CN106926617A - A kind of mathematical education drawing board - Google Patents
A kind of mathematical education drawing board Download PDFInfo
- Publication number
- CN106926617A CN106926617A CN201710265606.1A CN201710265606A CN106926617A CN 106926617 A CN106926617 A CN 106926617A CN 201710265606 A CN201710265606 A CN 201710265606A CN 106926617 A CN106926617 A CN 106926617A
- Authority
- CN
- China
- Prior art keywords
- template
- backboard
- transparent panel
- block
- fixed mount
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 claims abstract description 12
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 210000003746 feather Anatomy 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000009738 saturating Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 11
- 238000005452 bending Methods 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/001—Mathematical drawing instruments
Abstract
The present invention relates to a kind of mathematical education drawing board, the scheme of solution is：Including transparent panel and backboard that longitudinal direction is vertically arranged, there is the template with transparent panel parallel contact between transparent panel and backboard；The mobile module contacted with backboard is installed on template right flank；Mobile module includes the multiple fixed mounts being fixed on template right flank, and fixed mount right side is provided with level or vertically arranged roller, and roller is contacted with backboard extruding；Magnetic metal block is installed, there is moveable magnetic block corresponding with magnetic metal block in transparent panel left side on template.The present invention realizes the movement of template by the mobile module of two groups of different directions, and makes reliably to stop under its inactive state, can not only provide coordinate system, and its optional position in blackboard can also moved and static.
Description
Technical field
The present invention relates to Mathematical Modeling, particularly a kind of mathematical education drawing board.
Background technology
In mathematical education field, it usually needs draw various curves to express mathematical formulae or functional relation, and
, it is necessary to draw out coordinate system first before drawing curve, for different mathematical formulae or functional relation, often need to be in different positions
Put the multiple coordinate systems of drafting；And for same curve or figure, also to repeat to draw in different class hours.Such drawing side
Formula virtually increased the duplication of labour of teacher and classmates, reduce teaching speed.
The content of the invention
For above-mentioned situation, to make up the technical deficiency existing for prior art, the present invention provides a kind of mathematical education and uses
Drawing board.
Its solve technical scheme be：Including transparent panel and backboard that longitudinal direction is vertically arranged, backboard is placed in the right side of transparent panel
, there is the template with transparent panel parallel contact side between transparent panel and backboard；
Be provided with template right flank contacted with backboard move horizontally module and vertically movable module；
Moving horizontally module includes the multiple fixed mounts being fixed on template right flank, and fixed mount right side is hinged on fixed mount
On contiguous block, horizontally disposed roller is installed on contiguous block, constitute what roller was rotated upwardly and downwardly through contiguous block on fixed mount
Structure, roller is contacted with backboard extruding, constitutes the structure that template is moved forward and backward between transparent panel and backboard；
Vertical shift module includes the multiple fixed mounts being fixed on template right flank, and fixed mount right side is hinged on fixed mount
On contiguous block, be provided with contiguous block perpendicular to template and vertically arranged roller, constitute roller through contiguous block in fixation
The structure of front and rear rotation on frame, roller is contacted with backboard extruding, constitutes what template was moved up and down between transparent panel and backboard
Structure；
Elastic component is installed on the right side of fixed mount, on contiguous block the corresponding surface relative with the right side of fixed mount be provided with
The groove of elastic component matching, one end of elastic component is placed in groove, between the corresponding surface on the right side and contiguous block of fixed mount
There is interval；Magnetic metal block is installed, there is moveable magnetic corresponding with magnetic metal block in transparent panel left side on template
Block.
Delicate structure of the present invention, it is simple to operate, coordinate system can not only be provided, can also make its optional position in blackboard
It is mobile and static, formula is corresponded with figure, teaching procedure is simplified, improve classroom efficiency.
Brief description of the drawings
Fig. 1 is front view of the invention.
Fig. 2 is the zoomed-in view of part A in Fig. 1 of the invention.
Fig. 3 is left view part sectioned view of the invention.
Fig. 4 is the zoomed-in view of part B in Fig. 3 of the invention.
Fig. 5 be template of the invention with when moving horizontally module, vertically movable module, stripper plate, thrust spring and being connected
Front view.
Fig. 6 be template of the invention with when moving horizontally module, vertically movable module, stripper plate, thrust spring and being connected
Right view.
Specific embodiment
Specific embodiment of the invention is described in further detail below in conjunction with accompanying drawing.
Be given by Fig. 1 to Fig. 6, the present invention includes the transparent panel 1 and backboard 2 that longitudinal direction is vertically arranged, backboard 2 is placed in transparent panel
, there is the template 3 with the parallel contact of transparent panel 1 on 1 right side between transparent panel 1 and backboard 2；
Be provided with the right flank of template 3 contacted with backboard 2 move horizontally module and vertically movable module；
Moving horizontally module includes the multiple fixed mounts 4 being fixed on the right flank of template 3, and the right side of fixed mount 4 is hinged on solid
Determine the contiguous block 5 on frame 4, horizontally disposed roller 6 is installed on contiguous block 5, composition roller 6 is through contiguous block 5 on fixed mount 4
The structure for rotating upwardly and downwardly, roller 6 is contacted with the extruding of backboard 2, constitutes what template 3 was moved forward and backward between transparent panel 1 and backboard 2
Structure；
Vertical shift module includes the multiple fixed mounts 4 being fixed on the right flank of template 3, and the right side of fixed mount 4 is hinged on solid
Determine the contiguous block 5 on frame, be provided with contiguous block 5 perpendicular to template 3 and vertically arranged roller 6, constitute roller 6 through connection
The structure of the front and rear rotation on fixed mount 4 of block 5, roller 6 is contacted with the extruding of backboard 2, constitutes template 3 in transparent panel 1 and backboard 2
Between the structure that moves up and down；
Elastic component 7 is installed on the right side of fixed mount 4, is set on the corresponding surface relative with the right side of fixed mount 4 on contiguous block 5
The one end for having the groove matched with elastic component 7, elastic component 7 is placed in groove, right on the right side of fixed mount 4 and contiguous block 5
Answering between face has interval；Magnetic metal block is installed, the left side of transparent panel 1 has corresponding with magnetic metal block removable on template 3
Dynamic magnetic block 8.
In order that template 3 reaches more preferable stability when static, described elastic component 7 is laminated structure, is moved horizontally
Elastic component 7 is horizontally disposed with groove in module, and elastic component 7 perpendicular to template 3 and is erected in groove in vertically movable module
To setting.
In order that template 3 reaches preferably mobile effect, it is installed between transparent panel 1 and template 3 in template 3
Portion and the multiple balls contacted with transparent panel 1；Ball makes template 3 be separated with transparent panel 1, and when template 3 is moved, ball exists
Rolled between template 3 and transparent panel 1, reduce the frictional force between template 3 and transparent panel 1, the mobile effect of template 3
More preferably.
In order that magnetic block 8 reaches preferably mobile effect, it is installed between transparent panel 1 and magnetic block 8 in magnetic block 8
Portion and the multiple balls contacted with transparent panel 1；Ball makes magnetic block 8 be separated with transparent panel 1, and when magnetic block 8 is moved, ball exists
Rolled between magnetic block 8 and transparent panel 1, reduce the frictional force between magnetic block 8 and transparent panel 1, the mobile effect of magnetic block 8
More preferably.
In order that stripper plate 9 reaches more preferable stationary stability, described template 3 and the back of the body when being contacted with the extruding of backboard 2
There is stripper plate 9 between plate 2, the right side of template 3 is provided with and is placed in chute with the corresponding chute of stripper plate 9, stripper plate 9, extrude
Have between plate 9 and chute bottom two ends be individually fixed on stripper plate 9 and chute bottom multiple thrust springs 10, constitute extruding
Plate is moved left and right through thrust spring 10 in chute, and extrudes contact or separate structure with backboard 2；Equipped with many on stripper plate 9
Individual magnetic metal block；When using, the magnetic force of the magnetic block 8 contacted with transparent panel 1 overcomes the thrust of thrust spring 10 to make stripper plate 9
It is moved to the left and is separated with backboard 2, when magnetic block 8 is away from transparent panel 1, the thrust of thrust spring 10 overcomes the magnetic force being gradually reduced
Stripper plate 9 is set to move right and be contacted with the extruding of backboard 2.
In order that it is static to ensure the reliability of template 3 that bigger frictional force is obtained between stripper plate 9 and backboard 2, it is described
The right side of stripper plate 9 on rubber layer is installed；Because the frictional force of rubber layer is larger, when rubber layer is contacted with the extruding of backboard 2
When, the optional position remains stationary between transparent panel 1 and backboard 2 of template 3.
Effect is preferably moved left and right in chute in order to reach stripper plate 9, the material of described stripper plate 9 is plastics,
Plastics inner is inlaid with multiple magnetic metal blocks.
In order that magnetic block 8 reaches more easily takes effect, there are top-support 11, top branch on described transparent panel 1
The slip shaft 12 with chute is longitudinally provided with frame 11, rotating shaft 13 is set with slip shaft 12, be provided with the suit hole of rotating shaft 13
The feather key matched with the chute of slip shaft 12, constitutes the structure of the slide anteroposterior on slip shaft 12 of rotating shaft 13；Covered in rotating shaft 13
Equipped with reel 14, the structure that reel 14 is rotated in rotating shaft 13 is constituted；The two ends of reel 14 are provided with catch, and catch outside has
One end is fixed on the scroll spring 15 in rotating shaft 13, and the other end of scroll spring 15 is fixed on reel 14；On reel 14
The halliard 16 that one end is connected on reel 14 is wound with, the other end of halliard 16 is connected with magnetic block 8, constitutes magnetic block
8 structures moved up and down through halliard 16；Gravity of the instantaneous twisting resistance of scroll spring 15 not less than magnetic block 8.
When the present invention is used, magnetic block 8 is moved to the left side of transparent panel 1 and the corresponding position of stripper plate 9, makes magnetic block 8
The ball of right flank is contacted with transparent panel 1, and now in the case where the magnetic force of magnetic block 8 attracts, stripper plate 9 is moved to the left and drives rubber
Layer is separated with backboard 2, and frictional force of the template 3 between transparent panel 1 and backboard 2 reduces.
When moving horizontally magnetic block 8, apply certain longitudinal force on magnetic block 8, move horizontally the rolling in module
Wheel 6 produces rolling in the presence of force of rolling friction；The stiction between roller 6 and backboard 2 in vertical shift module makes
Roller 6 is deflected before and after occurring on fixed mount 4 through contiguous block 5, and elastic component 7 produces flexural deformation, and then makes roller 6 and backboard 2
Squish area diminish and produce tendency toward sliding, stiction between roller 6 and backboard 2 reduces, meanwhile, on fixed mount 4
Elastic component 7 produces bending under the deflecting action of contiguous block 5, makes roller 6 keep contacting with backboard 2；When being applied on magnetic block 8
Longitudinal force more than total bending elastic force that the elastic component 7 in now vertically movable module is produced when, template 3 starts with magnetic
Active force on property block 8 is moved in the same direction.
After longitudinal force disappears, the roller 6 in vertical shift module is passed through under the bending elastic force effect of elastic component 7
There is the deflection that resets in contiguous block 5, because the frictional force of ball is smaller, magnetic block 8 is when roller 6 resets and deflects on fixed mount 4
The frictional force gradually increased between backboard 2 makes template 3 opposite to longitudinal force under the bending elastic force effect of elastic component 7
Direction produce displacement, the flexural deformation of elastic component 7 is tapered into displacement process, roller 6 is fully contacted with backboard 2 crowded
Pressure, the now stiction increase between roller 6 and backboard 2 makes template 3 static between transparent panel 1 and backboard 2；By magnetic
Block 8 is pulled to the left, stripper plate 9 is departed from its magnetic force scope, and now under the active force of thrust spring 10, stripper plate 9 moves right
Move and drive rubber layer to be contacted with the extruding of backboard 2, the frictional force between rubber layer and backboard 2 makes template 3 in transparent panel 1 and the back of the body
Reliably stop between plate 2.
During vertically movable magnetic block 8, apply certain vertical active force on magnetic block 8, the rolling in vertically movable module
Wheel 6 produces rolling in the presence of force of rolling friction；The stiction moved horizontally between the roller 6 in module and backboard 2 makes
Roller 6 occurs to deflect up and down through contiguous block 5 on fixed mount 4, and elastic component 7 produces flexural deformation, and then makes roller 6 and backboard 2
Squish area diminish and produce tendency toward sliding, stiction between roller 6 and backboard 2 reduces, meanwhile, on fixed mount 4
Elastic component 7 produces bending under the deflecting action of contiguous block 5, makes roller 6 keep contacting with backboard 2；When being applied on magnetic block 8
Vertical active force be more than when now moving horizontally total bending elastic force that elastic component 7 in module is produced, template 3 starts with magnetic
Active force on property block 8 is moved in the same direction.
After vertical active force disappears, the roller 6 in module is moved horizontally under the bending elastic force effect of elastic component 7, pass through
There is the deflection that resets in contiguous block 5, because the frictional force of ball is smaller, magnetic block 8 is when roller 6 resets and deflects on fixed mount 4
The frictional force gradually increased between backboard 2 makes template 3 opposite to vertical active force under the bending elastic force effect of elastic component 7
Direction produce displacement, the flexural deformation of elastic component 7 is tapered into displacement process, roller 6 is fully contacted with backboard 2 crowded
Pressure, the stiction increase between roller 6 and backboard 2 makes template 3 static between transparent panel 1 and backboard 2；By magnetic block 8
Pull to the left, stripper plate 9 is departed from its magnetic force scope, now under the active force of thrust spring 10, stripper plate 9 moves right simultaneously
Rubber layer is driven to be contacted with the extruding of backboard 2, the frictional force between rubber layer and backboard 2 makes template 3 in transparent panel 1 and backboard 2
Between reliably stop.
When magnetic block 8 is moved forward and backward, the halliard 16 being connected with magnetic block 8 swings with magnetic block 8, and reel 14 is rising
Slided on slip shaft 12 through rotating shaft 13 under the swing effect of drop rope 16, i.e., reel 14 does a left side through halliard 16 with magnetic block 8
The motion of right translation；When magnetic block 8 is moved up and down, the halliard 16 being connected with magnetic block 8 is flexible with magnetic block 8, reel
14 rotate under the telescopic action of halliard 16 in rotating shaft 13, i.e., reel 14 does the motion for rotating upwardly and downwardly through halliard 16；
When the disappearance of the active force on magnetic block 8 is put on and magnetic block 8 magnetic absorption does not occur with magnetic adsorbing block 9, reel 14
Rotate motion under the torsion force of scroll spring 15, so that halliard 16 does take-up winding, magnetic on reel 14
Property block 8 rises to the lower edge of top-support 11 and is contacted with top-support 11 therewith.
After template 3 is moved to precalculated position, you can in the enterprising line number graphic plotting of transparent panel 1, have on template 3
Default coordinate system, without drawing coordinate system in addition on transparent panel during graphic plotting；For different mathematical formulae or curve
Relation, can move multiple templates 3 and correspond therewith.
After ensureing to put on the disappearance of the active force on magnetic block 8, template 3 reliable in time at an arbitrary position can stop
Only, when template 3 is static, move horizontally frictional force and template 3 between the multiple rollers 6 and backboard 2 in module with it is saturating
Frictional force sum between isotropic disk 1 is not less than template 3, moves horizontally module, the gravity sum of vertically movable module.
Delicate structure of the present invention, the movement of template is realized by the mobile module of two groups of different directions, and makes its static
Reliably stop under state, it is to avoid drop and displacement, the motion mode of magnetic absorption makes dynamic structure simpler efficiently, together
When do not have unnecessary structure make template motion direction be limited, multiple templates can also be grouped together into sufficiently large
Coordinate range, the drafting and performance for making figure become apparent from and intuitively；Template can quickly be torn open between transparent panel and backboard
Unload and install, use on demand, adapt to the teaching needs of various courses.
Claims (8)
1. a kind of mathematical education is with using drawing board, it is characterised in that including the transparent panel that longitudinal direction is vertically arranged（1）And backboard（2）,
Backboard（2）It is placed in transparent panel（1）Right side, transparent panel（1）And backboard（2）Between have and transparent panel（1）The coordinate of parallel contact
Plate（3）；
Template（3）It is provided with right flank and backboard（2）What is contacted moves horizontally module and vertically movable module；
Moving horizontally module includes being fixed on template（3）Multiple fixed mounts on right flank（4）, fixed mount（4）Right side is hinged
It is connected on fixed mount（4）On contiguous block（5）, contiguous block（5）On horizontally disposed roller is installed（6）, constitute roller（6）Through even
Connect block（5）In fixed mount（4）On the structure that rotates upwardly and downwardly, roller（6）With backboard（2）Extruding contact, constitutes template（3）Saturating
Isotropic disk（1）And backboard（2）Between move forward and backward structure；
Vertical shift module includes being fixed on template（3）Multiple fixed mounts on right flank（4）, fixed mount（4）Right side is hinged
It is connected on the contiguous block on fixed mount（5）, contiguous block（5）On be provided with perpendicular to template（3）And vertically arranged roller（6）,
Constitute roller（6）Through contiguous block（5）In fixed mount（4）The structure rotated before and after upper, roller（6）With backboard（2）Extruding contact, structure
Into template（3）In transparent panel（1）And backboard（2）Between the structure that moves up and down；
Fixed mount（4）Right side on elastic component is installed（7）, contiguous block（5）Upper and fixed mount（4）Relative right in right side
Face is answered to be provided with and elastic component（7）The groove of matching, elastic component（7）One end be placed in groove, fixed mount（4）Right side with
Contiguous block（5）On corresponding surface between have interval；Template（3）On magnetic metal block, transparent panel are installed（1）Left side have with
The corresponding moveable magnetic block of magnetic metal block（8）.
2. a kind of mathematical education drawing board according to claim 1, it is characterised in that elastic component（7）It is laminated structure,
Move horizontally elastic component in module（7）It is horizontally disposed with groove, elastic component in vertically movable module（7）In groove perpendicular to
Template（3）And it is vertically arranged.
3. a kind of mathematical education drawing board according to claim 1, it is characterised in that transparent panel（1）With template（3）
Between be installed on template（3）Internal and and transparent panel（1）Multiple balls of contact.
4. a kind of mathematical education drawing board according to claim 1, it is characterised in that transparent panel（1）With magnetic block（8）
Between be installed on magnetic block（8）Internal and and transparent panel（1）Multiple balls of contact.
5. a kind of mathematical education drawing board according to claim 5, it is characterised in that template（3）With backboard（2）It
Between have stripper plate（9）, template（3）Right side is provided with and stripper plate（9）Corresponding chute, stripper plate（9）It is placed in chute, squeezes
Pressing plate（9）There are two ends to be individually fixed in stripper plate between chute bottom（9）Multiple thrust springs of upper and chute bottom（10）,
Stripper plate is constituted through thrust spring（10）Moved left and right in chute, and and backboard（2）Extruding contact or separate structure；Extruding
Plate（9）It is upper that multiple magnetic metal blocks are housed.
6. a kind of mathematical education drawing board according to claim 5, it is characterised in that stripper plate（9）Pacify on right side
Equipped with rubber layer.
7. according to a kind of any described mathematical education drawing board of claim 5 or 6, it is characterised in that stripper plate（9）Material
Matter is plastics, and plastics inner is inlaid with multiple magnetic metal blocks.
8. a kind of mathematical education drawing board according to claim 1, it is characterised in that transparent panel（1）On have top prop up
Frame（11）, top-support（11）On be longitudinally provided with the slip shaft with chute（12）, slip shaft（12）On be set with rotating shaft（13）,
Rotating shaft（13）Suit hole in be provided with and slip shaft（12）The feather key that matches of chute, constitute rotating shaft（13）In slip shaft（12）
The structure of upper slide anteroposterior；Rotating shaft（13）On be set with reel（14）, constitute reel（14）In rotating shaft（13）Upper rotation
Structure；Reel（14）Two ends are provided with catch, and catch outside has one end to be fixed on rotating shaft（13）On scroll spring（15）, scrollwork
Spring（15）The other end be fixed on reel（14）On；Reel（14）On be wound with one end and be connected to reel（14）On
Halliard（16）, halliard（16）The other end and magnetic block（8）It is connected, constitutes magnetic block（8）Through halliard（16）Up and down
Mobile structure；Scroll spring（15）Instantaneous twisting resistance be not less than magnetic block（8）Gravity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265606.1A CN106926617B (en) | 2017-04-21 | 2017-04-21 | A kind of mathematical education drawing board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265606.1A CN106926617B (en) | 2017-04-21 | 2017-04-21 | A kind of mathematical education drawing board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106926617A true CN106926617A (en) | 2017-07-07 |
| CN106926617B CN106926617B (en) | 2018-06-29 |
Family
ID=59436982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710265606.1A Expired - Fee Related CN106926617B (en) | 2017-04-21 | 2017-04-21 | A kind of mathematical education drawing board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106926617B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108638712A (en) * | 2018-05-08 | 2018-10-12 | 东华大学 | A kind of novel flat-plate plotter |
| CN108909287A (en) * | 2018-07-11 | 2018-11-30 | 侯翊宸 | A kind of drawing tool and method of adjustment of mathematical education adjustable coordinate plate |
| CN109050110A (en) * | 2018-07-11 | 2018-12-21 | 徐安旭 | Template adjustment mechanism, drawing board and the application method of mathematical education drawing board |
| CN112172387A (en) * | 2020-09-27 | 2021-01-05 | 安徽理工大学 | Mathematical modeling teaching aid |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4672747A (en) * | 1985-12-09 | 1987-06-16 | Eleanor Turner | Magnetic device for aiding scaled reproduction of pictorial images in needlework |
| CN203681075U (en) * | 2014-01-14 | 2014-07-02 | 东北石油大学 | Blackboard facilitating music teaching |
| CN204123858U (en) * | 2014-08-06 | 2015-01-28 | 温斌荣 | A kind of teaching aid for demonstrating layout of cam profile principle and process thereof |
| CN105034661A (en) * | 2015-09-01 | 2015-11-11 | 南京工业职业技术学院 | Non-triangular periodic function demonstration and image drawing device |
| CN205058962U (en) * | 2015-10-16 | 2016-03-02 | 张仲伟 | Make things convenient for blackboard of mathematical education |
-
2017
- 2017-04-21 CN CN201710265606.1A patent/CN106926617B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4672747A (en) * | 1985-12-09 | 1987-06-16 | Eleanor Turner | Magnetic device for aiding scaled reproduction of pictorial images in needlework |
| CN203681075U (en) * | 2014-01-14 | 2014-07-02 | 东北石油大学 | Blackboard facilitating music teaching |
| CN204123858U (en) * | 2014-08-06 | 2015-01-28 | 温斌荣 | A kind of teaching aid for demonstrating layout of cam profile principle and process thereof |
| CN105034661A (en) * | 2015-09-01 | 2015-11-11 | 南京工业职业技术学院 | Non-triangular periodic function demonstration and image drawing device |
| CN205058962U (en) * | 2015-10-16 | 2016-03-02 | 张仲伟 | Make things convenient for blackboard of mathematical education |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108638712A (en) * | 2018-05-08 | 2018-10-12 | 东华大学 | A kind of novel flat-plate plotter |
| CN108909287A (en) * | 2018-07-11 | 2018-11-30 | 侯翊宸 | A kind of drawing tool and method of adjustment of mathematical education adjustable coordinate plate |
| CN109050110A (en) * | 2018-07-11 | 2018-12-21 | 徐安旭 | Template adjustment mechanism, drawing board and the application method of mathematical education drawing board |
| CN112172387A (en) * | 2020-09-27 | 2021-01-05 | 安徽理工大学 | Mathematical modeling teaching aid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106926617B (en) | 2018-06-29 |
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