Airtight door automatic opening and closing device

The utility model discloses an airtight door automatic opening and closing device which comprises a first hydraulic driving assembly, a hydraulic cylinder of the first hydraulic driving assembly is connected with a fixed object, and a piston rod of the first hydraulic driving assembly is connected w...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHAO ZHEN'AI, ZHANG TAO, YIN LINTONG, SONG BAILI, JIANG XINCHENG, GENG YUNTENG, CAO GUANGHAI, LIU JIUZHOU, JIAN GUANGLEI, WANG BIN, LIU CHANGFU, SUN HU, GUO YUNLIANG, MENG LINGYI, WANG QUANYONG, YANG ZUNSHENG, WANG FENG, CHEN GUOCHENG, MA ZHENHAI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACCESSORIES THEREFOR BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS ORWINDOWS CHECKS FOR WINGS DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FIXED CONSTRUCTIONS HANDCUFFS KEYS LOCKS PICTORIAL COMMUNICATION, e.g. TELEVISION SAFES WINDOW OR DOOR FITTINGS WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING
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