| 摘要 |
PURPOSE: A water aeration device is provided to maintain a state of the water aeration device regardless of change of a water level by installing a hollow aeration pipe on the center of a truss structure by a rope, and to increase effectiveness of the device. CONSTITUTION: A water aeration device comprises the following: an air chamber(11) installed on the bottom; an aeration pipe(10) extended from the top of an air chamber; a truss structure(20) connected to the top of the aeration pipe by a rope(60); a float(30) installed according to the truss structure; and a support rope(50) connected to four sides of the truss structure. |
