CN210484861U - PTFE bellows - Google Patents
PTFE bellows Download PDFInfo
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- CN210484861U CN210484861U CN201921334506.0U CN201921334506U CN210484861U CN 210484861 U CN210484861 U CN 210484861U CN 201921334506 U CN201921334506 U CN 201921334506U CN 210484861 U CN210484861 U CN 210484861U
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- corrugated pipe
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- bellows
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Abstract
The utility model relates to a PTFE corrugated pipe, which comprises a corrugated pipe, wherein both ends of the corrugated pipe are respectively provided with a conical joint, the opening part of each conical joint is respectively provided with a sealing ring, the convex outer part of the corrugated pipe is respectively provided with a convex ring, and the concave outer part of the corrugated pipe is respectively provided with a toughening layer; the utility model has the advantages of simple structure, strong toughness, strong wear resistance and strong corrosion resistance.
Description
Technical Field
The utility model relates to a bellows technical field, concretely relates to PTFE bellows.
Background
The corrugated pipe changes the characteristic that the prior pipeline can not be bent, can replace the pipelines with lower mechanical strength, such as graphite, ceramics, glass and the like, can be used as the feeding and discharging pipes of tank cars, storage tanks, containers and reaction kettles, can carry out the staggered connection of the pipelines or can be used for balancing the displacement and the size change of the pipelines caused by climate or other reasons or eliminating the vibration of high-frequency machinery; on an airplane, the corrugated pipe is good in anti-seismic effect and high in strength, so that the corrugated pipe is often used in an oil pipe of the airplane; however, the conventional corrugated pipe has poor corrosion resistance, sound insulation, insulation and fire resistance, and is easy to break after long-term use, thereby causing safety accidents; PTFE is commonly called as 'plastics king', is a high molecular compound formed by polymerizing tetrafluoroethylene, has excellent chemical stability, corrosion resistance, sealing property, high lubrication non-adhesiveness, electrical insulation property and good ageing resistance, and can be used as engineering plastics to be made into polytetrafluoroethylene tubes, rods, belts, plates, films and the like; the material is generally applied to corrosion-resistant pipelines, containers, pumps, valves with higher performance requirements, radar manufacturing equipment, high-frequency communication equipment, radio equipment and the like; accordingly, a need exists for a PTFE bellows.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art and providing a PTFE corrugated pipe with simple structure, strong toughness, strong wear resistance and strong corrosion resistance.
The purpose of the utility model is realized like this: the utility model provides a PTFE bellows, it includes the bellows, the both ends of bellows all be provided with the taper joint, the opening part of taper joint all be provided with the sealing washer, the bellied outside of bellows all be provided with the bulge loop, the sunken outside of bellows all be provided with toughening layer.
The corrugated pipe and the conical joint are made of PTFE.
The toughening layer is an aluminum oxide layer which is woven by at least 2 aluminum oxide wires in a warp and weft mode.
The convex ring and the corrugated pipe are connected into an integral structure.
The sealing ring is made of nitrile rubber.
The utility model has the advantages that: the corrugated pipe and the conical joint of the utility model are made of PTFE, which is commonly called as 'plastic king' and is a high molecular compound formed by polymerizing tetrafluoroethylene, and the corrugated pipe and the conical joint have excellent chemical stability, corrosion resistance, sealing property, high lubrication non-adhesiveness, electrical insulation property and good anti-aging endurance; therefore, the corrosion resistance of the oil pipe of the airplane can be met; the sealing ring is made of nitrile rubber, so that the nitrile rubber has excellent oil resistance, high wear resistance, high heat resistance and high bonding force; the sealing ring and the convex ring can effectively ensure components in the PTFE corrugated pipe, the toughened alumina layer can enhance the strength and the wear resistance of the crease of the corrugated pipe, and the reduction of the wear resistance and the reduction of the service life of the crease caused by low mechanical strength is avoided; in conclusion, the utility model has the advantages of simple structure, strong toughness, strong wear resistance and strong corrosion resistance.
Drawings
Fig. 1 is a front view of a PTFE bellows of the present invention.
Wherein: 1. bellows 2, conical joint 3, sealing washer 4, bulge loop 5, toughening layer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Example 1
As shown in fig. 1, a PTFE corrugated pipe comprises a corrugated pipe 1, wherein tapered joints 2 are arranged at two ends of the corrugated pipe 1, sealing rings 3 are arranged at openings of the tapered joints 2, convex rings 4 are arranged outside protrusions of the corrugated pipe 1, and toughening layers 5 are arranged outside recesses of the corrugated pipe 1.
The utility model has the advantages that: the corrugated pipe and the conical joint of the utility model are made of PTFE, which is commonly called as 'plastic king' and is a high molecular compound formed by polymerizing tetrafluoroethylene, and the corrugated pipe and the conical joint have excellent chemical stability, corrosion resistance, sealing property, high lubrication non-adhesiveness, electrical insulation property and good anti-aging endurance; therefore, the corrosion resistance of the oil pipe of the airplane can be met; the sealing ring and the convex ring can effectively ensure components in the PTFE corrugated pipe; in conclusion, the utility model has the advantages of simple structure, strong toughness, strong wear resistance and strong corrosion resistance.
Example 2
As shown in fig. 1, a PTFE corrugated pipe comprises a corrugated pipe 1, wherein two ends of the corrugated pipe 1 are respectively provided with a conical joint 2, an opening of each conical joint 2 is provided with a sealing ring 3, the outer part of a bulge of the corrugated pipe 1 is provided with a convex ring 4, and the outer part of a recess of the corrugated pipe 1 is provided with a toughening layer 5; the corrugated pipe 1 and the conical joint 2 are made of PTFE; the toughening layer 5 is an aluminum oxide layer which is woven by at least 2 aluminum oxide wires in a warp-weft manner; the convex ring 4 and the corrugated pipe 1 are connected into an integral structure; the sealing ring 3 is made of nitrile rubber.
The utility model has the advantages that: the corrugated pipe and the conical joint of the utility model are made of PTFE, which is commonly called as 'plastic king' and is a high molecular compound formed by polymerizing tetrafluoroethylene, and the corrugated pipe and the conical joint have excellent chemical stability, corrosion resistance, sealing property, high lubrication non-adhesiveness, electrical insulation property and good anti-aging endurance; therefore, the corrosion resistance of the oil pipe of the airplane can be met; the sealing ring is made of nitrile rubber, so that the nitrile rubber has excellent oil resistance, high wear resistance, high heat resistance and high bonding force; the sealing ring and the convex ring can effectively ensure components in the PTFE corrugated pipe, the toughened alumina layer can enhance the strength and the wear resistance of the crease of the corrugated pipe, and the reduction of the wear resistance and the reduction of the service life of the crease caused by low mechanical strength is avoided; in conclusion, the utility model has the advantages of simple structure, strong toughness, strong wear resistance and strong corrosion resistance.
Claims (5)
1. A PTFE bellows, it includes bellows, its characterized in that: the corrugated pipe is characterized in that conical joints are arranged at two ends of the corrugated pipe, sealing rings are arranged at openings of the conical joints, convex rings are arranged outside the bulges of the corrugated pipe, and toughening layers are arranged outside the depressions of the corrugated pipe.
2. A PTFE bellows according to claim 1, wherein: the corrugated pipe and the conical joint are made of PTFE.
3. A PTFE bellows according to claim 1, wherein: the toughening layer is an aluminum oxide layer which is woven by at least 2 aluminum oxide wires in a warp and weft mode.
4. A PTFE bellows according to claim 1, wherein: the convex ring and the corrugated pipe are connected into an integral structure.
5. A PTFE bellows according to claim 1, wherein: the sealing ring is made of nitrile rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921334506.0U CN210484861U (en) | 2019-08-16 | 2019-08-16 | PTFE bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921334506.0U CN210484861U (en) | 2019-08-16 | 2019-08-16 | PTFE bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210484861U true CN210484861U (en) | 2020-05-08 |
Family
ID=70536204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921334506.0U Active CN210484861U (en) | 2019-08-16 | 2019-08-16 | PTFE bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210484861U (en) |
-
2019
- 2019-08-16 CN CN201921334506.0U patent/CN210484861U/en active Active
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