Closed cavity beam structure with torsional resistance

Abstract

The utility model provides a closed chamber crossbeam structure with torsional rigidity relates to building curtain wall technical field, including aluminium alloy stand, the outer wall of aluminium alloy stand is connected with aluminium alloy pressing plate slidingly, the inner wall of aluminium alloy pressing plate is connected with thread nail threadedly, the outer wall fixed mounting of thread nail has aluminium alloy crossbeam. The utility model discloses, through setting up alloy crossbeam adopts closed chamber structure, compared with open chamber crossbeam stress performance is more excellent, internal hard plastic heat insulation strip is in enhancing structural strength while giving consideration to heat insulation function. The connecting node of aluminium alloy stand and crossbeam is strengthened through multiple ways: at the same time, the aluminium alloy connecting block is strengthened and fixed, and the combination mode of " one pin cavity fixation + two screw stand front mouth fixation " is combined, and the aluminium alloy insert piece is inserted into the slot and is reinforced, avoids loose deformation, improves the stability, the carrying capacity and the safety factor of overall structure, guarantees long -term use reliability, satisfies higher mechanical property requirement.

Description

Technical Field

[0001] This utility model relates to the field of building curtain wall technology, and in particular to a closed-cavity beam structure with anti-torsional properties. Background Technology

[0002] In building curtain wall and window structures, beams are key load-bearing components. Their torsional resistance, connection stability, sealing and heat insulation effect, and installation efficiency directly affect the safety, durability, and energy efficiency of the overall structure.

[0003] Traditional open-cavity beams have weak load-bearing capacity due to structural limitations and are difficult to withstand complex loads. While conventional closed-cavity beams have some improvements, their connection and fixation rely on multiple pins, which require extremely high drilling accuracy and installation precision. This not only increases the difficulty and cost of construction, but may also lead to loosening of the connection due to installation errors, affecting the structural stability. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0005] This utility model adopts the following technical solution: a closed-cavity crossbeam structure with anti-torsional performance, including an aluminum alloy column, an aluminum alloy pressure plate slidably connected to the outer wall of the aluminum alloy column, a threaded nail threaded to the inner wall of the aluminum alloy pressure plate, an aluminum alloy crossbeam fixedly installed on the outer wall of the threaded nail, and a stainless steel spring pin assembly provided on the inner wall of the aluminum alloy column; the aluminum alloy crossbeam is a closed-cavity structure, which has better stress performance than an open-cavity crossbeam, and has a rigid plastic heat insulation strip inside, and the connection position with the aluminum alloy column is basically sealed with silicone sealant.

[0006] Preferably, an EPDM rubber strip is provided between the aluminum alloy beam and the ultra-clear tempered insulated glass. The ultra-clear tempered insulated glass consists of two 8mm thick panes of glass, with the inner pane being Low-E low-emissivity glass and the outer pane being ultra-clear tempered glass, with a 12mm thick air gap in between. Here, the EPDM rubber strip between the aluminum alloy beam and the ultra-clear tempered insulated glass provides good elasticity and sealing, effectively buffering the force between the glass and the beam, reducing damage from vibration, and further improving the sealing performance between the two to prevent rainwater leakage. The ultra-clear tempered insulated glass consists of two 8mm thick panes of glass; the inner Low-E low-emissivity glass effectively reflects infrared rays, reducing indoor heat loss, while the outer ultra-clear tempered glass has high light transmittance and strength.

[0007] Preferably, the stainless steel spring pin assembly has a pin rod diameter of 8 mm and includes a spring, mounting base plate, fixing pins, and other complete accessories. Its automatic reset function enables rapid locking of the aluminum alloy column and aluminum alloy beam. Here, the stainless steel spring pin assembly has an 8 mm diameter pin rod and is equipped with complete accessories. Its automatic reset function enables rapid locking of the aluminum alloy column and aluminum alloy beam, simplifying the installation process and improving assembly efficiency.

[0008] Preferably, the outer side of the aluminum alloy crossbeam is provided with a transverse aluminum alloy decorative cover plate. The decorative cover plate is fixed to the crossbeam with self-drilling self-tapping screws. The self-drilling self-tapping screws are ST4.8×40 in size, and the installation spacing is 300 mm between the centers of adjacent screws. Here, the transverse aluminum alloy decorative cover plate is fixed to the outer side of the aluminum alloy crossbeam with self-drilling self-tapping screws. The ST4.8×40 screw size and the 300 mm installation spacing ensure the firmness of the connection between the decorative cover plate and the crossbeam, making it less likely to fall off.

[0009] Preferably, neoprene rubber pads are provided at the contact points between the ultra-clear tempered insulating glass and the aluminum alloy crossbeam. The pads are 10 mm thick, with two pads per glass pane, placed at a distance of 1 / 4L from the edge of the glass's long side. Here, the 10 mm thick neoprene rubber pads at the contact points between the ultra-clear tempered insulating glass and the aluminum alloy crossbeam, with two pads per glass pane and placed at a distance of 1 / 4L from the edge of the glass's long side, effectively disperse the pressure of the glass on the crossbeam.

[0010] Preferably, the bottom of the aluminum alloy beam is provided with a drainage hole, the drainage hole having a diameter of 40 mm, and the installation spacing being 350 mm between the centers of adjacent drainage holes. Here, the 40 mm diameter drainage hole at the bottom of the aluminum alloy beam and the 350 mm installation spacing can promptly drain rainwater accumulated inside the beam, preventing rainwater from accumulating inside the beam.

[0011] Preferably, the inner edge of the drain hole maintains a 5-10 mm gap from the sealing area of ​​the silicone weather-resistant sealant, which is used to seal the joint between the aluminum alloy beam and the outdoor exposed surface. Here, maintaining a 5-10 mm gap between the inner edge of the drain hole and the sealing area of ​​the silicone weather-resistant sealant ensures that the drainage function of the drain hole is not affected by the sealant, while also effectively sealing the joint between the aluminum alloy beam and the outdoor exposed surface using the silicone weather-resistant sealant.

[0012] Preferably, at the connection node between the aluminum alloy column and the aluminum alloy beam, in addition to the stainless steel spring pin assembly, M5×12 threaded screws are used for auxiliary fixing. The screws have a nominal diameter of 5 mm and a thread length of 12 mm, and are evenly distributed along the node to enhance torsional stability. Here, the use of M5×12 threaded screws for auxiliary fixing at the connection node between the aluminum alloy column and the aluminum alloy beam, in addition to the stainless steel spring pin assembly, and their even distribution along the node, increases the strength and torsional stability of the connection, making the connection between the two more reliable.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the alloy crossbeam adopts a closed-cavity structure, which provides superior stress performance compared to an open-cavity crossbeam. The internal rigid plastic heat insulation strip enhances structural strength while also providing heat insulation. The connection between the aluminum alloy column and the crossbeam is reinforced in multiple ways: simultaneously, the aluminum alloy connecting block strengthens the fixation, combined with a combination of "one pin fixed inside the cavity + two screws fixed at the front of the column," and aluminum alloy plug-in parts inserted into the slot for auxiliary reinforcement, preventing loosening and deformation, improving the overall structural stability, load-bearing capacity, and safety factor, ensuring long-term reliability, and meeting higher mechanical performance requirements.

[0014] 2. In this utility model, the connection between the aluminum alloy beam and the column is sealed with silicone sealant, and a 40 mm diameter drainage hole is provided at the bottom. The inner side of the drainage hole maintains a 5-10 mm gap from the silicone weather-resistant sealant sealing area. This ensures smooth drainage while preventing rainwater leakage through a double seal, avoiding water accumulation and corrosion of the beam, and extending its service life. Compared to the conventional closed-cavity beam fixed with three pins, this design uses one internal pin, two front screws, and an aluminum alloy connector, reducing reliance on precision. The automatic reset function of the stainless steel spring pin assembly and the horizontal decorative cover plate fixed with ST4.8×40 screws improve assembly efficiency, facilitate later disassembly and maintenance, save costs, and enhance practicality and economy. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a closed-cavity beam structure with anti-torsional properties is provided for this utility model. Figure 2 A schematic diagram of an aluminum alloy column structure with a closed-cavity beam structure that has anti-torsion properties is proposed for this utility model. Figure 3 A schematic diagram of a threaded nail structure with a closed-cavity beam structure that has anti-torsion properties is provided for this utility model. Figure 4 A schematic diagram of a stainless steel spring pin assembly with a closed-cavity beam structure that has anti-torsion properties is provided for this utility model. Figure 5A schematic diagram of a rigid plastic heat insulation strip with a closed-cavity beam structure and anti-torsion properties is provided for this utility model. Figure 6 This utility model presents a schematic diagram of a closed-cavity transverse aluminum alloy decorative cover plate with anti-torsional properties.

[0016] Legend: 1. Aluminum alloy column; 2. Drain hole; 3. Threaded nail; 4. Aluminum alloy crossbeam; 5. Stainless steel spring pin assembly; 6. Self-drilling self-tapping screw; 7. Silicone sealant; 8. Silicone weather-resistant sealant; 9. Aluminum alloy pressure plate; 10. EPDM rubber strip; 11. Ultra-clear tempered insulated glass; 12. Rigid plastic thermal insulation strip; 13. Horizontal aluminum alloy decorative cover plate; 14. Neoprene rubber pad. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0019] Example 1 Please see Figures 1-6 This utility model provides a technical solution: a closed-cavity crossbeam structure with anti-torsion performance, including an aluminum alloy column 1, an aluminum alloy pressure plate 9 slidably connected to the outer wall of the aluminum alloy column 1, a threaded nail 3 threadedly connected to the inner wall of the aluminum alloy pressure plate 9, an aluminum alloy crossbeam 4 fixedly installed on the outer wall of the threaded nail 3, and a stainless steel spring pin assembly 5 provided on the inner wall of the aluminum alloy column 1; the aluminum alloy crossbeam 4 is a closed-cavity structure, which has better stress performance than an open-cavity crossbeam, and has a rigid plastic heat insulation strip 12 inside, and the connection position with the aluminum alloy column 1 is basically sealed by silicone sealant 7.

[0020] A EPDM rubber strip 10 is installed between the aluminum alloy beam 4 and the ultra-clear tempered insulated glass 11. The ultra-clear tempered insulated glass 11 consists of two 8mm thick panes of glass, with the inner pane being Low-E low-emissivity glass and the outer pane being ultra-clear tempered glass, with a 12mm thick air gap in between. Here, the EPDM rubber strip 10 between the aluminum alloy beam 4 and the ultra-clear tempered insulated glass 11 provides excellent elasticity and sealing, effectively buffering the force between the glass and the beam, reducing damage from vibration, and further enhancing the sealing performance between the two panes to prevent rainwater leakage. The ultra-clear tempered insulated glass 11 consists of two 8mm thick panes of glass. The inner Low-E low-emissivity glass effectively reflects infrared rays, reducing indoor heat loss, while the outer ultra-clear tempered glass has high light transmittance and strength. The 12mm thick air gap further enhances the thermal insulation and sound insulation effects, making the overall structure superior in terms of energy saving and living comfort.

[0021] The stainless steel spring pin assembly 5, consisting of an 8mm diameter pin and including a spring, mounting base, and fixing pins, achieves rapid locking of the aluminum alloy column 1 and aluminum alloy beam 4 through an automatic reset function. Here, the 8mm diameter pin of the stainless steel spring pin assembly 5, equipped with complete accessories, and its automatic reset function, enables rapid locking of the aluminum alloy column 1 and aluminum alloy beam 4. This not only simplifies the installation process and improves assembly efficiency but also ensures the reliability of the connection during use, preventing loosening and enhancing the overall stability and safety of the structure. It also facilitates later maintenance and disassembly.

[0022] A transverse aluminum alloy decorative cover plate 13 is provided on the outer side of the aluminum alloy beam 4. The decorative cover plate is fixed to the beam by self-drilling self-tapping screws 6. The self-drilling self-tapping screws 6 are ST4.8×40, and the installation spacing is 300 mm between the centers of adjacent screws. Here, the transverse aluminum alloy decorative cover plate 13 is fixed to the outer side of the aluminum alloy beam 4 by self-drilling self-tapping screws 6. The ST4.8×40 screws and the 300 mm installation spacing ensure the firmness of the connection between the decorative cover plate and the beam, making it less likely to fall off. The decorative cover plate not only beautifies the appearance of the beam and enhances the aesthetics of the overall structure, but also provides a certain degree of protection for the beam, reducing direct corrosion from the external environment and extending the service life of the beam.

[0023] Neoprene rubber pads 14, each 10 mm thick, are installed at the contact point between the ultra-clear tempered insulating glass 11 and the aluminum alloy crossbeam 4. Two pads are provided for each pane of glass, positioned 1 / 4L from the edge of the long side of the glass. These neoprene rubber pads 14 effectively distribute the pressure of the glass on the crossbeam, preventing damage due to excessive localized stress. They also act as a buffer and shock absorber, reducing the risk of breakage due to vibration during use and ensuring safe operation.

[0024] The bottom of the aluminum alloy beam 4 is equipped with drainage holes 2, each with a diameter of 40 mm. The installation spacing of adjacent drainage holes 2 is 350 mm. These 40 mm diameter drainage holes 2 at the bottom of the aluminum alloy beam 4, along with the 350 mm installation spacing, effectively drain rainwater accumulated inside the beam, preventing water buildup and avoiding problems such as corrosion and structural damage caused by water accumulation. This ensures the beam remains dry and maintains the stability and durability of the structure.

[0025] The inner edge of the drainage hole 2 maintains a 5-10 mm gap from the sealing area of ​​the silicone weather-resistant sealant 8. The silicone weather-resistant sealant 8 is used to seal the joint between the aluminum alloy beam 4 and the outdoor exposed surface. Here, maintaining a 5-10 mm gap between the inner edge of the drainage hole 2 and the sealing area of ​​the silicone weather-resistant sealant 8 ensures that the drainage function of the drainage hole 2 is not affected by the sealant, while also effectively sealing the joint between the aluminum alloy beam 4 and the outdoor exposed surface through the silicone weather-resistant sealant 8. This further enhances the waterproof performance of the structure, prevents rainwater from seeping in from the joint, and improves the overall sealing and impermeability of the structure.

[0026] At the connection node between the aluminum alloy column 1 and the aluminum alloy beam 4, in addition to the stainless steel spring pin assembly 5, M5×12 threaded nails 3 are used for auxiliary fixation. The nominal diameter of the screws is 5 mm and the length of the screw is 12 mm. They are evenly distributed along the node to enhance torsional stability. Here, at the connection node between the aluminum alloy column 1 and the aluminum alloy beam 4, in addition to the stainless steel spring pin assembly 5, M5×12 threaded nails 3 are used for auxiliary fixation and are evenly distributed along the node. This increases the firmness and torsional stability of the node connection, making the connection more reliable and better able to resist external forces such as torque. It avoids problems such as loosening and deformation at the node, further improving the overall strength and safety of the entire closed-cavity beam structure.

[0027] Working principle: First, the aluminum alloy pressure plate 9 is slidably connected to the outer wall of the aluminum alloy column 1. M5×12 threaded nails 3, connected by internal threads, assist in fixing the connection node between the aluminum alloy beam 4 and the aluminum alloy column 1. The threaded nails 3 are evenly distributed along the node to enhance torsional stability. Simultaneously, the automatic reset function of the stainless steel spring pin assembly 5 (pin rod diameter 8 mm, including spring, mounting base plate, fixing nails, and other complete accessories) is used to quickly lock the aluminum alloy column 1 and aluminum alloy beam 4, completing the connection and fixation. Next, silicone sealant 7 is used for basic sealing at the connection point between the aluminum alloy beam 4 (closed cavity structure with a rigid plastic heat insulation strip 12 inside) and the aluminum alloy column 1. A 40 mm diameter drainage hole 2 is opened at the bottom of the aluminum alloy beam 4, with an installation spacing of 350 mm between the centers of adjacent drainage holes 2. The inner edge of the drainage hole 2 maintains a 5-10 mm gap from the sealing area of ​​the silicone weather-resistant sealant 8 used for sealing the joint between the aluminum alloy beam 4 and the outdoor exposed surface. Next, an EPDM rubber strip 10 is installed between the aluminum alloy beam 4 and the ultra-clear tempered insulating glass 11. Two 10mm thick neoprene rubber pads 14 are placed at the contact points between the ultra-clear tempered insulating glass 11 and the aluminum alloy beam 4, positioned along the long side of the glass at a distance of 1 / 4L from the edge. Finally, a horizontal aluminum alloy decorative cover plate 13 is installed on the outside of the aluminum alloy beam 4 and secured with ST4.8×40 self-drilling self-tapping screws 6, with a spacing of 300mm between the centers of adjacent screws, completing the installation of the entire structure.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A closed-cavity beam structure with torsional resistance, comprising an aluminum alloy column (1), characterized in that: The outer wall of the aluminum alloy column (1) is slidably connected to an aluminum alloy pressure plate (9), and the inner wall of the aluminum alloy pressure plate (9) is threadedly connected to a threaded nail (3). An aluminum alloy crossbeam (4) is fixedly installed on the outer wall of the threaded nail (3). The inner wall of the aluminum alloy column (1) is provided with a stainless steel spring pin assembly (5). The aluminum alloy crossbeam (4) is a closed cavity structure, which has better stress performance than an open cavity crossbeam. It is provided with a hard plastic heat insulation strip (12) inside, and the connection position with the aluminum alloy column (1) is basically sealed by silicone sealant (7).

2. The closed-cavity beam structure with torsional resistance according to claim 1, characterized in that: An EPDM rubber strip (10) is provided between the aluminum alloy beam (4) and the ultra-clear tempered insulated glass (11). The ultra-clear tempered insulated glass (11) is composed of two 8 mm thick glass pieces, with the inner side being Low-E low-emissivity glass and the outer side being ultra-clear tempered glass, and the thickness of the air layer in the middle being 12 mm.

3. The closed-cavity beam structure with torsional resistance according to claim 1, characterized in that: The stainless steel spring pin assembly (5) consists of a pin rod with a diameter of 8 mm and includes a spring, a mounting base plate, and a fixing pin.

4. A closed-cavity beam structure with torsional resistance according to claim 1, characterized in that: The aluminum alloy beam (4) is provided with a horizontal aluminum alloy decorative cover plate (13) on the outside. The decorative cover plate is fixed to the beam by self-drilling self-tapping screws (6). The self-drilling self-tapping screws (6) are ST4.8×40 and the installation spacing is 300 mm between the centers of adjacent screws.

5. A closed-cavity beam structure with torsional resistance according to claim 2, characterized in that: The ultra-white tempered insulating glass (11) is provided with neoprene rubber pads (14) at the contact position with the aluminum alloy beam (4). The pads are 10 mm thick, and two pads are provided for each piece of glass. They are placed along the long side of the glass at a distance of 1 / 4L from the edge.

6. A closed-cavity beam structure with torsional resistance according to claim 4, characterized in that: The bottom of the aluminum alloy beam (4) is provided with a drain hole (2), the drain hole (2) is 40 mm in diameter, and the installation spacing is 350 mm between the centers of adjacent drain holes (2).

7. A closed-cavity beam structure with torsional resistance according to claim 6, characterized in that: The inner edge of the drain hole (2) is kept 5-10 mm away from the sealing area of ​​the silicone weather-resistant sealant (8), which is used to seal the joint between the aluminum alloy beam (4) and the outdoor exposed surface.

8. A closed-cavity beam structure with torsional resistance according to claim 6, characterized in that: At the connection node between the aluminum alloy column (1) and the aluminum alloy beam (4), in addition to the stainless steel spring pin assembly (5), it is also fixed by M5×12 threaded nails (3). The screws (6) have a nominal diameter of 5 mm and a length of 12 mm, and are evenly distributed along the node to enhance torsional stability.

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