Multistage lock cylinder assembly

A lock cylinder assembly comprising:

• a base having an axis and a central tube extending from the base along the axis;
• a disk holder attached to the base and having a stub axially protruding from the disk holder;
• a driving sleeve rotatably extending through the central tube on the base and having an outer end and an inner end;
• a driving rod rotatably extending through the stub on the disk holder and the driving sleeve and having an outer end extending out of the outer end of the driving sleeve, the driving rod having an inner end extending out of the inner end of the driving sleeve;
• multiple selecting disks rotatably connected to the base along the axis of the base, two selecting disks being connected to the base and including a first selecting disk and a second selecting disk, the first selecting disk being securely mounted on the outer end of the driving sleeve, the second selecting disk being securely mounted on the outer end of the driving rod;
• and
• multiple disk sets operationally mounted along the axis of the base and respectively connected to the selecting disks, and each disk set comprising multiple disks operationally mounted along the axis of the base and connected to and driven by a respective one of the selecting disks, two disk sets being connected to the base and respectively connected to the selecting disks and includes a first disk set and a second disk set, the first disk set being held inside the disk holder, the first disk set being rotatably connected to the first selecting disk with the driving sleeve and includes a first driving disk securely mounted on the inner end of the driving sleeve and at least one first driven disk rotatably mounted around the central tube on the base and connected to and driven by the first driving disk, and each of the first driving disk and the at least one first driven disk having a notch defined in a periphery of the disk, the second disk set being rotatably connected to the second selecting disk with the driving rod and includes a second driving disk securely mounted on the inner end of the driving rod and at least one second driven disk rotatably mounted around the stub on the disk holder and connected to the second driving disk, and each of the second driving disk and the at least one second driven disk having a notch defined in a periphery of the disk.