CN208834091U - A kind of projection screen automatically adjusting projection ratio - Google Patents
A kind of projection screen automatically adjusting projection ratio Download PDFInfo
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- CN208834091U CN208834091U CN201821363170.6U CN201821363170U CN208834091U CN 208834091 U CN208834091 U CN 208834091U CN 201821363170 U CN201821363170 U CN 201821363170U CN 208834091 U CN208834091 U CN 208834091U
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- curtain
- frame
- fixed
- spool
- projection screen
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Abstract
A kind of projection screen automatically adjusting projection ratio comprising frame, curtain and Bian Ping mechanism, frame are fixed on the ceiling or on wall, and curtain and Bian Ping mechanism are fixed on frame；Bian Ping mechanism includes spool, cloth beam, motor and the black lining for blocking curtain, spool and motor are fixed on frame, spool is connect with motor driven, the upper end of black lining is fixed on spool, lower end is fixed on cloth beam, black lining is arranged in front of curtain, adjusts the projected picture ratio of curtain by black lining intervolving on spool.The utility model is suitable for electric screen and picture frame screen, can adjust the height of black lining according to different projected picture ratios, after ensuring that projected picture ratio changes, without extra white edge on projection screen face, better visual experience is brought, and its structure is simple, production cost is low, and failure rate is low.
Description
Technical field
The utility model relates to projection screen field more particularly to a kind of projection screens for automatically adjusting projection ratio.
Background technique
Projection screen is one of product most-often used in projector's peripheral equipment, and projection screen is the abbreviation of projection screen, main
If being used in film, office, home theater, in convention occasion, for showing the tool of image, video file.Tradition is thrown
Shadow curtain is divided into electric screen and picture frame screen, and only one piece of curtain, projected picture ratio are fixed, and different application scenarios need to adjust
When projection ratio, since projection ratio is fixed, picture will appear the case where can not making, and side, serious shadow can be left white on projection screen
Visual effect is rung.
Prior art discloses a kind of amplitude-variable projection screen (application number: 200520120811.1), the utility model be by
Projection screen and forming to draw curtain with covering effect, the front of projection screen is located to draw curtain, to draw curtain by a square frame and
Positioned at the dark curtain composition two inside of framework symmetrically arranged reel and be wrapped on reel, wherein a reel is equipped with
Motor, both ends are equipped with driving wheel, and the both ends of another reel are equipped with driven wheel, and driving wheel drives driven wheel rotation, in volume two
The front of cylinder draw direction, which is equipped with, is respectively equipped with push and pull springs, and push and pull springs one end is fixed on frame, on the other end and reel
Curtain end fix, start motor, reel starts turning, and winds the dark curtain on reel to reel, while driving wheel
Under drive, driven wheel rotation, driven wheel drives another reel also to rotate together, and keeps the two dark curtains to draw curtain right simultaneously
It draws.The utility model is easy to use, can arbitrarily adjust the projection amplitude of projection screen, is a kind of simple projection screen of structure.
The patent is to cover in the left and right sides of projection screen using to draw curtain, to change the projection width of projection screen
Degree, but common length-width ratio of video be 16:9,16:10,4:3, the patent in actual use, the sky of the two sides up and down of projection screen
White region can then remain too much, cause people visual uncomfortable.
Summary of the invention
Shortcoming present in view of the above technology, the purpose of the utility model is to provide a kind of automatic adjustments to project ratio
The projection screen of example, has merged traditional electric screen and picture frame screen, can adjust the height of black lining according to different projected picture ratios
Degree, it is ensured that after projected picture ratio changes, without extra white edge on projection screen face, bring better visual experience, and the letter of its structure
Single, production cost is low, and failure rate is low.
To achieve the above object, the utility model is realized in this way:
A kind of projection screen automatically adjusting projection ratio comprising frame, curtain and Bian Ping mechanism, the frame are fixed on
On ceiling or on wall, the curtain and Bian Ping mechanism are fixed on frame；The Bian Ping mechanism includes spool, cloth beam, motor
With the black lining for blocking curtain, the spool and motor are fixed on frame, and the spool is connect with motor driven, described black
The upper end of lining is fixed on spool, and lower end is fixed on cloth beam, and the black lining is arranged in front of curtain, is existed by black lining
Intervolving to adjust the projected picture ratio of curtain on spool.Black lining is set before curtain, utilizes the own wt of cloth beam
So that black lining is kept formation state, is rotated by motor driven spool, change the opening degree of black lining, to change the projection of curtain
Ratio, the structure of this regulative mode is simple, Yi Shixian.
Further, the Bian Ping mechanism further includes gearbox, and the gearbox is fixed on frame, gearbox and electricity
Machine, spool are drivingly connected, the revolving speed and torque that motor is needed by gearbox output, and are sent on spool.The gearbox
Setting, thus it is possible to vary motor output revolving speed and torque so that packing up for black lining will not be too urgent with flaring operation, while not shadow
Ring the service life of the present apparatus.
Further, the frame includes outline border and inside casing, and the outline border is for accommodating Bian Ping mechanism, and the inside casing is for holding
Receive curtain.Outline border and inside casing are set on frame, does not interfere with each other the operation that intervolves of black lining or curtain, is also accommodated in when idle
Wherein, prevent it from polluting or damaging.
Further, a kind of projection screen automatically adjusting projection ratio further includes curtain fixed mechanism, and the curtain is solid
Determining mechanism includes lower fixed frame, upper lacing film and lower lacing film, and on the wall, the upper end of the curtain is logical for the lower fixed frame fixed setting
It crosses lacing film to be fixed on frame, the lower end of the curtain is fixed on lower fixed frame by lower lacing film.
Further, a kind of projection screen automatically adjusting projection ratio further includes curtain elevating mechanism, the curtain liter
Descending mechanism includes shaft, driving motor and lower axle, and the shaft and driving motor are fixed on frame, the shaft and driving electricity
Machine is drivingly connected, and the lower axle is fixedly connected with curtain lower end, drives shaft rotation by driving motor, and then drive curtain
It rises or falls.The lower axle is fixedly connected with curtain, can play the role of guiding, for pulling curtain and making under curtain
Unfolded state is kept when vertical.
Further, the curtain elevating mechanism further includes a plurality of bearings and a plurality of bearing blocks, and the bearing setting exists
In bearing block, and the bearing is socketed in shaft, and the bearing is flexibly connected with shaft, the bearing block and the fixed company of frame
It connects.Shaft is fixed on frame by bearing and bearing block, so that the mounting means of shaft is more stable；Using bearing and turn
Axis is flexibly connected, and can be supported shaft, be reduced the coefficient of friction in its motion process, and guarantee its rotating accuracy.
Further, the projection screen further includes remote controler, can control the lifting of black lining or curtain by remote controler,
Remote control mode is RF remote-controlled or wireless flat or central control system.RF remote-controlled or wireless flat or central control system are existing skill
Art can control packing up or opening for black lining or curtain by a variety of remote control modes, simple and convenient, meet the more of client
Sample demand.
The advantage of the utility model is that the utility model is suitable for electric screen and picture frame screen, can be according to different throwings
Shadow aspect ratio adjusts the height of black lining, it is ensured that after projected picture ratio changes, without extra white edge on projection screen face, brings more
Good visual experience, and its structure is simple, production cost is low, and failure rate is low.
Detailed description of the invention
Fig. 1 is that the present embodiment one installs left view.
Fig. 2 is that the present embodiment two installs left view.
Fig. 3 is the curtain elevating mechanism partial enlarged view of the present embodiment two.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Embodiment one: referring to Fig.1, the present embodiment is accomplished that the projected picture ratio for changing picture frame screen.
A kind of projection screen automatically adjusting projection ratio comprising frame 1, curtain 2 and Bian Ping mechanism 3, frame 1 are fixed on
On ceiling or on wall, curtain 2 and Bian Ping mechanism 3 are fixed on frame 1；Bian Ping mechanism 3 includes spool 31, cloth beam 32, motor
(not shown) and black lining 33 for blocking curtain, spool 31 and motor are fixed on frame 1, and spool 31 and motor driven connect
It connecing, the upper end of black lining 33 is fixed on spool 31, and lower end is fixed on cloth beam 32, and black lining 33 is arranged in front of curtain 2,
The projected picture ratio of curtain 2 is adjusted by black the intervolving on spool 31 of lining 33.Black lining 33 is set before curtain 2,
So that black lining 33 is kept formation state using the own wt of cloth beam 32, is rotated by motor driven spool 31, change black lining 33
Opening degree, to change the projection ratio of curtain 2, the structure of this regulative mode is simple, Yi Shixian.
In the present embodiment, Bian Ping mechanism 3 further includes gearbox (not shown), and gearbox is fixed on frame 1, is become
Fast case and motor, spool 31 are drivingly connected, the revolving speed and torque that motor is needed by gearbox output, and are sent to spool 31
On.The setting of gearbox, thus it is possible to vary the revolving speed and torque of motor output, so that black 33 packing up for lining will not mistake with flaring operation
It is anxious, while the service life of the present apparatus is not influenced.
In the present embodiment, frame 1 includes outline border 11 and inside casing 12, and outline border 11 is used for accommodating Bian Ping mechanism 3, inside casing 12
In receiving curtain 2.Outline border 11 and inside casing 12 are set on frame 1, make not interfereing with each other for black lining 33 or curtain 2, when idle
It is accommodated in wherein, prevents it from polluting or damaging.
In the present embodiment, the projection screen further includes curtain fixed mechanism 4, and curtain fixed mechanism includes lower fixed frame
41, upper lacing film 42 and lower lacing film 43, on the wall, the upper end of curtain 2 is fixed on by upper lacing film 42 for the lower fixed setting of fixed frame 41
On frame 1, the lower end of curtain 2 is fixed on lower fixed frame 41 by lower lacing film 43.
In the present embodiment, the projection screen further includes remote controler (not shown), can control black lining 33 by remote controler
Lifting, remote control mode be RF remote-controlled or wireless flat or central control system.RF remote-controlled or wireless flat or central control system
For the prior art, packing up or opening for black lining 33 can be controlled by a variety of remote control modes, it is simple and convenient, meet client
Diverse requirements.
Embodiment two: referring to Fig. 2, Fig. 3, the present embodiment is accomplished that the projected picture ratio for changing electric screen.
A kind of projection screen automatically adjusting projection ratio comprising frame 5, curtain 6 and Bian Ping mechanism 7, frame 5 are fixed on
On ceiling or on wall, curtain 6 and Bian Ping mechanism 7 are fixed on frame 5；Bian Ping mechanism 7 includes spool 71, cloth beam 72, motor
(not shown) and black lining 73 for blocking curtain 6, spool 71 and motor are fixed on frame 5, and spool 71 and motor driven connect
It connecing, the upper end of black lining 73 is fixed on spool 71, and lower end is fixed on cloth beam 72, and black lining 73 is arranged in front of curtain 6,
The projected picture ratio of curtain 6 is adjusted by black the intervolving on spool 71 of lining 73.Black lining 73 is set before curtain 6,
So that black lining 73 is kept formation state using the own wt of cloth beam 72, is rotated by motor driven spool 71, change black lining 73
Opening degree, to change the projection ratio of curtain 6, the structure of this regulative mode is simple, Yi Shixian.
In the present embodiment, Bian Ping mechanism further includes gearbox (not shown), and gearbox is fixed on frame 5, is become
Fast case and motor, spool 71 are drivingly connected, the revolving speed and torque that motor is needed by gearbox output, and are sent to spool 71
On.The setting of gearbox, thus it is possible to vary the revolving speed and torque of motor output, so that black packing up for lining 73 will not mistake with flaring operation
It is anxious, while the service life of the present apparatus is not influenced.
In the present embodiment, frame 5 includes outline border 51 and inside casing 52, and outline border 51 is used for accommodating Bian Ping mechanism 7, inside casing 52
In receiving curtain 6.Outline border 51 and inside casing 52 are set on frame 5, do not interfere with each other the operation that intervolves of black lining 73 or curtain 6,
It is also accommodated in wherein when idle, prevents it from polluting or damaging.
In the present embodiment, the projection screen further includes curtain elevating mechanism 8, and curtain elevating mechanism 8 includes shaft 81, drives
Dynamic motor 82 and lower axle 83, shaft 81 and driving motor 82 are fixed on frame 8, and shaft 81 and driving motor 82 are drivingly connected,
Lower axle 83 is fixedly connected with 6 lower end of curtain, drives shaft 81 to rotate by driving motor 82, and then drive the rising of curtain 6
Or decline.Lower axle 83 is fixedly connected with curtain 6, can play the role of guiding, for pulling curtain 6 and keeping curtain 6 sagging
When keep unfolded state.
In the present embodiment, 8 structure of curtain elevator further includes a plurality of bearings 84 and a plurality of bearing blocks 85, and bearing 84 is set
It sets in bearing block 85, and bearing 84 is socketed in shaft 81, bearing 84 is flexibly connected with shaft 81, bearing block 85 and frame 5
It is fixedly connected.Shaft 81 is fixed on frame 5 by bearing 84 and bearing block 85, so that the mounting means of shaft 81 is more steady
It is fixed；It is flexibly connected using bearing 84 with shaft 81, shaft 81 can be supported, reduce the coefficient of friction in its motion process, and protect
Demonstrate,prove its rotating accuracy.
In the present embodiment, the projection screen further includes remote controler (not shown), can control black lining 73 by remote controler
Or the lifting of curtain 6, remote control mode are RF remote-controlled or wireless flat or central control system.RF remote-controlled or wireless flat or in
Control system is the prior art, and packing up or opening for black lining 73 or curtain 6, simple side can be controlled by a variety of remote control modes
Just, the diverse requirements of client are met.
The advantage of the utility model is that the utility model is suitable for electric screen and picture frame screen, can be according to different throwings
Shadow aspect ratio adjusts the height of black lining, it is ensured that after projected picture ratio changes, without extra white edge on projection screen face, brings more
Good visual experience, and its structure is simple, production cost is low, and failure rate is low.
It is above the utility model preferred embodiment, but the utility model is not limited to this, any this field
Technical staff can think variation should all fall into the protection scope of the utility model.
Claims (7)
1. a kind of projection screen for automatically adjusting projection ratio, it is characterised in that it includes frame, curtain and Bian Ping mechanism, the frame
Frame is fixed on the ceiling or on wall, and the curtain and Bian Ping mechanism are fixed on frame；The Bian Ping mechanism includes spool, cloth
Axis, motor and the black lining for blocking curtain, the spool and motor are fixed on frame, and the spool and motor driven connect
It connecing, the upper end of the black lining is fixed on spool, and lower end is fixed on cloth beam, and the black lining is arranged in front of curtain,
The projected picture ratio of curtain is adjusted by black lining intervolving on spool.
2. a kind of projection screen for automatically adjusting projection ratio according to claim 1, it is characterised in that the Bian Ping mechanism
It further include gearbox, the gearbox is fixed on frame, and gearbox and motor, spool are drivingly connected, and motor passes through change
The revolving speed and torque that fast case output needs, and be sent on spool.
3. a kind of projection screen for automatically adjusting projection ratio according to claim 1, it is characterised in that the frame includes
Outline border and inside casing, the outline border is for accommodating Bian Ping mechanism, and the inside casing is for accommodating curtain.
4. a kind of projection screen for automatically adjusting projection ratio according to claim 1, it is characterised in that the projection screen is also
Including curtain fixed mechanism, the curtain fixed mechanism includes lower fixed frame, upper lacing film and lower lacing film, and the lower fixed frame is fixed
On the wall, the upper end of the curtain is fixed on frame by upper lacing film, and the lower end of the curtain is fixed by lower lacing film for setting
On lower fixed frame.
5. a kind of projection screen for automatically adjusting projection ratio according to claim 1, it is characterised in that the projection screen is also
Including curtain elevating mechanism, the curtain elevating mechanism includes shaft, driving motor and lower axle, and the shaft and driving motor are solid
It is scheduled on frame, the shaft and driving motor are drivingly connected, and the lower axle is fixedly connected with curtain lower end, pass through driving motor
Shaft rotation is driven, and then drives rising or falling for curtain.
6. a kind of projection screen for automatically adjusting projection ratio according to claim 5, it is characterised in that the curtain lifting
Mechanism further includes a plurality of bearings and a plurality of bearing blocks, and the bearing is arranged in bearing block, and the bearing is socketed in and turns
On axis, the bearing is flexibly connected with shaft, and the bearing block is fixedly connected with frame.
7. a kind of projection screen for automatically adjusting projection ratio according to claim 1, it is characterised in that the projection screen is also
Including remote controler, the lifting of black lining or curtain can control by remote controler, remote control mode is RF remote-controlled or wireless flat
Or central control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821363170.6U CN208834091U (en) | 2018-08-22 | 2018-08-22 | A kind of projection screen automatically adjusting projection ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821363170.6U CN208834091U (en) | 2018-08-22 | 2018-08-22 | A kind of projection screen automatically adjusting projection ratio |
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| Publication Number | Publication Date |
|---|---|
| CN208834091U true CN208834091U (en) | 2019-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821363170.6U Active CN208834091U (en) | 2018-08-22 | 2018-08-22 | A kind of projection screen automatically adjusting projection ratio |
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| CN (1) | CN208834091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111381431A (en) * | 2020-05-11 | 2020-07-07 | 江苏舜合物联网科技有限公司 | Method for realizing synchronous lifting or synchronous translation of projection picture along with rollable screen |
| CN113009767A (en) * | 2021-02-26 | 2021-06-22 | 桐城市湃腾机械设计有限公司 | Collapsible projection curtain |
-
2018
- 2018-08-22 CN CN201821363170.6U patent/CN208834091U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111381431A (en) * | 2020-05-11 | 2020-07-07 | 江苏舜合物联网科技有限公司 | Method for realizing synchronous lifting or synchronous translation of projection picture along with rollable screen |
| CN111381431B (en) * | 2020-05-11 | 2021-04-13 | 江苏舜合物联网科技有限公司 | Method for realizing synchronous lifting or synchronous translation of projection picture along with rollable screen |
| CN113009767A (en) * | 2021-02-26 | 2021-06-22 | 桐城市湃腾机械设计有限公司 | Collapsible projection curtain |
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