KR20110121480A - Aerosol can and valve assembly thereof - Google Patents

Aerosol can and valve assembly thereof Download PDF

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Publication number
KR20110121480A
KR20110121480A KR1020100041083A KR20100041083A KR20110121480A KR 20110121480 A KR20110121480 A KR 20110121480A KR 1020100041083 A KR1020100041083 A KR 1020100041083A KR 20100041083 A KR20100041083 A KR 20100041083A KR 20110121480 A KR20110121480 A KR 20110121480A
Authority
KR
South Korea
Prior art keywords
stem
valve stem
housing
stem housing
orifice
Prior art date
Application number
KR1020100041083A
Other languages
Korean (ko)
Inventor
현창수
Original Assignee
주식회사 승일
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 주식회사 승일 filed Critical 주식회사 승일
Priority to KR1020100041083A priority Critical patent/KR20110121480A/en
Publication of KR20110121480A publication Critical patent/KR20110121480A/en

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    • 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
    • B65D83/16—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 characterised by the actuating means
    • B65D83/20—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 characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps
    • 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
    • B65D83/48—Lift valves, e.g. operated by push action

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

The present invention relates to a sealing structure of the valve assembly mounted to the mount cup of the injection container, the injection container is fixed to the top of the container body and the mount cup is formed in the center projection; A valve stem having an orifice formed laterally; A stem housing having a circumferential groove formed on an outer circumferential surface thereof so as to be fixed by the reduction of the cross section of the protruding portion, and having a guide part configured to move the valve stem up and down; Resiliently supports the part where the orifice of the valve stem is located so that the orifice can be connected to or disconnected from the side space of the lower end of the valve stem. A gasket formed to be movable in the stem housing so as to form a gap for overpressure release between the stem housing and the stem housing; And a lower sealing part disposed under the circumferential groove and formed to seal between an inner wall surface of the protruding portion and an outer circumferential surface of the stem housing.

Description

Injection container and its valve assembly {AEROSOL CAN AND VALVE ASSEMBLY THEREOF}

The present invention relates to a sealing structure of the valve assembly mounted to the mount cup of the injection vessel.

A fuel gas containing butane or propane, or a medium gas used for injecting insecticides or fragrances into an aerosol form is enclosed in a can under high pressure and circulated.

Such a spray container has a container body (can) for containing the contents and a mount cup fixed to the upper end of the container body and a valve assembly fixed to the central protrusion of the mount cup. The valve assembly maintains a closed state when the spray container is not in use and allows the contents to leak only when used.

In order to fix the valve assembly to the mount cup and to keep it in a closed state, a method of mounting the valve assembly after inserting an O-ring into the protrusion of the mount cup may be used. However, this sealing method is not only complicated to assemble but also serves as a limitation in applying a means for releasing overpressure in the container.

The present invention has been made in view of the above, and an object thereof is to improve assembly reliability by improving a sealing structure of a valve assembly fixed to a mount cup.

Another object of the present invention is to enable the overpressure release means in the container between the valve assembly and the mount cup through the above sealing structure.

In order to solve the above problems, the spray container associated with the present invention, the mount cup is fixed to the upper end of the container body formed with a protruding portion in the center; A valve stem having an orifice formed laterally; A stem housing having a circumferential groove formed on an outer circumferential surface thereof so as to be fixed by the reduction of the cross section of the protruding portion, and having a guide part configured to move the valve stem up and down; Resiliently supports the part where the orifice of the valve stem is located so that the orifice can be connected to or disconnected from the side space of the lower end of the valve stem. A gasket formed to be movable in the stem housing so as to form a gap for overpressure release between the stem housing and the stem housing; And a lower sealing part disposed under the circumferential groove and formed to seal between an inner wall surface of the protruding portion and an outer circumferential surface of the stem housing.

The lower sealing part may include a protruding edge portion protruding in a radial direction at a lower end of the stem housing and an O-ring fixed in a compressed state between an inner wall surface of the protruding portion and the protruding edge portion.

An upper surface of the protruding edge portion may form a curved surface to allow the O-ring to be seated.

The outer circumferential surface diameter of the protruding edge may be larger than the inner diameter of the lower end of the protruding portion.

The O-ring may be fixed in a compressed state between the inner wall surface of the protruding portion and the protruding edge portion by the stress generated by the cross-sectional reduction portion of the protruding portion curved toward the circumferential groove.

A first spring may be installed between the lower end of the valve stem and the lower end of the guide part so that the valve stem receives an upward force.

A second spring may be installed between the upper inner wall of the protruding portion and the gasket to receive the elastic force downward.

The second spring may be formed in the form of a coil spring, and the valve stem may be installed while being inserted into the second spring.

A cover member may be further provided on the top of the gasket to allow the second spring to be contacted and supported.

The present invention also provides a valve assembly fixed to an upper end of the container body and supported inside the protrusion of the mount cup having a protrusion formed at the center thereof, the valve stem having an orifice formed in a lateral direction; A stem housing having a circumferential groove formed on an outer circumferential surface thereof so as to be fixed by the reduction of the cross section of the protruding portion, and having a guide part configured to move the valve stem up and down; Resiliently supports the part where the orifice of the valve stem is located so that the orifice can be connected to or disconnected from the side space of the lower end of the valve stem. A gasket formed to be movable in the stem housing so as to form a gap for overpressure release between the stem housing and the stem housing; And a lower seal portion positioned below the circumferential groove and formed to seal between the inner wall surface of the protruding portion and the outer circumferential surface of the stem housing.

According to the injection container and the valve assembly according to the present invention, the sealing portion is located below the circumferential groove of the stem housing, and seals between the lower inner wall surface of the protruding portion and the outer circumferential surface of the stem housing. This bottom sealing structure not only facilitates the mounting of the sealing part during the assembly process, but also provides a firm sealing force.

In addition, such a bottom sealing structure has the advantage that the mounting area of the O-ring is not reduced when the means for releasing the overpressure in the valve assembly.

1 is a schematic cross-sectional view of a spray container equipped with a valve assembly related to the present invention.
2 is a cross-sectional view of the mount cup and valve assembly related to the present invention.
Figure 3 is a cross-sectional view of the stem housing associated with the present invention
4 is a plan view of the stem housing of FIG.
5 is an enlarged view of the guide unit of FIG. 3;
6 is an operating state showing the case where the overpressure is applied to the valve assembly of FIG.
7 is an enlarged view of a portion A of FIG.

Hereinafter, with reference to the accompanying drawings, the injection container and its valve assembly according to the present invention will be described in detail.

1 is a schematic cross-sectional view of a spray container equipped with a valve assembly related to the present invention.

Referring to FIG. 1, the injection container 100 includes a container body 101 in which an inner space S containing contents is formed, a mount cup 110 fixedly sealed to an upper end of the container body 101, and And a valve assembly 120 mounted to the mount cup 110.

The container body 101 may contain a high-pressure gas or liquid fuel, insecticides, fragrances, cosmetics, etc., and may be formed in a shape of a metal can that can withstand a certain internal pressure.

The lower cap 102 sealing the lower end of the container body 101 may have a curved shape toward the inner space (S) so that there is room for expansion deformation when a certain level of overpressure is applied to the inner space (S).

The mount cup 101 includes, for example, a locking portion 114 to be mounted to a fuel mounting device such as a gas stove, and a protrusion 115 to fix the valve assembly 120 at the center thereof. Is provided. However, the locking portion 114 may not be present in some cases (cap may be equipped with a push button for spraying if a solvent or pesticide is contained) or may be formed in a different form from FIG. 2. . A portion of the valve stem 130 forming the valve assembly 120 is exposed at the upper end of the protrusion 112. The valve stem 130 is installed to be pressed in the vertical direction, and the contents of the container body 101 are injected by the pressing, and the injection of the contents is stopped when the pressing is released.

2 is a cross-sectional view of the mount cup and valve assembly according to the present invention, FIG. 3 is a cross-sectional view of the stem housing according to the present invention, FIG. 4 is a plan view of the stem housing of FIG. 3, and FIG. 5 is an enlarged view of the guide part of FIG. 3. .

As shown in these figures, the valve assembly 100 is fixed by the mount cup 110 and includes a stem housing 140 for guiding the valve stem 120 to move up and down. The outer circumferential surface of the stem housing 140 is formed with a circumferential groove 148, and the stem 113 is deformed toward the circumferential groove 148 by the cross-sectional reduced portion 113 of the protrusion 112 at the center of the mount cup 110. The housing 140 is fixed to the protrusion 112 of the mount cup 110.

In total, the stem housing 140 includes a vertical installation portion 140a for opening and closing the valve stem 130 and a horizontal extension portion 140b extended after being bent inwardly of the container body 101. The stem housing 140 has a passage hole 141 formed in the center to allow the contents to pass therethrough, and the valve stem 130 also has a passage hole 131 formed therein, such that the passage hole and the valve of the stem housing 140 are formed. When the passage holes of the stem 130 are in communication with each other, the contents are sprayed, and conversely, the injection of the contents is stopped when they are blocked.

The valve stem 130 mounted to the stem housing 140 includes an orifice 132 formed in a lateral direction. The circumferential groove 136 is formed in the corresponding portion of the valve stem 130 in which the orifice 132 is formed, and the gasket 152 that opens or closes the orifice 132 is in contact with the circumferential groove 136. In order to support the gasket 152, a jaw 146 is formed on an inner wall of the stem housing 140. When the valve stem 130 is pressed, the inner circumferential surface of the gasket 152 in contact with the circumferential groove 136 is deformed downward, and the gap generated by the deformation is a passage of the orifice 132 and the stem housing 140. The holes 141 communicate with each other. At this time, the contents in the container body 101 are sprayed to the outside of the container body 101 along the orifice 132 and the passage hole 131 of the valve stem 130. On the contrary, when the force depressing the valve stem 130 is removed, the gasket 152 and the lower end of the valve stem 130 and the lower end 142a of the guide part 142 of the first spring 151 are supported. Restoration and deformation by the elastic force. As a result, the gasket 152 is in close contact with the circumferential groove 131 of the valve stem 130 to block the orifice 132, and the outflow of gas is blocked.

A guide part 142 for guiding the valve stem 130 is formed on an inner wall of the stem housing 140 to facilitate the vertical movement of the valve stem 130. According to FIG. 3, the guide part 142 is divided into several parts so as not to block the passage hole 141 by the valve stem 130.

In connection with the present invention, the valve assembly 120 includes means for releasing the overpressure when an overpressure occurs in the interior of the container body 101. That is, the gasket 152 has a shape that can be moved in the upper direction in the interior of the stem housing 140, a gap with the locking step 146 that the valve stem 130 was in contact with the movement occurs there The internal pressure is released along the gap. As the overpressure release means, the gasket 152 and the valve stem 130 include a second spring 160 supported on the upper end of the gasket 152 and the upper inner wall of the protrusion 112. The second spring 160 maintains a state in which the gasket 152 is in close contact with the jaw 146 by providing an elastic force downward with respect to the gasket 152. In order to install the second spring 160, the inner wall 149 of the stem housing 140 is formed to have a diameter larger than that of the guide portion 142. The second spring 160 is formed in the form of a coil spring, for example, and is installed with the valve stem 130 inserted into the second spring 160. In order to prevent the second spring 160 from directly contacting the gasket 152, the upper surface of the gasket 152 may be covered by the cover member 153.

The present invention also includes a lower sealing portion formed to seal between the inner wall surface of the protrusion 112 and the outer circumferential surface of the stem housing 140 at the lower side of the circumferential groove 148 of the stem housing 140. 2 and 4, the lower sealing part includes a protruding edge portion 147 radially protruding from the lower end of the stem housing 140, and between the inner wall surface of the protruding portion 112 and the protruding edge portion 147. It consists of a shape including an O-ring 170 that is fixed in a compressed state.

According to FIG. 4, the upper surface of the protruding edge portion 147 forms a curved surface 147a to allow the O-ring 170 to be seated. In addition, as shown in FIG. 2, the diameter of the outer circumferential surface of the protruding edge portion 147 is larger than the inner diameter of the lower end of the protruding portion 112. The O-ring 170 is formed between the inner wall surface of the protrusion 112 and the protruding edge 147 due to the stress caused by the deformation of the cross-sectional reduction portion 113 of the protrusion 112 toward the circumferential groove 148. It is fixed in a compressed state. In particular, the O-ring 170 is automatically closed when the stem housing 140 is fixed in the state that is seated on the protruding edge 147, interpolating to the protrusion 112 and to fix the stem housing 140 The assembly reliability is improved as compared with the conventional example.

FIG. 6 is an operating state diagram illustrating a case in which an overpressure is applied to the valve assembly of FIG. 2, and FIG. 7 is an enlarged view of portion A of FIG. 6.

When the valve assembly 120 is mounted on the container body 101 and overpressure is applied to the internal space S of the container body 101 by a predetermined value or more, the overpressure causes a force to move the gasket 152 upward. As a result, the gasket 152 is compressed from the jaw 146 which is in close contact with the second spring 160. As a result, the gasket 152 is created with the jaw 146 of the stem housing 140 and the overpressure relief gap g, and the contents of the overpressure state are moved along the gap g and then the protrusion 112 is moved. And leak outward along the assembly gap between the valve stem 130. It is possible to prevent the explosion of the injection container 100 by the overpressure releasing action in the injection container 100.

Such a spray container and its valve assembly are not limited to the configuration and manner of operation of the embodiments described above. The embodiments may be configured so that all or some of the embodiments may be selectively combined so that various modifications may be made.

Claims (10)

A mount cup fixed to the top of the container body and having a protrusion formed at the center thereof;
A valve stem having an orifice formed laterally;
A stem housing having a circumferential groove formed on an outer circumferential surface thereof so as to be fixed by the reduction of the cross section of the protruding portion, and having a guide part configured to move the valve stem up and down;
Resiliently supports the part where the orifice of the valve stem is located so that the orifice can be connected to or disconnected from the side space of the lower end of the valve stem. A gasket formed to be movable in the stem housing so as to form a gap for overpressure release between the stem housing and the stem housing; And
Located in the lower side of the circumferential groove, the injection vessel including a lower sealing portion formed to seal between the lower inner wall surface of the protruding portion and the outer peripheral surface of the stem housing. The method of claim 1, wherein the lower sealing portion,
Protruding edge portion protruding in the radial direction at the bottom of the stem housing and
Injection container comprising an O-ring fixed in a compressed state between the inner wall surface of the projecting portion and the projecting edge. The method of claim 2,
The upper surface of the protruding edge portion is a spray container, characterized in that the curved surface formed so that the O-ring is seated. The method of claim 2,
The outer circumferential surface diameter of the protruding edge portion is injection container, characterized in that formed larger than the inner diameter of the lower end of the protruding portion. The method of claim 2,
And the o-ring is fixed in a compressed state between the inner wall surface of the protruding portion and the protruding edge portion by a stress generated by the cross-sectional reduction portion of the protruding portion curved toward the circumferential groove. The method of claim 1,
And a first spring installed between the lower end of the valve stem and the lower end of the guide part so that the valve stem receives an upward force. The method of claim 1,
And a second spring disposed between the upper inner wall of the protruding portion and the gasket so that the gasket receives an elastic force downward. The method of claim 7, wherein
The second spring is formed in the form of a coil spring, the injection vessel characterized in that the valve stem is installed in the state inserted into the second spring. The method of claim 7, wherein
And a cover member is further provided on the top of the gasket to allow the second spring to be contacted and supported. In the valve assembly fixed to the top of the container body and supported in the interior of the protrusion of the mount cup with a protrusion formed in the center,
A valve stem having an orifice formed laterally;
A stem housing having a circumferential groove formed on an outer circumferential surface thereof so as to be fixed by the reduction of the cross section of the protruding portion, and having a guide part configured to move the valve stem up and down;
Resiliently supports the part where the orifice of the valve stem is located so that the orifice can be connected to or disconnected from the side space of the lower end of the valve stem. A gasket formed to be movable in the stem housing so as to form a gap for overpressure release between the stem housing and the stem housing; And
Located in the lower side of the circumferential groove, the valve assembly of the injection container including a lower sealing portion formed to seal between the inner wall surface of the protruding portion and the outer peripheral surface of the stem housing.
KR1020100041083A 2010-04-30 2010-04-30 Aerosol can and valve assembly thereof KR20110121480A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100041083A KR20110121480A (en) 2010-04-30 2010-04-30 Aerosol can and valve assembly thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100041083A KR20110121480A (en) 2010-04-30 2010-04-30 Aerosol can and valve assembly thereof

Publications (1)

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KR20110121480A true KR20110121480A (en) 2011-11-07

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KR1020100041083A KR20110121480A (en) 2010-04-30 2010-04-30 Aerosol can and valve assembly thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106536064A (en) * 2014-06-03 2017-03-22 索尔福德阀门有限公司 Valve assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106536064A (en) * 2014-06-03 2017-03-22 索尔福德阀门有限公司 Valve assembly

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