Geometric drawing ruler for senior high school mathematics teaching

The utility model discloses a geometric drawing ruler for senior high school mathematics teaching. Including a stent, a transverse frame is hinged to the upper end of the support. A horizontal ruler is hinged to the lower end of the bracket; a first through groove in the horizontal direction is form...

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Bibliographic Details
Main Author FENG XIUGUO
Format Patent
LanguageChinese
English
Published 02.06.2020
Subjects
ACCESSORIES FOR WRITING OR DRAWING
ARTICLES FOR WRITING OR DRAWING UPON
BUREAU ACCESSORIES
PERFORMING OPERATIONS
TRANSPORTING
WRITING OR DRAWING IMPLEMENTS
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Summary:The utility model discloses a geometric drawing ruler for senior high school mathematics teaching. Including a stent, a transverse frame is hinged to the upper end of the support. A horizontal ruler is hinged to the lower end of the bracket; a first through groove in the horizontal direction is formed in the middle of the transverse frame. A first sliding block and a second sliding block are arranged in the first through groove, a first inclined ruler and a second inclined ruler are hinged to the bottom of the first sliding block and the bottom of the second sliding block through bolts respectively, a second through groove is formed in the middle of the horizontal ruler in the horizontal direction, and scale marks are arranged on the horizontal ruler, the first inclined ruler and the second inclined ruler. Compared with the prior art, the geometric drawing ruler for senior high school mathematics teaching has the advantages of being convenient to take, capable of drawing multi-angle parallel lines and capable
Bibliography:Application Number: CN201921171399U