JP3363866B2 - Water tank filtration device - Google Patents
Water tank filtration deviceInfo
- Publication number
- JP3363866B2 JP3363866B2 JP2000075936A JP2000075936A JP3363866B2 JP 3363866 B2 JP3363866 B2 JP 3363866B2 JP 2000075936 A JP2000075936 A JP 2000075936A JP 2000075936 A JP2000075936 A JP 2000075936A JP 3363866 B2 JP3363866 B2 JP 3363866B2
- Authority
- JP
- Japan
- Prior art keywords
- discharge pipe
- water
- filtration device
- air
- filter medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Filtration Of Liquid (AREA)
- Farming Of Fish And Shellfish (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、例えば金魚や熱
帯魚等の水棲生物の鑑賞飼育用水槽の水底部にセット
し、エアーポンプより供給される空気を気泡として放出
する際のエアーリフト効果を利用して、水を吸引濾過す
る水槽濾過装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention utilizes the air-lift effect when the air supplied from an air pump is discharged as air bubbles when it is set at the bottom of a tank for appreciating and breeding aquatic organisms such as goldfish and tropical fish. In addition, the present invention relates to an aquarium filtration device that suction-filters water.
【０００２】[0002]
【従来技術とその課題】一般に、この種の水槽濾過装置
は、濾材を装填した濾過ケースに直立状の排出パイプを
設け、エアーポンプより供給される空気を気泡として内
部に放出し、この気泡が排出パイプを通って上方へ排出
される際のエアーリフト効果により、当該排出パイプ内
に上昇水流を発生させ、この上昇水流の発生に伴う濾過
ケース内の負圧によって水槽内の汚れた水を吸引し、濾
材を通して浄化して該排出パイプから吐出するようにな
っている。また、上記気泡の発生手段としては、硬質合
成樹脂発泡体からなる中空軸状で、内部に供給される空
気を多孔組織中の通過によって細かい気泡として外部へ
放出するエアーストーンが多用されている。2. Description of the Related Art Generally, in this type of aquarium filtration apparatus, an upright discharge pipe is provided in a filtration case loaded with a filter medium, and air supplied from an air pump is discharged as bubbles to the inside thereof. Due to the air lift effect when discharged upward through the discharge pipe, a rising water flow is generated in the discharge pipe, and the negative pressure in the filtration case accompanying the generation of this rising water flow sucks the dirty water in the water tank. Then, it is purified through a filter medium and discharged from the discharge pipe. Further, as a means for generating the bubbles, an air stone which is a hollow shaft made of a hard synthetic resin foam and which discharges air supplied inside into fine bubbles by passing through a porous tissue to the outside is often used.
【０００３】そして、従来の水槽濾過装置においては、
前記のエアーリフト効果を高めて吸水力を増大させるた
めに、排水パイプを上方へ長く突出させ、この排水パイ
プの直下のケース内底部に前記エアーストーンを配置す
るのが普通である（例えば特公平６−７５４５７号公
報、特開平１０−７５６８５号公報等）。In the conventional aquarium filtration device,
In order to enhance the air lift effect and increase the water absorption capacity, it is common to project a drainage pipe upwards and to arrange the airstone at the bottom of the case directly below the drainage pipe. 6-75457, JP-A-10-75685, etc.).
【０００４】しかしながら、上記のように排水パイプを
長くした濾過装置では、水槽内に設置した状態で見栄え
が悪い上、排水パイプを設ける部材（一般に上部ケー
ス）の材料及び成形コストが高く付くと共に、嵩張るた
めに製品の輸送及び保管時にもスペースをとってコスト
高になるという問題があった。However, the above-described filtering device having a long drainage pipe has a bad appearance when installed in a water tank, and the material and molding cost of a member (generally an upper case) for providing the drainage pipe are high. Since it is bulky, there is a problem that space is taken up during transportation and storage of the product, resulting in high cost.
【０００５】この発明は、上述の事情に鑑みて、気泡を
放出する際のエアーリフト効果によって水を吸引濾過す
る水槽濾過装置として、排水パイプを短くしても充分な
エアーリフト効果を確保でき、もって大きな吸水力によ
る優れた濾過能力を備え、水槽内に外観体裁よく設置で
き、且つ製作、輸送、保管等のコストを低減できるもの
を提供することを目的としている。In view of the above-mentioned circumstances, the present invention can secure a sufficient air lift effect even if the drainage pipe is shortened as a water tank filtration device that suction-filters water by the air lift effect when air bubbles are discharged. It is therefore an object of the present invention to provide an item having an excellent filtering ability due to a large water absorption capability, which can be installed in a water tank with a good appearance, and which can reduce the cost of production, transportation, storage and the like.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、請求項１の発明に係る水槽濾過装置は、濾材を装填
した濾過ケースに、直立状の排出パイプと吸水口及び気
泡発生手段が設けられ、気泡発生手段にて発生させた気
泡の上昇に伴って排出パイプ内に生じる上昇水流によ
り、前記吸水口から水を吸引して前記濾材に通して排出
パイプから上方へ吐出する水槽濾過装置において、前記
気泡発生手段が、内側に導入される空気を細かい気泡と
して外側へ放出する、多孔質で上端が閉塞した中空軸状
のエアーストーンからなり、前記排水パイプの上端部が
縮径され、この排出パイプ内に同心状に垂直配置した前
記エアーストーンの上端が当該排出パイプの上端近傍に
位置していることを特徴としている。In order to achieve the above object, in the aquarium filtration device according to the invention of claim 1, the upright discharge pipe, the water suction port and the bubble generating means are provided in the filtration case loaded with the filter medium. An aquarium filtration device which is provided and sucks water from the water intake port through the rising water flow generated in the discharge pipe due to the rise of the bubbles generated by the bubble generation means, passes the water through the filter medium, and discharges upward from the discharge pipe. In the above, the bubble generating means, which discharges air introduced into the inside as fine bubbles to the outside, is made of a hollow shaft-shaped air stone whose upper end is porous and is closed, and the upper end of the drainage pipe is reduced in diameter. It is characterized in that the upper end of the air stone concentrically vertically arranged in the discharge pipe is located near the upper end of the discharge pipe.
【０００７】このような水槽濾過装置では、エアースト
ーンから気泡が放出されると、排出パイプ内にエアーリ
フト効果による上昇水流を生じるが、エアーストーンの
上端が排出パイプの上端近傍に位置して、且つ該排出パ
イプの上端部が縮径し、該排出パイプの出口付近で上昇
水流の流路が狭く絞られた形になるから、ベンチュリー
作用によって該上昇水流が急激に流速を速めて排出パイ
プより外部へ吐出され、この水流に乗って気泡の上昇速
度が速まり、濾過ケース内への被処理水の吸引力が増大
することに加え、流速の速い上昇水流の連続した吐出に
より、排出パイプ出口の外側における吐出水流の周り
に、吐出水流側で流れが上向きになる継続的な回転水流
を生じ、この回転水流による誘引作用で排出パイプ出口
に吸引力が働くことになる。従って、排出パイプが短く
ても大きなエアーリフト効果が得られ、高い吸引濾過効
率を達成できる。In such an aquarium filter device, when air bubbles are discharged from the air stone, a rising water flow due to the air lift effect is generated in the discharge pipe, but the upper end of the air stone is located near the upper end of the discharge pipe. Moreover, since the upper end of the discharge pipe is reduced in diameter and the flow path of the rising water flow is narrowed in the vicinity of the outlet of the discharge pipe, the rising water flow rapidly accelerates the flow velocity by the Venturi action, It is discharged to the outside, the rising speed of bubbles rises along with this water flow, the suction force of the water to be treated into the filtration case increases, and the discharge pipe outlet is discharged by the continuous discharge of the rising water flow with a high flow velocity. A continuous rotating water flow is generated around the discharge water flow on the outside of the pipe, with the flow upward on the discharge water flow side, and suction force is exerted at the outlet of the discharge pipe by the attracting action of this rotating water flow. It made. Therefore, even if the discharge pipe is short, a large air lift effect can be obtained, and high suction filtration efficiency can be achieved.
【０００８】しかして、このような水槽濾過装置におい
て、請求項２の発明のように、エアーストーンの上端が
排出パイプの上端よりも１〜３ｍｍ低い位置にある構成
とすれば、特に前記のベンチュリー作用及び回転水流に
よる吸引力の増大が顕著になる。また、請求項３の発明
のように、排水パイプを、下部から上部へ緩く縮径し、
更に上端部で急激に縮径した形状を有するものとすれ
ば、ベンチュリー作用による流速の増大がより顕著にな
り、吸引力がより大きくなる。In such an aquarium filter device, however, if the upper end of the air stone is located at a position 1 to 3 mm lower than the upper end of the discharge pipe, as in the invention of claim 2, the venturi in particular is used. The action and the increase in suction force due to the rotating water flow become remarkable. Further, as in the invention of claim 3, the drainage pipe is reduced in diameter from the lower part to the upper part,
Further, if the shape has a shape in which the diameter is sharply reduced at the upper end, the increase in the flow velocity due to the Venturi effect becomes more remarkable, and the suction force becomes larger.
【０００９】[0009]
【発明の実施の形態】以下、この発明の一実施例に係る
水槽濾過装置について、図面を参照して具体的に説明す
る。図１〜図５において、（１）は上部カバー、（２）
は底トレイ、（３）は仕切り部材、（４Ａ）は不織布等
の多孔性マットからなる上部濾材層、（４Ｂ）は砂利等
の粒状物充填層からなる下部濾材層、（５）はエアース
トーン、（６）はスノコ板、（７）は送気チューブ接続
用のエルボ部材である。なお、上部カバー（１）、底ト
レイ（２）、仕切り部材（３）及びエルボ部材（７）
は、いずれも硬質透明合成樹脂の一体成形物からなる。BEST MODE FOR CARRYING OUT THE INVENTION An aquarium filtration device according to an embodiment of the present invention will be specifically described below with reference to the drawings. 1 to 5, (1) is an upper cover, (2)
Is a bottom tray, (3) is a partition member, (4A) is an upper filter medium layer made of a porous mat such as nonwoven fabric, (4B) is a lower filter medium layer made of a granular material-filled layer such as gravel, and (5) is an air stone. , (6) is a drainboard, and (7) is an elbow member for connecting an air supply tube. The top cover (1), bottom tray (2), partition member (3) and elbow member (7).
Are made of an integrally molded hard transparent synthetic resin.
【００１０】上部カバー（１）は、上壁部（１ａ）と、
その周縁より垂下する周壁部（１ｂ）とで、平面視略正
方形で下方に開いた箱形をなしている。この上壁部（１
ａ）は、中央に円形の開口部（１１）を有すると共に、
裏面側に該開口部（１１）を中心として放射状に配置し
た複数条の隔壁（１２）…が突設されている。また周壁
部（１ｂ）は、四周の各側面に左右一対の上下方向に沿
う畝状の外向き膨出部（１３）（１３）を有し、一方の
対向する両側面の各中央位置には、下縁から上方へ向か
う一対の細い切欠部（１４）（１４）の間で構成した係
止片（１５）を有し、この係止片（１５）の外面側に略
半円状に膨出した掛止突起（１５ａ）が設けられ、他方
の対向する両側面の各中央位置には、下縁側に半円形切
欠部（１６）を有すると共に、この半円形切欠部（１
６）のやや上位から上壁部（１ａ）の周縁部に達する複
数本（図では４本）のスリット状の上部吸引口（１７）
…を備えている。The upper cover (1) includes an upper wall portion (1a) and
The peripheral wall portion (1b) that hangs down from the periphery forms a box shape that is substantially square in plan view and opens downward. This upper wall (1
a) has a circular opening (11) in the center and
On the back surface side, a plurality of ribs (12) ... Arranged radially around the opening (11) are projected. Further, the peripheral wall portion (1b) has a pair of left and right ridge-shaped outward bulging portions (13) and (13) extending in the vertical direction on each side surface of the four circumferences, and at each central position on both opposing side surfaces. , Has a locking piece (15) formed between a pair of thin notches (14) (14) extending upward from the lower edge, and the outer surface of the locking piece (15) expands in a substantially semicircular shape. A protruding hooking protrusion (15a) is provided, and a semicircular notch (16) is provided on the lower edge side at each central position of the other opposing side surfaces, and the semicircular notch (1)
6) A plurality of (4 in the figure) slit-shaped upper suction ports (17) reaching the peripheral portion of the upper wall portion (1a) from slightly above
It has ...
【００１１】底トレイ（２）は、通水孔のない底壁部
（２ａ）と、その周縁より立ち上がる周壁部（２ｂ）と
で、平面視略正方形で上方に開いた箱形をなし、底壁部
（２ａ）の周縁が周壁部（２ｂ）の下端より外側へ若干
突出してカバー受け部（２ｃ）を構成している。そし
て、底壁部（２ａ）の内面側には、中央位置で直立した
筒軸状の空気吐出口（２１）と、この空気吐出管（２
１）の下端部から周壁部（２ｂ）に至る水平管状の通気
路（２２）と、この通気路（２２）位置を除いて上部カ
バー（１）の隔壁（１７）…に対応した放射状に配置す
る複数本（図では７本）の条片（２３）…とが一体形勢
されている。また周壁部（２ｂ）の四周の内、一方の対
向する両側面の各中央部が凹面部（２４）となり、この
凹面部（２４）の上縁に上下に透通するスリット孔（２
５ａ）を備えた係止枠（２５）が設けてある。The bottom tray (2) has a bottom wall portion (2a) having no water passage hole and a peripheral wall portion (2b) rising from the peripheral edge of the bottom tray (2), which is substantially square in plan view and has a box shape opened upward. The peripheral edge of the wall portion (2a) slightly projects outward from the lower end of the peripheral wall portion (2b) to form a cover receiving portion (2c). Then, on the inner surface side of the bottom wall portion (2a), a cylindrical shaft-shaped air discharge port (21) which is upright at the central position and this air discharge pipe (2
A horizontal tubular ventilation passage (22) extending from the lower end of 1) to the peripheral wall portion (2b) and a radial arrangement corresponding to the partition walls (17) of the upper cover (1) except the position of the ventilation passage (22). A plurality of (7 in the figure) strips (23) ... are integrally formed. In addition, in the four circumferences of the peripheral wall portion (2b), each central portion of both opposing side surfaces becomes a concave surface portion (24), and a slit hole (2) that vertically penetrates the upper edge of the concave surface portion (24).
A locking frame (25) with 5a) is provided.
【００１２】仕切り部材（３）は、多数の長孔状の通水
孔（３１）…を有する水平仕切り板（３ａ）と、その周
縁より立ち上がる周壁部（３ｂ）とで、平面視略正方形
の篩枡形をなし、水平仕切り板（３ａ）の中央に直立状
の排出パイプ（３０）が一体形成されると共に、該排出
パイプ（３０）の根元から周壁部（３ｂ）に至る半径方
向に沿って、該水平仕切り板（３ａ）の底面側が断面半
円形に凹んだ通気路外嵌部（３５）を有している。この
周壁部（３ｂ）の四周の内、一方の対向する両側面の各
中央部が底トレイ（２）の凹面部（２４）に対応した凹
面部（３２）をなし、他方の対向する両側面の上縁には
内向きに突出した左右一対の押さえ片（３３）（３３）
を有し、周壁部（３ｂ）の四周の各内面側中央には受け
片（３４）が突設されている。The partition member (3) comprises a horizontal partition plate (3a) having a large number of long hole-shaped water passage holes (31) ... And a peripheral wall portion (3b) rising from the peripheral edge of the horizontal partition plate (3b). An upright discharge pipe (30) is integrally formed in the center of the horizontal partition plate (3a) in the shape of a sieve box, and along the radial direction from the root of the discharge pipe (30) to the peripheral wall portion (3b). The bottom surface side of the horizontal partition plate (3a) has a ventilation passage outer fitting portion (35) which is recessed in a semicircular cross section. Of the four circumferences of the peripheral wall portion (3b), the central portions of the opposite side surfaces on one side form a concave surface portion (32) corresponding to the concave surface portion (24) of the bottom tray (2), and the opposite side surfaces on the other side. A pair of left and right pressing pieces (33) (33) protruding inwardly on the upper edge of the
And a receiving piece (34) is provided at the center of each of the four inner surfaces of the peripheral wall portion (3b).
【００１３】しかして、排出パイプ（３０）は、下部か
ら上部へ漸次縮径して、更に上端部（３０ａ）で急激に
縮径した形状を有している。また、エアーストーン
（５）は、硬質合成樹脂発泡体等よりなる多孔質中空軸
状で、上端が閉塞しており、底トレイ（２）の空気吐出
管（２１）に下部を挿嵌させ、この底トレイ（２）に仕
切り部材（３）を内嵌させたとき、図２及び図３に示す
ように、排出パイプ（３０）内に同心状に垂直配置し
て、且つ上端（５ａ）が排出パイプ（３０）の上端より
僅かに低い位置になるように寸法設定されている。However, the discharge pipe (30) has a shape in which the diameter is gradually reduced from the lower portion to the upper portion, and the diameter is further rapidly reduced at the upper end portion (30a). Further, the air stone (5) is a porous hollow shaft made of a hard synthetic resin foam or the like, the upper end is closed, and the lower part is inserted into the air discharge pipe (21) of the bottom tray (2), When the partition member (3) is fitted in the bottom tray (2), as shown in FIG. 2 and FIG. 3, the partition member (3) is vertically arranged concentrically in the discharge pipe (30) and the upper end (5a) is It is dimensioned to be slightly lower than the upper end of the discharge pipe (30).
【００１４】なお、スノコ板（６）は、略正方形の平板
状をなす半硬質合成樹脂成形物からなり、中央の円形穴
（６１）と、多数の長孔状の通水孔（６２）…と、片面
側の周縁部に設けられて仕切り部材（３）の押さえ片
（３３）が嵌合する凹部（６３）…を有している。更に
上部濾材層（４Ａ）を構成する多孔性マットにも、中央
に円形穴（４１）が形成されている。The snow plate (6) is made of a semi-hard synthetic resin molded product having a substantially square flat plate shape, and has a circular hole (61) in the center and a large number of elongated water holes (62). And a recessed portion (63) provided on the peripheral portion on the one surface side to which the pressing piece (33) of the partition member (3) fits. Further, a circular hole (41) is formed in the center of the porous mat that constitutes the upper filter medium layer (4A).
【００１５】しかして、水槽濾過装置の組み立ては、既
述のように底トレイ（２）の空気吐出管（２１）にエア
ーストーン（５）を垂直状態に挿嵌すると共に、エルボ
部材（７）の一端側を通気路（２２）の開口部に挿嵌さ
せる一方、仕切り部材（３）の水平仕切り板（３ａ）上
に下部濾材層（４Ｂ）を構成する砂利等の粒状物を載
せ、その上にスノコ板（６）を周縁が押さえ片（３３）
…と受け片（３４）との間に挟まれるように配置し、こ
の仕切り部材（３）を通気路外嵌部（３５）が通気路
（２２）に被さるように底トレイ（２）に内嵌させ、そ
の上に更に上部濾材層（４Ａ）の多孔性マットを載せた
上で、底トレイ（２）に上部カバー（１）を外嵌して濾
過ケース（１０）を構成する。このとき、上部カバー
（１）の両側の各係止片（１５）を底トレイ（２）のス
リット孔（２５ａ）に挿嵌させ、その係止突起（１５
ａ）を係止枠（２５）下縁に係合させると共に、半円形
切欠部（１６）をエルボ部材（７）の挿嵌部に合わせ
る。なお、各構成部材は、このような組み立てを行える
ように寸法設定されている。In the assembly of the aquarium filtration device, the air stone (5) is vertically inserted into the air discharge pipe (21) of the bottom tray (2) and the elbow member (7) is assembled as described above. While one end side of the is inserted into the opening of the ventilation path (22), the granular material such as gravel that constitutes the lower filter medium layer (4B) is placed on the horizontal partition plate (3a) of the partition member (3), The peripheral edge of the drainboard plate (6) holds the piece (33) on top.
... and the receiving piece (34), and the partition member (3) is placed inside the bottom tray (2) so that the air passage outer fitting portion (35) covers the air passage (22). Then, the porous mat of the upper filter medium layer (4A) is further placed thereon, and then the upper cover (1) is externally fitted to the bottom tray (2) to form the filtration case (10). At this time, the locking pieces (15) on both sides of the upper cover (1) are fitted into the slit holes (25a) of the bottom tray (2), and the locking projections (15) are inserted.
The a) is engaged with the lower edge of the locking frame (25), and the semicircular cutout (16) is aligned with the insertion portion of the elbow member (7). It should be noted that each component is dimensioned so that such an assembly can be performed.
【００１６】かくして組み立てられた水槽濾過装置は、
図２及び図３に示すように、仕切り部材（３）の排出パ
イプ（３０）が縮径した上端部（３０ａ）のみを上部カ
バー（１）の開口部（１１）から外側へ突出してお
り、、仕切り板（３ａ）によって底トレイ（２）の内部
が上側の濾材充填室（２０ａ）と下側の下流室（２０
ｂ）とに区画されており、濾材充填室（２０ａ）にはス
ノコ板（６）を介して積層した上部濾材層（４Ａ）と下
部濾材層（４Ｂ）とからなる２層構造の濾材層（４）が
排出パイプ（３０）の周囲を取り巻くように配置し、下
流室（２０ｂ）は排出パイプ（３０）内に連通してい
る。また、上部濾材層（４Ａ）の上面と上部カバー
（１）の上壁部（１ａ）との間には、上流室（１８）が
構成されている。The aquarium filtration device thus assembled is
As shown in FIGS. 2 and 3, only the upper end portion (30a) of the discharge pipe (30) of the partition member (3) whose diameter is reduced protrudes outward from the opening portion (11) of the upper cover (1). The inside of the bottom tray (2) is divided by the partition plate (3a) into the filter medium filling chamber (20a) on the upper side and the downstream chamber (20) on the lower side.
b) and a filter medium filling chamber (20a) having a two-layer structure comprising an upper filter medium layer (4A) and a lower filter medium layer (4B) laminated via a drainboard (6) ( 4) is arranged so as to surround the circumference of the discharge pipe (30), and the downstream chamber (20b) communicates with the inside of the discharge pipe (30). An upstream chamber (18) is formed between the upper surface of the upper filter medium layer (4A) and the upper wall portion (1a) of the upper cover (1).
【００１７】一方、上部カバー（１）と底トレイ（２）
の相互の周壁部（１ｂ）（２ｂ）間には、上部カバー
（１）の各外向き膨出部（１３）の内側部分で上下方向
に沿うダクト状の吸水路（８）を構成している。そし
て、各吸水路（８）は、下端で外部に開放すると共に、
上端で上流室（１８）に連通している。また、上部カバ
ー（１）に設けた上部吸水孔（１７）…は、その上部が
上流室（１８）に臨んでいる。また、上部カバー（１）
の上壁部（１ａ）の内面側に突設された隔壁（１２）…
は、上部濾材層（４Ａ）の多孔性マットを押さえて浮き
上がりを阻止すると共に、濾過ケース（１０）内の上部
に上流室（１８）の空間を確保するスペーサーとして機
能しているが、同時に上流室（１８）を複数の領域に区
画している。しかして、この上流室（１８）の区画され
た各領域には吸水路（８）の１本が連通している。ま
た、底トレイ（２）の底壁部（２ａ）に設けた条片（２
３）…は、仕切り部材（３）の受けをなすが、上部カバ
ー（１）側の隔壁（１２）…と同様に、濾過ケース（１
０）内の下部に下流室（２０ｂ）の空間を確保するスペ
ーサーとして機能し、且つ該下流室（２０ｂ）を複数の
領域に区画している。On the other hand, the top cover (1) and the bottom tray (2)
Between the peripheral wall portions (1b) and (2b) of each other, a duct-shaped water absorption path (8) is formed along the up-down direction at the inner side of each outwardly bulging portion (13) of the upper cover (1). There is. And each water intake channel (8) is opened to the outside at the lower end,
The upper end communicates with the upstream chamber (18). The upper part of the upper water absorption holes (17) provided in the upper cover (1) faces the upstream chamber (18). Also, the top cover (1)
Partition wall (12) protrudingly provided on the inner surface side of the upper wall portion (1a) ...
Acts as a spacer that holds down the porous mat of the upper filter medium layer (4A) to prevent it from rising and secures a space for the upstream chamber (18) in the upper portion of the filtration case (10). The chamber (18) is divided into a plurality of areas. Then, one of the water absorption paths (8) communicates with each of the partitioned areas of the upstream chamber (18). In addition, the strip (2) provided on the bottom wall portion (2a) of the bottom tray (2).
3), which receive the partition member (3), are similar to the partition walls (12) on the side of the upper cover (1) ...
It functions as a spacer that secures a space for the downstream chamber (20b) in the lower part of 0), and divides the downstream chamber (20b) into a plurality of regions.
【００１８】このような構成の水槽濾過装置では、エル
ボ部材（７）にエアーポンプの送気チューブを接続し、
水棲生物の鑑賞飼育用水槽の水底部にセットして該エア
ーポンプを作動させると、通気路（２２）を通ってエア
ーストーン（５）内部に供給される空気が当該エアース
トーン（５）の表面から細かい気泡として外部へ放出さ
れ、これら気泡の上昇に伴うエアーリフト効果によって
排出パイプ（３０）の内側空間（１９）に上昇水流を生
じるため、濾過ケース（１０）内が負圧となる。これに
より、外部の水が吸水路（８）…及び上部吸水孔（１
７）…より上流室（１８）内に吸入され、上部濾材層
（４Ａ）及び下部濾材層（４Ｂ）を順次透過する過程で
浄化され、下流室（２０ｂ）から排出パイプ（３０）内
に入って上方外部へ吐出される。In the aquarium filtration apparatus having such a structure, the air supply tube of the air pump is connected to the elbow member (7),
Appreciating aquatic organisms When set on the bottom of a water tank for breeding and operating the air pump, the air supplied to the inside of the air stone (5) through the air passage (22) becomes the surface of the air stone (5). Are discharged to the outside as fine bubbles from the outside, and an ascending water flow is generated in the inner space (19) of the discharge pipe (30) due to the air lift effect accompanying the rise of these bubbles, so that the inside of the filtration case (10) becomes a negative pressure. As a result, the external water is absorbed by the water absorption path (8) and the upper water absorption hole (1
7) ... Is sucked into the upstream chamber (18), is purified in the process of sequentially passing through the upper filter medium layer (4A) and the lower filter medium layer (4B), and enters the discharge pipe (30) from the downstream chamber (20b). Is discharged to the outside.
【００１９】このとき、排出パイプ（３０）が下部から
上部へ漸次縮径しているから、上昇水流は該排出パイプ
（３０）内の上部に至るほど流速を速めてゆく。しかし
て、エアーストーン（５）の上端（５ａ）が排出パイプ
（３０）の上端近傍に位置して、且つ該排出パイプ（３
０）が上端部（３０ａ）で更に急激に縮径し、該排出パ
イプ（３０）の出口付近で上昇水流の流路が狭く絞られ
た形になっているから、ベンチュリー作用によって該上
昇水流が出口付近で更に急激に流速を速めて排出パイプ
（３０）より外部へ吐出され、この水流に乗って気泡の
上昇速度が速まり、濾過ケース（１０）内への被処理水
の吸引力が増大する。しかも、図６に示すように、流速
の速い上昇水流（矢印Ｕ）の連続した吐出により、排出
パイプ（１０）出口の外側における吐出水流（矢印Ｏ）
の周りに、吐出水流側で流れが上向きになる継続的な回
転水流（矢印Ｒ）を生じ、この回転水流による誘引作用
で排出パイプ（３０）出口に吸引力が働くことになる。At this time, since the discharge pipe (30) is gradually reduced in diameter from the lower part to the upper part, the rising water flow has a higher flow velocity toward the upper part in the discharge pipe (30). Therefore, the upper end (5a) of the air stone (5) is located near the upper end of the discharge pipe (30), and the discharge pipe (3) is
0) is further rapidly reduced in diameter at the upper end portion (30a), and the flow path of the rising water flow is narrowed near the outlet of the discharge pipe (30). The flow velocity is further rapidly increased near the outlet and is discharged from the discharge pipe (30) to the outside, and the rising speed of bubbles is accelerated along with this water flow, and the suction force of the water to be treated into the filtration case (10) is increased. To do. Moreover, as shown in FIG. 6, the discharge water flow (arrow O) outside the outlet of the discharge pipe (10) is generated by the continuous discharge of the rising water flow (arrow U) having a high flow velocity.
A continuous rotating water flow (arrow R) is generated around the discharge water flow side, and the suction force acts on the outlet of the discharge pipe (30) by the attracting action of this rotating water flow.
【００２０】従って、図示のように排出パイプ（３０）
が短くても、大きなエアーリフト効果が得られ、高い吸
引濾過効率及び浄化効率が達成される。一方、このよう
に排出パイプ（３０）の短い水槽濾過装置では、水槽底
部に設置した状態での外観体裁がよく、また部材製造時
の材料及び成形コストが低減される上、嵩張らないこと
から、製品の輸送や保管に際してスペースをとらず、そ
れだけ輸送及び保管コストも低減される。Therefore, as shown, the discharge pipe (30)
Even if is short, a large air lift effect can be obtained, and high suction filtration efficiency and purification efficiency can be achieved. On the other hand, in the aquarium filter device having the short discharge pipe (30) as described above, the appearance is good when installed at the bottom of the aquarium, and the material and the molding cost at the time of manufacturing the member are reduced, and it is not bulky. It does not take up space when transporting and storing products, and transport and storage costs are reduced accordingly.
【００２１】なお、エアーストーン（５）の上端（５
ａ）は、排出パイプ（３０）の上端近傍に位置すればよ
いが、多くの試作試験の結果から、特に排出パイプ（３
０）の上端よりも１〜３ｍｍ低い位置にあるときに最も
大きい吸引力が得られることが判明している。The upper end of the air stone (5) (5
Although a) may be located near the upper end of the discharge pipe (30), the results of many trial tests show that the discharge pipe (3)
It has been found that the greatest suction force is obtained when the position is 1 to 3 mm lower than the upper end of 0).
【００２２】上記実施例では、濾過ケース（１０）の側
面部のダクト状の吸水路（８）…と上部吸水孔（１７）
…とから吸入した被処理水を、多孔性マットからなる上
部濾材層４Ａと砂利等の粒状物充填層からなる下部濾材
層４Ｂに順次透過させて汚れの濾過除去を行うようにし
ているが、この発明の水槽濾過装置では、吸水口の数と
配置、濾材の種類、濾過ケース（１０）内での処理水の
経路、濾過ケース（１０）及び排出パイプ（３０）の構
成部材の形状と組み付け形態等について、該実施例以外
の様々な構成を採用できる。In the above embodiment, the duct-shaped water absorption paths (8) and the upper water absorption holes (17) on the side surface of the filtration case (10).
The water to be treated sucked in is sequentially permeated through the upper filter medium layer 4A made of a porous mat and the lower filter medium layer 4B made of a granular material-filled layer such as gravel to remove dirt by filtration. In the aquarium filtration device of the present invention, the number and arrangement of water inlets, the type of filter media, the route of treated water in the filtration case (10), the shape and assembly of the components of the filtration case (10) and the discharge pipe (30). Regarding the form and the like, various configurations other than the embodiment can be adopted.
【００２３】[0023]
【発明の効果】請求項１の発明によれば、例えば金魚や
熱帯魚等の水棲生物の鑑賞飼育用水槽の水底部にセット
し、エアーポンプより供給される空気を気泡として放出
する際のエアーリフト効果によって水を吸引濾過する水
槽濾過装置として、処理水及び気泡を排出する排水パイ
プを短くしても充分なエアーリフト効果を確保でき、も
って大きな吸水力による優れた濾過能力を備え、水槽内
に外観体裁よく設置でき、且つ製作、輸送、保管等のコ
ストを低減できるものが提供される。According to the first aspect of the present invention, for example, an air lift is set at the bottom of a water tank for appreciation and breeding of aquatic organisms such as goldfish and tropical fish, and air supplied from an air pump is discharged as bubbles. As a water tank filtration device that suction-filters water according to the effect, even if the drain pipe that discharges treated water and bubbles is shortened, a sufficient air lift effect can be secured, and it has an excellent filtration capacity due to its large water absorption capacity. It is provided that can be installed with a good appearance and can reduce the cost of manufacturing, transportation, storage, etc.
【００２４】請求項２及び請求項３の発明によれば、上
記の水槽濾過装置として、より吸水力に優れるものが提
供される。According to the second and third aspects of the present invention, as the above-mentioned aquarium filtration device, a device having a higher water absorption capability is provided.
【図１】この発明の一実施例に係る水槽濾過装置を示
し、（Ａ）図は平面図、（Ｂ）図は正面図、（Ｃ）図は
右側面図である。1A and 1B show a water tank filtration device according to an embodiment of the present invention, wherein FIG. 1A is a plan view, FIG. 1B is a front view, and FIG. 1C is a right side view.
【図２】図１（Ａ）図におけるII−II線断面図である。FIG. 2 is a sectional view taken along line II-II in FIG.
【図３】図１（Ａ）図におけるIII −III 線断面図であ
る。FIG. 3 is a sectional view taken along line III-III in FIG.
【図４】同水槽濾過装置の上部カバーと上部濾材層の多
孔性マットとスノコ板を示す分解斜視図である。FIG. 4 is an exploded perspective view showing an upper cover, a porous mat of an upper filter medium layer, and a drainboard of the water tank filtration device.
【図５】同水槽濾過装置の仕切り部材と底トレイを示す
分解斜視図である。FIG. 5 is an exploded perspective view showing a partition member and a bottom tray of the water tank filtration device.
【図６】同水槽濾過装置の排出パイプ近傍における処理
水及び気泡の挙動を示す模式断面図である。FIG. 6 is a schematic cross-sectional view showing the behavior of treated water and bubbles in the vicinity of the discharge pipe of the water tank filtration device.
４Ａ…上部濾材層 ４Ｂ…下部濾材層 ５…エアーストーン ５ａ…上端 ８…吸水路（吸水口） １０…濾過ケース １７…上部吸水孔（吸水口） １９…内部空間 ３０…排出パイプ ３０ａ…上端部 4A ... Upper filter medium layer 4B ... Lower filter medium layer 5 ... Air Stone 5a ... upper end 8 ... Water absorption path (water intake) 10 ... Filtration case 17 ... Upper water absorption hole (water absorption port) 19 ... Internal space 30 ... Discharge pipe 30a ... the upper end
Claims (3)
排出パイプと吸水口及び気泡発生手段が設けられ、気泡
発生手段にて発生させた気泡の上昇に伴って排出パイプ
内に生じる上昇水流により、前記吸水口から水を吸引し
て前記濾材に通して排出パイプから上方へ吐出する水槽
濾過装置において、 前記気泡発生手段が、内側に導入される空気を細かい気
泡として外側へ放出する、多孔質で上端が閉塞した中空
軸状のエアーストーンからなり、 前記排水パイプの上端部が縮径され、この排出パイプ内
に同心状に垂直配置した前記エアーストーンの上端が当
該排出パイプの上端近傍に位置していることを特徴とす
る水槽濾過装置。1. A filter case loaded with a filter medium is provided with an upright discharge pipe, a water suction port, and bubble generating means, and an ascending water flow generated in the discharge pipe as the bubbles generated by the bubble generating means rise. According to the aquarium filtration device in which water is sucked from the water intake port, passed through the filter medium and discharged upward from the discharge pipe, the bubble generating means discharges air introduced into the inside as fine bubbles to the outside. It consists of a hollow shaft-shaped air stone whose upper end is closed by quality, the upper end of the drain pipe is reduced in diameter, and the upper end of the air stone concentrically vertically arranged in the discharge pipe is near the upper end of the discharge pipe. An aquarium filtration device characterized by being located.
の上端よりも１〜３ｍｍ低い位置にある請求項１記載の
水槽濾過装置。2. The aquarium filtration device according to claim 1, wherein the upper end of the air stone is located 1 to 3 mm lower than the upper end of the discharge pipe.
縮径し、更に上端部で急激に縮径した形状を有する請求
項１又は２に記載の水槽濾過装置。3. The water tank filtration device according to claim 1, wherein the drainage pipe has a shape in which the diameter is gradually reduced from the lower portion to the upper portion, and further the diameter is sharply reduced at the upper end portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000075936A JP3363866B2 (en) | 2000-03-17 | 2000-03-17 | Water tank filtration device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000075936A JP3363866B2 (en) | 2000-03-17 | 2000-03-17 | Water tank filtration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001258422A JP2001258422A (en) | 2001-09-25 |
| JP3363866B2 true JP3363866B2 (en) | 2003-01-08 |
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ID=18593750
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|---|---|---|---|
| JP2000075936A Expired - Fee Related JP3363866B2 (en) | 2000-03-17 | 2000-03-17 | Water tank filtration device |
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2000
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|---|---|
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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| LAPS | Cancellation because of no payment of annual fees |