Fabricated environment-friendly wallboard
By adopting multi-layer composite materials and innovative connection methods, the problems of insufficient environmental performance and complex connection of prefabricated wall panels have been solved, realizing efficient, environmentally friendly rapid installation and integration functions, which meet the standards of green building materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN YUANHONG ENVIRONMENTAL PROTECTION NEW MATERIALS CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-08
AI Technical Summary
Existing prefabricated wall panels have insufficient environmental performance, high production energy consumption, contain harmful substances, have complex connections and are prone to leakage and cracking, have limited functions and require additional installation facilities, and have high construction costs.
It adopts a magnesium oxysulfate cementitious material base layer, a basalt fiber reinforcement layer, a closed-cell perlite sound insulation layer, and a vacuum heat insulation layer, combined with neodymium iron boron permanent magnet strips, metal embedded parts, and elastic sealing strips to achieve rapid installation and efficient connection, integrating heat insulation and sound insulation functions.
It achieves efficient utilization of industrial solid waste, reduces carbon emissions from production, supports 100% recycling and reuse, allows for quick installation without tools, integrates fireproof, heat insulation and sound insulation functions, meets green building material standards, reduces construction waste and improves installation efficiency.
Smart Images
Figure CN224213626U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building materials technology, specifically to a prefabricated environmentally friendly wall panel. Background Technology
[0002] With the development trends of industrialized construction and green building, prefabricated wall panels have been widely used due to their convenient and efficient construction. However, existing prefabricated wall panels still have the following shortcomings:
[0003] 1. Insufficient environmental performance: Traditional wall panels mostly use concrete or organic synthetic materials, which consume a lot of energy during the production process and contain harmful substances such as formaldehyde, resulting in low utilization of industrial solid waste.
[0004] 2. Complex connection method: It relies on keel or adhesive, resulting in low installation efficiency and problems such as water leakage and cracking at the joints.
[0005] 3. Limited functionality: It lacks integrated design and requires additional installation of insulation, soundproofing, pipelines, and other facilities, increasing construction costs. Utility Model Content
[0006] The purpose of this utility model is to provide a prefabricated environmentally friendly wall panel to solve the problems mentioned in the background art.
[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0008] A prefabricated environmentally friendly wall panel includes a panel body and connecting components. The panel body comprises, from the inside out, a magnesium oxysulfate cementitious material substrate layer, a basalt fiber reinforcement layer, a closed-cell perlite sound insulation layer, and a vacuum heat insulation layer. The connecting components include neodymium iron boron permanent magnet strips embedded in the edge of the panel body, matching metal embedded parts, and stepped tenon grooves and elastic sealing strips around the perimeter of the panel body. The magnesium oxysulfate cementitious material substrate layer contains ≥70% industrial solid waste, the permanent magnet strips have a residual magnetism ≥1.2T, and the tenon groove depth is 15mm.
[0009] A further improvement of this utility model is that the density of the sulfur-oxygen magnesium cementitious material substrate layer is ≤800kg / m³. 3 Water absorption rate ≤5%, fire resistance limit ≥3 hours.
[0010] A further improvement of this utility model is that the basalt fiber reinforcement layer makes the flexural strength of the plate ≥8MPa and the impact resistance ≥10J.
[0011] A further improvement of this utility model is that the thermal conductivity of the vacuum insulation layer is ≤0.0025W / (m·K), and the sound insulation of the closed-cell perlite sound insulation layer is ≥45dB.
[0012] A further improvement of this utility model is that the metal embedded part is a long strip of galvanized steel plate with expansion bolt mounting holes on the plate surface, a 90° bent positioning edge on one side, a width of 30-50mm, a thickness of ≥3mm, and is fixed to the building base by expansion bolts with a connection strength of ≥1.5kN / m; the elastic sealing strip achieves a water tightness of ≥250Pa and a vibration displacement resistance of ±5mm.
[0013] A further improvement of this utility model is that the plate has a pre-set pipeline groove with a width of 20mm and a depth of 30mm and mounting holes with a spacing of 600mm.
[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0015] 1. This utility model provides a prefabricated environmentally friendly wall panel with an industrial solid waste utilization rate of ≥70%, a 60% reduction in carbon emissions during production, 100% recyclability, no formaldehyde release, and compliance with the GB / T 35606-2020 Green Building Materials Three-Star Standard.
[0016] 2. This utility model provides a prefabricated environmentally friendly wall panel. The magnetic attraction and tenon joint connection realizes "3-second quick installation", which requires no tools and improves the installation efficiency by 80% compared with the traditional keel type, and reduces construction waste by 90%.
[0017] 3. This utility model provides a prefabricated environmentally friendly wall panel that integrates fire resistance (Class A) and thermal insulation (R value ≥ 4.0m). 2 It integrates K / W and sound insulation (STC≥45dB), with comprehensive performance exceeding the GB / T 23451-2020 standard, and also supports intelligent environmental monitoring. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the disassembly structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the metal embedded part of this utility model;
[0021] Figure 4 This is a rear view structural diagram of the sulfur-oxygen-magnesium cementitious material substrate layer of this utility model.
[0022] In the diagram: 1. Magnesium oxysulfate cementitious material substrate layer; 2. Basalt fiber reinforcement layer; 3. Closed-cell perlite sound insulation layer; 4. Vacuum thermal insulation layer; 5. Neodymium iron boron permanent magnet strip; 6. Metal embedded parts; 7. Stepped tenon groove; 8. Elastic sealing strip; 9. Pipeline groove; 10. Hanging hole; 11. Expansion bolt mounting hole. Detailed Implementation
[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] The present invention will be further described in detail below with reference to embodiments:
[0025] Example 1
[0026] like Figure 1-4 As shown, this utility model provides a prefabricated environmentally friendly wall panel, including a panel body and connecting components. The panel body includes, from the inside out, a magnesium oxysulfate cementitious material substrate layer 1, a basalt fiber reinforcement layer 2, a closed-cell perlite sound insulation layer 3, and a vacuum heat insulation layer 4.
[0027] The connecting components include neodymium iron boron permanent magnet strips 5 embedded in the edge of the plate, matching metal embedded parts 6, and stepped tenon grooves 7 and elastic sealing strips 8 around the plate.
[0028] The sulfur-oxygen-magnesium cementitious material substrate layer 1 contains ≥70% industrial solid waste, the permanent magnet strip 5 has a residual magnetism ≥1.2T, and the tenon groove 7 has a depth of 15mm. The density of the sulfur-oxygen-magnesium cementitious material substrate layer 1 is ≤800kg / m³. 3 Water absorption rate ≤5%, fire resistance limit ≥3 hours.
[0029] The basalt fiber reinforcement layer 2 provides the board with a flexural strength ≥8MPa and an impact resistance ≥10J. The vacuum insulation layer 4 has a thermal conductivity ≤0.0025W / (m·K), and the closed-cell perlite sound insulation layer 3 provides a sound insulation ≥45dB.
[0030] Example 2
[0031] like Figure 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the metal embedded part 6 is a long strip of galvanized steel plate with expansion bolt mounting holes 11 on the plate surface, a 90° bent positioning edge on one side, a width of 30-50mm, and a thickness ≥3mm. It is fixed to the building base by expansion bolts, with a connection strength ≥1.5kN / m; the elastic sealing strip 8 achieves a water tightness ≥250Pa and a vibration displacement resistance of ±5mm. The plate body has a pre-set pipe groove 9 with a width of 20mm and a depth of 30mm and mounting holes 10 spaced 600mm apart.
[0032] Example 3
[0033] like Figure 1-4 As shown, based on Example 1, this utility model provides a technical solution: Preferably, (I) the preparation of the plate is carried out according to the following steps:
[0034] 1. The industrial solid waste formulation system uses magnesite tailings (45%–55%), desulfurized gypsum (20%–30%), and fly ash (15%–25%) as the main raw materials, supplemented with magnesium sulfate modifier (3%–5%) and water-reducing agent (0.5%–1%). The magnesite tailings must be screened through an 80-100 mesh sieve, the desulfurized gypsum must be crushed to a particle size ≤2mm, and the fly ash must meet the GB / T 1596-2017 Class I standard. The total industrial solid waste content is controlled at 70%–85% to meet environmental protection requirements.
[0035] 2. Preparation Process Parameters: Add raw materials to a twin-shaft mixer according to the specified ratio, add water and stir (water-to-solid ratio 0.3-0.35) for 3-5 minutes until the slurry is homogeneous. Cast into shape using a mold with dimensions of 2400mm × 1200mm × 60mm (corresponding to standard plate specifications). Vibrate at a frequency of 50-60Hz for 20-30 seconds to eliminate air bubbles. Curing Conditions: Constant temperature 25±2℃, humidity ≥85%, initial setting time 4-6 hours. After final setting, demold and transfer to a curing kiln for 14 days, ensuring the substrate layer density is ≤800kg / m³. 3 Water absorption rate ≤5%, fire resistance limit ≥3 hours.
[0036] (II) Substrate Layer Preparation Process
[0037] 1. The industrial solid waste formulation system uses magnesite tailings (45%–55%), desulfurized gypsum (20%–30%), and fly ash (15%–25%) as the main raw materials, supplemented with magnesium sulfate modifier (3%–5%) and water-reducing agent (0.5%–1%). The magnesite tailings must be screened through an 80-100 mesh sieve, the desulfurized gypsum must be crushed to a particle size ≤2mm, and the fly ash must meet the GB / T 1596-2017 Class I standard. The total industrial solid waste content is controlled at 70%–85% to meet environmental protection requirements.
[0038] 2. Preparation Process Parameters: Add raw materials to a twin-shaft mixer according to the specified ratio, add water and stir (water-to-solid ratio 0.3-0.35) for 3-5 minutes until the slurry is homogeneous. Cast into shape using a mold with dimensions of 2400mm × 1200mm × 60mm (corresponding to standard plate specifications). Vibrate at a frequency of 50-60Hz for 20-30 seconds to eliminate air bubbles. Curing Conditions: Constant temperature 25±2℃, humidity ≥85%, initial setting time 4-6 hours. After final setting, demold and transfer to a curing kiln for 14 days, ensuring the substrate layer density is ≤800kg / m³.3 Water absorption rate ≤5%, fire resistance limit ≥3 hours.
[0039] (III) Composite process of reinforcing layer and functional layer
[0040] 1. The basalt fiber reinforced layer is laid with basalt fiber mesh fabric before the initial setting of the substrate layer (2-3 hours after pouring). The mesh fabric specification is 120g / m². 2 The grid spacing is 5mm×5mm, and it is laid orthogonally in both horizontal and vertical directions with an overlap width of ≥50mm. The fiber cloth is pretreated with a silane coupling agent to improve its adhesion to the magnesium oxysulfate substrate, ensuring that the flexural strength of the board is ≥8MPa and the impact resistance is ≥10J.
[0041] 2. The closed-cell perlite sound insulation layer uses closed-cell perlite particles with a particle size of 3-5mm, bonded together with a silicone-based binder (solid content ≥50%) to form a density of 80-100kg / m³. 3 The porous sound-absorbing layer is 10-15mm thick. The perlite particles have a closed-cell rate of ≥95% and are combined with the substrate layer through a roll forming process. The porous structure effectively absorbs low-to-mid-frequency noise of 100-500Hz, achieving a sound insulation of ≥45dB.
[0042] 3. The vacuum insulation layer uses a vacuum insulation board with a core material of nano-aerogel (5-8mm thick), covered with an aluminum foil and fiberglass composite film. It is vacuumed to a pressure ≤1Pa, and the edges are sealed with high-frequency heat sealing. The vacuum board and sound insulation layer are fully bonded together using polyurethane adhesive (tensile bond strength ≥0.3MPa), forming a high-efficiency insulation layer with a thermal conductivity ≤0.0025W / (m·K) and an overall thermal resistance ≥3.0 (m² / K). 2 ·K) / W.
[0043] Example 4
[0044] like Figure 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, optimization and functional expansion of the connection components.
[0045] (I) Metal Embedded Parts System
[0046] 1. Embedded Part Structural Design: The metal embedded parts are made of Q235 galvanized steel sheet (galvanized layer thickness ≥85μm), with specifications of 600mm length × 40mm width × 3mm thickness. φ10mm expansion bolt mounting holes (spaced 200mm) are provided on the sheet surface, and a 50mm wide 90° bent positioning edge is provided on one side, with a bending angle error ≤1°. This structure achieves the dual functions of "planar adsorption positioning + vertical limiting," ensuring that the verticality error during wall panel installation is ≤1.5mm.
[0047] 2. Installation Process Key Points: M10×100mm stainless steel expansion bolts are selected. Drilling diameter is 12mm, depth is 110mm, and hole spacing is arranged at a standard interval of 600mm (edge distance ≥150mm). During installation, a laser level is used for calibration to ensure that the elevation error of the embedded parts is ≤2mm and the flatness error is ≤1mm / m. The connection strength is verified through a pull-out test. When a lateral load of 1.5kN / m is applied, the displacement is ≤0.5mm, meeting the requirements of GB 50009-2012 load specification.
[0048] (II) Flexible sealing and functional reservation
[0049] 1. Technical Parameters of Sealing Strips: The elastic sealing strips are made of ethylene propylene diene monomer (EPDM) rubber with a Shore hardness of 60±5A, tensile strength ≥7MPa, and elongation at break ≥300%. The strip cross-section is I-shaped, and when it fits with the tongue and groove (depth 15mm, width 20mm), the compression rate is 20%~30%, achieving a water tightness of ≥250Pa (corresponding to GB / T 7106-2019 classification standard level 6). It can also accommodate inter-story displacement of ±5mm, meeting the requirements of seismic fortification zone 8 degrees.
[0050] 2. Pipeline Trench and Mounting Hole Design: The panel features a pre-set U-shaped pipeline trench with a width of 20mm and a depth of 30mm, pre-molded using ABS engineering plastic molds. The trenches are spaced 400mm longitudinally and extend horizontally through the panel. The mounting holes are φ12mm through holes, arranged in a staggered pattern with a spacing of 600mm. Nylon expansion tubes are pre-embedded in the holes, capable of withstanding a single-point hanging load of 50kg, meeting the installation requirements of interior decorative panels and intelligent equipment.
[0051] The working principle of this prefabricated environmentally friendly wall panel will be explained in detail below.
[0052] like Figure 1-4 As shown, follow these steps during installation:
[0053] 1. Drill holes in the building base at the designed spacing (600-1200mm), and fix the metal embedded parts with expansion bolts to ensure that the flatness error of the plate surface is ≤2mm;
[0054] 2. Align the permanent magnet strip of the first wall panel with the bent edge of the embedded part, and use magnetic attraction to initially fix it, while the tenon and groove cooperate with the adjacent structure or positioning part;
[0055] 3. The subsequent wall panels are attached by left and right magnetic attraction and upper and lower tenon joints, and the joints are filled with elastic sealant to complete the quick installation;
[0056] 4. Concealed pipelines are installed through pre-set channels, and decorative panels or smart sensor modules are installed on the surface.
[0057] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A prefabricated environmentally friendly wall panel, comprising a panel body and connecting components, characterized in that: The plate body comprises, from the inside out, a magnesium oxysulfate cementitious material substrate layer (1), a basalt fiber reinforcement layer (2), a closed-cell perlite sound insulation layer (3), and a vacuum heat insulation layer (4). The connecting components include neodymium iron boron permanent magnet strips (5) embedded in the edge of the plate, matching metal embedded parts (6), and stepped tenons (7) and elastic sealing strips (8) around the plate. The amount of industrial solid waste in the sulfur-oxygen-magnesium cementitious material substrate layer (1) is ≥70%, the residual magnetism of the permanent magnet strip (5) is ≥1.2T, and the depth of the tenon groove (7) is 15mm.
2. The prefabricated environmentally friendly wall panel according to claim 1, characterized in that: The density of the magnesium oxysulfate cementitious material substrate layer (1) is ≤800 kg / m³. 3 Water absorption rate ≤5%, fire resistance limit ≥3 hours.
3. The prefabricated environmentally friendly wall panel according to claim 1, characterized in that: The basalt fiber reinforcement layer (2) makes the flexural strength of the plate ≥8MPa and the impact resistance ≥10J.
4. The prefabricated environmentally friendly wall panel according to claim 1, characterized in that: The thermal conductivity of the vacuum insulation layer (4) is ≤0.0025W / (m·K), and the sound insulation of the closed-cell perlite sound insulation layer (3) is ≥45dB.
5. A prefabricated environmentally friendly wall panel according to claim 1, characterized in that: The metal embedded part (6) is a long strip of galvanized steel plate with expansion bolt mounting holes (11) on the plate surface and a 90° bent positioning edge on one side. The width is 30-50mm and the thickness is ≥3mm. It is fixed to the building base by expansion bolts with a connection strength ≥1.5kN / m. The elastic sealing strip (8) achieves a water tightness of ≥250Pa and a vibration displacement resistance of ±5mm.
6. The prefabricated environmentally friendly wall panel according to claim 1, characterized in that: The plate has a pre-set pipeline groove (9) with a width of 20mm and a depth of 30mm and mounting holes (10) with a spacing of 600mm.