| 摘要 |
PURPOSE: A safety inspection system for preventing freezing and overflowing of a large-sized tube well is provided to supply clean water by preventing overflowing and freezing the tube well. CONSTITUTION: A safety inspection system for preventing freezing and overflowing of a large-sized tube well comprises a frost prevention frame(10) and an overflow prevention frame(20). The frost prevention frame is fixed to a water level part of a tube well(30), and prevent freezing. The overflow prevention frame is installed in the top of the tube well, and prevents overflowing by being automatically folded and ascended when the water overflows. |
