Importance

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Abstract

A driving mechanism for a musical water ball provides a waterproof effect and enables the decoration of the water ball to rotate more smoothly and accurately. The driving mechanism includes a seat member, a silicone gasket, a central shaft rod, a fastening plate, a spring and a driven perforated disc. The silicone gasket is disposed in an inner hole seat of the seat member. The silicone gasket is formed with inner and outer rings that define an annular groove. When water flows into the annular groove, a fastening pressure is formed to bind the gasket to the central shaft rod. Water is thus prevented from infiltrating back so as to avoid rusting of the driving mechanism. Each of upper and lower ends of the shaft rod is formed with engaging teeth for engaging with a corresponding structure of the rotary tray and a corresponding structure of the central hole of the driven perforated disc. A spring is fitted around the shaft rod to abut against the fastening plate to provide a buffering effect.

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First Claim