CN1106520C - 无螺栓的管接头 - Google Patents

无螺栓的管接头 Download PDF

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Publication number
CN1106520C
CN1106520C CN98802183A CN98802183A CN1106520C CN 1106520 C CN1106520 C CN 1106520C CN 98802183 A CN98802183 A CN 98802183A CN 98802183 A CN98802183 A CN 98802183A CN 1106520 C CN1106520 C CN 1106520C
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China
Prior art keywords
pipe
sealing
groove
shell
leg
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Expired - Fee Related
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CN98802183A
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CN1246176A (zh
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丹尼尔·格雷哈姆·鲍尔
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • 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
    • F16L37/62—Couplings of the quick-acting type pneumatically or hydraulically actuated

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Joints Allowing Movement (AREA)
  • Joints With Pressure Members (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Gasket Seals (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)

Abstract

一种用于平端头管的管接头，包括一个放在管子上的外壳(7)，一个在外壳(7)的内表面上制出的环绕管子的环形槽(4)，一个位于槽(4)内的密封件(1)，一个在压力下供应油脂的入口(8)，和L形断面的分段式管夹，它包括一个腿(6)和一个具有与管子接合的锯齿形内表面的脚(5)。这种接头在公称管外径的一定范围内具有很宽的允许偏差。

Description

无螺栓的管接头
技术领域
本发明涉及适合连接或邻近平端头管的端头的无螺栓的管接头，以使所述管能够与其他的管、泵、阀门、端盖等相联接。这些接头是通用的，即它们在一定的尺寸范围内有较宽的允许偏差：已给定公称直径的管子外径并不是全部相同。
背景技术
欧洲专利EP727026公开了通过给油脂加压来加紧和密封联接好的管子。这种技术的允许偏差有限，通常适用于直径偏差为4或5mm的管子。管夹最大活动长度大约是管夹厚度的一半，否则它们会从外壳的槽中滑脱出来。
发明内容
按照本发明，位于接头内表面中的一环形凹槽内的一个密封件具有L形断面的分段式管夹，包括一个介于密封件和凹槽壁间的腿，和一个具有与管子接合的锯齿形内表面的脚。这使允许偏差可超过10或15mm，因此管接头可以用于给定公称直径的所有管子。
在相邻管夹的腿之间可以设金属垫片。在密封件的一侧或两侧与凹槽相邻的壁之间可以设管夹。在外壳上设有密封液入口，它可以是压力下供应油脂或油的加油嘴，或是设有使环氧树油脂成型以达到永久密封的零件。外壳上通常设有偏离密封液入口的排气孔，供装配时槽中注满了作为密封液的油脂或油时使用。
附图说明
图1是上述专利EP727026的管接头的半剖面图。
图2是本发明的一个管接头的剖面图；而
图3是图2中的一个管夹的构造图。
图1所示的现有技术的接头中，一个利用高压油脂的机构驱动许多管夹。管夹被从高压油脂枪中来的油脂向下推压至管子上，但仍包在接头外壳中，从而造成动态密封，将弧段形的管夹压在管子上。
具体实施方式
参见图2，管接头包括具有环形槽4的中空金属外壳7。在槽4内有环形聚合物密封件1，它具有与槽4内侧密封接合的内凹外表面和侧翼。每一个有L形断面的分段式管夹都包括一个通过金属垫片3与密封件1接触的腿6和一个具有与管壁接合的锯齿形内表面的脚5。金属垫片3伸过相邻管夹的腿6之间的空隙，允许相邻的腿在密封情况下有相对移动。
装配时，油脂在压力下通过加油嘴8注入槽4内。空气从排气口(图中未示出)排出。安装时，更多的油脂通过加油嘴8从注油枪高压注入，向下压迫密封件1使管夹与管壁接合，这时排气孔关闭。
因为管夹的腿6防止聚合物密封件1伸入外壳7和管壁间的空隙中，所以每个管接头可有更大的允许偏差。油脂向下压密封件1及其翼，以保证其与外壳7紧密接触。当油脂压力增加时，朝管壁方向把聚合物密封件1推向外壳7。聚合物密封件1压迫管夹的脚5使之运动到管壁上。油脂的压力使脚5切入管壁内。管夹脚5之间的空隙允许聚合物密封件1溢至管壁表面上并形成密封，防止了沿管壁外表面的任何泄漏。
金属垫片3防止密封件1挤入管夹的腿6之间并突入相邻管夹腿6的边缘之间。

Claims (4)

1.一种用于平端头管的管接头，包括一个放在管子上的外壳(7)，一个在外壳(7)的内表面中制出的环绕管子的环形槽(4)，一个位于槽(4)内的密封件(1)，和一个向外壳(7)与密封件(1)间的槽(4)中注入密封液的入口(8)，其特征在于，管夹是L形断面的分段式管夹，它包括位于密封件(1)与槽(4)的壁之间的腿(6)，和具有与管子接合的锯齿形内表面的脚(5)。
2.按照权利要求1的管接头，其特征在于，在相邻管夹的腿(6)之间有金属垫片(3)。
3.按照权利要求1或2的管接头，其特征在于，在密封件(1)的每一侧与槽(4)的相邻壁之间有管夹。
4.按照上述任一项权利要求的管接头，其特征在于，入口(8)是在压力下供应油脂的加油嘴。
CN98802183A 1997-07-22 1998-07-20 无螺栓的管接头 Expired - Fee Related CN1106520C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9715483.5A GB9715483D0 (en) 1997-07-22 1997-07-22 Universal boltless pipe connection
GB9715483.5 1997-07-22

Publications (2)

Publication Number Publication Date
CN1246176A CN1246176A (zh) 2000-03-01
CN1106520C true CN1106520C (zh) 2003-04-23

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CN98802183A Expired - Fee Related CN1106520C (zh) 1997-07-22 1998-07-20 无螺栓的管接头

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US (1) US6447018B1 (zh)
EP (1) EP0998643B1 (zh)
JP (1) JP2002532659A (zh)
KR (1) KR20010022080A (zh)
CN (1) CN1106520C (zh)
AU (1) AU740175B2 (zh)
CA (1) CA2297060A1 (zh)
CZ (1) CZ294609B6 (zh)
DE (1) DE69804967T2 (zh)
DK (1) DK0998643T3 (zh)
ES (1) ES2178238T3 (zh)
GB (1) GB9715483D0 (zh)
WO (1) WO1999005442A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60140900D1 (de) * 2001-01-19 2010-02-04 Amidex Coupling Systems Pty Lt Rohrverbindung
GB0208098D0 (en) * 2002-04-09 2002-05-22 Gloway Internat Inc Pipe repair system and device
AU2005268540B2 (en) * 2004-07-28 2010-04-22 Amidex Coupling Systems (Pty) Ltd Pipe coupling
NL1036410C2 (en) * 2009-01-12 2010-07-13 Wavin Bv Push-fit pipe connector with improved gripping assembly.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1984806A (en) * 1933-06-03 1934-12-18 S R Dresser Mfg Co Gasket for pipe joints and clamps
DE1282372B (de) * 1967-11-29 1968-11-07 Hans Lingl Dichtmuffe fuer Rohre, insbesondere Kanalisationsrohre
DE2247804A1 (de) * 1971-09-30 1973-04-12 Hydrotech Services Abdichtende klemmuffe
US3842167A (en) * 1971-10-22 1974-10-15 Lever Brothers Ltd Toothpaste
US4955641A (en) * 1989-02-27 1990-09-11 Dent Larry G Pipe seals used in underground sealed distribution systems
WO1995009318A1 (en) * 1993-09-30 1995-04-06 Daniel Graham Ball Pipe connector

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1800085A (en) * 1929-02-28 1931-04-07 Gammeter Pipe coupling
US2508914A (en) * 1947-03-05 1950-05-23 Nat Tube Co Pipe coupling
US2991092A (en) * 1957-07-05 1961-07-04 American Cast Iron Pipe Co Pipe coupling having a double sealing action gasket
DE1282373B (de) 1966-08-09 1968-11-07 Rasmussen Gmbh Rohrverbinder
US3582112A (en) 1969-04-14 1971-06-01 Francisco A Pico Fluid pressure-sealed pipe coupling
US3844313A (en) 1971-09-30 1974-10-29 Hydrotech Int Inc Apparatus and method for making a test connection to a tubular member
US3860270A (en) * 1971-09-30 1975-01-14 Hydrotech Int Inc Apparatus for effecting a connection to a tubular member or the like
DE2257821C3 (de) * 1972-11-25 1975-09-25 Rheinstahl Ag, 4300 Essen Schubgesicherte Muffenverbindung für Rohre und Rohrelemente
US3843167A (en) 1973-01-31 1974-10-22 B Gronstedt Hydraulically actuated pipe coupling
US4146254A (en) * 1976-03-31 1979-03-27 Bristol Products, Inc. Coupler for tubing
US4381114A (en) * 1981-11-23 1983-04-26 Cameron Iron Works, Inc. Packoff and seal ring assembly with injected plastic packing
GB9307083D0 (en) 1993-04-03 1993-05-26 Ball Daniel G Pipe coupling

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1984806A (en) * 1933-06-03 1934-12-18 S R Dresser Mfg Co Gasket for pipe joints and clamps
DE1282372B (de) * 1967-11-29 1968-11-07 Hans Lingl Dichtmuffe fuer Rohre, insbesondere Kanalisationsrohre
DE2247804A1 (de) * 1971-09-30 1973-04-12 Hydrotech Services Abdichtende klemmuffe
US3842167A (en) * 1971-10-22 1974-10-15 Lever Brothers Ltd Toothpaste
US4955641A (en) * 1989-02-27 1990-09-11 Dent Larry G Pipe seals used in underground sealed distribution systems
WO1995009318A1 (en) * 1993-09-30 1995-04-06 Daniel Graham Ball Pipe connector

Also Published As

Publication number Publication date
CA2297060A1 (en) 1999-02-04
JP2002532659A (ja) 2002-10-02
ES2178238T3 (es) 2002-12-16
DE69804967T2 (de) 2002-10-17
AU740175B2 (en) 2001-11-01
EP0998643B1 (en) 2002-04-17
KR20010022080A (ko) 2001-03-15
CN1246176A (zh) 2000-03-01
WO1999005442A1 (en) 1999-02-04
US6447018B1 (en) 2002-09-10
DK0998643T3 (da) 2002-08-12
DE69804967D1 (de) 2002-05-23
CZ2000254A3 (cs) 2001-01-17
CZ294609B6 (cs) 2005-02-16
EP0998643A1 (en) 2000-05-10
GB9715483D0 (en) 1997-10-01
AU8452298A (en) 1999-02-16

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