Fabricated wall structure for indoor decoration and assembly method

Abstract

The invention discloses an assembly type wall structure for indoor decoration and an assembly method, and relates to the technical field of assembly type wall bodies, the assembly type wall structure comprises a foundation frame assembly, a functional panel assembly and a connection locking assembly, and the foundation frame assembly comprises a vertical keel and a transverse truss; the functional panel assembly comprises a calcium silicate-based panel; the connecting and locking assembly comprises a bidirectional buckling piece and a self-resetting spring pin; the method further comprises the steps of S1, construction preparation, S2, foundation frame building, S3, functional panel pre-installation, S4, connection locking operation, S5, wall correction and fine adjustment, S6, gap treatment and sealing and S7, acceptance and cleaning. Through the foundation frame assembly, the functional panel assembly, the connection locking assembly and the steps S1-S7, the problem that a traditional assembly type wall body connection structure is prone to loosening and deformation is effectively solved, the functional panel and the foundation frame are tightly connected, and it is ensured that the structure of the wall body is kept stable in the long-term use process; and fine adjustment can be conducted in the mounting process, and the mounting efficiency and precision of the fabricated wall are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated walls, and in particular to a prefabricated wall structure and an assembly method for interior decoration. Background Art

[0002] In the field of interior decoration, traditional prefabricated walls mainly adopt a structure of light steel keels with paper-faced gypsum boards. The light steel keels are spliced by simple connectors, and the paper-faced gypsum boards are fixed on the keels with self-tapping screws. This method can meet the indoor partition requirements to a certain extent and has construction convenience; however, there are many problems. The connection method depends on connectors such as screws and rivets. Although self-tapping screws can fix the panel and the keel, they are prone to loosening under the influence of wall vibration, temperature change, etc., resulting in a decrease in connection stability; in terms of the construction process, the pipeline embedding and wall assembly processes are relatively independent. The pipelines are laid first and then the walls are installed. Due to the lack of accurate positioning and coordination mechanism, the installed walls are likely to squeeze and damage the laid pipelines during wall installation, affecting their normal use; in addition, there is no unified standard for the interfaces between different systems such as electrical and water supply and drainage systems and the wall structure, and situations such as size mismatch and installation position conflict often occur. During construction, repeated adjustments are required, which greatly reduces the construction efficiency, increases the construction cost and time cost, and may also bring potential safety hazards due to pipeline damage, making it difficult to meet the requirements of modern interior decoration for high efficiency, safety and high quality.

[0003] At the same time, the connection methods of screws and rivets are difficult to resist the influence of complex environments such as vibration and temperature change, and are prone to loosening and deformation, unable to ensure the long-term firmness of the wall; when multiple systems are integrated, due to the lack of a unified standard for interfaces, the interfaces between electrical, water supply and drainage and other systems and the wall are often mismatched, greatly increasing the installation difficulty and significantly reducing the installation efficiency, resulting in a lengthened construction period and a significant increase in decoration cost; in terms of the construction process, the existing technology lacks sufficient planning and coordination for the pipeline embedding and wall assembly processes. During wall installation, the pre-laid pipelines are extremely easy to be damaged, which may cause problems such as rupture and short circuit, not only reducing the decoration quality, but also leaving potential safety hazards, and the later maintenance cost is high and the difficulty is great; in addition, the existing technology is difficult to achieve precise construction, and the flatness and perpendicularity of the wall cannot be effectively guaranteed, seriously affecting the overall effect of interior decoration, reducing the user experience, and making it difficult to meet the comprehensive requirements of modern decoration in terms of quality, efficiency and safety. It is necessary to design a prefabricated wall structure and an assembly method for interior decoration to solve the above-mentioned problems. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages existing in the prior art, and to propose a prefabricated wall structure and an assembly method for interior decoration to solve the problems in the above technical solutions.

[0005] To achieve the above object, the present invention is realized through the following technical solutions: An assembled wall structure for interior decoration, comprising a basic frame assembly, a functional panel assembly, and a connection and locking assembly. The basic frame assembly includes vertical keels and horizontal trusses. The upper and lower ends of the vertical keels are fixed to the building structure layer through expansion bolts. The horizontal trusses are connected to the vertical keels through flange nuts. Guide grooves are provided on the front sides of the vertical keels; The functional panel assembly includes calcium silicate-based panels. Aluminum alloy frames are embedded at the four sides of the calcium silicate-based panels. Oblique sockets are provided on the vertical aluminum alloy frames. The calcium silicate-based panels are engaged with the guide grooves through the oblique sockets; The connection and locking assembly includes a two-way buckle and a self-resetting spring pin. Two-way buckles are provided at the upper and lower ends on the outer sides of the vertical keels. The self-resetting spring pin is arranged at the bottom of the guide groove. Interlocking buckles are provided at the bottoms of the vertical aluminum alloy frames. The interlocking buckles are mechanically interlocked with the self-resetting spring pins.

[0006] An assembly method for an assembled wall structure for interior decoration, applied to an assembled wall structure for interior decoration, includes the following steps: S1. Construction preparation: Measure and lay out the building structure layer at the construction site according to the design drawings, and determine the accurate installation positions of the vertical keels; At the same time, prepare the required installation tools and construction materials, and conduct quality inspections on the construction materials to ensure no defects such as damage and deformation. The thickness deviation of the calcium silicate-based panels is ±1 mm, and the straightness error of the vertical keels is ≤1 mm per meter; S2. Basic frame construction: Drill holes in the building structure layer according to the layout positions. At the same time, the drilling depth is determined according to the specifications of the expansion bolts. Then install the expansion bolts in the holes and tighten them to ensure that the anchoring force of the expansion bolts > 80% of the design requirements; Fix the upper and lower ends of the vertical keels to the expansion bolts respectively. At the same time, use a level and a plumb line to calibrate the verticality of the vertical keels, so that the verticality deviation ≤±2 mm; Secondly, connect the horizontal trusses to the vertical keels through flange nuts and install them according to the designed spacing. The tightening torque of the flange nuts should reach 30-40 N*m; S3. Pre-installation of functional panels: Check the aluminum alloy frames embedded at the four sides of the calcium silicate-based panels to ensure that the oblique sockets are not deformed or damaged. Then lift the calcium silicate-based panels so that the oblique sockets on the vertical aluminum alloy frames are aligned with the guide grooves on the front sides of the vertical keels and slowly insert them to make the oblique sockets and the guide grooves initially cooperate; During the insertion process, maintain the levelness of the calcium silicate-based panels and measure with a level. The levelness deviation is controlled within ±2 mm to initially fix the functional panel assembly; S4, connection locking operation: press the self-resetting spring pin downward, and accurately align the interlocking buckle at the bottom of the vertical aluminum alloy frame with the self-resetting spring pin, release the self-resetting spring pin, and make it mechanically interlocked with the interlocking buckle to provide vertical locking force; At the same time, the two-way clips are opened to both sides to buckle the outer side of the vertical aluminum alloy frame, and the elasticity of the two-way clips is automatically rebounded to achieve the horizontal locking of the calcium silicate-based panel, ensuring that the functional panel components are tightly connected to the basic frame; S5. Wall calibration and fine-tuning: Use a laser rangefinder and a level to conduct a comprehensive inspection of the installed wall to check the flatness, verticality and horizontality of the wall; If the flatness deviation of the wall exceeds ±2mm, the verticality deviation exceeds ±2mm, or the horizontality deviation exceeds ±3mm, it should be corrected by adjusting the position of the vertical keel or making local fine adjustments to the functional panel components; After the adjustment is completed, test again until all indicators meet the requirements to ensure the installation accuracy of the wall; S6. Gap treatment and sealing: Check the gap between the calcium silicate-based panel and the basic frame assembly. For gaps with a width of 2-5 mm, use sealant to fill and seal. At the same time, ensure that the sealant is full and even during filling, and the surface is flat and smooth; For gaps with a width of less than 2mm, use putty to fill them. After filling, grind them smooth after they are dry so that the gaps do not affect the appearance and use function of the wall. S7, Acceptance and cleaning: Conduct a comprehensive acceptance of the prefabricated wall, check the firmness of the basic frame components, the installation quality of the functional panel components, the reliability of the connection and locking components, and the overall appearance of the wall; Use a torque wrench to check the tightness of the flange nuts, and use a ruler to check the flatness of the functional panel; After acceptance, clean up the construction site, remove the waste, dust and debris generated during the construction process, and keep the construction site clean and tidy.

[0007] Furthermore, in the S1 construction preparation step, the humidity and temperature of the construction site are monitored. When the humidity of the construction site exceeds 85% or the temperature is below 5°C, dehumidification or heating measures such as using a dehumidifier to reduce humidity and an electric heater to increase temperature should be used to ensure that the construction environment meets the material installation requirements and avoid affecting material performance and installation quality.

[0008] Furthermore, in the S2 basic frame construction step, when installing the vertical keels, the spacing deviation between two adjacent vertical keels should be controlled within ±3mm; After the installation is completed, the straightness of the vertical keel is checked by the wire pulling method. The straightness error shall not exceed 2mm within every 2m length to ensure the dimensional accuracy of the basic frame and provide a good foundation for the subsequent installation of functional panels.

[0009] Furthermore, in the S3 functional panel pre-installation step, before the calcium silicate-based panel is inserted into the guide groove, a layer of silicone-based lubricant is applied in the guide groove. The thickness of the lubricant is 0.1-0.2 mm, evenly covering the surface of the guide groove to reduce friction during panel insertion and avoid damage to the aluminum alloy frame and the guide groove.

[0010] Furthermore, in the S4 connection locking operation step, the self-resetting spring pin is made of stainless steel, and the surface is treated with rust prevention, and the rust prevention grade is ≥ ISO 12944-C5 grade; The elastic coefficient of the self-resetting spring pin should ensure that after the interlocking buckle and the self-resetting spring pin are interlocked, it can withstand a vertical tensile force of ≥500N without loosening, thereby ensuring the reliability of the vertical connection of the functional panel.

[0011] Furthermore, in the S6 gap processing and sealing step, after the sealant is filled, a layer of UV protection film is covered on the surface of the sealant; the thickness of the protective film is 0.05-0.1mm, and the width is 10-15mm wider than the sealant seam to prevent the sealant from aging due to long-term exposure to sunlight, extend the service life of the sealant, and maintain the sealing performance of the wall.

[0012] Furthermore, in the S7 acceptance and cleaning step, in addition to inspecting the appearance and dimensions of the wall, the sound insulation performance of the wall must also be tested using professional sound insulation testing equipment and tested in accordance with relevant standards, requiring the wall's sound insulation volume to be no less than 40dB (A). If the sound insulation performance does not meet the standard, analyze the reasons and take corresponding improvement measures, such as adding sound insulation materials or adjusting the wall structure until it meets the requirements.

[0013] In summary, the present invention provides an assembled wall structure and an assembly method for interior decoration, which have the following beneficial effects: 1. Through the synergistic effect of vertical keels, transverse trusses, two-way clips, self-resetting spring pins and interlocking buckles, the stability of the wall structure is enhanced; the vertical keels and transverse trusses form a stable basic frame, and the two-way clips and self-resetting spring pins cooperate closely with the interlocking buckles in the horizontal and vertical directions respectively, which effectively solves the problem of easy loosening and deformation of the traditional prefabricated wall connection structure, and makes the functional panel and the basic frame closely connected, ensuring that the wall can withstand various external forces during long-term use and maintain structural stability.

[0014] 2. Through the linkage of the calcium silicate-based panel, aluminum alloy frame, guide groove, and inclined socket, the installation convenience and accuracy are improved; the aluminum alloy frame is embedded at the four sides of the calcium silicate-based panel, and its inclined socket is precisely engaged with the guide groove of the vertical keel. During installation, it can be quickly positioned, and fine-tuning can be carried out according to the guide groove during the installation process, effectively solving the problem of low installation efficiency caused by mismatched interfaces during multi-system integration, and greatly improving the installation efficiency and accuracy of the prefabricated wall.

[0015] 3. Through the steps of S1 construction preparation, S2 basic frame construction, and S3 pre-installation of functional panels, the construction process is optimized and structural damage is avoided; accurate measurement and setting out and quality inspection in S1 provide accurate data and qualified materials for subsequent construction; S2 standardizes the construction of the basic frame to ensure the dimensional accuracy of the frame; S3 checks the components and precisely positions them preliminarily before pre-installation. These steps are closely coordinated, effectively avoiding the problem of structural damage caused by the conflict between pipeline embedding and wall assembly processes, ensuring the integrity and stability of the wall structure, optimizing the construction process, and improving the construction quality.

[0016] 4. Through the steps of S5 wall alignment and fine-tuning, S6 gap treatment and sealing, and S7 acceptance and cleaning, the wall quality and service performance are improved; S5 uses professional tools to detect and correct wall deviations to ensure the installation accuracy of the wall; S6 seals the gaps to prevent dust and moisture from entering and enhances the wall tightness; S7 comprehensively accepts the various performances of the wall, cleans the construction site, and simultaneously detects the sound insulation performance and improves the unqualified parts. These steps improve the overall quality of the wall and meet the user's various usage requirements for the wall, such as aesthetics, sealing, and sound insulation. Description of the Drawings

[0017] Figure 1 It is a schematic flow chart of the structure and assembly method of a prefabricated wall for interior decoration according to the present invention. Detailed Embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment: Please refer to Figure 1As shown in the figure, the present invention provides a technical solution: a prefabricated wall structure for interior decoration, including a basic frame assembly, a functional panel assembly, and a connection and locking assembly. The basic frame assembly includes vertical keels and horizontal trusses. The upper and lower ends of the vertical keels are fixed to the building structure layer through expansion bolts, ensuring the stability of the connection between the wall and the building main body and enabling it to bear the weight of the wall itself and possible external forces. The horizontal trusses are connected to the vertical keels through flange nuts, which is convenient, fast, and firmly connected, constructing a stable frame system and providing a reliable foundation for the installation of functional panels. Guide grooves are provided on the front sides of the vertical keels to provide precise guidance for the installation of functional panels, improving the installation efficiency and accuracy. The functional panel assembly includes calcium silicate-based panels. Aluminum alloy frames are embedded at the four sides of the calcium silicate-based panels. Oblique sockets are provided on the vertical aluminum alloy frames. The calcium silicate-based panels are engaged with the guide grooves through the oblique sockets, enhancing the strength and durability of the panel edges. At the same time, the engagement method between the oblique sockets and the guide grooves realizes the tight combination of the functional panels and the basic frame assembly, improving the integrity of the wall structure. Moreover, this connection method is convenient for installation and reduces the installation difficulty. The connection and locking assembly includes bidirectional fasteners and self-resetting spring pins. Bidirectional fasteners are provided at the upper and lower ends on the outer sides of the vertical keels. The self-resetting spring pins are arranged at the bottom of the guide grooves. Interlocking buckles are provided at the bottoms of the vertical aluminum alloy frames. The interlocking buckles are mechanically interlocked with the self-resetting spring pins. The bidirectional fasteners can lock the functional panels horizontally. Utilizing its elastic automatic rebound characteristic, it ensures the tight connection between the functional panels and the basic frame and prevents lateral displacement. The mechanical interlock between the self-resetting spring pins and the interlocking buckles provides vertical locking force to ensure the stability of the functional panels in the vertical direction. The two work together to greatly enhance the stability and reliability of the wall structure.

[0020] An assembly method for a prefabricated wall structure for interior decoration, which is applied to a prefabricated wall structure for interior decoration, includes the following steps: S1. Construction preparation: Measure and set out the building structure layer at the construction site according to the design drawings, and determine the accurate installation positions of the vertical keels. Determining the installation positions of the vertical keels through precise measurement and setting out can ensure the position accuracy of the wall installation, meet the design requirements, and lay a foundation for the smooth progress of subsequent installation work. At the same time, prepare the required installation tools and construction materials, and conduct quality inspections on the construction materials to ensure that there are no defects such as damage and deformation. The thickness deviation of the calcium silicate-based panels is ±1 mm, and the straightness error of the vertical keels is ≤1 mm per meter. Conducting strict quality inspections on the construction materials ensures the material quality. Calcium silicate-based panels and vertical keels that meet the accuracy requirements contribute to improving the overall installation quality and aesthetics of the wall and reducing rework caused by material problems. S2. Foundation framework construction: Drill holes in the building structure layer according to the layout position, and determine the drilling depth according to the specification of the expansion bolts at the same time. Then install the expansion bolts in the holes and tighten them to ensure that the anchoring force of the expansion bolts > 80% of the design requirement. Determining the drilling depth according to the specification of the expansion bolts and ensuring the anchoring force can firmly anchor the expansion bolts in the building structure layer, thus ensuring the stability of the connection between the vertical keel and the building structure layer and guaranteeing the safety of the overall wall structure; Fix the upper and lower ends of the vertical keel to the expansion bolts respectively, and use a level and a plumb line to calibrate the perpendicularity of the vertical keel, so that the perpendicularity deviation ≤ ±2 mm. Calibrating the perpendicularity of the vertical keel with a level and a plumb line can ensure the vertical installation of the vertical keel, with the deviation controlled within a very small range, which is beneficial to the installation of subsequent functional panels and can ensure the overall vertical flatness of the wall, improving the aesthetics and service performance; Secondly, connect the horizontal truss to the vertical keel through flange nuts and install it according to the designed spacing. The tightening torque of the flange nuts should reach 30 - 40 N*m. Installing the horizontal truss according to the designed spacing and reaching the specified tightening torque can form a stable overall structure of the foundation framework assembly, ensuring the strength and stability of the framework and meeting the load-bearing requirements of the wall; S3. Pre-installation of functional panels: Check the aluminum alloy frames embedded on the four sides of the calcium silicate-based panel to ensure that the inclined sockets are not deformed or damaged. Then lift the calcium silicate-based panel so that the inclined sockets on the vertical aluminum alloy frame are aligned with the guiding grooves on the front side of the vertical keel and slowly insert it to make the inclined sockets and the guiding grooves fit preliminarily. Checking the aluminum alloy frame and the inclined sockets before installation can avoid affecting the installation due to component damage; The preliminary fit between the inclined sockets and the guiding grooves provides a basis for subsequent precise installation and locking, and preliminarily determines the installation position of the functional panel; During the insertion process, maintain the levelness of the calcium silicate-based panel and measure it with a spirit level, with the levelness deviation controlled within ±2 mm. Preliminarily fix the functional panel assembly. Controlling the levelness of the calcium silicate-based panel during the insertion process can ensure the horizontal state of the functional panel installation, with the deviation controlled within the specified range, which helps to improve the overall flatness and aesthetics of the wall. At the same time, preliminarily fixing the functional panel assembly facilitates subsequent connection and locking operations; S4. Connection and locking operation: Press down the self-resetting spring pin and accurately dock the interlocking buckle at the bottom of the vertical aluminum alloy frame with the self-resetting spring pin. Release the self-resetting spring pin to make it mechanically interlock with the interlocking buckle, providing a vertical locking force. The accurate docking and mechanical interlocking of the self-resetting spring pin and the interlocking buckle reliably provide a vertical locking force, preventing the functional panel from displacing in the vertical direction and ensuring the stability of the vertical connection between the functional panel and the foundation framework assembly; At the same time, the two-way clips are opened to both sides, buckled on the outside of the vertical aluminum alloy frame, and the elasticity of the two-way clips is automatically rebounded to achieve lateral locking of the calcium silicate-based panel, ensuring that the functional panel assembly is tightly connected to the basic frame. The two-way clips use their elasticity to automatically rebound and buckle on the outside of the vertical aluminum alloy frame to achieve lateral locking of the calcium silicate-based panel, further enhancing the connection strength between the functional panel and the basic frame, preventing lateral shaking or displacement, and improving the stability of the wall structure; S5. Wall calibration and fine-tuning: Use laser rangefinder and level to conduct comprehensive inspection of the installed wall, check the flatness, verticality and horizontality of the wall, and use professional inspection tools to comprehensively inspect the flatness, verticality and horizontality of the wall, which can accurately find the deviation problems in the wall installation process and provide a basis for subsequent calibration and fine-tuning; If the flatness deviation of the wall exceeds ±2mm, the verticality deviation exceeds ±2mm, or the horizontality deviation exceeds ±3mm, it can be corrected by adjusting the position of the vertical keel or making local fine adjustments to the functional panel components. For walls that exceed the allowable deviation, adjusting the position of the vertical keel or making local fine adjustments to the functional panel components can effectively correct the wall deviation, make the various indicators of the wall meet the installation requirements, and improve the installation quality and performance of the wall; After the adjustment is completed, test again until all indicators meet the requirements to ensure the installation accuracy of the wall. Test multiple times until the indicators meet the requirements to ensure that the wall installation accuracy reaches a high standard, meet the strict requirements of building decoration on wall quality, and improve user satisfaction; S6. Gap treatment and sealing: Check the gap between the calcium silicate-based panel and the basic frame assembly. For gaps with a width of 2-5mm, use sealant to fill and seal. At the same time, ensure that the sealant is full and even when filling, and the surface is flat and smooth. Use sealant to fill and seal gaps within a certain width range, which can effectively prevent dust, moisture, etc. from entering the wall, while ensuring the aesthetic appearance of the wall, and improving the sealing and overall performance of the wall; For gaps with a width of less than 2mm, use putty to fill them. After filling, grind them flat after they are dry so that the gaps do not affect the appearance and use function of the wall. For narrow gaps, fill them with putty and grind them flat to make the wall surface flat and smooth, which not only ensures the appearance of the wall, but also does not affect its use function, and improves the overall quality of the wall; S7. Acceptance and cleaning: Conduct a comprehensive acceptance of the prefabricated wall, check the firmness of the basic frame components, the installation quality of the functional panel components, the reliability of the connection and locking components, and the overall appearance of the wall. The comprehensive acceptance can comprehensively evaluate the various performance and quality of the prefabricated wall, ensure that the wall meets the requirements in terms of structure, installation and appearance, and ensure the safety and beauty of the wall; Use a torque wrench to check the tightening degree of the flange nuts, use a straightedge to check the flatness of the function panel. By using professional tools to check the tightening degree of the flange nuts and the flatness of the function panel, it is possible to more accurately judge whether the installation quality meets the standards, ensure the firm connection of the basic framework and the flatness of the function panel, and improve the overall quality of the wall. After passing the acceptance inspection, clean the construction site, remove the waste materials, dust and sundries generated during the construction process, and keep the construction site clean. Cleaning the construction site can create a good working environment, meet the requirements of civilized construction, and at the same time avoid the adverse effects of waste materials, dust and sundries on subsequent construction or use.

[0021] In step S1 of construction preparation, monitor the humidity and temperature of the construction site. When the humidity of the construction site exceeds 85% or the temperature is lower than 5°C, dehumidifying or warming measures such as using a dehumidifier to reduce humidity and an electric heater to raise the temperature should be taken to ensure that the construction environment meets the installation requirements of the materials, avoid affecting the material performance and installation quality. Monitoring and regulating the temperature and humidity of the construction site to create a suitable environment for material installation can effectively avoid the change of material performance caused by environmental factors, thus ensuring the wall installation quality and the service life of the materials.

[0022] In step S2 of basic framework construction, when installing vertical keels, the spacing deviation between adjacent two vertical keels should be controlled within ±3mm. Strictly control the spacing deviation of adjacent vertical keels to ensure the dimensional accuracy of the basic framework, provide an accurate installation space for the installation of the function panel, make the installation of the function panel more fitting, and improve the integrity and aesthetics of the wall structure. After installation, use the wire-pulling method to check the straightness of the vertical keels. The straightness error should not exceed 2mm within every 2m length to ensure the dimensional accuracy of the basic framework and provide a good foundation for the subsequent installation of the function panel. By using the wire-pulling method to check the straightness of the vertical keels, ensure that the vertical keels are straight in the length direction, provide a flat and straight installation reference for the installation of the function panel, which is beneficial to improving the installation quality of the function panel and the overall appearance effect of the wall.

[0023] In step S3 of function panel pre-installation, before inserting the calcium silicate-based panel into the guide groove, apply a layer of silicon-based lubricant in the guide groove. The coating thickness of the lubricant is 0.1 - 0.2mm, evenly covering the surface of the guide groove to reduce the friction when the panel is inserted, and at the same time avoid damaging the aluminum alloy frame and the guide groove. Applying silicon-based lubricant in the guide groove can effectively reduce the friction when the panel is inserted, make the installation process smoother, and at the same time avoid damage to the aluminum alloy frame and the guide groove caused by friction, improve the service life of the components, and ensure the installation quality.

[0024] In the S4 connection locking operation steps, the self - resetting spring pin is made of stainless steel, and at the same time, the surface is treated with rust prevention. The rust prevention grade is ≥ ISO 12944 - C5 grade. The self - resetting spring pin made of stainless steel and treated with high - grade rust prevention can effectively improve its rust prevention performance, extend its service life, ensure that the vertical locking function can be reliably exerted in various environments, and enhance the long - term stability of the wall structure; The elastic coefficient of the self - resetting spring pin should ensure that after the interlocking buckle and the self - resetting spring pin are interlocked, it can withstand a vertical tensile force of ≥ 500N without loosening, ensuring the reliability of the vertical connection of the functional panel. Stipulating the elastic coefficient of the self - resetting spring pin and its ability to withstand vertical tensile force can ensure that during actual use, even if the wall bears a certain vertical external force, the vertical connection between the functional panel and the basic frame is still reliable and will not loosen, guaranteeing the safety of the wall structure.

[0025] In the S6 gap treatment and sealing steps, after the sealant is filled, a layer of anti - ultraviolet protective film is covered on the surface of the sealant; the thickness of the protective film is 0.05 - 0.1mm, and the width is 10 - 15mm wider than the sealant joint, so as to prevent the sealant from aging due to long - term exposure to sunlight, extend the service life of the sealant, and maintain the sealing performance of the wall. Covering an anti - ultraviolet protective film on the surface of the sealant can effectively prevent the sealant from aging due to long - term ultraviolet irradiation, thereby extending the service life of the sealant, continuously maintaining the good sealing performance of the wall, and reducing the later maintenance cost.

[0026] In the S7 acceptance and cleaning steps, during acceptance, in addition to checking the appearance and dimensions of the wall, it is also necessary to detect the sound insulation performance of the wall. Use professional sound insulation detection equipment and conduct detection in accordance with relevant standards. It is required that the sound insulation volume of the wall is not less than 40dB(A). If the sound insulation performance does not meet the standard, analyze the reasons and take corresponding improvement measures, such as adding sound insulation materials or adjusting the wall structure until it meets the requirements. Detecting and ensuring that the sound insulation performance of the wall meets the standard can meet the requirements of the indoor space for sound insulation effect, provide a quiet and comfortable environment for users, and if it does not meet the standard, improve it in time to ensure the functionality and use experience of the wall.

[0027] The above - mentioned is only the preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above - mentioned embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. An assembled wall structure for interior decoration, comprising a basic frame assembly, a functional panel assembly and a connection and locking assembly, characterized in that: The basic frame assembly includes a vertical keel and a transverse truss, the upper and lower ends of the vertical keel are fixed to the building structure layer by expansion bolts, the transverse truss is connected to the vertical keel by flange nuts, and the front side of the vertical keel is provided with a guide groove; The functional panel assembly includes a calcium silicate-based panel, and aluminum alloy frames are pre-buried on the four sides of the calcium silicate-based panel. The vertical aluminum alloy frames are provided with oblique sockets, and the calcium silicate-based panel is engaged with the guide groove through the oblique sockets; The connection locking assembly includes a two-way snap fastener and a self-resetting spring pin. The upper and lower ends of the outer side of the vertical keel are provided with a two-way snap fastener. The self-resetting spring pin is arranged at the bottom of the guide groove. The bottom of the vertical aluminum alloy frame is provided with an interlocking buckle, and the interlocking buckle is mechanically interlocked with the self-resetting spring pin.

2. An assembly method for an assembled wall structure for interior decoration, applied to the assembled wall structure for interior decoration described in claim 1, characterized in that: The following steps are involved: S1. Construction preparation: Measure and lay out the building structure layer according to the design drawings at the construction site, and determine the exact installation position of the vertical keel; At the same time, prepare the required installation tools and construction materials, and conduct quality inspection on the construction materials to ensure that there are no defects such as damage and deformation. The thickness deviation of the calcium silicate-based panel is ±1mm, and the linear error of the vertical keel is ≤1mm per meter; S2. Foundation frame construction: Drill holes on the building structure layer according to the layout position. The drilling depth is determined according to the expansion bolt specifications. Then install the expansion bolts in the holes and tighten them to ensure that the anchoring force of the expansion bolts is greater than 80% of the design requirements. Fix the upper and lower ends of the vertical keel with expansion bolts respectively, and use a level and plumb line to calibrate the verticality of the vertical keel to make the verticality deviation ≤±2mm; Secondly, connect the transverse truss to the vertical keel through flange nuts and install them according to the designed spacing. The tightening torque of the flange nuts should reach 30-40N*m; S3. Pre-installation of functional panels: Check the aluminum alloy frames embedded on the four sides of the calcium silicate-based panel to ensure that the oblique sockets are not deformed or damaged. Then lift the calcium silicate-based panel, align the oblique sockets on the vertical aluminum alloy frames with the guide grooves on the front side of the vertical keel, and slowly insert them to make the oblique sockets and the guide grooves initially match. During the insertion process, the calcium silicate-based panel is kept level and measured with a level ruler. The level deviation is controlled within ±2mm, and the functional panel assembly is initially fixed; S4, connection locking operation: press the self-resetting spring pin downward, and accurately align the interlocking buckle at the bottom of the vertical aluminum alloy frame with the self-resetting spring pin, release the self-resetting spring pin, and make it mechanically interlocked with the interlocking buckle to provide vertical locking force; At the same time, the two-way clips are opened to both sides to buckle the outer side of the vertical aluminum alloy frame, and the elasticity of the two-way clips is automatically rebounded to achieve the horizontal locking of the calcium silicate-based panel, ensuring that the functional panel components are tightly connected to the basic frame; S5. Wall calibration and fine-tuning: Use a laser rangefinder and a level to conduct a comprehensive inspection of the installed wall to check the flatness, verticality and horizontality of the wall; If the deviation of the wall flatness exceeds ±2 mm, the deviation of the verticality exceeds ±2 mm, or the deviation of the levelness exceeds ±3 mm, it shall be corrected by adjusting the position of the vertical keel or making local fine-tuning to the functional panel assembly; After the adjustment is completed, it shall be detected again until all indicators meet the requirements to ensure the installation accuracy of the wall; S6. Gap treatment and sealing: Check the gap between the calcium silicate-based panel and the basic frame assembly. For gaps with a width of 2 - 5 mm, use sealant to fill and seal. At the same time, ensure that the sealant is full, uniform, and the surface is flat and smooth during filling; For gaps with a width less than 2 mm, use putty to fill. After filling and drying, sand it flat so that the gap does not affect the aesthetics and use function of the wall; S7. Acceptance and cleaning: Conduct a comprehensive acceptance of the prefabricated wall, check the firmness of the basic frame assembly, the installation quality of the functional panel assembly, the reliability of the connection and locking assembly, and the overall appearance effect of the wall; And use a torque wrench to check the tightening degree of the flange nut, and use a straightedge to check the flatness of the functional panel; After passing the acceptance, clean the construction site, remove the waste materials, dust and sundries generated during the construction process, and keep the construction site clean.

3. The prefabricated wall structure and assembly method for interior decoration according to claim 2, characterized in that: In the S1 construction preparation step, monitor the humidity and temperature of the construction site. When the humidity of the construction site exceeds 85% or the temperature is lower than 5 °C, dehumidification or temperature increase measures such as using a dehumidifier to reduce the humidity and an electric heater to increase the temperature shall be taken to ensure that the construction environment meets the installation requirements of the materials and avoid affecting the material performance and installation quality.

4. The prefabricated wall structure and assembly method for interior decoration according to claim 2, characterized in that: In the S2 basic frame construction step, when installing the vertical keel, the spacing deviation between adjacent two vertical keels shall be controlled within ±3 mm; After the installation is completed, use the wire-pulling method to check the straightness of the vertical keel. The straightness error does not exceed 2 mm within every 2 m length to ensure the dimensional accuracy of the basic frame and provide a good foundation for the subsequent installation of the functional panel.

5. The prefabricated wall structure and assembly method for interior decoration according to claim 2, characterized in that: In the S3 functional panel pre-installation step, before inserting the calcium silicate-based panel into the guide groove, apply a layer of silicon-based lubricant in the guide groove. The coating thickness of the lubricant is 0.1 - 0.2 mm, evenly covering the surface of the guide groove to reduce the friction when the panel is inserted and avoid damaging the aluminum alloy frame and the guide groove at the same time.

6. The prefabricated wall structure and assembly method for interior decoration according to claim 2, characterized in that: In the S4 connection and locking operation step, the self-resetting spring pin is made of stainless steel material, and at the same time, anti-rust treatment is carried out on the surface, and the anti-rust grade ≥ ISO 12944-C5 grade; The elastic coefficient of the self-resetting spring pin shall ensure that after the interlocking buckle and the self-resetting spring pin are interlocked, it can withstand a vertical tensile force of ≥500 N without loosening, ensuring the reliability of the vertical connection of the functional panel.

7. An assembled wall structure and assembly method for interior decoration according to claim 2, characterized in that: In the S6 gap treatment and sealing step, after the sealant filling is completed, cover a layer of ultraviolet protection film on the surface of the sealant; the thickness of the protection film is 0.05 - 0.1 mm, and the width is 10 - 15 mm wider than the sealant joint to prevent the sealant from aging due to long-term exposure to sunlight, extend the service life of the sealant, and maintain the sealing performance of the wall.

8. The prefabricated wall structure and assembly method for interior decoration according to claim 2, characterized in that: In the acceptance and cleaning steps of S7, during acceptance, in addition to checking the appearance and dimensions of the wall, it is also necessary to detect the sound insulation performance of the wall. Use professional sound insulation detection equipment and conduct the detection according to relevant standards. It is required that the sound insulation amount of the wall is not less than 40 dB(A). If the sound insulation performance does not meet the standard, analyze the reasons and take corresponding improvement measures, such as adding sound insulation materials or adjusting the wall structure, until the requirements are met.

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