Multifunctional teaching ruler

一种多功能教学尺

  • Inventors: JING XIANWEI
  • Assignees: 景宪伟
  • Publication Date: September 05, 2012
  • Publication Number: CN-202413124-U

Abstract

本实用新型公开了一种多功能教学尺,涉及一种教学中使用的教具,由主尺(1)、附尺(2)构成,主尺(1)为不透明尺,附尺(2)为透明尺,主尺(1)和附尺(2)由转轴(4)连接,转轴(4)固定在主尺(1)的左端,附尺(2)绕转轴(4)转动,转轴(4)的上端设有紧固的螺帽(7),主尺(1)靠近转轴(4)的一端设有半圆仪(3),主尺(1)、附尺(2)和半圆仪(3)上都标有刻度,并具有共同的零点;附尺(2)上设有2-3个粉笔安装孔(5);型集直尺、三角尺和半圆仪的功能于一身,能够完成直线、三角形、弧形、圆等多种图形的制作,结构简单、制作容易、携带和使用方便;可供数学、制图、技术培训等多门类教师教学使用。
The utility model discloses a multifunctional teaching ruler, relating to a teaching aid used during teaching. The multifunctional teaching ruler comprise a main ruler (1) and an auxiliary ruler (2), wherein the main ruler (1) is an opaque ruler, the auxiliary ruler (2) is a transparent ruler, the main ruler (1) and the auxiliary ruler (2) are connected with a rotation shaft (4) which is fixed at the left end of the main ruler (1), the auxiliary ruler (2) rotates around the rotation shaft (4), the upper end of the rotation shaft (4) is provided with a fastened screw cap (7), one end of the main ruler (1), close to the rotation shaft (4), is provided with a graphometer (3), the main ruler (1), the auxiliary ruler (2) and the graphometer (3) are all marked with scales and share a same null point, and the auxiliary ruler (2) is provided with 2-3 chalk mounting holes (5). The multifunctional teaching ruler integrates the functions of a straight ruler, a set square and the graphometer, can be used for completing the drawing of straight lines, triangles, arcs, circles and various other graphs, is simple in structure, easy to make and convenient to carry and use, and can be used by teachers of mathematics, drawing, technical training and various disciplines for teaching.

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