Drainage noise reduction structure of drainage pipe
By installing damping sheets, sound insulation cotton, and microporous layers on the outside of the drainage pipe, and installing inclined baffles and vibration damping components on the inside, the noise and vibration problems of the drainage pipe are solved, achieving efficient noise reduction and vibration reduction, and improving the stability and durability of the drainage pipe.
Patent Information
- Application Number
- CN202520494693.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-20
AI Technical Summary
The noise generated by existing drainage pipes during the drainage process is difficult to reduce effectively, and may also affect drainage function and pipe life. In addition, the installation is complicated and the maintenance cost is high.
Damping sheets, sound insulation cotton, and a first microporous layer are installed on the outside of the drainage pipe, and a second microporous layer and an inclined baffle are installed on the inside. Combined with vibration damping components, including elastic expansion joints, buffer pads, and rubber layers, a multi-layer noise reduction and vibration damping structure is formed.
It significantly reduces noise transmission, minimizes turbulence and vibration, improves the stability and durability of drainage pipes, and ensures that drainage function is not affected.
Smart Images
Figure CN223855161U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of drainage pipe drainage noise reduction structure, belong to drainage pipe field. BACKGROUND
[0002] In modern urban construction and industrial facilities, the noise problem of drainage system is increasingly concerned. Due to the impact of water flow and turbulent phenomenon, the drainage pipeline often produces a lot of noise during the drainage process, which not only affects the quietness of the surrounding environment, but also may cause potential vibration damage to the building structure. Especially in high-rise buildings, hospitals, schools and other noise-sensitive areas, the problem of drainage noise is particularly prominent.
[0003] The noise reduction method mainly includes wrapping sound insulation material on the outer wall of the pipeline or adding silencer, etc., but these methods often have the problems of poor noise reduction effect, complex installation, high maintenance cost, etc. In addition, some methods may also affect the normal drainage function of the pipeline, and even reduce the service life of the pipeline. Therefore, it is particularly important to develop a drainage pipe drainage noise reduction structure that can effectively reduce noise without affecting the drainage function. SUMMARY
[0004] (I) Technical problems solved
[0005] In view of the shortcomings of the prior art, the utility model provides a drainage pipe drainage noise reduction structure, which has the advantages of high efficiency, high stability and durability.
[0006] (II) Technical solutions
[0007] In order to achieve the above-mentioned high efficiency, high stability and durability, the utility model provides the following technical solutions: a drainage pipe drainage noise reduction structure, comprising an outer frame and a pipeline body, the outer side of the pipeline body is fixedly connected with a damping sheet, the outer side of the damping sheet is fixedly connected with sound insulation cotton, the outer side of the sound insulation cotton is fixedly connected with a first microporous layer, the inner side of the outer frame is provided with a vibration absorbing assembly for absorbing vibration;
[0008] The vibration absorbing assembly comprises mounting grooves respectively formed in the left inner side wall and the right inner side wall of the outer frame, buffer pads fixedly connected to the inner side of the mounting grooves, elastic expansion pieces respectively fixedly connected to the opposite side walls of the left and right buffer pads, an inner frame fixedly connected between the opposite ends of the left and right elastic expansion pieces, and a rubber layer fixedly connected to the inner side wall of the inner frame.
[0009] Further, the inner side wall of the pipeline body is fixedly connected with a second microporous layer, and the inner side wall of the second microporous layer is fixedly connected with a plurality of inclined baffles.
[0010] Further, the inclination angle of the inclined baffles decreases linearly along the direction from the water inlet to the water outlet of the pipeline body.
[0011] Further, the pipeline body is fixedly connected to the inner side of the inner frame, and the first microporous layer of the pipeline body is in contact with the inner wall of the rubber layer.
[0012] Further, the number of the elastic stretchers on the left and right sides is four, and the four elastic stretchers on the left side are fixedly connected to the four corners of the right side wall of the left side buffer pad block, and the four elastic stretchers on the right side are fixedly connected to the four corners of the left side wall of the right side buffer pad block.
[0013] Further, the top and bottom of the inner frame are fixedly connected with the supporting plates, the inner side of the supporting plate is provided with a sliding hole, and the sliding hole is slidably connected with a supporting rod.
[0014] Further, the left end of the supporting rod is fixedly connected with the inner left side wall of the outer frame, and the right end of the supporting rod is fixedly connected with the inner right side wall of the outer frame.
[0015] Further, the surfaces of the outer frame, the pipeline body and the inner frame are coated with an anti-corrosion coating.
[0016] (Three) beneficial effects
[0017] Compared with the prior art, the utility model provides a drainage pipe drainage noise reduction structure has the following beneficial effects:
[0018] The drainage pipe drainage noise reduction structure, through setting up the damping sheet, the soundproofing cotton and the first microporous layer successively on the outer side of the pipeline body and setting up the second microporous layer and the inclined baffle on the inner side, forms multiple noise reduction barriers, these structures can absorb and disperse the sound wave produced by water flow impact, significantly reduce the propagation of noise, at the same time, the linear reduction angle design of the inclined baffle guides the water flow to form spiral flow, further reduces the turbulent flow and impact noise, in addition, the design of the vibration damping assembly includes elastic stretchers, buffer pad blocks, inner frames and rubber layers, forms double damping structure, these structures can absorb and isolate the vibration produced by the pipeline due to water flow impact, effectively prevent the vibration from being transmitted to the surrounding environment and building structure, reduce noise transmission. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is the structure schematic diagram of the utility model;
[0020] Figure 2 It is the perspective view of the outer frame in the structure of the utility model;
[0021] Figure 3 It is the perspective view of the inner frame in the structure of the utility model;
[0022] Figure 4 It is the front schematic diagram of the utility model.
[0023] In the figure: 1, outer frame; 2, pipeline body; 3, damping sheet; 4, sound insulation cotton; 5, first microporous layer; 6, mounting groove; 7, buffer pad; 8, elastic expansion piece; 9, inner frame; 10, rubber layer; 11, second microporous layer; 12, inclined baffle; 13, support plate; 14, support rod. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0025] Please refer to Figures 1 to 4 The utility model provides a kind of technical solutions: a drainage pipe drainage noise reduction structure, including outer frame 1 and pipeline body 2, the outer side of pipeline body 2 is fixedly connected with damping sheet 3, the outer side of damping sheet 3 is fixedly connected with sound insulation cotton 4, the outer side of sound insulation cotton 4 is fixedly connected with first microporous layer 5, the inner side of outer frame 1 is provided for absorbing vibration buffer assembly.
[0026] As Figure 1 Indicated, buffer assembly includes respectively opening in left side wall and inner right side wall of outer frame 1 mounting groove 6, fixedly connected in the inner side of mounting groove 6 buffer pad 7, respectively fixedly connected in the opposite side wall of left and right two sides buffer pad 7 elastic expansion piece 8, fixedly connected between the opposite end of left and right two sides elastic expansion piece 8 inner frame 9 and fixedly connected in the inner side wall of inner frame 9 rubber layer 10.
[0027] It needs to be explained that the inner side wall of pipeline body 2 is fixedly connected with second microporous layer 11, and the micro-porous structure can effectively absorb the sound wave generated by water flow impact, reduce noise propagation, the inner side wall of second microporous layer 11 is fixedly connected with several inclined baffles 12, the inclination angle of inclined baffle 12 linearly decreases along the direction of water inlet to water outlet of pipeline body 2, reduces the direct collision of water flow and pipe wall by inclined baffle 12, so as to reduce turbulent noise, by linearly reducing inclination angle, water flow in the pipe is more stable, further reduces the noise generated by water flow impact and turbulent flow.
[0028] Pipeline body 2 is fixedly connected to the inner side of inner frame 9, and the first microporous layer 5 of pipeline body 2 is in contact with the inner wall of rubber layer 10, the first microporous layer 5 and the inner wall of rubber layer 10 are in close contact, forming a double damping structure.
[0029] The number of the elastic expansion pieces 8 on the left and right sides is four respectively. The four elastic expansion pieces 8 on the left side are fixedly connected to the four corners of the right side wall of the left side buffer pad 7 respectively, and the four elastic expansion pieces 8 on the right side are fixedly connected to the four corners of the left side wall of the right side buffer pad 7 respectively. The buffer pad 7 is made of high-density foam material, which further enhances the damping effect.
[0030] The top and bottom of the inner frame 9 are fixedly connected with the support plates 13. The inner side of the support plate 13 can provide stable support between the outer frame 1 and the inner frame 9. The inner side of the sliding hole is slidably connected with the support rod 14. The left end of the support rod 14 is fixedly connected with the inner left side wall of the outer frame 1, and the right end of the support rod 14 is fixedly connected with the inner right side wall of the outer frame 1. The sliding connection design of the support rod 14 and the sliding hole allows the inner frame 9 to slightly displace when it is vibrated, thereby further absorbing vibration energy and reducing noise transmission.
[0031] The surfaces of the outer frame 1, the pipeline body 2 and the inner frame 9 are coated with an anti-corrosion coating made of epoxy resin or polyurethane material with a thickness of 0.1mm to 0.3mm, which can effectively prevent water vapor, chemicals and microorganisms from eroding the structure and prolong the service life of the device.
[0032] The working principle of the above embodiment is as follows:
[0033] After the water flow enters the pipeline body 2, it first contacts the second microporous layer 11, which absorbs the high-frequency sound waves generated by the water flow impact. Then, the water flow passes through the inclined baffle 12, which guides the water flow to form a spiral flow by the linearly decreasing angle design, thereby reducing turbulent flow and impact noise.
[0034] The vibration of the pipeline body 2 caused by the water flow impact is absorbed by the double damping structure of the first microporous layer 5 and the rubber layer 10. The first microporous layer 5 absorbs high-frequency vibration, and the rubber layer 10 absorbs low-frequency vibration, effectively isolating vibration transmission.
[0035] The vibration of the pipeline body 2 is further absorbed by the elastic expansion piece 8 and the buffer pad 7. The elastic deformation of the elastic expansion piece 8 absorbs vibration energy, and the flexible material of the buffer pad 7 reduces vibration transmission to the outer frame 1. At the same time, the inner frame 9 is connected with the outer frame 1 through the support plate 13 and the support rod 14. The sliding connection design of the support rod 14 allows the inner frame 9 to slightly displace when it is vibrated, thereby further absorbing vibration energy and reducing noise transmission.
[0036] It is to be understood that the terms "including", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.
[0037] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.
Claims
1. A drain pipe drainage noise reduction structure comprising an outer frame (1) and a pipe body (2), characterized in that: The outer side of the pipeline body (2) is fixedly connected with a damping sheet (3), the outer side of the damping sheet (3) is fixedly connected with sound insulation cotton (4), the outer side of the sound insulation cotton (4) is fixedly connected with a first microporous layer (5), and the inner side of the outer frame (1) is provided with a vibration absorbing assembly for absorbing vibration. The vibration absorbing assembly comprises mounting grooves (6) respectively formed in the inner left side wall and the inner right side wall of the outer frame (1), buffer pads (7) fixedly connected to the inner sides of the mounting grooves (6), elastic expansion members (8) respectively fixedly connected to opposite side walls of the left and right buffer pads (7), an inner frame (9) fixedly connected between opposite ends of the left and right elastic expansion members (8), and a rubber layer (10) fixedly connected to the inner side wall of the inner frame (9).
2. The drain pipe drainage noise reduction structure according to claim 1, characterized by: The inner side wall of the pipeline body (2) is fixedly connected with a second microporous layer (11), and the inner side wall of the second microporous layer (11) is fixedly connected with a plurality of inclined baffles (12).
3. The drain pipe drainage noise reduction structure according to claim 2, characterized by: The inclination angle of the inclined baffles (12) linearly decreases along the direction from the water inlet to the water outlet of the pipeline body (2).
4. The drain pipe drainage noise reduction structure according to claim 1, characterized by: The pipeline body (2) is fixedly connected to the inner side of the inner frame (9), and the first microporous layer (5) of the pipeline body (2) is in contact with the inner wall of the rubber layer (10).
5. The drain pipe drainage noise reduction structure according to claim 1, characterized by: The number of the left and right elastic expansion members (8) is four, and the left four elastic expansion members (8) are respectively fixedly connected to the four corners of the right side wall of the left buffer pad (7), and the right four elastic expansion members (8) are respectively fixedly connected to the four corners of the left side wall of the right buffer pad (7).
6. The drain pipe drainage noise reduction structure according to claim 1, characterized by: The top and bottom of the inner frame (9) are fixedly connected with support plates (13), the inner side of the support plate (13) is provided with a sliding hole, and the inner side of the sliding hole is slidingly connected with a support rod (14).
7. The drain pipe drainage noise reduction structure according to claim 6, characterized by: The left end of the support rod (14) is fixedly connected to the inner left side wall of the outer frame (1), and the right end of the support rod (14) is fixedly connected to the inner right side wall of the outer frame (1).
8. The drain pipe drainage noise reduction structure according to claim 1, characterized by: The surfaces of the outer frame (1), the pipeline body (2) and the inner frame (9) are coated with an anti-corrosion coating.