CN2412755Y - Multi-purpose teaching ruler - Google Patents
Multi-purpose teaching ruler Download PDFInfo
- Publication number
- CN2412755Y CN2412755Y CN 00210802 CN00210802U CN2412755Y CN 2412755 Y CN2412755 Y CN 2412755Y CN 00210802 CN00210802 CN 00210802 CN 00210802 U CN00210802 U CN 00210802U CN 2412755 Y CN2412755 Y CN 2412755Y
- Authority
- CN
- China
- Prior art keywords
- ruler
- main
- auxiliary
- utility
- model
- 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 multi-purpose teaching ruler which is composed of a main ruler and an auxiliary ruler which are connected through a shaft, wherein a slide groove is arranged on the auxiliary ruler, a slide block is arranged in the slide groove and is connected with a fixer, and angle displaying scales are arranged on the main ruler. When the multi-purpose teaching ruler is used for drawing a circle, a short chalk is arranged on the chalk fixer, the main ruler is tightly attached on a blackboard, the auxiliary ruler is rotated around the shaft, and then the circle can be drawn. When the multi-purpose teaching ruler is used for drawing an angle, the main ruler is used for drawing a horizontal line, the rim of the auxiliary ruler is aligned to the scales on the main ruler, and then a straight line is drawn along the rim of the auxiliary ruler. The auxiliary ruler is rotated to be on the same straight line with the main ruler, and then the utility model is changed to a ferule. The utility model can be used as a straight ruler, a pair of compasses, a protractor and the ferule, and has the advantages of multifunction, simple structure and convenient use.
Description
The utility model belongs to teaching aid, is a kind of teaching ruler of using more.
At present in classroom instruction, if desired when the blackboard upper drawing circle, generally will be by means of compasses, inconvenient operation, during this external picture angle, also will be by means of protractor.
The purpose of this utility model is will provide a kind of can draw circle on blackboard, can draw the teaching ruler of using at angle again more.
Solution of the present utility model is to adopt main scale and auxilliary chi to constitute, connect by axle between main scale and the auxilliary chi, on the auxilliary chi the vertical chute parallel with chi arranged, slide block is arranged in the chute, be connected with the chalk fixator on the slide block, the angle display scale is arranged on the main scale, and the angle that is between angle display scale and main scale and the auxilliary chi is corresponding.Drawing bowlder, will lack chalk and be contained on the chalk fixator, adjust slide block and determine radius of a circle, main scale is close on the blackboard, is that auxilliary chi is rotated in the center of circle with the axle, the circle that can draw, and this circle is jagged in the position of main scale, fills breach with chalk and gets final product.When drawing the angle, draw a horizontal line by main scale, scale on the main scale is aimed at the edge of auxilliary chi, the angle between the edge that the prolongs auxilliary chi again straight line that draws, two lines is identical with the angle of scale demonstration.Rotate auxilliary chi, make auxilliary chi and main scale point-blank, can become a teacher's pointer.
The axle that connects main scale and auxilliary chi can be a hollow shaft, draws bowlder and locates in the axle center with round dot of chalk point, as the center of circle of circle.
The utility model can be used as ruler, compasses, protractor, teacher's pointer, and the many usefulness of a chi are simple in structure, easy to use.
Below in conjunction with drawings and Examples the utility model is further specified:
Fig. 1 is the utility model schematic diagram;
Fig. 2 is the utility model side diagrammatic sketch.
Among the figure: 1. main scale, 2. auxilliary chi, 3. spool, 4. chute, 5. slide block, 6. fixator, 7. scale, 8. chalk.
The utility model mainly is made of main scale 1 and auxilliary chi 2, connect by axle 3 between main scale 1 and the auxilliary chi 2, on the auxilliary chi 2 the vertical chute 4 parallel with chi arranged, slide block 5 is arranged in the chute 4, be connected with chalk fixator 6 on the slide block 5, angle display scale 7 is arranged on the main scale 1, the angle that is between angle display scale 7 and main scale 1 and the auxilliary chi 2 is corresponding, on the fixator 6 chalk 8 can be housed, the axle 3 that connects main scale 1 and auxilliary chi 2 is hollow shafts.
Claims (2)
1, a kind of teaching ruler of using more, it is characterized in that: it mainly is made of main scale (1) and auxilliary chi (2), connect by axle (3) between main scale (1) and the auxilliary chi (2), on the auxilliary chi (2) the vertical chute (4) parallel with chi arranged, slide block (5) is arranged in the chute (4), be connected with chalk fixator (6) on the slide block (5), angle display scale (7) is arranged on the main scale (1).
2, teaching ruler according to claim 1 is characterized in that: axle (3) is a hollow shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00210802 CN2412755Y (en) | 2000-02-02 | 2000-02-02 | Multi-purpose teaching ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00210802 CN2412755Y (en) | 2000-02-02 | 2000-02-02 | Multi-purpose teaching ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2412755Y true CN2412755Y (en) | 2001-01-03 |
Family
ID=33577621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00210802 Expired - Fee Related CN2412755Y (en) | 2000-02-02 | 2000-02-02 | Multi-purpose teaching ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2412755Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102602201A (en) * | 2012-04-20 | 2012-07-25 | 张纹源 | Straight rule with angle drawing function |
| CN106476490A (en) * | 2016-11-10 | 2017-03-08 | 叶晨希 | A kind of multipurpose set square |
| CN106476497A (en) * | 2016-11-10 | 2017-03-08 | 陈征瀚 | A kind of Multifunctional angle scale |
| CN110774805A (en) * | 2019-11-06 | 2020-02-11 | 陕西科技大学 | Compasses for teaching |
-
2000
- 2000-02-02 CN CN 00210802 patent/CN2412755Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102602201A (en) * | 2012-04-20 | 2012-07-25 | 张纹源 | Straight rule with angle drawing function |
| CN106476490A (en) * | 2016-11-10 | 2017-03-08 | 叶晨希 | A kind of multipurpose set square |
| CN106476497A (en) * | 2016-11-10 | 2017-03-08 | 陈征瀚 | A kind of Multifunctional angle scale |
| CN110774805A (en) * | 2019-11-06 | 2020-02-11 | 陕西科技大学 | Compasses for teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |