A thermal insulation decorative board with good flame retardance

Abstract

This utility model discloses a heat-insulating decorative panel with good flame retardancy, comprising an outer decorative panel, a heat-insulating core panel, and a back panel stacked together. The bottom edge of the outer decorative panel is bent into an overlapping slot, and the top edge of the outer decorative panel is bent into an overlapping protrusion. Both the overlapping slot and the overlapping protrusion are continuous in length. Adjacent overlapping protrusions can be inserted into the overlapping slots below. The heat-insulating core panel is specifically made of rock wool board or gold-plated board. This utility model's heat-insulating decorative panel with good flame retardancy, using rock wool board or gold-plated board as the heat-insulating core panel, improves its flame retardant and fireproof performance.

Description

Technical Field

[0001] This utility model relates to the field of building materials technology, and in particular to a heat-insulating decorative board with good flame retardancy. Background Technology

[0002] Metal carved panels are a new type of building material that integrates decoration and thermal insulation functions. They are formed by composite layers of a decorative panel, an insulation core board, and a backing board. The decorative panel is an embossed metal sheet, such as galvanized steel or aluminized zinc steel, which, after embossing and baking paint processes, can create various decorative effects such as brick patterns, wood grain, and flat stripes. The backing board is an aluminum foil protective layer that provides thermal insulation and moisture protection. Furthermore, this decorative insulation board uses a tongue-and-groove splicing method, allowing for one-piece installation on the wall, greatly improving construction speed and reducing labor costs.

[0003] However, most existing metal carved panels use rigid high-density polyurethane foam insulation boards as their core. These polyurethane foam insulation boards have relatively poor flame retardant properties, ideally achieving a B1 rating. Therefore, they cannot be used in buildings with high fire resistance requirements.

[0004] Therefore, it is necessary to develop a new type of heat-insulating decorative board with good flame retardancy to address the above-mentioned defects, which has become an urgent problem for those skilled in the art. Utility Model Content

[0005] The purpose of this utility model is to provide a heat-insulating decorative board with good flame retardancy, which uses rock wool board or gold board as the heat-insulating core board, thereby improving the flame retardant and fireproof performance.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This utility model discloses a heat-insulating decorative panel with good flame retardancy, comprising an outer decorative panel, a heat-insulating core panel, and a back panel that are compositely stacked together. The bottom edge of the outer decorative panel is bent into an overlapping slot, and the top edge of the outer decorative panel is bent into an overlapping protrusion. Both the overlapping slot and the overlapping protrusion are continuous. Adjacent overlapping protrusions can be inserted into the overlapping slot below. The heat-insulating core panel is specifically made of rock wool board or gold board.

[0008] Furthermore, the thermal insulation core board is hot-pressed together with the outer decorative panel and the back panel using epoxy resin adhesive.

[0009] Furthermore, a sealing element is provided between the overlapping protrusions and the overlapping slots, and the sealing element seals the gap between the overlaps.

[0010] Furthermore, the sealing element specifically adopts a side sealing strip, and a sealing groove is provided along the entire length of the outer side wall of the overlapping protrusion. The side sealing strip is installed in the sealing groove and seals the gap between the outer side wall of the overlapping protrusion and the groove wall of the overlapping slot.

[0011] Furthermore, the sealing element specifically adopts a top sealing strip, which is installed throughout the bottom of the lap joint slot; the top sealing strip seals the gap between the bottom of the lap joint slot and the top of the lap joint protrusion.

[0012] Furthermore, the sealing element is specifically made of EPDM rubber or silicone rubber.

[0013] Furthermore, the outer decorative panel is specifically made of galvanized steel sheet and coated with weather-resistant decorative paint.

[0014] Furthermore, the back panel is made of color steel plate with a polyester coating.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0016] This utility model discloses a heat-insulating decorative panel with good flame retardancy. By bending the bottom and top edges of the outer panel to form overlapping slots and overlapping protrusions respectively, the two ends of the same panel are processed. The back panel only needs to be cut to the appropriate size, which is convenient for processing and forming. By using rock wool board or gold board with fire resistance grade A to replace the existing fire-resistant polyurethane board with grade B fire resistance, it is suitable for exterior wall insulation and decoration of buildings with higher safety requirements.

[0017] Furthermore, applying a polyester coating to the outer wall of the color steel plate significantly improves moisture resistance and prevents rust. A continuous sealing groove is created on the outer wall of the overlapping protrusion, within which a side sealing strip is installed. This side sealing strip seals the gap between the outer wall of the overlapping protrusion and the groove wall of the overlapping slot. This provides initial moisture protection at the overlapping joint, preventing rainwater and moisture from spreading inwards, resulting in excellent moisture resistance. By directly installing the top sealing strip into the bottom of the overlapping slot, the overlapping gap is sealed at the top of the overlapping protrusion, forming a seal at the highest point of the overlapping joint. This allows rainwater that has seeped into the overlapping joint to drain away naturally when rainwater recedes, preventing it from further entering and contacting the insulation core board. It also eliminates the need for additional sealing strip installation grooves, reducing processing costs. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the front sectional view of the spliced ​​structure of Embodiment 1 of the heat-insulating decorative panel with good flame retardancy of this utility model;

[0020] Figure 2 This is a schematic diagram of the front sectional view of the splicing part in Embodiment 2 of this utility model;

[0021] Figure 3 This is a schematic diagram of the front sectional view of the splicing part in Embodiment 3 of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Outer trim panel; 101. Overlapping protrusion; 102. Overlapping slot; 103. Sealing groove; 2. Insulation core board; 201. Protrusion block; 202. Groove; 3. Back panel; 4. Side sealing strip; 5. Top sealing strip. Detailed Implementation

[0023] The core of this utility model is to provide a heat-insulating decorative board with good flame retardancy, which uses rock wool board or gold board as the heat-insulating core board, thereby improving the flame retardant and fireproof performance.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In the following detailed description of the accompanying drawings, the descriptions of top, bottom, left, and right are all relative to the accompanying drawings and should not be construed as limiting the present utility model.

[0025] Refer to the attached diagram. Figure 1 This is a schematic diagram of the front sectional view of the spliced ​​structure of Embodiment 1 of the heat-insulating decorative panel with good flame retardancy of this utility model; Figure 2 This is a schematic diagram of the front sectional view of the splicing part in Embodiment 2 of this utility model; Figure 3 This is a schematic diagram of the front sectional view of the splicing part in Embodiment 3 of this utility model.

[0026] Example 1

[0027] like Figure 1 As shown in one specific embodiment, a heat-insulating decorative panel with good flame retardancy includes an outer decorative panel 1, a heat-insulating core panel 2, and a back panel 3, which are compositely stacked together. The bottom edge of the outer decorative panel 1 is bent to form an overlapping slot 102, and the top edge of the outer decorative panel 1 is bent to form an overlapping protrusion 101. Both the overlapping slot 102 and the overlapping protrusion 101 are continuous. Adjacent overlapping protrusions 101 can be inserted into the overlapping slot 102 below. The heat-insulating core panel 2 is specifically made of rock wool board or gold-plated board.

[0028] The specifications of the thermal insulation decorative panel in this embodiment are: thickness 20mm, width 383mm, and length 2000mm.

[0029] Specifically, such as Figure 1 As shown, the cross-section of the overlapping slot 102 is M-shaped, and the overlapping protrusion 101 is inserted into the top groove of the overlapping slot 102. The insulation core board 2 has a protrusion block 201 on the back side of the overlapping protrusion 101, and a groove 202 on the back side of the overlapping slot 102. When the overlapping protrusion 101 is inserted into the overlapping slot 102 to complete the overlap, the protrusion block 201 abuts against the groove 202.

[0030] By bending the bottom and top edges of the outer decorative panel 1 to form overlapping slots 102 and overlapping protrusions 101 respectively, the back panel 3 only needs to be cut to the appropriate size, which is convenient for processing and forming. By using rock wool board or gold board with fire resistance grade A to replace the existing B-grade fireproof polyurethane board, it can be made suitable for building exterior wall insulation and decoration with higher safety requirements.

[0031] Specifically, the insulation core board 2 is hot-pressed together with the outer decorative panel 1 and the back panel 3 using epoxy resin adhesive. This ensures the bonding strength between the three components and prevents them from falling off later.

[0032] Specifically, the outer cladding panel 1 is made of galvanized steel sheet and coated with a weather-resistant decorative paint. Obviously, the outer cladding panel 1 can also be embossed or pressed with a brick pattern.

[0033] Specifically, the back panel 3 is made of color-coated steel sheet with a polyester coating. Obviously, an aluminum foil layer can also be used as an alternative.

[0034] By coating the outer wall of the color steel plate with a polyester coating, the moisture resistance can be significantly improved, and rust can be avoided.

[0035] Example 2

[0036] When this fire-retardant insulating decorative panel is used for exterior wall insulation, a gap remains between the overlapping protrusions 101 and the overlapping slots 102. During the rainy season, rainwater backflow through the gaps in low-lying areas can cause rainwater to enter the insulation core board 2 along the gaps. Furthermore, when rock wool boards are used as the insulation layer, they tend to absorb water and expand, easily leading to board swelling. The trapped moisture can also cause the outer decorative panel 1 to rust. Although in the prior art, workers typically apply sealant to the overlapping joints of the overlapping protrusions 101 and the overlapping slots 102 in low-lying areas, the exposed sealant is prone to peeling off, resulting in a loss of sealing performance.

[0037] To address the aforementioned issues, this embodiment is an improvement upon Embodiment 1. In this embodiment, a sealing element is provided between the overlapping protrusions 101 and the overlapping slots 102 of the flame-retardant insulating decorative panel, the sealing element sealing the gap between the overlaps.

[0038] Specifically, such as Figure 2 As shown, the sealing element specifically adopts a side sealing strip 4, and a sealing groove 103 is provided along the entire length of the outer side wall of the overlapping protrusion 101. The cross-section of the sealing groove 103 is C-shaped or rectangular. The side sealing strip 4 is installed in the sealing groove 103, and the side sealing strip 4 seals the gap between the outer side wall of the overlapping protrusion 101 and the groove wall of the overlapping slot 102.

[0039] Specifically, the side sealing strip 4 is made of EPDM rubber or silicone rubber, which has good weather resistance. The bottom surface of the side sealing strip 4 is coated with adhesive and bonded to the sealing groove 103.

[0040] A sealing groove 103 is provided along the entire length of the outer wall of the overlapping protrusion 101, and a side sealing strip 4 is installed in the sealing groove 103. The side sealing strip 4 seals the gap between the outer wall of the overlapping protrusion 101 and the groove wall of the overlapping slot 102. This can seal and prevent moisture at the initial part of the overlapping gap, preventing rainwater and moisture from spreading inward, and providing good moisture protection.

[0041] Example 3

[0042] In Embodiment 2 described above, a sealing groove 103 needs to be formed by bending along the entire length of the outer wall of the overlapping protrusion 101, which increases the processing cost. This embodiment is a further improvement on Embodiment 2 described above.

[0043] Typically, at the connection point between the overlap protrusion 101 and the overlap slot 102, a gap is left between the top surface of the overlap protrusion 101 and the bottom of the overlap slot 102. For example... Figure 3 As shown, in this embodiment, the sealing element is specifically a top sealing strip 5, which is installed along its entire length inside the bottom of the overlapping slot 102. The top sealing strip 5 seals the gap between the bottom of the overlapping slot 102 and the top of the overlapping protrusion 101.

[0044] The top sealing strip 5 is made of EPDM rubber or silicone rubber, which has good weather resistance. The top sealing strip 5 is bonded to the bottom of the overlapping slot 102 with adhesive.

[0045] By directly installing the top sealing strip 5 into the bottom of the lap joint slot 102, the lap gap can be sealed at the top of the lap protrusion 101, forming a seal at the highest point of the lap joint. This allows rainwater that has seeped into the lap joint to drain away naturally when the rainwater recedes, preventing it from continuing to enter and contact the insulation core board 2. It also avoids the need for additional processing of the sealing strip's mounting groove, reducing processing costs.

[0046] The flame-retardant thermal insulation decorative panel described in this case is formed by bending the bottom and top edges of the outer panel 1 to create overlapping slots 102 and overlapping protrusions 101, respectively. Processing is done on both ends of the same panel, and the back panel 3 only needs to be cut to the appropriate size, facilitating processing. By using Class A fire-resistant rock wool board or gold-plated board instead of the existing Class B fire-resistant polyurethane board, it becomes suitable for exterior wall insulation and decoration of buildings with higher safety requirements. Furthermore, by coating the outer wall of the color steel plate with a polyester coating, moisture resistance is significantly improved, preventing rust. A continuous sealing groove 103 is provided on the outer wall of the overlapping protrusion 101, and a side sealing strip 4 is installed within the sealing groove 103. The side sealing strip 4 seals the gap between the outer wall of the overlapping protrusion 101 and the groove wall of the overlapping slot 102. This seals the initial part of the overlapping joint for moisture prevention, preventing rainwater and moisture from spreading inward, resulting in good moisture resistance. By directly installing the top sealing strip 5 into the bottom of the lap joint slot 102, the lap gap can be sealed at the top of the lap protrusion 101, forming a seal at the highest point of the lap joint. This allows rainwater that has seeped into the lap joint to drain away naturally when the rainwater recedes, preventing it from continuing to enter and contact the insulation core board 2. It also avoids the need for additional processing of the sealing strip's mounting groove, reducing processing costs.

[0047] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A heat-insulating decorative panel with good flame retardancy, characterized in that: The product includes an outer decorative panel (1), an insulation core board (2), and a back panel (3) that are stacked together. The bottom edge of the outer decorative panel (1) is bent to form an overlapping slot (102), and the top edge of the outer decorative panel (1) is bent to form an overlapping protrusion (101). The overlapping slot (102) and the overlapping protrusion (101) are both continuous. Adjacent overlapping protrusions (101) can be inserted into the overlapping slot (102) below. The insulation core board (2) is specifically made of rock wool board or gold board.

2. The heat-insulating decorative panel with good flame retardancy according to claim 1, characterized in that: The thermal insulation core board (2) is hot-pressed together with the outer decorative panel (1) and the back panel (3) using epoxy resin adhesive.

3. The heat-insulating decorative panel with good flame retardancy according to claim 1, characterized in that: A sealing element is provided between the overlapping protrusion (101) and the overlapping slot (102) that overlap each other, and the sealing element seals the gap of the overlap.

4. The heat-insulating decorative panel with good flame retardancy according to claim 3, characterized in that: The sealing element specifically adopts a side sealing strip (4). A sealing groove (103) is provided along the outer side wall of the overlapping protrusion (101). The side sealing strip (4) is installed in the sealing groove (103). The side sealing strip (4) seals the gap between the outer side wall of the overlapping protrusion (101) and the groove wall of the overlapping slot (102).

5. The heat-insulating decorative panel with good flame retardancy according to claim 3, characterized in that: The sealing element is specifically a top sealing strip (5), which is installed along its length inside the bottom of the lap joint slot (102); the top sealing strip (5) seals the gap between the bottom of the lap joint slot (102) and the top of the lap joint protrusion (101).

6. The heat-insulating decorative panel with good flame retardancy according to claim 3, characterized in that: The sealing element is specifically made of EPDM rubber or silicone rubber.

7. The heat-insulating decorative panel with good flame retardancy according to claim 1, characterized in that: The outer decorative panel (1) is made of galvanized steel sheet and coated with weather-resistant decorative paint.

8. The heat-insulating decorative panel with good flame retardancy according to claim 1, characterized in that: The back panel (3) is made of color steel plate with polyester coating.

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