Interchangeable cylinder system

An interchangeable cylinder system for furniture locks, the interchangeable cylinder system comprising:

• a cylinder housing;
• a lock cylinder configured to be inserted into and withdrawn from the cylinder housing from a face side of the cylinder housing, the lock cylinder further configured to be twisted about a longitudinal axis of the lock cylinder and the cylinder housing between an opening position and a closing position in the cylinder housing;
• the lock cylinder includes a collar which protrudes radially with respect to the longitudinal axis and beyond a jacket surface of the lock cylinder, the lock cylinder further includes an opening into which an unlocking element is configured to be inserted;
• the jacket surface includes an annular groove into which a locking element engages to secure the lock cylinder in the cylinder housing;
• an axial stop is integrally attached in an interior of the cylinder housing and through which stop a base region of the locking cylinder extends, which base region is remote from the collar;
• the locking element encloses a jacket of the lock cylinder and rests in a recess provided on a side of the axial stop which faces away from the collar;
• the locking element is held in a spring-loaded manner in a locked position and engages in the annular groove, the locking element being displaceable by the unlocking element against a force of a spring out of the annular groove into a release position in which the lock cylinder is removable from the cylinder housing;
• wherein the locking element includes an inner edge having a locking collar on a side opposite of the press-in bevel, which locking collar rests in the annular groove in the locked position of the locking element;
• and
• wherein an outer contour of the locking element is arranged in a square manner, with the locking element being fixed at a first corner to the cylinder housing in a spring-loaded manner and corners adjacent to the first corner being arranged in a flattened manner as a sliding guide, and an inner contour of the recess of the axial stop is shaped according to an outer contour of the locking element, with a width of the inner contour of the recess corresponding to a width of the locking element plus a maximum width of the locking collar of the locking element.