PROBLEM TO BE SOLVED: To provide a device for cleaning the inside of an aquarium utilizing a siphon effect, and sucking up dirt such as a remaining bait in water of the aquarium together with polluted water to the outside by extremely simple operation.SOLUTION: The inside of a water passage 24 between an upstream one-way valve Vu and a downstream one-way valve Vd is pressurized or decompressed by pressing operation of a sucking up operation tool A provided in a bent connecting section between a body section 1 and a holding section 2 of a suction pipe P. Thereby, the water of the aquarium in the body section 1 is sucked into the suction pipe P.COPYRIGHT: (C)2010,JPO&INPIT【課題】 サイフォン作用を利用した水槽内清掃具であって、きわめて簡単な操作で、水槽水内の残餌などの汚物を汚水と共に外部に吸い上げる。【解決手段】 吸上パイプPの本体部分1と把持部分2との間の屈曲接続部に設けられる吸上操作具Aの押圧操作により、上流側一方向弁Vuと下流側一方向弁Vdとの間の水通路24内を加圧あるいは減圧し、本体部分1の水槽水内を吸上パイプP内に吸引する。【選択図】 図1
