CN202935034U - Movable ruler used in mathematics - Google Patents
Movable ruler used in mathematics Download PDFInfo
- Publication number
- CN202935034U CN202935034U CN 201220646705 CN201220646705U CN202935034U CN 202935034 U CN202935034 U CN 202935034U CN 201220646705 CN201220646705 CN 201220646705 CN 201220646705 U CN201220646705 U CN 201220646705U CN 202935034 U CN202935034 U CN 202935034U
- Authority
- CN
- China
- Prior art keywords
- mathematics
- ruler used
- handle
- movable ruler
- rulers
- 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 movable ruler used in mathematics, and belongs to a mathematics teaching appliance. The movable ruler used in mathematics is composed of two paralleled rulers and the two rulers are connected in a movable mode through a vertical shaft. The ruler used in mathematics is characterized in that a handle is mounted on the vertical shaft, an angle scale is mounted at a joint of the vertical shaft and the handle, sliding grooves are formed in the paralleled rulers, and chalk covers are arranged on the sliding grooves. The movable ruler used in mathematics has the advantages of being simple in design, convenient to use and carry, and capable of drawing lines, circles, and triangles with different angles.
Description
Technical field
The utility model relates to the teaching apparatus for mathematics field, relates in particular to a kind of mathematical activity chi.
Background technology
In the mathematical education process, usually need to setting-out on blackboard, draw circle or draw the figures of different angles, in order to satisfy the demand of teaching, before class teacher need to prepare more teaching aid, has caused the inconvenience of using and carrying, the patent No. 200920008753.1, although be also to be aided with a small amount of accessory by two chis arranged side by side to produce multinomial instructional function, this utility model complex structure, and the picture bowlder can not change size, and there is no handle, inconvenient operation.
Summary of the invention
The utility model provides a kind of mathematical activity chi for the prior art deficiency.
The technical solution of the utility model is: a kind of mathematical activity chi, be flexibly connected by vertical pivot by two chis arranged side by side, wherein mounting handle on described vertical pivot, be equipped with angle scale at vertical pivot and handle junction, being provided with chute on chi side by side, chalk sleeve is installed on chute.
The utlity model has following advantage: simplicity of design, use, easy to carry, but setting-out, draw circle, also can draw the triangle of different angles.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is made the following instructions.
As shown in Figure 1, a kind of mathematical activity chi is flexibly connected by vertical pivot 2 by two chis arranged side by side 1, and mounting handle 4 on described vertical pivot 2 wherein is equipped with angle scale 3 at vertical pivot 2 and handle 4 junctions, is being provided with chute 5 on chi 1 side by side, and chalk sleeve 6 is installed on chute 5.
Claims (1)
1. a mathematical activity chi, be flexibly connected by vertical pivot by two chis arranged side by side, it is characterized in that: mounting handle on described vertical pivot, at vertical pivot and handle junction, angle scale is installed, and being provided with chute on chi side by side, chalk sleeve is installed on chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220646705 CN202935034U (en) | 2012-11-30 | 2012-11-30 | Movable ruler used in mathematics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220646705 CN202935034U (en) | 2012-11-30 | 2012-11-30 | Movable ruler used in mathematics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202935034U true CN202935034U (en) | 2013-05-15 |
Family
ID=48319290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220646705 Expired - Fee Related CN202935034U (en) | 2012-11-30 | 2012-11-30 | Movable ruler used in mathematics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202935034U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904885A (en) * | 2016-05-22 | 2016-08-31 | 湖南城市学院 | Teaching ruler for mathematics |
-
2012
- 2012-11-30 CN CN 201220646705 patent/CN202935034U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904885A (en) * | 2016-05-22 | 2016-08-31 | 湖南城市学院 | Teaching ruler for mathematics |
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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: 20130515 Termination date: 20131130 |