Device for automatically opening and closing air vent of granary

The utility model discloses a device for automatically opening and closing an air vent of a granary. An air vent barrel (5) is linked with an air vent top cover (1) through a top cover hinge (6); a connection ring (2) is connected at the part of the top cover hinge (6) on the air vent top cover (1);...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SI LINQI, LIU ZILI, QIU CHAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE FISHING FORESTRY HAY OR STRAW PRESSES HUMAN NECESSITIES HUNTING PROCESSING OF HARVESTED PRODUCE TRAPPING
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