JP2011167167A - Internal filtration device - Google Patents

Internal filtration device Download PDF

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JP2011167167A
JP2011167167A JP2010036535A JP2010036535A JP2011167167A JP 2011167167 A JP2011167167 A JP 2011167167A JP 2010036535 A JP2010036535 A JP 2010036535A JP 2010036535 A JP2010036535 A JP 2010036535A JP 2011167167 A JP2011167167 A JP 2011167167A
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water
air
filtration
pipe
water absorption
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Souichi Ogawa
創市 小川
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Suisaku Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an internal filtration device to place a filtration body in an aquarium, suck water in the aquarium by pressurized air ejected from an air pump, and circulate the water by passing through the filter in the filtration body to clean the water, wherein an air stone is constantly maintained at the optimum position to improve the suction efficiency of water with the air pump. <P>SOLUTION: The filtration body F is provided with an engaging means E to block movement of an air pipe 8 connected to the air stone 9 to a prescribed position of the water sucking channel 10 in the filtration body F. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、金魚、熱帯魚、海水魚等の観賞魚の飼育用水槽内の水を、エアポンプからの加圧エアにより吸い上げて循環濾過するようにした、内部式濾過装置に関する。   The present invention relates to an internal filtration device in which water in an aquarium for breeding ornamental fish such as goldfish, tropical fish and saltwater fish is sucked up by pressurized air from an air pump and circulated and filtered.

一般に、水槽内で金魚、熱帯魚等の観賞魚を飼育、育成するために、水槽内の水を濾過して浄化する濾過装置として、その濾過本体を水槽内に設置し、エアポンプから吐出する加圧エアにより水槽内の水を、吸い上げて濾過本体内の濾材を通過させて循環させることにより浄化するようにした、内部式濾過装置は公知である（たとえば、特許第３９５４９２０号公報参照）。   In general, in order to breed and cultivate ornamental fish such as goldfish and tropical fish in the aquarium, as a filtration device that filters and purifies the water in the aquarium, the filtration body is installed in the aquarium and pressurized to be discharged from the air pump An internal filtration device is known in which water in a water tank is sucked up by air and purified by circulating it through a filter medium in a filter body (see, for example, Japanese Patent No. 3955920).

特許第３９５４９２０号公報Japanese Patent No. 3955920

ところで、このような内部式濾過装置は、水槽の外に設けたエアポンプにエアパイプを介して接続されるエアストンを、水槽内に浸漬される内部式濾過本体内に挿入し、エアポンプの駆動によりエアストンを通して濾過本体内に噴出される加圧エアにより、水槽内の未浄化の水を濾材を通過して吸い上げて循環することにより浄化するように構成されている。   By the way, in such an internal filtration device, an airstone connected to an air pump provided outside the water tank via an air pipe is inserted into an internal filtration main body immersed in the water tank, and the airstone is driven by driving the air pump. It is configured to purify the unpurified water in the water tank by sucking it through the filter medium and circulating it by pressurized air ejected into the filtration body.

ところで、かかる濾過装置の濾過能率を高めるには、水槽内の水面からエアストンまでの水の吸水通路を長く確保し、かつエアストンから噴出されるエアにより水槽内の水のみを常に能率よく吸い上げる（エアを吸い込まない）ようにすることが要求されるが、前記特許文献１のものでは、濾過本体内に挿入されるエアストンを濾過本体内の適正位置に常に係止するための対策がなされていないため、濾過本体内に挿入されるエアストンの位置を常に適正位置に維持させるのが難しく、前記要求を充足できないという問題があった。   By the way, in order to increase the filtration efficiency of such a filtration device, a long water absorption path from the water surface in the aquarium to the airstone is secured, and only the water in the aquarium is always efficiently sucked up by the air ejected from the airstone (air However, in the case of the above-mentioned Patent Document 1, no measures are taken to always lock the airstone inserted into the filtration body at an appropriate position in the filtration body. There is a problem that it is difficult to always maintain the position of the airstone inserted into the filtration main body at an appropriate position, and the above requirement cannot be satisfied.

本発明はかかる実情に鑑みてなされたもので、内部式濾過本体内に挿入されるエアストンが常に適正位置の保持されるようにして、エアポンプによる水の吸上能率を高めるようにした、新規な内部式濾過装置を提供することを目的とする。   The present invention has been made in view of such a situation, and the airstone inserted into the internal filtration main body is always kept in an appropriate position so that the water pumping efficiency of the air pump is improved. An object is to provide an internal filtration device.

前記目的達成のため、請求項１記載の発明は、水槽内に設置される濾過本体の吸水通路内に、先端にエアストンが接続されるエアパイプを挿入し、このエアパイプの外端に水槽の外に設けられるエアポンプを接続し、該エアポンプよりエアストンを通して前記吸水通路内に噴出する加圧エアにより、水槽内の水を、前記濾過本体内の濾材および吸込口を通して吸水通路内に吸い上げて水槽内に還流させるようにした内部式濾過装置において、
前記濾過本体には、エアストンに接続されるエアパイプが、吸水通路内の所定位置に移動しないように係止される係止手段が設けられることを特徴としている。 In order to achieve the object, the invention described in claim 1 is characterized in that an air pipe having an air stone connected to the tip is inserted into a water absorption passage of a filtration main body installed in the water tank, and the outside end of the air pipe is outside the water tank. Connected air pump is connected, and the air in the water tank is sucked up into the water absorption passage through the filter medium and the suction port in the filtration body by the pressurized air ejected from the air pump through the airstone into the water absorption passage and returned to the water tank. In the internal filtration device that is allowed to
The filtration main body is provided with a locking means for locking the air pipe connected to the air stone so as not to move to a predetermined position in the water absorption passage.

前記目的達成のため、請求項２記載の発明は、前記請求項１記載の発明において、前記係止手段は、前記濾過本体の上部に形成される差込孔に着脱可能に設けられるパイプ係止具よりなり、このパイプ係止具は、内面にパイプ挿通孔を有して円筒状に形成され、その周壁にすり割りを挟んで複数の弾性挟持片が一体に設けられ、これらの挟持片の内面に、エアパイプの外面に食い込む尖鋭突起が突設されていることを特徴としている。   In order to achieve the object, the invention according to claim 2 is the invention according to claim 1, wherein the locking means is detachably provided in an insertion hole formed in an upper portion of the filtration body. This pipe locking tool is formed in a cylindrical shape having a pipe insertion hole on the inner surface, and a plurality of elastic clamping pieces are provided integrally with a slit on the peripheral wall. A sharp protrusion that bites into the outer surface of the air pipe is projected on the inner surface.

請求項各項記載の発明によれば、濾過本体の吸水通路内に挿入されるエアストンを、吸水通路に対して常に適正位置に確実に保持して、外乱などによりエアストンの位置がずれることがないので、エアポンプによる水槽内の水の吸上能率を高めることができ、内部式濾過装置の濾過効率を向上することができる。   According to the invention described in each claim, the airstone inserted into the water absorption passage of the filtration main body is always securely held in an appropriate position with respect to the water absorption passage, and the position of the airstone does not shift due to disturbance or the like. Therefore, it is possible to increase the efficiency of water absorption in the water tank by the air pump, and it is possible to improve the filtration efficiency of the internal filter.

また、請求項２記載の発明によれば、濾過本体の上部にエアパイプのパイプ係止具を設けるだけで、他に濾過装置の構造を何ら変更しないで済み、廉価に提供することができる。   In addition, according to the invention described in claim 2, it is possible to provide a low-priced structure by simply providing a pipe locking tool for an air pipe at the upper part of the filtration main body, without changing any other structure of the filtration device.

内部式濾過装置を水槽に設置した場合の斜視図Perspective view when the internal filter is installed in the water tank 図１の２矢視の、内部式濾過装置の一部破断正面図1 is a partially broken front view of the internal filtration device, as viewed in the direction of arrow 2 in FIG. 図２の３−３線に沿う断面図Sectional view along line 3-3 in FIG. 図３の４矢視図4 arrow view of FIG. 図３の５矢視部の拡大図Enlarged view of the portion indicated by arrow 5 in FIG. 図３の６矢視部の拡大図Enlarged view of the portion indicated by arrow 6 in FIG. エアパイプ保持具の斜視図Air pipe holder perspective view

以下、本発明の実施の形態を添付図面に示した本発明の実施例に基づいて説明する。   DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on examples of the present invention shown in the accompanying drawings.

図１〜４に示すように、内部式濾過装置の濾過本体Ｆは、直方体に形成される水槽１の相互に直交する２つの壁面１ａ，１ｂによって構成される隅角部２に、複数の吸盤３により着脱可能に取付けられる。この濾過本体Ｆ内には、エアポンプＰｕの作動により水槽１内の水が吸い込まれ、その内部で濾過された後、浄化された水は水槽１内へと還流される。   As shown in FIGS. 1 to 4, the filtration main body F of the internal filtration device has a plurality of suction cups in a corner portion 2 constituted by two wall surfaces 1 a and 1 b that are orthogonal to each other of a water tank 1 formed in a rectangular parallelepiped. 3 is detachably attached. The water in the water tank 1 is sucked into the filtration main body F by the operation of the air pump Pu, and the purified water is refluxed into the water tank 1 after being filtered therein.

濾過本体Ｆは、２つ割りの三角筒状の濾過ケース５と、その濾過ケース５に着脱可能に装着される、三角筒状に巻かれた濾材６と、この濾材６内に設けた円筒状の吸水通路１０と、この吸水通路１０の上端に鉛直軸回りに首振り可能に接続される排水管７と、この排水管７を貫通して吸水通路１０内に挿入される可撓性の弾性ホースよりなるエアパイプ８とを備えており、このエアパイプ８の上端に水槽１の外に設けられるエアポンプＰｕが接続され、また、その下端には、吸水通路１０内に設けられるエアストン９が接続される。   The filtration main body F is divided into a triangular cylinder-shaped filtration case 5, a filter medium 6 wound in a triangle cylinder, which is detachably attached to the filter case 5, and a cylindrical shape provided in the filter medium 6. A water absorption passage 10, a drain pipe 7 connected to the upper end of the water absorption passage 10 so as to be able to swing around a vertical axis, and a flexible elastic inserted through the drain pipe 7 into the water absorption passage 10. And an air pump 8 provided outside the water tank 1 is connected to an upper end of the air pipe 8, and an airstone 9 provided in the water absorption passage 10 is connected to the lower end of the air pipe 8. .

図２，３，５，６に示すように濾過ケース５と、濾過エレメントユニット６との間には、密閉状の未浄化室Ｃｄが形成され、濾材６の内側の吸水通路１０内には密閉状の浄化室Ｃｃが形成されている。吸水通路１０の下端周面および下面には、吸水口２０が開口され、その吸水口２０は、未浄化室Ｃｄを濾材６を通して吸水通路１０内の浄化室Ｃｃに連通する。濾過ケース５の下部前面には、未浄化室Ｃｄに連通する第１の水取入口１２が開口され、さらに、それよりも下方に第２の水取入口１３が開口されている。濾過ケース５の下端には、粗な濾材１５を収容した補助濾過室１４が形成され、この補助濾過室１４は、前記第２の水取入口１３に連通されると共に吸水口２０を介して吸水通路１０内に連通する。   As shown in FIGS. 2, 3, 5, and 6, a sealed unpurified chamber Cd is formed between the filter case 5 and the filter element unit 6, and the water absorption passage 10 inside the filter medium 6 is sealed. A shaped purification chamber Cc is formed. A water suction port 20 is opened at the lower peripheral surface and the lower surface of the water absorption passage 10, and the water suction port 20 communicates the unpurified chamber Cd through the filter medium 6 to the purification chamber Cc in the water absorption passage 10. A first water intake 12 communicating with the unpurified chamber Cd is opened on the lower front surface of the filtration case 5, and a second water intake 13 is further opened below the first water intake 12. An auxiliary filtration chamber 14 containing a coarse filter medium 15 is formed at the lower end of the filtration case 5, and this auxiliary filtration chamber 14 communicates with the second water intake port 13 and absorbs water through the water intake port 20. It communicates in the passage 10.

ここで、エアポンプＰｕを運転すると、加圧エアは、エアパイプ８を通りエアストン９より吸水通路１９内に噴出し、吸水通路１０内に吸水力が発生する。これにより、水槽１内の未浄化水は、
(1) 図３，６矢印ａに示すように、第１の水取入口１２より未浄化室Ｃｄ内に吸入され、そこから濾材６を通って濾過された後、吸水口２０を通って吸水通路１０内に吸い上げられる第１の流れと、
(2) 図３，６矢印ｂに示すように、補助取水口１３より補助濾過室１４に入り、粗な濾材により濾過された後、吸水通路１０内に吸い上げられる第２の流れ、
とに分流される。そして、前記第１の流れと第２の流れは、吸水通路１０内で合流して、図３矢印ｃに示すように、該吸水通路１０内を上昇し、排水管７の排水口４０より、水槽１内に還流する。したがって、吸水通路１０内には、濾材６を通過して濾過された第１の流れの水と、粗な濾材１５を通過して濾過された第２の流れの水とが合流して吸水通路１０内を上昇し、排出管７を通って水槽１内に還流する。 Here, when the air pump Pu is operated, the pressurized air passes through the air pipe 8 and is ejected from the air stone 9 into the water absorption passage 19, and water absorption force is generated in the water absorption passage 10. Thereby, the unpurified water in the aquarium 1 is
(1) As shown by arrows a in FIGS. 3 and 6, the water is sucked into the unpurified chamber Cd from the first water intake 12, filtered through the filter medium 6, and then absorbed through the water inlet 20. A first flow sucked into the passage 10;
(2) As shown by arrows b in FIGS. 3 and 6, the second flow that enters the auxiliary filtration chamber 14 through the auxiliary intake port 13, is filtered by a coarse filter medium, and is sucked into the water absorption passage 10.
And is divided. Then, the first flow and the second flow are merged in the water absorption passage 10 and ascend in the water absorption passage 10 as shown by an arrow c in FIG. Reflux in water tank 1. Accordingly, in the water absorption passage 10, the first flow of water filtered through the filter medium 6 and the second flow of water filtered through the coarse filter medium 15 merge to form the water absorption passage. 10 rises and flows back into the water tank 1 through the discharge pipe 7.

しかして、濾過本体Ｆ内を流れる水を、濾材６を通る第１の流れと、粗な濾材１５を流れる第２の流れとの分流することにより、濾材６を流れる第１の流れの流速が減じられて濾材６に付着する好気性微生物の繁殖を促し、水の有機的浄化作用が促進される。   Thus, the flow rate of the first flow through the filter medium 6 is increased by dividing the water flowing through the filter body F into the first flow through the filter medium 6 and the second flow through the coarse filter medium 15. The aerobic microorganisms that are reduced and adhere to the filter medium 6 are promoted to promote organic purification of water.

水槽１内の底部には、大磯などの砂利１８が敷設される。   At the bottom of the aquarium 1, gravel 18 such as a large coral is laid.

ところで、エアポンプＰｕの加圧エアにより発生する吸水力より、水槽１内の水を効率よく吸い上げるには、加圧エアの噴出されるエアストン９を、吸水通路１０の適正位置（図３，６実線位置）に常に的確に保持する必要があり、若し仮に図６に２点鎖線Ｌ１に示すように、吸水通路１０内に挿入されるエアストン９の一部が、吸水通路１０下端の吸水口２０を横切る位置まで達してしまうと、吸込通路１０内に吸い込まれる水の中に、エアストン９から噴出されるエアの一部が混入してしまい、水の吸込能率が低下する不都合があり、また、図６に１点鎖線Ｌ２に示すように、エアストン９を吸込口２０から遠く避けるべく該吸込口２０よりも上方に離れた位置に保持させると、水面からエアストン９に至る水の吸い上げ距離が短くなり、この場合にも水の吸込能率が低下する不都合がある。   By the way, in order to efficiently suck up the water in the water tank 1 from the water absorption force generated by the pressurized air of the air pump Pu, the airstone 9 from which the pressurized air is ejected is moved to an appropriate position (see solid lines in FIGS. 3 and 6). The position of the airstone 9 is inserted into the water absorption passage 10 as shown by a two-dot chain line L1 in FIG. If it reaches a position crossing the water, a part of the air ejected from the airstone 9 is mixed into the water sucked into the suction passage 10, and there is a disadvantage that the water suction efficiency is lowered, As shown by a one-dot chain line L2 in FIG. 6, if the airstone 9 is held at a position away from the suction port 20 so as to be far away from the suction port 20, the suction distance of water from the water surface to the airstone 9 is short. Become In this case there is a disadvantage to decrease the suction efficiency of the water.

そこで、この実施例では、前記不都合を解消すべく、図３，６実線に示すように、吸込通路１０に対するエアストン９の上下方向の相対位置を常に適正位置、すなわち吸込口の直上位置に確実に保持できるようにしたものである。   Therefore, in this embodiment, in order to eliminate the inconvenience, as shown by solid lines in FIGS. 3 and 6, the relative position in the vertical direction of the airstone 9 with respect to the suction passage 10 is always ensured to an appropriate position, that is, a position directly above the suction port. It can be held.

図３，５に示すように、排出管７の、エアパイプ８の差込孔７Ｈには、係止手段Ｅとしての硬質の合成樹脂材よりなる、パイプ係止具３０が着脱自在に嵌着されている。図７に最も明瞭に示すように、このパイプ係止具３０は、内面に前記差込孔７Ｈに挿入されるパイプ挿入孔３１を有して短円筒状に形成されていて、その外周に外向きフランジ部３２が形成されており、この外向きフランジ部３２より下方の周壁には縦方向の複数のすり割り（４つ）３３が入れられており、それらのすり割り３３間に複数（４つ）の弾性挟持片３４がそれぞれ形成され、これらの弾性挟持片３４の内面に尖鋭突起３５が内方に向けて一体に突設されている。そして、このパイプ係止具３０は、その外周面が排出管７の差込孔７Ｈに嵌着され、その外向きフランジ部３２が排出管の上面に着座される。   As shown in FIGS. 3 and 5, a pipe locking tool 30 made of a hard synthetic resin material as the locking means E is detachably fitted in the insertion hole 7 </ b> H of the air pipe 8 of the discharge pipe 7. ing. As shown most clearly in FIG. 7, the pipe locking tool 30 has a pipe insertion hole 31 to be inserted into the insertion hole 7H on the inner surface and is formed in a short cylindrical shape. An orientation flange portion 32 is formed, and a plurality of vertical slits (four) 33 are placed in the peripheral wall below the outward flange portion 32, and a plurality (4) are provided between the slits 33. The elastic pinching pieces 34 are respectively formed, and sharp protrusions 35 are integrally projected on the inner surfaces of these elastic pinching pieces 34 inward. The outer peripheral surface of the pipe locking tool 30 is fitted into the insertion hole 7H of the discharge pipe 7, and the outward flange portion 32 is seated on the upper surface of the discharge pipe.

図３，５に示すように、濾過本体Ｆ内の吸込通路１０内に弾性のエアパイプ８を挿着すべく、このエアパイプ８をパイプ係止具３０に挿入したとき、複数の弾性挟持片３４の尖鋭突起３５は、弾性のエアパイプ８の外周面に食い込んで、このエアパイプ８、したがってエアストン９を濾過本体Ｆに対して適正位置に保持することができ、エアパイプ８や、エアポンプＰｕに外力が作用しても妄りにエアストン９の位置がずれることがない。   As shown in FIGS. 3 and 5, when the air pipe 8 is inserted into the pipe locking tool 30 in order to insert the elastic air pipe 8 into the suction passage 10 in the filtration main body F, a plurality of elastic holding pieces 34 are arranged. The sharp projection 35 bites into the outer peripheral surface of the elastic air pipe 8 and can hold the air pipe 8 and thus the airstone 9 in an appropriate position with respect to the filtration body F. External force acts on the air pipe 8 and the air pump Pu. However, the position of Airstone 9 does not shift due to the paranoia.

以上、本発明の実施例について説明したが、本発明はその実施例に限定されることなく、本発明の範囲内で種々の実施例が可能である。   As mentioned above, although the Example of this invention was described, this invention is not limited to the Example, A various Example is possible within the scope of the present invention.

たとえば、前記実施例では、パイプ係止具３０は、排出管７に設けているが、これを吸水通路１０に設けてもよい。また、前記実施例では、濾材６および粗な濾材１５を流れる第１および第２の二つの水流が生成される内部式濾過装置の場合について説明したが、一つの濾材を流れる一つの水流が生成される内部式濾過装置にも実施することができる。   For example, in the above embodiment, the pipe locking tool 30 is provided in the discharge pipe 7, but it may be provided in the water absorption passage 10. Moreover, although the said Example demonstrated the case of the internal-type filtration apparatus with which the 1st and 2nd water flow which flows through the filter medium 6 and the coarse filter medium 15 was produced | generated, one water flow which flows through one filter medium is produced | generated. It can also be implemented in an internal filtration device.

１・・・・・・・・水槽
６・・・・・・・・濾材
７Ｈ・・・・・・・差込孔
８・・・・・・・・エアパイプ
９・・・・・・・・エアストン
１０・・・・・・・吸水通路
３０・・・・・・・パイプ係止具
３１・・・・・・・パイプ挿入孔
３３・・・・・・・すり割り
３４・・・・・・・弾性挟持片
３５・・・・・・・尖鋭突起
Ｅ・・・・・・・・係止手段
Ｆ・・・・・・・・濾過本体
Ｐｕ・・・・・・・エアポンプ 1 ... Water tank 6 ... Filter medium 7H ... Insert hole 8 ... Air pipe 9 ... Airstone 10 ······ Water absorption passage 30 ···················································································· .... Elastic clamping piece 35 ... Sharp projection E ... Locking means F ... Filtration body Pu ... Air pump

Claims (2)

水槽（１）内に設置される濾過本体（Ｆ）の吸水通路（１０）内に、先端にエアストン（９）が接続されるエアパイプ（８）を挿入し、このエアパイプ（８）の外端に水槽（１）の外に設けられるエアポンプ（Ｐｕ）を接続し、該エアポンプ（Ｐｕ）よりエアストン（９）を通して前記吸水通路（１０）内に噴出する加圧エアにより、水槽（１）内の水を、前記濾過本体（Ｆ）内の濾材（６）および吸込口（２０）を通して吸水通路（１０）内に吸い上げて水槽（１）内に還流させるようにした内部式濾過装置において、
前記濾過本体（Ｆ）には、エアストン（９）に接続されるエアパイプ（８）が、吸水通路（１０）内の所定位置に移動しないように係止される係止手段（Ｅ）が設けられることを特徴とする、内部式濾過装置。 An air pipe (8) to which an airstone (9) is connected is inserted into the water absorption passage (10) of the filtration body (F) installed in the water tank (1), and the air pipe (8) is connected to the outer end of the air pipe (8). An air pump (Pu) provided outside the water tank (1) is connected, and water in the water tank (1) is supplied by pressurized air that is jetted from the air pump (Pu) through the air stone (9) into the water absorption passage (10). In the internal filtration device, the filter medium (F) in the filter body (F) and the suction port (20) are sucked into the water absorption passage (10) and recirculated into the water tank (1).
The filtration body (F) is provided with a locking means (E) for locking the air pipe (8) connected to the air stone (9) so as not to move to a predetermined position in the water absorption passage (10). An internal filtration apparatus characterized by the above. 前記係止手段（Ｅ）は、前記濾過本体（Ｆ）の上部に形成される差込孔（７Ｈ）に着脱可能に設けられるパイプ係止具（３０）よりなり、このパイプ係止具（３０）は、内面にパイプ挿通孔（３１）を有して円筒状に形成され、その周壁にすり割り（３３）を挟んで複数の弾性挟持片（３４）が一体に設けられ、これらの挟持片（３４）の内面に、エアパイプ（８）の外面に食い込む尖鋭突起（３５）が突設されていることを特徴とする、前記請求項１記載の内部式濾過装置。   The locking means (E) includes a pipe locking tool (30) detachably provided in an insertion hole (7H) formed in the upper part of the filtration body (F). ) Is formed in a cylindrical shape having a pipe insertion hole (31) on the inner surface, and a plurality of elastic clamping pieces (34) are integrally provided on the peripheral wall with a slit (33) interposed therebetween, and these clamping pieces 2. The internal filter according to claim 1, wherein a sharp protrusion (35) that protrudes into the outer surface of the air pipe (8) is provided on the inner surface of (34).
JP2010036535A 2010-02-22 2010-02-22 Internal filtration device Pending JP2011167167A (en)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN103875588A (en) * 2014-01-26 2014-06-25 广东海洋大学 Pond water self-circulation system and method for prawn intensive culture pond
CN106719209A (en) * 2016-11-19 2017-05-31 黄平县幺妹滩科技生态有限公司 A kind of floatation type aquaculture device
KR101842035B1 (en) 2017-08-17 2018-03-26 이윤수 Water tank for jellyfish
KR20210075454A (en) * 2019-12-13 2021-06-23 이승혜 Dust reducing and filtering apparatus for fishtank

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JPS62128759U (en) * 1986-02-04 1987-08-14
JPH05168825A (en) * 1991-12-19 1993-07-02 Suiken:Kk Filter
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JPH11206268A (en) * 1997-11-21 1999-08-03 Onoda Autoclaved Light Weight Concrete Co Ltd Diffuser for raising water tank and air diffusing member
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103875588A (en) * 2014-01-26 2014-06-25 广东海洋大学 Pond water self-circulation system and method for prawn intensive culture pond
CN106719209A (en) * 2016-11-19 2017-05-31 黄平县幺妹滩科技生态有限公司 A kind of floatation type aquaculture device
KR101842035B1 (en) 2017-08-17 2018-03-26 이윤수 Water tank for jellyfish
KR20210075454A (en) * 2019-12-13 2021-06-23 이승혜 Dust reducing and filtering apparatus for fishtank
KR102388091B1 (en) 2019-12-13 2022-04-18 이승혜 Dust reducing and filtering apparatus for fishtank

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