CN217400034U - Top beam connecting member for unit type window wall system and window wall system - Google Patents
Top beam connecting member for unit type window wall system and window wall system Download PDFInfo
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- CN217400034U CN217400034U CN202221198725.2U CN202221198725U CN217400034U CN 217400034 U CN217400034 U CN 217400034U CN 202221198725 U CN202221198725 U CN 202221198725U CN 217400034 U CN217400034 U CN 217400034U
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- connecting piece
- transverse groove
- buckle
- horizontal
- wall system
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Abstract
The application discloses a top beam connecting elements and window wall system for unit formula window wall system belongs to the technical field of curtain installation. It is including a transverse groove, one side that a transverse groove is close to the middle part is fixed with transverse groove buckling part, transverse groove buckling part is formed with preceding inserting groove with the tip of a transverse groove, it has preceding connecting piece to peg graft in the preceding inserting groove, one side that a transverse groove kept away from preceding connecting piece is pegged graft and is had the back connecting piece, preceding connecting piece with one side that back connecting piece moves towards each other is used for being connected with a crossbeam. The installation quantity of connecting piece and back connecting piece before this application scheme can be selected according to the atress condition, and need not wholly thicken the effect in order to reach reinforcing crushing resistance ability to the horizontal groove of butt joint, compares in traditional way, save material and expense to construction convenience need not the operation of looking at the sky, improves installer's security and the expense of having saved hanging flower basket or scaffold frame.
Description
Technical Field
The application relates to the technical field of curtain wall installation, in particular to a top cross beam connecting component for a unit type window wall system and the window wall system.
Background
The unit curtain wall has high positioning precision and high curtain wall surface smoothness, and may be installed in site simply and operated together with civil engineering structure.
Referring to fig. 1, in the field of building curtain walls, a full length rail 10 is generally vertical and is used for carrying objects or bearing pressure. However, in order to increase the compression resistance of the full length rail, it is common practice to increase the thickness of the full length rail, which often means an increase in cost.
Based on this, the present application provides a top beam connecting member for a unit type window wall system and a window wall system, so as to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
To help improve the compression resistance of the through-length rail and reduce costs, the present application provides a top rail connecting member for a unit window wall system and a window wall system.
The application provides a top crossbeam connecting elements and window wall system for unit formula window wall system adopts following technical scheme:
first aspect of the invention
The utility model provides a top crossbeam connecting elements for unit formula window wall system, includes a transverse groove, one side that a transverse groove is close to the middle part is fixed with transverse groove buckle portion, transverse groove buckle portion and the tip of a transverse groove are formed with preceding inserting groove, it has preceding connecting piece to peg graft in the preceding inserting groove, one side that a transverse groove kept away from preceding connecting piece is pegged graft and is had the back connecting piece, preceding connecting piece with one side that back connecting piece moves towards each other is used for being connected with a crossbeam.
Through adopting above-mentioned technical scheme, preceding connecting piece and the shaping of top transverse groove pre-assembly, will push up the transverse groove and install the back on the major structure, lean on one side of top crossbeam in the side of preceding connecting piece after that, then peg graft the back connecting piece and peg graft in top transverse groove, utilize preceding connecting piece and back connecting piece to fix the top crossbeam. The installation quantity of connecting piece and back connecting piece before this application scheme can be selected according to the atress condition, and need not wholly thicken in order to reach the effect of reinforcing crushing resistance ability to the horizontal groove of butt joint, compares in traditional way, save material and expense to construction convenience need not to be restricted by environmental factor, improves installer's security and the expense of having saved hanging flower basket or scaffold.
Optionally, the top transverse groove comprises a transverse groove horizontal connecting portion and a transverse groove vertical connecting portion, the transverse groove vertical connecting portion is fixed on one side of the transverse groove horizontal connecting portion in the width direction, the transverse groove buckling portion is fixed on one side of the transverse groove horizontal connecting portion close to the middle portion, a front connecting piece buckling portion is fixed at one end of the transverse groove vertical connecting portion far away from the transverse groove horizontal connecting portion, and one end of the front connecting piece is clamped in the front connecting piece buckling portion.
Through adopting above-mentioned technical scheme, utilize horizontal groove buckle portion and preceding connecting piece buckle portion to carry out the joint to preceding connecting piece, be favorable to improving the stability of preceding connecting piece joint in a horizontal groove to the equipment of being convenient for improves the packaging efficiency.
Optionally, the front connecting piece comprises a front connecting piece horizontal part and a front connecting piece vertical part, the front connecting piece horizontal part is vertically connected with the front connecting piece vertical part, a front connecting piece horizontal insertion part is fixed at the end part of the front connecting piece horizontal part, and the front connecting piece horizontal insertion part is inserted between the transverse groove buckling part and the top transverse groove; and a front connecting piece vertical insertion part is formed on one side of the end part of the front connecting piece vertical part, and the front connecting piece vertical insertion part is inserted into one end of the top transverse groove.
Through adopting above-mentioned technical scheme, the shape and the structure of preceding connecting piece can carry out the concrete design according to the atress condition, have improved the commonality, and the stability of preceding connecting piece installation has been ensured in the setting of the vertical grafting portion of preceding connecting piece horizontal grafting portion and preceding connecting piece, also is favorable to subsequent dismouting, provides great convenience for curtain maintenance in the future.
Optionally, the top cross slot further comprises a buckle connecting portion, the buckle connecting portion is far away from the front connecting piece, a buckle is detachably mounted on the buckle connecting portion, and one end of the buckle is connected with the rear connecting piece in a clamped mode.
Through adopting above-mentioned technical scheme, it is fixed to preceding connecting piece to utilize the buckle, ensures the stability of top crossbeam installation, and the setting of buckle also provides great convenience for the dismouting maintenance of connecting piece and back connecting piece before the future simultaneously.
Optionally, the rear connecting piece comprises a rear connecting piece horizontal part and a rear connecting piece vertical part, the rear connecting piece horizontal part is vertically connected with the rear connecting piece vertical part, a rear connecting piece horizontal inserting part is fixed at the end part of the rear connecting piece horizontal part, and the rear connecting piece horizontal inserting part is inserted between the transverse groove buckling part and the top transverse groove; the end part of the vertical part of the rear connecting piece is fixedly provided with a vertical inserting part of the rear connecting piece, and the vertical inserting part of the rear connecting piece is inserted into one end of the pinch plate.
By adopting the technical scheme, when the rear connecting piece is installed, the number of the required rear connecting pieces is judged according to the field condition, the rear connecting pieces are inserted into the top transverse groove, and finally the rear connecting pieces are fixed by utilizing the buckle plates. Such setting can require nimble buckle structure of adjusting the horizontal groove of top according to different atresss, makes its adaptation in different back connecting piece, makes the back connecting piece can effectively fix the top crossbeam.
The buckle plate comprises a buckle plate mounting portion, a buckle plate supporting portion and a buckle plate buckling portion, the buckle plate mounting portion is integrally formed with the buckle plate supporting portion, a buckle plate mounting groove is formed between the end portions of the buckle plate supporting portion and is used for allowing one end of the buckle plate connecting portion to penetrate through, the side wall of the buckle plate supporting portion is abutted to a rear connecting piece, the buckle plate buckling portion is fixed to one end of the buckle plate supporting portion, the end of the rear connecting piece is clamped in the buckle plate buckling portion, and the buckle plate buckling portion is used for being connected with a top beam in a sealing mode.
Through adopting above-mentioned technical scheme, the buckle can effectively be fixed the back connecting piece, has ensured the leakproofness simultaneously to can select different buckles according to the back connecting piece of difference, improve the suitability.
Optionally, the side wall of the buckle plate is fixed with a buckle plate bulge abutted against the side wall of the rear connecting piece.
Through adopting above-mentioned technical scheme, utilize the buckle arch can further improve the fastening nature that back connecting piece and buckle are connected to make things convenient for constructor to assemble buckle and back connecting piece, improve the installation effectiveness.
Optionally, one side of the front connecting piece and one side of the rear connecting piece facing the top transverse groove are provided with connecting piece protrusions.
Through adopting above-mentioned technical scheme, utilize the connecting piece arch can improve the fastening nature that preceding connecting piece and top cross slot and back connecting piece and top cross slot are connected, make connection between them more closely, further improve firm effect, the equipment of also being convenient for simultaneously.
Second aspect of the invention
A window wall system is provided with the top beam connecting member for the unit type window wall system.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the installation quantity of connecting piece and back connecting piece before this application scheme can be selected according to the atress condition, and need not wholly thicken the effect in order to reach reinforcing crushing resistance ability to the horizontal groove of butt joint, compares in traditional way, save material and expense to construction convenience need not to be restricted by environmental factor, improves installer's security and the expense of having saved hanging flower basket or scaffold frame.
2. When the rear connecting piece is installed, the number of the required rear connecting pieces is judged according to the field condition, the rear connecting pieces are inserted into the top transverse groove, and finally the rear connecting pieces are fixed by utilizing the buckle plates. Such setting can require nimble buckle structure of adjusting the horizontal groove of top according to different atresss, makes its adaptation in different back connecting piece, makes the back connecting piece can effectively fix the top crossbeam.
3. Preceding connecting piece and back connecting piece are direct to be pieced together with a transverse groove and are inserted the installation, and back connecting piece can be fixed temporarily with sealed glue at the factory with a transverse groove, follow-up use screw with back connecting piece and a transverse groove installation in major structure, cancelled welding, anticorrosive link, effectively improved the joint strength and the steadiness of efficiency of construction and curtain.
Drawings
Fig. 1 is a schematic vertical sectional view of a through-length rail in the related art.
Fig. 2 is a schematic vertical sectional view of the overall structure of the embodiment of the present application.
Fig. 3 is a schematic view mainly showing the connection between the top transverse groove and the front connecting member according to the embodiment of the present application.
Fig. 4 is a schematic view mainly showing a front connection member according to an embodiment of the present application.
Fig. 5 is a schematic view of the embodiment of the present application showing primarily the front and rear connectors installed in the top cross slot.
Description of reference numerals:
10. making the transverse material long; 1. a top beam; 11. sealing rubber strips; 2. a main body structure; 21. switching code pieces; 4. a top transverse groove; 40. a top spacer; 41. a horizontal groove horizontal connecting part; 42. a transverse groove vertical connecting part; 43. a gusset plate connecting portion; 44. a front connector buckling part; 45. a transverse slot fastening part; 5. a front connector; 50. a first screw; 51. a front connecting piece horizontal portion; 52. a front link vertical portion; 53. a front connector horizontal plug-in part; 54. a front connecting piece vertical insertion part; 6. buckling the plate; 60. a second screw; 61. a pinch plate mounting part; 62. a gusset plate support portion; 63. a buckle plate buckling part; 64. the buckle plate is convex; 7. a rear connector; 71. a rear attachment horizontal portion; 72. a rear connector vertical portion; 73. a rear connector horizontal plug-in part; 74. a rear connector vertical plug-in part; 8. the connecting piece is convex.
Detailed Description
The present application is described in further detail below with reference to figures 2-5.
The embodiment of the application discloses a top beam connecting member for a unit type window wall system. Referring to fig. 2, in order to absorb the structural deviation of the main structure 2, the adaptor weight 21 is welded to the main structure 2, and the horizontal position and the elevation of the curtain wall unit are positioned. The curtain wall unit comprises a top cross beam 1, wherein the top cross beam 1 is connected with the switching code piece 21 through a connecting member, so that the curtain wall unit is installed on the switching code piece 21.
Referring to fig. 2, the top cross member connecting member includes a top cross groove 4, a front connector 5 and a rear connector 7 are inserted into the top cross groove 4, and the side of the front connector 5 and the side of the rear connector 7 facing each other are connected to the top cross member 1.
Referring to fig. 2, a top isolation gasket 40 is bonded to the bottom side of the adaptor code 21, the top isolation gasket 40 is disposed between the adaptor code 21 and the top transverse groove 4, and the top isolation gasket 40 is used to separate the adaptor code 21 from the top transverse groove 4, thereby preventing the adaptor code 21 from directly contacting the top transverse groove 4 to cause corrosion.
Referring to fig. 2 and 3, top transverse groove 4 includes transverse groove horizontal connecting portion 41, transverse groove vertical connecting portion 42 and buckle connecting portion 43, transverse groove horizontal connecting portion 41 and the laminating of top spacer 40 level, transverse groove vertical connecting portion 42 integrated into one piece keeps away from indoor one side in transverse groove horizontal connecting portion 41, transverse groove vertical connecting portion 42 links to each other with transverse groove horizontal connecting portion 41 is perpendicular, transverse groove vertical connecting portion 42 keeps away from the one end integrated into one piece of transverse groove horizontal connecting portion 41 and has preceding connecting piece buckle portion 44, transverse groove horizontal connecting portion 41 deviates from one side of top spacer 40 and is close to position integrated into one piece at its middle part and has transverse groove buckle portion 45, be formed with preceding inserting groove between transverse groove buckle portion 45 and preceding connecting piece buckle portion 44, preceding connecting piece 5 is in preceding inserting groove.
Referring to fig. 3 and 4, the front connecting member 5 includes a front connecting member horizontal portion 51 and a front connecting member vertical portion 52, the front connecting member horizontal portion 51 and the front connecting member vertical portion 52 are integrally formed and vertically connected, a front connecting member horizontal insertion portion 53 is integrally formed at an end portion of the front connecting member horizontal portion 51, and the front connecting member horizontal insertion portion 53 is inserted into a first fastening groove formed by the transverse groove fastening portion 45 and the transverse groove horizontal connecting portion 41; a front connecting piece vertical inserting part 54 is formed at one side of the end part of the front connecting piece vertical part 52, and the front connecting piece vertical inserting part 54 is inserted into a second clamping groove formed by the front connecting piece clamping part 44 and the transverse groove vertical connecting part 42.
With reference to fig. 2, the plug-in mounting of the front connector 5 in the top transverse groove 4 is achieved by means of the features described above. After the front connector 5 and the top lateral groove 4 are assembled in advance, the front connector 5 and the top lateral groove 4 are mounted on the adaptor code member 21 by using the first screw 50.
Referring to fig. 5, the buckle plate connecting portion 43 is integrally formed at one end of the horizontal connecting portion 41 of the transverse groove away from the vertical connecting portion 42 of the transverse groove, the buckle plate connecting portion 43 is vertically connected with the horizontal connecting portion 41 of the transverse groove, and the buckle plate 6 is fixed at the end of the buckle plate connecting portion 43 through a second screw 60. Wherein, buckle 6 includes buckle installation department 61, buckle supporting part 62 and buckle portion 63, buckle installation department 61 and buckle supporting part 62 integrated into one piece, is formed with the buckle mounting groove that supplies the one end of buckle connecting portion 43 to wear to locate between buckle installation department 61 and the tip of buckle supporting part 62, and second screw 60 passes buckle installation department 61, buckle connecting portion 43 and buckle supporting part 62 and realizes the connection of three.
Meanwhile, the buckle plate buckling part 63 is integrally formed at one end of the buckle plate supporting part 62 far away from the top transverse groove 4, a rear insertion groove is formed between the buckle plate buckling part 63 and the transverse groove buckling part 45, and the rear connecting piece 7 is inserted in the rear insertion groove.
Referring to fig. 5, the rear connector 7 includes a rear connector horizontal portion 71 and a rear connector vertical portion 72, the rear connector horizontal portion 71 and the rear connector vertical portion 72 are integrally formed and vertically connected, a rear connector horizontal insertion portion 73 is integrally formed at an end portion of the rear connector horizontal portion 71, and the rear connector horizontal insertion portion 73 is inserted into a third fastening groove formed by the transverse groove fastening portion 45 and the transverse groove horizontal connecting portion 41; the side surface of the rear connecting piece vertical part 72 is abutted against the side surface of the pinch plate supporting part 62, and the pinch plate supporting part 62 is used for supporting the rear connecting piece vertical part 72; a rear connecting piece vertical inserting part 74 is formed at one side of the end part of the rear connecting piece vertical part 72, and the rear connecting piece vertical inserting part 74 is inserted into a fourth clamping groove formed by the clamping plate supporting part 62 and the clamping plate clamping part 63; by utilizing the characteristics, the plug-in mounting of the rear connecting piece 7 in the top transverse groove 4 is realized.
In order to further improve the stability of the front connecting piece 5 and the rear connecting piece 7 inserted in the top transverse groove 4, a connecting piece protrusion 8 is integrally formed on one side of the front connecting piece horizontal part 51 and one side of the rear connecting piece horizontal part 71 facing the top transverse groove 4, and the connecting piece protrusion 8 is abutted against the inner side of the top transverse groove 4. In addition, one side of the buckle plate supporting part 62 facing the rear connecting piece 7 is integrally formed with a buckle plate bulge 64, the buckle plate bulge 64 is abutted against the side face of the rear connecting piece 7, and the stability of the rear connecting piece 7 inserted in the top transverse groove 4 is further improved by the buckle plate bulge 64.
Referring to fig. 2, in addition, a sealing rubber strip 11 is connected to the bottom side of the top transverse groove 4 far away from the indoor space, and the sealing rubber strip 11 is connected with one side of the top transverse beam 1 in a sealing mode. The top transverse groove 4 is of a strip-shaped structure, a plurality of front connecting pieces 5 and rear connecting pieces 7 with different lengths can be inserted into the inner side of the top transverse groove 4 at intervals according to requirements, during installation, the top transverse groove 4 and the front connecting pieces 5 are positioned on the transfer code piece 21 according to paying-off, and then the top transverse groove 4 and the front connecting pieces 5 are fixed on the transfer code piece 21 by penetrating through the front connecting pieces 5 and the top transverse groove 4 from bottom to top through the first screws 50.
The top transverse groove 4 and the front connecting piece 5 are fixed on the switching code piece 21, one side of the top beam 1 leans against the side face of the front connecting piece 5, then the rear connecting piece 7 is inserted into the top transverse groove 4, the side face of the rear connecting piece 7 is abutted against the other side of the top beam 1, then the buckle plate 6 is respectively connected with the rear connecting piece 7 and the top transverse groove 4, one side end part of the top transverse groove 4, which is close to the buckle plate 6, is in sealing connection with the two side faces of the top beam 1, and finally the top transverse groove 4 and the receiving opening of the switching code piece 21 are sealed by glue.
The implementation principle of the top beam connecting member for the unit type window wall system is as follows: the installation quantity of connecting piece 5 and back connecting piece 7 before this application scheme can be selected according to the atress condition, and need not wholly thicken in order to reach the effect of reinforcing crushing resistance 4 to the top cross slot 4, compares in traditional way, save material and expense to construction convenience need not to be restricted by environmental factor, improves installer's security and the expense of having saved hanging flower basket or scaffold.
The embodiment of the application also discloses a window wall system, and the top beam connecting member for the unit type window wall system is installed in the window wall system.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. A top rail connecting member for a unit window wall system, characterized in that: including top transverse groove (4), one side that top transverse groove (4) are close to the middle part is fixed with transverse groove buckle portion (45), transverse groove buckle portion (45) and the tip of top transverse groove (4) are formed with preceding inserting groove, it has preceding connecting piece (5) to peg graft in the preceding inserting groove, one side that preceding connecting piece (5) were kept away from in top transverse groove (4) is pegged graft and is had back connecting piece (7), preceding connecting piece (5) with one side that back connecting piece (7) moved towards each other is used for being connected with top crossbeam (1).
2. A top rail connecting member for a unit window wall system as claimed in claim 1, wherein: the top transverse groove (4) comprises a transverse groove horizontal connecting portion (41) and a transverse groove vertical connecting portion (42), the transverse groove vertical connecting portion (42) is fixed on one side, in the width direction, of the transverse groove horizontal connecting portion (41), the transverse groove buckling portion (45) is fixed on one side, close to the middle portion, of the transverse groove horizontal connecting portion (41), the end, far away from the transverse groove horizontal connecting portion (41), of the transverse groove vertical connecting portion (42) is fixed with a front connecting piece buckling portion (44), and the one end of the front connecting piece (5) is clamped in the front connecting piece buckling portion (44).
3. A top rail connecting member for a unit window wall system as claimed in claim 1, wherein: the front connecting piece (5) comprises a front connecting piece horizontal part (51) and a front connecting piece vertical part (52), the front connecting piece horizontal part (51) is vertically connected with the front connecting piece vertical part (52), a front connecting piece horizontal insertion part (53) is fixed at the end part of the front connecting piece horizontal part (51), and the front connecting piece horizontal insertion part (53) is inserted between the transverse groove buckling part (45) and the top transverse groove (4); a front connecting piece vertical inserting part (54) is formed on one side of the end part of the front connecting piece vertical part (52), and the front connecting piece vertical inserting part (54) is inserted into one end of the top transverse groove (4).
4. A top rail connection member for a unitary window wall system as defined in claim 1, wherein: top cross slot (4) still include buckle connecting portion (43), connecting piece (5) set up before buckle connecting portion (43) are kept away from, demountable installation has buckle (6) on buckle connecting portion (43), the one end and the back connecting piece (7) joint of buckle (6).
5. A top rail connecting member for a unit window wall system as set forth in claim 4, wherein: the rear connecting piece (7) comprises a rear connecting piece horizontal part (71) and a rear connecting piece vertical part (72), the rear connecting piece horizontal part (71) is vertically connected with the rear connecting piece vertical part (72), a rear connecting piece horizontal insertion part (73) is fixed at the end part of the rear connecting piece horizontal part (71), and the rear connecting piece horizontal insertion part (73) is inserted between the transverse groove buckling part (45) and the top transverse groove (4); the end part of the rear connecting piece vertical part (72) is fixed with a rear connecting piece vertical insertion part (74), and the rear connecting piece vertical insertion part (74) is inserted into one end of the buckle plate (6).
6. A top rail connecting member for a unit window wall system as set forth in claim 4, wherein: buckle (6) are including buckle installation department (61), buckle supporting part (62) and buckle buckling part (63), buckle installation department (61) with buckle supporting part (62) integrated into one piece, buckle installation department (61) with buckle (6) mounting groove in locating is worn to be formed with the one end that supplies buckle connecting portion (43) between the tip of buckle supporting part (62), the lateral wall and back connecting piece (7) butt of buckle supporting part (62), buckle buckling part (63) are fixed in buckle supporting part (62) and keep away from the one end of buckle installation department (61), the one end joint of back connecting piece (7) is in buckle buckling part (63), buckle buckling part (63) are used for with top beam (1) sealing connection.
7. A top rail connecting member for a unit window wall system as set forth in claim 4, wherein: the side wall of the buckle plate (6) is fixed with a buckle plate bulge (64) which is abutted against the side wall of the rear connecting piece (7).
8. A top rail connecting member for a unit window wall system as claimed in claim 1, wherein: and connecting piece protrusions (8) are arranged on one sides of the front connecting piece (5) and the rear connecting piece (7) facing the top transverse groove (4).
9. A window wall system having installed therein a top rail coupling member for a unit window wall system according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221198725.2U CN217400034U (en) | 2022-05-18 | 2022-05-18 | Top beam connecting member for unit type window wall system and window wall system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221198725.2U CN217400034U (en) | 2022-05-18 | 2022-05-18 | Top beam connecting member for unit type window wall system and window wall system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217400034U true CN217400034U (en) | 2022-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221198725.2U Active CN217400034U (en) | 2022-05-18 | 2022-05-18 | Top beam connecting member for unit type window wall system and window wall system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217400034U (en) |
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- 2022-05-18 CN CN202221198725.2U patent/CN217400034U/en active Active
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Effective date of registration: 20220914 Address after: 518051 5F, ante building, No.5 Qimin Road, Langshan No.2 Road, North District of Science Park, Nanshan District, Shenzhen, Guangdong Province Patentee after: China Shipping Construction Co.,Ltd. Patentee after: Far east curtain wall (Zhuhai) Co.,Ltd. Patentee after: NETFORTUNE (SHANGHAI) ALUMINIUM WORKS CO.,LTD. Address before: 518051 5F, ante building, No.5 Qimin Road, Langshan No.2 Road, North District of Science Park, Nanshan District, Shenzhen, Guangdong Province Patentee before: China Shipping Construction Co.,Ltd. Patentee before: Far east curtain wall (Zhuhai) Co.,Ltd. |