CN211925057U

CN211925057U - Noise reduction pipeline

Info

Publication number: CN211925057U
Application number: CN201922465335.1U
Authority: CN
Inventors: 欧坤; 朱文; 叶津磊; 姚子明
Original assignee: Wuhan Hongsen Environmental Protection Technology Engineering Co ltd
Current assignee: Wuhan Hongsen Environmental Protection Technology Engineering Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-13
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to the field of noise reduction equipment, and discloses a noise reduction pipeline which comprises a pipeline body, wherein a plurality of buffer pieces are distributed in an inner cavity of the pipeline body at intervals from front to back; the buffer piece is elastic piece or software, includes: the fixed end is fixed on the inner side wall of the pipeline body, and the movable end opposite to the fixed end is arranged in the inner cavity. The utility model provides a pair of noise reduction pipe has solved among the prior art technical problem that the pipeline produced the noise because of the impact of air current or rivers.

Description

Noise reduction pipeline

Technical Field

The utility model relates to an equipment of making an uproar especially relates to a pipeline of making an uproar falls.

Background

In a world with sound, the excessive sound around the house becomes noise, every family has a water pipeline, the drainage sound in daily drainage pipes is one of noise sources, the noise causes people to be upset, disoriented, urgent and irritable, damages hearing and influences the cardiovascular and nervous systems of people, especially middle and high-rise buildings, and when people are quiet at night, people wake up from sweet dreams, influence sleeping, learning, working and the like, and the harm brought to people is well known. The noise emitted by the drainage system is mainly caused by 3 forms, namely noise generated by vibration of the pipeline caused by water flow in the drainage pipeline impacting the pipe wall, noise generated by rapid air compression caused by water flow in the drainage pipeline and sound generated by water flowing in the drainage pipeline. Therefore, in designing noise reduction ducts, in addition to sound insulation, reducing the noise generated by the duct due to impact vibration is also a necessary measure for noise reduction of the duct.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims at providing a noise reduction pipeline in order to solve the technical problem that the pipeline produces the noise because of the impact of air current or rivers among the prior art.

(II) technical scheme

In order to solve the technical problem, the utility model provides a noise reduction pipeline, which comprises a pipeline body, wherein a plurality of buffer pieces are distributed in an inner cavity of the pipeline body at intervals from front to back; the buffer piece is elastic piece or software, includes: the fixed end is fixed on the inner side wall of the pipeline body, and the movable end opposite to the fixed end is arranged in the inner cavity.

Further, the buffer pieces are distributed on the inner side wall of the pipeline body in a vertically staggered mode.

Further, the buffer sheet includes: the fixed end of the upper buffer sheet is fixed above the inner side wall of the pipeline body, and the fixed end of the lower buffer sheet is fixed below the inner side wall of the pipeline body; each lower buffer sheet is arranged between two adjacent upper buffer sheets.

Furthermore, a first movable ring groove for the movable end of the upper buffer sheet to swing back and forth is formed in the inner side wall of the pipeline body; the inside wall of pipeline body is provided with the confession the activity end fore-and-aft swing's of lower buffer plate second activity annular.

Further, the groove width of the first movable ring groove is greater than or equal to the limit moving distance of the movable end of the upper buffer sheet; the groove width of the second movable ring groove is larger than or equal to the limit moving distance of the movable end of the lower buffer sheet.

Further, a plurality of axial through holes which are uniformly distributed in the circumferential direction at equal intervals are formed in the pipeline body.

Furthermore, the pipeline body is externally provided with a damping layer, a porous material sound absorption layer, a hollow layer and an acoustically opaque thin layer in sequence.

Further, the porous material sound absorption layer is made of PVC foaming materials, and the sound-tight thin layer is one of asphalt paper, a thin aluminum plate and a galvanized sheet iron.

Further, the buffer sheet is made of a flexible rubber material.

Further, the buffer sheet is rectangular, fan-shaped or triangular.

(III) advantageous effects

The utility model provides a pair of noise reduction pipe, through set up a plurality of buffering pieces that have elasticity or flexibility in the pipeline, can cushion rivers or the air current in the pipeline on the one hand, avoid arousing the quick compression of intraductal air and the noise that produces, on the other hand can reduce the impact force of rivers or air current to the pipe wall to avoid arousing pipeline vibration and produce the noise.

Drawings

Fig. 1 is a schematic side view of an embodiment of a noise reduction duct according to the present invention;

fig. 2 is a schematic front structural view of an embodiment of the noise reduction duct of the present invention;

fig. 3 shows a schematic structural diagram of a water impact buffer sheet according to an embodiment of the noise reduction duct of the present invention.

Wherein:

1: a pipe body; 2: a through hole; 3: a damping layer;

4: a sound absorbing layer of porous material; 5: a hollow layer; 6: an acoustically opaque layer;

7: a flow of water; 11: an upper buffer sheet; 12: a lower buffer sheet;

1 a: a fixed end; 1 b: a movable end.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 shows a schematic side view of an embodiment of a noise reduction duct according to the present invention; fig. 2 is a schematic front view of an embodiment of a noise reduction duct according to the present invention; fig. 3 shows a schematic structural diagram of a water impact buffer sheet according to an embodiment of the noise reduction duct of the present invention. As shown in fig. 1-3, the noise reduction pipeline comprises a pipeline body 1, wherein a plurality of buffer sheets are distributed in an inner cavity of the pipeline body 1 from front to back at intervals; the buffer piece is elastic piece or software, includes: fix the stiff end 1a of pipeline body inside wall, and arrange the inner chamber in with the expansion end 1b that the stiff end is relative.

Wherein, the buffer sheet can be made of flexible rubber material. The shape of the buffer sheet can be rectangular, fan-shaped or triangular.

Specifically, the buffer pieces are distributed on the inner side wall of the pipeline body 1 in a vertically staggered manner. The buffer sheet includes: the pipeline body 1 comprises an upper buffer sheet 11 with a fixed end 1a fixed above the inner side wall of the pipeline body 1 and a lower buffer sheet 12 with a fixed end 1a fixed below the inner side wall of the pipeline body 1; each of the lower buffer pieces 12 is disposed between two adjacent upper buffer pieces 11. The movable ends 1b of the upper buffer sheet 11 and the lower buffer sheet 12 can freely move or swing in the inner cavity of the pipeline body 1.

More specifically, the inner side wall of the pipeline body 1 is provided with a first movable ring groove for the movable end of the upper buffer sheet 11 to swing back and forth; the inner side wall of the pipeline body 1 is provided with a second movable ring groove for the movable end of the lower buffer sheet 12 to swing back and forth. The width of the first movable ring groove can be set to be larger than or equal to the limit moving distance of the movable end of the upper buffer sheet; the groove width of the second movable ring groove can be set to be larger than or equal to the limit moving distance of the movable end of the lower buffer sheet.

The utility model provides a pair of noise reduction pipe, through set up a plurality of cushion blocks that have elasticity or flexibility in the inner chamber at pipeline body 1, can cushion rivers 7 or the air current in pipeline endosome 1 on the one hand, avoid arousing the noise that intraductal air rapid compression produced, on the other hand can reduce the impact force of rivers 7 or air current to the pipe wall to avoid arousing pipeline vibration and produce the noise.

On the basis of the above embodiments, in this embodiment, a plurality of axial through holes 2 are provided in the pipe body 1, and are uniformly and equidistantly distributed in the circumferential direction. The through hole 2 arranged on the pipeline body 1 forms a hollow layer, and the transmission of noise can be further weakened.

On the basis of the above embodiments, in this embodiment, the damping layer 3, the porous material sound absorption layer 4, the hollow layer 5 and the sound-proof thin layer 6 are sequentially arranged outside the pipe body 1. The porous material sound absorption layer 4 arranged outside the pipeline body 1 can further play a role in reducing noise. The porous material sound absorption layer 4, the hollow layer 5 and the sound-proof thin layer 6 can effectively weaken the transmission of high-frequency sound waves, but for low-frequency sound waves, particularly when the wave length of the sound waves is more than about ten times of the thickness of the porous material, the pipeline and the porous material layer vibrate together, the noise reduction effect is poor, and the hidden trouble can be eliminated by arranging the damping layer 3 outside the pipeline body 1.

Specifically, the porous material sound absorption layer 4 is made of a PVC foam material, the PVC foam material is a porous polyvinyl chloride, the structure of the PVC foam material is similar to a sponge structure, and such structural characteristics can absorb noise generated when water flows circulate in the drain pipe, so as to achieve the function of noise reduction. The sound-proof thin layer 6 is one of asphalt paper, a thin aluminum plate and a galvanized sheet iron.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A noise reducing duct, characterized by: the noise reduction pipeline comprises a pipeline body, and a plurality of buffer sheets are distributed in an inner cavity of the pipeline body at intervals from front to back; the buffer piece is elastic piece or software, includes: the fixed end is fixed on the inner side wall of the pipeline body, and the movable end opposite to the fixed end is arranged in the inner cavity.

2. The noise reduction duct of claim 1, wherein: the buffer pieces are distributed on the inner side wall of the pipeline body in a vertically staggered mode.

3. The noise reduction duct of claim 2, wherein: the buffer sheet includes: the fixed end of the upper buffer sheet is fixed above the inner side wall of the pipeline body, and the fixed end of the lower buffer sheet is fixed below the inner side wall of the pipeline body; each lower buffer sheet is arranged between two adjacent upper buffer sheets.

4. The noise reduction duct of claim 3, wherein: the inner side wall of the pipeline body is provided with a first movable ring groove for the movable end of the upper buffer sheet to swing back and forth; the inside wall of pipeline body is provided with the confession the activity end fore-and-aft swing's of lower buffer plate second activity annular.

5. The noise reduction duct of claim 4, wherein: the groove width of the first movable ring groove is greater than or equal to the limit moving distance of the movable end of the upper buffer sheet; the groove width of the second movable ring groove is larger than or equal to the limit moving distance of the movable end of the lower buffer sheet.

6. A noise reducing duct according to claim 1, wherein: the pipeline is characterized in that a plurality of axial through holes which are uniformly distributed in the circumferential direction at equal intervals are formed in the pipeline body.

7. The noise reduction duct of claim 1, wherein: the pipeline body is provided with a damping layer, a porous material sound absorption layer, a hollow layer and an acoustically opaque thin layer in sequence.

8. The noise reduction duct of claim 7, wherein: the porous material sound absorption layer is made of PVC foaming materials, and the sound-tight thin layer is one of asphalt paper, a thin aluminum plate and a galvanized sheet iron.

9. A noise reducing duct according to any of claims 1-8, wherein: the buffer sheet is made of flexible rubber material.

10. A noise reducing duct according to any of claims 1-8, wherein: the buffer sheet is rectangular, fan-shaped or triangular.