Abstract: A coupling arrangement for connecting components, including a first and a second coupling part, where an end portion of the first coupling part is provided with an internal thread and an end portion of the second coupling part is provided with an external thread which is screwed into the internal thread of the first coupling part. A clamping sleeve is rotatably received on an outer surface of the end portion of the first coupling part, in which an inner surface of the clamping sleeve and the outer surface of the end portion of the first coupling part each have latch geometries which deviate from a circular geometry to provide, during a rotational movement of the clamping sleeve relative to the end portion of the first coupling part, an at least regionally elastic or elastic and plastic change in diameter for clamping the end portion of the second coupling part.

Abstract: Fitting for fixing a threaded element to a wall section, including a base body which is penetrated by a recess, which recess is extended along a central axis, further including a clamping ring which is rotatably mounted on an outer surface of the base body, wherein a cam is assigned to the outer surface of the base body or to the clamping ring, which cam effectuates a change in diameter of the clamping ring during a rotary movement of the clamping ring relative to the base body, wherein a coupling part is movably received in the recess and forms with the base body a rotary coupling, wherein a threaded portion of the coupling part determines a thread axis, wherein the coupling part is accommodated in the recess with a variable orientation of the thread axis within a predetermined angular interval and/or within a predetermined distance interval to the central axis.

Abstract: A coupler for force-transmitting coupling of two components, with a first coupling part having a first coupling interface, with a second coupling part having a second coupling interface, and with a coupling rod which is connected with a first end portion rotatably movable about an axis of rotation to the first coupling part and with a second end portion rotatably movable about the axis of rotation to the second coupling part, wherein the first end portion and the first coupling part form a first thread arrangement for adjusting a distance between the first coupling part and the second coupling part, wherein the first thread arrangement is assigned a first brake system, which is designed for a frictional brake torque transmission between the first coupling part and the first end portion.