Spring self-resetting door opener

The utility model relates to the technical field of door openers, in particular to a spring self-resetting door opener. Comprising a motor, a reduction gearbox, a driving gear and a driven gear, the motor, the reduction gearbox and the driving gear are sequentially connected, and the driving gear is...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	ZHU YUNLIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING CHECKS FOR WINGS DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING KEYS LIGHTING LOCKS MECHANICAL ENGINEERING SAFES THERMAL INSULATION IN GENERAL WEAPONS WINDOW OR DOOR FITTINGS WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING
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