| 摘要 |
PROBLEM TO BE SOLVED: To provide an unmanned water stop apparatus using water, capable of stopping water being poured into a paddy field without the physical presence of people, lightening labor of farmer of rice culture and bringing about leisure time. SOLUTION: A tubular body (1) having opening parts (5) on both sides is provided with a hole (6), a hole (9), a hole (10), a hole (13) and small holes (14). A tubular body (2) closed on both sides is provided with a hole (11), a hole (12) and small holes (15). A tubular body (3) having one opening side is provided with a hole (7) and a hole (8). The tubular body (2) is connected to the tubular body (3) by a wire (4) and stored in the tubular body (1).
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