| 摘要 |
<p>PURPOSE:To quickly perform the cutoff and improve the safety control of a gas bottle by releasing the air pressure of an air cylinder built in the device main body in emergency and automatically closing a container valve with the restoring force of a spiral spring. CONSTITUTION:A spiral spring 3 with the driving torque sufficient to close a container valve 2 is stored in the device main body 1, and a connected rotary shaft 4 is invariably set to the direction to close the container valve 2. When a bottle is normally used, the air pressure 11 is fed to an opening/closing air cylinder 7 connected to this spiral spring 3 shaft, the drive is blocked by this force, and the container valve 2 is kept opened. When the air pressure 11 of this opening/closing air cylinder 7 is released in emergency, the container valve 2 is automatically closed.</p> |
