CN211116217U

CN211116217U - Exhaust pipe with noise reduction function

Info

Publication number: CN211116217U
Application number: CN201921411014.7U
Authority: CN
Inventors: 段焯
Original assignee: Tianjin Jieao Zhengtong Technology Co ltd
Current assignee: Tianjin Jieao Zhengtong Technology Co ltd
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2020-07-28
Anticipated expiration: 2029-08-28

Abstract

The utility model discloses a blast pipe with amortization function, including amortization pipe casing, the inside fixed a plurality of acoustic celotex boards that are provided with of amortization pipe casing, it is a plurality of acoustic celotex board outside fixed surface is provided with the amortization cotton, the fixed outlet duct that is provided with in amortization pipe casing one side, the inside fixed amortization stopper that is provided with of outlet duct, the equal fixed connecting block that is provided with in casing upper end both sides, the fixed mounting panel that is provided with in connecting block upper end, the mounting hole has been seted up on mounting panel outside surface, the fixed connecting pipe that is provided with of one end that the outlet duct was kept away from to amortization pipe casing, the fixed first flange that is provided with of one end that. The utility model discloses the result of use is better, can improve the message effect to can further reduce its sound when automobile exhaust tail gas, play further noise cancelling effect.

Description

Exhaust pipe with noise reduction function

Technical Field

The utility model relates to a vehicle accessory technical field specifically is an blast pipe with amortization function.

Background

The exhaust pipe is one part of an engine exhaust system, the exhaust system mainly comprises an exhaust manifold, an exhaust pipe and a silencer, a three-calibration catalyst for controlling the emission of pollutants of an engine is generally arranged in the exhaust system, the exhaust pipe generally comprises a front exhaust pipe and a rear exhaust pipe, the rear half section of the conventional exhaust pipe is provided with a silencing pipe, and the silencing device of the conventional automobile exhaust pipe is internally filled with silencing cotton. But because the silencing pipe length is limited only through its noise cancelling effect of limited amortization cotton general, still can send great noise, the result of use is relatively poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an blast pipe with amortization function to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an exhaust pipe with a silencing function comprises a silencing pipe shell, wherein a plurality of sound insulation boards are fixedly arranged inside the silencing pipe shell, silencing cotton is fixedly arranged on the outer side surfaces of the sound insulation boards, an air outlet pipe is fixedly arranged on one side of the shell of the silencing pipe, a silencing plug is fixedly arranged in the air outlet pipe, the two sides of the upper end of the shell are both fixedly provided with connecting blocks, the upper end of each connecting block is fixedly provided with a mounting plate, the outer side surface of the mounting plate is provided with a mounting hole, one end of the silencing pipe shell far away from the air outlet pipe is fixedly provided with a connecting pipe, the pipe comprises a pipe shell and is characterized in that one end, far away from the silencing pipe shell, of the connecting pipe is fixedly provided with a first connecting flange, one side, far away from the connecting pipe, of the first connecting flange is fixedly provided with a second connecting flange through screws, and one side, far away from the silencing pipe shell, of the second connecting flange is fixedly provided with an exhaust pipe body.

Preferably, a sealing ring is fixedly arranged on the surface of one side, close to the second connecting flange, of the first connecting flange, a clamping groove is formed in the surface of one side, close to the first connecting flange, of the second connecting flange, and the sealing ring can be clamped in the clamping groove when the first connecting flange and the second connecting flange are installed, so that the sealing effect of the device is improved.

Preferably, the protective cover is movably screwed on the outer side surfaces of the first connecting flange and the second connecting flange through threads, and the protective cover can protect screws used for connecting the first connecting flange and the second connecting flange, so that the fixed screws are prevented from rusting and being not easy to detach after being used for a long time.

Preferably, the four corners of the outer side surface of the lower end of the silencing pipe shell are fixedly provided with protective shells through screws, and the silencing pipe shell can be prevented from being damaged due to the fact that gravels impact the silencing pipe shell when a vehicle runs.

Preferably, the outer surface of the lower end of the protection shell is fixedly provided with a rubber pad, and the protection effect of the protection shell can be further improved through the rubber pad.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses inside tail gas enters into the muffler casing through the blast pipe during use, circulate in the passageway that the acoustic celotex board formed, can contact with acoustic celotex board and soundproof cotton many times in less space to the kinetic energy of effect tail gas, thereby reach the purpose of amortization, tail gas after the passageway of at last through winding tortuous acoustic celotex board can be followed the outlet duct and discharged, at this moment can also go on further amortization through the amortization stopper, improve device's result of use.

2. The utility model discloses when first flange is fixed together with second flange, can insert the sealing washer the draw-in groove and screw up the screw afterwards with first flange and second flange together fixed, fill in the draw-in groove back through the sealing washer, through forming sealed effect between sealing washer self tension and the draw-in groove to improve the leakproofness that amortization pipe casing and blast pipe body are in the same place, can prevent through the protection casing that the vehicle has the rubble striking to lead to the amortization pipe casing to damage when driving.

Drawings

Fig. 1 is a schematic view of the overall structure of an exhaust pipe with a sound-deadening function according to the present invention;

fig. 2 is a schematic view of an overall structure of a first connecting flange and a second connecting flange with a sound-deadening function according to the present invention;

fig. 3 is a front view of the present invention with a noise reduction function.

In the figure: 1. a muffler pipe housing; 2. a sound insulating board; 3. silencing cotton; 4. an air outlet pipe; 5. a silencing plug; 6. connecting blocks; 7. mounting a plate; 8. mounting holes; 9. a connecting pipe; 10. a first connecting flange; 11. a second connecting flange; 12. an exhaust pipe body; 13. a seal ring; 14. a card slot; 15. a protective cover; 16. and protecting the shell.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an exhaust pipe with a silencing function comprises a silencing pipe shell 1, wherein a plurality of sound insulation boards 2 are fixedly arranged inside the silencing pipe shell 1, silencing cotton 3 is fixedly arranged on the outer side surfaces of the sound insulation boards 2, an air outlet pipe 4 is fixedly arranged on one side of the silencing pipe shell 1, a silencing plug 5 is fixedly arranged in the air outlet pipe 4, the two sides of the upper end of the shell are both fixedly provided with connecting blocks 6, the upper end of each connecting block 6 is fixedly provided with a mounting plate 7, the outer side surface of the mounting plate 7 is provided with a mounting hole 8, one end of the silencing pipe shell 1 far away from the air outlet pipe 4 is fixedly provided with a connecting pipe 9, a first connecting flange 10 is fixedly arranged at one end of the connecting pipe 9 far away from the silencing pipe shell, a second connecting flange 11 is fixedly arranged at one side of the first connecting flange 10 far away from the connecting pipe 9 through screws, and an exhaust pipe body 12 is fixedly arranged on one side, away from the silencer casing 1, of the second connecting flange 11.

A sealing ring 13 is fixedly arranged on one side surface of the first connecting flange 10 close to the second connecting flange 11, a clamping groove 14 is arranged on one side surface of the second connecting flange 11 close to the first connecting flange 10, the sealing ring 13 can be clamped in the clamping groove 14 when the first connecting flange 10 and the second connecting flange 11 are installed, so that the sealing effect of the device is improved, a protective cover 15 is movably screwed on the outer side surfaces of the first connecting flange 10 and the second connecting flange 11 through threads, screws used for connecting the first connecting flange 10 and the second connecting flange 11 can be protected through the protective cover 15, the fixed screws are prevented from rusting and being not easily detached after being used for a long time, protective shells 16 are fixedly arranged at four corners of the outer side surface of the lower end of the silencing tube shell 1 through the screws, and the silencing tube shell 1 can be prevented from being damaged due to the fact that gravels impact on the silencing tube shell 1 when a vehicle runs through the protective shells 16, the outer surface of the lower end of the protection shell 16 is fixedly provided with a rubber pad, and the protection effect of the protection shell 16 can be further improved through the rubber pad.

The working principle is as follows: before the device is used, the first connecting flange 10 and the second connecting flange 11 can be fixed together through screws, so that the silencing pipe shell 1 is connected with the exhaust pipe body 12, when the first connecting flange 10 and the second connecting flange 11 are fixed together, the sealing ring 13 can be inserted into the clamping groove 14, then the first connecting flange 10 and the second connecting flange 11 are fixed together through screwing screws, after the sealing ring 13 is plugged into the clamping groove 14, a sealing effect is formed between the self-tension of the sealing ring 13 and the clamping groove 14, so that the sealing performance of the connection of the silencing pipe shell 1 and the exhaust pipe body 12 is improved, then the device can be fixedly installed at the bottom of a vehicle through the installation plate 7 and the installation hole 8, when the device is used, tail gas enters the silencing pipe shell 1 through the exhaust pipe and flows in a channel formed by the sound insulation plate 2, and can be contacted with the sound insulation plate 2 and sound insulation cotton for multiple times in a small space, thereby the kinetic energy of effect tail gas to reach the purpose of amortization, tail gas after the passageway of final process tortuous acoustic celotex board 2 can be followed outlet duct 4 discharges, can also carry out further amortization through amortization stopper 5 at this moment, improve the result of use of device, can prevent through protection casing 16 that the vehicle has the rubble striking to take amortization pipe casing 1 to lead to amortization pipe casing 1 to damage when going at last, this is exactly the utility model relates to a theory of operation of blast pipe with sound deadening function.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An exhaust pipe with a silencing function, comprising a silencing pipe casing (1), characterized in that: the silencer is characterized in that a plurality of sound insulation boards (2) are fixedly arranged inside the silencer shell (1), silencing cotton (3) is fixedly arranged on the outer side surface of the sound insulation boards (2), an outlet pipe (4) is fixedly arranged on one side of the silencer shell (1), a silencing plug (5) is fixedly arranged inside the outlet pipe (4), connecting blocks (6) are fixedly arranged on two sides of the upper end of the shell, a mounting plate (7) is fixedly arranged on the upper end of each connecting block (6), a mounting hole (8) is formed in the outer side surface of each mounting plate (7), a connecting pipe (9) is fixedly arranged at one end, far away from the outlet pipe (4), of the silencer shell (1), a first connecting flange (10) is fixedly arranged at one end, far away from a silencing pipe shell, of the first connecting flange (10), and a second connecting flange (11) is fixedly arranged at, and an exhaust pipe body (12) is fixedly arranged on one side, away from the silencing pipe shell (1), of the second connecting flange (11).

2. An exhaust pipe having a sound deadening function according to claim 1, wherein: a sealing ring (13) is fixedly arranged on the surface of one side, close to the second connecting flange (11), of the first connecting flange (10), and a clamping groove (14) is formed in the surface of one side, close to the first connecting flange (10), of the second connecting flange (11).

3. An exhaust pipe having a sound deadening function according to claim 1, wherein: the outer side surfaces of the first connecting flange (10) and the second connecting flange (11) are movably screwed with a protective cover (15) through threads.

4. An exhaust pipe having a sound deadening function according to claim 1, wherein: the four corners of the outer side surface of the lower end of the silencing pipe shell (1) are fixedly provided with a protective shell (16) through screws.

5. An exhaust pipe having a sound deadening function according to claim 4, wherein: and a rubber pad is fixedly arranged on the outer surface of the lower end of the protection shell (16).