| 摘要 |
PURPOSE: A marking nail of water supply pipe line is provided to reduce manufacturing cost by simple structure and to keep the fixed state by fixing a circular plate, a protruded rib, and a second marking unit on the ground. CONSTITUTION: A pipe flow checking unit(100) is fixed to a water supply pipe, and confirms a moving direction. A body(200) protects the top of the pipe flow checking unit, and has a structure of being fixable on the ground. A mark fixing unit(300) is fixed with the body to the surface, and suggests reference position of the pipe flow checking unit. The home location of the pipe flow confirmation device is exhibited. A apparent cover(400) prevents flow-in of abnormal material. |
