a three-dimensional book
A technology of loading and unloading mechanism and cam mechanism, applied in the field of teaching tools, can solve the problems of inability to get classroom use, increased burden of investment, and expensive display racks, etc., and achieves high promotion and application value, vivid teaching process, and high application value. Effect
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[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0025] Such as figure 1 , 2 Shown in and 3, a kind of three-dimensional mechanism book comprises book holder 1, four-bar linkage mechanism page board 2, cam mechanism page board 3, gear coincidence degree page board 4 and gear meshing law page board 5; book holder 1 includes book splint 7 and the loose-leaf loading and unloading mechanism 6; the book splint 7 includes an integrally formed back plate 7-1 and two side plates 7-2, and the two side plates 7-2 can be turned around the back plate 7-1; the loose-leaf loading and unloading mechanism 6 and the back Plate 7-1 is connected by screw 8; loose-leaf loading and unloading mechanism 6 can be opened for loading and unloading, four-bar linkage mechanism page 2, cam mechanism page 3, gear coincidence degree page 4 and gear meshing law page 5 all pass through loose-leaf loading and unloading mechanism 6 I...
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