CN2904030Y - Rear projection large screen display unit box - Google Patents
Rear projection large screen display unit box Download PDFInfo
- Publication number
- CN2904030Y CN2904030Y CN 200620113421 CN200620113421U CN2904030Y CN 2904030 Y CN2904030 Y CN 2904030Y CN 200620113421 CN200620113421 CN 200620113421 CN 200620113421 U CN200620113421 U CN 200620113421U CN 2904030 Y CN2904030 Y CN 2904030Y
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- Prior art keywords
- projector
- frame
- projects
- screw
- base
- 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 - Fee Related
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Abstract
A rear projection large screen display unit case comprises a housing, a baffle, a reflecting mirror device, a projector base and a screen frame. The left end and the right end under the screen frame are respectively provided with an inner hexagon bolt used to adjust the up-down position of the screen frame, making the up-down position adjustment of the screen frame become simple, accurate, and stable. In addition, a pressure spring is arranged the utility model on the upper part of with the purpose of improving the stability when the projector box is adjusted on up- down position, under the control of the spring, make the adjustment of projector position more stable, more accurate.
Description
Technical field
The utility model relates to a kind of back projection display apparatus, is specifically related to a kind of back projection large screen display unit box.
Background technology
Existing back projection large screen display unit box basic structure comprises five parts, and promptly frame, baffle plate, reflector apparatus, projection support, curtain frame are combined into a display unit box.Install by the scene, be combined into giant-screen by several unit boxs.After giant-screen is installed, must carefully adjust, make its picture can be combined into a perfectly integral body casing, curtain frame, reflector apparatus, the projection support of each unit.For the adjustment of curtain frame upper-lower position, traditional method of adjustment is to utilize the jacking block be connected on the frame to adjust, and jacking block is prone to tilt problem when mentioning act frame, and effect is adjusted in influence.In addition, wild effect often appears in the adjustment of existing projection support.
The utility model content
In order to overcome adjustment instability, the easy tilt phenomenon of curtain frame that existing back projection large screen display unit box occurs when adjusting, the purpose of this utility model is: a kind of back projection large screen display unit box is provided, this casing is easy to adjust, stable when carrying out the adjustment of act frame and projection support, accurate, effective.
The technical scheme that its technical matters that solves the utility model adopts is as follows:
A kind of back projection large screen display unit box comprises frame, baffle plate, reflector apparatus, projection support and curtain frame.Frame is a box frame; Baffle plate adopts screw to connect and is fastened on the frame, and the back of frame is provided with easy-to-dismount valve, and this valve is connected with frame by elastic lock; The setting at 45 of catoptron and surface level, the upper end of reflector apparatus links to each other by the side shield of two screw rods with the frame upper end, and the lower end of reflector apparatus is connected with the intermediate transverse girder at frame rear portion by two other screw rod; The curtain frame is connected with frame by four screws; The projection support is connected with framework soleplate.Four vertical connecting screw rods are housed on framework soleplate, four slotted holes are arranged on projector's base web joint, during installation it is enclosed within on the screw rod of base plate, connect by nut; Projector's base lower skateboard is connected with the projector base by four screws; Projector's box body is connected with projector base lower skateboard by four screw rods, respectively adorns a knurled nut, the web joint of clamping projector box body between the knurled nut, pressure spring of suit thereon up and down at this screw rod; Two ends, the left and right sides are provided with a socket head cap screw respectively below the curtain frame; In projector of projector's inner-box device, the light source of projector projects on the catoptron back reflection to screen by projector lens; The lower end that light path A projects catoptron by camera lens change after the direction again through light path B project screen bottom: light path C projects catoptron by camera lens upper end change direction after again on light path D projects screen.
The beneficial effects of the utility model are:
1, the adjustment of curtain frame upper-lower position is simple, accurate, stable
Curtain frame of the present utility model is connected with frame by four screws, can adjust the front and back position of act frame simultaneously; Two ends, the left and right sides are provided with a socket head cap screw respectively below the curtain frame, are used to adjust the upper-lower position of act frame, and the giant-screen that several unit boxs are combined into coexists in the plane, the slit conformance with standard of adjacent two interludes.Aspect the upper-lower position of adjusting the curtain frame, traditional method of adjustment of past is to utilize the jacking block that is connected on the frame to adjust, and jacking block is prone to tilt problem, influence adjustment effect when mentioning act frame.Two ends, the left and right sides are provided with a socket head cap screw respectively below the present curtain of the utility model frame, be used to adjust the upper-lower position of act frame, compare with jacking block, when it adjusts curtain frame height, the curtain frame that can avoid causing because of the tilt problem of jacking block after stressed is adjusted wild effect, the adjustment of curtain frame upper-lower position is simple, accurately, stable.
2, the projection support is easy to adjust stable
The utility model projection support is connected with framework soleplate, four vertical connecting screw rods are housed on framework soleplate, four slotted holes are arranged on projector's base web joint, during installation it is enclosed within on the screw rod of base plate, connect by nut, unclamp the position that nut can vertically be adjusted projector; Projector's base lower skateboard is connected with the projector base by four screws, unclamps screw and can laterally adjust the projector position.Projector's box body is connected with projector base lower skateboard by four screw rods, respectively adorn a knurled nut up and down at this screw rod, the web joint of clamping projector box body between the knurled nut, pressure spring of suit thereon, the rotation knurled nut, can adjust the position of projector up and down, under the pressure control of spring, make the adjustment of projector's upper-lower position stable, accurately.
Description of drawings
Fig. 1 is the structural representation of the utility model back projection large screen display unit box
Among the figure, I. frame II. baffle plate III. reflector apparatus IV. projection support V. curtain frame 1. socket head cap screws 3,15. screws 4,9. connecting screw rod 5,8,16. nuts 6,10,13. knurled nuts 7,11. valve 12. pressure springs 14. connecting screw rods 17. guider screws 18. projector lens A, B, C, D. light path
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Figure 1 shows that an embodiment of the utility model back projection large screen display unit box, its basic structure comprises five parts: frame I, baffle plate II, reflector apparatus III, projection support IV, curtain frame V.Frame I is the skeleton of projector's casing, is processed by aluminium alloy extrusions.Baffle plate II is the baffle plate of projector's casing, has 10 plate faces, and the method that adopts screw to connect is fixed on the frame, is used for decorating and blocking extraneous light, and baffle plate all adopts the thick high-quality cold-rolled steel sheet of 1.0-1.2mm to process.Detachable mounted valve 7,11 is equipped with in the casing back, and valve adopts elastic lock to be connected with casing, and easy accessibility is beneficial to and adjusts and the interior device of service kit.In order to reduce the depth size of casing, in casing, be provided with reflector apparatus III, can make the box house compact in design, reduce volume, rational in infrastructure.Catoptron adopts the preceding coated glass mirror of high-quality, and mirror holder adopts high-quality cold-rolled steel sheet or aluminium alloy extrusions finishing to form.The setting at 45 of catoptron and surface level, the upper end of reflector apparatus links to each other by the side shield of two screw rods 4 with the frame upper end, and the lower end of reflector apparatus is connected with the intermediate transverse girder at frame rear portion by two screw rods 9.Can adjust height, angle and the corner location of reflector apparatus by rotating knurled nut 6,10 and nut 5,8.Projection support IV is used to install projector, and the projection support is made up of projector's box body, projector's lid, projector's base, projector's base lower skateboard, forms by cold-rolled steel sheet finishing.The projection support is connected with framework soleplate, four vertical connecting screw rods are housed on framework soleplate, four slotted holes are arranged on projector's base web joint, during installation it is enclosed within on the screw rod of base plate, connect by nut 16, unclamp the position that nut can vertically be adjusted projector; Projector's base lower skateboard is connected with the projector base by four screws 15,17, unclamps screw and can laterally adjust the projector position.Projector's box body is connected with projector base lower skateboard by four screw rods 14, respectively adorn a knurled nut 13 up and down at screw rod 14, the web joint of clamping projector box body between the knurled nut 13, pressure spring 12 of suit is used to improve the stability when adjusting projector's box body upper-lower position thereon.Rotate the knurled nut, can adjust the position of projector up and down.The adjustment of whole projector base is very convenient, can be to any one direction, promptly all around, adjust up and down, under the pressure control of spring, make the adjustment of projector position stable, accurately.In projector of projector's inner-box device, the light source of projector projects on the catoptron back reflection to screen by projector lens 18.Light path A projects the screen bottom through light path B afterwards again by the lower end change direction that camera lens projects catoptron; Light path C changes direction afterwards again on light path D projects screen by the upper end that camera lens projects catoptron.Curtain frame V is used for fixing projection screen, and the material of curtain frame is the fine aluminum alloy profile, forms through finishing.The curtain frame is connected with frame by four screws 3, can adjust the front and back position of act frame simultaneously; Two ends, the left and right sides are provided with a socket head cap screw 1 respectively below the curtain frame, are used to adjust the upper-lower position of act frame.
Claims (1)
1, a kind of back projection large screen display unit box comprises frame, baffle plate, reflector apparatus, projection support and curtain frame, and frame is a box frame; Baffle plate adopts screw to connect and is fastened on the frame, and the back of frame is provided with easy-to-dismount valve, and this valve is connected with frame by elastic lock; The setting at 45 of catoptron and surface level, the upper end of reflector apparatus links to each other by the side shield of two screw rods (4) with the frame upper end, and the reflector apparatus lower end is connected with the intermediate transverse girder at frame rear portion by two screw rods (9); The curtain frame is connected with frame by four screws (3); The projection support is connected with framework soleplate, it is characterized in that: four vertical connecting screw rods are housed on framework soleplate, four slotted holes are arranged on projector's base web joint, during installation it is enclosed within on the screw rod of base plate, connect by nut (16); Projector's base lower skateboard is connected with the projector base by screw (15), (17); Projector's box body is connected with projector base lower skateboard by four screw rods (14), respectively adorns a knurled nut, the web joint of clamping projector box body between the knurled nut, pressure spring of suit thereon up and down at screw rod (14); Two ends, the left and right sides are provided with a socket head cap screw respectively below the curtain frame; In projector of projector's inner-box device, the light source of projector projects on the catoptron back reflection to screen by projector lens (18); Light path A projects the screen bottom through light path B afterwards again by the lower end change direction that camera lens projects catoptron; Light path C changes direction afterwards again on light path D projects screen by the upper end that camera lens projects catoptron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620113421 CN2904030Y (en) | 2006-04-30 | 2006-04-30 | Rear projection large screen display unit box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620113421 CN2904030Y (en) | 2006-04-30 | 2006-04-30 | Rear projection large screen display unit box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2904030Y true CN2904030Y (en) | 2007-05-23 |
Family
ID=38079444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620113421 Expired - Fee Related CN2904030Y (en) | 2006-04-30 | 2006-04-30 | Rear projection large screen display unit box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2904030Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749798A (en) * | 2012-07-11 | 2012-10-24 | 南京美乐影视科技有限公司 | Back projection reflecting system fixing device |
| CN104035268A (en) * | 2013-03-07 | 2014-09-10 | 上海曼恒数字技术有限公司 | Projection apparatus and projection system |
| CN104035267A (en) * | 2013-03-07 | 2014-09-10 | 上海曼恒数字技术有限公司 | Projection system |
| CN104103223A (en) * | 2014-08-05 | 2014-10-15 | 广西佳微电子科技有限公司 | Portable advertising campaign box |
| CN109142380A (en) * | 2018-09-19 | 2019-01-04 | 广州视源电子科技股份有限公司 | Fault detection method, device and system of circuit board |
-
2006
- 2006-04-30 CN CN 200620113421 patent/CN2904030Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749798A (en) * | 2012-07-11 | 2012-10-24 | 南京美乐影视科技有限公司 | Back projection reflecting system fixing device |
| CN104035268A (en) * | 2013-03-07 | 2014-09-10 | 上海曼恒数字技术有限公司 | Projection apparatus and projection system |
| CN104035267A (en) * | 2013-03-07 | 2014-09-10 | 上海曼恒数字技术有限公司 | Projection system |
| CN104035268B (en) * | 2013-03-07 | 2016-03-30 | 上海曼恒数字技术股份有限公司 | A kind of projection arrangement and optical projection system |
| CN104035267B (en) * | 2013-03-07 | 2016-03-30 | 上海曼恒数字技术股份有限公司 | A kind of optical projection system |
| CN104103223A (en) * | 2014-08-05 | 2014-10-15 | 广西佳微电子科技有限公司 | Portable advertising campaign box |
| CN109142380A (en) * | 2018-09-19 | 2019-01-04 | 广州视源电子科技股份有限公司 | Fault detection method, device and system of circuit board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070523 Termination date: 20140430 |