The utility model belongs to the technical field of
plant aeroponic cultivation, and particularly relates to an adjustable efficient spraying device which comprises an aeroponic
bed frame, two aeroponic spraying pipes, two clamping mechanisms, a connecting mechanism, a sleeving mechanism and a plurality of bearing seats, a plurality of atomizing nozzles are arranged on the two aeroponic spraying pipes, the aeroponic spraying pipes are rotationally arranged on the aeroponic
bed frame through the bearing seats, and the clamping mechanisms are arranged on the two aeroponic spraying pipes. The clamping mechanisms are arranged on the mist spraying
pipe, the connecting mechanism is arranged on the two clamping mechanisms, a driving motor is arranged on the mist
bed frame, an output shaft of the driving motor is in key connection with a
rotating disc, and the
rotating disc is connected with one clamping mechanism through a sleeving mechanism. By means of the clamping mechanism and the connecting mechanism, the angles of the mist spraying
pipe and the spraying head can be adjusted, the mist spraying
pipe and the spraying head can move in a reciprocating mode, and therefore the covering effect of the spraying head on
plant root systems is improved, the roots of seedlings can absorb
nutrition evenly, and the spraying cultivation effect is improved.