CN201333879Y - Compasses absorbed on lecture course tablet - Google Patents
Compasses absorbed on lecture course tablet Download PDFInfo
- Publication number
- CN201333879Y CN201333879Y CNU2008201931299U CN200820193129U CN201333879Y CN 201333879 Y CN201333879 Y CN 201333879Y CN U2008201931299 U CNU2008201931299 U CN U2008201931299U CN 200820193129 U CN200820193129 U CN 200820193129U CN 201333879 Y CN201333879 Y CN 201333879Y
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- CN
- China
- Prior art keywords
- compasses
- center
- arc
- bar
- circle
- 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
Compasses absorbed on a lecture course tablet belong to educational supplies. The upper end of a round rod (7) is sleeved with one end of a radius ruler (4) which is connected with an arc drawing handle (5); a circle-center locating device (6) is installed at the top of the arc drawing handle (5); an arc brush pen-holder (2) is sleeved with the other end of the radius ruler (4); a radius locating device (3) is installed at the top of the arc brush pen-holder (2); and the arc brush pen-holder (2) is connected with a brush (1). A compasses adsorbing body (9) is installed at the lower end of the round rod (7); a magnet (8) is arranged inside the compasses adsorbing body (9); and the round rod (7) passes through a center of the compasses adsorbing body (9) in a sliding manner. The compasses adsorbing body is positioned on the lecture course tablet and is not easy to move by utilizing the principle of the magnet, the round rod is inserted, the radius ruler is adjusted optionally, and the arc drawing handle of the compasses is rotated so as to complete the circle drawing working, thereby being simple and easy; and the compasses can be taken back after class.
Description
Technical field
The utility model relates to a kind of realia, particularly a kind of compasses that are adsorbed on the lecture board.
Technical background
In school, student and teacher know that every compasses the class hour teacher who uses compasses are extremely inconvenient teaching aids, take up that two hands move together on the lecture board, finish the picture sired results and do, and bring back the dais then and place, and go round and begin again, again and again.
Summary of the invention
The purpose of this utility model is to be deficiencies of extremely inconvenient teaching aid at above-mentioned compasses, proposes a kind of compasses that are adsorbed on the lecture board, and compasses directly are adsorbed on the lecture board, arduous action that does not take up and down and trouble again and again.
The purpose of this utility model is achieved in that a kind of compasses that are adsorbed on the lecture board, by center of circle bar, circular arc paintbrush bar, paintbrush is formed, and the upper end of described center of circle bar is set with an end of radius chi, is connected with picture arc handle on the radius chi, the top of drawing the arc handle is equipped with center of circle positioner, the other end of described radius chi is sleeved on the circular arc paintbrush bar, and the top of circular arc paintbrush bar is equipped with the radius positioner, and circular arc paintbrush bar is connected with paintbrush.
The lower end of the center of circle described in the utility model bar is equipped with the compasses adsorbent, in the compasses adsorbent magnet is installed, and center of circle bar slides and passes the center of compasses adsorbent.
The utility model has the advantages that: the principle of utilizing magnet, the compasses adsorbent is positioned at difficult moving on the lecture board, the center of circle bar of no frame compasses of the present utility model inserts arbitrarily to be adjusted radius chi turn compasses and draws the arc handle and finish the picture sired results and do, simple, easily get final product to regaining compasses more after class.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Among the figure, paintbrush 1, circular arc paintbrush bar 2, radius positioner 3, radius chi 4, picture arc handle 5, center of circle positioner 6, center of circle bar 7, magnet 8, compasses adsorbent 9.
The specific embodiment
Below in conjunction with the description of drawings and the specific embodiment the utility model is described in further detail.
As shown in Figure 1, a kind of compasses that are adsorbed on the lecture board of present embodiment, by center of circle bar 7, circular arc paintbrush bar 2, paintbrush 1 is formed, it is characterized in that: the upper end of described center of circle bar 7 is set with an end of radius chi 4, be connected with picture arc handle 5 on the radius chi 4, the top of drawing arc handle 5 is equipped with center of circle positioner 6, and the other end of described radius chi 4 is sleeved on the circular arc paintbrush bar 2, the top of circular arc paintbrush bar 2 is equipped with radius positioner 3, and circular arc paintbrush bar 2 is connected with paintbrush 1.The lower end of described center of circle bar 7 is equipped with compasses adsorbent 9, and magnet 8 is installed in the compasses adsorbent 9, and center of circle bar 7 slides and passes the center of compasses adsorbent 9.Present embodiment utilizes the principle of magnet, the compasses adsorbent is positioned at difficult moving on the lecture board, the center of circle bar of no frame compasses of the present utility model inserts arbitrarily to be adjusted radius chi scale turn compasses and draws the arc handle and finish the picture sired results and do, simple, easily get final product to regaining compasses more after class.
Claims (2)
1. compasses that are adsorbed on the lecture board, by center of circle bar (7), circular arc paintbrush bar (2), paintbrush (1) is formed, it is characterized in that: the upper end of described center of circle bar (7) is set with an end of radius chi (4), be connected with picture arc handle (5) on the radius chi (4), the top of drawing arc handle (5) is equipped with center of circle positioner (6), the other end of described radius chi (4) is sleeved on the circular arc paintbrush bar (2), the top of circular arc paintbrush bar (2) is equipped with radius positioner (3), and circular arc paintbrush bar (2) is connected with paintbrush (1).
2. a kind of compasses that are adsorbed on the lecture board according to claim 1, it is characterized in that: the lower end of described center of circle bar (7) is equipped with compasses adsorbent (9), magnet (8) is installed in the compasses adsorbent (9), and center of circle bar (7) slides and passes the center of compasses adsorbent (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201931299U CN201333879Y (en) | 2008-11-26 | 2008-11-26 | Compasses absorbed on lecture course tablet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201931299U CN201333879Y (en) | 2008-11-26 | 2008-11-26 | Compasses absorbed on lecture course tablet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201333879Y true CN201333879Y (en) | 2009-10-28 |
Family
ID=41285521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201931299U Expired - Fee Related CN201333879Y (en) | 2008-11-26 | 2008-11-26 | Compasses absorbed on lecture course tablet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201333879Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973454A (en) * | 2018-06-29 | 2018-12-11 | 王小兰 | A kind of magnetic absorption type compasses and its application method |
-
2008
- 2008-11-26 CN CNU2008201931299U patent/CN201333879Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973454A (en) * | 2018-06-29 | 2018-12-11 | 王小兰 | A kind of magnetic absorption type compasses and its application method |
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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: 20091028 Termination date: 20101126 |