GREENHOUSE Russian patent published in 2023 - IPC A01G9/14 

FIELD: agriculture.

SUBSTANCE: greenhouse comprises a frame consisting of semicircular pipes, vertical pipes fastened together and with longitudinal bars. The frame is covered with a transparent film on the front and back. The greenhouse comprises an additional frame covered with a transparent film on top and sides. The additional frame has a width and height greater than the width and height of the frame, consists of semicircular pipes, vertical pipes fastened together and with longitudinal bars. The additional frame has wheels and is connected in front and behind with cables of two winches, connected respectively to a voltage source through a thermal relay and a time relay.

EFFECT: automatic ventilation of the greenhouse.

1 cl, 3 dwg