CN204805456U - Two -way regulation sealing membrane modules - Google Patents
Two -way regulation sealing membrane modules Download PDFInfo
- Publication number
- CN204805456U CN204805456U CN201520346762.7U CN201520346762U CN204805456U CN 204805456 U CN204805456 U CN 204805456U CN 201520346762 U CN201520346762 U CN 201520346762U CN 204805456 U CN204805456 U CN 204805456U
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- China
- Prior art keywords
- annular
- membrane
- extending structure
- annular fold
- fold
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- Expired - Fee Related
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Abstract
The utility model discloses a two -way regulation sealing membrane modules, including base film and the flexible membrane of setting on the base film, the base film is flaky annular membrane, flexible membrane includes an extending structure and the 2nd extending structure, an extending structure includes the first annular fold that connects with annular symphysis, first annular fold tip is equipped with annular connection piece, the 2nd extending structure includes the second annular fold of being connected with annular connection piece and the basement membrane of setting at second annular fold tip, the 2nd extending structure sets up inside an extending structure. Through set up on the membrane module flexible membrane can so that between basement membrane and the annular membrane volume variable for the inside atmospheric pressure of buffering changes, guarantees sealed effect.
Description
Technical field
The utility model relates to bidirectional modulation sealing membrane modules.
Background technique
As everyone knows, existing engineering pipe, pipe fitting in particular for iron skill is steel pipe, in the maintenance process in later stage, need that regular to carry out japanning to body antirust, body is hollow tubular, after first japanning, in maintenance process, inwall japanning is carried out very not easily to already installed body, but only to coated outside, inwall is easy to get rusty under comparatively moist or corrosion-prone environment, from internal damage, body end is arranged sealing film and inboard wall of tube body isolation can be played corrosion-resistant effect, but the gas in body can expand or shrink due to the change of external temperature, the sealing film of body end can damage by gas pressure, it is made to lose the function of sealing.Prior art is badly in need of a kind of bidirectional modulation sealing membrane modules that can stretch.
Summary of the invention
The purpose of this utility model is to overcome the defect existed in prior art, provides a kind of bidirectional modulation sealing membrane modules that can stretch.
For achieving the above object, the technical solution of the utility model there is provided a kind of bidirectional modulation sealing membrane modules, and comprise basement membrane and be arranged on epilamellar Flexible film, described basement membrane is the circular membrane of sheet; Described Flexible film comprises the first shrinking structure and the second shrinking structure, and described first shrinking structure comprises the first annular fold be connected with circular membrane, and described first annular corrugations ends is provided with annular connecting sheet; Described second shrinking structure comprises the second annular fold be connected with annular connecting sheet and the counterdie being arranged on the second annular corrugations ends, and it is inner that described second shrinking structure is arranged on the first shrinking structure.Variable volume between counterdie and circular membrane can being made by arranging Flexible film on membrane module, for cushioning air pressure inside change, ensureing sealing effect.
As preferably, described first annular fold and the second annular fold are alternately formed by connecting by outer rim in annular connecting sheet.Such design can reach the effect of folding retractable.
As preferably, described first annular fold is provided with the junction surface be tightly connected with circular membrane near the end of circular membrane.Such design can ensure be tightly connected intensity and sealing effect.
Advantage of the present utility model and beneficial effect are: can make variable volume between counterdie and circular membrane by arranging Flexible film on membrane module, for cushioning air pressure inside change, ensure sealing effect.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1, basement membrane; 2, counterdie; 3, the first annular fold; 4, the second annular fold; 5, junction surface; 6, connecting sheet; 7, annular connecting sheet.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
As shown in Figure 1, a kind of bidirectional modulation sealing membrane modules, the Flexible film comprising basement membrane 1 and be arranged on basement membrane 1, described basement membrane 1 is the circular membrane of sheet; Described Flexible film comprises the first shrinking structure and the second shrinking structure, and described first shrinking structure comprises the first annular fold 3 be connected with circular membrane, and described first annular fold 3 end is provided with annular connecting sheet 7; Described second shrinking structure comprises the second annular fold 4 be connected with annular connecting sheet 7 and the counterdie 2 being arranged on the second annular fold 4 end, and it is inner that described second shrinking structure is arranged on the first shrinking structure.
Described first annular fold 3 and the second annular fold 4 are alternately formed by connecting by outer rim in annular connecting sheet 7.
Described first annular fold 3 is provided with the junction surface 5 be tightly connected with circular membrane near the end of circular membrane.
In use, basement membrane 1 and body end part seal are arranged, under the promotion when the air pressure in body rises at air, the first annular fold 3 is opened, and the second annular fold 4 shrinks, and body inner volume increases, and air pressure reduces, and reaches balance with the external world; Under promotion when the air pressure in body declines at air, first annular fold 3 shrinks, second annular fold 4 is opened, body inner volume is less, air pressure increases, reach balance with the external world, because the second annular fold 4 is arranged on the inside of the first annular fold 3, more compression volume can be obtained by the contraction of the second annular fold 4 when body internal air pressure declines.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing from the front lower of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. a bidirectional modulation sealing membrane modules, is characterized in that: comprise basement membrane and be arranged on epilamellar Flexible film, described basement membrane is the circular membrane of sheet; Described Flexible film comprises the first shrinking structure and the second shrinking structure, and described first shrinking structure comprises the first annular fold be connected with circular membrane, and described first annular corrugations ends is provided with annular connecting sheet; Described second shrinking structure comprises the second annular fold be connected with annular connecting sheet and the counterdie being arranged on the second annular corrugations ends, and it is inner that described second shrinking structure is arranged on the first shrinking structure.
2. bidirectional modulation sealing membrane modules as claimed in claim 1, is characterized in that: described first annular fold and the second annular fold are alternately formed by connecting by outer rim in annular connecting sheet.
3. bidirectional modulation sealing membrane modules as claimed in claim 2, is characterized in that: described first annular fold is provided with the junction surface be tightly connected with circular membrane near the end of circular membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520346762.7U CN204805456U (en) | 2015-05-27 | 2015-05-27 | Two -way regulation sealing membrane modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520346762.7U CN204805456U (en) | 2015-05-27 | 2015-05-27 | Two -way regulation sealing membrane modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204805456U true CN204805456U (en) | 2015-11-25 |
Family
ID=54590287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520346762.7U Expired - Fee Related CN204805456U (en) | 2015-05-27 | 2015-05-27 | Two -way regulation sealing membrane modules |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204805456U (en) |
-
2015
- 2015-05-27 CN CN201520346762.7U patent/CN204805456U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20160527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |