Multifunctional compass

Abstract

The invention discloses a multifunctional compass. The multifunctional compass comprises two compass legs (1) and (2) with length marks, and a countersunk locking device (3), wherein the compass leg (1) is a concave sunk groove, while the compass leg (2) is a convex insert block, and the compass leg (1) and the compass leg (2) are connected by virtue of the countersunk locking device (3); at the connection ends of the two compass legs, one connection end is provided with angle marks, while the other one connection end is provided with a pointer (4). The multifunctional compass has multiple functions, and is convenient and practical, and capable of saving time and labor.

Description

Technical field The invention relates to a compass, in particular to a multifunctional compass. Background technique In daily teaching and production, manual drawing of drawings requires a variety of tools, such as protractors, compasses, straightedges, right-angle triangles, etc. Especially when teachers are teaching, these tools must be used to teach drawing to students and bring all drawing tools. Moreover, these drawing tools generally have a relatively large size, which makes it inconvenient to carry; schools or production units need to purchase a variety of tools, which increases production costs. In the existing drawing tools, compasses must be used to draw a circle. If a circle with a certain angle needs to be drawn, the existing compasses must be matched with a ruler and a protractor to complete the work, which wastes time and manpower. In the existing production and daily teaching, a convenient and practical drawing tool is needed to complete the drawing work that ca...

AI Technical Summary

Problems solved by technology

In daily teaching and production, manual drawing of drawings requires the use of a variety of tools, such as protractors, compasses, rulers, right-angled triangles, etc., especially when teachers teach, they must use these tools to teach students to draw and bring all the drawing tools. Moreover, these drawing tools generally have a large volume, which makes it inconvenient to carry; schools or production units need to purchase multiple tools, which increases production costs

Among the existing drawing tools, compasses must be used to draw a circle. If a circle with a certain angle needs to be drawn, the existing compasses must cooperate with a ruler and a protractor to complete the work, which is a waste of time and manpower

In existing production and daily teaching, there is a need for a convenient and practical drawing tool that can complete the drawing work that the above-mentioned multiple tools can complete, but there is no report in the prior art

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