Locking arrangement for connecting and interlocking rods at a node within a framework, the locking arrangement comprising: several connection rods; and a central node bearing configured to be engaged from different directions by each of the connection rods at respective mounting ports by plugging each connection rod onto a respective mounting port, wherein the central node bearing is configured with at least one locking element at each mounting port to be actuated between a locked state, in which the at least one locking element resides in an outward position and the respective connection rod plugged onto the respective mounting port is clutched to the central node bearing by the at least one locking element, and an unlocked locked state, in which the at least one locking element resides in an inward position and the respective connection rod is released from the central node bearing; wherein the central node bearing is provided with a central actuation system configured to move actuation pins axially into and out of respective mounting ports to actuate the respective at least one locking element between the locked state and the unlocked state; characterized in that the central actuation system comprises a rotatable actuation element rotatably mounted in a center portion of the central node bearing and engaging at least one of the actuation pins with a corresponding radial ramp portion, the radial ramp portion being wedge-shaped in a circumferential direction around the rotation axis of the rotatable actuation element such that the corresponding actuation pin is moved into and out of the corresponding mounting port by the corresponding radial ramp portion under rotation of the rotatable actuation element. several connection rods; and a central node bearing configured to be engaged from different directions by each of the connection rods at respective mounting ports by plugging each connection rod onto a respective mounting port, wherein the central node bearing is configured with at least one locking element at each mounting port to be actuated between a locked state, in which the at least one locking element resides in an outward position and the respective connection rod plugged onto the respective mounting port is clutched to the central node bearing by the at least one locking element, and an unlocked locked state, in which the at least one locking element resides in an inward position and the respective connection rod is released from the central node bearing; wherein the central node bearing is provided with a central actuation system configured to move actuation pins axially into and out of respective mounting ports to actuate the respective at least one locking element between the locked state and the unlocked state; characterized in that the central actuation system comprises a rotatable actuation element rotatably mounted in a center portion of the central node bearing and engaging at least one of the actuation pins with a corresponding radial ramp portion, the radial ramp portion being wedge-shaped in a circumferential direction around the rotation axis of the rotatable actuation element such that the corresponding actuation pin is moved into and out of the corresponding mounting port by the corresponding radial ramp portion under rotation of the rotatable actuation element.