WO2019231148A1 - Pipe including flexible joint part - Google Patents

Pipe including flexible joint part Download PDF

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Publication number
WO2019231148A1
WO2019231148A1 PCT/KR2019/005907 KR2019005907W WO2019231148A1 WO 2019231148 A1 WO2019231148 A1 WO 2019231148A1 KR 2019005907 W KR2019005907 W KR 2019005907W WO 2019231148 A1 WO2019231148 A1 WO 2019231148A1
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WO
WIPO (PCT)
Prior art keywords
pipe
joint
coupling
sealing
longitudinal direction
Prior art date
Application number
PCT/KR2019/005907
Other languages
French (fr)
Korean (ko)
Inventor
신영석
Original Assignee
Shin Young Suk
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 Shin Young Suk filed Critical Shin Young Suk
Publication of WO2019231148A1 publication Critical patent/WO2019231148A1/en

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Classifications

    • 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
    • F16L21/035—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 placed around the spigot end before connection
    • 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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
    • 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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
    • F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
    • 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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
    • 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
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/18—Adjustable joints; Joints allowing movement
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/935—Seal made of a particular material
    • Y10S277/944—Elastomer or plastic

Definitions

  • the present invention relates to a pipe including an elastic joint, and more particularly, since the sealing can be maintained even in a shape deformation such as shrinkage or expansion of a pipe formed of a plastic resin series, it is possible to prevent leakage of fluid flowing therein. It relates to a pipe including a flexible joint.
  • Pipes formed of plastic resin series are not corrosive and easy to injection molding, so they can be easily manufactured, and have excellent durability and are widely used for pipes buried underground.
  • the pipe formed of a plastic resin series can be used semi-permanently because the corrosion is hardly generated as compared to the pipe formed of a steel material.
  • 1 is a view showing an example of a method for connecting the pipes (1) formed of a plastic resin series to each other.
  • a joint part 2 surrounding the pipe 1 is provided, and the joint parts 2 are screwed together.
  • the pipes 1 can be connected to each other.
  • the pipe 1 formed of a plastic resin series may expand or contract according to temperature change, or the shape of the pipe 1 may be deformed due to factors (humidity, earthquake, etc.) of the external environment such as the ground.
  • the object of the present invention is a pipe including a pipe formed of a plastic resin series, and a joint formed to connect the pipe to each other, the contraction of the pipe or It is to provide a pipe including a flexible joint that can maintain the coupling with the joint even when the shape is deformed, such as expansion, and maintain the sealing, thereby preventing the leakage of fluid flowing therein.
  • the pipe including the flexible joint is a pipe including a pipe 100 formed of a plastic resin series, and a pipe including a joint 200 coupled to surround the pipe 100 and connecting the pipe 100.
  • the pipe body 110 is formed to be hollow in the longitudinal direction, and protrudes so that the inner diameter is increased at at least one end of the longitudinal direction of the pipe body 110;
  • a sealing part 130 formed of a material having elasticity in the stepped part 120 and the sealing groove 121 formed on the circumferential surface of the stepped part 120.
  • the sealing part 130 is characterized in that it comprises a concave-convex portion 131 protruding to the outside of the sealing groove 121.
  • the uneven portion 131 is characterized in that formed at least two or more spaced apart in the longitudinal direction.
  • sealing unit 130 is characterized in that formed of acrylonitrile-butadiene rubber (NBR).
  • NBR acrylonitrile-butadiene rubber
  • the joint body 210 is formed in two in the center in the longitudinal direction, it characterized in that it further comprises a coupling portion 211 is coupled to each other by interview.
  • the joint body 110 is characterized in that it further comprises a coupling auxiliary portion 212 protruding on the circumferential surface of the coupling portion 211.
  • a pipe formed of a plastic resin series and a pipe including a joint formed to connect the pipes to each other may be coupled to the joint even when the pipe is deformed or expanded.
  • the pipe including the flexible joint according to the present invention can maintain the seal and maintain the coupling to the joint even in the shape deformation, such as shrinkage or expansion of the pipe, it is possible to prevent the leakage of fluid flowing inside There is an advantage.
  • the piping including the flexible joint according to the present invention while maintaining the coupling with the joint even in the shape deformation of the pipe. Since the sealing can be maintained, the maintenance period of the pipe can be increased, so that the use and management of the pipe can be efficiently performed.
  • FIG. 2 is a perspective view of a pipe including an elastic joint according to a first embodiment of the present invention
  • FIG. 3 is a sectional view showing a pipe including an elastic joint according to a first embodiment of the present invention
  • FIG. 4 is a cross-sectional view of a sealing portion of a pipe including an elastic joint according to a first embodiment of the present invention
  • FIG. 5 is a cross-sectional view of a pipe including an elastic joint according to a second exemplary embodiment of the present invention.
  • FIG. 6 is a sectional view showing a sealing portion of a pipe including an elastic joint according to a second embodiment of the present invention.
  • FIG. 7 is a cross-sectional view of a pipe including an elastic joint according to a third exemplary embodiment of the present invention.
  • FIG. 2 is a view showing a pipe including a flexible joint according to a first embodiment of the present invention in a perspective view
  • Figure 3 is a view showing a pipe including a flexible joint according to a first embodiment of the present invention in a cross-sectional view
  • 4 is a cross-sectional view illustrating a sealing part of a pipe including an elastic joint part according to a first exemplary embodiment of the present invention.
  • the pipe including the stretchable joint according to the first embodiment of the present invention is formed of a plastic resin series, and is hollow in the longitudinal direction so that the fluid is flowable therein. And, it is coupled to surround the pipe 100 is connected to the pipe 100, and comprises a joint 200 to enable the flow of fluid through the connection of the pipe 100.
  • the pipe 100 includes a pipe body 110, a stepped part 120, and a sealing part 130.
  • Pipe body 110 is formed to have a selected outer diameter and length, it is formed to be hollow in the longitudinal direction so that the fluid can flow.
  • the stepped part 120 is formed to protrude so that an inner diameter increases at least one or more end portions in the longitudinal direction of the pipe body 110.
  • the sealing unit 130 is made of an elastic material in the sealing groove 121 formed on the circumferential surface of the stepped part 120.
  • the joint part 200 largely includes a joint body 210 and a locking part 220.
  • the joint body 210 is formed to have an inner diameter corresponding to the outer diameter of the stepped part 120 and a selected length, and is formed so as not to interfere with the flow of the fluid flowing through the pipe 100 by being hollow in the longitudinal direction.
  • the locking part 220 is formed to have an inner diameter corresponding to the outer diameter of the pipe body 110 at both ends in the longitudinal direction of the joint body 210.
  • the pipe body 110 is inserted into the joint body 210, and the stepped part 120 of the pipe 100 is caught.
  • the pipe body 110 may be prevented from being separated in the longitudinal direction from the joint body 210 by the part 120.
  • the pipe body 110 or the joint body 210 is damaged by the expansion and contraction of the sealing body 130 even when the pipe body 110 or the joint body 210 is separated from the position by the sealing unit 130 It is possible to prevent the leakage of the fluid to the outside as well as to prevent it.
  • pipe 100 and the joint part 200 formed of a plastic resin series have advantages in that they can be used semi-permanently, they are expanded or contracted by rising or falling temperatures.
  • the pipe body 110 or the joint body 210 is contracted or contracted by a sealing part 130 formed of a material having elasticity.
  • a sealing part 130 formed of a material having elasticity.
  • the sealing unit 130 is preferably formed of various materials if the elasticity is excellent and easy to seal, more preferably, the sealing unit 130 is made of acrylonitrile-butadiene rubber (NBR) material It is preferably formed.
  • NBR acrylonitrile-butadiene rubber
  • Acrylonitrile butadiene rubber has less odor than vinyl chloride-based materials and has long durability due to its high durability. Therefore, acrylonitrile butadiene rubber is applied to pipes buried underground, so it does not require long-term maintenance. .
  • FIG. 5 is a cross-sectional view of a pipe including an elastic joint according to a second embodiment of the present invention
  • FIG. 6 is a cross-sectional view of a sealing part of a pipe including an elastic joint according to a second embodiment of the present invention. to be.
  • the sealing part 130 of the pipe 1000 including the flexible joint part according to the second embodiment of the present invention protrudes out of the sealing groove 121 and is formed of the uneven part 131. It further includes.
  • the uneven portion 131 protrudes to the outside of the sealing groove 121 to increase the coupling with the joint body 210, so that the sealing between the stepped portion 120 and the joint body 210 can be more firmly performed. Can be.
  • the shape of the uneven portion 131 may be a variety of embodiments without limitation, if the sealing between the stepped portion 120 and the joint body 210 can be performed firmly, but the elasticity according to the second embodiment of the present invention
  • the sealing portion 130 of the pipe 1000 including the joint portion is formed so that the uneven portion 131 is protruded at least two or more apart in the longitudinal direction, thereby performing the sealing in two or more, and the stepped portion 120 and It is preferable to minimize the leakage of the fluid flowing inside by further strengthening the coupling between the joint body (210).
  • FIG. 7 is a cross-sectional view of a pipe including an elastic joint according to a third exemplary embodiment of the present invention.
  • the joint body 210 of the pipe 1000 including the flexible joint according to the third embodiment of the present invention is formed in two in the longitudinal direction, and is coupled to each other by being interviewed with each other. It further comprises.
  • the joint body 210 is formed in two in the longitudinal center, thereby inserting the pipe body 110 from the inside, so that the stepped portion 120 of the pipe 100 is the engaging portion 220 of the joint portion 200. After the coupling is coupled to the joint body 110 and the pipe body 120 is performed, the joint body 210 is connected to each other through the coupling portion 211 to form the joint portion 200. Can be.
  • the joint body 210 is preferably coupled to each other through fusion through the coupling portion 211 which is a surface bonded to each other, but various embodiments of the coupling between the joint body 210 is not limited.
  • the joint body 110 may further include a coupling auxiliary part 212 formed on the circumferential surface of the coupling part 111.
  • Coupling assistant 212 is formed to protrude on the circumferential surface of the coupling portion 211, when coupling between the joint body 210, to facilitate the joining operation for the operator, the coupling assistant 212 By further solidifying the coupling between the joint body 210, it is possible to prevent the fluid flowing inside the joint body 210 to leak.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints Allowing Movement (AREA)

Abstract

The present invention relates to a pipe including a flexible joint part and, more specifically, to a pipe including a flexible joint part, the pipe being capable of maintaining a sealing despite shape deformation such as the contraction or expansion of the pipe, which is made from plastic resin-based materials, thereby enabling the leakage of fluid flowing therein to be prevented.

Description

신축성 이음부를 포함하는 배관Tubing with flexible joints
본 발명은 신축성 이음부를 포함하는 배관에 관한 것으로서, 더욱 상세하게는 플라스틱 수지 계열로 형성되는 파이프의 수축 또는 팽창 등 형상 변형에도 실링을 유지할 수 있으므로, 내부를 유동하는 유체의 누출을 방지할 수 있는 신축성 이음부를 포함하는 배관에 관한 것이다.The present invention relates to a pipe including an elastic joint, and more particularly, since the sealing can be maintained even in a shape deformation such as shrinkage or expansion of a pipe formed of a plastic resin series, it is possible to prevent leakage of fluid flowing therein. It relates to a pipe including a flexible joint.
플라스틱 수지 계열로 형성되는 배관은 부식성이 없고 사출성형이 용이하여 수월하게 제조 가능할 뿐만 아니라, 내구성 또한 뛰어나 지하 등에 매몰되는 배관에 널리 이용되고 있다.Pipes formed of plastic resin series are not corrosive and easy to injection molding, so they can be easily manufactured, and have excellent durability and are widely used for pipes buried underground.
특히, 플라스틱 수지 계열로 형성되는 배관은 강 재질로 형성되는 배관에 비해 부식이 거의 발생하지 않으므로 반영구적으로 사용할 수 있다.In particular, the pipe formed of a plastic resin series can be used semi-permanently because the corrosion is hardly generated as compared to the pipe formed of a steel material.
도 1은 플라스틱 수지 계열로 형성되는 배관(1)을 서로 연결하기 위한 방법의 일 예를 나타낸 도면이다.1 is a view showing an example of a method for connecting the pipes (1) formed of a plastic resin series to each other.
도 1을 참조하면, 종래의 플라스틱 수지 계열로 형성되는 배관(1)을 서로 연결하기 위해서는 배관(1) 주위를 감싸는 이음부(2)를 구비하고, 이음부(2)를 서로 나사 결합 등을 통해 결합하거나, 이음부(2)와 배관(1) 사이를 전기융착 등을 통해 결합함으로써, 배관(1)을 서로 연결할 수 있다.Referring to FIG. 1, in order to connect the pipes 1 formed of a conventional plastic resin series to each other, a joint part 2 surrounding the pipe 1 is provided, and the joint parts 2 are screwed together. By coupling through, or by coupling between the joint portion 2 and the pipe 1 through electrofusion, etc., the pipes 1 can be connected to each other.
그러나 플라스틱 수지 계열로 형성되는 배관(1)은 온도의 변화에 따라 팽창 또는 수축하거나, 지반 등 외부환경의 요인(습도, 지진 등)에 의해 형상이 변형될 우려가 있다.However, the pipe 1 formed of a plastic resin series may expand or contract according to temperature change, or the shape of the pipe 1 may be deformed due to factors (humidity, earthquake, etc.) of the external environment such as the ground.
즉, 플라스틱 수지 계열로 형성되는 배관(1)을 나사이음 또는 전기융착을 통해 서로 연결된 상태에서, 온도의 변화에 따른 팽창 또는 수축 및 지진 등에 의해 배관(1)의 형상이 변형될 경우, 고정적인 결합에 의해 연결부위의 갈라짐이나 파손이 발생될 우려가 있으며, 이는 내부를 유동하는 유체가 외부로 누출되는 문제점이 있다.That is, when the pipes 1 formed of a plastic resin series are connected to each other through screw joints or electrofusion, when the shape of the pipes 1 is deformed due to expansion or contraction or earthquake due to temperature change, There is a risk of cracking or breakage of the connection by the coupling, which is a problem that the fluid flowing inside leaks to the outside.
다시 말해, 배관(1)과 이음부(2)를 고정적인 결합 방식을 통해 결합할 경우, 배관(1) 또는 이음부(2)의 형상 변형에 대처하기 어렵기 때문에, 배관(1)과 이음부(2) 간의 결합 시 일정 신축성을 가지도록 형성함으로써, 형상 변형에도 결합을 유지하면서 내부를 유동하는 유체가 외부로 누출되는 것을 방지할 수 있는 기술이 필요한 실정이다.In other words, when the pipe 1 and the joint 2 are coupled through a fixed coupling method, since the shape deformation of the pipe 1 or the joint 2 is difficult to cope with, the pipe 1 and the joint are joined. Forming to have a certain elasticity when the coupling between the parts (2), there is a need for a technology that can prevent the fluid flowing inside while maintaining the coupling even in deformation deformation to the outside.
본 발명은 상술한 바와 같은 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 목적은 플라스틱 수지 계열로 형성되는 파이프와, 상기 파이프를 서로 연결하도록 형성되는 이음부를 포함하는 배관에 있어서, 파이프의 수축 또는 팽창 등 형상 변형에도 이음부와의 결합을 유지함과 함께, 실링을 유지할 수 있으므로, 내부를 유동하는 유체의 누출을 방지할 수 있는 신축성 이음부를 포함하는 배관을 제공하는 것이다.The present invention has been made to solve the problems described above, the object of the present invention is a pipe including a pipe formed of a plastic resin series, and a joint formed to connect the pipe to each other, the contraction of the pipe or It is to provide a pipe including a flexible joint that can maintain the coupling with the joint even when the shape is deformed, such as expansion, and maintain the sealing, thereby preventing the leakage of fluid flowing therein.
본 발명에 따른 신축성 이음부를 포함하는 배관은 플라스틱 수지 계열로 형성되는 파이프(100)와, 상기 파이프(100)를 감싸도록 결합되어 상기 파이프(100)를 연결하는 이음부(200)를 포함하는 배관으로서, 상기 파이프(100)는 선택되는 외경과 길이를 가지고 길이 방향으로 중공되어 형성되는 파이프몸체(110)와, 상기 파이프몸체(110)의 길이 방향의 적어도 하나 이상의 단부에 내경이 커지도록 돌출되어 형성되는 단턱부(120) 및 상기 단턱부(120)의 원주면에 형성되는 실링홈(121)에 신축성을 가지는 재질로 형성되는 실링부(130)를 포함하고, 상기 이음부(200)는 상기 단턱부(120)의 외경에 대응하는 내경과 선택되는 길이를 가지고 중공되어 형성되는 이음부몸체(210)와, 상기 이음부몸체(210)의 길이 방향 양 단부에 상기 파이프몸체(110)의 외경에 대응하는 내경을 가지도록 형성되는 걸림부(220)를 포함하는 것을 특징으로 한다.The pipe including the flexible joint according to the present invention is a pipe including a pipe 100 formed of a plastic resin series, and a pipe including a joint 200 coupled to surround the pipe 100 and connecting the pipe 100. As the pipe 100 has a selected outer diameter and length, the pipe body 110 is formed to be hollow in the longitudinal direction, and protrudes so that the inner diameter is increased at at least one end of the longitudinal direction of the pipe body 110; And a sealing part 130 formed of a material having elasticity in the stepped part 120 and the sealing groove 121 formed on the circumferential surface of the stepped part 120. An outer diameter of the pipe body 110 at both ends in the longitudinal direction of the joint body 210 and the joint body 210 having an inner diameter corresponding to the outer diameter of the stepped portion 120 and a selected length and formed in the hollow body 210. The inner diameter corresponding to In that it comprises a locking portion 220 that is formed so as to be characterized.
또한, 상기 실링부(130)는 상기 실링홈(121) 외부로 돌출되어 형성되는 요철부(131)를 포함하는 것을 특징으로 한다.In addition, the sealing part 130 is characterized in that it comprises a concave-convex portion 131 protruding to the outside of the sealing groove 121.
또한, 상기 요철부(131)는 길이 방향으로 적어도 둘 이상 이격되어 형성되는 것을 특징으로 한다.In addition, the uneven portion 131 is characterized in that formed at least two or more spaced apart in the longitudinal direction.
또한, 상기 실링부(130)는 아크릴로니트릴 부타디엔 고무(acrylonitrile-butadiene rubber, NBR)로 형성되는 것을 특징으로 한다.In addition, the sealing unit 130 is characterized in that formed of acrylonitrile-butadiene rubber (NBR).
또한, 상기 이음부몸체(210)는 길이 방향 중심으로 둘로 형성되되, 서로 면접하여 결합되는 결합부(211)를 더 포함하는 것을 특징으로 한다.In addition, the joint body 210 is formed in two in the center in the longitudinal direction, it characterized in that it further comprises a coupling portion 211 is coupled to each other by interview.
또한, 상기 이음부몸체(110)는 결합부(211)의 원주면에 돌출되어 형성되는 결합보조부(212)를 더 포함하는 것을 특징으로 한다.In addition, the joint body 110 is characterized in that it further comprises a coupling auxiliary portion 212 protruding on the circumferential surface of the coupling portion 211.
본 발명에 따른 신축성 이음부를 포함하는 배관은 플라스틱 수지 계열로 형성되는 파이프와, 상기 파이프를 서로 연결하도록 형성되는 이음부를 포함하는 배관에 있어서, 파이프의 수축 또는 팽창 등 형상 변형에도 이음부와의 결합을 유지함과 함께, 실링을 유지할 수 있는 장점이 있다.In a pipe including a flexible joint according to the present invention, a pipe formed of a plastic resin series and a pipe including a joint formed to connect the pipes to each other may be coupled to the joint even when the pipe is deformed or expanded. In addition to maintaining the, there is an advantage that can maintain the sealing.
또한, 본 발명에 따른 신축성 이음부를 포함하는 배관은 파이프의 수축 또는 팽창 등 형상 변형에도 이음부와의 결합을 유지함과 함께, 실링을 유지할 수 있으므로, 내부를 유동하는 유체의 누출을 방지할 수 있는 장점이 있다.In addition, the pipe including the flexible joint according to the present invention can maintain the seal and maintain the coupling to the joint even in the shape deformation, such as shrinkage or expansion of the pipe, it is possible to prevent the leakage of fluid flowing inside There is an advantage.
또한, 본 발명에 따른 신축성 이음부를 포함하는 배관은 파이프의 형상 변형에도 이음부와의 결합을 유지함과 함께. 실링을 유지할 수 있으므로, 배관의 유지 보수 기간을 증대시켜 효율적인 배관의 사용 및 관리가 가능한 장점이 있다.In addition, the piping including the flexible joint according to the present invention, while maintaining the coupling with the joint even in the shape deformation of the pipe. Since the sealing can be maintained, the maintenance period of the pipe can be increased, so that the use and management of the pipe can be efficiently performed.
도 1은 종래의 배관을 나타낸 도면1 is a view showing a conventional pipe
도 2는 본 발명의 제1 실시예에 따른 신축성 이음부를 포함하는 배관을 사시도로 나타낸 도면2 is a perspective view of a pipe including an elastic joint according to a first embodiment of the present invention;
도 3은 본 발명의 제1 실시예에 따른 신축성 이음부를 포함하는 배관을 단면도로 나타낸 도면3 is a sectional view showing a pipe including an elastic joint according to a first embodiment of the present invention;
도 4는 본 발명의 제1 실시예에 따른 신축성 이음부를 포함하는 배관의 실링부를 단면도로 나타낸 도면4 is a cross-sectional view of a sealing portion of a pipe including an elastic joint according to a first embodiment of the present invention;
도 5는 본 발명의 제2 실시예에 따른 신축성 이음부를 포함하는 배관을 단면도로 나타낸 도면5 is a cross-sectional view of a pipe including an elastic joint according to a second exemplary embodiment of the present invention.
도 6은 본 발명의 제2 실시예에 따른 신축성 이음부를 포함하는 배관의 실링부를 단면도로 나타낸 도면6 is a sectional view showing a sealing portion of a pipe including an elastic joint according to a second embodiment of the present invention;
도 7은 본 발명의 제3 실시예에 따른 신축성 이음부를 포함하는 배관을 단면도로 나타낸 도면7 is a cross-sectional view of a pipe including an elastic joint according to a third exemplary embodiment of the present invention.
이하, 상술한 바와 같은 본 발명에 따른 신축성 이음부를 포함하는 배관을 첨부된 도면을 참조로 상세히 설명한다.Hereinafter, a pipe including an elastic joint according to the present invention as described above will be described in detail with reference to the accompanying drawings.
도 2는 본 발명의 제1 실시예에 따른 신축성 이음부를 포함하는 배관을 사시도로 나타낸 도면이고, 도 3은 본 발명의 제1 실시예에 따른 신축성 이음부를 포함하는 배관을 단면도로 나타낸 도면이고, 도 4는 본 발명의 제1 실시예에 따른 신축성 이음부를 포함하는 배관의 실링부를 단면도로 나타낸 도면이다.2 is a view showing a pipe including a flexible joint according to a first embodiment of the present invention in a perspective view, Figure 3 is a view showing a pipe including a flexible joint according to a first embodiment of the present invention in a cross-sectional view, 4 is a cross-sectional view illustrating a sealing part of a pipe including an elastic joint part according to a first exemplary embodiment of the present invention.
도 2 내지 도 4를 참조하면, 본 발명의 제1 실시예에 따른 신축성 이음부를 포함하는 배관은 플라스틱 수지 계열로 형성되되, 길이 방향으로 중공되어 내부로 유체가 유동 가능하게 형성되는 파이프(100)와, 상기 파이프(100)를 감싸도록 결합되어 상기 파이프(100)를 연결함으로써, 파이프(100)의 연결을 통해 유체의 유동이 가능하도록 하는 이음부(200)를 포함하여 이루어진다.2 to 4, the pipe including the stretchable joint according to the first embodiment of the present invention is formed of a plastic resin series, and is hollow in the longitudinal direction so that the fluid is flowable therein. And, it is coupled to surround the pipe 100 is connected to the pipe 100, and comprises a joint 200 to enable the flow of fluid through the connection of the pipe 100.
좀 더 상세하게 설명하자면, 파이프(100)는 크게 파이프몸체(110)와 단턱부(120) 및 실링부(130)를 포함하여 이루어진다.In more detail, the pipe 100 includes a pipe body 110, a stepped part 120, and a sealing part 130.
파이프몸체(110)는 선택되는 외경과 길이를 가지도록 형성되되, 유체가 유동 가능하도록 길이 방향으로 중공되어 형성된다. Pipe body 110 is formed to have a selected outer diameter and length, it is formed to be hollow in the longitudinal direction so that the fluid can flow.
단턱부(120)는 파이프몸체(110)의 길이 방향으로 적어도 하나 이상의 단부에 내경이 커지도록 돌출되어 형성된다.The stepped part 120 is formed to protrude so that an inner diameter increases at least one or more end portions in the longitudinal direction of the pipe body 110.
실링부(130)는 단턱부(120)의 원주면에 형성되는 실링홈(121)에 신축성 있는 재질로 이루어진다.The sealing unit 130 is made of an elastic material in the sealing groove 121 formed on the circumferential surface of the stepped part 120.
이음부(200)는 크게 이음부몸체(210)와 걸림부(220)를 포함하여 이루어진다.The joint part 200 largely includes a joint body 210 and a locking part 220.
이음부몸체(210)는 단턱부(120)의 외경에 대응하는 내경과 선택되는 길이를 가지도록 형성되며, 길이 방향으로 중공되어 파이프(100)를 유동하는 유체의 유동을 방해하지 않도록 형성된다.The joint body 210 is formed to have an inner diameter corresponding to the outer diameter of the stepped part 120 and a selected length, and is formed so as not to interfere with the flow of the fluid flowing through the pipe 100 by being hollow in the longitudinal direction.
걸림부(220)는 이음부몸체(210)의 길이 방향 양 단부에 파이프몸체(110)의 외경에 대응하는 내경을 가지도록 형성된다.The locking part 220 is formed to have an inner diameter corresponding to the outer diameter of the pipe body 110 at both ends in the longitudinal direction of the joint body 210.
즉, 본 발명의 제1 실시예에 따른 신축성 이음부를 포함하는 배관(1000)은 파이프몸체(110)가 이음부몸체(210) 내부로 삽입되되, 파이프(100)의 단턱부(120)가 걸림부(120)에 의해 파이프몸체(110)가 이음부몸체(210)로부터 길이 방향으로 이탈되는 것을 방지할 수 있다.That is, in the pipe 1000 including the flexible joint according to the first embodiment of the present invention, the pipe body 110 is inserted into the joint body 210, and the stepped part 120 of the pipe 100 is caught. The pipe body 110 may be prevented from being separated in the longitudinal direction from the joint body 210 by the part 120.
아울러, 실링부(130)에 의해 파이프몸체(110) 또는 이음부몸체(210)가 위치 이탈 시에도 실링부(130)의 신축에 의해 파이프몸체(110) 또는 이음부몸체(210)가 파손되는 것을 방지할 수 있음과 함께, 유체가 외부로 누출되는 것을 방지할 수 있다.In addition, the pipe body 110 or the joint body 210 is damaged by the expansion and contraction of the sealing body 130 even when the pipe body 110 or the joint body 210 is separated from the position by the sealing unit 130 It is possible to prevent the leakage of the fluid to the outside as well as to prevent it.
좀 더 상세하게 설명하자면, 플라스틱 수지 계열로 형성되는 파이프(100)와 이음부(200)는 반영구적으로 사용이 가능한 장점이 있는 반면, 기온의 상승 또는 하강에 의해 팽창 또는 수축하게 된다.In more detail, while the pipe 100 and the joint part 200 formed of a plastic resin series have advantages in that they can be used semi-permanently, they are expanded or contracted by rising or falling temperatures.
이는 파이프(100) 또는 이음부(200)의 형상 변형에 의해 유체가 외부로 누출될 우려가 있을 뿐만 아니라, 파이프(100)와 이음부(200)가 결합된 상태에서 형상이 변형되어 파손될 우려가 있다.This may not only cause the fluid to leak to the outside due to the shape deformation of the pipe 100 or the joint part 200, but also may cause the shape of the pipe 100 and the joint part 200 to be deformed and damaged. have.
반면, 본 발명의 제1 실시예에 따른 신축성 이음부를 포함하는 배관(1000)은 신축성을 가지는 재질로 형성되는 실링부(130)에 의해 파이프몸체(110) 또는 이음부몸체(210)가 수축 또는 팽창 할 시, 실링부(130)의 신축에 의해 파이프몸체(110)와 이음부몸체(2100 간의 결합을 일정 유지할 수 있을 뿐만 아니라, 유체가 외부로 누출되는 것을 방지할 수 있다. On the other hand, in the pipe 1000 including the flexible joint according to the first embodiment of the present invention, the pipe body 110 or the joint body 210 is contracted or contracted by a sealing part 130 formed of a material having elasticity. When inflated, not only the coupling between the pipe body 110 and the joint body 2100 may be kept constant by the expansion and contraction of the sealing unit 130, and the fluid may be prevented from leaking to the outside.
이때, 실링부(130)는 신축성이 뛰어나고 실링이 용이하다면 다양한 재질로 형성되는 것이 바람직하나, 더욱 바람직하게는, 실링부(130)는 아크릴로니트릴 부타디엔 고무(acrylonitrile-butadiene rubber, NBR) 재질로 형성되는 것이 바람직하다.At this time, the sealing unit 130 is preferably formed of various materials if the elasticity is excellent and easy to seal, more preferably, the sealing unit 130 is made of acrylonitrile-butadiene rubber (NBR) material It is preferably formed.
아크릴로니트릴 부타디엔 고무는 염화비닐수지 계열의 재질에 비해 냄새가 덜 하고, 내구성이 좋아 오래 사용할 수 있어, 지하 등에 매몰되는 배관 등에 적용되어 장기간의 유지보수가 필요하지 않아 효율적인 사용이 가능한 장점이 있다.Acrylonitrile butadiene rubber has less odor than vinyl chloride-based materials and has long durability due to its high durability. Therefore, acrylonitrile butadiene rubber is applied to pipes buried underground, so it does not require long-term maintenance. .
<제2 실시예>Second Embodiment
도 5는 본 발명의 제2 실시예에 따른 신축성 이음부를 포함하는 배관을 단면도로 나타낸 도면이고, 도 6은 본 발명의 제2 실시예에 따른 신축성 이음부를 포함하는 배관의 실링부를 단면도로 나타낸 도면이다.5 is a cross-sectional view of a pipe including an elastic joint according to a second embodiment of the present invention, and FIG. 6 is a cross-sectional view of a sealing part of a pipe including an elastic joint according to a second embodiment of the present invention. to be.
도 5 및 도 6을 참조하면, 본 발명의 제2 실시예에 따른 신축성 이음부를 포함하는 배관(1000)의 실링부(130)는 실링홈(121) 외부로 돌출되어 형성되는 요철부(131)를 더 포함한다.5 and 6, the sealing part 130 of the pipe 1000 including the flexible joint part according to the second embodiment of the present invention protrudes out of the sealing groove 121 and is formed of the uneven part 131. It further includes.
즉, 요철부(131)는 실링홈(121) 외부로 돌출되어 이음부몸체(210)와의 결합이 증대됨으로써, 단턱부(120)와 이음부몸체(210)간의 실링을 더욱 더 견고하게 수행할 수 있다.That is, the uneven portion 131 protrudes to the outside of the sealing groove 121 to increase the coupling with the joint body 210, so that the sealing between the stepped portion 120 and the joint body 210 can be more firmly performed. Can be.
이때 요철부(131)의 형상은 단턱부(120)와 이음부몸체(210)간의 실링을 견고하게 수행할 수 있다면, 한정하지 않고 다양한 실시예가 가능하나, 본 발명의 제2 실시예에 따른 신축성 이음부를 포함하는 배관(1000)의 실링부(130)는 요철부(131)가 길이 방향으로 적어도 둘 이상으로 이격되어 돌출되도록 형성됨으로써, 실링을 2중 이상으로 수행하여, 단턱부(120)와 이음부몸체(210)간의 결합을 더욱 더 견고히 하여 내부를 유동하는 유체의 누출을 최소화하는 것이 바람직하다.In this case, the shape of the uneven portion 131 may be a variety of embodiments without limitation, if the sealing between the stepped portion 120 and the joint body 210 can be performed firmly, but the elasticity according to the second embodiment of the present invention The sealing portion 130 of the pipe 1000 including the joint portion is formed so that the uneven portion 131 is protruded at least two or more apart in the longitudinal direction, thereby performing the sealing in two or more, and the stepped portion 120 and It is preferable to minimize the leakage of the fluid flowing inside by further strengthening the coupling between the joint body (210).
<제3 실시예>Third Embodiment
도 7은 본 발명의 제3 실시예에 따른 신축성 이음부를 포함하는 배관을 단면도로 나타낸 도면이다.7 is a cross-sectional view of a pipe including an elastic joint according to a third exemplary embodiment of the present invention.
도 7을 참조하면, 본 발명의 제3 실시예에 따른 신축성 이음부를 포함하는 배관(1000)의 이음부몸체(210)는 길이 방향 중심으로 둘로 형성되며, 서로 면접하여 결합되는 결합부(111)를 더 포함하여 이루어진다.Referring to FIG. 7, the joint body 210 of the pipe 1000 including the flexible joint according to the third embodiment of the present invention is formed in two in the longitudinal direction, and is coupled to each other by being interviewed with each other. It further comprises.
즉, 이음부몸체(210)는 길이 방향 중심으로 둘로 형성됨으로써, 내측으로부터 파이프몸체(110)를 삽입하여, 파이프(100)의 단턱부(120)가 이음부(200)의 걸림부(220)에 걸려 결합되도록 하고, 이음부몸체(110)와 파이프몸체(120)의 결합이 수행된 후, 이음부몸체(210)들을 결합부(211)를 통해 서로 연결하여 이음부(200)를 형성할 수 있다.That is, the joint body 210 is formed in two in the longitudinal center, thereby inserting the pipe body 110 from the inside, so that the stepped portion 120 of the pipe 100 is the engaging portion 220 of the joint portion 200. After the coupling is coupled to the joint body 110 and the pipe body 120 is performed, the joint body 210 is connected to each other through the coupling portion 211 to form the joint portion 200. Can be.
이는 파이프몸체(110)를 이음부몸체(210)의 외측 방향에서 삽입됨으로써, 걸림부(120)의 내경보다 큰 외경을 가지는 파이프(100)의 단턱부(120)에 의해 삽입이 어려운 점을 보완할 수 있다.This is because the pipe body 110 is inserted from the outer side of the joint body 210 to compensate for the difficulty in inserting by the stepped portion 120 of the pipe 100 having an outer diameter larger than the inner diameter of the locking portion 120. can do.
이때 이음부몸체(210)는 서로 접합되는 면인 결합부(211)를 통해 융착을 통해 서로 결합되는 것이 바람직하나, 이음부몸체(210)간의 결합의 다양한 방법 실시예가 가능하므로 한정하지 않는다.At this time, the joint body 210 is preferably coupled to each other through fusion through the coupling portion 211 which is a surface bonded to each other, but various embodiments of the coupling between the joint body 210 is not limited.
아울러, 이음부몸체(110)는 결합부(111)의 원주면에 형성되는 결합보조부(212)를 더 포함할 수 있다.In addition, the joint body 110 may further include a coupling auxiliary part 212 formed on the circumferential surface of the coupling part 111.
결합보조부(212)는 결합부(211)의 원주면에 돌출되도록 형성됨으로써, 이음부몸체(210) 간의 결합 시, 작업자로 하여금 결합을 위한 접합 작업이 수월하도록 함과 함께, 결합보조부(212)를 통해 이음부몸체(210)간의 결합을 더욱 더 견고히 함으로써, 이음부몸체(210) 사이로 내부를 유동하는 유체가 누출되는 것을 방지할 수 있다. Coupling assistant 212 is formed to protrude on the circumferential surface of the coupling portion 211, when coupling between the joint body 210, to facilitate the joining operation for the operator, the coupling assistant 212 By further solidifying the coupling between the joint body 210, it is possible to prevent the fluid flowing inside the joint body 210 to leak.
[부호의 설명][Description of the code]
1000 : 신축성 이음부를 포함하는 배관1000: piping including elastic joint
100 : 파이프100: pipe
110 : 파이프몸체110: pipe body
120 : 단턱부120: stepped portion
121 : 실링홈121: sealing groove
130 : 실링부130: sealing part
131 : 요철부131: uneven portion
200 : 이음부200: seam
210 : 이음부몸체210: joint body
211 : 결합부211: coupling part
212 : 결합보조부212: coupling assistant
220 : 걸림부220: locking part

Claims (6)

  1. 플라스틱 수지 계열로 형성되는 파이프(100)와, 상기 파이프(100)를 감싸도록 결합되어 상기 파이프(100)를 연결하는 이음부(200)를 포함하는 배관으로서,As a pipe including a pipe 100 formed of a plastic resin series, and a joint part 200 coupled to surround the pipe 100 and connecting the pipe 100 to each other,
    상기 파이프(100)는The pipe 100
    선택되는 외경과 길이를 가지고 길이 방향으로 중공되어 형성되는 파이프몸체(110)와, 상기 파이프몸체(110)의 길이 방향의 적어도 하나 이상의 단부에 내경이 커지도록 돌출되어 형성되는 단턱부(120) 및 상기 단턱부(120)의 원주면에 형성되는 실링홈(121)에 신축성을 가지는 재질로 형성되는 실링부(130)를 포함하고,And the pipe body 110 is formed to be hollow in the longitudinal direction having an outer diameter and length selected, and the stepped portion 120 is formed to protrude to increase the inner diameter at at least one end of the longitudinal direction of the pipe body 110 and The sealing part 130 is formed of a material having elasticity in the sealing groove 121 formed on the circumferential surface of the stepped part 120,
    상기 이음부(200)는The joint part 200 is
    상기 단턱부(120)의 외경에 대응하는 내경과 선택되는 길이를 가지고 중공되어 형성되는 이음부몸체(210)와, 상기 이음부몸체(210)의 길이 방향 양 단부에 상기 파이프몸체(110)의 외경에 대응하는 내경을 가지도록 형성되는 걸림부(220)를 포함하는, 신축성 이음부를 포함하는 배관.The joint body 210 is formed to have an inner diameter corresponding to the outer diameter of the stepped part 120 and is selected to be hollow, and both ends of the pipe body 110 in the longitudinal direction of the joint body 210 are formed. Pipe including a flexible joint, including a locking portion 220 is formed to have an inner diameter corresponding to the outer diameter.
  2. 제 1항에 있어서,The method of claim 1,
    상기 실링부(130)는The sealing unit 130
    상기 실링홈(121) 외부로 돌출되어 형성되는 요철부(131)를 포함하는, 신축성 이음부를 포함하는 배관.Pipe including an elastic joint, including an uneven portion 131 is formed to protrude to the outside of the sealing groove 121.
  3. 제 2항에 있어서,The method of claim 2,
    상기 요철부(131)는The uneven portion 131 is
    길이 방향으로 적어도 둘 이상 이격되어 형성되는, 신축성 이음부를 포함하는 배관.A pipe comprising an elastic joint, formed at least two or more spaced apart in the longitudinal direction.
  4. 제 1항에 있어서,The method of claim 1,
    상기 실링부(130)는The sealing unit 130
    아크릴로니트릴 부타디엔 고무(acrylonitrile-butadiene rubber, NBR)으로 형성되는, 신축성 이음부를 포함하는 배관.Tubing comprising flexible joints, formed from acrylonitrile-butadiene rubber (NBR).
  5. 제 1항에 있어서,The method of claim 1,
    상기 이음부몸체(210)는The joint body 210 is
    길이 방향 중심으로 둘로 형성되되, 서로 면접하여 결합되는 결합부(211)를 더 포함하는, 신축성 이음부를 포함하는 배관.Is formed in two in the longitudinal center, the pipe further comprises a coupling part 211 is joined to each other, the flexible joint.
  6. 제 5항에 있어서,The method of claim 5,
    상기 이음부몸체(110)는The joint body 110 is
    결합부(111)의 원주면에 형성되는 결합보조부(212)를 더 포함하는, 신축성 이음부를 포함하는 배관.Piping including a flexible joint further comprising a coupling assistant (212) formed on the circumferential surface of the coupling portion (111).
PCT/KR2019/005907 2018-05-31 2019-05-17 Pipe including flexible joint part WO2019231148A1 (en)

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KR1020180062679A KR20190136677A (en) 2018-05-31 2018-05-31 Pipes Containing Flexible Joint
KR10-2018-0062679 2018-05-31

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KR102258378B1 (en) * 2020-09-28 2021-05-31 그린로드(주) Transverse drain pipe of apparatus for draining wastewater of bridge and construction method thereof
KR102348396B1 (en) * 2020-10-12 2022-01-07 그린로드(주) The point drainge appartus with linear drainge function
KR102341573B1 (en) * 2021-04-07 2021-12-21 심성섭 Pipe joint for Water pipe line for firefighting equipment
KR102403067B1 (en) * 2021-11-05 2022-05-30 두한종합건설 주식회사 Pipe joint for bridge drainage system and method for constructing pipe using the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61179485U (en) * 1985-04-26 1986-11-08
JPH0547694U (en) * 1991-11-27 1993-06-25 日東工器株式会社 Pipe fitting valve
JPH11182761A (en) * 1997-12-16 1999-07-06 Ishikawajima Harima Heavy Ind Co Ltd Torsional moment absorbing pipe joint
JP3458099B2 (en) * 2000-11-06 2003-10-20 国統国際股▲ふん▼有限公司 Compensating flexible pipe fittings
KR100998358B1 (en) * 2010-09-09 2010-12-06 주식회사 서일탑스코 Expansion joint

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170090085A (en) 2016-01-28 2017-08-07 주식회사 신흥밸브 Pipe connection device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61179485U (en) * 1985-04-26 1986-11-08
JPH0547694U (en) * 1991-11-27 1993-06-25 日東工器株式会社 Pipe fitting valve
JPH11182761A (en) * 1997-12-16 1999-07-06 Ishikawajima Harima Heavy Ind Co Ltd Torsional moment absorbing pipe joint
JP3458099B2 (en) * 2000-11-06 2003-10-20 国統国際股▲ふん▼有限公司 Compensating flexible pipe fittings
KR100998358B1 (en) * 2010-09-09 2010-12-06 주식회사 서일탑스코 Expansion joint

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