EP0545217A1 - Aeration device for receptacles, for example heating radiators - Google Patents

Abstract

An aeration device (1) for receptacles, e.g. heating radiators (2), which are filled or are to be filled with a liquid, has a valve body (5) which can be screwed into a threaded bore (4) in the wall (3) of the receptacle and which has an air outlet (7) to the outside provided e.g. with an aerating screw (6), and, lying higher than this outlet, an air inlet opening (8) on the inside of the receptacle or heating radiator (2). This air inlet opening (8) is in this case provided on an aerating part (9) which is rotatable relative to the valve body (5). The rotatable aerating part (9) is intended to allow the adjustment of the air inlet opening (8) to as high a position as possible in its operating position. In order that this can be adjusted already before the mounting of the aerating device (1) but this adjustment is not changed again during mounting and remains independent of the position in which the valve body (5) is fixed after screwing in, the rotatable aerating part (9) has at least one holding element, which holds it positionally stably in the direction of rotation during screwing-in of the valve body (5), e.g. in the form of friction surfaces which interact with the threaded bore (4) or an outlet (19), and/or in the form of a counterweight (30). The air inlet opening (8) is consequently, as a result of the rotatability between valve body (5) and aerating part (9) and the holding force which acts on the aerating part (9) during the screwing-in of the valve body (5), held firmly in the desired position adjusted previously. <IMAGE>

Description

The invention relates to a venting device for containers to be filled or filled with a liquid, for. B. radiators, heating systems, pipe systems or the like, with a screwed into a threaded hole in the wall of the container valve body, which has a vent screw provided air outlet to the outside and a higher than this air inlet opening inside the container.

Such a ventilation device is known from DE-PS 28 28 833. The air inlet opening is provided on a flexible feed line designed as a piece of tubing, at the free end of which a buoyancy element is attached in order to bring the inlet opening within the container to be vented to the highest possible level of the liquid by the buoyancy. However, there is a risk that a flexible line piece made of a plastic will become brittle over the years and eventually become unusable. In addition, it is necessary to provide a float that has such a high buoyancy that this flexible line piece is deflected sufficiently far upward against its elasticity.

In the course of the further development of technology, the solution according to DE-PS 31 14 609 was therefore created, in which several air inlet openings are arranged at different heights, so that after screwing in one of these ventilation openings takes up the highest possible position or a high entry level without it special adjustment measures or a tube to be bent with a float is required. This solution has also proven itself, but leads to the fact that during the venting process, liquid is inevitably discharged to the outside via the respectively lower air inlet openings.

It is therefore the task of creating a venting device of the type mentioned at the outset, in which neither a float is required nor a relatively large amount of liquid inevitably escapes when venting. Nevertheless, when the valve is screwed in for the first time, the air inlet opening should be as high as possible and still have a tight fit and require no additional seals.

To solve this problem, the above-mentioned ventilation device is characterized in that the air inlet opening is provided on a ventilation part which is rotatable relative to the valve body and that the rotatable ventilation part has at least one holding element which keeps the position of the valve body stable in the direction of rotation relative to the latter when the valve body is screwed in, which holds the air inlet opening in its previously set or assumed position during the screwing-in movement of the valve body.

The air inlet opening can thus be brought into a desired position before assembly and before screwing in the valve body are then retained due to the rotatability between the valve body and the venting part during screwing in, because the holding element prevents the rotation of the venting part despite the rotation of the valve body. The valve body can perform the rotating and screwing movement, and in the process can be rotated relative to the ventilation part, which maintains its intended position and in particular the position of the air inlet opening. This ensures that the air inlet opening receives the desired position with the highest possible level in the position of use. Expediently, when the valve body is screwed in, the ventilation part is exposed to a positionally stable resistance to the rotation of the valve body, which resistance is greater than the driving force exerted by the valve body on the friction of its rotary connection. This holding force exerted on the ventilation part which can be rotated relative to the valve body can be generated in different ways.

It is particularly expedient if the rotatable ventilation part has one or more projections, surfaces and / or edges or similar contact or friction surfaces as holding element which, when the valve body is inserted into the threaded bore, come into contact with at least one counter surface which at least partially surrounds or acts on it. Counter edge or counter contact point and can be positively and / or positively or frictionally or clampingly fixed in the direction of rotation by this, and that the protrusions or similar holding elements are / are displaceable in the axial direction relative to the counter surface (s).

In this embodiment, it is thus ensured that the venting part is prevented from engaging with the valve body by frictional forces during screwing in and the associated axial movement of the entire venting device to turn with. This takes advantage of the fact that the threaded bore has a certain axial extent along which the venting part to be placed in the interior of the container is first to be guided. If this is subjected to a corresponding frictional force, it cannot rotate when the valve body is screwed in, while on the other hand the valve body can easily carry out the rotary movement for screwing in due to the relative rotatability between it and the ventilation part.

Another or additional solution can consist in that the protrusion or the like holding elements on the rotatable venting part has a stop which is effective in the direction of rotation for interacting with a counter-stop, in particular an axial groove, flattening or the like in the threaded bore or the region adjacent to it in the axial direction Has. Instead of a frictional mounting of the venting part during the screwing-in process, this arrangement with a stop and counter-stop even results in a positive fixing, which nevertheless does not impair the axial movement into the threaded bore of the container, but rather facilitates it. However, it can also be combined in form and friction.

An expedient embodiment of the invention can provide that a tube with the air inlet opening is formed on the rotatable venting part. This is known per se and has the corresponding advantages during assembly and above all with regard to the greatest possible level of the air inlet opening. In addition, this results in the possibility that this tube serves as a stop for cooperation with the counter-stop, in particular at least partially engages in the axial groove, flattening or the like of the threaded bore or its neighboring area. The vent tube thus receives an additional one during the Effective assembly function by applying the resistance to the venting part via this tube, which holds it in the desired position while the valve body is screwed into its thread.

Another or possibly also additional possibility of exposing the ventilation part to a resistance or a counterforce which prevents it from rotating when the valve body is screwed in can consist in that an overweight arranged in particular opposite the air inlet opening is provided as a holding element on the rotatable ventilation part, which holds and fixes the rotatable ventilation part and the air inlet opening in their position of use by gravity. Such an eccentric weight, as a holding element, ensures that the venting part is held on its rotary connection with the valve body even when certain frictional forces act so that the air inlet opening maintains the desired high level. At the same time, the user does not need to take special care when inserting the ventilation part in order to position it really correctly and precisely, because the desired positioning is due to the weight and the relative rotatability of the ventilation part relative to the valve body and thus automatically adjusts itself correctly.

As mentioned, the different solutions could also be combined, for example in that an excess weight is arranged radially opposite the rotatable ventilation part of the air inlet opening and projections and / or counter surfaces for frictional engagement on the inside of the threaded bore or a counter surface continuing the thread area and / or a stop, a groove or the like are provided for a projection arranged on the ventilation part.

Refinements and developments of the invention and its various solutions are the subject of claims 8 to 29.

The claims 8 to 10 relate to the design of the pivot bearing, with which the venting part is fastened to the valve body in a relatively rotatable manner, while claims 10 contain a configuration with the aid of a swelling disk, which serves as an additional seal and, above all, also for eliminating axial play, because it swings into the assembly position when it comes into contact with the liquid inside the container and then more or less compensates or cancels out the previously easily rotatable connection and the play that is present. This then simultaneously leads to a determination of the previously adjusted favorable position of the ventilation opening.

Claims 12 and 13 relate to expedient designs of the holding elements in the form of spring tongues which allow good axial movement during assembly, but prevent the rotary movement of the ventilation part despite the screwing-in movement of the valve body.

Claim 14 contains a modified option with the aid of recesses, the outer boundary of which is elastically flexible in order to generate the required friction pressure but not to prevent the axial movement.

Claim 15 relates to an embodiment in which a tube containing the ventilation opening itself is used to generate the frictional force, that is to say as a holding element, while claim 16 relates to the arrangement already mentioned with an axial groove, which in turn can interact with a ventilation tube as a stop .

The measure of claim 17 acts in an inclined tube, which serves as a stop to prevent the ventilation part from rotating, so that the ventilation opening remains accessible to the air to be exhausted even while sliding along in the groove or while remaining in this groove in the end position.

Claim 18 relates to an expedient arrangement in which the flexible tube can exert the holding force on the ventilation part during assembly, but can then stand up in the end position so that the ventilation opening comes to lie higher than the highest area of the screw-in thread.

The tube having the vent opening can be plugged on and / or bendable and / or cut to length so that it can be adapted so that it can be adapted to different containers and bores or continuations of the threaded bore. The tube can be arranged, for example, so that it itself forms the holding element.

Claim 20 relates to a further possibility to form the holding part designed as a disk body and to make it more adaptable with regard to its flexibility and suppleness.

Claim 21 contains a combination of features that leads to the fact that the friction forces occurring during assembly on the holding element increase automatically and thus exclude an unwanted twisting of the ventilation part even better.

Claims 22 to 26 relate to features with regard to a holding element which can be attached to the ventilation part as a separate part, so that the frictional forces for holding the ventilation part can be improved without the production outlay on this venting part to enlarge itself. The venting part can rather be made simpler because the holding element does not have to be integrally connected to it. Accordingly, a favorable material can also be selected for the ventilation part, while another material can be used for the annular holding element in order to achieve a correspondingly good holding force. At the same time, a seal can also be achieved on the circumference of the ventilation part, so that liquid from a heater or the like is kept away from the joint between the valve body and the ventilation body.

Claim 27 relates to a simplification of the venting device, because it is provided that the venting part and the valve body are not connected to each other, which of course makes them even more rotatable relative to one another. A corresponding rotatable connection can thus be saved. During assembly, the venting part can first be inserted a little bit into the threaded hole or the like, after which the valve body is then screwed in and the venting part is displaced into its end position by its axial movement when screwing in, when the valve body is in contact with the valve body the venting part.

Claims 28 and 29 relate to possibilities of sealing between the valve body and the venting part, in particular for the configuration in which the valve body and the venting part are separate parts which are not connected by a rotary coupling. A one-piece sealing lip could also be provided in the other exemplary embodiments, as could a coupling cone.

Especially when combining one or more of the features and measures described above, there is a ventilation device, in which the vent opening can be given the highest possible position without subsequent influence from outside, the user being able to set this position during insertion and this is then maintained despite the rotational movement when the valve body is screwed in.

Fig. 1

eine teilweise aufgeschnittene perspektivische Ansicht einer Entlüftungsvorrichtung mit einem Ventilkörper und einem Entlüftungsteil, wobei im Ventilkörper eine Entlüftungsschraube in ihrer Schließstellung angeordnet ist,

Fig. 2

eine der Figur 1 entsprechende Darstellung einer abgewandelten Entlüftungsvorrichtung ohne Entlüftungsschraube,

Fig 3 - Fig 5

eine teilweise im Längsschnitt gehaltende Seitenansicht einer Entlüftungsvorrichtung, bei welcher an einem Entlüftungsteil ein die Entlüftungsöffnung im Inneren eines Behältnisses aufweisendes biegsames Röhrchen vorgesehen ist, wobei beim Einführen des Entlüftungsteiles und des Ventilkörpers am Umfang des Entlüftungsteiles angebrachte Erhöhungen an die Innenseite des Innengewindes der Gewindebohrung angedrückt werden und dadurch der relativ zu dem Ventilkörper drehbar gelagerte Entlüftungsteil trotz der Einschraub-Bewegung des Ventilkörpers seine Position unverändert beibehält und das Entlüftungsröhrchen und dessen Entlüftungsöffnung in Montagestellung gemäß Fig.5 die vorgewählte höchstmögliche Position haben,

Fig. 6

eine Stirnansicht und

Fig. 7

eine teilweise im Längsschnitt gehaltene Ansicht einer in Gebrauchsstellung befindlichen Entlüftungsvorrichtung, bei welcher ein abgewinkeltes Röhrchen des gegenüber dem Ventilkörper drehbaren Entlüftungsteiles während der axialen Bewegung beim Einschrauben und auch in der in Fig. 7 dargestellten Gebrauchsstellung entlang einer axialen Nut geführt und dadurch am Mitdrehen gehindert,

Fig. 8

eine Stirnansicht und

Fig. 9

eine teilweise im Längsschnitt gehaltene Seitenansicht einer Entlüftungsvorrichtung vor ihrem Einsetzen in die Gewindebohrung des zu entlüftenden Behältnisses, wobei die Entlüftungsöffnung am Ende eines in den Entlüftungsteil eingearbeitenten Kanales angeordnet ist und der Entlüftungsteil im Bereich der Entlüftungsöffnung seines Kanales über das Gewinde des Ventilkörpers hinausragt und die Gewindebohrung eine diesen Überstand berücksichtigende Axialnut als Anschlag gegen ein Mitdrehen des Entlüftungsteiles beim Einschrauben des Ventilkörpers hat,

Fig. 10

eine Stirnansicht und

Fig. 11

eine teilweise im Längsschnitt gehaltene Ansichts einer abgewandelten Ausführungsform einer Entlüftungsvorrichtung, bei welcher im Bereich des in den Entlüftungsteil eingearbeiteten Kanal ein in axialer Richtung vorstehender rippenartiger Vorsprung vorgesehen ist, der in axialer Richtung in eine Axialnut in Fortsetzung des Innengewindes der Gewindebohrung des Behältnisses eingreift, wenn der Gewindeanfang des Ventilkörpers auf den Gewindeanfang der Gewindebohrung aufgesetzt wird,

Fig. 12

eine Stirnansicht und

Fig. 13

eine teilweise im Schnitt gehaltene Seitenansicht einer Entlüftungsvorrichtung mit einem die Entlüftungsöffnung aufweisenden, radial gegenüber seiner Drehlagerung abstehenden Röhrchen, welches bis in den Gewindebereich ragt und bei der Montage als eine Reibkraft erzeugendes Halteelement dient,

Fig. 14

eine Stirnansicht und

Fig. 15

eine teilweise im Schnitt gehaltene Seitenansicht einer der Fig. 12 und 13 entsprechenden Ausführungsform, bei welcher zusätzlich zu dem Röhrchen zwei weitere radial abstehenden Halteelemente vorgesehen sind und der dadurch gebildete Entlüftungsteil an seiner Drehlagerung eine Quellscheibe hat,

Fig. 16

eine Stirnansicht und

Fig. 17

eine teilweise im Schnitt gehaltene Seitenansicht einer etwa Fig. 14 und 15 entsprechenden Ausführungsform, wobei die 3 radial unter gleichem Winkel abstehenden Teile des Entlüftungsteiles durch Ringsegmente gegeneinander abgestützt sind,

Fig. 18

eine Stirnansicht und

Fig. 19

eine teilweise im Längsschnitt gehaltene Seitenansicht einer Entlüftungsvorrichtung, bei welcher der Entlüftungsteil einen umlaufenden Ring mit radial nach außen überstehenden Noppen zur Erzeugung der Reibkraft an dem Entlüftungsteil während der Montage, wobei das Entlüftungsröhrchen schräg aus diesem die Noppen aufweisenden Ring des Entlüftungsteiles vorsteht,

Fig. 20

eine Stirnansicht und

Fig. 21

eine Seitenansicht einer Entlüftungsvorrichtung, bei welche das Entlüftungsteil 3 radiale Rippen und einen außen umlaufenden Ring mit überstehenden Noppen zur Erzeugung der Reibkraft hat, wobei die Entlüftungsöffnung an einem in eine der Rippen eingearbeiteten Kanal vorgesehen ist,

Fig. 22

eine Stirnansicht und

Fig. 23

eine teilweise im Längsschnitt gehaltene Seitenansicht einer Entlüftungsöffnung, bei welcher das Entlüftungsteil neben einem etwa von seiner Mitte ausgehenden und dann abgewinkelten Röhrchen im Gewindebereich federnde Zungen hat, deren Enden durch radial nach außen vorstehende Vorsprünge bei der Montage in Reibkontakt mit dem Gegengewinde gelangen,

Fig. 24

eine Stirnansicht und

Fig. 25

eine teilweise im Schnitt gehaltene Seitenansicht einer Ausführungsform, bei welcher das Entlüftungsteil an seinem Außenumfang im Bereich von Aussparungen vorstehende Vorsprünge hat und ein biegsames Röhrchen einstückig an dem drehbaren Entlüftungsteil angeformt ist,

Fig. 26

eine Stirnansicht und

Fig. 27

eine teilweise im Schnitt gehaltene Seitenansicht einer gegenüber Fig. 24 und 25 abgewandelten Ausführunsform, bei welcher die zur Erzeugung der Reibkraft dienenden Vorsprünge an einem umlaufenden Ring des Entlüftungsteiles im Bereich von Aussparungen dieses Ringes gegenüber einer Abschlußscheibe angeordnet sind und das Entlüftungsröhrchen einstückig mit dem Entlüftungsteil verbunden ist,

Fig. 28

eine Stirnansicht und

Fig. 29

eine teilweise im Schnitt gehaltene Seitenansicht, bei welcher das Entlüftungsteil an seiner dem Entlüftungsröhrchen radial gegenüberliegenden Seite ein Übergewicht hat, welches das Entlüftungsteil auch bei Verdrehung des Ventilkörpers immer in seine Gebrauchsstellung dreht,

Fig. 30

eine Stirnansicht und

Fig. 31

eine teilweise gemäß der Linie A-A in Fig. 30 im Längsschnitt gehaltene Seitenansicht einer Entlüftungsvorrichtung, bei welcher ein Entlüftungsröhrchen und ein diesem radial gegenüberliegendes Gegengewicht vorgesehen sind, wobei das Entlüftungsteil aus Kunststoff besteht und das Gegengewicht durch Füllung von Aussparungen oder Bohrungen gebildet ist,

Fig.32

eine Stirnansicht und

Fig.33

eine teilweise im Längsschnitt gehaltene Seitenansicht einer Entlüftungsvorrichtung, bei welcher ein ablängbares Röhrchen auf einen schrägen Stutzen des Entlüftungsteiles aufgesteckt ist,

Fig.34

eine Stirnansicht und

Fig.35

eine teilweise im Längsschnitt gehaltene Seitenansicht einer Entlüftungsvorrichtung, bei welcher ein abbiegbares Entlüftungsröhrchen in einer Bohrung des Entlüftungsteiles befestigt ist, welche etwa in Flucht mit dem Entlüftungskanal des Ventilkörpers angeordnet ist,

Fig.36

eine Stirnansicht und

Fig.37

eine teilweise im Längsschnitt gehaltene Seitenansicht einer Entlüftungsvorrichtung, bei welcher an dem Entlüftungsteil Federelemente angeordnet sind, die mit ihren federnden Enden an einer sich konisch nach außen erweiternden Ringfläche anliegen und bei einem stärkeren Andrücken in ihrem Durchmesser radial nach außen vergrößert werden, so daß ihre außenliegende Reibfläche stärker an das Gegenstück anpreßbar ist und die Haltekraft erhöht wird,

Fig.38

eine teilweise aufgeschnittene perspektivische Ansicht einer Entlüftungsvorrichtung ähnlich der der Fig.2, wobei ein als Reibkante bzw. Reibfläche dienender umlaufender Steg durch Unterbrechungen in biegsame Segmente unterteilt ist,

Fig.39

eine teilweise aufgeschnittene perspektivische Ansicht einer Entlüftungsvorrichtung ähnlich der der Fig.1, bei welcher zusätzlich zu einer Reibfläche an dem drehbaren Entlüftungsteil Gegengewichte eingearbeitet sind,

Fig.40 bis 42

ein Ausführungsbeispiel, bei welchem das Entlüftungsteil gegenüber dem Ventilkörper ein loses, separates Teil ist, welches in montiertem Zustand - Fig.41 - dichten Kontakt mit der Stirnseite des Ventilkörpers hat, wobei die Abdichtung durch einen konischen Sitz am Übergang des Luftweges von dem Entlüftungsteil zum Ventilkörper (Fig.40), ein um den Übergangsbereich umlaufender Dichtring (Fig.41) oder eine an einem der beiden Teile einstückig angeformte Dichtlippe (Fig.42) sein kann, sowie

Fig.43

eine Ausführungsform, bei welcher - ebenso wie bei der Anordnung nach Fig.40 und 41 - das Halteelement an dem Entlüftungsteil ein separater umlaufender Dichtring ist, der in radialer Richtung über eine Nut oder dergleichen Halterung an dem Entlüftungsteil übersteht und gemäß Fig.40 und 41 das Entlüftungsteil gegen Mitdrehen beim Einschrauben des Ventilkörpers festhält.

Exemplary embodiments of the invention are described in more detail below with reference to the drawing, in which case configurations of another can also be realized under one exemplary embodiment, even if this is not shown in the drawing. In detail shows:

Fig. 1

3 shows a partially cut-away perspective view of a ventilation device with a valve body and a ventilation part, a ventilation screw being arranged in its closed position in the valve body,

Fig. 2

1 shows a representation of a modified venting device without a vent screw,

Fig 3 - Fig 5

a partially in longitudinal section side view of a ventilation device, in which a flexible tube having the ventilation opening in the interior of a container is provided on a ventilation part, wherein when inserting the ventilation part and the valve body on the periphery of the ventilation part, raised portions are pressed against the inside of the internal thread of the threaded bore and thereby the venting part rotatably mounted relative to the valve body retains its position unchanged despite the screwing-in movement of the valve body and the venting tube and the ventilation opening in the assembly position according to FIG. 5 has the preselected highest possible position,

Fig. 6

a front view and

Fig. 7

7 shows a partially longitudinal section of a ventilation device in the use position, in which an angled tube of the ventilation part, which is rotatable relative to the valve body, is guided along an axial groove during the axial movement when screwing in and also in the position of use shown in FIG. 7 and thereby prevented from rotating,

Fig. 8

a front view and

Fig. 9

a partially in longitudinal section side view of a venting device before it is inserted into the threaded hole of the container to be vented, the vent opening being arranged at the end of a channel incorporated in the vent part and the venting part projecting beyond the thread of the valve body in the region of the vent opening of its channel and the threaded hole has an axial groove that takes this projection into account as a stop against the ventilation part rotating when the valve body is screwed in,

Fig. 10

a front view and

Fig. 11

a view, partly in longitudinal section, of a modified embodiment of a ventilation device, in which a rib-like projection protruding in the axial direction is provided in the region of the channel incorporated in the ventilation part which engages in the axial direction in an axial groove in continuation of the internal thread of the threaded bore of the container when the start of the thread of the valve body is placed on the start of the thread of the threaded bore,

Fig. 12

a front view and

Fig. 13

FIG. 2 shows a side view, partly in section, of a ventilation device with a tube which has the ventilation opening and projects radially with respect to its rotary bearing, which protrudes into the threaded region and serves as a holding element generating a friction force during assembly,

Fig. 14

a front view and

Fig. 15

12 and 13 corresponding embodiment, in which, in addition to the tube, two further radially projecting holding elements are provided and the ventilation part formed thereby has a swelling disk on its rotary bearing,

Fig. 16

a front view and

Fig. 17

14 and 15, an embodiment corresponding approximately to FIGS. 14 and 15, the 3 parts of the ventilation part protruding radially at the same angle being supported against one another by ring segments,

Fig. 18

a front view and

Fig. 19

a side view of a ventilation device, partially in longitudinal section, in which the ventilation part has a circumferential ring with radially outwardly projecting knobs for generating the frictional force on the ventilation part during assembly, the ventilation tube protruding obliquely from this ring of the ventilation part having the knobs,

Fig. 20

a front view and

Fig. 21

2 shows a side view of a ventilation device, in which the ventilation part has 3 radial ribs and an outer circumferential ring with protruding knobs for generating the frictional force, the ventilation opening being provided on a channel worked into one of the ribs,

Fig. 22

a front view and

Fig. 23

FIG. 2 shows a side view of a ventilation opening, partially in longitudinal section, in which the ventilation part has resilient tongues in the threaded region next to a tube that starts approximately from its center and is then angled, the ends of which come into frictional contact with the counterthread during assembly during projecting projections,

Fig. 24

a front view and

Fig. 25

a partially sectioned side view of an embodiment in which the vent member has protruding projections on its outer periphery in the region of recesses and a flexible tube is integrally formed on the rotatable ventilation part,

Fig. 26

a front view and

Fig. 27

a partially sectioned side view of a modified compared to FIGS. 24 and 25 embodiment, in which the projections used to generate the frictional force are arranged on a circumferential ring of the ventilation part in the area of recesses of this ring opposite an end plate and the ventilation tube is integrally connected to the ventilation part is

Fig. 28

a front view and

Fig. 29

FIG. 2 shows a side view, partly in section, in which the venting part has an overweight on its side radially opposite the venting tube, which always turns the venting part into its use position even when the valve body is rotated,

Fig. 30

a front view and

Fig. 31

30 shows a side view, partly in longitudinal section along the line AA in FIG. 30, of a ventilation device, in which a ventilation tube and a counterweight radially opposite it are provided, the ventilation part being made of plastic and the counterweight being formed by filling recesses or bores,

Fig. 32

a front view and

Fig. 33

FIG. 2 shows a side view, partly in longitudinal section, of a ventilation device, in which a tube which can be cut to length is attached to an oblique connection piece of the ventilation part,

Fig. 34

a front view and

Fig. 35

FIG. 2 shows a side view, partly in longitudinal section, of a venting device, in which a bendable venting tube is fastened in a bore in the venting part, which is arranged approximately in alignment with the venting channel of the valve body,

Fig. 36

a front view and

Fig. 37

a partially in longitudinal section side view of a ventilation device, in which on the ventilation part spring elements are arranged, which rest with their resilient ends on a conically widening ring surface and are enlarged radially outward with a stronger pressure, so that their outer The friction surface can be pressed more strongly against the counterpart and the holding force is increased,

Fig. 38

3 shows a partially cut-away perspective view of a ventilation device similar to that of FIG. 2, a circumferential web serving as a friction edge or friction surface being divided into flexible segments by interruptions,

Fig. 39

a partially cutaway perspective view of a ventilation device similar to that of Figure 1, in which in addition to a friction surface counterweights are incorporated into the rotatable venting part,

Fig. 40 to 42

an embodiment in which the ventilation part relative to the valve body is a loose, separate part, which in the assembled state - Fig. 41 - has tight contact with the end face of the valve body, the seal by a conical seat at the transition of the airway from the ventilation part to Valve body (Fig.40), a sealing ring running around the transition area (Fig.41) or a sealing lip integrally molded on one of the two parts (Fig.42), and

Fig. 43

an embodiment in which - as in the arrangement according to FIGS. 40 and 41 - the holding element on the ventilation part is a separate circumferential sealing ring which projects in the radial direction over a groove or similar holder on the ventilation part and according to FIGS. 40 and 41 holds the ventilation part against turning when screwing in the valve body.

In the following description of the individual exemplary embodiments, parts that are the same or functionally comparable are named and labeled with the same reference numbers, even if they are designed differently.

A ventilation device, designated as a whole by 1, serves to vent containers such as radiators 2, of which an outermost rib and a wall 3 are partially indicated in FIGS. 3 to 7 and in FIGS. 9 and 11.

The ventilation device 1 each has a valve body 5 which can be screwed into a threaded bore 4 in the wall 3 of the container and which has an air outlet 7 provided with a ventilation screw 6 and an air inlet opening 8 located higher than this inside the container. The air inlet opening 8 is provided in different ways on a ventilation part 9 which is rotatable relative to the valve body 5.

In all of the exemplary embodiments, it is essential that the ventilation part 9, which is rotatable relative to the valve body 5, has a holding element which keeps it stable in position in the direction of rotation when the valve body 5 is screwed in, and which is explained in more detail below in the individual exemplary embodiments and which has the air inlet opening 8 during and despite the screwing-in movement Screwing-in movement of the valve body 5 in its previously set position, that is to say in the most favorable position for the subsequent ventilation, holds. Thus, after the first and only screwing in of the valve body 5 into the threaded bore 4, an optimal positioning of the air inlet opening 8 can be assumed and no further measures for positioning the most favorable position of this air inlet opening 8 are necessary. The rotary connection between the valve body 5 and the venting part 9 can also be arranged completely inside the container, so that a seal between the valve body 5 and the venting part 9 is unnecessary.

In the exemplary embodiments according to FIGS. 1 to 27 and 32 to 39, the rotatable ventilation part 9 has contact or friction surfaces as a holding element, for example projections, surfaces and / or edges, which will be described when the valve body 5 is inserted into the threaded bore 4, as will be described below in contact with at least one at least partially surrounding them or striking counter surface, counter edge or counter-contact point and can be fixed by it in a positive and / or frictional or clamping manner in the direction of rotation, so that despite the rotational movement when screwing in the valve body 5, the ventilation part 9 is not rotated, i.e. the air inlet opening 8 located thereon maintains a previously selected position that is as favorable as possible. The protrusion or protrusions or other holding elements of this venting part 9 can of course be displaced in the axial direction relative to the counter surface or surfaces. It can be seen in FIGS. 3 to 7 and 9 and 11 that the threaded bore 4 and an outlet 10 which may be provided on it have a sufficiently large axial length and are accommodated, for example, in a corresponding plug body or a corresponding wall thickening.

In the exemplary embodiments according to FIGS. 6 to 11 it is provided that in particular radially projecting projections 11 are provided as holding elements, each of which forms a stop for cooperation with a counter-stop, in the mentioned exemplary embodiments an axial groove 12, which according to FIGS. 8 and 9 in the threaded bore 4 or according to FIGS. 6 and 7 or 10 and 11 in the area adjacent to it, namely the outlet 10.

6 and 7 show an embodiment in which a tube 13 with the air inlet opening 8 is formed on the rotatable ventilation part 9, this tube 13 serving as a projection and stop for cooperation with the axial groove 12, and this during assembly as well engages in the end position according to FIG. 7. In this respect, the tube 13 has an additional function, namely that of the holding element for the rotatable ventilation part 9.

In the exemplary embodiment according to FIGS. 8 and 9, the air inlet opening 8 and the one leading to the air discharge 7 Channel housed in a disc-shaped ventilation part 9, which forms a radially upstanding projection 11 in the area of the air inlet opening 8, which projects together with an axial groove 12 in the area of the thread of the threaded bore 4.

10 and 11 show an embodiment in which the holding element is in turn formed and effective by means of a stop 11, which protrusion engages in an axial groove 12 in continuation of the threaded bore 4 in its outlet 10, i. H. the through opening in the container located in the axial continuation of the threaded region of the threaded bore 4 has the groove 12 which extends in the axial direction, but which could also be designed as a flattened portion, and into which a projection 11 arranged on the rotatable venting part 9, which is also located also extends in the axial direction, fits and runs when screwing the valve body to the walls of this groove. The axial extent of this projection 11 ensures that this projection 11 already engages in the groove 12 beginning at the end of the threaded region of the threaded opening 4, shortly before or at the moment when the thread of the valve body 5 comes into operative connection with the thread of the threaded bore 4 , so that from the beginning or before the actual rotation for screwing in the valve body 5, the fixing of the venting part 9 and its air inlet opening 8 is effected, in the preferred position in which the air inlet opening 8 assumes its position.

The venting part 9, which is either largely a tube 13 (FIGS. 6 and 7) or disk-shaped (FIGS. 8 and 9 or 10 and 11 or also FIGS. 1 and 2) or a combination of both (for example FIGS. 3 to 5, etc .) is fastened in all exemplary embodiments to the valve body 5 in the axial direction by a latching connection forming a pivot bearing 14, the valve body 5 in these exemplary embodiments has a protruding, arranged in the center, the ventilation duct 7 in its interior containing connection piece 15 with locking projections or recesses arranged at its end, which mates with a counter-locking element 16 on the ventilation part 9. The locking projection is designed as a protruding and circumferential collar opposite the nozzle 15. This results in a stable connection in the axial direction, which nevertheless allows good rotatability, especially during the first assembly.

It would also be conceivable to provide an attachment with a locking groove or a locking projection on the ventilation part 9 instead of the above-described configuration of the rotary bearing, with which a counter recess on the valve body 5 in the ventilation channel 7 could be locked with a locking projection or locking groove.

15, 27 or 29 results in a particularly smooth rotation if a distance extending in the axial direction, in particular a small distance, is provided between the valve body 5 and the venting part 9 in a coupled or latched position. This distance can be filled by a swelling disk 17 as an additional seal and to eliminate axial play after wetting with liquid. Such a swelling disk 17 could also be provided in the other exemplary embodiments. The effect of this is that, due to the play and its small axial extent in the dry state, there is very easy rotation between the valve body 5 and the venting part 9. In the installed position, this swelling disk 17 is then wetted as intended by the liquid in the container, so that it swells and then eliminates the play existing in the axial direction, the space it occupies completely filled, and thus the ventilation part 9 additionally fixed in the desired position.

It has already been mentioned that the fixing of the ventilation part 9 can be effected during assembly by friction surfaces which prevent the ventilation part 9 from rotating with the screwing-in movement of the valve body 5 due to the relative rotatability between these two parts. 12 to 17 show exemplary embodiments in which the corresponding friction surfaces can be formed by the edge of the air inlet opening 8 (FIGS. 12 and 13) and by end faces of additional arms 18 projecting radially from the rotary bearing 14. In the case of three radially projecting arms 18, one of which contains the air inlet opening 8 and the channel leading from it to the ventilation duct 7, these three radially projecting arms 18, which have the friction surfaces at their ends, can be stabilized against one another according to FIG. 16 by ring segments 19 . The above-described embodiments according to FIGS. 12 to 17 and the end friction surfaces provided are advantageous and expedient and of corresponding importance for the invention in that they are simple in construction.

1 and 2 show other possibilities for designing the holding element or elements for the ventilation part 9. In these cases, the air inlet opening 8 is in turn arranged at the end of a channel incorporated into the ventilation part 9, which is approximately at right angles and vertically to the actual ventilation channel or Air discharge 7 is at a standstill when the ventilation device 1 is in its position of use. So that the venting part 9 already maintains the position of use during the screwing in of the valve body 5, radially protruding spring tongues or disk bodies 20 are provided in these cases up to the area of the thread of the threaded bore 4 with a corresponding web-shaped radial projection 21 which ensures the axial insertion despite the compared to the core diameter the threaded hole 4 allows larger diameter, but prevents rotation of the venting part 9.

The web-shaped radial projection can also be divided into several elastic segments 21a by interruptions, so that each individual segment 21a can deform and adapt during the screwing-in process and its end face formed in the region of the interruption prevents the ventilation part 9 from rotating can support.

In the exemplary embodiment according to FIGS. 22 and 23, the venting part 9 has a plurality of resilient tongues 22, approximately three in the exemplary embodiment oriented approximately in the circumferential direction, which are arranged one behind the other in the circumferential direction and serve as holding elements. These protrude from the inside diameter of the thread of the threaded bore and possibly the opening wall connected to this thread for the valve body 5, that is to say opposite the outlet 10, and are elastically deformable radially inwards. Thus, these spring tongues 22, which each have protrusions 23 on their outer sides, can be moved axially through the threaded bore 4, but prevent the ventilation part 9 from rotating when the valve body 5 is screwed in and screwed in. In this case, the air inlet opening 8 is again on a tube 13 is provided, which is connected in one piece to the ventilation part 9 and, after a partial axial run, has an angled angle upwards.

The projections 23 projecting radially outward from the surface at the free ends of the resilient tongues 22 are flat, but could also be angular or, analogously to FIGS. 18 and 20, approximately punctiform.

24 to 27, recesses 24 - of different sizes - arranged in the circumferential direction are provided on the rotatable venting body 9, the outer boundary 25 of which can be elastically deformed inward and in the exemplary embodiment protrusions 26 projecting outwards with friction surfaces for interacting with the threaded bore 4 or the neighboring area has 10. In this case, too, a ventilation tube 13 extends approximately from the center of the ventilation body 9 either via a bending point 27 (FIG. 25) or directed diagonally upwards.

On the basis of the exemplary embodiments with the obliquely upwardly projecting tubes 13, it can also be seen that the plane spanned at the vent opening 8 from the edge thereof is accordingly inclined to the bottom of a groove 12 that at least partially encompasses the tube 13 at least when screwing in, which is particularly evident from FIG. 7 becomes clear. Even if the axial groove 12 is so long that the tube remains laterally enclosed by it in the position of use, the air can still enter the vent opening 8 when venting.

3 to 5 illustrate a solution in which the tube 13 pointing obliquely upwards on the rotatable venting part 9 can be bent and / or bent radially and thereby extends over a larger diameter range than the thread of the threaded bore 4. 3 and 4 is thus bent through the inner walls during insertion, which at the same time causes an additional frictional fixing of the venting part 9 during assembly, but in the use position according to FIG. 5 this tube 13 then projects considerably beyond the diameter of the tube Ventilation device 1 and can thus reach a desired high level to allow the best possible ventilation later in use. In this position, the ventilation part 9 by Increases on its circumference, which press against the inner wall of the internal thread, fixed.

However, even rigid tubes can, under certain circumstances, protrude considerably beyond the outer contour of the venting device 1 and the venting part 9, as shown in FIG. 27, when there is a corresponding distance between this tube 13 and the end face of the venting device which is used for insertion of the tube into the container before the thread of the valve body 5 enters the threaded bore 4.

18, 19 and 32 to 35, a ventilation part 9 is shown, which has a disk facing the valve body 5, on the outer circumference of which a substantially hollow ring 28 is attached in one piece, which carries approximately point-shaped projections 29 on its outer circumference. Due to the elasticity of the ring 28 - which consists, for example, of plastic - it is therefore possible to move the vent body 9 axially, while at the same time preventing it from rotating. The relatively short tube 13 is integrally connected to the ventilation part 9.

A solution with recesses 24 and projections 29 arranged on the outside thereof is also shown in FIG. 20, in which case the air inlet opening 8 and the duct leading from it to the air outlet 7 are worked into one of the webs between the recesses 24, which web is in the use position stands approximately at right angles and vertically upwards.

28 to 31, the holding element for preventing the ventilation part 9 from rotating when the valve body 5 is screwed in is formed by a counterweight or overweight 30. On the rotatable ventilation part 9, this overweight 30 is the air inlet opening 8 arranged radially opposite. This overweight 30, which serves as a holding element, thus holds the rotatable venting part 9 and the air inlet opening 8 in their use position by means of gravity. This excess weight could consist entirely of metal or plastic and correspond, for example, to a half circle, as shown in FIG. 28. However, a smaller circle segment could also be provided, in which perforations 31 contain a corresponding filling 32 in order to bring about a sufficiently large amount of gravity.

The features and measures of the exemplary embodiments according to FIGS. 1 to 27 could also be combined with those according to FIGS. 28 to 31. An overweight 30 could therefore be arranged on the rotatable venting part 9 of the air inlet opening 8 radially opposite one another, and projections and / or counter surfaces for frictional engagement on the inside of the threaded bore 4 or an outlet 10 continuing the thread area and / or a stop, one Groove 12 or the like can be provided for a projection which is arranged on the ventilation part 9 and which could also be the tube 13. For example, the tube-like channel sections 33 which can be seen in FIGS. 28 to 31 could have a length such that they protrude corresponding to the arms 18 of FIGS. 12 to 17 into the threaded region of the threaded bore 4. Or the overweights 30 could have an outer circumference which is in frictional contact with the threaded region during the pushing-through and axial adjustment thereof. The entire outer circumference or a projection provided on this outer circumference could generate this frictional force. This could be achieved, for example, that the venting part 9 is already in the desired correct position before the valve body 5 is screwed in. 39 shows an example of such a ventilation device 1, in which a circumferential friction surface on the one hand and overweights 30 on the other hand are provided on the ventilation part 9.

In the exemplary embodiment according to FIGS. 32 and 33, it is also indicated that a ventilation part 9 that can be frictionally fixed during screwing in may have a slightly obliquely upwardly directed connection piece 15 for attaching a tube 13 that can be cut to length. The tube 13 having the vent opening 8 can therefore be plugged on and / or bent and / or cut to length. The user can therefore adapt a tube 13, which may be too long, to the respective conditions by shortening it before assembly.

In the exemplary embodiment according to FIGS. 34 and 35, a ventilation tube 13, which can be bent without special bending folds, can be seen - optionally made of metal - which is fastened in a bore in the ventilation part 9 and opens concentrically to the ventilation channel 7.

36 and 37, finally, a ventilation device 1 is shown, in which the holding element in the area of the contact or friction surfaces has an edge 34 directed towards the valve body 5 and the valve body 5 has a conical, in particular annular surface 35 on which the Edge 34 of the holding element, which is designed as a curved spring in the exemplary embodiment, can be pressed on and can be widened by the conicity of the surface 35 in the radial direction to the outside while increasing the pressure against the counter surface on the threaded bore 4 or its continuation 10. Especially with the aid of FIG. 37, it can be seen that when a force exerted by the counter-pressure of the threaded bore 4 on the spring-shaped holding elements, partially acting in the axial direction, the respective edge 34 also evades in the axial direction, which at the same time results in the conicity of the counter surface 35 deformed radially outwards, which brings about the desired increase in diameter. The stronger the counterforce acting on the holding element when the valve body 5 is screwed in is, the more it can reinforce itself automatically until the edge 34 has reached the end of the surface 35, where further deformation is limited by a stop 36. To an extent predetermined by this stop 36 and the resulting limitation, an automatic increase in the holding force on the ventilation part 9 can be brought about during the screwing in of the valve body 5.

All of the above-described features and measures of the individual exemplary embodiments can, if appropriate, be combined in a meaningful manner and, individually or together, can be of importance for the invention. A swelling disk 17 can also be seen in FIG. 29 which, after the ventilation device 1 has been installed and the container has been filled with liquid, additionally defines the set position and provides an additional seal.

An arrangement of the ventilation device 1 which is simplified with regard to production is shown in FIGS. 40 to 42. It is namely provided that the ventilation part 9 has no rotary coupling with the valve body 5, but is separated from it and thus represents a loose separate part. This can be seen particularly clearly in FIG. 40, where the ventilation part 9 has already been inserted into the opening or threaded bore 4, but the valve body 5 is still outside. In the use or assembly position according to FIGS. 41 and 42, however, the venting part 9 and the valve body 5 touch on the front side of the valve body 5 in such a way that the air inlet opening 8 located on the venting part 9 and its air duct open into the air discharge 7 of the valve body 5. It is easy to understand that after the venting part 9 has been inserted into the threaded bore 4, the valve body 5 can be screwed in and thereby comes into contact with the venting part 9 and pushes it forward as it is screwed in further. However, since the ventilation part 9 rotates is prevented, the relative rotation already described between these two parts takes place without the air inlet opening 8 losing the preselected favorable overhead position and without the need for a rotary coupling connecting the two parts.

In the exemplary embodiment according to FIG. 40, it is provided that at the transition from the ventilation opening 8 on the ventilation part 9 to the air discharge 7 in the valve body 5 on one of the parts, in this case on the ventilation part 9, a conical depression 38 and on the counterpart, that is in the exemplary embodiment on the valve body 5, a conical projection 39 is provided for tight interlocking at the transition area of the ventilation duct to the air discharge 7. The cone angles on the one hand of the outer cone 39 and on the other hand of the inner cone 38 are approximately corresponding to one another. In this way, not only is there a good relative rotatability, but at the same time a seal and, in the position of use, also a firm mutual seat largely corresponding to a rotary coupling.

In the exemplary embodiments according to FIGS. 41 and 42, a modification is provided such that a circumferential seal is provided in the transition region of the mouth of the ventilation opening 8 into the air outlet 7 between the ventilation part 9 and the valve body 5. This is designed according to FIG. 42 - and in one exemplary embodiment with a fixed rotary coupling between valve body 5 and ventilation part 9 according to FIG. 43 - as a lip 40 which is connected in one piece to the ventilation part 9. This sealing lip 40 runs concentrically around the mouth area of the ventilation opening 8 and the air discharge 7 and seals the area in the assembly position, that is when the parts come into contact with the end face. However, as already indicated, such a sealing lip 40 can also be expedient in an embodiment in which the ventilation part 9 passes through a locking connection forming a rotary bearing 14 is fastened in the axial direction, as corresponds to FIGS. 1 and 2 and is shown in FIG. 43.

In FIG. 41, on the other hand, a sealing ring 41, for example inserted in a groove, is provided on the two parts that are not connected to one another in the end-side contact area between valve body 5 and ventilation part 9. This also makes it possible to avoid the desired sealing against premature penetration of liquid from the container to be vented into the air discharge 7.

FIGS. 40, 41 and 43 also show a further arrangement on the ventilation part 9, as a result of which this differs from the exemplary embodiments according to FIGS. 1 to 39 and 42. In this case, namely, the holding element holding the ventilation part 9 in a stable position is not molded onto the ventilation part 9, but rather is a separate, in the exemplary embodiment, annular part 42 which projects beyond the circumference of the holding part 9 in the radial direction and in particular frictionally in a circumferential groove 43 or the like is arranged. Instead of such a circumferential groove 43, to support the separate ring-shaped holding element 42, a stop on the outside of the holding element 9, which is at the rear in the insertion direction, could also run around.

In the exemplary embodiment, this separate annular holding element 42 is an elastic molded part which, according to FIG. 41, has an approximately circular cross section, that is to say represents an O-ring, has a rectangular cross section according to FIG. 43, and recesses 44 encircling it in an annular manner according to FIG. 40 has, whereby this annular holding element 42 is designed to be flexible in the radial direction. It can be seen in Fig. 40 that in this case the cross-section has an X-shape. With radial pressure, an axial pressure is built up at the same time, whereby the fit in the annular groove 43 is improved, that is to say the frictional force against twisting increases.

In the exemplary embodiments according to FIGS. 40 and 41, the circumferential groove 43 which receives the annular holding element 42 is designed as a simple annular groove which runs around on the outside of the ventilation part 9. According to FIG. 43, this circumferential groove 43 can, however, have a cross section which tapers conically from the outside in the radial direction. This also leads to the friction and holding force being increased when the annular holding element 42 is loaded in the radial direction, that is to say is pressed into this conical groove 43. It is useful if this separate annular holding element 42 is made of rubber or synthetic rubber, which has the desired spring elasticity and also has a good coefficient of friction with respect to the material of the ventilation part 9 and with respect to the inside of the threaded bore 4. This ring-shaped holding element 42 advantageously brings about an additional seal, which could possibly save a sealing ring 41 or a sealing lip 40 or a conical coupling seat 38, 39. In any case, the desired friction surfaces result on the outside of the annular holding element 42, in order to prevent the ventilation part 9 from rotating when the valve body 5 touching the end face is screwed in.

The venting device 1 for containers to be filled or filled with a liquid, for. B. radiator 2, has a screwed into a threaded bore 4 in the wall 3 of the container valve body 5, the z. B. provided with a vent screw 6 air outlet 7 to the outside and a higher than this air inlet opening 8 in the interior of the container or radiator 2. This air inlet opening 8 is provided on a ventilation part 9 which is rotatable relative to the valve body 5. The rotatable venting part 9 should allow the setting of the air inlet opening 8 to the highest possible position in its position of use. So that this can be set before assembly of the venting device 1, but this setting is no longer changed during assembly and remains independent of the position in which the valve body 5 is fixed after screwing in, the rotatable venting part 9 has at least one before it Screwing the valve body 5 in the direction of rotation holding holding element z. B. in the form of friction surfaces which cooperate with the threaded bore 4 or a spout 1, and / or in the form of a counterweight 30. The air inlet opening 8 is thus held in the previously set desired position due to the rotatability between the valve body 5 and the ventilation part 9 and the holding force acting on the ventilation part 9 during the screwing in of the valve body 5.
The thread 37 of the screw-in valve body 5 can be seen well for example in FIGS. 1, 2, 3, and 39.

Claims (29)

Venting device (1) for containers to be filled or filled with a liquid, for example radiators (2), heating systems, pipe systems or the like, with a valve body (5) which can be screwed into a threaded bore (4) in the wall (3) of the container has, for example, an air outlet (7) provided with a ventilation screw (6) and an air inlet opening (8) located higher than this inside the container, characterized in that the air inlet opening is provided on a ventilation part (9) which can be rotated relative to the valve body and that the rotatable venting part (9) has at least one holding element which holds the position of the valve body (5) into the wall of the container with respect to its position in the direction of rotation, which holding the air inlet opening (8) during the screwing-in movement of the valve body (5) in its previously set or occupied position. Venting device according to claim 1, characterized in that the rotatable venting part (9) has as holding element one or more projections, surfaces and / or edges or the like contact or friction surfaces which in when the valve body (5) is inserted into the threaded bore (4) Make contact with at least one counter surface, counter edge or counter contact point that at least partially surrounds or impacts them and can be fixed by the latter in a positive and / or frictional or clamping manner in the direction of rotation, and that the projections or similar holding elements in the axial direction are opposite the one or more The counter surface can be moved. Venting device according to claim 1 or 2, characterized in that the protrusion (s) (11) or the like holding elements on the rotatable venting part has a stop which is effective in the direction of rotation for interacting with a counter-stop, in particular an axial groove (12), flattening or the like in the threaded bore ( 4) or the area adjacent to it. Venting device according to one of claims 1 to 3, characterized in that a tube (13) with the air inlet opening (8) is molded onto the rotatable venting part (9). Venting device according to claim 3 or 4, characterized in that the tube (13) serves as a stop for interacting with the counter-stop, in particular at least partially engages in the axial groove (12), flattening or the like of the threaded bore or its neighboring area. Venting device according to claim 1, characterized in that an overweight (30) arranged radially opposite the air inlet opening (8) is provided as a holding element on the rotatable venting part (9), said overweight (30) in its use position, which rotatable venting part (9) and the air inlet opening (8) holds and sets by gravity. Venting device according to one of claims 1 to 6, characterized in that an excess weight (30) is arranged on the rotatable venting part (9) of the air inlet opening (8) radially opposite and projections and / or counter surfaces for frictional engagement on the inside of the threaded bore (4) or an outlet (10) continuing the thread area and / or a stop, a groove (12) or the like is provided for a projection arranged on the ventilation part (9). Venting device according to one of claims 1 to 7, characterized in that the venting part (9) is fastened to the valve body (5) in the axial direction by a latching connection forming a pivot bearing (14), in particular the valve body has a centrally projecting venting channel (7 ) in its interior containing nozzle (15) with locking projections or recesses arranged at its end, which mates with a counter-locking element (16) on the ventilation part (9). Venting device according to one of Claims 1 to 7, characterized in that an attachment with a latching groove or a latching projection is provided on the venting part (9), with which a counter-recess with a latching projection or on the valve body (5) in the venting channel (7) is provided Locking groove can be locked. Venting device according to one of claims 1 to 9, characterized in that between the valve body (5) and the venting part (9) in a coupled or latched position, a distance extending in the radial and / or axial direction, in particular a small distance, is provided . Venting device according to one of claims 1 to 10, characterized in that between the valve body (5) and the venting part (9) a swelling disk (17) is arranged as an additional seal after wetting with liquid, which additionally the venting part (9) in the position of use fixed. Venting device according to one of claims 1 to 11, characterized in that the venting part (9) approximately concentrically to its rotary bearing (14) one or more resilient tongues (22) oriented approximately in the circumferential direction, for. B. three circumferentially arranged spring tongues, which protrude from the inner diameter of the counter-thread of the threaded bore (4) and / or the opening wall connected to this thread for the valve body (5) and can be elastically preformed radially by this. Venting device according to claim 12, characterized in that at the free ends of the resilient tongues (22) protrusions (23) are provided which protrude radially outwards from their surface and which are flat, angular or punctiform. Venting device according to one of Claims 1 to 13, characterized in that recesses (24) are provided in the circumferential direction on the rotatable venting body (9), the outer boundary (25) of which can be elastically deformed inward and preferably has projections (26) projecting outward Has friction surfaces for cooperation with the threaded bore (4) or its neighboring area (10). Venting device according to one of claims 1 to 14, characterized in that the tube and / or arms (18) projecting radially from the fastening point of the rotatable venting part are arranged in such a way that the outer ends are in frictional contact with the inside of the threaded bore or the Step axially on the thread following the thread of the threaded hole. Venting device according to one of claims 1 to 15, characterized in that the through opening in the container in the axial continuation of the threaded region of the threaded bore (4) for the valve body has at least one groove (12), flattening or similar stop extending in the axial direction, into which a hump, projection (11), knobs and / or the tube itself, which is arranged on the rotatable venting part (9), fits and starts when the valve body is screwed in. Venting device according to one of claims 1 to 16, characterized in that the tube is inclined in the use position such that the plane spanned at its vent opening (8) from its edge obliquely to the bottom of the groove (12), which at least when screwing in, partially encompasses the tube (13) ) stands. Venting device according to one of claims 1 to 17, characterized in that the tube (13) arranged obliquely upwards on the rotatable venting part (9) can be bent or bent radially and preferably extends over a larger diameter range than the thread of the threaded bore (4). Venting device according to one of claims 1 to 18, characterized in that the tube (13) having the venting opening (8) can be plugged on and / or bent and / or cut to length. Venting device according to one of the preceding claims, characterized in that on the venting part (9) a disk body (20) projecting radially up to the area of the thread of the threaded bore (4) is provided, the radial projection (21) of which may be provided by interruptions distributed over the circumference are divided into several elastic segments. Venting device according to one of claims 1 to 20, characterized in that the holding element in the region of the contact or friction surfaces has an edge (34) directed against the valve body (5) and the valve body (5) has a conical, in particular annular surface (35) , on which the edge (34) of the holding element can be pressed and can be expanded by the taper of the surface (35) in the radial direction to the outside, increasing the pressure against the counter surface on the threaded bore (4) or its continuation (10). Ventilation device according to one of claims 1 to 21, characterized in that the holding element holding the ventilation part (9) in a stable position is a separate, in particular annular part (42) which projects radially beyond the circumference of the holding part (9) at least in regions and in particular frictionally, for example is arranged in a circumferential groove (43) or the like. Venting device according to claim 22, characterized in that the separate annular holding element (42) is an elastic molded part, the cross section of which is designed to be resilient, in particular in the radial direction, or has an X-shape through recesses, in particular annular recesses (44). Venting device according to claim 22 or 23, characterized in that the circumferential groove (43) receiving the annular holding element (42) runs as an annular groove on the outside of the venting part (9) and has a cross section which tapers conically from the outside in the radial direction. Venting device according to one of claims 22 to 24, characterized in that the separate annular holding element (42) consists of rubber or synthetic rubber. Venting device according to one of Claims 1 to 24, characterized in that, in order to support the separate holding element (42), a stop at the rear in the insertion direction rotates on the outside of the holding element (9). Venting device according to one of Claims 1 to 26, characterized in that the venting part (9) is separated from the valve body (5) and, in the use position or assembly position, touches the end face of the valve body (5) in such a way that the one on the venting part (9) Air inlet opening (8) and its air duct opens into the air outlet (7) of the valve body (5). Venting device according to one of claims 1 to 27, characterized in that in the transition region of the mouth of the venting opening (8) into the air discharge (7) between the venting part (9) and the valve body (5) a circumferential seal as one piece with the venting part (9 ) or the lip (40) connected to the valve part or as a sealing ring (41) inserted, for example, into a groove or the like. Ventilation device according to one of the preceding claims, characterized in that at the transition from the ventilation opening (8) to the air outlet (7) on one of the parts a conical depression (38) and on the counterpart a conical projection (39) for tight engagement in the transition area of the ventilation duct to the air discharge (7) are provided.

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