CN205588843U - Multi -functional ruler on layer is inhaled in area - Google Patents
Multi -functional ruler on layer is inhaled in area Download PDFInfo
- Publication number
- CN205588843U CN205588843U CN201521115234.7U CN201521115234U CN205588843U CN 205588843 U CN205588843 U CN 205588843U CN 201521115234 U CN201521115234 U CN 201521115234U CN 205588843 U CN205588843 U CN 205588843U
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- CN
- China
- Prior art keywords
- scale
- protractor
- main scale
- chi
- secondary chi
- 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 multi -functional ruler on layer is inhaled in area, including main scale, vice chi, radius proportion chi and protractor, multi -functional mathematical teaching material has focused on the function of set square, protractor, ruler and compasses on the teaching aid, when using as compasses, fill in main scale tip mounting hole with the chalk, tighten the pretension knob and step up, then with the sucking disc sureness of compasses runing rest at preset position, the teaching aid rotates again, circular arc promptly draws, when measurement angle spends, only need to regard as two limits can on two rulers, can also draw the straight line, all be equipped with soft magnetic stripe in main scale and vice chi bottom, the blackboard of imparting knowledge to students now is the steel sheet, has the magnetic teaching aid and can paste on the blackboard, the protractor that sets up on the main scale still can regard as the handle to use, help mr to hold the teaching aid and remove drawing straight line or angulation degree, convenient to use, not the time spent adsorbablely save the podium space at the blackboard edge, reduce mr's working strength.
Description
Technical field
This utility model relates to a kind of teaching aid, and the Multifunctional ruler of layer inhaled by a kind of band.
Background technology
At present, teacher is during mathematical education, commonly used teaching aid is mapped on blackboard, especially in geometric construction presentation process, can use set square teaching aid, compass teaching aid, protractor teaching aid etc., these teaching aid ratios are relatively decentralized, need to change back and forth during mapping, waste the instructional blocks of time of preciousness, and considerably increase the workload of teacher.And the most teaching aids is simultaneously placed on dais, occupies limited space, be also not easy to taking of teaching aid, the most neatly.
Utility model content
The purpose of this utility model is the Multifunctional ruler providing a kind of band to inhale layer, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the following technical scheme of this utility model offer:
The Multifunctional ruler of layer inhaled by a kind of band, including main scale, radius scale chi, protractor and secondary chi；A protractor angle scale it is provided with at described rotating shaft；Described protractor angle scale is fixing with main scale to be connected；It is equipped with scale on described main scale, secondary chi；The end of described main scale is provided with chalk adjusting means；Described secondary chi extends to protractor edge；Described secondary chi is provided with center graduation mark；The end of described secondary chi is provided with center of circle positioning device；The other end of described secondary chi is provided with and adds the pen cap；Hinge Radius scale on described main scale；Described secondary chi is provided with Radius scale fixing device.
As further program of the utility model: described centrage graduation mark passes protractor center, and overlaps with protractor scale.
As further program of the utility model: described in add the pen cap and be additionally provided with the pretension knob for pretension chalk.
As further program of the utility model: described radius scale chi is provided with scale.
As this utility model further scheme: described secondary chi lower surface is provided with the magnetosphere for attracting blackboard.
Compared with prior art, the beneficial effects of the utility model are: present configuration is simple, by ingenious rational design, a teaching aid is integrated with the function of compasses, protractor, set square and ruler, thus have only to carry the teaching aid of when teaching, and easy to use, the used time not can be adsorbed on blackboard edge, save space, dais, reduce the working strength of teacher.
Accompanying drawing explanation
Fig. 1 is the structural representation that the Multifunctional ruler of layer inhaled by band.
Fig. 2 is that the structural representation of magnetosphere distributed architecture in the Multifunctional ruler of layer inhaled by band.
In figure: 1-main scale, 11-protractor, 12-centering pin, 121-sucker, 13-main scale scale, 14-protractor scale, 15-pin, 2-pair chi, 21-pair chi scale, 22-center graduation mark, 23-adds the pen cap, 231-pretension knob, 24-clip, 3-radius scale chi.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the technical scheme of this patent is described in more detail.
Referring to Fig. 1-2, the Multifunctional ruler of layer inhaled by a kind of band, including main scale 1, radius scale chi 3, protractor 11 and secondary chi 2；Described main scale 1 is fixed with main scale scale 13；Described main scale 1 the other end is fixed with the centering pin 12 in the fixing center of circle；Described centering pin 12 end is sucker 121；Described centering pin 12 and sucker 121 junction are movable installation；When needs picture bowlder, sucker 121 is put in blackboard plane, is difficult to skid, position, the center of circle can be stablized；Described protractor 11 is provided with secondary chi 2 with center, main scale 1 joint by pin 15；Described secondary chi 2 extends to protractor 11 edge；Described secondary chi 2 is provided with center graduation mark 22；Described centrage graduation mark 22 is through protractor 11 center；Described center graduation mark 22 can overlap with protractor scale 14；When revolute chi 2, center graduation mark 22 also rotates with, and indication protractor 11 scale is exactly drawn or measured angular dimension, can judge the size of drawn angle；Described secondary chi 2 is fixed with secondary chi scale 21, such as, during the Len req on the limit drawing angle, can take by tolerance this moment；The other end of described secondary chi 2 is provided with and adds the pen cap 23；The described pen cap 23 that adds is additionally provided with the pretension knob 231 for pretension chalk, and rotating pretension knob 231 when chalk is put into wherein can step up chalk；Described secondary chi 2 lower surface is provided with the magnetosphere 4 for attracting blackboard, and magnetosphere 4 can be inhaled in blackboard plane, moreover it is possible to moves in blackboard plane under the stirring of teacher；Described pin 15 installation place is rotation and installs, it is achieved main scale 1 is rotatably connected with secondary chi 2, and this Multifunctional math teaching aid can be made with transparent material.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art is possessed, it is also possible to make a variety of changes on the premise of without departing from this patent objective.
Claims (5)
1. a Multifunctional ruler for layer inhaled by band, including main scale, radius scale chi, protractor, secondary chi and rotating shaft；It is characterized in that, at described rotating shaft, be provided with a protractor angle scale；Described protractor angle scale is fixing with main scale to be connected；It is equipped with scale on described main scale, secondary chi；The end of described main scale is provided with chalk adjusting means；Described secondary chi extends to protractor edge；Described secondary chi is provided with center graduation mark；The end of described secondary chi is provided with center of circle positioning device；The other end of described secondary chi is provided with and adds the pen cap；Hinge Radius scale on described main scale；Described secondary chi is provided with Radius scale fixing device.
The Multifunctional ruler of layer inhaled by band the most according to claim 1, it is characterised in that described secondary chi centrage graduation mark, through protractor center, can overlap with protractor scale.
The Multifunctional ruler of layer inhaled by band the most according to claim 1, it is characterised in that described in add the pen cap and be additionally provided with the pretension knob for pretension chalk.
The Multifunctional ruler of layer inhaled by band the most according to claim 1, it is characterised in that described secondary chi lower surface is provided with the magnetosphere for attracting blackboard.
The Multifunctional ruler of layer inhaled by band the most according to claim 1, it is characterised in that described radius scale chi is provided with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521115234.7U CN205588843U (en) | 2015-12-28 | 2015-12-28 | Multi -functional ruler on layer is inhaled in area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521115234.7U CN205588843U (en) | 2015-12-28 | 2015-12-28 | Multi -functional ruler on layer is inhaled in area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205588843U true CN205588843U (en) | 2016-09-21 |
Family
ID=56927377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521115234.7U Expired - Fee Related CN205588843U (en) | 2015-12-28 | 2015-12-28 | Multi -functional ruler on layer is inhaled in area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205588843U (en) |
-
2015
- 2015-12-28 CN CN201521115234.7U patent/CN205588843U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 Termination date: 20171228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |