CN111042896A

CN111042896A - Tuning silencer for automobile exhaust pipe

Info

Publication number: CN111042896A
Application number: CN201911310142.7A
Authority: CN
Inventors: 魏志帅
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-04-21

Abstract

The invention discloses a tuning silencer for an automobile exhaust pipe, which relates to the field of automobile parts and comprises a silencing pipe and a main air inlet pipe, wherein one end of the main air inlet pipe, which is close to the silencing pipe, is fixedly connected with two branch air inlet pipes, the two branch air inlet pipes are respectively and fixedly connected with a first branch air inlet pipe and a second branch air inlet pipe, the first branch air inlet pipe and the second branch air inlet pipe penetrate through the silencing pipe and are arranged in the silencing pipe, and one end of the first branch air inlet pipe, which is far away from the branch air inlet pipes, is fixedly connected with a communicating pipe.

Description

Tuning silencer for automobile exhaust pipe

Technical Field

The invention relates to the field of automobile parts, in particular to a tuning silencer for an automobile exhaust pipe.

Background

The exhaust pipe is connected with an engine exhaust manifold, so that the whole exhaust system is in flexible connection, the effects of reducing vibration and noise, facilitating installation and prolonging the service life of a noise elimination system are achieved, the exhaust pipe is generally provided with a silencing device at the tail end, the sound generated by exhaust is reduced through the silencing device, and the exhaust pipe discharges waste to generate noise. Exhaust noise is one of the major sources of motor vehicle noise, and reducing exhaust noise is the major approach to reducing vehicle noise.

The chinese utility model patent document with publication number CN206617209U discloses a tuning silencer for automobile exhaust pipe, and this silencer has realized the multistage amortization to automobile exhaust through being equipped with once amortization pipe, secondary amortization pipe and cubic amortization pipe, and the tail gas that will enter into in the silencer main part through the rotating vane that is equipped with simultaneously gets into with the spiral, improves noise cancelling effect, but only relies on built-in amortization pipe to be not strong enough to the eliminating ability of sound wave, has the further improvement of treating.

Disclosure of Invention

The invention aims to provide a tuning silencer for an automobile exhaust pipe, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a vehicle vent-pipe tuning silencer, includes hush pipe and main intake pipe, and two reposition of redundant personnel return bends of one end fixed connection that main intake pipe is close to hush pipe, and two reposition of redundant personnel return bends are the first intake pipe of fixed connection and the intake pipe of second respectively, and first intake pipe and the intake pipe of second all pass hush pipe and place inside it, and the one end fixed connection communicating pipe of reposition of redundant personnel return bend is kept away from to first intake pipe, and communicating pipe and the intake pipe fixed connection of second, the first porous pipe of intake pipe fixed connection of second, the both sides of first porous pipe are equipped with amortization baffle and amortization otter board respectively, and the outside of first porous pipe is equipped with annular silencing device, the hush pipe keeps away from the one.

As a further scheme of the invention: the annular silencing device comprises an annular fixed cover, a silencing chamber is arranged in the annular fixed cover, a plurality of annular silencing plates are fixedly arranged in the silencing chamber, and silencing cotton is filled at the bottom end of the silencing chamber.

As a further scheme of the invention: and third silencing holes which are uniformly distributed are formed in the annular silencing plate.

As a further scheme of the invention: the first perforated pipe is provided with first silencing holes which are uniformly distributed.

As a further scheme of the invention: and a plurality of reflection bulges are fixedly arranged on the silencing baffle and the silencing screen plate.

As a further scheme of the invention: one side of the silencing screen plate, which is far away from the first porous pipe, is provided with a fixing plate, the fixing plate penetrates through and is fixedly connected with a plurality of second porous pipes, and the second porous pipes are provided with uniformly distributed second silencing holes.

As a further scheme of the invention: the inner walls of the first air inlet pipe and the second air inlet pipe are fixedly connected with a plurality of baffle rings, and the baffle rings are obliquely arranged.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the sound wave can be reflected by the silencing screen plate and the silencing baffle plate so as to reduce the energy of the sound wave, the sound wave can be absorbed by the annular silencing device so as to reduce the noise of the sound wave, the airflow can be dredged and the sound can be silenced by arranging the first porous pipe and the second porous pipe, the noise generated when the automobile exhaust is discharged is greatly weakened, and the noise reduction capability is strong.

Drawings

FIG. 1 is a schematic structural diagram of an automobile exhaust pipe tuning muffler.

FIG. 2 is a schematic structural diagram of an annular silencing device in a tuning silencer of an automobile exhaust pipe.

Fig. 3 is a schematic perspective structure diagram of a silencing baffle in an automobile exhaust pipe tuning silencer.

In the figure: 1-silencing pipe, 2-main air inlet pipe, 3-shunt elbow pipe, 4-first air inlet pipe, 5-second air inlet pipe, 6-communicating pipe, 7-first porous pipe, 8-silencing baffle, 9-annular silencing device, 10-silencing screen, 11-fixing plate, 12-second porous pipe, 13-first silencing hole, 14-second silencing hole, 15-tail pipe, 16-annular fixing cover, 17-silencing chamber, 18-annular silencing plate, 19-third silencing hole, 20-silencing cotton, 21-baffle ring and 22-reflection projection.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1-3, a tuning silencer for an automobile exhaust pipe comprises a silencing pipe 1 and a main intake pipe 2, wherein one end of the main intake pipe 2, which is close to the silencing pipe 1, is fixedly connected with two branch bent pipes 3, the two branch bent pipes 3 are respectively and fixedly connected with a first branch intake pipe 4 and a second branch intake pipe 5, the first branch intake pipe 4 and the second branch intake pipe 5 both penetrate through the silencing pipe 1 and are arranged inside the silencing pipe, one end of the first branch intake pipe 4, which is far away from the branch bent pipes 3, is fixedly connected with a communicating pipe 6, the communicating pipe 6 is fixedly connected with the second branch intake pipe 5, the second branch intake pipe 5 is fixedly connected with a first perforated pipe 7, two sides of the first perforated pipe 7 are respectively provided with a silencing baffle 8 and a silencing screen plate 10, the outer side of the first perforated pipe 7 is provided with an annular silencing device 9, and one end.

The annular silencing device 9 comprises an annular fixing cover 16, a silencing chamber 17 is arranged in the annular fixing cover 16, a plurality of annular silencing plates 18 are fixedly arranged in the silencing chamber 17, silencing cotton 20 is filled at the bottom end of the silencing chamber 17, third silencing holes 19 which are uniformly distributed are formed in the annular silencing plates 18, first silencing holes 13 which are uniformly distributed are formed in the first porous pipe 7, a plurality of reflecting protrusions 22 are fixedly arranged on the silencing baffle plate 8 and the silencing screen plate 10, a fixing plate 11 is arranged on one side, away from the first porous pipe 7, of the silencing screen plate 10, a plurality of second porous pipes 12 penetrate through and are fixedly connected to the fixing plate 11, and second silencing holes 14 which are uniformly distributed are formed in the second porous pipes 12.

Example 2

Referring to fig. 1-3, the other contents of the present embodiment are the same as embodiment 1, except that: the inner walls of the first air inlet pipe 4 and the second air inlet pipe 5 are fixedly connected with a plurality of baffle rings 21, and the baffle rings 21 are obliquely arranged.

According to the automobile exhaust silencing device, the silencing screen plate 10 and the silencing baffle plate 8 are arranged, sound waves can be reflected, so that the energy of the sound waves is reduced, the annular silencing device 9 can absorb the sound waves, so that the sound noise is reduced, airflow can be dredged and silenced by arranging the first porous pipe 7 and the second porous pipe 12, noise generated during automobile exhaust emission is greatly weakened, and the noise reduction capability is strong.

Claims

1. A tuning silencer of an automobile exhaust pipe comprises a silencing pipe (1) and a main air inlet pipe (2), and is characterized in that one end, close to the silencing pipe (1), of the main air inlet pipe (2) is fixedly connected with two shunt elbows (3), the two shunt elbows (3) are respectively and fixedly connected with a first air inlet pipe (4) and a second air inlet pipe (5), the first air inlet pipe (4) and the second air inlet pipe (5) penetrate through the silencing pipe (1) and are arranged in the silencing pipe, one end, far away from the shunt elbows (3), of the first air inlet pipe (4) is fixedly connected with a communicating pipe (6), the communicating pipe (6) is fixedly connected with the second air inlet pipe (5), the second air inlet pipe (5) is fixedly connected with a first porous pipe (7), silencing baffles (8) and mesh plate silencing devices (10) are respectively arranged on two sides of the first porous pipe (7), and an annular silencing device (9) is arranged on the outer side of, one end of the silencing pipe (1) far away from the main air inlet pipe (2) is fixedly connected with an exhaust tail pipe (15).

2. The automobile exhaust pipe tuning muffler is characterized in that the annular silencing device (9) comprises an annular fixed cover (16), a silencing chamber (17) is arranged in the annular fixed cover (16), a plurality of annular silencing plates (18) are fixedly arranged in the silencing chamber (17), and the bottom end of the silencing chamber (17) is filled with silencing cotton (20).

3. The tuning muffler for automobile exhaust pipes according to claim 2, characterized in that the annular sound-absorbing plate (18) is provided with third sound-absorbing holes (19) which are uniformly distributed.

4. The tuning muffler for the exhaust pipe of the automobile as claimed in claim 1, wherein the first perforated pipe (7) is provided with first tuning holes (13) uniformly distributed.

5. The tuning muffler for the automobile exhaust pipe according to claim 3 or 4, wherein a plurality of reflecting protrusions (22) are fixedly arranged on the silencing baffle (8) and the silencing screen plate (10).

6. The tuning muffler for the exhaust pipe of the automobile according to claim 1, wherein a fixing plate (11) is disposed on a side of the silencing screen plate (10) away from the first perforated pipe (7), a plurality of second perforated pipes (12) penetrate through and are fixedly connected to the fixing plate (11), and the second perforated pipes (12) are provided with second silencing holes (14) uniformly distributed.

7. The tuning muffler for the automobile exhaust pipe according to claim 1, wherein a plurality of baffle rings (21) are fixedly connected to the inner walls of the first branch intake pipe (4) and the second branch intake pipe (5), and the baffle rings (21) are obliquely arranged.