A back-and-forth peristaltic mechanism

Abstract

A reciprocating peristaltic mechanism, characterized in that it comprises a reciprocating threaded spindle (1) which is in drive connection with a drive device (2), a spiral guide part (11) is provided on the reciprocating threaded spindle (1), at least two sliding blocks (3) are provided on the reciprocating threaded spindle (1), output parts (4) are provided within the sliding blocks (3) which are movably fitted into the spiral guide part (11), directions of movement of the output parts (4) corresponding to the two adjacent sliding blocks (3) are opposite, a guide component is provided on the sliding block (3) to limit the movement of the sliding block (3) in the axial direction, and a vibration element (5) is pivotally connected between the two adjacent sliding blocks (3).