CN206592637U - Angled seat valve - Google Patents
Angled seat valve Download PDFInfo
- Publication number
- CN206592637U CN206592637U CN201720228003.XU CN201720228003U CN206592637U CN 206592637 U CN206592637 U CN 206592637U CN 201720228003 U CN201720228003 U CN 201720228003U CN 206592637 U CN206592637 U CN 206592637U
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- Prior art keywords
- sealing ring
- valve
- sealing
- valve rod
- angled seat
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Abstract
The utility model provides a kind of angled seat valve, and it includes a valve rod, a valve pocket and seal assembly, and valve pocket is movably set in outside valve rod, and a gap is provided between valve pocket and valve rod, and seal assembly is in gap, and seal assembly includes：First sealing ring, the first sealing ring is used for the sealing to gap when valve rod opposing valve sleeves are moved downward；Second sealing ring, axial direction of second sealing ring along valve rod and the first sealing ring interval are simultaneously oppositely arranged, and the second sealing ring is used for sealing when valve rod opposing valve sleeves are moved upwards to gap；3rd sealing ring, the 3rd sealing ring is located between the first sealing ring and the second sealing ring, and the first sealing ring is arranged in the upper surface of the 3rd sealing ring, and the second sealing ring is arranged in the lower surface of the 3rd sealing ring.The utility model makes seal assembly regardless of under conditions of malleation or negative pressure operating mode, seal assembly can play well sealedly effect by setting the first sealing ring, the second sealing ring and the 3rd sealing ring.
Description
Technical field
The utility model is related to a kind of angled seat valve.
Background technology
In the prior art, angled seat valve realizes the folding of valve by valve rod with piston motion in the axial direction.Valve
The seal assembly of bar both sides can effectively prevent the liquid leakage of lower end, it is ensured that actuator normal operation, therefore seal assembly is set
Meter is particularly important.
Seal assembly in current angled seat valves most of on the market is under conditions of malleation operating mode, and seal assembly is served
Sealedly effect.But under conditions of negative pressure operating mode, the sealing function of seal assembly, which weakens, even to fail, and makes seal assembly lower end
Liquid be easily leaked to upper end, cause angled seat valve damage.
Utility model content
The technical problems to be solved in the utility model is the sealing in order to overcome in the prior art under conditions of negative pressure operating mode
There is provided a kind of angled seat valve for sealing function the decrease even defect of failure of component.
The utility model is to solve above-mentioned technical problem by following technical proposals：
A kind of angled seat valve, it includes a valve rod, a valve pocket and seal assembly, and the valve pocket is movably set in the valve
A gap is provided with outside bar, and between the valve pocket and the valve rod, the seal assembly is in the gap, and its feature exists
In the seal assembly includes：
First sealing ring, to the gap when first sealing ring is moved downward for the relatively described valve pocket of the valve rod
Sealing；
Second sealing ring, axial direction of second sealing ring along the valve rod is with the first sealing ring interval and sets relatively
Put, and second sealing ring is used for sealing when the relatively described valve pocket of the valve rod is moved upwards to the gap；
3rd sealing ring, the 3rd sealing ring is located between first sealing ring and second sealing ring, described
3rd sealing ring has the upper and lower surface that is oppositely arranged, and first sealing ring is arranged in the upper surface, and described the
Two sealing rings are arranged in the lower surface；
Wherein, the material of first sealing ring, the second sealing ring and the 3rd sealing ring is elastomeric material, and described first
Sealing ring, the 3rd sealing ring and the second sealing ring are movably set in the periphery of the valve rod in the valve pocket.
It is preferred that first sealing ring includes along the axially opposing setting of the valve rod with second sealing ring
First surface and second surface, first sealing ring are recessed with being respectively provided with annular on the first surface of second sealing ring
Mouthful；The second surface of first sealing ring is resisted against the upper surface of the 3rd sealing ring, second sealing
The second surface of circle is resisted against the lower surface of the 3rd sealing ring.
It is preferred that the upper surface of the 3rd sealing ring and the lower surface have first annular recess and the respectively
Second ring recess, and the first annular recess and second annular notch be oppositely arranged；
First sealing ring is arranged in the first annular recess, and second sealing ring is arranged in second ring
In shape recess.
It is preferred that the seal assembly also includes upper press ring and lower pressure ring, the upper press ring is arranged in first sealing
In the annular notch of circle, the lower pressure ring is arranged in the annular notch of second sealing ring.
It is preferred that the angled seat valve also include cylinder, the cylinder be located at the valve pocket one end and with the valve pocket
Connection, the cylinder is provided with inner chamber.
It is preferred that the cylinder is provided with port, described port one end connects the inner chamber, the port other end
For being passed through gas.
It is preferred that the cylinder is provided with spring, the spring is located at the interior intracavitary, and one end of the valve rod is connected simultaneously
It is arranged in the spring.
It is preferred that the valve pocket is provided with through hole close to one end of the cylinder, the through hole is connected with the gap.
It is preferred that the material of first sealing ring, the second sealing ring and the 3rd sealing ring is rubber.
Positive effect of the present utility model is：
The utility model by setting the first sealing ring, the second sealing ring and the 3rd sealing ring, make seal assembly no matter
Under conditions of malleation operating mode, or under conditions of negative pressure operating mode, seal assembly can play well sealedly effect.
Brief description of the drawings
Fig. 1 is the structural representation of a part for the angled seat valve of the preferred embodiment of the utility model one.
Fig. 2 is the dimensional structure diagram of the upper press ring of the angled seat valve of the preferred embodiment of the utility model one.
Fig. 3 is the dimensional structure diagram of the first sealing ring of the angled seat valve of the preferred embodiment of the utility model one.
Fig. 4 is the dimensional structure diagram of the 3rd sealing ring of the angled seat valve of the preferred embodiment of the utility model one.
Fig. 5 is the dimensional structure diagram of the second sealing ring of the angled seat valve of the preferred embodiment of the utility model one.
Fig. 6 is the dimensional structure diagram of the lower pressure ring of the angled seat valve of the preferred embodiment of the utility model one.
Description of reference numerals
Valve rod 10
Valve pocket 20
Through hole 21
Upper gap 41
Lower gap 42
First sealing ring 50
The first surface 51 of first sealing ring
The annular notch 53 of first sealing ring
The second surface 52 of first sealing ring
3rd sealing ring 60
Upper surface 61
Lower surface 62
First annular recess 63
Second sealing ring 70
The first surface 71 of second sealing ring
The second surface 72 of second sealing ring
The annular notch 73 of second sealing ring
Upper press ring 81
Lower pressure ring 82
Cylinder 90
Port 91
Direction A
Direction B
Embodiment
Name preferred embodiment, and become apparent from intactly illustrating the utility model with reference to accompanying drawing.
As shown in figures 1 to 6, the present embodiment provides a kind of angled seat valve, and it includes a valve rod 10, a valve pocket 20 and sealing
Component, the valve pocket 20 is movably set in outside the valve rod 10, and provided with a gap between the valve pocket 20 and the valve rod 10,
The seal assembly is in the gap.
The seal assembly includes：First sealing ring 50, the second sealing ring 70 and the 3rd sealing ring 60, the first sealing ring
50th, the 3rd sealing ring 60 and the second sealing ring 70 are movably set in the periphery of valve rod 10 in valve pocket 20.First sealing ring 50,
The material of second sealing ring 70 and the 3rd sealing ring 60 is elastomeric material.It is preferred that the first sealing ring 50, the second sealing ring 70
Material with the 3rd sealing ring 60 is rubber.
3rd sealing ring 60 is located between the first sealing ring 50 and the second sealing ring 70, and the 3rd sealing ring 60 has relative set
The upper surface 61 put and lower surface 62, the first sealing ring 50 are arranged in upper surface 61, and the second sealing ring 70 is arranged in lower surface 62.
In the present embodiment, the upper surface 61 of the 3rd sealing ring 60 and lower surface 62 have the first annular annular of recess 63 and second respectively
Recess (is not indicated) in figure, and first annular recess 63 and second annular notch are oppositely arranged；First sealing ring 50 card is set
In first annular recess 63, the second sealing ring 70 is arranged in second annular notch.
First sealing ring 50 is used for when the opposing valve sleeves 20 downward (direction B in Fig. 1) of valve rod 10 are moved to the close of the gap
Envelope.First sealing ring 50 includes the first surface and second surface along the axially opposing setting of valve rod 10, the of the first sealing ring
There is the annular notch 53 of the first sealing ring on one surface 51；The second surface 52 of first sealing ring is resisted against the 3rd sealing ring 60
Upper surface 61.
Axial direction of second sealing ring 70 along valve rod 10 is spaced and is oppositely arranged with the first sealing ring 50, and the second sealing ring 70
Sealing when being moved for the opposing valve sleeves 20 upward (direction A in Fig. 1) of valve rod 10 to the gap.Second sealing ring 70 includes edge
There is the second sealing on the first surface and second surface of the axially opposing setting of valve rod 10, the first surface 71 of the second sealing ring
The annular notch 73 of circle；The second surface 72 of second sealing ring is resisted against the lower surface 62 of the 3rd sealing ring 60.
The seal assembly also includes upper press ring 81 and lower pressure ring 82, and upper press ring 81 is arranged in the annular recessed of the first sealing ring
In mouth 53, lower pressure ring 82 is arranged in the annular notch 73 of the second sealing ring.
The angled seat valve also includes cylinder 90, and cylinder 90 is located at one end of valve pocket 20 and is connected with valve pocket 20, cylinder 90
(do not indicated in figure) provided with inner chamber.
Cylinder 90 is provided with port 91, and the one end of port 91 connects the inner chamber, and the other end of port 91 is used to be passed through gas
Body.
Cylinder 90 is provided with spring (not indicated in figure), and the spring is located at the interior intracavitary, and one end connection of valve rod 10
And be arranged in the spring.
The gap is divided into upper gap 41 and lower gap 42 by the seal assembly.
Valve pocket 20 is provided with through hole 21 close to one end of cylinder 90, and through hole 21 is connected with upper gap 41.
Operation principle of the present utility model is as follows：When gas enters the inner chamber of cylinder from port, interior intracavitary air pressure becomes big,
It is pressurized and compresses positioned at the spring of interior intracavitary, band ovable valve stem opposing valve sleeves is moved upwards, and valve opening makes liquid communication.Now, under
The air pressure in gap is more than the air pressure (under conditions of malleation operating mode) in upper gap, and lower pressure ring presses to the second sealing ring.Second sealing ring
Annular notch on compressive deformation, the first surface of the second sealing ring becomes big, plays sealing function.
Wait when the valve is closed, valve rod opposing valve sleeves are moved downward, the air pressure in lower gap is die-offed, the air pressure in lower gap is less than
The air pressure (under conditions of negative pressure operating mode) in upper gap, upper press ring presses to the first sealing ring.First sealing ring compressive deformation, first is close
Annular notch on the first surface of seal becomes big, expands outwardly, is close to the inwall of valve pocket, fills up the interior of seal assembly and valve pocket
The gap that wall is produced, seals, and effectively prevents the liquid leakage in lower gap from, to upper gap, maintaining angled seat valve normally to transport
Make.
Although the foregoing describing embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and protection domain of the present utility model is defined by the appended claims.Those skilled in the art
On the premise of without departing substantially from principle of the present utility model and essence, various changes or modifications can be made to these embodiments,
But these changes and modification each fall within protection domain of the present utility model.
Claims (9)
1. a kind of angled seat valve, it includes a valve rod, a valve pocket and seal assembly, and the valve pocket is movably set in the valve rod
Outside, and between the valve pocket and the valve rod gap is provided with, the seal assembly is in the gap, it is characterised in that
The seal assembly includes：
First sealing ring, to the close of the gap when first sealing ring is moved downward for the relatively described valve pocket of the valve rod
Envelope；
Second sealing ring, axial direction of second sealing ring along the valve rod and the first sealing ring interval are simultaneously oppositely arranged,
And second sealing ring is used for sealing when the relatively described valve pocket of the valve rod is moved upwards to the gap；
3rd sealing ring, the 3rd sealing ring is located between first sealing ring and second sealing ring, and the described 3rd
Sealing ring has the upper and lower surface being oppositely arranged, and first sealing ring is arranged in the upper surface, and described second is close
Seal is arranged in the lower surface；
Wherein, the material of first sealing ring, the second sealing ring and the 3rd sealing ring is elastomeric material, first sealing
Circle, the 3rd sealing ring and the second sealing ring are movably set in the periphery of the valve rod in the valve pocket.
2. angled seat valve as claimed in claim 1, it is characterised in that first sealing ring is wrapped with second sealing ring
Include the first surface and second surface along the axially opposing setting of the valve rod, first sealing ring and second sealing ring
The first surface on be respectively provided with annular notch；The second surface of first sealing ring is resisted against the 3rd sealing
The upper surface of circle, the second surface of second sealing ring is resisted against the lower surface of the 3rd sealing ring.
3. angled seat valve as claimed in claim 2, it is characterised in that the upper surface of the 3rd sealing ring and it is described under
Surface has first annular recess and the second annular notch, and the first annular recess and the second annular notch phase respectively
To setting；
First sealing ring is arranged in the first annular recess, and it is recessed that second sealing ring is arranged in second annular
In mouthful.
4. angled seat valve as claimed in claim 2, it is characterised in that the seal assembly also includes upper press ring and lower pressure ring,
The upper press ring is arranged in the annular notch of first sealing ring, and the lower pressure ring is arranged in second sealing ring
The annular notch in.
5. angled seat valve as claimed in claim 1, it is characterised in that the angled seat valve also includes cylinder, the cylinder position
It is connected in one end of the valve pocket and with the valve pocket, the cylinder is provided with inner chamber.
6. angled seat valve as claimed in claim 5, it is characterised in that the cylinder is provided with port, described port one end
The inner chamber is connected, the port other end is used to be passed through gas.
7. angled seat valve as claimed in claim 5, it is characterised in that the cylinder is provided with spring, the spring is located at described
Interior intracavitary, and one end of the valve rod connects and is arranged in the spring.
8. angled seat valve as claimed in claim 5, it is characterised in that the valve pocket is close to one end of the cylinder provided with logical
Hole, the through hole is connected with the gap.
9. the angled seat valve as any one of claim 1-8, it is characterised in that first sealing ring, the second sealing
The material of circle and the 3rd sealing ring is rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720228003.XU CN206592637U (en) | 2017-03-09 | 2017-03-09 | Angled seat valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720228003.XU CN206592637U (en) | 2017-03-09 | 2017-03-09 | Angled seat valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206592637U true CN206592637U (en) | 2017-10-27 |
Family
ID=60123681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720228003.XU Active CN206592637U (en) | 2017-03-09 | 2017-03-09 | Angled seat valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206592637U (en) |
-
2017
- 2017-03-09 CN CN201720228003.XU patent/CN206592637U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |