CN104044386A - Multifunctional ruler for teaching - Google Patents
Multifunctional ruler for teaching Download PDFInfo
- Publication number
- CN104044386A CN104044386A CN201310082834.7A CN201310082834A CN104044386A CN 104044386 A CN104044386 A CN 104044386A CN 201310082834 A CN201310082834 A CN 201310082834A CN 104044386 A CN104044386 A CN 104044386A
- Authority
- CN
- China
- Prior art keywords
- chute
- main body
- ruler
- ruler main
- teaching
- 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.)
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- Drawing Aids And Blackboards (AREA)
Abstract
The invention relates to a multifunctional ruler for teaching, and belongs to a teaching aid. The multifunctional ruler comprises a ruler main body, wherein scales are respectively arranged at two long edge parts of the ruler main body, a chute parallel to the long edge is formed in the ruler main body, and two sides of the chute are also provided with scales; one end, positioned inside the chute, of a scale reference line is provided with a fixing rod vertical to the ruler main body, the top end of the fixing rod is provided with a handle, and the bottom end of the fixing rod is provided with a suction disc through a rotating shaft; a movable rod capable of moving along the chute is also arranged in the chute, and the bottom end of the movable rod is provided with a chalk clamp. The multifunctional ruler has the advantages that the functions of a straight rule and compasses are integrated, in addition, the sliding of the fixing rod of the compasses is avoided, and the circle drawing efficiency is higher.
Description
Technical field
The present invention relates to a kind of teaching apparatus for mathematics, specifically a kind of Multifunctional rule for teaching.
Background technology
In mathematical education process, often need teacher to map on blackboard and assist explanation, and the most frequently used instrument of mapping is exactly ruler and compasses, current ruler and compasses are for independently individual respectively, convenient not while carrying, and the bottom of existing compasses for teaching fixed bar is also a locking pin, locking pin is easy on the surface of blackboard slide, and uses inconvenient.
Summary of the invention
The object of the present invention is to provide a kind of Multifunctional rule for teaching, this ruler integrates the function of ruler and compasses, and avoids the fixed bar of compasses to slide, and picture circle efficiency is higher.
The present invention solves the technical scheme that its technical problem takes: Multifunctional rule for teaching, comprise ruler main body, the Liang Gechang edge of described ruler main body is equipped with scale, and ruler main body is provided with a chute parallel with its long edge, and the both sides of described chute are also equipped with scale; In chute, one end of scale datum line is provided with a fixed bar vertical with ruler main body, and the top of fixed bar is provided with one handle, and the bottom of fixed bar is provided with a sucker by rotating shaft; A motion bar that can move along chute is also installed in chute, and a chalk folder is equipped with in the bottom of motion bar.
The invention has the beneficial effects as follows:
1, the function of compasses and ruler is combined, carry convenient.
2, fixed bar is fixed by sucker, and is connected by rotating shaft between fixed bar and sucker, and neither impact is drawn, and has avoided again fixed bar mobile on blackboard surface, uses convenient.
3, when motion bar moves in chute, the scale of chute both sides can directly be measured the distance between fixed bar and motion bar, i.e. radius of a circle to be painted with ruler measurement, has improved the efficiency of drawing circle without in addition.
Brief description of the drawings
Fig. 1 is front view of the present invention;
Fig. 2 is the rearview of Fig. 1.
In figure: 1 ruler main body, 2 chutes, 3 fixed bars, 4 handles, 5 motion bars, 6 suckers, 7 chalk folders.
Detailed description of the invention
As shown in Figure 1.Multifunctional rule for teaching, comprises ruler main body 1, and the Liang Gechang edge of described ruler main body 1 is equipped with scale, and ruler main body 1 is provided with a chute 2 parallel with its long edge, and the both sides of described chute 2 are also equipped with scale; One end of the interior scale datum line of chute 2 is provided with a fixed bar 3 vertical with ruler main body 1, and the top of fixed bar 3 is provided with one handle 4, and the bottom of fixed bar 3 is provided with a sucker 6 by rotating shaft; A motion bar 5 that can move along chute 2 is also installed in chute 2, and a chalk folder 7 is equipped with in the bottom of motion bar 5.
When use, ruler main body 1 can realize the measurement of ruler and draw straight line function; Need to draw bowlder, in chalk folder 7, pack the chalk of appropriate length into, mobile motion bar 5 makes it arrive the position of required radius, the circle centre position that fixed bar 3 is fixed on to circle to be painted on blackboard by sucker 6, one holds handle 4, and the hand-held firmly motion bar 5 of another makes it rotate a circle around fixed bar 3, fixed bar 3 also certainly circles under the effect of rotating shaft, can draw needed circle, easy to use, picture circle efficiency is high.
Except technical characterictic described in description, all the other technical characterictics are those skilled in the art's known technology.
Claims (1)
1. Multifunctional rule for teaching, comprises ruler main body, it is characterized in that, the Liang Gechang edge of described ruler main body is equipped with scale, and ruler main body is provided with a chute parallel with its long edge, and the both sides of described chute are also equipped with scale; In chute, one end of scale datum line is provided with a fixed bar vertical with ruler main body, and the top of fixed bar is provided with one handle, and the bottom of fixed bar is provided with a sucker by rotating shaft; A motion bar that can move along chute is also installed in chute, and a chalk folder is equipped with in the bottom of motion bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310082834.7A CN104044386A (en) | 2013-03-15 | 2013-03-15 | Multifunctional ruler for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310082834.7A CN104044386A (en) | 2013-03-15 | 2013-03-15 | Multifunctional ruler for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104044386A true CN104044386A (en) | 2014-09-17 |
Family
ID=51497969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310082834.7A Pending CN104044386A (en) | 2013-03-15 | 2013-03-15 | Multifunctional ruler for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104044386A (en) |
-
2013
- 2013-03-15 CN CN201310082834.7A patent/CN104044386A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140917 |