Patent ID: 7770636

Claim:
A groundwater collecting apparatus inserted in a monitoring well for collecting groundwater, the apparatus comprising: a vibration unit selectively admitting groundwater which exists in the monitoring well according to vibration in a vertical direction wherein the vibration unit comprises a channel hole being formed on a lower portion of the vibration unit and an inertia ball being movably formed in a vertical direction inside the vibration unit and selectively covering the hole; a driving unit being supplied a power to vibrate the vibration unit in a vertical direction; a hollow guide pipe being connected to the vibration unit to guide the groundwater to a ground, the groundwater having flowed into the vibration unit through a channel inlet of the vibration unit; an assistant pipe being formed outside of the vibration unit, and having a plurality of holes on a surface of the assistant pipe to admit the ground water; and a pair of packers being formed on surfaces of the hollow guide pipe and the assistant pipe, and being selectively and closely contacted to an inside of the monitoring well, wherein the vibration unit is positioned between the packers.