Liquid level detection apparatus, sewage tank having liquid level detection apparatus, and cleaning device

Abstract

The disclosure discloses a liquid level detection apparatus, including a floater and a floater accommodating portion, wherein the floater moves in the floater accommodating portion in a vertical direction; an upper clamping portion and a lower clamping portion are provided on the floater in the vertical direction, a moving groove is formed in the floater accommodating portion, the moving groove extends in the vertical direction, and the upper clamping portion and the lower clamping portion move in the moving groove in the vertical direction; and a clamping groove is formed in the moving groove extending along a horizontal direction, and when the liquid level detection apparatus inclines, the upper clamping portion offsets into the clamping groove, such that the floater not easily be sucked to block a suction port, thereby avoiding resulting in the phenomenon that an alarm is given when the water is not full in fact.

Dependencies are inferred from the claim text.