Building outer window frame bottom edge embedded water apron flow guide groove

Abstract

The utility model discloses a building outer window frame bottom edge embedded type water apron flow guide groove, including window frame, window along and flow guide groove subassembly, flow guide groove subassembly contain the window frame flow guide board, intermediate flow guide board and window along flow guide board of successive concatenation, three are L shape straight -plate, arc plate, inclined straight -plate respectively, and the seamless butt joint forms the flow guide path in proper order, the window frame bottom is equipped with inverted T shape inlay male part, and the window along is equipped with adaptive inlay recess correspondingly, and the inlay surface is equipped with sealant layer. The size of each flow guide board is adapted and is aluminium alloy integrated moulding, is fixed through the snap -fit and screw, solves traditional device flow guiding difference, and the problem that easily seeps water, installation maintenance is inconvenient, and the structure is stable, and the practicality is strong.

Description

Technical Field

[0001] This utility model provides a drip edge guide channel, and particularly relates to a drip edge guide channel embedded in the bottom edge of a building's exterior window frame. Background Technology

[0002] The rain-drip strip at the bottom of the exterior window frame is an important drainage and protection device installed at the connection between the exterior window frame and the window sill. Its main function is to quickly divert rainwater around the window frame to the outside by creating a path for water flow, preventing rainwater from accumulating at the connection or seeping into the room, thereby protecting the building wall and the connection structure between the window frame and the window sill, and extending the service life of building components.

[0003] Existing drip edge channels are mostly single straight plate structures, typically fixed directly to the window frame or window sill surface with screws. While some have simple splicing structures, they are mostly flat overlaps, lacking a dedicated embedded snap-fit ​​design. On the one hand, due to the single drainage path and lack of optimized design with curvature or tilt angle, rainwater tends to stagnate at the corners, resulting in low drainage efficiency. On the other hand, due to the simple connection method, after long-term exposure to rainwater erosion and temperature changes, the screws are prone to loosening, and gaps easily appear at the overlaps, leading to frequent rainwater seepage problems. Furthermore, installation requires precise positioning of each fixing point, and disassembly requires unscrewing each screw individually, resulting in cumbersome installation and inconvenient maintenance. Utility Model Content

[0004] To address the aforementioned problems, this application provides an embedded rainwater drainage channel at the bottom edge of a building's exterior window frame. This solves the issue of easy rainwater infiltration, improves drainage efficiency, facilitates installation and maintenance, and enhances connection stability.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a drainage channel for an embedded drip edge of a building exterior window frame, comprising a vertically arranged window frame, a horizontally arranged window sill at the bottom of the window frame, and a drainage channel assembly installed at the connection between the bottom edge of the window frame and the upper surface of the window sill;

[0006] The airflow guide assembly includes a window frame airflow guide plate, a middle airflow guide plate, and a window sill airflow guide plate connected in sequence. The window frame airflow guide plate is an L-shaped straight plate structure, with its vertical side fixedly connected to the inner side of the bottom edge of the window frame and its horizontal side extending horizontally outward. The middle airflow guide plate is an upwardly convex arc-shaped plate structure, with its inner side seamlessly connected to the end of the horizontal side of the window frame airflow guide plate. The window sill airflow guide plate is a straight plate structure sloping downward outward, with its inner side smoothly connected to the outer side of the middle airflow guide plate and its outer side extending to the outer edge of the window sill.

[0007] The bottom of the window frame is provided with an inverted T-shaped fitting protrusion, and the upper surface of the window sill is provided with an inverted T-shaped fitting groove that matches the fitting protrusion. The fitting protrusion is embedded in the fitting groove to form an embedded connection, and a sealing adhesive layer is provided between the fitting surfaces.

[0008] Preferably, the horizontal side length of the window frame guide plate is 5-8cm, and the vertical side height is consistent with the thickness of the window frame.

[0009] Preferably, the radius of the arc of the intermediate guide plate is 3-5cm, and the top of the arc is flush with the outer side of the bottom edge of the window frame.

[0010] Preferably, the angle of inclination of the window sill guide plate to the horizontal direction is 15°-25°, and the plate thickness is 2-3mm.

[0011] Preferably, the window frame guide plate, the middle guide plate, and the window sill guide plate are integrally formed structures and are made of aluminum alloy.

[0012] Preferably, the height of the fitting protrusion is 1-2cm, and the depth of the fitting groove is 0.2-0.3cm greater than the height of the fitting protrusion.

[0013] Preferably, the outer edge of the window sill guide plate has an upward-curving folded edge at its end, with a folded edge height of 0.5-1cm.

[0014] Preferably, the window frame baffle is fixed to the window frame with stainless steel self-tapping screws, with a screw spacing of 15-20cm.

[0015] One or more technical solutions provided in this application embodiment have at least the following technical effects or advantages compared with the prior art:

[0016] This device primarily addresses the problems of poor rainwater drainage and inefficient flow at the connection between existing window frames and window sills, caused by a single, loosely connected drainage structure. It also solves the issues of cumbersome installation and inconvenient maintenance associated with traditional drip edges. The device utilizes a drainage channel assembly at the window frame and window sill connection, consisting of a window frame drainage plate, a middle drainage plate, and a window sill drainage plate connected sequentially. This assembly leverages the interlocking of the L-shaped clips on the window frame drainage plate with the L-shaped slots in the window frame and the screw fixing, as well as the sliding of the T-shaped clips on the middle drainage plate with the T-shaped slots in the window frame drainage plate. The elastic engagement of the curved head of the central air deflector and the curved groove of the window edge air deflector, combined with the fitting of the limiting groove and the limiting protrusion of the window edge air deflector, forms multiple tight embedded connections. This not only improves the air deflection effect by creating a smooth flow path through the shape matching of each air deflector, but also enhances the connection stability with the interference fit structure, preventing rainwater from seeping in through gaps. At the same time, each component is installed by snap-fit, without complicated tools, and individual components can be disassembled individually, achieving convenient installation and maintenance.

[0017] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall installation of the embedded drip edge guide channel of the exterior window frame of a building according to the present invention;

[0019] Figure 2 This is a cross-sectional view of the guide channel component of the embedded drip edge guide channel of the bottom edge of the exterior window frame of a building according to the present invention.

[0020] Figure 3 This is a partial enlarged view of the embedded connection part of the embedded drip edge guide channel of the bottom edge of the building's exterior window frame according to this utility model.

[0021] As shown in the figure:

[0022] 1. Window frame; 2. Window sill; 3. Airflow channel assembly; 4. Window frame airflow deflector; 5. Middle airflow deflector; 6. Window sill airflow deflector; Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] like Figure 1 and Figure 2As shown, a drainage channel embedded in the bottom edge of a building's exterior window frame includes a vertically arranged window frame 1, a horizontally arranged window sill 2 at the bottom of the window frame 1, and a drainage channel assembly 3 installed at the connection between the bottom edge of the window frame 1 and the upper surface of the window sill 2. The drainage channel assembly 3 includes a window frame drainage plate 4, a middle drainage plate 5, and a window sill drainage plate 6 connected in sequence. The window frame drainage plate 4 has an L-shaped straight plate structure, with its vertical edge fixedly connected to the inner side of the bottom edge of the window frame 1 and its horizontal edge extending horizontally outward. The middle drainage plate 5 is upward-facing. The raised arc-shaped plate structure has its inner side seamlessly connected to the end of the horizontal edge of the window frame guide plate 4. The window sill guide plate 6 is a straight plate structure that slopes downwards to the outside. Its inner side is smoothly connected to the outer side of the middle guide plate 5. The outer side extends to the outer edge of the window sill 2. The bottom of the window frame 1 is provided with a fitting protrusion with an inverted T-shaped cross-section. The upper surface of the window sill 2 is provided with an inverted T-shaped fitting groove that matches the fitting protrusion. The fitting protrusion is embedded in the fitting groove to form an embedded connection, and a sealing layer is provided between the fitting surfaces.

[0027] In this implementation scheme, the L-shaped structure of the window frame guide plate 4 allows its vertical edge to fit tightly against the inner side of the window frame 1 to form an initial water barrier, while its horizontal edge provides initial guidance for the water flow. The arc-shaped structure of the middle guide plate 5 reduces water flow resistance, allowing rainwater to flow smoothly. The inclined setting of the window sill guide plate 6 accelerates rainwater discharge. The three components work together to form a complete drainage path. The inverted T-shaped interlocking structure of the window frame 1 and the window sill 2, combined with the sealing layer, enhances the connection and seals the water, preventing rainwater from seeping in from the bottom gaps. The reasonable coordination of each component not only improves the drainage efficiency but also strengthens the overall connection stability, solving the problems of poor drainage and easy water leakage in traditional structures.

[0028] like Figure 3 As shown, the horizontal side length of the window frame guide plate 4 is 5-8cm, and the vertical side height is the same as the thickness of the window frame 1. The arc radius of the middle guide plate 5 is 3-5cm, and the top of the arc is flush with the outer side of the bottom edge of the window frame 1. The tilt angle of the window sill guide plate 6 with the horizontal direction is 15°-25°, and the plate thickness is 2-3mm. The outer edge end is provided with an upward-curving folded edge with a height of 0.5-1cm. The window frame guide plate 4 is fixed to the window frame 1 with stainless steel self-tapping screws with a screw spacing of 15-20cm. The height of the fitting protrusion is 1-2cm, and the depth of the fitting groove is 0.2-0.3cm greater than the height of the fitting protrusion. The window frame guide plate 4, the middle guide plate 5, and the window sill guide plate 6 are integrally formed structures made of aluminum alloy.

[0029] In this implementation scheme, the dimensions of the window frame guide plate 4 are designed to fit the thickness of the window frame 1 and form a suitable guiding length. The arc parameters of the middle guide plate 5 ensure a natural water flow transition without protruding from the window frame 1. The angle and thickness design of the window sill guide plate 6 balances drainage efficiency and structural strength, and the folded edge prevents rainwater backflow. The fixing method and spacing of the stainless steel self-tapping screws ensure a stable connection. The dimensional difference between the fitting protrusion and groove facilitates installation while ensuring a tight fit. The one-piece molded aluminum alloy material enhances the overall durability and waterproofness of the guide channel assembly 3. The adaptation of various dimensions and materials makes the device performance more stable.

[0030] In one or more feasible embodiments, the inner side of the vertical edge of the window frame guide plate 4 in the guide channel assembly 3 is provided with an L-shaped clip that matches the L-shaped slot preset on the inner side of the bottom edge of the window frame 1. During installation, the L-shaped clip is aligned with the L-shaped slot of the window frame 1 and pushed in horizontally, so that the vertical edge of the window frame guide plate 4 fits tightly against the inner wall of the window frame 1, and the bottom of the horizontal edge is fitted into the shallow groove preset on the upper surface of the window sill 2. At the same time, stainless steel self-tapping screws are passed through the screw holes preset on the vertical edge of the window frame guide plate 4 and fixed to the window frame 1, forming a double embedded connection. The inner side of the middle guide plate 5 is provided with a T-shaped clip extending inward. The T-shaped clip is precisely matched with the T-shaped slot preset at the end of the horizontal edge of the window frame guide plate 4. During installation, the T-shaped clip is slid in along the length of the slot and the mating surfaces of the two are completely in contact. The fit between the clip and the slot is less than 0.5mm. The bottom of the outer side of the middle guide plate 5 is provided with a downward-protruding arc-shaped clip, and the top of the inner side of the window sill guide plate 6 is provided with an arc-shaped slot that matches the arc-shaped clip. During installation, the arc-shaped clip is pressed to elastically snap into the arc-shaped slot. After the two are engaged, the connection surface of the two forms a continuous arc transition. The bottom of the window sill guide plate 6 is also provided with a limiting groove that matches the limiting protrusion on the upper surface of the window sill 2. The fitting depth between the groove and the protrusion is 1-2mm. All of the above engagement structures adopt an interference fit design, which not only ensures the convenience of installation, but also improves the overall stability through multiple engagements. The tight fit of each connection part effectively blocks the rainwater infiltration path, and a single part can be disassembled and replaced individually when damaged, which is convenient for later maintenance.

[0031] When installing and using this device, it is necessary to use an electric drill to drill holes in the preset position of the window frame 1, and then use a Phillips screwdriver to screw stainless steel self-tapping screws into the window frame guide plate 4 to fix it. Before assembling the fitting protrusion and the fitting groove, silicone sealant (such as neutral silicone weather-resistant sealant) should be evenly applied to the fitting surface to form a sealant layer. After installation, the tilt angle of the window frame guide plate 6 can be calibrated with a level to ensure that its drainage direction is accurate.

[0032] Specifically, during construction, first clean the dust and debris at the connection between the bottom edge of the window frame 1 and the window sill 2. Use a measuring tape to measure the corresponding dimensions of the fitting protrusion and the fitting groove, ensuring the deviation is within ±0.1cm. Then, slowly push the fitting protrusion of the window frame 1 into the fitting groove of the window sill 2. After pushing it to the bottom, gently tap the side of the window frame 1 with a rubber mallet to ensure it is properly fitted. Next, take the cut aluminum alloy guide channel assembly 3, align the L-shaped clip of the window frame guide plate 4 with the inner groove of the window frame 1, and move it horizontally. Smoothly push it in until the horizontal edge is flush with the upper surface of the window sill 2. Then, use an electric drill to drill holes at 15-20cm intervals at the pre-set screw holes on the vertical edge of the window frame baffle 4. Use a Phillips screwdriver to screw M4 stainless steel self-tapping screws into the holes to fix them in place. Finally, apply silicone sealant to the gaps in the mating surfaces and the joints of each baffle. After the sealant has cured (usually 24 hours), use a spray bottle to simulate rainfall to test the drainage effect. If local water seepage is found, use a utility knife to remove the original sealant layer and reapply sealant.

[0033] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A drainage channel for an embedded drip edge on the bottom edge of a building's exterior window frame, characterized in that, It includes a vertically arranged window frame (1), a horizontally arranged window sill (2) at the bottom of the window frame (1), and a flow channel assembly (3) installed at the connection between the bottom edge of the window frame (1) and the upper surface of the window sill (2); The airflow guide assembly (3) includes a window frame airflow guide plate (4), a middle airflow guide plate (5), and a window sill airflow guide plate (6) connected in sequence. The window frame airflow guide plate (4) is an L-shaped straight plate structure, with its vertical side fixedly connected to the inner side of the bottom edge of the window frame (1) and its horizontal side extending horizontally to the outside. The middle airflow guide plate (5) is an upwardly protruding arc-shaped plate structure, with its inner side seamlessly connected to the end of the horizontal side of the window frame airflow guide plate (4). The window sill airflow guide plate (6) is a straight plate structure that slopes downward to the outside, with its inner side smoothly connected to the outer side of the middle airflow guide plate (5) and its outer side extending to the outer edge of the window sill (2). The bottom of the window frame (1) is provided with an inverted T-shaped fitting protrusion, and the upper surface of the window sill (2) is provided with an inverted T-shaped fitting groove that is adapted to the fitting protrusion. The fitting protrusion is embedded in the fitting groove to form an embedded connection, and a sealing adhesive layer is provided between the fitting surfaces.

2. The water-repellent channel embedded in the bottom edge of a building's exterior window frame according to claim 1, characterized in that, The horizontal side length of the window frame guide plate (4) is 5-8cm, and the vertical side height is consistent with the thickness of the window frame (1).

3. The water-repellent channel embedded in the bottom edge of a building's exterior window frame according to claim 1, characterized in that, The radius of the arc of the intermediate guide plate (5) is 3-5cm, and the top of the arc is flush with the outer side of the bottom edge of the window frame (1).

4. The water-repellent channel embedded in the bottom edge of a building's exterior window frame according to claim 1, characterized in that, The angle of inclination of the window sill guide plate (6) to the horizontal direction is 15°-25°, and the plate thickness is 2-3mm.

5. A drainage channel for an embedded drip edge on the bottom edge of a building's exterior window frame according to claim 1, characterized in that, The window frame guide plate (4), the middle guide plate (5) and the window sill guide plate (6) are integrally formed structures and are made of aluminum alloy.

6. The water-repellent channel embedded in the bottom edge of a building exterior window frame according to claim 1, characterized in that, The height of the fitting protrusion is 1-2cm, and the depth of the fitting groove is 0.2-0.3cm greater than the height of the fitting protrusion.

7. A drainage channel for an embedded drip edge on the bottom edge of a building's exterior window frame according to claim 1, characterized in that, The outer edge of the window sill guide plate (6) has an upward-curving fold at the end, with a fold height of 0.5-1cm.

8. The water-repellent channel embedded in the bottom edge of a building's exterior window frame according to claim 1, characterized in that, The window frame guide plate (4) is fixed to the window frame (1) by stainless steel self-tapping screws with a screw spacing of 15-20cm.

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