CN204955847U - Division line chi such as line segment for mathematical education - Google Patents
Division line chi such as line segment for mathematical education Download PDFInfo
- Publication number
- CN204955847U CN204955847U CN201520757189.9U CN201520757189U CN204955847U CN 204955847 U CN204955847 U CN 204955847U CN 201520757189 U CN201520757189 U CN 201520757189U CN 204955847 U CN204955847 U CN 204955847U
- Authority
- CN
- China
- Prior art keywords
- ruler
- positioning screw
- equant
- chi
- line segment
- 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
Links
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- Drawing Aids And Blackboards (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a division line chi such as line segment for mathematical education belongs to teaching aid technical field, including the ruler be equipped with the scale on the ruler one side of ruler is equipped with the spout be equipped with two and the communicating rectangular hole of spout on the ruler be equipped with branch chis such as a plurality of in the spout, lie in the partition chi and the ruler stationary phase of ruler high order end are connected, and be together articulated through two the same connecting rods between per two adjacent partition chis, is lieing in be equipped with the positioning screw on the partition chi of ruler low order end, the positioning screw is located the rectangular hole the top cooperation of positioning screw is equipped with set nut, the utility model discloses marking off speed piece has improved the teaching efficiency, and it is accurate to rule, and the precision of line segment partition is high.
Description
Technical field
The utility model relates to teaching aid technical field, especially a kind of mathematical education line bisection marking-out rule.
Background technology
In the teaching of mathematics, relate to the decile of line segment, namely straight line section is divided into some parts, at present, for the decile of line segment, general employing ruler or compasses, when adopting ruler, needing first to draw line segment, then measuring by the data that ruler marks, on line segment, drawing short-term according to the length measured; Also or adopt compasses, is separated by the bipod of compasses, make the segmentation length of the Distance positioning line segment between compasses bipod, then successively measure with compasses, the deficiency of these two kinds of line bisection methods is: one be speed slowly, affect efficiency of teaching; Two is that line is not accurate enough, and the precision of line bisection is not high.
Summary of the invention
Technical assignment of the present utility model is a kind of mathematical education line bisection marking-out rule provided for above the deficiencies in the prior art.
The utility model solves the technical scheme that its technical problem adopts: a kind of mathematical education line bisection marking-out rule, comprise ruler, described ruler is provided with scale, chute is provided with in the side of described ruler, described ruler is provided with two rectangular openings communicated with chute, several Equant rulers are provided with in described chute, the Equant ruler and the ruler that are positioned at described ruler high order end are connected to a fixed, hinged by two identical connecting rods between every two adjacent Equant rulers, the Equant ruler being positioned at described ruler low order end is provided with positioning screw, described positioning screw is positioned at rectangular opening, coordinate on the top of described positioning screw and be provided with setscrew nut, a rectangular opening near scale can estimate the position of Equant ruler intuitively, an other rectangular opening is to enable positioning screw slide with Equant ruler.
The utility model has the advantage of: 1, the utility model is simply rational in infrastructure, easy to operate, decile line segment speed is fast, improves efficiency of teaching; 2, the utility model line accurately, and the precision of line bisection is high, convenient and practical.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the sectional view in A-A direction in Fig. 1.
Detailed description of the invention
Below in conjunction with Figure of description, the utility model is described below.
As depicted in figs. 1 and 2, a kind of mathematical education line bisection marking-out rule, comprise ruler 1, described ruler 1 is provided with scale, chute is provided with in the side of described ruler 1, described ruler 1 is provided with two rectangular openings communicated with chute 2, several Equant rulers 3 are provided with in described chute, the Equant ruler 3 being positioned at described ruler 1 high order end is connected to a fixed with ruler 1, hinged by two identical connecting rods 4 between every two adjacent Equant rulers 3, the Equant ruler 3 being positioned at described ruler 1 low order end is provided with positioning screw 6, described positioning screw 6 is positioned at rectangular opening 2, coordinate on the top of described positioning screw 6 and be provided with setscrew nut 5, a rectangular opening 2 near scale can estimate the position of Equant ruler 3 intuitively, an other rectangular opening 2 is to make positioning screw 6 can slide with Equant ruler 3.First a line segment is drawn with ruler 1 during use, then the Equant ruler 3 being positioned at ruler 1 high order end is alignd with the left end point of line segment, again according to the number slip Equant ruler 3 wanting decile, if such as by line segment five decile, slide and be positioned at the Equant ruler 3 of ruler 1 low order end, make to align with the right endpoint of line segment from left end number six roots of sensation Equant ruler 3, and the setscrew nut 5 of low order end Equant ruler 3 and positioning screw 6 are tightened make it maintain static, finally draw decile line segment with pen along Equant ruler 3.
Claims (1)
1. a mathematical education line bisection marking-out rule, comprise ruler, described ruler is provided with scale, it is characterized in that: be provided with chute in the side of described ruler, described ruler is provided with two rectangular openings communicated with chute, several Equant rulers are provided with in described chute, the Equant ruler and the ruler that are positioned at described ruler high order end are connected to a fixed, hinged by two identical connecting rods between every two adjacent Equant rulers, the Equant ruler being positioned at described ruler low order end is provided with positioning screw, described positioning screw is positioned at rectangular opening, coordinate on the top of described positioning screw and be provided with setscrew nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520757189.9U CN204955847U (en) | 2015-09-29 | 2015-09-29 | Division line chi such as line segment for mathematical education |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520757189.9U CN204955847U (en) | 2015-09-29 | 2015-09-29 | Division line chi such as line segment for mathematical education |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204955847U true CN204955847U (en) | 2016-01-13 |
Family
ID=55050935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520757189.9U Expired - Fee Related CN204955847U (en) | 2015-09-29 | 2015-09-29 | Division line chi such as line segment for mathematical education |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204955847U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109130627A (en) * | 2018-08-20 | 2019-01-04 | 西安工程大学 | It is a kind of for drawing the drawing tool of bisector and parallel lines |
-
2015
- 2015-09-29 CN CN201520757189.9U patent/CN204955847U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109130627A (en) * | 2018-08-20 | 2019-01-04 | 西安工程大学 | It is a kind of for drawing the drawing tool of bisector and parallel lines |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20160929 |