Calcium silicate board for composite decorative building

Abstract

The utility model discloses a calcium silicate board for a composite decoration building, which comprises a facing layer, a first carrier layer, a heat preservation layer and a second carrier layer, the first carrier layer and the second carrier layer are arranged in parallel, the heat preservation layer is clamped between the first carrier layer and the second carrier layer, and a frustum-shaped tie part is integrally formed on the end face, facing the heat preservation layer, of the first carrier layer. At least two annular grooves are formed in the side wall of the tying part, a Y-shaped tying piece is embedded in the facing layer, the forked end of the Y-shaped tying piece is embedded in the facing layer, the trunk end of the Y-shaped tying piece sequentially penetrates through the first carrier layer and the heat preservation layer and is anchored in the second carrier layer, and the heat preservation layer is provided with transition layers between the first carrier layer and the second carrier layer. A three-dimensional anchoring system penetrating through all layers is formed through spatial staggered arrangement of the frustum-shaped pulling parts and the Y-shaped pulling parts. Due to the barb form of the frustum structure of the pulling part and the multi-stage anchoring design of the annular groove, the interlayer pulling resistance and the anti-shearing capacity are remarkably enhanced.

Description

Technical Field

[0001] This utility model belongs to the field of calcium silicate board technology, specifically relating to a calcium silicate board for composite decorative buildings. Background Technology

[0002] In the modern construction field, calcium silicate board, as a building material with fire resistance, water resistance, and high hardness, is widely used in various construction projects. Calcium silicate board is made by using loose short fibers such as inorganic mineral fibers or cellulose fibers as reinforcing materials and siliceous-calcareous materials as the main binding materials. The process involves pulping, molding, and accelerated curing reaction in high-temperature and high-pressure saturated steam to form calcium silicate gel.

[0003] However, in practical applications, calcium silicate boards have relatively high thermal conductivity, resulting in poor thermal insulation performance. Furthermore, the surface texture of calcium silicate boards is rather monotonous, lacking rich textures and colors, making it difficult to meet the diverse decorative needs of modern architecture. To address these issues, the industry typically adds an insulation layer and a decorative layer to one side of the calcium silicate board to improve its insulation performance and decorative effect. However, this simple composite structure, during long-term use, suffers from differences in thermal expansion coefficients between the insulation layer, decorative layer, and calcium silicate board due to their different materials. Under constantly changing external temperature and humidity conditions, the inconsistent expansion and contraction of the layers leads to unstable stress at the bonding surfaces, making them prone to detachment over time. Existing technologies, such as patent CN203594191U, disclose a phenolic foam fireproof, thermally insulated, and decorative integrated board that solves the interlayer bonding problem by incorporating connectors and stress grooves. However, the stress grooves created in the insulation layer can disrupt the continuity of the material, easily forming water seepage channels when humidity changes. Furthermore, the bonding agent coating process for the adhesive layer is difficult to precisely control the thickness of the adhesive layer, affecting the stress buffering effect. Therefore, this invention proposes a composite decorative building calcium silicate board that enhances interlayer pull-out and shear resistance, avoiding interlayer delamination caused by material differences in traditional composite boards; it also achieves a continuous transition in the coefficient of thermal expansion from the carrier layer to the insulation layer, mitigating sudden changes in interlayer thermal stress.

[0004] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: a composite decorative calcium silicate board for buildings, comprising a decorative layer, a first carrier layer, an insulation layer, and a second carrier layer. The first carrier layer and the second carrier layer are arranged in parallel, with an insulation layer sandwiched between them. The end face of the first carrier layer facing the insulation layer is integrally formed with a frustum-shaped tie portion. The tie portion has at least two annular grooves on its sidewall. A Y-shaped tie member is pre-embedded in the decorative layer. The forked end of the Y-shaped tie member is embedded in the decorative layer, and the main end passes through the first carrier layer and the insulation layer in sequence and is anchored inside the second carrier layer. A transition layer is provided between the insulation layer and the first carrier layer and the second carrier layer.

[0006] As a preferred technical solution of this utility model, the frustum-shaped tie part and the Y-shaped tie part are staggered in the projection direction of the plate surface to form a three-dimensional anchoring network. In the three-dimensional anchoring network, any three adjacent tie parts form an equilateral triangle arrangement.

[0007] As a preferred embodiment of this utility model, both the first carrier layer and the second carrier layer are calcium silicate boards, and the first carrier layer and the tie-in part are an integral structure.

[0008] As a preferred embodiment of this invention, the insulation layer is made of polyurethane foam.

[0009] As a preferred technical solution of this utility model, the decorative layer is made of ceramic tile and is bonded and fixed to the first carrier layer by ceramic tile adhesive.

[0010] As a preferred embodiment of this invention, the top end face of the second carrier layer is provided with a roughened surface.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention utilizes a spatially staggered arrangement of frustoconical tie sections and Y-shaped tie members to form a three-dimensional anchoring system that penetrates all layers. The "barbed" shape of the frustoconical structure of the tie section and the multi-level anchoring design of the annular groove significantly enhance the interlayer pull-out resistance and shear resistance, avoiding interface delamination caused by material differences in traditional composite panels. The bifurcated ends of the Y-shaped tie members increase the contact area with the finishing layer, dispersing the load transfer path and mitigating the risk of the finishing layer detaching due to its own weight or external forces. The transition layer, through a specific ratio of calcium silicate particles and polyurethane foam, achieves a continuous transition in the coefficient of thermal expansion from the carrier layer to the insulation layer, alleviating abrupt changes in interlayer thermal stress. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a vertical sectional view of the present invention.

[0015] Figure 2 This is a cross-sectional view of the present invention.

[0016] In the diagram: 1. Finishing layer; 2. First carrier layer; 3. Insulation layer; 4. Second carrier layer; 5. Tie-in section; 6. Y-shaped tie-in piece; 7. Textured surface; 8. Annular groove; 9. Transition layer. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example

[0019] Please see Figure 1-2 The present invention provides the following technical solution: a composite decorative calcium silicate board for building, comprising a decorative layer 1, a first carrier layer 2, an insulation layer 3, and a second carrier layer 4. The first carrier layer 2 and the second carrier layer 4 are arranged in parallel, and an insulation layer 3 is sandwiched between them. The end face of the first carrier layer 2 facing the insulation layer 3 is integrally formed with a frustum-shaped tie part 5. The tie part 5 has at least two annular grooves 8 on its side wall. A Y-shaped tie part 6 is pre-embedded in the decorative layer 1. The forked end of the Y-shaped tie part 6 is embedded in the decorative layer 1, and the main end passes through the first carrier layer 2 and the insulation layer 3 in sequence and is anchored inside the second carrier layer 4. A transition layer 9 is provided between the insulation layer 3 and the first carrier layer 2 and the second carrier layer 4.

[0020] To further enhance the stability and uniformity of the connections between layers, ensure that the layers can work together when the external environment changes, effectively disperse stress, and prevent the joint surfaces from falling off due to uneven stress, in this embodiment, as a preferred technical solution of the present invention, the frustum-shaped tie part 5 and the Y-shaped tie part 6 are staggered in the projection direction of the plate surface to form a three-dimensional anchoring network. In the three-dimensional anchoring network, any three adjacent tie parts 5 form an equilateral triangle arrangement.

[0021] In order to ensure that the composite board has good structural strength and stability, in this embodiment, as a preferred technical solution of the present invention, the first carrier layer 2 and the second carrier layer 4 are both calcium silicate boards, and the first carrier layer 2 and the tie part 5 are an integral structure.

[0022] In order to obtain excellent thermal insulation performance, reduce heat exchange between indoor and outdoor buildings, meet building energy conservation requirements, and at the same time ensure certain adhesion compatibility with other layer materials and improve the overall structural stability of the composite board, in this embodiment, as a preferred technical solution of the present invention, the insulation layer 3 is made of polyurethane foam.

[0023] In order to achieve a variety of decorative effects, meet the personalized needs of different architectural styles, and ensure that the surface layer 1 is firmly connected to the first carrier layer 2, and that the Y-shaped tie member 6 can effectively play a tying role and enhance the connection strength between the layers, in this embodiment, as a preferred technical solution of the present invention, the surface layer 1 is made of ceramic tile and is bonded and fixed to the first carrier layer 2 by ceramic tile adhesive.

[0024] In order to increase the friction and bonding area when the composite board is connected to the main building structure, further improve the stability of the connection between the composite board and the main building structure, and ensure the safety of the entire composite decorative building calcium silicate board during long-term use, in this embodiment, as a preferred technical solution of the present invention, the top end face of the second carrier layer 4 is provided with a roughened surface 7.

[0025] In summary, with the help of the above-described technical solution of this utility model,

[0026] The insulation layer 3 uses polyurethane foam, a material with low thermal conductivity. This significantly hinders the rate of heat transfer, thereby achieving excellent thermal insulation and reducing heat exchange between the building's interior and exterior, thus minimizing energy consumption. The finishing layer 1 uses ceramic tile veneer, which is firmly bonded to the first carrier layer 2 using ceramic tile adhesive. With its rich variety of colors, textures, and patterns, ceramic tile veneer can meet the personalized decorative needs of various architectural styles.

[0027] To prevent the bonding surface from falling off: Both the first carrier layer 2 and the second carrier layer 4 are calcium silicate boards, which have good structural strength and stability. The frustum shape of the tie part 5 (top diameter < bottom diameter) forms "barbs" when the insulation layer 3 is foamed and cured, which significantly improves the pull-out resistance; at least two annular grooves 8 provided on the side wall of the tie part 5 form multi-level anchoring points, and the polyurethane foam penetrates into the annular grooves 8 and cures, resulting in mechanical interlocking.

[0028] The frustum structure of the tie section 5 allows for differential expansion and contraction between the calcium silicate board and the polyurethane insulation layer 3 under temperature differences. The angle of the conical surface guides the deformation direction, preventing stress concentration (utilizing the "narrower at the top, wider at the bottom" geometric feature of the frustum structure to form a natural wedge shape: when the polyurethane expands due to heat, the material moves towards the top of the frustum, resulting in radial compression due to the narrowing path, enhancing interfacial friction; during cooling and contraction, the width of the bottom of the frustum restricts displacement rebound, forming a mechanical self-locking mechanism and increasing pull-out resistance). The annular groove 8 provides a deformation buffer space, absorbing lateral displacement caused by thermal expansion and contraction.

[0029] The forked end of the Y-shaped tie member 6 is embedded inside the finishing layer 1. The forked design increases the contact area, which is more than the traditional straight rod tie member structure, thus dispersing the self-weight load of the finishing layer 1 (such as ceramic tile).

[0030] The frustum-shaped tie part 5 and the Y-shaped tie part 6 are staggered in the projection direction of the plate surface to form a spatial anchoring network. They are arranged in an equilateral triangle in the horizontal direction to optimize the shear force transmission path. In the vertical direction, the Y-shaped tie part 6 penetrates the three-layer structure and directly transfers the load of the finishing layer 1 to the second carrier layer 4 to avoid the insulation layer 3 from being deformed by pressure.

[0031] The transition layer 9 is composed of polyurethane foam and calcium silicate particles mixed in a certain volume ratio. Its coefficient of thermal expansion transitions gradually from the calcium silicate board to the polyurethane layer, rather than abruptly. The thickness of the transition layer 9 is 15%-20% of that of the insulation layer 3. Through the coordinated design of thickness and material ratio, the thermal stress is gradually reduced along the thickness direction. The calcium silicate particles act as a rigid support, suppressing excessive deformation of the polyurethane foam.

[0032] This interlaced and continuous tie structure acts like a strong "bond" between the layers. When the layers expand and contract to different degrees due to thermal expansion and contraction, it can withstand and disperse the stress caused by the difference in expansion and contraction, so that the layers always maintain a tight connection and effectively avoid the phenomenon of falling off due to stress concentration at the joint surface.

[0033] Finally, it should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A composite decorative calcium silicate board for building, comprising a facing layer (1), a first carrier layer (2), an insulation layer (3) and a second carrier layer (4), characterized in that: The first carrier layer (2) and the second carrier layer (4) are arranged in parallel, and a heat insulation layer (3) is sandwiched between them. The end face of the first carrier layer (2) facing the heat insulation layer (3) is integrally formed with a frustum-shaped tie part (5). The tie part (5) has at least two annular grooves (8) on its side wall. A Y-shaped tie part (6) is pre-embedded in the decorative layer (1). The bifurcated end of the Y-shaped tie part (6) is embedded in the decorative layer (1), and the main end passes through the first carrier layer (2) and the heat insulation layer (3) in sequence and is anchored inside the second carrier layer (4). The heat insulation layer (3) has a transition layer (9) between the first carrier layer (2) and the second carrier layer (4).

2. The composite decorative calcium silicate board according to claim 1, characterized in that: The frustum-shaped tie part (5) and the Y-shaped tie part (6) are staggered in the projection direction of the plate surface to form a three-dimensional anchoring network. In the three-dimensional anchoring network, any three adjacent tie parts (5) form an equilateral triangle arrangement.

3. The composite decorative calcium silicate board according to claim 1, characterized in that: The first carrier layer (2) and the second carrier layer (4) are both calcium silicate boards, and the first carrier layer (2) and the tie part (5) are an integral structure.

4. The composite decorative calcium silicate board according to claim 1, characterized in that: The insulation layer (3) is made of polyurethane foam.

5. The composite decorative calcium silicate board according to claim 1, characterized in that: The finishing layer (1) is made of ceramic tile and is bonded and fixed to the first carrier layer (2) by ceramic tile adhesive.

6. The composite decorative calcium silicate board according to claim 1, characterized in that: The top end face of the second carrier layer (4) is provided with a roughened surface (7).

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