CN204061360U - A kind of bellow type vacuum pumping device - Google Patents
A kind of bellow type vacuum pumping device Download PDFInfo
- Publication number
- CN204061360U CN204061360U CN201420460596.9U CN201420460596U CN204061360U CN 204061360 U CN204061360 U CN 204061360U CN 201420460596 U CN201420460596 U CN 201420460596U CN 204061360 U CN204061360 U CN 204061360U
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- CN
- China
- Prior art keywords
- spool
- valve body
- pumping device
- vacuum pumping
- mouth
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of bellow type vacuum pumping device, comprise and vacuumize mouth, valve body, valve rod, spool, the valve port of described valve body lower end by double sealing circle with vacuumize mouth and be connected, socket spool in valve body, spool top seal is connected to valve body upper end, and described spool lower end is connected with the plug vacuumized in mouth; Socket valve rod in described spool.Its scientific structure design, rationally, easy to use, vacuumize shutoff success rate high.
Description
Technical field
The utility model relates to a kind of vacuum pumping device, is specifically related to a kind of connection with vacuum stopper carry out vacuumizing and the bellow type vacuum pumping device of vacuum shutoff.
Background technique
Bellow type vacuum pumping device can be used for the vacuum stopper opening vacuum insulation vessel vacuum orifice, thus vacuumizes, and after vacuumizing, can carry out shutoff to vacuum insulation vessel vacuum orifice.
The functions such as vacuum insulation vessel vacuum orifice is rubber sealing, and it possesses sealing, secondary is opened and shell is explosion-proof, requiring very high to connected vacuum pumping device, mainly there is following difficult point in its design:
1, valve port and the connection that vacuumizes mouth need adopt seal ring motive sealing, easily loosen, gas leakage;
2, the connection of spool and valve body often rubs, easy to wear, gas leakage.
Model utility content
The purpose of this utility model is to provide a kind of bellow type vacuum pumping device, overcomes the above-mentioned deficiency of prior art, its scientific structure design, rationally, easy to use, vacuumizes shutoff success rate high.
In order to reach above-mentioned purpose of design, the technical solution adopted in the utility model is as follows:
A kind of bellow type vacuum pumping device, comprise and vacuumize mouth, valve body, valve rod, spool, the valve port of described valve body lower end by double sealing circle with vacuumize mouth and be connected, socket spool in valve body, spool top seal is connected to valve body upper end, and described spool lower end is connected with the plug vacuumized in mouth; Socket valve rod in described spool.
Preferably, described valve body lower end interlocking locking nut, is provided with hold-down ring in locking nut.
Preferably, described spool top and valve body upper end are sealed by seal ring.
Preferably, described valve rod is socketed wing nut.
Preferably, vacuumize described in outside mouth and between valve port and be socketed two seal rings.
The beneficial effect of bellow type vacuum pumping device described in the utility model is: scientific structure design, rationally, easy to use, vacuumizes shutoff success rate high.
Valve port adopts double sealing circle to add the micro-deformation locking mechanism in soft metal, the phenomenon that can effectively avoid valve port to loosen, leak gas.Spool adopts bellows structure and vacuum flange sealing, replaces motive sealing, avoids spool to wear and tear, increase substantially overall sealability with static seal.
Increase substantially its reliability, improve the total quality of product; Increase substantially shutoff up-to-standard rate, one time shutoff up-to-standard rate can reach 100%.
Accompanying drawing explanation
Fig. 1 is the structural representation of the bellow type vacuum pumping device described in the utility model embodiment.
In figure: 1, vacuumize mouth; 2, locking nut; 3, hold-down ring; 4, valve port; 5, plug; 6, valve body; 7, KF40 vacuum flange; 8, wing nut; 9, valve rod; 10, spool; 11, seal ring.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the utility model is described in further detail.
As shown in Figure 1, bellow type vacuum pumping device described in the utility model embodiment, comprise and vacuumize mouth 1, valve body 6, KF40 vacuum flange 7, valve rod 9, spool 10, the valve port 4 of described valve body 6 lower end by double sealing circle sealing configuration with vacuumize mouth 1 and be connected, socket spool 10 in valve body 6, spool 10 top is connected to valve body 6 upper end by KF40 vacuum flange 7, described spool 10 lower end is connected with the plug 5 vacuumized in mouth 1, plug 5 in vacuum pumping mouth can be pulled open by spool 10, the interlayer of container is connected with vacuum pump set, thus vacuumizes; Socket valve rod 9 in described spool 10, spool 10 can be reduced by the lifting of valve rod 6 and elongation is shunk.
Described valve body 6 lower end interlocking locking nut 2, is provided with hold-down ring 3, compresses hold-down ring 3 by locking nut 2 in locking nut 2, thus and reaches valve body 6 and the sealing vacuumizing mouth 1.
Described spool 10 top and valve body 6 upper end are sealed by seal ring 11.
Described valve rod 9 is socketed wing nut 8, and wing nut 8 can be located spool 10.
Described vacuumizing outside mouth 1 and between valve port 4 is socketed two seal rings.
Above embodiment is only exemplary, and under above-mentioned instruction of the present utility model, those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improve or distortion drops in protection domain of the present utility model.It will be understood by those skilled in the art that specific descriptions are above to explain the purpose of this utility model, not for limiting the utility model.Protection domain of the present utility model is by claim and equivalents thereof.
Claims (5)
1. a bellow type vacuum pumping device, it is characterized in that: comprise and vacuumize mouth, valve body, valve rod, spool, the valve port of described valve body lower end by double sealing circle with vacuumize mouth and be connected, socket spool in valve body, spool top seal is connected to valve body upper end, and described spool lower end is connected with the plug vacuumized in mouth; Socket valve rod in described spool.
2. bellow type vacuum pumping device according to claim 1, is characterized in that: described valve body lower end interlocking locking nut, is provided with hold-down ring in locking nut.
3. bellow type vacuum pumping device according to claim 2, is characterized in that: described spool top and valve body upper end are sealed by seal ring.
4. bellow type vacuum pumping device according to claim 3, is characterized in that: described valve rod is socketed wing nut.
5. bellow type vacuum pumping device according to claim 4, is characterized in that: described in vacuumize outside mouth and between valve port and be socketed two seal rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420460596.9U CN204061360U (en) | 2014-08-15 | 2014-08-15 | A kind of bellow type vacuum pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420460596.9U CN204061360U (en) | 2014-08-15 | 2014-08-15 | A kind of bellow type vacuum pumping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204061360U true CN204061360U (en) | 2014-12-31 |
Family
ID=52202886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420460596.9U Expired - Fee Related CN204061360U (en) | 2014-08-15 | 2014-08-15 | A kind of bellow type vacuum pumping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204061360U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623181A (en) * | 2021-07-23 | 2021-11-09 | 张家港中集圣达因低温装备有限公司 | Vacuum pumping device |
| CN116066628A (en) * | 2023-03-31 | 2023-05-05 | 山东奥新医疗科技有限公司 | Vacuumizing device with dynamic sealing mechanism |
-
2014
- 2014-08-15 CN CN201420460596.9U patent/CN204061360U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623181A (en) * | 2021-07-23 | 2021-11-09 | 张家港中集圣达因低温装备有限公司 | Vacuum pumping device |
| CN113623181B (en) * | 2021-07-23 | 2023-07-21 | 张家港中集圣达因低温装备有限公司 | Vacuumizing device |
| CN116066628A (en) * | 2023-03-31 | 2023-05-05 | 山东奥新医疗科技有限公司 | Vacuumizing device with dynamic sealing mechanism |
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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: 20141231 Termination date: 20200815 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |