| 摘要 |
PURPOSE: A boring screw device for inputting earth resistance lowering agent and burying an earth bar is provided to reduce a working time and personnel expenses by inputting the earth resistance lowering agent and the earth bar into an underground hole at the same time. CONSTITUTION: A boring screw device includes a screw(1), a hexagonal bar(30), a connection unit(20), and a fixing housing(10). The screw has an earth bar chamber and a hexagonal connector. The earth bar chamber is formed in the center of the screw to receive the earth bar. The hexagonal connector is combined in the connection unit. The hexagonal bar is combined in the hexagonal connector. The connection unit has a path and a square shaft hole. The path is used for supplying the earth resistance lowering agent. A rotation axis of a hydraulic rotation device is combined in the square shaft hole. The fixing housing has an earth resistance lowering agent inlet tube and a fixer. |
