JPH03165855A - Water discharging mechanism and foamed water discharging port utilized therewith - Google Patents
Water discharging mechanism and foamed water discharging port utilized therewithInfo
- Publication number
- JPH03165855A JPH03165855A JP30449289A JP30449289A JPH03165855A JP H03165855 A JPH03165855 A JP H03165855A JP 30449289 A JP30449289 A JP 30449289A JP 30449289 A JP30449289 A JP 30449289A JP H03165855 A JPH03165855 A JP H03165855A
- Authority
- JP
- Japan
- Prior art keywords
- water
- flow
- holes
- chamber
- discharge port
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 136
- 238000007599 discharging Methods 0.000 title claims abstract description 19
- 238000005192 partition Methods 0.000 claims abstract description 31
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 16
- 239000006260 foam Substances 0.000 claims abstract description 15
- 238000005187 foaming Methods 0.000 claims description 22
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000002265 prevention Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Domestic Plumbing Installations (AREA)
- Nozzles (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、水栓のスパウトやシャワーヘッド等の先端に
取り付けられて給水を水膜状に吐出するようにした吐水
機構及びこれを使って泡沫水が得られるようにした泡沫
吐水口に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a water discharging mechanism that is attached to the tip of a faucet spout or a shower head, etc., and discharges supplied water in the form of a water film, and a water discharging mechanism that is attached to the tip of a faucet spout or a shower head, etc., and that uses the same. This invention relates to a foam spout that allows foam water to be obtained.
給水音やシンク等への落下音を小さくしたり水撥ねをな
くすために泡沫吐水口を設けた水栓が従来から利用され
ている。最も一般的に用いられているものとして、たと
えば特公昭６３−３１６２１号公報に記載されたものが
ある。BACKGROUND ART Faucets equipped with a foam spout have been used in the past in order to reduce the sound of water being supplied, the sound of water falling into a sink, etc., and to eliminate water splashing. The most commonly used one is, for example, the one described in Japanese Patent Publication No. 31621/1983.
第８図はこの公報に記載のもの及びその他の一般的な泡
沫吐水口の概略を示す断面図である。図において、水栓
のスパウト５０の先端に固定された吐水ヘッド５１の中
に多数の小孔５２ａを開けた減圧板５２が収納されてい
る。そして、この減圧板５２よりも下流の吐水ヘッド５
ｌの周壁に外の空気を給水中に取り入れる空気孔５３を
開け、更に出口には流れを整流化するための複数の整流
網５４が配置されている。FIG. 8 is a sectional view schematically showing the one described in this publication and other general foam spouts. In the figure, a pressure reducing plate 52 having a large number of small holes 52a is housed in a water discharging head 51 fixed to the tip of a spout 50 of a faucet. The water discharging head 5 downstream of this pressure reducing plate 52
An air hole 53 for introducing outside air into the water supply is formed in the peripheral wall of the tank 1, and a plurality of straightening nets 54 are arranged at the outlet for straightening the flow.
このような泡沫吐水口では、スバウト５０からの給水が
減圧板５２の小孔５２ａを通過するときに流れが増速さ
れる。このため、減圧板５２の下流側の吐水ヘノド５ｌ
の中が減圧されて空気口５３から外部の空気が吸い込ま
れ、この空気が給水の中に混入することによって流れが
泡沫化される。また、整流網５４の網目が細かいため、
給水がこれに衝き当たって流れ去るときにも給水が激し
く撹拌されるため、更に泡沫化が促進される。In such a foam spout, when the water supplied from the spout 50 passes through the small holes 52a of the pressure reducing plate 52, the flow speed is increased. For this reason, the water outlet 5l on the downstream side of the pressure reducing plate 52
The inside of the tank is depressurized and outside air is sucked in through the air port 53, and this air mixes into the water supply, thereby turning the flow into foam. In addition, since the rectifier network 54 has a fine mesh,
When the supplied water hits this and flows away, the supplied water is also vigorously agitated, which further promotes foaming.
ところが、スパウト５０からの給水は減圧板５２の小孔
５２ａ（内径ほぼ１帥程度〉を通過するため、流れの圧
力損失がかなり大きくなる。このため、水栓の弁開度を
或る一定以上に設定しないと適切な吐水圧が得られない
。また、流量を小さくした場合には、泡沫にならなかっ
たり泡沫感のない吐水となり、使い勝手が悪くなる。更
に、減圧板５２及び整流網５４を２段に備えているので
、給水中の異物が詰まったりスケールが付着しやすい。However, since the water supplied from the spout 50 passes through the small hole 52a (with an inner diameter of about 1 mm) in the pressure reducing plate 52, the pressure loss of the flow becomes quite large. If the flow rate is not set at Since it is equipped with two stages, it is easy for foreign objects in the water supply to become clogged or for scale to adhere.
このため、流路面積が小さくなって吐水量不足を生じた
り、特に減圧板５２の小孔５２ａが閉じてしまうと適切
な泡沫化もできなくなる。For this reason, the flow path area becomes small, resulting in an insufficient amount of water to be discharged, and in particular, if the small holes 52a of the pressure reducing plate 52 are closed, appropriate foaming cannot be achieved.
このように、従来の泡沫吐水口では、減圧板を利用した
給水の増速及びこれに基づく内部流路の減圧による外気
の吸引を利用しているので、給水の圧力損失が大きくて
流路の閉塞等の障害があるほか、低流量では適切に使え
ない等の問題があった。In this way, the conventional foam spout uses a pressure reducing plate to increase the speed of the water supply and to reduce the pressure in the internal flow path to suck in outside air, so the pressure loss of the water supply is large and the flow path In addition to problems such as blockage, there were other problems such as the inability to use the system properly at low flow rates.
そこで、本発明は、従来の泡沫化に代えて、圧力損失が
小さくて済みスケール付着等もなく、且つ常に適切な泡
沫水が得られるようにすることを目的とする。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to replace the conventional foaming method with a method that reduces pressure loss, does not cause scale adhesion, and can always provide suitable foamy water.
本発明の吐水機構は、吐水ヘソドの内部に、ほぼ環状の
上流側室及び該上流側室との間に隔壁を形・威して区画
した下流劇室を形成し、前記下流側室の底部のほぼ中央
に放出口を開け、更に前記隔壁に、前記下流側室の内部
で給水を旋回させる流路軸線を持つ複数の孔を開け、こ
れらの孔の高さ位置を互いに異ならせて配列したことを
特徴とする。The water spouting mechanism of the present invention forms a substantially annular upstream chamber and a downstream chamber partitioned by a partition wall between the upstream chamber and the upstream chamber, approximately at the center of the bottom of the downstream chamber. A discharge port is opened in the partition wall, and a plurality of holes having flow path axes for swirling the water supply inside the downstream chamber are formed in the partition wall, and these holes are arranged at different height positions. do.
また、この吐水機構を利用した泡沫吐水口は、吐水ヘッ
ドに、前記放出口に一端を連通連結し且つ他端を吐水端
とした泡沫化チャンバを一体化し、該泡沫化チャンバは
前記放出口へ向けて空気吸弓用の空気流路を備えている
ことを特徴とする。Further, a foaming spout using this water spouting mechanism has a foaming chamber integrated into the water spouting head, one end of which is connected in communication with the discharge port, and the other end of which is a water spouting end, and the foaming chamber is connected to the discharge port. It is characterized by being equipped with an air flow path for air suction bow.
吐水ヘッドに供給された水は上流側室に流入した後、隔
壁に開けた孔から下流側室に流れ込む。The water supplied to the water discharge head flows into the upstream chamber, and then flows into the downstream chamber through a hole in the partition wall.
このとき、孔の姿勢を適切にすることによって、下流側
室内での流れは渦巻き状の旋回流となり、流れ自体には
外側への遠心力が作用する。そして、下流側室のほぼ中
央に開けた放出口部分での流れが渦巻き状となるため、
放出口から流れ出る水は遠心力により外側へ吹き飛ばさ
れ、放出口から円錐の水膜状となって吐水される。この
とき、隔壁に開けた複数の孔はその高さ位置が互いに異
なっているので、各孔から下流側室に送り込まれた水ど
うしの干渉が抑えられ、旋回力を上げる結果となる。At this time, by optimizing the posture of the hole, the flow within the downstream chamber becomes a spiral swirling flow, and centrifugal force acts on the flow itself outward. The flow at the outlet opening in the center of the downstream chamber becomes spiral,
The water flowing out from the outlet is blown outward by centrifugal force, and is discharged from the outlet in the form of a conical water film. At this time, since the plurality of holes drilled in the partition wall have different height positions, interference between the water sent into the downstream chamber from each hole is suppressed, resulting in an increase in swirling force.
また、泡沫化チャンバを一体に備えたとき、放出口から
の水は円錐状の水膜状となって泡沫化チャンバに送り込
まれる。そして、泡沫化チャンバには放出口へ向けて空
気流路を設けているので、放出口から高速で流入する水
による減圧効果によって、空気流路から空気が吸引され
る。そして、この吸引された空気は流れ込んでいろ水膜
状の給水中に速やかに混入され、泡沫吐水となって排出
される。Further, when a foaming chamber is integrally provided, water from the discharge port becomes a conical water film and is sent into the foaming chamber. Since the foaming chamber is provided with an air flow path toward the outlet, air is sucked from the air flow path due to the depressurizing effect of water flowing in from the outlet at high speed. Then, this sucked air flows in and is quickly mixed into the water film-like water supply, and is discharged as foamy water.
このように、多数の小孔を開けた減圧板を用いることな
く、給水を旋回させて飛敗しやすい状態とした後に空気
を混入させることで泡沫吐水が得られ、圧力損失を低減
した泡沫化が可能となる。In this way, without using a pressure reducing plate with many small holes, by swirling the supplied water to make it more likely to blow up and then mixing in air, foamy water can be obtained, resulting in foamy water with reduced pressure loss. becomes possible.
第１図は本発明の一実施例を示す泡沫吐水口の要部縦断
面図、第２図は第１図のＩ−１線矢視断面図である。FIG. 1 is a vertical cross-sectional view of a main part of a foam spout showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line I-1 in FIG. 1.
図において、スパウト５０の先端に泡沫化のための吐水
ヘッド１が取り付けられている。吐水ヘッド１は円形の
横断面を持ち、スパウト５０からほぼ水平方向に向かう
流線は吐水ヘソドｌの中心から下に直角に曲がり、下端
に設けた散水板２から吐出される内部流路が形成されて
いる。In the figure, a water discharging head 1 for foaming is attached to the tip of a spout 50. The water discharging head 1 has a circular cross section, and a streamline extending from the spout 50 in a substantially horizontal direction curves downward at a right angle from the center of the water discharging head l, forming an internal flow path through which water is discharged from the water sprinkling plate 2 provided at the lower end. has been done.
吐水ヘッドｌの内部は仕切壁３によって上下に分割され
、この仕切壁３の上方を旋回流チャンバ４及び下方を泡
沫化チャンバ５としている。旋回流チャンバ４は、仕切
壁３と吐水ヘッドｌの上端内壁との間を繋ぐ環状の隔壁
６によって上流側室７及び下流側室８に区画されている
。上流側室７は環状の流路を持ち、下流側室８は仕切壁
３に開けた放出口３ａによって泡沫化チャンバ５に連通
している。なお、仕切壁３及び環状の隔壁６は一体成形
品としておき、これを吐水ヘッド１の中に固定する組立
て構造とする。The inside of the water discharging head 1 is divided into upper and lower parts by a partition wall 3, with a swirling flow chamber 4 above the partition wall 3 and a foaming chamber 5 below the partition wall 3. The swirling flow chamber 4 is divided into an upstream chamber 7 and a downstream chamber 8 by an annular partition wall 6 that connects the partition wall 3 and the upper inner wall of the water discharging head l. The upstream chamber 7 has an annular flow path, and the downstream chamber 8 communicates with the foaming chamber 5 through a discharge port 3a formed in the partition wall 3. Note that the partition wall 3 and the annular partition wall 6 are integrally molded, and the assembly structure is such that the partition wall 3 and the annular partition wall 6 are fixed in the water discharging head 1.
隔壁６は吐水ヘッド１の流路断面と同軸配置され、第２
図に示すように３箇所に孔５ａ， ５ｂ， ５ｃを開け
ている。これらの孔６ａ〜６Ｃの詳細を第３図及び第４
図に示す。The partition wall 6 is arranged coaxially with the flow path cross section of the water discharging head 1, and
As shown in the figure, holes 5a, 5b, and 5c are made at three locations. Details of these holes 6a to 6C are shown in Figures 3 and 4.
As shown in the figure.
第３図（ロ）のように隔壁６に開けた孔６ａ〜６Ｃは内
部の下流側室８の横断面に対して流路軸線がタンジェン
シャル方向となるような姿勢としている。As shown in FIG. 3(b), the holes 6a to 6C formed in the partition wall 6 are oriented such that the flow path axis is in the tangential direction with respect to the cross section of the downstream chamber 8 inside.
一方、下流側室８の底部に開放している放出口３ａは下
流側室８の中心に位置し、その内径は下流側室８の内径
よりも格段に小さい。たとえば、下流側室８の内径を１
８帥としたとき放出口３ａの内径は８帥程度であり、ま
た孔６ａ〜６Ｃの内径は５ＩｎＱ＋程度であって隔壁６
の肉厚はほぼ３ ｍｍ程度である。そして、第３図（ｂ
）のようにそれぞれの孔６ａ〜６Ｃの流路軸線は下流側
室８の内周壁に対する接線と平行であり、隔壁６の肉厚
が３帥程度であっても内周壁に連なる流路長さが十分に
大きく、供給される水に方向性を与えながら下流側室８
に送り込むことができる。On the other hand, the discharge port 3a open to the bottom of the downstream chamber 8 is located at the center of the downstream chamber 8, and its inner diameter is much smaller than the inner diameter of the downstream chamber 8. For example, if the inner diameter of the downstream chamber 8 is 1
The inner diameter of the discharge port 3a is about 8 mm, and the inner diameter of the holes 6a to 6C is about 5 InQ+, and the inner diameter of the partition wall 6 is about 8 mm.
The wall thickness is approximately 3 mm. And Figure 3 (b
), the flow path axes of each of the holes 6a to 6C are parallel to the tangent to the inner circumferential wall of the downstream chamber 8, and even if the partition wall 6 has a wall thickness of about 3 mm, the length of the flow path connected to the inner circumferential wall is The downstream chamber 8 is sufficiently large and provides directionality to the supplied water.
can be sent to.
また、これらの孔６ａ〜６Ｃは、第４図に示すように下
流側室８の底部からの高さが互いに異なっている。すな
わち、流入側に最も近い孔６ａの高さが最も低く、第２
図において時計方向に配列された孔６ｂ及び孔６ｃがそ
れぞれ順に高いレベルに開けられている。なお、流入側
の孔６ａから孔６Ｃまでの高さをこの順に低くするのが
必須ではなく、とにかく孔６ａ〜６Ｃのレベルを互いに
異ならせておけばよい。このように孔６ａ〜６Ｃの高さ
を異ならせると、各孔６ａ〜６Ｃから下流側室８に流れ
込む水は、互いの流れに干渉し合う度合が小さくなり、
孔６ａ〜６Ｃからの水は下流側室８の内周壁に沿った旋
回流れを持続させることができる。つまり、孔６ａ〜６
Ｃを同じ高さとした場合では、各孔６ａ〜６Ｃからの流
れは他の孔からの水の流入によって流れが乱れ、旋回流
の力を互いに弱めてしまう。これに対し、水の流れ込み
位置を上下に分けておけば、それぞれの孔６ａ〜６Ｃか
らの水が下流側室８の内周壁に沿ってほぼｌ周できるよ
うな流れとなり、上下に３段のこのような流れによって
下流側室８内での旋回流を強くすることができる。Further, these holes 6a to 6C have different heights from the bottom of the downstream chamber 8, as shown in FIG. That is, the height of the hole 6a closest to the inflow side is the lowest, and the height of the hole 6a closest to the inflow side is the lowest.
Holes 6b and holes 6c arranged clockwise in the figure are respectively opened at higher levels in order. Note that it is not essential that the heights from the hole 6a to the hole 6C on the inflow side are made lower in this order, but it is sufficient that the levels of the holes 6a to 6C are made different from each other. By making the heights of the holes 6a to 6C different in this way, the water flowing into the downstream chamber 8 from each of the holes 6a to 6C has a smaller degree of interference with each other's flow.
The water from the holes 6a to 6C can maintain a swirling flow along the inner circumferential wall of the downstream chamber 8. In other words, holes 6a to 6
When C is the same height, the flow from each hole 6a to 6C is disturbed by the inflow of water from other holes, and the forces of the swirling flow are mutually weakened. On the other hand, if the water inflow position is divided into upper and lower parts, the water from each of the holes 6a to 6C will flow approximately l round along the inner circumferential wall of the downstream chamber 8, and the water will flow around the inner peripheral wall of the downstream chamber 8 in three stages. Such a flow makes it possible to strengthen the swirling flow within the downstream chamber 8.
また、第２図に示すように上流側室７に堰７ａを設けて
水が図において時計方向にのみ流れるようにしてもよい
。そして、給水は堰７ａに行くに連れて流動エネルギが
減衰してゆくので、これを補うために孔６ａ〜６Ｃの開
口面積をこの順に小さくしておき、下流側室８に流れ込
む水を増速させるようにする。このような水の流れによ
り、上流側室７を２方向に分かれて供給する場合に比べ
ると、下ｑ
流側室８内では強い旋回力の渦流を発生させることがで
きる。Alternatively, as shown in FIG. 2, a weir 7a may be provided in the upstream chamber 7 so that water flows only in the clockwise direction in the figure. Since the flow energy of the water supply decreases as it goes to the weir 7a, in order to compensate for this, the opening areas of the holes 6a to 6C are made smaller in this order, and the speed of the water flowing into the downstream chamber 8 is increased. Do it like this. Due to such a flow of water, a vortex flow with a strong swirling force can be generated in the lower q downstream chamber 8 compared to the case where the upstream chamber 7 is divided into two directions and supplied.
なお、第ｌ図においては、説明のために孔６ａ〜６Ｃの
位置を実際とは異なったものとして示している。また、
第２図においても孔６ａ〜６Ｃが全て開口として示して
いるが、実際には第４図のようにそれぞれの孔６ａ〜６
Ｃの高さは異なっている。In addition, in FIG. 1, the positions of the holes 6a to 6C are shown as being different from the actual positions for the sake of explanation. Also,
Although the holes 6a to 6C are all shown as openings in FIG. 2, in reality, each of the holes 6a to 6C is
The heights of C are different.
一方、散水板２は泡沫水を整流して吐出させると共に泡
沫化のための空気吸引構造を備えたもので、第５図（ａ
）にその全体斜視図を示す。On the other hand, the water sprinkling plate 2 rectifies and discharges foamy water and is equipped with an air suction structure for foaming.
) shows the overall perspective view.
散水板２の一端には吐水ヘッド１の吐出端にネジ接合等
によって一体化されるベース２０を備え、このベース２
０に合計６個の散水孔２ｌが設けられている（第６図〉
。そして、ベース２０の中心から上に向けて空気吸入筒
２２を同軸上に形戒し、その内部に空気流路２２ａを設
けている。各敗水孔２１の内部には十字状の整流板２３
が組み込まれ、またベース２０の上面には、図示のよう
に空気吸入筒２２から放射状に伸びる６枚の整流羽根２
４が設けられている。更に、ベース２０の土面にはベー
ス２０と同軸で１０
あって散水孔２ｌの中心を通る円形の環状整流板２５が
設けられる。One end of the water sprinkling plate 2 is provided with a base 20 that is integrated with the discharge end of the water spouting head 1 by screwing or the like.
A total of six water sprinkling holes 2L are provided in the 0 (Fig. 6)
. The air suction tube 22 is arranged coaxially upward from the center of the base 20, and an air flow path 22a is provided inside the tube. Inside each drainage hole 21 is a cross-shaped rectifying plate 23.
is incorporated, and six rectifying blades 2 extending radially from the air intake cylinder 22 are installed on the upper surface of the base 20 as shown in the figure.
4 is provided. Furthermore, a circular annular current plate 25 is provided on the soil surface of the base 20, which is coaxial with the base 20 and passes through the center of the water sprinkling hole 2l.
空気吸入筒２２の上半分より高い位置には逆流防止板２
６が設けられる。この逆流防止板２６は円板状であって
水平姿勢に取り付けられ、その外径は環状整流板２５よ
りも小さいか又は同じ程度である。A backflow prevention plate 2 is installed at a position higher than the upper half of the air intake cylinder 22.
6 is provided. This backflow prevention plate 26 has a disk shape and is attached in a horizontal position, and its outer diameter is smaller than or about the same as that of the annular rectifier plate 25.
更に、第１図に示すように仕切壁３の下には泡沫化チャ
ンバ５と同軸配置となるように環状の逆流防止板２７が
設けられる。なお、この逆流防止板２７は第５図（ｂ）
に示すように散水板２に一体化してもよい。この場合で
は、空気吸入筒２２の上端に４本のステ−２７ａを連結
して環状の逆流防止板２７を体化し、水や空気の流れに
障害を与えない構造とする。そして、吐水ヘッド１に組
み込んだときには逆流防止板２７の上端が仕切壁３の下
面に密着させる。更に、泡沫化チャンバ５の内周壁には
雌不ジ５ａが干渉面として形成されている。Furthermore, as shown in FIG. 1, an annular backflow prevention plate 27 is provided under the partition wall 3 so as to be coaxially arranged with the foaming chamber 5. In addition, this backflow prevention plate 27 is shown in FIG. 5(b).
It may be integrated into the water sprinkler plate 2 as shown in FIG. In this case, four stays 27a are connected to the upper end of the air suction cylinder 22 to form an annular backflow prevention plate 27, so that the structure does not impede the flow of water or air. When assembled into the water discharging head 1, the upper end of the backflow prevention plate 27 is brought into close contact with the lower surface of the partition wall 3. Further, a female groove 5a is formed on the inner circumferential wall of the foaming chamber 5 as an interference surface.
ここで、スパウト５０から水を送り込むと、上流側室７
から隔壁６の孔６ａ〜６Ｃを通って下流側室８に水が流
れ込む。このとき、既に説明したように１ｌ
各孔６ａ〜６Ｃの軸線の姿勢によって、流れ込んだ水は
下流側室８内で旋回流となる。このとき、孔６ａ〜６Ｃ
の全体の流路面積が放出口３ａのそれよりも大きければ
、下流側室８内で水が滞留する現象を生じ、内圧も幾分
か上昇する。したがって、下流側室８の内部では水自体
の流動エネルギが増加し、旋回流による遠心力が作用す
る。このため、放出口３ａから下に流れ落ちる水は遠心
力の影響を受けて外に広がる挙動をし、第１図の矢印で
示すように円錐状の水膜Ｆとなって吐出される。そして
、前記のような孔６ａ〜６Ｃの内径及びその位置 下流
側室８の内径及び放出口３ａの内径等の寸法関係の場合
、一般的なンヤワ一〇通常流量であって浴槽への給水給
湯厚程度の条件に設定しておけば、下流側室８内での流
れの旋回力を強くすることができる。また、孔６ａ〜６
Ｃを第４図のように高さが異なるように開けることによ
って、各孔６ａ〜６Ｃからの流れどうしの干渉を抑え、
更に旋回力を上げることができる。Here, when water is sent from the spout 50, the upstream chamber 7
Water flows into the downstream chamber 8 through the holes 6a to 6C of the partition wall 6. At this time, as already explained, the water flowing into the downstream chamber 8 becomes a swirling flow depending on the attitude of the axis of each of the holes 6a to 6C. At this time, holes 6a to 6C
If the entire flow path area is larger than that of the discharge port 3a, water will remain in the downstream chamber 8, and the internal pressure will rise somewhat. Therefore, inside the downstream chamber 8, the flow energy of the water itself increases, and a centrifugal force due to the swirling flow acts. Therefore, the water flowing down from the discharge port 3a spreads outward under the influence of centrifugal force, and is discharged as a conical water film F as shown by the arrow in FIG. In the case of the dimensional relationship such as the inner diameter of the holes 6a to 6C and their positions, the inner diameter of the downstream chamber 8, and the inner diameter of the discharge port 3a, as described above, the normal flow rate and the thickness of water supply to the bathtub are determined. If the conditions are set to a certain degree, the swirling force of the flow within the downstream chamber 8 can be strengthened. In addition, holes 6a to 6
By opening holes C at different heights as shown in Fig. 4, interference between the flows from each hole 6a to 6C is suppressed,
It is possible to further increase the turning force.
一方、放出口３ａは泡沫化チャンバ５のほぼ中央１２
に位置し、遠心力を伴った水が大きな流速で流れ出すた
め、円錐状の水膜Ｆの内側の空間の内圧が低下する。こ
のため、空気流路２２ａから空気が吸い込まれ、放出口
３ａからの水膜Ｆが泡沫化チャンバ５に刻んだ雌ネジ５
ａに衝き当たって砕けた水に空気が混ざり込んで給水が
泡沫化される。そして、泡沫化された水は敗水孔２１に
流れ込み、整流板２３により流れが整えられて吐出され
る。On the other hand, the discharge port 3a is located approximately at the center 12 of the foaming chamber 5, and since water accompanied by centrifugal force flows out at a high flow rate, the internal pressure in the space inside the conical water film F decreases. For this reason, air is sucked in from the air flow path 22a, and a water film F from the discharge port 3a is formed on the female screw 5 in the foaming chamber 5.
Air is mixed with the water that breaks up when it hits the a, and the water is turned into foam. Then, the foamed water flows into the drainage hole 21, the flow is adjusted by the current plate 23, and the water is discharged.
以上のように、給水を旋回させて泡沫化チャンバ５の中
へ円錐状の水膜Ｆとして送り込み、これに空気を混入し
て泡沫化するので、従来のように減圧板を利用する場合
に比べて、圧力損失が格段に小さくなる。このため、流
量が小さい場合でも給水は十分に泡沫化され、環状整流
板２５，整流羽根２４によって泡沫水を安定化させて整
流板２３を通過させるので、流れの乱れを伴うことなく
最適な泡沫吐水が得られる。As described above, the supplied water is swirled and sent into the foaming chamber 5 as a conical water film F, and air is mixed into this to create foam, compared to the conventional case where a pressure reducing plate is used. As a result, pressure loss is significantly reduced. Therefore, even when the flow rate is small, the supplied water is sufficiently foamed, and the annular straightening plate 25 and the straightening blades 24 stabilize the foamy water before passing through the straightening plate 23, so that the water is optimally foamed without turbulence in the flow. Water can be obtained.
なお、空気吸入筒２２の空気流路２２ａの流路断面の内
径を３．５ｍｍ程度とし空気吸入筒２２の上端と仕切壁
３の下面との距離を６ ｍｍ程度とすれば、通常１３
の一般家庭用の給水圧の場合に騒音が小さくしかも空気
吸引量も多いことが確認された。したがって、このよう
な寸法関係を持たせることにより、低騒音でしかも泡沫
化が良好に行える製品として供給できる。Note that if the inner diameter of the cross section of the air passage 22a of the air suction cylinder 22 is approximately 3.5 mm, and the distance between the upper end of the air suction cylinder 22 and the lower surface of the partition wall 3 is approximately 6 mm, the general It was confirmed that in the case of household water supply pressure, the noise was low and the amount of air suction was large. Therefore, by providing such a dimensional relationship, it is possible to supply a product that has low noise and can be foamed well.
第７図は旋回流による水膜吐水を可能とした例を示す概
略断面図であり、これは吐水ヘッドｌに旋回流チャンバ
４のみを設けたものである。FIG. 7 is a schematic sectional view showing an example in which water film discharging by swirling flow is possible, and this is an example in which only the swirling flow chamber 4 is provided in the water discharging head l.
図において、吐水ヘノド１の内部には、第１図と同様に
環状の隔壁６が形成されてその外部をスパウト５０に連
通ずる上流側室７及び内部を下流側室８としている。下
流側室８の底部の中央には吐水口８ａが放出口として開
けられ、第３図で説明した寸法関係及び流路軸線を持っ
て隔壁６に孔６ａ〜６ｃを設けている。そして、これら
の孔６ａ〜６Ｃは第４図のようにそれぞれ高さ位置を異
ならせて配置され、下流側室８へ各孔６ａ〜６Ｃから流
れ込むそれぞれの流れどうしの干渉を抑える。In the figure, an annular partition wall 6 is formed inside the water spouting nozzle 1 as in FIG. 1, and the outside thereof is an upstream chamber 7 communicating with the spout 50, and the inside thereof is an upstream chamber 8. A water spout 8a is opened in the center of the bottom of the downstream chamber 8 as a discharge port, and holes 6a to 6c are provided in the partition wall 6 with the dimensional relationship and flow path axis explained in FIG. The holes 6a to 6C are arranged at different heights as shown in FIG. 4, and interference between the flows flowing into the downstream chamber 8 from the holes 6a to 6C is suppressed.
このように旋回流チャンバ４のみを備えた構或でも、供
給された水は下流側室８内で旋回して渦１４
流れとなり、吐出口８ａからの水は遠心力の作用によっ
て外に広がり図中の破線で示すように円錐状の水膜Ｆと
なって吐出される。そして、孔６ａ〜６Ｃの高さ位置を
異ならせて流れの旋回力を強くしているので、吐出口８
ａからの吐水の遠心力も大きくなり、水膜Ｆのミスト化
が促進される。このため水膜Ｆを利用した泡沫吐水に代
わるソフトタッチの吐水が得られる。Even in a structure including only the swirling flow chamber 4, the supplied water swirls in the downstream chamber 8 to form a vortex 14 flow, and the water from the discharge port 8a spreads outward due to the action of centrifugal force, as shown in the figure. As shown by the broken line, a conical water film F is discharged. Since the height positions of the holes 6a to 6C are made different to increase the swirling force of the flow, the discharge port 8
The centrifugal force of the water discharged from a also increases, and the formation of the water film F into a mist is promoted. Therefore, soft-touch water spouting can be obtained in place of foamy water spouting using the water film F.
以上に説明したように、本発明では、給水を旋回させた
後にこれを円錐状の水膜流れとして排出するようにし、
そのままの水膜吐水又は泡沫化して吐水できるようにし
ている。このため、泡沫吐水とする場合では、従来のよ
うに減圧板を利用するのに比べると圧力損失も小さくス
ケール付着の問題も解消される。また、旋回流とするた
めに開けた環状壁の複数の孔の高さ位置を異ならせてい
るので、それぞれの孔からの水の流れどうしの干渉を抑
えることができ、旋回力が強くなる。このため、流量が
小さい場合でも流れの旋回が促進さ１５
れ、一般に小流量では泡沫化が不十分であった問題も解
消できる。As explained above, in the present invention, after the supplied water is swirled, it is discharged as a conical water film flow,
Water can be discharged either as a film of water or as foam. Therefore, when discharging foam water, the pressure loss is smaller than when a pressure reducing plate is used as in the past, and the problem of scale adhesion is solved. Furthermore, since the plurality of holes in the annular wall that are opened to create a swirling flow are arranged at different heights, interference between the water flows from the respective holes can be suppressed, and the swirling force can be increased. Therefore, swirling of the flow is promoted even when the flow rate is small, and the problem that foaming is generally insufficient at a small flow rate can be solved.
第１図は本発明の泡沫吐水口の要部縦断面図、第２図は
第ｌ図のＩ一Ｉ線矢視断面図、第３図（ａ）は環状壁に
開ける孔の詳細を示す縦断面図、第３図（ｂ）は横断面
図、第４図は環状壁に開けた孔の高さ位置を示す図、第
５図は散水板の斜視図、第６図は第１図の底面図、第７
図は旋回流チャンバによる水膜吐水を示す図、第８図は
従来例の概略図である。
ｌ：吐水ヘッド ２：敗水板
３：仕切゛壁 ３ａ：放出口
４：旋回流チャンパ
５：泡沫化チャンバ ５ａ：雌ネジ
６：隔壁 ６ａ， ６ｂ， ［ｉｃ ：孔７
二上流側室
８：下流側室 ８ａ：吐水口（放出口）２０：ベ
ース ２１：散水孔
２２：空気吸入筒 ２２ａ：空気流路１６
２３：整流板
２４：整流羽根
２５：環状整流板
２６．
２７：逆流防止板Fig. 1 is a vertical cross-sectional view of the main part of the foam spout of the present invention, Fig. 2 is a cross-sectional view taken along the line I-I of Fig. I, and Fig. 3 (a) shows details of the hole made in the annular wall. 3(b) is a longitudinal sectional view, FIG. 4 is a diagram showing the height position of the hole drilled in the annular wall, FIG. 5 is a perspective view of the sprinkler plate, and FIG. bottom view, No. 7
The figure shows water film discharge by a swirling flow chamber, and FIG. 8 is a schematic diagram of a conventional example. l: Water discharge head 2: Water loss plate 3: Partition wall 3a: Discharge port 4: Swirling flow chamber 5: Foaming chamber 5a: Female screw 6: Partition wall 6a, 6b, [ic: hole 7
Second upstream chamber 8: Downstream chamber 8a: Water spout (discharge port) 20: Base 21: Water sprinkling hole 22: Air suction tube 22a: Air flow path 16 23: Straightening plate 24: Straightening blade 25: Annular straightening plate 26. 27: Backflow prevention plate
Claims (1)
流側室との間に隔壁を形成して区画した下流側室を形成
し、前記下流側室の底部のほぼ中央に放出口を開け、更
に前記隔壁に、前記下流側室の内部で給水を旋回させる
流路軸線を持つ複数の孔を開け、これらの孔の高さ位置
を互いに異ならせて配列したことを特徴とする吐水機構
。 ２、請求項１記載の吐水ヘッドに、前記放出口に一端を
連通連結し且つ他端を吐水端とした泡沫化チャンバを一
体化し、該泡沫化チャンバは前記放出口へ向けて空気吸
引用の空気流路を備えていることを特徴とする泡沫吐水
口。[Claims] 1. A substantially annular upstream chamber and a downstream chamber partitioned by forming a partition between the upstream chamber and the upstream chamber are formed inside the water discharging head, and the water is discharged approximately at the center of the bottom of the downstream chamber. A water spout characterized in that an outlet is opened, and a plurality of holes having flow path axes for swirling the supplied water inside the downstream chamber are further formed in the partition wall, and these holes are arranged at different height positions. mechanism. 2. The water spouting head according to claim 1 is integrated with a foaming chamber having one end connected to the discharge port and the other end being a water discharge end, and the foaming chamber has an air suction chamber directed toward the discharge port. A foam spout characterized by having an air flow path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30449289A JPH0679684B2 (en) | 1989-11-21 | 1989-11-21 | Foam spout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30449289A JPH0679684B2 (en) | 1989-11-21 | 1989-11-21 | Foam spout |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03165855A true JPH03165855A (en) | 1991-07-17 |
| JPH0679684B2 JPH0679684B2 (en) | 1994-10-12 |
Family
ID=17933687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30449289A Expired - Fee Related JPH0679684B2 (en) | 1989-11-21 | 1989-11-21 | Foam spout |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0679684B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011144581A (en) * | 2010-01-15 | 2011-07-28 | Toto Ltd | Water discharge device |
| JP2011167675A (en) * | 2010-02-22 | 2011-09-01 | Nanoplanet Corp | Device for generating whirling mist and method of generating whirling mist |
| WO2012033126A1 (en) * | 2010-09-11 | 2012-03-15 | Takano Masaaki | Foamed-water generating plug |
| CN102405321A (en) * | 2009-03-26 | 2012-04-04 | 高野雅彰 | Foamed-water generating plug |
| JP2012250210A (en) * | 2011-06-06 | 2012-12-20 | K & K Service:Kk | Escape member, and nozzle |
-
1989
- 1989-11-21 JP JP30449289A patent/JPH0679684B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102405321A (en) * | 2009-03-26 | 2012-04-04 | 高野雅彰 | Foamed-water generating plug |
| US9297153B2 (en) | 2009-03-26 | 2016-03-29 | Masaaki Takano | Water saving aerator |
| JP2011144581A (en) * | 2010-01-15 | 2011-07-28 | Toto Ltd | Water discharge device |
| JP2011167675A (en) * | 2010-02-22 | 2011-09-01 | Nanoplanet Corp | Device for generating whirling mist and method of generating whirling mist |
| WO2012033126A1 (en) * | 2010-09-11 | 2012-03-15 | Takano Masaaki | Foamed-water generating plug |
| US9504968B2 (en) | 2010-09-11 | 2016-11-29 | Masaaki Takano | Foamed water saving aerator |
| JP2012250210A (en) * | 2011-06-06 | 2012-12-20 | K & K Service:Kk | Escape member, and nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0679684B2 (en) | 1994-10-12 |
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