Wall-penetrating waterproof sleeve adapting to differential settlement of adjacent buildings
The waterproof sleeve system with a flexible ring and split flange design addresses pipe damage from uneven settlement between adjacent buildings, ensuring pipe and valve chamber integrity.
Patent Information
- Application Number
- CN202422452193.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-10-11
AI Technical Summary
The existing wall-through waterproof casing cannot effectively adapt to uneven settlement when the distance between adjacent buildings is very close, resulting in pipeline rupture and leakage.
The combined structure of embedded casing, flexible waterproof ring and fastener is adopted, and the elastic properties of the flexible waterproof ring are used to adapt to uneven settlement, and are fixed by a combination of fasteners such as casing flanges, pipeline flanges and plate flanges to enhance connection reliability and convenience.
Effectively prevent uneven settlement of adjacent buildings from destroying pipelines, ensure the safety of pipelines and valve wells, improve installation convenience and reliability, and extend pipeline life.
Smart Images

Figure CN223105506U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waterproof sleeves, and specifically relates to a wall-piercing waterproof sleeve adapted to uneven settlement of adjacent buildings. Background Technique
[0002] In the construction of buildings and structures, the water supply and drainage pipeline project is an indispensable infrastructure construction. With the continuous increase of buildings and structures, the laying of pipelines often needs to pass through the walls of different buildings and structures. When laying wall-piercing waterproof sleeves between adjacent buildings and structures, attention needs to be paid to the damage that uneven settlement may bring to the pipelines. However, the existing perforated wall pipelines only have measures to adapt to the uneven settlement of a single building and structure. If uneven settlement occurs between adjacent buildings and structures, it is easy to damage the waterproof sleeve, resulting in pipeline rupture and leakage.
[0003] Wall-piercing waterproof sleeves are usually suitable for burial between buildings and structures with a relatively long distance. In actual projects, there will be cases where the distance between adjacent buildings and structures is very close. Due to different upper body shapes, different foundations, different soil layer structures, etc., uneven settlement occurs, damaging the wall-piercing pipelines, resulting in pipeline rupture and water leakage. Summary of the Invention
[0004] In order to solve the above technical problems, the utility model provides a wall-piercing waterproof sleeve adapted to uneven settlement of adjacent buildings, which can adapt to the uneven settlement of adjacent buildings that are very close to each other and ensure the safety of pipelines and valve wells.
[0005] Its technical solution is as follows: A wall-piercing waterproof sleeve adapted to uneven settlement of adjacent buildings, characterized in that it includes a pre-embedded sleeve, a flexible waterproof ring and fasteners. The pre-embedded sleeve is fixed in the hole of the adjacent building, and the wall-piercing rigid pipeline passes through the pre-embedded sleeve. The flexible waterproof ring is arranged between the wall-piercing rigid pipeline and the pre-embedded sleeve and is fixed by fasteners.
[0006] It is further characterized in that the fasteners include a sleeve flange, a pipeline flange, a pressing plate flange and a bolt and nut assembly. The pressing plate flange includes an outer large flange and an inner small flange. The sleeve flange is welded and fixed on the pre-embedded sleeve, the pipeline flange is welded and fixed on the wall-piercing rigid pipeline, the outer ring of the flexible waterproof ring is fixed on the sleeve flange through the outer large flange and the bolt and nut assembly, and the inner ring of the flexible waterproof ring is fixed on the pipeline flange through the inner small flange and the bolt and nut assembly;
[0007] The pressing plate flange is composed of four pieces evenly divided by 90°.
[0008] After adopting the present utility model, by using the flexible waterproof ring, the ability of the through-wall pipeline to adapt to uneven settlement is increased, the damage to the through-wall pipeline caused by uneven settlement of adjacent buildings is avoided, and the safety of the pipeline and the valve well is ensured. It can be used as a completely new type of method for the through-wall of rigid pipelines. Further, by using the method of piecemeal installation of the pressing plate flange, the convenience and reliability of installation are ensured. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic structural diagram of the present utility model;
[0010] Figure 2 It is a schematic structural diagram of the pressing plate flange. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0011] See Figure 1 , Figure 2 As shown, a through-wall waterproof sleeve adapted to the uneven settlement of adjacent buildings includes a pre-embedded sleeve 1, a flexible waterproof ring 2 and fasteners. The pre-embedded sleeve 1 is fixed in the hole of the adjacent building 3. The through-wall rigid pipeline 4 passes through the waterproof sleeve 5 on the building on the water inlet side and then passes through the pre-embedded sleeve 1. The flexible waterproof ring 2 is arranged between the through-wall rigid pipeline 4 and the pre-embedded sleeve 1 and is fixed by fasteners. The flexible waterproof ring is arranged between the rigid pipeline and the wall. The flexible waterproof ring 2 is fastened to the through-wall rigid pipeline 5 and the wall by means of flange connection. By utilizing the elastic and prototype-restoring characteristics of the flexible waterproof ring 2, damage to the pipeline caused by uneven settlement of adjacent buildings is prevented.
[0012] The fasteners include a sleeve flange 6, a pipeline flange 7, a pressing plate flange and a bolt-nut assembly 8. The pressing plate flange includes an outer large flange 9 and an inner small flange 10. The sleeve flange 6 is welded and fixed to the pre-embedded sleeve 1. The pipeline flange 7 is welded and fixed to the through-wall rigid pipeline 4. The outer ring of the flexible waterproof ring 2 is fixed to the sleeve flange 6 through the outer large flange 9 and the bolt-nut assembly 8. The inner ring of the flexible waterproof ring 2 is fixed to the pipeline flange 7 through the inner small flange 10 and the bolt-nut assembly 8. In order to ensure the connection reliability, double nuts are used.
[0013] The pressing plate flange is composed of four pieces evenly divided by 90°, which can realize piecemeal installation to ensure the flange in place and improve the installation convenience at the same time; the material of the flexible waterproof ring 2 is a polyester fiber woven inner-reinforced TPO waterproof coiled material, with excellent waterproof performance and resilience performance.
[0014] In the present utility model, according to the pipe diameter and the corrosiveness of the soil or water quality in contact, other specifications or materials can be adopted, or it can also be determined according to the requirements of the "Code for Design of Outdoor Water Supply" (GB50013-2006), the "Code for Design of Structures of Water Supply and Drainage Pipeline Engineering" (GB50332-2002), and the "Code for Design of Buried Steel Pipe Pipeline Structures in Water Supply and Drainage Engineering" (CECS141:2002).
[0015] In summary, the wall-penetrating waterproof casing provided by the present utility model solves the problem of pipeline damage caused by uneven settlement due to the lack of construction space for installing flexible pipe joints between adjacent buildings with very small spacing in existing traditional waterproof casings, effectively ensures the safe operation of the pipeline, extends the service life of the pipeline, and is easy to promote and use.
Claims
1. A wall-piercing waterproof casing adapted to the uneven settlement of adjacent buildings, characterized in that, It includes a pre-embedded casing, a flexible waterproof ring and fasteners. The pre-embedded casing is fixed in the hole of an adjacent building, and a rigid pipe passing through the wall passes through the pre-embedded casing. The flexible waterproof ring is arranged between the rigid pipe passing through the wall and the pre-embedded casing and is fixed by fasteners.
2. The wall-piercing waterproof casing for adapting to uneven settlement of adjacent buildings according to claim 1, characterized in that, The fasteners include a casing flange, a pipe flange, a pressing plate flange and a bolt and nut assembly. The pressing plate flange includes an outer large flange and an inner small flange. The casing flange is welded and fixed on the pre-embedded casing, the pipe flange is welded and fixed on the rigid pipe passing through the wall, the outer ring of the flexible waterproof ring is fixed on the casing flange through the outer large flange and the bolt and nut assembly, and the inner ring of the flexible waterproof ring is fixed on the pipe flange through the inner small flange and the bolt and nut assembly.
3. A wall-piercing waterproof casing adapted to the uneven settlement of adjacent buildings according to claim 1, characterized in that, The pressing plate flange is composed of four pieces evenly divided by 90°.