JP2011117921A

JP2011117921A - Waterdrop forming device

Info

Publication number: JP2011117921A
Application number: JP2009296025A
Authority: JP
Inventors: Masayuki Oishi; 正行大石; Fumiharu Yoshida; 文晴吉田
Original assignee: Daiki Rika Kogyo Co Ltd
Current assignee: Daiki Rika Kogyo Co Ltd
Priority date: 2009-12-07
Filing date: 2009-12-07
Publication date: 2011-06-16
Anticipated expiration: 2029-12-07
Also published as: JP5374791B2

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem wherein, in a conventional needle system rainfall device, though the amount of rainfall can be changed by adjusting the amount of water sent to rainfall needles having a fixed diameter respectively aligned in a grid shape, a waterdrop having a large diameter cannot be formed stably. <P>SOLUTION: This invention is directed to a method capable of forming a waterdrop having a large diameter which has been impossible by a conventional method. As shown in figure 2 and figure 3, by receiving once water discharged from a discharge port 5 by waterdrop formation domain 101 of an inclined surface 119, a waterdrop formed of water discharged from the discharge port 5 and a small-diameter discharge waterdrop 307 formed by a tearing-off phenomenon generated in the discharge port at a discharging time can be absorbed as one formed waterdrop 315 having a large diameter, and the formed waterdrop 315 having a large diameter formed as one waterdrop on the waterdrop formation domain 101 of the inclined surface 119 is slid down gradually by its own weight from the waterdrop formation domain 101 to an acceleration domain 103 of the inclined surface 119, and thereafter the formed waterdrop 315 having the large diameter is separated from the edge 115 of the inclined surface 119, and can be dropped as one approximately-spherical formed waterdrop 315 having the large diameter. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、直径１ｍｍ程度の小水滴径から直径１０ｍｍを越える大水滴径まで可変して形成させることができるのに好適な水滴形成装置に関するものである。 The present invention relates to a water droplet forming apparatus suitable for variably forming from a small water droplet diameter of about 1 mm in diameter to a large water droplet diameter exceeding 10 mm in diameter.

降雨影響に関する試験や研究用に用いられる試験装置には様々な方式がある中で、より自然に近い降雨を再現することを目的とした降雨針を格子状に並べて降雨させる装置がある（以下針方式降雨装置という）。 There are various types of testing equipment used for testing and research related to rainfall effects, and there is a device that places rain needles in a grid pattern for the purpose of reproducing more natural rain (hereinafter referred to as needles). It is called a method rainfall device).

針方式降雨装置では、格子状に並べられたすべての降雨針に極わずかな水圧を定常的に与えることにより、降雨針の針先に水滴を形成させ、水滴の自重による降雨針からの自然落下において降雨をさせている。 In the needle type rain device, water droplets are formed at the tip of the rain needle by constantly applying a slight water pressure to all the rain needles arranged in a grid, and the natural fall from the rain needle due to the weight of the water drop It is raining at.

例えば、図４に示されるように、従来の針方式降雨装置では、注射針のように中空の細い直径２ｍｍ程度の円筒状になった針先の先端が水平方向に平行な断面をもつ降雨針４０１に水を送り、降雨針４０１の先端に形成される水滴の自重で落下させる方法で人工的に降雨に似せた状態を作り出している。さらに従来の針方式降雨装置では、降雨状態を作り出したい領域に合わせて、降雨針４０１を格子状に並べて降雨させている。また、格子状に並べた降雨針４０１と降雨針４０１の間隔にも均一に降雨させるために、降雨針４０１に遠心力をかけ格子状に並べた降雨針４０１の間隔に降雨針４０１の先端に形成される水滴をランダムに落下させるようにしている（例えば、特許文献１、２参照）。さらに降雨針４０１の先端に形成される水滴に空気をあててランダムに落下させるようにする形態もある（例えば、特許文献３参照）。降雨針４０１の先端に形成される水滴が落下するまでの状態を時系列順に説明すると、降雨針４０１による水滴形成状態４００は、降雨針４０１にポンプなどの送水手段により送られた水は、吐出状態４０１−１から吐出状態４０１−２、吐出状態４０１−３、吐出状態４０１−４と時系列矢印Ａで示すように降雨針４０１の先端で成長して重力方向に落下する。このとき降雨針４０１形成される水滴は直径３．０ｍｍ程度が限界である。また、従来の針方式降雨装置では、自重で落下する水滴の径を可変するため、格子状に並べられた降雨針４０１に遠心力を与えて、降雨針４０１の針先にできる水滴を強制的に振り落とす装置を付加している。つまり、この遠心力形成装置で与える回転数を可変させることで水滴径を１．７ｍｍから約３．０ｍｍ程度まで可変することができる。さらに、降雨針に遠心力を加えることで、格子状に並べられた降雨針の間に、ランダムに雨滴を落下させることが可能となり、降雨させる面全体にむらなく降雨させることができ自然降雨状態に近づけることができる。しかしながら、降雨針４０１に遠心力を加えるもしくは空気をあてることは水滴径を小さく可変することには有効な手段ではあるが、水滴径を大きく（例えば、直径１０ｍｍ以上の水滴）形成することはできない。 For example, as shown in FIG. 4, in a conventional needle type rain apparatus, a rain needle having a tip of a hollow, thin cylindrical shape having a diameter of about 2 mm like an injection needle has a cross section parallel to the horizontal direction. Water is sent to 401 and dropped by the weight of the water droplet formed at the tip of the rain needle 401 to create a state artificially resembling rain. Further, in the conventional needle type rain device, the rain needles 401 are arranged in a lattice pattern to rain according to the region where the rain condition is desired. Further, in order to uniformly rain the distance between the rain needles 401 arranged in a grid pattern, the centrifugal force is applied to the rain needles 401 and the distance between the rain needles 401 arranged in a grid pattern is set at the tip of the rain needle 401. The formed water droplets are randomly dropped (see, for example, Patent Documents 1 and 2). Further, there is a mode in which air is applied to a water droplet formed at the tip of the rain needle 401 so as to be dropped at random (see, for example, Patent Document 3). The state until the water droplet formed at the tip of the rain needle 401 falls will be described in chronological order. In the water droplet formation state 400 by the rain needle 401, the water sent to the rain needle 401 by water feeding means such as a pump is discharged. From the state 401-1 to the discharge state 401-2, the discharge state 401-3, the discharge state 401-4 and the time series arrow A, it grows at the tip of the rain needle 401 and falls in the direction of gravity. At this time, the water drop formed by the rain needle 401 has a limit of about 3.0 mm in diameter. Further, in the conventional needle type rain device, the diameter of the water drops falling by its own weight is changed, so that centrifugal force is applied to the rain needles 401 arranged in a lattice shape to force the water drops formed at the needle tips of the rain needles 401. A device to shake off is added. That is, the water droplet diameter can be varied from 1.7 mm to about 3.0 mm by varying the rotational speed applied by the centrifugal force generator. In addition, by applying centrifugal force to the rain needle, it is possible to drop rain drops randomly between the rain needles arranged in a grid, and it is possible to make it rain evenly on the entire surface to be rained, so that it is a natural rain state Can be approached. However, applying centrifugal force or applying air to the rain needle 401 is an effective means for making the water droplet diameter small, but it is not possible to form a large water droplet diameter (for example, a water droplet having a diameter of 10 mm or more). .

実公昭６１−４４５８７号公報Japanese Utility Model Publication No. 61-44587 実開昭６１−３３６６１号公報Japanese Utility Model Publication No. 61-33661 実用新案登録第３１５２１１４号公報Utility Model Registration No. 3152114

従来の針方式降雨装置で前記降雨針４０１よりさらに水滴径を大きくする形態について図５で説明する。大きな直径の水滴を形成するために、前記降雨針４０１の先端の水滴を大きく成長させることが必要である。すなわち、水滴がその自重で重力方向に落下しないように前記降雨針４０１の先端と水滴の接触面積を大きくして表面張力を増大させるが必要である。そこで、表面張力を増大させるために水滴形成傘５０２の構造を有した傘付傘付降雨針５０１がある。傘付降雨針５０１の先端に形成される水滴が落下するまでの状態を時系列順に説明すると、傘付降雨針５０１による水滴形成状態５００は、傘付降雨針５０１にポンプなどの送水手段により送られた水は、吐出状態５０１−１から吐出状態５０１−２、吐出状態５０１−３、吐出状態５０１−４と時系列矢印Ａで示すように傘付降雨針５０１の先端で成長して重力方向に落下する。このとき水滴形成傘５０２の直径を大きくしても形成される水滴が自重で重力方向に落下するために、傘付降雨針５０１形成される水滴は直径４．０ｍｍ程度が限界である。このように、従来の針方式降雨装置では、格子状に並べられた一定径の降雨針に送り込む水の量を調節することにより降雨量は可変することができる。また、降雨針４０１に遠心力を加えるもしくは空気をあてることで水滴径を小さくすることは可能であった。しかしながら、従来の針方式降雨装置で傘付降雨針５０１を用いた場合でも４．０ｍｍ以上の水滴径を任意にかつ安定的に形成し落下させることが困難であった。 An embodiment in which the water droplet diameter is made larger than that of the rain needle 401 in the conventional needle type rain device will be described with reference to FIG. In order to form a water droplet having a large diameter, it is necessary to grow the water droplet at the tip of the rain needle 401 large. That is, it is necessary to increase the surface tension by increasing the contact area between the tip of the rain needle 401 and the water droplet so that the water droplet does not fall in the direction of gravity due to its own weight. Therefore, there is an umbrella-equipped rain needle 501 having the structure of a water drop forming umbrella 502 in order to increase the surface tension. The state until the water droplet formed at the tip of the rain needle with umbrella 501 falls will be described in chronological order. The water droplet formation state 500 with the rain needle with umbrella 501 is sent to the rain needle with umbrella 501 by water feeding means such as a pump. The discharged water grows from the discharge state 501-1 to the discharge state 501-2, the discharge state 501-3, the discharge state 501-4, and the tip of the umbrella-shaped rain needle 501 as indicated by the time series arrow A, and the direction of gravity Fall into. At this time, even if the diameter of the water droplet forming umbrella 502 is increased, the formed water droplet falls in the direction of gravity due to its own weight. Therefore, the water droplet formed with the umbrella-equipped rain needle 501 has a limit of about 4.0 mm in diameter. As described above, in the conventional needle type rain device, the amount of rainfall can be varied by adjusting the amount of water fed to the rain needles of a certain diameter arranged in a grid. In addition, it was possible to reduce the water droplet diameter by applying centrifugal force to the rain needle 401 or applying air. However, even when the umbrella-type rain needle 501 is used in a conventional needle type rain device, it is difficult to arbitrarily and stably form and drop a water droplet diameter of 4.0 mm or more.

さらに、前記降雨針４０１と前記傘付降雨針５０１よりさらに水滴径を大きくする従来の形態について図６と図７で説明する。大きな直径の水滴を形成するために、前記降雨針４０１と前記傘付降雨針５０１の中空の円筒部が直径６．０ｍｍ程度で先端が水平方向に平行な断面をもつノズル６０１を用いることがある。ノズル６０１の先端に形成される水滴が落下するまでの状態を時系列順に説明すると、ノズル６０１による水滴形成状態６００は、ノズル６０１にポンプなどの送水手段により送られた水は、吐出状態６０１−１から吐出状態６０１−２、吐出状態６０１−３、吐出状態６０１−４と時系列矢印Ａで示すようにノズル６０１の先端で成長して重力方向に落下する。しかしながら、このときノズル６０１の先端において水の表面張力がうまく働かない場合に、図７で示す水滴形成状態７００のように、ポンプなどの送水手段により送られた水がノズル６０１中空の円筒部の内壁を伝い、吐出状態７０１−１から吐出状態７０１−２、吐出状態７０１−３、吐出状態７０１−４と時系列矢印Ａで示すようにノズル６０１の先端で水滴が大きく成長せず重力方向に落下してしまう場合がある。そこで、ハニカム構造物や孔子状物をノズル６０１の先端に取り付け水の表面張力が効くようにしても、水滴が自重により落下するため、ノズル６０１で形成できる水滴の直径は、水質と水の温度に影響されるが概ね６．０ｍｍ程度が限界である。このことは、つまり大きな直径の水滴（例えば、直径１０ｍｍ以上の水滴）を得ようとしてノズル６０１の直径を大きくしても水滴径を大きく形成する手段とならいことを示している。さらに、ノズル６０１の先端において４．０ｍｍ程度の水滴を形成して落下させようとすると形成される水滴が水滴自らの自重により自然落下するとき、落下する水滴と降雨針の先端に残る水との間の水が引きちぎられることにより、落下する水滴の後に径の小さな水滴６０１−５が同時に形成されてしまう現象が起きる。このようにノズル６０１先端に形成させた水滴を落下させる方法では、任意の径の水滴以外の径の小さな水滴６０１−５が発生してしまい、これを防ぐことは構造上容易でない。また針方式降雨装置では、水の表面張力や温度・組成・粘性など微妙な条件変動が水滴形成を阻害して直径４．０ｍｍ以上の安定的な水滴径の形成がおこなえない。さらに、針方式降雨装置として使用する水は通常、水道水もしくは純水を使用するため、使用する水の粘性などを制御する薬剤を使用できない。このように、針方式降雨装置において降雨針４０１、傘付降雨針５０１、ノズル６０１を使用して大きな直径の水滴（例えば、直径１０ｍｍ以上の水滴）を安定的に形成することができなかった。 Further, a conventional configuration in which the water droplet diameter is made larger than that of the rain needle 401 and the umbrella-equipped rain needle 501 will be described with reference to FIGS. In order to form water droplets having a large diameter, a nozzle 601 having a hollow cylindrical portion of the rain needle 401 and the umbrella-equipped rain needle 501 having a diameter of about 6.0 mm and a tip parallel to the horizontal direction may be used. . The state until the water droplet formed at the tip of the nozzle 601 falls will be described in chronological order. In the water droplet formation state 600 by the nozzle 601, the water sent to the nozzle 601 by water supply means such as a pump is the discharge state 601- From 1 to the discharge state 601-2, discharge state 601-3, discharge state 601-4 and time series arrow A, it grows at the tip of the nozzle 601 and falls in the direction of gravity. However, if the surface tension of the water does not work well at the tip of the nozzle 601 at this time, the water sent by the water feeding means such as a pump is transferred to the hollow cylindrical portion of the nozzle 601 as in the water droplet formation state 700 shown in FIG. Along the inner wall, as shown by the time-series arrow A from the discharge state 701-1 to the discharge state 701-2, the discharge state 701-3, and the discharge state 701-4, the water droplets do not grow greatly at the tip of the nozzle 601 in the direction of gravity. It may fall. Therefore, even if a honeycomb structure or a confetti is attached to the tip of the nozzle 601 so that the surface tension of the water is effective, the water droplet falls by its own weight, so the diameter of the water droplet that can be formed by the nozzle 601 is the water quality and water temperature. However, the limit is approximately 6.0 mm. This indicates that even if the diameter of the nozzle 601 is increased in order to obtain water droplets having a large diameter (for example, water droplets having a diameter of 10 mm or more), the water droplet diameter cannot be increased. Furthermore, when a water droplet of about 4.0 mm is formed and dropped at the tip of the nozzle 601, when the water droplet is naturally dropped by its own weight, the falling water droplet and the water remaining at the tip of the rain needle When the water in between is torn off, a phenomenon occurs in which water droplets 601-5 having a small diameter are simultaneously formed after the falling water droplets. Thus, in the method of dropping the water droplets formed at the tip of the nozzle 601, water droplets 601-5 having a small diameter other than water droplets having an arbitrary diameter are generated, and it is not easy to prevent this structurally. Moreover, in the needle type rain apparatus, subtle fluctuations in conditions such as the surface tension of water, temperature, composition, and viscosity hinder the formation of water droplets, and stable water droplet diameters of 4.0 mm or more cannot be formed. Furthermore, since the water used as a needle type rain apparatus usually uses tap water or pure water, a chemical that controls the viscosity of the water used cannot be used. As described above, it has been impossible to stably form water droplets having a large diameter (for example, water droplets having a diameter of 10 mm or more) using the rain needle 401, the umbrella-equipped rain needle 501 and the nozzle 601 in the needle type rain device.

Means to solve the problem

本発明は、このような問題を解決しようとするもので、水を吐出する吐出口と、前記吐出口の鉛直下側に配置されて傾斜面を有する滑落台を備え、前記吐出口から吐出された水を前記傾斜面で受け止めて水滴にし、更に前記水滴を前記傾斜面に沿って下方に案内し、前記傾斜面の下側の縁部から落下させる特徴を備えた水滴形成装置である。 The present invention is intended to solve such a problem, and includes a discharge port that discharges water and a slide base that is disposed vertically below the discharge port and has an inclined surface, and is discharged from the discharge port. The water droplet forming apparatus is characterized in that the water is received by the inclined surface to form water droplets, and further the water droplet is guided downward along the inclined surface and dropped from the lower edge of the inclined surface.

前記傾斜面は、前記吐出口の水を受け止める水滴形成領域と、前記水滴形成領域よりも下方に形成されて前記水滴形成領域よりも傾斜角が大きい加速領域を備えた水滴形成装置である。 The inclined surface is a water droplet forming apparatus including a water droplet forming region that receives water from the discharge port and an acceleration region that is formed below the water droplet forming region and has a larger inclination angle than the water droplet forming region.

前記傾斜面の角度を変える角度制御装置を備えている水滴形成装置である。 It is a water droplet forming device provided with an angle control device that changes the angle of the inclined surface.

前記傾斜面の下側の前記縁部が湾曲している特徴を備えた水滴形成装置である。 It is a water droplet forming apparatus provided with the characteristic that the edge part below the inclined surface is curved.

前記傾斜面は、前記水滴を案内する溝が傾斜方向に沿って形成されていることを特徴とする水滴形成装置である。 The inclined surface is a water droplet forming apparatus characterized in that a groove for guiding the water droplet is formed along the inclined direction.

前記吐出口に脈動させながら水を送水するポンプを備えている水滴形成装置である。 It is a water droplet forming apparatus provided with a pump for supplying water while pulsating to the discharge port.

前記吐出口と前記ポンプの間に逆止弁を備え、送水する水の脈動の圧力を前記吐出口の水滴に伝える特徴を備えた水滴形成装置である。 The water droplet forming apparatus includes a check valve between the discharge port and the pump, and transmits a pulsating pressure of water to be supplied to the water droplets of the discharge port.

前記縁部の途中が、前記水滴から離れる方向に折れ曲がっている特徴を備えた水滴形成装置である。 In the water droplet forming device, the middle of the edge portion is bent in a direction away from the water droplet.

前記縁部の折れ曲がり角度は、鋭角である特徴を備えた水滴形成装置である。 The bend angle of the edge portion is a water droplet forming apparatus having a feature of being an acute angle.

The invention's effect

本発明は、吐出口から吐出された水を、一旦傾斜面の水滴形成領域で受けることにより、吐出口から吐出された水でできる水滴と吐出時に吐出口で発生する引きちぎり現象による小径の水滴を１個の水滴として吸収することができるとともに、傾斜面の水滴形成領域で１個の水滴に形成された水滴は、その自重で徐々に傾斜面の水滴形成領域から加速領域へと滑り落ち、その後、水滴は傾斜面の縁部を離れほぼ球状の１個の水滴として落下させることが可能となる。 The present invention receives water discharged from the discharge port once in the water droplet formation region on the inclined surface, so that water droplets made of water discharged from the discharge port and small diameter water droplets due to tearing phenomenon that occurs at the discharge port at the time of discharge Can be absorbed as one water droplet, and the water droplet formed in one water droplet formation region on the inclined surface gradually slides down from the water droplet formation region on the inclined surface to the acceleration region by its own weight, Thereafter, the water droplets can leave the edge of the inclined surface and be dropped as one substantially spherical water droplet.

また、吐出口から吐出する水量を調節することで、傾斜面の水滴形成領域で１個の水滴に形成された水滴の大きさを可変することができる。つまり、吐出口から吐出する水量を調節することで任意の径を有した水滴を安定的に形成することが可能となる。 Further, by adjusting the amount of water discharged from the discharge port, the size of the water droplet formed on one water droplet can be varied in the water droplet formation region on the inclined surface. That is, it is possible to stably form water droplets having an arbitrary diameter by adjusting the amount of water discharged from the discharge port.

さらに、吐出口に対して脈動させながら送水するので、吐出量を均一化することが可能となり、また、形成したい任意の大きな直径の水滴の体積量に合わせて吐出口に送水する水量を調節することも可能となる。また、吐出口に送水する水の脈動の圧力を確実に吐出口の水滴に伝えるために逆止弁を併用することで吐出口の吐出量を均一化させることが可能となる。 Furthermore, since water is fed while pulsating the discharge port, the discharge amount can be made uniform, and the amount of water fed to the discharge port is adjusted according to the volume of water droplets having an arbitrarily large diameter to be formed. It is also possible. In addition, the discharge amount of the discharge port can be made uniform by using the check valve together in order to reliably transmit the pressure of the pulsation of the water supplied to the discharge port to the water droplets of the discharge port.

従来形成することが困難であった径の大きな水滴の再現が本装置で可能となり、自然界の状態に近い降雨を再現する降雨装置にとして、降雨影響に関する試験や研究用として利用することができる。 This device can reproduce water droplets with large diameters that have been difficult to form in the past, and can be used as a rain device that reproduces rain that is close to the state of nature, for testing and research on rainfall effects.

任意の水滴径を形成して滑落させるには、傾斜面に吐出する水量をポンプ側で調整することと、傾斜面の角度を調節する機能を付加すること、あるいはそれらを組み合わせることにより、装置設計の自由度を向上させることができる。 In order to form an arbitrary water droplet size and slide it down, adjust the amount of water discharged to the inclined surface on the pump side, add a function to adjust the angle of the inclined surface, or combine them to design the device The degree of freedom can be improved.

本発明の第１実施形態に係る水滴形成装置の構成図である。It is a lineblock diagram of the water droplet forming device concerning a 1st embodiment of the present invention. 同水滴形成装置の水滴形成・滑落部の詳細図である。It is detail drawing of the water droplet formation and sliding part of the water droplet formation apparatus. 水滴形成の時系列的状態変化の説明図である。It is explanatory drawing of the time-sequential state change of water droplet formation. 降雨針による水滴形成の時系列的状態変化の説明図である。It is explanatory drawing of the time-sequential state change of the water droplet formation by a rain needle. 傘付降雨針による水滴形成の時系列的状態変化の説明図である。It is explanatory drawing of the time-sequential state change of the water droplet formation by the rain needle with an umbrella. ノズルによる水滴形成の時系列的状態変化の説明図である。It is explanatory drawing of the time-sequential state change of the water droplet formation by a nozzle. ノズルによる水滴形成の時系列的状態変化の説明図である。It is explanatory drawing of the time-sequential state change of the water droplet formation by a nozzle. Ｖ字型溝を付けた水滴形成・滑落部の斜視図である。It is a perspective view of the water droplet formation and sliding part which attached the V-shaped groove | channel. 従来の縁部（湾曲縁部）による水滴形成の時系列的状態変化の説明図である。It is explanatory drawing of the time-sequential state change of the water droplet formation by the conventional edge part (curved edge part). 本発明の第２実施形態に係る水滴形成・滑落部の縁部（鋭角縁部）による水滴形成の時系列的状態変化の説明図である。It is explanatory drawing of the time-sequential state change of the water droplet formation by the edge part (acute angle edge part) of the water droplet formation and sliding part which concerns on 2nd Embodiment of this invention.

本発明の実施形態に係る水滴形成装置の構成について図１で説明する。水滴形成装置１は、水の吐出口５に供給する水を貯える水槽２５と、吐出口５に対して脈動させながら送水するポンプ２１と、ポンプ２１と連動して開閉する電磁弁１９と、吐出口５に送水するポンプ２１の脈動の圧力を確実に吐出口５の先端の水滴に伝えるための逆止弁１３と、水槽２５から吐出口５へ送水する送水管２３および送水管１１と、送水管１１から供給された水を吐出口５に分岐して供給する連通管９と、連通管９から金具３に取り付けられた吐出口５に送水された水を供給するために接続されたチューブ７と、吐出口５供給する水流量を調節するバルブ１５と、水流量を監視する流量計１７と、吐出口５から吐出された水を水滴として形成して滑落させる水滴形成・滑落部１００と水滴形成・滑落部１００の角度調整と水供給用の電磁弁１９とポンプ２１を制御するコントロールユニット２７とで構成されている。 A configuration of a water droplet forming apparatus according to an embodiment of the present invention will be described with reference to FIG. The water droplet forming apparatus 1 includes a water tank 25 that stores water to be supplied to the water discharge port 5, a pump 21 that supplies water while pulsating the discharge port 5, an electromagnetic valve 19 that opens and closes in conjunction with the pump 21, A check valve 13 for reliably transmitting the pressure of the pulsation of the pump 21 that supplies water to the outlet 5 to the water droplets at the tip of the discharge port 5, a water supply tube 23 and a water supply tube 11 that supply water from the water tank 25 to the discharge port 5, A communication pipe 9 that branches and supplies water supplied from the water pipe 11 to the discharge port 5, and a tube 7 that is connected to supply water fed from the communication pipe 9 to the discharge port 5 attached to the metal fitting 3. A valve 15 for adjusting the flow rate of water supplied to the discharge port 5, a flow meter 17 for monitoring the water flow rate, a water droplet forming / sliding portion 100 for forming the water discharged from the discharge port 5 as a water droplet and sliding it down, and a water droplet Angle adjustment and water supply of formation / sliding part 100 It is composed of a control unit 27 for controlling the solenoid valve 19 and pump 21 for use.

次に、水滴生成装置の水滴形成・滑落部１００について図２で説明する。水滴形成・滑落部１００は、水滴形成領域１０１と加速領域１０３と縁部１１５が水滴の滑落方向に連続して形成される傾斜面１１９と、傾斜面１１９を支える取付台１０５と、取付台１０５を揺動することができるボールベアリング１０９と、ボールベアリング１０９を支える支柱１１１と、傾斜面１１９を支える取付台１０５を前後に揺動させる前後角度調整モーター１０７と、取付台１０５を左右に揺動させる左右角度調整モーター１１３とで構成されている。なお、加速領域１０３は、水滴形成領域１０１の傾斜角よりも大きな傾斜角に形成され、水滴形成領域１０１から滑落してきた水滴にさらに加速を付けて縁部１１５に案内する。また、縁部１１５は、水滴の滑落方向の下側に（滑落方向に凸となるように）丸まるように湾曲して形成されている。これにより、加速領域１０３で加速された水滴は、湾曲部で縁部１１５から離れ易くなっている。 Next, the water droplet forming / sliding portion 100 of the water droplet generating device will be described with reference to FIG. The water droplet forming / sliding portion 100 includes a water droplet forming region 101, an acceleration region 103, and an edge 115 formed continuously in the sliding direction of the water droplet, a mounting base 105 that supports the inclined surface 119, and a mounting base 105. A ball bearing 109 capable of swinging, a support column 111 supporting the ball bearing 109, a front / rear angle adjusting motor 107 swinging the mounting base 105 supporting the inclined surface 119 back and forth, and swinging the mounting base 105 left and right It is comprised with the left-right angle adjustment motor 113 to be made. The acceleration region 103 is formed at an inclination angle larger than the inclination angle of the water droplet formation region 101, and further accelerates and guides the water droplet sliding down from the water droplet formation region 101 to the edge 115. Further, the edge 115 is formed to be curved so as to be rounded downward (so as to be convex in the sliding direction) below the sliding direction of the water droplets. Thereby, the water droplet accelerated in the acceleration area | region 103 becomes easy to leave | separate from the edge part 115 by a curved part.

水滴形成装置の水滴形成手順について、図１で説明する。水槽２５に蓄えられた水は、送水管２３からポンプ２１に供給され、電磁弁１９はポンプ２１の駆動と連動して弁を開き、ポンプ２１から送り出された水はバルブ１５で流量を調節して逆支弁１３を通過して送水管１１により連通管９に流れ、連通管９に取り付けられたチューブ７から、金具３に取り付けられた吐出口５へと供給される。吐出口５への水の供給量は流量計１７で確認することができる。また、電磁弁１９の開閉と、ポンプ２１の駆動はコントロールユニット２７で制御される。 The water droplet forming procedure of the water droplet forming apparatus will be described with reference to FIG. The water stored in the water tank 25 is supplied to the pump 21 from the water supply pipe 23, the solenoid valve 19 opens the valve in conjunction with the driving of the pump 21, and the water sent from the pump 21 adjusts the flow rate by the valve 15. Then, it passes through the reverse support valve 13, flows into the communication pipe 9 through the water supply pipe 11, and is supplied from the tube 7 attached to the communication pipe 9 to the discharge port 5 attached to the metal fitting 3. The amount of water supplied to the discharge port 5 can be confirmed with the flow meter 17. The control unit 27 controls opening / closing of the electromagnetic valve 19 and driving of the pump 21.

続いて、水滴形成装置の水滴形成手順について図２と図３で説明する。図３は水滴形成・滑落部１００で吐出口５から吐出された水が水滴形成・滑落部１００で水滴として形成され滑落するまでを水滴形成状態３００Ａから水滴形成状態３００Ｂ、水滴形成状態３００Ｃ、水滴形成状態３００Ｄ、水滴形成状態３００Ｅ、水滴形成状態３００Ｆ、水滴形成状態３００Ｇへと時系列順に表している。時系列順に説明すると、３００Ａで表すように、吐出口５の先端にポンプ２１から送り出された水が吐出水状態３０３−１のように鉛直方向に出る。その後、３００Ｂで表すように吐出口５の先端の水は吐出水状態３０３−２のように徐々に成長する。その後、３００Ｃで表すようにさらに成長した吐出口５の先端の水は吐出水状態３０３−３のように、吐出口５から引きちぎられるように吐出口５の鉛直下部の水にくびれが出来始める。その後、３００Ｄで表すように吐出口５から引きちぎられた水は、大径の吐出水滴３０５が形成されると同時に引きちぎられたくびれ部分で小径の吐出水滴３０７が形成され吐出水落下方向３０９に鉛直落下する。その後、３００Ｅで表すように水滴形成・滑落部１００の傾斜面１１９の水滴形成領域１０１に先に落下した大径の吐出水滴３０５にわずかに遅れて落下した小径の吐出水滴３０７がひとつにまとまり、３００Ｆで表すように大きな形成水滴３１５（例えば、直径１０ｍｍ以上の水滴）となり、形成水滴３１５はその自重で傾斜面１１９に案内されながら形成水滴滑落方向３１１に徐々に滑落をはじめ、加速領域１０３で加速された形成水滴３１５は、その後、３００Ｇで表すように傾斜面１１９の縁部１１５から離れて、形成水滴落下方向３１２に形成水滴３１５が落下する。なお、水滴形成領域１０１から滑落してきた水滴は、水滴形成領域よりも傾斜角の大きい加速領域１０３で加速されるとともに、回転を始め、その回転の遠心力により略球状の水滴となって回転しながら落下する。 Subsequently, a water droplet forming procedure of the water droplet forming apparatus will be described with reference to FIGS. FIG. 3 shows the water droplet formation state 300A to the water droplet formation state 300B, the water droplet formation state 300C, and the water droplets from the water droplet formation / sliding portion 100 until the water discharged from the discharge port 5 is formed as water droplets in the water droplet formation / sliding portion 100. The formation state 300D, the water droplet formation state 300E, the water droplet formation state 300F, and the water droplet formation state 300G are shown in chronological order. If it demonstrates in time series order, as represented by 300A, the water sent out from the pump 21 to the front-end | tip of the discharge outlet 5 will go out to a perpendicular direction like the discharge water state 303-1. Thereafter, as indicated by 300B, the water at the tip of the discharge port 5 gradually grows as in the discharge water state 303-2. After that, as indicated by 300C, the water at the tip of the discharge port 5 that has further grown begins to be constricted in the water below the discharge port 5 so as to be torn off from the discharge port 5 as in the discharge water state 303-3. Thereafter, as shown by 300D, the water torn off from the discharge port 5 is formed in a narrow diameter portion at the constricted portion at the same time as the large-diameter discharge water droplet 305 is formed, and perpendicular to the discharge water falling direction 309. Fall. Thereafter, as indicated by 300E, small-diameter discharge water droplets 307 that fall slightly behind the large-diameter discharge water droplets 305 that have fallen first onto the water-drop formation region 101 of the inclined surface 119 of the water-drop formation / sliding portion 100 are gathered together. As shown by 300F, a large formed water droplet 315 (for example, a water droplet having a diameter of 10 mm or more) is formed, and the formed water droplet 315 gradually slides in the formed water droplet sliding direction 311 while being guided by the inclined surface 119 by its own weight. Thereafter, the formed water droplet 315 is separated from the edge 115 of the inclined surface 119 as represented by 300G, and the formed water droplet 315 falls in the formed water droplet dropping direction 312. The water droplets that have slid down from the water droplet formation region 101 are accelerated in the acceleration region 103 having a larger inclination angle than that of the water droplet formation region, start rotating, and rotate as a substantially spherical water droplet by the centrifugal force of the rotation. While falling.

なお、水滴形成・滑落部１００の傾斜面１１９について、図８で表すように傾斜面１１９にＶ字型またはＵ字型の水滴誘導溝８０１を付け、さらに傾斜面１１９に撥水加工を施すようにしても好ましい。このようにすることで、水滴形成領域１０１において、吐出口５から吐出された大径の吐出水滴３０５とわずかに遅れて落下する小径の吐出水滴３０７が、水滴誘導溝８０１に誘導されて、ひとつの水滴にまとまりやすくなる。また、ひとつにまとまった水滴は滑らかにその自重で傾斜面１１９の水滴形成領域１０１から加速領域１０３方向に徐々に滑落をはじめ、加速領域１０３で加速された水滴が、その後、縁部１１５で傾斜面１１９から球状に近い形で離れて落下するようになる。なお、上記と同様に、水滴形成領域１０１から滑落してきた水滴は、水滴形成領域よりも傾斜角の大きい加速領域１０３で加速されるとともに、回転を始め、その回転の遠心力により略球状の水滴となって回転しながら落下する。 As for the inclined surface 119 of the water droplet forming / sliding portion 100, as shown in FIG. 8, a V-shaped or U-shaped water droplet guiding groove 801 is provided on the inclined surface 119, and the inclined surface 119 is subjected to water repellent processing. Even so, it is preferable. By doing in this way, in the water droplet formation region 101, the large-diameter discharge water droplet 305 discharged from the discharge port 5 and the small-diameter discharge water droplet 307 falling slightly behind are guided to the water droplet guide groove 801, and one It becomes easy to gather in the water droplets. Further, the water droplets gathered together gradually begin to slide from the water droplet formation region 101 of the inclined surface 119 toward the acceleration region 103 with its own weight, and the water droplets accelerated in the acceleration region 103 are then inclined at the edge 115. It comes to fall away from the surface 119 in a nearly spherical shape. In the same manner as described above, the water droplet that has slid down from the water droplet formation region 101 is accelerated in the acceleration region 103 having a larger inclination angle than the water droplet formation region, starts rotating, and is substantially spherical due to the centrifugal force of the rotation. And fall while rotating.

上記実施形態では、水滴形成領域１０１と、水滴形成領域１０１の傾斜角よりも大きな傾斜角を有する加速領域１０３を設ける構造としているが、少なくとも水滴形成領域１０３の傾斜面１１９だけがあれば良く、加速領域１０３と縁部１１５が無い形態でも良い。 In the above embodiment, the water droplet formation region 101 and the acceleration region 103 having an inclination angle larger than the inclination angle of the water droplet formation region 101 are provided, but it is sufficient that at least the inclined surface 119 of the water droplet formation region 103 is provided. The form without the acceleration area | region 103 and the edge part 115 may be sufficient.

上記実施形態では、従来の方法では成し得なかった大きな水滴径（例えば、直径１０ｍｍ以上の水滴）を安定的に形成することができる。つまり図２と図３で示すように、吐出口５から吐出された水を、一旦傾斜面１１９の水滴形成領域１０１で受けることにより、吐出口５から吐出された水でできる水滴と吐出時に吐出口５で発生する引きちぎり現象による小径の吐出水滴３０７を１個の形成水滴３１５として吸収することができるとともに、傾斜面１１９の水滴形成領域１０１で１個の水滴に形成された形成水滴３１５は、その自重で徐々に傾斜面１１９の水滴形成領域１０１から加速領域１０３へと滑り落ち、その後、形成水滴３１５は傾斜面１１９の縁部１１５を離れほぼ球状の１個の形成水滴３１５として落下させることが可能となる。上記実施形態の構成により、水滴形成装置１は、直径１０ｍｍ以上の水滴を形成することができる。勿論、１ｍｍから１０ｍｍ程度の直径の水滴を形成するにも好適である。 In the above embodiment, a large water droplet diameter (for example, a water droplet having a diameter of 10 mm or more) that cannot be achieved by the conventional method can be stably formed. That is, as shown in FIGS. 2 and 3, once the water discharged from the discharge port 5 is received by the water droplet formation region 101 of the inclined surface 119, the water droplets formed from the water discharged from the discharge port 5 and the water discharged during the discharge are discharged. A small-diameter discharge water droplet 307 caused by a tearing phenomenon generated at the outlet 5 can be absorbed as one formed water droplet 315, and the formed water droplet 315 formed in one water droplet in the water droplet formation region 101 of the inclined surface 119 is By its own weight, the inclined surface 119 gradually slides down from the water droplet formation region 101 to the acceleration region 103, and then the formed water droplet 315 leaves the edge 115 of the inclined surface 119 and drops as a substantially spherical formed water droplet 315. It becomes possible. With the configuration of the above-described embodiment, the water droplet forming apparatus 1 can form water droplets having a diameter of 10 mm or more. Of course, it is also suitable for forming water droplets having a diameter of about 1 mm to 10 mm.

また、図１で示すように吐出口５から吐出する水量をポンプ２１あるいはバルブ１５で調節することで、図２と図３で示す傾斜面１１９の水滴形成領域１０１で１個の水滴に形成された形成水滴３１５の大きさを可変することができる。つまり、吐出口５から吐出する水量を調節することで任意の径を有した水滴を安定的に形成することが可能となる。 Further, as shown in FIG. 1, the amount of water discharged from the discharge port 5 is adjusted by the pump 21 or the valve 15 to form one water droplet in the water droplet formation region 101 of the inclined surface 119 shown in FIGS. The size of the formed water droplet 315 can be varied. In other words, it is possible to stably form water droplets having an arbitrary diameter by adjusting the amount of water discharged from the discharge port 5.

さらに、図１で示す吐出口５に対してポンプ２１が脈動させながら送水することで、吐出量を均一化することが可能となり、また、形成したい任意の大きな直径の水滴の体積量に合わせて吐出口５に送水する水量を調節することも可能となる。また、吐出口５に送水する水の脈動の圧力を確実に吐出口の水滴に伝えるために逆止弁１３を併用することで吐出口５の吐出量をさらに均一化させることが可能となる。 Further, by supplying water while pulsating the pump 21 to the discharge port 5 shown in FIG. 1, it becomes possible to make the discharge amount uniform, and to match the volume of water droplets of any large diameter to be formed. It is also possible to adjust the amount of water fed to the discharge port 5. Further, it is possible to make the discharge amount of the discharge port 5 more uniform by using the check valve 13 together in order to reliably transmit the pressure of the pulsation of the water supplied to the discharge port 5 to the water droplets of the discharge port.

このように、従来形成することが困難であった径の大きな水滴の再現が本装置で可能となり、自然界の状態に近い降雨を再現する降雨装置にとして、降雨影響に関する試験や研究用として利用することができる。 In this way, this device can reproduce water droplets with large diameters that were difficult to form in the past, and it can be used as a rain device that reproduces rainfall close to the state of nature, for testing and research related to rainfall effects. be able to.

さらに任意の形成水滴３１５の水滴径を形成して滑落させるには、傾斜面１１９に吐出する水量をポンプ２１で調整することと、図２で示すように傾斜面１１９の角度を調節する機能を付加すること、あるいはそれらを組み合わせることにより、装置設計の自由度を向上させることができる。 Furthermore, in order to form a water droplet diameter of an arbitrary formed water droplet 315 and slide it down, the amount of water discharged to the inclined surface 119 is adjusted by the pump 21, and the function of adjusting the angle of the inclined surface 119 as shown in FIG. By adding or combining them, the degree of freedom in device design can be improved.

次に、本発明の第２実施形態に係る水滴形成装置について説明する。なお、第２実施形態に係る水滴形成装置は、水滴形成・滑落部１００の縁部（以下、鋭角縁部９１０と言う）に特徴があり、その他の構成や形状については、第１実施形態に係る水滴形成装置１と同じであるので、同じ部分については、同一の符号を付し詳細な説明は省略する。 Next, a water droplet forming apparatus according to a second embodiment of the present invention will be described. The water droplet forming apparatus according to the second embodiment is characterized by the edge of the water droplet forming / sliding portion 100 (hereinafter, referred to as an acute angle edge portion 910), and other configurations and shapes are described in the first embodiment. Since it is the same as the water droplet forming apparatus 1 concerned, the same code | symbol is attached | subjected about the same part and detailed description is abbreviate | omitted.

図９および図１０を用いて、第２実施形態に係る鋭角縁部９１０を、前述の第１実施形態で説明した縁部１１５との比較で説明する。図９は第１実施形態に係る水滴形成装置１で説明した縁部１１５であり、水滴９０１の滑落方向の下側に丸まるように湾曲した形状となっている。なお、以下、第１実施形態に係る水滴形成装置１において、水滴の滑落方向の下側に丸まるように湾曲した縁部１１５を湾曲縁部９００と言うことがある。 The acute edge portion 910 according to the second embodiment will be described with reference to FIGS. 9 and 10 in comparison with the edge portion 115 described in the first embodiment. FIG. 9 shows the edge 115 described in the water droplet forming apparatus 1 according to the first embodiment, and has a curved shape so as to be rounded downward in the sliding direction of the water droplet 901. Hereinafter, in the water droplet forming apparatus 1 according to the first embodiment, the edge 115 that is curved so as to be rounded downward in the sliding direction of the water droplet may be referred to as a curved edge 900.

図９は、加速領域１０３で加速された水滴９０１が、湾曲縁部９００で傾斜面１１９から離れて落下するまでの状態を、時系列矢印Ａで示すように水滴離脱状態９００Ａから水滴離脱状態９００Ｂ、水滴離脱状態９００Ｃへと時系列順に表した説明図である。時系列順に説明すると、水滴離脱状態９００Ａで表すように、加速領域１０３で加速された水滴９０１は傾斜面１１９を滑落するときに得られた加速度により湾曲縁部９００で傾斜面１１９から引き剥がされ始める。この時、水滴９０１は水滴離脱状態９００Ｂで示すよう水の表面張力により変形して湾曲縁部９００との間に尾９０３が発生する。その後、水滴離脱状態９００Ｃで示すよう水滴９０１は傾斜面１１９を滑落するときに得られた加速度と自重により、終わりには傾斜面１１９から離れて落下するが、湾曲縁部９００の湾曲面が長かったり、湾曲縁部９００の表面状態が粗かったり、または水の粘度や湿度等の違いにより尾９０３が長く伸び、湾曲縁部９００との間に発生した尾９０３が水滴９０１からひきちぎられて小さな径の水滴９０５を形成して落下する場合がある。通常、ここで形成される水滴９０５は、小径の吐出水滴３０７（または、図６で説明した径の小さな水滴６０１−５）に比べて非常に小径のため、実質的にはなんら問題にならない。 FIG. 9 shows the state until the water droplet 901 accelerated in the acceleration region 103 falls off the inclined surface 119 at the curved edge 900, as indicated by the time-series arrow A, from the water droplet separation state 900A to the water droplet separation state 900B. It is explanatory drawing represented to the water droplet detachment state 900C in time series order. When described in chronological order, the water droplet 901 accelerated in the acceleration region 103 is peeled off from the inclined surface 119 by the curved edge 900 by the acceleration obtained when sliding down the inclined surface 119, as represented by the water drop detached state 900A. start. At this time, the water droplet 901 is deformed by the surface tension of the water as shown by the water droplet detached state 900B, and a tail 903 is generated between the water droplet 901 and the curved edge portion 900. Thereafter, as shown by the water drop detachment state 900C, the water drop 901 falls away from the inclined surface 119 at the end due to the acceleration and self-weight obtained when sliding down the inclined surface 119, but the curved surface of the curved edge 900 is long. Or the surface of the curved edge 900 is rough, or the tail 903 is elongated due to a difference in the viscosity or humidity of water, and the tail 903 generated between the curved edge 900 is torn off from the water droplet 901. In some cases, a water droplet 905 having a small diameter is formed and dropped. Usually, the water droplets 905 formed here are much smaller in diameter than the small-diameter discharge water droplets 307 (or the water droplets 601-5 having a small diameter described with reference to FIG. 6), so there is substantially no problem.

図１０に示されるように、第２実施形態に係る水滴形成装置の鋭角縁部９１０は、水滴の滑落方向下側に丸まって湾曲した縁部の一部が滑落する水滴から離れる方向に折れ曲がるように形成されている所に特徴がある。具体的には、鋭角縁部９１０は、水滴９１１が離れる近傍において、湾曲部９１０ａに連続して形成される鋭角部９１０ｂが形成されている。換言すると、鋭角縁部９１０の一部が峰状（頂き状）に形成され、峰９１０ｃの角度は鋭角（例えば、３０°〜６０°）になっている。この鋭角縁部９１０は、図９で説明した、通常は問題にならない程度の非常に小径の水滴９０５をも確実に防止するものである。図１０は、鋭角縁部９１０において加速領域１０３で加速された水滴９１１が、鋭角縁部９１０で傾斜面１１９から離れて落下する滑落するまでの状態を、時系列矢印Ａで示すように水滴離脱状態９１０Ａから水滴離脱状態９１０Ｂ、水滴離脱状態９１０Ｃへと時系列順に表した説明図である。時系列順に説明すると、水滴離脱状態９１０Ａで表すように、加速領域１０３で加速された水滴９１１は傾斜面１１９を滑落するときに得られた加速度により鋭角縁部９１０で傾斜面１１９から引き剥がされ始める。その後、水滴９１１は水滴離脱状態９１０Ｂで示すよう水の表面張力により変形して鋭角縁部９１０との間に尾９１３が発生する。その後、水滴離脱状態９１０Ｃで示すよう水滴９１１は傾斜面１１９を滑落するときに得られた加速度と自重により終には傾斜面１１９から離れて落下する。しかしながら、鋭角縁部９１０では、湾曲面の先端を鋭角状にすることで、尾９１３が小さい（短い）段階で、鋭角縁部９１０から水滴９１１が離れる（つまり、峰９１０ｃから離れる）。これにより尾９１３の発生は、前述した湾曲縁部９００に比べて短くなり、鋭角縁部９１０との間に発生した尾９１３が水滴９１１からひきちぎられて小さな径の水滴９０５を形成して落下することを抑えることに有効である。 As shown in FIG. 10, the acute-angled edge 910 of the water droplet forming device according to the second embodiment is bent in a direction away from the water droplet that is curled and a part of the curved edge is curled downward in the sliding direction of the water droplet. It is characterized in that it is formed. Specifically, the acute angle edge portion 910 is formed with an acute angle portion 910b formed continuously with the curved portion 910a in the vicinity where the water droplet 911 is separated. In other words, a part of the acute-angled edge portion 910 is formed in a peak shape (a hook shape), and the angle of the peak 910c is an acute angle (for example, 30 ° to 60 °). The acute-angled edge portion 910 reliably prevents the water droplet 905 having a very small diameter, which is described in FIG. FIG. 10 shows the state until the water droplet 911 accelerated in the acceleration region 103 at the acute angle edge 910 falls off the inclined surface 119 at the acute angle edge 910 and is slid down as indicated by a time-series arrow A. It is explanatory drawing represented in order of the time series from the state 910A to the water drop detachment state 910B and the water drop detachment state 910C. When described in chronological order, as represented by the water drop separation state 910A, the water drop 911 accelerated in the acceleration region 103 is peeled off from the inclined surface 119 by the acute edge portion 910 by the acceleration obtained when sliding down the inclined surface 119. start. Thereafter, the water droplet 911 is deformed by the surface tension of the water as shown by the water droplet detached state 910B, and a tail 913 is generated between the water droplet 911 and the acute angle edge portion 910. Thereafter, as shown by a water drop detaching state 910C, the water drop 911 finally drops away from the inclined surface 119 due to the acceleration and its own weight obtained when sliding down the inclined surface 119. However, in the acute angle edge portion 910, the water droplet 911 is separated from the acute angle edge portion 910 (ie, away from the peak 910c) when the tail 913 is small (short) by making the tip of the curved surface acute. As a result, the generation of the tail 913 is shorter than the curved edge 900 described above, and the tail 913 generated between the sharp edge 910 is torn off from the water droplet 911 to form a water droplet 905 having a small diameter and falling. It is effective in suppressing the operation.

１水滴形成装置
３金具
５吐出口
７チューブ
９連通管
１１送水管
１３逆止弁
１５バルブ
１７流量計
１９電磁弁
２１ポンプ
２３送水管
２５水槽
２７コントロールユニット
１００水滴形成・滑落部
１０１水滴形成領域
１０３加速領域
１０５取付台
１０７前後角度調整モーター
１０９ボールベアリング
１１１支柱
１１３左右角度調整モーター
１１５縁部
１１９傾斜面
３００Ａ〜Ｇ水滴形成状態
３０３−１〜４吐出水状態
３０５大径の吐出水滴
３０７小径の吐出水滴
３０９吐出水落下方向
３１１形成水滴滑落方向
３１２形成水滴落下方向
３１５形成水滴
４００降雨針４０１による水滴形成状態
４０１降雨針
４０１−１〜４吐出水状態
５００傘付降雨針５０１による水滴形成状態
５０１傘付降雨針
５０１−１〜４吐出水状態
６００ノズル６０１による水滴形成状態
６０１ノズル１
６０１−１〜４吐出水状態
６０１−５小さな径の水滴
７００ノズル６０１による水滴形成状態
７０１−１〜４吐出水状態
８０１水滴誘導溝
９００湾曲縁部
９００Ａ〜Ｃ水滴離脱状態
９０１、９１１水滴
９０３、９１３尾
９０５小さな径の水滴
９１０鋭角縁部
９１０ａ〜ｃ水滴離脱状態DESCRIPTION OF SYMBOLS 1 Water drop formation apparatus 3 Metal fitting 5 Discharge port 7 Tube 9 Communication pipe 11 Water supply pipe 13 Check valve 15 Valve 17 Flow meter 19 Electromagnetic valve 21 Pump 23 Water supply pipe 25 Water tank 27 Control unit 100 Water drop formation and sliding part 101 Water drop formation area 103 Acceleration region 105 Mounting base 107 Front / rear angle adjustment motor 109 Ball bearing 111 Post 113 Left / right angle adjustment motor 115 Edge 119 Inclined surface 300A-G Water droplet formation state 303-1-4 Discharge water state 305 Large diameter discharge water droplet 307 Small diameter discharge Water Drop 309 Discharged Water Falling Direction 311 Formed Water Drop Sliding Direction 312 Formed Water Drop Falling Direction 315 Formed Water Drop 400 Water Drop Forming State 401 by Raining Needle 401 Raining Needle 401-1-4 Discharged Water State 500 Water Drop Forming State 501 by Umbrella Raining Needle 501 Umbrella Attached rain needle 501-1-4 Discharge water state 6 0 water droplets by the nozzle 601 forming state 601 nozzles 1
601-1-4 Discharged water state 601-5 Small-diameter water droplet 700 Water droplet formation state by nozzle 601 701-4-Discharged water state 801 Water droplet guiding groove 900 Curved edge 900A-C Water droplet separation state 901, 911 Water droplet 903, 913 tail 905 small diameter water droplet 910 acute angle edge portion 910a-c water droplet detachment state

Claims

A discharge port for discharging water, and a slide base having an inclined surface arranged vertically below the discharge port, receiving water discharged from the discharge port by the inclined surface into water droplets, and further supplying the water droplets A water droplet forming apparatus, wherein the water droplet forming apparatus guides downward along the inclined surface and drops from a lower edge of the inclined surface.

The inclined surface includes a water droplet forming region that receives water from the discharge port, and an acceleration region that is formed below the water droplet forming region and has a larger inclination angle than the water droplet forming region.
The water droplet forming apparatus according to claim 1.

An angle control device that changes the angle of the inclined surface is provided,
The water droplet forming apparatus according to claim 1.

The lower edge of the inclined surface is curved,
The water droplet forming apparatus according to any one of claims 1 to 3.

The inclined surface is characterized in that a groove for guiding the water droplet is formed along the inclined direction.
The water droplet forming apparatus according to any one of claims 1 to 4.

It is equipped with a pump for feeding water while pulsating to the discharge port,
The water droplet forming apparatus according to any one of claims 1 to 5.

A check valve is provided between the discharge port and the pump, and the pulsation pressure of water to be supplied is transmitted to the water droplets of the discharge port.
The water droplet forming apparatus according to claim 6.

The middle of the edge is bent in a direction away from the water drops,
The water droplet forming apparatus according to any one of claims 1 to 7.

The bending angle of the edge is an acute angle,
The water droplet forming apparatus according to claim 8.