Importance

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Abstract

A water-storage tank cleaning apparatus comprises a pivoting axle equipped with inlet passages to mount to a drain vent of a water tank with a drainpipe locked thereto. To the pivoting axle is mounted a freely-rotatable movement element that has multiple suction tubes annularly extending thereon to fluidly connect to the inlet passages respectively. The suction tube has multiple suction orifices drilled thereon and the drainpipe has the appropriate position equipped with a water-control valve matching to an IC control panel and switching on and off in multi-staged and periodical draining cycles. Therefore, when the water-control valve is rapidly shut off, the hydrodynamics generated will actuate the rotation of the suction tubes, which will stir up the mud deposited at the bottom of the water tank to be carried off and immediately discharged there-from when the water-control valve is reopened for drainage, achieving automatic cleaning of the water tank thereby.

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First Claim