A high-efficiency drainage window frame profile structure and its doors and windows
By adding a drainage frame to the window frame profile to create a high drainage gradient, and combining it with anti-backflow measures, the problems of poor drainage and backflow of doors and windows are solved, achieving efficient drainage and excellent water tightness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HOPO WINDOW CONTROL TECH CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-30
AI Technical Summary
Existing doors and windows have low drainage efficiency, poor wind backflow prevention capabilities, and limited water tightness levels, making it difficult to meet higher water tightness performance requirements.
A drainage frame is added to the window frame profile to create a higher drainage step difference. Through the connection of the first drainage hole, the first drainage chamber, the second drainage hole and the third drainage hole, combined with the anti-backflow drainage hole cover and the external drainage hole cover, the drainage height and the ability to prevent backflow are improved.
It achieves faster and more thorough drainage, avoids water accumulation, improves the water tightness of doors and windows, prevents rainwater backflow, and enhances the water tightness level.
Smart Images
Figure CN224432397U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of building doors and windows, and in particular to a high-efficiency drainage window frame profile structure and its doors and windows. Background Technology
[0002] Existing door and window frames typically have simple drainage holes and bottom-step drainage paths at the bottom, such as... Figure 1 As shown, this is used to drain rainwater that seeps into the frame. However, this traditional structure has significant drawbacks:
[0003] 1. Low drainage efficiency: Drainage holes are usually directly opened on the window frame profile, and their location and size are limited, resulting in poor drainage and water easily seeping into the room.
[0004] 2. Poor wind backflow prevention: Ordinary drainage holes are usually open or only covered by simple grilles. When strong winds (especially typhoons and severe convective weather) are accompanied by heavy rain, the external wind pressure can easily drive rainwater back into the internal cavity of the window frame through the drainage holes, seriously damaging the water tightness of the doors and windows, leading to problems such as indoor water seepage, damp walls, and mold.
[0005] 3. Insufficient drainage height: The drainage holes of traditional doors and windows are directly opened at the bottom of the profile cavity, which limits the height of the drainage path and easily leads to rainwater backflow.
[0006] 4. Limited water tightness rating: Due to the aforementioned problems of poor drainage, insufficient drainage height, and backflow, traditional doors and windows with simple drainage holes cannot meet higher water tightness requirements.
[0007] Therefore, there is an urgent need for a bottom drainage solution that can both efficiently drain water and effectively prevent rainwater backflow caused by wind pressure, thereby significantly improving the overall water tightness of doors and windows. Utility Model Content
[0008] The purpose of this invention is to provide a high-efficiency drainage window frame profile structure and its doors and windows to solve the above-mentioned problems.
[0009] The first aspect of this utility model provides a high-efficiency drainage window frame profile structure, including a main frame and a drainage frame. The main frame is used to support the window sash, and a first drainage cavity is provided inside the main frame. A first drainage hole is provided on the upper surface of the main frame for draining water on the main frame into the first drainage cavity. A second drainage hole is provided on the lower surface of the main frame. The drainage frame is connected to the main frame below, and a second drainage cavity is provided inside the drainage frame. The second drainage cavity communicates with the first drainage cavity through the second drainage hole. A third drainage hole is provided on the lower outer wall of the drainage frame for draining water in the second drainage cavity to the outside.
[0010] Optionally, the main frame also includes a backflow prevention drain cover, which is disposed on the second drain hole.
[0011] Optionally, the drainage frame further includes an external drainage hole cover, which is disposed on the third drainage hole.
[0012] Optionally, the window frame profile structure further includes a connecting screw and a first sealant. The connecting screw passes between the bottom of the main frame and the bottom of the drainage frame to connect the main frame and the drainage frame. The first sealant is applied to the connecting screw to seal the connection between the main frame and the drainage frame.
[0013] Optionally, the bottom surface of the second drainage cavity is an inclined surface whose height gradually decreases from the inside to the outside, and the third drainage hole is in contact with the lowest position of the inclined surface.
[0014] Optionally, the window frame profile structure further includes a second sealant, which is applied to both ends of the drainage frame to seal the second drainage cavity.
[0015] Optionally, the main frame includes a main outer frame profile, a main inner frame profile, and a first heat insulation strip. The first heat insulation strip is connected between the main outer frame profile and the main inner frame profile. The first drainage hole and the second drainage hole are both provided on the main outer frame profile.
[0016] Optionally, the first drainage hole is an inclined drainage hole, with one side of the inclined drainage hole abutting the inner wall of the main outer frame profile, and the other side of the inclined drainage hole abutting the horizontal plane where the first thermal insulation strip is located.
[0017] Optionally, the drainage frame includes an outer drainage frame profile, an inner drainage frame profile, and a second heat insulation strip, wherein the second heat insulation strip is connected between the outer drainage frame profile and the inner drainage frame profile, and the third drainage hole is disposed on the outer drainage frame profile.
[0018] The second aspect of this utility model provides a door and window, including a window frame and a window sash, wherein the window frame is provided with the above-mentioned high-efficiency drainage window frame profile structure.
[0019] The beneficial effects of this plan are:
[0020] This high-efficiency drainage window frame structure creates a greater drainage gradient by adding a drainage frame under the main frame. The drainage path is from the first drainage hole – first drainage chamber – second drainage hole – second drainage chamber – third drainage hole. Water in the first drainage chamber flows directly to the second drainage chamber due to gravity, increasing the drainage height difference and facilitating water drainage. This window frame structure achieves faster and more thorough drainage, preventing water accumulation inside the main frame. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the bottom structure of an existing door and window frame;
[0022] Figure 2 This is a schematic diagram of the window frame profile structure for efficient drainage in this solution;
[0023] Figure 3 This is a cross-sectional view of the window frame profile structure for efficient drainage in this solution, located at the end of the drainage frame.
[0024] Explanation of reference numerals in the attached figures:
[0025] 10. Main frame; 11. Main outer frame profile; 12. Main inner frame profile; 13. First heat insulation strip; 101. First drainage chamber; 102. First drainage hole; 103. Second drainage hole; 14. Anti-backflow drainage hole cover; 20. Drainage frame; 21. Drainage outer frame profile; 22. Drainage inner frame profile; 23. Second heat insulation strip; 201. Second drainage chamber; 202. Third drainage hole; 24. Outer drainage hole cover; 30. Connecting screw; 40. First sealant; 50. Second sealant. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise expressly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two components. For those skilled in the art, the specific meaning of the terms in this utility model can be understood according to the specific circumstances.
[0028] This embodiment discloses a door and window, including a window frame and a window sash, wherein the window frame is provided with a high-efficiency drainage window frame profile structure.
[0029] Specifically, see Figure 2 This embodiment discloses a high-efficiency drainage window frame profile structure, including a main frame 10 and a drainage frame 20. The main frame 10 is used to support the window sash. A first drainage chamber 101 is provided inside the main frame 10. A first drainage hole 102 is provided on the upper surface of the main frame 10 to drain water on the main frame 10 into the first drainage chamber 101. A second drainage hole 103 is provided on the lower surface of the main frame 10. The drainage frame 20 is connected to the main frame 10. A second drainage chamber 201 is provided inside the drainage frame 20. The second drainage chamber 201 communicates with the first drainage chamber 101 through the second drainage hole 103. A third drainage hole 202 is provided on the lower outer wall of the drainage frame 20 to drain water in the second drainage chamber 201 to the outside.
[0030] This high-efficiency drainage window frame structure utilizes a drainage frame 20 added below the main frame 10 to create a higher drainage gradient. The drainage path is from the first drainage hole 102 – first drainage chamber 101 – second drainage hole 103 – second drainage chamber 201 – third drainage hole 202. Water in the first drainage chamber 101 flows directly to the second drainage chamber 201 due to gravity, increasing the drainage height difference and facilitating water drainage. This window frame structure achieves faster and more thorough drainage, preventing water accumulation within the main frame. The added drainage frame 20 effectively increases the cross-sectional height of the entire frame structure, providing space for a larger internal water storage chamber and raising the backflow water level. The drainage frame 20 structure is relatively independent, easy to process and install onto the existing main frame 10 profile, with relatively low modification costs and good compatibility.
[0031] In this embodiment, the main frame 10 also includes a backflow prevention drain cover 14, which is placed over the second drain hole 103. The backflow prevention drain cover 14 is a one-way elastic silicone cover. Water flows outward to open and drain, while wind pressure closes and seals inward. The backflow prevention drain cover effectively prevents rainwater and airflow from entering the system through the drain hole in windy weather.
[0032] In this embodiment, the drainage frame 20 also includes an outer drainage hole cover 24, which is placed over the third drainage hole 202. The outer drainage hole cover 24 can also be an anti-backflow drainage hole cover 14. With the outer drainage hole cover and the inner anti-backflow drainage hole cover providing double protection, the drainage and anti-backflow effects are better, and the watertight performance is superior.
[0033] In this embodiment, the window frame profile structure further includes a connecting screw 30 and a first sealant 40. The connecting screw 30 passes between the bottom of the main frame 10 and the bottom of the drainage frame 20 to connect the main frame 10 and the drainage frame 20. The first sealant 40 is applied to the connecting screw 30 to seal the connection between the main frame 10 and the drainage frame 20. See also Figure 3The window frame profile structure also includes a second sealant 50, which is applied to both ends of the drainage frame 20 to seal the second drainage cavity 201. The main frame 10 and the drainage frame 20 are fixed together by screws and sealant, which is easy to install and avoids water seepage at the joint between the frame and the drainage frame 20.
[0034] In this embodiment, the bottom surface of the second drainage chamber 201 is an inclined surface whose height gradually decreases from the inside to the outside, and the third drainage hole 202 is in contact with the lowest position of the inclined surface. The inclined surface can accelerate the drainage of accumulated water.
[0035] In this embodiment, the main frame 10 includes a main outer frame profile 11, a main inner frame profile 12, and a first heat insulation strip 13. The first heat insulation strip 13 is connected between the main outer frame profile 11 and the main inner frame profile 12. The first drainage hole 102 and the second drainage hole 103 are both provided on the main outer frame profile 11.
[0036] In this embodiment, the first drainage hole 102 is an inclined drainage hole, with one side of the inclined drainage hole abutting the inner sidewall of the outer frame profile, and the other side of the inclined drainage hole abutting the horizontal plane where the first heat insulation strip 13 is located.
[0037] In this embodiment, the drainage frame 20 includes an outer drainage frame profile 21, an inner drainage frame profile 22, and a second heat insulation strip 23. The second heat insulation strip 23 is connected between the outer drainage frame profile 21 and the inner drainage frame profile 22, and a third drainage hole 202 is provided on the outer drainage frame profile 21.
[0038] Drainage holes are made in the drainage frame 20 and the screw positions are filled with the first sealant 40. A second drainage hole 103 is made at the bottom of the main frame 10. An anti-backflow drainage cover is installed. The drainage frame 20 is fixed to the main frame 10 with stainless steel screws. The two ends of the drainage frame 20 are sealed with sealant. A third drainage hole 202 is made on the side of the drainage frame 20. An outer drainage hole cover 24 is installed to form a closed drainage cavity, thus completing the overall drainage solution. By increasing the structure of the drainage frame 20, the drainage step height is improved. The outer drainage hole cover and the inner anti-backflow drainage hole cover provide double protection, resulting in better drainage and anti-backflow effects and superior water tightness.
[0039] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A high-efficiency drainage window frame profile structure, characterized in that, include: The main frame is used to support the window sash. The main frame has a first drainage chamber inside and a first drainage hole on the upper surface of the main frame for draining water from the main frame into the first drainage chamber. The lower surface of the main frame has a second drainage hole. A drainage frame is connected to the main frame. The drainage frame has a second drainage chamber inside, which communicates with the first drainage chamber through a second drainage hole. The lower outer wall of the drainage frame has a third drainage hole for draining the water in the second drainage chamber to the outside.
2. The high-efficiency drainage window frame profile structure according to claim 1, characterized in that, The main frame also includes a backflow prevention drainage hole cover, which is placed over the second drainage hole.
3. The high-efficiency drainage window frame profile structure according to claim 1, characterized in that, The drainage frame also includes an external drainage hole cover, which is placed over the third drainage hole.
4. The high-efficiency drainage window frame profile structure according to claim 1, characterized in that, The window frame profile structure also includes a connecting screw and a first sealant. The connecting screw passes between the bottom of the main frame and the bottom of the drainage frame to connect the main frame and the drainage frame. The first sealant is applied to the connecting screw to seal the connection between the main frame and the drainage frame.
5. The high-efficiency drainage window frame profile structure according to claim 1, characterized in that, The bottom surface of the second drainage chamber is an inclined surface whose height gradually decreases from the inside to the outside, and the third drainage hole is in contact with the lowest position of the inclined surface.
6. The high-efficiency drainage window frame profile structure according to claim 1, characterized in that, The window frame profile structure also includes a second sealant, which is applied to both ends of the drainage frame to seal the second drainage cavity.
7. The high-efficiency drainage window frame profile structure according to claim 1, characterized in that, The main frame includes a main outer frame profile, a main inner frame profile, and a first heat insulation strip. The first heat insulation strip connects the main outer frame profile and the main inner frame profile. The first drainage hole and the second drainage hole are both provided on the main outer frame profile.
8. The high-efficiency drainage window frame profile structure according to claim 7, characterized in that, The first drainage hole is an inclined drainage hole, one side of which is connected to the inner wall of the main outer frame profile, and the other side of which is connected to the horizontal plane where the first heat insulation strip is located.
9. The high-efficiency drainage window frame profile structure according to claim 1, characterized in that, The drainage frame includes an outer drainage frame profile, an inner drainage frame profile, and a second heat insulation strip. The second heat insulation strip is connected between the outer drainage frame profile and the inner drainage frame profile. The third drainage hole is located on the outer drainage frame profile.
10. A door or window, characterized in that, It includes a window frame and a window sash, wherein the window frame is provided with a window frame profile structure for efficient drainage as described in any one of claims 1-9.