Ruler
A ruler and connecting board technology, applied in the field of learning tools, can solve problems such as inconvenient use, broken hands, and missing
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[0015] The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.
[0016] See Figure 1 to Figure 3 , A ruler according to a preferred embodiment of the present invention includes a ruler body 1, a slit 2 is opened on the upper surface of the ruler body, the slit is parallel to the edge of the ruler, and both sides of the slit are respectively provided There is a guide rail 3, which extends from one end of the straightedge to the other end of the straightedge. The two guide rails are respectively provided with sliding bodies. The sliding bodies include a sliding block 4 that is slidably matched with the guide rail and an upright 5 arranged above the sliding block. The top of the outer side and the bottom of the outer side of the column are respectively provided with flanges 6,...
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