LOCKING MECHANISM

A locking mechanism comprising: a cylindrical part (5, 21) which has an axis of a cylinder and has grooves which are rotationally symmetrical about the axis of the cylinder, the grooves defining a guiding curve; a component (15) which comprises a set of two symmetrical pins (13, 14, 36, 37) which are movable with respect to the cylindrical part or vice versa, and the set's pins (13, 14, 36, 37) fit inside the grooves and are movable along the guiding curve from locking positions (45) to respective unlocked positions (41) and vice versa, and the component (15) and the set's pins are rotatable with respect to the cylindrical part about the axis of the cylinder by 360 degrees divided by the number of locking or unlocked positions from a first unlocked position to a second unlocked position or from a first locking position to a second locking position.