CN207486276U - A kind of vacuum sealing flange - Google Patents
A kind of vacuum sealing flange Download PDFInfo
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- CN207486276U CN207486276U CN201721245493.0U CN201721245493U CN207486276U CN 207486276 U CN207486276 U CN 207486276U CN 201721245493 U CN201721245493 U CN 201721245493U CN 207486276 U CN207486276 U CN 207486276U
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- sealing ring
- gas
- sealing
- vacuum
- guide tube
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Abstract
The utility model discloses a kind of vacuum sealing flanges, including disk body, through-hole, connecting hole, the disk body is equipped with the first sealing ring and the second sealing ring, gas port is equipped between first sealing ring and the second sealing ring, the gas port is through the disk body and with sealing-plug.The beneficial effects of the utility model：Vacuum plant is increased on the basis of original flange, the leakproofness of flange gets a promotion, and service life is extended.
Description
Technical field
The application category mechanical manufacturing field, specifically, being related to a kind of vacuum sealing flange.
Background technology
With the development of science and technology, machinery manufacturing industry is maked rapid progress, the promotion of productivity level is driven, flange is as pipeline
The significant components of connection because of actual demand, derive numerous species, such as slip-on-welding plate flange, hubbed clip-on-welding flange, band neck pair
Welding method orchid, screwed flange and socket welding flange etc., existing flange is in connection generally all using bolt and another flange
Connection, due to the aging of bolt, the leakproofness of flange is affected or even also occurs that phenomena such as coming off, and shortens flange
Service life.
Invention content
In view of this, technical problems to be solved in this application improve flange there is provided a kind of vacuum sealing flange
The leakproofness of connection, while extend the service life of flange.
In order to solve the above-mentioned technical problem, this application discloses a kind of vacuum sealing flange, including disk body, through-hole, connection
Hole, the disk body are equipped with the first sealing ring and the second sealing ring, are equipped between first sealing ring and the second sealing ring by institute
Gas port derived from the internal gas of cavity that the first sealing ring and the second sealing ring are formed is stated, the gas outlet of the gas port is set
There is sealing-plug.
More preferably：The gas port be equipped with gas-guide tube, the gas-guide tube far from the first sealing ring and the second sealing ring one
End is equipped with sealing cover, and better seal is carried out to the gas port after facilitating vacuum.
More preferably：The described one end of air guide pipe outer wall far from the first sealing ring and the second sealing ring is equipped with screw thread, described close
Capping inner wall is equipped with the screw thread to match with the screw thread, enhances the leakproofness of the gas-guide tube and the sealing cover.
More preferably：Vacuum control check valve is equipped in the gas-guide tube, prevents air return after vacuum.
More preferably：The gas-guide tube is glued with the gas port, and sealing is equipped between the air guide pipe outer wall and gas port
Device prevents air from flowing back by the gap between the gas-guide tube and the gas port.
More preferably：The disk body is equipped with gasket, reduces the erosion of the liquid or gas that are conveyed in pipeline to sealing ring.
Compared with prior art, the application can be obtained including following technique effect：
1) by way of vacuum, the leakproofness of flanged joint is improved, extends the service life of flange；
2) gasket is set in sealing ring internal layer, reduces the liquid conveyed in pipeline or gas liquid invades sealing ring
Erosion.
Certainly, implementing any product of the application must be not necessarily required to reach all the above technique effect simultaneously.
Description of the drawings
Attached drawing described herein is used for providing further understanding of the present application, forms the part of the application, this Shen
Illustrative embodiments and their description please do not form the improper restriction to the application for explaining the application.In the accompanying drawings：
Fig. 1 is the structure diagram of the application first embodiment vacuum sealing flange；
Fig. 2 is the application the first implementation column vacuum sealing flange working method schematic diagram；
Fig. 3 is the structure diagram of the application second embodiment vacuum sealing flange；
Fig. 4 is the application second embodiment vacuum sealing flange working method schematic diagram.
Description of symbols in figure：1st, disk body, 2, through-hole, 3, connecting hole, the 4, first sealing ring, the 5, second sealing ring, 6, air guide
Hole, 7, gas-guide tube, 8, vacuum control check valve, 9, sealing cover, 10, gasket, 11, sealing-plug.
Specific embodiment
Presently filed embodiment is described in detail below in conjunction with accompanying drawings and embodiments, thereby how the application is applied
Technological means can fully understand and implement according to this to solve technical problem and reach the realization process of technical effect.
As shown in Figure 1：A kind of vacuum sealing flange of the application first embodiment, including disk body 1, through-hole 2, connecting hole 3,
The first sealing ring 4 is equipped on disk body 1 and the second sealing ring 5, the two sealing rings are each provided at the connection between flange and flange
Face, when two flanges are bonded, the first sealing ring 4 and the second sealing ring 5 form toroidal cavity, in the first sealing ring 4 and second
Gas port 6 is equipped between sealing ring 5, the gas outlet of gas port 6 carries sealing-plug 11.
The working method of the application first embodiment：As shown in Fig. 2, two flanges are opposed, the first sealing ring 4, second
Sealing ring 5, gasket 10 mutually agree with, in the cavity for being formed the first sealing ring 4 and the second sealing ring 5 by gas port 6
Air extraction, sealing-plug 11 beyond the Great Wall, then with bolt by connecting hole 3 by two flanged joints together
As shown in Figure 3：The application also has the second implementation column, in order to preferably realize vacuum, using first embodiment as
Basis, is additionally provided with gas-guide tube 7 in gas port 6, and the one end of gas-guide tube 7 far from the first sealing ring 4 and the second sealing ring 5 is equipped with close
Capping 9, it is close far from the first sealing ring 4 and second in 7 outer wall of gas-guide tube in order to realize that gas-guide tube 7 is preferably connect with sealing cover 9
One end of seal 5 is equipped with screw thread, and the inner wall of sealing cover 9 also is provided with the screw thread to match with 7 outer wall of gas-guide tube.
Occur pumping interruption in pumping process in order to prevent and air return is caused to be set in gas-guide tube 7 into gas-guide tube 7
There is vacuum control check valve, in the connection mode of gas port 6 and gas-guide tube 7, in order to make its sealing effect more preferable, using the side of splicing
Formula is additionally provided with sealing device between the outer wall of gas-guide tube 7 and gas port 6, realizes dual-seal protection.
Due to may be corroded at the second sealing ring 5 by the liquid or gas conveyed in pipeline, in disk body 1 also
Equipped with gasket 10, the erosion of liquid or gas to sealing ring 5 is reduced.
The working method of the application second embodiment：As shown in figure 4, two flanges are opposed, the first sealing ring 4, second
Sealing ring 5, gasket 10 mutually agree with, in the cavity for being formed the first sealing ring 4 and the second sealing ring 5 by conduit 7
Air is extracted out, screws on sealing cover 9, then with bolt by connecting hole 3 by two flanged joints together.
The beneficial effects of the utility model：Vacuum plant is increased on the basis of original flange, the leakproofness of flange obtains
To promotion, service life is extended.
Several preferred embodiments of the present invention have shown and described in above description, but as previously described, it should be understood that this
Utility model is not limited to form disclosed herein, is not to be taken as the exclusion to other embodiment, and available for various
Other combinations, modification and environment, and above-mentioned introduction or related field can be passed through within the scope of the inventive concept described herein
Technology or knowledge be modified.And changes and modifications made by those skilled in the art do not depart from the spirit and model of the utility model
It encloses, then it all should be in the protection domain of the appended claims for the utility model.
Claims (6)
1. a kind of vacuum sealing flange, including disk body (1), through-hole (2), connecting hole (3), it is characterised in that：The disk body (1) sets
There are the first sealing ring (4) and the second sealing ring (5), be equipped with by described between first sealing ring (4) and the second sealing ring (5)
Gas port (6) derived from the internal gas for the cavity that first sealing ring (4) is formed with the second sealing ring (5), the gas port (6)
Gas outlet be equipped with sealing-plug (11).
2. vacuum sealing flange according to claim 1, it is characterised in that：The gas port (6) equipped with gas-guide tube (7),
The gas-guide tube (7) is equipped with sealing cover (9) far from the first sealing ring (4) and one end of the second sealing ring (5).
3. vacuum sealing flange according to claim 2, it is characterised in that：Gas-guide tube (7) outer wall is close far from first
One end of seal (4) and the second sealing ring (5) is equipped with screw thread, and sealing cover (9) inner wall is equipped with what is matched with the screw thread
Screw thread.
4. the vacuum sealing flange according to Claims 2 or 3, it is characterised in that：Stop in the gas-guide tube (7) equipped with vacuum
Return valve (8).
5. vacuum sealing flange according to claim 4, it is characterised in that：The gas-guide tube (7) and the gas port (6)
It is glued, sealing device is equipped between gas-guide tube (7) outer wall and gas port (6).
6. vacuum sealing flange according to claim 5, it is characterised in that：The disk body (1) is equipped with gasket (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721245493.0U CN207486276U (en) | 2017-09-26 | 2017-09-26 | A kind of vacuum sealing flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721245493.0U CN207486276U (en) | 2017-09-26 | 2017-09-26 | A kind of vacuum sealing flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207486276U true CN207486276U (en) | 2018-06-12 |
Family
ID=62483038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721245493.0U Active CN207486276U (en) | 2017-09-26 | 2017-09-26 | A kind of vacuum sealing flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207486276U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099242A (en) * | 2018-08-20 | 2018-12-28 | 烟台知兴知识产权咨询服务有限公司 | A kind of Heating,Ventilating and Air Conditioning assembling pipe joint |
-
2017
- 2017-09-26 CN CN201721245493.0U patent/CN207486276U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099242A (en) * | 2018-08-20 | 2018-12-28 | 烟台知兴知识产权咨询服务有限公司 | A kind of Heating,Ventilating and Air Conditioning assembling pipe joint |
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