CN102279511B - Screen floating device - Google Patents
Screen floating device Download PDFInfo
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- CN102279511B CN102279511B CN201110191745.7A CN201110191745A CN102279511B CN 102279511 B CN102279511 B CN 102279511B CN 201110191745 A CN201110191745 A CN 201110191745A CN 102279511 B CN102279511 B CN 102279511B
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- tumbler
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Abstract
The invention discloses a screen floating device which comprises at least two supporting frames, wherein the supporting frames are arranged on two sides of a rear-projection box respectively and fixedly connected with two sides of a screen; the supporting frames are provided with rotating units respectively; each rotating unit comprises a rotating shaft and a rotating piece; the rotating shaft is connected with the screen through the rotating piece; and the rotating shaft is connected with the rear-projection box through a shaft seat. By the screen floating device, two adjacent screens can be combined tightly; therefore, a joint between the screens is minimized and the size of the joint is less than 0.5 millimeters. A plurality of screens are fixed together by using spring nail components, so that the joints can be kept minimum and cannot be influenced by manufacturing tolerance or climatic change.
Description
Technical field
The present invention relates to screen assembling technique field, particularly a kind of screen floating device.
Background technology
In actual applications, the giant-screen of multi-display apparatus is generally assembled by being permitted multiunit screen, as shown in Figure 1 or 2.Shown in Fig. 1 is the Facad structure of conventional multi-display apparatus, and shown in Fig. 2 is the side structure of conventional multi-display apparatus, and it consists of a horizontal M screen and longitudinal N screen, and what have may also be furnished with in bottom a base.In figure, 1 is piece, and 2 is single screen, 3 is base, in figure, can see, the rear of screen arranges respectively supporting mechanism 4 and projector 5, and wherein supporting mechanism 4 can be that the giant-screen that corresponding one of each screen, one of a plurality of screen correspondence or all screens form uses one jointly.
Multi-display apparatus is comprised of many identical elementary cells, and these elementary cells are stacked and/or together placed side by side by the mode of module.The elementary cell (all or part of) with this specific character comprises light shielding part, supporting mechanism 4, screen 2 and projector 5.These screens 2 can be to be arranged on supporting mechanism 4 regularly or movably.Projector 5 (all or part of) is arranged on 4 li of supporting mechanisms in advance.Yet this installation process of elementary cell need to be carried out on a stable and smooth stayed surface, to guarantee the best combination between elementary cell.Meanwhile, when climate change (as variation of temperature and relative humidity etc.), may change the distance between elementary cell, to the negative effect that is combined with between elementary cell.
As shown in Fig. 3 a, 3b, 3c and 3d, three screens 2 and three supporting mechanisms 4 are installed together by stacked mode, and under climate effect, the size that different expansion coefficient can cause screen 2 changes with respect to the size of supporting mechanism 4.In order clearly to describe this change in size difference, in figure, screen 2 and supporting mechanism 4 are shown respectively.Fig. 3 a is correct screen 2 and the supporting mechanism 4 of installing under 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 screen 2 is with respect to the size decreases of supporting mechanism 4.In Fig. 3 b, three screens 2 no longer combine, and piece between adjacent two screens 21 becomes large.In Fig. 3 c, three screens 2 still combine, and piece 1 there is no variation, but screen total body surface area has diminished.Compare with Fig. 3 a, due to climate change, it is large that the size of the relative supporting mechanism 4 of size of the screen 2 in Fig. 3 d becomes, and piece 2 there is no variation, but screen total surface area becomes large.The variation of the screen that in Fig. 3, this stack is installed also may occur in the screen of installing side by side.This climate change can produce material impact to the multiscreen display apparatus being assemblied to form by a plurality of elementary cells, easily affects the display quality of giant-screen, also has following problem: the edge of single elementary cell is frangible in transportation simultaneously.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of screen floating device is provided, this device can be realized upper and lower, the left and right of screen and move forward and backward, and eliminates to greatest extent the piece between adjacent two screens.
The present invention is achieved through the following technical solutions, and a kind of screen floating device comprises at least two bracing frames, and each bracing frame is located at respectively rear projection box both sides and is fixedly connected with screen sides; Each bracing frame is respectively equipped with rotating unit, and rotating unit comprises turning axle and tumbler, and turning axle is connected with screen by tumbler, and turning axle is connected with rear projection box by axle bed.
Described each bracing frame also comprises and moves radially unit, move radially unit and comprise cam adjustment construction package and radial compression assembly, between rear projection box and axle bed, by radial compression assembly, be connected, cam is adjusted construction package and is located on rear projection box the joint with axle bed.
Described radial compression assembly comprises radial spring and set screw, and radial spring is placed in set screw, and radial spring end and axle bed join.
On described rear projection box, with the joint at the upper and lower two ends of axle bed, cam adjustment construction package is set respectively, the upper and lower two ends of axle bed arrange respectively the radial compression assembly perpendicular to turning axle.
Described each bracing frame also comprises realizes the unit that moves axially that screen moves up and down, and moves axially unit and comprises axial compression assembly and setting nut, and axial compression assembly is placed on turning axle bottom, and turning axle bottom arranges setting nut.
Described axial compression assembly comprises axle spring and setscrew nut, and axle spring is located at setting nut top, and setscrew nut is located at axle spring top.
For convenient, regulate, described setting nut is knurled nut.
Described turning axle and tumbler can be integral structure, and tumbler is the fixed block being fixed on turning axle, and with the rotation of turning axle, tumbler is and then rotation also, thereby drives screen to rotate.
Described turning axle and tumbler also can be split-type structural, and tumbler is hinge hook, and hinge hook comprises fixed part and hook portion, and fixed part is connected by hinge axis with hook portion, and hook portion is connected with turning axle, and fixed part is fixedly connected with screen.
When this screen floating device is used, according to actual needs the screen position of each elementary cell is regulated.When screen need to move forward and backward, by adjusting, move radially unit and realize, rotating cam is adjusted construction package, and in radial compression assembly, radial spring can be drawn high or be compressed, thereby drives whole bracing frame and screen to move forward or backward; When screen needs left rotation and right rotation, by regulating rotary moving cell, realize, rotate turning axle, tumbler drives screen to realize left rotation and right rotation, meanwhile, when turning axle and tumbler are split-type structural and tumbler while being hinge hook, screen itself also can be with respect to bracing frame left rotation and right rotation, when a plurality of screen splicing, this anglec of rotation can realize the arc splicing of screen; When screen need to move up and down, by regulating shaft, to mobile unit, realize, rotation setting nut, axle spring can be compressed or be stretched, and driven rotary axle rises or declines, thereby drives screen to move up or down.
When this screen floating device is applied to a plurality of screen splicing, can adopt the spring nail assembly identical with radial compression modular construction to connect adjacent two screens, so both can control preferably the piece between screen, also can make the fixing splicing of a plurality of screens.
The present invention, with respect to prior art, has following beneficial effect:
When this screen floating device is used, can make two adjacent screens mutually combine closely, the piece between screen has been realized and having been minimized, and reaches piece size and is less than 0.5 millimeter.Use spring nail assembly to clamp when a plurality of screens are fixed together, can guarantee that piece can keep minimum always, be not subject to the impact of manufacturing tolerance or climate change (as the variation of temperature and relative humidity etc.).
In this screen floating device, because bracing frame and rear projection box have a movably point of fixity, by adjusting cam adjustment construction package, it is removable this point of fixity, and the effect of radial compression assembly also can be in limited range internal strain to guarantee the minimum piece combination between screen, thereby the difference of the expansion/contraction rate between screen and supporting construction can be compensated.Therefore, screen can carry out moving in certain limit (move forward and backward, move up and down or left rotation and right rotation) on bracing frame, so just reaches the minimized object of piece.
Accompanying drawing explanation
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 normal climate, the structural representation of existing multi-display apparatus.
Fig. 3 b is due to climate change, structural representation when piece becomes large on existing multi-display apparatus.
Fig. 3 c is due to climate change, structural representation when screen diminishes on existing multi-display apparatus.
Fig. 3 d is due to climate change, structural representation when screen becomes large on existing multi-display apparatus.
Fig. 4 is the structural representation of this screen floating device.
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 device.
Fig. 7 is the syndeton schematic diagram of screen and turning axle in this screen floating device.
Fig. 8 is the structural representation of compression assembly radially in this screen floating device.
When Fig. 9 applies for this screen floating device, adopt spring nail assembly by 4 spliced structural representations of unit screen.
Figure 10 is the concrete structure schematic diagram of Fig. 9 medi-spring screw assembly (being radial compression assembly).
Figure 11 is in this screen floating device, structural representation when turning axle and tumbler are integral type structure.
Figure 12 is in this screen floating device, when turning axle and tumbler are split-type structural, and the structural representation of hinge hook.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
A kind of screen floating device of the present embodiment, its structure, as shown in Fig. 4 or Fig. 5, comprises at least two bracing frames, each bracing frame is located at respectively rear projection box 6 both sides and is fixedly connected with screen 2 both sides; Each bracing frame is respectively equipped with rotating unit, and as shown in Figure 7, rotating unit comprises turning axle 7 and tumbler 10, and turning axle 7 is connected with screen 2 by tumbler 10, and turning axle 7 is connected with rear projection box 6 by axle bed 13.
In the present embodiment, as shown in figure 11, turning axle 7 and tumbler 10 are integral type structure, and tumbler 10 is for to be fixed on the fixed block on turning axle 7, and with the rotation of turning axle 7, tumbler 10 is and then rotation also, thereby drives screen 2 to rotate.
When this screen floating device is used, can only realize the left rotation and right rotation of screen, by regulating rotary moving cell, realize, rotate turning axle 7, tumbler 10 drives screen to realize left rotation and right rotation, and when a plurality of screen splicing, this anglec of rotation can realize the arc splicing of screen.
A kind of screen floating device of the present embodiment, its structure, as shown in Fig. 4 or Fig. 5, comprises at least two bracing frames, each bracing frame is located at respectively rear projection box 6 both sides and is fixedly connected with screen 2 both sides; Each bracing frame is respectively equipped with rotating unit, and as shown in Figure 7, rotating unit comprises turning axle 7 and tumbler 10, and turning axle 7 is connected with screen 2 by tumbler 10, and turning axle 7 is connected with rear projection box 6 by axle bed 13.
In the present embodiment, turning axle 7 and tumbler 10 are split-type structural, as shown in figure 12, tumbler 10 is hinge hook, and hinge hook comprises fixed part and hook portion, and fixed part is connected by hinge axis with hook portion, hook portion is connected with turning axle 7, and fixed part is fixedly connected with screen 2.
When this screen floating device is used, can only realize the left rotation and right rotation of screen, by regulating rotary moving cell, realize, rotate turning axle 7, tumbler 10 drives screen to realize left rotation and right rotation; Meanwhile, because turning axle 7 and tumbler 10 are that split-type structural and tumbler 10 are hinge hook, so screen itself also can be with respect to bracing frame left rotation and right rotation; When a plurality of screen splicing, this anglec of rotation can realize the arc splicing of screen.
A kind of screen floating device of the present embodiment, its structure, as shown in Fig. 4 or Fig. 5, comprises at least two bracing frames, each bracing frame is located at respectively rear projection box 6 both sides and is fixedly connected with screen 2 both sides; Each bracing frame is respectively equipped with rotating unit, and as shown in Figure 7, rotating unit comprises turning axle 7 and tumbler 10, and turning axle 7 is connected with screen 2 by tumbler 10, and turning axle 7 is connected with rear projection box 6 by axle bed 13.
In the present embodiment, as shown in figure 11, turning axle 7 and tumbler 10 can be integral structure, and tumbler 10 is for to be fixed on the fixed block on turning axle 7, and with the rotation of turning axle 7, tumbler 10 is and then rotation also, thereby drives screen 2 to rotate.
In the screen floating device of the present embodiment, each bracing frame also comprises and moves radially unit, move radially unit and comprise cam adjustment construction package 11 and radial compression assembly 12, between rear projection box 6 and axle bed 13, by radial compression assembly 12, be connected, cam is adjusted construction package 11 and is located on rear projection box 6 joint with axle bed 13.
As shown in Figure 8, radial compression assembly 12 comprises radial spring 14 and set screw 15, and radial spring 14 is placed in set screw 15, and radial spring 14 ends and axle bed 13 join.
On rear projection box 6, with the joint at axle bed two ends Shang Xia 13, cam adjustment construction package 11 is set respectively, axle bed arranges respectively the radial compression assembly 12 perpendicular to turning axle in two ends Shang Xia 13.
When the screen floating device of the present embodiment is used, can realize moving forward and backward and left rotation and right rotation of screen.When just installing, tighten set screw 15 on rear projection box 6, radial spring 14 is in compressive state, therefore radial spring 14 puts on 13 1 constant spring forces of direction of axle bed all the time, when screen need to move forward and backward, by rotating cam, adjust the flexible realization of construction package 11, as rotating cam is adjusted construction package 11, the parts that cam is adjusted in construction package 11 will move forward or backward, thereby drive whole bracing frame and screen to move forward or backward; When screen needs left rotation and right rotation, by regulating rotary moving cell, realize, rotate turning axle 7, tumbler 10 drives screen to realize left rotation and right rotation, and when a plurality of screen splicing, this anglec of rotation can realize the arc splicing of screen.
When this screen floating device is applied to a plurality of screen splicing, as shown in Figure 9, can adopt the spring nail assembly (its concrete structure be shown in Figure 10) identical with radial compression assembly 12 structures to connect adjacent two screens, so both can control preferably the piece between screen, also can make the fixing splicing of a plurality of screens.
Embodiment 4
A kind of screen floating device of the present embodiment, its structure, as shown in Fig. 4 or Fig. 5, comprises at least two bracing frames, each bracing frame is located at respectively rear projection box 6 both sides and is fixedly connected with screen 2 both sides; Each bracing frame is respectively equipped with rotating unit, and as shown in Figure 7, rotating unit comprises turning axle 7 and tumbler 10, and turning axle 7 is connected with screen 2 by tumbler 10, and turning axle 7 is connected with rear projection box 6 by axle bed 13.
In the present embodiment, as shown in figure 11, turning axle 7 and tumbler 10 can be integral structure, and tumbler 10 is for to be fixed on the fixed block on turning axle 7, and with the rotation of turning axle 7, tumbler 10 is and then rotation also, thereby drives screen 2 to rotate.
In the screen floating device of the present embodiment, each bracing frame also comprises realizes the unit that moves axially that screen moves up and down, move axially unit and comprise axial compression assembly 9 and setting nut 8, axial compression assembly 9 is placed on turning axle 7 bottoms, and turning axle 7 bottoms arrange setting nut 8.
For convenient, regulate, setting nut 8 can be knurled nut.
When the screen floating device of the present embodiment is used, can realize the left rotation and right rotation of screen and move up and down.When screen needs left rotation and right rotation, by regulating rotary moving cell, realize, rotate turning axle 7, tumbler 10 drives screen to realize left rotation and right rotation, and when a plurality of screen splicing, this anglec of rotation can realize the arc splicing of screen; When screen need to move up and down, by regulating shaft, to mobile unit, realize, rotation setting nut 8, axle spring can be compressed or be stretched, and driven rotary axle 7 rises or declines, thereby drives screen to move up or down.
A kind of screen floating device of the present embodiment, its structure, as shown in Fig. 4 or Fig. 5, comprises at least two bracing frames, each bracing frame is located at respectively rear projection box 6 both sides and is fixedly connected with screen 2 both sides; As shown in Figure 6, each bracing frame is respectively equipped with rotating unit, and as shown in Figure 7, rotating unit comprises turning axle 7 and tumbler 10, and turning axle 7 is connected with screen 2 by tumbler 10, and turning axle 7 is connected with rear projection box 6 by axle bed 13.
In the present embodiment, as shown in figure 11, turning axle 7 and tumbler 10 can be integral structure, and tumbler 10 is for to be fixed on the fixed block on turning axle 7, and with the rotation of turning axle 7, tumbler 10 is and then rotation also, thereby drives screen 2 to rotate.
Each bracing frame also comprises and moves radially unit, move radially unit and comprise cam adjustment construction package 11 and radial compression assembly 12, between rear projection box 6 and axle bed 13, by radial compression assembly 12, be connected, cam is adjusted construction package 11 and is located on rear projection box 6 joint with axle bed 13.
As shown in Figure 8, radial compression assembly 12 comprises radial spring 14 and set screw 15, and radial spring 14 is placed in set screw 15, and radial spring 14 ends and axle bed 13 join.
On rear projection box 6, with the joint at axle bed two ends Shang Xia 13, cam adjustment construction package 11 is set respectively, axle bed arranges respectively the radial compression assembly 12 perpendicular to turning axle in two ends Shang Xia 13.
Each bracing frame also comprises realizes the unit that moves axially that screen moves up and down, and moves axially unit and comprises axial compression assembly 9 and setting nut 8, and axial compression assembly 9 is placed on turning axle 7 bottoms, and turning axle 7 bottoms arrange setting nut 8.
For convenient, regulate, setting nut 8 can be knurled nut.
When this screen floating device is used, according to actual needs screen 2 positions of each elementary cell are regulated.When just installing, tighten set screw 15 on rear projection box 6, radial spring 14 is in compressive state, therefore radial spring 14 puts on 13 1 constant spring forces of direction of axle bed all the time, when screen need to move forward and backward, by rotating cam, adjust the flexible realization of construction package 11, as rotating cam is adjusted construction package 11, the parts that cam is adjusted in construction package 11 will move forward or backward, thereby drive whole bracing frame and screen to move forward or backward.When screen needs left rotation and right rotation, by regulating rotary moving cell, realize, rotate turning axle 7, tumbler 10 drives screen to realize left rotation and right rotation, and when a plurality of screen splicing, this anglec of rotation can realize the arc splicing of screen; When screen need to move up and down, by regulating shaft, to mobile unit, realize, rotation setting nut 8, axle spring can be compressed or be stretched, and driven rotary axle 7 rises or declines, thereby drives screen to move up or down.
When this screen floating device is applied to a plurality of screen splicing, as shown in Figure 9, can adopt the spring nail assembly (its concrete structure be shown in Figure 10) identical with radial compression assembly 12 structures to connect adjacent two screens, so both can control preferably the piece between screen, also can make the fixing splicing of a plurality of screens.
As mentioned above, just can realize preferably the present invention, above-described embodiment is only preferred embodiment of the present invention, is not used for limiting practical range of the present invention; Be that all equalizations of doing according to content of the present invention change and modify, all by the claims in the present invention scope required for protection, contained.
Claims (7)
1. a screen floating device, is characterized in that, comprises at least two bracing frames, and each bracing frame is located at respectively rear projection box both sides and is fixedly connected with screen sides; Each bracing frame is respectively equipped with rotating unit, and rotating unit comprises turning axle and tumbler, and turning axle is connected with screen by tumbler, and turning axle is connected with rear projection box by axle bed;
Described each bracing frame also comprises and moves radially unit, move radially unit and comprise cam adjustment construction package and radial compression assembly, between rear projection box and axle bed, by radial compression assembly, be connected, cam is adjusted construction package and is located on rear projection box the joint with axle bed;
Described each bracing frame also comprises realizes the unit that moves axially that screen moves up and down, and moves axially unit and comprises axial compression assembly and setting nut, and axial compression assembly is placed on turning axle bottom, and turning axle bottom arranges setting nut.
2. a kind of screen floating device according to claim 1, is characterized in that, described radial compression assembly comprises radial spring and set screw, and radial spring is placed in set screw, and radial spring end and axle bed join.
3. a kind of screen floating device according to claim 1, is characterized in that, described cam is adjusted construction package 2, is located at respectively on rear projection box the joint with the upper and lower two ends of axle bed; Radial compression assembly has 2, is located at respectively the upper and lower two ends of axle bed and perpendicular to turning axle.
4. a kind of screen floating device according to claim 1, is characterized in that, described axial compression assembly comprises axle spring and setscrew nut, and axle spring is located at setting nut top, and setscrew nut is located at axle spring top.
5. a kind of screen floating device according to claim 1, is characterized in that, described setting nut is knurled nut.
6. a kind of screen floating device according to claim 1, is characterized in that, described turning axle and tumbler are integral type structure, and tumbler is the fixed block being fixed on turning axle.
7. a kind of screen floating device according to claim 1, it is characterized in that, described turning axle and tumbler are split-type structural, tumbler is hinge hook, hinge hook comprises fixed part and hook portion, fixed part is connected by hinge axis with hook portion, and hook portion is connected with turning axle, and fixed part is fixedly connected with screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110191745.7A CN102279511B (en) | 2011-07-08 | 2011-07-08 | Screen floating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110191745.7A CN102279511B (en) | 2011-07-08 | 2011-07-08 | Screen floating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102279511A CN102279511A (en) | 2011-12-14 |
| CN102279511B true CN102279511B (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110191745.7A Active CN102279511B (en) | 2011-07-08 | 2011-07-08 | Screen floating device |
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| CN (1) | CN102279511B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455983B (en) * | 2014-11-28 | 2016-03-30 | 海信集团有限公司 | A kind of screen level degree adjusting mechanism and projection display equipment |
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 CN201110191745.7A patent/CN102279511B/en active Active
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 |
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| CN102279511A (en) | 2011-12-14 |
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Address after: 510670 Guangdong city of Guangzhou province Kezhu Guangzhou high tech Industrial Development Zone, Road No. 233 Patentee after: VTRON GROUP Co.,Ltd. Address before: 510663 Guangzhou province high tech Industrial Development Zone, Guangdong, Cai road, No. 6, No. Patentee before: VTRON TECHNOLOGIES Ltd. |
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Effective date of registration: 20201125 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China 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. Effective date of registration: 20201125 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: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. |