A window sill waterproofing building structure
By designing drainage and protection mechanisms, the problem of poor waterproofing of the windowsill was solved, achieving effective drainage of rainwater and enhanced fixation of the bracket, thus improving the waterproofing performance and decorative effect of the windowsill.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 韩平
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-21
AI Technical Summary
In existing waterproof building structures for window sills, rainwater can easily seep in through the gaps between the window frame and the window sill, and the base is easily corroded, resulting in poor waterproofing performance.
A waterproof window sill structure including a drainage mechanism and a protective mechanism was designed. The drainage mechanism effectively guides and discharges rainwater through a bracket, filter screen, guide channel and guide plate. The protective mechanism enhances the fixation and decoration of the bracket through a protective plate and fixing bolts.
It effectively prevents rainwater from seeping into the window sill, reduces the entry of external debris, strengthens the fixation of the bracket, and reduces the erosion of the bottom wall of the window sill and the fixing bolts by rainwater.
Smart Images

Figure CN224532585U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of window sill construction, and in particular to a waterproof window sill construction structure. Background Technology
[0002] The windowsill is the part between the exterior wall of a building and the window. The windowsill is usually located at the bottom of the window and is easily intruded by rainwater. If the windowsill is not waterproofed, rainwater may seep into the interior of the windowsill structure and then enter the room, causing the walls, floors and interior to become damp. This solution specifically involves a waterproof building structure for windowsills.
[0003] In existing waterproof building structures for window sills, rainwater can easily seep in through the gaps between the window frame and the window sill, soaking the internal structure of the window sill and resulting in poor rainwater blocking effect. It is also difficult for rainwater to drain. The bracket is fixed by bolts and exposed to the outside, making it susceptible to corrosion and reducing its protection, which has a certain impact on actual use. Utility Model Content
[0004] The main objective of this invention is to provide a waterproof building structure for window sills, which can effectively solve the technical problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A waterproof building structure for a window sill includes a window frame for installation within a wall. A drainage mechanism is installed at the bottom of the window frame, and a protective mechanism is installed around the drainage mechanism. The drainage mechanism includes a bracket installed at the bottom of the window frame. A frame groove is formed at the top of the bracket, and a water-proof groove is formed at the front end of the bottom of the frame groove. A filter screen is installed at the top of the water-proof groove. A guide groove is formed inside the bracket and at the middle and both ends of the bottom of the water-proof groove. A drain outlet is formed at the front of each guide groove, and a guide plate is installed at the bottom front of the bracket.
[0007] As a further embodiment of this utility model, the bottom of the window frame is located inside the frame groove and is snap-fitted in place. The rear part of the mounting bracket is inside the wall, and the front part of the mounting bracket is outside the wall. The frame groove is interconnected with the water-proof groove through a filter screen.
[0008] As a further embodiment of this utility model, the rear end of the guide channel is inclined, and the front end of the guide channel is vertical.
[0009] As a further embodiment of this utility model, the three guide channels and the water-blocking channel are interconnected, and the guide plate is located at the bottom front of the card seat and is inclined.
[0010] As a further embodiment of this utility model, the protective mechanism includes two protective plates, which are respectively installed on the front and rear ends of the top of the card seat. Several card rails are installed on the inner side of each of the two protective plates. Several card slots are opened on the front and rear parts of the card seat. Four fixing bolts are connected and installed through the front and rear ends of the top of the card seat. The top of the protective plate is filled with sealant between it and the window frame.
[0011] As a further embodiment of this utility model, the protective plates are located on the top of the card holder and are arranged in a matching manner, with the two protective plates arranged symmetrically between each other.
[0012] As a further embodiment of this utility model, the rail is located in the slot and is snapped in place, and the fixing bolt passes through the interior of the bracket and the wall and is threaded in place.
[0013] The beneficial effects of this utility model are as follows:
[0014] By setting up a drainage mechanism, rainwater seeps in through the gap between the window frame and the frame groove and enters the water-proof groove. The protection of the bracket can effectively prevent rainwater from seeping into the windowsill. By using a filter screen, the entry of external debris is reduced when installing the window frame. The rainwater that seeps in is collected and flows through the guide channel to the drain outlet for discharge. By using a guide plate, the distance between the dripping rainwater and the wall is increased, reducing the scouring of the wall surface at the bottom of the windowsill by rainwater and reducing the traces left by rainwater.
[0015] By setting up a protective mechanism, the bracket is secured to the windowsill, and the fixing bolt runs through the inside of the bracket, enhancing its stability. The protective plate is fixed to the surface of the bracket by the engagement of the rail and the slot, covering the fixing bolt, decorating the windowsill surface, improving the overall protection of the bracket, and reducing the corrosion of the fixing bolt. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a waterproof window sill building structure according to the present invention;
[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the drainage mechanism in a waterproof building structure for a window sill according to the present invention.
[0018] Figure 3 This is a schematic diagram of the internal structure of the protective mechanism in a waterproof building structure for a window sill according to the present invention;
[0019] Figure 4 This is a cross-sectional side view of a waterproof window sill building structure according to the present invention.
[0020] In the diagram: 1. Window frame; 2. Drainage mechanism; 3. Protective mechanism; 4. Mounting seat; 5. Frame groove; 6. Waterproof groove; 7. Filter screen; 8. Drainage channel; 9. Drain outlet; 10. Drainage plate; 11. Protective plate; 12. Mounting rail; 13. Mounting groove; 14. Fixing bolt; 15. Sealant. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] like Figure 1-4 As shown, a waterproof building structure for a window sill includes a window frame 1, which is installed in the wall. A drainage mechanism 2 is installed at the bottom of the window frame 1, and a protective mechanism 3 is installed around the drainage mechanism 2. The drainage mechanism 2 includes a bracket 4, which is installed at the bottom of the window frame 1. A frame groove 5 is opened at the top of the bracket 4, and a water-proof groove 6 is opened at the bottom near the front end of the frame groove 5. A filter screen 7 is installed at the top of the water-proof groove 6. A guide groove 8 is opened inside the bracket 4 and at the middle and both ends of the bottom of the water-proof groove 6. A drain outlet 9 is opened at the front of each guide groove 8, and a guide plate 10 is installed at the bottom front end of the bracket 4.
[0023] In this embodiment, the bottom of the window frame 1 is located inside the frame groove 5 and is snapped in place. The rear part of the bracket 4 is the inner side of the wall, and the front part of the bracket 4 is the outer side of the wall. The frame groove 5 is connected to the water-proof groove 6 through the filter screen 7. The window frame 1 is snapped into the frame groove 5 for fixation, and external water flows into the water-proof groove 6 through the gap in the frame groove 5 for isolation.
[0024] In this embodiment, the rear end of the guide channel 8 is inclined and the front end of the guide channel 8 is vertical. Water entering the water-blocking tank 6 flows through the guide channel 8, reducing water accumulation.
[0025] In this embodiment, the three guide channels 8 and the water-blocking channel 6 are interconnected. The guide plate 10 is located at the bottom front of the card seat 4 and is inclined. Water is discharged through the drain outlet 9. The guide plate 10 ensures that the water discharged from the inside is kept at a certain distance from the wall as it drips downward, thereby reducing water scouring.
[0026] In this embodiment, the protective mechanism 3 includes two protective plates 11, which are respectively installed on the front and rear ends of the top of the card holder 4. Several card rails 12 are installed on the inner side of each of the two protective plates 11. Several card slots 13 are opened on the front and rear parts of the card holder 4. Four fixing bolts 14 are connected and installed through the front and rear ends of the top of the card holder 4. The top of the protective plate 11 and the window frame 1 are filled with sealant 15. The protective plate 11 protects the surface of the card holder 4 while decorating it, and reduces the corrosion of the fixing bolts 14.
[0027] In this embodiment, the protective plates 11 are located on the top of the card holder 4 and are arranged to match each other. The two protective plates 11 are arranged symmetrically between each other. The protective plates 11 are installed on the surface of the card holder 4 through the card rail 12 and the card slot 13, thereby improving the overall protection.
[0028] In this embodiment, the locking rail 12 is located in the locking groove 13 and is snapped in place. The fixing bolt 14 passes through the interior of the mounting base 4 and the wall and is threaded in place. The mounting base 4 and the wall are fixed together by the connection of the fixing bolt 14, which reduces the seepage of rainwater into the windowsill.
[0029] It should be noted that this utility model is a waterproof building structure for a window sill. In use, the window frame 1 is inserted into the frame groove 5 of the bracket 4, and the bracket 4 protects the window sill. During installation, the bracket 4 is on the window sill, and the bracket 4 is connected and fixed to the wall by the fixing bolt 14. Then, two protective plates 11 are installed at the front and rear ends of the top of the bracket 4. The protective plates 11 are fixed by the engagement of the rail 12 and the groove 13, and the fixing bolt 14 is covered. The bottom of the window frame 1 is inserted into the frame groove 5 and fixed. When rainwater drips onto the surface of the protective plate 11 on the outside of the wall, the rainwater seeps in through the gap between the window frame 1 and the frame groove 5 and drips into the waterproof groove 6. The water flows through the guide groove 8 to the drain outlet 9 for discharge, and the guide plate 10 keeps the water flow away from the wall, reducing the scouring of the bottom wall surface of the window sill by rainwater.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A waterproof building structure for a window sill, comprising a window frame (1), the window frame (1) being installed in a wall, a drainage mechanism (2) being installed at the bottom of the window frame (1), and a protective mechanism (3) being installed around the drainage mechanism (2), characterized in that: The drainage mechanism (2) includes a bracket (4), which is installed at the bottom of the window frame (1). A frame groove (5) is provided at the top of the bracket (4). A water-blocking groove (6) is provided at the bottom near the front end of the frame groove (5). A filter screen (7) is installed at the top of the water-blocking groove (6). A guide groove (8) is provided inside the bracket (4) and at the middle and both ends of the bottom of the water-blocking groove (6). A drain outlet (9) is provided at the front of each guide groove (8). A guide plate (10) is installed at the bottom of the front of the bracket (4).
2. The waterproof building structure for a window sill according to claim 1, characterized in that: The bottom of the window frame (1) is located inside the frame groove (5) and is snapped together. The rear part of the bracket (4) is inside the wall, and the front part of the bracket (4) is outside the wall. The frame groove (5) is connected to the water-proof groove (6) through the filter screen (7).
3. The waterproof building structure for a window sill according to claim 1, characterized in that: The rear end of the guide channel (8) is inclined, and the front end of the guide channel (8) is vertical.
4. The waterproof building structure for a window sill according to claim 1, characterized in that: The three flow guide channels (8) and the water isolation channel (6) are interconnected, and the flow guide plate (10) is located at the bottom front of the card seat (4) and is inclined.
5. A waterproof building structure for a window sill according to claim 1, characterized in that: The protective mechanism (3) includes two protective plates (11), which are respectively installed at the front and rear ends of the top of the card seat (4). Several card rails (12) are installed on the inner side of the two protective plates (11). Several card slots (13) are opened at the front and rear parts of the card seat (4). Four fixing bolts (14) are connected and installed through the front and rear ends of the top of the card seat (4). The top of the protective plate (11) and the window frame (1) are filled with sealant (15).
6. A waterproof building structure for a window sill according to claim 5, characterized in that: The protective plates (11) are located on the top of the card holder (4) and are matched with each other, and the two protective plates (11) are arranged symmetrically between each other.
7. A waterproof building structure for a window sill according to claim 5, characterized in that: The rail (12) is located in the slot (13) and is snapped in place. The fixing bolt (14) passes through the slot (4) and the interior of the wall and is threaded in place.