CN201281799Y - Projection screen - Google Patents
Projection screen Download PDFInfo
- Publication number
- CN201281799Y CN201281799Y CN 200820213005 CN200820213005U CN201281799Y CN 201281799 Y CN201281799 Y CN 201281799Y CN 200820213005 CN200820213005 CN 200820213005 CN 200820213005 U CN200820213005 U CN 200820213005U CN 201281799 Y CN201281799 Y CN 201281799Y
- Authority
- CN
- China
- Prior art keywords
- projection screen
- wire winding
- backguy
- winding pole
- pull bar
- 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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- Overhead Projectors And Projection Screens (AREA)
Abstract
The utility model discloses a projection screen, in particular to a suspended-type or floor-type projection screen which is used for opening and flattening the projection screen, and comprises a casing, a reel arranged in the casing, a projection screen wound around a reel, wherein, a pull rod is fixedly installed at a free end of the projection screen; the two ends of the real are respectively connected with one end of tightening wire, the tightening wires are inserted on the two sides of the projection screen; and the other ends of the tightening wires are connected at the two ends of the pull rod. In the utility model, tightening wires are arranged on the two sides of the projection screen; when in use, the projection screen is opened toward the left side and the right side through the tightening wires, so that the projection screen is flattened, the projection is favorable, and the projection effect is clearer, furthermore, clamping wire ends are installed on the pull rod, the degree of tightness of the tightening wire can be adjusted through the clamping wire ends, so that the use thereof is more flexible, and the effect is better.
Description
Technical field
The utility model discloses a kind of projection screen, and particularly a kind of suspension type or console mode projection screen of being used for struts projection screen the projection screen of flattening.
Background technology
Along with the raising of people's living standard, the application of projection screen in people more and more widely has the trend that replaces conventional television greatly.Projection screen of the prior art all is that spool is installed in the enclosure, projection screen one end is wrapped on the spool, be installed with pull bar on the other end, during use, projection screen pulled out from shell by pull bar, in the present projection screen, when projection screen was strutted, the projection screen centre position was without any supporter supports, and the projection screen centre position concaves easily, curved, thus the result of use of projection screen influenced.
Summary of the invention
Concave easily at the above-mentioned projection screen of the prior art centre position of mentioning, curved, influence shortcomings such as result of use, the utility model provides a kind of new projection screen structure, and it interts in the projection screen both sides and is provided with backguy, backguy one end is fixed on the spool, the other end is fixedly connected on the pull bar, during use, by backguy projection screen is drawn back both sides to the left and right, projection screen is flattened, help projection.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of projection screen, comprise shell, be arranged on the spool in the shell and be wrapped in projection screen on the spool, be installed with pull bar on the projection screen free end, the spool two ends are fixedly connected with an end of backguy respectively, backguy interts in the projection screen both sides, and the other end of backguy is connected to the pull bar two ends.
The technical scheme that its technical matters that solves the utility model adopts further comprises:
Described pull bar two ends are respectively equipped with card the end of a thread, described card the end of a thread comprises fixed cover, wire winding pole, adjusting head, have the coiling hole on the wire winding pole, backguy is inserted in the coiling hole, and fixed cover is provided with stopper slot, is fitted with spacer pin on the wire winding pole, the wire winding pole tail end is set with spring, spring one end props up the wire winding pole tail end, and the other end props up fixed cover, and the wire winding pole front end is equipped with the adjusting head.
Have pilot hole on the described fixed cover, card the end of a thread is installed in the pull bar by pilot hole.
Described projection screen both sides are provided with through wires hole.
Described through wires hole is provided with more than one.
The beneficial effects of the utility model are: the utility model is respectively equipped with backguy in the projection screen both sides, in use, by drawing back projection screen in both sides to the left and right by backguy, projection screen is flattened, and helps projection, makes drop shadow effect more clear.In addition, card the end of a thread is installed on the pull bar, can makes its use more flexible, better effects if by the degree of tightness of card the end of a thread adjusting backguy.
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Description of drawings
Fig. 1 is the utility model one-piece construction synoptic diagram.
Fig. 2 is the utility model perspective view.
Fig. 3 is the utility model card the end of a thread structural representation.
Among the figure, the 1-shell, the 2-projection screen, the 3-backguy, the 4-through wires hole, the 5-pull bar, 6-card the end of a thread, 61-regulates head, the 62-hole that winds the line, 63-limited block, 64-spacer pin, 65-stopper slot, 66-fixed cover, 67-pilot hole, 68-spring, 69-wire winding pole.
Embodiment
Present embodiment is the utility model preferred implementation, and other all its principles are identical with present embodiment or approximate with basic structure, all within the utility model protection domain.
Please referring to accompanying drawing 1, accompanying drawing 2, the utility model mainly comprises shell 1, spool (not drawing among the figure), projection screen 2, and spool is installed in the shell 1, and projection screen 2 one ends are wrapped on the spool, and said structure is identical with projection screen structure of the prior art.In the present embodiment, projection screen 2 one ends are wrapped on the spool, and projection screen 2 other ends are exposed to shell 1 outside, and projection screen 2 is exposed on one end of shell 1 outside and is installed with pull bar 5.Two ends, the spool left and right sides have the through hole that threading is used, backguy 3 interts in through hole, be fixedly connected on the spool by through hole, in the present embodiment, two ends, pull bar 5 left and right sides are separately installed with card the end of a thread 6, backguy 3 is fixedly mounted on card the end of a thread 6, centre position, projection screen 2 left and right sides is provided with a plurality of through wires holes 4, backguy 3 interts in through wires hole 4, in the present embodiment, through wires hole 4 is supported by a slice cloth or other flexible materials, and two ends are fixedly connected on respectively on the projection screen 2, through wires hole 4 that can be used for threading of middle formation.When projection screen 2 strutted, projection screen 2 was pullled in backguy 3 both sides to the left and right, and projection screen 2 is flattened, and helped projection, made drop shadow effect clear, and when projection screen 2 was packed up, backguy 3 was along with projection screen 2 is wrapped on the spool.
When projection screen 2 is strutted, backguy 3 pull better effects if, in the present embodiment, card the end of a thread 6 adopts special constructions.Please referring to accompanying drawing 3, in the present embodiment, be columniform wire winding pole 69 in the middle of card the end of a thread 6, wire winding pole 69 tail ends are fixed with a catch, and wire winding pole 69 front ends are equipped with regulates 61, and adjusting 61 is installed in wire winding pole 69 by screw thread.Be set with fixed cover 66 on the wire winding pole 69, fixed cover 66 is provided with a plurality of limited blocks 63, be formed with stopper slot 65 between the limited block 63, be fitted with spacer pin 64 on the wire winding pole 69, spacer pin 64 is arranged in the stopper slot 65, be set with spring 68 between the catch of wire winding pole 69 tail ends and the fixed cover 66, spring 68 1 ends prop up fixed cover 66, and the other end props up the catch of wire winding pole 69 tail ends.Have pilot hole 67 on the fixed cover 66, be fixedly mounted on the pull bar 5 by pilot hole 67.During use, outwards pulling regulates 61, and spacer pin 64 is deviate from stopper slot 65, rotate to regulate 61, backguy 3 is wrapped on the wire winding pole 69, backguy 3 tensions, after adjusting is finished, spacer pin 64 is rebounded in the stopper slot 65, it can not deviate from automatically by the elastic force of spring 68.
In present embodiment and the accompanying drawing, be example with the suspension type projection screen, when specifically implementing, the structure in the present embodiment also can be used among the console mode projection screen.
Claims (5)
1, a kind of projection screen, comprise shell, be arranged on the spool in the shell and be wrapped in projection screen on the spool, it is characterized in that: be installed with pull bar on the described projection screen free end, the spool two ends are fixedly connected with an end of backguy respectively, backguy interts in the projection screen both sides, and the other end of backguy is connected to the pull bar two ends.
2, projection screen according to claim 1, it is characterized in that: described pull bar two ends are respectively equipped with card the end of a thread, described card the end of a thread comprises fixed cover, wire winding pole, adjusting head, has the coiling hole on the wire winding pole, and backguy is inserted in the coiling hole, fixed cover is provided with stopper slot, be fitted with spacer pin on the wire winding pole, the wire winding pole tail end is set with spring, and spring one end props up the wire winding pole tail end, the other end props up fixed cover, and the wire winding pole front end is equipped with the adjusting head.
3, projection screen according to claim 2 is characterized in that: have pilot hole on the described fixed cover, card the end of a thread is installed in the pull bar by pilot hole.
4, according to claim 1 or 2 or 3 described projection screens, it is characterized in that: described projection screen both sides are provided with through wires hole.
5, projection screen according to claim 4 is characterized in that: described through wires hole is provided with more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820213005 CN201281799Y (en) | 2008-10-24 | 2008-10-24 | Projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820213005 CN201281799Y (en) | 2008-10-24 | 2008-10-24 | Projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201281799Y true CN201281799Y (en) | 2009-07-29 |
Family
ID=40928670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820213005 Expired - Lifetime CN201281799Y (en) | 2008-10-24 | 2008-10-24 | Projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201281799Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974724A (en) * | 2016-07-04 | 2016-09-28 | 张家港宝视特影视器材有限公司 | Projection arc curtain tensioning device |
-
2008
- 2008-10-24 CN CN 200820213005 patent/CN201281799Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974724A (en) * | 2016-07-04 | 2016-09-28 | 张家港宝视特影视器材有限公司 | Projection arc curtain tensioning device |
| CN105974724B (en) * | 2016-07-04 | 2018-04-06 | 张家港宝视特影视器材有限公司 | Project arc curtain tensioning apparatus |
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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: 20090729 |