NASA Clamp - On/Off

grabcad

In this design, the blue part remains stationary. The green component can be moved. To secure the assembly, rotate the white piece. After anchoring it in the bar, attempting to move it would result in compressive forces on the white element, making relocation impossible. Note that the white space is for cost-saving purposes; however, it may also be solid. This concept is still in its early stages and requires additional elements to prevent the assembly from shifting unintentionally. Feedback is appreciated.