| 摘要 |
An automatic swimming pool cleaner is provided, comprising a first gear (11) and a second gear (12) and a mechanism for changing between the first gear (11) and the second gear (12), where the mechanism comprises an oscillatable gear carrying assembly moveable between a first position wherein the first gear (11) is engaged to a worm (10) and a second position wherein the second gear (12) is engaged to the same worm (10). |
