CN113049208A - Analog noise absorbing device - Google Patents
Analog noise absorbing device Download PDFInfo
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- CN113049208A CN113049208A CN202110373811.6A CN202110373811A CN113049208A CN 113049208 A CN113049208 A CN 113049208A CN 202110373811 A CN202110373811 A CN 202110373811A CN 113049208 A CN113049208 A CN 113049208A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
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Abstract
The invention discloses an analog noise absorption device, wherein a noise generation part is connected with one end of a noise absorption part and is used for generating noise, the noise absorption part is used for absorbing the noise, and a noise detection part is connected with the other end of the noise absorption part and is used for detecting the noise removal performance of the noise absorption part; noise absorption portion is the opening including absorbing bucket, a plurality of baffles and inhaling the sound cotton, absorbs the bucket both ends for intercommunication noise generation portion and noise detection portion, a plurality of baffles are upper and lower alternative and set up inside the absorption bucket, so that the noise passes through the absorption bucket with crooked route when transmitting along the axial direction who absorbs the bucket, inhales the cotton laminating of sound and sets up on absorption bucket inner wall and baffle. The invention adopts the combination of a fixed sound source and external wind to realize the transmission process of noise, prolongs the noise transmission time through the baffle plate and absorbs the noise by adopting the sound-absorbing cotton. The device has simple structure and easy operation, and can clearly simulate the process of noise transmission under the action of wind power.
Description
Technical Field
The invention belongs to the field of noise absorption, and particularly relates to a simulation noise absorption device.
Background
Noise (Noise) is a type of sound that causes irritation or is too loud and harmful to human health.
From the viewpoint of environmental protection: all the sounds which obstruct people from normally resting, studying and working and the sounds which interfere with the sounds to be heard by people belong to noises.
From the physical point of view: the noise is the sound produced when the sounding body does irregular vibration.
With the development of economic society, the living standard of people is improved, and various entertainment activities are started. The camera is used for construction and construction of various buildings, production and operation of enterprises and factories, whistling driving of urban road vehicles, full-night operation of resident entertainment places and the like, sounds which are different in degree and cannot be accepted by people are generated, inconvenience and trouble are brought to people, and normal life of surrounding residents is influenced. In order to deal with the harm caused by the noise, people need to take measures to control the noise, and the noise is controlled within an acceptable range by cutting off the propagation path of the noise, reducing the intensity of the noise. The invention realizes the process of absorbing the noise by simulating the transmission condition of the noise under the action of wind power.
Disclosure of Invention
The invention aims to provide a simulation noise absorption device to solve the technical problem of noise influence.
In order to solve the problems, the technical scheme of the invention is as follows:
an analog noise absorbing device comprising: a noise generation unit, a noise absorption unit, and a noise detection unit;
the noise detection device comprises a noise absorption part, a noise generation part, a noise detection part and a noise detection part, wherein the noise generation part is connected with one end of the noise absorption part, the noise generation part is used for generating noise, the noise absorption part is used for absorbing the noise, and the noise detection part is connected with the other end of the noise absorption part and is used for detecting the noise removal performance of the noise absorption part; wherein the content of the first and second substances,
noise absorption portion is including absorbing bucket, a plurality of baffles and inhaling the sound cotton, absorbs the bucket both ends and is the opening for intercommunication noise generation portion and noise detection portion, a plurality of baffles are upper and lower alternative and set up inside the absorption bucket, follow with stopping the noise the axial direction transmission of absorption bucket inhales the cotton laminating of sound and sets up on absorption bucket inner wall and baffle, be used for noise absorption.
Wherein, noise generation portion includes: a sound source and a sound source mount;
the sound source mounting piece is of a barrel-shaped structure, one end of the sound source mounting piece is provided with a through hole, and the end, provided with the through hole, of the sound source mounting piece is fixedly connected with the absorption barrel;
the sound source is arranged in the end, which is not provided with the through hole, of the sound source mounting part and is used for generating noise.
Further preferably, the noise generation part further comprises a first air inlet and a second air inlet, the side wall of the sound source mounting part is provided with an upper through hole and a lower through hole which are symmetrical along the axial direction of the sound source mounting part, and the upper through hole and the lower through hole are respectively the first air inlet and the second air inlet.
Preferably, the noise generating part further comprises a first air inlet part and a second air inlet part which are respectively arranged at the first air inlet and the second air inlet, and the first air inlet part and the second air inlet part are of annular structures;
one end of the first air inlet piece is fixedly connected with the first air inlet, and the other end of the first air inlet piece is communicated with the outside;
one end of the second air inlet piece is fixedly connected with the second air inlet, and the other end of the second air inlet piece is used for being communicated with the outside.
Wherein the noise detection section includes: a noise detector and a detection mount;
the detection mounting part is of a barrel-shaped structure, one end of the detection mounting part is provided with a through hole, and the end of the detection mounting part provided with the through hole is fixedly connected with the absorption barrel;
the noise detector is arranged inside one end, which is not provided with the through hole, of the detection mounting part and is used for detecting noise.
Further preferably, the noise detection unit further includes a first air outlet and a second air outlet, wherein the side wall of the detection mounting member is provided with an upper through hole and a lower through hole which are symmetrical along the axial direction of the detection mounting member, and the upper through hole and the lower through hole are respectively the first air outlet and the second air outlet.
Preferably, the noise generating part further comprises a first air outlet element and a second air outlet element respectively arranged at the first air outlet and the second air outlet, and the first air inlet element and the second air inlet element are of annular structures;
one end of the first air outlet piece is fixedly connected with the first air outlet, and the other end of the first air outlet piece is communicated with the outside;
one end of the second air inlet piece is fixedly connected with the second air inlet, and the other end of the second air inlet piece is used for being communicated with the outside.
The first air inlet, the second air inlet, the first air outlet and the second air outlet are also correspondingly provided with blocking pieces for controlling the first air inlet, the second air inlet, the first air outlet and the second air outlet to be opened or closed.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects:
the invention is transversely transmitted in the environment taking wind as a medium, and considering that noise can meet obstacles in the transmission process to further change the transmission direction of the noise, the baffle plate with the length and the area being changeable can realize the time prolonging process of the noise in the transverse transmission process, so that the noise is more fully reduced; the transmission process of noise is realized by combining a fixed sound source with external wind; the noise is absorbed by the sound-absorbing cotton, so that the noise reduction process is realized. The device has simple structure and easy operation, and can clearly simulate the process of noise transmission under the action of wind power.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.
FIG. 1 is a cross-sectional view of an analog noise absorbing device according to an embodiment of the present invention;
fig. 2 is an external structural view of an analog noise absorbing apparatus according to an embodiment of the present invention.
Description of the reference numerals
101: a sound source; 102: a first air inlet; 103: a second air inlet; 104: a sound source mount; 105: a first air intake member; 106: a second air inlet part; 201: an absorption barrel; 202: a baffle plate; 203: sound-absorbing cotton; 301: a noise detector; 302: a first air outlet; 303: a second air outlet; 304: detecting the mounting part; 305: a first air outlet member; 306: and a second air outlet member.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
The following describes an analog noise absorbing device according to the present invention in further detail with reference to the accompanying drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims.
Examples
Referring to fig. 1, the present embodiment provides an analog noise absorbing device, including: a noise generation unit, a noise absorption unit, and a noise detection unit;
the noise detection device comprises a noise absorption part, a noise generation part, a noise detection part and a noise detection part, wherein the noise generation part is connected with one end of the noise absorption part, the noise generation part is used for generating noise, the noise absorption part is used for absorbing the noise, and the noise detection part is connected with the other end of the noise absorption part and is used for detecting the noise removal performance of the noise absorption part; wherein the content of the first and second substances,
noise absorption portion is including absorbing bucket 201, a plurality of baffles 202 and inhaling the sound cotton 203, absorbs bucket 201 both ends and is the opening for intercommunication noise generation portion and noise detection portion, a plurality of baffles 202 are upper and lower alternative and set up inside absorbing bucket 201, in order to block the noise along the axial direction transmission that absorbs bucket 201, inhale the laminating of sound cotton 203 and set up on absorbing bucket 201 inner wall and baffle 202, be used for the noise absorption.
The present embodiment will now be described in detail, referring to fig. 1 and 2, the present embodiment is an integral device, which has a cylindrical main body and four ring structures connected to the main body, two at each end, and is divided into three parts, specifically, a noise generating part, a noise absorbing part and a noise detecting part, for convenience of distinguishing and writing.
Specifically, referring to fig. 1, the noise generating portion is located at the front end position of the present embodiment, and includes a sound source 101, a sound source mounting member 104, and a first air inlet 102 and a second air inlet 103 opened to the sound source mounting member 104. Referring to fig. 2, in structural view, the sound source mounting member 104 is a cylindrical barrel structure, one end of which is provided with a through hole, and the other end of which is closed, and the end of the sound source mounting member 104 provided with the through hole is fixedly connected to the noise absorbing portion. The sound source 101 is provided inside the end of the sound source mounting member 104 not provided with the through hole, and the sound source 101 is a sound generating device for generating noise.
The side wall of the sound source mounting member 104 is provided with an upper through hole and a lower through hole which are symmetrical along the axial direction of the sound source mounting member 104, and the upper through hole and the lower through hole are the above-mentioned first air inlet 102 and second air inlet 103, preferably, the sound source mounting member further comprises a first air inlet member 105 arranged at the first air inlet 102 and a second air inlet member 106 arranged at the second air inlet 103, and the first air inlet member 105 and the second air inlet 103 are of annular structures. One end of the first air inlet piece 105 is fixedly connected with the first air inlet 102 of the sound source mounting piece 104, the other end of the first air inlet piece 105 is used for being communicated with the outside, one end of the second air inlet piece 106 is fixedly connected with the second air inlet 103 of the sound source mounting piece 104, and the other end of the second air inlet piece 106 is used for being communicated with the outside. The first air inlet 102 and the second air inlet 103 are arc-shaped, so that a negative pressure belt is prevented from being formed at the air inlet of the embodiment by air, and blocking parts are correspondingly arranged at the first air inlet 102 and the second air inlet 103 to control whether the embodiment is communicated with the outside through the air inlets.
Next, referring to fig. 1 and 2, the noise absorption part includes an absorption tub 201, baffles 202, and sound absorption cotton 203. Structurally, the absorption barrel 201 is a cylindrical structure, and both ends thereof are open for communicating the noise generation part and the noise detection part. The baffles 202 are arranged at equal intervals, and the adjacent baffles 202 are alternately arranged inside the absorption barrel 201 up and down, so that noise is blocked by the baffles 202 when the noise is transmitted along the axial direction of the absorption barrel 201, the transmission direction of the noise is changed, and the transmission time of the noise is prolonged. The length of the baffle 202 can be adjusted to realize a process of blocking the lateral propagation of the noise. In addition, the length of the baffle 202 may be varied, and when the length reaches a certain length, the noise may be forced to pass through the absorption barrel 201 in a curved path. In addition, sound-absorbing cotton 203 is attached to the inner wall of the absorption barrel 201 and the baffle 202 to absorb noise; the baffle 202 for controlling the air outlet and the air inlet is also attached with noise absorbing cotton to prevent the noise from scattering, so that the noise is fully absorbed.
Finally, referring to fig. 1, the noise detection section is located at the rear end position of the present embodiment, and includes: noise detector 301 and detection mount 304, and first vent 302 and second vent 303 opening into detection mount 304. Referring to fig. 2, the detection mount 304 is a cylindrical barrel structure similar to the sound source mount 104 in structural view, and can be considered as being symmetrically disposed about the center axis of the noise absorbing portion. The one end that detects installed part 304 is seted up the through hole, and the other end is for sealing, detects the one end and the noise absorption portion fixed connection that installed part 304 was equipped with the through hole, the inside noise detection appearance 301 that is equipped with of one end that is not equipped with the through hole for collect the noise, obtain the ability of making an uproar of falling of this embodiment.
The sidewall of the detecting installation member 304 is provided with an upper through hole and a lower through hole which are symmetrical along the axial direction of the detecting installation member 304, and the upper through hole and the lower through hole are the above-mentioned first air outlet 302 and the second air outlet 303, preferably, the detecting installation member further comprises a first air outlet 305 arranged at the first air outlet 302 and a second air outlet 306 arranged at the second air outlet 303, and the first air outlet 305 and the second air outlet 303 are annular structures. One end of the first air outlet piece 305 is fixedly connected with the first air outlet 302 of the detection mounting piece 304, the other end of the first air outlet piece 305 is used for being communicated with the outside, one end of the second air outlet piece 306 is fixedly connected with the second air outlet 303 of the detection mounting piece 304, and the other end of the second air outlet piece 306 is used for being communicated with the outside. Wherein, first air outlet 302 and second air outlet 303 are the arc shape, avoid wind to form the negative pressure area in the air outlet department of this embodiment, and first air outlet 302 and second air outlet 303 homogeneous phase correspond are equipped with and block the piece to whether control this embodiment is through air outlet and outside intercommunication.
The practical use of the present embodiment will now be described in detail
Referring to fig. 1, a sound source 101 is connected to the foremost end of the present embodiment, a noise detector 301 is disposed at the end of the device frame, and then one of the two air outlets and one of the two air inlets are closed, so that external wind enters the present embodiment through the opened air inlet and flows out from the opened air outlet, thereby achieving a natural flow process of wind. The sound source 101 simulates the noise source 101, and the noise is transmitted in the device along with the wind flow direction, and meets the baffle 202, so that the noise transmission is blocked, and the noise absorption cotton in the device absorbs the noise. The transmission time of the noise in the device is controlled by changing the length of the baffle 202, and the noise absorption process of the noise absorption cotton is further realized. And finally, the noise reduction capability of the device can be obtained through the collection and analysis of the noise detector 301.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, it is still within the scope of the present invention if they fall within the scope of the claims of the present invention and their equivalents.
Claims (8)
1. An analog noise absorbing device, comprising: a noise generation unit, a noise absorption unit, and a noise detection unit;
the noise generating part is connected with one end of the noise absorbing part, the noise generating part is used for generating noise, the noise absorbing part is used for absorbing the noise, and the noise detecting part is connected with the other end of the noise absorbing part and is used for detecting the noise removing performance of the noise absorbing part; wherein the content of the first and second substances,
noise absorption portion is including absorbing bucket, a plurality of baffle and inhaling the sound cotton, it is the opening to absorb the bucket both ends, is used for the intercommunication noise generation portion with noise detection portion, it is a plurality of the baffle is upper and lower the setting in turn inside the absorption bucket to block the noise edge the axial direction transmission of absorption bucket, inhale the laminating of sound cotton set up in absorb the bucket inner wall with on the baffle, be used for the noise absorption.
2. The analog noise absorbing device according to claim 1, wherein the noise generating section includes: a sound source and a sound source mount;
the sound source mounting piece is of a barrel-shaped structure, a through hole is formed in one end of the sound source mounting piece, and the end, provided with the through hole, of the sound source mounting piece is fixedly connected with the absorption barrel;
the sound source is arranged in the end, which is not provided with the through hole, of the sound source mounting part, and the sound source is used for generating noise.
3. The apparatus according to claim 2, wherein the noise generating unit further comprises a first air inlet and a second air inlet, wherein the side wall of the sound source mounting member is provided with upper and lower through holes symmetrical to each other in the axial direction of the sound source mounting member, and the upper and lower through holes are the first air inlet and the second air inlet, respectively.
4. The apparatus according to claim 3, wherein the noise generating part further comprises a first air inlet member and a second air inlet member respectively disposed at the first air inlet and the second air inlet, the first air inlet member and the second air inlet member being of an annular structure;
one end of the first air inlet piece is fixedly connected with the first air inlet, and the other end of the first air inlet piece is communicated with the outside;
one end of the second air inlet piece is fixedly connected with the second air inlet, and the other end of the second air inlet piece is communicated with the outside.
5. The analog noise absorbing device according to claim 1, wherein the noise detecting section includes: a noise detector and a detection mount;
the detection mounting part is of a barrel-shaped structure, a through hole is formed in one end of the detection mounting part, and the end, provided with the through hole, of the detection mounting part is fixedly connected with the absorption barrel;
the noise detector is arranged inside one end, which is not provided with the through hole, of the detection mounting part and is used for detecting noise.
6. The apparatus according to claim 5, wherein the noise detecting unit further includes a first air outlet and a second air outlet, and wherein the side wall of the detection mounting member is provided with upper and lower through holes symmetrical to each other in the axial direction of the detection mounting member, and the upper and lower through holes are the first air outlet and the second air outlet, respectively.
7. The apparatus according to claim 6, wherein the noise generating unit further comprises a first air outlet member and a second air outlet member respectively disposed at the first air outlet and the second air outlet, and the first air inlet member and the second air inlet member are annular structures;
one end of the first air outlet piece is fixedly connected with the first air outlet, and the other end of the first air outlet piece is communicated with the outside;
one end of the second air inlet piece is fixedly connected with the second air inlet, and the other end of the second air inlet piece is communicated with the outside.
8. The apparatus as claimed in claim 4 or 7, wherein the first inlet, the second inlet, the first outlet and the second outlet are correspondingly provided with a blocking member for controlling the first inlet, the second inlet, the first outlet and the second outlet to open or close.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110373811.6A CN113049208B (en) | 2021-04-07 | 2021-04-07 | Analog noise absorbing device |
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| CN202110373811.6A CN113049208B (en) | 2021-04-07 | 2021-04-07 | Analog noise absorbing device |
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| CN113049208A true CN113049208A (en) | 2021-06-29 |
| CN113049208B CN113049208B (en) | 2023-09-15 |
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| CN113049208B (en) | 2023-09-15 |
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