CN107505810A - A kind of concealed projection screen - Google Patents
A kind of concealed projection screen Download PDFInfo
- Publication number
- CN107505810A CN107505810A CN201710805362.1A CN201710805362A CN107505810A CN 107505810 A CN107505810 A CN 107505810A CN 201710805362 A CN201710805362 A CN 201710805362A CN 107505810 A CN107505810 A CN 107505810A
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- CN
- China
- Prior art keywords
- plate
- fixed
- connecting shaft
- wall
- 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.)
- Pending
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Classifications
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- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
The invention discloses a kind of concealed projection screen, bottom plate including being arranged at wall side, the wall is provided with the standing groove with bottom plate position correspondence, two the first sliding blocks are arranged with the downside of the bottom plate, the inner bottom part of the standing groove is provided with the first chute corresponding with the first sliding block, the madial wall of first chute is rotatably connected to screw rod, first sliding block is connected with screw flight, one end of the screw rod runs through the madial wall of the first chute and is fixedly connected with adjusting knob, two fixed plates are arranged with the upside of the bottom plate, two relative sides of the fixed plate are equipped with connecting shaft, the fixed plate is provided with socket corresponding with connecting shaft.The present invention is simple in construction, easy to use, the standing groove placed by being provided for projection screen on wall, so as to reduce the occupancy in space so that and it is indoor more neat and artistic, while avoid curtain and be exposed to air for a long time, extend service life.
Description
Technical field
The present invention relates to projection screen technical field, more particularly to a kind of concealed projection screen.
Background technology
Projection screen is used in the occasions such as film, office, home theater, convention, for display image, video
The instrument of file.The size selection of different space projection screens is also different, for example the number viewed and admired is more or laterally sees
The occasion seen preferably selects the screen of wide viewing angle, low gain, and long and narrow space viewing is to select the screen of narrow viewing angle, high-gain, simultaneously
From the screen for having appropriate gain, the contrast of screen is favorably improved, makes gradation of image increase, in bright gay color, increase image
It is considerable.
Existing projection screen typically uses glass bead screen, and it is arranged on the side of wall, and directly and external contact, bead
In atmosphere, easy oxidation turns yellow for small bead exposure on curtain, so as to influence drop shadow effect, and aoxidize not going back after turning yellow
Original, shortens service life, while curtain is naked for a long time is exposed on the external, and is easily contacted with other objects, so as to cause curtain
Damage, existing electric curtain can wind curtain into housing, and to avoid the impaired of curtain, but housing is still and is arranged on
The side of wall, while taking certain space, influence the attractive in appearance of interior.
In order to solve the above problems, we have proposed a kind of concealed projection screen.
The content of the invention
It is easily impaired in atmosphere the invention aims to solve curtain long-time exposure in the prior art, and be used for
The shell for winding curtain takes certain interior space, the problem of influenceing indoor beauty, and a kind of concealed projection screen proposed.
To achieve these goals, present invention employs following technical scheme：
A kind of concealed projection screen, including the bottom plate of wall side is arranged at, the wall is provided with and bottom plate position correspondence
Standing groove, two the first sliding blocks are arranged with the downside of the bottom plate, the inner bottom part of the standing groove is provided with and the first sliding block
Corresponding first chute, the madial wall of first chute are rotatably connected to screw rod, and first sliding block is connected with screw flight,
One end of the screw rod runs through the madial wall of the first chute and is fixedly connected with adjusting knob, is arranged with the upside of the bottom plate
Two fixed plates, two relative sides of the fixed plate are equipped with connecting shaft, and the fixed plate is provided with corresponding with connecting shaft
Socket, the connecting shaft extends close to one end of fixed plate into socket, and side of the fixed plate away from connecting shaft is provided with
Lock-screw, the lock-screw extend into socket close to one end of fixed plate and are threadedly coupled with connecting shaft, the locking
The head of screw offsets with fixed plate, and the one end of the connecting shaft away from fixed plate is fixedly connected with installation side plate, the installation
Side plate is provided with multiple mounting posts close to the side of connecting shaft around connecting shaft, and the one end of the mounting post away from installation side plate is provided with
First accommodating groove, the inner bottom part of first accommodating groove are connected with arc by second spring and compress plate, and the arc compresses plate
Side away from second spring is provided with ball, and the fixed plate is provided with annular slot rolling corresponding with ball, the annular slot rolling
Madial wall be provided with stopper slot corresponding with ball, the lateral wall of the multiple mounting post is around being provided with multiple L-type fasteners, institute
To state fixed plate and be provided with slot corresponding with L-type fastener, the madial wall of the slot is provided with neck corresponding with L-type fastener,
Cloth beam is rotatably connected between two installation side plates, curtain is arranged with the cloth beam.
Preferably, be arranged with the first spring on the lock-screw, the both ends of first spring respectively with lock-screw
Head and connecting shaft offset.
Preferably, around multiple second sliding blocks are provided with the connecting shaft, the madial wall of the socket is provided with and second
Second chute corresponding to sliding block.
Preferably, the bottom plate is located remote from the side of groove madial wall and is provided with mounting groove, and the madial wall of the mounting groove leads to
Cross first rotating shaft and be rotatably connected to guide roller.
Preferably, baffle plate is provided with the notch of the standing groove, the upper end of the baffle plate is connected by the second axis of rotation
There is the first fixed block, first fixed block is fixed on wall.
Preferably, the baffle plate is provided with the second accommodating groove corresponding with adjusting knob.
Preferably, the upside of first fixed block is provided with the second fixed block being fixedly connected with wall, and described second is solid
Determine block and connecting rod is connected with by the 3rd axis of rotation, fixture block is fixed with the connecting rod, the baffle plate is provided with and fixture block
Corresponding fixing groove.
Preferably, the baffle plate is in arc-shaped close to a lateral edges of the second rotating shaft.
In the present invention, by the setting of standing groove on wall, so as to facilitate the placement after projection screen winding, to reduce room
The occupancy in interior space so that it is indoor more neat and artistic, by the way that connecting shaft is inserted in socket, and side plate is rotatablely installed,
After facilitating L-type fastener to stretch into slot, the neck clamping with slot madial wall, so as to which installation side plate be fixed, this
During, because the elastic force of second spring acts on, so as to facilitate arc to compress plate by ball to compressing at the first accommodating groove notch,
So as to facilitate ball to be rolled in annular slot rolling, when L-type fastener and neck clamping, ball contacts with the madial wall of stopper slot,
So as to which further installation side plate be fixed, further, pass through rotation lock screw so that lock-screw and connecting shaft spiral shell
Line connects, and the head of lock-screw offsets with fixed plate, prevents connecting shaft from rotating, so that by the fixation to connecting shaft with right
The position of installation side plate is fixed, and cloth beam facilitates the winding of curtain, by rotating adjusting knob, so as to facilitate screw rod to turn
It is dynamic, because screw rod is threadedly coupled with the first sliding block, while the contact with the first chute madial wall of the first sliding block, so as to facilitate first
Sliding block is slided with the rotation of screw rod in the first chute, and then the position of bottom plate is adjusted, to facilitate wind-up roll to putting
Put and protruded outside groove notch, to facilitate putting down for curtain.The present invention is simple in construction, easy to use, by being provided on wall
The standing groove that projection screen is placed, so as to reduce the occupancy in space so that it is indoor more neat and artistic, avoid simultaneously
Curtain is exposed to air for a long time, extends service life.
Brief description of the drawings
Fig. 1 is a kind of structural representation of concealed projection screen proposed by the present invention；
Fig. 2 is the attachment structure schematic diagram of installation side plate and fixed plate in a kind of concealed projection screen proposed by the present invention；
Fig. 3 is the structural representation at A in Fig. 1；
Fig. 4 is the structural representation at B in Fig. 2；
Fig. 5 is a kind of structural representation of concealed projection screen open mode proposed by the present invention.
In figure：1 wall, 2 bottom plates, 3 standing grooves, 4 first sliding blocks, 5 first chutes, 6 screw rods, 7 adjusting knobs, 8 fixed plates,
9 connecting shafts, 10 sockets, 11 lock-screws, 12 first springs, 13 second sliding blocks, 14 installation side plates, 15 mounting posts, 16 second bullets
Spring, 17 arcs compress plate, 18 balls, 19 annular slot rollings, 20 stopper slots, 21 L-type fasteners, 22 slots, 23 cloth beams, 24 installations
Groove, 25 first rotating shafts, 26 guide rollers, 27 second rotating shafts, 28 first fixed blocks, 29 second accommodating grooves, 30 second fixed blocks, 31
Three rotating shafts, 32 connecting rods, 33 fixture blocks, 34 baffle plates, 35 fixing grooves.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.
In the description of the invention, it is to be understood that term " on ", " under ", "front", "rear", "left", "right", " top ",
The orientation or position relationship of the instruction such as " bottom ", " interior ", " outer " are based on orientation shown in the drawings or position relationship, merely to just
In the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Reference picture 1-5, a kind of concealed projection screen, including be arranged at the bottom plate 2 of the side of wall 1, wall 1 be provided with
The standing groove 3 of the position correspondence of bottom plate 2, the downside of bottom plate 2 are arranged with two the first sliding blocks 4, the inner bottom part of standing groove 3 be provided with
First chute 5 corresponding to first sliding block 4, the madial wall of the first chute 5 are rotatably connected to screw rod 6, the first sliding block 4 and the spiral shell of screw rod 6
Line connects, and one end of screw rod 6 runs through the madial wall of the first chute 5 and is fixedly connected with adjusting knob 7, by rotating adjusting knob
7, so as to facilitate screw rod 6 to rotate, because screw rod 6 is threadedly coupled with the first sliding block 4, while the first sliding block 4 and the inner side of the first chute 5
The contact of wall, so as to facilitate the first sliding block 5 to be slided with the rotation of screw rod 6 in the first chute 5, and then to the position of bottom plate 2
It is adjusted.
The upside of bottom plate 2 is arranged with two fixed plates 8, and two relative sides of fixed plate 8 are equipped with connecting shaft 9, Gu
Fixed board 8 is provided with socket 10 corresponding with connecting shaft 9, and connecting shaft 9 extends close to one end of fixed plate 8 into socket 10, connection
Around being provided with multiple second sliding blocks 13 on axle 9, the madial wall of socket 10 provided with 13 corresponding second chute of the second sliding block,
While facilitating insertion socket 10 of connecting shaft 9, the second sliding block 13 contacts with the second chute madial wall, so as to prevent connecting shaft 9
Rotate, side of the fixed plate 8 away from connecting shaft 9 is provided with lock-screw 11, and lock-screw 11 is close to one end of fixed plate 8 to socket
Extend in 10 and be threadedly coupled with connecting shaft 9, head and the fixed plate 8 of lock-screw 11 offset, and are arranged with lock-screw 11
First spring 12, the both ends of the first spring 12 offset with the head of lock-screw 11 and connecting shaft 9 respectively, due to the first spring 12
Elastic force effect, repulsion is formed between the head of lock-screw 11 and connecting shaft 9 so as to facilitate, because lock-screw 11 is with being connected
It is threadedly coupled between axle 9, so as to facilitate the extruding in lock-screw 11 and connecting shaft 9 between connection screw thread, so as to improve locking
Bonding strength between screw 11 and connecting shaft 9.
The one end of connecting shaft 9 away from fixed plate 8 is fixedly connected with installation side plate 14, and installation side plate 14 is close to connecting shaft 9
Side is provided with multiple mounting posts 15 around connecting shaft 9, and the one end of mounting post 15 away from installation side plate 14 is provided with the first accommodating groove, the
The inner bottom part of one accommodating groove is connected with arc by second spring 16 and compresses plate 17, and arc compresses plate 17 away from second spring 16
Side is provided with ball 18, and fixed plate 8 is provided with annular slot rolling 19 corresponding with ball 17, and the madial wall of annular slot rolling 19 is provided with
Stopper slot 20 corresponding with ball 17, the lateral wall of multiple mounting posts 15 are set around multiple L-type fasteners 21 are provided with fixed plate 8
There is slot 22 corresponding with L-type fastener 21, the madial wall of slot 22 is provided with and 21 corresponding neck of L-type fastener, two installations
Cloth beam 23 is rotatably connected between side plate 14, curtain is arranged with cloth beam 23, bottom plate 1 is located remote from the one of the madial wall of groove 3
Side is provided with mounting groove 24, and the madial wall of mounting groove 24 is rotatably connected to guide roller 26 by first rotating shaft 25, when curtain unreels, around
The top of guide roller 26 is crossed, is directly contacted with curtain so as to avoid knuckle so that curtain is damaged.
Baffle plate 34 is provided with the notch of standing groove 3, the convenient notch to standing groove 3 of baffle plate 34 blocks, so as to convenient
Protection is provided to projection screen, the upper end of baffle plate 34 is rotatably connected to the first fixed block 28 by the second rotating shaft 27, and baffle plate 34 leans on
One lateral edges of nearly second rotating shaft 27 are in arc-shaped, facilitate the rotation of baffle plate 34, and the first fixed block 28 is fixed on wall 1, gear
Plate 34 is provided with second accommodating groove 29 corresponding with adjusting knob 7, convenient to take in adjusting knob 7 in second accommodating groove 29, from
And the vertical of baffle plate 34 is ensure that, aesthetic property is improved, the upside of the first fixed block 28 is provided be fixedly connected with wall 1 second
Fixed block 30, the second fixed block 30 are rotatably connected to connecting rod 32 by the 3rd rotating shaft 31, fixture block 33 are fixed with connecting rod 32,
Baffle plate 34 is provided with fixing groove 35 corresponding with fixture block 33, and after 34 rotating opening of baffle plate, it is by remote second rotating shaft 27
One end is set upward, by being rotatablely connected bar 32 so that fixture block 33 and the clamping of fixing groove 35, baffle plate 34 is consolidated so as to convenient
It is fixed.
In the present invention, by the setting of standing groove 3 on wall 1, so as to facilitate the placement after projection screen winding, to reduce
The occupancy of the interior space so that it is indoor more neat and artistic, by the way that connecting shaft 9 is inserted in socket 10, and it is rotatablely installed
Side plate 14, after facilitating L-type fastener 21 to stretch into slot 22, the neck clamping with the madial wall of slot 22, so as to installation side plate
14 are fixed, during this, because the elastic force of second spring 16 acts on, so as to facilitate arc compress plate 17 by ball 18 to
Compressed at first accommodating groove notch, so as to facilitate ball 18 to be rolled in annular slot rolling 19, when L-type fastener 21 and neck clamping
When, ball 18 contacts with the madial wall of stopper slot 20, so as to which further installation side plate 14 be fixed, further, passes through
Rotation lock screw 11 so that lock-screw 11 is threadedly coupled with connecting shaft 9, and the head of lock-screw 11 and the phase of fixed plate 8
Support, prevent connecting shaft 9 from rotating, so as to by the fixation to connecting shaft 9, be fixed with the position to installation side plate 14, batching
Roller 23 facilitates the winding of curtain, by rotating adjusting knob 7, so as to facilitate screw rod 6 to rotate, due to the spiral shell of 6 and first sliding block of screw rod 4
Line connects, while the contact with the madial wall of the first chute 5 of the first sliding block 4, so as to facilitate the first sliding block 4 with the rotation of screw rod 6
Slided in the first chute 5, and then the position of bottom plate 2 is adjusted, to facilitate wind-up roll 23 to the notch evagination of standing groove 3
Go out, to facilitate putting down for curtain.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (8)
1. a kind of concealed projection screen, including it is arranged at wall（1）The bottom plate of side（2）, the wall（1）It is provided with and bottom
Plate（2）The standing groove of position correspondence（3）, it is characterised in that the bottom plate（2）Downside be arranged with two the first sliding blocks（4）,
The standing groove（3）Inner bottom part be provided with and the first sliding block（4）Corresponding first chute（5）, first chute（5）Inner side
Wall is rotatably connected to screw rod（6）, first sliding block（4）With screw rod（6）Threaded connection, the screw rod（6）One end through the
One chute（5）Madial wall and be fixedly connected with adjusting knob（7）, the bottom plate（2）Upside be arranged with two fixed plates
（8）, two fixed plates（8）Relative side is equipped with connecting shaft（9）, the fixed plate（8）It is provided with and connecting shaft（9）
Corresponding socket（10）, the connecting shaft（9）Close to fixed plate（8）One end to socket（10）Interior extension, the fixed plate（8）
Away from connecting shaft（9）Side be provided with lock-screw（11）, the lock-screw（11）Close to fixed plate（8）One end to socket
（10）Interior extension and and connecting shaft（9）Threaded connection, the lock-screw（11）Head and fixed plate（8）Offset, the company
Spindle（9）Away from fixed plate（8）One end be fixedly connected with installation side plate（14）, the installation side plate（14）Close to connecting shaft
（9）Side around connecting shaft（9）Provided with multiple mounting posts（15）, the mounting post（15）Away from installation side plate（14）One end
Provided with the first accommodating groove, the inner bottom part of first accommodating groove passes through second spring（16）It is connected with arc and compresses plate（17）, institute
State arc and compress plate（17）Away from second spring（16）Side be provided with ball（18）, the fixed plate（8）It is provided with and ball
（17）Corresponding annular slot rolling（19）, the annular slot rolling（19）Madial wall be provided with and ball（17）Corresponding stopper slot
（20）, the multiple mounting post（15）Lateral wall around being provided with multiple L-type fasteners（21）, the fixed plate（8）It is provided with and L
Type fastener（21）Corresponding slot（22）, the slot（22）Madial wall be provided with and L-type fastener（21）Corresponding neck, two
The individual installation side plate（14）Between be rotatably connected to cloth beam（23）, the cloth beam（23）On be arranged with curtain.
A kind of 2. concealed projection screen according to claim 1, it is characterised in that the lock-screw（11）On be arranged
There is the first spring（12）, first spring（12）Both ends respectively with lock-screw（11）Head and connecting shaft（9）Offset.
A kind of 3. concealed projection screen according to claim 1, it is characterised in that the connecting shaft（9）Upper surround sets
There are multiple second sliding blocks（13）, the socket（10）Madial wall be provided with and the second sliding block（13）Corresponding second chute.
A kind of 4. concealed projection screen according to claim 1, it is characterised in that the bottom plate（1）It is located remote from groove
（3）The side of madial wall is provided with mounting groove（24）, the mounting groove（24）Madial wall pass through first rotating shaft（25）Rotation connection
There is guide roller（26）.
A kind of 5. concealed projection screen according to claim 1, it is characterised in that the standing groove（3）Notch at
Provided with baffle plate（34）, the baffle plate（34）Upper end pass through the second rotating shaft（27）It is rotatably connected to the first fixed block（28）, it is described
First fixed block（28）It is fixed on wall（1）On.
A kind of 6. concealed projection screen according to claim 5, it is characterised in that the baffle plate（34）It is provided with and tune
Save knob（7）Corresponding second accommodating groove（29）.
A kind of 7. concealed projection screen according to claim 5, it is characterised in that first fixed block（28）It is upper
Side is provided with and wall（1）The second fixed block being fixedly connected（30）, second fixed block（30）Pass through the 3rd rotating shaft（31）Turn
It is dynamic to be connected with connecting rod（32）, the connecting rod（32）On be fixed with fixture block（33）, the baffle plate（34）It is provided with and fixture block
（33）Corresponding fixing groove（35）.
A kind of 8. concealed projection screen according to claim 5, it is characterised in that the baffle plate（34）Close to second turn
Axle（27）A lateral edges be in arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710805362.1A CN107505810A (en) | 2017-09-08 | 2017-09-08 | A kind of concealed projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710805362.1A CN107505810A (en) | 2017-09-08 | 2017-09-08 | A kind of concealed projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107505810A true CN107505810A (en) | 2017-12-22 |
Family
ID=60695780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710805362.1A Pending CN107505810A (en) | 2017-09-08 | 2017-09-08 | A kind of concealed projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107505810A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108710253A (en) * | 2018-07-07 | 2018-10-26 | 东莞市联洲知识产权运营管理有限公司 | It is a kind of that device is intelligently stretched out using the home projector instrument of movable cover plate structure |
| CN108825976A (en) * | 2018-07-07 | 2018-11-16 | 东莞市联洲知识产权运营管理有限公司 | A kind of intelligent domestic projector hand hoisting mechanism |
| CN109000131A (en) * | 2018-07-07 | 2018-12-14 | 东莞市联洲知识产权运营管理有限公司 | A kind of home projector instrument Intelligent lifting mechanism |
| CN110094013A (en) * | 2019-04-19 | 2019-08-06 | 温州睿鹰建设工程有限公司 | A kind of assembled wallboard |
| CN110308612A (en) * | 2019-08-02 | 2019-10-08 | 江苏久誉显示科技有限公司 | A kind of arc electric screen |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8040602B1 (en) * | 2007-09-07 | 2011-10-18 | Sima Technologies Llc | Frame assembly for a projection screen system |
| CN202472230U (en) * | 2012-03-07 | 2012-10-03 | 极品影视设备科技(深圳)有限公司 | Hidden projection screen |
| CN202794825U (en) * | 2012-05-21 | 2013-03-13 | 陈金高 | Video-wall projection screen device |
| US20170108765A1 (en) * | 2015-10-14 | 2017-04-20 | WirePath Home Systems d/b/a SnapAV | Projection screens and related systems and methods |
-
2017
- 2017-09-08 CN CN201710805362.1A patent/CN107505810A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8040602B1 (en) * | 2007-09-07 | 2011-10-18 | Sima Technologies Llc | Frame assembly for a projection screen system |
| CN202472230U (en) * | 2012-03-07 | 2012-10-03 | 极品影视设备科技(深圳)有限公司 | Hidden projection screen |
| CN202794825U (en) * | 2012-05-21 | 2013-03-13 | 陈金高 | Video-wall projection screen device |
| US20170108765A1 (en) * | 2015-10-14 | 2017-04-20 | WirePath Home Systems d/b/a SnapAV | Projection screens and related systems and methods |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108710253A (en) * | 2018-07-07 | 2018-10-26 | 东莞市联洲知识产权运营管理有限公司 | It is a kind of that device is intelligently stretched out using the home projector instrument of movable cover plate structure |
| CN108825976A (en) * | 2018-07-07 | 2018-11-16 | 东莞市联洲知识产权运营管理有限公司 | A kind of intelligent domestic projector hand hoisting mechanism |
| CN109000131A (en) * | 2018-07-07 | 2018-12-14 | 东莞市联洲知识产权运营管理有限公司 | A kind of home projector instrument Intelligent lifting mechanism |
| CN110094013A (en) * | 2019-04-19 | 2019-08-06 | 温州睿鹰建设工程有限公司 | A kind of assembled wallboard |
| CN110308612A (en) * | 2019-08-02 | 2019-10-08 | 江苏久誉显示科技有限公司 | A kind of arc electric screen |
| CN110308612B (en) * | 2019-08-02 | 2024-03-01 | 江苏久誉显示科技有限公司 | Arc-shaped electric curtain |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171222 |