| 摘要 |
The present invention relates to a closed water supply device of a groundwater deep well. The objective of the present invention is to facilitate the disassembly and assembly work of a casing cover for sealing the casing installed in a protective ball case and to apply standard water pressure to a part directly connected to groundwater flow (the casing). The closed water supply device according to the present invention comprises: an extension casing (10), which penetrates the bottom unit of the protective ball case (1) having an inside space and accommodates a water supply system inside; a height adjusting adapter (30), which is extended or connected to the upper part of the extension casing and accommodates the water supply system to be penetrated; and the casing cover (20), which a water pipe penetrates, and which is combined to be disassembled through a coupling hole so the height adjusting adapter can be sealed. Also, the closed water supply device is constructed so that the water pressure of the groundwater is not transferred to the protective ball case and transferred to the extension casing, the height adjusting adapter, and the water supply system. |
