Heat preservation and insulation structure of building external wall

Abstract

The utility model discloses a building external wall thermal insulation structure which comprises a modularized thermal insulation layer and a waterproof composite layer, the modularized thermal insulation layer comprises a plurality of thermal insulation base plates which are riveted with one another, each thermal insulation base plate is connected with an anchoring assembly, and the anchoring assemblies are used for being fixedly connected with a wall body; the waterproof composite layer comprises an expanded polytetrafluoroethylene layer, a gridding cloth layer and a coating layer, the expanded polytetrafluoroethylene layer is arranged on the outer wall of the modular heat preservation layer, and the gridding cloth layer is arranged on the expanded polytetrafluoroethylene layer; the coating layer is coated on the gridding cloth layer and permeates into pores of the gridding cloth layer to form an anti-crack layer. The problems of heat loss, structure damp and low construction efficiency can be solved.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a thermal insulation structure for building exterior walls. Background Technology

[0002] Exterior wall insulation structures are an important component of building energy conservation, primarily improving building energy efficiency by reducing heat transfer. However, existing exterior wall insulation structures have the following drawbacks:

[0003] 1. Interruptions may occur in areas such as balconies and window frames, leading to localized heat loss;

[0004] 2. Although the waterproof layer of the insulation board can achieve waterproofing, it also blocks the escape of water vapor, causing the waterproof layer and the insulation board to become damp and fail.

[0005] 3. Because the insulation structure is divided into multiple layers, each layer needs to be constructed separately, which is inefficient and prone to cracking and falling off between different layers.

[0006] Therefore, it is urgent to research and develop a thermal insulation structure for building exterior walls to solve the above-mentioned technical problems. Summary of the Invention

[0007] The purpose of this utility model is to provide a building exterior wall thermal insulation structure that can solve the problems of heat loss, structural dampness, and low construction efficiency.

[0008] To achieve the above objectives, this utility model provides a building exterior wall thermal insulation structure, the specific implementation of which is as follows:

[0009] A building exterior wall thermal insulation structure includes a modular insulation layer and a waterproof composite layer. The modular insulation layer includes several insulation substrates riveted to each other. Each insulation substrate is connected to an anchoring component, which is used to fix it to the wall. The anchoring component has an aerogel layer built in it to block heat transfer between the wall and the insulation substrate.

[0010] The waterproof composite layer includes an expanded polytetrafluoroethylene (ePTFE) layer, a mesh fabric layer, and a coating layer. The ePTFE layer is disposed on the outer wall of the modular insulation layer, the mesh fabric layer is disposed on the ePTFE layer, and the coating layer is applied to the mesh fabric layer and penetrates into the pores of the mesh fabric layer to form a crack-resistant layer.

[0011] This utility model discloses a building exterior wall thermal insulation structure. Compared with the prior art, it is fixedly connected to the wall through anchoring components. Each insulation substrate of the modular insulation layer is connected to an anchoring component. The aerogel layer on the anchoring component blocks the heat transfer between the anchoring component and the insulation substrate, thereby avoiding thermal bridge loss of the insulation substrate. Furthermore, a waterproof composite layer including expanded polytetrafluoroethylene layer, mesh cloth layer and coating layer is set on the modular insulation layer to ensure waterproofing while allowing water vapor to escape. Since it is pre-composite to the insulation substrate, the installation process is simplified, and the problems of heat loss, structural moisture and low construction efficiency can be solved.

[0012] In some embodiments, the anchoring assembly includes an anchoring body, an anchor bolt, and a connecting rod. The anchor bolt is provided on one side of the anchoring body for fixed connection to the wall, and the connecting rod is provided on the other side of the anchoring body for connection to the insulation substrate. The connecting rod is provided in the anchoring body to isolate the heat of the connecting rod from the anchor bolt and the wall.

[0013] By using anchor bolts to fix the wall and connecting rods to the insulation substrate, the connection between the anchoring components and the insulation substrate is made easier.

[0014] In some embodiments, the thermal insulation substrate has mounting holes, and the connecting rod is inserted into the mounting holes and is interference-fitted with the mounting holes.

[0015] The structure of inserting the connecting rod into the mounting hole with an interference fit further improves the ease of connection between the insulation substrate and the anchoring assembly.

[0016] In some embodiments, a snap-fit ​​block is formed at the connection between the connecting rod and the anchor body, and a snap-fit ​​groove is opened on the side of the mounting hole near the anchor assembly, and the snap-fit ​​block is embedded in the snap-fit ​​groove and engages with the snap-fit ​​groove.

[0017] The structure of snap-fit ​​blocks and snap-fit ​​slots improves the connection stability between the anchoring components and the insulation substrate.

[0018] In some embodiments, the anchor body has an internal cavity, and the aerogel layer is embedded within the cavity.

[0019] By forming a cavity within the anchor body to accommodate the aerogel layer, stable insulation of heat transfer between the connecting rod and the anchor bolt is ensured.

[0020] In some embodiments, the thickness of the aerogel layer is 5-8 mm, and the thermal conductivity is ≤0.020 W / (m·K).

[0021] In some embodiments, the thermal insulation substrate has a riveting groove on one side and a riveting block on the other side, and two adjacent thermal insulation substrates are fixed by riveting the riveting groove and the riveting block.

[0022] The riveting and fixing of the insulation substrates through the riveting groove and riveting block improves the convenience and stability of the connection.

[0023] In some embodiments, grooves are provided on both sides of the insulation substrate, and the grooves between adjacent insulation substrates are joined to form an air guide groove so that water vapor can be discharged through the air guide groove.

[0024] Water vapor is discharged through the air guide channel formed by the grooves between adjacent insulation substrates, ensuring that the insulation substrates do not fail due to moisture.

[0025] In some embodiments, the expanded polytetrafluoroethylene layer is laminated to the outer surface of the thermal insulation substrate by a hot-pressing process, and the mesh fabric layer is laminated to the surface of the expanded polytetrafluoroethylene layer by a hot-pressing process.

[0026] In some embodiments, the water vapor transmission rate of the expanded polytetrafluoroethylene layer is ≥800 g / (m²). 2 •24h), seepage resistance pressure ≥1000Pa.

[0027] Based on the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0028] The modular insulation layer is fixedly connected to the wall via anchoring components. Each insulation substrate is connected to an anchoring component, and the aerogel layer on the anchoring component blocks heat transfer between the anchoring component and the insulation substrate, thus avoiding thermal bridge loss of the insulation substrate. Furthermore, a waterproof composite layer including expanded polytetrafluoroethylene, a mesh fabric layer, and a coating layer is set on the modular insulation layer to ensure waterproofing while allowing water vapor to escape. Since it is pre-composite to the insulation substrate, the installation process is simplified, and the problems of heat loss, structural moisture, and low construction efficiency can be solved. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the modular insulation layer of this utility model;

[0031] Figure 3 This is a cross-sectional view of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100 Modular insulation layer; 110 Insulation substrate; 111 Riveting block; 112 Riveting groove; 113 Groove; 114 Air guide groove; 150 Mounting hole; 151 Snap-fit ​​groove; 200 Anchoring component; 210 Anchoring body; 211 Receiving cavity; 212 Aerogel layer; 220 Anchor bolt; 230 Connecting rod; 231 Snap-fit ​​block; 300 Waterproof composite layer; 310 Expanded polytetrafluoroethylene layer; 320 Mesh fabric layer; 330 Coating layer. Detailed Implementation

[0034] To facilitate understanding of this utility model, the specific embodiments of this utility model will be described in more detail below with reference to the accompanying drawings.

[0035] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0036] Unless otherwise stated or defined, the term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0037] It should be noted that in this article, "fixed to" or "connected to" can mean directly fixed to or connected to a component, or indirectly fixed to or connected to a component.

[0038] like Figure 1-3 As shown, the building exterior wall thermal insulation structure provided in this embodiment includes a modular insulation layer 100 and a waterproof composite layer 300. The modular insulation layer 100 includes a plurality of insulation substrates 110 riveted to each other. An anchoring component 200 is connected to each insulation substrate 110. The anchoring component 200 is used to fix it to the wall. The anchoring component 200 has an aerogel layer 212 built in it to block heat transfer between the wall and the insulation substrate 110.

[0039] The waterproof composite layer 300 includes an expanded polytetrafluoroethylene layer 310, a mesh fabric layer 320, and a coating layer 330. The expanded polytetrafluoroethylene layer 310 is disposed on the outer wall of the modular insulation layer 100, the mesh fabric layer 320 is disposed on the expanded polytetrafluoroethylene layer 310, and the coating layer 330 is applied to the mesh fabric layer 320 and penetrates into the pores of the mesh fabric layer 320 to form a crack-resistant layer.

[0040] In some embodiments, the anchoring assembly 200 includes an anchoring body 210, an anchor bolt 220, and a connecting rod 230. The anchor bolt 220 is provided on one side of the anchoring body 210 for fixed connection with the wall. The connecting rod 230 is provided on the other side of the anchoring body 210 and is connected to the thermal insulation substrate 110. An aerogel layer 212 is provided inside the anchoring body 210 to isolate the heat of the connecting rod 230 from the anchor bolt 220 and the wall.

[0041] By using anchor bolts 220 to fix the wall and connecting rods 230 to insulation substrate 110, the anchoring assembly 200 improves the ease of connection between insulation substrate 110 and wall.

[0042] In some embodiments, the heat insulation substrate 110 has a mounting hole 150, and the connecting rod 230 is inserted into the mounting hole 150 and is interference-fitted with the mounting hole 150.

[0043] The structure of the connecting rod 230 being inserted into the mounting hole 150 with an interference fit further improves the ease of connection between the insulation substrate 110 and the anchoring assembly 200.

[0044] In some embodiments, a snap-fit ​​block 231 is formed at the connection between the connecting rod 230 and the anchor body 210, and a snap-fit ​​groove 151 is opened on the side of the mounting hole 150 near the anchor assembly 200, and the snap-fit ​​block 231 is embedded in the snap-fit ​​groove 151 and engages with the snap-fit ​​groove 151.

[0045] The connection stability between the anchoring component 200 and the insulation substrate 110 is improved by the snap-fit ​​structure of the snap-fit ​​block 231 and the snap-fit ​​groove 151.

[0046] In some embodiments, the anchoring body 210 has a receiving cavity 211 inside, and the aerogel layer 212 is built into the receiving cavity 211.

[0047] By forming a cavity 211 within the anchor body 210 to accommodate the aerogel layer 212, it is ensured that heat transfer between the connecting rod 230 and the anchor bolt 220 can be stably isolated.

[0048] In some embodiments, the aerogel layer 212 has a thickness of 5-8 mm and a thermal conductivity ≤0.020 W / (m·K).

[0049] In some embodiments, the thermal insulation substrate 110 has a riveting groove 112 on one side and a riveting block 111 on the other side, and two adjacent thermal insulation substrates 110 are fixed by riveting the riveting groove 112 and the riveting block 111.

[0050] The riveting and fixing of the rivet groove 112 and the rivet block 111 improves the convenience and stability of the connection between the thermal insulation substrates 110.

[0051] In some embodiments, grooves 113 are provided on both sides of the heat insulation substrate 110, and the grooves 113 between adjacent heat insulation substrates 110 are joined to form an air guide groove 114 so that water vapor can be discharged through the air guide groove 114.

[0052] Water vapor is discharged through the air guide groove 114 formed by the grooves 113 between adjacent insulation substrates 110, ensuring that the insulation substrates 110 will not fail due to moisture.

[0053] In some embodiments, the expanded polytetrafluoroethylene layer 310 is laminated to the outer wall surface of the thermal insulation substrate 110 by a hot-pressing process, and the mesh fabric layer 320 is laminated to the surface of the expanded polytetrafluoroethylene layer 310 by a hot-pressing process.

[0054] In some embodiments, the water vapor transmission rate of the expanded polytetrafluoroethylene layer 310 is ≥800 g / (m²). 2 •24h), seepage resistance pressure ≥1000Pa.

[0055] The building exterior wall thermal insulation structure provided in this embodiment, compared with the prior art, is fixedly connected to the wall by anchor components 200. Each insulation substrate 110 of the modular insulation layer 100 is connected to the anchor components 200. The aerogel layer 212 on the anchor components 200 blocks the heat transfer between the anchor components 200 and the insulation substrate 110, thereby avoiding thermal bridge loss of the insulation substrate 110. Furthermore, a waterproof composite layer 300 including an expanded polytetrafluoroethylene layer 310, a mesh cloth layer 320, and a coating layer 330 is provided on the modular insulation layer 100 to ensure waterproofing while allowing water vapor to escape. Since it is pre-composite on the insulation substrate 110, the installation process is simplified, and the problems of heat loss, structural dampness, and low construction efficiency can be solved.

[0056] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A thermal insulation structure for building exterior walls, characterized in that, It includes a modular insulation layer (100) and a waterproof composite layer (300). The modular insulation layer (100) includes a plurality of insulation substrates (110) riveted to each other. An anchoring component (200) is connected to each insulation substrate (110). The anchoring component (200) is used to fix it to the wall. The anchoring component (200) has an aerogel layer (212) built in it to block heat transfer between the wall and the insulation substrate (110). The waterproof composite layer (300) includes an expanded polytetrafluoroethylene layer (310), a mesh fabric layer (320), and a coating layer (330). The expanded polytetrafluoroethylene layer (310) is disposed on the outer wall of the modular insulation layer (100). The mesh fabric layer (320) is disposed on the expanded polytetrafluoroethylene layer (310). The coating layer (330) is applied to the mesh fabric layer (320) and penetrates into the pores of the mesh fabric layer (320) to form a crack-resistant layer.

2. The building exterior wall thermal insulation structure as described in claim 1, characterized in that, The anchoring assembly (200) includes an anchoring body (210), an anchor bolt (220), and a connecting rod (230). The anchor bolt (220) is provided on one side of the anchoring body (210) for fixed connection with the wall. The connecting rod (230) is provided on the other side of the anchoring body (210) and is connected to the thermal insulation substrate (110). An aerogel layer (212) is provided inside the anchoring body (210) to isolate the heat of the connecting rod (230) from being transferred to the anchor bolt (220) and the wall.

3. The building exterior wall thermal insulation structure as described in claim 2, characterized in that, The heat insulation substrate (110) has a mounting hole (150), and the connecting rod (230) is inserted into the mounting hole (150) and is interference-fitted with the mounting hole (150).

4. The building exterior wall thermal insulation structure as described in claim 3, characterized in that, A snap-fit ​​block (231) is formed at the connection between the connecting rod (230) and the anchor body (210). A snap-fit ​​groove (151) is opened on the side of the mounting hole (150) near the anchor assembly (200). The snap-fit ​​block (231) is embedded in the snap-fit ​​groove (151) and engages with the snap-fit ​​groove (151).

5. The building exterior wall thermal insulation structure as described in any one of claims 2-4, characterized in that, The anchor body (210) has a cavity (211) inside, and the aerogel layer (212) is built into the cavity (211).

6. The building exterior wall thermal insulation structure as described in claim 5, characterized in that, The aerogel layer (212) has a thickness of 5-8 mm and a thermal conductivity of ≤0.020 W / (m·K).

7. The building exterior wall thermal insulation structure as described in any one of claims 1-4, characterized in that, The thermal insulation substrate (110) has a riveting groove (112) on one side and a riveting block (111) on the other side. Two adjacent thermal insulation substrates (110) are fixed by riveting the riveting groove (112) and the riveting block (111).

8. The building exterior wall thermal insulation structure as described in claim 7, characterized in that, The heat insulation substrate (110) has grooves (113) on both sides, and the grooves (113) between adjacent heat insulation substrates (110) are joined to form an air guide groove (114) so ​​that water vapor can be discharged through the air guide groove (114).

9. The building exterior wall thermal insulation structure as described in any one of claims 1-4, characterized in that, The expanded polytetrafluoroethylene layer (310) is laminated to the outer wall surface of the thermal insulation substrate (110) by a hot pressing process, and the mesh fabric layer (320) is laminated to the surface of the expanded polytetrafluoroethylene layer (310) by a hot pressing process.

10. The building exterior wall thermal insulation structure as described in claim 9, characterized in that, The water vapor transmission rate of the expanded polytetrafluoroethylene layer (310) is ≥800 g / (m²). 2 •24h), seepage resistance pressure ≥1000Pa.

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