CN210396869U - Three-layer end cone - Google Patents
Three-layer end cone Download PDFInfo
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- CN210396869U CN210396869U CN201921169895.6U CN201921169895U CN210396869U CN 210396869 U CN210396869 U CN 210396869U CN 201921169895 U CN201921169895 U CN 201921169895U CN 210396869 U CN210396869 U CN 210396869U
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- cone
- opening
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- close
- layer end
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Abstract
The utility model provides a three-layer end cone, its includes interior awl, outer cone and centre gripping interior awl with thermal-insulated cotton between the outer cone, three-layer end cone is equipped with first opening and second opening, wherein interior awl is equipped with and is close to the first end of first opening part and being close to the second tip of second opening part, outer cone is equipped with and is close to the third end of first opening part and being close to the fourth tip of second opening part, the first end with third end pressfitting is in the same place, the second tip with be equipped with the space between the fourth end. By the arrangement, a larger assembly gap can be formed between the inner cone and the outer cone, and the convenience of assembling the inner cone and the outer cone is improved; in addition, the second end part and the fourth end part are not pressed, so that one working procedure is saved, and the manufacturing difficulty is reduced.
Description
Technical Field
The utility model relates to a three-layer end awl belongs to engine exhaust aftertreatment technical field.
Background
With the continuous upgrading of emission regulations, the single-layer end cone and the double-layer end cone in the prior art cannot meet the requirements of new emission regulations. As an improvement, three layers of end cones are usually adopted, namely an inner layer end cone, an outer layer end cone and heat insulation cotton clamped in the middle are included, so that the functions of heat insulation, heat preservation and noise reduction are effectively realized. However, the assembly process of the three-layer end cone is complex and difficult to control.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an easily make three-layer end awl.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a three-layer end cone, its includes interior awl, outer cone and centre gripping and is in interior awl with thermal-insulated cotton between the outer cone, three-layer end cone is equipped with first opening and second opening, wherein interior awl is equipped with and is close to the first end of first opening part and is close to the second tip of second opening part, outer cone is equipped with and is close to the third end of first opening part and is close to the fourth tip of second opening part, wherein the first end with third end pressfitting is in the same place, the second tip with be equipped with the space between the fourth end.
As a further improved technical scheme of the utility model, the second end be equipped with to the portion of bending that the fourth end extends, the portion of bending is located in the space.
As a further improved technical solution of the present invention, the bending portion and the fourth end portion are separated from each other.
As a further improved technical solution of the present invention, the first opening is smaller than the second opening.
As a further improved technical solution of the present invention, the third end is higher than the first end.
As a further improved technical solution of the present invention, the fourth end portion extends beyond the second end portion.
As a further improved technical solution of the present invention, the bending portion is used for preventing the heat insulation cotton from overflowing from the gap
As a further improved technical scheme of the utility model, the portion of bending be used for the location with the aftertreatment casing of three-layer end awl equipment.
Compared with the prior art, the first end part and the third end part of the utility model are pressed together, and a gap is arranged between the second end part and the fourth end part; by the arrangement, a larger assembly gap can be formed between the inner cone and the outer cone, and the convenience of assembling the inner cone and the outer cone is improved; in addition, the second end part and the fourth end part are not pressed, so that one working procedure is saved, and the manufacturing difficulty is reduced.
Drawings
Fig. 1 is a top view of the three-layered end cone of the present invention.
Fig. 2 is a schematic sectional view taken along line a-a in fig. 1.
FIG. 3 is a schematic view of the three-layer end cone of FIG. 2 mated with an aftertreatment housing.
Detailed Description
Referring to fig. 1 to 3, the present invention discloses a three-layered end cone, which comprises an inner cone 1, an outer cone 2, and a heat insulation cotton 3 clamped between the inner cone 1 and the outer cone 2. The three-layer end cone is provided with a first opening 10 and a second opening 20, wherein the inner cone 1 is provided with a first end portion 11 close to the first opening 10 and a second end portion 12 close to the second opening 20, the outer cone 2 is provided with a third end portion 21 close to the first opening 10 and a fourth end portion 22 close to the second opening 20, wherein the first end portion 11 and the third end portion 21 are pressed together, and a gap 4 is arranged between the second end portion 12 and the fourth end portion 22.
In the illustrated embodiment of the present invention, the first opening 10 is smaller than the second opening 20.
In the illustrated embodiment of the present invention, the second end portion 12 is provided with a bent portion 121 extending to the fourth end portion 22, and the bent portion 121 is located in the gap 4. The bent portion 121 and the fourth end portion 22 are separated from each other. The bending part 121 is used for preventing the heat insulation cotton 3 from overflowing from the gap 4. In addition, as shown in fig. 3, the bending portion 121 is used to position the post-processing housing 5 assembled with the three-layer end cone.
In the illustrated embodiment of the present invention, the third end portion 21 is higher than the first end portion 11, so as to facilitate the assembly when it is connected to a flange (not shown). The fourth end 22 extends beyond the second end 12 to facilitate connection to the aftertreatment housing 5.
Compared with the prior art, the first end portion 11 and the third end portion 21 of the present invention are pressed together, and the gap 4 is provided between the second end portion 12 and the fourth end portion 22; due to the arrangement, a larger assembly gap can be formed between the inner cone 1 and the outer cone 2, and the convenience of assembling the inner cone 1 and the outer cone 2 is improved; in addition, the second end portion 12 and the fourth end portion 22 are not pressed, so that a working procedure is saved, and the manufacturing difficulty is reduced.
The above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present specification should be based on the technical personnel in the technical field, and although the present specification has described the present invention in detail with reference to the above embodiments, the skilled personnel in the art should understand that the technical personnel in the technical field can still modify or substitute the present invention, and all the technical solutions and modifications thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a three-layer end cone, its includes interior awl, outer cone and centre gripping and is in interior awl with thermal-insulated cotton between the outer cone, three-layer end cone is equipped with first opening and second opening, wherein interior awl is equipped with and is close to the first end of first opening part and is close to the second end of second opening part, outer cone is equipped with and is close to the third end of first opening part and is close to the fourth end of second opening part, its characterized in that, first end with third end pressfitting is in the same place, the second end with be equipped with the space between the fourth end.
2. The three-layer end cone of claim 1, wherein: the second end portion is provided with a bending portion extending towards the fourth end portion, and the bending portion is located in the gap.
3. The three-layer end cone of claim 2, wherein: the bent part and the fourth end part are mutually separated.
4. The three-layer end cone of claim 1, wherein: the first opening is smaller than the second opening.
5. The three-layer end cone of claim 1, wherein: the third end is higher than the first end.
6. The three-layer end cone of claim 1, wherein: the fourth end portion extends beyond the second end portion.
7. The three-layer end cone of claim 2, wherein: the bent part is used for preventing the heat insulation cotton from overflowing from the gap.
8. The three-layer end cone of claim 2, wherein: the bending part is used for positioning the post-processing shell assembled with the three layers of end cones.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921169895.6U CN210396869U (en) | 2019-07-23 | 2019-07-23 | Three-layer end cone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921169895.6U CN210396869U (en) | 2019-07-23 | 2019-07-23 | Three-layer end cone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210396869U true CN210396869U (en) | 2020-04-24 |
Family
ID=70356158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921169895.6U Active CN210396869U (en) | 2019-07-23 | 2019-07-23 | Three-layer end cone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210396869U (en) |
-
2019
- 2019-07-23 CN CN201921169895.6U patent/CN210396869U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |