Planar four-rod combined teaching aid for magic shadow play

The utility model discloses a planar four-rod combined teaching aid for magic shadow play, comprising a first bottom pate and a second bottom plate which can be spliced. A crank and slider mechanism and a rocking handle mechanism are arranged on the first bottom plate. A crank and rocker mechanism, a double-slider mechanism, an asynchronous motor and two first bearing frames are arranged on the second bottom plate. The original mechanism is flexibly changed into another type of mechanism by changing the rod length on the basis of the original mechanism so as to achieve the effects of material saving, space saving, and one mechanism with multiple structures. The mechanism and shadow play are combined to enable the movement characteristics of the mechanism such as quick return characteristic to be reflected on body movements of shadow play, make shadow play vivid and improve students' interest in learning. Moreover, the planar four-rod combined teaching aid has the function of automatic transmission, and can em