Eco-friendly buoy for fishing grounds and navigational routs using hdpe material

Abstract

An eco-friendly buoy for fishing grounds and navigational aids using HDPE material according to the present invention comprises an HDPE floating body in which various sensors are arranged in an internal space, a cylindrical HDPE light fixture mount in which one end is fastened to the upper surface of the HDPE floating body and a light fixture is installed at the other end, and an HDPE underwater weight portion disposed on the lower surface of the HDPE floating body, wherein the body of the cylindrical HDPE underwater weight portion and the HDPE bottom end cap are fastened by a heat fusion method. Through this, the present invention provides an environment that enables the same function as double-sided welding, reinforces the structure of the eco-friendly buoy, and reduces left-right rolling of the eco-friendly buoy.

Description

Technology Field

[0001] The present invention relates to an eco-friendly buoy for fishing grounds and navigational aids, which utilizes an HDPE material capable of reinforcing the structure of the eco-friendly buoy and reducing left-right rolling of the eco-friendly buoy. Background Technology

[0002] Recently, global efforts have been made to prevent marine environmental pollution and reduce carbon emissions from materials to processing, which is having a significant impact on corporate environmental changes. Furthermore, medium-sized fishing boundary facilities required for fishing grounds and passenger ship routes are necessitated to be manufactured from eco-friendly materials that are easy to maintain, due to issues such as maintenance and management.

[0003] Furthermore, as coastal aquaculture areas expand, the number of leisure vessels increases, and the operation of small coastal passenger ships grows, there are increasing demands for safety in various aspects.

[0004] However, existing navigational aids were constructed with steel structures, and some were built with aluminum, but there were difficulties in operation, such as issues with production costs and continuous maintenance.

[0005] However, since installing navigational aids in shallow waters presents difficulties in terms of cost and operation, there is a demand for the production of medium-sized buoys made of eco-friendly materials.

[0006] HDPE materials currently have a recycling rate of 100%, and during production, they are more eco-friendly than aluminum, an existing eco-friendly material, and are more economical at about one-third the cost. In addition, HDPE materials are resistant to seawater corrosion and have strengths against corrosion, which was a major problem with existing iron and aluminum materials, and have the advantage of not requiring the maintenance of consumables such as AF (antifouling paint) and anodes.

[0007] HDPE buoys can be manufactured using injection molding, sheet molding, coating methods, or bonding fusion methods using sheets.

[0008] However, compared to existing steel and aluminum welding machines weighing about 3 to 7 kg, HDPE welding machines have a larger volume and require pressure to be applied to the extrusion welding machine, making it difficult to apply them to small or medium-sized shapes.

[0009] Therefore, although HDPE sheets and extruded materials are environmentally friendly and have the advantage of being resistant to seawater, existing manufacturing methods were limited, and the large size of HDPE welders compared to existing CO2, MIG, and TIG welders caused difficulties in manufacturing methods due to welding problems in narrow spaces. In addition, as a prior art document related to the present invention described below, there is the Korean Registered Patent No. 10-2353021 (publication date 2022.01.19), titled 'Eco-friendly buoy with bonded fusion using a sheet and method of manufacturing the same'.

[0010] The matters described in this background technology section are written to enhance understanding of the background of the invention and may include matters that are not prior art already known to those skilled in the art to which this technology belongs. The problem to be solved

[0011] The present invention proposes an eco-friendly buoy for fishing grounds and navigational aids that utilizes HDPE material to reinforce the structure of the eco-friendly buoy and reduce lateral rolling of the eco-friendly buoy. means of solving the problem

[0012] The eco-friendly buoy for fishing grounds and navigation markers using the HDPE material of the present invention comprises an HDPE floating body in which various sensors are arranged in an internal space, a cylindrical HDPE light fixture mount in which one end is fastened to the upper surface of the HDPE floating body and a light fixture is installed at the other end, and an HDPE underwater weight portion disposed on the lower surface of the HDPE floating body, wherein the body of the cylindrical HDPE underwater weight portion and the HDPE bottom end cap are fastened by a heat fusion method.

[0013] In the above HDPE weight portion, a hybrid structural reinforcing material made of aluminum, consisting of a plurality of wings, may be disposed inside the cylindrical HDPE body.

[0014] A plurality of wings of the above-mentioned hybrid structural reinforcement can each be fastened to a structural member fastening part formed inside the above-mentioned HDPE bottom end cap.

[0015] Inside the above HDPE underwater weight portion, a heavy material can be filled to act as a weight after the hybrid structural reinforcing material is placed inside a cylindrical extrusion pipe.

[0016] A plurality of lower fixing lugs may be attached to the lower surface of the HDPE floating body to reduce left-right rolling of the HDPE floating body.

[0017] A chain connecting shackle with a chain attached to the above lower fixing lug can be fastened to the bearing.

[0018] A plurality of upper lifting lugs, which are combined with an upper deck plate and a side plate, can be attached to the upper surface of the above HDPE floating body.

[0019] The above HDPE light fixture mount may have a cylindrical pipe made of at least one of aluminum, stainless steel, or carbon material inserted into an HDPE pipe. Effects of the invention

[0020] According to the present invention, a cylindrical HDPE submerged weight is disposed on the lower surface of a cylindrical HDPE floating body, and by connecting the body of the cylindrical HDPE submerged weight and the HDPE bottom end cap by a heat fusion method, an environment is provided that can perform the same function as double-sided welding.

[0021] In addition, the present invention reinforces the structure inside the mold to enable fastening with an aluminum hybrid structure inside the HDPE submerged weight section, and provides an environment in which the HDPE submerged weight section serves as a weight for various materials such as cement, iron weights, and steel structures, as well as for marker facilities, and performs functions such as buoyancy and attitude control.

[0022] In addition, the present invention provides an environment in which left-right rolling of an eco-friendly buoy can be reduced and external forces caused by waves can be reduced by fastening a plurality of lower fixing lugs to the lower surface of the HDPE floating body.

[0023] In addition, the present invention reinforces the structure by inserting a cylindrical pipe made of at least one of aluminum, stainless steel, or carbon material into the HDPE pipe of an HDPE light fixture mount, and provides an environment that prevents the center of buoyancy from rising upward. Brief explanation of the drawing

[0024] FIG. 1 is a perspective view of an eco-friendly buoy for fishing grounds and navigational aids using HDPE material according to one embodiment of the present invention. FIG. 2 is a front view of an eco-friendly buoy for fishing grounds and navigational aids using HDPE material according to one embodiment of the present invention. FIG. 3 is a cross-sectional view illustrating one cross-section of an eco-friendly buoy for fishing grounds and navigational aids using HDPE material according to one embodiment of the present invention. FIG. 4 is an exploded perspective view of an eco-friendly buoy for fishing grounds and navigational aids made of HDPE material according to one embodiment of the present invention. FIG. 5 is a drawing illustrating an example in which the body of a cylindrical HDPE submerged weight and an HDPE bottom end cap are connected by a heat fusion method according to one embodiment of the present invention. FIG. 6 is a drawing illustrating an HDPE bottom end cap according to one embodiment of the present invention. FIG. 7 is a drawing illustrating an example of a structural member fastening portion of a plurality of wings of a hybrid structural reinforcing material and an HDPE bottom end cap according to one embodiment of the present invention. FIG. 8 is a drawing illustrating the structure of a lower fixing lug according to one embodiment of the present invention. FIG. 9 is a drawing illustrating an example of a plurality of upper lifting lugs fastened to the upper deck plate of an HDPE floating body according to one embodiment of the present invention and a hatch formed on the upper deck plate. FIG. 10 is a drawing illustrating an example in which a cylindrical pipe is inserted into the inner surface of an HDPE pipe of an HDPE light fixture mount according to one embodiment of the present invention. FIG. 11 is a drawing illustrating an example of a lighting fixture installation part according to one embodiment of the present invention. Specific details for implementing the invention

[0025] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0026] Prior to this, it should be understood that the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention, and that various equivalents and modifications that can replace them may exist at the time of filing this application.

[0027] Embodiments of the present invention are described below with reference to the attached drawings so that those skilled in the art can easily implement them. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. Furthermore, in order to clearly explain the present invention in the drawings, parts unrelated to the explanation have been omitted, and similar parts throughout the specification are denoted by similar reference numerals.

[0028] The size and thickness of each component shown in the drawings are depicted arbitrarily for the convenience of explanation, and thus the present invention is not necessarily limited to what is shown in the drawings; the thickness has been enlarged to clearly represent various parts and regions.

[0029] Throughout the specification, when a part is described as "including" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components. Furthermore, terms such as "…part," "…unit," and "module" as used in the specification refer to a unit that processes at least one function or operation, and this may be implemented in hardware, software, or a combination of hardware and software.

[0030] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the embodiments pertain. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0031] In addition, when describing the embodiments, if it is determined that a detailed description of related prior art could unnecessarily obscure the essence of the embodiments, such detailed description is omitted.

[0032] Now, with reference to FIGS. 1 to 11, an eco-friendly buoy for fishing grounds and navigational aids made of HDPE material according to one embodiment of the present invention will be described in detail.

[0033] FIG. 1 is a perspective view of an eco-friendly buoy for fishing grounds and navigation markers made of HDPE material according to one embodiment of the present invention, FIG. 2 is a front view of an eco-friendly buoy for fishing grounds and navigation markers made of HDPE material according to one embodiment of the present invention, FIG. 3 is a cross-sectional view showing one cross-section of an eco-friendly buoy for fishing grounds and navigation markers made of HDPE material according to one embodiment of the present invention, and FIG. 4 is an exploded perspective view of an eco-friendly buoy for fishing grounds and navigation markers made of HDPE material according to one embodiment of the present invention.

[0034] Referring to FIGS. 1 to 4, an eco-friendly buoy (1000) for fishing grounds and navigation markers using HDPE material according to one embodiment of the present invention includes a buoy made of high-density polyethylene (HDPE).

[0035] An eco-friendly buoy (1000) for fishing grounds and navigation markers using HDPE material according to one embodiment of the present invention comprises an HDPE floating body (100) in which various sensors are arranged in an internal space, a cylindrical HDPE light fixture mount (500) in which one end is connected to the upper surface of the HDPE floating body (100) and a light fixture is installed at the other end, and an HDPE underwater weight part (200) which is arranged on the lower surface of the HDPE floating body and in which the body of the cylindrical HDPE underwater weight part and the HDPE bottom end cap are connected by a heat fusion method.

[0036] A plurality of upper lifting lugs (110) that are combined with an upper deck plate (130) and a side plate (150) can be attached to the upper surface of the above HDPE floating body (100).

[0037] A plurality of lower fixing lugs (400) that are disposed on the lower surface of the HDPE floating body (100) and reduce left-right rolling of the HDPE floating body (100) may be attached to the lower surface of the HDPE floating body (100).

[0038] In one embodiment of the present invention, the eco-friendly buoy (1000) for fishing grounds and navigation markers made of HDPE material has three lower fixing lugs (400) that can be combined with the lower deck plate (140) and the side plate (150) of the HDPE floating body (100), respectively.

[0039] And, a chain connecting shackle (422) with a chain (420) attached to the lower fixing lug (400) can be attached by a bearing (424).

[0040] The above HDPE underwater weight portion (200) can be positioned at the center of the lower surface of the above HDPE floating body portion (100).

[0041] In addition, the above HDPE weight portion (200) may have a hybrid structural reinforcing material (210) made of aluminum material consisting of a plurality of wings disposed inside the cylindrical HDPE body.

[0042] A plurality of wings (212) of the above hybrid structural reinforcement (210) can each be fastened to a structural member fastening part (310) formed inside the HDPE bottom end cap (300).

[0043] Inside the above HDPE underwater weight portion (200), after the hybrid structural reinforcing material (210) is placed inside a cylindrical extrusion pipe, a heavy material such as cement or iron can be filled to act as a weight.

[0044] In order to reinforce the structure of the above HDPE light fixture mount (500), a cylindrical pipe (530) made of at least one of aluminum, stainless steel, or carbon material may be inserted into the HDPE pipe (520).

[0045] Through this, the eco-friendly buoy (1000) for fishing grounds and navigational markers using HDPE material according to one embodiment of the present invention is designed with an internal HDPE marker structure that is easy to manufacture and provides an environment where the buoy body can be manufactured without the use of an external jig.

[0046] FIG. 5 is a drawing illustrating an example in which the body of a cylindrical HDPE submerged weight portion and an HDPE bottom end cap are connected by a heat fusion method according to one embodiment of the present invention, and FIG. 6 is a drawing illustrating an HDPE bottom end cap according to one embodiment of the present invention.

[0047] Referring to FIGS. 5 and 6, an eco-friendly buoy (1000) for fishing grounds and navigation markers made of HDPE material according to one embodiment of the present invention can have the lower end (220) of the body of a cylindrical HDPE underwater weight part (200) and the upper end (320) of an HDPE bottom end cap (300) connected by a heat fusion method.

[0048] In addition, the above HDPE weight portion (200) may have a hybrid structural reinforcing material (210) made of aluminum material consisting of a plurality of wings disposed inside the cylindrical HDPE body.

[0049] For example, the three wings (212) of the hybrid structural reinforcement (210) can each be fastened to a structural member fastening part (310) formed inside the HDPE bottom end cap (300).

[0050] And, inside the above HDPE underwater weight portion (200), after the hybrid structural reinforcing material (210) is placed inside a cylindrical extrusion pipe, a heavy material such as cement or rebar can be filled to act as a weight.

[0051] In this way, the above HDPE underwater weight portion (200) serves as a weight for the marker facility, and to provide weight for attitude control, various materials such as cement, iron weights, and steel structures can be placed inside the above HDPE underwater weight portion (200) to perform functions such as buoyancy and attitude control.

[0052] For the production of HDPE buoys, HDPE extruded material was used for the bottom, and HDPE plates can be manufactured by heating the plates, rolling them, and welding. However, classification societies and related organizations stipulate that the outer surface in contact with the water surface must be welded on both sides during the construction of ships and buoys to satisfy watertightness and rigidity.

[0053] Due to the characteristics of HDPE welding machines, double-sided welding is impossible in confined spaces, making it difficult to manufacture medium and large HDPE signage facilities.

[0054] Accordingly, the eco-friendly buoy (1000) for fishing grounds and navigation markers using HDPE material according to one embodiment of the present invention applies a mold-based fusion method for the end cap, and since the welded part alone cannot support the load, a structural security method using an aluminum hybrid structure is used in parallel.

[0055] An eco-friendly buoy (1000) for fishing grounds and navigation markers using HDPE material according to one embodiment of the present invention overcomes the following two technical problems by using a closing cap method on the weight portion.

[0056] First, the eco-friendly buoy (1000) for fishing grounds and navigation markers, which is made of HDPE material according to one embodiment of the present invention, solves double-sided welding, which was impossible with welding, by using a cap fusion method. Unlike welding, the cap fusion method melts the base material in both directions with heat on the body below the water surface connecting the caps and fuses it with a constant pressure, providing an environment where it can perform the same function as double-sided welding.

[0057] Second, the eco-friendly buoy (1000) for fishing grounds and navigation markers using HDPE material according to one embodiment of the present invention solves the problem of supporting heavy loads by fastening an aluminum hybrid structure inside the HDPE underwater weight portion (200) and reinforcing the structure inside the mold.

[0058] FIG. 7 is a drawing illustrating an example of a structural member fastening portion of a plurality of wings of a hybrid structural reinforcing material and an HDPE bottom end cap according to one embodiment of the present invention.

[0059] Referring to FIG. 7, an eco-friendly buoy (1000) for fishing grounds and navigation markers made of HDPE material according to one embodiment of the present invention is joined by heat fusion in the case of the body of the HDPE bottom end cap (300) and the HDPE underwater weight part (200), and a hybrid structural reinforcing material (210) made of aluminum is inserted to reinforce the structure and connected to the HDPE bottom end cap (300).

[0060] A plurality of wings (212) of the above aluminum hybrid structural reinforcement (210) can each be fastened by bolting to a structural member fastening part (310) formed inside the HDPE bottom end cap (300).

[0061] An eco-friendly buoy (1000) for fishing grounds and navigation markers using HDPE material according to one embodiment of the present invention provides an environment where stable and efficient structural reinforcement is possible by fastening the aluminum hybrid structural reinforcement (210) to the interior of the HDPE bottom end cap (300) so that even when a heavy object is loaded inside the body of the HDPE underwater weight portion (200), the load applied only to the welded part is distributed to the main structure.

[0062] FIG. 8 is a drawing illustrating the structure of a lower fixing lug according to one embodiment of the present invention.

[0063] Referring to FIG. 8, an eco-friendly buoy (1000) for fishing grounds and navigation markers made of HDPE material according to one embodiment of the present invention may have three lower fixing lugs (400) attached to the lower surface of the HDPE floating body (100) to reduce left-right rolling of the HDPE floating body (100).

[0064] The plurality of lower fixing lugs (400) can each be connected to the lower deck plate (140) and the side plate (150) of the HDPE floating body (100). Additionally, a chain connecting shackle (422) to which a chain (420) is attached can be connected to each lower fixing lug (400) by means of a bearing (424) in the lug hole (412).

[0065] An eco-friendly buoy (1000) for fishing grounds and navigation markers using HDPE material according to one embodiment of the present invention may have a plurality of lower fixing lugs (400) installed by penetrating the lower water surface plate of the HDPE floating body (100) and joining with the internal material, or may have a plurality of lower fixing lugs (400) installed by welding two or more plates.

[0066] According to one embodiment of the present invention, an eco-friendly buoy (1000) for fishing grounds and navigational markers made of HDPE material can solve watertightness and strength problems by being installed through a plate material below the water surface.

[0067] The above plurality of lower fixing lugs (400) can be designed to be as long as possible, like a keel member of a ship, and can be welded across three sides, including the HDPE submerged weight section (200), the lower deck plate (140) which is the lower plate of the HDPE floating section (100), and the side plate (150) which is the side plate of the HDPE floating section (100).

[0068] In addition, metal liners (bearings) were added to the areas where fixed shackles and chains are installed to reinforce the structure and function and prevent friction and tearing.

[0069] The above-mentioned plurality of lower fixing lugs (400) can functionally reduce left-right rolling of the eco-friendly buoy and reduce external forces caused by wave force, and by arranging wide holes to allow fluid movement, it provides an environment in which seawater can be discharged when the pressure exceeds a certain level to reduce external forces.

[0070] FIG. 9 is a drawing illustrating an example of a plurality of upper lifting lugs fastened to the upper deck plate of an HDPE floating body according to one embodiment of the present invention and a hatch formed on the upper deck plate.

[0071] Referring to FIG. 9, an eco-friendly buoy (1000) for fishing grounds and navigation markers made of HDPE material according to one embodiment of the present invention has a hatch (120) installed on the upper deck plate (130) of the HDPE floating body (100), thereby enabling the installation and maintenance of sensor devices, etc. inside the HDPE floating body (100), and providing an environment where repairs are easy in case of water accumulation or sensor device failure inside the HDPE floating body (100).

[0072] Three upper lifting lugs (110a, 110b, 110c) can be attached to the upper surface of the above HDPE floating body (100) by being combined with the upper deck plate (130) and the side plate (150), respectively.

[0073] An eco-friendly buoy (1000) for fishing grounds and navigation markers made of HDPE material according to one embodiment of the present invention has three upper lifting lugs (110a, 110b, 110c) combined with an upper deck plate (130) and a side plate (150) to facilitate the manufacturing, transportation, and installation of the eco-friendly buoy (1000), and can be operated by supporting at three locations to provide a structurally safe environment and weight distribution.

[0074] FIG. 10 is a drawing illustrating an example in which a cylindrical pipe is inserted into the inner surface of an HDPE pipe of an HDPE light fixture mount according to one embodiment of the present invention, and FIG. 11 is a drawing illustrating an example of a light fixture installation part according to one embodiment of the present invention.

[0075] Referring to FIGS. 10 and 11, an eco-friendly buoy (1000) for fishing grounds and navigation markers made of HDPE material according to one embodiment of the present invention has one end of a cylindrical HDPE light fixture mount (500) fastened to the upper surface of the HDPE floating body (100), and a light fixture can be installed on a light fixture installation mount (510) disposed at the other end. In addition, the HDPE light fixture mount (500) may have a cylindrical pipe (530) made of at least one of aluminum, stainless steel, and carbon material inserted into an HDPE pipe (520).

[0076] Although HDPE is a lightweight and highly elastic material, it has the property of deforming due to ultraviolet rays and heat, and returning to its original state once the cause of the deformation is removed; therefore, it may expand and warp during the summer months.

[0077] To solve this problem, the present invention reinforces the structure of the HDPE light fixture mount (500) by inserting a separate cylindrical pipe (530) inside the HDPE pipe (520), thereby providing an environment capable of responding to changes in external force. In addition, the cylindrical pipe (530) can be made of aluminum, stainless steel, carbon fiber, etc., to reduce weight increase and provide an environment that prevents the center of buoyancy from rising upward.

[0078] A light fixture installation mount (510) positioned at the other end of an HDPE light fixture mount (500) is configured with multiple bolting holes (512) to allow for installation according to the shape or type of the light fixture device, thereby providing an environment that enhances convenience in the design and light fixture installation stages of an eco-friendly buoy.

[0079] Accordingly, an eco-friendly buoy for fishing grounds and navigation markers using HDPE material according to one embodiment of the present invention provides an environment capable of performing the same function as double-sided welding by arranging a cylindrical HDPE submerged weight portion on the lower surface of a cylindrical HDPE floating body portion and connecting the body of the cylindrical HDPE submerged weight portion and an HDPE bottom end cap by a heat fusion method.

[0080] In addition, the present invention reinforces the structure inside the mold to enable fastening with an aluminum hybrid structure inside the HDPE submerged weight section, and provides an environment in which the HDPE submerged weight section serves as a weight for various materials such as cement, iron weights, and steel structures, as well as for marker facilities, and performs functions such as buoyancy and attitude control.

[0081] In addition, the present invention provides an environment in which left-right rolling of an eco-friendly buoy can be reduced and external forces caused by waves can be reduced by fastening a plurality of lower fixing lugs to the lower surface of the HDPE floating body.

[0082] In addition, the present invention reinforces the structure by inserting a cylindrical pipe made of at least one of aluminum, stainless steel, or carbon material into the HDPE pipe of an HDPE light fixture mount, and provides an environment that prevents the center of buoyancy from rising upward.

[0083] The embodiments of the present invention described above are not implemented only through devices and methods, but may also be implemented through a program that realizes a function corresponding to the configuration of the embodiments of the present invention, or a recording medium on which such a program is recorded. Such a recording medium may be executed not only on a server but also on a user terminal.

[0084] Although embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements by those skilled in the art using the basic concept of the present invention as defined in the following claims also fall within the scope of the present invention.

Claims

Claim 1 An eco-friendly buoy for fishing grounds and navigation markers made of HDPE material, comprising: an HDPE floating body in which various sensors are arranged in an internal space; a cylindrical HDPE light fixture mount in which one end is fastened to the upper surface of the HDPE floating body and a light fixture is installed at the other end; and an HDPE underwater weight portion disposed on the lower surface of the HDPE floating body, wherein the body of the cylindrical HDPE underwater weight portion and the HDPE bottom end cap are fastened by a heat fusion method, wherein the HDPE underwater weight portion is characterized by having a hybrid structural reinforcing material made of aluminum, consisting of a plurality of wings, arranged inside the cylindrical HDPE body. Claim 2 delete Claim 3 An eco-friendly buoy for fishing grounds and navigational aids made of HDPE material, characterized in that, in claim 1, a plurality of wings of the hybrid structural reinforcement are each fastened to a structural member fastening part formed inside the HDPE bottom end cap. Claim 4 An eco-friendly buoy for fishing grounds and navigational aids made of HDPE material according to claim 3, characterized in that the interior of the HDPE submerged weight portion is filled with a weight to act as a weight after the hybrid structural reinforcing material is placed inside a cylindrical extruded pipe. Claim 5 An eco-friendly buoy for fishing grounds and navigational aids made of HDPE material, characterized in that, in claim 1, a plurality of lower fixing lugs are fastened to the lower surface of the HDPE floating body to reduce left-right rolling of the HDPE floating body. Claim 6 An eco-friendly buoy for fishing grounds and navigational aids made of HDPE material, characterized in that, in the 5th paragraph, a chain connecting shackle with a chain attached is fastened to the lower fixing lug by a bearing. Claim 7 An eco-friendly buoy for fishing grounds and navigational aids made of HDPE material, characterized in that, in claim 1, a plurality of upper lifting lugs are fastened to the upper surface of the HDPE floating body, which are combined with an upper deck plate and a side plate. Claim 8 In claim 1, the above HDPE light fixture mount is characterized by having a cylindrical pipe made of at least one of aluminum, stainless steel, and carbon material inserted into an HDPE pipe, making it an eco-friendly buoy for fishing grounds and navigation markers using HDPE material.

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