CN204196523U - Mathematic teaching rule - Google Patents
Mathematic teaching rule Download PDFInfo
- Publication number
- CN204196523U CN204196523U CN201420659585.3U CN201420659585U CN204196523U CN 204196523 U CN204196523 U CN 204196523U CN 201420659585 U CN201420659585 U CN 201420659585U CN 204196523 U CN204196523 U CN 204196523U
- Authority
- CN
- China
- Prior art keywords
- auxiliary chi
- main scale
- rotating shaft
- fixed rotating
- 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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Abstract
The utility model belongs to education or demonstration equipment field, is specifically related to a kind of Mathematic teaching rule, comprises ruler, protractor and fixing select, ruler comprises main scale and auxiliary chi, during use, can adjust main scale, auxiliary chi position, use as the teaching aid such as set square, ruler.The function of set square, protractor, ruler and compasses has focused on a teaching aid by the utility model, and structure is simple, is easy to carry, multiple functional.
Description
Technical field
The utility model belongs to education or demonstration equipment field, is specifically related to a kind of Mathematic teaching rule.
Background technology
Mathematics teacher explains in geometric knowledge process, needs the figure of making on blackboard compared with standard to demonstrate, and deepens the directly perceived understanding of student to geometric knowledge, set square and protractor are the most frequently used drafting instrument, in present teaching aid, set square and compasses are and are used alone, and carry inconvenience.
Utility model content
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, provides a kind of mathematics teaching aid integrated by the Plotting Function of set square, protractor etc.
For achieving the above object, basis is practical is newly achieved through the following technical solutions:
A kind of Mathematic teaching rule, comprise ruler, protractor and fixing select, ruler comprises main scale-I and main scale-II, main scale-I is provided with chute, in chute, chalk holder is installed, main scale-I and main scale-II front end are respectively equipped with corresponding aperture, main scale-I and main scale-II are fixedly connected by fixed rotating shaft, ruler also comprises auxiliary chi-I, auxiliary chi-II, auxiliary chi-III and auxiliary chi-IV, auxiliary chi-II and auxiliary chi-III one end are rotatably connected in fixed rotating shaft-I respectively, auxiliary chi-II other end rotates with auxiliary chi-I and connects, and auxiliary chi-III other end rotates with auxiliary chi-IV and connects.
One end that auxiliary chi-I, auxiliary chi-IV and main scale-I do not connect is respectively equipped with hook, and main scale-II rear end is provided with fixed rotating shaft-II, and fixed rotating shaft-I and fixed rotating shaft-II are fixed on main scale-II.
Fixed rotating shaft-I place is provided with 30 degree of angles and miter angle-I, 30 degree of angles and miter angle-I and rotates with fixed rotating shaft-I and connect, and fixed rotating shaft-II place is provided with miter angle-II and 60 degree of angles, and miter angle-II and 60 degree of angles are rotated with fixed rotating shaft-II and connected.
Protractor is provided with a through hole, and fixed rotating shaft-I is provided with a through hole, and the through hole internal diameter size on through hole and fixed rotating shaft-I and gim peg external diameter match, and gim peg is provided with an aperture.
Main scale-I, main scale-II, auxiliary chi-I, auxiliary chi-II, auxiliary chi-III, auxiliary chi-IV and protractor are equipped with scale.
When using the utility model, can be used alone ruler and protractor, also ruler and protractor can be combined use by fixing select: when being used alone, namely can be used as ruler to use, or adjusting auxiliary chi-I, auxiliary chi-II and 30 degree of angles, 60 degree of angles uses as elongated right angle triangle, or adjust auxiliary chi-III, auxiliary chi-IV and miter angle-I, miter angle-II as the use of isosceles right angle triangle, or adjustment main scale-I, chalk is installed at chalk holder 6 place and draws circular arc use; When combinationally using, by aperture determination initial point on fixing select, draw angle with the use of main scale-I.
Compared with prior art, the utility model has following beneficial effect:
The function of set square, protractor, ruler and compasses has focused on a teaching aid by the utility model, and structure is simple, is easy to carry, multiple functional.
Accompanying drawing explanation
Mark in the content expressed each width accompanying drawing of the utility model description below and figure is briefly described:
Fig. 1: be the utility model deployed configuration schematic diagram.
Fig. 2: be the utility model foldable structure schematic diagram.
In figure: 1, auxiliary chi-I, 2, auxiliary chi-II, 3, hook, 4, main scale-I, 5, chute, 6, chalk holder, 7, protractor, 8,30 degree of angles, 9, miter angle-I, 10, fixed rotating shaft-I, 11, auxiliary chi-III, 12, main scale-II, 13, miter angle-II, 14,60 degree of angles, 15, auxiliary chi-IV, 16, through hole, 17, fixing select, 18, fixed rotating shaft-II, 19, ruler.
Detailed description of the invention
Contrast accompanying drawing below, by the description to optimum embodiment, detailed description of the invention of the present utility model is described in further detail.
Mathematic teaching rule, comprise ruler 19, protractor 7 and fixing select 17, ruler 20 comprises main scale-I 4 and main scale-II 12, main scale-I 4 is provided with chute 5, in chute 5, chalk holder 6 is installed, main scale-I 4 and main scale-II 12 front end are respectively equipped with corresponding aperture, main scale-I 4 and main scale-II 12 are fixedly connected by fixed rotating shaft 10, ruler 20 also comprises auxiliary chi-I 1, auxiliary chi-II 2, auxiliary chi-III 11 and auxiliary chi-IV 15, auxiliary chi-II 2 and auxiliary chi-III 11 one end are rotatably connected in fixed rotating shaft-I 10 respectively, auxiliary chi-II 2 other end rotates with auxiliary chi-I 1 and connects, auxiliary chi-III 11 other end rotates with auxiliary chi-IV 15 and connects.
One end that auxiliary chi-I 1, auxiliary chi-IV 15 and main scale-I 4 do not connect is respectively equipped with hook 3, and main scale-II 12 rear end is provided with fixed rotating shaft-II 18, and fixed rotating shaft-I 10 and fixed rotating shaft-II 18 are fixed on main scale-II 12, and hook 3 and fixed rotating shaft-II 18 match.
Fixed rotating shaft-I 10 place is provided with 30 degree of angles 8 and miter angle-I 9,30 degree of angles 8 and miter angle-I 9 rotate with fixed rotating shaft-I 10 and connect, fixed rotating shaft-II 18 place is provided with miter angle-II 13 and 60 degree of angle 14, and miter angle-II 13 and 60 degree of angle 14 is rotated with fixed rotating shaft-II 18 and connected.
Protractor 7 is provided with a through hole 16, and fixed rotating shaft-I 10 is provided with a through hole, and the through hole internal diameter size on through hole 16 and fixed rotating shaft-I 10 and gim peg 17 external diameter match, and gim peg 17 is provided with an aperture.
Main scale-I 4, main scale-II 12, auxiliary chi-I 1, auxiliary chi-II 2, auxiliary chi-III 11, auxiliary chi-IV 15 and protractor 7 are equipped with corresponding scale.
When using the utility model, can be used alone ruler 19 and protractor 7, also ruler 19 and protractor 7 can be combined use by fixing select 17: when being used alone, namely can be used as ruler to use, or adjust auxiliary chi-I 1, angle 14, auxiliary chi 8,60 degree ,-II 2 and 30 degree of angle uses as elongated right angle triangle, or adjust auxiliary chi-III 11, auxiliary chi-IV 15 and miter angle-I 9, miter angle-II 13 uses as isosceles right angle triangle, or adjustment main scale-I 4, chalk is installed at chalk holder 6 place and draws circular arc use; When combinationally using, by aperture determination initial point on fixing select 17, draw angle with the use of main scale-I 4.
To sum up, the function of set square, protractor, ruler and compasses has focused on a teaching aid by the utility model, and structure is simple, is easy to carry, multiple functional.
The above is exemplarily described the utility model; obvious the utility model specific implementation is not subject to the restrictions described above; no matter be do any change in its shape or structure; as long as have employed the improvement of the various unsubstantialities that method of the present utility model is conceived and technical scheme is carried out; or design of the present utility model and technical scheme directly applied to other occasion, all within protection domain of the present utility model without to improve.
Claims (5)
1. a Mathematic teaching rule, comprise ruler (19), protractor (7) and fixing select (17), it is characterized in that, described ruler (19) comprises main scale-I (4) and main scale-II (12), main scale-I (4) is provided with chute (5), in chute (5), chalk holder (6) is installed, main scale-I (4) and main scale-II (12) front end are respectively equipped with corresponding aperture, main scale-I (4) and main scale-II (12) are fixedly connected by fixed rotating shaft (10), described ruler (19) also comprises auxiliary chi-I (1), auxiliary chi-II (2), auxiliary chi-III (11) and auxiliary chi-IV (15), auxiliary chi-II (2) and auxiliary chi-III (11) one end are rotatably connected in fixed rotating shaft-I (10) respectively, auxiliary chi-II (2) other end rotates with auxiliary chi-I (1) and connects, auxiliary chi-III (11) other end rotates with auxiliary chi-IV (15) and connects.
2. Mathematic teaching rule according to claim 1, it is characterized in that: one end that described auxiliary chi-I (1), auxiliary chi-IV (15) and main scale-I (4) do not connect is respectively equipped with hook (3), main scale-II (12) rear end is provided with fixed rotating shaft-II (18), fixed rotating shaft-I (10) and fixed rotating shaft-II (18) are fixed on main scale-II (12), and described hook (3) and fixed rotating shaft-II (18) match.
3. according to claim 1 or Mathematic teaching rule according to claim 2, it is characterized in that: described fixed rotating shaft-I (10) place is provided with 30 degree of angles (8) and miter angle-I (9), 30 degree of angles (8) and miter angle-I (9) rotate with fixed rotating shaft-I (10) and connect, described fixed rotating shaft-II (18) place is provided with miter angle-II (13) and 60 degree of angle (14), and miter angle-II (13) and 60 degree of angle (14) is rotated with fixed rotating shaft-II (18) and connected.
4. Mathematic teaching rule according to claim 1, it is characterized in that: described protractor (7) is provided with a through hole (16), fixed rotating shaft-I (10) is provided with a through hole, through hole internal diameter size on through hole (16) and fixed rotating shaft-I (10) and gim peg (17) external diameter match, and described gim peg (17) is provided with an aperture.
5. Mathematic teaching rule according to claim 1, it is characterized in that, described main scale-I (4), main scale-II (12), auxiliary chi-I (1), auxiliary chi-II (2), auxiliary chi-III (11), auxiliary chi-IV (15) and protractor (7) are equipped with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420659585.3U CN204196523U (en) | 2014-11-06 | 2014-11-06 | Mathematic teaching rule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420659585.3U CN204196523U (en) | 2014-11-06 | 2014-11-06 | Mathematic teaching rule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204196523U true CN204196523U (en) | 2015-03-11 |
Family
ID=52654518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420659585.3U Expired - Fee Related CN204196523U (en) | 2014-11-06 | 2014-11-06 | Mathematic teaching rule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204196523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106079979A (en) * | 2016-08-05 | 2016-11-09 | 张旭光 | A kind of multifunctional mathmatical coordinatometer |
-
2014
- 2014-11-06 CN CN201420659585.3U patent/CN204196523U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106079979A (en) * | 2016-08-05 | 2016-11-09 | 张旭光 | A kind of multifunctional mathmatical coordinatometer |
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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: 20150311 Termination date: 20151106 |
|
| EXPY | Termination of patent right or utility model |