CN101130327A - multifunctional math ruler - Google Patents
multifunctional math ruler Download PDFInfo
- Publication number
- CN101130327A CN101130327A CNA200710132566XA CN200710132566A CN101130327A CN 101130327 A CN101130327 A CN 101130327A CN A200710132566X A CNA200710132566X A CN A200710132566XA CN 200710132566 A CN200710132566 A CN 200710132566A CN 101130327 A CN101130327 A CN 101130327A
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- Prior art keywords
- ruler
- main
- straightedge
- protractor
- chute
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- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Abstract
多功能数学尺，涉及一种数学尺的结构技术。在主直尺上设置0～100等分刻度线，主直尺的前端固定连接一量角器，量角器和主直尺在同一平面上，量角器设有圆心和0°～180°的等角度刻度线，量角器的圆心与主直尺的0位相重合；在主直尺的0位铰连接一直尺，该直尺上设置与主直尺的等分刻度线相同的刻度线；在主直尺上开设一直形滑槽，所述滑槽与主直尺长度方向平行；在滑槽上通过销连接另一直尺，所述直尺设置与主直尺的等分刻度线相同的刻度线。本发明除了直尺、三角尺、量角器的各个功能，可以测量角度、画任意角度的直线、平行线、垂直线等功能外，还能直接读三角函数和直接解决勾股定理的有关问题。
The utility model relates to a multifunctional mathematical ruler, which relates to a structure technology of a mathematical ruler. Set the 0-100 equal division scale line on the main ruler, the front end of the main ruler is fixedly connected with a protractor, the protractor and the main ruler are on the same plane, and the protractor is provided with the center of the circle and the equiangular scale line of 0°-180°, The center of the protractor coincides with the 0-position of the main straightedge; the 0-position of the main straightedge is hinged to the straightedge, and the same scale line as the equal division scale line of the main straightedge is set on the straightedge; a straight line is set on the main straightedge Shape chute, described chute is parallel with main straightedge length direction; Connect another straightedge by pin on chute, and described straightedge is provided with the identical scale line of the equal division scale line of main straightedge. In addition to the various functions of ruler, triangular ruler and protractor, the present invention can measure angles, draw straight lines, parallel lines, and vertical lines at any angle, and can also directly read trigonometric functions and solve problems related to the Pythagorean theorem.
Description
Technical field
The present invention relates to a kind of structure technology of mathmatical ruler.
Background technology
At present, the chi that people use always has set square, ruler and protractor, and is well-known, each chi function singleness, or can only direct-reading length or can only the direct-reading angle.Particularly trigonometric function is very pain in the neck feelings in the epoch that do not have computer, can only table look-up; General Pythagorean theorem relates to extracting operation and bothers especially.
Summary of the invention
The object of the invention is to design a kind of multifunctional mathmatical ruler, not only can directly read length, angle, can also directly read trigonometric function and the direct relevant issues that solve Pythagorean theorem.
The present invention includes a main ruler, 0～100 evenly divided line is set on the main ruler, at the fixedly connected protractor of the front end of main ruler, protractor and main ruler are at grade, protractor is provided with the equal angles graduation mark of the center of circle and 0 °～180 °, and 0 of the center of circle of described protractor and main ruler coincides; 0 at main ruler is hinged a ruler, and the graduation mark identical with the evenly divided line of main ruler is set on the described ruler; Offer shape chute always on main ruler, described chute is parallel with main ruler length direction; On chute, connect another ruler, the graduation mark that described ruler setting is identical with the evenly divided line of main ruler by pin.
The present invention can form various right angled triangle according to three rulers and protractor, thereby directly reads sine and cosine value, also can easily calculate tangent and cotangent value, does not need complicated triangulation calculation; Equally do not need loaded down with trivial details Pythagorean theorem to calculate length and other relevant leg-of-mutton problems on the 3rd limit yet.
Read for convenience, the present invention also with ruler that the chute pin is connected outside be nested with the chi card.Determine perpendicularity crossing between two rulers by the chi card.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
The specific embodiment
As shown in Figure 1, the present invention is made up of main ruler 1, protractor 2, ruler 3,4 and chi card 5.
Offer a straight shape chute 6 on the main ruler 1, this chute 6 is parallel with the length direction of main ruler 1.
At the fixedly connected protractor 2 of the front end of main ruler 1, protractor 2 and main ruler 1 at grade, and the center of circle of protractor 2 and main ruler 10 coincides, and also can be hinged ruler 3 by bearing pin 0 of main ruler 1.On the chute 6 of main ruler 1, connect another ruler 4 by pin 7.Outside ruler 4, be nested with chi card 5.
The present invention is except each function of ruler, set square, protractor, can take measurement of an angle, draw at any angle outside the functions such as straight line, parallel lines, vertical line, and salient point is can be used as trigonometric function chi and Pythagorean theorem chi, and brief introduction is as follows:
The trigonometric function chi: with main ruler 1 is hypotenuse, fixed length 100, ruler 3 are around the left end rotation of main ruler 1 arbitrarily angled (its angle is determined by protractor 2), and maintenance and ruler 4 vertical (being determined by chi card 5), this moment, the reading of ruler 3 was cosine value, and the reading of ruler 4 is sine value.
As Fig. 1, the angle between main ruler 1 and the ruler 3 is 30 °, then:
cos30°＝sin60°＝86.6/100＝0.866
cos60°＝sin30°＝50/100＝0.5
Can calculate tangent value and cotangent value easily equally.
The Pythagorean theorem chi: the chute 6 along main ruler 1 moves ruler 4, the reading that makes main ruler 1 is hypotenuse long (can satisfy various numerical value according to a certain percentage), rotate ruler 3 and ruler 4, and remain that they are orthogonal, if so wherein the reading of a chi is the numerical value of a known right-angle side, then the reading of another chi is the numerical value of another right-angle side, need not by square and the complex calculation of evolution etc., very convenient.As a same reason, can solve the relevant issues of arbitrary triangle similarly, not enumerate one by one here.
Claims (2)
1. multifunctional mathmatical ruler, comprise a main ruler, 0～100 evenly divided line is set on the main ruler, it is characterized in that at the fixedly connected protractor of the front end of main ruler, protractor and main ruler are at grade, protractor is provided with the equal angles graduation mark of the center of circle and 0 °～180 °, and 0 of the center of circle of described protractor and main ruler coincides; 0 at main ruler is hinged a ruler, and the graduation mark identical with the evenly divided line of main ruler is set on the described ruler; Offer shape chute always on main ruler, described chute is parallel with main ruler length direction; On chute, connect another ruler, the graduation mark that described ruler setting is identical with the evenly divided line of main ruler by pin.
2. according to the described multifunctional mathmatical ruler of claim 1, it is characterized in that with ruler that the chute pin is connected outside be nested with the chi card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710132566XA CN101130327A (en) | 2007-09-19 | 2007-09-19 | multifunctional math ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710132566XA CN101130327A (en) | 2007-09-19 | 2007-09-19 | multifunctional math ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101130327A true CN101130327A (en) | 2008-02-27 |
Family
ID=39127789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710132566XA Pending CN101130327A (en) | 2007-09-19 | 2007-09-19 | multifunctional math ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101130327A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101837705A (en) * | 2010-04-16 | 2010-09-22 | 扬州大学 | Multifunctional angulometer |
| CN102320203A (en) * | 2011-09-09 | 2012-01-18 | 黄淞 | Combined engineering ruler |
| CN102628666A (en) * | 2011-12-28 | 2012-08-08 | 冯耿 | Measurement and calculation ruler |
| CN102908148A (en) * | 2012-10-17 | 2013-02-06 | 夏和桃 | Orthopedic measuring scale and application method thereof |
| CN103879205A (en) * | 2014-04-08 | 2014-06-25 | 张松吉 | Multifunctional polar coordinate instrument |
| CN105291654A (en) * | 2015-12-01 | 2016-02-03 | 上海市第一中学 | Folding-type multifunctional measuring scale |
| CN106313971A (en) * | 2016-08-29 | 2017-01-11 | 王美琴 | Multifunctional teaching aid |
| CN106335306A (en) * | 2016-08-30 | 2017-01-18 | 武汉米拉奇商贸有限公司 | Fixed-scale pantograph for architectural drawing |
| CN109900184A (en) * | 2019-04-08 | 2019-06-18 | 中建八局轨道交通建设有限公司 | Section of jurisdiction faulting of slab ends measuring equipment and method |
| US10775146B1 (en) | 2018-09-25 | 2020-09-15 | David Moss | Distance measurement device |
| CN117854358A (en) * | 2023-04-18 | 2024-04-09 | 丁银杰 | Trigonometric function scale |
-
2007
- 2007-09-19 CN CNA200710132566XA patent/CN101130327A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101837705A (en) * | 2010-04-16 | 2010-09-22 | 扬州大学 | Multifunctional angulometer |
| CN102320203A (en) * | 2011-09-09 | 2012-01-18 | 黄淞 | Combined engineering ruler |
| CN102628666A (en) * | 2011-12-28 | 2012-08-08 | 冯耿 | Measurement and calculation ruler |
| CN102628666B (en) * | 2011-12-28 | 2015-06-10 | 冯耿 | Measurement and calculation ruler |
| CN102908148A (en) * | 2012-10-17 | 2013-02-06 | 夏和桃 | Orthopedic measuring scale and application method thereof |
| CN103879205B (en) * | 2014-04-08 | 2016-02-03 | 张松吉 | Multi-functional polar coordinates instrument |
| CN103879205A (en) * | 2014-04-08 | 2014-06-25 | 张松吉 | Multifunctional polar coordinate instrument |
| CN105291654A (en) * | 2015-12-01 | 2016-02-03 | 上海市第一中学 | Folding-type multifunctional measuring scale |
| CN106313971A (en) * | 2016-08-29 | 2017-01-11 | 王美琴 | Multifunctional teaching aid |
| CN106335306A (en) * | 2016-08-30 | 2017-01-18 | 武汉米拉奇商贸有限公司 | Fixed-scale pantograph for architectural drawing |
| CN106335306B (en) * | 2016-08-30 | 2018-07-06 | 成都长源建筑设计研究院有限公司 | A kind of certainty ratio pantograph for architectural drawing |
| US10775146B1 (en) | 2018-09-25 | 2020-09-15 | David Moss | Distance measurement device |
| CN109900184A (en) * | 2019-04-08 | 2019-06-18 | 中建八局轨道交通建设有限公司 | Section of jurisdiction faulting of slab ends measuring equipment and method |
| CN109900184B (en) * | 2019-04-08 | 2024-04-12 | 中建八局轨道交通建设有限公司 | Segment dislocation measuring device and method |
| CN117854358A (en) * | 2023-04-18 | 2024-04-09 | 丁银杰 | Trigonometric function scale |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |