The invention discloses a
microwave anechoic chamber polymorphic integration test hand wheel regulation and control lifting platform, and relates to the technical field of
microwave anechoic chamber test lifting trucks, the
microwave anechoic chamber polymorphic integration test hand wheel regulation and control lifting platform comprises a movable base, a lifting moving mechanism and a hand cranking mechanism, the hand cranking mechanism comprises a linkage shaft, a self-locking transmission mechanism rocking
handle, a
stroke measuring mechanism and an adjustable fixed-point shutdown mechanism, the linkage shaft is connected with the lifting moving mechanism in a matched mode through a self-locking transmission mechanism, and the self-locking transmission mechanism locks the lifting moving mechanism when the rocking
handle is static. When the height is adjusted through rotation of the rocking
handle, the rocking handle drives the linkage shaft to rotate, the linkage shaft enables the worm to rotate
through transmission cooperation of the first steering
bevel gear and the second steering
bevel gear, the worm drives the worm gear and the winding column to rotate, winding of the lifting
rope is achieved, and when the rocking handle is loosened or accidentally slips out of the hand, due to the self-locking effect of the worm gear and the worm, the lifting
rope is wound. At the moment, even if the lifting
rope is subjected to the
gravity effect of the main sliding base, the winding column cannot rotate reversely, and manual operation locking is not needed.