Geometric drawing ruler
The geometric drawing ruler comprises a ruler body, the ruler body comprises two ends, one end of the ruler body is a semicircular end, the other end of the ruler body is a rectangular end, the semicircular end of the ruler body is rotatably provided with a first geometric plate, and the rectangular...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The geometric drawing ruler comprises a ruler body, the ruler body comprises two ends, one end of the ruler body is a semicircular end, the other end of the ruler body is a rectangular end, the semicircular end of the ruler body is rotatably provided with a first geometric plate, and the rectangular end of the ruler body is detachably provided with a second geometric plate. The first geometric plate and the second geometric plate are both provided with geometric hollowed-out patterns, the ruler body is provided with through holes matched with the first geometric plate and the second geometric plate for installation, and the inner edges of the through holes are provided with grooves matched with the edges of the first geometric plate and the second geometric plate for insertion. The first geometric plate can be rotationally adjusted and used in the ruler, and the second geometric plate can be independently used and replaced, so that more pattern choices are provided, and the universality of the geometric drawi |
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