CN203697779U - Pie chart drawing device for Economics teaching - Google Patents
Pie chart drawing device for Economics teaching Download PDFInfo
- Publication number
- CN203697779U CN203697779U CN201420070985.0U CN201420070985U CN203697779U CN 203697779 U CN203697779 U CN 203697779U CN 201420070985 U CN201420070985 U CN 201420070985U CN 203697779 U CN203697779 U CN 203697779U
- Authority
- CN
- China
- Prior art keywords
- locating
- pie chart
- hollow disc
- rod
- hollow disk
- 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 relates to a pie chart drawing device for Economics teaching. The pie chart drawing device comprises a hollow disc and a locating rod. Three to six supporting rods are fixedly arranged inside the hollow disc. One end of each supporting rod is arranged in the center of the hollow disc in a collected mode, and the other end of each supporting rod is evenly distributed on the inner wall of the hollow disc. A locating pillar is arranged in the center of the hollow disc. Thirty-six or seventy-two evenly-distributed grooves are formed outside the hollow disc. A lug ring is arranged at one end of the locating rod. The locating pillar is sleeved with the lug ring which is in rotating connection with the locating pillar. A locating device is connected to the other end of the locating rod in a sliding mode. The locating device is provided with protrusions which are clamped in the grooves in a matched mode. A locating pillar is arranged on the lower portion of each supporting rod. An anti-skid silicone rubber mat is fixedly arranged at the bottom of each supporting rod. According to the pie chart drawing device for Economics teaching, angle adjustment is realized through rotation of the locating rod, the protrusions on the locating device are clamped in the grooves so that the locating rod can be fixed, and a pie chart can be drawn accurately; one locating pillar is arranged on the lower portion of each supporting rod, so that the stability of the pie chart drawing device in the drawing process is guaranteed.
Description
Technical field
The utility model relates to economics education technical field, especially a kind of Teaching of Economics pie chart renderer.
Background technology
In the time that Economics Courses is imparted knowledge to students, teacher need to explain to the corresponding relation between ratio with drawing with coloured chalk pie chart on blackboard.The method of traditional painted cake figure, completely with sensation picture, cause figure inaccurate outside, also have teachers association to draw circle with the general plectane of drawing, but due to the special media of blackboard, often traditional picture plectane is difficult to fix, and easily skids, not only troublesome poeration, and be not easy alignment, affect teaching efficiency.
Utility model content
The technical problems to be solved in the utility model is: for overcome in prior art teacher when the painted cake figure completely with sensation picture, cause the inaccurate problem of figure, the utility model provides a kind of Teaching of Economics pie chart renderer, by the rotation adjusting angle of backstay, block groove by the projection on locator and fix backstay, can accurate Drawing pie chart.
The utility model solves the technical scheme that its technical problem adopts: a kind of Teaching of Economics pie chart renderer, comprise: hollow disk and backstay, in described hollow disk, be fixed with 3-6 root support bar, described support bar one end collects in open circles disk center, the other end is distributed on hollow disk inwall, described open circles disk center is provided with locating dowel, described hollow disk peripheral hardware has 36 or 72 uniform grooves, described backstay one end is provided with earrings, earrings is set in locating dowel and is rotatably connected with locating dowel, the described backstay other end slidably connects locator, described locator is provided with the projection with groove fit clamping.
In order to fix better pie chart renderer, under each support bar, be equipped with a locating dowel.
In order to prevent that pie chart renderer from sliding on blackboard, is fixed with the silicone rubber pad of anti-skidding under described support bar.
The beneficial effects of the utility model are: a kind of Teaching of Economics pie chart renderer that the utility model provides, by the rotation adjusting angle of backstay, fix backstay by obtaining the protruding groove that blocks on locator, can accurate Drawing pie chart, under each support bar, be equipped with a locating dowel, guaranteed the stability of the drawing of pie chart renderer.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the stereogram of Teaching of Economics of the present utility model pie chart renderer.
In figure: 1. hollow disk, 2. backstay, 3. support bar, 4. locating dowel, 5. groove, 6. earrings, 7. locator, 8. projection, 9. silicone rubber pad.
The specific embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 1, a kind of Teaching of Economics pie chart renderer, comprise hollow disk 1 and backstay 2, in hollow disk 1, be fixed with 3 support bars 3, support bar 3 one end collect in hollow disk 1 center, the other end is distributed on hollow disk 1 inwall, hollow disk 1 center is provided with locating dowel 4, outside hollow disk 1, be provided with 36 uniform grooves 5, backstay 2 one end are provided with earrings 6, earrings 6 is set in locating dowel 4 and is rotatably connected with locating dowel 4, backstay 2 other ends slidably connect locator 7, locator 7 is provided with the projection 8 that coordinates clamping with groove 5, each support bar is equipped with a locating dowel 4 for 3 times, support bar is fixed with the silicone rubber pad 9 of anti-skidding for 3 times.
When use, the locating dowel 4 of pie chart renderer center is aimed to the center that needs to draw pie chart on blackboard, first draw a line along backstay 2, then regulate the angle of backstay, make being in equal proportions of its ratio of shared 360 ° and this shared whole pie chart in region, again draw a line along backstay 2, draw successively, until complete.
Take above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this utility model technological thought, carry out various change and modification completely.The technical scope of this utility model is not limited to the content on description, must determine its technical scope according to claim scope.
Claims (3)
1. Teaching of Economics pie chart renderer, is characterized in that: comprise hollow disk (1) and backstay (2),
In described hollow disk (1), be fixed with 3-6 root support bar (3), described support bar (3) one end collects in hollow disk (1) center, the other end is distributed on hollow disk (1) inwall, described hollow disk (1) center is provided with locating dowel (4), outer 36 or 72 the uniform grooves (5) that are provided with of described hollow disk (1)
Described backstay (2) one end is provided with earrings (6), earrings (6) is set in locating dowel (4) and is above rotatably connected with locating dowel (4), described backstay (2) other end slidably connects locator (7), and described locator (7) is provided with the projection (8) that coordinates clamping with groove (5).
2. Teaching of Economics as claimed in claim 1 pie chart renderer, is characterized in that: under each support bar (3), be equipped with a locating dowel (4).
3. Teaching of Economics as claimed in claim 2 pie chart renderer, is characterized in that: the silicone rubber pad (9) that is fixed with anti-skidding under described support bar (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070985.0U CN203697779U (en) | 2014-02-18 | 2014-02-18 | Pie chart drawing device for Economics teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070985.0U CN203697779U (en) | 2014-02-18 | 2014-02-18 | Pie chart drawing device for Economics teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203697779U true CN203697779U (en) | 2014-07-09 |
Family
ID=51048269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420070985.0U Expired - Fee Related CN203697779U (en) | 2014-02-18 | 2014-02-18 | Pie chart drawing device for Economics teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203697779U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111845165A (en) * | 2020-08-06 | 2020-10-30 | 日照职业技术学院 | Economic management is with portable teaching device |
-
2014
- 2014-02-18 CN CN201420070985.0U patent/CN203697779U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111845165A (en) * | 2020-08-06 | 2020-10-30 | 日照职业技术学院 | Economic management is with portable teaching device |
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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: 20140709 Termination date: 20150218 |
|
| EXPY | Termination of patent right or utility model |