CN102243428A - Screen floating device - Google Patents
Screen floating device Download PDFInfo
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- CN102243428A CN102243428A CN 201110191743 CN201110191743A CN102243428A CN 102243428 A CN102243428 A CN 102243428A CN 201110191743 CN201110191743 CN 201110191743 CN 201110191743 A CN201110191743 A CN 201110191743A CN 102243428 A CN102243428 A CN 102243428A
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- turning axle
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- floating installation
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- 238000007667 floating Methods 0.000 title claims abstract description 34
- 230000006835 compression Effects 0.000 claims description 32
- 238000007906 compression Methods 0.000 claims description 32
- 238000009434 installation Methods 0.000 claims description 31
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 11
- 230000001105 regulatory effect Effects 0.000 description 10
- 238000010276 construction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The invention discloses a screen floating device which comprises at least two supporting frames, and the supporting frames are respectively arranged at the two sides of a back-projecting box and fixedly connected with the two sides of a screen; and the supporting frames are respectively provided with a rotating unit, the rotating unit comprises a rotating shaft and a hook, the rotating shaft is arranged on the back-projecting box, and the hook is arranged at the rotating shaft and fixedly connected with the screen. By using the screen floating device disclosed by the invention, two adjacent screens can be mutually tightly combined, so that the minimization of an edge joint between the screens is realized, and then the effect that the edge joint is less than 0.5 mm is achieved. When pluralities of screens are fixed together by using spring nails for clamping, the situation that the edge joints are always minimized can be ensured without being affected by manufacturing tolerances or climatic changes.
Description
Technical field
The present invention relates to screen assembling technique field, particularly a kind of screen floating installation.
Background technology
In actual applications, the giant-screen of multi-display apparatus is generally assembled by many small screen or screen, as Fig. 1 or shown in Figure 2.Shown in Figure 1 is the Facad structure of multi-display apparatus commonly used, and shown in Figure 2 is the side structure of multi-display apparatus commonly used, and it is made of a horizontal M screen and vertical N screen, and what have may also be furnished with a base in the bottom.Among the figure, 1 is piece, 2 is single the small screen, 3 is base, by seeing among the figure, the rear of the small screen is provided with supporting mechanism 4 and projector 5 respectively, and wherein supporting mechanism 4 can be that the giant-screen that corresponding one of each the small screen, one of a plurality of the small screen correspondence or all the small screen are formed uses one jointly.
Multi-display apparatus is made up of many identical elementary cells, and these elementary cells are stacked and/or together placed side by side by the mode of module.Elementary cell (all or part of) with this specific character comprises light shielding part, supporting mechanism 4, the small screen 2 and projector 5.These the small screen 2 can be to be installed on the supporting mechanism 4 regularly or movably.Projector 5 (all or part of) is installed in 4 li of supporting mechanisms in advance.Yet this installation process of elementary cell need be carried out on a stable and smooth stayed surface, to guarantee the best combination between the elementary cell.Simultaneously, when climate change (as variation of temperature and relative humidity etc.), may change the distance between the elementary cell, to the negative effect that is combined with between the elementary cell.
Shown in Fig. 3 a, 3b, 3c and 3d, three the small screen 2 and three supporting mechanisms 4 are installed together by stacked mode, and under climate effect, the size that different expansion coefficient can cause the small screen 2 changes with respect to the size of supporting mechanism 4.In order clearly to describe this change in size difference, among the figure the small screen 2 and supporting mechanism 4 are shown respectively.Fig. 3 a is correct the small screen 2 and the supporting mechanism of installing 4 under the normal climate condition.Compare with Fig. 3 a, Fig. 3 b and Fig. 3 c are the situations under climate effect, and the size of the small screen 2 is with respect to the size decreases of supporting mechanism 4.In Fig. 3 b, three the small screen 2 no longer combine, and the piece 1 between adjacent two the small screen 2 becomes big.In Fig. 3 c, three the small screen 2 still combine, and piece 1 does not change basically, but the screen total body surface area has diminished.Compare with Fig. 3 a, because climate change, it is big that the size of the relative supporting mechanism 4 of size of the small screen 2 among Fig. 3 d becomes, and piece 2 does not change basically, but the screen total surface area becomes big.The variation of the screen that this stack is installed among Fig. 3 also may occur in the screen of installing side by side.This climate change can produce material impact to the multiscreen display apparatus that is assemblied to form by a plurality of elementary cells, influences the display quality of giant-screen easily, and also have following problem simultaneously: the edge of single elementary cell is frangible in transportation.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of screen floating installation be provided, this device can realize screen about, about and move forward and backward, eliminate the piece between adjacent two the small screen to greatest extent.
The present invention is achieved through the following technical solutions, and a kind of screen floating installation comprises at least two bracing frames, and each bracing frame is located at rear-projection case both sides respectively and is fixedlyed connected with screen sides; Each bracing frame is respectively equipped with rotating unit, and rotating unit comprises turning axle and hook, and turning axle is located on the rear-projection case, and hook is located on the turning axle and with screen and is fixedlyed connected.
Described each bracing frame also comprises and moves radially the unit, move radially the unit and comprise cam adjustment structure and radial compression assembly, be connected by the radial compression assembly between the axle bed of rear-projection case and turning axle, cam is adjusted structure and is located on the rear-projection case axle bed joint with turning axle.
Described radial compression assembly comprises radial spring and set screw, and radial spring is placed on the set screw, and radial spring is terminal to join with axle bed.
Cam adjustment structure is set the joint at two ends respectively up and down with axle bed on the described rear-projection case, two ends are provided with the radial compression assembly perpendicular to turning axle respectively about the axle bed.
Described each bracing frame also comprises the unit that moves axially of realizing that screen moves up and down, and moves axially the unit and comprises axial compression assembly and setting nut, and the axial compression assembly is placed in the turning axle bottom, and the turning axle bottom is provided with setting nut.
Described axial compression assembly comprises axle spring and setscrew nut, and axle spring is located at the setting nut top, and setscrew nut is located at the axle spring top.
Regulate for convenience, described setting nut is a wing nut.
As a kind of preferred version, described hook is the hinge hook.
Described hinge hook comprises fixed block and hook portion, and fixed block is connected by hinge axis with hook portion, and hook portion is fixedlyed connected with turning axle, and fixed block is fixedlyed connected with screen.
The two ends up and down of described turning axle are provided with hook respectively.
When this screen floating installation uses, according to actual needs the screen position of each elementary cell is regulated.When just installing, tighten set screw on the rear-projection case, radial spring is in compressive state, so radial spring puts on constant spring force of direction of axle bed all the time, when screen need move forward and backward, move radially the unit by adjusting and realize that rotating cam is adjusted structure, the parts that cam is adjusted in the construction package will move forward or backward, thereby drive whole bracing frame and screen moves forward or backward; When screen needs left rotation and right rotation, realize that by regulating rotating unit rotate turning axle, with respect to the bracing frame left rotation and right rotation, when a plurality of screen splicing, this anglec of rotation can realize the arc splicing of screen to screen by hook; When screen need move up and down, realize to mobile unit by regulating shaft, the rotation setting nut, axle spring can be compressed or stretch, and the driven rotary axle rises or descends, and moves up or down thereby drive screen.
The present invention has following beneficial effect with respect to prior art:
When this screen floating installation uses, can make two adjacent screens combine closely mutually, the piece between the screen has been realized minimizing, and reaches the piece size less than 0.5 millimeter.When using spring nail to clamp a plurality of screens are fixed together, can guarantee that piece can keep minimum always, not be subjected to the influence of manufacturing tolerance or climate change (as the variation of temperature and relative humidity etc.).
In this screen floating installation, because bracing frame and rear-projection case have a movably point of fixity, by adjusting cam adjustment structure is removable this point of fixity, and the effect of radial compression assembly also can be in the limited range internal strain guaranteeing the minimum piece combination between the screen, thereby the difference of the expansion rate between screen and the supporting construction can be compensated.Therefore, screen can carry out moving (promptly move forward and backward, move up and down or left rotation and right rotation) in the certain limit on bracing frame, so just reaches the minimized purpose of piece.
Description of drawings
Fig. 1 is the structure front view of existing multi-display apparatus.
Fig. 2 is the texture edge view of existing multi-display apparatus.
Fig. 3 a is under the normal climate, the structural representation of existing multi-display apparatus.
Fig. 3 b is because climate change has the structural representation when piece becomes big on the multi-display apparatus now.
Fig. 3 c is because climate change has the structural representation when screen diminishes on the multi-display apparatus now.
Fig. 3 d is because climate change has the structural representation when screen becomes big on the multi-display apparatus now.
Fig. 4 is the structural representation of this screen floating installation.
Fig. 5 is that the A of Fig. 4 is to view.
Fig. 6 is the structural representation of single bracing frame in this screen floating installation.
The structural representation of the hinge hook that Fig. 7 is adopted for this screen floating installation.
Fig. 8 is the structural representation of radial compression assembly in this screen floating installation.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
A kind of screen floating installation of present embodiment, its structure such as Fig. 4 or shown in Figure 5 comprise at least two bracing frames, each bracing frame is located at rear-projection case 6 both sides respectively and is fixedlyed connected with screen 2 both sides; Each bracing frame is respectively equipped with rotating unit, and rotating unit comprises turning axle 7 and hinge hook 10, and turning axle 7 is located on the rear-projection case 6, and hinge hook 10 is located on the turning axle 7 and with screen 2 and is fixedlyed connected.
As shown in Figure 7, hinge hook 10 comprises fixed block and hook portion, and fixed block is connected by hinge axis with hook portion, and hook portion is fixedlyed connected with turning axle, and fixed block is fixedlyed connected with screen.
The two ends up and down of turning axle 7 are provided with hinge hook 10 respectively.
When the screen floating installation of present embodiment uses, can only realize the left rotation and right rotation of screen, realize by regulating rotating unit, rotate turning axle, with respect to the bracing frame left rotation and right rotation, when a plurality of screen splicing, this anglec of rotation can realize the arc splicing of screen to screen by hinge hook 10.
A kind of screen floating installation of present embodiment, its structure such as Fig. 4 or shown in Figure 5 comprise at least two bracing frames, each bracing frame is located at rear-projection case 6 both sides respectively and is fixedlyed connected with screen 2 both sides; Each bracing frame is respectively equipped with rotating unit, and rotating unit comprises turning axle 7 and hinge hook 10, and turning axle 7 is located on the rear-projection case 6, and hinge hook 10 is located on the turning axle 7 and with screen 2 and is fixedlyed connected.
As shown in Figure 7, hinge hook 10 comprises fixed block and hook portion, and fixed block is connected by hinge axis with hook portion, and hook portion is fixedlyed connected with turning axle, and fixed block is fixedlyed connected with screen.
The two ends up and down of turning axle 7 are provided with hinge hook 10 respectively.
In the screen floating installation of present embodiment, each bracing frame also comprises and moves radially the unit, move radially the unit and comprise cam adjustment structure 11 and radial compression assembly 12, be connected by radial compression assembly 12 between the axle bed 13 of rear-projection case 6 and turning axle 7, cam is adjusted structure 12 and is located on the rear-projection case 6 axle bed joint with turning axle 7.
As shown in Figure 8, radial compression assembly 12 comprises radial spring 14 and set screw 15, and radial compression assembly 12 is vertical on the axle bed 13, and radial spring 14 is placed on the set screw 15, and radial spring 14 ends join with axle bed.
With the joint at axle bed two ends about in the of 13 cam is set respectively on the rear-projection case 6 and adjusts structure 11, axle bed is provided with radial compression assembly 12 perpendicular to turning axle respectively in two ends about in the of 13.
When the screen floating installation of present embodiment uses, can realize moving forward and backward and left rotation and right rotation of screen.When just installing, tighten set screw 15 on rear-projection case 6, radial spring 14 is in compressive state, so radial spring 14 puts on constant spring force of direction of axle bed all the time, when screen need move forward and backward, move radially the unit by adjusting and realize that rotating cam is adjusted structure 11, the parts that cam is adjusted in the construction package 11 will move forward or backward, thereby drive whole bracing frame and screen moves forward or backward; When screen needs left rotation and right rotation, realize that by regulating rotating unit rotate turning axle 7, with respect to the bracing frame left rotation and right rotation, when a plurality of screen splicing, this anglec of rotation can realize the arc splicing of screen to screen by hinge hook 10.
Embodiment 3
A kind of screen floating installation of present embodiment, its structure such as Fig. 4 or shown in Figure 5 comprise at least two bracing frames, each bracing frame is located at rear-projection case 6 both sides respectively and is fixedlyed connected with screen 2 both sides; Each bracing frame is respectively equipped with rotating unit, and rotating unit comprises turning axle 7 and hinge hook 10, and turning axle 7 is located on the rear-projection case 6, and hinge hook 10 is located on the turning axle 7 and with screen 2 and is fixedlyed connected.
As shown in Figure 7, hinge hook 10 comprises fixed block and hook portion, and fixed block is connected by hinge axis with hook portion, and hook portion is fixedlyed connected with turning axle, and fixed block is fixedlyed connected with screen.
The two ends up and down of turning axle 7 are provided with hinge hook 10 respectively.
In the screen floating installation of present embodiment, each bracing frame also comprises the unit that moves axially of realizing that screen moves up and down, move axially the unit and comprise axial compression assembly 9 and setting nut 8, axial compression assembly 9 is placed in turning axle 7 bottoms, and turning axle 7 bottoms are provided with setting nut 8.
Regulate for convenience, setting nut 8 is a wing nut.
When this screen floating installation uses, can realize the left rotation and right rotation of screen and move up and down.When screen needs left rotation and right rotation, realize that by regulating rotating unit rotate turning axle 7, with respect to the bracing frame left rotation and right rotation, when a plurality of screen splicing, this anglec of rotation can realize the arc splicing of screen to screen by hinge hook 10; When screen need move up and down, realize to mobile unit by regulating shaft, rotation setting nut 8, axle spring can be compressed or stretch, and driven rotary axle 7 rises or descends, and moves up or down thereby drive screen.
A kind of screen floating installation of present embodiment, its structure such as Fig. 4 or shown in Figure 5 comprise at least two bracing frames, each bracing frame is located at rear-projection case 6 both sides respectively and is fixedlyed connected with screen 2 both sides; Each bracing frame is respectively equipped with rotating unit, and rotating unit comprises turning axle 7 and hinge hook 10, and turning axle 7 is located on the rear-projection case 6, and hinge hook 10 is located on the turning axle 7 and with screen 2 and is fixedlyed connected.
Each bracing frame also comprises and moves radially the unit, move radially the unit and comprise cam adjustment structure 11 and radial compression assembly 12, be connected by radial compression assembly 12 between the axle bed 13 of rear-projection case 6 and turning axle 7, cam is adjusted structure 11 and is located on the rear-projection case 6 joint with turning axle 7.
As shown in Figure 8, radial compression assembly 12 comprises radial spring 14 and set screw 15, and radial compression assembly 12 is vertical on the axle bed 13, and radial spring 14 is placed on the set screw 15, and radial spring 14 ends join with axle bed.
Cam adjustment structure 11 is set the joint at two ends respectively up and down with axle bed on the rear-projection case, two ends are provided with the radial compression assembly 12 perpendicular to turning axle respectively about the axle bed.
Each bracing frame also comprises the unit that moves axially of realizing that screen moves up and down, and moves axially the unit and comprises axial compression assembly 9 and setting nut 8, and axial compression assembly 9 is placed in turning axle 7 bottoms, and turning axle 7 bottoms are provided with setting nut 8.
Regulate for convenience, setting nut 8 is a wing nut.
As shown in Figure 7, hinge hook 10 comprises fixed block and hook portion, and fixed block is connected by hinge axis with hook portion, and hook portion is fixedlyed connected with turning axle, and fixed block is fixedlyed connected with screen.
The two ends up and down of turning axle 7 are provided with hinge hook 10 respectively.
When this screen floating installation uses, according to actual needs screen 2 positions of each elementary cell are regulated.When just installing, tighten set screw 15 on rear-projection case 6, radial spring 14 is in compressive state, so radial spring 14 puts on constant spring force of direction of axle bed all the time, when screen need move forward and backward, move radially the unit by adjusting and realize that rotating cam is adjusted structure 11, the parts that cam is adjusted in the construction package 11 will move forward or backward, thereby drive whole bracing frame and screen moves forward or backward; When screen 2 needs left rotation and right rotation, realize that by regulating rotating unit rotate turning axle 7, with respect to the bracing frame left rotation and right rotation, when a plurality of screen splicing, this anglec of rotation can realize the arc splicing of screen to screen by hinge hook 10; When screen need move up and down, realize to mobile unit by regulating shaft, the rotation setting nut, axle spring can be compressed or stretch, and driven rotary axle 7 rises or descends, and moves up or down thereby drive screen.
As mentioned above, just can realize the present invention preferably, the foregoing description is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention; Be that all equalizations of doing according to content of the present invention change and modification, all contained by claim of the present invention scope required for protection.
Claims (10)
1. a screen floating installation is characterized in that, comprises at least two bracing frames, and each bracing frame is located at rear-projection case both sides respectively and is fixedlyed connected with screen sides; Each bracing frame is respectively equipped with rotating unit, and rotating unit comprises turning axle and hook, and turning axle is located on the rear-projection case, and hook is located on the turning axle and with screen and is fixedlyed connected.
2. according to the described a kind of screen floating installation of claim 1, it is characterized in that, described each bracing frame also comprises and moves radially the unit, move radially the unit and comprise cam adjustment structure and radial compression assembly, be connected by the radial compression assembly between the axle bed of rear-projection case and turning axle, cam is adjusted structure and is located on the rear-projection case axle bed joint with turning axle.
3. according to the described a kind of screen floating installation of claim 2, it is characterized in that described radial compression assembly comprises radial spring and set screw, radial spring is placed on the set screw, and radial spring is terminal to join with axle bed.
4. according to the described a kind of screen floating installation of claim 2, it is characterized in that cam adjustment structure is set the joint at two ends respectively up and down with axle bed on the described rear-projection case, two ends are provided with the radial compression assembly perpendicular to turning axle respectively about the axle bed.
5. according to the described a kind of screen floating installation of claim 1, it is characterized in that, described each bracing frame also comprises the unit that moves axially of realizing that screen moves up and down, move axially the unit and comprise axial compression assembly and setting nut, the axial compression assembly is placed in the turning axle bottom, and the turning axle bottom is provided with setting nut.
6. according to the described a kind of screen floating installation of claim 5, it is characterized in that described axial compression assembly comprises axle spring and setscrew nut, axle spring is located at the setting nut top, and setscrew nut is located at the axle spring top.
7. according to the described a kind of screen floating installation of claim 5, it is characterized in that described setting nut is a wing nut.
8. according to the described a kind of screen floating installation of claim 1, it is characterized in that described hook is the hinge hook.
9. described according to Claim 8 a kind of screen floating installation is characterized in that, described hinge hook comprises fixed block and hook portion, and fixed block is connected by hinge axis with hook portion, and hook portion is fixedlyed connected with turning axle, and fixed block is fixedlyed connected with screen.
10. according to the described a kind of screen floating installation of claim 1, it is characterized in that the two ends up and down of described turning axle are provided with hook respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110191743.8A CN102243428B (en) | 2011-07-08 | 2011-07-08 | Screen floating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110191743.8A CN102243428B (en) | 2011-07-08 | 2011-07-08 | Screen floating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102243428A true CN102243428A (en) | 2011-11-16 |
| CN102243428B CN102243428B (en) | 2014-02-19 |
Family
ID=44961558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110191743.8A Expired - Fee Related CN102243428B (en) | 2011-07-08 | 2011-07-08 | Screen floating device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102243428B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102591122A (en) * | 2012-03-16 | 2012-07-18 | 北京环宇蓝博科技有限公司 | Traversing splicing screen |
| CN109272876A (en) * | 2018-11-21 | 2019-01-25 | 威创集团股份有限公司 | A kind of splice displaying system |
| CN111754889A (en) * | 2020-07-06 | 2020-10-09 | 深圳奔等电脑有限公司 | LED seamless connection large screen with automatic identification and screen module replacement functions |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2486992Y (en) * | 2001-07-24 | 2002-04-17 | 李崇国 | Float assembling frame capable of synchronous expand with heat and contract with cold with back project screen picture |
| CN2562527Y (en) * | 2002-08-23 | 2003-07-23 | 李崇国 | Synchronous deformable structure with back project screen on unitary housing |
| CN2624244Y (en) * | 2003-04-29 | 2004-07-07 | 广东威创日新电子有限公司 | Six-axised adjusting frame |
| CN101236352A (en) * | 2008-03-03 | 2008-08-06 | 广东威创视讯科技股份有限公司 | Projection screen |
| CN201654430U (en) * | 2009-11-30 | 2010-11-24 | 广东威创视讯科技股份有限公司 | Floating projection screen |
-
2011
- 2011-07-08 CN CN201110191743.8A patent/CN102243428B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2486992Y (en) * | 2001-07-24 | 2002-04-17 | 李崇国 | Float assembling frame capable of synchronous expand with heat and contract with cold with back project screen picture |
| CN2562527Y (en) * | 2002-08-23 | 2003-07-23 | 李崇国 | Synchronous deformable structure with back project screen on unitary housing |
| CN2624244Y (en) * | 2003-04-29 | 2004-07-07 | 广东威创日新电子有限公司 | Six-axised adjusting frame |
| CN101236352A (en) * | 2008-03-03 | 2008-08-06 | 广东威创视讯科技股份有限公司 | Projection screen |
| CN201654430U (en) * | 2009-11-30 | 2010-11-24 | 广东威创视讯科技股份有限公司 | Floating projection screen |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102591122A (en) * | 2012-03-16 | 2012-07-18 | 北京环宇蓝博科技有限公司 | Traversing splicing screen |
| CN102591122B (en) * | 2012-03-16 | 2015-04-08 | 北京环宇蓝博科技有限公司 | Traversing splicing screen |
| CN109272876A (en) * | 2018-11-21 | 2019-01-25 | 威创集团股份有限公司 | A kind of splice displaying system |
| CN111754889A (en) * | 2020-07-06 | 2020-10-09 | 深圳奔等电脑有限公司 | LED seamless connection large screen with automatic identification and screen module replacement functions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102243428B (en) | 2014-02-19 |
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Effective date of registration: 20201123 Address after: 226600 Building 2, No.288, Changjiang West Road, Haian Town, Haian City, Nantong City, Jiangsu Province Patentee after: Nantong guangshuo communication equipment Co.,Ltd. Address before: Room 2414-2416, main building, no.371, Wushan Road, Tianhe District, Guangzhou City, Guangdong Province Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20201123 Address after: Room 2414-2416, main building, no.371, Wushan Road, Tianhe District, Guangzhou City, Guangdong Province Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 510670 Guangdong city of Guangzhou province Kezhu Guangzhou high tech Industrial Development Zone, Road No. 233 Patentee before: VTRON GROUP Co.,Ltd. |
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