UNDERGROUND WATER UPSIDE PROTECTION PIPE

摘要

The present invention relates to a top protection pipe for an underground water tube well. An underground pump pipe (50) is connected to a pumping pipe connected to a water taking destination at the top of a tube well casing installed to take underground water. The top protection pipe comprises: an outer casing pipe (10) which has a pipe shape, which has an upper end opening exposed onto the ground surface, and has a lower end connected to the upper end of the tube well casing; and a water supply pipe (20) which is integrally formed on one side of the inner circumferential surface of the outer casing pipe (10) in the shape of an L-shaped pipe, has a water supply pipe outlet part (22) at the lower end to be connected to a water taking destination, and has a water supply pipe inlet part (21) coupled to a pump pipe outlet part (51a) of the pump pipe (50). The top protection pipe can be easily produced, and can be installed to have the reduced weight. Maintenance thereof is easy, and the depth of a pumping pipe can be easily adjusted.