CN201162863Y - Large-caliber bidirectional-control check valve - Google Patents
Large-caliber bidirectional-control check valve Download PDFInfo
- Publication number
- CN201162863Y CN201162863Y CNU2008200790927U CN200820079092U CN201162863Y CN 201162863 Y CN201162863 Y CN 201162863Y CN U2008200790927 U CNU2008200790927 U CN U2008200790927U CN 200820079092 U CN200820079092 U CN 200820079092U CN 201162863 Y CN201162863 Y CN 201162863Y
- Authority
- CN
- China
- Prior art keywords
- valve
- key
- bearing pin
- safety check
- flap
- 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
The utility model provides a bilateral control check valve with a large diameter, which is formed in the way that a valve seat is fixed on a valve body, and a pin shaft transversely passes through the valve body; wherein, the pin shaft is connected with a rocker arm A key, the rocker arm A is fixed with a valve clack, and the valve clack is sealed with the plane of the valve seat. By connecting a key axis with a cylinder and the valve clack, the starting of the bilateral control check valve provided by the utility model can be controlled by manual or pneumatic bilateral control, thus achieving the effect of buffering starting, reducing the friction of a sealing surface between the valve clack and the valve seat, and prolonging the service life of a valve.
Description
Technical field
The utility model relates to a kind of safety check, the two-way control safety check of particularly a kind of heavy caliber.
Background technique
Safety check in the market is generally the turning-body type safety check, this safety check is because structure is a turning-body type, generally occur the big phenomenon of flow resistance in use, and flow resistance causes that greatly not only big noise also makes valve itself in use cause the sealing surface of flap to destroy easily, influences its working life.
The model utility content
The utility model provides a kind of two-way control safety check of heavy caliber of energy bidirectional buffering.
In order to solve above technical problem, the two-way control safety check of a kind of heavy caliber of the present utility model by fixed valve base on the valve body, crosses bearing pin and forms on valve body; Described bearing pin is connected with rocking arm A key, and rocking arm A and flap are fixed, and flap and valve seat planes sealing.
Key is established at the two ends of described bearing pin, and wherein an end is a spline; Described bearing pin is that an end of spline is connected with rocking arm B key, and the bearing pin the other end is connected with the cylinder key.
The bore of described safety check is 20-36 ".
The advantage of above structure is: this structure is connected with cylinder, flap by the key axle, makes startup reach the effect of buffer starting by manual and pneumatic two-way control, has reduced the sealing surface friction between flap and the valve seat, prolongs the working life of valve.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a side view of the present utility model.
Embodiment
As shown in Figure 1, 2, the below fixed valve base 2 of valve body 1, bearing pin 3 is crossed in valve body 1 top.Key 4,5 is established at the two ends of bearing pin 3, and intermediate portion is connected with rocking arm A key 6, and rocking arm A key 6 and flap 7 are fixedly connected on the top of valve seat 2, forms plane sealings with valve seat 2; The key 4,5 that above-mentioned bearing pin 3 two ends are set, wherein key 4 is connected with cylinder, and key 5 is a spline, realizes that with rocking arm B key 8 key is connected, and join the switching moment of balancing weight 9 with minimizing flap 7 on the rocking arm B key 8, and rocking arm B key 8 also serves as the manual rocking handle that flap 7 is opened.During operation, cylinder drives bearing pin 3 and rotates, rotating band by bearing pin 3 shakes arm A key 6, because rocking arm A key 6 is fixedlyed connected with flap 7, so just realized by cylinder and manual bidirectional buffer starting flap 7, reduce sealing surface friction between flap 7 and the valve seat 2 by buffer starting, prolonged its working life.
Claims (3)
1, the two-way control safety check of a kind of heavy caliber by fixed valve base on the valve body, crosses bearing pin and forms on valve body, it is characterized in that: described bearing pin is connected with rocking arm A key, and rocking arm A is fixedlyed connected with flap, and flap and valve seat planes sealing.
2, the two-way control safety check of a kind of heavy caliber according to claim 1, it is characterized in that: key is established at the two ends of described bearing pin, and wherein an end is a spline; Described bearing pin is that an end of spline is connected with rocking arm B key, and the other end is connected with the cylinder key.
3, the two-way control safety check of a kind of heavy caliber according to claim 2, it is characterized in that: the bore of described safety check is 20-36 ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200790927U CN201162863Y (en) | 2008-03-04 | 2008-03-04 | Large-caliber bidirectional-control check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200790927U CN201162863Y (en) | 2008-03-04 | 2008-03-04 | Large-caliber bidirectional-control check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201162863Y true CN201162863Y (en) | 2008-12-10 |
Family
ID=40183800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200790927U Expired - Fee Related CN201162863Y (en) | 2008-03-04 | 2008-03-04 | Large-caliber bidirectional-control check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201162863Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588634A (en) * | 2012-03-08 | 2012-07-18 | 青岛高压阀门有限公司 | Flange swing check valve |
| CN104089055A (en) * | 2014-07-02 | 2014-10-08 | 南通国电电站阀门有限公司 | Supercritical large-caliber two-direction buffer control type check valve |
-
2008
- 2008-03-04 CN CNU2008200790927U patent/CN201162863Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588634A (en) * | 2012-03-08 | 2012-07-18 | 青岛高压阀门有限公司 | Flange swing check valve |
| CN104089055A (en) * | 2014-07-02 | 2014-10-08 | 南通国电电站阀门有限公司 | Supercritical large-caliber two-direction buffer control type check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081210 Termination date: 20110304 |