Spring fan

The invention discloses a spring fan, which comprises a blade, a gear, a spring box and a spring switch and is characterized in that: the spring box, the spring switch and the gear form a power device. In the spring fan, the spring, instead of a motor, is used as power, and a battery is not required...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LI XIAOYING, GUO MENGDAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	The invention discloses a spring fan, which comprises a blade, a gear, a spring box and a spring switch and is characterized in that: the spring box, the spring switch and the gear form a power device. In the spring fan, the spring, instead of a motor, is used as power, and a battery is not required to be replaced, so environmental pollution is reduced, and the use cost is reduced.