Hidden drainage window frame

Abstract

This utility model provides a concealed drainage window frame, belonging to the field of door and window technology. It solves the problem of reducing noise while maintaining the drainage performance and aesthetics of existing window frames. The cover plate of this concealed drainage window frame is flush with the side drain outlet. In the vertical state, a certain drainage gap is maintained at the side drain outlet. Flipping outwards opens the side drain outlet, and the inwardly flipped cover plate contacts the vertical plane on the stepped groove, forming a seal that completely closes and conceals the side drain outlet, preventing airflow and noise. This sealing effect increases with the airflow thrust. This design reduces or eliminates noise generation while ensuring drainage performance and aesthetics.

Description

Technical Field

[0001] This utility model belongs to the field of door and window technology, and relates to a window frame, and more particularly to a concealed drainage window frame. Background Technology

[0002] There are two existing types of window frame drainage: exposed drainage and concealed drainage. Exposed drainage typically involves directly creating a hole on the side of the window frame near the bottom, allowing rainwater to drain directly through. This is usually accompanied by a plastic drain cover and filter. The exposed drainage holes affect the overall appearance, and their small size and exposure make them prone to dust accumulation and blockage, hindering timely water drainage. Concealed drainage, on the other hand, involves creating grooves inside the window frame profile to guide rainwater through the material, directing it into a collection chamber. The bottom of the collection chamber connects to the outside via a drain outlet. Rainwater flows uniformly from inside the profile into the collection chamber for centralized drainage. A cover is often installed at the drain outlet to conceal it, prevent insect infestation, and enhance aesthetics. However, existing covers, in order to ensure drainage performance, are often only partially installed at the drain outlet or leave gaps. This allows wind to enter through these gaps during convective weather, creating a whistling sound. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a concealed drainage window frame. It solves the technical problem of reducing noise while maintaining the drainage performance and aesthetics of existing window frames.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A concealed drainage window frame includes a bottom profile of the window frame. The bottom profile has an equal pressure chamber and a water collection chamber that are interconnected. The side of the bottom profile has a side drain outlet that communicates with the water collection chamber. The side drain outlet has an upper edge and a lower edge. A stepped groove that is recessed inward is formed at the lower edge and the bottom of the stepped groove is a vertical plane. A cover plate that can swing outward toward the side drain outlet is rotatably connected at the upper edge. When the cover plate is in a vertical state under the action of gravity, the outer side of the cover plate is flush with the side surface of the bottom profile of the window frame and there is a water passage gap between the inner side of the cover plate and the stepped groove. When the cover plate swings inward, it can abut against the vertical plane to form a seal.

[0006] The bottom profile of this window frame has an equal pressure chamber and a water collection chamber inside. Rainwater is collected in the equal pressure chamber and enters the water collection chamber for centralized discharge. The side of the water collection chamber has a side drain outlet for drainage. A cover plate is rotatably connected to the upper edge of the side drain outlet. The cover plate can be kept vertical by gravity. In the vertical state, its outer surface is flush with the outer surface of the bottom profile of the window frame. In this way, the side drain outlet on the window frame is not exposed when not draining, which can keep out mosquitoes and insects while ensuring aesthetics.

[0007] When rainwater collects and is discharged from the water collection chamber, the discharged rainwater can push the cover plate to flip it outward. Of course, when the rainwater flow is small, it can flow directly through the water passage gap without affecting drainage. When the water flow is too large and the impact force is increased, it can smoothly push the cover plate open and discharge outward, ensuring drainage performance.

[0008] A stepped groove is provided at the lower edge of the side drain outlet. When the cover plate hangs naturally under its own weight, it does not contact the stepped groove, maintaining the aforementioned water passage gap and thus preserving a certain degree of drainage performance. During convective weather, because the cover plate is flush with the window frame surface without any protrusions, the airflow will push the cover plate to flip inward. The inwardly flipping cover plate contacts the vertical plane on the stepped groove, forming a barrier that completely seals and hides the side drain outlet, preventing airflow from entering and generating noise. This barrier sealing effect increases with the increase of airflow thrust. Therefore, in summary, the cover plate of this application, installed at the side drain outlet and cooperating with the stepped groove, reduces or avoids noise generation while ensuring drainage performance and aesthetics.

[0009] In the aforementioned concealed drainage window frame, the bottom of the water collection cavity is an inclined surface, and the stepped groove is opened at the lowest position of the inclined surface and the vertical plane is adjacent to the inclined surface.

[0010] The bottom surface of the water collection chamber in this application is an inclined surface, and the stepped groove is directly connected to the lowest point of the inclined surface. The stepped groove further extends the lowest point of the inclined surface downward. When rainwater enters the water collection chamber, it can flow downward along the inclined surface and the stepped groove to drain water. When the flow rate is small, it can drain water smoothly by utilizing the water passage gap. When the flow rate is large, it can also reduce the distance to push open the cover plate. Only a small rotation of the cover plate is needed to open a larger drainage distance to drain water diagonally downward, ensuring drainage performance.

[0011] In the aforementioned concealed drainage window frame, an arc-shaped portion protrudes from the top wall of the water collection cavity near the side drain outlet. The arc-shaped portion extends outward from the side drain outlet, and the arc-shaped portion and the upper edge surround to form a rotating cavity with an opening. The opening is positioned facing outward from the side drain outlet. The top of the cover plate has a rotating portion that cooperates with the rotating cavity. The rotating portion is embedded in the rotating cavity and can rotate relative to the rotating cavity.

[0012] The cover plate of this application is installed through an outwardly extending arc-shaped part, which extends outward to form a rotating cavity. The opening of the rotating cavity also faces outward. After the cover plate is connected to the rotating cavity, the cover plate is in a downward pressing state, similar to a downward pressing edge blocking the upper part of the side drain. There is basically no obvious gap between the cover plate and the upper edge of the side drain. When airflow passes through, it cannot be poured in from this connection position. This reduces gaps, ensures aesthetics, and avoids noise generation.

[0013] In the aforementioned concealed drainage window frame, the cover plate includes a plate body and the aforementioned rotating part, which are integrally formed. The rotating part is inclined upwards, and when the rotating part is embedded in the rotating cavity, the plate body can remain vertical under its own weight.

[0014] In the aforementioned concealed drainage window frame, the inner side of the rotating part has an inclined inner surface, and the end of the arc-shaped part is bent upward. When the plate abuts against the vertical plane, the inner surface and the end of the arc-shaped part are in contact.

[0015] In the event of severe convective weather, the panel rests against a vertical plane to prevent air from entering. There is also an inner surface between the cover plate at the top edge and the end of the arc-shaped part to form a seal to prevent strong air from being forcibly injected through this connection. This design further reduces noise generation.

[0016] In the aforementioned concealed drainage window frame, the outer side of the rotating part has an inclined outer surface, and the upper edge has a downwardly curved and extended abutment. When the plate rotates outward, the abutment can form abutment with the outer surface to limit the angle of outward rotation.

[0017] The outward rotation angle of this cover is limited by the outer surface and the blocking part, which ensures drainage performance while preventing it from being blown away by the airflow during drainage, thus improving its aesthetics.

[0018] In the aforementioned concealed drainage window frame, the pressure equalization chamber is located above the water collection chamber, and a drainage hole connecting the two is provided on the bottom profile of the window frame between them.

[0019] The beneficial effects of this utility model are as follows: The cover plate is installed flush with the side drain outlet. In the vertical state, a certain drainage gap is maintained at the side drain outlet. When the side drain outlet is opened by flipping it outward, the cover plate flipped inward contacts the vertical plane on the stepped groove to form abutment, which can directly and completely seal and hide the side drain outlet, preventing airflow from entering and generating noise. This abutment sealing effect is enhanced as the airflow thrust increases. This design reduces or avoids the generation of noise while ensuring drainage performance and aesthetics. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the cover plate side mounting of this utility model;

[0021] Figure 2 This is a schematic diagram of the cover plate of this utility model in a vertical position;

[0022] Figure 3 This is a schematic diagram of the cover plate of this utility model in the open state;

[0023] Figure 4 This is a sectional view of the cover plate of this utility model in a vertical position;

[0024] Figure 5 This is a cross-sectional view of the cover plate of this utility model in the open state.

[0025] In the diagram: 1. Window frame bottom profile; 11. Pressure equalization cavity; 12. Water collection cavity; 13. Side drain outlet; 14. Step groove; 15. Vertical plane; 16. Water passage gap; 17. Inclined surface; 18. Curved part; 181. Rotating cavity; 19. Drain hole; 2. Cover plate; 21. Rotating part; 22. Plate; 23. Inner backing surface; 24. Outer backing surface; 25. Supporting part. Detailed Implementation

[0026] like Figures 1-5The concealed drainage window frame shown includes a window frame profile, on which glass is installed. The window frame profile includes an upper profile, left and right profiles and a bottom profile 1. The bottom profile 1 has an equal pressure chamber 11 and a water collection chamber 12 that are interconnected. The equal pressure chamber 11 is located above the water collection chamber 12 and a drainage hole 19 connecting the two is opened on the bottom profile 1. The bottom profile 1 of the window frame has a side drain outlet 13 communicating with the water collection cavity 12. The side drain outlet 13 has an upper edge and a lower edge. A recessed stepped groove 14 is formed at the lower edge, and the bottom of the stepped groove 14 is a vertical plane 15. A cover plate 2 is rotatably connected at the upper edge, which can swing outward from the side drain outlet 13. When the cover plate 2 is in a vertical state under the action of gravity, the outer side of the cover plate 2 is flush with the side surface of the bottom profile 1 of the window frame, and there is a water passage gap 16 between the inner side of the cover plate 2 and the stepped groove 14. When the cover plate 2 swings inward, it can abut against the vertical plane 15 to form a seal. The bottom of the cover plate 2 and the bottom side wall of the stepped groove 14 are fitted with a gap, which ensures small drainage while reducing gaps to maintain aesthetics, and can also effectively prevent airflow and reduce noise. The bottom profile 1 of this window frame has an equal pressure chamber 11 and a water collection chamber 12. Rainwater flows from the equal pressure chamber 11 into the water collection chamber 12 for centralized discharge. The side of the water collection chamber 12 has a side drain outlet 13 for drainage. A cover plate 2 is rotatably connected to the upper edge of the side drain outlet 13. The cover plate 2 can maintain a vertical position by its own weight. In the vertical position, its outer surface is flush with the outer surface of the bottom profile 1 of the window frame. In this way, when there is no drainage, the side drain outlet 13 on the window frame is not exposed, which can cover mosquitoes and maintain aesthetics. When there is rainwater in the water collection chamber 12, the discharged rainwater can push the cover plate 2 to flip it outward. Of course, when the rainwater flow is small, it can flow directly through the water passage gap 16 without affecting drainage. When the water flow is large and the impact force is strong, it can smoothly push open the cover plate 2 to discharge outward, ensuring drainage performance. A stepped groove 14 is provided at the lower edge of the side drain outlet 13. When the cover plate 2 hangs down naturally under its own weight, it does not contact the stepped groove 14, thus maintaining the aforementioned water passage gap 16 and preserving a certain drainage performance. When convective weather occurs, because the cover plate 2 is flush with the window frame surface without any protrusion, the airflow will push the cover plate 2 to flip inward. The inwardly flipping cover plate 2 contacts the vertical plane 15 on the stepped groove 14, forming a barrier that can directly and completely seal and hide the side drain outlet 13, preventing airflow from entering and generating noise. This barrier sealing effect is enhanced as the airflow thrust increases. Therefore, in summary, the cover plate 2 of this application, installed at the side drain outlet 13 and cooperating with the stepped groove 14, achieves reduced or avoided noise generation while ensuring drainage performance and aesthetics. The arrows not marked in the figure indicate the direction of rainwater flow.

[0027] Furthermore, the bottom of the water collection cavity 12 is an inclined surface 17, and the stepped groove 14 is opened at the lowest position of the inclined surface 17, with the vertical plane 15 adjoining the inclined surface 17. The bottom surface of the water collection cavity 12 of this application is entirely an inclined surface 17, and the stepped groove 14 directly adjoins the lowest point of the inclined surface 17. The stepped groove 14 further extends the lowest point of the inclined surface 17 downward. When rainwater enters the water collection cavity 12, it can flow downward along the inclined surface 17 and the stepped groove 14 to drain. When the flow rate is small, it can drain smoothly using the water passage gap 16. When the flow rate is large, it can also reduce the distance to push open the cover plate 2. Only a small rotation of the cover plate 2 is needed to open a larger drainage distance to drain downwards, ensuring drainage performance.

[0028] Furthermore, the cover plate 2 includes a plate body 22 and a rotating part 21, which are integrally formed. The rotating part 21 is inclined upwards. When the rotating part 21 is embedded in the rotating cavity 181, the plate body 22 can remain vertical under its own weight. The top wall of the water collection cavity 12 has an arc-shaped part 18 protruding near the side drain outlet 13. The arc-shaped part 18 extends outwards from the side drain outlet 13, and the arc-shaped part 18 and the upper edge surround to form a rotating cavity 181 with an opening. The opening is set outwards from the side drain outlet 13. The top of the cover plate 2 has a rotating part 21 that cooperates with the rotating cavity 181. When the cover plate 2 is installed, it slides into the rotating cavity 181 laterally. The cover plate 2 body extends into the rotating cavity 181 from the opening and hangs down freely, and can rotate relative to the rotating cavity 181. The cover plate 2 of this application is installed through an outwardly extending arc-shaped portion 18. The arc-shaped portion 18 extends outward to form a rotating cavity 181. The opening of the rotating cavity 181 also faces outward. After the cover plate 2 is connected to the rotating cavity 181, the cover plate 2 is in a downward-pressed state. Similar to the downward-pressed back edge, it blocks the upper position of the side drain outlet 13. There is basically no obvious gap between the cover plate 2 and the upper edge of the side drain outlet 13. When airflow passes through, it cannot be poured in from this connection position. This reduces the gaps, ensures aesthetics, and avoids noise generation.

[0029] Furthermore, the inner side of the rotating part 21 has an inclined inner abutment surface 23, and the end of the arc-shaped part 18 is curved upwards. When the plate 22 abuts against the vertical plane 15, the inner abutment surface 23 and the end of the arc-shaped part 18 are in contact. The outer side of the rotating part 21 has an inclined outer abutment surface 24, and the upper edge has a downwardly curved abutment part 25. When the plate 22 rotates outwards, the abutment part 25 can abut against the outer abutment surface 24 to limit the angle of outward rotation. In the event of strong convective weather, the plate 22 abuts against the vertical plane 15 to prevent air from entering. There is also an inner abutment surface 23 and the end of the arc-shaped part 18 forming a seal between the cover plate 2 at the upper edge and the arc-shaped part 18 to prevent strong air from forcibly entering from this connection point. This design further reduces noise generation. The outward rotation angle of this cover plate 2 is limited by the abutment of the outer abutment surface 24 and the abutment part 25, which ensures drainage performance while preventing it from being blown away by the airflow during drainage, thus improving aesthetics.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. At the same time, the basic principles, main features, and advantages of this utility model have been shown and described above, which should be understood by those skilled in the art.

Claims

1. A concealed drainage window frame, comprising a bottom profile (1) of the window frame, wherein the bottom profile (1) of the window frame has an equal pressure cavity (11) and a water collection cavity (12) that are interconnected, characterized in that, The side of the bottom profile (1) of the window frame has a side drain outlet (13) that communicates with the water collection cavity (12). The side drain outlet (13) has an upper edge and a lower edge. A stepped groove (14) is recessed inward at the lower edge and the bottom of the stepped groove (14) is a vertical plane (15). A cover plate (2) that can swing outward from the side drain outlet (13) is rotatably connected at the upper edge. When the cover plate (2) is in a vertical state under the action of gravity, the outer side of the cover plate (2) is flush with the side surface of the bottom profile (1) of the window frame and there is a water passage gap (16) between the inner side of the cover plate (2) and the stepped groove (14). When the cover plate (2) swings inward, it can abut against the vertical plane (15) to form a seal.

2. A concealed drainage window frame according to claim 1, characterized in that, The bottom of the water collection cavity (12) is an inclined surface (17), and the stepped groove (14) is opened at the lowest position of the inclined surface (17) and the vertical plane (15) is adjacent to the inclined surface (17).

3. A concealed drainage window frame according to claim 2, characterized in that, The top wall of the water collection cavity (12) protrudes from an arc-shaped part (18) near the side drain outlet (13). The arc-shaped part (18) extends outward from the side drain outlet (13). The arc-shaped part (18) and the upper edge surround and form a rotating cavity (181) with an opening. The opening is set outward from the side drain outlet (13). The top of the cover plate (2) has a rotating part (21) that cooperates with the rotating cavity (181). The rotating part (21) is embedded in the rotating cavity (181) and can rotate relative to the rotating cavity (181).

4. A concealed drainage window frame according to claim 3, characterized in that, The cover plate (2) includes a plate body (22) and the aforementioned rotating part (21), which are integrally formed. The rotating part (21) is inclined upwards. When the rotating part (21) is embedded in the rotating cavity (181), the plate body (22) can maintain a vertical state under its own gravity.

5. A concealed drainage window frame according to claim 4, characterized in that, The inner side of the rotating part (21) has an inclined inner abutment surface (23), and the end of the arc-shaped part (18) is bent upward. When the plate (22) abuts against the vertical plane (15), the inner abutment surface (23) and the end of the arc-shaped part (18) are in contact.

6. A concealed drainage window frame according to claim 5, characterized in that, The outer side of the rotating part (21) has an inclined outer surface (24), and the upper edge has a downwardly curved blocking part (25). When the plate (22) rotates outward, the blocking part (25) can block the outer surface (24) to limit the angle of outward rotation.

7. A concealed drainage window frame according to any one of claims 1-6, characterized in that, The pressure equalization chamber (11) is located above the water collection chamber (12), and a drainage hole (19) connecting the two is provided on the bottom profile (1) of the window frame between them.

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