CN210396867U - High-temperature sealing gasket and vehicle exhaust pipeline - Google Patents
High-temperature sealing gasket and vehicle exhaust pipeline Download PDFInfo
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- CN210396867U CN210396867U CN201921002605.9U CN201921002605U CN210396867U CN 210396867 U CN210396867 U CN 210396867U CN 201921002605 U CN201921002605 U CN 201921002605U CN 210396867 U CN210396867 U CN 210396867U
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Abstract
The utility model discloses a high temperature seal gasket and vehicle exhaust pipe. A high-temperature sealing gasket is arranged in the vehicle exhaust pipeline. The high-temperature sealing gasket is provided with an exhaust through hole, an inner convex rib of an annular structure and an outer convex rib of an annular structure are arranged on the periphery of the exhaust through hole, and a heat insulation groove hole is formed between the inner convex rib and the outer convex rib. Among this high temperature seal gasket, interior protruding muscle plays main sealing effect, and outer protruding muscle plays supplementary sealed effect, and thermal-insulated slotted hole can play fine thermal-insulated effect and buffering and the effect that blocks the air current, thereby the utility model discloses a high temperature seal gasket and vehicle exhaust pipe can have fine sealed effect and thermal-insulated effect to and longer life.
Description
Technical Field
The utility model relates to an automobile manufacturing technical field, in particular to high temperature seal gasket and a vehicle exhaust pipe.
Background
The problem of sealing high temperature exhaust lines has been a great problem, and leakage of gas from the exhaust line after a seal failure can sooth surrounding accessories, leading to strong complaints from users. When the air leakage is serious, the power torque of the engine is reduced, and the dynamic property of the whole machine is influenced.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a high-temperature sealing gasket in the prior art. In a high-temperature sealing gasket commonly used in the prior art, a circle of conventional convex rib 2 is arranged around the periphery of an exhaust through hole 1 through a stamping process.
Referring to fig. 2, fig. 2 is a partial cross-sectional view of a high-temperature sealing gasket in a use state in the prior art. The high-temperature sealing gasket is arranged between two flanges (a flange A and a flange B), and the conventional convex rib 2 can play a sealing role in preventing high-temperature gas in the exhaust through hole 1 from outwards jumping out through a gap between the two flanges.
The high-temperature sealing gasket in the prior art has the following defects:
1) because the existence of conventional protruding muscle 2, flange B and the contact side of conventional protruding muscle 2 have small clearance to exist, and high temperature waste gas can strike high temperature seal gasket and the conventional protruding muscle 2 on the high temperature seal gasket through small clearance always to lead to sealed inefficacy easily.
2) The temperature of the high-temperature gas is conducted to the high-temperature sealing gasket, so that the temperature of the conventional convex rib 2 is relatively high, and the conventional convex rib is easy to damage, so that the sealing failure is caused.
Therefore, how to make the high-temperature sealing gasket overcome the above disadvantages and improve the sealing effect is a technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a high temperature seal gasket and a vehicle exhaust pipe who is provided with this high temperature seal gasket can have fine sealed effect and thermal-insulated effect to and longer life.
In order to achieve the above object, the utility model provides a following technical scheme:
a high-temperature sealing gasket is characterized in that an exhaust through hole is formed in the high-temperature sealing gasket, an inner convex rib of an annular structure and an outer convex rib of the annular structure are arranged on the periphery of the exhaust through hole, and a heat insulation groove hole is formed between the inner convex rib and the outer convex rib.
Preferably, in the high-temperature sealing gasket, the inner rib and the outer rib are both circular rib structures.
Preferably, in the high-temperature sealing gasket, a plurality of the heat insulation slots are formed between the inner rib and the outer rib.
Preferably, in the high-temperature sealing gasket, a plurality of the heat insulation slots are identical in shape.
Preferably, in the high-temperature sealing gasket, each heat insulation slot hole is an arc-shaped hole, and a center of the arc-shaped hole coincides with a central axis of the exhaust through hole.
Preferably, in the high-temperature sealing gasket, four heat insulation slots are provided.
Preferably, in the high-temperature sealing gasket, the length of the connecting segment between adjacent heat insulation slotted holes (5) is not more than five millimeters.
Preferably, in the high-temperature sealing gasket, the convex cross-sectional shapes of the inner rib and the outer rib are arc-shaped.
Preferably, in the high-temperature sealing gasket, the inner rib and the outer rib are respectively a rib structure formed by a stamping process.
Preferably, in the high-temperature gasket, a plurality of engaging lugs are further provided on an outer peripheral side of the high-temperature gasket, and each of the engaging lugs is provided with a mounting hole.
A vehicle exhaust pipeline comprises a first pipe section and a second pipe section, wherein a first flange is arranged on the first pipe section, a second flange is arranged on the second pipe section, and a high-temperature sealing gasket is arranged between the first flange and the second flange.
In the working process, high-temperature gas not only flows in the exhaust through hole and the pipeline channel in the high-temperature sealing gasket, but also enters a small gap between the high-temperature sealing gasket and the pipeline connecting flange. At this time, the high-temperature sealing gasket is impacted by the high-temperature gas. The high-temperature sealing gasket provided by the utility model is provided with the inner convex rib, the outer convex rib and the heat insulation slot hole, so that the inner convex rib plays a main sealing role, and the outer convex rib plays an auxiliary sealing role; even if high-temperature gas enters a tiny gap between the high-temperature sealing gasket and the flange, the pressure of the high-temperature gas is greatly reduced after the high-temperature gas is blocked by the first sealing structure, namely the inner convex rib, so that the high-temperature gas is easily and completely sealed in a pipeline by the outer convex rib without leaking; moreover, high-temperature gas passes after the interior protruding muscle gets into the heat-insulating groove downthehole, and is stagnant in the heat-insulating groove downthehole to can play fine thermal-insulated effect, and the effect of buffering and blockking the air current, very big reduction reach the temperature and the gas impact pressure of outer protruding muscle department, thereby, outer protruding muscle can keep having stronger reliability, thereby, the utility model provides a high-temperature seal gasket can have fine sealed effect and thermal-insulated effect, and longer life.
The utility model provides an among the vehicle exhaust pipe, owing to be provided with above-mentioned high temperature seal gasket to can have fine sealed effect and thermal-insulated effect, and longer life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a high-temperature sealing gasket in the prior art;
FIG. 2 is a partial cross-sectional view of a prior art high temperature sealing gasket in use;
fig. 3 is a schematic structural diagram of a high-temperature sealing gasket according to a first embodiment of the present invention;
fig. 4 is a partial cross-sectional view of a high-temperature sealing gasket according to a first embodiment of the present invention in a use state.
Wherein:
1-conventional convex ribs, 2-mounting holes and 3-exhaust through holes;
4-external convex rib, 5-heat insulation slotted hole and 6-internal convex rib.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
First embodiment
Referring to fig. 3 and fig. 4, fig. 3 is a schematic structural diagram of a high-temperature sealing gasket according to a first embodiment of the present invention, and fig. 4 is a partial cross-sectional view of the high-temperature sealing gasket according to the first embodiment of the present invention in a use state.
The utility model discloses a first concrete embodiment provides a high temperature seal gasket. The high-temperature sealing gasket is provided with an exhaust through hole 1, an inner convex rib 6 with an annular structure and an outer convex rib 4 with an annular structure are arranged on the periphery of the exhaust through hole 1, and a heat insulation groove hole 5 is arranged between the inner convex rib 6 and the outer convex rib 4. Wherein, the heat insulation slotted hole 5 is a through hole structure arranged between the inner convex rib 6 and the outer convex rib 4.
The utility model discloses the high temperature seal gasket that first embodiment provided can be used to the pipeline junction who is used for carrying high temperature gas. Wherein, the exhaust through hole 1 in the high-temperature sealing gasket corresponds to a gas channel in the pipeline. For example, through flange joint between two pipelines of looks connection in the vehicle exhaust pipe, be provided with between two flange the utility model discloses the high temperature seal gasket that first embodiment provided. But not be limited to this, the utility model discloses the high temperature seal gasket that first embodiment provided still can be applied to the pipeline junction who is used for carrying high temperature gas in other fields, the utility model discloses do not specifically limit to high temperature seal gasket's application.
In the working process, high-temperature gas not only flows in the exhaust through hole 1 and the pipeline channel in the high-temperature sealing gasket, but also enters a small gap between the high-temperature sealing gasket and the pipeline connecting flange. At this time, the high-temperature sealing gasket is impacted by the high-temperature gas. In the high-temperature sealing gasket provided by the first embodiment of the utility model, the inner convex rib 6, the outer convex rib 4 and the heat insulation slot 5 are arranged, so that the inner convex rib 6 plays a main sealing role, and the outer convex rib 4 plays an auxiliary sealing role; even if high-temperature gas enters a small gap between the high-temperature sealing gasket and the flange, the pressure of the high-temperature gas is greatly reduced after the high-temperature gas is blocked by the first sealing structure of the inner convex rib 6, so that the high-temperature gas is easily and completely sealed in a pipeline by the outer convex rib 4 without leakage; moreover, high-temperature gas passes after in the interior muscle 6 gets into thermal-insulated slotted hole 5, is stagnant in thermal-insulated slotted hole 5 to can play fine thermal-insulated effect, and the buffering with block the effect of air current, very big reduction reach the temperature and the gas impact pressure of outer protruding muscle 4 departments, thereby, outer protruding muscle 4 can keep having stronger reliability, thereby, the utility model discloses the high-temperature seal gasket that the first embodiment provided can have fine sealed effect and thermal-insulated effect, and longer life.
Specifically, the cross sections of the exhaust through holes 1, the inner convex ribs 6 and the outer convex ribs 4 are all circular, that is, the inner convex ribs 6 and the outer convex ribs 4 are all circular convex rib structures.
Specifically, a plurality of (preferably four) heat insulation slot holes 5 are arranged between the inner convex rib 6 and the outer convex rib 4, and the shapes of the heat insulation slot holes 5 are the same, so that unified processing is facilitated.
Specifically, each heat insulation slot hole 5 is an arc-shaped hole, and the center of the arc-shaped hole coincides with the central axis of the exhaust through hole 1.
In particular, the length of the connecting segment between adjacent insulation slots 5 does not exceed five millimeters. On the premise of ensuring the connection strength between the inner convex rib 6 and the outer convex rib 4, the open area of the heat insulation slotted hole 5 is made as large as possible.
Specifically, the inner bead 6 and the outer bead 4 are arc-shaped bead structures formed by a stamping process, respectively. Namely, the convex cross sections of the inner convex ribs 6 and the outer convex ribs 4 are arc-shaped.
Specifically, the periphery of the high-temperature sealing gasket is further provided with a plurality of connecting lugs, and each connecting lug is provided with a mounting hole 3 for passing through a connecting bolt at a pipeline connecting position.
Second embodiment
The utility model discloses high temperature seal gasket that provides in the second embodiment with the utility model discloses high temperature seal gasket's that provides in the first embodiment difference only lies in:
the utility model discloses in the high temperature seal gasket that provides in the second embodiment, interior protruding muscle 6 and outer protruding muscle 4 can set up to the annular protruding muscle structure of ellipse, rectangle or other shapes.
In the high-temperature sealing gasket provided in the second embodiment of the present invention, the number of the heat-insulating slots 5 is two, three, five or more.
Third embodiment
The utility model discloses the third embodiment provides an exhaust pipe, this vehicle exhaust pipe includes first pipeline section and second pipeline section, is provided with first flange on the first pipeline section, is provided with the second flange on the second pipeline section, is provided with between first flange and the second flange to have like the utility model discloses the high temperature seal gasket that provides in first embodiment or the second embodiment. Because be provided with above-mentioned high temperature seal gasket in this vehicle exhaust pipe to can have fine sealed effect and thermal-insulated effect, and longer life.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A high-temperature sealing gasket is provided with an exhaust through hole (1) and is characterized in that an inner convex rib (6) of an annular structure and an outer convex rib (4) of an annular structure are arranged on the periphery of the exhaust through hole (1), and a heat insulation groove hole (5) is formed between the inner convex rib (6) and the outer convex rib (4).
2. A high-temperature sealing gasket according to claim 1, wherein the inner rib (6) and the outer rib (4) are both circular rib structures.
3. High-temperature gasket seal according to claim 2, characterised in that between said inner rib (6) and said outer rib (4) there are provided a plurality of said insulating slots (5).
4. High-temperature gasket seal according to claim 3, characterised in that said insulating slots (5) are of identical shape.
5. The high-temperature sealing gasket according to claim 4, wherein each of the heat-insulating slot holes (5) is an arc-shaped hole, and the center of the arc-shaped hole coincides with the central axis of the exhaust through hole (1).
6. High-temperature gasket seal according to claim 5, characterised in that said insulating slots (5) are provided with four.
7. High-temperature gasket seal according to claim 3, characterised in that the length of the connecting segment between adjacent insulating slots (5) does not exceed five millimetres.
8. High-temperature sealing gasket according to claim 1, wherein the convex cross-sectional shapes of the inner bead (6) and the outer bead (4) are arc-shaped.
9. High-temperature sealing gasket according to any one of claims 1 to 8, wherein a plurality of engaging lugs are further provided on the outer peripheral side of the high-temperature sealing gasket, and each of the engaging lugs is provided with a mounting hole (3).
10. A vehicle exhaust line comprising a first pipe section and a second pipe section, wherein a first flange is disposed on the first pipe section, a second flange is disposed on the second pipe section, and a high temperature sealing gasket according to any one of claims 1 to 9 is disposed between the first flange and the second flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921002605.9U CN210396867U (en) | 2019-06-28 | 2019-06-28 | High-temperature sealing gasket and vehicle exhaust pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921002605.9U CN210396867U (en) | 2019-06-28 | 2019-06-28 | High-temperature sealing gasket and vehicle exhaust pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210396867U true CN210396867U (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921002605.9U Active CN210396867U (en) | 2019-06-28 | 2019-06-28 | High-temperature sealing gasket and vehicle exhaust pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210396867U (en) |
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2019
- 2019-06-28 CN CN201921002605.9U patent/CN210396867U/en active Active
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