| 摘要 |
<p>A device for the lowering and raising of a manual operated flag includes a housing (1), a wire winding device with a wheel shaft (3), and a drive device. The drive device comprises a polygonal shaft (11), a slidable axially drive gear wheel (4) mounted on the polygonal shaft (11); The polygonal shaft (11) and the wheel shaft (3 ) are parallelly mounted on the housing (1) by bearings; One end of the polygonal shaft (11) extends outwardly through a bearing (6), and the extension end is provided with a slidable axially handgrip (7); The side of drive gear wheel (4) having the handgrip is set with a protruding block (5), and the housing (1) is arranged with a locating hole (13) matched with the protruding block (5); This section of the shaft has an axial notch (15) with a sliding block (8) mounted therein; One end of the sliding block contacts with the end surface of the drive gear wheel (4), and the other end contacts with the end surface of the handgrip (7); One end of the polygonal shaft (11) away from the handgrip is arranged with an offsetting spring (9).</p> |
