EP0538623B1 - Pipe disconnector built into the wall - Google Patents
Pipe disconnector built into the wall Download PDFInfo
- Publication number
- EP0538623B1 EP0538623B1 EP19920115882 EP92115882A EP0538623B1 EP 0538623 B1 EP0538623 B1 EP 0538623B1 EP 19920115882 EP19920115882 EP 19920115882 EP 92115882 A EP92115882 A EP 92115882A EP 0538623 B1 EP0538623 B1 EP 0538623B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- case
- operating portion
- interruptor
- connection
- connections
- 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
Links
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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
- E03C1/02—Plumbing installations for fresh water
- E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
- E03C1/102—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves using an air gap device
Definitions
- the invention relates to a concealed pipe interrupter according to the preamble of claim 1.
- Pipe interrupters are used in drinking water pipes in the flow direction between the water shut-off and the water drain, such as. B. installed a shower hose to prevent the back suction of contaminated water into the drinking water network in the event of a pressure drop in the drinking water line.
- the pipe interrupter is formed with air inlet openings, which are open in a conventional design at zero flow and are only closed from the inside by moving parts of the pipe interrupter at internal pressure-generating water flow and which on the outside of the pipe interrupter z. B. must be formed by the mouth between deeply cut housing ribs so that covering and closing of the air inlet openings on the outside of the pipe interrupter is prevented.
- a flush-mounted installation of pipe interrupters is often desired, especially in the sanitary area, instead of an exposed installation.
- a tubular interrupter functional part is inserted, when inserted into a round flush-mounted box, with the end faces of its inlet and outlet ends butt against the end faces of the two line connections opening into the flush-mounted box at diametrically opposite locations and by O-rings between the end faces of the Interrupter function part and the line connections sealed.
- This requires a precise adjustment of the end faces and the overall length of the interrupter function part to the geometry of the round flush-mounted box and its line connections and makes the flush-mounted pipe interrupter expensive and complicated.
- the object of the invention is therefore to create a flush-mounted pipe interrupter which does not require any expensive and complicated production outlay and which can be installed simply and reliably and can also be serviced during operation.
- the flush-mounted pipe interrupter consists of a wall mounting box 1 and a tubular interrupter function part 2 of a type which is known per se and which requires a downward flow direction.
- the wall mounting box 1 which is open at the front and can be closed by a lid, has on its top an inlet connection 3 and on its underside an outlet connection 4.
- the interrupter function part 2 is formed with a cylindrical outlet end 5 which contains an O-sealing ring 6 on its circumference and which can be inserted axially into the outlet connection 4 and sealingly with the O-ring 6.
- the functional part 2 is formed with an axial length that is shorter than the clear distance between the openings of the two connections 3 and 4 in the wall installation box 1.
- a sliding sleeve 7 is inserted, which is axially displaceable in the inlet connection 3 and sealed with an O-ring 8.
- a removable clip 12 is placed on the sliding nozzle 7, which clip fills the distance between an end face 13 of the inlet connection 3 and a stop shoulder 14 formed on the sliding nozzle 7, so that the sliding grommet 7 cannot inadvertently retreat into the inlet connection 3.
- the wall box 1 is provided inside with ribs 15, which are provided with a trough-shaped recess 16 adapted to the circumferential contour of the interrupter functional part 2, that the functional part 2 is guided through the ribs 15 in a position in which the Longitudinal axis of the functional part 2 essentially with the longitudinal axes of the two connections 3 and 4 are aligned. This simplifies the insertion of the functional part 2 into the drain connection 4 and the insertion of the sliding spout 7 into the functional part 2 in a quick and safe manner.
Description
Die Erfindung betrifft einen Unterputz-Rohrunterbrecher gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a concealed pipe interrupter according to the preamble of
Rohrunterbrecher werden in Trinkwasserleitungen in Fließrichtung zwischen der Wasserabsperrung und dem Wasserablauf, wie z. B. einem Brauseschlauch eingebaut, um bei einem auftretenden Druckabfall in der Trinkwasserleitung eine Rücksaugung von verunreinigtem Wasser in das Trinkwassernetz zu unterbinden. Hierzu ist der Rohrunterbrecher mit Lufteintrittsöffnungen ausgebildet, die bei einer gebräuchlichen Bauform bei Nulldurchfluß offen sind und nur bei innerem Überdruck erzeugenden Wasserdurchfluß durch bewegliche Teile des Rohrunterbrechers von innen her verschlossen sind und die auf der Außenseite des Rohrunterbrechers z. B. durch Ausmündung zwischen tief eingeschnittenen Gehäuserippen so ausgebildet sein müssen, daß ein Abdecken und Verschließen der Lufteintrittsöffnungen auf der Außenseite des Rohrunterbrechers verhindert ist. Wegen der dadurch bedingten äußeren Erscheinungsform und Baugröße wird häufig vor allem im Sanitärbereich anstelle einer freiliegenden Installation eine Unterputzinstallation von Rohrunterbrechern gewünscht. Bei einem hierfür bekannten Unterputz-Rohrunterbrecher wird ein rohrförmiges Unterbrecherfunktionsteil beim Einsetzen in eine runde Unterputzdose mit den Stirnflächen seines Eintritts- und Austrittsendes stumpf an die Stirnflächen der beiden in die Unterputzdose an diametral gegenüberliegenden Stellen einmündenden Leitungsanschlüsse angesetzt und durch O-Ringe zwischen den Stirnflächen des Unterbrecherfunktionsteils und der Leitungsanschlüsse abgedichtet. Dies erfordert eine genaue Anpassung der Stirnflächen und der Baulänge des Unterbrecherfunktionsteils an die Geometrie der runden Unterputzdose und deren Leitungsanschlüsse und macht den Unterputz-Rohrunterbrecher teuer und kompliziert. Die Abdichtung der Stirnflächenberührung von funktionsteil und Dosenanschlüssen ist beim Einsetzen des Funktionsteils in die Dose unsicher, da beim Einschieben des Funktionsteils quer zu dessen Längsachse zwischen die Enden der Leitungsanschlüsse eine Beschädigung der O-Ringe eintreten kann. Wegen der stumpf aneinanderstoßenden Berührung der Stirnflächen des Funktionsteils und der Dosenanschlüsse ist das funktionsteil auch in der Unterputzdose um die Dosenachse verdrehbar, was für den praktischen Gebrauch des Unterputz-Rohrunterbrechers gefährlich ist.Pipe interrupters are used in drinking water pipes in the flow direction between the water shut-off and the water drain, such as. B. installed a shower hose to prevent the back suction of contaminated water into the drinking water network in the event of a pressure drop in the drinking water line. For this purpose, the pipe interrupter is formed with air inlet openings, which are open in a conventional design at zero flow and are only closed from the inside by moving parts of the pipe interrupter at internal pressure-generating water flow and which on the outside of the pipe interrupter z. B. must be formed by the mouth between deeply cut housing ribs so that covering and closing of the air inlet openings on the outside of the pipe interrupter is prevented. Because of the resulting external appearance and size, a flush-mounted installation of pipe interrupters is often desired, especially in the sanitary area, instead of an exposed installation. In a flush-mounted pipe interrupter known for this purpose, a tubular interrupter functional part is inserted, when inserted into a round flush-mounted box, with the end faces of its inlet and outlet ends butt against the end faces of the two line connections opening into the flush-mounted box at diametrically opposite locations and by O-rings between the end faces of the Interrupter function part and the line connections sealed. This requires a precise adjustment of the end faces and the overall length of the interrupter function part to the geometry of the round flush-mounted box and its line connections and makes the flush-mounted pipe interrupter expensive and complicated. The sealing of the end face contact of the functional part and socket connections is unsafe when inserting the functional part into the socket, since when the functional part is inserted transversely to its longitudinal axis, damage to the O-rings can occur between the ends of the line connections. Because of the butt joint of the end faces of the functional part and the socket connections, the functional part can also be rotated around the socket axis in the flush-mounted box, which is dangerous for the practical use of the flush-mounted pipe interrupter.
Die Erfindung hat daher zur Aufgabe, einen Unterputz-Rohrunterbrecher zu schaffen, der keinen teuren und komplizierten Herstellungsaufwand erfordert und der einfach und zuverlässig installiert und auch im Betrieb gewartet werden kann.The object of the invention is therefore to create a flush-mounted pipe interrupter which does not require any expensive and complicated production outlay and which can be installed simply and reliably and can also be serviced during operation.
Diese Aufgabe wird erfindungsgemäß durch die Ausbildung des Rohrunterbrechers der eingangs genannten Art mit den im Kennzeichnungsteil des Anspruchs 1 aufgeführten Merkmalen gelöst. Eine nähere Beschreibung des erfindungsgemäßen Unterputz-Rohrunterbrechers folgt anhand der Zeichnung, in der ein Ausführungsbeispiel dargestellt ist. Es zeigt
Figur 1 den Unterputz-Rohrunterbrecher in einem senkrechten Querschnitt,Figur 2 den Unterputz-Rohrunterbrecher in der Frontansicht.
- 1 shows the flush-mounted pipe interrupter in a vertical cross section,
- Figure 2 shows the concealed pipe interrupter in the front view.
Der Unterputz-Rohrunterbrecher besteht aus einem Wandeinbaukasten 1 und einem rohrförmigen Unterbrecherfunktionsteil 2 an sich bekannter Bauart, die eine abwärtsgerichtete Durchflußrichtung bedingt. Der an seiner Vorderseite offene, durch einen Deckel verschließbare Wandeinbaukasten 1 besitzt an seiner Oberseite einen Zulaufanschluß 3 und an seiner Unterseite einen Ablaufanschluß 4. Das Unterbrecherfunktionsteil 2 ist mit einem zylindrischen Austrittsende 5 ausgebildet, das auf seinem Umfang einen O-Dichtungsring 6 enthält und das in den Ablaufanschluß 4 axial und mit dem O-Ring 6 abdichtend einsteckbar ist. Für diese axiale Einsteckbarkeit sowie für die nachstehend noch beschriebene Verbindung mit dem Zulaufanschluß ist das Funktionsteil 2 mit einer axialen Länge ausgebildet, die kürzer ist als der lichte Abstand zwischen den Einmündungen der beiden Anschlüsse 3 und 4 in den Wandeinbaukasten 1. In das in den Kasten 1 einmündende Ende des Zulaufanschlusses 3 ist eine Schiebetülle 7 eingeschoben, die in dem Zulaufanschluß 3 axial verschiebbar und mit einem O-Ring 8 abgedichtet ist. Das aus dem Zulaufanschluß 3 herausragende, dem Unterbrecherfunktionsteil 2 zugekehrte Ende 9 der Schiebetülle 7 ist, nachdem das Funktionsteil 2 in den Kasten 1 eingeführt und in den Ablaufanschluß 4 eingesteckt ist, durch Herausziehen aus dem Zulaufanschluß 3 in das Eintrittsende 10 des Funktionsteils 2 einsteckbar und durch einen O-Ring 11 abgedichtet. Zur Sicherung der Verbindung von Zulaufanschluß 3, Funktionsteil 2 und Ablaufanschluß 4 durch axiales Ineinanderstecken ist auf die Schiebetülle 7 ein abnehmbarer Clip 12 aufgesetzt, der den Abstand zwischen einer Stirnfläche 13 des Zulaufanschlusses 3 und einer an der Schiebetülle 7 ausgebildeten Anschlagschulter 14 ausfüllt, so daß die Schiebetülle 7 nicht ungewollt in den Zulaufanschluß 3 zurückweichen kann. Der Wandeinbaukasten 1 ist im Innern mit Rippen 15 versehen, die derart mit einer der Umfangskontur des Unterbrecherfunktionsteils 2 angepaßten muldenförmigen Vertiefung 16 versehen sind, daß das Funktionsteil 2 beim Einführen in den Kasten 1 durch die Rippen 15 in einer Position geführt ist, in der die Längsachse des Funktionsteils 2 im wesentlichen mit den Längsachsen der beiden Anschlüsse 3 und 4 fluchtet. Dadurch wird das Einstecken des Funktionsteils 2 in den Ablaufanschluß 4 und das Einstecken der Schiebetülle 7 in das Funktionsteil 2 zu einem raschen und sicheren Handgriff vereinfacht.The flush-mounted pipe interrupter consists of a
Claims (3)
- Concealed pipe interruptor comprising a wall mounting case (1) which has an upper supply connection (3) and a lower discharge connection (4) and is closable at its front side by a removable cover and a substantially tubular interruptor operating portion (2) which is sealingly and removably inserted in the case between the two connections which open out into the case, characterised in that the operating portion (2) has an axial length which is less than the distance between the mouths of the two connections (3, 4) in the case (1), that also the functioning portion is constructed with a cylindrical outlet end (5) which is insertable with an O-ring seal (6) into the discharge connection (4) of the case and that the supply connection (3) of the case is constructed with a sliding socket (7) which is axially and sealingly movable in the connection, the end (9) of which projecting out of the supply connection is insertable with an O-ring seal (11) into the inlet end (10) of the operating portion.
- Concealed pipe interruptor as claimed in Claim 1, characterised in that, after insertion into the operating portion (2), a clip may be mounted on the sliding socket (7) which fills the gap between an end face (13) of the supply connection (3) and an abutment shoulder (14) on the sliding socket.
- Concealed pipe interruptor as claimed in Claim 1 or 2, characterised in that the wall mounting case (1) is provided in its interior with ribs (15) which are provided with a recess (16) matched to the peripheral contour of the interruptor operating portion (2) by which the operating portion (2) is guided, on insertion into the case (1), coaxially with the two connections (3, 4) of the case.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9113239U | 1991-10-24 | ||
DE9113239U DE9113239U1 (en) | 1991-10-24 | 1991-10-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0538623A1 EP0538623A1 (en) | 1993-04-28 |
EP0538623B1 true EP0538623B1 (en) | 1995-11-22 |
Family
ID=6872573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19920115882 Expired - Lifetime EP0538623B1 (en) | 1991-10-24 | 1992-09-17 | Pipe disconnector built into the wall |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0538623B1 (en) |
DE (2) | DE9113239U1 (en) |
DK (1) | DK0538623T3 (en) |
ES (1) | ES2081538T3 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0639675B1 (en) * | 1993-08-17 | 1997-09-24 | Kwc Ag | Backflow prevention valve |
ATE158045T1 (en) * | 1993-08-17 | 1997-09-15 | Kwc Ag | SANITARY SAFETY DEVICE TO PREVENT BACKFLOW OF WATER |
DE202012002585U1 (en) * | 2012-03-13 | 2013-06-17 | Neoperl Gmbh | Backflow barrier for a shower |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2663309A (en) * | 1949-12-16 | 1953-12-22 | Sloan Valve Co | Vacuum breaker |
DE3532180C1 (en) * | 1985-09-10 | 1987-04-30 | Baelz Juergen Controls | Device for shutting off a pipeline, especially a drinking-water line |
DE3616267A1 (en) * | 1986-05-14 | 1987-11-19 | Baelz Juergen Controls | Shut-off and aerating device, in particular pipe disconnector for drinking-water lines |
ATE69280T1 (en) * | 1987-03-02 | 1991-11-15 | Schubert & Salzer Gmbh & Co | PIPE BREAKER. |
DE8709163U1 (en) * | 1987-07-03 | 1987-08-27 | Keramag Keramische Werke Ag, 4030 Ratingen, De | |
DE9011042U1 (en) * | 1990-07-17 | 1990-09-27 | Eggemann Gmbh Armaturenfabrik, 5860 Iserlohn, De |
-
1991
- 1991-10-24 DE DE9113239U patent/DE9113239U1/de not_active Expired - Lifetime
-
1992
- 1992-09-17 DK DK92115882T patent/DK0538623T3/en active
- 1992-09-17 DE DE59204427T patent/DE59204427D1/en not_active Expired - Fee Related
- 1992-09-17 EP EP19920115882 patent/EP0538623B1/en not_active Expired - Lifetime
- 1992-09-17 ES ES92115882T patent/ES2081538T3/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES2081538T3 (en) | 1996-03-16 |
DK0538623T3 (en) | 1996-03-04 |
DE9113239U1 (en) | 1992-01-16 |
DE59204427D1 (en) | 1996-01-04 |
EP0538623A1 (en) | 1993-04-28 |
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