CN203322568U - Sealing mechanism for exhaust pipe of automobile engine - Google Patents
Sealing mechanism for exhaust pipe of automobile engine Download PDFInfo
- Publication number
- CN203322568U CN203322568U CN2013203640246U CN201320364024U CN203322568U CN 203322568 U CN203322568 U CN 203322568U CN 2013203640246 U CN2013203640246 U CN 2013203640246U CN 201320364024 U CN201320364024 U CN 201320364024U CN 203322568 U CN203322568 U CN 203322568U
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- exhaust pipe
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- shaped section
- automobile engine
- sealing mechanism
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Abstract
The utility model relates to a sealing mechanism for an exhaust pipe of an automobile engine. The sealing mechanism on the exhaust pipe of the automobile engine is good in sealing performance, low in cost and convenient to install. The sealing mechanism for the exhaust pipe of the automobile engine comprises a first exhaust pipe and a second exhaust pipe, and is characterized by further comprising two clamp hoops with n-shaped sections; a gas outlet end of the first exhaust pipe are bent twice, so that an n-shaped section is formed; a gas inlet end of the second exhaust pipe are bent for three times, so that a Pi-shaped section is formed; a free end of the Pi-shaped section is abutted against an inner wall of the n-shaped section; a free end of the n-shaped section is abutted against an outer wall of the Pi-shaped section; each clamp hoop clamps bending ends of the two exhaust pipes; and the two clamp hoops are connected together through a bolt. Preferably, an angle Alpha is formed between a front end surface of the free end of the Pi-shaped section and a vertical plane; an angle Gamma is formed between a lower end surface of the free end of the n-shaped section and a horizontal plane; and the first exhaust pipe, the second exhaust pipe and the clamp hoops are all punch forming pieces.
Description
Technical field
The utility model relates to a kind of sealing mechanism, particularly the sealing mechanism on a kind of automobile engine exhaust pipe.
Background technique
Development along with automotive industry, automobile quantity is more and more, motor vehicle exhaust emission is also more and more serious to the pollution of environment, for protection of the environment, reducing motor vehicle exhaust emission pollutes, country variant has been formulated different emission standards, in order to meet the Europe IV, the requirement of Europe V and more maximum discharge rules, the tail gas that need to discharge motor car engine is processed, this has good reliability and sealing with regard to the outlet pipe that requires connecting engine and processor, do not allowed undressed tail gas to be discharged in atmosphere, simultaneously to adopting selective catalytic reduction SCR(Selective Catalytic Reduction) after-treatment system of technology path, need to be to spraying urea in motor exhaust, in order to guarantee the reaction temperature demand, avoid urea crystals, sealing requirements to outlet pipe is higher, present most of outlet pipe connection first adopts sealing gasket to be sealed, with clip, be fixed again, perhaps adopting flange to carry out bolt is connected and fixed, this sealing structure pad is easily aging, fault leaks air, need to adopt sealing gasket simultaneously, cost is high, assembling inconvenience.
The model utility content
For deficiency of the prior art, the utility model aims to provide the sealing mechanism on a kind of good seal performance, cost automobile engine exhaust pipe low, easy for installation.
In order to address the above problem, this kind of automobile engine exhaust pipe sealing mechanism, comprise downtake pipe and second exhaust pipe, it is characterized in that: also comprise that two cross sections are the clip of N-shaped; The outlet side of this downtake pipe is bent to form the N-shaped cross section for twice, the inlet end of this second exhaust pipe is bent to form π type cross section through three times, the free end in this π type cross section and the inwall butt in N-shaped cross section, the outer wall butt in the free end in N-shaped cross section and π type cross section, each clip fixes the bent end of two outlet pipes, and two clips are bolted together.
Preferably, the free-ended front-end face in described π type cross section and vertical plane are an angle [alpha]; Free-ended lower end surface, described N-shaped cross section is horizontal by an angle γ.Described downtake pipe, second exhaust pipe and clip are the impact briquetting part.
The beneficial effects of the utility model are: this motor downtake pipe and second exhaust pipe are fixed by clip, the end part seal of outlet pipe and outlet pipe is three grades of seal form, the first order, the second level is the sealing of line face, the third level is the sealing of face face, sealing is reliable, air tight, can save the sealing gasket part simultaneously, reduce costs, easy to assembly, the first order wherein, second level sealing utilizes the conical surface of downtake pipe and the conical surface wedge angle of second exhaust pipe end face to carry out the sealing of line face, third level sealing utilizes the conical surface of downtake pipe and second exhaust pipe and the conical surface of clip to carry out the sealing of face face, the end of two outlet pipes is designed with angle, contact is reliable, seal tight.
The accompanying drawing explanation
The sectional structure schematic diagram that Fig. 1 is automobile engine exhaust pipe sealing mechanism of the present utility model;
The local structure for amplifying schematic diagram that Fig. 2 is the A section in Fig. 1;
The overall structure schematic diagram that Fig. 3 is automobile engine exhaust pipe sealing mechanism of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
In conjunction with Fig. 1 to Fig. 3, this kind of automobile engine exhaust pipe sealing mechanism, comprise that the identical and cross section of downtake pipe 1 and second exhaust pipe 2 and two shapes roughly is the clip 3 of N-shaped.The direction of arrow in Fig. 1 is airflow direction, corresponding with this direction, the outlet side of downtake pipe is bent to form the cross section that roughly is N-shaped for twice, the inlet end of this second exhaust pipe is bent to form through three times the cross section that roughly is the π type, the free end 21 in this π type cross section extend in the N-shaped cross section and with the inwall butt in N-shaped cross section, the free end 11 in N-shaped cross section and a side outer wall butt in π type cross section, each clip 3 fixes the bent end of two outlet pipes respectively, the flanged surface of latter two clip be bolted together.
Concrete, as shown in Figure 2, this device has three grades of sealing configurations, and the wedge angle potted line B1 of the conical surface A1 that the first order is downtake pipe 1 and the conical surface A2 of second exhaust pipe 2 carries out the sealing of line face; The wedge angle potted line B2 of the conical surface A4 that the second level is second exhaust pipe 2 and the conical surface A3 of downtake pipe 1 carries out the sealing of line face; The third level is sealed into the conical surface A8 of downtake pipe 1 and the conical surface A6 of second exhaust pipe 2 and conical surface A7, the A5 of clip 3 and carries out respectively the sealing of face face.The impacting force F1 of jointing clip 3, F2 are delivered to the first order and second level sealing from third level sealing, realize that whole outlet pipe is multi-stage sealed.In addition, in order to guarantee the reliability of line face sealing, use for a long time air tightly, at front-end face and the vertical plane of π type cross section free end 21, be an angle [alpha], in the lower end surface of N-shaped cross section free end 11 horizontal by an angle γ.Outlet pipe 1, outlet pipe 22, clip 3 are disposable impact briquetting constitutional detail.
Claims (3)
1. an automobile engine exhaust pipe sealing mechanism, comprise downtake pipe (1) and second exhaust pipe (2), it is characterized in that: also comprise that two cross sections are the clip of N-shaped (3);
The outlet side of this downtake pipe is bent to form the N-shaped cross section for twice, the inlet end of this second exhaust pipe is bent to form π type cross section through three times, the free end (21) in this π type cross section and the inwall butt in N-shaped cross section, the outer wall butt in the free end in N-shaped cross section (11) and π type cross section, each clip (3) fixes the bent end of two outlet pipes, and two clips are bolted together.
2. automobile engine exhaust pipe sealing mechanism according to claim 1, it is characterized in that: the front-end face of described π type cross section free end (21) and vertical plane are an angle [alpha]; The lower end surface of described N-shaped cross section free end (11) is horizontal by an angle γ.
3. automobile engine exhaust pipe sealing mechanism according to claim 1, it is characterized in that: described downtake pipe (1), second exhaust pipe (2) and clip (3) are the impact briquetting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203640246U CN203322568U (en) | 2013-06-24 | 2013-06-24 | Sealing mechanism for exhaust pipe of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203640246U CN203322568U (en) | 2013-06-24 | 2013-06-24 | Sealing mechanism for exhaust pipe of automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203322568U true CN203322568U (en) | 2013-12-04 |
Family
ID=49661919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203640246U Expired - Lifetime CN203322568U (en) | 2013-06-24 | 2013-06-24 | Sealing mechanism for exhaust pipe of automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203322568U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387281A (en) * | 2015-11-10 | 2016-03-09 | 上海建工一建集团有限公司 | Pipe fitting connecting structure and installation method thereof |
| CN110382939A (en) * | 2017-01-30 | 2019-10-25 | 爱迪实业产品有限公司 | It is vented fixture and method |
-
2013
- 2013-06-24 CN CN2013203640246U patent/CN203322568U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387281A (en) * | 2015-11-10 | 2016-03-09 | 上海建工一建集团有限公司 | Pipe fitting connecting structure and installation method thereof |
| CN110382939A (en) * | 2017-01-30 | 2019-10-25 | 爱迪实业产品有限公司 | It is vented fixture and method |
| US11454156B2 (en) | 2017-01-30 | 2022-09-27 | Ideal Clamp Products, Inc. | Exhaust clamp and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
|
| CX01 | Expiry of patent term |