CN214889687U

CN214889687U - Noise reduction structure of ventilating duct

Info

Publication number: CN214889687U
Application number: CN202120759001.XU
Authority: CN
Inventors: 孟令飞
Original assignee: Jinan Yantong Ventilation Equipment Co ltd
Current assignee: Jinan Yantong Ventilation Equipment Co ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-11-26
Anticipated expiration: 2031-04-14

Abstract

The utility model provides an air pipe structure of making an uproar falls, including the outer tube, its characterized in that, the internal surface of outer tube encircles the adhesion and has the buffer layer that is used for the buffering noise, the internal surface of buffer layer is provided with the ventilation pipe, screw fixedly connected with air inlet dog is passed through to the inside one end of ventilation pipe, the inside of air inlet dog is the array arrangement and has seted up a plurality of bloops, the inside of ventilation pipe just is located the positive opposite of air inlet dog is equipped with the air-out dog, the inside of air-out dog is the array arrangement and has seted up a plurality of exhaust vents. The utility model discloses the setting of bloop and buffer layer makes the sound wave at the inside refraction many times that produces of air inlet dog, utilizes wood fiber noise absorbing's ability in the air inlet dog wooden structure to weaken the noise, avoid influencing the influence to external mankind among the ventilation pipe service environment, and utilize the buffer layer to absorb the vibration that the ventilation pipe produced, improve air pipe's life.

Description

Noise reduction structure of ventilating duct

Technical Field

The utility model belongs to the technical field of air pipe, especially, relate to an air pipe structure of making an uproar falls.

Background

The ventilation pipe is mainly applied to industrial and building engineering, and the application field mainly relates to: electronic industry dustless factory building clean system, medicine food aseptic workshop clean system, the central air conditioning system of hotel, market hospital, mill and office building, exhaust pipe such as dust removal, discharge fume, oil absorption for industrial pollution control, supply-air pipe for industrial environment or post are comfortable, the gas system is put with taking out to the gas of coal mine, send back the air supply system for coal mine environmental control etc..

Wherein in the hospital, the noise size of air pipe need be considered in the environment that needs silence such as hotel is in order to supply patient or guest to stay, noise in the air pipe is produced by gaseous inner wall that strikes air pipe when removing in the air pipe, the vibration of air pipe self also can produce the noise simultaneously, the production of noise produces the influence to wind channel structure and reduces its life, and the noise produces the sound and pollutes the health of patient's in hospital and the rest of hotel guest of influence, consequently, people need a structure of making an uproar falls in air pipe, the problem of noise pollution still exists in the current air pipe of solution.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a structure of making an uproar falls in air pipe to there is the noise in solving current air pipe, reduces its life, and the noise produces the problem that the sound pollutes the physical and mental health that influences the patient of hospital and hotel lodging guest and have a rest. The utility model provides a structure of making an uproar falls in air pipe, includes the outer tube, its characterized in that, the internal surface of outer tube encircles the adhesion and has the buffer layer that is used for the buffering noise, the internal surface of buffer layer is provided with the ventilation pipe, screw fixedly connected with air inlet dog is passed through to the inside one end of ventilation pipe, a plurality of bloops are seted up to the inside of air inlet dog being the array arrangement, the inside of ventilation pipe just is located the positive opposite of air inlet dog is equipped with the air-out dog, the inside of air-out dog is the array arrangement and has seted up a plurality of exhaust vents.

The air inlet check block is a wood plate with a cylindrical structure, the length of the air inlet check block is 40-50cm, the cross section of the silencing hole formed in the air inlet check block is of a circular structure, the silencing hole is located in the air inlet check block and is in a water wave curve shape, and the inner surface of the silencing hole is subjected to rough polishing treatment.

The buffer layer is adhered between the outer pipe and the ventilating pipe, the buffer layer is made of elastic sound insulation felt plates with the thickness of 3-6cm, and the sum of the diameters of the buffer layer and the air inlet stop block is equal to the inner diameter of the outer pipe.

The air outlet check block is a wood plate with a cylindrical structure, the length of the air outlet check block is the same as that of the air inlet check block, an air outlet hole formed in the air outlet check block is a cylindrical hole groove, and the inner surface of the air outlet hole is subjected to rough polishing treatment.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses the air inlet dog sets up with the air-out dog, and the hole groove surface of seting up bloop and exhaust vent is through rough treatment, can make the sound wave at the inside refraction that produces many times of air inlet dog, utilizes the ability of wood fiber noise absorption in the air inlet dog wooden structure to the noise reduction avoids influencing the influence to external mankind in the ventilation pipe service environment.

2. The utility model discloses the setting of buffer layer can cushion the produced vibration of ventilation pipe under gaseous effect, avoids the outer tube to take place vibrations and the installing support between produce the friction, increases its air pipe's life.

3. The utility model discloses the setting of bloop, bloop water wave form curve set up can avoid the air current to get into the inside of ventilation pipe, less impact sound with very fast speed.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the inner structure of the middle intake air stop of the present invention;

fig. 3 is the structure schematic diagram inside the air-out stop block of the present invention.

In the figure:

1-outer pipe, 2-buffer layer, 3-ventilation pipe, 4-air inlet stop block, 5-silencing hole, 6-air outlet stop block and 7-air outlet hole.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

As shown in figures 1 to 3.

The utility model provides an air pipe structure of making an uproar falls, including outer tube 1, its characterized in that, the internal surface of outer tube 1 encircles the bonding has buffer layer 2 that is used for the buffering noise, the internal surface of buffer layer 2 is provided with ventilation pipe 3, screw fixedly connected with air inlet dog 4 is passed through to the inside one end of ventilation pipe 3, a plurality of bloops 5 have been seted up to the inside of air inlet dog 4 is the array arrangement, the inside of ventilation pipe 3 just is located air inlet dog 4 is equipped with air-out dog 6 just face to face, a plurality of exhaust vents 7 have been seted up to air-out dog 6's inside is the array arrangement.

One end of an air inlet stop block 4 of an outer pipe 1 of a ventilation pipeline is arranged at a position which can receive wind power from the outside, the wind enters the ventilation pipeline 3 through the air inlet stop block 4, in the process that the wind passes through the air inlet stop block 4, because the air inlet stop block 4 adopts a water wave structure, the wind direction can be changed, the wind speed is reduced, the moving speed of the gas in the air inlet stop block 4 is reduced, the generation of noise which is caused by the collision of the gas with the inner wall of the ventilation pipeline 3 when the gas moves at a high speed in the ventilation pipeline 3 is avoided, the inner surface of a bloop 5 is subjected to rough grinding treatment, the sound wave is refracted for a plurality of times in the air inlet stop block 4, the capability of wood fiber in the wood structure of the air inlet stop block 4 for absorbing the noise is utilized, the noise is weakened, the air which enters the ventilation pipeline 3 through the air inlet stop block 4 comes out through an air outlet stop block 6 arranged at the other end of the ventilation pipeline 3, and a buffer layer 2 is also arranged on the inner surface of the outer pipe 1, the buffer layer 2 adopts the sound insulation felt plate with flexibility, can cushion the vibration that the ventilation pipe 3 produced under gaseous effect, avoids outer tube 1 to take place vibrations and produce the friction between the installing support, increases its ventilation pipe's life.

Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims

1. The utility model provides a structure of making an uproar falls in air pipe, includes outer tube (1), its characterized in that, the internal surface of outer tube (1) encircles bonding has buffer layer (2) that are used for the buffering noise, the internal surface of buffer layer (2) is provided with ventilation pipe (3), screw fixedly connected with air inlet dog (4) is passed through to the inside one end of ventilation pipe (3), a plurality of bloops (5) have been seted up in the inside of air inlet dog (4) is the array arrangement, the inside of ventilation pipe (3) just is located the positive opposite of air inlet dog (4) is equipped with air-out dog (6), a plurality of exhaust vents (7) have been seted up in the inside of air-out dog (6) is the array arrangement.

2. A noise reduction structure for a ventilation duct according to claim 1, wherein: the air inlet check block (4) is a wood board with a cylindrical structure, the length of the air inlet check block (4) is 40-50cm, the cross section of the silencing hole (5) formed in the air inlet check block (4) is of a circular structure, and the silencing hole (5) is located in the air inlet check block (4) and is of a water wave curve shape.

3. A noise reduction structure for a ventilation duct according to claim 1, wherein: the buffer layer (2) is adhered to the position between the outer pipe (1) and the ventilation pipe (3), the buffer layer (2) is an elastic sound insulation felt plate with the thickness of 3-6cm, and the sum of the diameters of the buffer layer (2) and the air inlet stop block (4) is equal to the inner diameter of the outer pipe (1).

4. A noise reduction structure for a ventilation duct according to claim 1, wherein: the air outlet check block (6) is a wood board with a cylindrical structure, the length of the air outlet check block (6) is the same as that of the air inlet check block (4), and an air outlet hole (7) formed in the air outlet check block (6) is a cylindrical hole groove.

5. A noise reduction structure for a ventilation duct according to claim 1, wherein: the inner surfaces of the silencing holes (5) and the air outlet holes (7) are respectively subjected to rough polishing treatment.