JPH0998678A - Automatic water intake device for watering - Google Patents
Automatic water intake device for wateringInfo
- Publication number
- JPH0998678A JPH0998678A JP27842795A JP27842795A JPH0998678A JP H0998678 A JPH0998678 A JP H0998678A JP 27842795 A JP27842795 A JP 27842795A JP 27842795 A JP27842795 A JP 27842795A JP H0998678 A JPH0998678 A JP H0998678A
- Authority
- JP
- Japan
- Prior art keywords
- water
- water level
- intake
- level sensor
- float
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Control Of Non-Electrical Variables (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、主に水田等の給水ライ
ンに直接取付けて水管理を自動化するための灌漑用自動
取水器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic irrigation water intake device which is directly attached to a water supply line such as a paddy field to automate water management.
【０００２】[0002]
【従来の技術】稲は有効分けつ期、無効分けつ期、穂ば
らみ期および登熟期を経て生育する。この生育には各々
の期に適する水の管理すなわち、浅水管理、深水管理や
間断灌水の水管理が大事である。従来、この水の管理は
人手によって行っていた。2. Description of the Related Art Rice grows through an effective tillering stage, an ineffective tillering stage, a booting stage and a ripening stage. For this growth, it is important to manage water suitable for each season, that is, shallow water management, deep water management and intermittent irrigation water management. Traditionally, this water was managed manually.
【０００３】[0003]
【発明が解決しようとする課題】そこで、本発明は、人
手による作業の省力化を達成する、電気を使わない新規
の灌漑用自動取水器を提供することを目的とする。SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a novel automatic irrigation water intake device which does not use electricity and achieves labor saving in manual work.
【０００４】[0004]
【課題を解決しようとする手段】上記目的を達成するた
めに本発明に係る灌漑用自動取水器は、圃場水面が設定
値以下になったときにフロートにより水位調節用下限セ
ットが下がって水位センサーを押し下げ、水位センサー
が下限を感知したときにパイロット弁により水密バック
内の水が排水され、この排水に伴って取水堰が給水ライ
ンの水圧により開いて給水ラインから取水し、圃場水面
が設定値以上になったときにフロートにより水位調節用
上限セットが上がって水位センサーを押し上げ、水位セ
ンサーが上限を感知したときにパイロット弁により水密
バック内に給水ラインから流水加速トンネルを介して水
が加圧され、この加圧により取水堰が閉じて止水するよ
うにしたものである。In order to achieve the above object, an automatic irrigation water intake device according to the present invention is a water level sensor in which a lower limit set for water level adjustment is lowered by a float when the water level in a field falls below a set value. When the water level sensor detects the lower limit, the pilot valve drains the water in the watertight bag, and with this drainage, the intake weir opens due to the water pressure of the water supply line and takes in water from the water supply line. When it becomes above, the upper limit set for water level adjustment rises by the float and pushes up the water level sensor.When the water level sensor detects the upper limit, the pilot valve pressurizes the water from the water supply line into the watertight bag through the water flow acceleration tunnel. Then, the pressurization closes the intake weir to stop the water.
【０００５】[0005]
【作用】給水ラインの水の圧力とフロートの浮力とを動
力源として取水の開始・停止の制御を自動的になすもの
であって、動力用電力も制御用電気もいらないものであ
る。The function of automatically controlling the start and stop of water intake by using the water pressure of the water supply line and the buoyancy of the float as power sources does not require power for power or control electricity.
【０００６】[0006]
【発明の効果】本発明は、上記のような構成になるので
人手による作業の省力化を達成する、電気を使わない新
規の灌漑用自動取水器を提供するという所期の目的を完
全に達成することができ、また、次のような効果も期待
することができる。すなわち、 省力化ができる。（浅水・深水管理や間断灌水の必要
時期に定水位をセットするだけで後は自動的に水管理を
行なうものであるため他の農作業をすることができ省力
化ができ、また兼業農家の方は休日などを利用してセッ
トすれば、後は安心して勤めに専念できる。） 増収・冷害対策に威力を発揮する。（間断灌水を行う
ことによって硫化水素の発生を抑え根の発育を促進する
ことにより増収が期待できるなど稲の生育生理に合った
水管理をすることができ、深水・浅水・湛水管理、間断
灌水等、自在の管理が可能であり、これまでの経験が省
力化と共に活かすことができ、素速い気象変動への対応
も可能となる。） 肥料・農薬の効率が良くなる。（定水位で止水するた
め流出むらが無く、均一な肥料が期待でき、また水口か
ら取水時に肥料や農薬を施用する仕組みもでき効率を高
められる。） 節水ができる。（水田の定水位をセットすることによ
り自動的に取水停止が行なわれ、これまでの人手による
仕切弁の締め忘れや遅れによる水の無駄使いをなくし節
水ができ、地域給水ラインの運転時間の短縮もでき、土
地改良区の経費節約にも有効である。） 農村の自然環境を守る。（水田に施用・散布した肥料
・農薬等を流出をなくし、水路・河川への汚染をなくす
ることができる。）EFFECTS OF THE INVENTION The present invention completely achieves the intended purpose of providing a new automatic water intake device for irrigation that does not require electricity because it has the above-mentioned structure and thus saves labor in manual work. In addition, the following effects can be expected. That is, labor can be saved. (Short / deep water management and intermittent watering can be done by simply setting a fixed water level at a time when water management is done automatically, so other farm work can be done and labor can be saved. If you set it on holidays, you can concentrate on your work with peace of mind after that.) It is effective in increasing revenue and preventing cold damage. (Intermittent irrigation suppresses the generation of hydrogen sulfide and promotes root development, which can be expected to increase yields. Water can be managed according to the growth physiology of rice. Flexible management such as irrigation is possible, the experience so far can be utilized with labor saving, and it is also possible to respond to quick climate change.) The efficiency of fertilizers and pesticides is improved. (Since the water is stopped at a constant water level, there is no run-out unevenness and uniform fertilizer can be expected, and there is also a mechanism to apply fertilizers and pesticides at the time of water intake from the water inlet to improve efficiency.) Water can be saved. (By setting a fixed water level in the paddy field, water intake is automatically stopped, saving water by eliminating waste of water due to forgetting to close the sluice valve and delays caused by manual operation, and shortening the operating time of the regional water supply line. It is also possible to save money in the land improvement zone.) Protect the natural environment of rural areas. (It is possible to eliminate the outflow of fertilizers, pesticides, etc. that have been applied / sprayed to the paddy fields and eliminate the pollution of waterways / rivers.)
【０００７】[0007]
【実施例】図に示す実施例は、自動取水堰部１と水位感
知部２からなるものであって、自動取水堰部１は水田３
の取水口４に取付け、水位感知部２は水田中に設置し、
灌漑を始めると水位感知部２のフロートが水位を感知
し、取水堰部１が取水・断水を自動的になすようになっ
ているものであり、The embodiment shown in the figure comprises an automatic intake weir section 1 and a water level sensing section 2, wherein the automatic intake weir section 1 is a paddy field 3.
Attached to the intake 4 of the
When irrigation is started, the float of the water level sensing unit 2 senses the water level, and the water intake weir unit 1 automatically performs water intake and water interruption.
【０００８】上記自動取水堰部１は、両端が開放した角
筒状体５と同角筒状体５の下面に設けた流水加速トンネ
ル６からなる器体７を構成し、この器体７を水田３の取
水口４にその一端が給水ライン８の側にまた他端が水田
３側に開口するようにして取付けると共に当該角筒状体
５の中間個所にステンレス製フィルター９を交換可能に
張設し、また同角筒状体５の上面壁１０においてフィル
ター取付個所より僅かに給水ライン８側の方にずれた位
置に加圧排出口１１を開設し、更に同角筒状体５におい
てフィルタ９よりも水田３側の方の内部に板をＵ字状に
曲げた形状の取水堰１２をガイド１３を介して上下動自
在に装入し且つこの取水堰１２の前後垂直壁１４、１５
の上端を器体７の上側に貫出して当該各貫出端に同取水
堰１２に開き方向への弾性を賦与するバネ１６、１７を
係装すると共に角筒状体５の上面壁１０において上記前
後垂直壁１４、１５に挟まれた個所に大きい丸孔１８を
開設し、当該丸孔１８を介して蛇腹付き皿形状ゴム製水
密バック１９を挿入し、この水密バック１９の開口縁に
フランジ２０を一体に設け且つ当該フランジ２０を水密
カバー２１の縁で丸孔１８の切縁に挟止することによっ
て水密室２２を構成し、この水密室２２の底部において
水密バック１９と取水堰１２とを当金２３およびリベッ
ト２４により止着すると共に上記水密カバー２３の中央
に第１ホースジョイント２５を設け、また上記流水加速
トンネル６は給水ライン８側から徐々に水田側に向うに
従って狭くなるロート状とし且つ水田側の端を閉じた構
成とし、この水田側端に第２ホースジョイント２６を設
けたものであり、The automatic water intake weir portion 1 constitutes a container body 7 composed of a rectangular tubular body 5 having both ends open and a flowing water accelerating tunnel 6 provided on the lower surface of the rectangular tubular body 5. It is attached to the intake port 4 of the paddy field 3 so that one end thereof is open to the side of the water supply line 8 and the other end is open to the side of the paddy field 3 and the stainless steel filter 9 is replaceably attached to the middle portion of the rectangular tubular body 5. In addition, a pressurizing discharge port 11 is opened at a position slightly displaced toward the water supply line 8 side from the filter mounting point on the upper surface wall 10 of the equiangular tubular body 5, and the filter 9 in the equiangular tubular body 5 is further provided. A water intake weir 12 having a U-shaped bent plate is vertically movably inserted into the inside of the paddy field 3 side through a guide 13 and the front and rear vertical walls 14, 15 of the water intake weir 12 are inserted.
The upper ends of the rectangular tubular body 5 are attached to the upper wall 10 of the rectangular tubular body 5 by attaching springs 16 and 17 which extend to the upper side of the container 7 and impart elasticity to the intake weir 12 in the opening direction. A large round hole 18 is opened at a place sandwiched between the front and rear vertical walls 14 and 15, and a dish-shaped rubber watertight bag 19 with a bellows is inserted through the round hole 18, and a flange is provided at an opening edge of the watertight bag 19. A watertight chamber 22 is formed by integrally providing 20 with the flange 20 and sandwiching the flange 20 with the edge of the watertight cover 21 at the cutting edge of the round hole 18. At the bottom of the watertight chamber 22, the watertight bag 19 and the intake weir 12 are formed. And a rivet 24, and a first hose joint 25 is provided at the center of the watertight cover 23. The running water acceleration tunnel 6 gradually narrows from the water supply line 8 side toward the paddy field side. The Doo-shaped and with and closed configuration the ends of paddy side having thereon a second hose joint 26 to the paddy end,
【０００９】上記水位感知部２は、上面が閉塞され下面
が開放され側面に通水孔２９が開設された円筒ケース３
０を構成し、この円筒ケース３０の天壁に１対の軸孔３
１、３２を開設して一方の軸孔３１にネジ棒製のフロー
トロッド３３を他方の軸孔３２にネジ棒製の移動ロッド
３４をそれぞれ上下動自在に挿通すると共に移動ロッド
３４の上端に抜落阻止用ナット３５を螺着し、またフロ
ートロッド３３の下端にフロート３６を同じく中間個所
の上下に水位上限セット用ナット３７および水位下限セ
ット用ナット３８を位置変更自在に螺合し、更にフロー
トロッド３３の上端に水位指針３９を固定し、円筒ケー
ス３０の上に水位目盛盤４０を立設すると共にフロート
ロッド３３において上記水位上・下限セット用ナット３
７、３８間の個所にアーム４１付きのリング状センサー
４２をフロートロッド３３に沿って移動自在に挿通し、
このセンサー４２のアーム４１の先端を上記移動ロッド
３４の下端にナット止めすると共に上記円筒ケース３０
の天壁の下面に垂下支持部４４を設け、この垂下支持部
４４の下端に槓杆４５を支持軸４６を介して挺動自在に
取付け、この槓杆４５の一方揺動端を上記移動ロッド３
４の中間位置に鈎形部材４７を介して連結し、更に円筒
ケース３０の天壁において槓杆４５の他方揺動端と対応
する個所に中にニードル弁体４８を内蔵したパイロット
弁４９を設け、このパイロット弁４９のニードル弁体４
８の弁ロッド５０の外端を上記槓杆４５の他方揺動端に
ピン軸５１を介して連結すると共にパイロット弁４９の
シリンダ５２においてニードル弁体４８より上方の壁に
第３ホースジョイント５３を同じく下方の壁に第４ホー
スジョイント５４を設け、第３ホースジョイント５３と
上記第１ホースジョイント２５を第１ホース５５によ
り、また第４ホースジョイント５４を第２ホースジョイ
ント２６を第２ホース５６にそれぞれ連結すると共にパ
イロット弁４９のシリンダ５２の底壁においてニードル
弁体４８の弁ロッド５０の通孔を同ニードル弁体４８の
下降によって閉じる排水口５７とし、更に上記円筒ケー
ス３０の天壁の上面に支柱５８を立設し、この支柱５８
の上端に横向きアーム５９を当該横向きアーム５９の先
端が上記移動ロッド３４の上端の抜落阻止用鉄製ナット
３５の上方に位置するようにしてナット６０により固定
すると共に当該横向きアーム５９の先端の下面に永久磁
石６１を固着したものであって、水田３の中に下の方だ
け埋め込んだ状態で設置するようにしたものである。The water level sensing portion 2 has a cylindrical case 3 whose upper surface is closed, its lower surface is opened, and water holes 29 are formed on its side surfaces.
0, and a pair of shaft holes 3 is formed on the top wall of the cylindrical case 30.
1, 32 are opened, a float rod 33 made of a threaded rod is inserted in one shaft hole 31, a movable rod 34 made of a threaded rod is inserted in the other shaft hole 32 so as to be vertically movable, and the upper end of the movable rod 34 is pulled out. A drop prevention nut 35 is screwed on, a float 36 is attached to the lower end of the float rod 33, and a water level upper limit setting nut 37 and a water level lower limit setting nut 38 are screwed to the upper and lower parts of the intermediate portion so that the position can be freely changed. A water level pointer 39 is fixed to the upper end of the rod 33, a water level graduation plate 40 is erected on the cylindrical case 30, and the water level upper / lower limit setting nut 3 of the float rod 33 is set.
A ring-shaped sensor 42 with an arm 41 is movably inserted along the float rod 33 at a position between 7 and 38,
The tip of the arm 41 of the sensor 42 is fixed to the lower end of the moving rod 34 with a nut, and the cylindrical case 30
A hanging support portion 44 is provided on the lower surface of the ceiling wall of the, and a slidable rod 45 is movably attached to a lower end of the hanging support portion 44 via a support shaft 46, and one swing end of the slidable rod 45 is attached to the moving rod 3
4 is connected to an intermediate position of 4 through a hook-shaped member 47, and a pilot valve 49 having a needle valve body 48 therein is provided at a position on the ceiling wall of the cylindrical case 30 corresponding to the other swing end of the lever 45. Needle valve body 4 of this pilot valve 49
The outer end of the valve rod 50 of No. 8 is connected to the other swing end of the rod 45 through the pin shaft 51, and the third hose joint 53 is also provided on the wall above the needle valve body 48 in the cylinder 52 of the pilot valve 49. A fourth hose joint 54 is provided on the lower wall, the third hose joint 53 and the first hose joint 25 are connected to the first hose 55, and the fourth hose joint 54 is connected to the second hose joint 26 and the second hose 56, respectively. The through hole of the valve rod 50 of the needle valve body 48 is closed in the bottom wall of the cylinder 52 of the pilot valve 49 by the lowering of the needle valve body 48, and is further connected to the upper surface of the top wall of the cylindrical case 30. The pillar 58 is erected, and this pillar 58
The lateral arm 59 is fixed to the upper end of the lateral arm 59 by the nut 60 such that the tip of the lateral arm 59 is located above the drop-out prevention iron nut 35 at the upper end of the moving rod 34, and the lower surface of the tip of the lateral arm 59 is fixed. The permanent magnet 61 is fixedly attached to the paddy field 3, and the permanent magnet 61 is installed only in the lower part of the paddy field 3.
【００１０】上記のように水田に設置した自動取水堰部
１および水位感知部２は、圃場水面６３が下限設定値に
達するとセンサー４２が水位下限セット用ナット３８に
係合し、更に水位が下がろうとすると当該センサー４２
が移動ロッド３４を引き下げ力を与え、この引き下げ力
が永久磁石６１の磁力に勝った時点で移動ロッド３４、
鈎形部材４７、センサー４２の重力によって槓杆４５が
図中において時計の針の回転方向に回転してニードル弁
体４８を閉じ状態とし、このように閉じ状態となる水密
室２２内の水は第２ホース５６および排水口５７を介し
て外に排水され、この排水に伴って取水堰１２開き水田
に給水する。また、上限設定値に達するとセンサー４２
が水位上限セット用ナット３７に係合し、更に水位が上
がろうとすると当該センサー４２が移動ロッド３４を上
昇させ且つ槓杆４５を図中において時計の針と反対の方
向に回転させてニードル弁体４８を開き且つ永久磁石６
１に移動ロッド３４の上端を吸着させると共にニードル
弁体４８の開きによって流水加速トンネル６から第１お
よび第２ホース５５、５６等を介して水密室２２内に水
が送られ、その水圧で取水堰１２が閉じ給水ライン８か
らの取水を止水する。In the automatic intake weir section 1 and the water level sensing section 2 installed in the paddy field as described above, when the field water level 63 reaches the lower limit set value, the sensor 42 engages with the water level lower limit setting nut 38, and the water level further rises. The sensor 42
Gives a downward force to the moving rod 34, and when the downward force overcomes the magnetic force of the permanent magnet 61, the moving rod 34,
Due to the gravity of the hook-shaped member 47 and the sensor 42, the lever 45 rotates in the direction of rotation of the hands of the clock in the figure to close the needle valve body 48, and the water in the watertight chamber 22 that is in the closed state is The water is drained to the outside through the 2 hose 56 and the drainage port 57, and along with this drainage, the intake weir 12 is opened and water is supplied to the paddy field. When the upper limit set value is reached, the sensor 42
Engages with the water level upper limit setting nut 37, and when the water level is about to rise further, the sensor 42 raises the moving rod 34 and rotates the lever 45 in the direction opposite to the hand of the clock in the figure to rotate the needle valve body. Open 48 and permanent magnet 6
1, the upper end of the moving rod 34 is adsorbed, and the needle valve body 48 is opened to send water from the running water acceleration tunnel 6 into the watertight chamber 22 via the first and second hoses 55, 56, etc. The weir 12 is closed to stop water intake from the water supply line 8.
【図１】本発明の実施例を水位の高くなった状態で示す
断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention in a state where the water level is high.
【図２】同じく水位が低くなって給水を始めた状態で示
す断面図である。FIG. 2 is a sectional view showing a state where the water level is lowered and water supply is started.
【図３】図１Ａ−Ａ線に沿う断面図である。FIG. 3 is a sectional view taken along the line AA of FIG.
１ 自動取水堰部 ２ 水位感知部 ３ 水田 ４ 取水口 ５ 角筒状体５ ６ 流水加速トンネル ７ 器体 ８ 給水ライン ９ ステンレスフィルター １０ 上面壁 １１ 加圧排出口 １２ 取水堰 １３ ガイド １４ 垂直壁 １５ 垂直壁 １６ バネ １７ バネ １８ 丸孔 １９ 水密パック ２０ フランジ ２１ 水密カバー ２２ 水密室 ２３ 当金 ２４ リベット ２５ 第１ホースジョイント ２６ 第２ホースジョイント ２７ シ−ル ２８ 逆止弁 ２９ 通水孔 ３０ 円筒ケース ３１、３２ 軸孔 ３３ フロートロッド ３４ 移動ロッド ３５ 抜落阻止用ナット ３６ フロート ３７ 水位上限セット用ナット ３８ 水位下限セット用ナット ３９ 水位指針 ４０ 水位目盛盤 ４１ アーム ４２ センサー ４４ 垂下支持部 ４５ 槓杆 ４６ 支持軸 ４７ 鈎形部材 ４８ ニードル弁体 ５２ シリンダ ５３ 第３ホースジョイント ５４ 第４ホースジョイント ５５ 第１ホース ５６ 第２ホース ５７ 排水口 ５８ 支柱 ５９ 横向きアーム ６０ ナット ６１ 永久磁石 ６３ 圃場水面 1 Automatic water intake weir 2 Water level detector 3 Paddy field 4 Water intake 5 Square tubular body 5 6 Flow accelerating tunnel 7 Instrument body 8 Water supply line 9 Stainless steel filter 10 Top wall 11 Pressurized outlet 12 Water intake weir 13 Guide 14 Vertical wall 15 Vertical Wall 16 Spring 17 Spring 18 Round hole 19 Watertight pack 20 Flange 21 Watertight cover 22 Watertight chamber 23 Dowel 24 Rivet 25 First hose joint 26 Second hose joint 27 Seal 28 Check valve 29 Water passage hole 30 Cylindrical case 31 , 32 Shaft hole 33 Float rod 34 Moving rod 35 Drop-prevention nut 36 Float 37 Water level upper limit setting nut 38 Water level lower limit setting nut 39 Water level indicator 40 Water level scale 41 Arm 42 Sensor 44 Drooping support 45 Ladle 46 Support shaft 47 Hook-shaped member 48 Needle valve body 52 Sunda 53 third hose joint 54 fourth hose joint 55 first hose 56 second hose 57 discharge port 58 struts 59 transverse arm 60 nut 61 permanent magnet 63 field water surface
Claims (1)
ロートにより水位調節用下限セットが下がって水位セン
サーを押し下げ、水位センサーが下限を感知したときに
パイロット弁により水密バック内の水が排水され、この
排水に伴って取水堰が給水ラインの水圧により開いて給
水ラインから取水し、 圃場水面が設定値以上になったときにフロートにより水
位調節用上限セットが上がって水位センサーを押し上
げ、水位センサーが上限を感知したときにパイロット弁
により水密バック内に給水ラインから流水加速トンネル
を介して水が加圧され、この加圧により取水堰が閉じて
止水するようにしたことを特徴とする灌漑用自動取水
器。1. When the water level in the field falls below a set value, the float lowers the water level adjustment lower limit set to push down the water level sensor, and when the water level sensor detects the lower limit, the pilot valve drains the water in the watertight bag. With this drainage, the intake weir opens due to the water pressure of the water supply line and takes in water from the water supply line.When the water level in the field rises above the set value, the float raises the water level adjustment upper limit set and pushes up the water level sensor. When the sensor senses the upper limit, the pilot valve pressurizes the water from the water supply line into the watertight bag through the running water acceleration tunnel, and this pressurization closes the intake weir to stop the water. Automatic water intake for irrigation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27842795A JPH0998678A (en) | 1995-10-02 | 1995-10-02 | Automatic water intake device for watering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27842795A JPH0998678A (en) | 1995-10-02 | 1995-10-02 | Automatic water intake device for watering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0998678A true JPH0998678A (en) | 1997-04-15 |
Family
ID=17597201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27842795A Pending JPH0998678A (en) | 1995-10-02 | 1995-10-02 | Automatic water intake device for watering |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0998678A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005046128A (en) * | 2003-07-29 | 2005-02-24 | Itsubun Nakai | Automatic watering device for paddy field |
| JP2008133588A (en) * | 2006-11-27 | 2008-06-12 | Asahi Organic Chem Ind Co Ltd | Automatic water supply system |
| CN103907500A (en) * | 2013-01-04 | 2014-07-09 | 张振华 | Series pressure regulation type negative pressure infiltrating irrigation system |
| JP2015038293A (en) * | 2013-08-19 | 2015-02-26 | 西日本圃場改良株式会社 | Water level regulator |
| CN108887146A (en) * | 2018-07-04 | 2018-11-27 | 刘凤红 | A kind of irrigation rig |
| CN108887150A (en) * | 2018-07-04 | 2018-11-27 | 刘凤红 | A kind of irrigation rig based on cloud computing |
| JP2021114966A (en) * | 2020-01-28 | 2021-08-10 | 元美 北野 | Intermittent irrigation and full-water equilibrium plug |
-
1995
- 1995-10-02 JP JP27842795A patent/JPH0998678A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005046128A (en) * | 2003-07-29 | 2005-02-24 | Itsubun Nakai | Automatic watering device for paddy field |
| JP4598378B2 (en) * | 2003-07-29 | 2010-12-15 | 逸文 中井 | Automatic water supply system for paddy fields |
| JP2008133588A (en) * | 2006-11-27 | 2008-06-12 | Asahi Organic Chem Ind Co Ltd | Automatic water supply system |
| CN103907500A (en) * | 2013-01-04 | 2014-07-09 | 张振华 | Series pressure regulation type negative pressure infiltrating irrigation system |
| JP2015038293A (en) * | 2013-08-19 | 2015-02-26 | 西日本圃場改良株式会社 | Water level regulator |
| CN108887146A (en) * | 2018-07-04 | 2018-11-27 | 刘凤红 | A kind of irrigation rig |
| CN108887150A (en) * | 2018-07-04 | 2018-11-27 | 刘凤红 | A kind of irrigation rig based on cloud computing |
| JP2021114966A (en) * | 2020-01-28 | 2021-08-10 | 元美 北野 | Intermittent irrigation and full-water equilibrium plug |
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