Sandwich type prefabricated light aggregate concrete composite external wall panel

Abstract

The application relates to a sandwich type prefabricated light aggregate concrete composite outer wall panel and relates to the field of concrete composite outer wall panels. The outer wall panel comprises an inner frame and an inner core plate which is inserted and installed in the inner frame, the inner frame comprises a bottom frame and a vertical frame, the vertical frame is in two groups, the two groups of vertical frames are vertically installed at two ends of the bottom frame, the inner core plate is inserted and fixed between the bottom frame and the two groups of vertical frames, the two ends of the inner core plate are respectively provided with a first composite baffle and a second composite baffle, and the first composite baffle and the second composite baffle are fixedly installed between the two groups of vertical frames. The outer wall panel adopts foam inner plates, foam outer plates and other thermal insulation materials and reasonable structural design, can effectively reduce heat transfer, reduce the energy consumption of buildings and meet the requirements of energy saving and environmental protection. The first sound insulation plate and the second sound insulation plate are provided, the path of sound propagation is increased through special structures such as corrugated baffles and bubble baffles.

Description

Technical Field

[0001] This application relates to the technical field of concrete composite exterior wall panels, and in particular to a sandwich-type precast lightweight aggregate concrete composite exterior wall panel. Background Technology

[0002] With the development of the construction industry, the performance requirements for building exterior wall panels are becoming increasingly stringent. Traditional exterior wall panels have certain shortcomings in terms of thermal insulation, sound insulation, and ease of installation. For example, poor thermal insulation performance can lead to increased building energy consumption. Poor sound insulation can affect indoor living comfort. Complex installation processes can increase construction costs and time.

[0003] Traditional exterior wall panels often use single materials or simple composite structures. Ordinary concrete wall panels, while possessing a certain structural strength, have extremely poor thermal insulation performance and a high thermal conductivity, leading to intense heat exchange between the building's interior and exterior. This results in significant energy consumption for heating in winter and reliance on air conditioning for cooling in summer, which contradicts the trend of energy conservation and emission reduction. Although some insulated exterior wall panels incorporate insulation materials such as foam plastics, they are often simply stacked designs with loose bonding between materials, easily creating thermal bridging effects. Heat is rapidly transferred through the metal frame or splicing gaps, significantly weakening the insulation effect. In terms of sound insulation, most wall panels rely solely on the material's own density for sound insulation, without any dedicated soundproofing structure. Their effectiveness in blocking low-frequency noise from external traffic and construction is limited. Furthermore, traditional precast wall panels use bolt fixing or on-site casting methods, making installation cumbersome, requiring highly skilled construction workers, and prone to gaps at joints that necessitate additional sealing. This not only prolongs the construction period but also increases labor and material costs. Utility Model Content

[0004] In order to achieve thermal insulation and reduce installation difficulty, this application provides a sandwich-type precast lightweight aggregate concrete composite exterior wall panel.

[0005] This application provides a sandwich-type precast lightweight aggregate concrete composite exterior wall panel using the following technical solution: A sandwich-type precast lightweight aggregate concrete composite exterior wall panel includes an inner frame and an inner core panel inserted into the inner frame. The inner frame includes a bottom frame and two sets of vertical frames, which are vertically installed at both ends of the bottom frame. The inner core panel is inserted and fixed between the bottom frame and the two sets of vertical frames. A first composite baffle and a second composite baffle are respectively installed at both ends of the inner core panel. The first composite baffle and the second composite baffle are both fixedly installed between the two sets of vertical frames. A concrete mortar outer layer covering the first composite baffle and the second composite baffle is also provided on the outer side of the inner frame.

[0006] By adopting the above technical solution, the internal frame provides a stable support framework for the inner core panel, allowing it to be securely installed. The first and second composite baffles are installed at both ends of the inner core panel, further enhancing the overall performance of the exterior wall panel. The outer layer of concrete mortar not only protects the internal structure but also improves the durability and impact resistance of the exterior wall panel, while also serving a decorative purpose, making the exterior wall panel more aesthetically pleasing.

[0007] Optionally, both the bottom frame and the upright frame have insertion slots on their inner sides for inserting and installing the inner core board, and sealing strips are uniformly fixed in the insertion slots.

[0008] By adopting the above technical solution, the interlocking grooves on the inner sides of the bottom frame and vertical frame facilitate the installation of the inner core panel, making the installation process simpler and faster, and improving construction efficiency. The sealing strips evenly fixed in the interlocking grooves can effectively prevent rainwater, dust, etc. from entering the interior of the exterior wall panel, enhancing the sealing and waterproof performance of the exterior wall panel and extending its service life.

[0009] Optionally, the inner core plate includes a mixing plate and anti-collision corner plates, wherein the anti-collision corner plates are evenly installed at the four corners of the mixing plate and are fixedly connected to the mixing plate.

[0010] By adopting the above technical solution, the inner core panel uses a combination structure of a mixed material board and anti-collision corner plates. The mixed material board can be made by mixing appropriate materials according to different needs to meet the strength, thermal insulation and other performance requirements of the exterior wall panel. The anti-collision corner plates are installed at the four corners of the mixed material board, which can effectively prevent the mixed material board from being damaged by bumps during handling and installation, protect the integrity of the inner core panel and improve the product qualification rate.

[0011] Optionally, the first composite baffle includes a foam inner panel and a first sound insulation panel, wherein the foam inner panel is installed on the outer side of the first sound insulation panel and is fixedly connected to the first sound insulation panel.

[0012] By adopting the above technical solution, the first composite baffle consists of a foam inner board and a first sound insulation board. The foam inner board has good thermal insulation properties, which can effectively reduce heat transfer and lower the building's energy consumption. The first sound insulation board can block external noise, improve the indoor quietness, and provide residents with a comfortable living environment.

[0013] Optionally, the first sound insulation panel includes a first outer frame and a corrugated baffle, wherein the corrugated baffle is installed in the first outer frame and the four sides of the corrugated baffle are fixedly connected to the inner side of the first outer frame.

[0014] By adopting the above technical solution, the first sound insulation panel uses a structure of a first outer frame and a corrugated baffle. The special shape of the corrugated baffle increases the sound propagation path, causing the sound to be continuously reflected and refracted during propagation, thereby consuming more sound energy and improving the sound insulation effect. The first outer frame provides fixation and protection for the corrugated baffle, ensuring its stability.

[0015] Optionally, the second composite baffle includes a foam outer panel and a second sound insulation panel, wherein the foam outer panel is installed on the outer side of the second sound insulation panel and is glued and fixed to the second sound insulation panel.

[0016] By adopting the above technical solution, the second composite baffle consists of a foam outer panel and a second sound insulation panel. The foam outer panel further enhances the thermal insulation performance of the exterior wall panel and works in conjunction with the foam inner panel of the first composite baffle to form a better thermal insulation effect. The second sound insulation panel works together with the first sound insulation panel to improve the overall sound insulation performance of the exterior wall panel.

[0017] Optionally, the second sound insulation panel includes a second outer frame and a bubble baffle, wherein the bubble baffle is installed in the second outer frame and the four sides of the bubble baffle are fixedly connected to the second outer frame.

[0018] By adopting the above technical solution, the second sound insulation panel uses a structure of a second outer frame and bubble baffles. The bubbles inside the bubble baffles can absorb and disperse sound, achieving a good sound insulation effect. The second outer frame fixes the bubble baffles, ensuring the stability of its structure and making the sound insulation effect more durable.

[0019] Optionally, the outer layer of the concrete mortar includes an alkali-resistant mesh portion and a mortar portion, wherein the alkali-resistant mesh portion is fixedly installed on the inner side of the mortar portion.

[0020] By adopting the above technical solution, the outer layer of concrete mortar uses a structure of alkali-resistant mesh and mortar. The alkali-resistant mesh enhances the tensile strength and crack resistance of the mortar, preventing cracks from forming and improving the overall performance of the outer layer of concrete mortar. Simultaneously, the alkali-resistant mesh also bonds better with the mortar, allowing the outer layer of concrete mortar to adhere more firmly to the inner frame.

[0021] In summary, this application includes at least one of the following beneficial technical effects: The exterior wall panels of this application utilize insulation materials such as foam inner panels and foam outer panels, along with a reasonable structural design, which can effectively reduce heat transfer, lower building energy consumption, and meet energy conservation and environmental protection requirements. The installation of the first and second sound insulation panels, through special structures such as corrugated baffles and bubble baffles, increases the sound propagation path, consumes sound energy, and effectively blocks external noise, providing a quiet living environment indoors. The interlocking slot design of the inner frame makes the installation of the inner core panel simple and quick, improving construction efficiency and reducing construction costs. The installation of the concrete mortar outer layer and the use of sealing strips enhance the sealing, waterproofing, and impact resistance of the exterior wall panels, extending their service life. Attached Figure Description

[0022] Figure 1 This is an exploded structural diagram of the overall structure in the embodiments of this application.

[0023] Figure 2 yes Figure 1 Top view of the device shown.

[0024] Figure 3 This is a perspective view of the inner frame in an embodiment of this application.

[0025] Figure 4 This is a perspective view of the first and second sound insulation panels in the embodiments of this application.

[0026] Figure 5 yes Figure 4 A cross-sectional view of the device shown.

[0027] Explanation of reference numerals in the attached drawings: 1. Inner frame; 11. Bottom frame; 111. Insertion groove; 12. Vertical frame; 2. Inner core board; 21. Mixing board; 22. Anti-collision corner board; 3. First composite baffle; 31. Foam inner board; 32. First sound insulation board; 321. First outer frame; 322. Corrugated baffle; 4. Second composite baffle; 41. Foam outer board; 42. Second sound insulation board; 421. Second outer frame; 422. Bubble baffle; 5. Outer layer of concrete mortar; 51. Alkali-resistant mesh section; 52. Mortar section. Detailed Implementation

[0028] The present application will be further described in detail below with reference to the accompanying drawings.

[0029] This application discloses a sandwich-type precast lightweight aggregate concrete composite exterior wall panel. (Refer to...) Figure 1 , Figure 2 and Figure 3As shown, a sandwich-type precast lightweight aggregate concrete composite exterior wall panel includes an inner frame 1 and an inner core panel 2 inserted into the inner frame 1. The inner frame 1 includes a bottom frame 11 and two sets of vertical frames 12, which are vertically installed at both ends of the bottom frame 11. The inner core panel 2 is inserted and fixed between the bottom frame 11 and the two sets of vertical frames 12. A first composite baffle 3 and a second composite baffle 4 are respectively installed at both ends of the inner core panel 2. The first composite baffle 3 and the second composite baffle 4 are both fixedly installed between the two sets of vertical frames 12. A concrete mortar outer layer 5 is also provided on the outer surface of the inner frame 1 to cover the first composite baffle 3 and the second composite baffle 4. The inner frame 1 provides a stable support frame for the inner core panel 2, allowing the inner core panel 2 to be firmly installed within it. The first composite baffle 3 and the second composite baffle 4 installed at both ends of the inner core panel 2 further enhance the overall performance of the exterior wall panel. The outer layer 5 of concrete mortar not only protects the internal structure but also improves the durability and impact resistance of the exterior wall panel, while also serving a decorative purpose, making the exterior wall panel more aesthetically pleasing. Both the inner sides of the bottom frame 11 and the vertical frame 12 have insertion grooves 111 for the inner core panel 2, with sealing strips evenly fixed within these grooves. The insertion grooves 111 on the inner sides of the bottom frame 11 and vertical frame 12 facilitate the installation of the inner core panel 2, making the installation process simpler and faster, and improving construction efficiency. The evenly fixed sealing strips within the insertion grooves 111 effectively prevent rainwater and dust from entering the interior of the exterior wall panel, enhancing its sealing and waterproofing performance and extending its service life. The bottom frame 11 and vertical frame 12 of the inner frame 1 can be made of steel, such as Q235 steel, which has good strength and toughness. The sealing strips can be made of rubber, such as EPDM rubber sealing strips, which have good elasticity and sealing properties.

[0030] Reference Figure 2 , Figure 4 and Figure 5As shown, the inner core panel 2 includes a mixing board 21 and anti-collision corner plates 22. The anti-collision corner plates 22 are evenly installed at the four corners of the mixing board 21 and are fixedly connected to it. The inner core panel 2 adopts a combined structure of the mixing board 21 and the anti-collision corner plates 22. The mixing board 21 can be made from suitable materials according to different needs to meet the strength, thermal insulation, and other performance requirements of the exterior wall panel. The anti-collision corner plates 22, installed at the four corners of the mixing board 21, effectively prevent the mixing board 21 from being damaged by impacts during handling and installation, protecting the integrity of the inner core panel 2 and improving the product qualification rate. Furthermore, the mixing board 21 adopts a sandwich structure composed of phase change material and inorganic silicon material. The phase change material automatically adjusts its thermal conductivity through temperature changes, while the inorganic silicon material provides stable thermal insulation and A1-level fire resistance. The combination of the two significantly improves the thermal insulation capacity of the wall, with a thermal conductivity of less than 0.05 W / m·K. The mixed concrete slab 21 can be made of lightweight aggregate concrete. Lightweight aggregates can be ceramsite, perlite, etc., and ordinary Portland cement can be used. The lightweight aggregates, cement, and water are mixed and stirred evenly in a certain proportion, then poured into a mold to form the concrete. The anti-collision corner plates 22 can be made of plastic, such as ABS plastic, which has good toughness and impact resistance. The anti-collision corner plates 22 are installed on the four corners of the mixed concrete slab 21 by adhesive or screws.

[0031] Reference Figure 2 , Figure 4 and Figure 5As shown, the first composite baffle 3 includes a foam inner panel 31 and a first sound insulation panel 32. The foam inner panel 31 is installed on the outer side of the first sound insulation panel 32, and the foam inner panel 31 is fixedly connected to the first sound insulation panel 32. The first composite baffle 3 is composed of the foam inner panel 31 and the first sound insulation panel 32. The foam inner panel 31 has good thermal insulation performance, which can effectively reduce heat transfer and reduce the energy consumption of the building. The first sound insulation panel 32 can block external noise, improve the quietness of the room, and provide a comfortable living environment for the residents. The first sound insulation panel 32 includes a first outer frame 321 and a corrugated baffle 322. The corrugated baffle 322 is installed in the first outer frame 321, and the four sides of the corrugated baffle 322 are fixedly connected to the inner side of the first outer frame 321. The first sound insulation panel 32 adopts the structure of the first outer frame 321 and the corrugated baffle 322. The special shape of the corrugated baffle 322 can increase the sound propagation path, causing the sound to be continuously reflected and refracted during propagation, thereby consuming more sound energy and improving the sound insulation effect. The first outer frame 321 provides fixation and protection for the corrugated baffle 322, ensuring its stability. The inner foam board 31 can be made of polystyrene foam board, which has good thermal insulation properties. The first outer frame 321 of the first sound insulation board 32 can be made of aluminum alloy, such as 6061 aluminum alloy, which is lightweight and high-strength. The corrugated baffle 322 can be made of plastic, such as PVC plastic, and molded into a corrugated shape. The inner foam board 31 and the first sound insulation board 32 are glued together.

[0032] Reference Figure 2 , Figure 4 and Figure 5As shown, the second composite baffle 4 includes a foam outer panel 41 and a second sound insulation panel 42. The foam outer panel 41 is installed on the outer side of the second sound insulation panel 42 and is glued and fixed to the second sound insulation panel 42. The second composite baffle 4 is composed of the foam outer panel 41 and the second sound insulation panel 42. The foam outer panel 41 further enhances the thermal insulation performance of the exterior wall panel and works in conjunction with the foam inner panel 31 of the first composite baffle 3 to form a better thermal insulation effect. The second sound insulation panel 42 works together with the first sound insulation panel 32 to improve the overall sound insulation performance of the exterior wall panel. The second sound insulation panel 42 includes a second outer frame 421 and a bubble baffle 422. The bubble baffle 422 is installed in the second outer frame 421, and the four sides of the bubble baffle 422 are fixedly connected to the second outer frame 421. The second sound insulation panel 42 adopts the structure of the second outer frame 421 and the bubble baffle 422. The bubbles inside the bubble baffle 422 can absorb and disperse sound, playing a good sound insulation role. The second outer frame 421 secures the bubble baffle 422, ensuring structural stability and making the sound insulation effect more durable. The foam outer panel 41 can also be made of polystyrene foam board. The second outer frame 421 of the second sound insulation panel 42 can also be made of 6061 aluminum alloy. The bubble baffle 422 can be made of polyurethane foam plastic, manufactured through a foaming process. The foam outer panel 41 and the second sound insulation panel 42 are glued and fixed together.

[0033] Reference Figure 1 As shown, the outer concrete mortar layer 5 includes an alkali-resistant mesh section 51 and a mortar section 52. The alkali-resistant mesh section 51 is fixedly installed on the inner surface of the mortar section 52. The structure of the outer concrete mortar layer 5, consisting of the alkali-resistant mesh section 51 and the mortar section 52, enhances the tensile strength and crack resistance of the mortar section 52, preventing cracks and improving the overall performance of the outer concrete mortar layer 5. Simultaneously, the alkali-resistant mesh section 51 better bonds with the mortar section 52, allowing the outer concrete mortar layer 5 to adhere more firmly to the inner frame 1. Furthermore, the mortar section 52 uses hollow microsphere lightweight aggregate and optimized proportioning technology. By precisely controlling the aggregate particle size distribution and the proportion of cement matrix, the self-weight of the wall panel is reduced by more than 30% while ensuring structural strength, facilitating transportation and installation. Additionally, self-healing nano-coating technology can be introduced. The coating, composed of functional nanoparticles and environmentally friendly resin, can actively repair micro-cracks, enhance the resistance of the exterior wall panel to environmental erosion such as acid rain and ultraviolet radiation, and extend its service life.

[0034] The implementation principle of a sandwich-type precast lightweight aggregate concrete composite exterior wall panel according to an embodiment of this application is as follows: During actual assembly, the inner frame 1 is first installed, and then the inner core panel 2 is inserted into the inner frame 1 through the insertion slot 111. Next, the first composite baffle 3 and the second composite baffle 4 are respectively installed at both ends of the inner core panel 2 and fixed between the two sets of upright frames 12. Finally, a concrete mortar outer layer 5 is applied to the outer surface of the inner frame 1 to cover the first composite baffle 3 and the second composite baffle 4.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sandwich-type precast lightweight aggregate concrete composite exterior wall panel, comprising an inner frame (1) and an inner core panel (2) inserted and installed in the inner frame (1), characterized in that: The inner frame (1) includes a bottom frame (11) and a vertical frame (12). The vertical frame (12) consists of two sets, and the two sets of vertical frames (12) are vertically installed at both ends of the bottom frame (11). The inner core plate (2) is inserted and fixed between the bottom frame (11) and the two sets of vertical frames (12). The two ends of the inner core plate (2) are respectively equipped with a first composite baffle (3) and a second composite baffle (4). The first composite baffle (3) and the second composite baffle (4) are both fixedly installed between the two sets of vertical frames (12). The outer surface of the inner frame (1) is also provided with a concrete mortar outer layer (5) that covers the first composite baffle (3) and the second composite baffle (4).

2. The sandwich-type precast lightweight aggregate concrete composite exterior wall panel according to claim 1, characterized in that: Both the bottom frame (11) and the upright frame (12) have insertion slots (111) for inserting and installing the inner core plate (2), and sealing strips are evenly fixed in the insertion slots (111).

3. A sandwich-type precast lightweight aggregate concrete composite exterior wall panel according to claim 2, characterized in that: The inner core plate (2) includes a mixing plate (21) and a corner protection plate (22). The corner protection plate (22) is evenly installed on the four corners of the mixing plate (21) and is fixedly connected to the mixing plate (21).

4. A sandwich-type precast lightweight aggregate concrete composite exterior wall panel according to claim 3, characterized in that: The first composite baffle (3) includes a foam inner board (31) and a first sound insulation board (32). The foam inner board (31) is installed on the outer side of the first sound insulation board (32), and the foam inner board (31) is fixedly connected to the first sound insulation board (32).

5. A sandwich-type precast lightweight aggregate concrete composite exterior wall panel according to claim 4, characterized in that: The first sound insulation panel (32) includes a first outer frame (321) and a corrugated baffle (322). The corrugated baffle (322) is installed in the first outer frame (321), and the four sides of the corrugated baffle (322) are fixedly connected to the inner side of the first outer frame (321).

6. A sandwich-type precast lightweight aggregate concrete composite exterior wall panel according to claim 5, characterized in that: The second composite baffle (4) includes a foam outer board (41) and a second sound insulation board (42). The foam outer board (41) is installed on the outer side of the second sound insulation board (42), and the foam outer board (41) is glued and fixed to the second sound insulation board (42).

7. A sandwich-type precast lightweight aggregate concrete composite exterior wall panel according to claim 6, characterized in that: The second sound insulation board (42) includes a second outer frame (421) and a bubble baffle (422). The bubble baffle (422) is installed in the second outer frame (421), and the four sides of the bubble baffle (422) are fixedly connected to the second outer frame (421).

8. A sandwich-type precast lightweight aggregate concrete composite exterior wall panel according to claim 7, characterized in that: The outer layer (5) of the concrete mortar includes an alkali-resistant mesh part (51) and a mortar part (52), wherein the alkali-resistant mesh part (51) is fixedly installed on the inner side of the mortar part (52).

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