CN201646151U - Drawing tool for teaching - Google Patents
Drawing tool for teaching Download PDFInfo
- Publication number
- CN201646151U CN201646151U CN2010201727326U CN201020172732U CN201646151U CN 201646151 U CN201646151 U CN 201646151U CN 2010201727326 U CN2010201727326 U CN 2010201727326U CN 201020172732 U CN201020172732 U CN 201020172732U CN 201646151 U CN201646151 U CN 201646151U
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- CN
- China
- Prior art keywords
- compasses
- rotational cylindrical
- upright
- teaching
- drawing instrument
- 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 relates to a drawing tool for teaching, which comprises compasses and an angle ruler, wherein the compasses comprise a positioning upright and a rotating upright, wherein the positioning upright of the compasses is fixed with the bottom edge of the angle ruler, the rotating upright of the compasses comprises an upper rotating upright and a lower rotating upright which are hinged with each other, the bottom part of the lower rotating upright is provided with a sleeve, and the positioning upright of the compasses is provided with a handle. The utility model has simple structure and convenient use, combines the traditional angle ruler and the compasses, can draw not only round patterns but also fan-shaped patterns, and has more accurate angle.
Description
Technical field
The utility model relates to a kind of drawing instrument, a kind of specifically drawing instrument is used in the teaching that integrally combines of compasses and bevel protractor, belongs to the teaching aid field.
Background technology
How much subjects are one of required courses of mathematics, mostly be figure mathematics how much, in teacher's teaching, need graphing to help auxiliary understanding of student and answer examination question, therefore need to use multiple drawing instrument, present drawing instrument is more single, when graphing, multiple tool combinations need be used, will need like this to use multiple instrument, as ruler, bevel protractor, compasses or the like carry inconvenience very, so we need a kind of comprehensive drawing instrument.
The utility model content
Technical problem to be solved in the utility model provides a kind of teaching drawing instrument, not only can draw circumference, also mensurable angle.
For addressing the above problem, the utility model by the following technical solutions:
A kind of teaching drawing instrument comprises compasses and bevel protractor, it is characterized in that: described compasses comprise reference column and Rotational Cylindrical, and the reference column of described compasses and the base of bevel protractor are fixed.
Below be further improvement of these options:
The Rotational Cylindrical of described compasses comprises Rotational Cylindrical and following Rotational Cylindrical, and described upward Rotational Cylindrical and following Rotational Cylindrical are hinged.
The described bottom of Rotational Cylindrical down is provided with sleeve pipe.
The reference column of described compasses is provided with handle.
The utility model compared with prior art has following characteristics: simple in structure, easy to use, with traditional bevel protractor and compasses combination, not only can draw circular pattern, and also can draw scallop, and angle is comparatively accurate.
The utility model is described in further detail below in conjunction with drawings and Examples:
Description of drawings
Accompanying drawing is the structural representation of drawing instrument among the utility model embodiment;
Among the figure:
The 1-compasses, 2-bevel protractor, 3-reference column, the last Rotational Cylindrical of 4-, Rotational Cylindrical under the 5-, 6-sleeve pipe, 7-handle.
The specific embodiment
Embodiment, as shown in the figure, a kind of teaching drawing instrument, comprise compasses 1 and bevel protractor 2, described compasses 1 comprise reference column 3 and Rotational Cylindrical, the reference column 3 of described compasses 1 is fixed with the base of bevel protractor 2, the Rotational Cylindrical of described compasses 1 comprises Rotational Cylindrical 4 and following Rotational Cylindrical 5, describedly go up Rotational Cylindrical 4 and following Rotational Cylindrical 5 is hinged, when drawing larger-diameter circular pattern, bent Rotational Cylindrical, the described bottom of Rotational Cylindrical 5 down is provided with sleeve pipe 6, but the plug-in mounting chalk is drawn in the sleeve pipe 6, and the reference column 3 of described compasses 1 is provided with handle 7, and the use angle chi is that hand-held handle 7 fixed positions are convenient.
During use, the Rotational Cylindrical of compasses can bend, and can draw the bigger circular pattern of diameter, and the fit angle chi can be drawn the scallop of angle comparatively accurately simultaneously, and use is carried convenient.
Claims (4)
1. a teaching drawing instrument comprises compasses (1) and bevel protractor (2), and it is characterized in that: described compasses (1) comprise reference column (3) and Rotational Cylindrical, and the reference column (3) of described compasses (1) is fixed with the base of bevel protractor (2).
2. a kind of teaching drawing instrument according to claim 1 is characterized in that: the Rotational Cylindrical of described compasses (1) comprises Rotational Cylindrical (4) and following Rotational Cylindrical (5), and described upward Rotational Cylindrical (4) and following Rotational Cylindrical (5) are hinged.
3. a kind of teaching drawing instrument according to claim 2 is characterized in that: the described bottom of Rotational Cylindrical (5) down is provided with sleeve pipe (6).
4. a kind of teaching drawing instrument according to claim 3 is characterized in that: the reference column (3) of described compasses (1) is provided with handle (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201727326U CN201646151U (en) | 2010-04-28 | 2010-04-28 | Drawing tool for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201727326U CN201646151U (en) | 2010-04-28 | 2010-04-28 | Drawing tool for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201646151U true CN201646151U (en) | 2010-11-24 |
Family
ID=43111371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201727326U Expired - Fee Related CN201646151U (en) | 2010-04-28 | 2010-04-28 | Drawing tool for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201646151U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104369589A (en) * | 2014-10-30 | 2015-02-25 | 无锡艾科瑞思产品设计与研究有限公司 | Cyclograph |
-
2010
- 2010-04-28 CN CN2010201727326U patent/CN201646151U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104369589A (en) * | 2014-10-30 | 2015-02-25 | 无锡艾科瑞思产品设计与研究有限公司 | Cyclograph |
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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: 20101124 Termination date: 20110428 |