The present invention when the gas container inner pressure of the portable butane gas rise to a constant over safety valve to operates instantaneously ejected to the outside at a time the over-pressure gas in the container through the over-pressure gas discharge hole drop the pressure in the vessel sufficient gas containers relates to a safety valve for over-pressure exhaust gas to prevent explosions in a portable container to prevent explosions.
Portable safety over-pressure valve for the discharge of the gas container for preventing explosion according to the invention, the safety valve housing are each formed of a first diameter and the second diameter of the other cylindrical portion integrally; And the locking step is formed in the top of the body, and is provided with a lower fastening portion and the gas outlet of the gasket to the body portion, the shaft being positioned inside the safety valve comprising: a housing; The bottom is opened, and a through-hole is formed in the vertical direction in the center portion of the closure top, is provided with a sidewall provided with a space which can be gas is discharged in the vertical direction along the edge, the engaging shoulder of the shaft in the through-holes and that is through-inserted position, the outer circumferential surface of the side wall is installed so that the inner circumferential surface in close contact with the first diameter portion of the safety valve stopper housing; It is fitted to the main body of the shaft, a spring provided between the lower face of the gas outlet and the upper surface of the upper stopper shaft; A first gasket which is located sandwiched between the safety valve of the first diameter portion and the top of the mounting cup of the housing over-pressure gas discharge holes; Fitted to the gasket tightening portion formed on the bottom of the shaft, it is configured to include a second gasket that is in close contact with the upper end is installed to a lower gas outlet.