CN210919188U - Noise elimination device for automobile exhaust - Google Patents
Noise elimination device for automobile exhaust Download PDFInfo
- Publication number
- CN210919188U CN210919188U CN201921880570.9U CN201921880570U CN210919188U CN 210919188 U CN210919188 U CN 210919188U CN 201921880570 U CN201921880570 U CN 201921880570U CN 210919188 U CN210919188 U CN 210919188U
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- CN
- China
- Prior art keywords
- cavity
- pipe
- air
- chamber
- silencing shell
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000008030 elimination Effects 0.000 title abstract description 8
- 238000003379 elimination reaction Methods 0.000 title abstract description 8
- 238000005192 partition Methods 0.000 claims abstract description 26
- 230000030279 gene silencing Effects 0.000 claims abstract description 21
- 230000003584 silencer Effects 0.000 claims abstract description 6
- 238000003780 insertion Methods 0.000 claims description 37
- 230000037431 insertion Effects 0.000 claims description 37
- 230000000694 effects Effects 0.000 abstract description 7
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a noise eliminator for automobile exhaust. The silencer is characterized in that an air inlet pipe is arranged on one side of the silencing shell, an air outlet pipe is arranged on the other side of the silencing shell, the silencing shell is divided into a first cavity, a second cavity and a third cavity by two vertical partition plates, the first cavity and the second cavity are divided into an upper cavity and a lower cavity by a transverse partition plate respectively, air holes are formed in the pipe wall of the first inserting pipe, air channel holes are formed in the vertical partition plates of the upper cavity respectively, one end of the second inserting pipe is located in the lower cavity of the first cavity, the other end of the second inserting pipe is located in the third cavity, one end of the third inserting pipe is located in the lower cavity of the first cavity, and the other. The utility model discloses a noise elimination effect is good, and the utility model discloses it is gaseous to flow under certain atmospheric pressure, and gas flow nature is good.
Description
Technical Field
The utility model relates to a noise eliminator technical field, specifically speaking relate to a noise eliminator for automobile exhaust.
Background
The noise of the motor vehicle is generally the noise with medium intensity of 70-85 dB, the noise of the heavy vehicle can exceed 90dB, and the influence time is long, so that the damage is great. The test result shows that: at 88dB, the driver's attention is reduced by 10%: at 90dB, the drop is 20%. Therefore, the high noise of the automobile not only affects the surrounding environment, but also reduces the working efficiency of the driver, prolongs the reaction time and increases the orientation of the traffic accident. Therefore, an automobile exhaust muffler device with better muffling performance is urgently needed.
As shown in the attached figure 1 of the specification, in the conventional silencer, two insertion pipes are arranged inside a silencing shell, air holes are formed in the pipe walls of the two insertion pipes, flowing gas flows out of the air holes in the insertion pipes connected with the air inlet and then enters the insertion pipes connected with the air outlet through the air holes to be exhausted, and because the whole silencing shell and the inside of the insertion pipes are under high pressure, the gas flows out of the air holes and enters the insertion pipes with poor fluidity, so that the pressure of the silencer is suppressed.
Disclosure of Invention
An object of the utility model is to solve above-mentioned problem, provide a noise eliminator for automobile exhaust, its noise elimination effect is good, and gas flow nature is good.
In order to solve the above problem, the utility model discloses a technical scheme as follows:
a silencing device for automobile exhaust comprises a silencing shell, an air inlet pipe, a first insert pipe, a second insert pipe, a third insert pipe, a partition plate and an air outlet pipe, wherein the air inlet pipe is arranged at one side of the silencing shell, the air outlet pipe is arranged at the other side of the silencing shell, the silencer is characterized in that the partition board is divided into a transverse partition board and a vertical partition board, the two vertical partition boards divide the silencing shell into a first cavity, a second cavity and a third cavity, the first cavity and the second cavity are divided into an upper cavity and a lower cavity by the transverse partition board respectively, air holes are formed in the pipe wall of the first insertion pipe, air channel holes are formed in the vertical partition board of the upper cavity respectively, the second insertion pipe and the third insertion pipe are open at two ends, one end of the second insertion pipe is located in the lower cavity of the first cavity, the other end of the second insertion pipe is located in the third cavity, one end of the third insertion pipe is located in the lower cavity of the first cavity, and the other end of the third insertion pipe is connected with an air.
Furthermore, the second insertion pipe is connected with the venturi tube at the opening end of the third chamber, and the third insertion pipe is connected with the venturi tube at the opening end of the first chamber.
Compared with the prior art, the utility model has the beneficial characteristics that:
the air pressure in the first insert pipe and the upper chamber is larger closer to the air inlet pipe, the air in the first chamber flows to the second chamber under the air pressure, and the air in the second chamber flows to the third chamber; the gas of third chamber gets into from the open end of second intubate, gets into the lower chamber of first chamber through the second intubate, and the gas in the lower chamber of first chamber gets into through the open end of third intubate, finally is arranged outward from the outlet duct.
The utility model provides a noise eliminator, simple structure carries out preliminary noise elimination through the bleeder vent of first insert tube, promotes gas flow through atmospheric pressure, and gaseous switching-over at second insert tube, third insert tube, the lower chamber of the first chamber of the gaseous entry of third chamber, third insert tube of second insert tube carries out noise elimination once more to gaseous buffering, consequently the utility model discloses a noise elimination effect is good, and the utility model discloses gaseous flow under certain atmospheric pressure, and gas mobility is good. The utility model discloses all have fine noise elimination effect to low frequency, intermediate frequency and high frequency noise, have extremely important meaning to natural environment's protection and people's physical and mental health.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a structural view of a conventional muffler device for automobile exhaust gas;
FIG. 2 is a structural view of a muffler assembly for automobile exhaust gas according to an exemplary embodiment;
FIG. 3 is a structural view of a muffler device for automobile exhaust gas according to a second embodiment;
reference numerals: the silencer comprises a silencing shell-1, a first chamber-11, a second chamber-12, a third chamber-13, an air inlet pipe-2, a first insertion pipe-3, a second insertion pipe-4, a third insertion pipe-5, a transverse partition plate-61, a vertical partition plate-62, an air passage hole-621, an air outlet pipe-7 and a Venturi tube-8.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.
The first embodiment is as follows: referring to the description, as shown in FIG. 2:
a silencing device for automobile exhaust comprises a silencing shell 1, an air inlet pipe 2, a first insertion pipe 3, a second insertion pipe 4, a third insertion pipe 5, a partition plate and an air outlet pipe 7, wherein the air inlet pipe 2 is arranged on one side of the silencing shell 1, the air outlet pipe 7 is arranged on the other side of the silencing shell 1, the partition plate is divided into a transverse partition plate 61 and a vertical partition plate 62, the silencing shell is divided into a first cavity 11, a second cavity 12 and a third cavity 13 by the two vertical partition plates 62, the first cavity 11 and the second cavity 12 are respectively divided into an upper cavity 14 and a lower cavity 15 by the transverse partition plate 61, air holes are formed in the pipe wall of the first insertion pipe 3, air channel holes 621 are formed in the vertical partition plate of the upper cavity 14 respectively, openings are formed in two ends of the second insertion pipe 4 and the third insertion pipe 5, one end of the second insertion pipe 4 is located in the lower cavity of the first cavity, the other end of the second insertion pipe 4 is located in the third cavity, the other end of the third insert tube 5 is connected with an air outlet tube.
The air pressure in the first insert pipe and the upper chamber is larger closer to the air inlet pipe, the air in the first chamber flows to the second chamber under the air pressure, and the air in the second chamber flows to the third chamber; the gas of third chamber gets into from the open end of second intubate, gets into the lower chamber of first chamber through the second intubate, and the gas in the lower chamber of first chamber gets into through the open end of third intubate, finally is arranged outward from the outlet duct.
The second embodiment is as follows: referring to the description, FIG. 3:
furthermore, the second insertion tube 4 is connected with a venturi tube 8 at the opening end of the third chamber, and the third insertion tube is connected with the venturi tube 8 at the opening end of the first chamber. The principle of the venturi effect is that when wind blows, the air pressure is relatively low near the venturi port, creating an adsorption effect and causing air flow. The venturi tube reduces the air flow from thick to thin to increase the air flow speed, so that the air forms a vacuum area at the rear side of the venturi tube outlet. When the vacuum area is close to the workpiece, a certain adsorption effect is generated on the workpiece. The venturi tube of the second insert tube promotes the gas in the third chamber to enter the second insert tube, and the venturi tube of the third insert tube promotes the gas in the lower chamber of the first chamber to enter the third insert tube and to be discharged outside through the gas outlet tube.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred embodiments of the present invention, and the present invention is not limited by the above preferred embodiments, and various changes and modifications can be made without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the present invention as claimed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. A silencing device for automobile exhaust comprises a silencing shell, an air inlet pipe, a first insert pipe, a second insert pipe, a third insert pipe, a partition plate and an air outlet pipe, wherein the air inlet pipe is arranged at one side of the silencing shell, the air outlet pipe is arranged at the other side of the silencing shell, the silencer is characterized in that the partition board is divided into a transverse partition board and a vertical partition board, the two vertical partition boards divide the silencing shell into a first cavity, a second cavity and a third cavity, the first cavity and the second cavity are divided into an upper cavity and a lower cavity by the transverse partition board respectively, air holes are formed in the pipe wall of the first insertion pipe, air channel holes are formed in the vertical partition board of the upper cavity respectively, the second insertion pipe and the third insertion pipe are open at two ends, one end of the second insertion pipe is located in the lower cavity of the first cavity, the other end of the second insertion pipe is located in the third cavity, one end of the third insertion pipe is located in the lower cavity of the first cavity, and the other end of the third insertion pipe is connected with an air.
2. The muffling device for automobile exhaust according to claim 1, wherein the second insertion tube has a venturi at the open end of the third chamber, and the third insertion tube has a venturi at the open end of the first chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921880570.9U CN210919188U (en) | 2019-11-04 | 2019-11-04 | Noise elimination device for automobile exhaust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921880570.9U CN210919188U (en) | 2019-11-04 | 2019-11-04 | Noise elimination device for automobile exhaust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210919188U true CN210919188U (en) | 2020-07-03 |
Family
ID=71350411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921880570.9U Expired - Fee Related CN210919188U (en) | 2019-11-04 | 2019-11-04 | Noise elimination device for automobile exhaust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210919188U (en) |
-
2019
- 2019-11-04 CN CN201921880570.9U patent/CN210919188U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200703 |