CN201853061U - Portable projection screen - Google Patents
Portable projection screen Download PDFInfo
- Publication number
- CN201853061U CN201853061U CN 201020604248 CN201020604248U CN201853061U CN 201853061 U CN201853061 U CN 201853061U CN 201020604248 CN201020604248 CN 201020604248 CN 201020604248 U CN201020604248 U CN 201020604248U CN 201853061 U CN201853061 U CN 201853061U
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- CN
- China
- Prior art keywords
- outer cover
- spool
- cover
- screen
- curtain
- 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 - Lifetime
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- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
The utility model relates to the technical field of video projection equipment, in particular to a portable projection screen. Aiming to the defects in the prior art, the utility model provides a portable projection screen. When the portable projection screen is stretched, the screen is smooth. The portable projection screen comprises an outer cover and a screen, wherein the screen is arranged in the outer cover, the outer cover comprises a first outer cover and a second outer cover, the first outer cover is fit with the second outer cover, two sets of stretching mechanisms which are oppositely arranged are arranged in the outer cover, the two sets of stretching mechanisms are respectively arranged in the first outer cover and the second outer cover, and the two sets of stretching mechanisms are connected through the screen. The two sets of stretching mechanisms are oppositely unfolded at uniform speed, so that the smoothness of the screen can be ensured, and the stress is uniform.
Description
Technical field
The utility model relates to the video projection equipment technical field, is specifically related to a kind of portable translucent screen.
Background technology
Projection screen is widely used in the industries such as advertisement, teaching, propaganda, literature and art, cooperates projector to carry out various video displaies, for information is propagated the very big effect of having played.
In general, comparatively common projection screen divides two big classes: a big class is an electric projection screen, and this screen relies on electronic expansion and regains Screen Cloth; Another big class is to pull screen, and this screen relies on back-moving spring power rollback Screen Cloth, also has some not too common other forms of screens certainly, as the ground-pulling type screen, and stent-type screen, portable screen, tables' formula screen or the like.
In all above-mentioned various screens, it is simple in structure because of it to pull screen, and cost is low, easy to use and reliable, looked at by the users parent, and is the most common on market, according to statistics, pulls the ratio that screen occupies at present and surpass 80% on market.Be widely used though pull screen, but still have some defectives.
At present, the structure of portable translucent screen is that spool is arranged in the side outer cover, and an end of projection screen is wrapped on the spool, and torsion spring is installed in the spool; The other end of projection screen clings the aluminium edge strip with double faced adhesive tape, and the aluminium edge strip is stuck in the draw-in groove of opposite side outer cover during installation.During use, open curtain by there being one of spool to bring in: the torsion of the torsion spring in the spool is used for straining projection screen, leans on the torsion balance of anchorage force, extension spring and the torsion spring of pole when projection screen is opened, and makes curtain stay open state; An end of aluminium edge strip keeps motionless in addition, occurs discontinuity equalization easily, and the uneven phenomenon of curtain causes using inconvenience.Use when finishing, curtain is back drawn in the rolling-in curtain by torsion spring torsion.
Summary of the invention
At prior art existing problems, the smooth portable translucent screen of curtain when the utility model provides a kind of the stretching.
A kind of portable translucent screen, comprise outer cover and curtain, curtain is arranged in the outer cover, described outer cover comprises first outer cover and second outer cover, first outer cover and second outer cover coincide, and are provided with two cover drawing mechanisms in the described outer cover, and two cover drawing mechanisms are oppositely arranged, two cover drawing mechanisms are arranged at respectively in first outer cover and second outer cover, connect by curtain between the drawing mechanism.
Wherein, described first stretching device comprises first spool and left-handed torsion spring, and left-handed torsion spring is arranged at the first spool center, and second stretching device comprises second spool and dextrorotation torsion spring, and the dextrorotation torsion spring is arranged at the second spool center.
Wherein, be provided with the spool seat in the outer cover, first spool and second spool are fixedly set on the spool seat.
Wherein, be provided with supporting mechanism between first spool and second spool, supporting mechanism is arranged at the curtain below, and supporting mechanism one end is fixedlyed connected with first outer cover, and the other end is fixedlyed connected with second outer cover.
Wherein, described supporting mechanism comprises first support, second support and elastic component, first support and second support are crisscross arranged, first support, one end is connected with the upper end of first outer cover, the other end is connected with elastic component, second support, one end is connected with the bottom of first outer cover, and the other end is connected with elastic component, and elastic component is fixedlyed connected with second outer cover.
Wherein, described elastic component is extension spring.
Wherein, also comprise upper cover plate and lower cover, upper cover plate is connected with the second outer cover upper end with first outer cover, and lower cover is connected with the second outer cover bottom with first outer cover.
Compared with prior art, advantage of the present utility model is as follows: a kind of portable translucent screen, comprise outer cover and curtain, curtain is arranged in the outer cover, and described outer cover comprises first outer cover and second outer cover, and first outer cover and second outer cover coincide, be provided with two cover drawing mechanisms in the described outer cover, two cover drawing mechanisms are oppositely arranged, and two cover drawing mechanisms are arranged at respectively in first outer cover and second outer cover, connect by curtain between the drawing mechanism.Two cover drawing mechanisms launch at the uniform velocity relatively, can guarantee that curtain is smooth, and are stressed even.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model user mode figure.
Fig. 3 is the constitutional diagram of the utility model when not using.
Description of reference numerals is as follows:
1-first outer cover, 2-second outer cover, 3-first spool, 4-second spool, the left-handed torsion spring of 5-, 6-dextrorotation torsion spring, 7-spool seat, 8-first support, 9-second support, 10-extension spring, 11-upper cover plate, 12-lower cover, 13-curtain.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done detailed description.
Wherein, described first stretching device comprises first spool 3 and left-handed torsion spring 5, and left-handed torsion spring 5 is arranged at first spool, 3 centers, and second stretching device comprises second spool 4 and dextrorotation torsion spring 6, and dextrorotation torsion spring 6 is arranged at second spool, 4 centers.
Wherein, being provided with spool seat 7, the first spools 3 and second spool 4 in the outer cover is fixedly set on the spool seat 7.Spool is fixed on the spool seat 7, is convenient to curtain 13 and stretches.
Wherein, be provided with supporting mechanism between first spool 3 and second spool 4, supporting mechanism is arranged at curtain 13 belows, and supporting mechanism one end is fixedlyed connected with first outer cover 1, and the other end is fixedlyed connected with second outer cover 2.The auxiliary curtain 13 of supporting mechanism stretches, and can increase the flatness of curtain 13.
Wherein, described supporting mechanism comprises first support 8, second support 9 and the elastic component, first support 8 and second support 9 are crisscross arranged, first support, 8 one ends are connected with the upper end of first outer cover 1, the other end is connected with elastic component, second support, 9 one ends are connected with the bottom of first outer cover 1, and the other end is connected with elastic component, and elastic component is fixedlyed connected with second outer cover 2.
Wherein, described elastic component is extension spring 10.
Wherein, also comprise upper cover plate 11 and lower cover 12, upper cover plate 11 is connected with second outer cover, 2 upper ends with first outer cover 1, and lower cover 12 is connected with second outer cover, 2 bottoms with first outer cover 1.
During use, open upper cover plate 11 and lower cover 12, curtain 13 is wound on first spool 3 and second spool 4, first outer cover 1 and second outer cover, 2 relative directions are launched, first support 8 and second support 9 stretch and draw back extension spring 10, increase the flatness of curtain 13, after finishing using, rotate left-handed torsion spring 5 and dextrorotation torsion spring 6, with curtain 13 rollbacks, first outer cover 1 and second outer cover 2 are coincide, cover upper cover plate 11 and lower cover 12.
Wherein, described first stretching device comprises first spool 3 and left-handed torsion spring 5, and left-handed torsion spring 5 is arranged at first spool, 3 centers, and second stretching device comprises second spool 4 and dextrorotation torsion spring 6, and dextrorotation torsion spring 6 is arranged at second spool, 4 centers.
Wherein, being provided with spool seat 7, the first spools 3 and second spool 4 in the outer cover is fixedly set on the spool seat 7.
Wherein, also comprise upper cover plate 11 and lower cover 12, upper cover plate 11 is connected with second outer cover, 2 upper ends with first outer cover 1, and lower cover 12 is connected with second outer cover, 2 bottoms with first outer cover 1.
During use, open upper cover plate 11 and lower cover 12, curtain 13 is wound on first spool 3 and second spool 4, first outer cover 1 and second outer cover, 2 relative directions are launched, after finishing using, rotate left-handed torsion spring 5 and dextrorotation torsion spring 6, with curtain 13 rollbacks, first outer cover 1 and second outer cover 2 are coincide, cover upper cover plate 11 and lower cover 12.
Above content only is preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (7)
1. portable translucent screen, comprise outer cover and curtain, curtain is arranged in the outer cover, it is characterized in that: described outer cover comprises first outer cover and second outer cover, first outer cover and second outer cover coincide, and are provided with two cover drawing mechanisms in the described outer cover, and two cover drawing mechanisms are oppositely arranged, two cover drawing mechanisms are arranged at respectively in first outer cover and second outer cover, connect by curtain between the drawing mechanism.
2. a kind of portable translucent screen as claimed in claim 1, it is characterized in that: described first stretching device comprises first spool and left-handed torsion spring, left-handed torsion spring is arranged at the first spool center, and second stretching device comprises second spool and dextrorotation torsion spring, and the dextrorotation torsion spring is arranged at the second spool center.
3. a kind of portable translucent screen as claimed in claim 2 is characterized in that: be provided with the spool seat in the outer cover, first spool and second spool are fixedly set on the spool seat.
4. as claim 1 or 3 described a kind of portable translucent screens, it is characterized in that: be provided with supporting mechanism between first spool and second spool, supporting mechanism is arranged at the curtain below, and supporting mechanism one end is fixedlyed connected with first outer cover, and the other end is fixedlyed connected with second outer cover.
5. a kind of portable translucent screen as claimed in claim 4, it is characterized in that: described supporting mechanism comprises first support, second support and elastic component, first support and second support are crisscross arranged, first support, one end is connected with the upper end of first outer cover, the other end is connected with elastic component, second support, one end is connected with the bottom of first outer cover, and the other end is connected with elastic component, and elastic component is fixedlyed connected with second outer cover.
6. a kind of portable translucent screen as claimed in claim 5, it is characterized in that: described elastic component is extension spring.
7. a kind of portable translucent screen as claimed in claim 6 is characterized in that: also comprise upper cover plate and lower cover, upper cover plate is connected with the second outer cover upper end with the first outer cover upper end, and lower cover is connected with the second outer cover bottom with the first outer cover bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020604248 CN201853061U (en) | 2010-11-12 | 2010-11-12 | Portable projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020604248 CN201853061U (en) | 2010-11-12 | 2010-11-12 | Portable projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201853061U true CN201853061U (en) | 2011-06-01 |
Family
ID=44095448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020604248 Expired - Lifetime CN201853061U (en) | 2010-11-12 | 2010-11-12 | Portable projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201853061U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105007441A (en) * | 2015-08-30 | 2015-10-28 | 于卫华 | Shoulder hanging portable WiFi play projector |
| CN109656088A (en) * | 2019-01-31 | 2019-04-19 | 东莞市美之尊电子科技有限公司 | A kind of projection cloth storage device |
| CN114185241A (en) * | 2022-02-17 | 2022-03-15 | 四川楠水农牧科技有限公司 | Agricultural farming propaganda is with portable data projection display device |
-
2010
- 2010-11-12 CN CN 201020604248 patent/CN201853061U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105007441A (en) * | 2015-08-30 | 2015-10-28 | 于卫华 | Shoulder hanging portable WiFi play projector |
| CN109656088A (en) * | 2019-01-31 | 2019-04-19 | 东莞市美之尊电子科技有限公司 | A kind of projection cloth storage device |
| CN114185241A (en) * | 2022-02-17 | 2022-03-15 | 四川楠水农牧科技有限公司 | Agricultural farming propaganda is with portable data projection display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110601 |