KR101762315B1 - Buoyancy device having multi layer of air - Google Patents

Abstract

A buoyancy device with multiple air layer structures is disclosed. The buoyancy device of the multiple air layer structure of the present invention comprises: a cylindrical airtight case which forms a hollow portion sealed inside from the outside; And a buoyancy member filled in the hollow portion and forming a plurality of air filling spaces between the two sheets of vinyl. According to the present invention, it is possible to provide a buoyancy device with a multiple air layer structure, which is easy to manufacture and can maintain buoyancy for a long time even if some damage occurs due to external impact.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a buoyancy device having multiple air-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a buoyancy device having a multiple air layer structure, and more particularly, to a buoyancy device having a multiple air layer structure capable of maintaining buoyancy for a long time even if some damage occurs due to an external impact.

Microstyrofoam, which is recognized as a major source of pollution in the marine environment, has been investigated to have a significant impact on the pollution of marine ecosystems. The fine styrofoam that pollutes the oceans is sometimes used as a wastewater for coastal wastewater, which is widely used as an inexpensive buoyant in marine aquaculture facilities. And is most likely to occur.

The moxibustion of the styrofoam material is light and cheap in price, and is used mainly in a coastal aquaculture facility. However, since it is easy to wear and durability is low, there is a problem that a large amount of fine styrofoam is generated. Therefore, styrofoam, which is a main cause of pollution of the marine environment, is being developed to develop moxibustion which can be manufactured at a low price without using it as its material.

In this connection, Korean Patent Registration No. 1540201 discloses an eco-friendly fishing ball, a manufacturing apparatus and a manufacturing method thereof, and Patent Publication No. 1540201 discloses an ABS (Acrylonitrile-Butadiene-Styrene) resin material The first outer skin 6 of the second outer skin 8 and the edge coupling portion 10 of the second outer skin 8 are accommodated in the support plate 32 of the ceramic material and are installed in the vacuum glass tube to prevent breakage by oxidation, The heating unit 30 is formed by indirect heating and melting of the joining portion 10 of the first and second outer skin 6 and 8 located at the second fixing portions 24 and 26 to form the heat ray 30 formed by the infrared ray Nichrome wire The outer skin 4 is formed by fusing and bonding with the indirect heat of the inner skin 4 and the inner skin 4. The inner skin 14 in the form of an air ball having the buoyancy space 16 inside the outer skin 4, And the second outer skin (6) (8), so that the buoyant force acts on the inner skin (14) and the outer skin The urethane resin is foamed in the spacing space of the skin 4 to prevent its own buoyancy function and erosion of the fishing port 2 when the outer skin 4 is broken and the adhesion of the inner and outer skin 14 and 4 The intermediate layer 12 is formed.

Patent Publication No. 1540201 discloses an injection molding machine having excellent durability, oil resistance, heat resistance, and high impact strength at a low temperature, and being easy to process, .

However, in Patent Publication No. 1540201, an intermediate layer 12 in which a urethane resin is foamed is formed in a space separated from the inner skin 14 and the outer skin 4 so that the inner skin 14, the intermediate layer 12, (Impact energy of the waves, tensile force of the rope and collision with the ship) applied to the outer skin from outside are transmitted to the inner layer 14 through the intermediate layer 12, If cracks are generated on the outer skin due to external impact or erosion, the cracks may develop to the inner skin part 14 in a short period of time and seawater may penetrate into the buoyancy space part 12. Patent Publication No. 1540201 only forms a single buoyant space portion 12 inside the endothelium portion 14, so that even if a small crack is generated in the endothelium portion 14, the buoyancy force is substantially lost and must be discarded.

Japanese Patent Publication No. 1540201 discloses a buoyancy space 12 enclosed in the inside of the inner layer 14 and an intermediate layer formed by foaming urethane resin in the space between the inner layer 14 and the outer skin 4 12), the manufacturing process is rather complicated, and there is a problem that buoyancy is lost even in a small crack as described above, so that the bubble of the registered patent publication No. 1540201 is used in a marine aquaculture facility It is virtually unused.

(0001) Korean Patent Publication No. 1540201 (Registered on July 21, 2015)

It is an object of the present invention to provide a buoyant buoyancy structure capable of maintaining buoyancy for a long period of time even if some damage occurs due to an impact applied from the outside and is easy to manufacture, Device.

According to the present invention, the above object can be achieved by providing a cylindrical sealing case for forming a hollow portion sealed inside from the outside; And a buoyancy member filled in the hollow portion and forming a plurality of air filling spaces between the two sheets of vinyl.

And a protective layer for blocking ultraviolet rays may be formed on the outer surface of the closed case.

The closed case includes a cylindrical first body and a second body having open ends, and the open end of the first body and the second body are thermally fused with the fused sheet along the circumferential direction in a state where they face each other .

The fusion-bonded sheet may be coated with a fluorescent paint so as to improve visibility at night.

The closed case may include a cylindrical first body and a second body with one end opened, and a groove through which the rope is wound may be formed along the circumferential direction on each of outer surfaces of the first body and the second body. .

And a connecting rod for connecting the first body and the rope wrapped around the second body in a zigzag manner, wherein the first end of the first body and the open end of the second body are in close contact with each other by the tension of the binding string, .

Wherein the air filling space is elongated in a direction perpendicular to the circumferential direction of the airtight case so that both end portions are pressed against both end portions in the longitudinal direction of the airtight case, a coating waterproofing agent is applied to the inner surface of the airtight case, When the hollow portion is filled with the buoyancy member, a plurality of closed spaces sealed between the inner surface of the closed case and the buoyancy member may be formed.

According to the present invention, a buoyancy member for forming a plurality of air-filled spaces between two sheets of vinyl is filled in the closed case, and a plurality of closed spaces sealed between the inner surface of the closed case and the buoyancy member are formed, It is possible to provide a buoyancy device of multiple air layer structure that is easy to manufacture and can maintain buoyancy for a long time even if some damage occurs due to external impact.

Further, buoyancy is formed by a simple structure in which the first body and the second body are brought into close contact with each other by the tension of the binding string after the buoyancy member is filled in the hollow portion by rotating the buoyancy member so that the user can easily repair the damage, It is possible to provide a buoyancy device of a multiple air layer structure which is made possible.

1 is a perspective view showing a buoyancy device having a multiple air layer structure according to an embodiment of the present invention;
2 is an exploded perspective view of the buoyancy device of the multiple air layer structure of FIG.
3 is a sectional view of the buoyancy device of the multiple air layer structure of FIG.
4 is a perspective view illustrating a buoyancy device having a multiple air layer structure according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

The buoyancy device of the multiple air layer structure of the present invention can maintain the buoyancy for a long time even if some damage is caused by the impact applied from the outside, and it is easy to manufacture and can be easily repaired and reused by the user at a low cost in case of damage .

FIG. 1 is a perspective view of a buoyancy device with multiple air layer structure according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the buoyancy device of the multiple air layer structure of FIG. 1, FIG. 4 is a perspective view showing a buoyancy device of a multiple air layer structure according to another embodiment of the present invention. FIG.

As shown in FIGS. 1 to 3, the buoyancy device 10 of the multiple air layer structure of the present invention can maintain buoyancy for a long time even if some damage is caused by an external impact, (100) and a buoyancy member (200).

The closed case 100 includes a first body 110 and a second body 120. The first body 110 and the second body 120 form a hollow portion that is hermetically sealed from the outside. It is to be understood that the hollow portion is not specifically shown in the drawing but refers to the inner space of the closed case 100.

As shown in FIG. 2, the first body 110 and the second body 120 each have a cylindrical shape with one end opened. The first body 110 and the second body 120 are injection molded as a polyethylene material.

A stepped portion 111 inserted into the opening of the second body 120 is formed in the opening of the first body 110. The first body 110 and the second body 120 are arranged such that the opened ends of the first body 110 and the second body 120 face each other and then the stepped portion 111 is inserted into the opening of the second body 120, Lt; / RTI >

The fusing sheet 101 is provided in a strip shape in one direction. The fusing sheet 101 is thermally fused along the circumferential direction to the outer surface of the opening portion which is in close contact with each other in a state where the step portion 111 is inserted into the opening portion of the second body 120 during manufacture, The inflow of seawater is prevented. The fusing sheet 101 is made of a polyethylene material such as the first body 110 and the second body 120.

A fluorescent layer 103 is formed on the fusing sheet 101 by application of a fluorescent paint. As shown in FIG. 3, when a fluorescent layer 103 is formed by a fluorescent paint, a fluorescent paint mainly contains a fluorescent pigment that emits fluorescent light that absorbs ultraviolet rays that are invisible and changes the visible light to visible light , It absorbs ultraviolet rays and improves night visibility, thereby facilitating night work by the operator.

As shown in FIG. 3, a protective layer 102 for blocking ultraviolet rays is formed on the outer surfaces of the first body 110 and the second body 120. Polyethylenes can be weakened by exposure to ultraviolet rays as the elongation decreases due to photooxidation. When the protective layer 102 made of a UV absorber such as UV 531 is formed on the outer surfaces of the first body 110 and the second body 120 made of polyethylene and the first body 110 and the second body 120, It is possible to improve the weatherability of the body 120 and prevent environmental pollution by suppressing recording, cracking and destruction by ultraviolet rays.

1 to 3, grooves 104 are formed along the circumferential direction on the outer surfaces of the first body 110 and the second body 120, respectively, to which the rope R is wound. Referring to FIG. 4, the rope R is wound around the groove 104. The rope R maintains a state of being restrained inside the groove 104 through the step between the groove 104 and the outer surface of the enclosure 100. [ A hook (H) may be coupled to the end of the rope (R). Although not shown, the hook H is releasably bound to a rope fixed to the sea floor.

1 to 3, the buoyancy member 200 has a structure in which a plurality of air filling spaces 201 are formed. The two vinyl sheets 210 are bonded to each other by heat fusion or the like outside the air filling space 201 It is made in a combined form. The buoyancy member 200 may be manufactured on the same principle as an air bag that is packaged together with the article upon packaging of the susceptible article and absorbs an impact applied from the outside.

As shown in FIGS. 2 and 3, the buoyancy member 200 is filled in the hollow portion when the first body 110 and the second body 120 are coupled. The longitudinal direction of the air filling space 201 forms a right angle with the circumferential direction of the enclosure 100 in a state where the buoyancy member 200 is filled in the hollow portion.

The plurality of air filling spaces 201 are sequentially connected by two sheets of vinyl 210 joined by thermal fusion or the like while being spaced from each other in a direction perpendicular to the longitudinal direction. As shown in FIG. 2, the buoyancy member 200 is filled in the hollow portion in a state in which the buoyancy member 200 is rolled in the circumferential direction of the closed case 100 to form a cylindrical shape similar to the hollow portion.

The buoyancy member 200 is partially compressed in the process of being filled in the hollow portion by being rolled in the circumferential direction of the enclosure 100. In this process, the vinyl 210 is partially elastically deformed, There is an advantage that the total buoyancy is increased as compared with the conventional technology in which air is simply filled in the closed space.

The length of the air filling space 201 is longer than the length of the hollow portion. The both ends of the buoyancy member 200 are pressed by the inner surfaces of both sides of the enclosure 100 in the longitudinal direction of the enclosure 100 when the first body 110 and the second body 120 are engaged.

A water repellent agent is applied to the inner surfaces of the first body 110 and the second body 120 before the buoyancy member 200 is inserted into the first body 110 and the second body 120. The coating waterproofing agent may be an environmentally friendly inorganic coating waterproofing agent or the like.

The buoyancy member 200 is coated on the inner surfaces of the first body 110 and the second body 120 and then filled in the hollow portion while being rolled in the circumferential direction of the enclosure 100. The coating film waterproofing agent is cured after a predetermined time to form a waterproof layer 106 between the inner surface of the airtight case 100 and the vinyl 210 outside the air filling space 201. The outer vinyl 210 of the air filling space 201 is adhered to the inner surface of the airtight case 100 through the waterproof layer 106 as shown in FIG. A plurality of airtight spaces 107 are formed between the outer vinyl 210 of FIG.

Patent Publication No. 1540201 discloses an intermediate layer formed by foaming a urethane resin in the space between the endothelium and the outer skin to maintain the adhered state of the endothelium, the middle layer, and the outer skin. Thus, Kinetic energy, tensile strength of the rope bounded, collision with the ship) is easily transmitted to the endothelium through the intermediate layer, and if a small crack occurs in the outer skin due to external impact or erosion, the cracks develop to the endothelium within a short period of time There was a problem that seawater penetrated into the buoyant space layer. Patent Publication No. 1540201 only forms a single buoyant space layer inside the endothelium, so that even if a small crack is generated in the endothelium, buoyancy is actually lost and must be discarded.

In addition, JP-A No. 1540201 discloses a method of forming a buoyant space layer enclosed in the inside of the endothelium and forming an intermediate layer in which a urethane resin is foamed in the space between the endothelium and the outer skin, And the above-mentioned problem of losing buoyancy even in small cracks is disclosed in Patent Publication No. 1540201, and thus the buoy is not actually used in marine aquaculture facilities.

The buoyancy device 10 of the multiple air layer structure of the present invention is characterized in that the buoyancy member 200 forming a plurality of air filling spaces 201 is filled inside the enclosure 100, A plurality of closed spaces 107 are formed between the inner surface of the closed case 100 and the outer vinyl 210 of the air filling space 201 by the coating film water repellent applied to the inner surface of the body 120, Thereby solving the problems of the prior art.

That is, even if cracks are generated in the first body 110 or the second body 120 due to an external impact or erosion, the buoyancy device 10 having the multi-air layer structure of the present invention can prevent cracks in the inside of the enclosure 100 The buoyancy force of the buoyancy device 10 is reduced to a volume of one first water immersion space (hereinafter referred to as " first water immersion space "), And a sufficient buoyancy is formed.

Even if the portion of the vinyl 210 which is in contact with the first water immersion space is damaged in a state in which the first water immersion space is immersed in the water, the seawater is discharged to any one of the air filling spaces 201 So that the buoyant force of the buoyancy device 10 forms sufficient buoyancy in a state in which the buoyant force of the buoyancy device 10 is reduced only by the volume of one first water immersion space and the second water immersion space. Subsequently, the buoyancy reduction of the buoyancy device 10, that is, the flooding of another air filling space 201 due to the damage of the portion of the vinyl 210 that has come in contact with the second flooding space, progressively occurs.

Therefore, even if cracks are generated in the first body 110 or the second body 120 due to external impact or erosion, the buoyancy device 10 of the multiple air layer structure of the present invention is capable of reducing the total buoyancy gradually So that the operator of the aquaculture facility can easily identify and replace the damaged buoyancy device 10 before the buoyancy device 10 completely sinks below the surface of the water.

4, the buoyancy device 20 of the multiple air layer structure according to another embodiment of the present invention includes a first body 110 and an opened end of the second body 120, So that the first body 110 and the second body 120 can be coupled to each other.

The binding rods 105 are made of a material having high friction and tensile strength such as nylon and connect the ropes R wound on the first body 110 and the second body 120 in a staggered manner. The binding rods 105 form a tension between the pair of ropes R to closely contact the opened ends of the first body 110 and the second body 120 with each other. Although not shown, a sealing member (not shown) may be coupled between the first body 110 and the opened one end of the second body 120.

Accordingly, the buoyancy device 20 of the multiple air layer structure according to another embodiment of the present invention can separate the binding rods 105 when the first body 110, the second body 120, or the buoyancy member 200 is damaged And reassembly allows the operator to easily disassemble the buoyancy device 10, replace / repair, and reassemble the damaged configuration.

According to the present invention, a buoyancy member for forming a plurality of air-filled spaces between two sheets of vinyl is filled in the closed case, and a plurality of closed spaces sealed between the inner surface of the closed case and the buoyancy member are formed, It is possible to provide a buoyancy device of multiple air layer structure that is easy to manufacture and can maintain buoyancy for a long time even if some damage occurs due to external impact.

Further, buoyancy is formed by a simple structure in which the first body and the second body are brought into close contact with each other by the tension of the binding string after the buoyancy member is filled in the hollow portion by rotating the buoyancy member so that the user can easily repair the damage, It is possible to provide a buoyancy device of a multiple air layer structure which is made possible.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, it should be understood that such modifications or alterations should not be understood individually from the technical spirit and viewpoint of the present invention, and that modified embodiments fall within the scope of the claims of the present invention.

10, 20: Buoyancy device
100: sealed case 200: buoyancy member
110: first body 210: vinyl
111: step 201: air filling space
120: second body
101: Fused sheet
102: Protective layer
103: Fluorescent layer
104: Groove
105: bond line
R: Rope
H: Hook
106: Waterproof layer
107: Sealed space

Claims (7)

A cylindrical closed case for forming a hollow portion in the inside with a closed space; And
And a buoyancy member filled in the hollow portion and forming a plurality of air filling spaces between the two sheets of vinyl,
Wherein the air filling space is elongated in a direction perpendicular to the circumferential direction of the airtight case so that both ends are pressed against both longitudinal ends of the airtight case,
When a floodproofing agent is applied to the inner surface of the closed case and then the floating member is rotated in the circumferential direction of the closed case so that the hollow portion is filled with the floating member, Is formed,
The seawater introduced into the enclosure through the cracks is trapped in any one of the enclosed spaces so that the inflow of the seawater is blocked,
Even if the vinyl which is in contact with any one of the closed spaces is damaged, the seawater is blocked in any one of the air filling spaces constituted by the damaged vinyl,
A protective layer for blocking ultraviolet rays is formed on the outer surface of the closed case,
The closed case includes a cylindrical first body and a second body having one opened end and the open end of the first body and the second body are thermally fused with the fused sheet along the circumferential direction,
The fusion sheet is coated with a fluorescent paint so as to improve visibility at night,
The hermetically sealed case includes a cylindrical first body and a second body having an opening at one end thereof and a groove through which a rope is wound is formed along the circumferential direction on each of outer surfaces of the first body and the second body,
And a binding rope that connects the first body and the rope wrapped around the second body in a staggered manner,
Wherein the first body and the open end of the second body are in close contact with each other due to the tension of the binding string. delete delete delete delete delete delete

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