Drainage structure of sliding door and sliding door

By setting a sealed frame and a removable drain cover between the tracks of the sliding door, a closed intermediate drainage chamber is formed, which solves the problems of poor drainage and difficult cleaning caused by the entry of debris in traditional drainage structures, and achieves efficient and reliable drainage.

CN224452663UActive Publication Date: 2026-07-03GUANGDONG HUANGPAI CUSTOM HOME FURNISHING GRP CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG HUANGPAI CUSTOM HOME FURNISHING GRP CO LTD
Filing Date
2025-07-22
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional sliding doors have drainage structures with through holes and drainage chambers on the outside of the track, which makes it easy for debris to enter, resulting in poor drainage and difficulty in cleaning, affecting performance and lifespan.

Method used

A sealed frame is set between the two tracks to form a closed intermediate drainage chamber. Liquid is introduced through the intermediate drain and discharged through the outdoor drain hole, the outdoor drainage chamber and the outlet. Combined with the removable drain cover to filter debris, it ensures smooth and efficient drainage.

Benefits of technology

It effectively prevents debris from entering between the tracks, ensures smooth drainage, reduces cleaning difficulty and maintenance costs, and improves drainage efficiency and watertightness.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224452663U_ABST
    Figure CN224452663U_ABST
Patent Text Reader

Abstract

The utility model discloses a drainage structure of sliding door and sliding door belong to door and window technical field. The lower rail section is equipped with first track and second track, and the first track is equipped with outdoor drainage cavity, outdoor drainage hole and water outlet on the outside of second track, and the drainage sealing element includes the sealing frame body and the support foot, and the support foot is used for supporting the sealing frame body and is suspended between the first track and the second track, and the lower portion of sealing frame body and the lower rail section are enclosed and form the closed intermediate drainage cavity, and the sealing frame body is equipped with the intermediate water leakage hole that communicates with the intermediate drainage cavity, and the liquid in the intermediate drainage cavity can be in turn through outdoor drainage hole, outdoor drainage cavity and water outlet and export to the outside of lower rail section. The utility model discloses through setting up the sealing frame body between two tracks, forms the closed intermediate drainage cavity, and effectively improved the drainage efficiency and water tightness of sliding door.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of door and window technology, and in particular to a drainage structure for a sliding door and a sliding door itself. Background Technology

[0002] With the continuous development of the construction industry and people's increasing demands for comfort and energy efficiency in their living environments, sliding doors, as a common type of building door and window, have seen a steady expansion in market size. However, in actual use, the drainage structure of traditional sliding doors has revealed many problems, which not only affect the performance of the sliding doors but also shorten their service life.

[0003] Taking a windproof and drainage sliding door disclosed in patent CN211598279U as an example, its drainage structure typically only has simple through holes and drainage chambers on the outer track of the lower track profile. Water accumulated between the two tracks is drained through these holes and chambers. However, this design has significant drawbacks in practical applications. Because the drainage holes are located on the outer track, debris (such as dust, sand, and small stones) between the two tracks is easily carried into the drainage chamber with the rainwater, leading to poor drainage. Once debris enters the drainage chamber of the outer track, cleaning becomes extremely difficult, often requiring disassembly of the track or the use of specialized tools. This undoubtedly increases maintenance costs and causes considerable inconvenience to users. Utility Model Content

[0004] The purpose of this utility model is to provide a drainage structure for a sliding door and a sliding door in general. By setting a sealing frame between two tracks to form a closed intermediate drainage cavity, the drainage efficiency and watertight performance of the sliding door are effectively improved.

[0005] In a first aspect, this utility model provides a drainage structure for a sliding door, comprising:

[0006] The lower rail profile is provided with a first rail and a second rail. The first rail is located outside the second rail. The first rail is provided with an outdoor drainage chamber, an outdoor drainage hole and a water outlet.

[0007] A drainage seal includes a sealing frame and a support foot. The support foot supports the sealing frame, which is suspended between the first track and the second track. A closed intermediate drainage cavity is formed between the lower part of the sealing frame and the lower rail profile. The sealing frame is also provided with an intermediate drain outlet connected to the intermediate drainage cavity. The intermediate drain outlet is used to allow liquid between the first track and the second track to enter the intermediate drainage cavity. The liquid in the intermediate drainage cavity can be sequentially discharged to the outside of the lower rail profile through the outdoor drainage hole, the outdoor drainage cavity, and the outlet.

[0008] The drainage structure of the sliding door provided by this utility model features a sealed frame. The lower part of the sealed frame, together with the lower track profile, forms a closed intermediate drainage chamber. Liquid between the first and second tracks is introduced into the intermediate drainage chamber through a central drain outlet. The liquid is then discharged to the outside of the lower track profile through an outdoor drain hole, the outdoor drainage chamber, and an outlet. This optimizes the drainage path, ensuring smooth and efficient drainage. Furthermore, the sealed frame also seals the space between the two tracks, effectively preventing debris (such as dust, sand, and small stones) from falling between them. Debris cannot enter the drainage chamber of the outer track, thus avoiding problems of poor drainage and difficult cleaning caused by debris accumulation, and helping to ensure the normal drainage of the drainage structure.

[0009] Furthermore, it also includes an intermediate drain cover, which is detachably disposed inside the intermediate drain outlet. The intermediate drain cover is provided with a plurality of spaced-apart first drain holes, which allow liquid between the first track and the second track to enter the intermediate drain chamber.

[0010] By adopting the above technical solution, the intermediate drain cover, with its multiple spaced-apart first drainage holes, can effectively filter out larger debris, preventing it from entering the intermediate drain chamber and further reducing the risk of drain hole blockage. The intermediate drain cover features a detachable design, facilitating cleaning or replacement by the user as needed, which not only improves the reliability of the drainage system but also reduces maintenance costs and cleaning difficulty.

[0011] Furthermore, the sealing frame is provided with fixing slots on both sides, and fixing blocks are provided on the first track and the second track, and the fixing blocks can be inserted into the fixing slots.

[0012] By adopting the above technical solution, fixing slots are provided on opposite sides of the sealing frame, and corresponding fixing blocks are provided on the first and second tracks, allowing the sealing frame to be securely installed between the two tracks. Furthermore, the fixing slots and blocks simplify and extricate the sealing frame from installation, allowing users to easily complete the installation and maintenance without the need for complex tools or cumbersome operations.

[0013] Furthermore, the second track is provided with an indoor drainage chamber, an indoor drainage hole, and an indoor water outlet. The indoor water outlet is located on the side of the second track away from the first track. The indoor water outlet is used to allow liquid to enter the indoor drainage chamber. The indoor drainage hole connects the indoor drainage chamber and the intermediate drainage chamber.

[0014] By employing the above technical solution, and by setting an indoor drainage chamber, an indoor drainage hole, and an indoor leak outlet on the second track, liquid can enter the indoor drainage chamber through the indoor leak outlet, then flow into the intermediate drainage chamber through the indoor drainage hole, and finally be discharged through the outdoor drainage hole. The setting of the indoor leak outlet and indoor drainage hole further enhances the sealing performance of the drainage system, ensuring that the liquid can only flow in one direction and preventing rainwater from flowing back into the room through the drainage hole.

[0015] Furthermore, the support foot is provided with a central drainage hole, which connects the opposite sides of the support foot, so that the liquid in the central drainage chamber can flow from one side of the indoor drainage hole to one side of the outdoor drainage hole.

[0016] By adopting the above technical solution, and by setting a middle drainage hole on the support foot, liquid can flow from the indoor drainage hole side to the outdoor drainage hole side through the middle drainage hole, ensuring a smoother drainage process, improving drainage efficiency, and enabling the drainage system to more effectively cope with the influx of large amounts of rainwater and prevent poor drainage.

[0017] Furthermore, the number of the support legs is at least two, and each of the at least two support legs is provided with the central drainage hole.

[0018] Furthermore, it also includes an indoor drain cover, which is detachably disposed inside the indoor drain outlet. The indoor drain cover is provided with a plurality of spaced-apart second drain holes, which allow liquid to enter the indoor drain chamber.

[0019] By adopting the above technical solution, the indoor drain cover, through its multiple spaced second drainage holes, can effectively filter out larger debris, preventing these debris from entering the indoor drain cavity and further reducing the risk of drain hole blockage.

[0020] Furthermore, it also includes an outdoor drainage cover, which is detachably installed inside the water outlet. The outdoor drainage cover is provided with a plurality of spaced third drainage holes, which allow the liquid from the outdoor drainage chamber to be output to the outside of the lower rail profile.

[0021] By adopting the above technical solution, the outdoor drainage cover, through multiple spaced third drainage holes, can effectively filter out larger debris, prevent these debris from entering the outdoor drainage chamber, and further reduce the risk of drainage hole blockage.

[0022] Furthermore, it also includes a one-way drain cover, which is disposed inside the outdoor drain hole. The one-way drain cover allows liquid to flow from the intermediate drain chamber to the outdoor drain chamber, and the one-way drain cover can also prevent liquid in the outdoor drain chamber from flowing to the intermediate drain chamber.

[0023] By adopting the above technical solution, the one-way drainage hole cover ensures that liquid can only flow from the middle drainage chamber to the outdoor drainage chamber and cannot flow in the opposite direction. This effectively prevents liquid in the outdoor drainage chamber from flowing back into the middle drainage chamber, further enhancing the one-wayness of the drainage system and improving its watertightness.

[0024] Secondly, the present invention provides a sliding door, including the drainage structure of any of the above-mentioned sliding doors.

[0025] As can be seen from the above, the drainage structure of the sliding door provided by this utility model, by setting a sealing frame, forms a closed intermediate drainage chamber between the lower part of the sealing frame and the lower track profile. Liquid between the first and second tracks is introduced into the intermediate drainage chamber through the intermediate drain outlet, and then discharged to the outside of the lower track profile through the outdoor drain hole, the outdoor drainage chamber, and the outlet. This optimizes the drainage path and ensures a smooth and efficient drainage process. Furthermore, the sealing frame also seals the space between the two tracks, effectively preventing debris (such as dust, sand, and small stones) from falling between the tracks. Debris cannot enter the drainage chamber of the outer track, thus avoiding problems of poor drainage and difficult cleaning caused by debris accumulation, and helping to ensure the normal drainage of the drainage structure.

[0026] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing embodiments of this application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the drainage structure of a sliding door proposed in this utility model.

[0028] Figure 2 for Figure 1 A schematic diagram of the structure of the central drainage cover.

[0029] Figure 3 for Figure 1 A schematic diagram of the structure of the indoor drainage cover.

[0030] Figure 4 for Figure 1 A schematic diagram of the structure of the outdoor drainage cover.

[0031] Figure 5 This is a schematic diagram of the structure of a sliding door proposed in this utility model.

[0032] In the attached diagram: 100, lower rail profile; 110, first rail; 111, outdoor drainage chamber; 112, outdoor drainage hole; 113, water outlet; 120, second rail; 121, indoor drainage chamber; 122, indoor drainage hole; 123, indoor water outlet; 130, fixing block; 200, drainage seal; 210, sealing frame; 211, intermediate water outlet; 212, fixing groove; 220, support foot; 221, intermediate drainage hole; 230, intermediate drainage chamber; 300, intermediate drainage cover; 310, first water outlet; 400, indoor drainage cover; 410, second water outlet; 500, outdoor drainage cover; 510, third water outlet; 600, one-way drainage hole cover. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] The following disclosure provides many different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0035] The drainage structure of the sliding door disclosed in this utility model is mainly used in balcony sliding doors. By setting a sealing frame between two tracks to form a closed intermediate drainage cavity, the drainage efficiency and watertight performance of the sliding door are effectively improved.

[0036] Reference Appendix Figure 1In one embodiment, the drainage structure of the sliding door includes a lower track profile 100 and a drainage seal 200. The lower rail profile 100 is provided with a first rail 110 and a second rail 120. The first rail 110 is located outside the second rail 120. The first rail 110 is provided with an outdoor drainage chamber 111, an outdoor drainage hole 112 and a water outlet 113. The drainage seal 200 includes a sealing frame 210 and a support foot 220. The support foot 220 is used to support the sealing frame 210 suspended between the first rail 110 and the second rail 120. The lower part of the sealing frame 210 and the lower rail profile 100 enclose a closed intermediate drainage chamber 230. The sealing frame 210 is also provided with an intermediate drain outlet 211 that communicates with the intermediate drainage chamber 230. The intermediate drain outlet 211 is used to allow liquid between the first rail 110 and the second rail 120 to enter the intermediate drainage chamber 230. The liquid in the intermediate drainage chamber 230 can be output to the outside of the lower rail profile 100 in sequence through the outdoor drainage hole 112, the outdoor drainage chamber 111 and the water outlet 113.

[0037] As can be seen from the above, the drainage structure of the sliding door provided by this utility model, by setting a sealing frame 210, forms a closed intermediate drainage cavity 230 between the lower part of the sealing frame 210 and the lower track profile 100. Liquid between the first track 110 and the second track 120 is introduced into the intermediate drainage cavity 230 through the intermediate drain outlet 211, and then discharged to the outside of the lower track profile 100 through the outdoor drain hole 112, the outdoor drainage cavity 111, and the outlet 113. This optimizes the drainage path and ensures a smooth and efficient drainage process. In addition, the sealing frame 210 also seals the space between the two tracks, effectively preventing debris (such as dust, sand, pebbles, etc.) from falling between the tracks. Debris cannot enter the drainage cavity of the outer track, thus avoiding the problems of poor drainage and difficult cleaning caused by debris accumulation, and helping to ensure the normal drainage of the drainage structure.

[0038] In one embodiment, the sealing frame 210 is provided with fixing slots 212 on both sides, and the first track 110 and the second track 120 are provided with fixing blocks 130, which can be inserted into the fixing slots 212.

[0039] By adopting the above technical solution, fixing slots 212 are provided on opposite sides of the sealing frame 210, and corresponding fixing blocks 130 are provided on the first track 110 and the second track 120, so that the sealing frame 210 can be stably installed between the two tracks. Furthermore, the fixing slots 212 and fixing blocks 130 make the installation and disassembly of the sealing frame 210 simple and quick, allowing users to easily complete the installation and maintenance of the sealing frame 210 without using complex tools or performing cumbersome operations.

[0040] In one embodiment, the second track 120 is provided with an indoor drainage chamber 121, an indoor drainage hole 122 and an indoor drain outlet 123. The indoor drain outlet 123 is located on the side of the second track 120 away from the first track 110. The indoor drain outlet 123 is used to allow liquid to enter the indoor drainage chamber 121. The indoor drainage hole 122 connects the indoor drainage chamber 121 and the intermediate drainage chamber 230.

[0041] By employing the above technical solution, and by setting an indoor drainage chamber 121, an indoor drainage hole 122, and an indoor drain outlet 123 on the second track 120, liquid can enter the indoor drainage chamber 121 through the indoor drain outlet 123, then flow into the intermediate drainage chamber 230 through the indoor drainage hole 122, and finally be discharged through the outdoor drainage hole 112. The setting of the indoor drain outlet 123 and the indoor drainage hole 122 further enhances the sealing performance of the drainage system, ensuring that the liquid can only flow in one direction and preventing rainwater from flowing back into the room through the drainage hole.

[0042] In one embodiment, the support foot 220 is provided with a middle drainage hole 221, which connects the opposite sides of the support foot 220 so that the liquid in the middle drainage chamber 230 can flow from one side of the indoor drainage hole 122 to one side of the outdoor drainage hole 112.

[0043] By adopting the above technical solution, by setting a middle drainage hole 221 on the support foot 220, liquid can flow from the indoor drainage hole 122 side to the outdoor drainage hole 112 side through the middle drainage hole 221, ensuring a smoother drainage process, improving drainage efficiency, and enabling the drainage system to more effectively cope with the influx of large amounts of rainwater and prevent poor drainage.

[0044] In one embodiment, the number of support feet 220 is at least two, and each of the at least two support feet 220 is provided with a central drainage hole 221.

[0045] Reference Appendix Figure 1 Appendix Figure 3 In one embodiment, an indoor drain cover 400 is also included. The indoor drain cover 400 is detachably disposed inside the indoor drain outlet 123. The indoor drain cover 400 is provided with a plurality of spaced second drain holes 410, which allow liquid to enter the indoor drain chamber 121.

[0046] By adopting the above technical solution, the indoor drainage cover 400, through the multiple spaced second drainage holes 410 on it, can effectively filter out larger debris, prevent these debris from entering the indoor drainage chamber 121, and further reduce the risk of drainage hole blockage.

[0047] Reference Appendix Figure 1 Appendix Figure 2In one embodiment, an intermediate drain cover 300 is also included. The intermediate drain cover 300 is detachably disposed in the intermediate drain outlet 211. The intermediate drain cover 300 is provided with a plurality of spaced first drain holes 310. The plurality of spaced first drain holes 310 can allow liquid between the first track 110 and the second track 120 to enter the intermediate drain chamber 230.

[0048] By adopting the above technical solution, the intermediate drain cover 300, through its multiple spaced first drainage holes 310, can effectively filter out larger debris, preventing it from entering the intermediate drain chamber 230 and further reducing the risk of drain hole blockage. The intermediate drain cover 300 is detachable, facilitating cleaning or replacement by the user as needed, which not only improves the reliability of the drainage system but also reduces maintenance costs and cleaning difficulty.

[0049] Reference Appendix Figure 1 Appendix Figure 3 In one embodiment, an outdoor drainage cover 500 is also included. The outdoor drainage cover 500 is detachably disposed inside the water outlet 113. The outdoor drainage cover 500 is provided with a plurality of spaced third drainage holes 510, which can allow the liquid from the outdoor drainage chamber 111 to be output to the outside of the lower rail profile 100.

[0050] By adopting the above technical solution, the outdoor drainage cover 500, through the multiple spaced third drainage holes 510 on it, can effectively filter out larger debris, prevent these debris from entering the outdoor drainage chamber 111, and further reduce the risk of drainage hole blockage.

[0051] Reference Appendix Figure 1 Appendix Figure 4 In one embodiment, a one-way drain cover 600 is also included. The one-way drain cover 600 is disposed in the outdoor drain hole 112. The one-way drain cover 600 allows liquid to flow from the intermediate drain chamber 230 to the outdoor drain chamber 111. The one-way drain cover 600 can also prevent liquid in the outdoor drain chamber 111 from flowing to the intermediate drain chamber 230.

[0052] By adopting the above technical solution, the one-way drainage hole cover 600 ensures that liquid can only flow from the intermediate drainage chamber 230 to the outdoor drainage chamber 111, and cannot flow in the opposite direction. This effectively prevents liquid in the outdoor drainage chamber 111 from flowing back into the intermediate drainage chamber 230, further enhancing the one-wayness of the drainage system and improving its watertightness.

[0053] Reference Appendix Figure 5 The present invention also provides a sliding door, including the drainage structure of the sliding door of any of the above embodiments.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A drainage structure of a sliding door, characterized by, include: The lower rail profile (100) is provided with a first rail (110) and a second rail (120). The first rail (110) is located outside the second rail (120). The first rail (110) is provided with an outdoor drainage chamber (111), an outdoor drainage hole (112) and a water outlet (113). The drainage seal (200) includes a sealing frame (210) and a support foot (220). The support foot (220) is used to support the sealing frame (210) suspended between the first track (110) and the second track (120). A closed intermediate drainage cavity (230) is formed between the lower part of the sealing frame (210) and the lower rail profile (100). The sealing frame (210) is also provided with an intermediate drain outlet (211) connected to the intermediate drainage cavity (230). The intermediate drain outlet (211) is used to allow liquid between the first track (110) and the second track (120) to enter the intermediate drainage cavity (230). The liquid in the intermediate drainage cavity (230) can be output to the outside of the lower rail profile (100) in sequence through the outdoor drainage hole (112), the outdoor drainage cavity (111), and the outlet (113).

2. The drainage structure of a sliding door according to claim 1, characterized in that, It also includes an intermediate drain cover (300), which is detachably disposed inside the intermediate drain outlet (211). The intermediate drain cover (300) is provided with a plurality of spaced first drain holes (310), which allow liquid between the first track (110) and the second track (120) to enter the intermediate drain chamber (230).

3. The drainage structure of a sliding door according to claim 1, wherein The sealing frame (210) has fixed slots (212) on both sides, and fixed blocks (130) are provided on the first track (110) and the second track (120). The fixed blocks (130) can be inserted into the fixed slots (212).

4. The drainage structure of a sliding door according to claim 1, wherein The second track (120) is provided with an indoor drainage chamber (121), an indoor drainage hole (122) and an indoor drain outlet (123). The indoor drain outlet (123) is located on the side of the second track (120) away from the first track (110). The indoor drain outlet (123) is used to allow liquid to enter the indoor drainage chamber (121). The indoor drainage hole (122) connects the indoor drainage chamber (121) and the intermediate drainage chamber (230).

5. The drainage structure of a sliding door according to claim 4, wherein The support foot (220) is provided with a middle drainage hole (221), which connects the opposite sides of the support foot (220) so that the liquid in the middle drainage chamber (230) can flow from one side of the indoor drainage hole (122) to one side of the outdoor drainage hole (112).

6. The drainage structure of a sliding door according to claim 5, wherein The number of the support feet (220) is at least two, and each of the at least two support feet (220) is provided with the intermediate drainage hole (221).

7. The drainage structure of a sliding door according to claim 4, wherein It also includes an indoor drain cover (400), which is detachably disposed inside the indoor drain outlet (123). The indoor drain cover (400) is provided with a plurality of spaced second drain holes (410), which allow liquid to enter the indoor drain chamber (121).

8. The drainage structure of a sliding door according to claim 1, wherein It also includes an outdoor drainage cover (500), which is detachably installed inside the outlet (113). The outdoor drainage cover (500) is provided with a plurality of spaced third drainage holes (510), which allow the liquid from the outdoor drainage chamber (111) to be output to the outside of the lower rail profile (100).

9. The drainage structure of a sliding door according to claim 1, wherein It also includes a one-way drain cover (600), which is disposed inside the outdoor drain hole (112). The one-way drain cover (600) allows liquid to flow from the intermediate drain chamber (230) to the outdoor drain chamber (111), and the one-way drain cover (600) can also prevent liquid in the outdoor drain chamber (111) from flowing to the intermediate drain chamber (230).

10. A sliding door, characterized in that The drainage structure includes the sliding door as described in any one of claims 1-9.