| 摘要 |
<p>A mechanically simply battery operated air pump for one hand operation comprises a battery (1), a motor (2), a gear (3), a cylinder/piston pump (4), and a nozzle (5). The battery, the motor, the gear, and the cylinder/piston pump are arranged end to end in order to provide a pump structure tapering against the nozzle (5). The gear (3) is constituted by a pinion (10) rotating around an axis (11) extending parallel to the longitudinal axis (12) of the pump whereas a driven wheel (13) rotates around an axis (15) perpendicular to the longitudinal axis (12) of the pump. The cylinder/piston pump (4) is arranged for a connecting rod movement with rotation around an axis (24) being parallel to the axis of rotation (15) for the driven wheel (10). The nozzle (5) is arranged concentric around the axis (15), and accordingly, it may be fastened directly on said cylinder (21). The motor (2) drives the cylinder/piston pump (4) through the gear (3) in a connecting rod movement whereby the piston (20) is displaced in the cylinder (21) in order to establish an overpressure within the cylinder (21). Preferably, the pump is intended for bicycles, however, it could also be used for other purposes.</p> |
