초록 ▼

An aerosol vessel, which can be prevented from deforming and exploding by discharging gas when an excessive pressure occurs in a main body, is provided. The aerosol vessel includes a valve assembly basically including a nozzle body fixed to the main body; a valve stem installed at the nozzle body su

An aerosol vessel, which can be prevented from deforming and exploding by discharging gas when an excessive pressure occurs in a main body, is provided. The aerosol vessel includes a valve assembly basically including a nozzle body fixed to the main body; a valve stem installed at the nozzle body such that it can move up and down and has a gas inlet and a gas ejection passage; an opening/closing ring installed between the nozzle body and the valve stem such that it contacts and is removably supported by a support sill of the nozzle body in order to open or close the gas inlet; and an elastic unit for restoring the valve stem after operation and elastically supporting the opening/closing ring with respect to the support sill. When an excessive pressure occurs in the main body, the opening/closing ring moves upward and overcompressed gas is discharged through the gas inlet or a gap between the valve stem and a support member. The elastic unit may be composed of a contact spring for applying pressure the opening/closing ring and a support spring for elastically support the valve stem. An extra gas outlet may be formed in the valve stem in order to discharge the overcompressed gas.

대표청구항 ▼

1. An aerosol valve assembly for an aerosol vessel filled with contents and propellant gas, for discharging the contents or stopping discharging, the aerosol valve assembly comprising:a support member coupled to a top portion of a main body of the aerosol vessel; a nozzle body fixed at the support m

1. An aerosol valve assembly for an aerosol vessel filled with contents and propellant gas, for discharging the contents or stopping discharging, the aerosol valve assembly comprising:a support member coupled to a top portion of a main body of the aerosol vessel; a nozzle body fixed at the support member, including an opened end, a space communicating with an inside of the main body, and a support sill protruding into the space; a valve stem disposed in the space of the nozzle body, the valve stem comprising a gas inlet through which gas within the space of the nozzle body flows into the valve stem, and a gas ejection passage through which the gas flowing in through the gas inlet is ejected to an outside of the aerosol vessel; an opening/closing ring surrounding an outer circumference of the valve stem to open or close the gas inlet, the opening/closing ring contacting the support sill of the nozzle body and being removably supported by the support sill; and elastic means for restoring die valve stem after an operation of the assembly and elastically supporting the opening/closing ring with respect to the support sill the elastic means having a top end fixed to the valve stem and a bottom end pressing the opening/closing ring, wherein when an excessive pressure occurs within the main body of the aerosol vessel, the opening/closing ring moves upward to discharge overcompressed gas. 2. An aerosol vessel, comprising:an integral main body having an opened top and a hermetically sealed bottom; and an aerosol valve assembly including; a support member coupled to a top portion of the main body; a nozzle body fixed at the support member, including an opened end, a space communicating with an inside of the main body, and a support sill protruding into the space; a valve stem disposed in the space of the nozzle body, the valve stem comprising a gas inlet through which gas within the space of the nozzle body flows into the valve stem, and a gas ejection passage through which the gas flowing in through the gas inlet is ejected to an outside of the aerosol vessel; an opening/closing ring surrounding an outer circumference of the valve stem to open or close the gas inlet, the opening/closing ring contacting the support sill of the nozzle body and being removably supported by the support sill; and elastic means for restoring the valve stem after an operation of the assembly and elastically supporting the opening/closing ring with respect to the support sill, the elastic means having a top end fixed to the valve stem and a bottom end pressing the opening/closing ring, wherein when an excessive pressure occurs within the main body, the opening/closing ring moves upward to discharge overcompressed gas; wherein the support member of the aerosol valve assembly is coupled to the top portion of the main body. 3. The aerosol vessel of claim 2, wherein the top of the main body is coupled with a top sealing cap and the bottom of the main body is coupled with a bottom sealing cap, and wherein the support member of the aerosol valve assembly is coupled to the top sealing cap.4. An aerosol valve assembly for an aerosol vessel filled with contents and propellant gas, for discharging the contents or stopping discharging, the aerosol valve assembly comprising:a support member coupled to a top portion of a main body of the aerosol vessel and having an opening portion through which a valve stem is pierced; a nozzle body fixed at the support member, including an opened end, a space communicating with an inside of the main body, and a support sill protruding into the space; the valve stem disposed in the space of the nozzle body, the valve stem comprising a gas inlet through which gas within the space of the nozzle body flows into the valve stem, a keeping groove which communicates with the gas inlet, and a gas ejection passage through which the gas flowing in through the gas inlet is ejected to an outside of the aerosol vessel; an opening/closing ring surrounding an outer circumference of the valve stem to open or close the gas inlet, the opening/closing ring contacting the support sill of the nozzle body and being removably supported by the support sill; a contact spring which applies pressure to the opening/closing ring with respect to the support sill of the nozzle body is compressed when a pressure exceeding a set value occurs within the main body and is installed between the support member and the opening/closing ring; and a support spring for restoring the valve stem to an original position after operation, wherein a discharge gap is formed between the opening portion of the support member and a portion of the valve stem above the gas inlet, and wherein, when excessive pressure occurs within the main body of the aerosol vessel, overcompressed gas escapes the main body through a gap between the support sill of the nozzle body and the opening/closing ring and is discharged through the discharge gap. 5. An aerosol vessel comprising:an integral main body having an opened top and a hermetically sealed bottom; and an aerosol valve assembly including: a support member coupled to a top portion of the main body having an opening portion through which a valve stem is pierced; a nozzle body fixed at the support member, including an opened end, a space communicating with an inside of the main body, and a support sill protruding into the space; the valve stem disposed in the space of the nozzle body, the valve stem comprising a gas inlet through which gas within the space of the nozzle body flows into the valve stem, a keeping groove which communicates with the gas inlet, and a gas ejection passage through which the gas flowing in through the gas inlet is ejected to an outside of the aerosol vessel; an opening/closing ring surrounding an outer circumference of the valve stem to open or close the gas inlet, the opening/closing ring contacting the support sill of the nozzle body and being removably supported by the support sill; a contact spring which applies pressure to the opening/closing ring with respect to the support sill of the nozzle body is compressed when a pressure exceeding a set value occurs within the main body and is installed between the support member and the opening/closing ring; and a support spring for restoring the valve stem to an original position after operation, wherein a discharge gap is formed between the opening portion of the support member and a portion of the valve stem above the gas inlet, and wherein, when excessive pressure occurs within the main body of the aerosol vessel, overcompressed gas escapes the main body through a gap between the support sill of the nozzle body and the opening/closing ring and is discharged through the discharge gap. wherein the support member of the aerosol valve assembly is coupled to the top portion of the main body. 6. The aerosol vessel of claim 5, wherein the top of the main body is coupled with a top sealing cap and the bottom of the main body is coupled with a bottom sealing cap, and wherein the support member of the aerosol valve assembly is coupled to the top sealing cap.