JP2004041213A - Automatic water supply installation for paddy field - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an installation for controlling a water level of a paddy field, without using electric power. <P>SOLUTION: This installation has an inlet chamber, an outlet chamber, a water gate section, and a float 4, wherein the inlet chamber communicates with an irrigation canal through an intake 12, the outlet chamber communicates with the paddy field through outlets 11, a rotary movable shutter 2 which is used for changing the level of water overflowing from the inlet chamber to the outlet chamber is located in the inside of the water gate section, and the float 4 is positioned at the rear of the water gate section, has guides diagonally inclined, and is used for detecting a change of the overflowing water level. When the float 4 detects that the water level consists with a predetermined level, the rotary movable shutter 2 is opened and closed by a water level control plate 3 attached to an upper part of the float 4, so that the level of the water supplied to the paddy field is controlled. <P>COPYRIGHT: (C)2004,JPO

Description

Provided is an automatic water supply device for paddy fields that automatically controls water supply for rice cultivation.

The paddy water level adjustment device is composed of a battery, a motor, and a controller, and is a facility for mechanical control using battery power.
JP 11-113431

The conventional paddy water level adjusting device is a product intended to be opened and closed by a motor with battery power, and the control of a paddy field having an average water volume of 1.000 m ² and a water volume of 30 to 50 tons requires a large burden of equipment costs.

An object of the present invention is to provide an automatic water supply apparatus for paddy fields that does not require battery power.

In order to achieve the above object, the present invention provides an intake chamber communicating with a paddy field, an outlet chamber communicating with a water discharge port, a partition between the intake port and the water discharge chamber, and a water discharge chamber from the intake port. A flooding means whose overflow height reaching the water level of the paddy field is adjustable, and a driving means mechanically connected to the flooding means to change the flooding height, the flooding means is linked with the flooding means to adjust the overflow height in the previous period. Position detecting means for detecting as a signal by a float which rises and falls at an oblique angle, and a rotary opening / closing door attached to a sluice operated by the driving means when the detected overflow height reaches an overflow height corresponding to a water level set value. And characterized in that:

The present invention relates to an apparatus for adjusting a water level in a paddy field, and more particularly to an automatic water supply apparatus for a paddy field that has little aging, has no consumable parts, and can be easily stored at home during a fallow period.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

FIG. 3 is a perspective view seen from the side of the automatic water supply device for paddy fields implemented by the present invention. The automatic water supply device of the paddy field is composed of a two-rotation type opening / closing door at a water gate portion and four floats controlled by a five-float guide behind the two-rotation type opening / closing door at the water gate portion.

As shown in Fig. 3, the two-turn type opening / closing door of the water gate section has a rectangular parallelepiped frame with a horizontal section of approximately square, a water level adjustment chamber arranged in this frame body, and a water level adjustment chamber communicating with the water level adjustment chamber. It has 11 outlets provided on the facing surface and 12 inlets provided on the opposite surface.

Figure 1 is a perspective view of the position of the float when water is reduced when viewed from the side, 4 floats are in contact with the bottom plate, 8 movable door stops are pushed by the weight of 4 floats, 9 front and 7 water stop plates Lowering from the rear, the two-turn type door can be freely rotated.

Water flows in from the 12 water inlets, and water is stored in the paddy field through the two-turn type door. As the water level rises, 4 floats are led to 5 float guides and begin to rise.

At this time, the two-turn type opening / closing door was prevented from rotating by the three water level adjustment plates attached to the upper part of the four floats, as shown in FIG.

Figure 2 is a perspective view of the float position when the water is full when viewed from the side. The water level in the paddy field still rises and reaches the full position. The contact point with the door is released, and the two-rotation door receives the water flow on the wing for one door movement, causing a rotational movement.

At the end of rotation, the 9 movable door stop located between 9 front and rear of the water stop plate stops the 2 turn type open / close door and stops, the water gate is completely closed, and the water supply stops. .

If the water level in the paddy field drops due to evaporation, water leakage, etc., the 4 floats are again guided to the 5 float guides, contact the bottom plate, 6 movable door stop opening brackets push down 8 movable door stops, and 2 turns from the floodgate The opening and closing door is opened, and the water supply operation proceeds.

Perspective view of float position when water is reduced from the side Perspective view of float position when full, viewed from the side Perspective view of automatic water supply system in paddy field Overhead view from above Figure looking up from the bottom

Explanation of reference numerals

1 Door moving wing
2 rotating door
3 Water level adjustment plate
4 float
5 Float guide
6 Movable door stop opening bracket
7 After water stop plate
8 Movable door stop
9 In front of the water stop plate
10 Garbage avoiding fences and dams
11 Outlet
12 Inlet

Claims (3)

An inlet communicating with the inside of the paddy field, an outlet chamber communicating with the outlet, a partition between the inlet and the outlet chamber, and an overflow height from the inlet to the water level of the paddy from the outlet chamber is adjustable. And a floodgate opening / closing means which is mechanically connected to the flooding means and which detects as a signal by a float which raises and lowers the overflow height at an oblique angle, and also serves as a floodgate opening / closing means. An automatic opening / closing door which is operated by the opening / closing means when the overflow height corresponding to the value is reached. 2. The automatic water supply device for paddy fields according to claim 1, wherein the control device is controlled by a float guided to a guide pipe at an oblique angle, and the water level set value is adjusted by a length of a water level adjusting bracket. 2. The automatic water supply device for paddy fields according to claim 1, further comprising: a rotary opening / closing door attached to a water gate operated by the driving means.

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