| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a raised type waterproof door that eliminates the need for electric facilities and can be automatically raised when a flood is detected, namely, can securely prevent a flood in a case of sudden rising in the night etc., when people are absent, includes compact driving source facilities to have a large degree of freedom of its installation, and cannot only be provided at a relatively low price, but also use a gas bottle assembly on the market as a driving source. <P>SOLUTION: In a pressure gas supply circuit between an air pressure cylinder 6 and a carbon dioxide bottle assembly 12 for raising a waterproof door 1, a pressure reduction tank 18, a valve 26, a tee 27, a flow-rate control valve 22, and a tee 23 are connected in order from the side of the carbon dioxide bottle assembly 12, an exhaust flow-rate control valve 24 being connected to the tee 23 and a valve 28 being connected to the tee 27. <P>COPYRIGHT: (C)2013,JPO&INPIT |
