The utility model discloses a tool ruler for mathematics, including the main ruler and the auxiliary ruler and a rotary rod, the main ruler and the auxiliary ruler are arranged on the scale, the main ruler is provided with a through hole in the middle, through holes are arranged in the slide end of the auxiliary ruler is provided with a slide, slide back and forth in the hole. The back of the slider is provided with a circular hole, circular hole is arranged in the rotating shaft is connected with the rotating rod shaft, with a semi-circular hole of the main ruler back, protractor scales are carved around half circular hole. The utility model has the advantages of simple structure, convenient operation, through the main scale and the auxiliary scale with each other between the measurement precision, the slider can slide back and forth in the hole, used to measure the length of a straight line, no error; according to the needs of the vice ruler detachment and combination, when the auxiliary ruler is when removed, the main ruler can be separately used to choose diversification; the semicircular holes set back, can measure the measured object angle, convenient and precise angle measurement.
【技术实现步骤摘要】
一种数学用工具尺
本技术涉及一种尺,尤其涉及一种数学用工具尺。
技术介绍
直尺也有人称为间尺,用来测量长度和作图。直尺广泛应用于数学,测量,工程等学科,具有精确直线棱边的尺形量规。直尺用于以光隙法进行直线度测量和平面度测量,也可与量块一起,用于检验长度尺寸测量前,用量块组成两组尺寸,一组等于凸台高度尺寸公差的最大极限尺寸,另一组等于最小极限尺寸。如果用前者检验,直尺棱边与凸台表面接触处透光;而用后者检验时,直尺棱边与量块测量面接触处透光,则表示凸台高度尺寸合格。直尺常用滚动轴承钢制造。直尺也有人称为间尺,是一种非常常用的计量长度仪器,这种文具极为普遍,几乎每位小学生都人手一把,通常用于量度较短的距离或画出直线。但是现有的直尺功能比较但是,只能用于测量长度,不能测量角度,如果需要测量角度的话需要用到另外的测量工具,操作时比较繁琐,携带不方便。因此,为解决上述问题,特提供一种新的技术方案。
技术实现思路
本技术提供一种功能多样的数学用工具尺。本技术采用的技术方案是:一种数学用工具尺,包括主尺、副尺和转动杆,所述主尺和副尺上均设有刻度,所述主尺中部开有通孔,在通孔内开有滑轨,所 ...
【技术保护点】
一种数学用工具尺,其特征在于:包括主尺、副尺和转动杆,所述主尺和副尺上均设有刻度,所述主尺中部开有通孔,在通孔内开有滑轨,所述副尺的末端设置有滑块,所述滑块在通孔内来回滑动,所述滑块的背部开有圆孔,所述圆孔内设置有转轴,所述转轴与转动杆连接,所述主尺的背部开有半圆形孔,在半圆形孔周围刻有量角器刻度。
【技术特征摘要】
1.一种数学用工具尺,其特征在于:包括主尺、副尺和转动杆,所述主尺和副尺上均设有刻度,所述主尺中部开有通孔,在通孔内开有滑轨,所述副尺的末端设置有滑块,所述滑块在通孔内来回滑动,所述滑块的背部开有圆孔,所述圆孔内设置有转轴,所述转轴与转动杆连接,所述主尺的背部开有半圆形孔,在半圆形孔周围刻有量角器刻度。2.根据权利要求1所述的一种数学用工具尺,其特征在于:所述圆孔与转轴之间螺纹连接。3.根据权利要求2所述的一...
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