Fabricated exterior wall external thermal insulation structure and construction method thereof

Abstract

The invention discloses a fabricated exterior wall external thermal insulation structure and a construction method thereof.The fabricated exterior wall external thermal insulation structure comprises a base layer wall body and fabricated exterior wall external thermal insulation modules connected with the base layer wall body, and the base layer wall body and the fabricated exterior wall external thermal insulation modules form a filling cavity; polyurethane glue is filled in a filling cavity formed by the base layer wall body and the fabricated exterior wall external thermal insulation modules, the base layer wall body is a concrete beam or a steel beam, mounting holes are formed in the concrete beam or steel beam wall body, and a plurality of fabricated exterior wall external thermal insulation modules are arranged. The multiple assembly type exterior wall external thermal insulation modules are fixed to the base layer wall body through expansion bolts, an exterior wall external thermal insulation system is formed by the multiple assembly type exterior wall external thermal insulation modules and the base layer wall body, and each assembly type exterior wall external thermal insulation module comprises a keel frame and a thermal insulation layer. The keel frame and the heat preservation layer are bonded through an adhesive, and therefore the assembly type outer wall external heat preservation module with bonding and pulling combined is formed.

Description

Technical Field

[0001] The invention belongs to the technical field of construction, and in particular relates to an assembled exterior wall external insulation structure and a construction method thereof. Background Art

[0002] The existing near-zero energy consumption exterior wall insulation has a large insulation thickness, generally about 150-300 mm. During construction, relatively thin insulation materials are often used in layers to achieve the designed insulation thickness. The above construction method has a cumbersome construction process. At the same time, due to the on-site layer-by-layer construction, the construction quality is difficult to be effectively controlled, and the construction efficiency is low.

[0003] In addition, the finishing layer of the existing construction method is constructed on-site, and the construction method can only use sprayed finishing materials, and it is impossible to use inorganic plates or metal plates as finishing layers and protective layers.

[0004] In view of the above factors, an assembled exterior wall external insulation structure and a construction method thereof are provided, in which a nearly zero energy consumption exterior insulation system is modularly prefabricated in a factory, a fixed steel keel frame is arranged at the rear for easy lifting, and the insulation layer is fixed, and the finishing layer and the steel keel frame are directly integrated as a whole. At the same time, the three are directly bonded with polyurethane adhesive to improve safety, thereby realizing a cavity-free and continuous structure, thereby meeting the performance requirements of nearly zero energy consumption exterior wall external insulation. Summary of the invention

[0005] The object of the present invention is to provide an assembled exterior wall external insulation structure and a construction method thereof to solve the problems raised in the above-mentioned background technology.

[0006] The objective of the present invention is achieved through the following technical solutions: an assembled exterior wall external insulation structure, comprising a base wall and an assembled exterior wall external insulation module connected to the base wall, the base wall and the assembled exterior wall external insulation module form a filling cavity, and a polyurethane layer is filled in the filling cavity formed by the base wall and the assembled exterior wall external insulation module;

[0007] The base wall is a concrete beam or a steel beam, and a mounting hole is provided on the concrete beam or the steel beam wall. A plurality of the assembled exterior wall external insulation modules are provided, and the plurality of the assembled exterior wall external insulation modules are fixed to the base wall by metal anchor bolts;

[0008] An exterior wall external insulation system is formed by a plurality of the assembled exterior wall external insulation modules and the base wall.

[0009] Furthermore, the assembled external wall insulation module comprises a keel frame and an insulation layer, the keel frame and the insulation layer are prefabricated in a factory, and the keel frame and the insulation layer are bonded with an adhesive, thereby forming an assembled external wall insulation module combining bonding and tensioning;

[0010] The outer side of the assembled exterior wall external insulation module also includes a finishing layer, and the finishing layer and the keel frame are connected by a thermal break connector, and the thermal break connector binds the finishing layer and the keel frame into an integral structure.

[0011] Furthermore, the thermal break connector is a plate structure, and the thermal break connector is made of high-density polyurethane board and FRP non-metallic material.

[0012] Furthermore, the keel frame is a metal frame structure, and an internally threaded sleeve structure is arranged inside the upper and lower edge positions of the keel frame, a height adjustment part is installed on the outside of the keel frame, and a metal anchor bolt is installed in the internally threaded sleeve structure. The metal anchor bolt passes through the internally threaded sleeve structure to anchor the assembled exterior wall external insulation module to the base wall.

[0013] Furthermore, the height adjustment member is a disc component, a thread is arranged on the outer circumference of the disc component, the disc component is sleeved on the outer side of the metal anchor bolt, and the disc component is threadedly connected with the internal threaded sleeve structure.

[0014] Furthermore, the keel frame is composed of parallel square steels, and the upper and lower ends of the square steels are connected to angle steels by welding. The angle steels at the bottom of the keel frame are provided with spaced thermal break connectors connected to the finishing layer, and the parallel square steels are provided with spaced thermal break connectors connected to the finishing layer.

[0015] Furthermore, the metal anchor bolt is installed in the middle hole of the fixed structure formed by the height adjustment member and the internal threaded sleeve structure, and the disc component is adjusted to adapt to the flatness of the base wall, and the metal anchor bolt is tightened after leveling.

[0016] Furthermore, a concave-convex tongue-and-groove structure is provided on the thermal insulation layer, and the concave-convex tongue-and-groove structure formed by two adjacent thermal insulation layers is filled with polyurethane glue for fixed installation.

[0017] A construction method for an assembled exterior wall external insulation structure specifically comprises the following steps:

[0018] The facing layer and the keel frame of the assembled external wall insulation module are connected by a thermal break connector, which is made of non-metallic material. The thermal break connector binds the facing layer and the keel frame into a whole. At the same time, the facing layer and the insulation layer, and the insulation layer and the keel frame are bonded with adhesive during factory prefabrication, thereby forming an assembled external wall insulation module that combines bonding and binding.

[0019] During the on-site construction of the assembled exterior wall external insulation module, firstly, installation holes are drilled on the base wall according to the installation positions of the metal anchor bolts, and the installation holes are set at the concrete beams or steel beams;

[0020] After the installation hole is opened in the base wall, the metal anchor bolt is installed in the middle hole of the fixed structure formed by the height adjustment member and the internal threaded sleeve structure, and the height adjustment member is used to adapt to the flatness of the concrete beam or steel beam. After leveling, the metal anchor bolts around the edges of the keel frame are tightened. After the metal anchor bolts are tightened, the cavity formed by the assembled external wall external insulation module and the base wall is filled with polyurethane glue;

[0021] Several assembled exterior wall insulation modules are provided, and an exterior wall insulation system is formed by the several assembled exterior wall insulation modules and the base wall. After the first assembled exterior wall insulation module is in place, the second one is installed. During installation, the tongue and groove formed by two adjacent insulation layers are firstly glued with polyurethane glue and then fixed. Through the above method, all gaps in the insulation layer can be sealed to achieve continuous insulation.

[0022] Furthermore, the internal threaded sleeve structure arranged around the keel frame and the stroke of the disc member form an adjustable fixed node;

[0023] The internal threaded sleeve is constructed as a through cylinder structure and is fixedly arranged at the upper end of the keel frame;

[0024] The groove formed by the thermal insulation layer reserves space for installing the thermal insulation connector.

[0025] A construction method for an assembled exterior wall external thermal insulation structure is applied to the field of assembled exterior wall external thermal insulation.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The module of the present invention is fixed on the concrete beam or steel beam by metal expansion bolts, and the cavity formed by the module and the wall is filled with polyurethane adhesive, which improves the safety of the method and also enables the entire insulation layer to achieve a cavity-free and continuous structure, thereby meeting the performance requirements of near-zero energy consumption external wall insulation.

[0028] The present invention prefabricates the nearly zero-energy external insulation system in a factory in a modular manner. A fixed steel keel frame is provided at the rear for easy lifting. The insulation layer is fixed, and the finishing layer and the steel keel frame are directly integrated. At the same time, the three are directly bonded with a polyurethane adhesive to improve safety. While improving the safety of this method, the entire insulation layer also achieves a cavity-free and continuous structure, thereby meeting the performance requirements of nearly zero-energy external wall insulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0030] Figure 2 It is a three-dimensional schematic diagram of the assembled exterior wall external insulation module of the present invention;

[0031] Figure 3 It is a three-dimensional schematic diagram of the keel frame of the present invention;

[0032] Figure 4 It is a three-dimensional schematic diagram of another state of the assembled exterior wall external insulation module of the present invention;

[0033] Figure 5 It is a schematic diagram of the structure of the internal thread sleeve and the connection between the height adjustment member and the metal anchor bolt of the present invention;

[0034] Figure 6 It is an enlarged schematic diagram of the connection between the internal thread sleeve structure and the height adjustment member of the present invention;

[0035] Figure 7 It is a schematic diagram of the connection between the height adjusting member of the present invention and the metal anchor bolt. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] like Figure 1-7 As shown, an assembled exterior wall external insulation structure comprises a base wall 1 and an assembled exterior wall external insulation module 2 connected to the base wall 1, wherein the base wall 1 and the assembled exterior wall external insulation module 2 form a filling cavity, and a polyurethane layer 3 is filled in the filling cavity formed by the base wall 1 and the assembled exterior wall external insulation module 2;

[0040] The base wall 1 is a concrete beam or a steel beam, and a mounting hole is provided on the concrete beam or the steel beam wall. A plurality of the assembled exterior wall external insulation modules 2 are provided, and the plurality of the assembled exterior wall external insulation modules 2 are fixed to the base wall 1 by metal anchor bolts;

[0041] An exterior wall external insulation system is formed by a plurality of the assembled exterior wall external insulation modules 2 and the base wall 1 .

[0042] The filling cavity formed by the base wall 1 and the assembled exterior wall external insulation module 2 is filled with polyurethane glue.

[0043] In order to facilitate integration in the use state and improve the on-site installation efficiency, the assembled external wall external insulation module 2 includes a keel frame 21 and an insulation layer 22. The keel frame 21 and the insulation layer 22 are formed by factory prefabrication. The keel frame 21 and the insulation layer 22 are bonded by an adhesive, thereby forming an assembled external wall external insulation module 2 that combines bonding and pulling.

[0044] In order to facilitate the fastening and fixing of the finishing layer 23 and the keel frame 21 in the use state and improve the overall stability, the outer side of the assembled exterior wall external insulation module 2 also includes a finishing layer 23, and the finishing layer 23 and the keel frame 21 are connected by a thermal break connector 4, and the thermal break connector 4 fastens the finishing layer 23 and the keel frame 21 into an integral structure.

[0045] The thermal break connector 4 is a plate structure, and the thermal break connector 4 is made of high-density polyurethane board and FRP non-metallic material.

[0046] In order to facilitate the fixation of the keel frame 21 and the base wall when in use, the keel frame 21 is a metal frame structure, and an internal threaded sleeve structure 5 is arranged inside the upper and lower edge positions of the keel frame 21, and a height adjustment member 6 is installed on the outer side of the keel frame 21. A metal anchor bolt is installed in the internal threaded sleeve structure 5, and the metal anchor bolt passes through the internal threaded sleeve structure 5 to anchor the assembled exterior wall external insulation module 2 to the base wall 1.

[0047] The height adjustment member 6 is a disc member, the outer circumference of which is provided with threads. The disc member is sleeved on the outer side of the metal anchor bolt, and the disc member is threadedly connected to the internal threaded sleeve structure 5 .

[0048] The keel frame 21 is composed of parallel square steels, and the upper and lower ends of the square steels are connected to angle steels by welding. The angle steels at the bottom of the keel frame 21 are provided with spaced thermal break connectors 4 connected to the finishing layer 23, and the parallel square steels are provided with spaced thermal break connectors 4 connected to the finishing layer 23.

[0049] In order to facilitate fine-tuning to adapt to the flatness of the base wall 1 during use, the metal anchor bolt is installed in the middle hole of the fixed structure formed by the height adjustment member 6 and the internal threaded sleeve structure 5. The disc component is adjusted to adapt to the flatness of the base wall 1, and the metal anchor bolt is tightened after leveling.

[0050] In order to facilitate sealing in use, the thermal insulation layer 22 is provided with a concave-convex tongue-and-groove structure, and the concave-convex tongue-and-groove structure formed by two adjacent thermal insulation layers 22 is filled with polyurethane glue for fixed installation.

[0051] A construction method for an assembled exterior wall external insulation structure specifically comprises the following steps:

[0052] The facing layer of the assembled external wall thermal insulation module 2 is connected to the keel frame 21 by a thermal break connector 4, and the thermal break connector 4 is made of non-metallic material. The thermal break connector 4 binds the facing layer 23 and the keel frame 21 into a whole. At the same time, the facing layer 23 and the thermal insulation layer 22, and the thermal insulation layer 22 and the keel frame 21 are bonded by an adhesive during factory prefabrication, thereby forming an assembled external wall thermal insulation module 2 that combines bonding and binding;

[0053] During the on-site construction of the assembled exterior wall external insulation module 2, firstly, installation holes are drilled on the base wall 1 according to the installation positions of the metal anchor bolts, and the installation holes are set at the concrete beams or steel beams;

[0054] After the installation hole is opened in the base wall 1, the metal anchor bolt is installed in the middle hole of the fixed structure formed by the height adjustment member 6 and the internal threaded sleeve structure 5, and the height adjustment member 6 is used to adapt to the flatness of the concrete beam or steel beam. After leveling, the metal anchor bolts around the edges of the keel frame 21 are tightened. After the metal anchor bolts are tightened, the cavity formed by the assembled external wall external insulation module 2 and the base wall 1 is filled with polyurethane glue;

[0055] Several assembled exterior wall insulation modules 2 are provided, and an exterior wall insulation system is formed by several of the assembled exterior wall insulation modules 2 and the base wall 1, wherein, after the first assembled exterior wall insulation module 2 is in place, the second one is installed, and during installation, the tongue and groove formed by two adjacent insulation layers 22 are firstly glued with polyurethane glue and then fixed and installed. Through the above method, all gaps in the insulation layer 22 can be sealed, continuous insulation can be achieved, and the influence of cold bridges can be avoided.

[0056] The internal thread sleeve structure and the disc member stroke arranged around the keel frame 21 form an adjustable fixed node;

[0057] The internal threaded sleeve is constructed as a through cylinder structure and is fixedly mounted on the upper end of the keel frame 21;

[0058] The groove formed by the thermal insulation layer reserves space for installing the thermal insulation connector.

[0059] In the above construction method, the broken bridge connector is fixed to the steel frame and the finishing layer by anchor bolts, and can also be fixed to the finishing layer by hooks. Depending on the material of the finishing layer, if the finishing layer is a metal finishing layer, it is more convenient to fix it on the side with anchor bolts. If it is a ceramic plate, it is necessary to open an installation groove on the plate surface. A hook is set at the front end of the broken bridge connector for pulling, and rivets are used to fix it at the keel frame.

[0060] In the above construction method, after the first prefabricated exterior wall external insulation module is installed in place, the second one is installed. During installation, it should be noted that the tongue and groove formed by the two insulation layers should be firstly applied with polyurethane glue before fixed installation. During the construction process, the tongue and groove are made and adhesive is poured into the tongue and groove to achieve the sealing of the board seams. At the same time, adhesive is poured between the board seams of the connected prefabricated exterior wall external insulation modules to achieve the sealing of the board seams.

[0061] Through the above method, all gaps in the insulation layer can be sealed, continuous insulation can be achieved, and the impact of cold bridges can be avoided.

[0062] In the above construction method, a height adjustment member 6 is installed on the outside of the keel frame (steel frame). The height adjustment member 6 can be adjusted through the height adjustment member 6 according to the on-site installation status. The height adjustment member 6 is a disc component. The metal anchor bolt passes through the structure to anchor the assembled exterior wall insulation module to the base wall. When the base wall is uneven, the height can be adjusted by rotating the disc component. At the same time, the metal anchor bolt can be pressed on the fixed structure formed by the disc component and the internal threaded sleeve structure, which can realize mechanical anchoring and can also be adjusted according to the flatness of the wall.

[0063] Among them, the thermal break connector between the finishing layer and the keel frame is made of non-metallic material (such as high-density polyurethane board, FRP and other materials to avoid the influence of thermal bridges). The thermal break connector binds the finishing layer and the steel frame into a whole. At the same time, the finishing layer and the insulation layer are bonded to the steel frame with adhesive during prefabrication in the factory, thus forming an assembled exterior wall insulation module combining bonding and binding.

[0064] A construction method for an assembled exterior wall external thermal insulation structure is applied to the field of assembled exterior wall external thermal insulation.

[0065] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0066] 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. An assembled exterior wall external insulation structure, characterized in that: It comprises a base wall (1) and an assembled external wall external insulation module (2) connected to the base wall (1), wherein the base wall (1) and the assembled external wall external insulation module (2) form a filling cavity, and a polyurethane layer (3) is filled in the filling cavity formed by the base wall (1) and the assembled external wall external insulation module (2); The base wall (1) is a concrete beam or a steel beam, and a mounting hole is provided on the concrete beam or steel beam wall. A plurality of the assembled exterior wall external insulation modules (2) are provided, and the plurality of the assembled exterior wall external insulation modules (2) are fixed to the base wall (1) by metal anchor bolts; An external wall thermal insulation system is formed by a plurality of the assembled external wall thermal insulation modules (2) and the base wall (1).

2. The assembled exterior wall external insulation structure according to claim 1 is characterized in that: The assembled external wall thermal insulation module (2) comprises a keel frame (21) and a thermal insulation layer (22); the keel frame (21) and the thermal insulation layer (22) are prefabricated in a factory, and the keel frame (21) and the thermal insulation layer (22) are bonded with an adhesive, thereby forming an assembled external wall thermal insulation module (2) that combines bonding and bonding; The outer side of the assembled exterior wall external insulation module (2) further comprises a finishing layer (23), and the finishing layer (23) and the keel frame (21) are connected by a thermal break connector (4), and the thermal break connector (4) connects the finishing layer (23) and the keel frame (21) into an integral structure.

3. The assembled exterior wall external insulation structure according to claim 2 is characterized in that: The thermal break connector (4) is a plate structure, and the thermal break connector (4) is made of a high-density polyurethane plate or FRP non-metallic material.

4. The assembled exterior wall external insulation structure according to claim 3 is characterized in that: The keel frame (21) is a metal frame structure, and an internally threaded sleeve structure (5) is provided inside the upper and lower edge positions of the keel frame (21), a height adjustment member (6) is installed on the outer side of the keel frame (21), and a metal anchor bolt is installed inside the internally threaded sleeve structure (5), and the metal anchor bolt passes through the internally threaded sleeve structure (5) to anchor the assembled external wall external insulation module (2) to the base wall (1).

5. The assembled exterior wall external insulation structure according to claim 4 is characterized in that: The height adjustment member (6) is a disc component, the outer circumference of which is provided with threads, the disc component is sleeved on the outer side of the metal anchor bolt, and the disc component is threadedly connected to the internal threaded sleeve structure (5).

6. The assembled exterior wall external insulation structure according to claim 5 is characterized in that: The keel frame (21) is composed of parallel square steels, and the upper and lower ends of the square steels are connected to angle steels by welding. The angle steels at the bottom of the keel frame (21) are provided with spaced thermal break connectors (4) connected to the finishing layer (23), and the parallel square steels are provided with spaced thermal break connectors (4) connected to the finishing layer (23).

7. The assembled exterior wall external insulation structure according to claim 6 is characterized in that: The metal anchor bolt is installed in the middle hole of the fixed structure formed by the height adjustment member (6) and the internal threaded sleeve structure (5), and the metal anchor bolt is tightened after leveling by adjusting the disc member to adapt to the flatness of the base wall (1); The thermal insulation layer (22) is provided with a concave-convex tongue-and-groove structure, and the concave-convex tongue-and-groove structure formed by two adjacent thermal insulation layers (22) is filled with polyurethane glue for fixed installation.

8. A construction method for an assembled exterior wall external insulation structure according to any one of claims 1 to 7, characterized in that: Specifically include the following steps: The facing layer of the assembled external wall thermal insulation module (2) is connected to the keel frame (21) via a thermal break connector (4), the thermal break connector (4) is made of non-metallic material, and the thermal break connector (4) binds the facing layer (23) and the keel frame (21) into a whole. At the same time, the facing layer (23) and the thermal insulation layer (22), and the thermal insulation layer (22) and the keel frame (21) are bonded by adhesive during factory prefabrication, thereby forming an assembled external wall thermal insulation module (2) that combines bonding and binding; During on-site construction of the assembled exterior wall external insulation module (2), firstly, installation holes are drilled on the base wall (1) according to the installation positions of the metal anchor bolts, and the installation holes are arranged on the concrete beams or steel beams; After the installation hole is opened in the base wall (1), the metal anchor bolt is installed in the middle hole of the fixed structure formed by the height adjustment member (6) and the internal threaded sleeve structure (5), and the flatness of the concrete beam or steel beam is adapted by the height adjustment member (6). After leveling, the metal anchor bolts on the edges of the keel frame (21) are tightened. After the metal anchor bolts are tightened, the cavity formed by the assembled external wall external insulation module (2) and the base wall (1) is filled with polyurethane glue; A plurality of assembled external wall insulation modules (2) are provided, and an external wall insulation system is formed by the plurality of assembled external wall insulation modules (2) and the base wall (1), wherein after the first assembled external wall insulation module (2) is in place, the second one is installed, and during installation, the tongue and groove formed by two adjacent insulation layers (22) are firstly glued with polyurethane glue and then fixed and installed. By means of the above method, all gaps in the insulation layer (22) can be sealed, thereby achieving continuous insulation.

9. The construction method of the assembled exterior wall external insulation structure according to claim 8, characterized in that: The internal thread sleeve structure (5) arranged around the keel frame (21) and the stroke of the disc member form an adjustable fixed node; The internal thread sleeve structure (5) is a through-type cylindrical structure and is fixedly mounted on the upper end of the keel frame (21); The groove formed by the thermal insulation layer (22) reserves space for installing the thermal insulation connector (4).

10. A construction method of an assembled exterior wall external insulation structure according to any one of claims 1 to 7 or 8 to 9, applied to the field of assembled exterior wall external insulation.

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