Door and window drain hole cover

By installing filter and locking components in the drain hole covers of doors and windows, the problem of impurity blockage is solved, and the stability and protection performance are improved, ensuring that impurities in rainwater are intercepted and cleaned, and preventing flying insects or rainwater from entering the room.

CN224120164UActive Publication Date: 2026-04-14HUBEI SUYANG DOORS & WINDOWS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-12
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing door and window drain covers are prone to clogging due to impurities in the water, causing them to lose their protective performance and fail to effectively prevent flying insects or rainwater from entering the room.

Method used

A door and window drain hole cover is designed, which includes a cover body with an internal cavity and is equipped with a liquid inlet, a liquid outlet, a snap-fit ​​component, a movable baffle, a filter component, and a locking component. The filter component filters impurities and locks the connection to ensure that the filter component can be disassembled and cleaned.

Benefits of technology

It effectively intercepts impurities in rainwater, reduces the probability of blockage of the movable baffle, ensures stability during long-term use, and prevents flying insects or rainwater from entering the room.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a door and window drain hole cover which comprises a cover body with a cavity inside, a liquid inlet and a liquid outlet which are communicated with the cavity are respectively arranged on two opposite sides of the cover body, and the door and window drain hole cover further comprises a buckling component which is arranged in the cavity of the cover body, one end of the buckling component penetrates through the liquid inlet and extends out of the liquid inlet, and the buckling component is used for being fixedly connected with a door and window drain hole in a clamping mode. According to the utility model, the filtering assembly is arranged in the cover body, so that after the cover body is arranged at the door and window drainage hole through the buckling part, drained rainwater can be filtered by the filtering assembly and then is drained through the movable baffle, and as easy-to-block impurities carried in the rainwater are intercepted, the blocking probability of the movable baffle is reduced; meanwhile, the filtering assembly is in locking connection with the cover body through the locking assembly, so that a user can take out the filtering assembly from the cover body for cleaning by unlocking the locking assembly, the filtering assembly can still operate normally in the subsequent long-time use process, and the purpose of high use stability is achieved.
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Description

Technical Field

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

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] Although rubber strips are used to buffer and seal between the glass and aluminum frame of doors and windows, it is still difficult to completely avoid the existence of tiny gaps. In windy and rainy weather, these gaps can allow rainwater to seep into the interior of the doors and windows. To ensure that accumulated water can be drained in time, doors and windows must be equipped with drainage holes. Currently, drainage hole covers are generally installed at the drainage holes to prevent rainwater from flowing back in, prevent flying insects from entering the room through the drainage holes, and improve the appearance.

[0004] However, the movable cover of the drain hole cover in the existing technology has obvious shortcomings. It is easily blocked by impurities in the water, which affects the normal closing and causes the protective performance to fail. This allows flying insects or rainwater to enter the drain hole through the drain hole cover during subsequent use. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned shortcomings by providing a door and window drainage hole cover that achieves high stability in use.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a door and window drainage hole cover, comprising a cover body with an internal cavity, wherein an inlet and an outlet communicating with the cavity are respectively provided on opposite sides of the cover body, and further comprising:

[0007] The snap-fit ​​component is located inside the cavity of the cover, with one end passing through the liquid inlet and extending outside the liquid inlet, for snapping and fixing with the drain hole of the door or window;

[0008] A movable baffle is rotatably installed inside the liquid outlet of the cover to block the liquid outlet when not in a draining state;

[0009] The filter assembly is detachably installed in the cavity of the cover and located between the inlet and outlet, and is used to filter the liquid discharged from the inlet to the outlet.

[0010] A locking component, located on the filter assembly, is used to prevent the installed filter assembly from separating from the cover.

[0011] Furthermore, the filter assembly includes a hollow filter cartridge that is inserted into the cover body and can move along the length direction of the cover body. One end of the cover body along the length direction is provided with an installation hole for inserting the hollow filter cartridge into the cavity of the cover body, and the other end of the cover body along the length direction is provided with a slot for the corresponding end of the hollow filter cartridge to be inserted. The hollow filter cartridge is located below the liquid inlet, and the hollow filter cartridge is provided with an injection port for the liquid discharged from the liquid inlet to enter the hollow filter cartridge. The filter assembly also includes a plurality of sealing strips disposed in the cavity of the cover body and abutting against the hollow filter cartridge. The sealing strips are used to prevent the liquid discharged from the liquid inlet from being discharged from the gap between the hollow filter cartridge and the cover body.

[0012] Furthermore, the locking assembly includes an eccentric disc, which is rotatably mounted on one end of the corresponding mounting hole of the hollow filter cartridge via a torsion spring. The eccentric disc passes through the hollow filter cartridge and is inserted into it. The eccentric disc is eccentrically positioned with respect to the hollow filter cartridge. A protruding strip is provided on the side of the eccentric disc located inside the hollow filter cartridge. When the torsion spring is in its natural state, one end of the protruding strip is located outside the hollow filter cartridge. When the torsion spring is in its fully compressed state, the protruding strip is located inside the hollow filter cartridge. A lever for manual operation is provided on the side of the eccentric disc located outside the hollow filter cartridge.

[0013] Furthermore, the locking assembly also includes an arc-shaped cover plate, which is disposed on one side of the eccentric disc located inside the hollow filter cartridge, and the arc-shaped cover plate can block the injection port when the torsion spring is in a fully compressed state.

[0014] Furthermore, a positioning strip is provided at the bottom of the hollow filter cartridge, and a positioning groove adapted to the positioning strip is provided on the cover to prevent the hollow filter cartridge from rotating inside the cover.

[0015] The beneficial effects of this utility model are reflected in:

[0016] This invention, by incorporating a filter assembly within the cover, ensures that after the cover is installed at the door / window drainage hole via a snap-fit ​​component, all rainwater discharged will first be filtered by the filter assembly before being discharged through the movable baffle. Because easily clogged impurities carried in the rainwater are intercepted, the probability of the movable baffle becoming clogged is reduced. Furthermore, since the filter assembly is locked to the cover via a locking component, users can remove the filter assembly from the cover for cleaning by unlocking the locking component, ensuring that the filter assembly continues to operate normally during extended use, thus achieving high stability in use. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a schematic diagram of the installation of the cover of this utility model;

[0019] Figure 3This is a partial cross-sectional view of the present invention.

[0020] In the picture:

[0021] 1. Cover; 2. Snap-fit ​​component; 3. Movable baffle; 4. Filter assembly; 41. Hollow filter cartridge; 42. Sealing strip; 5. Locking assembly; 51. Eccentric disc; 52. Raised strip; 53. Lever; 54. Arc-shaped cover. Detailed Implementation

[0022] 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 a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figure 1-3 This utility model discloses a door and window drainage hole cover, including a cover body 1 with an internal cavity, and an inlet and an outlet communicating with the cavity on opposite sides of the cover body 1, and further including:

[0024] The snap-fit ​​component 2 is located inside the cavity of the cover 1, with one end passing through the liquid inlet and extending outside the liquid inlet, for snapping and fixing with the drain hole of the door or window;

[0025] The movable baffle 3 is rotatably installed inside the liquid outlet of the cover 1 to block the liquid outlet when not draining.

[0026] The filter assembly 4 is detachably installed in the cavity of the cover 1 and located between the liquid inlet and the liquid outlet, and is used to filter the liquid discharged from the liquid inlet to the liquid outlet.

[0027] Locking component 5 is provided on filter component 4 to prevent the installed filter component 4 from separating from cover 1.

[0028] This utility model, by setting a filter assembly 4 inside the cover 1, ensures that after the cover 1 is installed at the door / window drainage hole via the snap-fit ​​component 2, the rainwater discharged will first be filtered by the filter assembly 4 and then discharged through the movable baffle 3. Since easily clogged impurities carried in the rainwater are intercepted, the probability of the movable baffle 3 becoming clogged is reduced. At the same time, since the filter assembly 4 is locked to the cover 1 via the locking component 5, the user can remove the filter assembly 4 from the cover 1 for cleaning by unlocking the locking component 5, ensuring that the filter assembly 4 can still operate normally during subsequent long-term use, thereby achieving the purpose of high stability in use.

[0029] It should be noted that the snap-fit ​​component 2 is common knowledge in this field, so its specific structure and working principle will not be described in detail here.

[0030] In one embodiment, the filter assembly 4 includes a hollow filter cartridge 41 that is inserted into the cover 1 and can move along the length of the cover 1. One end of the cover 1 along the length is provided with an installation hole for inserting the hollow filter cartridge 41 into the cavity of the cover 1, and the other end of the cover 1 along the length is provided with a slot for the corresponding end of the hollow filter cartridge 41 to be inserted. The hollow filter cartridge 41 is located below the liquid inlet, and the hollow filter cartridge 41 is provided with an injection port for the liquid discharged from the liquid inlet to enter the hollow filter cartridge 41. The filter assembly 4 also includes a plurality of sealing strips 42 disposed in the cavity of the cover 1 and abutting against the hollow filter cartridge 41. The sealing strips 42 are used to prevent the liquid discharged from the liquid inlet from being discharged from the gap between the hollow filter cartridge 41 and the cover 1.

[0031] This design allows the hollow filter cartridge 41 to be inserted into the cover 1 through one side of the mounting hole until the other end of the hollow filter cartridge 41 is inserted into the slot, so that both ends of the hollow filter cartridge 41 are supported by the cover 1. At this time, the installed hollow filter cartridge 41 abuts against the sealing strip 42, allowing rainwater discharged from the liquid inlet to be introduced into the hollow filter cartridge 41 for filtration through the liquid injection port. Impurities that are prone to clogging are intercepted and collected in the hollow filter cartridge 41, while the rainwater is discharged through the filter holes on the hollow filter cartridge 41. Finally, the movable baffle 3 is pushed to flip and discharged outdoors. When the hollow filter cartridge 41 is pulled out, the impurities collected in the hollow filter cartridge 41 can be carried out with it, which is convenient for subsequent cleaning.

[0032] In one embodiment, the locking component 5 includes an eccentric disc 51, which is rotatably mounted at one end of the corresponding mounting hole of the hollow filter cartridge 41 by a torsion spring. The eccentric disc 51 passes through the hollow filter cartridge 41 and is inserted into the hollow filter cartridge 41. The eccentric disc 51 is eccentrically positioned with respect to the hollow filter cartridge 41. A protrusion 52 is provided on the side of the eccentric disc 51 located inside the hollow filter cartridge 41. When the torsion spring is in its natural state, one end of the protrusion 52 is located outside the hollow filter cartridge 41. When the torsion spring is in its fully compressed state, the protrusion 52 is located inside the hollow filter cartridge 41. A lever 53 for manual operation is provided on the side of the eccentric disc 51 located outside the hollow filter cartridge 41.

[0033] With this design, before the hollow filter cartridge 41 is inserted into the cover body 1, the lever 53 is first moved to rotate the eccentric disk 51 and compress the torsion spring. When the protrusion 52 is inside the hollow filter cartridge 41, the hollow filter cartridge 41 is inserted into the cover body 1. After the hollow filter cartridge 41 is fully inserted, the lever 53 is released, and the eccentric disk 51 is pushed back to its original position by the torsion spring. At this time, one end of the protrusion 52 is outside the hollow filter cartridge 41, so that the hollow filter cartridge 41 is blocked by the protrusion 52 and cannot be pulled out through the mounting hole.

[0034] In one embodiment, the locking component 5 further includes an arc-shaped cover plate 54, which is disposed on one side of the eccentric disk 51 located inside the hollow filter cartridge 41, and the arc-shaped cover plate 54 can block the injection port when the torsion spring is in a fully compressed state.

[0035] This design allows the arc-shaped cover plate 54 to rotate synchronously when the user removes the hollow filter cartridge 41 by turning the lever 53, thus sealing the liquid injection port and ensuring that impurities inside the hollow filter cartridge 41 will not fall into the cover body 1 during the extraction process, further improving the stability of use.

[0036] In one embodiment, a positioning strip is provided at the bottom of the hollow filter cartridge 41, and a positioning groove adapted to the positioning strip is provided on the cover 1 to prevent the hollow filter cartridge 41 from rotating inside the cover 1.

[0037] This design allows users to quickly complete the installation and alignment process of the hollow filter cartridge 41 by using the positioning strip and positioning groove for positioning. At the same time, after the hollow filter cartridge 41 is installed, the positioning strip can prevent the hollow filter cartridge 41 from rotating, ensuring that the position of the liquid injection port is at the required angle.

[0038] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0039] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0040] Additionally, "multiple" refers to two or more.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drain hole cover for doors and windows, comprising a cover body (1) having an internal cavity, wherein the cover body (1) is provided with an inlet and an outlet communicating with the cavity on opposite sides, characterized in that, Also includes: The snap-fit ​​component (2) is located inside the cavity of the cover (1), and one end passes through the liquid inlet and extends to the outside of the liquid inlet, for snap-fitting and fixing with the drain hole of the door and window; The movable baffle (3) is rotatably installed inside the liquid outlet of the cover (1) to block the liquid outlet when not draining. The filter assembly (4) is detachably installed in the cavity of the cover (1) and located between the inlet and outlet for filtering the liquid discharged from the inlet to the outlet. A locking component (5) is provided on the filter assembly (4) to prevent the installed filter assembly (4) from separating from the cover (1).

2. The door and window drainage hole cover according to claim 1, characterized in that: The filter assembly (4) includes a hollow filter cartridge (41) that is inserted into the cover (1) and can move along the length of the cover (1). One end of the cover (1) along the length is provided with an installation hole for inserting the hollow filter cartridge (41) into the cavity of the cover (1). The other end of the cover (1) along the length is provided with a slot for the corresponding end of the hollow filter cartridge (41) to be inserted. The hollow filter cartridge (41) is located below the liquid inlet, and the hollow filter cartridge (41) is provided with an injection port for the liquid discharged from the liquid inlet to enter the hollow filter cartridge (41). The filter assembly (4) also includes a plurality of sealing strips (42) disposed in the cavity of the cover (1) and abutting against the hollow filter cartridge (41). The sealing strips (42) are used to prevent the liquid discharged from the liquid inlet from being discharged from the gap between the hollow filter cartridge (41) and the cover (1).

3. The door and window drainage hole cover according to claim 2, characterized in that: The locking assembly (5) includes an eccentric disc (51), which is rotatably mounted on one end of the corresponding mounting hole of the hollow filter cartridge (41) by a torsion spring. The eccentric disc (51) passes through the hollow filter cartridge (41) and is inserted into the hollow filter cartridge (41). The eccentric disc (51) is eccentrically mounted to the hollow filter cartridge (41). A protrusion (52) is provided on the side of the eccentric disc (51) inside the hollow filter cartridge (41). When the torsion spring is in its natural state, one end of the protrusion (52) is located outside the hollow filter cartridge (41). When the torsion spring is in its fully compressed state, the protrusion (52) is located inside the hollow filter cartridge (41). A lever (53) for manual operation is provided on the side of the eccentric disc (51) outside the hollow filter cartridge (41).

4. The door and window drainage hole cover according to claim 3, characterized in that: The locking assembly (5) also includes an arc-shaped cover plate (54), which is disposed on one side of the eccentric disc (51) located inside the hollow filter cartridge (41), and the arc-shaped cover plate (54) can block the injection port when the torsion spring is in a fully compressed state.

5. A door and window drainage hole cover according to claim 2, characterized in that: The hollow filter cartridge (41) is provided with a positioning strip at the bottom, and the cover (1) is provided with a positioning groove that matches the positioning strip, which is used to prevent the hollow filter cartridge (41) from rotating inside the cover (1).