CN211777018U

CN211777018U - Silencing and ventilating device

Info

Publication number: CN211777018U
Application number: CN201921441801.6U
Authority: CN
Inventors: 王耀祖; 夏德荣
Original assignee: Shanghai Shenrong Environmental Protection Equipment Co ltd
Current assignee: Shanghai Shenrong Environmental Protection Equipment Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-10-27
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses a noise elimination ventilation unit, including the shell, be equipped with in the shell and be used for communicating indoor and outdoor ventilation passageway, ventilation passageway's lateral wall has the porous structure that is used for eliminating noise. The silencing and ventilating device is communicated with the indoor space and the outdoor space through the ventilating channel, and outdoor air enters the indoor space through the ventilating channel, so that the effects of ventilation and air exchange are achieved. Meanwhile, the side wall of the ventilation channel is provided with a porous structure, after the noise enters the ventilation channel, the noise is reflected between the side walls of the ventilation channel, and the porous structure can absorb a large amount of noise, so that the noise elimination effect is achieved, and the total amount of the noise entering the room is reduced.

Description

Silencing and ventilating device

Technical Field

The utility model relates to a building equipment technical field, in particular to noise elimination ventilation unit.

Background

With the rapid development of national economy, the quantity of motor vehicles kept by the nation is rapidly increased, the increasing vehicles bring more serious noise pollution, and the civil building rooms close to streets and the classrooms of the schools close to the streets are seriously influenced by traffic noise.

The existing noise elimination technology generally adopts resistive noise elimination, and one mode of the resistive noise elimination is that a double-layer window is adopted, noise is reduced by prolonging a sound transmission path, and the double-layer window causes the whole window to have large volume and heavy weight and influence the visual effect; the other way of the resistive noise elimination is to adopt a sound absorption material to absorb noise, but the existing high-efficiency sound absorption material is usually quartz cotton and a foaming material, the quartz cotton has great harm to human bodies, and the foaming material has low sound absorption capacity and is easy to age and lose efficacy. Meanwhile, the resistance noise elimination can increase the resistance of gas flow and influence the ventilation effect of the window.

Therefore, how to provide a silencing and ventilating device which can play a silencing role and ensure ventilation and air exchange is a technical problem which needs to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a noise elimination ventilation unit, it has set up porous structure at the lateral wall of ventilation passageway to reach the purpose of noise elimination in the ventilation.

In order to achieve the above object, the present invention provides a noise elimination ventilation device, which comprises an outer shell, wherein a ventilation channel for communicating indoor and outdoor is arranged in the outer shell, and the side wall of the ventilation channel has a porous structure for eliminating noise.

Preferably, the shell is the cross section and personally submits the rectangle, shell one side is for being used for the installation wall that links to each other with door and window, the lateral part of installation wall both sides has along thickness direction run through, in order to communicate respectively ventilation passageway and indoor and ventilation passageway and outdoor air outlet and air intake.

Preferably, the porous structure is a microporous plate, the cross section of the microporous plate is arc-shaped, two ends of the microporous plate are connected with the inner side of the mounting wall, and a cavity is formed between the microporous plate and the mounting wall.

Preferably, the microporous plate is provided with a guide plate with a circular arc-shaped cross section, the bending direction of the guide plate is the same as that of the microporous plate, and the ventilation channel is positioned between the guide plate and the microporous plate.

Preferably, the outer side of the mounting wall is further provided with a limit stop extending along the length direction of the shell and used for limiting in the mounting process.

Preferably, the air inlet is provided with an insect-proof net.

Preferably, the air quantity adjusting device further comprises an adjusting mechanism used for adjusting the air quantity.

Preferably, the adjusting mechanism comprises an adjusting valve plate, the end of the housing is provided with an adjusting cavity isolated from the ventilation channel, the adjusting valve plate is hinged to two ends of the housing through a rotating shaft, and an adjusting handle which is connected with the rotating shaft and changes the angle of the adjusting valve plate through the rotating shaft is arranged in the adjusting cavity.

The utility model provides a noise elimination ventilation unit, including the shell, be equipped with in the shell and be used for communicating indoor and outdoor ventilation passageway, ventilation passageway's lateral wall has the porous structure that is used for eliminating the noise.

The silencing and ventilating device is communicated with the indoor space and the outdoor space through the ventilating channel, and outdoor air enters the indoor space through the ventilating channel, so that the effects of ventilation and air exchange are achieved. Meanwhile, the side wall of the ventilation channel is provided with a porous structure, after the noise enters the ventilation channel, the noise is reflected between the side walls of the ventilation channel, and the porous structure can absorb a large amount of noise, so that the noise elimination effect is achieved, and the total amount of the noise entering the room is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of the muffling and ventilating device provided by the present invention;

fig. 2 is a cross-sectional view of the muffling and venting device.

Wherein the reference numerals in fig. 1 and 2 are:

the device comprises a shell 1, a ventilation channel 2, a cavity 3, a microporous plate 4, a limit stop 5, an adjusting handle 6, an air inlet 21 and an air outlet 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, 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 work belong to the protection scope of the present invention.

In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural view of a muffling and ventilating device provided by the present invention; fig. 2 is a cross-sectional view of the muffling and venting device.

The utility model provides a noise elimination ventilation unit, the structure is as shown in figure 1 and figure 2, including shell 1, shell 1 is located between door and window and the wall body, is equipped with ventilation passageway 2 in the shell 1, and ventilation passageway 2 can play the effect of taking a breath with indoor and outdoor intercommunication. The connection between the housing 1 and the door and window can be made in the prior art.

Generally, the length of the housing 1 is equal to the height or width of the door window, thereby facilitating installation. The housing 1 has an inlet 21 and an outlet 22 penetrating through the side walls in the thickness direction, and of course, the inlet 21 is located on the outdoor side of the housing 1 and the outlet 22 is located on the indoor side of the housing 1. To avoid causing the air to pass from the ventilation passage 2 into the room, the side wall of the ventilation passage 2 has a porous structure for eliminating noise. The porous structure may be a porous plate or a porous filler such as ceramic. In the air circulation process, the noise transmitted from the air inlet 21 is attenuated in intensity under the multiple reflection of the porous structure, so that the noise elimination effect is achieved. Of course, to further eliminate the noise, the ventilation channel 2 may adopt a curved channel to increase the number of reflections of the noise, thereby improving the noise elimination effect.

In this embodiment, the muffling and ventilating device is provided with a ventilating channel 2, and the side wall of the ventilating channel 2 has a porous structure. And the porous structure can weaken or even eliminate the noise transmitted outdoors and reduce the influence of the noise on indoor personnel while ventilating.

Optionally, the cross section of the housing 1 is rectangular, and one side surface of the housing 1 is a mounting wall for connecting with a door or a window. Specifically, the air inlet 21 and the air outlet 22 are distributed along the length direction of the mounting wall, as shown in fig. 1, the air inlet 21 and the air outlet 22 are divided into two rows in the width direction of the mounting wall, the inside of the housing 1 is the cavity 3, that is, the cross section of the ventilation channel 2 is rectangular, and both the air inlet 21 and the air outlet 22 are located on the same side surface of the ventilation channel 2. Of course, the width of the mounting wall is larger than the thickness of the door window, and the door window is fixed between the air inlet 21 and the air outlet 22. The air inlet 21 is communicated with the outdoor and the ventilation channel 2, and the air outlet 22 is communicated with the ventilation channel 2 and the indoor. The porous structure may be embodied as a porous packing located between the intake opening 21 and the outtake opening 22.

Optionally, in an embodiment of the present application, the cross section of the ventilation channel 2 is in an arc-shaped belt shape, as shown in fig. 2, the side wall with the larger curvature radius of the ventilation channel 2 is the outer side wall, and the side wall with the smaller curvature radius is the inner side wall. The air flows along the ventilation channel 2, and since the air inlet 21 and the air outlet 22 are located in the same plane, the noise is inevitably reflected after being transmitted into the ventilation channel 2 and then transmitted out of the air outlet 22. The shape of the ventilation channel 2 increases the propagation path of noise, thereby increasing the attenuation of the noise and improving the silencing effect.

Further, the porous structure is a microporous plate 4, the microporous plate 4 is located on the inner side wall of the ventilation channel 2, as shown in fig. 2, the cross section of the microporous plate 4 is arc-shaped, and two side edges of the microporous plate are connected with the inner side of the mounting wall. A cavity 3 is formed between the micro-porous plate 4 and the mounting wall, noise is reflected between the inner side wall and the outer side wall of the ventilation channel 2 after entering the ventilation channel 2, once the noise passes through the micro-porous plate 4 and enters the cavity 3, a large amount of energy of the noise is lost through repeated reflection of the cavity 3, and then the noise elimination effect is remarkably improved.

In addition, the outer side wall of the ventilation channel 2 is a guide plate with an arc-shaped cross section, the bending direction of the guide plate is the same as that of the microporous plate 4, and the airflow flows along the guide plate and finally flows out of the air outlet 22. Of course, the user can also set the guide plate as a porous structure as required, and in order to ensure the airflow and reduce the on-way resistance loss, the guide plate is still set as a smooth arc plate in the present embodiment.

In this embodiment, the air inlet 21 and the air outlet 22 of the muffling and ventilating device are located in the same plane, so that the noise can pass through the air outlet 22 into the room only after at least one reflection in the ventilation channel 2. In the process of noise reflection, the energy is lost, the sound intensity is reduced, and the noise elimination effect of the noise elimination and ventilation device is further improved.

Optionally, in order to facilitate installation of the silencing and ventilating device, a limit stop 5 is further arranged on the outer side of the installation wall. Because door and window are fixed between air intake 21 and air outlet 22, installer need adjust the angle of noise elimination ventilation unit, avoid door and window to shelter from air intake 21 or air outlet 22, spacing backstop 5 extends along the length direction of shell 1, and is on a parallel with the straight line in air intake 21 or air outlet 22 place. The mounting wall is attached to the side edge of the door and window in the mounting process, then the position of the silencing and ventilating device is adjusted, the limiting stop 5 is attached to the front side or the rear side of the door and window, and the positioning of the silencing and ventilating device can be completed, so that the assembly efficiency is greatly improved.

Optionally, in order to prevent mosquitoes or dust from entering the room, the air inlet 21 is provided with an insect-proof net. The insect-proof net can be fixed on the inner side of the shell 1, and the insect-proof net can be strip-shaped, and the length of the insect-proof net is slightly smaller than that of the shell 1. Even if the insect-proof net and the shell 1 are loosened, the insect-proof net cannot completely fall off.

In addition, the silencing and ventilating device further comprises an adjusting mechanism, and a user can change the ventilation quantity through the adjusting mechanism.

Optionally, the adjusting mechanism comprises an adjusting valve plate, a rotating shaft and an adjusting handle 6. The adjusting valve plate is located ventilation channel 2 and is close to air outlet 22 one side, and the pivot sets up along the central line of adjusting valve plate, and with adjusting valve plate fixed connection. The upper and lower both ends of shell 1 all have the regulation chamber, and the regulation chamber is isolated with ventilation channel 2, and the air current can not get into the regulation chamber from ventilation channel 2 promptly. The upper end and the lower end of the rotating shaft respectively extend into the upper adjusting cavity and the lower adjusting cavity. The side of the adjusting cavity facing the indoor is also provided with a strip-shaped hole, the adjusting handle 6 penetrates through the strip-shaped hole to be connected with the end part of the rotating shaft, the angle of the adjusting valve plate can be changed by pulling the adjusting handle 6, and then the ventilation area of the ventilation channel 2 is changed, and the purpose of adjusting the ventilation quantity is achieved. Of course, the rotating shaft may also be fixed on one side of the adjusting valve plate, and the user may also adopt an adjusting mechanism with other structures, such as a gate valve structure or a shutter structure in the prior art, which is not limited herein.

In this embodiment, still set up adjustment mechanism among the noise elimination ventilation unit, adjustment mechanism can change the size of air volume, can reduce the air volume when outdoor air quality is relatively poor, otherwise then increases the air volume. The flexibility of ventilation of the silencing and ventilating device is improved.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The above details are provided for the silencing and ventilating device provided by the present invention. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A silencing and ventilating device is characterized by comprising a shell (1), wherein a ventilating channel (2) for communicating indoor and outdoor is arranged in the shell (1), and the side wall of the ventilating channel (2) is provided with a porous structure for eliminating noise;

the utility model discloses a ventilation air conditioner, including shell (1), installation wall, ventilation passageway (2) and indoor and ventilation passageway (2) and outdoor air outlet (22) and air intake (21), shell (1) is the transversal rectangle of personally submitting, shell (1) one side is for being used for the installation wall that links to each other with door and window, the lateral part of installation wall both sides has along thickness direction run through, in order to communicate respectively ventilation passageway (2) and indoor and ventilation passageway (2) and outdoor air outlet (22.

2. A silencing and ventilating device according to claim 1, wherein said porous structure is a micro-perforated plate (4), said micro-perforated plate (4) has a circular arc cross-section, and both ends of said micro-perforated plate are connected to the inner side of said mounting wall, and a cavity (3) is formed between said micro-perforated plate (4) and said mounting wall.

3. A silencing ventilation device according to claim 2, characterized in that it also comprises a deflector with a circular arc-shaped cross section, the bending direction of said deflector being the same as the bending direction of said microporous plate (4), said ventilation channel (2) being located between said deflector and said microporous plate (4).

4. A sound-damping ventilation device according to claim 1, characterized in that the mounting wall is provided on its outside with a limit stop (5) extending in the direction of the length of the housing (1) for limiting during mounting.

5. A sound-damping ventilation device according to claim 1, characterized in that the air inlet opening (21) is provided with an insect screen.

6. The muffling and ventilating device according to any one of claims 1 to 5, further comprising an adjusting mechanism for adjusting the amount of air.

7. A muffling and ventilation device according to claim 6, wherein said adjusting mechanism comprises an adjusting valve plate, the end of said casing (1) has an adjusting cavity isolated from said ventilation channel (2), said adjusting valve plate is hinged with both ends of said casing (1) through a rotating shaft, said adjusting cavity is provided with an adjusting handle (6) connected with said rotating shaft and used for changing the angle of said adjusting valve plate through said rotating shaft.