CN202210208U - Adjustable projection screen - Google Patents
Adjustable projection screen Download PDFInfo
- Publication number
- CN202210208U CN202210208U CN2011203546601U CN201120354660U CN202210208U CN 202210208 U CN202210208 U CN 202210208U CN 2011203546601 U CN2011203546601 U CN 2011203546601U CN 201120354660 U CN201120354660 U CN 201120354660U CN 202210208 U CN202210208 U CN 202210208U
- Authority
- CN
- China
- Prior art keywords
- reel
- connecting rod
- projection screen
- spool
- screw
- 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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Abstract
The utility model relates to an adjustable projection screen, and aims to solve the problem that the conventional projection screen can not be horizontally moved. The adjustable projection screen adopts the scheme that a reel is comprised; two reel ends of the reel are sleeved with a connecting rod; the upper end of the connecting rod is connected with a screw-nut mechanism; and separation sheets for limiting the connecting rod are arranged at the two reel ends of the reel. Since the reel is fixed on the screw-nut mechanism, the reel can be conveniently moved along a guide screw; besides, the guide screw is arranged along the width direction of a classroom, so that the reel can be conveniently adjusted to move along a horizontal direction, thereby meeting the viewing requirement of students in different positions. The utility model is simple in structure and convenient to operate, and facilitates popularization and application.
Description
Technical field:
The utility model relates to a kind of projection screen.
Background technology:
Mostly present projection screen is that spool drives the screen curtain and opens or pack up, convenient and swift.In the classroom of school, mostly spool is to be fixed on the blackboard top, and when using, the screen curtain slowly falls and places blackboard the place ahead, rolls when not using, and does not influence the use of blackboard.In the prior art, because spool can only be fixed on blackboard top, for the lyceum that can hold the hundreds of people, often the classroom width is bigger, and the student who is sitting in the both sides, classroom is not easy to see clearly projection screen, is unfavorable for the carrying out of imparting knowledge to students.
The utility model content:
To present projection screen can not the move left and right position drawback, the utility model provides a kind of projection screen of adjustable positions, can address the above problem preferably.
Said purpose realizes through following scheme:
A kind of projection screen of adjustable positions comprises spool, and two axle heads of spool are socketed with connecting rod, and the upper end of connecting rod is connected with screw-nut body.
Said spool axle head is provided with the catch spacing to connecting rod.
The utility model can conveniently be realized spool along guide screw movement through spool is fixed on the screw-nut body, and leading screw is provided with by the classroom Width, can conveniently adjust spool and move in the horizontal direction, thereby satisfy diverse location student's the requirement of viewing and admiring.The utility model is simple in structure, and handled easily is beneficial to and applies.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
Wherein, spool 1, leading screw 2, connecting rod 3, catch 4, nut 5.
Embodiment:
Set forth the utility model in detail preferred embodiment below in conjunction with accompanying drawing.
A kind of projection screen of adjustable positions with reference to Fig. 1, comprises spool 1; Two axle heads of spool 1 are socketed with connecting rod 3; The upper end of connecting rod 3 is connected with screw-nut body, and concrete structure is the upper end attaching nut 5 of connecting rod 3; Through the motion of the mobile realization connecting rod 3 of nut 5 on leading screw 2, and then drive spool 1 realizes that horizontal direction moves.Come off at the spool axle head for fear of connecting rod 3; The utility model is provided with catch 4 at the spool axle head simultaneously, and catch 4 is fixed on the axle head of spool, and connecting rod 3 is placed in one; Connecting rod 3 is socketed on the spool axle head; Like this spool when rotated, connecting rod can be with one of which with rotation, and then carrying out smoothly of guarantee moving.
During use, screen is slowly opened downwards on spool, and projector projects on the screen; When a sideslip moves screen, the control projector together rotates and gets final product.
Above-mentioned embodiment is the protection domain that the exemplary illustration of this patent is not limited it; Those skilled in the art can also carry out the part to it and change; So long as do not exceed the spirit of this patent, all be shown the replacement that is equal to, all within the protection domain of this patent to this patent.
Claims (2)
1. the projection screen of an adjustable positions comprises spool, it is characterized in that, two axle heads of spool are socketed with connecting rod, and the upper end of connecting rod is connected with screw-nut body.
2. the projection screen of adjustable positions according to claim 1 is characterized in that, said spool axle head is provided with the catch spacing to connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203546601U CN202210208U (en) | 2011-09-21 | 2011-09-21 | Adjustable projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203546601U CN202210208U (en) | 2011-09-21 | 2011-09-21 | Adjustable projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202210208U true CN202210208U (en) | 2012-05-02 |
Family
ID=45989752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203546601U Expired - Fee Related CN202210208U (en) | 2011-09-21 | 2011-09-21 | Adjustable projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202210208U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007600A (en) * | 2014-04-25 | 2014-08-27 | 江汉大学 | Projector system |
| CN106226986A (en) * | 2016-09-23 | 2016-12-14 | 刘子琛 | High school student learns to use projection teaching's device |
| CN108331381A (en) * | 2018-01-25 | 2018-07-27 | 江苏省建筑工程集团有限公司 | The multifunctional conference Room |
-
2011
- 2011-09-21 CN CN2011203546601U patent/CN202210208U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007600A (en) * | 2014-04-25 | 2014-08-27 | 江汉大学 | Projector system |
| CN106226986A (en) * | 2016-09-23 | 2016-12-14 | 刘子琛 | High school student learns to use projection teaching's device |
| CN108331381A (en) * | 2018-01-25 | 2018-07-27 | 江苏省建筑工程集团有限公司 | The multifunctional conference Room |
| CN108331381B (en) * | 2018-01-25 | 2020-03-13 | 江苏省建筑工程集团有限公司 | Multifunctional conference hall |
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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: 20120502 Termination date: 20140921 |
|
| EXPY | Termination of patent right or utility model |