Outer wall waterproof structure

Abstract

The utility model relates to the technical field of building outer wall waterproofing, and discloses an outer wall waterproof structure which comprises a first externally-hung wall plate, a second externally-hung wall plate, a sealing assembly and a supporting assembly. The first externally-hung wall plate and the second externally-hung wall plate are arranged at intervals in the vertical direction, an extension part is arranged on the side of the second externally-hung wall plate, a pressure reduction cavity is formed between the first externally-hung wall plate and the second externally-hung wall plate, a first opening is formed in the front end of the pressure reduction cavity, and a second opening is formed in the rear end of the pressure reduction cavity. The horizontal height of the second opening is greater than that of the first opening; the sealing assembly is arranged in the pressure reduction cavity and comprises a first sealing layer and a second sealing layer, the first sealing layer is arranged at the first opening, and the second sealing layer is arranged at the second opening; the supporting assembly is arranged between the first outer hanging wall plate and the second outer hanging wall plate and used for reinforcing the first outer hanging wall plate and the second outer hanging wall plate, one end of the supporting assembly is connected with the first outer hanging wall plate, and the other end of the supporting assembly is connected with the extending part.

Description

Technical Field

[0001] The utility model relates to the technical field of building exterior wall waterproofing, in particular to an exterior wall waterproof structure. Background Art

[0002] Building exterior wall waterproofing is a partial waterproofing project to ensure that the structure of the building is not invaded by water and the internal space is not damaged by water. It occupies an important position in the entire building project and involves many exterior wall structures such as the basement exterior wall and the housing exterior wall of the building. The function of exterior wall waterproofing is to prevent the leakage of rainwater and domestic water and the erosion of groundwater within the design service life of the building or structure, ensure that the building structure and internal space are not damaged, and provide a comfortable and safe living environment for people.

[0003] At present, most existing building exterior walls are straight structures. The upper and lower precast wall panels are bonded together by high-strength grouting material, and the bonding is firm and dense. The dense degree of the grouting material is used to block the rainwater leakage of the exterior wall. However, this method has great defects. It is difficult to judge and detect the dense degree of the grouting material between the upper and lower precast exterior wall panels, and it cannot achieve a good waterproof effect. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is that in the prior art, the upper and lower precast wall panels are firmly bonded by high-strength grouting material, and it is difficult to judge and detect the dense degree of the grouting material between the upper and lower precast exterior wall panels, resulting in poor waterproof effect.

[0005] To solve the above technical problems, the utility model provides an exterior wall waterproof structure, which includes a first exterior wall panel, a second exterior wall panel, a sealing component and a supporting component; the first exterior wall panel and the second exterior wall panel are arranged at intervals in the vertical direction, an extension part for forming the ground is arranged beside the second exterior wall panel, and a decompression cavity is formed between the first exterior wall panel and the second exterior wall panel. A first opening is arranged at the front end of the decompression cavity, and a second opening is arranged at the rear end of the decompression cavity. The horizontal height of the second opening is greater than that of the first opening; the sealing component is arranged in the decompression cavity, and the sealing component includes a first sealing layer and a second sealing layer. The first sealing layer is arranged at the first opening to prevent outdoor accumulated water from entering the decompression cavity, and the second sealing layer is arranged at the second opening to prevent indoor accumulated water from entering the decompression cavity; the supporting component is arranged between the first exterior wall panel and the second exterior wall panel to reinforce the first exterior wall panel and the second exterior wall panel. One end of the supporting component is connected to the first exterior wall panel, and the other end is connected to the extension part.

[0006] In one embodiment, the supporting component includes a first reinforcement member, one end of the first reinforcement member is arranged inside the first exterior wall panel, and the other end is arranged on the end face of the first exterior wall panel close to the indoor side.

[0007] In one embodiment, the support assembly further includes a second reinforcement member. One end of the second reinforcement member is disposed within the extension portion, and the second reinforcement member extends into the wall body of the second external wall panel. The other end is disposed on the end face of the second external wall panel near the interior and is connected to the first reinforcement member.

[0008] In one embodiment, the number of the first reinforcement members is plural, and the plural first reinforcement members are spaced apart along the length direction of the first external wall panel.

[0009] In one embodiment, the number of the second reinforcement members is plural, the plural second reinforcement members are spaced apart along the length direction of the second external wall panel, and the number of the first reinforcement members is the same as that of the second reinforcement members.

[0010] In one embodiment, a precast beam for supporting the extension portion is further disposed at the bottom of the extension portion, and an elastic layer is disposed on the end face of the precast beam near the second external wall panel.

[0011] In one embodiment, the first sealing layer includes a weather-resistant sealant layer and a foam strip. The weather-resistant sealant layer is disposed at the first opening for plugging the first opening, the foam strip is disposed within the decompression cavity, and the foam strip is connected to the weather-resistant sealant layer.

[0012] In one embodiment, the second sealing layer includes a cross-sealing adhesive layer and a rubber strip. The cross-sealing adhesive layer is disposed at the second opening for plugging the second opening, the rubber strip is disposed within the decompression cavity, and the rubber strip is connected to the cross-sealing adhesive layer.

[0013] In one embodiment, a waterproof reinforcement layer is disposed on the outer walls of both the first external wall panel and the second external wall panel.

[0014] Compared with the prior art, the beneficial effects of the external wall waterproof structure of the embodiment of the present utility model are as follows: 1) The first external hanging wall panel and the second external hanging wall panel are arranged at intervals in the vertical direction, and a decompression cavity is formed therebetween. The first external hanging wall panel and the second external hanging wall panel serve as the main load-bearing and enclosure structures of the external wall, and cooperate with the sealing component and the support component to jointly achieve the functions of waterproofing and decompression; 2) The sealing component is used to block the decompression cavity. The decompression cavity is formed by the space between the first external hanging wall panel and the second external hanging wall panel. A first opening is provided at the front end of the decompression cavity, and a second opening is provided at the rear end, and the horizontal height of the second opening is higher than that of the first opening, so that the accumulated water outdoors cannot enter the room through the decompression cavity. At the same time, the design of the decompression cavity can relieve the pressure on the external wall to a certain extent and improve the durability of the external wall; 3) The support component is arranged between the first external hanging wall panel and the second external hanging wall panel, one end is connected to the first external hanging wall panel, and the other end is connected to the extension part at the indoor end of the second external hanging wall panel. The support component strengthens the first external hanging wall panel and the second external hanging wall panel, improves the stability and load-bearing capacity of the overall structure. At the same time, the design of the support component also takes into account the coordination with the decompression cavity to ensure the integrity and functionality of the structure. The utility model can effectively prevent outdoor rainwater and surface water from leaking into the room, has a good waterproof effect, and the waterproof structure of this design is very ingenious and simple, without additionally increasing the cost and investment of the prefabricated wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the external wall waterproof structure of the embodiment of the present utility model.

[0016] Figure 2 is a schematic diagram of the decompression cavity of the embodiment of the present utility model.

[0017] In the figure, 1. The first external hanging wall panel; 11. Waterproof strengthening layer; 2. The second external hanging wall panel; 3. Sealing component; 31. The first sealing layer; 311. Weather-resistant sealant layer; 312. Foam strip; 32. The second sealing layer; 321. Cross sealing glue layer; 322. Rubber strip; 4. Support component; 41. The first reinforcement member; 42. The second reinforcement member; 5. Decompression cavity; 51. The first opening; 52. The second opening; 6. Extension part; 61. Prefabricated beam; 62. Elastic layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0019] In the description of the present utility model, it should be understood that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. 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 a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "height", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. in the present utility model is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 construed as a limitation of the present utility model.

[0021] In the description of the present utility model, it should be understood that the terms "first" and "second" in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0022] Such as Figures 1 to 2As shown in the figure, the utility model preferably provides an exterior wall waterproof structure, which includes a first external hanging wall panel 1, a second external hanging wall panel 2, a sealing component 3 and a supporting component 4; the first external hanging wall panel 1 and the second external hanging wall panel 2 are arranged at intervals in the vertical direction, an extension part 6 for forming an indoor ground is arranged on the end face of the second external hanging wall panel 2 close to the indoor side, and a decompression cavity 5 is formed between the first external hanging wall panel 1 and the second external hanging wall panel 2. A first opening 51 is arranged at the front end of the decompression cavity 5, and a second opening 52 is arranged at the rear end of the decompression cavity 5. The horizontal height of the second opening 52 is greater than that of the first opening 51; the sealing component 3 is arranged in the decompression cavity, and the sealing component 3 includes a first sealing layer 31 and a second sealing layer 32. The first sealing layer 31 is arranged at the first opening 51 to prevent outdoor accumulated water from entering the decompression cavity 5, and the second sealing layer 32 is arranged at the second opening 52 to prevent indoor accumulated water from entering the decompression cavity 5; the supporting component 4 is arranged between the first external hanging wall panel 1 and the second external hanging wall panel 2 to reinforce the first external hanging wall panel 1 and the second external hanging wall panel 2. One end of the supporting component 4 is connected to the first external hanging wall panel 1, and the other end is connected to the extension part 6.

[0023] Based on the above technical features, through the arrangement of the first external hanging wall panel 1 and the second external hanging wall panel 2, the first external hanging wall panel 1 and the second external hanging wall panel 2 are arranged at intervals in the vertical direction, and a decompression cavity 5 is formed therebetween. The first external hanging wall panel 1 and the second external hanging wall panel 2 serve as the main load-bearing and enclosure structures of the exterior wall, and at the same time cooperate with the sealing component 3 and the supporting component 4 to jointly realize the waterproof and decompression functions; through the arrangement of the sealing component 3, the sealing component 3 is used to block the decompression cavity 5. The decompression cavity 5 is formed by the space between the first external hanging wall panel 1 and the second external hanging wall panel 2. A first opening 51 is arranged at the front end of the decompression cavity 5, and a second opening 52 is arranged at the rear end. The horizontal height of the second opening 52 is higher than that of the first opening 51, so that outdoor accumulated water cannot enter the indoor through the decompression cavity 5. At the same time, the design of the decompression cavity 5 can relieve the pressure on the exterior wall to a certain extent and improve the durability of the exterior wall; through the arrangement of the supporting component 4, the supporting component 4 is arranged between the first external hanging wall panel 1 and the second external hanging wall panel 2, one end is connected to the first external hanging wall panel 1, and the other end is connected to the extension part 6 at the indoor end of the second external hanging wall panel 2. The supporting component 4 is used to reinforce the first external hanging wall panel 1 and the second external hanging wall panel 2, improve the stability and load-bearing capacity of the overall structure. At the same time, the design of the supporting component 4 also takes into account the coordination with the decompression cavity 5 to ensure the integrity and functionality of the structure.

[0024] As some embodiments of the present utility model, such as Figure 1As shown in the figure, the support assembly 4 includes a first reinforcement member 41. One end of the first reinforcement member 41 is disposed within the first external wall panel 1, and the other end is disposed on the end face of the first external wall panel 1 close to the interior. The main function of the first reinforcement member 41 is to increase the overall rigidity and load-bearing capacity of the external wall panel, prevent deformation or damage caused by external factors such as wind pressure and earthquake. By connecting the external wall panel to the interior structure, the first reinforcement member 41 can ensure the stability of the wall panel in the horizontal and vertical directions.

[0025] As some embodiments of the present utility model, as Figure 1 shown in the figure, the support assembly 4 further includes a second reinforcement member 42. One end of the second reinforcement member 42 is disposed within the extension portion 6, and the second reinforcement member 42 extends into the wall body of the second external wall panel 2. The other end is disposed on the end face of the second external wall panel 2 close to the interior and is connected to the first reinforcement member 41. The second reinforcement member 42 not only enhances the structural strength of the second external wall panel 2 itself, but also further strengthens the connection between the wall panel and the main structure through its design of extending into the wall body. It effectively transfers the load borne by the external wall panel to the interior structure or other stable support points, and cooperates with the first reinforcement member 41 to ensure the stability and safety of the entire exterior wall system.

[0026] As some embodiments of the present utility model, as Figure 1 shown in the figure, the number of the first reinforcement members 41 is multiple, and the multiple first reinforcement members 41 are arranged at intervals along the length direction of the first external wall panel 1. The multiple first reinforcement members 41 arranged at intervals along the length direction can effectively disperse the load borne by the first external wall panel 1 to multiple support points, which helps to reduce the stress concentration borne by a single reinforcement member and improve the load-bearing capacity and durability of the entire wall panel.

[0027] As some embodiments of the present utility model, as Figure 1 shown in the figure, the number of the second reinforcement members 42 is multiple, and the second reinforcement members 42 are arranged at intervals along the length direction of the second external wall panel 2, and the number of the first reinforcement members 41 is the same as that of the second reinforcement members 42. The number of the first reinforcement members 41 and the second reinforcement members 42 is the same and they are arranged at intervals along the length directions of their respective external wall panels. This symmetric design helps to maintain the structural balance of the entire exterior wall system. It ensures that the two side wall panels can evenly distribute the load when subjected to external forces, reducing stress concentration and deformation.

[0028] As some embodiments of the present utility model, as Figure 1As shown, a precast beam 61 for supporting the extension part 6 is further provided at the bottom of the extension part 6, and an elastic layer 62 is provided on one end face of the precast beam 61 close to the second external wall panel 2. The precast beam 61 serves as a support structure for the extension part 6 and can bear the weight of the extension part 6 itself and the loads it bears. The rigidity and strength of the precast beam 61 ensure the stability and reliability of supporting the extension part 6. At the same time, the setting of the elastic layer 62 effectively improves the contact conditions between the precast beam 61 and the second external wall panel 2, avoiding stress concentration and local damage caused by hard contact, making the connection between the two softer and more uniform, and improving the overall durability and safety.

[0029] As some embodiments of the present utility model, as Figure 2 shown, the first sealing layer 31 includes a weather-resistant sealant layer 311 and a foam strip 312. The weather-resistant sealant layer 311 is provided at the first opening 51 for blocking the first opening 51, and the foam strip 312 is provided in the decompression cavity 5, and the foam strip 312 is connected to the weather-resistant sealant layer 311. Through the setting of the weather-resistant sealant layer 311 and the foam strip 312, it effectively prevents rainwater and surface water outdoors from entering the decompression cavity 5 through the first opening 51. Among them, the weather-resistant sealant layer 311 has excellent weather resistance, aging resistance and elasticity, and can maintain a stable sealing effect for a long time. Even in harsh external environmental conditions, it can effectively prevent leakage. The foam strip 312 can fill some voids in the cavity, preventing structural deformation or cracks caused by air convection or temperature changes. At the same time, its good compressibility and resilience can also provide stable support and buffering for the weather-resistant sealant layer 311.

[0030] As some embodiments of the present utility model, as Figure 2 shown, the second sealing layer 32 includes a cross-sealing adhesive layer 321 and a rubber strip 322. The cross-sealing adhesive layer 321 is provided at the second opening 52 for blocking the second opening 52, and the rubber strip 322 is provided in the decompression cavity 5, and the rubber strip 322 is connected to the cross-sealing adhesive layer 321. The cross-sealing adhesive layer 321 is provided at the second opening 52, and its main function is to block the second opening 52 to prevent external moisture and other impurities from entering the room through the second opening 52. The rubber strip 322 is provided in the decompression cavity 5 and is connected to the cross-sealing adhesive layer 321. It mainly plays a role of filling, supporting and buffering, helping to maintain the sealing performance and stability of the decompression cavity 5, and further improving the stability of the second sealing layer 32.

[0031] In some embodiments of the present utility model, a waterproof strengthening layer 11 is provided on the outer walls of the first external wall panel 1 and the second external wall panel 2. Through the provision of the waterproof strengthening layer 11, it can effectively prevent external moisture such as rainwater and moisture from penetrating into the building interior, protect the stability of the building structure and the dryness of the interior space. The waterproof strengthening layer 11 not only has a waterproof function, but can also resist the erosion of environmental factors such as ultraviolet rays and temperature changes on the wall panel material to a certain extent, thereby extending the service life of the wall panel.

[0032] In summary, compared with the prior art, the external wall waterproof structure provided by the embodiments of the present utility model has the following beneficial effects: 1) The first external wall panel 1 and the second external wall panel 2 are spaced apart in the vertical direction, and a pressure relief cavity 5 is formed therebetween. The first external wall panel 1 and the second external wall panel 2 serve as the main load-bearing and enclosing structures of the external wall, and cooperate with the sealing assembly 3 and the support assembly 4 to jointly achieve the functions of waterproofing and pressure relief; 2) The sealing assembly 3 is used to block the pressure relief cavity 5. The pressure relief cavity 5 is formed by the space between the first external wall panel 1 and the second external wall panel 2. A first opening 51 is provided at the front end of the pressure relief cavity 5, and a second opening 52 is provided at the rear end, and the horizontal height of the second opening 52 is higher than that of the first opening 51, so that the accumulated water outdoors cannot enter the room through the pressure relief cavity 5. At the same time, the design of the pressure relief cavity 5 can relieve the pressure on the external wall to a certain extent and improve the durability of the external wall; 3) The support assembly 4 is arranged between the first external wall panel 1 and the second external wall panel 2, one end is connected to the first external wall panel 1, and the other end is connected to the extension part 6 near the indoor end of the second external wall panel 2. The support assembly 4 strengthens the first external wall panel 1 and the second external wall panel 2, improves the stability and load-bearing capacity of the overall structure. At the same time, the design of the support assembly 4 also takes into account the coordination with the pressure relief cavity 5 to ensure the integrity and functionality of the structure. The present utility model can effectively prevent outdoor rainwater and surface water from leaking into the room, has a good waterproof effect, and the waterproof structure of this design is very ingenious and simple, without additionally increasing the cost and investment of the assembled wall.

[0033] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present utility model.

Claims

1. An exterior wall waterproof structure, characterized in that, It includes a first external wall panel, a second external wall panel, a sealing assembly and a support assembly; The first external wall panel and the second external wall panel are arranged at intervals in the vertical direction. There is an extension part for forming the ground beside the second external wall panel. A pressure relief cavity is formed between the first external wall panel and the second external wall panel. A first opening is provided at the front end of the pressure relief cavity, and a second opening is provided at the rear end of the pressure relief cavity. The horizontal height of the second opening is greater than that of the first opening; The sealing assembly is arranged in the pressure relief cavity. The sealing assembly includes a first sealing layer and a second sealing layer. The first sealing layer is arranged at the first opening to prevent outdoor accumulated water from entering the pressure relief cavity, and the second sealing layer is arranged at the second opening to prevent indoor accumulated water from entering the pressure relief cavity; The support assembly is arranged between the first external wall panel and the second external wall panel to reinforce the first external wall panel and the second external wall panel. One end of the support assembly is connected to the first external wall panel, and the other end is connected to the extension part.

2. The exterior wall waterproof structure according to claim 1, characterized in that, The support assembly includes a first reinforcement member. One end of the first reinforcement member is arranged inside the first external wall panel, and the other end is arranged on the end face of the first external wall panel close to the indoor side.

3. The exterior wall waterproof structure according to claim 2, characterized in that, The support assembly further includes a second reinforcement member. One end of the second reinforcement member is arranged inside the extension part, and the second reinforcement member extends into the wall body of the second external wall panel. The other end is arranged on the end face of the second external wall panel close to the indoor side and is connected to the first reinforcement member.

4. The exterior wall waterproof structure according to claim 3, characterized in that, The number of the first reinforcement members is multiple, and the multiple first reinforcement members are arranged at intervals along the length direction of the first external wall panel.

5. The exterior wall waterproof structure according to claim 4, characterized in that, The number of the second reinforcement members is multiple, and the second reinforcement members are arranged at intervals along the length direction of the second external wall panel. The number of the first reinforcement members is the same as that of the second reinforcement members.

6. The exterior wall waterproof structure according to claim 1, characterized in that, A precast beam for supporting the extension part is further arranged at the bottom of the extension part, and an elastic layer is arranged on the end face of the precast beam close to the second external wall panel.

7. The exterior wall waterproof structure according to claim 1, characterized in that The first sealing layer includes a weather-resistant sealant layer and a foam strip. The weather-resistant sealant layer is arranged at the first opening to block the first opening. The foam strip is arranged in the pressure relief cavity, and the foam strip is connected to the weather-resistant sealant layer.

8. The exterior wall waterproof structure according to claim 1, characterized in that, The second sealing layer includes a cross-sealing glue layer and a rubber strip. The cross-sealing glue layer is arranged at the second opening to block the second opening. The rubber strip is arranged in the pressure relief cavity, and the rubber strip is connected to the cross-sealing glue layer.

9. The exterior wall waterproof structure according to claim 1, characterized in that, A waterproof strengthening layer is arranged on the outer walls of the first external wall panel and the second external wall panel.

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