Seepage-proof auxiliary frame sealing structure for special-shaped doors and windows

Abstract

The utility model discloses an anti-leakage auxiliary frame sealing structure for special-shaped doors and windows, and relates to the field of anti-leakage auxiliary frame sealing structures for doors and windows. The thermal insulation window comprises a window body, a wall body and a window frame, and is characterized in that the window body comprises the wall body, the window frame is arranged on the wall body, and the thermal insulation window is provided with a sealing structure, an outer thermal insulation layer, an inner thermal insulation layer, a waterproof mortar blocking layer, a window auxiliary frame, sealant, polystyrene foam and a window main frame. Rigid fixation of the auxiliary window frame and a splayed structure of the waterproof mortar synergistically enhance the adaptability of the hole, continuous filling of the polystyrene foam is combined with chamfer covering of the sealant to achieve dynamic sealing, and the staggered arrangement of the inner and outer heat preservation layers and the synergistic effect of installation gaps of the main frame and the auxiliary frame effectively absorb dimensional deviation. According to the structure, through material performance complementation and structure level optimization, the technical problems that in a traditional construction technology, due to size control deviation of special-shaped door and window openings, gaps between a window frame and the openings are not uniform, and leakage, hollowing and cracking are caused due to the fact that plugging materials are not densely filled are solved.

Description

Technical Field

[0001] This utility model relates to the field of sealing structure for waterproof subframes of doors and windows, specifically a sealing structure for waterproof subframes of irregularly shaped doors and windows. Background Technology

[0002] In the field of architecture, irregularly shaped exterior doors and windows, with their unconventional designs and spatial expressiveness, have become an important element of modern building facade design. These doors and windows, through non-standard geometric forms such as arcs, polygons, trapezoids, or free curves, break the visual inertia of traditional rectangular windows, serving both as a focal point of the building facade and as an organic component of the overall design. Their unique forms not only endow buildings with dynamic beauty and artistic expression but also enhance the dialogue between architecture and its environment through subtle interplay of light and shadow.

[0003] However, due to the strict requirements on the structural dimensions of irregularly shaped exterior door and window openings, it is difficult to accurately control them during the construction phase. Non-standard window opening dimensions are not conducive to the precise fabrication and installation of irregularly shaped windows. As a result, after the irregularly shaped windows are installed, the gap between the window frame and the opening will be uneven. If the gap is too small, the opening structure needs to be damaged. If the gap is too large, the sealing material cannot be filled tightly, which can easily cause the sealing layer to crack and bulge, affecting the appearance and posing a risk of leakage. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a leak-proof sub-frame sealing structure for irregularly shaped doors and windows, so as to solve the technical problems of leakage and hollow cracking caused by uneven gaps between the window frame and the opening and insufficient filling of sealing material due to dimensional control deviations in irregularly shaped door and window openings in traditional construction processes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof sub-frame sealing structure for irregularly shaped doors and windows, comprising a window body, a wall, and a window frame, characterized in that: the window body includes a wall, a window frame is provided on the wall, glass is installed inside the window frame through a sealing structure, the sealing structure includes a multi-layer waterproof system consisting of an outer insulation layer, an inner insulation layer, a waterproof mortar sealing layer, a window sub-frame, sealant, and expanding foam, the window sub-frame is fixed circumferentially along the outer edge of the wall opening by expansion bolts, and its outer surface is flush with the outer facade of the wall;

[0006] The waterproof mortar sealing layer fills the annular gap between the back of the window frame and the wall, forming a figure-eight structure that expands into the inner side of the wall. The outer insulation layer continuously covers the outer facade of the wall and the outer surface of the window frame, with its inner edge extending to the middle of the window frame. The inner insulation layer covers the inner side of the wall, with its outer edge terminating at the inner edge of the window frame.

[0007] The main window frame is installed inside the sub-window frame, forming an annular installation gap between them for installing glass. The expanding foam completely fills the annular installation gap between the main window frame and the sub-window frame, and the sealant continuously covers the outer joint line between the outer insulation layer and the main window frame.

[0008] By adopting the above technical solutions, a multi-layered waterproofing system achieves layered protection, window frame reference positioning improves installation accuracy, and the nested structure of main and sub-frames enhances overall stability.

[0009] Furthermore, the open end of the figure-eight structure of the waterproof mortar sealing layer faces the inner side of the wall, and its closed end forms a layered covering relationship with the inner edge of the outer insulation layer.

[0010] By adopting the above technical solutions, the figure-eight structure diffuses stress, prevents cracking, and the layered coverage enhances waterproof continuity.

[0011] Furthermore, the expanding foam is injected bidirectionally into the inner and outer sides of the window frame to form a continuous sealing body that penetrates the annular installation gap. The inner surface of the elastic sealing body forms an interference fit with the outer surface of the glass, and the outer surface is engaged in the limiting groove of the window frame.

[0012] By adopting the above technical solution, bidirectional foam filling achieves a seal without dead angles, and the elastic interference fit adapts to dynamic deformation.

[0013] Furthermore, the sealant extends in a chamfered shape along the outer joint line between the outer insulation layer and the main window frame, while covering the edge of the outer insulation layer and the outer surface of the main window frame.

[0014] By adopting the above technical solution, the chamfered sealant coverage enhances edge protection and dynamically extends to compensate for displacement.

[0015] Furthermore, the outer edge of the galvanized steel square tube cross-section of the window subframe is flush with the outer facade of the wall, and its inner edge protrudes inward to form a main frame installation platform.

[0016] By adopting the above technical solutions, the durability of the galvanized steel subframe is improved, and the stress on the main frame installation platform is optimized.

[0017] Furthermore, the inner insulation layer and the outer insulation layer are staggered in the thickness direction of the window subframe to form a stepped waterproof interface.

[0018] By adopting the above technical solutions, the staggered insulation layer blocks thermal bridges, and the stepped interface prevents water seepage from cascading.

[0019] In summary, the present invention has the following main advantages:

[0020] This utility model solves the technical problems of uneven gaps between window frames and openings, and incomplete filling of sealing materials caused by dimensional control deviations in irregularly shaped door and window openings in traditional construction processes. The rigid fixation of the window frame and the V-shaped structure of the waterproof mortar work together to enhance the adaptability of the opening. The continuous filling of the foam combined with the chamfered coverage of the sealant achieves dynamic sealing. The staggered arrangement of the inner and outer insulation layers and the synergistic effect of the installation gaps between the main and sub-frames effectively absorb dimensional deviations. Through complementary material properties and optimized structural layers, the above structure solves the technical problems of uneven gaps between window frames and openings and leakage and hollow cracking caused by incomplete filling of sealing materials in irregularly shaped door and window openings due to dimensional control deviations in traditional construction processes. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention;

[0023] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0024] Figure 4 This is a cross-sectional view of the sealing structure of this utility model.

[0025] In the diagram: 1. Window; 101. Wall; 102. Window frame; 2. Sealing structure; 201. External insulation layer; 202. Internal insulation layer; 203. Waterproof mortar sealing layer; 204. Window subframe; 205. Sealant; 206. Expanding foam; 207. Window main frame; 3. Glass. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] A leak-proof subframe sealing structure for irregularly shaped doors and windows, such as Figure 1-4 As shown, the device includes a window 1, a wall 101, and a window frame 102. The window 1 includes a wall 101, and a window frame 102 is provided on the wall 101. A glass 3 is installed inside the window frame 102 through a sealing structure. The sealing structure 2 includes a multi-layer waterproof system consisting of an outer insulation layer 201, an inner insulation layer 202, a waterproof mortar sealing layer 203, a window sub-frame 204, sealant 205, and expanding foam 206. The window sub-frame 204 is fixed circumferentially along the outer edge of the opening in the wall 101 by expansion bolts, and its outer surface is flush with the outer facade of the wall 101.

[0028] Waterproof mortar sealing layer 203 fills the annular gap between the back of window subframe 204 and wall 101, forming a figure-eight structure that expands inward toward the wall 101. The outer insulation layer 201 continuously covers the outer facade of wall 101 and the outer surface of window subframe 204, with its inner edge extending to the middle of window subframe 204. The inner insulation layer 202 covers the inner side of wall 101, with its outer edge terminating at the inner edge of window subframe 204.

[0029] The main window frame 207 is installed inside the sub-frame 204, forming an annular installation gap between them for installing the glass 3. Expanding foam 206 completely fills the annular installation gap between the main window frame 207 and the sub-frame 204. Sealant 205 continuously covers the outer joint line between the outer insulation layer 201 and the main window frame 207. The outer insulation layer continuously covers the sub-frame 204 and the exterior facade of the wall 101, blocking the path of rainwater penetration. The inner insulation layer 202 is staggered with the outer insulation layer 201 to form a stepped interface, preventing thermal bridging. The sub-frame 204 is fixed to the outer edge of the opening in the wall 101 by expansion bolts, with its outer surface aligned with the wall, providing a precise reference for the subsequent installation of the main frame 207 and solving the problem of dimensional deviation in irregular openings. The annular installation gap design between the main frame 207 and the sub-frame 204 allows for three-dimensional fine-tuning. Combined with the elastic filling of expanding foam 206, it absorbs construction errors and enhances seismic performance.

[0030] See Figure 1 , Figure 2 The open end of the figure-eight structure of the waterproof mortar sealing layer 203 faces the inside of the wall 101, and its closed end forms a layered covering relationship with the inner edge of the outer insulation layer 201. The figure-eight expansion structure will concentrate stress and diffuse it into the interior of the wall, reducing the risk of cracking of the mortar layer. The layered covering design ensures that there are no breaks at the joint between the outer insulation layer 201 and the waterproof mortar layer 203, preventing rainwater from seeping in along the gaps.

[0031] See Figure 1 , Figure 2 The expanding foam 206 is injected bidirectionally into the inner and outer sides of the window main frame 207 to form a continuous seal that runs through the annular installation gap. The inner surface of the elastic seal is interference-fitted with the outer surface of the glass 3, and the outer surface is snapped into the limiting groove of the window main frame 207. The bidirectional injection process ensures that the expanding foam fully fills the gap, eliminating the cavities that are easily generated by traditional single-sided injection. After the expanding foam cures, the inner side is interference-fitted with the glass 3, and the outer side is snapped into the limiting groove of the main frame 207. This process can absorb thermal expansion and contraction deformation and prevent the adhesive from falling off.

[0032] See Figure 1 , Figure 2The sealant 205 extends in a chamfered shape along the outer joint line between the outer insulation layer 201 and the main window frame 207, covering both the edge of the outer insulation layer 201 and the outer surface of the main window frame 207. The chamfered coverage simultaneously wraps the edge of the outer insulation layer and the outer surface of the main frame, preventing rainwater from entering through the joint. The elastic extensibility of the sealant can adapt to displacement caused by temperature changes, such as expansion and contraction of ±3mm, thus preventing the sealant from cracking.

[0033] See Figure 3 , Figure 4 The outer edge of the galvanized steel square tube cross-section of the window subframe 204 is flush with the outer facade of the wall 101, and its inner edge protrudes inward to form a main frame installation platform. The galvanized layer resists corrosion and extends the service life to more than 30 years. It is suitable for high humidity environments. The main frame installation platform formed by the protruding inner edge provides rigid support for the window main frame 207, distributes the glass load, and avoids local stress concentration.

[0034] See Figure 1 , Figure 4 The inner insulation layer 202 and the outer insulation layer 201 are staggered in the thickness direction of the window subframe 204 to form a stepped waterproof interface. The staggered design cuts off the direct heat conduction path between the inner and outer insulation layers, reducing energy consumption by about 15%. The stepped interface makes rainwater need to detour through the multi-layer structure, greatly increasing the difficulty of leakage.

[0035] The implementation principle of this embodiment is as follows: First, the installation reference surface is established through the reference positioning function of the window subframe 204: the window subframe 204 is fixed circumferentially along the outer edge of the opening of the wall 101 using expansion bolts to ensure that its outer surface is aligned with the outer facade of the wall 101, forming a size compensation base layer.

[0036] Then, a multi-layer waterproofing system is constructed using a graded filling process. At this stage, waterproof mortar needs to be injected in layers into the annular gap between the back of the window subframe 204 and the wall 101, forming a figure-eight shaped sealing layer 203 that expands inwards towards the wall 101. This layer utilizes the stress diffusion characteristics of its trapezoidal cross-section to absorb dimensional deviations during construction. The outer insulation layer 201 continuously covers the outer surface of the window subframe 204 and the outer facade of the adjacent wall 101, extending to the middle of the window subframe 204. This length, combined with the inner insulation layer 202 terminating at the inner edge of the window subframe 204, forms a complete waterproofing system. A stepped waterproof interface with internal and external misalignment is formed; when the main window frame 207 is nested and installed, the preset space of the annular installation gap allows the main frame 207 to be three-dimensionally fine-tuned inside the sub-frame 204. The bidirectional injected foam 206 adaptively fills the gap during the expansion and curing process, forming a gapless elastic support layer; the sealant 205 extends and covers the outer insulation layer 201 and the main window frame 207 in a chamfered shape, and compensates for the displacement caused by temperature deformation through its extensibility, forming a cross waterproof barrier with the figure-eight structure of the waterproof mortar sealing layer 203;

[0037] Subsequently, through the rigid mounting platform of the galvanized steel window subframe 204 and the interference fit design of the elastic sealing strip 4, a two-way stress balance is formed during the glass 3 installation stage. Specifically, the flush outer edge structure of the galvanized steel square tube cross-section ensures the continuous coverage of the outer insulation layer 201; the protruding inner edge mounting platform provides a precise snap-fit ​​position for the main window frame 207.

[0038] The interference fit of the elastic sealing strip 4 and the restraining effect of the limiting groove eliminate local stress concentration caused by the dimensional deviation of the irregular opening;

[0039] Through this setup, the reference positioning of the window subframe 204 and the stress diffusion of the figure-eight sealing layer 203 work together to compensate for construction dimensional deviations. The stepped staggered arrangement of the inner and outer insulation layers 201 and 202 blocks the thermal bridge seepage path. The elastic filling of the foam 206 and the dynamic covering of the sealant 205 form a composite sealing system.

[0040] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A leak-proof subframe sealing structure for irregularly shaped doors and windows, characterized in that: The device includes a window (1), a wall (101), and a window frame (102), characterized in that: the window (1) includes a wall (101), a window frame (102) is provided on the wall (101), and glass (3) is installed in the window frame (102) through a sealing structure. The sealing structure (2) includes a multi-layer waterproof system consisting of an outer insulation layer (201), an inner insulation layer (202), a waterproof mortar sealing layer (203), a window sub-frame (204), sealant (205), and foam (206). The window sub-frame (204) is fixed circumferentially along the outer edge of the opening in the wall (101) by expansion bolts, and its outer surface is flush with the outer facade of the wall (101). The waterproof mortar sealing layer (203) fills the annular gap between the back of the window frame (204) and the wall (101), forming a figure-eight structure that expands into the wall (101). The outer insulation layer (201) continuously covers the outer facade of the wall (101) and the outer surface of the window frame (204), with its inner edge extending to the middle of the window frame (204). The inner insulation layer (202) covers the inner side of the wall (101), with its outer edge terminating at the inner edge of the window frame (204). The main window frame (207) is installed inside the window sub-frame (204), forming an annular installation gap between them for installing glass (3). The expanding foam (206) completely fills the annular installation gap between the main window frame (207) and the window sub-frame (204), and the sealant (205) continuously covers the outer joint line between the outer insulation layer (201) and the main window frame (207).

2. The sealing structure of the leak-proof sub-frame for irregularly shaped doors and windows according to claim 1, characterized in that: The opening end of the figure-eight structure of the waterproof mortar sealing layer (203) faces the inside of the wall (101), and its closed end forms a layered covering relationship with the inner edge of the outer insulation layer (201).

3. The sealing structure of the leak-proof sub-frame for irregularly shaped doors and windows according to claim 1, characterized in that: The expanding foam (206) is injected bidirectionally into the inner and outer sides of the window main frame (207) to form a continuous sealing body that runs through the annular installation gap. The inner surface of the elastic sealing body forms an interference fit with the outer surface of the glass (3), and the outer surface is engaged in the limiting groove of the window main frame (207).

4. The sealing structure of the leak-proof sub-frame for irregularly shaped doors and windows according to claim 1, characterized in that: The sealant (205) extends in a chamfered shape along the outer joint line between the outer insulation layer (201) and the main window frame (207), while covering the edge of the outer insulation layer (201) and the outer surface of the main window frame (207).

5. The sealing structure of the leak-proof sub-frame for irregularly shaped doors and windows according to claim 1, characterized in that: The outer edge of the galvanized steel square tube cross-section of the window subframe (204) is flush with the outer facade of the wall (101), and its inner edge protrudes inward to form the main frame installation platform.

6. The sealing structure of the leak-proof sub-frame for irregularly shaped doors and windows according to claim 1, characterized in that: The inner insulation layer (202) and the outer insulation layer (201) are staggered in the thickness direction of the window subframe (204) to form a stepped waterproof interface.

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