| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a drainage canal switching device which reduces faults even when it is installed in a location to be easily exposed to retention water and facilitates installation even to drainage outflow pipes 5 and 6 of a large diameter by not only adopting a simple discharge structure of just opening and closing drain ports 7 and 8 of the respective drainage outflow pipes 5 and 6 by lids 9 and 10 in a drain tank 1 but also adopting mechanical switching means instead of a solenoid valve. <P>SOLUTION: When a rod 18 of a reciprocating drive part 16 is moved back together with a movable part 19, through a rope 14 of a fixed length disposed to a rope receiver 15, one lid 9 is turned downwards by the weight to close one drain port 7, and the other lid 10 is turned upwards opposing the weight to open the other drain port 8 simultaneously. When the rod 18 of the reciprocating drive part 16 is moved forward together with the movable part 19, through the rope 14, the one lid 9 is turned upwards opposing the weight to open the one drain port 7, and the other lid 10 is turned downwards by the weight to close the other drain port 8 simultaneously. <P>COPYRIGHT: (C)2012,JPO&INPIT |
