CN105068371B - Front maintenance back projection scialyscope casing - Google Patents
Front maintenance back projection scialyscope casing Download PDFInfo
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- CN105068371B CN105068371B CN201510484333.0A CN201510484333A CN105068371B CN 105068371 B CN105068371 B CN 105068371B CN 201510484333 A CN201510484333 A CN 201510484333A CN 105068371 B CN105068371 B CN 105068371B
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- 238000012423 maintenance Methods 0.000 title claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 59
- 238000009434 installation Methods 0.000 claims description 20
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000003319 supportive effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention discloses maintenance back projection scialyscope casing before one, feature is: include box frame and for assembling the screen frame of screen assembly, box frame is connected unit with screen frame by two and is connected, each connection unit includes push pedal, air spring and rocker assembly, screen frame is connected with the upper hinge of push pedal, the top of push pedal is provided with air spring, the outfan of air spring is fixing with screen frame to be connected, the bottom of push pedal is hinged with one end of rocker assembly, the other end of rocker assembly is hinged with box frame, the middle part of push pedal is slidably connected with box frame, unlocking mechanism is installed on screen frame, positioning fastener mechanism is installed in push pedal, before and after positioning fastener mechanism, stroke is adjustable, when screen frame closes up, screen frame is locked in push pedal by unlocking mechanism and positioning fastener mechanism respectively；Advantage is: control property good, to screen accurate positioning, cost of manufacture is low.
Description
Technical field
The present invention relates to large screen back projection display field, specifically a kind of before maintenance back projection scialyscope casing, this front maintenance back projection scialyscope casing controllability is good, to screen accurate positioning, and cost of manufacture is low, can be applicable to single screen or folded screen, the convenient front attended operation to body of wall.
Background technology
The display unit body of wall at present large screen back projection display field typically have front maintenance and after safeguard two ways.The advantage of front maintenance is can be in the past in the face of rear projection screen is safeguarded, compared to rear maintenance, front maintenance can save occupation of land space, improves the space availability ratio of display unit body of wall.After installing and using, before needing repairing during maintenance back projection screen, generally before display unit body of wall, screen frame upset is opened.But because display unit body of wall belongs to high-precision product, the required precision to assembling, installing and keep in repair is the highest, should be careful when maintenance, prevent screen collision, rock and impaired deformation.
Existing front maintenance back projection scialyscope casing, structure is more complicated, and after screen closes up and upset is opened, inadequate to the positioning precision of screen, the reliability of location is the highest.Such as, published Chinese patent CN102981353A safeguards switching mechanism before disclosing one, including casing, screen assembly, four-bar mechanism hinge, free location type sliding support and guiding mechanism, screen assembly passes through four-bar mechanism hinge on casing, this patent uses four-bar mechanism chain connection casing and screen assembly, realize the upset of screen assembly, four-bar mechanism hinge synchronization action is needed during upset, if one or a few bar therein goes wrong, the synchronicity of its action is relatively difficult to ensure card, the impact locating effect to screen；Published Chinese patent CN204270610U discloses maintenance seamless tiled display equipment before a kind of DLP, the front end of its fixing cabinet is fixed with display screen by display screen governor motion, it is fixed with mirror assembly by lens controlling device on the rear end floor beam of fixing cabinet, movement is fixed on the bottom rear of fixing cabinet by six axle regulating platforms, although equipped with screw rod and the screen hook for adjusting screen upper-lower position on its cabinet crossbeam, a screen locking device is had on column, but itself and the unresolved positioning precision problem to screen.
Summary of the invention
The technical problem to be solved is: for the deficiencies in the prior art, it is provided that a kind of controllability is good, to screen accurate positioning, front maintenance back projection scialyscope casing that cost of manufacture is low.
nullThe present invention solves the technical scheme that above-mentioned technical problem used: front maintenance back projection scialyscope casing，Including box frame with for assembling the screen frame of screen assembly，Described box frame is connected unit with described screen frame by two and is connected，Each described connection unit includes push pedal、Air spring and rocker assembly，Described screen frame is connected with the upper hinge of described push pedal，The top of described push pedal is provided with described air spring，The outfan of described air spring is fixing with described screen frame to be connected，The bottom of described push pedal is hinged with one end of described rocker assembly，The other end of described rocker assembly is hinged with described box frame，The middle part of described push pedal is slidably connected with described box frame，On described screen frame, unlocking mechanism is installed，Positioning fastener mechanism is installed in described push pedal，Before and after described positioning fastener mechanism, stroke is adjustable，When screen frame closes up，Screen frame is locked in push pedal by unlocking mechanism and positioning fastener mechanism respectively；Turning over when opening on screen frame, unlocking mechanism and positioning fastener mechanism successively release the locking to screen frame, and screen frame is the most turning to be opened.
After before the present invention, maintenance back projection scialyscope casing is installed and used, screen assembly is assemblied in screen frame, when screen frame closes up, jointly it is locked screen frame by unlocking mechanism and positioning fastener mechanism, by screen frame firmly, be firmly secured in push pedal, high to the positioning precision of screen assembly, accuracy is good；When safeguarding before needing screen is carried out, unlocking mechanism is made to release the locking to screen frame, level pulls open screen frame further along, screen frame outwards pull open while rocker assembly and push pedal reach, make the locking to screen frame of the positioning fastener mechanism releases again, screen frame is opened in upset then up, supports positioning screen framework finally by air spring, can carry out corresponding maintenance work.After maintenance terminates, the process that screen frame is closed up in withdrawal is contrary with said process.
The flexible stroke of air spring is adjustable, is typically designed the flexible stroke controlling air spring, and the maximum flip angle making screen frame is 90 °.The support degree of air spring is steady, and controllability is good, advantageously reduces the vibration of screen, screen and body of wall gives reliably protecting, and guarantees the accuracy to screen location.
nullAs preferably，Described positioning fastener mechanism includes locking board、Mandrel、Adjusting screw rod and back-moving spring front and back，The strip hole front and back arranged is offered on described locking board，One end of described mandrel connects through described strip hole with described push pedal axle，The other end of described mandrel offers the first screwed hole front and back arranged，The rear side of described locking board is provided with location division，Hole, location is offered on described location division，Before and after described, the threaded portion of adjusting screw rod is stretched out in described hole, location through the first described screwed hole，The front side of described locking board is provided with location hook，The location bar for described location hook hook suitable with described location hook it is provided with on described screen frame，One end of described back-moving spring is fixed in described push pedal，The other end of described back-moving spring is connected with described locking board，Position before and after adjusting screw rod before and after rotating described in regulation，Stroke before and after described positioning fastener mechanism can be regulated accordingly.
During casing installation and debugging, according to the physical location between the screen frame closed up and push pedal, position before and after adjusting screw rod before and after rotatable regulation, make the accurate hook of location hook on the securing lever, and back-moving spring can make location hook remain hook on the securing lever, the installation making screen frame is more reliable, accurate；Screen frame moves forward after certain stroke together with push pedal, rotate locking board, locking board is made to move along strip hole while mandrel rotates, and the movement of locking board played position-limiting action by one end offering the first screwed hole of mandrel, thus location hook departs from location bar, the locking to screen frame of the positioning fastener mechanism releases.
As preferably, described unlocking mechanism includes unlocking handle, the described handle that unlocks is riveted on described screen frame, and described unblock handle is fixed with connection hook, described box frame is provided with and connects, with described, the locking bed for described connection hook hook that hook is suitable.Connection hook coordinates with locking bed, and simple in construction, it is convenient that latching operation is conciliate in locking.
As preferably, the middle part of described push pedal is fixedly connected with the guide rail front and back arranged, and described box frame is fixed with track base, and described guide rails assembling is on described track base.When forward horizontal pulls open screen frame, push pedal moves forward, and guide rail steadily moves along track base, the good positioning effect to push pedal.
As preferably, described track base being provided with limit buckle, described limit buckle is for limiting stroke before and after described guide rail.Limit buckle improves controllability and the safety of screen frame rotary movement further, and anti-thrust plate is movable excessively.
As preferably, described guide rail is accurate expanded letter guide rail.Accurate expanded letter guide precision is high, runs more steady, reliable, is conducive to improving further the precision of screen frame rotary movement.
As preferably, described rocker assembly includes synchronizing bar and the most hinged rocking bar, regulation joint and adjusted in concert arm, described rocking bar is arranged on described synchronizing bar by the cooperation of hole axle, it is fixed with sync block on described box frame, one end of described synchronizing bar and described sync block chain connection, described adjusted in concert arm is connected with the underneath hinges of described push pedal.
As preferably, the top of described push pedal is provided with hanging seat plate, described hanging seat plate and described screen frame are hinged by rotary shaft, location-plate and locating dowel it is provided with on described screen frame, the locating slot of arc is offered on described location-plate, described locating dowel connects through described locating slot with described hanging seat board shaft, described air spring and described hanging seat plate chain connection.While screen frame upset, rotating around rotary shaft, and locating dowel is slided along locating slot, location-plate and the setting of locating dowel, preferable position-limiting action is played in the upset to screen frame further, improves the reliability of rotary movement.
As preferably, the top of described push pedal is fixed with some pegs, offering some hanging grooves of the lower openings suitable with described some pegs on described hanging seat plate, the end of described some pegs is each passed through described some hanging grooves and is locked by locking nut respectively.By coordinating of the hanging groove of peg and lower openings, hanging seat plate is arranged in push pedal, and is locked by locking nut, easy to assembly.
As preferably, it is fixed with installation portion in described push pedal, the second screwed hole setting up and down is offered on described installation portion, it is equipped with up-down adjustment screw rod in the second described screwed hole, it is provided with the catch relative with described up-down adjustment screw position on described hanging seat plate, described catch is positioned at the surface of described up-down adjustment screw rod, the upper-lower position of the up-down adjustment screw rod described in rotation regulation, can regulate the installation site up and down of described screen frame accordingly.Hanging seat plate installation site up and down in push pedal can be adjusted by up-down adjustment screw rod; and then the installation site up and down of screen frame is regulated accordingly; the installation accuracy of screen can be improved, additionally, up-down adjustment screw rod may also function as certain support and protective effect.
Compared with prior art, it is an advantage of the current invention that: front maintenance back projection scialyscope casing controllability disclosed by the invention is good, to screen accurate positioning, reliable, cost of manufacture is low, can be applicable to single screen or folded screen, the convenient front attended operation to body of wall；After installing and using, screen assembly is assemblied in screen frame, and screen frame closes up, unlocking mechanism and positioning fastener mechanism are jointly locked screen frame, by screen frame firmly, be firmly secured in push pedal, high to the positioning precision of screen assembly, accuracy is good；When safeguarding before needing screen is carried out, unlocking mechanism is made to release the locking to screen frame, level pulls open screen frame further along, screen frame outwards pull open while rocker assembly and push pedal reach, make the locking to screen frame of the positioning fastener mechanism releases again, screen frame is opened in upset then up, supports positioning screen framework finally by air spring, can carry out corresponding maintenance work.
Accompanying drawing explanation
Fig. 1 is the design sketch after the front maintenance back projection scialyscope casing of embodiment is applied to single screen；
Fig. 2 is the effect side view after the front maintenance back projection scialyscope casing of embodiment is applied to single screen；
Fig. 3 is that the level of the screen frame after removing side box frame and connecting unit and intraware pulls open state diagrammatic side view；
Fig. 4 is the partial switching view of the screen frame after removing side box frame and connecting unit and intraware；
Fig. 5 is enlarged drawing at A in Fig. 4；
Fig. 6 is enlarged drawing at B in Fig. 4；
Fig. 7 is the state that the is totally turned over diagrammatic side view of the screen frame after removing side box frame and connecting unit and intraware；
Fig. 8 be the screen frame after removing side box frame and connecting unit and intraware be totally turned over view.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
nullThe front maintenance back projection scialyscope casing of embodiment 1，As shown in the figure，Including box frame 1 with for assembling the screen frame 2 of screen assembly (not shown)，Box frame 1 is connected unit with screen frame 2 by two and is connected，Each connection unit includes push pedal 3、Air spring 4 and rocker assembly 5，Screen frame 2 is connected with the upper hinge of push pedal 3，The top of push pedal 3 is provided with air spring 4，The outfan of air spring 4 is fixing with screen frame 2 to be connected，The bottom of push pedal 3 is hinged with one end of rocker assembly 5，The other end of rocker assembly 5 is hinged with box frame 1，The middle part of push pedal 3 is fixedly connected with the guide rail 61 front and back arranged，Track base 62 it is fixed with on box frame 1，Guide rail 61 is arranged on track base 62，Limit buckle 63 it is provided with on track base 62，Limit buckle 63 is used for limiting stroke before and after guide rail 61；On screen frame 2, unlocking mechanism is installed, unlocking mechanism includes unlocking handle 71, unlock handle 71 to be riveted on screen frame 2, unlock and on handle 71, be fixed with connection hook 72, box frame 1 is provided with the locking bed 73 for connect hook 72 hook suitable with being connected hook 72；nullPositioning fastener mechanism is installed in push pedal 3，Before and after positioning fastener mechanism, stroke is adjustable，Positioning fastener mechanism includes locking board 81、Mandrel 82、Adjusting screw rod 83 and back-moving spring 84 front and back，The strip hole 85 front and back arranged is offered on locking board 81，One end of mandrel 82 connects through strip hole 85 with push pedal 3 axle，The other end of mandrel 82 offers not shown in the first screwed hole 86(figure front and back arranged)，The rear side of locking board 81 is provided with location division 87，Hole 88, location is offered on location division 87，Front and back the threaded portion of adjusting screw rod 83 is stretched out in hole 88, location through the first screwed hole 86，The front side of locking board 81 is provided with location hook 89，The location bar 11 for location hook 89 hook suitable with location hook 89 it is provided with on screen frame 1，One end of back-moving spring 84 is fixed in push pedal 3，The other end of back-moving spring 84 is connected with locking board 81.
In embodiment 1, the top of push pedal 3 is provided with hanging seat plate 9, hanging seat plate 9 and screen frame 2 are hinged by rotary shaft 91, location-plate 21 and locating dowel 22 it is provided with on screen frame 2, the locating slot 23 of arc is offered on location-plate 21, locating dowel 22 connects through locating slot 23 with hanging seat plate 9 axle, air spring 4 and hanging seat plate 9 chain connection；The top of push pedal 3 is fixed with two pegs 31, and hanging seat plate 9 offers two hanging grooves 92 of the lower openings suitable with two pegs 31, and the end of two pegs 31 is each passed through two hanging grooves 92 and is locked by locking nut 32 respectively；Installation portion 33 it is fixed with in push pedal 3, offer on installation portion 33 not shown in the second screwed hole 34(figure setting up and down), it is equipped with up-down adjustment screw rod 35 in second screwed hole 34, being provided with the catch 93 relative with up-down adjustment screw rod 35 position on hanging seat plate 9, catch 93 is positioned at the surface of up-down adjustment screw rod 35.
nullThe front maintenance back projection scialyscope casing of embodiment 2，As shown in the figure，Including box frame 1 with for assembling the screen frame 2 of screen assembly (not shown)，Box frame 1 is connected unit with screen frame 2 by two and is connected，Each connection unit includes push pedal 3、Air spring 4 and rocker assembly 5，Screen frame 2 is connected with the upper hinge of push pedal 3，The top of push pedal 3 is provided with air spring 4，The outfan of air spring 4 is fixing with screen frame 2 to be connected，The bottom of push pedal 3 is hinged with one end of rocker assembly 5，The other end of rocker assembly 5 is hinged with box frame 1，The middle part of push pedal 3 is fixedly connected with the guide rail 61 front and back arranged，Guide rail 61 is accurate expanded letter guide rail，Track base 62 it is fixed with on box frame 1，Guide rail 61 is arranged on track base 62，Limit buckle 63 it is provided with on track base 62，Limit buckle 63 is used for limiting stroke before and after guide rail 61；On screen frame 2, unlocking mechanism is installed, unlocking mechanism includes unlocking handle 71, unlock handle 71 to be riveted on screen frame 2, unlock and on handle 71, be fixed with connection hook 72, box frame 1 is provided with the locking bed 73 for connect hook 72 hook suitable with being connected hook 72；nullPositioning fastener mechanism is installed in push pedal 3，Before and after positioning fastener mechanism, stroke is adjustable，Positioning fastener mechanism includes locking board 81、Mandrel 82、Adjusting screw rod 83 and back-moving spring 84 front and back，The strip hole 85 front and back arranged is offered on locking board 81，One end of mandrel 82 connects through strip hole 85 with push pedal 3 axle，The other end of mandrel 82 offers the first screwed hole 86 front and back arranged，The rear side of locking board 81 is provided with location division 87，Hole 88, location is offered on location division 87，Front and back the threaded portion of adjusting screw rod 83 is stretched out in hole 88, location through the first screwed hole 86，The front side of locking board 81 is provided with location hook 89，The location bar 11 for location hook 89 hook suitable with location hook 89 it is provided with on screen frame 1，One end of back-moving spring 84 is fixed in push pedal 3，The other end of back-moving spring 84 is connected with locking board 81.
In embodiment 2, rocker assembly 5 includes synchronizing bar 51 and the most hinged rocking bar 52, regulation joint 53 and adjusted in concert arm 54, rocking bar 52 is arranged on synchronizing bar 51 by the cooperation of hole axle, sync block 55 it is fixed with on box frame 1, one end of synchronizing bar 51 and sync block 55 chain connection, adjusted in concert arm 54 is connected with the underneath hinges of push pedal 3；The top of push pedal 3 is provided with hanging seat plate 9, hanging seat plate 9 and screen frame 2 are hinged by rotary shaft 91, location-plate 21 and locating dowel 22 it is provided with on screen frame 2, the locating slot 23 of arc is offered on location-plate 21, locating dowel 22 connects through locating slot 23 with hanging seat plate 9 axle, air spring 4 and hanging seat plate 9 chain connection；The top of push pedal 3 is fixed with two pegs 31, and hanging seat plate 9 offers two hanging grooves 92 of the lower openings suitable with two pegs 31, and the end of two pegs 31 is each passed through two hanging grooves 92 and is locked by locking nut 32 respectively；Installation portion 33 it is fixed with in push pedal 3, the second screwed hole 34 setting up and down is offered on installation portion 33, being equipped with up-down adjustment screw rod 35 in second screwed hole 34, hanging seat plate 9 is provided with the catch 93 relative with up-down adjustment screw rod 35 position, catch 93 is positioned at the surface of up-down adjustment screw rod 35.
The front maintenance back projection scialyscope casing controllability of above example is good, and to screen accurate positioning, reliably, cost of manufacture is low, can be applicable to single screen or folded screen, the convenient front attended operation to body of wall.Fig. 1 is the design sketch after the front maintenance back projection scialyscope casing of embodiment is applied to single screen.
Screen frame 2-in-1 hold together time, screen frame 2 is locked in push pedal 3 by unlocking mechanism and positioning fastener mechanism respectively；Turning over when opening on screen frame 2, unlocking mechanism and positioning fastener mechanism successively release the locking to screen frame 2, and screen frame 2 is that is turning to be opened.Concrete course of action is as follows.
During casing installation and debugging, according to the physical location between the screen frame 2 closed up and push pedal 3, position before and after adjusting screw rod 83 before and after rotatable regulation, stroke before and after positioning fastener mechanism is regulated accordingly, location hook 89 is made accurately to be hooked on the bar 11 of location, and back-moving spring 84 can make location hook 89 remain on the location bar 11 being hooked on screen frame 1 setting, meanwhile, connect hook 72 to be hooked on box frame 1 on the locking bed 73 arranged, so jointly it is locked screen frame 2 by unlocking mechanism and positioning fastener mechanism, realize the reliable of screen frame 2, accurately install.
During above-mentioned installation and debugging; also by up-down adjustment screw rod 83, the hanging seat plate 9 installation site up and down in push pedal 3 is adjusted; and then the installation site up and down of screen frame 2 is regulated accordingly; guarantee the installation accuracy of screen, and up-down adjustment screw rod 83 may also function as certain support and protective effect.
After casing is installed, when safeguarding before needing screen is carried out, first rotate and unlock handle 71, make connection hook 72 depart from locking bed 73, thus unlocking mechanism releases the locking to screen frame 2；Level pulls open screen frame 2 further along, while screen frame 2 outwards pulls open, rocker assembly 5 and push pedal 3 move forward, guide rail 61 steadily moves along track base 62, rotate locking board 81 afterwards, locking board 81 is made to move along strip hole 85 while mandrel 82 rotates, and the movement of locking board 81 played position-limiting action by one end offering the first screwed hole 86 of mandrel 82, thus location hook 89 departs from location bar 11, and positioning fastener mechanism i.e. releases the locking to screen frame 2；Screen frame 2 is opened in upset then up, while screen frame 2 upset, rotates around rotary shaft 91, and locating dowel 22 is slided along locating slot 23, after screen frame 2 upset puts in place, support positioning screen framework 2 by air spring 4, corresponding maintenance work can be carried out.After maintenance terminates, the process that screen frame 2 is closed up in withdrawal is contrary with said process.
The flexible stroke of air spring 4 is adjustable, and in embodiment 1 and embodiment 2, design controls the flexible stroke of air spring 4, and the maximum flip angle making screen frame is 90 °.
Claims (10)
- null1. maintenance back projection scialyscope casing before，Including box frame with for assembling the screen frame of screen assembly，It is characterized in that described box frame is connected unit with described screen frame by two and is connected，Each described connection unit includes push pedal、Air spring and rocker assembly，Described screen frame is connected with the upper hinge of described push pedal，The top of described push pedal is provided with described air spring，The outfan of described air spring is fixing with described screen frame to be connected，The bottom of described push pedal is hinged with one end of described rocker assembly，The other end of described rocker assembly is hinged with described box frame，The middle part of described push pedal is slidably connected with described box frame，On described screen frame, unlocking mechanism is installed，Positioning fastener mechanism is installed in described push pedal，Before and after described positioning fastener mechanism, stroke is adjustable，When screen frame closes up，Screen frame is locked in push pedal by unlocking mechanism and positioning fastener mechanism respectively；Turning over when opening on screen frame, unlocking mechanism and positioning fastener mechanism successively release the locking to screen frame, and screen frame is the most turning to be opened.
- nullFront maintenance back projection scialyscope casing the most according to claim 1，It is characterized in that described positioning fastener mechanism includes locking board、Mandrel、Adjusting screw rod and back-moving spring front and back，The strip hole front and back arranged is offered on described locking board，One end of described mandrel connects through described strip hole with described push pedal axle，The other end of described mandrel offers the first screwed hole front and back arranged，The rear side of described locking board is provided with location division，Hole, location is offered on described location division，Before and after described, the threaded portion of adjusting screw rod is stretched out in described hole, location through the first described screwed hole，The front side of described locking board is provided with location hook，The location bar for described location hook hook suitable with described location hook it is provided with on described screen frame，One end of described back-moving spring is fixed in described push pedal，The other end of described back-moving spring is connected with described locking board，Position before and after adjusting screw rod before and after rotating described in regulation，Stroke before and after described positioning fastener mechanism can be regulated accordingly.
- Front maintenance back projection scialyscope casing the most according to claim 1 and 2, it is characterized in that described unlocking mechanism includes unlocking handle, the described handle that unlocks is riveted on described screen frame, it is fixed with connection hook on described unblock handle, described box frame is provided with and connects, with described, the locking bed for described connection hook hook that hook is suitable.
- Front maintenance back projection scialyscope casing the most according to claim 1 and 2, it is characterised in that the middle part of described push pedal is fixedly connected with the guide rail front and back arranged, and described box frame is fixed with track base, and described guide rails assembling is on described track base.
- Front maintenance back projection scialyscope casing the most according to claim 4, it is characterised in that be provided with limit buckle on described track base, described limit buckle is for limiting stroke before and after described guide rail.
- Front maintenance back projection scialyscope casing the most according to claim 4, it is characterised in that described guide rail is accurate expanded letter guide rail.
- Front maintenance back projection scialyscope casing the most according to claim 1 and 2, it is characterized in that described rocker assembly includes synchronizing bar and the most hinged rocking bar, regulation joint and adjusted in concert arm, described rocking bar is arranged on described synchronizing bar by the cooperation of hole axle, it is fixed with sync block on described box frame, one end of described synchronizing bar and described sync block chain connection, described adjusted in concert arm is connected with the underneath hinges of described push pedal.
- Front maintenance back projection scialyscope casing the most according to claim 1 and 2, it is characterized in that the top of described push pedal is provided with hanging seat plate, described hanging seat plate and described screen frame are hinged by rotary shaft, location-plate and locating dowel it is provided with on described screen frame, the locating slot of arc is offered on described location-plate, described locating dowel connects through described locating slot with described hanging seat board shaft, described air spring and described hanging seat plate chain connection.
- Front maintenance back projection scialyscope casing the most according to claim 8, it is characterized in that the top of described push pedal is fixed with some pegs, offering some hanging grooves of the lower openings suitable with described some pegs on described hanging seat plate, the end of described some pegs is each passed through described some hanging grooves and is locked by locking nut respectively.
- Front maintenance back projection scialyscope casing the most according to claim 8, it is characterized in that being fixed with installation portion in described push pedal, the second screwed hole setting up and down is offered on described installation portion, it is equipped with up-down adjustment screw rod in the second described screwed hole, it is provided with the catch relative with described up-down adjustment screw position on described hanging seat plate, described catch is positioned at the surface of described up-down adjustment screw rod, the upper-lower position of the up-down adjustment screw rod described in rotation regulation, can regulate accordingly to the installation site up and down of described screen frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510484333.0A CN105068371B (en) | 2015-08-10 | 2015-08-10 | Front maintenance back projection scialyscope casing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510484333.0A CN105068371B (en) | 2015-08-10 | 2015-08-10 | Front maintenance back projection scialyscope casing |
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| Publication Number | Publication Date |
|---|---|
| CN105068371A CN105068371A (en) | 2015-11-18 |
| CN105068371B true CN105068371B (en) | 2016-11-30 |
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| CN201510484333.0A Expired - Fee Related CN105068371B (en) | 2015-08-10 | 2015-08-10 | Front maintenance back projection scialyscope casing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111063271A (en) * | 2020-01-03 | 2020-04-24 | 深圳市格特隆光电股份有限公司 | A box front-out LED display |
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|---|---|---|---|---|
| JP2002341435A (en) * | 2001-05-14 | 2002-11-27 | Sony Corp | Projector device |
| CN102981353A (en) * | 2012-11-20 | 2013-03-20 | 广东威创视讯科技股份有限公司 | Preventive maintenance turnover mechanism |
| CN203551940U (en) * | 2013-11-28 | 2014-04-16 | 上海纬而视科技股份有限公司 | Front maintenance type DLP rear projection display casing |
| CN204832756U (en) * | 2015-08-10 | 2015-12-02 | 宁波奇科威智能科技有限公司 | Front maintenance rear -projection projector box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105068371A (en) | 2015-11-18 |
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