CN109130606B - Graphic display blackboard - Google Patents
Graphic display blackboard Download PDFInfo
- Publication number
- CN109130606B CN109130606B CN201810978655.4A CN201810978655A CN109130606B CN 109130606 B CN109130606 B CN 109130606B CN 201810978655 A CN201810978655 A CN 201810978655A CN 109130606 B CN109130606 B CN 109130606B
- Authority
- CN
- China
- Prior art keywords
- plate
- belt
- graphic display
- transmission shaft
- inner plate
- 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.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 230000006835 compression Effects 0.000 claims abstract description 15
- 238000007906 compression Methods 0.000 claims abstract description 15
- 239000004744 fabric Substances 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001360 synchronised effect Effects 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
- B43L21/00—Blackboard or slate cleaning devices
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
Landscapes
- Business, Economics & Management (AREA)
- Engineering & Computer Science (AREA)
- Entrepreneurship & Innovation (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Drawing Aids And Blackboards (AREA)
- Displays For Variable Information Using Movable Means (AREA)
Abstract
The invention discloses a graphic display blackboard with a rotatable graphic display board. Including planking, the inner panel, be equipped with two on the planking and be circular shape graphic display board, graphic display board's the back is equipped with the pivot along the axial, and support in the inner panel through the bearing, the pivot sets up driven pulley, driven pulley has two belt grooves, the both sides end at inner panel back sets up the driving pulley respectively, each driving pulley passes through the belt with the outside belt groove that corresponds the side driven pulley respectively and is connected, the well lower part at inner panel back sets up the transmission shaft, the both sides of transmission shaft set up the jackshaft, set up intermediate pulleys respectively on each jackshaft, intermediate gear, two intermediate pulleys respectively with correspond the inboard belt groove that side driven pulley passes through the belt to be connected, set up drive gear on the transmission shaft, drive gear can follow transmission shaft axial displacement, set up compression spring between drive gear and the inner panel, a thread bush and drive gear contact are joined in marriage to the tip screw thread of transmission shaft.
Description
Technical Field
The invention relates to the technical field of teaching aids, in particular to a graphic display blackboard.
Background
The existing blackboard is of a fixed structure, the drawn graph cannot move at all, the graphic display is very inconvenient, and particularly geometric figures and art figures can be observed from another angle only by rotating.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a graphic display blackboard with a rotatable graphic display board.
The purpose of the invention is realized in the following way:
The utility model provides a graphic display blackboard, includes planking, inner panel that are rectangle platelike structure, the planking is the clipboard, and the inner panel is the base plate, through a plurality of spliced pole fixed connection between planking, the inner panel, form the clearance between planking, the inner panel, be equipped with two graphic display boards that are circular shape along horizontal direction symmetry on the planking, be equipped with the hole of stepping down that corresponds on the planking and two graphic display board clearance fit, the back of graphic display board is equipped with the pivot along the axial, the pivot passes the inner panel to support in the inner panel through the bearing, the one end that the pivot passed the inner panel sets up driven pulley, driven pulley has two belt grooves, the both sides end at inner panel back sets up the driving pulley respectively with the outside belt groove that corresponds the side driven pulley is connected through the belt, forms belt drive mechanism, the well lower part at the inner panel back sets up the transmission shaft, set up intermediate pulley, intermediate gear on each intermediate shaft respectively, the intermediate gear is located the outside of intermediate pulley, two intermediate pulleys respectively with the inboard belt pulley that corresponds the side driven pulley pass through the belt connection, form drive mechanism, gear, set up the drive pulley and the compression sleeve is used for compressing thread, the end sets up between the thread, the compression sleeve is used for the thread, the compression sleeve sets up with the thread.
Preferably, the number of the connecting columns is four, and the connecting columns are uniformly distributed at four corners of the outer plate and the inner plate.
Preferably, a cylindrical boss is arranged at a part of the inner plate corresponding to the rotating shaft, and a bearing is arranged on the cylindrical boss to support the rotating shaft.
Preferably, the outer side of the driving pulley is located outside the inner plate for manual control of rotation.
Preferably, the diameter of the driving pulley is greater than twice the diameter of the driven pulley.
Preferably, the transmission gear is mounted on the transmission shaft through a bearing, the outer diameters of the compression spring and the threaded sleeve are smaller than the outer diameter of the inner ring of the bearing, a bolt is axially fixed at the end part of the transmission shaft, the head of the bolt is located at the outer part of the threaded sleeve and used for limiting the axial direction of the threaded sleeve, and a through hole is formed in the end wall of the threaded sleeve and used for giving way to the bolt.
Preferably, the mechanism is cleaned to be equipped with under the graphic display board, clean the mechanism and include the blackboard eraser and locate planking, the interior board between two guide posts, the blackboard eraser is including being the mounting panel of bar and the cloth of installing and fixing on the mounting panel, the cloth is used for cleaning the graphic display board, the cover has a return board on the two guide posts, set up return spring between return board and the planking, return spring cover is on two guide posts, the downwardly extending of return board passes the planking to connect a extension board that extends forward, the extension board extends forward and passes the planking, the tip of mounting panel passes through the bolt to be installed at the front end of extension board, rotates the mounting panel through unscrewing bolt, through screw up bolt fastening mounting panel.
Preferably, the mechanism is cleaned to be equipped with under the graphic display board, the mechanism of cleaning includes blackboard eraser and locates planking, the two guide posts between the inner panel, the blackboard eraser is including being the mounting panel of bar and installing the cloth of fixing on the mounting panel, the cloth is used for cleaning the graphic display board, the cover has a return board on the two guide posts, set up return spring between return board and the planking, return spring cover is on two guide posts, the downwardly extending of return board passes the planking to connect a extension board that extends forward, the extension board extends forward the planking, the dead axle that the tip of mounting panel was installed in extension board front end setting through the bearing, and through the bolt lock, the lower extreme of planking is fixed and is used for restricting the limiting plate of mounting panel extreme position.
Preferably, the free end of the mounting plate is higher than the axis of the graphic display board when the mounting plate is facing upwards.
Preferably, the wiping cloth is made of sponge, and the wiping cloth is fixed on the mounting plate by using sticking buckles.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
The invention has two rotatable graphic display boards, can realize synchronous rotation of the two graphic display boards, has good graphic display effect, and is particularly suitable for wiping the graphics drawn by the blackboard pen without chalk dust.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a schematic top view of FIG. 1;
FIG. 3 is a schematic rear view of FIG. 1;
FIG. 4 is a schematic cross-sectional view A-A of FIG. 3;
Fig. 5 and 6 are schematic structural diagrams of a second embodiment of the present invention;
fig. 7 is a schematic bottom view of fig. 5.
Reference numerals
In the drawing, 1 is an outer plate, 2 is an inner plate, 3 is a connecting column, 4 is a graphic display plate, 5 is a rotating shaft, 6 is a driven belt pulley, 7 is a driving belt pulley, 8 is a transmission shaft, 9 is a middle belt pulley, 10 is a middle gear, 11 is a compression spring, 12 is a transmission gear, 13 is a threaded sleeve, 14 is a double guide post, 15 is a mounting plate, 16 is a wiping cloth, 17 is a return plate, 18 is a return spring, 19 is an extension plate, 20 is a limiting plate, and 21 is a bolt.
Detailed Description
Example 1
Referring to fig. 1-4, a graphic display blackboard comprises an outer plate and an inner plate which are of rectangular plate-shaped structures, wherein the outer plate is a writing board, the inner plate is a substrate, the outer plate and the inner plate are fixedly connected through a plurality of connecting columns, and the number of the connecting columns is four and is uniformly distributed at four corners of the outer plate and the inner plate. The novel anti-theft display device comprises an outer plate and an inner plate, wherein a gap is formed between the outer plate and the inner plate, two circular graph display plates are symmetrically arranged on the outer plate along the horizontal direction, corresponding abdication holes are formed in the outer plate and are in clearance fit with the two graph display plates, a rotating shaft is arranged on the back surface of the graph display plate along the axial direction, the rotating shaft penetrates through the inner plate and is supported on the inner plate through a bearing, a cylindrical boss is arranged on the inner plate corresponding to the rotating shaft, and a bearing supporting rotating shaft is arranged on the cylindrical boss. The one end that the pivot passed the inner panel sets up driven pulley, driven pulley has two belt grooves, the both sides end at inner panel back sets up the driving pulley respectively, and each driving pulley passes through the belt with the outside belt groove of corresponding side driven pulley respectively and is connected, forms belt drive mechanism, the outside of driving pulley is located the inner panel outward for manual control rotates. The diameter of the driving pulley is greater than twice the diameter of the driven pulley.
The middle lower part at the back of the inner plate is provided with a transmission shaft, two sides of the transmission shaft are provided with intermediate shafts, each intermediate shaft is provided with an intermediate belt pulley and an intermediate gear respectively, the intermediate gears are positioned on the outer sides of the intermediate belt pulleys, the two intermediate belt pulleys are connected with the inner belt grooves of the corresponding side driven belt pulleys through belts respectively to form a belt transmission mechanism, the transmission shaft is provided with a transmission gear, the transmission gear can axially move along the transmission shaft, a compression spring is arranged between the transmission gear and the inner plate, the end threads of the transmission shaft are matched with a thread sleeve, the end parts of the thread sleeve are in contact with the transmission gear, and the thread sleeve and the compression spring are matched and used for driving the transmission gear to be meshed with and separated from the two intermediate gears.
The transmission gear is mounted on the transmission shaft through a bearing, the outer diameters of the compression spring and the threaded sleeve are smaller than the outer diameter of the inner ring of the bearing, a bolt is axially fixed at the end part of the transmission shaft, the head of the bolt is located outside the threaded sleeve and used for limiting the threaded sleeve axially, and a through hole is formed in the end wall of the threaded sleeve and used for giving way to the bolt.
The using method comprises the following steps:
the inner plate is provided with a hanging frame and other structures which can be installed on a wall through a threaded fastener, and when the graphic display plate does not need to be rotated, the whole outer plate and the graphic display plate are used as a common blackboard;
when the graph is needed to be displayed, the graph is drawn on the two graph display boards,
Under normal state, the thread bush is in the state of screwing up, and drive gear and two intermediate gears disconnect the state, through manual rotation each driving pulley, drives corresponding driven pulley, pivot, figure show board rotation, can see the figure on the figure show board from each angle.
When the thread sleeve is in a unscrewed state, the transmission gear is disengaged from the two intermediate gears, the two graphic display plates are linked, and any driving belt wheel is rotated, so that the two graphic display plates can be driven to synchronously rotate.
Example two
Referring to fig. 5-7, a wiping mechanism is arranged under the graphic display board, the wiping mechanism comprises a blackboard eraser and double guide posts arranged between an outer board and an inner board, the blackboard eraser comprises a strip-shaped mounting board and a wiping cloth arranged and fixed on the mounting board, the wiping cloth is used for wiping the graphic display board, the wiping cloth adopts sponge, and the wiping cloth is fixed on the mounting board by adopting sticking buckles. The double guide posts are sleeved with a return plate, a return spring is arranged between the return plate and the outer plate, the return spring is sleeved on the double guide posts, the lower part of the return plate downwards extends through the outer plate and is connected with an extending plate which extends forwards, the extending plate extends forwards through the outer plate, the end part of the mounting plate is mounted on a fixed shaft arranged at the front end of the extending plate through a bearing and is locked through a bolt, and the lower end of the outer plate is fixedly provided with a limiting plate for limiting the limiting position of the mounting plate. When the mounting plate faces upwards, the free end of the mounting plate is higher than the axle center of the graphic display board.
The using method comprises the following steps:
1. the resistance of the return spring is overcome, the mounting plate is pulled up and rotated to an upward position, at the moment, the rotation position is just limited by the limiting plate, the mounting plate is put down, and the wiping cloth is tightly attached to the graphic display plate under the action force of the return spring;
2. the driving belt wheel is rotated, the rotation direction is the same as that of the previous step, so that the pattern display board is wiped by the wiping cloth, and the wiping cloth is fixed by adopting the sticking buckle, so that the wiping cloth is convenient to replace.
Example III
The blackboard eraser comprises a strip-shaped mounting plate and a piece of wiping cloth which is fixedly arranged on the mounting plate, wherein a return plate is sleeved on the double guide posts, a return spring is arranged between the return plate and the outer plate, the return spring is sleeved on the double guide posts, the lower part of the return plate downwards extends through the outer plate and is connected with a forwards extending plate, the extending plate forwards extends through the outer plate, the end part of the mounting plate is mounted at the front end of the extending plate through a bolt, the mounting plate is rotated through unscrewing the bolt, and the mounting plate is fixed through screwing the bolt.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (6)
1. A graphic display blackboard, characterized in that: the novel compressed air spring type writing board comprises an outer plate and an inner plate which are of rectangular plate-shaped structures, wherein the outer plate is a writing board, the inner plate is a substrate, the outer plate and the inner plate are fixedly connected through a plurality of connecting columns, gaps are formed between the outer plate and the inner plate, two circular pattern display plates are symmetrically arranged on the outer plate along the horizontal direction, corresponding abdication holes are formed in the outer plate and are in clearance fit with the two pattern display plates, a rotating shaft is arranged on the back surface of the pattern display plates along the axial direction, the rotating shaft is perpendicular to the writing board, the rotating shaft penetrates through the inner plate and is supported on the inner plate through a bearing, one end of the rotating shaft, which penetrates through the inner plate, is provided with a driven belt pulley, the driven belt pulley is provided with two belt grooves, two side belt grooves are respectively connected with the outer belt grooves of the corresponding side driven belt pulley through belts to form a belt transmission mechanism, the middle lower part of the inner plate is provided with a transmission shaft, the middle belt grooves are respectively arranged on the middle shafts, the middle shafts are positioned on the middle belt pulleys on the outer sides of the inner plate, the middle belt pulleys are respectively connected with the inner side belt pulleys through belt grooves of the corresponding side belt pulleys through belt belts to form a transmission mechanism, the transmission shaft, and the two belt grooves are in axial direction of the transmission belt grooves are matched with the transmission shaft through the transmission shafts, and are in threaded sleeve thread compression threads, and are in threaded engagement with the compression sleeve, and the compression sleeve is in threaded sleeve thread compression sleeve, and the compression sleeve is arranged at the end part;
The transmission gear is mounted on the transmission shaft through a bearing, the outer diameters of the compression spring and the threaded sleeve are smaller than the outer diameter of the inner ring of the bearing, a bolt is axially fixed at the end part of the transmission shaft, the head part of the bolt is positioned at the outer part of the threaded sleeve and used for limiting the threaded sleeve axially, and a through hole is formed in the end wall of the threaded sleeve and used for giving way to the bolt;
The outer side of the driving belt wheel is positioned outside the inner plate and is used for manually controlling rotation;
The blackboard eraser comprises a strip-shaped mounting plate and a piece of wiping cloth which is fixedly arranged on the mounting plate, wherein a return plate is sleeved on the double guide posts, a return spring is arranged between the return plate and the outer plate, the return spring is sleeved on the double guide posts, the lower part of the return plate downwards extends through the outer plate and is connected with a forwards extending plate, the extending plate forwards extends through the outer plate, the end part of the mounting plate is mounted on a fixed shaft arranged at the front end of the extending plate through a bearing and is locked through a bolt, and the lower end of the outer plate is fixedly used for limiting a limiting plate at the limit position of the mounting plate.
2. A graphic display blackboard according to claim 1, wherein: the number of the connecting columns is four, and the connecting columns are uniformly distributed at four corners of the outer plate and the inner plate.
3. A graphic display blackboard according to claim 1, wherein: the inner plate is provided with a cylindrical boss corresponding to the part of the rotating shaft, and the cylindrical boss is provided with a bearing supporting rotating shaft.
4. A graphic display blackboard according to claim 1, wherein: the diameter of the driving pulley is greater than twice the diameter of the driven pulley.
5. A graphic display blackboard according to claim 1, wherein: when the mounting plate faces upwards, the free end of the mounting plate is higher than the axle center of the graphic display board.
6. A graphic display blackboard according to claim 1, wherein: the wiping cloth is made of sponge and is fixed on the mounting plate by sticking buckles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810978655.4A CN109130606B (en) | 2018-08-27 | 2018-08-27 | Graphic display blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810978655.4A CN109130606B (en) | 2018-08-27 | 2018-08-27 | Graphic display blackboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109130606A CN109130606A (en) | 2019-01-04 |
| CN109130606B true CN109130606B (en) | 2024-05-17 |
Family
ID=64828143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810978655.4A Active CN109130606B (en) | 2018-08-27 | 2018-08-27 | Graphic display blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109130606B (en) |
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| CN2243987Y (en) * | 1995-09-22 | 1997-01-01 | 周正友 | Automatic dust-free blackboard |
| CN2478791Y (en) * | 2001-04-27 | 2002-02-27 | 陈建科 | Automatic dust-removing blackboard (whiteboard) |
| CN101016690A (en) * | 2007-02-11 | 2007-08-15 | 刘小江 | Hand-operated equipment for clothes-horse |
| CN200969196Y (en) * | 2006-11-13 | 2007-10-31 | 李鹏 | Mobile advertisement with clutch apparatus |
| JP2008119967A (en) * | 2006-11-13 | 2008-05-29 | Kitajima Seisakusho:Kk | Blackboard apparatus |
| CN102708765A (en) * | 2012-06-13 | 2012-10-03 | 宁波考工记产品创意有限公司 | Operable dynamic display device |
| CN103612530A (en) * | 2013-11-29 | 2014-03-05 | 天津工业大学 | Flexible-belt-type automatic blackboard wiping device |
| CN203876436U (en) * | 2013-11-20 | 2014-10-15 | 王雪 | Projection and writing integrated self-cleaning blackboard |
| CN203957626U (en) * | 2014-06-16 | 2014-11-26 | 东北林业大学 | A kind of circulation automatic erasing blackboard that utilizes Timing Belt to drive planetary belt |
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| CN206774139U (en) * | 2017-05-24 | 2017-12-19 | 重庆城市管理职业学院 | A kind of special Graphic Panel of multi-functional construction costs |
| CN209552778U (en) * | 2018-08-27 | 2019-10-29 | 杨淞元 | A kind of figure displaying blackboard |
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| JPH11109874A (en) * | 1997-09-30 | 1999-04-23 | Fujitsu General Ltd | Tilt stand device for thin type display equipment |
| CN100571907C (en) * | 2008-09-16 | 2009-12-23 | 浙江大学 | Mechanical type friction feedback central air-conditioning tube cleaning mechanism |
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| CN206589514U (en) * | 2017-02-23 | 2017-10-27 | 江苏建筑职业技术学院 | A kind of novel English teaching blackboard |
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|---|---|---|---|---|
| CN2243987Y (en) * | 1995-09-22 | 1997-01-01 | 周正友 | Automatic dust-free blackboard |
| CN2478791Y (en) * | 2001-04-27 | 2002-02-27 | 陈建科 | Automatic dust-removing blackboard (whiteboard) |
| CN200969196Y (en) * | 2006-11-13 | 2007-10-31 | 李鹏 | Mobile advertisement with clutch apparatus |
| JP2008119967A (en) * | 2006-11-13 | 2008-05-29 | Kitajima Seisakusho:Kk | Blackboard apparatus |
| CN101016690A (en) * | 2007-02-11 | 2007-08-15 | 刘小江 | Hand-operated equipment for clothes-horse |
| CN102708765A (en) * | 2012-06-13 | 2012-10-03 | 宁波考工记产品创意有限公司 | Operable dynamic display device |
| CN203876436U (en) * | 2013-11-20 | 2014-10-15 | 王雪 | Projection and writing integrated self-cleaning blackboard |
| CN103612530A (en) * | 2013-11-29 | 2014-03-05 | 天津工业大学 | Flexible-belt-type automatic blackboard wiping device |
| CN203957626U (en) * | 2014-06-16 | 2014-11-26 | 东北林业大学 | A kind of circulation automatic erasing blackboard that utilizes Timing Belt to drive planetary belt |
| CN204172565U (en) * | 2014-08-25 | 2015-02-25 | 重庆市渝北职业教育中心 | A kind of blackboard eraser |
| CN104948671A (en) * | 2015-07-03 | 2015-09-30 | 安庆联泰电子科技有限公司 | Interval-adjustable transmission mechanism |
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| CN209552778U (en) * | 2018-08-27 | 2019-10-29 | 杨淞元 | A kind of figure displaying blackboard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109130606A (en) | 2019-01-04 |
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