CN210860254U

CN210860254U - Noise reduction device for drain pipe

Info

Publication number: CN210860254U
Application number: CN201921960734.9U
Authority: CN
Inventors: 徐运海; 张保祥; 刘莉莉; 董新美; 楚冬梅; 贾翠兰
Original assignee: Water Resources Research Institute of Shandong Province
Current assignee: Water Resources Research Institute of Shandong Province
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-06-26
Anticipated expiration: 2029-11-13

Abstract

The utility model discloses a noise reduction device for a drain pipe, which comprises a hollow inner pipe body, wherein the inner wall of the inner pipe body is provided with a plurality of water guide convex ribs which are spirally arranged along the length direction of the inner pipe body; still include the anechoic chamber, the anechoic chamber is including the casing that has the cavity, the casing with interior body is linked together, be equipped with the buffer block that has the cambered surface in the casing, the buffer block bottom is connected with hollow first permeability cell, the outside cover of first permeability cell is equipped with hollow second permeability cell, be equipped with the spring in the second permeability cell, the both ends of spring respectively with first permeability cell and second permeability cell are connected, fixedly connected with annular breakwater on the second permeability cell outer wall, annular breakwater with interior body wall links to each other. The utility model discloses reduced the noise that produces when following high-rise downward drainage, simple structure, reasonable in design, the practicality is strong.

Description

Noise reduction device for drain pipe

Technical Field

The utility model relates to a drain pipe technical field, concretely relates to device of making an uproar falls in drain pipe.

Background

Tall buildings mark the development of modern civilization, but also bring trouble to people. This is because the drainage pipe used in construction works produces noise when water is drained from a high position downwards, and the water beams collide with each other and the pipe wall in the natural falling process, and the noise produced by the drainage of the drainage pipe is larger as the number of floors increases. Especially, the noise generated when water is drained from the upper floor in the evening and the early morning seriously affects the rest and the living room peace of people. For this reason, it is necessary to develop a noise reducing device for use in a vertical drainage pipeline between floors to reduce noise generated when water is drained downward from a high floor.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the noise reduction device for the drain pipe is provided.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model discloses a noise reduction device for a drain pipe, which comprises a hollow inner pipe body, wherein the inner wall of the inner pipe body is provided with a plurality of water guide convex ribs which are spirally arranged along the length direction of the inner pipe body; still include the anechoic chamber, the anechoic chamber is including the casing that has the cavity, the casing with interior body is linked together, be equipped with the buffer block that has the cambered surface in the casing, the buffer block bottom is connected with hollow first permeability cell, the outside cover of first permeability cell is equipped with hollow second permeability cell, a plurality of second through-holes have been seted up on the second permeability cell wall, be equipped with the spring in the second permeability cell, the both ends of spring respectively with first permeability cell and second permeability cell are connected, fixedly connected with annular breakwater on the second permeability cell outer wall, annular breakwater with interior tubular body wall links to each other.

Preferably, a diversion cone is further arranged in the shell, the diversion cone is connected with the inner wall of the shell and is arranged below the second vent pipe, and the bottom of the diversion cone extends into the inner pipe body.

Preferably, the outer pipe body is concentrically sleeved outside the inner pipe body, a sound insulation layer is formed between the inner pipe body and the outer pipe body, a plurality of connecting blocks are arranged in the sound insulation layer, and two ends of each connecting block are respectively connected to the inner pipe body and the outer pipe body.

Preferably, the outer pipe body and the shell are wrapped with sound attenuation cotton.

Preferably, the first air permeable pipe wall is provided with a plurality of first through holes.

Preferably, pearl wool is arranged on the buffer block.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the spiral water guide convex ribs are arranged on the wall of the inner pipe body, so that the spiral water guide can be carried out on water flow, the sound of water flow impacting the pipe wall is reduced, and the effect of reducing noise is achieved; in addition, by arranging the silencing chamber, water flow enters the shell to play a role in overflowing, pressure reduction and speed reduction, the water flow in the cavity of the shell enters the second ventilating pipe through the second through hole or/and the first through hole and flows to the lower inner pipe body, and the water flow speed can be reduced by utilizing the plurality of first through holes and the plurality of second through holes, so that the noise generated by quick collision of the water flow is reduced;

2. by arranging the buffer block and the spring, the elastic force of the spring is utilized to provide elastic force for the buffer block, when water flow impacts the buffer block, the flow velocity of the water flow is reduced, the damping effect is provided, the water flow descending at high speed is effectively buffered, and further the noise is reduced; the buffer block is provided with the pearl cotton, and the noise can be further reduced by utilizing the advantages of water resistance, moisture resistance, shock resistance, sound insulation, flexibility and good buffer property of the pearl cotton;

3. the noise insulation layer is formed between the inner pipe body and the outer pipe body by setting the structural forms of the inner pipe body and the outer pipe body, so that the noise can be effectively reduced, and the noise can be further reduced by setting the silencing cotton outside the outer pipe body, so that the noise insulation pipe is simple and easy to implement, very practical and remarkable in effect;

4. through setting up the water conservancy diversion cone, can carry out the water conservancy diversion with the rivers that flow out from the second permeability cell, the inner wall of internal pipe body in the rivers rapid flow direction of water conservancy diversion to flow out through the protruding muscle of water guide of screw-tupe, guarantee like this that rivers flow along internal wall of pipe always, further reduced the sound of rivers striking pipe wall, reach the effect of noise reduction.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a top cross-sectional view of the present invention shown in fig. 1.

FIG. 3 is a schematic view of the annular water guard plate of FIG. 1 along the direction A-A.

Fig. 4 is a schematic structural diagram of a second embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a third embodiment of the present invention.

Fig. 6 is a top cross-sectional view of the invention of fig. 5.

Fig. 7 is a schematic structural view of the present invention in fig. 5 in a state of water flow.

Description of reference numerals:

1 an inner tube body; 2, water guide convex ribs; 3, a shell; 4, a buffer block; 41 of pearl cotton; 5 a first gas permeable tube; 51 a first through hole; 6 a second gas permeable tube; 61 a second through hole; 7, a spring; 8, an annular water baffle; 81 placing holes; 9 connecting rods; 10, a diversion cone; 11 an outer tubular body; 12 a sound insulating layer; 13, connecting blocks; 14 sound-deadening cotton.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Example one

As shown in fig. 1-3, the present embodiment provides a noise reduction device for a drain pipe, which includes a hollow inner pipe body 1, wherein a plurality of water guide ribs 2 are disposed on an inner wall of the inner pipe body 1, specifically, 6 water guide ribs 2 may be disposed, and the water guide ribs 2 are spirally disposed along a length direction of the inner pipe body 1, so as to spirally guide water flow, reduce sound generated when the water flow strikes a pipe wall, and reduce noise.

In order to further reduce noise and make an uproar, whole device still includes the anechoic chamber, the anechoic chamber is including the casing 3 that has the cavity, casing 3 is linked together with interior body 1, be equipped with buffer block 4 in casing 3, buffer block 4 supports when no rivers and leans on in the junction department of interior body 1 with casing 3, buffer block 4 bottom is connected with hollow first permeability cell 5, the outside cover of first permeability cell 5 is equipped with hollow second permeability cell 6, be equipped with spring 7 in the second permeability cell 6, spring 7's both ends respectively with the pipe wall of first permeability cell 5 and the pipe wall looks fixed connection of second permeability cell 6, fixedly connected with annular breakwater 8 on the 6 outer walls of second permeability cell, annular breakwater 8 and the 1 looks fixed connection of interior body. When carrying out the drainage, buffer block 4 is under the effect of rivers gravity and impulsive force, and buffer block 4 is pushed down, and spring 7 is pushed down to buffer block 4, and buffer block 4 no longer supports by the junction department at interior body 1 and casing 3 this moment, and rivers flow into casing 3 inside, because the existence of annular baffle 8, rivers constantly increase, when rivers submerge second permeability cell 6, rivers get into the inside cavity of second permeability cell 6 and continue downward outflow. Through setting up casing 3, can play the effect of overflow decompression deceleration, and then reduce the noise.

In order to take account of the drainage speed, the second vent pipes 6 and the first vent pipes 5 are respectively provided with a plurality of second through holes 61 and first through holes 51, water flow can flow out through the first through holes 51 and the second through holes 61, and the drainage speed is improved while noise is reduced.

The top of buffer block 4 is the arc setting, and buffer block 4 has the arcwall face, and the parcel has pearl cotton 41 on the arcwall face, utilizes pearl cotton 41 to have the dampproofing, shockproof, the good advantage of sound insulation, compliance and cushion of water proof, realizes buffering and then reduces the noise that the striking produced when rivers strike buffer block 4.

It should be noted that, through setting up buffer block 4 and spring 7 and the cotton 41 of pearl, utilize the spring action of spring 7, for buffer block 4 provides elasticity, when rivers strike buffer block 4, reduce the rivers impact, reduce the velocity of water flow, play the cushioning effect, utilize the cotton 41 of pearl to play fine cushioning effect simultaneously, the two combined action can effectively cushion the processing to the rivers that descend at a high speed, and then the noise reduction.

Example two

As shown in fig. 4, the present embodiment provides a noise reduction device for a drainage pipe, the other structures of the noise reduction device are the same as those of the first embodiment, except that in the present embodiment, the whole device is further provided with a diversion cone 10, the diversion cone 10 is disposed below the second permeability tube 6, the diversion cone 10 is connected with a connecting rod 9, the other end of the connecting rod 9 is fixed at the bottom of the annular baffle plate 8, and the axis of the diversion cone 10 and the axis of the second permeability tube 6 are arranged in a collinear manner. Through setting up water conservancy diversion cone 10, can carry out the water conservancy diversion with the rivers that flow out from second permeability cell 6, the inner wall of internal 1 body in the rivers rapid flow direction of water conservancy diversion to through the protruding muscle 2 outflow of water guide of screw-tupe, guarantee like this that rivers flow along internal 1 inner wall of body always, further reduced the sound of rivers striking pipe wall, reach the effect of noise reduction.

EXAMPLE III

As shown in fig. 5-7, the present embodiment provides a noise reduction device for a drainage pipe, the other structures of which are the same as those of the embodiment, except that in the present embodiment, the whole device is further provided with an outer pipe 11, the inner pipe 1 and the outer pipe 11 are concentrically arranged, a sound insulation layer 12 is formed between the inner pipe 1 and the outer pipe 11, a plurality of connection blocks 13 are arranged in the sound insulation layer 12, and two ends of each connection block 13 are respectively connected to the inner pipe 1 and the outer pipe 11. The noise reduction can be carried out to puigging 12, and connecting block 13 improves whole device intensity, increase of service life.

The outer pipe body 11 and the outer wall of the silencing chamber are further wrapped by silencing cotton 14, and when noise is transmitted, the noise can be further reduced by being absorbed by the silencing cotton 14.

The utility model discloses a double-deck pipeline, the sound insulation effect is better, simultaneously, can not directly influence the pipeline function after outer body 11 is ageing to 1 inner wall in the body in the direct impact of rivers is avoided to the protruding muscle of spiral helicine water guide 2, and the reduction pipeline noise of maximize guarantees that the resident living environment is quiet.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A noise reduction device for a drain pipe comprises a hollow inner pipe body (1), and is characterized in that a plurality of water guide convex ribs (2) are arranged on the inner wall of the inner pipe body (1), and the water guide convex ribs (2) are spirally arranged along the length direction of the inner pipe body (1); the novel gas turbine silencer is characterized by further comprising a silencing chamber, the silencing chamber comprises a shell (3) with a cavity, the shell (3) is communicated with the inner pipe body (1), a buffer block (4) with a cambered surface is arranged in the shell (3), a hollow first vent pipe (5) is connected to the bottom of the buffer block (4), a hollow second vent pipe (6) is sleeved outside the first vent pipe (5), a plurality of second through holes (61) are formed in the wall of the second vent pipe (6), a spring (7) is arranged in the second vent pipe (6), two ends of the spring (7) are respectively connected with the first vent pipe (5) and the second vent pipe (6), an annular water baffle plate (8) is fixedly connected to the outer wall of the second vent pipe (6), and the annular water baffle plate (8) is connected with the wall of the inner pipe body (1).

2. The drain pipe noise reduction device according to claim 1, wherein a diversion cone (10) is further disposed in the housing (3), the diversion cone (10) is connected to the inner wall of the housing (3) and disposed below the second ventilation pipe (6), and the bottom of the diversion cone (10) extends into the inner pipe body (1).

3. The noise reduction device of the drainage pipe according to claim 1, wherein an outer pipe (11) is concentrically sleeved outside the inner pipe (1), a sound insulation layer (12) is formed between the inner pipe (1) and the outer pipe (11), a plurality of connecting blocks (13) are arranged in the sound insulation layer (12), and two ends of each connecting block (13) are respectively connected to the inner pipe (1) and the outer pipe (11).

4. Drain pipe noise reduction device according to claim 3, characterized in that the outer pipe body (11) and the outer part of the housing (3) are further wrapped with sound damping cotton (14).

5. Drain pipe noise reduction device according to claim 1, characterized in that the wall of the first ventilation pipe (5) is provided with a plurality of first through holes (51).

6. Drain pipe noise reduction device according to claim 1, characterized in that the buffer block (4) is provided with pearl wool (41).