JPH0720563B2 - Fluid oscillation element nozzle - Google Patents
Fluid oscillation element nozzleInfo
- Publication number
- JPH0720563B2 JPH0720563B2 JP12507890A JP12507890A JPH0720563B2 JP H0720563 B2 JPH0720563 B2 JP H0720563B2 JP 12507890 A JP12507890 A JP 12507890A JP 12507890 A JP12507890 A JP 12507890A JP H0720563 B2 JPH0720563 B2 JP H0720563B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- main nozzle
- nozzle
- fluid
- width
- 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.)
- Expired - Fee Related
Links
Landscapes
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
- Nozzles (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、例えば衛生洗浄便座や入浴シャワー装置等の
洗浄装置に利用される流体発振素子ノズルに関する。The present invention relates to a fluid oscillating element nozzle used for a cleaning device such as a sanitary cleaning toilet seat or a bath shower device.
［従来の技術］ 最近、例えば衛生洗浄便座や入浴シャワーなどの洗浄装
置には、水流の持つ圧力差を利用して噴射水が左右に発
振する流体発振素子を利用したノズルが一部で使われて
いる。このような流体発振素子ノズルは可動部がなく、
シンプルな構造であるためメンテナンスが不要で、しか
も安価に製造できる。さらに水流の持つ水圧で噴射水が
連続的に発振するため洗浄効果が高く、快適感が向上す
るという特徴を持つ。[Prior Art] Recently, for example, in a cleaning device such as a sanitary washing toilet seat or a bathing shower, a nozzle using a fluid oscillation element in which jetted water oscillates left and right by utilizing a pressure difference of water flow is partially used. ing. Such a fluid oscillating element nozzle has no moving parts,
The simple structure requires no maintenance and can be manufactured at low cost. Furthermore, the water pressure of the water stream causes the water to oscillate continuously, resulting in a high cleaning effect and improved comfort.
流体発振素子を利用したノズルの構造としては、フィー
ドバック水路を有するものや、渦室を利用したものがあ
る。As a structure of a nozzle using a fluid oscillation element, there are a structure having a feedback channel and a structure using a vortex chamber.
［発明が解決しようとする課題］ ところが、このような構成のものにおいては、第４図に
示すように、洗浄水は供給口13を経てノズル本体１の下
部に形成された導入水路6aを通って主ノズル５より大気
と連通した減圧室へ上昇する。主ノズル５より噴出した
噴射水は、大気に通じて減圧された中央水路７を通過す
るときに、コアンダ効果によって左右の壁面のいずれか
に付着する。中央水路７の両側にはフィードバック水路
10が形成されているため主ノズル５を出た噴射水は中央
水路７の左右の壁面に交互に付着しながら通過する。し
かしながら中央水路７の幅や吐水口９の幅が適切でない
場合には、主ノズル５を出た噴射水は、中央水路７の壁
面に付着せずに直進してしまったり、左右に配置された
フィードバック水路10に明確な圧力差がつかず、噴射水
は発振しない。[Problems to be Solved by the Invention] However, in such a structure, as shown in FIG. 4, the cleaning water passes through the supply port 13 and passes through the introduction water passage 6a formed in the lower portion of the nozzle body 1. From the main nozzle 5 to the decompression chamber communicating with the atmosphere. The jetted water jetted from the main nozzle 5 adheres to one of the left and right wall surfaces due to the Coanda effect when passing through the central water channel 7 which is decompressed to the atmosphere. Feedback channels on both sides of the central channel 7.
Since 10 is formed, the water jetted out from the main nozzle 5 passes while being alternately attached to the left and right wall surfaces of the central water passage 7. However, if the width of the central water channel 7 or the width of the water discharge port 9 is not appropriate, the jet water that has flown out of the main nozzle 5 does not adhere to the wall surface of the central water channel 7 and goes straight, or is arranged on the left and right. Since there is no clear pressure difference in the feedback water channel 10, the water jet does not oscillate.
一方、中央水路７に大気と連通した空気孔11を設けるこ
とにより、主ノズル５からの噴射水はエゼクタ効果によ
ってエアを混入するが、中央水路７や吐水口９の幅、及
び空気孔11の位置が不的確な場合、減圧室である中央水
路７の内圧バランスがくずれて、空気孔11から水が噴射
したり、吐水口９からの噴射水の発振不良が生じるなど
の問題があった。On the other hand, by providing the air hole 11 communicating with the atmosphere in the central water channel 7, the water jetted from the main nozzle 5 mixes air by the ejector effect, but the width of the central water channel 7 and the water discharge port 9 and the air hole 11 If the position is inaccurate, there is a problem that the internal pressure balance of the central water passage 7, which is a decompression chamber, is disrupted, and water is jetted from the air hole 11 or oscillation of water jetted from the water outlet 9 is defective.
本発明はこのような問題に鑑みてなされたものであり、
その目的とするところは、簡単な改良により流体発振素
子ノズルの左右壁面へのスイッチ動作の応答性がよくな
り、発振性能を大幅に高めることができる流体発振素子
ノズルを提供することにある。The present invention has been made in view of such problems,
An object of the invention is to provide a fluid oscillating element nozzle that can improve the responsiveness of the switch operation to the left and right wall surfaces of the fluid oscillating element nozzle by a simple improvement and can greatly improve the oscillation performance.
［課題を解決するための手段］ 本発明の流体発振素子ノズルは、供給口13から供給され
た流体を噴射口14から左右に発振させて噴射する流体発
振素子ノズルであって、流体を噴射する主ノズル５と、
主ノズル５の下流に主ノズル５よりも幅の広い中央水路
７、中央水路７の下流に主ノズル５からの噴射水の一部
を主ノズル５へ回流させる水流分離帯８を有する吐水口
９、中央水路７の両側に水流分離帯８により分流された
流体を主ノズル５の出口へ回流させる一対のフィードバ
ック水路10を有し、フィードバック水路10からの回流水
と主ノズル５の噴射水との合流部に大気に通じる空気孔
11を配設して成ることを特徴とするものである。[Means for Solving the Problem] A fluid oscillating element nozzle of the present invention is a fluid oscillating element nozzle that oscillates a fluid supplied from a supply port 13 left and right from an ejection port 14 and ejects the fluid. The main nozzle 5,
A central water channel 7 having a width wider than that of the main nozzle 5 downstream of the main nozzle 5, and a water outlet 9 having a water flow separation zone 8 downstream of the central water channel 7 for diverting a part of water jetted from the main nozzle 5 to the main nozzle 5. , A pair of feedback water channels 10 that circulates the fluid divided by the water flow separation zone 8 to the outlet of the main nozzle 5 on both sides of the central water channel 7, and divides the circulating water from the feedback water channel 10 and the jet water of the main nozzle 5 into Air holes leading to the atmosphere at the confluence
It is characterized in that 11 is provided.
また、中央水路７の幅を主ノズル５の幅の略２倍程度と
し、水流分離帯８の開口幅を中央水路７の幅と略同等に
設定して成ることを特徴とするものである。In addition, the width of the central water channel 7 is set to be approximately twice the width of the main nozzle 5, and the opening width of the water flow separation zone 8 is set to be substantially equal to the width of the central water channel 7.
［作用］ このように、フィードバック水路10からの回流水と主ノ
ズル５の噴射水との合流部に大気に通じる空気孔11を配
設することによって、エゼクタ効果による空気の吸引作
用が最も大きくとれ、しかもフィードバック水路10から
の旋回水流の噴流によって、空気11からエアを吸引した
主ノズル５からの噴射水流を偏流させて中央水路７の壁
面に交互に付着することを助成し、流体発振素子ノズル
の左右壁面へのスイッチ動作の応答性がよくなり、低水
量の噴射水量においても、発振性能が大幅に向上するよ
うにしたものである。[Operation] By arranging the air hole 11 communicating with the atmosphere at the confluence of the circulating water from the feedback water channel 10 and the jet water of the main nozzle 5 in this manner, the suction effect of air by the ejector effect is maximized. In addition, the jet of the swirling water flow from the feedback water channel 10 helps to cause the jet water flow from the main nozzle 5 that has sucked air from the air 11 to be biased and to be alternately adhered to the wall surface of the central water channel 7, and the fluid oscillation element nozzle The responsiveness of the switch operation to the left and right wall surfaces is improved, and the oscillation performance is significantly improved even with a low water injection amount.
また、中央水路７の幅を主ノズル５の幅の略２倍程度と
し、水流分離帯８の開口幅を中央水路７の幅と略同等に
設定することによって、噴射水の一部をフィードバック
水路10へ回流させる分離効果をよくし、中央水路７での
内圧バランスを適性にすることができ、主ノズル５の出
口でのフィードバック水路10からの吸引作用との相乗作
用が生じる。その結果、壁面付着のスイッチング動作の
感度が向上して、吐水口９からの噴射水の発振性状が均
一で安定したものとなる。Further, by setting the width of the central water channel 7 to be about twice the width of the main nozzle 5 and setting the opening width of the water flow separation zone 8 to be substantially equal to the width of the central water channel 7, a part of the jet water is fed back to the feedback channel. It is possible to improve the separation effect of circulating the water to 10, and to make the internal pressure balance in the central water channel 7 appropriate, and to synergize with the suction action from the feedback water channel 10 at the outlet of the main nozzle 5. As a result, the sensitivity of the switching operation for adhering to the wall surface is improved, and the oscillating property of the water jetted from the water outlet 9 becomes uniform and stable.
［実施例］ 以下本発明の実施例を図面に基づいて詳述する。Embodiments Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図に示すように、流体発振素子ノズルＡは、ノズル
本体１、パッキン２、ノズル蓋３の積層構造になってお
り、ノズル本体１には給水管４を設けてある。ノズル本
体１とノズル蓋３は接着または超音波溶着などにより容
易に、しかも安価に接合できる。As shown in FIG. 1, the fluid oscillation element nozzle A has a laminated structure of a nozzle body 1, a packing 2, and a nozzle lid 3, and a water supply pipe 4 is provided in the nozzle body 1. The nozzle body 1 and the nozzle lid 3 can be joined easily or at low cost by adhesion or ultrasonic welding.
第２図はノズル本体１に形成された発振のための水路パ
ターンを示している。給水管４は流体発振素子ノズルＡ
の主ノズル５に対してＴ字型構造をした導入水路６で連
通され、主ノズル５の下流には主ノズル５よりも幅の広
い中央水路７があり、さらに中央水路７の下流には水流
分離帯８を有する末広がり状の吐水口９が形成されてい
る。また中央水路７の両側には、水流分離帯８により分
流された噴射水の一部を主ノズル５の出口へ旋回流させ
るフィードバック水路10が左右に一対形成されている。
空気孔11は、中央水路７の中央で、かつフィードバック
水路10の旋回流の帰点、すなわち主ノズル５の出口との
合流点の領域20に設けている。FIG. 2 shows a water channel pattern formed in the nozzle body 1 for oscillation. The water supply pipe 4 is a fluid oscillation element nozzle A.
The main nozzle 5 is communicated with the introduction water channel 6 having a T-shaped structure, a central water channel 7 wider than the main nozzle 5 is provided downstream of the main nozzle 5, and the water flow is further downstream of the central water channel 7. A divergent water discharge port 9 having a separation zone 8 is formed. On both sides of the central water channel 7, a pair of left and right feedback water channels 10 are formed to swirl a part of the jetted water split by the water flow separation zone 8 to the outlet of the main nozzle 5.
The air hole 11 is provided in the center of the central water channel 7 and in the return point of the swirling flow of the feedback water channel 10, that is, in the region 20 of the confluence with the outlet of the main nozzle 5.
ここで、空気孔11を主ノズル５から最も高速で噴射する
部分に設けることによって、エゼクタ効果によるエア吸
引力が最も大きく、噴射水量に対し約30％程度のエア混
入が可能になる。空気孔11の下流側では、エア混入によ
り見掛けのボリュームが1.3倍程度に増加するため、コ
アンダ効果による壁面付着現象を生じさせるには、中央
水路７の幅は主ノズル５の幅の約２倍程度が望ましい。
また吐水口９の水流分離帯８は、片側の壁面に付着した
噴射水の一部をフィードバック水路10側に積極的に導入
して閉塞させ、反対側のフィードバック水路10と差圧を
生じさせる役目を果たすためのもので、分離効果を上げ
るためには中央水路７の幅と略同等にすることが望まし
い。これらの一定の範囲を越えると内圧のバランスがく
ずれ、棒状またはロウソク状の噴射になり、噴射水は安
定した発振状態にならないし、エア混入量も低下する。Here, by providing the air hole 11 at the portion where the main nozzle 5 ejects at the highest speed, the air suction force due to the ejector effect is the largest, and about 30% of the amount of water injected can be mixed with air. On the downstream side of the air hole 11, the apparent volume increases by about 1.3 times due to air mixing. Therefore, in order to cause the wall adhesion phenomenon due to the Coanda effect, the width of the central water channel 7 is about twice the width of the main nozzle 5. The degree is desirable.
In addition, the water flow separation zone 8 of the water discharge port 9 has a function of positively introducing a part of the jet water adhering to the wall surface on one side to the feedback water channel 10 side to block it and to generate a differential pressure with the feedback water channel 10 on the other side. It is desirable that the width of the central water channel 7 be substantially equal to the width of the central water channel 7 in order to improve the separation effect. If the amount exceeds the certain range, the balance of the internal pressure is lost, resulting in a rod-shaped or candle-shaped jet, the jetted water does not oscillate in a stable state, and the amount of air mixed is also reduced.
動作状態を第２図で詳述する。まず主ノズル５からの噴
射水は、空気孔11でエアを吸引し、コアンダ効果により
中央水路７の左側に付着したとすると、左側の水流分離
帯8aで左側のフィードバック水路10aに噴射水の一部が
導入される。そこで水流分離帯８での押し込み作用と、
主ノズル５の出口でのサクション効果により左側のフィ
ードバック水路10aは水で閉塞され、右側のフィードバ
ック水路10bに差圧を生じ、P1＞P2のように左側のフィ
ードバック水路10aの圧力が高くなる。主ノズル５から
出た噴射水は低圧側すなわち中央水路７の右壁面に付着
方向を変更させてP1＜P2となり、以後噴射水は付着方向
を自動的に切り替えるため、吐水口９ららの噴射水は自
動的に発振状態を繰り返す。The operating state will be described in detail with reference to FIG. First, suppose that the water jetted from the main nozzle 5 sucks air through the air holes 11 and adheres to the left side of the central water channel 7 due to the Coanda effect. Department is introduced. Therefore, with the pushing action in the water flow separation zone 8,
Due to the suction effect at the outlet of the main nozzle 5, the left feedback water channel 10a is blocked by water, a differential pressure is generated in the right feedback water channel 10b, and the pressure of the left feedback water channel 10a increases as P 1 > P 2. . The jet water discharged from the main nozzle 5 changes the adhering direction to the right wall surface of the central water channel 7 on the low pressure side, that is, P 1 <P 2 , and thereafter the jet water automatically switches the adhering direction. The water jet automatically repeats the oscillation state.
ここで、主ノズル５からの噴射水は空気孔11までは直進
し、エア混入後に中央水路７の左右のいずれかの壁面に
付着するが、空気孔11をフィードバック水路10の出口側
12との合流部に設けることにより、高圧側のフィードバ
ック水路10からの旋回水流が、対岸の低圧側方向に噴出
して中央水路７の開口面積を減少させるため、減圧室で
ある合流部の左右の微少な圧力差を感度よく検知し、中
央水路７の左右壁面へのスイッチ動作がスムーズに起こ
るという効果がある。Here, the water jetted from the main nozzle 5 goes straight to the air hole 11 and adheres to either the left or right wall surface of the central water passage 7 after the air is mixed.
The swirling water flow from the high-pressure side feedback water channel 10 is ejected toward the low-pressure side of the opposite bank to reduce the opening area of the central water channel 7 by providing it at the confluence part with the left and right sides of the converging part which is the decompression chamber There is an effect that the small pressure difference of 1 is detected with high sensitivity, and the switch operation to the left and right wall surfaces of the central water channel 7 occurs smoothly.
第３図に主ノズル５の幅と中央水路７の幅との発振領域
を示すが、中央水路７の幅及び水流分離帯８の幅は略同
一幅（0.8〜1.2倍程度）が望ましく、共に主ノズル５の
幅の1.7〜2.3倍程度が安定発振の領域Ｔである。FIG. 3 shows the oscillation region of the width of the main nozzle 5 and the width of the central water channel 7. It is desirable that the width of the central water channel 7 and the width of the water flow separation zone 8 are approximately the same width (about 0.8 to 1.2 times). A stable oscillation region T is about 1.7 to 2.3 times the width of the main nozzle 5.
このように、中央水路７及び吐水口９の狭少部の開口部
を略同等とし、しかも主ノズル５の幅に対し適性な寸法
にすることにより、流体発振素子ノズルＡに内圧バラン
スを図り、エアの混入率を最も大きくすることができる
ので、吐水口９からの発振性状が均一で安定するもので
ある。In this way, by making the openings of the central water passage 7 and the narrow portion of the water discharge port 9 substantially equal and having a size suitable for the width of the main nozzle 5, it is possible to balance the internal pressure of the fluid oscillation element nozzle A, Since the mixing ratio of air can be maximized, the oscillating property from the water discharge port 9 is uniform and stable.
以上により、気液混合状態になった刺激効果及び洗浄効
果の高い自動発振ノズルがコンパクト、かつ安価な構造
で実現するので、温水洗浄便座や入浴シャワー装置など
に適するものである。As described above, since the automatic oscillation nozzle having a gas-liquid mixed state and having a high stimulating effect and a high cleaning effect can be realized with a compact and inexpensive structure, it is suitable for a hot water washing toilet seat, a bath shower device, and the like.
［発明の効果］ 以上要するに本発明は、フィードバック水路からの回流
水と主ノズルの噴射水との合流部に大気に通じる空気孔
を配設するから、エゼクタ効果による空気の吸引作用が
最も大きくすることができ、しかも微妙な圧力差を感度
よく検知するから、流体発振素子ノズルの左右壁面への
スイッチ動作の応答性がよくなり、低水量の噴射水量に
おいても、発振性能を大幅に向上させることができると
いう利点がある。[Advantages of the Invention] In summary, according to the present invention, since the air holes communicating with the atmosphere are provided at the confluence of the circulating water from the feedback channel and the jet water of the main nozzle, the air suction action by the ejector effect is maximized. Since it is possible to detect the delicate pressure difference with high sensitivity, the responsiveness of the switch operation to the left and right wall surfaces of the fluid oscillation element nozzle is improved, and the oscillation performance can be significantly improved even with a low water injection amount. The advantage is that
また、中央水路の幅を主ノズルの幅の略２倍程度とし、
水流分離帯の開口幅を中央水路の幅と略同等に設定して
あるから、噴射水の一部をフィードバック水路へ回流さ
せる分離効果をよくし、中央水路での内圧バランスを適
性にすることができ、主ノズルの出口でのフィードバッ
ク水路からの吸引作用との相乗作用が生じ、その結果、
壁面付着のスイッチング動作の感度が向上して、吐水口
からの噴射水の発振性状が均一で安定したものにできる
という利点がある。In addition, the width of the central water channel is about twice the width of the main nozzle,
Since the opening width of the water flow separation zone is set to be approximately the same as the width of the central waterway, it is possible to improve the separation effect of diverting a part of the jet water to the feedback waterway and to optimize the internal pressure balance in the central waterway. Yes, there is a synergistic effect with the suction action from the feedback channel at the outlet of the main nozzle, resulting in
There is an advantage that the sensitivity of the switching operation for adhering to the wall surface is improved, and the oscillating property of the jet water from the water outlet can be made uniform and stable.
第１図（ａ）（ｂ）は本発明の一実施例の側面図、断面
図、第２図は同上の水路を示す正面図、第３図は同上の
発振領域を示したグラフ、第４図は従来例の水路を示す
正面図であり、５は主ノズル、７は中央水路、８は水流
分離帯、９は吐水口、10はフィードバック水路、11は空
気孔、13は供給口、14は噴射口である。1 (a) and 1 (b) are side views and cross-sectional views of one embodiment of the present invention, FIG. 2 is a front view showing a water channel of the same, FIG. 3 is a graph showing an oscillation region of the same, and FIG. The drawing is a front view showing a water channel of a conventional example, 5 is a main nozzle, 7 is a central water channel, 8 is a water flow separation zone, 9 is a water outlet, 10 is a feedback channel, 11 is an air hole, 13 is a supply port, 14 Is an injection port.
Claims (2)
右に発振させて噴射する流体発振素子ノズルであって、
流体を噴射する主ノズル、主ノズルの下流に主ノズルよ
りも幅の広い中央水路、中央水路の下流に主ノズルから
の噴射水の一部を主ノズルへ回流させる水流分離帯を有
する吐水口、中央水路の両側に水流分離帯により分流さ
れた流体を主ノズルの出口へ回流させる一対のフィード
バック水路を有し、フィードバック水路からの回流水と
主ノズルの噴射水との合流部に大気に通じる空気孔を配
設して成ることを特徴とする流体発振素子ノズル。1. A fluid oscillating element nozzle for oscillating a fluid supplied from a supply port from the injection port to the left and right to eject the fluid.
A main nozzle that injects a fluid, a central water channel that is wider than the main nozzle downstream of the main nozzle, and a water discharge port that has a water flow separation zone that circulates part of the water jetted from the main nozzle to the main nozzle downstream of the central water channel, There is a pair of feedback water channels on both sides of the central water channel that diverts the fluid diverted by the water flow separation zone to the outlet of the main nozzle, and the air that leads to the atmosphere at the confluence of the circulating water from the feedback channel and the jet water of the main nozzle A fluid oscillating device nozzle, characterized in that it is provided with holes.
とし、水流分離帯の開口幅を中央水路の幅と略同等に設
定して成ることを特徴とする請求項１記載の流体発振素
子ノズル。2. The width of the central water channel is about twice the width of the main nozzle, and the opening width of the water flow separation zone is set to be substantially equal to the width of the central water channel. Fluid oscillation element nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12507890A JPH0720563B2 (en) | 1990-05-15 | 1990-05-15 | Fluid oscillation element nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12507890A JPH0720563B2 (en) | 1990-05-15 | 1990-05-15 | Fluid oscillation element nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0418950A JPH0418950A (en) | 1992-01-23 |
| JPH0720563B2 true JPH0720563B2 (en) | 1995-03-08 |
Family
ID=14901289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12507890A Expired - Fee Related JPH0720563B2 (en) | 1990-05-15 | 1990-05-15 | Fluid oscillation element nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0720563B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4581344B2 (en) * | 2003-06-25 | 2010-11-17 | パナソニック株式会社 | Local cleaning equipment |
| JP4730771B2 (en) * | 2005-08-23 | 2011-07-20 | 東京応化工業株式会社 | Processing liquid supply nozzle and substrate processing apparatus |
-
1990
- 1990-05-15 JP JP12507890A patent/JPH0720563B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0418950A (en) | 1992-01-23 |
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