CN208010939U - Air inlet and exhaust valve novel seal valve seat - Google Patents
Air inlet and exhaust valve novel seal valve seat Download PDFInfo
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- CN208010939U CN208010939U CN201820284149.0U CN201820284149U CN208010939U CN 208010939 U CN208010939 U CN 208010939U CN 201820284149 U CN201820284149 U CN 201820284149U CN 208010939 U CN208010939 U CN 208010939U
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- layer
- rubber layer
- polytetrafluoroethylene ethylene
- air inlet
- valve seat
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Abstract
The utility model discloses a kind of air inlet and exhaust valve novel seal valve seats, including metallic framework, rubber layer and polytetrafluoroethylene ethylene layer, the metallic framework is arranged in a ring, the rubber layer envelopes the metallic framework completely, form a circle annular rubber layer, the polytetrafluoroethylene ethylene layer, which tilts upward, to be arranged on the madial wall of the annular rubber layer, the polytetrafluoroethylene ethylene layer is arranged in a ring, the madial wall of the polytetrafluoroethylene ethylene layer is exposed to outside, the rest part of the polytetrafluoroethylene ethylene layer is coated by the rubber layer, the rubber layer is respectively formed rubber linear sealing at the top and bottom of the polytetrafluoroethylene ethylene layer, the air inlet and exhaust valve novel seal valve seat can avoid low-pressure leak, ensure leakproofness, protect floating ball surface, floating ball is prevented to be absorbed in valve seat, prevent floating ball from generating bonding with valve seat.
Description
Technical field
The utility model is related to air inlet and exhaust valve technical field more particularly to a kind of air inlet and exhaust valve novel seal valve seats.
Background technology
When air inlet and exhaust valve performance requirement aqueduct air water-filling (including water-filling for the first time), this valve can be arranged largely, at high speed
Except the gas in pipe.With the air exhaust in pipe, floating ball rises with level, valve seal.Sealed pressure：Low pressure seal pressure
Power：20kPa；Sealed pressure：1.1 times of nominal pressures.Medium：Water.When pipeline emptying or booster, when there is negative pressure in pipe, i.e.,
When overpressure < 0, floating ball should be detached from valve seat.The a large amount of air-breathings of pipeline.Destroy vacuum, protective conduit.
There are the following problems for conventional air inlet and exhaust valve now：Leakage is easy when low pressure seal (20kPa)；Floating ball is close with valve seat
It is honored as a queen, floating ball damage；Floating ball is absorbed in valve seat, and when pipe negative pressure, floating ball is not fallen off, and can not destroy vacuum, protective conduit；Floating ball
Bonding is generated with valve seat, floating ball is not fallen off when negative pressure.
Utility model content
In order to solve the above technical problems, the purpose of this utility model, which is to provide one kind, can avoid low-pressure leak, ensure close
Feng Xing, the air inlet and exhaust valve novel seal valve seat on protection floating ball surface.
The utility model proposes a kind of air inlet and exhaust valve novel seal valve seat, including metallic framework, rubber layer and polytetrafluoro
Pvdf layer, the metallic framework are arranged in a ring, and the rubber layer envelopes the metallic framework completely, form a ring shape rubber
Glue-line, the polytetrafluoroethylene ethylene layer, which tilts upward, to be arranged on the madial wall of the annular rubber layer, the polytetrafluoroethylene ethylene layer
It is arranged in a ring, the madial wall of the polytetrafluoroethylene ethylene layer is exposed to outside, the rest part quilt of the polytetrafluoroethylene ethylene layer
The rubber layer cladding, the rubber layer are respectively formed rubber linear sealing at the top and bottom of the polytetrafluoroethylene ethylene layer.
Further, the madial wall of the madial wall of the polytetrafluoroethylene ethylene layer and the annular rubber layer with the annular
Angle >=45 degree of the center line of rubber layer.
Further, the top internal diameter of the rubber layer is 100mm.
Further, the bottom outer diameter of the rubber layer is 215mm.
Further, the top of the rubber layer to the difference in height between the top of the polytetrafluoroethylene ethylene layer be 3mm.
Further, the difference in height of the top-to-bottom of the rubber layer is 14mm.
According to the above aspect of the present invention, the utility model has at least the following advantages：
One, undertakes the low pressure seal (20kPa hydraulic pressure) of valve by rubber linear sealing；
Two, wedge angle >=90 °, it is ensured that floating ball will not be absorbed in valve seat, and floating ball can fall off by dead weight when negative pressure.
With the raising of pressure, floating ball compression rubber layer then contacts with polytetrafluoroethylene ethylene layer three, forming face contact.
Four, are close using the higher seal pressure (65-70MPa) allowable of polytetrafluoroethylene ethylene layer and its flexible deformation, forming face
Envelope.
The hardness of five, polytetrafluoroethylene ethylene layers is far below the hardness of floating ball, so the surface of energy effective protection floating ball.
The high temperature resistant of six, polytetrafluoroethylene (PTFE), it is ageing-resistant, contacted without bad reflection with water, and have self-lubricating property, so
It can solve the problems, such as that valve seat generates bonding with floating ball.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model air inlet and exhaust valve novel seal valve seat；
Fig. 2 is the structural schematic diagram that the utility model air inlet and exhaust valve novel seal valve seat is mounted in valve body；
Wherein：1- valve bodies；2- valve rods；3- floating balls；4- air inlet and exhaust valve novel seal valve seats；5- valve decks；6- protective covers；7- gold
Belong to skeleton；8- rubber layers；9- polytetrafluoroethylene ethylene layers；10- rubber covered wires.
Specific implementation mode
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Embodiment：As shown in Figure 1, a kind of air inlet and exhaust valve novel seal valve seat, including metallic framework, rubber layer and polytetrafluoro
Pvdf layer, the metallic framework are arranged in a ring, and the rubber layer envelopes the metallic framework completely, form a ring shape rubber
Glue-line, the polytetrafluoroethylene ethylene layer, which tilts upward, to be arranged on the madial wall of the annular rubber layer, the polytetrafluoroethylene ethylene layer
It is arranged in a ring, the madial wall of the polytetrafluoroethylene ethylene layer is exposed to outside, the rest part quilt of the polytetrafluoroethylene ethylene layer
The rubber layer cladding, the rubber layer are respectively formed rubber linear sealing at the top and bottom of the polytetrafluoroethylene ethylene layer.
The madial wall of the madial wall of the polytetrafluoroethylene ethylene layer and the annular rubber layer with the annular rubber layer
Angle >=45 degree of center line.
The top internal diameter of the rubber layer is 100mm.
The bottom outer diameter of the rubber layer is 215mm.
The top of the rubber layer to the difference in height between the top of the polytetrafluoroethylene ethylene layer be 3mm.
The difference in height of the top-to-bottom of the rubber layer is 14mm.
The specific location that this case air inlet and exhaust valve novel seal valve seat is mounted in valve body is as shown in Figure 2.
The above is only the preferred embodiment of the utility model, is not intended to limit the utility model, it is noted that
For those skilled in the art, without deviating from the technical principle of the utility model, it can also do
Go out several improvements and modifications, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (6)
1. a kind of air inlet and exhaust valve novel seal valve seat, it is characterised in that：Including metallic framework, rubber layer and polytetrafluoroethylene ethylene layer,
The metallic framework is arranged in a ring, and the rubber layer envelopes the metallic framework completely, forms a circle annular rubber layer, institute
It states polytetrafluoroethylene ethylene layer and tilts upward and be arranged on the madial wall of the annular rubber layer, the polytetrafluoroethylene ethylene layer is set in a ring
It sets, the madial wall of the polytetrafluoroethylene ethylene layer is exposed to outside, and the rest part of the polytetrafluoroethylene ethylene layer is by the rubber
Layer cladding, the rubber layer are respectively formed rubber linear sealing at the top and bottom of the polytetrafluoroethylene ethylene layer.
2. air inlet and exhaust valve novel seal valve seat according to claim 1, it is characterised in that：The polytetrafluoroethylene ethylene layer it is interior
Angle >=45 degree of the madial wall of side wall and the annular rubber layer with the center line of the annular rubber layer.
3. air inlet and exhaust valve novel seal valve seat according to claim 2, it is characterised in that：The top internal diameter of the rubber layer
For 100mm.
4. air inlet and exhaust valve novel seal valve seat according to claim 3, it is characterised in that：The bottom outer diameter of the rubber layer
For 215mm.
5. air inlet and exhaust valve novel seal valve seat according to claim 4, it is characterised in that：The top of the rubber layer is to institute
It is 3mm to state the difference in height between the top of polytetrafluoroethylene ethylene layer.
6. air inlet and exhaust valve novel seal valve seat according to claim 5, it is characterised in that：The top of the rubber layer is on earth
The difference in height in portion is 14mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820284149.0U CN208010939U (en) | 2018-02-28 | 2018-02-28 | Air inlet and exhaust valve novel seal valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820284149.0U CN208010939U (en) | 2018-02-28 | 2018-02-28 | Air inlet and exhaust valve novel seal valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208010939U true CN208010939U (en) | 2018-10-26 |
Family
ID=63886980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820284149.0U Active CN208010939U (en) | 2018-02-28 | 2018-02-28 | Air inlet and exhaust valve novel seal valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208010939U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723820A (en) * | 2019-01-22 | 2019-05-07 | 石家庄贝克密封科技股份有限公司 | A kind of skeleton rubber sealing ring and its production mould |
-
2018
- 2018-02-28 CN CN201820284149.0U patent/CN208010939U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723820A (en) * | 2019-01-22 | 2019-05-07 | 石家庄贝克密封科技股份有限公司 | A kind of skeleton rubber sealing ring and its production mould |
| CN109723820B (en) * | 2019-01-22 | 2024-03-29 | 石家庄贝克密封科技股份有限公司 | Skeleton rubber sealing ring and production die thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: New sealing valve seat for intake and exhaust valves Effective date of registration: 20230810 Granted publication date: 20181026 Pledgee: Bank of China Limited Taicang Branch Pledgor: VAG WATER SYSTEMS (TAICANG) Co.,Ltd. Registration number: Y2023980051539 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |