EP0351368A1 - 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
EP0351368A1
EP0351368A1 EP89810513A EP89810513A EP0351368A1 EP 0351368 A1 EP0351368 A1 EP 0351368A1 EP 89810513 A EP89810513 A EP 89810513A EP 89810513 A EP89810513 A EP 89810513A EP 0351368 A1 EP0351368 A1 EP 0351368A1
Authority
EP
European Patent Office
Prior art keywords
overflow pipe
recess
parts
pipe according
pipe
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.)
Granted
Application number
EP89810513A
Other languages
German (de)
French (fr)
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EP0351368B1 (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
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Geberit AG
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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 has a much better axial fixation of the pipe parts and which can still 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 opposing projections 11 are attached to the inside 10 of the tubular part 3, 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.

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 aufweist und das dennoch kostengünstig hergestellt werden kann und dicht ist.The invention has for its object to provide an overflow pipe of the type mentioned, which has a much better axial fixation of the pipe parts and which can still be produced inexpensively and is tight.

Beim erfindungsgemässen Ueberlaufrohr 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 inneren Rohrteils, und
  • Fig. 3 einen Querschnitt durch den inneren Rohrteil entlang der Linie III-III.
An embodiment of the invention is explained below with reference to the drawing. Show it:
  • 1 shows a partial longitudinal section through an overflow pipe according to the invention,
  • Fig. 2 is a longitudinal section through the upper end of an inner tube part, and
  • Fig. 3 shows a cross section through the inner tube part 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 3 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 opposing projections 11 are attached to the inside 10 of the tubular part 3, 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 (9)

1. Ueberlaufrohr für ein Ablaufventil eines Spülkastens, das teleskopisch verstellbare Rohrteile (1, 3) aufweist, die gegeneinander abgedichtet sind, gekennzeichnet durch formschlüssige, durch radiales Verdrehen fügbare Verbin­dungsteile (6, 7, 11) an den anliegenden Mantelflächen (5, 10) der Rohrteile (1, 3) und durch einen Dichtungs­ring (9) in einer Ringnut (8) einer dieser Mantelflächen (5).1. Overflow pipe for a drain valve of a cistern, which has telescopically adjustable pipe parts (1, 3) which are sealed against one another, characterized by form-fitting connecting parts (6, 7, 11) which can be joined by radial twisting on the adjacent lateral surfaces (5, 10) the pipe parts (1, 3) and through a sealing ring (9) in an annular groove (8) of one of these lateral surfaces (5). 2. Ueberlaufrohr nach Anspruch 1, dadurch gekennzeichnet, dass ein Verbindungsteil (6, 7) eine sich im wesentlichen über die ganze Länge des einen Rohrteils (3) erstreckende Aus­nehmung mit mehreren sich in Umfangsrichtung erstreckende Quernuten (13) und der andere Verbindungsteil (11) ein in diese Nuten eingreifenden Vorsprung am anderen Rohr­teil (1) ist.2. overflow pipe according to claim 1, characterized in that a connecting part (6, 7) a substantially over the entire length of the one pipe part (3) extending recess with a plurality of circumferentially extending transverse grooves (13) and the other connecting part (11 ) is a projection engaging in these grooves on the other tube part (1). 3. Ueberlaufrohr nach Anspruch 1 oder 2, dadurch gekenn­zeichnet, dass der Dichtungsring (9) ein Lippenring ist.3. overflow pipe according to claim 1 or 2, characterized in that the sealing ring (9) is a lip ring. 4. Ueberlaufrohr nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, dass die Ausnehmung an einem inneren Rohr­teil (3) und der Dichtungsring (9) und die Ringnut (8) am inneren Ende dieses Rohrteils (3) angeordnet sind.4. overflow pipe according to one of claims 2 or 3, characterized in that the recess on an inner tube part (3) and the sealing ring (9) and the annular groove (8) are arranged at the inner end of this tube part (3). 5. Ueberlaufrohr nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Ausnehmung am Einsteckende des entsprechenden Rohrteils (3) zum Einsetzen des Vorsprungs (11) offen ist.5. overflow pipe according to one of claims 1 to 4, characterized in that the recess at the insertion end of the corresponding pipe part (3) for inserting the projection (11) is open. 6. Ueberlaufrohr nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Rohrteile (1, 3) im wesentlichen ohne radiales Spiel zueinander sind.6. overflow pipe according to one of claims 1 to 5, characterized in that the pipe parts (1, 3) are substantially without radial play to each other. 7. Ueberlaufrohr nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass zwei am entsprechenden Rohrteil (3) diametral gegenüberliegende Ausnehmungsteile (6) angeord­net sind.7. overflow pipe according to one of claims 1 to 6, characterized in that two diametrically opposite recess parts (6) are arranged on the corresponding pipe part (3). 8. Ueberlaufrohr nach Anspruch 7, dadurch gekennzeichnet, dass die sich in Umfangsrichtung erstreckenden Quernuten (13) des einen Ausnehmungsteils (6) zu denjenigen des anderen Ausnehmungsteils (6) in Längsrichtung versetzt sind und dass lediglich ein Vorsprung (11) vorgesehen ist, der in den einen oder den anderen Ausnehmungsteil (6) ein­gesetzt ist.8. overflow pipe according to claim 7, characterized in that the circumferentially extending transverse grooves (13) of one recess part (6) to those of the other recess part (6) offset in the longitudinal direction and that only one projection (11) is provided, which is inserted into one or the other recess part (6). 9. Ueberlaufrohr nach einem der Ansprüche 1 bis 8, gekenn­zeichnet durch eine auf der Mantelfläche (5) des äusseren Rohrteils (1) angebrachte Beschriftung (14), welche die Länge des Ueberlaufrohrs angibt.9. overflow pipe according to one of claims 1 to 8, characterized by a on the outer surface (5) of the outer tube part (1) attached label (14) which 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
CH2642/88 1988-07-11
CH264288 1988-07-11

Publications (2)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2695668A1 (en) * 1992-09-14 1994-03-18 Stoc Sa Ets Overflow pipe with star-shaped rim - has ends placed at different levels, upper end with projections close to surface of liquid and lower discharge end below surface
WO1997002387A1 (en) * 1995-07-05 1997-01-23 West Business Oy Sanitary system and method for utilization of used household water
EP1428946A2 (en) * 2002-12-12 2004-06-16 Polypipe Bathroom & Kitchen Products Ltd. 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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1020936B (en) * 1957-12-12
GB2033517A (en) * 1978-11-03 1980-05-21 Lynn W T Adjustable length telescopic sleeves
GB2097667A (en) * 1981-05-06 1982-11-10 Wiltshire William Archibald A device for cleaning the surface of a body of water

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1020936B (en) * 1957-12-12
GB2033517A (en) * 1978-11-03 1980-05-21 Lynn W T Adjustable length telescopic sleeves
GB2097667A (en) * 1981-05-06 1982-11-10 Wiltshire William Archibald A device for cleaning the surface of a body of water

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2695668A1 (en) * 1992-09-14 1994-03-18 Stoc Sa Ets Overflow pipe with star-shaped rim - has ends placed at different levels, upper end with projections close to surface of liquid and lower discharge end below surface
WO1997002387A1 (en) * 1995-07-05 1997-01-23 West Business Oy Sanitary system and method for utilization of used household water
EP1428946A2 (en) * 2002-12-12 2004-06-16 Polypipe Bathroom & Kitchen Products Ltd. Valve assembly
EP1428946A3 (en) * 2002-12-12 2004-12-29 Polypipe Bathroom & Kitchen Products Ltd. Valve assembly
GB2397634B (en) * 2002-12-12 2006-05-17 Polypipe Bathroom & Kitchen Pr Valve assembly for discharging a cistern
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

Also Published As

Publication number Publication date
EP0351368B1 (en) 1992-01-29
DE8907086U1 (en) 1989-09-07
DE58900792D1 (en) 1992-03-12
ATE72280T1 (en) 1992-02-15

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