CN205977325U

CN205977325U - Vehicle vent -pipe muffler

Info

Publication number: CN205977325U
Application number: CN201621030397.XU
Authority: CN
Inventors: 沈跃忠; 马中健; 胡颖杰
Original assignee: Pinghu Aichiwei Auto Parts Co Ltd
Current assignee: Pinghu Aichiwei Auto Parts Co Ltd
Priority date: 2016-08-30
Filing date: 2016-08-30
Publication date: 2017-02-22
Anticipated expiration: 2026-08-30

Abstract

The utility model discloses a vehicle vent -pipe muffler, including muffler shell, intake pipe and blast pipe, muffler shell one end is equipped with the intake pipe, the muffler shell other end is equipped with the blast pipe, the muffler shell surface is equipped with the sound absorbing layer, an inside acoustic celotex board, no. Two acoustic celotex boards and no. Three acoustic celotex boards of being equipped with of muffler shell, be equipped with no. One the amortization chamber between acoustic celotex board and no. Two acoustic celotex boards, be equipped with no. Two the amortization chamber between no. Two acoustic celotex boards and no. Three acoustic celotex boards, no. One amortization intracavity portion is equipped with the hush pipe no. One, no. Two amortization intracavity portion is equipped with the hush pipe no. Two. The utility model discloses a set up the hush pipe into curved curved structure, increased the range ability of noise in the pipeline, improved noise cancelling effect to through amortization chamber and the sound absorbing layer that is equipped with, can carry out multiple amortization simultaneously, improved noise cancelling effect. Simple structure has satisfied the market demand.

Description

A kind of automobile exhaust pipe deafener

【Technical field】

This utility model is related to auto parts machinery field, particularly to a kind of automobile exhaust pipe deafener.

【Background technology】

At present, automobile has come in the life of average family, can produce noise miscellaneous, vapour during running car Vehicle exhaust noise is exactly one of car noise, controls, with to car noise, the raising requiring, on automobile exhaust pipe also all Load onto deafener, the design of deafener is progressively paid attention to, but the structure of current automobile exhaust muffler is also complex, noise reduction Effect need to be improved.For this reason, a kind of it is proposed that automobile exhaust pipe deafener.

【Utility model content】

Main purpose of the present utility model is to provide a kind of automobile exhaust pipe deafener, can be with effectively solving background technology In problem.

For achieving the above object, the technical scheme that this utility model is taken is：

A kind of automobile exhaust pipe deafener, including muffler shell, air inlet pipe and exhaustor, described muffler shell one end It is provided with air inlet pipe, the described muffler shell other end is provided with exhaustor, described muffler shell surface is provided with sound absorbing layer, described disappear Sound device enclosure interior is provided with a baffle, No. two baffles and No. three baffles, a described baffle and No. two baffles Between be provided with a silencing cavity, be provided with No. two silencing cavity, a described noise reduction between described No. two baffles and No. three baffles Intracavity portion is provided with a hush pipe, is provided with No. two hush pipes inside described No. two silencing cavity.

Further, described air inlet pipe is fixedly connected with a baffle, and a described hush pipe and a baffle are solid Fixed connection, a described hush pipe and No. two baffles are fixedly connected, and described No. two hush pipes and No. two baffles are fixedly connected, Described No. two hush pipes and No. three baffles are fixedly connected, and described No. three baffles of exhaustor are fixedly connected.

Further, described sound absorbing layer is made up of rock wool.

Compared with prior art, this utility model has the advantages that：This utility model is by arranging hush pipe For bending structure, increased range ability in pipeline for the noise, improve erasure effect, and the silencing cavity by being provided with And sound absorbing layer, multiple noise reduction can be carried out simultaneously, improve erasure effect.Structure is simple, meets the market demand.

【Brief description】

Fig. 1 is the overall structure diagram of this utility model automobile exhaust pipe deafener.

In figure：1st, muffler shell；2nd, air inlet pipe；3rd, exhaustor；4th, sound absorbing layer；5th, a baffle；6th, No. two sound insulations Plate；7th, No. three baffles；8th, a silencing cavity；9th, No. two silencing cavity；10th, a hush pipe；11st, No. two hush pipes.

【Specific embodiment】

Technological means, creation characteristic, reached purpose and effect for making this utility model realize are easy to understand, below In conjunction with specific embodiment, this utility model is expanded on further.

As shown in figure 1, a kind of automobile exhaust pipe deafener, including muffler shell 1, air inlet pipe 2 and exhaustor 3, described Muffler shell 1 one end is provided with air inlet pipe 2, and described muffler shell 1 other end is provided with exhaustor 3, described muffler shell 1 table Face is provided with sound absorbing layer 4, is provided with 5, No. two baffles 6 of a baffle and No. three baffles 7, institute inside described muffler shell 1 State and between a baffle 5 and No. two baffles 6, be provided with a silencing cavity 8, described No. two baffles 6 and No. three baffles 7 it Between be provided with No. two silencing cavity 9, be provided with a hush pipe 10 inside a described silencing cavity 8, be provided with inside described No. two silencing cavity 9 No. two hush pipes 11.

This utility model automobile exhaust pipe deafener, this utility model, by hush pipe is set to bending structure, increases Add range ability in pipeline for the noise, improve erasure effect, and the silencing cavity by being provided with and sound absorbing layer, Neng Goutong The multiple noise reduction of Shi Jinhang, improves erasure effect.Structure is simple, meets the market demand.

Wherein, described air inlet pipe 2 is fixedly connected with a baffle 5, and a described hush pipe 10 and a baffle 5 are solid Fixed connection, a described hush pipe 10 is fixedly connected with No. two baffles 6, and described No. two hush pipes 11 and No. two baffles 6 are solid Fixed connection, described No. two hush pipes 11 are fixedly connected with No. three baffles 7, and described 3 No. three baffles 7 of exhaustor are fixedly connected, Ensure gas not sinuous flow in muffler shell 1, do not result in secondary noise pollution.

Wherein, described sound absorbing layer 4 is made up of rock wool, and erasure effect is more preferable.

It should be noted that this utility model is a kind of automobile exhaust pipe deafener, during work, gas passes through air inlet pipe 2 Enter in a silencing cavity 8, and complete first time noise reduction in a hush pipe 10, be then re-introduced into No. two silencing cavity 9, and complete second noise reduction in No. two hush pipes 11, discharge finally by exhaustor 3.By hush pipe is set to bend Shape structure, increased range ability in pipeline for the noise, improves erasure effect, and muffler shell 1 surface increased Sound absorbing layer 4, preferably enhances erasure effect.

Of the present utility model ultimate principle and principal character and of the present utility model advantage have been shown and described above.One's own profession The technical staff of industry it should be appreciated that this utility model is not restricted to the described embodiments, described in above-described embodiment and description Principle of the present utility model is simply described, on the premise of without departing from this utility model spirit and scope, this utility model is also Have various changes and modifications, these changes and improvements both fall within the range of claimed this utility model.This utility model Claimed scope is by appending claims and its equivalent thereof.

Claims

1. a kind of automobile exhaust pipe deafener, including muffler shell（1）, air inlet pipe（2）And exhaustor（3）It is characterised in that： Described muffler shell（1）One end is provided with air inlet pipe（2）, described muffler shell（1）The other end is provided with exhaustor（3）, described Muffler shell（1）Surface is provided with sound absorbing layer（4）, described muffler shell（1）Inside is provided with a baffle（5）, No. two every Soundboard（6）With No. three baffles（7）, a described baffle（5）With No. two baffles（6）Between be provided with a silencing cavity（8）, Described No. two baffles（6）With No. three baffles（7）Between be provided with No. two silencing cavity（9）, a described silencing cavity（8）Inside sets There is a hush pipe（10）, described No. two silencing cavity（9）Inside is provided with No. two hush pipes（11）.

2. automobile exhaust pipe deafener according to claim 1 it is characterised in that：Described air inlet pipe（2）With a sound insulation Plate（5）It is fixedly connected, a described hush pipe（10）With a baffle（5）It is fixedly connected, a described hush pipe（10）With No. two baffles（6）It is fixedly connected, described No. two hush pipes（11）With No. two baffles（6）It is fixedly connected, described No. two noise reductions Pipe（11）With No. three baffles（7）It is fixedly connected, described exhaustor（3）No. three baffles（7）It is fixedly connected.

3. automobile exhaust pipe deafener according to claim 1 it is characterised in that：Described sound absorbing layer（4）It is made up of rock wool.