EP3228561A1 - Soupape pour un reservoir a fluide sous pression - Google Patents

Soupape pour un reservoir a fluide sous pression Download PDF

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Publication number
EP3228561A1
EP3228561A1 EP17164450.3A EP17164450A EP3228561A1 EP 3228561 A1 EP3228561 A1 EP 3228561A1 EP 17164450 A EP17164450 A EP 17164450A EP 3228561 A1 EP3228561 A1 EP 3228561A1
Authority
EP
European Patent Office
Prior art keywords
valve
bearing
valve body
resilient
pressure medium
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.)
Granted
Application number
EP17164450.3A
Other languages
German (de)
English (en)
Other versions
EP3228561B1 (fr
Inventor
Benjamin Scherer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vebo Genossenschaft
Original Assignee
Promotrend AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Promotrend AG filed Critical Promotrend AG
Publication of EP3228561A1 publication Critical patent/EP3228561A1/fr
Application granted granted Critical
Publication of EP3228561B1 publication Critical patent/EP3228561B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/44—Valves specially adapted therefor; Regulating devices

Definitions

  • the present invention relates to a valve for a pressure medium container, in particular for a pressure medium container, as it is used in the processing and processing of food, for example in devices for foaming and dispensing liquids.
  • pressure fluid container with a valve, with which the container can be opened and closed, so that the container can be interchangeable attached to the devices that require the pressure medium.
  • pressure fluid containers are widely used e.g. in extinguishing devices, devices for dispensing building materials, stoves and devices for processing and processing of food, especially in devices for frothing and dispensing liquids in the food industry, such. Cream.
  • the pressure vessels are attached to the valve area on the device, e.g. by means of a screw or latching connection, or the pressure vessel with the valve area are pushed over a corresponding receptacle on the device, wherein at the same time the valve can be opened by moving a locking bolt on the valve.
  • Such a pressure medium container and its use in a device for foaming and dispensing liquids is eg in the EP 2 255 886 A1 described.
  • a pressure medium container with a conventional non-return valve is used, in which a check pin is displaced against the pressure force of the pressure medium when placed on the device, thereby opening the container.
  • the check pin should be pushed back by the pressure medium to close the valve so that no pressure medium escapes.
  • the pressure in the container is not sufficient to move the bolt sufficiently into a closed position in the valve, which results in the disadvantage that a residual pressure medium can escape from the container.
  • coil springs are used, the Tension the recoil pin and tighten to open the valve.
  • FIG WO 2015/032963 An example of such an arrangement is shown in FIG WO 2015/032963 shown.
  • Such check valves conventionally consist of at least three components and therefore has a complicated structure.
  • pressure fluid containers with a membrane closure are known in which the membrane is pierced when mounted on a device with a hollow needle to produce an outlet from the container.
  • the membrane is thus permanently damaged, so that a closure of the pressure medium container is no longer possible.
  • a valve for a pressure medium container consists exclusively of a valve bearing with a flow-through channel and a valve body movably mounted in the flow-through channel for closing the flow-through channel. It is therefore deliberately used a structure that dispenses with the use of a coil spring, which makes it possible to use only two components. This results in a simple and inexpensive, but nevertheless confident construction.
  • the valve may be disposed in a neck portion of a fluid reservoir such that the flow passage provides access to the interior of the reservoir.
  • the valve bearing with the valve body mounted therein is preferably at least partially disposed within the neck portion.
  • the throughflow channel has a constriction, which can be sealed off by the valve body. To shut off the valve body is, for example, close to one or more circumferential edges or a taper of the narrow area.
  • the valve body is movable against a pressing force from a shut-off position in which the flow passage is blocked to a passage position in which the flow passage is opened. For this purpose, it is removed in the axial direction of the channel from the throat area, advantageously in the direction of the pressure medium container and thus against a compressive force exerted by the pressure medium in the container on the valve body.
  • the valve bearing is formed with at least one resilient region which acts on the valve body such that at least after a movement of the valve body in the passage position, the at least one resilient region is stretched, i. is deflected, and generates a compressive force on the valve body.
  • the at least one resilient region is also in the shut-off position of the valve body on this and is sufficiently biased to hold the valve body in the shut-off position.
  • the valve bearing of the valve is arranged on the pressure medium container such that one end is aligned with the at least one resilient region against an outflow direction of the pressure medium and the opposite end is accessible from outside the container.
  • the at least one elastic region is also arranged in the region of the neck portion of the container and comes to rest within the pressure medium container. The compressive force of the elastic region or regions thus acts in the same direction as a pressure of the pressure medium in the pressure medium container.
  • valve body To open the flow channel, the valve body must be moved against the clamping force of the elastic region or the areas of the valve bearing. As soon as no force is exerted on the valve body to deflect out of the shut-off position, it is pressed back into the shut-off position by the elastic force of the elastic region or the regions.
  • a deflection force is exerted on the valve body, for example by a component of a foaming device, when the pressure fluid container with the valve is mounted on the device.
  • the flow channel of the valve bearing to the side of the device out, that is, to the outside of the pressure fluid container, open, so that the component of the valve body operate and move relative to the valve bearing.
  • the valve body is preferably dimensioned such that, after its insertion into the valve bearing, it engages in the shut-off position on the at least one resilient region of the valve bearing such that it is biased and exerts a pressure force in the direction of the shut-off position and holds the valve body in the shut-off position.
  • the valve bearing with the at least one resilient region is formed integrally and serves for the movable mounting of the valve body, for mounting the valve in a pressure medium container and for controlling the valve between an open and a closed position.
  • the valve according to the present invention therefore consists exclusively of two components, which are given by the valve bearing and the valve body. There are no additional spring elements or sealing elements needed to meet the different requirements for the valve.
  • the valve according to the invention can therefore be produced inexpensively and easily manufactured.
  • the valve bearing is formed as a sleeve-shaped body through which the flow passage extends. From one end of the sleeve-shaped body, the at least one elastic region projects at least in sections in the direction of the sleeve axis. At the other end, the sleeve-shaped body is accessible for actuation of the valve body, as previously described.
  • a connection device for connecting the pressure medium container to a device for example a pipe section of the connection device
  • a device for example a pipe section of the connection device
  • the thrust force counteracts the resilience of the elastic region. Since the at least one elastic region protrudes into the throughflow channel of the sleeve body, it can be deflected along the sleeve axis when the valve body is displaced. At the same time, it can serve to hold the valve body in the valve bearing. In this case, the valve body between the narrow portion of the valve bearing and the protruding portion of the resilient portion or the areas is stored and is pressed by the pressure force of the elastic region, or the areas in the shut-off position.
  • a plurality of resilient areas are distributed symmetrically around the circumference of the flow passage of the valve bearing and the portions of the resilient areas projecting towards the bearing axis, symmetrically engage around the circumference of the valve body at this.
  • the valve body is centered along the axis of the flow channel and aligned centrally on the constriction area of the valve bearing.
  • a plurality of elastic regions in the form of spring tongues are provided, which are arranged in a circle around the circumference of the valve bearing.
  • the spring tongues are e.g. in the longitudinal direction of one end of a sleeve body as a valve store.
  • the spring tongues each have a support portion which protrudes in the direction of the bearing axis and on which engages the valve body.
  • the valve body is thus held all around on its outer surface by the support portions of the spring tongues. It is held in a central position in the valve bearing and can be secured in the shut-off position.
  • the two components of the valve according to the invention are provided, for example, as follows:
  • the valve bearing has a constriction area with a small diameter and then a storage area with a large diameter, which is larger than the diameter of the narrow area.
  • the storage area is bounded opposite the narrow area by the inwardly projecting portions of the resilient areas, eg the support sections.
  • the valve body is preferably formed cone-shaped with a conical portion and in some areas has a larger diameter than the narrow region of the valve bearing. As conical a conically tapered shape should be understood.
  • the valve body may also be in the form of a double cone, which tapers conically from a thick central portion in both axial directions.
  • the valve body has a pin portion of constant diameter which can protrude through the narrow region of the valve bearing.
  • the narrow region of the valve bearing can thus serve as a guide for centering the valve body in the flow-through.
  • the cone section is mounted in the bearing area of the valve bearing and closes the narrow area in the shut-off position. Of the Diameter of the bearing area of the valve bearing is greater than the diameter of the thick portion of the cone section. If spring tongues are provided as spring-elastic areas of the valve bearing, these surround the conical section of the valve body and form the bearing area of the valve bearing. The protruding support sections of the spring tongues engage behind the thick conical section of the valve body, so that the conical section tapering towards the narrow region of the valve bearing comes to rest completely in the bearing area of the valve bearing.
  • the support sections of the spring tongues project obliquely toward the bearing axis. Together they form a conically tapered attack surface and a narrowing passage.
  • the diameter of the passage is smaller than a diameter of the valve body.
  • the diameter of the passage is smaller than the thickest diameter of the cone portion.
  • the valve body has a double cone portion having a first conical portion and a second conical portion tapering from a central thick portion to the opposite ends of the double cone portion, as described above.
  • the valve body is mounted in the valve bearing in such a way that the middle thick section is mounted between a constriction area of the valve bearing and the inwardly standing support sections of the spring tongues.
  • the first conical section protrudes in the direction of the narrow area. In the shut-off position, the first conical section projects into the narrow area until it comes to lie sealingly on the circumference of the narrow area.
  • the second conical section protrudes through the support sections, which engage on the second conical section.
  • the support sections slide axially along the conical surface of the second cone portion and are thereby clamped. If the feed force leans on the valve body, the resiliently deflected support sections press against the conical surface and press the valve body in the direction of the narrow area until it sits sealingly against it.
  • the conical surface of the second cone portion serves for better conversion of the radially acting restoring force of the spring tongues into an axially acting pressure force on the valve body.
  • the thrust stroke of the valve body e.g. is achieved by a connection device for connecting the pressure medium container to a device is limited so that the valve body is not pushed out of engagement with the resilient regions of the valve bearing. That is, the thick cone portion is not pressed from the storage area of the valve bearing and the support portions in the pressure medium container.
  • a stop between valve body and valve bearing are provided, which blocks a displacement out of engagement with the resilient regions of the valve bearing. It is also possible to provide a stop between the valve bearing and the connection device which triggers the feed, so that the connection device is stopped by the valve bearing.
  • the tips of the support portions of the spring tongues extend obliquely outward.
  • the ends, or tips thus form an insertion opening whose diameter is greater than a diameter of the valve body.
  • the diameter of the insertion opening may also be larger than a thick portion of a conical valve body, as described above.
  • This insertion opening facilitates the insertion of the valve body in the valve bearing during assembly of the valve.
  • the valve body is inserted and inserted, for example, with its pin portion in the insertion opening, wherein the resilient portion are bent by the thick portions of the valve body until the valve body comes to rest with its thick portion in the bearing area of the valve bearing. Behind the thick section, the elastic region close slightly, so that they continue to attack the valve body and now press it in the direction of the narrow portion of the valve bearing.
  • the valve bearing can, as described above, have symmetrical circumferentially arranged resilient regions which are provided with inclined surfaces extending obliquely to the bearing axis of the valve bearing. These inclined surfaces form a sliding surface for sliding the valve body.
  • the bevels are e.g. formed by conically tapered engagement surface of the spring tongues, which transmit a biasing force of the resilient regions on the valve body.
  • inclined surfaces can serve as sliding surfaces during insertion of the valve body in the storage area of the valve bearing and facilitate the spreading of the resilient areas.
  • a pressure medium container according to the invention is equipped with a valve described above.
  • the valve is arranged in a neck portion of the container.
  • the valve is secured by a snug fit in the neck portion.
  • the fit can be achieved for example between an annular groove and an annular bead between the valve bearing and container.
  • the valve bearing abuts with its constriction on the inner circumference of the pressure medium container.
  • An outer area for insertion of a connection device may extend to outside the container.
  • the at least one resilient region, which adjoins the narrow region of the valve bearing lies on the inside of the container and an end region of the at least one elastic region protrudes inward from an inner wall of the container.
  • the portion which protrudes in the direction of the bearing axis protrudes from the inner wall of the container.
  • the elastic regions are thus partially supported outwards against the container inner wall and are bent up by the valve body in the end region. As a result, the restoring force is increased to the valve body.
  • a valve and a pressure medium container according to the invention can be easily connected to a printing device, since the elastic regions reliably open the valve when connecting the container. Also, the container can be easily replaced, because the valve is securely closed by the resilient areas again, as soon as it is removed from the printing device. Furthermore, the valve can be manufactured cost-saving, since it consists exclusively of two components and can be assembled without great effort.
  • FIG. 1 a valve according to the present invention is shown, which is inserted into a neck portion 1 of a pressure medium container 2.
  • FIG. 1 the valve is shown in a shut-off position in which the pressure medium container 2 can be stored or transported.
  • FIG. 2 is a connection device 3 with a pipe section 4 and pressure medium lines 5 mounted on the valve, so that the pipe section 4 acts on the valve and this is present in a passage position in which a pressure medium in the outflow S from the pressure medium container 2 through the valve and the pressure medium lines. 5 can escape.
  • the valve consists of only two components: a valve bearing 6 and a valve body 7.
  • the valve bearing 6 is as sleeve-shaped body having an axially extending passage formed as a flow passage 25 and is substantially cylindrically symmetric about a bearing axis A.
  • the valve bearing 6 has an outlet 8, a narrowing area 9, a storage area 10 and an insertion area 11.
  • the constriction area 9 has a smaller diameter than the storage area 10 and is closed by the valve body 7.
  • the outlet region 8 can have a larger diameter than the narrow region 9.
  • the outlet region 8 serves as an introduction region for the tube section 4 for actuating the valve body 7. Accordingly, the introduction region 11 is located in the outflow direction S first and the outlet region is behind it.
  • valve bearing 6 is firmly inserted in the neck portion 1 of the pressure medium container 2.
  • a snug fit is provided between the neck portion 1 and outer circumference of the valve bearing 6.
  • the valve bearing 6 for this purpose, for example, a circumferential annular groove 12 and a shoulder 13.
  • the neck portion 1 of the pressure medium container 2 may have a corresponding annular bead 14. When fitted, the annular bead 14 then engages in the annular groove 12 and the shoulder 13 rests on the end of the neck portion 1.
  • the neck portion 1 of the pressure medium container 2 is pulled radially over the shoulder 13 on the valve bearing 6, so that a stable fit is formed.
  • the valve bearing 6 is secured in this snug fit against an axial and against a radial displacement in the neck portion 1, in particular blocks the paragraph 13 a displacement of the valve bearing 6 when pressing a connection device 3 on the valve.
  • the narrow region 9 is located in the region of the annular bead 12.
  • the outlet region 8 is located outside of the pressure medium container 2 and is accessible for placing the connection device 3.
  • the storage area 10 is located within the neck portion 1.
  • the insertion portion may be within the neck portion 1 or already protrude into the widening portion of the pressure medium container.
  • the valve bearing 6 is formed with a plurality of elastic regions in the form of spring tongues 15.
  • the spring tongues 15 engage the valve body 7 in such a way that, at least after a movement of the valve body 7, they are stretched from the shut-off position into the forward position and generate a restoring pressure force on the valve body, such as FIG. 2 is explained in more detail.
  • the spring tongues 15 protrude in the longitudinal direction from one end of the valve bearing 6, so that they are aligned in the direction of the pressure medium container 2 and counter to the outflow S direction.
  • a plurality of spring tongues 15 are provided distributed symmetrically around the circumference of the valve bearing 6.
  • six spring tongues 15 are provided, as in FIG. 3 seen. Between the spring tongues 15 remain intermediate spaces 26, which constitute longitudinal slots in the valve bearing 6.
  • a portion of the spring tongues 15 protrudes as a support portion 16 in the direction of the bearing axis A of the valve bearing 6.
  • the spring tongues 15 engage with their support portions 16 on the valve body 7.
  • the spring tongues 15 are distributed in a circle around the circumference of the valve bearing 6 and enclose the bearing area 10 between them.
  • the storage area 10 extends in the longitudinal direction from the narrow area 9 to the support sections 16.
  • the support portions 16 of the spring tongues 15 project obliquely inwards towards the bearing axis.
  • the resulting bevels 17 of the support portions 16 together form an elastically expandable, conical inclined surface in the storage area 10 of the valve bearing 6, which tapers towards the end of the storage area 10.
  • the support portions 16 further enclose a passage 18 whose diameter is smaller than a diameter of the bearing portion 10 and a diameter of the valve body.
  • the resulting tongues 20 at the end of the spring tongues 15 together form an elastically expandable, conical inclined surface in the insertion region 11 of the valve bearing 6, the widens towards the end of the valve bearing 6.
  • the slopes 17 and the slopes 20 form between them the support portions 16.
  • the diameter of the insertion opening 19 between the ends of the valve bearing 6 is greater than a diameter of the valve body 7.
  • the inclined surfaces form sliding surfaces along which the valve body 7 can slide when he is inserted into the valve bearing 6 (bevels 20) or when it is moved from the shut-off position to the forward position (bevels 17), as in FIG. 2 is explained in more detail.
  • the valve body 7 is conically formed with a cone portion and a pin portion 21.
  • the cone portion is formed as a double cone section.
  • the cone section comprises a first conical portion 22 and a second conical portion 23 tapering from a middle thick portion 24 toward the ends of the double cone portion.
  • the conical section has a larger diameter in the region of the thick section 24 than the narrow section.
  • the conical section is essentially mounted in the bearing area 10 of the valve bearing 6, wherein the first conical section 22 projects into the constricting area 9 and can abut it all around, so that it closes the narrow area 9 in the shut-off position and closes the flow-through channel 25 through the valve bearing 6 ,
  • the middle thick portion 24 comes to lie between the narrow portion 9 and the support portions 16 of the spring tongues 15.
  • the second conical section 23 protrudes through the support sections 16, wherein the support sections 16 rest against the surface of the section 23.
  • the spring tongues 15 are slightly tensioned, so that they exert a radial force on the valve body 7, which is converted by the conical taper of the portion 23 in an axial force in the direction of the outflow direction S.
  • valve body 7 For mounting the valve body 7 in the valve bearing 6, the valve body 7 can be inserted with the pin portion 21 through the insertion opening 19 and the passage 16 in the valve bearing 6.
  • the support portions 16 come to lie on the first conical surface 22 of the cone portion and are widened by this during insertion.
  • the spring tongues 15 narrow again and securely receive the valve body in the bearing region 10, the support sections 16 coming to rest on the second conical surface 23 of the conical section and the valve body in the shut-off position against the constriction area 9 of the valve bearing 6 press.
  • valve body 7 could also be designed as a simple cone.
  • the thick cone portion forms an end edge of the valve body, which bears against the bevels 17 of the spring tongues 15.
  • the support portions 16 converge behind the cone portion so that the valve body does not protrude.
  • a radial clamping force of the spring tongues 15 is transmitted via the bevels 17 to the end edge of the valve body and converted into an axial compressive force in the direction of the narrow region 9.
  • FIG. 2 the valve is shown in a passage position.
  • the valve body 7 was from the pipe section 4 of the connecting device 3 from the shut-off position in the passage position axially against the outflow S advanced.
  • the pipe section 4 which sits firmly in the connection device 3, engages the end of the valve body 7, which protrudes into the outlet 8, and moves the valve body 7 until the connection device 3 abuts the end of the valve bearing 6 and blocks further advancement is.
  • the connection device 3 is fastened in the passage position in a conventional manner on the pressure medium container or on the valve.
  • the spring tongues 15 of the valve bearing are advantageously biased both in a passage position and in a shut-off position. It is thus ensured that the valve remains closed when the valve body 7 is not deflected. Also in the passage position of the valve body 7 is not shifted within the valve bearing 6 so far that the support portions 16 would slip over the thick portion 24 of the valve body 7. The valve body therefore remains securely held in the valve bearing.
  • connection device 3 If the pressure fluid tank 2 are removed from the connection device 3, z. B. because the container is empty or for safety reasons, the attachment of the connection device is released and the pipe section 4 removed when removing the connection device from the valve body 7. Therefore, there is no deflection force acting on the valve body 7, so that they are displaced by the pressure force of the spring tongues 15 back into the shut-off position can.
  • the support sections 16 press radially against the second conical section 23 and press the first conical section 22 in the direction of the narrow region 9 of the valve bearing 6 until the conical section tightly closes the narrow area.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Closures For Containers (AREA)
EP17164450.3A 2016-04-07 2017-04-01 Soupape pour un réservoir à fluide sous pression Active EP3228561B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00449/16A CH712324A1 (de) 2016-04-07 2016-04-07 Ventil für Druckmittelbehälter.

Publications (2)

Publication Number Publication Date
EP3228561A1 true EP3228561A1 (fr) 2017-10-11
EP3228561B1 EP3228561B1 (fr) 2019-07-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17164450.3A Active EP3228561B1 (fr) 2016-04-07 2017-04-01 Soupape pour un réservoir à fluide sous pression

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EP (1) EP3228561B1 (fr)
CH (1) CH712324A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1723480A1 (fr) * 2004-03-12 2006-11-22 Hengst GmbH & Co. KG Soupape pneumatique de regulation de pression
EP2255886A1 (fr) 2009-05-29 2010-12-01 Mercedes Sánchez Cubero Dispositif de moussage et de dépôt de liquides
WO2015032963A1 (fr) 2013-09-09 2015-03-12 Werner, Hans Jürgen Soupape en matière solide

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10349395B3 (de) * 2003-10-21 2005-01-05 Hartung Kunststoffwerk-Werkzeugbau Gmbh Vorrichtung zum Abdichten einer Behälteröffnung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1723480A1 (fr) * 2004-03-12 2006-11-22 Hengst GmbH & Co. KG Soupape pneumatique de regulation de pression
EP2255886A1 (fr) 2009-05-29 2010-12-01 Mercedes Sánchez Cubero Dispositif de moussage et de dépôt de liquides
WO2015032963A1 (fr) 2013-09-09 2015-03-12 Werner, Hans Jürgen Soupape en matière solide

Also Published As

Publication number Publication date
CH712324A1 (de) 2017-10-13
EP3228561B1 (fr) 2019-07-24

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