CN110274027A - Easy-to-mount sealing structure and its assembly and disassembly methods - Google Patents
Easy-to-mount sealing structure and its assembly and disassembly methods Download PDFInfo
- Publication number
- CN110274027A CN110274027A CN201910656141.1A CN201910656141A CN110274027A CN 110274027 A CN110274027 A CN 110274027A CN 201910656141 A CN201910656141 A CN 201910656141A CN 110274027 A CN110274027 A CN 110274027A
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- China
- Prior art keywords
- component
- gas
- flow closure
- card
- sealing ring
- 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
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
Abstract
The present invention relates to easy-to-mount sealing structure and its assembly and disassembly methods, the structure includes sealing ring, clip assembly, the first gas-flow closure circle and the second gas-flow closure circle, the first component and second component are plugged in clip assembly, sealing ring is placed in clip assembly, and sealing ring is between the first component and second component, it is connected with the first gas-flow closure circle between the first component and sealing ring, the second gas-flow closure circle is connected between second component and sealing ring.The inflation that the present invention passes through the first gas-flow closure circle and the second gas-flow closure circle, by clip assembly, the inflation opening force of the first gas-flow closure circle and the second gas-flow closure circle is born by clip assembly, reduce the rigidity requirement to the first component and second component, and it need to only dismount the fastener between clip assembly and sealing ring, i.e. removable sealing structure realizes the sealing docking mode of the formula easy to disassemble between the first component and second component.
Description
Technical field
The present invention relates to sealing structures, more specifically refer to easy-to-mount sealing structure and its assembly and disassembly methods.
Background technique
The size of some Large-Scale Equipment complete machines often exceeds the limitation of haulage vehicle and building elevator, makes to meet
With, it has in such a way that module fractionation assembles again, and the manufacturing process in fields such as cell culture, the sealing of equipment
Property it is particularly important, but equipment cannot exceed the load-carrying of elevator again, therefore need to consider to design that a kind of lightweight is easy to assemble, good airproof performance
Technological means.Existing sealing structure is sealed using flange form, pushes down sealing particular by the very thick flange in the left and right sides
Circle, and a circle bolt is locked on this basis, but this sealing docking mode is high to intensity requirement, so that machine weight is inclined
Height is not easy to dismount.
Therefore, it is necessary to design a kind of new sealing structure, the sealing docking mode of formula easy to disassemble is realized.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, easy-to-mount sealing structure and its dismounting side are provided
Method.
To achieve the above object, it the invention adopts the following technical scheme: easy-to-mount sealing structure, is installed on and connects
Between the first component and second component, including sealing ring, clip assembly, the first gas-flow closure circle and the second gas-flow closure circle,
The first component and the second component are plugged in the clip assembly, and the sealing ring is placed in the clip assembly
It is interior, and the sealing ring is between the first component and the second component, between the first component and the sealing ring
It is connected with the first gas-flow closure circle, second gas-flow closure is connected between the second component and the sealing ring
Circle.
Its further technical solution are as follows: the side that the sealing ring is connect with the first component forms the towards sunken inside
One groove ring；The first gas-flow closure circle is placed in the first groove ring.
Its further technical solution are as follows: the side that the sealing ring is connect with the second component forms the towards sunken inside
Two groove rings；The second gas-flow closure circle is placed in the second groove ring.
Its further technical solution are as follows: the upper end of the clip assembly is recessed down, is formed with card slot, the sealing
Ring, the first component and second component are respectively placed in the card slot.
Its further technical solution are as follows: the clip assembly includes sequentially connected first strip, the first card hornblock, second
Strip and the second card hornblock, the second card hornblock are connect with first strip, the first card hornblock and described second
Card hornblock is connect with the sealing ring respectively, the upper surface of first strip, the upper surface of the first card hornblock, the second strip
Upper surface and the upper surface of the second card hornblock form link slot, the link slot of first strip, first respectively towards lower recess
The link slot of the link slot of card hornblock, the link slot of the second strip and the second card hornblock is enclosed the card slot.
Its further technical solution are as follows: limited post, first strip and described second are connected on the sealing ring
Strip is connect with the limited post respectively.
Its further technical solution are as follows: the first card hornblock and the second card hornblock pass through fastener and institute respectively
State sealing ring connection.
Its further technical solution are as follows: the first component is equipped with the first opening close to the side of the sealing ring, described
First opening is equipped with the first side wall, and the first side wall is plugged in the card slot.
Its further technical solution are as follows: the second component is equipped with the second opening close to the side of the sealing ring, described
Second opening is equipped with second sidewall, and the second sidewall is plugged in the card slot.
The present invention also provides the assembly and disassembly methods of easy-to-mount sealing structure, comprising:
During installation, the first gas-flow closure circle and the second gas-flow closure circle are mounted on sealing ring, and by sealing ring
It is placed in clip assembly, clip assembly to the first component and second component is pushed to be plugged in clip assembly, it is close to the first inflation
Seal and the second gas-flow closure circle are inflated.
In disassembly, after deflating to the first gas-flow closure circle and the second gas-flow closure circle, clip assembly is pushed extremely
The first component and second component are detached from clip assembly, take out clip assembly, and take out out of sealing ring the first gas-flow closure circle with
And the second gas-flow closure circle.
Compared with the prior art, the invention has the advantages that: the present invention passes through the first gas-flow closure circle and the second inflation
The inflation of sealing ring, to sealing is played the role of between sealing ring and the first component and second component, by clip assembly, to
One component, second component and sealing ring play the role of improve leakproofness, by clip assembly bear the first gas-flow closure circle with
And second gas-flow closure circle inflation opening force, reduce to the rigidity requirement of the first component and second component, and need to only dismount card
Fastener between connected components and sealing ring, i.e., removable sealing structure are realized and are convenient between the first component and second component
The sealing docking mode of reassembling type.
The invention will be further described in the following with reference to the drawings and specific embodiments.
Detailed description of the invention
Technical solution in order to illustrate the embodiments of the present invention more clearly, below will be to needed in embodiment description
Attached drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic perspective view for the easy-to-mount sealing structure that the specific embodiment of the invention provides；
Fig. 2 is the schematic view of the front view for the easy-to-mount sealing structure that the specific embodiment of the invention provides；
Fig. 3 is the cutting structural schematic diagram for the easy-to-mount sealing structure that the specific embodiment of the invention provides；
Fig. 4 is the left view structural representation for the easy-to-mount sealing structure that the specific embodiment of the invention provides；
Fig. 5 is the configuration schematic diagram for the easy-to-mount sealing structure that the specific embodiment of the invention provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
It should be appreciated that ought use in this specification and in the appended claims, term " includes " and "comprising" instruction
Described feature, entirety, step, operation, the presence of element and/or component, but one or more of the other feature, whole is not precluded
Body, step, operation, the presence or addition of element, component and/or its set.
It is also understood that mesh of the term used in this description of the invention merely for the sake of description specific embodiment
And be not intended to limit the present invention.As description of the invention and it is used in the attached claims, unless on
Other situations are hereafter clearly indicated, otherwise " one " of singular, "one" and "the" are intended to include plural form.
It will be further appreciated that the term "and/or" used in description of the invention and the appended claims is
Refer to any combination and all possible combinations of one or more of associated item listed, and including these combinations.
The specific embodiment as shown in Fig. 1~5, easy-to-mount sealing structure provided in this embodiment, can be used in
In two seal process having between the component of opening.
Above-mentioned easy-to-mount sealing structure is installed on the first component 10 to connect and second referring to FIG. 1 to FIG. 4,
Between part 20, which includes sealing ring 30, clip assembly, the first gas-flow closure circle 31 and second fills
Airtight seal 32, the first component 10 and second component 20 are plugged in clip assembly, and sealing ring 30 is placed in clip assembly, and
Sealing ring 30 is connected with first and fills between the first component 10 and second component 20 between the first component 10 and sealing ring 30
Airtight seal 31 is connected with the second gas-flow closure circle 32 between second component 20 and sealing ring 30.
Utilize the first gas-flow closure circle 31 and the inflation tensioner first component 10, the second component of the second gas-flow closure circle 32
20 and sealing ring 30, it reduces using fasteners 60 such as bolts, entire cost can be reduced, and easy to disassemble.
In addition, the limit and clamping of the first component 10, second component 20 and sealing ring 30 are realized by clip assembly, it can
Improve the seal degree of entire sealing structure.
In one embodiment, referring to Fig. 5, the side that connect with the first component 10 of above-mentioned sealing ring 30 is towards sunken inside,
Form the first groove ring；First gas-flow closure circle 31 is placed in the first groove ring.
First groove ring can play the role of limit to the installation of the first gas-flow closure circle 31, be convenient for Fast Installation.
In one embodiment, referring to Fig. 5, the side that connect with second component 20 of sealing ring 30 is towards sunken inside, the is formed
Two groove rings 33；Second gas-flow closure circle 32 is placed in the second groove ring 33.Second groove ring 33 can be to the second gas-flow closure
Limit is played the role of in the installation of circle 32, is convenient for Fast Installation.
In one embodiment, referring to Fig. 5, the upper end of above-mentioned clip assembly is recessed down, it is formed with card slot, is sealed
Ring 30, the first component 10 and second component 20 are respectively placed in card slot.
Card slot plays the role of limit to the installation of sealing ring 30, the first component 10 and second component 20, both can be so as to
In dismounting, the first component 10 can also be made reversely to compress the first gas-flow closure circle by the active force of card slot and the first component 10
31, to improve the leakproofness between the first component 10 and sealing ring 30, card slot makes second to the active force of second component 20
Part 20 reversely compresses the second gas-flow closure circle 32, to improve the leakproofness between second component 20 and sealing ring 30.
In one embodiment, referring to Fig. 5, above-mentioned clip assembly includes that sequentially connected first strip 40, first blocks
Hornblock 41, the second strip 42 and the second card hornblock 43, the second card hornblock 43 are connect with the first strip 40, the first card hornblock 41 with
Second card hornblock 43 is connect with sealing ring 30 respectively, the upper surface of the first strip 40, the upper surface of the first card hornblock 41, the second card
The upper surface of item 42 and the upper surface of the second card hornblock 43 form link slot, the connection of the first strip 40 respectively towards lower recess
Slot, the link slot of the first card hornblock 41, the link slot of the second strip 42 and the second card hornblock 43 link slot be enclosed card
Slot.
It bears to open brought by the first gas-flow closure circle 31 and 32 inflation of the second gas-flow closure circle using card slot
Power reduces the rigidity requirement to the first component 10 and second component 20.
It, can also be by corresponding in the first gas-flow closure circle 31 of detection and the second gas-flow closure circle 32 in other embodiments
Pressure, with achieve the effect that monitor sealing state.
Specifically, the first above-mentioned card hornblock 41 and the second card hornblock 43 are arranged in arc-shaped, to reduce to first
The damage of part 10 and second component 20.
In one embodiment, referring to Fig. 5, being connected with limited post 50 on above-mentioned sealing ring 30, the first strip 40 and
Second strip 42 is connect with limited post 50 respectively.
Specifically, it is respectively equipped on above-mentioned the first strip 40 and the second strip 42 and is plugged in interior limit for limited post 50
Slot.
In the present embodiment, above-mentioned limited post 50 includes pin, certainly, in other embodiments, above-mentioned limited post 50
It can also be bolt etc., the position of the first strip 40 and the second strip 42 be limited by the limited post 50, so that the first strip
40 and second strip 42 it is parallel with sealing ring 30 respectively.
In one embodiment, the first above-mentioned card hornblock 41 and the second card hornblock 43 pass through fastener 60 and sealing respectively
Ring 30 connects.It only needs to dismount the first card hornblock 41 and the second card hornblock 43 and connect fastener used with sealing ring 30 respectively
60, the dismounting of entire sealing structure can be realized, realize the effect of fast assembling-disassembling.
Specifically, above-mentioned fastener 60 is including bolt etc. in the present embodiment.
In one embodiment, Fig. 3 and Fig. 5 are please referred to, the above-mentioned first component 10 is equipped with the close to the side of sealing ring 30
One opening, the first opening are equipped with the first side wall 12, and the first side wall 12 is plugged in card slot.
The first above-mentioned card hornblock 41 pushes down the upper left corner of the first side wall 12, and is connect by bolt with sealing ring 30, the
One strip 40 pushes down the first side wall 12, and the second fixture block pushes down the lower right corner of the first side wall 12, and passes through bolt and sealing ring 30
Connection.
In one embodiment, Fig. 3 and Fig. 5 are please referred to, above-mentioned second component 20 is equipped with the close to the side of sealing ring 30
Two openings, the second opening are equipped with second sidewall 22, and second sidewall 22 is plugged in card slot.
The first above-mentioned card hornblock 41 pushes down the upper left corner of second sidewall 22, and the first strip 40 pushes down second sidewall 22, and
Second fixture block pushes down the lower right corner of second sidewall 22.
Sealing structure precision requirement up and down in docking is lower, and the first side wall 12 and second sidewall 22 do not need
Special processing, and good seal performance reduce the requirement to the first component 10 and second component 20 surface planarity and roughness.
In one embodiment, referring to Fig. 5, side of the above-mentioned first component 10 far from sealing ring 30 is logical equipped with first
Hole is sealed with the first sealing blind plate 11 in the first through hole, and user can be carried out by the first through hole into the first component 10
Other operations such as liquid feeding.
Specifically, the first sealing sealing ring is connected in above-mentioned first through hole, the first above-mentioned sealing blind plate 11 passes through
The fasteners such as bolt 60 compress the first sealing sealing ring, to play the sealing function to first through hole.
In one embodiment, referring to Fig. 5, side of the above-mentioned second component 20 far from sealing ring 30 is logical equipped with second
Hole is sealed with the second sealing blind plate 21 on second through-hole, and user can be carried out by second through-hole into the second component 20
Other operations such as liquid feeding.
Specifically, the second sealing sealing ring 23 is connected on the second above-mentioned through-hole, the second above-mentioned sealing blind plate 21 is logical
It crosses the fasteners such as bolt 60 and compresses the second sealing sealing ring 23, to play the sealing function to the second through-hole.
Above-mentioned easy-to-mount sealing structure passes through filling for the first gas-flow closure circle 31 and the second gas-flow closure circle 32
Gas plays the role of sealing between sealing ring 30 and the first component 10 and second component 20, by clip assembly, to first
Part 10, second component 20 and sealing ring 30 play the role of improving leakproofness, bear the first gas-flow closure circle by clip assembly
31 and second gas-flow closure circle 32 inflation opening force, reduce to the rigidity requirement of the first component 10 and second component 20, and
Fastener 60 between clip assembly and sealing ring 30 need to only be dismounted, i.e., removable sealing structure realizes the first component 10 and the
The sealing docking mode of formula easy to disassemble between two components 20.
In one embodiment, the assembly and disassembly methods of easy-to-mount sealing structure are additionally provided, comprising:
During installation, the first gas-flow closure circle 31 and the second gas-flow closure circle 32 are mounted on sealing ring 30, and will
Sealing ring 30 is placed in clip assembly, and clip assembly to the first component 10 and second component 20 is pushed to be plugged in clip assembly,
First gas-flow closure circle 31 and the second gas-flow closure circle 32 are inflated.
In disassembly, after deflating to the first gas-flow closure circle 31 and the second gas-flow closure circle 32, clamping group is pushed
Part to the first component 10 and second component 20 is detached from clip assembly, takes out clip assembly, and takes out first out of sealing ring 30 and fill
Airtight seal 31 and the second gas-flow closure circle 32.
Specifically, during installation, the first gas-flow closure circle 31 and the second gas-flow closure circle 32 are correspondingly embedded in sealing
In the first groove ring and the second groove ring 33 of ring 30, limited post 50 is mounted on sealing ring 30, and by the first strip 40,
First card hornblock 41, the second strip 42 and the second card hornblock 43 are mounted by limited post 50 and fastener 60, and
The first component 10 and second component 20 and sealing ring 30 are compared, the first strip 40, the first card hornblock 41, second card are pushed
Item 42 and the second card hornblock 43, so that the first strip 40, the first card hornblock 41, the second strip 42 and the second card hornblock 43 card
Firmly the first side wall 12 and second sidewall 22, and the first gas-flow closure circle 31 and the second gas-flow closure circle 32 are inflated,
And the first sealing blind plate 11 and the second sealing blind plate 21 are installed.
In dismounting, bleed air operation is carried out to the first gas-flow closure circle 31 and the second gas-flow closure circle 32, and pushes the
One strip 40, the first card hornblock 41, the second strip 42 and the second card hornblock 43 so that the first strip 40, the first card hornblock 41,
Second strip 42 and the second card hornblock 43 unclamp the first side wall 12 and second sidewall 22, dismantle limited post 50 and fastener
60, and the first strip 40, the first card hornblock 41, the second strip 42 and the second card hornblock 43 are removed, by the first gas-flow closure circle
31 and second gas-flow closure circle 32 taken out out of sealing ring 30.
It should be noted that it is apparent to those skilled in the art that, above-mentioned easy-to-mount sealing knot
The specific implementation process of the assembly and disassembly methods of structure can refer to the corresponding description in aforementioned easy-to-mount sealing structure embodiment,
For convenience of description and succinctly, details are not described herein.
It is above-mentioned that technology contents of the invention are only further illustrated with embodiment, in order to which reader is easier to understand, but not
It represents embodiments of the present invention and is only limitted to this, any technology done according to the present invention extends or recreation, by of the invention
Protection.Protection scope of the present invention is subject to claims.
Claims (10)
1. easy-to-mount sealing structure is installed between the first component and second component to connect, which is characterized in that including close
Seal ring, clip assembly, the first gas-flow closure circle and the second gas-flow closure circle, the first component and the second component are inserted
Be located in the clip assembly, the sealing ring is placed in the clip assembly, and the sealing ring be located at the first component and
Between the second component, it is connected with the first gas-flow closure circle between the first component and the sealing ring, described
The second gas-flow closure circle is connected between two components and the sealing ring.
2. easy-to-mount sealing structure according to claim 1, which is characterized in that the sealing ring and described first
The side of part connection forms the first groove ring towards sunken inside；The first gas-flow closure circle is placed in the first groove ring.
3. easy-to-mount sealing structure according to claim 1, which is characterized in that the sealing ring and described second
The side of part connection forms the second groove ring towards sunken inside；The second gas-flow closure circle is placed in the second groove ring.
4. easy-to-mount sealing structure according to any one of claims 1 to 3, which is characterized in that the clip assembly
Upper end be recessed down, be formed with card slot, the sealing ring, the first component and second component are respectively placed in the card slot
It is interior.
5. easy-to-mount sealing structure according to claim 4, which is characterized in that the clip assembly includes successively connecting
The first strip, the first card hornblock, the second strip and the second card hornblock connect, the second card hornblock and first strip connect
It connects, the first card hornblock is connect with the sealing ring respectively with the second card hornblock, the upper surface of first strip,
The upper surface of the upper surface of one card hornblock, the upper surface of the second strip and the second card hornblock towards lower recess, forms connection respectively
Slot, the company of the link slot of first strip, the link slot of the first card hornblock, the link slot of the second strip and the second card hornblock
Access slot is enclosed the card slot.
6. easy-to-mount sealing structure according to claim 5, which is characterized in that be connected with limit on the sealing ring
Column, first strip and second strip are connect with the limited post respectively.
7. easy-to-mount sealing structure according to claim 5, which is characterized in that the first card hornblock and described
Second card hornblock passes through fastener respectively and connect with the sealing ring.
8. easy-to-mount sealing structure according to claim 5, which is characterized in that the first component is close to described close
The side of seal ring is equipped with the first opening, and first opening is equipped with the first side wall, and the first side wall is plugged in the card slot
It is interior.
9. easy-to-mount sealing structure according to claim 5, which is characterized in that the second component is close to described close
The side of seal ring is equipped with the second opening, and second opening is equipped with second sidewall, and the second sidewall is plugged in the card slot
It is interior.
10. the assembly and disassembly methods of easy-to-mount sealing structure characterized by comprising
During installation, the first gas-flow closure circle and the second gas-flow closure circle are mounted on sealing ring, and sealing ring is placed in
In clip assembly, clip assembly to the first component and second component is pushed to be plugged in clip assembly, to the first gas-flow closure circle
And second gas-flow closure circle be inflated.
In disassembly, after deflating to the first gas-flow closure circle and the second gas-flow closure circle, push clip assembly to first
Component and second component are detached from clip assembly, take out clip assembly, and take out out of sealing ring the first gas-flow closure circle and the
Two gas-flow closure circles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910656141.1A CN110274027A (en) | 2019-07-19 | 2019-07-19 | Easy-to-mount sealing structure and its assembly and disassembly methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910656141.1A CN110274027A (en) | 2019-07-19 | 2019-07-19 | Easy-to-mount sealing structure and its assembly and disassembly methods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110274027A true CN110274027A (en) | 2019-09-24 |
Family
ID=67964967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910656141.1A Pending CN110274027A (en) | 2019-07-19 | 2019-07-19 | Easy-to-mount sealing structure and its assembly and disassembly methods |
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| Country | Link |
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| CN (1) | CN110274027A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236092A (en) * | 2021-06-09 | 2021-08-10 | 中国人民解放军63653部队 | Zipper door with high sealing performance |
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| US20020063398A1 (en) * | 2000-11-24 | 2002-05-30 | Norman-Martin Christopher M. | Seal for pressure vessels |
| US20020093634A1 (en) * | 2000-11-17 | 2002-07-18 | Nikon Corporation | Quick chamber seals |
| US20030102637A1 (en) * | 2000-01-14 | 2003-06-05 | Willy Hamel | Adjustable anti-inundation sealing system |
| EP3023674A2 (en) * | 2014-11-24 | 2016-05-25 | Thomas Schneider | Closure and gasket |
| CN210290765U (en) * | 2019-07-19 | 2020-04-10 | 深圳赛动生物自动化有限公司 | Sealing structure convenient to disassemble and assemble |
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2019
- 2019-07-19 CN CN201910656141.1A patent/CN110274027A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030102637A1 (en) * | 2000-01-14 | 2003-06-05 | Willy Hamel | Adjustable anti-inundation sealing system |
| US20020093634A1 (en) * | 2000-11-17 | 2002-07-18 | Nikon Corporation | Quick chamber seals |
| US20020063398A1 (en) * | 2000-11-24 | 2002-05-30 | Norman-Martin Christopher M. | Seal for pressure vessels |
| EP3023674A2 (en) * | 2014-11-24 | 2016-05-25 | Thomas Schneider | Closure and gasket |
| CN210290765U (en) * | 2019-07-19 | 2020-04-10 | 深圳赛动生物自动化有限公司 | Sealing structure convenient to disassemble and assemble |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236092A (en) * | 2021-06-09 | 2021-08-10 | 中国人民解放军63653部队 | Zipper door with high sealing performance |
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