Chain-type two-purpose rolling-blind device for vegeable greenhouse

The utility model discloses a chain-style double-function curtain-rolling machine of a vegetable house. The utility model is characterized in that four legs are connected through connecting plates to form a stander; the driving axle of an electric motor connects with a power driving belt wheel which uses belts to connect with a main driven wheel; the decelerating wheel of a main driving wheel axle connects with a big belt wheel through belts; the ratchet wheel claw of a big belt wheel axle is fixed on a pin roll; a ratchet wheel axle has a small chain wheel of the ratchet wheel axle, the small chain wheel drives an agent chain wheel through agent chains, an agent chain wheel has the small chain wheel. The small chain wheel drives a curtain-rolling chain wheel, two ends of a curtain-rolling chain wheel axle have connecting holes. The utility model is characterized in that the curtain-rolling machine of the vegetable house can make the house curtain-rolling automatic and save labor.