Connecting structure of curtain wall composite profile and steel frame
By using bolted connection components and sealing design, the problems of laborious and unstable traditional connection methods are solved, achieving efficient and reliable connection and good sealing between the curtain wall composite profile and the steel frame, ensuring the safety and stability of the curtain wall structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING HUAXIA DOOR & WINDOW LLC
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional methods of connecting composite curtain wall profiles to steel frames are laborious, inefficient, and difficult to guarantee connection quality, posing safety hazards.
The composite profile is securely connected to the steel frame by bolts, including semi-circular head square neck bolts, cylindrical nuts, guide components, pressure plates, and fastening bolts. Sealing strips and decorative covers are installed at the joints to improve sealing performance.
It improves installation efficiency, ensures the firmness and sealing of connections, prevents wind and rain intrusion, and ensures the safety and stability of the curtain wall structure.
Smart Images

Figure CN224259673U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building curtain wall connection structures, and particularly to a connection structure between a curtain wall composite profile and a steel frame. Background Art
[0002] In the technical field of building curtain walls, curtain wall glass panels are installed on steel frames through composite profiles. The connection between the composite profiles and the steel frames is a key link to ensure the structural stability and safety of the curtain walls. Traditional connection methods often use on-site self-tapping and self-drilling screws. This method is not only laborious and inefficient, but also the connection quality is difficult to guarantee, and there may be potential safety hazards. Content of the Utility Model
[0003] The utility model aims to provide a connection structure between a curtain wall composite profile and a steel frame to solve the problems of the traditional connection method using on-site self-tapping and self-drilling screws, which is laborious, inefficient, difficult to guarantee the connection quality, and may have potential safety hazards.
[0004] To achieve the above object, the basic scheme of the utility model is as follows: A connection structure between a curtain wall composite profile and a steel frame. The steel frame includes square pipe columns and square pipe crossbeams, and includes column connection components and crossbeam connection components. The column connection components include semi-circular head square neck bolts, cylindrical nuts, guides, pressing plates and fastening bolts. There are calabash holes on the square pipe columns. One end of the semi-circular head square neck bolt is inserted from the large end of the calabash hole and slides to the small end of the calabash hole to be stuck. The cylindrical nut is threadedly connected to the semi-circular head square neck bolt. The guide is fixed in the middle of the composite profile. The composite profile is sleeved on the cylindrical nut through the guide. One glass panel is installed in each of the glass slot openings on both sides of the composite profile. The pressing plate covers and presses on the two glass panels. The fastening bolt is located outside the pressing plate and is threadedly connected to the cylindrical nut to press and hold the pressing plate.
[0005] The crossbeam connection components include "U" - shaped connecting pieces, short cylindrical nuts, pressing plates and fastening bolts. The "U" - shaped connecting pieces are welded on the square pipe crossbeams. The composite profile is sleeved on the "U" - shaped connecting pieces. The short cylindrical nuts are fixed at the ends of the "U" - shaped connecting pieces. One glass panel is installed in each of the glass slot openings on both sides of the composite profile. The pressing plate covers and presses on the two glass panels. The fastening bolt is located outside the pressing plate and is threadedly connected to the short cylindrical nut to press and hold the pressing plate.
[0006] Further, the column connection components and the crossbeam connection components further include decorative cover plates, and the decorative cover plates are installed outside the pressing plates.
[0007] Further, glass gaskets are provided in the glass slot openings on both sides of the composite profile, and sealing rubber strips are provided between the glass panels and the composite profile and the pressing plates.
[0008] Furthermore, sealant is applied to the contact surface between the decorative cover and the glass panel.
[0009] Furthermore, the column connection assembly also includes a locking washer, which is installed between the square tube column and the composite profile.
[0010] Furthermore, an isolation gasket is provided between the composite profile and the pressure plate.
[0011] The beneficial effects of this solution are: (1) This solution uses bolt connection, which avoids the use of self-tapping and self-drilling screws as structural connection on site, greatly improves installation efficiency, and ensures installation quality.
[0012] (2) Through specific connection structure design, it can ensure a firm and reliable connection between the curtain wall composite profile and the steel frame, effectively transferring the wind load, seismic load, self-weight load, etc. borne by the curtain wall glass panel.
[0013] (3) A sealing strip is used to effectively isolate the glass panel from the composite profile. After tightening, a decorative cover plate is installed and sealant is applied to ensure the sealing performance of the curtain wall and prevent wind and rain from entering. Attached Figure Description
[0014] Figure 1 This is a schematic diagram showing the connection between the column connection component and the square tube column, composite profile, and glass panel in an embodiment of this utility model.
[0015] Figure 2 This is a schematic diagram showing the connection between the beam connecting assembly and the square tube beam, composite profile, and glass panel in an embodiment of this utility model. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] The reference numerals in the accompanying drawings include: 1. Square tube column; 2. Square tube beam; 3. Composite profile; 4. Glass panel; 5. Semi-circular head square neck bolt; 6. Locking washer; 7. Guide component; 8. Glass gasket; 9. Cylindrical nut; 10. Fastening bolt; 11. Isolation gasket; 12. Sealing strip; 13. Pressure plate; 14. Decorative cover plate; 15. Sealant; 16. "U"-shaped connector; 17. Short cylindrical nut; 18. Gourd hole.
[0018] Example
[0019] The basics are as follows: Figure 1As shown: A connection structure between a curtain wall composite profile and a steel frame. The steel frame includes a square tube column 1 and a square tube cross beam 2, and includes a column connection component and a cross beam connection component. The column connection component includes a semi-circular head square neck bolt 5, a lock washer 6, a cylindrical nut 9, a guide 7, a pressing plate 13, and a fastening bolt 10. There is a gourd hole 18 on the square tube column 1. One end of the semi-circular head square neck bolt 5 is inserted from the large end of the gourd hole 18 and slides to the small end of the gourd hole 18 to be stuck. Manually tighten the lock washer 6. The cylindrical nut 9 is threadedly connected to the semi-circular head square neck bolt 5 and abuts against the lock washer 6. The guide 7 is fixed in the middle of the composite profile 3. The composite profile 3 is sleeved on the cylindrical nut 9 through the guide 7. The lock washer 6 is installed between the square tube column 1 and the composite profile 3. A glass panel 4 is installed in each of the glass grooves on both sides of the composite profile 3. The pressing plate 13 covers and presses on the two glass panels 4. There is also a spacer 11 between the composite profile 3 and the pressing plate 13. The fastening bolt 10 is located outside the pressing plate 13 and is threadedly connected to the cylindrical nut 9 to press and hold the pressing plate 13 tightly.
[0020] Combined Figure 2 As shown, the cross beam connection component includes a "channel" - shaped connecting piece, a short cylindrical nut 17, a pressing plate 13, and a fastening bolt 10. The "channel" - shaped connecting piece is welded to the square tube cross beam 2. The composite profile 3 is sleeved on the "channel" - shaped connecting piece. The short cylindrical nut 17 is fixed at the end of the "channel" - shaped connecting piece. A glass panel 4 is installed in each of the glass grooves on both sides of the composite profile 3. The pressing plate 13 covers and presses on the two glass panels 4. The fastening bolt 10 is located outside the pressing plate 13 and is threadedly connected to the short cylindrical nut 17 to press and hold the pressing plate 13 tightly.
[0021] The column connection component and the cross beam connection component also include a decorative cover plate 14, and the decorative cover plate 14 is installed outside the pressing plate 13.
[0022] There are glass gaskets 8 in the glass grooves on both sides of the composite profile 3. There is a sealing strip 12 between the glass panel 4, the composite profile 3, and the pressing plate 13. Sealant 15 is injected on the contact surface between the decorative cover plate 14 and the glass panel 4.
[0023] The beneficial effect of this embodiment: This embodiment uses bolt connection, avoiding the use of on - site self - tapping and self - drilling screws as structural connections, greatly improving the installation efficiency and ensuring the installation quality at the same time.
[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0025] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A connection structure between a curtain wall composite profile and a steel frame, the steel frame comprising square tube columns and square tube beams, characterized in that: It includes a column connection component and a crossbeam connection component. The column connection component includes a round head square neck bolt, a cylindrical nut, a guide, a pressing plate and a fastening bolt. There is a gourd hole on the square tube column. One end of the round head square neck bolt is inserted from the large end of the gourd hole and slides to the small end of the gourd hole to be stuck. The cylindrical nut is threadedly connected to the round head square neck bolt. The guide is fixed in the middle of the composite profile. The composite profile is sleeved on the cylindrical nut through the guide. A glass panel is respectively installed in the glass grooves on both sides of the composite profile. The pressing plate covers and presses on the two glass panels. The fastening bolt is located outside the pressing plate and is threadedly connected to the cylindrical nut to press and fasten the pressing plate; The crossbeam connection component includes a "J" - shaped connecting piece, a short cylindrical nut, a pressing plate and a fastening bolt. The "J" - shaped connecting piece is welded on the square tube crossbeam. The composite profile is sleeved on the "J" - shaped connecting piece. The short cylindrical nut is fixed at the end of the "J" - shaped connecting piece. A glass panel is respectively installed in the glass grooves on both sides of the composite profile. The pressing plate covers and presses on the two glass panels. The fastening bolt is located outside the pressing plate and is threadedly connected to the short cylindrical nut to press and fasten the pressing plate.
2. The connection structure between the curtain wall composite profile and the steel frame according to claim 1, characterized in that: The column connection component and the crossbeam connection component further include a decorative cover plate, and the decorative cover plate is installed outside the pressing plate.
3. The connection structure between the curtain wall composite profile and the steel frame according to claim 2, characterized in that: Glass gaskets are provided in the glass grooves on both sides of the composite profile, and sealing rubber strips are provided between the glass panel, the composite profile and the pressing plate.
4. The connection structure between the curtain wall composite profile and the steel frame according to claim 3, characterized in that: Sealing glue is injected on the contact surface between the decorative cover plate and the glass panel.
5. The connection structure between the curtain wall composite profile and the steel frame according to claim 1, characterized in that: The column connection component further includes a locking gasket, and the locking gasket is installed between the square tube column and the composite profile.
6. The connection structure between the curtain wall composite profile and the steel frame according to claim 5, characterized in that: An isolation gasket is further provided between the composite profile and the pressing plate.