CN205364943U - Novel combination teaching aid - Google Patents
Novel combination teaching aid Download PDFInfo
- Publication number
- CN205364943U CN205364943U CN201521037042.9U CN201521037042U CN205364943U CN 205364943 U CN205364943 U CN 205364943U CN 201521037042 U CN201521037042 U CN 201521037042U CN 205364943 U CN205364943 U CN 205364943U
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- CN
- China
- Prior art keywords
- ruler
- teaching aid
- protractor
- utility
- novel compositions
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- 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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Abstract
The utility model relates to a novel combination teaching aid, it comprises first ruler, second ruler, third ruler, protractor, a chalk section of thick bamboo, its structural design is reasonable, and novel structure is unique, has realized ruler, teacher's pointer, compasses, protractor, the ingenious combination of the multiple teaching aid of set -square, has multiple deformation, multiple functions, and easy dismouting, it is all very convenient to use, carry, and the usage is extensive.
Description
Technical field
This utility model relates to a kind of instructional device, particularly relates to a kind of mathematical education combination apparatus.
Background technology
In present teaching process, typically require and carry out the different straightway of picture length with ruler or measure length, the different circle of picture radius and camber line is come with compasses, carry out picture vertical line with set square, measure angle etc. with protractor, due to ruler, compasses, set square, protractor function all more single, need when graphing to change one by one or more than one piece combination used, just can draw the various different figure required, use, carry very inconvenient, greatly reduce the efficiency of teaching.
Utility model content
Main purpose of the present utility model is in that the shortcoming overcoming prior art is with not enough, it is proposed to a kind of novel compositions teaching aid.
For solving the problems referred to above, this utility model be the technical scheme is that
A kind of novel compositions teaching aid, it is made up of the first ruler, the second ruler, the 3rd ruler, protractor, chalk barrel, and three rulers have length scale line；One end of first ruler is a cylindrical chalk barrel；The length of the second ruler and the first ruler is identical, and the upper end of described second ruler is linked together by bolt and the first ruler, protractor, and the lower end of described second ruler is linked together by bolt and the 3rd ruler；Being hinged between described each ruler, the 3rd ruler and the first ruler couple together and constitute an isosceles right triangle；A set of multi-functional combined appliance for teaching is may be constructed by various combination.
Of the present utility model it is characterized by: movable bolt makes a whole set of teaching aid both easily disassembled, easily assembles again, and the chalk barrel at the first ruler loads onto chalk, just obtains width compasses after the second ruler and the 3rd ruler being folded；3rd ruler and the first ruler are coupled together and can serve as a set square use；First ruler, the second ruler, the 3rd ruler are all stretched and be formed for a ruler；It is formed for a teacher's pointer by all folding to the first ruler, the second ruler, the 3rd ruler；Second ruler and the 3rd ruler are folded and is fixed on the first ruler and the protractor of the second ruler junction, along with stretching of angle, it is possible to measure and draw out arbitrarily angled.
As preferably, described first ruler having the circular aperture that multiple diameter is identical, spacing is equal, one end of described 3rd ruler is wedge angle foot, the wedge angle foot of the 3rd ruler is inserted first aperture of described first ruler, constitutes an isosceles right triangle.
As preferably, described 3rd ruler top is provided with the sucker in the fixing center of circle of a convenience.
As preferably, the junction point of described first ruler and described second ruler is provided with telescopic winding, for being overlapped mutually between described first ruler, the second ruler, protractor, winding.
A kind of concrete prioritization scheme is: the circular aperture that on the first ruler, multiple diameters are identical, spacing is equal, the wedge angle foot of the 3rd ruler is put into different apertures and can be obtained by difform triangle.It is used for demonstrating various difform triangle, containing acute triangle, right angled triangle, obtuse triangle, isosceles triangle.
A kind of concrete prioritization scheme is: has length scale line on each ruler, can be used to picture straight line and measure length of straigh line.
A kind of concrete prioritization scheme is: there is a sucker on the top of the 3rd ruler, is used for determining the center of circle, and one end of the first ruler is a cylindrical chalk barrel, equipped with chalk, for picture circle and camber line.
A kind of concrete prioritization scheme is: the junction point at the first ruler and the second ruler even loads onto telescopic winding, and with the extension of angle, the measurement of angle will be more accurate, becomes apparent from.
This utility model compared with prior art, has the following advantages and beneficial effect:
Effect of the present utility model is that this set combined appliance for teaching can by ruler, teacher's pointer, protractor, the ingenious combination of the multiple teaching aid of set square, and structure is very simple；By increase on the first ruler equidistant aperture and change the 3rd ruler shape, it is achieved have various deformation, several functions, it is easy to dismounting, use, carry all very convenient, of many uses；This set combined appliance for teaching can be used as survey tool, drawing tools.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model, in Fig. 1, and 1 first ruler, 2 chalk barrels, 3 the 3rd rulers, 4 second rulers, 5 bolts, 6 suckers, 7 protractors；
Accompanying drawing 2 is ruler constitutional diagram of the present utility model；
Accompanying drawing 3 is teacher's pointer constitutional diagram of the present utility model；
Accompanying drawing 4 is protractor constitutional diagram of the present utility model；
Accompanying drawing 5 is set square constitutional diagram of the present utility model；
Accompanying drawing 6 is compasses constitutional diagram of the present utility model.
Detailed description of the invention
For making goal of the invention of the present utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Embodiment 1
As it is shown in figure 1, this utility model combined appliance for teaching, including 1 first ruler, 2 chalk barrels, 3 the 3rd rulers, 4 second rulers, 5 bolts, 6 suckers, 7 protractor compositions, become the teaching aid of difference in functionality by movable bolt structure.
Fix with bolt as in figure 2 it is shown, described first ruler, the second ruler, the 3rd ruler stretch after extending, each ruler has length scale line, it is possible to for straight line and the length measuring straightway of picture different length.
As it is shown on figure 3, described first ruler, the second ruler, the 3rd ruler all fold, it is possible to be used as teacher's pointer and use.
As shown in Figure 4, the second ruler and the 3rd ruler fold and form a protractor with the first ruler and protractor, it is possible to measure and draw out arbitrarily angled.
Embodiment 2
The present embodiment except following characteristics other structures with embodiment 1:
As it is shown in figure 5, there is multiple circular aperture on described first ruler, and the spacing of each circular aperture is equal,
Described 3rd ruler has one end to be wedge angle foot, the wedge angle foot of the 3rd ruler is put into different apertures and can be obtained by difform triangle.It is used for demonstrating various difform triangle, containing acute triangle, right angled triangle, obtuse triangle, isosceles triangle.
As shown in Figure 6, described first ruler one end is equipped with the chalk barrel of chalk, and there is a sucker on the top of the 3rd ruler, is used for determining the center of circle, after they being connected with movable bolt, can be used to the angle that the different circle of picture radius, camber line are different with angle.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent replacement and improvement etc. made within spirit of the present utility model and principle, should be included within protection domain of the present utility model.
Claims (6)
1. a novel compositions teaching aid, it is characterised in that: include the first ruler, the second ruler, the 3rd ruler, protractor, chalk barrel；
The upper end of described second ruler is linked together by bolt and the first ruler, protractor, and the lower end of described second ruler is linked together by bolt and the 3rd ruler；
Described first ruler, the second ruler, the 3rd ruler are labeled with length scale line；
One end of described first ruler connects chalk barrel；
The length of described second ruler and the first ruler is identical.
2. novel compositions teaching aid according to claim 1, it is characterized in that: described first ruler is arranged with the circular aperture that multiple diameter is identical, spacing is equal, one end of described 3rd ruler is wedge angle foot, the wedge angle foot of the 3rd ruler inserts first aperture of described first ruler, constitutes an isosceles right triangle.
3. novel compositions teaching aid according to claim 1, it is characterised in that: also include the sucker being arranged on described 3rd ruler top.
4. novel compositions teaching aid according to claim 1, it is characterised in that: it is also equipped with winding in the junction of described second ruler and the first ruler.
5. novel compositions teaching aid according to claim 4, it is characterised in that: for being overlapped mutually between described first ruler, the second ruler, protractor, winding.
6. novel compositions teaching aid according to claim 1, it is characterised in that: it is hinged between described each ruler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521037042.9U CN205364943U (en) | 2015-12-14 | 2015-12-14 | Novel combination teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521037042.9U CN205364943U (en) | 2015-12-14 | 2015-12-14 | Novel combination teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205364943U true CN205364943U (en) | 2016-07-06 |
Family
ID=56280562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521037042.9U Expired - Fee Related CN205364943U (en) | 2015-12-14 | 2015-12-14 | Novel combination teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205364943U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107160919A (en) * | 2017-05-19 | 2017-09-15 | 长江大学 | Multifunctional mathmatical teaching ruler |
| CN107953702A (en) * | 2017-11-19 | 2018-04-24 | 梁朝光 | Four-in-one learns stationery |
| CN109203788A (en) * | 2017-11-27 | 2019-01-15 | 张坤浪 | A kind of multiduty mathematics teaching aid |
-
2015
- 2015-12-14 CN CN201521037042.9U patent/CN205364943U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107160919A (en) * | 2017-05-19 | 2017-09-15 | 长江大学 | Multifunctional mathmatical teaching ruler |
| CN107953702A (en) * | 2017-11-19 | 2018-04-24 | 梁朝光 | Four-in-one learns stationery |
| CN109203788A (en) * | 2017-11-27 | 2019-01-15 | 张坤浪 | A kind of multiduty mathematics teaching aid |
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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: 20160706 Termination date: 20161214 |