Heat preservation and decoration integrated plate and connecting method thereof

Abstract

The invention relates to the technical field of heat preservation and decoration integrated plates, and discloses a heat preservation and decoration integrated plate connecting method, a heat preservation and decoration integrated plate comprises a bottom plate, a heat preservation layer, a decoration panel and a mechanical connecting piece, and the mechanical connecting piece comprises an expansion nail and an expansion bolt. The heat preservation and decoration integrated plate connecting method comprises the steps that a decoration panel, a heat preservation layer and a bottom plate are sequentially glued through an adhesive and then placed on a pressing machine to be fixed and pressed; a drill bit is used for punching from the bottom plate, the drill bit sequentially penetrates through the bottom plate and the heat preservation layer and is drilled into the decoration panel by a certain depth, the drill bit does not penetrate through the decoration panel, and a mounting hole is punched; the expansion bolt is placed in the drilled mounting hole, and the expansion nail is directly and completely pressed into the expansion bolt, so that the front end of the expansion bolt is expanded and fastened in the decoration panel, and the rear end of the expansion nail is also located in the expansion bolt. Connection is carried out in the mode that gluing is matched with mechanical connection, operation is simple and easy to implement, production and installation efficiency is higher, and enough anchoring force can be provided.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal insulation and decorative integrated panels, and in particular to a thermal insulation and decorative integrated panel and a connection method thereof. Background Art

[0002] As a new type of thermal insulation decorative material, the thermal insulation decorative integrated board has been widely used due to its good decorative effect, good thermal insulation performance, simple and quick construction, etc. The thermal insulation decorative integrated board in the prior art is mainly divided into a two-layer structure and a three-layer structure. The two-layer structure is composed of a thermal insulation layer and a panel layer, and the three-layer structure is composed of a bottom plate layer, a thermal insulation layer and a panel layer.

[0003] In the prior art, the above-mentioned thermal insulation and decorative integrated panels are mostly connected by adhesives, and the panel layer and the thermal insulation layer are usually bonded by organic adhesives, and the installation is mainly by gluing, supplemented by anchoring. As the thermal insulation and decorative integrated panels are used outdoors for a longer time, the connection strength of the adhesive will decrease, resulting in a decrease in the bonding strength between the panel layer and the thermal insulation layer. Under the influence of external wind and rain, especially typhoons and other severe weather, there is a safety hazard of the panel layer falling off. In addition, the structure of the existing thermal insulation and decorative integrated panels does not fully consider the connection requirements with mechanical connectors. For example, in the event of a fire, the organic adhesive will also be carbonized by heat, resulting in a decrease in strength, which can easily cause the panel layer to fall off, posing a safety risk.

[0004] With the development of technology, in recent years, there have been some studies on the use of mechanical connectors to strengthen the connection strength between the panel layer and / or the insulation layer and / or the bottom plate layer. For example, the Chinese invention patent with the application number 202111544305.5 and the application number 202023250731.1, respectively, is called the insulation decorative panel with mechanical connection structure. They all use mechanical connection methods, in which the former uses square steel as the connector between the panel and the bottom plate, and the latter uses bolts as connectors, which can improve the connection firmness and service life between the layers of the insulation decorative panel. However, they all use the solution of punching holes and pre-buried holes (T-shaped holes) on the panel. The insulation layer of the former also needs to pre-cut square steel installation space, which will destroy the integrity of the insulation layer. The latter has the problem of threading the bottom plate holes and the embedded nuts, which requires high precision and is difficult to construct. In addition, the insulation layer needs to be pre-cut (the incision is relatively small). Both require multiple processes such as drilling, embedding blind hole nuts, filling holes with glue, and panel sanding during production and construction. Most of the above processes are manual operations, which greatly reduces production efficiency. Since they are exposed to the outside, if the construction is not strict, the panel layer will be colored, bumpy, and even water seepage and rust on the connectors. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a thermal insulation decorative integrated panel and a connection method thereof, which is connected by gluing and mechanical connection, is simple and easy to operate, has higher production and installation efficiency, can provide sufficient anchoring force, maintain the stability of the expansion bolt, and avoid the movement of the expansion nail. The decorative panel has excellent performance, the installation hole does not penetrate the decorative panel, does not damage the outside of the decorative panel, does not require pre-embedding, glue filling, sanding and other complex processes, and can improve the production efficiency of the thermal insulation decorative integrated panel.

[0006] The present invention is implemented by the following technical scheme: a thermal insulation and decorative integrated panel and a connection method thereof, wherein the thermal insulation and decorative integrated panel includes a base plate, an insulation layer, a decorative panel and a mechanical connector, the insulation layer is arranged between the base plate and the decorative panel, and the mechanical connector includes expansion nails and expansion bolts.

[0007] The thermal insulation decorative integrated panel connection method comprises the following steps:

[0008] Step 1: Use adhesive to glue the decorative panel, insulation layer and base plate in sequence, and then place them on a pressing machine for fixed pressing;

[0009] Step 2: Use a drill bit to start drilling from the bottom plate, and then drill through the bottom plate, the insulation layer, and the decorative panel to a certain depth without penetrating the decorative panel to make the installation hole;

[0010] Step 3: After the drilling is completed, put the expansion bolt into the drilled installation hole, and then press the expansion nail directly and completely into the expansion bolt, so that the front end of the expansion bolt is expanded and fastened in the decorative panel, and the rear end of the expansion nail is also located in the expansion bolt;

[0011] Step 4: Use sealant to fill the gap between the rear end of the expansion nail and the expansion bolt.

[0012] Furthermore, the expansion bolt includes a bolt body, a flat head, a protruding ring, a protrusion and a bolt body through groove. The bolt body is a centrally hollow cylindrical body, and a plurality of circles of protrusions are arranged at intervals on the outer side of the bottom of the bolt body. The upper inner wall of the bolt body is circular, and the bottom inner wall thereof bulges inward to form a circle of circular protruding rings; a plurality of penetrating bolt body through grooves are symmetrically arranged on the bottom of the bolt body; the flat head is integrally formed and arranged on the top of the bolt body.

[0013] Furthermore, the expansion nail includes a nail body and a pressure head, the nail body is cylindrical, the upper part of the nail body is installed in the upper center of the bolt body through a clearance fit, and the lower part of the nail body is installed in the protruding ring at the bottom of the bolt body through an interference fit. The pressure head is integrally formed at the top of the nail body, and the top of the pressure head is arc-shaped.

[0014] Furthermore, a plurality of circles of reinforcing bars are arranged at intervals on the outer circle of the upper part of the nail body.

[0015] Furthermore, a top head is integrally formed and fixed to the bottom end of the nail body, and the top head is hemispherical.

[0016] Furthermore, a countersunk hole is arranged on the outer side of the bottom plate, and the flat head is buried in the countersunk hole so that the outer end of the flat head is lower than the outer surface of the bottom plate.

[0017] Furthermore, the pressure head is sunk inside the bolt body, and the outer end of the pressure head is lower than the outer end of the flat head, so that a cavity is formed between the outer end of the pressure head and the outer surface of the bottom plate, and the cavity is filled with sealant.

[0018] Furthermore, the thickness of the decorative panel is 7-15 mm, the thickness of the thermal insulation layer is 30-120 mm, and the thickness of the bottom plate is 3-5 mm.

[0019] Furthermore, the decorative panel comprises a fiber-reinforced calcium silicate substrate, a sealing primer layer, a matching base paint layer, a stone-like paint layer and a finishing paint layer which are arranged in sequence from the inside to the outside.

[0020] Furthermore, the bottom plate is evenly distributed with penetrating trapezoidal through holes, the large hole ends of the trapezoidal through holes face the thermal insulation layer, the hole diameter of the large hole ends of the trapezoidal through holes is 8-10 mm, and the hole diameter of the small hole ends is 6-8 mm.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention provides a thermal insulation decorative integrated panel and a connection method thereof, which is connected by means of adhesive and mechanical connection, wherein the expansion nail is directly pressed into the expansion bolt for fixing, which is simple and easy to operate, and has higher production and installation efficiency, and can make the outer side of the bolt body fit closely with the wall, provide sufficient anchoring force, and keep the expansion bolt stable. The upper part of the nail body can also fit closely with the upper part of the bolt body, thereby increasing friction and preventing the movement of the expansion nail.

[0023] 2. The present invention provides an integrated thermal insulation and decorative panel and a connection method thereof, wherein the mounting holes do not penetrate the decorative panel, thereby not damaging the surface of the decorative panel facing the outside of the wall, and does not require complex processes such as pre-embedding, glue filling, and sanding, thereby improving the production efficiency of the integrated thermal insulation and decorative panel.

[0024] 3. In the thermal insulation decorative integrated panel and the connection method thereof of the present invention, the holes for installing the expansion bolts can be in two forms. One is to drill the installation holes directly on the base plate, which only requires one drilling and fewer processes. When the thermal insulation decorative integrated panels are stacked, the decorative panels are opposite to each other and the base plates are opposite to each other, which can reduce the damage to the adjacent thermal insulation decorative integrated panels when stacking the panels and is more convenient for stacking and transportation. Sealant is filled on the outer surface of the pressure head and the base plate to further improve the connection strength between the expansion nails and the expansion bolts, reduce the risk of the expansion nails moving outward, and also buffer the rigid contact between adjacent thermal insulation decorative integrated panels, reducing damage to adjacent panels. Of course, according to special needs, the installation holes and the countersunk holes can be T-shaped holes.

[0025] 4. The present invention provides an integrated thermal insulation decorative panel and a connection method thereof, wherein the bonding consistency between the layers of the decorative panel is good, the panel has strong weather resistance and wear resistance, can create a stone decorative effect, and also has the characteristics of high strength, light weight, good fire retardancy, good impact resistance, etc., and can be cut, punched, and other processing operations as needed.

[0026] 5. The thermal insulation decorative integrated panel and its connection method of the present invention, through the arrangement of trapezoidal through holes on the bottom plate, play a steam exhaust function when the adhesive and mortar are cured, avoiding the accumulation of water vapor. During construction, the adhesive is squeezed into the trapezoidal through holes to cure, and the bonding strength between the thermal insulation decorative integrated panel and the base layer can be enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the thermal insulation decorative integrated board and the connection method thereof of the present invention when there are no countersunk holes;

[0028] Figure 2 It is a schematic diagram of the structure of the expansion bolt in the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the expansion nail in the present invention;

[0030] Figure 4 It is a structural schematic diagram of the bottom plate of the present invention;

[0031] Figure 5 It is a structural schematic diagram of the heat-insulating decorative integrated panel and the connection method thereof when countersunk holes are provided in the present invention.

[0032] In the figure: base plate-1; insulation layer-2; decorative panel-3; expansion nail-4; expansion bolt-5; sealant-6; mounting hole-7; trapezoidal through hole-8; countersunk hole-10; fiber-reinforced calcium silicate substrate-11; sealing primer layer-12; matching base paint layer-13; imitation stone paint layer-14; topcoat paint layer-15; nail body-31; top head-32; pressure head-33; reinforcing bar-34; bolt body-51; flat head-52; protruding ring-53; protruding part-54; bolt body through groove-55. DETAILED DESCRIPTION

[0033] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0034] The purpose of the present invention is to provide a thermal insulation and decorative integrated panel and a connection method thereof in view of the defects of the prior art.

[0035] Embodiment 1

[0036] This embodiment provides a thermal insulation decorative integrated board, referring to Figure 1 As shown, it includes a base plate 1, an insulation layer 2, a decorative panel 3 and a mechanical connector, the insulation layer 2 is arranged between the base plate 1 and the decorative panel 3, the decorative panel 3, the insulation layer 2 and the base plate 1 are bonded to each other by an adhesive, and the mechanical connector includes an expansion nail 4 and an expansion bolt 5. The thickness of the decorative panel 3 is 7-15 mm, the thickness of the insulation layer 2 is 30-120 mm, and the thickness of the base plate 1 is 3-5 mm.

[0037] Reference Figure 2 As shown, the expansion bolt 5 includes a bolt body 51, a flat head 52, a protruding ring 53, a protruding portion 54 and a bolt body through groove 55. The bolt body 51 is a hollow cylindrical body. A plurality of ring protruding portions 54 are arranged at intervals on the outer side of the bottom of the bolt body 51. The protruding portions 54 can be ring patterns, which are used to increase the anchoring force between the bolt body 51 and the decorative panel 3 and keep the expansion bolt 5 stable. The length of the protruding portion 54 is 1 / 8 to 1 / 4 of the length of the bolt body 51. The upper inner wall of the bolt body 51 is circular, that is, the upper center is a circular hole, and the bottom inner wall is The inner side is convex to form a circle of circular protruding ring 53, and a transition chamfer is set between the protruding ring 53 and the circular hole in the center of the upper part of the bolt body 51 to facilitate the transition of the expansion nail 4; two penetrating bolt body grooves 55 are symmetrically set at the bottom of the bolt body 51, so that when the expansion nail 4 is pressed into the protruding ring 53 in the bolt body 51, the bottom of the bolt body 51 can be deformed and expanded outward, so that the outer side of the bolt body 51 is closely fitted to the wall, providing sufficient anchoring force; the flat head 52 is integrally formed and set at the top of the bolt body 51.

[0038] Reference Figure 3As shown, the expansion nail 4 includes a nail body 31 and a pressure head 33. The nail body 31 is cylindrical. The upper part of the nail body 31 is installed in the upper center of the bolt body 51 through a clearance fit, and the lower part of the nail body 31 is installed in the protruding ring 53 at the bottom of the bolt body 51 through an interference fit, so that when the lower part of the nail body 31 is pressed into the protruding ring 53, the bottom of the bolt body 51 can deform and expand outward. The pressure head 33 is integrally formed and arranged at the top of the nail body 31, and the top of the pressure head 33 is arc-shaped. A plurality of circles of reinforcing bars 34 are arranged at intervals on the upper outer ring of the nail body 31, so that the upper part of the nail body 31 can fit closely with the upper part of the bolt body 51, improve friction, and prevent the movement of the expansion nail 4. The bottom end of the nail body 31 is integrally fixed with a head 32, and the head 32 is hemispherical, so that the lower part of the nail body 31 can better transition into the protruding ring 53 when under pressure.

[0039] In this embodiment, when drilling holes on the bottom plate 1 for installing the expansion bolts 5, the installation holes 7 can be directly drilled, that is, there is no need to drill T-shaped countersunk holes, so only one drilling is required, and fewer processes are required compared to drilling T-shaped countersunk holes. At this time, when the expansion bolts 5 are installed, the outer end of the flat head 52 is located on the outside of the bottom plate 1. When the insulation decorative integrated panels are stacked, the decorative panels 3 are opposite to the bottom plates 1, which can reduce damage to adjacent insulation decorative integrated panels when stacking, making it easier to stack and transport.

[0040] Reference Figure 1-Figure 3 As shown, the pressure head 33 is sunk inside the bolt body 51, and the outer end of the pressure head 33 is lower than the outer end of the flat head 52, so that a cavity is formed between the outer end of the pressure head 33 and the outer surface of the base plate 1, and the cavity is filled with sealant 6. The sealant 6 uses the strong sealing quick-drying glue in the prior art. The filled sealant 6 is slightly higher than the outer end of the flat head 52 and covers and wraps the entire flat head 52, further improving the connection strength between the expansion nail 4 and the expansion bolt 5, reducing the risk of outward movement of the expansion nail 4, and at the same time, it can also buffer the rigid contact between adjacent thermal insulation and decorative integrated panels, reducing damage to adjacent panels.

[0041] A method for connecting a thermal insulation decorative integrated panel is used to obtain and install the above-mentioned thermal insulation decorative integrated panel connection structure, which comprises the following steps:

[0042] Step 1: Use adhesive to glue the decorative panel 3, the insulation layer 2, and the bottom plate 1 in pairs in sequence, and then place them on a pressing machine for fixed pressing;

[0043] Step 2: After the pressing is completed, take out the integrated board, with the bottom plate 1 facing upwards, and use a drill bit to start drilling from the bottom plate 1. The drill bit penetrates the bottom plate 1 and the insulation layer 2 in turn, and drills into the decorative panel 3 to a certain depth, but does not penetrate the decorative panel 3, and punches the installation hole 7; since the installation hole 7 does not penetrate the decorative panel 3, the surface of the decorative panel facing the outside of the wall is not damaged, and there is no need to perform complex processes such as pre-embedding, glue filling, and sanding. Only one drilling is required, thereby improving the production efficiency of the thermal insulation decorative integrated board.

[0044] Step three: After the drilling is completed, the expansion bolt 5 is placed into the drilled installation hole 7, and then the expansion nail 4 is directly and completely pressed into the expansion bolt 5, so that the front end of the expansion bolt 5 is expanded and fastened in the decorative panel 3, and the rear end of the expansion nail 4 is also located in the expansion bolt 5; the expansion nail 4 adopts a fixing method of directly pressing the expansion bolt 5, which is simple and easy to operate, and has higher production and installation efficiency. The structural design of the expansion nail 4 makes it firmly fixed and can prevent movement.

[0045] Step 4: Use sealant 6 to fill the gap between the rear end of the expansion nail 4 and the expansion bolt 5.

[0046] Embodiment 2

[0047] This embodiment provides a thermal insulation decorative integrated board, referring to Figure 5 As shown, a countersunk hole 10 is provided on the outer side of the bottom plate 1, the mounting hole 7 is connected to the countersunk hole 10, and the flat head 52 is buried in the countersunk hole 10, so that the outer end of the flat head 52 is lower than the outer surface of the bottom plate 1. In this case, the mounting hole 7 and the countersunk hole 10 are T-shaped holes, and there are more processing steps. However, when the expansion bolt 5 is installed, the outer end of the flat head 52 will not extend to the outer end of the bottom plate 1. Therefore, when the thermal insulation decorative integrated board is stacked, it can be stacked in any direction.

[0048] Embodiment 3

[0049] This embodiment provides a thermal insulation decorative integrated board, referring to Figure 4As shown, the decorative panel 1 includes a fiber-reinforced calcium silicate substrate 11, a closed primer layer 12, a matching base paint layer 13, a stone-like paint layer 14 and a topcoat layer 15, which are arranged in sequence from the inside to the outside. The fiber-reinforced calcium silicate substrate 11 is arranged in the innermost layer, and is bonded to the thermal insulation layer 2 by an adhesive. It has the characteristics of high strength, light weight, good fire retardancy, good impact resistance, etc., can withstand a large load, has a Class A combustion performance, strong hanging force, is not easy to break, and has good plasticity and processability, and can be cut, punched and other processing operations as needed. The closed primer layer 12 is attached to the outside of the fiber-reinforced calcium silicate substrate 11 to prevent the alkaline substances of the base layer from seeping out and affecting the effect of the surface coating, while enhancing the adhesion between the base layer and the subsequent coating, and can fill the tiny pores on the surface of the base layer to make the surface of the base layer smoother, providing a good foundation for the subsequent matching base paint layer 13. The supporting base color paint layer 13 is attached to the outside of the closed primer layer 12, mainly plays the role of providing color basis, can allocate different colors according to demand, to meet the color demand of the imitation stone effect, it has good compatibility with the closed primer layer 12 and the imitation stone coating layer 14, ensures the consistency of the bonding between the layers and the overall effect. The imitation stone coating layer 14 is attached to the outside of the supporting base color paint layer 13, it imitates the texture, texture and color of natural stone in appearance, can create the decorative effect of stone, and avoids the problems such as the weight that natural stone exists, the high cost, etc. simultaneously. The finishing paint layer 15 is attached to the outside of the imitation stone coating layer 14, is used to protect the imitation stone coating layer 14 of lower floor, improves the weather resistance and wear resistance of the imitation stone coating layer 14, can better resist the erosion of external environmental factors such as rain, dust, etc. to the coating, prolongs the service life of the coating, and keeps the durability of the decorative effect.

[0050] Embodiment 4

[0051] This embodiment provides a thermal insulation decorative integrated board, referring to Figure 1 As shown, the bottom plate 1 is evenly distributed with penetrating trapezoidal through holes 8, the large hole end of the trapezoidal through hole 8 faces the thermal insulation layer 2, the hole diameter of the large hole end of the trapezoidal through hole is 8-10mm, and the hole diameter of the small hole end is 6-8mm. The trapezoidal through hole 8 serves as a steam exhaust function when the adhesive and mortar are solidified to avoid the accumulation of water vapor. During construction, the adhesive is squeezed into the trapezoidal through hole 8 for solidification, which can also enhance the bonding strength between the thermal insulation decorative integrated board and the base layer.

[0052] The present invention discloses a thermal insulation decorative integrated board, which includes a base plate 1, a thermal insulation layer 2, a decorative panel 3 and a mechanical connector, which is connected by means of adhesive and mechanical connection, wherein the mechanical connection adopts a mechanical connector, which includes an expansion nail 4 and an expansion bolt 5. Through the structural design of the expansion bolt 5, when the expansion nail 4 is pressed into the protruding ring 53 in the bolt body 51, the bottom of the bolt body 51 can produce outward deformation and expansion, and through cooperation with the protruding portion 54, the outer side of the bolt body 51 can be closely fitted with the wall, providing sufficient anchoring force to keep the expansion bolt 5 stable. Through the structural design of the expansion nail 4, the lower part of the nail body 31 can better transition into the protruding ring 53 when under pressure, squeeze the bolt body 51, and make the upper part of the nail body 31 closely fit with the upper part of the bolt body 51, thereby increasing friction and avoiding the movement of the expansion nail 4, thereby improving the connection and installation strength of the thermal insulation decorative integrated board. By using the structure and connection method of the thermal insulation decorative integrated board in coordination, the expansion nail 4 is fixed in a manner of being directly pressed into the expansion bolt 5, which is simple and easy to operate and has higher production and installation efficiency.

[0053] In the thermal insulation decorative integrated board of the present invention, since the mounting hole 7 does not penetrate the decorative panel 3, the surface of the decorative panel facing the outside of the wall is not damaged, and there is no need for complicated processes such as pre-embedding, glue filling, and sanding, and only one drilling is required, thereby improving the production efficiency of the thermal insulation decorative integrated board.

[0054] In the present invention, the hole for installing the expansion bolt 5 can be in two forms. One is to drill the installation hole 7 directly on the base plate 1, that is, there is no need to drill a T-shaped countersunk hole, so only one drilling is required, and compared with drilling a T-shaped countersunk hole, fewer processes are required. At this time, the expansion bolt 5 is installed, and the outer end of the flat head 52 is located on the outside of the base plate 1. When the stacked plates of the thermal insulation decorative integrated panels are placed, the decorative panels 3 are opposite and the base plates 1 are opposite. This can reduce the damage to the adjacent thermal insulation decorative integrated panels when stacking the panels, and is more convenient for stacking and transportation. At this time, a sealant 6 can be filled on the outer surface of the pressure head 33 and the base plate 1. The filled sealant 6 is slightly higher than the outer end of the flat head 52 and covers and wraps the entire flat head 52, further improving the connection strength between the expansion nail 4 and the expansion bolt 5, reducing the risk of outward movement of the expansion nail 4, and at the same time buffering the rigid contact between adjacent thermal insulation decorative integrated panels, reducing damage to adjacent panels.

[0055] The other method is to set a countersunk hole 10 on the outer side of the bottom plate 1, the mounting hole 7 is connected to the countersunk hole 10, and the flat head 52 is buried in the countersunk hole 10, so that the outer end of the flat head 52 is lower than the outer surface of the bottom plate 1. In this case, the mounting hole 7 and the countersunk hole 10 are T-shaped holes, and there are more processing steps. However, when the expansion bolt 5 is installed, the outer end of the flat head 52 will not extend to the outer end of the bottom plate 1. Therefore, when the thermal insulation decorative integrated board is stacked, it can be stacked in any direction.

[0056] It should be noted that, according to the special needs of production and transportation, one of the two installation forms of the expansion bolt 5 can be selected for use.

[0057] The present invention provides a thermal insulation decorative integrated board, wherein the bonding consistency between the layers of the decorative panel 1 is good, has strong weather resistance and wear resistance, can create a stone decorative effect, and also has the characteristics of high strength, light weight, good fire retardancy, good impact resistance, etc., and can be cut, punched and other processing operations as needed, and can be better connected and installed with the mechanical connectors in the present invention. The trapezoidal through holes 8 on the bottom plate 1 are provided to exhaust steam when the adhesive and mortar are cured, avoiding the accumulation of water vapor. During construction, the adhesive is squeezed into the trapezoidal through holes 8 for curing, and the bonding strength between the thermal insulation decorative integrated board and the base layer can be enhanced.

[0058] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A method for connecting a thermal insulation decorative integrated panel, characterized in that: The thermal insulation and decorative integrated panel comprises a base plate (1), a thermal insulation layer (2), a decorative panel (3) and a mechanical connector, wherein the thermal insulation layer (2) is arranged between the base plate (1) and the decorative panel (3), and the mechanical connector comprises expansion nails (4) and expansion bolts (5); The method for connecting the thermal insulation decorative integrated board includes the following steps: Step 1: Use adhesive to glue the decorative panel (3), the thermal insulation layer (2), and the bottom plate (1) in sequence, and then place them on a pressing machine for fixed pressing; Step 2: Use a drill bit to start drilling from the bottom plate (1), and the drill bit sequentially penetrates the bottom plate (1), the insulation layer (2), and drills into the decorative panel (3) to a certain depth, but does not penetrate the decorative panel (3), to drill a mounting hole (7); Step 3: After the drilling is completed, the expansion bolt (5) is placed into the drilled installation hole (7), and then the expansion nail (4) is directly and completely pressed into the expansion bolt (5), so that the front end of the expansion bolt (5) is expanded and fastened in the decorative panel (3), and the rear end of the expansion nail (4) is also located in the expansion bolt (5); Step 4: Use sealant (6) to fill the gap between the rear end of the expansion nail (4) and the expansion bolt (5).

2. The thermal insulation and decorative integrated panel connection method according to claim 1, characterized in that: The expansion bolt (5) comprises a bolt body (51), a flat head (52), a protruding ring (53), a protruding portion (54) and a bolt body through groove (55); the bolt body (51) is a centrally hollow cylindrical body; a plurality of circles of protruding portions (54) are arranged at intervals on the outer side of the bottom of the bolt body (51); the upper inner wall of the bolt body (51) is circular, and the bottom inner wall thereof bulges inward to form a circle of circular protruding ring (53); a plurality of through bolt body through grooves (55) are symmetrically arranged at the bottom of the bolt body (51); and the flat head (52) is integrally formed and arranged at the top of the bolt body (51).

3. The thermal insulation and decorative integrated panel connection method according to claim 1, characterized in that: The expansion nail (4) comprises a nail body (31) and a pressing head (33); the nail body (31) is cylindrical; the upper part of the nail body (31) is installed in the upper center of the bolt body (51) by clearance fit; the lower part of the nail body (31) is installed in a protruding ring (53) at the bottom of the bolt body (51) by interference fit; the pressing head (33) is integrally formed and arranged at the top end of the nail body (31); and the top end of the pressing head (33) is arc-shaped.

4. The thermal insulation and decorative integrated panel connection method according to claim 3, characterized in that: A plurality of circles of reinforcing bars (34) are arranged at intervals on the outer circle of the upper part of the nail body (31).

5. The thermal insulation and decorative integrated panel connection method according to claim 3 or 4, characterized in that: A top head (32) is integrally formed and fixed to the bottom end of the nail body (31), and the top head (32) is hemispherical.

6. The thermal insulation and decorative integrated panel connection method according to claim 2, characterized in that: A countersunk hole (10) is arranged on the outside of the bottom plate (1), and the flat head (52) is buried in the countersunk hole (10), so that the outer end of the flat head (52) is lower than the outer surface of the bottom plate (1).

7. The thermal insulation and decorative integrated panel connection method according to claim 5, characterized in that: The pressure head (33) is sunk inside the bolt body (51), and the outer end of the pressure head (33) is lower than the outer end of the flat head (52), so that a cavity is formed between the outer end of the pressure head (33) and the outer surface of the bottom plate (1), and the cavity is filled with sealant (6).

8. The thermal insulation and decorative integrated panel connection method according to claim 5, characterized in that: The thickness of the decorative panel (3) is 7 to 15 mm, the thickness of the thermal insulation layer (2) is 30 to 120 mm, and the thickness of the bottom plate (1) is 3 to 5 mm.

9. The thermal insulation and decorative integrated panel connection method according to claim 5, characterized in that: The decorative panel (1) comprises a fiber-reinforced calcium silicate substrate (11), a sealing primer layer (12), a matching base paint layer (13), a stone-like paint layer (14) and a finishing paint layer (15) which are arranged in sequence from the inside to the outside.

10. The thermal insulation and decorative integrated panel connection method according to claim 5, characterized in that: The bottom plate (1) is evenly distributed with penetrating trapezoidal through holes (8), the large hole end of the trapezoidal through hole (8) faces the thermal insulation layer (2), the hole diameter of the large hole end of the trapezoidal through hole is 8-10 mm, and the hole diameter of the small hole end is 6-8 mm.

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