KR20170046010A - Connecting structure of coupling pipe - Google Patents

Connecting structure of coupling pipe Download PDF

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Publication number
KR20170046010A
KR20170046010A KR1020150146270A KR20150146270A KR20170046010A KR 20170046010 A KR20170046010 A KR 20170046010A KR 1020150146270 A KR1020150146270 A KR 1020150146270A KR 20150146270 A KR20150146270 A KR 20150146270A KR 20170046010 A KR20170046010 A KR 20170046010A
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KR
South Korea
Prior art keywords
pipe
fastener
fastening
fastener body
rubber ring
Prior art date
Application number
KR1020150146270A
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Korean (ko)
Other versions
KR101783524B1 (en
Inventor
이종태
이일행
황기웅
Original Assignee
피피아이평화 주식회사
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Priority to KR1020150146270A priority Critical patent/KR101783524B1/en
Publication of KR20170046010A publication Critical patent/KR20170046010A/en
Application granted granted Critical
Publication of KR101783524B1 publication Critical patent/KR101783524B1/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
    • F16L21/00—Joints with sleeve or socket
    • F16L21/06—Joints with sleeve or socket with a divided sleeve or ring clamping around the 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
    • F16L17/00—Joints with packing adapted to sealing by fluid pressure
    • F16L17/02—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
    • 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
    • F16L21/00—Joints with sleeve or socket
    • F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
    • 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
    • F16L21/00—Joints with sleeve or socket
    • F16L21/08—Joints with sleeve or socket with additional locking means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Joints With Sleeves (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pipe connecting structure of a connecting pipe, and more particularly to a pipe connecting structure of a connecting pipe tightly fastened to a PVC pipe and having excellent water tightness and workability.
The pipe connection structure of the connection pipe according to the present invention includes a body 101 having a predetermined number of insertion openings 103 for inserting the pipe 10 therein; A fastener catching protrusion 105 protruding outward from an end of the insertion port 103; A fastener body 210 formed in a ring shape and partially open and open at each end thereof and having an engaging rib 211 to be fastened to the fastener body 210 through a fastening bolt 215; A body catching protrusion 212 protruding inward from one end of the fastener body 210 and contacting the fastener catching protrusion 105; A rubber ring 220 inserted into the fastener body 210; And a pressure wheel 230 which is formed in an arc shape and inserted between the rubber ring 220 and the fastener body 210 to prevent the rubber ring 220 from being damaged in the process of fastening the fastener body 210 .

Description

Connecting structure of coupling pipe [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pipe connecting structure of a connecting pipe, and more particularly to a pipe connecting structure of a connecting pipe tightly fastened to a PVC pipe and having excellent water tightness and workability.

Generally, a pipe is used for transporting a fluid such as a liquid or a gas, and it is produced in a predetermined length unit when a pipe is produced in a factory for convenient transportation and storage.

These pipes can be used to connect pipes and pipes using a connecting pipe when constructing, to form various curved flow paths, to form an 'L' shape, a 'Y' shape, a 'T' shape Various connectors are used.

1, the pipe 10 is inserted into the pipe-opening portion 21 of the connecting pipe 20, and the rubber and the rubber are connected to each other for water tightness and rigid connection of the pipe. The pipe 40 is connected and fixed by using the ring 40 and the cap 30.

1, the pipe connecting structure of a conventional PVC connector pipe is formed with an enlarged tube portion 21 having a larger inner diameter at a portion of the connecting tube 20 into which the pipe 10 is inserted, And the cap 30 is screwed to the outer surface of the expanded portion 21 of the connection pipe 20 while the rubber ring 40 is inserted into the outer surface of the pipe 10, (10) is fastened.

When the cap 30 is screwed to the outer surface of the expansion tube 210 of the connection tube 20 as described above, the cap 30 moves along the screw 22 formed on the outer surface of the expansion tube 21 of the connection tube 20 1, the compression fitting 32 formed inside the cap 30 comes close to the end of the expansion tube 21 of the connection tube 20. At this time, the end of the expansion tube 21 of the connection tube 20 The rubber ring 40 located between the compression fittings 32 of the cap 30 is compressed and the rubber ring 40 is elastically deformed so that the outer surface of the pipe 10 is strongly pressed to fix the pipe 10, .

The conventional coupling structure of the coupling pipe 20 is constructed such that when the pipe 10 is fastened, the cap 30 and the rubber ring 40 are separated from the coupling pipe 20 and inserted into the outer surface of the pipe 10 to be coupled. The pipe 10 is inserted into the expansion portion 21 of the connection pipe 20 and the cap 30 is rotated to be screwed with the expansion portion 21 so that the connection pipe 20 and the pipe 10 ) The fastening operation is very complicated and takes a long time.

In addition, when the cap 30 is tightened using a tool for strongly rotating the cap 30, if the piping operation is performed in a narrow space, the connection operation is very inconvenient or the operator can not use the tool at all, 30) are tightened to often cause a failure in fastening.

In addition, there is a problem that the rubber ring 40 is torn or deformed during the process of tightening the cap 30, thereby lowering the water tightness.

Korean Patent Registration No. 10-1512940, "Connection Structure of Piping for Water Supply"

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a pipe connecting structure for a pipe, which has excellent fastening force and maintains high water tightness when pipes are fastened to various connection pipes such as 'L' It is an object of the present invention to provide a pipe fastening structure for a connection pipe having excellent workability by allowing a pipe to be easily and quickly fastened to a connection pipe.

In order to accomplish the above object, the pipe connection structure of a connector according to the present invention includes a body 101 having a predetermined number of insertion openings 103 for inserting a pipe 10 therein; A fastener catching protrusion 105 protruding outward from an end of the insertion port 103; A fastener body 210 formed in a ring shape and partially open and open at each end thereof and having an engaging rib 211 to be fastened to the fastener body 210 through a fastening bolt 215; A body catching protrusion 212 protruding inward from one end of the fastener body 210 and contacting the fastener catching protrusion 105; A rubber ring 220 inserted into the fastener body 210; And a pressure wheel 230 which is formed in an arc shape and inserted between the rubber ring 220 and the fastener body 210 to prevent the rubber ring 220 from being damaged in the process of fastening the fastener body 210 .

The pressure roller 230 is positioned between the rubber ring 220 and the portion where the coupling rib 211 of the fastener body 210 is formed.

A fixing protrusion 213 protrudes from the outer surface of the fastener body 210. A fixing groove 231 is formed in the pressure roller 230 so that the fixing protrusion 213 of the fastener body 210 is rotated 9230, respectively, to fix the pressure roller (230).

The rubber ring 220 has a ring-shaped body 221, a first contact piece 231 protruding inward from one side of the body 221 and closely contacting the outer surface of the tube-shaped portion 102 of the connection tube 100, (222); And a second contact piece 223 protruding inward from the other end of the body 221 and closely contacting the outer surface of the pipe 100.

The center of the body 221 of the rubber ring 220 protrudes in the form of a wall in the inward direction so that the end of the insertion port 103 of the connection pipe 100 is in contact with the side surface and the end of the connection pipe 100 is in contact with the outer surface of the pipe 10 And is configured to maintain the watertightness and fix the pipe (10).

In addition, the fastener body 210 is formed in a ring shape by a metal material, and is partially opened. A coupling rib 241 is formed at each end of the opened portion, and is fastened to the fastener body 210 at the outer surface thereof And is fastened together with the fastener body 210 through fastening bolts 215.

A pipe fixing fastening protrusion 214 protruding in the axial direction of the fastening body 210 and having an end protruded upward is formed at one side of the fastening body 210, And a coupling groove 252 is formed in the center of the coupling groove 252 to insert the pipe fastener fastening protrusion 214 into the middle portion of the coupling rib 2510, One of the side walls protrudes more than the other side walls and a sharp spike 254 is formed at the end thereof so that the spike 254 is tightened by the fastening bolt 253, (10) is fixed to an outer surface of the pipe (10) to fix the pipe (10) to the connection pipe (100).

The fastening bolt 215 is inserted into the coupling rib 211 of the fastening body 210 and fastened to the anchor bolt 21 fixed to the ceiling, And the protruding fastening bolts 215 are fastened to the fastening bolt 20.

The pipe connecting structure of the connecting pipe according to the present invention having the above-described structure is excellent in fastening force and can maintain high water tightness when pipes are fastened to various connecting pipes such as 'L' shape, 'Y' shape and 'T' , It is possible to fasten the pipe to the connecting pipe with a simple and quick fastness, so that the workability is excellent, and maintenance and repair are easy.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a conventional connection pipe pipe fastening structure. Fig.
2 is a perspective view showing a state where a pipe is fastened to a connection pipe according to the present invention;
3 is an exploded perspective view showing a pipe connection structure of a connection pipe according to the present invention.
4 and 5 are cross-sectional views illustrating a connection pipe connection structure according to the present invention.
6 is a view showing a state where a connection pipe according to the present invention is fastened to a hanger;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which like reference numerals refer to like elements.

It is to be understood that when an element is referred to as being "comprising" another element in the description of the invention or in the claims, it is not to be construed as being limited to only that element, And the like.

As shown in FIG. 2, the pipe connection structure according to the present invention includes a connection pipe body 101 of various shapes such as 'I' shape, 'L' shape, 'Y' shape, and 'T' shape, A fastener 200 is formed in the insertion port 103 of the connector body 101 so that the pipe 10 is inserted into the connector body 101 to be fastened.

The connection pipe body 101 is formed in various shapes such as various shapes such as 'I' shape, 'L' shape, 'Y' shape, and 'T' shape, and the pipe 10 is connected to the connection pipe body 101 An insertion opening 103 for inserting the pipe 10 is formed in the insertion opening 103 and an expansion portion 102 is formed at the entrance of the insertion opening 103 so that the inside diameter becomes wider.

A ring-shaped stopper 104 protruding inward is formed on the inner surface of the expanded portion 102 so that the end of the pipe 10 is caught by the stopper 104 when the pipe 10 is inserted, (103).

A ring-shaped fastening protrusion 105 protrudes outwardly from the outer surface of the end of the tube portion 102 so that the fastening tool 200 is coupled to the connection tube body 101.

As shown in FIG. 3, the fastener 200 for fastening and fastening the pipe 10 inserted into the insertion port 103 of the connector body 101 includes the fastener body 210, the fastener body 210 A rubber ring 220 inserted in the interior of the fastener body 210 to maintain watertightness and a roller 230 inserted between the fastener body 210 and the rubber ring 220.

The fastener body 210 has a ring shape and is partially opened to form a 'C' shape, and at the opened end thereof, an outwardly projecting engagement rib 211 is formed.

A body catching protrusion 212 protruding into the body 210 of the fastening body 210 is formed at one side of the fastening body 210 to open the open part of the fastening body 210, The fastening hole 105 formed on the tube portion 102 of the connector body 101 and the body fastening portion 212 of the fastener body 210 are engaged with each other to form the connecting tube body 101, So that the fastener body 210 is fixed.

A ring-shaped rubber ring 220 is inserted into the fastener 210. As shown in FIG. 5, the cross-sectional shape of the rubber ring 220 includes a body 221 in the form of a flat plate And a first contact piece 222 and a second contact piece 223 protruding inward from both ends of the body 221 are formed and a holder 221 protruding inward from a center portion of the body 221 224 are formed.

The rubber ring 220 is inserted into the fastener body 210 to seal the gap between the connection pipe 100 and the pipe 10 to ensure watertightness and the pipe 10 is connected to the connection pipe 100 It serves to fix it so that it does not fall out.

When the rubber ring 220 is inserted into the fastener body 210 and the fastening bolt 215 is inserted into the fastening body 211 of the fastener body 210 and fastened with a nut, And the inner rubber ring 220 is squeezed as the opened gap is tightened.

The rubber ring 220 is squeezed and the holder 224 protruding from the central portion of the rubber ring 220 presses the outer surface of the pipe 10 as shown in FIG. 5 so that the pipe 110 comes off the connection pipe body 101 .

The holder 224 is brought into close contact with the outer surface of the pipe 10 and the first contact piece 222 of the rubber ring 220 is brought into close contact with the outer surface of the tube portion 102 of the connecting tube body 101, The second tight contact piece 223 is closely attached to the outer surface of the pipe 10 to close the gap between the connection pipe 100 and the pipe 10 to maintain watertightness.

As described above, when the fastening bolt 215 fastened to the fastening body 211 of the fastening body 210 is tightened, the gap of the fastening body 210 is narrowed and the inner rubber ring 220 is compressed The rubber ring 220 is crushed while the rubber ring 220 is inserted into the gap formed in the fastener body 210 in the process of narrowing the fastener body 210 and the rubber ring 220 is crushed and the water tightness is hampered Often occurs.

3 and 4, the outer surface of the body 221 of the rubber ring 220 and the inner surface of the fastener body 210 having the fastening ribs 211 are formed between the outer surfaces of the body 221 of the rubber ring 220, The rubber ring 220 is prevented from being inserted into the gap formed in the fastener body 210 when the gap between the fastener body 9210 and the fastener body 9210 is narrowed by inserting the circular ring- It is desirable to prevent breakage and to maintain high watertightness.

3, the pressure wheel 230 is inserted between the rubber ring 220 and the fastener body 210 formed with the engaging rib 211, and then the pipe 230 is fastened and fixed There is a need for a fixing means capable of fixing the pressure wheel 230 since the pressure wheel 230 may be moved from the part of the coupling rib 211 to prevent the rubber ring 220 from chewing.

3 and 4, a fixing protrusion 213 is protruded from the outer surface of the fastener body 210 and the fixing protrusion 213 is inserted into the pressure wheel 230 (231) so that the rollers (230) can not move.

The fastener body 210 is formed of a synthetic material so as to narrow the gap formed by the fastening bolt 215. In order to prevent the fastener body 210 from being damaged in the process of narrowing the gap, The steel band 240 formed in the same shape as the outer surface of the fastener body 210 is fastened to the outer surface of the fastener body 210 by forming a fastening rib 241 on a part of the fastener body 210, Thereby preventing the fastener body 210 from being broken.

As described above, the rubber ring 220 inserted into the fastener body 210 compresses and fixes the outer surface of the pipe 10 so as to maintain watertightness and prevent the pipe 10 inserted in the connection pipe 100 from being dislodged , And in the case of a high-pressure fluid pipe, the pipe 10 may be pulled out of the coupling pipe 100 by the pressure of the fluid.

In order to solve this problem, as shown in Figs. 3 and 5, a pipe fastener fastening protrusion 214 is formed on one side of the fastener body 210 and extends in the axial direction of the pipe 10 and has an end protruding upward , The pipe fixture (250) is fastened to the pipe fixture fastening protrusion (214) so that the pipe (10) can be prevented from being dislodged by the pressure of the fluid.

As shown in FIGS. 2 and 5, the pipe fixture 250 is formed in the shape of a ring made of metal, and a part of the pipe fixture 250 is opened and a coupling rib 251 is formed in an open portion. Shaped in cross section of the parabolic fixture 250 so that a locking groove 252 is formed between the upright walls and one of the side walls on both sides of the locking groove 252 is formed to be longer, A spike 254 is formed.

So that the pipe fastener fastening protrusion 214 is inserted into the fastening groove 252 of the pipe fastener 250 so as to surround the pipe fastener fastener protrusion 214 of the fastener body 210 The spikes 254 of the pipe fixture 250 are inserted into the outer surface of the pipe 10 inserted into the connection pipe 100 to fix the pipe 10.

Since the pipe 10 is formed of a synthetic resin such as PVC, the sharp spike 254 of the pipe fixture 250 is easily stuck on the outer surface of the pipe 10.

1, the cap 30 and the rubber ring 40 are separated from the coupling pipe 20 and inserted into the outer surface of the pipe 10 to be coupled, The pipe 20 is inserted into the pipe tube 21 of the connecting pipe 20 and the cap 30 is rotated to be screwed with the pipe tube 21, It takes a lot of time.

In the meantime, according to the present invention, the coupling bolt 215 of the coupling rib 211 of the fastener body 210 is not fastened in a state where the fastener body 210 is previously fastened. The pipe 10 is fastened and fixed with high water tightness by tightening only the fastening bolt 215 of the fastener body 9210 after inserting the pipe 10 into the fastener 103.

In addition, the conventional connection pipe 20 shown in FIG. 1 is required to tighten the cap 30 by using a tool for strongly rotating the cap 30. However, if the piping operation is performed in a narrow space, The operator can not use the tool at all, and the operator must tighten the cap 30. However, since the present invention does not require any special tool and only the fastening bolt 215 of the fastener body 210 is fastened by the screwdriver, The piping work can be easily performed.

6, a fastening bolt 215 is fastened to the hanger 20 attached to the anchor bolt 21 formed on the ceiling, The ceiling piping work can be easily done simply by tightening.

The technical idea of the present invention has been described above with reference to the embodiments.

It will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described above from the description of the present invention.

Further, although not explicitly shown or described, those skilled in the art can make various modifications including the technical idea of the present invention from the description of the present invention Which is still within the scope of the present invention.

The above-described embodiments described with reference to the accompanying drawings are for the purpose of illustrating the present invention, and the scope of the present invention is not limited to these embodiments.

10: pipe 100: connector
101: body 102:
103: insertion port 104: stopper
105: Fastening jaw
200: fastener 210: fastener body
211: engaging rib 212: body jaw jaw
213: fixing protrusion 214: pipe fixing hole fixing protrusion
215: fastening protrusion 220: rubber ring
221: body 222: first contact piece
223: second tight contact piece 224: holder
230: Pressure roller 231: Fixing groove
240: steel band 241: engaging rib
250: pipe fixture 241: engaging rib
252: fastening groove 253: fastening bolt
254: Spike

Claims (8)

A body 101 formed with a predetermined number of insertion ports 103 for inserting the pipe 10;
A fastener catching protrusion 105 protruding outward from an end of the insertion port 103;
A fastener body 210 formed in a ring shape and partially open and open at each end thereof and having an engaging rib 211 to be fastened to the fastener body 210 through a fastening bolt 215;
A body catching protrusion 212 protruding inward from one end of the fastener body 210 and contacting the fastener catching protrusion 105;
A rubber ring 220 inserted into the fastener body 210; And
And a pressure wheel 230 that is formed in an arc shape and inserted between the rubber ring 220 and the fastener body 210 to prevent the rubber ring 220 from being damaged in the process of fastening the fastener body 210 And a pipe connecting structure of the connecting pipe.
The method according to claim 1,
Wherein the pressure roller is configured to be positioned between the rubber ring and the portion where the coupling ribs of the fastener body are formed.
3. The method of claim 2,
Fixing protrusions 213 protrude from the outer surface of the fastener body 210,
A fixing groove 231 is formed in the pressure wheel 230 so that the fixing protrusion 213 of the fixing body 210 is inserted into the fixing groove 231 of the pressure wheel 230 to fix the pressure wheel 230 Characterized by the pipe connection structure of the connector.
The method according to claim 1,
The rubber ring (220)
A ring-shaped body 221;
A first contact piece 222 protruding inwardly from one end of the body 221 to be in close contact with an outer surface of the expanded portion 102 of the connection pipe 100;
And a second tight contact piece (223) protruding inward from the other end of the body (221) to closely contact the outer surface of the pipe (100).
The method according to claim 1,
The center of the body 221 of the rubber ring 220 protrudes in an inner wall shape so that the end of the insertion port 103 of the connection pipe 100 is in contact with the side surface and the end of the connection pipe 100 is in contact with the outer surface of the pipe 10, And the pipe (10) is fixed.
The method according to claim 1,
The fastener body 210 includes:
And a coupling rib 241 is formed at each end of the opened portion to be fastened to the outer surface of the fastener body 210 and fastened to the fastener body 200 through the fastener bolt 215. [ Is tightened together with the pipe (210).
The method according to claim 1,
A pipe fastener fastening protrusion 214 protruding in the axial direction of the fastener body 210 and having an end protruding upward is formed on one side of the fastener body 210,
An engaging rib 2510 is formed which is open at a part of the ring shape to be opened and coupled with a fastening bolt 253,
The pipe fixing fastening protrusion (214) is formed in a middle part of the cross section in the shape of '∩'. Both sides of the fastening protrusion (252) protrude inwardly from the inner wall And the spikes 254 are formed at the end portions so as to be tightened by the fastening bolts 253 so that the spikes 254 are stuck to the outer surface of the pipe 10 to fix the pipe 10 to the connection pipe 100 Wherein the pipe connection structure of the connector pipe is characterized in that:
The method according to claim 1,
The fastening bolt 215 is inserted and fastened to the fastening rib 211 of the fastening body 210 and protrudes outside the fastening rib 211,
Wherein the protruding fastening bolt (215) is fastened to the hanger (20) fastened to the anchor bolt (21) fixed to the ceiling.
KR1020150146270A 2015-10-20 2015-10-20 Connecting structure of coupling pipe KR101783524B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150146270A KR101783524B1 (en) 2015-10-20 2015-10-20 Connecting structure of coupling pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150146270A KR101783524B1 (en) 2015-10-20 2015-10-20 Connecting structure of coupling pipe

Publications (2)

Publication Number Publication Date
KR20170046010A true KR20170046010A (en) 2017-04-28
KR101783524B1 KR101783524B1 (en) 2017-10-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200493534Y1 (en) 2019-11-26 2021-04-16 피피아이 주식회사 Pipe connecting structure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200206360Y1 (en) * 2000-07-28 2000-12-01 주식회사아세아조인트 Structure of pipe joint
JP3531147B2 (en) * 2002-01-18 2004-05-24 株式会社川西水道機器 Pipe separation prevention device and plastic ring for union nut joint
JP4291305B2 (en) * 2005-07-20 2009-07-08 株式会社協栄ファスナー工業 Elastic structure of hose clamp
KR200438817Y1 (en) * 2007-11-26 2008-03-06 주식회사 제일테크 Duct connecting band with hanger function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200493534Y1 (en) 2019-11-26 2021-04-16 피피아이 주식회사 Pipe connecting structure

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