CN204664607U - A kind of valve rod leak-proof structure - Google Patents
A kind of valve rod leak-proof structure Download PDFInfo
- Publication number
- CN204664607U CN204664607U CN201520312590.1U CN201520312590U CN204664607U CN 204664607 U CN204664607 U CN 204664607U CN 201520312590 U CN201520312590 U CN 201520312590U CN 204664607 U CN204664607 U CN 204664607U
- Authority
- CN
- China
- Prior art keywords
- valve
- filler
- seal
- valve rod
- handwheel
- 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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- Details Of Valves (AREA)
Abstract
A kind of valve rod leak-proof structure, comprise valve body, valve rod and valve seat, valve rod is arranged in valve body, valve seat is arranged on valve body lower end, and described valve rod is provided with handwheel, is provided with handwheel and cap above handwheel, valve rod is provided with packing seal structure and Stem Mut, described packing seal structure is made up of stuffing box, filler and gland, and filler is arranged in stuffing box, and described gland is arranged on above filler; Be provided with filler spacer ring in the middle of filler, this filler spacer ring is hollow structure, is provided with seal gease in described hollow structure, and described filler spacer ring inner ring surface is provided with bleeding holes; Stem Mut structure is made up of Nut pole and nut cap, and described Nut pole is provided with oil nozzle, and oil nozzle is arranged on Nut pole inwall, and described oil nozzle is cone structure; Adopt metal waveform gasket seal between valve flange, valve body and valve base chamber are provided with valve base sealing structure, and described valve base sealing structure is double seal, and this double sealing structure is made up of soft seal and hard sealing.
Description
Technical field
This practicability relates to valve technology field, particularly relates to a kind of valve rod leak-proof structure.
Background technique
When valve has not allowed the phenomenon that leaks outside, and one of main path leaked outside is medium leaks from valve rod, therefore the Seal Design of stem structure is extremely important, on market a lot of valve products be all because valve rod leak-proof structure design good not, product occurs that working life is short and using effect is poor, even because this defect causes work safety accident.
Model utility content
For the deficiencies in the prior art, the utility model provides a kind of valve rod leak-proof structure, and this structure can well overcome the deficiencies in the prior art.
To achieve these goals, the technological scheme that the utility model provides is as follows: a kind of valve rod leak-proof structure, comprise valve body, valve rod and valve seat, valve rod is arranged in valve body, and valve seat is arranged on valve body lower end, described valve rod is provided with handwheel, be provided with handwheel above handwheel and cap, valve rod be provided with packing seal structure and Stem Mut, described packing seal structure is made up of stuffing box, filler and gland, filler is arranged in stuffing box, and described gland is arranged on above filler; Be provided with filler spacer ring in the middle of filler, this filler spacer ring is hollow structure, is provided with seal gease in described hollow structure, and described filler spacer ring inner ring surface is provided with bleeding holes; Stem Mut structure is made up of Nut pole and nut cap, and described Nut pole is provided with oil nozzle, and oil nozzle is arranged on Nut pole inwall, and described oil nozzle is cone structure; Adopt metal waveform gasket seal between valve flange, valve body and valve base chamber are provided with valve base sealing structure, and described valve base sealing structure is double seal, and this double sealing structure is made up of soft seal and hard sealing.
The beneficial effects of the utility model are designed by said structure, valve rod is in packing seal structure part, filler is when using certain hour, the filler spacer ring in filler neutral position is arranged on by the extruding of gland, the seal gease being arranged on filler spacer ring inside oozes out in the bleeding holes of filler spacer ring, simultaneously good in maintenance " bearing effect " and " labyrinth effect " again at the reliable sealing that ensure that valve rod, ensure that the stabilized seal effect of filler, simultaneously because Stem Mut structural design partial design has oil nozzle, add oiling agent by this oil nozzle place to lubricate this part valve rod, also reach certain sealing effect simultaneously, double sealing structure design between valve rod lower value seat and valve body is further to having carried out good isolating seal between valve stem part and valve channel, can find out in sum, the product that this structural design provides has done very large improvement on valve rod leak-proof structure, valve products can well be made up because this part-structure leaks outside the relevant issues caused.
Accompanying drawing explanation
Fig. 1 is the structural representation of this model utility;
In figure: 1, valve body; 2, valve rod; 3, Nut pole; 4, oil nozzle; 5, nut cap; 6, handwheel; 7, handwheel cap; 8, filler; 9, filler spacer ring; 10, metal corrugated gasket; 11, valve base sealing structure.
Embodiment
As shown in Figure 1, a kind of valve rod leak-proof structure, comprise valve body 1, valve rod 2 and valve seat, valve rod 2 is arranged in valve body 1, and valve seat is arranged on valve body 1 lower end, described valve rod 2 is provided with handwheel 6, be provided with handwheel above handwheel 6 and cap 7, valve rod 2 be provided with packing seal structure and Stem Mut, described packing seal structure is made up of stuffing box, filler 8 and gland, filler 8 is arranged in stuffing box, and described gland is arranged on above filler 8; Be provided with filler spacer ring 9 in the middle of filler 8, this filler spacer ring 9 is hollow structure, is provided with seal gease in described hollow structure, and described filler spacer ring 9 inner ring surface is provided with bleeding holes; Stem Mut structure is made up of Nut pole 3 and nut cap 5, and described Nut pole 3 is provided with oil nozzle 4, and oil nozzle 4 is arranged on Nut pole 3 inwall, and described oil nozzle 4 is cone structure; Adopt metal corrugated gasket 10 to seal between valve body 1 flange, valve body 1 and valve base chamber are provided with valve base sealing structure 11, and described valve base sealing structure 11 is double seal, and this double sealing structure is made up of soft seal and hard sealing.
Claims (1)
1. a valve rod leak-proof structure, comprise valve body, valve rod and valve seat, valve rod is arranged in valve body, valve seat is arranged on valve body lower end, and described valve rod is provided with handwheel, is provided with handwheel and cap above handwheel, it is characterized in that: described valve rod is provided with packing seal structure and Stem Mut, described packing seal structure is made up of stuffing box, filler and gland, and filler is arranged in stuffing box, and described gland is arranged on above filler; Be provided with filler spacer ring in the middle of filler, this filler spacer ring is hollow structure, is provided with seal gease in described hollow structure, and described filler spacer ring inner ring surface is provided with bleeding holes; Stem Mut structure is made up of Nut pole and nut cap, and described Nut pole is provided with oil nozzle, and oil nozzle is arranged on Nut pole inwall, and described oil nozzle is cone structure; Adopt metal waveform gasket seal between valve flange, valve body and valve base chamber are provided with valve base sealing structure, and described valve base sealing structure is double seal, and this double sealing structure is made up of soft seal and hard sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520312590.1U CN204664607U (en) | 2015-05-15 | 2015-05-15 | A kind of valve rod leak-proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520312590.1U CN204664607U (en) | 2015-05-15 | 2015-05-15 | A kind of valve rod leak-proof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204664607U true CN204664607U (en) | 2015-09-23 |
Family
ID=54134990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520312590.1U Expired - Fee Related CN204664607U (en) | 2015-05-15 | 2015-05-15 | A kind of valve rod leak-proof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204664607U (en) |
-
2015
- 2015-05-15 CN CN201520312590.1U patent/CN204664607U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20160515 |