Spraying device for wheel washing machines

A spraying device (13; 100; 200; 600) for wheel washing machines (1) comprises a three-dimensional body (15; 215) which defines a longitudinal axis (A) and a longitudinal inner chamber (23) for the passage of washing liquid flows; spraying means (18; 118) formed in said three-dimensional body (15; 115) for spraying said flows out of said inner chamber (23); deflector means for deflecting the flows sprayed out of said inner chamber (23) toward a wheel (2) to be washed; said deflector means comprising at least one deflector element (19) which has at least two deflecting surfaces (20, 21) providing deflection in at least two directions, which is supported by said three-dimensional body in a longitudinal position in which said deflecting surfaces (20, 21) have said spraying means in front of them (18; 118).