Double-rabbet outer window structure without additional frame

Abstract

This utility model discloses a double-riddle frameless exterior window structure, belonging to the technical field of exterior window waterproofing structures. It includes a first and a second tongue-and-groove joint distributed in a stepped manner from the inside to the outside of the window opening. A main window frame is mounted on the first tongue-and-groove joint, with waterproof mortar between the main window frame and the first tongue-and-groove joint. An exterior wall panel is mounted on the second tongue-and-groove joint. The main window frame has a downward-facing mounting groove on the side near the exterior wall panel. The exterior wall panel is embedded in the mounting groove and positioned lower than the inner platform of the window opening. The main window frame is installed at the higher position of the first tongue-and-groove joint, and the exterior wall panel is installed at the lower position of the second tongue-and-groove joint. A downward-facing mounting groove is provided on the outside of the main window frame. The top of the exterior wall panel is turned up and inserted into the mounting groove to form a connection, thus eliminating upward-facing gaps. The indoor side of the exterior window installation position is higher than the outdoor side. Even if a small amount of water seeps in through the waterproof mortar sealing the exterior window, it will not reach the interior due to the height difference at the window opening.

Description

Technical Field

[0001] This utility model relates to an exterior window structure, and more specifically, to a double tongue-and-groove frameless exterior window structure. Background Technology

[0002] In the design and installation of exterior windows, existing aluminum profile manufacturers' series are generally selected based on energy-saving and load-bearing calculations, and the corresponding groove size is chosen for window assembly in conjunction with the glass thickness. During on-site installation, the window openings are all flush openings. If the exterior side is a curtain wall or moldings, space is reserved for their installation by installing subframes. This increases the gap between the subframe and the window opening, increasing the risk of leakage. Additionally, the normal junction of the curtain wall / moldings and window frame with the window frame and the application of sealant may result in upward-facing seams. If the construction is not done properly or the sealant cracks over time, leakage problems will occur.

[0003] For example, Chinese Patent Publication No. CN112227883A, published on January 15, 2021, entitled "A Double Tongue-and-Groove Insulated Window Structure and Installation Method," discloses a double tongue-and-groove window structure, including a base wall, a subframe, and a window frame. The base wall has a double tongue-and-groove structure on the inner periphery of the window opening, which includes a first tongue-and-groove and a second tongue-and-groove, and the double tongue-and-groove structure is stepped upward from the outside to the inside. The subframe is located inside the second tongue-and-groove, and the inner side of the subframe is in close contact with the vertical surface of the second tongue-and-groove. A foaming layer is provided between the inner periphery of the subframe and the second tongue-and-groove. A window sill insulation layer is provided on the outer side of the subframe and the vertical surface of the first tongue-and-groove, and the vertical height of the window sill insulation layer can cover the connection seam between the window frame and the subframe. The outer vertical surface of the base wall has a wall insulation layer with an outer edge flush with the outer edge of the window sill insulation layer. The window structure in this design features good thermal insulation and energy saving, excellent water resistance, and a simple and easy installation process, ensuring high fixing strength and installation accuracy. However, this design creates an upward-facing gap between the exterior wall panel and the window, resulting in less than ideal water resistance. Utility Model Content

[0004] This invention overcomes the problem of poor anti-leakage effect of existing double-tongue-and-mouth exterior window structures and provides a double-tongue-and-mouth frameless exterior window structure. This solution can eliminate the upward-facing seam on the outside of the exterior window structure and at the same time design the height difference between the inside and outside to improve the anti-leakage effect of the exterior window structure.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a double-rough-and-recess frameless exterior window structure, including a first and a second rough-and-recess distributed in a stepped manner from the inner side to the outer side of the window opening. A main window frame is provided on the first rough-and-recess, and waterproof mortar is provided between the main window frame and the first rough-and-recess. An exterior wall panel is provided on the second rough-and-recess. The main window frame has a downward-facing mounting groove on the side near the exterior wall panel. The exterior wall panel is embedded in the mounting groove and its position is lower than the inner platform of the window opening. In this solution, the main window frame is installed at the higher position of the first rough-and-recess, and the exterior wall panel is installed at the lower position of the second rough-and-recess. A downward-facing mounting groove is provided on the outer side of the main window frame. The top of the exterior wall panel is turned up and inserted into the mounting groove to form a connection, thereby eliminating the upward-facing gap and improving the waterproof effect of the exterior window structure. Furthermore, the indoor side of the exterior window installation position is higher than the outdoor side. Even if a small amount of water seeps in from the waterproof mortar at the window slit, it will not reach the interior due to the height difference at the window opening.

[0006] Preferably, the first and second tongue-and-groove joints are coated with a waterproof coating, the coating extending from the highest point inside the first tongue-and-groove joint to the outside of the second tongue-and-groove joint, extending downwards and outwards by at least 150mm. The waterproof coating applied to the first and second tongue-and-groove joints prevents leaking water from seeping into the interior from the loose concrete surface.

[0007] Preferably, waterproof mortar is provided between the main window frame and the first tongue and groove joint, and sealant is provided on the outside of the waterproof mortar and between the main window frame and the first tongue and groove joint. The waterproof mortar can prevent leakage and also support the main window frame, making it easy to adjust the installation size and correct installation errors; the sealant can prevent leakage inside the first tongue and groove joint, further improving the waterproof performance of the exterior window structure.

[0008] Preferably, insulating rock wool is provided between the exterior wall panel and the second tongue and groove joint. After the exterior window is installed, insulating rock wool is filled at the window sill to prevent the formation of a cold bridge at the window sill.

[0009] Preferably, a weather-resistant sealant is also provided between the mounting groove and the exterior wall panel. The weather-resistant sealant at the mounting groove and the exterior wall panel can ensure the watertightness and airtightness of the exterior window installation.

[0010] Preferably, the wall panel also includes a steel frame located on the outside of the window opening wall, and the exterior wall panel is installed on the steel frame. The exterior wall panel is fastened to the outside of the main window frame and is also installed on the steel frame on the outside of the window opening, thereby improving the installation strength of the exterior wall panel.

[0011] Preferably, the connection point between the exterior wall panel and the mounting groove is at least 5mm lower than the inner platform of the window opening. The exterior wall panel and the mounting groove are located at the outer platform of the window opening, while the inner platform of the window opening is higher with a difference of at least 5mm to ensure waterproofing.

[0012] Preferably, the main window frame includes a first window frame and a second window frame, with a glass window disposed between the first window frame and the second window frame. The main window frame, composed of the first window frame and the second window frame, facilitates the installation of the glass window on the window frame.

[0013] Preferably, a plurality of nylon expansion bolts are provided between the second window frame and the first tongue and groove joint, and the nylon expansion bolts are spaced apart along the length of the main window frame. The second window frame and the first tongue and groove joint are fixedly connected by nylon expansion bolts, so that the main window frame as a whole can be stably fixed in the window opening position.

[0014] Compared with the prior art, the beneficial effects of this utility model are: (1) Double tongue and groove are set through the window opening, and the installation groove is added to the window bottom profile to reduce the installation gap, avoid the aluminum plate closing seam facing upward, and set multiple waterproof and water-blocking measures to solve the problem of leakage of the external window; (2) The main window frame is arranged in a frameless form, and the thickness and flatness of the waterproof mortar can be controlled, thereby ensuring the reasonable installation and arrangement of the main window frame; (3) The construction is simple, reducing the construction difficulty, the external window structure is stable, with strong connection strength and stability, and good air tightness and water tightness performance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the wall structure of this utility model.

[0017] Figure 3 for Figure 1 An enlarged diagram of A in the diagram.

[0018] Figure 4 This is a schematic diagram of the main window frame structure of this utility model.

[0019] In the diagram: 1. First tongue and groove joint, 2. Second tongue and groove joint, 3. Main window frame, 3.1. First window frame, 3.2. Second window frame, 4. Waterproof mortar, 5. Exterior wall panel, 6. Mounting groove, 7. Waterproof coating, 8. Sealant, 9. Thermal insulation rock wool, 10. Weather-resistant sealant, 11. Steel frame, 12. Glass window, 13. Nylon expansion nail, 14. Building exterior wall, 15. Protective layer, 16. Eaves, 17. Connecting strip. Detailed Implementation

[0020] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0021] Example 1: As Figures 1 to 3 The illustrated double-rough-and-recess frameless exterior window structure includes a main window frame 3, which is installed within a window opening on the building's exterior wall 14. During casting or installation, the exterior wall 14 incorporates a double-rough-and-recess structure within the window opening, specifically a first rough-and-recess 1 and a second rough-and-recess 2. The first rough-and-recess 1 is closer to the interior side, and the second rough-and-recess 2 is closer to the exterior side. The first rough-and-recess 1 and the second rough-and-recess 2 are continuous steps, with the first rough-and-recess 1 positioned higher than the second rough-and-recess 2. The main window frame 3 is positioned on the first rough-and-recess 1, and an exterior wall panel 5 is installed at the second rough-and-recess 2. Furthermore, the main window frame 3 has an installation groove 6 on the side of the main window frame 3 closest to the second rough-and-recess 2, with the opening of the installation groove 6 facing downwards. The top of the exterior wall panel 5 is turned upwards to form a connection portion that fits into the installation groove 6. When the connection portion at the top of the exterior wall panel 5 is assembled with the installation groove 6, no upward-facing gap is formed between the exterior wall panel 5 and the installation groove 6, effectively preventing the potential for water leakage from such a gap. In addition, the height of the platform inside the window opening is higher than the height of the platform outside the exterior wall panel 5. In other words, the connection position between the exterior wall panel 5 and the mounting groove 6 will be lower than the position of the indoor windowsill. As a result, the indoor side of the exterior window installation position is higher than the outdoor side. Even if a small amount of water seeps in from the exterior window, it will not reach the interior due to the height difference at the window opening, which greatly increases the waterproof effect of the exterior window structure.

[0022] Furthermore, in this embodiment, the height of the first tongue and groove joint 1 is 20mm, and the height of the second tongue and groove joint 2 is 30mm. After the first tongue and groove joint 1 and the second tongue and groove joint 2 on the window opening are poured or constructed, waterproof coating 7 needs to be applied to the surface of the first tongue and groove joint 1 and the second tongue and groove joint 2. The waterproof coating 7 can provide a good waterproof effect for the exterior wall of the building, preventing water leakage from seeping into the room from the loose concrete surface. Specifically, the application range of the waterproof coating 7 is continuously applied from the highest point inside the first tongue and groove joint 1 to 200mm below the outer side of the second tongue and groove joint 2. In this way, the highest point of the window sill and a certain distance below it can be effectively waterproofed, thereby improving the waterproof effect at the connection between the main window frame 3 and the exterior wall panel 5. The main window frame 3 and the exterior wall panel 5 are both made of aluminum or aluminum plate structure.

[0023] Furthermore, waterproof mortar 4 is laid above the first tongue and groove joint 1 and below the main window frame 3. The waterproof mortar 4 not only provides waterproofing but also compensates for installation errors in the main window frame 3 according to the construction dimensions. The thickness and flatness of the waterproof mortar 4 can be controlled, thus ensuring the proper installation and arrangement of the main window frame 3. Sealant 8 needs to be applied to the exterior of the waterproof mortar 4. Specifically, one side of the sealant 8 is located on the outer side of the first tongue and groove joint 1 and below the corresponding main window frame 3, while the other side is located on the inner side of the main window frame 3 and in the gap between it and the windowsill. Applying sealant 8 in this location fills and seals the gap, improving the aesthetic appearance.

[0024] Furthermore, thermal insulation rock wool 9 is installed between the exterior wall panel 5 and the second tongue-and-groove joint 2. The exterior wall panel 5 includes a top inclined plate (inclination angle of 5°, inclination direction downward from indoor to outdoor) and a vertical plate on the outer side. The inclined plate is connected to the mounting groove 6 on the side near the main window frame 3, and an outdoor windowsill is formed above the inclined plate. A vertically arranged protective layer 15 is also installed on the outer side of the building exterior wall 14. The protective layer 15 can further protect the waterproof coating 7 from damage. The thermal insulation rock wool 9 is arranged at the top of the second tongue-and-groove joint 2 and the protective layer 15. At the same time, a steel frame 11 structure is installed outside the protective layer 15 and inside the exterior wall panel 5. The steel frame 11 is an aluminum plate structure. The top and outer side of the steel frame 11 are connected to the top inner side of the exterior wall panel 5 and the inner side of the vertical plate respectively by connecting screws and other connectors. The steel frame 11 is installed in real time according to the on-site construction conditions and needs. The installation strength of the exterior wall panel 5 can be further improved by the steel frame 11, thermal insulation rock wool 9 and other structures. An eaves 16 is also provided on the vertical plate on the outer side of the exterior wall panel 5, with the eaves 16 protruding from the top of the vertical plate.

[0025] Furthermore, a downward-facing mounting groove 6 is pre-set on the bottom outer side of the main window frame 3. The mounting groove 6 is arranged along the length of the main window frame 3, improving the effective mating surface between the mounting groove 6 and the top of the exterior wall panel 5. After the mounting groove 6 and the exterior wall panel 5 are connected, a horizontal gap will still be formed between the opening at the bottom of the mounting groove 6 and the upper surface of the exterior wall panel 5. To prevent external water seepage, weather-resistant sealant 10 needs to be applied to the outside of the mounting groove 6 and the upper surface of the exterior wall panel 5 to ensure the water tightness and air tightness of the exterior window installation.

[0026] Furthermore, the connection point formed between the exterior wall panel 5 and the main window frame 3, or the position where the weather-resistant sealant 10 is applied, is lower than the position of the inner platform of the window opening. That is, the outdoor window sill plane is lower than the indoor window sill plane, and the height difference between the two is 5mm. The top of the first tongue and groove 1 is coated with waterproof coating 7 downwards. This not only improves the waterproof effect in terms of height, but also further enhances the anti-leakage performance in combination with the waterproof coating 7.

[0027] Example 2: Figures 1 to 4 The illustrated double-rough-and-recess frameless exterior window structure includes a main window frame 3, which is installed within a window opening on the building's exterior wall 14. During casting or installation, the exterior wall 14 incorporates a double-rough-and-recess structure within the window opening, specifically a first rough-and-recess 1 and a second rough-and-recess 2. The first rough-and-recess 1 is closer to the interior side, and the second rough-and-recess 2 is closer to the exterior side. The first rough-and-recess 1 and the second rough-and-recess 2 are continuous steps, with the first rough-and-recess 1 positioned higher than the second rough-and-recess 2. The main window frame 3 is positioned on the first rough-and-recess 1, and an exterior wall panel 5 is installed at the second rough-and-recess 2. Furthermore, the main window frame 3 has an installation groove 6 on the side of the main window frame 3 closest to the second rough-and-recess 2, with the opening of the installation groove 6 facing downwards. The top of the exterior wall panel 5 is turned upwards to form a connection portion that fits into the installation groove 6. When the connection portion at the top of the exterior wall panel 5 is assembled with the installation groove 6, no upward-facing gap is formed between the exterior wall panel 5 and the installation groove 6, effectively preventing the potential for water leakage from such a gap. In addition, the height of the platform inside the window opening is higher than the height of the platform outside the exterior wall panel 5. In other words, the connection position between the exterior wall panel 5 and the mounting groove 6 will be lower than the position of the indoor windowsill. As a result, the indoor side of the exterior window installation position is higher than the outdoor side. Even if a small amount of water seeps in from the exterior window, it will not reach the interior due to the height difference at the window opening, which greatly increases the waterproof effect of the exterior window structure.

[0028] Furthermore, in this embodiment, the height of the first tongue and groove joint 1 is 20mm, and the height of the second tongue and groove joint 2 is 30mm. After the first tongue and groove joint 1 and the second tongue and groove joint 2 on the window opening are poured or constructed, waterproof coating 7 needs to be applied to the surface of the first tongue and groove joint 1 and the second tongue and groove joint 2. The waterproof coating 7 can provide a good waterproof effect for the exterior wall of the building, preventing water leakage from seeping into the room from the loose concrete surface. Specifically, the application range of the waterproof coating 7 is continuously applied from the highest point inside the first tongue and groove joint 1 to 200mm below the outer side of the second tongue and groove joint 2. In this way, the highest point of the window sill and a certain distance below it can be effectively waterproofed, thereby improving the waterproof effect at the connection between the main window frame 3 and the exterior wall panel 5. The main window frame 3 and the exterior wall panel 5 are both made of aluminum or aluminum plate structure.

[0029] Furthermore, waterproof mortar 4 is laid above the first tongue and groove joint 1 and below the main window frame 3. The waterproof mortar 4 not only provides waterproofing but also compensates for installation errors in the main window frame 3 according to the construction dimensions. The thickness and flatness of the waterproof mortar 4 can be controlled, thus ensuring the proper installation and arrangement of the main window frame 3. Sealant 8 needs to be applied to the exterior of the waterproof mortar 4. Specifically, one side of the sealant 8 is located on the outer side of the first tongue and groove joint 1 and below the corresponding main window frame 3, while the other side is located on the inner side of the main window frame 3 and in the gap between it and the windowsill. Applying sealant 8 in this location fills and seals the gap, improving the aesthetic appearance.

[0030] Furthermore, thermal insulation rock wool 9 is installed between the exterior wall panel 5 and the second tongue-and-groove joint 2. The exterior wall panel 5 includes a top inclined plate (inclination angle of 5°, inclination direction downward from indoor to outdoor) and a vertical plate on the outer side. The inclined plate is connected to the mounting groove 6 on the side near the main window frame 3, and an outdoor windowsill is formed above the inclined plate. A vertically arranged protective layer 15 is also installed on the outer side of the building exterior wall 14. The protective layer 15 can further protect the waterproof coating 7 from damage. The thermal insulation rock wool 9 is arranged at the top of the second tongue-and-groove joint 2 and the protective layer 15. At the same time, a steel frame 11 structure is installed outside the protective layer 15 and inside the exterior wall panel 5. The steel frame 11 is an aluminum plate structure. The top and outer side of the steel frame 11 are connected to the top inner side of the exterior wall panel 5 and the inner side of the vertical plate respectively by connecting screws and other connectors. The steel frame 11 is installed in real time according to the on-site construction conditions and needs. The installation strength of the exterior wall panel 5 can be further improved by the steel frame 11, thermal insulation rock wool 9 and other structures. An eaves 16 is also provided on the vertical plate on the outer side of the exterior wall panel 5, with the eaves 16 protruding from the top of the vertical plate.

[0031] Furthermore, a downward-facing mounting groove 6 is pre-set on the bottom outer side of the main window frame 3. The mounting groove 6 is arranged along the length of the main window frame 3, improving the effective mating surface between the mounting groove 6 and the top of the exterior wall panel 5. After the mounting groove 6 and the exterior wall panel 5 are connected, a horizontal gap will still be formed between the opening at the bottom of the mounting groove 6 and the upper surface of the exterior wall panel 5. To prevent external water seepage, weather-resistant sealant 10 needs to be applied to the outside of the mounting groove 6 and the upper surface of the exterior wall panel 5 to ensure the water tightness and air tightness of the exterior window installation.

[0032] Furthermore, the connection point formed between the exterior wall panel 5 and the main window frame 3, or the position where the weather-resistant sealant 10 is applied, is lower than the position of the inner platform of the window opening. That is, the outdoor window sill plane is lower than the indoor window sill plane, and the height difference between the two is 5mm. The top of the first tongue and groove 1 is coated with waterproof coating 7 downwards. This not only improves the waterproof effect in terms of height, but also further enhances the anti-leakage performance in combination with the waterproof coating 7.

[0033] Furthermore, the main window frame 3 includes a first window frame and a second window frame, such as... Figure 4As shown, the first window frame and the second window frame are connected together by a snap-fit ​​mechanism. The first window frame 3.1 is located on the indoor side, and the second window frame 3.2 consists of two parts: one part is located below the first window frame 3.1 and is directly placed on the waterproof mortar 4, and the other part is located on the outdoor side. The two parts of the second window frame 3.2 are connected together by connecting strips 17. Two sets of connecting strips 17 are provided, distributed vertically along the length of the main window frame 3. The first window frame 3.1 and the bottom second window frame 3.2 are snapped together by an inverted snap-fit ​​mechanism, and a glass window 12 is installed between the first window frame 3.1 and the second window frame 3.2. Sealant is applied between the first window frame 3.1 and the glass window 12, and between the second window frame 3.2 and the glass window 12, to improve the sealing effect and also to increase the installation strength of the glass window 12.

[0034] Furthermore, to enhance the installation strength of the main window frame 3, nylon expansion nails 13 are installed between the main window frame 3 and the first tongue-and-groove joint 1. Specifically, the nylon expansion nails 13 are positioned near the interior side of the second window frame 3.2 (located below the first window frame 3.1), which facilitates their placement. The nylon expansion nails 13 penetrate the waterproof mortar 4 and are driven into the first tongue-and-groove joint 1, with the depth of insertion into the first tongue-and-groove joint 1 exceeding the height of the second tongue-and-groove joint 2, thus ensuring the installation strength of the main window frame 3.

Claims

1. A double-tongue-and-groove frameless exterior window structure, characterized in that, It includes a first tongue and a second tongue, which are distributed in a stepped manner from the inside to the outside of the window opening. The first tongue is provided with a main window frame, and waterproof mortar is provided between the main window frame and the first tongue. The second tongue is provided with an exterior wall panel. The main window frame has a downward-facing mounting groove on the side near the exterior wall panel. The exterior wall panel is embedded in the mounting groove and its position is lower than the inner platform of the window opening.

2. The double tongue-and-groove frameless exterior window structure according to claim 1, characterized in that, Waterproof coating is applied to the first tongue and the second tongue, and the coating extends from the highest point inside the first tongue to the outside of the second tongue, turning downwards and outwards by at least 150 mm.

3. The double tongue-and-groove frameless exterior window structure according to claim 1, characterized in that, Waterproof mortar is provided between the main window frame and the first tongue and groove joint, and sealant is provided on the outside of the waterproof mortar and between the main window frame and the first tongue and groove joint.

4. The double tongue-and-groove frameless exterior window structure according to claim 1, characterized in that, Thermal insulation rock wool is provided between the exterior wall panel and the second tongue and groove joint.

5. The double tongue-and-groove frameless exterior window structure according to claim 1, characterized in that, Weather-resistant sealant is also provided between the mounting groove and the exterior wall panel.

6. The double tongue-and-groove frameless exterior window structure according to claim 1, characterized in that, It also includes a steel frame located on the outside of the window opening wall, on which the exterior wall panel is installed.

7. The double tongue-and-groove frameless exterior window structure according to claim 1, characterized in that, The connection between the exterior wall panel and the mounting groove is at least 5mm lower than the inner platform of the window opening.

8. A double tongue-and-groove frameless exterior window structure according to any one of claims 1 to 7, characterized in that, The main window frame includes a first window frame and a second window frame, with a glass window provided between the first window frame and the second window frame.

9. A double tongue-and-groove frameless exterior window structure according to claim 8, characterized in that, A plurality of nylon expansion nails are provided between the second window frame and the first tongue and groove joint, and the nylon expansion nails are arranged at intervals along the length of the main window frame.

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