Agricultural land automatic water supply device

摘要

PROBLEM TO BE SOLVED: To provide an automatic agricultural land water supply device capable of surely closing a water supply channel even if pebbles or gravel is sandwiched between a water stop valve and a bottom surface of a valve chamber. SOLUTION: An agricultural land automatic water supply device 10 arranged in the middle of a water supply channel for guiding agricultural water from an irrigation canal to a farmland is arranged so as to be movable in the vertical direction, the water supply channel is closed at a fully closed position where the water supply is lowered, and a fully open position where the water supply channel is raised. A plate-shaped water stop valve 20 that opens the water supply channel, a valve body accommodating portion 30 that accommodates the water stop valve 20 at the fully open position, and a water stop valve 20 that is provided above the valve body accommodating portion 30. A control device accommodating portion 50 for accommodating a control device 52 for controlling the vertical position is provided, and the outer periphery of at least the lower portion of the water stop valve 20 in the height direction when viewed from the thickness direction is a closed cell. It is made of a sponge and is an elastic body outer peripheral portion 22 that can be elastically pressure-contacted with the bottom surface of the water supply channel when the water stop valve 20 is lowered. [Selection diagram] Fig. 2