| 摘要 |
<p>PURPOSE:To safely use a gas cooker even if the pressure of gas in the cylinder extraodinarily rises, by bringing a nozzle of check valve into the closed condition by pushing up a check valve by high pressure and by deforming a belleville spring. CONSTITUTION:When a gas cylinder 1 is assembled in the body of gas cooker, a valve stem 17 pushes to open a check valve 3, of which valve nozzle 2 is the closed condition. This time, as the check valve 3 itself is moved by a coil spring 6 contracting, the rear end 3' of the valve is contacted to the belleville spring 7, and a part of force to open a valve of gas cylinder acts to the check valve 3 by the belleville spring 7. If the pressure of gas in the gas cylinder extraodinarily rises by some reason, the check valve 3 is pushed up by high pressure and the belleville spring 7 is deformed. The valve nozzle 2 is brought into the closed condition by the action of a spring 19, therefore, the gas heater can be used safely.</p> |
