EP3894732A1 - Dispositif de raccordement de tubes - Google Patents
Dispositif de raccordement de tubesInfo
- Publication number
- EP3894732A1 EP3894732A1 EP19828980.3A EP19828980A EP3894732A1 EP 3894732 A1 EP3894732 A1 EP 3894732A1 EP 19828980 A EP19828980 A EP 19828980A EP 3894732 A1 EP3894732 A1 EP 3894732A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipe
- holding element
- pipe connection
- connecting elements
- connection arrangement
- 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- Withdrawn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
- 239000004033 plastic Substances 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 238000004064 recycling Methods 0.000 claims description 3
- 210000002105 tongue Anatomy 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000011324 bead Substances 0.000 description 7
- 238000007789 sealing Methods 0.000 description 5
- 210000000078 claw Anatomy 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000004512 die casting Methods 0.000 description 3
- 229920006324 polyoxymethylene Polymers 0.000 description 3
- 229930040373 Paraformaldehyde Natural products 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 208000033999 Device damage Diseases 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- FJMNNXLGOUYVHO-UHFFFAOYSA-N aluminum zinc Chemical compound [Al].[Zn] FJMNNXLGOUYVHO-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- F16L21/00—Joints with sleeve or socket
- F16L21/08—Joints with sleeve or socket with additional locking 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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
- F16L47/12—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with additional locking means
Definitions
- the invention relates to a pipe connection arrangement comprising a pipe with at least one spigot end, a further pipe with at least one socket end, the spigot end of the pipe being inserted into the socket end of the further pipe, and a pipe connection device for fixing the two pipes in the longitudinal direction thereof the pipe connec tion device has at least one annular holding element which can be fixed to the further pipe with the at least one sleeve end for the form-fitting fixing of the pipes.
- Such pipe connection arrangements and pipe connection devices used therein are known from the prior art.
- the pipe connection devices are used to axially fix the pipe connection arrangements before inadvertent pulling apart of the components, which is particularly necessary in the case of large head heights and pressure de-watering (lifting systems, vacuum roof drainage).
- metallic claws or clamps are placed on the connection in pressurized water pipes, these claws or clamps having a high spatial demand and being designed such that they can only be used in pipes with large walls.
- drainage pipes made of plastic are thin-walled and only a very limited space is available for their installation, which excludes the use of clamps or claws known in the prior art.
- DE 20 2005 019 635 U1 therefore proposes a pipe connection device for the positive connection of two plastic pipes, one of which comprises a socket end or a push-in socket and the other a spigot end inserted into the socket end, the pipe connection device comprising two half-shell-like holding elements comprises which encompass at least a portion of the socket end and the tip end and can be braced against one another, the holding element being made of plastic and at least one claw protruding radially inwards over a part-cylindrical bearing surface which can be placed against the outer surface of the tip end element.
- Such a connecting device damages the pipe walls during assembly and thus leads to a pipe weakening.
- the invention has for its object to provide an improved pipe connection arrangement with a pipe connection device which overcomes the disadvantages of the prior art.
- the pipe connection arrangement according to the invention is intended to achieve high operational reliability of a pipe system comprising the pipe connection arrangement, in particular a house drain pipe system.
- the pipe connection arrangement according to the invention should be easy and mountable with a small space requirement and should not lead to any damage to the pipe wall.
- the holding element is annular and serves for the form-fitting fixing of the pipes in the area of their joint.
- the holding element is on one side of a circumferential increase in the sleeve end, for example a bead for receiving a sealing ring or a sleeve crack, angeord net.
- the holding element connecting elements belonging to the holding element overlap the joint of the pipes to be connected and interact with the cooperating pipe connecting elements, for example by latching with them.
- the present invention resides in the provision of a pipe connection arrangement which comprises a pipe with at least one spigot end, a further pipe with a min. at least one socket end, the tip end of the pipe being inserted into the socket end of the further pipe, and comprising a pipe connection device for fixing the two pipes in the longitudinal direction thereof, the pipe connection device having at least one annular holding element which is used for the positive connection of the pipes to the other Pipe can be fixed with the at least one sleeve end, and is characterized according to the invention in that at least two holding element connecting elements are arranged on the holding element, which are connected to corresponding pipe connecting elements of the pipe.
- pipe is intended to include “pipe fittings” such as branches, T-pieces, bends, or the like.
- butt joint is intended to describe the area of the pipe connection arrangement where the pipes abut or the one pipe enters the other if the pipes overlap at the ends.
- the holding element connecting elements are in positive engagement with the pipe connecting elements of the pipe, in particular are locked with them.
- the pipe connection device can withstand high pull-out forces in the axial direction of the pipe to be clamped.
- connection tabs allow compensation for the thermal expansion of the pipes during the intended use of the pipe connection arrangement according to the invention.
- the holding element connecting elements are designed as connecting tongues. This represents a particularly simple embodiment of the Hal teelementijnsetti, which also contributes to easy assembly.
- the pipe connection device between an arrangement opened in the circumferential direction, in which the pipe connection device can be arranged on the further pipe with the at least one socket end, and one in the circumferential direction. device closed arrangement in which the pipe connection device is fixed to the further pipe with the at least one sleeve end can be transferred.
- the pipe connection device is also suitable for repeated use and the pipe connection device can subsequently be installed on the pipe connection arrangement.
- the holding element connecting elements are detachably connected to the holding element.
- different holding element connecting elements in particular holding element connecting elements of variable length and / or with different connecting means to the tube, can be connected to a holding element.
- the number of articles to be kept by the installer and thus his storage can be reduced.
- the holding elements are designed as injection molded plastic parts. As a result, large quantities can be produced easily and inexpensively.
- the pipe connection device is at least partially made of recycling material, that is to say the holding element and / or the holding element connecting elements.
- recycling material contributes to environmental protection and represents a way of reducing costs.
- Each pipe preferably has a socket end at one end and a matching spigot end at the other end, so that pipe chains can be formed from pipes of identical construction.
- the pipes used according to the invention are preferably plastic pipes for the passage of waste water.
- plastic tubes of this type are constructed from a base tube and extruded, band-like layers arranged on the inner and / or outer surface of the base tube.
- the band-like layers are preferably spaced apart from one another.
- the density of the Base pipe material on the density of the material of the band-like layers.
- Such plastic pipes for the passage of waste water are known from DE 10 2006 020 375 A1, the content of which is explicitly referred to in terms of structure, material and manufacture of the plastic pipes.
- the pipes can be cut to the required pipe length at the place of use.
- a lubricant is applied to the outer surface of the pipe on the pipe with the pointed end in the area of the pointed end. Applying a lubricant makes it easier to insert the tip end of the pipe into the socket end of the other pipe. In addition, a relative movement of the tip end and the sleeve end is facilitated due to different thermal expansion, which leads to a sound reduction when using the pipe connection arrangement.
- the pipe connection arrangement according to the invention as well as individual parts thereof can also be produced line by line or layer by layer using a line-building or layer-building manufacturing process (e.g. 3D printing), but production by means of extrusion or, in the case of pipe-shaped parts by means of injection molding, is preferred.
- a line-building or layer-building manufacturing process e.g. 3D printing
- Figure 1 is a view of a pipe connection arrangement according to an embodiment of the present invention
- Figure 2 is a view of a pipe connection arrangement according to an embodiment of the present invention.
- FIG. 3 shows a view of a pipe connection arrangement according to an embodiment of the present invention
- Figure 4 is a view of a pipe connection arrangement according to an embodiment of the present invention
- Figure 5 is a view of a pipe connection arrangement according to an embodiment of the present invention.
- FIG. 1 shows a view of a pipe connection arrangement 1 according to an embodiment of the present invention.
- the embodiment of the pipe connection arrangement 1 according to the invention shown in FIG. 1 comprises two connected pipes 2, 3 and a pipe connection device 7 mounted above the joint 4 of the pipes 2, 3.
- the pipes 2, 3 are preferably plastic sewage pipes, for example polypropylene (PP), preferably with a diameter of 40 to 160 mm and a wall thickness of 1.8 to 3.9 mm.
- the end of the further pipe 3 is designed as a sleeve end 4 or push-in sleeve and has a bead 5.
- a spigot end of the pipe 2 is inserted into the sleeve end 4, the gap between the pipe 2 and the further pipe 3 being sealed by a radially circumferential sealing ring arranged in the bead 5.
- the abutment point 6 marks a mouth of the sleeve end 4 or the point at which the pipe 2 enters the further pipe 3.
- the tube 2 can have a circumferential increase (not shown) that does not fit through the mouth of the sleeve end 4 and thus limits the insertion length of the tube 2.
- This increase in circumference can be a circumferential collar, or can be formed by a plurality of cam-like elevations, and is for example molded on during manufacture or subsequently attached, for example glued or welded on.
- the tube 2 comprises two tube connecting elements 21,
- the pipe connecting elements 21, 21 ' are arranged diametrically to each other along the pipe circumference and designed as tabs.
- the pipe connecting elements 21, 21 ' are preferably molded onto the pipe 2 during the manufacturing process.
- Each pipe preferably has a socket end at one end and a matching spigot end at the other end, so that pipe chains can be formed from pipes of identical construction.
- the pipe connection arrangement 1 further comprises the pipe connection device 7 for connecting the two pipes 2, 3, which in turn comprises a holding element 8 and two holding element connecting elements 9, 9 ' .
- the holding element 8 is annular and is arranged on the side of the bead 5 facing away from the joint 6.
- the holding element connecting elements 9, 9 ' are formed in the embodiment shown in FIG. 1 as connecting tongues and along the circumference of the holding element 8 arranged diametrically to one another.
- the holding element connecting elements 9, 9 ' are integrally formed on the holding element 8 and guided over the joint 6 of the tubes 2, 3.
- the holding element connecting elements 9, 9 ' have locking projections 10, 10 ' .
- the latching projections 10, 10 ' engage behind the tube connecting elements 21, 21 ' of the tube 2 which are designed as tabs, thereby preventing the tip end of the tube 2 from being pulled out unintentionally from the sleeve end 4 of the further tube 3.
- the pipe connection device 7 can also have more than two, in particular three, four, five or more holding element connecting elements, which are preferably arranged at the same distance along the circumference of the annular holding element 8. Accordingly, in such an embodiment, the pipe has a number of pipe connection elements corresponding to the number of holding elements which are arranged along the circumference of the holding element 8 on the circumference of the pipe 2 in accordance with the respective position of the holding element connecting elements.
- the holding element 8 can be arranged between an arrangement which is open in the circumferential direction, in which the holding element 8 can be arranged on the further pipe 3 with the socket end 4, and an arrangement which is closed in the circumferential direction, in which the holding element 8 on the further pipe 3 with the socket end 4 is set to be transferable.
- the holding element 8 can preferably be connected via a joint, e.g. a film hinge, can be divided into two sub-elements that can be connected to each other, in particular locked together. This enables a subsequent fixation of a connection of the pipes 2, 3 by the corresponding pipe connection device 7 with Hal teelement 8 from sub-elements.
- the holding element connecting elements 9, 9 ' need not necessarily be connected in one piece to the holding element 8.
- the holding element connecting elements 9, 9 ' can also be connected only to the holding element 8.
- An example of this would be the retaining element connecting elements 9, 9 ' , which are fastened to their position along the circumference of the annular retaining element 8 via a latching connection or a plug connection.
- the pipe connection device 7 is preferably produced by means of injection molding. Suitable materials for the pipe connection device 7 are mainly plastics, in particular polyacetal, for example polyoxymethylene (POM) or polyamide. Corresponding materials can also be modified with fillers / reinforcing materials.
- the Rohrharmsvor direction 7 is preferably formed from glass fiber reinforced plastic, preferably polyamide-66 with a glass fiber content of 60% (PA66-GF60).
- the pipe connection device 7 can also be made of suitable metallic materials, such as steel, spring steel, stainless steel, aluminum, aluminum die-casting alloys, zinc die-casting alloys or aluminum-zinc die-casting alloys.
- the wall thickness of the holding element 7 is, for example, 2 mm to 5 mm, preferably 3.5 mm.
- the assembly of the pipe connection arrangement 1 is described with reference to the figures as follows: On the socket end 4 of the further pipe 3, the Rohrtagensvorrich device 7 is pushed on from the tip end of the further pipe 3. Then the tubes 2, 3 are plugged together with an interposed sealing ring 4. The opposing retaining element connecting elements 9, 9 ' are guided through the tube connecting elements 21, 21 ' designed as tabs until the locking projections 10, 10 'of the retaining element connecting elements 9, 9 ' engage behind the tabs. The ring-shaped holding element 8 is then arranged on the side of the bead 5 facing away from the joint 6.
- the tip end of the pipe 2 is spaced from a sleeve base of the sleeve end 4 of the further pipe 3 that a thermal expansion of the pipes 2, 3 occurring when the pipe connection arrangement according to the invention is used as intended can be compensated for without causing deformation or breaks of pipes 2, 3 even occur.
- An unintentional exit of the tip end of the pipe 2 from the sleeve end 4 of the further pipe 3 is prevented by this fixation in the direction of the longitudinal axis of the pipe connection arrangement 1 without damaging the pipe walls.
- the pipe connection device 7 requires only little space, so that the pipe connection arrangement 1 according to the invention can be assembled easily and with only a small space requirement.
- the pipe connection arrangement 1 according to the invention in the embodiment according to FIG. 2 differs from the embodiment shown in FIG. 1 in particular in that the sleeve end 4 of the further pipe 3 is smooth, i.e. it has no bead for inserting a sealing ring.
- the seal between the tubes 2, 3 is carried out by a sealing ring which is injected or inserted into a circumferential area on the inside of the tube res 2 with a reduced wall thickness.
- the holding element 8 of the pipe connection device 7 is arranged on the side facing away from the joint 6 of the sleeve jump 12.
- the socket jump 12 is the area of the further pipe 3 in which its outer radius increases towards the socket end 4.
- This sleeve jump 12 can be there with a gradual transition from the normal pipe diameter of the further pipe 3 to the diameter of the sleeve end 4 or the expansion of the further pipe 3 can also take place abruptly, i.e. the diameter increases abruptly from the normal pipe diameter of the further pipe 3 to the diameter of the sleeve end 4.
- the holding element connecting elements 9, 9 ' are also shown in FIG. 2 straight out over the joint 6 of the pipes 2, 3, because at the socket end 4 of the further pipe 3 no bead has to be overcome.
- the pipe connection arrangement 1 according to the invention differs from the embodiment shown in FIG. 1 in addition to the differences according to the embodiment according to FIG. 2 in particular in that the holding element connecting elements 9, 9 ' with the pipe connecting elements 21, 21 ' cooperating areas 13, 13 ' with reduced wall thickness.
- the positive connection between the holding element connecting elements 9, 9 ' and the pipe connecting elements 21, 21 ' which are in turn formed as brackets, is brought about by the fact that between the outwardly pressing holding element connecting elements 9, 9 ' and the pipe connecting elements 21, 21 ' in the areas 13, 13 ' a locking connection is generated.
- the embodiment of the pipe connection arrangement 1 according to the invention according to FIG. 4 differs from the embodiment shown in FIG. 1 in addition to the differences according to the embodiment according to FIG. 2 further in particular in that the locking projections 10, 10 'of the holding element connecting elements 9, 9 ' are vertical to the longitudinal axis of the Pipes 2, 3 are directed outwards and protrude through corresponding recesses in the pipe connecting elements 21, 21 ' , which in turn produces snap connections, thereby ensuring that the pipes 2, 3 are fixed in their longitudinal direction.
- the tube connection arrangement 1 according to the invention in the embodiment according to FIG. 5 differs from the embodiment shown in FIG. 1 in particular in that the tube connection elements 21, 21 'are designed as radially outwardly directed locking projections. These formed as locking projections pipe connecting elements 21, 21 ' protrude to form a respective locking connection by corresponding recesses in the holding element connecting elements 9, 9 ' . As a result, the positions of the tubes 2, 3 are fixed in their longitudinal direction.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202018107107.6U DE202018107107U1 (de) | 2018-12-12 | 2018-12-12 | Rohrverbindungsanordnung |
PCT/EP2019/084357 WO2020120443A1 (fr) | 2018-12-12 | 2019-12-10 | Dispositif de raccordement de tubes |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3894732A1 true EP3894732A1 (fr) | 2021-10-20 |
Family
ID=69061261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19828980.3A Withdrawn EP3894732A1 (fr) | 2018-12-12 | 2019-12-10 | Dispositif de raccordement de tubes |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3894732A1 (fr) |
DE (1) | DE202018107107U1 (fr) |
WO (1) | WO2020120443A1 (fr) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2012385A (en) * | 1977-12-05 | 1979-07-25 | Reed International Ltd | Constraining Devices for Spigot and Socket Couplings |
AU2004289698B2 (en) * | 2003-11-07 | 2011-01-06 | Norma U.S. Holding Llc | Pipe clamp with integral latch |
DE202005019635U1 (de) | 2005-12-15 | 2006-02-23 | Poloplast Gmbh & Co.Kg | Rohrverbindungsvorrichtung |
DE102006020375A1 (de) | 2006-04-28 | 2007-11-15 | Rehau Ag + Co | Kunststoffrohr und Rohrleitungssystem zum Durchleiten von Abwässern |
DE102009007821A1 (de) * | 2009-02-07 | 2010-08-12 | Rehau Ag + Co | Rohrverbindungsvorrichtung |
DE102015213223A1 (de) * | 2015-07-15 | 2017-01-19 | Contitech Mgw Gmbh | Kupplungsarmatur für Rohrleitungen |
DE202016100302U1 (de) * | 2016-01-22 | 2016-10-12 | Centrotherm Systemtechnik Gmbh | Fluidleitungsverbindungssicherung |
-
2018
- 2018-12-12 DE DE202018107107.6U patent/DE202018107107U1/de active Active
-
2019
- 2019-12-10 WO PCT/EP2019/084357 patent/WO2020120443A1/fr unknown
- 2019-12-10 EP EP19828980.3A patent/EP3894732A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2020120443A1 (fr) | 2020-06-18 |
DE202018107107U1 (de) | 2020-03-13 |
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