Multifunctional mathematics teaching ruler
A multi-functional and mathematical technology, applied in printing, writing utensils, etc., can solve problems such as laboriousness and affecting the quality of drawing, and achieve the effect of improving the accuracy of graphics drawing
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[0039] Embodiment Multifunctional mathematics teaching ruler
[0040] refer to Figure 1-Figure 6, the present embodiment includes a positioning bracket 20, a laser bracket 65 is installed on the top of the positioning bracket 20, several laser emitting modules 56 are installed on the bottom of the laser bracket 65, and the stable rotation geometric superposition device including a fixed frame 51 is installed on the middle of the positioning bracket 20, The top of fixed frame 51 connects two upper large-scale bearings 52, and the central axis of two upper large-scale bearings 52 is collinear, and the outer ring of large-scale bearing 52 is connected with fixed frame 51, and the inner ring of large-scale bearing 52 connects spring clip 53, and spring clip 53 is provided with a light-transmitting plate 54, which is connected with an opaque geometric figure rod 64, and the bottom of the positioning bracket 20 is installed with an angle rotation positioning plotter, and the angle ...
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