CN200975527Y - Clamped silencing check valve - Google Patents
Clamped silencing check valve Download PDFInfo
- Publication number
- CN200975527Y CN200975527Y CN 200620160425 CN200620160425U CN200975527Y CN 200975527 Y CN200975527 Y CN 200975527Y CN 200620160425 CN200620160425 CN 200620160425 CN 200620160425 U CN200620160425 U CN 200620160425U CN 200975527 Y CN200975527 Y CN 200975527Y
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- CN
- China
- Prior art keywords
- valve
- flap
- core plate
- 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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- Details Of Valves (AREA)
- Check Valves (AREA)
Abstract
The utility model provides a clamp type noise eliminating check valve which comprises a valve body, a valve clack, a valve rod, a valve core plate, a spring and a ring of valve cover. One end of the valve body is provided with a bowl shape underport, and the other end matches the ring of valve cover. Both ends of the valve rod are respectively arranged between the ring of valve cover and the bowl shape underport of the valve body. The valve rod is provided with the valve clack and the valve core plate. The valve clack is tapered. The spring is arranged between the valve core plate and the ring of valve cover. 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 wafer type damping check valve that prevents aqueous reflux.
2, background technique
The Wafer Check Valves of prior art is established a pair of flap perpendicular to water (flow) direction in valve body, the overflow section that has not only reduced current is long-pending, and flap is slab construction, can produce bigger turbulent flow, eddy current when current begin to rush at flap, and resistance to water-flow and noise are all increased greatly; Simultaneously, flap is quick closedown when closed, and particularly when the moment termination of pumping, it is big that flap touches the water hammer impact noise that closes valve body.
3, model utility content
In view of above-mentioned the deficiencies in the prior art, the utility model provides a kind of and reduces resistance to water-flow and noise, and the wafer type damping check valve of novel structure.
The technological scheme that its technical problem that solves the utility model adopts is: the wafer type damping check valve is by valve body, flap, valve rod, valve core plate, spring and valve gap ring are formed, valve body one end is made bowl-shape bottom outlet, the other end and valve gap ring drive fit, the two ends of valve rod are loaded on the centre of valve collar lid and the bowl-shape bottom outlet of valve body respectively, flap and valve core plate are housed on valve rod, flap is made cone-shaped, its big opening end face cooperates with the interior edge face of the bowl-shape bottom outlet of valve body, and touch and close by being contained in seal ring on the valve body and valve body flexibility, the osculum end face of flap and valve core plate preparation, its contact position is equipped with sealing gasket on flap, between valve core plate and the valve gap ring spring is housed, the thrust of spring makes valve core plate at ordinary times, flap and valve body three close contact, guarantee that medium can not flow backwards, when the thrust of flowing medium during greater than 0.005MPa, fluid just can push flap open and valve core plate passes through valve body.When be connected use with pipeline, when if the pressure flow body in the pipe flows back to valve body because of certain reason is instantaneous, after its active force elder generation promotion valve core plate 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, thereby reduce and subdued the water hammer pressure energy, increase the damping function of closure of check ring, weakened moment the water hammer pressure vibration and the noise that cause.
Because wafer type damping check valve of the present utility model has adopted the flexible contact structures of two-stage, can subdue instantaneous water hammer pressure effectively when closing valve, has reduced the closed noise and the vibration of flap; Flap is made cone-shaped again, and very easily the split flow body makes fluid significantly reduce at the turbulent drag loss and the noise at flap place.Therefore, the utility model is than the Wafer Check Valves novel structure of prior art, and closed tight, fluid resistance is little, noise is low, and is easy to use, is applicable to the pipeline of the pressure flow body of various anti-instantaneous refluences.
4, description of drawings
Accompanying drawing is the structural representation of wafer type damping check valve.
Among the figure, 1, valve body, 2, seal ring, 3, flap, 4, valve rod, 5, sealing gasket, 6, valve core plate, 7, spring, 8, taper pin, 9, the valve gap ring.
5, embodiment
Explain below with regard to accompanying drawing wafer type damping check valve of the present utility model being done below.
As shown in drawings, wafer type 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, valve body (1) one end is made bowl-shape bottom outlet, the other end and valve gap ring (9) drive fit, and it is fixing with taper pin (8), the two ends of valve rod (4) are loaded on the centre of valve collar lid (9) and the bowl-shape bottom outlet of valve body (1) respectively, flap (3) and valve core plate (6) are housed on valve rod (4), flap (3) is made cone-shaped, its big opening end face and valve body (1) touch the closure of closing the bowl-shape bottom outlet of realization valve body (1) by seal ring (2) flexibility or open, the osculum end face of flap and valve core plate (6) touch the closure of closing realization flap (3) axle center hole by sealing gasket (5) or open, and between valve core plate (6) and the valve gap ring (9) spring (7) are housed.
Claims (2)
1, a kind of wafer type 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: valve body one end is made bowl-shape bottom outlet, the other end and valve gap ring drive fit, the two ends of valve rod are loaded on the centre of valve collar lid and the bowl-shape bottom outlet of valve body respectively, flap and valve core plate are housed on valve rod, flap is made cone-shaped, its big opening end face cooperates with the interior edge face of the bowl-shape bottom outlet of valve body, the osculum end face of flap and valve core plate preparation are equipped with spring between valve core plate and the valve gap ring.
2, wafer type damping check valve according to claim 1, it is characterized in that: seal ring is equipped with at the position that the interior edge face of the bowl-shape bottom outlet of valve body contacts with flap, and sealing gasket is equipped with at the position that flap contacts with valve core plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620160425 CN200975527Y (en) | 2006-11-23 | 2006-11-23 | Clamped silencing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620160425 CN200975527Y (en) | 2006-11-23 | 2006-11-23 | Clamped silencing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200975527Y true CN200975527Y (en) | 2007-11-14 |
Family
ID=38901812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620160425 Expired - Fee Related CN200975527Y (en) | 2006-11-23 | 2006-11-23 | Clamped silencing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200975527Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111312202A (en) * | 2018-12-11 | 2020-06-19 | 上海汽车集团股份有限公司 | Silencing equipment |
| CN111365911A (en) * | 2020-03-23 | 2020-07-03 | 浙江农林大学暨阳学院 | Expansion valve and automobile air conditioning system |
-
2006
- 2006-11-23 CN CN 200620160425 patent/CN200975527Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111312202A (en) * | 2018-12-11 | 2020-06-19 | 上海汽车集团股份有限公司 | Silencing equipment |
| CN111312202B (en) * | 2018-12-11 | 2024-03-08 | 上海汽车集团股份有限公司 | Sound-deadening equipment |
| CN111365911A (en) * | 2020-03-23 | 2020-07-03 | 浙江农林大学暨阳学院 | Expansion valve and automobile air conditioning system |
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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 |