CN202886827U - Rolling-type writable self-erased projection screen applied to teaching - Google Patents
Rolling-type writable self-erased projection screen applied to teaching Download PDFInfo
- Publication number
- CN202886827U CN202886827U CN 201220640135 CN201220640135U CN202886827U CN 202886827 U CN202886827 U CN 202886827U CN 201220640135 CN201220640135 CN 201220640135 CN 201220640135 U CN201220640135 U CN 201220640135U CN 202886827 U CN202886827 U CN 202886827U
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- projection screen
- curtain
- teaching
- rolling
- writable
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Abstract
The utility model relates to teaching equipment, and in particular relates to a rolling-type writable self-erased projection screen applied to teaching. The rolling-type writable self-erased projection screen comprises a motor, a transmission wheel, a start button, a writable curtain and sponge erasers, wherein the start button is used for controlling the motor to drive the transmission wheel to rotate; the writable curtain is subjected to belt transmission motion through two rolling wheels fixed on a wall; and two sponge erasers installed behind the curtain are tightly contacted with the projection curtain so as to erase the words written on the curtain. By utilizing the projection screen, the projection curtain is enabled to have the function of a blackboard, is convenient to use, and improves the teaching efficiency.
Description
Technical field
The utility model relates to a kind of teaching equipment, particularly relates to a kind of tumbling-type and can write from wiping projection screen.
Background technology
Along with the development of IT application in education sector, computer, projector are popularized in the classroom gradually, and to student's exemplary role, the blackboard that makes is also essential in the classroom during owing to the blackboard writing explanation.Usually teacher says and class hour cooperates the oral explanation of projection screen, and screen text flashes across, the teaching poor effect, to emphasis knowledge when blackboard carries out hand-written explanation, need again to write at blackboard, simultaneously, need to manually wipe in the font that general blackboard is write, extremely inconvenient.
Summary of the invention
The purpose of this utility model is to address the above problem, and a kind of device that normal blackboard is combined with the projection screen function is provided, and the projection screen that can write is had from wiping function.Be achieved through the following technical solutions:
A kind of teaching can be write from wiping projection screen with tumbling-type, comprise driven by motor driving wheel, engaged wheel, the soft projection screen that can write, with the fixing support of wall, sponge blackboard eraser, fixedly support and the start button of sponge blackboard eraser.Described start button is used for controlling motor, and described scroll wheel is connected with wall by support, and when receiving enabling signal, the motor drives driving wheel rotates, and makes projection screen do band transmission campaign.The sponge blackboard eraser of telling is installed in the projection screen rear by support, with the screen close contact, but projection screen made by writing material, when screen motion, realize from wiping function.
Advantage of the present utility model:
1, projection screen can be write, and can directly write at projection screen when teacher explains key content, strengthens the student to the impression of this knowledge point, improves teaching efficient.
2, both can pass through manual erase after writing, also can press start button, and projection screen be rotated realize from wiping, simple and convenient.
Description of drawings
Fig. 1 is that a kind of teaching of the utility model can be write from wiping the projection screen structural representation with tumbling-type.
Embodiment
The 1-driving wheel; 2-can write curtain; The 3-engaged wheel; The upper fixed support of 4-; The upper blackboard eraser bracing frame of 5-; The upper blackboard eraser of 6-; Blackboard eraser under the 7-; Blackboard eraser bracing frame under the 8-; The 9-start button; Fixed support under the 10-; The 11-motor.
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in Figure 1, a kind of teaching of the utility model can be write from wiping projection screen with tumbling-type, comprises motor 11, power wheel 1,3, can write curtain 2, fixed support 4,10, blackboard eraser bracing frame 5,8, blackboard eraser 6,7, start button 10 etc.; When this device uses, projector projects to the teaching content on the curtain, the teacher can directly write explanation on curtain, when retelling next content, both can manually wipe institute's content of writing or only need press start button 9, this button control motor makes driving wheel 1 begin to rotate, and drives curtain 2 and does band transmission campaign, when writing content moved to the screen rear with curtain, sponge blackboard eraser and curtain close contact were wiped the content of writing voluntarily.
Claims (1)
1. a Novel rolling-type can be write from wiping projection screen, comprises motor, driving wheel, follower, projection screen, sponge blackboard eraser, start button etc.; It is characterized in that: described start button control motor, the motor drives driving wheel rotates, and projection screen rotates with driving wheel, two sponge blackboard erasers at projection screen rear and curtain close contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220640135 CN202886827U (en) | 2012-11-21 | 2012-11-21 | Rolling-type writable self-erased projection screen applied to teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220640135 CN202886827U (en) | 2012-11-21 | 2012-11-21 | Rolling-type writable self-erased projection screen applied to teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202886827U true CN202886827U (en) | 2013-04-17 |
Family
ID=48078234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220640135 Expired - Fee Related CN202886827U (en) | 2012-11-21 | 2012-11-21 | Rolling-type writable self-erased projection screen applied to teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202886827U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103507497A (en) * | 2013-10-10 | 2014-01-15 | 河南省佰腾电子科技有限公司 | Blackboard |
-
2012
- 2012-11-21 CN CN 201220640135 patent/CN202886827U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103507497A (en) * | 2013-10-10 | 2014-01-15 | 河南省佰腾电子科技有限公司 | Blackboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20131121 |