Back-plugging type combined heat preservation plate, heat preservation system and installation process

Abstract

The application belongs to the technical field of building outer wall and discloses a back-inserted combined heat-insulating board, a heat-insulating system and an installation process. One of the back-inserted combined heat-insulating boards comprises a first heat-insulating board for being inserted between keels for installing the back-inserted combined heat-insulating board and a second heat-insulating board for being connected with the keels and arranged in a shell. One side of the second heat-insulating board protrudes out of the shell to form a broken bridge contact part. When the back-inserted combined heat-insulating board is installed on the keels, the second heat-insulating board is arranged on the first heat-insulating board and the keels, and the second heat-insulating board is in contact with the first heat-insulating board and the keels through the broken bridge contact part. The application can effectively solve a series of problems such as weakening of fixing strength and hardness caused by too large total thickness of the heat-insulating board and the keels after installation, improve the heat-insulating effect of the positions between the keels, and realize the broken bridge effect of heat insulation and cold insulation through the broken bridge contact part of the second heat-insulating board.

Description

Technical Field

[0001] This invention belongs to the field of building exterior wall technology, specifically relating to a back-insertion type combined insulation board, insulation system and installation process. Background Technology

[0002] Currently, in the building exterior wall energy-saving insulation and decoration industry, the thickness of the integrated metal decorative insulation panels used is generally 50-60mm in the Central and Southern regions, plus a 30mm keel, for a total thickness of about 80-90mm; in the North China region, it is generally 60-80mm, plus a 30mm keel, for a total thickness of about 80-120mm; and in the Northeast region, it is generally 100-150mm, plus a 30mm keel, for a total thickness of about 180-200mm. As of 2023, the national building energy efficiency index has reached 75% to 85%, and the thickness of the insulation panels used is the thickness described above. The thickness will continue to increase year by year in the future.

[0003] This thickness of insulation board is too large, whether it's factory-processed or installed on-site. It's inconvenient and unsafe to produce and install, mainly due to the material itself – porous, soft, easily broken, and fragile (building materials generally require strength and sturdiness). Furthermore, the excessive thickness of the insulation board increases the cantilever length on the wall joists, weakening the fixing strength and rigidity. This is one practical problem. Secondly, in building energy-saving design calculations and acceptance of insulation performance, the large gaps between the integrated board and the wall cavity, even after the joists are densely installed, often fail to meet energy-saving insulation design requirements. Therefore, designs using metal decorative insulation integrated boards are often abandoned by design institutes. Thirdly, in urban old building renovations, to save time, old wall plaster is not removed, and metal decorative integrated boards are directly fixed to the joists. Afterwards, the sound of old wall plaster falling off the integrated board is frequently heard, creating a sense of insecurity.

[0004] The above three problems will lead to a decline in the composite quality of metal decorative insulation, making installation unsafe and unstable, and rendering the energy-saving design flaws unusable. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a back-insertion type combined insulation board, insulation system and installation process to solve the problems of large total thickness of the insulation board and the keel after installation and poor insulation effect.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] In a first aspect, a back-insertion type combined insulation board is provided, comprising:

[0008] The first insulation board is used to be inserted between the keels where the back-inserted composite insulation board is installed; and

[0009] The second insulation board is used to connect with the keel and is disposed inside an outer shell. One side of the second insulation board protrudes outside the outer shell to form a broken bridge contact part.

[0010] When the back-insulated composite insulation board is installed on the keel, the second insulation board covers the first insulation board and the keel, and the second insulation board contacts the first insulation board and the keel respectively through the broken bridge contact part.

[0011] In a possible implementation, the thickness of the back-insulated composite insulation board is 50-150mm;

[0012] The thickness of the first insulation board is 30-80mm, the thickness of the second insulation board is 20-70mm, and the thickness of the first insulation board is the same as the thickness of the keel.

[0013] In a possible implementation, the thickness of the first insulation board is 40-60mm, and the thickness of the second insulation board is 20-40mm;

[0014] The outer shell is a metal shell, which is formed by folding the periphery of a metal decorative panel inward and forming a box structure with one side open. The second insulation board is located inside the box structure and protrudes from the open side of the box structure.

[0015] The folded side of the metal shell is called the folded edge. The width of the folded edge in the thickness direction of the second insulation board is less than the thickness of the second insulation board, and the difference between the two is a, where 1≤a≤5.

[0016] In one possible implementation, the outer shell of the second insulation board is connected to multiple corner brackets;

[0017] The two ends of the second insulation board rest on the two adjacent keels and are respectively connected to the keels through the corner brackets.

[0018] Secondly, a thermal insulation system is also provided, including:

[0019] A back-insulated composite insulation board as described in any of the above-mentioned technical claims; and

[0020] The keel is provided in multiple parts and is used to fix it to the wall. The multiple keels are spaced apart from each other and form a first installation position for installing the first insulation board between two adjacent keels, and form a second installation position for installing the second insulation board on two first adjacent keels.

[0021] In one possible implementation, the keel has a support portion, the support portion having a filling structure distributed along the length direction, the filling structure being a groove-like structure or a cavity-like structure, and the filling structure being filled with thermal insulation material.

[0022] In a possible implementation, the keel also has two connecting parts distributed on both sides of the support, each connecting part having a plurality of evenly distributed first connecting holes along its length direction, the first connecting holes being used to connect to the wall through first fasteners.

[0023] In a possible implementation, at least two sets of thermal break pads are also included, wherein at least one set of thermal break pads is used to be disposed between the connection part and the wall and is passed through by the first fastener, and at least one set of thermal break pads is used to be disposed between the outer shell and the keel;

[0024] Each set of the thermal break pads includes a first thermal break pad and a second thermal break pad, both of which are wedge-shaped. The first thermal break pad and the second thermal break pad both have an oblique contact surface. The first thermal break pad and the second thermal break pad contact each other through the contact surface and together form a cubic support structure.

[0025] In a possible implementation, the keel is provided in groups of at least two and in multiple groups. Among the multiple groups of keels, at least one group has each keel with a length of 3m, at least one group has each keel with a length of 6m, and at least another group has each keel with a length of 9m.

[0026] Thirdly, an installation process for an insulation system is also provided. An insulation system based on any of the above technical solutions includes the following steps:

[0027] The energy-saving insulation board is cut into two parts, one part of which serves as the first insulation board and the other part serves as the insulation part of the second insulation board. Alternatively, the insulation parts of the first and second insulation boards can be made using energy-saving insulation materials.

[0028] To make a second insulation board, adhesive is applied to the inner wall of the outer shell, which is formed from a metal decorative panel. Then, the insulation part corresponding to the second insulation board is placed inside the outer shell and cold-pressed to form a second insulation board that integrates decoration and insulation.

[0029] Multiple keels filled with thermal insulation material are vertically arranged and installed on the wall, and connected to the wall by a second fastener;

[0030] The installation method is adopted from the bottom layer to the top. The second insulation board is installed between each two adjacent keels using corner brackets. After one layer is installed, the first insulation board is inserted into the space formed between the second insulation board, the keel and the wall.

[0031] The insulation boards are fixed by filling with expanding foam between adjacent second insulation boards, between the keel and the first insulation board, between the keel and the wall, and / or between the first insulation board and the wall.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The back-insertion type combined insulation board of the present invention divides the insulation board into a first insulation board and a second insulation board. The first insulation board can be back-inserted into the cavity between the keel, while the second insulation board can be installed on the keel in the manner of a regular insulation board. This can effectively solve a series of problems such as weakened fixing strength and hardness caused by the excessive total thickness of the insulation board and the keel after installation. It also improves the insulation effect between the keels. Furthermore, the broken bridge contact part of the second insulation board can prevent the outer shell from contacting the keel, thereby achieving the broken bridge effect of heat insulation and cold insulation.

[0034] The thermal insulation system of the present invention, by adopting the above-mentioned back-insertion type combined thermal insulation board, can greatly reduce the thickness of the external wall formed by installation, avoiding a series of problems such as weakened fixing strength and hardness due to excessive overall thickness. Furthermore, by filling the inner side of the keel with thermal insulation board or thermal insulation material, it can form a back-insertion type thermal insulation layer with the first thermal insulation board, and with the second thermal insulation board with thermal break structure, it can achieve a better thermal insulation effect.

[0035] Moreover, in addition to using the thermal break contact section for thermal break, multiple sets of thermal break pads made of thermal insulation material are used for support. This not only achieves further thermal insulation, but also allows for adjustment based on the actual installation situation or needs by adjusting the splicing height of the thermal break pads. Furthermore, the thermal break can be achieved between the second insulation board and the keel, as well as between the keel and the wall, greatly improving the thermal insulation performance of the insulation system.

[0036] Meanwhile, by thickening and lengthening the vertically installed keel, the original 3-meter keel, which was fixed at two points at both ends to each layer of concrete, was increased to four or six connection points to each layer of concrete. This greatly increased the installation structure, strength, and firmness, effectively improving quality and safety.

[0037] The installation process of the thermal insulation system of this invention can effectively improve the thickness of the traditional integrated panel during production and installation, ensuring the flatness and quality of the product, making the installation firm, safe, convenient, and quick. It also avoids the need to renovate old wall plaster, allowing direct installation on the old wall plaster, which is simpler, faster, more convenient, and more economical. Attached Figure Description

[0038] Figure 1 A three-dimensional schematic diagram of an existing energy-saving insulation board;

[0039] Figure 2 This is a schematic diagram illustrating the formation principle of the first and second insulation boards of a back-inserted combined insulation board according to an embodiment of this application.

[0040] Figure 3This is a three-dimensional structural diagram of the second insulation board of a back-insertion type combined insulation board according to an embodiment of this application;

[0041] Figure 4 This is a three-dimensional schematic diagram of the keel of a back-inserted combined insulation board according to an embodiment of this application;

[0042] Figure 5 This is a schematic diagram of the keel installation structure of an insulation system according to an embodiment of this application;

[0043] Figure 6 This is a schematic diagram of the structure of the second insulation board of an insulation system according to an embodiment of this application after being connected to the corner bracket;

[0044] Figure 7 This is a cross-sectional view of the installation of a thermal insulation system according to an embodiment of this application;

[0045] Figure 8 This is a schematic diagram of a set of thermal break pads in an embodiment of the present application.

[0046] Figure 9 This is a side view of the installation section of a thermal insulation system according to an embodiment of this application;

[0047] Figure 10 This is a three-dimensional installation structure diagram of a thermal insulation system according to an embodiment of this application.

[0048] In the diagram: 1-First insulation board; 2-Second insulation board; 21-Metal shell; 22-Temperature thermal break contact part; 3-Keel; 31-Support part; 32-Connecting part; 33-Insulation material; 4-Foaming adhesive; 5-Cast-in-place concrete building beam; 6-Angle bracket; 7-Temperature thermal break pad; 71-First thermal break pad; 8-Metal expansion bolt. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0050] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0051] Please refer to Figure 1-10As shown, an embodiment of this application provides a back-insertion type combined insulation board, including: a first insulation board 1, for insertion between keels 3 on which the back-insertion type combined insulation board is installed; and a second insulation board 2, for connection with the keel 3, and disposed within a housing, one side of the second insulation board 2 protruding outside the housing to form a broken bridge contact portion 22; when the back-insertion type combined insulation board is installed on the keel 3, the second insulation board 2 covers the first insulation board 1 and the keel 3, and the second insulation board 2 contacts the first insulation board 1 and the keel 3 respectively through the broken bridge contact portion 22.

[0052] The back-inserted composite insulation board is a composite insulation board, and its overall thickness conforms to the thickness range specified or required by the building exterior wall energy-saving insulation and decoration industry. That is, the sum of the thicknesses of the first insulation board 1 and the second insulation board 2 must meet the required range. However, since the existing energy-saving insulation board has a large overall thickness after installation with the keel 3, the back-inserted composite insulation board is installed in two parts: the insulation part composed of the first insulation board 1 and the insulation part composed of the second insulation board 2. The first insulation board 1 is inserted between the keels 3, while the second insulation board 2, which forms an integrated insulation and decoration panel with the outer shell, is installed on the surface. This not only allows the insulation material 33 to fill the empty space, but also reduces the thickness of the insulation board installed on the surface. Thus, while meeting the overall thickness requirements of the insulation board, the overall thickness after installation with the keel 3 is effectively reduced, thereby avoiding a series of problems caused by a large overall thickness. Moreover, by protruding the second insulation board 2 out of the outer shell, a broken bridge contact part 22 can be formed. When connected with the installation keel 3, the second insulation board 2 can contact the keel 3 and the first insulation board 1 through the broken bridge contact part 22, avoiding contact between the outer shell and the keel 3 and the first insulation board 1, thus achieving the broken bridge effect of heat insulation and cold insulation.

[0053] Through the above technical solution, the insulation board is divided into a first insulation board 1 and a second insulation board 2. The first insulation board 1 can be inserted into the cavity between the keel 3, while the second insulation board 2 can be installed on the keel 3 in the manner of a general insulation board. This can effectively solve a series of problems such as the weakening of fixing strength and hardness caused by the excessive total thickness of the insulation board and the keel 3 after installation. It also improves the insulation effect between the keels 3. Furthermore, the broken bridge contact part 22 of the second insulation board 2 can prevent the outer shell from contacting the keel 3, thereby achieving the broken bridge effect of heat insulation and cold insulation.

[0054] In one embodiment, the thickness of the back-insertion type combined insulation board is 50-150mm; the thickness of the first insulation board 1 is 30-80mm, the thickness of the second insulation board 2 is 20-70mm, and the thickness of the first insulation board 1 is the same as the thickness of the keel 3.

[0055] Because the thickness of the integrated metal decorative insulation panels varies in different regions, the back-insertion type combined insulation panel can be configured with a first insulation board 1 and a second insulation board 2 of appropriate thickness according to different usage scenarios or regions. The thickness of the back-insertion type combined insulation panel is within 50-150mm, the thickness of the first insulation board 1 is within 30-80mm, and the thickness of the second insulation board 2 is within 20-70mm. Furthermore, by setting the thickness of the first insulation board 1 to be consistent with the thickness of the keel 3, it is easier for the first insulation board 1 to be matched and inserted into the keel 3, allowing the second insulation board 2 to connect seamlessly after installation, resulting in a more rational structural design.

[0056] Furthermore, the thickness of the first insulation board 1 is 40-60mm, and the thickness of the second insulation board 2 is 20-40mm; the outer shell is a metal outer shell 21, which is formed by folding the periphery of a metal decorative panel inward and forming a box structure with one side open, the second insulation board 2 is disposed inside the box structure and protrudes from the open side of the box structure; the folded side of the metal outer shell 21 is a folded edge, and the width of the folded edge in the thickness direction of the second insulation board 2 is less than the thickness of the second insulation board 2 and the difference between the two is a, 1≤a≤5.

[0057] In this way, the first insulation board 1 with a thickness of 40-60mm and the second insulation board 2 with a thickness of 20-40mm can meet the requirements of building energy conservation calculations. Preferably, the thickness of the first insulation board 1 is 50mm, the thickness of the second insulation board 2 is 30mm, and the corresponding thickness of the keel 3 is also 50mm. Such thickness dimensions meet the requirements of building energy conservation calculations. Of course, the thickness of the first insulation board 1 needs to be adjusted according to the thermal calculation standards of different regions and the changes in the production and implementation of engineering projects, and there is no limitation. Moreover, the outer shell is formed by folding a metal decorative panel. Furthermore, the folded edge is smaller than the width in the thickness direction of the second insulation board 2 and smaller than the thickness of the second insulation board 2. This naturally forms a broken bridge contact part 22 in the structure, which can play the role of a broken bridge for heat insulation and cold insulation. By controlling the width of the folded edge in the thickness direction of the second insulation board 2 to be smaller than the thickness of the second insulation board 2 and the difference between the two to be a in the range of 1≤a≤5, preferably 2, it can better meet the product size design. In the specific implementation process, the thickness of the second insulation board 2 can be 30mm, the folded edge can be 28mm, that is, a is preferably 2mm.

[0058] Specifically, the outer shell of the second insulation board 2 is connected to multiple corner brackets 6; both ends of the second insulation board 2 rest on two adjacent keels 3 and are respectively connected to the keels 3 through the corner brackets 6. The corner brackets 6 facilitate the connection and fixation of the second insulation board 2 to the keels 3.

[0059] Embodiments of this application also provide a thermal insulation system, including: a back-insertion type combined thermal insulation board as described in any of the above technical solutions; and keel 3, which is provided in multiples and used for fixing to the wall, wherein the multiple keels 3 are spaced apart from each other and form a first installation position for installing the first thermal insulation board 1 between two adjacent keels 3, and form a second installation position for installing the second thermal insulation board 2 on the two first adjacent keels 3.

[0060] The keel 3 has multiple vertically installed members spaced apart from each other on the wall. In actual installation, either the first insulation board 1 can be installed first, followed by the second insulation board 2, or vice versa. The latter method is preferred in practice. This allows the first insulation board 1 to be installed using a back-insertion method, and also ensures that the first insulation board 1 is restrained by the already installed second insulation board 2 after insertion, facilitating a more stable installation. The second installation position is used to install the second insulation board 2. The second insulation board 2 is fixed to the first insulation board 1 on the keel 3 using a cover-mounting method, with both ends overlapping the adjacent two keels 3.

[0061] In one embodiment, the keel 3 has a support portion 31, the support portion 31 has a filling structure distributed along the length direction, the filling structure is a groove structure or a cavity structure, and the filling structure is filled with thermal insulation material 33.

[0062] The support part 31 has the same height or thickness as the first insulation board 1, ensuring flush alignment. Since the keel 3 is generally a profile structure, it has a large internal space, which forms a filling structure. By filling this structure with insulation material 33, the space is filled with insulation material 33, achieving a thermal insulation effect and further improving the overall insulation performance. It is understood that the keel 3 does not necessarily have to be an open groove-like structure on one side of the wall; it can also be a closed cavity-like structure, without limitation. In specific implementation, the insulation material 33 is preferably the same material as the first insulation board 1.

[0063] Furthermore, to facilitate the connection between the keel 3 and the wall, the keel 3 also has two connecting portions 32 distributed on both sides of the support portion 31. Each connecting portion 32 has a plurality of evenly distributed first connecting holes along its length direction. The first connecting holes are used to connect to the wall through first fasteners. In this way, the keel 3 can be connected to the wall through the two connecting portions 32 formed by folding or pressing, using first fasteners such as expansion bolts.

[0064] To achieve a thermal break connection between the keel 3 and the wall, at least two sets of thermal break pads 7 are further included. At least one set of thermal break pads 7 is used to be disposed between the connection part 32 and the wall and is passed through by the first fastener. At least another set of thermal break pads 7 is used to be disposed between the outer shell and the keel 3.

[0065] In this way, multiple sets of thermal break pads 7 are provided. Some thermal break pads 7 can be set between the connecting part 32 and the wall and are passed through by the first fastener to form a thermal break connection structure, which can prevent heat conduction between the keel 3 and the wall. Other thermal break pads 7 are set between the outer shell and the keel 3, which also form a thermal break connection structure and can also prevent heat conduction between the outer shell and the keel 3. When connected by the corner bracket 6, it can prevent the keel 3 from conducting heat to the outer shell through the corner bracket 6, thus realizing a multiple thermal break structure.

[0066] Specifically, each set of thermal break pads 7 includes a first thermal break pad 71 and a second thermal break pad 7, both with wedge-shaped structures. Both the first and second thermal break pads 71 ​​and 7 have an oblique contact surface. These contact surfaces connect the first and second thermal break pads 71 ​​and 7, forming a cubic support structure. The triangular or triangular prism-shaped wedge-shaped first and second thermal break pads 71 ​​and 7 can be joined together by their contact surfaces and can move relative to each other. This allows for adjustment of the overall thickness by increasing or decreasing the contact area, thus achieving the purpose of adjusting the installation thickness. Furthermore, being made of nylon material, they also function as thermal break pads. To ensure stability after adjustment, the contact surfaces of the first and second thermal break pads 71 ​​and 7 are respectively provided with convex and concave positioning grooves and positioning protrusions. Additionally, grooves with a resistance-increasing structure can be provided on their bottom and sides. This improves the bond with the expanding foam 4 and increases frictional resistance.

[0067] In one application scenario, the keel 3 is provided in groups of at least two, and multiple groups are provided. Among the multiple groups of keels 3, at least one group has each keel 3 with a length of 3m, at least one group has each keel 3 with a length of 6m, and at least another group has each keel 3 with a length of 9m. Since the existing keel 3 is generally 1-3m long, by increasing its length to 3-9m (i.e., providing three specifications of 3m, 6m, and 9m) and thickening it, the original 3-meter keel 3, which was fixed at two points at both ends to the cast-in-place concrete building beams 5 on each floor, is now fixed at four or six points on the cast-in-place concrete building beams 5 on each floor. The installation structure, strength, and firmness are increased several times, greatly improving quality and safety.

[0068] This application also provides an installation process for an insulation system, based on an insulation system as described in any of the above claims, including the following steps:

[0069] Step S1: Cut the energy-saving insulation board into two parts, one part of which serves as the first insulation board 1 and the other part as the insulation part of the second insulation board 2, or the insulation parts of the first insulation board 1 and the second insulation board 2 are made by using energy-saving insulation material 33.

[0070] In this step, the existing energy-saving insulation board can be divided and cut to make the first insulation board 1 and the second insulation board 2. This is more convenient and the size is easier to control. The first insulation board 1 can be transported to the site for installation first, while the insulation part of the second insulation board 2 can be processed in the project. Of course, the first insulation board 1 and the second insulation board 2 of the corresponding size can be made by using insulation material 33. For example, the first insulation board 1 can be made into 1200*600*50mm and the insulation part of the second insulation board 2 can be made into 1200*600*30mm. For the sake of explanation, the thickness of the outer shell is ignored here, but its thickness needs to be taken into account in the actual production or design process.

[0071] Step S2: Make the second insulation board 2. Apply adhesive to the inner wall of the outer shell formed by processing metal decorative panel, and then place the insulation part corresponding to the second insulation board 2 into the outer shell and cold press it to form the second insulation board 2 that integrates decoration and insulation.

[0072] In this step, the insulation portion of the second insulation board 2 is placed into a shell formed from a metal decorative panel and fixed by adhesive applied to the inner wall of the shell. Then, through cold pressing, the second insulation board 2 with a metal decorative surface is formed. Specifically, a box with a 28mm high, folded edge on all four sides is produced in the factory. An adhesive resistant to high temperatures of 100℃ and low temperatures of approximately 50℃ is sprayed inside the box. The 30mm thick insulation board portion is placed inside the adhesive-coated box and cold-pressed before packaging and shipping. Simultaneously, the keel 3 can also be produced in the factory, with a 50mm thick insulation material 33 or insulation board on its inner side. The connecting portions 32 on both sides of the zigzag keel 3 have punches for fixing to the wall. These punches are used to insert metal expansion screws 8 for fixing, while the punches on the support portion 31 of the keel 3 are fixed with plastic expansion screws.

[0073] Step S3: Vertically arrange and install multiple keels 3 filled with thermal insulation material 33 on the wall, and connect them to the wall with the second fastener.

[0074] In this step, during on-site installation of the keel 3, 3m, 6m, or 9m keels are selected according to installation requirements. The upper end of the keel 3 is first fixed at the concrete level on each floor of the building, using metal expansion bolts 8 inserted through punched holes for expansion and fixation. Plastic expansion bolts are used for fixing the punched holes on the support part 31 of the keel 3. After the vertical arrangement of the keels 3 is completed on-site, the factory-produced metal decorative insulation integrated panel is transported to the site. Correspondingly, the second fasteners include metal expansion bolts 8 for connecting the connecting part 32 to the wall and plastic expansion bolts for connecting the corner bracket 6 to the keel 3. Simultaneously, corresponding thermal break pads 7 are also installed. This method is not only secure but also provides a thermal break function.

[0075] Step S4: Using an installation method from the bottom up, install the second insulation board 2 between each pair of adjacent keels 3 using corner brackets 6, and after installing one layer, insert the first insulation board 1 into the space formed between the second insulation board 2, the keel 3 and the wall.

[0076] In this step, since the insulation keel 3 has been installed on the wall by the on-site installation work, the second insulation board 2 is installed from the bottom layer (first layer) upwards. Therefore, after the second insulation board 2 of each layer is installed, the back-insertion insulation board, i.e. the first insulation board 1, needs to be installed. The 50mm thick first insulation board 1 is inserted into the space between the first insulation board 1 and the wall.

[0077] Step S5: Fill and fix the adjacent second insulation boards 2, the keel 3 and the first insulation board 1, the keel 3 and the wall and / or the first insulation board 1 and the wall with expanding foam 4.

[0078] In this step, if there are loose gaps between the insulation board and the wall, expanding foam 4 is used for compression bonding and fixing. With the support of the first installation plate and the compression and support of the expanding foam 4, it can be directly installed on the exterior wall of the old building without renovating the old wall. The original old wall plaster does not need to be removed; it is firmly sealed to the back-insulated board material in close contact with the wall, preventing it from falling off. This innovative process not only solves the energy-saving calculation requirements for the exterior walls of new buildings but also meets the requirements for removing the old wall plaster in the renovation of old buildings. This is a very important task, as removing the old plaster involves dust, noise, and the risk of falling debris hitting objects or people, as well as the additional costs of transporting and storing large quantities of building materials. One of the key aspects of old building renovation is the need to renovate the exterior walls, removing the old plaster before applying new materials and adding energy-saving insulation material 33. Imagine if the traditional process of removing the old plaster, then pasting the insulation material 33, leveling and reinforcing, and finally painting is used. This process is not only cumbersome, but the cost of transporting and disposing of the old wall debris is also extremely high. If the installation process of this application is adopted, the old plaster can be removed without removing it. The insulation keel 3, the second insulation board 2, and the first insulation board 1 can be directly fixed, and the old plaster, insulation board, and integrated board can be firmly pressed and fixed by spraying foam adhesive 4. The resulting product system is simple, fast, economical, waste-saving, and time-saving.

[0079] Therefore, the installation process of the insulation system according to the embodiments of this application also has the following characteristics:

[0080] 1. The insulation system and its installation process are characterized by low cost and good insulation effect;

[0081] 2. The overall thickness of the insulation system is reduced, resulting in a significant improvement in quality. The flatness of the thin insulation board is more conducive to the flattening function than that of the thick insulation board.

[0082] 3. The installation of the thermal insulation keel 3 and the first thermal insulation board 1 significantly improves the energy-saving and thermal insulation effect of the exterior wall and enhances its performance;

[0083] 4. The installation of the thermal insulation system, like the aluminum alloy windows on the exterior wall, has a double-layer thermal break effect. This is a method that has never been used in the traditional installation of integrated metal panels, and it can effectively implement the system.

[0084] 5. This technical solution makes the quality of integrated panels produced in the factory more controllable, which can greatly improve product quality, make on-site installation simple, convenient and quick, and make it easier for design institutes to pass thermal design calculations. The installed metal decorative integrated panels are flatter, stronger, more elegant, more beautiful, safer and more durable.

[0085] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A back-insertion type combined insulation board, characterized in that: include: The first insulation board is used to be inserted between the keels where the back-insertion type combined insulation board is installed; as well as The second insulation board is used to connect with the keel and is disposed inside an outer shell. One side of the second insulation board protrudes outside the outer shell to form a broken bridge contact part. When the back-insulated composite insulation board is installed on the keel, the second insulation board covers the first insulation board and the keel, and the second insulation board contacts the first insulation board and the keel respectively through the broken bridge contact part; The thickness of the back-insulated composite insulation board is 50-150mm; The thickness of the first insulation board is 30-80mm, the thickness of the second insulation board is 20-70mm, and the thickness of the first insulation board is the same as the thickness of the keel. The thickness of the first insulation board is 40-60mm, and the thickness of the second insulation board is 20-40mm; The outer shell is a metal shell, which is formed by folding the periphery of a metal decorative panel inward and forming a box structure with one side open. The second insulation board is located inside the box structure and protrudes from the open side of the box structure. The folded side of the metal shell is called the folded edge. The width of the folded edge in the thickness direction of the second insulation board is less than the thickness of the second insulation board, and the difference between the two is a, where 1≤a≤5.

2. The back-insertion type combined insulation board according to claim 1, characterized in that: The outer shell of the second insulation board is connected to multiple corner brackets; The two ends of the second insulation board rest on the two adjacent keels and are respectively connected to the keels through the corner brackets.

3. A thermal insulation system, characterized in that: include: A back-insertion type combined insulation board as described in claim 1 or 2; as well as The keel is provided in multiple parts and is used to fix it to the wall. The multiple keels are spaced apart from each other and form a first installation position for installing the first insulation board between two adjacent keels, and form a second installation position for installing the second insulation board on two adjacent keels.

4. The thermal insulation system according to claim 3, characterized in that: The keel has a support part, and the support part has a filling structure distributed along the length direction. The filling structure is a groove-shaped structure or a cavity-shaped structure, and the filling structure is filled with thermal insulation material.

5. The thermal insulation system according to claim 4, characterized in that: The keel also has two connecting parts distributed on both sides of the support part. Each connecting part has a plurality of evenly distributed first connecting holes along its length direction. The first connecting holes are used to connect to the wall through first fasteners.

6. The thermal insulation system according to claim 5, characterized in that: It also includes at least two sets of thermal break pads, wherein at least one set of thermal break pads is used to be disposed between the connection part and the wall and is passed through by the first fastener, and at least one set of thermal break pads is used to be disposed between the outer shell and the keel; Each set of the thermal break pads includes a first thermal break pad and a second thermal break pad, both of which are wedge-shaped. The first thermal break pad and the second thermal break pad both have an oblique contact surface. The first thermal break pad and the second thermal break pad contact each other through the contact surface and together form a cubic support structure.

7. A thermal insulation system according to any one of claims 3-6, characterized in that: The keel is provided in groups of at least two and in multiple groups. Among the multiple groups of keels, at least one group of keels has a length of 3m for each keel, at least one group of keels has a length of 6m for each keel, and at least another group of keels has a length of 9m for each keel.

8. An installation process for a thermal insulation system, based on a thermal insulation system as described in any one of claims 3-6, characterized in that: Includes the following steps: The energy-saving insulation board is cut into two parts, one part of which serves as the first insulation board and the other part serves as the insulation part of the second insulation board. Alternatively, the insulation parts of the first and second insulation boards can be made using energy-saving insulation materials. To make a second insulation board, adhesive is applied to the inner wall of the outer shell, which is formed from a metal decorative panel. Then, the insulation part corresponding to the second insulation board is placed inside the outer shell and cold-pressed to form a second insulation board that integrates decoration and insulation. Multiple keels filled with thermal insulation material are vertically arranged and installed on the wall, and connected to the wall by a second fastener; The installation method is adopted from the bottom layer to the top. The second insulation board is installed between each two adjacent keels using corner brackets. After one layer is installed, the first insulation board is inserted into the space formed between the second insulation board, the keel and the wall. The insulation boards are fixed by filling with expanding foam between adjacent second insulation boards, between the keel and the first insulation board, between the keel and the wall, and / or between the first insulation board and the wall.

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