CN203009006U - Exhaust silencer - Google Patents

Exhaust silencer Download PDF

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Publication number
CN203009006U
CN203009006U CN 201220647030 CN201220647030U CN203009006U CN 203009006 U CN203009006 U CN 203009006U CN 201220647030 CN201220647030 CN 201220647030 CN 201220647030 U CN201220647030 U CN 201220647030U CN 203009006 U CN203009006 U CN 203009006U
Authority
CN
China
Prior art keywords
chamber
expansion cavity
dividing plate
exhaust silencer
rear end
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220647030
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Chinese (zh)
Inventor
艾刚
郑智勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING BEIBEI DISTRICT FENGHUO MACHINERY MANUFACTURING Co Ltd
Original Assignee
CHONGQING BEIBEI DISTRICT FENGHUO MACHINERY MANUFACTURING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHONGQING BEIBEI DISTRICT FENGHUO MACHINERY MANUFACTURING Co Ltd filed Critical CHONGQING BEIBEI DISTRICT FENGHUO MACHINERY MANUFACTURING Co Ltd
Priority to CN 201220647030 priority Critical patent/CN203009006U/en
Application granted granted Critical
Publication of CN203009006U publication Critical patent/CN203009006U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an exhaust silencer which comprises an expansion cavity, a gas inlet pipe and an exhaust pipe. The expansion cavity comprises a front end cover, a cavity wall and a rear end cover; the expansion cavity comprises a cavity I, a cavity II and a cavity III which are independent of each other and are sequentially communicated; the exhaust end of the gas inlet pipe is communicated to the cavity II; and the gas inlet end of the exhaust pipe is communicated to the cavity I. The exhaust silencer has a simple structure, and can well fulfill the aim of silencing and reduce noise interference and damage to people.

Description

Exhaust silencer
Technical field
The utility model relates to silencing apparatus field, particularly a kind of exhaust silencer.
Background technique
The sound of life around the interference that ambient noise refers to produce in industrial production, construction, communications and transportation and social life.Pollution from environmental noise refers to that the ambient noise that produces surpasses the ambient noise emission standard of national regulation, and disturbs the phenomenon of other people normal life, working and learning.
Raising along with industrialization degree, noise hazard scope expanding day, traffic noise becomes topmost noise source in current urban environment noise, and exhaust sound is the Main Noise Sources of automobile and motor thereof, and adopting silencing apparatus is to control the most effective noise reduction means that exhaust sound generally adopts.In prior art, the problem such as silencing apparatus exists the air-flow buffer number of times few, and soundproof effect is undesirable.
Therefore, need to improve silencing apparatus, the noise air-flow is fully cushioned in silencing apparatus, reach desirable soundproof effect, thereby reduce noise interference and injury to the people.
The model utility content
In view of this, the utility model provides a kind of exhaust silencer, and the noise air-flow is fully cushioned in silencing apparatus, reaches desirable soundproof effect, thereby reduces noise interference and injury to the people.
A kind of exhaust silencer of the present utility model, comprise expansion cavity, suction tude and outlet pipe, described expansion cavity comprises front cover, chamber wall and rear end cover, described expansion cavity comprises chamber I, chamber II and chamber III separate and that be communicated with successively, described suction tude exhaust end is communicated in described chamber II, and the inlet end of described outlet pipe is communicated in described chamber I.
Further, described chamber I, chamber II and chamber III are by being split to form perpendicular to chamber wall and the dividing plate I that be arranged in parallel and dividing plate II, be provided with the breathing pipe I that is communicated with described chamber I and chamber III on described dividing plate I and dividing plate II, be provided with the breathing pipe II that is communicated with described chamber II and chamber III on described dividing plate II.
Further, described suction tude is passed described rear end cover and dividing plate II successively, and described outlet pipe is the U-shaped structure, and it passes successively dividing plate I and dividing plate II and turns back and pass successively dividing plate II and dividing plate I.
Further, described suction tude comprises the intake elbow and the air inlet straight tube that is placed in expansion cavity that is placed in the rear end cover outside, described air inlet straight tube and described rear end cover inner side surface contact jaw are provided with the flange I and are fixedly connected on described rear end cover by the bolt I that is embedded in rear end cover, and described intake elbow is provided with the flange II and is fixedly connected with by the bolt II with described rear end cover outer side surface connecting end.
Further, described flange I and bolt I contacting point add resilient pad.
Further, described flange II and described rear end cover contacting point add gasket seal.
Further, wall inboard, described expansion cavity chamber is provided with thermal baffle, adds heat insulation foam between described thermal baffle and described expansion cavity chamber wall.
Further, described expansion cavity outer wall is provided with the mounting bracket that is fixedly connected with for motor, described mounting bracket and the described expansion cavity outer wall contacting point shape for adapting with described expansion cavity outer wall.
Further, add stiffening plate between described mounting bracket and described expansion cavity outer wall.
Further, the cross section of described expansion cavity is oval.
The beneficial effects of the utility model: exhaust silencer of the present utility model, by two dividing plates that be arranged in parallel, the silencing apparatus expansion cavity is divided into three chambers, can make the noise air-flow in three buffer cavitys with chamber wall multiple impacts, reach the purpose of abundant buffering, and then realize soundproof effect; Outlet pipe is made as the U-shaped structure, can make the noise air-flow in the U-shaped pipe in flow process with tube wall generation multiple impacts, increase the irregularity of air-flow, reach better soundproof effect; The utility model is simple in structure, can reach preferably the purpose of noise elimination, reduces noise interference and injury to the people.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is further described.
Fig. 1 is the utility model structure sectional view;
Fig. 2 is that Figure 1A is to view;
Fig. 3 is that Figure 1B is to view.
Embodiment
Fig. 1 is the utility model structure sectional view, Fig. 2 is that Figure 1A is to view, Fig. 3 is that Figure 1B is to view, as shown in the figure: the exhaust silencer of the present embodiment, comprise expansion cavity, suction tude 1 and outlet pipe 2, described expansion cavity comprises front cover 3, chamber wall 5 and rear end cover 4, and described expansion cavity comprises chamber I 8, chamber II 9 and chamber III 10 separate and that be communicated with successively, described suction tude 1 exhaust end is communicated in described chamber II 9, and the inlet end of described outlet pipe 2 is communicated in described chamber I 8.
In the present embodiment, described chamber I 8, chamber II 9 and chamber III 10 are by being split to form perpendicular to chamber wall 5 and the dividing plate I 6 that be arranged in parallel and dividing plate II 7, be provided with the breathing pipe I 11 that is communicated with described chamber I 8 and chamber III 10 on described dividing plate I 6 and dividing plate II 7, be provided with the breathing pipe II 12 that is communicated with described chamber II 9 and chamber III 10 on described dividing plate II 7.
In the present embodiment, described suction tude 1 is passed described rear end cover 4 and dividing plate II 7 successively, and described outlet pipe 2 is the U-shaped structure, and it passes successively dividing plate I 6 and dividing plate II 7 and turns back and pass successively dividing plate II 7 and dividing plate I (6); The outlet pipe of U-shaped structure can make the noise air-flow in the U-shaped pipe in flow process with tube wall generation multiple impacts, increase the irregularity of air-flow, reach better soundproof effect.
In the present embodiment, described suction tude 1 comprises the intake elbow 101 and the air inlet straight tube 102 that is placed in expansion cavity that is placed in rear end cover 4 outsides, described air inlet straight tube 102 is provided with flange I 13 and is fixedly connected on described rear end cover 4 by the bolt I 14 that is embedded in rear end cover with described rear end cover 4 inner side surface contact jaws, and described intake elbow 101 is provided with flange II 15 and is fixedly connected with by bolt II 16 with described rear end cover 4 outer side surface connecting ends; Suction tude is divided into two sections, more quick detachable and installation, and fix firmly by flange, easy to connect, be easy to realize.
In the present embodiment, described flange I 13 adds resilient pad 17 with bolt I 14 contacting points; Increase the tightness that is connected between flange I and bolt I, make connection more firm.
In the present embodiment, described flange II 15 adds gasket seal with described rear end cover 4 contacting points; Guarantee the connection sealing of suction tude and rear end cover.
In the present embodiment, wall inboard, described expansion cavity chamber is provided with thermal baffle 18; Add heat insulation foam 19 between described thermal baffle 18 and described expansion cavity chamber wall; The setting of thermal baffle and heat insulation foam not only can reach good effect of heat insulation, also can further improve the soundproof effect of expansion cavity.
In the present embodiment, described expansion cavity outer wall is provided with for the mounting bracket 20 that is fixedly connected with motor, described mounting bracket 20 and the described expansion cavity outer wall contacting point shape for adapting with described expansion cavity outer wall; Make muffler body more firm and firm with being connected of motor.
In the present embodiment, add stiffening plate 21 between described mounting bracket 20 and described expansion cavity outer wall; Improve the stable connection of mounting bracket and expansion cavity outer wall.
In the present embodiment, the cross section of described expansion cavity is oval.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.

Claims (10)

1. exhaust silencer, comprise expansion cavity, suction tude (1) and outlet pipe (2), described expansion cavity comprises front cover (3), chamber wall (5) and rear end cover (4), it is characterized in that: described expansion cavity comprises chamber I (8), chamber II (9) and chamber III (10) separate and that be communicated with successively, described suction tude (1) exhaust end is communicated in described chamber II (9), and the inlet end of described outlet pipe (2) is communicated in described chamber I (8).
2. exhaust silencer according to claim 1, it is characterized in that: described chamber I (8), chamber II (9) and chamber III (10) are by being split to form perpendicular to chamber wall (5) and the dividing plate I (6) that be arranged in parallel and dividing plate II (7), be provided with the breathing pipe I (11) that is communicated with described chamber I (8) and chamber III (10) on described dividing plate I (6) and dividing plate II (7), be provided with the breathing pipe II (12) that is communicated with described chamber II (9) and chamber III (10) on described dividing plate II (7).
3. exhaust silencer according to claim 2, it is characterized in that: described suction tude (1) is passed described rear end cover (4) and dividing plate II (7) successively, described outlet pipe (2) is the U-shaped structure, and it passes successively dividing plate I (6) and dividing plate II (7) and turns back and pass successively dividing plate II (7) and dividing plate I (6).
4. exhaust silencer according to claim 3, it is characterized in that: described suction tude (1) comprises the intake elbow (101) that is placed in rear end cover (4) outside and is placed in the interior air inlet straight tube (102) of expansion cavity, described air inlet straight tube (102) is provided with flange I (13) and is fixedly connected on described rear end cover (4) by the bolt I (14) that is embedded in rear end cover with described rear end cover (4) inner side surface contact jaw, described intake elbow (101) is provided with flange II (15) and is fixedly connected with by bolt II (16) with described rear end cover (4) outer side surface connecting end.
5. exhaust silencer according to claim 4 is characterized in that: described flange I (13) adds resilient pad (17) with bolt I (14) contacting point.
6. exhaust silencer according to claim 5 is characterized in that: described flange II (15) adds gasket seal with described rear end cover (4) contacting point.
7. exhaust silencer according to claim 6, it is characterized in that: wall inboard, described expansion cavity chamber is provided with thermal baffle (18), adds heat insulation foam (19) between described thermal baffle (18) and described expansion cavity chamber wall.
8. exhaust silencer according to claim 7, it is characterized in that: described expansion cavity outer wall is provided with for the mounting bracket that is fixedly connected with motor (20), described mounting bracket (20) and the described expansion cavity outer wall contacting point shape for adapting with described expansion cavity outer wall.
9. exhaust silencer according to claim 8, is characterized in that: add stiffening plate (21) between described mounting bracket (20) and described expansion cavity outer wall.
10. exhaust silencer according to claim 9 is characterized in that: the cross section of described expansion cavity is for oval.
CN 201220647030 2012-11-30 2012-11-30 Exhaust silencer Expired - Fee Related CN203009006U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220647030 CN203009006U (en) 2012-11-30 2012-11-30 Exhaust silencer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220647030 CN203009006U (en) 2012-11-30 2012-11-30 Exhaust silencer

Publications (1)

Publication Number Publication Date
CN203009006U true CN203009006U (en) 2013-06-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220647030 Expired - Fee Related CN203009006U (en) 2012-11-30 2012-11-30 Exhaust silencer

Country Status (1)

Country Link
CN (1) CN203009006U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105201594A (en) * 2015-10-21 2015-12-30 无锡惠山泵业有限公司 Automobile exhaust silencer
CN105927315A (en) * 2016-06-16 2016-09-07 沈阳理工大学 Impedance compound silencer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105201594A (en) * 2015-10-21 2015-12-30 无锡惠山泵业有限公司 Automobile exhaust silencer
CN105927315A (en) * 2016-06-16 2016-09-07 沈阳理工大学 Impedance compound silencer

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130619

Termination date: 20141130

EXPY Termination of patent right or utility model