Round buoy for channel in inland river mountainous area
By designing circular buoys with automatically adjustable rope and anchor lengths in inland mountain waterways, the problem of buoy submersion or drift caused by water level changes has been solved, achieving stable buoy marking and extending the service life of the buoys.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 丽水市直属公路港航管理中心(丽水市公路水上抢险救援中心)
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-12
AI Technical Summary
In mountainous waterways, traditional buoys are susceptible to rapid water level changes due to factors such as the rainy season and typhoons. Because the anchor chain length is fixed, traditional buoys cannot adapt to water level changes, causing them to be submerged or drift away, lose their marking function, and increase the risk of collisions between ships.
Design a circular buoy for inland mountain waterways, which uses a telescopic device and fiber rope to automatically adjust the length of the anchor. The buoy includes a shell, rotor, shaft and rotor spring, and is connected to the anchor chain by fiber rope to achieve automatic telescopic adjustment to adapt to water level changes.
It achieves stable marking function of buoys when water level changes rapidly, avoids buoy submersion or drift, extends service life and reduces the risk of ship collision.
Smart Images

Figure CN224225246U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of waterway engineering, specifically to a circular buoy for inland mountain waterways. Background Technology
[0002] In inland waterways, traditional buoys are attached to a weight by a fixed-length anchor chain and anchored to the riverbed to mark the waterway and identify navigational hazards. However, in mountainous waterways, water levels can rise or fall dramatically due to factors such as the rainy season and typhoons, with differences in elevation ranging from several meters to tens of meters. Traditional buoys, with their fixed-length anchor chains, cannot adapt to such drastic water level changes: if the water level is too high, and the anchor chain is too short, the buoy will be completely submerged, losing its marking function. Furthermore, due to buoyancy, the buoy may pull the weight off the riverbed via the anchor chain and be swept away by the current. If the anchor chain is too long, at low water levels, the long chain may not adequately restrain the buoy, causing it to drift with the current, losing its accurate function of marking the waterway and increasing the risk of collisions between vessels. Utility Model Content
[0003] To address the aforementioned problems, this application provides a circular buoy for inland mountain waterways that automatically adjusts the length of its anchor rope according to the water level. The specific solution involved is as follows:
[0004] A circular buoy for inland mountain waterways, characterized in that it comprises:
[0005] Buoy hull;
[0006] Telescopic device; and,
[0007] Anchor block;
[0008] The telescopic device is installed and fixed on the inner wall of the buoy shell.
[0009] The telescopic device includes a housing, a rotor, a rotating shaft, and a rotor spring. The rotor is disposed inside the housing and is a disc-shaped structure that rotates around the rotating shaft. A rotor spring is disposed between the rotor and the rotating shaft.
[0010] One end of the fiber rope is coiled and fixed on the rotor;
[0011] Through holes are provided on the outer shell of the buoy and the outer shell of the telescopic device, and the unfixed end of the fiber rope passes through the through holes and is connected to the anchor chain.
[0012] The end of the anchor chain that is not connected to the fiber rope is fixed to the anchor block;
[0013] A hook is provided on the outer shell of the buoy.
[0014] In one specific embodiment of this application, the buoy shell is composed of an upper part and a lower part, which are fixed together by bolts and nuts.
[0015] In one specific embodiment of this application, the telescopic device is fixed to the inner wall of the buoy shell by bolts and nuts.
[0016] In one specific embodiment of this application, a rubber seal is provided outside the through hole on the buoy shell and / or the through hole on the shell of the telescopic device.
[0017] In one specific embodiment of this application, the fiber rope is made of a material selected from polyethylene, aramid, and steel wire rope.
[0018] In one specific embodiment of this application, the material of the buoy shell is selected from high-density polyethylene (HDPE), polypropylene (PP), ABS, nylon (PA), fiberglass (FRP), carbon fiber composite material, polyurethane, stainless steel, and aluminum alloy.
[0019] In one specific embodiment of this application, the diameter of the buoy shell is 0.4 to 1.3 m.
[0020] In one specific embodiment of this application, the weight of the anchor block is 25-100 kg.
[0021] In one specific embodiment of this application, the diameter of the anchor chain is 2.5 to 4 mm.
[0022] The beneficial effects of this application are as follows:
[0023] The circular buoy for inland mountain waterways provided in this application has an internal rotor. The fiber rope wound around the rotor can automatically expand and contract with the water level to adapt to the rapid rise and fall of water levels in mountain waterways, thus ensuring that the buoy does not experience anchor block jumping, submersion, or drifting away. At the same time, the buoy's simple structure, requiring only simple mechanical components to adapt to water level changes, effectively reduces wear on the fiber rope. The expansion joint is installed inside the buoy and has several rubber seals, preventing debris such as tree branches from tangling with the expansion joint in mountain waterways, thereby extending the buoy's service life. Attached Figure Description
[0024] The accompanying drawings are provided to better understand this application and do not constitute an undue limitation thereof. Wherein:
[0025] Figure 1 A schematic diagram of the circular buoy structure provided in this application;
[0026] Figure 2 A schematic diagram of the telescopic structure in the circular buoy provided in this application;
[0027] Figure 3A cross-sectional view of the telescopic structure in the circular buoy provided in this application.
[0028] Explanation of reference numerals in the attached figures
[0029] 10-Circular buoy; 101-Buoy shell; 102-Telescopic device; 103-Fiber rope; 104-Anchor chain; 105-Anchor block; 106-Hook; 1001-Shell; 1002-Rotor; 1003-Rotor spring; 1004-Shaft; 1005-Rubber seal; 1006-Fixing device. Detailed Implementation
[0030] Specific embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While specific embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.
[0031] It should be noted that certain terms are used in the specification and claims to refer to specific components. Those skilled in the art will understand that different terms may be used to refer to the same component. This specification and claims do not distinguish components based on differences in terminology, but rather on differences in function. The terms "comprising" or "including" used throughout the specification and claims are open-ended and should be interpreted as "comprising but not limited to." The following descriptions in the specification are preferred embodiments for carrying out this application; however, these descriptions are for the purpose of understanding the general principles of the specification and are not intended to limit the scope of this application. The scope of protection of this application shall be determined by the appended claims.
[0032] In the description of this application, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship in the working state of this application. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.
[0033] In this application, all geometric descriptions are based on relevant specifications or common general knowledge.
[0034] In this application, "circular buoy" can also be called "spherical buoy". The difference in the names does not affect the structure of the buoy, but is merely a common term or expression deviation in describing its shape.
[0035] This application provides a circular buoy 10 for inland mountain waterways, which includes a buoy shell 101, a telescopic device 102, and an anchor block 105.
[0036] In one specific embodiment of this application, the material of the buoy shell 101 is selected from one of high-density polyethylene (HDPE), polypropylene (PP), ABS, nylon (PA), fiberglass (FRP), carbon fiber composite material, polyurethane, stainless steel and aluminum alloy.
[0037] The telescopic device 102 is disposed and fixed on the inner wall of the buoy housing 101. The telescopic device 102 includes a housing 1001, a rotor 1002, a rotating shaft 1004, and a rotor spring 1003. The rotor 1002 is disposed inside the housing 1001 and is a disc-shaped structure that rotates around the rotating shaft 1004. The rotor spring 1003 is disposed between the rotor 1002 and the rotating shaft 1004. One end of the fiber rope 103 is coiled and fixed to the rotor 1002. Through holes are respectively opened on the buoy housing 101 and the housing 1001 of the telescopic device 102. The unfixed end of the fiber rope 103 passes through the above-mentioned through holes and is connected to the anchor chain 104.
[0038] In one specific embodiment of this application, the anchor chain 104 is connected to the anchor block 105.
[0039] In this application, the anchor chain 104 and the anchor block 105 are common mooring rigging commonly used by those skilled in the art.
[0040] In one specific embodiment of this application, the buoy shell 101 is integrally formed.
[0041] In one specific embodiment of this application, the buoy shell 101 is composed of an upper part and a lower part, which are fixed together by bolts and nuts.
[0042] In this application, the telescopic device 102 is not limited in specific size. The outer shell 1001 only needs to meet the configuration and installation of the rotor 1002, rotor spring 1003 and rotating shaft 1004, and the installation of rubber seal 1005 and fixing device 1006.
[0043] In this application, there is no specific size limitation on the length of the fiber rope 103. Users can adjust the length of the fiber rope 103 at will according to the needs of the usage scenario. Similarly, when the required length of the fiber rope 103 is longer, users can also adjust the size of the telescopic device 102 and its internal rotor 1002, rotor spring 1003 and rotating shaft 1004 to meet the user's usage needs.
[0044] In one specific embodiment of this application, the telescopic device 102 is fixed to the inner wall of the buoy housing 101, and the fixing method is to use bolts and nuts.
[0045] In one specific embodiment of this application, the telescopic device 102 is fixed to the inner wall of the buoy shell 101, and the fixing method is welding.
[0046] In one specific embodiment of this application, the telescopic device 102 is fixed to the inner wall of the buoy shell 101, and the fixing method is to use glue, which is selected from epoxy resin glue, acrylic structural glue, polyurethane glue and anaerobic glue.
[0047] In one specific embodiment of this application, a hook 106 is provided on the buoy shell 101.
[0048] In one specific embodiment of this application, the fiber rope 103 is made of a material that is corrosion-resistant, seawater-resistant, UV-resistant, has high tensile strength, and is impact-resistant or resistant to biological tearing.
[0049] In one specific embodiment of this application, the fiber rope 103 is made of a material selected from polyethylene, aramid, and steel wire rope.
[0050] In one specific embodiment of this application, the fiber rope 103 is made of polyethylene, preferably ultra-high molecular weight polyethylene (UHMWPE).
[0051] In this application, the anchor block 105 can be made of concrete.
[0052] In this application, the anchor chain 104 can be made of stainless steel.
[0053] In one specific embodiment of this application, in order to ensure that the buoy has sufficient buoyancy, the inside of the circular buoy is filled with low-density materials such as polystyrene foam or polyurethane foam.
[0054] In one specific embodiment of this application, the diameter of the buoy shell 101 is 0.4 to 1.3 m, for example, it can be 0.4 m, 0.5 m, 0.6 m, 0.7 m, 0.8 m, 0.9 m, 1 m, 1.1 m, 1.2 m, or 1.3 m.
[0055] In one specific embodiment of this application, the weight of the anchor block 105 is 25-100 kg, for example, it can be 25 kg, 50 kg, or 100 kg.
[0056] In one specific embodiment of this application, the diameter of the anchor chain 104 is 2.5 to 4 mm, for example, it can be 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, 3 mm, 3.1 mm, 3.2 mm, 3.3 mm, 3.4 mm, 3.5 mm, 3.6 mm, 3.7 mm, 3.8 mm, 3.9 mm, or 4 mm.
[0057] In this application, the connection method between the fiber rope 103 and the anchor chain 104 is the connection method that exists in general buoys, such as a shackle connection, and any knot method that meets the requirements can be used;
[0058] The shackle connection consists of a shackle body (U-shaped ring) and a cross pin. The fiber rope 103 is fixed to one end of the shackle by a knot, and the anchor chain passes through the ring hole at the other end of the shackle.
[0059] In this application, there are no restrictions on the connection method between the anchor block 104 and the anchor chain 105. It can be any technical method that can be used as described in the prior art, such as welding, bolting, or embedded connection of the anchor chain and anchor block.
[0060] In this application, the wall thickness of the buoy is not limited, as long as it meets the commonly used dimensions in the art.
[0061] In this application, the size, overall density, and key design factors of the buoy all meet international or national standards or industry design specifications.
[0062] The circular buoy for inland mountain waterways provided in this application will be illustrated below by way of examples.
[0063] Example
[0064] like Figure 1 As shown, this embodiment provides a circular buoy for inland mountain waterways, specifically comprising a buoy shell 101, a telescopic device 102, and an anchor block 105. The buoy shell 101 is made of aluminum alloy and consists of an upper and lower section, which are fixed together by bolts and nuts. The buoy shell 101 is spherical with a diameter of 0.9 m and is hollow inside. A through hole with a diameter of 25 cm is provided at the bottom of the buoy shell 101, and the telescopic device 102 is provided on the inner wall of the buoy shell 101.
[0065] like Figure 2 and Figure 3The diagram shows a telescopic device 102 installed on the inner wall of the buoy housing 101. Inside the housing 1001 of the telescopic device is a rotor 1002, which is a disc-shaped structure rotating around a shaft 1004. A rotor spring 1003, a radial coil spring, is centrally fixed to the shaft 1004, with its outer ring connected to the inner wall of the rotor 1002. One end of a fiber rope 103 is coiled and fixed to the outside of the rotor 1002. A through hole is provided on the housing 1001 of the telescopic device 102, coinciding with the center of a through hole in the buoy housing 101. The unfixed end of the fiber rope 103 passes through two through holes and connects to an anchor chain 104 with a diameter of 3 mm. The tension of the fiber rope 103 is adjusted by varying the number of coils (automatically adjusted in conjunction with the rotor spring); the material of the fiber rope is aramid fiber.
[0066] like Figure 1 As shown, one end of the anchor chain 104 that is not connected to the fiber rope 103 is fixed to the anchor block 105, wherein the anchor block weighs 50 kg.
[0067] like Figure 2 As shown, a through hole is provided on the outer shell 1001 of the telescopic device 102, and the center of this through hole coincides with the center of the through hole on the buoy outer shell 101. A fixing device 1006 is provided on the outer shell 1001 of the telescopic device 102. The fixing device 1006 consists of an L-shaped steel plate and bolts and nuts. The L-shaped steel plate is welded and fixed to the outer shell 1001 of the telescopic device. The bolts pass through the bolt through holes on the L-shaped steel plate and the corresponding bolt through holes on the buoy outer shell 101, and are tightened by nuts to secure the telescopic device 102 to the inner wall of the buoy outer shell 101. Rubber seals 1005 are provided on the outer sides of the through holes on the outer shell 1001 of the telescopic device 102 and the outer side of the through holes on the buoy outer shell 101. The rubber seals 1005 have a through hole in the center to allow the fiber rope 103 to pass through. The rubber seals 1005 can relatively fix the fiber rope and prevent aquatic plants brought up by the fiber rope 103 during telescopic movement from entering the buoy outer shell 101.
[0068] like Figure 1 As shown, a hook is provided on the buoy housing 101, on which a rope can be connected and fixed to connect and fix an adjacent circular buoy 10.
[0069] In one example, using the circular buoy 10 provided in the embodiment, when the waterway is at a high water level, the circular buoy 10 rises accordingly, the fiber rope 103 stretches, driving the rotor 1002 to rotate, and the rotor 1002 drives the rotor spring 1003 to tighten. The circular buoy 10 remains on the water surface to serve as a marker and will not pull heavy objects away from the riverbed or submerge the buoy. When the waterway is at a low water level, the circular buoy 10 sinks accordingly, the rotor spring 1003 releases its elasticity, and the fiber rope 103 contracts. The entire anchor chain 104 remains taut and will not cause the circular buoy 10 to drift when the water level is low.
[0070] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A circular buoy for inland mountain waterways, characterized in that, include: Buoy hull; Telescopic device; as well as, Anchor block; The telescopic device is installed and fixed on the inner wall of the buoy shell. The telescopic device includes a housing, a rotor, a rotating shaft, and a rotor spring. The rotor is disposed inside the housing and is a disc-shaped structure that rotates around the rotating shaft. A rotor spring is disposed between the rotor and the rotating shaft. One end of the fiber rope is coiled and fixed on the rotor; Through holes are provided on the outer shell of the buoy and the outer shell of the telescopic device, and the unfixed end of the fiber rope passes through the through holes and is connected to the anchor chain. The end of the anchor chain that is not connected to the fiber rope is fixed to the anchor block; A hook is provided on the outer shell of the buoy.
2. The circular buoy for inland mountain waterways according to claim 1, wherein, The buoy shell is composed of an upper part and a lower part, which are fixed together by bolts and nuts.
3. The circular buoy for inland mountain waterways according to claim 1, wherein, The telescopic device is fixed to the inner wall of the buoy shell by bolts and nuts.
4. The circular buoy for inland mountain waterways according to claim 1, wherein, A rubber seal is provided outside the through hole on the buoy housing and / or the through hole on the housing of the telescopic device.
5. The circular buoy for inland mountain waterways according to claim 1, wherein, The fiber rope is made of one of the following materials: polyethylene, aramid, and steel wire rope.
6. The circular buoy for inland mountain waterways according to claim 1, wherein, The buoy shell is made of one of the following materials: high-density polyethylene (HDPE), polypropylene (PP), ABS, nylon (PA), fiberglass (FRP), carbon fiber composite material, polyurethane, stainless steel, and aluminum alloy.
7. The circular buoy for inland mountain waterways according to claim 1, wherein, The diameter of the buoy's outer shell is 0.4 to 1.3 m.
8. The circular buoy for inland mountain waterways according to claim 1, wherein, The weight of the anchor block is 25-100 kg.
9. The circular buoy for inland mountain waterways according to claim 1, wherein, The diameter of the anchor chain is 2.5 to 4 mm.