WO2003058109A1 - Pipe joint - Google Patents

Pipe joint Download PDF

Info

Publication number
WO2003058109A1
WO2003058109A1 PCT/KR2002/002433 KR0202433W WO03058109A1 WO 2003058109 A1 WO2003058109 A1 WO 2003058109A1 KR 0202433 W KR0202433 W KR 0202433W WO 03058109 A1 WO03058109 A1 WO 03058109A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
joint
ring
pipe joint
packing
Prior art date
Application number
PCT/KR2002/002433
Other languages
French (fr)
Inventor
Kang-Hoon Park
Original Assignee
Kang-Hoon Park
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 Kang-Hoon Park filed Critical Kang-Hoon Park
Priority to AU2002359033A priority Critical patent/AU2002359033A1/en
Publication of WO2003058109A1 publication Critical patent/WO2003058109A1/en

Links

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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/08—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe
    • F16L19/083—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe the longitudinal cross-section of the ring not being modified during clamping
    • F16L19/086—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe the longitudinal cross-section of the ring not being modified during clamping with additional sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
    • F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing 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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/0845—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of retaining members associated with the packing member

Definitions

  • the present invention relates to a pipe joint, and more
  • zigzagged ring having a number of tongues, and an elastic rubber integrated with the ring in annular shape.
  • the pipe joint in accordance with the present invention has a simplified structure to provide a relatively small diameter of the joint, and no threaded groove on the pipe to make the pipe having a reduced thickness, thereby enabling a manufacture of cost-effective joint and pipe.
  • cap nut having a threshold for stopping the stop ring.
  • the cap nut is threadedly engaged with the joint to tighten the pipe and the joint.
  • the present invention has been made to overcome the above problems, and it is an object of the present invention to provide a pipe
  • joint whose joint main body is provided with a packing made of special rubber conjugated and formed such that a semicircular cross section can be formed above and below a clamp ring having lingual parts by
  • a pipe joint comprising a main body provided with an outward tapered portion at its open end, an inward annular protrusion in which a pipe is seated,
  • cap nut having an inward annular protrusion to bias downwardly the packing into the tapered portion, and a female thread
  • the packing of the pipe joint is provided with a zigzagged ring having a number of tongues, and an elastic rubber integrated with the ring in annular shape.
  • Fig. 1 is a partial cross-sectional plan view of the packing of the pipe joint of the present invention
  • Fig. 2 is a cross-sectional view taken along the line I-I of the packing of Fig. 1 ;
  • Fig. 3 is a cross-sectional view of the pipe joint prior to the insertion of the pipe
  • Fig. 4 is a cross-sectional view of the pipe joint on the completion of the insertion of the pipe and fastening of the cap nut. * Description of major reference numerals *
  • main body 10a thread portion
  • Fig. 1 is a partial cross-sectional plan view of the packing of the
  • Fig. 2 is a cross-sectional view taken along the line I-I of the packing of Fig. 1.
  • the packing 23 is provided with a zigzagged ring 21 having a number of tongues 20 and 20a, and an elastic rubber 22 integrated with the ring 21 in annular shape.
  • zigzagged ring 21 is made of light metals and have a number of tongues
  • the pipe joint in accordance with the present invention comprises a main body 10 provided with an outward
  • FIG. 4 illustrates a cross-sectional view of the pipe joint on the completion of the insertion of the pipe and fastening of the cap nut. As shown in Fig. 4, the pipe 30 is inserted into the joint to be seated onto
  • the inward annular protrusion 11 As the cap nut 32 is engaged with the main body 10 along the thread portion 10a, the number of tongues 20 of the zigzagged ring 21 and the elastic rubber 22 are pressurized against the tapered portion 12. The zigzagged ring 21 and the elastic
  • the tongues of the ring is biased downwardly by the cap nut 32 to fasten the pipe to the joint, thereby preventing the pipe from separating from the joint.
  • the packing 23 is inserted into the tapered portion 12 of the main body 10, then the cap nut 32 is engaged with the thread portion 10a of the main body 10. After the pipe is located into the
  • annular protrusion 31 of the cap nut 32 is downwardly moved along the thread portion 10a to bias the packing 23 against the tapered portion 12 of the main body 10 and the outer surface of the pipe 30.
  • pipe joint in accordance with the present invention has a simplified structure and no threaded groove for inserting the
  • the present invention relates to a pipe joint comprising a packing provided with a zigzagged ring having a number of tongues, and an
  • the elastic rubber integrated with the ring in annular shape.
  • the zigzagged ring and the elastic rubber cooperate to provide a firm fixing and sealing between the pipe and the joint.
  • the pipe joint in accordance with the present invention has a

Abstract

The present invention relates to a pipe joint, and more particularly, to a pipe joint whose joint main body is provided with a packing made of special rubber conjugated and formed such that a semicircular cross section can be formed above and below a clamp ring having lingual parts by being cut away in a zigzag manner and which is coupled to the interconnection pipe by screwing a cap nut with a downward projecting arc to the main body, whereby the interconnection pipe is firmly clamped by the packing contained on the sloping periphery of the main body. This prevents the separation or blurring of the interconnection pipe and offers very excellent watertight and sealing effects by the semicircular cross-section uniformly deformed and pressed to the interconnection pipe. Especially, since there is no need to form an insertion groove or screw groove for inserting the clamp ring or an O-ring, the size of the pipe joint and the thickness of the interconnection pipe are reduced, whereby it is convenient for handling by virtue of making a raw material saved and lightweight and the working time taken for connecting the pipe joint and the interconnection pipe becomes lower.

Description

PIPE JOINT
TECHNICAL FIELD
The present invention relates to a pipe joint, and more
particularly, to a pipe joint comprising a packing provided with a
zigzagged ring having a number of tongues, and an elastic rubber integrated with the ring in annular shape. The zigzagged ring and the
elastic rubber cooperate to provide a firm fixing and sealing between a pipe and the joint. The pipe joint in accordance with the present invention has a simplified structure to provide a relatively small diameter of the joint, and no threaded groove on the pipe to make the pipe having a reduced thickness, thereby enabling a manufacture of cost-effective joint and pipe.
BACKGROUND ART
Conventional pipe joints should ensure that the joint is firmly fixed to the pipe to seal therebetween when metal pipes or resin pipes
are branched or elongated by the joint.
These joints employ a threaded engagement for maintaining a sealing condition between the pipe and the joint, and a number of
components comprising a tightening ring, O-ring, stop ring, which are
inserted sequentially into the grooves formed on an inner surface of the
joint, and a cap nut having a threshold for stopping the stop ring. The cap nut is threadedly engaged with the joint to tighten the pipe and the joint.
However, this pipe joint has shortcomings of becoming expensive
and heavy, since the pipe joint require a formation of additional screw
thread in the inner surface of the joint and a significant magnitude of the groove for a good sealing performance of the tightening ring, O-ring and stop ring. In addition, due to an employment of various
components, there are problems of difficult assembling procedure and of increased leakage probability.
DISCLOSURE OF INVENTION
The present invention has been made to overcome the above problems, and it is an object of the present invention to provide a pipe
joint whose joint main body is provided with a packing made of special rubber conjugated and formed such that a semicircular cross section can be formed above and below a clamp ring having lingual parts by
being cut away in a zigzag manner and which is coupled to the interconnection pipe by screwing a cap nut with a downward projecting arc to the main body, whereby the interconnection pipe is firmly clamped by the packing contained on the sloping periphery of the main
body.
In accordance with the present invention, there is provided a pipe joint comprising a main body provided with an outward tapered portion at its open end, an inward annular protrusion in which a pipe is seated,
and a male thread on outer surface; a packing inserted into the tapered
portion; and a cap nut having an inward annular protrusion to bias downwardly the packing into the tapered portion, and a female thread
therein to engage with the male thread. The packing of the pipe joint is provided with a zigzagged ring having a number of tongues, and an elastic rubber integrated with the ring in annular shape. The
zigzagged ring and the elastic rubber cooperate to provide a firm fixing and sealing between the pipe and the joint. The tongues of the ring is
biased downwardly by the cap nut to fasten the pipe to the joint,
thereby preventing the pipe from separating from the joint.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features, aspects, and advantages of preferred
embodiments of the present invention will be more fully described in the following detailed description, taken accompanying drawings. In the drawings:
Fig. 1 is a partial cross-sectional plan view of the packing of the pipe joint of the present invention;
Fig. 2 is a cross-sectional view taken along the line I-I of the packing of Fig. 1 ;
Fig. 3 is a cross-sectional view of the pipe joint prior to the insertion of the pipe; Fig. 4 is a cross-sectional view of the pipe joint on the completion of the insertion of the pipe and fastening of the cap nut. * Description of major reference numerals *
10 : main body 10a: thread portion
11 : inward annular protrusion 12 : tapered portion
20 and 20a : tongue 21 : zigzagged ring 22 and 22a : elastic rubber 23 : packing
30 : pipe 31 : downward annular protrusion
32 : cap nut
BEST MODES FOR CARRYING OUT THE INVENTION
Hereinafter, the details of the present invention will be described in connection with the accompanying drawings.
Fig. 1 is a partial cross-sectional plan view of the packing of the
pipe joint of the present invention and Fig. 2 is a cross-sectional view taken along the line I-I of the packing of Fig. 1.
As shown in Figs. 1 and 2, the packing 23 is provided with a zigzagged ring 21 having a number of tongues 20 and 20a, and an elastic rubber 22 integrated with the ring 21 in annular shape. The
zigzagged ring 21 is made of light metals and have a number of tongues
20 inwardly protruded from the elastic rubber 22 and 22a to contact an
outer surface of a pipe at the time of fastening. The elastic rubber 22
and 22a is integrally formed from a pair of members, which has a half-circle cross-section, with the ring 21 in an annular shape.
Now referring to Fig. 3, the pipe joint in accordance with the present invention comprises a main body 10 provided with an outward
tapered portion 12 at its open end, an inward annular protrusion 11 in
which a pipe is seated, and a male thread 10a formed on outer surface; a packing 23 inserted into the tapered portion 12; and a cap nut 32 having a downward annular protrusion 31 to bias downwardly the packing 23 into the tapered portion 12, and a female thread therein to
engage with the male thread 10a. Fig. 4 illustrates a cross-sectional view of the pipe joint on the completion of the insertion of the pipe and fastening of the cap nut. As shown in Fig. 4, the pipe 30 is inserted into the joint to be seated onto
the inward annular protrusion 11. As the cap nut 32 is engaged with the main body 10 along the thread portion 10a, the number of tongues 20 of the zigzagged ring 21 and the elastic rubber 22 are pressurized against the tapered portion 12. The zigzagged ring 21 and the elastic
rubber 22 cooperate to provide a firm fixing and sealing between the
pipe and the joint. The tongues of the ring is biased downwardly by the cap nut 32 to fasten the pipe to the joint, thereby preventing the pipe from separating from the joint.
Hereinafter, the operation of the pipe joint will be described in
connection with the accompanying drawings.
Firstly, the packing 23 is inserted into the tapered portion 12 of the main body 10, then the cap nut 32 is engaged with the thread portion 10a of the main body 10. After the pipe is located into the
inward annular protrusion 11 of the main body 10, the downward
annular protrusion 31 of the cap nut 32 is downwardly moved along the thread portion 10a to bias the packing 23 against the tapered portion 12 of the main body 10 and the outer surface of the pipe 30. As the
packing 23 is pressurized against the pipe 30, the number of tongues 20 of the zigzagged ring 21 are wedged onto the outer surface of the
pipe 30 and elastic rubber 22 and 22a are distorted between the tapered portion 12 and the pipe 30. Consequently, the zigzagged ring and the elastic rubber cooperate to provide a firm fixing and sealing between the pipe and the joint, thereby preventing the pipe from separating from the joint.
In addition, the cooperation of the tongues and the rubber prevents the separation of the pipe and offers very excellent watertight and sealing effects by the semicircular cross-section uniformly deformed
and pressed to the pipe.
Further, the pipe joint in accordance with the present invention has a simplified structure and no threaded groove for inserting the
clamp ring, O-ring or stop ring, to provide a relatively small diameter of
the joint and to make the pipe having a reduced thickness, thereby
enabling a manufacture of cost-effective joint and pipe, making a raw material saved and lowering the working time taken for connecting the pipe joint and the pipe.
INDUSTRIAL APPLICABILITY
The present invention relates to a pipe joint comprising a packing provided with a zigzagged ring having a number of tongues, and an
elastic rubber integrated with the ring in annular shape. The zigzagged ring and the elastic rubber cooperate to provide a firm fixing and sealing between the pipe and the joint.
The pipe joint in accordance with the present invention has a
simplified structure to provide a relatively small diameter of the joint, and no threaded groove on the pipe to make the pipe having a reduced
thickness, thereby enabling a manufacture of cost-effective joint and pipe.

Claims

1. A pipe joint comprising: a main body (10) provided with an outward tapered portion (12)
at its open end, an inward annular protrusion (11) in which a pipe is
seated, and a male thread (10a) on outer surface; a packing (23) inserted into the tapered portion (12); and a cap nut (32) having a downward annular protrusion (31) to
bias downwardly the packing (23) into the tapered portion (12), and a
female thread therein to engage with the male thread (10a)'.
2. The pipe joint of claim 1, wherein said packing is provided with
a zigzagged ring 21 having a number of tongues 20 and 20a, and an'
elastic rubber 22 and 22a integrated with the ring 21 in annular shape.
PCT/KR2002/002433 2002-01-11 2002-12-26 Pipe joint WO2003058109A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002359033A AU2002359033A1 (en) 2002-01-11 2002-12-26 Pipe joint

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20-2002-0000901 2002-01-11
KR2020020000901U KR200270031Y1 (en) 2002-01-11 2002-01-11 Pipe joint

Publications (1)

Publication Number Publication Date
WO2003058109A1 true WO2003058109A1 (en) 2003-07-17

Family

ID=32291525

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2002/002433 WO2003058109A1 (en) 2002-01-11 2002-12-26 Pipe joint

Country Status (3)

Country Link
KR (1) KR200270031Y1 (en)
AU (1) AU2002359033A1 (en)
WO (1) WO2003058109A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBS20080139A1 (en) * 2008-07-21 2010-01-22 Beretti Snc Di Beretti & C CLOSING SYSTEM O-RING GASKET ON THREE SIDES
CN110486547A (en) * 2019-07-23 2019-11-22 北京市平谷区水利工程公司 A kind of pipe connecting structure and attaching method thereof
WO2020037744A1 (en) * 2018-08-21 2020-02-27 石家庄东远散热技术有限公司 Quick joint for computer hard tube water cooling

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4791716A (en) * 1986-03-27 1988-12-20 Jean Walterscheid Gmbh Method and apparatus for securing a connector to a pipe
DE4041679A1 (en) * 1990-12-22 1992-06-25 Voss Armaturen Screw connection esp. for metal pipes - has basic part with externally threaded socket, on which is clamping unit, with sealing ring
EP0511460A2 (en) * 1991-03-30 1992-11-04 Metallwerke Gebr. Seppelfricke GmbH & Co. Plastic pipe screw connection
DE4319884A1 (en) * 1993-06-16 1994-12-22 Voss Armaturen Pipe screw-connection with cutting ring and additional circumferential seal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4791716A (en) * 1986-03-27 1988-12-20 Jean Walterscheid Gmbh Method and apparatus for securing a connector to a pipe
DE4041679A1 (en) * 1990-12-22 1992-06-25 Voss Armaturen Screw connection esp. for metal pipes - has basic part with externally threaded socket, on which is clamping unit, with sealing ring
EP0511460A2 (en) * 1991-03-30 1992-11-04 Metallwerke Gebr. Seppelfricke GmbH & Co. Plastic pipe screw connection
DE4319884A1 (en) * 1993-06-16 1994-12-22 Voss Armaturen Pipe screw-connection with cutting ring and additional circumferential seal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBS20080139A1 (en) * 2008-07-21 2010-01-22 Beretti Snc Di Beretti & C CLOSING SYSTEM O-RING GASKET ON THREE SIDES
WO2020037744A1 (en) * 2018-08-21 2020-02-27 石家庄东远散热技术有限公司 Quick joint for computer hard tube water cooling
CN110486547A (en) * 2019-07-23 2019-11-22 北京市平谷区水利工程公司 A kind of pipe connecting structure and attaching method thereof

Also Published As

Publication number Publication date
AU2002359033A1 (en) 2003-07-24
KR200270031Y1 (en) 2002-03-27

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