JPH05104034A - Spray nozzle - Google Patents
Spray nozzleInfo
- Publication number
- JPH05104034A JPH05104034A JP29988091A JP29988091A JPH05104034A JP H05104034 A JPH05104034 A JP H05104034A JP 29988091 A JP29988091 A JP 29988091A JP 29988091 A JP29988091 A JP 29988091A JP H05104034 A JPH05104034 A JP H05104034A
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- Prior art keywords
- spray
- nozzle
- jet
- flow
- flow rate
- 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.)
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Links
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、微量の薬液を広い面積
に散布するのに適した噴霧ノズルに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spray nozzle suitable for spraying a small amount of chemical liquid over a wide area.
【０００２】[0002]
【従来技術】農薬を散布する場合、現在、一般には、濃
度の高い原液を数拾倍から数千倍の範囲で、水で希釈す
ることにより、散布用の希釈薬液をタンク内に調整し、
これを動力噴霧器等によって、吐出圧を、少なくとも７
kg／cm2以上とし、毎分の噴霧量が１．２リットル以上
とすることにより、適当な噴霧粒子と噴霧角度が得られ
るように構成されている。2. Description of the Related Art When spraying pesticides, generally, a concentrated chemical solution is diluted several times to several thousand times with water to prepare a diluted chemical solution for spraying in a tank,
Use a power atomizer to adjust the discharge pressure to at least 7
By setting the amount to be kg / cm 2 or more and the spray amount per minute to be 1.2 liters or more, it is configured to obtain an appropriate spray particle and spray angle.
【０００３】従って、従来の噴霧器を用いるには、水の
便が良いこと、少なくとも大量の水を散布現場に容易に
運搬できること、薬液圧送用の長いホースを引張りなが
ら薬液散布を行うため、ホースの誘導の邪魔になる立木
や岩石などが、あまりないことが、必須であるが、例え
ば、山地などにおいて農薬などを散布する場合は、これ
らの条件を満すことは困難であって、強いてこれを行う
とすれば、背中に２０リットル前後の容量の薬液タンク
を背負って散布を行い、タンクが空になったら、自動車
で搬送してきた大型タンクのところへ戻って、薬液を充
たすといった行為を繰り返すより他なかった。Therefore, when the conventional sprayer is used, the convenience of water is good, at least a large amount of water can be easily transported to the spraying site, and the chemical solution is sprayed while pulling a long hose for pumping the chemical solution. It is essential that there are not many standing trees or rocks that hinder the guidance, but for example, when spraying pesticides in the mountains, it is difficult to meet these conditions, and it is necessary to force this. Rather than repeating the act of spraying with a liquid tank of about 20 liters on the back and spraying, when the tank is empty, return to the large tank transported by car and fill the liquid. There was no other.
【０００４】このようなことから、薬液を、その散布目
的を達成できる限度において、できる限り高濃度にし
て、散布することにより、希釈用の水を必要とせず、従
来の散布量の少なくとも拾数分の１程度の薬液散布で所
期の目的を達成するようにすることが考えられる。しか
しながら、少量の薬液を、均一に、且つ、広い噴霧角を
保って、能率よく散布するためには、出来るだけ粒径を
細かくすること、しかも、風などによって飛散して散布
対象外の植物に薬剤がかからないように到達性をよくす
ること、又、散布者の移動速度や散布操作には限度があ
るので、噴霧量は、濃度の高い分だけ、少なくする必要
があり、従って、例えば、少なくとも毎分７０〜８０cc
位の吐出量におさえて、しかも、十分な広角(９０度位)
散布ができ、又、霧が風によって飛ばされずに目的面に
指向性よく到達できるなどの、相互に、矛盾した課題を
同時に解決することを必要とし、このような点を総て満
足する噴霧器は、未だ知られていない。[0004] Therefore, by diluting the chemical solution to a concentration as high as possible within the range where the spraying purpose can be achieved, water for dilution is not required, and at least the number of times of spraying of the conventional spraying quantity can be increased. It may be possible to achieve the intended purpose by spraying the drug solution at about one-third. However, in order to spray a small amount of chemical liquid evenly and with a wide spray angle, in order to spray it efficiently, make the particle size as small as possible, and in addition, scatter it by wind etc. Since the reachability should be improved so as not to be exposed to chemicals, and the sprayer's moving speed and spraying operation are limited, it is necessary to reduce the spray amount due to the high concentration. Therefore, for example, at least 70-80cc per minute
Wide angle (90 degrees)
It is necessary to simultaneously solve mutually contradictory problems, such as spraying, and the fog being able to reach the target surface with good directionality without being blown by the wind. A sprayer that satisfies all of these points is necessary. , Not yet known.
【０００５】本発明者は、少量の薬液を広角散布でき、
しかも、噴霧の指向性に優れる噴霧ノズルとして、図６
に示すような公知の噴霧ノズルに着目して、この改良を
企図した。これは、公知の網状のストレーナ５１を通過
した加圧薬液が、噴口５２からジェット流となって突出
して、コア５３に衝突し、更に、ジェット流の噴出によ
って生じた陰圧により、外筒５６に設けた空気導入口５
９を通り、更に透孔５４から入った空気と、混和室５５
で混和して、微細な泡状体となり、これが、ノズル盤５
７にプレス成型により膨出形成した水路５７aに沿っ
て、その頂部に至り、該頂部に、水路５７aと直交方向
に穿設したスリット５８において、互に衝突干渉して、
スリット５８の長さ方向に(図６において紙面の表裏方
向に)偏平扇状に、微細な気泡が散布されるように構成
されている。The inventor of the present invention can spray a small amount of liquid medicine at a wide angle,
Moreover, as a spray nozzle having excellent directivity of spraying, as shown in FIG.
This improvement was intended by paying attention to a known spray nozzle as shown in FIG. This is because the pressurized chemical liquid that has passed through the well-known mesh strainer 51 projects from the injection port 52 as a jet flow, collides with the core 53, and further due to the negative pressure generated by the jetting of the jet flow, the outer cylinder 56. Air inlet 5 provided in
9 and the air entering through the through hole 54 and the mixing chamber 55
It mixes in to form a fine foam, which is the nozzle board 5
7, along the water channel 57a bulged by press molding, to the top of the water channel 57a, in the slit 58 bored in the direction orthogonal to the water channel 57a, colliding and interfering with each other,
It is configured such that fine air bubbles are dispersed in a flat fan shape in the length direction of the slit 58 (in the front-back direction of the paper surface in FIG. 6).
【０００６】本発明者は、これを吐出量に見合うように
縮小することにより目的を達成すことを試みたが、微細
気泡を得ようとすると吐出圧が不足となって広角噴射が
えられず、又、反対に、コア５３などを取り除いたりし
て、圧力損失などを軽減すると、ノズル開口５２の径
は、０．２〜０．３mm程度しかないため、殆ど線条の状
態で、径を縮小したオリフィス５８を通過してしまって
目的を達成することができなかった。The present inventor has attempted to achieve the object by reducing the discharge amount to match the discharge amount, but when trying to obtain fine bubbles, the discharge pressure becomes insufficient and wide-angle injection cannot be obtained. On the contrary, when the pressure loss is reduced by removing the core 53 or the like, the diameter of the nozzle opening 52 is only about 0.2 to 0.3 mm. The object could not be achieved because it passed through the reduced orifice 58.
【０００７】[0007]
【発明の目的】本発明は、このような状況の下になされ
たものであって、少なくとも、従来の噴霧器の１０分の
１以下の薬液吐出量で、従来と同一の面積に均一に、且
つ、確実に散布できる噴霧ノズルを開示することを目的
とするものである。SUMMARY OF THE INVENTION The present invention has been made under such circumstances, and at least the amount of the chemical liquid discharged is one-tenth or less of that of the conventional atomizer, and the area is uniform and the same as the conventional one. It is an object of the present invention to disclose a spray nozzle that can be reliably sprayed.
【０００８】[0008]
【発明の構成】本発明の要旨は、手動ポンプ、或は、電
池駆動によるギアポンプなどの薬液圧送手段からの薬液
を導く、薬液導管側への接続部を一側に有すると共に、
側面に通気孔を有する管体を、中心に流量制限噴口が穿
設されているジェット流発生部材によって該部材からの
ジェット流噴出側が、前記通気孔と連通する状態で閉塞
し、前記流量制限噴口に近接して、この噴口の口径よ
り、やや大径の気泡発生流路の一端を臨ましめると共
に、この気泡発生流路の他端を前記管体の他側に設けた
噴霧形成ノズルに連通せしめたことを特徴とする噴霧ノ
ズルにある。SUMMARY OF THE INVENTION The gist of the present invention is to have, on one side, a connection portion to a chemical liquid conduit side for guiding a chemical liquid from a chemical liquid pressure feeding means such as a manual pump or a battery-driven gear pump.
The pipe body having a vent hole on the side surface is closed by a jet flow generating member having a flow rate limiting jet hole formed in the center so that the jet flow jetting side from the member communicates with the vent hole, and the flow rate limiting jet port is formed. Close to, and one end of the bubble generation flow channel of a slightly larger diameter than the diameter of this nozzle is exposed, and the other end of this bubble generation flow channel is connected to the spray forming nozzle provided on the other side of the pipe body. It is in a spray nozzle characterized by that.
【０００９】上記において、流量制限噴口の直径に対し
て、気泡発生流路の直径は、通常、前者の２〜４倍の範
囲で選択されるのが最も好ましい。又、該流路の長さ
は、必要な噴霧圧が得られる限度で、できる丈長い方が
よい。例えば、流量制限噴口の径が０．２〜０．４mmの
範囲であるとき、気泡発生流路の径は、０．６〜１．６
mm、長さは、５〜１０mmの範囲で適宜選択されるのが好
ましい。又、通気孔からの空気が気泡発生流路に吸入さ
れるためには、当然のことながら、流量制限噴口の開口
面積よりも噴霧形成ノズル開口面積の方が大きいことを
必要とするが、これらの開口面積及び気泡発生流路の径
の選択は、最良の噴霧状態を得るのに重要であり、相互
の関連を考慮して定められる。以下、実施例に基づいて
詳細に説明する。In the above description, it is most preferable that the diameter of the bubble generating passage is usually selected within the range of 2 to 4 times the diameter of the flow rate limiting nozzle. Further, the length of the flow path is preferably as long as possible within the limit that a necessary spray pressure can be obtained. For example, when the diameter of the flow rate limiting injection port is in the range of 0.2 to 0.4 mm, the diameter of the bubble generation flow channel is 0.6 to 1.6.
It is preferable that the mm and the length are appropriately selected within the range of 5 to 10 mm. In addition, in order for the air from the ventilation hole to be sucked into the bubble generation flow path, it is naturally necessary that the opening area of the spray forming nozzle is larger than the opening area of the flow rate limiting injection port. The selection of the opening area and the diameter of the bubble generating flow path is important for obtaining the best spray state, and is determined in consideration of the mutual relation. Hereinafter, a detailed description will be given based on examples.
【００１０】[0010]
【実施例１】図１は、本発明の第一実施例であって、管
体としての円筒管２は、側面に通気孔２a、２a、…が穿
設されており、その一側内面に薬液導管６０側への接続
部としての雌ねじ部２bが刻設されている。該円筒管２
の他側は、管端から一体に延設した閉塞部２cによっ
て、中心付近の嵌合孔２eを除いて閉塞されている。こ
のような円筒管２中には、ジェット流発生部材としての
キャップ状体３が、円筒管２の内周面に設けた段部２d
に、キャップ状体３のひさし部３bが係合する状態で嵌
着している。First Embodiment FIG. 1 is a first embodiment of the present invention, in which a cylindrical tube 2 as a tubular body is provided with ventilation holes 2a, 2a, ... On its side surface and an inner surface on one side thereof. A female screw portion 2b is engraved as a connecting portion to the chemical liquid conduit 60 side. The cylindrical tube 2
The other side is closed by a closing portion 2c integrally extending from the pipe end except for the fitting hole 2e near the center. In such a cylindrical tube 2, a cap-like body 3 as a jet flow generating member is provided with a step portion 2d provided on the inner peripheral surface of the cylindrical tube 2.
The cap-shaped body 3 is fitted in the cap-shaped body 3 in a state of being engaged therewith.
【００１１】４aは、ストレーナ網で、該ひさし部３b
と、雌ねじ部２bに螺合してキャップ状体３を固定する
為の押えリング４bとに挟持固定されている。４cは、ス
トレーナ網４aの周縁と、一体化状態で設けられたゴム
製シール材である。キャップ状体３の頂部中心には、直
径が０．３mm前後の微細な流量制限噴口３aが穿設され
ており、該噴口３aから、ひさし部３bに向かって中途ま
で、空気を滑らかに誘導するためのなだらかな略球面を
なしている。Reference numeral 4a denotes a strainer net, which is the eaves portion 3b.
And a holding ring 4b for fixing the cap-like body 3 by being screwed into the female screw portion 2b. Reference numeral 4c is a rubber seal material provided integrally with the peripheral edge of the strainer net 4a. At the center of the top of the cap-like body 3, a minute flow-rate restricting nozzle 3a having a diameter of about 0.3 mm is bored, and air is smoothly guided from the nozzle 3a toward the eaves part 3b to the middle. It has a gentle, almost spherical surface.
【００１２】この球面から僅か隔てて、通気孔２aが位
置している。この噴口３aに極く近接して(例えば、噴口
が０．３mm前後で、薬液圧送ポンプの吐出圧が３kg／cm
2前後とした場合、０．３〜０．６mm前後の間隙をおい
て、)、気泡発生流路５の一端５aが、中心を揃えて臨ま
しめてある。気泡発生流路５は、内径が、前記噴口３a
の数倍程度の直管６の中途にフランジ部６ａを穿設した
形状をなしており、該フランジ部６aを堺に、一側の直
管部６ｂが前記円筒管２の嵌合孔２eに嵌入し、他側の
直管部６cが、扇形噴射パターンを有する噴霧形成ノズ
ル盤７中に嵌入している。A vent hole 2a is located slightly apart from this spherical surface. Very close to this nozzle 3a (For example, if the nozzle is about 0.3mm, the discharge pressure of the chemical liquid pressure pump is 3kg / cm.
In the case of about 2 ), one end 5a of the bubble generation flow path 5 faces the center with a gap of about 0.3 to 0.6 mm. The bubble generation flow path 5 has an inner diameter of the injection port 3a.
A flange portion 6a is formed in the middle of the straight pipe 6 which is several times larger than that of the straight pipe 6, and the straight pipe portion 6b on one side is formed in the fitting hole 2e of the cylindrical pipe 2 with the flange portion 6a as a Sakai. The straight pipe portion 6c on the other side is fitted into the spray forming nozzle disk 7 having a fan-shaped jet pattern.
【００１３】噴霧形成ノズル盤７は、直管６の外径に等
しい大径部７aと、気泡発生流路の径に略等しい小径部
７bとを有する一連の通液孔と、該小径部７bの端部に形
成されたドーム状部７cを、中心から２分するスリット
状開口７dとを有し、前記直管部６cは、大径部７a中に
嵌入しており、噴霧形成ノズル盤７の外縁部７eに係合
する締付リング８が、前記円筒管２の外周面に螺着し
て、フランジ部６aを介して、外縁部７eを円筒管２に圧
接して固定して成るものである。The spray forming nozzle board 7 has a series of liquid passage holes having a large diameter portion 7a equal to the outer diameter of the straight pipe 6 and a small diameter portion 7b substantially equal to the diameter of the bubble generating passage, and the small diameter portion 7b. Has a dome-shaped portion 7c formed at the end of the spray opening, and a slit-shaped opening 7d that bisects the center of the dome-shaped portion. The straight pipe portion 6c is fitted in the large-diameter portion 7a. A fastening ring 8 engaging with the outer edge portion 7e of the above is screwed to the outer peripheral surface of the cylindrical tube 2 and is fixed by pressing the outer edge portion 7e to the cylindrical tube 2 via the flange portion 6a. Is.
【００１４】[0014]
【作用】上記実施例に係る噴霧ノズル１は、バッテリー
などによって駆動されるギヤポンプや２０リットル前後
の背負式タンクに一体的に組み込まれた手動ポンプ等に
よって、例えば、３kg／cm2程度の低圧で圧送される薬
液が、把手付近に管路開閉コック(図示せず)を備えた噴
霧竿の先端６０から、円筒管２中に入り、次に吐出量が
毎分８０cc前後になるように設けられた微細な流量制限
噴口３aから、ジェット流となって気泡発生流路５中に
入る。The spray nozzle 1 according to the above embodiment is operated at a low pressure of, for example, about 3 kg / cm 2 by a gear pump driven by a battery or a manual pump integrally incorporated in a backpack type tank of about 20 liters. The chemical liquid to be fed under pressure enters into the cylindrical pipe 2 from the tip 60 of the spray rod equipped with a pipe opening / closing cock (not shown) near the handle, and then the discharge amount is set to about 80 cc / min. A jet flow enters the bubble generation flow path 5 from the minute flow rate limiting injection port 3a.
【００１５】このとき該流路５中には陰圧が発生するの
で、通気孔２aから導入される外気は、ジェット流を円
形に包囲する状態で、ほぼジェット流の方向と直角の方
向からジェット流に向けて集中し、気泡発生流路中に伴
送される。この流路５中で気液が混合されて微細な気泡
状となり、体積を数倍に膨張させて、噴霧ノズル形成盤
に突入し、更に、ドーム状部７cに沿って案内されて、
スリット状開口に至った気泡流は、該開口において、衝
突干渉し合って、該スリット状開口７dの長手方向に扇
形に拡がる偏平な噴射パターンをなして散布される。At this time, since a negative pressure is generated in the flow path 5, the outside air introduced from the ventilation hole 2a is jetted from a direction substantially perpendicular to the direction of the jet flow while surrounding the jet flow in a circular shape. It concentrates towards the flow and is entrained in the bubble generation channel. In this flow path 5, gas and liquid are mixed to form fine bubbles, the volume of which is expanded several times, the liquid enters the atomizing nozzle forming plate, and is guided along the dome-shaped portion 7c.
The bubbly flow reaching the slit-shaped opening collides and interferes with each other in the opening, and is sprayed in a flat jet pattern that spreads in a fan shape in the longitudinal direction of the slit-shaped opening 7d.
【００１５】上記実施例において、噴霧量を更に少なく
する目的で、より小さな流量制限噴口３aを有するキャ
ップ状体に取り替えた場合、気泡発生流路をそれに応じ
て小径のものを用いてもよいが、図１において、ストレ
ーナ網４a及び押えリング４bの代りに、図２に示すよう
な、押えリング４bと同一のリング部材２１に、渦流生
成板２２を一体的に設けて成る渦流生成リング２０を取
り付ければ、加圧薬液は、先ず、渦流生成板２２の周縁
部に穿設された螺旋状流路２３、２３を通過して、キャ
ップ状体３内で、渦流となったのち、噴口３aから突出
するのでジェット流の拡がりが大きくなって気泡の生成
が容易になる。この場合、キャップ状体内側空間が渦流
生成室となる。In the above embodiment, when the cap-shaped body having the smaller flow-rate limiting nozzle 3a is replaced for the purpose of further reducing the spray amount, the bubble-generating passage may have a smaller diameter accordingly. In FIG. 1, instead of the strainer net 4a and the holding ring 4b, a vortex generation ring 20 is integrally formed with a vortex generation plate 22 on the same ring member 21 as the holding ring 4b as shown in FIG. Once attached, the pressurized chemical solution first passes through the spiral flow passages 23, 23 formed in the peripheral portion of the vortex flow generation plate 22, becomes a vortex in the cap-shaped body 3, and then from the injection port 3a. Since it projects, the spread of the jet flow becomes large and the bubbles are easily generated. In this case, the space inside the cap-shaped body serves as the vortex flow generation chamber.
【００１６】又、渦流生成板２２に代えて、図３及び図
４に示すように、キャップ状体１３の外面に、流量制限
噴口１３aを取り囲む円形膨出部１３bを突設して、該膨
出部１３bを気泡発生流路の端部５aに密接すると共に、
該膨出部１４の内周円の接線方向に外気を導入する一対
の空気導入用切欠部１５、１５を刻設すれば、気泡発生
流路５中に入る空気は旋回して入るので、同様に気泡発
生が容易となる。Further, instead of the vortex flow generating plate 22, as shown in FIGS. 3 and 4, a circular bulging portion 13b surrounding the flow rate limiting injection port 13a is projected on the outer surface of the cap-shaped body 13, and the bulging portion is expanded. While closely contacting the outlet portion 13b with the end portion 5a of the bubble generation flow path,
If a pair of air-introducing notches 15 for introducing the outside air are engraved in the tangential direction of the inner circumferential circle of the bulging portion 14, the air entering the bubble generating flow path 5 swirls and enters, It is easy to generate bubbles.
【００１７】[0017]
【実施例２】図５は、本発明の第二実施例であるが、前
述の第一実施例との主たる相違は、ジェット流発生部材
として、円板３３の中心に流量制限噴口３３aを穿設し
たものを使用していること、気泡発生流路３５の他端
が、渦流生成板３６、渦流室３７、該渦流室３７の一面
をなす噴口板３８を備えた円錐状噴射パターンを有する
噴霧形成ノズルに連通している点である。３１は筒状薬
液流路をなす円筒管、３２は通気孔、３６aは渦流生成
板３６に穿設した螺旋状流路、３８ａは、締付リング、
３０a〜cはシール材である。[Second Embodiment] FIG. 5 shows a second embodiment of the present invention. The main difference from the first embodiment described above is that the flow restricting injection port 33a is formed in the center of the disc 33 as a jet flow generating member. A spray having a conical spray pattern in which the other end of the bubble generation flow path 35 is provided with a swirl flow generation plate 36, a swirl flow chamber 37, and a jet port plate 38 forming one surface of the swirl flow chamber 37. This is the point of communication with the forming nozzle. Reference numeral 31 is a cylindrical tube forming a tubular chemical liquid flow path, 32 is a vent hole, 36a is a spiral flow path formed in the vortex flow generation plate 36, 38a is a tightening ring,
30a-c are sealing materials.
【００１８】[0018]
【作用】このような構成から成る噴霧ノズルは、噴口３
３aからの突出ジェット流が、この噴口に近接して臨ま
しめた気泡発生流路３５の一端から、該流路中に入って
気泡を生成し、これが螺旋状流路を経て、渦流室３７に
入って渦流となり、ノズル開口３９から、円錐状噴射パ
ターンをなして、噴霧される。The atomizing nozzle having the above-mentioned structure has the nozzle 3
The projecting jet flow from 3a enters into the flow path 35 from one end of the bubble generation flow path 35 which is brought close to this jet port, and generates bubbles, which pass through the spiral flow path and then the swirl chamber 37. It enters into a vortex and is sprayed from the nozzle opening 39 in a conical spray pattern.
【００１９】[0019]
【効果】本願発明に係る噴霧ノズルは、流量制限噴口３
a、３３aと、これに見合った小径の気泡発生流路との組
み合せにより、例えば、従来不可能であった３kg／cm2
といった低吐出圧のポンプを用いて、毎分７０〜８０cc
前後の少量の薬液を広角(噴霧角９０度前後)を保って散
布できるようにしたものであり、このような少量の農薬
を、空気を包み込んだ気泡粒子(平均粒径が数百ミクロ
ン程度)として散布するので、従来のように、極超微粒
子が殆ど含まれておらず、風に飛ばされるおそれがな
く、目的物に確実に散布することができる。従って、薬
液の損失がなく、又作業者が農薬を浴びるといった危険
が極めて少ない。又、泡状であるため、各粒子は、散布
対象の表面に付着しても、しばらくは、気泡状態を保つ
ので、これが光を乱反射及び屈折するので、付着面が非
付着面に対して判然と白く見え、二重散布や、目的対象
以外への散布を未然に防止できる。又、ジェット発生部
材や気泡発生流路は、実施例のように交換可能に構成し
ておけば、散布量の調節可能範囲が大きくなる。[Effect] The spray nozzle according to the present invention has a flow rate limiting injection port 3
Due to the combination of a and 33a with a small-diameter bubble generation flow channel corresponding to this, for example, 3 kg / cm 2 which was impossible in the past.
70-80 cc / min using a low discharge pressure pump such as
A small amount of chemical solution before and after can be sprayed while maintaining a wide angle (spray angle of about 90 degrees). Such a small amount of pesticide is bubble particles enclosing air (average particle size is about several hundred microns). Therefore, unlike the conventional method, it contains almost no ultrafine particles, there is no fear of being blown by the wind, and it is possible to reliably spray the target substance. Therefore, there is no loss of the chemical liquid, and the risk that the worker is exposed to the pesticide is extremely small. In addition, since the particles are foamy, even if they adhere to the surface of the object to be sprayed, they remain in a bubble state for a while, and this diffusely reflects and refracts light. It looks white and can prevent double spraying and spraying to other than the target. Further, if the jet generating member and the bubble generating flow path are configured to be exchangeable as in the embodiment, the adjustable range of the spray amount becomes large.
【００２０】本願噴霧ノズルを、例えば、前記のような
吐出量に設定したとすれば、１０アールの散布対象を、
凡そ、２．５リットルの薬液で均一散布ができ、一方、
従来の噴霧ノズルで均一散布を行う場合は、少なくと
も、２５０〜３００リットル以上の薬液量を散布しない
限り、途中で薬液がなくなってしまって散布できない状
態になってしまっていた。従って、本願噴霧ノズルは、
薬効上必要な最低限度の希釈濃度の農薬を、散布するこ
とができるので、水の便の悪いところや急斜面など作業
環境の悪いところでも、作業が楽であり、又、農薬の希
釈作業の必要性がない場合は、販売ケースをそのまま薬
液タンクとして使用できるなど、手間が省け、且つ、農
薬汚染の危険も少ない等の優れた効果が期待できる。If the spray nozzle of the present application is set to, for example, the discharge amount as described above, a spray target of 10 are is
Approximately 2.5 liters of chemical solution can be applied evenly, while
In the case of performing uniform spraying with a conventional spray nozzle, unless the amount of the drug solution is at least 250 to 300 liters, the drug solution runs out on the way and it becomes impossible to spray. Therefore, the spray nozzle of the present application,
Since it is possible to spray the minimum concentration of pesticide required for its medicinal effect, it is easy to work even in poor working conditions such as poor water access or steep slopes, and it is necessary to dilute pesticide. If it does not have such a property, the sales case can be used as it is as a chemical liquid tank, and it is possible to expect excellent effects such as saving labor and reducing the risk of pesticide contamination.
【図１】本発明の一実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】本発明の他の実施例の要部を示す部分断面図で
ある。FIG. 2 is a partial cross-sectional view showing the main parts of another embodiment of the present invention.
【図３】本発明の更に他の実施例の要部を示す平面図で
ある。FIG. 3 is a plan view showing a main part of still another embodiment of the present invention.
【図４】図３のＡ−Ａ断面図である。4 is a cross-sectional view taken along the line AA of FIG.
【図５】本発明の他の実施例を示す断面図である。FIG. 5 is a sectional view showing another embodiment of the present invention.
【図６】従来技術の一例を示す説明図である。FIG. 6 is an explanatory diagram showing an example of a conventional technique.
２ａ 通気孔 ３，１３ キャップ状体 ３ａ，３３ａ 流量制限ふんこう ４ａ ストレーナ網 ５，３５ 気泡発生流路 ３７ 渦流室 ３９ 噴口 2a Vent hole 3,13 Cap-shaped body 3a, 33a Flow rate limiting funnel 4a Strainer net 5,35 Bubble generating flow path 37 Vortex chamber 39 Jet port
Claims (6)
共に、側面に通気孔を有する管体を、中心に流量制限噴
口を有するジェット流発生部材によって、該ジェット流
発生部材からの薬液噴出側が前記通気孔と連通する状態
で閉塞し、前記流量制限噴口に近接して、該噴口の口径
より若干大径の気泡発生流路の一端を臨ましめると共
に、該気泡発生流路の他端を前記管体の他側に設けた噴
霧形成ノズルに連通せしめたことを特徴とする噴霧ノズ
ル。1. A chemical liquid from a jet flow generating member, comprising a pipe body having a connecting portion to the chemical liquid conduit side on one side, a side surface having a vent hole, and a jet flow generating member having a flow rate limiting nozzle at the center. The jet side is closed in a state of communicating with the vent hole, and one end of a bubble generation flow channel having a diameter slightly larger than the diameter of the injection port is exposed in the vicinity of the flow rate limiting jet port and the other end of the bubble generation flow channel Is communicated with a spray forming nozzle provided on the other side of the tubular body.
口径の３〜４倍である請求項１の噴霧ノズル。2. The spray nozzle according to claim 1, wherein the diameter of the bubble generation flow passage is 3 to 4 times the diameter of the flow rate limiting injection port.
該スリット状開口に向かって、該開口の長手方向に直角
な方向から薬液を導く導液面とを有して成る扇形噴射パ
ターンを有する噴霧形成ノズルであり、気泡発生流路の
他端が前記導液面に対向して臨ましめてある請求項１又
は２記載の噴霧ノズル。3. The spray forming nozzle has a slit-shaped opening,
A spray forming nozzle having a fan-shaped jet pattern having a liquid-conducting surface that guides a chemical liquid from a direction perpendicular to the longitudinal direction of the slit-shaped opening, and the other end of the bubble generation flow path is the above-mentioned. The spray nozzle according to claim 1 or 2, wherein the spray nozzle faces the liquid guide surface.
入して流路を遮断するキャップ状体である請求項１〜３
のいづれかに記載の噴霧ノズル。4. The jet-generating member is a cap-like member that is fitted into the tubular chemical liquid flow path to block the flow path.
A spray nozzle according to any one of the above.
成室が設けられている請求項１〜４のいづれかに記載の
噴霧ノズル。5. The spray nozzle according to claim 1, wherein a vortex flow generating chamber is provided adjacent to the upstream side of the flow rate limiting injection port.
一面をなす噴口板とから成る円錐状噴射パターンを有す
る噴霧形成ノズルである請求項１又は２記載の噴霧ノズ
ル。6. The spray nozzle according to claim 1, wherein the spray forming nozzle is a spray forming nozzle having a conical spray pattern composed of a swirl chamber and a nozzle plate forming one surface of the swirl chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29988091A JPH05104034A (en) | 1991-10-18 | 1991-10-18 | Spray nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29988091A JPH05104034A (en) | 1991-10-18 | 1991-10-18 | Spray nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05104034A true JPH05104034A (en) | 1993-04-27 |
Family
ID=17878067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29988091A Pending JPH05104034A (en) | 1991-10-18 | 1991-10-18 | Spray nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05104034A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020014291A (en) * | 2000-08-17 | 2002-02-25 | 하용호 | Devices and process for out power up on a fluid |
| JP2005262012A (en) * | 2004-03-16 | 2005-09-29 | Asaba Manufacturing Inc | Spray state changeover type jet pipe and manifold valve thereof |
| JP2005319365A (en) * | 2004-05-07 | 2005-11-17 | Asaba Manufacturing Inc | Small-amount foaming and sprinkling or large amount sprinkling changeover type spray nozzle |
| WO2007123069A1 (en) * | 2006-04-18 | 2007-11-01 | Ishihara Sangyo Kaisha, Ltd. | Method of spraying pesticide to plant or soil |
-
1991
- 1991-10-18 JP JP29988091A patent/JPH05104034A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020014291A (en) * | 2000-08-17 | 2002-02-25 | 하용호 | Devices and process for out power up on a fluid |
| JP2005262012A (en) * | 2004-03-16 | 2005-09-29 | Asaba Manufacturing Inc | Spray state changeover type jet pipe and manifold valve thereof |
| JP4527421B2 (en) * | 2004-03-16 | 2010-08-18 | 株式会社麻場 | Spray state switching type injection pipe and its manifold valve |
| JP2005319365A (en) * | 2004-05-07 | 2005-11-17 | Asaba Manufacturing Inc | Small-amount foaming and sprinkling or large amount sprinkling changeover type spray nozzle |
| WO2007123069A1 (en) * | 2006-04-18 | 2007-11-01 | Ishihara Sangyo Kaisha, Ltd. | Method of spraying pesticide to plant or soil |
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