CN206544415U - A kind of middle-school mathematics teaching plotting unit - Google Patents
A kind of middle-school mathematics teaching plotting unit Download PDFInfo
- Publication number
- CN206544415U CN206544415U CN201621268499.5U CN201621268499U CN206544415U CN 206544415 U CN206544415 U CN 206544415U CN 201621268499 U CN201621268499 U CN 201621268499U CN 206544415 U CN206544415 U CN 206544415U
- Authority
- CN
- China
- Prior art keywords
- protractor
- main scale
- secondary ruler
- utility
- plotting unit
- 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
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a kind of middle-school mathematics teaching plotting unit, including main scale, protractor and secondary ruler, described main scale one end is provided with center of circle pilot pin, described center of circle pilot pin one end is provided with sucker, the scale surface is provided with graduation mark, and the main scale other end is provided with protractor, and the protractor surface is provided with secondary ruler, described secondary ruler one end is provided with chalk clamp, and the chalk clamp side is provided with tightening knob.The utility model passes through the graduation mark that is provided with scale surface, teacher accurately can draw on blackboard needs the straight line of length, pass through the protractor being provided with main scale one end, the angle of geometric figure can accurately be read, main scale and secondary ruler are separated by movable axis, just picture circle can be carried out on blackboard, teacher need not reduce the working strength of teacher with more instruments before at school.
Description
【Technical field】
The utility model is related to a kind of teaching aid, more particularly to a kind of middle-school mathematics teaching plotting unit.
【Background technology】
At present, teacher is during mathematical education, commonly using teaching aid it is black extremely on mapped, especially make in geometry
In figure presentation process, set square teaching aid, compass teaching aid, protractor teaching aid etc. can be used, these teaching aids are more dispersed, be needed during mapping
Change back and forth, waste the instructional blocks of time of preciousness, and considerably increase the workload of teacher.And so many teaching aids are placed simultaneously
On dais, limited space is occupied, taking for teaching aid is also not easy to, not enough neatly.Therefore, a kind of it is proposed that middle school's number
Learn teaching plotting unit.
【Utility model content】
Main purpose of the present utility model is to provide a kind of middle-school mathematics teaching plotting unit, can effectively solve background
The problem of in technology.
To achieve the above object, the technical scheme that the utility model is taken is：
A kind of middle-school mathematics teaching plotting unit, including main scale, protractor and secondary ruler, described main scale one end are fixed provided with the center of circle
Position pin, described center of circle pilot pin one end is provided with sucker, and the scale surface is provided with graduation mark, and the main scale other end is provided with angulation
Device, the protractor surface is provided with secondary ruler, and described secondary ruler one end is provided with chalk clamp, and the chalk clamp side is provided with tightening knob.
Further, the protractor and secondary ruler are flexibly connected by movable axis.
Further, the chalk clamp fastens chalk by tightening knob.
Compared with prior art, the utility model has the advantages that：The utility model in scale surface by setting
Some graduation marks, teacher accurately can draw on blackboard needs the straight line of length, passes through the angulation being provided with main scale one end
Device, can accurately read the angle of geometric figure, main scale and secondary ruler are separated by movable axis, just can be carried out on blackboard
Circle is drawn, teacher need not reduce the working strength of teacher with more instruments before at school.
【Brief description of the drawings】
Fig. 1 is a kind of overall structure diagram of middle-school mathematics teaching plotting unit of the utility model.
In figure：1st, main scale；2nd, protractor；3rd, secondary ruler；4th, chalk clamp；5th, tightening knob；6th, movable axis；7th, graduation mark；8、
Center of circle pilot pin；9th, sucker.
【Embodiment】
To be easy to understand technological means, creation characteristic, reached purpose and effect of the utility model realization, below
With reference to embodiment, the utility model is expanded on further.
As shown in figure 1, a kind of middle-school mathematics teaching plotting unit, including main scale 1, protractor 2 and secondary ruler 3, the main scale 1
One end is provided with center of circle pilot pin 8, and described one end of center of circle pilot pin 8 is provided with sucker 9, and the surface of main scale 1 is provided with graduation mark 7, institute
The other end of main scale 1 is stated provided with protractor 2, the surface of protractor 2 is provided with secondary ruler 3, described one end of secondary ruler 3 is provided with chalk clamp 4, institute
The side of chalk clamp 4 is stated provided with tightening knob 5.
A kind of middle-school mathematics teaching plotting unit of the utility model, the utility model passes through the scale that is provided with scale surface
Line, teacher accurately can draw on blackboard needs the straight line of length, passes through the protractor being provided with main scale one end, Ke Yizhun
The angle of true reading geometric figure, main scale and secondary ruler are separated by movable axis, picture circle, teacher just can be carried out on blackboard
The working strength of teacher need not be reduced before at school with more instruments.
Wherein, the protractor 2 and secondary ruler 3 are flexibly connected by movable axis 6.
Wherein, the chalk clamp 4 fastens chalk by tightening knob 5, does not fall out chalk.
It should be noted that the utility model be a kind of middle-school mathematics teaching plotting unit, teacher need picture justify when
Wait, now chalk is put into chalk clamp 4, chalk clamp 4 is fastened by tightening knob 5, then adjusted and led by movable axis 6
Sucker 9, is then fixed on blackboard by the distance before chi 1 and secondary ruler 3, and picture circle can be completed by rotating secondary ruler 3.
General principle of the present utility model and principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the utility model spirit and scope are not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within the range of claimed the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (3)
1. a kind of middle-school mathematics teaching plotting unit, including main scale (1), protractor (2) and secondary ruler (3), it is characterised in that：It is described
Main scale (1) one end is provided with center of circle pilot pin (8), and described center of circle pilot pin (8) one end is provided with sucker (9), main scale (1) surface
Provided with graduation mark (7), main scale (1) other end is provided with protractor (2), and protractor (2) surface is provided with secondary ruler (3), institute
Secondary ruler (3) one end is stated provided with chalk clamp (4), chalk clamp (4) side is provided with tightening knob (5).
2. a kind of middle-school mathematics teaching plotting unit according to claim 1, it is characterised in that：The protractor (2) and
Secondary ruler (3) is flexibly connected by movable axis (6).
3. a kind of middle-school mathematics teaching plotting unit according to claim 1, it is characterised in that：The chalk clamp (4) is led to
Cross tightening knob (5) fastening chalk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621268499.5U CN206544415U (en) | 2016-11-23 | 2016-11-23 | A kind of middle-school mathematics teaching plotting unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621268499.5U CN206544415U (en) | 2016-11-23 | 2016-11-23 | A kind of middle-school mathematics teaching plotting unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206544415U true CN206544415U (en) | 2017-10-10 |
Family
ID=59993626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621268499.5U Expired - Fee Related CN206544415U (en) | 2016-11-23 | 2016-11-23 | A kind of middle-school mathematics teaching plotting unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206544415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108215595A (en) * | 2018-01-24 | 2018-06-29 | 湖南工学院 | A kind of special plotting unit of higher mathematics |
-
2016
- 2016-11-23 CN CN201621268499.5U patent/CN206544415U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108215595A (en) * | 2018-01-24 | 2018-06-29 | 湖南工学院 | A kind of special plotting unit of higher mathematics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171010 Termination date: 20181123 |