CN207018552U - A kind of detachable pneumatic stop valve valve base sealing structure - Google Patents
A kind of detachable pneumatic stop valve valve base sealing structure Download PDFInfo
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- CN207018552U CN207018552U CN201720744137.7U CN201720744137U CN207018552U CN 207018552 U CN207018552 U CN 207018552U CN 201720744137 U CN201720744137 U CN 201720744137U CN 207018552 U CN207018552 U CN 207018552U
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- Prior art keywords
- valve
- valve seat
- medium passage
- sealing
- sealing structure
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- 238000007789 sealing Methods 0.000 title claims abstract description 88
- 239000000463 material Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 3
- 230000008439 repair process Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 239000003034 coal gas Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model provides a kind of detachable pneumatic stop valve valve base sealing structure, first medium passage (21) is provided with valve body (2), second medium passage (22), valve seat (1) is provided with through hole (11), valve seat (1) is mounted on the valve body (2) between first medium passage (21) and second medium passage (22), and first medium passage (21) can be connected with second medium passage (22) by through hole (11), sealing gasket (4) is arranged on the lower end surface of valve rod (3), sealing gasket (4) can cover through hole (11) and can be fitted with the upper surface of valve seat (1), sealing ring (5) is located between the lower end outside face valve body (2) relative with the lower end outside face of valve seat (1) of valve seat (1).The utility model improves the sealing effectiveness of pneumatic cut-off valve, and valve base sealing structure is detachably installed, and is easy to repair, while also improve stop valve causes the life-span, and then reduces cost.
Description
Technical field
Pneumatic cut-off valve technical field is the utility model is related to, valve base is cut off more particularly to a kind of detachable pneumatic
Sealing structure.
Background technology
Pneumatic cut-off valve is also known as pneumatic stopping valve, and it is one kind of executing agency in automated system, pneumatic by more springs
Diaphragm actuator or floating piston executing agency form with regulating valve, receive the signal of regulation meter, control process pipe
Cut-out, connection or the switching of interior fluid.With simple in construction, it is quick on the draw, the features such as reliable in action.Stone can be widely used in
The industrial production sectors such as oil, chemical industry, metallurgy.
In gaspipe line, stop valve is generally fitted with before igniter, to realize the break-make of coal gas, and in stop valve
Break-make coal gas realizes that this requires its sealing reliable, it is impossible to has leakage by its sealing surface of seat；In addition, by
The erosion of coal gas, the valve base sealing of stop valve is easy to wear, such as now entirely changes stop valve, uneconomical.
Utility model content
In view of the above the shortcomings that prior art, the purpose of this utility model is that providing a kind of detachable pneumatic cuts
Disconnected valve base sealing structure, for easy to wear, the integral replacing stop valve cost that solves the valve base sealing of stop valve in the prior art
The problem of high.
In order to achieve the above objects and other related objects, the utility model provides a kind of detachable pneumatic cut-out valve base
Sealing structure, it is characterised in that the sealing structure comprises at least：Valve seat, valve body, valve rod, sealing gasket, sealing ring, the valve
First medium passage, second medium passage are provided with vivo, and the valve seat is provided with through hole, and the valve seat is mounted on first Jie
On valve body between matter passage and second medium passage, and the first medium passage can be connected with second medium passage by through hole
Logical, the sealing gasket is arranged on the lower end surface of valve rod, and the sealing gasket can cover the through hole and can be with the valve seat
Upper surface fits, the sealing ring be located at valve seat the lower end outside face valve body relative with the lower end outside face of valve seat it
Between.
Preferably, the lower surface seat of the valve seat is on valve body, and the wall of its lateral surface and the valve body fits.
Preferably, the assembly relation of the valve seat and the valve body is interference fit.
Preferably, the sealing ring is enclosed on the lower end outside face of the valve seat.
Preferably, the valve seat is annular solid, and the sealing ring is O-ring.
Preferably, the lower end outside face of the valve seat is along the circumferential direction provided with the first groove, in the inner side of the sealing ring
In first groove.
Preferably, the lower end surface of the valve rod is provided with the second groove, and the upper end of the sealing gasket is embedded in described
In two grooves.
Preferably, the sealing gasket, sealing ring use exotic material.
As described above, a kind of detachable pneumatic stop valve valve base sealing structure of the present utility model, has beneficial below
Effect：Sealing gasket is set between valve seat and valve rod, sealing ring is set between valve seat and valve body, improves the sealing of pneumatic cut-off valve
Effect, and valve base sealing structure is detachably installed, and is easy to repair, while the life-span that causes of stop valve is also improved, and then drop
Low cost.
Brief description of the drawings
Fig. 1 is shown as a kind of detachable pneumatic stop valve valve base sealing structure schematic cross-section of the present utility model.
Fig. 2 is shown as I in a kind of Fig. 1 of detachable pneumatic stop valve valve base sealing structure of the present utility model and tied part
Structure enlarged diagram.
Component label instructions
1 valve seat
11 through holes
12 first grooves
2 valve bodies
21 first medium passages
22 second medium passages
3 valve rods
31 second grooves
32 connectors
4 seals
5 sealing rings
Embodiment
Embodiment of the present utility model is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the present utility model easily.
Fig. 1 is referred to Fig. 2.It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only to
Coordinate the content disclosed in specification, so that those skilled in the art understands and reads, be not limited to the utility model
Enforceable qualifications, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or size
Adjustment, in the case where not influenceing the effect of the utility model can be generated and the purpose that can reach, all should still fall in the utility model
In the range of disclosed technology contents can be covered.Meanwhile in this specification it is cited as " on ", " under ", " left side ",
The term on " right side ", " centre " and " one " etc., understanding for narration is merely convenient to, and it is enforceable to be not used to restriction the utility model
Scope, its relativeness are altered or modified, enforceable when being also considered as the utility model in the case where changing technology contents without essence
Category.
As Figure 1-Figure 2, the utility model provides a kind of detachable pneumatic stop valve valve base sealing structure, at least wraps
Include：Valve seat 1, valve body 2, valve rod 3, sealing gasket 4, sealing ring 5, valve body 2 is interior to be provided with first medium passage 21, second medium passage
22, valve seat 1 is provided with through hole 11, and valve seat 1 is mounted on the valve body 2 between first medium passage 21 and second medium passage 22
On, and first medium passage 21 can be connected with second medium passage 22 by through hole 11, sealing gasket 4 is arranged on the lower end of valve rod 3
On end face, sealing gasket 4 can cover through hole 11 and can be fitted with the upper surface of valve seat 1, and sealing ring 5 is located at outside the lower end of valve seat 1
Between the valve body 2 relative with the lower end outside face of valve seat 1 of side.Sealing gasket 4 is set on the lower end surface of valve rod 3, works as valve
When bar 3 moves to the upper surface of valve seat 1 to cut off the circulation between first medium passage 21 and second medium passage 22, sealing gasket
4 between the lower surface of valve rod 3 and the upper surface of valve seat 1, and sealing gasket 4 can cover through hole 11 and can be with the upper end of valve seat 1
Face fits, and the upper sealing surface that thus sealing gasket 4 is formed with valve seat 1 can be good at seal valve seat 1.Also, under valve seat 1
Sealing ring 5 is set between the end lateral surface valve body 2 relative with the lower end outside face of valve seat 1, circulation medium can be prevented from valve
Leaked between seat 1 and valve body 2, thus the lower end outside face of valve seat 1 may make up lower sealing surface, this valve with sealing ring 5, valve body 2
The upper-lower seal structure of seat can play preferable sealing effectiveness, also, sealing structure of the present utility model be it is dismountable, when
When valve base sealing structure abradable seal effect is bad, only valve seat need to be pulled down from valve body or sealing gasket is changed, without
Whole stop valve is changed, thereby saving cost.
As Figure 1-Figure 2, the lower surface seat of valve seat 1 is on valve body 2, and the wall of its lateral surface and valve body 2 fits.
The assembly relation of valve seat 1 and valve body 2 is interference fit, preferably to ensure sealing, but the mistake between valve seat 1 and valve body 2
The amount of being full of should not be too big, so that detachable maintaining becomes easy.Sealing ring 5 is enclosed on the lower end outside face of valve seat 1.Valve seat 1 is
Annular solid, sealing ring 5 can be adopted as O-ring.Because valve base sealing structure of the present utility model is detachable, valve seat is being required
The magnitude of interference between 1 and valve body 2 should not it is too big in the case of, the sealing ring 5 between valve seat 1 and valve body 2 can prevent valve seat 1 with
The leakage being also easy to produce between valve body 2 because the magnitude of interference is less big.For the sealing being further ensured that between valve seat 1 and valve body 2, can show
Example property as Figure 1-Figure 2, the lower end outside face of valve seat 1 is along the circumferential direction provided with the first groove 12, in the inner side of sealing ring 5
In the first groove 12.In view of the temperature in use of stop valve, resistant to elevated temperatures material, such as rubber material can be selected in sealing ring 5
Material.
Preferably, can exemplarily as Figure 1-Figure 2, the lower end surface of valve rod 3 is provided with the second groove 31, sealing gasket
4 upper end is embedded in the second groove 31.Sealing gasket 4 can use exotic material, such as rubber blanket.Under sealing gasket 4 and valve rod 3
The connected mode of end end face can be fixedly connected using exemplary connector 32 as Figure 1-Figure 2, and connector 32 can
It is attached from bolt.
To sum up, the utility model sets sealing gasket between valve seat and valve rod, and sealing ring is set between valve seat and valve body, improves
The sealing effectiveness of pneumatic cut-off valve, and valve base sealing structure is detachably installed, be easy to repair, while also improve stop valve
Cause the life-span, and then reduce cost.
So the utility model effectively overcomes various shortcoming of the prior art and has high industrial utilization.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited
Type.Any person skilled in the art can all be carried out without prejudice under spirit and scope of the present utility model to above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model
God and all equivalent modifications completed under technological thought or change, should be covered by claim of the present utility model.
Claims (8)
1. a kind of detachable pneumatic stop valve valve base sealing structure, it is characterised in that the sealing structure comprises at least：Valve seat
(1), valve body (2), valve rod (3), sealing gasket (4), sealing ring (5), first medium passage (21), the are provided with the valve body (2)
Second medium passage (22), the valve seat (1) are provided with through hole (11), and the valve seat (1) is mounted on first medium passage
(21) on the valve body (2) between second medium passage (22), and the first medium passage (21) and second medium passage
(22) can be connected by through hole (11), the sealing gasket (4) is arranged on the lower end surface of valve rod (3), and the sealing gasket (4) can
Cover the through hole (11) and can be fitted with the upper surface of the valve seat (1), the sealing ring (5) is located under valve seat (1)
Between the end lateral surface valve body (2) relative with the lower end outside face of valve seat (1).
2. detachable pneumatic stop valve valve base sealing structure according to claim 1, it is characterised in that：The valve seat
(1) lower surface seat is on valve body (2), and the wall of its lateral surface and the valve body (2) fits.
3. detachable pneumatic stop valve valve base sealing structure according to claim 1, it is characterised in that：The valve seat
(1) it is interference fit with the assembly relation of the valve body (2).
4. detachable pneumatic stop valve valve base sealing structure according to claim 1, it is characterised in that：The sealing ring
(5) it is enclosed on the lower end outside face of the valve seat (1).
5. detachable pneumatic stop valve valve base sealing structure according to claim 4, it is characterised in that：The valve seat
(1) it is annular solid, the sealing ring (5) is O-ring.
6. detachable pneumatic stop valve valve base sealing structure according to claim 5, it is characterised in that：The valve seat
(1) lower end outside face is along the circumferential direction provided with the first groove (12), and it is recessed to be embedded in described first on the inside of the sealing ring (5)
In groove (12).
7. detachable pneumatic stop valve valve base sealing structure according to claim 1, it is characterised in that：The valve rod
(3) lower end surface is provided with the second groove (31), and the upper end of the sealing gasket (4) is embedded in second groove (31).
8. detachable pneumatic stop valve valve base sealing structure according to claim 1, it is characterised in that：The sealing gasket
(4), sealing ring (5) uses exotic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720744137.7U CN207018552U (en) | 2017-06-23 | 2017-06-23 | A kind of detachable pneumatic stop valve valve base sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720744137.7U CN207018552U (en) | 2017-06-23 | 2017-06-23 | A kind of detachable pneumatic stop valve valve base sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207018552U true CN207018552U (en) | 2018-02-16 |
Family
ID=61485732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720744137.7U Expired - Fee Related CN207018552U (en) | 2017-06-23 | 2017-06-23 | A kind of detachable pneumatic stop valve valve base sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207018552U (en) |
-
2017
- 2017-06-23 CN CN201720744137.7U patent/CN207018552U/en not_active Expired - Fee Related
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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: 20180216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |