CLOSED-TYPE GROUNDWATER DEEP WELL COVER APPARATUS HAVING DISCHARGE PORT AND WATER SUPPLY PORT

摘要

PURPOSE: A closed-type groundwater deep well cover apparatus is provided to facilitate maintenance by integrally separating water supply pipes together with a closed deep well cover and to enable economical construction by simplifying an upper protective hole. CONSTITUTION: A closed-type groundwater deep well cover apparatus comprises a lower combining unit having an outer casing(15) integrally connected to the lower part; a packing arranged to the upper part of the lower combining unit; a closed deep well cover arranged to the upper part of the packing; bolts having a long head to project through holes and screw holes; and a water pumping pipe(2) arranged between a discharge port and an upper connection water supply port. A lower connection water supply port and a connection screw hole are formed in the lower combining unit in a vertically communicating state. The packing has a hollow formed in the center and a connection hole formed in a side. The discharge port is formed to the central upper part of the closed deep well cover and a connection flange is formed to the lower part of the closed deep well cover. The upper connection water supply port is integrally formed to one end of the closed deep well cover. The screw holes are formed in the lower combining unit at uniform intervals. The holes are formed in the packing and the closed deep well cover at positions opposed to the screw holes. A second check valve(40), a water meter(41), and a globe valve(42) are connected to the water pumping pipe.