Electric curtain top mechanism with patting type dust removal mechanism
An electric and curtain technology, applied in the field of teaching aids, can solve the problems of service life discount, accumulation of large dust, affecting the anti-reflection ability of the surface of the curtain, and achieve the effect of improving the surface cleanliness and prolonging the service life.
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[0015] Embodiment: The entire eccentric wheel 11 is driven to rotate through the rotation of the horizontal auxiliary rotating shaft 3, and the eccentric wheel 11 collides with the projection screen 4 to make the projection screen 4 vibrate, and then the small vacuum centrifugal pump 7 absorbs dust through the upper end of the horizontal dust suction tube 12. Port 13 sucks the slapped dust, and finally blows the dust into the dust box 8, so as to achieve the purpose of electric dust removal. The small vacuum centrifugal pump 7 and slow motor 9 of the whole equipment are connected by the internal power supply connection line and the power supply at the left end. The connecting wire 15 is connected in series, and then a manual or wireless switch is used on the series circuit to control the small vacuum centrifugal pump 7 and the slow motor 9 synchronously.
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