CN202557100U - Drawing ruler for mathematical teaching - Google Patents
Drawing ruler for mathematical teaching Download PDFInfo
- Publication number
- CN202557100U CN202557100U CN2012201439652U CN201220143965U CN202557100U CN 202557100 U CN202557100 U CN 202557100U CN 2012201439652 U CN2012201439652 U CN 2012201439652U CN 201220143965 U CN201220143965 U CN 201220143965U CN 202557100 U CN202557100 U CN 202557100U
- Authority
- CN
- China
- Prior art keywords
- ruler
- sliding sleeve
- main scale
- main
- groove
- 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
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Abstract
The utility model provides a drawing ruler for mathematical teaching, including a main ruler, grooves, a circular disc, a fastening nut, and a rotating ruler. the middle parts of the main ruler and the rotating ruler are provided with the grooves, the fastening nut penetrates through the circular disc, the main ruler, and the rotating ruler and is fixed, one side of the main ruler is provided with a sliding sleeve, a recessed hole is arranged in the sliding sleeve, and a fixing nut is arranged on the external side of the sliding sleeve. Compared with the drawing ruler in the prior art, the drawing ruler provided has the functional characteristics of drawing tools, such as compasses, protractors, rulers etc. teachers don't have to carry a large amount of drawing tools while going to class, and the drawing ruler provided can independently complete the drawing works, thereby effectively improving the drawing time; moreover, the drawing ruler is convenient in use and convenient in carrying.
Description
1, technical field
The utility model relates to a kind of teaching aid, and specifically a kind of mathematical education is used drawing ruler.
2, background technology
The drawing instrument that present teacher student often uses mainly contains: set square, compasses, protractor, ruler; All special single of its function, structure; When going to school and leaving school at every turn, teacher all to carry a large amount of drawing instruments, special inconvenience, the instrument in the replacing hand that when drawing, also need not stop; Waste the quality time of giving a lesson for this reason, influenced the normal progress of teaching.
Be a teacher and on blackboard, draw in the triangular graph, some situation can accurately not drawn out, and lets classmates can accurately not observe the relation between each figure, the angle, solves a problem, understands for classmates and all brought certain inconvenience.
3, summary of the invention
The purpose of the utility model is to overcome the deficiency that exists in the prior art, provides a kind of mathematical education of accurate drafting figure usefulness to use drawing ruler.
The technical scheme of the utility model realizes that by following mode its structure is made up of main scale, groove, disk, clamp nut and rotary ruler, and the middle part of main scale and rotary ruler is provided with groove, and clamp nut passes disk, main scale, rotary ruler and is fixed; One side of main scale is provided with sliding sleeve, and sliding sleeve is provided with shrinkage pool, and the arranged outside of sliding sleeve has hold-down nut.
Above-mentioned clamp nut passes the groove that is provided with on main scale and the rotary ruler.
Above-mentioned main scale, rotary ruler and disk are provided with scale value.
Above-mentioned shrinkage pool is arranged in the groove.
The utility model has the advantages that:
A kind of mathematical education of the utility model is compared with prior art with drawing ruler; This drawing ruler has not only possessed the functional characteristics of drawing instruments such as compasses, protractor, ruler; Also needn't carry a large amount of drawing instruments again when teacher goes to class, only just can independently accomplish drawing work, effectively improve the drawing time with this drawing ruler; And this drawing ruler is very easy to use, carries more convenient.
4, description of drawings
Fig. 1 is the structural representation of a kind of mathematical education with drawing ruler;
Mark in the accompanying drawing is represented respectively;
1, main scale; 2, groove; 3, disk; 4, clamp nut; 5, shrinkage pool; 6, rotary ruler; 7, sliding sleeve; 8, hold-down nut.
5, the specific embodiment
Below in conjunction with accompanying drawing a kind of mathematical education of the utility model is done following the detailed description with drawing ruler.
As shown in Figure 1; A kind of mathematical education of the utility model is made up of main scale 1, groove 2, disk 3, clamp nut 4 and rotary ruler 6 with its structure of drawing ruler; The middle part of main scale 1 and rotary ruler 6 is provided with groove 2; Clamp nut 4 passes the groove 2 that is provided with on disk 3, main scale 1 and the rotary ruler 6, and is fixed; One side of main scale 1 is provided with sliding sleeve 7, and sliding sleeve 7 is provided with shrinkage pool 5, and shrinkage pool 5 is arranged in the groove 2, and the arranged outside of sliding sleeve 7 has hold-down nut 8, is convenient to sliding sleeve 7 fixing.
Main scale 1, rotary ruler 6 and disk 3 are provided with scale value.
A kind of mathematical education of the utility model is very simple and convenient with its processing and fabricating of drawing ruler, can process shown in the accompanying drawing to specifications.
Except that the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (4)
1. a mathematical education is used drawing ruler, it is characterized in that being made up of main scale, groove, disk, clamp nut and rotary ruler, and the middle part of main scale and rotary ruler is provided with groove, and clamp nut passes disk, main scale, rotary ruler and is fixed; One side of main scale is provided with sliding sleeve, and sliding sleeve is provided with shrinkage pool, and the arranged outside of sliding sleeve has hold-down nut.
2. a kind of mathematical education according to claim 1 is used drawing ruler, it is characterized in that clamp nut passes the groove that is provided with on main scale and the rotary ruler.
3. a kind of mathematical education according to claim 1 is used drawing ruler, it is characterized in that main scale, rotary ruler and disk are provided with scale value.
4. a kind of mathematical education according to claim 1 is used drawing ruler, it is characterized in that shrinkage pool is arranged in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201439652U CN202557100U (en) | 2012-04-09 | 2012-04-09 | Drawing ruler for mathematical teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201439652U CN202557100U (en) | 2012-04-09 | 2012-04-09 | Drawing ruler for mathematical teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202557100U true CN202557100U (en) | 2012-11-28 |
Family
ID=47206794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201439652U Expired - Fee Related CN202557100U (en) | 2012-04-09 | 2012-04-09 | Drawing ruler for mathematical teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202557100U (en) |
-
2012
- 2012-04-09 CN CN2012201439652U patent/CN202557100U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20130409 |