EP2286131A1 - Gelenkmuffe für rohre - Google Patents
Gelenkmuffe für rohreInfo
- Publication number
- EP2286131A1 EP2286131A1 EP09735596A EP09735596A EP2286131A1 EP 2286131 A1 EP2286131 A1 EP 2286131A1 EP 09735596 A EP09735596 A EP 09735596A EP 09735596 A EP09735596 A EP 09735596A EP 2286131 A1 EP2286131 A1 EP 2286131A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- joint sleeve
- funnel
- housing
- joint
- constriction
- 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.)
- Withdrawn
Links
- 230000008878 coupling Effects 0.000 claims description 37
- 238000010168 coupling process Methods 0.000 claims description 37
- 238000005859 coupling reaction Methods 0.000 claims description 37
- 238000007789 sealing Methods 0.000 claims description 28
- 239000012530 fluid Substances 0.000 abstract description 3
- -1 Polypropylene Polymers 0.000 description 9
- 239000004743 Polypropylene Substances 0.000 description 9
- 229920001155 polypropylene Polymers 0.000 description 9
- 230000007704 transition Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000001746 injection moulding Methods 0.000 description 6
- 230000004323 axial length Effects 0.000 description 3
- 238000007373 indentation Methods 0.000 description 3
- 238000010102 injection blow moulding Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- F16L27/00—Adjustable joints; Joints allowing movement
- F16L27/10—Adjustable joints; Joints allowing movement comprising a flexible connection only
- F16L27/1017—Joints with 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
- F16L27/00—Adjustable joints; Joints allowing movement
- F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
- F16L27/026—Universal and axially displaceable joints
Definitions
- the invention relates to a joint sleeve for pipes, comprising: two funnel-shaped sections each having a smaller and a larger funnel opening, the larger funnel openings facing each other.
- Such a joint sleeve is known from DE 1 858 500.
- the joint sleeve works essentially according to the principle that at least one introduced through the smaller funnel opening into the joint sleeve tube can be moved due to a game in the funnel-shaped portion in different inclination positions of a tube axis relative to a sleeve axis.
- problems that arise in the flow through the joint sleeve with a fluid are not sufficiently solved.
- an offset on the projecting into the joint sleeve, free end of the tube e.g. an offset on the projecting into the joint sleeve, free end of the tube.
- the invention has for its object to solve the problems known from the prior art.
- the joint sleeve for pipes is provided according to claim 1, which comprises: two funnel-shaped sections each having a smaller and a larger funnel opening, the larger funnel openings facing each other, wherein between the funnel-shaped sections formed a constriction is.
- the constriction which is to be understood as any cross-sectional constriction relative to the larger funnel openings, forms a hydraulically favorable stop in the middle of the joint sleeve.
- the constriction may limit a maximum insertion length of a tube to be inserted into the joint sleeve. It may prove helpful if the joint sleeve has a mirror-symmetrical and / or rotationally symmetrical structure. As a result, the joint sleeve is usually easier to manufacture and independent of direction.
- At least one of the funnel-shaped sections has a conical or truncated conical or truncated pyramidal shape.
- the conical or truncated conical configuration of at least one of the funnel-shaped sections proves to be practical in order to articulate circular pipes to the joint sleeve in an articulated manner.
- a truncated pyramidal configuration of a funnel-shaped portion e.g. a desired pivoting movement direction of a rectangular or square tube with respect to the joint sleeve can be specified.
- the smaller opening of at least one of the funnel-shaped sections opens into a mouth section which has a larger inner circumference than the smaller opening of the funnel-shaped section opening therein.
- the smaller opening of the funnel-shaped portion may form a bearing for a pipe inserted into the joint sleeve housing when the pipe is pivoted relative to the joint sleeve housing.
- the constriction has a smaller inner circumference than the smaller opening of both funnel-shaped sections.
- a pipe with a tube diameter matched to the smaller opening can not be pushed through the constriction.
- a gap between the inner wall of the joint sleeve housing and the pipe can be reduced, so that a transition from the pipe to the joint sleeve housing in hydraulic terms is further improved.
- the joint sleeve has a coupling device for movably coupling a pipe to a joint socket housing.
- the coupling device preferably accomplishes a fluid-tight and airtight connection of the tube with respect to the joint sleeve housing, wherein the tube relative to the joint sleeve housing in the sealed state in different inclination positions of the tube axis relative to the sleeve axis is adjustable.
- the coupling device is connectable to the joint sleeve housing, preferably releasably connectable.
- different coupling devices eg for different pipe diameters can be coupled and decoupled with a joint sleeve housing. This facilitates the (dis) assembly process between the pipe and the joint socket housing.
- the coupling device is easier to replace in case of failure.
- the coupling device has a bearing section which can be brought into contact with the pipe and a fastening section which can be fixed to the joint socket housing.
- the contact section and the fastening section can be designed accordingly for the functions to be performed.
- the attachment portion should accomplish a secure coupling of the coupling device to the joint sleeve housing, under the proviso of ease of use and ease of mounting.
- the contact section is intended to accomplish a fluid-tight and airtight sealing of the pipe with respect to the joint sleeve housing, with the proviso of a possibly highest level of tightness with high flexibility.
- the abutment portion is preferably annular, with a plurality of attachment portions projecting from the abutment portion around the circumference of the abutment portion.
- the coupling device is preferably made of a flexible material, e.g. Polypropylene, manufactured.
- an inner circumference of the contact portion of the coupling device is substantially equal to an inner circumference of the smaller opening of the funnel-shaped portion.
- a game of the tube relative to the joint sleeve housing is largely limited and the joint receives a substantially rigid and solid structure.
- the abutment portion relative to the mounting portion is movable so as to hold the tube in different inclination positions of a tube axis relative to a sleeve axis.
- pipes can be coupled without tension and fluid-tight in an angular position to each other via the joint sleeve according to the invention.
- an inner wall of a joint sleeve housing and / or arranged on the inner wall of the joint sleeve housing elastic sealing means forms the constriction.
- the flexible joint housing forms the constriction and includes a hard stop for a pipe to be inserted to restrict a maximum insertion length of the pipe into the joint sleeve housing.
- the inner wall of the joint sleeve housing is usually little yielding, so that the constriction prevents puncture of the pipe even with large force.
- the sealing device forms the constriction with a hydraulically favorable transition from the tube into the joint sleeve housing, since the sealing device is resilient and a gap between the joint sleeve housing and the end of the inserted
- Seals pipe in any inclined position of the pipe relative to the joint sleeve housing may also superimpose a constriction of the joint sleeve housing so that the inner wall of the joint sleeve housing and the sealing means together form the constriction.
- the sealing device has at least one hollow chamber. Through the hollow chamber, the flexibility and flexibility of the sealing device can be selectively adjusted and improved at the desired location.
- the sealing device is designed such that it seals a gap between a tube inserted into the joint sleeve housing and the inner wall of the joint sleeve housing, preferably in each inclined position of the tube relative to the joint sleeve housing.
- the risk of leakage between the pipe and joint sleeve housing can be reduced.
- the sealing device is designed such that it seals gaps between tubes which are inserted into the joint sleeve housing, and the inner wall of the joint sleeve housing on both sides of the constriction, preferably in each inclined position of the two tubes relative to the joint sleeve housing.
- a sealing device thus seals two gaps between two pipes and the joint sleeve housing.
- Figure 1 shows a sectional view of a joint sleeve according to the invention according to a first embodiment of the invention in the coupling state with a pipe.
- Figure 2 shows a sectional view of a joint sleeve according to the invention according to a second embodiment of the invention.
- Figure 3 shows a sectional view of a joint sleeve according to the invention according to a second embodiment of the invention in the coupling state with two tubes.
- the invention relates to a joint sleeve 1 for pipes, comprising: two funnel-shaped sections 3, 4 each having a smaller 31, 32 and a larger funnel opening 41, 42, the larger funnel openings 41, 42 facing each other, wherein between the funnel-shaped sections 3rd , 4 a constriction 6 is formed.
- An articulated sleeve housing comprises a sleeve inlet 2, the funnel-shaped sections 3 and 4, a sleeve outlet 5 and the constriction 6 formed between the funnel-shaped sections 3 and 4.
- One mouth section 7 forms the sleeve inlet 2 and the sleeve outlet 5, respectively.
- the articulated sleeve housing is preferably made in one piece e.g. as injection molded plastic, preferably polypropylene.
- Each funnel-shaped section 3 and 4 extends between a smaller opening 31, 41 and a larger opening 32, 42 with an inner periphery steadily increasing towards the larger opening 32, 42 and a cross-sectional area steadily increasing towards the larger opening 32, 42.
- the funnel-shaped sections 3 and 4 may have different shapes, eg different cross-sectional shapes or lengths. At least one of the funnel-shaped sections 3, 4 may have a conical or truncated conical or truncated pyramidal shape. However, the funnel-shaped sections 3 and 4 preferably have a mirror-symmetrical and overall rotationally symmetrical construction for constriction 6.
- the larger openings 32, 42 of the funnel-shaped sections 3 and 4 are always facing each other.
- the so-called double conical variant is preferred, the diverging section 3 and the converging section 4 being essentially conical.
- the entire joint sleeve 1 preferably has a mirror-symmetrical and rotationally symmetrical structure.
- the joint sleeve 1 can be used independently of direction. Depending on the flow direction of the joint sleeve 1, the sleeve inlet 2 then forms the sleeve outlet 5 and vice versa.
- the smaller opening 31, 41 of the funnel-shaped sections 3, 4 opens into a mouth section 7, which has a larger inner circumference than the opening therein smaller opening 31, 41 of the funnel-shaped section 3, 4 itself.
- the constriction 6 between the larger openings 32, 42 of the funnel-shaped sections 3 and 4 has a smaller inner circumference than the smaller opening 31, 41 of the two funnel-shaped sections 3, 4.
- a coupling device 8 is connectable to the joint sleeve housing for movably coupling a pipe 9 to the joint sleeve housing.
- the coupling device 8 comprises a contact section 81 which can be brought into contact with the pipe 9 and a fastening section 82 which can be fixed to the joint socket housing.
- An inner circumference of the contact section 81 of the coupling device 8 is substantially equal to an inner circumference of the smaller opening 31, 41 of the funnel-shaped section 3, 4th
- the abutment portion 81 is movable relative to the attachment portion 82 to hold the tube 9 in different inclination positions of a tube axis R with respect to a sleeve axis M.
- the coupling device 8 is formed substantially annular, wherein the abutment portion 81 forms a closed ring, from which mounting portions 82 project in the axial direction, which are arranged in the circumferential direction at regular intervals.
- the coupling device 8 is made in one piece from a flexible plastic, preferably polypropylene.
- the constriction 6 is formed by a wave-shaped curvature of the inner wall of the joint sleeve housing and / or an elastic sealing device 10 arranged on the inner wall of the joint sleeve housing.
- the sealing device 10 is designed as a closed annular profile body and preferably comprises on each side of the constriction 6 at least one hollow chamber.
- the sealing device 10 is configured to seal gaps between tubes 9 inserted into the joint sleeve housing and the inner wall of the joint sleeve housing on both sides of the constriction 6 in any tilted positions of the tubes with respect to the joint sleeve housing.
- the size specifications given include general tolerances according to DIN ISO 2786 m.
- Variant 1 Joint sleeve 1 for pipe diameter 200 mm
- Symmetry Mirror-symmetric to the narrowest cross-section 62 of the constriction 6; Rotational symmetry to the sleeve axis A - Funnel-shaped sections 3 and 4:
- Diameter of the smaller opening 31, 41 202.4 mm
- Axial distance between smaller and larger opening 70 mm • Inclination angle of the inner wall 33, 43 opposite the sleeve axis M: 3.75 °
- Diameter of the narrowest cross section 62 190 mm Radius at the transition of the flanks 61 to the narrowest cross section 62: 7 mm Radius at the transition of the flanks 61 to the funnel-shaped sections 3 and 4: 4.5 mm • Axial distance between the larger openings of the funnel-shaped sections 3 and 4: 30.0 mm
- Coupling device 8 • Shape: shot, annular profile body
- Constriction 6 Material: Polypropylene Production: Injection Molding / Blow Molding Wall Thickness: 7.0 mm • Symmetry: Mirror-symmetric to the narrowest cross-section 62 of the constriction 6;
- Shape Wavy indentation of the wall of the joint sleeve housing • Inclination angle of the flanks 62 of the constriction 6 with respect to the sleeve axis M: 50 °
- Diameter of the narrowest cross section 62 239.0 mm radius at the transition of the flanks 61 to the narrowest cross section 62: 11 mm radius at the transition of the flanks 61 to the funnel-shaped sections 3 and 4: 5.5 mm
- Axial distance between the larger openings of the funnel-shaped sections 3 and 4 38.0 mm
- Shape closed, ring-shaped profile body Material: Polypropylene Production: Injection molding process • Internal diameter of abutment section 81: 250 mm
- Variant 3 Joint sleeve 1 for pipe diameter 315 mm
- Shape Wavy indentation of the wall of the joint sleeve housing • Inclination angle of the flanks 62 of the constriction 6 with respect to the sleeve axis M: 50 °
- Diameter of the narrowest cross section 62 302.0 mm radius at the transition of the flanks 61 to the narrowest cross section 62: 14 mm radius at the transition of the flanks 61 to the funnel-shaped sections 3 and 4: 6.5 mm
- Opening diameter of the mouth portion 7 at the end of the protrusion portion 71 334.0 mm
- Axial length of the retaining rib 3 mm - Coupling device 8:
- Shape shot, annular profile body
- FIG. 1 shows a sectional view of a joint socket 1 according to the invention in a coupling state with a tube 9.
- the first embodiment of the invention is based on a joint sleeve 1 according to one of the variants 1 to 3.
- the coupling device 8 Before the introduction of the tube 9 in a mouth portion 7 of the joint sleeve 1, the coupling device 8 is pushed onto the tube 9, so that the abutment portion 81 rests against the outer circumference of the tube 9. The tube 9 is then inserted into the funnel-shaped section 3 approximately up to the larger opening 32. The coupling device 8 is then pushed onto the mouth portion 7, so that the attachment portion 82, which has a detent-acting circumferential inner projection or a plurality of axially projecting and, for example, flexibly formed latching hooks, engages in the engagement groove between the projection portion 71 and the retaining rib 72.
- the coupling device 8 is coupled to the mouth section 7 and the tube 9 sealed against the joint sleeve housing fluid and airtight.
- the coupling device 8 can be decoupled from the mouth portion 7 again, when the mounting portion 82 is disengaged from the engagement groove.
- the contact section 81 can be moved relative to the attachment section 82 in order to pivot the tube 9 in the sealed state into the desired inclination position of the tube axis R with respect to the sleeve axis M.
- the constriction 6 is made smooth on its inner surface, all surface transitions are rounded. This is hydraulically advantageous, as well as the inclination of the tube axis is facilitated because it can lead to no tilting of the tubes.
- a second tube can be inserted in the same way in the other mouth portion 7 of the joint sleeve 1 and coupled via the coupling means 8 with the joint sleeve housing substantially liquid-tight and airtight.
- Figure 2 shows a sectional view of a joint sleeve 1 according to the invention according to a second embodiment of the invention.
- the joint sleeve 1 of the second embodiment is based on a joint sleeve 1 of the first embodiment.
- a sealing device 10 which is designed as a closed, annular profile body, is arranged radially in the manner shown in FIG. 2 within the wave-shaped curvature of the joint sleeve housing wall, which forms the constriction 6 in the first exemplary embodiment.
- the sealing device 10 superimposed on the undulating curvature of the joint sleeve housing wall inside and forms the narrowest point of the constriction 6.
- an outer contour of the sealing device 10 is adapted to the inner contour of the joint sleeve housing wall that the sealing device 10 symmetrical to the narrowest cross-section and the entire surface circumferentially with the Inner contour of the joint sleeve housing wall sealingly engageable.
- two circumferential hollow chambers are formed on both sides of the narrowest point of the constriction.
- Figure 3 shows a sectional view of a joint sleeve according to the invention according to a second embodiment of the invention in the coupling state with two tubes.
- the tubes 9 are, as described in the first embodiment, coupled via coupling means 8 with the joint sleeve housing.
- the tubes 9 are introduced into the joint socket housing so far that the pipe ends located in the joint socket housing abut the sealing device 10.
- the tubes 9 can be pivoted in the manner described above in the desired inclination position of the tube axis R relative to the sleeve axis M.
- the sealing device 10 is designed so that gaps between tubes 9 and the inner wall of the joint sleeve housing are sealed on both sides of the constriction in each inclined position of the tube axis R relative to the sleeve axis M.
- the sealing device 10 can be deformed in the manner illustrated in FIG.
- the intermediate coupling means 8 can be elastically or plastically deformed in order to couple the tubes 9 with respect to the joint sleeve housing substantially stress-free.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200820005805 DE202008005805U1 (de) | 2008-04-25 | 2008-04-25 | Gelenkmuffe für Rohre |
| PCT/EP2009/002699 WO2009129946A1 (de) | 2008-04-25 | 2009-04-11 | Gelenkmuffe für rohre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2286131A1 true EP2286131A1 (de) | 2011-02-23 |
Family
ID=40904145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09735596A Withdrawn EP2286131A1 (de) | 2008-04-25 | 2009-04-11 | Gelenkmuffe für rohre |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2286131A1 (de) |
| DE (1) | DE202008005805U1 (de) |
| WO (1) | WO2009129946A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022130887A1 (de) * | 2022-11-22 | 2024-05-23 | Veritas Ag | Verbindungselement |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1858500U (de) | 1960-09-28 | 1962-09-13 | Hermann Sen Seelbach | Rohrgelenkverbindung. |
| CH406756A (de) * | 1962-09-08 | 1966-01-31 | Keller Emil | Steckkupplung für Druckrohre |
| DK115746B (da) * | 1965-07-31 | 1969-11-03 | Univex Plastics Ltd | Rørkobling. |
| DE9404481U1 (de) * | 1994-03-16 | 1994-05-26 | Thyssen Polymer GmbH, 81671 München | Gelenkrohr |
| US6709024B1 (en) * | 2000-09-27 | 2004-03-23 | General Electric Company | Method and apparatus for assembling couplings for transferring fluids |
| JP2003294178A (ja) * | 2002-03-29 | 2003-10-15 | Kawasaki Factory Kk | 管路用管 |
-
2008
- 2008-04-25 DE DE200820005805 patent/DE202008005805U1/de not_active Expired - Lifetime
-
2009
- 2009-04-11 WO PCT/EP2009/002699 patent/WO2009129946A1/de not_active Ceased
- 2009-04-11 EP EP09735596A patent/EP2286131A1/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009129946A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202008005805U1 (de) | 2009-09-03 |
| WO2009129946A1 (de) | 2009-10-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20101117 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA RS |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: F16L 27/10 20060101ALI20120307BHEP Ipc: F16L 27/02 20060101AFI20120307BHEP |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20120831 |