CN104442120A - Compasses special for teachers - Google Patents
Compasses special for teachers Download PDFInfo
- Publication number
- CN104442120A CN104442120A CN201310419094.1A CN201310419094A CN104442120A CN 104442120 A CN104442120 A CN 104442120A CN 201310419094 A CN201310419094 A CN 201310419094A CN 104442120 A CN104442120 A CN 104442120A
- Authority
- CN
- China
- Prior art keywords
- compasses
- connection rod
- circles
- teacher
- special
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L9/00—Circular curve-drawing or like instruments
- B43L9/02—Compasses
- B43L9/04—Beam compasses
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The invention relates to compasses special for teachers. Circles which are drawn by the existing compasses are not standard and beautiful, and the circle drawing speed is relatively slow, and the teaching efficiency is effected; moreover when the drawn circles do not comply with the requirements or are wrong, the circles are not convenient to timely erase and modify and thus a lot of inconvenience is brought to teacher's teaching. The compasses special for teachers comprise a compass with a tip connected with a suction disk which can suck the compasses on a blackboard; a connection rod which is connected with the compass by an universal connection piece, wherein a groove is formed on the outer side of the connection rod; an eraser block which is arranged on the upper end of the connection rod; a chalk fixation bin which is arranged on the lower end of the connection rod; and a ruler which is chucked in the groove of the connection rod. The connection rod is cylindrical or rectangular shape. The compasses are scientifically designed and convenient to use, the circles drawn by the compasses are standard and beautiful, the circle drawing speed is relatively quick, the teaching efficiency is high; moreover the drawn circles which do not comply with the requirements or are wrong can be convenient to timely erase and modify, and a lot of convenience is brought to teacher's teaching.
Description
Technical field
The present invention relates to a kind of compasses, particularly a kind of teacher's special compasses.
Background technology
Teacher hold existing big compasses write on blackboard, draw round in, because compasses stiff end is most advanced and sophisticated, behind location when pivoting, most advanced and sophisticated always some is unstable, even can slippage one segment distance, easily circle picture obtain nonstandard also unsightly, and draw circular velocity comparatively slowly, affect efficiency of attending class; In addition, when drawn circle is undesirable or picture is staggered the time, be also not easy to erasing in time and modify, bring inconvenience to teachers ' teaching.
Summary of the invention
The technical problem to be solved in the present invention is the above-mentioned defect how overcoming prior art, provides a kind of teacher's special compasses, and this teacher's special compasses draws circle standard, attractive in appearance, and it is very fast to draw circular velocity, and efficiency of attending class is higher; In addition, be convenient to erasing in time and time update picture mistake or undesirable circle, use to teacher and bring many facilities.
For solving the problems of the technologies described above, this teacher special compasses, comprises
Compasses, its tip is connected with the sucker for being inhaled on blackboard by compasses;
Connecting rod, connects compasses by universal connecting components, has groove outside it;
Wipe block, be arranged on small end;
Chalk fixed bin, is arranged on connecting rod lower end; And
Ruler, is fastened in the groove of connecting rod.
Design like this, by sucker accurate stable location, is convenient to measure required size in time with ruler, draws circle standard, attractive in appearance, and it is very fast to draw circular velocity, and efficiency of attending class is higher; In addition, be convenient to erasing in time and time update picture mistake or undesirable circle, use to teacher and bring many facilities.。
As optimization, connecting rod is cylindrical or cuboid.Design like this, be convenient to processing and easy to use.
Teacher's special compasses of the present invention, design science, easy to use, draw circle standard, attractive in appearance, and it is very fast to draw circular velocity, efficiency of attending class is higher; In addition, be convenient to erasing in time and time update picture mistake or undesirable circle, use to teacher and bring many facilities.There is good actual application value and promotional value.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, this teacher special compasses is described further:
Fig. 1 is the structural representation of this teacher special compasses.
In figure: 1 for wipe block, 2 for connecting rod, 3 for chalk fix, 4 for ruler, 5 for compasses, 6 be sucker.
Detailed description of the invention
For making object of the present invention, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, the present invention is described in more detail.
As shown in Figure 1, this teacher special compasses, comprises
Compasses 5, its tip is connected with for compasses 5 are inhaled the sucker 6 on blackboard;
Connecting rod 2, connects compasses 5 by universal connecting components, has groove outside it;
Wipe block 1, be arranged on connecting rod 2 upper end;
Chalk fixed bin 3, is arranged on connecting rod 2 lower end; And
Ruler 4, is fastened in the groove of connecting rod 2.
Connecting rod 2 is cuboid.
Above-mentioned detailed description of the invention is only concrete case of the present invention; scope of patent protection of the present invention includes but not limited to product form and the style of above-mentioned detailed description of the invention; any meet claims of the present invention teacher's special compasses and any person of an ordinary skill in the technical field to its suitable change done or modification, all should fall into scope of patent protection of the present invention.
Claims (2)
1. teacher's special compasses, is characterized in that: comprise
Compasses (5), its tip is connected with the sucker (6) for being inhaled on blackboard by compasses (5);
Connecting rod (2), connects compasses (5) by universal connecting components, has groove outside it;
Wipe block (1), be arranged on connecting rod (2) upper end;
Chalk fixed bin (3), is arranged on connecting rod (2) lower end; And
Ruler (4), is fastened in the groove of connecting rod (2).
2. teacher's special compasses according to claim 1, is characterized in that: described connecting rod (2) is cylindrical or cuboid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310419094.1A CN104442120A (en) | 2013-09-16 | 2013-09-16 | Compasses special for teachers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310419094.1A CN104442120A (en) | 2013-09-16 | 2013-09-16 | Compasses special for teachers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104442120A true CN104442120A (en) | 2015-03-25 |
Family
ID=52889174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310419094.1A Pending CN104442120A (en) | 2013-09-16 | 2013-09-16 | Compasses special for teachers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104442120A (en) |
-
2013
- 2013-09-16 CN CN201310419094.1A patent/CN104442120A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
|
| WD01 | Invention patent application deemed withdrawn after publication |