Chain plate type device for covering soil on film

The invention relates to a chain plate type device for covering soil on a film. The chain plate type device comprises a soil lifting structure and a soil covering structure, the soil lifting structure is composed of a disc soil crusher, a chain plate and a stepping motor. The soil covering structure is composed of a soil covering box body, a soil falling amount adjusting mechanism and a soil retaining plate, wherein the soil falling amount adjusting mechanism and the soil retaining plate are installed on the box body. Soil crushed by the disc soil crusher is conveyed to the soil covering box body through the chain plate, the interval between the baffle and the bottom of the box body can be controlled by controlling the soil falling amount adjusting mechanism installed on the soil covering box body, and then the soil falling amount is controlled. Rotation of the chain plate is achieved through driving of the stepping motor, the soil falling amount is controlled by controlling the soil falling amount adjusting