CN202428924U - Multipurpose blackboard - Google Patents
Multipurpose blackboard Download PDFInfo
- Publication number
- CN202428924U CN202428924U CN 201120559205 CN201120559205U CN202428924U CN 202428924 U CN202428924 U CN 202428924U CN 201120559205 CN201120559205 CN 201120559205 CN 201120559205 U CN201120559205 U CN 201120559205U CN 202428924 U CN202428924 U CN 202428924U
- Authority
- CN
- China
- Prior art keywords
- panel
- projection screen
- blackboard
- stop sleeve
- guide roller
- 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
- 239000002965 rope Substances 0.000 claims abstract description 11
- 239000012467 final product Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Abstract
The utility model provides a multipurpose blackboard, which belongs to the field of teaching tools. The blackboard comprises a panel and a supporting sleeve, wherein the upper end and the lower end of the panel are provided with a guide roller respectively; a projection screen is arranged on the panel; one end of the projection screen is provided with a traction rope; the other end of the traction rope sequentially bypasses the guide rollers at the upper and lower ends of the panel and then is connected with the other end of the projection screen; support frames are arranged on the two sides of the panel; and the lower ends of the support frames are penetrated from the upper end of the supporting sleeve and are in sliding connection with the supporting sleeve. Compared with the prior art, the blackboard has the characteristics of reasonable design, simple structure, convenience in use, multiple functions and the like.
Description
Technical field
The utility model relates to a kind of teaching aid, specifically a kind of multipurpose blackboard.
Background technology
In the educational class of existing school, blackboard is the teaching aid of often using, and blackboard structure is simple, easy to use, is applicable to a lot of occasions; Projecting apparatus also is the aided education apparatus of often using in the course; When needs illustrate explanation to the student; Need seek projection screen separately and hang over blackboard or other place, need screen be hung on the blackboard, also will again it not removed when screen is not used if the space, classroom is limited; So not only let the people feel loaded down with trivial details, and influenced teaching.Be easy to generate reflective phenomenon during teaching, let the student watch like this, and existing blackboard and projection screen can't the shift position.
Summary of the invention
The technical assignment of the utility model is the deficiency to prior art, and a kind of reasonable in design, multipurpose blackboard that result of use is good is provided.
The utility model solves the technical scheme that its technical problem adopted: comprise panel and stop sleeve; The two ends up and down of panel are respectively arranged with guide roller; Panel is provided with projection screen; Projection screen one end is provided with pulling rope, and the pulling rope other end is connected with the projection screen other end after walking around panel guide roller up and down successively again; The panel both sides are provided with bracing frame, and the bracing frame lower end penetrates from the stop sleeve upper end and is slidingly connected with it.
The projection screen size matches with panel.
Stop sleeve is provided with the rocking bar positioner, and the stop sleeve lower end is provided with base, and the base below is provided with universal wheel.
A kind of multipurpose blackboard of the utility model compared with prior art, the beneficial effect that is produced is:
1), have characteristics such as reasonable in design, simple in structure, function admirable, practicality, one is dual-purpose, has made things convenient for teaching, has improved efficiency of teaching, and has reduced teacher's labour intensity.
2), easy for operation, need not seek projection screen in addition, need not to seek in addition screen suspension place.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model.
Among the figure: 1, guide roller, 2, projection screen, 3, panel, 4, pulling rope, 5, bracing frame, 6, stop sleeve, 7, the rocking bar positioner, 8, base, 9, universal wheel.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done following the detailed description.
Shown in accompanying drawing; A kind of multipurpose blackboard of the utility model; Its structure comprises panel 3 and stop sleeve 6, and the two ends up and down of panel 3 are respectively arranged with guide roller 1, and panel 3 is provided with projection screen 2; Projection screen 2 one ends are provided with pulling rope 4, and pulling rope 4 other ends are connected with projection screen 2 other ends after walking around the guide roller 1 of panel about in the of 3 successively again; Panel 3 both sides are provided with bracing frame 5, and bracing frame 5 lower ends penetrate from stop sleeve 6 upper ends and are slidingly connected with it.
Projection screen 2 sizes match with panel 3.Stop sleeve 6 is provided with rocking bar positioner 7, and stop sleeve 6 lower ends are provided with base 8, and base 8 belows are provided with universal wheel 9.
Through the random position of movable panel 3 of base 8, utilize the height that rocking bar positioner 7 can control panel 3.When guide roller 1 rotated, guide roller 1 drove pulling rope 4, and projection screen 2 is rotated with pulling rope 4.During writing words, projection screen 2 is hidden in the back side of panel 3 on panel 3, when needing the projection aided education, can turn to panel 3 fronts to projection screen 2 and carry out the projection demonstration, when not using, again projection screen 2 is rotated back into panel 3 back sides and gets final product.
A kind of its processing and fabricating of multipurpose blackboard of the utility model is simple and convenient, and processing and fabricating gets final product shown in the by specification accompanying drawing.
Except that the described technical characterictic of specification, be this professional's known technology.
Claims (3)
1. multipurpose blackboard; Comprise panel and stop sleeve; The two ends up and down that it is characterized in that panel are respectively arranged with guide roller; Panel is provided with projection screen, and projection screen one end is provided with pulling rope, and the pulling rope other end is connected with the projection screen other end after walking around panel guide roller up and down successively again; The panel both sides are provided with bracing frame, and the bracing frame lower end penetrates from the stop sleeve upper end and is slidingly connected with it.
2. a kind of multipurpose blackboard according to claim 1 is characterized in that the projection screen size matches with panel.
3. a kind of multipurpose blackboard according to claim 1 is characterized in that stop sleeve is provided with the rocking bar positioner, and the stop sleeve lower end is provided with base, and the base below is provided with universal wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120559205 CN202428924U (en) | 2011-12-29 | 2011-12-29 | Multipurpose blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120559205 CN202428924U (en) | 2011-12-29 | 2011-12-29 | Multipurpose blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202428924U true CN202428924U (en) | 2012-09-12 |
Family
ID=46778395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120559205 Expired - Fee Related CN202428924U (en) | 2011-12-29 | 2011-12-29 | Multipurpose blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202428924U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105329026A (en) * | 2015-11-30 | 2016-02-17 | 沈晶晶 | Multifunctional teaching aid |
| CN105365457A (en) * | 2015-11-30 | 2016-03-02 | 沈晶晶 | Multifunctional blackboard |
| CN106527034A (en) * | 2016-12-19 | 2017-03-22 | 李业清 | Adjustable folding mobile film projection screen |
| CN106597795A (en) * | 2016-12-19 | 2017-04-26 | 李业清 | Windproof and dustproof winding drum screen capable of realizing rising and falling adjustment |
-
2011
- 2011-12-29 CN CN 201120559205 patent/CN202428924U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105329026A (en) * | 2015-11-30 | 2016-02-17 | 沈晶晶 | Multifunctional teaching aid |
| CN105365457A (en) * | 2015-11-30 | 2016-03-02 | 沈晶晶 | Multifunctional blackboard |
| CN107599684A (en) * | 2015-11-30 | 2018-01-19 | 沈晶晶 | A kind of improved multi-functional blackboard |
| CN105365457B (en) * | 2015-11-30 | 2018-11-16 | 沈晶晶 | A kind of multi-functional blackboard |
| CN106527034A (en) * | 2016-12-19 | 2017-03-22 | 李业清 | Adjustable folding mobile film projection screen |
| CN106597795A (en) * | 2016-12-19 | 2017-04-26 | 李业清 | Windproof and dustproof winding drum screen capable of realizing rising and falling adjustment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C14 | Grant of patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20121229 |
|
| C17 | Cessation of patent right |