DEVICE FOR GREENHOUSE VENTILATION Russian patent published in 2017 - IPC A01G9/24 

FIELD: agriculture.

SUBSTANCE: device for greenhouse ventilation relates to the field of agriculture and can be used mainly in areas of garden and vegetable plots and farms, remote from human habitation places, to ensure the optimum air temperature inside the greenhouse by automatically opening and closing the greenhouse doors. The device has a stationary unit with grooves along the rim circumference, installed in the greenhouse. A bucket is hung to the rim on a flexible link, the hinged connection point of the bucket handle and the bucket being located just below the gravity centre of the water-filled bucket, but above the gravity centre of the empty bucket. Ends of two cables, each of which passes through the opposite door of the greenhouse and is connected thereto by a detachable connection, are attached to the unit rim, and a counterweight is suspended at the other end of each cable surrounding the stationary unit outside the greenhouse. At the top of the device, there is a water tank with a flexible tube connecting the tank to the bucket through the water flow rate regulator. Each greenhouse door has an adjustable door opening angle adjuster.

EFFECT: such device implementation will allow to maintain the optimum temperature for plants in the automatic mode during the working week without human presence in the greenhouse.

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