CN203528143U - Teaching compasses facilitating drawing - Google Patents
Teaching compasses facilitating drawing Download PDFInfo
- Publication number
- CN203528143U CN203528143U CN201320700062.4U CN201320700062U CN203528143U CN 203528143 U CN203528143 U CN 203528143U CN 201320700062 U CN201320700062 U CN 201320700062U CN 203528143 U CN203528143 U CN 203528143U
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- CN
- China
- Prior art keywords
- ruler
- fixed
- blackboard
- teaching
- fixed ruler
- Prior art date
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- Expired - Fee Related
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a pair of teaching compasses facilitating drawing. The pair of teaching compasses comprises a fixed ruler, an adhesion part for adhering to a blackboard is arranged on the back of the fixed ruler, the upper portion of the fixed ruler is provided with a rotating ruler, the fixed ruler is hinged to one end of the rotating ruler, the rotating ruler is provided with a scale line, a hoop ring for fixing a piece of chalk is slidably arranged on the rotating ruler, and an angle disc is arranged at one hinged end of the fixed ruler. When the pair of teaching compasses is in use, the position of the hoop ring on the rotating ruler is adjusted, the radius of a drawn circle is arranged, the adhesion part adheres to the blackboard, the fixed ruler is fixed on the blackboard, the rotating ruler rotates around the hinged joint of the fixed ruler and the rotating ruler, and the circle is drawn rapidly and conveniently. The pair of teaching compasses can be directly fixed on the blackboard, the problem of difficulty in fixation in drawing is solved, the circle can be drawn rapidly, drawing time is reduced, teaching time is effectively increased, teaching efficiency is improved, and the pair of teaching compasses is favorable for driving students' learning enthusiasm.
Description
Technical field
The utility model relates to a kind of teaching aid, relates in particular to a kind of compasses for teaching.
Background technology
In teaching process, usually use compasses to draw now, compasses for teaching is generally two legs, draw vertical with blackboard during use, but it uses inconvenient, fixing not firm, graphic plotting is nonstandard, undesirable, overlong time causes drawing on classroom, wasted valuable instructional blocks of time, efficiency of teaching is not high, affects teaching efficiency.
Utility model content
Technical problem to be solved in the utility model is to provide and a kind ofly can be directly fixed on blackboard, during drawing, do not worry fixation problem, can draw rapidly circle, reduce the drawing time, increased instructional blocks of time effectively, improved efficiency of teaching, be conducive to drive Students ' Learning enthusiasm be convenient to the educational compasses of drawing.
For solving the problems of the technologies described above, the technical solution of the utility model is: the educational compasses of being convenient to drawing, comprise fixed ruler, the back side of described fixed ruler is provided with for the adhesion portion with blackboard stickup, described fixed ruler top is provided with rotary ruler, and one end of described fixed ruler and described rotary ruler is hinged, and described rotary ruler is provided with graduation mark, on described rotary ruler, slide and be provided with for the fixing cover cranse of chalk, the hinged one end of described fixed ruler is provided with angle disk.
As preferred technical scheme, described adhesion portion comprises some stacked stacked adhering layers.
As the improvement to technique scheme, every layer of described adhering layer comprises adhesive tape, and described adhesive tape is provided with the colloid adhesion coating consisting of colloidal materials.
As the further improvement to technique scheme, described fixed ruler is connected with described angle disk one.
Owing to having adopted technique scheme, be convenient to the educational compasses of drawing, comprise fixed ruler, the back side of described fixed ruler is provided with for the adhesion portion with blackboard stickup, described fixed ruler top is provided with rotary ruler, and one end of described fixed ruler and described rotary ruler is hinged, and described rotary ruler is provided with graduation mark, on described rotary ruler, slide and be provided with for the fixing cover cranse of chalk, the hinged one end of described fixed ruler is provided with angle disk.During use, regulate the position of described cover cranse on described rotary ruler, painted radius of a circle is set, by described adhesion portion and blackboard adhesion, described fixed ruler is fixed on blackboard, rotate described rotary ruler and rotate around described fixed ruler and the described rotary ruler place of being articulated and connected, draw quickly and easily circle.The utility model can directly be fixed on blackboard, does not worry fixation problem during drawing, can draw rapidly circle, reduces the drawing time, has increased instructional blocks of time effectively, has improved efficiency of teaching, is conducive to drive the enthusiasm of Students ' Learning.
Accompanying drawing explanation
The following drawings is only intended to the utility model to schematically illustrate and explain, does not limit scope of the present utility model.Wherein:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the top view of the utility model embodiment fixed ruler.
In figure: 1-fixed ruler; 2-rotary ruler; 3-graduation mark; 4-overlaps cranse; 5-angle disk; 6-adhering layer.
The specific embodiment
Below in conjunction with drawings and Examples, further set forth the utility model.In the following detailed description, only by the mode of explanation, some one exemplary embodiment of the present utility model has been described.Undoubtedly, those of ordinary skill in the art can recognize, in the situation that not departing from spirit and scope of the present utility model, can to described embodiment, revise by various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than for limiting the protection domain of claim.
As shown in Figure 1, be convenient to the educational compasses of drawing, comprise fixed ruler 1, the back side of described fixed ruler 1 is provided with for the adhesion portion with blackboard stickup, described fixed ruler 1 top is provided with rotary ruler 2, and described fixed ruler 1 is hinged with one end of described rotary ruler 2, and described rotary ruler 2 is provided with graduation mark 3, on described rotary ruler 2, slide and be provided with for the fixing cover cranse 4 of chalk, the hinged one end of described fixed ruler 1 is provided with angle disk 5.During use, regulate the position of described cover cranse 4 on described rotary ruler 2, painted radius of a circle is set, by described adhesion portion and blackboard adhesion, described fixed ruler 1 is fixed on blackboard, rotate described rotary ruler 2 and rotate with described rotary ruler 2 places of being articulated and connected around described fixed ruler 1, draw quickly and easily circle.The present embodiment can directly be fixed on blackboard, does not worry fixation problem during drawing, can draw rapidly circle, reduces the drawing time, has increased instructional blocks of time effectively, has improved efficiency of teaching, is conducive to drive the enthusiasm of Students ' Learning.
Described adhesion portion comprises some stacked stacked adhering layers 6, and every layer of described adhering layer 6 comprises adhesive tape, and described adhesive tape is provided with the colloid adhesion coating consisting of colloidal materials.Described colloid adhesion coating can be fixed with blackboard, when described colloid adhesion coating viscosity is little, removes described adhesive tape, exposes new described colloid adhesion coating, has both guaranteed to fix with blackboard, is also convenient to change.
Described fixed ruler 1 is connected with described angle disk 5 one.Both can Fast Drawing circular, also can make the circular arc of different angles according to described angle disk 5 rapid drawings, easy to use.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. be convenient to the educational compasses of drawing, comprise fixed ruler, it is characterized in that: the back side of described fixed ruler is provided with for the adhesion portion with blackboard stickup, described fixed ruler top is provided with rotary ruler, one end of described fixed ruler and described rotary ruler is hinged, described rotary ruler is provided with graduation mark, slides and be provided with for the fixing cover cranse of chalk on described rotary ruler, and the hinged one end of described fixed ruler is provided with angle disk.
2. the educational compasses of drawing be convenient to as claimed in claim 1, is characterized in that: described adhesion portion comprises some stacked stacked adhering layers.
3. the educational compasses of being convenient to drawing as claimed in claim 2, is characterized in that: every layer of described adhering layer comprises adhesive tape, and described adhesive tape is provided with the colloid adhesion coating consisting of colloidal materials.
4. the educational compasses that being convenient to as described in claim 1,2 or 3 drawn, is characterized in that: described fixed ruler is connected with described angle disk one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320700062.4U CN203528143U (en) | 2013-11-08 | 2013-11-08 | Teaching compasses facilitating drawing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320700062.4U CN203528143U (en) | 2013-11-08 | 2013-11-08 | Teaching compasses facilitating drawing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203528143U true CN203528143U (en) | 2014-04-09 |
Family
ID=50414394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320700062.4U Expired - Fee Related CN203528143U (en) | 2013-11-08 | 2013-11-08 | Teaching compasses facilitating drawing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203528143U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110774805A (en) * | 2019-11-06 | 2020-02-11 | 陕西科技大学 | Compasses for teaching |
-
2013
- 2013-11-08 CN CN201320700062.4U patent/CN203528143U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110774805A (en) * | 2019-11-06 | 2020-02-11 | 陕西科技大学 | Compasses for teaching |
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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: 20140409 Termination date: 20141108 |
|
| EXPY | Termination of patent right or utility model |