Leakage-proof tongue-and-groove of outer window

Abstract

The utility model belongs to the technical field of doors and windows, and particularly relates to an outer window anti-leakage tongue-and-groove which comprises a water stop tongue-and-groove and an outer window main frame. An outer window auxiliary frame is fixedly connected to the middle of the water stop tongue-and-groove. The side wall of the outer window auxiliary frame is fixedly connected with a wall connecting piece. A fixing nail is arranged in the middle of the wall connecting piece; the wall connecting piece and the outer window auxiliary frame are fixed through a first fixing assembly. The auxiliary frame is pre-embedded along with the structure, so that the edge covering procedure is omitted, and on-site installation of the outer window main frame is accelerated; through the arrangement of the tongue-and-groove, a water stop ridge platform is formed on a circle of the outer window, and rainwater seeping between the main frame and the auxiliary frame can be effectively prevented from flowing into a room; meanwhile, the blanking size of the outer window main frame strictly meets the requirements of related specifications, and the complaint risk of small owners caused by insufficient ventilation and lighting window ground ratio is avoided. Materials and labor cost are saved, on-site construction period is shortened, working efficiency is enhanced, external window construction quality is improved, and cost is saved.

Description

Technical Field

[0001] This utility model belongs to the field of door and window technology, specifically a tongue and groove joint for preventing leakage of exterior windows. Background Technology

[0002] Fujian Province has a typical subtropical climate with abundant rainfall throughout the year, especially frequent typhoons and torrential rains in summer. After the handover of high-rise residential projects, window leakage issues account for a large proportion of quality warranty claims, making it a high-risk area for homeowner complaints. This has a significant negative impact on the reputation of developers and construction companies.

[0003] In existing technologies, the conventional process for exterior window projects is as follows:

[0004] (1) The subframe is embedded after installation and fixed to the external window opening using wall ties and nails;

[0005] (2) After the gap between the subframe and the window opening structure base is properly sealed, waterproof mortar is used to wrap the edges of both sides of the subframe, and the plaster surface is flush with the subframe surface. The plastering on the outdoor side ensures the slope requirement;

[0006] (3) Install the main frame of the exterior window and fill the space between the main and sub-frames with expanding foam;

[0007] (4) Apply sealant between the base of the main frame of the exterior window and the decorative surface of the window edge.

[0008] Through long-term use and observation, the following two drawbacks were found in the above approach:

[0009] 1. Leakage around windows is likely to occur due to factors such as incomplete filling of the foaming agent and inadequate application of sealant.

[0010] 2. According to conventional practice, without increasing the size of the external window opening, the general cutting size of the external window main frame is: opening width - 2x (sub-frame caulking thickness + main and sub-frame caulking thickness + sub-frame thickness). Taking a 1200mm wide external window opening as an example, the main frame size is only about 1120mm. According to Clause 6.2.1 of the "Technical Specification for Exterior Windows of Civil Buildings in Fujian Province DBJ13-255-2016", "During the design, the dimensions marked on the window opening should be the same as the marked dimensions of the opening. The internal structural dimensions of the subframe should be the same as the marked dimensions of the opening. For example, if the marked opening dimensions are 1200mm x 1500mm, the width and height of the inner opening of the installed subframe should be 1200mm and 1500mm respectively. Subtracting the installation gap between the window frame and the subframe, which is about 6mm on each side, the actual dimensions of the window are 1188mm x 1488mm." Furthermore, conventional material cutting methods cannot meet the requirement of Clause 7.2.4.2 of the "Code for Design of Residential Buildings" (GB 50096-2011), which states that "the ventilation opening area should not be less than 1 / 10 of the floor area of ​​the room," thus affecting the functionality of the residence.

[0011] 3. Complex procedures are not conducive to speeding up on-site construction progress.

[0012] To reduce the risk of window leakage, ensure the functionality of windows in residential projects, simplify on-site procedures, and facilitate construction, this study investigates a new type of window anti-leakage tongue and groove joint. This design aims to reduce the risk of window leakage, meet performance indicators such as the window-to-floor ratio, and improve the quality of window construction.

[0013] Therefore, this utility model provides a leak-proof tongue and groove joint for exterior windows. Utility Model Content

[0014] To reduce the risk of leakage in exterior windows, ensure the functionality of exterior windows in residential projects, simplify on-site procedures, and facilitate construction, this paper proposes a leak-proof tongue and groove joint for exterior windows. This joint aims to reduce the risk of leakage, meet performance indicators such as the window-to-floor ratio, and improve the construction quality of exterior windows.

[0015] The technical solution adopted by this utility model to solve its technical problem is as follows: The present utility model provides a leak-proof tongue and groove joint for exterior windows, comprising a water-stop tongue and groove joint and an exterior window main frame; an exterior window sub-frame is fixedly connected to the middle of the water-stop tongue and groove joint; a wall-connecting piece is fixedly connected to the side wall of the exterior window sub-frame; a fixing nail is provided in the middle of the wall-connecting piece; the wall-connecting piece and the exterior window sub-frame are fixed by a first fixing component; an adjustment component is provided between the exterior window main frame and the exterior window sub-frame; a second fixing component is provided between the adjustment component and the exterior window sub-frame; a foaming agent is provided between the exterior window main frame and the exterior window sub-frame; a sealing component is provided on the side wall of the exterior window main frame; and a waterproof component is provided between the water-stop tongue and groove joint and the exterior window main frame.

[0016] Preferably, the first fixing component includes a first self-tapping screw; the first self-tapping screw is threadedly connected to both the wall tie and the outer window subframe.

[0017] Preferably, the adjustment component includes an adjustment block; the adjustment block is disposed between the outer window subframe and the outer window main frame.

[0018] Preferably, the second fixing component includes a second self-tapping screw; the second self-tapping screw is threadedly connected to both the adjusting block and the outer window subframe.

[0019] Preferably, the sealing assembly includes a sealant.

[0020] Preferably, the waterproof component includes waterproof mortar; the waterproof mortar is flush with the water-stop tongue and groove joint.

[0021] The beneficial effects of this utility model are as follows:

[0022] 1. The leak-proof tongue and groove joint for exterior windows described in this utility model pre-embeds the subframe along with the structure in one step, eliminating the window edge wrapping process and saving the cost of wrapping materials and labor in conventional processes.

[0023] 2. The leak-proof tongue and groove joint for exterior windows described in this utility model achieves this by leaving a plastic groove on the inner side of the formwork near the exterior, allowing the tongue and groove joint to be formed in one step during the construction of the concrete structure. This eliminates the need for a pre-embedded subframe, thus accelerating on-site construction.

[0024] 3. The leak-proof tongue and groove joint for exterior windows described in this utility model is cut according to relevant specifications, conforms to design requirements, and avoids problems such as insufficient window-to-floor ratio affecting functionality. It avoids the risk of subsequent complaints from homeowners regarding insufficient ventilation and lighting due to small exterior windows.

[0025] 4. The present invention provides a tongue-and-groove joint for waterproofing exterior windows, wherein a tongue-and-groove joint is installed inside the window opening, with the joint surface protruding 2cm from the opening structure on each side, forming a stepped shape; the height varies from the interior to the exterior, forming a water-stopping sill. Furthermore, after the main frame is installed, the tongue-and-groove joint surface is 10-15mm higher than the base of the main frame, effectively preventing rainwater seeping between the main and auxiliary frames from flowing into the interior, thus solving the problem of weak waterproofing around the exterior windows in traditional methods. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 This is a perspective view of the present invention;

[0028] Figure 2 yes Figure 1 A sectional view along direction A.

[0029] Figure 3 yes Figure 1 A sectional view along the B direction;

[0030] Figure 4 This is a schematic diagram of the tongue and groove forming process for windows in this utility model.

[0031] Figure 5 yes Figure 2 Enlarged view of point C in the middle;

[0032] Legend:

[0033] 1. Water-stop tongue and groove joint; 2. Window subframe; 3. Wall tie; 4. Fixing nail; 5. First self-tapping screw; 6. Window main frame; 7. Adjusting block; 8. Second self-tapping screw; 9. Foaming agent; 10. Sealant; 11. Waterproof mortar. Detailed Implementation

[0034] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0035] Specific implementation examples are given below.

[0036] like Figures 1 to 5 As shown in the embodiment of this utility model, a leak-proof tongue and groove joint for an exterior window includes a water-stop tongue and groove joint 1 and an exterior window main frame 6; an exterior window sub-frame 2 is fixedly connected to the middle of the water-stop tongue and groove joint 1; a wall connecting piece 3 is fixedly connected to the side wall of the exterior window sub-frame 2; a fixing nail 4 is provided in the middle of the wall connecting piece 3; the wall connecting piece 3 and the exterior window sub-frame 2 are fixed by a first fixing component; an adjustment component is provided between the exterior window main frame 6 and the exterior window sub-frame 2; a second fixing component is provided between the adjustment component and the exterior window sub-frame 2; a foaming agent 9 is provided between the exterior window main frame 6 and the exterior window sub-frame 2; and a sealing assembly is provided on the side wall of the exterior window main frame 6. The components include: a waterproofing component between the water-stop tongue and groove joint 1 and the main frame of the outer window 6; a first fixing component including a first self-tapping screw 5; the first self-tapping screw 5 being threadedly connected to both the wall connecting piece 3 and the outer window sub-frame 2; an adjusting component including an adjusting block 7; the adjusting block 7 being disposed between the outer window sub-frame 2 and the outer window main frame 6; a second fixing component including a second self-tapping screw 8; the second self-tapping screw 8 being threadedly connected to both the adjusting block 7 and the outer window sub-frame 2; a sealing component including sealant 10; and a waterproofing component including waterproof mortar 11; the waterproof mortar 11 being flush with the water-stop tongue and groove joint 1.

[0037] Work process:

[0038] 1. When using aluminum formwork construction, add a 20mm thick plastic groove on the inside of the formwork and fix it with bolts and nuts. On the side of the window opening closest to the outside, arrange the plastic groove around the window opening. The structural dimensions between the inner openings of the plastic groove should be the same as the marked dimensions of the opening. After the concrete is poured, the water-stop tongue and groove 1 protrudes 20mm from the structural opening on each side.

[0039] 2. Fix the wall-connecting piece 3 to the outer window sub-frame 2 with the first self-tapping screw 5, and then leave a fixing nail 4 at the end of the wall-connecting piece 3 to enhance the grip between the outer window sub-frame 2 and the structure.

[0040] 3. Fix the outer window subframe 2 onto the pressure groove and form it in one go with the concrete structure pouring, so that the outer window subframe 2 and the cast-in-place concrete of the opening are formed at the same time. When the formwork is removed, loosen the self-tapping screws that fix the outer window subframe 2 onto the plastic pressure groove.

[0041] 4. Position the main frame 6 of the outer window on site, and use the adjusting block 7 to position it between the main frame 6 and the secondary frame 2 of the outer window, and fix it with the second self-tapping screw 8;

[0042] 5. Fill the space between the main frame 6 and the sub-frame 2 of the outer window with expanding foam 9. Before the expanding foam 9 expands and solidifies, fill it back until it is flush with the side of the main frame 6 of the outer window.

[0043] 6. Use waterproof mortar 11 to finish the edges of the water-stop tongue and groove joint 1 and the main frame of the outer window 6, and smooth it to the surface of the water-stop tongue and groove joint 1.

[0044] 7. After the interior and exterior decorative surfaces are completed, apply sealant 10 in two applications, along the main frame of the exterior window 6 and the interior decorative surface, to ensure that the sealant is applied tightly.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A leak-proof tongue and groove joint for exterior windows, comprising a water-stop tongue and groove joint (1) and an exterior window main frame (6); characterized in that: The water-stop tongue and groove joint (1) is fixedly connected to the middle of the outer window sub-frame (2); the outer window sub-frame (2) is fixedly connected to the side wall of the outer window sub-frame (2); the wall connecting piece (3) is provided with a fixing nail (4) in the middle; the wall connecting piece (3) and the outer window sub-frame (2) are fixed by a first fixing component; an adjustment component is provided between the outer window main frame (6) and the outer window sub-frame (2); a second fixing component is provided between the adjustment component and the outer window sub-frame (2); a foaming agent (9) is provided between the outer window main frame (6) and the outer window sub-frame (2); a sealing component is provided on the side wall of the outer window main frame (6); a waterproof component is provided between the water-stop tongue and groove joint (1) and the outer window main frame (6).

2. The anti-leakage tongue and groove joint for exterior windows according to claim 1, characterized in that: The first fixing component includes a first self-tapping screw (5); the first self-tapping screw (5) is threadedly connected to both the wall connecting piece (3) and the outer window subframe (2).

3. The anti-leakage tongue and groove joint for exterior windows according to claim 1, characterized in that: The adjustment component includes an adjustment block (7); the adjustment block (7) is disposed between the outer window subframe (2) and the outer window main frame (6).

4. The anti-leakage tongue and groove joint for exterior windows according to claim 3, characterized in that: The second fixing component includes a second self-tapping screw (8); the second self-tapping screw (8) is threadedly connected to both the adjusting block (7) and the outer window subframe (2).

5. The anti-leakage tongue and groove joint for exterior windows according to claim 1, characterized in that: The sealing assembly includes a sealant (10).

6. The anti-leakage tongue and groove joint for exterior windows according to claim 1, characterized in that: The waterproof component includes waterproof mortar (11); the waterproof mortar (11) is flush with the water-stop tongue and groove (1).

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