WO2009012622A1 - Structure de raccordement de tuyau métallique - Google Patents

Structure de raccordement de tuyau métallique Download PDF

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Publication number
WO2009012622A1
WO2009012622A1 PCT/CN2007/002747 CN2007002747W WO2009012622A1 WO 2009012622 A1 WO2009012622 A1 WO 2009012622A1 CN 2007002747 W CN2007002747 W CN 2007002747W WO 2009012622 A1 WO2009012622 A1 WO 2009012622A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
structure according
convex arc
pipe body
sealing ring
Prior art date
Application number
PCT/CN2007/002747
Other languages
English (en)
Chinese (zh)
Inventor
Fan Ouyang
Weiguang Luo
Ning Huang
Libin Huang
Original Assignee
Fan Ouyang
Weiguang Luo
Ning Huang
Libin Huang
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 Fan Ouyang, Weiguang Luo, Ning Huang, Libin Huang filed Critical Fan Ouyang
Publication of WO2009012622A1 publication Critical patent/WO2009012622A1/fr

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
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
    • F16L19/028—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall
    • 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
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
    • F16L23/028—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder
    • F16L23/0283—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder the collar being integral with the pipe

Definitions

  • This invention relates to the field of fluid and gas delivery tube connections and, more particularly, to a sealed tubular metal fitting.
  • the traditional metal pipe connection methods are mainly compression type, welding type and groove type.
  • the disadvantages of the press type and the welded type are that the installation requirements are relatively high, and it is difficult to disassemble after installation; the groove type is disadvantageous in that the tensile force is low, the looseness is liable to occur, and when the pipe is produced
  • the wall thickness of the pipe is reserved as the remaining amount of the groove, so that the thickness of the pipe is much higher than the size set by the actual fluid pressure. It is because of the unreasonable connection structure that the metal material of the pipe is wasted a lot.
  • the cost is too high; however, when the pipe weld is subjected to the joint processing, the pipe crevice damage is likely to occur, thereby affecting the sealing performance.
  • the object of the present invention is to provide a metal pipe joint structure which is not only firmly connected, has good sealing performance, and can avoid damage to pipe quilting, in order to solve the deficiencies of the prior art.
  • a metal pipe connecting structure including a pipe body and a pipe joint, the pipe joint is sleeved at an end of the pipe body, and the end portion of the pipe body is convex.
  • the convex arc is provided with a sealing ring on the pipe near the pipe mouth section, and the connecting pipe is arranged on the other side of the convex arc, and the inner wall of the pipe joint is provided with a stepped hole corresponding to the sealing ring on the pipe, the pipe The end face of the joint is correspondingly connected to the connecting member on the pipe body.
  • the connecting member on the pipe body is a nut, and the end surface of the pipe joint is provided with an external thread matched with the nut, and a retaining ring is arranged between the sealing ring and the convex arc.
  • the seal ring, the convex arc and the retaining ring are all enclosed inside the nut.
  • the end of the sealing ring is provided with a slope, the slope is inclined toward the tube body, and the oblique angle is
  • the convex arc is a convex curved surface band which is embossed at the pipe for one or more segments, and the convex curved surface band is a curved surface band of a regular shape, and the curved surface band has an angle equal to the surface of the pipe.
  • the convex curved surface strip is an irregularly shaped curved surface strip.
  • the angle between the convex curved surface of the ridge at the pipe and the surface of the pipe is 15 to 90°.
  • the connecting member on the pipe body is a flange, and the end surface of the flange is provided with a plurality of screw holes, and the screw holes are provided with connecting bolts, and the end faces of the pipe joints are provided with screw holes corresponding to the flange connecting bolts.
  • the sealing ring is embedded in the stepped hole, and the convex arc at the end of the pipe body is disposed outside the stepped hole of the pipe joint, and the convex arc is clamped between the flange and the sealing ring.
  • the sealing ring is a silicone ring.
  • the invention adopts the convex arc of the end of the pipe body, and then cooperates with the sealing ring and the flange connection or other pipe connection, the pipe body itself does not need to be subjected to the damaging cutting process.
  • the wall thickness of the pipe body can be set directly according to the need, without the need to reserve the machining allowance, the metal consumption of the pipe body is greatly reduced, and the production cost is greatly reduced.
  • the connection position of the pipe end is high in compressive tensile strength, the connection is simple, firm, and the sealing property is good.
  • FIG. 1 is a partial cross-sectional structural view of an embodiment of the present invention
  • FIG. 2 is a partial cross-sectional structural view showing another embodiment of the present invention.
  • FIG. 3 is a schematic partial cross-sectional structural view of the end portion of the tubular body of the invention.
  • FIG. 4 is a partial cross-sectional structural view showing another embodiment of a convex arc at the end of the tubular body of the present invention.
  • the metal pipe climbing structure of the present invention comprises a pipe body 1, a pipe joint 2, and a pipe joint 2 is sleeved at an end of the pipe body 1, and the end of the pipe body 1 is convexly raised.
  • the convex arc 3 is a convex curved surface band which is embossed at the pipe for one or more segments, and the convex curved surface band is a curved surface band of a regular shape, the curved band having an angle ⁇ equal to the surface of the pipe, the convexity
  • the angle between the curved surface and the surface of the pipe is 15 ⁇ 90°.
  • the sealing ring 4 is provided on the pipe near the pipe mouth of the convex arc 3.
  • the sealing ring 4 is a silicone ring, and the other side of the convex arc 3 is provided with a sealing ring.
  • the connecting member 4 the inner wall of the pipe joint 2 is provided with a stepped hole 5 corresponding to the convex arc 3 of the pipe body, and the end surface of the pipe joint 2 is correspondingly connected with the connecting member 4 on the pipe body 1, in this embodiment, on the pipe body
  • the connecting member 4 is a nut 6.
  • the end surface of the pipe joint 2 is provided with an external thread 7 matched with the nut 6.
  • a sealing ring 11 is arranged between the sealing ring 4 at the end of the pipe body and the convex arc 3, and the sealing is sealed.
  • the ring 4, the convex arc 3 and the retaining ring 6 are all enclosed inside the nut, and the end of the sealing ring is provided with a slope, the inclined surface Direction of the tubular body inclined angle of 15 ⁇ 90 °.
  • the convex curved surface strip is an irregularly shaped curved strip
  • the connecting member 4 on the tubular body 1 is a flange 8.
  • the end face of the flange 8 is provided with a plurality of screw holes 9, and the screw holes 9 are provided with a connecting bolt 10, and the end surface of the pipe joint 2 is provided with a screw hole 9 corresponding to the bolt connecting the flange 8', and the sealing ring is embedded in the pipe
  • the convex arc of the end of the pipe body is disposed outside the stepped hole of the pipe joint, and the convex arc is clamped between the flange and the seal ring.
  • the outer convex strip length may be greater than half of the circumference of the pipe, or may be configured as a plurality of distributed bumps on the circumference of the pipe, and any person skilled in the art may make various modifications and Variations, without departing from the spirit of the invention, are within the scope of the invention as claimed.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)

Abstract

L'invention concerne une structure de raccordement de tuyau métallique qui consiste en un corps de tuyau (1) et un raccord de tuyau (2). Une extrémité du corps de tuyau (1) est ajustée dans le raccord de tuyau (2). Un cordon externe (3) est formé près de l'extrémité du corps de tuyau (1) et présente une face incurvée régulière ou irrégulière. Une bague d'étanchéité (4) est montée sur le côté du cordon externe (3) qui est proche de l'ouverture du corps de tuyau (1), et un élément de couplage (6, 8) sur le corps de tuyau (1) est positionné sur l'autre côté du cordon externe (3). Un trou d'enveloppe (5) est positionné dans la paroi interne du raccord de tuyau (2) qui est amené à correspondre à la bague d'étanchéité (4). La face d'extrémité du raccord de tuyau (2) est reliée à l'élément de jonction (6, 8) sur le corps de tuyau (1).
PCT/CN2007/002747 2007-07-23 2007-09-18 Structure de raccordement de tuyau métallique WO2009012622A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU2007200544453U CN201066004Y (zh) 2007-07-23 2007-07-23 一种金属管连接结构
CN200720054445.3 2007-07-23

Publications (1)

Publication Number Publication Date
WO2009012622A1 true WO2009012622A1 (fr) 2009-01-29

Family

ID=39483181

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/002747 WO2009012622A1 (fr) 2007-07-23 2007-09-18 Structure de raccordement de tuyau métallique

Country Status (2)

Country Link
CN (1) CN201066004Y (fr)
WO (1) WO2009012622A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE535387C2 (sv) * 2010-07-09 2012-07-17 Kungsoers Plast Ab Röranslutning
CN102563246A (zh) * 2010-12-14 2012-07-11 杨顺福 汽车空调的密封管道接头
CN102313086B (zh) * 2011-08-23 2013-02-06 重庆顾地塑胶电器有限公司 螺套式钢塑复合管内胀连接结构
EP2896864A1 (fr) 2014-01-21 2015-07-22 Siemens Aktiengesellschaft Système de connexion
CN103775760A (zh) * 2014-02-16 2014-05-07 李军 一种直接式液压气动管连接件
CN109013471A (zh) * 2018-07-17 2018-12-18 安徽京冠派克流体科技有限公司 一种便于安装的清洗用水管

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19941577A1 (de) * 1999-09-01 2001-03-29 Parker Hannifin Gmbh Rohrverbindung und Verfahren zu ihrer Herstellung
DE10313678B3 (de) * 2003-03-26 2004-06-03 Eifeler Maschinenbau Gmbh Rohrverbindung mit einem umgeformten Rohr
CN1210514C (zh) * 1999-11-30 2005-07-13 帕克汉尼芬有限公司 管联接器及其制造方法和装置
DE102005026580B3 (de) * 2005-06-08 2006-06-22 Eifeler Maschinenbau Gmbh Rohrverbindung mit einem umgeformten Rohr
CN2872041Y (zh) * 2005-10-25 2007-02-21 黄美娣 有焊缝薄壁不锈钢管的连接结构

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19941577A1 (de) * 1999-09-01 2001-03-29 Parker Hannifin Gmbh Rohrverbindung und Verfahren zu ihrer Herstellung
CN1210514C (zh) * 1999-11-30 2005-07-13 帕克汉尼芬有限公司 管联接器及其制造方法和装置
DE10313678B3 (de) * 2003-03-26 2004-06-03 Eifeler Maschinenbau Gmbh Rohrverbindung mit einem umgeformten Rohr
DE102005026580B3 (de) * 2005-06-08 2006-06-22 Eifeler Maschinenbau Gmbh Rohrverbindung mit einem umgeformten Rohr
CN2872041Y (zh) * 2005-10-25 2007-02-21 黄美娣 有焊缝薄壁不锈钢管的连接结构

Also Published As

Publication number Publication date
CN201066004Y (zh) 2008-05-28

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