Building water supply and drainage silencing through-wall pipe
By using a combination of sound insulation cotton layer and universal ball damper in the building's water supply and drainage pipes, the problem of water flow and vibration noise propagation on the walls was solved, achieving sound absorption and vibration reduction effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-20
AI Technical Summary
The noise from water flow and pipe vibration at the wall penetration points of existing building water supply and drainage pipes can easily propagate through the walls, affecting the quality of the indoor acoustic environment.
A sound-absorbing through-wall pipe for building water supply and drainage was designed. It uses first and second sound-insulating cotton layers to absorb water flow noise, and uses a combination structure of universal ball and spring damper for shock absorption and buffering to reduce vibration noise transmission.
It effectively reduces the transmission of water flow noise to the wall, minimizes noise propagation through the wall, and provides good buffering for the vibration of water flow through the pipe, reducing vibration noise between the outer pipe and the wall.
Smart Images

Figure CN224017889U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of wall penetration pipe technology, specifically relating to a sound-absorbing wall penetration pipe for building water supply and drainage. Background Technology
[0002] Building water supply and drainage pipes are an important part of building facilities, undertaking key functions such as water supply and drainage. Their reasonable design and maintenance are crucial to the normal use and safety of buildings. The wall penetration structure of building water supply and drainage pipes is a key link in building water and electricity engineering, and its sound insulation and vibration reduction performance directly affects the quality of indoor sound environment.
[0003] In existing technologies, the sound of water flow and pipe vibration is transmitted to the wall through the wall of water supply and drainage pipes, and then spreads to other locations through the wall, causing people in the surrounding rooms to be easily disturbed by such noise. To address this, we propose a noise-reducing wall-penetrating pipe for building water supply and drainage. Utility Model Content
[0004] To address the above problems, the purpose of this utility model is to provide a building water supply and drainage noise-reducing through-wall pipe that greatly reduces the water flow noise transmitted to the wall, thereby preventing excessive noise from propagating through the wall and playing a noise-reducing role. At the same time, it plays a good buffering role on the vibration of water flow through the pipe, greatly reducing the vibration transmitted to the outer and inner pipe bodies, thereby significantly reducing the noise generated by vibration between the outer pipe body and the wall.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a sound-absorbing through-wall pipe for building water supply and drainage, comprising a wall body, wherein a through-wall pipe installation hole is provided between the two side walls of the wall body, an outer pipe body is inserted and installed inside the through-wall pipe installation hole, a first positioning plate is provided at one end of the outer pipe body, and an external thread is provided on the outer side of the other end of the outer pipe body, the external thread is threadedly connected to an internal threaded ring plate, and a second positioning plate is sleeved on the outer side of the internal threaded ring plate. A first sound-insulating cotton layer is provided inside the outer pipe body, an inner pipe body is provided inside the first sound-insulating cotton layer, a first universal ball mounting seat is installed inside the inner pipe body, a first universal ball is rotatably mounted inside the first universal ball mounting seat, one end of the first universal ball is connected to a first spring damper, the other end of the first spring damper is connected to a second universal ball, the outer side of the second universal ball is rotatably connected to a second universal ball mounting seat, one end of the second universal ball mounting seat is fixed to a water flow pipe, and a second sound-insulating cotton layer is provided between the inner pipe body and the water flow pipe.
[0006] The beneficial effects of this utility model are as follows: During use, when water flows through the inside of the water pipe, the noise transmitted to the water pipe is absorbed by the first and second sound insulation cotton layers, thereby greatly reducing the water noise transmitted to the wall and preventing excessive noise from propagating through the wall, thus playing a soundproofing role. At the same time, due to the installation of the first universal ball mounting base, the first universal ball, the first spring damper, the second universal ball, and the second universal ball mounting base, the water pipe can be damped when water flows through. Under the multi-directional rotation function between the first universal ball mounting base and the first universal ball, and the multi-directional rotation function between the second universal ball and the second universal ball mounting base, the first spring damper can adaptively rotate according to different vibration directions and can adaptively extend and retract with the swing of the water pipe, playing a good buffering role for the vibration of the water pipe, greatly reducing the vibration transmitted to the outer and inner pipe bodies, thereby greatly reducing the noise generated by vibration between the outer pipe body and the wall.
[0007] To prevent the second positioning plate from rubbing hard against the wall when it comes into contact with the wall:
[0008] As a further improvement to the above technical solution: the outer side of the internal threaded ring plate is provided with a limiting guide rail, and the inner side of the second positioning plate is provided with a sliding groove, and the limiting guide rail and the sliding groove are slidably connected.
[0009] The beneficial effects of this improvement are as follows: Since the internal threaded ring plate and the second positioning plate are rotatably connected through the limiting guide rail and the sliding groove, there will be no hard friction between the second positioning plate and the wall surface when the second positioning plate contacts the wall surface, thus avoiding wear on the paint surface of the wall and noise generated during the installation process.
[0010] To ensure the water flows through the pipe and is securely connected to the water supply and drainage pipes at both ends:
[0011] As a further improvement to the above technical solution: flanges are provided at both ends of the water flow pipe.
[0012] The beneficial effect of this improvement is that the flange is used to connect and fix the two ends of the water flow pipe to the water supply and drainage pipe.
[0013] To facilitate rotation of the internally threaded ring plate:
[0014] As a further improvement to the above technical solution: a rotating handle is fixedly installed on the outer side of the internal threaded ring plate.
[0015] The beneficial effect of this improvement is that the rotating handle is designed to facilitate the rotation of the internal threaded ring plate.
[0016] In order to seal the inside of the inner tube 11:
[0017] As a further improvement to the above technical solution: an annular ring plate is fitted on the outside of the water flow pipe and a support plate is fixedly installed thereon. A second spring damper is connected between the annular ring plate and the support plate. An integrally formed sealing plate is fixedly installed on the inner side of both ends of the outer pipe body.
[0018] The beneficial effects of this improvement are: the second spring damper can keep the annular plate and the sealing plates at both ends of the inner tube in a tight state, preventing foreign objects from entering, and at the same time preventing the sealing plates from colliding with the sealing plates and causing noise as the water flows through the pipe.
[0019] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the isometric structure of this utility model;
[0021] Figure 2 This is an isometric sectional view of the present invention;
[0022] Figure 3 This is a front sectional view of the present invention;
[0023] Figure 4 This is an enlarged schematic diagram of part A of this utility model;
[0024] Figure 5 This is a side sectional view of the present invention;
[0025] In the diagram: 1. Wall; 2. Through-wall pipe mounting hole; 3. Outer pipe body; 4. First positioning plate; 5. External thread; 6. Internal thread ring plate; 7. Limiting guide rail; 8. Second positioning plate; 9. Slide groove; 10. First sound insulation cotton layer; 11. Inner pipe body; 12. First universal ball mounting seat; 13. First universal ball; 14. First spring damper; 15. Second universal ball; 16. Second universal ball mounting seat; 17. Water flow pipe; 18. Flange; 19. Second sound insulation cotton layer; 20. Annular ring plate; 21. Second spring damper; 22. Support plate; 23. Rotating handle; 24. Sealing plate. Detailed Implementation
[0026] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.
[0027] like Figure 1-5As shown, a sound-absorbing through-wall pipe for building water supply and drainage includes a wall 1. A through-wall pipe installation hole 2 is provided between the two side surfaces of the wall 1. An outer pipe body 3 is inserted and installed inside the through-wall pipe installation hole 2. One end of the outer pipe body 3 is provided with a first positioning plate 4, and the other end of the outer pipe body 3 is provided with an external thread 5. The external thread 5 is threadedly connected to an internal threaded ring plate 6. A second positioning plate 8 is sleeved on the outside of the internal threaded ring plate 6. A first sound-insulating cotton layer 10 is provided inside the outer pipe body 3, and an inner pipe body 11 is provided inside the first sound-insulating cotton layer 10. The inner tube 11 is equipped with a first universal ball mount 12, and a first universal ball 13 is rotatably mounted on the inner side of the first universal ball mount 12. One end of the first universal ball 13 is connected to a first spring damper 14, and the other end of the first spring damper 14 is connected to a second universal ball 15. The outer side of the second universal ball 15 is rotatably connected to a second universal ball mount 16. One end of the second universal ball mount 16 is fixed to a water flow pipe 17. A second sound insulation cotton layer 19 is provided between the inner tube 11 and the water flow pipe 17.
[0028] During use, as water flows through the water passage pipe 17, the first sound insulation layer 10 and the second sound insulation layer 19 work together to absorb the noise transmitted to the water passage pipe 17, thereby greatly reducing the water noise transmitted to the wall and preventing excessive noise from propagating through the wall, thus achieving a soundproofing effect. Simultaneously, the installation of the first universal ball mount 12, the first universal ball 13, the first spring damper 14, the second universal ball 15, and the second universal ball mount 16 provides vibration damping for the water passage pipe 17 as water flows through. Under the multi-directional rotation function between the first universal ball mount 12 and the first universal ball 13, and the multi-directional rotation function between the second universal ball 15 and the second universal ball mount 16, the first spring damper 14 can adaptively rotate according to different vibration directions, and can adaptively extend and retract according to the swing of the water flow through the pipe 17, which plays a good buffering role on the vibration of the water flow through the pipe 17, greatly reducing the vibration transmitted to the outer pipe body 3 and the inner pipe body 11, thereby greatly reducing the noise generated by vibration between the outer pipe body 3 and the wall.
[0029] The outer side of the internal threaded ring plate 6 is provided with a limiting guide rail 7, and the inner side of the second positioning plate 8 is provided with a sliding groove 9. The limiting guide rail 7 and the sliding groove 9 are slidably connected.
[0030] Since the internal threaded ring plate 6 and the second positioning plate 8 are rotatably connected by the limiting guide rail 7 and the slide groove 9, the second positioning plate 8 will not have hard friction with the wall when it contacts the wall, thus avoiding wear on the paint surface of the wall and noise during installation.
[0031] Flanges 18 are provided at both ends of the water flow pipe 17.
[0032] Flange 18 is used to connect and fix the two ends of pipe 17 to water supply and drainage pipes.
[0033] A rotating handle 23 is fixedly installed on the outer side of the internal threaded ring plate 6.
[0034] The rotating handle 23 is designed to facilitate the rotation of the internal threaded ring plate 6.
[0035] The water flows through the outer side of the pipe 17, which is fitted with an annular plate 20 and a support plate 22. A second spring damper 21 is connected between the annular plate 20 and the support plate 22. An integrally formed sealing plate 24 is fixedly installed on the inner side of both ends of the outer pipe 3.
[0036] The second spring damper 21 can keep the annular plate 20 and the sealing plates 24 at both ends of the inner tube 11 in a tight state, preventing foreign objects from entering, and at the same time preventing the sealing plates 24 from colliding with the pipe 17 as the water flows through, causing noise.
[0037] The working principle and usage process of this utility model are as follows: When using this device, the end of the outer tube 3 with the external thread 5 is passed through the through-wall pipe mounting hole 2. Then, the internal threaded ring plate 6 is threadedly connected to the external thread 5. The internal threaded ring plate 6 is rotated to bring the second positioning plate 8 close to one side of the wall 1 until the second positioning plate 8 contacts the wall. Since the internal threaded ring plate 6 and the second positioning plate 8 are rotatably connected by the limiting guide rail 7 and the sliding groove 9, no hard friction will occur between the second positioning plate 8 and the wall when they contact the wall, thus avoiding damage to the paint on the wall. Wear and tear on the surface and noise generated during installation are common problems. After fixing the outer pipe body 3, the two ends of the water flow through pipe 17 can be connected to the water supply and drainage pipes through flanges 18. After the connection is completed, it can be put into use. During use, when the water flows through the inside of the water flow through pipe 17, the noise transmitted to the water flow through pipe 17 is absorbed by the first sound insulation cotton layer 10 and the second sound insulation cotton layer 19, thereby greatly reducing the water flow noise transmitted to the wall and preventing excessive noise from spreading through the wall, thus playing a role in sound insulation. Simultaneously, due to the installation of the first universal ball mount 12, the first universal ball 13, the first spring damper 14, the second universal ball 15, and the second universal ball mount 16, it can dampen the water flow through the pipe 17 when water flows through. Under the multi-directional rotation function between the first universal ball mount 12 and the first universal ball 13, and between the second universal ball 15 and the second universal ball mount 16, the first spring damper 14 can adaptively rotate according to different vibration directions, and can also adapt to different vibration directions. The water flow adapts to the swing of the pipe 17, which effectively buffers the vibration of the water flow through the pipe 17, greatly reducing the vibration transmitted to the outer pipe 3 and the inner pipe 11. This significantly reduces the noise generated by the vibration between the outer pipe 3 and the wall. At the same time, the second spring damper 21 keeps the annular plate 20 and the sealing plates 24 at both ends of the inner pipe 11 in a tight state, preventing foreign objects from entering and preventing the sealing plates 24 from colliding with the pipe 17 and causing noise as the water flows through the pipe 17.
[0038] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.
[0039] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0040] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.
Claims
1. A sound-absorbing through-wall pipe for building water supply and drainage, characterized in that: The system includes a wall (1), with a through-wall pipe installation hole (2) extending between the two sides of the wall (1). An outer tube (3) is inserted into the inner side of the through-wall pipe installation hole (2). One end of the outer tube (3) is provided with a first positioning plate (4), and the other end of the outer tube (3) is provided with an external thread (5). The external thread (5) is threadedly connected to an internal threaded ring plate (6). A second positioning plate (8) is fitted on the outer side of the internal threaded ring plate (6). The inner side of the outer tube (3) is provided with a first sound insulation cotton layer (10), and the inner side of the first sound insulation cotton layer (10) is provided with an inner tube (11). (11) is equipped with a first universal ball mount (12) on its inner side. A first universal ball (13) is rolled on the inner side of the first universal ball mount (12). One end of the first universal ball (13) is connected to a first spring damper (14). The other end of the first spring damper (14) is connected to a second universal ball (15). The outer side of the second universal ball (15) is rolled on the second universal ball mount (16). One end of the second universal ball mount (16) is fixed to a water flow pipe (17). A second sound insulation cotton layer (19) is provided between the inner tube body (11) and the water flow pipe (17).
2. The sound-absorbing through-wall pipe for building water supply and drainage according to claim 1, characterized in that: The outer side of the internal threaded ring plate (6) is provided with a limiting guide rail (7), and the inner side of the second positioning plate (8) is provided with a sliding groove (9). The limiting guide rail (7) and the sliding groove (9) are slidably connected.
3. The sound-absorbing through-wall pipe for building water supply and drainage according to claim 1, characterized in that: The water flows through the pipe (17), both ends of which are equipped with flanges (18).
4. The sound-absorbing through-wall pipe for building water supply and drainage according to claim 1, characterized in that: A rotating handle (23) is fixedly installed on the outer side of the internal threaded ring plate (6).
5. A sound-absorbing through-wall pipe for building water supply and drainage according to claim 1, characterized in that: The water flows through the outer side of the pipe (17) and is fitted with an annular ring plate (20) and a support plate (22) is fixedly installed. A second spring damper (21) is connected between the annular ring plate (20) and the support plate (22). An integrally formed sealing plate (24) is fixedly installed on the inner side of both ends of the outer pipe body (3).