CN211669493U - Shading device for projection screen - Google Patents
Shading device for projection screen Download PDFInfo
- Publication number
- CN211669493U CN211669493U CN201922339364.3U CN201922339364U CN211669493U CN 211669493 U CN211669493 U CN 211669493U CN 201922339364 U CN201922339364 U CN 201922339364U CN 211669493 U CN211669493 U CN 211669493U
- Authority
- CN
- China
- Prior art keywords
- shading
- fixed
- fixed support
- support bar
- projection 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.)
- Active
Links
- 239000004744 fabric Substances 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 230000008602 contraction Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Abstract
The utility model discloses a projection screen shading device, including multi-functional box, folding shading cloth, shading open and shut support frame and accomodate the chamber, accomodate the chamber and locate multi-functional cavity rear side, shading open and shut support frame is located and accomodates on the chamber, folding shading is laid on shading open and shut support frame, shading open and shut support frame is including supporting telescopic link, fixed support bar and regulation pole, accomodate the chamber left and right sides wall upper end and be equipped with fixed through-hole one, fixed through-hole one is the symmetry setting, fixed support bar is the symmetry setting and runs through fixed through-hole, support telescopic link one end and locate in the cavity and locate on the fixed support bar, regulation pole one end articulates and locates fixed support; the utility model belongs to the technical field of projectors; the projection screen shading device can prevent direct light, achieves the effect of clear screen images of the projector, can be used indoors and outdoors, and solves the problem that the projector cannot be used in places with sufficient sunlight.
Description
Technical Field
The utility model belongs to the technical field of the projector, especially, relate to a projection screen shade.
Background
With the combination of information technology and traditional teaching mode, projectors play an increasingly important role in education and teaching, being the most intuitive weapon that draws visual attention in conference lectures and classroom teaching. However, the problems of unsatisfactory meeting and classroom lectures are often caused in use, because the images of the projector are blurred when irradiated onto the screen in the auditorium and classroom with sufficient sunlight, the curtain can be pulled on the place with good conditions to reduce the direct irradiation of sunlight, so that the images of the projection screen are clear, but the people feel uncomfortable when listening and speaking in the 'dark' classroom or auditorium, and the learning effect of the people is influenced after a long time. The inventor has diligently considered that the effect of making the image on the screen clear can be achieved even when a light shield is arranged on the projector screen and used in strong light.
Disclosure of Invention
To the above situation, for overcoming prior art's defect, the utility model provides a projection screen shade can prevent the perpendicular incidence of light, reaches the clear effect of projector screen image, can be at the outdoor projecting apparatus that uses of indoor, solves the problem that sunshine is sufficient local can't use the projecting apparatus.
The utility model adopts the technical scheme as follows: the utility model provides a projection screen shade, includes multi-functional box, folding shading cloth, shading support frame that opens and shuts and accomodate the chamber, it locates multi-functional cavity rear side to accomodate the chamber, shading support frame that opens and shuts is located and accomodates on the chamber, folding shading is laid on the shading support frame that opens and shuts, shading support frame that opens and shuts is including supporting telescopic link, fixed support bar and regulation pole, it is equipped with fixing hole one to accomodate chamber left and right sides wall upper end, fixing hole one is the symmetry setting, fixing support bar is the symmetry setting and runs through fixing hole, support telescopic link one end and locate in the cavity and locate fixed support bar on, it articulates and locates fixed support bar one end to adjust pole one end.
Further, it is equipped with adapter sleeve to adjust pole one side near supporting the shrink pole, adapter sleeve includes shrink spring, connecting rod and backup pad, fixed support bar is the cavity setting, fixed support bar is close to regulation pole one end and runs through to support the shrink pole lateral wall and locates in the adapter sleeve, the shrink backup pad is located in the adapter sleeve and is located fixed support bar, connecting rod one end is located the inside regulation pole one end that is close to of adapter sleeve, the connecting rod other end runs through the shrink backup pad and locates in the fixed support bar, shrink spring housing locates on the connecting rod and locates the shrink backup pad and keep away from fixed support bar one side, and adapter sleeve plays limiting displacement to fixed support bar, and the shrink backup pad plays fixed action to fixed support bar, realizes adjusting the pole and supporting the.
Further, accomodate chamber left and right sides wall lower extreme and be equipped with fixed through hole two, fixed through hole two is the symmetry setting, fixed through hole two and fixed support rod are to the matching, when supporting the telescopic link and folding up, press fixed support rod, will support the telescopic link and pop out from fixed through hole two when moving down to fixed through hole two along accomodating the chamber fixed support rod, two pairs of fixed support rod of fixed through hole play limiting displacement.
Furthermore, the front side of the multifunctional box body is provided with a double door, so that the functional box body can be conveniently opened to take and place internal articles.
Furthermore, the side wall is equipped with the skid resistant course on the multi-functional box, and the skid resistant course surface is crude, the diffuse reflection of supplementary light, supplementary projection effect.
After the structure is adopted, the utility model discloses beneficial effect as follows: the utility model relates to a projection screen shading device, the multifunctional box body plays the role of containing a projection screen and a projection support, and the shading opening and closing support frame can be contained in a containing cavity integrated with the multifunctional box body in a telescopic way, so that the use of carrying the projection screen, the projection screen support and the shading component independently is realized, the carrying is convenient, and the space is not occupied; the support contraction frame can realize the height of the shading opening and closing support frame, and realize the use of projection screens of different models; the device can prevent the direct irradiation of light rays and achieve the effect of clear screen images of the projector. The projector can be used indoors and outdoors, and the problem that the projector cannot be used in places with sufficient sunlight is solved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic view of the whole structure of a shading device for a projection screen according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic structural view of a shading open/close support frame of a shading device for a projection screen according to the present invention;
fig. 4 is a structural schematic view of a multi-kinetic energy box of a shading device for a projection screen according to the present invention;
FIG. 5 is a schematic view of a supporting and retracting rod of a shading device for a projection screen according to the present invention;
fig. 6 is a schematic view of a connection sleeve structure of a light shielding device for a projection screen according to the present invention.
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings: 1. multifunctional box, 2, folding shading cloth, 3, shading support frame that opens and shuts, 4, accomodate the chamber, 5, support shrink pole, 6, fixed support pole, 7, regulation pole, 8, fixed through hole one, 9, adapter sleeve, 10, shrink spring, 11, connecting rod, 12, shrink backup pad, 13, fixed through hole two, 14, two divisions of doors, 15, skid resistant course.
The specific embodiments,
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1-5, a projection screen shading device, it includes multifunctional box 1, folding shading cloth 2, shading support frame 3 that opens and shuts and accomodate chamber 4, accomodate chamber 4 and locate 1 rear side of multifunctional cavity, shading support frame 3 that opens and shuts is located and accomodates on chamber 4, folding shading cloth 2 is located on shading support frame 3 that opens and shuts, shading support frame 3 that opens and shuts is including supporting shrink pole 5, fixed support bar 6 and regulation pole 7, it is equipped with fixing hole one 8 to accomodate 4 left and right sides wall upper ends in chamber, fixing hole one 8 is the symmetry setting, fixing support bar 6 is the symmetry setting and runs through fixing hole one 8, support shrink pole 5 one end and locate in the cavity and locate on fixed support bar 6, adjust the articulated 6 one end of fixing support bar of locating of 7.
Wherein, one side of the adjusting rod 7 close to the supporting and shrinking rod 5 is provided with a connecting sleeve 9, the connecting sleeve 9 comprises a shrinking spring 10, a connecting rod 11 and a shrinking supporting plate 12, the fixed support bar 6 is arranged in a hollow way, one end of the fixed support bar 6 close to the adjusting rod 7 penetrates through the side wall of the supporting and shrinking rod 5 and is arranged in the connecting sleeve 9, the retractable supporting plate 12 is arranged in the connecting sleeve 9 and on the fixed supporting rod 6, one end of the connecting rod 11 is arranged at one end of the connecting sleeve 9 close to the adjusting rod 7, the other end of the connecting rod 11 penetrates through a contraction supporting plate 12 and is arranged in the fixed supporting rod 6, the contraction spring 10 is sleeved on the connecting rod 11 and is arranged on one side, away from the fixed supporting rod 6, of the contraction supporting plate 12, the connecting sleeve 9 plays a limiting role in the fixed supporting rod 6, the contraction supporting plate 12 plays a fixing role in the fixed supporting rod 6, and the hinged arrangement between the adjusting rod 7 and the support contraction rod 5 is realized; the lower ends of the left side wall and the right side wall of the containing cavity 4 are provided with two fixing through holes 13, the two fixing through holes 13 are symmetrically arranged, the two fixing through holes 13 are matched with the fixing support rod 6, when the supporting telescopic rod 5 is stretched and folded, the fixing support rod 6 is pressed, when the supporting telescopic rod 5 moves downwards along the containing cavity 4 to the position of the two fixing through holes 13, the fixing support rod 6 is popped out of the two fixing through holes 13, and the two fixing through holes 13 play a limiting role on the fixing support rod 6; the multifunctional box body 1 is provided with the double doors 14, so that the multifunctional box body 1 can be conveniently opened to take and place internal articles; the lateral wall is equipped with skid resistant course 15 on the multi-functional box 1, and skid resistant course 15 surface is crude, the diffuse reflection of supplementary light, supplementary projection effect.
When the multifunctional box body is used in a specific mode, the projection screen support and the projection screen can be accommodated in the multifunctional box body 1 in an initial state; the folding shading cloth 2 is arranged on the shading opening and closing support frame 3, the shading opening and closing support frame 3 and the folding shading cloth 6 are arranged in the containing cavity 4, and at the moment, the fixing support rod 6 penetrates through the fixing through hole II 13; when in use, the double door 14 is opened, the projection screen and the projection screen bracket are taken out and installed; the fixed support rod 6 is pressed, the shrinkage support plate 12 extrudes the shrinkage spring 10, the fixed support rod 6 moves towards the connecting sleeve 9, at the moment, the fixed support rod 6 enters the accommodating cavity 4, the shading opening and closing support frame 3 is pulled upwards, and when the fixed support rod 6 moves upwards to the first fixing through hole 8 along the cavity wall of the accommodating cavity 4, the shrinkage support plate 12 pushes the fixed support rod 6 to be far away from the connecting sleeve 9 under the action of the elastic force of the shrinkage spring 10 to penetrate through the first fixing through hole 8, so that the shading opening and closing fixed support frame 3 is fixed; the angle between the adjusting rod 7 and the fixed supporting rod 6 is adjusted, the folding shading cloth 2 is spread, and the device is moved to the front end of the projection screen to shade the projection screen.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (5)
1. A projection screen shading device is characterized in that: including multi-functional box, folding shading cloth, shading support frame that opens and shuts and accomodate the chamber, it locates multi-functional cavity rear side to accomodate the chamber, shading support frame that opens and shuts is located and accomodates on the chamber, folding shading cloth is located on the shading support frame that opens and shuts, the shading support frame that opens and shuts is including supporting telescopic link, fixed support bar and regulation pole, it is equipped with fixed through hole one to accomodate chamber left and right sides wall upper end, fixed through hole one is the symmetry setting, fixed support bar is the symmetry setting and runs through fixed through hole, support telescopic link one end and locate in the cavity and locate fixed support bar on, it articulates fixed support bar one end to adjust pole one end.
2. A projection screen shading device according to claim 1, wherein: the adjusting rod is close to and supports shrink pole one side and is equipped with adapter sleeve, adapter sleeve includes shrink spring, connecting rod and shrink backup pad, fixed support bar is cavity setting, fixed support bar is close to adjusting pole one end and runs through to support shrink pole lateral wall and locates in the adapter sleeve, the shrink backup pad is located in the adapter sleeve and is located on the fixed support bar, connecting rod one end is located the inside regulation pole one end that is close to of adapter sleeve, the connecting rod other end runs through the shrink backup pad and locates in the fixed support bar, shrink spring housing is located on the connecting rod and is located the shrink backup pad and keep away from fixed support.
3. A projection screen shading device according to claim 1, wherein: the lower ends of the left side wall and the right side wall of the containing cavity are provided with second fixing through holes, the second fixing through holes are symmetrically arranged, and the second fixing through holes are matched with the fixing support rods.
4. A projection screen shading device according to claim 1, wherein: the front side of the multifunctional box body is provided with a double door.
5. A projection screen shading device according to claim 1, wherein: the upper side wall of the multifunctional box body is provided with an anti-skid layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922339364.3U CN211669493U (en) | 2019-12-24 | 2019-12-24 | Shading device for projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922339364.3U CN211669493U (en) | 2019-12-24 | 2019-12-24 | Shading device for projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211669493U true CN211669493U (en) | 2020-10-13 |
Family
ID=72734463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922339364.3U Active CN211669493U (en) | 2019-12-24 | 2019-12-24 | Shading device for projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211669493U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112363364A (en) * | 2020-11-23 | 2021-02-12 | 深圳市易平方网络科技有限公司 | Water mist projection system |
-
2019
- 2019-12-24 CN CN201922339364.3U patent/CN211669493U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112363364A (en) * | 2020-11-23 | 2021-02-12 | 深圳市易平方网络科技有限公司 | Water mist projection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101851044B1 (en) | roll screen device | |
| CN211669493U (en) | Shading device for projection screen | |
| US7889424B2 (en) | Collapsing projection screen consisting of a reflecting fabric retracted in a box behind a wall decoration | |
| CN215642251U (en) | Culture show is with holographic water smoke projection of adjustable light intensity | |
| CN106023660A (en) | Interactive teaching system | |
| CN105437941A (en) | Shading plate | |
| CN200941145Y (en) | Projector screen with glare shield | |
| CN112622490B (en) | Anti-reflection device for education and teaching | |
| CN112392297A (en) | Sunshade and rainproof equipment for pedestrians | |
| CN206617054U (en) | A kind of pseudo-classic mosquito proof of pure bamboo, antitheft, multi-functional pseudo-classic window of preventing fires | |
| CN215936817U (en) | Landscape seat with sun-proof and rain-proof functions | |
| CN206503499U (en) | A kind of door being opened flat afterwards that first stretches | |
| CN207383873U (en) | Multifunction calligraphy and painting study and work desk | |
| CN219109270U (en) | Curtain device for shower room | |
| CN110728884A (en) | Language class subject writes teaching show shelf | |
| CN211742306U (en) | Teaching display for environmental art design | |
| CN216133297U (en) | Novel light-resistant projection curtain structure for classroom | |
| CN218791291U (en) | Modern-style background television cabinet for household living room | |
| US2435620A (en) | Moving-picture projection screen | |
| JPH0131711Y2 (en) | ||
| CN215494797U (en) | Auxiliary device for software development | |
| CN218805153U (en) | Sectional type skylight sunshade screen | |
| CN208546092U (en) | Hollow glass composite window | |
| CN214450194U (en) | Car door with openable car window | |
| CN112622491B (en) | Education and teaching presses down dirt system with environmental protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240122 Address after: 201108 room 337, floor 3, building 12, No. 319, Caolian Road, Minhang District, Shanghai Patentee after: Diheng Technology Co.,Ltd. Country or region after: China Address before: Room B301, building 2, No. 2588, Hongmei South Road, Minhang District, Shanghai, 201100 Patentee before: Shanghai Didong Technology Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |