Disc tumbler cylinder lock

A disc tumbler cylinder lock comprising:

• a lock sleeve being a hollow tube;
• a lock cylinder base rotatably mounted in the lock sleeve;
• an end of the lock cylinder base forming
• an accommodating space;
• a position limiting opening;
• and
• an accommodating opening;
• another end of the lock cylinder base forming
• a fixing rod;
• multiple discs;
• each of the discs having
• a key hole formed through the disc;
• a position limiting protrusion protruding from an outer annular surface of the disc;
• and
• a disc notch concaved from the outer annular surface of the disc;
• multiple gaskets;
• each of the gaskets having
• a ring body being a ring;
• a position limiting segment protruding outward from an outer annular surface of the ring body along a radial direction;
• a rotation limiting segment protruding from the position limiting segment along an axial direction of the lock sleeve;
• and
• a concave segment concaved from the outer annular surface of the ring body;
• the discs and the gaskets staggeredly accommodated in the accommodating space;
• a side surface of the position limiting protrusion abutting a side surface of the position limiting opening;
• two sides of the position limiting segment abutting two opposite side edges of the position limiting opening;
• each rotation limiting segment being adjacent to another side surface of the position limiting protrusion;
• a needle roller mounted in the accommodating opening;
• wherein each of the gaskets has a gasket notch concaved inward;
• the rotation limiting segment is a bent sheet protruding from the gasket notch along the axial direction of the lock sleeve.