Curtain wall drainage structure, system and glass curtain wall

Abstract

This application discloses a curtain wall drainage structure, system, and glass curtain wall. The curtain wall drainage structure includes vertical keels, horizontal keels, and glass panels. The horizontal keels include a first surface and a second surface. The first surface is fixedly connected to the vertical keels, and the second surface faces the outside and has a first connecting part extending to the outside. The interior surface of the glass panel is sealed to the second surface. A drainage component is provided on the exterior surface of the first connecting part. A horizontal guide cavity is formed between the interior side of the drainage component, the bottom surface of the first connecting part, and the top surface of the glass panel. A ventilated passage communicating with the outside atmosphere is formed inside the drainage component, and the ventilated passage communicates with the horizontal guide cavity. A vertical guide cavity is formed between the side end face of the glass panel and the side of the vertical keel, and the horizontal guide cavity communicates with the vertical guide cavity. This effectively solves the problems of existing curtain wall waterproofing structures being simple, relying on sealant which is prone to failure, water accumulation causing backflow, and complex construction and leakage.

Description

Technical Field

[0001] This application relates to the field of building curtain wall waterproofing, and more particularly to a curtain wall drainage structure, system, and glass curtain wall. Background Technology

[0002] Existing framed glass curtain walls mostly use aluminum profiles or steel as the keel, with glass panels fixed in place by exposed frame plates or concealed frame blocks. The watertightness and airtightness of the curtain wall rely entirely on the application of silicone weather-resistant sealant at the panel joints. The sealing quality is greatly affected by environmental conditions and the skill of the workers, and leakage is prone to occur after the sealant ages and fails. This sealing-type waterproofing design has a simple construction form and poor overall waterproofing performance. Once a defect occurs in the sealing area, rainwater can easily diffuse and seep inward, affecting the overall performance of the curtain wall. Moreover, the entire area sealant application process is complex and not conducive to on-site schedule management.

[0003] Therefore, developing a curtain wall structure that reduces on-site caulking and achieves waterproofing through structural assembly has become an urgent technical problem to be solved in the field. Summary of the Invention

[0004] The purpose of this application is to provide a curtain wall drainage structure, system, and glass curtain wall to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: Firstly, a curtain wall drainage structure includes vertical joists arranged vertically along the building wall, horizontal joists arranged horizontally along the building wall, and glass panels. The horizontal keel has a first surface and a second surface that are perpendicular to each other. The first surface is fixedly connected to the vertical keel, the second surface faces the outside, and a first connecting part extending outward is provided on the second surface. The interior surface of the glass panel is sealed to the second surface below the first connection portion; It also includes a drainage component, which is fixedly disposed on the outdoor side surface of the first connection portion; A transverse flow guide cavity is formed between the indoor side of the drainage component, the bottom surface of the first connecting part, and the top surface of the glass panel; The drainage component has a ventilation passage extending along the length of the transverse keel and communicating with the outdoor atmosphere. The ventilation passage is connected to the transverse guide cavity. A vertical flow guide cavity extending along the height direction of the vertical keel is formed between the side end face of the glass panel and the side face of the vertical keel. The transverse guide cavity is connected to the vertical guide cavity.

[0006] In an optional embodiment, at least one water collection element is provided in the vertical guide cavity, and each water collection element is fixed to the outdoor surface of the vertical keel.

[0007] In an optional embodiment, the water collection element is disposed at the junction of the vertical keel and the horizontal keel.

[0008] In an optional embodiment, the drainage assembly includes a first seal and a visible frame pressure plate, the first seal being fixed to the outdoor surface of the first connection portion; The exposed frame pressure plate is fixed on the outdoor surface of the first sealing element, and a ventilation passage is formed between the plate and the first sealing element. The exposed frame pressure plate is provided with at least one drainage hole, which is connected to the ventilation passage.

[0009] In an optional embodiment, the first seal is provided with a water-draining portion; One end of the water-absorbing part is connected to the outdoor surface of the glass panel, and the other end faces the drain hole to guide water that has seeped into the glass panel into the drain hole.

[0010] In an optional embodiment, a cover is included, which is disposed on the outdoor surface of the exposed frame pressure plate and forms a drainage cavity with open ends and internal passage between the cover and the exposed frame pressure plate. The drainage cavity is connected to the drainage hole and is used to allow water flowing out of the drainage hole to be discharged outward.

[0011] In an optional embodiment, the outdoor surface of the vertical keel is provided with a second connecting portion, and the second connecting portion is provided with a keel groove; A heat insulation component is installed inside the keel groove; A second sealing element is provided on one side surface of the heat insulation member facing the glass panel, and the second sealing element abuts against the outdoor edge of the side end face of the glass panel.

[0012] Secondly, a curtain wall drainage system is proposed, including the above-mentioned curtain wall drainage structure, wherein the vertical keel is arranged with multiple horizontal keels at intervals along the height direction; The glass panel is disposed between two adjacent horizontal keels; The first connecting part of the upper horizontal keel, the drainage component and the top surface of the glass panel enclose the horizontal flow guide cavity; Each of the lateral guide cavities is connected to the vertical guide cavity.

[0013] In an optional embodiment, there are multiple vertical keels, and an installation space is formed between two adjacent vertical keels; Multiple horizontal keels are arranged within the installation space, and one end of each horizontal keel is connected to one of the adjacent vertical keels, and the other end is connected to another vertical keel.

[0014] Thirdly, a glass curtain wall is proposed, including the aforementioned curtain wall drainage system and building wall surface; Multiple curtain wall drainage systems are arranged sequentially along the horizontal direction of the building wall; The two adjacent curtain wall drainage systems are respectively installed on both sides of the same vertical keel and share the same vertical keel.

[0015] The technical solutions provided in this application have the following advantages compared with the prior art: This application provides a curtain wall drainage structure comprising a horizontal keel, glass panels, and drainage components. The second side of the horizontal keel faces the outside and has a first connecting part extending outward. The glass panels are sealed to the second side below the first connecting part. The drainage components are fixed to the outdoor side of the first connecting part. Together, these three components form a horizontal guide cavity. The drainage components have a ventilated passage that communicates with the outdoor atmosphere and the horizontal guide cavity. Simultaneously, the side end face of the glass panel and the side face of the vertical keel form a vertical guide cavity, which is connected to the horizontal guide cavity. Combining the rain curtain principle, the ventilated passage balances the air pressure inside and outside the cavity, preventing rainwater from seeping into the room. The drainage components and the water collection components in the vertical guide cavity then achieve orderly drainage of accumulated water. This effectively solves the problems of existing curtain wall waterproofing structures being simple, relying on sealant which is prone to failure, water accumulation which is prone to backflow, and complex construction which is prone to leakage. This technical solution effectively reduces the infiltration force of rainwater, lowers the probability of leakage, simplifies construction, ensures rapid drainage of accumulated water, and improves the stability and reliability of curtain wall waterproofing. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0019] Figure 1 This is a schematic diagram of a curtain wall drainage structure provided in an embodiment of this application; Figure 2 This is a schematic diagram of the drainage assembly provided in this application; Figure 3 A structural schematic diagram of the vertical flow guide cavity and water collection component provided in this application; Figure 4 This is a schematic diagram of the structure of the snap-on cap provided in this application; Figure 5 A schematic diagram of the structure of the first connector provided in this application; Figure 6 This application provides a structural schematic diagram of a curtain wall drainage system; Figure 7 This is a structural schematic diagram of a glass curtain wall provided for this application.

[0020] Explanation of reference numerals in the attached figures: 1. Vertical keel; 11. Second connecting part; 111. Keel groove; 12. Heat insulation component; 13. Second sealing component; 2. Horizontal keel; 21. First side; 22. Second side; 23. First connecting part; 3. Drainage assembly; 31. First seal; 311. Water-lubricating part; 32. Exposed frame pressure plate; 321. Drain hole; 33. Cover; 34. Drainage chamber; 35. Opening; 4. Lateral flow guide cavity; 5. Breathing channels; 6. Vertical flow guide cavity; 7. Water collection components; 8. Glass panel; 100. Curtain wall drainage system; 200. Glass curtain wall; 201. First curtain wall drainage system; 202. Second curtain wall drainage system; 203. Third curtain wall drainage system. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0023] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0024] To address the technical problems of existing curtain wall waterproofing technologies, such as simple construction, easy failure of sealant, easy backflow of accumulated water, complex construction, and easy leakage, this application provides a curtain wall drainage structure. By rationally arranging the horizontal keel 2, glass panels 8, and drainage components 3, a drainage structure is constructed that connects the horizontal drainage cavity 4 and the vertical drainage cavity 6. Combining the principle of equal pressure chamber, the air pressure inside and outside the cavity is kept balanced through the venting passage 5 in the drainage component 3, eliminating the wind pressure difference force for rainwater infiltration. At the same time, the infiltrated water is orderly guided and discharged through the connected drainage cavity, thereby effectively reducing the probability of curtain wall leakage, simplifying construction procedures, improving the stability and reliability of curtain wall waterproofing performance, and effectively solving many defects of traditional curtain wall waterproofing.

[0025] See figure Figures 1 to 5 A curtain wall drainage structure includes vertical keel 1 arranged vertically along the building wall, horizontal keel 2 arranged horizontally along the building wall, and glass panel 8.

[0026] The vertical keel 1 is a rectangular aluminum alloy profile, running the length of the building wall and fixedly connected to the main building structure by bolts or other connectors. The horizontal keel 2 is a rectangular aluminum alloy profile, running horizontally along the building wall, with its ends fixedly connected to the two adjacent vertical keels 1 by welding or bolts. The glass panel 8 is preferably tempered insulated glass, installed within the frame formed by the vertical keels 1 and the horizontal keels 2.

[0027] It should be noted that the vertical keel 1 and the horizontal keel 2 together form the curtain wall support frame. The glass panel 8 is fixed and sealed to the horizontal keel 2 by bolts and sealants, achieving effective isolation between the indoor and outdoor environments. For ease of structural explanation, the following section uses the combination of a single vertical keel 1, a single horizontal keel 2, and a single glass panel 8 as an example to describe the waterproofing structure of this scheme in detail; where the indoor side refers to the side facing the interior of the building (e.g., the side facing the interior of the building). Figure 1 The middle arrow points from left to right), the outdoor side is the side opposite to the indoor side (e.g., Figure 1 The middle arrow points from right to left.

[0028] In an optional embodiment, the horizontal keel 2 includes a first surface 21 and a second surface 22. The first surface 21 extends along the interior and is fixedly connected to the vertical keel 1. The second surface 22 faces the outside and is provided with a first connecting part 23 extending in the direction of the outside. Specifically, the first surface 21 and the second surface 22 are arranged at an angle, for example, perpendicular to each other. The first surface 21 extends horizontally in the indoor direction and is fixedly connected to the side of the vertical keel 1 by screws. The second surface 22 faces the outdoor direction and is provided with a first connecting part 23 extending horizontally in the outdoor direction.

[0029] In this embodiment, the transverse keel 2 is an extruded aluminum alloy profile, and the first surface 21, the second surface 22, and the first connecting portion 23 are preferably integrally formed. The first connecting portion 23 is generally plate-shaped, extending outward from the outdoor surface of the second surface 22, and has a top surface and a bottom surface. The top surface of the first connecting portion 23 is used to support the upper glass panel 8, that is, the glass panel 8 located above the transverse keel 2 is supported on the top surface of the first connecting portion 23; the bottom surface of the first connecting portion 23 is opposite to the top surface of the glass panel 8 located below the transverse keel 2, with a predetermined gap between them, which constitutes the basic space of the transverse guide cavity 4 described below. In other words, the first connecting portion 23 serves two functions simultaneously: its top surface supports the upper glass panel 8, and its bottom surface forms a gap with the lower glass panel 8.

[0030] The interior surface of the glass panel 8 is sealed to the second surface 22 below the first connection 23.

[0031] Specifically, below the first connecting part 23, a first sealing strip A is provided between the outdoor surface of the second surface 22 and the indoor surface of the glass panel 8. The glass panel 8, the first sealing strip A and the transverse keel 2 are fixedly connected by bolts or other means, and a dry seal is achieved between the first sealing strip and the glass panel 8.

[0032] See Figure 2 The curtain wall drainage structure of this technical solution also includes a drainage component 3, which is fixedly installed on the outdoor surface of the first connecting part 23; a transverse flow guide cavity 4 is formed between the indoor side of the drainage component 3, the bottom surface of the first connecting part 23 and the top surface of the glass panel 8; the transverse flow guide cavity 4 extends along the length direction of the transverse keel 2.

[0033] It should be noted that at the junction of the drainage component 3 and the glass panel 8 (i.e., the area where the indoor side of the drainage component 3 meets the outdoor surface of the glass panel 8), even if there is a seal in this area, there is a tiny gap due to the structure. This tiny gap is arranged along the length of the glass panel 8 and is connected to the vertical guide cavity 6. When outdoor rainwater flows along the surface of the glass panel 8 under wind pressure, it will seep into the drainage component 3 through the gap at the junction. Part of it will be discharged outdoors through the drainage component 3 itself, and the other part will flow into the vertical guide cavity 6. The drainage component 3 also forms a ventilated passage 5 that extends along the length of the transverse keel 2 and is connected to the outdoor atmosphere. The ventilated passage 5 and the transverse guide cavity 4 are interconnected in terms of air pressure through the tiny gap at the junction of the drainage component 3 and the glass panel 8, and the two together form an isobaric system.

[0034] Through the above structure, the transverse guide cavity 4 is connected to the outdoor atmosphere via the ventilation passage 5 and the drainage component 3. When the outdoor wind pressure changes, the air pressure inside the transverse guide cavity 4 can change synchronously with the outdoor atmosphere through the ventilation passage 5, thereby maintaining a balance between the air pressure inside and outside the transverse guide cavity 4. Since there is no pressure difference, rainwater will not continue to seep into the indoor side of the glass panel 8 under the action of wind pressure, effectively reducing the tendency of rainwater to continue to seep inward.

[0035] Additionally, see Figure 3 A vertical airflow guide cavity 6 extending along the height of the vertical keel 1 is formed between the side end face of the glass panel 8 and the side face of the vertical keel 1. The horizontal airflow guide cavity 4 is connected to the vertical airflow guide cavity 6, so the air pressure of the horizontal airflow guide cavity 4 and the vertical airflow guide cavity 6 is the same. In this way, after the outside air enters the vertical airflow guide cavity 6 from the horizontal airflow guide cavity 4, due to the lack of air pressure difference, rainwater cannot continue to seep into the interior of the vertical airflow guide cavity 6 from the outside side.

[0036] In summary, the curtain wall drainage structure of this technical solution ensures that the horizontal guide cavity 4 is aligned with the outdoor wind pressure, effectively preventing rainwater from penetrating further into the glass panel 8. Rainwater seeping into the drainage component 3 along the glass panel 8 is partially discharged outdoors through the vertical guide cavity 6, and the remaining portion is directly discharged outdoors via the drainage component 3, effectively preventing water accumulation on the surface of the glass panel 8 or its spread to the interior. Therefore, this technical solution does not rely on traditional full-circumference sealant sealing methods, but achieves a "drainage and sealing combination" waterproofing effect through structural combination. Utilizing the principle of equal pressure chambers reduces seepage dynamics, effectively improving the water tightness of the curtain wall. Furthermore, the use of a dry seal between the glass panel 8 and the second surface 22 of the horizontal keel 2 simplifies the on-site sealant application process and reduces reliance on manual operation skills, which is beneficial for construction schedule control and improving the durability of the sealing system.

[0037] In an optional embodiment, see [reference] Figure 3 At least one water collection element 7 is provided in the vertical guide cavity 6, and each water collection element 7 is fixed on the outdoor surface of the vertical keel 1.

[0038] Specifically, the water collection component 7 is preferably a PVC water receiving hopper, roughly shaped like a sieve or trough, with a base plate and two side guards. One end of the water collection component 7 is fixed to the outdoor surface of the vertical keel 1 by screws or clips, located inside the vertical flow guide cavity 6, while the other end extends suspended towards the glass panel 8. The water collection component 7 is located at or near the bottom of the vertical flow guide cavity 6, with its base plate gradually sloping downwards from the fixed end towards the outdoor side, allowing the collected water to flow smoothly outwards. Depending on actual usage needs, one, two, or even more water collection components 7 may be provided.

[0039] In a preferred embodiment, the water collection component 7 is located at the junction of the vertical keel 1 and the horizontal keel 2. That is, along the height direction of the vertical keel 1, a water collection component 7 is installed at the junction of each horizontal keel 2 and the vertical keel 1. For example, in a multi-story building, a horizontal keel 2 is installed on the vertical keel 1 at the height position corresponding to each floor, and a water collection component 7 is fixedly installed at the junction of each horizontal keel 2 and the vertical keel 1. The water collection component 7 of each floor works independently, responsible for collecting the water that seeps into the vertical guide cavity 6 from the section above and guiding it to the outside.

[0040] Based on the above structure, this solution solves the technical problem in existing curtain wall drainage systems where rainwater easily flows downwards within the vertical cavity, causing backflow of water into the lower curtain wall due to the presence of water collection components 7 at each junction of the horizontal keel 2 and the vertical keel 1. Furthermore, because each junction of the horizontal keel 2 and the vertical keel 1 is equipped with a water collection component 7, the vertical drainage cavity 6 is divided into multiple drainage sections by the water collection components 7. Each water collection component 7 is responsible for intercepting and discharging the water flowing down from the section above it, significantly reducing the amount of water continuing to flow downwards.

[0041] As an alternative implementation, see also Figure 2 The drainage component 3 includes a first sealing member 31 and a frame pressure plate 32. The first sealing member 31 is fixed to the outdoor surface of the first connecting part 23. The frame pressure plate 32 is fixed to the outdoor surface of the first sealing member 31 and forms a ventilation passage 5 between the frame pressure plate 32 and the first sealing member 31. At least one drainage hole 321 is provided on the frame pressure plate 32, and the drainage hole 321 is connected to the ventilation passage 5.

[0042] Furthermore, the first seal 31 is provided with a water-draining part 311; one end of the water-draining part 311 is connected to the outdoor surface of the glass panel 8, and the other end faces the drain hole 321 to guide water that seeps into the glass panel 8 into the drain hole 321.

[0043] Specifically, the first sealing element 31 is a continuous rubber strip, extending along the length of the transverse keel 2. Preferably, a PVC heat insulation strip is fixedly installed on the outdoor surface of the first connecting part 23, and the first sealing element 31 has a mounting hole. Fasteners are inserted through the mounting hole and fixedly connected to the PVC heat insulation strip, thereby achieving the fixed installation of the first sealing element 31 and the first connecting part 23. The indoor surface of the first sealing element 31 is a continuous plane, which, together with the bottom surface of the first connecting part 23 and the top surface of the glass panel 8, forms the aforementioned transverse guide cavity 4.

[0044] As an optional implementation, the exposed frame pressure plate 32 is an extruded aluminum alloy profile, extending continuously along the length of the transverse keel 2. Assembly holes are provided on the exposed frame pressure plate 32 at positions corresponding to the mounting holes of the first sealing member 31. The aforementioned fasteners pass sequentially through the assembly holes and mounting holes and extend into the PVC thermal insulation strip, thereby achieving a fixed connection between the exposed frame pressure plate 32, the first sealing member 31, and the first connecting part 23, while simultaneously pressing and fixing the glass panel 8 to the transverse keel 2. After installation, a gap is left between the indoor surface of the exposed frame pressure plate 32 and the outdoor surface of the first sealing member 31, extending along the length of the transverse keel 2 to form a ventilation passage 5.

[0045] In the embodiment without the cover 33, the exposed frame pressure plate 32 is provided with at least one drainage hole 321. The drainage hole 321 penetrates the wall thickness of the exposed frame pressure plate 32. One end of the drainage hole 321 is connected to the ventilation passage 5, and the other end is connected to the outside. The ventilation passage 5 and the transverse guide cavity 4 are interconnected in terms of air pressure, so that the transverse guide cavity 4 can sense changes in outdoor wind pressure through the ventilation passage 5, thereby achieving air pressure balance.

[0046] Furthermore, to accommodate the dual functions of ventilation and drainage of the drainage hole 321, the drainage hole 321 is preferably configured as a circular, square, or elliptical through hole with sufficient flow cross-section, ensuring smooth airflow while allowing rainwater introduced by the water-draining section 311 to drain. For example, the drainage hole 321 adopts an elongated opening, with rainwater draining from the lower part and airflow converging from the upper part.

[0047] In addition, as a preferred embodiment, the exposed frame pressure plate 32 is provided with a plurality of drainage holes 321 at intervals along its length. The spacing between adjacent drainage holes 321 can be reasonably set according to the height of the curtain wall and the local rainfall, for example, the spacing is 500mm to 1000mm. This facilitates smooth airflow convergence and conduction, while improving rainwater drainage efficiency and preventing rainwater from stagnating and accumulating in the ventilation passage 5.

[0048] In addition, to better channel rainwater from the junction of the glass panel 8 and the first seal 31 to the outside, the first seal 31 of this technical solution is provided with a water-draining part 311. One end of the water-draining part 311 is connected to the outdoor surface of the glass panel 8, and the other end faces the drain hole 321 to guide water that has seeped into the glass panel 8 into the drain hole 321.

[0049] It should be noted that, since the top surface of the first connecting part 23 supports the upper glass panel 8, its bottom surface forms a transverse guide cavity 4 with the lower glass and the drainage component 3. Therefore, when water flows along the surface of the upper glass panel 8 until it flows to the junction of the first seal 31 and the upper glass panel 8, this junction corresponds to the water-draining part 311 of the first seal 31. The water-draining part 311 forms an arc-shaped guide surface from the end connected to the upper glass panel 8 toward the drainage hole 321, so as to receive the rainwater flowing in from the upper glass panel 8 and guide the rainwater to the drainage hole 321, effectively preventing the rainwater from continuing to spread along the indoor side of the first connecting part 23, and finally being discharged outdoors through the drainage hole 321.

[0050] As an optional implementation method, see [link / reference]. Figure 4The curtain wall drainage structure also includes a cover 33. The cover 33 is placed on the outdoor surface of the exposed frame pressure plate 32 and forms a drainage cavity 34 with openings 35 at both ends and internal passage between the cover 33 and the exposed frame pressure plate 32. The drainage cavity 34 is connected to the drainage hole 321 and is used to discharge the water flowing out of the drainage hole 321 to the outside.

[0051] Specifically, the cover 33 is installed along the entire length of the transverse keel 2. The cover 33 is fastened to the outdoor surface of the exposed frame pressure plate 32 by a snap-fit ​​mechanism, that is, the two side edges of the cover 33 and the two side edges of the exposed frame pressure plate 32 interlock to form a detachable connection. A predetermined space is left between the indoor surface of the cover 33 and the outdoor surface of the exposed frame pressure plate 32, and this space extends along the length of the transverse keel 2 to form a drainage cavity 34.

[0052] The drainage hole 321 on the exposed frame pressure plate 32 is connected to the drainage cavity 34. Specifically, the drainage hole 321 penetrates the wall thickness of the exposed frame pressure plate 32, with one end connected to the ventilation passage 5 and the other end connected to the hollow drainage cavity 34. Thus, water guided to the drainage hole 321 by the water applicator 311 flows into the hollow drainage cavity 34 from the drainage hole 321. The drainage cavity 34 has openings 35 at both ends along the length of the transverse keel 2, which are directly connected to the outdoor atmosphere. This allows the ventilation passage 5 to remain connected to the outdoor atmosphere via the drainage hole 321, the drainage cavity 34, and the openings 35, thereby achieving the isobaric function of the transverse drainage cavity 4. Through the above path, the transverse drainage cavity 4 achieves air pressure balance with the outdoor atmosphere, which is one of the ways this structure achieves isobaric waterproofing.

[0053] The hollow drainage cavity 34 has openings 35 at both ends along the length of the transverse keel 2. Water flowing into the hollow drainage cavity 34 flows along the bottom wall of the hollow drainage cavity 34 to both ends under the action of gravity, and is finally discharged to the outside from the openings 35 at both ends.

[0054] As an optional implementation method, see [link / reference]. Figure 5 The outdoor surface of the vertical keel 1 is provided with a second connecting part 11, and the second connecting part 11 is provided with a keel groove 111; a heat insulation component 12 is installed in the keel groove 111; a second sealing component 13 is provided on the side surface of the heat insulation component 12 facing the glass panel 8, and the second sealing component 13 abuts against the outdoor edge of the side end face of the glass panel 8.

[0055] Specifically, the second connecting part 11 is a protruding structure on the outdoor surface of the vertical keel 1, and the outdoor surface of the second connecting part 11 is provided with a groove with an opening facing the outside, namely the keel groove 111. The keel groove 111 is provided along the height direction of the vertical keel 1 and is used to accommodate and install the heat insulation component 12.

[0056] The heat insulation element 12 is a PVC heat insulation strip, the shape of which matches the keel groove 111. It serves both heat insulation and sealing functions and is installed in the keel groove 111 by snap-fit ​​or embedding. One end of the heat insulation element 12 is connected to the keel groove 111, and the other end extends away from the keel groove 111. An installation groove is provided on the side of the extension direction for installing the second sealing element 13. The second sealing element 13 is an EPDM rubber extrusion. The second sealing element 13 extends towards the side end face of the glass panel 8, and its surface abuts against the side end face of the glass panel 8. Specifically, the second sealing element 13 abuts against the outdoor edge of the side end face of the glass panel 8 (since the glass panel 8 has a set thickness, the thickness area on the side closer to the outside in its thickness direction is defined as the outdoor edge). That is, the second sealing element 13 contacts the edge of the side end face of the glass panel 8 that is closer to the outside, forming a line contact or a small area contact, thereby preventing rainwater from seeping from the outdoor side of the glass panel 8 into the indoor side of the glass panel 8. In addition, apart from the contact area occupied by the second sealing member 13, there is a gap between the side end face of the glass panel 8 and the side face of the vertical keel 1. This gap is the main space of the vertical guide cavity 6, so as to realize the connection between the horizontal guide cavity 4 and the vertical guide cavity 6, thereby realizing that the vertical guide cavity 6 is consistent with the external air pressure.

[0057] Therefore, this solution replaces the traditional glue sealing with a dry sealing method by setting a second connecting part 11 and a keel groove 111 on the vertical keel 1, and installing a heat insulation component 12 and a second sealing component 13. This avoids the dependence on the skill level of construction personnel for on-site glue application and simplifies the construction process. The rubber material has better aging resistance than the sealant, effectively solving the problem of seal failure caused by glue aging and cracking. The second sealing component 13 only abuts against the outdoor edge of the side end face of the glass panel 8, forming a sealing barrier on the outdoor side to prevent rainwater from seeping in along the side end face. The side end face of the glass panel 8 is not sealed and is left as a gap, thereby ensuring the connection between the vertical guide cavity 6 and the horizontal guide cavity 4, so that the vertical guide cavity 6 is consistent with the external air pressure, preventing rainwater that seeps in from the outdoor side of the vertical guide cavity 6 from continuing to seep into the indoor side of the vertical guide cavity 6.

[0058] In one embodiment, see Figure 6 A curtain wall drainage system 100 includes the above-mentioned curtain wall drainage structure, wherein a plurality of horizontal keels 2 are arranged at intervals along the height direction of the vertical keel 1; glass panels 8 are disposed between two adjacent horizontal keels 2; the first connecting part 23 of the upper horizontal keel 2, the drainage component 3 and the top surface of the glass panel 8 enclose a horizontal guide cavity 4; each horizontal guide cavity 4 is connected to the vertical guide cavity 6.

[0059] Specifically, in actual curtain wall projects, a vertical keel 1 typically needs to be paired with multiple horizontal keels 2 to form a complete curtain wall support frame. In this embodiment, multiple horizontal keels 2 are arranged at equal intervals or according to design requirements along the height direction of the vertical keel 1. A space for installing glass panels 8 is formed between two adjacent horizontal keels 2. The upper end of each glass panel 8 is fixedly connected by the upper horizontal keel 2, and its lower end abuts against the top surface of the first connecting part 23 of the lower horizontal keel 2 or is fixed by other positioning components.

[0060] For each layer of horizontal keel 2, the bottom surface of its first connecting part 23 is opposite to the top surface of the glass panel 8 located below the first connecting part 23, with a predetermined gap between them; the drainage component 3 is fixed to the outdoor surface of the first connecting part 23, and the indoor side of the drainage component 3, together with the bottom surface of the first connecting part 23 and the top surface of the glass panel 8, forms a horizontal guide cavity 4 extending along the length direction of the horizontal keel 2.

[0061] Each layer of transverse guide cavity 4 is connected to a vertical guide cavity 6. Specifically, the vertical guide cavity 6 is arranged along the height direction of the vertical keel 1, and the end of each layer of transverse guide cavity 4 is connected to the vertical keel at the junction of the transverse keel 2 and the vertical keel 1. Thus, a structure is formed in which multiple layers of transverse guide cavities 4 share a single vertical guide cavity 6 along the height direction of the vertical keel 1.

[0062] In summary, this solution solves the technical problem that a single waterproof structural unit can only handle single-layer joint waterproofing and cannot cover the waterproofing needs of the entire curtain wall height by arranging multiple horizontal keels 2 at intervals along the height direction of the vertical keels 1 and setting horizontal drainage cavities 4 for each floor. By repeating the above-mentioned single waterproof structure along the vertical direction, multi-level and layered drainage is achieved, effectively realizing continuous drainage coverage throughout the entire height of the curtain wall.

[0063] In another embodiment, there are multiple vertical keels 1, and an installation space B is formed between two adjacent vertical keels 1; multiple horizontal keels 2 are arranged in the installation space, and one end of each horizontal keel 2 is connected to one of the adjacent vertical keels 1, and the other end is connected to another vertical keel 1.

[0064] Specifically, in actual curtain wall projects, the curtain wall facade is typically composed of a grid-like framework formed by multiple vertical keels 1 and multiple horizontal keels 2. In this embodiment, the multiple vertical keels 1 are arranged parallel to each other at intervals along the horizontal direction of the building wall, forming a rectangular installation space between adjacent vertical keels 1 for installing the horizontal keels 2 and glass panels 8. Within this installation space, multiple horizontal keels 2 are installed, each horizontal keel 2 is arranged horizontally, and its left and right ends are fixedly connected to the two adjacent vertical keels 1 by angle brackets, screws, or other connectors, thereby forming a stable grid-like framework.

[0065] In this grid-like framework, at each junction of a horizontal keel 2 and a vertical keel 1 (i.e., at each corner of the grid), a curtain wall drainage structure as described above is provided. That is, each junction has an independent horizontal drainage cavity 4, drainage component 3, ventilation passage 5, and corresponding sealing structure. These curtain wall drainage structures are arranged in a matrix in both the horizontal and vertical directions. Adjacent structures are interconnected through shared vertical keels 1 or horizontal keels 2, and are also connected through shared vertical drainage cavities 6 (on the same vertical keel 1), forming a waterproof drainage network covering the entire curtain wall facade.

[0066] In addition, this application also proposes a glass curtain wall 200, see reference. Figure 7 It includes multiple curtain wall drainage systems and building walls; multiple curtain wall drainage systems are arranged sequentially along the horizontal direction of the building walls; two adjacent curtain wall drainage systems are respectively set on both sides of the same vertical keel 1 and share the vertical keel 1.

[0067] Specifically, in actual curtain wall projects, a single curtain wall drainage system can cover a certain width of the curtain wall facade (e.g., the area defined by two vertical keels 1 and multiple horizontal keels 2 between them). When the width of the building wall exceeds the coverage of a single curtain wall drainage system, multiple curtain wall drainage systems need to be spliced ​​together horizontally to form a complete curtain wall facade.

[0068] In this embodiment, multiple curtain wall drainage systems are arranged sequentially along the horizontal direction of the building wall. A vertical keel 1 serves as the boundary between two adjacent curtain wall drainage systems, and this vertical keel 1 simultaneously belongs to two adjacent curtain wall drainage systems. Specifically, each vertical keel 1 has two opposing sides (i.e., the left and right sides of its exterior surface). One side mates with the end of the horizontal keel 2 and the end face of the glass panel 8 in one curtain wall drainage system, while the other side mates with the end of the horizontal keel 2 and the end face of the glass panel 8 in another adjacent curtain wall drainage system. In other words, two adjacent curtain wall drainage systems are respectively located on both sides of the same vertical keel 1, sharing this vertical keel 1 as a common supporting member.

[0069] Taking a building wall with a first curtain wall drainage system 201, a second curtain wall drainage system 202, and a third curtain wall drainage system 203 arranged from left to right as an example, the rightmost vertical keel 1 of the first curtain wall drainage system 201 is also the leftmost vertical keel 1 of the second curtain wall drainage system 202; the rightmost vertical keel 1 of the second curtain wall drainage system 202 is also the leftmost vertical keel 1 of the third curtain wall drainage system 203, and so on. In this way, multiple curtain wall drainage systems are spliced ​​together horizontally to cover the entire length of the building wall.

[0070] In this embodiment, vertical guide cavities 6 are provided on both sides of the shared vertical keel 1 to simultaneously serve the horizontal guide cavities 4 on both the left and right sides. That is, water collected by the drainage component 3 in the first curtain wall drainage system 100 on the left flows into the vertical guide cavity 6 of the vertical keel 1, and water collected by the drainage component 3 in the second curtain wall drainage system 202 on the right also flows into the vertical guide cavity 6 of the vertical keel 1. Multiple water collecting elements 7 are arranged at intervals along the height direction in the vertical guide cavity 6. Each water collecting element 7 corresponds to the position of one layer of horizontal keel 2 and is used to collect water flowing in from the horizontal guide cavities 4 on the upper left and right sides and guide it to the outside. This solution solves the technical problem that a single curtain wall drainage system cannot cover a large width of building wall by arranging multiple curtain wall drainage systems sequentially along the horizontal direction of the building wall and allowing adjacent systems to share the same vertical keel 1.

[0071] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0072] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0073] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0074] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0075] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0076] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0077] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0078] The above description describes specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A curtain wall drainage structure, comprising vertical keels arranged vertically along the building wall, horizontal keels arranged horizontally along the building wall, and glass panels, characterized in that: The horizontal keel has a first surface and a second surface that are perpendicular to each other. The first surface is fixedly connected to the vertical keel, the second surface faces the outside, and a first connecting part extending outward is provided on the second surface. The interior surface of the glass panel is sealed to the second surface below the first connection portion; It also includes a drainage component, which is fixedly disposed on the outdoor side surface of the first connection portion; A transverse flow guide cavity is formed between the indoor side of the drainage component, the bottom surface of the first connecting part, and the top surface of the glass panel; The drainage component has a ventilation passage extending along the length of the transverse keel and communicating with the outdoor atmosphere. The ventilation passage is connected to the transverse guide cavity. A vertical flow guide cavity extending along the height direction of the vertical keel is formed between the side end face of the glass panel and the side face of the vertical keel. The transverse guide cavity is connected to the vertical guide cavity.

2. The curtain wall drainage structure according to claim 1, characterized in that, The vertical guide cavity is provided with at least one water collection component, and each water collection component is fixed to the outdoor surface of the vertical keel.

3. A curtain wall drainage structure according to claim 2, characterized in that, The water collection device is located at the junction of the vertical keel and the horizontal keel.

4. A curtain wall drainage structure according to claim 1, characterized in that, The drainage assembly includes a first sealing element and an exposed frame pressure plate, wherein the first sealing element is fixed to the outdoor surface of the first connection portion; The exposed frame pressure plate is fixed on the outdoor surface of the first sealing element, and a ventilation passage is formed between the plate and the first sealing element. The exposed frame pressure plate is provided with at least one drainage hole, which is connected to the ventilation passage.

5. A curtain wall drainage structure according to claim 4, characterized in that, The first seal is provided with a water-draining section; One end of the water-absorbing part is connected to the outdoor surface of the glass panel, and the other end faces the drain hole to guide water that has seeped into the glass panel into the drain hole.

6. A curtain wall drainage structure according to claim 4, characterized in that, The drainage assembly includes a cover that is placed on the outdoor surface of the exposed frame plate and forms a drainage cavity with open ends and through interior between the cover and the exposed frame plate. The drainage cavity is connected to the drainage hole and is used to discharge water flowing out of the drainage hole.

7. A curtain wall drainage structure according to claim 1, characterized in that, The outdoor surface of the vertical keel is provided with a second connecting part, and the second connecting part is provided with a keel groove; A heat insulation component is installed inside the keel groove; A second sealing element is provided on one side surface of the heat insulation member facing the glass panel, and the second sealing element abuts against the outdoor edge of the side end face of the glass panel.

8. A curtain wall drainage system, comprising the curtain wall drainage structure according to any one of claims 1-7, characterized in that, The vertical keel is provided with multiple horizontal keels spaced apart along the height direction; The glass panel is disposed between two adjacent horizontal keels; The first connecting part of the upper horizontal keel, the drainage component and the top surface of the glass panel enclose the horizontal flow guide cavity; Each of the lateral guide cavities is connected to the vertical guide cavity.

9. A curtain wall drainage system according to claim 8, characterized in that, There are multiple vertical keels, and an installation space is formed between two adjacent vertical keels; multiple horizontal keels are arranged in the installation space, and one end of each horizontal keel is connected to one of the adjacent vertical keels, and the other end is connected to another vertical keel.

10. A glass curtain wall, characterized in that, Includes multiple curtain wall drainage systems as described in claim 9 and building walls; Multiple curtain wall drainage systems are arranged sequentially along the horizontal direction of the building wall; The two adjacent curtain wall drainage systems are respectively installed on both sides of the same vertical keel and share the same vertical keel.

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