CN104455466A - Special-shaped sealing ring based on inflation and deflation and sealing method based on same - Google Patents
Special-shaped sealing ring based on inflation and deflation and sealing method based on same Download PDFInfo
- Publication number
- CN104455466A CN104455466A CN201410643251.1A CN201410643251A CN104455466A CN 104455466 A CN104455466 A CN 104455466A CN 201410643251 A CN201410643251 A CN 201410643251A CN 104455466 A CN104455466 A CN 104455466A
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- CN
- China
- Prior art keywords
- fixing ring
- sealing
- inflation
- ring
- deflation
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
- F16J15/48—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings influenced by the pressure within the member to be sealed
Abstract
The invention discloses a special-shaped sealing ring based on inflation and deflation. The special-shaped sealing ring based on inflation and deflation comprises a sealing ring rubber body and three parallel protruding solid edges arranged on the sealing surface of the special-shaped sealing ring, wherein the three solid edges are tightly attached to the sealing surface when the special-shaped sealing ring is inflated and expands, so that three sealing surfaces are formed. The invention further discloses a sealing method based on the special-shaped sealing rings. According to the sealing method, a sealing piece is installed in the circumferential direction of a gate, sealing is achieved through inflation and deflation, and using is convenient; in addition, due to the fact that two special-shaped sealing rings are adopted for sealing, the sealing reliability of a collection chamber is improved. The three solid edges are formed on the sealing surface of the sealing ring, in this way, when the special-shaped sealing ring is inflated and expands, the three solid edges are tightly attached to the sealing surface, the three sealing surfaces are formed, and the sealing reliability of the collection chamber is improved.
Description
Technical field
The present invention relates to a kind of water-tight equipment, particularly relate to a kind of based on inflation/deflation fixing ring and utilize sealing circle to carry out the encapsulating method of collecting chamber sealing.
Background technique
At present, spacecraft total leak rate characterization processes mainly adopts antivacuum helium mass spectrum Integrating dosemeters technique, and spacecraft total leak rate detection system is primarily of compositions such as collecting chamber, leak detector, recycle pump, reference gas, orthobaric volumes.Wherein, collecting chamber is one of equipment of core the most, its effect is to provide the Tracer gas leaked in order to collect astrovehicle in an airtight space, if the sealing effect of collecting chamber is bad, then directly cause the decline of precision of detecting leak gas, therefore, the sealing realizing collecting chamber is even more important, just because of this, the invention provides a kind of based on inflation/deflation fixing ring, also provide the application of sealing circle simultaneously.
Summary of the invention
The object of this invention is to provide a kind of based on inflation/deflation fixing ring, sealing circle reliably can realize the sealing of collecting chamber.
In addition, another object of the present invention is to provide a kind of encapsulating method based on inflation/deflation fixing ring, and the method can realize the sealing of collecting chamber easily.Fixing ring mainly vacuumizes by it, and seal ring is in takes out flat state, is closed at gate; In fixing ring, be filled with the gas of certain pressure, seal ring is expanded, form effective sealing with sealing surface 1, thus realize the highly reliable sealing of collecting chamber.
Concrete scheme provided by the present invention is as follows:
A kind of based on inflation/deflation fixing ring, the solid rib in projection three road side by side on the sealing surface comprising rubber sealing ring body and be arranged on fixing ring, when fixing ring inflation, the three solid ribs in road will fit tightly with sealing surface, form three seals face.
Wherein, the spacing of the three solid ribs in road is equal to each other.
Utilize above-mentioned inflation/deflation fixing ring to seal an encapsulating method for spacecraft total leak rate detection collecting chamber cavity and door body, be arranged between collecting chamber cavity sealing surface and door body by two pass inflation/deflation special-shaped seal ring, described method comprises the steps:
Find time: utilize vacuum pump or vacuum generator to vacuumize fixing ring, seal ring is taken out flat, take out flat after envelope size be less than seal groove size, opened by door body, astrovehicle product to be tested advances in collecting chamber cavity;
Inflation: the pressurized air being filled with certain pressure in fixing ring, makes seal ring expand, and formed with sealing surface and seal;
Leak detection: carry out integral leakage test to astrovehicle product to be detected, period will ensure the pressure stability be filled with in fixing ring, and ensures not power-off;
Find time: after astrovehicle product test to be detected completes, fixing ring is vacuumized again, seal ring is taken out flat, take out flat after envelope size be less than seal groove size, door body is opened, exits astrovehicle product;
Stopping is found time: stop vacuumizing fixing ring, make its clear-cutting forestland.
Wherein, described pressure is 0.4MPa-0.7MPa.
Compared with existing encapsulating method, encapsulating method of the present invention is without the need to threshold, by the circumference at gate, Sealing is installed, and realize sealing by the seal ring of inflation/deflation, therefore, the sealing surface bottom gate is the base plate of collecting chamber, without the need to adding threshold again, during use, the direct turnover of product can be realized, easy to use.In addition, adopt the seal form of two pass fixing ring, one seal ring is wherein Redundancy Design, considerably increases the reliability of collecting chamber sealing; Fixing ring of the present invention is at the solid rib in its sealing surface Shang You tri-road, and when fixing ring inflation, the three solid ribs in road will fit tightly with sealing surface, forms three seals face, further increases the reliability of collecting chamber sealing.
Accompanying drawing explanation
Fig. 1 be of the present invention based on inflation/deflation fixing ring in sealing spacecraft total leak rate detection collecting chamber cavity and the using state of door body.
In Fig. 1: 1 sealing surface; 2 seal grooves; 3 fixing rings; 4 bodies.
Embodiment
What below introduce is embodiment as content of the present invention, further illustrates content of the present invention below by embodiment.Certainly, describe the content that following detailed description is only example different aspect of the present invention, and should not be construed as the restriction scope of the invention.
As shown in fig. 1, use in encapsulating method of the present invention based on inflation/deflation fixing ring, comprise rubber sealing ring body and be arranged on fixing ring sealing surface on the solid rib in projection three road side by side, when fixing ring inflation, the three solid ribs in road will fit tightly with sealing surface, form three seals face.
In the specific embodiment of the present invention shown in Fig. 1, present invention employs the seal form of two pass fixing ring, two pass inflation/deflation special-shaped seal ring is arranged in the seal groove 2 between collecting chamber cavity sealing surface and door body, first fixing ring 3 is vacuumized, fixing ring 3 is in takes out flat state, is closed by door body 4; In fixing ring 3, be filled with the gas of certain pressure, pressure can be such as 0.4MPa-0.7MPa, fixing ring 3 is expanded, forms effective sealing with sealing surface 1, thus realizes the highly reliable sealing of collecting chamber.Specifically, utilize minipump or vacuum generator to vacuumize fixing ring 3, fixing ring 3 taken out flat, take out flat after envelope size be less than the size of seal groove 2, door body 4 to be opened, and by spacecraft propulsion collecting chamber cavity to be measured; In fixing ring 3, be filled with the pressurized air of certain pressure, fixing ring 3 is expanded, and formed with sealing surface 1 and seal; Test the integral leakage of astrovehicle product, period will ensure the pressure stability be filled with in fixing ring, and guarantee can not power-off.After astrovehicle product test completes, fixing ring 3 is vacuumized again, seal ring is taken out flat, take out flat after envelope size be less than seal groove 2 size, door body 4 is opened, astrovehicle product release after, door body 4 is shut; Stop vacuumizing fixing ring 3, make its clear-cutting forestland.
Although be described in detail the specific embodiment of the present invention above and illustrate, but what should indicate is, we can make various changes and modifications above-mentioned mode of execution, but these do not depart from spirit of the present invention and the scope described in appended claim.
Claims (4)
1. one kind based on inflation/deflation fixing ring, comprise rubber sealing ring body and be arranged on fixing ring sealing surface on the solid rib in projection three road side by side, when fixing ring inflation, the three solid ribs in road will fit tightly with sealing surface, form three seals face.
2. fixing ring as claimed in claim 1, wherein, the spacing of the three solid ribs in road is equal to each other.
3. the encapsulating method utilizing the inflation/deflation fixing ring described in claim 1 or 2 to seal spacecraft total leak rate detection collecting chamber cavity and door body, be arranged between collecting chamber cavity sealing surface and door body by two pass inflation/deflation special-shaped seal ring, described method comprises the steps:
Find time: utilize vacuum pump or vacuum generator to vacuumize fixing ring, seal ring is taken out flat, take out flat after envelope size be less than seal groove size, opened by door body, astrovehicle product to be tested advances in collecting chamber cavity;
Inflation: the pressurized air being filled with certain pressure in fixing ring, makes seal ring expand, and formed with sealing surface and seal;
Leak detection: carry out integral leakage test to astrovehicle product to be detected, period will ensure the pressure stability be filled with in fixing ring, and ensures not power-off;
Find time: after astrovehicle product test to be detected completes, fixing ring is vacuumized again, seal ring is taken out flat, take out flat after envelope size be less than seal groove size, door body is opened, exits astrovehicle product;
Stopping is found time: stop vacuumizing fixing ring, make its clear-cutting forestland.
4. encapsulating method as claimed in claim 3, wherein, described pressure is 0.4MPa-0.7MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410643251.1A CN104455466A (en) | 2014-11-07 | 2014-11-07 | Special-shaped sealing ring based on inflation and deflation and sealing method based on same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410643251.1A CN104455466A (en) | 2014-11-07 | 2014-11-07 | Special-shaped sealing ring based on inflation and deflation and sealing method based on same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104455466A true CN104455466A (en) | 2015-03-25 |
Family
ID=52901991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410643251.1A Pending CN104455466A (en) | 2014-11-07 | 2014-11-07 | Special-shaped sealing ring based on inflation and deflation and sealing method based on same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104455466A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106419161A (en) * | 2016-10-31 | 2017-02-22 | 南阳医学高等专科学校 | Anti-theft alarm article cabinet used in nursing department |
| CN106490856A (en) * | 2016-10-31 | 2017-03-15 | 南阳医学高等专科学校 | A kind of Multifunctional protective natural sciences data cabinet |
| CN106522739A (en) * | 2016-10-31 | 2017-03-22 | 南阳医学高等专科学校 | Management cabinet of nursing department |
| CN110360320A (en) * | 2019-06-06 | 2019-10-22 | 重庆精测自动化设备有限公司 | Hole sealing device for airtight detection |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5868546A (en) * | 1981-10-16 | 1983-04-23 | Hoei Kogyo Kk | Sealing device for piston head |
| CN201407358Y (en) * | 2009-05-05 | 2010-02-17 | 马志刚 | Internal-pressing seal ring |
| CN203230855U (en) * | 2013-04-24 | 2013-10-09 | 上海东富龙爱瑞思科技有限公司 | Isolator door sealing system for medicine |
| CN203757001U (en) * | 2013-12-28 | 2014-08-06 | 楚天科技股份有限公司 | Air-charging sealing ring assembly |
| CN104100722A (en) * | 2014-06-30 | 2014-10-15 | 南京皓威机械有限公司 | Inflatable type seal ring |
-
2014
- 2014-11-07 CN CN201410643251.1A patent/CN104455466A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5868546A (en) * | 1981-10-16 | 1983-04-23 | Hoei Kogyo Kk | Sealing device for piston head |
| CN201407358Y (en) * | 2009-05-05 | 2010-02-17 | 马志刚 | Internal-pressing seal ring |
| CN203230855U (en) * | 2013-04-24 | 2013-10-09 | 上海东富龙爱瑞思科技有限公司 | Isolator door sealing system for medicine |
| CN203757001U (en) * | 2013-12-28 | 2014-08-06 | 楚天科技股份有限公司 | Air-charging sealing ring assembly |
| CN104100722A (en) * | 2014-06-30 | 2014-10-15 | 南京皓威机械有限公司 | Inflatable type seal ring |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106419161A (en) * | 2016-10-31 | 2017-02-22 | 南阳医学高等专科学校 | Anti-theft alarm article cabinet used in nursing department |
| CN106490856A (en) * | 2016-10-31 | 2017-03-15 | 南阳医学高等专科学校 | A kind of Multifunctional protective natural sciences data cabinet |
| CN106522739A (en) * | 2016-10-31 | 2017-03-22 | 南阳医学高等专科学校 | Management cabinet of nursing department |
| CN110360320A (en) * | 2019-06-06 | 2019-10-22 | 重庆精测自动化设备有限公司 | Hole sealing device for airtight detection |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20150325 |