• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In the case of a pipe connection piece (1) for connecting two pipes with approximately the same nominal diameter, with an inner pipe (2), which determines the inside diameter of the pipe connection piece (1), has a first end face (6), and a second end face (7) and with an outer tube (3), which is arranged outside the inner tube (2), extends over part of the axial length of the inner tube (2), and extends at a distance from the inner tube (2), has an outer end (8) which is close the plane of the first end face (6) of the inner tube (2), and has a middle end (9) which is further away from the plane of this first end face (6), and with an end ring (4) which extends from the middle end ( 9) of the outer tube (3) to the inner tube (2), the invention proposes that the inner tube (2) extends beyond the outer end (8) of the outer tube (3) such that the middle end (9) and the outer end (8) of the outer tube (3) between the two S end faces (6, 7) of the inner tube (2). Furthermore, the invention proposes a pipe connection of two pipes using a pipe connection piece (1) according to the invention.
    公开号:CH715602A2
    申请号:CH01489/19
    申请日:2019-11-25
    公开日:2020-05-29
    发明作者:Funke Norbert；Funke Hans-Günter
    申请人:Funke Kunststoffe Gmbh；
    IPC主号:
    专利说明:

    The innovation relates to a pipe transition piece according to the preamble of claim 1.
    [0002] Generic pipe transition pieces are known from DE 20 2010 008 131 U1 and DE 20 2011 000 987 U1. They have proven themselves extremely well in practice to connect pipes with considerably different wall thicknesses and approximately the same inside diameter.
    The innovation is based on the object of improving a generic pipe transition piece in such a way that it is suitable for connection to pipes with end edges of different geometry, and to specify a pipe connection in which not only the wall thicknesses of the pipes, but also their end edge geometry are different can be, and which are reliably close together.
    This object is achieved by a pipe transition piece according to claim 1 and by a pipe connection according to claim 12. Advantageous refinements of the innovation are described in the subclaims.
    Over a part of the length of the inner tube extends the outer tube, which ends between the two ends of the inner tube and is held there by a closing ring concentrically to the inner tube. This end ring extends from the inner tube to the outer tube. The innovation proposes not only to let the inner tube protrude from the middle end of the outer tube in a manner known per se, but also to let it protrude from the opposite outer end of the outer tube, i.e. to form a protrusion with which the inner tube emerges from the outer end of the outer tube protrudes. This results in surprisingly diverse possibilities to connect the same pipe transition piece either to one or the other end of a folding tube, or to a smoothly cut end of a tube, as occurs in practice, for example, if a folding tube has been shortened to adjust its length. Proposed pipe fittings can be tightly connected to these three different geometries using pipe collars, even if there are gaps between the outer pipe and the neighboring pipe.
    In a manner known per se, the pipe connection piece can be double-walled over part of its length, so that it does not have to be manufactured as a special shaped piece, but instead can be created, for example, from pipe elements of a commercial delivery program. The resulting space between the inner and outer pipe can advantageously be filled with a support material in order to increase the stability of the pipe connection piece. The pipe sleeve mentioned can accordingly be tightened firmly in order to ensure a reliably tight fit on the outer pipe. In addition, the position of the outer tube is fixed to the inner tube by the support material and relative movements of these two tubes to one another are avoided. An inexpensive and light support material can preferably be used. For example, a flowable filler can be filled into the intermediate space, or a plurality of spacer pins can be inserted into the intermediate space parallel to the axis, or a spacer ring can be inserted into the intermediate space, which rotates circumferentially around the inner tube.
    The support material mentioned can be designed in the form of a plurality of axially parallel support ribs, which are arranged circumferentially distributed around the inner tube, and these support ribs can advantageously be molded onto the outer tube, so that they do not have to be handled as separate elements. In particular, the support ribs can be dimensioned such that they run from the inner tube to the outer tube and the inner tube is thus supported without play in the outer tube or the outer tube is supported without play on the inner tube.
    As an alternative to using the supports, it can be provided to use support material in the form of a casting compound which fills the space between the inner tube and the outer tube. The casting compound can be designed, for example, as a hardening or setting material, e.g. as a resin, or as a foam which is poured into the intermediate space, possibly expanded there, and in any case hardens or sets after filling in the intermediate space.
    The pipe connector can advantageously be made of plastic, so that system components from the delivery program of plastic pipes can be used for the connection of a mineral pipe to a plastic pipe and a problem-free, tight and system-identical connection of the plastic pipe to the proposed pipe connector is possible is. The gluing of the end ring to the inner tube enables a liquid-tight connection of these two components to each other. Within the scope of the present proposal, such an adhesion can also be carried out in the sense of an ultrasonic welding or a cold welding.
    The second front end of the inner tube can advantageously be designed as a socket end or as a spigot end of a pipe section, so that further pipes can be directly connected to the pipe connector with the same system without any problem and without additional adapters. In particular, the inner pipe of the proposed pipe connector can be formed from a section of a plastic pipe, the same type of plastic pipe forming the plastic pipe to be connected to the pipe connector.
    [0011] The outer tube and the end ring can advantageously be formed by a common component. This is advantageous in favor of the stability and also the tightness of the pipe connection piece. In addition, a particularly inexpensive manufacture of the pipe end piece can be supported by using a commercially available pipe cap. The cover is provided with a central hole that receives the inner tube. This pierced end cap thus forms as a single component the outer tube and the end ring of the proposed pipe connection piece, so that the pipe connection piece, which is a special component, can be produced in a particularly economical manner using commercially available standard components, namely a piece of pipeline and the pipe cap mentioned. Through the choice of the corresponding outer diameter of the pipe cap, this pipe connection piece can be approximated to the outer diameter of a mineral pipe, for example, so that only a comparatively small difference in diameter has to be bridged, which can be achieved by the already mentioned commercially available pipe sleeves.
    The outer tube can also be created by a known, commercially available reducer instead of the tube cap mentioned above, so that in this case, a mass-produced component with the corresponding economic advantages is used to manufacture the pipe connector. Because of its shape, the outer reducer is referred to as the outer bell of the pipe connection piece and has at least two different diameters, the diameter differences typically running in steps. If a particularly large difference between the outer diameters of the two pipes has to be bridged, two or more reducers can connect to one another and together form the outer pipe of the pipe connector.
    An exemplary embodiment of a pipe connector is explained in more detail below with the aid of the purely schematic representations. It shows<tb> Fig. 1 <SEP> the connection of a pipe connection piece to a first end of a folded pipe,<tb> Fig. 2 <SEP> the connection of the same pipe fitting to a second end of the same folding pipe, and<tb> Fig. 3 <SEP> the connection of the same pipe connection piece to a smooth, cut end edge of the same folded pipe.
    In Fig. 1, a pipe connector 1 is shown made of plastic, which has an inner tube 2. An outer tube 3 runs concentrically around part of the length of the inner tube 2 and is fixed to the inner tube 2 via a closing ring 4. The outer tube 3 and the end ring 4 can be formed by a common component in the form of a tube cap, so that for this reason no connecting materials or connecting elements are shown which serve to connect these two components. The end ring 4 is glued to the inner tube 2 by means of an adhesive seam 5, wherein an adhesive can be used for the gluing, but the gluing can also be carried out in the form of a thermal or ultrasonic welding.
    The inner tube 2 has a first end face 6 and a second end face 7. For connection to a plastic pipe of the same system, the second end face 7 is designed as a spigot, as it also has the same plastic pipe, so that this plastic pipe with its sleeve end directly the second end 7 of the inner tube 2 can be connected.
    The outer tube 3 has an outer end 8 which is closer to the first end 6 of the inner tube 2 than a middle end 9 of the outer tube 3. The outer tube 3 connects to the end ring 4 with the middle end 9. The inner end 2 of the inner tube 2 protrudes from the outer tube 3 and thus forms a protrusion 10.
    The pipe connector 1 is used to connect the plastic tube mentioned to a folding tube 11, which consists of a mineral material. 1 shows the connection of the pipe connection piece 1 to a first end of this folding tube 11, on which the folding tube 11 has an inner fold, so that this end of the folding tube 11 can also be referred to as the socket end 12 of the folding tube 11. With its protrusion 10, the inner tube 2 extends into the fold of the fold tube 11 and bears against the fold tube 11 with its first end face 6. The inner tube 2 and the folding tube 11 have the same inner diameter and are aligned with the same axis, so that the inner tube 2 connects to the folding tube 11 with the same sole.
    In the illustrated embodiment, the pipe connector 1 is exactly adapted to the type of folding tube 11 shown. The length of the protrusion 10 is therefore dimensioned such that not only the first end 6 of the inner tube 2 but also the outer end 8 of the outer tube 3 connects to the folding tube 11. To produce the pipe connection, the arrangement shown of pipe connection piece 1 and folded pipe 11 is tightly connected by means of a pipe sleeve. Suitable pipe collars are commercially available and are marketed by the applicant, for example under the designation “VPC pipe coupling” or “FHS pipe coupling”.
    Fig. 2 shows the pipe connector 1 of Fig. 1, but partially broken away, and the same folding tube 11 as in Fig. 1, but the pipe connector 1 connects to its opposite second end, which has an outer fold and as the tip end 14 of the Folded tube 11 can be called. In this case too, the inner tube 2 rests with its first end 6 against the folding tube 11 and connects to it at the same level. However, a space remains between the outer end 8 of the outer tube 3 and the folding tube 11, which is determined on the one hand by the length of the overhang 10 and on the other hand by the outer fold. However, by using the pipe sleeve, this space can be bridged without problems and a tight connection of the pipe connection piece 1 to the folded pipe 11, also at its tip end 14, can be ensured.
    Fig. 3 shows the same pipe connector 1 and the same folding tube 11. In contrast to the figures of Figs. 1 and 2, the folding tube 11 has been modified: as is often the case in practice, the folding tube 11 is shortened for length adjustment and now has an originally non-existent end without fold, which can accordingly be referred to as a smooth end 15 of the fold tube 11. In this case too, the inner tube 2 rests with its first end 6 against the folding tube 11 and connects to it at the same level. An intermediate space remains between the outer end 8 of the outer tube 3 and the folded tube 11, which in this case is determined only by the length of the protrusion 10 and can be bridged tightly by using the tubular sleeve.
    Deviating from the illustrated embodiment, in the space that results between the inner tube 2 and the outer tube 3, support material in the form of a space filling this space or in the form of individual ribs or other spacers can be arranged.
    Reference number:
    1 pipe connector 2 inner tube 3 outer tube 4 end ring 5 adhesive seam 6 first front end 7 second front end 8 outer end 9 middle end 10 protrusion 11 folded tube 12 socket end 14 spigot end 15 smooth end
    权利要求:
    Claims (13)
    [1]
    1. Pipe connection piece (1) for connecting two pipes with approximately the same nominal diameter,• with an inner tube (2),o which determines the inside diameter of the pipe connection piece (1),o has a first end face (6),o and a second end (7)• and with an outer tube (3),o which is arranged outside the inner tube (2),o extends over part of the axial length of the inner tube (2),o and extends at a distance from the inner tube (2),o has an outer end (8) which is close to the plane of the first end face (6) of the inner tube (2),o as well as a middle end (9) which is further away from the plane of this first front end (6),• and with an end ring (4),o which extends from the middle end (9) of the outer tube (3) to the inner tube (2),characterized,that the inner tube (2) extends beyond the outer end (8) of the outer tube (3),such that the middle end (9) and the outer end (8) of the outer tube (3) lie between the two end faces (6, 7) of the inner tube (2).
    [2]
    2. Pipe connector according to claim 1, characterized in that a support material is arranged in the space between the inner tube (2) and the outer tube (3).
    [3]
    3. Pipe connector according to claim 2, characterized in that the support material is designed as a plurality of axially extending support ribs distributed circumferentially around the inner pipe (2).
    [4]
    4. Pipe connector according to claim 3, characterized in that a support rib extends from the inner tube (2) to the outer tube (3) and the inner tube (2) is supported without play in the outer tube (3).
    [5]
    5. Pipe connector according to claim 7 or 8, characterized in that a support rib is integrally formed on the outer tube (3).
    [6]
    6. Pipe connector according to claim 2, characterized in that the support material is designed as a casting compound which fills the space between the inner tube (2) and the outer tube (3).
    [7]
    7. Pipe connector according to one of the preceding claims, characterized in that it consists of plastic and the end ring (4) is glued to the inner tube (2).
    [8]
    8. Pipe connector according to one of the preceding claims, characterized in that the second end face (7) of the inner tube (2) is designed as a sleeve end or as a tip end of a pipe section.
    [9]
    9. Pipe connector according to one of the preceding claims, characterized in that the outer tube (3) and the end ring (4) are designed as a common component.
    [10]
    10. Pipe connector according to claim 9,characterized,that the outer tube (3) and the end ring (4) form sections of a so-called outer bell,which connects to the inner tube (2) in the area of the end ring (4) and forms a sleeve that runs coaxially with the inner tube (2).
    [11]
    11. Pipe connector according to claim 10, characterized in that the outer bell has a multi-stage outer contour and is formed from at least one reducer forming a step.
    [12]
    12. Pipe connection of two pipes with approximately the same nominal diameter,using a pipe connection piece (1) which is designed according to one of the preceding claims,and two different outer diameters at the two ends of the pipe connection piece (1),wherein a first pipeline designed as a folded tube (11) with a first wall thickness connects to the first end face (6) of the inner tube (2),wherein the inside diameter of this folded tube (11) is substantially the same as the inside diameter of the tube connection piece (1),and a pipe sleeve overlaps the larger outside diameter of the pipe connection piece (1) and an adjacent section of the folded pipe (11), and a second pipe with a second wall thickness, which is smaller than, adjoins the second end face (7) of the inner pipe (2) the first wall thickness of the folding tube (11).
    [13]
    13. Pipe connection according to claim 12, characterized in that between the outer end (8) of the outer tube (3) and the folded tube (11), a free distance remains, which is bridged sealingly by the pipe sleeve.
    类似技术:
    公开号 | 公开日 | 专利标题
    CH253553A|1948-03-15|Pipe coupling.
    DE2625460A1|1977-01-20|COLLAR, IN PARTICULAR FOR A HOSE OR PIPE COUPLING
    DE1910365A1|1969-11-13|Process for making pipe connections
    DE102015016454B4|2018-02-08|Elastic bearing
    DE3843659A1|1989-07-20|CONNECTING DEVICE FOR INJECTION NOZZLES
    EP2489918B1|2016-04-13|Modular fitting
    EP2410224A1|2012-01-25|Tube connection piece and tube connection
    DE102019131810A1|2020-05-28|Pipe transition piece with protrusion, and pipe connection made with it
    DE20317596U1|2004-02-12|Decoupling element for exhaust systems
    DE2517050C2|1986-10-30|Pipe connection
    DE3315819A1|1984-10-31|Pipeline for conveying, in particular, corrosive media, and a method for assembling and laying the pipeline
    DE1950141A1|1971-04-15|Branch piece made of plastic, in particular thermoplastic plastic
    DE2327159C3|1978-05-11|Single and double socket for connecting pipe ends and fittings in fiber-reinforced plastic pipes manufactured using the winding process
    DE1806616A1|1970-05-21|Pipe coupling
    DE4121922C2|1994-06-16|Reducing fitting
    DE1040858B|1958-10-09|Connection between two pipe elements made of plastic that is still elastically deformable
    DE102018209269B3|2019-09-19|Method for producing a vehicle device with a connection and such a vehicle device
    DE60114745T2|2006-08-10|Pipe pieces connected with an adapter and connection method
    DE2035908C2|1983-09-08|Thin-walled bearing eye mounting system - involves butt-welding to construction component after parting from machined tube
    DE7920698U1|1979-10-18|SLEEVE FOR CONNECTION BETWEEN A DISTRIBUTION PIPE AND A CONNECTING PIPE
    CH660067A5|1987-03-13|SOCKET CONNECTION AND METHOD FOR ASSEMBLING THE SAME.
    DE1902520A1|1970-08-06|Fittings for pipe connections
    DE4429766A1|1995-03-09|Connection for high pressure pipes
    DE2455065C2|1986-07-17|Pipe equalizer with a pipe coupling for the tight connection of individual pipes forming a pipe
    EP0339388A1|1989-11-02|Connection between a flexible conduit element and a pipe
    同族专利:
    公开号 | 公开日
    AT521896A3|2020-08-15|
    DE102019131810A1|2020-05-28|
    AT521896A2|2020-06-15|
    DE202018106733U1|2018-12-21|
    AT17152U1|2021-07-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2804197B1|2000-01-24|2002-07-12|Coflexip|LIMITING DEVICE FOR THE PROPAGATION OF A DEFORMATION IN A DOUBLE WALL PIPE FOR LARGE DEPTHS|
    GB0125148D0|2001-10-19|2001-12-12|Coflexip|Bulkhead assembly for use in pipe-in-pipe systems|
    FR2879715B1|2004-12-17|2007-04-06|Saipem S A Sa|SUB-MARINE COAXIAL CONDUIT ELEMENT ALLEGE AND REINFORCED|
    FR2948165A1|2009-07-17|2011-01-21|Saipem Sa|COAXIAL PIPE ASSEMBLY COMPRISING INTERNAL CAVITY JUNCTION PARTS AND METHOD OF MAKING SAME|
    DE202010008131U1|2010-07-21|2010-10-07|Funke Kunststoffe Gmbh|Reducer for pipe connection sleeve|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE202018106733.8U|DE202018106733U1|2018-11-27|2018-11-27|Pipe transition piece with overhang, and thus produced pipe connection|
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