A lifting bar structure and a lighting device including lifting bar structure
The utility model discloses a lifting bar structure and a lighting device including lifting bar structure, including the diaphragm, the upper end of the lower extreme left part fixed connection pole setting of diaphragm, the upper end left part of the right part lower extreme fixed connection plecta...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses a lifting bar structure and a lighting device including lifting bar structure, including the diaphragm, the upper end of the lower extreme left part fixed connection pole setting of diaphragm, the upper end left part of the right part lower extreme fixed connection plectane of a two angle lever spare, the lower extreme fixed connection gear motor's of lifter upside leftpart, gear motor fixed mounting is at retention plate's upper end right part, the right -hand member of the first friction disc of left end fixed connection of square piece, first friction disc frictional connection second friction disc, the right -hand member of the left end middle part fixed connection loose axle of second friction disc. Press from the lock -switch, gear motor reverses, and drive the straight -teeth gear and upwards roll along the pinion rack, limiting plate conflict travel switch's contact, gear motor stops the operation, conveniently changes the height of shot -light then, reciprocates the right |
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