Automatic water sample collecting device for rainwater inspection well

The invention relates to an automatic water sample collecting device for a rainwater inspection well. The automatic water sample collecting device for the rainwater inspection well can be used for automatically collecting a water sample in a rainwater pipeline in a catchment basin, and consists of baffle plates, a shaft-end pressing plate, a rotary shaft, a key, an outer vertical column, second baffle plates, a thrust ball bearing, a travel switch, a fixed collision block, a speed reducer, a direct current motor, a storage battery, a bottom plate, a third baffle plate, a bracket, a pipeline, a pipeline bracket, a rotary table, a cup base, a lifting lug, a side plate, a top plate, a telescopic rod bracket, a telescopic rod, a floating ball valve, a water pump and a weir height adjustable water collector. The automatic water sample collecting device is applicable to sampling of rainwater runoff collected by the rainwater inspection well in various underlying surface types, is matched with the inspection well, and meets a sampling requirement for research on non-point source pollution to a large extent.