WO2024258214A1 - Joint d'étanchéité pour accouplement de tuyaux - Google Patents

Joint d'étanchéité pour accouplement de tuyaux Download PDF

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Publication number
WO2024258214A1
WO2024258214A1 PCT/KR2024/008139 KR2024008139W WO2024258214A1 WO 2024258214 A1 WO2024258214 A1 WO 2024258214A1 KR 2024008139 W KR2024008139 W KR 2024008139W WO 2024258214 A1 WO2024258214 A1 WO 2024258214A1
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WO
WIPO (PCT)
Prior art keywords
gasket
pressurizing
fluid
pipe
pipe coupling
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2024/008139
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English (en)
Korean (ko)
Inventor
이상헌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
New Asia Co Ltd
Original Assignee
New Asia Co Ltd
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 New Asia Co Ltd filed Critical New Asia Co Ltd
Publication of WO2024258214A1 publication Critical patent/WO2024258214A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • F16L21/06—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe ends

Definitions

  • the present invention relates to a gasket, and more particularly, to a gasket for a pipe coupling.
  • a typical building is equipped with pipes to supply water to each living space or to receive fire extinguishing water in the event of a fire, and the pipes can be installed from the basement of the building to the roof.
  • Korean Patent Publication No. 2014-0103268 discloses a conventional gasket.
  • Such a conventional gasket has a problem in that the fluid contained inside the pipe leaks due to low water-tightness.
  • the gasket is deformed due to the negative pressure formed inside the pipe, causing the fluid contained inside the pipe to easily leak.
  • the present invention is intended to solve the above problems, and an object of the present invention is to provide a gasket for a pipe coupling having improved watertightness performance.
  • a gasket for use in a pipe coupling which comprises a body for connecting continuously arranged pipes, side walls formed extending at both ends in the width direction of the body to form an internal space, and a catch projection formed extending at a lower end of the side walls to be inserted into a fastening groove formed in the pipe, wherein the gasket includes a base portion arranged in close contact with an inner surface of the body, a side portion arranged in close contact with an inner surface of the side walls, a leg portion having a fastening surface that closely contacts an outer surface of the pipe, and a pressing portion that presses the leg portion so that the degree of pressing of the fastening surface increases when a fastening force is applied to the coupling.
  • the pressurizing portion may include a first pressurizing member formed on the inner surface of the base portion and extending toward the leg portion.
  • the first pressurizing member may be provided in multiple numbers along the circumferential direction, and a fluid movement region in which the fluid moves may be provided between adjacent first pressurizing members.
  • a first acceleration surface may be provided on the inner side in the width direction of the first pressure member, in which the gap between adjacent first pressure members decreases so as to increase the movement speed of the fluid moving from the fluid supply region to the fluid movement region.
  • a second acceleration surface may be provided on the outer side in the width direction of the first pressurizing member, in which the gap between adjacent first pressurizing members decreases so as to increase the moving speed of the fluid moving from the fluid pressurizing region to the fluid moving region.
  • the leg portion may be provided with a leg slope formed with an incline toward the inside in the width direction so as to increase the degree of deformation of the leg portion
  • the first pressing member may be provided with a pressing slope formed with the same incline as the incline of the leg slope so as to make surface contact with the leg slope
  • the center of the first pressurizing member may be placed outside the center of the fluid receiving space in which the fluid is received in the width direction.
  • the pressurizing member may include a second pressurizing member provided on the outer surface of the side member and extending toward the side wall.
  • the second pressurizing member can be formed to extend along the circumferential direction.
  • a pressure surface having a predetermined curvature may be provided on the outer surface of the second pressure member.
  • the pressurizing surface may include a first unit pressurizing surface disposed radially upward and having a first curvature, and a second unit pressurizing surface disposed radially downward and having a second curvature.
  • the first curvature can be formed to be greater than the second curvature.
  • the pressurizing portion may include a third pressurizing member formed on the inner surface of the side portion and extending toward the leg portion.
  • the gasket for a pipe coupling further improves watertight performance by providing a pressurizing portion that pressurizes the leg portion so that the degree of pressurization of the contact surface provided in the leg portion increases when a fastening force is applied to the coupling.
  • FIG. 1 is a cross-sectional view showing a gasket for a pipe coupling and a pipe coupling in an exploded state according to one embodiment of the present invention.
  • FIG. 2 is a cross-sectional view showing a state in which a gasket for a pipe coupling and a pipe coupling are assembled according to one embodiment of the present invention.
  • FIG. 3 is a cross-sectional view showing a gasket for a pipe coupling and a pipe coupling in an exploded state according to another embodiment of the present invention.
  • FIG. 4 is a cross-sectional view showing a state in which a gasket for a pipe coupling and a pipe coupling are assembled according to another embodiment of the present invention.
  • FIG. 5 is a cross-sectional view of a gasket for a pipe coupling according to one embodiment of the present invention.
  • FIG. 6 is a cross-sectional view illustrating a first pressurizing member provided in a gasket for a pipe coupling according to one embodiment of the present invention.
  • FIG. 7 is a cross-sectional view illustrating a first modified example of a first pressurizing member provided in a gasket for a pipe coupling according to one embodiment of the present invention.
  • FIG. 8 is a cross-sectional view illustrating a second modified example of a first pressurizing member provided in a gasket for a pipe coupling according to one embodiment of the present invention.
  • FIG. 9 is a cross-sectional view illustrating a third modified example of a first pressurizing member provided in a gasket for a pipe coupling according to one embodiment of the present invention.
  • FIG. 10 is a cross-sectional view illustrating a fourth modified example of a first pressurizing member provided in a gasket for a pipe coupling according to one embodiment of the present invention.
  • FIG. 11 is a side view of a gasket for a pipe coupling according to another embodiment of the present invention.
  • FIG. 12 is an enlarged cross-sectional view of a second pressurizing member provided in a gasket for a pipe coupling according to another embodiment of the present invention.
  • FIG. 13 is an enlarged cross-sectional view of a first modified example of a second pressurizing member provided in a gasket for a pipe coupling according to another embodiment of the present invention.
  • FIG. 14 is a cross-sectional view showing a gasket for a pipe coupling and a pipe coupling in an exploded state according to another embodiment of the present invention.
  • FIG. 1 is a cross-sectional view illustrating a state in which a gasket for a pipe coupling and a pipe coupling are disassembled according to an embodiment of the present invention
  • FIG. 2 is a cross-sectional view illustrating a state in which a gasket for a pipe coupling and a pipe coupling are assembled according to an embodiment of the present invention
  • FIG. 3 is a cross-sectional view illustrating a state in which a gasket for a pipe coupling and a pipe coupling are disassembled according to another embodiment of the present invention
  • FIG. 1 is a cross-sectional view illustrating a state in which a gasket for a pipe coupling and a pipe coupling are disassembled according to an embodiment of the present invention
  • FIG. 2 is a cross-sectional view illustrating a state in which a gasket for a pipe coupling and a pipe coupling are assembled according to an embodiment of the present invention
  • FIG. 3 is a cross-sectional view illustrating a state in which
  • the W direction means the width direction
  • the R direction means the radial direction
  • the A direction means the circumferential direction.
  • a gasket for a pipe coupling is used in a pipe coupling (20) having a body (21) for connecting pipes (10) arranged in series, side walls (22) formed to extend at both ends in the width direction (W) of the body (21) so as to form an internal space (20a), and a catch projection (23) formed to extend at the lower end of the side walls (22) so as to be inserted into a fastening groove (11) formed in the pipe (10).
  • the gasket (100) can be placed in the internal space (20a) formed in the coupling (20), and when a fastening force is applied to the coupling (20) with the gasket (100) placed, the engaging projection (23) is inserted into the fastening groove (11) and fixed.
  • An arch surface may be provided on the inner side in the radial direction (R) of the hook projection (23), and the inner diameter of the arch surface is formed to a size corresponding to the outer diameter of the fastening groove (11).
  • the inner diameter of the hook projection (23) may be formed to be slightly larger than the outer diameter of the fastening groove (11). This is because the hook projection (23) is in close contact with the outer side in the radial direction (R) than the fastening groove (11). It is preferable that the difference in size between the inner diameter of the hook projection (23) and the outer diameter of the fastening groove (11) be formed only to the extent that the hook projection (23) can be in close contact with the outer surface of the fastening groove (11).
  • the gasket (100) includes a base portion (110) that is positioned in close contact with the inner surface of the body (21), a side portion (120) that is positioned in close contact with the inner surface of the side wall (22), a leg portion (130) that is provided with a contact surface (131) that is positioned in close contact with the outer surface of the pipe (10), and a pressurizing portion (140) that pressurizes the leg portion (130) so that the degree of pressurization of the contact surface (131) increases when a fastening force is applied to the coupling (20).
  • the leg portion (130) is elastically deformed and the contact surface (131) comes into close contact with the outer surface of the pipe (10), thereby preventing fluid leakage. Furthermore, as the pressurizing portion (140) presses the leg portion (130), the degree of pressurization of the contact surface (131) increases, thereby further improving the watertight performance.
  • the leg part (130) can be directly pressed through the first pressing member (141), or as shown in FIGS. 3 and 4, the leg part (130) can be indirectly pressed through the second pressing member (142).
  • the gasket (100) may be provided with a tongue (150).
  • the tongue (150) supports the end of the pipe (10) when installing the pipe (10), thereby allowing the pipe (10) to be accurately placed in the center of the width direction (W) of the coupling (20). Through this, the pipe (10) placed on one side of the width direction (W) and the pipe (10) placed on the other side are placed in the correct positions, thereby improving the watertightness performance.
  • the pressurizing member (140) may include a first pressurizing member (141) provided on the inner surface of the base portion (110) and extending toward the leg portion (130).
  • a fluid receiving space (FR) in which a fluid is received may be formed inside the gasket (100), and the first pressurizing member (141) improves the watertightness performance against the internal pressure formed by the fluid.
  • the first pressurizing member (141) directly pressurizes the leg portion (130) and increases the contact surface pressure of the contact surface (131).
  • the first pressure member (141) Since the first pressure member (141) is provided inside the gasket (100), it is important to check the dimensions during and after manufacturing the gasket (100) in order to secure sufficient watertight performance, and it is important to manage the quality of the gasket (100). In addition, it is also necessary to consider whether interference occurs between the first pressure members (141) when fastening the coupling (20), or whether deformation occurs in the first pressure member (141) due to this. The position or size of the first pressure member (141) may be changed according to the design specifications.
  • FIG. 5 is a cross-sectional view of a gasket for a pipe coupling according to one embodiment of the present invention.
  • a plurality of first pressure members (141) are provided along the circumferential direction (A), and a fluid movement area (FZ) in which fluid moves may be provided between adjacent first pressure members (141).
  • first pressurizing members (141) are provided in a spaced-apart manner along the circumferential direction (A), and a fluid movement region (FZ) is provided between adjacent first pressurizing members (141), so that the first pressurizing members (141) can evenly pressurize the leg portion (130) while the fluid is evenly filled inside the gasket (100), thereby enabling improvement of watertightness using fluid pressure.
  • FIG. 6 is a cross-sectional view illustrating a first pressurizing member provided in a gasket for a pipe coupling according to one embodiment of the present invention
  • FIG. 7 is a cross-sectional view illustrating a first modified example of the first pressurizing member provided in a gasket for a pipe coupling according to one embodiment of the present invention.
  • a first acceleration surface (141a) may be provided on the inner side in the width direction (W) of the first pressure member (141) such that the gap between adjacent first pressure members (141) decreases so that the moving speed of the fluid moving from the fluid supply region (FS) to the fluid movement region (FZ) increases.
  • FIG. 8 is a cross-sectional view illustrating a second modified example of a first pressurizing member provided in a gasket for a pipe coupling according to one embodiment of the present invention.
  • a second acceleration surface (141b) may be provided on the outer side in the width direction (W) of the first pressure member (141) so that the gap between adjacent first pressure members (141) decreases so that the moving speed of the fluid moving from the fluid pressure region (FP) to the fluid movement region (FZ) increases.
  • FIG. 9 is a cross-sectional view illustrating a third modified example of a first pressurizing member provided in a gasket for a pipe coupling according to one embodiment of the present invention.
  • the leg portion (130) may be provided with a leg slope (132) that is formed to be inclined toward the inside in the width direction (W) so that the degree of deformation of the leg portion (130) increases, and the first pressure member (141) may be provided with a pressure slope (141c) that is formed to have the same slope as the slope of the leg slope (132) so as to make surface contact with the leg slope (132).
  • the pressurizing slope (141c) makes surface contact with the leg slope (132) and can evenly pressurize the leg portion (130), thereby improving the watertight performance.
  • FIG. 10 is a cross-sectional view illustrating a fourth modified example of a first pressurizing member provided in a gasket for a pipe coupling according to one embodiment of the present invention.
  • the center (CP) of the first pressurizing member (141) may be positioned outside the center (CR) of the fluid receiving space (FR) in which the fluid is received in the width direction (W). With this configuration, the first pressurizing member (141) can pressurize the leg portion (130) more effectively, thereby improving the watertightness performance.
  • the pressurizing member (140) may include a second pressurizing member (142) provided on the outer surface of the side portion (120) and extended toward the side wall (22).
  • a fluid receiving space (FR) in which a fluid is received may be formed inside the gasket (100), and the second pressurizing member (142) improves the watertightness performance against the internal pressure formed by the fluid.
  • the second pressurizing member (142) is pressed by the side wall (22), and the side portion (120) is directly pressed inward in the width direction (W), and through this, the leg portion (130) is also indirectly pressed inward in the width direction (W), thereby increasing the watertightness performance.
  • the second pressure member (142) supports the side wall (22) of the coupling (20) by pushing it outward in the radial direction (R), so that the gap between the mutually opposed couplings (20) increases, making it easy to insert and place the pipe (10) in the assembled state of the coupling (20).
  • a free space is provided on the outer and inner sides in the radial direction (R) centered on the second pressure member (142), and even if the gasket (100) expands due to the fluid pressure inside the gasket (100), the expansion of the gasket (100) can be accommodated in the free space, thereby preventing unintended deformation of the gasket (100).
  • the second pressurizing member (142) is provided inside the gasket (100), it is important to check the dimensions during and after manufacturing the gasket (100) in order to secure sufficient watertight performance, and it is important to manage the quality of the gasket (100). In addition, since the gasket (100) does not adhere closely to the inner surface of the coupling (20) due to the second pressurizing member (142) when the coupling (20) is in a pre-assembled state, it is necessary to design the size and position of the second pressurizing member (142) by taking this into consideration.
  • FIG. 11 is a side view of a gasket for a pipe coupling according to another embodiment of the present invention.
  • the second pressurizing member (142) may be formed to extend along the circumferential direction (A). With this configuration, when a fastening force is applied to the coupling (20), the second pressurizing member (142) is evenly pressed by the side wall (22), so that the side portion (120) is directly pressed, and the leg portion (130) is indirectly pressed by the side portion (120) being pressed, so that watertight performance can be secured.
  • the second pressure member (142) may be arranged in multiple spaced apart manners along the circumferential direction (A).
  • FIG. 12 is an enlarged cross-sectional view of a second pressurizing member provided in a gasket for a pipe coupling according to another embodiment of the present invention.
  • a pressing surface (142a) having a predetermined curvature may be provided on the outer surface of the second pressing member (142).
  • FIG. 13 is an enlarged cross-sectional view of a first modified example of a second pressurizing member provided in a gasket for a pipe coupling according to another embodiment of the present invention.
  • the pressurizing surface (142a) may include a first unit pressurizing surface (142a’) disposed on the upper side in the radial direction (R) and having a first curvature (R1), and a second unit pressurizing surface (142a”) disposed on the lower side in the radial direction (R) and having a second curvature (R2).
  • first unit pressurizing surface (142a’) disposed on the upper side in the radial direction (R) and having a first curvature (R1)
  • a second unit pressurizing surface (142a”) disposed on the lower side in the radial direction (R) and having a second curvature (R2).
  • the first curvature (R1) may be formed to be larger than the second curvature (R2). That is, since the first curvature (R1) of the first unit pressurizing surface (142a’) disposed on the upper side in the radial direction (R) is formed to be relatively larger than the second curvature (R2), the first unit pressurizing surface (142a’) forms a gentle curve, so that the coupling (20) can be easily fitted during the coupling (20) assembly process.
  • the second curvature (R2) of the second unit pressurizing surface (142a”) disposed on the lower side in the radial direction (R) is formed to be relatively smaller than the first curvature (R1), the second unit pressurizing surface (142a”) forms a steep curve, so that when a fastening force is applied after assembling the coupling (20), the degree of pressurization of the leg portion (130) increases, thereby improving the watertightness performance.
  • FIG. 14 is a cross-sectional view showing a gasket for a pipe coupling and a pipe coupling in an exploded state according to another embodiment of the present invention.
  • the pressurizing member (140) may include a third pressurizing member (143) formed on the inner surface of the side portion (120) and extending toward the leg portion (130).
  • a fluid receiving space (FR) in which a fluid is received may be formed inside the gasket (100), and the third pressurizing member (143) improves the watertightness performance against the internal pressure formed by the fluid.
  • the third pressurizing member (143) directly pressurizes the leg portion (130) and increases the contact surface pressure of the contact surface (131).
  • the gasket for a pipe coupling further improves watertight performance by being provided with a pressurizing portion (140) that pressurizes the leg portion (130) so that the degree of pressurization of the contact surface (131) provided in the leg portion (130) increases when a fastening force is applied to the coupling (20).

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Gasket Seals (AREA)

Abstract

Est divulgué un joint d'étanchéité pour un accouplement de tuyaux. Un joint d'étanchéité pour un accouplement de tuyaux, selon un aspect de la présente invention, est utilisé pour un accouplement de tuyaux afin de raccorder successivement des tuyaux agencés, et comprend : un corps ; des parois latérales s'étendant à partir des deux extrémités du corps dans le sens de la largeur pour former un espace interne ; et des saillies d'accrochage s'étendant à partir de l'extrémité inférieure des parois latérales de manière à être insérées dans des rainures de fixation formées dans les tuyaux. Le joint d'étanchéité peut comprendre : une partie de base disposée en contact étroit avec la surface interne du corps ; une partie latérale disposée en contact étroit avec la surface interne des parois latérales ; une partie patte présentant une surface de contact étroit en contact étroit avec la surface externe des tuyaux ; et une partie de pression destinée à presser la partie patte pour augmenter la pression appliquée à la surface de contact étroit lorsqu'une force de fixation est appliquée à l'accouplement.
PCT/KR2024/008139 2023-06-15 2024-06-13 Joint d'étanchéité pour accouplement de tuyaux Ceased WO2024258214A1 (fr)

Applications Claiming Priority (2)

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KR10-2023-0076897 2023-06-15
KR1020230076897A KR102664135B1 (ko) 2023-06-15 2023-06-15 파이프 커플링용 가스켓

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Publication number Priority date Publication date Assignee Title
KR102664135B1 (ko) * 2023-06-15 2024-05-08 (주)뉴아세아 파이프 커플링용 가스켓

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110103775A (ko) * 2010-03-15 2011-09-21 (주) 영남메탈 파이프 커플링용 패킹 및 이를 이용한 커플러
KR101732065B1 (ko) * 2016-05-11 2017-05-11 주식회사 하이스텐 파이프 수밀용 패킹부재
KR101754397B1 (ko) * 2016-07-14 2017-07-06 남상건 내진용 무홈 커플링
KR20180007620A (ko) * 2016-07-13 2018-01-23 주식회사 하이스텐 커플링
KR20180084229A (ko) * 2017-01-16 2018-07-25 강태식 패스트 그루브 조인트
KR102664135B1 (ko) * 2023-06-15 2024-05-08 (주)뉴아세아 파이프 커플링용 가스켓

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110103775A (ko) * 2010-03-15 2011-09-21 (주) 영남메탈 파이프 커플링용 패킹 및 이를 이용한 커플러
KR101732065B1 (ko) * 2016-05-11 2017-05-11 주식회사 하이스텐 파이프 수밀용 패킹부재
KR20180007620A (ko) * 2016-07-13 2018-01-23 주식회사 하이스텐 커플링
KR101754397B1 (ko) * 2016-07-14 2017-07-06 남상건 내진용 무홈 커플링
KR20180084229A (ko) * 2017-01-16 2018-07-25 강태식 패스트 그루브 조인트
KR102664135B1 (ko) * 2023-06-15 2024-05-08 (주)뉴아세아 파이프 커플링용 가스켓

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