CN203547868U - Connecting structure of vent pipe and silencer - Google Patents
Connecting structure of vent pipe and silencer Download PDFInfo
- Publication number
- CN203547868U CN203547868U CN201320683589.0U CN201320683589U CN203547868U CN 203547868 U CN203547868 U CN 203547868U CN 201320683589 U CN201320683589 U CN 201320683589U CN 203547868 U CN203547868 U CN 203547868U
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- China
- Prior art keywords
- silencing apparatus
- silencer
- end cap
- outlet pipe
- joining
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Abstract
The utility model discloses a connecting structure of a vent pipe and a silencer. The connecting structure of the vent pipe and the silencer comprises the vent pipe, the silencer and a graphite connecting sleeve. One end of the graphite connecting sleeve is a plane, and the other end of the graphite connecting sleeve is a spherical face. A silencer connecting disk and a silencer end cover on the vent pipe are connected through a connecting bolt and enable the graphite connecting sleeve to be clamped between the silencer connecting disk and the silencer end cover. The tail end of a branch vent pipe penetrates out from the silencer connecting disk and is arranged in a through hole of the graphite connecting sleeve in a sleeved mode, and the tail end of the vent pipe is placed in the graphite connecting sleeve. The silencer connecting disk or the silencer end cover is provided with a spherical groove corresponding to the spherical end of the graphite connecting sleeve. The connecting bolt on the outer side of the silencer connecting disk or the silencer end cover is sleeved with a damping spring, and the damping spring abuts against the outer side face of the silencer connecting disk or the silencer end cover. The connecting structure of the vent pipe and the silencer solves the problem that the connecting portion of the silencer and the vent pipe is broken, so that gas leakage happens, and has the advantages of being simple in structure, easy to manufacture, convenient to maintain, wide in applicable range, low in production cost and the like.
Description
Technical field
The utility model relates to the improvement of petrol engine venting gas appliance, specifically, refers to a kind of petrol engine outlet pipe and muffler coupling structure, belongs to technology of gasoline engine field.
Background technique
Silencing apparatus is the tapping equipment of petrol engine, and Main Function is to discharge petrol engine harmful exhaust, reduces noise.Between silencing apparatus and motor, adopt outlet pipe to be connected, silencing apparatus is fixed in car load frame, because the vibration frequency of the rhythm of engine and car load frame is inconsistent, cause outlet pipe and silencing apparatus to occur the amplitude of different sizes, the joint of outlet pipe and silencing apparatus is just prone to fracture like this, cause exhaust gas leakage, noise strengthens, contaminated air.At present, on market the linkage structure of common petrol engine outlet pipe and silencing apparatus for several below:
1, outlet pipe is connected with silencing apparatus by welding procedure, and its structure is shown in Fig. 1.Applicable outlet pipe is shorter, and the operating mode that engine luggine is less is used.If outlet pipe is longer, when motor and car load frame vibration frequency phase-difference are when larger, outlet pipe weld easily ruptures, and causes silencing apparatus to damage, exhaust gas leakage.
2, outlet pipe is connected with silencing apparatus by bolt, and its structure is shown in Fig. 2.Centre is lined with gasket seal, prevents waste gas discharge.What shortcoming was that outlet pipe and silencing apparatus adopt is that straight line plane is connected.When motor and car load frame vibration frequency phase-difference are when larger, connecting bolt there will be loosening or fracture, and gasket seal there will be damage, causes exhaust gas leakage.
3, outlet pipe adopts welding or bolt to be connected with silencing apparatus, and its structure is shown in Fig. 3, and outlet pipe forms by two sections.On two sections of outlet pipes, be welded with respectively the journal stirrup of pendulum spring, adopt spring to connect.Other one end of two outlet pipes is sending and receiving motivation and silencing apparatus respectively.In the middle of two sections of outlet pipe joints, adopt graphite cannula sealing, spring is in extended state.Spring can play the effect of damping, and graphite cannula prevents exhaust gas leakage.The shortcoming of this structure is that two sections of outlet pipes are that straight line connects, and silencing apparatus, in vibrations, there will be crookedly, drives the outlet pipe being fixedly connected with silencing apparatus to synchronize crooked.And this structure, after long-time use, can cause graphite cannula distortion, thereby occurs the hidden danger of exhaust gas leakage.
4, outlet pipe forms by two sections, is welded with respectively outlet pipe land on two outlet pipes, between two outlet pipes, graphite cannula is housed, and its structure is shown in Fig. 4.Graphite cannula one end is plane, and one end is sphere, and centre is through hole.Graphite cannula planar ends is connected with an outlet pipe land, and intermediate throughholes is through outlet pipe, and sphere end is connected with another outlet pipe land.There is spherical groove the outlet pipe land middle being connected with sphere end, and the both sides of groove are welded with respectively two attaching nuts.Wherein one section of outlet pipe adopts welding or bolt to be connected with silencing apparatus.The shortcoming of this structure is: 1, the Placement of outlet pipe and silencing apparatus and Fig. 1,2 the same, when motor and car load frame vibration frequency phase-difference are when larger, can not eliminate gas leakage hidden danger.2, outlet pipe adopts segmented, manual assembly technique, and the position installation dimension conformity of silencing apparatus integral body is relatively poor, cannot guarantee that silencing apparatus is in place on car load.3, outlet pipe adopts after segmented, owing to being subject to the limit value of muffler volume, two outlet pipe internal diameters are basically identical, in the time of two outlet pipe generation bendings, graphite cannula can shelter from the pipe inner area of a part of outlet pipe being connected with silencing apparatus, outlet pipe internal diameter reduces, and exhaust airstream resistance strengthens, and affects power.
Summary of the invention
For prior art above shortcomings, the purpose of this utility model is to provide a kind of can effectively improve silencing apparatus and outlet pipe join strength, and petrol engine outlet pipe and the muffler coupling structure that can not cause waste gas to reveal.
To achieve these goals, the technical solution adopted in the utility model is such:
A kind of outlet pipe and muffler coupling structure, comprise outlet pipe, silencing apparatus and joining of graphite cover, described outlet pipe consists of exhaust branch pipe, the silencing apparatus land that is positioned at the motor land of exhaust branch pipe head end and is positioned at exhaust branch pipe end, described silencing apparatus comprises muffler body and is positioned at silencing apparatus end cap and the silencing apparatus tail-hood at muffler body two ends, silencing apparatus end cap center is provided with exhaust vent, in muffler body, be provided with silencing apparatus inner tube, silencing apparatus inner tube is fixed on silencing apparatus end cap and over against exhaust vent; It is characterized in that: described joining of graphite cover one end is plane, and one end is sphere, and centre is through hole; Described silencing apparatus land and silencing apparatus end cap connect by connecting bolt and joining of graphite cover are clamped between silencing apparatus land and silencing apparatus end cap, and joining of graphite cover through hole is over against the exhaust vent at silencing apparatus end cap center; Exhaust branch pipe end passes and is enclosed within joining of graphite cover through hole from silencing apparatus land, and outlet pipe end is positioned at joining of graphite cover; On silencing apparatus land or silencing apparatus end cap, be provided with the spherical groove corresponding with joining of graphite cover sphere end; On the connecting bolt in silencing apparatus land or silencing apparatus end cap outside, be arranged with damping stage clip, this damping stage clip is against silencing apparatus land or silencing apparatus end cap outer side surface.
Described joining of graphite cover sphere end is towards silencing apparatus end cap, and silencing apparatus end cap is provided with the spherical groove corresponding with joining of graphite cover sphere end; On silencing apparatus end cap, be installed with attaching nut with the opposing another side of spherical groove.
On silencing apparatus land for the bolt through-hole diameter by connecting bolt be connecting bolt diameter 1.3-1.5 doubly.
The exhaust vent diameter at silencing apparatus end cap center is 1.2-1.3 times of exhaust branch pipe inner diameter.
Compared to existing technology, the utlity model has following beneficial effect:
1, the sphere end of joining of graphite cover is because friction can produce gap, and the elastic force that damping stage clip produces makes the joining of graphite cover between silencing apparatus land and silencing apparatus end cap compacted all the time, eliminates gap, prevents gas leakage.
2, when vibration, silencing apparatus utilizes the smooth sphere end of joining of graphite cover, is free to arbitrarily angled swing, can not cause damage to the linkage structure of outlet pipe and silencing apparatus, so that produce exhaust gas leakage.
3, due to bolt through-hole diameter be connecting bolt diameter 1.3-1.5 doubly, between connecting bolt and bolt through-hole, there is gap, this gap also can guarantee that silencing apparatus has enough pendulum angles.
4, due to the exhaust vent diameter on silencing apparatus end cap be exhaust branch pipe inner diameter 1.2-1.3 doubly, even if swinging appears in silencing apparatus, graphite cannula can barrier air yet, can not affect engine power.
In a word, the utility model is not in the situation that changing muffler for motor boundary dimension, basic structure and performance, by changing the linkage structure of outlet pipe and silencing apparatus, solved the phenomenon of silencing apparatus and the fracture gas leakage of outlet pipe joint, have simple in structurely, make easily convenient for maintaining, the features such as Applicable scope is wide, and cost of production is low.
Accompanying drawing explanation
Fig. 1-prior art the first outlet pipe and muffler coupling structure.
Fig. 2-prior art the second outlet pipe and muffler coupling structure.
The third outlet pipe of Fig. 3-prior art and muffler coupling structure.
Fig. 4-prior art the 4th kind of outlet pipe and muffler coupling structure.
Fig. 5-the utility model outlet pipe and muffler coupling structure.
Fig. 6-Fig. 5 partial enlarged drawing.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to Fig. 5 and Fig. 6, from scheming, can find out, the utility model outlet pipe and muffler coupling structure, comprise outlet pipe, silencing apparatus and joining of graphite cover 9, described outlet pipe consists of exhaust branch pipe 1, the silencing apparatus land 3 that is positioned at the motor land 2 of exhaust branch pipe head end and is positioned at exhaust branch pipe end.Described silencing apparatus comprises muffler body 4 and is positioned at silencing apparatus end cap 5 and the silencing apparatus tail-hood 6 at muffler body two ends, silencing apparatus end cap 5 centers are provided with exhaust vent 7, in muffler body 4, be provided with silencing apparatus inner tube 8, silencing apparatus inner tube 8 is weldingly fixed on silencing apparatus end cap 5 and over against exhaust vent 7.It is plane that the utility model joining of graphite overlaps 9 one end, and one end is sphere, and centre is through hole.Described silencing apparatus land 3 and silencing apparatus end cap 5 connect by connecting bolt 10 and joining of graphite cover 9 are clamped between silencing apparatus land 3 and silencing apparatus end cap 5, and joining of graphite cover through hole is over against the exhaust vent at silencing apparatus end cap center; Exhaust branch pipe 1 end passes and is enclosed within joining of graphite and overlaps in 9 through holes from silencing apparatus land 3, and outlet pipe end is positioned at joining of graphite cover, does not pass.On silencing apparatus land or silencing apparatus end cap, be provided with the spherical groove corresponding with joining of graphite cover sphere end; On the connecting bolt 10 in silencing apparatus land or silencing apparatus end cap outside, be arranged with damping stage clip 11, this damping stage clip 11 is against silencing apparatus land or silencing apparatus end cap outer side surface.The sphere end of joining of graphite cover, because friction can constantly shorten, can not produce gap if do not add processing, and the elastic force that damping stage clip produces makes the joining of graphite cover between silencing apparatus land and silencing apparatus end cap compacted all the time, eliminates gap, prevents gas leakage.
When vibration, silencing apparatus utilizes the smooth sphere end of joining of graphite cover, is free to arbitrarily angled swing, can not cause damage to the linkage structure of outlet pipe and silencing apparatus, so that produce exhaust gas leakage.
Described joining of graphite cover sphere end is towards silencing apparatus end cap, and silencing apparatus end cap is provided with the spherical groove corresponding with joining of graphite cover sphere end; On silencing apparatus end cap 5, be installed with attaching nut 12 with the opposing another side of spherical groove.The joint of outlet pipe and silencing apparatus is the place of easy-rupturing, and at easy-rupturing, place strengthens, can be from the basic defect that solves fracture gas leakage.While convenient for maintaining.
On silencing apparatus land for the bolt through-hole diameter by connecting bolt be connecting bolt diameter 1.3-1.5 doubly.Between connecting bolt and bolt through-hole, just have so enough gaps, this gap also can guarantee that silencing apparatus has enough pendulum angles.
The exhaust vent diameter at silencing apparatus end cap center is 1.2-1.3 times of exhaust branch pipe inner diameter.Even if silencing apparatus occur to swing, graphite cannula can barrier air yet, can not affect engine power.
In a word, the utility model is not in the situation that changing muffler for motor boundary dimension, basic structure and performance, by changing the linkage structure of outlet pipe and silencing apparatus, solved the phenomenon of silencing apparatus and the fracture gas leakage of outlet pipe joint, have simple in structurely, make easily convenient for maintaining, the features such as Applicable scope is wide, and cost of production is low.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, 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 departing 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 (4)
1. an outlet pipe and muffler coupling structure, comprise outlet pipe, silencing apparatus and joining of graphite cover, described outlet pipe is by exhaust branch pipe (1), the silencing apparatus land (3) that is positioned at the motor land (2) of exhaust branch pipe head end and is positioned at exhaust branch pipe end forms, described silencing apparatus comprises muffler body (4) and is positioned at silencing apparatus end cap (5) and the silencing apparatus tail-hood (6) at muffler body two ends, silencing apparatus end cap (5) center is provided with exhaust vent (7), in muffler body (4), be provided with silencing apparatus inner tube (8), silencing apparatus inner tube (8) is fixed on silencing apparatus end cap (5) and over against exhaust vent, it is characterized in that: described joining of graphite cover (9) one end is plane, and one end is sphere, centre is through hole, described silencing apparatus land (3) and silencing apparatus end cap (5) are connected and joining of graphite cover are clamped between silencing apparatus land and silencing apparatus end cap by connecting bolt (10), and joining of graphite cover through hole is over against the exhaust vent at silencing apparatus end cap center, exhaust branch pipe (1) end passes and is enclosed within joining of graphite cover (9) through hole from silencing apparatus land (3), and outlet pipe end is positioned at joining of graphite cover, on silencing apparatus land or silencing apparatus end cap, be provided with the spherical groove corresponding with joining of graphite cover sphere end, on the connecting bolt in silencing apparatus land or silencing apparatus end cap outside, be arranged with damping stage clip (11), this damping stage clip is against silencing apparatus land or silencing apparatus end cap outer side surface.
2. outlet pipe according to claim 1 and muffler coupling structure, is characterized in that: described joining of graphite cover (9) sphere end is towards silencing apparatus end cap (5), and silencing apparatus end cap is provided with the spherical groove corresponding with joining of graphite cover sphere end; Another side upper at silencing apparatus end cap (5) and that spherical groove is opposing is installed with attaching nut (12).
3. outlet pipe according to claim 2 and muffler coupling structure, is characterized in that: on silencing apparatus land for the bolt through-hole diameter by connecting bolt be connecting bolt diameter 1.3-1.5 doubly.
4. according to outlet pipe and muffler coupling structure described in claim 1 or 2 or 3, it is characterized in that: the exhaust vent diameter at silencing apparatus end cap center is 1.2-1.3 times of exhaust branch pipe inner diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320683589.0U CN203547868U (en) | 2013-11-01 | 2013-11-01 | Connecting structure of vent pipe and silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320683589.0U CN203547868U (en) | 2013-11-01 | 2013-11-01 | Connecting structure of vent pipe and silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203547868U true CN203547868U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320683589.0U Expired - Fee Related CN203547868U (en) | 2013-11-01 | 2013-11-01 | Connecting structure of vent pipe and silencer |
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| Country | Link |
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| CN (1) | CN203547868U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106473745A (en) * | 2016-09-20 | 2017-03-08 | 青岛大学附属医院 | Measuring system for harelip mouth |
-
2013
- 2013-11-01 CN CN201320683589.0U patent/CN203547868U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106473745A (en) * | 2016-09-20 | 2017-03-08 | 青岛大学附属医院 | Measuring system for harelip mouth |
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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: 20140416 Termination date: 20141101 |
|
| EXPY | Termination of patent right or utility model |