Fuente: WIPO "circular economy" The utility model relates to the technical field of water spraying supports. The utility model relates to a bracket, in particular to a self-spraying bracket for mushroom planting. Lower supporting rod, the lower supporting rod is of a hollow tubular structure; a three-jaw support frame is arranged at the bottom end of the base; an upper supporting rod is sleeved with the upper supporting rod. Theupper supporting rod is of a tubular structure with a sealed bottom end and a through top end; water inlet is formed in one side of the outer portion of the body, the outer side of the top of the upper supporting rod is sleeved with a fixing part. A rubber ring is attached to the inner side of the fixing part; a driving motor is fixedly mounted on one side of the bottom of the fixed part; the outer side of the top of the fixing part is sleeved with a rotating part. The spraying device has the advantages that the rotating component can be driven to rotate through the driving motor, the drivinggear and the gear groove structure, the spraying pipe structure can be driven to rotate around the upper supporting rod due to the fact that the spraying pipe structure is arranged on the surface ofthe top end of the rotating component, the spraying area is enlarged, the spraying process is more uniform, and convenience is brought to planters.