CN104455984B - A kind of screen level degree adjusting mechanism and projection display equipment - Google Patents
A kind of screen level degree adjusting mechanism and projection display equipment Download PDFInfo
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- CN104455984B CN104455984B CN201410717078.5A CN201410717078A CN104455984B CN 104455984 B CN104455984 B CN 104455984B CN 201410717078 A CN201410717078 A CN 201410717078A CN 104455984 B CN104455984 B CN 104455984B
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- adjusting mechanism
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Abstract
The present invention discloses a kind of screen level degree adjusting mechanism and projection display equipment, relates to display technique field, for solving existing screen level degree adjusting mechanism complex structure, taking up room large and be unfavorable for the problem that screen slimming designs.Described screen level degree adjusting mechanism comprises: be arranged on the standard on the screen back side and back shaft; Be sleeved on the cam on back shaft, cam is provided with multiple lock hole, and described multiple lock hole is spaced on the circular arc being the center of circle with the axle center of back shaft; To be located on the screen back side and pilot hole that can be corresponding with arbitrary lock hole; Intert in a lock hole and pilot hole with the stop pin that cam is locked; And the back up pad be arranged on screen support body, the upper surface of back up pad contacts to support described cam with the contoured surface of cam.Screen level degree adjusting mechanism provided by the invention is for adjusting levelness when screen is mounted on screen support body.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of screen level degree adjusting mechanism and projection display equipment.
Background technology
Ultrashort burnt laser television is the advantage such as colour gamut is wide, brightness is high, long service life, energy saving standard and obtain develop rapidly because having.Ultrashort burnt laser television comprises screen (firmly shielding) and laser instrument, and during use, screen is mounted on wall usually, and the laser that laser instrument sends is injected in spectators' eye along the light path of setting after screen reflection, thus produces image.
In order to reach preferably display effect, there is higher requirement to the flatness of screen and levelness, in prior art, usually carrying out support screen by high strength backboard, to make screen, there is higher flatness; Automatically adjust the relative position between laser instrument and screen by the screen level degree adjusting mechanism with five axial adjustment knobs, thus automatically change the levelness of screen.But, above-mentioned five axial adjustment knobs need with multiple drive motor and multiple position-detection sensor with the use of, make the device of screen level degree adjusting mechanism more, complex structure, and the space taken is comparatively large, cannot meet screen slimming designing requirement.
Summary of the invention
The object of the present invention is to provide a kind of screen level degree adjusting mechanism and projection display equipment, the structure of this screen level degree adjusting mechanism is simple, take up room little, be beneficial to screen slimming design.
To achieve these goals, the invention provides following technical scheme:
A kind of screen level degree adjusting mechanism, comprising:
To be arranged on the screen back side and the standard that can be connected with screen support body pivotable;
Be arranged on the back shaft on the screen back side, and described back shaft and described standard are positioned at the both sides of the vertical center line of screen;
Be sleeved on the cam on described back shaft, described cam is provided with multiple lock hole, and described multiple lock hole is spaced on the circular arc being the center of circle with the axle center of described back shaft;
To be located on the screen back side and pilot hole that can be corresponding with arbitrary described lock hole;
Intert in a described lock hole and described pilot hole with the stop pin that described cam is locked;
And the back up pad be arranged on screen support body, the upper surface of described back up pad contacts to support described cam with the contoured surface of described cam.
Preferably, described multiple lock hole is spaced the circular arc being the center of circle with the axle center of described back shaft is first-class.
Preferably, described cam be provided with respectively with multiple lock hole multiple scale marker one to one.
Preferably, described pilot hole is threaded hole, and described stop pin is screw.
Further, described cam is eccentric wheel or oval cam.
Preferably, the contoured surface along the circumference of described cam, described cam is provided with annular groove, and described back up pad is provided with the projection stretched in described annular groove.
Further, described standard is change gear, and described change gear is provided with accommodation hole, and when being mounted on screen support body by screen, described change gear is hung over by described accommodation hole on the support column that is fixedly arranged on screen support body.
The present invention additionally provides a kind of projection display equipment simultaneously, comprising: screen, is arranged at the back side of described screen, screen level degree adjusting mechanism described at least one technique scheme.
Preferably, the quantity two of described screen level degree adjusting mechanism, described in one of them, the upper rear portion of described screen is located at by screen level degree adjusting mechanism, and described in another, the lower backside of described screen is located at by screen level degree adjusting mechanism.
Further, above-mentioned projection display equipment also comprises: be attached at least one iron plate on the back side of described screen, and can be adsorbed on the multiple magnetic pads on each described iron plate.
In screen level degree adjusting mechanism provided by the invention, due to have employed can around back shaft rotate cam, supporting cam wheel back up pad and can relative screen supporter rotate standard, and cam be provided with along setting circular arc arrangement multiple lock holes, be provided with on the back side of screen can be just right with each lock hole respectively pilot hole; Cam to be turned an angle and by after stop pin and just right pilot hole and lock hole locking around back shaft, the region of the contoured surface of cam and the contact of back up pad changes, therefore, the level height that one end of screen is corresponding different can be made after different lock holes is locked, thus make one end (near the cam) other end (near standard) rising or decline relatively of screen, and then change the levelness of screen; Compared to screen level degree adjusting mechanism of the prior art, the structure of screen level degree adjusting mechanism provided by the invention is simpler, and because not needing multiple sensor to detect and the driving of multiple motor, therefore take up room little, be beneficial to screen slimming design.
In addition, multiple lock holes on cam are designed to be spaced along on the circular arc being the center of circle with the axle center of back shaft, often change a lock hole position, compared to the arrangement mode of lock hole upper and lower in prior art, technical solution of the present invention regulates step-length to reduce, be beneficial to the Serial regulation realizing screen level degree, thus improve Adjustment precision.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is structural representation when screen level degree adjusting mechanism that the embodiment of the present invention provides is arranged on the screen back side;
Fig. 2 is the enlarged drawing of a kind of cam embodiment in Fig. 1;
Fig. 3 is the enlarged drawing of another kind of cam embodiment in Fig. 1;
Fig. 4 is the enlarged drawing of change gear embodiment in Fig. 1.
Reference numeral:
10-screen, 20-standard, 21-accommodation hole,
30-cam, 31-back shaft, 32-lock hole,
33-threaded hole, 34-pilot hole, 35-stop pin,
36-scale marker, 37-screw, 40-iron plate,
50-magnetic pad.
Embodiment
In order to further illustrate the screen level degree adjusting mechanism and projection display equipment that the embodiment of the present invention provides, be described in detail below in conjunction with Figure of description.
Refer to Fig. 1 and Fig. 2, the screen level degree adjusting mechanism that the embodiment of the present invention provides comprises: standard 20, back shaft 31, cam 30, stop pin 35 and back up pad (not shown in FIG.), wherein, standard 20 and back shaft 31 are arranged on screen 10 back side, and are positioned at the both sides of the vertical center line of screen 10; Cam 30 is sleeved on back shaft 31, and can rotate around back shaft 31, and back up pad is arranged on screen support body, and the upper surface of back up pad and the contoured surface of cam 30 offset; Cam 30 is provided with multiple lock hole 32, multiple lock hole 32 is spaced on the circular arc being the center of circle with the axle center of back shaft 31, screen 10 back side is provided with can be corresponding with arbitrary lock hole 32 pilot hole 34, when cam 30 rotates, each lock hole 32 can be just right with pilot hole 34 respectively, so that stop pin 35 inserts in pilot hole 34 through lock hole 3, thus is locked by cam 30.
During concrete enforcement, screen support body is generally wall or bracing frame, for convenience, and hereafter will for screen support body for wall be described.Screen 10 is mounted on after on wall, standard 20 can rotate by opposing sides, the version of standard 20 has multiple, such as, standard 20 is reference axis, and corresponding wall is provided with the pivoting hole mated with this reference axis, when screen 10 is mounted on wall, this reference axis injects in pivoting hole, and the hole that can be pivoted relative to each other is rotated; And for example, refer to Fig. 4, standard 20 is change gear, and this change gear has pilot hole 21, when installing screen 10, coordinates to come support screen 10 with the support bar be fixed on wall.Be understandable that, said reference part can also for being directly opened in the pilot hole 21 on screen 10 back side.
Cam 30 is arranged on screen 10 back side by back shaft 31, and back shaft 31 and standard 20 are arranged in the symmetria bilateralis of the vertical center line of screen 10, preferably, and two angular zones of back shaft 31 and standard 20 screen 10 upper rear portion.Wall arranges the support bar that can insert in accommodation hole 21, back up pad is arranged on wall, then, standard 20 is sleeved on support bar, cam 30 is placed in the top of back up pad, the contoured surface of cam 30 and the upper surface of back up pad offset, and cam 30 is locked in one of them lock hole 32 position corresponding with pilot hole 34 by stop pin 35, thus are mounted on wall by screen 10; Then, front viewing screen 10 whether level, when finding screen 10 relative level face tilt, the vergence direction of record screen 10 and general angle of inclination; Then screen 10 is taken off from wall, according to vergence direction and the general angle of inclination of the screen 10 of above-mentioned record, cam 30 is turned an angle according to respective direction, and by stop pin 35, cam 30 is relocked; Then, then screen 10 is mounted on wall, again watches screen 10 whether level; So repeat several times, just can complete Level-adjusting when screen is mounted on wall.
From technique scheme, due to have employed can around back shaft 31 rotate cam 30, supporting cam wheel 30 back up pad and can relative screen supporter rotate standard 20, and cam 20 be provided with along setting circular arc arrangement multiple lock holes 32, be provided with on screen 10 back side can be just right with each lock hole 32 respectively pilot hole 34; Cam 30 is turned an angle and after being locked by stop pin 35 and just right pilot hole 34 and lock hole 32 around back shaft 31, the region of the contoured surface of cam 30 and the contact of back up pad changes, therefore, the level height that one end of screen 10 can be made corresponding different after different lock holes 32 is locked, thus make one end (near the cam) other end (near standard) rising or decline relatively of screen 10, and then change the levelness of screen 10; Compared to screen level degree adjusting mechanism of the prior art, the structure of screen level degree adjusting mechanism provided by the invention is simpler, and because not needing multiple sensor to detect and the driving of multiple motor, therefore take up room little, be beneficial to screen 10 slimming design.In addition, because the multiple lock holes 32 on cam 30 being designed to be spaced along on the circular arc being the center of circle with the axle center of back shaft 31, often change a lock hole position, compared to the arrangement mode of lock hole upper and lower in prior art, technical solution of the present invention regulates step-length to reduce, be beneficial to the Serial regulation realizing screen 10 levelness, thus improve Adjustment precision.In addition.Simultaneously by the contoured surface of back up pad supporting cam wheel 30 in technical solution of the present invention, and use stop pin 35 to lock lock hole 32 to fix support screen 10, add screen 10 regulate after fixing reliability.
It is worth mentioning that, the contoured surface shape and size of above-mentioned Adjustment precision and cam 30, and the spacing between each lock hole 32, the arc radius size residing for each lock hole 32 etc. are relevant.
Please continue to refer to Fig. 2, in order to the distance that the relative other end in one end of screen 10 after intuitively obtaining each adjustment rises or declines, preferably, cam 30 be provided with respectively with multiple lock hole 32 multiple scale marker 36 one to one.For example, on cam 30 in fig. 2, the circular arc being the center of circle with the axle center of back shaft 31 is arranged at intervals with nine lockings empty 32, the scale marker 36 of several 5th lock hole 32 correspondence is labeled as 0 from top to bottom, the scale marker 36 being positioned at lock hole 32 correspondence on the upside of this lock hole 32 is labeled as 2mm, 4mm, 6mm and 8mm successively, and the scale marker 36 being positioned at lock hole 32 correspondence on the downside of this lock hole 32 is labeled as-2mm ,-4mm ,-6mm and-8mm successively; Go forward screen 10 is mounted on wall, stop pin 35 interts and to be locked by cam 30 in a lock hole 32, after screen 10 is mounted on the vergence direction and general angle of inclination obtaining screen 10 after on wall, screen 10 is taken off from wall, take off stop pin 35 to be unlocked by cam 30, then according to vergence direction and the general angle of inclination of screen 10, make cam 30 rotate certain angle according to corresponding direction, and then again cam 30 is locked by stop pin 35.Owing to being provided with scale marker 36 on cam 30, after therefore adjusting cam 30 at every turn, the distance that the relative other end in one end that can obtain screen 10 intuitively rises or declines, thus adjustment number of times can be reduced, improve regulated efficiency.
Multiple lock holes 32 arrangement mode on the circular arc being the center of circle with the axle center of back shaft 31 be located on cam 30 has multiple, such as, multiple lock hole 32 can be divided into two groups, interval wherein in one group between each lock hole 32 is greater than the interval in another group between each lock hole 32, thus realizes coarse adjustment and fine setting.In order to easy to adjust, preferably, multiple lock hole 32 is spaced the circular arc being the center of circle with the axle center of back shaft 31 is first-class; Design like this, makes cam 30 often turn over a scale around back shaft 31, and the distance risen relative to the other end or decline in one end of screen 10 is identical, thus can reduce adjustment number of times, improves regulated efficiency.
In the specific implementation, the version of above-mentioned cam 30 has multiple, such as, as shown in Figure 2, cam 30 be contoured surface relative to the asymmetrical oblong-shaped disc of the centre of gyration, namely cam 30 is oval cam.In order to reduce costs, preferably, cam 40 is the eccentric wheel shown in Fig. 3.In order to prevent causing cam 30 to unlock because of stop pin 35 accidental, preferably, pilot hole 34 is threaded hole, and stop pin 35 is screw; During locking cam 30, stop pin 35 is threaded with pilot hole 34 through a lock hole, thus can prevent stop pin 35 accidental.
Be mounted on stability on wall to improve screen 10, preferably, the contoured surface of cam 30 is provided with annular groove, and back up pad is provided with the projection stretched in annular groove.Design like this, the projection utilizing this to cooperatively interact and annular groove can prevent screen 10 from coming off, thus improve screen 10 and be mounted on stability on wall.
Please continue to refer to Fig. 1, the embodiment of the present invention additionally provides a kind of projection display equipment, comprising: screen 10, is arranged at the back side of screen 10, screen level degree adjusting mechanism that at least one technique scheme is carried.The principle of work of screen level degree adjusting mechanism and acquired beneficial effect, describe above, thus repeat no more.
Please continue to refer to Fig. 1, in a preferred embodiment, the quantity of screen level degree adjusting mechanism two, the upper rear portion of screen 10 is located at by one of them screen level degree adjusting mechanism, and another screen 10 Level-adjusting mechanism is located at the lower backside of screen.Design like this, can make display device turn over turnback and use, namely exchange use up and down.
When screen 10 is mounted on wall, due to the difference of placement location, the relative metope tilt phenomenon of screen may be there is, the verticality of screen is caused to be deteriorated, if and screen 10 taken off reappose, because screen 10 is comparatively large and weight is also comparatively large, reappose more difficult.For this reason, the embodiment of the present invention additionally provides a kind of technical scheme of improvement, on the basis of above-described embodiment, projection display equipment also comprises: be attached at least one iron plate 40 on the back side of screen 10, and can be adsorbed on the multiple magnetic pads 50 on each iron plate 40.During use, wall is also provided with iron plate accordingly, when finding that the verticality of screen is poor, can by improving the verticality of screen 10 to the mode of adding magnetic pad 50 between screen 10 and metope.It is worth mentioning that, the quantity being arranged on the magnetic pad 50 of iron plate 40 quantity on screen 10 back side and interpolation can be selected as required.
It is worth mentioning that, above-mentioned screen level degree adjusting mechanism is not only applicable to the Level-adjusting of the screen to ultrashort burnt laser television, is also applicable to adjust the screen level degree being arranged on other display device on screen support body by the mode mounted.
In the description of above-mentioned embodiment, specific features, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (10)
1. a screen level degree adjusting mechanism, is characterized in that, comprising:
To be arranged on the screen back side and the standard that can be connected with screen support body pivotable;
Be arranged on the back shaft on the screen back side, and described back shaft and described standard are positioned at the both sides of the vertical center line of screen;
Be sleeved on the cam on described back shaft, described cam is provided with multiple lock hole, and described multiple lock hole is spaced on the circular arc being the center of circle with the axle center of described back shaft;
To be located on the screen back side and pilot hole that can be corresponding with arbitrary described lock hole;
Intert in a described lock hole and described pilot hole with the stop pin that described cam is locked;
And the back up pad be arranged on screen support body, the upper surface of described back up pad contacts to support described cam with the contoured surface of described cam.
2. screen level degree adjusting mechanism according to claim 1, is characterized in that, described multiple lock hole is spaced the circular arc being the center of circle with the axle center of described back shaft is first-class.
3. screen level degree adjusting mechanism according to claim 1 and 2, is characterized in that, described cam be provided with respectively with multiple lock hole multiple scale marker one to one.
4. screen level degree adjusting mechanism according to claim 1, is characterized in that, described pilot hole is threaded hole, and described stop pin is screw.
5. screen level degree adjusting mechanism according to claim 1, is characterized in that, described cam is eccentric wheel or oval cam.
6. screen level degree adjusting mechanism according to claim 1 or 5, it is characterized in that, the contoured surface along the circumference of described cam, described cam is provided with annular groove, and described back up pad is provided with the projection stretched in described annular groove.
7. screen level degree adjusting mechanism according to claim 1, it is characterized in that, described standard is change gear, and described change gear is provided with accommodation hole, when being mounted on screen support body by screen, described change gear is hung over by described accommodation hole on the support column that is fixedly arranged on screen support body.
8. a projection display equipment, is characterized in that, comprising: screen, to be arranged on the back side of described screen, at least one as arbitrary in claim 1-7 as described in screen level degree adjusting mechanism.
9. projection display equipment according to claim 8, it is characterized in that, the quantity two of described screen level degree adjusting mechanism, described in one of them, the upper rear portion of described screen is located at by screen level degree adjusting mechanism, and described in another, the lower backside of described screen is located at by screen level degree adjusting mechanism.
10. the projection display equipment stated according to Claim 8, is characterized in that, also comprises: be attached at least one iron plate on the back side of described screen, and can be adsorbed on the multiple magnetic pads on each described iron plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410717078.5A CN104455984B (en) | 2014-11-28 | 2014-11-28 | A kind of screen level degree adjusting mechanism and projection display equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410717078.5A CN104455984B (en) | 2014-11-28 | 2014-11-28 | A kind of screen level degree adjusting mechanism and projection display equipment |
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| CN104455984A CN104455984A (en) | 2015-03-25 |
| CN104455984B true CN104455984B (en) | 2016-03-30 |
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| CN201410717078.5A Active CN104455984B (en) | 2014-11-28 | 2014-11-28 | A kind of screen level degree adjusting mechanism and projection display equipment |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207246682U (en) * | 2016-11-17 | 2018-04-17 | 广州视源电子科技股份有限公司 | Camera support |
| CN108533926A (en) * | 2018-05-23 | 2018-09-14 | 北京小米移动软件有限公司 | Hanging structure and electronic equipment |
| CN113938730B (en) * | 2020-06-29 | 2023-05-05 | 海信视像科技股份有限公司 | Projection assembly correction method of display device and display device |
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| CN200959065Y (en) * | 2006-10-21 | 2007-10-10 | 广州美视晶莹银幕有限公司 | Stand-liftable projection screen |
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| TW201014353A (en) * | 2008-09-19 | 2010-04-01 | Univ Nat Formosa | Hinge adjustment mechanism with omnidirectional view angle |
| CN102466959A (en) * | 2010-11-04 | 2012-05-23 | 亚洲光学股份有限公司 | Inclination angle regulation mechanism for projector |
| CN204240004U (en) * | 2014-11-28 | 2015-04-01 | 海信集团有限公司 | A kind of screen level degree regulating mechanism and projection display |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101078868A (en) * | 2006-05-05 | 2007-11-28 | Csav有限公司 | Adjustable projector mount with quick release device interface |
| CN200959065Y (en) * | 2006-10-21 | 2007-10-10 | 广州美视晶莹银幕有限公司 | Stand-liftable projection screen |
| TW201014353A (en) * | 2008-09-19 | 2010-04-01 | Univ Nat Formosa | Hinge adjustment mechanism with omnidirectional view angle |
| CN102466959A (en) * | 2010-11-04 | 2012-05-23 | 亚洲光学股份有限公司 | Inclination angle regulation mechanism for projector |
| CN204240004U (en) * | 2014-11-28 | 2015-04-01 | 海信集团有限公司 | A kind of screen level degree regulating mechanism and projection display |
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