CN203784318U - Self-sealing pressure stop valve - Google Patents
Self-sealing pressure stop valve Download PDFInfo
- Publication number
- CN203784318U CN203784318U CN201420098295.6U CN201420098295U CN203784318U CN 203784318 U CN203784318 U CN 203784318U CN 201420098295 U CN201420098295 U CN 201420098295U CN 203784318 U CN203784318 U CN 203784318U
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- CN
- China
- Prior art keywords
- valve
- valve body
- valve rod
- flap
- rod
- 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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- Lift Valve (AREA)
Abstract
The utility model discloses a self-sealing pressure stop valve which has good stability during operation. The self-sealing pressure stop valve comprises a valve body, wherein an inlet channel and an outlet channel are formed in the valve body; a valve clack mutually matched with the inlet channel and the outlet channel is arranged in the valve body, a valve seat mutually matched with the valve clack is arranged in the valve body, and a chromium alloy block is arranged on the valve clack; a circular arc bulge mutually matched with the chromium alloy block is formed at one end of a valve rod, the chromium alloy block on the valve clack is propped against the circular arc bulge at one end of the valve rod, and the other end of the valve rod penetrates through a valve deck to be connected with a valve rod operating mechanism; and a soft stainless steel seal ring is arranged between a valve nut and the valve deck, an inclined surface arranged at the lower end of the soft stainless steel seal ring is mutually matched with an inclined surface at the upper end of the valve deck, a hard alloy is arranged on the inclined surface at the upper end of the valve deck, and an O-shaped reinforcing rod is arranged on the outer side of the upper end of the valve deck and fixed on the valve rod operating mechanism through fixed bolts.
Description
Technical field
The utility model relates to a kind of valve, relates in particular to a kind of pressure self-sealing stop valve.
Background technique
For the fluid in cutting out pipeline effectively, on pipeline, all can be provided with valve.Existing valve generally only has a kind of function cut-off or non-return, function ratio is more single, some places are because Long contact time wear rate is high, cause valve shortening in working life, firm poor performance between valve rod and valve gap, controls inaccuracy simultaneously, and the sealability between valve body and valve gap does not reach requirement, easily cause liquid medium to leak, can not meet well usage requirement.
Model utility content
Technical problem to be solved in the utility model is: the pressure self-sealing stop valve that when a kind of operation is provided, steadiness is good.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: pressure self-sealing stop valve, comprise: valve body, in described valve body, be provided with inlet passage and outlet passage, in described valve body, be provided with the flap cooperatively interacting with inlet passage and outlet passage, in described valve body, be provided with the valve seat cooperatively interacting with flap, on flap, be provided with evanohm piece, on one end of valve rod, be provided with the circular arc projection cooperatively interacting with evanohm piece, circular arc projection on evanohm piece and valve rod one end on flap offsets, the other end of described valve rod is connected with valve rod operating device through valve gap, the valve mother that passes through of described valve gap is arranged in valve body, between described valve mother and valve gap, be provided with soft stainless steel sealing ring, the inclined-plane that the lower end of described soft stainless steel sealing ring is provided with inclined-plane and valve gap upper end cooperatively interacts, on the inclined-plane, upper end of described valve gap, be provided with cemented carbide, there is O type reinforcing bar in the upper end of described valve gap arranged outside, described O type reinforcing bar is fixed on valve rod operating device by fixing bolt.
The utility model has the advantages that: above-mentioned pressure self-sealing stop valve is arranged on pipeline to have two kinds of functions of stop valve and safety check, frictional force is little, easy to maintenance simultaneously, and when operation, firm performance is good, and good sealing effect can meet usage requirement well.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model pressure self-sealing stop valve.
In figure: 1, valve body, 2, inlet passage, 3, outlet passage, 4, flap, 5, valve seat, 6, evanohm piece, 7, valve rod, 8, circular arc projection, 9, valve gap, 10, valve rod operating device, 11, valve mother, 12, soft stainless steel sealing ring, 13, cemented carbide, 14, O type reinforcing bar, 15, fixing bolt.
Embodiment
Describe in detail particular content of the present utility model below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, pressure self-sealing stop valve, comprise: valve body 1, in described valve body 1, be provided with inlet passage 2 and outlet passage 3, in described valve body 1, be provided with the flap 4 cooperatively interacting with inlet passage 2 and outlet passage 3, in described valve body 1, be provided with the valve seat 5 cooperatively interacting with flap 4, on flap 4, be provided with evanohm piece 6, on one end of valve rod 7, be provided with the circular arc projection 8 cooperatively interacting with evanohm piece 6, evanohm piece 6 on flap 4 offsets with the circular arc projection 8 on valve rod 7 one end, the other end of described valve rod 7 is connected with valve rod operating device 10 through valve gap 9, the valve mother 11 that passes through of described valve gap 9 is arranged in valve body 1, between described valve female 11 and valve gap 9, be provided with soft stainless steel sealing ring 12, the inclined-plane that the lower end of described soft stainless steel sealing ring 12 is provided with inclined-plane and valve gap 9 upper ends cooperatively interacts, on the inclined-plane, upper end of described valve gap 9, be provided with cemented carbide 13, there is O type reinforcing bar 14 in the upper end of described valve gap 9 arranged outside, described O type reinforcing bar 14 is fixed on valve rod operating device 10 by fixing bolt 15.
Above-mentioned pressure self-sealing stop valve is arranged on pipeline, fluid enters in valve body 1 by inlet passage 2, by upwards poppet stem 7 of valve rod operating device 10, flap 4 is backed down by fluid, inlet passage 2 and outlet passage 3 are communicated with, when fluid interior through out-of-date at valve body 1, can produce thrust upwards to valve gap 9, thrust is larger, valve gap 9 is better in the effect lower seal performance of soft stainless steel sealing ring 12 and cemented carbide 13, can there is not fluid leakage, valve rod and valve gap are more firmly firm while operation by O type reinforcing bar 14, in the time of needs throttle down, by valve rod operating device 10 extruding valve rod 7 downwards, flap 4 matches with valve seat 5 under the effect of valve rod 7, inlet passage 2 and outlet passage 3 are spaced, the circular arc projection 8 of valve rod 7 one end offsets with evanohm piece 6, reduce the wear rate between flap 4 and valve rod 7, extend the working life of valve.
Claims (1)
1. pressure self-sealing stop valve, it is characterized in that: comprising: valve body (1), in described valve body (1), be provided with inlet passage (2) and outlet passage (3), in described valve body (1), be provided with the flap (4) cooperatively interacting with inlet passage (2) and outlet passage (3), in described valve body (1), be provided with the valve seat (5) cooperatively interacting with flap (4), on flap (4), be provided with evanohm piece (6), on one end of valve rod (7), be provided with the circular arc projection (8) cooperatively interacting with evanohm piece (6), evanohm piece (6) on flap (4) offsets with the circular arc projection (8) on valve rod (7) one end, the other end of described valve rod (7) is connected with valve rod operating device (10) through valve gap (9), the valve mother (11) that passes through of described valve gap (9) is arranged in valve body (1), between described valve mother (11) and valve gap (9), be provided with soft stainless steel sealing ring (12), the inclined-plane that the lower end of described soft stainless steel sealing ring (12) is provided with inclined-plane and valve gap (9) upper end cooperatively interacts, on the inclined-plane, upper end of described valve gap (9), be provided with cemented carbide (13), there is O type reinforcing bar (14) in the upper end arranged outside of described valve gap (9), described O type reinforcing bar (14) is fixed on valve rod operating device (10) by fixing bolt (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420098295.6U CN203784318U (en) | 2014-03-05 | 2014-03-05 | Self-sealing pressure stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420098295.6U CN203784318U (en) | 2014-03-05 | 2014-03-05 | Self-sealing pressure stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203784318U true CN203784318U (en) | 2014-08-20 |
Family
ID=51320506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420098295.6U Expired - Fee Related CN203784318U (en) | 2014-03-05 | 2014-03-05 | Self-sealing pressure stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203784318U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899768A (en) * | 2014-03-05 | 2014-07-02 | 大丰市奥凯流体机械有限公司 | Pressure self-sealing stop valve |
-
2014
- 2014-03-05 CN CN201420098295.6U patent/CN203784318U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899768A (en) * | 2014-03-05 | 2014-07-02 | 大丰市奥凯流体机械有限公司 | Pressure self-sealing stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhu Huabing Inventor after: Ding Xuefeng Inventor after: Cai Lei Inventor after: Gu Yunfei Inventor before: Ding Xuefeng Inventor before: Cai Lei Inventor before: Gu Yunfei |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: DING XUEFENG CAI LEI GU YUNFEI TO: ZHU HUABING DING XUEFENG CAI LEI GU YUNFEI |
|
| 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: 20140820 Termination date: 20160305 |