CN204801330U - Mathematical education is with combination drawing rule - Google Patents
Mathematical education is with combination drawing rule Download PDFInfo
- Publication number
- CN204801330U CN204801330U CN201520181932.0U CN201520181932U CN204801330U CN 204801330 U CN204801330 U CN 204801330U CN 201520181932 U CN201520181932 U CN 201520181932U CN 204801330 U CN204801330 U CN 204801330U
- Authority
- CN
- China
- Prior art keywords
- drawing rule
- rule
- jointed shaft
- pilot pin
- combination
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a mathematical education is with combination drawing rule, this mathematical education is with combination drawing rule includes first drawing rule, the second drawing rule, the third drawing rule, all be provided with the scale on the three drawing rule, the both ends of second drawing rule are provided with the articulated shaft, be provided with the pilot pin in the articulated shaft, the both ends of second drawing rule are provided with circular angle scale, first drawing rule and third drawing rule connect with second drawing rule hinge in the articulated shaft department at second drawing rule both ends respectively, be provided with function curve template and geometry template on first drawing rule and the third drawing rule respectively. The angle scale at second drawing rule both ends can be used to supplementary first drawing rule and draws the angle line with the second drawing rule, also can be used to measure the angle, the pilot pin can with the drawing rule location on the drawing paper, be convenient for draw, the drawing line can be used to draw the circular of different diameters, three drawing rule can be folded and pack up after finishing using, simple structure has the function of ruler, compasses, set -square, protractor, convenient to use concurrently.
Description
Technical field
The utility model belongs to teaching aid field, particularly relates to a kind of mathematical education combination drawing rule.
Background technology
Ruler, graphometer, compasses, engineer's scale etc., be requisite instrument during mathematical education is drawn, these instruments are all used alone at present, carry very inconvenient, miss certain part instrument slightly because of carelessness, can make troubles to drawing, and it is consuming time many to use these instruments to draw, efficiency is low.
Utility model content
The object of the utility model embodiment is to provide a kind of mathematical education to combine drawing rule, is intended to solve existing teaching drawing rule function singleness, carries inconvenient problem.
The utility model realizes like this, a kind of mathematical education combination drawing rule comprises the first drawing rule, the second drawing rule, the 3rd drawing rule, three drawing rules are all provided with scale, the two ends of the second described drawing rule are provided with jointed shaft, pilot pin is provided with in jointed shaft, the two ends of the second drawing rule are provided with round angle scale, first drawing rule and the 3rd drawing rule at jointed shaft place and the second drawing rule hinge-connection at the second drawing rule two ends, the first drawing rule and the 3rd drawing rule are respectively arranged with function curve template and geometry template respectively.
Further, described jointed shaft is hollow structure, and hollow structure inside is provided with return spring, jointed shaft is provided with pilot pin handle, and return spring withstands pilot pin handle, and pilot pin is arranged on handle through return spring and jointed shaft.
Further, described jointed shaft upper outer surface is provided with annular groove, annular groove is wound with drawing line.
Further, be all provided with chute bottom the first described drawing rule and the 3rd drawing rule, chute inside is provided with secondary chi, and secondary chi is provided with graduation mark.
The two ends of the second described drawing rule are provided with circular angle scale, can be used for auxiliary first drawing rule and the second drawing rule drafting angle line, also can be used for taking measurement of an angle, pilot pin can be positioned on drawing paper by pressing pilot pin handle, be convenient to draw, drawing line on jointed shaft can be used for the circle of drawing different-diameter, the secondary chi of the first drawing rule and the 3rd drawing rule can be used for auxiliary drafting straight line, rear three drawing rules of finishing using can fold to be packed up, structure is simple, have the function of ruler, compasses, set square, protractor concurrently, easy to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of the mathematical education combination drawing rule that the utility model embodiment provides;
In figure: 1, the first drawing rule; 2, the second drawing rule; 3, the 3rd drawing rule; 4, angle scale; 5, pilot pin handle.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Below in conjunction with drawings and the specific embodiments, application principle of the present utility model is further described.
Fig. 1 shows the structure of mathematical education of the present utility model combination drawing rule, as shown in the figure, the utility model realizes like this, a kind of mathematical education combination drawing rule comprises the first drawing rule 1, second drawing rule 2, 3rd drawing rule 3, three drawing rules are all provided with scale, the two ends of the second described drawing rule 2 are provided with jointed shaft, pilot pin is provided with in jointed shaft, the two ends of the second drawing rule 2 are provided with round angle scale 4, first drawing rule 1 and the 3rd drawing rule 3 are respectively at jointed shaft place and second drawing rule 2 hinge-connection at the second drawing rule 2 two ends, first drawing rule 1 and the 3rd drawing rule 3 are respectively arranged with function curve template and geometry template.
Further, described jointed shaft is hollow structure, and hollow structure inside is provided with return spring, jointed shaft is provided with pilot pin handle 5, and return spring withstands pilot pin handle 5, and pilot pin is arranged on handle through return spring and jointed shaft.
Further, described jointed shaft upper outer surface is provided with annular groove, annular groove is wound with drawing line.
Further, be all provided with chute bottom the first described drawing rule 1 and the 3rd drawing 3 chis, chute inside is provided with secondary chi, and secondary chi is provided with graduation mark.
The two ends of the second described drawing rule are provided with circular angle scale, can be used for auxiliary first drawing rule and the second drawing rule drafting angle line, also can be used for taking measurement of an angle, pilot pin can be positioned on drawing paper by pressing pilot pin handle, be convenient to draw, drawing line on jointed shaft can be used for the circle of drawing different-diameter, the secondary chi of the first drawing rule and the 3rd drawing rule can be used for auxiliary drafting straight line, rear three drawing rules of finishing using can fold to be packed up, structure is simple, have the function of ruler, compasses, set square, protractor concurrently, easy to use.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a mathematical education combination drawing rule, it is characterized in that, described mathematical education combination drawing rule comprises the first drawing rule, second drawing rule, 3rd drawing rule, three drawing rules are all provided with scale, the two ends of the second described drawing rule are provided with jointed shaft, pilot pin is provided with in jointed shaft, the two ends of the second drawing rule are provided with round angle scale, first drawing rule and the 3rd drawing rule are respectively at jointed shaft place and the second drawing rule hinge-connection at the second drawing rule two ends, first drawing rule and the 3rd drawing rule are respectively arranged with function curve template and geometry template.
2. teaching as claimed in claim 1 combination drawing rule, it is characterized in that, described jointed shaft is hollow structure, hollow structure inside is provided with return spring, jointed shaft is provided with pilot pin handle, return spring withstands pilot pin handle, and pilot pin is arranged on handle through return spring and jointed shaft.
3. teaching as claimed in claim 2 combination drawing rule, it is characterized in that, described jointed shaft upper outer surface is provided with annular groove, annular groove is wound with drawing line.
4. teaching as claimed in claim 1 combination drawing rule, it is characterized in that, be all provided with chute bottom the first described drawing rule and the 3rd drawing rule, chute inside is provided with secondary chi, and secondary chi is provided with graduation mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520181932.0U CN204801330U (en) | 2015-03-30 | 2015-03-30 | Mathematical education is with combination drawing rule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520181932.0U CN204801330U (en) | 2015-03-30 | 2015-03-30 | Mathematical education is with combination drawing rule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204801330U true CN204801330U (en) | 2015-11-25 |
Family
ID=54586216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520181932.0U Expired - Fee Related CN204801330U (en) | 2015-03-30 | 2015-03-30 | Mathematical education is with combination drawing rule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204801330U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106274189A (en) * | 2016-09-23 | 2017-01-04 | 江南大学 | Combination changeable ruler |
| CN109515037A (en) * | 2018-12-05 | 2019-03-26 | 富川瑶族自治县第二小学 | A kind of combination ruler |
| CN115179679A (en) * | 2022-08-11 | 2022-10-14 | 日照职业技术学院 | Be used for mathematical education combination formula drawing appurtenance |
-
2015
- 2015-03-30 CN CN201520181932.0U patent/CN204801330U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106274189A (en) * | 2016-09-23 | 2017-01-04 | 江南大学 | Combination changeable ruler |
| CN109515037A (en) * | 2018-12-05 | 2019-03-26 | 富川瑶族自治县第二小学 | A kind of combination ruler |
| CN115179679A (en) * | 2022-08-11 | 2022-10-14 | 日照职业技术学院 | Be used for mathematical education combination formula drawing appurtenance |
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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: 20151125 Termination date: 20170330 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |