CN202623709U - Novel geometry teaching drawing rule - Google Patents
Novel geometry teaching drawing rule Download PDFInfo
- Publication number
- CN202623709U CN202623709U CN 201220251629 CN201220251629U CN202623709U CN 202623709 U CN202623709 U CN 202623709U CN 201220251629 CN201220251629 CN 201220251629 CN 201220251629 U CN201220251629 U CN 201220251629U CN 202623709 U CN202623709 U CN 202623709U
- Authority
- CN
- China
- Prior art keywords
- rule
- teaching drawing
- novel geometry
- geometry teaching
- novel
- 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 novel geometry teaching drawing rule. According to the structure of the novel geometry teaching drawing rule, the left end of a main rule is connected with the right end of an angle gauge, the middle of the main rule is provided with a groove, the lower end of a rotary rule is fixedly connected with the angle gauge through a fastening knob, the lower end of the rotary rule is provided with an inserting block, the top end of the rotary rule is provided with chalk, and the right end of the main rule is provided with a fixing head. Compared with the prior art, the novel geometry teaching drawing rule is provided with functions of a set square, a compass, the angle gauge and a straight rule. The novel geometry teaching drawing rule can be conveniently used to draw parallel lines and a plurality of graphs, is quite high in accuracy of measuring and drawing, is carried conveniently, and is quite suitable for being used in teaching of teachers. Besides, the novel geometry teaching drawing rule is reasonable in design, easy to machine, and convenient to use, thereby having good promotional value.
Description
1, technical field
The utility model relates to a kind of teaching aid, specifically a kind of novel several teaching drawing ruler.
2, background technology
Teacher need use a large amount of drawing instruments when learning geometry curriculum usually; The most frequently used have set square, compasses, protractor, a ruler etc.; Existing drawing instrument function ratio is more single, and drawing instruments are changed and used in how needing in the time of drawing, gives lessons to teacher and has brought inconvenience greatly.
And teacher also draws parallel lines in the teaching process on the blackboard of being everlasting; Because there is not the instrument of specialty, need two rulers to slide and could draw out usually, operating process is more loaded down with trivial details; And the distance between two parallel lines also is not easy to confirm, so just reduced the efficient of teaching.
3, summary of the invention
The purpose of the utility model is to overcome the deficiency that exists in the prior art, and a kind of novel several teaching drawing ruler is provided, and this drawing ruler possesses functions such as set square, compasses, protractor, ruler simultaneously, also can easily draw out parallel lines.
The technical scheme of the utility model realizes that by following mode the left end of main scale links to each other with the right-hand member of protractor in its structure, is set to groove between wherein, and the lower end of rotation chi is fixedly connected with protractor through tightening knob, and the lower end that rotates chi is provided with inserted block; The top of rotation chi is set to chalk; The right-hand member of main scale is set to fixing head.
Above-mentioned rotation chi is provided with scale value.
Above-mentioned main scale is provided with scale value.
The back side of above-mentioned protractor is provided with sucker.
During use, main scale and rotation chi are put into respectively on two rays that need take measurement of an angle, can accurately read the angle value that needs measurement through protractor; When needs are drawn the triangle of special angle, through the main scale leg-of-mutton limit of drawing, regulate the rotation chi then and rotate to the angle that needs through protractor, can draw out corresponding triangle through the scale on rotation chi and the main scale then; When needs were drawn parallel lines, the bottom that only needs to rotate chi and protractor was adjusted into an angle of 90 degrees, then inserted block is inserted the protractor bottom, and the rotation chi just can't rotate, loosening then tightening knob, and the rotation chi moves in groove, can draw out parallel lines.
The utility model has the advantages that:
A kind of novel several teaching drawing ruler of the utility model is compared with prior art; Possessed the function of set square, compasses, protractor, ruler simultaneously, also can easily draw out parallel lines, had an effect that a kind of drawing ruler can be drawn out multiple figure; And the degree of accuracy of measurement and drawing is very high; Be easy to carry, use when being fit to very much teacher and giving lessons, characteristics such as that the utility model also has is reasonable in design, simple in structure, be easy to processing, easy to use; Thereby, have excellent popularization and be worth.
4, description of drawings
Fig. 1 is a kind of structural representation of novel several teaching drawing ruler;
Mark in the accompanying drawing is represented respectively;
1, chalk; 2, rotation chi; 3, protractor; 4, fixing head; 5, main scale; 6, groove; 7, tightening knob; 8, inserted block.
5, the specific embodiment
Below in conjunction with accompanying drawing a kind of novel several teaching drawing ruler of the utility model is done following the detailed description.
As shown in Figure 1; The left end of main scale 5 links to each other with the right-hand member of protractor 3 in a kind of novel its structure of several teaching drawing ruler of the utility model; Be set to groove 6 wherein, the lower end of rotation chi 2 is fixedly connected with protractor 3 through tightening knob 7, and the lower end of rotation chi 2 is provided with inserted block 8; The top of rotation chi 2 is set to chalk 1; The right-hand member of main scale 5 is set to fixing head 4.
All be provided with scale value on rotation chi 2 and the main scale 5.
The back side of protractor 3 is provided with sucker, prevents when drawing parallel lines, sliding condition to occur.。
A kind of novel its processing and fabricating of several teaching drawing ruler of the utility model is very simple and convenient, 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 novel several teaching drawing ruler is characterized in that the left end of main scale links to each other with the right-hand member of protractor, is set to groove between wherein, and the lower end of rotation chi is fixedly connected with protractor through tightening knob, and the lower end that rotates chi is provided with inserted block; The top of rotation chi is set to chalk; The right-hand member of main scale is set to fixing head.
2. a kind of novel several teaching drawing ruler according to claim 1 is characterized in that rotating chi and is provided with scale value.
3. a kind of novel several teaching drawing ruler according to claim 1 is characterized in that main scale is provided with scale value.
4. a kind of novel several teaching drawing ruler according to claim 1 is characterized in that the back side of protractor is provided with sucker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220251629 CN202623709U (en) | 2012-05-31 | 2012-05-31 | Novel geometry teaching drawing rule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220251629 CN202623709U (en) | 2012-05-31 | 2012-05-31 | Novel geometry teaching drawing rule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202623709U true CN202623709U (en) | 2012-12-26 |
Family
ID=47376939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220251629 Expired - Fee Related CN202623709U (en) | 2012-05-31 | 2012-05-31 | Novel geometry teaching drawing rule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202623709U (en) |
-
2012
- 2012-05-31 CN CN 201220251629 patent/CN202623709U/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: 20121226 Termination date: 20130531 |