ES2245589B1 - Safety valve for pressurized aerosol can, has spring-loaded ball supported on conduit of aerosol can to open orifice of plug at conduit end when can internal pressure exceeds maximum established value - Google Patents

Safety valve for pressurized aerosol can, has spring-loaded ball supported on conduit of aerosol can to open orifice of plug at conduit end when can internal pressure exceeds maximum established value

Info

Publication number
ES2245589B1
ES2245589B1 ES200400667A ES200400667A ES2245589B1 ES 2245589 B1 ES2245589 B1 ES 2245589B1 ES 200400667 A ES200400667 A ES 200400667A ES 200400667 A ES200400667 A ES 200400667A ES 2245589 B1 ES2245589 B1 ES 2245589B1
Authority
ES
Spain
Prior art keywords
conduit
valve
spring
aerosol
plug
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 - Fee Related
Application number
ES200400667A
Other languages
Spanish (es)
Other versions
ES2245589A1 (en
Inventor
Marcelo Lima Merino
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.)
ANCELL S L PROD
PRODUCTOS ANCELL SL
Original Assignee
ANCELL S L PROD
PRODUCTOS ANCELL SL
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 ANCELL S L PROD, PRODUCTOS ANCELL SL filed Critical ANCELL S L PROD
Priority to ES200400667A priority Critical patent/ES2245589B1/en
Publication of ES2245589A1 publication Critical patent/ES2245589A1/en
Application granted granted Critical
Publication of ES2245589B1 publication Critical patent/ES2245589B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/168—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side combined with manually-controlled valves, e.g. a valve combined with a safety valve

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

A spring, with one end supported within the conduit of an aerosol can via crank, has another end pressed against a ball, which in turn normally closes the orifice of a plug at the conduit end. When the internal pressure of the can exceeds a maximum established value, the ball counters the spring force and opens the orifice, providing pressure relief.

Description

Válvula de seguridad para envases tipo aerosol.Safety valve for type containers aerosol.

Objeto de la invenciónObject of the invention

La presente invención se refiere a una válvula de las utilizadas en envases tipo aerosol, es decir en envases cuyo contenido está debidamente presurizado para salida automática al exterior del mismo cuando se produce la apertura valvular, válvula que ha sido concebida y estructurada en orden a garantizar la seguridad del envase, evitando que se produzcan sobrepresiones anómalas en el interior del mismo, que pudieran generar el estallido del envase, con el consecuente riesgo de accidentes.The present invention relates to a valve those used in aerosol containers, that is, in containers whose content is properly pressurized for automatic exit to outside of it when valve opening occurs, valve which has been conceived and structured in order to guarantee the container safety, preventing overpressures from occurring anomalous inside it, which could generate the outbreak of the container, with the consequent risk of accidents.

Así pues, el objeto de la invención es conseguir una válvula para envases tipo aerosol que garantice que la presión en el interior de dicho envase no pueda sobrepasar, bajo ninguna circunstancia, el nivel máximo preestablecido para la misma.Thus, the object of the invention is to achieve a valve for aerosol containers that ensures that the pressure inside said container it cannot exceed, under any circumstance, the maximum level preset for it.

Antecedentes de la invenciónBackground of the invention

Como es sabido, los envases tipo aerosol están dotados de una válvula, generalmente establecida en el cabezal de cierre del cuerpo del envase, la cual tiende permanentemente a la situación de cierre por efecto de la propia presión existente en el cuerpo, y se abre manualmente cuando se actúa sobre el correspondiente pulsador durante la normal utilización del envase.As is known, aerosol containers are equipped with a valve, generally established in the head of closure of the container body, which tends permanently to the closing situation due to the actual pressure in the body, and opens manually when acting on the corresponding button during normal use of the container.

Aunque el cuerpo de estos envases está debidamente calculado para soportar no sólo su presión normal de trabajo sino una presión sensiblemente superior, en ocasiones se producen acusados incrementos en la presión nominal, debidos a también acusados incrementos en la temperatura medioambiental o a otras causas, lo que a veces genera el estallido del envase, con las consecuentes y negativas repercusiones que ello trae consigo, puesto que la explosión genera bien la fragmentación del cuerpo o el desprendimiento brusco del cabezal de cierre, actuando de forma similar a como lo hace la metralla en una explosión clásica.Although the body of these containers is properly calculated to withstand not only its normal pressure of work but a significantly higher pressure, sometimes it they produce marked increases in nominal pressure, due to also marked increases in ambient temperature or at other causes, which sometimes generates the burst of the container, with the consequent and negative repercussions that this brings, since the explosion generates either the fragmentation of the body or the  abrupt detachment of the closing head, acting so similar to how shrapnel does in a classic explosion.

Descripción de la invenciónDescription of the invention

La válvula de seguridad que la invención propone ha sido concebida en orden a resolver de forma plenamente satisfactoria la problemática anteriormente expuesta, haciendo de todo punto imposible que la presión en el seno del recipiente sobrepase un valor preestablecido al efecto y, en consecuencia, evitando que pueda producirse el estallido del mismo.The safety valve proposed by the invention It has been conceived in order to fully resolve satisfactory the aforementioned problem, making any point impossible that the pressure inside the vessel exceed a preset value for that purpose and, consequently, preventing its outbreak from occurring.

Para ello y de forma más concreta, la válvula de la invención, provista de un cabezal de cierre sobre el cuerpo de cualquier tipo convencional y de una válvula propiamente dicha también de cualquier tipo convencional, centra sus características en el hecho de que en el citado cabezal de cierre se establece un conducto que comunica el interior del envase con el exterior, preferentemente con un tramo paralelo al eje del cabezal, sobre el que habitualmente se sitúa la válvula propiamente dicha, y un segundo tramo acodado ortogonalmente hacia afuera, que emerge radialmente del cabezal por fuera del cuerpo del envase, estableciéndose en el primer tramo un sector roscado correspondiente a la extremidad interna del cabezal, a través del que se acopla al mismo un tapón dotado de un conducto axial, de diámetro considerablemente menor que el del orificio anteriormente citado, tapón que permite el montaje en el interior del primer conducto de un muelle que presiona permanentemente una bola contra la embocadura del conducto del tapón, con interposición de una junta tórica, constituyendo muelle y bola una válvula unidireccional que tiende permanentemente a la situación de cierre, y estando el citado muelle debidamente tarado para que su tensión sea vencida por la presión interior del envase, cuando ésta sobrepasa, por cualquier circunstancia, el valor máximo preestablecido, lo que supone una descarga parcial del contenido del envase, hasta la recuperación de la presión
nominal.For this purpose and more specifically, the valve of the invention, provided with a closure head on the body of any conventional type and a valve itself of any conventional type, focuses its characteristics on the fact that in the aforementioned The closing head establishes a conduit that communicates the inside of the container with the outside, preferably with a section parallel to the axis of the head, on which the valve itself is usually located, and a second section orthogonally angled outwards, which emerges radially of the head outside the body of the container, establishing in the first section a threaded sector corresponding to the inner end of the head, through which a cap provided with an axial conduit, of diameter considerably smaller than that of the hole previously is attached thereto cited, plug that allows mounting inside the first duct of a spring that permanently presses a a ball against the mouth of the plug duct, with the interposition of an O-ring, a spring and ball constituting a unidirectional valve that tends permanently to the closing situation, and said spring being properly tared so that its tension is overcome by the internal pressure of the container, when it exceeds, for any circumstance, the maximum preset value, which means a partial discharge of the contents of the container, until the pressure is recovered
nominal.

Una junta tórica asegura la estanqueidad de la bola sobre el frente del tapón, a la vez que una segunda junta tórica, opcional, asegura a su vez la estanqueidad del tapón con respecto al cabezal de cierre del cuerpo.An O-ring ensures the tightness of the ball on the front of the cap, while a second joint O-ring, optional, in turn ensures the tightness of the cap with with respect to the closing head of the body.

Descripción de los dibujosDescription of the drawings

Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características del invento, de acuerdo con un ejemplo preferente de realización práctica del mismo, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente:To complement the description that is being performing and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization of it, is accompanied as part member of that description, a set of drawings where with illustrative and non-limiting nature, what has been represented next:

La figura 1.- Muestra, según una vista en alzado lateral, una válvula de seguridad para envases tipo aerosol realizada de acuerdo con el objeto de la presente invención.Figure 1.- Shows, according to an elevation view side, a safety valve for aerosol containers performed in accordance with the object of the present invention.

La figura 2.- Muestra un detalle en sección transversal de la válvula de la figura anterior, de acuerdo con la línea de corte A-B de dicha figura.Figure 2.- Shows a detail in section cross section of the valve in the previous figure, according to the A-B cutting line of said figure.

Realización preferente de la invenciónPreferred Embodiment of the Invention

A la vista de las figuras reseñadas puede observarse como la válvula para envases tipo aerosol que la invención propone está constituida, como cualquier válvula convencional para este tipo de envases, por un cabezal (1) de cierre sobre el cuerpo del envase, no representado en los dibujos, que cuenta para la fijación a la embocadura de este último con una pestaña perimetral (2) estrangulable sobre dicha embocadura, o con cualquier otro medio de fijación y cierre apropiado, y a que su vez incorpora un alojamiento axial (3) en el que se establece la válvula propiamente dicha, cuya estructura no es preciso detallar por cuanto que la representación gráfica de la figura 2 es meramente ejemplaria y puede tratarse de cualquier dispositivo valvular apropiado a la aplicación específica de cada caso.In view of the figures outlined you can be seen as the valve for aerosol containers that the proposed invention is constituted, like any valve conventional for this type of packaging, by a head (1) of closure on the body of the container, not shown in the drawings, that counts for the attachment to the mouth of the latter with a perimeter flange (2) throttled on said mouthpiece, or with any other appropriate means of fixing and closing, and in turn incorporates an axial housing (3) in which the valve itself, whose structure does not need to be detailed since the graphic representation of figure 2 is merely exemplary and can be any device Valve appropriate to the specific application of each case.

De acuerdo ya con la invención en el citado cabezal de cierre (1) se establece un conducto (4), con un tramo mayoritario y paralelo al eje de dicho cabezal (1), que sufre un acodamiento ortogonal (4') en su extremidad externa para acceder directamente al exterior a través de un pequeño orifico (5), especialmente visible en la figura 1, preferentemente situado en el fondo de una garganta perimetral (6).In accordance with the invention mentioned above closing head (1) a conduit (4) is established, with a section majority and parallel to the axis of said head (1), which suffers a orthogonal bending (4 ') at its outer extremity to access directly outside through a small hole (5), especially visible in figure 1, preferably located in the bottom of a perimeter throat (6).

El citado acodamiento (4') del conducto (4) define el asiento para un muelle (7) que se aloja en el tramo mayoritario (4) de dicho orificio y que está destinado a mantener permanentemente presionada, en condiciones normales, una bola de cierre (8) sobre el orificio axial (9) de un tapón (10), acoplable mediante rosca (11) a la embocadura inferior del citado conducto (4), concretamente en un sector sustancialmente ensanchado del mismo.The said bend (4 ') of the duct (4) defines the seat for a spring (7) that is housed in the section majority (4) of said hole and which is intended to maintain permanently pressed, under normal conditions, a ball of closure (8) on the axial hole (9) of a plug (10), attachable by means of thread (11) to the lower opening of said conduit (4), specifically in a substantially widened sector of the same.

Obviamente el diámetro del orificio (9) es considerablemente menor que el del conducto (4), para que la bola (8) pueda cumplir su función de elemento obturador, concretamente contra un asiento valvular definido por una junta tórica (12).Obviously the diameter of the hole (9) is considerably smaller than that of the duct (4), so that the ball (8) can fulfill its function as a shutter element, specifically against a valve seat defined by an O-ring (12).

El tapón (10) está provisto de una cabeza poligonal (13) para facilitar su apriete sobre el cabezal de cierre (1), de manera que dicho apriete puede ser por sí solo sobradamente suficiente para asegurar la estanqueidad en el acoplamiento de estos elementos, la cual puede no obstante ser potenciada mediante una segunda junta tórica (14) implantada a su vez en una garganta perimetral (15) existente en el tornillo (10) junto a su cabeza (13).The plug (10) is provided with a head polygonal (13) to facilitate its tightening on the closing head (1), so that said tightening can be by itself excessively enough to ensure the tightness in the coupling of these elements, which can nevertheless be enhanced by a second o-ring (14) in turn implanted in a throat perimeter (15) existing in the screw (10) next to its head (13).

De acuerdo con esta estructuración la presión existente en el interior del cuerpo del envase afecta permanentemente al orificio (9) del tapón y consecuentemente a la bola obturadora (8), y ésta mantendrá su situación de cierre en tanto dicha presión no sobrepase la tensión del muelle (7), es decir en tanto la presión en el interior del cuerpo del envase no sobrepase el valor límite preestablecido al efecto por el tarado del muelle (7), pero cuando por cualquier causa dicha presión sobrepase tal valor límite, se producirá la retracción del muelle (7), separación de la bola (8) de su asiento valvular (12) y la consecuente salida al exterior, a través del orificio (5), de parte del gas contenido en el envase, hasta que se produce la bajada de presión suficiente como para alcanzar el valor nominal de la misma, momento en el que se produce automáticamente el cierre de la bola obturadora (8) por efecto del muelle (7).According to this structuring the pressure existing inside the container body affects permanently to the hole (9) of the plug and consequently to the shutter ball (8), and this will keep its closing situation in as long as said pressure does not exceed the tension of the spring (7), that is to say as long as the pressure inside the container body does not exceed the preset limit value for this purpose by setting the spring (7), but when for any reason such pressure exceeds such limit value, spring retraction (7) will occur, separation of the ball (8) from its valve seat (12) and the consequent exit to the outside, through the hole (5), on the part of the gas contained in the container, until the descent of sufficient pressure to reach its nominal value, moment when the closing of the ball occurs automatically shutter (8) by spring effect (7).

Ello supone, como anteriormente se ha dicho, eliminar por completo el riesgo de que se produzca un estallido del envase, por sobrepresión en el interior del mismo.This implies, as previously stated, completely eliminate the risk of an outbreak of the container, by overpressure inside it.

Claims (3)

1. Válvula de seguridad para envases tipo aerosol, del tipo de los que incorporan un cabezal de cierre, portador de la válvula propiamente dicha, dotado de medios de fijación a la embocadura del cuerpo del envase, caracterizada porque en disposición lateral con respecto a la válvula propiamente dicha incorpora una válvula unidireccional (7-8), capacitada para comunicar el interior del envase con el exterior del mismo, provista de un muelle (7) que tiende permanentemente a la situación de cierre de la misma y que está convenientemente tarado para que la apertura de esta válvula auxiliar se produzca cuando la presión en el interior del envase sobrepasa un valor máximo preestablecido, permitiendo la salida de gas al exterior del mismo hasta recuperar la presión nominal.1. Safety valve for aerosol containers, of the type that incorporate a closing head, the carrier of the valve itself, provided with fixing means to the mouth of the container body, characterized in that in lateral arrangement with respect to the The valve itself incorporates a unidirectional valve (7-8), capable of communicating the inside of the container with the outside of it, provided with a spring (7) that tends permanently to the closing situation of the same and that is conveniently set for that the opening of this auxiliary valve occurs when the pressure inside the container exceeds a preset maximum value, allowing gas to escape outside it until the nominal pressure is recovered. 2. Válvula de seguridad para envases tipo aerosol, según reivindicación 1ª, caracterizada porque la citada válvula auxiliar se establece en el seno de un conducto (4), con un tramo mayoritario paralelo al eje del cabezal de cierre (1), abierto hacia el interior de dicho cabezal y con un acodamiento (4') en su extremidad opuesta, la de comunicación al exterior a través de un orificio (5), constituyendo dicho acodamiento la base de apoyo para el muelle (7), que por su extremo interno apoya sobre una bola (8) presionándola contra un asiento valvular (12), preferentemente materializado en una junta tórica, asociada a un tapón (10) que se fija mediante rosca en la extremidad interna y de mayor diámetro del citado conducto (4), contando el citado tapón (10) con un orificio axial (9) de menor diámetro, enfrentado a la citada bola (8).2. Safety valve for aerosol containers, according to claim 1, characterized in that said auxiliary valve is established within a conduit (4), with a majority section parallel to the axis of the closing head (1), open towards the inside said head and with a bend (4 ') at its opposite end, that of communication to the outside through a hole (5), said bend forming the support base for the spring (7), which at its inner end it rests on a ball (8) pressing it against a valve seat (12), preferably materialized in an O-ring, associated with a plug (10) that is fixed by means of a thread in the internal end and of greater diameter of said conduit (4), counting said stopper (10) with an axial bore (9) of smaller diameter, facing said ball (8). 3. Válvula de seguridad para envases tipo aerosol, según reivindicaciones anteriores, caracterizada porque el citado tapón (10) cuenta con una cabeza poligonal (13) para apriete del mismo sobre el cabezal de cierre (1), con interposición de una junta tórica (14) parcialmente establecida en una garganta perimetral (13) del tapón (10).3. Safety valve for aerosol containers, according to previous claims, characterized in that said stopper (10) has a polygonal head (13) for tightening it on the closing head (1), with interposition of an O-ring ( 14) partially established in a perimeter throat (13) of the plug (10).
ES200400667A 2004-03-17 2004-03-17 Safety valve for pressurized aerosol can, has spring-loaded ball supported on conduit of aerosol can to open orifice of plug at conduit end when can internal pressure exceeds maximum established value Expired - Fee Related ES2245589B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES200400667A ES2245589B1 (en) 2004-03-17 2004-03-17 Safety valve for pressurized aerosol can, has spring-loaded ball supported on conduit of aerosol can to open orifice of plug at conduit end when can internal pressure exceeds maximum established value

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200400667A ES2245589B1 (en) 2004-03-17 2004-03-17 Safety valve for pressurized aerosol can, has spring-loaded ball supported on conduit of aerosol can to open orifice of plug at conduit end when can internal pressure exceeds maximum established value

Publications (2)

Publication Number Publication Date
ES2245589A1 ES2245589A1 (en) 2006-01-01
ES2245589B1 true ES2245589B1 (en) 2006-11-01

Family

ID=35614419

Family Applications (1)

Application Number Title Priority Date Filing Date
ES200400667A Expired - Fee Related ES2245589B1 (en) 2004-03-17 2004-03-17 Safety valve for pressurized aerosol can, has spring-loaded ball supported on conduit of aerosol can to open orifice of plug at conduit end when can internal pressure exceeds maximum established value

Country Status (1)

Country Link
ES (1) ES2245589B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3005577A (en) * 1959-10-28 1961-10-24 Otto Bernz Co Inc Combination dispensing and excess pressure relief valve
US3638840A (en) * 1969-07-09 1972-02-01 Mitsuo Ishida Safety valve for aerosol containers
US4030644A (en) * 1976-02-26 1977-06-21 John Joseph Creighton Non-return safety valve assembly and pressure pack incorporating same
KR20040071484A (en) * 2003-02-06 2004-08-12 장준혁 Over pressure safety apparatus of aerosol cans

Also Published As

Publication number Publication date
ES2245589A1 (en) 2006-01-01

Similar Documents

Publication Publication Date Title
ES2313543T3 (en) REGULATION VALVE AND PRESSURE REDUCER WITH DRILLING MECHANISM OF A GAS CARTRIDGE THAT CAN BE MOUNTED IN A BARREL CLOSURE.
ES2529249T3 (en) Safety pin
ES2441442T3 (en) Pouring device for the release of ingredients and method of releasing an ingredient into a container
ES2907766T3 (en) Immersion mask having a body provided with an exhaled air escape device including a non-return valve
ES2899217T3 (en) Device for supplying a jet of water with safety valve
MX171875B (en) FLUID SUPPLY LOCK
ES2775251T3 (en) Tube head comprising a barrier forming insert
ES2350985T3 (en) CONTAINER WITH SEALING COVER AND FILLING PROCEDURE OF THE CONTAINER.
ES2856004T3 (en) Pressure relief valve of an extractor tube valve
BR102014015436A2 (en) beverage container with drinking lid and container
ES2245589B1 (en) Safety valve for pressurized aerosol can, has spring-loaded ball supported on conduit of aerosol can to open orifice of plug at conduit end when can internal pressure exceeds maximum established value
ES2658438T3 (en) Compressed air storage cartridge
CO2022016711A2 (en) An ostomy bag
ES2359685T3 (en) SEASONAL TAP OF SOFT RELEASE.
ES2349366T3 (en) VALVE PROVISION.
WO2003097464A1 (en) Vacuum pump for bottles
ES2927963T3 (en) Dispenser for dispensing a fluid
ES2274292T3 (en) MEANS OF CLOSURE OF PLUGS FOR BOTTLES THAT INCLUDE A SEAL WITH OPENING EVIDENCE.
WO2019111179A1 (en) Anti-explosion system for a pressure cooker with an internal closure system
ES2332887T3 (en) TUBULAR CONTAINER WITH INVIOLABILITY PLUG.
ES2632489T3 (en) Gas flow regulator, reducer, valve and bottle provided with such regulator
ES2952602T3 (en) Branded anchor
ES2272836T3 (en) DISPENSING COVER WITH HERMETIC SECURITY CLOSURE FOR FLUID SUBSTANCES CONTAINERS.
ES2700154T3 (en) Instrument driven by compressed gas, in particular, surgical instrument
ES2357653T3 (en) SHUTTER VALVE FOR LIQUID GAS CONTAINER CONTAINERS.

Legal Events

Date Code Title Description
EC2A Search report published

Date of ref document: 20060101

Kind code of ref document: A1

FG2A Definitive protection

Ref document number: 2245589B1

Country of ref document: ES

FD1A Patent lapsed

Effective date: 20101018