CN201400025Y - Teaching ruler - Google Patents
Teaching ruler Download PDFInfo
- Publication number
- CN201400025Y CN201400025Y CN2009200239252U CN200920023925U CN201400025Y CN 201400025 Y CN201400025 Y CN 201400025Y CN 2009200239252 U CN2009200239252 U CN 2009200239252U CN 200920023925 U CN200920023925 U CN 200920023925U CN 201400025 Y CN201400025 Y CN 201400025Y
- Authority
- CN
- China
- Prior art keywords
- arc
- set square
- teaching
- utility
- shaped
- 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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Abstract
The utility model discloses a teaching ruler, which comprises a triangular ruler. Arc-shaped rulers are arranged on the two sides of the triangular ruler. The arc-shaped sides of the two arc-shaped rulers can be connected together to form a semi-circle. The two arc-shaped rulers are correspondingly inserted into two grooves arranged on the two sides of the triangular ruler respectively through aninserted block. Angle indexes are arranged on the arc-shaped rulers. Since the technical scheme is adopted, the utility model has the advantages that the functions of the triangular ruler and the protractor are integrated into a whole body, the assembling and the disassembling are easy, and the carrying and the use are very convenient.
Description
Technical field
The utility model relates to a kind of teaching aid, specifically, relates to a kind of teaching gauge.
Background technology
Set square and protractor are teaching aids commonly used in the teachers ' teaching.Generally, set square and protractor are two instruments independently respectively, and like this, when professor's correlated curriculum, the teacher will carry textbook simultaneously, relevant teaching aids such as prepare lessons material and set square and protractor, carry and use very inconvenient.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defective, provides a kind of and carries, teaching gauge easy to use.
For achieving the above object, the technical scheme that the utility model adopted is:
A kind of teaching gauge comprises set square, it is characterized in that: be respectively equipped with the arc chi on two limits of described set square, the arc limit of two arc chis can be to being connected into a semicircle.
As improvement of the technical scheme, described two arc chis are plugged in the slot on two limits of set square by the inserted block correspondence respectively.
As the further improvement of technique scheme, described arc chi is provided with angle index.
Owing to adopted above-mentioned technical scheme, the utility model integrates set square and protractor, and dismounting is simple and easy, carries with very easy to use.
The invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Accompanying drawing is the structural representation of teaching gauge among the embodiment of the present utility model.
Among the figure: 1-arc chi, 2-inserted block, 3-slot, 4-set square.
Specific embodiment l
A kind of teaching gauge as shown in drawings, is respectively equipped with the arc chi on two limits of set square 4, and the arc limit of two arc chis can be to being connected into a semicircle.Described two arc chis are plugged in the slot on two limits of set square by the inserted block correspondence respectively.Described arc chi is provided with angle index.
With arc chi 1 is example, and it is plugged in the slot 3 on a limit of set square by inserted block 2 correspondences.
The utility model integrates set square and protractor, and set square 4 both can use separately, also can install two arc chis and use as protractor, and dismounting is simple and easy, carries with very easy to use.
Claims (3)
1, a kind of teaching gauge comprises set square (4), it is characterized in that: be respectively equipped with the arc chi on two limits of described set square (4), the arc limit of two arc chis can be to being connected into a semicircle.
2, a kind of teaching gauge according to claim 1 is characterized in that: described two arc chis are plugged in the slot on two limits of set square by the inserted block correspondence respectively.
3, a kind of teaching gauge according to claim 1 is characterized in that: described arc chi is provided with angle index.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200239252U CN201400025Y (en) | 2009-03-18 | 2009-03-18 | Teaching ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200239252U CN201400025Y (en) | 2009-03-18 | 2009-03-18 | Teaching ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201400025Y true CN201400025Y (en) | 2010-02-10 |
Family
ID=41659821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200239252U Expired - Fee Related CN201400025Y (en) | 2009-03-18 | 2009-03-18 | Teaching ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201400025Y (en) |
-
2009
- 2009-03-18 CN CN2009200239252U patent/CN201400025Y/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: 20100210 Termination date: 20110318 |