EP3130709B2 - Shaft base body made of plastic for an inspection or revision shaft - Google Patents

Shaft base body made of plastic for an inspection or revision shaft Download PDF

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Publication number
EP3130709B2
EP3130709B2 EP16171205.4A EP16171205A EP3130709B2 EP 3130709 B2 EP3130709 B2 EP 3130709B2 EP 16171205 A EP16171205 A EP 16171205A EP 3130709 B2 EP3130709 B2 EP 3130709B2
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EP
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Prior art keywords
base body
shaft
foot
axis
central part
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EP16171205.4A
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German (de)
French (fr)
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EP3130709B1 (en
EP3130709A1 (en
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Ralph-Peter Dr.-Ing. Hegler
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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
    • E03F5/024—Manhole shafts or other inspection chambers; Snow-filling openings; accessories made of plastic material

Definitions

  • the invention relates to a manhole body made of plastic according to the identical preamble of claims 1 and 2.
  • connection sleeves have a seal which projects radially inwards and is held in place by means of a snap ring. Pipes to be pushed in, on the outside of which these sealing rings come to rest, are pushed against a stop projection of the middle part of the base body.
  • the one-piece formation of feet for the media-carrying inside of the base body middle part is not critical, since injection molding processes permit a different distribution of material.
  • the inside of the shaft body and in particular the middle part of the body remains hydraulically smooth, i.e. free of flow resistances that can also lead to deposits of solids carried along in the flowing medium.
  • a manhole base body produced by the rotational molding process which has a cylindrical base body middle part with a flat bottom.
  • connection sleeves each consisting of two sections with different inner diameters, flow into the middle part of the base body, so that media lines with different diameters can be connected.
  • the sleeve sections have outwardly projecting reinforcing ribs.
  • the invention is based on the object of designing a manhole base body of the generic type in such a way that feet can be produced using the rotational molding process that do not lead to an impairment of the hydraulic properties of the manhole base body.
  • this object is achieved by the features in the respective characterizing part of claims 1 or 2 .
  • the media lines are arranged in the connection sleeves, i. H. the connection sleeves themselves are not used for direct media transport, i. H. Media - usually waste water - do not flow directly over the inner wall of the respective connection sleeve.
  • the position of the base or feet is such that there is no collision between the seals in their end position and the base bulges. It is also advantageous if the bulges caused by the respective base are each formed on the inside of the sleeve with an insertion bevel in such a way that the respective seal is not damaged when a line or an adapter piece is pushed in to change the diameter .
  • connection sleeves 2, 3, 4 are each provided with an insertion funnel 6, 7, 8 that widens outward.
  • the body located between the sockets 3, 4 middle part 9 is - as from 2 is recognizable - at least in its lower area part-cylindrical, namely part-cylindrical to the axis 5.
  • a base 12 or 13 is formed in the form of a bulging outward from the respective main section 10 or 11 web.
  • the lower outer edge 14 or 15 of the respective base 12, 13 runs perpendicular to the axis 5 and perpendicular to the central axis 16 of the first connection sleeve 2.
  • first connection sleeve 2 serving as a shaft extension 17 composite tube, also made of plastic, which consists of a substantially cylindrical inner tube 18 and a corrugated outer tube 19 whose crests 20 are welded to the inner tube 18 at their respective feet. Construction and production of such composite pipes made of plastic are, for example, from EP 0 563 575 A2 known.
  • a seal 22 resting against the essentially cylindrical inner wall 21 of the first connecting sleeve 2 is arranged between the end-side wave crest 20 and the immediately adjacent wave crest 20 .
  • Such seals 22 are, for example, from EP 2 230 359 A2 known.
  • a seal 25 is arranged between the two end-side crests 24 of the waves, which seal can be designed like the seal 22 .
  • the end of the line 23 rests against a transition section 26 between the second connecting sleeve 3 and the middle part 9 of the base body.
  • the inner tube 27 of the line 23 is flush with the inner wall 28 of the base body middle part 9.
  • the seal 25 is sealingly on the part of the cylindrical main portion 10 of the second connection sleeve 3, the between the transition section 26 and the base 12 is formed.
  • the base 12 is provided with an insertion bevel 29 on its side facing the transition section 26, so that the seal 25 can Inserting the line 23 into the second connection sleeve 3 is not damaged.
  • This insertion slope 29 is formed from the outside, but formed inside.
  • An adapter piece 30 can be inserted into the third connection socket 4, which is required to enable the connection of a second media line 31 with a different diameter than the third connection socket 4.
  • the adapter piece 30 consists of a spigot end 32 which is formed in one piece with a sleeve 33 .
  • the second line 31 is pushed into the socket 33 of the adapter piece 30, a seal 34 being provided between the spigot end 32 of the second line 31 and the socket 33 of the adapter piece 30 in the usual way.
  • a sealing annular web 37 accommodating a seal 36, the seal 36 bearing against the cylindrical inner wall 38 of the third connection sleeve 4, namely between the base 13 and the Transition section 40 between the main body middle part 9 and the cylindrical main section 11.
  • the spigot end 32 also has two rib-shaped annular ridges 41, 42 which support the adapter piece 30 radially against the third connecting sleeve 4. You take the base 13 between them, like that Figures 3 and 4 is removable.
  • a shaft base body 1 ' is shown, which differs from the shaft base body 1 previously described only by the design of the feet 43, 44. These are formed on the outer edge of the respective insertion funnel 7' or 8' of the second and third connection sleeve 3' or 4', as in particular 6 is removable.
  • the feet 43 and 44 have a lower outer edge 45, 46, which runs perpendicular to the axis 5 and perpendicular to the central axis 16, respectively. Otherwise, the description of the Figures 1 to 4 .
  • the shaft body 1 and 1 ' are in the so-called Manufactured rotational molding, which is also referred to as centrifugal casting, in which only the outer shape of the respective workpiece, ie the shaft base body 1 or 1 'forming mold wall is present.
  • the liquid plastic is deposited on this mold wall with essentially the same wall thickness.
  • the feet 12, 13 or 43, 44 can be formed without the main body middle part 9 losing its hydraulically smooth inner shape.

Description

Die Erfindung betrifft einen Schacht-Grundkörper aus Kunststoff nach dem jeweils identischen Oberbegriff der Ansprüche 1 und 2.The invention relates to a manhole body made of plastic according to the identical preamble of claims 1 and 2.

Derartige aus der GB 2 120 698 A bekannte Schacht-Grundkörper, die in eingebautem Zustand wie ein auf dem Kopf stehendes "T" erscheinen, weisen ein Grundkörper-Mittelteil mit einem oder mehreren Standfüßen auf. Die Standfüße sind an den glattwandigen Teilen der Anschluss-Muffen ausgebildet und weisen die Form eines an der Spitze abgeschnittenen V auf, so dass dieser geradlinige untere Außenrand auf dem Boden oder dergleichen zu stehen kommt. Hierdurch wird erreicht, dass bei der Verlegung, d. h. beim Anschluss der Medien-Leitungen - in der Regel Abwasser-Leitungen - und beim Einsetzen einer Schacht-Verlängerung, der Schacht-Grundkörper nicht gehalten werden muss, sondern bereits in seiner endgültigen Stellung während der Montage stabilisiert ist. Die Anschluss-Muffen weisen an ihrem jeweiligen äußeren freien Ende eine radial nach innen vorspringende Dichtung auf, die mittels eines Schnapp-Rings gehalten wird. Einzuschiebende Rohre, an deren Außenseite diese Dichtringe zur Anlage kommen, werden gegen einen Anschlag-Vorsprung des Grundkörper-Mittelteils geschoben.Such from the GB 2 120 698 A Known manhole bases, which appear as an upside-down "T" when installed, have a base body middle part with one or more feet. The feet are formed on the smooth-walled parts of the connection sleeves and have the shape of a V cut off at the tip, so that this straight lower outer edge comes to stand on the ground or the like. This ensures that when laying, ie when connecting the media lines - usually waste water lines - and when inserting a shaft extension, the shaft body does not have to be held, but already in its final position during assembly is stabilized. At their respective outer free end, the connection sleeves have a seal which projects radially inwards and is held in place by means of a snap ring. Pipes to be pushed in, on the outside of which these sealing rings come to rest, are pushed against a stop projection of the middle part of the base body.

Bei durch Spritzgießen hergestellten Schacht-Grundkörpern ist die einstückige Ausbildung von Standfüßen für die Medien führende Innenseite des Grundkörper-Mittelteils unkritisch, da Spritzgießverfahren eine unterschiedliche Materialverteilung zulassen. Durch entsprechende Gestaltung des Kerns einer Spritzgießform bleibt die Innenseite des Schacht-Grundkörpers und insbesondere des Grundkörper-Mittelteils dabei hydraulisch glatt, also frei von Strömungswiderständen, die auch zur Ablagerung von im fließenden Medium mitgeführten Feststoffen führen können.In the case of shaft base bodies produced by injection molding, the one-piece formation of feet for the media-carrying inside of the base body middle part is not critical, since injection molding processes permit a different distribution of material. By appropriately designing the core of an injection mold, the inside of the shaft body and in particular the middle part of the body remains hydraulically smooth, i.e. free of flow resistances that can also lead to deposits of solids carried along in the flowing medium.

Bei nach dem Rotationsgießverfahren, also im sogenannten Schleuderguss, hergestellten Schacht-Grundkörpern ist eine Ausbildung von Standfüßen ohne Beeinträchtigung der Innenseite des Schacht-Grundkörpers nicht möglich, da jede Form eines Standfußes am Grundkörper-Mittelteil zu mehr oder weniger prägnanten Ausbuchtungen bzw. Wellungen führt, die hydraulisch unerwünscht sind. Aus diesem Grunde werden diese Standfüße bei im Rotationsgießverfahren hergestellten Schacht-Grundkörpern nachträglich angebracht. Dies erfordert jedoch zusätzliches Material und zusätzliche Arbeitsschritte.In the case of shaft base bodies manufactured using the rotational molding process, i.e. centrifugal casting, it is not possible to form bases without damaging the inside of the shaft base body, since every shape of a base on the middle part of the base body leads to more or less pronounced bulges or corrugations. which are hydraulically undesirable. For this reason, these feet are subsequently attached to shaft bases manufactured using the rotational molding process. However, this requires additional material and additional work steps.

Aus der GB 2 216 916 A ist ein im Rotationsgießverfahren hergestellter Schacht-Grundkörper bekannt, der ein zylindrisches Grundkörper-Mittelteil mit einem ebenen Boden aufweist. In das Grundkörper-Mittelteil münden mehrere Anschlussmuffen ein, die jeweils aus zwei Abschnitten unterschiedlichen Innendurchmessers bestehen, so dass Medien-Leitungen mit unterschiedlichen Durchmessern angeschlossen werden können. Die Muffen-Abschnitte weisen nach außen vorspringende Verstärkungsrippen auf.From the GB 2 216 916 A a manhole base body produced by the rotational molding process is known, which has a cylindrical base body middle part with a flat bottom. Several connection sleeves, each consisting of two sections with different inner diameters, flow into the middle part of the base body, so that media lines with different diameters can be connected. The sleeve sections have outwardly projecting reinforcing ribs.

Aus der DE 44 18 370 A1 ist ein Beton-Schachtunterteil mit einer nicht selbsttragenden Kunststoffauskleidung bekannt. Diese aus dünnem Kunststoff bestehende Auskleidung wird in Beton eingebettet. Die WO 2015/011294 A1 offenbart einen Schacht-Grundkörper mit einer Stapelhilfe.From the DE 44 18 370 A1 a concrete manhole base with a non-self-supporting plastic lining is known. This lining, made of thin plastic, is embedded in concrete. the WO 2015/011294 A1 discloses a chute body with a stacking aid.

Der Erfindung liegt die Aufgabe zugrunde, einen Schacht-Grundkörper der gattungsgemäßen Art so auszubilden, dass Standfüße im RotationsGießverfahren hergestellt werden können, die nicht zu einer Beeinträchtigung der hydraulischen Eigenschaften des Schacht-Grundkörpers führen.The invention is based on the object of designing a manhole base body of the generic type in such a way that feet can be produced using the rotational molding process that do not lead to an impairment of the hydraulic properties of the manhole base body.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale im jeweiligen Kennzeichnungsteil der Ansprüche 1 oder 2 gelöst. Dadurch, dass die Standfüße nicht mehr am Grundkörper-Mittelteil, sondern in bzw. an den Anschlüssen, also Anschluss-Muffen, ausgebildet sind, spielt es keine Rolle, dass die Standfüße zu einer Verformung der Innenseite des Schacht-Grundkörpers führen. In den Anschluss-Muffen werden die Medien-Leitungen angeordnet, d. h. die Anschluss-Muffen selber dienen nicht zum unmittelbaren Medien-Transport, d. h. Medien - in der Regel Abwässer - fließen nicht unmittelbar über die Innenwand der jeweiligen Anschluss-Muffe. Durch das Einschieben von Medien-Leitungen oder von als Reduzier-Stücke dienenden Adapter-Stücken werden die herstellungsbedingten Ausbuchtungen bzw. Wellungen für die Standfüße im Muffenbereich abgedeckt, so dass keinerlei hydraulische Nachteile beim Einsatz des Schacht-Grundkörpers auftreten. Von Bedeutung ist, dass die Lage des oder der Standfüße so ist, dass keine Kollision zwischen Dichtungen in ihrer Endlage und den Standfuß-Ausbuchtungen auftritt. Weiterhin ist es von Vorteil, wenn die durch den jeweiligen Standfuß bedingten Ausbuchtungen jeweils an der Innenseite der Muffe mit einer Einführschräge in der Weise ausgebildet sind, dass beim Einschieben einer Leitung bzw. eines Adapter-Stücks zur Durchmesser-Veränderung keine Beschädigung der jeweiligen Dichtung auftritt.According to the invention, this object is achieved by the features in the respective characterizing part of claims 1 or 2 . Due to the fact that the feet are no longer formed on the middle part of the base body, but in or on the connections, ie connection sleeves, it is irrelevant that the feet lead to a deformation of the inside of the shaft base body. The media lines are arranged in the connection sleeves, i. H. the connection sleeves themselves are not used for direct media transport, i. H. Media - usually waste water - do not flow directly over the inner wall of the respective connection sleeve. By inserting media lines or adapter pieces serving as reducing pieces, the production-related bulges or corrugations for the feet in the socket area are covered, so that there are no hydraulic disadvantages when using the manhole base body. It is important that the position of the base or feet is such that there is no collision between the seals in their end position and the base bulges. It is also advantageous if the bulges caused by the respective base are each formed on the inside of the sleeve with an insertion bevel in such a way that the respective seal is not damaged when a line or an adapter piece is pushed in to change the diameter .

Weitere Merkmale, Vorteile und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen anhand der Zeichnung. Es zeigt:

Fig. 1
eine erste Ausführungsform eines Schacht-Grundkörpers in teilweise aufgebrochener Darstellung in einer Seiten-Längs-Darstellung entsprechend dem Sichtpfeil I in Fig. 2,
Fig. 2
eine Stirnansicht des Schacht-Grundkörpers entsprechend dem Sichtpfeil II in Fig. 1,
Fig. 3
den zu einem Inspektions- bzw. Revisions-Schacht vervollständigten Schacht-Grundkörper in einem vertikalen Längsschnitt,
Fig. 4
einen Teil-Ausschnitt IV aus Fig. 3 in gegenüber Fig. 3 vergrößertem Maßstab,
Fig. 5
eine zweite Ausgestaltung eines Schacht-Grundkörpers in einer Fig. 3 entsprechenden Darstellung,
Fig. 6
einen Teil-Querschnitt durch Fig. 5 entsprechend der Schnittlinie VI in Fig. 5 und
Fig. 7
einen der Darstellung in Fig. 4 entsprechenden Teil-Ausschnitt VII aus Fig. 5.
Further features, advantages and details of the invention result from the following description of exemplary embodiments with reference to the drawing. It shows:
1
a first embodiment of a shaft base in a partially broken representation in a side-longitudinal view according to the arrow I in 2 ,
2
a front view of the shaft base according to the sight arrow II in 1 ,
3
a vertical longitudinal section of the manhole base completed to form an inspection or revision manhole,
4
a partial excerpt IV 3 in opposite 3 enlarged scale,
figure 5
a second embodiment of a shaft body in a 3 corresponding representation,
6
a partial cross-section figure 5 according to section line VI in figure 5 and
7
one of the representation in 4 corresponding section VII figure 5 .

Der in den Fig. 1 und 2 dargestellte, aus Kunststoff bestehende Schacht-Grundkörper 1 für einen Revisions- bzw. Inspektions-Schacht hat in grober Annäherung die Form eines auf dem Kopf stehenden T. Nach oben erstreckt sich als Anschluss-Element eine erste Anschluss-Muffe 2. Am unteren Ende erstrecken sich gleichsam als Quersteg des T eine zweite Anschluss-Muffe 3 und eine dritte Anschluss-Muffe 4, die eine durchgehende gemeinsame Achse 5 aufweisen. An ihren freien Enden sind die Anschluss-Muffen 2, 3, 4 jeweils mit einem sich nach außen erweiternden Einführ-Trichter 6, 7, 8 versehen.The in the Figures 1 and 2 The illustrated manhole base body 1 made of plastic for a revision or inspection manhole has roughly the shape of an upside down T. A first connection sleeve 2 extends upwards as a connection element. Extend at the lower end a second connection sleeve 3 and a third connection sleeve 4, which have a continuous common axis 5, are arranged as a transverse web of the T, so to speak. At their free ends, the connection sleeves 2, 3, 4 are each provided with an insertion funnel 6, 7, 8 that widens outward.

Das zwischen den Anschluss-Muffen 3, 4 befindliche Grundkörper-Mittelteil 9 ist - wie aus Fig. 2 erkennbar ist - mindestens in seinem unteren Bereich teil-zylindrisch ausgebildet, und zwar teil-zylindrisch zur Achse 5.The body located between the sockets 3, 4 middle part 9 is - as from 2 is recognizable - at least in its lower area part-cylindrical, namely part-cylindrical to the axis 5.

In den zylindrischen Haupt-Abschnitten 10, 11 der Muffen 3, 4 ist jeweils ein Standfuß 12 bzw. 13 in Form eines nach außen aus dem jeweiligen Haupt-Abschnitt 10 bzw. 11 ausgewölbten Steges ausgebildet. Der untere Außenrand 14 bzw. 15 des jeweiligen Standfußes 12, 13 verläuft senkrecht zur Achse 5 und senkrecht zur Mittel-Achse 16 der ersten Anschluss-Muffe 2. Mittels dieser beiden Standfüße 12 bzw. 13 wird sichergestellt, dass der Schacht-Grundkörper 1 auf einem ebenen Untergrund während der Montagearbeiten stabil steht. Zweckmäßigerweise ragen die Einführ-Trichter 7, 8 nicht nach unten über den jeweiligen Außenrand 14 bzw. 15 vor.In the cylindrical main sections 10, 11 of the sleeves 3, 4, a base 12 or 13 is formed in the form of a bulging outward from the respective main section 10 or 11 web. The lower outer edge 14 or 15 of the respective base 12, 13 runs perpendicular to the axis 5 and perpendicular to the central axis 16 of the first connection sleeve 2. These two feet 12 or 13 ensure that the shaft base body 1 is stable on a level surface during assembly work. Appropriately, the insertion funnels 7, 8 do not protrude downward beyond the respective outer edge 14 or 15.

Wie Fig. 3 entnehmbar ist, wird zur Herstellung eines Inspektions- bzw. Revisions-Schachtes in die nach oben ragende erste Anschluss-Muffe 2 ein als Schacht-Verlängerung 17 dienendes Verbund-Rohr, ebenfalls aus Kunststoff, eingesetzt, das aus einem im Wesentlichen zylindrischen Innen-Rohr 18 und einem gewellten Außen-Rohr 19 gebildet ist, dessen Wellenberge 20 an ihrem jeweiligen Fuß mit dem Innen-Rohr 18 verschweißt sind. Aufbau und Herstellung derartiger Verbund-Rohre aus Kunststoff sind beispielsweise aus der EP 0 563 575 A2 bekannt. Zwischen dem endseitigen Wellenberg 20 und dem unmittelbar benachbarten Wellenberg 20 ist eine gegen die im Wesentlichen zylindrische Innen-Wand 21 der ersten Anschluss-Muffe 2 anliegende Dichtung 22 angeordnet. Derartige Dichtungen 22 sind beispielsweise aus der EP 2 230 359 A2 bekannt.As 3 can be removed, is used to produce an inspection or revision shaft in the upwardly projecting first connection sleeve 2 serving as a shaft extension 17 composite tube, also made of plastic, which consists of a substantially cylindrical inner tube 18 and a corrugated outer tube 19 whose crests 20 are welded to the inner tube 18 at their respective feet. Construction and production of such composite pipes made of plastic are, for example, from EP 0 563 575 A2 known. A seal 22 resting against the essentially cylindrical inner wall 21 of the first connecting sleeve 2 is arranged between the end-side wave crest 20 and the immediately adjacent wave crest 20 . Such seals 22 are, for example, from EP 2 230 359 A2 known.

In die zweite Anschluss-Muffe 3 wird eine Leitung 23 - üblicherweise eine Abwasser-Leitung - eingeführt, die ebenfalls als doppelwandiges gewelltes Verbund-Rohr ausgebildet ist. Zwischen den beiden endseitigen Wellenbergen 24 ist eine Dichtung 25 angeordnet, die wie die Dichtung 22 ausgebildet sein kann. Die Leitung 23 liegt mit ihrem Ende an einem Übergangs-Abschnitt 26 zwischen der zweiten Anschluss-Muffe 3 und dem Grundkörper-Mittelteil 9 an. Wie Fig. 3 ebenfalls entnehmbar ist, liegt das Innen-Rohr 27 der Leitung 23 bündig mit dem der Innen-Wand 28 des Grundkörper-Mittelteils 9. Die Dichtung 25 liegt dichtend an dem Teil des zylindrischen Haupt-Abschnitts 10 der zweiten Anschluss-Muffe 3 an, der zwischen dem Übergangs-Abschnitt 26 und dem Standfuß 12 ausgebildet ist. Damit die Dichtung 25 unbeschädigt über diesen im Inneren der Anschluss-Muffe 3 wie eine Nut ausgebildeten Standfuß 12 geschoben werden kann, ist der Standfuß 12 auf seiner dem Übergangs-Abschnitt 26 zugewandten Seite mit einer Einführ-Schräge 29 versehen, damit die Dichtung 25 beim Einschieben der Leitung 23 in die zweite Anschluss-Muffe 3 nicht beschädigt wird. Diese Einführ-Schräge 29 wird von außen geformt, aber innen ausgebildet.A line 23--usually a sewage line--is introduced into the second connecting sleeve 3, which is also designed as a double-walled, corrugated composite pipe. A seal 25 is arranged between the two end-side crests 24 of the waves, which seal can be designed like the seal 22 . The end of the line 23 rests against a transition section 26 between the second connecting sleeve 3 and the middle part 9 of the base body. As 3 is also removable, the inner tube 27 of the line 23 is flush with the inner wall 28 of the base body middle part 9. The seal 25 is sealingly on the part of the cylindrical main portion 10 of the second connection sleeve 3, the between the transition section 26 and the base 12 is formed. So that the seal 25 can be pushed undamaged over this base 12, which is designed like a groove inside the connection sleeve 3, the base 12 is provided with an insertion bevel 29 on its side facing the transition section 26, so that the seal 25 can Inserting the line 23 into the second connection sleeve 3 is not damaged. This insertion slope 29 is formed from the outside, but formed inside.

In die dritte Anschluss-Muffe 4 kann ein Adapter-Stück 30 eingeführt werden, das benötigt wird, um den Anschluss einer zweiten Medien-Leitung 31 mit gegenüber der dritten Anschluss-Muffe 4 unterschiedlichem Durchmesser zu ermöglichen. Das Adapter-Stück 30 besteht aus einem Spitzende 32, das mit einer Muffe 33 einstückig ausgebildet ist. Die zweite Leitung 31 ist in die Muffe 33 des Adapter-Stücks 30 eingeschoben, wobei in der üblichen Weise eine Dichtung 34 zwischen dem Spitzende 32 der zweiten Leitung 31 und der Muffe 33 des Adapter-Stücks 30 vorgesehen ist.An adapter piece 30 can be inserted into the third connection socket 4, which is required to enable the connection of a second media line 31 with a different diameter than the third connection socket 4. The adapter piece 30 consists of a spigot end 32 which is formed in one piece with a sleeve 33 . The second line 31 is pushed into the socket 33 of the adapter piece 30, a seal 34 being provided between the spigot end 32 of the second line 31 and the socket 33 of the adapter piece 30 in the usual way.

Wie insbesondere Fig. 4 entnehmbar ist, ist benachbart zum freien Ende 35 des Spitzendes 32 ein eine Dichtung 36 aufnehmender Dichtungs-Ringsteg 37 ausgebildet, wobei die Dichtung 36 gegen die zylindrische Innen-Wand 38 der dritten Anschluss-Muffe 4 anliegt, und zwar zwischen dem Standfuß 13 und dem Übergangs-Abschnitt 40 zwischen dem Grundkörper-Mittelteil 9 und dem zylindrischen Haupt-Abschnitt 11. Das Spitzende 32 weist weiterhin zwei rippenförmige Ringstege 41, 42 auf, die das Adapter-Stück 30 radial gegen die dritte Anschluss-Muffe 4 abstützen. Sie nehmen den Standfuß 13 zwischen sich auf, wie den Fig. 3 und 4 entnehmbar ist.How in particular 4 is removable, adjacent to the free end 35 of the spigot end 32 there is a sealing annular web 37 accommodating a seal 36, the seal 36 bearing against the cylindrical inner wall 38 of the third connection sleeve 4, namely between the base 13 and the Transition section 40 between the main body middle part 9 and the cylindrical main section 11. The spigot end 32 also has two rib-shaped annular ridges 41, 42 which support the adapter piece 30 radially against the third connecting sleeve 4. You take the base 13 between them, like that Figures 3 and 4 is removable.

In den Fig. 5 bis 7 ist ein Schacht-Grundkörper 1' dargestellt, der sich von dem bisher beschriebenen Schacht-Grundkörper 1 nur durch die Ausgestaltung der Standfüße 43, 44 unterscheidet. Diese sind am Außenrand des jeweiligen Einführ-Trichters 7' bzw. 8' der zweiten und dritten Anschluss-Muffe 3' bzw. 4' ausgebildet, wie insbesondere Fig. 6 entnehmbar ist. Auch hier haben die Standfüße 43 bzw. 44 einen unteren Außenrand 45, 46, der jeweils senkrecht zur Achse 5 und senkrecht zur Mittel-Achse 16 verläuft. Ansonsten gilt die Beschreibung der Fig. 1 bis 4.In the Figures 5 to 7 a shaft base body 1 'is shown, which differs from the shaft base body 1 previously described only by the design of the feet 43, 44. These are formed on the outer edge of the respective insertion funnel 7' or 8' of the second and third connection sleeve 3' or 4', as in particular 6 is removable. Here, too, the feet 43 and 44 have a lower outer edge 45, 46, which runs perpendicular to the axis 5 and perpendicular to the central axis 16, respectively. Otherwise, the description of the Figures 1 to 4 .

Die Schacht-Grundkörper 1 bzw. 1' sind im sogenannten Rotationsguss hergestellt, der auch als Schleuderguss bezeichnet wird, bei dem eine nur die Außenform des jeweiligen Werkstücks, also des Schacht-Grundkörpers 1 bzw. 1', bildende Formwand vorhanden ist. Der flüssige Kunststoff lagert sich an dieser Formwand mit im Wesentlichen gleicher Wanddicke ab. Hierdurch bedingt können die Standfüße 12, 13 bzw. 43, 44 gebildet werden, ohne dass das Grundkörper-Mittelteil 9 seine hydraulisch glatte Innenform verliert.The shaft body 1 and 1 'are in the so-called Manufactured rotational molding, which is also referred to as centrifugal casting, in which only the outer shape of the respective workpiece, ie the shaft base body 1 or 1 'forming mold wall is present. The liquid plastic is deposited on this mold wall with essentially the same wall thickness. As a result, the feet 12, 13 or 43, 44 can be formed without the main body middle part 9 losing its hydraulically smooth inner shape.

Claims (4)

  1. Shaft base body (1) made of plastics for an inspection or revision shaft, wherein the shaft base body (1,) has
    - a base body central part (9) and, leading into it,
    - connecting sockets (3, 4), having a continuous common axis (5), for media lines (23, 31) or adapter pieces (30), and
    - a connecting member (2), having a longitudinal centre axis (16), for a shaft extension (17),
    wherein at least one foot (12, 13) is in each case formed only on the connecting sockets (3, 4), and
    wherein the feet (12, 13) each have at least one lower outer rim (14, 15), which runs perpendicular to the centre axis (16) of the connecting member (2) and perpendicular to the axis (5) of the connecting socket (3, 4),
    characterized in
    that the at least one foot (12, 13) is formed in the manner of a groove in a cylindrical main portion (10, 11) of a connecting socket (3, 4), that the at least one foot (12, 13) is in each case arranged at a distance from a transition portion (26; 40) between the respective connecting socket (3, 4) and the base body central part (9), and
    that a smooth inner wall (38) is in each case formed between the at least one foot (12, 13) and the respective transition portion (26; 40) for the arrangement for a seal (25, 36).
  2. Shaft base body (1') made of plastics for an inspection or revision shaft,
    wherein the shaft base body (1') has a base body central part (9) and, leading into it,
    - connecting sockets (3', 4'), having a continuous common axis (5), for media lines (23, 31) or adapter pieces (30), and
    - a connecting member (2), having a longitudinal centre axis (16), for a shaft extension (17),
    wherein at least one foot (43, 44) is in each case formed only on the connecting sockets (3', 4'), and
    wherein the feet (43, 44) each have at least one lower outer rim (45, 46), which runs perpendicular to the centre axis (16) of the connecting member (2) and perpendicular to the axis (5) of the connecting socket (3, 4),
    characterized in
    that the at least one foot (43, 44) is formed on the outer edge of a feed hopper (6', 7') of a connecting socket (3', 4'),
    that the at least one foot (12; 13; 43, 44) is in each case arranged at a distance from a transition portion (26; 40) between the respective connecting socket (3, 4; 3', 4') and the base body central part (9), and that a smooth inner wall (38) is in each case formed between the at least one foot (12, 13; 43, 44) and the respective transition portion (26; 40) for the arrangement for a seal (25, 36).
  3. Shaft base body as claimed in claim 1, characterized in that at least one foot (12, 13) has an insertion chamfer (29).
  4. Shaft base body as claimed in any one of claims 1 to 3, characterized in
    that the base body central part (9) disposed between the connecting sockets (3, 4; 3', 4') is partly cylindrical in relation to the axis (5) at least in its lower region.
EP16171205.4A 2015-08-11 2016-05-25 Shaft base body made of plastic for an inspection or revision shaft Active EP3130709B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16171205T PL3130709T3 (en) 2015-08-11 2016-05-25 Shaft base body made of plastic for an inspection or revision shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015215255.3A DE102015215255A1 (en) 2015-08-11 2015-08-11 Shaft base made of plastic for an inspection or inspection shaft

Publications (3)

Publication Number Publication Date
EP3130709A1 EP3130709A1 (en) 2017-02-15
EP3130709B1 EP3130709B1 (en) 2019-03-27
EP3130709B2 true EP3130709B2 (en) 2022-10-26

Family

ID=56194230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16171205.4A Active EP3130709B2 (en) 2015-08-11 2016-05-25 Shaft base body made of plastic for an inspection or revision shaft

Country Status (4)

Country Link
EP (1) EP3130709B2 (en)
DE (1) DE102015215255A1 (en)
DK (1) DK3130709T3 (en)
PL (1) PL3130709T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020212344A1 (en) 2020-09-30 2022-03-31 Ralph Peter Hegler Kit for a water transport line

Citations (3)

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Publication number Priority date Publication date Assignee Title
DE69910259T2 (en) † 1998-12-24 2004-07-01 Wavin B.V. SOLE OF A DRAIN
CN103469884A (en) † 2013-10-10 2013-12-25 唐山奥盛通科技有限公司 Double-plastic composite enhanced type inspection well and preparation method thereof
WO2015011294A1 (en) † 2013-07-26 2015-01-29 Wavin B.V. Stacking aid for a sewage or drainage system inspection chamber and an assembly of such a stacking aid and an inspection chamber

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Publication number Priority date Publication date Assignee Title
GB1577747A (en) * 1976-05-24 1980-10-29 Wavin Bv Plastics inspection chamber
GB2120698B (en) * 1982-05-21 1985-07-24 Hepworth Iron Co Limited The Drainage inspection chamber
GB8807902D0 (en) * 1988-04-05 1988-05-05 Mcaleer J E Inspection chamber
DE4210482A1 (en) 1992-03-31 1993-10-07 Wilhelm Hegler Method and device for the continuous production of a composite pipe with a pipe socket
DE4418370A1 (en) * 1994-05-26 1995-11-30 Raiss Gmbh & Co Kg E System for manufacturing concrete drain components
DE102009013066A1 (en) 2009-03-16 2010-09-23 Hegler, Ralph Peter, Dr.-Ing. Kit for connecting an inspection shaft with a drainage pipe

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69910259T2 (en) † 1998-12-24 2004-07-01 Wavin B.V. SOLE OF A DRAIN
WO2015011294A1 (en) † 2013-07-26 2015-01-29 Wavin B.V. Stacking aid for a sewage or drainage system inspection chamber and an assembly of such a stacking aid and an inspection chamber
CN103469884A (en) † 2013-10-10 2013-12-25 唐山奥盛通科技有限公司 Double-plastic composite enhanced type inspection well and preparation method thereof

Non-Patent Citations (2)

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Title
ANONYMOUS: "Rotational Molding- Wikipedia, the free encyclopedia", 16 July 2015 (2015-07-16), pages 1 - 8, XP055668454, Retrieved from the Internet <URL:https://en.wikipedia.org/w/index.php?title=Rotational_molding&oldid=671658998> †
Übersetzung von CN 103469884 A †

Also Published As

Publication number Publication date
DE102015215255A1 (en) 2017-02-16
EP3130709B1 (en) 2019-03-27
PL3130709T3 (en) 2019-10-31
EP3130709A1 (en) 2017-02-15
DK3130709T3 (en) 2019-07-08

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