CN220319663U

CN220319663U - Exhaust pipeline connection sealing structure

Info

Publication number: CN220319663U
Application number: CN202322140495.5U
Authority: CN
Inventors: 吴涛; 王普东; 季春雷; 沈瑜明; 简迎新
Original assignee: Shanghai New Power Automotive Technology Co ltd
Current assignee: Shanghai New Power Automotive Technology Co ltd
Priority date: 2023-08-09
Filing date: 2023-08-09
Publication date: 2024-01-09
Anticipated expiration: 2033-08-09

Abstract

The utility model relates to an exhaust pipeline connecting and sealing structure, which relates to the field of exhaust pipelines and comprises a first exhaust flange and a second exhaust flange, wherein the first exhaust flange and the second exhaust flange are respectively provided with a ring groove and a boss which can be in clearance fit, and a ring is additionally arranged in the ring groove and can be extruded by the boss to generate elastic deformation. The utility model has the characteristics of good sealing effect, repeated use and the like.

Description

Exhaust pipeline connection sealing structure

Technical Field

The utility model relates to the field of exhaust pipelines, in particular to a connecting and sealing structure of an exhaust pipeline.

Background

The engine exhaust pipeline has high temperature resistant, characteristics such as the gas tightness requires highly, and the general V type flange joint that adopts of present exhaust pipeline connection, V type flange can exist to warp in machining or welding process, leads to the contact surface laminating not tight, so generally two V type flange middle mounting gaskets, cushion thickness direction warp and guarantee junction gas tightness requirement, but the gasket thickness is thin, it is very little to compensate flange deflection, when V type flange warp seriously, use gasket seal or have the gas leakage risk, and the gasket is disposable part, can not used repeatedly, has increased exhaust pipeline cost of maintenance.

Disclosure of Invention

The purpose of the utility model is that: the exhaust pipeline connecting and sealing structure has the characteristics of good sealing effect, repeated use for many times and the like.

In order to achieve the above purpose, the technical scheme of the utility model provides an exhaust pipeline connecting and sealing structure, which comprises a first exhaust flange and a second exhaust flange, wherein the first exhaust flange and the second exhaust flange are respectively provided with a ring groove and a boss which can be in clearance fit, a ring is additionally arranged in the ring groove, and the ring can be extruded by the boss to generate elastic deformation.

Preferably, the boss height is less than the groove depth.

Preferably, the cross section of the ring is C-shaped.

Preferably, the ring opening is oriented into the groove of the ring groove.

Preferably, the ring has a width smaller than that of the ring groove.

Preferably, the distance from the ring tip to the second exhaust flange end face is less than the boss height of the first exhaust flange.

Preferably, the ring is a metal ring.

Preferably, the periphery of the joint of the first exhaust flange and the second exhaust flange is provided with a V-shaped clamp.

In summary, the utility model has the following beneficial technical effects:

the utility model can achieve better sealing effect, simultaneously allows repeated use and reduces the maintenance cost of the exhaust pipeline.

Drawings

FIG. 1 is an exploded view of an exhaust line connection seal according to the present utility model;

FIG. 2 is a schematic cross-sectional view of an exhaust line connection seal of the present utility model;

FIG. 3 is an enlarged partial schematic view in section of an exhaust pipe connection seal structure according to the present utility model.

Reference numerals: 1. a first exhaust flange; 2. a metal C-ring; 3. a second exhaust flange; 4. v-shaped clamp.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment of the utility model discloses a connecting and sealing structure of an exhaust pipeline, wherein a ring of annular groove is machined on one flange end face, a ring of boss is machined on the other flange end face, the annular groove is in clearance fit with the boss, the height of the boss is smaller than the depth of the annular groove, a metal C-shaped ring 2 is arranged in the annular groove, the opening direction of the metal C-shaped ring 2 faces towards the groove, the width of the metal C-shaped ring 2 is smaller than the width of the annular groove, another flange with the boss is assembled, the boss is sleeved in the annular groove, the two flanges are connected and fastened by a V-shaped clamp 4, the boss compresses the C-shaped ring in the fastening process, and the C-shaped ring is deformed and tightly attached to the annular groove so as to achieve the sealing effect.

The metal C-shaped ring 2 is of an axial C shape, the metal C-shaped ring 2 can realize large elastic deformation, a better sealing effect is achieved, and after the V-shaped clamp 4 is loosened, the C-shaped ring can be restored to the original state, so that the metal C-shaped ring can be used for multiple times. The exhaust pipeline connection sealing structure solves the problems that the sealing effect of the traditional gasket is insufficient and the gasket cannot be reused, and meanwhile, compared with the gasket sealing structure, the cost is lower.

The specific exhaust pipeline connecting and sealing structure is as shown in fig. 1 to 3, a circle of boss is machined on the first exhaust flange 1, a circle of annular groove is machined on the second exhaust flange 3, the annular groove and the boss are in clearance fit, the height of the boss is smaller than the depth of the annular groove, a metal C-shaped ring 2 is arranged in the annular groove, the opening direction faces towards the inside of the groove, the width of the metal C-shaped ring 2 is smaller than the width of the annular groove, the first exhaust flange 1 is assembled, the boss of the first exhaust flange 1 is sleeved into the annular groove of the second exhaust flange 3, the two flanges are connected and fastened by a V-shaped clamp 4, and the boss of the first exhaust flange 1 compresses the metal C-shaped ring 2, and the C-shaped ring deforms and the annular groove is tightly attached to achieve the sealing effect in the fastening process. The boss height of the first exhaust flange 1 is smaller than the depth of the annular groove and is larger than the distance from the top end of the metal C-shaped ring 2 to the end face of the second exhaust flange 3.

Finally, it should be noted that: the foregoing description of the preferred embodiments of the present utility model is not intended to be limiting, but rather, although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides an exhaust pipeline connection seal structure, its characterized in that includes first exhaust flange (1) and second exhaust flange (3), first exhaust flange (1) with second exhaust flange (3) are equipped with clearance fit's annular and boss respectively, be equipped with the ring in the annular in addition, the ring can by the boss extrusion is in order to take place elastic deformation.

2. The exhaust pipe connection sealing structure according to claim 1, wherein the boss height is smaller than the groove depth.

3. An exhaust pipe connection sealing structure according to claim 2, wherein the ring has a C-shaped cross section.

4. A vent line connection seal as set forth in claim 3 wherein said ring opening is oriented in a groove of said ring groove.

5. The exhaust pipe connection sealing structure according to claim 4, wherein the ring has a width smaller than that of the ring groove.

6. An exhaust pipe connection sealing structure according to claim 5, characterized in that the distance from the ring tip to the end face of the second exhaust flange (3) is smaller than the boss height of the first exhaust flange (1).

7. The exhaust pipe connection sealing structure according to claim 6, wherein the ring is a metal ring.

8. A vent line connection sealing structure according to any one of claims 1-7, wherein the outer periphery of the junction of the first vent flange (1) and the second vent flange (3) is provided with a V-clip (4).