CN205824353U - A kind of valve sealing device - Google Patents
A kind of valve sealing device Download PDFInfo
- Publication number
- CN205824353U CN205824353U CN201620633532.3U CN201620633532U CN205824353U CN 205824353 U CN205824353 U CN 205824353U CN 201620633532 U CN201620633532 U CN 201620633532U CN 205824353 U CN205824353 U CN 205824353U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing
- annular wedge
- valve rod
- sealing 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.)
- Withdrawn - After Issue
Links
Abstract
nullThe utility model discloses a kind of valve sealing device，Including: the valve rod of valve inner is inserted from the centre bore of valve gap，The inner peripheral wall on centre bore top is provided with open-topped cannelure，Sealing material it is filled with in cannelure，The lower annular wedge being arranged with on valve rod in being downwardly into cannelure and being pressed on sealing material，At the top of lower annular wedge, valve rod is provided with a circle sealing ring placing trough，Sealing shroud sealing ring on valve rod it is placed with in sealing ring placing trough，The upper annular wedge being sheathed on valve rod it is provided with at the top of lower annular wedge，Sealing ring can be pressed in sealing ring placing trough downwards under the effect of hold-down mechanism by upper annular wedge，Sealing ring is made to seal lower gap between annular wedge and valve rod，And lower annular wedge can be made to be pressed downward against tightening seal material，Sealing material is made to compress the gap between sealed valve stem and valve gap.This utility model has good airproof performance and the advantage of length in service life.
Description
Technical field
This utility model relates to valve, is specifically related to a kind of valve sealing device.
Background technology
The structure of the valve used at present is: includes valve rod and is provided with the valve body of water inlet and outlet, at valve
The top of body is provided with installing port, is provided with valve gap at installing port top cover labyrinth, is provided with to connect valve inner in valve gap
And the centre bore that permission valve rod passes, described valve rod stretches into valve inner from centre bore and is fixed with spool, and valve rod is at the machine of driving
Under the driving of structure, band movable valve plug blocks or connects water inlet and outlet, is provided with in order to movable sealing between valve rod and valve gap
The valve sealing device in gap between the two, the structure of described valve sealing device is: on the inner peripheral wall on centre bore top
It is provided with open-topped cannelure, in cannelure, is filled with sealing material, valve rod is arranged with and can be downwardly into cannelure
Annular wedge that is interior and that be pressed on sealing material, annular wedge is pressed downward against tightening seal material under the effect of hold-down mechanism, makes sealing material
Compress the gap between sealed valve stem and valve gap.There is sealing effectiveness difference in above-mentioned valve sealing device and service life short etc. lacks
Point.
Utility model content
The purpose of this utility model is to provide the valve sealing device of a kind of good airproof performance.
For achieving the above object, this utility model adopts the technical scheme that described a kind of valve sealing device, bag
Include: insert the valve rod of valve inner from the centre bore of valve gap, the inner peripheral wall on centre bore top is provided with open-topped
Cannelure, is filled with sealing material in cannelure, is arranged with in being downwardly into cannelure and is pressed on sealing material on valve rod
Lower annular wedge, lower annular wedge top valve rod is provided with a circle sealing ring placing trough, at sealing ring placing trough
In be placed with sealing shroud sealing ring on valve rod, lower annular wedge top be provided be sheathed on valve rod upper annular pressure
Seat, sealing ring can be pressed in sealing ring placing trough downwards under the effect of hold-down mechanism by upper annular wedge, makes sealing ring close
The lower gap between annular wedge and valve rod of envelope, and lower annular wedge can be made to be pressed downward against tightening seal material, make sealing material compress close
Gap between envelope valve rod and valve gap.
Further, aforesaid a kind of valve sealing device, wherein: described upper annular wedge is by upper in be distributed up and down
Ring packing pressing plate and lower ring packing pressing plate composition.
Further, aforesaid a kind of valve sealing device, wherein: upper ring packing pressing plate and lower ring packing pressing plate it
Between in cone match contact.
Further, aforesaid a kind of valve sealing device, wherein: be provided with a coil spring in the bottom of sealing ring and place
Groove, is placed with ring spring in spring placing trough, and ring spring makes sealing ring banding on valve rod.
Further, aforesaid a kind of valve sealing device, wherein: the structure of described hold-down mechanism is: in upper annular
The top of wedge is provided with the pressure cap being sheathed on valve rod, hold-down bolt be passed down through pressure cap and lower annular wedge after with valve gap spiral shell
Stricture of vagina connects.
Further, aforesaid a kind of valve sealing device, wherein: the structure of described hold-down mechanism is: in upper annular
The top of sealing clamp is provided with the pressure cap being sheathed on valve rod, after hold-down bolt is passed down through pressure cap and upper ring packing pressing plate
Threaded with valve gap.
By the enforcement of technique scheme, the beneficial effects of the utility model are: good airproof performance, effectively prevent valve
The generation of drainage, easy accessibility and service life are long.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of valve sealing device described in the utility model.
Fig. 2 is the enlarged diagram at the H position shown in Fig. 1.
Detailed description of the invention
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, described a kind of valve sealing device, including: insert in valve body 2 from the centre bore of valve gap 1
The valve rod 3 in portion, is provided with open-topped cannelure on the inner peripheral wall on centre bore top, is filled with sealing in cannelure
Material 4, the lower annular wedge 5 being arranged with on valve rod 3 in being downwardly into cannelure and being pressed on sealing material 4, in lower annular pressure
The top of seat 5 is provided with a circle sealing ring placing trough around valve rod 3, is placed with sealing shroud at valve rod 3 in sealing ring placing trough
On sealing ring 6, lower annular wedge 5 top be provided be sheathed on valve rod 3 upper annular wedge, upper annular wedge pressure
Downwards sealing ring 6 can be pressed in sealing ring placing trough under the effect of tight mechanism, make sealing ring 6 seal lower annular wedge 5 and
Gap between valve rod 3, and lower annular wedge 5 can be made to be pressed downward against tightening seal material 4, make sealing material 4 compress sealed valve stem 3 and valve
Gap between lid 1；In the present embodiment, described upper annular wedge by the upper ring packing pressing plate 7 being distributed up and down and under
Ring packing pressing plate 8 forms, and such installation and maintenance are more convenient；In the present embodiment, upper ring packing pressing plate 7 and lower ring packing
Contact in cone match between pressing plate 8, so at upper ring packing pressing plate 7, lower ring packing pressing plate 8 is compressed the mistake of sealing ring
Cheng Zhong, can be prevented effectively from sealing ring 6 and be tilted by pressure, thus improve sealing；In the present embodiment, at the end of sealing ring 6
Portion is provided with a coil spring placing trough, is placed with ring spring 9 in spring placing trough, and ring spring 9 makes sealing ring 6 banding exist
On valve rod 3, thus substantially increase sealing；The structure of described hold-down mechanism is: set at the top of upper ring packing pressing plate 7
Be equipped with the pressure cap 10 being sheathed on valve rod 3, hold-down bolt 11 be passed down through after pressure cap 10 and upper ring packing pressing plate 7 with valve gap 1
Threaded, above-mentioned hold-down mechanism simple in construction, dismount easy to maintenance；
During use, the water source being positioned at valve inner can be along valve rod 3 the most upwards impact sealing material 4, when water source breaks through close
After envelope material 4 causes the seal failure of sealing material 4, due to the existence of sealing ring 6, continuing can quilt along the water source that valve rod 3 moves up
Sealing ring 6 is stopped, thus cannot overflow go out, and then is effectively increased the sealing of valve, effectively prevent valve and leaks
The generation of phenomenon；When needing after sealing ring 6 uses a period of time to change, only need to first remove hold-down bolt 11, take out the most successively
Pressure cap 10, upper annular seal plate 7 and lower annular seal plate 8, then further take out old sealing ring 6 and put new sealing ring 6, so
After make again pressure cap 10, upper annular seal plate 7 and lower annular seal plate 8 be again pressed on lower annular wedge 5 on, lock pressure the most again
Tight bolt 11, disassembling, assembling and replacing is the most convenient.The utility model has the advantages that: good airproof performance, effectively prevent valve and leak
The generation of phenomenon, easy accessibility and service life are long.
Claims (6)
1. a valve sealing device, including: insert the valve rod of valve inner from the centre bore of valve gap, in centre bore top
It is provided with open-topped cannelure in circumferential wall, in cannelure, is filled with sealing material, it is characterised in that: sheathed on valve rod
The lower annular wedge having in being downwardly into cannelure and be pressed on sealing material, is arranged around valve rod at the top of lower annular wedge
There is a circle sealing ring placing trough, sealing ring placing trough is placed with sealing shroud sealing ring on valve rod, at lower annular wedge
Top be provided be sheathed on valve rod upper annular wedge, upper annular wedge under the effect of hold-down mechanism can downwards will sealing
Circle is pressed in sealing ring placing trough, makes sealing ring seal lower gap between annular wedge and valve rod, and can make lower annular
Wedge is pressed downward against tightening seal material, makes sealing material compress the gap between sealed valve stem and valve gap.
A kind of valve sealing device the most according to claim 1, it is characterised in that: described upper annular wedge is by up and down
The upper ring packing pressing plate of distribution and lower ring packing pressing plate composition.
A kind of valve sealing device the most according to claim 2, it is characterised in that: upper ring packing pressing plate is close with lower annular
Contact in cone match between envelope pressing plate.
A kind of valve sealing device the most according to claim 1, it is characterised in that: the bottom of sealing ring is provided with a circle
Spring placing trough, is placed with ring spring in spring placing trough, and ring spring makes sealing ring banding on valve rod.
A kind of valve sealing device the most according to claim 1, it is characterised in that: the structure of described hold-down mechanism is:
The top of upper annular wedge is provided with the pressure cap being sheathed on valve rod, after hold-down bolt is passed down through pressure cap and lower annular wedge
Threaded with valve gap.
A kind of valve sealing device the most according to claim 2, it is characterised in that: the structure of described hold-down mechanism is:
The top of upper ring packing pressing plate is provided with the pressure cap being sheathed on valve rod, and hold-down bolt is passed down through pressure cap and upper annular is close
Threaded with valve gap after envelope pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620633532.3U CN205824353U (en) | 2016-06-24 | 2016-06-24 | A kind of valve sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620633532.3U CN205824353U (en) | 2016-06-24 | 2016-06-24 | A kind of valve sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205824353U true CN205824353U (en) | 2016-12-21 |
Family
ID=58146120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620633532.3U Withdrawn - After Issue CN205824353U (en) | 2016-06-24 | 2016-06-24 | A kind of valve sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205824353U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972307A (en) * | 2016-06-24 | 2016-09-28 | 江苏永钢集团有限公司 | Valve sealing device |
-
2016
- 2016-06-24 CN CN201620633532.3U patent/CN205824353U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972307A (en) * | 2016-06-24 | 2016-09-28 | 江苏永钢集团有限公司 | Valve sealing device |
| CN105972307B (en) * | 2016-06-24 | 2018-04-13 | 江苏永钢集团有限公司 | A kind of valve sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161221 Effective date of abandoning: 20180413 |