CN107297976A - A kind of blackboard - Google Patents
A kind of blackboard Download PDFInfo
- Publication number
- CN107297976A CN107297976A CN201710626113.6A CN201710626113A CN107297976A CN 107297976 A CN107297976 A CN 107297976A CN 201710626113 A CN201710626113 A CN 201710626113A CN 107297976 A CN107297976 A CN 107297976A
- Authority
- CN
- China
- Prior art keywords
- blackboard
- blackboard surface
- frame body
- cylinder
- cross bar
- 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.)
- Pending
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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
- B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a kind of blackboard, the blackboard includes frame body, first blackboard surface, two blackboard surfaces, controller and automatic cleaner, frame body is rectangular configuration, frame body is arranged on the metope in classroom, the two ends of first blackboard surface and the second blackboard surface are slidably connected on the inside of rectangular configuration, first blackboard surface and the second blackboard surface can be moved up and down along frame body inwall both sides, first blackboard surface is located at the front of the second blackboard surface and the first blackboard surface is parallel with the second blackboard surface, two bar chains are respectively equipped with the both sides of the top end face of the first blackboard surface, the chain is separately fixed at the both sides of the second blackboard surface top end face through lifting drive, lateral wall of the blackboard at frame body two ends is provided with rack, rack has two lateral walls for being vertically arranged in frame body two ends respectively, wiping arrangement is installed on the rack.The present invention can realize the flexible wiping of blackboard, and the manpower of saving improves efficiency.
Description
Technical field
The invention belongs to teaching aid technical field, and in particular to a kind of blackboard.
Background technology
Blackboard is a kind of conventional educational aid, but blackboard in the market all must can just wipe powder with blackboard eraser
Pen ash, can produce substantial amounts of dust, can produce injury to the teacher on dais and the student at front row, and the class of teacher one is needed
Blackboard more than once is wiped, not only trouble also wastes muscle power, using the blackboard of push-and-pull up and down especially in the lecture theater of university, no
Trouble is only wiped, if chalk dust is dropped into chute, is just easy to hinder the movement of blackboard, causes push-and-pull blackboard to slide
It is very painstaking, it is sometimes even directly that the blackboard of slip is stuck, made troubles to education activities, it is therefore necessary to which design is a kind of
New blackboard solves the above problems.
The content of the invention
According to above the deficiencies in the prior art, the technical problems to be solved by the invention are to propose a kind of blackboard, pass through electricity
Dynamic drive device realizes moving up and down for blackboard surface, and carries out automatic erasing and by the generation of wiping by automatic cleaner
Dust is collected, and solves traditional push-and-pull blackboard push-and-pull trouble, it is impossible to the problem of automatic erasing, with simple in construction, wipes efficiency
High the characteristics of.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of blackboard includes frame body, first black
Plate face, two blackboard surfaces, controller and automatic cleaner, frame body are rectangular configuration, and frame body is arranged on the metope in classroom,
The two ends of first blackboard surface and the second blackboard surface are slidably connected on the inside of rectangular configuration, and the first blackboard surface and the second blackboard surface are equal
It can be moved up and down along frame body inwall both sides, the first blackboard surface is located at the front of the second blackboard surface and the first blackboard surface and second
Blackboard surface is parallel, and two bar chains are respectively equipped with the both sides of the top end face of the first blackboard surface, and the chain drives through lifting
Device is separately fixed at the both sides of the second blackboard surface top end face, and lateral wall of the blackboard at frame body two ends is provided with rack, tooth
Bar has is provided with wiping arrangement on two lateral walls for being vertically arranged in frame body two ends respectively, the rack.
As a preferred embodiment, the lifting drive includes motor, rolls cylinder and gear ring, rolling
Dynamic cylinder rotates the top for being horizontally arranged at frame body, and motor, the base of motor are connected with the shaft core position for rolling cylinder
Body is fixed on frame body, and two gear rings are respectively fixed with rotary cylinder, and two sliding tooth torus are relative with two chains respectively
Should, two chains ride on two gear rings respectively, and chain is meshed with gear ring, are provided with the bottom of frame body lateral wall positive and negative
Change-over switch, positive and negative change-over switch is connected by way of electrical connection with controller.Automatic cleaner includes cross bar frame, climbed
Device, electric hydaulic expansion link, wiping switch and wiping module, climbing device have two outsides for being respectively provided at frame body two ends
On the rack of wall, it is externally provided with climbing device provided with electric hydaulic expansion link, electric hydaulic expansion link and the first blackboard surface are kept
Vertically, cross bar frame two ends are separately fixed at the top of corresponding electric hydaulic expansion link, and cross bar frame and the first blackboard surface keep flat
Go and keep level with ground, electric hydaulic expansion link is connected by way of electrical connection with controller and by wiping switch control
System, is provided with towards the face of the first blackboard surface in cross bar frame provided with module and the first trigger switch is wiped in the upper surface of cross bar frame
Second trigger switch, the first trigger switch and the second trigger switch are connected by way of electrical connection with controller.Wipe module
Including active drive roller, driven roller, annular wiper cord, hawk and dust exhaust apparatus are scraped, in cross bar frame towards the first blackboard surface
Face be provided with groove, left and right ends are rotatablely equipped with active drive cylinder and driven driving cylinder in groove, active drive cylinder and driven
Drive the axis of cylinder perpendicular to the ground, annular wiper cord is respectively fitted on active drive cylinder and driven driving cylinder, at the bottom of groove
Portion, which is additionally provided with, scrapes hawk, scrapes hawk and annular wiper cord CONTACT WITH FRICTION, also has in the side wall of cross bar frame and is filled for the dust suction of dust suction
Put.Dust exhaust apparatus includes air draft head, air exhauster and collecting bin, and dust collecter is towards blackboard surface, and dust collecter is interior to be provided with air exhauster, suction
Head is communicated to collecting bin, and collecting bin is fixed on cross bar frame, is additionally provided with ash discharging hole on cross bar frame, is communicated to collecting bin.Climb
Device includes housing, climbed motor and reduction gear box, and climb motor and reduction gear box are fixed with housing, and the motor that climbs turns
The dynamic input for being connected to reduction gear box, is provided with drive gear, sliding tooth wheel and rack is mutual in the output end of reducing gear case
Engagement, the motor that climbs is connected by way of electrical connection with controller
Present invention has the advantages that:The present invention will realize moving up and down for blackboard surface by Vidacare corp, and pass through
Automatic cleaner is carried out can be as needed by the blackboard wiping face of selectivity, and collect the chalk produced in wiping process
Ash, prevents the problem of chalk can disperse, and solves traditional push-and-pull blackboard push-and-pull trouble, it is impossible to the problem of automatic erasing, with knot
Structure is simple, the characteristics of wiping efficiency high.
Brief description of the drawings
The mark in the content and figure expressed by this specification accompanying drawing is briefly described below：
Fig. 1 is the blackboard structure figure of the specific embodiment of the invention.
Fig. 2 is the lifting drive structure chart of the embodiment of the present invention；
Fig. 3 is the automatic cleaner structure chart of the embodiment of the present invention.
Wherein, 1, frame body, 2, lifting drive, 3, chain, the 4, first blackboard surface, the 5, second blackboard surface, 6, automatic
Wiping arrangement, 201, roll cylinder, 202, gear ring, 203, motor, 601, climbing device, 602, electric hydaulic expansion link,
603rd, cross bar frame, 604, scrape hawk, 605, dust exhaust apparatus, the 606, second trigger switch, the 607, first trigger switch, 608, actively
Drive cylinder, 609, driven driving cylinder, 610, annular wiper cord.
Embodiment
Below against accompanying drawing, by the description to embodiment, embodiment of the invention such as involved each component
Shape, construction, the mutual alignment between each several part and annexation, the effect of each several part and operation principle, manufacturing process and
Operate with method etc., is described in further detail, to help those skilled in the art to inventive concept of the invention, technology
Scheme has more complete, accurate and deep understanding.
As Figure 1-3, a kind of blackboard includes frame body 1, the first blackboard surface 4, two blackboard surfaces, controller and automatic erasing
Device 6, frame body 1 is rectangular configuration, and frame body 1 is arranged on the metope in classroom, the first blackboard surface 4 and the second blackboard surface 5
Two ends are slidably connected on the inside of rectangular configuration, and the first blackboard surface 4 and the second blackboard surface 5 can be along the inwall both sides of frame body 1
Move up and down, the first blackboard surface 4 is located at the front of the second blackboard surface 5 and the first blackboard surface 4 is parallel with the second blackboard surface 5, the
The both sides of the top end face of one blackboard surface 4 are respectively equipped with two bar chains 3, and the chain 3 is fixed respectively through lifting drive 2
In the both sides of the top end face of the second blackboard surface 5, lifting drive 2 includes motor 203, rolls cylinder 201 and gear ring 202,
Roll cylinder 201 and rotate the top for being horizontally arranged at frame body 1, motor 203 is connected with the shaft core position for rolling cylinder 201,
The matrix of motor 203 is fixed on frame body 1, and two gear rings 202, two drive gears are respectively fixed with rotary cylinder
Ring 202 is corresponding with two chains 3 respectively, and two chains 3 ride on two gear rings 202 respectively, and chain 3 is meshed with gear ring 202,
Positive and negative change-over switch is installed in the bottom of the lateral wall of frame body 1, positive and negative change-over switch is by way of electrical connection and controller
Connection, when personnel can control the rotating of motor 203 so as to driving 202 turns of gear ring by closing by pressing the card of rotating
Dynamic, the rotation of gear ring 202 is driven, and the first blackboard surface 4 and the second blackboard surface 5 are alternately moved up and down under gravity, when
The top of second blackboard surface, 5 displacement frame body 1 when first blackboard surface 4 is located at 1 lower section of frame body, when the first blackboard surface 4 is located at framework
The lower section of second blackboard surface, 5 displacement frame body 1 during 1 top of body.In order to prevent in writing blackboard word, chalk rubs with blackboard surface and produced
Raw sharp sound, Sound-proof material is equipped with the first blackboard surface 4 and the second blackboard surface 5.
Lateral wall at the two ends of frame body 1 is provided with rack, and rack has two to be vertically arranged in the outer of the two ends of frame body 1 respectively
Wiping arrangement is installed, wherein wiping arrangement includes cross bar frame 603, climbing device 601, electric hydaulic on side wall, the rack
Expansion link 602 and wiping module, climbing device 601 has two to be respectively provided on the rack of the lateral wall at the two ends of frame body 1, described
Climbing device 601 includes housing, climb motor and reduction gear box, is fixed with climb motor and reduction gear box in housing, climbs
Lifting motor is rotatably connected on the input of reduction gear box, reducing gear case output end be provided with drive gear, drive gear with
Rack is intermeshed, and the motor that climbs is connected by way of electrical connection with controller, two climb motor rotation when can drive two
Climbing device 601 is moved up and down along rack synchronous, is externally provided with the housing of climbing device 601 provided with electric hydaulic expansion link 602,
Electric hydaulic expansion link 602 keeps vertical with the first blackboard surface 4, and the two ends of cross bar frame 603 are separately fixed at corresponding electric hydaulic
The top of expansion link 602, the keeping parallelism of 603 and first blackboard surface of cross bar frame 4 and with ground keep level, electric hydaulic expansion link
602 are connected by way of electrical connection with controller and by wiping switch control, in cross bar frame 603 towards the first blackboard surface 4
Face provided with module and the first trigger switch 607 is wiped, be provided with the second trigger switch 606, first in the upper surface of cross bar frame 603
The trigger switch 606 of trigger switch 607 and second is connected by way of electrical connection with controller, and the wiping module is included actively
Driving roller, driven roller, annular wiper cord 610, hawk 604 and dust exhaust apparatus 605 are scraped, it is black in cross bar frame 603 towards first
The face of plate face 4 is provided with left and right ends in groove, groove and is rotatablely equipped with active drive cylinder 608 and driven driving cylinder 609, actively drives
The axis of dynamic cylinder 608 and driven driving cylinder 609 is perpendicular to the ground, annular wiper cord 610 be respectively fitted over active drive cylinder 608 and from
On dynamic driving cylinder 609, it is additionally provided with the bottom of groove and scrapes hawk 604, scrapes hawk 604 and the annular CONTACT WITH FRICTION of wiper cord 610,
The side wall of cross bar frame 603 also has the dust exhaust apparatus 605 for dust suction, and dust exhaust apparatus 605 includes air draft head, air exhauster and collection
Storehouse, dust collecter is towards blackboard surface, and dust collecter is interior to be provided with air exhauster, and dust collecter is communicated to collecting bin, and collecting bin is fixed on cross bar frame
On 603, ash discharging hole is additionally provided with cross bar frame 603, collecting bin is communicated to.
Operation principle：Blackboard word and it is transplanted on if the need to keep on frame body 1 when after the completion of the writing of the first blackboard surface 4
The positive transfer part of positive and negative change-over switch is pressed when square, now the main story of motor 203 drives and moved in the phase of the first blackboard surface 4, and will
Second blackboard surface 5 be lowered into bottom continue write, now electric hydaulic bar be in extended state, wiping arrangement not with the first blackboard
Face 4 is contacted, so as to retain the word of the first blackboard surface 4.Need to wipe the first blackboard surface after the completion of writing in the first blackboard surface 4
When 4, wiping switch is first pressed, now electric hydaulic bar shrinks in the presence of controller, and is triggered to the first trigger switch
607, shrink and stop, wiper cord and the CONTACT WITH FRICTION of the first blackboard surface 4 on wiping arrangement, active drive roller are rotated, and are driven and are wiped
Wipe band side-friction on the first blackboard surface 4 to wipe, the chalk dust on lower wiper cord can be hung by scraping hawk 604, while dust exhaust apparatus
The chalk dust for wiping generation can be drawn into collecting bin by 605 to be collected.The positive transfer part of positive and negative change-over switch, motor are pressed again
203 main storys drive and moved in the phase of the first blackboard surface 4, by the wiped clean of the first blackboard surface 4 in the presence of relative motion, when first
When blackboard surface 4 is moved fully to top, the first trigger switch 607 is separated with the first blackboard surface 4, and now electric hydaulic bar, which resets, draws
Stretch, wiping arrangement is stopped, and then can be write on the second blackboard surface 5.After the completion of the writing of the second blackboard surface 5,
When needing reservation writing on the blackboard and being stretched to top, then the inversion portion of positive and negative change-over switch is pressed, now motor 203 is overturn, drawn
Move the second blackboard surface 5 and rise to top, and put down the first blackboard surface 4 and write.After the completion of the writing of the second blackboard surface 5, need
When wiping plate face, switch is wiped by pressure, the first trigger switch 607 touches electric hydaulic bar when on the second blackboard surface 5 and received
Contracting stops, while the second trigger switch 606 is contacted with the bottom of the first blackboard surface 4, active drive roller is rotated, and drives wiper cord
Side-friction is wiped on the second blackboard surface 5, and the chalk dust on lower wiper cord can be hung by scraping hawk 604, while the meeting of dust exhaust apparatus 605
The chalk dust for wiping generation is drawn into collecting bin to collect.The inversion portion of positive and negative change-over switch, the main story of motor 203 are pressed again
Drive and moved in the phase of the second blackboard surface 5, the first blackboard surface 4 is moved downward, the motor that simultaneously climbs is rotated, drive cross bar frame
603 move downward with the bottom of the first blackboard surface 4, by the wiped clean of the second blackboard surface 5, when the second blackboard surface 5, which is wiped, to be completed,
First trigger switch 607 is separated with the second blackboard surface 5, and now the second trigger switch 606 also produces closure signal, now controller
Control expansion link draws high reset, and wiping arrangement is stopped, and controls climbing device 601 to climb reset, realize blackboard surface by
Need to wipe, it is convenient and swift.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that the present invention is implemented not by aforesaid way
Limitation, as long as the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress is employed, or without changing
Enter and the design of the present invention and technical scheme are directly applied into other occasions, within protection scope of the present invention.This hair
Bright protection domain should be determined by the scope of protection defined in the claims.
Claims (7)
1. a kind of blackboard, it is characterised in that the blackboard includes frame body (1), the first blackboard surface (4), two blackboard surfaces, controller
With automatic cleaner (6), frame body (1) is rectangular configuration, and frame body (1) is arranged on the metope in classroom, the first blackboard surface
(4) it is slidably connected on the inside of rectangular configuration with the two ends of the second blackboard surface (5), the first blackboard surface (4) and the second blackboard surface (5)
It can be moved up and down along frame body (1) inwall both sides, the first blackboard surface (4) is located at the front and first of the second blackboard surface (5)
Blackboard surface (4) is parallel with the second blackboard surface (5), and two bar chains are respectively equipped with the both sides of the top end face of the first blackboard surface (4)
(3), the chain (3) is separately fixed at the both sides of the second blackboard surface (5) top end face through lifting drive (2), described black
Lateral wall of the plate at frame body (1) two ends is provided with rack, and rack has two outsides for being vertically arranged in frame body (1) two ends respectively
Wiping arrangement is installed on wall, the rack.
2. blackboard according to claim 1, it is characterised in that the lifting drive (2) includes motor
(203) cylinder (201) and gear ring (202), are rolled, cylinder (201) is rolled and rotates the top for being horizontally arranged at frame body (1), in rolling
The shaft core position of dynamic cylinder (201) is connected with motor (203), and the matrix of motor (203) is fixed on frame body (1),
Two gear rings (202) are respectively fixed with rotary cylinder, two sliding tooth torus (202) are corresponding with two chains (3) respectively, two
Chain (3) rides on two gear rings (202) respectively, and chain (3) is meshed with gear ring (202), in frame body (1) lateral wall
Bottom is provided with positive and negative change-over switch, and positive and negative change-over switch is connected by way of electrical connection with controller.
3. blackboard according to claim 1, it is characterised in that the automatic cleaner (6) include cross bar frame (603),
Climbing device (601), electric hydaulic expansion link (602), wiping switch and wiping module, climbing device (601) have two difference
On the rack for being located at the lateral wall at frame body (1) two ends, it is externally provided with climbing device (601) provided with electric hydaulic expansion link
(602), electric hydaulic expansion link (602) is vertical with the first blackboard surface (4) holding, and cross bar frame (603) two ends are separately fixed at pair
The top for the electric hydaulic expansion link (602) answered, cross bar frame (603) is kept with the first blackboard surface (4) keeping parallelism and with ground
Level, electric hydaulic expansion link (602) is connected by way of electrical connection with controller and by wiping switch control, in cross bar
Frame (603) is provided with towards the face of the first blackboard surface (4) and wipes module and the first trigger switch (607), in the upper of cross bar frame (603)
End face is provided with the second trigger switch (606), the side that the first trigger switch (607) and the second trigger switch (606) pass through electrical connection
Formula is connected with controller.
4. blackboard according to claim 3, it is characterised in that the wiping module includes active drive roller, driven rolling
Cylinder, annular wiper cord (610), hawk (604) and dust exhaust apparatus (605) are scraped, in cross bar frame (603) the first blackboard surface of direction (4)
Face be provided with groove, left and right ends are rotatablely equipped with active drive cylinder (608) and driven driving cylinder (609) in groove, actively drive
Dynamic cylinder (608) and the axis of driven driving cylinder (609) are perpendicular to the ground, and annular wiper cord (610) is respectively fitted over active drive cylinder
(608) and on driven driving cylinder (609), it is additionally provided with the bottom of groove and scrapes hawk (604), is scraped hawk (604) and wiped with annular
Band (610) CONTACT WITH FRICTION, also has the dust exhaust apparatus (605) for dust suction in the side wall of cross bar frame (603).
5. blackboard according to claim 4, it is characterised in that the dust exhaust apparatus (605) include air draft head, air exhauster and
Collecting bin, dust collecter is towards blackboard surface, and dust collecter is interior to be provided with air exhauster, and dust collecter is communicated to collecting bin, and collecting bin is fixed on horizontal stroke
On bridge (603), ash discharging hole is additionally provided with cross bar frame (603), collecting bin is communicated to.
6. blackboard according to claim 3, it is characterised in that the climbing device (601) includes housing, climb motor and
Climb motor and reduction gear box are fixed with reduction gear box, housing, the motor that climbs is rotatably connected on the defeated of reduction gear box
Enter end, drive gear is provided with the output end of reducing gear case, sliding tooth wheel and rack intermeshing, the motor that climbs passes through electrical connection
Mode be connected with controller.
7. blackboard according to claim 1, it is characterised in that in first blackboard surface (4) and the second blackboard surface (5)
Provided with Sound-proof material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710626113.6A CN107297976A (en) | 2017-07-27 | 2017-07-27 | A kind of blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710626113.6A CN107297976A (en) | 2017-07-27 | 2017-07-27 | A kind of blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107297976A true CN107297976A (en) | 2017-10-27 |
Family
ID=60133117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710626113.6A Pending CN107297976A (en) | 2017-07-27 | 2017-07-27 | A kind of blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107297976A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108790515A (en) * | 2018-06-21 | 2018-11-13 | 蔡回炯 | A kind of blackboard of middle school teaching |
| CN108944197A (en) * | 2018-07-13 | 2018-12-07 | 柏涛涛 | A kind of multi-functional environment-protection dust-absorbing blackboard device |
| CN110667286A (en) * | 2019-11-14 | 2020-01-10 | 刘楚香 | Independent lifting blackboard |
| CN111419002A (en) * | 2020-03-20 | 2020-07-17 | 温州大学 | Multimedia equipment applied to teaching |
| CN111688390A (en) * | 2020-07-09 | 2020-09-22 | 张素平 | Lifting blackboard |
| CN112895767A (en) * | 2021-02-04 | 2021-06-04 | 深圳华文网教育科技有限公司 | Teaching blackboard capable of automatically stretching |
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| US5216776A (en) * | 1992-01-27 | 1993-06-08 | Dennison Daniel C | Automatic blackboard eraser apparatus |
| CN2323983Y (en) * | 1998-01-14 | 1999-06-16 | 李春宪 | Automatic cleaning machine for blackboard |
| CN2564364Y (en) * | 2002-07-30 | 2003-08-06 | 卢昊 | Automatic blackboard eraser |
| CN2597211Y (en) * | 2003-01-24 | 2004-01-07 | 杨勇 | Fully-automatic lift dust-absorbing blackboard |
| CN101168338A (en) * | 2006-10-25 | 2008-04-30 | 郭佳松 | Lamination blackboard |
| CN203410212U (en) * | 2013-06-14 | 2014-01-29 | 王永义 | Remote automatic brushing blackboard |
| CN204547464U (en) * | 2015-03-13 | 2015-08-12 | 湖北文理学院 | Multi-functional blackboard |
| CN204936622U (en) * | 2015-09-14 | 2016-01-06 | 马寿军 | A kind of teaching aid with auto-erasing and dust exhaust apparatus |
| KR20160099219A (en) * | 2015-02-12 | 2016-08-22 | (주)금강칠판교구산업 | Stand-type, fixed-type multi-surface board |
| CN106346984A (en) * | 2016-09-12 | 2017-01-25 | 芜湖能盟信息技术有限公司 | Automatic erased blackboard |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5216776A (en) * | 1992-01-27 | 1993-06-08 | Dennison Daniel C | Automatic blackboard eraser apparatus |
| CN2323983Y (en) * | 1998-01-14 | 1999-06-16 | 李春宪 | Automatic cleaning machine for blackboard |
| CN2564364Y (en) * | 2002-07-30 | 2003-08-06 | 卢昊 | Automatic blackboard eraser |
| CN2597211Y (en) * | 2003-01-24 | 2004-01-07 | 杨勇 | Fully-automatic lift dust-absorbing blackboard |
| CN101168338A (en) * | 2006-10-25 | 2008-04-30 | 郭佳松 | Lamination blackboard |
| CN203410212U (en) * | 2013-06-14 | 2014-01-29 | 王永义 | Remote automatic brushing blackboard |
| KR20160099219A (en) * | 2015-02-12 | 2016-08-22 | (주)금강칠판교구산업 | Stand-type, fixed-type multi-surface board |
| CN204547464U (en) * | 2015-03-13 | 2015-08-12 | 湖北文理学院 | Multi-functional blackboard |
| CN204936622U (en) * | 2015-09-14 | 2016-01-06 | 马寿军 | A kind of teaching aid with auto-erasing and dust exhaust apparatus |
| CN106346984A (en) * | 2016-09-12 | 2017-01-25 | 芜湖能盟信息技术有限公司 | Automatic erased blackboard |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108790515A (en) * | 2018-06-21 | 2018-11-13 | 蔡回炯 | A kind of blackboard of middle school teaching |
| CN108944197A (en) * | 2018-07-13 | 2018-12-07 | 柏涛涛 | A kind of multi-functional environment-protection dust-absorbing blackboard device |
| CN110667286A (en) * | 2019-11-14 | 2020-01-10 | 刘楚香 | Independent lifting blackboard |
| CN111419002A (en) * | 2020-03-20 | 2020-07-17 | 温州大学 | Multimedia equipment applied to teaching |
| CN111419002B (en) * | 2020-03-20 | 2021-12-07 | 温州大学 | Multimedia equipment applied to teaching |
| CN111688390A (en) * | 2020-07-09 | 2020-09-22 | 张素平 | Lifting blackboard |
| CN112895767A (en) * | 2021-02-04 | 2021-06-04 | 深圳华文网教育科技有限公司 | Teaching blackboard capable of automatically stretching |
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Application publication date: 20171027 |