CN202862935U - Mathematical combination rule - Google Patents
Mathematical combination rule Download PDFInfo
- Publication number
- CN202862935U CN202862935U CN 201220388761 CN201220388761U CN202862935U CN 202862935 U CN202862935 U CN 202862935U CN 201220388761 CN201220388761 CN 201220388761 CN 201220388761 U CN201220388761 U CN 201220388761U CN 202862935 U CN202862935 U CN 202862935U
- Authority
- CN
- China
- Prior art keywords
- rule
- mathematical combination
- teaching
- flexible
- tape
- 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 discloses a mathematical combination rule comprising a rule body with graduations. The mathematical combination rule is characterized in that a flexible rule and a straight rule with graduations are respectively connected at the two ends of the rule body in a movable mode, angles and the graduations are respectively marked on the two sides of the flexible rule, a clamping buckle fixed with the flexible rule is arranged on the rule body, the distance from the arranged position of the clamping buckle to the flexible rule end is 1/Pi , a movable sliding block is arranged on the straight rule, and a chalk sleeve hole is formed in the sliding block. The mathematical combination rule is simple and reasonable in design, and favorable for the teaching of teaching staff who can draw straight lines according to teaching demands, measure angles and draw angles, and draw circles; and after the mathematical combination rule is used, the flexible rule is straightened, and then the three rules are folded together, and the mathematical combination rule is convenient to carry.
Description
Technical field
The utility model relates to the teaching appliance field, particularly a kind of mathematical combination chi.
Background technology
The mathematics teacher usually needs to carry multiple educational aid in teaching process, such as drawing tools such as compasses, protractor, rulers, according to the teaching requirement, frequently change, and has caused teaching and administrative staff personnel's inconvenience.
The utility model content
A kind of mathematical combination chi that the utility model provides according to the deficiencies in the prior art.
The technical solution of the utility model is: a kind of mathematical combination chi, comprise with rule body 1, wherein, be connected with respectively a tape and one at the two ends of described chi body and be with graduated ruler, wherein the tape both sides indicate respectively angle and scale, be provided with the buckle that fixes with tape at described chi body apart from 1/ π place of tape chi end, be provided with movable slide block at ruler, slide block is provided with the chalk trepanning.
The utility model is compared with existing technology, have the following advantages: the utility model simplicity of design is reasonable, the teaching and administrative staff can draw straight line according to teaching demand, also can take measurement of an angle and draw the triangle of different angles, also can draw the circle of different radii, make things convenient for teaching and administrative staff's teaching, after the use tape be stretched, then with three ruler foldings together, easy to carry.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
With reference to Figure of description the utility model is described in detail below:
As shown in Figure 1, a kind of mathematical combination chi, comprise with rule body 1, wherein, be connected with respectively a tape 2 and one at the two ends of described chi body 1 and be with graduated ruler 3, wherein tape 2 both sides indicate respectively angle and scale, are provided with the buckle 4 that fixes with tape 2 at described chi body 1 apart from 1/ π place of tape 2 chi ends, be provided with movable slide block 5 at ruler 3, slide block 5 is provided with chalk trepanning 6.
Claims (1)
1. mathematical combination chi, comprise with the rule body, it is characterized in that: be connected with respectively a tape and one at the two ends of described chi body and be with graduated ruler, wherein the tape both sides indicate respectively angle and scale, be connected with the buckle that fixes with tape at described chi body apart from 1/ π place of tape chi end, be provided with movable slide block at ruler, slide block is provided with the chalk trepanning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220388761 CN202862935U (en) | 2012-08-01 | 2012-08-01 | Mathematical combination rule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220388761 CN202862935U (en) | 2012-08-01 | 2012-08-01 | Mathematical combination rule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202862935U true CN202862935U (en) | 2013-04-10 |
Family
ID=48029683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220388761 Expired - Fee Related CN202862935U (en) | 2012-08-01 | 2012-08-01 | Mathematical combination rule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202862935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109515037A (en) * | 2018-12-05 | 2019-03-26 | 富川瑶族自治县第二小学 | A kind of combination ruler |
-
2012
- 2012-08-01 CN CN 201220388761 patent/CN202862935U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109515037A (en) * | 2018-12-05 | 2019-03-26 | 富川瑶族自治县第二小学 | A kind of combination ruler |
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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: 20130410 Termination date: 20130801 |