CN110242834A - A kind of backrest device and LED display - Google Patents
A kind of backrest device and LED display Download PDFInfo
- Publication number
- CN110242834A CN110242834A CN201910493027.1A CN201910493027A CN110242834A CN 110242834 A CN110242834 A CN 110242834A CN 201910493027 A CN201910493027 A CN 201910493027A CN 110242834 A CN110242834 A CN 110242834A
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- China
- Prior art keywords
- backrest
- connecting rod
- unit
- module
- backrest unit
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/42—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
Abstract
The present invention discloses a kind of backrest device and LED display, belongs to LED display technical field.The backrest device includes several backrest modules arranged side by side；Backrest module includes the first backrest unit, the second backrest unit and pedestal, and the second backrest unit is removably connected on pedestal, is flexibly connected between the first backrest unit and the second backrest unit by a multi link elevating mechanism；It is flexibly connected between the pedestal of adjacent backrest module by a multi link angle adjusting mechanism two-by-two, so that each multi link angle adjusting mechanism carries out arcuate movement by another backrest module that the micrometer regulating part of a line with a scale drives a backrest module relatively adjacent.Backrest device of the invention and LED display have many advantages, such as that adjusting angular range is big, degree of regulation is high, structure is simple and convenient to operate, cost of labor can be greatly lowered and uses machine cost.
Description
Technical field
The present invention relates to LED display mounting technology field, in particular to a kind of backrest device and LED display.
Background technique
Currently, large-scale outdoor LED display generallys use the combining form that backrest adds LED box, pass through back frame structure
Support LED box, and traditional backrest such as day cabinet frame is mostly that setting angle adjusts dress on cabinet without angle adjustment device
It sets, is limited so that adjusting angle, meanwhile, existing backrest is mostly one section one section and is spliced, by manpower or other liftings
Machinery is completed, and is increased cost of labor and is used machine cost.
Summary of the invention
It is a primary object of the present invention to propose a kind of backrest device and LED display, traditional backrest tune is aimed to solve the problem that
Section angle is limited, lifting is inconvenient to the problems such as being easy to increase cost of labor and using machine cost.
To achieve the above object, the present invention provides a kind of backrest device, and the backrest device includes several arranged side by side
Backrest module；The backrest module includes the first backrest unit, the second backrest unit and pedestal, and the second backrest unit can
Dismantling connection passes through a multi link elevator on the pedestal between the first backrest unit and the second backrest unit
Structure is flexibly connected；It is lived between the pedestal of the adjacent backrest module by a multi link angle adjusting mechanism two-by-two
Dynamic connection, so that each multi link angle adjusting mechanism drives a backrest by the micrometer regulating part of a line with a scale
The relatively adjacent another backrest module of module carries out arcuate movement.
Optionally, the multi link angle adjusting mechanism further include the first long connecting rod, the second long connecting rod, the first short connecting rod with
And second short connecting rod, first long connecting rod and second long connecting rod staggeredly rotate setting；One end of first long connecting rod
And one end of second long connecting rod passes through the pedestal carry out activity company of the micrometer regulating part and a backrest module respectively
It connects；The other end of first long connecting rod and the pedestal of adjacent another backrest module are connected with first short connecting rod,
The other end of second long connecting rod and the pedestal of adjacent another backrest module are connected with second short connecting rod, and each
Junction is rotation connection.
Optionally, it is staggered between the middle part of first long connecting rod and the middle part of second long connecting rod, and the two
Between be rotatablely connected by a long pin shaft.
Optionally, the multi link elevating mechanism include vertical links, waling stripe, two first connecting rods, two second connecting rods,
Two first fixed quarter butts and two second fixed quarter butts；The pedestal is equipped with connecting rod far from the second backrest unit side
Movable mounting groove, with corresponding one end for installing the vertical links；In the middle part of the waling stripe and the vertical links
Portion is rotatablely connected；The two first fixed quarter butts are opposite to be installed in the lower part of the first backrest unit, and described two second
Fixed quarter butt is opposite to be installed in the top of the second backrest unit；The middle part of the first connecting rod is equipped with overhead structure, so that
The first connecting rod includes first end, second end and third end；The bottom of the second connecting rod is equipped with overhead structure, so that described
Second connecting rod includes first end and second end；The waling stripe, an institute are connected between the third end of two first connecting rods
It states and is connected with one described first fixed quarter butt between the first end of first connecting rod and the first end of an adjacent second connecting rod,
It is fixed that one described second is connected between the second end of one first connecting rod and the second end of an adjacent second connecting rod
Quarter butt, and each junction is rotation connection.
Optionally, pass through several detachable waters between the first backrest unit and adjacent the second backrest unit
Flushconnection plate is fastenedly connected.
Optionally, the first backrest list of the first backrest unit of the backrest module and adjacent another backrest module
It is fastenedly connected between member by several detachable angle connecting boards；Second backrest unit of the backrest module with it is adjacent
Another backrest module the second backrest unit between be fastenedly connected by several detachable angle connecting boards.
Optionally, the pedestal is supported by several Castor structures.
Optionally, the first backrest unit and the second backrest unit respectively include driving platform and several frames
Every one side of frame, the driving platform connects with a frame setting.
In addition, to achieve the above object, the present invention also provides a kind of LED display, the LED display includes several
Corresponding install on one side of LED box and above-mentioned backrest device, each frame fixes a LED box.
Optionally, the driving platform is built-in with power module, HUB plate and receives card, to pass through the driving platform
Electric power confession is carried out in multiple LED boxes on the corresponding first backrest unit or the second backrest unit to install
It answers and signal control is handled.
Backrest device and LED display provided by the invention comprising several backrest modules arranged side by side；Backrest module
Including the first backrest unit, the second backrest unit and pedestal, pass through more than one between the first backrest unit and the second backrest unit
Connecting rod lifting mechanism is flexibly connected, to realize the lifting installation of the first backrest unit by multi link elevating mechanism, meanwhile,
It is flexibly connected between the pedestal of adjacent backrest module by a multi link angle adjusting mechanism two-by-two, so that each connect more
Another backrest that bar angle adjusting mechanism drives a backrest module relatively adjacent by the micrometer regulating part of a line with a scale
Module carries out arcuate movement, i.e., can realize the angular adjustment between two backrest modules by multi link angle adjusting mechanism.It can
See, this backrest device and LED display, backrest device can realize that LED box is flat together with driving by multi link elevating mechanism
Platform rises together, without large-scale elevating mechanism and excessive human resources, lowers installation cost；Meanwhile multi link angle tune
Section mechanism can realize the angular adjustment of backrest using connecting rod principle, have adjusting angular range is big (to adjust angle in outer radian 20
Degree and 60 degree intermediate changes of inner arc) and degree of regulation height (its angular adjustment can ensure that by the micrometer regulating part of line with a scale
Precision) the advantages that, in addition, the backrest unit supports LED box of frame structure, so that LED box can carry out front and back maintenance simultaneously,
It is easy to operate.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of LED display provided in an embodiment of the present invention.
Fig. 2 is the fractionation structural representation of the backrest module of LED display shown in Fig. 1.
Fig. 3 is the partial structurtes folded state schematic diagram of LED display shown in Fig. 1.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, disclosed below
The each embodiment of the present invention involved in technical characteristic can be combined with each other as long as they do not conflict with each other.
As shown in Figures 1 and 2, the embodiment of the present invention provides a kind of LED display 1, which includes several LED
Cabinet 100 and backrest device 200, the backrest device 200 include several backrest modules 210 arranged side by side.Backrest module 210
Including the first backrest unit 211, the second backrest unit 212 and pedestal 213, the second backrest unit 212 is removably connected to bottom
(the second backrest unit 212 can be specifically fixed on pedestal 213 by screw structural or buckle structure, to realize the two on seat 213
Between detachable link), between the first backrest unit 211 and the second backrest unit 212 pass through a multi link elevating mechanism 214
It is flexibly connected.Two-by-two between the pedestal 213 of adjacent backrest module 210 by a multi link angle adjusting mechanism 220 into
Row is flexibly connected, so that each multi link angle adjusting mechanism 220 drives a back by the micrometer regulating part 221 of a line with a scale
The relatively adjacent another backrest module 210 of frame module 210 carries out arcuate movement.
In the present embodiment, as shown in Figure 1, the multi link angle adjusting mechanism 220 further includes the first long connecting rod 222,
Two long connecting rods 223, the first short connecting rod 224 and the second short connecting rod 225, the first long connecting rod 222 and the second long connecting rod 223 staggeredly turn
Dynamic setting.One end of first long connecting rod 223 and one end of the second long connecting rod 224 pass through micrometer regulating part 221 and a backrest respectively
The pedestal 213 of module 210 is flexibly connected.The bottom of the other end of first long connecting rod 222 and adjacent another backrest module 210
Seat 213 is connected with the first short connecting rod 224, the pedestal of the other end of the second long connecting rod 223 and adjacent another backrest module 210
213 are connected with the second short connecting rod 225, and each junction is rotation connection.Specifically, the middle part of the first long connecting rod 222 and the
It is staggered between the middle part of two long connecting rods 223, and is rotatablely connected between the two by a long pin shaft.So, lead to
The fine adjustment (angle of adjusting can directly be read by the numerical value on graduation mark) of micrometer regulating part 221 is crossed, it can be achieved that two
Angular adjustment between backrest module 210.
As shown in Fig. 2, the multi link elevating mechanism 214 includes vertical links 2141, waling stripe 2142, two first connecting rods
2143, the fixed quarter butt 2145 of two second connecting rods 2144, two first and two second fixed quarter butts 2146.Pedestal 213 is far from second
212 side of backrest unit is equipped with connecting rod activity mounting groove 2131, with one end of corresponding installation vertical links 2141.Level is even
The middle part of bar 2142 and the middle part of vertical links 2141 are rotatablely connected.Two first fixed quarter butts 2145 are opposite to be installed in first
The lower part of backrest unit 211, two second fixed quarter butts 2146 are opposite to be installed in the top of the second backrest unit 212.First connecting rod
2143 middle part is equipped with overhead structure, so that first connecting rod 2143 includes first end 21, second end 22 and third end 23.Second connects
The bottom of bar 2144 is equipped with overhead structure, so that second connecting rod 2144 includes first end 24 and second end 25.Two first connecting rods
Waling stripe 2142 is connected between 2143 third end 23, the first end 21 of a first connecting rod 2143 and adjacent one second connect
It is connected with one first fixed quarter butt 2145 between the first end 24 of bar 2144, the second end 22 of a first connecting rod 2143 and adjacent
One second fixed quarter butt 2146 is connected between the second end 25 of one second connecting rod 2144, and each junction is rotation connection.
By connecting rod activity mounting groove 2131 be equipped with spacing breach 26, can limit vertical links 2141 to far from backrest unit (including
First backrest unit 211 and the second backrest unit 212) 90 degree of overturnings of side progress, it is so, vertical by controlling
Connecting rod 2141 carries out 90 degree of overturnings, can successively drive each link rotatable, finally to realize the lifting of the first backrest unit 211,
So that the first backrest unit 211 is being located at the position (as shown in Figure 3) in 212 front of the second backrest unit and is being located at the second backrest
It is freely converted between position (as shown in Figure 1) right above unit 212.
As shown in Fig. 2, by several detachable between the first backrest unit 211 and the second adjacent backrest unit 212
Horizontal connecting plate 27 is fastenedly connected, i.e. the adjusting when the first backrest unit 211 process multi link elevating mechanism 214, makes it
After right above the second backrest unit 212, after adjusting between the two can be realized by detachable horizontal connection plate 27
It is fastenedly connected.Meanwhile the first backrest list of the first backrest unit 211 and adjacent another backrest module 210 of backrest module 210
It is fastenedly connected between member 211 by several detachable angle connecting boards 28, the second backrest unit of backrest module 210
Between 212 and the second backrest unit 212 of adjacent another backrest module 210 by several detachable angle connecting boards 29 into
Row is fastenedly connected.The detachable angle connecting board 29 has different angles according to actual needs, according to two adjacent back
Specific angle after adjusting between frame module 210 realizes two backrests using the detachable angle connecting board 29 of respective angles
Being fastenedly connected after the adjusting between module 210.
As shown in Figure 1, pedestal 213 is supported by several Castor structures 230, it can be convenient for entire backrest device 200
Transport.First backrest unit 211 includes driving platform 2111 and several frames 2112, drive every one side of platform 2111 with
One frame 2112 connects setting, it may be preferable that and driving platform 2111 and frame 2112 in the present embodiment are all made of diamond structure,
The number of frame 2112 is specially four, and every one side of driving platform 2111 connects with a frame 2112 setting, so that first
Backrest unit 211 forms the centrosymmetric image centered on driving platform 2111, and the correspondence on one side of each frame 2112 is installed
Fix a LED box 100.Likewise, the second backrest unit 212 includes driving platform 2121 and four frames 2122, driving
Every one side of platform 2121 connects with a frame 2122 setting, it may be preferable that driving platform 2121 and frame in the present embodiment
Frame 2122 is all made of diamond structure, and the number of frame 2122 is specially four, drive platform 2121 every one side with a frame
2122 connect setting, so that the second backrest unit 212 forms the centrosymmetric image centered on driving platform 2121, each frame
Corresponding install on one side of frame 2122 fixes a LED box 100.In addition, driving platform 2111,2121 be built-in with power module,
HUB (multiport transponder) plate and reception card, to be to install in corresponding first backrest list by driving platform 2111,2121
Multiple LED boxes 100 in member 211 or the second backrest unit 212 carry out power supply and signal control processing.So,
By the way that the power module being placed in each LED box 100 originally, HUB (multiport transponder) plate and reception card are placed
In driving platform 2111,2121 accordingly, so that LED box 100 is optimized, the weight of LED box 100 is alleviated, just
In the transport of LED box 100, reduction is collided with.
Backrest device and LED display provided in an embodiment of the present invention comprising several backrest modules arranged side by side；Back
Frame module includes the first backrest unit, the second backrest unit and pedestal, is led between the first backrest unit and the second backrest unit
It crosses a multi link elevating mechanism to be flexibly connected, to realize the lifting peace of the first backrest unit by multi link elevating mechanism
Dress, meanwhile, it is flexibly connected between the pedestal of adjacent backrest module by a multi link angle adjusting mechanism two-by-two, so that
Each multi link angle adjusting mechanism drives relatively adjacent another of a backrest module by the micrometer regulating part of a line with a scale
The backrest module carries out arcuate movement, i.e., can realize the angle between two backrest modules by multi link angle adjusting mechanism
It adjusts.As it can be seen that this backrest device and LED display, backrest device by multi link elevating mechanism can realize LED box together with
Driving platform rises together, without large-scale elevating mechanism and excessive human resources, lowers installation cost；Meanwhile multi link
Angle adjusting mechanism can realize the angular adjustment of backrest using connecting rod principle, have adjusting angular range is big (to adjust angle outside
20 degree of radian and 60 degree intermediate changes of inner arc) and degree of regulation height (its angle can ensure that by the micrometer regulating part of line with a scale
Spend degree of regulation) the advantages that, in addition, the backrest unit supports LED box of frame structure, so that before LED box can carry out simultaneously
After safeguard, it is easy to operate.
In conjunction with attached drawing, the embodiments of the present invention are described in detail above, but the present invention is not limited to described implementations
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.
Claims (10)
1. a kind of backrest device, which is characterized in that the backrest device includes several backrest modules arranged side by side；The backrest
Module includes the first backrest unit, the second backrest unit and pedestal, and the second backrest unit is removably connected to the bottom
On seat, it is flexibly connected between the first backrest unit and the second backrest unit by a multi link elevating mechanism；
It is flexibly connected between the pedestal of the adjacent backrest module by a multi link angle adjusting mechanism two-by-two, so that each
The multi link angle adjusting mechanism drives a backrest module relatively adjacent by the micrometer regulating part of a line with a scale
Another backrest module carries out arcuate movement.
2. backrest device according to claim 1, which is characterized in that the multi link angle adjusting mechanism further includes first
Long connecting rod, the second long connecting rod, the first short connecting rod and the second short connecting rod, first long connecting rod interlock with second long connecting rod
Rotation setting；One end of first long connecting rod and one end of second long connecting rod pass through the micrometer regulating part and one respectively
The pedestal of the backrest module is flexibly connected；The other end of first long connecting rod and adjacent another backrest module
Pedestal be connected with first short connecting rod, the bottom of the other end of second long connecting rod and adjacent another backrest module
Seat is connected with second short connecting rod, and each junction is rotation connection.
3. backrest device according to claim 2, which is characterized in that the middle part of first long connecting rod and second length
It is staggered between the middle part of connecting rod, and is rotatablely connected between the two by a long pin shaft.
4. backrest device according to claim 1, which is characterized in that the multi link elevating mechanism include vertical links,
Waling stripe, two first connecting rods, two second connecting rods, two first fixed quarter butts and two second fixed quarter butts；The pedestal is separate
The second backrest unit side is equipped with connecting rod activity mounting groove, with corresponding one end for installing the vertical links；It is described
It is rotatablely connected in the middle part of the middle part of waling stripe and the vertical links；Described two first fixed quarter butts are opposite to be installed in institute
The lower part of the first backrest unit is stated, described two second fixed quarter butts are opposite to be installed in the top of the second backrest unit；It is described
The middle part of first connecting rod is equipped with overhead structure, so that the first connecting rod includes first end, second end and third end；Described second
The bottom of connecting rod is equipped with overhead structure, so that the second connecting rod includes first end and second end；The of two first connecting rods
The waling stripe, the first end of a first connecting rod and the first of an adjacent second connecting rod are connected between three ends
One described first fixed quarter butt, the second end of a first connecting rod and an adjacent second connecting rod are connected between end
One described second fixed quarter butt is connected between second end, and each junction is rotation connection.
5. backrest device according to claim 1, which is characterized in that the first backrest unit and adjacent described second
It is fastenedly connected between backrest unit by several detachable horizontal connection plates.
6. backrest device according to claim 1, which is characterized in that the first backrest unit of the backrest module with it is adjacent
Another backrest module the first backrest unit between be fastenedly connected by several detachable angle connecting boards；Institute
State between the second backrest unit of backrest module and the second backrest unit of adjacent another backrest module by it is several can
Detachable angle connecting board is fastenedly connected.
7. backrest device according to claim 1, which is characterized in that the pedestal is propped up by several Castor structures
Support.
8. -7 any backrest device according to claim 1, which is characterized in that the first backrest unit and described second
Backrest unit respectively includes driving platform and several frames, and every one side of the driving platform is connected with a frame
It sets.
9. a kind of LED display, which is characterized in that the LED display includes several LED boxes and such as claim 8 institute
Corresponding install on one side of the backrest device stated, each frame fixes a LED box.
10. LED display according to claim 9, which is characterized in that the driving platform is built-in with power module, HUB
Plate and reception card, to be to install in the corresponding first backrest unit or the second backrest list by the driving platform
Multiple LED boxes in member carry out power supply and signal control processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910493027.1A CN110242834B (en) | 2019-06-06 | 2019-06-06 | Back frame device and LED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910493027.1A CN110242834B (en) | 2019-06-06 | 2019-06-06 | Back frame device and LED display screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110242834A true CN110242834A (en) | 2019-09-17 |
| CN110242834B CN110242834B (en) | 2020-12-01 |
Family
ID=67886371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910493027.1A Active CN110242834B (en) | 2019-06-06 | 2019-06-06 | Back frame device and LED display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110242834B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953444A (en) * | 2019-11-21 | 2020-04-03 | 深圳市洲明科技股份有限公司 | Lifting device and LED display screen |
| CN111627348A (en) * | 2020-06-17 | 2020-09-04 | 湖南新亚胜光电股份有限公司 | Folding back frame and LED display |
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| US8104204B1 (en) * | 2007-08-29 | 2012-01-31 | Daktronics, Inc. | Electronic sign having vertically hinged face panel doors |
| CN202917114U (en) * | 2012-10-31 | 2013-05-01 | 合肥瑞华电子科技有限责任公司 | Light emitting diode (LED) display screen back supporting frame |
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|---|---|---|---|---|
| CN110953444A (en) * | 2019-11-21 | 2020-04-03 | 深圳市洲明科技股份有限公司 | Lifting device and LED display screen |
| CN110953444B (en) * | 2019-11-21 | 2021-09-21 | 深圳市洲明科技股份有限公司 | Lifting device and LED display screen |
| CN111627348A (en) * | 2020-06-17 | 2020-09-04 | 湖南新亚胜光电股份有限公司 | Folding back frame and LED display |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110242834B (en) | 2020-12-01 |
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