CN204241826U - Luffing framework projection screen - Google Patents
Luffing framework projection screen Download PDFInfo
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- CN204241826U CN204241826U CN201420760528.4U CN201420760528U CN204241826U CN 204241826 U CN204241826 U CN 204241826U CN 201420760528 U CN201420760528 U CN 201420760528U CN 204241826 U CN204241826 U CN 204241826U
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- frame
- framework
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- luffing
- projection screen
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Abstract
A kind of luffing projection screen of the utility model, it comprises curtain and spool, is characterized in: also comprise framework and bearing, described framework by two fixed length frames and two flexible frames successively alternately symmetry be connected and form; At the back side of framework, the two ends of fixed length frame are connected bearing respectively, and spool to be placed between bearing that fixed length frame two ends arrange and to be connected; Curtain is placed between framework and spool, and the both sides of curtain are connected with the spool be connected on fixed length frame respectively, and two groups of magnetic stripes are placed in the other both sides of curtain respectively, be connected between the flexible frame of framework and curtain.Use procedure is: when watching the video file different from projection screen breadth used, and adjustment projection screen breadth, is first adjusted to consistent with fixed length frame size by video file, then adjusts the book size in another direction by flexible frame.
Description
Technical field
The utility model relates to projection screen, is a kind of luffing framework projection screen.
Background technology
Projection screen is used in instrument film, office, home theater and convention occasion being used for showing image, video file.
The video file of prior art is according to length and width score 1.78:1(16:9), 1.85:1, 2.35:1(21:9), 2.6:1 different breadths, the user of most viewing video file only uses a kind of projection screen of breadth usually, when watching the video file different from projection screen breadth used, need to make the equidirectional measure-alike of video file direction size and projection screen used, black surround or image cutting is there will be beyond the image boundary in another direction of projection screen, although the video file different from projection screen breadth used can be watched, but the black surround on projection screen or image cutting can disturb viewing video file.Also have and adopt cropping panel slip shield portions curtain, realize the change of non-shield portions curtain Aspect Ratio, corresponding different Aspect Ratio projection image, eliminate black surround or image cutting that general fixed frame curtain shows, but shield portions is still present within the framework of projection screen, even if the tolerance of (full shadow tone chamber because of projector luminescence also belong to low light environment) human eye still can accurate recognition image boundary and framework border under low light environment, also can the existence of identification cropping panel, affect viewing effect.
Utility model content
Technical problem to be solved in the utility model is: the shortcoming overcoming prior art, a kind of luffing framework projection screen is provided, curtain folding and unfolding is driven by telescopic slide frame, the projection screen size in an adjustment direction, change projection screen Aspect Ratio, projection screen framework and image boundary are accurately agreed with, for the image watching multiple different the ratio of width to height provides a perfect imaging region, realize black surround or the image cutting of thoroughly eliminating image appearance, obtain best viewing effect.
The scheme of the utility model technical solution problem is: a kind of luffing framework projection screen, and it comprises curtain and spool, it is characterized in that: also comprise framework and bearing, described framework by two fixed length frames and two flexible frames successively alternately symmetry be connected and form; At the back side of framework, the two ends of fixed length frame are connected bearing respectively, and spool to be placed between bearing that fixed length frame two ends arrange and to be connected; Curtain is placed between framework and spool, and the both sides of curtain are connected with the spool be connected on fixed length frame respectively, and the two pairs of magnetic stripes are placed in the other both sides of curtain respectively, be connected between the flexible frame of framework and curtain.
The structure of described flexible frame is: it comprises fixed frame, telescopic frame and luffing pull bar, described fixed frame is the inside grooved of opening, telescopic frame is rectangular tube, two telescopic frames are placed in the two ends of fixed frame respectively, termination to be stretched in fixed frame and is slidably connected, the other end of every root telescopic frame is connected with the termination of a fixed length frame respectively, two luffing pull bars are built in two ends in fixed frame respectively, one end and the fixed frame of each luffing pull bar are connected, the other end and telescopic frame are connected, magnetic stripe to be placed in respectively on fixed frame and telescopic frame with curtain correspondence position and to be connected.
Also arrange anticreep slide block in described fixed frame, telescopic frame also arranges anticreep chute () telescopic frame corresponding with fixed frame slide block outward and stretches in fixed frame, and anticreep slide block and anticreep chute are slidably connected.
Described magnetic stripe is the magnetic patch that several are arranged successively.
The use procedure of the utility model luffing framework projection screen is: when watching the video file different from projection screen breadth used, first video file is adjusted to consistent with fixed length frame size, then luffing pull bar is started, when luffing pull bar drives flexible frame and spool shift-reduce breadth, spool furls curtain simultaneously, until projection screen breadth is reduced to framework to luffing pull bar and image boundary accurately agrees with, spool stops retracting curtain; During the video file that viewing is identical with projection screen breadth used again, start luffing pull bar, luffing pull bar drives flexible frame and spool to move increase breadth, spool discharges curtain simultaneously, until breadth is increased to projection screen framework to luffing pull bar and image boundary accurately agrees with, spool stops release curtain.
The beneficial effect of the utility model luffing framework projection screen is: change length, simultaneously spool by the moving telescopic of flexible frame and curtain is rolled up to the synchronization action put, can while projection screen used meets different breadth video file, the framework of projection screen used and image boundary are accurately agreed with, both the attractive in appearance of projection screen used viewing video file had been met, avoid again the black surround on projection screen or image cutting edge can disturb viewing video file, obtain best viewing effect.There is the advantage that structure is simple, with low cost.
Accompanying drawing explanation
Fig. 1 is the schematic front view of the utility model luffing framework projection screen;
Fig. 2 is the schematic top plan view of Fig. 1;
Fig. 3 is that schematic diagram is looked on a left side of Fig. 1;
Fig. 4 is the schematic front view after Fig. 1 adjusts breadth;
Fig. 5 is the schematic front view of embodiment 2;
Fig. 6 is the schematic top plan view of Fig. 5;
Fig. 7 is that schematic diagram is looked on a left side of Fig. 5;
Fig. 8 is the schematic front view after Fig. 5 adjusts breadth.
In figure: 1 fixed length frame, 2 telescopic frames, 3 luffing pull bars, 4 fixed frames, 5 curtains, 6 bearings, 7 spools, 8 magnetic stripes.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
With reference to Fig. 1 ~ Fig. 4, embodiment 1, a kind of luffing framework of the present embodiment projection screen, it comprises curtain 5, spool 7, framework and bearing 6, described framework by left and right two fixed length frames 1 and upper and lower two flexible frames successively alternately symmetry be connected and form; At the back side of framework, the two ends of fixed length frame 1 are connected bearing 6 respectively, and spool 7 to be placed between bearing 6 that fixed length frame 1 two ends arrange and to be connected; Curtain 5 is placed between framework and spool 7, and the both sides of curtain 5 are connected with the spool 7 be connected on fixed length frame 1 respectively, and the two pairs of magnetic stripes 8 are placed in the other both sides of curtain 5 respectively, be connected between the flexible frame of framework and curtain 5.The structure of described flexible frame is: it comprises fixed frame 4, telescopic frame 2 and luffing pull bar 3, the grooved that described fixed frame 4 is inside in opening, in fixed frame 4, anticreep slide block is also set, telescopic frame 2 is rectangular tube, telescopic frame 2 is outer also arranges the anticreep chute corresponding with fixed frame 4 slide block, two telescopic frames 2 are placed in the two ends of fixed frame 4 respectively, termination is stretched in fixed frame 4, anticreep slide block and anticreep chute are slidably connected, the other end of every root telescopic frame 2 is connected with the termination of a fixed length frame 1 respectively, two luffing pull bars 3 are built in two ends in fixed frame 4 respectively, one end and the fixed frame 4 of each luffing pull bar 3 are connected, the other end and telescopic frame 2 are connected, magnetic stripe 8 to be placed in respectively on fixed frame 4 and telescopic frame 2 with curtain 5 correspondence position and to be connected.Described magnetic stripe 8 is the magnetic patch that several are arranged successively.The present embodiment adopts prior art manufacture, and described spool 7 and luffing pull bar 3 are the commercially available prod of prior art.
The use procedure of the present embodiment is: when watching the video file different from projection screen breadth used, first by video file height control to fixed length frame 1 consistent size, then luffing pull bar 3 is started, when luffing pull bar 3 shift-reduce breadth length, drive spool 7 to furl curtain 5 simultaneously, until luffing pull bar 3 drives, curtain 5 furls by spool 7, projection screen breadth is reduced to framework and image boundary accurately agrees with, and spool 7 stops retracting curtain 5; During the video file that viewing is identical with projection screen breadth used again, start luffing pull bar 3, luffing pull bar 3 moves increases breadth length, drive spool 7 to discharge curtain 5 simultaneously, until breadth length is increased to framework to luffing pull bar 3 and image boundary accurately agrees with, spool 7 stops release curtain 5.
With reference to Fig. 5 ~ Fig. 8, embodiment 2, the present embodiment is substantially identical with the course of work with the structure of embodiment 1, and difference is: fixed length frame 1 is upper and lower frame, flexible frame is left and right frame, during adjustment projection screen breadth, the book size in contraction and release altitude direction.
Embodiment 3, the present embodiment is substantially identical with the course of work with the structure of embodiment 2, difference is: flexible frame is different, the structure of described flexible frame is: it comprises fixed frame 4, telescopic frame 2 and luffing pull bar 3, the grooved that described fixed frame 4 is inside in opening, in fixed frame 4, anticreep slide block is also set, telescopic frame 2 is rectangular tube, telescopic frame 2 is outer also arranges the anticreep chute corresponding with fixed frame 4 slide block, a telescopic frame 2 is placed in one end of fixed frame 4, termination is stretched in fixed frame 4, anticreep slide block and anticreep chute are slidably connected, the termination of the other end of telescopic frame 2 and a fixed length frame 1 is connected, the other end of fixed frame 2 and the termination of another root fixed length frame 1 are connected, a luffing pull bar 3 is built in fixed frame 4, one end and the fixed frame 4 of luffing pull bar 3 are connected, the other end and telescopic frame 2 are connected.
Claims (4)
1. a luffing framework projection screen, it comprises curtain and spool, it is characterized in that: also comprise framework and bearing, described framework by two fixed length frames and two flexible frames successively alternately symmetry be connected and form; At the back side of framework, the two ends of fixed length frame are connected bearing respectively, and spool to be placed between bearing that fixed length frame two ends arrange and to be connected; Curtain is placed between framework and spool, and the both sides of curtain are connected with the spool be connected on fixed length frame respectively, and the two pairs of magnetic stripes are placed in the other both sides of curtain respectively, be connected between the flexible frame of framework and curtain.
2. luffing framework projection screen as claimed in claim 1, it is characterized in that: described flexible frame comprises fixed frame, telescopic frame and luffing pull bar, described fixed frame is the inside grooved of opening, telescopic frame is rectangular tube, two telescopic frames are placed in the two ends of fixed frame respectively, termination to be stretched in fixed frame and is slidably connected, the other end of every root telescopic frame is connected with the termination of a fixed length frame respectively, two luffing pull bars are built in two ends in fixed frame respectively, one end and the fixed frame of each luffing pull bar are connected, the other end and telescopic frame are connected, magnetic stripe to be placed in respectively on fixed frame and telescopic frame with curtain correspondence position and to be connected.
3. luffing framework projection screen as claimed in claim 2, is characterized in that: also arrange anticreep slide block in described fixed frame, and telescopic frame also arranges the anticreep chute corresponding with fixed frame slide block outward, and telescopic frame stretches in fixed frame, and anticreep slide block and anticreep chute are slidably connected.
4. luffing framework projection screen as claimed in claim 1, is characterized in that: described magnetic stripe is the magnetic patch that several are arranged successively.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420760528.4U CN204241826U (en) | 2014-12-08 | 2014-12-08 | Luffing framework projection screen |
| PCT/CN2015/096332 WO2016091118A1 (en) | 2014-12-08 | 2015-12-03 | Variable-amplitude frame projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420760528.4U CN204241826U (en) | 2014-12-08 | 2014-12-08 | Luffing framework projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204241826U true CN204241826U (en) | 2015-04-01 |
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ID=52771297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420760528.4U Active CN204241826U (en) | 2014-12-08 | 2014-12-08 | Luffing framework projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204241826U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016091118A1 (en) * | 2014-12-08 | 2016-06-16 | 窦志刚 | Variable-amplitude frame projection screen |
| CN110572629A (en) * | 2019-10-08 | 2019-12-13 | 江苏舜合物联网科技有限公司 | Control method of curled hidden laser television all-in-one machine |
| CN110946418A (en) * | 2019-12-17 | 2020-04-03 | 成都极米科技股份有限公司 | Laser television cabinet and projection equipment |
-
2014
- 2014-12-08 CN CN201420760528.4U patent/CN204241826U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016091118A1 (en) * | 2014-12-08 | 2016-06-16 | 窦志刚 | Variable-amplitude frame projection screen |
| CN110572629A (en) * | 2019-10-08 | 2019-12-13 | 江苏舜合物联网科技有限公司 | Control method of curled hidden laser television all-in-one machine |
| CN110572629B (en) * | 2019-10-08 | 2021-09-07 | 江苏舜合物联网科技有限公司 | Control method of curled hidden laser television all-in-one machine |
| CN110946418A (en) * | 2019-12-17 | 2020-04-03 | 成都极米科技股份有限公司 | Laser television cabinet and projection equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |