CN207257181U - A kind of dustless projection blackboard - Google Patents
A kind of dustless projection blackboard Download PDFInfo
- Publication number
- CN207257181U CN207257181U CN201721028948.3U CN201721028948U CN207257181U CN 207257181 U CN207257181 U CN 207257181U CN 201721028948 U CN201721028948 U CN 201721028948U CN 207257181 U CN207257181 U CN 207257181U
- Authority
- CN
- China
- Prior art keywords
- screen
- rollong
- frame
- driving roller
- dustless
- 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.)
- Expired - Fee Related
Links
- 239000004744 fabric Substances 0.000 claims abstract description 15
- 239000003550 marker Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- Drawing Aids And Blackboards (AREA)
Abstract
It the utility model is related to a kind of dustless projection blackboard, including frame (1), transparent back panel (2), screen-rollong (3), driving roller (4), driven roller (5), hairbrush (6), motor (8) and retarder (9), it is characterized in that, the frame (1) is used to be installed on the basis of metope, the driving roller (4) and driven roller (5) is rotatably mounted on the upper and lower side of frame (1) by bearing respectively, the hairbrush (6) has two, it is separately mounted to the outside of the upper and lower side of frame (1) and the plastic cloth positioned at screen-rollong (3), for removing the writing on plastic cloth surface, motor (8) can drive driving roller (4) to rotate by retarder (9).The dustless projection blackboard of the utility model, it is simple in structure, environmentally friendly, multi-functional, there is motor-driven screen-rollong, circulation erasing is carried out to the screen of Student oriented, have LED light to form backlight after screen, do not hinder eye, the backlight after screen can close, and be projected for watching.
Description
Technical field
Teaching equipment material technical field is the utility model is related to, more particularly to a kind of dustless projection blackboard.
Background technology
In each classroom, there is an essential equipment, that is, blackboard.The brush that present blackboard has most original exists
Black blackboard on wall, also has the green blackboard of hung on a wall, the blank also write using black marker, is more had advanced
Touch screen electronic blackboard.It is second of blackboard that classroom is most common at present, and this blackboard is cheap, and easy for installation, but usually
Classroom teaching has inconvenience, it still uses chalk-writing first, and the dust that chalk produces can bring a series of strong
Kang Wenti, this is all a kind of potential hazard to student and teacher.Secondly, this blackboard also needs to teacher or student uses by hand
Blackboard eraser erasing out handwriting, not only aggravates work load to teacher, and also the learning efficiency to student also brings along certain influence.Also
With the presence of this blackboard and classroom used one huge contradiction of projecting apparatus now, on this series of problems student and religion
Teacher has an intimate knowledge, and when outdoor light is relatively dark or evening, the lamp that teacher needs to open classroom front row illuminates blackboard
So as to which student can be allowed to see the word write on blackboard, but after front-seat lamp is opened, light will influence whether projecting apparatus
Drop shadow effect, so the front-seat lamp of the switch of teacher back and forth can be frequently seen, come be easy to make student see clearly the word on blackboard or
Ppt on projecting apparatus, so also can the unnecessary teaching load for aggravating teacher.
Therefore, classroom of the prior art is primarily present following two problems with blackboard：1) used now on classroom black
Plate is mostly tradition chalk-writing blackboard, and this blackboard not only needs to go to wipe by hand, but also dust is to the health of teachers
Influence also very big；2) projecting apparatus in classroom and blackboard are generally all there are a contradiction now, at night or outdoor optical
Line turns on light than needing to open the lamp at classroom front row in the case of dark and influences whether the viewing effect of projecting apparatus, does not turn on light
Word on blackboard is not seen again.
Utility model content
The goal of the invention of the utility model is to provide a kind of simple in structure, environmentally friendly, multi-functional dustless projection blackboard, this is black
Plate has motor-driven screen-rollong, and circulation erasing is carried out to the screen of Student oriented, has LED light to form backlight after screen, does not hinder
, the backlight after screen can close, and be projected for watching.
The concrete technical scheme of the utility model is a kind of dustless projection blackboard, including frame, transparent back panel, screen-rollong, master
Dynamic roller, driven roller, hairbrush, motor and retarder, it is characterised in that the frame is used to be installed on the basis of metope,
The driving roller and driven roller are rotatably mounted on the upper and lower side of frame, driving roller and driven roller by bearing respectively
Rotation axis it is parallel to the ground, the screen-rollong is formed by one piece of white square plastic cloth is end to end, screen-rollong set master
On dynamic roller and driven roller and it is tensioned, the transparent back panel is fixed on frame and is adjacent to one section of screen-rollong in Student oriented
Below, the outside for being printed with two, being separately mounted to the upper and lower side of frame and the plastic cloth positioned at screen-rollong, for removing
The engine base of the writing on plastic cloth surface, the motor and retarder is fixedly mounted on frame, and motor can by retarder
Driving roller is driven to rotate.
Further, multiple LED light are further included, multiple LED light are evenly arranged in transparent back panel, for shining
Bright screen-rollong.
Further, the distance between rotation axis of the rotation axis of the driving roller and driven roller can be with
Adjustment, for being tensioned screen-rollong.
Further, the LED light has switch, and when going to school and leaving school, which also can use the computer control on classroom
Make into line flicker.
Further, write using marker on the plastic cloth of screen-rollong.
The beneficial effects of the utility model are：1) the dustless projection blackboard of the utility model has motor-driven screen-rollong,
Circulation erasing can be carried out to the writing on the screen of Student oriented, hygienic environment-protecting, reduces labor intensity；2) there is LED light after screen
Backlight is formed, does not hinder eye, the backlight after screen can close, and be projected for watching, and not have to thus switch indoor light repeatedly,
Influence student's study；3) backlight after screen can flicker under computer control, go to school and leave school the time for reminding.
Brief description of the drawings
Fig. 1 is the front view of the dustless projection blackboard of the utility model；
Fig. 2 is the sectional view of the dustless projection blackboard of the utility model；
In figure, 1- frames, 2- transparent back panels, 3- screen-rollongs, 4- driving rollers, 5- driven rollers, 6- hairbrush, 7-LED lamps, 8-
Motor, 9- retarders.
Embodiment
The technical solution of the utility model is further described with reference to Figure of description.
As shown in attached drawing 1-2, a kind of dustless projection blackboard of the utility model, including frame 1, transparent back panel 2, screen-rollong 3,
Driving roller 4, driven roller 5, hairbrush 6, multiple LED light 7, motor 8 and retarder 9.
The frame 1 is used to be installed on the basis of metope.
The driving roller 4 and driven roller 5 are rotatably mounted on the upper and lower side of frame 1 by bearing respectively, actively roll
The rotation axis of wheel 4 and driven roller 5 is parallel to the ground, and the screen-rollong 3 is end to end by one piece of white square plastic cloth
Form.Square plastic cloth best surfaces frosted, be translucent shape.On the driving roller 4 and driven roller 5 that 3 sets of screen-rollong and it is tensioned.
Vertical sliding slot can be set on the frame 1 of 5 both sides of driving roller 4 and driven roller, and driving roller 4 and driven roller 5 can be
Fixed after suitable position is slided into sliding slot.In this way, the rotation axis of the driving roller 4 and the rotation axis of driven roller 5
The distance between line can adjust, for being tensioned screen-rollong 3.
The transparent back panel 2 is fixed on frame 1 and is adjacent to behind one section of screen-rollong 3 of Student oriented, transparent back panel 2
It can be made of organic glass.
The hairbrush 6 has two, is separately mounted to the outside of the upper and lower side of frame 1 and the plastic cloth positioned at screen-rollong 3.When
When motor 8 drives the rotation of driving roller 4 by retarder 9,3 driving roller 4 of screen-rollong is driven around driving roller 4 and driven roller 5
Loopy moving, the surface of the plastic cloth of swiped through screen-rollong 3 at this time of hairbrush 6, removes the word that marker is write on the plastic cloth of screen-rollong 3
Mark.
The motor 8 and the engine base of retarder 9 are fixedly mounted on frame 1, and motor 8 can be driven by retarder 9
Driving roller 4 rotates.
Multiple LED light 7 are evenly arranged in transparent back panel 2, and installation method can be with gluing.For illuminating screen-rollong 3,
The writing of convenient writing can be seen clearly by student.The LED light 7 have switch, when carrying out projector, can manually by
LED light 7 is closed, and makes projection clear and legible, without the light for closing classroom.LED light 7 can pass through existing control circuit and class
The teaching electronic brain connection of one's parents, when going to school and leaving school, which also can use the computer on classroom to control into line flicker, remind student
Attend class or finish class with teacher.
The dustless projection blackboard of the utility model can be mounted side by side three, can be by middle dustless projection when such as projecting
The LED light 7 of blackboard is closed, and is projected with projector alignment, and at this time, two dustless projection blackboards can also carry out writing on the blackboard on side.
Claims (3)
1. a kind of dustless projection blackboard, including frame (1), transparent back panel (2), screen-rollong (3), driving roller (4), driven roller
(5), hairbrush (6), motor (8) and retarder (9), it is characterised in that the frame (1) is used to be installed on the basis of metope,
The driving roller (4) and driven roller (5) is rotatably mounted on the upper and lower side of frame (1), driving roller by bearing respectively
(4) and driven roller (5) rotation axis it is parallel to the ground, the screen-rollong (3) is by one piece of white square plastic cloth head and the tail
Connect and form, on the driving roller (4) and driven roller (5) of screen-rollong (3) set and be tensioned, the transparent back panel (2) is fixed on frame
On frame (1) and it is adjacent to behind one section of screen-rollong (3) of Student oriented, the hairbrush (6) there are two, is separately mounted to frame
(1) outside of upper and lower side and the plastic cloth positioned at screen-rollong (3), for removing the writing on plastic cloth surface, the motor (8)
It is fixedly mounted on the engine base of retarder (9) on frame (1), motor (8) can drive driving roller (4) by retarder (9)
Rotate.
A kind of 2. dustless projection blackboard according to claim 1, it is characterised in that multiple LED light (7) are further included, it is described
Multiple LED light (7) be evenly arranged in transparent back panel (2), for illuminating screen-rollong (3).
3. any one a kind of dustless projection blackboard according to claim 1-2, it is characterised in that existed using marker
Write on the plastic cloth of screen-rollong (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721028948.3U CN207257181U (en) | 2017-08-17 | 2017-08-17 | A kind of dustless projection blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721028948.3U CN207257181U (en) | 2017-08-17 | 2017-08-17 | A kind of dustless projection blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207257181U true CN207257181U (en) | 2018-04-20 |
Family
ID=61925542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721028948.3U Expired - Fee Related CN207257181U (en) | 2017-08-17 | 2017-08-17 | A kind of dustless projection blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207257181U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108995447A (en) * | 2018-08-02 | 2018-12-14 | 马浩程 | Roller shutter type blackboard and its control method with rotation |
| CN109080331A (en) * | 2018-08-22 | 2018-12-25 | 王成帅 | A kind of grey dedusting storing blackboard of automatic wiping |
| CN109080330A (en) * | 2018-08-22 | 2018-12-25 | 王成帅 | It is a kind of to utilize the automatic teaching method for wiping grey dedusting storing blackboard |
| CN112918166A (en) * | 2021-01-29 | 2021-06-08 | 山东中医药高等专科学校 | Chinese language and literature auxiliary teaching device |
-
2017
- 2017-08-17 CN CN201721028948.3U patent/CN207257181U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108995447A (en) * | 2018-08-02 | 2018-12-14 | 马浩程 | Roller shutter type blackboard and its control method with rotation |
| CN109080331A (en) * | 2018-08-22 | 2018-12-25 | 王成帅 | A kind of grey dedusting storing blackboard of automatic wiping |
| CN109080330A (en) * | 2018-08-22 | 2018-12-25 | 王成帅 | It is a kind of to utilize the automatic teaching method for wiping grey dedusting storing blackboard |
| CN109080330B (en) * | 2018-08-22 | 2020-10-27 | 王成帅 | Teaching method using automatic dust wiping, removing and storing blackboard |
| CN112918166A (en) * | 2021-01-29 | 2021-06-08 | 山东中医药高等专科学校 | Chinese language and literature auxiliary teaching device |
| CN112918166B (en) * | 2021-01-29 | 2022-05-17 | 山东中医药高等专科学校 | A Chinese language and literature auxiliary teaching device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180420 Termination date: 20210817 |