Novel rainproof shutter air port

The novel rainproof shutter air port comprises an outer frame, a rotating shaft and a gear, the rotating shaft is arranged in the outer frame, the gear is arranged on the outer side of the rotating shaft, the bottom of the gear is meshed with a rack, the bottom of the rack is connected with a connec...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHANG FANLI, DONG LIXIANG, SUN DONGBIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BLASTING HEATING LIGHTING MECHANICAL ENGINEERING RANGES VENTILATING WEAPONS
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