Waterproof heat-preservation backing composite board

Abstract

The waterproof heat-preservation backing composite plate comprises a base plate, the surface of the base plate is rough, and a waterproof bonding layer and a slurry hanging layer are sequentially compounded on the two faces of the base plate from inside to outside; the waterproof bonding layer fixes the slurry coating layer on the base plate, and the slurry coating layer is of a porous structure; according to the composite board, the heat preservation, sound insulation and waterproof performance of an extruded sheet is kept, the slurry hanging layer and the waterproof bonding layer are compounded, the waterproof capacity and the surface adhesion capacity of the slurry hanging layer and the waterproof bonding layer are integrated, and the overall performance is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of building decoration, more particularly to a waterproof heat preservation backing composite board. BACKGROUND

[0002] The backing plate is a building material commonly used in indoor decoration, which plays an indispensable role in ceiling, partition wall, wall decoration, wall waterproofing and other projects. The existing backing plate includes gypsum board, osb board, metal plate, various plastic plates, etc. Among them, the extruded board is widely used due to its excellent heat preservation and waterproof performance, high sound insulation capacity, good pressure bearing capacity, low cost and other advantages. However, the smooth surface of the extruded board has low viscosity of the mortar, which is not easy to connect with the external wallboard, and the extruded board is brittle and easy to be damaged, and is prone to deformation under the influence of temperature. The above shortcomings cause inconvenience in use and have a great impact on the decoration quality.

[0003] Therefore, it is necessary to provide a composite backing plate that optimizes the shortcomings of the extruded board while retaining its heat preservation and waterproof features. SUMMARY

[0004] To solve the above problems, the utility model provides a waterproof heat preservation backing composite board, which comprises a substrate, the surface of the substrate is rough, and waterproof adhesive layers and mortar layers are sequentially compounded on both sides of the substrate from inside to outside. The waterproof adhesive layer fixes the mortar layer to the substrate, and the mortar layer has a porous structure.

[0005] Further, the mortar layer is any one of a mesh cloth and a polyurethane inorganic cloth.

[0006] Further, the substrate is a roughened extruded board. The roughened extruded board can increase the roughness of the surface and improve the adhesion to waterproof mortar. The waterproof adhesive layer is formed by the solidification of waterproof mortar. The thickness of the waterproof mortar should not be too thick, otherwise it may crack.

[0007] The roughened surface of the extruded board, combined with waterproof mortar and mesh cloth, improves the mortar adhesion capacity of the surface. It not only retains the heat preservation and sound insulation performance of the extruded board, but also allows the surface of the board to be bonded with adhesives, mortar, cement and other adhesives, making it possible to modify the composite board.

[0008] Further, the mortar layer is also connected to a decorative layer, which is any one of a ceramic tile, a wall cloth and a wallpaper. The decorative layer can be directly connected to the composite board, so that the surface of the board also has a decorative function. It can be used as a backing plate and an external wallboard, improving the practicability.

[0009] Further, a plurality of reinforcing ribs are arranged between the substrate and the waterproof adhesive layer. The reinforcing ribs are hard and are arranged in a longitudinal and transverse staggered manner on the surface of the substrate. The reinforcing ribs and the substrate are connected in an embedded manner.

[0010] Because the extruded sheet is fragile and easy to be damaged, the reinforcing rib can protect the extruded sheet, the staggered distribution of the reinforcing rib can further increase the adhesion of the adhesive on the surface of the substrate, the gap between the reinforcing ribs can provide a certain expansion space for the deformation of the extruded sheet after heating, preventing the deformation from affecting other sheet layers, the reinforcing rib can also have a certain plastic effect on the extruded sheet, reducing the degree of deformation, and can also increase the bearing capacity.

[0011] Further, the substrate is provided with a plurality of protrusions, the shape of the protrusion is two opposite triangles, the reinforcing rib is provided with a hole matched with the protrusion, and the protrusion and the hole are inserted and bonded after insertion.

[0012] The reinforcing rib and the substrate are first inserted and then bonded, so that the connection is firm, the special-shaped protrusion can make the contact area of the substrate and the reinforcing rib larger, and the recessed protrusion is filled when the protrusion is inserted, the reinforcing rib can support and protect the protrusion, preventing the protrusion from being damaged, and making up for the disadvantage of the fragility of the extruded sheet.

[0013] Further, the side surface of the substrate is provided with a connecting piece, the connecting piece is fixed with the reinforcing rib, the connecting piece includes an insertion slot and a plug body, the insertion slot and the plug body are respectively arranged on the two side surfaces of the substrate, and the insertion slot and the plug body of adjacent two substrates are connected.

[0014] Because the extruded sheet is fragile and easy to be damaged, the reinforcing rib can protect the extruded sheet, the staggered distribution of the reinforcing rib can further increase the adhesion of the adhesive on the surface of the substrate, the gap between the reinforcing ribs can provide a certain expansion space for the deformation of the extruded sheet after heating, preventing the deformation from affecting other sheet layers, the reinforcing rib can also have a certain plastic effect on the extruded sheet, reducing the degree of deformation, and can also increase the bearing capacity.

[0015] Further, the end surface of the insertion slot is flush with the side surface of the substrate, and the plug body and the insertion slot are inserted in interference fit.

[0016] The two backer boards are connected by insertion, and the two backer boards do not need to leave a mounting gap, and after installation, the two backer boards are in close contact, which has little effect on the overall heat preservation and sound insulation performance, but the bearing capacity of the connection is relatively low, which is suitable for the working condition that the backer board has low pressure requirement.

[0017] Alternatively, the insertion slot protrudes from the side surface of the substrate, the insertion slot includes a plurality of arc pieces, the arc pieces are fixed to the reinforcing rib at one end and extend in a diverging manner at the other end, forming a circular truncated cone structure, the outer wall of the arc piece is provided with a screw thread, and a nut is sleeved outside the insertion slot, and the plug body and the insertion slot are inserted and then the nut is rotated to connect and fasten the two.

[0018] With the above connection mode, the connection firmness is high, the connection place has strong weighing capacity, but there is a gap required for installation, which has certain influence on sound insulation and waterproof performance, and needs to be used with sealing strip, but meanwhile, the gap reserved can be used as reserved space for thermal expansion, reducing the harm caused by thermal expansion.

[0019] Further, the sealing strip is attached at the connecting gap of the substrate, further sealing the gap, and compensating for the influence of the gap on waterproof and sound insulation effects.

[0020] The utility model has the advantages that:

[0021] (1) The composite board of the utility model maintains the heat preservation, sound insulation and waterproof performance of the extruded sheet, and further composites the plaster hanging layer and the waterproof adhesive layer, integrates the waterproof capacity and surface adhesion capacity of the two, and greatly improves the overall performance.

[0022] (2) The utility model maximally reduces the drawbacks of the extruded sheet itself through the setting of the reinforcing rib, and improves the overall practicability.

[0023] (3) The backing plate of the utility model can be spliced and arranged, greatly simplifies the installation process of the backing plate, makes installation more convenient, and improves work efficiency. DRAWINGS

[0024] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application.

[0025] Figure 1 It is a whole structure schematic view of the utility model embodiment;

[0026] Figure 2 It is a reinforcing rib distribution schematic view of the utility model embodiment;

[0027] Figure 3 It is a connecting piece structure schematic view of the utility model embodiment;

[0028] Figure 4 It is the utility model Figure 3 A enlarged view;

[0029] Figure 5 It is a connecting piece schematic view of another utility model embodiment.

[0030] In the drawings: 1 - substrate, 11 - protrusion, 2 - waterproof adhesive layer, 3 - plaster hanging layer, 4 - reinforcing rib, 41 - gap, 5 - connecting piece, 51 - plug-in slot, 52 - plug body, 53 - nut. DETAILED DESCRIPTION

[0031] In order to make the overall idea of the present application clearer, specific embodiments will be described in detail below with reference to the accompanying drawings.

[0032] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced without the specific details. In other instances, well-known methods have not been described in detail in order not to unnecessarily obscure aspects of the present application.

[0033] In addition, in the description of the present application, it needs to be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the positional or relative relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0034] In the present application, unless specifically defined and limited otherwise, the terms "mount", "connect", "connect", "fix", and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0036] As Figure 1 A waterproof thermal insulation backing composite board, as shown in the drawings, comprises a substrate 1, the surface of the substrate 1 is rough, and a waterproof adhesive layer 2 and a plaster layer 3 are sequentially compounded from the inside to the outside on both sides of the substrate 1; the waterproof adhesive layer 2 fixes the plaster layer 3 to the substrate 1, and the plaster layer 3 has a porous structure.

[0037] According to the structure of the layer 3, the layer 3 is a mesh cloth; another embodiment, the layer 3 is a polyurethane inorganic cloth; the mesh cloth and the polyurethane inorganic cloth are both porous structures, and the structures are beneficial to the adhesion of the mortar passing through the pores, and the adhesion strength is high after the mortar is solidified.

[0038] In one embodiment, the layer 3 is further connected with a decorative layer, the decorative layer is any one of a ceramic tile, a wall cloth and a wallpaper, the decorative layer and the composite board can be directly connected together, the surface of the board also has a decorative function, that is, the board can be used as a backing board and an external wall board, and the practicability is improved.

[0039] In one embodiment, the substrate 1 is a roughened extruded board, the roughened extruded board can increase the roughness of the surface and the adhesion to the waterproof mortar; the waterproof adhesion layer 2 is formed by the solidification of the waterproof mortar, and the thickness of the waterproof mortar is not easy to be too thick, and the too thick thickness is easy to cause cracking.

[0040] The roughened surface of the extruded board is matched with the waterproof mortar and the mesh cloth to improve the mortar adhesion capacity of the surface, the heat and sound insulation performance of the extruded board is retained, and the surface of the board can be bonded with adhesives, mortar, cement and other adhesives, so that the composite board has the possibility of modification.

[0041] Further, as shown in Figure 2 , the substrate 1 and the waterproof adhesion layer 2 are provided with a plurality of reinforcing ribs 4, the reinforcing ribs 4 are hard structures and are distributed in a longitudinal and transverse staggered manner on the surface of the substrate 1, and the reinforcing ribs 4 and the substrate 1 are embeddedly connected.

[0042] Since the extruded board is high in brittleness and is easy to be damaged, the reinforcing ribs 4 can protect the extruded board, the staggered distribution of the reinforcing ribs 4 forms gaps 41, which can further increase the adhesion of the adhesives on the surface of the substrate 1, in addition, the extruded board is easy to deform and bulge after being heated, the gaps 41 between the reinforcing ribs 4 can provide a certain expansion space for the deformation, prevent the deformation from affecting other board layers, the reinforcing ribs 4 can also have a plastic effect on the extruded board, reduce the deformation degree, and increase a certain bearing capacity.

[0043] In one embodiment, as shown in Figure 2 , the substrate 1 is provided with a plurality of protrusions 11, the protrusions 11 are in the shape of two opposite triangles, the reinforcing ribs 4 are provided with holes matched with the protrusions 11, and the protrusions 11 and the holes are inserted and bonded after the insertion.

[0044] The insertion and bonding between the reinforcing ribs 4 and the substrate 1 make the connection firm, the special-shaped protrusions 11 can make the contact area of the substrate 1 and the reinforcing ribs 4 larger, and the recessed protrusions 11 are filled by the reinforcing ribs 4 during the insertion, the reinforcing ribs 4 can support and protect the protrusions 11, prevent the protrusions 11 from being damaged, and make up for the disadvantage of high brittleness of the extruded board.

[0045] In one embodiment, as shown in Figures 3-5 The side of the substrate 1 is provided with a connecting piece 5, which is fixed with the reinforcing rib 4. The connecting piece 5 includes a plug-in slot 51 and a plug body 52, which are respectively arranged on the two side surfaces of the substrate 1. The plug-in slot 51 and the plug body 52 of the adjacent two substrates 1 are connected.

[0046] Since the extruded plate is easy to be damaged, if the connecting piece 5 is directly connected to the extruded plate, the area of the connecting piece 5 is small when the connecting piece 5 is connected, so that the additional pressure on the extruded plate is large after being stressed, and the connection between the extruded plate and the connecting piece 5 is easily damaged. However, the reinforcing rib 4 has a hard structure, so that the connecting piece 5 is arranged on the reinforcing rib 4, which can prevent damage to the extruded plate and increase the hardness of the reinforcing rib, so that the performance of the reinforcing rib is stronger, and the stability of the connection is improved.

[0047] In one specific embodiment, as shown in Figure 4 The end surface of the plug-in slot 51 is flush with the side surface of the substrate 1, and the plug body 52 is inserted into the plug-in slot 51 in an interference fit.

[0048] The two backer boards are connected by the plug-in mode, and the two backer boards do not need to leave a mounting gap. After installation, the two backer boards are in close contact, which has little effect on the overall heat preservation and sound insulation performance, but the bearing capacity of the connection is relatively low, which is suitable for the working conditions where the backer board has low pressure requirement.

[0049] In another specific embodiment, as shown in Figure 5 The plug-in slot 51 is arranged protruding from the side surface of the substrate 1. The plug-in slot 51 includes a plurality of arc pieces, which are fixed to the reinforcing rib 4 at one end and extend in a diverging manner at the other end, forming a circular truncated cone structure. The outer wall of the arc piece is provided with a screw thread, and a nut 53 is sleeved on the outside of the plug-in slot 51. After the plug body 52 is inserted into the plug-in slot 51, the nut 53 is rotated to connect and fasten the two.

[0050] The above connection mode has high connection firmness and strong bearing capacity of the connection, but there is a gap required for installation, which has certain influence on sound insulation and waterproof performance, and needs to be used with a sealing strip. However, the gap reserved can also be used as a reserved space for thermal expansion, which can reduce the damage caused by thermal expansion.

[0051] Further, a sealing strip is attached to the connecting gap of the substrate 1 to further seal the gap and compensate for the influence of the gap on the waterproof and sound insulation effects.

[0052] The places not mentioned in the present application can be realized by using or referring to the existing technology.

[0053] Each embodiment in the specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other. Each embodiment mainly describes the differences from other embodiments.

[0054] The above descriptions are only some embodiments of the present application and are not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of claims of the present application.

Claims

1. A waterproof and thermally insulating composite backing board, characterized in that, The substrate includes a substrate with a rough surface. A waterproof adhesive layer and a coating layer are sequentially laminated on both sides of the substrate from the inside out. The waterproof adhesive layer fixes the coating layer to the substrate, and the coating layer has a porous structure.

2. The waterproof and thermal insulation backing composite board according to claim 1, characterized in that, The coating layer is either a mesh fabric or a polyurethane inorganic fabric.

3. The waterproof and thermal insulation backing composite board according to claim 1, characterized in that, The substrate is a roughened extruded polystyrene board; the waterproof adhesive layer is formed by the solidification of waterproof mortar.

4. The waterproof and thermal insulation backing composite board according to claim 1, characterized in that, The plaster layer is also connected to a decorative layer, which can be any one of ceramic tile, wall covering, or wallpaper.

5. The waterproof and thermal insulation backing composite board according to claim 3, characterized in that, Multiple reinforcing ribs are provided between the substrate and the waterproof adhesive layer. The reinforcing ribs are rigid structures and are distributed crisscrossingly on the surface of the substrate. The reinforcing ribs and the substrate are embedded in each other.

6. The waterproof and thermal insulation backing composite board according to claim 5, characterized in that, The substrate has multiple protrusions, each protruding in the shape of two opposing triangles. The reinforcing ribs have holes that match the protrusions, and the protrusions and holes are then bonded together after being inserted.

7. The waterproof and thermal insulation backing composite board according to claim 5, characterized in that, The substrate has a connector on its side, which is fixed to the reinforcing rib. The connector includes a slot and a plug. The slot and the plug are respectively located on the two sides of the substrate, and the slots and plugs of two adjacent substrates are connected.

8. The waterproof and thermal insulation backing composite board according to claim 7, characterized in that, The end face of the insertion slot is flush with the side of the substrate, and the plug and the insertion slot are inserted with an interference fit.

9. A waterproof and thermal insulation backing composite board according to claim 7, characterized in that, The insertion groove protrudes from the side of the substrate and includes multiple arc plates. The multiple arc plates are distributed circumferentially, with one end fixed to the reinforcing rib and the other end extending in a divergent manner to form a frustum structure. The outer wall of the arc plate is provided with threads, and a nut is sleeved on the outside of the insertion groove. After the plug and the insertion groove are inserted, the nut is rotated to make the connection between the two secure.

10. A waterproof and thermal insulation backing composite board according to claim 8 or 9, characterized in that, A sealing strip is affixed to the joint gap of the substrate.

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