A node structure of an adjustable gradual change fold line hidden frame glass curtain wall
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DECORATION CO LTD OF CHINA CONSTR 3RD ENG BUREAU
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional glass curtain walls suffer from limited angle adjustment in their gradient zigzag irregular shapes, high profile molding costs, low construction efficiency, and insufficient positioning accuracy, which affect the overall facade effect and structural stability, and pose safety hazards.
The adjustable gradient zigzag frameless glass curtain wall adopts a node structure. Through the rotational connection and screw fixing of the mother sub-frame and the child sub-frame, the angle of the glass panel can be flexibly adjusted. Combined with sealant and connecting plate, the stress of the node is optimized, the construction process is simplified and the overall structure is enhanced.
It enables stepless adjustment of the glass panel angle, eliminates installation errors, reduces costs, increases design freedom and structural stability, and enhances safety and durability.
Smart Images

Figure CN224379197U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of curtain wall technology, and in particular to a node structure for an adjustable gradient zigzag hidden frame glass curtain wall. Background Technology
[0002] Due to the diversification of building curtain wall designs, projects using irregularly shaped glass curtain walls with folded lines are gradually increasing. Traditional curtain wall glass subframes have limitations in angle adjustment, making it difficult to adapt to the design requirements of gradually changing irregularly shaped curtain walls. The large amount of profile molding leads to high costs and low construction efficiency. Installation generates cumulative errors and other defects, thus affecting the overall facade effect of the curtain wall. Insufficient positioning accuracy between the glass and the subframe, and large deviations in angle control, affect structural stability and cause stress concentration at joints, posing safety hazards. Utility Model Content
[0003] The purpose of this utility model is to provide a node structure for an adjustable gradient zigzag hidden frame glass curtain wall, which solves the technical problems of limited adjustment of the sub-frame angle, high cost of mold opening for multi-specification profiles, poor overall facade effect of the curtain wall, and stress concentration at the nodes, which poses safety hazards.
[0004] To achieve the above objectives, the present invention adopts the following technical solution.
[0005] A node structure for an adjustable gradient zigzag frameless glass curtain wall includes glass panels and curtain wall vertical studs; the glass panels are of two pieces, arranged in a zigzag pattern; the curtain wall vertical studs are located on the inner side of the two glass panels, corresponding to the joint positions; it also includes a mother sub-frame and a daughter sub-frame; there are two mother sub-frames, respectively located on both sides of the joint; each mother sub-frame is strip-shaped and connected to the outer side of the curtain wall vertical stud; the two mother sub-frames are symmetrically arranged about the vertical axis of the outer side of the curtain wall vertical stud; each mother sub-frame includes a base plate and a slot; the base plate is strip-shaped, and the base plates of the two mother sub-frames and the curtain wall vertical studs together form a vertical strip-shaped groove; the strip... The opening of the groove faces outward; the slot is strip-shaped and located inside the strip-shaped groove, near the opening; the horizontal cross-section of the slot is arc-shaped, and the opening of the slot faces the joint side; the slot is connected to the base plate via a connecting strip; there are two sub-frames, each corresponding to one of the two main sub-frames, and each sub-frame is strip-shaped; each sub-frame includes a rotating plate; the outer part of the rotating plate is connected to the glass panel on the joint side; a rotating shaft is connected to the inner side of the rotating plate; the rotating shaft is vertically inserted into the slot and rotatably connected to the slot; a sealing rod and sealant are sequentially arranged from the inside to the outside in the joint of the two glass panels.
[0006] Preferably, the main subframe is connected to the curtain wall vertical keel by a pressure block and a first screw; a gap is left between the two main subframes; there is a set of pressure blocks, which are vertically spaced at the gap between the two main subframes, and the two vertical sides of each pressure block are respectively pressed onto the base plate of the two main subframes; the first screw is set on the pressure block at the gap between the two main subframes, and the first screw connects the pressure block to the curtain wall vertical keel.
[0007] Preferably, the horizontal cross-section of the base plate is L-shaped, and the horizontal edge of the base plate is connected to the vertical keel of the curtain wall; the base plates of the two subframes and the vertical keel of the curtain wall together form a strip groove with a horizontal cross-section of U-shape; the slot is set in the strip groove, near the outer end of the longitudinal edge of the base plate; there are at least two connecting strips, which are connected between the slot and the corresponding base plate at intervals.
[0008] Preferably, the horizontal cross-section of the rotating plate is L-shaped, and a curtain wall connecting plate is provided on the side of the rotating plate near the glass panel; the curtain wall connecting plate is arranged parallel to and spaced apart from the glass panel; and an adhesive strip is provided between the curtain wall connecting plate and the glass panel.
[0009] Preferably, a hole is provided on the slot near the bottom; a through hole is provided on the rotating shaft at the position corresponding to the hole; the slot and the rotating shaft are fixed together by a second screw passing through the hole and the through hole.
[0010] Compared with the prior art, the present invention has the following features and beneficial effects.
[0011] 1. The node structure of this utility model features flexible and adjustable angles. Through the rotatable connection between the sub-frame pivot and the mother sub-frame slot, the angle between adjacent glass panels can be infinitely adjusted, adapting to the requirements of gradient folded line shapes and enhancing design freedom. Furthermore, the mother sub-frame of this utility model is connected to the curtain wall vertical keel via a combination of pressure blocks and screws. This fixing method allows for on-site fine-tuning, effectively eliminating accumulated installation errors and ensuring precise alignment of the curtain wall facade. The standardized connection between the mother sub-frame and the vertical keel, along with the independent assembly of the sub-frames, simplifies the construction process and facilitates later maintenance and partial replacement.
[0012] 2. The universal design of the mother and daughter sub-frames in this utility model reduces the types of profiles used, avoids frequent mold opening, and significantly saves costs. Simultaneously, the cooperative design of the pivot and slot, combined with the second screw for locking, enables precise control of the glass panel angle, enhancing structural integrity and resistance to deformation.
[0013] 3. This utility model adopts a curtain wall connection plate with a connection design of adhesive strip and sealant to optimize the stress distribution at the node, avoid stress concentration, and improve the durability and safety of the curtain wall. Attached Figure Description
[0014] The present invention will now be described in further detail with reference to the accompanying drawings.
[0015] Figure 1 This is a schematic diagram of the horizontal cross-section structure of the concave corner node of the zigzag-line concealed frame glass curtain wall of this utility model.
[0016] Figure 2 This is a schematic diagram of the horizontal cross-section structure of the external corner node of the zigzag hidden frame glass curtain wall of this utility model.
[0017] Figure 3 This is a three-dimensional structural diagram of the outer side of the concave corner node of the folded-line concealed frame glass curtain wall of this utility model.
[0018] Figure 4 This is a three-dimensional structural diagram of the inner side of the concave corner node of the folded-line concealed frame glass curtain wall of this utility model.
[0019] Figure 5 This is a three-dimensional structural diagram of the outer side of the corner node of the folded-line concealed frame glass curtain wall of this utility model.
[0020] Figure 6 This is a schematic diagram of the connection structure between the glass panel and the vertical keel of the curtain wall in this utility model.
[0021] Figure 7 This is a schematic diagram of the structure of the mother subframe in this utility model.
[0022] Figure 8 This is a schematic diagram of the structure of the neutron subframe of this utility model.
[0023] Attached reference numerals: 1 - vertical keel of curtain wall, 2 - female subframe, 2.1 - base plate, 2.2 - slot, 3 - subframe, 3.1 - rotating plate, 3.2 - rotating shaft, 3.3 - curtain wall connecting plate, 4 - strip groove, 5 - adhesive strip, 6 - first screw, 7 - second screw, 8 - glass panel, 9 - sealing rod, 10 - sealant, 11 - pressure block, 12 - connecting strip plate, 13 - horizontal keel of curtain wall. Detailed Implementation
[0024] like Figure 1-8As shown, the node structure of this adjustable gradient zigzag frameless glass curtain wall includes glass panels 8 and curtain wall vertical keel 1; there are two glass panels 8 arranged in a zigzag pattern; the curtain wall vertical keel 1 is located on the inner side of the two glass panels 8, at the corresponding joint position; it also includes a mother sub-frame 2 and a daughter sub-frame 3; both the mother sub-frame 2 and the daughter sub-frame 3 are made of aluminum alloy, there are two mother sub-frames 2, respectively located on both sides of the joint; each mother sub-frame 2 is strip-shaped and connected to the outer side of the curtain wall vertical keel 1; the two mother sub-frames 2 are symmetrically arranged about the vertical axis of the outer side of the curtain wall vertical keel 1; the mother sub-frame 2 includes a base plate 2.1 and a slot 2.2; the base plate 2.1 is strip-shaped, and the base plates 2.1 of the two mother sub-frames 2 and the curtain wall vertical keel 1 together form a vertical strip groove 4; the... The opening of the strip groove 4 faces outward; the slot 2.2 is strip-shaped and located inside the strip groove 4, near the opening; the horizontal cross-section of the slot 2.2 is arc-shaped, and the opening of the slot 2.2 faces the joint side; the slot 2.2 is connected to the base plate 2.1 through the connecting strip 12; there are two sub-frames 3, which are respectively connected to the two mother sub-frames 2, and each sub-frame 3 is strip-shaped; the sub-frame 3 includes a rotating plate 3.1; the outer part of the rotating plate 3.1 is connected to the glass panel 8 on the joint side; a rotating shaft 3.2 is connected to the inner side of the rotating plate 3.1; the rotating shaft 3.2 is vertically inserted into the slot 2.2 and rotatably connected to the slot 2.2; in the joint of the two glass panels 8, a sealing rod 9 and a sealant 10 are arranged sequentially from the inside to the outside.
[0025] In this embodiment, curtain wall vertical keel 1 is provided on both sides of curtain wall horizontal keel 1; the curtain wall vertical keel 1 and the curtain wall horizontal keel 13 together form the curtain wall keel.
[0026] In this embodiment, the mother subframe 2 is connected to the curtain wall vertical keel 1 by pressure block 11 and first screw 6; there is a gap between the two mother subframes 2; there is a set of pressure blocks 11, which are arranged vertically at intervals in the gap between the two mother subframes 2, and the two vertical sides of each pressure block 11 are respectively pressed onto the base plate 2.1 of the two mother subframes 2; the first screw 6 is arranged on the pressure block 11, corresponding to the gap between the two mother subframes 2, and the first screw 6 connects the pressure block 11 to the curtain wall vertical keel 1.
[0027] In this embodiment, the horizontal cross-section of the base plate 2.1 is L-shaped, including a horizontal side and a vertical side; the horizontal side of the base plate 2.1 is connected to the curtain wall vertical keel 1; the base plates 2.1 of the two mother subframes 2 and the curtain wall vertical keel 1 together form a strip groove 4 with a horizontal cross-section of U-shape; the slot 2.2 is set in the strip groove 4, near the outer end of the vertical side of the base plate 2.1; there are at least two connecting strips 12, which are connected between the slot 2.2 and the corresponding base plate 2.1 at intervals.
[0028] In this embodiment, the horizontal cross-section of the rotating plate 3.1 is L-shaped, and a curtain wall connecting plate 3.3 is provided on the side of the rotating plate 3.1 near the glass panel 8; the curtain wall connecting plate 3.3 is arranged parallel to and spaced apart from the glass panel 8; and an adhesive strip 5 is provided between the curtain wall connecting plate 3.3 and the glass panel 8.
[0029] In this embodiment, a hole is provided on the slot 2.2 near the bottom; a through hole is provided on the rotating shaft 3.2 at the position corresponding to the hole; the slot 2.2 and the rotating shaft 3.2 are fixed together by a second screw 7 passing through the hole and the through hole to prevent the sub-frame and sub-frame from sliding during the installation process.
[0030] In this embodiment, the adhesive strip 5 includes a double-sided adhesive strip and structural adhesive; the structural adhesive is located on the side of the double-sided adhesive strip closest to the seam. The double-sided adhesive strip is used to connect the sub-frame 3 to the glass panel 8; the structural adhesive is a silicone structural adhesive used to connect the sub-frame 3 to the glass panel 8.
[0031] In this embodiment, the female subframe 2 is used to connect the subframe 3 and is fixed to the curtain wall vertical keel 1 by the pressure block 11. The lower opening is used to fix the second screw 7 to prevent the subframe 3 and the female subframe 2 from sliding and displacing during the installation process.
[0032] In this embodiment, the mother subframe 2 and the daughter subframe 3 are respectively located at the external or internal corner of the folded glass curtain wall. This means that the protruding shape at the external corner or the recessed shape at the internal corner is connected to the groove shape of the mother subframe, and they are bonded to the glass panel 8 by double-sided tape and silicone structural adhesive. The opening position of the mother subframe 2 is milled in the processing plant.
[0033] The specific implementation steps for this rotatable aluminum alloy glass subframe technology used in gradient folded frameless glass curtain walls are as follows.
[0034] Step 1: Use a total station to locate the coordinates of the curtain wall keel on site and install the curtain wall keel frame.
[0035] Step 2: Pick up the materials for the mother subframe 2 and the child subframe 3 and transport them to the processing plant. According to the subframe processing drawing, make a hole at the position of the arc groove 2.2 of the mother subframe 2 and mill the position of the pivot 3.2 of the child subframe 3.
[0036] Step 3: After the sub-frame is processed, the glass is assembled at the glass processing plant. Double-sided tape is used to fix the sub-frame 3 for positioning, and silicone structural adhesive is used to bond the sub-frame 3 to the glass panel 8.
[0037] Step 4: Connect the mother subframe 2 and the child subframe 3 to the rotating shaft 3.2 through the slot 2.2 and fix them with the second screw 7 to prevent the child subframe 3 from sliding vertically.
[0038] Step 5: Trial installation of glass panel 8: Hoist glass panel 8 to the corresponding position, adjust the relative relationship between the subframe 2 and the curtain wall vertical keel 1, so that the subframe 2 is placed vertically on the front of the curtain wall vertical keel 1.
[0039] Step 6: Using aluminum alloy clamps, fix the adjusted subframe 2 to the curtain wall vertical keel 1 with the first screw 6.
[0040] Step 7: Install the adjacent glass panels 8 in accordance with Steps 5 and 6.
[0041] Step 8: Fill the gaps between the glass panels 8 with sealing rods 9, and apply silicone weather-resistant sealant from the outside.
[0042] The above embodiments are not exhaustive examples of specific implementation methods, and other embodiments may also exist. The purpose of the above embodiments is to illustrate the present utility model, rather than to limit the protection scope of the present utility model. All applications derived from simple variations of the present utility model fall within the protection scope of the present utility model.
Claims
1. A node structure of an adjustable and gradually changing broken line hidden frame glass curtain wall, comprising glass panels (8) and curtain wall vertical keels (1); the glass panels (8) are two and arranged in a broken line; the curtain wall vertical keels (1) are arranged at the inner sides of the two glass panels (8) and correspond to joint positions; characterized in that: It also includes a mother subframe (2) and a daughter subframe (3); there are two mother subframes (2), which are respectively set on both sides of the joint; each mother subframe (2) is strip-shaped and connected to the outer side of the curtain wall vertical keel (1); the two mother subframes (2) are symmetrically arranged about the vertical axis of the outer side of the curtain wall vertical keel (1); the mother subframe (2) includes a base plate (2.1) and a slot (2.2); the base plate (2.1) is strip-shaped, and the base plates (2.1) of the two mother subframes (2) together with the curtain wall vertical keel (1) form a vertical strip groove (4); the opening of the strip groove (4) is set outward; the slot (2.2) is strip-shaped and located in the strip groove (4) near the opening; the horizontal section of the slot (2.2) is more than 100°. The slot (2.2) is arc-shaped and faces the seam side; the slot (2.2) is connected to the base plate (2.1) through the connecting strip (12); there are two sub-frames (3), which are respectively connected to the two mother sub-frames (2), and each sub-frame (3) is strip-shaped; the sub-frame (3) includes a rotating plate (3.1); the outer part of the rotating plate (3.1) is connected to the glass panel (8) on the seam side; a rotating shaft (3.2) is connected to the inner side of the rotating plate (3.1); the rotating shaft (3.2) is vertically inserted into the slot (2.2) and rotatably connected to the slot (2.2); in the seam of the two glass panels (8), a sealing rod (9) and a sealant (10) are arranged sequentially from the inside to the outside. 2. The node structure of the adjustable progressive fold-line invisible frame glass curtain wall according to claim 1, characterized in that: The mother subframe (2) is connected to the curtain wall vertical keel (1) by pressure block (11) and first screw (6); there is a gap between the two mother subframes (2); there is a set of pressure blocks (11), which are arranged vertically at intervals in the gap between the two mother subframes (2), and the two vertical sides of each pressure block (11) are respectively pressed onto the base plate (2.1) of the two mother subframes (2); the first screw (6) is arranged on the pressure block (11) at the gap between the two mother subframes (2), and the first screw (6) connects the pressure block (11) to the curtain wall vertical keel (1).
3. The node structure of the adjustable progressive fold-line invisible frame glass curtain wall according to claim 1, characterized in that: The horizontal cross-section of the base plate (2.1) is L-shaped, and the horizontal edge of the base plate (2.1) is connected to the curtain wall vertical keel (1); the base plates (2.1) of the two mother subframes (2) and the curtain wall vertical keel (1) together form a strip groove (4) with a horizontal cross-section of U-shape; the slot (2.2) is set in the strip groove (4) near the outer end of the longitudinal edge of the base plate (2.1); there are at least two connecting strips (12), which are connected between the slot (2.2) and the corresponding base plate (2.1) at intervals.
4. The node structure of the adjustable gradient zigzag frameless glass curtain wall according to claim 1, characterized in that: The horizontal cross-section of the rotating plate (3.1) is L-shaped, and a curtain wall connecting plate (3.3) is provided on the side of the rotating plate (3.1) near the glass panel (8); the curtain wall connecting plate (3.3) is arranged parallel to the glass panel (8) at intervals; and a rubber strip (5) is provided between the curtain wall connecting plate (3.3) and the glass panel (8).
5. The node structure of the adjustable gradient zigzag frameless glass curtain wall according to claim 1, characterized in that: A hole is provided on the slot (2.2) near the bottom; a through hole is provided on the shaft (3.2) at the position corresponding to the hole; the slot (2.2) and the shaft (3.2) are fixed together by a second screw (7) passing through the hole and the through hole.