CN200975528Y - Silencing non-return valve - Google Patents
Silencing non-return valve Download PDFInfo
- Publication number
- CN200975528Y CN200975528Y CN 200620160429 CN200620160429U CN200975528Y CN 200975528 Y CN200975528 Y CN 200975528Y CN 200620160429 CN200620160429 CN 200620160429 CN 200620160429 U CN200620160429 U CN 200620160429U CN 200975528 Y CN200975528 Y CN 200975528Y
- Authority
- CN
- China
- Prior art keywords
- valve
- core plate
- flap
- valve body
- ring
- 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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- Check Valves (AREA)
Abstract
The utility model provides a noise eliminating check valve comprises a valve body, a valve clack, a valve rod, a valve core plate, a spring and a ring of valve cover. The valve clack is of tapered barrel shape, and two head surfaces of the valve clack are combined with the valve body and the valve core plate. A sealing ring is arranged on head surface of the valve clack, and the other surface of the valve body in inserted in the ring of valve cover. Both ends of valve rod are arranged between the ring of valve cover and one head surface of the valve body. The valve clacks and the valve core plate are arranged on the valve rod, and the spring is installed between the valve core plate and the ring of valve cover. The valve body is nearly elliptic ball shaped. In addition, the utility model which is characterized in novel structure, tight closeness, low fluid resistance, low noise, and convenient is suitable using in all pipes of stressful liquid for prevent momentary backflow.
Description
1, technical field
The utility model relates to a kind of safety check, specifically a kind of damping check valve that prevents aqueous reflux.
2, background technique
The damping check valve of prior art mainly is made up of valve body, following current cover, valve rod, spring and flap etc., and the following current cover is loaded in the valve body, has not only reduced area of passage, has increased resistance to water-flow, and has taken valve space, and valve volume is increased.
3, model utility content
In view of above-mentioned the deficiencies in the prior art, the utility model provides the damping check valve that a kind of novel structure, volume are little, can weaken resistance to water-flow and noise.
The technological scheme that its technical problem that solves the utility model adopts is: flap is made the taper tubbiness, the both ends of the surface of flap are touched with valve body and valve core plate respectively and are closed, seal ring is equipped with in the both ends of the surface of flap in the position of its contact, the another side of valve body and valve gap ring drive fit, the two ends of valve rod are loaded on the centre of valve collar lid and valve body one end face respectively, flap and valve core plate are housed on valve rod, between valve core plate and the valve gap ring spring are housed.Valve body is made the sub-elliptical ball, body cavity has formed the streamlined of nature like this, the stream erosion noise and the energy loss that have reduced unexpected expansion of current and sudden contraction and produced, taper valve very easily divides water guide stream in addition, and fluid is significantly reduced at the turbulent drag loss and the noise at flap place.After outage, after the active force elder generation promotion valve core plate of spring seals flap, promoting flap again seals valve body, because valve core plate is combined into flexible the contact with touching of flap, flap closes also with touching of valve body and contacts for flexible, the flexible contact of formed like this two-stage is converted into the work done of two stage compression buffering to the moment kinetic energy of the water hammer pressure that flows backwards, limited the refluence speed of current effectively, thereby reduce and subdued the water hammer pressure energy, increased the damping function that flap and valve core plate are closed, weaken moment the water hammer pressure vibration and the noise that cause, greatly reduced water hammer pressure.
The beneficial effects of the utility model are: adopted the flexible contact structures of two-stage, and the cone structure of the airflow design of valve inner and flap, can weaken resistance to water-flow and noise, energy saving greatly; Novel structure, volume is little, applicable to the various pipelines of preventing the pressure flow body of instantaneous refluences.
4, description of drawings
Accompanying drawing is the structural representation of damping check valve.
Among the figure, 1, valve body, 2, seal ring, 3, flap, 4, valve rod, 5, seal ring, 6, valve core plate, 7, spring, 8, the valve gap ring.
5, embodiment
Explain below with regard to accompanying drawing damping check valve of the present utility model being done below.
As shown in drawings, damping check valve of the present utility model is by valve body (1), flap (3), valve rod (4), valve core plate (6), spring (7) and valve gap ring (9) are formed, flap (3) is made the taper tubbiness, the both ends of the surface of flap (3) are touched with valve body (1) and valve core plate (6) respectively and are closed, the position of its contact is bonded with seal ring (2) on the both ends of the surface of flap (3), (5), the another side of valve body (1) and valve gap ring (8) drive fit, the two ends of valve rod (4) are loaded on the centre of valve collar lid (8) and valve body (1) one end face respectively, flap (3) and valve core plate (6) are housed on valve rod (4), between valve core plate (6) and the valve gap ring (8) spring (7) is housed, valve body (1) is made the sub-elliptical ball.The thrust of valve body (1) inner spring (7) makes valve core plate (6), flap (3) and valve body (1) three's close contact at ordinary times, guarantee that medium can not flow backwards, when the thrust of flowing medium during greater than 0.005MPa, fluid just can be pushed flap (3) and valve core plate (6) open by valve body (1); After outage, the active force of spring (7) promotes valve core plate (6) earlier with flap (3) sealing, and the back promotes flap (3) valve body (1) is sealed.
Claims (2)
1, a kind of damping check valve is made up of valve body, flap, valve rod, valve core plate, spring and valve gap ring, it is characterized in that: flap is made the taper tubbiness, the both ends of the surface of flap are touched with valve body and valve core plate respectively and are closed, seal ring is equipped with at the flap end face in the position of its contact, the another side of valve body and valve gap ring drive fit, the two ends of valve rod are loaded on the centre of valve collar lid and valve body one end face respectively, flap and valve core plate are housed on valve rod, between valve core plate and the valve gap ring spring is housed, valve body is made the sub-elliptical ball.
2, damping check valve according to claim 1 is characterized in that: seal ring is bonded on the both ends of the surface of flap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620160429 CN200975528Y (en) | 2006-11-23 | 2006-11-23 | Silencing non-return valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620160429 CN200975528Y (en) | 2006-11-23 | 2006-11-23 | Silencing non-return valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200975528Y true CN200975528Y (en) | 2007-11-14 |
Family
ID=38901813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620160429 Expired - Fee Related CN200975528Y (en) | 2006-11-23 | 2006-11-23 | Silencing non-return valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200975528Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134620A (en) * | 2015-09-01 | 2015-12-09 | 易先杰 | Turbofan dry vacuum pump |
| CN110822135A (en) * | 2019-11-20 | 2020-02-21 | 蚌埠中光电科技有限公司 | Novel check valve |
-
2006
- 2006-11-23 CN CN 200620160429 patent/CN200975528Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134620A (en) * | 2015-09-01 | 2015-12-09 | 易先杰 | Turbofan dry vacuum pump |
| CN105134620B (en) * | 2015-09-01 | 2017-11-10 | 易先杰 | Turbofan dry vacuum pump |
| CN110822135A (en) * | 2019-11-20 | 2020-02-21 | 蚌埠中光电科技有限公司 | Novel 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: 20071114 Termination date: 20091223 |