CN103899767A - Pressure self-sealing stop valve - Google Patents
Pressure self-sealing stop valve Download PDFInfo
- Publication number
- CN103899767A CN103899767A CN201410078660.1A CN201410078660A CN103899767A CN 103899767 A CN103899767 A CN 103899767A CN 201410078660 A CN201410078660 A CN 201410078660A CN 103899767 A CN103899767 A CN 103899767A
- Authority
- CN
- China
- Prior art keywords
- valve
- nut
- valve body
- pressure self
- flap
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
- F16K1/04—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle with a cut-off member rigid with the spindle, e.g. main valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
- F16K1/482—Attaching valve members to screw-spindles with a collar on the spindle or a groove in the spindle, by which a fixing element is supported, the spindle reaching into the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a pressure self-sealing stop valve which is good in buffer effect. The pressure self-sealing stop valve comprises a valve body, wherein an inlet channel and an outlet channel are formed in the valve body, a valve clack which is matched with the inlet channel and the outlet channel is arranged in the valve body, a chromium alloy block is arranged on the valve clack, an arc-shaped protrusion which is matched with the chromium alloy block is arranged at one end of a valve rod, the chromium alloy block on the valve clack abuts against the arc-shaped protrusion at one end of the valve rod, the other end of the valve rod stretches out of a nut on a valve deck to be connected with a handle, the nut is connected with the valve deck through a fastening screw, the valve deck is arranged in the valve body through a valve nut, a soft stainless steel sealing ring is arranged between the valve nut and the valve deck, an oblique plane is arranged at the lower end of the soft stainless steel sealing ring and is matched with an oblique plane at the upper end of the valve deck, and hard alloy is arranged on the oblique plane at the upper end of the valve deck.
Description
Technical field
The present invention relates to a kind of valve, relate 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, and be all to adopt vertical arrangement, cushioning effect is poor, and 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.
Summary of the invention
Technical problem to be solved by this invention is: the pressure self-sealing stop valve that a kind of good buffer effect is provided.In order to solve the problems of the technologies described above, the technical solution used in the present invention 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, 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 nut that the other end of valve rod stretches out on valve gap is connected with handle, between described nut and valve gap, be connected by set screw, described valve gap is arranged in valve body by valve mother, 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.
Advantage of the present invention is: above-mentioned pressure self-sealing stop valve is arranged on pipeline, has two kinds of functions of stop valve and safety check simultaneously, and frictional force is little, the good buffer effect of y type structure, easy to maintenance, when operation, firm performance is good, good sealing effect, can meet usage requirement well.
Accompanying drawing explanation
Fig. 1 is the structural representation of pressure self-sealing stop valve of the present invention.
In figure: 1, valve body, 2, inlet passage, 3, outlet passage, 4, flap, 5, evanohm piece, 6, valve rod, 7, circular arc projection, 8, valve gap, 9, nut, 10, handle, 11, set screw, 12, valve mother, 13, soft stainless steel sealing ring, 14, cemented carbide.
Embodiment
Describe in detail particular content of the present invention 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, on flap 4, be provided with evanohm piece 5, on one end of valve rod 6, be provided with the circular arc projection 7 cooperatively interacting with evanohm piece 5, evanohm piece 5 on flap 4 offsets with the circular arc projection 7 on valve rod 6 one end, the nut 9 that the other end of valve rod 6 stretches out on valve gap 8 is connected with handle 10, between described nut 9 and valve gap 8, be connected by set screw 11, described valve gap 8 is arranged in valve body 1 by valve mother 12, between described valve female 12 and valve gap 8, be provided with soft stainless steel sealing ring 13, the inclined-plane that the lower end of described soft stainless steel sealing ring 13 is provided with inclined-plane and valve gap 8 upper ends cooperatively interacts, on the inclined-plane, upper end of described valve gap 8, be provided with cemented carbide 14.
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 6 of handle 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 8, thrust is larger, valve gap 8 is better in the effect lower seal performance of soft stainless steel sealing ring 13 and cemented carbide 14, can there is not fluid leakage, valve rod is connected for 11 2 times by set screw with valve gap, more firmly firm when operation, in the time of needs throttle down, by handle 10 extruding valve rod 6 downwards, flap 4 makes inlet passage 2 and outlet passage 3 be spaced under the effect of valve rod 6, the circular arc projection 7 of valve rod 6 one end offsets with evanohm piece 5, reduce the wear rate between flap 4 and valve rod 6, extend the working life of valve, the impact force that flap 4 is subject to fluid reduces, play good buffer function.
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), on flap (4), be provided with evanohm piece (5), on one end of valve rod (6), be provided with the circular arc projection (7) cooperatively interacting with evanohm piece (5), evanohm piece (5) on flap (4) offsets with the circular arc projection (7) on valve rod (6) one end, the nut (9) that the other end of valve rod (6) stretches out on valve gap (8) is connected with handle (10), between described nut (9) and valve gap (8), be connected by set screw (11), described valve gap (8) is arranged in valve body (1) by valve mother (12), between described valve mother (12) and valve gap (8), be provided with soft stainless steel sealing ring (13), the inclined-plane that the lower end of described soft stainless steel sealing ring (13) is provided with inclined-plane and valve gap (8) upper end cooperatively interacts, on the inclined-plane, upper end of described valve gap (8), be provided with cemented carbide (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410078660.1A CN103899767A (en) | 2014-03-05 | 2014-03-05 | Pressure self-sealing stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410078660.1A CN103899767A (en) | 2014-03-05 | 2014-03-05 | Pressure self-sealing stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103899767A true CN103899767A (en) | 2014-07-02 |
Family
ID=50991273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410078660.1A Pending CN103899767A (en) | 2014-03-05 | 2014-03-05 | Pressure self-sealing stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103899767A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114643A (en) * | 2015-09-16 | 2015-12-02 | 吴忠仪表有限责任公司 | Self-aligning valve element |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2470314A1 (en) * | 1979-11-20 | 1981-05-29 | Snecma | Manually operated bleed nipple - has self-aligning spring-loaded plug with spherical seal engaging conical seat |
| CN201802888U (en) * | 2010-08-04 | 2011-04-20 | 扬中市阀门厂有限公司 | Pressure balancing stop valve |
| CN202327149U (en) * | 2011-11-17 | 2012-07-11 | 盐城思达德民力阀门有限公司 | Self-sealing stop valve |
| CN102966744A (en) * | 2012-11-28 | 2013-03-13 | 江苏鼎晟阀门有限公司 | Chlorine stop valve |
| CN203230863U (en) * | 2013-04-12 | 2013-10-09 | 上海开维喜阀门集团有限公司 | Anti-impact stop valve sealing structure |
| CN203421180U (en) * | 2013-08-07 | 2014-02-05 | 兰州高压阀门有限公司 | Ultra-high-temperature ultra-high-pressure oxygen valve |
| CN203784319U (en) * | 2014-03-05 | 2014-08-20 | 大丰市奥凯流体机械有限公司 | Self-sealing pressure stop valve |
-
2014
- 2014-03-05 CN CN201410078660.1A patent/CN103899767A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2470314A1 (en) * | 1979-11-20 | 1981-05-29 | Snecma | Manually operated bleed nipple - has self-aligning spring-loaded plug with spherical seal engaging conical seat |
| CN201802888U (en) * | 2010-08-04 | 2011-04-20 | 扬中市阀门厂有限公司 | Pressure balancing stop valve |
| CN202327149U (en) * | 2011-11-17 | 2012-07-11 | 盐城思达德民力阀门有限公司 | Self-sealing stop valve |
| CN102966744A (en) * | 2012-11-28 | 2013-03-13 | 江苏鼎晟阀门有限公司 | Chlorine stop valve |
| CN203230863U (en) * | 2013-04-12 | 2013-10-09 | 上海开维喜阀门集团有限公司 | Anti-impact stop valve sealing structure |
| CN203421180U (en) * | 2013-08-07 | 2014-02-05 | 兰州高压阀门有限公司 | Ultra-high-temperature ultra-high-pressure oxygen valve |
| CN203784319U (en) * | 2014-03-05 | 2014-08-20 | 大丰市奥凯流体机械有限公司 | Self-sealing pressure stop valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114643A (en) * | 2015-09-16 | 2015-12-02 | 吴忠仪表有限责任公司 | Self-aligning valve element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of 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 |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140702 |