Composite vacuum heat-insulation decorative wallboard

Abstract

The invention discloses a composite vacuum heat insulation decorative wallboard, and relates to the technical field of decoration building materials. Comprising a modularized wallboard, the modularized wallboard comprises a sound insulation fireproof plate, vacuum heat insulation plates, a light heat preservation connecting plate and a decorative plate, and one side of the sound insulation fireproof plate is detachably connected with at least one layer of vacuum heat insulation plate. After the sound insulation and fire prevention plate is installed, one or two or more layers of vacuum heat insulation plates can be installed, a user can adjust the number of the vacuum heat insulation plates according to requirements so as to adjust the heat insulation effect, the light heat insulation connecting plate can be directly connected with the sound insulation and fire prevention plate, modular design is adopted, and installation is convenient. The modular wallboards with different thicknesses and heat insulation performance can be matched by a user according to own requirements, so that the modular wallboards are more convenient to process and can be produced by using one set of mold, the processing cost is greatly reduced, economic benefits are met, and the modular wallboard has a wide application prospect.

Description

Technical Field

[0001] The invention relates to the technical field of decoration building materials, in particular to a composite vacuum insulation decorative wallboard. Background Art

[0002] Decorative wall panels are a type of panel used for wall decoration, with a variety of materials, designs, and functions. Decorative wall panels can be classified according to the material, such as bamboo fiber integrated wall panels, carbon crystal panels, PVC ecological wood wall panels, etc. These wall panels are made of different materials, but all have good decorative effects and practicality. For example, bamboo fiber integrated wall panels are widely popular for their environmental protection, easy installation, waterproof and moisture-proof features; carbon crystal panels are used in high-end decoration for their high thermal stability, wear resistance, and easy cleaning.

[0003] Composite decorative wall panels generally consist of multiple layers of panels with different functions. However, the existing composite decorative wall panels on the market have a fixed structure, the thickness of the wall panels cannot be adjusted according to user insulation requirements, the degree of modularity is low, wall panels of different thicknesses require different molds to make, the manufacturing cost is high, and when the wall panels are assembled with the wall, they are limited by the flatness of the wall surface, which may cause the installed wall panels to slightly arch outward, resulting in larger gaps between adjacent left and right or up and down wall panels, affecting the appearance. At the same time, the decorative surfaces of most wall panels on the market cannot be replaced individually, the overall replacement cost is high, and the use effect is not ideal.

[0004] ‌ Summary of the invention To achieve the above object, the present invention provides the following technical solutions: a composite vacuum insulation decorative wall panel, comprising a modular wall panel, wherein the modular wall panel comprises a sound insulation fireproof panel, a vacuum insulation panel, a lightweight insulation connection panel and a decorative panel, wherein one side of the sound insulation fireproof panel is detachably connected to at least one layer of vacuum insulation panel, a side of the vacuum insulation panel away from the sound insulation fireproof panel is detachably connected to a lightweight insulation connection panel, and a side of the lightweight insulation connection panel away from the vacuum insulation panel is connected to a decorative panel; The sound insulation and fireproof board is installed on the wall by expansion screws. The sound insulation and fireproof board includes two layers of aluminum-magnesium composite boards. Connectors 1 are provided at the four corners of the two layers of aluminum-magnesium composite boards. A multi-layer sound insulation cavity is provided between the two layers of aluminum-magnesium composite boards. The vacuum insulation panel comprises an aluminum frame, and the four corners of the aluminum frame are each provided with a second connector for docking with the first connector, and the aluminum frame is provided with multiple layers of crisscross vacuum insulation cavities; Connecting pieces three are arranged inside the four corners of the light-weight heat-insulating connecting plate for docking with connecting piece two.

[0005] As a preferred technical solution of the present invention, the sound insulation cavity is elliptical, the positions of the sound insulation cavities of two adjacent layers are staggered, and the distances between the multiple layers of sound insulation cavities increase gradually toward the vacuum insulation panel.

[0006] As a preferred technical solution of the present invention, a multi-layer support member is further arranged between the two layers of the aluminum-magnesium composite plate. The support member is welded by multiple bent steel sheets. Grooves for avoiding the sound insulation cavity are formed between the multiple steel sheets, and both ends of the steel sheets extend to the two layers of the aluminum-magnesium composite and are provided with support sheets.

[0007] As a preferred technical solution of the present invention, polystyrene particle insulation mortar is filled between the two aluminum-magnesium composite panels, the connecting piece 1 is welded and fixed to one of the supporting pieces by connecting ribs, a hole for passing an expansion screw is provided inside the connecting piece 1, and the expansion screw passes through one end of the connecting piece 1 and is locked by a nut.

[0008] As a preferred technical solution of the present invention, the vacuum insulation chamber includes a fiberglass vacuum shell, a vacuum barrier membrane sleeved on the outside of the fiberglass vacuum shell, and an elastic buffer layer sleeved on the outside of the vacuum barrier membrane. The outside of the fiberglass vacuum shell is also coated with a layer of epoxy resin coating.

[0009] As a preferred technical solution of the present invention, the interior of the aluminum frame is filled with vitrified microsphere insulation mortar, a countersunk hole is movably provided inside the connecting piece 2, a connecting nut is provided inside the countersunk hole 1, the connecting nut 1 includes a nut section 1, a gasket section 1, a wrench section 1 and a screw section, a gasket 1 located on one side of the gasket section 1 is sleeved on the nut section 1, and one end of the nut section 1 is threadedly sleeved with one end of the expansion screw passing through the connecting piece 1.

[0010] As a preferred technical solution of the present invention, the lightweight thermal insulation connecting plate is a glass magnesium plate, and a plurality of glue hanging grooves 1 are provided on one side of the lightweight thermal insulation connecting plate; the decorative plate is a bamboo fiber wall plate, and a plurality of glue hanging grooves 2 are provided on one side of the decorative plate, and the glue hanging grooves 2 are cross-staggered and opposite to the glue hanging grooves 1.

[0011] As a preferred technical solution of the present invention, movable cavities are provided inside the four corners of the lightweight thermal insulation connecting plate, the connecting piece three is movably provided inside the movable cavity, adjustment cavities are provided on both sides of the inner wall of the movable cavity, and pressure plates are provided on both sides of the connecting piece three, the pressure plate extends from one end of the connecting piece three to the inside of the adjustment cavity, and movable space is left on one side of the end of the pressure plate extending to the inside of the adjustment cavity and at its bottom and top.

[0012] As a preferred technical solution of the present invention, rubber pads are arranged on both sides of the pressure plate through springs, and a connecting nut 2 is arranged inside the connecting piece 3, and one end of the connecting nut 2 is threadedly connected to one end of the screw segment.

[0013] As a preferred technical solution of the present invention, the decorative panel is bonded to one side of the lightweight thermal insulation connecting panel by EVA hot melt adhesive, and one side of the decorative panel is coated with a nano titanium dioxide coating.

[0014] Compared with the prior art, the present invention provides a composite vacuum insulation decorative wall panel, which has the following beneficial effects: 1. After the composite vacuum insulation decorative wall panel and the sound insulation and fireproof panel are installed, one layer, two layers or two or more layers of vacuum insulation panels can be installed. Users can adjust the number of vacuum insulation panels according to their needs to adjust the insulation effect, or directly connect the lightweight insulation connecting panel to the sound insulation and fireproof panel. The modular design allows users to match modular wall panels of different thicknesses and insulation properties according to their needs, making the modular wall panels more convenient to process. The modular wall panels can be produced using a set of molds, which greatly reduces the processing cost, meets economic benefits, and has broad application prospects.

[0015] 2. For the composite vacuum insulation decorative wall panel, when tightening the connecting nut 2 and the connecting nut 1 with a socket wrench, do not tighten it too much first. Use a rubber hammer to knock the end of the lightweight insulation connecting plate. The lightweight insulation connecting plate moves slightly through the movable cavity, the adjustment cavity and the space between the connecting piece 3 and the pressure plate, so that the two adjacent lightweight insulation connecting plates in the left and right directions or the up and down directions are closer together, the gap is reduced, and there is no need to fill the seam materials later, which further ensures the aesthetics of the modular wall panel after installation.

[0016] 3. The composite vacuum insulation decorative wall panel, the decorative panel is bonded to one side of the lightweight insulation connecting plate by EVA hot melt adhesive. This decorative panel installation method makes the decorative panel removable. When the surface of the decorative panel is damaged or needs to be replaced with a decorative panel of a different color or pattern, the decorative panel can be separated from the lightweight insulation connecting plate by heating the position corresponding to the EVA hot melt adhesive on one side of the decorative panel to soften the EVA hot melt adhesive, which greatly reduces the replacement cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a composite vacuum insulation decorative wall panel proposed by the present invention; Figure 2 A structural cross-sectional view of a connector of a composite vacuum insulation decorative wall panel proposed by the present invention; Figure 3A schematic diagram of a rightward adjustment structure of a lightweight thermal insulation connecting plate of a composite vacuum thermal insulation decorative wall panel proposed by the present invention; Figure 4 A schematic diagram of a leftward adjustment structure of a lightweight thermal insulation connecting plate of a composite vacuum thermal insulation decorative wall panel proposed by the present invention; Figure 5 A cross-sectional view of the structure of a vacuum insulation panel of a composite vacuum insulation decorative wall panel proposed by the present invention; Figure 6 A cross-sectional view of the structure of a lightweight thermal insulation connecting plate of a composite vacuum thermal insulation decorative wall panel proposed by the present invention; Figure 7 A schematic diagram of the support structure of a composite vacuum insulation decorative wall panel proposed by the present invention; Figure 8 A cross-sectional view of the active cavity structure of a composite vacuum insulation decorative wall panel proposed by the present invention; Fig. 9 This is a schematic diagram of the rotating state of the connecting member three of the composite vacuum insulation decorative wall panel proposed by the present invention inside the active cavity.

[0018] In the figure: 1. Modular wall panel; 11. Sound insulation and fireproof board; 111. Aluminum-magnesium composite board; 112. Connector 1; 113. Sound insulation cavity; 114. Support member; 115. Steel sheet; 116. Support sheet; 117. Polystyrene particle insulation mortar; 118. Connecting rib; 12. Vacuum insulation board; 121. Aluminum frame; 122. Connector 2; 1221. Countersunk hole 1; 1222. Connecting nut 1; 1223. Nut segment 1; 1224. Gasket segment 1; 1225. Wrench 1; 1226. Screw segment; 1227. Gasket 1; 123. Vacuum insulation cavity; 12 4. FRP vacuum shell; 125. Vacuum barrier film; 126. Elastic buffer layer; 127. Vitrified microsphere insulation mortar; 13. Lightweight insulation connecting plate; 131. Connector three; 132. Glue hanging groove one; 133. Movable cavity; 1331. Adjustment cavity; 134. Press plate; 135. Spring; 136. Rubber pad; 137. Connecting nut two; 1371. Nut segment two; 1372. Gasket segment two; 1373. Lever means two; 1374. Gasket two; 14. Decorative plate; 141. Glue hanging groove two; 142. Nano titanium dioxide coating; 15. Expansion screw. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-9 A composite vacuum insulation decorative wall panel comprises a modular wall panel 1, wherein the modular wall panel 1 comprises a sound insulation and fireproof panel 11, a vacuum insulation panel 12, a lightweight thermal insulation connecting panel 13 and a decorative panel 14, wherein one side of the sound insulation and fireproof panel 11 is detachably connected with at least one layer of the vacuum insulation panel 12, the side of the vacuum insulation panel 12 away from the sound insulation and fireproof panel 11 is detachably connected with the lightweight thermal insulation connecting panel 13, and the side of the lightweight thermal insulation connecting panel 13 away from the vacuum insulation panel 12 is connected with the decorative panel 14.

[0021] The sound insulation and fireproofing board 11 is installed on the wall by expansion screws 15. The sound insulation and fireproofing board 11 includes two layers of aluminum-magnesium composite panels 111. Connectors 112 are provided at the four corners of the two layers of aluminum-magnesium composite panels 111. A multi-layer sound insulation cavity 113 is provided between the two layers of aluminum-magnesium composite panels 111.

[0022] The vacuum insulation panel 12 comprises an aluminum frame 121 . Four corners of the aluminum frame 121 are provided with second connectors 122 for docking with the first connector 112 . Multiple layers of crisscross vacuum insulation cavities 123 are provided inside the aluminum frame 121 .

[0023] Connecting pieces 3 131 are disposed inside the four corners of the lightweight heat-insulating connecting plate 13 for docking with connecting piece 2 122 .

[0024] As a specific technical solution of this embodiment, the sound insulation cavity 113 is elliptical, the positions of two adjacent layers of sound insulation cavities 113 are staggered, and the distance between the multiple layers of sound insulation cavities 113 increases gradually toward the vacuum insulation panel 12.

[0025] In this embodiment, the sound absorption characteristics of the elliptical sound insulation cavity 113 are better than those of the circular cavity. Under the same perforation rate, the resonant frequency of the elliptical sound insulation cavity 113 is lower, and the greater the flattening, the lower the resonant frequency, so that the elliptical sound insulation cavity 113 can achieve better sound absorption effect in a wider frequency range, and at the same time has more optimized space, which meets the requirement that the sound elimination frequency of the covering layer develops in the direction of broadband; increasing the wall thickness of the sound insulation cavity 113 can effectively improve the isolation effect of low-frequency sound. The isolation of low-frequency sound mainly depends on the mass and density of the material. The increase in wall thickness means an increase in mass per unit area, thereby enhancing the barrier ability to low-frequency sound. The isolation of high-frequency sounds is less dependent on wall thickness, and can be effectively isolated even if the wall thickness is thin. If the wall thickness between the multiple layers of sound insulation cavities 113 is designed to be the same and thick, this will bring unnecessary weight and cost increase to the sound insulation and fireproof board 11. The method of increasing the wall thickness of the multiple layers of sound insulation cavities 113 in sequence can effectively control the overall thickness of the sound insulation and fireproof board 11, reduce the weight and manufacturing cost of the sound insulation and fireproof board 11, and at the same time effectively isolate low-frequency sounds and high-frequency sounds. The positions of two adjacent layers of sound insulation cavities 113 are staggered. This design method can effectively improve the structural strength of the sound insulation and fireproof board 11, and effectively improve the compression resistance.

[0026] As a specific technical solution of this embodiment, a multi-layer support member 114 is further arranged between the two layers of aluminum-magnesium composite panels 111. The support member 114 is welded by multiple bent steel sheets 115. Grooves for avoiding the sound insulation cavity 113 are formed between the multiple steel sheets 115, and both ends of the steel sheets 115 extend to the two layers of aluminum-magnesium composite and are provided with support sheets 116.

[0027] In this embodiment, the setting of the support member 114 can effectively shape the space between the two layers of aluminum-magnesium composite panels 111, the support space is not easy to collapse, and the two ends of the sound insulation cavity 113 are open. By arranging an elliptical mold between the two layers of aluminum-magnesium composite panels 111 in advance, and then filling the polystyrene particle insulation mortar 117, the elliptical mold is pulled out after molding to form the sound insulation cavity 113. The grooves formed between the multiple steel sheets 115 can effectively support the surroundings of the sound insulation cavity 113, so that when the sound insulation and fireproof board 11 is under pressure, the pressure can be evenly shared by the multiple steel sheets 115, further improving the overall structural strength of the sound insulation and fireproof board 11.

[0028] As a specific technical solution of this embodiment, polystyrene particle insulation mortar 117 is filled between the two aluminum-magnesium composite panels 111, the connecting piece 112 is welded and fixed to one of the supporting pieces 114 through a connecting rib 118, and a hole for passing the expansion screw 15 is provided inside the connecting piece 112, and the expansion screw 15 passes through one end of the connecting piece 112 and is locked by a nut.

[0029] In this embodiment, the polystyrene particle insulation mortar 117 has a low thermal conductivity and can effectively block heat transfer, reduce indoor heat loss in winter, and block external high temperature in summer, thereby maintaining a stable indoor temperature. The connector 112 is welded and fixed to one of the supports 114 through a connecting rib 118. This design method can effectively ensure the stability of the connector 112 and is not easy to fall off from the four corners of the sound insulation and fireproof board 11. When assembling the modular wall panel 1, first measure the distance between the inner holes of two adjacent connectors 112, and insert the expansion screw 15 at the corresponding position on the wall. The exposed part of the expansion screw 15 is longer than the width of the connector 112. The expansion screw 15 passes through one end of the connector 112 and is covered with a nut and a gasket. A sink groove for accommodating the nut and the gasket is provided on one side of the connector 112. The sound insulation and fireproof board 11 can be fixed to the wall by the nut and the gasket. It is driven by a socket wrench, which can be turned manually or by an electric wrench. The assembly efficiency can be greatly improved by driving with an electric wrench. After the sound insulation and fireproof board 11 is installed, one layer, two layers or two or more layers of vacuum insulation board 12 can be installed. Users can adjust the number of vacuum insulation boards 12 according to their needs, thereby adjusting the insulation effect. The lightweight thermal insulation connecting board 13 can also be directly connected to the sound insulation and fireproof board 11. The modular design allows users to match modular wall panels 1 with different thicknesses and thermal insulation properties according to their needs, making the modular wall panels 1 more convenient to process. The modular wall panels 1 produced by the same set of molds only need to adjust the number of vacuum insulation boards 12 to meet the needs of users with different thickness requirements. There is no need to use another set of molds to manufacture sound insulation and fireproof boards 11 of different thicknesses, which greatly reduces the processing cost, meets economic benefits, and has broad application prospects.

[0030] As a specific technical solution of this embodiment, the vacuum insulation chamber 123 includes a fiberglass vacuum shell 124, a vacuum barrier membrane 125 sleeved on the outside of the fiberglass vacuum shell 124, and an elastic buffer layer 126 sleeved on the outside of the vacuum barrier membrane 125. The outside of the fiberglass vacuum shell 124 is also coated with a layer of epoxy resin coating.

[0031] In this embodiment, since the vacuum chamber is in a vacuum state and multiple layers are required, a prefabricated vacuum insulation chamber 123 is arranged in order inside the aluminum frame 121, and then the glass bead insulation mortar 127 is filled inside the aluminum frame 121. After the glass bead insulation mortar 127 is cured, the vacuum insulation chamber 123 is buried inside it, which can achieve excellent insulation effect. The glass fiber reinforced plastic has excellent corrosion resistance, heat resistance and mechanical strength, and is suitable for use in a cement mortar environment. The vacuum barrier film 125 is wrapped around the outside of the glass fiber reinforced plastic vacuum shell 124, further ensuring that the glass fiber reinforced plastic vacuum shell 1 The elastic buffer layer 126 is a rubber sleeve, and the setting of the elastic buffer layer 126 can absorb the shrinkage and expansion stress of the glass bead insulation mortar 127 during solidification, thereby avoiding damage to the glass fiber reinforced plastic vacuum shell 124 during solidification of the glass bead insulation mortar 127, and ensuring the stability of the vacuum insulation cavity 123. The epoxy resin coating has excellent alkali resistance and heat resistance to isolate the glass bead insulation mortar 127, thereby avoiding direct contact between the glass bead insulation mortar 127 and the glass fiber reinforced plastic vacuum shell 124, and improving the corrosion resistance of the glass fiber reinforced plastic vacuum shell 124.

[0032] As a specific technical solution of this embodiment, the interior of the aluminum frame 121 is filled with glass bead insulation mortar 127, the interior of the connecting piece 122 is movably provided with a countersunk hole 1221, the interior of the countersunk hole 1221 is provided with a connecting nut 1222, the connecting nut 1222 includes a nut section 1223, a gasket section 1224, a wrench section 1225 and a screw section 1226, the nut section 1223 is provided with a gasket 1227 located on one side of the gasket section 1224, and one end of the nut section 1223 is threadedly connected with one end of the expansion screw 15 passing through the connecting piece 112.

[0033] In this embodiment, the connector 112, the connector 2 122 and the connector 3 131 are all made of metal or engineering plastics. The connecting nut 1222 can be taken out from the inside of the connector 2 122. When in use, the countersunk hole 1221 is aligned with the expansion nut through one end of the connector 112 and inserted, and then the connecting nut 1222 with the gasket 1227 installed is inserted into the inside of the countersunk hole 1221, so that the nut section 1223 is connected to the expansion screw 15, and the socket wrench is used to cover the wrench. On the first segment 1225, turn the connecting nut 1222 so that the connecting nut 1222 flattens the gasket 1227 and presses the vacuum insulation board 12 together with the sound insulation and fireproof board 11 to complete the assembly of the vacuum insulation board 12. After a layer of vacuum insulation board 12 is assembled, the vacuum insulation board 12 can be further installed or the lightweight insulation connecting board 13 can be directly installed. After a layer of vacuum insulation board 12 is assembled, the screw segment 1226 protrudes to one side of the connecting piece 2 122. The method of installing the vacuum insulation board 12 is similar to that of the vacuum insulation board 11. The connection method of the heat insulation board 12 and the sound insulation and fireproof board 11 is the same. After the glass bead insulation mortar 127 is cured, the connecting piece 122 is fixed inside the aluminum frame 121. The glass bead insulation mortar 127 is composed of glass beads and cement and other gelling materials. It not only has excellent fireproof and thermal insulation properties, but also has good adhesion and weather resistance, and can effectively prevent moisture penetration, thereby improving the thermal insulation effect. In addition, the compressive strength of the glass bead insulation mortar 127 is also very high, which further enhances its crack resistance. When the empty insulation board 12 is hit laterally, the side wall of the aluminum frame 121 squeezes the solidified glass bead insulation mortar 127 inside, and the other side wall of the aluminum frame 121 contacts the sound insulation and fireproof board 11. At the same time, the aluminum frame 121 also transfers the pressure to the support sheet 116, which is then dispersed to the multiple steel sheets 115 by the support sheet 116. This design allows the pressure to be quickly and evenly dispersed, and the compression-resistant structures of the sound insulation and fireproof board 11 and the vacuum insulation board 12 cooperate with each other and complement each other, thereby improving the overall compression resistance of the modular wall panel 1.

[0034] As a specific technical solution of this embodiment, the lightweight thermal insulation connecting plate 13 is a glass magnesium plate, and one side of the lightweight thermal insulation connecting plate 13 is provided with a plurality of glue hanging grooves 132. The decorative plate 14 is a bamboo fiber wallboard, and one side of the decorative plate 14 is provided with a plurality of glue hanging grooves 141. The glue hanging grooves 141 and the glue hanging grooves 132 are staggered and opposite to each other in a cross shape.

[0035] In this embodiment, the glass magnesium board has good waterproof performance, will not deform or mold even in a humid environment, has high compressive strength and flexural strength, is not easy to crack or deform, has low density, is light in weight, is easy to transport and install, has low thermal conductivity, has good thermal insulation performance, can effectively reduce noise transmission, is made of inorganic materials, does not contain formaldehyde, benzene and other harmful substances, has an easy surface processing, can be cut, drilled, nailed, simple and convenient construction, the shape of the first glue hanging groove 132 and the second glue hanging groove 141 are the same, but the arrangement position direction is different, the second glue hanging groove 141 and the first glue hanging groove 132 are staggered and opposite to each other in a cross shape. This design can effectively improve the stability of the cured EVA hot melt adhesive after it is filled in the glue groove 132 and the glue groove 2 141 and solidified, and it is not easy to fall off from the inside of the glue groove 132 and the glue groove 2 141, thereby ensuring the bonding stability between the decorative plate 14 and the lightweight thermal insulation connecting plate 13. In addition, the opening width of the glue groove 132 and the glue groove 2 141 is smaller than the width inside the groove. This design further prevents the cured EVA hot melt adhesive from falling off from the inside of the glue groove 132 and the glue groove 2 141.

[0036] As a specific technical solution of this embodiment, the four corners of the lightweight thermal insulation connecting plate 13 are each provided with an active cavity 133, the connecting piece 3 131 is movably arranged inside the active cavity 133, and an adjustment cavity 1331 is arranged on both sides of the inner wall of the active cavity 133, and a pressure plate 134 is arranged on both sides of the connecting piece 3 131, and the pressure plate 134 extends to the inside of the adjustment cavity 1331 at one end away from the connecting piece 3 131 and the pressure plate 134 extends to one side of the end inside the adjustment cavity 1331 and the bottom and top of the pressure plate 134, and both sides of the pressure plate 134 are provided with an active space. A rubber pad 136 is provided on both sides through a spring 135, a connecting nut 137 is provided inside the connecting piece 131, one end of the connecting nut 137 is threadedly sleeved with one end of the screw segment 1226, a countersunk hole 2 is provided inside the connecting piece 131, the connecting nut 137 includes a nut segment 1371, a gasket segment 1372 and a wrench segment 1373, a gasket 1374 located on one side of the gasket segment 1372 is sleeved on the nut segment 1371, and one end of the nut segment 1371 is threadedly sleeved with one end of the screw segment 1226.

[0037] In this embodiment, the operation mode of the connecting nut 2 137 is the same as that of the connecting nut 1 1222. There is no screw segment 1226 on the connecting nut 2 137. The lightweight thermal insulation connecting plate 13 is a layer directly connected to the decorative plate 14. There is no need to connect the screw segment 1226. The nut segment 2 1371 can be connected to the screw segment 1226 directly by driving the wrench means 2 1373 with the socket wrench, so that the lightweight connecting plate is tightly attached to the vacuum insulation panel 12. The active cavity 133 cooperates with the connecting piece 3 131. When the modular wall panel 1 is connected to the wall, it may be affected by the flatness of the wall. During the installation of the two adjacent modular wall panels 1, the two sound insulation and fireproof panels 11 can still be well aligned. With the installation of the vacuum insulation panel 12 and the lightweight thermal insulation connecting plate 13, a large gap will appear between the two adjacent lightweight thermal insulation connecting plates 13. In severe cases, it is necessary to fill the seam material later, which affects the appearance. The adjustable lightweight insulation The thermal insulation connecting plate 13 can effectively solve the above problem. When the connecting nut 2 137 is turned by the socket wrench and locked with the connecting nut 1 1222, do not tighten it too much first. Use a rubber hammer to knock the end of the lightweight thermal insulation connecting plate 13, and the lightweight thermal insulation connecting plate 13 moves slightly through the space between the movable cavity 133, the adjustment cavity 1331 and the connecting piece 3 131 and the pressing plate 134, so that the two adjacent lightweight thermal insulation connecting plates 13 in the left and right directions or the up and down directions are further close to each other, reducing the gap. After the docking is completed, the connecting nut 2 137 is further tightened by the socket wrench, so that the lightweight thermal insulation connecting plate 13 and the vacuum insulation panel 12 are tightly locked, and finally the decorative panel 14 is glued on. Since the two adjacent lightweight thermal insulation connecting plates 13 are further close to each other, the two adjacent decorative panels 14 are also close to each other, and no large gap will be generated, and there is no need to fill the seam material later, which further ensures the aesthetics of the modular wall panel 1 after installation. Figure 8-9, the connecting piece 3 131 will drive the pressure plate 134 to slightly deflect inside the adjusting cavity 1331 with the torque used to rotate the lever means 2 1373, but is limited by the adjustable space between the adjusting cavity 1331 and the pressure plate 134, so that the pressure plate 134 will not completely separate from the inside of the pressure plate 134, thereby ensuring the stability of the connecting piece 3 131 and not affecting the position adjustment of the lightweight thermal insulation connecting plate 13. The rubber pads 136 on both sides of the pressure plate 134 are in contact with the inner wall of the adjusting cavity 1331, which can ensure the stability of the connecting piece 3 131 inside the active cavity 133, and will not move around when the user is not subjected to the external force of the connecting piece 3 131, thereby facilitating the connection between the connecting piece 3 131 and the connecting piece 2 122 docking, when the connecting nut 2 137 inside the connecting piece 3 131 is connected and locked with the screw segment 1226, the pressure plate 134 will further compress the rubber pad 136 on one side thereof to resist the inner wall of the movable cavity 133, so that the movable cavity 133 drives the lightweight thermal insulation connecting plate 13 to be close to the vacuum insulation panel 12, thereby ensuring the connection stability between the lightweight thermal insulation connecting plate 13 and the vacuum insulation panel 12, and the spring 135 continuously resists the rubber pad 136 to resist the inner wall of the adjusting cavity 1331. Compared with using the rubber pad 136 alone to resist the inner wall of the adjusting cavity 1331, the design of the spring 135 can effectively avoid the situation where the rubber pad 136 cannot effectively contact the inner wall of the adjusting cavity 1331 after being compressed and deformed.

[0038] As a specific technical solution of this embodiment, the decorative panel 14 is bonded to one side of the lightweight thermal insulation connecting panel 13 by EVA hot melt adhesive, and one side of the decorative panel 14 is coated with a nano titanium dioxide coating 142 .

[0039] In this embodiment, the nano titanium dioxide coating 142 has good self-cleaning and antibacterial functions due to its photocatalytic properties and super hydrophilicity. The EVA hot melt adhesive is a 100% solid fusible polymer that does not require solvents and does not contain water. It is solid at room temperature and becomes a liquid adhesive that can flow and has a certain viscosity after being heated and melted to a certain degree. The EVA hot melt adhesive can show good adhesion after heating, is safe and environmentally friendly, does not produce special or irritating odors, and has excellent bonding strength. Combined with the structural design of the glue hanging slot 132 and the glue hanging slot 2 141, it can be used in decoration. One side of the board 14 does not need to be completely coated with EVA hot melt adhesive, but only needs to be coated on the four corners or edges of one side of the decorative board 14. This installation method of the decorative board 14 makes the decorative board 14 removable. When the surface of the decorative board 14 is damaged or a decorative board 14 of a different color or pattern needs to be replaced, the position corresponding to the EVA hot melt adhesive on one side of the decorative board 14 is heated to soften the EVA hot melt adhesive, and then the decorative board 14 can be separated from the lightweight insulation connecting board 13. The separation operation is simple and quick, and there is no need to replace the entire sound insulation and fireproof board 11, so the use cost is greatly reduced.

[0040] In summary, after the composite vacuum insulation decorative wall panel and the sound insulation and fireproof panel 11 are installed, one layer, two layers or two or more layers of vacuum insulation panels 12 can be installed. Users can adjust the number of vacuum insulation panels 12 according to their needs to adjust the insulation effect, or directly connect the lightweight thermal insulation connecting panel 13 to the sound insulation and fireproof panel 11. The modular design allows users to match modular wall panels 1 with different thicknesses and insulation properties according to their needs, making the modular wall panels 1 more convenient to process. The modular wall panels 1 can be produced using a set of molds, which greatly reduces the processing cost, meets economic benefits, and has broad application prospects.

[0041] When the composite vacuum insulation decorative wall panel is locked by turning the connecting nut 2 137 and the connecting nut 1 1222 with a socket wrench, do not tighten it too much first. Use a rubber hammer to knock the end of the lightweight insulation connecting plate 13, and the lightweight insulation connecting plate 13 moves slightly through the movable cavity 133, the adjustment cavity 1331 and the space between the connecting piece 3 131 and the pressure plate 134, so that the two adjacent lightweight insulation connecting plates 13 in the left and right directions or the up and down directions are closer together, the gap is reduced, and there is no need to fill the seam material later, which further ensures the aesthetics of the modular wall panel 1 after installation.

[0042] The composite vacuum insulation decorative wall panel has a decorative panel 14 bonded to one side of a lightweight thermal insulation connecting panel 13 by EVA hot melt adhesive. This installation method of the decorative panel 14 makes the decorative panel 14 removable. When the surface of the decorative panel 14 is damaged or a decorative panel 14 of a different color or pattern needs to be replaced, the decorative panel 14 can be separated from the lightweight thermal insulation connecting panel 13 by heating a position corresponding to the EVA hot melt adhesive on one side of the decorative panel 14 to soften the EVA hot melt adhesive, thereby greatly reducing the replacement cost.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite vacuum insulation decorative wall panel, comprising a modular wall panel (1), characterized in that: The modular wall panel (1) comprises a sound insulation and fireproof panel (11), a vacuum insulation panel (12), a lightweight thermal insulation connecting panel (13) and a decorative panel (14); one side of the sound insulation and fireproof panel (11) is detachably connected to at least one layer of the vacuum insulation panel (12); a side of the vacuum insulation panel (12) away from the sound insulation and fireproof panel (11) is detachably connected to the lightweight thermal insulation connecting panel (13); and a side of the lightweight thermal insulation connecting panel (13) away from the vacuum insulation panel (12) is connected to the decorative panel (14); The sound insulation and fireproofing board (11) is installed on the wall surface by means of expansion screws (15), and the sound insulation and fireproofing board (11) comprises two layers of aluminum-magnesium composite boards (111), and connecting pieces (112) are provided on the four corners of the two layers of the aluminum-magnesium composite boards (111), and a multi-layer sound insulation cavity (113) is provided between the two layers of the aluminum-magnesium composite boards (111); The vacuum insulation panel (12) comprises an aluminum frame (121), four corners of the aluminum frame (121) are each provided with a second connector (122) for docking with the first connector (112), and the aluminum frame (121) is provided with multiple layers of crisscross vacuum insulation cavities (123); Connecting pieces three (131) are provided inside the four corners of the lightweight heat-insulating connecting plate (13) for butting against connecting piece two (122).

2. The composite vacuum insulation decorative wallboard according to claim 1, characterized in that: The sound insulation cavity (113) is elliptical in shape, the positions of two adjacent layers of the sound insulation cavity (113) are staggered, and the distance between the multiple layers of the sound insulation cavity (113) increases gradually in the direction of the vacuum insulation panel (12).

3. The composite vacuum insulation decorative wallboard according to claim 1, characterized in that: A multi-layer support member (114) is further provided between the two layers of the aluminum-magnesium composite plate (111), the support member (114) being formed by welding a plurality of bent steel sheets (115), a slot for avoiding the sound insulation cavity (113) is formed between the plurality of steel sheets (115), and both ends of the steel sheets (115) respectively extend to the two layers of the aluminum-magnesium composite and are provided with support sheets (116).

4. The composite vacuum insulation decorative wallboard according to claim 1, characterized in that: A polystyrene particle insulation mortar (117) is filled between the two aluminum-magnesium composite panels (111), the first connecting piece (112) and one of the supporting pieces (114) are fixed by welding via a connecting rib (118), a hole for passing an expansion screw (15) is provided inside the first connecting piece (112), and one end of the expansion screw (15) passes through the first connecting piece (112) and is locked via a nut.

5. The composite vacuum insulation decorative wallboard according to claim 1, characterized in that: The vacuum heat insulation cavity (123) comprises a glass fiber reinforced plastic vacuum shell (124), a vacuum barrier film (125) sleeved on the outside of the glass fiber reinforced plastic vacuum shell (124), and an elastic buffer layer (126) sleeved on the outside of the vacuum barrier film (125); the outside of the glass fiber reinforced plastic vacuum shell (124) is also coated with a layer of epoxy resin coating.

6. The composite vacuum insulation decorative wallboard according to claim 1, characterized in that: The interior of the aluminum frame (121) is filled with glass bead thermal insulation mortar (127); a countersunk hole (1221) is movably provided inside the second connecting piece (122); a connecting nut (1222) is provided inside the first countersunk hole (1221); the connecting nut (1222) comprises a nut section (1223), a gasket section (1224), a lever section (1225) and a screw section (1226); a gasket (1227) located on one side of the gasket section (1224) is sleeved on the nut section (1223); one end of the nut section (1223) is threadedly sleeved with one end of the expansion screw (15) passing through the connecting piece (112).

7. The composite vacuum insulation decorative wallboard according to claim 1, characterized in that: The lightweight thermal insulation connecting plate (13) is a glass magnesium plate, and one side of the lightweight thermal insulation connecting plate (13) is provided with a plurality of first glue hanging grooves (132). The decorative plate (14) is a bamboo fiber wall plate, and one side of the decorative plate (14) is provided with a plurality of second glue hanging grooves (141), and the second glue hanging grooves (141) are staggered and opposite to the first glue hanging grooves (132) in a cross shape.

8. The composite vacuum insulation decorative wallboard according to claim 7, characterized in that: Active cavities (133) are arranged inside the four corners of the lightweight heat-insulating connecting plate (13), the third connecting piece (131) is movably arranged inside the active cavity (133), and adjustment cavities (1331) are arranged on both sides of the inner wall of the active cavity (133), and pressure plates (134) are arranged on both sides of the third connecting piece (131), and one end of the pressure plate (134) away from the third connecting piece (131) extends to the inside of the adjustment cavity (1331), and active space is reserved on one side of the end of the pressure plate (134) extending to the inside of the adjustment cavity (1331) and at the bottom and top.

9. The composite vacuum insulation decorative wallboard according to claim 8, characterized in that: Rubber pads (136) are provided on both sides of the pressure plate (134) via springs (135), and a connecting nut (137) is provided inside the connecting piece (131), and one end of the connecting nut (137) is threadedly sleeved with one end of the screw segment (1226).

10. The composite vacuum insulation decorative wallboard according to claim 1, characterized in that: The decorative plate (14) is bonded to one side of the lightweight thermal insulation connecting plate (13) by means of EVA hot melt adhesive, and one side of the decorative plate (14) is coated with a nano titanium dioxide coating (142).

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