Wallboard with interlocking structure

By combining the mechanical interlocking force of protrusions on the outer side of the inner layer of the wall panel and grooves on the inner side of the surface panel with the aerogel coating, a three-way interlocking structure is formed, which solves the problems of low strength and poor sound insulation and heat preservation of the exterior wall panel, and achieves high strength and good sound insulation and heat preservation of the wall panel.

CN223984207UActive Publication Date: 2026-03-10LINDU LVJIAN (JIANGSU) ENG DESIGN & RES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

The existing exterior wall panels are not strong enough, are prone to falling off, and have poor sound insulation and heat preservation effects.

Method used

The inner layer has multiple protrusions on the outside, and the outer surface panel has grooves that match the protrusions on the inside, forming a mechanical interlocking force. The connection strength is enhanced by an aerogel coating, realizing a three-way interlocking mechanism.

Benefits of technology

It improves the strength and sound insulation of the wall panels, prevents them from falling off, and enhances safety redundancy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model relates to a wallboard with an interlocking structure, a layer structure comprises an inner layer board, an aerogel coating and a facing board, so that the sound insulation and heat preservation effects of the wallboard are ensured; wherein a plurality of bulges are arranged on the outer side of the inner-layer plate; a plurality of grooves matched with the protrusions are formed in the inner side of the facing plate, and mechanical occlusal force is formed through the protrusions and the grooves. When the wallboard is used, in the y-axis direction of the straight line where the transverse ribs are located and the z-axis direction of the straight line where the vertical ribs are located, the wallboard resists an in-plane load through the mechanical meshing force of the convex ribs, the friction force of an overlapping interface and the bonding force of the aerogel coating; in the x-axis direction perpendicular to the transverse ribs and the vertical ribs, the wallboard resists out-of-plane loads through the mechanical occlusal force of the protrusions and the friction force of the overlapping interface, and therefore a three-direction interlocking mechanism of an existing heterogeneous material layer is formed, the strength of the wall is guaranteed, and the wall is not prone to falling off.
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Description

Technical Field

[0001] This utility model relates to the field of construction, and in particular to a wall panel with an interlocking structure. Background Technology

[0002] With the increase in residential, apartment, office, educational, and hospital buildings in my country, the requirements for sound insulation and thermal insulation are also becoming increasingly stringent. Ordinary wall materials cannot effectively isolate the sound insulation problems caused by vibrations. Good sound insulation and thermal insulation environments have become one of the important characteristics of green buildings. As a result, various types of exterior wall panels are constantly being introduced and widely used in the construction industry.

[0003] Currently, existing exterior wall panels are not strong enough and are prone to falling off after being installed on the wall. They also have problems with poor sound insulation and heat preservation. Utility Model Content

[0004] The purpose of this utility model is to address the deficiencies of existing technologies by providing a wall panel structure with an interlocking mechanism, comprising an inner layer panel, an aerogel coating, and a surface panel, thereby ensuring the sound insulation and heat preservation effect of the wall panel. The inner layer panel has multiple protrusions on its outer side; the surface panel has multiple grooves on its inner side that match the protrusions, forming a mechanical interlocking force through the arrangement of the protrusions and grooves. Furthermore, the grooves are sloped around their perimeter, matching the slopes around the protrusions, thus forming an inclined overlapping and interlocking interface, thereby supplementing resistance and increasing the safety redundancy of the wall panel. When in use, along the y-axis direction where the horizontal ribs are located and the z-axis direction where the vertical ribs are located, the wall panel resists in-plane loads through the mechanical interlocking force of the protrusions, the frictional force of the overlapping interface, and the adhesive force of the aerogel coating. Along the x-axis direction, which is perpendicular to both the horizontal and vertical ribs, the wall panel resists out-of-plane loads through the mechanical interlocking force of the protrusions and the frictional force of the overlapping interface, thus forming a three-way interlocking mechanism for the heterogeneous material layers, ensuring the strength of the wall and preventing it from easily falling off.

[0005] To achieve the above objectives, this utility model provides a wall panel with an interlocking structure, including...

[0006] This utility model provides a wall panel with an interlocking structure. The layer structure includes an inner layer, an aerogel coating, and a surface panel, thereby ensuring the sound insulation and heat preservation effect of the wall panel. The outer side of the inner layer has multiple protrusions; the inner side of the surface panel has multiple grooves that match the protrusions. The protrusions and grooves form a mechanical interlocking force. Furthermore, the grooves are sloped around their perimeter, matching the slopes around the protrusions, thus forming an inclined overlapping and interlocking interface, thereby supplementing resistance and increasing the safety redundancy of the wall panel. When in use, along the y-axis direction where the horizontal ribs are located and the z-axis direction where the vertical ribs are located, the wall panel resists in-plane loads through the mechanical interlocking force of the protrusions, the friction of the overlapping interface, and the adhesive force of the aerogel coating. Along the x-axis direction, which is perpendicular to both the horizontal and vertical ribs, the wall panel resists out-of-plane loads through the mechanical interlocking force of the protrusions and the friction of the overlapping interface, thus forming a three-way interlocking mechanism of the heterogeneous material layers, thereby ensuring the strength of the wall and preventing it from easily falling off. Attached Figure Description

[0007] Figure 1 A schematic diagram of a cross-section of a wall panel with an interlocking structure is provided for an embodiment of this utility model;

[0008] Figure 2 A structural schematic diagram of a wall panel unit provided in an embodiment of this utility model;

[0009] Figure 3 An exploded view of a wall panel unit provided for an embodiment of this utility model;

[0010] Figure 4 This is a schematic diagram of a partial skeleton structure provided in an embodiment of the present utility model;

[0011] Figure 5 A schematic diagram of the panel side structure provided in an embodiment of this utility model;

[0012] Figure 6 A schematic diagram of the outer surface structure of the aerogel coating provided in an embodiment of this utility model;

[0013] Figure 7 A schematic diagram of the inner side structure of the decorative panel provided in an embodiment of this utility model;

[0014] Figure 8 for Figure 2 Schematic diagram of section B in local area. Detailed Implementation

[0015] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a structural schematic diagram of a cross-section of a wall panel with an interlocking structure, provided as an embodiment of the present invention. Figure 2 This is a structural schematic diagram of a wall panel unit provided in an embodiment of the present utility model. Figure 3 This utility model provides an exploded view of a wall panel unit according to an embodiment of the present invention. It is understood that... Figure 1 The area A marked by the dashed line represents a wall panel unit, combined with... Figures 1 to 3 As shown, the wall panel layer structure with interlocking structure provided in this embodiment of the utility model includes, from the inside out, an inner layer panel 1, an aerogel coating 2, and a surface panel 3. The structure between each layer of the wall panel will be described in detail below.

[0017] The inner plate 1 has multiple protrusions 121 on its outer side, and the protrusions 121 are arranged in an inclined plane around the center of the protrusions 121.

[0018] The aerogel coating 2 has excellent sound insulation and thermal insulation effects. When applied between panel 12 and surface panel 3, it significantly improves the overall sound insulation and thermal insulation of the wall panel. The aerogel coating 2 is sprayed onto the outer side of the inner panel 1, serving both sound insulation and thermal insulation purposes, and also bonding the inner panel 1 and surface panel 3. It forms an adhesive force at the interface between the inner panel 1 and surface panel 3, thereby increasing the connection strength between them. It can be understood that because the aerogel is sprayed onto the outer side of the inner panel 1, its shape is the same as the outer surface shape of the inner panel 1, forming a corresponding protrusion 121 structure and a convex surface extending inwards from the protrusion 121 as the center. Specifically, as shown... Figure 6 As shown. Preferably, the thickness of the aerogel coating 2 is 1 mm to 3 mm, thereby ensuring the sound insulation effect of the wall panel. The thermal conductivity is less than 0.05 W / (m·k), thereby ensuring the thermal insulation effect of the wall panel. Table 1 below shows the data on the gain effect of the aerogel coating on the thermal insulation performance of the wall panel.

[0019] Table 1. Data on the effect of aerogel coating on the thermal insulation performance of wall panels.

[0020]

[0021] As shown in Table 1, taking a 240mm thick ordinary sintered clay brick wall as an example, its average heat transfer coefficient is as high as 1.59 [W / (m²]]. 2 Applying aerogel coatings of 1mm, 2mm, and 3mm thickness to the wall surface can reduce its average heat transfer coefficient to 1.04 [W / (m²).] 2 ·K)]、0.77[W / (m 2 ·K)]、0.61[W / (m 2 The maximum reduction is as high as 62%, and the thermal insulation performance is significantly improved.

[0022] The facing panel 3 is disposed on the outside of the aerogel coating 2, and is cast onto the outside of the aerogel coating. The outer surface of the facing panel has a planar structure, such as... Figure 7 As shown, the inner side of the cladding panel 3 is provided with multiple grooves 31 that are adapted to the protrusions 121. The arrangement of the protrusions 121 and the grooves 31 forms a mechanical interlocking force. Furthermore, the grooves 31 are sloped around their perimeter, adapting to the sloped perimeter of the protrusions 121, thereby forming an inclined overlapping and interlocking interface, thus providing resistance supplementation and increasing the safety redundancy of the wall panel. It is understood that those skilled in the art can select rigid or flexible decorative panels according to the facade design requirements.

[0023] In a preferred embodiment, this application also provides a reinforced inner slab, the inner slab 1 specifically including a skeleton 11 and a panel 12, which is a cement panel 12 with a skeleton 11.

[0024] The skeleton 11 here is a load-bearing component. The skeleton includes, but is not limited to, various types of reinforcement such as ordinary strength, high strength, and FRP. Specifically, it includes multiple horizontal bars 111, vertical bars 112, and raised rib reinforcement 113. Horizontal bars 111 refer to horizontally placed steel bars, and vertical bars 112 refer to vertically placed steel bars. Multiple horizontal bars 111 are arranged in parallel, and multiple vertical bars 112 are arranged in parallel, perpendicular to the horizontal bars 111, and coplanar with the horizontal bars 111. Figure 4 As shown, the protruding rib reinforcement is located at the intersection of the horizontal reinforcement 111 and the vertical reinforcement 112, and is not coplanar with the horizontal reinforcement 111 and the vertical reinforcement 112. It is a protruding steel bar with a special structure, used to achieve the interlocking between the inner layer plate 1 and the surface panel 3. It is understood that the above-mentioned steel bars are all made of the same material. Those skilled in the art can select the diameter of the steel bars according to the load conditions. For example, FRP bars can be selected. The initial design of the steel bar diameter is 3 to 32 mm. Here, FRP bars are formed by bonding multiple strands of continuous fibers (such as glass fiber, carbon fiber, etc.) with a base material (such as polyamide resin, polyethylene resin, epoxy resin, etc.), and then extruding and drawing them through a special mold.

[0025] The panel 12 here is used to house the frame 11, and its material includes, but is limited to, UHPC. UHPC is a cement-based engineering material with good durability and excellent wear resistance and impact resistance. After the frame 11 is fixed, UHPC is poured using a mold, combined with... Figure 4 As shown, Figure 4 The image shows a side view of the wall panel unit from four directions. Multiple protrusions 121 are provided on the outer side of the panel 12 for fixing and wrapping the raised rib reinforcement 113. The protrusions 121 are arranged at an angle around their centers. Preferably, the panel 12 has a thickness of 5 to 500 mm and a strength of not less than 100 MPa, thereby ensuring the sound insulation, heat preservation, and strength of the wall panel.

[0026] When the wall panel is in use, along the y-axis direction where the horizontal ribs 111 are located and the z-axis direction where the vertical ribs 112 are located, the wall panel resists in-plane loads through the mechanical interlocking force of the protruding ribs, the frictional force of the overlapping interface, and the adhesive force of the aerogel coating 2. This creates an interlocking mechanism in the y-axis and z-axis directions between the inner layer panel 1, the aerogel coating 2, and the surface panel 3. Along the x-axis direction, which is perpendicular to both the horizontal ribs 111 and the vertical ribs 112, the wall panel resists out-of-plane loads through the mechanical interlocking force of the protrusions 121 and the frictional force of the overlapping interface. This creates an interlocking mechanism in the x-axis direction between the inner layer panel 1, the aerogel coating 2, and the surface panel 3, thus achieving a three-dimensional interlocking mechanism between the heterogeneous material layers of the inner layer panel 1, the aerogel coating 2, and the surface panel 3. Here, in-plane loads refer to loads parallel to the large surface of the wall panel, and out-of-plane loads refer to loads perpendicular to the large surface of the wall panel. It should be noted that, for ease of description, the direction of the straight line where the horizontal rib 111 is located is defined as the y-axis direction, the direction of the straight line where the vertical rib 112 is located is defined as the z-axis direction, and the direction that is perpendicular to both the horizontal rib 111 and the vertical rib 112 is defined as the x-axis direction. The x-axis, y-axis, and z-axis are perpendicular to each other.

[0027] In some preferred embodiments, one end of the raised rib 113 on the skeleton 11 is located at the intersection of the horizontal rib 111 and the vertical rib 112, and the other end is annular, parallel to the plane containing the horizontal rib 111 and the vertical rib 112. It is understood that during the casting of the panel 12, a protrusion 121 will be formed at the raised rib, fixing and enclosing the raised rib 113. Preferably, the cross-section of the protrusion 121 can be femoral head shaped, i.e., a biomimetic type. From the cross-section of the raised rib, the two sides of the bottom end of the raised rib are concave inward, thereby engaging with the groove 31 of the surface panel 3 to form an interlocking action.

[0028] In some preferred embodiments, the distance between two adjacent horizontal ribs 111 is equal to the distance between two adjacent vertical ribs 112; then, with the rib 113 as the center, the distance between two adjacent horizontal ribs 111 is a variable side length, forming a square wall panel unit; within the wall panel unit, the outer surface of the panel 12 is concave inward along the y-axis direction where the horizontal ribs 111 are located and the z-axis direction where the vertical ribs 112 are located, centered on the rib 113. It can be understood that an inwardly concave slope is formed on the outer surface of the panel 12 with the rib 113 as the center, and the slope is symmetrically arranged along both the y-axis and z-axis directions with the rib 113 as the center; the aerogel coating 2 is sprayed onto the outer side of the inner layer panel 1, forming a coating with the same shape as the outer surface of the inner layer panel 1; correspondingly, the surface panel 3 is cast onto the outer side of the aerogel coating 2, thereby forming a groove 31 corresponding to the protrusion 121 in the middle of the surface panel 3, and the groove 31 is centered on the inner surface of the surface panel 3 along the horizontal ribs 111. The 11-axis section and the z-axis section of the vertical rib 112 protrude inwards. This means that, on the inner side of the panel 3, with the groove 31 as the center, outwardly convex slopes are formed around the groove 31. These slopes, centered on the groove 31, are symmetrically arranged along both the y-axis and z-axis directions. This creates a bidirectional inclined overlapping interface between the panel 12 and the panel 3. The interlocking design of these interfaces achieves interlocking in the y-axis and z-axis directions. Multiple wall panel units can be combined to form a large, integrated wall panel. For the entire wall, the overlapping interface between the panel 12 and the panel 3 is convex and concave, interlocking with each other to ensure the overall strength of the wall. Furthermore, in the x-axis direction, the protrusion 121 on the panel 12 and the groove 31 on the panel 3 further solidify the interlocking between different structural layers, achieving interlocking in the x, y, and z-axis directions and increasing the strength of the wall panel.

[0029] It should be noted that the wall panel can be divided into several wall panel units. These wall panel units can be cast into a single wall panel in one go, or they can be cast into a specific size and spliced ​​together in a certain connection method to form a whole wall panel. If splicing is used, the horizontal reinforcement inside the splicing large unit (which may contain no less than one wall panel unit) is not connected with seams, but rather space is reserved for grouting of the reinforcement. The large unit is then connected to form a whole wall panel through secondary grouting of the reinforcement.

[0030] Preferred, combined Figure 2As shown, the side length L of the wall panel unit should not exceed 200mm, and the thickness D should not exceed 60mm. The length of the wall panel unit (i.e., the dimensions of the unit's large surface in two directions) serves two purposes: first, it represents the recommended spacing of the horizontal and vertical reinforcing bars in the framework, ensuring the framework's support function and meeting the wall panel's load-bearing and protrusion anchoring requirements; second, it represents the recommended constraint range for the panel protrusions, ensuring sufficient constraint for the aerogel layer and the facing panel, preventing shear failure of the protruding rib reinforcement. The wall panel unit thickness limit here is the result of the combined effect of wall panel material zoning and structural design, aiming to achieve the performance goals of thin wall panels, high load-bearing capacity, and strong thermal insulation.

[0031] Preferred, combined Figure 5 and Figure 8 As shown, within the wall panel unit, the maximum distance between the outer side of the surface panel 3 and the inner inclined surface of the surface panel 3 is D1, the width of the protrusion 121 D0≥0.5D1, and the length of the protrusion 121 L0≥0.15L.

[0032] Understandably, the protrusion offers the following advantages in terms of shape: Its articulated, skeletal design provides in-plane and out-of-plane constraints on the wall panel while minimizing stress concentration at sharp corners, thus maximizing its own strength. It also offers the following dimensional advantages: the height and width of the protrusion's cross-section are positively correlated with the thickness of the constraint unit's surface plate and the width of the unit, respectively. Within the recommended ratio range, this ensures that the protrusion's own strength exceeds the required constraint stress. Furthermore, the recommended protrusion cross-section can accommodate reinforcing bars of various diameters, improving its load-bearing capacity.

[0033] Further optimized, combined Figure 5 and Figure 8 As shown, the minimum distance between the inner side of panel 12 and the inclined surface of panel 12 is D2, where D2 = D - D1; the angle between the outer inclined surface and the inner side of panel 12 is θ, where tan = 2(D1 - D2) / L. Here, "equal to" can also mean "approximately equal to". Those skilled in the art can adjust it dynamically according to actual needs. The setting of the angle θ is to provide reinforcement for the protrusion in terms of lateral constraint. Its range is determined by the limits of wall thickness and unit size. Since it is not the main source of lateral constraint, its most unfavorable value, i.e., 0°, is also acceptable, and therefore no specific constraint is imposed on its range.

[0034] This utility model provides a wall panel with an interlocking structure. The layer structure includes an inner layer, an aerogel coating, and a surface panel, thereby ensuring the sound insulation and heat preservation effect of the wall panel. The outer side of the inner layer has multiple protrusions; the inner side of the surface panel has multiple grooves that match the protrusions. The protrusions and grooves form a mechanical interlocking force. Furthermore, the grooves are sloped around their perimeter, matching the slopes around the protrusions, thus forming an inclined overlapping and interlocking interface, thereby supplementing resistance and increasing the safety redundancy of the wall panel. When in use, along the y-axis direction where the horizontal ribs are located and the z-axis direction where the vertical ribs are located, the wall panel resists in-plane loads through the mechanical interlocking force of the protrusions, the friction of the overlapping interface, and the adhesive force of the aerogel coating. Along the x-axis direction, which is perpendicular to both the horizontal and vertical ribs, the wall panel resists out-of-plane loads through the mechanical interlocking force of the protrusions and the friction of the overlapping interface, thus forming a three-way interlocking mechanism of the heterogeneous material layers, thereby ensuring the strength of the wall and preventing it from easily falling off.

[0035] In this utility model, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] In the description herein, the terms "a specific embodiment," "some embodiments," "one embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A wall panel having an interlocking structure, characterized by, The wallboard with the interlocking structure comprises an inner layer plate, an aerogel coating and a facing plate; wherein, The outer side of the inner layer plate is provided with a plurality of protrusions, and the periphery of the protrusions is provided with an inclined surface; The aerogel coating is sprayed on the outer side of the inner layer plate to bond the inner layer plate and the facing plate; The facing plate is arranged on the outer side of the aerogel coating, and the inner side of the facing plate is provided with a plurality of grooves matched with the protrusions; and the periphery of the grooves is provided with an inclined surface matched with the inclined surface of the periphery of the protrusions, thereby forming an inclined overlapping interlocking interface.

2. The wall panel having an interlocking structure according to claim 1, wherein The inner layer plate comprises a framework and a panel; the framework comprises a plurality of horizontal ribs, vertical ribs and riblet reinforcing bars, the plurality of horizontal ribs are arranged in parallel, the plurality of vertical ribs are arranged in parallel and perpendicular to the horizontal ribs and coplanar with the horizontal ribs, and the riblet reinforcing bars are arranged at the intersection of the horizontal ribs and the vertical ribs; the panel accommodates the framework, and the outer side of the panel is provided with a plurality of protrusions to fix and wrap the riblet reinforcing bars.

3. The wall panel having an interlocking structure according to claim 2, wherein One end of the riblet reinforcing bar is arranged at the intersection of the horizontal rib and the vertical rib, and the other end is in the form of a circular ring parallel to the plane where the horizontal rib and the vertical rib are located.

4. The wall panel having an interlocking structure according to claim 2, wherein The distance between the adjacent two horizontal ribs is equal to the distance between the adjacent two vertical ribs; With the riblet reinforcing bar as the center, the distance between the adjacent two horizontal ribs is a variable side length, forming a wallboard unit. In the wallboard unit, the outer side of the panel is concave inward along the y-axis direction of the horizontal rib and the z-axis direction of the vertical rib with the riblet reinforcing bar as the center; the aerogel coating is sprayed on the outer side of the inner layer plate; correspondingly, the inner side of the facing plate is convex inward along the y-axis direction of the horizontal rib and the z-axis direction of the vertical rib with the groove as the center, thereby realizing a bidirectional inclined overlapping interface; and the mutual embedding between the layers is realized through the arrangement of the protrusions on the panel and the grooves of the facing plate.

5. The wall panel having an interlocking structure according to claim 4, wherein The side length L of the wallboard unit is not greater than 200 mm, and the thickness D is not greater than 60 mm; in the wallboard unit, the maximum distance between the outer side of the facing plate and the inner side inclined surface of the facing plate is D1, the width D0 of the protrusion is greater than or equal to 0.5D1, and the length L0 of the protrusion is greater than or equal to 0.15L.

6. The wall panel having an interlocking structure according to claim 5, wherein The minimum distance between the inner side of the panel and the panel inclined surface is D2, and D2=D-D1; The included angle between the outer side inclined surface of the panel and the inner side is θ, and tanθ=2(D1-D2) / L.

7. The wall panel having an interlocking structure according to claim 2, wherein The diameter of the framework is 3 to 32 mm; the thickness of the panel is 5 to 500 mm, and the strength is not less than 100 MPa; the thickness of the aerogel coating is 1 mm to 3 mm, and the thermal conductivity is less than 0.05 W / (m·k).

8. The wall panel having an interlocking structure according to claim 1, wherein The cross section of the protrusion is in the form of a femoral head.

9. The wall panel having an interlocking structure according to claim 1, wherein The facing plate is cast on the outer side of the gel coating.

10. The wall panel having an interlocking structure according to claim 1, wherein When the wallboard is used, in the y-axis direction and the z-axis direction, the wallboard resists the in-plane load through the mechanical interlocking force of the riblet, the friction of the overlapping interface and the cementation of the aerogel coating; In the x-axis direction, the wallboard resists the out-of-plane load through the mechanical interlocking force of the protrusion and the friction of the overlapping interface, thereby forming a three-way interlocking mechanism of the present heterogeneous material layer.