CN207195679U - A kind of stop valve - Google Patents
A kind of stop valve Download PDFInfo
- Publication number
- CN207195679U CN207195679U CN201720974870.8U CN201720974870U CN207195679U CN 207195679 U CN207195679 U CN 207195679U CN 201720974870 U CN201720974870 U CN 201720974870U CN 207195679 U CN207195679 U CN 207195679U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- bonnet
- sealing
- valve body
- 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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Abstract
The utility model discloses a kind of stop valve, it is high to aim to provide a kind of sealing, make the stop valve of long lifespan, its drip irrigation device is a kind of stop valve, including valve body, valve rod and bonnet, bonnet is placed on valve rod and is connected with valve body screw thread, valve rod is with bonnet also by threaded connection, described valve rod one end is provided with the flap being placed in valve body, flap includes the fixed part being sequentially connected, main part and sealing, fixed part is provided with inner chamber, interior intracavitary is connected with the bearing being set on valve rod, the sealing clamp for fixing bearing is additionally provided with lumen openings, valve rod is provided with the snap ring for being placed in intracavity bottom, the outer wall of sealing is the first arc sealed wall, the valve port that can be contradicted with flap is provided with valve body, valve port is provided with the second arc sealed wall being adapted to the first arc sealed wall, the utility model is applied to valve technology field.
Description
Technical field
A kind of valve technology field is the utility model is related to, more specifically, it relates to a kind of stop valve.
Background technology
Stop valve, it is a kind of most popular valve, Lift is little, easy to manufacture, easy to maintenance, is not only applicable
In mesolow, and it is applied to high pressure, very popular, the closure principle of stop valve is, by valve rod pressure, to make valve clack sealing surface
It is brought into close contact with the sealing valve port face in valve body, prevents flow of media, stop valve in the market generally includes valve body, valve
Lid, valve rod and flap, valve rod drive flap to rotate, and during valve core rotation, valve clack sealing surface can produce relative turn with sealing valve port face
Dynamic, then valve clack sealing surface easily wears, and influences sealing and service life, and the sealing property between valve rod and bonnet is also outstanding in addition
To be important.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of sealing height, makes long lifespan
Stop valve.
To achieve the above object, the utility model provides following technical scheme：A kind of stop valve, including valve body, valve rod
And bonnet, bonnet are placed on valve rod and are connected with valve body screw thread, valve rod and bonnet also by threaded connection, it is characterized in that：It is described
Valve rod one end is provided with the flap being placed in valve body, and flap includes fixed part, main part and the sealing being sequentially connected, fixed part
Inner chamber is provided with, interior intracavitary is connected with the bearing being set on valve rod, the sealing for fixing bearing is additionally provided with lumen openings
Clamp, valve rod, which is provided with, is placed in the snap ring of intracavity bottom, and the outer wall of sealing be the first arc sealed wall, provided with can be with valve body
The valve port that flap contradicts, valve port are provided with the second arc sealed wall being adapted to the first arc sealed wall.
By using above-mentioned technical proposal, bearing and inner chamber clamping, sealing clamp are connected with thread in inner cavity, and sealing clamp is
Fixation is played to bearing, sealing function also is played to inner chamber, prevents bearing rust, can flexibly be turned between valve rod and bearing
Dynamic, snap ring is fixed below bearing and with valve rod by nut, avoids valve rod and bearing axial slip, in use, flap will not
Is rotated because valve rod rotates, flap can only realize lifting, so as to avoid flap and valve port because of rotation and caused by wear, raising
The sealing and service life of flap, the first arc sealed wall and the second arc sealed wall can be contradicted preferably, when the first arc
When shape sealed wall and the second arc sealed wall contradict, valve rod is rotated further downward force, but due to the setting of bearing, can avoid
Flap produces rotation relative to valve port, that is, avoids the abrasion of sealing, improve the sealing of flap, due to the first arc sealed wall
It is arcuate structure with the second arc sealed wall, when flap moves downward, the first arc sealed wall and the second arc sealed wall
Conflict dynamics gradually increases, and sealing also gradually steps up, and arcwall face uniform force, and not easy to wear, sealing area is big, so as to enter
One step improves the sealing between flap and valve port.
The utility model is further arranged to：It is cased with being placed in the graphite annulus between valve rod and bonnet, bonnet on the valve rod
Interior to be provided with the spacing ring inconsistent with graphite annulus one end, graphite annulus and the inconsistent one side of spacing ring are taper surface, graphite annulus
Step groove is additionally provided with outer wall, immersion oil asbestos yarn is filled in step groove, the oilhole of step groove is communicated with the inwall of graphite annulus,
The one end of bonnet away from valve body is provided with the pad inconsistent with immersion oil asbestos yarn, and bonnet is additionally provided with use on one end away from valve body
In the gland nut of compress gasket.
By using above-mentioned technical proposal, graphite annulus has good anti-wear performance, and gland nut is threadedly coupled with bonnet,
Produce lower pressure when screwing gland nut to pad, while immersion oil asbestos yarn produces extruding because of pad vertically, radially produces swollen
It is swollen, i.e., radial compression is produced to graphite annulus, make preferably to contact between graphite annulus and valve rod, and immersion oil asbestos yarn can exfiltrating part
Oil, the oil oozed out can flow to the inwall of graphite annulus through oil-through hole, that is, flow between graphite annulus and valve rod, reduce graphite annulus and valve rod
Between friction, while fluid side can be formed, graphite annulus is improved while sealing between graphite annulus and valve rod is ensured
Service life, spacing ring plays a part of axial restraint to graphite annulus, while graphite annulus is contradicted with spacing ring by taper surface, is carried
Sealing between high graphite annulus and valve body.
The utility model is further arranged to：Be connected with the bonnet port of one end of the valve body is provided with annular groove, annular groove
It is interior to be provided with sealing ring.
By using above-mentioned technical proposal, annular groove plays tentatively fixed effect to sealing ring, while works as bonnet and valve body
When screwing, extruding is produced to sealing ring, sealing ring is preferably engaged with annular groove, improves bonnet and the sealing of valve body connection end
Property.
Brief description of the drawings
Fig. 1 is a kind of structural representation of stop valve embodiment of the utility model.
Fig. 2 is A portions mplifying structure schematic diagram in a kind of stop valve embodiment Fig. 1 of the utility model.
Embodiment
It is described further referring to figs. 1 to a kind of stop valve embodiment of 2 pairs of the utility model.
A kind of stop valve, including valve body 1, valve rod 2 and bonnet 3, bonnet 3 are placed on valve rod 2 and are threadedly coupled with valve body 1,
Valve rod 2 and bonnet 3 also by threaded connection, it is characterized in that：Described one end of valve rod 2 is provided with the flap 4 being placed in valve body 1, valve
Valve 4 includes fixed part 5, main part 6 and the sealing 7 being sequentially connected, and fixed part 5 is provided with inner chamber, and interior intracavitary, which is connected with, to be arranged
Bearing 8 on valve rod 2, the sealing clamp 9 for fixing bearing 8 is additionally provided with lumen openings, and valve rod 2 is provided with and is placed in inner chamber
The snap ring 10 of bottom, the outer wall of sealing 7 is the first arc sealed wall 11, and the valve port that can be contradicted with flap 4 is provided with valve body 1
13, valve port 13 is provided with the second arc sealed wall 12 being adapted to the first arc sealed wall 11.
By using above-mentioned technical proposal, bearing 8 and inner chamber clamping, sealing clamp 9 are connected with thread in inner cavity, seal clamp
9 play fixation to bearing 8, also play sealing function to inner chamber, prevent the corrosion of bearing 8, can between valve rod 2 and bearing 8
Flexible rotating, snap ring 10 are fixed below bearing 8 and with valve rod 2 by nut, avoid valve rod 2 and the axial slip of bearing 8, are used
When, flap 4 will not rotate because rotating valve rod 2, and flap 4 can only realize lifting, so as to avoid flap 4 with valve port 13 because rotating
And caused abrasion, the sealing and service life of flap 4 are improved, the first arc sealed wall 11 and the second arc sealed wall 12 can
Preferably to contradict, when the first arc sealed wall 11 and the conflict of the second arc sealed wall 12, valve rod 2, which is rotated further, to be applied downwards
Power, but due to the setting of bearing 8, flap 4 can be avoided to produce rotation relative to valve port 13, that is, avoid the abrasion of sealing 7, carry
The sealing of high flap 4, because the first arc sealed wall 11 and the second arc sealed wall 12 are arcuate structure, flap 4 is downward
During motion, the conflict dynamics of the first arc sealed wall 11 and the second arc sealed wall 12 gradually increases, and sealing also gradually steps up,
And arcwall face uniform force, not easy to wear, sealing area is big, so as to further improve the sealing between flap 4 and valve port 13.
The utility model is further arranged to：The graphite annulus 21 being placed between valve rod 2 and bonnet 3 is cased with the valve rod 2,
The spacing ring 22 inconsistent with the one end of graphite annulus 21 is provided with bonnet 3, graphite annulus 21 is cone with the inconsistent one side of spacing ring 22
Shape face 23, is additionally provided with step groove on the outer wall of graphite annulus 21, filling immersion oil asbestos yarn 24 in step groove, on the inwall of graphite annulus 21
The oilhole 25 of step groove is communicated with, the one end of bonnet 3 away from valve body 1 is provided with the pad inconsistent with immersion oil asbestos yarn 24
26, bonnet 3 is additionally provided with the gland nut 27 for compress gasket 26 on one end away from valve body 1.
By using above-mentioned technical proposal, graphite annulus 21 has good anti-wear performance, gland nut 27 and the screw thread of bonnet 3
Connection, lower pressure is produced when screwing gland nut 27 to pad 26, while immersion oil asbestos yarn 24 squeezes because pad 26 produces vertically
Pressure, expansion is radially produced, i.e., radial compression is produced to graphite annulus 21, make preferably to contact between graphite annulus 21 and valve rod 2, and soaked
The meeting exfiltrating part oil of oilstone cotton thread 24, the oil oozed out can flow to the inwall of graphite annulus 21 through oil-through hole 25, that is, flow to graphite annulus 21
Between valve rod 2, reduce the friction between graphite annulus 21 and valve rod 2, while fluid side can be formed, ensure graphite annulus 21 with
The service life of graphite annulus 21 is improved between valve rod 2 while sealing, spacing ring 22 plays axial restraint to graphite annulus 21
Effect, while graphite annulus 21 is contradicted with spacing ring 22 by taper surface 23, improves the sealing between graphite annulus 21 and valve body 1.
The utility model is further arranged to：Be connected with bonnet 3 port of one end of the valve body 1 is provided with annular groove, ring
Sealing ring 28 is provided with groove.
By using above-mentioned technical proposal, annular groove plays tentatively fixed effect to sealing ring 28, while works as bonnet 3 and valve
When body 1 screws, extruding is produced to sealing ring 28, sealing ring 28 is preferably engaged with annular groove, improved bonnet 3 and be connected with valve body 1
The sealing at end.
Preferred embodiment of the present utility model is the foregoing is only, not limiting the utility model, the skill of this area
Art personnel carry out common variations and alternatives in the range of technical solutions of the utility model should all be included in guarantor of the present utility model
In the range of shield.
Claims (3)
1. a kind of stop valve, including valve body, valve rod and bonnet, bonnet is placed on valve rod and is connected with valve body screw thread, valve rod and valve
Cover also by threaded connection, it is characterized in that：Described valve rod one end is provided with the flap being placed in valve body, and flap includes being sequentially connected
Fixed part, main part and sealing, fixed part is provided with inner chamber, and interior intracavitary is connected with the bearing being set on valve rod, inner chamber
Opening is additionally provided with the sealing clamp for fixing bearing, and valve rod is provided with the snap ring for being placed in intracavity bottom, the outer wall of sealing
For the first arc sealed wall, valve body is interior to be provided with the valve port that can be contradicted with flap, and valve port is provided with and is adapted to the first arc sealed wall
The second arc sealed wall.
2. a kind of stop valve according to claim 1, it is characterized in that：It is cased with being placed between valve rod and bonnet on the valve rod
Graphite annulus, is provided with the spacing ring inconsistent with graphite annulus one end in bonnet, graphite annulus is with the inconsistent one side of spacing ring to bore
Shape face, is additionally provided with step groove on the outer wall of graphite annulus, filling immersion oil asbestos yarn in step groove, is communicated with the inwall of graphite annulus
The oilhole of step groove, the one end of bonnet away from valve body are provided with the pad inconsistent with immersion oil asbestos yarn, and bonnet is away from valve body
The gland nut for compress gasket is additionally provided with one end.
3. a kind of stop valve according to claim 2, it is characterized in that：The valve body is connected with bonnet on the port of one end
Provided with annular groove, sealing ring is provided with annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720974870.8U CN207195679U (en) | 2017-08-05 | 2017-08-05 | A kind of stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720974870.8U CN207195679U (en) | 2017-08-05 | 2017-08-05 | A kind of stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207195679U true CN207195679U (en) | 2018-04-06 |
Family
ID=61796589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720974870.8U Expired - Fee Related CN207195679U (en) | 2017-08-05 | 2017-08-05 | A kind of stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207195679U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843802A (en) * | 2018-08-31 | 2018-11-20 | 浙江高中压阀门有限公司 | A kind of pipeline sealing slurry valve/baiting valve |
| CN109184650A (en) * | 2018-09-07 | 2019-01-11 | 中国石油化工股份有限公司 | Dilute system is mixed under oil recovery by heating pump |
-
2017
- 2017-08-05 CN CN201720974870.8U patent/CN207195679U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843802A (en) * | 2018-08-31 | 2018-11-20 | 浙江高中压阀门有限公司 | A kind of pipeline sealing slurry valve/baiting valve |
| CN109184650A (en) * | 2018-09-07 | 2019-01-11 | 中国石油化工股份有限公司 | Dilute system is mixed under oil recovery by heating pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180406 Termination date: 20210805 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |