| 摘要 |
<p>According to an embodiment of the present invention, a cleaning apparatus for the outer wall of a building, having a drawable parachute comprises: a body part; a plurality of expandable leg members installed on the body part; an adhering member installed at the end of a leg member; a moving part for moving the body part; a cleaning part moving up and down on the body part to clean a target area; a drawing part installed on the body to enable users to draw the parachute; and a controller for controlling the operation of the moving part, the cleaning part, and the drawing part.</p> |
