CN203604013U - Automobile muffler - Google Patents

Automobile muffler Download PDF

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Publication number
CN203604013U
CN203604013U CN201320735651.6U CN201320735651U CN203604013U CN 203604013 U CN203604013 U CN 203604013U CN 201320735651 U CN201320735651 U CN 201320735651U CN 203604013 U CN203604013 U CN 203604013U
Authority
CN
China
Prior art keywords
via hole
inner via
rivet
hole
barrel
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
CN201320735651.6U
Other languages
Chinese (zh)
Inventor
谷加银
李功赋
刘全有
吴成明
冯擎峰
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.)
Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
Original Assignee
Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute 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 Zhejiang Geely Holding Group Co Ltd, Zhejiang Geely Automobile Research Institute Co Ltd filed Critical Zhejiang Geely Holding Group Co Ltd
Priority to CN201320735651.6U priority Critical patent/CN203604013U/en
Application granted granted Critical
Publication of CN203604013U publication Critical patent/CN203604013U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides an automobile muffler and belongs to the technical field of automobiles. The automobile muffler solves the technical problem an automobile muffler in the prior art is short in service life. The automobile muffler comprises an outer barrel, wherein an inner barrel is arranged in the outer barrel, a plurality of inner through holes are formed in the wall of the inner barrel, and outer through holes in one-to-one correspondence to the inner through holes are formed in the wall of the outer barrel. The automobile muffler further comprises a plurality of plugs, wherein the inner ends of the plugs are inserted into the inner through holes to achieve the sealing effect, the outer ends of the plugs are inserted into the outer through holes in one-to-one correspondence to the inner through holes, and each plug is further provided with drainage holes penetrating through the inner end and the outer end of the plug. The automobile muffler has the advantages of being long in service life, convenient to assemble and the like.

Description

A kind of automotive muffler
Technical field
The utility model belongs to automobile technical field, relates to a kind of automotive muffler.
Background technique
Automotive muffler is the constituent elements that automobile is conventional, is conducive to reduce the noise pollution in vehicle traveling process, utilizes sound wave stack principle of interference to be made.Automobile noise is mainly from automobile exhaust noise.If do not add silencing apparatus, under certain speed, noise can reach more than 100 decibels.Secondly be engine noise and tyre noise, engine noise, in the time that automobile runs well, can reach more than 90 decibels, and tyre noise the speed of a motor vehicle be 90 kilometers/time when above, can reach 95 decibels of left and right.And in vent systems, add silencing apparatus, can make automobile exhaust reducing noise 20-30 decibel.
China patent CN102146826A discloses a kind of main muffler of automobile engine exhaust system, it comprises cylindrical shell, suction tude, outlet pipe, middle pressure chamber A, low-pressure cavity B and hyperbaric chamber C, cylindrical shell is made up of inner barrel, the first clathrum, the second clathrum and outer cylinder body, first, second clathrum is two-layer to intersect and two-layer stacked form is installed between inside and outside cylindrical shell mutually with grid, ventilation bar water hole is set on inner barrel, weep hole is set on outer cylinder body.This invention can prevent that the external cylinder body outer wall of high temperature and high pressure gas from causing direct impact, reduces vibration, radiation noise and the impact on indoor comfort; Can prevent from producing ponding in inner barrel, avoid dividing plate, end cap and air inlet and exhaust piper etc. corroded by ponding simultaneously.So both improve the travelling comfort of car load, saved again user's maintenance cost, the working life of greatly having improved again main muffler.
But, the water in above-mentioned silencing apparatus from ventilation bar water hole and weep hole flow out time, due to both disalignments, water in silencing apparatus is easy to stay between inner barrel and outer cylinder body, can not discharge in time, the parts such as cylindrical shell and clathrum are caused to corrosion, reduce the working life of silencing apparatus.
Summary of the invention
The purpose of this utility model is the problems referred to above that exist for existing technology, and a kind of automotive muffler is provided, and technical problem to be solved in the utility model is: the working life of how to improve automotive muffler.
The purpose of this utility model can realize by following technical proposal:
A kind of automotive muffler, this silencing apparatus comprises an outer cylinder body, in described outer cylinder body, be installed with an inner barrel, it is characterized in that, on the barrel of described inner barrel, offer several inner via holes, on the barrel of described outer cylinder body, offer and described inner via hole accessibke porosity one to one, this silencing apparatus also comprises several chock plugs, the inner of described chock plug is plugged in inner via hole and forms and seal, the outer end of this chock plug is plugged in the accessibke porosity corresponding with described inner via hole, and on described chock plug, also offers the weep hole that runs through the inside and outside two ends of this chock plug.
Waste gas in vent systems after silencing apparatus, part waste gas condensation Cheng Shui, water directly the weep hole from chock plug discharge; Owing to conventionally can thering is certain space or cavity between the outer cylinder body in existing silencing apparatus and inner barrel; in this silencing apparatus, be designed with after chock plug; the water that waste gas condensation forms the directly weep hole from chock plug is discharged; can not accumulate in the space or cavity between outer cylinder body and inner barrel; avoid moisture content to cause corrosion to the component in the cavity between outer cylinder body, inner barrel and inside and outside cylindrical shell, improve the working life of automotive muffler.
In above-mentioned a kind of automotive muffler, described chock plug is the rivet that offers through hole, this through hole is described weep hole, described rivet comprises the rivet head and the rivet bar that are connected as a single entity, inner via hole described in described rivet bar is plugged in is with in the accessibke porosity corresponding with this inner via hole, and described rivet head is fixed on the inwall of described inner barrel.Chock plug is designed to rivet, the rigidity of rivet and corrosion resistance are all better, and rivet head is fixed on inwall and fits with inwall, avoid moisture content to penetrate into corrosion removal inner barrel from the surface of contact between rivet head and inwall, thereby improve the working life of this silencing apparatus.
In above-mentioned a kind of automotive muffler, the inwall welded seal of described rivet head and described inner barrel, the side of described rivet bar and the hole wall of described inner via hole are welded to each other fixing, and the outer end of this rivet bar stretches out and forms a diversion division through described accessibke porosity.Rivet head and the welding of inner barrel inwall, rivet bar side and the welding of inner via hole hole wall, both anti-sealing infiltrated in the space between inside and outside cylindrical shell, guarantee again join strength, can guarantee that water directly flows out from weep hole and be designed with diversion division, can not be stained with on outer cylinder body outer cylinder body is caused to corrosion, improve the working life of silencing apparatus.
In above-mentioned a kind of automotive muffler, described diversion division length is 0.5mm to 1.5mm.The length of diversion division is positioned at above-mentioned scope, has both guaranteed when water flows out from weep hole can not be stained with on outer cylinder body, avoids again the long waste of material that causes of diversion division.
In above-mentioned a kind of automotive muffler, described inner via hole coaxially arranges with the accessibke porosity corresponding with this inner via hole, and the diameter of this accessibke porosity is greater than the diameter of described inner via hole.The diameter of accessibke porosity is greater than the diameter of inner via hole, gives the reserved welding of the welding space of rivet and inner barrel, convenient for assembly.
In above-mentioned a kind of automotive muffler, as another kind of scheme, described chock plug comprises a rubber stopper, this rubber stopper and described inner via hole and accessibke porosity interference fit, and be also coated with an anticorrosion layer on described rubber stopper outer surface.Rubber stopper can be by self elasticity and inner via hole and accessibke porosity interference fit, and assembles up also more simple and conveniently, is also easier to and offer weep hole on rubber stopper, is suitable for producing in batches.
Compared with prior art, the utlity model has following advantage:
1, in this silencing apparatus, be designed with chock plug, the water that waste gas condensation forms can not accumulate in the space or cavity between outer cylinder body and inner barrel, avoid the component in the cavity between outer cylinder body, inner barrel and inside and outside cylindrical shell being caused to corrosion, the high life of silencing apparatus;
2, the rivet bar in this silencing apparatus is provided with diversion division, can guarantee that water directly flows out from weep hole, can not be stained with on outer cylinder body outer cylinder body is caused to corrosion, improves the working life of silencing apparatus;
3, in this silencing apparatus, the diameter of accessibke porosity is greater than the diameter of inner via hole, gives welding reserved the weld space of rivet with inner barrel, easy to assembly.
Accompanying drawing explanation
Fig. 1 is the structural representation of this silencing apparatus in embodiment.
In figure, 1, outer cylinder body; 2, inner barrel; 3, inner via hole; 4, accessibke porosity; 5, chock plug; 6, rivet head; 7, rivet bar; 8, weep hole; 9, diversion division; 10, cavity.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, this silencing apparatus comprises an outer cylinder body 1, in outer cylinder body 1, be installed with an inner barrel 2, outer cylinder body 1 is with the concentric setting of inner barrel 2 and have a cavity 10 between the two, on the barrel of inner barrel 2, offer several inner via holes 3, on the barrel of outer cylinder body 1, offer and inner via hole 3 accessibke porosity 4 one to one, inner via hole 3 and the accessibke porosity 4 corresponding with this inner via hole 3 coaxially arrange, and the diameter of this accessibke porosity 4 is greater than the diameter of inner via hole 3.
As shown in Figure 1, this silencing apparatus also comprises several chock plugs 5, the inner of chock plug 5 is plugged in the interior formation sealing of inner via hole 3, and the outer end of this chock plug 5 is plugged in the accessibke porosity corresponding with inner via hole 34, and on chock plug 5, also offers the weep hole 8 that runs through these chock plug 5 inside and outside two ends.In the present embodiment, chock plug 5 is for offering the rivet of through hole, this through hole is weep hole 8, rivet comprises the rivet head 6 and the rivet bar 7 that are connected as a single entity, rivet head 6 is fixedly welded on the inwall of inner barrel 2 and forms sealing, rivet bar 7 is plugged in inner via hole 3 and the accessibke porosity 4 corresponding with this inner via hole 3, the hole wall of the side of this rivet bar 7 and inner via hole 3 is welded to each other fixing, the outer end of this rivet bar 7 stretches out and forms the long diversion division 9 of a 0.5mm to 1.5mm through accessibke porosity 4, and in the present embodiment, the length of diversion division 9 is preferably 1mm.As other scheme, chock plug 5 also can comprise a rubber stopper, this rubber stopper and inner via hole 3 and accessibke porosity 4 interference fit, and on rubber stopper outer surface, be also coated with an anticorrosion layer.
The working principle of this device is as follows: the waste gas in vent systems after silencing apparatus, part waste gas condensation Cheng Shui, the water directly weep hole 8 from rivet is discharged; Avoid moisture content to accumulate in space between outer cylinder body 1 and inner barrel 2 or cavity 10 and cause corrosion; And rivet is provided with diversion division 9, can guarantee that water directly flows out from weep hole 8, can not be stained with on outer cylinder body 1 outer cylinder body 1 is caused to corrosion, improve the working life of silencing apparatus.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Claims (6)

1. an automotive muffler, this silencing apparatus comprises an outer cylinder body (1), in described outer cylinder body (1), be installed with an inner barrel (2), it is characterized in that, on the barrel of described inner barrel (2), offer several inner via holes (3), on the barrel of described outer cylinder body (1), offer and described inner via hole (3) accessibke porosity (4) one to one, this silencing apparatus also comprises several chock plugs (5), the inner of described chock plug (5) is plugged in inner via hole (3) and forms and seal, the outer end of this chock plug (5) is plugged in the accessibke porosity (4) corresponding with described inner via hole (3), and on described chock plug (5), also offer the weep hole (8) that runs through the inside and outside two ends of this chock plug (5).
2. a kind of automotive muffler according to claim 1, it is characterized in that, described chock plug (5) is for offering the rivet of through hole, this through hole is described weep hole, described rivet comprises the rivet head (6) and the rivet bar (7) that are connected as a single entity, in inner via hole (3) described in described rivet bar (7) is plugged in and the accessibke porosity (4) corresponding with this inner via hole (3), described rivet head (6) is fixed on the inwall of described inner barrel (2).
3. a kind of automotive muffler according to claim 2, it is characterized in that, described rivet head (6) and the inwall welded seal of described inner barrel (2), the hole wall of the side of described rivet bar (7) and described inner via hole (3) is welded to each other fixing, and the outer end of this rivet bar (7) stretches out and forms a diversion division (9) through described accessibke porosity (4).
4. a kind of automotive muffler according to claim 3, is characterized in that, described diversion division (9) length is 0.5mm to 1.5mm.
5. according to a kind of automotive muffler described in claim 1 or 2 or 3 or 4, it is characterized in that, described inner via hole (3) and the accessibke porosity (4) corresponding with this inner via hole (3) coaxially arrange, and the diameter of this accessibke porosity (4) is greater than the diameter of described inner via hole (3).
6. a kind of automotive muffler according to claim 1, it is characterized in that, described chock plug (5) comprises a rubber stopper, this rubber stopper and described inner via hole (3) and accessibke porosity (4) interference fit, and be also coated with an anticorrosion layer on described rubber stopper outer surface.
CN201320735651.6U 2013-11-19 2013-11-19 Automobile muffler Expired - Fee Related CN203604013U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320735651.6U CN203604013U (en) 2013-11-19 2013-11-19 Automobile muffler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320735651.6U CN203604013U (en) 2013-11-19 2013-11-19 Automobile muffler

Publications (1)

Publication Number Publication Date
CN203604013U true CN203604013U (en) 2014-05-21

Family

ID=50716690

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320735651.6U Expired - Fee Related CN203604013U (en) 2013-11-19 2013-11-19 Automobile muffler

Country Status (1)

Country Link
CN (1) CN203604013U (en)

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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
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140521