| 摘要 |
PROBLEM TO BE SOLVED: To provide a spray device with a simple structure, preventing rupture or explosion and to prevent a high pressure gas from belching all at once.SOLUTION: When an inner pressure of a compressed gas cylinder 30 rises and the inner pressure of the compressed gas cylinder 30 rises to reach a prescribed pressure or higher, a safety valve 42 is moved in an opening direction, and a piston 44 moves in a safe hole opening direction to discharge the pressure to the atmosphere from the safe hole 42. Thus, the rise of the inner pressure of the compressed gas cylinder 30 is suppressed. |
