Building outer wall reconstruction structure and construction method thereof

Abstract

The application discloses a building outer wall reconstruction structure and a construction method thereof, and relates to the technical field of building outer wall reconstruction. The building outer wall reconstruction structure comprises longitudinal keel mounting racks arranged on the outer wall of a building outer wall, and the longitudinal keel mounting racks are provided with decorative panels. The longitudinal keel mounting racks are arranged at equal intervals along the outer wall of the building outer wall, and the filling areas are formed among the adjacent longitudinal keel mounting racks, the outer surface of the building outer wall and the inner surface of the decorative panels. The expansion thermal insulation glue is filled in the filling areas of the building outer wall, and the light thermal insulation blocks are formed in the filling areas after the expansion thermal insulation glue is solidified. The application has good thermal insulation effect.

Description

A building exterior wall renovation structure and its construction method Technical Field

[0001] This invention relates to the technical field of building exterior wall renovation, and in particular to a building exterior wall renovation structure and its construction method. Background Technology

[0002] Currently, with the progress of urbanization, many buildings in cities, constructed in different eras and styles, have maintained relatively good main structures after several, ten, or even several decades of use. However, the exterior surfaces of most buildings have become dilapidated. To adapt to the needs of the new environment, people have long since begun to renovate and refurbish the exteriors of these buildings. Some buildings not only require exterior modifications but also improvements to their insulation functions.

[0003] To reduce heat transfer and loss, stabilize indoor temperature, and decrease the frequency and duration of air conditioning and heating use to reduce energy consumption and carbon emissions, this paper proposes a new building exterior wall renovation structure and its construction method, given the poor thermal insulation performance of existing building exterior wall renovation structures. Summary of the Invention

[0004] This application provides a building exterior wall renovation structure and its construction method, which has good thermal insulation effect.

[0005] This application provides a building exterior wall renovation structure and its construction method, which adopts the following technical solution:

[0006] A building exterior wall renovation structure and its construction method are disclosed. The building exterior wall renovation structure includes a longitudinal keel mounting frame installed on the outer wall of the building. A decorative panel is installed on the longitudinal keel mounting frame. Several longitudinal keel mounting frames are evenly spaced along the outer wall of the building. A filling area is formed between adjacent longitudinal keel mounting frames, the outer surface of the building exterior wall, and the inner surface of the decorative panel. The filling area of ​​the building exterior wall is filled with expanding thermal insulation adhesive. After the expanding thermal insulation adhesive cures, it forms a lightweight thermal insulation block inside the filling area.

[0007] By adopting the above technical solution, an expanding thermal insulation adhesive is filled in the filling area formed between adjacent longitudinal keel mounting frames, the outer surface of the building exterior wall, and the inner surface of the decorative panel. The expanding thermal insulation adhesive has good thermal insulation performance, which can reduce heat conduction, prevent the exchange of hot and cold, and provide good thermal insulation effect. In winter, it can prevent indoor heat from escaping to the outside; in summer, it can block outdoor heat from penetrating into the room, thereby providing good thermal insulation effect indoors.

[0008] Preferably, the outer surface of the building's exterior wall is provided with a waterproof layer, and a corrosion-resistant layer is provided between the waterproof layer and the building's exterior wall.

[0009] By adopting the above technical solutions, the installation of waterproof and corrosion-resistant layers can reduce problems caused by water penetration and wall corrosion, thereby improving building safety and reducing maintenance costs.

[0010] Preferably, a fireproof mesh is provided in the filling area of ​​the building's exterior wall, and the fireproof mesh is located inside the expanding thermal insulation adhesive.

[0011] By adopting the above technical solutions, the expanding thermal insulation adhesive itself has good thermal insulation performance, while the installation of fireproof mesh can further improve the thermal insulation effect of the filled area, reduce heat conduction, and improve the building's energy-saving performance. In addition, the installation of fireproof mesh can increase the structural strength of the filled area, improve the wind and earthquake resistance of the wall, and improve the overall stability of the building. Furthermore, as the filler of the thermal insulation material, the installation of fireproof mesh can effectively protect the thermal insulation material from the direct attack of fire heat, reducing the risk of damage and fire to the thermal insulation material.

[0012] Preferably, the fireproof net includes a plurality of transverse flame-retardant fibers and longitudinal flame-retardant fibers, which are interwoven in pairs to form a mesh structure and form air vents with a rectangular cross-section.

[0013] By adopting the above technical solution, the cross-weaving of horizontal and vertical flame-retardant fibers forms a fireproof net, which can effectively improve the overall flame-retardant performance of the fireproof net. The fiber material itself has certain fire-resistant properties. When a fire occurs, the fireproof net can block the spread of fire and slow down the spread of flames, thus playing a fireproof role. The fireproof net maintains the breathability of the building wall by forming rectangular ventilation holes, ensuring air circulation and avoiding the fireproof net from affecting the breathing and dehumidification effect of the building wall. The ventilation holes can also effectively reduce the impact of indoor and outdoor temperature differences on the wall material and improve the thermal insulation effect of the wall.

[0014] Preferably, a reinforcing fiber is provided at the intersection of the transverse flame-retardant fiber and the longitudinal flame-retardant fiber, one end of the reinforcing fiber is connected to the intersection of the transverse flame-retardant fiber and the longitudinal flame-retardant fiber, and the other end of the reinforcing fiber is provided with an enlarged head.

[0015] By adopting the above technical solutions, the addition of reinforcing fibers can strengthen the bonding force at the intersection and increase the friction between the transverse and longitudinal flame-retardant fibers, making the fireproof net more robust and stable. This helps maintain the integrity of the fireproof net and improves its tensile and shear strength. The enlarged head of the reinforcing fiber can gradually distribute the force to the surrounding area of ​​the fiber, reducing the stress at the intersection and improving the durability and service life of the fireproof net.

[0016] Preferably, the lightweight insulation block has a serpentine channel inside, the serpentine channel has a serpentine pipe inside, the internal diameter of the serpentine pipe can be changed, and the inside of the serpentine pipe is filled with a material that expands and contracts with temperature.

[0017] By adopting the above technical solutions, the design of channels and serpentine pipes can effectively reduce heat conduction and improve the insulation effect. The thermal expansion and contraction material filled inside the serpentine pipes will expand when heated, filling the pipe space and blocking heat transfer. When cooled, the thermal expansion and contraction material will contract, preventing heat loss. This design can improve the insulation performance of lightweight insulation blocks and reduce energy consumption.

[0018] Preferably, the decorative panel is provided with a locking fastener that matches the longitudinal keel mounting frame, and the decorative panel is fixed to the longitudinal keel mounting frame by the locking fastener.

[0019] By adopting the above technical solution, the decorative panel can be quickly and conveniently installed by fixing it to the longitudinal keel mounting frame with locking fasteners, ensuring a firm and reliable connection between the decorative panel and the longitudinal keel mounting frame. Furthermore, the design of the locking fasteners concentrates the installation points of the decorative panel on the back, reducing visible installation marks on the panel surface. This enhances the aesthetic appeal and overall decorative effect of the decorative panel. Additionally, the decorative panel can be removed from the longitudinal keel mounting frame simply by releasing the locking fasteners; this is extremely convenient for repairing, replacing, or modifying the decorative panel, reducing the complexity and damage of disassembly.

[0020] Preferably, the inner side of the longitudinal keel mounting bracket is provided with a first limiting strip, the inner surface of the decorative panel is provided with a second limiting strip, the first limiting strip is provided with a sub-hook and loop fastener, and the second limiting strip is provided with a female hook and loop fastener that matches the sub-hook and loop fastener.

[0021] By adopting the above technical solution, the decorative panel can be firmly fixed to the longitudinal keel mounting frame through the pairing of the male and female hook and loop fasteners. A large adhesive force can be generated between the male and female hook and loop fasteners, ensuring that the decorative panel is not easily loosened or detached under vibration or external force. Furthermore, the design of the male and female hook and loop fasteners makes the decorative panel relatively easy to remove and replace. Simply separating the male and female hook and loop fasteners allows the decorative panel to be removed from the longitudinal keel mounting frame. This is very convenient for repairing, replacing, or modifying the decorative panel, reducing the complexity and damage of disassembly.

[0022] Preferably, the construction method for the above-mentioned building exterior wall renovation structure includes the following steps:

[0023] S1: Curing the wall surface;

[0024] First, a corrosion-resistant coating and a waterproof coating are sprayed onto the outer surface of the building's exterior wall, forming a corrosion-resistant layer and a waterproof layer on the exterior wall respectively, ultimately resulting in a cured wall.

[0025] S2: Launch baseline;

[0026] First, mark the longitudinal baseline on the outer surface of the hardened wall with an ink line according to the design drawing. The baseline should be marked on each connecting construction surface.

[0027] S3: Install longitudinal keel mounting bracket;

[0028] Based on the position of the baseline, the longitudinal keel mounting brackets are installed on the cured wall surface by embedding expansion screws into the cured wall surface, and a filling area is formed between adjacent longitudinal keel mounting brackets.

[0029] S4: Lay fireproof netting;

[0030] The protective netting is installed by adhesive bonding, ensuring it abuts against the hardened wall surface and is positioned within the filling area.

[0031] S5: Install serpentine pipes;

[0032] Align the serpentine pipe with the protective net and position it between two adjacent reinforcing fibers. Then, inject a thermally expanding and cold-shrinking material into the inside of the serpentine pipe to expand the inside of the serpentine pipe and make the outer circle size of the serpentine pipe smaller than the depth of the filling area.

[0033] S6: Fill with expanding thermal insulation adhesive;

[0034] In the filling area, spray liquid or gel-like expanding insulation adhesive onto the outer surface of the serpentine pipe. The liquid or gel-like expanding insulation adhesive quickly fills the vent holes and the gaps between the reinforcing fibers and the serpentine pipe. After the expanding insulation adhesive expands and cures, a lightweight insulation block is obtained.

[0035] S7: Install decorative panels;

[0036] By utilizing the adhesive properties of the male and female hook and loop fasteners, the decorative panel is quickly positioned on the outer surface of the lightweight insulation block. Then, using fasteners, the decorative panel is fixed to the longitudinal keel mounting frame, thus obtaining the building exterior wall renovation structure.

[0037] By adopting the above-mentioned technical solutions, the construction of solidified walls, corrosion-resistant coatings, and waterproof coatings strengthens the weather resistance of the walls, enabling the building's exterior walls to withstand the erosion of natural environments such as wind and rain. The installation of longitudinal keel mounting frames and the laying of fireproof netting enhances the structural strength of the walls, improving the stability and wind resistance of the building's exterior walls. The laying of fireproof netting and the filling of expanding thermal insulation adhesive increase the fire resistance of the building's exterior walls, improving the overall safety of the building. Furthermore, the filling of expanding thermal insulation adhesive and the installation of decorative panels increase the thermal insulation performance of the exterior walls, improving the building's energy efficiency and reducing energy consumption. In addition, the installation of decorative panels gives the building's exterior walls a better aesthetic appearance, enhancing the overall beauty of the building and increasing its market competitiveness. Therefore, this construction method can improve the weather resistance, strength, fire resistance, and thermal insulation effect of building exterior walls, and also has a good aesthetic effect, making it a comprehensive and effective construction method for renovating building exterior walls.

[0038] In S6, after the expanding thermal insulation adhesive expands and cures, the cured expanding thermal insulation adhesive is trimmed with a blade so that the trimmed surface of the cured expanding thermal insulation adhesive is on the same plane as the longitudinal keel mounting frame.

[0039] By adopting the above technical solution, after trimming the expanding insulation adhesive, the surface of the building's exterior wall can be made smoother, reducing unevenness and improving the overall aesthetics of the exterior wall. Furthermore, the smooth surface of the trimmed expanding insulation adhesive allows for better adhesion of decorative panels, resulting in a more beautiful and secure decorative effect. Moreover, the trimmed expanding insulation adhesive and the longitudinal keel installation frame are on the same plane, ensuring the stability and flatness of the decorative panels and preventing deformation or detachment. In short, placing the cured expanding insulation adhesive trimmed surface on the same plane as the longitudinal keel installation frame improves the overall flatness, decorative effect, and installation quality of the building's exterior wall, facilitating subsequent maintenance.

[0040] In summary, this application has the following beneficial effects:

[0041] 1. Expanded thermal insulation adhesive is filled in the infill area formed between adjacent longitudinal keel mounting frames, the outer surface of the building exterior wall, and the inner surface of the decorative panel. The expanded thermal insulation adhesive has good thermal insulation performance, which can reduce heat conduction, prevent the exchange of hot and cold, and provide good thermal insulation effect. In winter, it can prevent indoor heat from escaping to the outside; in summer, it can block outdoor heat from penetrating into the room, thus achieving energy-saving effect.

[0042] In summary, this application has the following beneficial effects:

[0043] 1. Expanded thermal insulation adhesive is filled in the infill area formed between adjacent longitudinal keel mounting frames, the outer surface of the building exterior wall, and the inner surface of the decorative panel. The expanded thermal insulation adhesive has good thermal insulation performance, which can reduce heat conduction, prevent the exchange of hot and cold, and provide good thermal insulation effect. In winter, it can prevent indoor heat from escaping to the outside; in summer, it can block outdoor heat from penetrating into the room, thereby providing good thermal insulation effect indoors. Attached Figure Description

[0044] Figure 1 is a schematic diagram of the overall structure of the building exterior wall renovation structure in this embodiment;

[0045] Figure 2 is an exploded view of the longitudinal keel mounting frame and the decorative panel in this embodiment;

[0046] Figure 3 is a schematic diagram of the overall structure of the fireproof net in this embodiment;

[0047] Figure 4 is a schematic diagram of the internal structure of the fireproof mesh in this embodiment;

[0048] Figure 5 is an exploded view of the serpentine pipe and serpentine channel in this embodiment;

[0049] Figure 6 is an exploded view of the first limiting bar and the second limiting bar in this embodiment;

[0050] Figure 7 is a construction flowchart of the building exterior wall renovation structure in this embodiment;

[0051] Explanation of reference numerals in the attached drawings: 1. Longitudinal keel mounting frame; 2. Decorative panel; 3. Lightweight insulation block; 4. Waterproof layer; 5. Corrosion-resistant layer; 6. Fireproof mesh; 601. Transverse flame-retardant fiber; 602. Longitudinal flame-retardant fiber; 603. Ventilation hole; 604. Reinforcing fiber; 605. Enlarged head; 7. Serpentine channel; 8. Serpentine pipe; 9. Joint; 10. Locking fastener; 11. First limit strip; 12. Second limit strip; Detailed Implementation

[0052] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0053] This invention discloses a building exterior wall renovation structure and its construction method. As shown in Figure 1, the building exterior wall renovation structure includes a longitudinal keel mounting frame 1 installed on the outer wall of the building. The longitudinal keel mounting frame 1 is fixedly connected to the building exterior wall by expansion screws. A decorative panel 2 is installed on the longitudinal keel mounting frame 1. Several longitudinal keel mounting frames 1 are evenly spaced along the outer wall of the building exterior wall, and a filling area is formed between adjacent longitudinal keel mounting frames 1, the outer surface of the building exterior wall, and the inner surface of the decorative panel 2. The filling area of ​​the building exterior wall is filled with expanding thermal insulation adhesive. After the expanding thermal insulation adhesive cures, it forms a lightweight thermal insulation block 3 inside the filling area. The filling area formed between adjacent longitudinal keel mounting frames 1, the outer surface of the building exterior wall, and the inner surface of the decorative panel 2... The area is filled with expanding thermal insulation adhesive. This adhesive has excellent thermal insulation properties, reducing heat conduction, preventing heat exchange, and providing good insulation. In winter, it prevents indoor heat loss; in summer, it blocks outdoor heat from penetrating indoors, achieving energy savings. The expanding thermal insulation adhesive also has good sound absorption properties, absorbing and reducing sound wave propagation, effectively isolating external noise interference, and providing a quiet and comfortable indoor environment. Furthermore, filling pores with expanding thermal insulation adhesive prevents moisture from entering the wall, effectively preventing dampness and leakage, improving the wall's moisture and water resistance, and extending its service life. Additionally, the expanding thermal insulation adhesive has certain flame-retardant properties, increasing the fire resistance of the building's exterior walls and improving building safety.

[0054] As shown in Figure 2, a waterproof layer 4 is provided on the outer surface of the building's exterior wall, and a corrosion-resistant layer 5 is provided between the waterproof layer 4 and the building's exterior wall. The main function of the waterproof layer 4 is to prevent moisture from penetrating into the interior of the building wall, thereby preventing the wall from becoming damp, leaking, and damaged. The waterproof layer 4 provides effective waterproof protection, keeping the building wall dry and stable. By providing the corrosion-resistant layer 5 between the waterproof layer 4 and the building's exterior wall, the degree of corrosion of building materials by corrosive media can be reduced, extending the service life of the wall. Moreover, the corrosion-resistant layer 5 can act as an isolation layer between the building's exterior wall and the waterproof layer 4, protecting the waterproof layer 4 from the erosion of corrosive media in the external environment, increasing the wall's corrosion resistance. Therefore, the corrosion-resistant layer 5 between the waterproof layer 4 and the building's exterior wall provides an additional protective layer, enhancing the stability of the wall structure, reducing the risk of damage when subjected to external forces and environmental influences, and improving the wall's wind and earthquake resistance. Furthermore, the installation of the waterproof layer 4 and the corrosion-resistant layer 5 can reduce problems caused by water penetration and wall corrosion, thereby improving the building's safety and reducing maintenance costs.

[0055] As shown in Figures 3 and 4, a fireproof mesh 6 is installed within the infill area of ​​the building's exterior wall. The fireproof mesh 6 is located within the expanding thermal insulation adhesive. The fireproof mesh 6 provides an additional barrier layer, effectively preventing the spread of fire in the event of a fire, reducing the risk of fire damage and spread to the building, increasing the time window for evacuation, and improving the building's fire safety. The expanding thermal insulation adhesive itself has good thermal insulation properties, and the installation of the fireproof mesh 6 further enhances the thermal insulation effect of the infill area, reduces heat conduction, and improves the building's energy efficiency. Furthermore, the installation of the fireproof mesh 6 increases the structural strength of the infill area, improves the wall's wind and earthquake resistance, and enhances the overall stability of the building. Additionally, the expanding thermal insulation adhesive, as a filler material for thermal insulation, is protected by fireproof mesh. Fireproof netting 6 effectively protects insulation materials from direct heat during a fire, reducing damage and the risk of ignition. It comprises several transverse flame-retardant fibers 601 and longitudinal flame-retardant fibers 602, interwoven in pairs to form a mesh structure with rectangular ventilation holes 603. This interwoven structure effectively improves the overall flame-retardant performance of the fireproof netting 6. The fiber material itself possesses certain fire-resistant properties; in the event of a fire, the fireproof netting 6 can block the spread of fire and slow its propagation, thus providing fire protection. The fireproof netting 6, through the formation of rectangular... The ventilation holes 603 maintain the breathability of the building walls, ensuring air circulation and preventing the fireproof mesh 6 from affecting the walls' breathing and moisture removal effects. The ventilation holes 603 also effectively reduce the impact of indoor and outdoor temperature differences on the wall materials, improving the wall's thermal insulation performance. The interlaced structure of the transverse and longitudinal flame-retardant fibers 602 increases the tensile, compressive, and shear strength of the fireproof mesh 6, strengthening the overall wall structure, improving the building's earthquake and wind resistance, and increasing its safety. Reinforcing fibers 604 are provided at the intersection of the transverse and longitudinal flame-retardant fibers 601 and 602, with one end of the reinforcing fiber 604 connected to the intersection of the transverse and longitudinal flame-retardant fibers 601 and 602, providing reinforcement. The other end of fiber 604 is provided with an enlarged head 605; the addition of reinforcing fiber 604 can strengthen the bonding force at the intersection and increase the friction between transverse flame-retardant fiber 601 and longitudinal flame-retardant fiber 602, making the fireproof net 6 more robust and stable; this helps to maintain the integrity of the fireproof net 6 and improve its tensile and shear resistance; the enlarged head 605 of reinforcing fiber 604 can gradually distribute the force to the surrounding area of ​​the fiber, reduce the stress at the intersection, and improve the durability and service life of fireproof net 6; moreover, the enlarged head 605 can increase the contact area between transverse flame-retardant fiber 601 and longitudinal flame-retardant fiber 602, and enhance the connection between transverse flame-retardant fiber 601 and longitudinal flame-retardant fiber 602.This design ensures that the transverse flame-retardant fibers 601 and longitudinal flame-retardant fibers 602 are firmly connected at their intersections, preventing detachment or loosening and increasing the overall structural stability and reliability. Furthermore, the enlarged head 605 of the reinforcing fiber 604 creates ohmic contact, promoting a balanced heat distribution in the fireproof mesh 6. This allows the fireproof mesh 6 to absorb and diffuse heat evenly during a fire, reducing heat concentration and conduction, and improving fire resistance and fire protection performance to some extent. In short, the enlarged head 605 at the other end of the reinforcing fiber 604 enhances the connection strength of the fireproof mesh 6, disperses stress, strengthens fiber connections, and increases its fire resistance and stability. This makes the fireproof mesh 6 more reliable and durable in a fire, improving the building's fire safety.

[0056] As shown in Figure 5, the lightweight insulation block 3 has a serpentine channel 7 inside, and a serpentine pipe 8 inside the serpentine channel 7. The internal diameter of the serpentine pipe 8 can be changed. Both ends of the serpentine pipe 8 are equipped with joints 9, which pass through the longitudinal keel mounting frame 1. The joints 9 are equipped with sealing blocks, and the interior of the serpentine pipe 8 is filled with a thermal expansion and contraction material. The thermal expansion and contraction material is a high-molecular thermal expansion and contraction material. This material is mainly made of high-molecular polymers and has good thermal expansion and contraction properties. During the heating process, the molecular chains will unfold and expand, thereby absorbing the contraction caused by the temperature change. During the cooling process, the molecular chains will re-contract and tightly arrange themselves, thereby compensating for the longitudinal deformation caused by the temperature change. It is worth noting that... The design of the serpentine channel 7 and serpentine pipe 8 effectively reduces heat conduction and improves insulation performance. The thermal expansion and contraction material filled inside the serpentine pipe 8 expands when heated, filling the pipe space and blocking heat transfer; while it contracts when cooled, preventing heat loss. This design improves the insulation performance of the lightweight insulation block 3 and reduces energy consumption. Moreover, since the internal diameter of the serpentine pipe 8 can be changed, it can adapt to different diffusion and contraction conditions, avoiding stress concentration caused by temperature changes and reducing the risk of component cracking and deformation. In addition, the gaps and filling material inside the serpentine pipe 8 can effectively absorb and isolate noise, reducing noise propagation and reflection, and providing a relatively quiet environment.

[0057] As shown in Figure 6, the decorative panel 2 is equipped with a locking fastener 10 that matches the longitudinal keel mounting bracket 1. The locking fastener 10 fixes the decorative panel 2 to the longitudinal keel mounting bracket 1. The locking fastener 10 includes a fastening strip, which is usually fixed to the keel. The edge of the decorative panel 2 is then inserted into the fastening strip to form a firm fixation. Fixing the decorative panel 2 to the longitudinal keel mounting bracket 1 with the locking fastener 10 allows for quick and convenient installation and ensures a firm and reliable connection between the decorative panel 2 and the longitudinal keel mounting bracket 1. Moreover, the design of the locking fastener 10 concentrates the installation points of the decorative panel 2 on the back of the decorative panel 2, reducing visible installation marks on the surface of the decorative panel 2. This improves the appearance and overall decorative effect of the decorative panel 2. In addition, the decorative panel 2 can be removed from the longitudinal keel mounting bracket 1 simply by releasing the locking fastener 10. This is very convenient for repairing, replacing, or modifying the decorative panel 2, reducing the complexity and damage of disassembly.

[0058] As shown in Figure 6, the inner side of the longitudinal keel mounting bracket 1 is provided with a first limiting strip 11, and the inner surface of the decorative panel 2 is provided with a second limiting strip 12. The first limiting strip 11 has a first inclined surface, and a sub-hook and loop fastener is provided on the first inclined surface. The second limiting strip 12 has a second inclined surface opposite to the first inclined surface, and a female hook and loop fastener that matches the sub-hook and loop fastener is provided on the second inclined surface. Through the pairing of the sub-hook and loop fastener, the decorative panel 2 can be firmly fixed on the longitudinal keel mounting bracket 1. The sub-hook and loop fastener can generate a large adhesive force, ensuring that the decorative panel 2 is not easily loosened or detached under vibration or external force. Moreover, the design of the sub-hook and loop fastener makes the decorative panel 2 relatively easy to disassemble. The decorative panel 2 can be removed from the longitudinal keel mounting bracket 1 simply by separating the connection between the male and female hook and loop fasteners. This is very convenient for repairing, replacing, or modifying the decorative panel 2, reducing the complexity and damage of disassembly. Due to the characteristics of the hook and loop fasteners, the decorative panel 2 can be adjusted and aligned relatively flexibly. By adjusting the position of the male and female hook and loop fasteners, the decorative panel 2 can be kept horizontal, vertical, or at a specific angle to the longitudinal keel mounting bracket 1, ensuring that the overall decorative effect meets expectations. Compared with traditional screw fixing or adhesive fixing methods, the connection between the male and female hook and loop fasteners can avoid forming holes or residual glue on the decorative panel 2, reducing the cost and difficulty of maintenance and repair.

[0059] As shown in Figure 7, the construction method for the above-mentioned building exterior wall renovation structure includes the following steps:

[0060] S1: Curing the wall surface;

[0061] First, a corrosion-resistant coating and a waterproof coating are sprayed onto the outer surface of the building's exterior wall, and a corrosion-resistant layer 5 and a waterproof layer 4 are formed on the building's exterior wall respectively, ultimately resulting in a cured wall.

[0062] S2: Launch baseline;

[0063] First, mark the longitudinal baseline on the outer surface of the hardened wall with an ink line according to the design drawing. The baseline should be marked on each connecting construction surface.

[0064] S3: Install longitudinal keel mounting bracket 1;

[0065] Based on the position of the baseline, the longitudinal keel mounting bracket 1 is installed on the cured wall surface by embedding expansion screws into the cured wall surface, and a filling area is formed between adjacent longitudinal keel mounting brackets 1.

[0066] S4: Lay fireproof netting 6;

[0067] The protective netting is installed by adhesive bonding, ensuring it abuts against the hardened wall surface and is positioned within the filling area.

[0068] S5: Install 8 serpentine pipes;

[0069] Align the serpentine pipe 8 with the protective net and position it between two adjacent reinforcing fibers 604. Then inject thermal expansion and cold contraction material into the interior of the serpentine pipe 8 to expand the interior of the serpentine pipe 8 and make the outer circle size of the serpentine pipe 8 smaller than the depth of the filling area.

[0070] S6: Fill with expanding thermal insulation adhesive;

[0071] In the filling area, an expanding thermal insulation adhesive in liquid or gel form is sprayed toward the outer surface of the serpentine pipe 8. The expanding thermal insulation adhesive in liquid or gel form quickly fills the gap between the vent 603 and the reinforcing fiber 604 and the serpentine pipe 8. After the expanding thermal insulation adhesive expands and cures, a lightweight thermal insulation block 3 is obtained.

[0072] S7: Install decorative panel 2;

[0073] By using the adhesive properties of the male and female hook and loop fasteners, the decorative panel 2 is quickly positioned on the outer surface of the lightweight insulation block 3. Then, the fastener 10 is used to fix the decorative panel 2 to the longitudinal keel mounting frame 1, thus obtaining the building exterior wall renovation structure.

[0074] By applying a hardened wall, a corrosion-resistant coating, and a waterproof coating, the wall's weather resistance is enhanced, enabling the building's exterior walls to withstand the erosion of wind and rain. The installation of longitudinal keel mounting frames 1 and the laying of fireproof netting 6 strengthens the wall's structural strength, improving its stability and wind resistance. The installation of fireproof netting 6 and the filling of expanding thermal insulation adhesive increase the fire resistance of the exterior walls, enhancing the building's overall safety. Furthermore, the filling of expanding thermal insulation adhesive and the installation of decorative panels 2 improve the exterior walls' thermal insulation performance, increasing the building's energy efficiency and reducing energy consumption. Additionally, the installation of decorative panels 2 provides a better aesthetic appearance, enhancing the building's overall beauty and increasing its market competitiveness. Therefore, this construction method improves the weather resistance, strength, fire resistance, and thermal insulation of the building's exterior walls, while also offering a good aesthetic effect, making it a comprehensive and effective method for renovating building exterior walls.

[0075] In S6, after the expanding insulation adhesive expands and cures, the cured expanding insulation adhesive is trimmed with a blade so that the trimmed surface of the cured expanding insulation adhesive is on the same plane as the longitudinal keel mounting frame 1.

[0076] After trimming the expanding insulation adhesive, the surface of the building's exterior wall becomes smoother, reducing unevenness and improving the overall aesthetics. Furthermore, the smooth surface of the trimmed expanding insulation adhesive allows for better adhesion of the decorative panel 2, resulting in a more beautiful and secure decorative effect. Moreover, the trimmed expanding insulation adhesive and the longitudinal keel mounting frame 1 are on the same plane, ensuring the stability and flatness of the decorative panel 2 and preventing deformation or detachment. In short, placing the cured expanding insulation adhesive trimmed surface on the same plane as the longitudinal keel mounting frame 1 improves the overall flatness, decorative effect, and installation quality of the building's exterior wall, facilitating subsequent maintenance.

[0077] Working principle: When carrying out the renovation of the building's exterior wall, firstly, a corrosion-resistant coating and a waterproof coating are sprayed on the outer surface of the building's exterior wall, and a corrosion-resistant layer 5 and a waterproof layer 4 are formed on the building's exterior wall respectively, finally obtaining a cured wall; then, according to the design drawings, the longitudinal baseline is marked on the outer surface of the cured wall with ink lines.

[0078] Based on the position of the baseline, the longitudinal keel mounting bracket 1 is installed on the cured wall surface using expansion screws embedded in the cured wall surface, forming a filling area between adjacent longitudinal keel mounting brackets 1; then, the protective net is attached to the cured wall surface using adhesive, and the protective net is laid and positioned within the filling area; then, the serpentine pipe 8 is aligned with the protective net and positioned between two adjacent reinforcing fibers 604, and then thermal expansion and contraction material is injected into the interior of the serpentine pipe 8 to expand the interior of the serpentine pipe 8, and the outer circle dimension of the serpentine pipe 8 is smaller than the depth of the filling area.

[0079] In the filling area, an expanding thermal insulation adhesive in liquid or gel form is sprayed onto the outer surface of the serpentine pipe 8. The expanding thermal insulation adhesive in liquid or gel form quickly fills the gaps between the vent holes 603 and the reinforcing fibers 604 and the serpentine pipe 8. After the expanding thermal insulation adhesive expands and cures, a lightweight thermal insulation block 3 is obtained.

[0080] Then, by using the adhesive action of the male and female hook and loop fasteners, the decorative panel 2 is quickly positioned on the outer surface of the lightweight insulation block 3. Then, using the fastener 10, the decorative panel 2 is fixed on the longitudinal keel mounting frame 1, and the building exterior wall renovation structure is obtained.

[0081] 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 building exterior wall renovation structure, comprising a longitudinal keel mounting frame (1) installed on the exterior wall of a building, characterized in that: Decorative panels (2) are installed on the longitudinal keel mounting frame (1). Several longitudinal keel mounting frames (1) are evenly spaced along the outer wall of the building. A filling area is formed between adjacent longitudinal keel mounting frames (1), the outer surface of the building's outer wall, and the inner surface of the decorative panels (2). The filling area of ​​the building's outer wall is filled with expanding thermal insulation adhesive. After the expanding thermal insulation adhesive cures, it forms a lightweight thermal insulation block (3) inside the filling area. The filling area of ​​the building's outer wall is provided with anti-corrosion... Fireproof net (6), the fireproof net (6) is located inside the expanding thermal insulation adhesive; the fireproof net (6) includes a plurality of transverse flame-retardant fibers (601) and longitudinal flame-retardant fibers (602), the plurality of transverse flame-retardant fibers (601) and longitudinal flame-retardant fibers (602) are interwoven in pairs to form a mesh structure, and form a breathable hole (603) with a rectangular cross-section; reinforcing fibers (604) are provided at the intersection of the transverse flame-retardant fibers (601) and longitudinal flame-retardant fibers (602). One end of the reinforcing fiber (604) is connected to the intersection of the transverse flame-retardant fiber (601) and the longitudinal flame-retardant fiber (602), and the other end of the reinforcing fiber (604) is provided with an enlarged head (605); the interior of the lightweight insulation block (3) is provided with a serpentine channel (7), and the interior of the serpentine channel (7) is provided with a serpentine pipe (8). The internal diameter of the serpentine pipe (8) can be changed, and the interior of the serpentine pipe (8) is filled with a thermal expansion and contraction material; the mounting The decorative panel (2) is provided with a locking fastener (10) that matches the longitudinal keel mounting bracket (1). The decorative panel (2) is fixed to the longitudinal keel mounting bracket (1) by the locking fastener (10). The inner side of the longitudinal keel mounting bracket (1) is provided with a first limiting strip (11), and the inner surface of the decorative panel (2) is provided with a second limiting strip (12). The first limiting strip (11) is provided with a sub-hook and loop fastener, and the second limiting strip (12) is provided with a female hook and loop fastener that matches the sub-hook and loop fastener.

2. The building exterior wall renovation structure according to claim 1, characterized in that: The outer surface of the building's exterior wall is provided with a waterproof layer (4), and a corrosion-resistant layer (5) is provided between the waterproof layer (4) and the building's exterior wall.

3. A construction method for a building exterior wall renovation structure as described in any one of claims 1-2, characterized in that: The construction steps include: S1: Curing the wall surface; First, spray a corrosion-resistant coating and a waterproof coating on the outer surface of the building exterior wall, and form a corrosion-resistant layer (5) and a waterproof layer (4) on the building exterior wall respectively, and finally obtain a cured wall; S2: Marking the baseline; First, mark the longitudinal baseline on the cured wall with ink lines according to the design drawings, and mark the lines on each connecting construction surface; S3: Installing the longitudinal keel mounting frame (1); According to the position of the baseline, use expansion screws to embed into the cured wall surface to install the longitudinal keel mounting frame (1) on the cured wall surface, and form a filling area between adjacent longitudinal keel mounting frames (1); S4: Laying the fireproof net (6); Use adhesive to hang the net so that the protective net abuts against the cured wall surface, and lay and position the protective net in the filling area; S5: Installing the serpentine pipe (8); Align the serpentine pipe (8) with the protective net and position it in the corresponding area. Between two adjacent reinforcing fibers (604), a thermal expansion and contraction material is injected into the interior of the serpentine pipe (8) to expand the interior of the serpentine pipe (8) and make the outer circle size of the serpentine pipe (8) smaller than the depth of the filling area; S6: Fill with expanding thermal insulation adhesive; spray liquid or gel-like expanding thermal insulation adhesive into the filling area and onto the outer surface of the serpentine pipe (8). The liquid or gel-like expanding thermal insulation adhesive quickly fills the gap between the vent (603) and the reinforcing fiber (604) and the serpentine pipe (8). After the expanding thermal insulation adhesive expands and cures, a lightweight thermal insulation block (3) is obtained; S7: Install decorative panel (2); using the adhesive action of the male and female hook and loop fasteners, the decorative panel (2) is quickly positioned on the outer surface of the lightweight thermal insulation block (3). Then, using the fastener (10), the decorative panel (2) is fixed on the longitudinal keel mounting frame (1) to obtain the building exterior wall renovation structure.

4. The construction method for the building exterior wall renovation structure according to claim 3, characterized in that: In S6, after the expanding thermal insulation adhesive expands and cures, the cured expanding thermal insulation adhesive is trimmed with a blade so that the trimmed surface of the cured expanding thermal insulation adhesive is on the same plane as the longitudinal keel mounting frame (1).

Images