| 摘要 |
<p>A hose pump comprises a housing (1) with a circularly curving wall surface (8) and a rotatable support means (9) carrying a plurality of rollers (22, 23, 24), where said support means is adapted to press said rollers (22, 23, 24) against the circular wall surface (8) and to cause said rollers (22, 23, 24) to propel a fluid through a hose, a length of said hose being arranged between the wall surface (8) and the rollers (22, 23, 24). The support means (9) of the rollers (22, 23, 24) is connected to said rollers (22, 23, 24) by means of a displacing mechanism (15 to 18, 30 to 33) adapted to move the rollers (22, 23, 24) into a squeezing engagement with the hose length in question when the support means (9) is turned in the fluid propelling direction and to pull said rollers (22, 23, 24) out of said engagement when said support means is turned in the opposite direction.</p> |
