Multi-angle adjustable tank washing device

The utility model discloses a multi-angle adjustable tank washing device. Flange ring, a hollow shaft motor is fixed to the outer wall of the top end of the flange ring through bolts. The bottom end of the flange ring is screwed with a sleeve; a liquid guide pipe is inserted into the inner wall of the sleeve; a rotary spraying assembly is arranged at the end part of the liquid guide pipe; the topend of the liquid guide pipe penetrates through an output shaft of the hollow shaft motor, a limiting protruding block is arranged on the inner wall of the output shaft of the hollow shaft motor, a limiting groove matched with the limiting protruding block in specification is formed in the side wall of the liquid guide pipe, the limiting protruding block is in sliding connection with the inner wall of the limiting groove, and the top end of the side wall of the liquid guide pipe is sleeved with a spring piece. The liquid guide pipe can be driven to rotate, the rotary spraying assembly can be conveniently driven to rot