CN203322396U - Valve clack installation structure for cryogenic check valve - Google Patents
Valve clack installation structure for cryogenic check valve Download PDFInfo
- Publication number
- CN203322396U CN203322396U CN2013202976584U CN201320297658U CN203322396U CN 203322396 U CN203322396 U CN 203322396U CN 2013202976584 U CN2013202976584 U CN 2013202976584U CN 201320297658 U CN201320297658 U CN 201320297658U CN 203322396 U CN203322396 U CN 203322396U
- Authority
- CN
- China
- Prior art keywords
- valve clack
- flap
- shaft
- rocker
- valve
- 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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Abstract
A valve clack installation structure for a cryogenic check valve comprises a valve clack. A valve clack installation shaft is arranged on the valve clack, a section, close to the valve clack, of the valve clack installation shaft is a spherical shaft, a section, far away from the valve clack, of the valve clack shaft is a column shaft with threads, and the valve clack is hinged to a rocker through the installation shaft. The rocker is of a split structure and comprises a rocker arm and a rocker cover, wherein the rocker arm and the rocker cover are fixedly connected through a fastener, and a spherical hole is formed in the match face between the rocker arm and the rocker cover. The valve clack installation shaft penetrates through the spherical hole, the column shaft, with the threads, of the valve clack installation shaft is hinged to the valve clack and the rocker through a nut matched with the column shaft, and the spherical shaft of the valve clack installation shaft is in clearance fit with the spherical hole. The valve clack installation structure has the advantages that the valve clack and the rocker are in spherical face connection to achieve the effect of automatically adjusting sealing, the corrosion is small after the valve clack installation structure is used for a long time, the valve clack installation structure is not prone to shocking, the sealing performance of the cryogenic check valve is guaranteed, and the safety of the cryogenic check valve is improved.
Description
Affiliated technical field
The utility model relates to a kind of deep cooling safety check, particularly a kind of flap mounting structure of deep cooling safety check.
Background technique
In existing deep cooling safety check, flap and rocking bar adopt the Connecting format of sphere and cylinder usually, this form reaches the effect of automatic adjustment sealing in the time of can making valve closing, but after long-term the use, wear and tear larger, cause rocking quantitative change large, thereby very easily cause flap with rocking bar connection part fracture, have a strong impact on the performance of valve.
Summary of the invention
For overcoming the above-mentioned defect of existing safety check, the utility model provides a kind of safety check, and it adopts be connected with the sphere flap mounting structure of form of sphere, effectively raises the Safety performance of valve.
The technological scheme that the utility model solves its technical problem employing is a kind of flap mounting structure of deep cooling safety check, comprise flap, flap is provided with the flap installation shaft, one section of the nearly flap of flap installation shaft is spherical axle, one section away from flap is screwed columnar shaft, flap is hinged by installation shaft and rocking bar, described rocking bar is split-type structural, comprise rocker arm and rocker cover, rocker arm is fixedly connected with by fastening piece with rocker cover, have spherical pore between its fitting surface, the flap installation shaft is through spherical pore, on the flap installation shaft, one section of screwed columnar shaft is hinged by flap and rocking bar by the nut be mated, one section, spherical axle on the flap installation shaft and spherical pore Spielpassung.
The beneficial effects of the utility model are that flap adopts sphere to be connected with sphere with rocking bar, not only can reach the effect of automatic tune sealing, and after long-term the use, wearing and tearing are less, and difficult generation is rocked, and has guaranteed the sealing of valve, has improved the Security 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.
In Fig. 1,2: 1. rocker arm; 2. flap; 3. spherical axle; 4. columnar shaft; 5. rocker cover.
Embodiment
As Fig. 1, shown in 2, a kind of flap mounting structure of deep cooling safety check, comprise flap 2, flap 2 is provided with the flap installation shaft, one section of the nearly flap of flap installation shaft is spherical axle 3, one section away from flap is screwed columnar shaft 4, flap 2 is hinged by installation shaft and rocking bar, described rocking bar is split-type structural, comprise rocker arm 1 and rocker cover 5, rocker arm 1 is fixedly connected with by fastening piece with rocker cover 5, have spherical pore between its fitting surface, the flap installation shaft is through spherical pore, on the flap installation shaft, 4 one sections of screwed columnar shaft are hinged by flap 2 and rocking bar by the nut be mated, 3 one sections, spherical axle on the flap installation shaft and spherical pore Spielpassung.
Claims (1)
1. the flap mounting structure of a deep cooling safety check, comprise flap, flap is provided with the flap installation shaft, one section of the nearly flap of flap installation shaft is spherical axle, one section away from flap is screwed columnar shaft, flap is hinged by installation shaft and rocking bar, it is characterized in that: described rocking bar is split-type structural, comprise rocker arm and rocker cover, described rocker arm is fixedly connected with by fastening piece with rocker cover, have spherical pore between its fitting surface, described flap installation shaft is through spherical pore, on the flap installation shaft, one section of screwed columnar shaft is hinged by flap and rocking bar by the nut be mated, one section, spherical axle on the flap installation shaft and spherical pore Spielpassung.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202976584U CN203322396U (en) | 2013-05-28 | 2013-05-28 | Valve clack installation structure for cryogenic check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202976584U CN203322396U (en) | 2013-05-28 | 2013-05-28 | Valve clack installation structure for cryogenic check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203322396U true CN203322396U (en) | 2013-12-04 |
Family
ID=49661748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202976584U Expired - Fee Related CN203322396U (en) | 2013-05-28 | 2013-05-28 | Valve clack installation structure for cryogenic check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203322396U (en) |
-
2013
- 2013-05-28 CN CN2013202976584U patent/CN203322396U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 |