A curtain wall frame structure
By introducing grooved guide rails, scale markings, and the coordination of various components in the curtain wall frame, the problem of complex adjustment of concealed bolts was solved, achieving an efficient and precise installation process and improving construction efficiency and structural stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DEGAO (XIAMEN) CONSTRUCTION GROUP CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-07
AI Technical Summary
During the installation of existing curtain wall frames, the adjustment of concealed bolts is difficult to simplify, the alignment process is complicated, and it affects construction efficiency and accuracy.
The system utilizes a grooved guide rail and graduated markings on the inner side of the main beam, combined with components such as an elastic clamping part, a magnetic ruler, a pre-positioning buckle, a flexible sealing sleeve, a serrated interlocking edge, and a locking mechanism to achieve precise positioning and fixing of concealed bolts, simplifying the installation process.
It improves the installation efficiency and precision of the curtain wall frame, simplifies the alignment process, and enhances the stability and aesthetics of the overall structure.
Smart Images

Figure CN224468624U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of building technology, specifically to a curtain wall frame structure. Background Technology
[0002] Curtain wall frames are typically used for the installation and support of building exterior walls, serving to support glass, metal panels, and other panels while also prioritizing aesthetics and stability. These structures often involve concealed bolts for a cleaner appearance; however, a challenge arises during installation: how to adjust the concealed bolt structure to simplify the alignment process, which can affect construction efficiency and precision. Summary of the Invention
[0003] In view of this, the present disclosure provides a curtain wall frame structure that at least partially solves the problems existing in the prior art.
[0004] A curtain wall frame structure includes a main beam, transverse connectors, concealed bolts, pressure plates, and adjusting nuts. The main beam supports the entire curtain wall frame and transfers the load to the main building structure. The inner side of the main beam has a grooved guide rail for the concealed bolts to move along the rail. The outer surface of the main beam has graduation marks for precisely determining the installation position. An elastic clamping part is provided at the installation end of the main beam to fix the initial position of the concealed bolts and simplify the alignment process. The transverse connectors are connected to the main beam via a plug-in connection to enhance the overall transverse stability of the frame. The concealed bolts are slidably located in the grooved guide rails of the main beam to fix the frame to the main building structure. The pressure plate covers the outside of the grooves on the main beam to lock the position of the concealed bolts and protect them from external interference. The adjusting nut is located at one end of the concealed bolt; rotating the adjusting nut allows for fine-tuning of the concealed bolt's position to achieve final alignment. The main beam is connected to adjacent frame components via the transverse connectors, and the concealed bolts are locked in designated positions on the main beam by the pressure plate.
[0005] Furthermore, the main beam's scale markings use a magnetic ruler, which can be detached and attached to the outer surface of the main beam for further precise positioning of the concealed bolts.
[0006] Furthermore, the elastic clamping part consists of adjustable tension spring clamps to accommodate concealed bolts of different sizes.
[0007] Furthermore, the transverse connectors are equipped with pre-positioning buckles at both ends to pre-fix their position relative to the main beam during installation, facilitating the alignment of concealed bolts.
[0008] Furthermore, the tail end of the concealed bolt is equipped with a flexible sealing sleeve, which can prevent external impurities from entering and hindering sliding, and maintain the precise movement of the concealed bolt.
[0009] Furthermore, one side of the pressure plate is provided with a serrated interlocking edge to ensure sufficient fixing force is applied to the concealed bolts after installation and to facilitate disassembly and maintenance.
[0010] Furthermore, the pressure plate is fixed to the main beam by a locking mechanism, which can be quickly tightened or loosened by manual operation or by rotating with a tool.
[0011] This utility model provides a curtain wall frame structure that can solve the problem of how to adjust the concealed bolt structure to simplify the alignment process during installation, thereby helping to simplify the installation steps and improve installation efficiency. Attached Figure Description
[0012] To more clearly illustrate the technical solutions of the exemplary embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the structure of the present invention (first perspective).
[0014] Figure 2 This is a schematic diagram of the structure of the present invention (second perspective).
[0015] In the diagram: Main beam-1, Grooved guide rail-11, Scale mark-12, Elastic clamping part-13, Pre-positioning buckle-18, Lateral connector-2, Flexible sealing sleeve-21, Serrated fitting edge-22, Locking mechanism-23, Concealed bolt-3, Pressure plate-4, Adjusting nut-5 Detailed Implementation
[0016] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0017] like Figure 1As shown, a curtain wall frame structure according to this application includes a main beam 1, transverse connectors 2, concealed bolts 3, pressure plates 4, and adjusting nuts 5. Through the coordinated work of these components, efficient installation and optimized alignment processes can be achieved.
[0018] The main beam 1, as the core component of the entire curtain wall frame, bears the main load of the frame and transmits the force to the main building structure. Its inner side is designed with a grooved guide rail 11, along which the concealed bolts 3 can move. Furthermore, the outer surface of the main beam 1 is marked with graduations 12 to facilitate accurate measurement and marking of the installation position by construction personnel. An elastic clamping part 13 is also provided at the installation end for initial fixing of the concealed bolts 3. For example, the elastic clamping part 13 can be formed by creating an elastic opening structure or embedding rubber material components in the metal material of the main beam 1 through mold processing.
[0019] The transverse connector 2 is mainly used to improve the overall transverse stability of the curtain wall frame. It is connected to the main beam 1 by a plug-in method. For example, one end of the transverse connector 2 is designed as a standard tenon structure, while the other end can be processed into a snap or other similar mechanical interlocking form, so that it can be easily inserted into the reserved interface of the main beam 1, while ensuring a stable connection between the two.
[0020] The concealed bolt 3 is a crucial fixing device for the frame, slidably located within the grooved guide rail 11 on the main beam 1. The design of the concealed bolt 3 allows it to be moved and adjusted within the rail according to specific needs. Technically, the concealed bolt 3 can be manufactured using high-hardness steel to withstand significant external tensile or shear forces. Furthermore, special attention must be paid to the surface smoothing process during production to ensure smooth sliding within the grooved rail without significant resistance.
[0021] The pressure plate 4 covers the groove of the main beam 1, serving to lock the concealed bolts 3 and protect them from external environmental interference. The pressure plate 4 can be securely installed on the main beam 1 using screws or other locking devices, thus achieving a closed protective function. For example, it can be designed as an aluminum alloy sheet and used with special sealing tape to further enhance the protective effect and aesthetics.
[0022] The adjusting nut 5 is fitted onto one end of the concealed bolt 3. By rotating the adjusting nut 5, the position of the concealed bolt 3 can be subtly changed, thereby achieving precise control over the final alignment adjustment. In practical applications, different types of nut structures, such as standard hexagonal nuts or internal hexagonal nuts, can be selected. The appropriate specifications and driving tools can be chosen based on the specific operating space to meet the requirements for efficient adjustment.
[0023] To simplify the installation and alignment process of the concealed bolts 3, this design employs several key technical solutions. First, a grooved guide rail 11 is installed inside the main beam 1, with a functional area providing elastic clamping. This structure allows the concealed bolts 3 to be flexibly pre-positioned without easily detaching from their original designated area. Second, the introduction of scale markings 12 further enhances the intuitiveness and accuracy of the alignment operation. Simultaneously, the addition of an adjustable pressure plate 4 and adjusting nut 5 in the later stages of installation provides the system with secondary correction capabilities, enabling rapid and precise correction even in the presence of minor errors. These combined measures significantly reduce the time and cost associated with repeated manual checks and verifications that could arise from traditional manual positioning methods.
[0024] In one embodiment, the scale marking 12 of a curtain wall frame structure of this application employs a magnetic ruler solution. The outer surface of the main beam 1 is designed with a material capable of metal adsorption, thus adapting to the magnetic ruler. This ruler is not fixed to the main beam 1, but serves as an auxiliary positioning tool, which can be flexibly used during the installation phase and then disassembled and recycled. The magnetic ruler typically consists of a flexible magnetic sheet and a scale panel, which are connected in a nested manner. The scale panel surface is marked with precise dimensional graduations to guide the installation position of the concealed bolts 3. Specifically, the magnetic ruler is magnetically attached to the outer surface of the main beam 1, its length direction is consistent with the main beam 1, and it can be moved along the main beam 1 to the target area for positioning.
[0025] For example, the flexible magnetic sheet of the magnetic ruler has anti-slip textures on its bottom to enhance adhesion stability, while the scale panel provides a visual positioning reference line. In the technical implementation process, the magnetic ruler is first attached to the corresponding position on the main beam 1, and the target installation point of the concealed bolt 3 is determined according to the scale on the ruler. Then, the concealed bolt 3 is adjusted to the correct position using the grooved guide rail 11 on the main beam 1, and initially fixed using the elastic clamping part 13, ensuring consistent installation accuracy and efficiency. This method can adapt to complex construction site environments and simplifies the alignment process.
[0026] In one embodiment, the elastic clamping part 13 of a curtain wall frame structure of this application is composed of adjustable tension spring clamps. This design ensures that it can accommodate concealed bolts 3 of different specifications. The specific installation position of the spring clamp is located inside the installation end of the main beam 1, and it is distributed adjacent to the grooved guide rail 11. This connection not only allows the spring clamp to effectively fix the initial position of the concealed bolt 3, but also allows the concealed bolt 3 to be adjusted along the rail as necessary. Specifically, the spring clamp is fixed to the main beam 1 through a preset mounting hole, and uses its own elastic tension to apply a stable force to the concealed bolt 3, thereby preventing the bolt from loosening in an unlocked state.
[0027] For example, to technically achieve this feature, the spring clamp can be constructed from a set of elastic plates of specific dimensions, with one end of each plate fixed to the inner wall of the main beam 1 and the other end forming a appropriately sized clamping space to accommodate the concealed bolt 3. The tension adjustment function of the spring clamp is accomplished by a fine-tuning bolt; by changing the screw depth of the fine-tuning bolt, the elastic plate can be compressed or loosened to accommodate concealed bolts 3 of different diameters. This approach makes the entire structure more flexible and improves compatibility and efficiency during installation.
[0028] In one embodiment, the horizontal connector 2 of the curtain wall frame structure of this application is optimized to further improve the convenience of installation. Specifically, pre-positioning buckles 18 are provided at both ends of the horizontal connector 2. This structure can reliably fix the horizontal connector 2 to a specific position on the main beam 1 through mechanical engagement, laying the foundation for subsequent alignment of the concealed bolts 3. In actual construction, since the grooved guide rail 11 of the main beam 1 provides limited adjustment space, the pre-positioning buckles 18 can effectively prevent the horizontal connector 2 from undergoing unexpected displacement.
[0029] For example, in terms of technical implementation, elastic protrusions can be formed at both ends of the transverse connector 2 and matched with corresponding slot areas on the outer side of the main beam 1. These elastic protrusions possess sufficient restoring force, allowing them to flexibly disengage from the slots during pressing or pulling, while remaining securely engaged under normal force, thus ensuring the reliability of pre-positioning. Simultaneously, this pre-positioning function does not alter the ability of the concealed bolt 3 to slide and adjust along the track, making the overall structural design more rational and suitable for assembly requirements.
[0030] In one embodiment, a flexible sealing sleeve 21 is added to the tail end of the concealed bolt 3 in a curtain wall frame structure of this application. The flexible sealing sleeve 21 is directly connected to the concealed bolt 3. This structural design allows the concealed bolt 3 to maintain a relatively independent working environment, preventing external particles or impurities from intruding through the sliding area. The flexible sealing sleeve 21 is made of elastic material and covers the gap between the tail end of the concealed bolt 3 and the inner guide rail of the main beam 1 during installation. Due to its flexibility, the flexible sealing sleeve 21 does not significantly hinder the movement of the concealed bolt 3 as it slides along the grooved guide rail 11, and it always conforms to the movement trajectory to form an effective protective barrier.
[0031] To ensure accurate connection and proper functioning of this design, the following approach can be taken: Specifically, during installation, the flexible sealing sleeve 21 is fixed to the end of the concealed bolt 3 by compression or adhesion. Simultaneously, the outer edge of the flexible sealing sleeve 21 slightly extends beyond the edge of the guide rail surface to completely isolate it from the influence of the external environment. Furthermore, to accommodate the sliding requirements of the bolt within the guide rail, the flexible sealing sleeve 21 can be pre-tested for mechanical properties to ensure its flexibility and wear resistance meet usage standards, thereby preventing damage and loss of sealing function due to prolonged operation. For example, high-density polyurethane can be used as the main material, providing sufficient elasticity while also considering lifespan and stability.
[0032] In one embodiment, one side of the pressure plate 4 of a curtain wall frame structure of this application is provided with a serrated fitting edge 22. This structural design ensures that the serrated fitting edge 22 can precisely match the outside of the groove on the main beam 1, thereby applying sufficient fixing force to the concealed bolts 3 after installation. The serrated fitting edge 22, through its special geometric distribution, effectively restricts the position of the concealed bolts 3 by the pressure plate 4, while retaining its convenience for disassembly and maintenance.
[0033] The pressure plate 4 is installed outside the groove of the main beam 1, with its serrated fitting edge 22 directly facing the edge of the groove of the main beam 1 for mating. Specifically, this serrated fitting edge 22 is composed of alternating raised and recessed areas, each part of which meets certain proportional and angular requirements to ensure high reliability and stability during connection. In addition, the fitting edge design also reserves a certain tolerance space to facilitate the correction of small deviations that may occur during actual assembly.
[0034] For example, in terms of technical implementation, the following method can be adopted: A pressure plate 4 assembly with standard geometric parameters is pre-manufactured. The serrated interlocking edge 22 is generated by die stamping or machining. This pressure plate 4 assembly is then aligned with the scale marks 12 on the surface of the main beam 1 using a specific tool and pressure is applied for installation. Subsequently, the concealed bolts 3 are adjusted to the required positions, and finally, the adjusting nut 5 is used for fine-tuning to complete the overall installation and positioning. At this point, the pressure plate 4, with its serrated interlocking edge 22, firmly adheres to the main beam 1, forming a tightly fixed system.
[0035] In one embodiment, a locking mechanism is added between the pressure plate 4 and the main beam 1 of a curtain wall frame structure to enable quick fixing or disassembly. This locking mechanism is installed between the main beam 1 and the pressure plate 4, and the two are securely connected through a specific connection method. Specifically, the mechanism consists of a locking element and its matching parts, and can adapt to the shape of the pressure plate 4 and the corresponding area on the main beam 1, forming a stable constraint relationship. This design allows for upgrades and optimizations without requiring additional changes to the basic structure of the original components.
[0036] For example, the locking mechanism includes a locking element with a threaded hole and a matching manual operating component. When the user applies torque to the locking element manually or with the aid of a tool, the locking element can be moved along the direction of the main beam 1. During this process, the locking element presses against the pressure plate 4 to securely cover the external position of the concealed bolt 3, thereby preventing it from displacing or falling off.
[0037] Specifically, this rapid tightening or loosening function can be achieved by designing a threaded connection assembly with self-locking properties, ensuring that it will not loosen on its own even under prolonged vibration. At the same time, to ensure ease of operation, sufficient rotation space can be provided for the locking mechanism, and positioning marks can be set for precise operation.
[0038] In actual operation, when this device is used, the concealed bolt 3 can be moved to the designated position along the grooved guide rail 11 on the inner side of the main beam 1, and the installation position can be accurately determined by the scale mark 12 on the outer surface of the main beam 1. Then, the initial position of the concealed bolt 3 is fixed by the elastic clamping part 13 to simplify the subsequent alignment process. Then, the transverse connector 2 is connected to the main beam 1 by plugging to enhance the transverse stability of the overall frame. Then, the pressure plate 4 is covered on the outside of the groove on the main beam 1 to lock the position of the concealed bolt 3 and protect it from external interference. At the same time, the position of the concealed bolt 3 is finely adjusted by rotating the adjusting nut 5 to complete the final alignment. Finally, the entire curtain wall frame is fixed to the main structure of the building by the concealed bolt 3 and connected to other adjacent frame components by the transverse connector 2.
[0039] The above description is the preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this invention, and these improvements and modifications should also be considered within the scope of protection of this application.
Claims
1. A curtain wall frame structure, characterized in that, include: The main beam (1) is used to support the entire curtain wall frame and transfer the load to the main building structure. The inner side of the main beam (1) is provided with a grooved guide rail (11). The outer surface of the main beam (1) has scale markings (12) for accurately determining the installation position. The main beam (1) is provided with an elastic clamping part (13) at the installation end for fixing the initial position of the hidden bolts (3) to simplify the alignment process. The transverse connector (2) is connected to the main beam (1) by a plug-in method to enhance the overall transverse stability of the frame; Concealed bolts (3), which are slidably located in the grooved guide rails (11) of the main beam (1), are used to fix the frame to the main building structure; The pressure plate (4) covers the outside of the grooved guide rail (11) on the main beam (1) and is used to lock the position of the concealed bolt (3) and protect it from external interference. Adjusting nut (5) is set at one end of concealed bolt (3). By rotating adjusting nut (5), the position of concealed bolt (3) can be finely adjusted to complete the final alignment. The main beam (1) is connected to the adjacent frame assembly via transverse connectors (2), and concealed bolts (3) are locked at designated positions on the main beam (1) via pressure plates (4).
2. The curtain wall frame structure according to claim 1, characterized in that: The scale markings (12) on the main beam (1) are magnetic scales. The scales can be detached and attached to the outer surface of the main beam for further precise positioning of the hidden bolts.
3. A curtain wall frame structure according to claim 1, characterized in that: The elastic clamping part (13) consists of adjustable tension spring clamps to accommodate concealed bolts of different sizes.
4. A curtain wall frame structure according to claim 1, characterized in that: The transverse connector (2) has pre-positioning buckles (18) at both ends to pre-fix its position relative to the main beam (1) during installation, which facilitates the alignment operation of the concealed bolts (3).
5. A curtain wall frame structure according to claim 1, characterized in that: The tail end of the concealed bolt (3) is provided with a flexible sealing sleeve (21). The flexible sealing sleeve (21) can prevent external impurities from entering and hindering the sliding, and maintain the precise movement of the concealed bolt.
6. A curtain wall frame structure according to any one of claims 1-5, characterized in that: One side of the pressure plate (4) is provided with a serrated interlocking edge (22) to ensure that sufficient fixing force is applied to the concealed bolt (3) after installation and that it is easy to disassemble and maintain.
7. A curtain wall frame structure according to any one of claims 1-5, characterized in that: The pressure plate (4) is fixed to the main beam (1) by a locking mechanism (23), which can be quickly tightened or loosened by manual or tool rotation.