| 摘要 |
The present invention relates to a vacuum wall crawler (1) having at least one vacuum track unit (100) comprising:
- a track frame (150);
- two pulleys (140, 141) provided in opposite ends of the track frame (150), and defining a wheelbase (W);
- an endless track (110) arranged to circulate on the two pulleys (140, 141), and comprising a flexible band (120), said flexible band (120) comprising a plurality of apertures (123), and having a thickness (T);
- a vacuum distribution box (200) provided in said track frame (150)
wherein the vacuum distribution box (200) is in communication with a portion of the apertures (123) to distribute a vacuum to the portion of apertures (123) as the endless track (110) circulates, where the thickness (T) of the flexible band (120) is 5-20% of the wheel base, W. |
