CN218493660U

CN218493660U - Exhaust pipe silencer

Info

Publication number: CN218493660U
Application number: CN202222542493.4U
Authority: CN
Inventors: 李啸尘; 王希杰
Original assignee: Chongqing Hiter Automotive Exhaust Systems Co ltd
Current assignee: Chongqing Hiter Automotive Exhaust Systems Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-02-17
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses a blast pipe silencer, including a hush air cylinder body, the sealed end cover that is equipped with in both ends of hush air cylinder body, be equipped with the gas pocket on the end cover, this internal interval of hush air cylinder is provided with two baffles, and passes through the baffle is formed with first cavity, second cavity and third cavity, fixed mounting has intake pipe, outlet duct and scavenge pipe on the baffle, the one end of intake pipe is located in the third cavity, the other end with the gas pocket intercommunication, the one end of outlet duct is located in the first cavity, the other end with the gas pocket intercommunication, the both ends of scavenge pipe are located respectively in first cavity and the third cavity, in the second cavity the circumference of intake pipe, outlet duct and scavenge pipe all is equipped with the exhaust hole. The utility model discloses can be better carry on the low frequency fall make an uproar, fall make an uproar obvious, simple structure, convenient to use.

Description

Exhaust pipe silencer

Technical Field

The utility model relates to a muffler technical field, concretely relates to blast pipe silencer.

Background

When the automobile engine discharges the waste gas, the pressure of the waste gas is rapidly changed at the exhaust pipe orifice, vibration is generated, and the vibration generates noise. In the prior art, a silencer is arranged in an exhaust pipe of an automobile engine, and is used for consuming airflow energy, reducing the pressure fluctuation amplitude of the airflow and playing a role of reducing noise, so that the silencer is a device for preventing sound from being transmitted and allowing the airflow to pass through, and is an important measure for eliminating aerodynamic noise. Most of existing silencers on the market reduce medium-high frequency noise, and for low frequency noise, the existing silencers can reduce low frequency noise.

Therefore, in order to solve the above problems, a better low-frequency noise reduction, obvious noise reduction, simple structure and convenient use of the low-frequency muffler for the automobile is needed.

Disclosure of Invention

To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide one kind can be better carry on the low frequency fall make an uproar, fall make an uproar obvious, simple structure, convenient to use's blast pipe silencer.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides an exhaust pipe silencer, includes a noise damping section of thick bamboo body, the sealed end cover that is equipped with in both ends of noise damping section of thick bamboo body, be equipped with the gas pocket on the end cover, this internal interval of noise damping section of thick bamboo is provided with two baffles, and passes through the baffle is formed with first cavity, second cavity and third cavity, fixed mounting has intake pipe, outlet duct and scavenge pipe on the baffle, the one end of intake pipe is located in the third cavity, the other end with the gas pocket intercommunication, the one end of outlet duct is located in the first cavity, the other end with the gas pocket intercommunication, the both ends of scavenge pipe are located respectively in first cavity and the third cavity, in the second cavity the circumference of intake pipe, outlet duct and scavenge pipe all is equipped with the exhaust hole.

Like this, waste gas gets into the muffler body through the intake pipe, a small amount of waste gas and noise energy can get into first cavity and second cavity through the exhaust hole, get into first cavity, collide and refract with the inner wall of cavity behind the second cavity, and waste gas and noise energy can rub each other, thereby play the effect of making an uproar falls in the amortization, more waste gas and noise energy get into the third cavity, after getting into the third cavity, collide and refract with the inner wall of third cavity, and waste gas and noise energy can rub each other, thereby play the effect of making an uproar falls in the amortization, waste gas and noise energy of third cavity can get into first cavity and second cavity through the scavenge pipe, continue to make an uproar falls in the amortization, after waste gas gets into the blast pipe, exhaust hole on the blast pipe can make waste gas and noise energy discharge equally, also can play the effect of making an uproar falls in the amortization.

Furthermore, a plurality of exhaust holes are arranged on the clapboard. Through the exhaust hole on the baffle, make waste gas and noise energy remove between each cavity, can better carry out the amortization and fall the noise.

Further, one side of the partition board is provided with an installation groove. Through the mounting groove, the installation of baffle is convenient for.

Furthermore, the exhaust holes in the air inlet pipe are located at one end, close to the air inlet pipe, connected with the air holes, and a plurality of exhaust holes are formed in the circumferential direction of the air inlet pipe located in the first cavity. Through the position setting with the exhaust hole in the one end of keeping away from the export, can be convenient for waste gas and noise energy discharge from the intake pipe, improve the efficiency and the effect of making an uproar fall in the amortization.

Furthermore, the exhaust hole on the exhaust pipe is positioned at one end close to the exhaust pipe connected with the air hole. Through the position setting with the exhaust hole in the one end that is close to the export, can be convenient for waste gas and noise energy discharge from the blast pipe, improve the efficiency and the effect of making an uproar fall in the amortization.

To sum up, the utility model discloses can be better carry out the low frequency and fall make an uproar, fall make an uproar obviously, simple structure, convenient to use.

Drawings

Fig. 1 is a schematic structural view of an exhaust pipe muffler according to an embodiment of the present invention.

Fig. 2 is a schematic view of fig. 1 with a portion of the assembly removed and in another orientation.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In specific implementation, as shown in fig. 1-2, an exhaust pipe muffler includes a muffling barrel body 1, end caps 2 are hermetically disposed at two ends of the muffling barrel body 1, air holes 3 are disposed on the end caps, two partition plates 4 are disposed in the muffling barrel body 2 at intervals, a first chamber 401, a second chamber 402 and a third chamber 403 are formed by the partition plates 4, an air inlet pipe 5, an air outlet pipe 6 and a ventilation pipe 7 are fixedly mounted on the partition plates 4, one end of the air inlet pipe 5 is disposed in the third chamber 403, the other end of the air inlet pipe is communicated with the air holes 3, one end of the air outlet pipe 6 is disposed in the first chamber 401, the other end of the air outlet pipe is communicated with the air holes 3, two ends of the ventilation pipe 7 are respectively disposed in the first chamber 401 and the third chamber 403, and exhaust holes 8 are circumferentially disposed in the air inlet pipe 5, the air outlet pipe 6 and the ventilation pipe 7 in the second chamber 402. Like this, waste gas gets into the muffler body through the intake pipe, a small amount of waste gas and noise energy can get into first cavity and second cavity through the exhaust hole, get into first cavity, collide and refract with the inner wall of cavity behind the second cavity, and waste gas and noise energy can rub each other, thereby play the effect of making an uproar falls in the amortization, more waste gas and noise energy get into the third cavity, after getting into the third cavity collide and refract with the inner wall of third cavity, and waste gas and noise energy can rub each other, thereby play the effect of making an uproar falls in the amortization, the waste gas and the noise energy of third cavity can get into first cavity and second cavity through the scavenge pipe, continue to carry out the amortization and fall and make an uproar, after waste gas gets into the blast pipe, exhaust hole on the blast pipe can make waste gas and noise energy discharge equally, also can play the effect of making an uproar falls in the amortization.

In this embodiment, the partition plate 4 is provided with a plurality of exhaust holes 8. Through the exhaust hole on the baffle, make waste gas and noise energy remove between each cavity, can better carry out the amortization and fall the noise.

In this embodiment, one side of the partition board 4 is provided with a mounting groove 9. Through the mounting groove, the installation of baffle is convenient for.

In this embodiment, the exhaust holes 8 on the air inlet pipe 5 are located near one end of the air inlet pipe 5 connected with the air hole 3, and a plurality of exhaust holes 8 are arranged in the circumferential direction of the air inlet pipe 5 located in the first cavity 401. Through the position setting with the exhaust hole in the one end of keeping away from the export, can be convenient for waste gas and noise energy discharge from the intake pipe, improve the efficiency and the effect of making an uproar fall in the amortization.

In this embodiment, the exhaust hole 8 of the exhaust pipe 7 is located near the end of the exhaust pipe 7 connected to the air hole 3. Through the position setting with the exhaust hole in the one end that is close to the export, can be convenient for waste gas and noise energy discharge from the blast pipe, improve the efficiency and the effect of making an uproar fall in the amortization.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides an exhaust pipe silencer, its characterized in that, includes a noise damping section of thick bamboo body, the sealed end cover that is equipped with in both ends of noise damping section of thick bamboo body, be equipped with the gas pocket on the end cover, this internal interval of noise damping section of thick bamboo is provided with two baffles, and passes through the baffle is formed with first cavity, second cavity and third cavity, fixed mounting has intake pipe, outlet duct and scavenge pipe on the baffle, the one end of intake pipe is located in the third cavity, the other end with the gas pocket intercommunication, the one end of outlet duct is located in the first cavity, the other end with the gas pocket intercommunication, the both ends of scavenge pipe are located respectively in first cavity and the third cavity, in the second cavity the circumference of intake pipe, outlet duct and scavenge pipe all is equipped with the exhaust hole.

2. The exhaust pipe muffler of claim 1 wherein the partition is provided with a plurality of exhaust ports.

3. The exhaust pipe muffler according to claim 1, wherein one side of the partition plate is provided with a mounting groove.

4. The exhaust pipe muffler according to claim 1, wherein the exhaust hole of the inlet pipe is located near an end of the inlet pipe connected to the air hole, and a plurality of exhaust holes are formed in the first chamber around the inlet pipe.

5. The exhaust pipe muffler according to claim 1, wherein the exhaust hole of the exhaust pipe is located near an end of the exhaust pipe connected to the air hole.