CN202368184U - Multifunctional composite teaching tool - Google Patents
Multifunctional composite teaching tool Download PDFInfo
- Publication number
- CN202368184U CN202368184U CN2011205141845U CN201120514184U CN202368184U CN 202368184 U CN202368184 U CN 202368184U CN 2011205141845 U CN2011205141845 U CN 2011205141845U CN 201120514184 U CN201120514184 U CN 201120514184U CN 202368184 U CN202368184 U CN 202368184U
- Authority
- CN
- China
- Prior art keywords
- expansion link
- teaching tool
- multifunctional composite
- angle
- holddown groove
- 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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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model relates to a teaching tool, in particular to a multifunctional composite teaching tool which can be used for drawing an angle and a circle. The multifunctional composite teaching tool comprises a fixing groove, and is characterized in that a bump is arranged at the central position of the fixing groove and is connected with an expansion link with scales, wherein a piece of chalk is arranged at the tail end of the expansion link; and the expansion link is connected with an angle fixing device which is arranged above the fixing groove and can move. The multifunctional composite teaching tool has the beneficial effects that an angle and a circle which are required can be accurately and simply drawn on a blackboard, the teaching tool is simple in structure, convenient to operate and high in accuracy, and great convenience is brought to the teaching of teachers.
Description
(1) technical field
The utility model relates to a kind of educational aid, particularly a kind ofly not only can do the angle but also can draw round multifunctional and composite type teaching aid.
(2) background technology
The teenager is the flower of motherland, is the future of country, and the quality of the quality of education is the basic of its talent's quality of decision.In daily teaching; Natural sciences subjects such as mathematics class often need and be done the angle at the blackboard upper drawing circle; Yet blackboard can not can be penetrated as on paper, doing, so educational compasses ubiquity in the past many shortcomings such as fulcrum is unstable, use is extremely inconvenient, mapping is inaccurate.Therefore, invented a kind of multifunctional and composite type teaching aid.
(3) summary of the invention
The utility model is in order to remedy the deficiency of prior art, and a kind of simple in structure, easy to operate, multifunctional and composite type teaching aid that the degree of accuracy is high is provided.
The utility model is realized through following technical scheme:
A kind of multifunctional and composite type teaching aid; Comprise holddown groove, it is characterized in that: the center is equipped with convexity on the said holddown groove, convexity be connected with one have a scale expansion link; The expansion link end is equipped with chalk, and expansion link is connected with the movably angle fixing device that is arranged at the holddown groove top.
Said holddown groove inside is equipped with magnetite.
The beneficial effect of the utility model is: can be more accurately simply on blackboard, make angle and the circle that needs, and simple in structure, easy to operate, the degree of accuracy is high, for teacher's teaching brings great convenience.
(4) description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing is the structural representation of the utility model;
Among the figure, 1 holddown groove, 2 convexities, 3 expansion links, 4 chalks, 5 angle fixing devices, 6 magnetites.
(5) specific embodiment
Accompanying drawing is a kind of specific embodiment of the utility model.This embodiment comprises holddown groove 1, on the holddown groove 1 center be equipped with protruding 2, protruding 2 be connected with one have a scale expansion link 3, expansion link 3 ends are equipped with chalk 4, expansion link 3 is connected with the movably angle fixing device 5 that is arranged at holddown groove 1 top.Holddown groove 1 inside is equipped with magnetite 6.
Adopt a kind of multifunctional and composite type teaching aid of the utility model, during use, expansion link 3 is pulled out suitable length; Rotate to needed angle through angle fixing device 5, angle fixing device 5 is fixed, then with expansion link 3 pushed home; Chalk 4 just can the nature the straight line that draws; The holding device invariant position is done a horizontal line again, can obtain needed angle.Draw bowlder, only need device is fixed on the blackboard, it is radius of a circle that expansion link 3 is pulled out Len req, and rotating a circle gets final product.Holddown groove 1 and protruding 2 is used for fixing the center of whole device, and it is fixing reliable more, accurate that magnetite 6 can help the user install.
Claims (2)
1. multifunctional and composite type teaching aid; Comprise holddown groove (1); It is characterized in that: said holddown groove (1) is gone up the center convexity (2) is installed; Protruding (2) be connected with one have a scale expansion link (3), expansion link (3) end is equipped with chalk (4), expansion link (3) is connected with the movably angle fixing device (5) that is arranged at holddown groove (1) top.
2. a kind of multifunctional and composite type teaching aid according to claim 1 is characterized in that: said holddown groove (1) inside is equipped with magnetite (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205141845U CN202368184U (en) | 2011-12-12 | 2011-12-12 | Multifunctional composite teaching tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205141845U CN202368184U (en) | 2011-12-12 | 2011-12-12 | Multifunctional composite teaching tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202368184U true CN202368184U (en) | 2012-08-08 |
Family
ID=46591904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205141845U Expired - Fee Related CN202368184U (en) | 2011-12-12 | 2011-12-12 | Multifunctional composite teaching tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202368184U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252939A (en) * | 2015-10-29 | 2016-01-20 | 桂林华森电力科技有限公司 | Scriber |
| CN108284685A (en) * | 2018-01-05 | 2018-07-17 | 辛丰翼 | A kind of high school mathematics multifunctional drawing tool |
-
2011
- 2011-12-12 CN CN2011205141845U patent/CN202368184U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252939A (en) * | 2015-10-29 | 2016-01-20 | 桂林华森电力科技有限公司 | Scriber |
| CN108284685A (en) * | 2018-01-05 | 2018-07-17 | 辛丰翼 | A kind of high school mathematics multifunctional drawing tool |
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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: 20120808 Termination date: 20121212 |