CN202608358U - Folding ruler for teaching - Google Patents
Folding ruler for teaching Download PDFInfo
- Publication number
- CN202608358U CN202608358U CN 201220208675 CN201220208675U CN202608358U CN 202608358 U CN202608358 U CN 202608358U CN 201220208675 CN201220208675 CN 201220208675 CN 201220208675 U CN201220208675 U CN 201220208675U CN 202608358 U CN202608358 U CN 202608358U
- Authority
- CN
- China
- Prior art keywords
- teaching
- ruler
- folding
- rule
- transverse
- 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
Links
- 230000001788 irregular Effects 0.000 abstract description 4
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a folding ruler for teaching, which comprises a dividing ruler (2). The dividing ruler (2) is arranged on a transverse ruler (3). The transverse ruler (3) is connected with a folding ruler (6) through a rotating shaft (5). Two to sixteen round holes (1) are additionally and evenly arranged on the transverse ruler (3). The diameter of each round hole (1) is equal to the diameter of chalk. A level ball (4) is additionally arranged on the transverse ruler (3). The folding ruler for teaching has the advantages that the structure is simple, the functions are multiple, the folding ruler for teaching is convenient and practical, the horizontal line can be conveniently leveled, circles can be conveniently drawn on a blackboard, various irregular drawings can be drawn and the teaching and the use by teachers during classes are greatly facilitated; and the folding ruler for teaching is convenient to carry, the cost is low and the folding ruler for teaching can be better popularized and used in large area.
Description
Technical field
The utility model relates to a kind of technical field of mathematics teaching aid, is specifically related to a kind of teaching and uses folding rule.
Background technology
Teaching chi of the prior art is generally ruler or set square; Shape function relative fixed, but at irregular figures such as drawing polygonals be, very inconvenient; And in the teaching; Especially in mathematical education, usually need demonstrate various figures, so just need a kind of teaching chi of more convenient and quicker operation.
In addition, the compasses of prior art are the both arms compasses, as a kind of specific purpose tool of drawing circle or circular arc; A wherein arm of both arms compasses is a stiff end, the central point of just drawn circle or circular arc, and another arm is provided with writing implement; The track that is used for circle or circular arc; Distance between two arms is the radius of circle or circular arc, and this size need be measured by ruler, and is very inconvenient when reality is used.
The utility model content
The purpose of the utility model is the deficiency to prior art, provides a kind of diverse in function, teaching convenient and practical, with low cost to use folding rule.
The purpose of the utility model realizes through following technological means: folding rule is used in a kind of teaching, includes rule, and described rule is arranged on the crossfoot, and described crossfoot also is connected with folding rule through rotating shaft; Also evenly be provided with 2-16 circular hole on the described crossfoot, the diameter of described circular hole is set to the equal diameters with chalk.
Also be provided with horizontal pearl on the described crossfoot.
Still be connected with sucker in the described rotating shaft.
Compared with prior art the utlity model has following tangible advantage: this teaching is simple in structure with folding rule, diverse in function, convenient and practical; Levelling horizontal line easily; Can on blackboard, make things convenient for picture circle, can also draw various irregular figures, greatly facilitate teacher's use of on the classroom, imparting knowledge to students; In addition the utility model be convenient for carrying, with low cost, large tracts of land is promoted the use of preferably.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Among the figure, 1-circular hole, 2-rule, 3-crossfoot, the horizontal pearl of 4-, 5-rotating shaft, 6-folding rule.
The specific embodiment
Below in conjunction with the description of drawings and the specific embodiment the utility model is done further to describe in detail:
Folding rule is used in a kind of teaching as shown in Figure 1, includes rule 2, and described rule 2 is arranged on the crossfoot 3, and described crossfoot 3 also is connected with folding rule 6 through rotating shaft 5; Also evenly be provided with 2-16 circular hole 1 on the described crossfoot 3, the diameter of described circular hole 1 is set to the equal diameters with chalk.Be provided with like this, this teaching can be measured the length of drawn line segment through rule 2 with folding rule, can do the center of circle through fixed rotating shaft 5; Chalk is inserted in the circular hole 1, draw circle around the center of circle, can also draw the figure of various irregular angles through folding rule 6; Overall structure is simple, but diverse in function, greatly facilitates mathematics teacher's use of imparting knowledge to students; Also be convenient for carrying, with low cost, large tracts of land is promoted preferably.
Also be provided with horizontal pearl 4 on the described crossfoot 3.Be provided with like this, this teaching can be found horizontal level easily with folding rule, thereby better draws cut-off line or line segment.
Still be connected with sucker in the described rotating shaft 5.Be provided with like this, can be better the fixing center of circle, the result of use of raising the utility model.
In a word, the utility model provides a kind of diverse in function, teaching convenient and practical, with low cost to use folding rule.The above; Be merely a part of specific embodiment of the utility model; The protection domain of the utility model is not limited thereto; Any technical staff who is familiar with the present technique field is in the technical scope that the utility model discloses, and the variation that can expect easily or replacement all should be encompassed within the protection domain of the utility model.
Claims (3)
1. folding rule is used in a teaching, includes rule (2), it is characterized in that: described rule (2) is arranged on the crossfoot (3), and described crossfoot (3) also is connected with folding rule (6) through rotating shaft (5); Also evenly be provided with 2-16 circular hole (1) on the described crossfoot (3), the diameter of described circular hole (1) is set to the equal diameters with chalk.
2. folding rule is used in a kind of teaching according to claim 1, it is characterized in that: also be provided with horizontal pearl (4) on the described crossfoot (3).
3. folding rule is used in a kind of teaching according to claim 1, it is characterized in that: described rotating shaft still is connected with sucker on (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220208675 CN202608358U (en) | 2012-05-10 | 2012-05-10 | Folding ruler for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220208675 CN202608358U (en) | 2012-05-10 | 2012-05-10 | Folding ruler for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202608358U true CN202608358U (en) | 2012-12-19 |
Family
ID=47342085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220208675 Expired - Fee Related CN202608358U (en) | 2012-05-10 | 2012-05-10 | Folding ruler for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202608358U (en) |
-
2012
- 2012-05-10 CN CN 201220208675 patent/CN202608358U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20130510 |