| 摘要 |
PURPOSE: A contamination prevention and watertight device for groundwater which is easy to install and change a water pumping system is provided to prevent the water leakage by controlling the location of the water pumping system. CONSTITUTION: A contamination prevention and watertight device for groundwater comprises a waterproof casing(10), a connecting pipe(20), a pumping pipe(30) and a locking bar. A water supplying pipe is fixed and installed inside a floor of the waterproof casing. A short diameter pipe casing is mounted inside the waterproof casing and connected to a large diameter pipe casing. A reducing part is inserted to the lower part of a fastening part(14a). A water meter(3) and a check valve(2) are consecutively connected and installed on one side of the connecting pipe. A hanging part supports to prevent a water supply system from slacking. |
