CN202629318U - Valve rod sealing structure of floating ball valve - Google Patents
Valve rod sealing structure of floating ball valve Download PDFInfo
- Publication number
- CN202629318U CN202629318U CN 201220157355 CN201220157355U CN202629318U CN 202629318 U CN202629318 U CN 202629318U CN 201220157355 CN201220157355 CN 201220157355 CN 201220157355 U CN201220157355 U CN 201220157355U CN 202629318 U CN202629318 U CN 202629318U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- floating ball
- ball valve
- sealing structure
- 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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- Taps Or Cocks (AREA)
- Details Of Valves (AREA)
Abstract
The utility model discloses a valve rod sealing structure of a floating ball valve, and the valve rod comprises a valve body, wherein a valve cap is arranged at the top of the valve body; a valve rod mounting hole is formed at the middle part of the valve cover; a valve rod is mounted in the valve rod mounting hole; a packing gland is arranged between the valve rod and the valve cap; packing is filled in the cavity under the packing gland; and an O-shaped seal ring is mounted at the lower end of the packing. The valve rod sealing structure of the floating ball valve is enhanced in sealing property, so that leakage is avoided, and the effects of loss reduction and environmental friendliness are achieved.
Description
Technical field
The utility model relates to a kind of floating ball valve valve rod leak-proof structure.
Background technique
It is a lot of in pipeline, to work the ball valve kind of blocking medium, and hard seal eccentric ball valve and soft seal constant-current type ball valve are arranged, and the sealing that seals the constant-current type ball valve firmly is a metal to metal; The mutual friction of phase-contact surface meeting phase makes to be sealed with certain leakage after long-time the use, and the sealing of soft seal constant-current type ball valve is a metal pair rubber; The long-time back phase-contact surface that uses can the phase mutual friction, and sealing can reach zero leakage, existing technology since graphite packing in use for some time; If often do not tight a bolt; Will leak, therefore, influence working life.
The model utility content
The utility model provides a kind of double sealing structure, O shape circle and graphite packing sealing, fire prevention and the better floating ball valve valve rod leak-proof structure of sealing effect.
The utility model technical solution problem provides following scheme:
A kind of floating ball valve valve rod leak-proof structure; Comprise valve body, it is characterized in that: the top of said valve body is provided with valve gap, and the middle part of said valve gap is provided with the valve rod mounting hole; In the said valve rod mounting hole valve rod is installed; Be provided with Gland between said valve rod and the valve gap, be filled with filler in the cavity of said Gland below, the lower end of said filler is equipped with O-ring seals.
Between the upper end of said valve rod and the Gland axle sleeve is installed.
Said filler is a graphite material.
The O shape circle design particularly suitable valve frequent movement environment of the utility model is because graphite packing in use for some time, if often do not tight a bolt; Will leak; Therefore, seal with O ring plays crucial sealing, has strengthened the performance of sealing; Stopped the possibility that leaks outside, played and practice thrift loss and environment protection effect.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Referring to accompanying drawing, a kind of floating ball valve valve rod leak-proof structure comprises valve body 1; The top of said valve body 1 is provided with valve gap 2, and the middle part of said valve gap 2 is provided with valve rod mounting hole 3, in the said valve rod mounting hole 3 valve rod 4 is installed; Be provided with Gland 5 between said valve rod 4 and the valve gap 2, be filled with filler 6 in the cavity of said Gland 5 belows, the lower end of said filler 6 is equipped with O-ring seals 7; Between the upper end of said valve rod 4 and the Gland 5 axle sleeve 8 is installed, said filler is a graphite material.
Claims (3)
1. floating ball valve valve rod leak-proof structure; Comprise valve body, it is characterized in that: the top of said valve body is provided with valve gap, and the middle part of said valve gap is provided with the valve rod mounting hole; In the said valve rod mounting hole valve rod is installed; Be provided with Gland between said valve rod and the valve gap, be filled with filler in the cavity of said Gland below, the lower end of said filler is equipped with O-ring seals.
2. according to the said floating ball valve valve rod leak-proof structure of claim 1, it is characterized in that: between the upper end of said valve rod and the Gland axle sleeve is installed.
3. according to the said floating ball valve valve rod leak-proof structure of claim 1, it is characterized in that: said filler is a graphite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220157355 CN202629318U (en) | 2012-04-13 | 2012-04-13 | Valve rod sealing structure of floating ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220157355 CN202629318U (en) | 2012-04-13 | 2012-04-13 | Valve rod sealing structure of floating ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202629318U true CN202629318U (en) | 2012-12-26 |
Family
ID=47382519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220157355 Expired - Fee Related CN202629318U (en) | 2012-04-13 | 2012-04-13 | Valve rod sealing structure of floating ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202629318U (en) |
-
2012
- 2012-04-13 CN CN 201220157355 patent/CN202629318U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20130413 |