Screening clay type sand fixing and grass seeding machine

The utility model discloses a screening clay type sand fixing and grass seeding machine. A collection and conveying device, a screening device, a seeding device and a driving device are arranged on a rack, the screening device is arranged below the tail end of the collection and conveying device, and the driving device drives the collection and conveying device and the screening device; the collection and conveying device consists of a sand collection plate and a scraper plate type conveyor belt; the sand collection plate is hinged with the rack, the middle part of the sand collection plate is connected with the rack through a hydrualic rod; the tail end of the sand collection plate extends onto the scraper plate type conveyor belt; the screening device comprises multiple layers of screen and a bottom plate, the tail end of the scraper plate type conveyor belt is arranged above the uppermost layer of screen, each layer of screen is obliquely arranged, the lower end of the each layer of screen is arranged in one side of a traveling direction, and the bottom plate is arranged below the bottommost layer of screen; the seeding device further comprises a seed box and a seed conveying pipe which are communicated, and an outlet of the seed conveying pipe is arranged at the lower end of the bottommost layer of screen. By adopting a sand fixing technology by adopting a clay type sand barrier, the mechanical operation can be realized and the purposes of using local resources and permanently fixing sand with the low cost can be achieved.