CN203697772U - Dual-purpose blackboard device - Google Patents
Dual-purpose blackboard device Download PDFInfo
- Publication number
- CN203697772U CN203697772U CN201420055756.1U CN201420055756U CN203697772U CN 203697772 U CN203697772 U CN 203697772U CN 201420055756 U CN201420055756 U CN 201420055756U CN 203697772 U CN203697772 U CN 203697772U
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- CN
- China
- Prior art keywords
- blackboard
- triangular prism
- blackboard eraser
- main body
- plastic cement
- 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
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- Drawing Aids And Blackboards (AREA)
Abstract
Provided is a dual-purpose blackboard device. The dual-purpose blackboard device comprises a frame and a blackboard body which is made of transparent glass and fixedly connected with the frame. A holographic transparent projection film is pasted on the back face of the blackboard body. A row of triangular prisms which can rotate synchronously are arranged on the rear portion of the blackboard body, the side surfaces of all the triangular prisms are consistent relative to the arranged position of the blackboard body, and the side surface of each triangular prism is provided with a plastic cement colored paper layer. The dual-purpose blackboard device mainly has the advantages that the blackboard body is made of transparent tempered glass, a gel ink pen or an oily pen is used for writing on a blackboard, and thus the dust pollution problem caused by chalk is completely solved; due to the fact that the holographic transparent projection film is pasted on the back face of the blackboard body, projection content can be directly displayed on the blackboard; for the reason that the row of triangular prisms which can rotate synchronously are arranged on the rear portion of the blackboard body, all the triangular prisms form the background of the blackboard body through the plastic cement colored paper layers arranged on the side surfaces of the triangular prisms, background colors can be chosen according to teaching content, and the colors of the plastic cement colored paper layers can also be replaced conveniently; due to a blackboard eraser tool, the blackboard can be wiped clean quickly and conveniently.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly has projection and writing function Double-purpose blackboard device, belongs to and writes drawing article technical field.
Background technology
Blackboard is indispensable teaching aid.Traditional blackboard deposits that all kinds of corrupt practices creep in, the chalk that contains gypsum is on blackboard when the word on writing words and blackboard wiping, capital produces dust pollution, this pollution not only causes the irreversible infringement of respiratory system for the teachers association who teaches for a long time, also can produce and be unfavorable for healthy impact for the student under dais.In recent years, along with the fast development of computer technology, multimedia teaching is universal rapidly in various kinds of schools, and multimedia teaching is in improving students ' interest of study and teachers ' teaching quality, reduce the utilization rate of teacher's writing on the blackboard, reduced to a certain extent the dust pollution in classroom.Multimedia teaching need to be used projection screen, conventionally projection screen is suspended on blackboard top, while needing projection, projection screen is fallen, the curtain falling can take most of area of blackboard, if brought a difficult problem when now teacher needs integrate contents to do some annotations or expansion explanation on blackboard, needing to rise curtain, or can only utilize the limited area that blackboard is not taken by curtain to explain, is very inconvenience.
Utility model content
The purpose of this utility model is the drawback for prior art, and a kind of writing on the blackboard, but also Double-purpose blackboard device that can clear demonstration projected image not only can write is provided.
Problem described in the utility model realizes with following technical proposals:
A kind of Double-purpose blackboard device, special feature is: it comprises framework and the blackboard main body with the fixing clear glass of framework, paste holographic transparent projection film at the blackboard main body back side, blackboard back body is provided with the synchronous triangular prism rotating of a row, the relative blackboard main body of side surface of each triangular prism that orientation is set is consistent, each triangular prism side surface is provided with plastic cement ticker tape layer.
Above-mentioned Double-purpose blackboard device, the two ends up and down of described each triangular prism are respectively equipped with turning cylinder and lower turning cylinder, rotate up and down the axis of axle and the geometric center of triangular prism overlaps, upper turning cylinder is rotatably assorted with the upper bracket that is fixed on framework upper, lower turning cylinder is rotatably assorted with the undersetting that is fixed on framework bottom, lower turning cylinder is provided with moving runner, and the moving runner of two adjacent triangular prisms forms and is in transmission connection through idle pulley; Described device is also provided with motor, and motor is fixed on framework bottom, is positioned at the side of end triangular prism, and driving wheel is set on motor output shaft, and driving wheel engages with the moving runner of end triangular prism.
Above-mentioned Double-purpose blackboard device, the color difference of plastic cement ticker tape layer on the different side surfaces of described each triangular prism, the color of the plastic cement ticker tape layer on the identical side surface of the relative blackboard main direction of each triangular prism is identical.
Above-mentioned Double-purpose blackboard device, the height of described each triangular prism mates with blackboard body height.
Above-mentioned Double-purpose blackboard device, described device is also provided with mobile blackboard eraser mechanism, mobile blackboard eraser mechanism comprises blackboard eraser slide block and Slide-rail for blackboard eraser, article two, Slide-rail for blackboard eraser is separately fixed at framework upper and bottom, blackboard eraser slide block and Slide-rail for blackboard eraser are slidably matched, the face of the corresponding blackboard main body of blackboard eraser slide block is provided with blackboard eraser, and the bristle of blackboard eraser contacts with blackboard main body is positive.
Above-mentioned Double-purpose blackboard device, is provided with idler gear mounting between described adjacent two undersettings, and idler shaft is installed at the center of idle pulley, and idler shaft and idler gear mounting are rotatably assorted.
The utility model has the double effects of writing blackboard and projection screen concurrently, and its major advantage is as follows: 1, blackboard body adopts transparent toughened glass, is write on blackboard by free ink pen or oil pen, thoroughly solves the dust pollution question that chalk produces; 2, paste holographic transparent projection film at the blackboard body back side, can directly on blackboard, show project content, the use of abandoning projection screen, in simplifying teaching aid, provide teaching means more flexibly to teacher, be conducive to further improve teaching efficiency; 3, in blackboard back body, one row is set and can synchronously rotates triangular prism, each triangular prism forms the background of blackboard main body by the plastic cement ticker tape layer arranging on its side surface, can optionally turn to different color face according to content of courses operation triangular prism group, utilize different color blackboard background improve student's learning interest and the memory to knowledge point, can also change easily the color of plastic cement ticker tape layer; 4, board wiping device can be quick and convenient clean by blackboard-cleaning.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view (not in scale) of Fig. 2.
In figure, each list of reference numerals is: 1, framework, 2, blackboard main body, 3, holographic transparent projection film, 4, Slide-rail for blackboard eraser, 5, blackboard eraser slide block, 6, blackboard eraser, 7, triangular prism, 8, upper bracket, 9, upper turning cylinder, 10, moving runner, 11, lower turning cylinder, 12, undersetting, 13, idle pulley, 14, idler shaft, 15, idler gear mounting, 16, motor, 17, driving gear, 18, plastic cement ticker tape layer.
The specific embodiment
Referring to Fig. 1-3, the utility model comprises framework 1 and the blackboard main body 2 with the fixing transparent toughened glass of framework, paste holographic transparent projection film 3 at the blackboard main body back side, blackboard back body is provided with the triangular prism 7 that a row can synchronously rotate, the relative blackboard main body of side surface of each triangular prism that orientation is set is consistent, to can be spliced into the background plane that is parallel to blackboard main body.Each triangular prism side surface is provided with plastic cement ticker tape layer 18, the color difference of plastic cement ticker tape layer on the different side surfaces of each triangular prism, and the color of the plastic cement ticker tape layer on the identical side surface of the relative blackboard main direction of each triangular prism is identical.The side surface synchronous rotary that each triangular prism is provided with same color is during to the position parallel with blackboard main body, can mutually be connected the color background that forms clear glass blackboard main body, in the time of 120 ° of each triangular prism synchronous rotaries, can make background switch a color, can switch altogether three kinds of different colors.The utility model is using transparent toughened glass as blackboard main body, abandoning tradition chalk, and the front of using free ink pen or oil pen main body on blackboard instead is carried out writing on the blackboard and is write, and thoroughly solves the dust pollution question that chalk produces.Holographic transparent projection film is directly pasted at the blackboard body back side, can in blackboard main body, be produced projection image clearly, without projection screen is set, simplified teaching aid again, provide teaching means more flexibly to teacher.The background of one group of triangular prism formation can make writing on the blackboard and the projected image in blackboard main body, write obtain better visual effect.Utilize plastic cement ticker tape layer as color background, cheap, and can change easily as required the color of plastic cement ticker tape.
Still, referring to Fig. 1-3, the two ends up and down of each triangular prism 7 are respectively equipped with turning cylinder 9 and lower turning cylinder 11, rotate up and down the axis of axle and the geometric center of triangular prism overlaps.Be provided with row's upper bracket 8 at framework upper, be provided with row's undersetting 12 in framework bottom, the quantity of upper bracket, undersetting is consistent with the quantity of triangular prism, for supporting upper bracket and the undersetting position correspondence of a triangular prism.Upper turning cylinder and each upper bracket of each triangular prism are rotatably assorted, and the lower turning cylinder undersetting corresponding with it of each triangular prism is rotatably assorted, and on lower turning cylinder, between the moving runner of fixed rotator 10, two adjacent triangular prisms, form and are in transmission connection through idle pulley 13.Between adjacent two undersettings 8, be provided with idler gear mounting 15, idler shaft 14 is installed at the center of idle pulley, and idler shaft and idler gear mounting are rotatably assorted.The synchronous rotation of each triangular prism is driven by motor 16, and motor 16 is fixed on framework bottom, is positioned at the end triangular prism side of one group of triangular prism, and driving wheel 17 is set on motor output shaft, and driving wheel engages with the moving runner of head end triangular prism.Starter motor, by 120 ° of electric controling part control motor rotations, driven by motor driving wheel 17 rotates, and the moving runner arranging with the each triangular prism of rotation of driving wheel synchronously rotates 120 ° under the effect of each idle pulley, can switch different color background.Background mechanism, in strengthening drop shadow effect and writing on the blackboard effect, is conducive to improve student's learning interest, contributes to the memory to knowledge point.Described driving wheel, each idle pulley, each moving runner can adopt gear drive or friction pulley transmission.
Still referring to Fig. 1, for convenience of blackboard wiping main body efficiently, described device is also provided with mobile blackboard eraser mechanism, mobile blackboard eraser mechanism comprises blackboard eraser slide block 5 and Slide-rail for blackboard eraser 4, article two, Slide-rail for blackboard eraser is separately fixed at framework upper and bottom, and blackboard eraser slide block two ends and Slide-rail for blackboard eraser are slidably matched, and the face of the corresponding blackboard main body of blackboard eraser slide block is provided with blackboard eraser 6, the bristle of blackboard eraser contacts with blackboard main body is positive, and the height dimension of blackboard eraser mates with the height dimension that blackboard main body can be write scope.Promotion blackboard eraser slide block moves back and forth along Slide-rail for blackboard eraser just can be by the content wiped clean of writing in blackboard main body.
Claims (6)
1. a Double-purpose blackboard device, it is characterized in that: it comprises framework (1) and the blackboard main body (2) with the fixing clear glass of framework, paste holographic transparent projection film (3) at the blackboard main body back side, blackboard back body is provided with the synchronous triangular prism rotating of a row, the relative blackboard main body of side surface of each triangular prism that orientation is set is consistent, each triangular prism side surface is provided with plastic cement ticker tape layer (18).
2. Double-purpose blackboard device according to claim 1, it is characterized in that, the two ends up and down of described each triangular prism (7) are respectively equipped with turning cylinder (9) and lower turning cylinder (11), rotate up and down the axis of axle and the geometric center of triangular prism overlaps, upper turning cylinder is rotatably assorted with the upper bracket (8) that is fixed on framework upper, lower turning cylinder is rotatably assorted with the undersetting (12) that is fixed on framework bottom, lower turning cylinder is provided with moving runner (10), and the moving runner of two adjacent triangular prisms forms and is in transmission connection through idle pulley (13); Described device is also provided with motor (16), and motor is fixed on framework bottom, is positioned at the side of end triangular prism, and driving wheel (17) is set on motor output shaft, and driving wheel engages with the moving runner of end triangular prism.
3. Double-purpose blackboard device according to claim 2, is characterized in that, the color difference of plastic cement ticker tape layer on the different side surfaces of described each triangular prism, and the color of the plastic cement ticker tape layer on the identical side surface of the relative blackboard main direction of each triangular prism is identical.
4. Double-purpose blackboard device according to claim 3, is characterized in that, the height of described each triangular prism mates with blackboard body height.
5. Double-purpose blackboard device according to claim 4, it is characterized in that, described device is also provided with mobile blackboard eraser mechanism, mobile blackboard eraser mechanism comprises blackboard eraser slide block (5) and Slide-rail for blackboard eraser (4), article two, Slide-rail for blackboard eraser is separately fixed at framework upper and bottom, blackboard eraser slide block and Slide-rail for blackboard eraser are slidably matched, and the face of the corresponding blackboard main body of blackboard eraser slide block is provided with blackboard eraser (6), and the bristle of blackboard eraser contacts with blackboard main body is positive.
6. Double-purpose blackboard device according to claim 5, is characterized in that, is provided with idler gear mounting (15) between described adjacent two undersettings (8), and idler shaft (14) is installed at the center of idle pulley, and idler shaft and idler gear mounting are rotatably assorted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420055756.1U CN203697772U (en) | 2014-01-29 | 2014-01-29 | Dual-purpose blackboard device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420055756.1U CN203697772U (en) | 2014-01-29 | 2014-01-29 | Dual-purpose blackboard device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203697772U true CN203697772U (en) | 2014-07-09 |
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ID=51048262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420055756.1U Expired - Fee Related CN203697772U (en) | 2014-01-29 | 2014-01-29 | Dual-purpose blackboard device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203697772U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108961863A (en) * | 2018-07-19 | 2018-12-07 | 合肥职业技术学院 | A kind of multimedia education system for science of financial management |
| CN109109520A (en) * | 2018-10-16 | 2019-01-01 | 韩金轩 | Strengthened glass blackboard is used in a kind of teaching |
| CN111968475A (en) * | 2019-05-20 | 2020-11-20 | 郑州幼儿师范高等专科学校 | Simulation model for preschool education major teaching |
| CN112356597A (en) * | 2020-11-09 | 2021-02-12 | 安徽文香信息技术有限公司 | Intelligent blackboard with three-board writing function and wiping method thereof |
-
2014
- 2014-01-29 CN CN201420055756.1U patent/CN203697772U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108961863A (en) * | 2018-07-19 | 2018-12-07 | 合肥职业技术学院 | A kind of multimedia education system for science of financial management |
| CN108961863B (en) * | 2018-07-19 | 2020-07-14 | 合肥职业技术学院 | Multimedia teaching system for financial management |
| CN109109520A (en) * | 2018-10-16 | 2019-01-01 | 韩金轩 | Strengthened glass blackboard is used in a kind of teaching |
| CN109109520B (en) * | 2018-10-16 | 2020-08-21 | 上海众屹科技有限公司 | Toughened glass blackboard for teaching |
| CN111968475A (en) * | 2019-05-20 | 2020-11-20 | 郑州幼儿师范高等专科学校 | Simulation model for preschool education major teaching |
| CN112356597A (en) * | 2020-11-09 | 2021-02-12 | 安徽文香信息技术有限公司 | Intelligent blackboard with three-board writing function and wiping method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20150129 |
|
| EXPY | Termination of patent right or utility model |