CN216157752U - Flexible joint capable of twisting and resisting high temperature - Google Patents
Flexible joint capable of twisting and resisting high temperature Download PDFInfo
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- CN216157752U CN216157752U CN202120932187.4U CN202120932187U CN216157752U CN 216157752 U CN216157752 U CN 216157752U CN 202120932187 U CN202120932187 U CN 202120932187U CN 216157752 U CN216157752 U CN 216157752U
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- liner tube
- lining pipe
- inner liner
- pipe
- flexible joint
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Abstract
The utility model discloses a flexible joint capable of resisting high temperature by twisting, which is a double-layer metal liner tube, wherein the double-layer metal liner tube consists of an inner liner tube and an outer liner tube, the outer liner tube is sleeved outside the inner liner tube, the inner liner tube and the outer liner tube are formed by winding a thin-wall high-temperature-resistant stainless steel metal steel tape, sealing strip assembly cavities distributed spirally are formed in the outer liner tube, and graphite sealing strips are distributed in the sealing strip assembly cavities of the inner liner tube in a spirally winding manner. Through the design of the lining pipe in the bilayer, the lining pipe in the inlayer plays thermal-insulated high temperature resistant effect, twines the graphite sealing strip in outer inside lining pipe simultaneously, has the effect of the lining pipe in sealed skin, and the lining pipe can have flexible displacement and bear certain degree torsional force simultaneously at the in-process that uses, keeps the flexibility, prolongs the life of flexible festival of exhaust.
Description
Technical Field
The utility model relates to the technical field of flexible joints of automobile exhaust gas exhaust systems, in particular to a flexible joint capable of being twisted and resisting high temperature, and particularly relates to a mechanical connection structure of the flexible joint.
Background
The flexible joint is used as a key part of an automobile exhaust system, can isolate the displacement of an automobile engine to the exhaust system, and can absorb the vibration of the engine to reduce the noise performance of the automobile exhaust system. However, the bellows in the exhaust system of the exhaust gas at present has elasticity, can generate transverse or longitudinal stretching displacement under the action of pressure, axial force, transverse force or bending moment, but cannot have twisting force and cannot twist, and the poor flexibility easily causes the short service life of the flexible joint.
Disclosure of Invention
The utility model aims to provide a flexible joint capable of twisting and resisting high temperature. The noise of an exhaust system can be reduced, the flexibility of the flexible joint can be continuously kept in a high-temperature environment, the exhaust pipeline is prevented from being twisted and broken, and therefore the service life of the flexible joint is prolonged. Overcomes the defects in the prior art.
In order to achieve the purpose, the technical scheme of the utility model is as follows: a flexible joint capable of being twisted and resisting high temperature comprises a double-layer metal liner pipe, wherein the double-layer metal liner pipe is composed of an inner liner pipe and an outer liner pipe, the outer liner pipe is sleeved outside the inner liner pipe, the inner liner pipe and the outer liner pipe are formed by winding thin-wall high-temperature-resistant stainless steel metal steel tape, a sealing strip assembly cavity distributed in a spiral manner is formed in the outer liner pipe, and graphite sealing strips are distributed in the sealing strip assembly cavity of the inner liner pipe in a spiral manner; and the first buckling-pressing type end ring and the second buckling-pressing type end ring are respectively arranged at two ends of the double-layer metal liner pipe and are used for welding and fixing the inner liner pipe and the outer liner pipe into a whole through the first elbow flange and the second elbow flange.
The utility model discloses a flexible joint capable of twisting and resisting high temperature, which has novel and simple structure and reasonable design compared with the prior art, the inner lining pipe has the functions of heat insulation and high temperature resistance through the design of a double-layer lining pipe, and simultaneously, a graphite sealing strip is wound in the outer lining pipe to have the function of sealing the outer lining pipe, the lining pipe can have telescopic displacement and bear certain torsional force in the using process, the flexibility is kept, and the service life of the flexible joint for exhausting is prolonged.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a schematic cross-sectional view of the present invention.
Fig. 3 is a partially enlarged view of fig. 2.
Fig. 4 is a perspective view of the present invention.
Detailed Description
The utility model will be further described with reference to the accompanying drawings.
The utility model discloses a flexible joint capable of twisting and resisting high temperature, which is different from the prior art in that: the double-layer metal liner tube is composed of an inner liner tube 4 and an outer liner tube 5, the outer liner tube 5 is sleeved outside the inner liner tube 4, the inner liner tube 4 and the outer liner tube 5 are formed by winding thin-wall high-temperature-resistant stainless steel metal steel tape, and have the function of twisting and high temperature resistance, sealing strip assembly cavities distributed spirally are formed in the outer liner tube 5, and graphite sealing strips 1 are spirally wound and distributed in the sealing strip assembly cavities of the inner liner tube 4, so that a high-temperature-resistant heat insulation barrier is formed between the metal inner liner tube 4 and the outer liner tube 5, the rigidity of a flexible joint pipeline is prevented from being increased and the flexible joint pipeline is prevented from being broken, and meanwhile, the service life of the flexible joint is prolonged by the twistable and high-temperature-resistant performance of the inner liner tube; and a first buckling end ring 6 and a second buckling end ring 7 are respectively arranged at two ends of the double-layer metal liner pipe, and the first buckling end ring 6 and the second buckling end ring 7 are used for welding and fixing the inner liner pipe 4 and the outer liner pipe 5 into a whole through the first elbow flange 2 and the second elbow flange 3.
In particular implementation, a gap layer is formed between the inner lining pipe 4 and the outer lining pipe 5.
The foregoing is a more detailed description of the present invention in connection with specific preferred embodiments thereof, and it is not intended that the utility model be limited to the specific details set forth herein. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.
Claims (2)
1. A torsionally high temperature resistant flexible joint, characterized by: the double-layer metal liner tube is composed of an inner liner tube (4) and an outer liner tube (5), the outer liner tube (5) is sleeved outside the inner liner tube (4), the inner liner tube (4) and the outer liner tube (5) are formed by winding thin-wall high-temperature-resistant stainless steel metal steel tape, sealing strip assembly cavities distributed spirally are formed in the outer liner tube (5), and graphite sealing strips (1) are distributed in the sealing strip assembly cavities of the inner liner tube (4) in a spirally winding manner;
the double-layer metal liner pipe is characterized in that a first buckling type end ring (6) and a second buckling type end ring (7) are respectively arranged at two ends of the double-layer metal liner pipe, and the inner liner pipe (4) and the outer liner pipe (5) are fixed into a whole through a first elbow flange (2) and a second elbow flange (3) in a welding mode through the first buckling type end ring (6) and the second buckling type end ring (7).
2. A torsionally refractory flexible joint, according to claim 1, wherein: and a gap layer is formed between the inner lining pipe (4) and the outer lining pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120932187.4U CN216157752U (en) | 2021-04-30 | 2021-04-30 | Flexible joint capable of twisting and resisting high temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120932187.4U CN216157752U (en) | 2021-04-30 | 2021-04-30 | Flexible joint capable of twisting and resisting high temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216157752U true CN216157752U (en) | 2022-04-01 |
Family
ID=80834917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120932187.4U Active CN216157752U (en) | 2021-04-30 | 2021-04-30 | Flexible joint capable of twisting and resisting high temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216157752U (en) |
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2021
- 2021-04-30 CN CN202120932187.4U patent/CN216157752U/en active Active
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