CN214741558U - Silencer for automobile exhaust pipeline - Google Patents

Silencer for automobile exhaust pipeline Download PDF

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Publication number
CN214741558U
CN214741558U CN202023277536.8U CN202023277536U CN214741558U CN 214741558 U CN214741558 U CN 214741558U CN 202023277536 U CN202023277536 U CN 202023277536U CN 214741558 U CN214741558 U CN 214741558U
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silencing
amortization
fixedly connected
pipe
cavity
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CN202023277536.8U
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Chinese (zh)
Inventor
郭庆富
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Tianjin Jiuze Yongkun Machinery Technology Co ltd
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Tianjin Jiuze Yongkun Machinery Technology Co ltd
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Abstract

The utility model discloses an automobile exhaust pipeline muffler, concretely relates to auto-parts technical field, including the amortization casing, the inside hollow structure that is of amortization casing, the inside amortization mechanism that is provided with of amortization casing, amortization mechanism includes first baffle, first baffle bottom is provided with the second baffle, inside first amortization chamber, second amortization chamber, the third amortization chamber of being formed with of second baffle through first baffle of amortization casing, first amortization intracavity portion is provided with the connecting pipe, connecting pipe top and bottom all with first amortization intracavity wall fixed connection, connecting pipe one side sets up the amortization pipe. The utility model discloses a set up canceling release mechanical system, block completely isolated to the noise, improve the noise reduction effect, the effectual solution tail gas noise phenomenon of the mode of making an uproar falls in multiple, has reduced the influence of traffic noise to people's life to provide a comfortable living environment for people.

Description

Silencer for automobile exhaust pipeline
Technical Field
The utility model relates to the technical field of auto-parts, concretely relates to automobile exhaust pipeline muffler.
Background
The exhaust pipe is a part of an engine exhaust system, which is used for exhausting exhaust gas generated in the working process of an engine, a large amount of noise is generated in the working process of an automobile, the noise is transmitted to the outside of the automobile and causes noise pollution to the periphery of the automobile, the automobile exhaust noise mainly comprises periodic exhaust noise, turbulent noise and air column resonance noise, the resonance noise consisting of a cylinder and the exhaust pipe is the most important source for some horizontal-bar engines, and the noise excited by periodic pressure generated by the periodic opening and closing of an exhaust valve of the engine claims the periodic exhaust noise and is the most important component in the exhaust noise.
With the increase of automobile reserves in cities, traffic noise has more and more influence on life of people, and automobile noise interferes with normal life and rest of people and even influences the health of people in severe cases, so that people pay more attention to the requirements of noise control of automobiles, and the control of the noise level of automobiles is imperative.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides an automobile exhaust duct muffler to solve among the prior art because the muffler on the current automobile exhaust duct, the noise cancelling effect is not very ideal, and the normal life and the rest of the interference people that lead to influence people's healthy problem even when serious.
In order to achieve the above object, the present invention provides the following technical solutions: a silencer for an automobile exhaust pipeline comprises a silencing shell, wherein the interior of the silencing shell is of a hollow structure, and a silencing mechanism is arranged in the silencing shell;
the silencing mechanism comprises a first baffle plate, a second baffle plate is arranged at the bottom of the first baffle plate, a first silencing cavity, a second silencing cavity and a third silencing cavity are formed in the silencing shell through the first baffle plate and the second baffle plate, a connecting pipe is arranged in the first silencing cavity, the top and the bottom of the connecting pipe are fixedly connected with the inner wall of the first silencing cavity, a silencing pipe is arranged at one side of the connecting pipe, one side of the silencing pipe is fixedly connected with the connecting pipe, a plurality of air outlet holes are formed in the surface of the silencing pipe, a plurality of fixing rings are arranged at the other side of the silencing pipe, one sides of the fixing rings are fixedly connected with the inner wall of the first silencing cavity, two elastic fixing rods are fixedly connected at one side of the fixing rings, a flow guide cover is fixedly connected at one side of the elastic fixing rods, a silencing net is arranged in the second silencing cavity, and the top and the bottom of the silencing net are fixedly connected with the inner wall of the second silencing cavity, amortization net piece one side is provided with soundproof cotton, soundproof cotton top and bottom all with second amortization intracavity wall fixed connection, third amortization intracavity portion is provided with a plurality of amortization barrier plates, and is a plurality of amortization barrier plate one side equal third amortization intracavity wall fixed connection, the gas pocket has all been seted up with second baffle one side to first baffle, first baffle all is provided with first sound absorption cotton with second baffle top and bottom, first sound absorption cotton one side is provided with first asbestos layer, first asbestos layer one side is connected with first sound absorption cotton.
Further, an air inlet pipeline is arranged on one side of the silencing shell, and one end of the air inlet pipeline penetrates through the silencing shell and is in threaded connection with the connecting pipe.
Further, the inside filter core that is provided with of admission line, filter core one side is connected with the admission line inner wall.
Further, amortization shells inner wall is provided with the second and inhales the sound cotton, the second is inhaled sound cotton one side and is provided with the second asbestos layer, second asbestos layer one side is inhaled sound cotton one side with the second and is connected.
Further, a high-temperature-resistant coating is arranged on the other side of the second asbestos layer, and one side of the high-temperature-resistant coating is connected with the second asbestos layer.
Further, the surface of the silencing blocking plate is provided with a plurality of silencing protrusions, and one side of each silencing protrusion is fixedly connected with the silencing blocking plate.
Further, the other side of the silencing shell is provided with an exhaust pipeline, and one end of the exhaust pipeline penetrates through the inner wall of the silencing shell and is fixedly connected with the silencing shell.
The utility model has the advantages of as follows:
1. through the arrangement of the silencing mechanism, the waste gas can be divided into a plurality of small strands to enter the first silencing cavity through the air outlet hole and the air guide sleeve on the silencing pipe, the flow rate and the pressure of the waste gas can be adjusted, so that the air pressure in the first silencing cavity is kept in a relatively balanced state, the situation that the accelerator is suddenly stepped on in a driving process is guaranteed not to increase noise is guaranteed, then, the noise is reduced and absorbed through the mutual matching use of a silencing net piece and soundproof cotton, the noise volume is reduced, finally, the waste gas enters the third silencing cavity, the noise is blocked and isolated through a plurality of silencing barrier plates, the noise reduction effect is improved, the tail gas noise phenomenon is effectively solved through a multiple noise reduction mode, the influence of traffic noise on the life of people is reduced, and a comfortable living environment is provided for people;
2. through setting up the filter core, the high temperature resistant coating, sound cotton and second asbestos layer are inhaled to the second, can carry out secondary filter to the waste gas through in the admission line through the filter core, thereby alleviate the pollution that follow-up waste gas brought when discharging, and inhale sound cotton and second asbestos layer on the amortization shells inner wall, the syllable-dividing effect of amortization casing has been guaranteed, the noise can not pass away from the amortization casing, the temperature resistance of amortization casing can be guaranteed to the high temperature resistant coating simultaneously, avoid the amortization casing to be heated for a long time and lead to damaging, improve the life of amortization casing.
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 should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
FIG. 1 is a schematic view of an overall structure of a muffler for an exhaust pipe of an automobile;
FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;
FIG. 3 is a schematic cross-sectional view taken at H-H in FIG. 1 according to the present invention;
fig. 4 is a schematic view of the connection structure of the first asbestos layer and the first sound-absorbing cotton with the first partition board and the second partition board of the present invention;
in the figure: 1. a sound-deadening housing; 2. a first separator; 3. a second separator; 4. a connecting pipe; 5. a sound-deadening tube; 6. a fixing ring; 7. an elastic fixing rod; 8. a pod; 9. a sound attenuation mesh sheet; 10. sound insulation cotton; 11. a noise reduction barrier plate; 12. a first layer of asbestos; 13. a first sound absorbing cotton; 14. an air intake duct; 15. a filter element; 16. the second sound-absorbing cotton; 17. a second layer of asbestos; 18. a high temperature resistant coating; 19. a sound deadening bulge; 20. an exhaust duct; 21. a first muffling chamber; 22. a second muffling chamber; 23. and a third sound-deadening chamber.
Detailed Description
Other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses certain embodiments of the invention, and it is intended that all such features, aspects and advantages of the invention be considered as including, but not limited to, the specific embodiments disclosed herein. Based on the utility model provides a, all other that ordinary skilled in the art obtained under the prerequisite of not making creative work all belong to the scope of the utility model protection.
Referring to the attached figures 1-4 of the specification, the automobile exhaust pipeline silencer comprises a silencing shell 1, wherein the interior of the silencing shell 1 is of a hollow structure, and a silencing mechanism is arranged inside the silencing shell 1.
The silencing mechanism comprises a first clapboard 2, a second clapboard 3 is arranged at the bottom of the first clapboard 2, a first silencing cavity 21, a second silencing cavity 22 and a third silencing cavity 23 are formed in a silencing shell 1 through the first clapboard 2 and the second clapboard 3, a connecting pipe 4 is arranged in the first silencing cavity 21, the top and the bottom of the connecting pipe 4 are fixedly connected with the inner wall of the first silencing cavity 21, a silencing pipe 5 is arranged at one side of the connecting pipe 4, one side of the silencing pipe 5 is fixedly connected with the connecting pipe 4, a plurality of air outlet holes are arranged on the surface of the silencing pipe 5, a plurality of fixing rings 6 are arranged at the other side of the silencing pipe 5, one sides of the fixing rings 6 are fixedly connected with the inner wall of the first silencing cavity 21, two elastic fixing rods 7 are fixedly connected at one side of the fixing rings 6, a flow guide cover 8 is fixedly connected at one side of the elastic fixing rods 7, a silencing net sheet 9 is arranged in the second silencing cavity 22, the top and the bottom of the silencing net sheet 9 are fixedly connected with the inner wall of the second silencing cavity 22, amortization net piece 9 one side is provided with soundproof cotton 10, soundproof cotton 10 top and bottom all with second amortization chamber 22 inner wall fixed connection, third amortization intracavity 23 inside is provided with a plurality of amortization barrier plates 11, the equal third amortization intracavity 23 inner wall fixed connection in a plurality of amortization barrier plates 11 one side, the gas pocket has all been seted up to first baffle 2 and 3 one sides of second baffle, first baffle 2 all is provided with first sound absorption cotton 13 with 3 tops of second baffle and bottom, first sound absorption cotton 13 one side is provided with first asbestos layer 12, first asbestos layer 12 one side is connected with first sound absorption cotton 13.
The implementation mode is specifically as follows: during the in-service use, when engine exhaust waste gas and noise enter into hush pipe 5, through the venthole on hush pipe 5, divide into a plurality of little share with waste gas and get into first hush chamber 21, then flow velocity and pressure through kuppe 8 in first hush chamber 21 regulation waste gas, make first hush chamber 21 internal gas pressure keep more balanced state, thereby guaranteed to step on the throttle suddenly in the driving and can not increase the noise, then noise and tail gas enter into second hush chamber 22 through the air vent, use through amortization net piece 9 and soundproof cotton 10 mutually supporting, fall the noise and absorb the noise, reduce the volume of noise, waste gas enters into third hush chamber 23 at last, block the noise through a plurality of amortization barrier plates 11 and insulate, the effect of making an uproar is reduced.
As shown in fig. 2, an air inlet pipe 14 is disposed at one side of the muffling enclosure 1, one end of the air inlet pipe 14 penetrates through the muffling enclosure 1 and is in threaded connection with the connecting pipe 4, and exhaust gas discharged from the engine enters the interior of the muffling enclosure through the air inlet pipe 14.
As shown in fig. 2, a filter element 15 is arranged inside the air inlet pipe 14, one side of the filter element 15 is connected with the inner wall of the air inlet pipe 14, and the filter element 15 is used for carrying out secondary filtration on the exhaust gas discharged from the engine and simultaneously adsorbing and eliminating peculiar smell carried in the exhaust gas.
As shown in fig. 3, the inner wall of the silencing shell 1 is provided with a second sound-absorbing cotton 16, one side of the second sound-absorbing cotton 16 is provided with a second asbestos layer 17, one side of the second asbestos layer 17 is connected with one side of the second sound-absorbing cotton 16, the sound-insulating effect of the silencing shell 1 is ensured by the sound-absorbing cotton and the second asbestos layer 17, and the noise can not be transmitted out from the silencing shell 1.
As shown in fig. 3, the other side of the second asbestos layer 17 is provided with a high-temperature-resistant coating 18, one side of the high-temperature-resistant coating 18 is connected with the second asbestos layer 17, the temperature resistance of the silencing shell 1 is ensured through the high-temperature-resistant coating 18, the silencing shell 1 is prevented from being damaged due to long-time heating, and the service life of the silencing shell 1 is prolonged.
As shown in the attached drawing 1, the surface of the silencing blocking plate 11 is provided with a plurality of silencing protrusions 19, one side of each silencing protrusion 19 is fixedly connected with the silencing blocking plate 11, and the noise can be refracted for many times through the silencing protrusions 19 on the blocking plate, so that the noise reduction effect is improved.
As shown in fig. 1, an exhaust duct 20 is disposed at the other side of the silencing case 1, one end of the exhaust duct 20 penetrates through the inner wall of the silencing case 1 and is fixedly connected with the silencing case 1, and the exhaust gas inside the silencing case is discharged through the exhaust duct 20.
The implementation mode is specifically as follows: when in actual use, when engine exhaust's waste gas enters into the internal portion of noise reduction box through admission line 14, filter core 15 through among admission line 14 can carry out secondary filter to engine exhaust's waste gas, and inhale sound cotton and second asbestos layer 17 on the amortization casing 1 inner wall, the syllable-dividing effect of amortization casing 1 has been guaranteed, the noise can not be passed away from amortization casing 1, the temperature toleration of amortization casing 1 can be guaranteed to high temperature resistant coating 18 simultaneously, avoid amortization casing 1 to be heated for a long time and lead to damaging, improve the life of amortization casing 1.
The utility model discloses a use as follows: when in actual use, the exhaust gas and noise discharged by the engine enter the connecting pipe 4 through the air inlet pipe 14, then enter the silencing pipe 5 through the connecting pipe 4, meanwhile, the filter element 15 in the air inlet pipe 14 can perform secondary filtration on the exhaust gas discharged from the engine, then the exhaust gas is divided into a plurality of small strands through the air outlet hole on the silencing pipe 5, and enters the first silencing cavity 21, then the flow rate and pressure of the exhaust gas are adjusted through the flow guide cover 8 in the first silencing cavity 21, so that the air pressure in the first silencing cavity 21 is kept in a balanced state, thereby ensuring that the noise cannot be increased when the accelerator is suddenly stepped on in a traveling vehicle, then the noise and the exhaust gas enter the second silencing cavity 22 through the air through hole, the noise reduction and absorption are performed on the noise through the mutual matching use of the silencing net sheet 9 and the soundproof cotton 10, the volume of the noise is reduced, and then the exhaust gas enters the third silencing cavity 23 through the air through hole on the second clapboard 3, through a plurality of amortization blocking plate 11 in the third amortization chamber 23 and the amortization arch 19 on the amortization blocking plate 11, block and refract the noise, improve the effect of making an uproar that falls, then discharge the inside waste gas of amortization box to the air through exhaust duct 20, so whole exhaust process has just ended.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that certain modifications and improvements may be made to the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.

Claims (7)

1. The utility model provides an automobile exhaust duct muffler, includes amortization casing (1), its characterized in that: the interior of the silencing shell (1) is of a hollow structure, and a silencing mechanism is arranged in the silencing shell (1);
the silencing mechanism comprises a first partition plate (2), a second partition plate (3) is arranged at the bottom of the first partition plate (2), a first silencing cavity (21), a second silencing cavity (22) and a third silencing cavity (23) are formed in the silencing shell (1) through the first partition plate (2) and the second partition plate (3), a connecting pipe (4) is arranged in the first silencing cavity (21), the top and the bottom of the connecting pipe (4) are fixedly connected with the inner wall of the first silencing cavity (21), a silencing pipe (5) is arranged on one side of the connecting pipe (4), one side of the silencing pipe (5) is fixedly connected with the connecting pipe (4), a plurality of air outlet holes are formed in the surface of the silencing pipe (5), a plurality of fixing rings (6) are arranged on the other side of the silencing pipe (5), one sides of the fixing rings (6) are fixedly connected with the inner wall of the first silencing cavity (21), two elastic fixing rods (7) are fixedly connected to one sides of the fixing rings (6), a flow guide cover (8) is fixedly connected to one side of each elastic fixing rod (7), a silencing net piece (9) is arranged inside the second silencing cavity (22), the top and the bottom of each silencing net piece (9) are fixedly connected with the inner wall of the second silencing cavity (22), soundproof cotton (10) is arranged on one side of each silencing net piece (9), the top and the bottom of each soundproof cotton (10) are fixedly connected with the inner wall of the second silencing cavity (22), a plurality of silencing barrier plates (11) are arranged inside the third silencing cavity (23), the inner walls of the third silencing cavity (23) are fixedly connected to one sides of the silencing barrier plates (11), air passing holes are formed in one sides of the first partition plate (2) and the second partition plate (3), first sound absorbing cotton (13) is arranged at the top and the bottom of the first partition plate (2) and the second partition plate (3), first asbestos layer (12) is provided with on one side of first sound absorption cotton (13), first asbestos layer (12) one side is connected with first sound absorption cotton (13).
2. The muffler of claim 1, wherein: and an air inlet pipeline (14) is arranged on one side of the silencing shell (1), and one end of the air inlet pipeline (14) penetrates through the silencing shell (1) and is in threaded connection with the connecting pipe (4).
3. The muffler for an exhaust pipe of an automobile according to claim 2, wherein: the air inlet pipeline (14) is internally provided with a filter element (15), and one side of the filter element (15) is connected with the inner wall of the air inlet pipeline (14).
4. The muffler of claim 1, wherein: the sound attenuation casing (1) inner wall is provided with the second and inhales sound cotton (16), sound cotton (16) one side is inhaled to the second and is provided with second asbestos layer (17), sound cotton (16) one side is inhaled with the second to second asbestos layer (17) one side and is connected.
5. The muffler for an exhaust pipe of an automobile according to claim 4, wherein: the other side of the second asbestos layer (17) is provided with a high-temperature-resistant coating (18), and one side of the high-temperature-resistant coating (18) is connected with the second asbestos layer (17).
6. The muffler of claim 1, wherein: the surface of the silencing blocking plate (11) is provided with a plurality of silencing protrusions (19), and one side of each silencing protrusion (19) is fixedly connected with the silencing blocking plate (11).
7. The muffler of claim 1, wherein: the other side of the silencing shell (1) is provided with an exhaust pipeline (20), and one end of the exhaust pipeline (20) penetrates through the inner wall of the silencing shell (1) and is fixedly connected with the silencing shell (1).
CN202023277536.8U 2020-12-30 2020-12-30 Silencer for automobile exhaust pipeline Active CN214741558U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023277536.8U CN214741558U (en) 2020-12-30 2020-12-30 Silencer for automobile exhaust pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023277536.8U CN214741558U (en) 2020-12-30 2020-12-30 Silencer for automobile exhaust pipeline

Publications (1)

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CN214741558U true CN214741558U (en) 2021-11-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202023277536.8U Active CN214741558U (en) 2020-12-30 2020-12-30 Silencer for automobile exhaust pipeline

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024037333A1 (en) * 2022-08-17 2024-02-22 峰飞航空科技(昆山)有限公司 Engine noise reduction structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024037333A1 (en) * 2022-08-17 2024-02-22 峰飞航空科技(昆山)有限公司 Engine noise reduction structure

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