A combined egg beater and bottle cleaner which includes a first handle, a second handle pivotally connected with the first handle, a spiral spring forcing the second handle to move away from the first handle, a fixing bolt fitted in the bolt hole and having a center axle, a toothed rack, a pinion having an upper end formed with a cylindrical hole for receiving a center axle of the fixing bolt and a lower end provided with a plurality of serrations, an adaptor having a plurality of serrations engaged with the serrations of the pinion, the adaptor having a U-shaped lower end having two convex portions adapted to engage with two recesses of a center rod of an agitator or two recesses of a center rod of a brush; and a driven gear having a smaller gear and a larger gear respectively engaged with the toothed rack and the pinion.
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