Invisible drain hole cover for doors and windows

By embedding drainage components and anti-backflow components in door and window profiles and adopting a downward drainage method, the problems of easy clogging and backflow of drain holes are solved, rapid drainage and backflow prevention are achieved, and the aesthetics and service life of doors and windows are improved.

CN223423890UActive Publication Date: 2025-10-10WENZHOU PINLI INTELLIGENT CURTAIN WALL DOOR & WINDOW CO LTD
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Patent Information

Application Number
CN202422833129.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-10-10
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

In the existing door and window drainage system, the drain holes are easily clogged, the accumulated water cannot be completely discharged, and it is easy to backflow in strong winds, affecting the appearance and service life.

Method used

An invisible drain hole cover is designed. By embedding drainage components and anti-backflow components in door and window profiles, a downward drainage method is adopted. The linkage mechanism of the water collection plate and the striking plate is utilized, combined with the opening and closing of the arc-shaped closing plate, to achieve rapid drainage and prevent backflow.

Benefits of technology

It improves drainage efficiency, prevents rainwater accumulation, extends the service life of doors and windows, enhances the aesthetics and structural safety of doors and windows, and avoids corrosion and damage caused by accumulated water.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of door and window accessories, in particular to an invisible weep hole cover for doors and windows, which comprises a door and window profile, a plurality of communicating grooves are arranged at the top of the door and window profile, and each communicating groove is provided with a drainage component for assisting the communicating groove in drainage. A drainage groove used for draining water is further formed in the side, close to the communicating grooves, of the door and window profile and communicates with the drainage assemblies in the communicating grooves. According to the device, the drainage assembly is ingeniously embedded into the communicating groove of the door and window profile, a drainage system is completely hidden, through the design, damage of a traditional exposed drainage hole to the appearance of the door and window is avoided, the overall line of the door and window is smooth, and the door and window is more attractive and elegant; in combination with a linkage mechanism of the water collecting plate and the beating plate, the drainage hole cover can quickly guide rainwater into the drainage cylinder, and the arc-shaped sealing plate is driven to be opened and closed through power of water flow.
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Description

TECHNICAL FIELD

[0001] The utility model relates to door and window accessory technical field, concretely is a door and window is with invisible drain hole cover. BACKGROUND

[0002] In the door and window system, even if the sealant or the rubber strip is installed between the aluminum profile and the glass, there is still a small gap, when it rains, the rainwater on the whole glass area flows downward to the gap, and the rainwater penetrates into the glass groove along the small gap, so the bottom of the glass groove needs to be provided with a drain hole to drain the accumulated water as soon as possible, so as to avoid affecting the service life of the door and window.

[0003] The conventional drainage design currently punches a drain hole at an outer visible surface, and the drain hole is visible, which is poor in appearance, and when strong convection weather occurs, rainwater and the like is easy to backflow from the drain hole, thereby causing indoor water ingress or wall body immersion, and most of the drainage is horizontal, which is poor in drainage effect.

[0004] Or like the "CN215213208U" provided in a door and window is with invisible drainage cover, the device is through the cooperation of the water inlet hole, the drain hole, the water guide cavity, the windproof guide cavity and the water baffle, a fluid flow channel that can be opened and closed is formed in the door and window frame, so that the water flow can flow from the water inlet hole to the drain hole and cannot backflow under the wind, and since the whole drainage cover is hidden in the door and window frame, it does not affect the other structures and appearance of the door and window, the drainage cover provided by the utility model has the advantages of high drainage efficiency, anti-backflow, reasonable structure and convenient installation.

[0005] However, the above-mentioned device still has the following problems in the implementation process:

[0006] The drain hole of the device is arranged on the outer side, and when strong wind and the like occurs during use, sundries is easy to enter the water guide cavity through the drain hole, causing the drain hole or the water guide cavity to be blocked, so that normal drainage cannot be performed, and the drainage mode of the device is horizontal drainage, so when the water flow enters the water guide cavity, it is easy to remain in the water guide cavity, causing the accumulated water to be unable to be completely drained. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing a door and window is with invisible drain hole cover to solve the problems in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0009] A door and window is with invisible drain hole cover, including door and window profile, the top of door and window profile is provided with a plurality of communication grooves, each communication groove is installed with drainage assembly that assists communication groove drainage, the side of door and window profile close to communication groove is also provided with drainage groove for drainage, drainage groove is linked with drainage assembly in a plurality of communication grooves,

[0010] Each of the drainage components is also provided with an anti-backflow component for preventing backflow.

[0011] Preferably: the drainage assembly includes a drainage cylinder, which is clamped in an adjacent connecting groove. A connecting plate is installed on the top of the drainage cylinder, and the top of the connecting plate is kept level with the bottom of the inner wall of the door and window profile. A plurality of connecting holes are opened on the connecting plate, and the connecting holes are connected to the drainage cylinder.

[0012] Preferably, the water outlet end of the drainage cylinder is hinged with a bottom plate, and the top of the bottom plate is in contact with the bottom of the drainage cylinder, and the rotating end of the bottom plate is provided with a torsion spring.

[0013] Preferably, a water collecting plate is further provided at the water inlet end of the drainage cylinder, and the water collecting plate is installed inside the drainage cylinder, and the water collecting plate is located below the connecting plate.

[0014] Preferably: the backflow prevention component includes two fixed cylinders, the two fixed cylinders are respectively installed on both sides of the inner wall of the drainage cylinder, and the two fixed cylinders are located below the water collecting plate, a rotating cylinder is provided between the two fixed cylinders, the two ends of the rotating cylinder are respectively rotatably connected to the two fixed cylinders, and a plurality of striking plates are evenly installed on the arc surface of the rotating cylinder.

[0015] Preferably, the anti-backflow assembly includes two limit blocks, which are respectively installed on both sides of the inner wall of the drainage cylinder, and the two limit blocks are respectively located below the two fixed cylinders, and the length of the two limit blocks is consistent with the length of the inner wall of the drainage cylinder;

[0016] An arc-shaped closing plate is further provided between the two limit blocks. An inclined surface is provided on one side of the two limit blocks close to the arc-shaped closing plate. Both sides of the arc-shaped closing plate are respectively in contact with the inclined surfaces of the two limit blocks close to the top.

[0017] Preferably, a fixed plate is installed between the two limit blocks, a sliding rod is installed on the top of the arc-shaped closing plate, the sliding rod is slidably connected to the fixed plate, and the top of the sliding rod passes through the fixed plate and extends to the bottom of the rotating cylinder, and an abutment head is installed on the extended end of the sliding rod, and the abutment head contacts the adjacent striking plate;

[0018] A pressure spring is sleeved on the slide bar, one end of the pressure spring is fixed to the fixing plate, and the other end is fixed to the abutment head.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This utility model achieves a completely invisible drainage system by cleverly embedding the drainage components into the connecting grooves of the door and window profiles. This design not only avoids the damage to the appearance of doors and windows caused by traditional exposed drainage holes, but also makes the overall lines of doors and windows smoother, more beautiful and generous, effectively improving the overall quality and grade of the building.

[0021] 2. The utility model adopts a downward drainage method, combined with the linkage mechanism of the water collection plate and the striking plate. The drain hole cover can quickly guide rainwater into the drainage barrel and drive the opening and closing of the arc-shaped closing plate through the power of the water flow. This innovative design significantly enhances the drainage efficiency, effectively prevents the accumulation of rainwater on doors and windows, reduces the risk of corrosion and damage to doors and windows caused by long-term water accumulation, and extends the service life of doors and windows.

[0022] 3. When the utility model is in use, after the water flows through and is discharged, the arc-shaped closing plate automatically resets under the action of the pressure spring, tightly closing the upper part of the drainage cylinder, effectively preventing the undischarged water below from flowing back, and further ensuring the dryness and safety of the internal structure of doors and windows. This design not only improves the reliability of the drainage system, but also brings a more secure use experience to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the door and window profile in the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the drainage component in the present utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the drainage tube in the present utility model;

[0026] Figure 4 This is a schematic structural diagram of the anti-backflow component in the utility model.

[0027] In the figure: 1. Door and window profile; 11. Drainage trough; 12. Connecting groove; 2. Drainage assembly; 21. Drainage cylinder; 22. Connecting plate; 23. Connecting hole; 24. Bottom plate; 25. Water collecting plate; 3. Anti-backflow assembly; 31. Fixed cylinder; 32. Rotating cylinder; 33. Strike plate; 34. Limit block; 35. Arc-shaped closing plate; 36. Sliding rod; 37. Abutment; 38. Pressure spring; 39. Fixed plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] For example 1, please refer to Figure 1-4 , an invisible drain hole cover for doors and windows, including a door and window profile 1, a plurality of connecting grooves 12 are opened on the top of the door and window profile 1, each connecting groove 12 is installed with a drainage component 2 for assisting the connecting groove 12 to drain water, and a drainage groove 11 for drainage is opened on the side of the door and window profile 1 close to the connecting groove 12. The drainage groove 11 is connected to the drainage components 2 in the plurality of connecting grooves 12, and each drainage component 2 is also provided with an anti-backflow component 3 to prevent backflow. The drainage component 2 includes a drainage cylinder 21, which is clamped in the adjacent connecting groove 12 to drain water. A connecting plate 22 is installed on the top of the cylinder 21. The top of the connecting plate 22 is kept level with the bottom of the inner wall of the door and window profile 1. A plurality of connecting holes 23 are opened on the connecting plate 22, and the connecting holes 23 are connected to the drain cylinder 21. The water outlet end of the drain cylinder 21 is hinged with a bottom plate 24, and the top of the bottom plate 24 is in contact with the bottom of the drain cylinder 21. The rotating end of the bottom plate 24 is provided with a torsion spring. The water inlet end of the drain cylinder 21 is also provided with a water collecting plate 25. The water collecting plate 25 is installed inside the drain cylinder 21 and is located below the connecting plate 22.

[0030] During installation, first install the drainage component 2 in the connecting groove 12 pre-opened on the door and window profile 1, and make the connecting plate 22 at the top of the drainage tube 21 level with the top of the connecting groove 12. When it rains, rainwater flows into the drainage tube 21 along the connecting hole 23, and falls on the anti-backflow component 3 through the water collecting plate 25 provided in the drainage tube 21, and continues to fall through the anti-backflow component 3. The impact force of the water flow drives the bottom plate 24 to flip downward and open, so that the water flows out through the bottom plate 24 and is discharged through the drainage groove 11. When the water is discharged, the bottom plate 24 is reset under the action of the torsion spring, and contacts the bottom of the drainage tube 21 again, closing the drainage tube 21 to prevent the discharged water from flowing back.

[0031] For example 2, please refer to Figure 1-4The anti-backflow assembly 3 comprises two fixed cylinders 31 mounted on the two sides of the inner wall of the drain cylinder 21 and located below the water collecting plate 25, a rotating cylinder 32 arranged between the two fixed cylinders 31 and rotatably connected to the two fixed cylinders 31 at the two ends, a plurality of beating plates 33 uniformly mounted on the arc surface of the rotating cylinder 32, two limiting blocks 34 mounted on the two sides of the inner wall of the drain cylinder 21 and located below the two fixed cylinders 31, the lengths of the two limiting blocks 34 being consistent with the length of the inner wall of the drain cylinder 21, an arc-shaped closing plate 35 arranged between the two limiting blocks 34, the side of each limiting block 34 close to the arc-shaped closing plate 35 being provided with an inclined surface, the two sides of the arc-shaped closing plate 35 being in contact with the inclined surfaces of the two limiting blocks 34 close to the top, a fixed plate 39 mounted between the two limiting blocks 34, a slide rod 36 mounted on the top of the arc-shaped closing plate 35 and slidably connected to the fixed plate 39, the top of the slide rod 36 penetrating through the fixed plate 39 and extending below the rotating cylinder 32, an abutting head 37 mounted on the extending end of the slide rod 36 and in contact with the adjacent beating plate 33, and a pressure spring 38 sleeved on the slide rod 36 and fixed at one end to the fixed plate 39 and at the other end to the abutting head 37.

[0032] In use, when water flows into the drain cylinder 21 through the water collecting plate 25, it first falls on the beating plates 33 through the openings at the bottom of the water collecting plate 25 and pushes the beating plates 33 to rotate. When the beating plates 33 rotate, they continuously push and squeeze the abutting head 37, so that the abutting head 37 drives the slide rod 36 to move downward. Under the limiting of the fixed plate 39, the slide rod 36 drives the arc-shaped closing plate 35 to slide downward along the inclined edges of the two limiting blocks 34. When the arc-shaped closing plate 35 slides downward, because the width below the inclined surface is greater than the width above the inclined surface, the two sides of the arc-shaped closing plate 35 are no longer in contact with the inclined surfaces of the limiting blocks 34. At this time, water can flow out through the gap between the arc-shaped closing plate 35 and the limiting blocks 34.

[0033] At the same time, when water falls on the arc-shaped closing plate 35, the impact force of the water drives the arc-shaped closing plate 35 to move downward, so that water can be smoothly drained.

[0034] When the water flows out, the beating plates 33 no longer rotate. The arc surface design of the arc-shaped closing plate 35 allows the water to flow out completely. Under the action of the elastic force of the pressure spring 38, the arc-shaped closing plate 35 moves upward along the fixed plate 39 until it abuts against the inclined surface of the arc-shaped closing plate 35 again, thereby closing the upper part of the drain cylinder 21 and preventing the water not yet drained from flowing backward.

[0035] Working Principle: During installation, first install the drainage assembly 2 in the pre-opened connecting groove 12 on the door and window profile 1, and make the connecting plate 22 at the top of the drainage tube 21 level with the top of the connecting groove 12. When it rains, rainwater flows into the drainage tube 21 through the connecting hole 23, and is concentrated by the water collecting plate 25 provided in the drainage tube 21 and falls onto the anti-backflow assembly 3.

[0036] Water flows through the opening at the bottom of the water collecting plate 25 and falls onto the striking plate 33, pushing the striking plate 33 to rotate. As the striking plate 33 rotates, it continuously pushes the abutment 37, causing the abutment 37 to drive the slide bar 36 to move downward. Under the limit of the fixed plate 39, the slide bar 36 drives the arc-shaped closing plate 35 to slide downward. When the arc-shaped closing plate 35 slides downward, the two sides of the arc-shaped closing plate 35 gradually lose contact with the two limit blocks 34. At this time, the water can flow out through the gap between the arc-shaped closing plate 35 and the limit blocks 34.

[0037] At the same time, when the water flows onto the arc-shaped closing plate 35, the impact force of the water flow will drive the arc-shaped closing plate 35 to move downward, so that the water can be discharged smoothly;

[0038] After the water has flowed out, the striking plate 33 stops rotating. The curved surface of the arc-shaped closing plate 35 allows the water to flow out completely. Under the action of the rebound force of the pressure spring 38, the arc-shaped closing plate 35 moves upward along the fixed plate 39 until it abuts against the inclined surface of the arc-shaped closing plate 35 again, sealing the upper part of the drain cylinder 21 and preventing the undischarged water from flowing back.

[0039] At the same time, by setting the connecting groove 12 in the inner wall of the door and window profile 1, the aesthetics of the door and window profile 1 is increased. At the same time, the downward drainage method enhances the drainage effect and prevents rainwater from accumulating in the drainage holes and causing erosion of doors and windows.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An invisible drain hole cover for doors and windows, comprising a door and window profile (1), characterized in that: The top of the door and window profile (1) is provided with a plurality of communication grooves (12), each of which is equipped with a drainage assembly (2) for assisting the communication groove (12) in draining water, and a drainage groove (11) for draining water is further provided on one side of the door and window profile (1) close to the communication groove (12), the drainage groove (11) being connected to the drainage assemblies (2) in the plurality of communication grooves (12); Each of the drainage components (2) is also provided with an anti-backflow component (3) for preventing backflow.

2. The invisible drain hole cover for doors and windows according to claim 1, characterized in that: The drainage assembly (2) includes a drainage cylinder (21), the drainage cylinder (21) is clamped in an adjacent communication groove (12), a connecting plate (22) is installed on the top of the drainage cylinder (21), the top of the connecting plate (22) is kept horizontal with the bottom of the inner wall of the door and window profile (1), a plurality of communication holes (23) are opened on the connecting plate (22), and the communication holes (23) are connected to the drainage cylinder (21).

3. The invisible drain hole cover for doors and windows according to claim 2, characterized in that: The water outlet end of the drainage cylinder (21) is hinged with a bottom plate (24), and the top of the bottom plate (24) is in contact with the bottom of the drainage cylinder (21). The rotating end of the bottom plate (24) is provided with a torsion spring.

4. The invisible drain hole cover for doors and windows according to claim 2, characterized in that: The water inlet end of the drainage cylinder (21) is further provided with a water collecting plate (25), which is installed inside the drainage cylinder (21) and is located below the connecting plate (22).

5. The invisible drain hole cover for doors and windows according to claim 1, characterized in that: The anti-backflow assembly (3) comprises two fixed cylinders (31), the two fixed cylinders (31) being respectively mounted on both sides of the inner wall of the drainage cylinder (21), and the two fixed cylinders (31) being located below the water collecting plate (25), a rotating cylinder (32) being arranged between the two fixed cylinders (31), the two ends of the rotating cylinder (32) being respectively rotatably connected to the two fixed cylinders (31), and a plurality of striking plates (33) being evenly mounted on the arc surface of the rotating cylinder (32).

6. The invisible drain hole cover for doors and windows according to claim 1, characterized in that: The anti-backflow assembly (3) comprises two limit blocks (34), the two limit blocks (34) are respectively installed on both sides of the inner wall of the drainage cylinder (21), and the two limit blocks (34) are respectively located below the two fixed cylinders (31), and the length of the two limit blocks (34) is consistent with the length of the inner wall of the drainage cylinder (21); An arc-shaped closing plate (35) is further provided between the two limit blocks (34), and an inclined surface is provided on one side of the two limit blocks (34) close to the arc-shaped closing plate (35), and both sides of the arc-shaped closing plate (35) are respectively in contact with the inclined surfaces close to the tops of the two limit blocks (34).

7. The invisible drain hole cover for doors and windows according to claim 6, characterized in that: A fixed plate (39) is further installed between the two limit blocks (34), a sliding rod (36) is installed on the top of the arc-shaped closing plate (35), the sliding rod (36) is slidably connected to the fixed plate (39), and the top of the sliding rod (36) passes through the fixed plate (39) and extends to the bottom of the rotating cylinder (32), and an abutment head (37) is installed on the extended end of the sliding rod (36), and the abutment head (37) contacts the adjacent striking plate (33); A pressure spring (38) is sleeved on the slide bar (36), one end of the pressure spring (38) is fixed to the fixing plate (39), and the other end is fixed to the abutment joint (37).

Citation Information

Patent Citations

  • Invisible drainage cover for doors and windows

    CN215213208U