CN203131012U - Inflatable high precision welded bellows - Google Patents
Inflatable high precision welded bellows Download PDFInfo
- Publication number
- CN203131012U CN203131012U CN 201320076394 CN201320076394U CN203131012U CN 203131012 U CN203131012 U CN 203131012U CN 201320076394 CN201320076394 CN 201320076394 CN 201320076394 U CN201320076394 U CN 201320076394U CN 203131012 U CN203131012 U CN 203131012U
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- China
- Prior art keywords
- flange
- corrugated pipe
- thin
- film sheet
- thick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000000694 effects Effects 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000010409 thin film Substances 0.000 abstract 4
- 238000000034 method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
An inflatable high-precision welded corrugated pipe belongs to the technical field of the design and manufacture of welded corrugated pipes. One end of the body is provided with a thick flange, the other end of the body is provided with a thin flange, an outer corrugated pipe is arranged between the two flanges, an inner corrugated pipe is arranged in the outer corrugated pipe, and an inflation cavity is arranged between the inner corrugated pipe and the outer corrugated pipe. The thick flange and the thin flange are both internally provided with air inflation cavities. The outer end face of the thin flange is provided with an outer thin film sheet, and the inner end face of the thin flange is provided with an inner thin film sheet. The utility model is used for installing and connecting the thin flange and the matched equipment. When the corrugated pipe sealing device works, gas is filled into the inflation cavity between the two flanges through the inflation nozzle on the thick flange, certain pressure is formed in the inflation cavity between the inner corrugated pipe and the outer corrugated pipe, the corrugated pipe is stretched, the outer thin film sheet and the inner thin film sheet at the end part of the thin flange are forced to generate micro deformation and are in close contact with a connecting device, and the sealing effect is achieved. Therefore, a good sealing effect can be achieved without adding any rubber ring or rubber cushion and the like, and the problems of the existing product are solved.
Description
Technical field
The utility model belongs to design and the manufacturing technology field of welded bellows.
Background technique
Welded bellows is widely used in vacuum equipment, nuclear industrial facility, Aero-Space equipment and synchronous radiation accelerator etc. as very crucial parts at present.Existing general welded bellows generally is made of coupling flange, bellows body and spacer ring.But find to exist problems under some environmental conditions, using.The one, its sealability can not guarantee, when mounted need and corollary equipment between install " O " shape O-ring seal additional or seal rubber pad waits to guarantee sealing effect.But under long-play or particular surroundings, use, make that O-ring seal is aging, distortion, rotten and cause the leakage of medium, performance index such as degree of vacuum and vacuum leak rate are descended, influence the normal operation of equipment.
Summary of the invention
At above-mentioned situation, the purpose of this utility model provides a kind of good sealing effect, the welded bellows of long service life.Solve the problem that existing product exists.
The utility model is to address the above problem the technological scheme of taking to be; End at body has thick flange, has thin flange at the other end of body, has outward corrugated tube between two flanges, has inner corrugated pipe in outward corrugated tube, has an inflatable chamber between interior outward corrugated tube.Top at thick flange has charging air inlet, and the inside of thick flange and thin flange all has inflatable chamber.Have suction port at thick flange, have inlet hole at thin flange.Charging air inlet is connected with each inflatable chamber.Between the inlet hole of the suction port of thick flange and thin flange, have and be connected flexible pipe.Have the outer film sheet in the exterior edge face of thin flange, have interior film sheet at the interior edge face of thin flange.Use of the present utility model is to install by thin flange and corollary equipment to connect.Fill in the inflatable chamber between two flanges by the charging air inlet on the thick method basket earlier during work and add gas, form certain pressure in the inflatable chamber between inside and outside bellows, bellows is stretched, force outer film sheet and the interior film sheet of thin flange end to produce micro-deformation, closely contact with interface unit, reach the effect of sealing.Therefore must not install any cushion rubber or rubber cushion etc. additional can reach good sealing effect, has solved the problem that existing product exists.It is simple in structure, and is reasonable in design.The experiment proved that effect is very good.
Description of drawings
Accompanying drawing is the utility model sectional structure chart
Film sheet 3-thin flange, 4-inlet hole 5-inner corrugated pipe 6-outward corrugated tube 7-suction port 8-charging air inlet 9 thick flange 10-connect flexible pipe in the 1-outer film sheet 2-
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing; End at body has thick flange 9, has thin flange 3 at the other end of body, has outward corrugated tube 6 between two flanges, has inner corrugated pipe 5 in outward corrugated tube, has an inflatable chamber between interior outward corrugated tube.Have charging air inlet 8 on the top of thick flange, the inside of thick flange and thin flange all has inflatable chamber.Have suction port 7 at thick flange,, have inlet hole 4 on the thin flange, what link to each other with each suction port has a flexible pipe of connection 10.Have outer film sheet 1 in the exterior edge face of thin flange, film sheet 2 in the interior edge face of thin flange has.The external diameter of the utility model flange is 430mm, and internal diameter is 390mm, and length is 500mm.
Claims (1)
1. the high-accuracy welded bellows of gas type, it is characterized in that: the end at body has thick flange (9), the other end at body has thin flange (3), between two flanges, have outward corrugated tube (6), in outward corrugated tube, have inner corrugated pipe (5), between interior outward corrugated tube, have an inflatable chamber, have charging air inlet (8) on the top of thick flange, the inside of thick flange and thin flange all has inflatable chamber, have suction port (7) at thick flange, have inlet hole (4) on the thin flange, what link to each other with each suction port has a flexible pipe of connection (10), have outer film sheet (1) in the exterior edge face of thin flange, have interior film sheet (2) at the interior edge face of thin flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320076394 CN203131012U (en) | 2013-01-31 | 2013-01-31 | Inflatable high precision welded bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320076394 CN203131012U (en) | 2013-01-31 | 2013-01-31 | Inflatable high precision welded bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203131012U true CN203131012U (en) | 2013-08-14 |
Family
ID=48938992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320076394 Expired - Fee Related CN203131012U (en) | 2013-01-31 | 2013-01-31 | Inflatable high precision welded bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203131012U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728538A (en) * | 2015-03-03 | 2015-06-24 | 东莞中子科学中心 | Inflation type corrugated pipe |
| CN104728537A (en) * | 2015-03-03 | 2015-06-24 | 东莞中子科学中心 | Inflation type corrugated pipe device |
| CN104728543A (en) * | 2015-03-03 | 2015-06-24 | 东莞中子科学中心 | membrane flange |
| CN113271708A (en) * | 2021-05-14 | 2021-08-17 | 中国科学院近代物理研究所 | Pipeline connecting device in strong radiation area of accelerator |
| CN121397855A (en) * | 2025-12-24 | 2026-01-23 | 中国科学院近代物理研究所 | Inflatable vacuum flange device for radioactive target area |
-
2013
- 2013-01-31 CN CN 201320076394 patent/CN203131012U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728538A (en) * | 2015-03-03 | 2015-06-24 | 东莞中子科学中心 | Inflation type corrugated pipe |
| CN104728537A (en) * | 2015-03-03 | 2015-06-24 | 东莞中子科学中心 | Inflation type corrugated pipe device |
| CN104728543A (en) * | 2015-03-03 | 2015-06-24 | 东莞中子科学中心 | membrane flange |
| CN113271708A (en) * | 2021-05-14 | 2021-08-17 | 中国科学院近代物理研究所 | Pipeline connecting device in strong radiation area of accelerator |
| CN113271708B (en) * | 2021-05-14 | 2023-11-28 | 中国科学院近代物理研究所 | A pipe connection device for the strong radiation area of an accelerator |
| CN121397855A (en) * | 2025-12-24 | 2026-01-23 | 中国科学院近代物理研究所 | Inflatable vacuum flange device for radioactive target area |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170123 Address after: 523808 Guangdong province Dongguan City Songshan Lake Science and Technology Industrial Park Academy of Science Park building productivity Patentee after: DONGGUAN NEUTRON SCIENCE CENTER Address before: 115000 Yingkou, Jinniu Road, east of the city of Liaoning (SME Park) (No. 139) Patentee before: Yingkou Xitai Precision Welding Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20190131 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |