| 摘要 |
<p>The present invention relates to a flowing water detection device for a fire extinguishing facility. The present invention comprises: a check valve case (101) having an opening; a check valve (120) composed of a disk (121), a disk coupling unit (125), a first extension unit (123), and a second extension unit (129); a check valve installation member (130) composed of a body unit (131) and a pair of bosses (133); a coupling rod (136) enabling the check valve to be coupled with the check valve installation member; an elastic member (143) installed in the elastic member mounting groove (139); and a switching device (150).</p> |
