Fabricated decorative curtain wall component
By designing prefabricated decorative curtain wall components, the durability and safety issues of the sky garden structure were resolved, the overall integrity and external image of the building were improved, and rainwater was effectively diverted and utilized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING TRANSPORTATION CONSTR MANAGEMENT GRP CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-29
AI Technical Summary
Existing prefabricated building rooftop garden structures suffer from structural durability issues, a sense of spatial oppression, insufficient safety, and facade staining problems, all of which affect the quality of life for residents.
Design a prefabricated decorative curtain wall component, including a capping plate, vertical panels, suspended ceiling panels, and safety railings, which are fixed to the building's cantilever beams through connectors to form an integral structure. Sealing strips and water guiding mechanisms are installed to improve building performance and safety.
It enhances the building's integrity and safety, prevents rainwater from getting stuck, improves the building's exterior appearance, and achieves effective rainwater diversion and resource utilization.
Smart Images

Figure CN224300235U_ABST
Abstract
Description
Technical fields:
[0001] This utility model belongs to the field of prefabricated building structure technology, specifically relating to a prefabricated decorative curtain wall component. Background technology:
[0002] Against the backdrop of comprehensively promoting "high-quality construction" and "sustainable development," the design and construction of "fourth-generation housing," which emphasizes the application of ecological and low-carbon technologies, has become an important path to enhance the value of residential living and has experienced rapid development. "Fourth-generation housing" is characterized by staggered, cantilevered "sky gardens" that extend beyond the main building, showcasing a new model of urban living. However, due to the cantilevered structure and exposed beams of the "sky gardens," years of natural erosion will affect the structural durability of the building. Furthermore, the exposed structure creates a sense of spatial oppression, the lack of overall integrity in the installation of safety railings at the air-facing interface, and the accumulation of dirt on the building facade are increasingly becoming negative factors affecting the quality of life for residents. Therefore, there is an urgent need for a prefabricated decorative curtain wall component to improve the integrity of the "sky garden" interface and the durability of building performance, while simultaneously solving the problems of rainwater seepage around windows and rainwater accumulation on the facade after the building is put into use. Utility model content:
[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a prefabricated decorative curtain wall component.
[0004] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:
[0005] This utility model provides a prefabricated decorative curtain wall component, including a capping plate, a vertical panel, and a suspended ceiling plate. The suspended ceiling plate is disposed below a cantilever beam of the building, and its inner end is fixedly connected to the inner side of the cantilever beam. Several vertical rectangular tubes are fixedly disposed on the suspended ceiling plate, and the vertical rectangular tubes are distributed on the outer side of the cantilever beam. The vertical rectangular tubes are fixedly connected to the cantilever beam through a first connector. The vertical panel is disposed on the outer side of the vertical rectangular tubes and is fixedly connected to the vertical rectangular tubes. The lower end of the vertical panel is connected to the suspended ceiling plate. The capping plate is fixed to the top outer side of the cantilever beam of the building, and the capping plate is connected to the upper end of the vertical panel.
[0006] Furthermore, the first connector includes several first connecting side plates, one end of which is fixedly connected to the building cantilever beam (the main embedded part in the building cantilever beam), and the other end is fixedly connected to the vertical rectangular tube.
[0007] Furthermore, the capping plate includes an inner capping plate and an outer capping plate; the inner capping plate has an L-shaped cross-section and is fixed to the right-angled side of the top outer side of the building cantilever beam, and is fixedly connected to the horizontal and vertical surfaces of the building cantilever beam respectively; the outer capping plate is fixedly connected to the horizontal surface and the vertical rectangular tube of the building cantilever beam, and the outer capping plate is sealed to the vertical panel.
[0008] Furthermore, the device is also equipped with a safety railing, which is fixedly installed on the outer upper surface of the building cantilever beam. A gap adapted to the size of the safety railing is provided between the inner and outer capping plates. The safety railing is embedded in the gap and fixed to the building cantilever beam by embedded parts.
[0009] Furthermore, both the inner and outer capping plates are fixedly connected to the building cantilever beams using adhesive; the outer capping plate is fixedly connected to the vertical rectangular tube via a second connector; the second connector includes a first transverse square groove and at least one second connecting side plate; the first transverse square groove is located at the top of the vertical rectangular tube, one end of the second connecting side plate is fixedly connected to the capping plate, and the other end is fixedly connected to the first transverse square groove.
[0010] Furthermore, the vertical panel includes a first vertical panel and a second vertical panel distributed vertically; the upper end of the first vertical panel is sealed to the top plate, the lower end of the first vertical panel is sealed to the upper end of the second vertical panel, and the lower end of the second vertical panel is sealed to the ceiling panel; the first vertical panel is fixedly connected to the vertical rectangular tube by a third connector, the third connector including a Z-shaped connector, the three connecting surfaces of the Z-shaped connector being detachably fixedly connected to the first horizontal square groove, the vertical rectangular tube, and the first vertical panel by bolts; the second vertical panel is fixedly connected to the vertical rectangular tube by at least one set of fourth connectors; the fourth connector includes a third connecting side plate, a fixed bracket, a first L-shaped plate, and a second L-shaped plate; one end of the third connecting side plate is fixedly connected to the vertical rectangular tube, and the other end is fixedly connected to the first L-shaped plate; the fixed bracket is fixedly installed on the side wall of the second vertical panel and fixedly connected to the second L-shaped plate; the first L-shaped plate and the second L-shaped plate are detachably fixedly connected.
[0011] Furthermore, the ceiling panel is provided with a plurality of parallel ceiling square tubes; the number and position of the ceiling square tubes and the vertical rectangular tubes are adapted to each other, and the ceiling square tubes are provided with through holes adapted to the vertical rectangular tubes. The lower end of the vertical rectangular tubes passes through the ceiling square tubes and is fixedly connected to the ceiling panel; the vertical rectangular tubes and the ceiling square tubes are fixed by a structural reinforcing plate, which is fixedly connected to the ceiling square tubes on one side and to the vertical rectangular tubes on the other side.
[0012] Furthermore, a sealing strip is provided at the connection between the upper end of the first vertical panel and the top plate, and a sealing strip is provided at the connection between the lower end of the first vertical panel and the upper end of the second vertical panel; a sealing strip is provided at the connection between the lower end of the second vertical panel and the outer end of the ceiling panel, and a drip groove is provided in the sealing strip between the second vertical panel and the ceiling panel, and the water accumulated in the drip groove flows to the outside through a water guiding mechanism.
[0013] Furthermore, the inner side of the building cantilever beam is provided with several second horizontal square grooves, vertical short square tubes, a fourth connecting side plate, and an outer window casing. The second horizontal square grooves are horizontally fixedly connected to the inner side of the building cantilever beam. The vertical short square tubes are vertically installed on the second horizontal square grooves. One end of the fourth connecting side plate is fixedly connected to the vertical short square tubes, and the other end is fixedly connected to the building cantilever beam. The vertical short square tubes are fixedly connected to the ceiling square tubes. The outer window casing is fixedly connected to the lower surface of the second horizontal square grooves. The position of the outer window casing corresponds to that of the window frame installation component, and the outer window casing and the window frame installation component are sealed together by a sealing strip. A drainage hole is provided at the junction of the ceiling plate and the outer window casing. A flange is provided on the outer side of the outer window casing. The flange can cover the junction of the ceiling plate and the outer window casing, and the upper surface of the flange is sloped downwards from the inside to the outside.
[0014] Furthermore, the ceiling panel includes horizontal sections distributed inside and outside and an upwardly inclined section, and a cavity is provided between the ceiling panel and the building cantilever beam.
[0015] Furthermore, the safety railing includes several sets of vertical support members and safety railing panels; the vertical support members are fixedly installed on the outer surface of the building cantilever beam, the safety railing panels are fixed between two adjacent sets of vertical support members, and handrails are fixedly installed on the vertical support members and / or safety railing panels.
[0016] Furthermore, the capping plate slopes downwards from the outside to the inside.
[0017] The beneficial effects of this utility model are:
[0018] (1) This utility model utilizes curtain wall panel modules to cover the cantilever structure and bottom surface of the building, providing protection; at the same time, it protects the window installation components, which can be sealed to the outer window frame through sealing strips. In use, the vertical square tube is connected to the building structure through the rear end of the connecting side panel, allowing the space between the vertical square tube and the building structure to be filled with functional materials such as thermal insulation or sound insulation as needed, thereby improving the overall sustainability of building performance;
[0019] (2) This utility model completes the structural connection of the "sky garden" near-human interface such as the exterior window frame, ceiling, and safety railing with the overall design of the building curtain wall, strengthens the integrity and safety of the near-human interface, and improves the quality of the building's external image.
[0020] (3) Through the design of the water diversion structure, this utility model can accelerate the downward flow of rainwater and avoid the rainwater from sticking to the surface of the facade; at the same time, through the inward tilting structure of the top plate, it can avoid the facade from sticking to the facade while diverting rainwater into the "sky garden", thus realizing the utilization of renewable resources to a certain extent.
[0021] (4) This utility model has a simple structure and easy connection method. It can be mass-produced in the factory, and the device is easy to install and can be applied to various curtain walls. In addition, this device can strengthen the rainwater diversion structure and avoid water accumulation and seepage, as well as stains on the facade. Attached image description:
[0022] Figure 1 This is a schematic diagram of the overall structure of the prefabricated decorative curtain wall component of this utility model;
[0023] Figure 2 This is a schematic diagram of the installation structure of the prefabricated decorative curtain wall component of this utility model;
[0024] Figures 3-4 This is a partial structural schematic diagram of the prefabricated decorative curtain wall component of this utility model;
[0025] Figure 5 This is a partial schematic diagram of the prefabricated decorative curtain wall after installation.
[0026] The labels in the attached diagram are:
[0027] 1. Inner capping plate; 2. Outer capping plate; 3. First horizontal square channel; 4. First connecting side plate; 5. Vertical rectangular tube; 6. First vertical panel; 7. Second vertical panel; 8. Second connecting side plate; 9. Ceiling square tube; 10. Ceiling panel; 11. Outer window casing; 12. Second horizontal square channel; 13. Vertical short square tube; 14. Third connecting side plate; 15. Building structure cantilevered terrace; 16. Building structure embedded parts; 17. Insulation layer; 18. Window frame; 19. Window frame installation parts; 20. Flange; 21. Fourth connecting side plate; 23. Floor finishing layer; 24. Safety railing; 25. Vertical support; 26. Handrail; 27. Structural reinforcement plate; 28. Z-shaped connector. Detailed implementation method:
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0029] like Figures 1-2 As shown, this utility model provides a prefabricated decorative curtain wall component, including a capping plate, a vertical panel, a suspended ceiling plate 10, and a safety railing. The suspended ceiling plate 10 is disposed below a building cantilever beam, and its inner end is fixedly connected to the inner side of the building cantilever beam. The suspended ceiling plate 10 includes horizontally distributed sections and an upwardly inclined section. A plurality of vertical rectangular tubes 5 are fixedly disposed on the suspended ceiling plate 10, and the vertical rectangular tubes 5 are distributed on the outer side of the building cantilever beam. The vertical rectangular tubes 5 are fixedly connected to the building cantilever beam via a first connector. The vertical panel is disposed on the outer side of the vertical rectangular tubes 5 and fixedly connected to the vertical rectangular tubes 5, and its lower end is connected to the suspended ceiling plate 10. The capping plate is fixed to the top outer side of the building cantilever beam, and the capping plate is connected to the upper end of the vertical panel. The safety railing is fixedly disposed on the outer surface of the building cantilever beam.
[0030] like Figures 1-3 As shown, the first connector includes two first connecting side plates 4. One end of the first connecting side plate 4 is fixedly connected to the building cantilever beam (the main embedded part in the building cantilever beam), and the other end is fixedly connected to the vertical rectangular tube 5.
[0031] like Figures 1-3 As shown, the capping slab slopes downwards from the outside to the inside (3% drainage slope), which helps guide rainwater into the "sky garden" flower beds and prevents rainwater from clinging to the walls. The capping slab includes an inner capping slab 1 and an outer capping slab 2. The inner capping slab 1 has an L-shaped cross-section and is fixed to the right-angled side of the outer top of the building's cantilever beam, and is fixedly connected to the horizontal and vertical surfaces of the building's cantilever beam. The outer capping slab 2 is fixedly connected to the horizontal surface of the building's cantilever beam and the vertical rectangular tube 5, and is sealed to the vertical panel. A gap adapted to the size of the safety railing is provided between the inner capping slab 1 and the outer capping slab 2. The safety railing is embedded in the gap and fixed to the building's cantilever beam by embedded parts.
[0032] like Figures 1-2 As shown, the safety railing includes several sets of vertical support members 25 and safety railing panels 24. The vertical support members 25 are embedded in the gap between the inner capping plate 1 and the outer capping plate 2 and fixed to the cantilever beam of the building through embedded parts. The safety railing panels 24 are fixed between two adjacent sets of vertical support members 25. Handrails 26 are fixedly installed on the vertical support members 25 or the safety railing panels 24.
[0033] In other embodiments of this utility model, a safety railing structure may not be provided, and the inner capping plate 1 and the outer capping plate 2 may be set as an integral structure. This prefabricated decorative curtain wall component can be applied to the facade covering of public building entrances.
[0034] like Figure 3 and Figure 5As shown, both the inner capping plate 1 and the outer capping plate 2 are fixedly connected to the building cantilever beam by adhesive. The outer capping plate 2 is fixedly connected to the vertical rectangular tube 5 by a second connector. The second connector includes a first transverse square groove 3 and two second connecting side plates 8. The first transverse square groove 3 is located on the top of the vertical rectangular tube 5. One end of the second connecting side plate 8 is fixedly connected to the capping plate, and the other end is fixedly connected to the first transverse square groove 3.
[0035] like Figures 1-3 As shown, the vertical panels include a first vertical panel 6 and a second vertical panel 7, both made of stone. The upper end of the first vertical panel 6 is sealed to the outer coping plate 2, the lower end of the first vertical panel 6 is sealed to the upper end of the second vertical panel 7, and the lower end of the second vertical panel 7 is sealed to the ceiling panel 10. A sealing strip is provided at the connection between the upper end of the first vertical panel 6 and the coping plate, and a sealing strip is provided at the connection between the lower end of the first vertical panel 6 and the upper end of the second vertical panel 7. A sealing strip is provided at the connection between the lower end of the second vertical panel 7 and the outer end of the ceiling panel 10, and a drip groove is formed in the sealing strip between the second vertical panel 7 and the ceiling panel 10. The water accumulated in the drip groove flows to the outside through a water guiding mechanism. The drip groove design can intercept rainwater flowing to the lower end of the second vertical panel 7, preventing rainwater from slowly flowing down the surface of the ceiling panel 10 and preventing rainwater from falling into the activity area of the "sky garden".
[0036] like Figure 3 As shown, the first vertical panel 6 and the vertical rectangular tube 5 are fixedly connected by a third connector, which includes a Z-shaped connector 28. The three connecting surfaces of the Z-shaped connector 28 are detachably fixed to the first horizontal square groove 3, the vertical rectangular tube 5, and the first vertical panel 6 via bolts. The Z-shaped connector 28 is easy to disassemble to adjust its position in the structure, thereby adjusting the distance between the first horizontal square groove 3 and the vertical rectangular tube 5. This allows for adjustment of the thickness of the outer side of the assembly, enabling it to adapt to building structures of different sizes.
[0037] like Figure 3 As shown, the second vertical panel 7 and the vertical rectangular tube 5 are fixedly connected by two sets of fourth connectors. The fourth connectors include a third connecting side plate 14, a fixed bracket, a first L-shaped plate, and a second L-shaped plate. One end of the third connecting side plate 14 is fixedly connected to the vertical rectangular tube 5, and the other end is fixedly connected to the first L-shaped plate. The fixed bracket is fixedly installed on the side wall of the second vertical panel 7 and fixedly connected to the second L-shaped plate. The first L-shaped plate and the second L-shaped plate are detachably fixedly connected.
[0038] like Figures 1-3 and Figure 5As shown, the ceiling panel 10 is provided with several parallel ceiling square tubes 9. The number and position of the ceiling square tubes 9 and the vertical rectangular tubes 5 are adapted to each other. The ceiling square tubes 9 are provided with through holes adapted to the vertical rectangular tubes 5. The lower ends of the vertical rectangular tubes 5 pass through the ceiling square tubes 9 and are fixedly connected to the ceiling panel 10. The vertical rectangular tubes 5 and the ceiling square tubes 9 are fixed by a structural reinforcement plate, which is fixedly connected to the ceiling square tubes 9 on one side and to the vertical rectangular tubes 5 on the other. This utility model has a simple structure, a convenient connection method, can be mass-produced in the factory, and is easy to install, making it suitable for various curtain walls. In addition, this device can strengthen the rainwater diversion structure, avoiding water accumulation and seepage, and preventing dirt from sticking to the facade.
[0039] like Figures 1-2 and Figure 4 As shown, the inner side of the building cantilever beam is provided with a second horizontal square channel 12, vertical short square tubes 13, a fourth connecting side plate 21, and an outer window casing 11, the same number as the ceiling square tubes 9. The second horizontal square channel 12 is horizontally fixedly connected to the inner side of the building cantilever beam, and the vertical short square tubes 13 are vertically installed on the second horizontal square channel 12. One end of the fourth connecting side plate 21 is fixedly connected to the vertical short square tube 13, and the other end is fixedly connected to the building cantilever beam (the main embedded part in the building cantilever beam). The vertical short square tubes 13 are fixedly connected to the ceiling square tubes 9, and a structural reinforcing plate is provided at the connection between the vertical short square tubes 13 and the ceiling square tubes 9.
[0040] like Figures 1-2 and Figure 4 As shown, the outer window frame 11 is fixedly connected to the lower surface of the second transverse square groove 12. The outer window frame 11 corresponds to the window frame mounting component 19, and the outer window frame 11 and the window frame mounting component 19 are sealed together by a sealing strip, which can protect the window frame mounting component 19 of the building structure. A drain hole is provided at the junction of the ceiling panel 10 and the outer window frame 11, through which water on the ceiling panel 10 can flow out. A flange 20 is provided on the outer side of the outer window frame 11. The thickness of the flange 20 is less than the thickness of the outer window frame 11, and the upper end face of the flange 20 is provided with a downward slope (3% drainage slope) from the inside to the outside. The flange 20 can, on the one hand, cover the junction of the ceiling panel 10 and the outer window frame 11 to improve aesthetics, and on the other hand, it can drain the water that flows into the drain hole from the ceiling panel 10, further preventing rainwater from sticking to the wall and preventing the slow intrusion of rainwater.
[0041] This invention protects the surface of the cantilevered terrace of the building structure through the inner capping plate 1, the outer capping plate 2, the first vertical panel 6, the second vertical panel 7, and the suspended ceiling plate 10. Simultaneously, the outer window casing 11 protects the window frame mounting components 19 of the window frame 18. The window frame mounting components 19 and the outer window casing 11 are sealed together by a sealing strip 21. In use, the vertical rectangular tube 5, the suspended ceiling square tube 9, and the vertical short square tube 11 are all connected to the building structure through the rear end of the connecting side plate to form a cavity, which can be filled with an insulation layer 17 as needed. The insulation layer 17 can be filled with insulation materials or functional materials such as sound insulation materials, depending on the requirements.
[0042] The above are merely preferred embodiments of this utility model. The scope of protection of this utility model is not limited to the above embodiments. All technical solutions within the scope of this utility model are within the scope of protection of this utility model. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should be considered within the scope of protection of this utility model.
Claims
1. A prefabricated decorative curtain wall component, characterized in that, Including the coping, vertical panels and suspended ceiling panels (10); The ceiling panel (10) is installed below the cantilever beam of the building, and the inner end of the ceiling panel (10) is fixedly connected to the inner side of the cantilever beam of the building; a number of vertical rectangular tubes (5) are fixedly installed on the ceiling panel (10), and the vertical rectangular tubes (5) are distributed on the outer side of the cantilever beam of the building, and the vertical rectangular tubes (5) are fixedly connected to the cantilever beam of the building through the first connector; The vertical panel is set on the outside of the vertical rectangular tube (5) and is fixedly connected to the vertical rectangular tube (5), and the lower end of the vertical panel is connected to the ceiling panel (10). The capping plate is fixed to the top of the outer side of the building's cantilever beam, and the capping plate is connected to the upper end of the vertical panel.
2. The prefabricated decorative curtain wall component according to claim 1, characterized in that, The first connector includes several first connecting side plates (4), one end of which is fixedly connected to the building cantilever beam and the other end is fixedly connected to the vertical rectangular tube (5).
3. The prefabricated decorative curtain wall component according to claim 1, characterized in that, The capping plate includes an inner capping plate (1) and an outer capping plate (2); The inner pressure plate (1) has an L-shaped cross section and is fixed on the right-angled side of the top of the outer side of the building cantilever beam, and is fixedly connected to the horizontal and vertical surfaces of the building cantilever beam respectively. The outer capping plate (2) is fixedly connected to the horizontal plane of the building cantilever beam and the vertical rectangular tube (5), and the outer capping plate (2) is sealed to the vertical panel.
4. The prefabricated decorative curtain wall component according to claim 3, characterized in that, Safety railings are also provided, which are fixedly installed on the outer upper surface of the building's cantilever beams; A gap adapted to the size of the safety railing is provided between the inner capping plate (1) and the outer capping plate (2). The safety railing is embedded in the gap and fixed to the cantilever beam of the building by embedded parts.
5. The prefabricated decorative curtain wall component according to claim 3, characterized in that, The inner capping plate (1) and the outer capping plate (2) are both fixedly connected to the building cantilever beam by adhesive. The outer top plate (2) and the vertical rectangular tube (5) are fixedly connected by a second connector; The second connector includes a first transverse square groove (3) and at least one second connecting side plate (8); the first transverse square groove (3) is disposed on the top of the vertical rectangular tube (5), and one end of the second connecting side plate (8) is fixedly connected to the top plate and the other end is fixedly connected to the first transverse square groove (3).
6. The prefabricated decorative curtain wall component according to claim 5, characterized in that, The vertical panel includes a first vertical panel (6) and a second vertical panel (7) distributed vertically. The upper end of the first vertical panel (6) is sealed to the top plate, the lower end of the first vertical panel (6) is sealed to the upper end of the second vertical panel (7), and the lower end of the second vertical panel (7) is sealed to the ceiling plate (10). The first vertical panel (6) is fixedly connected to the vertical rectangular tube (5) by a third connector. The third connector includes a Z-shaped connector (28). The three connecting surfaces of the Z-shaped connector (28) are detachably fixedly connected to the first horizontal square groove (3), the vertical rectangular tube (5) and the first vertical panel (6) by bolt fasteners. The second vertical panel (7) is fixedly connected to the vertical rectangular tube (5) by at least one set of fourth connectors; the fourth connectors include a third connecting side plate (14), a fixed bracket, a first L-shaped plate and a second L-shaped plate; one end of the third connecting side plate (14) is fixedly connected to the vertical rectangular tube (5) and the other end is fixedly connected to the first L-shaped plate; the fixed bracket is fixedly installed on the side wall of the second vertical panel (7) and fixedly connected to the second L-shaped plate; the first L-shaped plate and the second L-shaped plate are detachably fixedly connected.
7. The prefabricated decorative curtain wall component according to claim 6, characterized in that, A sealing strip is provided at the connection between the upper end of the first vertical panel (6) and the top plate, and a sealing strip is provided at the connection between the lower end of the first vertical panel (6) and the upper end of the second vertical panel (7); A sealing strip is provided at the connection between the lower end of the second vertical panel (7) and the outer end of the ceiling panel (10), and a drip groove is provided on the sealing strip between the second vertical panel (7) and the ceiling panel (10). The water accumulated in the drip groove flows to the outside through the water guiding mechanism.
8. The prefabricated decorative curtain wall component according to claim 1, characterized in that, The ceiling panel (10) is provided with a number of parallel ceiling square tubes (9); The number and position of the ceiling square tube (9) and the vertical rectangular tube (5) are adapted to each other. The ceiling square tube (9) is provided with a through hole adapted to the vertical rectangular tube (5). The lower end of the vertical rectangular tube (5) passes through the ceiling square tube (9) and is fixedly connected to the ceiling panel (10). The vertical rectangular tube (5) and the ceiling square tube (9) are fixed together by a structural reinforcement plate. The structural reinforcement plate is fixedly connected to the ceiling square tube (9) on one hand and to the vertical rectangular tube (5) on the other hand.
9. The prefabricated decorative curtain wall component according to claim 8, characterized in that, The inner side of the building cantilever beam is provided with several second horizontal square grooves (12), vertical short square tubes (13), fourth connecting side plates (21) and outer window frames (11); The second horizontal square groove (12) is horizontally fixedly connected to the inner side of the building cantilever beam, the vertical short square tube (13) is vertically installed on the second horizontal square groove (12), one end of the fourth connecting side plate (21) is fixedly connected to the vertical short square tube (13), and the other end is fixedly connected to the building cantilever beam; the vertical short square tube (13) is fixedly connected to the ceiling square tube (9); The outer window sleeve (11) is fixedly connected to the lower surface of the second transverse square groove (12). The outer window sleeve (11) corresponds to the position of the window mounting component (19), and the outer window sleeve (11) and the window mounting component (19) are sealed together by a sealing strip. A drain hole is provided at the junction of the ceiling panel (10) and the outer window frame (11). A flange (20) is provided on the outer side of the outer window frame (11). The flange (20) can cover the junction of the ceiling panel (10) and the outer window frame (11), and the upper surface of the flange (20) is provided with a downward slope from the inside to the outside.
10. The prefabricated decorative curtain wall component according to claim 4, characterized in that, The ceiling panel (10) includes horizontal sections distributed inside and outside and an upwardly inclined section, and a cavity is provided between the ceiling panel (10) and the building cantilever beam; The safety railing includes several sets of vertical support members (25) and safety railing panels (24); The vertical support (25) is fixedly installed on the outer surface of the building cantilever beam, and the safety railing (24) is fixed between two adjacent sets of vertical support (25). Handrails (26) are fixedly installed on the vertical support (25) and / or the safety railing (24).