CN203322397U - Cryogenic check valve - Google Patents
Cryogenic check valve Download PDFInfo
- Publication number
- CN203322397U CN203322397U CN2013202977500U CN201320297750U CN203322397U CN 203322397 U CN203322397 U CN 203322397U CN 2013202977500 U CN2013202977500 U CN 2013202977500U CN 201320297750 U CN201320297750 U CN 201320297750U CN 203322397 U CN203322397 U CN 203322397U
- Authority
- CN
- China
- Prior art keywords
- boss
- rocker
- rocking bar
- shaft
- axle sleeve
- 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.)
- Expired - Fee Related
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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model provides a cryogenic check valve which comprises a valve body and a boss. The boss is arranged in the valve body and integrated with the valve body, a rocker shaft where a rocker is hinged is fixedly installed on the boss, a shaft sleeve is arranged between the rocker and the rocker shaft, the shaft sleeve is fixedly arranged on the inner circle of the rocker, through holes are formed in the two exposed flat ends of the rocker shaft, fasteners penetrate through the through holes to enable the rocker shaft to be fixedly connected with the boss, the two ends of the shaft sleeve and the two ends of the rocker abut against the boss to be limited axially. The cryogenic check valve has the advantages that the two ends of the shaft sleeve and the two ends of the rocker abut against the boss to be limited axially, the rocker is effectively prevented from moving axially, and the sealing performance is guaranteed.
Description
Affiliated technical field
The utility model relates to a kind of safety check, the safety check particularly used under a kind of deep cooling operating mode.
Background technique
In current existing safety check in order to guarantee the sealing of valve, usually abandoned the structure of utilizing support that rocker shaft is installed, the substitute is directly rocker shaft and mountion plate are fixed, component are few, simple in structure, and can well guarantee the sealing of valve.But the safety check of this structure does not adopt the structure of rocking bar end face and boss axial limiting, the rocking bar axial float affects the sealability of valve.
Summary of the invention
For overcoming the above-mentioned defect of existing safety check, the safety check that the utility model provides a kind of rocking bar place can carry out axial limiting, guaranteed the sealability of valve.
The technological scheme that the utility model solves its technical problem employing is a kind of deep cooling safety check, comprise that valve body, valve inner are provided with the boss processed with its integral body, the rocker shaft of articulated rocking bar is fixedly mounted on boss, be provided with axle sleeve between rocking bar and rocker shaft, axle sleeve is fixedly mounted on the rocking bar inner ring, and the flat termination that two of rocker shafts expose is provided with through hole, and fastening piece is fixedly connected with it through through hole with boss, the two ends of axle sleeve and rocking bar and boss butt, carry out axial limiting.
The beneficial effects of the utility model are two ends and boss butts of axle sleeve and rocking bar, carry out axial limiting, have effectively prevented the axial float of rocking bar, have guaranteed the sealability of valve.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is embodiment's structural representation;
Fig. 2 is the A-A sectional view shown in Fig. 1;
Fig. 3 is the local amplification view of the B-B shown in Fig. 2.
In Fig. 1,2,3: 1. valve body; 2. boss; 3. rocker shaft; 4. rocking bar; 5. axle sleeve.
Embodiment
As shown in Figure 1, 2, 3, a kind of deep cooling safety check, comprise that valve body 1, valve body 1 inside are provided with the boss 2 processed with its integral body, the rocker shaft 3 of articulated rocking bar 4 is fixedly mounted on boss 2, between rocking bar 4 and rocker shaft 3, is provided with axle sleeve 5, and axle sleeve 5 is fixedly mounted on rocking bar 4 inner rings, the flat termination that 3 two of rocker shafts expose is provided with through hole, fastening piece is fixedly connected with it through through hole with boss 2, the two ends of axle sleeve 5 and rocking bar 4 and boss 2 butts, carry out axial limiting.
Claims (1)
1. a deep cooling safety check, comprise that valve body, valve inner are provided with the boss processed with its integral body, the rocker shaft of articulated rocking bar is fixedly mounted on boss, be provided with axle sleeve between described rocking bar and rocker shaft, described axle sleeve is fixedly mounted on the rocking bar inner ring, and the flat termination that two of described rocker shafts expose is provided with through hole, and fastening piece is fixedly connected with it through through hole with boss, it is characterized in that: the two ends of described axle sleeve and rocking bar and boss butt, carry out axial limiting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202977500U CN203322397U (en) | 2013-05-28 | 2013-05-28 | Cryogenic check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202977500U CN203322397U (en) | 2013-05-28 | 2013-05-28 | Cryogenic check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203322397U true CN203322397U (en) | 2013-12-04 |
Family
ID=49661749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202977500U Expired - Fee Related CN203322397U (en) | 2013-05-28 | 2013-05-28 | Cryogenic check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203322397U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762833A (en) * | 2016-12-30 | 2017-05-31 | 四川三台力达泵业有限公司 | A kind of many structure pumps |
-
2013
- 2013-05-28 CN CN2013202977500U patent/CN203322397U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762833A (en) * | 2016-12-30 | 2017-05-31 | 四川三台力达泵业有限公司 | A kind of many structure pumps |
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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: 20131204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |