The utility model relates to an aquarium oxygenation pump structure, in which at least one air pump driven by a circulating motor is arranged inside the shell to generate air flow and output it to the aquarium. The air pump comprises a driving unit, a diaphragm seat, a compression diaphragm, a valve seat and a top cover, and uses the driving unit to repeatedly extrude and expand the cup part of the compression diaphragm to generate an action, which can push the internal air through. Open the outlet valve plate through the outlet channel of the valve seat, and finally discharge it through the air nozzle of the top cover, so as to continuously generate gas and supply it to the aquarium.At the same time, a charging battery and a circuit board are set beside the air pump. When the power is cut off, the charging battery can be switched to supply power to the air pump immediately to form a continuous electric aquarium charging device.一種水族增氧泵構造，於一外殼內部裝置有至少一採用循環式馬達驅動之氣泵，藉以產生氣流輸出至水族箱中，該氣泵包括設有驅動單元、隔膜座、壓縮隔膜、閥門座以及頂蓋，並利用驅動單元不斷的反覆擠壓及擴張壓縮隔膜之皮碗部產生作動，可推動內部空氣通過閥門座之出氣通道開啟出氣閥片，最後經由頂蓋之氣嘴排出，即可持續的產生氣體供給至水族箱中。同時氣泵旁更設有一充電電池及電性相接於一電路板，而當停電時，則可馬上切換由充電電池供給氣泵電力，形成不斷電的水族充氣裝置。
