A multifunctional compass

Abstract

The invention discloses multifunctional compasses. The multifunctional compasses comprise a base body, a first groove, a drive mechanism, a first gear, a second gear, a first fixing mechanism, a second fixing mechanism, a reading mechanism, a first landing leg, a second landing leg, a positioning needle, a handle, a second groove, a rotating shaft and a rotary table. The lower end of the base bodyis provided with the first groove, the first groove is internally provided with the first gear and the second gear, the first gear and the second gear are connected in an engaged manner, the lower end of the first gear is provided with the first landing leg, the lower end of the second gear is provided with the second landing leg, the lower end of the first landing leg is provided with the fixingmechanisms which can fix a drawing pen or a refill, and the lower end of the second landing leg is provided with a second groove and the rotating shaft passing through the second groove. Compared with the prior art, the multifunctional compasses can be convenient to use and good in reliability, the adaptability is improved, and the angle of the positioning needle can be conveniently adjusted.

Description

【Technical field】 [0001] The invention relates to the technical field of school supplies, in particular to the technical field of a multifunctional compass. 【Background technique】 [0002] Compass is a tool used to draw circles and arcs, and it is one of the indispensable tools in our office and study. It is composed of two parts connected by a hinge, and the connecting part in the middle can be adjusted. In daily life, the common compass needs to use a ruler to measure the radius. Without a ruler, it has great limitations in making standard graphics, and in more cases, it is impossible to make graphics. [0003] At the same time, because the connecting part of the compasses is a hinge, the hinge is easy to loosen after the compass is used for a long time, and misalignment often occurs when drawing graphics, and when the angle between the legs of the two compasses is relatively large, the positioning pin is not easy to fix. When drawing, the positioning needle is easy to s...

AI Technical Summary

Problems solved by technology

In daily life, the common compasses need to use a ruler to measure the radius when making a drawing. Without a ruler, there are great limitations in making standard graphics. In more cases, it is impossible to make graphics

[0003] At the same time, because the connecting part of the compasses is a hinge, the hinge is easy to loosen after a long period of use of the compasses, and misalignment often occurs when drawing graphics, and when the angle between the legs of the two compasses is relatively large, the positioning pin is not easy to fix. The positioning needle is easy to slip when drawing, which brings inconvenience to the drawing workers

[0004] And because the existing compasses either can only be used with the drawing pen, or can only be used with the pen core, thus the applicability is low

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