IT201800009658A1 - SAFETY VALVE FOR ONE GAS BOTTLE AND GAS BOTTLE INCLUDING THIS VALVE - Google Patents
SAFETY VALVE FOR ONE GAS BOTTLE AND GAS BOTTLE INCLUDING THIS VALVE Download PDFInfo
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- IT201800009658A1 IT201800009658A1 IT102018000009658A IT201800009658A IT201800009658A1 IT 201800009658 A1 IT201800009658 A1 IT 201800009658A1 IT 102018000009658 A IT102018000009658 A IT 102018000009658A IT 201800009658 A IT201800009658 A IT 201800009658A IT 201800009658 A1 IT201800009658 A1 IT 201800009658A1
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- Italy
- Prior art keywords
- axis
- flange
- valve
- container
- gas
- Prior art date
Links
- 238000007789 sealing Methods 0.000 claims description 17
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 6
- 239000001273 butane Substances 0.000 description 6
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 6
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000001294 propane Substances 0.000 description 3
- 235000021168 barbecue Nutrition 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/03—Orientation
- F17C2201/032—Orientation with substantially vertical main axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/058—Size portable (<30 l)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0305—Bosses, e.g. boss collars
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0311—Closure means
- F17C2205/032—Closure means pierceable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0323—Valves
- F17C2205/0329—Valves manually actuated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/035—Propane butane, e.g. LPG, GPL
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0107—Single phase
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/033—Small pressure, e.g. for liquefied gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/01—Improving mechanical properties or manufacturing
- F17C2260/013—Reducing manufacturing time or effort
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/035—Dealing with losses of fluid
- F17C2260/036—Avoiding leaks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/07—Applications for household use
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/07—Applications for household use
- F17C2270/0709—Camping gas
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Closures For Containers (AREA)
Description
DESCRIZIONE DESCRIPTION
del brevetto per invenzione industriale dal titolo: of the patent for industrial invention entitled:
“VALVOLA DI SICUREZZA PER UNA BOMBOLETTA A GAS E BOMBOLETTA A GAS INCLUDENTE TALE VALVOLA” "SAFETY VALVE FOR A GAS CYLINDER AND A GAS CYLINDER INCLUDING THIS VALVE"
La presente invenzione è relativa ad una valvola limitatrice di efflusso (in inglese comunemente nota come “leakage-limiter valve”) o di sicurezza per una bomboletta a gas, in particolare per una bomboletta a gas di tipo portatile e preferibilmente destinata ad essere utilizzata per l’alimentazione di gas ad un dispositivo utilizzatore esterno, ad esempio barbecue, fornelli, lampade e dispositivi similari. The present invention relates to an outflow limiting valve (commonly known as a "leakage-limiter valve" in English) or a safety valve for a gas cylinder, in particular for a portable type gas cylinder and preferably intended to be used for the supply of gas to an external user device, for example barbecues, stoves, lamps and similar devices.
La presente invenzione è inoltre relativa ad una bomboletta a gas includente tale valvola per limitare fuoriuscite di gas in seguito alla disconnessione della bomboletta stessa, non ancora esaurita, dal dispositivo utilizzatore esterno. The present invention also relates to a gas cylinder including this valve for limiting gas leaks following the disconnection of the cylinder itself, not yet exhausted, from the external user device.
Sono note bombolette a gas del tipo sopra richiamato comprendenti essenzialmente: Gas cylinders of the aforementioned type are known, essentially comprising:
- un contenitore sigillato, riempito con gas in pressione, ad esempio gas butano o una miscela di gas butano e propano, e provvisto, su una propria parete superiore, di una porzione perforabile per consentire l’alimentazione di gas al dispositivo utilizzatore esterno; ed - una valvola limitatrice di efflusso o di sicurezza posizionata all’interno del contenitore in modo da almeno limitare la fuoriuscita di gas nel caso in cui la porzione perforabile sia stata forata e la bomboletta stessa non sia collegata al dispositivo utilizzatore esterno. - a sealed container, filled with gas under pressure, for example butane gas or a mixture of butane and propane gas, and provided, on its upper wall, with a pierceable portion to allow the supply of gas to the external user device; and - an outflow or safety valve positioned inside the container in order to at least limit the escape of gas in the event that the pierceable portion has been pierced and the can itself is not connected to the external user device.
In particolare, la valvola viene solitamente fissata all’interno del contenitore della bomboletta tramite una struttura di supporto incastrata tra la parete superiore del contenitore stesso e la sua parete laterale, su cui appoggia in corrispondenza di un apposito spallamento anulare interno. In particular, the valve is usually fixed inside the canister container by means of a support structure wedged between the upper wall of the container itself and its side wall, on which it rests at a special internal annular shoulder.
Tale soluzione risulta piuttosto complessa e soprattutto costosa in relazione al costo complessivo di commercializzazione delle bombolette di questo tipo. This solution is rather complex and above all expensive in relation to the overall cost of marketing the cans of this type.
E’ pertanto un’esigenza molto sentita in questo settore trovare dei sistemi alternativi di fissaggio della valvola, i quali risultino più semplici e meno costosi rispetto a quelli noti. It is therefore a deeply felt need in this sector to find alternative valve fixing systems, which are simpler and less expensive than the known ones.
WO 2015/092447 illustra una valvola di sicurezza per una bomboletta a gas fissata, mediante una sostanza adesiva o mediante un telaio di supporto, nell’intorno della porzione perforabile della parete superiore del contenitore della bomboletta a gas. WO 2015/092447 illustrates a safety valve for a gas cylinder fixed, by means of an adhesive substance or by means of a support frame, around the pierceable portion of the upper wall of the container of the gas cylinder.
In particolare, la valvola è realizzata interamente in materiale elasticamente flessibile e comprende una parte fissa, solidalmente collegata in uso alla parete superiore del contenitore ad eccezione di una pluralità di passaggi per il gas, ed una parte mobile a calotta, la quale è normalmente concava verso la porzione perforabile del contenitore e viene spinta in uso verso il basso da una porzione del dispositivo utilizzatore esterno dopo la perforazione della porzione perforabile della bomboletta a gas in modo da allargare i passaggi per il gas. In particular, the valve is made entirely of elastically flexible material and comprises a fixed part, solidly connected in use to the upper wall of the container with the exception of a plurality of gas passages, and a movable cap part, which is normally concave. towards the pierceable portion of the container and is pushed in use downwards by a portion of the external user device after piercing the pierceable portion of the gas cylinder so as to widen the gas passages.
In caso di distacco del dispositivo utilizzatore esterno dalla bomboletta, la parte mobile, spinta dalla pressione del gas, tende a flettersi verso l’alto cambiando la propria concavità in convessità ed andando a chiudere il foro realizzato nella porzione perforabile della bomboletta. Tuttavia, è stato sperimentato che la pressione del gas all’interno del contenitore della bomboletta non è in generale sufficiente a portare la parte mobile ad ostruire il foro della porzione perforabile, in quanto lo spostamento richiesto alla parte mobile è considerevole. In case of detachment of the external user device from the can, the moving part, pushed by the gas pressure, tends to bend upwards, changing its concavity into convexity and closing the hole made in the pierceable portion of the can. However, it has been found that the gas pressure inside the canister container is generally not sufficient to cause the movable part to obstruct the hole in the pierceable portion, as the displacement required for the movable part is considerable.
Scopo della presente invenzione è pertanto quello di realizzare una valvola di sicurezza per una bomboletta a gas, la quale soddisfi l’esigenza sopra menzionata e nel contempo permetta di ovviare agli inconvenienti delle soluzioni note e sopra specificati, in particolare consentendo in uso una chiusura efficace ed affidabile della bomboletta dopo il distacco del dispositivo utilizzatore esterno. The object of the present invention is therefore to provide a safety valve for a gas cylinder, which satisfies the aforementioned need and at the same time allows to overcome the drawbacks of the known and above-specified solutions, in particular by allowing effective closure in use. and reliable of the can after the detachment of the external user device.
Il suddetto scopo è raggiunto dalla presente invenzione, in quanto essa è relativa ad una valvola di sicurezza per una bomboletta a gas, come definita nella rivendicazione 1. The aforesaid object is achieved by the present invention, since it relates to a safety valve for a gas cylinder, as defined in claim 1.
La presente invenzione è altresì relativa ad una bomboletta a gas come definita nella rivendicazione 9. The present invention also relates to a gas canister as defined in claim 9.
Per una migliore comprensione della presente invenzione ne viene descritta nel seguito una preferita forma di attuazione, a puro titolo di esempio non limitativo e con riferimento ai disegni allegati, nei quali: For a better understanding of the present invention, a preferred embodiment is described below, purely by way of non-limiting example and with reference to the attached drawings, in which:
- la figura 1 illustra, in vista prospettica ed in parziale sezione, una bomboletta a gas provvista di una valvola di sicurezza realizzata secondo i dettami della presente invenzione; Figure 1 is a perspective view and in partial section of a gas cylinder provided with a safety valve made according to the dictates of the present invention;
- le figure 2 e 3 sono viste prospettiche in scala ingrandita e da lati opposti della valvola di sicurezza di figura 1; e Figures 2 and 3 are perspective views on an enlarged scale and from opposite sides of the safety valve of Figure 1; And
- le figure 4, 5 e 6 illustrano in scala ingrandita un dettaglio della bomboletta di figura 1, in tre diverse configurazioni operative. - Figures 4, 5 and 6 show on an enlarged scale a detail of the can of Figure 1, in three different operating configurations.
Con riferimento alla figura 1, è indicata nel suo complesso con 1 una bomboletta a gas comprendente un contenitore 2 sigillato riempito con gas in pressione, preferibilmente gas butano o una miscela di gas butano e propano, e provvisto, su una propria parete 3, ad esempio superiore, di una porzione perforabile 4 (visibile anche nelle figure 4, 5 e 6) per consentire l’alimentazione di gas ad un dispositivo utilizzatore 5 esterno (in sé noto ed illustrato schematicamente in figura 5), ad esempio barbecue, fornelli o lampade. With reference to Figure 1, the number 1 indicates as a whole a gas canister comprising a sealed container 2 filled with gas under pressure, preferably butane gas or a mixture of butane and propane gas, and provided, on its own wall 3, with upper example, of a pierceable portion 4 (also visible in Figures 4, 5 and 6) to allow the supply of gas to an external user device 5 (per se known and schematically illustrated in Figure 5), for example barbecues, stoves or lamps.
Come visibile in figura 1, il contenitore 2 ha preferibilmente una conformazione approssimativamente cilindrica di asse A. Più precisamente, il contenitore 2 è delimitato, oltre che dalla parete 3 superiore, avente un profilo circolare, da una parete 6 inferiore, sostanzialmente conformata a disco, e da una parete 7 laterale approssimativamente cilindrica. As can be seen in Figure 1, the container 2 preferably has an approximately cylindrical conformation of axis A. More precisely, the container 2 is delimited, in addition to the upper wall 3, having a circular profile, by a lower wall 6, substantially shaped like a disc. , and an approximately cylindrical side wall 7.
La parete 3 superiore è leggermente convessa verso l’esterno e presenta un’impronta circolare centrale, convessa verso l’interno del contenitore 2 e definente la porzione perforabile 4. The upper wall 3 is slightly convex towards the outside and has a central circular imprint, convex towards the inside of the container 2 and defining the pierceable portion 4.
La bomboletta 1 comprende, inoltre, una valvola 10 limitatrice di efflusso o di sicurezza (visibile in tutte le figure allegate), realizzata secondo i dettami della presente invenzione e posizionata all’interno del contenitore 2 in modo da almeno limitare la fuoriuscita di gas nel caso in cui la porzione perforabile 4 sia stata forata e la bomboletta 1 stessa non sia collegata al dispositivo utilizzatore 5. The canister 1 also comprises an outflow or safety limiting valve 10 (visible in all the attached figures), made according to the dictates of the present invention and positioned inside the container 2 so as to at least limit the escape of gas in the case in which the pierceable portion 4 has been pierced and the can 1 itself is not connected to the user device 5.
La valvola 10 è fissata, unicamente mediante una sostanza adesiva (non visibile nelle figure allegate), alla parete 3 del contenitore 2 in un intorno della porzione perforabile 4. The valve 10 is fixed, solely by means of an adhesive substance (not visible in the attached figures), to the wall 3 of the container 2 in a surrounding of the pierceable portion 4.
Si precisa che nella presente descrizione e nelle rivendicazioni, il termine “intorno” è utilizzato sia per indicare il bordo periferico della porzione perforabile 4 sia l’area anulare immediatamente circostante la porzione perforabile 4 stessa. It should be noted that in the present description and in the claims, the term "around" is used both to indicate the peripheral edge of the pierceable portion 4 and the annular area immediately surrounding the pierceable portion 4 itself.
Nell’esempio di attuazione illustrato nelle figure 1, la sostanza adesiva è applicata nell’intorno della porzione perforabile 4 ed è interposta tra la valvola 10 e la parete 3. Preferibilmente, la sostanza adesiva viene applicata in più punti spaziati tra loro. In the example of implementation illustrated in Figures 1, the adhesive substance is applied around the pierceable portion 4 and is interposed between the valve 10 and the wall 3. Preferably, the adhesive substance is applied in several points spaced apart.
La sostanza adesiva utilizzata è preferibilmente una colla acrilica che, a seguito di diversi esperimenti condotti dalla Richiedente, si è dimostrata adatta a creare un collegamento particolarmente duraturo nell’ambiente di tipo secco definito dal gas butano o dalla miscela di gas propano e butano. The adhesive substance used is preferably an acrylic glue which, following several experiments conducted by the Applicant, has proved suitable for creating a particularly long-lasting connection in the dry environment defined by butane gas or by the mixture of propane and butane gas.
La valvola 10 è interamente realizzata in un materiale elasticamente deformabile, ad esempio gomma, ed è fissata al contenitore 2 con un proprio asse centrale coassiale all’asse A (figure 1, 4, 5 e 6). The valve 10 is entirely made of an elastically deformable material, such as rubber, and is fixed to the container 2 with its own central axis coaxial to axis A (Figures 1, 4, 5 and 6).
La descrizione che segue della valvola 10 verrà effettuata, per semplicità e per ragioni di chiarezza, con riferimento alla posizione di montaggio della valvola 10 stessa all’interno del contenitore 2, senza che questo debba essere inteso con fini limitativi. The following description of the valve 10 will be carried out, for simplicity and for reasons of clarity, with reference to the mounting position of the valve 10 itself inside the container 2, without this being intended for limiting purposes.
Con riferimento alle figure allegate, la valvola 10 comprende una parte fissa 11 ed una parte mobile 12 che costituiscono insieme un componente unico. With reference to the attached figures, the valve 10 comprises a fixed part 11 and a movable part 12 which together constitute a single component.
La parte fissa 11 comprende una flangia 13 anulare di asse A fissata in uso all’interno del contenitore 2 intorno alla porzione perforabile 4. Nell’esempio illustrato, la flangia 13 si estende sostanzialmente lungo un piano ortogonale all’asse A. The fixed part 11 includes an annular flange 13 of axis A fixed in use inside the container 2 around the pierceable portion 4. In the example shown, the flange 13 extends substantially along a plane orthogonal to axis A.
La parte mobile 12 della valvola 10 si estende a sbalzo dalla flangia 13 ed è elasticamente mobile rispetto a quest’ultima lungo l’asse A. The mobile part 12 of the valve 10 extends overhanging from the flange 13 and is elastically mobile with respect to the latter along the axis A.
Vantaggiosamente, la parte mobile 12 comprende una porzione di tenuta 14, la quale è disposta in posizione radialmente più interna rispetto alla flangia 13 con riferimento all’asse A ed è caricata elasticamente in una prima direzione R lungo l’asse A stesso per cooperare in uso contro la parete 3 del contenitore 2 nell’intorno della porzione perforabile 4 in modo da definire una condizione normale di tenuta (figure 1, 4 e 6), in cui almeno limita l’efflusso di gas verso la porzione perforabile 4 stessa; la porzione di tenuta 14 è inoltre spostabile in uso, per effetto di un’azione di spinta esterna, esercitata nel caso specifico dal dispositivo utilizzatore 5, in una seconda direzione T lungo l’asse A, opposta alla direzione R, per definire una condizione di apertura (figura 5), in cui la porzione di tenuta 14 stessa è allontanata assialmente dalla parete 3. Advantageously, the movable part 12 comprises a sealing portion 14, which is arranged in a radially more internal position with respect to the flange 13 with reference to the axis A and is elastically loaded in a first direction R along the axis A itself to cooperate in use against the wall 3 of the container 2 around the pierceable portion 4 so as to define a normal sealing condition (Figures 1, 4 and 6), in which at least it limits the outflow of gas towards the pierceable portion 4 itself; the sealing portion 14 can also be displaced in use, due to an external thrust action, exerted in the specific case by the user device 5, in a second direction T along the axis A, opposite to the direction R, to define a condition opening (Figure 5), in which the sealing portion 14 itself is axially distanced from the wall 3.
La parte mobile 12 comprende, inoltre, una pluralità di petali 15 angolarmente equispaziati tra loro intorno all’asse A, delimitanti tra loro rispettive finestre 16 passanti e colleganti la flangia 13 alla porzione di tenuta 14. The movable part 12 also comprises a plurality of petals 15 angularly equidistant to each other around the axis A, delimiting their respective through windows 16 and connecting the flange 13 to the sealing portion 14.
In particolare, la porzione di tenuta 14 comprende una regione centrale 18 piena, nella fattispecie illustrata costituita da un disco piano ortogonale all’asse A, ed un elemento tubolare 19, sporgente a sbalzo dalla periferia della regione centrale 18 lungo l’asse A e configurato per cooperare a contatto, in corrispondenza di una propria porzione di estremità 20 libera, con la parete 3 del contenitore 2. In particular, the sealing portion 14 comprises a solid central region 18, in the case illustrated consisting of a flat disk orthogonal to the axis A, and a tubular element 19, projecting cantilevered from the periphery of the central region 18 along the axis A and configured to cooperate in contact, in correspondence with its own free end portion 20, with the wall 3 of the container 2.
Si precisa che, nella presente descrizione e nelle rivendicazioni, i termini “anulare” e “tubolare” sono intesi nel loro significato più ampio, ossia per designare elementi o porzioni a profilo chiuso (“endless” in inglese), non necessariamente circolare ma anche ovale, poligonale, ecc. It should be noted that, in the present description and in the claims, the terms "annular" and "tubular" are intended in their broadest meaning, ie to designate elements or portions with a closed profile ("endless" in English), not necessarily circular but also oval, polygonal, etc.
Come visibile in particolare nelle figure da 4 a 6, ciascun petalo 15 e la porzione della flangia 13 su cui tale petalo 15 insiste presentano, nel loro complesso, sostanzialmente una conformazione a S in una sezione trasversale condotta lungo un piano passante per l’asse A. As can be seen in particular in Figures 4 to 6, each petal 15 and the portion of the flange 13 on which said petal 15 insists have, as a whole, substantially an S-shaped conformation in a cross section conducted along a plane passing through the axis TO.
In pratica, ciascun petalo 15 si estende dalla porzione di tenuta 14 a partire da una zona della stessa spaziata dalla porzione di estremità 20 libera lungo l’asse A. In practice, each petal 15 extends from the sealing portion 14 starting from an area of the same spaced from the free end portion 20 along the axis A.
In dettaglio, ciascun petalo 15 collega un bordo perimetrale 21 della regione centrale 18 con un bordo perimetrale 22 radialmente più interno della flangia 13. In detail, each petal 15 connects a perimeter edge 21 of the central region 18 with a perimeter edge 22 radially innermost of the flange 13.
Ciascun petalo 15 comprende, inoltre, un tratto di estremità 23, sporgente a sbalzo dalla parte opposta della regione centrale 18 rispetto all’elemento tubolare 19 ed avente una configurazione curvilinea, ed un tratto principale 24 sostanzialmente rettilineo, avente un andamento obliquo rispetto all’asse A. Each petal 15 also comprises an end portion 23, projecting cantilevered from the opposite part of the central region 18 with respect to the tubular element 19 and having a curvilinear configuration, and a main portion 24 substantially rectilinear, having an oblique course with respect to the axis A.
In uso, la bomboletta 1 deve essere forata in corrispondenza della porzione perforabile 4 per poter alimentare con il gas il dispositivo utilizzatore 5; quest’ultimo presenta una canna tubolare 8 di estremità che penetra all’interno del contenitore 2 dopo la perforazione e va ad agire a spinta lungo l’asse A nella direzione T sulla regione centrale 18 della valvola 10. In questo modo, la parte mobile 12 trasla lungo l’asse A verso l’interno del contenitore 2 nella direzione T con conseguente distacco della porzione di estremità 20 libera dell’elemento tubolare 19 dalla parete 3; nel contempo, i petali 15 tendono ad aprirsi uno rispetto all’altro allargando le finestre 16. Il gas all’interno del contenitore 2 può quindi fluire verso la canna tubolare 8 del dispositivo utilizzatore 5 passando prima attraverso le finestre 16 e poi nello spazio tra la porzione di estremità 20 libera dell’elemento tubolare 19 e la parete 3. In use, the can 1 must be perforated in correspondence with the pierceable portion 4 in order to be able to supply the user device 5 with gas; the latter has a tubular end barrel 8 which penetrates inside the container 2 after perforation and pushes along the axis A in the direction T on the central region 18 of the valve 10. In this way, the movable part 12 moves along the axis A towards the inside of the container 2 in the direction T with consequent detachment of the free end portion 20 of the tubular element 19 from the wall 3; at the same time, the petals 15 tend to open relative to each other, widening the windows 16. The gas inside the container 2 can then flow towards the tubular pipe 8 of the user device 5 passing first through the windows 16 and then into the space between the free end portion 20 of the tubular element 19 and the wall 3.
Nel caso in cui il contenitore 2 già forato ma ancora almeno parzialmente pieno di gas venga distaccato dal dispositivo utilizzatore 5, la valvola 10 consente di almeno limitare la fuoriuscita di gas dalla bomboletta 1. In the event that the container 2 already perforated but still at least partially full of gas is detached from the user device 5, the valve 10 allows at least limiting the escape of gas from the bottle 1.
In questo caso, infatti, la parte mobile 12, non più mantenuta nella condizione di apertura dalla canna tubolare 8, ritorna verso la parete 3 lungo la direzione R per effetto della propria elasticità e sotto la spinta della pressione residua del gas all’interno del contenitore 2, maggiore rispetto alla pressione atmosferica. In this case, in fact, the mobile part 12, no longer maintained in the open condition by the tubular barrel 8, returns towards the wall 3 along the direction R due to its own elasticity and under the thrust of the residual pressure of the gas inside the container 2, higher than atmospheric pressure.
Da un esame delle caratteristiche della valvola 10 e della bomboletta 1 realizzate secondo la presente invenzione sono evidenti i vantaggi che essa consente di ottenere. From an examination of the characteristics of the valve 10 and of the can 1 made according to the present invention, the advantages that it allows to be obtained are evident.
In particolare, il fissaggio della valvola 10 alla parete 3 superiore del contenitore 2 della bomboletta 1 può avvenire mediante la semplice applicazione di punti di sostanza adesiva sulla flangia 13, senza necessità di dispositivi addizionali da inserire all’interno del contenitore 2 stesso. Inoltre, poiché la funzione di tenuta al gas viene realizzata dall’elemento tubolare 19, posto radialmente in posizione più interna rispetto alla flangia 13 rispetto all’asse A, non è necessario disporre un anello continuo di sostanza adesiva sulla flangia 13 stessa. In particular, the fixing of the valve 10 to the upper wall 3 of the container 2 of the canister 1 can be done by simply applying points of adhesive substance on the flange 13, without the need for additional devices to be inserted inside the container 2 itself. Furthermore, since the gas sealing function is carried out by the tubular element 19, placed radially in a more internal position with respect to the flange 13 with respect to the axis A, it is not necessary to have a continuous ring of adhesive substance on the flange 13 itself.
Infine, grazie alla struttura della valvola 10, il passaggio dalla condizione di apertura a quella normale di tenuta richiede un piccolo spostamento della parte mobile 12, ed in particolare dell’elemento tubolare 19, lungo l’asse A; poiché tale spostamento di modesta entità può essere di per sé assicurato dalla sola elasticità intrinseca del materiale costituente la parte mobile 12, la presenza di una pressione residua all’interno del contenitore 2, superiore alla pressione atmosferica, ha il solo effetto di incrementare ulteriormente l’efficacia della tenuta. Finally, thanks to the structure of the valve 10, the transition from the opening condition to the normal sealing condition requires a small displacement of the mobile part 12, and in particular of the tubular element 19, along the axis A; since this modest displacement can in itself be ensured by the intrinsic elasticity of the material constituting the movable part 12 alone, the presence of a residual pressure inside the container 2, higher than atmospheric pressure, has the sole effect of further increasing the effectiveness of the seal.
Pertanto, nel caso di distacco della bomboletta 1 ancora piena dal dispositivo utilizzatore 5, la valvola 10, è in grado di controllare in modo efficace ed affidabile la fuoriuscita del gas residuo dal contenitore 2. Therefore, in the case of detachment of the still full can 1 from the user device 5, the valve 10 is able to effectively and reliably control the leakage of the residual gas from the container 2.
Risulta chiaro che alla valvola 10 e alla bomboletta 1 qui descritte ed illustrate possono essere apportate modifiche e varianti senza per questo uscire dall’ambito di protezione definito dalle rivendicazioni. It is clear that modifications and variations may be made to the valve 10 and the can 1 described and illustrated here without thereby departing from the scope of protection defined by the claims.
Claims (10)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT102018000009658A IT201800009658A1 (en) | 2018-10-22 | 2018-10-22 | SAFETY VALVE FOR ONE GAS BOTTLE AND GAS BOTTLE INCLUDING THIS VALVE |
ES19204706T ES2941522T3 (en) | 2018-10-22 | 2019-10-22 | Gas bottle that includes a safety valve |
EP19204706.6A EP3643959B1 (en) | 2018-10-22 | 2019-10-22 | Gas bottle including a safety valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT102018000009658A IT201800009658A1 (en) | 2018-10-22 | 2018-10-22 | SAFETY VALVE FOR ONE GAS BOTTLE AND GAS BOTTLE INCLUDING THIS VALVE |
Publications (1)
Publication Number | Publication Date |
---|---|
IT201800009658A1 true IT201800009658A1 (en) | 2020-04-22 |
Family
ID=65244475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT102018000009658A IT201800009658A1 (en) | 2018-10-22 | 2018-10-22 | SAFETY VALVE FOR ONE GAS BOTTLE AND GAS BOTTLE INCLUDING THIS VALVE |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3643959B1 (en) |
ES (1) | ES2941522T3 (en) |
IT (1) | IT201800009658A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT202100004934A1 (en) * | 2021-03-03 | 2022-09-03 | Plein Air Int S R L | CARTRIDGE FOR A FLUID UNDER PRESSURE |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1406041A2 (en) * | 2002-10-03 | 2004-04-07 | Guilbert Express S.A. | Security device for puncturable cartridge |
WO2015092447A1 (en) | 2013-12-19 | 2015-06-25 | Coral Gas A.E.B.E.Y. | Internal leak limiter for a pressurised-gas container |
GR1008914B (en) * | 2015-06-03 | 2016-12-21 | Παναγιωτης Σταυρου Νατσης | Crown hindering the liquid gas from escaping from gas cylinders |
GR20150100357A (en) * | 2015-08-11 | 2017-04-10 | Νικολαος Μπαζιγος Ανωνυμη Βιοτεχνικη Και Εμπορικη Εταιρεια Κατασκευης Καλουπιων Και Εξαρτηματων Ακριβειας | Telescopic vlave for preventing the liquid gas escape from gas cylinders |
EP3287686A1 (en) * | 2016-08-24 | 2018-02-28 | Special Components S.r.l. | Gas bottle |
-
2018
- 2018-10-22 IT IT102018000009658A patent/IT201800009658A1/en unknown
-
2019
- 2019-10-22 ES ES19204706T patent/ES2941522T3/en active Active
- 2019-10-22 EP EP19204706.6A patent/EP3643959B1/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1406041A2 (en) * | 2002-10-03 | 2004-04-07 | Guilbert Express S.A. | Security device for puncturable cartridge |
WO2015092447A1 (en) | 2013-12-19 | 2015-06-25 | Coral Gas A.E.B.E.Y. | Internal leak limiter for a pressurised-gas container |
GR1008914B (en) * | 2015-06-03 | 2016-12-21 | Παναγιωτης Σταυρου Νατσης | Crown hindering the liquid gas from escaping from gas cylinders |
GR20150100357A (en) * | 2015-08-11 | 2017-04-10 | Νικολαος Μπαζιγος Ανωνυμη Βιοτεχνικη Και Εμπορικη Εταιρεια Κατασκευης Καλουπιων Και Εξαρτηματων Ακριβειας | Telescopic vlave for preventing the liquid gas escape from gas cylinders |
EP3287686A1 (en) * | 2016-08-24 | 2018-02-28 | Special Components S.r.l. | Gas bottle |
Also Published As
Publication number | Publication date |
---|---|
EP3643959B1 (en) | 2023-01-04 |
EP3643959A1 (en) | 2020-04-29 |
ES2941522T3 (en) | 2023-05-23 |
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