EP0545217B1 - Dispositif de désaération pour récipients, par exemple des radiateurs de chauffage - Google Patents

Dispositif de désaération pour récipients, par exemple des radiateurs de chauffage Download PDF

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Publication number
EP0545217B1
EP0545217B1 EP92119951A EP92119951A EP0545217B1 EP 0545217 B1 EP0545217 B1 EP 0545217B1 EP 92119951 A EP92119951 A EP 92119951A EP 92119951 A EP92119951 A EP 92119951A EP 0545217 B1 EP0545217 B1 EP 0545217B1
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EP
European Patent Office
Prior art keywords
valve body
deaerator
vent member
vent
rotatable
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
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EP92119951A
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German (de)
English (en)
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EP0545217A1 (fr
Inventor
Peter Gehring
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Anton Hummel Verwaltungs GmbH
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Anton Hummel Verwaltungs GmbH
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Publication of EP0545217A1 publication Critical patent/EP0545217A1/fr
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/08—Arrangements for drainage, venting or aerating

Definitions

  • the invention relates to a ventilation device according to the preamble of patent claim 1.
  • Such a ventilation device is known from CH-A-386 077.
  • a plug with an internal thread is required in the container to be vented, and a vent tube is screwed into it from the inside. After the plug has been attached, this ventilation tube must be brought into the desired position in which the air inlet opening is higher than the air outlet. Then the actual valve body is screwed into the internal thread of the plug from the other side until it reaches its stop position. Between the screw-in valve body on the one hand and the screw-in tube serving as a venting part, remains within the stopper a distance. Under no circumstances can the valve body and venting part be installed without the plug that receives them.
  • a venting device which can be attached to a stopper, but also directly in a wall of the container to be vented.
  • the air inlet opening is provided on a flexible supply line designed as a piece of hose, 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.
  • a flexible line piece made of a plastic will become brittle and ultimately unusable over the years.
  • the object is therefore to create 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. Yet 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.
  • 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 use position.
  • the ventilation part when the valve body is screwed in, the ventilation part is subjected 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.
  • the rotatable ventilation part has one or more projections, surfaces and / or edges or similar contact or friction surfaces as holding elements 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 non-positively or frictionally or clamped in the direction of rotation, and that the protrusions or similar holding elements can / are displaceable in the axial direction relative to the / the counter surfaces.
  • 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.
  • Another or additional solution can consist in that the protrusion or the like holding elements on the rotatable venting part has a stop effective in the direction of rotation for cooperation with a counter stop, in particular an axial groove, flattening or the like in the threaded bore or the area adjacent to it in the axial direction Has.
  • a stop effective in the direction of rotation for cooperation with a counter stop, in particular an axial groove, flattening or the like in the threaded bore or the area adjacent to it in the axial direction Has.
  • An expedient embodiment of the invention can provide that a tube with the air inlet opening is formed on the rotatable ventilation 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, in that the tube is used to apply the resistance to the venting part, which holds it in the desired position while the valve body is being 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.
  • an eccentric weight, as a holding element thus 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.
  • 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 takes place due to the weight and the relative rotatability of the ventilation part relative to the valve body and thus automatically adjusts itself correctly.
  • the different solutions could also be combined, for example in that an excess weight is arranged radially opposite the rotatable venting 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.
  • 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, to eliminate axial play, because it in the assembly position when it comes into contact with the liquid inside the container, swells and then more or less compensates for or eliminates 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 with 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 discharged 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, for example, be arranged so that it itself forms the holding element.
  • Claim 20 relates to a further possibility of forming the holding part designed as a disk body and making it more adaptable with regard to its flexibility and suppleness.
  • Claim 21 contains a combination of features, which 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.
  • 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 ventilation device, because it is provided that the ventilation part and the valve body are not connected to each other, which of course makes them even more rotatable relative to each other. A corresponding rotatable connection can thus be saved.
  • the venting part can first be inserted a bit into the threaded hole or the like in the correct position required, after which the valve body is screwed in and the venting part is displaced into its end position by its axial movement when screwing in, when the valve body comes into contact with it the venting part.
  • Claims 28 and 29 relate to possibilities of sealing between the valve body and the venting part, in particular for the embodiment 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.
  • venting device in which the vent opening can be given the highest possible position without subsequent influence from outside, the user being able to adjust this position during insertion and this is then maintained despite the rotary movement when the valve body is screwed in.
  • 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 venting device 1 in each case 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 in the interior of 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.
  • 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 the screwing-in movement and despite this 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.
  • 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 the screwing-in movement and despite this 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.
  • 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.
  • 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 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.
  • 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 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 screw
  • 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.
  • 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.
  • FIG. 6 and 7 show an embodiment in which a tube 13 with the air inlet opening 8 is formed on the rotatable venting 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.
  • the tube 13 has an additional function, namely that of the holding element for the rotatable ventilation part 9.
  • the air inlet opening 8 and the one leading from it 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.
  • the holding element is in turn formed and effective with the aid of a stop 11, which projection 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 in the process also extends in the axial direction, fits and runs when screwing the valve body to the walls of this groove.
  • 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 even before the actual rotation for screwing in the valve body 5, the fixing of the ventilation 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.
  • 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 fills, and thus the ventilation part 9 additionally fixed in the desired position.
  • FIGS. 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.
  • 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.
  • 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.
  • the air inlet opening 8 is in turn arranged at the end of a channel incorporated in the ventilation part 9, which is approximately at right angles and vertically to the actual ventilation channel or Air discharge 7 stands when the ventilation device 1 has its position of use.
  • 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.
  • 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.
  • these spring tongues 22, which each have protrusions 23 on their outer sides can move 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.
  • the air inlet opening 8 is again on a tube 13 is provided, which is connected in one piece to the venting part 9 and, after a partial axial run, has an angled angle upwards.
  • the projections 23 protruding radially outward from the surface at the free ends of the resilient tongues 22 are flat, but could also be angular or analogous to FIGS.
  • a ventilation tube 13 extends from the center of the ventilation body 9 either via a bending point 27 (FIG. 25) or directly directed obliquely upwards.
  • 3 to 5 illustrate a solution in which the tube 13 pointing obliquely upward 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.
  • the ventilation part 9 by the Increases on its circumference, which press against the inner wall of the internal thread, fixed.
  • a ventilation part 9 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 in turn possible to move axially while at the same time preventing the ventilation body 9 from rotating.
  • the relatively short tube 13 is integrally connected to the ventilation part 9.
  • FIG. 20 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.
  • 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.
  • 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 ventilation 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.
  • 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 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 may be provided for a projection which is arranged on the ventilation part 9 and which could also be the tube 13.
  • the tube-like channel sections 33 which can be seen in FIGS. 28 to 31 could have a length such that they project into the threaded region of the threaded bore 4 in accordance with the arms 18 of FIGS. 12 to 17.
  • 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.
  • FIG. 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.
  • a ventilation part 9 which can be frictionally fixed during screwing-in can have a slightly obliquely upwardly directed nozzle 15 for attaching a tube 13 which 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.
  • 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.
  • a ventilation device 1 in which the holding element in the area 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, 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.
  • 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.
  • FIGS. 40 to 42 An arrangement of the ventilation device 1 which is simplified in terms of production is shown in FIGS. 40 to 42. It is namely provided that the venting 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 end face 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.
  • 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.
  • the ventilation part 9 rotates is prevented, the relative rotation already described takes place between these two parts without the air inlet opening 8 losing the preselected favorable overhead position and without the need for a rotary coupling connecting the two parts.
  • a conical projection 39 is provided for tight engagement in the transition region 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.
  • 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 the valve body 5 and the venting part 9 according to FIG. 43 - as a lip 40 connected in one piece to the venting 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 to say when the parts come into contact with the end face.
  • 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 pivot bearing 14 is fastened in the axial direction, as corresponds to FIGS. 1 and 2 and is shown in FIG. 43.
  • 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 prevents 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.
  • the holding element holding the ventilation part 9 in a stable position is not integrally formed on 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.
  • a stop at the rear in the insertion direction could also run around on the outside of the holding element 9.
  • 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.
  • 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.
  • this circumferential groove 43 can, however, have a cross section that 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.
  • 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.
  • 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.
  • the rotatable ventilation 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 venting part 9 and the holding force acting on the venting 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.

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  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Closures For Containers (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Devices For Use In Laboratory Experiments (AREA)

Claims (29)

  1. Dispositif de purge d'air (1) pour des récipients remplis ou destinés à être remplis de liquide, par exemple des radiateurs de chauffage (2), des installations de chauffage, des tuyauteries ou analogues, comprenant un corps de vanne (5) pouvant être vissé dans un taraudage (4) de la paroi (3) du récipient, qui comporte une évacuation d'air (7) vers l'extérieur, par exemple munie d'une vis de purge (6), et, à l'intérieur du récipient, un orifice d'entrée d'air (8) qui est situé plus haut que l'évacuation d'air, l'orifice d'entrée d'air étant prévu sur un élément de purge (9) pouvant tourner par rapport au corps de vanne, caractérisé en ce que l'élément de purge tournant (9) est relié au corps de vanne (5) par le biais d'un coussinet de pivotement (14) ou en ce que l'élément de purge (9) et le corps de vanne (5) en position de montage et d'utilisation se touchent de telle manière que l'orifice d'entrée d'air (8) qui se trouve sur l'élément de purge (9) et son canal d'air débouchent dans l'évacuation d'air (7) du corps de vanne (5), et en ce que l'élément de purge (9) présente au moins un élément de maintien qui le maintient dans sa position dans le sens de rotation lorsque l'on visse le corps de vanne (5) dans la paroi (3) du récipient, élément de maintien qui, pendant le mouvement de vissage du corps de vanne (5), maintient l'orifice d'entrée d'air (8) dans la position dans laquelle elle a été mise ou qu'elle a prise précédemment.
  2. Dispositif de purge d'air selon la revendication 1, caractérisé en ce que l'élément de purge tournant (9) comporte en tant qu'élément de maintien une ou plusieurs saillies, surfaces et/ou arêtes ou surfaces de contact ou de friction analogues qui, lorsqu'on introduit le corps de vanne (5) dans le taraudage (4), entrent en contact avec au moins une contre-surface, une contre-arête ou un contre-point de contact qui les entoure au moins partiellement ou qui les sollicite et peuvent être immobilisées dans le sens de rotation par celle-ci (celui-ci) par engagement positif et/ou par friction ou par serrage, et en ce que la/les saillie(s) ou éléments de maintien analogues peut (peuvent) être déplacée(s) dans la direction axiale par rapport à la (aux) contre-surface(s).
  3. Dispositif de purge selon la revendication 2, caractérisé en ce que la ou les saillies (11) ou éléments de maintien analogues comporte(nt) sur l'élément de purge tournant une butée agissant dans le sens de rotation qui est destinée à coopérer avec une contrebutée, notamment une rainure axiale (12), un aplatissement ou analogues situé(e) dans le taraudage (4) ou dans la zone adjacente à celui-ci.
  4. Dispositif de purge selon l'une des revendications 1 à 3, caractérisé en ce qu'un petit tuyau (13) présentant l'orifice d'entrée d'air (8) est réalisé sur l'élément de purge (9).
  5. Dispositif de purge selon la revendication 4, caractérisé en ce que le petit tuyau (13) sert de butée destinée à coopérer avec la contrebutée et s'enclenche au moins en partie notamment dans la rainure axiale (12), dans l'aplatissement ou analogues du taraudage ou de sa zone voisine.
  6. Dispositif de purge selon la revendication 1, caractérisé en ce qu'un poids (30) placé radialement en face de l'orifice d'entrée d'air (8) et servant d'élément de maintien est prévu sur l'élément de purge tournant (9), qui maintient et fixe l'élément de purge (9) et l'orifice d'entrée d'air (8) dans leur position d'utilisation au moyen de la pesanteur.
  7. Dispositif de purge selon l'une des revendications 1 à 6, caractérisé en ce que, sur l'élément de purge tournant (9), est prévu un poids (30) placé radialement en face de l'orifice d'entrée d'air (8) ou sont prévues des saillies et/ou des contre-surfaces destinées à s'appliquer par friction contre la face intérieure du taraudage (4) ou contre le prolongement (10) de la partie taraudée, et/ou une butée, une rainure (12) ou analogues pour une saillie placée sur l'élément de purge (9).
  8. Dispositif de purge d'air selon l'une des revendications 1 à 7, caractérisé en ce que l'élément de purge (9) est fixé au corps de vanne (5) dans la direction radiale par une liaison par enclenchement formant un coussinet de pivotement (14), en ce que notamment le corps de vanne présente un ajutage (15) faisant saillie en son milieu et contenant le canal de purge (7), qui est muni à son extrémité de saillies ou de crans d'enclenchement et auquel correspond un pendant (16) sur l'élément de purge (9).
  9. Dispositif de purge selon l'une des revendications 1 à 7, caractérisé en ce que, sur l'élément de purge (9), est prévu un talon muni d'une rainure d'enclenchement ou d'une saillie d'enclenchement permettant d'y enclencher un pendant muni d'une saillie d'enclenchement ou d'une rainure d'enclenchement qui est présent dans le canal de purge (7) du corps de vanne (5).
  10. Dispositif de purge selon l'une des revendications 1 à 9, caractérisé en ce que, entre le corps de vanne (5) et l'élément de purge (9) en position accouplée ou enclenchée, est prévu un écart, notamment un faible écart, s'étendant dans la direction radiale et/ou axiale.
  11. Dispositif de purge selon l'une des revendications 1 à 10, caractérisé en ce que, entre le corps de vanne (5) et l'élément de purge (9), est placé un disque gonflant (17) qui sert de joint supplémentaire après l'avoir humidifié avec du liquide et qui constitue une fixation supplémentaire pour l'élément de purge (9) dans la position d'utilisation.
  12. Dispositif de purge selon l'une des revendications 1 à 11, caractérisé en ce que l'élément de purge (9) présente, approximativement de façon concentrique par rapport à son coussinet de pivotement (14), une ou plusieurs languettes à ressort (22) disposées vers le pourtour, par ex. trois languettes à ressort disposées l'une derrière l'autre le long du pourtour, qui font saillie par rapport au diamètre intérieur du pendant du taraudage (4) et/ou à la paroi de l'orifice qui est raccordée à ce taraudage pour le corps de vanne (5), et peuvent déformées de façon élastique radialement vers l'intérieur par cette paroi.
  13. Dispositif de purge selon la revendication 12, caractérisé en ce qu'aux extrémités libres des languettes a ressort (22) sont prévues des saillies (23) faisant saillie radialement vers l'extérieur par rapport à la surface des languettes, qui sont réalisées de façon plate, polygonale ou en forme de point.
  14. Dispositif de purge selon l'une des revendications 1 à 13, caractérisé en ce que, sur l'élément de purge tournant (9), sont prévus des évidements (24) disposés en direction du pourtour, dont la limite extérieure (25) peut être déformée souplement vers l'intérieur et comporte des saillies (26) faisant saillie, de préférence, vers l'extérieur et munies de surfaces de friction pour coopérer avec le taraudage (4) ou avec la zone voisine (10) de ce dernier.
  15. Dispositif de purge selon l'une des revendications 4 à 14, caractérisé en ce que le petit tuyau et/ou des bras (18) prévus en plus de ce dernier qui partent radialement du point de fixation de l'élément de purge tournant sont disposés de telle manière que les extrémités situées à l'extérieur entrent en contact de friction avec la face intérieure du taraudage ou avec la paroi faisant suite dans la direction axiale aux filets du taraudage.
  16. Dispositif de purge selon l'une des revendications 1 à 15, caractérisé en ce que l'ouverture de passage dans le récipient se trouvant dans le prolongement axial de la zone filetée du taraudage (4) pour le corps de vanne présente au moins une rainure (12), un aplatissement ou une butée analogue s'étendant dans la direction de l'axe, auquel (à laquelle) correspond une bosse, une saillie (11), une protubérance placée sur l'élément de purge tournant (9) et/ou le petit tuyau lui-même qui s'y loge en vissant le corps de vanne.
  17. Dispositif de purge selon l'une des revendications 4 à 16, caractérisé en ce que le petit tuyau en position d'utilisation présente une inclinaison telle que le plan partant du bord de son orifice de purge (8) s'étend en biais par rapport au fond de la rainure (12) entourant le petit tuyau (13) au moins en partie lors du vissage.
  18. Dispositif de purge selon la revendication 17, caractérisé en ce que le petit tuyau (13) disposé en biais vers le haut sur l'élément de purge tournant (9) est flexible ou peut être recourbé de façon radiale et s'étend, de préférence, sur une zone de diamètre plus importante que les filets du taraudage (4).
  19. Dispositif de purge selon l'une des revendications 4 à 18, caractérisé en ce que le petit tuyau (13) présentant l'orifice de purge (8) peut être enfoncé et/ou recourbé et/ou mis à la longueur.
  20. Dispositif de purge selon l'une des revendications précédentes, caractérisé en ce que, sur l'élément de purge tournant (9), est prévu un disque (20) faisant saillie dans la direction radiale jusque dans la zone des filets de vis du taraudage (4), dont la partie saillante radiale (21) est éventuellement divisée en plusieurs segments élastiques par des entailles réparties sur le pourtour.
  21. Dispositif de purge selon l'une des revendications 1 à 20, caractérisé en ce que l'élément de maintien comporte, dans la zone des surfaces de contact ou de friction, un bord (34) dirigé vers le corps de vanne (5) et le corps de vanne (5) comporte une surface conique notamment annulaire (35) contre laquelle le bord (34) de l'élément de maintien peut être appuyé et, du fait de la conicité de la surface (35), peut être élargi dans la direction radiale vers l'extérieur en renforçant la pression exercée sur la contre-surface au niveau du taraudage (4) ou de son prolongement (10).
  22. Dispositif de purge selon l'une des revendications 1 à 21, caractérisé en ce que l'élément de maintien maintenant l'élément de purge (9) dans sa position est une pièce séparée notamment annulaire (42) qui dépasse au moins partiellement du bord de l'élément de purge (9) dans la direction radiale et qui est disposée notamment avec un contact de friction, par exemple, dans une rainure périphérique (43) ou analogues.
  23. Dispositif de purge selon la revendication 22, caractérisé en ce que l'élément de maintien annulaire séparé (42) est une pièce moulée élastique dont la section transversale est conçue de façon flexible notamment dans la direction radiale grâce à des évidements, notamment grâce à des évidements répartis en cercle sur son pourtour (44), ou a la forme d'un X.
  24. Dispositif de purge selon la revendication 22 ou 23, caractérisé en ce que la rainure périphérique (43) recevant l'élément de maintien annulaire (42) s'étend en tant que rainure annulaire sur l'extérieur de l'élément de purge (9) et présente une section transversale se rétrécissant de façon conique de l'extérieur vers l'intérieur dans la direction radiale.
  25. Dispositif de purge selon l'une des revendications 22 à 24, caractérisé en ce que l'élément de maintien annulaire séparé (42) est en caoutchouc ou en caoutchouc synthétique.
  26. Dispositif de purge selon l'une des revendications 22 à 24, caractérisé en ce que, pour supporter l'élément de maintien séparé (42), une butée arrière par rapport au sens d'enfoncement s'étend sur le pourtour extérieur de l'élément de purge (9).
  27. Dispositif de purge selon l'une des revendications 1 à 26, caractérisé en ce que l'élément de purge (9) est séparé du corps de vanne (5) et, en position d'utilisation ou de montage, touche la face frontale du corps de vanne (5) de telle manière que l'orifice d'entrée d'air (8) situé sur l'élément de purge (9) et son canal d'air débouchent dans l'évacuation d'air (7) du corps de vanne (5).
  28. Dispositif de purge selon l'une des revendications 1 à 27, caractérisé en ce que dans la zone de transition où l'orifice de purge (8) débouche dans l'évacuation d'air (7), entre l'élément de purge (9) et le corps de vanne (5), est prévu un joint circulaire sous la forme d'une lèvre (40) reliée à l'élément de purge (9) ou à la vanne de manière à former une seule pièce ou sous la forme d'une bague d'étanchéité (41) logée, par exemple, dans une rainure ou analogues.
  29. Dispositif de purge selon l'une des revendications précédentes, caractérisé en ce que qu'au niveau de la transition entre l'orifice de purge (8) et l'évacuation d'air (7), un renfoncement conique (38) est prévu sur l'une des pièces et une saillie conique (39) est prévue sur le pendant, qui sont destinés à s'emboîter de manière à réaliser l'étanchéité dans la zone de transition entre le canal de purge et l'évacuation d'air (7).
EP92119951A 1991-11-29 1992-11-24 Dispositif de désaération pour récipients, par exemple des radiateurs de chauffage Expired - Lifetime EP0545217B1 (fr)

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Application Number Priority Date Filing Date Title
DE4139350 1991-11-29
DE4139350A DE4139350C2 (de) 1991-11-29 1991-11-29 Entlüftungsvorrichtung für ein Flüssigkeitsbehältnis

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EP0545217A1 EP0545217A1 (fr) 1993-06-09
EP0545217B1 true EP0545217B1 (fr) 1995-09-13

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IT248943Y1 (it) * 1999-07-06 2003-03-06 Gruppo Ragaini S P A Valvola di sfiato per radiatori di impianti a termosofone, corredatadi galleggiante
DE20302828U1 (de) * 2003-02-21 2003-05-28 Hummel Anton Verwaltung Entlüftungsventil

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DE1579902A1 (de) * 1951-01-28 1970-08-27 Hummel Metallwarenfab A Radiator-Entlueftungsstopfen mit nachstellbarem Entlueftungsexzenter
CH386077A (de) * 1961-10-16 1964-12-31 Strebelwerk Ag Entlüftungsvorrichtung, insbesondere für Heizkörper
FR1604604A (fr) * 1968-08-05 1972-01-03
DE1817301A1 (de) * 1968-12-28 1970-07-23 Karl Boetticher Luftablassvorrichtung an Warmwasser-Heizkoerpern
DE1965234A1 (de) * 1969-12-29 1971-07-01 Herbert Goesser Entluefter fuer fluessigkeitsgefuellte Heizkoerper
AT358776B (de) * 1977-06-30 1980-09-25 Koeberl Karl Vorrichtung zum entlueften von mit einem fluessigen waermetraeger gefuellten heizkoerpern
DE3114609C2 (de) * 1981-04-10 1985-10-17 Anton Hummel Gmbh Metallwarenfabrik, 7808 Waldkirch Entlüftungsvorrichtung

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DE4139350A1 (de) 1993-06-03
ATE127906T1 (de) 1995-09-15
DE4139350C2 (de) 1994-05-19
DE59203678D1 (de) 1995-10-19
EP0545217A1 (fr) 1993-06-09

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