Stator for an eccentric screw pump with a rotation-prevention means

摘要

Stator for an eccentric screw pump (1) with a on the outer contour (19) against rotation, which can be arranged (5), wherein the anti-rotation device (5) is a rod (8) and a rod receptacle (9), and wherein the rod receptacle (9) firmly on the outer contour (19) of the stator is arranged and which control rod (8) along an axial direction on the rod receptacle (9) is a - or by being plugged, characterized in that the rotation preventing means (5) a movable securing element (12), which is designed that, when a - or plugging of the securing rod (8) the securing element (12) into a retracted position (r1, r2) is moved or is moved, in which it permits the plug-in movement, and – at the end of the inserting movement, the securing element (12) in an overlapping position (e) is moved or is moved, in which the control rod (8) is in a form-fitting manner relative to the rod receptacle (9) fixed.