EP0351368B1 - Overflow pipe for the outlet valve of a cistern - Google Patents

Overflow pipe for the outlet valve of a cistern Download PDF

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Publication number
EP0351368B1
EP0351368B1 EP89810513A EP89810513A EP0351368B1 EP 0351368 B1 EP0351368 B1 EP 0351368B1 EP 89810513 A EP89810513 A EP 89810513A EP 89810513 A EP89810513 A EP 89810513A EP 0351368 B1 EP0351368 B1 EP 0351368B1
Authority
EP
European Patent Office
Prior art keywords
pipe
overflow pipe
parts
recess
overflow
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.)
Expired - Lifetime
Application number
EP89810513A
Other languages
German (de)
French (fr)
Other versions
EP0351368A1 (en
Inventor
René Dolder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Geberit AG
Original Assignee
Geberit AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Geberit AG filed Critical Geberit AG
Priority to AT89810513T priority Critical patent/ATE72280T1/en
Publication of EP0351368A1 publication Critical patent/EP0351368A1/en
Application granted granted Critical
Publication of EP0351368B1 publication Critical patent/EP0351368B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/24—Overflow devices for basins or baths
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices

Definitions

  • the invention relates to an overflow pipe according to the preamble of independent claim 1.
  • An overflow pipe with two telescopically adjustable, mutually sealed pipe parts is known.
  • the length of this overflow pipe can be adjusted to suit different operations.
  • a nut is screwed onto the insertion end of the outer pipe, which presses an elastic sealing ring with a wedge-shaped cross section between the pipe parts.
  • the axial fixation is often not sufficiently large so that the length of the overflow pipe is adjusted. The operation and function of the drain valve is then no longer optimal.
  • the invention has for its object to provide an overflow pipe of the type mentioned, which ensures a much better axial fixation of the pipe parts and which is easy to assemble and yet can be produced inexpensively and is tight.
  • the pipe parts are positively fixed in the axial direction. With all types of actuation and even after long use, it is ensured that the length of the overflow pipe does not change.
  • the overflow pipe only consists of three individual parts that can be manufactured and assembled inexpensively. Further advantageous developments result from the dependent claims.
  • the overflow pipe has an outer pipe part 1 with a valve plate 2 and an inner pipe part 3 with an eyelet 4 for fastening a cistern actuation, not shown here.
  • the actuation can be pneumatic, electrical or purely mechanical and in each case causes the overflow pipe to be raised, which works together with a float valve, not shown here.
  • the inner tube part 3 has one or more recess parts 6 in the lateral surface 5, which extend essentially over the entire length of the tube part 3 and of which only one is shown here.
  • the recess parts 6 are of exactly the same design and can be converted into one another by an axial rotation of the tube part 3 by 180 °.
  • the recess parts 6 are connected to one another via an annular recess part 7 at the lower end of the tubular part 3.
  • one or more opposite projections 11 are attached to the inside 10 of the tubular part 1, each of which engages in a recess part 6. If the projections 11 are each in a longitudinal groove 12 of the recess parts 6, the two tube parts 1 and 3 can be telescopically extended to approximately twice the length shown in FIG. 1.
  • each projection 11 being introduced into a transverse groove 13.
  • the depth of the recess parts 6 and 7 and the transverse grooves 13 is the same everywhere and is about 1 mm.
  • the pipe part 3 is guided essentially without radial play in the pipe part 1, so that the two pipe parts 1 and 3 are always exactly coaxially aligned with one another.
  • the projections 11 inserted into the transverse grooves 13 fix the two pipe parts 1 and 3 in a form-fitting manner in the axial direction. Due to the friction of the lip ring 9, the two pipe parts 1 and 3 are also fixed to the extent that they cannot be unintentionally released by radial twisting. This fixation is reinforced by a catch of the projections 11 in the transverse grooves 13, which are narrowed in some areas as shown in FIG. 1.
  • the recess part 7 serves to introduce the projections 11 into the recess parts 6 when the tube parts 1 and 3 are plugged together.
  • the axial adjustment is given by the distances between the transverse grooves 13. Twice as fine adjustment is possible if only one projection 11 is provided and the recess parts 6 are offset in the longitudinal direction by half the distance between adjacent transverse grooves 13.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Joints Allowing Movement (AREA)
  • Sliding Valves (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Removal Of Water From Condensation And Defrosting (AREA)

Abstract

The overflow pipe consists of an outer pipe part (1) having a valve disc (2) at the free end and an inner pipe part (3) having an eye (4) for fastening the valve actuation means. The two pipe parts (1, 3) are telescopically adjustable, a lip ring (9) sealing the two parts watertightly relative to one another. For axial fixing, the outer pipe part (3) has on its inner side (10) projections (11) which each engage in one of a plurality of transverse grooves (13) in the circumferential surface (5) of the inner pipe part (3). <IMAGE>

Description

Die Erfindung betrifft ein Ueberlaufrohr nach dem Oberbegriff des unabhängigen Patentanspruchs 1.The invention relates to an overflow pipe according to the preamble of independent claim 1.

Ein Ueberlaufrohr mit zwei teleskopisch verstellbaren, gegeneinander abgedichteten Rohrteilen ist bekannt. Die Länge dieses Ueberlaufrohrs kann zur Anpassung an unterschiedliche Betätigungen verstellt werden. Um die beiden Rohrteile gegeneinander abzudichten und axial zu fixieren, ist auf das Einsteckende des äusseren Rohres eine Mutter aufgeschraubt, die einen elastischen Dichtungsring mit keilförmigem Querschnitt zwischen die Rohrteile presst. Bei starkem axialem Zug oder Druck am Ueberlaufrohr während der Ventilbetätigung ist die axiale Fixierung oft nicht genügend gross, so dass die Länge des Ueberlaufrohrs verstellt wird. Die Betätigung und Funktion des Ablaufventils ist dann nicht mehr optimal.An overflow pipe with two telescopically adjustable, mutually sealed pipe parts is known. The length of this overflow pipe can be adjusted to suit different operations. In order to seal the two pipe parts against each other and to fix them axially, a nut is screwed onto the insertion end of the outer pipe, which presses an elastic sealing ring with a wedge-shaped cross section between the pipe parts. In the event of strong axial pull or pressure on the overflow pipe during valve actuation, the axial fixation is often not sufficiently large so that the length of the overflow pipe is adjusted. The operation and function of the drain valve is then no longer optimal.

Der Erfindung liegt die Aufgabe zugrunde, ein Ueberlaufrohr der genannten Art zu schaffen, das eine wesentlich bessere axiale Fixierung der Rohrteile gewährleistet und das einfachen montierbar ist und dennoch kostengünstig hergestellt werden kann und dicht ist.The invention has for its object to provide an overflow pipe of the type mentioned, which ensures a much better axial fixation of the pipe parts and which is easy to assemble and yet can be produced inexpensively and is tight.

Beim erfindungsgemässen Ueberlaufrohr gemäß Anspruch 1 sind die Rohrteile in Achsrichtung formschlüssig fixiert. Bei allen Betätigungsarten und auch nach langem Gebrauch ist gewährleistet, dass die Länge des Ueberlaufrohrs sich nicht ändert. Das Ueberlaufrohr besteht lediglich noch aus drei Einzelteilen, die kostengünstig hergestellt und montiert werden können. Weitere vorteilhafte Weiterbildungen ergeben sich aus den abhängigen Ansprüchen.In the overflow pipe according to the invention, the pipe parts are positively fixed in the axial direction. With all types of actuation and even after long use, it is ensured that the length of the overflow pipe does not change. The overflow pipe only consists of three individual parts that can be manufactured and assembled inexpensively. Further advantageous developments result from the dependent claims.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung näher erläutert Es zeigen:

Fig. 1
einen Teillängsschnitt durch ein erfindungsgemässes Ueberlaufrohr,
Fig. 2
einen Längsschnitt durch das obere Ende eines äusseren Rohrteils, und
Fig. 3
einen Querschnitt durch den äusseren Rohrteil entlang der Linie III-III.

An embodiment of the invention is explained in more detail below with reference to the drawing.
Fig. 1
a partial longitudinal section through an overflow pipe according to the invention,
Fig. 2
a longitudinal section through the upper end of an outer tubular part, and
Fig. 3
a cross section through the outer tube section along the line III-III.

Das Ueberlaufrohr weist einen äusseren Rohrteil 1 mit einem Ventilteller 2 und einen inneren Rohrteil 3 mit einer Oese 4 zur Befestigung einer hier nicht gezeigten Spülkastenbetätigung auf. Die Betätigung kann pneumatisch, elektrisch oder rein mechanisch sein und bewirkt jeweils ein Anheben des Ueberlaufrohrs, das mit einem hier nicht gezeigten Schwimmerventil zusammenarbeitet.The overflow pipe has an outer pipe part 1 with a valve plate 2 and an inner pipe part 3 with an eyelet 4 for fastening a cistern actuation, not shown here. The actuation can be pneumatic, electrical or purely mechanical and in each case causes the overflow pipe to be raised, which works together with a float valve, not shown here.

Der innere Rohrteil 3 besitzt in der Mantelfläche 5 ein oder mehrere Ausnehmungsteile 6, die sich im wesentlichen über die ganze Länge des Rohrteils 3 erstrecken und von denen hier nur einer gezeigt ist. Die Ausnehmungsteile 6 sind genau gleich ausgebildet und können durch eine axiale Drehung des Rohrteils 3 um 180° ineinander übergeführt werden. Ueber einen ringförmigen Ausnehmungsteil 7 am unteren Ende des Rohrteils 3 sind die Ausnehmungsteile 6 miteinander verbunden. Im Ausnehmungsteil 7 befindet sich eine Ringnut 8, in die ein Lippenring 9 eingesetzt ist, der die beiden Rohrteile 1 und 3 wasserdicht gegeneinander abdichtet.The inner tube part 3 has one or more recess parts 6 in the lateral surface 5, which extend essentially over the entire length of the tube part 3 and of which only one is shown here. The recess parts 6 are of exactly the same design and can be converted into one another by an axial rotation of the tube part 3 by 180 °. The recess parts 6 are connected to one another via an annular recess part 7 at the lower end of the tubular part 3. In the recess part 7 there is an annular groove 8, into which a lip ring 9 is inserted, which seals the two pipe parts 1 and 3 against each other in a watertight manner.

Wie die Fig. 2 und 3 zeigen, sind auf der Innenseite 10 des Rohrteils 1 ein oder mehrere gegenüberliegende Vorsprünge 11 angebracht, die jeweils in einen Ausnehmungsteil 6 eingreifen. Befinden sich die Vorsprünge 11 jeweils in einer Längsnut 12 der Ausnehmungsteile 6, so lassen sich die beiden Rohrteile 1 und 3 teleskopisch auf etwa das doppelte der in Fig. 1 gezeigten Länge ausziehen.As shown in FIGS. 2 and 3, one or more opposite projections 11 are attached to the inside 10 of the tubular part 1, each of which engages in a recess part 6. If the projections 11 are each in a longitudinal groove 12 of the recess parts 6, the two tube parts 1 and 3 can be telescopically extended to approximately twice the length shown in FIG. 1.

Zur axialen Fixierung der Rohrteile 1 und 3 werden diese radial zueinander verdreht, wobei jeder Vorsprung 11 in eine Quernut 13 eingebracht wird. Die Tiefe der Ausnehmungsteile 6 und 7 und der Quernuten 13 ist überall gleich und beträgt etwa 1 mm. Der Rohrteil 3 ist im wesentlichen ohne radiales Spiel im Rohrteil 1 geführt, so dass die beiden Rohrteile 1 und 3 immer genau koaxial zueinander ausgerichtet sind.To axially fix the pipe parts 1 and 3, they are rotated radially with respect to one another, each projection 11 being introduced into a transverse groove 13. The depth of the recess parts 6 and 7 and the transverse grooves 13 is the same everywhere and is about 1 mm. The pipe part 3 is guided essentially without radial play in the pipe part 1, so that the two pipe parts 1 and 3 are always exactly coaxially aligned with one another.

Die in die Quernuten 13 eingesetzten Vorsprünge 11 fixieren die beiden Rohrteile 1 und 3 in Achsrichtung formschlüssig. Durch die Reibung des Lippenrings 9 sind die beiden Rohrteile 1 und 3 auch soweit fixiert, dass sich diese nicht unbeabsichtigt durch radiales Verdrehen lösen können. Diese Fixierung wird durch eine Rastung der Vorsprünge 11 in den Quernuten 13, die wie in Fig. 1 gezeigt bereichsweise verengt sind, verstärkt.The projections 11 inserted into the transverse grooves 13 fix the two pipe parts 1 and 3 in a form-fitting manner in the axial direction. Due to the friction of the lip ring 9, the two pipe parts 1 and 3 are also fixed to the extent that they cannot be unintentionally released by radial twisting. This fixation is reinforced by a catch of the projections 11 in the transverse grooves 13, which are narrowed in some areas as shown in FIG. 1.

Der Ausnehmungsteil 7 dient zur Einführung der Vorsprünge 11 in die Ausnehmungsteile 6 beim Zusammenstecken der Rohrteile 1 und 3. Bei dieser Ausführung ist die axiale Verstellung durch die Abstände zwischen den Quernuten 13 gegeben. Eine doppelt so feine Verstellung ist möglich, wenn lediglich ein Vorsprung 11 vorgesehen ist und die Ausnehmungsteile 6 in Längsrichtung um den halben Abstand zwischen benachbarten Quernuten 13 versetzt sind.The recess part 7 serves to introduce the projections 11 into the recess parts 6 when the tube parts 1 and 3 are plugged together. In this embodiment, the axial adjustment is given by the distances between the transverse grooves 13. Twice as fine adjustment is possible if only one projection 11 is provided and the recess parts 6 are offset in the longitudinal direction by half the distance between adjacent transverse grooves 13.

Claims (8)

1. Overflow pipe for a discharge valve of a cistern, which pipe has telescopically adjustable pipe parts (1, 3) which are sealed off in relation to each other, characterised by connection parts (6, 7, 11), which can be joined together positively by radial rotation, on the adjoining outer surfaces (5, 10) of the pipe parts (1, 3), one connection part (6, 7) being formed by a recess (12), extending essentially over the entire length of the one pipe part (3) and having a plurality of transverse grooves (13) extending in the circumferential direction, and the other connection part (11) being formed by a projection, engaging in these grooves, on the other pipe part (1), and by a sealing ring (9) in an annular groove (8) of one of these outer surfaces (5), which sealing ring seals off the pipe parts (1, 3) in relation to each other and fixes them to the extent that they cannot inadvertently become detached by radial rotation.
2. Overflow pipe according to Claim 1, characterised in that the sealing ring (9) is a lip ring.
3. Overflow pipe according to one of Claims 1 to 2, characterised in that the recess is arranged on an inner pipe part (3) and the sealing ring (9) and the annular groove (8) are arranged at the inner end of this pipe part (3).
4. Overflow pipe according to one of Claims 1 to 3, characterised in that the recess at the insertion end of the corresponding pipe part (3) is open for insertion of the projection (11).
5. Overflow pipe according to one of Claims 1 to 4, characterised in that the pipe parts (1, 3) are arranged essentially without radial clearance relative to each other.
6. Overflow pipe according to one of Claims 1 to 5, characterised in that two recess parts (6) are arranged diametrically opposite each other on the corresponding pipe part (3).
7. Overflow pipe according to Claim 6, characterised in that the transverse grooves (13), extending in the circumferential direction, of the one recess part (6) are offset in the longitudinal direction relative to those of the other recess part (6), and in that only one projection (11) is provided, which is inserted in the one or other recess part (6).
8. Overflow pipe according to one of Claims 1 to 7, characterised by a label (14) which is mounted on the outer surface (5) of the inner pipe part (3) and indicates the length of the overflow pipe.
EP89810513A 1988-07-11 1989-07-06 Overflow pipe for the outlet valve of a cistern Expired - Lifetime EP0351368B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89810513T ATE72280T1 (en) 1988-07-11 1989-07-06 OVERFLOW PIPE FOR A FLUSH WATER DRAIN VALVE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH264288 1988-07-11
CH2642/88 1988-07-11

Publications (2)

Publication Number Publication Date
EP0351368A1 EP0351368A1 (en) 1990-01-17
EP0351368B1 true EP0351368B1 (en) 1992-01-29

Family

ID=4238344

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89810513A Expired - Lifetime EP0351368B1 (en) 1988-07-11 1989-07-06 Overflow pipe for the outlet valve of a cistern

Country Status (3)

Country Link
EP (1) EP0351368B1 (en)
AT (1) ATE72280T1 (en)
DE (2) DE8907086U1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2695668B1 (en) * 1992-09-14 1994-12-16 Stoc Sa Ets Overflow device, in particular for a flush tank.
FI96628C (en) * 1995-07-05 1996-07-25 West Business Oy Sanitation system and procedure for utilizing used domestic water
GB0229014D0 (en) * 2002-12-12 2003-01-15 Polypipe Bathroom & Kitchen Pr Valve assembly
DE102007010089A1 (en) * 2007-03-02 2008-09-04 Hella Kgaa Hueck & Co. Washing device for a lamp glass in a vehicle's lighting device has interlinked tubular connecting pieces, a nozzle and an automatic ratchet with a locking element

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1020936B (en) * 1957-12-12
GB2033517B (en) * 1978-11-03 1983-01-19 Lynn W T Adjustable length telescopic sleeves
GB2097667B (en) * 1981-05-06 1985-03-13 Wiltshire William Archibald A device for cleaning the surface of a body of water

Also Published As

Publication number Publication date
DE8907086U1 (en) 1989-09-07
EP0351368A1 (en) 1990-01-17
DE58900792D1 (en) 1992-03-12
ATE72280T1 (en) 1992-02-15

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