CN102608856B - Rear-projection box test board and optical debugging device for front maintenance rear-projection box - Google Patents
Rear-projection box test board and optical debugging device for front maintenance rear-projection box Download PDFInfo
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- CN102608856B CN102608856B CN 201210085656 CN201210085656A CN102608856B CN 102608856 B CN102608856 B CN 102608856B CN 201210085656 CN201210085656 CN 201210085656 CN 201210085656 A CN201210085656 A CN 201210085656A CN 102608856 B CN102608856 B CN 102608856B
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- projection box
- rear projection
- fixed frame
- test board
- frame
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Abstract
The invention relates to a rear-projection box test board which comprises a pressing strip, a fixing frame, a testing curtain and a positioning structure, wherein the pressing strip is pressed on four edges of the testing curtain, and the testing curtain is locked on the fixing frame through bolts; and the positioning structure is arranged on the fixing frame and is used for fixing the fixing frame on side frames of a box body of the rear-projection box. The invention also relates to an optical debugging device for a front maintenance rear-projection box. The optical debugging device comprises at least four rear-projection box test boards, wherein the test boards are mounted on the four side frames of the box body of the rear-projection box; and the length of at least two opposite rear-projection box test boards is the same as that of the side frames of the box body of the rear-projection box. The debugging device is simple in structure, convenient to mount and detach and high in debugging stability, and the debugging difficulty of the rear-projection box is radically solved.
Description
Technical field
The present invention relates to the rear projection box screen and adjust field, particularly a kind of rear projection box test board, and a kind of front maintenance back projection case optics debugging apparatus.
Background technology
Existing traditional rear maintenance back projection case takes up room larger, the space difference of Gong installations provided due to each client, space, some user meetings chamber is less, need design a kind of can screen front safeguarded and the rear projection box debugged to meet this generic request.
When the movement in general rear projection box projects image onto screen, image all can have certain skew, usually need position to image, shape etc. to carry out suitable adjustment, need the devices such as catoptron and six-axial adjustment frame are adjusted, but front maintenance back projection casing engineering staff after the screen closure can't enter casing, carry out adjusting operation.
Front maintenance back projection case image debugging scheme in the market is mainly the electronic adjusting mechanism of the interim installation of each Nodes adopted in casing, can after the screen closure, by the motion of controlling each motor, adjust the position of each node, thereby reach the purpose of debugging image.The shortcoming of this class scheme is complex structure, needs a plurality of electric devices are installed, and installing/dismounting is loaded down with trivial details, is unfavorable for the adjusting repeatedly of image; The production cost of old device is higher, the reliability deficiency.May affect in addition the stability of image when all electric devices of dismounting, cause image shift, be unfavorable for the accurate location of image.The athletic meeting of motor produces certain impact, also is unfavorable for the stable of image.And the debugging scheme of this rear projection box is fully different from the debugging scheme of traditional rear maintenance back projection case, need retrain the engineering staff and just can meet the demands.
Summary of the invention
The object of the invention is to overcome shortcomings and deficiencies of the prior art, a kind of rear projection box test board of simple in structure, easy installation and removal be provided, so provide simple to operate, front maintenance back projection case optics debugging apparatus that stability is high.
Technical scheme of the present invention is as follows:
A kind of rear projection box test board, comprise press strip, fixed frame, test curtain and location structure;
Described press strip is pressed on four limits of described test curtain, and by screw, described test curtain is locked on described fixed frame;
Described location structure is arranged on described fixed frame, for described fixed frame being fixed on to the casing frame of rear projection box.
In embodiment, described location structure comprises bolt and retainer nut therein, described bolt link through the casing frame of described fixed frame and rear projection box after the connection anti-loose nut.
In embodiment, described fixed frame is rectangular frame, by four skeletons, is spliced to form, and between two described skeletons, by screw lock, is connected or is fixedly connected with by corner brace therein.
In embodiment, described fixed frame is spliced to form by two rectangular frames therein, and each described rectangular frame is spliced to form by four skeletons, between two described skeletons, by screw lock, is connected or is fixedly connected with by corner brace; A wherein skeleton of two described rectangular frames is connected and locks by described bolt.
Therein in embodiment, pressing plate in the middle of described rear projection box test board also comprises, described in the middle of pressing plate be arranged between described press strip and described test curtain, by screw and bolt, described test curtain is locked on the skeleton that two described rectangular frames are adjacent; The position at described press strip pressing plate two ends in the middle of correspondence is described is provided with screw, by screw, described press strip and described middle pressing plate is fixed on the skeleton that described two rectangular frames are adjacent.
In embodiment, described rear projection box test board also includes a plurality of register pins therein, and described register pin, through described press strip, is fixed on described press strip on described fixed frame.
In embodiment, described rear projection box also comprises limiting plate therein, described limiting plate by screw lock on described fixed frame, for the position of the casing frame that limits described fixed frame and described rear projection box.
A kind of front maintenance back projection case optics debugging apparatus, comprise at least four described rear projection box test boards, each described test board is for being arranged on four frames of casing of rear projection box, wherein, the length of at least two relative described rear projection box test boards is identical with the frame length of the casing of rear projection box.
The present invention has the following advantages with respect to prior art:
(1) this debugging apparatus consists of a plurality of rear projection box test boards, be arranged on the casing frame of rear projection box, this rear projection box test plate structure is simple, image projection is behind the scenes in test, the engineering staff can stretch out one's hand the projector of back projection box body inside is debugged, projected image is pulled down this device after determining, the screen of closed rear projection box completes debug process, thoroughly solves rear projection box and adjusts a difficult problem.
(2) this debugging apparatus only need reverse bolt and can complete installation and removal, and simple to operate, picture steadiness is high, is conducive to the accurate location of image, and without the engineering staff being done to complicated technical training.
(3) this debugging apparatus is comprised of common section bar and material, cheap, is conducive to promote.
The accompanying drawing explanation
Fig. 1 is rear projection box test board of the present invention structural representation in one embodiment.
Fig. 2 is rear projection box test board of the present invention structure explosive view in one embodiment.
Fig. 3 is rear projection box test board of the present invention structural representation in another embodiment.
Fig. 4 is rear projection box test board of the present invention structure explosive view in another embodiment.
Fig. 5 is maintenance back projection case optics debugging apparatus structural representation in one embodiment before the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
As shown in Figure 1, be the structural representation of rear projection box test board of the present invention in a preferred embodiment, Fig. 2 is its explosive view;
This rear projection box test board 10, comprise press strip 100, fixed frame 110, test curtain 120 and location structure 130;
Described press strip 100 is pressed on four limits of described test curtain 120, and by screw 101, described test curtain 120 is locked on described fixed frame 110;
Described location structure 130 is arranged on described fixed frame 110, for described fixed frame 110 being fixed on to the casing frame of rear projection box.
In the present embodiment, described location structure 130 comprises bolt 131 and retainer nut 132, after the casing frame of described bolt 131 links through described fixed frame 110 and rear projection box, is connected with retainer nut 133.
Described fixed frame 110 is rectangular frame 111, by four skeletons 112, is spliced to form, and between two described skeletons 111, by screw lock, is connected or is fixedly connected with by corner brace 114.
During installation by the casing of fixed frame 110 and rear projection box wherein frame on one side align, be connected with retainer nut 133 after the casing frame of bolt 131 through fixed frame 110 and rear projection box, only need twist this bolt while completing the rear dismounting of debugging, simple to operate, during debugging, projected image stability is high.
As shown in Figure 3, be the structural representation of rear projection box test board of the present invention in another preferred embodiment, Fig. 4 is its explosive view;
Described fixed frame 110 is spliced to form by two rectangular frames 111, and each described rectangular frame 111 is spliced to form by four skeletons 112, between two described skeletons 112, by screw 113 lockings, is connected or is fixedly connected with by corner brace 114; Corner brace 114 is fixed on skeleton 112 by screw 115, for two adjacent skeletons 112, firmly splices; A wherein skeleton 112 of two described rectangular frames 111 is connected and locks by described bolt 131.
During installation, wherein a rectangular frame 111 abuts against the casing frame outside of rear projection box, another rectangular frame 111 abuts against the casing scuncheon of rear projection box, the edge, one side of middle pressing plate 140 aligns with the casing frame of rear projection box, bolt 131 is successively through wherein after skeleton 111, casing frame and another skeleton 111, being connected with retainer nut 132, respectively there is a rectangular frame 111 in the outside in casing, the stability of projected image while guaranteeing the balance of this rear projection box test board 10 and debugging.
This rear projection box test board 10 also includes a plurality of register pins 150, and described register pin 150, through described press strip 100, is fixed on described press strip 100 on described fixed frame 110, prevents that press strip 100 and test curtain 120 from occurring loosening.
This rear projection box test board 10 also comprises limiting plate 160, and described limiting plate 160 is locked on described fixed frame 110 by screw 161, for limiting the position of described fixed frame 110 and the casing frame of described rear projection box.
Front maintenance back projection case optics debugging apparatus of the present invention, comprise at least four described rear projection box test boards 10, each described test board 10 is for four frames of the casing that is arranged on rear projection box, but independent assortment rear projection box test board of the present invention in the reality debugging, but wherein the length of at least two relative described rear projection box test boards 10 is identical with the frame length of the casing of rear projection box, to guarantee the degree of accuracy of projected image debugging.As shown in Figure 5, it is the structural representation of maintenance back projection case optics debugging apparatus before the present invention, four described rear projection box test boards 10 are arranged on the casing frame of rear projection box 20, the test curtain of rear projection box test board 10 is screen as an alternative, image when debugging engineering staff stretches out one's hand and enters rear projection box inside and adjusted, and thoroughly solves rear projection box and adjusts a difficult problem.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. a rear projection box test board, is characterized in that, comprises press strip, fixed frame, test curtain and location structure;
Described press strip is pressed on four limits of described test curtain, and by screw, described test curtain is locked on described fixed frame;
Described location structure is arranged on described fixed frame, for described fixed frame being fixed on to the casing frame of rear projection box.
2. rear projection box test board according to claim 1, is characterized in that, described location structure comprises bolt and retainer nut, after the casing frame of described bolt link through described fixed frame and rear projection box, is connected described retainer nut.
3. rear projection box test board according to claim 1, is characterized in that, described fixed frame is rectangular frame, by four skeletons, is spliced to form, and between two described skeletons, by screw lock, is connected or is fixedly connected with by corner brace.
4. rear projection box test board according to claim 2, it is characterized in that, described fixed frame is spliced to form by two rectangular frames, and each described rectangular frame is spliced to form by four skeletons, between two described skeletons, by screw lock, is connected or is fixedly connected with by corner brace; A wherein skeleton of two described rectangular frames is connected and locks by described bolt.
5. rear projection box test board according to claim 4, it is characterized in that, pressing plate in the middle of also comprising, described in the middle of pressing plate be arranged between described press strip and described test curtain, by screw and bolt, described test curtain is locked on the skeleton that two described rectangular frames are adjacent; The position at described press strip pressing plate two ends in the middle of correspondence is described is provided with screw, by screw, described press strip and described middle pressing plate is fixed on the skeleton that described two rectangular frames are adjacent.
6. rear projection box test board according to claim 1, is characterized in that, also includes a plurality of register pins, and described register pin, through described press strip, is fixed on described press strip on described fixed frame.
7. rear projection box test board according to claim 1, is characterized in that, also comprises limiting plate, described limiting plate by screw lock on described fixed frame, for the position of the casing frame that limits described fixed frame and described rear projection box.
8. maintenance back projection case optics debugging apparatus before a kind, it is characterized in that, comprise at least four rear projection box test boards as described as claim 1～7 any one, each described test board is for being arranged on four frames of casing of rear projection box, wherein, the length of at least two relative described rear projection box test boards is identical with the frame length of the casing of rear projection box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210085656 CN102608856B (en) | 2012-03-27 | 2012-03-27 | Rear-projection box test board and optical debugging device for front maintenance rear-projection box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210085656 CN102608856B (en) | 2012-03-27 | 2012-03-27 | Rear-projection box test board and optical debugging device for front maintenance rear-projection box |
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| Publication Number | Publication Date |
|---|---|
| CN102608856A CN102608856A (en) | 2012-07-25 |
| CN102608856B true CN102608856B (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210085656 Expired - Fee Related CN102608856B (en) | 2012-03-27 | 2012-03-27 | Rear-projection box test board and optical debugging device for front maintenance rear-projection box |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0556375A (en) * | 1991-07-25 | 1993-03-05 | Hitachi Ltd | Combinational type rear projection type television |
| CN101236352A (en) * | 2008-03-03 | 2008-08-06 | 广东威创视讯科技股份有限公司 | Projection screen |
| CN201503532U (en) * | 2009-06-04 | 2010-06-09 | 广东威创视讯科技股份有限公司 | Integrated rear projection case |
| CN201886271U (en) * | 2010-10-29 | 2011-06-29 | 广东威创视讯科技股份有限公司 | Ultrathin rear projection cube screen adjusting device |
| CN202057948U (en) * | 2011-05-20 | 2011-11-30 | 北京中泰东邦科技有限责任公司 | Assembly type rear projection box |
| CN202512359U (en) * | 2012-03-27 | 2012-10-31 | 广东威创视讯科技股份有限公司 | Rear projection box test board and front maintenance rear projection box optical debugging device |
-
2012
- 2012-03-27 CN CN 201210085656 patent/CN102608856B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0556375A (en) * | 1991-07-25 | 1993-03-05 | Hitachi Ltd | Combinational type rear projection type television |
| CN101236352A (en) * | 2008-03-03 | 2008-08-06 | 广东威创视讯科技股份有限公司 | Projection screen |
| CN201503532U (en) * | 2009-06-04 | 2010-06-09 | 广东威创视讯科技股份有限公司 | Integrated rear projection case |
| CN201886271U (en) * | 2010-10-29 | 2011-06-29 | 广东威创视讯科技股份有限公司 | Ultrathin rear projection cube screen adjusting device |
| CN202057948U (en) * | 2011-05-20 | 2011-11-30 | 北京中泰东邦科技有限责任公司 | Assembly type rear projection box |
| CN202512359U (en) * | 2012-03-27 | 2012-10-31 | 广东威创视讯科技股份有限公司 | Rear projection box test board and front maintenance rear projection box optical debugging device |
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| CN102608856A (en) | 2012-07-25 |
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Address after: 510670 Guangdong city of Guangzhou province Kezhu Guangzhou high tech Industrial Development Zone, Road No. 233 Patentee after: Wei Chong group Limited by Share Ltd Address before: 510663 Guangzhou province high tech Industrial Development Zone, Guangdong, Cai road, No. 6, No. Patentee before: Guangdong Weichuangshixun Science and Technology Co., Ltd. |
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Granted publication date: 20131225 Termination date: 20210327 |
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