CN107139609A - A kind of teaching of built-in removable template, which is painted, writes plate - Google Patents
A kind of teaching of built-in removable template, which is painted, writes plate Download PDFInfo
- Publication number
- CN107139609A CN107139609A CN201710266084.7A CN201710266084A CN107139609A CN 107139609 A CN107139609 A CN 107139609A CN 201710266084 A CN201710266084 A CN 201710266084A CN 107139609 A CN107139609 A CN 107139609A
- Authority
- CN
- China
- Prior art keywords
- transparent panel
- template
- teaching
- backboard
- rolling frame
- 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
- 238000005096 rolling process Methods 0.000 claims abstract description 46
- 230000003287 optical effect Effects 0.000 claims abstract description 25
- 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
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 210000003746 feather Anatomy 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000010422 painting Methods 0.000 abstract description 5
- 230000003068 static effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 8
- 238000005452 bending Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000000717 retained effect Effects 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
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
-
- 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
Painted the present invention relates to a kind of teaching of built-in removable template and write plate, the scheme of solution is：The transparent panel and backboard being vertically arranged including longitudinal direction, there is the template with transparent panel parallel contact between transparent panel and backboard；It is provided with template right flank in the rolling frame for the hollow ball structure that right-end openings are provided with the right side of multiple elastic supporting member for supporting optical member framves, elastic supporting member for supporting optical member, rolling frame and is installed with friction pulley；Friction pulley is contacted with backboard and rolling frame extruding；Being provided with template on the left of magnetic metal block, transparent panel has moveable magnetic block corresponding with magnetic metal block.The present invention not only realizes the repertoire of blackboard used in teaching at present, additionally provide reusable coordinate system, and it is write optional position movement in plate and static painting, be easy to correspond formula and figure, teaching procedure is simplified, classroom efficiency is improved.
Description
Technical field
The present invention relates to mathematics education model, particularly a kind of teaching of built-in removable template, which is painted, writes plate.
Background technology
During mathematical education, complicated mathematical formulae and functional relation is often more abstract, in order to intuitively express,
Usually require to write on plate formulation or function and draw out curvilinear figure in its side painting in teaching, in order to be explained
Analyze and help classmates and understand.Due to some fixation formula or its figure generally be widely used in different scenes and
Frequently occur, these formula and its figure need to draw its curve one by one to help to understand, and are all needed before each Drawing of Curve
Coordinate system is first drawn, different described points are determined in coordinate system, then described point is drawn into approximate figure with curve connection, therefore
The repetition rendering rate that plane coordinates is tied up in teaching is very high, often occupies substantial amounts of time and efforts.Institute in imparting knowledge to students at present
Painting for using writes plate based on common blackboard, and teaching displaying is carried out by constantly writing and wiping, in different class hours,
The need for due to other contents of courses, rendered coordinate system can not often be retained and be reused.
The content of the invention
For above-mentioned situation, to make up the technical deficiency present in prior art, the present invention provides a kind of built-in removable
The teaching of template, which is painted, writes plate.
Its solve technical scheme be：The transparent panel and backboard being vertically arranged including longitudinal direction, backboard are placed in the right side of transparent panel
, there is the template with transparent panel parallel contact side between transparent panel and backboard；
It is fixed with template right flank on the right side of multiple horizontally disposed elastic supporting member for supporting optical member, elastic supporting member for supporting optical member and is fixed on elastic branch
Rolling frame in support member, constitutes rolling frame and does each structure to swing with elastic supporting member for supporting optical member；
The friction ball that can be rolled in rolling frame is installed with rolling frame, the right-hand member of friction ball is placed in outside rolling frame；
Friction ball is contacted with backboard and rolling frame extruding, constitutes the knot that the rubbed ball of template is moved between transparent panel and backboard
Structure；
Being provided with template on the left of magnetic metal block, transparent panel has moveable magnetic block corresponding with magnetic metal block.
Delicate structure of the present invention, it is simple to operate, the repertoire of blackboard used in teaching at present is not only realized, is also provided
Reusable coordinate system, and it is write optional position movement in plate and static painting, it is easy to formula and figure one
One correspondence, simplifies teaching procedure, improves 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.
Front view when Fig. 5 links together for the template of the present invention with flexible supporting frames, rolling frame, friction ball.
Right side when Fig. 6 links together for the template of the invention of the present invention with flexible supporting frames, rolling frame, friction ball
View.
Embodiment
The embodiment of the present invention is described in further detail below in conjunction with accompanying drawing.
Provided 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；
Multiple horizontally disposed elastic supporting member for supporting optical member 4 are fixed with the right flank of template 3, the right side of elastic supporting member for supporting optical member 4 is fixed on bullet
Property support member 4 on rolling frame 5, constitute rolling frame 5 do each structure to swing with elastic supporting member for supporting optical member 4；
The friction ball 6 that can be rolled in rolling frame 5 is installed with rolling frame 5, the right-hand member of friction ball 6 is placed in outside rolling frame 5；
Friction ball 6 is contacted with backboard 2 and the extruding of rolling frame 5, constitutes the rubbed ball 6 of template 3 between transparent panel 1 and backboard 2
Mobile structure；
Magnetic metal block is installed, there is moveable magnetic block corresponding with magnetic metal block in the left side of transparent panel 1 on template 3
7。
In order that elastic supporting member for supporting optical member 4 reaches that described elastic supporting member for supporting optical member 4 is elastomeric material system preferably respectively to effect is swung
Into barred body.
In order that elastic supporting member for supporting optical member 4 reaches that described elastic supporting member for supporting optical member 4 is spring preferably respectively to effect is swung.
In order that stability when template 3 stops at an arbitrary position, described rolling frame 5 is the hollow ball knot of opening
Structure, friction ball 6 is installed in rolling frame 5 and gap coordinates, and rolling frame 5 is built with the rubber being placed between rolling frame 5 and friction ball 6
Film 8, friction ball 6 is contacted with backboard 2 and the extruding of sheet rubber 8, constitutes the structure of the friction rolling in rolling frame 5 of friction ball 6.
In order that template 3 reaches preferably mobile effect, seat is installed between described transparent panel 1 and template 3
The inside of target 3 and the multiple balls contacted with transparent panel 1；Ball makes template 3 be separated with transparent panel 1, when template 3 is moved
When, ball is rolled between template 3 and transparent panel 1, reduces the frictional force between template 3 and transparent panel 1, template 3
Movement it is better.
In order that magnetic block 7 reaches preferably mobile effect, magnetic is installed between described transparent panel 1 and magnetic block 7
Property the inside of the block 7 and multiple balls contacted with transparent panel 1；Ball makes magnetic block 7 be separated with transparent panel 1, when magnetic block 7 is moved
When, ball is rolled between magnetic block 7 and transparent panel 1, reduces the frictional force between magnetic block 7 and transparent panel 1, magnetic block 7
Movement it is better.
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 to be placed in chute with the corresponding chute of stripper plate 9, stripper plate 9, is extruded
There are two ends to be individually fixed in multiple thrust springs 10 of on stripper plate 9 and chute bottom between plate 9 and chute bottom, constitute extruding
Plate is moved left and right through thrust spring 10 in chute, and extrudes the structure for contacting or separating with backboard 2；Equipped with many on stripper plate 9
Individual magnetic metal block；In use, the magnetic force of the magnetic block 7 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 7 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 obtain bigger frictional force between stripper plate 9 and backboard 2 to ensure the reliable static of template 3, it is described
The right side of stripper plate 9 on rubber layer is installed.
In order that stripper plate 9 is lighter, the material of described stripper plate 9 is plastics, and plastics inner is inlaid with multiple magnetic
Property metal derby.
In order that magnetic block 7, which reaches, more easily takes effect, there are top-support 11, top branch on described transparent panel 1
It is longitudinally provided with frame 11 on the slip shaft 12 with chute, slip shaft 12 and is set with rotating shaft 13, is provided with the suit hole of rotating shaft 13
The feather key matched with the chute of slip shaft 12, constitutes the structure that rotating shaft 13 slides back and forth on slip shaft 12；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, which are provided with the outside of catch, catch, to be had
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 7, constitutes magnetic block
7 structures moved up and down through halliard 16；The instantaneous twisting resistance of scroll spring 15 is not less than the gravity of magnetic block 7.
The present invention makes magnetic block 7 in use, magnetic block 7 is moved into the left side of transparent panel 1 and the corresponding position of stripper plate 9
The ball of right flank is contacted with transparent panel 1, and now in the case where the magnetic force of magnetic block 7 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.
Apply the active force of any direction on magnetic block 7, the stiction between friction ball 6 and backboard 2 and sheet rubber 8
Friction ball 6 is produced deflection on elastic supporting member for supporting optical member 4 through rolling frame 5, and then make between friction ball 6 and backboard 2 and sheet rubber 8
Squish area tapers into i.e. stiction and is gradually reduced, and friction ball 6 produces rolling trend；Meanwhile, rolling frame 5 is with friction ball 6
Deflection make elastic supporting member for supporting optical member 4 produce flexural deformation, the elastic force produced by the flexural deformation of elastic supporting member for supporting optical member 4 make friction ball 6 with the back of the body
Plate 2, which is produced, keeps contact；When the active force being applied on magnetic block 7 be more than now multiple elastic supporting member for supporting optical member 4 bending elastic force it
And when, template 3 starts to move in the same direction with the active force on magnetic block 7；Sliding friction between friction ball 6 and sheet rubber 8
When power is less than the force of sliding friction between friction ball 6 and backboard 2, the friction rolling in rolling frame of friction ball 6.
After active force disappears, friction ball 6 is propped up under the bending elastic force effect of elastic supporting member for supporting optical member 4 with rolling frame 5 in elasticity
Occur to reset deflection in support member 4, make friction ball 6 and the contact squeeze of backboard 2, it is quiet between friction ball 6 and backboard 2 and sheet rubber 8
Frictional force gradually increase make friction ball in rolling frame 5 friction rolling stop, between friction ball 6 and backboard 2 and sheet rubber 8 by
Cumulative big stiction makes template 3 and magnetic block 7 under the bending elastic force effect of elastic supporting member for supporting optical member 4 on magnetropism block 7
The flexural deformation of elastic supporting member for supporting optical member 4 is gradually reduced in the opposite direction displacement of active force, displacement process, makes friction ball 6 and backboard 2
With the fully extruding contact of sheet rubber 8, when displacement stops, the stiction between friction ball 6 and backboard 2 and sheet rubber 8 makes coordinate
Plate 3 does not produce downward sliding and left and right is offset.
Magnetic block 7 is pulled 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 and drives rubber layer to be extruded with backboard 2 and contacts, and the frictional force between rubber layer and backboard 2 makes template 3
Reliably stop between transparent panel 1 and backboard 2.
When magnetic block 7 is moved forward and backward, the halliard 16 being connected with magnetic block 7 is swung with magnetic block 7, and reel 14 is rising
Slided under the swing effect of drop rope 16 through rotating shaft 13 on slip shaft 12, i.e., reel 14 does the fortune of left and right translation through halliard 16
It is dynamic；When magnetic block 7 is moved up and down, the halliard 16 being connected with magnetic block 7 is flexible with magnetic block 7, and reel 14 is in halliard
Rotated under 16 telescopic action in rotating shaft 13, i.e., reel 14 does the motion rotated upwardly and downwardly through halliard 16；When putting on magnetic
Property block 7 on active force disappear and when magnetic absorption does not occur for magnetic block 7 and magnetic adsorbing block 9, reel 14 is in scroll spring
Rotate motion under 15 torsion force, so that halliard 16 does take-up winding on reel 14, magnetic block 7 is on
Rise to the lower edge of top-support 11 and contacted with top-support 11.
After template 3 is moved to precalculated position, you can have on the enterprising line number graphic plotting of transparent panel 1, 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.
When elastic supporting member for supporting optical member 4 is the barred body that elastomeric material is made, in order to ensure that the active force put on magnetic block 7 disappears
After mistake, template 3 reliable in time at an arbitrary position can stop, when template 3 is static, friction ball 6 and backboard 2 and rolling frame
The frictional force sum between frictional force and template 3 and transparent panel 1 between 5 is not less than template 3, elastic supporting member for supporting optical member 4, rolling
The gravity sum of frame 5, friction ball 6.
Delicate structure of the present invention, not only realizes the repertoire of blackboard in teaching at present, additionally provides reusable
Coordinate system, and it is write optional position movement in plate and static painting, be easy to correspond formula and figure, simplify
Teaching procedure, improves classroom efficiency.The motion mode of magnetic absorption makes dynamic structure simpler efficiently, while without unnecessary
Structure is limited the motion direction of template, and 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 fast quick-detach and installation between transparent panel and backboard, press
Need to use, adapt to the teaching needs of various courses.
Claims (10)
1. a kind of teaching of built-in removable template, which is painted, writes plate, it is characterised in that the transparent panel being vertically arranged including longitudinal direction（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）It is parallel
The template of contact（3）；
Template（3）Multiple horizontally disposed elastic supporting member for supporting optical member are fixed with right flank（4）, elastic supporting member for supporting optical member（4）Right side has solid
It is scheduled on elastic supporting member for supporting optical member（4）On rolling frame（5）, constitute rolling frame（5）With elastic supporting member for supporting optical member（4）Do each structure to swing；
Rolling frame（5）Inside being installed with can be in rolling frame（5）The friction ball of interior rolling（6）, friction ball（6）Right-hand member be placed in rolling frame
（5）Outside；
Friction ball（6）With backboard（2）And rolling frame（5）Extruding contact, constitutes template（3）Rubbed ball（6）In transparent panel（1）
And backboard（2）Between the structure that moves；
Template（3）On magnetic metal block, transparent panel are installed（1）There is moveable magnetic corresponding with magnetic metal block in left side
Property block（7）.
2. a kind of teaching of built-in removable template according to claim 1, which is painted, writes plate, it is characterised in that resilient support
Part（4）The barred body being made for elastomeric material.
3. a kind of teaching of built-in removable template according to claim 1, which is painted, writes plate, it is characterised in that resilient support
Part（4）For spring.
4. a kind of teaching of built-in removable template according to claim 1, which is painted, writes plate, it is characterised in that rolling frame
（5）For the hollow ball structure of opening, friction ball（6）It is installed on rolling frame（5）Interior and gap coordinates, rolling frame（5）Built with
It is placed in rolling frame（5）And friction ball（6）Between sheet rubber（8）, friction ball（6）With backboard（2）And sheet rubber（8）Extruding connects
Touch, constitute friction ball（6）In rolling frame（5）The structure of interior friction rolling.
5. a kind of teaching of built-in removable template according to claim 1, which is painted, writes plate, 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.
6. a kind of teaching of built-in removable template according to claim 1, which is painted, writes plate, it is characterised in that transparent panel
（1）With magnetic block（7）Between be installed on magnetic block（7）Internal and and transparent panel（1）Multiple balls of contact.
7. a kind of teaching of built-in removable template according to claim 1, which is painted, writes plate, it is characterised in that template
（3）With backboard（2）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, stripper plate（9）There are two ends to be individually fixed in stripper plate between chute bottom（9）Upper and chute bottom
Multiple thrust springs（10）, stripper plate is constituted through thrust spring（10）Moved left and right in chute, and and backboard（2）Extruding contact
Or the structure of separation；Stripper plate（9）It is upper that multiple magnetic metal blocks are housed.
8. a kind of teaching of built-in removable template according to claim 6, which is painted, writes plate, it is characterised in that stripper plate
（9）Rubber layer is installed on right side.
9. painted according to a kind of teaching of any described built-in removable template of claim 7 or 8 and write plate, it is characterised in that
Stripper plate（9）Material be plastics, plastics inner is inlaid with multiple magnetic metal blocks.
10. a kind of teaching of built-in removable template according to claim 1, which is painted, writes plate, it is characterised in that transparent panel
（1）On have top-support（11）, top-support（11）On be longitudinally provided with the slip shaft with chute（12）, slip shaft（12）Upper set
Equipped 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）On the structure that slides back and forth；Rotating shaft（13）On be set with reel（14）, constitute reel（14）
Rotating shaft（13）The structure of upper rotation；Reel（14）Two ends, which are provided with the outside of catch, catch, has one end to be fixed on rotating shaft（13）On
Scroll spring（15）, scroll spring（15）The other end be fixed on reel（14）On；Reel（14）On be wound with one end company
It is connected on reel（14）On halliard（16）, halliard（16）The other end and magnetic block（7）It is connected, constitutes magnetic block（7）
Through halliard（16）The structure moved up and down；Scroll spring（15）Instantaneous twisting resistance be not less than magnetic block（7）Gravity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710266084.7A CN107139609B (en) | 2017-04-21 | 2017-04-21 | A kind of teaching of built-in removable template, which is painted, writes plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710266084.7A CN107139609B (en) | 2017-04-21 | 2017-04-21 | A kind of teaching of built-in removable template, which is painted, writes plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107139609A true CN107139609A (en) | 2017-09-08 |
| CN107139609B CN107139609B (en) | 2018-05-08 |
Family
ID=59773791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710266084.7A Expired - Fee Related CN107139609B (en) | 2017-04-21 | 2017-04-21 | A kind of teaching of built-in removable template, which is painted, writes plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107139609B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108394214A (en) * | 2018-03-05 | 2018-08-14 | 郑州航空工业管理学院 | A kind of Multifunctional mathematics teaching display board |
| 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 |
| CN109130602A (en) * | 2018-09-12 | 2019-01-04 | 林哈尔 | Auxiliary tool is used in a kind of drawing of mathematical education |
| CN111016503A (en) * | 2019-12-24 | 2020-04-17 | 王誉为 | Blackboard of automatic brush of controllable type |
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| US4672747A (en) * | 1985-12-09 | 1987-06-16 | Eleanor Turner | Magnetic device for aiding scaled reproduction of pictorial images in needlework |
| CN203818838U (en) * | 2014-05-08 | 2014-09-10 | 张秀娟 | Display board for economics teaching |
| CN203995331U (en) * | 2014-06-30 | 2014-12-10 | 梧州学院 | A kind of multifunctional drawing board |
| CN204915006U (en) * | 2015-08-12 | 2015-12-30 | 江大伟 | English teaching assisting device |
| CN205058962U (en) * | 2015-10-16 | 2016-03-02 | 张仲伟 | Make things convenient for blackboard of mathematical education |
| CN105882241A (en) * | 2014-12-07 | 2016-08-24 | 向志强 | Automatic dusting dust-free blackboard |
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2017
- 2017-04-21 CN CN201710266084.7A patent/CN107139609B/en not_active Expired - Fee Related
Patent Citations (6)
| 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 |
| CN203818838U (en) * | 2014-05-08 | 2014-09-10 | 张秀娟 | Display board for economics teaching |
| CN203995331U (en) * | 2014-06-30 | 2014-12-10 | 梧州学院 | A kind of multifunctional drawing board |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108394214A (en) * | 2018-03-05 | 2018-08-14 | 郑州航空工业管理学院 | A kind of Multifunctional mathematics teaching display board |
| CN108394214B (en) * | 2018-03-05 | 2020-01-31 | 郑州航空工业管理学院 | multifunctional mathematical teaching display board |
| 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 |
| CN109130602A (en) * | 2018-09-12 | 2019-01-04 | 林哈尔 | Auxiliary tool is used in a kind of drawing of mathematical education |
| CN111016503A (en) * | 2019-12-24 | 2020-04-17 | 王誉为 | Blackboard of automatic brush of controllable type |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107139609B (en) | 2018-05-08 |
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Granted publication date: 20180508 Termination date: 20190421 |