KR20230070607A - A buoy having a function of maintaining buoyancy in case of breakage and a method for manufacturing the same - Google Patents

Abstract

The present invention relates to a buoy having the function of maintaining buoyancy in case of breakage and a manufacturing method thereof. In order to manufacture a buoy formed from a tube to have an air chamber formed therein, the manufacturing method of the present invention comprises: a buoy molding step of integrally molding a seat ring with fine-threaded screw for valve mounting into a hollow buoy to form a tube inlet; a buoy valve manufacturing step; a blocking plate molding step; a gas tube manufacturing step; a gas tube insertion step of inserting the gas tube having a two-way sealing valve to block the inflow and outflow of gas from both inside and outside once gas is injected into the buoy; a blocking plate installation step of installing the blocking plate to block the tube inlet of the buoy; an expandable gas injection step of injecting gas having higher expansion force than air into the gas tube; a sealing valve sealing step; a buoy valve joint step of integrally joining the buoy valve with a check valve to the seat ring of the buoy to perform sealing; an air injection step of injecting the air necessary for the buoyancy of the buoy between the outside of the gas tube and the inside of the buoy through the buoy valve to form an air layer; a buoy valve sealing step; and a protective cap joint step.

Description

A buoy having a function of maintaining buoyancy in case of breakage and a method for manufacturing the same}

The present invention relates to a float having a function of maintaining buoyancy in case of damage and a method for manufacturing the same, and more particularly, to a float for aquaculture for aquaculture such as oysters and seaweed, or a floating float for a cage farm. It relates to a float having a function of maintaining buoyancy when the float is damaged by embedding a tube inside the float and a manufacturing method thereof.

In general, in order to farm aquatic products such as oysters and seaweed in the sea, it is aquaculture by connecting a rope planted with seeds or seeds of aquatic products to a floating float, and in order to construct a cage farm for fish farming, the end of the big fish is hung on the float Makes a huge fish tank.

At this time, the buoy is fixed to the rope and floats on the sea at regular intervals by buoyancy to help maintain the unfolded state of the rope.

In addition, in order to construct a cage and a sea farm for trapping and farming fish using nets in the sea, the frames are connected in a rectangular shape and floats are combined with these frames to float on the water, and then the cage net is installed at the bottom of the frame It is installed to prevent the cage net from sinking into the sea to form a cage farm.

The buoy, which is indispensable for cultivating such aquatic products, can play its role only when the purpose of minimizing wave resistance and maximizing buoyancy is achieved, and many technologies for this are being developed.

Accordingly, the types of floats widely used so far are Styrofoam, synthetic resin, synthetic resin covering material, EVA foam, etc., and 85% of the floats used in our coastal fishing grounds are Styrofoam floats.

The problem of such a Styrofoam buoy is that over time, moisture penetrates into the buoy and its buoyancy decreases, and it is damaged by strong waves such as typhoons, so that Styrofoam pieces accumulate on the beach or float on the shore, becoming a marine environmental pollutant. There is a problem of polluting the natural environment when the float is disposed of, and it is difficult to handle or recycle, so fishermen avoid using it.

It has been improved here and recently made of synthetic resin, synthetic resin coating, EVA foam, UV-coated High Density Polyethylene or high-strength rubber pipe, urethane, FRP, etc. to improve strength compared to buoys made of Styrofoam. However, it is currently being developed so that the float can be recycled when it is disposed of.

As a new problem in the buoy used in this way, when the buoy in use collides with a sailing fishing boat or is damaged for other reasons, water fills inside and loses buoyancy, as well as recovering the damaged buoy. As it causes difficulties, until now, only the buoyancy of the buoy has been paid attention to, and little attention has been paid to how to deal with the damage of the buoy.

Accordingly, the prior art for the buoy that has been developed and implemented so far is as follows.

Patent Application No. 10-2005-0032816 (April 15, 2005) is to provide a float for aquaculture that is easy to manufacture, has excellent durability, has excellent identification ability at night, and can easily identify whose farm it is, A spherical ball-shaped endothelium is manufactured by the blower molding method, and the endothelium is molded in a predetermined mold to form a float in which the endothelium and the outer skin are integrated, thereby producing a float having excellent durability and a neat appearance, After applying luminous paint to the surface of the inner skin, it is possible to mold the outer skin as a transparent resin in a state where it is put in a predetermined mold to mold a floating sphere in which the inner skin and outer skin are integrated. In this case, night identification is very easy during use, As it is integrally molded with the inner skin inserted inside, there is no junction at all, so the durability of the float is very excellent, the outer skin is a transparent material, and the night vision is excellent by applying luminous paint to the surface of the inner skin, and the inner skin is also excellent in night vision. After printing or marking the name of the owner and the name of the owner on the surface, the shell can be molded integrally, providing a float for farming that can also identify the owner. Patent Application No. 10-1987-0011426 (October 14, 1987) discloses that a tube assembly of a double-walled structure formed in the same center is made of a thermoplastic resin, especially nylon, and can pass fluids such as air, nitrogen, or gas, or liquid. To a double-walled elongated tube assembly which can be readily connected to connectors or couplings to control the operation of hydraulically actuated devices, and which is reproducible and dimensionally extruded by means of extruders equipped with crosshead dies and sizing dies. A method for continuously manufacturing highly accurate double-walled long tube assemblies. Patent Application No. 10-2016-0132804 (October 13, 2016) relates to a buoy using a multi-wall pipe, and more specifically, an outer surface in which an inner groove and an outer groove are continuously formed in a concavo-convex shape on the outer surface of the inner pressure layer of the inner diameter. The outer diameter of the reinforcing layer is used as a buoy by providing buoyancy while preventing water from penetrating into the inside by forming a cover part consisting of a pressure-resistant layer cover and an ultraviolet-ray stabilized layer cover at both ends of the body part that forms the outer diameter finishing layer in a double structure. It relates to an eco-friendly buoy using a multi-wall tube that provides sufficient buoyancy even when the surface layer is damaged through the structure and even when water permeates in part, and can be recycled using eco-friendly materials. Patent Application No. 10-2007-0074415 (2007.07.25) relates to a float for air inlet/outlet farming and a method for manufacturing the same, a soft float body with a valve fixing part formed on one side having an insertion hole connected to the inside in the center, A valve composed of a valve body and a valve core inserted into the insertion hole of the valve fixing part and having a through hole formed therein through which air is introduced and discharged, and inserted into the valve fixing part to prevent the discharge of air through the through hole of the valve. It includes a protective cap fixed to block the through hole of the valve, wherein the valve has a locking jaw formed on an outer circumferential surface of the valve body, a step is formed on the lower portion of the insertion hole of the valve fixing part, and a threaded portion is formed on the upper portion, and the protective cap A screw part is formed on the outer circumferential surface of the valve, the locking jaw of the valve is hooked and fixed to the step of the valve fixing part, and the screw part of the protective cap is an air inlet/outlet type rich for farming that is screwed into the screw part of the valve fixing part. Patent Application No. 10-2019-0042120 (2019.04.10) is related to various buoyancy bodies such as buoys for aquaculture and floats for solar power on the water. Despite the damage, it is possible to maintain buoyancy by the internal buoyancy body. After injecting polyethylene resin powder into a mold for rotational molding, the resin powder is heated and melted while rotating to form a hollow internal buoyancy body in the form of a mold cavity. step; inserting and fixing the molded internal buoyancy body in a state spaced apart from the mold surface using a core made of the same material as the internal buoyancy body inside the mold for rotational molding; Molding an external buoyant body in the form of a cavity of the mold by injecting resin powder into a rotational molding mold into which the internal buoyancy body is inserted and fixed, and then heating and melting the resin powder while rotating the mold; It is formed to include an internal buoyancy body in a spaced apart state inside the external buoyancy body. Patent Application No. 10-2020-0038830 (2020.03.31.) relates to an eco-friendly buoy applied with a double injection structure and a manufacturing method thereof. The eco-friendly buoy to which the double injection structure is applied has a first inner space with one side open , A first body portion provided with a first double injection surface along the outer circumference of one open surface; And a second body having a second inner space with one surface open and having a second double injection surface provided along the circumference of the outer surface of the open surface; including, but the open one surface of the first body and the second body By forming a double injection part on the first double injection surface and the second double injection surface in a state in which the open surface of the body part is in contact with each other, the first body part and the second body part are coupled, and the first inner space and The second inner space is characterized by forming a hollow airtight with the outside. Patent Application No. 10-2016-0048215 (2016.04.20) relates to a buoy formed by wrapping a synthetic resin concave-convex internal reinforcement body, and more specifically, polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC) ), FRP is used to cut the internal reinforcing body in which grooves and protrusions are continuously formed at regular intervals to a predetermined length, and after fixing the side closing plates on both sides by welding, water permeates the outside of the entire surface to the inside. It relates to a buoy formed by wrapping a synthetic resin concave-convex inner reinforcing body to prevent pollution of the sea by wrapping and fixing the inner reinforcing body with heat shrinkage without lifting.

The present invention did not prepare for the submersion and recovery of the damaged float by not preparing for the case where the floats were damaged during use and pursued only convenience in use. It is made of a double float with a built-in tube, and the inner tube is filled with gas with a high expansion coefficient at atmospheric pressure or a pressure 0.1 to 1 kgf/cm2 higher than this, and air is supplied to the inside of the float outside the tube at a pressure appropriate for the float to maintain buoyancy. The purpose is to prepare for the damage of the float by providing a float having a function of maintaining buoyancy when injected and damaged.

In the present invention for solving the above problems, in configuring a float formed of a tube to have an air chamber therein,

A sub-shaping process of integrally insert-molding the seat ring on which the fine screw is formed in a blower molding machine to form a float to form a tube inlet through which gas tubes can be freely inserted; A float valve manufacturing process for manufacturing a float valve mounted in the tube inlet; a blocking plate molding step of forming a blocking plate installed in the tube inlet to protect the gas tube; A gas tube manufacturing process of forming a gas tube configured with a two-way sealing valve inserted into the float and configured with a two-way sealing valve so that gas entry and discharge are blocked from both inside and outside when gas is injected once; a gas tube inputting step of introducing the gas tube manufactured in the gas tube manufacturing process into the inside of the sub-port through the tube inlet of the sub-port formed in the sub-shaping process; a blocking plate installation step of installing the blocking plate molded in the blocking plate forming step to seal the tube inlet to protect the gas tube; an expansion gas injection step of injecting a gas having greater expansive power than air into the gas tube introduced into the float in the gas tube injection step; In the expansion gas injection process, a gas with greater expansive power than air is injected into the gas tube to seal the outside of the closing valve of the gas tube in a state where the outer surface of the gas tube expands to contact the inner surface of the float, and ; A float valve coupling step of sealing the float valve manufactured in the float valve manufacturing step by integrally coupling it to the tube inlet of the seat ring in a state where the outer side of the shut valve is sealed in the shut valve sealing step; An air injection step of forming an air layer between the float and the gas tube by injecting air necessary for the buoyancy of the float between the outside of the gas tube and the inside of the float through the float valve integrally coupled to the float in the float valve coupling step; A float valve sealing step of sealing the sealing groove of the float valve with a sealing cap in a state where an air layer is formed inside the float in the air injection step; In the float valve sealing process, it is a float manufacturing method having a function of maintaining buoyancy when damaged, consisting of a protective cap coupling process for combining a protective cap to protect the float valve that seals the sealing groove with a sealing cap. Forming a tube inlet by integrally molding a seat ring having a small screw for mounting a valve in the float; Injecting a gas tube configured with a two-way sealing valve to block the entry and exit of gas from both inside and outside when gas is once injected into the inside of the float; configuring a blocking plate to block the tube inlet of the float; injecting a gas having a greater expansive force than air into the gas tube; Sealing by integrally combining the float valve constituting the check valve with the seat ring of the float; An air layer is formed by injecting air necessary for buoyancy of the float between the outside of the gas tube and the inside of the float through the float valve to form a float having a function of maintaining buoyancy when damaged.

Here, the seat ring forms a coupling protrusion on the outer periphery to insert injection molding integrally with the float, forms a protection flange on the outer end, and constitutes a valve holder coupling portion having a neck screw formed on the inner periphery. Forming a sealing flange to form a tube inlet to the side; The float valve forms a fine screw coupled to the fine screw of the seat ring on the outer circumference, forms a tool coupling part on the outer inner circumferential surface to facilitate screw coupling, and integrally forms a space securing ring entering the tube inlet. However, a valve seat having at least two or more ventilation holes formed in the space securing ring, a sealing groove for coupling a sealing cap outside the center, and a valve coupling hole formed in the center of the inner end of the sealing groove; a check valve coupled to the valve coupling hole; a sealing cap coupled to the sealing groove and having a wrench hole formed in the center of the outer side; Consisting of a protective cap coupled to the float to protect the sealing cap and valve seat; It consists of coupling the valve seat to the sealing ring by inserting a sealing ring between the seat ring and the valve seat.

The present invention described above makes the float a double float with a built-in gas tube and injects a gas with a high expansion coefficient into the gas tube so that the gas tube expands to fill the inside of the float, and the float inside the float maintains buoyancy. By injecting air at an appropriate pressure to form an air layer between the gas tube and the float, even if the float is damaged by external impact, the inner tube expands to fill the inside of the float, preventing water from penetrating into the float. It is an invention that creates a novel effect that maintains buoyancy until recovery, as well as facilitates the recovery of damaged floats.

1 is an exemplary process diagram according to practicing the present invention.
2 is an exemplary configuration of a gas tube inlet and a valve, which are main parts of the present invention.
Figure 3 is an exemplary state in which a gas tube is inserted into the buoy of the present invention.
Figure 4 is an enlarged view of part A of Figure 2;
Figure 5 is an exemplary state in which gas is injected into the gas tube of the present invention buoy.
Figure 6 is an enlarged view of part B of Figure 4;
Figure 7 is an example of a state in which air is filled in the buoy of the present invention.
Figure 8 is an enlarged view of part C of Figure 6;

The configuration of the present invention will be described in detail based on the accompanying drawings.

In configuring the float formed of a tube to have an air chamber therein,

In a blower molding machine that forms the float 10, the seat ring 20 having the fine screw formed is integrally insert-molded to form a tube inlet 25 through which the gas tube 50 is freely inserted. sub-shaping process;

A float valve manufacturing process for manufacturing a float valve 30 mounted on the seat ring 20;

a blocking plate molding step of forming a blocking plate 60 installed in the tube inlet 25 of the seat ring 20 to protect the gas tube 50;

A gas tube manufacturing process of forming a gas tube 50 configured with a sealing valve 51 so that the gas is injected into the float 10 and the gas is blocked from both inside and outside when gas is injected;

A gas tube inputting step of inserting the gas tube 50 manufactured in the gas tube manufacturing process into the sub-portion 10 through the tube inlet 25 of the sub-portion 10 formed in the sub-shaping process;

a blocking plate installation step of sealing the tube inlet 25 with the blocking plate 60 molded in the blocking plate forming step to protect the gas tube 50;

an expansion gas injection step of injecting an expansion gas having a higher expansion force than air into the gas tube 50 introduced into the float 10 in the gas tube introduction process;

In the expansion gas injection process, a gas having greater expansive power than air is injected into the gas tube 50 to seal the outside of the closing valve 51 when the expanded gas tube 50 fills the inside of the float 10 Close valve sealing process;

Float valve 30 manufactured in the float valve manufacturing process in a state where the outer side of the seal valve 51 is sealed in the seal valve sealing process is integrally combined with the tube inlet 25 of the seat ring 20 to seal it. valve coupling process;

In the float valve coupling process, air necessary for buoyancy is injected into the float 10 through the float valve 30 integrally coupled to the float 10, and the air layer 70 between the float 10 and the gas tube 50 ) and an air injection step to form;

A float valve sealing step of sealing the sealing groove 35 of the float valve 30 with a sealing cap 38 in a state where the air layer 70 is formed inside the float 10 in the air injection step;

A float manufacturing method having a function of maintaining buoyancy in case of damage consisting of a protective cap coupling process of combining a protective cap 40 to protect the sealing cap 38 sealed in the float valve sealing process and the float valve 30 Conduct.

By carrying out the above-described method for manufacturing a float having a function of maintaining buoyancy in case of damage, the seat ring 20 in which a small screw for mounting a valve is formed is integrally molded in the hollow hollow float 10 to integrally mold the tube inlet 25 );

When gas is injected once into the float 10, a gas tube 50 configured with a sealing valve 51 is inserted to block the entry and exit of gas from both inside and outside;

configuring a blocking plate 60 to block the tube inlet 25 of the float 10;

Injecting an expansion gas having a greater expansion force than air into the gas tube 50 and sealing the closing valve 51;

sealing the float valve 30 constituting the check valve 37 integrally with the seat ring 20 of the float 10;

Buoyancy at the time of damage consisting of forming an air layer 70 between the float 10 and the gas tube 50 by injecting air necessary for the buoyancy of the float 10 into the float 10 through the float valve 30 Obtain a float having the function of maintaining

Here, the seat ring 20 is. A coupling protrusion 21 is formed on the outer periphery to insert injection molding integrally with the float 10, a protection flange 22 is formed on the outer periphery, and a valve holder coupling part 23 formed with a set screw on the inner periphery. ), and forms a sealing flange 24 forming a tube inlet 25 to the inside thereof.

In addition, the float valve 30 forms a fine screw coupled to the fine screw of the seat ring 20 on the outer circumference, and forms a tool coupling part 32 on the inner circumferential surface to facilitate screw coupling, and the tube inlet The space securing ring 33 entering into (25) is integrally formed, and a sealing groove 35 for coupling the sealing cap 38 is formed on the outside of the center, and the sealing groove 35 is at the center of the inner end. a valve seat 31 having a valve coupling hole 36;

a check valve 37 coupled to the valve coupling hole 36;

a sealing cap 38 coupled to the sealing groove 35 and having a wrench hole 39 formed in the center of the outer side;

a protective cap 40 coupled to the float 10 to protect the sealing cap 38 and the valve seat 31;

It consists of a sealing ring 45 installed between the seat ring 20 and the valve seat 31.

At this time, at least two ventilation holes 34 are formed in the space securing ring 33 so that the injected air can easily enter between the inside of the float 10 and the gas tube 50.

Here, a groove through which air enters may be formed at an inner end of the space securing ring 33 instead of the ventilation hole 34 .

Looking at the embodiment of the present invention is as follows.

The gas tube 50 obtained in the gas tube manufacturing process is put into the float 1 integrally insert-molded with the seat ring 20 formed with the neck screw in the sub-formation process through the tube inlet 25.

At this time, the gas tube 50 should configure a sealing valve 51 that closes in both directions to block the entry and discharge of gas from both inside and outside when gas is injected into the inside.

The configuration of the sealing valve 51 is configured as a check valve so that after gas is injected, the outside of the injection hole is sealed with a separate sealing cap or sealed by bonding, so that the gas inside the gas tube is not necessarily discharged to the outside. Of course, the air filled inside the float must also not enter the inside of the gas tube 50.

In addition, the blocking plate 60 obtained in the blocking plate forming process is installed to cover the gas tube 50 and block the tube inlet 25.

At this time, the sealing valve 51 formed in the gas tube 50 is exposed to the outside through the valve coupling hole 61 formed in the center of the blocking plate 60 to facilitate gas injection.

Here, the blocking plate 60 may be inserted into the sealing valve 51 formed in the gas tube 50 and integrally combined.

In this way, in the state where the blocking plate 60 is installed, the gas tube 50 expands by injecting an expansion gas having a higher expansion force than air but no explosive power into the gas tube 50 at a pressure higher than atmospheric pressure by about 0.1 to 1 kgf/cm 2 . So that the outer surface is filled with the inner surface of the float (10).

As described above, when the expansion gas is filled in the gas tube 50, the outer side of the sealing valve 51 is sealed with a separate sealing cap or sealed with various methods such as bonding, so that the gas inside is not discharged to the outside, as well as inside the float. The air filled in is also prevented from entering the inside of the gas tube (50).

As described above, in the state in which the expansion gas is filled in the gas tube 50, the tube inlet 25 is blocked by the blocking plate 60, so that the expanded gas tube 50 protrudes through the tube inlet 25 with a large hole. will prevent

In the above state, the float valve 30 manufactured in the float valve manufacturing process is mounted on the seat ring 20 integrally insert-molded with the float 10 in the float forming process.

That is, after coupling the check valve 37 to the valve coupling hole 36 of the valve seat 31 constituting the float valve 30, the space securing ring 33 goes to the tube inlet 25 of the seat ring 20. The valve seat 31 is coupled to the thread formed in the seat ring 20 to enter.

Here, a sealing ring 45 is inserted between the sealing flange 24 of the seat ring 20 and the valve seat 31 to ensure airtightness.

At this time, the space securing ring 33 passes through the tube inlet 25 of the seat ring 20 and is pressed in close contact with the blocking plate 60, and when the valve seat 31 is screwed to the seat ring 20 The blocking plate 60 protects the gas tube 50 while responding to torsional friction generated at the front end of the space securing ring 33 .

In this way, in screwing the valve seat 31 to the seat ring 20, a separate tool may be coupled to the tool coupling portion 32 and tightly tightened.

When the coupling of the valve seat 31 is completed by the above-described practice, air is injected into the float 10 through the check valve 37 at a pressure of about 3 to 5 kgf/cm 2 .

At this time, the air injected through the check valve 37 is injected into the float 10 through the ventilation hole 34 formed in the space securing ring 33, and compresses the gas tube 50 so that the float 10 and the gas An air layer 70 is formed between the tubes 50.

When the air layer 70 is formed between the float 10 and the gas tube 50 in the above state, the sealing cap 38 is coupled to the sealing groove 35 of the valve seat 31, and the wrench tool is inserted into the wrench groove ( 35), the front end of the sealing cap 38 presses in close contact with the check valve 37 and tightens to secure airtightness.

After combining the sealing cap 38 in this way, the present invention is completed when the protective cap 40 for protecting the float valve 30 is covered with the float valve 30 and coupled to the float 10.

The present invention completed as described above embeds a gas tube 50 filled with expansion gas inside the float 10 and forms an air layer between the float 10 and the gas tube 50, so that the float 10 is damaged during use Even if water does not fill the inside of the float (10) and continuously maintains buoyancy, it creates a new effect that is convenient for collecting the float as well as performing its function as a float.

10: Bugu
20: seat ring 21: coupling protrusion 22: protection flange
23: valve holder coupling part 24: sealing flange 25: tube inlet
30: float valve 31: valve seat 32: tool coupling
33: space securing ring 34: ventilation hole 35: sealing groove
36: valve coupling hole 37: check valve 38: sealing cap
39: wrench hole 40: protective cap 50: gas tube
51: sealing valve 60: blocking plate 61: valve coupling hole
70: air layer

Claims (4)

In configuring the float formed of a tube to have an air chamber therein,
In a blower molding machine that forms the float 10, the seat ring 20 having the fine screw formed is integrally insert-molded to form a tube inlet 25 through which the gas tube 50 is freely inserted. sub-shaping process;
A float valve manufacturing process of manufacturing a float valve 30 mounted in the tube inlet 25;
a blocking plate forming step of forming a blocking plate 60 installed in the tube inlet 25 to protect the gas tube 50;
A gas tube manufacturing process of forming a gas tube 50 configured with a sealing valve 51 so that the gas is injected into the float 10 and the gas is blocked from both inside and outside when gas is injected;
The gas tube 50 manufactured in the gas tube manufacturing process is introduced into the float 10 through the tube inlet 25 formed in the seat ring 20 of the float 10 formed in the float forming process. input process;
a blocking plate installation step of installing the blocking plate 60 molded in the blocking plate forming step to seal the tube inlet 25 and protect the gas tube 50;
An expansion gas injection process of injecting an expansion gas having a higher expansion force than air into the gas tube 50 introduced into the float 10 in the gas tube input process so that the gas tube 50 fills the float 10 and ;
A closing valve sealing process of sealing the outside of the closing valve 51 of the gas tube 50 in a state where the outer surface of the gas tube 50 injected with the inflation gas in the inflation gas injection process is inflated to contact the inner surface of the float. class;
In a state where the outside of the sealing valve 51 of the gas tube 50 is sealed in the sealing valve sealing process, the float valve 30 manufactured in the float valve manufacturing process is integrated into the tube inlet 25 of the seat ring 20 A float valve coupling step for sealing by combining with;
In the float valve coupling process, air is injected into the float 10 through the float valve 30 integrally coupled to the float 10 to form an air layer 70 between the float 10 and the gas tube 50. forming an air injection process;
In the air injection process, in a state where the air layer 70 is formed inside the float 10, a float valve sealing step of sealing the sealing groove 35 of the float valve 30 with a sealing cap 38;
Buoyancy in case of damage, characterized in that it consists of a protective cap coupling process of combining the protective cap 40 to protect the float valve 30 that seals the sealing groove 35 with the sealing cap 38 in the float valve sealing process. A float structure manufacturing method having a function of maintaining. Forming a tube inlet 25 by integrally molding the seat ring 20 in which a small screw for mounting a valve is formed in a hollow float 10;
When gas is injected into the float 10, a gas tube 50 configured with a two-way sealing valve 51 is inserted to block the entry and exit of gas from both inside and outside;
configuring a blocking plate 60 to block the tube inlet 25 of the float 10;
Injecting an expansion gas having a greater expansion force than air into the gas tube 50 and sealing the closing valve 51;
sealing the float valve 30 constituting the check valve 37 integrally with the seat ring 20 of the float 10;
A float having a function of maintaining buoyancy when damaged, characterized in that the air layer 70 is formed by injecting air necessary for the buoyancy of the float 10 into the float 10 through the float valve 30. According to claim 2,
The seat ring 20 forms a coupling protrusion 21 on the outer periphery to insert injection molding integrally with the float 10, forms a protective flange 22 on the outer end, and inserts a set screw on the inner periphery. Constituting the formed valve holder coupling part 23, and forming a sealing flange 24 forming a tube inlet 25 to the inside thereof;
The float valve 30 forms a fine screw coupled to the fine screw of the seat ring 20 on the outer circumference, and forms a tool coupling part 32 on the inner circumferential surface to facilitate screw coupling, and the tube inlet ( 25) integrally forming the space securing ring 33, forming a sealing groove 35 for coupling the sealing cap 38 to the outside of the center, and forming a valve at the center of the inner end of the sealing groove 35 a valve seat 31 having a coupling hole 36;
a check valve 37 coupled to the valve coupling hole 36;
a sealing cap 38 coupled to the sealing groove 35 and having a wrench hole 39 formed in the center of the outer side;
a protective cap 40 coupled to the float 10 to protect the float valve 30;
A float having a function of maintaining buoyancy when damaged, characterized in that composed of a sealing ring 45 installed between the seat ring 20 and the valve seat 31. According to claim 3,
Floats having a function of maintaining buoyancy when damaged, characterized in that at least two or more ventilation holes 34 are formed in the space securing ring 33.

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