Adjustable spray nozzle fixing device

The utility model discloses an adjustable spray nozzle fixing device which comprises a machine seat and an L-shaped main support vertically arranged on the machine seat. The adjustable spray nozzle fixing device is characterized in that an L-shaped auxiliary support arranged on the main support is further included, a first arc sliding groove is transversely formed in a horizontal plate of the main support, a first stud is arranged at the position, corresponding to the middle of the first arc sliding groove, of the machine seat, a second stud with the top penetrating through the horizontal plate of the main support is arranged in the first arc sliding groove, a second arc sliding groove is vertically formed in a perpendicular plate of the auxiliary support, a first nut is arranged on a perpendicular plate of the main support, a second nut capable of fastening the perpendicular plate of the auxiliary support and the perpendicular plate of the main support is arranged in the second arc sliding groove, and a spray nozzle installation hole is formed in a horizontal plate of the auxiliary support. The adjustable spray nozzle fixing device has the advantages that angles can be adjusted in the axial direction and the radial direction, and the adjustment precision is high.