DE3915834C1 - End connector for pipes - has pipe coupling spigot with axial fluid drain grooves - Google Patents

End connector for pipes - has pipe coupling spigot with axial fluid drain grooves

Info

Publication number
DE3915834C1
DE3915834C1 DE19893915834 DE3915834A DE3915834C1 DE 3915834 C1 DE3915834 C1 DE 3915834C1 DE 19893915834 DE19893915834 DE 19893915834 DE 3915834 A DE3915834 A DE 3915834A DE 3915834 C1 DE3915834 C1 DE 3915834C1
Authority
DE
Germany
Prior art keywords
pipe coupling
grooves
spigot
socket
coupling
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 - Fee Related
Application number
DE19893915834
Other languages
German (de)
Inventor
Bruno Ing.(Grad.) 4650 Gelsenkirchen De Drosdol
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.)
DROSDOL, BRUNO, ING.(GRAD.), 45896 GELSENKIRCHEN,
Original Assignee
Bruno Ing.(Grad.) 4650 Gelsenkirchen De Drosdol
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
Priority claimed from DE19883805605 external-priority patent/DE3805605A1/en
Application filed by Bruno Ing.(Grad.) 4650 Gelsenkirchen De Drosdol filed Critical Bruno Ing.(Grad.) 4650 Gelsenkirchen De Drosdol
Priority to DE19893915834 priority Critical patent/DE3915834C1/en
Application granted granted Critical
Publication of DE3915834C1 publication Critical patent/DE3915834C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/02—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined
    • F16L37/04—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined with an elastic outer part pressing against an inner part by reason of its elasticity
    • F16L37/06—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined with an elastic outer part pressing against an inner part by reason of its elasticity tightened by fluid pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

A pipe coupling spigot (2) for axial insertion into a coupling spigot, is provided with a large number of external ring grooves (56) and several axial fluid drain grooves (10). The leading spigot end has a plain, cylindrical profile with a taper (7) leading into the grooved section. The coupling bush is provided with an equal number of internal ring grooves of equal size and shape. When the spigot is inserted, the two sets of ring grooves produce a secure leak-proof coupling. ADVANTAGE - Pipe coupling with internal and external ring grooves provides secure coupling joint between spigot and socket.

Description

Die Erfindung betrifft eine Rohrschnellkupplung nach Patent 38 05 605. Gelegentlich kann es vorkommen, daß die Rohrschnellkupplung von dem Einlaufstutzen abrutscht.The invention relates to a quick pipe coupling according to patent 38 05 605. Occasionally it happens that the quick pipe coupling from the inlet connection slips.

Der Erfindung liegt die Aufgabe zugrunde, dieses Abrutschen mit Sicherheit zu verhindern.The invention has for its object this slipping to prevent with certainty.

Hierzu wird die Haftung der Buchse auf dem Einlaufrohr infolge der Wirkung des Druckmittels erfindungsgemäß gesteigert, in dem die aufeinandergepreßten Flächen - Innenzylinderfläche der Buchse und Außenfläche des Einlaufrohres - rauh gestaltet werden. Vorzugsweise erhält die Außenfläche des Einlaufrohres ringförmige Vertiefungen - Ringnuten - (Anspruch 1) und die Innenzylinderflächen der Buchse entsprechende ringförmige feine Wälle (Anspruch 2), die sich in die Nuten des Einlaufrohres einpressen lassen.This will the adhesion of the bushing to the inlet pipe due to the action of the pressure medium increased according to the invention in which the pressed together Surface - inner cylindrical surface of the bushing and outer surface of the Inlet pipe - be designed rough. The outer surface preferably receives of the inlet pipe annular depressions - ring grooves - (claim 1) and the inner cylindrical surfaces of the bush corresponding annular fine ridges (Claim 2), which can be pressed into the grooves of the inlet pipe.

Zudem kann die Festigkeit der Buchse in axialer Richtung vergrößert werden durch axialen Einbau einiger Stäbchen in den Umfang der Buchse (Anspruch 4).In addition, the strength of the bushing can be increased in the axial direction by axially installing some rods in the circumference of the socket (claim 4).

Man benötigt deswegen auch keine zusätzlichen Sicherungen, um die erfindungsgemäße Schnellkupplung festzuhalten, weil sie sich von dem Einlaufrohr nur wieder abziehen läßt, wenn der Druck im Druckraum durch Absperren des Druckmittels wegfällt; durch ihr Eigengewicht fällt sie nicht ab.There is therefore no need for any additional fuses in order to use the inventive one Hold quick connector because they are only from the inlet pipe can be withdrawn again when the pressure in the pressure chamber by shutting off the Pressure medium is eliminated; due to its own weight, it does not fall off.

Der Sitz der Buchse auf dem Einlaufrohr und damit der ganzen Schnellkupplung wird zunichte, wenn es sich bei dem Druckmedium um eine filmbildende Flüssigkeit handelt, deren Film auf dem glatten Einlaufrohr den Gleitwiderstand der Buchse herabsetzt. Diese Nachteile filmbildender Flüssigkeiten lassen sich beheben, wenn der Flüssigkeitsfilm von den Nuten unterbrochen und durch die Nuten nach außen in die Durchtrittsöffnung des Deckels abgeleitet wird; somit haftet die Buchse trocken auf dem Einlaufrohr (vgl. Anspruch 3 des Patentes 38 05 605).The seat of the socket on the inlet pipe and thus the entire quick coupling is nullified if the print medium is film-forming Liquid is acting, the film on the smooth inlet pipe, the sliding resistance the socket. These disadvantages of film-forming liquids can be eliminated if the liquid film interrupted by the grooves and out through the grooves into the passage opening the lid is derived; thus the socket adheres dry the inlet pipe (cf. claim 3 of patent 38 05 605).

In der Zeichnung werden die folgenden Bezugszeichen verwendet:The following reference symbols are used in the drawing:

Die Erfindung wird im folgenden näher erläutert. Es zeigtThe invention is explained in more detail below. It shows

Fig. 1a die Buchse (8) im Längsschnitt mit den feinen Ringwällen (57) und der Aussparung (59), Fig. 1a, the bushing (8) in longitudinal section with the fine annular ridges (57) and the recess (59),

Fig. 1b die in den Umfang der Buchse eingebauten Stäbchen (58) - "Korsettstangen", Figure 1b is built into the periphery of the sleeve rods (58) -. "Boning"

Fig. 2a das Einlaufrohr (2) mit Längsnuten (10) und feinen Ringnuten (56), jedoch ohne die verschiedenen Gewindeköpfe (3) zum Anschrauben an die verschiedenen Wasserhähne, in Ansicht, FIG. 2a, the inlet pipe (2) with longitudinal grooves (10) and fine annular grooves (56), but without the threaded different heads (3) for screwing to the various taps, in view

Fig. 2b dasselbe im Längsschnitt, Fig. 2b is the same longitudinal section,

Fig. 3 einen Gehäusedeckel (14) mit einer 3. Version der Abdichtung zwischen Deckel und Buchse durch einen Kragen (60), der in die Aussparung (59) der Buchse dichtend hineinpaßt. Fig. 3 shows a housing cover ( 14 ) with a 3rd version of the seal between the cover and the socket by a collar ( 60 ) which fits sealingly into the recess ( 59 ) of the socket.

Zusätzlich sind auf Außenzylinder des Einlaufrohres feine Ringnuten (56) eingearbeitet. Die Buchse ist hohlzylindrisch ausgebildet. In diesem Hohlzylinder sind nach innen vorspringende feine Ringwälle (57) angebracht, die in Zahl, Stärke und Anordnung den Ringnuten entsprechen. Durch das Druckmittel werden diese Ringwälle in die Ringnuten eingepreßt, wobei die Haftung der ganzen Buchse auf dem Einlaufrohr deutlich verstärkt wird.In addition, fine annular grooves ( 56 ) are machined onto the outer cylinder of the inlet pipe. The socket is hollow cylindrical. In this hollow cylinder are inwardly projecting fine ring walls ( 57 ) which correspond in number, strength and arrangement to the ring grooves. These ring walls are pressed into the ring grooves by the pressure medium, the adhesion of the entire bushing to the inlet pipe being significantly increased.

Eine 3. Version der Abdichtung und der Fixierung der Buchse am Gehäusedeckel zeigt Fig. 1 und 3:
Der Kragen (60) an der Unterseite des Deckels paßt schlüssig in die Aussparung (59) der Buchse; und durch das Druckmittel im Ringraum im Gehäuse wird die Schulter der Buchse dichtend gegen den Kragen gepreßt. A third version of the seal and the fixing of the socket on the housing cover is shown in FIGS. 1 and 3:
The collar ( 60 ) on the underside of the cover fits snugly into the recess ( 59 ) of the socket; and by the pressure medium in the annular space in the housing, the shoulder of the socket is pressed against the collar in a sealing manner.

Bezugszeichenliste:Reference symbol list:

 2 = Einlaufrohr
 7 = Schulter (des Einlaufrohres)
 8 = Buchse
 9 = Abstützung (der Buchse)
10 = Druckmittelabflußnuten
14 = Gehäusedeckel
56 = feine Ringnuten
57 = feine Ringwälle
58 = Stäbchen ("Korsettstangen")
59 = Aussparung
60 = Kragen 2 = inlet pipe
7 = shoulder (of the inlet pipe)
8 = socket
9 = support (of the socket)
10 = pressure medium drainage grooves
14 = housing cover
56 = fine ring grooves
57 = fine ring walls
58 = chopsticks ("corset bars")
59 = recess
60 = collar

Claims (5)

1. Rohrschnellkupplung nach Patent 38 05 605, dadurch gekennzeichnet, daß das Einlaufrohr auf seinem Umfang im Bereich der Druckmittelabflußnuten (10) mehrere feine Ringnuten (56) aufweist.1. Quick pipe coupling according to Patent 38 05 605, characterized in that the inlet pipe has a plurality of fine annular grooves ( 56 ) on its circumference in the region of the pressure medium discharge grooves ( 10 ). 2. Rohrschnellkupplung nach Anspruch 1, dadurch gekennzeichnet, daß der Innenzylinderabschnitt der Buchse (8) mit dem größeren Durchmesser mehrere nach innen vorspringende feine Ringwälle (57) aufweist, die den Ringnuten (56) auf dem Einlaufrohr (2) in Zahl, Stärke und Anordnung entsprechen.2. Quick pipe coupling according to claim 1, characterized in that the inner cylindrical portion of the bushing ( 8 ) with the larger diameter has a plurality of inwardly projecting fine ring walls ( 57 ) which the ring grooves ( 56 ) on the inlet pipe ( 2 ) in number, strength and Arrangement. 3. Rohrschnellkupplung nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, daß die Buchse in der deckelseitigen Stirnfläche eine zentrische Aussparung (59) hat (Vergrößerung des oberen Teiles des Hohlzylinders), und daß der Gehäusedeckel (14) auf seiner Unterseite einen schmalen, die Durchtrittsöffnung umschließenden Kragen (60) aufweist, welcher schließend in die Aussparung hineinpaßt.3. Quick pipe coupling according to one of claims 1 to 2, characterized in that the bush in the cover-side end face has a central recess ( 59 ) (enlargement of the upper part of the hollow cylinder), and that the housing cover ( 14 ) on its underside a narrow, the collar ( 60 ) enclosing the passage opening, which fits snugly into the recess. 4. Rohrschnellkupplung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß in das Fleisch der Buchse, parallel zu ihrer Längsachse, mehrere feste Stäbchen (58) von der Länge der Buchse als "Korsettstangen" eingearbeitet sind.4. Quick pipe coupling according to one of claims 1 to 3, characterized in that in the meat of the socket, parallel to its longitudinal axis, a plurality of fixed rods ( 58 ) of the length of the socket are incorporated as "corset rods". 5. Rohrschnellkupplung, nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß in dem Auslaufstutzen (27) eine Einschraubmöglichkeit für einen Strahlejektor (34-37) vorgesehen ist.5. Quick pipe coupling, according to one of claims 1 to 4, characterized in that in the outlet nozzle ( 27 ) a screwing option for a jet ejector ( 34-37 ) is provided.
DE19893915834 1988-02-24 1989-05-16 End connector for pipes - has pipe coupling spigot with axial fluid drain grooves Expired - Fee Related DE3915834C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19893915834 DE3915834C1 (en) 1988-02-24 1989-05-16 End connector for pipes - has pipe coupling spigot with axial fluid drain grooves

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883805605 DE3805605A1 (en) 1988-02-24 1988-02-24 Quick-acting pipe coupling
DE19893915834 DE3915834C1 (en) 1988-02-24 1989-05-16 End connector for pipes - has pipe coupling spigot with axial fluid drain grooves

Publications (1)

Publication Number Publication Date
DE3915834C1 true DE3915834C1 (en) 1990-11-08

Family

ID=25865114

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19893915834 Expired - Fee Related DE3915834C1 (en) 1988-02-24 1989-05-16 End connector for pipes - has pipe coupling spigot with axial fluid drain grooves

Country Status (1)

Country Link
DE (1) DE3915834C1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT183286B (en) * 1953-01-03 1955-09-26 Brevet A G Plug-in coupling for hoses, lines, pipes, connecting nipples or the like.
DE2426790A1 (en) * 1974-05-31 1975-12-11 Schmidt Gerhard R Tap connector for hose pipe - has thick walled elastomer adaptor to fit various size tap nozzles
EP0008000A1 (en) * 1978-08-11 1980-02-20 Sigmund Hirmer High-pressure quick-acting coupling for the connection of fire-hoses or the like to water taps of high pressure water conduits
DE2838074C2 (en) * 1978-08-31 1986-12-11 Sigmund 8201 Riedering Hirmer High pressure quick connector for connecting fire hoses or the like. on taps of pressurized water pipes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT183286B (en) * 1953-01-03 1955-09-26 Brevet A G Plug-in coupling for hoses, lines, pipes, connecting nipples or the like.
DE2426790A1 (en) * 1974-05-31 1975-12-11 Schmidt Gerhard R Tap connector for hose pipe - has thick walled elastomer adaptor to fit various size tap nozzles
EP0008000A1 (en) * 1978-08-11 1980-02-20 Sigmund Hirmer High-pressure quick-acting coupling for the connection of fire-hoses or the like to water taps of high pressure water conduits
DE2838074C2 (en) * 1978-08-31 1986-12-11 Sigmund 8201 Riedering Hirmer High pressure quick connector for connecting fire hoses or the like. on taps of pressurized water pipes

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