DE2006115A1 - Detachable line coupling - Google Patents

Description

.Sebaatiani . 7770 Überlingen

Detachable line coupling

The present invention relates to a detachable Line coupling, in particular a hose coupling, consisting of two connection pieces that are to be connected to two Line ends can be fastened, as well as means to hold the two connection pieces together in the coupled state.

A field of application of such line couplings are at « for example hose lines in production rooms, on components etc. The coupling parts are mostly in the power-of-use condition exposed to disruptive pollution, which affects the sealing effect impaired. , ■.

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The purpose of the present invention is a line coupling the above ixt to create that is simple in construction and ensures an excellent sealing effect. Except- . the self-cleaning of the .Sealing surfaces when coupling together occur.

This is achieved according to the invention in that a sealing element made of elastic material is provided in the enlarged diameter end section of the one connection piece W , a part of which rests against a shoulder and a "closed section of the" inner wall of the named end section while Another, lip-shaped part extends towards the end of the connection piece and forms between itself and the remaining section of the end part a groove intended to receive the end part of the other connection piece, and that the inner wall of the end part of this other connection piece is cut out in a ring shape to accommodate the sealing lip is. m The sealing lip on the one hand and the one to accommodate it

certain annular recess on the other hand open to the The end of the corresponding connection piece is conical.

An embodiment of the invention is explained below with reference to the drawing, in which *

1 shows a longitudinal section through two connection pieces, in the uncoupled state, a hose coupling according to the invention,

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Pig. 2 shows a longitudinal section through the same parts as in FIG. 1 but in the coupled state, and ".

3 is a top view of the figure shown in FIG Clutch shows.

As can be seen from the drawing, there is the solvable one Hose coupling made of two connection pieces 1 and 2, whose on the lussenwand with tooth-shaped elevations 3, 4 provided patties two hose ends to be detachably connected to each other (not shown) attachable sina. . - '

The connecting piece 1 has an enlarged diameter End portion 1 ', in which a sealing element 5 sealing against the shoulder 6 and an adjoining section of the "Inner wall 7 is arranged adjacent to it"

^{The sealing element 5} made of Guüuni has a lip-shaped extension 5 * which extends to the end of the connection piece 1.

In the non-coupled state (Fig. 1), an annular groove 8 serving to ^{accommodate the end section 2 1 of} the other connection piece 2 is formed between the sealing lip 5 'and the exposed inner wall 7 of the band part 1'.

The inner wall 9 of the lower part 2 'of the connecting piece is cut out in the shape of a ring to accommodate the sealing lip 5 '. This recess to opens slightly conically to the outside, i.e. towards the end of connecting piece 2 «The same thing also opens up

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the sealing ^{lip 5 'towards the} connection piece 1 is conical in appearance.

As can be seen from FIG. 2, ^{the sealing lip 5 1} lies absolutely cleanly against the sealing surface, ie the inner wall 9 of the connection 2. When coupling together, the free end faces of the sealing lip 5 'on the one hand and the end portion 2' of the connecting piece 2 on the other hand clean the sealing surfaces of impurities such as grains of sand and dust. In the coupled state, the sealing lip 5 'is also more or less compressed.

Thanks to the part of the sealing element 5 lying on the inside, the sealing lip 5 ¹ becomes with "" increasing pressure in the hose resp. the line is increasingly pressed against aie sealing surface 9 and thus increases the sealing effect.

The end 13 of the end section 2 'is serrated in a trapezoidal shape, to avoid any contamination that may have got into the annular groove 8 in the spaces between the teeth due to the rotary movement of the bayonetver = To collect the results and to take them out when loosening the clutch It is hereby achieved that the coupling parts are Clean the process automatically.

Fig. 2 clearly illustrates how the only möfcli = chen Druokverluetechlitz 11 a very long on both sides Sealing surface goes out. The sealing effect is thus largely voil « loaimen. The mated coupling also gives an absolute smooth, unchecked passage.

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Pig. 3 shows how the two connecting pieces 1,2 in ge TipItem condition held together with bayonet lock 12 are.

But you could also use the » union nut, thread, etc. are held together.

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Claims (6)

Claims 1.) Detachable line coupling, in particular hose coupling impressing with two connecting pieces that are connected to two with each other connecting line ends are attached, as well as means to hold the two connection pieces together in the coupled state, characterized by the fact that in the end widened in diameter t part of one connection piece is a sealing element made of elastic 3chem material is provided, part of which is attached to a shoulder and an adjoining section of the wall the end portion mentioned, while another, "lip" -shaped part extends towards the end of the connection piece and thereby between itself and the remaining part of the end part one intended to receive the end part of the other connection piece Ring groove forms, and that the inner wall of the Sndpartie this other connection piece to accommodate the sealing lip ring » is shaped like a recess. " 2. Detachable line coupling according to Anspruoh 1 daduroh characterized, that the sealing lip moves when the connection is not coupled » pieces towards the end of the connection piece slightly conical outwards opens. 3 »Line coupling according to claim 1 and 2 characterized by this = * draws that the wall of the to accommodate the sealing lip certain annular recess opens towards the outside konisoh. 009835 / U48 4.! Line coupling naoh claim 3 characterized in that that I see the end of metal. Üiohtungteiles trapezoidal is interlocked * 5 ·· Line coupling according to Anjrpruöh. · 1 characterized by the fact that in order to hold the connection pieces together, the latter together form a bayonet lock «- _ ₉ 6. Line coupling naoh claim 1, characterized in that that to hold the Ansohlusteile together on the in diameter smaller Ansohlusstück a union nut is arranged, the can be screwed onto an external thread of the other Anfohlusstücka is. -. . 7 Line coupling according to claim 1 characterized that to hold together aer Ansohlusatüoke the larger in diameter? Ansohlueetuck an internal thread and the other connection piece has a female thread. , M. Sebastiani 0 098 35 / U48 fr Blank page