Door and window drainage cover

By designing a "7"-shaped drainage channel for the drainage rack and outer cover, the rainwater drainage path is changed, solving the problem that the door and window drainage covers cannot drain normally in bad weather, and realizing efficient rainwater drainage and mosquito prevention functions.

CN223739267UActive Publication Date: 2025-12-30曾德高
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Patent Information

Application Number
CN202520069782.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-13
Publication Date
2025-12-30
Estimated Expiration
2035-01-13

AI Technical Summary

Technical Problem

Existing window and door drainage covers cannot be opened properly in severe weather, causing water to accumulate inside the window frame, especially in southern regions where prolonged rainy weather can easily lead to increased water accumulation.

Method used

Design a door and window drainage cover, including a drainage rack and an outer cover. The drainage rack has multiple drainage channels in the shape of "7" on the outside. The channels have a first water guide plate and a second water guide plate to change the rainwater discharge path and discharge rainwater by high-level downward discharge. Drainage holes are set at the bottom of the outer cover.

Benefits of technology

It ensures that rainwater can drain smoothly in bad weather, prevents water accumulation in the window frame, and keeps mosquitoes out. It has a simple structure, low cost, and good corrosion resistance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223739267U_ABST
    Figure CN223739267U_ABST
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Abstract

The utility model relates to the technical field of door and window accessories, in particular to a door and window drainage cover which comprises a drainage frame arranged at a drainage opening in a buckled mode, an outer cover is arranged on the outer side of the drainage frame in a sleeved mode, drainage holes are formed in the bottom of the outer cover in an arrayed mode, and a plurality of 7-shaped drainage channels are arranged on the drainage frame in an arrayed mode. The two side walls of the drainage channel are provided with a first water guide piece and a second water guide piece respectively, the second water guide piece and the first water guide piece are arranged in a staggered mode in the drainage direction of the drainage channel, a drainage frame is additionally arranged at the drainage opening, an outer cover is arranged outside the drainage frame, meanwhile, the drainage channel is shaped like the Arabic numeral seven, and rainwater in the window frame flows into the drainage channel through a bevel part. The rainwater drainage path is changed, a high-position downward drainage mode is used for replacing an existing direct drainage mode, rainwater is finally drained through the drainage hole in the bottom of the outer cover, smooth drainage of the rainwater can be guaranteed even in severe weather, and therefore accumulated water of the window frame is prevented from being increased.
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Description

Technical Field

[0001] This utility model relates to the technical field of door and window accessories, and in particular to a door and window drainage cover. Background Technology

[0002] Currently, to prevent water accumulation inside window and door frames, drainage holes are installed on the exterior of the window frame to connect the interior space of the window frame with the outside. However, these drainage holes are exposed, and in severe weather, rainwater can backflow through them. Therefore, modern window frames are equipped with drainage covers in front of the drainage holes. Referring to the utility model patent CN218206493U, "A Cover for a Concealed Drainage Structure in a Window," it is known that by installing a drainage cover outside the drainage hole, the cover has a rotating opening mechanism. Strong winds are unlikely to blow the cover open from the front, and the water inside the window frame pushes it open to drain the water. This not only prevents rainwater backflow during windy and rainy weather but also prevents insects from entering. However, current drainage covers still have shortcomings. For example, in southern regions, summer rain can last for several days. If severe weather lasts too long, the pressure exerted by strong winds on the cover is greater than the pushing force of the water, making it impossible for the cover to open properly. This prevents rainwater from draining from the window frame in time, easily leading to an increase in water accumulation inside the window frame. Utility Model Content

[0003] The present invention provides a door and window drainage cover to ensure normal drainage.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a door and window drainage cover, including a drainage rack with a snap-fit ​​mechanism installed at the drainage outlet, an outer cover fitted on the outside of the drainage rack, drainage holes arranged at the bottom of the outer cover, and multiple drainage channels arranged in a figure-7 shape on the drainage rack. A first water guide plate and a second water guide plate are respectively provided on the two side walls of the drainage channels, and the second water guide plate and the first water guide plate are staggered according to the drainage direction of the drainage channel.

[0005] Furthermore, the drainage rack is provided with multiple partitions arranged in a row, and drainage channels are formed between adjacent partitions. The partitions at both ends of the drainage rack are provided with snap-fit ​​parts.

[0006] Furthermore, the drainage channel includes a horizontal section and a vertical section, with both the first and second water guide vanes located within the horizontal section.

[0007] Furthermore, the first water guide plate is disposed at the inlet end of one side wall of the drainage channel, and the second water guide plate is disposed in the middle of the other side wall of the drainage channel. Both the first water guide plate and the second water guide plate are inclined towards the outside.

[0008] Furthermore, the side of the first and second water guide plates facing indoors is an arc surface.

[0009] Furthermore, the drain hole is located at the outlet of the drain channel.

[0010] Furthermore, the outer cover is made of stainless steel.

[0011] Compared with the prior art, the beneficial effects of this utility model are: a drainage rack is added to the drainage outlet, and an outer cover is installed outside the drainage rack. At the same time, the drainage channel is shaped like a "7" with a bend. Rainwater inside the window frame passes through the bend, changing the path of rainwater discharge. The high-level downward drainage method replaces the existing straight drainage method, and finally discharges through the drainage hole at the bottom of the outer cover. Even in severe weather, it can ensure the smooth discharge of rainwater, thereby preventing the accumulation of water in the window frame. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present invention.

[0013] Figure 2 This is an exploded view of the present invention.

[0014] Figure 3 This is a schematic diagram showing the disassembled parts of this utility model.

[0015] Figure 4 This is a perspective view of the drainage rack in this utility model.

[0016] Figure 5 This is a top view of the drainage rack in this utility model.

[0017] In the diagram: 1. Drainage rack, 2. Outer cover, 10. Drainage channel, 11. First water guide plate, 12. Second water guide plate, 13. Buckle, 20. Drainage hole, 101. Drain outlet, 300. Detailed Implementation

[0018] 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.

[0019] As attached Figure 1-5As shown, this utility model discloses a door and window drainage cover, including a drainage frame 1 with a snap-fit ​​mechanism installed at the drainage outlet 300. An outer cover 2 is fitted over the drainage frame 1, and the outer cover 2 and the drainage frame 1 are fixedly connected, possibly by adhesive bonding. Drainage holes 20 are arranged at the bottom of the outer cover 2. The drainage frame 1 has multiple drainage channels 10 arranged in a "7" shape. First water guide plates 11 and second water guide plates 12 are respectively provided on the side walls of each drainage channel 10. Figure 4 and 5 The second water guide plate 12 and the first water guide plate 11 are staggered according to the drainage direction of the drainage channel 10.

[0020] This utility model discloses a door and window drainage cover. A drainage rack 1 is added to the drainage outlet 300, and an outer cover 2 is set outside the drainage rack 1. At the same time, the drainage channel 10 is shaped like a "7" and has a bend. Rainwater inside the window frame passes through the bend, changing the path of rainwater discharge. It uses a high-level downward drainage method to replace the existing direct drainage method. Finally, it is discharged through the drainage hole 20 at the bottom of the outer cover 2. Even in bad weather, it can ensure the smooth discharge of rainwater, thereby preventing the accumulation of water in the window frame. In addition, a first water guide plate 11 and a second water guide plate 12 are set in the drainage channel 10 to block mosquitoes from entering.

[0021] In this embodiment, the drainage rack 1 is provided with multiple partitions 101, and a drainage channel 10 is formed between adjacent partitions 101. The partitions 101 at both ends of the drainage rack 1 are provided with snap-fit ​​parts 13, which are used to snap-fit ​​the two sides of the drain outlet 300 for easy installation and use. It should be noted that the partitions 101 are also in the shape of a 7, and two 7-shaped partitions 101 are arranged alternately to form a 7-shaped drainage channel 10.

[0022] In this embodiment, the drainage channel 10 includes a horizontal section and a vertical section. The first water guide plate 11 and the second water guide plate 12 are both disposed within the horizontal section. The horizontal and vertical sections are arranged sequentially from front to back according to the drainage direction, with the vertical section facing outwards. Based on this, the first water guide plate 11 is disposed at the inlet end of one side wall of the drainage channel 10, and the second water guide plate 12 is disposed in the middle of the other side wall of the drainage channel 10. See [reference needed] for details. Figure 3-5The first water guide 11 is located at the end of one side wall of the horizontal section, and the second water guide 12 is located in the middle of the other side wall of the horizontal section. Both the first water guide 11 and the second water guide 12 are inclined outwards and do not contact each other. One side of the first water guide 11 is connected to the side wall of the drainage channel 10, and the other side faces the indoor surface of the second water guide 12, which facilitates the guidance and drainage of rainwater. In addition, the indoor-facing side of the first water guide 11 and the second water guide 12 is an arc surface, which is more conducive to the flow of rainwater. Moreover, the first water guide 11 and the second water guide 12 can also increase wind resistance and add an extra layer of protection.

[0023] In this embodiment, the drainage hole 20 is located at the outlet of the drainage channel 10, so that rainwater flows along the drainage channel 10 to the corresponding drainage hole 20 for discharge, which is conducive to the discharge of rainwater.

[0024] In this embodiment, the outer cover 2 is made of stainless steel. The outer cover 2 is located outside the window frame and needs to be exposed to the outside for a long time. The stainless steel outer cover 2 has the characteristics of corrosion resistance. The drainage rack 1 can be made of plastic injection molding, which saves costs and facilitates production.

[0025] Combining the existing installation structure, the drainage rack 1 is set on the drain outlet 300 of the window frame using the snap-fit ​​part 13. The outer cover 2 and the drainage rack 1 are connected before being installed on the window frame. When the drainage rack 1 is installed on the window frame, the indoor side of the drainage channel 10 is blocked by the window frame, and the outdoor side is blocked by the outer cover 2, thus forming a "7"-shaped channel structure with one inlet and one outlet. The inlet corresponds to the indoor end of the horizontal section, and the outlet corresponds to the vertical section and is close to the end of the drain hole 20. This can guide rainwater to flow down the outdoor surface of the window frame. At the same time, multiple drainage channels 10 cooperate with multiple drain holes 20 to divert rainwater, prevent rainwater from flowing down in streams, and prevent rainwater from falling on pedestrians from high altitude. Rainwater entering the window frame is discharged into the drainage channel 10 through the drain outlet 300. The rainwater first passes through the horizontal section, then passes through the first water guide plate 11 and the second water guide plate 12 in sequence, and is then guided into the vertical section through the first water guide plate 11 and the second water guide plate 12, and finally discharged at the drain hole 20.

[0026] The above embodiments are preferred embodiments of this utility model. All structures similar to this utility model and equivalent changes thereof should fall within the protection scope of this utility model.

Claims

1. A door and window drain cover characterized by: The drain frame is provided with a buckle at the drain port, an outer cover is sleeved outside the drain frame, a drain hole is arranged at the bottom of the outer cover, a plurality of "7" shaped drain channels are arranged in the drain frame, first and second water guide pieces are arranged on the two side walls of the drain channel respectively, and the second water guide piece is arranged staggered with the first water guide piece according to the water flowing direction of the drain channel.

2. A door and window drainage cover according to claim 1, characterized in that: A plurality of partition plates are arranged in the drain frame, the adjacent partition plates form a drain channel, and the partition plates at both ends of the drain frame are provided with buckle parts.

3. A door and window drainage cover according to claim 1, characterized in that: The drain channel comprises a horizontal section and a vertical section, and the first and second water guide pieces are arranged in the horizontal section.

4. A door and window drainage cover according to claim 3, wherein: The first water guide piece is arranged at the entrance end of one side wall of the drain channel, the second water guide piece is arranged at the middle part of the other side wall of the drain channel, and the first and second water guide pieces are inclined to the outside.

5. A door and window drainage cover according to claim 4, wherein: The first and second water guide pieces are arc surfaces facing the indoor.

6. A door and window drain cover according to claim 1, characterized in that: The drain hole is located at the outlet of the drain channel.

7. The door and window drain cover according to claim 1, wherein: The outer cover is made of stainless steel.

Citation Information

Patent Citations

  • Surface cover for hidden drainage structure of window

    CN218206493U