Shallow scarifier for planting row spacing of sorghum

The utility model relates to a sorghum planting line spacing shallow scarifier which comprises a scarifier body, a bottom plate is fixedly installed on the bottom face of the scarifier body, a fixing groove is formed in the center of the bottom face of the bottom plate, a fixing frame is arranged under the bottom plate, and a scarifying motor is fixedly installed in the center of the bottom of the right side of the fixing frame. A soil loosening assembly used for loosening soil is arranged on an output shaft of the soil loosening motor, grooves are formed in the four corners of the top face of the fixing frame, telescopic rods used for improving the stability of the fixing frame are fixed in the grooves, and an auxiliary groove is formed in the center of the top face of the fixing frame. A double-shaft motor can drive a threaded rod to rotate and drive two movable blocks to move towards the opposite sides, the height of a fixing frame is adjusted through two hinge rods in the moving process, so that the heigh