KR102278166B1 - Buoy and buoy manufacturing method - Google Patents

Abstract

The invention relates to a buoy and a method for manufacturing the same. The buoy of the present invention comprises: a main tank having a first space formed therein and a first flange formed at one end thereof; a cover tank having a second space formed therein and having a second flange in contact with the first flange formed at one end thereof; and a ring coupled to a central region of the cover tank by welding, wherein a wall thickness of the cover tank is formed to be relatively thicker than that of the main tank.

Description

BUOY AND BUOY MANUFACTURING METHOD

The present invention relates to a buoy and a method for manufacturing the same, and more particularly, to a buoy and a method for manufacturing the same, which can effectively prevent leaks from occurring in a welded portion of a ring as before.

BUOY is a generic term for an object that floats on the surface of the sea. Sometimes it is made of Styrofoam, or it is made in the form of a tank to be filled with air. Its shape is varied.

Around us, buoys are widely used in farms. That is, as shown in FIG. 1 , an air inlet 2 is formed on one side of the buoyancy body 1 so that air can be injected and discharged, and a predetermined pressure is applied in the buoyancy body 1 through the air inlet 2 . The buoyancy body 1 is floated in the water by the buoyancy of the air filled therein by injecting air into it. 1 is disclosed in Korean Patent Office Application No. 20-1994-0017131.

However, although the conventional buoy configured as shown in FIG. 1 has a structurally simple advantage, when it is damaged by an external force applied from the outside, it loses its function as a buoy, and economic losses may be induced by damage to aquaculture farms, etc.

On the other hand, another conventional structure of the buoyancy is shown in FIGS. 2 and 3 . The structure of the buoy in FIGS. 2 and 3 is disclosed in Korean Patent Office Application No. 20-2004-0011633, and is applied to a water storage tank.

In general, as a water channel for long-term storage of drinking water, the water level of the water tank is automatically controlled by a water level valve. That is, in the hydrostatic valve, when the water level in the water storage tank is lowered, the lever is lowered by the weight of the float, and accordingly, the passage opening/closing ball in the valve body connected to the lever rotates to open the passage.

In addition, when the water level in the water storage tank increases, the lever is raised by the buoyancy force of the buoyant, and accordingly, the flow passage opening/closing ball in the valve body connected to the lever rotates to block the flow passage.

As such, the float is one of the most important design elements when manufacturing a hydrostatic valve. Although a float such as expandable polystyrene (Styrofoam) or injection-molded plastic resin has been used, recently, stainless steel with strong corrosion resistance and antibacterial properties has been used. A metal float 1 made of the same material is used.

Among them, as shown in FIGS. 2 and 3 , the conventional buoyancy-type hydrostatic water level ball valve has a buoyancy 1, a lever 2, a valve body 3, an induction pipe 4, a bolt 5, and a nut. (6) is composed and combined.

Here, the conventional buoyancy 1 is usually manufactured so that the upper hemisphere 10 and the lower hemisphere 20 are separately made by separating the normal spherical shape in half, and both are fixed by welding them to each other. to be. A ring 30 for fixing to the lever 2 is coupled to the lower hemisphere 20 as shown in FIG. 2 .

At this time, the ring 30 is welded to the lower hemisphere 20, particularly spot welding, and the welding site is weak during such spot welding, so that there is a high possibility that water leakage may occur later. Of course, to solve the leak problem, you can increase the thickness of the upper hemisphere 10 and the lower hemisphere 20, but in this case, the material cost increases and the weight of the float 1 is heavy, so it cannot provide a proper levitation function. Considering all these points, it is necessary to develop technology to complement this.

Korean Intellectual Property Office Application No. 10-2017-0148587 Korean Intellectual Property Office Application No. 10-2018-0013012 Korean Intellectual Property Office Application No. 10-2018-0152760 Korean Intellectual Property Office Application No. 10-2019-0053489

It is an object of the present invention to provide a buoy and a method for manufacturing the same, which can effectively prevent leakage of water from occurring in the welded portion of the ring as before.

The object is, the body tank is formed with a first space therein and a first flange is formed at one end; a cover tank having a second space formed therein and having a second flange in contact with the first flange formed at one end; and a ring coupled to the central region of the cover tank by welding, wherein the wall thickness of the cover tank is relatively thicker than that of the main tank.

The wall thickness of the main tank is 0.5 to 0.6t, the wall thickness of the cover tank is 0.9 to 1.0t, and the volume and length of the main tank are made at least twice larger than the volume and length of the cover tank, The ring may be welded to the cover tank at a point corresponding to an area of 2/3 to 5/6 of the total area of the cover tank.

The ring may include a pair of welding plates that are substantially welded to the cover tank while being in contact with the cover tank; a pair of inclined plates formed to be inclined toward each other at the ends of the pair of welding plates, the through-holes being formed in the plate surface; and a connecting plate connected to the ends of the pair of inclined plates, wherein the welding plate, the inclined plate, and the connecting plate may be integrally made of a single material.

The ring further includes a plurality of embossed protrusions formed at a lower end of the welding plate in contact with the cover tank, wherein the embossed protrusions are formed in a spot welded portion for spot welding the welding plate, the welding plate An additional welding portion may be further formed on the circumferential surface to double the welding bonding force with the cover tank.

On the other hand, the above object, a body tank manufacturing step of manufacturing a body tank having a first space formed therein and a first flange is formed at one end; A cover tank manufacturing step of manufacturing a cover tank in which a second space is formed therein and a second flange in contact with the first flange is formed at one end; and a pair of welding plates that are substantially welded to the cover tank while being in contact with the cover tank, and a pair of inclined plates formed to be inclined toward each other at the ends of the pair of welding plates and having a through hole in the plate surface; , A ring manufacturing step of producing a ring to be coupled by welding (welding) to the central region of the cover tank provided with a connecting plate connected to the end of the pair of inclined plates; When performing the main tank manufacturing step and the cover tank manufacturing step, the wall thickness of the cover tank is formed to be relatively thicker than the wall thickness of the main tank, but the wall thickness of the main tank is 0.5 to 0.6t, the cover The wall thickness of the tank is formed to be 0.9 to 1.0t, and the volume and length of the main tank are made at least twice larger than the volume and length of the cover tank, and when the ring manufacturing step is performed, the ring is the cover To be welded at a position corresponding to 2/3 to 5/6 of the total area of the tank, a plurality of embossed protrusions are formed at the lower end of the welding plate in contact with the cover tank, but the embossed protrusions are spot-welded to the welding plate It is also achieved by a method for manufacturing a float, characterized in that it is formed in a spot welded portion for spot welding, and an additional weld portion is further formed on the circumferential surface of the welding plate to double the welding bonding force with the cover tank.

According to the present invention, there is an effect that can effectively prevent the occurrence of leakage in the welding portion of the ring as before.

1 is a perspective view of a floating tool according to an embodiment of the prior art.
2 is an exploded perspective view of a buoyancy type hydrostatic water level ball valve to which a buoy is applied according to another embodiment of the related art.
3 is an exploded view of the buoyancy shown in FIG. 2 .
4 is a front view of a floating device according to a first embodiment of the present invention.
5 is an exploded view of FIG. 4 .
FIG. 6 is a schematic partial cross-sectional view of FIG. 4 .
FIG. 7 is a plan view of area A of FIG. 6 .
FIG. 8 is a side cross-sectional view of area A of FIG. 6 .
FIG. 9 is a flowchart for the method of manufacturing the buoy of FIG. 4 .
10 is a front view of a floating device according to a second embodiment of the present invention.
11 is a cross-sectional view of a main part of the annular region of FIG. 10 .
12 is a front view of a floating device according to a third embodiment of the present invention.
13 is a cross-sectional view of a main portion of the annular region of FIG. 12 .

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them.

However, since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiment described in the text.

For example, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea, since the embodiments are capable of various modifications and may have various forms.

In addition, the scope of the present invention should not be construed as being limited thereby because the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects.

In the present specification, the present embodiment is provided to complete the disclosure of the present invention, and to completely inform those of ordinary skill in the art to which the present invention pertains to the scope of the present invention. And the invention is only defined by the scope of the claims.

Accordingly, in some embodiments, well-known components, well-known operations, and well-known techniques have not been specifically described to avoid obscuring the present invention.

Meanwhile, the meaning of the terms described in the present invention is not limited to the dictionary meaning, and should be understood as follows.

When a component is referred to as being “connected” to another component, it may be directly connected to the other component, but it should be understood that other components may exist in between. On the other hand, when it is mentioned that a certain element is "directly connected" to another element, it should be understood that the other element does not exist in the middle. Meanwhile, other expressions describing the relationship between elements, that is, “between” and “immediately between” or “neighboring to” and “directly adjacent to”, etc., should be interpreted similarly.

The singular expression is to be understood as including the plural expression unless the context clearly dictates otherwise, and terms such as "comprises" or "have" refer to the described feature, number, step, action, component, part or these It is intended to indicate that a combination exists, and it should be understood that it does not preclude the possibility of the existence or addition of one or more other features or numbers, steps, operations, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined.

Terms defined in the dictionary should be interpreted as being consistent with the meaning of the context of the related art, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the description of the embodiment, the same reference numerals are assigned to the same components, and in some cases, the descriptions of the same reference numerals will be omitted.

(Example 1)

Fig. 4 is a front view of the buoyancy according to the first embodiment of the present invention, Fig. 5 is an exploded view of Fig. 4, Fig. 6 is a schematic partial cross-sectional view of Fig. 4, Fig. 7 is a plan view of the region A of Fig. 6, Fig. 8 is A side cross-sectional view of the region A of FIG. 6 , and FIG. 9 is a flowchart of the method of manufacturing the float of FIG. 4 .

Referring to these drawings, the scope of the present invention may be applied to the buoyancy 100 having the shape shown in FIG. 4 and the method for manufacturing the buoyancy device 100 having the shape shown in FIG. 4 .

First looking at the structure of the buoyancy ball 100 according to the present embodiment, the buoyancy ball 100 may include a body tank 110 , a cover tank 120 , and a ring 130 .

The body tank 110 is a tank in which a first space portion 111 is formed therein and a first flange 112 is formed at one end, and one side is opened. The body tank 110 may be made of a metal with strong corrosion resistance.

The cover tank 120 is a tank in which a second space portion 121 is formed therein and a second flange 122 in contact with the first flange 112 is formed at one end of the tank. The cover tank 120 may also be made of a metal with strong corrosion resistance.

The ring 130 is a structure coupled to the central region of the cover tank 120 by welding. This ring 130 is a means used for the same purpose as in FIG. 2 .

On the other hand, in the case of this embodiment, the body tank 110, the cover tank 120, and the ring 130 are individually manufactured, and then the buoy 100 is manufactured by welding them. At this time, the body tank 110, the cover The tank 120 and the ring 130 are manufactured and welded under the following conditions.

First, in the present embodiment, the wall thickness t2 of the cover tank 120 is relatively thicker than the wall thickness t1 of the main tank 110 is formed.

For example, the wall thickness t1 of the main tank 110 may be 0.5 to 0.6t, and the wall thickness t2 of the cover tank 120 may be 0.9 to 1.0t. t may be in millimeters.

As such, since the wall thickness t2 of the cover tank 120 is relatively thicker than the wall thickness t1 of the body tank 110, even if the ring 130 is welded to the cover tank 120, the welded portion is as before. It can prevent the shape from being damaged and leaking.

And, in the present embodiment, the volume and length of the main tank 110 are manufactured to be at least twice larger than the volume and length of the cover tank 120 .

This is because the material cost is high because the wall thickness t2 of the cover tank 120 has to be made thicker than the body tank 110. In this way, the size of the body tank 110 and the cover tank 120 is half and half unlike before. It is possible to reduce the cost by applying the asymmetric structure instead of this.

Meanwhile, in the present embodiment, the ring 130 is welded to the cover tank 120 at a point corresponding to 2/3 to 5/6 of the total area of the cover tank 120 . Accordingly, it is possible to provide a very strong fixing force.

The ring 130 is formed to be inclined toward each other at the ends of the pair of welding plates 131 and the pair of welding plates 131 that are substantially welded to the cover tank 120 while being in contact with the cover tank 120 . and a pair of inclined plates 132 having through holes 133 formed in the plate surface, and a connection plate 134 connected to the ends of the pair of inclined plates 132 .

In this case, the welding plate 131 , the inclined plate 132 , and the connecting plate 134 may be integrally manufactured by a single material. That is, the welding plate 131 , the inclined plate 132 , and the connecting plate 134 may be integrally made of a metal having corrosion resistance, such as aluminum.

The ring 130 manufactured in this way has a plurality of embossed protrusions 135 formed at the lower end of the welding plate 131 in contact with the cover tank 120 . The embossed protrusion 135 is formed in the spot welding portion 141 for spot welding the welding plate 131 .

In addition, an additional welding portion 142 is further formed on the circumferential surface of the welding plate 131 . Due to the additional welding portion 142 , the welding bonding strength with the cover tank 120 may be doubled.

Hereinafter, a method for manufacturing a buoy according to the present embodiment will be described.

The buoy manufacturing method according to this embodiment includes a body tank manufacturing step (S10), a cover tank manufacturing step (S20), and a ring manufacturing step (S30).

The body tank manufacturing step (S10) is a process of manufacturing the body tank 110 in which the first space portion 111 is formed therein and the first flange 112 is formed at one end.

The cover tank manufacturing step (S20) is a process of manufacturing the cover tank 120 in which the second space portion 121 is formed therein and the second flange 122 in contact with the first flange 112 is formed at one end. .

And, the ring manufacturing step (S30) is a pair of welding plates 131 that are substantially welded to the cover tank 120 while in contact with the cover tank 120, and each other at the ends of the pair of welding plates 131 The cover tank 120 includes a pair of inclined plates 132 , which are inclined toward the plate, and having a through hole 133 formed in the plate surface, and a connection plate 134 connected to the ends of the pair of inclined plates 132 . ) is a process of manufacturing the ring 130 to be coupled by welding (welding) in the central region.

On the other hand, when the body tank manufacturing step (S10) and the cover tank manufacturing step (S20) are performed, the wall thickness t2 of the cover tank 120 is relatively thicker than the wall thickness t1 of the body tank 110. .

In this case, the wall thickness t1 of the main tank 110 may be 0.5 to 0.6 t, and the wall thickness t2 of the cover tank 120 may be 0.9 to 1.0 t.

The volume and length of the body tank 110 are made to be at least twice larger than the volume and length of the cover tank 120 .

And, when the ring manufacturing step (S30) is performed, the ring 130 is welded to a position corresponding to 2/3 to 5/6 of the total area of the cover tank 120.

At this time, a plurality of embossed protrusions 135 are formed at the lower end of the welding plate 131 in contact with the cover tank 120 , but the embossed protrusions 135 spot welding the welding plate 131 by spot welding 141 . ) is formed in

In addition, an additional welding portion 142 is further formed on the circumferential surface of the welding plate 131 in order to double the welding bonding force with the cover tank 120 . Then, a solid ring 130 can be obtained, and there is no possibility of leakage later.

According to this embodiment, which acts based on the structure as described above, it is possible to effectively prevent leakage of water from occurring in the welding portion of the ring 130 as before.

(Second embodiment)

10 is a front view of the buoyancy according to the second embodiment of the present invention, and FIG. 11 is a cross-sectional view of a main part of the ring region of FIG. 10 .

Referring to these drawings, the float 200 according to the present embodiment may also include a body tank 110 , a cover tank 220 and a ring 230 , and the ring 230 is attached to the cover tank 220 . takes the form of welding.

Then, the ring 230 is in contact with the cover tank 220 and substantially in contact with the cover tank 220, the pair of welding plates 131 and the end of the pair of welding plates 131 are inclined toward each other. It may include a pair of inclined plates 132 having a through hole 133 formed in the plate surface, and a connection plate 134 connected to the ends of the pair of inclined plates 132 . The structure, function, and role thereof are the same as in the above-described embodiment.

On the other hand, in the case of this embodiment, a seat arrangement groove 221 in the form of a groove is formed on the upper surface of the cover tank 220 , and the welding plate 131 of the ring 230 is formed in this seat arrangement groove 221 . After being partially positioned, it takes the form of being welded. In this case, robust welding results can be obtained over a large area.

Even if this embodiment is applied, it is possible to effectively prevent leakage from occurring in the welding portion of the ring 230 as before.

(Example 3)

12 is a front view of the buoyancy according to a third embodiment of the present invention, and FIG. 13 is a cross-sectional view of a main part of the ring region of FIG. 12 .

Referring to these drawings, the float 300 according to the present embodiment may also include a body tank 110 , a cover tank 320 and a ring 230 , and the ring 230 is attached to the cover tank 320 . takes the form of welding.

In addition, the ring 230 is in contact with the cover tank 320 and substantially inclined toward each other at the ends of the pair of welding plates 131 and the pair of welding plates 131 that are welded to the cover tank 320 . It may include a pair of inclined plates 132 having a through hole 133 formed in the plate surface, and a connection plate 134 connected to the ends of the pair of inclined plates 132 . The structure, function, and role thereof are the same as in the above-described embodiment.

In the case of this embodiment, a seat arrangement groove 221 in the form of a groove is formed on the upper surface of the cover tank 320 , and the welding plate 131 of the ring 230 is partially in this seat arrangement groove 221 . After being positioned, it takes the form of being welded.

However, considering that the thickness of the portion will be reduced due to the formation of the seat arrangement groove portion 221, in this embodiment, an additional reinforcement plate ( 325) is added. The reinforcing plate 325 may serve to reinforce the cover tank 320 of the corresponding portion in a situation where the ring 230 is welded.

Even if this embodiment is applied, it is possible to effectively prevent leakage from occurring in the welding portion of the ring 230 as before.

As such, the present invention is not limited to the described embodiments, and it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, it should be said that such modifications or variations fall within the scope of the claims of the present invention.

100: buoyancy 110: body tank
111: first space 112: first flange
120: cover tank 121: second space part
122: second flange 130: ring
131: welding plate 132: inclined plate
133: through hole 134: connection plate
135: embossed protrusion 141: spot welded
142: additional welds

Claims (5)

delete delete delete a body tank having a first space formed therein and a first flange formed at one end;
a cover tank having a second space formed therein and having a second flange in contact with the first flange formed at one end; and
Includes a ring coupled by welding (welding) to the central region of the cover tank,
The wall thickness of the cover tank is formed to be relatively thicker than the wall thickness of the main tank,
The ring is
a pair of welding plates welded to the cover tank while being in contact with the cover tank;
a pair of inclined plates formed to be inclined toward each other at the ends of the pair of welding plates, the through-holes being formed in the plate surface; and
a connecting plate connected to the ends of the pair of inclined plates;
The welding plate, the inclined plate and the connecting plate are integrally made of a single material,
The ring further comprises a plurality of embossed protrusions formed at the lower end of the welding plate in contact with the cover tank,
The embossing protrusion is formed in a spot welding portion for spot welding the welding plate,
An additional welding portion is further formed on the circumferential surface of the welding plate to double the welding bonding force with the cover tank.
a body tank manufacturing step of manufacturing a body tank having a first space formed therein and a first flange formed at one end;
A cover tank manufacturing step of manufacturing a cover tank in which a second space is formed therein and a second flange in contact with the first flange is formed at one end; and
A pair of welding plates that are welded to the cover tank while being in contact with the cover tank, a pair of inclined plates formed to be inclined toward each other at the ends of the pair of welding plates, and a through hole formed in the plate surface; a ring manufacturing step of producing a ring to be coupled by welding to a central region of the cover tank but provided with a connecting plate connected to an end of the inclined plate;
When performing the body tank manufacturing step and the cover tank manufacturing step,
The wall thickness of the cover tank is formed to be relatively thicker than the wall thickness of the main tank, but the wall thickness of the main tank is 0.5 to 0.6t, and the wall thickness of the cover tank is 0.9 to 1.0t,
The volume and length of the main tank are made at least twice larger than the volume and length of the cover tank,
When performing the ring manufacturing step,
The ring is welded at a position corresponding to 2/3 to 5/6 of the total area of the cover tank,
A plurality of embossed protrusions are formed at the lower end of the welding plate in contact with the cover tank, and the embossed protrusions are formed in a spot welded portion for spot welding the welding plate,
An additional welding part is further formed on the circumferential surface of the welding plate in order to double the welding bonding force with the cover tank.

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