Groundwater sampling device

摘要

The present invention relates to a sampling chamber (100); A pressure control check valve (200) communicating with the lower end of the sampling chamber (100) and automatically opened by a groundwater hydraulic pressure at a specific location of a borehole to set groundwater into the sampling chamber (100); And a poppet valve (300) communicating with the upper end of the sampling chamber (100) and floating inside the float (330) installed by the water surface of the groundwater filled in the sampling chamber (100) And a groundwater collecting device (1000).