PUMPING DEVICE Russian patent published in 2021 - IPC F04B43/12 

FIELD: pump engineering.

SUBSTANCE: invention relates to the field of pump engineering, in particular to pumping devices having a hose pumping element. The pumping device comprises a clamping device having at least one clamping unit (14) for clamping at least one hose pumping element (16, 18). A driving force is applied to the hose pumping element in at least one state located in the clamping unit (14) by means of the drive unit (20) of the pumping device to pump the medium. The clamping unit (14) is provided in order to in a bent way clamp the hose pumping element (16, 18) as a whole, when viewed in a cross-section extending in a transverse direction to the pumping direction (22, 24) of the hose pumping element (16, 18). The clamping unit (14) has at least one the clamping element (28, 30), primarily made different from the drive element (26) of the drive unit (20), which has a convex support element (32), forming a fitting surface for the hose pumping element (16, 18). The clamping unit (14) has at least a clamping element (28, 30) that has at least one angled clamping plane (48, 50), The clamping element (28, 30) includes at least one coupling element (70, 72), which is located on the clamping plane (48, 50) of the clamping element (28, 30).

EFFECT: better clamping of the hose element being pumped takes place, and the efficiency of pumping the medium increases.

7 cl, 6 dwg