JP3734676B2 - Fountain equipment using compressed air - Google Patents

Fountain equipment using compressed air Download PDF

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Publication number
JP3734676B2
JP3734676B2 JP2000167951A JP2000167951A JP3734676B2 JP 3734676 B2 JP3734676 B2 JP 3734676B2 JP 2000167951 A JP2000167951 A JP 2000167951A JP 2000167951 A JP2000167951 A JP 2000167951A JP 3734676 B2 JP3734676 B2 JP 3734676B2
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Japan
Prior art keywords
water
fountain
compressed air
tank
inlet
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JP2000167951A
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Japanese (ja)
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JP2001347205A (en
Inventor
清潤 小山内
敏子 須山
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Ebara Corp
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Ebara Corp
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Description

【0001】
【発明の属する技術分野】
本発明は水を噴出させる噴水装置に関し、特に水面に浮上させ、水の供給の為に格別の動力を必要とすることのない噴水装置に関するものである。
【0002】
【従来の技術】
噴水装置は各種の分野、例えば公園、池、農場等の散水用、更には貯水場や養魚場等の水質改善等に利用されている。そして通常このような噴水装置に水を供給する手段としては、電動機で駆動されるポンプが用いられており、電力を多く消費するという問題がある。特に、貯水場や養魚場に設置され、水中の溶存酸素を豊富にするための、所謂水質改善の為に用いる噴水装置は電力消費量が多く、水質改善コストが高いという問題がある。
【0003】
【発明が解決しようとする課題】
本発明は上述の点に鑑みてなされたもので、噴水タンクを水面に浮上させ、該噴水タンク内に水を供給する際に格別の動力を必要とすることなく、且つ安価に製造できる圧縮空気、例えばダム等の放流水で回転する水車で空気圧縮機を駆動して製造される圧縮空気を利用して噴水タンク内の水を噴出できる運転費用が安価な噴水装置を提供することを目的とする。
【0004】
【課題を解決するための手段】
上記課題を解決するため請求項1に記載の発明は、噴水ノズル、圧縮空気導入口、水流入口を有する密閉型の噴水タンクを具備し、噴水ノズルはその先端水噴出口は噴水タンクの外部に突出し、後端水流入口は該噴水タンク内で底部近傍に開口しており、噴水タンクは水面上に設置し内部を空、水流入口を水中に開口及び圧縮空気導入口を大気中に開口した状態で、その自重又は該自重と外部荷重により、水中に沈降しながら該水流入口から内部に水が流入すると共に、内部の空気が圧縮空気導入口を通って大気中に排出されるように構成され、噴水タンクに水が充満した状態で水流入口を閉じ、圧縮空気導入口から圧縮空気を導入することにより、該圧縮空気により該噴水タンク内の水面が押圧され、噴水ノズルから水が噴出するように構成したことを特徴とする。
【0005】
噴水装置を上記のような構成とすることにより、噴水タンクの自重又は自重と外部荷重により沈降させて水を噴水タンク内に導入できるから、噴水タンク内に水を導入するのに格別の動力を必要としない。また、噴水タンク内に水が充満した時に、該噴水タンク内に単に圧縮空気を供給するだけで、噴水ノズルから水を噴出できるので、構成が簡単でかつランニングコストの安価な噴水装置が実現できる。
【0006】
また、請求項2に記載の発明は、請求項1に記載の噴水装置において、圧縮空気導入口に圧縮空気を導入及び該圧縮空気導入口を大気に開口する手段として、該圧縮空気導入口を圧縮空気供給源に接続及び該圧縮空気導入口を大気中に開口する切換弁を設け、水流入口を水中に開口して水を流入及び該水流入口を閉じて水の流出を阻止する手段として逆止弁を設けたことを特徴とする。
【0007】
上記のように圧縮空気導入口を圧縮空気供給源に接続及び大気に開口する切換弁と、水流入口を水中に開口して水を流入及び閉じて水の流出を阻止する手段として逆止弁を設けたので、切換弁の切換え操作のみで、噴水タンク内への水の導入、噴水ノズルからの噴射を切換え、噴水装置を運転することが可能となる。
【0008】
また、請求項3に記載の発明は、請求項1又は2に記載の噴水装置において、噴水ノズルは噴水タンク内水面が後端水流入口近傍になった時、水の噴出音に加え笛音類似の空気噴出音を発するように構成されたことを特徴とする。
【0009】
上記のように、噴水ノズルは噴水タンク内水面が後端水流入口近傍になった時、水の噴出音に加え笛音類似の空気噴出音を発するので、噴水装置が動作していることを噴水が目視できない場所でも確認することができる。また、この空気噴出音を検出することにより、圧縮空気導入口への圧縮空気の導入を停止し、該圧縮空気導入口を大気に開口する切換弁等の手段の操作信号としても利用できる。
【0010】
【発明の実施の形態】
以下、本発明の実施の形態例を図面に基づいて説明する。図1は本発明に係る噴水装置の構成例を示す図である。図1において、1は噴水タンクであり該噴水タンク1にはその上部に内部に圧縮空気を導入するための圧縮空気導入口2と、底部に水が流入する水流入口3が設けられている。4は噴水ノズルであり、該噴水ノズル4は噴水タンク1の頂部に設けた噴水ノズル取付口5にフランジ6を介して取付けている。噴水ノズル4の先端の水噴出口4aは噴水タンク1の頂部から所定長さだけ突出しており、後端の水流入口4bは噴水タンク1の内部で且つ底部に接近して開口している。
【0011】
圧縮空気導入口2には電磁開閉弁7a及び7bの一端を互いに接続してなる切換弁7が接続され、電磁開閉弁7bの他端は圧縮空気を供給する圧縮空気供給源(図示せず)に接続され、電磁開閉弁7aの他端は大気に開口している。また、水流入口3には逆止弁8の一端が接続され、他端は水中11に開口している。9は噴水タンク1に浮上力を与えるフロートであり、10は噴水タンク1に沈降力を与える外部荷重である。なお、上記フロート9及び外部荷重10は噴水タンク1の外側に直接取付けているように図示しているが、取付け部材を介して取付けてもよいことは当然である。また、外部荷重10は噴水タンク1の内底部に設けてもよい。
【0012】
上記構成の噴水装置において、図1に示すように、切換弁7の電磁開閉弁7aを開き、且つ電磁開閉弁7bを閉じると、噴水タンク1の自重と外部荷重10の重力により噴水タンク1は沈降力を受け、逆止弁8及び水流入口3を通して噴水タンク1内に水Wが流入し、噴水タンク1は次第に沈降し、充満した状態で上記沈降力とフロート9の浮上力がバランスして図示するように、噴水タンク1の頂部を水面12に突出している状態で浮上静止している。なお、噴水タンク1の頂部が水面に露出する必要はない。なお、切換弁7の電磁開閉弁7a、電磁開閉弁7bを空気圧で開閉できる弁とし、空気圧で開閉するように構成してもよい。なお、切換弁7の操作は、噴水タンク1内の水位、圧力及びタイマーによって行ってもよい。
【0013】
図1の状態から図2に示すように切換弁7の電磁開閉弁7aを閉じ、電磁開閉弁7bを開くと、圧縮空気供給源(図示せず)から圧縮空気が電磁開閉弁7b及び圧縮空気導入口2を通して噴水タンク1内に供給される。これにより噴水タンク1内の水面13が押圧され、その結果噴水タンク1内の水Wは噴水ノズル4の水流入口4bに流入し、水噴出口4aから噴水14となって噴出する。
【0014】
噴水ノズル4からの噴水14が続き、図3に示す状態を経過して、図4の状態に達すると、噴水タンク1内の水面13のレベルが噴水ノズル4の水流入口4bより下方となる。すると水流入口4bから空気15が流入するようになり、噴水ノズル4の先端水噴出口4aから空気15が噴出し、水Wは噴出されなくなる。この空気噴出により、噴水ノズル4の先端から笛又は警笛に類似する音色の音が発生し、この音で噴水タンク内に水が無くなったことがわかる。
【0015】
図4の状態から切換弁7の電磁開閉弁7bを閉じ、電磁開閉弁7aを開くと、噴水タンク1内の空気が圧縮空気導入口2及び電磁開閉弁7aを通って大気中に排出されるから、噴水タンク1は自重と外部荷重10により、図5に示すように次第に沈降し、再び図1に示す状態となる。
【0016】
上記のように本噴水装置によれば、噴水タンク1内への水の流入は、噴水タンク1の自重と外部荷重10の重力のみで行われ、水の噴出は噴水タンク1内に圧縮空気を導入するだけで行うので、噴水装置の運転費用(ランニングコスト)が安価となる。なお、切換弁7を構成する電磁開閉弁7a、7bの開閉制御は、遠隔操作により電気的におこなう。例えば、上記噴水ノズル4から発する音を検出したら電磁開閉弁7aを開くと共に、電磁開閉弁7bを閉じ、噴水タンク1内に水を導入して、所定時間(噴水タンク1内に水が充満するのに必要な時間)が経過したら、電磁開閉弁7aを閉じると共に、電磁開閉弁7bを開いて噴水タンク1内に圧縮空気を導入して噴水ノズル4から水を噴出する。
【0017】
また、図6に示すように噴水ノズル4の下端から上方の所定の範囲に多数の小孔4cを設けることにより、噴水タンク1の水面13がこの小孔4cが設けられた範囲に達すると、小孔4cから空気が噴水ノズル4内に侵入し、噴水ノズル4の先端水噴出口4aから水と空気の混合体が噴出され、上記小孔4cが設けられていない噴水ノズルとは異なる音色の音が発せられ、噴水タンク1内の水面13が小孔4cが設けられた範囲に達したことを知らせる等の作用を奏する。
【0018】
図7は本発明に係る噴水装置の他の構成例を示す図で、図7(a)は平面図、図7(b)は側断面図である。図示するように、本噴水装置は環状の噴水タンク1に所定間隔で複数(図では4個)のフロート9が設けられている。また、噴水タンク1の頂部には複数本(図では8本)の噴水ノズル4が立設すると共に、圧縮空気導入口2が設けられ、更に底部には水流入口3が設けられている。
【0019】
圧縮空気導入口2に電磁開閉弁7a、7bで構成される切換弁7が接続され、電磁開閉弁7bの一端は圧縮空気供給源に接続され、電磁開閉弁7aの一端は大気に開口している。水流入口3には逆止弁8の一端が接続され、他端は水中に開口している。
【0020】
上記構成の噴水装置も図1に示す構成の噴水装置と同様、水中に浮かべ、切換弁7の電磁開閉弁7aを開き、電磁開閉弁7bを閉じることにより、噴水タンク1内に逆止弁8を通して水が流入し、噴水タンク1はその自重又は該自重と外部荷重(図示せず)により、沈降する。そして噴水タンク1内に水が充満した状態でフロート9の浮上力と噴水タンク1の自重又は該自重と外部荷重のバランスにより、少なくとも噴水ノズル4の先端が水面に突出した状態で浮上する。
【0021】
上記のように噴水タンク1内に水が充満した状態で、切換弁7の電磁開閉弁7aを閉じ、電磁開閉弁7bを開くと、圧縮空気が噴水タンク1内に導入され、複数本(図では8本)の噴水ノズルから一斉に水が噴出し、噴水を形成する。そして噴水タンク内の水がなくなった状態で、電磁開閉弁7aを開き、電磁開閉弁7bを閉じると上記同様、噴水タンク1内に逆止弁8を通して水が流入し、充満した状態で、噴水タンク1はその自重又は該自重と外部荷重とフロートの浮上力がバランスした状態で停止する。また、このように噴水タンク1を環状とすることにより、噴水タンク1は水面上に安定した状態で浮上する。
【0022】
なお、切換弁7を構成する電磁開閉弁7a及び電磁開閉弁7bの開閉は、上記と同様、遠隔操作により、電気的に行う。なお、空気圧による切換えも可能である。また、噴水タンク1内に供給する圧縮空気源としては、例えば特願平11−113971号の明細書及び図面に開示するように、流水で回転する水車により駆動される空気圧縮機からの圧縮空気を利用することで、噴水装置を極めて安価な費用で運転することができる。
【0023】
【発明の効果】
以上、説明したように各請求項に記載の発明によれば、下記のような優れた効果が期待できる。
【0024】
請求項1に記載の発明によれば、噴水タンクの自重又は自重と外部荷重による沈降力を利用して水を噴水タンク内に導入でき、噴水タンク内に水を導入するのに格別の動力を必要としない。また、噴水タンク内に水が充満した時に、該噴水タンク内に単に圧縮空気を供給するだけで、噴水ノズルから水を噴出できるので、構成が簡単でかつ運転費用(ランニングコスト)の安価な噴水装置が実現できる。
【0025】
また、請求項2に記載の発明によれば、圧縮空気導入口を圧縮空気供給源に接続及び大気に開放する切換弁と、水流入口を水中に開口して水を流入及び閉じて水の流出を阻止する手段として逆止弁を設けたので、切換弁の切換え操作のみで、噴水タンク内への水の導入、噴水ノズルからの噴射を切換えることが可能となる。
【0026】
また、請求項3に記載の発明によれば、噴水ノズルは噴水タンク内水面が後端水流入口近傍になった時、水の噴出音に加え笛音類似の空気噴出音を発するので、噴水装置が動作していることを噴水が目視できない場所でも確認することができる。また、この空気噴出音を検出することにより、圧縮空気導入口への圧縮空気の導入を停止し、該圧縮空気導入口を大気に開口する切換弁等の手段の操作信号としても利用できる。
【図面の簡単な説明】
【図1】本発明に係る噴水装置の構成を示す図である。
【図2】本発明に係る噴水装置の構成を示す図である。
【図3】本発明に係る噴水装置の構成を示す図である。
【図4】本発明に係る噴水装置の構成を示す図である。
【図5】本発明に係る噴水装置の構成を示す図である。
【図6】本発明に係る噴水装置の噴水ノズルの下端部の構成を示す図である。
【図7】本発明に係る噴水装置の他の構成例を示す図で、図1(a)は平面図、図1(b)は側断面図である。
【符号の説明】
1 噴水タンク
2 圧縮空気導入口
3 水流入口
4 噴水ノズル
5 噴水ノズル取付口
6 フランジ
7 切換弁
8 逆止弁
9 フロート
10 外部荷重
11 水中
12 水面
13 水面
14 噴水
15 空気
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fountain device that ejects water, and more particularly to a fountain device that floats on the surface of the water and does not require special power for supplying water.
[0002]
[Prior art]
Fountain devices are used in various fields, for example, for watering parks, ponds, farms, etc., and for improving water quality in water storage and fish farms. And as a means to supply water to such a fountain apparatus, the pump driven with an electric motor is used, and there exists a problem that much electric power is consumed. In particular, a fountain device that is installed in a water storage or fish farm and is used for so-called water quality improvement for enriching dissolved oxygen in water has a problem of high power consumption and high water quality improvement cost.
[0003]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and compressed air that can be manufactured at low cost without requiring special power when the fountain tank floats on the water surface and water is supplied into the fountain tank. An object of the present invention is to provide a fountain device with low operating cost that can eject water in a fountain tank using compressed air produced by driving an air compressor with a water turbine rotating with discharged water such as a dam. To do.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the invention described in claim 1 is provided with a sealed fountain tank having a fountain nozzle, a compressed air inlet, and a water inlet, and the fountain nozzle has a tip water jet outlet outside the fountain tank. Projected, the rear end water inlet is open near the bottom in the fountain tank, the fountain tank is installed on the surface of the water, the interior is empty, the water inlet is open in water, and the compressed air inlet is open to the atmosphere Thus, the self-weight or the self-weight and an external load cause the water to flow into the inside from the water inflow port while sinking in the water, and the internal air is discharged to the atmosphere through the compressed air introduction port. When the fountain tank is filled with water, the water inlet is closed, and the compressed air is introduced from the compressed air inlet, so that the water surface in the fountain tank is pressed by the compressed air and water is ejected from the fountain nozzle. Ni Characterized in that it was.
[0005]
By configuring the fountain device as described above, water can be introduced into the fountain tank by allowing the fountain tank to sink by its own weight or its own weight and an external load. do not need. Further, when the fountain tank is filled with water, it is possible to eject water from the fountain nozzle simply by supplying compressed air into the fountain tank, so that it is possible to realize a fountain device with a simple configuration and low running cost. .
[0006]
The invention according to claim 2 is the fountain device according to claim 1, wherein the compressed air inlet is used as means for introducing compressed air into the compressed air inlet and opening the compressed air inlet into the atmosphere. A switching valve that connects to the compressed air supply source and opens the compressed air inlet to the atmosphere is provided, and the water inlet is opened into the water to inflow water and the water inlet is closed to prevent water outflow. A stop valve is provided.
[0007]
A switching valve that connects the compressed air inlet to the compressed air supply source and opens to the atmosphere as described above, and a check valve as a means for blocking the outflow of water by opening and closing the water inlet to underwater and closing water. Since it is provided, it is possible to operate the fountain apparatus by switching the introduction of water into the fountain tank and the injection from the fountain nozzle only by the switching operation of the switching valve.
[0008]
The invention according to claim 3 is the fountain apparatus according to claim 1 or 2, wherein the fountain nozzle is similar to the whistle sound in addition to the water squirting sound when the water surface in the fountain tank is in the vicinity of the rear water inlet. It is characterized by generating an air blowing sound.
[0009]
As described above, the fountain nozzle emits a whistle-like air blast sound in addition to a water blast sound when the water surface in the fountain tank is in the vicinity of the rear end water inlet, so that the fountain device is operating. Can be confirmed even in a place where is not visible. Further, by detecting this air ejection sound, the introduction of compressed air to the compressed air inlet can be stopped and used as an operation signal for means such as a switching valve that opens the compressed air inlet to the atmosphere.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a configuration example of a fountain device according to the present invention. In FIG. 1, reference numeral 1 denotes a fountain tank. The fountain tank 1 is provided with a compressed air inlet 2 for introducing compressed air therein and a water inlet 3 through which water flows into the bottom. Reference numeral 4 denotes a fountain nozzle. The fountain nozzle 4 is attached to a fountain nozzle mounting port 5 provided at the top of the fountain tank 1 via a flange 6. The water outlet 4a at the tip of the fountain nozzle 4 protrudes from the top of the fountain tank 1 by a predetermined length, and the water inlet 4b at the rear end opens inside the fountain tank 1 and close to the bottom.
[0011]
The compressed air inlet 2 is connected to a switching valve 7 in which one ends of electromagnetic on-off valves 7a and 7b are connected to each other, and the other end of the electromagnetic on-off valve 7b is a compressed air supply source (not shown) for supplying compressed air. The other end of the electromagnetic on-off valve 7a is open to the atmosphere. One end of a check valve 8 is connected to the water inlet 3, and the other end is open to the water 11. Reference numeral 9 denotes a float that gives a levitation force to the fountain tank 1, and 10 denotes an external load that gives a settling force to the fountain tank 1. Although the float 9 and the external load 10 are illustrated as being directly attached to the outside of the fountain tank 1, they may be attached via an attachment member. The external load 10 may be provided on the inner bottom of the fountain tank 1.
[0012]
In the fountain apparatus having the above configuration, as shown in FIG. 1, when the electromagnetic on-off valve 7 a of the switching valve 7 is opened and the electromagnetic on-off valve 7 b is closed, the fountain tank 1 is caused by the weight of the fountain tank 1 and the gravity of the external load 10. In response to the settling force, water W flows into the fountain tank 1 through the check valve 8 and the water inlet 3, and the fountain tank 1 gradually sinks and the buoyant force of the float 9 balances in a filled state. As shown in the figure, the fountain tank 1 floats and is stationary with the top portion protruding from the water surface 12. It is not necessary for the top of the fountain tank 1 to be exposed to the water surface. Note that the electromagnetic on-off valve 7a and the electromagnetic on-off valve 7b of the switching valve 7 may be configured to be opened and closed with air pressure, and may be configured to open and close with air pressure. In addition, you may perform operation of the switching valve 7 with the water level in the fountain tank 1, a pressure, and a timer.
[0013]
When the electromagnetic on-off valve 7a of the switching valve 7 is closed and the electromagnetic on-off valve 7b is opened as shown in FIG. 2 from the state of FIG. 1, compressed air is supplied from a compressed air supply source (not shown) to the electromagnetic on-off valve 7b and the compressed air. The water is supplied into the fountain tank 1 through the inlet 2. As a result, the water surface 13 in the fountain tank 1 is pressed, and as a result, the water W in the fountain tank 1 flows into the water inlet 4b of the fountain nozzle 4 and is ejected as the fountain 14 from the water outlet 4a.
[0014]
When the fountain 14 from the fountain nozzle 4 continues and reaches the state shown in FIG. 4 after the state shown in FIG. 3, the level of the water surface 13 in the fountain tank 1 becomes lower than the water inlet 4 b of the fountain nozzle 4. Then, the air 15 comes to flow in from the water inlet 4b, the air 15 is ejected from the tip water ejection port 4a of the fountain nozzle 4, and the water W is not ejected. By this air ejection, it can be seen that a tone-like sound similar to a whistle or a warning whistle is generated from the tip of the fountain nozzle 4, and this sound indicates that there is no water in the fountain tank.
[0015]
When the electromagnetic on-off valve 7b of the switching valve 7 is closed and the electromagnetic on-off valve 7a is opened from the state of FIG. 4, the air in the fountain tank 1 is discharged into the atmosphere through the compressed air inlet 2 and the electromagnetic on-off valve 7a. Thus, the fountain tank 1 gradually sinks as shown in FIG. 5 due to its own weight and the external load 10, and again enters the state shown in FIG.
[0016]
As described above, according to the present fountain apparatus, the inflow of water into the fountain tank 1 is performed only by the weight of the fountain tank 1 and the gravity of the external load 10, and the jet of water is compressed air into the fountain tank 1. Since it is performed only by introducing, the operation cost (running cost) of the fountain device is reduced. The on / off control of the electromagnetic on / off valves 7a and 7b constituting the switching valve 7 is electrically performed by remote operation. For example, when the sound generated from the fountain nozzle 4 is detected, the electromagnetic on-off valve 7a is opened, the electromagnetic on-off valve 7b is closed, water is introduced into the fountain tank 1, and the fountain tank 1 is filled with water for a predetermined time. When the time required for this has elapsed, the electromagnetic on-off valve 7a is closed, the electromagnetic on-off valve 7b is opened, compressed air is introduced into the fountain tank 1, and water is ejected from the fountain nozzle 4.
[0017]
Moreover, when the water surface 13 of the fountain tank 1 reaches the range in which the small holes 4c are provided by providing a large number of small holes 4c in a predetermined range above the lower end of the fountain nozzle 4 as shown in FIG. Air enters the fountain nozzle 4 from the small hole 4c, and a mixture of water and air is ejected from the water outlet 4a at the tip of the fountain nozzle 4. The tone of the fountain nozzle is different from that of the fountain nozzle not provided with the small hole 4c. A sound is generated, and an effect such as notifying that the water surface 13 in the fountain tank 1 has reached the range where the small holes 4c are provided is achieved.
[0018]
FIG. 7 is a view showing another configuration example of the fountain apparatus according to the present invention, FIG. 7 (a) is a plan view, and FIG. 7 (b) is a side sectional view. As shown in the figure, the present fountain apparatus is provided with a plurality (four in the figure) of floats 9 in an annular fountain tank 1 at predetermined intervals. In addition, a plurality (eight in the figure) of fountain nozzles 4 are erected at the top of the fountain tank 1, a compressed air inlet 2 is provided, and a water inlet 3 is further provided at the bottom.
[0019]
A switching valve 7 composed of electromagnetic on-off valves 7a and 7b is connected to the compressed air introduction port 2. One end of the electromagnetic on-off valve 7b is connected to a compressed air supply source, and one end of the electromagnetic on-off valve 7a opens to the atmosphere. Yes. One end of a check valve 8 is connected to the water inlet 3 and the other end is open to the water.
[0020]
The fountain device having the above-described structure is also floated in water like the fountain device having the structure shown in FIG. 1, and the check valve 8 is placed in the fountain tank 1 by opening the electromagnetic open / close valve 7a of the switching valve 7 and closing the electromagnetic open / close valve 7b. Water flows in through the fountain tank 1 and sinks due to its own weight or due to its own weight and an external load (not shown). Then, in a state where the fountain tank 1 is filled with water, the fountain nozzle 4 floats in a state where at least the tip of the fountain nozzle 4 protrudes from the water surface due to the floating force of the float 9 and the weight of the fountain tank 1 or the balance between the weight and the external load.
[0021]
In the state where the fountain tank 1 is filled with water as described above, when the electromagnetic on-off valve 7a of the switching valve 7 is closed and the electromagnetic on-off valve 7b is opened, compressed air is introduced into the fountain tank 1, and a plurality of (see FIG. Then, water is ejected all at once from eight fountain nozzles to form a fountain. When the electromagnetic on-off valve 7a is opened and the electromagnetic on-off valve 7b is closed with no water in the fountain tank, water flows into the fountain tank 1 through the check valve 8 and fills the fountain. The tank 1 stops in a state where its own weight or the own weight, an external load, and the floating force of the float are balanced. Moreover, by making the fountain tank 1 into an annular shape as described above, the fountain tank 1 floats in a stable state on the water surface.
[0022]
In addition, the electromagnetic on-off valve 7a and the electromagnetic on-off valve 7b constituting the switching valve 7 are electrically opened and closed by remote operation as described above. Note that switching by air pressure is also possible. Moreover, as a compressed air source supplied into the fountain tank 1, for example, as disclosed in the specification and drawings of Japanese Patent Application No. 11-113971, compressed air from an air compressor driven by a water turbine rotating with running water. By using the fountain apparatus, the fountain apparatus can be operated at an extremely low cost.
[0023]
【The invention's effect】
As described above, according to the invention described in each claim, the following excellent effects can be expected.
[0024]
According to the first aspect of the present invention, water can be introduced into the fountain tank by utilizing the dead weight of the fountain tank or the settling force due to its own weight and an external load, and special power is required to introduce water into the fountain tank. do not need. In addition, when the fountain tank is filled with water, it is possible to eject water from the fountain nozzle simply by supplying compressed air into the fountain tank. A device can be realized.
[0025]
According to the second aspect of the present invention, the switching valve that connects the compressed air inlet to the compressed air supply source and opens to the atmosphere, and the water inlet is opened in the water so that the water flows in and closes and the water flows out. Since the check valve is provided as a means for preventing this, the introduction of water into the fountain tank and the injection from the fountain nozzle can be switched only by the switching operation of the switching valve.
[0026]
According to the invention of claim 3, the fountain nozzle emits an air blast sound similar to a whistle sound in addition to a water blast sound when the water surface in the fountain tank is in the vicinity of the rear end water inlet. Can be confirmed even in places where the fountain is not visible. Further, by detecting this air ejection sound, the introduction of compressed air to the compressed air inlet can be stopped and used as an operation signal for means such as a switching valve that opens the compressed air inlet to the atmosphere.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a fountain device according to the present invention.
FIG. 2 is a diagram showing a configuration of a fountain device according to the present invention.
FIG. 3 is a diagram showing a configuration of a fountain device according to the present invention.
FIG. 4 is a diagram showing a configuration of a fountain device according to the present invention.
FIG. 5 is a diagram showing a configuration of a fountain device according to the present invention.
FIG. 6 is a view showing a configuration of a lower end portion of a fountain nozzle of the fountain device according to the present invention.
7A and 7B are diagrams showing another configuration example of the fountain apparatus according to the present invention, in which FIG. 1A is a plan view and FIG. 1B is a side sectional view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Fountain tank 2 Compressed air inlet 3 Water inlet 4 Fountain nozzle 5 Fountain nozzle attachment 6 Flange 7 Switching valve 8 Check valve 9 Float 10 External load 11 Underwater 12 Water surface 13 Water surface 14 Fountain 15 Air

Claims (3)

噴水ノズル、圧縮空気導入口、水流入口を有する密閉型の噴水タンクを具備し、
前記噴水ノズルはその先端水噴出口は前記噴水タンクの外部に突出し、後端水流入口は該噴水タンク内で底部近傍に開口しており、
前記噴水タンクは水面上に設置し内部を空、前記水流入口を水中に開口及び前記圧縮空気導入口を大気中に開口した状態で、その自重又は該自重と外部荷重により、水中に沈降しながら該水流入口から内部に水が流入すると共に、内部の空気が前記圧縮空気導入口を通って大気中に排出されるように構成され、
前記噴水タンクに水が充満した状態で水流入口を閉じ、前記圧縮空気導入口から圧縮空気を導入することにより、該圧縮空気により該噴水タンク内の水面が押圧され、前記噴水ノズルから水が噴出するように構成したことを特徴とする圧縮空気を利用した噴水装置。
A sealed fountain tank having a fountain nozzle, a compressed air inlet, and a water inlet,
The fountain nozzle has a water jet at its front end that protrudes outside the fountain tank, and a water inlet at the rear end that opens near the bottom in the fountain tank.
The fountain tank is installed on the surface of the water, is empty inside, the water inlet is opened in water, and the compressed air inlet is opened in the atmosphere, while sinking in water due to its own weight or its own weight and external load. The water flows into the inside from the water inlet, and the internal air is configured to be discharged into the atmosphere through the compressed air inlet,
When the fountain tank is filled with water, the water inlet is closed, and compressed air is introduced from the compressed air inlet, whereby the water surface in the fountain tank is pressed by the compressed air, and water is ejected from the fountain nozzle. A fountain device using compressed air, characterized in that it is configured to do so.
請求項1に記載の噴水装置において、
前記圧縮空気導入口に圧縮空気を導入及び該圧縮空気導入口を大気に開口する手段として、該圧縮空気導入口を圧縮空気供給源に接続及び該圧縮空気導入口を大気中に開口する切換弁を設け、前記水流入口を水中に開口して水を流入及び該水流入口を閉じて水の流出を阻止する手段として逆止弁を設けたことを特徴とする噴水装置。
The fountain device according to claim 1,
As a means for introducing compressed air into the compressed air inlet and opening the compressed air inlet to the atmosphere, a switching valve for connecting the compressed air inlet to a compressed air supply source and opening the compressed air inlet into the atmosphere And a check valve is provided as means for blocking the outflow of water by opening the water inflow opening into the water and closing the water inflow opening.
請求項1又は2に記載の噴水装置において、
前記噴水ノズルは前記噴水タンク内水面が後端水流入口近傍になった時、水の噴出音に加え笛音類似の空気噴出音を発するように構成されたことを特徴とする噴水装置。
In the fountain device according to claim 1 or 2,
The fountain nozzle is configured to emit an air blast sound similar to a whistle sound in addition to a water blast sound when the water surface in the fountain tank is in the vicinity of the rear end water inlet.
JP2000167951A 2000-06-05 2000-06-05 Fountain equipment using compressed air Expired - Fee Related JP3734676B2 (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000167951A JP3734676B2 (en) 2000-06-05 2000-06-05 Fountain equipment using compressed air

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Publication number Priority date Publication date Assignee Title
JP2002282888A (en) * 2001-03-26 2002-10-02 Okinawa Kaihatsuchiyou Okinawa Sogo Jimukiyokuchiyou Improvement system for water quality
KR100827928B1 (en) 2008-02-12 2008-05-07 문희수 Water injection system
US20140203101A1 (en) * 2012-12-19 2014-07-24 Mark Fuller Water Shooter Device and Associated Visual Water Effects
US20140263715A1 (en) * 2013-03-15 2014-09-18 Mark Fuller Floating Water Delivery Device

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