Foundation pit drainage device and using method thereof
A technology for drainage devices and foundation pits, applied in water supply devices, drainage structures, excavation, etc., can solve problems such as easy blockage of pipes, and achieve the effect of reducing the possibility of blockage
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[0038] Embodiment: a foundation pit drainage device, including a drainage pump 1 and a water collection well 3, the drainage pump 1 is arranged on one side of the water collection well 3, and the water-drawing end of the drainage pump 1 is movably connected with an opening facing the sewage in the water collection well 3 The elbow 2 above the liquid level, the outer end of the elbow 2 is movably connected to a drainer 4 that can rise and fall with the rise and fall of the sewage liquid level in the water collecting well 3, and the drainer 4 includes a counterweight 41 floating on the liquid surface, The sewage enters from the bottom of the counterweight 41 and can filter the sewage. The water inlet end of the elbow 2 is set above the counterweight 41 and rises and falls in the water collecting well 3 with the displacement of the counterweight 41, and the The sewage filtered by the counterweight 41 is pumped out of the water collecting well 3 through the drainage pump 1 .
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