CN213039356U - Silencer of automobile exhaust pipe - Google Patents
Silencer of automobile exhaust pipe Download PDFInfo
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- CN213039356U CN213039356U CN202021676749.5U CN202021676749U CN213039356U CN 213039356 U CN213039356 U CN 213039356U CN 202021676749 U CN202021676749 U CN 202021676749U CN 213039356 U CN213039356 U CN 213039356U
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- end plate
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- silencing
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Abstract
The utility model discloses an automobile exhaust pipe muffler, barrel and amortization are cotton in barrel, front end plate, back barrel, baffle, first, wherein: the front end plate and the rear end plate are respectively arranged on the front cylinder body and the rear cylinder body, the front cylinder body and the rear cylinder body are coaxially connected, the partition plate is arranged between the front cylinder body and the rear cylinder body, a first silencing cavity is formed among the first inner cylinder body, the front end plate and the partition plate, the air inlet is communicated with the first silencing cavity, a second silencing cavity is formed among the first inner cylinder body, the front end plate and the partition plate, a plurality of first connecting holes are formed in the side wall of the first inner cylinder body and used for communicating the first connecting holes with the second silencing cavity, a plurality of vent holes are formed in the partition plate, and the vent holes are communicated with the second silencing cavity; the silencing cotton is arranged in the first silencing cavity and the second silencing cavity. The utility model discloses simple structure, through gaseous effective collision many times with the amortization cotton, increase noise cancelling effect.
Description
Technical Field
The utility model relates to an automobile silencing equipment technical field especially relates to an automobile exhaust pipe muffler.
Background
The silencer is one of the most important parts of an engine exhaust system, can safely discharge waste gas after combustion of an engine, and can reduce exhaust noise of the engine and exhaust airflow pressure loss by using the silencer structure, so that the whole vehicle has better performance. The existing silencer for the automobile exhaust pipe is complex in structure and limited in silencing capacity.
SUMMERY OF THE UTILITY MODEL
For the technical problem who exists among the solution background art, the utility model provides an automobile exhaust pipe muffler.
The utility model provides a pair of vehicle vent-pipe muffler, barrel and amortization are cotton in barrel, front end plate, back barrel, baffle, first, wherein:
the front barrel and the rear barrel are coaxially connected, the front end plate is fixed at one end of the front barrel, which is far away from the rear barrel, an air inlet is formed in the front end plate, the rear end plate is fixed at the end face of the rear barrel, which is far away from the front barrel, an air outlet is formed in the rear end plate, and the air outlet is communicated with the rear barrel;
the baffle is arranged between the front barrel and the rear barrel, the first inner barrel is sleeved in the front barrel, two ends of the first inner barrel are respectively connected with the front end plate and the baffle, a first silencing cavity is formed among the first inner barrel, the front end plate and the baffle, the air inlet is communicated with the first silencing cavity, a second silencing cavity is formed among the first inner barrel, the front end plate and the baffle, a plurality of first connecting holes are formed in the side wall of the first inner barrel and used for communicating the first connecting holes with the second silencing cavity, a plurality of vent holes are formed in the baffle, and the vent holes are communicated with the second silencing cavity;
the silencing cotton is arranged in the first silencing cavity and the second silencing cavity.
As the utility model discloses the scheme of further optimization still includes the barrel in the second, and the barrel is installed in second amortization intracavity in the second, and the both ends of barrel all are connected with front end plate and baffle in the second, and the barrel separates the second amortization chamber for inner ring amortization chamber and outer ring amortization chamber in the second, and the outer ring amortization chamber is located the barrel outside in the second, and air vent and outer ring amortization chamber intercommunication, the lateral wall of barrel is opened and is had the second connecting hole in the second, and the second connecting hole is used for communicateing outer ring amortization chamber and inner ring amortization chamber.
In order to improve the noise reduction effect, as the utility model discloses further optimized scheme, the second connecting hole is crisscross each other with first connecting hole.
In order to improve the noise reduction effect, as the utility model discloses the scheme of further optimization, second inner barrel lateral wall and preceding barrel inner wall all are equipped with the amortization cotton.
In order to improve the noise reduction effect, as the utility model discloses further optimized scheme, the gas outlet is crisscross each other with the air vent.
In order to improve the noise reduction effect, as the utility model discloses the scheme of further optimizing also is equipped with the amortization cotton on the rear end plate.
In order to improve the noise reduction effect, as the utility model discloses further optimized scheme, the terminal surface that the baffle is located back barrel is equipped with the amortization cotton.
As a further preferred aspect of the present invention, the front cylinder and the rear cylinder are formed by casting.
In order to improve the noise reduction effect, as the utility model discloses further optimized scheme, the air vent is perpendicular with the axis of first connecting hole.
The utility model discloses in, the vehicle vent-pipe muffler that provides, gas is from the air inlet first amortization chamber in proper order, second amortization chamber, the back barrel, discharge from the gas outlet at last, gaseous amortization of carrying on in this process, because air inlet and gas outlet are established respectively on front end plate and back end plate, the air vent is established on the baffle, first connecting hole is established on the lateral wall of barrel in first, and then make air inlet and air vent all be certain angle with first connecting hole, time gas make a round trip the collision in first amortization chamber and second amortization chamber, and then increase noise cancelling effect.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view of the utility model a-a.
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 or similar designations denote like or similar elements or elements having like or similar functionality throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
An automobile exhaust pipe silencer as shown in fig. 1-2, comprising a front cylinder body 1, a front end plate 2, a rear end plate 3, a rear cylinder body 10, a partition plate 4, a first inner cylinder body 5 and silencing cotton 6, wherein:
the front barrel 1 and the rear barrel 10 are formed by casting, the front barrel 1 is coaxially connected with the rear barrel 10, the front end plate 2 is fixed at one end of the front barrel 1 far away from the rear barrel 10, the front end plate 2 is provided with an air inlet 20, the rear end plate 3 is fixed at the end surface of the rear barrel 10 far away from the front barrel 1, the rear end plate 3 is provided with an air outlet 30, and the air outlet 30 is communicated with the rear barrel 10;
the partition plate 4 is arranged between the front barrel body 1 and the rear barrel body 10, the first inner barrel body 5 is sleeved in the front barrel body 1, two ends of the first inner barrel body 5 are respectively connected with the front end plate 2 and the partition plate 4, a first silencing cavity 7 is formed between the first inner barrel body 5, the front end plate 2 and the partition plate 4, the air inlet 20 is communicated with the first silencing cavity 7, a second silencing cavity 8 is formed between the first inner barrel body 5, the front barrel body 1, the front end plate 2 and the partition plate 4, a plurality of first connecting holes 50 are formed in the side wall of the first inner barrel body 5, the first connecting holes 50 are used for communicating the first connecting hole with the second silencing cavity 8, a plurality of vent holes 40 are formed in the partition plate 4, the vent holes 40 are communicated with the second silencing cavity 8, the air inlet 20 is perpendicular to the first connecting holes 50, the vent holes 40 are perpendicular to the first connecting holes 50, and the vent holes 40 are staggered with;
the silencing cotton 6 is arranged in the first silencing cavity 7 and the second silencing cavity 8;
the silencer further comprises a second inner barrel 9, the second inner barrel 9 is installed in a second silencing cavity 8, two ends of the second inner barrel 9 are connected with the front end plate 2 and the partition plate 4, the second inner barrel 9 divides the second silencing cavity 8 into an inner ring silencing cavity 80 and an outer ring silencing cavity 81, the outer ring silencing cavity 81 is located on the outer side of the second inner barrel 9, the vent hole 40 is communicated with the outer ring silencing cavity 81, a second connecting hole 90 is formed in the side wall of the second inner barrel 9, the second connecting hole 90 is used for communicating the outer ring silencing cavity 81 with the inner ring silencing cavity 80, and the second connecting hole 90 and the first connecting hole 50 are mutually staggered; the side wall of the second inner cylinder body 9 and the inner wall of the front cylinder body 1 are both provided with silencing cotton 6;
the rear end plate 3 is also provided with silencing cotton 6;
the end surface of the partition board 4 positioned in the rear cylinder body 10 is provided with silencing cotton 6;
in the working process of the embodiment: the gas enters the first silencing cavity 7 from the gas inlet 20, moves along a straight line in the first silencing cavity 7 and collides with the silencing cotton 6 on the partition plate 4 opposite to the gas inlet 20, the silencing cotton 6 silences, because the first connecting hole 50 is vertical to the gas inlet, the gas collided with the silencing cotton 6 enters the inner ring silencing cavity 80 through the first connecting hole 50, because the first connecting hole 50 and the second connecting hole 90 are staggered, the gas collides with the silencing cotton 6 on the inner wall of the second inner cylinder 9 firstly to be silenced, then the gas enters the outer ring silencing cavity 81 from the second connecting hole 90, because the vent hole is vertical to the second connecting hole 90, the gas collides with the silencing cotton 6 on the inner wall of the front cylinder 1 to be silenced again, then the gas enters the rear cylinder 10 from the vent hole 40, because the gas outlet 30 is staggered with the vent hole 40, the gas is discharged from the gas outlet 30 after colliding with the silencing cotton 6 on the rear end plate 3 and the silencing cotton 6 on the partition plate 4, and the structure is simple and the silencing effect is good.
In order to further increase the noise reduction effect, in this embodiment, it is preferable that the noise reduction device further includes a second inner cylinder 9, the second inner cylinder 9 is installed in the second noise reduction chamber 8, both ends of the second inner cylinder 9 are connected to the front end plate 2 and the partition plate 4, the second inner cylinder 9 divides the second noise reduction chamber 8 into an inner ring noise reduction chamber 80 and an outer ring noise reduction chamber 81, the outer ring noise reduction chamber 81 is located outside the second inner cylinder 9, the vent hole 40 is communicated with the outer ring noise reduction chamber 81, a second connection hole 90 is formed in a side wall of the second inner cylinder 9, and the second connection hole 90 is used for communicating the outer ring noise reduction chamber 81 and the inner ring noise reduction chamber 80.
In order to further increase the sound deadening effect, it is preferable in the present embodiment that the second connection holes 90 are staggered with respect to the first connection holes 50.
In order to further increase the noise reduction effect, it is preferable in this embodiment that the side wall of the second inner cylinder 9 and the inner wall of the front cylinder 1 are both provided with noise reduction cotton 6.
In order to further increase the sound attenuation effect, it is preferable in the present embodiment that the air outlets 30 and the vent holes 40 are staggered with each other.
In order to further increase the noise reduction effect, it is preferable in this embodiment that the rear end plate 3 is also provided with noise reduction cotton 6.
In order to further increase the noise reduction effect, in the present embodiment, it is preferable that the end surface of the partition plate 4 located in the rear cylinder 10 is provided with noise reduction cotton 6.
In the present embodiment, it is preferable that the front cylinder 1 and the rear cylinder 10 are formed by casting.
In order to further increase the sound deadening effect, it is preferable in the present embodiment that the vent hole 40 is perpendicular to the axis of the first connection hole 50.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (9)
1. The utility model provides an automobile exhaust pipe muffler, its characterized in that, includes preceding barrel (1), front end plate (2), back end plate (3), back barrel (10), baffle (4), barrel (5) and amortization cotton (6) in first, wherein:
the front cylinder (1) is coaxially connected with the rear cylinder (10), the front end plate (2) is fixed at one end of the front cylinder (1) far away from the rear cylinder (10), the front end plate (2) is provided with an air inlet (20), the rear end plate (3) is fixed at the end surface of the rear cylinder (10) far away from the front cylinder (1), the rear end plate (3) is provided with an air outlet (30), and the air outlet (30) is communicated with the rear cylinder (10);
the baffle (4) is arranged between the front barrel (1) and the rear barrel (10), the first inner barrel (5) is sleeved in the front barrel (1), two ends of the first inner barrel (5) are respectively connected with the front end plate (2) and the baffle (4), a first silencing cavity (7) is formed between the first inner barrel (5) and the front end plate (2) and the baffle (4), the air inlet (20) is communicated with the first silencing cavity (7), a second silencing cavity (8) is formed between the first inner barrel (5), the front barrel (1), the front end plate (2) and the baffle (4), a plurality of first connecting holes (50) are formed in the side wall of the first inner barrel (5), the first connecting holes (50) are used for communicating the first connecting hole with the second silencing cavity (8), a plurality of vent holes (40) are formed in the baffle (4), and the vent holes (40) are communicated with the second silencing cavity (8);
the silencing cotton (6) is arranged in the first silencing cavity (7) and the second silencing cavity (8).
2. The automobile exhaust pipe muffler according to claim 1, further comprising a second inner cylinder (9), wherein the second inner cylinder (9) is installed in a second muffling cavity (8), both ends of the second inner cylinder (9) are connected to the front end plate (2) and the partition plate (4), the second inner cylinder (9) divides the second muffling cavity (8) into an inner ring muffling cavity (80) and an outer ring muffling cavity (81), the outer ring muffling cavity (81) is located outside the second inner cylinder (9), the vent hole (40) is communicated with the outer ring muffling cavity (81), a second connecting hole (90) is formed in a side wall of the second inner cylinder (9), and the second connecting hole (90) is used for communicating the outer ring muffling cavity (81) and the inner ring muffling cavity (80).
3. The muffler for an automobile exhaust pipe according to claim 2, wherein the second connection hole (90) is staggered with respect to the first connection hole (50).
4. The muffler for automobile exhaust pipes according to claim 2, wherein the side wall of the second inner cylinder (9) and the inner wall of the front cylinder (1) are provided with silencing cotton (6).
5. The muffler for an automobile exhaust pipe according to claim 1, wherein the air outlet (30) and the vent hole (40) are staggered with each other.
6. The muffler for an automobile exhaust pipe according to claim 1, wherein the rear end plate (3) is also provided with a sound deadening cotton (6).
7. The muffler for an automobile exhaust pipe according to claim 1, wherein the end surface of the partition plate (4) in the rear cylinder (10) is provided with a sound-deadening cotton (6).
8. The muffler for an automobile exhaust pipe according to claim 1, wherein the front cylinder (1) and the rear cylinder (10) are formed by casting.
9. The muffler for an automobile exhaust pipe according to claim 1, wherein the vent hole (40) is perpendicular to an axis of the first connection hole (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021676749.5U CN213039356U (en) | 2020-08-12 | 2020-08-12 | Silencer of automobile exhaust pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021676749.5U CN213039356U (en) | 2020-08-12 | 2020-08-12 | Silencer of automobile exhaust pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213039356U true CN213039356U (en) | 2021-04-23 |
Family
ID=75531815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021676749.5U Active CN213039356U (en) | 2020-08-12 | 2020-08-12 | Silencer of automobile exhaust pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213039356U (en) |
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2020
- 2020-08-12 CN CN202021676749.5U patent/CN213039356U/en active Active
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