Henhouse lifting door

The invention discloses a henhouse lifting door. The henhouse lifting door comprises a cylinder. The lower end of a cylinder piston rod is connected with a door plate. A distance measuring sensor is mounted at the lower end of the door plate. A signal monitored by the distance measuring sensor is se...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	YANG DASHAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY CARE OF BIRDS, FISHES, INSECTS CHECKS FOR WINGS DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION FISHING FIXED CONSTRUCTIONS FORESTRY HUMAN NECESSITIES HUNTING KEYS LOCKS NEW BREEDS OF ANIMALS REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR SAFES TRAPPING WINDOW OR DOOR FITTINGS WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING
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