Pressing device of seeding machine

The utility model provides a pressing device of a seeder, which comprises a side protecting plate, a transverse supporting plate, a connecting lug plate, a first rotating shaft, a traction pull rod, a sliding adjusting type pressing wheel soil scraping hook component, an adjusting tension spring component, a traction pull ring, an inclined supporting rod, a longitudinal supporting rod, a second rotating shaft, a hydraulic rod, a third rotating shaft, a pressing wheel, a longitudinal supporting plate, a counterweight plate and a leaking hole strip, the transverse supporting plates are connected to the front sides and the rear sides of the side protection plates through bolts correspondingly. And the first rotating shaft is embedded in the inner side of the connecting lug plate. Through the arrangement of the adjusting ring, the jacking screw and the cleaning scraping hook, the position of the cleaning scraping hook can be changed according to the difference of the number of the press wheels, so that sundries s