The invention discloses a
sluice gate capable of clearing
pollution and preventing freezing and manufacturing and using methods of the
sluice gate. Thesluice gate comprises a
machine body, a sliding groove, a supporting rod, a fixing clamping block, a floating block and an anti-freezing mechanism, the
machine body is internally provided with a drainage groove, a water outlet is formed in the drainage groove, a water outlet valve is arranged on the upper part of the water outlet, the upper part of the water outlet valve is connected with a bottom groove, the bottom groove is connected with thedrainage groove through a
bottom water outlet valve, the sliding groove is formed in the upper part of one side of the bottom groove, a
sluice gate body is arranged on one side of the sliding groove,installed on the upper part of the bottom groove, a flood discharging sliding groove is formed in the outer wall of one side of the
sluice gate body, and a flood discharging
sluice gate is embedded inthe flood discharging sliding groove. According to the water
sluice gate capable of clearing floating objects on the water surface and preventing freezing, the drainage groove is installed, after thewater sluice gate is lowered, water inside the sliding groove flows to the bottom groove, the water outlet valve is opened, the water of the bottom groove can be discharged out of the water outlet onthe drainage groove, in this way, the interiors of the sliding groove and the bottom groove cannot have accumulated water, and freezing can be well prevented.