CN2670132Y - Multipurpose teaching ruler - Google Patents
Multipurpose teaching ruler Download PDFInfo
- Publication number
- CN2670132Y CN2670132Y CNU2003201055545U CN200320105554U CN2670132Y CN 2670132 Y CN2670132 Y CN 2670132Y CN U2003201055545 U CNU2003201055545 U CN U2003201055545U CN 200320105554 U CN200320105554 U CN 200320105554U CN 2670132 Y CN2670132 Y CN 2670132Y
- Authority
- CN
- China
- Prior art keywords
- ruler
- utility
- model
- angles
- screw
- 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 multipurpose teaching ruler which is composed of a main ruler 1, a secondary ruler 2, a screw collar 3, a wood screw 4 and a chalk clamp 5, wherein the main ruler 1 is connected with the secondary ruler 2 by the screw collar 3. The wood screw 4 arranged on the secondary ruler 2 is used for fastening the chalk clamp 5. The utility model uses the method that the main ruler is used for drawing straight lines and the secondary ruler rotates to draw circles, semicircles, acute angles, obtuse angles, vertical angles, lattices, etc., and can be used for demonstrating the size of angles so that the teaching is convenient. The utility model has the advantages of simple and convenient practical operation, simple material and easy manufacture. The material of the utility model can be replaced by woods with the Convenient material usage. The multipurpose teaching ruler can be used for demonstrating in the mathematics and the Chinese, and can be used for drawing the grid of which the shape like Chinese character 'tian', straight lines, line segments, circles, vertical angles, obtuse angles, acute angles, etc. The utility model is suitable for wide application.
Description
Technical field:
The utility model relates to a kind of educational aid, particularly a kind of multipurpose educational chi.
Background technology:
Last class hour need be with multiple teaching aid, as: ruler, compasses, set square is cumbersome, has brought burden to teacher, and usually to leave behind the same for this reason.
Technical scheme:
The purpose of this utility model is to provide a kind of multipurpose educational chi, overcomes to use multiple teaching aid in the teaching, can finish multiple pattern at short notice, and is easy to operate, improved quality of instruction effectively.
The purpose of this utility model is to realize like this, it is made up of main scale (1), attached chi (2), screw ring (3), wood screw (4), chalk folder (5), main scale (1) is with attached chi (2), be connected by screw ring (3), on attached chi (2), there is wood screw (4) to clamp chalk folder (5), on main scale (1) and attached chi (2), scale arranged.
The utility model is rotation owing to adopted with main scale picture straight line with attached chi, draws circle, semicircle, and acute angle, the obtuse angle, the right angle, the size at demonstration such as lattice angle is convenient to teaching.This utility model technology has practical operation simply, conveniently, and material simply is easy to do, and replaces with timber, draws materials conveniently, and is simple and easy to do, demonstration is easily gone in subjects such as mathematics Chinese language, draws matts, straight line, line segment, circle, the right angle, the obtuse angle, acute angles etc. are well suited for extensive use.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is further specified.
Embodiment
As shown in the figure, the utility model is made up of main scale 1, attached chi 2, screw ring 3, wood screw 4, chalk folder 5, and main scale 1 has wood screw 4 clamping chalks to press from both sides 5 on attached chi 2 with attached chi 2, be connected by screw ring 3.At main scale 1, attached chi 2 is that to draw every 10mm be a scale to two battens different in size, be fixed on the main scale center with a screw ring 3, with wood screw 4 and chalk folder 5 chalk is fixed on the side of 30mm position of attached chi, diameter is 600mm, adjusts the degree of tightness of folder chalk by wood screw.
Claims (2)
1, a kind of multipurpose educational chi, it is made up of main scale (1), attached chi (2), screw ring (3), wood screw (4), chalk folder (5), it is characterized in that: main scale (1) is with attached chi (2), be connected by screw ring (3), on attached chi (2), there is wood screw (4) to clamp chalk folder (5), on main scale (1) and attached chi (2), scale arranged.
2, according to the described a kind of multipurpose educational chi of claims, it is characterized in that: at main scale (1), attached chi (2) is that every 10mm is a scale on two battens different in size, be fixed on the main scale center with a screw ring 3, wood screw 4 and chalk folder 5 is fixed on the side of 30mm position of attached chi, and diameter is 600mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201055545U CN2670132Y (en) | 2003-11-22 | 2003-11-22 | Multipurpose teaching ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201055545U CN2670132Y (en) | 2003-11-22 | 2003-11-22 | Multipurpose teaching ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2670132Y true CN2670132Y (en) | 2005-01-12 |
Family
ID=34474363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201055545U Expired - Fee Related CN2670132Y (en) | 2003-11-22 | 2003-11-22 | Multipurpose teaching ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2670132Y (en) |
-
2003
- 2003-11-22 CN CNU2003201055545U patent/CN2670132Y/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 | ||
| 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 |