Waterproof breathable layer structure of building outer wall

Abstract

The utility model relates to a waterproof breathable layer structure of a building outer wall, which belongs to the technical field of waterproof breathable layer structures and comprises an outer wall body, and a fixing layer is fixed on the upper surface of the outer wall body through hot melt adhesive bonding. According to the waterproof breathable layer structure of the building outer wall, when rainwater falls on the surface of the outer wall, the rainwater is firstly intercepted by the outermost protective layer, the rainwater slides down along gaps in the protective layers and is difficult to enter the outer wall body, and even if a small amount of water permeates into the functional layer, the rainwater can be obstructed due to the existence of the functional layer; meanwhile, moisture generated in the wall body can be diffused outwards through the inner side layer and the fixing layer, it is ensured that water molecules cannot penetrate through and gas molecules can freely circulate, and therefore various problems caused by accumulated liquid in the outer wall body are avoided, external moisture erosion can be effectively resisted, and the moisture-proof outer wall can be used for building construction. And smooth emission of moisture in the wall body can be promoted.

Description

Technical Field

[0001] This utility model relates to the technical field of waterproof and breathable layer structure, specifically a waterproof and breathable layer structure for building exterior walls. Background Technology

[0002] With the acceleration of urbanization, people's requirements for living environment are increasing. The waterproof and breathable performance of building exterior walls has become one of the key concerns. Waterproof and breathable layer structures are set on the outside of building exterior walls to waterproof and allow air to pass through.

[0003] For example, Chinese patent CN217500602U discloses a waterproof structure for building exterior walls, including a concrete slab, a waterproof mechanism, and a sealing mechanism. The concrete slab has polymer mortar on its right side, a block adhesive on the right side of the polymer mortar, a self-insulating block bonded to the right end of the block adhesive, an EVA waterproof board on the right side of the self-insulating block, and corrosion-resistant boards on the lower right side of both the self-insulating block and the lower left side of the concrete slab. The waterproof mechanism is located on the right side of the corrosion-resistant board. The sealing mechanism is located on the right end of the waterproof mechanism, which includes a water-blocking plate and a drainage channel. The water-blocking plate is located on the right side of the corrosion-resistant board. This waterproof structure for building exterior walls can automatically drain accumulated water at the bottom of the building exterior wall, improving the waterproof effect of the building exterior wall and preventing external debris from blocking the drainage channel, ensuring normal drainage.

[0004] While the aforementioned patent improves the waterproofing of building exterior walls and prevents external debris from clogging drainage channels, ensuring normal drainage, the decorative panel in this patent is placed on the outside of the EVA waterproof board. The decorative panel can block the free flow of water vapor molecules, which will affect the problem of moisture discharge from inside the wall. Long-term accumulation may lead to dampness and mold growth on the wall, seriously affecting the building quality and service life. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a waterproof and breathable layer structure for building exterior walls. It not only effectively resists external moisture erosion but also promotes the smooth discharge of moisture inside the wall. This solves the problem that when decorative panels are placed on the outside of EVA waterproof boards, they can block the free flow of water vapor molecules, which affects the discharge of moisture inside the wall. Over time, this can lead to dampness and mold growth on the wall, seriously affecting the building's quality and service life.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waterproof and breathable layer structure for building exterior walls, comprising an exterior wall body, wherein a fixing layer is bonded and fixed to the upper surface of the exterior wall body by hot melt adhesive, and a connecting mechanism is provided on the upper surface of the fixing layer;

[0007] The connecting mechanism includes an inner layer, a functional layer, a protective layer, four fixing holes, four metal retaining rings, four rubber rings, and four fixing bolts. The inner layer is bonded to the upper surface of the fixing layer with hot melt adhesive. The functional layer is bonded to the upper surface of the inner layer with hot melt adhesive. The protective layer is bonded to the upper surface of the functional layer with hot melt adhesive. The four fixing holes are all opened through the four corners of the upper surfaces of the inner layer, the functional layer, and the protective layer. The four rubber rings are all placed on the lower surfaces of the four metal retaining rings, and the lower surfaces of the four rubber rings are all in contact with the upper surface of the protective layer.

[0008] By adopting this technical solution, not only can external moisture erosion be effectively resisted, but also the moisture inside the wall can be smoothly discharged.

[0009] Furthermore, all four fixing bolts are slidably inserted into the interior of the four metal retaining rings and the four rubber rings, and all four fixing bolts are slidably inserted into the interior of the four fixing holes.

[0010] By adopting this technical solution, the stability of fixing the inner layer, functional layer and protective layer to the surface of the fixing layer can be improved by using four metal retaining rings.

[0011] Furthermore, a fixing groove is provided at each of the four corners of the upper surface of the outer wall body, and a metal threaded cylinder is provided inside each of the four fixing grooves. The outer sides of the bottom ends of the four fixing bolts are threaded into the interior of the four metal threaded cylinders.

[0012] By adopting this technical solution, four metal threaded cylinders can be fixed inside four fixing slots.

[0013] Furthermore, insertion holes are provided at the four corners of the upper surface of the fixing layer, and one end of each of the four fixing bolts is inserted into the four insertion holes via a groove.

[0014] By adopting this technical solution, all four fixing bolts are slidably inserted into the four insertion holes.

[0015] Furthermore, the inner layer is a second microporous silicone film layer, and the fixing layer is a first microporous silicone film layer.

[0016] By adopting this technical solution, the inner layer and the fixed layer ensure that water molecules cannot penetrate while gas molecules can flow freely.

[0017] Furthermore, the functional layer is a polyurethane foam layer.

[0018] By adopting this technical solution, the functional layer has low density and light weight, and has excellent thermal insulation performance, which helps to maintain stable indoor temperature.

[0019] Furthermore, the protective layer is a polyester fiber cloth layer.

[0020] By adopting this technical solution, the protective layer has good wear resistance and self-cleaning function, which can effectively extend the material life.

[0021] Furthermore, the fixing hole and the fixing bolt are fitted with a gap, and the fixing bolt moves linearly up and down inside the fixing hole.

[0022] By adopting this technical solution, the inner layer, functional layer and protective layer can be fixed to the upper surface of the fixed layer through the cooperation of four fixing holes and four fixing bolts.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] The building's exterior wall waterproof and breathable layer structure works in a way that prevents rainwater from penetrating the building's interior. When rainwater falls on the exterior wall surface, it is first trapped by the outermost protective layer, which is made of polyester fiber cloth. Rainwater then slides down along the gaps in the protective layer, making it difficult for it to enter the interior of the exterior wall. Even if a small amount of water penetrates to the functional layer, it is blocked by the presence of this layer. The functional layer is made of polyurethane foam, which has low density, is lightweight, and has excellent thermal insulation properties, helping to maintain a stable indoor temperature and preventing it from penetrating the building structure. Meanwhile, moisture generated inside the wall can diffuse outwards through the inner fixing layer. Both the inner and fixing layers are microporous silicone film layers, ensuring that water molecules cannot penetrate while gas molecules can circulate freely. This avoids various problems caused by liquid accumulation inside the exterior wall. This design allows the building to remain dry while also possessing strong weather resistance and aesthetic appeal. Furthermore, it not only effectively resists external moisture erosion but also promotes the smooth discharge of moisture from inside the wall. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the connection mechanism of this utility model;

[0027] Figure 3 This is a three-dimensional structural diagram of the inner layer, functional layer and protective layer of this utility model.

[0028] In the diagram: 1. Exterior wall body; 2. Fixing layer; 3. Connecting mechanism; 31. Inner layer; 32. Functional layer; 33. Protective layer; 34. Fixing hole; 35. Metal retaining ring; 36. Rubber ring; 37. Fixing bolt; 4. Fixing groove; 5. Metal threaded cylinder. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1 The waterproof and breathable layer structure of the building exterior wall in this embodiment includes an exterior wall body 1. A fixing layer 2 is bonded and fixed to the upper surface of the exterior wall body 1 by hot melt adhesive. A connecting mechanism 3 is provided on the upper surface of the fixing layer 2. The connecting mechanism 3 can not only effectively resist external moisture erosion, but also promote the smooth discharge of moisture inside the wall.

[0031] Please see Figures 2 to 3 In order to not only effectively resist external moisture erosion, but also promote the smooth discharge of moisture inside the wall, the connecting mechanism 3 in this embodiment includes an inner layer 31, a functional layer 32, a protective layer 33, four fixing holes 34, four metal retaining rings 35, four rubber rings 36 and four fixing bolts 37. The inner layer 31 is bonded and fixed to the upper surface of the fixing layer 2 by hot melt adhesive.

[0032] In this embodiment, the functional layer 32 is bonded and fixed to the upper surface of the inner layer 31 by hot melt adhesive, and the protective layer 33 is bonded and fixed to the upper surface of the functional layer 32 by hot melt adhesive. Four fixing holes 34 are all opened through the four corners of the upper surfaces of the inner layer 31, the functional layer 32 and the protective layer 33. Four rubber rings 36 are all placed on the lower surface of the four metal retaining rings 35, and the lower surface of the four rubber rings 36 is in contact with the upper surface of the protective layer 33.

[0033] In this embodiment, when rainwater falls on the surface of the exterior wall, it is first intercepted by the outermost protective layer 33 and slides down along the gaps in the protective layer 33, making it difficult to enter the interior of the exterior wall body 1. Even if a small amount of water penetrates into the functional layer 32, it will be blocked by the presence of the functional layer 32, preventing it from penetrating into the main body of the building. At the same time, the moisture generated inside the wall can be diffused outward through the inner layer 31 fixing layer 2, thereby avoiding various problems caused by liquid accumulation inside the exterior wall body 1. This design allows the building to remain dry while also having strong weather resistance and aesthetics. The inner layer 31, functional layer 32 and protective layer 33 can be bonded and fixed by hot melt adhesive. Then, four fixing holes 34 are opened through the upper surfaces of the inner layer 31, functional layer 32 and protective layer 33, and four fixing grooves 4 can be opened on the upper surface of the exterior wall body 1.

[0034] In this embodiment, the four fixing bolts 37 are slidably inserted into the interior of the four metal retaining rings 35 and the four rubber rings 36, and the four fixing bolts 37 are slidably inserted into the interior of the four fixing holes 34. Fixing grooves 4 are provided at the four corners of the upper surface of the outer wall body 1, and metal threaded cylinders 5 are provided inside the four fixing grooves 4. The outer sides of the bottom ends of the four fixing bolts 37 are threaded into the interior of the four metal threaded cylinders 5. Insertion holes are provided through the four corners of the upper surface of the fixing layer 2.

[0035] In this embodiment, the waterproofing and breathability of the exterior wall are significantly improved, effectively preventing the wall from getting damp and extending the service life of the building. Advanced material combinations and technologies are used to reduce production costs, enhance product competitiveness, simplify the construction process, reduce environmental pollution, and conform to the concept of green and sustainable development.

[0036] In this embodiment, the protective layer 33 is a high-strength polyester fiber cloth layer with a thickness of 0.5 mm, the functional layer 32 is a polyurethane foam layer with a density range of 40-80 kg / m³, and the inner layer 31 is a microporous silicone film with a thickness of 0.2 mm and a pore size of 1-10 nm. The specifications are customized according to the actual situation. The polyurethane foam layer has limited ability to block water vapor molecules, especially untreated or unmodified polyurethane foam. To a certain extent, polyurethane foam allows water vapor molecules to pass through.

[0037] In this embodiment, one end of each of the four fixing bolts 37 is slotted into the interior of the four insertion holes. The inner layer 31 is the second microporous silicone film layer, the fixing layer 2 is the first microporous silicone film layer, the functional layer 32 is the polyurethane foam layer, and the protective layer 33 is the polyester fiber cloth layer. The fixing hole 34 is fitted with the gap of the fixing bolt 37, and the fixing bolt 37 moves linearly up and down inside the fixing hole 34.

[0038] It should be noted that four metal threaded cylinders 5 are sequentially fixed inside the four fixing slots 4. Then, the fixing layer 2 can be glued to the upper surface of the outer wall body 1 with hot melt adhesive. Insertion holes are opened through the four corners of the upper surface of the fixing layer 2. Then, the inner layer 31 is glued to the upper surface of the fixing layer 2 with hot melt adhesive. Then, four metal retaining rings 35 and four rubber rings 36 are slidably inserted into the outside of the four fixing bolts 37. Then, the bottom ends of the four fixing bolts 37 are slidably inserted into the four fixing holes 34 and also slidably inserted into the four insertion holes. Finally, the bottom ends of the four fixing bolts 37 are threaded into the inside of the four metal threaded cylinders 5 to achieve fixation.

[0039] The working principle of the above embodiments is as follows:

[0040] When rainwater falls on the exterior wall surface, it is first intercepted by the outermost protective layer 33 and slides down along the gaps in the protective layer 33, making it difficult to penetrate into the interior of the exterior wall body 1. Even if a small amount of water penetrates to the functional layer 32, it will be blocked by the presence of the functional layer 32, preventing it from penetrating into the main building. At the same time, moisture generated inside the wall can diffuse outward through the inner layer 31 fixing layer 2, thus avoiding various problems caused by liquid accumulation inside the exterior wall body 1. This design allows the building to remain dry while also having strong weather resistance and aesthetics. The inner layer 31, functional layer 32, and protective layer 33 can be bonded and fixed using hot melt adhesive. Four fixing holes 3 are then made through the upper surfaces of the inner layer 31, functional layer 32, and protective layer 33. 4. Then, four fixing grooves 4 can be opened on the upper surface of the outer wall body 1, and four metal threaded cylinders 5 can be fixed in sequence inside the four fixing grooves 4. After that, the fixing layer 2 can be glued to the upper surface of the outer wall body 1 with hot melt adhesive, and insertion holes can be opened through the four corners of the upper surface of the fixing layer 2. Then, the inner layer 31 can be glued to the upper surface of the fixing layer 2 with hot melt adhesive. Then, four metal retaining rings 35 and four rubber rings 36 can be slid through the outside of four fixing bolts 37. Then, the bottom ends of the four fixing bolts 37 can be slid through the inside of four fixing holes 34, and also slid through the inside of four insertion holes. Finally, the bottom ends of the four fixing bolts 37 can be threaded into the inside of four metal threaded cylinders 5 to achieve fixation.

Claims

1. A waterproof and air-permeable layer structure for an exterior wall of a building, comprising an exterior wall body (1), characterized in that: The upper surface of the outer wall body (1) is fixed with a fixed layer (2) by hot melt adhesive, and the upper surface of the fixed layer (2) is provided with a connecting mechanism (3). The connecting mechanism (3) comprises an inner layer (31), a functional layer (32), a protective layer (33), four fixed holes (34), four metal retaining rings (35), four rubber rings (36) and four fixed bolts (37), the inner layer (31) is fixed on the upper surface of the fixed layer (2) by hot melt adhesive, the functional layer (32) is fixed on the upper surface of the inner layer (31) by hot melt adhesive, the protective layer (33) is fixed on the upper surface of the functional layer (32) by hot melt adhesive, four fixed holes (34) are provided on the upper surface of the inner layer (31), the functional layer (32) and the protective layer (33) at four corners, four rubber rings (36) are placed on the lower surface of four metal retaining rings (35), and the lower surface of the four rubber rings (36) is attached to the upper surface of the protective layer (33).

2. The waterproof and breathable layer structure of an exterior wall of a building according to claim 1, characterized in that: The four fixed bolts (37) are slidably inserted into the four metal retaining rings (35) and the four rubber rings (36), and the four fixed bolts (37) are slidably inserted into the four fixed holes (34).

3. The waterproof and air-permeable layer structure of an exterior wall of a building according to claim 1, characterized in that: The four corners of the upper surface of the outer wall body (1) are provided with fixed grooves (4), the inner surfaces of the four fixed grooves (4) are provided with metal threaded cylinders (5), and the outer sides of the bottom ends of the four fixed bolts (37) are threadedly connected to the inner surfaces of the four metal threaded cylinders (5).

4. The water-proof and air-permeable layer structure of an external wall of a building according to claim 1, characterized in that: The upper surface of the fixed layer (2) is provided with four insertion holes, and one end of the four fixed bolts (37) is slidably inserted into the four insertion holes.

5. The building exterior wall waterproof and breathable layer structure according to claim 1, characterized in that: The inner layer (31) is a second microporous silica gel film layer, and the fixed layer (2) is a first microporous silica gel film layer.

6. The building exterior wall waterproof and breathable layer structure according to claim 1, characterized in that: The functional layer (32) is a polyurethane foam plastic layer.

7. The building exterior wall waterproof and breathable layer structure according to claim 1, characterized in that: The protective layer (33) is a polyester fiber cloth layer.

8. The building exterior wall waterproof and air permeation layer structure according to claim 1, characterized in that: The gap between the fixed hole (34) and the fixed bolt (37) is matched, and the fixed bolt (37) moves linearly in the fixed hole (34).

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