CN201951094U - Drawing board - Google Patents
Drawing board Download PDFInfo
- Publication number
- CN201951094U CN201951094U CN2011200126853U CN201120012685U CN201951094U CN 201951094 U CN201951094 U CN 201951094U CN 2011200126853 U CN2011200126853 U CN 2011200126853U CN 201120012685 U CN201120012685 U CN 201120012685U CN 201951094 U CN201951094 U CN 201951094U
- Authority
- CN
- China
- Prior art keywords
- guide
- guide hole
- board
- board body
- sucker
- 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 drawing board comprising a board body, wherein a circular guide hole is formed on the board body; a guide groove is formed on the circumference of the guide hole; a circular guide disc capable of rotating along the guide hole is arranged in the guide hole in a matched way; the edge of the guide disc is matched with the guide groove; four pen point through holes are formed on the guide disc from the centre to the edge in the form of a straight line; and a sucker is arranged on the back face of the board body. The drawing board disclosed by the utility model has the advantages that circles with different diameters can be drawn by enabling a chalk to penetrate through any pen point through hole and rotating the guide disc along the guide hole, and thus the drawing board is convenient to use; the board body can be sucked on a blackboard through the sucker on the back face of the board so that the sucker has a fixing effect and the board body is not easy to slide off during drawing; scales are marked on the board body so that the diameters of the circles can be known more conveniently; and the drawing efficiency is increased, so as to increase the teaching efficiency.
Description
Technical field
The utility model relates to a kind of drawing board of picture shape when being used for mathematical education.
Background technology
At present, being used in the teaching paint circular chart board is the circular hole that several selected radiuses are set on chart board mostly, each circular hole can only be drawn a circle, the drawing needs of the different numerous circles of radius that therefore are far from suitable, and it is bigger to take the space of a whole page, easily slide when on blackboard, painting, use very inconvenient.
Summary of the invention
For solving above technical deficiency, the utility model provides a kind of space of a whole page of can only using less, and the drawing board of different radii circle can conveniently draw on blackboard.
The utility model is realized by following measure:
A kind of drawing board of the present utility model, comprise plate body, described plate body is provided with circular guide holes, the circumference of described guide hole is provided with guide groove, being furnished with one in the guide hole can be along the circular godet of guide hole rotation, described godet edge matches with guide groove, is provided with four nib perforation by middle mind-set edge line on the godet, and the described plate body back side is provided with sucker.
Above-mentioned godet surface is marked with scale at nib perforation place straight line.
The beneficial effects of the utility model are: 1. chalk passed any one nib perforation, godet rotated the circle of different-diameter size that can draw along guide hole, and easy to use.2. the sucker at the plate body back side can be inhaled plate body on blackboard, plays fixation, is difficult for landing during drawing.3. plate body is marked with scale, can know round diameter more easily.4. improve drawing efficiency, thereby improved efficiency of teaching.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1 plate body, 2 suckers, 3 godets, 4 guide holes, 5 guide grooves, the perforation of 6 nibs, 7 scales.
The specific embodiment
Be described further below in conjunction with embodiment and accompanying drawing:
A kind of drawing board of the present utility model, comprise plate body 1, plate body 1 is provided with circular guide holes 4, the circumference of described guide hole 4 is provided with guide groove 5, being furnished with one in the guide hole 4 can be along the circular godet 3 of guide hole 4 rotations, described godet 3 edges match with guide groove 5, are provided with four nib perforation 6 by middle mind-set edge line on the godet 3, and plate body 1 back side is provided with sucker 2.Godet 3 surfaces are marked with scale 7 at the nib 6 place straight lines of boring a hole.
The foregoing description is described to be in order to specify this patent; though describe by specific term in the literary composition; but can not limit the protection domain of this patent with this; being familiar with the personage of this technical field can be after the spirit of understanding this patent and principle change or revises it and reach equivalent purpose; and this equivalence change and modification all should be covered by the claim scope and define in the category.
Claims (2)
1. drawing board, comprise plate body, it is characterized in that: described plate body is provided with circular guide holes, the circumference of described guide hole is provided with guide groove, being furnished with one in the guide hole can be along the circular godet of guide hole rotation, described godet edge matches with guide groove, is provided with four nib perforation by middle mind-set edge line on the godet, and the described plate body back side is provided with sucker.
2. according to the described drawing board of claim 1, it is characterized in that: described godet surface is marked with scale at nib perforation place straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200126853U CN201951094U (en) | 2011-01-17 | 2011-01-17 | Drawing board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200126853U CN201951094U (en) | 2011-01-17 | 2011-01-17 | Drawing board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201951094U true CN201951094U (en) | 2011-08-31 |
Family
ID=44495219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200126853U Expired - Fee Related CN201951094U (en) | 2011-01-17 | 2011-01-17 | Drawing board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201951094U (en) |
-
2011
- 2011-01-17 CN CN2011200126853U patent/CN201951094U/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: 20110831 Termination date: 20120117 |