CLEANING DEVICE FOR A WIPER ARM OF A WINDSCREEN WIPER SYSTEM, WIPER ARM AND A WINDSCREEN WIPER SYSTEM

The invention relates to a cleaning device (10; 10a) for a wiper arm (1) of a windscreen wiper system (100), wherein the cleaning device (10; 10a) has at least one spray nozzle (21, 22) for a cleaning liquid, wherein the cleaning device (10; 10a) is designed to form a snap connection (30) on the wiper arm (1), and wherein the snap connection (30) on the cleaning device (10; 10a) has at least one clip element in the form of an elastically designed snap element (40; 40a) which is designed to interact with a snap receptacle (54; 54a) on the wiper arm (1). According to the invention, it is provided that the cleaning device (10; 10a) has first guide means (35) which are designed to be able to rotate the cleaning device (10; 10a) about a rotation axis (37) in order to form the snap connection (30).