CN202319540U - Multipurpose ruler for teaching - Google Patents
Multipurpose ruler for teaching Download PDFInfo
- Publication number
- CN202319540U CN202319540U CN2011204531035U CN201120453103U CN202319540U CN 202319540 U CN202319540 U CN 202319540U CN 2011204531035 U CN2011204531035 U CN 2011204531035U CN 201120453103 U CN201120453103 U CN 201120453103U CN 202319540 U CN202319540 U CN 202319540U
- Authority
- CN
- China
- Prior art keywords
- ruler
- protractor
- teaching
- guide channel
- center
- 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
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model provides a multipurpose ruler for teaching, and belongs to the field of teaching tools. The ruler comprises a protractor and a straight rule; the middle of the straight rule is provided with a guide channel; the central point of the protractor is provided with a support disc hinged with the center of the protractor; one end of the guide channel is provided with a through hole communicated with the guide channel; a positioning knob is arranged in the guide channel; and the guide channel is connected with the center of the support disc through the positioning knob. Compared with the prior art, the multipurpose ruler has the characteristics of reasonable design, simple structure, convenience for use, capacity of improving teaching efficiency and the like.
Description
Technical field
The utility model relates to a kind of teaching aid, specifically a kind of teaching multipurpose ruler.
Background technology
On mathematics class, the angle of drawing different angles is the problems that often run into during teacher teaches, and normally reserves a bit with pen earlier when drawing now; Finishing horizontal line with ruler from this point; Survey angle with protractor then, with pen it has been drawn again, on blackboard, drawn very trouble like this.But present protractor and ruler are single products all, carry inconvenience.In addition, also need draw the circle of different-diameter size on the mathematics class, this need draw with wooden compasses, and very inconvenience like this operates.Just reduced efficiency of teaching thus.
Summary of the invention
The technical assignment of the utility model is the deficiency to prior art, and a kind of teaching multipurpose ruler reasonable in design, simple in structure is provided.
The utility model solves the technical scheme that its technical problem adopted: comprise protractor and ruler; The ruler middle part is provided with the guiding road; The protractor center position is provided with support disk and is hinged with its center; Said guiding road one end is provided with through hole and coupled logical, and guiding is provided with positioning knob in the road, and the guiding road is connected with the support disk center through positioning knob.
The support disk size matches with ruler.
Ruler is provided with scale.
The utility model compared with prior art, the beneficial effect that is produced is:
1), have characteristics such as reasonable in design, simple in structure, easy to use, time saving and energy saving, can make things convenient for teacher or student to carry out the drafting at different angles, and can make the angle of drafting comparatively accurate.
2), when not drawing special angle, can also be practical, and can draw the circle of different-diameter size very easily as ruler, accomplish the purpose that a chi is used more.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model.
Among the figure: 1, through hole, 2 scales, 3, ruler, 4, positioning knob, 5, the guiding road, 6, protractor, 7, support disk.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done following the detailed description.
Shown in accompanying drawing; A kind of teaching multipurpose ruler of the utility model, its structure comprise protractor 6 and ruler 3, and ruler 3 middle parts are provided with guiding road 5; Protractor 6 center position are provided with support disk 7 and are hinged with its center; Said guiding road 5 one ends are provided with through hole 1 and coupled logical, and guiding is provided with positioning knob 4 in the road 5, and guiding road 5 is connected with support disk 7 centers through positioning knob 4.
Support disk 7 sizes match with ruler 3.Ruler 3 is provided with scale 2.
Can measure the size of different angles through protractor.Can draw straight line through ruler, the swing ruler through the indicating graduation on the protractor, can be drawn out the angle of required angle.Draw circular the time, regulate positioning knob,, judge and requiredly draw circular radius and position, then chalk is placed on to rotate a circle in the through hole of road one side that leads and gets final product according to the scale on the ruler.
A kind of its processing and fabricating of teaching multipurpose ruler of the utility model is simple and convenient, and processing and fabricating gets final product shown in the by specification accompanying drawing.
Except that the described technical characterictic of specification, be this professional's known technology.
Claims (3)
- One kind the teaching multipurpose ruler; Comprise protractor and ruler; Ruler middle part is provided with the guiding road, it is characterized in that the protractor center position is provided with support disk and is hinged with its center, and said guiding road one end is provided with through hole and coupled logical; Guiding is provided with positioning knob in the road, and the guiding road is connected with the support disk center through positioning knob.
- 2. a kind of teaching multipurpose ruler according to claim 1 is characterized in that the support disk size matches with ruler.
- 3. a kind of teaching multipurpose ruler according to claim 1 is characterized in that ruler is provided with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204531035U CN202319540U (en) | 2011-11-16 | 2011-11-16 | Multipurpose ruler for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204531035U CN202319540U (en) | 2011-11-16 | 2011-11-16 | Multipurpose ruler for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202319540U true CN202319540U (en) | 2012-07-11 |
Family
ID=46431532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204531035U Expired - Fee Related CN202319540U (en) | 2011-11-16 | 2011-11-16 | Multipurpose ruler for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202319540U (en) |
-
2011
- 2011-11-16 CN CN2011204531035U patent/CN202319540U/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: 20120711 Termination date: 20121116 |