CN105372921A - Portable projection screen - Google Patents
Portable projection screen Download PDFInfo
- Publication number
- CN105372921A CN105372921A CN201510935884.4A CN201510935884A CN105372921A CN 105372921 A CN105372921 A CN 105372921A CN 201510935884 A CN201510935884 A CN 201510935884A CN 105372921 A CN105372921 A CN 105372921A
- Authority
- CN
- China
- Prior art keywords
- vertical rod
- projection screen
- rotating shaft
- stand column
- screen
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
The invention discloses a portable projection screen, comprising a projection curtain, a first stand column and a second stand column; one side of the projection curtain is connected to the first stand column and the projection curtain is wound on the first stand column; the second stand column is provided with a groove for fixing the projection curtain; the second stand column is hollowed; the hollowed part of the second stand column can contain the first stand column, on which the projection curtain is wound; a rotation shaft is arranged under the first stand column; the lower end of the rotation shaft is provided with an end cap which is in thread cooperation with one end of the second stand column. The projection screen disclosed by the invention is portable.
Description
Technical field
The present invention relates to projection arrangement field, be specifically related to a kind of portable translucent screen.
Background technology
Projector be a kind of can by the equipment on the curtain of image or VIDEO PROJECTION, can be connected with computing machine VCD, DVD, game machine etc. by different interfaces and to play corresponding vision signal.Projector is widely used in family, office, school and public place of entertainment.
Generally when using projector, projection screen must be had to coordinate with projector.When projecting, first need projection screen to be well placed.Existing projection screen generally is Scroll, usually rolls, and time to be used, spool rotates and put down by screen.And projector needs out of doors sometimes or when needing Emergency use, also need extra mounting bracket to fix spool if install projection screen, this just brings great inconvenience to use.And existing projection screen carries inconvenience.
Summary of the invention
The object of the present invention is to provide a kind of portable translucent screen, this projection screen can use easily out of doors.
For achieving the above object, base case of the present invention is as follows: a kind of portable translucent screen, comprise projection screen, the first vertical rod and the second vertical rod, described projection screen side is connected with the first vertical rod and projection screen can twist in the first vertical rod, described second vertical rod is provided with the groove can fixing projection screen, described second vertical rod is that hollow is arranged, second vertical rod hollow bulb can hold the first vertical rod that volume has projection screen, be provided with rotating shaft below described first vertical rod, described rotating shaft lower end is provided with the end cap that can coordinate with the second vertical rod threaded one end.
Principle of work of the present invention and beneficial effect are: projection screen one end is connected with the first vertical rod, and when this projection screen does not use, projection screen twists in the first vertical rod, and it is little and be convenient for carrying to take up an area space.When needs use projection screen, placed on the ground by end cap, end cap can be played a supporting role to the first vertical rod, compares and directly places more stable on the ground by the first vertical rod.Then pull the projection screen other end, because the first vertical rod is connected with rotating shaft, axis of rotation, is easy to be pulled by projection screen.Second vertical rod is placed on suitable place, then by this end of projection screen and the second vertical rod groove fit, just projection screen can be fixed.Open projector just can project and employ.After finishing using, first the second vertical rod be separated with projection screen, then rotating shaft, projection screen will twist in the first vertical rod.Arrange because the second vertical rod is hollow, have the first vertical rod of projection screen to put into the second vertical rod volume, then end cap is screwed in second vertical rod one end.Such second vertical rod just can play a protective role to projection screen, avoids its covered with dust or damaged.And, the first vertical rod is placed in the second vertical rod, saves space, be convenient for carrying.End cap in first vertical rod and the second vertical rod threaded engagement, structure is simple, designs ingenious, does not need other fixing parts, alleviates overall weight.
Preferred version one: based on the preferred version of scheme, described second vertical rod lower end is provided with bearing, and bearing props up on the ground, the second vertical rod can be made to support more stable.
Preferred version two: the preferably preferred version of, described first vertical rod and projection screen, for removably connecting, can be suitable for the projection screen of different size like this.
Preferred version three: the preferably preferred version of two, described rotating shaft and the first vertical rod, for removably connecting, when rotating shaft damages, are pulled down bad rotating shaft and are then changed a new rotating shaft and just can continue to use, cost-saving.
Accompanying drawing explanation
Fig. 1 is the structural representation of portable translucent screen embodiment of the present invention;
Fig. 2 is the structural representation of portable translucent screen embodiment of the present invention;
Fig. 3 is the enlarged drawing at A place in Fig. 1.
Embodiment
Below by embodiment, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: the first vertical rod 10, second vertical rod 20, groove 21, projection screen 30, rotating shaft 40, end cap 50.
Embodiment is substantially as shown in Figure 1: a kind of portable translucent screen, comprise projection screen 30, first vertical rod 10 and the second vertical rod 20, projection screen 30 side is connected with the first vertical rod 10 and projection screen 30 can twist in the first vertical rod 10, second vertical rod 20 is provided with the groove 21 can fixing projection screen 30, second vertical rod 20 is hollow setting, and the second vertical rod 20 hollow bulb can hold first vertical rod 10 of rolling up and having projection screen 30.As shown in Figure 3, be provided with rotating shaft 40 below the first vertical rod 10, rotating shaft 40 lower end is provided with the end cap 50 that can coordinate with the second vertical rod 20 threaded one end.Second vertical rod 20 lower end is provided with bearing, and bearing props up on the ground, and the second vertical rod 20 can be made to support more stable.First vertical rod 10 for removably connecting, can be suitable for the projection screen 30 of different size with projection screen 30 like this.Rotating shaft 40 and the first vertical rod 10, for being threaded, when rotating shaft 40 damages, being pulled down bad rotating shaft 40 and are then changed a new rotating shaft 40 and just can continue to use, cost-saving.
Projection screen 30 one end is connected with the first vertical rod 10, and when this projection screen does not use, projection screen 30 twists in the first vertical rod 10, and it is little and be convenient for carrying to take up an area space.When needs use projection screen 30, place on the ground by end cap 50, end cap 50 can be played a supporting role to the first vertical rod 10, compares and directly places more stable on the ground by the first vertical rod 10.Then pull projection screen 30 other end, because the first vertical rod 10 is connected with rotating shaft 40, rotating shaft 40 is rotated, and is easy to be pulled by projection screen 30.Second vertical rod 20 is placed on suitable place, then this end of projection screen 30 is coordinated with the second vertical rod 20 groove 21, just projection screen 30 can be fixed.Open projector just can project and employ.As shown in Figure 2, after finishing using, first the second vertical rod 20 be separated with projection screen 30, then rotating shaft 40, projection screen 30 will twist in the first vertical rod 10.Because the second vertical rod 20 is arranged for hollow, there is the first vertical rod 10 of projection screen 30 to put into the second vertical rod 20 volume, then end cap 50 is screwed in second vertical rod 20 one end.Such second vertical rod 20 just can play a protective role to projection screen 30, avoids its covered with dust or damaged.And, the first vertical rod 10 is placed in the second vertical rod 20, saves space, be convenient for carrying.End cap 50 in first vertical rod 10 and the second vertical rod 20 threaded engagement, structure is simple, designs ingenious, does not need other fixing parts, alleviates overall weight.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in instructions etc. record the content that may be used for explaining claim.
Claims (4)
1. a portable translucent screen, comprise projection screen, it is characterized in that, also comprise the first vertical rod and the second vertical rod, described projection screen side is connected with the first vertical rod and projection screen can twist in the first vertical rod, described second vertical rod is provided with the groove can fixing projection screen, described second vertical rod is that hollow is arranged, second vertical rod hollow bulb can hold the first vertical rod that volume has projection screen, be provided with rotating shaft below described first vertical rod, described rotating shaft lower end is provided with the end cap that can coordinate with the second vertical rod threaded one end.
2. portable translucent screen according to claim 1, is characterized in that, described second vertical rod lower end is provided with bearing.
3. portable translucent screen according to claim 2, is characterized in that, described first vertical rod and projection screen are for removably connecting.
4. portable translucent screen according to claim 3, is characterized in that, described rotating shaft and the first vertical rod are for removably connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510935884.4A CN105372921A (en) | 2015-12-15 | 2015-12-15 | Portable projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510935884.4A CN105372921A (en) | 2015-12-15 | 2015-12-15 | Portable projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105372921A true CN105372921A (en) | 2016-03-02 |
Family
ID=55375242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510935884.4A Pending CN105372921A (en) | 2015-12-15 | 2015-12-15 | Portable projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105372921A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172035A (en) * | 2018-02-02 | 2018-06-15 | 河南工学院 | Portable projection screen for computer teaching |
| CN110534029A (en) * | 2019-08-26 | 2019-12-03 | 深圳供电局有限公司 | Curling type electronic nameplate and electronic nameplate display method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004002620A1 (en) * | 2004-01-16 | 2005-08-18 | Felix Schram | Expanding wall divider has a flexible pull out construction braced by a scissors shaped linkage |
| CN2722294Y (en) * | 2004-07-06 | 2005-08-31 | 东莞福新文教用品厂有限公司 | horizontal screen |
| CN101048698A (en) * | 2004-09-17 | 2007-10-03 | 保罗·柯乐比 | Screen assembly |
| CN101866104A (en) * | 2009-04-14 | 2010-10-20 | 苏州璨宇光学有限公司 | Projection screen mechanism |
| CN102243429A (en) * | 2011-06-16 | 2011-11-16 | 中国科学院福建物质结构研究所 | Portable screen of micro projector |
| CN204462631U (en) * | 2015-02-10 | 2015-07-08 | 杭州先锐数码科技有限公司 | Support is shunk in the projection of a kind of portable knee spool |
-
2015
- 2015-12-15 CN CN201510935884.4A patent/CN105372921A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004002620A1 (en) * | 2004-01-16 | 2005-08-18 | Felix Schram | Expanding wall divider has a flexible pull out construction braced by a scissors shaped linkage |
| CN2722294Y (en) * | 2004-07-06 | 2005-08-31 | 东莞福新文教用品厂有限公司 | horizontal screen |
| CN101048698A (en) * | 2004-09-17 | 2007-10-03 | 保罗·柯乐比 | Screen assembly |
| CN101866104A (en) * | 2009-04-14 | 2010-10-20 | 苏州璨宇光学有限公司 | Projection screen mechanism |
| CN102243429A (en) * | 2011-06-16 | 2011-11-16 | 中国科学院福建物质结构研究所 | Portable screen of micro projector |
| CN204462631U (en) * | 2015-02-10 | 2015-07-08 | 杭州先锐数码科技有限公司 | Support is shunk in the projection of a kind of portable knee spool |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172035A (en) * | 2018-02-02 | 2018-06-15 | 河南工学院 | Portable projection screen for computer teaching |
| CN108172035B (en) * | 2018-02-02 | 2020-02-21 | 河南工学院 | A portable projection screen for computer teaching |
| CN110534029A (en) * | 2019-08-26 | 2019-12-03 | 深圳供电局有限公司 | Curling type electronic nameplate and electronic nameplate display method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160302 |
|
| RJ01 | Rejection of invention patent application after publication |