CN205064066U - Noise elimination structure of automobile exhaust pipe - Google Patents
Noise elimination structure of automobile exhaust pipe Download PDFInfo
- Publication number
- CN205064066U CN205064066U CN201520770108.9U CN201520770108U CN205064066U CN 205064066 U CN205064066 U CN 205064066U CN 201520770108 U CN201520770108 U CN 201520770108U CN 205064066 U CN205064066 U CN 205064066U
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- China
- Prior art keywords
- extension part
- circular groove
- main body
- extension
- exhaust pipe
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a noise elimination structure of automobile exhaust pipe, including main part and end cover, linked firmly the amortization core in the main part, it has first ring channel to open on the main part terminal surface, and outer loop portion and inner ring portion are split into with the open end of main part to first ring channel, and end cover terminal surface evagination forms has first extension and second extension, and the outer wall of first extension is provided with screw A, and the inner wall of first ring channel is equipped with screw B, the outer wall of end cover passes through annular sloped surface A and passes through to first extension, and the terminal surface of outer loop portion sets up to annular sloped surface B, and annular sloped surface A, annular sloped surface B and first extension constitute annular slot -Filler jointly. The utility model discloses in, through the face contact between the screw -thread fit between first extension and the first ring channel and inner ring portion and the second ring channel, the metal binder in the slot -Filler in addition can guarantee the seal of hush pipe when making things convenient for the hush pipe to dismantle for the function of making an uproar of falling of hush pipe remains stable.
Description
Technical field
The utility model relates to a kind of baffler, specifically refers to a kind of automobile exhaust pipe noise-reducing structure.
Background technique
In urban environment, traffic noise is the pollution sources that radiation is the strongest, impact is the widest.In motor vehicle noise, exhaust sound is one of main noise sound source, and its reduction, mainly by installing exhaust silencer, must produce a very large impact motor after fixing a silencer; The power loss of general silencing apparatus, 3% ~ 8%, allows larger power loss when sound deadening capacity is larger; The silencing apparatus of coupling low-powered engine more requires lower power loss.
The car owning amount of China is increasing, and people are no longer only the traffic tool to the requirement of automobile, more require the energy-conserving and environment-protective of car, attractive in appearance and comfortable.The traffic noise of motor vehicle is main sources of urban road noise, and the legislations for noise for automobile will be constantly strict.But when general baffler production and processing, the dissipative muffler of main application on the market at present and reactive muffler, can only process the noise of high frequency or medium and low frequency individually, Applicable scope is wideless, and with regard to dissipative muffler: at high temperature, water vapour and have in the gas of corrosive action to sound-absorbing material, the working life of silencing apparatus is short, to low-frequency noise weak effect; It is excessive that maximum drawback is exactly silencing apparatus power loss.And, owing to there will be the residual of fluid and grease in hush pipe, and then reduce the decrease of noise functions of noise reduction core body, after existing hush pipe is steel plate reel, welding is formed, noise reduction core body is fixed in cylinder, cannot be taken out by noise reduction core body and clean under the prerequisite not destroying cylindrical shell.
Model utility content
The purpose of this utility model is to provide a kind of automobile exhaust pipe noise-reducing structure, realizes rapid-assembling cylindrical shell and noise reduction core body, facilitates the cleaning of noise reduction core body to meet the repeatedly use of hush pipe.
The purpose of this utility model is achieved through the following technical solutions:
A kind of automobile exhaust pipe noise-reducing structure, comprise the main body that the open the other end in one end is closed and the end cap that main body open end can be closed, the noise reduction core body that two ends run through main body closed end and end cap is respectively fixed with in main body, main body open end end face has the first circular groove of indent, the open end of main body is divided into outer portion and is positioned at the internal ring portion of outer portion by the first circular groove, end cap end face evagination is formed with external diameter and is less than end cap external diameter and the first extension part can inserted in the first circular groove and the second extension part being positioned at the first extension part, the inner side of the first extension part and the outside of the second extension part form the second circular groove internal ring portion can inserted jointly, the outer wall circular of the first extension part is provided with screw thread A, the inwall of the first circular groove is provided with the screw thread B that can match with screw thread A, the outer wall of end cap passes through annular slope A to the first extension part transition, the end face of outer portion is set to the annular slope B identical with annular slope A true dip direction, the filling slot of annular slope A, annular slope B and the common looping of the first extension part, fills metal binding agent in filling slot.
During the utility model assembling, first noise reduction core body is put into body interior, then respectively by internal ring portion just to the second circular groove, first extension part is just to after the first circular groove, rotating end cap, by the screw-thread fit between screw thread A and screw thread B, respectively internal ring portion is pushed in the second circular groove, first extension part is pushed in the first circular groove, until the free end end face of internal ring portion contacts with the bottom land of the second circular groove or the free end end face of the first extension part contacts with the bottom land of the first circular groove.Now, the outer wall of annular slope A, annular slope B and the first extension part is then formed with the filling slot of annular, metal binding agent is injected filling slot, thoroughly seals by noise reduction core body.And when needs cleaning noise reduction core body, directly the metal binding agent in the first circular groove is removed, again end cap is rotated backward, being separated between end cap with main body can be realized, noise reduction core body is being reused after cleaning, while the noise reduction efficacy improving hush pipe, reduce the user cost of automobile silencing.Wherein, contacted by the screw-thread fit between the first extension part with the first circular groove and the face between internal ring portion with the second circular groove, add the metal binding agent in filling slot, can while facilitating hush pipe quick-detachment, ensure the seal of hush pipe, make the decrease of noise functions of hush pipe keep stable.
Further, described metal binding agent is BD818 elastic adhesive.Select BD818 elastic adhesive, filling slot is filled fast airtight, and can remove fast by the binder when noise reduction core body needs to change in filling slot, make the topology layout of hush pipe more flexible.
Further, the length of described first extension part is greater than the degree of depth of described first circular groove.The length of the first extension part is set to the degree of depth being greater than the first circular groove, namely when the first extension part end contacts with the first annular groove bottom, can make to leave gap between annular slope A and annular slope B, can ensure that filling slot has one fixed width, to facilitate smearing and removing of metal binding agent.
For strengthening the area of contact between the first extension part and the first circular groove and the area of contact between internal ring portion and the second circular groove, further, the cross section of described first circular groove and described second circular groove is all rectangular.
The utility model compared with prior art, has following advantage and beneficial effect:
1, in the utility model, contacted by the screw-thread fit between the first extension part with the first circular groove and the face between internal ring portion with the second circular groove, add the metal binding agent in filling slot, the seal of hush pipe can be ensured while facilitating hush pipe to dismantle, make the decrease of noise functions of hush pipe keep stable.
2, in the utility model, the length of the first extension part is set to the degree of depth being greater than the first circular groove, namely when the first extension part end contacts with the first annular groove bottom, can make to leave gap between annular slope A and annular slope B, can ensure that filling slot has one fixed width, to facilitate smearing and removing of metal binding agent.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the utility model embodiment, forms a application's part, does not form the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the structural representation of main body and an end cap specific embodiment in a kind of automobile exhaust pipe noise-reducing structure described in the utility model;
Fig. 2 is the partial enlarged drawing in the portion of A shown in Fig. 1;
Fig. 3 is the structural representation of a kind of automobile exhaust pipe noise-reducing structure described in the utility model specific embodiment.
Mark and corresponding component title in accompanying drawing: 1, main body, 2, noise reduction core body, 3, end cap, 4, filling slot, 5, the second circular groove, the 6, first extension part, the 7, first circular groove, 8, internal ring portion, 9, outer portion, the 10, second extension part, 11, screw thread B, 12, screw thread A.
Embodiment
Clearly understand for making the purpose of this utility model, technological scheme and advantage, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only for explaining the utility model, and conduct is not to restriction of the present utility model.
Embodiment 1
As shown in Figure 1 to Figure 3, a kind of automobile exhaust pipe noise-reducing structure, comprise the main body 1 that the open the other end in one end is closed and the end cap 3 that main body 1 open end can be closed, the noise reduction core body 2 that two ends run through main body 1 closed end and end cap 3 is respectively fixed with in main body 1, main body 1 open end end face has the first circular groove 7 of indent, the open end of main body 1 is divided into outer portion 9 and is positioned at the internal ring portion 8 of outer portion 9 by the first circular groove 7, end cap 3 end face evagination is formed with external diameter and is less than end cap 3 external diameter and the first extension part 6 can inserted in the first circular groove 7 and the second extension part 10 being positioned at the first extension part 6, the inner side of the first extension part 6 and the outside of the second extension part 10 form the second circular groove 5 internal ring portion 8 can inserted jointly, the outer wall circular of the first extension part 6 is provided with screw thread A12, the inwall of the first circular groove 7 is provided with the screw thread B11 that can match with screw thread A12, the outer wall of end cap 3 passes through annular slope A to the first extension part 6 transition, the end face of outer portion 9 is set to the annular slope B identical with annular slope A true dip direction, the filling slot 4 of annular slope A, annular slope B and the common looping of the first extension part 6, fills metal binding agent in filling slot 4.
During the present embodiment application, first noise reduction core body 2 is put into main body 1 inner, then respectively by internal ring portion 8 just to the second circular groove 5, first extension part 6 is just to after the first circular groove 7, rotating end cap 3, by the screw-thread fit between screw thread A12 and screw thread B11, respectively internal ring portion 8 is pushed in the second circular groove 5, first extension part 6 is pushed in the first circular groove 7, until the free end end face of internal ring portion 8 contacts with the bottom land of the second circular groove 5 or the free end end face of the first extension part 6 contacts with the bottom land of the first circular groove 7.Now, the outer wall of annular slope A, annular slope B and the first extension part 6 is then formed with the filling slot 4 of annular, metal binding agent is injected filling slot 4, thoroughly seals by noise reduction core body 2.And at needs cleaning noise reduction core body 2 be, directly the metal binding agent in the first circular groove 7 is removed, again end cap 3 is rotated backward, being separated between end cap 3 with main body 1 can be realized, noise reduction core body 2 is being reused after cleaning, while the noise reduction efficacy improving hush pipe, reduce the user cost of automobile silencing.Wherein, contacted by the screw-thread fit between the first extension part 6 with the first circular groove 7 and the face between internal ring portion 8 with the second circular groove 5, add the metal binding agent in filling slot 4, can while facilitating hush pipe quick-detachment, ensure the seal of hush pipe, make the decrease of noise functions of hush pipe keep stable.
Preferably, described metal binding agent is BD818 elastic adhesive.Select BD818 elastic adhesive, filling slot 4 is filled fast airtight, and can remove fast by the binder when noise reduction core body 2 needs to change in filling slot, make the topology layout of hush pipe more flexible.
Preferably, the length of described first extension part 6 is greater than the degree of depth of described first circular groove 7.The length of the first extension part 6 is set to the degree of depth being greater than the first circular groove 7, namely in the first extension part 6 end with when contacting bottom the first circular groove 7, can make to leave gap between annular slope A and annular slope B, can ensure that filling slot 4 has one fixed width, to facilitate smearing and removing of metal binding agent.
For strengthening the area of contact between the first extension part 6 and the first circular groove 7 and the area of contact between internal ring portion 8 and the second circular groove 5, preferably, the cross section of described first circular groove 7 and described second circular groove 5 is all rectangular.
Above content is the further description done the utility model in conjunction with concrete preferred implementation, can not assert that embodiment of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, not departing from other mode of executions drawn under the technical solution of the utility model, all should be included in protection domain of the present utility model.
Claims (4)
1. an automobile exhaust pipe noise-reducing structure, comprise the main body (1) that the open the other end in one end is closed and the end cap (3) that main body (1) open end can be closed, the noise reduction core body (2) that two ends run through main body (1) closed end and end cap (3) is respectively fixed with in main body (1), it is characterized in that: the first circular groove (7) main body (1) open end end face having indent, the open end of main body (1) is divided into outer portion (9) and is positioned at the internal ring portion (8) of outer portion (9) by the first circular groove (7), end cap (3) end face evagination is formed with external diameter and is less than end cap (3) external diameter and the first extension part (6) can inserted in the first circular groove (7) and the second extension part (10) being positioned at the first extension part (6), the inner side of the first extension part (6) and the outside of the second extension part (10) form the second circular groove (5) internal ring portion (8) can inserted jointly, the outer wall circular of the first extension part (6) is provided with screw thread A(12), the inwall of the first circular groove (7) be provided with can with screw thread A(12) the screw thread B(11 that matches), the outer wall of end cap (3) passes through annular slope A to the first extension part (6) transition, the end face of outer portion (9) is set to the annular slope B identical with annular slope A true dip direction, the filling slot (4) of annular slope A, annular slope B and the common looping of the first extension part (6), filling slot fills metal binding agent in (4).
2. a kind of automobile exhaust pipe noise-reducing structure according to claim 1, is characterized in that: described metal binding agent is BD818 elastic adhesive.
3. a kind of automobile exhaust pipe noise-reducing structure according to claim 1, is characterized in that: the length of described first extension part (6) is greater than the degree of depth of described first circular groove (7).
4. according to a kind of automobile exhaust pipe noise-reducing structure in claim 1 ~ 3 described in any one, it is characterized in that: the cross section of described first circular groove (7) and described second circular groove (5) is all rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520770108.9U CN205064066U (en) | 2015-09-30 | 2015-09-30 | Noise elimination structure of automobile exhaust pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520770108.9U CN205064066U (en) | 2015-09-30 | 2015-09-30 | Noise elimination structure of automobile exhaust pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205064066U true CN205064066U (en) | 2016-03-02 |
Family
ID=55390633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520770108.9U Expired - Fee Related CN205064066U (en) | 2015-09-30 | 2015-09-30 | Noise elimination structure of automobile exhaust pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205064066U (en) |
-
2015
- 2015-09-30 CN CN201520770108.9U patent/CN205064066U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160302 Termination date: 20160930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |