KR20130003318A - Pipe connecting assembly - Google Patents

Pipe connecting assembly Download PDF

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Publication number
KR20130003318A
KR20130003318A KR1020110064582A KR20110064582A KR20130003318A KR 20130003318 A KR20130003318 A KR 20130003318A KR 1020110064582 A KR1020110064582 A KR 1020110064582A KR 20110064582 A KR20110064582 A KR 20110064582A KR 20130003318 A KR20130003318 A KR 20130003318A
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KR
South Korea
Prior art keywords
pipe
main body
insulating member
circumferential surface
slip
Prior art date
Application number
KR1020110064582A
Other languages
Korean (ko)
Inventor
박영훈
Original Assignee
박영훈
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 박영훈 filed Critical 박영훈
Priority to KR1020110064582A priority Critical patent/KR20130003318A/en
Publication of KR20130003318A publication Critical patent/KR20130003318A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/18—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings

Abstract

The present invention includes a main body fitted to the end of the metal pipe to form a flow path connected to the pipe; A fastening member screwed with a threaded portion formed on an outer circumferential surface of the main body to couple the main body to the pipe and having the same material as the main body; An insulating member interposed between the inner circumferential surface of the main body and the outer circumferential surface of the pipe; Disclosed is a pipe fitting, characterized in that the insulating member includes a non-slip member provided between the inner circumferential surface of the insulating member and the outer circumferential surface of the pipe to prevent sliding in the longitudinal direction of the pipe.

Description

Pipe fittings {Pipe connecting assembly}

The present invention relates to pipe fittings, and more particularly, to pipe fittings that are coupled to pipe ends for coupling with other pipes or valves.

In general, pipes are for transporting fluids such as tap water, fire water, and gas, and corrosion prevention management is very important for airtightness, lifespan, maintenance, and hygiene.

On the other hand, according to the installation conditions, a plurality of pipes are connected and extended by pipe fittings, or valves are generally connected by pipe fittings.

By the way, when the pipe is connected by metal members of different materials, battery corrosion between different metals (also referred to as galvanic corrosion) occurs.

In addition, the conventional pipe is screwed or welded to the pipe, the thread is formed or welded directly to the pipe is damaged by the pipe, the coating or plating of the pipe is damaged, causing corrosion during construction. have.

That is, the above-mentioned battery corrosion and corrosion promoting factors work in combination, so that the corrosion progresses particularly fast in the joint of the pipe, and the cost required for maintenance and management such as replacement of the pipe joint is significantly increased.

On the other hand, as a prior art of the pipe fittings for solving the above problems, there is Korea Patent Publication No. 2010-34683 filed by the inventor of the present application.

Pipe joints disclosed in Korean Patent Laid-Open No. 2010-34683 improved the yield tensile stress in the axial direction by forming a taper on the outer circumferential surface of the insulating member. This significantly lowers the problem of easy separation from the pipe.

In particular, a phenomenon in which the yield tensile stress is remarkably lowered by several rotations causes a leak of fluid in an environment in which external force such as tensile force or torsion is applied, thereby requiring repair of pipe fittings.

It is an object of the present invention to improve the yield tensile stress in order to solve the above problems, and to provide a pipe joint that is resistant to torsional external force.

The present invention has been created to achieve the object of the present invention as described above, the present invention includes a main body that is fitted to the end of the metal pipe to form a flow path connected to the pipe; A fastening member screwed with a threaded portion formed on an outer circumferential surface of the main body to couple the main body to the pipe and having the same material as the main body; An insulating member interposed between the inner circumferential surface of the main body and the outer circumferential surface of the pipe; Disclosed is a pipe fitting, characterized in that the insulating member includes a non-slip member provided between the inner circumferential surface of the insulating member and the outer circumferential surface of the pipe to prevent sliding in the longitudinal direction of the pipe.

The insulating member includes a first taper configured to increase an outer diameter from the pipe toward the main body so that the fastening member presses the insulating member toward the outer circumferential surface of the pipe when the fastening member is screwed with the main body. The second taper may be formed to reduce the outer diameter as the main body is pushed from the pipe toward the main body to press the insulating member toward the outer circumferential surface of the pipe when the screw is screwed with the main body.

The insulating member may further include a protrusion in which one end thereof protrudes toward an inner circumferential surface so as to be in close contact with an end surface of the pipe.

The insulating member may be formed with a non-slip member seating portion having an inner diameter larger than the outer diameter of the pipe at the end portion of the direction in which the pipe is inserted.

The difference between the inner diameter of the non-slip member seating portion and the outer diameter of the pipe may be greater than or equal to the thickness of the non-slip member.

The non-slip member is preferably used STS 304, it is preferable to have a 'C' shape.

More preferably, the non-slip member has a metal material and at least one opening is formed in a radial direction.

The opening may have a shape of at least one of a circle and a polygon.

The non-slip member is a band-shaped member having a length smaller than the outer diameter of the pipe, and may be inserted into a 'C' shape on the inner circumferential surface of the insulating member.

The fastening member and the main body may have the same metal material, and may have a different metal material from the main body.

The non-slip member is preferably at least 5 mm in the pipe length direction from the end of the insulating member.

The insulating member may be installed to prevent the main body and the fastening member from contacting each other.

The pipe fitting according to the present invention further includes a non-slip member provided between the insulating member and the pipe, which can significantly improve the yield tensile stress in the longitudinal direction of the pipe and can also provide a pipe fitting that is resistant to torsional external force. There is an advantage.

In particular, the pipe fitting according to the present invention is the pipe fitting of the embodiment shown in Figs. 1 and 2 and the pipe joint disclosed in Korean Patent Publication No. 2010-34683, the pipe longitudinal yield tensile stress of 20,452N and 5,818, respectively As N, it can be seen that the longitudinal yield tensile stress is significantly improved.

In addition, as a result of twisting and rotating the pipe fitting according to the present invention and the pipe fitting disclosed in Korean Patent Publication No. 2010-34683 in an assembled state, Korean Laid-Open Patent Publication No. 2010-34683 is easily separated from a pipe after two revolutions. The pipe fittings did not separate from the pipe after 20 turns and there was no leakage of fluid in the pipe.

1 is an exploded perspective view of a pipe fitting according to the present invention.
FIG. 2 is a cross-sectional view of the pipe fitting of FIG. 1 assembled.
3 is a cross-sectional view showing another example of the joint according to the present invention.

Hereinafter, a pipe fitting according to the present invention will be described in detail with reference to the accompanying drawings.

Pipe fittings according to the present invention, as shown in Figures 1 and 2, the body 10 is fitted to the end of the pipe (2) made of metal to form a flow path (12) connected to the pipe (2); A fastening member 20 which is screwed with the threaded portion 19 formed on the outer circumferential surface of the main body 10 to couple the main body 10 to the pipe 2 and has the same material as the main body 10; An insulating member 30 interposed between the inner circumferential surface of the main body 10 and the outer circumferential surface of the pipe 2; The insulating member 30 includes a non-slip member 50 installed between the inner circumferential surface of the insulating member 30 and the outer circumferential surface of the pipe 2 to prevent sliding in the longitudinal direction of the pipe 2.

The pipe (2) is formed of a suitable material according to the purpose of installation, for example, when used as a water pipe may be a galvanized steel pipe, copper pipe, stainless steel pipe and the like.

The main body 10 may be configured in various ways, such as a connector (or coupler), a valve for connecting the pipes 2 in a separated state.

The main body 10 of the connector structure has a 'T' shaped tee, elbow, and diffuser in addition to the '-' shaped sleeve as shown in FIGS. 1 and 2. ) And a reducer may have various shapes.

When the main body 10 is a valve, there are a general ball valve (see FIG. 3), a faucet, and the like.

The main body 10 has a flow path 12 connected to the pipe 2 so as to perform a connection between the pipes 2 and a valve.

The main body 10 may be formed of the same material as the pipe 2 or different materials. In particular, since the main body 10 is configured so as not to be in contact with the pipe 2, even if the material is different from the pipe 2, the main body 10 can be used without fear of battery corrosion. In particular, the main body 10 may be formed of malleable cast iron having a low price and high durability. You can also ...

In the main body 10, a stepped portion 14 may be formed on an inner circumferential surface of the end portion of the pipe 2 so that a part of the end portion of the pipe 2 is inserted.

That is, the stepped portion 14 formed on the main body 10 may serve as a stopper when the main body 10 is coupled to the main body 10, thereby making the length of the pipe 2 inserted into the main body 10 constant.

In addition, the stepped portion 14 of the main body 10 is in close contact with the end surface of the pipe 2, the stepped portion 14 together with the sealing member 40, the airtight between the main body 10 and the pipe (2) I can keep it.

Here, when the insulating member 30 to be described later includes a protrusion 36, the stepped portion 14 of the main body 10 is a protrusion 36 of the insulating member 30 coupled to the end of the pipe (2) )

Meanwhile, when the main body 10 is formed of a material different from that of the pipe 2, in order to prevent battery corrosion due to contact between dissimilar metals, at least a part of the inner circumferential surface is formed of a coating part 16 coated with a synthetic resin material. It is preferable.

Since the direct contact with the pipe 2 is prevented by the insulating member 30 from the step portion 14 to the end of the pipe 2 of the flow passage 12 of the main body 10, the coating portion 16 is It is preferable that it is formed in the inner peripheral surface located inward of the step part 14 among the flow paths 12 of (10). In addition, the coating part 16 may have a polyethylene (P.E) material.

At least a portion of the inner circumferential surface of the main body 10 is tapered to form a tapered portion 18 to be in close contact with the insulating member 30, so that the main body 10 and the insulating member 30 are in close contact with each other so that the pipe 2 and The flow path 12 can be tightly sealed.

Since the tapered portion 18 of the main body 10 needs to be in close contact with the insulating member 30, it may be formed on some or all of the inner circumferential surface between the end of the main body 10 and the step portion 14.

When the tapered portion 18 is formed in the main body 10 as described above, the tapered portion 18 of the main body 10 is formed of the insulating member 30, that is, the insulating member 30 in the process of coupling with the fastening member 20. Since the second taper 34 is pressed and the pressurized insulating member 30 presses the outer circumferential surface of the pipe 2, the main body 10, the insulating member 30, and the pipe 2 are firmly adhered after assembly. Will be maintained.

On the other hand, the main body 10 is screwed with the fastening member 20, the screw portion 19 for screwing the fastening member 20 is formed on the inner peripheral surface of the pipe 2 side end of the main body 10. Here, the screw portion 19 is preferably treated with a dark (geometric) plating to prevent corrosion.

The fastening member 20 has the same material as that of the main body 10, and is screwed with the threaded portion 19 formed on the outer circumferential surface of the main body 10 to couple the main body 10 to the pipe 2 in various configurations. It is possible.

The fastening member 20 may have an insertion hole 22 formed therein so that the pipe 2 to which the insulating member 30 is coupled may be inserted.

In addition, the fastening member 20 may have a bolt-like shape to be assembled by a tool such as a pipe wrench, and an internal thread portion 22A for screwing with a screw 19 formed on an outer circumferential surface of the main body 10 on an inner circumferential surface thereof. Is formed.

Meanwhile, in the pipe fitting according to the present invention, the fastening member 20, the insulating member 30, and the main body 10 are sequentially inserted into the end of the pipe 2, and the fastening member 20 is screwed to the main body 10. Is assembled.

At this time, the fastening member 20 is moved toward the main body 10 by screwing with the main body 10, the fastening member 20 pipes the insulating member 30, the first taper 32 is formed (2) To the side.

Therefore, the fastening member 20 is moved toward the main body 10 to press the insulating member 30 to the outer peripheral surface of the pipe 2 together with the outer peripheral surface of the insulating member 30, so that the pipe 2 and The pipe fittings according to the invention can be connected to the pipe 2 without fear of leakage of the fluid flowing in the flow path 12.

On the other hand, the female screw portion 22A of the fastening member 20 is preferably plated with dark like the threaded portion 19 of the main body 10.

The insulating member 30 is a configuration that is interposed between the inner circumferential surface of the body 10 and the outer circumferential surface of the pipe 2 may be various configurations.

In particular, when the pipe 2 and the fastening member 20 have different metal materials, the pipe 2 and the fastening member 20 are installed to prevent the inner circumferential surface of the main body 10 and the outer circumferential surface of the pipe 2 from contacting each other.

On the other hand, the insulating member 30 is a main body from the pipe 2 so that the fastening member 20 presses the insulating member 30 toward the outer circumferential surface of the pipe 2 when the fastening member 20 is screwed with the main body 10. The first taper 32 formed to increase the outer diameter toward the 10 and the insulating member 30 toward the outer circumferential surface of the pipe 2 when the fastening member 20 is screwed with the main body 10. A second taper 34 formed to reduce the outer diameter may be formed while going from the pipe 2 toward the main body 10 so as to pressurize.

The insulating member 30 has the following excellent effects on the first taper 32 and the second taper 34.

First, when the fastening member 20 is moved toward the main body 10 by screwing with the main body 10, the fastening member 20 pipes the insulating member 30 on which the first taper 32 is formed. To the side.

Therefore, the fastening member 20 is moved toward the main body 10 so that the fastening member 20 contacts the first taper 32 of the insulating member 30 with the insulating member 30 to the outer circumferential surface of the pipe 2. Because of the pressure, the pipe fittings according to the present invention can be connected to the pipe 2 without fear of fluid leakage flowing in the pipe 2 and the flow path 12.

In this case, some of the inner circumferential surface of the fastening member 20 may correspond to the first taper 32 to form a tapered portion.

Meanwhile, when the fastening member 20 and the main body 10 are screwed together, the inner circumferential surface of the main body 10 presses the insulating member 30 on which the second taper 32 is formed.

Therefore, the body 10 is pressed by the coupling member 20 and the main body 10 together with the second taper 34 and presses the insulating member 30 to the outer circumferential surface of the pipe 2 so that the pipe 2 ) And the pipe fittings according to the invention can be connected to the pipe 2 without fear of leakage of the fluid flowing in the flow path 12.

At this time, some of the inner circumferential surface of the main body 20 may correspond to the second taper 34, so that the tapered portion 18 may be formed.

Meanwhile, the insulating member 30 may further include a protrusion 36 protruding toward the inner circumferential surface thereof so as to be in close contact with the end surface of the pipe 2.

The protrusion 36 serves as a stopper when the insulating member 30 is assembled, so that the insulating member 30 can be assembled to the pipe 2 accurately and easily.

The insulating member 30 is preferably formed of a flexible material to be in close contact with the pipe 2 and the fastening member 20, the main body 10 for airtightness.

In addition, the insulating member 30 pipes the fastening member 20 and the main body 10 so that corrosion does not occur even if the fastening member 20 and the main body 10 have a different material from that of the pipe 2. More preferably, it is formed of a material which can electrically insulate with (2).

Therefore, the insulating member 30 is preferably formed of a polyamide (nylon 6.6) material to have both durability, elasticity and insulation. For reference, polyamide is a hygienic engineering resin recognized by Japan Ministry of Health, Food and Welfare, and has excellent heat resistance, vibration resistance, and tensile strength.

On the other hand, between the insulating member 30 and the pipe 2 absorbs the expansion and contraction of the pipe (thermal expansion or contraction) due to the temperature change, and more reliably prevent leakage due to the gap between the insulating member 30 and the pipe (2). In order to further increase airtightness, at least one sealing member 40 may be interposed.

The sealing member 40 may be interposed anywhere if it can be interposed between the insulating member 30 and the pipe (2). In particular, the insulating member 30 is formed with a protrusion 36 corresponding to the thickness of the end of the pipe 2, the sealing member 40 is interposed between the protrusion 36 and the end surface of the pipe 2, thereby insulating The assembly of the member 30 can be made easier, and the assembly of the sealing member 40 is excellent.

In addition, as described above, since the interference between the insulating member 30 and the sealing member 40 is prevented, the sealing member 40 may be prevented from being pushed by the insulating member 30 when the insulating member 30 is assembled. Therefore, separation of the sealing member 40 is prevented, and the assembly property of the sealing member 40 is excellent.

The sealing member 40 is preferably formed in an O-ring structure to seal the entire circumference of the pipe (2).

The sealing member 40 may be any material as long as it can maintain the elastic expansion and airtightness of the pipe. However, the sealing member 40 may be formed of silicone rubber as an example in view of durability.

The non-slip member 50 is a configuration that is provided between the inner circumferential surface of the insulating member 30 and the outer circumferential surface of the pipe 2 in order to prevent the insulating member 30 from sliding in the longitudinal direction of the pipe (2). It is possible.

In particular, the anti-slip member 50 is installed between the inner circumferential surface of the insulating member 30 and the outer circumferential surface of the pipe 2 to prevent the insulating member 30 from sliding in the longitudinal direction of the pipe 2. Therefore, the use of a material different from the hardness of the insulating member 30 is preferable.

In particular, the non-slip member 50 is more preferably using a metal material higher than the hardness of the insulating member 30, for example, it is more preferable to use STS 304.

On the other hand, the non-slip member 50 is a strip-shaped member having a length smaller than the outer diameter of the 'C' shape, the pipe 2 so that it can be installed on the inner peripheral surface of the insulating member 30, the inner peripheral surface of the insulating member 30 Various configurations and structures are possible, such as being bent and inserted into a 'C' shape.

And the non-slip member 50 may be formed in one or more openings 51 in the radial direction to maximize the anti-slip effect.

The opening 51 may have a shape of at least one of a circle, an ellipse, a rectangle, a triangle, and a polygon.

In addition, the non-slip member 50 may be formed of a plurality of beads in addition to the opening.

In addition, the circumferential length of the non-slip member 50 is preferably formed smaller than the length of the circumference corresponding to the outer diameter of the pipe (2). Of course, the circumferential length of the non-slip member 50 is preferably a difference from the circumference corresponding to the outer diameter of the pipe 2 is smaller than 1 cm, more preferably smaller than 0.5 cm, even more preferably smaller than 3 mm. Do.

Meanwhile, when the non-slip member 50 is installed, it is difficult to insert the pipe 2, and the insulating member 30 has an inner diameter larger than the outer diameter of the pipe 2 at the end portion of the pipe 2 in the direction in which the pipe 2 is inserted. The non-slip member seating portion 35 may be formed.

In particular, the difference between the inner diameter of the non-slip member seating portion 35 and the outer diameter of the pipe 2 is preferably greater than or equal to the thickness t of the non-slip member 50.

In addition, the non-slip member seating portion 35 may be formed in an annular shape with a width corresponding to the shape of the outer circumferential surface of the non-slip member 50 or may be formed inward from the end portion as shown in FIG. 2.

On the other hand, the non-slip member 50 is a belt-shaped member having a length smaller than the outer diameter of the pipe 2 in the assembling process, 'C' on the inner circumferential surface of the insulating member 30, that is, the non-slip member seating portion 35 The end of the pipe 2 is inserted after it is bent and inserted into a shape. Here, the end of the pipe 2 is inserted into the fastening member 20, of course.

In addition, the non-slip member 50 is preferably installed in a depth (pipe length direction) of about 5 mm or more from the end of the insulating member 30 in order to increase the installation effect.

In other words, it is preferable that the non-slip member 50 has a position at the end of 5 mm or more in the pipe length direction from the end of the insulating member 30.

This is because when the non-slip member 50 is installed at a position smaller than 5 mm from the end of the insulating member 30, the insulating member 30 may be separated from the non-slip member 50.

Pipe fittings according to the present invention having the configuration as described above can be applied to any pipe as long as the fluid flow pipe, excellent corrosion resistance, durability, hygiene, airtightness, economics, etc. can be applied to drinking water pipes, fire pipes, gas pipes and the like. have.

As described above is only a pipe as a part of a preferred embodiment that can be implemented by the present invention, the scope of the present invention, as is well known is not limited to the above embodiment should not be interpreted, the present invention described above All of the technical ideas together with the technical idea of the base will be included in the scope of the present invention.

2: pipe 10: main body
20: fastening member 30: insulating member
50: non-slip member

Claims (13)

A main body fitted to an end of the metal pipe to form a flow path connected to the pipe;
A fastening member screwed with a threaded portion formed on an outer circumferential surface of the main body to couple the main body to the pipe and having the same material as the main body;
An insulating member interposed between the inner circumferential surface of the main body and the outer circumferential surface of the pipe;
And the non-slip member installed between the inner circumferential surface of the insulating member and the outer circumferential surface of the pipe to prevent the insulating member from sliding in the longitudinal direction of the pipe. The method according to claim 1,
The insulating member includes a first taper configured to increase an outer diameter from the pipe toward the main body so that the fastening member presses the insulating member toward the outer circumferential surface of the pipe when the fastening member is screwed with the main body. And a second taper formed to reduce an outer diameter while the main body pushes the insulating member toward the outer circumferential surface of the pipe when the screw is screwed with the main body to reduce the outer diameter. The method according to claim 1,
The insulating member
And a protrusion having one end protruding toward the inner circumferential surface so as to be in close contact with the end surface of the pipe. The method according to claim 1,
The insulating member is a pipe fitting, characterized in that the non-slip member seating portion having an inner diameter larger than the outer diameter of the pipe is formed at the end portion of the direction in which the pipe is inserted. The method of claim 4,
The pipe joint, characterized in that the difference between the inner diameter of the non-slip member seating portion and the outer diameter of the pipe is greater than or equal to the thickness of the non-slip member. The method according to claim 1,
The slip member is a pipe fitting, characterized in that STS 304. The method according to claim 1,
The non-slip member is a pipe fitting, characterized in that it has a 'C' shape. The method according to claim 1,
The non-slip member has a metal material and one or more openings are formed in a radial direction pipe fittings. The method according to claim 8,
And the opening has a shape of at least one of a circle and a polygon. The method according to claim 1,
The non-slip member is a strip-shaped member having a length smaller than the outer diameter of the pipe, characterized in that the pipe fitting is inserted into the inner circumferential surface of the insulating member bent in a 'C' shape. The method according to claim 1,
The non-slip member is a pipe fitting, characterized in that the position of the end is at least 5mm in the pipe longitudinal direction from the end of the insulating member. The method according to any one of claims 1 to 11,
The fastening member and the main body has the same metal material, and the pipe fitting, characterized in that the metal material different from the main body. The method of claim 12,
And the insulating member is installed to prevent the main body and the fastening member from contacting each other.
KR1020110064582A 2011-06-30 2011-06-30 Pipe connecting assembly KR20130003318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110064582A KR20130003318A (en) 2011-06-30 2011-06-30 Pipe connecting assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110064582A KR20130003318A (en) 2011-06-30 2011-06-30 Pipe connecting assembly

Related Child Applications (1)

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KR1020140088283A Division KR20140093206A (en) 2014-07-14 2014-07-14 Pipe connecting assembly

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KR20130003318A true KR20130003318A (en) 2013-01-09

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180016865A (en) * 2016-08-08 2018-02-20 (주)준성이엔씨 Pipe connecting assembly
KR102106164B1 (en) * 2019-08-06 2020-05-11 비케이엠 주식회사 Adapter for Pipe Connecting in Gastight Condition
WO2020138609A1 (en) * 2018-12-27 2020-07-02 (주)준성이엔씨 Pipe coupler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180016865A (en) * 2016-08-08 2018-02-20 (주)준성이엔씨 Pipe connecting assembly
WO2020138609A1 (en) * 2018-12-27 2020-07-02 (주)준성이엔씨 Pipe coupler
KR102106164B1 (en) * 2019-08-06 2020-05-11 비케이엠 주식회사 Adapter for Pipe Connecting in Gastight Condition

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