CN204414906U - A kind of board for teaching mathematics - Google Patents
A kind of board for teaching mathematics Download PDFInfo
- Publication number
- CN204414906U CN204414906U CN201520057780.3U CN201520057780U CN204414906U CN 204414906 U CN204414906 U CN 204414906U CN 201520057780 U CN201520057780 U CN 201520057780U CN 204414906 U CN204414906 U CN 204414906U
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- CN
- China
- Prior art keywords
- sliding tray
- chi
- crossfoot
- plate body
- perpendicular 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.)
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Abstract
The utility model relates to a kind of board for teaching mathematics, comprise plate body, described plate body is square tabular, the described plate body edge side of being provided with shape frame, the upper and lower of described frame is provided with the first sliding tray and the second sliding tray that notch points to inner side respectively, the inner side of described frame is provided with perpendicular chi, the upper end of described perpendicular chi and lower end stretch in described first sliding tray and described second sliding tray respectively, and described perpendicular chi can move left and right along the first sliding tray and the second sliding tray in the inner side level of described frame; Described perpendicular chi is provided with the 3rd vertical sliding tray, described perpendicular chi is provided with crossfoot, one end of described crossfoot embeds in described 3rd sliding tray, and the other end of described crossfoot can rotate around the junction of itself and described perpendicular chi; The bottom of described frame is provided with the standing groove placing paintbrush.Hinge structure, the utility model is drawn and is not easily rocked, and can carry out picture circle, and draw precisely in drawing processes.
Description
Technical field
The utility model relates to a kind of board for teaching mathematics.
Background technology
Mapping explanation demonstration on blackboard is often needed in the process of mathematical education; Usually, teacher on the other hand holds fixing ruler high, and a hand-held chalk mapping, operates like this and waste time and energy, and the time has been grown arm and can produce and ache, and affects the quality of instruction of teacher, also increases the body burden of teacher.
In prior art, application number is 201220552605.8, and Authorization Notice No. is " board for teaching mathematics " of CN 202965666U, mainly there is following defect: hook easily causes board of education in drawing processes built on the sand, easily to rock; Moreover in drawing processes, usually need picture circle, and this technical scheme does not possess this function.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of picture and not easily rocks, and can carry out picture circle in drawing processes, and board for teaching mathematics accurately of drawing.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of board for teaching mathematics, comprise plate body, described plate body is square tabular, the described plate body edge side of being provided with shape frame, the upper and lower of described frame is provided with the first sliding tray and the second sliding tray that notch points to inner side respectively, the inner side of described frame is provided with perpendicular chi, the upper end of described perpendicular chi and lower end stretch in described first sliding tray and described second sliding tray respectively, and described perpendicular chi can move left and right along the first sliding tray and the second sliding tray in the inner side level of described frame; Described perpendicular chi is provided with the 3rd vertical sliding tray, described perpendicular chi is provided with crossfoot, one end of described crossfoot embeds in described 3rd sliding tray, and the other end of described crossfoot can rotate around the junction of itself and described perpendicular chi; The bottom of described frame is provided with the standing groove placing paintbrush.
The beneficial effects of the utility model are: perpendicular chi can move forward and backward along the first sliding tray and the second sliding tray in the inner side level of described frame, carries out vertical curve setting-out by perpendicular chi; The other end of crossfoot can rotate around the junction of itself and described perpendicular chi, in drawing processes except horizontal line setting-out, can also carry out the setting-out of oblique line and circle, make this application of installation wider.
On the basis of technique scheme, the utility model can also do following improvement.
Further, described crossfoot comprises chi body, mobile handle, first magnet piece and the second magnet piece, described mobile handle is cylindric, one end of described chi body is sleeved on the middle part of described mobile handle, the other end of described chi body can rotate around described mobile handle, described first magnet piece is fixedly placed in described mobile handle near the side of described plate body, and described mobile handle near one end of described plate body and described first magnet piece can vertically movement be embedded in described 3rd sliding tray, described second magnet piece is fixedly placed in the described chi body other end near the side of described plate body, described plate body, perpendicular chi and crossfoot are made by ferroalloy.
The beneficial effect of above-mentioned further scheme is adopted to be: chi body moves around mobile handle, can realize drawing circle in drawing processes, first magnet piece and mobile handle removable in the 3rd sliding tray, make crossfoot adjustable and easily locate, described second magnet piece is convenient to chi body and is located in picture circle, horizontal line or ray procedure, firm chi body, makes setting-out more accurate.
Further, length scale shallow slot is all carved with in the both sides of the edge of described perpendicular chi and crossfoot, and the side away from described chi body is provided with angle index shallow slot to described mobile handle.
Further, described crossfoot is provided with arrow shallow slot on one end of described mobile handle.
Adopt the beneficial effect of above-mentioned further scheme to be: can setting-out be carried out according to length scale shallow slot, angle index shallow slot and arrow shallow slot or draw circle, improve setting-out or draw the precision of circle.
Further, four angles, edge place of described plate body is provided with sucker.
The beneficial effect of above-mentioned further scheme is adopted to be: sucker can firm plate body, improves the precision and efficiency of drawing a picture.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of board for teaching mathematics of the utility model;
Fig. 2 is the structural representation of crossfoot.
In accompanying drawing, the list of parts representated by each label is as follows:
1, plate body, 2, frame, the 3, first sliding tray, the 4, second sliding tray, 5, perpendicular chi, the 6, the 3rd sliding tray;
7, crossfoot, 71, chi body, 72, mobile handle, the 73, first magnet piece, the 74, second magnet piece;
8, standing groove, 9, length scale shallow slot, 10, angle index shallow slot, 11, arrow shallow slot, 12, sucker.
Detailed description of the invention
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, a kind of board for teaching mathematics, comprise plate body 1, described plate body 1 is square tabular, the described plate body 1 edge side of being provided with shape frame 2, the upper and lower of described frame 2 is provided with the first sliding tray 3 and the second sliding tray 4 that notch points to inner side respectively, the inner side of described frame 2 is provided with perpendicular chi 5, the upper end of described perpendicular chi 5 and lower end stretch in described first sliding tray 3 and described second sliding tray 4 respectively, and described perpendicular chi 5 can move left and right along the first sliding tray 3 and the second sliding tray 4 in the inner side level of described frame 2; Described perpendicular chi 5 is provided with the 3rd vertical sliding tray 6, described perpendicular chi 5 is provided with crossfoot 7, one end of described crossfoot 7 embeds in described 3rd sliding tray 6, and the other end of described crossfoot 7 can rotate around the junction of itself and described perpendicular chi 5; The bottom of described frame 2 is provided with the standing groove 8 placing paintbrush.
As shown in Figure 2, described crossfoot 7 comprises chi body 71, mobile handle 72, first magnet piece 73 and the second magnet piece 74, described mobile handle 72 is in cylindric, one end of described chi body 71 is sleeved on the middle part of described mobile handle 72, the other end of described chi body 71 can rotate around described mobile handle 72, described first magnet piece 73 is fixedly placed in the side of described mobile handle 72 near described plate body 1, and described mobile handle 72 near one end of described plate body 1 and described first magnet piece 73 can vertically movement be embedded in described 3rd sliding tray 6, described second magnet piece 74 is fixedly placed in described chi body 71 other end near the side of described plate body 1, described plate body 1, perpendicular chi 5 and crossfoot 7 are made by ferroalloy.
Length scale shallow slot 9 is all carved with in the both sides of the edge of described perpendicular chi 5 and crossfoot 7, and the one end away from described chi body 71 is provided with angle index shallow slot 10 to described mobile handle 72.
Described crossfoot 7 is provided with arrow shallow slot 11 on the side of described mobile handle 72.
Four angles, edge place of described plate body 1 is provided with sucker 12.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. a board for teaching mathematics, it is characterized in that: comprise plate body (1), described plate body (1) is square tabular, described plate body (1) the edge side of being provided with shape frame (2), the upper and lower of described frame (2) is provided with the first sliding tray (3) and the second sliding tray (4) that notch points to inner side respectively, the inner side of described frame (2) is provided with perpendicular chi (5), the upper end of described perpendicular chi (5) and lower end stretch in described first sliding tray (3) and described second sliding tray (4) respectively, described perpendicular chi (5) can move left and right along the first sliding tray (3) and the second sliding tray (4) in the inner side level of described frame (2), described perpendicular chi (5) is provided with the 3rd vertical sliding tray (6), described perpendicular chi (5) is provided with crossfoot (7), one end of described crossfoot (7) embeds in described 3rd sliding tray (6), and the other end of described crossfoot (7) can rotate around the junction of itself and described perpendicular chi (5), the bottom of described frame (2) is provided with the standing groove (8) placing paintbrush.
2. a kind of board for teaching mathematics according to claim 1, it is characterized in that: described crossfoot (7) comprises chi body (71), mobile handle (72), first magnet piece (73) and the second magnet piece (74), described mobile handle (72) is in cylindric, one end of described chi body (71) is sleeved on the middle part of described mobile handle (72), the other end of described chi body (71) can rotate around described mobile handle (72), described first magnet piece (73) is fixedly placed in the side of described mobile handle (72) near described plate body (1), and described mobile handle (72) near one end of described plate body (1) and described first magnet piece (73) can vertically movement be embedded in described 3rd sliding tray (6), described second magnet piece (74) is fixedly placed in the side of described chi body (71) other end near described plate body (1).
3. a kind of board for teaching mathematics according to claim 2, is characterized in that: described plate body (1), perpendicular chi (5) and crossfoot (7) are made by ferroalloy.
4. a kind of board for teaching mathematics according to claim 2, it is characterized in that: length scale shallow slot (9) is all carved with in the both sides of the edge of described perpendicular chi (5) and crossfoot (7), the side away from described chi body (71) is provided with angle index shallow slot (10) to described mobile handle (72).
5. a kind of board for teaching mathematics according to claim 3, is characterized in that: described crossfoot (7) is provided with arrow shallow slot (11) on one end of described mobile handle (72).
6. a kind of board for teaching mathematics according to any one of Claims 1-4, is characterized in that: four angles, edge place of described plate body (1) is provided with sucker (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520057780.3U CN204414906U (en) | 2015-01-27 | 2015-01-27 | A kind of board for teaching mathematics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520057780.3U CN204414906U (en) | 2015-01-27 | 2015-01-27 | A kind of board for teaching mathematics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204414906U true CN204414906U (en) | 2015-06-24 |
Family
ID=53465306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520057780.3U Expired - Fee Related CN204414906U (en) | 2015-01-27 | 2015-01-27 | A kind of board for teaching mathematics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204414906U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107053906A (en) * | 2016-12-28 | 2017-08-18 | 苏州市职业大学 | A kind of portable multi-function drawing board |
| CN109532285A (en) * | 2019-01-07 | 2019-03-29 | 台州学院 | A kind of digital display draughting board |
-
2015
- 2015-01-27 CN CN201520057780.3U patent/CN204414906U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107053906A (en) * | 2016-12-28 | 2017-08-18 | 苏州市职业大学 | A kind of portable multi-function drawing board |
| CN109532285A (en) * | 2019-01-07 | 2019-03-29 | 台州学院 | A kind of digital display draughting board |
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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: 20150624 Termination date: 20160127 |
|
| EXPY | Termination of patent right or utility model |