CN202669304U - Multifunctional set square - Google Patents
Multifunctional set square Download PDFInfo
- Publication number
- CN202669304U CN202669304U CN 201220369780 CN201220369780U CN202669304U CN 202669304 U CN202669304 U CN 202669304U CN 201220369780 CN201220369780 CN 201220369780 CN 201220369780 U CN201220369780 U CN 201220369780U CN 202669304 U CN202669304 U CN 202669304U
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- CN
- China
- Prior art keywords
- hypotenuse
- angle
- set square
- hole
- multifunctional
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Length-Measuring Instruments Using Mechanical Means (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model provides a multifunctional set square and relates to a teaching tool which is used by a university mathematics teacher. In the university mathematics teaching, the multifunctional set square is adopted, and only with a set square, graphics such as a round, an oval, a rectangle, parallel lines and a curve are convenient to quickly draw. Meanwhile, the multifunctional set square is provided with a protractor to draw and measure an angle. The edge of an outer outline of the multifunctional set square is encircled by two straight sides and a hypotenuse, the two straight sides are respectively a long straight side and a short straight side, an included angle between the short straight side and the hypotenuse is 30 degrees, and an included angle between the long straight side and the hypotenuse is 60 degrees. The multifunctional ser square is provided with a round hole, an oval hole, a rectangle hole, a semicircle hole, two long holes which are used to draw the parallel lines and a curve hole, a scale which is used to draw and measure the angle is arranged on the edge of a circular arc shape of the semicircle hole, a scale which is used to draw and measure the angle is arranged on the straight edge of the semicircle hole and the two straight sides and the hypotenuse of the multifunctional set square. The multifunctional set square is applied to a university mathematics class.
Description
Technical field
The utility model relates to the teaching aid that a kind of College Maths teacher uses, particularly a kind of multifunctional triangle.
Background technology
At present, in the mathematical education of university, mathematics teaching aid commonly used has right angle triangle, protractor etc.Adopt above-mentioned these conventional mathematics teaching aids, can only draw the figures such as straight line, acute angle, obtuse angle and right angled triangle, if draw figures such as circle, ellipse, can only free-handly draw, make troubles to mathematical education.
Summary of the invention
The purpose of this utility model provides a kind of multifunctional triangle, use this multifunctional triangle in College Mathematics Teaching, only need a set square can draw out easily and fast the figures such as circle, ellipse, rectangle, parallel lines and curve, also can draw simultaneously the number of degrees of angle and measured angular.
Realize above-mentioned purpose, the technical scheme that the utility model is taked is:
A kind of multifunctional triangle, the outline edge of described multifunctional triangle is surrounded by two straight flanges and a hypotenuse, article two, straight flange is respectively long straight flange and short straight flange, angle between short straight flange and the hypotenuse is 30 °, angle between long straight flange and the hypotenuse is 60 °, multifunctional triangle is provided with circular port, slotted eye, rectangular opening, semi-circular hole, two slotted hole and curved slots that are used for drawing parallel lines, the radiused edges place of semi-circular hole is provided with for drawing and the graduation mark that takes measurement of an angle, and two straight flanges and a hypotenuse place of the straight edge place of semi-circular hole and multifunctional triangle are provided with respectively for drawing and measure the length graduation mark.
Described multifunctional triangle is provided with the handle of being convenient to handgrip.
The utility model with respect to the beneficial effect of prior art is: multifunctional triangle of the present utility model, a ruler can be drawn out the figures such as circle, ellipse, rectangle, parallel lines and curve easily and fast, moreover, can also draw easily and measure straight line, oblique line and angle, teaching provides convenience to math teacher.
Description of drawings
Fig. 1 is the top view of a kind of multifunctional triangle of the present utility model; Fig. 2 is the front view of Fig. 1.
Wherein, multifunctional triangle 1, circular port 2, slotted eye 3, rectangular opening 4, slotted hole 5, curved slot 6, semi-circular hole 7, long straight flange 8, hypotenuse 9, short straight flange 10, angle index line 11, length graduation mark 12, handle 13.
The specific embodiment
As shown in Figures 1 and 2, a kind of multifunctional triangle, the outline edge of described multifunctional triangle 1 is surrounded by two straight flanges and a hypotenuse 9, article two, straight flange is respectively long straight flange 8 and short straight flange 10, angle between short straight flange 10 and the hypotenuse 9 is 30 °, angle between long straight flange 8 and the hypotenuse 9 is 60 °, multifunctional triangle 1 is provided with circular port 2, slotted eye 3, rectangular opening 4, semi-circular hole 7, two slotted hole 5 and curved slots 6 that are used for drawing parallel lines, the radiused edges place of semi-circular hole 7 is provided with for drawing and the graduation mark 11 that takes measurement of an angle, and two straight flanges and hypotenuse 9 places of the straight edge place of semi-circular hole 7 and multifunctional triangle 1 are provided with respectively for drawing and measure length graduation mark 12; Described multifunctional triangle 1 is provided with the handle 13 of being convenient to handgrip.Utilize circular port 2, slotted eye 3, rectangular opening 4, two to be used for drawing the slotted hole 5 of parallel lines and curved slot 6 and can draw out circle, ellipse, rectangle, two parallel lines and curve.Semi-circular hole 7 and angle index line 11 can be drawn the reading of angle and measured angular.
Claims (2)
1. multifunctional triangle, the outline edge of described multifunctional triangle (1) is surrounded by two straight flanges and a hypotenuse (9), article two, straight flange is respectively long straight flange (8) and short straight flange (10), angle between short straight flange (10) and the hypotenuse (9) is 30 °, angle between long straight flange (8) and the hypotenuse (9) is 60 °, it is characterized in that: multifunctional triangle (1) is provided with circular port (2), slotted eye (3), rectangular opening (4), semi-circular hole (7), two slotted hole (5) and curved slots (6) that are used for drawing parallel lines, the radiused edges place of semi-circular hole (7) is provided with for drawing and the graduation mark that takes measurement of an angle (11), and two straight flanges and a hypotenuse (9) of the straight edge place of semi-circular hole (7) and multifunctional triangle (1) are located to be provided with respectively for drawing and measure length graduation mark (12).
2. a kind of multifunctional triangle as claimed in claim 1, it is characterized in that: described multifunctional triangle (1) is provided with the handle (13) of being convenient to handgrip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220369780 CN202669304U (en) | 2012-07-30 | 2012-07-30 | Multifunctional set square |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220369780 CN202669304U (en) | 2012-07-30 | 2012-07-30 | Multifunctional set square |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202669304U true CN202669304U (en) | 2013-01-16 |
Family
ID=47490234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220369780 Expired - Fee Related CN202669304U (en) | 2012-07-30 | 2012-07-30 | Multifunctional set square |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202669304U (en) |
-
2012
- 2012-07-30 CN CN 201220369780 patent/CN202669304U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20150730 |
|
| EXPY | Termination of patent right or utility model |