CN101526729A - Arc-shaped projection screen - Google Patents
Arc-shaped projection screen Download PDFInfo
- Publication number
- CN101526729A CN101526729A CN 200910020726 CN200910020726A CN101526729A CN 101526729 A CN101526729 A CN 101526729A CN 200910020726 CN200910020726 CN 200910020726 CN 200910020726 A CN200910020726 A CN 200910020726A CN 101526729 A CN101526729 A CN 101526729A
- Authority
- CN
- China
- Prior art keywords
- arc
- projection screen
- shell
- shaped projection
- housing
- 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.)
- Pending
Links
Images
Landscapes
- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
The invention discloses an accessory used for projection, in particular to an arc-shaped projection screen. The arc-shaped projection screen comprises a shell, rotating shafts positioned in the shell and screens wound on the rotating shaft, and is characterized in that the shell is divided into three sections which are not connected and positioned on the same horizontal line, wherein included angles between the two sections positioned at two sides and the middle section are equivalent and both inclined inwards; three sections of rotating shafts in the shell are connected by connecting rods; and edges of every two jointed screens in three screens are stuck by nylon. The invention has simple structure, is convenient to use, effectively improves the phenomenon that a planar protection screen reflects lights easily and is suitable for small-scale projection teaching in classrooms.
Description
(1) technical field
The present invention relates to a kind of annex of showing usefulness, particularly a kind of arc-shaped projection screen.
(2) background technology
Projection screen is one of product of the most normal use in projector's peripheral equipment, and image is amplified demonstration, can be used as the usefulness of demonstration, propaganda, teaching.As the annex of projection arrangement, projection screen is furnished with multiple drawing materials, multiple set-up mode.Abundance the space in, people can install the large-screen that need not pack up, and because reflective effect, screen is set to arc more, and the people who helps each position sees the image on the screen clearly, but general teaching is given lessons, the projection screen of installing is plane deployable and collapsible curtain, a lot of students can't in time see image information clearly because remote location or angle are bad, cause study to start a leak.
(3) summary of the invention
The present invention provides a kind of reflective arc-shaped projection screen that prevents in order to remedy the deficiencies in the prior art.
The present invention is achieved through the following technical solutions:
A kind of arc-shaped projection screen, comprise housing, be positioned at the rotating shaft of housing and be wrapped in curtain in the rotating shaft, it is characterized in that: housing is divided into and is in unconnected three joints on the same horizontal line, and it is identical and all slope inwardly that two joints and middle that wherein are positioned at both sides save angle; The rotating shafts of in the housing three joint connect by connecting rod, have nylon to paste on the edge that three curtains intersect in twos.
In the three joint rotating shafts of the present invention, to save angle identical and slope inwardly for two joints and middle on the limit, the curtain that puts down just can be formed an arc, and it is continuous owing to putting down back three curtains, in the crossing edge installation nylon stickup of curtain in twos, curtain is connected, so just formed a monoblock arc curtain, reached and prevent reflective purpose; In the time curtain will being packed up, as long as nylon is pasted separately.
Three rotating shafts of the present invention connect by connecting rod, so only need the rotating shaft in centre is driven, and just can make two rotating shaft interlocks in addition, can not make the related change of control system because of structural change.
The present invention is simple in structure, and is easy to use, effectively improved the plane projection curtain reflective phenomenon easily takes place, and is applicable to that small-sized projection teaching uses in the classroom.
(4) description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 looks synoptic diagram for master of the present invention.
Fig. 2 is a schematic top plan view of the present invention.
Among the figure, 1 housing, 2 rotating shafts, 3 curtains, 4 connecting rods, 5 nylon are pasted.
(5) embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.This embodiment comprises housing 1, is positioned at the rotating shaft 2 of housing 1 and is wrapped in curtain 3 in the rotating shaft 2, it is characterized in that: housing 1 is divided into and is in unconnected three joints on the same horizontal line, and it is identical and all slope inwardly that two joints and middle that wherein are positioned at both sides save angle; Three joint rotating shafts 2 in the housing 1 connect by connecting rod 4, have nylon to paste 5 on the edge that three curtains 3 intersect in twos.
When using projector, by the rotating shaft 2 in the switch manipulation middle casing 1, connecting rod 4 between the rotating shaft 2 drives 2 one of the rotating shafts on both sides three curtains 3 is slowly put down, after putting down curtain 3, the nylon of 3 on curtain is pasted 5 connect, just formed the whole curtain of an arc, to be used finishing, the nylon of 3 on curtain is pasted 5 open, can master cock be packed up by curtain 3.
Claims (1)
1. arc-shaped projection screen, comprise housing (1), be positioned at the rotating shaft (2) of housing (1) and be wrapped in curtain (3) in the rotating shaft (2), it is characterized in that: housing (1) is divided into and is in unconnected three joints on the same horizontal line, and it is identical and all slope inwardly that two joints and middle that wherein are positioned at both sides save angle; Three joint rotating shafts (2) in the housing (1) connect by connecting rod (4), have nylon to paste (5) on the edge that three curtains (3) intersect in twos.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910020726 CN101526729A (en) | 2009-04-21 | 2009-04-21 | Arc-shaped projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910020726 CN101526729A (en) | 2009-04-21 | 2009-04-21 | Arc-shaped projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101526729A true CN101526729A (en) | 2009-09-09 |
Family
ID=41094647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910020726 Pending CN101526729A (en) | 2009-04-21 | 2009-04-21 | Arc-shaped projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101526729A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713459A (en) * | 2013-12-25 | 2014-04-09 | 周庆芬 | Projection screen capable of being assembled |
| CN105988278A (en) * | 2015-01-28 | 2016-10-05 | 深圳市蓝宝石球显科技有限公司 | Novel inward-projecting type inflatable ball screen |
| CN106842798A (en) * | 2017-02-23 | 2017-06-13 | 成都言行果科技有限公司 | One kind inflation projection screen |
| CN107221219A (en) * | 2017-07-07 | 2017-09-29 | 安徽伟合电子科技有限公司 | A kind of drawing and pulling type curtain type dummy emulation system switch board |
| CN108398848A (en) * | 2018-02-05 | 2018-08-14 | 珠海横琴新区银河信息技术有限公司 | A kind of hidden ceiling projection screen box |
-
2009
- 2009-04-21 CN CN 200910020726 patent/CN101526729A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713459A (en) * | 2013-12-25 | 2014-04-09 | 周庆芬 | Projection screen capable of being assembled |
| CN105988278A (en) * | 2015-01-28 | 2016-10-05 | 深圳市蓝宝石球显科技有限公司 | Novel inward-projecting type inflatable ball screen |
| CN106842798A (en) * | 2017-02-23 | 2017-06-13 | 成都言行果科技有限公司 | One kind inflation projection screen |
| CN107221219A (en) * | 2017-07-07 | 2017-09-29 | 安徽伟合电子科技有限公司 | A kind of drawing and pulling type curtain type dummy emulation system switch board |
| CN108398848A (en) * | 2018-02-05 | 2018-08-14 | 珠海横琴新区银河信息技术有限公司 | A kind of hidden ceiling projection screen box |
| CN108398848B (en) * | 2018-02-05 | 2021-03-30 | 南京溧水高新创业投资管理有限公司 | Hidden ceiling projection curtain box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202486493U (en) | Projection curtain | |
| CN101526729A (en) | Arc-shaped projection screen | |
| CN103514817B (en) | Can the LED display of auto-folder and using method thereof | |
| CN205609131U (en) | Manpower resources information display device | |
| CN104332121B (en) | The advertising device that a kind of rotary screen and large-scale column are combined | |
| CN202677761U (en) | Multi-screen and multi-angle information interaction device | |
| CN210516042U (en) | Public legal service is with propaganda equipment | |
| CN210777401U (en) | Teaching tool for mathematical thinking training | |
| CN208240286U (en) | A kind of moveable exhibition plate | |
| CN204143837U (en) | The advertising device that a kind of rotary screen and large-scale column combine | |
| CN203941674U (en) | A kind of portable 3D exhibiting device | |
| CN208388308U (en) | A kind of national culture data displaying turntable | |
| CN204318357U (en) | A kind of multifunctional curtain with intelligence development science popularization character | |
| CN201419586Y (en) | Multi-media teaching blackboard | |
| CN210006001U (en) | Virtual reality scene demonstration equipment | |
| CN202059501U (en) | Jumbotron physics-gapless display screen | |
| CN201876761U (en) | Foldable display | |
| CN204009332U (en) | Rotary rear-projection display unit and the Combined display equipment being formed by it | |
| CN208284198U (en) | A kind of pedagogy is explained and publicised with detachable displaying device | |
| CN207799934U (en) | A kind of university's work of fine arts displaying device | |
| CN206610577U (en) | A kind of special rotational display screen of multi-media classroom teaching | |
| WO2010083669A1 (en) | Rolling writing board of module-assembled type | |
| CN201346932Y (en) | Novel blackboard | |
| CN209103095U (en) | A kind of animation projection cloth storage device of higher education | |
| CN218631114U (en) | 360-degree three-dimensional virtual-real interactive sand table display device with AR sliding rail screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090909 |