipped with a CTD (Conductivity, Temperature, Depth) instrument, an ADCP (Acoustic Doppler Current Profiler), a dissolved oxygen sensor, etc., for real-time acquisition of multi-dimensional marine environmental parameters such as hydrology, meteorology, and ecology; each sensor is connected to the data acquisition module inside the data acquisition equipment compartment 40 through a standardized interface to ensure signal compatibility.

[0036] In one implementation, the counterweight ring 50 is a ring-shaped cast iron component, which is circumferentially fixed to the tail cylinder 30 by bolts through the flange 51. The contact surface of the flange 51 is provided with a waterproof sealant layer. The pre-tightening force of 12 sets of bolts, together with the waterproof sealant layer, forms a double seal. The high density of the cast iron material enhances the resistance to overturning torque. The flange contact surface is machined to ensure that the flatness is ≤0.1mm.

[0037] In one implementation, the top of the buoy body 10 is also equipped with a battery compartment 60. The battery compartment 60 provides continuous power to the various subsystems of the buoy (sensors, communication equipment, data processing modules, etc.) and uses a lithium-ion battery pack. The battery compartment 60 is bolted to the outer wall of the buoy body 10 via an angle steel bracket 61. The bottom of the angle steel bracket 61 is equipped with a shock-absorbing rubber pad with a Shore hardness of 60±5, which is used to absorb low-frequency vibrations, prevent the lithium-ion battery pack from breaking due to resonance, and ensure structural stability.

[0038] In one embodiment, a movable counterweight is embedded inside the counterweight ring 50. The movable counterweight is connected to the inner wall of the counterweight ring 50 through a slide rail mechanism. A hydraulic drive unit is provided at the end of the slide rail mechanism. The hydraulic drive unit is used to drive the movable counterweight to move along the slide rail mechanism.

[0039] The slide rail mechanism is arranged in a cross shape, with four sets of slide rail mechanisms converging at the geometric center of the counterweight ring 50. The surface of the slide rail mechanism is coated with a galvanized layer.

[0040] It should be noted that four sets of galvanized slide rail mechanisms are embedded inside the housing of the counterweight ring 50. These four sets of slide rail mechanisms are arranged in a cross shape and converge at the geometric center of the counterweight ring 50. A hydraulic drive unit moves the counterweight along the slide rails (stroke ±15cm) based on the tilt sensor signal. For example, when wave impact causes a rightward tilt, the counterweight moves to the left, generating a counter-torque that restores the buoy's balance.

[0041] In summary, compared with the prior art, the above embodiments have at least the following technical advantages:

[0042] The cylindrical buoy body 10 provides a uniformly stressed shell, with two through-hole cavities on its internal side, each housing a data acquisition equipment compartment 40. While ensuring airtightness, the standardized interface within the data acquisition equipment compartment 40 supports plug-and-play functionality for various types of sensors. The lattice design of the metal frame evenly distributes the load of the top equipment (solar panel, navigation light 22) to the main body base. The distributed connection of 8 sets of welds and 4 sets of bolts avoids localized stress concentration and extends the structural lifespan.

[0043] The flange connection between the tailstock 30 and the counterweight ring 50 forms a rigid mooring node, and the cross-rail layout of the movable counterweight allows the counterweight to move along four degrees of freedom. When the sensor detects an abnormal buoy tilt angle, the hydraulic drive unit pushes the counterweight to slide in the opposite direction, instantly counteracting the wave torque and significantly reducing the risk of capsizing.

[0044] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A maritime navigation mark, characterized in that, Includes the buoy body, metal frame structure, and tail tube; The buoy body is a cylindrical tank, with a metal frame structure fixedly connected to its top; the metal frame structure adopts a lattice design, and a solar panel frame and navigation light are installed on the top. The buoy body has at least two vertically connected cavities inside, and a data acquisition equipment compartment is fixedly welded into each cavity. The bottom of the data acquisition equipment compartment extends beyond the bottom surface of the buoy body, and a tail tube is welded to the bottom of the buoy body. The tail cylinder end is connected to a counterweight ring via flange bolts, forming a layered load-bearing structure from top to bottom.

2. A maritime navigation mark as described in claim 1, characterized in that, The metal frame structure is connected to the buoy body with an annular base, and the base edge is evenly distributed with 8 sets of welding points and 4 sets of bolt fasteners.

3. A maritime navigation mark as described in claim 1, characterized in that, The data acquisition equipment cabin adopts a through-type cabin structure. The inner wall of the data acquisition equipment cabin is welded to the buoy body to form a sealed cavity. The upper and lower ends of the sealed cavity are open, and a sensor interface is opened at the bottom of the sealed cavity.

4. A maritime navigation mark as described in claim 1, characterized in that, The counterweight ring is a ring-shaped cast iron component, which is circumferentially fixed to the tail cylinder by bolts through a flange. The contact surface of the flange is provided with a waterproof sealant layer.

5. A maritime navigation mark as described in claim 1, characterized in that, The buoy body is also equipped with a battery compartment at the top. The battery compartment is bolted to the outer wall of the buoy body via an angle steel bracket. The bottom of the angle steel bracket is equipped with a shock-absorbing rubber pad.

6. A maritime navigation mark as described in claim 4, characterized in that, The counterweight ring has a movable counterweight embedded inside. The movable counterweight is connected to the inner wall of the counterweight ring through a slide rail mechanism. The slide rail mechanism is equipped with a hydraulic drive unit at its end, which is used to drive the movable counterweight to move along the slide rail mechanism.

7. A maritime navigation mark as described in claim 6, characterized in that, The slide rail mechanism is arranged in a cross shape, with the four sets of slide rail mechanisms converging at the geometric center of the counterweight ring, and the surface of the slide rail mechanism is provided with a galvanized layer.