Waterproof wall bushing structure for basement

By using the threaded connection design of the outer and inner sleeves and the multi-layer sealing ring structure, the problem of fixed length of existing waterproof through-wall sleeve structures is solved, enabling adjustment to adapt to different wall thicknesses and enhancing waterproof performance.

CN223868724UActive Publication Date: 2026-02-03CITIC CONSTR
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Patent Information

Application Number
CN202520704807.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-02-03
Estimated Expiration
2035-04-15

AI Technical Summary

Technical Problem

Existing waterproof through-wall sleeves have a fixed length, making it difficult to adapt to walls of different thicknesses. They tend to protrude from the wall surface, taking up space and being easily damaged, especially when the wall is thin.

Method used

It adopts an outer tube sleeve and an inner tube sleeve design. The inner surface of the outer tube sleeve is provided with external threads, and the outer surface of the inner tube sleeve is provided with internal threads. The length can be adjusted by threaded connection, and it is equipped with multi-layer sealing rings and water-stop rings to enhance waterproof performance.

Benefits of technology

This design allows for adjustment of the sleeve length based on wall thickness, enhancing waterproofing, preventing protrusions from the wall surface, and improving the stability and aesthetics of the sleeve.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waterproof wall bushing structure for a basement, which relates to the technical field of building waterproof engineering and comprises an outer bushing, an inner bushing and a waterstop ring, external threads are arranged on the inner surface of the outer bushing, an outer buckling ring is fixed at one end of the outer bushing, and a first sealing ring is fixed on the end face, close to the outer bushing, of the outer buckling ring. The outer surface of the inner pipe sleeve is provided with an inner thread in threaded fit with the outer thread, an inner buckling ring is fixed to one end of the inner pipe sleeve, and the water stop ring is integrally and fixedly connected to the outer side of the outer pipe sleeve in a sleeving mode. The outer pipe sleeve and the inner pipe sleeve are connected in a threaded and sleeved mode, the overall length can be adjusted according to the actual thickness of a wall, the application range is wider, underground water can not permeate into a gap between the outer pipe sleeve and the wall easily through the arranged first sealing ring, underground water can not permeate into the gap between the outer pipe sleeve and the inner pipe sleeve easily through the second sealing ring, and the sealing effect is better. And the third sealing ring and the fourth sealing ring can effectively prevent infiltrated underground water from continuously infiltrating into a room.
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Description

Technical Field

[0001] This utility model relates to the field of building waterproofing engineering technology, and in particular to a waterproof through-wall sleeve structure for basements. Background Technology

[0002] In basement construction, numerous pipes, such as water supply and drainage pipes, ventilation pipes, and cable pipes, need to pass through the basement walls. Special through-wall sleeve structures need to be pre-installed on the walls. For example, patent publication number CN221569703U provides a waterproof through-wall sleeve structure for basements, including a sleeve body. A limiting wing ring is connected to the middle of the sleeve body. At least two limiting wing rings are provided, and a locking notch is provided on the periphery of each limiting wing ring. A thread is provided on the outer surface of the middle part of the sleeve body, and a thread matching the thread is provided on the inner surface of the limiting wing ring. In use, rotating the limiting wing ring adjusts the distance between two adjacent limiting wing rings, achieving a relative fixation between the sleeve body and the building structure.

[0003] However, the length of the aforementioned waterproof through-wall sleeve structure is fixed, making it difficult to adapt to walls of varying thicknesses. Especially when the wall thickness is thin, the aforementioned waterproof through-wall sleeve structure protrudes from the wall, resulting in ineffective occupation of indoor or outdoor space, and the protruding pipe is easily damaged. Therefore, a waterproof through-wall sleeve structure for basements is proposed to improve these problems. Utility Model Content

[0004] The purpose of this application is to provide a waterproof through-wall sleeve structure for basements to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: a waterproof through-wall sleeve structure for basements, comprising:

[0006] The outer sleeve has an external thread on its inner surface. One end of the outer sleeve is fixed with an external pressure ring, and a first sealing ring is fixed to the end face of the external pressure ring near the outer sleeve.

[0007] The inner sleeve has an internal thread on its outer surface that mates with the external thread, and an internal buckling ring is fixed at one end of the inner sleeve.

[0008] Water-stop ring, the water-stop ring is integrally fixedly sleeved on the outside of the outer pipe sleeve.

[0009] As a further supplement to this solution, a convex ring is integrally fixed at the inner ring of the outer clamping ring, and the inner diameter of the convex ring is consistent with the inner diameter of the inner sleeve.

[0010] As a further supplement to this solution, a second sealing ring is fixed on the inner wall of the convex ring.

[0011] As a further supplement to this solution, a third sealing ring is fixed on the inner wall of the inner sleeve, and a fourth sealing ring is fixed on the end face of the inner buckling ring near the inner sleeve.

[0012] As a further supplement to this solution, multiple first sealing rings, second sealing rings, third sealing rings, fourth sealing rings, and water-stop rings are provided.

[0013] As a further supplement to this solution, water-swellable sealant is filled between two adjacent first sealing rings, two adjacent second sealing rings, two adjacent third sealing rings, and two adjacent fourth sealing rings.

[0014] As a further supplement to this solution, multiple positioning blocks are fixed at equal intervals on the side end of the water-stop ring.

[0015] In summary, the technical effects and advantages of this utility model are as follows:

[0016] 1. In this utility model, by setting an outer tube sleeve and an inner tube sleeve, and setting an external thread on the inner surface of the outer tube sleeve and setting an internal thread on the outer surface of the inner tube sleeve that mates with the external thread, the outer tube sleeve and the inner tube sleeve are threadedly connected, and the overall length can be adjusted according to the actual thickness of the wall, thus having a wider range of applications.

[0017] 2. In this utility model, the first sealing ring makes it difficult for groundwater to seep into the gap between the outer pipe sleeve and the wall. The second sealing ring makes it difficult for groundwater to seep into the gap between the outer pipe sleeve and the inner pipe sleeve. The third and fourth sealing rings both play a secondary waterproofing role. Even if the first and second sealing rings cannot block groundwater, the third and fourth sealing rings can effectively prevent the infiltrated groundwater from continuing to seep into the room.

[0018] 3. In this utility model, the water-stop ring can extend the seepage path, thereby enhancing the waterproof effect. By fixing multiple positioning blocks at equal intervals on the side end of the water-stop ring, the positioning blocks are embedded in the concrete inside the wall along with the water-stop ring, which can effectively prevent the outer sleeve from rotating relative to the wall, thereby ensuring the stable waterproof performance of the sleeve. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure in the assembled state in this embodiment;

[0021] Figure 2This is a schematic diagram of the three-dimensional structure in the disassembled state in this embodiment;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure in this embodiment.

[0023] In the diagram: 1. Outer sleeve; 101. External thread; 11. External compression ring; 12. First sealing ring; 13. Convex ring; 14. Second sealing ring; 2. Inner sleeve; 201. Internal thread; 21. Internal compression ring; 22. Third sealing ring; 23. Fourth sealing ring; 3. Water-stop ring; 31. Positioning block. Detailed Implementation

[0024] 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.

[0025] Example: Reference Figure 1-3 The diagram shows a waterproof through-wall sleeve structure for basements, comprising an outer sleeve 1, an inner sleeve 2, and a water-stop ring 3.

[0026] The outer sleeve 1 has an external thread 101 on its inner surface, and the inner sleeve 2 has an internal thread 201 on its outer surface that is threaded to the external thread 101. The outer sleeve 1 and the inner sleeve 2 are threaded together, and their overall length can be adjusted according to the actual thickness of the wall, making them more widely applicable.

[0027] Both the outer sleeve 1 and the inner sleeve 2 are made of high-strength, corrosion-resistant alloy steel. Their wall thickness is optimized according to the thickness of the basement wall and the expected water pressure, and is generally 8-12mm.

[0028] In addition, an outer clamping ring 11 is fixed to one end of the outer sleeve 1, and an inner clamping ring 21 is fixed to one end of the inner sleeve 2. During installation, the outer clamping ring 11 is attached to the outer surface of the wall, i.e. the water-facing side. A first sealing ring 12 is fixed to the end face of the outer clamping ring 11 near the outer sleeve 1. The first sealing ring 12 on the outer clamping ring 11 can be tightly attached to the water-facing side of the wall by the external soil and water pressure, which can achieve an effective waterproofing effect and prevent groundwater from easily seeping into the gap between the outer sleeve 1 and the wall. The inner clamping ring 21 is attached to the inner surface of the wall, i.e. the back water-facing side, which can make the position where the indoor pipe passes through the wall more aesthetically pleasing.

[0029] Among them, the water-stop ring 3 is integrally fixedly sleeved on the outside of the outer sleeve 1. The water-stop ring 3 can extend the seepage path, thereby enhancing the waterproof effect.

[0030] like Figure 3 As shown, a convex ring 13 is integrally fixed at the inner ring of the outer buckling ring 11. The inner diameter of the convex ring 13 is consistent with the inner diameter of the inner sleeve 2. A second sealing ring 14 is fixed on the inner wall of the convex ring 13. The second sealing ring 14 can prevent groundwater from easily seeping into the space between the outer sleeve 1 and the inner sleeve 2.

[0031] To further enhance the waterproofing effect, a third sealing ring 22 is fixed on the inner wall of the inner sleeve 2, and a fourth sealing ring 23 is fixed on the inner buckling ring 21 near the end face of the inner sleeve 2. Both the third sealing ring 22 and the fourth sealing ring 23 play a secondary waterproofing role. That is, even if the first sealing ring 12 and the second sealing ring 14 cannot intercept groundwater, the third sealing ring 22 and the fourth sealing ring 23 can effectively prevent the infiltrated groundwater from continuing to seep into the room.

[0032] The first sealing ring 12, the second sealing ring 14, the third sealing ring 22 and the fourth sealing ring 23 mentioned above are all made of butyl rubber. Butyl rubber has excellent air tightness, water tightness and aging resistance, which makes the waterproof performance of the waterproof wall sleeve more stable and reliable.

[0033] like Figure 3 As shown, multiple first sealing rings 12, second sealing rings 14, third sealing rings 22, fourth sealing rings 23, and water-stop rings 3 are provided, which can achieve multiple waterproofing effects.

[0034] In addition, water-swellable sealant (not shown in the figure) is filled between two adjacent first sealing rings 12, two adjacent second sealing rings 14, two adjacent third sealing rings 22, and two adjacent fourth sealing rings 23. This sealant is based on a superabsorbent polymer material, which has good plasticity and adhesion in the dry state and can tightly fill the gaps; it expands rapidly when it comes into contact with water, and its volume can increase by 2-3 times, further sealing any possible gaps and enhancing the waterproof performance.

[0035] To prevent the outer sleeve 1 from rotating relative to the wall and thus reducing its waterproof performance, multiple positioning blocks 31 are fixed at equal intervals on the side end of the water-stop ring 3. The positioning blocks 31 are embedded in the concrete inside the wall along with the water-stop ring 3, which can effectively prevent the outer sleeve 1 from rotating relative to the wall.

[0036] The working principle of this utility model is as follows: During installation, the outer buckle ring 11 is attached to the outer surface of the wall. The external soil and water pressure can be used to make the first sealing ring 12 on the outer buckle ring 11 tightly attached to the water-facing side of the wall, which can effectively waterproof the wall and prevent groundwater from easily seeping into the gap between the outer pipe sleeve 1 and the wall.

[0037] Insert the inner sleeve 2 into the reserved hole from the inside of the wall and thread it with the outer sleeve 1 until the inner buckling ring 21 fits against the inner surface of the wall, making the position of the indoor pipe through the wall more aesthetically pleasing.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 waterproof through-wall sleeve structure for basements, characterized in that, include: The outer sleeve (1) has an external thread (101) on its inner surface. One end of the outer sleeve (1) is fixed with an external buckling ring (11). The external buckling ring (11) is fixed with a first sealing ring (12) near the end face of the outer sleeve (1). Inner sleeve (2), the outer surface of the inner sleeve (2) is provided with an inner thread (201) that is threaded with the outer thread (101), and an inner buckling ring (21) is fixed at one end of the inner sleeve (2); Water-stop ring (3), which is integrally and fixedly sleeved on the outside of the outer sleeve (1).

2. The waterproof through-wall sleeve structure for basements according to claim 1, characterized in that: The outer buckle ring (11) has a convex ring (13) integrally fixed at its inner ring, and the inner diameter of the convex ring (13) is consistent with the inner diameter of the inner sleeve (2).

3. The waterproof through-wall sleeve structure for basements according to claim 2, characterized in that: A second sealing ring (14) is fixed on the inner wall of the convex ring (13).

4. A waterproof through-wall sleeve structure for basements according to claim 3, characterized in that: A third sealing ring (22) is fixed on the inner wall of the inner sleeve (2), and a fourth sealing ring (23) is fixed on the end face of the inner buckling ring (21) near the inner sleeve (2).

5. A waterproof through-wall sleeve structure for basements according to claim 4, characterized in that: The first sealing ring (12), the second sealing ring (14), the third sealing ring (22), the fourth sealing ring (23) and the water-stop ring (3) are all provided in multiples.

6. A waterproof through-wall sleeve structure for basements according to claim 5, characterized in that: Water-swellable sealant is filled between two adjacent first sealing rings (12), two adjacent second sealing rings (14), two adjacent third sealing rings (22), and two adjacent fourth sealing rings (23).

7. A waterproof through-wall sleeve structure for basements according to claim 1, characterized in that: The water-stop ring (3) has multiple positioning blocks (31) fixed at equal intervals on its side ends.

Citation Information

Patent Citations

  • Waterproof wall bushing structure for basement

    CN221569703U