CN2282709Y - Screen adsorbable on steel blackboard - Google Patents
Screen adsorbable on steel blackboard Download PDFInfo
- Publication number
- CN2282709Y CN2282709Y CN 96245729 CN96245729U CN2282709Y CN 2282709 Y CN2282709 Y CN 2282709Y CN 96245729 CN96245729 CN 96245729 CN 96245729 U CN96245729 U CN 96245729U CN 2282709 Y CN2282709 Y CN 2282709Y
- Authority
- CN
- China
- Prior art keywords
- projection screen
- screen
- projection
- flexible fabric
- magnet
- 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
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a projection screen used in a classroom. An existing projection screen is suspended through a projection rack, and the projection rack, which has high cost and large volume, is bulky and difficulty to carry. The product has a structure that the edge of a flexible fabric used by a common projection screen is fixedly provided with a magnet. When the projection screen is used, only the flexible fabric is absorbed on a steel blackboard through the magnet fixed on the edge thereof. When the projection screen is carried, the flexible fabric can be rolled into a cylinder and put in a paper sleeve. The utility model has the advantages of provision of a projection screen without need of a projection rack for classroom teaching, academic and technical conferences, low cost, simple structure, good using effect and portability.
Description
The utility model is a kind of teaching aid, is a kind of projection screen that uses in the classroom specifically.
Slide projector, projector has now become classroom instruction and important tool academic, technical conference.They correspondingly all need to cooperate with projection screen, but existing projection screen need use projecting rack to hang, and projecting rack's cost height, the big heaviness of volume carry difficulty.
Do not need projecting rack when the purpose of this utility model provides a kind of the use and can directly be adsorbed on projection screen on the steel blackboard.
Structure of the present utility model is to be fastened with magnet at the edge of the used flexible fabric of a common projection screen.Only need during use the used flexible fabric of common projection screen is got final product on the steel blackboard by the fastening magnet absorption in its edge.Can be rolled into tubular to flexible fabric when carrying and pack in the paper web, very light and handy convenient.Said magnet can be a strip, and is also block.Can be above flexible fabric on one side, or on the both sides of flexible fabric, or the fastening said magnet in four limits.
Advantage of the present utility model and good effect: for classroom instruction and academic, technical conference provide a kind of projecting rack that do not need, can directly be adsorbed on the projection screen on the steel blackboard, its cost hangs down simple in structure but the good carrying convenience of result of use.
Accompanying drawing is the main TV structure synoptic diagram of embodiment.
Embodiment: see accompanying drawing.Edge cementation at the used pearly-lustre fabric 1 of a common projection screen has bar-shaped magnet 2.
Claims (3)
1, a kind of screen that can be adsorbed on the steel blackboard is characterized in that being fastened with magnet at the edge of the used flexible fabric of a common projection screen.
2,, it is characterized in that said magnet is a strip as the said screen that can be adsorbed on the steel blackboard of claim 1.
3,, it is characterized in that at the fastening said magnet in four limits of flexible fabric as the said screen that can be adsorbed on the steel blackboard of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96245729 CN2282709Y (en) | 1996-11-13 | 1996-11-13 | Screen adsorbable on steel blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96245729 CN2282709Y (en) | 1996-11-13 | 1996-11-13 | Screen adsorbable on steel blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2282709Y true CN2282709Y (en) | 1998-05-27 |
Family
ID=33918673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96245729 Expired - Fee Related CN2282709Y (en) | 1996-11-13 | 1996-11-13 | Screen adsorbable on steel blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2282709Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810263A (en) * | 2011-05-31 | 2012-12-05 | 张德林 | Board writing interacting device and enamel projection blackboard combined projection blackboard system device |
| WO2018196386A1 (en) * | 2017-04-25 | 2018-11-01 | 青岛海信电器股份有限公司 | Laser projection screen and projection system |
-
1996
- 1996-11-13 CN CN 96245729 patent/CN2282709Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810263A (en) * | 2011-05-31 | 2012-12-05 | 张德林 | Board writing interacting device and enamel projection blackboard combined projection blackboard system device |
| WO2018196386A1 (en) * | 2017-04-25 | 2018-11-01 | 青岛海信电器股份有限公司 | Laser projection screen and projection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |