CN203067818U - Floating ball valve rod anti-explosion structure - Google Patents
Floating ball valve rod anti-explosion structure Download PDFInfo
- Publication number
- CN203067818U CN203067818U CN 201220575022 CN201220575022U CN203067818U CN 203067818 U CN203067818 U CN 203067818U CN 201220575022 CN201220575022 CN 201220575022 CN 201220575022 U CN201220575022 U CN 201220575022U CN 203067818 U CN203067818 U CN 203067818U
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- CN
- China
- Prior art keywords
- valve rod
- valve
- floating ball
- ball valve
- 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.)
- Expired - Fee Related
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- Taps Or Cocks (AREA)
Abstract
The utility model discloses a floating ball valve rod anti-explosion structure. The floating ball valve rod anti-explosion structure comprises a valve body. A valve deck is arranged on the top of the valve body, a valve rod installing hole is formed in the middle of the valve deck, a valve rod is installed inside the valve rod installing hole, and a protruding shoulder is arranged at the lower end of the valve rod. A packing gland is arranged between the valve rod and the valve deck, packing is filled in a cavity below the packing gland, and an O-shaped sealing ring is installed at the lower end of the packing. A ring-shaped protrusion is arranged at the lower end of the inner wall of the valve deck and presses above the protruding shoulder, and an anti-explosion ring is arranged between the ring-shaped protrusion and the protruding shoulder. According to the floating ball valve rod anti-explosion structure, sealing performance is improved, a leakage possibility is eradicated, and the effect of reducing loss and protecting environment can be achieved.
Description
Technical field
The utility model relates to a kind of floating ball valve valve rod blasting resistance structure.
Background technique
It is a lot of to work the ball valve kind of blocking medium in pipeline, hard seal eccentric ball valve and soft seal constant-current type ball valve are arranged, the sealing of hard sealing constant-current type ball valve is metal to metal, phase-contact surface meeting phase mutual friction after long-time the use, make and be sealed with certain leakage, the sealing of soft seal constant-current type ball valve is metal pair rubber, the long-time back phase-contact surface that uses can the phase mutual friction, sealing can reach zero leakage, prior art 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 blasting resistance structure of sealing effect.
The utility model technical solution problem provides following scheme:
A kind of floating ball valve valve rod blasting resistance structure, comprise valve body, the top of described valve body is provided with valve gap, the middle part of described valve gap is provided with the valve rod mounting hole, in the described valve rod mounting hole valve rod is installed, the lower end of described valve rod is provided with convex shoulder, be provided with Gland between described valve rod and the valve gap, be filled with filler in the cavity of described Gland below, the lower end of described filler is equipped with O-ring seals, the lower end of described valve gap inwall is provided with annular protrusion, and described annular protrusion is pressed in the top of convex shoulder, is provided with explosion-proof ring between described annular protrusion and the convex shoulder.
Between the upper end of described valve rod and the Gland axle sleeve is installed.
Described filler is graphite material.
O shape circle design particularly suitable valve frequent movement environment of the present utility model, 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 save loss and environment protection effect.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Referring to accompanying drawing, a kind of floating ball valve valve rod blasting resistance structure, comprise valve body 1, the top of described valve body 1 is provided with valve gap 2, the middle part of described valve gap 2 is provided with valve rod mounting hole 3, in the described valve rod mounting hole 3 valve rod 4 is installed, the lower end of described valve rod 4 is provided with convex shoulder 9, be provided with Gland 5 between described valve rod 4 and the valve gap 2, be filled with filler 6 in the cavity of described Gland 5 belows, the lower end of described filler 6 is equipped with O-ring seals 7, between the upper end of described valve rod 4 and the Gland 5 axle sleeve 8 is installed, described filler is graphite material, and the lower end of described valve gap 2 inwalls is provided with annular protrusion 10, described annular protrusion 10 is pressed in the top of convex shoulder 9, is provided with explosion-proof ring 11 between described annular protrusion 10 and the convex shoulder 9.
Claims (3)
1. floating ball valve valve rod blasting resistance structure, comprise valve body, it is characterized in that: the top of described valve body is provided with valve gap, the middle part of described valve gap is provided with the valve rod mounting hole, in the described valve rod mounting hole valve rod is installed, the lower end of described valve rod is provided with convex shoulder, be provided with Gland between described valve rod and the valve gap, be filled with filler in the cavity of described Gland below, the lower end of described filler is equipped with O-ring seals, the lower end of described valve gap inwall is provided with annular protrusion, and described annular protrusion is pressed in the top of convex shoulder, is provided with explosion-proof ring between described annular protrusion and the convex shoulder.
2. according to the described floating ball valve valve rod of claim 1 blasting resistance structure, it is characterized in that: between the upper end of described valve rod and the Gland axle sleeve is installed.
3. according to the described floating ball valve valve rod of claim 1 blasting resistance structure, it is characterized in that: described filler is graphite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220575022 CN203067818U (en) | 2012-11-02 | 2012-11-02 | Floating ball valve rod anti-explosion structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220575022 CN203067818U (en) | 2012-11-02 | 2012-11-02 | Floating ball valve rod anti-explosion structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203067818U true CN203067818U (en) | 2013-07-17 |
Family
ID=48766604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220575022 Expired - Fee Related CN203067818U (en) | 2012-11-02 | 2012-11-02 | Floating ball valve rod anti-explosion structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203067818U (en) |
-
2012
- 2012-11-02 CN CN 201220575022 patent/CN203067818U/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: 20130717 Termination date: 20131102 |