| 摘要 |
<p>The lift consists of a rectangular frame (1) with a central opening (3) and has a lower spindle (4) and lifting brackets (5) on the chassis (6). Each bracket is connected to the hydraulic jack, connected to the beam (10). The chassis (6) has three sections (6a,b,c). The central section has the jack (11) operating on the crank (14) connected to the rod (13). The crank is connected to the shaft (15). The other frames are fixed to the plates (17,18) arranged symmetrically about the central jack (11).</p> |
