JP3289878B2 - Paddy water level adjustment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a paddy water level adjusting device,
In particular, the present invention relates to a paddy water level control device capable of arbitrarily adjusting the water level of a paddy field.

[0002]

2. Description of the Related Art Water from paddy fields is indispensable from rice transplanting to the maturation of ears. Farmers monitor the water level of paddy fields daily and determine whether the required water level is sufficient or not. If so, make this adjustment. In cold regions, so-called deep water management, which protects rice from low temperatures by raising the water level at low temperatures, from the stage of seedling formation to the stage of booting, is an indispensable agricultural work.

The simplest and widely used method for adjusting the water level of a paddy field is to provide an intake port in a part of a ridge surrounding the paddy field and a drain port on the opposite side of the paddy field as viewed from the intake port. A water stop plate that can be inserted and removed is provided at each mouth, and the water level is adjusted using the water stop plate.

That is, in water level adjustment, first, a water stop plate on the drain port side is selected to have a height corresponding to the required water level, and then the water stop plate on the water intake port side is pulled up to take water until the required water level can be secured. . Even if water is taken in excessively, the surplus water overflows from the water stoppage plate and is discharged, so that the required water level can be secured. After securing the water level, push down the water stop plate on the water intake side to close the water intake. If it is necessary to change the water level for any reason, change the water stop plate on the drain port side to one with a different height, and if necessary, open the water intake port to collect the required amount of water and adjust the water level. Make changes. All of these operations are performed manually, and it is necessary for the operator to visit the installation location of the water stop plate for the operations.

[0005] Since this water level adjustment method has been practiced since ancient times, there is no known literature directly relating to this method. However, as a known literature including the concept of this method, for example, Japanese Patent Laid-Open No. 60-258316 ( 60.12.20).

[0006]

The adjustment of the water level of a paddy field by operating a water stop plate at an intake port and a drain port, which has been practiced since ancient times, has the following problems.

[0007] 1. The water intake and drain ports must be manually operated for each paddy field, which is troublesome. In order to save labor by mechanization, high reliability is required in terms of operation of a movable portion corresponding to a water stop plate. That is, it is required that the movable part can always operate without any trouble even in the presence of floating substances such as water, mud, grass, and straw waste, and that the water can be reliably stopped. In the case of mechanization, the electric control system is the easiest to control, and in this case, it is possible to perform the required operation by itself without receiving power from the outside, that is, independent operation at the place, that is, without routing the power line or the like. It is required that there be.

[0008] 2. During the rice harvest season, the water in the paddy field is dropped, but urgent drainage is required. It is also necessary to drain the remaining water remaining in the slope and dent of the bottom of the rice field.

3. The intake is usually located on the irrigation canal side, i.e. on the farm road side, and the drain is located on the opposite drainage side. For this reason, when operating the water stop plate on the drain port side, it is necessary to reciprocate on a ridgeway as long as 200 m for each paddy each time, which requires time and labor. It is also dangerous for an elderly person to go back and forth on a poorly scaffolded ridge in the early morning and dusk time.

One object of the present invention is not only to be able to arbitrarily adjust the water level of a paddy field, but also to be able to operate without problems even in the presence of suspended matter such as mud, grass, straw waste, etc. A paddy water level adjusting device is provided.

It is another object of the present invention to provide a paddy water level adjusting device which is economical and can flow a large amount of water as required.

Another object of the present invention is to provide a paddy water level adjusting device capable of reducing the occupied area of the device.

Still another object of the present invention is to provide a paddy water level adjusting device which can realize a local device without depending on the outside and can provide high reliability.

Still another object of the present invention is to provide a paddy water level adjusting device which can be operated without having to go to the device and which is effective in terms of operability, efficiency and safety.

[0015]

SUMMARY OF THE INVENTION A paddy water level adjusting device according to the present invention includes first and second plates for forming a water passage through which water flows, and means for blocking water flowing through the water passage. The damming means includes a collapsible plate and a watertight member, wherein the collapsible plate can be tilted to adjust the height of its tip to change the damming water level of the water flowing through the water channel. And the second plate, wherein the watertight member maintains substantially watertightness between the collapsible plate and the first and second plates, and the first and second plates are tilted during the tilting operation of the collapsible plate. Second
Is provided on the collapsible plate so as to be able to elastically slide on the plate.

According to this, since the paddy water level can be adjusted only by performing the tilting operation of the tiltable plate, the water level can be easily adjusted. In addition, the watertight member is in the first position when the tilting plate is tilted.
And can be elastically slid with respect to the second plate, so that even if there is a floating substance such as mud, grass, straw waste, etc., operation is possible without any trouble, and high reliability is achieved. Is given.

According to another aspect of the present invention, the damming means includes a fixed plate provided below the collapsible plate, and the collapsible plate is connected to the fixed plate via a hinge. The fixing plate has a water hole, and the damming means has a lid for opening and closing the water hole.

According to this, since the water hole can be opened by removing the lid, a large amount of water can be passed as required without increasing the size of the movable water level adjusting part, and It is effective in terms of sex.

According to another aspect, the present invention provides:
Driving means for driving the tiltable plate so as to perform the tilting operation is provided, and the driving means is provided in a vertical direction of the tiltable plate.

According to this, the area occupied by the device can be reduced, which is effective in terms of economy.

The present invention, according to yet another aspect, comprises:
The battery includes a battery serving as a power source of the driving unit and a solar battery for charging the battery.

According to this, since the device can be operated without drawing in a power line from the outside, a local device can be realized without depending on the outside, and high reliability can be provided. .

According to still another aspect of the present invention, there is provided means for wirelessly controlling the driving device by radio waves.

[0024] According to this, for example, radio remote control can be performed from a farm road by a portable transmitter, so that operation can be performed without having to go to the device, and operability, efficiency, and the like can be improved.
It is effective in terms of safety.

[0025]

FIG. 1 is a front view of an embodiment of the present invention, and FIG. 2 is a partial sectional view of the embodiment of the present invention. In FIGS. 1 and 2, reference numerals 1 and 2 denote vertical and parallel fixing plates arranged so as to cross the ridge 3 of the paddy field.
A water channel 4 is formed between these plates. 5 is a fixed plate 1,
In the form of blocking the waterway between the two, and fixed plate 1,
3 is a third fixing plate arranged so as to maintain watertightness between the second fixing plate and the second fixing plate. Above the fixed plate 5, there is a collapsible plate 6, which is connected to the fixed plate 5 via a horizontally arranged hinge 7, and the horizontal between the fixed plates 1 and 2 around the hinge 7. It can be tilted in any direction. Both edges of the collapsible plate 6 facing the fixed plates 1 and 2 are watertight members for maintaining watertightness between the fixed plates 1 and 2 regardless of whether the collapsible plate 6 is operating or stationary. Rubber plates 8 and 9 are attached.

In FIG. 2, the upstream of the water channel 4 is a fixed plate 5,
It is possible to set either the left side or the right side when viewed from the folding plate 6, but now, the right side is the upstream as shown in the figure. The water level on the upstream side matches the illustrated position of the upper end 10 of the collapsible plate 6. The position of the upper end 10 shown is the highest possible value in the structure of the present apparatus. When the foldable plate 6 is tilted in the horizontal direction, the tip 10 is lowered to, for example, a position 11. At this time, the water on the upstream side overflows from the tip 10 and the waterway 4
And moves downstream (not shown). That is,
The tip 10 forms an overflow port together with the fixed plates 1 and 2, and adjusts the height of the overflow port by changing the falling angle of the collapsible plate 6 so that the upstream or downstream water level is set to the highest position of the tip 10. It can be arbitrarily adjusted between the minimum position 12 and the position.

In the example shown in FIGS. 1 and 2, the retractable plate 6 is connected to a link 15 by hinges 13 and 14, and the other end is mechanically connected to a driving device 17 via a hinge 16. The driving device 17 is a gear motor in the illustrated example, and converts the rotating operation of the driving device 17 into a linear motion by a pinion 18 and a rack 19 to move the collapsible plate 6 up and down. The tilting plate 6 can be interlocked, and this horizontal axis can be connected to a drive device by means of gears or pulleys and belts and rotated to adjust the tilting angle of the tilting plate 6. Further, in the illustrated example, the connection mechanism such as the driving device 17 and the link 15 is disposed vertically (upward and downward) above the collapsible plate 6, but may be arranged below the collapsible plate 6, that is, on the underground side shown in the figure. It is. This arrangement is effective in reducing the area occupied by the entire device.

The driving device 17 uses a battery 20 and a solar cell 21 for charging the battery 20 as a power source. This makes it possible to operate the device without drawing in a power line from the outside, so that the device can be localized and simplified without relying on the outside.

In FIG. 2, reference numeral 22 denotes a water passage hole provided in the fixing plate 5, which is usually covered by a lid 23. In the illustrated example, the water holes 22 are provided below the bottom surface 24 of the paddy field. When dropping water and drying the field during the harvest season,
The collapsible plate 6 drains with the overflow port fully opened so that the tip 10 comes to the position 12, that is, to the lowest position.
At this time, if the mud at the bottom of the paddy field on the right side of the lid 23 is removed in FIG. Can be drained. In the vicinity of the drainage outlet of the paddy field, the paddy bottom 24 is usually made lower than any part of the paddy bottom so that water can be collected at the time of drainage, and is inclined, but this inclination is gentle or the paddy bottom is partially formed. If it is tilted or dented in another direction, water will remain and drainage will take longer. In such a case, the residual water can be drained by digging the bottom of the paddy field from the position where the residual water is present to the water passage hole 22 to provide a communication groove.

FIG. 3 is a partial sectional view showing a watertight structure between the fixed plate 1 and the collapsible plate 6. Numeral 8 denotes a rubber plate which is a watertight member, one end of which is fixed to the collapsible plate 6 with a bracket 25 and a screw 26, and the other end of which is bent by 90 ° in the illustrated example, and is fixed by the restoring force of the rubber plate itself generated thereby. The plate 1 and the contact surface 27 are elastically (elastically) in close contact with each other. The contact surface 27 maintains watertightness. When the collapsible plate 6 moves upward in FIG. 3, for example, the rubber plate 8 is attached to the fixed plate 1 even when floating substances such as mud, grass, and straw chips adhere to the surface of the fixed plate 1.
Since these can be elastically scraped off while sliding on the surface of the plate, the collapsible plate 6 can be operated without being hard. In FIG. 3, reference numeral 8 'denotes a rubber plate, which is a watertight member, which has the same function as the rubber plate 8 only in a different direction. Mud, grass, straw debris, and the like are formed on both upper and lower sides of the collapsible plate 6. It can be adopted as needed in an existing environment.

FIG. 4 is a front view showing a watertight structure around a hinge 7 and FIG. 5 is a partial sectional view of the same. In FIG. 5, reference numeral 28 denotes a rubber plate as a watertight member, which is disposed so as to cover the hinge 7, the upper end of which is provided on the collapsible plate 6 by a metal fitting 29 and a screw 30, and the lower end thereof is provided by a metal fitting 31 and a screw 32. Fixed on top. The left and right sides of the upper end of the rubber plate 28 are partially cut out and bent. For example, a bent portion 33 is formed on the right side of the drawing, and is adhered to the end of the rubber plate 9 so as to maintain watertightness. The width dimension of the rubber plate 28 is slightly larger than the interval between the fixed plates 1 and 2 to provide a tight margin, thereby maintaining watertightness between the two.

In FIG. 2, reference numeral 34 denotes a control device for controlling the driving device 17, and a receiving antenna 35 is connected to one end. The control device includes, for example, a receiving unit that receives a radio signal from a transmitter (not shown) such as a portable transmitter that can be operated on a farm road, and a height of the tip 10 of the collapsible plate 6 that responds according to the received signal. After confirming the position, a signal corresponding to this position is converted into a radio wave, and the signal is transmitted to a transmitter (not shown). The transmitter also has a receiving function.

According to the embodiment described above, the following effects can be expected.

1. Highly reliable paddy water level that can be used in paddy water where there is mud, grass, straw debris, etc. without causing troubles such as firmness during operation by adopting a watertight structure using the restoring force of the rubber plate An adjusting device can be realized.

2. By providing a fixed water hole separately from the movable water level adjustment unit provided in the device, a large water flow rate, for example, a drainage amount can be obtained when necessary without increasing the size of the movable water level adjustment unit, and economical efficiency is obtained. It is effective from the point of view.

3. By arranging a driving device for driving the movable water level adjustment unit of the device above or below the movable adjustment unit in the vertical direction, the occupied area of the device can be reduced, which is effective in terms of economy. In addition, by using a battery and a solar cell as the power source of the driving device, a local device that does not depend on the outside can be realized, which is effective in terms of reliability.

4. By making the driving device of the device wirelessly controllable by radio waves, remote control can be performed without visiting the device, which is effective in terms of operability, efficiency, and safety.

[0038]

The effects of the present invention can be summarized as follows.

1. Provided is a paddy water level adjusting device which can not only arbitrarily adjust the paddy water level but also can operate satisfactorily even in the presence of suspended matters such as mud, grass, and straw waste, and is suitable for providing high reliability.

2. There is provided a paddy water level adjusting device which is rich in economy and can flow a large amount of water as needed.

3. A paddy water level adjusting device capable of reducing an occupied area of the device is provided.

4. Provided is a paddy water level adjusting device that can realize a local device without depending on the outside and can provide high reliability.

5. Provided is a paddy water level adjusting device that can be operated without having to visit the device, and is effective in terms of operability, efficiency, and safety.

[Brief description of the drawings]

FIG. 1 is a front view of a paddy water level adjusting device according to an embodiment of the present invention.

FIG. 2 is a side view, partially in section, of the device of FIG. 1;

FIG. 3 is a partial cross-sectional view of a movable water level adjusting unit of the apparatus of FIG.

FIG. 4 is a front view of the vicinity of a hinge of a movable water level adjusting unit of the apparatus of FIG. 1;

FIG. 5 is a side sectional view of the part of FIG. 4;

[Explanation of symbols]

1: fixed plate, 2: fixed plate, 5: fixed plate, 6: collapsible plate,
8: rubber plate, 8 ': rubber plate, 9: rubber plate, 17: drive device, 20: battery, 21: solar cell, 22: water hole, 2
8: rubber plate, 34: control device.

Claims (7)

(57) [Claims] 1. A first device for forming a water channel between which water flows.
And a second plate, and means for blocking water flowing through the water channel, wherein the blocking device includes a retractable plate and a watertight member, wherein the retractable plate adjusts the height of the tip thereof to form the water channel. And a watertight member is provided between the first and second plates so as to be tiltable so as to be able to change a dam level of the water flowing through the first plate and the first and second plates. When the tilting plate is tilted, the first
And a paddy water level adjusting device provided on the collapsible plate so as to be elastically slidable with respect to the second plate. 2. The paddy water level adjusting device according to claim 1, wherein said watertight member is constituted by a rubber plate. 3. The damming means includes a fixed plate provided below the collapsible plate, and the collapsible plate is connected to the fixed plate via a hinge. The paddy water level adjusting device according to 1 or 2. 4. The paddy water level adjusting device according to claim 3 , wherein the fixing plate has a water passage hole, and the damming means has a lid for opening and closing the water passage hole. 5. The apparatus according to claim 1, further comprising driving means for driving said tiltable plate so as to perform a tilting operation thereof, said driving means being provided in a vertical direction of said tiltable plate. Paddy water level adjustment device described in 1. 6. A paddy water level adjusting device according to claim 5, further comprising a battery serving as a power source of said driving means and a solar cell for charging said battery. 7. The paddy water level adjusting device according to claim 5, further comprising means for wirelessly controlling the driving device by radio waves.