Roller shutter type air valve

The invention discloses a roller shutter type air valve. The air valve comprises an outer frame, a square ventilation opening, a rubber sealing air cushion sleeving the edge of the ventilation opening, a driving shaft, a driven shaft, a roller shutter, a pull rope, a pressing frame, a rotating shaft...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHEN HUAJI, GONG GENPING, ZENG TINGTING, CAI XIAOLONG, ZHONG JIAMEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	The invention discloses a roller shutter type air valve. The air valve comprises an outer frame, a square ventilation opening, a rubber sealing air cushion sleeving the edge of the ventilation opening, a driving shaft, a driven shaft, a roller shutter, a pull rope, a pressing frame, a rotating shaft, eccentric cams, a stirring mechanism, a chain and a motor, wherein one end of the roller shutter is wound around the driving shaft, one end of the pull rope is wound around the driven shaft, the pressing frame corresponds to the rubber sealing air cushion and can move in the axial direction, the two ends of the rotating shaft are arranged on the two corresponding sides of the outer frame, the eccentric cams are arranged on the positions, located on the pressing frame, of the rotating shaft ina sleeving mode, the stirring mechanism is arranged on the rotating shaft in a sleeving mode, the chain is annularly arranged between the driving shaft and the driven shaft, the motor drives the driving shaft to rotate, the e