CN202852087U - Silent type check valve - Google Patents
Silent type check valve Download PDFInfo
- Publication number
- CN202852087U CN202852087U CN 201220573382 CN201220573382U CN202852087U CN 202852087 U CN202852087 U CN 202852087U CN 201220573382 CN201220573382 CN 201220573382 CN 201220573382 U CN201220573382 U CN 201220573382U CN 202852087 U CN202852087 U CN 202852087U
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- China
- Prior art keywords
- valve
- valve body
- flap
- fixed
- rod
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to the technical field of pipeline valves, in particular to a silent type check valve. The silent type check valve comprises a valve body, a valve rod, a valve clack, a valve seat and a diversion body. Flanges are arranged at two ends of the valve body, a fixed table seat is arranged at a water inlet end of the valve body, the valve seat is fixed in the groove of the valve body, the valve rod is fixed on the fixed table seat in the valve body, the through hole in the center of the valve clack penetrates through the valve rod and is closely matched with the valve rod, and the diversion body is connected and fixed inside the valve body through threads. The valve clack and the valve rod are designed of a split structure, and the silent type check valve has the advantages of being light in opening torque, and good in sealing performance, and prolonging the service life of the valve seat.
Description
Technical field
The utility model relates to the pipeline valve technical field, particularly a kind of Silent check valve.
Background technique
Silent check valve is a kind of in many pipeline valves, is to rely on medium itself to flow and automatic open and close flap, is used for preventing the valve that medium flows backwards, and prevents that pump and drive motor from reversing, and the releasing of vessel media.Existing Silent check valve sealing configuration form is usually rubber-coated in the flap appearance, makes rubber and sealing surface on the valve body contact and compress the formation sealing effect under the pressure of medium.But, easily cause compression ratio too high because rubber layer thickness is thinner using, reduced the working life of rubber, the rubber seal face that easily damages causes valve leak.Therefore, for the existing defective of existing Silent check valve and deficiency, design a kind of low cost, favorable sealing property, working life is long and open the less Silent check valve of moment and extremely be necessary.
The model utility content
The purpose of this utility model is for the deficiencies in the prior art, provide a kind of simple in structure, fabricating cost is low, the Silent check valve that usability is good.
For achieving the above object, the utility model by the following technical solutions.
A kind of Silent check valve described in the utility model, it comprises valve body, valve rod, flap, valve seat and deflector, the two ends of described valve body are provided with flange, its inlet end is provided with fixed base, described valve seat is located in the groove of valve body and by the valve seat trim ring and is fixed in the valve body, described valve rod is arranged in the interior fixed base of valve body and is fixed in the valve body by hexagon nut, the intermediate throughholes of described flap is passed valve rod and is cooperated with valve stem seal, the flap bottom plane contacts with valve seat, described deflector is threaded connection and is fixed in the valve body, and its inner chamber intermediate throughholes and valve rod external diameter form and closely cooperate.
Further, described valve seat is to make moulding by rubber material, and its structure shape is rendered as the T shape.
Further, the contact plane of described flap and valve seat is provided with three road sealing lines, is provided with spring between flap and the deflector.
Further, described valve rod is provided with O shape circle, and O shape circle forms with the flap intermediate throughholes and is sealed and matched.
After adopting said structure, the utility model beneficial effect is: valve seat of the present utility model is located in the valve body recess, its end face contacts with the flap bottom plane and the pressure initiation sealing effect by medium, this project organization can strengthen the sealability of valve and effectively solve the problem of valve seat overcompression, has prolonged the working life of valve seat; In addition, the valve rod of valve and flap adopt the split-type structural design, and medium only need promote flap and get final product Open valve during valve opening, and unlatching moment is lighter.
Description of drawings
Fig. 1 is the utility model situation cross-sectional view.
Fig. 2 is the flap cross-sectional view.
Fig. 3 is I place structure for amplifying schematic diagram among Fig. 2.
Among the figure:
1. valve body 2. hexagon nuts 3. spring washers 4. valve seats
5. valve seat trim ring 6. flap 7.O shapes are enclosed 8. springs
9. valve rod 10. deflectors 11. flap sealing lines
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1 to Figure 3, a kind of Silent check valve described in the utility model, it comprises valve body 1, valve seat 4, valve rod 9, flap 6 and deflector 10, above-mentioned several parts consist of the utility model agent structure.
The place, two ends of described valve body 1 is provided with flange, be provided with fixed base and connect as one in valve body 1 by stiffening rib at the water inlet end, described valve seat 4 adopts rubber material to make moulding, its structure shape is rendered as the T shape, valve seat 4 is fixed in the groove of valve body 1 by valve seat trim ring 5, the fixed base that described valve rod 9 passes in the valve body 1 is fixed in the valve body 1 by use hexagon nut 2 and spring washer 3, the lower end of valve rod 9 is provided with O shape circle 7, O shape circle 7 is sealed and matched with the middle endoporus formation of flap 6, described flap 6 passes valve rod 9 and contacts with valve seat 4 end faces, its bottom plane is provided with the sealability that sealing line 11 can strengthen valve, platform at flap 6 is provided with spring 8, described spring 8 passes on the platform that valve rod 9 is placed in flap 6, spring 8 compresses by deflector 10 and produces pretightening force, described deflector 10 passes valve rod 9 and closely cooperates with valve rod 9 external diameters, deflector 10 is threaded connection with valve body 1 and is fixed as one, valve relies on the pressure of medium to realize the switching motion of valve, when medium flows into from the water inlet port of valve body 1, medium promotes flap 6 moves its axial position along valve rod 9, this moment valve opening, when medium refluxes from the water outlet end of valve, thereby the pressure-acting of medium makes flap 6 and valve seat 4 close contacts form sealing effect at flap 6 together, makes valve be in closed condition.
The above only is better embodiment of the present utility model, therefore all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (5)
1. Silent check valve, it comprises valve body (1), valve rod (9), flap (6), valve seat (4) and deflector (10), it is characterized in that: the two ends of described valve body (1) are provided with flange, its inlet end is provided with fixed base, described valve seat (4) is located in the groove of valve body (1) and is fixed in the valve body (1) by valve seat trim ring (5), described valve rod (9) is arranged in the fixed base in the valve body (1) and is fixed in the valve body (1) by hexagon nut (2), the intermediate throughholes of described flap (6) is passed valve rod (9) and is sealed and matched with valve rod (9), flap (6) bottom plane contacts with valve seat (4), described deflector (10) is threaded connection and is fixed in the valve body (1), and its inner chamber intermediate throughholes and valve rod (9) external diameter form and closely cooperate.
2. Silent check valve according to claim 1, it is characterized in that: the water inlet port of described valve body (1) is provided with fixed base and connects as one by stiffening rib and valve body (1).
3. Silent check valve according to claim 1, it is characterized in that: the structure shape of described valve seat (4) is the T shape, and is fixed in the valve body (1) by valve seat trim ring (5).
4. Silent check valve according to claim 1 is characterized in that: described flap (6) adopts split-type structural with valve rod (9), and place, flap (6) bottom plane is provided with sealing line (11).
5. described Silent check valve according to claim 1-5 is characterized in that: described valve rod (9) is provided with O shape circle (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220573382 CN202852087U (en) | 2012-11-02 | 2012-11-02 | Silent type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220573382 CN202852087U (en) | 2012-11-02 | 2012-11-02 | Silent type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202852087U true CN202852087U (en) | 2013-04-03 |
Family
ID=47983292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220573382 Expired - Fee Related CN202852087U (en) | 2012-11-02 | 2012-11-02 | Silent type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202852087U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727273A (en) * | 2014-01-17 | 2014-04-16 | 江苏苏盐阀门机械有限公司 | Heavy-caliber axial flow type check valve |
| CN106195363A (en) * | 2016-08-31 | 2016-12-07 | 浙江新旭阀业有限公司 | A kind of band quiet soft-sealing check valve of exhaust apparatus formula |
| CN107448617A (en) * | 2017-09-11 | 2017-12-08 | 广东溢达纺织有限公司 | Automation valve mechanism for eluting water integration apparatus |
-
2012
- 2012-11-02 CN CN 201220573382 patent/CN202852087U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727273A (en) * | 2014-01-17 | 2014-04-16 | 江苏苏盐阀门机械有限公司 | Heavy-caliber axial flow type check valve |
| CN106195363A (en) * | 2016-08-31 | 2016-12-07 | 浙江新旭阀业有限公司 | A kind of band quiet soft-sealing check valve of exhaust apparatus formula |
| CN107448617A (en) * | 2017-09-11 | 2017-12-08 | 广东溢达纺织有限公司 | Automation valve mechanism for eluting water integration apparatus |
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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: 20130403 Termination date: 20141102 |
|
| EXPY | Termination of patent right or utility model |