CN203713338U - Angle measuring and drawing device for primary school mathematics - Google Patents
Angle measuring and drawing device for primary school mathematics Download PDFInfo
- Publication number
- CN203713338U CN203713338U CN201420085276.XU CN201420085276U CN203713338U CN 203713338 U CN203713338 U CN 203713338U CN 201420085276 U CN201420085276 U CN 201420085276U CN 203713338 U CN203713338 U CN 203713338U
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- CN
- China
- Prior art keywords
- angle scale
- ruler
- angle
- rotary
- primary school
- 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 relates to an angle measuring and drawing device for primary school mathematics. The angle measuring and drawing device comprises an angle scale, a fixed ruler and two rotary rulers, wherein the angle scale is circular, and angle scale lines are arranged at the edges at the periphery of the angle scale; an annular groove is formed in the upper part of the angle scale; the fixed ruler is mounted in the diameter direction of the angle scale; one end of the fixed ruler is fixedly mounted on the inner side of the angle scale, and the other end of the fixed ruler extends to the center of the angle scale; one ends of the two rotary rulers are respectively hinged to the end part, positioned at the center of the angle scale, of the fixed ruler together, and sliding blocks are arranged at the other ends of the two rotary rulers; the two rotary rulers are respectively mounted in the annular groove in the angle scale in a sliding manner through the sliding blocks. The angle measuring and drawing device is suitable for the primary school mathematics, can realize angle measurement, and meanwhile can also draw certain angles.
Description
Technical field:
The utility model relates to a kind of stationery, a kind of primary school mathematics is painted hornwork by angulation specifically, belongs to field of Education and teaching.
Background technology:
A kind of stationery of often using when protractor is pupil's learning mathematics course, but standing crop hornwork function ratio is more single, only possesses the function taking measurement of an angle, but under actual conditions, pupil often needs Venus to take measurement of an angle and draws these two kinds of functions of angle of certain angle, but not relevant stationery also on existing market, only possesses wherein a kind of stationery of function.
Summary of the invention:
The technical problems to be solved in the utility model is: for the problems referred to above, solve common protractor and can only carry out the measurement of angle, also there is no a kind of problem that can take measurement of an angle and can draw the mathematics stationery of certain angle simultaneously, provide a kind of primary school mathematics angulation to paint hornwork, the utility model is by being provided with rotary ruler combination, can carry out the measurement of angle thereby can realize, the object that also can carry out the drafting of certain angle simultaneously.
To achieve these goals, the utility model is by the following technical solutions:
A kind of primary school mathematics is painted hornwork by angulation, comprise angle scale, fixing ruler and two rotary ruler combinations, it is characterized in that: described angle scale is circular, angle scale edge is provided with angle index line, angle scale top is provided with annular groove, described fixing ruler is installed along the diametric(al) of angle scale, one end is fixedly mounted on angle scale inner side, the other end of fixing ruler extends to the center of angle scale, to be positioned at the end of angle scale center hinged with fixing ruler respectively in one end of two rotary ruler combinations, the other end of two rotary ruler combinations is provided with slide block, and be slidably mounted on respectively in the annular groove on angle scale by slide block.
As preferably, described angle scale, fixing ruler and two rotary ruler combinations are hard transparent plastic material.
As preferably, described both sides, fixing ruler top are provided with fixing ruler length graduation mark.
As preferably, on two described rotary ruler combinations, be provided with rotary ruler combination length graduation mark.
The beneficial effects of the utility model: the utility model is suitable for primary school mathematics and uses, by fixing ruler and rotary ruler combination are set, thereby the defect of improving standing crop hornwork and only possess angle measuring function, realization can be carried out the measurement of angle, the object that also can carry out the drafting of certain angle simultaneously.
Brief description of the drawings:
For ease of explanation, the utility model is described in detail by following concrete enforcement and accompanying drawing.
Three-dimensional structure diagram when Fig. 1 is the utility model duty.
Front view when Fig. 2 is the utility model duty.
Three-dimensional structure diagram when Fig. 3 is the utility model collapsed state.
Front view when Fig. 4 is the utility model collapsed state.
In figure, 1-angle scale; 2-fixes ruler; 3-rotary ruler combination.
101-annular groove; 102-angle index line; 201-fixes ruler length graduation mark; 301-slide block; 302-rotary ruler combination length graduation mark.
Detailed description of the invention:
Below in conjunction with specific embodiment, such scheme is described further.The implementation condition adopting in embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in normal experiment.
Shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of primary school mathematics is painted hornwork by angulation, comprise angle scale 1, fixing ruler 2 and two rotary ruler combinations 3, it is characterized in that: described angle scale 1 is for circular, angle scale 1 edge is provided with angle index line 102, conveniently carries out measurement and the drafting of angle.Angle scale 1 top is provided with annular groove 101, is convenient to installation and the use of rotary ruler combination 3.Described fixing ruler 2 is installed along the diametric(al) of angle scale 1, and fixing ruler 2 one end are fixedly mounted on angle scale 1 inner side, and the other end of fixing ruler 2 extends to the center of angle scale 1, so that carry out the measurement of angle.To be positioned at the end of angle scale 1 center hinged with fixing ruler 2 respectively in one end of two rotary ruler combinations 3, and the other end of two rotary ruler combinations 3 is provided with slide block 301, and is slidably mounted on respectively in the annular groove 101 on angle scale 1 by slide block 301.
In order to facilitate use of the present utility model and cost-saving, described angle scale 1, fixing ruler 2 and two rotary ruler combinations 3 are hard transparent plastic material.
For the ease of drawing the straight line of certain length, described fixing ruler 2 both sides, top are provided with fixing ruler length graduation mark 201.
For the ease of drawing the straight line of certain length, on two described rotary ruler combinations 3, be provided with rotary ruler combination length graduation mark 302.
The operation principle of this detailed description of the invention is: in use, its angle measuring function uses according to common protractor the utility model.In the time using it to paint angle function, first user regulates the angle between rotary ruler combination 3 and fixing ruler 2 according to the angle index line 102 on the size of required drafting angle and angle scale 1, then according to the fixing ruler length graduation mark 201 on the rotary ruler combination length graduation mark 302 on rotary ruler combination 3 and fixing ruler 2, the angle line of drawing certain length can complete drafting.
Claims (4)
1. a primary school mathematics is painted hornwork by angulation, comprise angle scale (1), fixing ruler (2) and two rotary ruler combinations (3), it is characterized in that: described angle scale (1) is for circular, angle scale (1) edge is provided with angle index line (102), angle scale (1) top is provided with annular groove (101), described fixing ruler (2) is installed along the diametric(al) of angle scale (1), fixing ruler (2) one end is fixedly mounted on angle scale (1) inner side, the other end of fixing ruler (2) extends to the center of angle scale (1), to be positioned at the end of angle scale (1) center hinged with fixing ruler (2) respectively in one end of two rotary ruler combinations (3), the other end of two rotary ruler combinations (3) is provided with slide block (301), and be slidably mounted on respectively in the annular groove (101) on angle scale (1) by slide block (301).
2. a kind of primary school mathematics as claimed in claim 1 is painted hornwork by angulation, it is characterized in that: described angle scale (1), fixing ruler (2) and two rotary ruler combinations (3) are hard transparent plastic material.
3. a kind of primary school mathematics as claimed in claim 1 is painted hornwork by angulation, it is characterized in that: described fixing ruler (2) both sides, top are provided with fixing ruler length graduation mark (201).
4. a kind of primary school mathematics as claimed in claim 1 is painted hornwork by angulation, it is characterized in that: on described two rotary ruler combinations (3), be provided with rotary ruler combination length graduation mark (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085276.XU CN203713338U (en) | 2014-02-21 | 2014-02-21 | Angle measuring and drawing device for primary school mathematics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085276.XU CN203713338U (en) | 2014-02-21 | 2014-02-21 | Angle measuring and drawing device for primary school mathematics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203713338U true CN203713338U (en) | 2014-07-16 |
Family
ID=51152528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420085276.XU Expired - Fee Related CN203713338U (en) | 2014-02-21 | 2014-02-21 | Angle measuring and drawing device for primary school mathematics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203713338U (en) |
-
2014
- 2014-02-21 CN CN201420085276.XU patent/CN203713338U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20150221 |
|
| EXPY | Termination of patent right or utility model |