Device for mixing at least two fluid components, rotationally-driven mixer insert therefor, and system of the two

A system comprising:

• a mixer insert with an elongated support rod element and at least one vortexing element and a rotary-drive connection structure at one end of the support rod element, wherein the mixer insert is prepared for insertion into an elongated tubular passage element, and together therewith, is prepared for coupling with a device for mixing at least two fluid components, with the rotary-drive connection structure prepared to be placed into a drive connection with a driveshaft of the device, when the mixer insert is inserted into the passage element and the passage element is placed in fluid-tight connection with at least two component feed lines of the device, wherein the driveshaft is prepared to drive the mixer insert rotationally around an axis of rotation, which extends in the longitudinal direction of the support rod element, wherein the rotary-drive connection structure has a borehole with a borehole wall, which is located at the one of the support rod element and orientated longitudinally and coaxially with the support rod element and its axis of rotation, and which is coupled to a thread on the end of the driveshaft, for producing the driving connection such that the borehole is prepared to be screwed onto the thread, the borehole wall is being shaped by the thread, because the thread imprints and/or impresses and/or pushes into the borehole wall:
• and
• a device for mixing at least two fluid components, having at least two component feed lines and a rotary-drive with a driveshaft, wherein the device is prepared to place a tubular, elongated passage element in a fluid-tight connection with the component feed lines, and prepared by means of a rotary-drive connection structure of a mixer insert, which has the insert further having one elongated support rod element and at least one vortexing element and being prepared for insertion into the passage element to be brought with the mixer insert into a rotary-drive connection with the mixer insert, when the mixer insert is inserted into the passage element and the passage element is placed in flow connection with the component feed lines, characterized in that wherein the driveshaft has a threaded end, which, for producing the driving connection, is coupled to the rotary-drive connection connecting structure, at one end of the support rod element of the mixer insert in the form of comprising a borehole with a wall, in that the thread is prepared to be screwed into the borehole, for producing the driving connection, wherein the borehole wall is shaped by the thread, because the thread imprints and/or impresses and/or pushes into the borehole wall.