Fabricated building structure external wall panel connecting and fixing device

Abstract

The utility model discloses a fabricated building structure external wall panel connecting and fixing device, and aims to improve the stability and reliability of connection between an external wall panel and a main wall body. The device comprises a main wall body, an ALC external wall panel, a corner connector, a connecting plate, a hook bolt and the like. Corner connectors are arranged at the upper end and the lower end of the area, connected with the ALC external wall panel, of the main wall body, and the stability of the connecting area is enhanced. And the connecting plate adopts a high-strength metal plate, so that the bearing capacity and the non-deformability are improved. In addition, the device is further provided with a daub layer, the daub layer covers the outer portions of the corner connectors, the connecting plates and the hook bolts, and the sealing, waterproof and damp-proof effects are achieved. The adhesive layers are arranged in gaps between the corner connector and the main wall body and between the connecting plate and the ALC external wall panel, so that the sealing performance and the buffering performance are enhanced; and the hook head and the straight rod part of the hook head bolt are provided with anti-skid structures to prevent the bolt from loosening and slipping. The external wall panel connecting structure is reasonable in structure, stable in connection and capable of effectively improving the connecting quality and durability of the external wall panel of the fabricated building structure.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a connection and fixing device for exterior wall panels of prefabricated building structures. Background Technology

[0002] In the field of prefabricated buildings, ALC (autoclaved aerated concrete) exterior wall panels are widely used in building exterior decoration and enclosure structures due to their excellent properties such as lightweight, thermal insulation, and sound insulation. However, how to efficiently and securely fix ALC exterior wall panels to the main wall has always been a technical problem that needs to be solved in the industry.

[0003] Traditional methods of fixing exterior wall panels have many drawbacks. For example, some fixing methods involve on-site wet work, which connects the main wall and the exterior wall panel by pouring concrete mortar or other materials. This wet work method not only has a long construction period and is greatly affected by weather and environmental factors, but also makes it difficult to guarantee the construction quality, easily leading to quality problems such as hollowing and cracking, which affect the overall performance and aesthetics of the building. Utility Model Content

[0004] The purpose of this utility model is to provide a prefabricated building structure exterior wall panel connection and fixing device, which can efficiently, quickly, stably and reliably fix the ALC exterior wall panel to the main wall.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a prefabricated building structure exterior wall panel connection and fixing device, the prefabricated building structure exterior wall panel connection and fixing device comprising:

[0006] Corner brackets, which are fixed to the main wall using expansion screws;

[0007] A connecting plate, which is fixed to the corner bracket, has multiple connecting holes.

[0008] Multiple hook bolts are provided, each hook bolt penetrating the ALC exterior wall panel. The threaded section of the hook bolt is inserted into the connecting hole of the connecting plate, and the hook bolt is locked and fixed to the connecting plate by a nut.

[0009] In one embodiment, the corner brackets are provided at both the upper and lower ends of the area where the main wall connects to the ALC exterior wall panel.

[0010] In one embodiment, the connecting plate is a high-strength metal plate.

[0011] In one embodiment, a putty layer is further included, which covers the exterior of the corner bracket, connecting plate, and hook bolt.

[0012] In one embodiment, an adhesive layer is further included, which is disposed in the gap between the corner bracket and the main wall, and in the gap between the connecting plate and the ALC exterior wall panel.

[0013] In one embodiment, both the hook portion and the straight rod portion of the hook bolt are provided with anti-slip structures.

[0014] The above-described technical solutions in the embodiments of this utility model have at least the following technical effects or advantages:

[0015] The prefabricated building structure exterior wall panel connection and fixing device provided in this embodiment uses expansion screws to fix the corner brackets to the main wall, and then uses convenient methods such as welding or threaded connection to fix the connecting plate to the corner brackets. Finally, hook bolts are inserted into the pre-drilled through holes in the ALC exterior wall panel and locked with nuts to fix the hook bolts to the connecting plate. The entire installation process is simple to operate, requires no complicated wet work, greatly shortens the construction cycle, improves construction efficiency, and can effectively meet the needs of rapid construction of modern prefabricated buildings.

[0016] Furthermore, the corner brackets are firmly fixed to the main wall using expansion bolts, providing a solid foundation for the entire connection structure. After the hook bolts penetrate the ALC exterior wall panel, their threaded sections are inserted into the connection holes of the connecting plate and locked in place with nuts. This connection method ensures a reliable connection between the ALC exterior wall panel and the main wall, guaranteeing the structural safety and stability of the building. Attached Figure Description

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

[0018] Figure 1 A schematic diagram of the prefabricated building structure exterior wall panel connection and fixing device provided in this embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the structure of the corner bracket after it has been installed on the main wall, as provided in this embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure after the connecting plate is fixed to the corner bracket according to an embodiment of the present utility model;

[0021] Figure 4 A schematic diagram of the structure after the ALC exterior wall panel is connected to the main wall, provided in an embodiment of this utility model;

[0022] Figure 5 for Figure 4 A schematic diagram of the structure after the ALC exterior wall panel is covered with a layer of mortar at the connection with the main wall.

[0023] The labels for the various figures are as follows:

[0024] 1. Angle bracket; 2. Connecting plate; 3. Hook bolt; 4. Expansion screw; 5. Main wall; 6. ALC exterior wall panel; 7. Mortar layer; 21. Connecting hole. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0027] 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed 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 utility model according to the specific circumstances.

[0029] Please see Figures 1 to 4This application provides a prefabricated building structure exterior wall panel connection and fixing device, including an angle bracket 1, a connecting plate 2, and multiple hook bolts 3. The angle bracket 1 is fixed to the main wall 5 by expansion screws 4; the connecting plate 2 is fixed to the angle bracket 1 and has multiple connecting holes 21; the hook bolts 3 penetrate the ALC exterior wall panel 6, with the threaded section of the hook bolt 3 inserted into the connecting hole 21 of the connecting plate 2, and are locked and fixed to the connecting plate 2 by nuts.

[0030] The prefabricated building structure exterior wall panel connection and fixing device provided by this utility model uses expansion screws 4 to fix the corner bracket 1 to the main wall 5 (e.g., ...). Figure 2 (As shown), and then the connecting plate 2 is fixed to the corner bracket 1 by welding or threaded connection (as shown). Figure 3 As shown), finally, the hook bolt 3 is inserted into the pre-drilled through hole on the ALC exterior wall panel 6, and the threaded section of the hook bolt 3 is inserted into the connecting hole 21 of the connecting plate 2. Finally, the hook bolt 3 is fixedly connected to the connecting plate 2 by tightening the nut (as shown). Figure 4 As shown in the figure, this achieves the goal of efficiently and quickly fixing the ALC (autoclaved aerated concrete) exterior wall panels to the main wall 5.

[0031] In one embodiment, corner brackets 1 are provided at both the upper and lower ends of the connection area between the main wall 5 and the ALC exterior wall panel 6. By providing corner brackets 1 at both the upper and lower ends of the connection area between the main wall 5 and the ALC exterior wall panel 6, the stability of the connection area can be enhanced, the stress borne by the connection part can be distributed, and the connection between the exterior wall panel and the main wall 5 can be made more firm and reliable. This effectively prevents the connection part from loosening, deforming, or even being damaged due to stress concentration or external forces, and improves the structural strength and durability of the entire exterior wall panel connection and fixing device.

[0032] In one embodiment, the connecting plate 2 is a high-strength metal plate. Using a high-strength metal material (such as high-strength steel plate) to make the connecting plate 2 improves its load-bearing capacity and resistance to deformation. When bearing the weight transmitted by the exterior wall panel and external forces, the high-strength metal connecting plate 2 is less prone to deformation or damage, thus ensuring a stable connection between the exterior wall panel and the main wall 5.

[0033] In one embodiment, it further includes a putty layer 7, which covers the exterior of the corner bracket 1, the connecting plate 2, and the hook bolt 3 (e.g., Figure 5 (As shown). The putty layer 7 is installed on the outside of the corner bracket 1, the connecting plate 2, and the hook bolt 3. It can seal, waterproof, and prevent moisture, preventing external moisture and dust from entering the connection parts, avoiding rust and corrosion of the connection parts due to moisture, and also enhancing the integrity and aesthetics of the connection parts, and improving the service life and reliability of the external wall panel connection and fixing device.

[0034] Specifically, after installing the corner bracket 1, connecting plate 2, and hook bolt 3, the prepared adhesive material is evenly applied to the outer surfaces of the corner bracket 1, connecting plate 2, and hook bolt 3. During application, ensure the adhesive layer 7 is of uniform thickness, fully covers all areas, and leaves no gaps. After the adhesive has naturally dried and cured, a complete adhesive layer 7 is formed.

[0035] In one embodiment, an adhesive layer is also included, which is disposed in the gap between the corner bracket 1 and the main wall 5, and in the gap between the connecting plate 2 and the ALC exterior wall panel 6. After installing the corner bracket 1 and the connecting plate 2, a special adhesive is used to evenly fill the gap between the corner bracket 1 and the main wall 5, and the gap between the connecting plate 2 and the ALC exterior wall panel 6, using a caulking gun or other tools. During the filling process, it is necessary to ensure that the adhesive fully fills the gaps without air bubbles or voids, and the adhesive layer is formed after the adhesive cures.

[0036] An adhesive layer is installed in the gap between the corner bracket 1 and the main wall 5, and in the gap between the connecting plate 2 and the ALC exterior wall panel 6. This fills the gap, enhances the sealing of the connection, prevents rainwater and air from entering through the gap, protects the connecting parts from external environmental factors, and improves the stability and durability of the connection.

[0037] In one embodiment, both the hook head portion and the straight shank portion of the hook bolt 3 are provided with anti-slip structures. Specifically, these anti-slip structures can be formed on the hook head portion and the straight shank portion using specific processes (such as knurling, drilling, or adding protrusions). For example, knurling can be used to create regular patterns on the bolt surface, increasing surface roughness; or drilling can be performed in key areas to create protrusions or other structures, enhancing the friction between the bolt and the connecting components and achieving an anti-slip effect.

[0038] Anti-slip structures are provided on both the hook head and straight rod parts of the hook bolt 3, which can increase the friction between the hook bolt 3 and the connecting parts (such as the angle bracket 1, connecting plate 2, etc.), prevent the hook bolt 3 from loosening or slipping when subjected to external force, ensure a more stable connection between the exterior wall panel and the main wall 5, and improve the safety and reliability of the connection and fixing device.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A prefabricated building structure exterior wall panel connection and fixing device, characterized in that, The prefabricated building structure exterior wall panel connection and fixing device includes: Corner brackets, which are fixed to the main wall using expansion screws; A connecting plate, which is fixed to the corner bracket, has multiple connecting holes. Multiple hook bolts are provided, each hook bolt penetrating the ALC exterior wall panel. The threaded section of the hook bolt is inserted into the connecting hole of the connecting plate, and the hook bolt is locked and fixed to the connecting plate by a nut.

2. The prefabricated building structure exterior wall panel connection and fixing device according to claim 1, characterized in that: The corner brackets are provided at both the top and bottom ends of the area where the main wall connects to the ALC exterior wall panel.

3. The prefabricated building structure exterior wall panel connection and fixing device according to claim 1, characterized in that: The connecting plate is a high-strength metal plate.

4. The prefabricated building structure exterior wall panel connection and fixing device according to claim 1, characterized in that: It also includes a putty layer, which covers the outside of the corner bracket, connecting plate, and hook bolt.

5. The prefabricated building structure exterior wall panel connection and fixing device according to claim 1, characterized in that: It also includes an adhesive layer, which is disposed in the gap between the corner bracket and the main wall, and in the gap between the connecting plate and the ALC exterior wall panel.

6. The prefabricated building structure exterior wall panel connection and fixing device according to claim 1, characterized in that: Both the hook head and the straight rod of the hook bolt are equipped with anti-slip structures.

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