CN1399086A - Up-sealed downstream sealed valve - Google Patents
Up-sealed downstream sealed valve Download PDFInfo
- Publication number
- CN1399086A CN1399086A CN 01122771 CN01122771A CN1399086A CN 1399086 A CN1399086 A CN 1399086A CN 01122771 CN01122771 CN 01122771 CN 01122771 A CN01122771 A CN 01122771A CN 1399086 A CN1399086 A CN 1399086A
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- valve
- sealed
- valve rod
- conical cavity
- cone
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Abstract
The up-sealed downstream sealed valve has improved up-sealed structure and thus improved sealing performance when the valve is opened, and long service life. The sealed valve includes valve body, valve cap, valve core, valve rod and hand wheel. There are one conic cavity formed by the valve wall and one cone matching the conic cavity in the lower part of the valve rod. There are double conic and planar sealing or triple conic, planar and beveled sealing. The present invention may be used widely in various fluid controlling fields of different pressure, different temperature and different pH value.
Description
Technical field
The present invention relates to engineering element or parts, especially valve, tap and cock.
Background technique
Existing valve, tap and cock all are the adverse current sealings.What seal ring was positioned at valve body goes out to flow the chamber, and fluid is to destroy sealing to the pressure of seal ring, and sealing surface is subjected to the erosion of fluid, and ring wear is heavier, and sealability is relatively poor, and working life is shorter.
The applicant invented " downstream sealing valve " in 1997, and had applied for Chinese patent (97123311X).On this basis, applied for " rotary sealed uniflow valve " (001051431) afterwards again.Downstream sealing valve is contained in the bar cover in the valve gap by valve body and dress valve gap thereon, is contained in the valve rod in the bar cover, and the handwheel that is contained in the valve rod top is formed.Seal ring is equipped with in the bottom of valve rod, and the sealing circle is positioned at the influent stream chamber of valve body.After valve cut out, the pressure that fluid is applied on the seal ring was to promote sealing, does not have fluid on the sealing surface, promptly is not subjected to the erosion of fluid, and big more helping more of the pressure of fluid seals.But above-mentioned patent application has a common deficiency, is that the seal degree on top of valve is good inadequately.When valve is closed, by the seal ring following current sealing well that is positioned at the influent stream chamber; And when opening of valves, the sealing on valve top has just not too adapted to, and also exists the drawback that sealability is relatively poor, working life is short.
Summary of the invention
Technical problem to be solved by this invention is by changing the last sealing configuration of existing downstream sealing valve, the sealability of valve when opening to be improved a lot, the prolongation in working life.
Up-sealed downstream sealed valve comprises valve body, is contained in the valve gap at valve body top, is contained in the spool of valve inner, and it is inner and connect the valve rod of spool to be contained in valve gap, is contained in the handwheel on top on the valve rod.The inwall of valve gap has a conical cavity, and a cone that cooperates with conical cavity is arranged at the bottom of valve rod.Conical cavity and cone can with valve gap and valve rod consubstantiality, also can make conical cavity edge cover and cone edge respectively and overlap.Conical cavity and cone can metalwork to metalwork, also can metalwork to soft seal.Internal thread or outside thread are arranged at the bottom of valve rod, with the outside thread or the screw-internal thread fit of spool.
Obviously, because the sealing configuration that the top of downstream sealing valve adopts conical cavity and cone to cooperate, withstand voltage strength is very strong; Hydrodynamic pressure is big more, helps sealing more, has advantages such as sealability is strong, long service life, can be widely used in gas, the water of all kinds of high, normal, basic pressure, high and low temperature, height pH value, the occasion of wet goods flow control.
Description of drawings
Accompanying drawing 1 is the plan view of the embodiment of the invention one, accompanying drawing 2 and 3 is the valve gap of the embodiment of the invention two and the plan view of valve rod, attached Figure 4 and 5 are the valve gap of the embodiment of the invention three and the plan view of valve rod, and accompanying drawing 6 and 7 is the valve gap of the embodiment of the invention four and the plan view of valve rod.
Among above-mentioned each figure, 1, valve body, 2, spool, 3, conical cavity, 4, valve gap, 5, handwheel, 6, valve rod, 7, cone, 8, outside thread, 9, cone edge cover, 10, internal thread, 11, conical cavity edge cover, 12, the inclined-plane, 13, the plane.
Embodiment
Embodiment one as shown in Figure 1, up-sealed downstream sealed valve comprises valve body 1, is contained in the valve gap 4 at valve body 1 top, is contained in the spool 2 of valve body 1 inside, it is inner and connect the valve rod 6 of spool 2 to be contained in valve gap 4, is contained in the handwheel 5 on top on the valve rod 6.The inwall of valve gap 4 has a conical cavity 3, and a cone 7 that cooperates with conical cavity 3 is arranged at the bottom of valve rod 6.Conical cavity 3 and cone 7 and valve gap 4 and valve rod 6 consubstantialities, metalwork is to metalwork.Outside thread 8 is arranged at the bottom of valve rod 6, connects with the internal thread of spool 2.The conical surface and plane double seal have been formed.
Embodiment two shown in accompanying drawing 2 and 3, valve rod 6 has cone edge cover 9, and the conical cavity 3 of valve gap 4 does not have the edge cover, and the internal thread 10 of valve rod 6 connects with the outside thread of spool 2.Cone edge cover 9 is soft seals, and conical cavity 3 is a metalwork.Inclined-plane 12 and plane 13 are arranged at the top of conical cavity 3.After in valve rod 6 is packed valve gap 4 into, soft seal cone edge cover 9 just closely contacts with interior inclined-plane 12, plane 13 and the conical surface of conical cavity 3, has formed the conical surface, plane and inclined-plane triple seal.
Embodiment three shown in attached Figure 4 and 5, the cone 7 of valve rod 6 does not have the edge cover, and valve gap 4 has conical cavity edge cover 11, and metalwork is to metalwork.The internal thread 10 of valve rod 6 connects with the outside thread of spool 2.The conical surface and plane double seal have been formed.
Embodiment four shown in accompanying drawing 6 and 7, valve rod 6 has cone edge cover 9, and valve gap 4 has conical cavity edge cover 11, and metalwork is to soft seal.The internal thread 10 of valve rod 6 connects with the outside thread of spool 2.The conical surface and plane double seal have been formed.
Claims (4)
1, a kind of up-sealed downstream sealed valve, comprise valve body (1), be contained in the valve gap (4) at valve body (1) top, be contained in the inner spool (2) of valve body (1), it is inner and connect the valve rod (6) of spool (2) to be contained in valve gap (4), be contained in valve rod (6) and go up the handwheel (5) on top, it is characterized in that the inwall of valve gap (4) has a conical cavity (3), a cone (7) that cooperates with conical cavity (3) is arranged at the bottom of valve rod (6).
2, by the described up-sealed downstream sealed valve of claim 1, it is characterized in that conical cavity (3) and cone (7) can with valve gap (4) and valve rod (6) consubstantiality, also can make conical cavity edge cover (11) and cone respectively and inlay and overlap (9).
3, by claim 1 or 2 described up-sealed downstream sealed valves, it is characterized in that conical cavity (3) and cone (7) can metalwork to metalwork, also can metalwork to soft seal.
4, by claim 1 or 2 or 3 described up-sealed downstream sealed valves, it is characterized in that internal thread (10) or outside thread (8) are arranged at the bottom of valve rod (6), with the outside thread or the screw-internal thread fit of spool (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01122771 CN1399086A (en) | 2001-07-22 | 2001-07-22 | Up-sealed downstream sealed valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01122771 CN1399086A (en) | 2001-07-22 | 2001-07-22 | Up-sealed downstream sealed valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1399086A true CN1399086A (en) | 2003-02-26 |
Family
ID=4664889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01122771 Pending CN1399086A (en) | 2001-07-22 | 2001-07-22 | Up-sealed downstream sealed valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1399086A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485308A (en) * | 2015-12-29 | 2016-04-13 | 武汉正通传动技术有限公司 | Reamed hole bolt provided with outer ring |
| CN110094528A (en) * | 2019-06-13 | 2019-08-06 | 云南煤化集团工程技术有限公司 | A kind of open and close valve for gasification of coal lock slag lock |
| CN113324047A (en) * | 2021-06-04 | 2021-08-31 | 郑州厨盾消防科技有限公司 | Kitchen gas valve and kitchen gas cut-off control system |
-
2001
- 2001-07-22 CN CN 01122771 patent/CN1399086A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485308A (en) * | 2015-12-29 | 2016-04-13 | 武汉正通传动技术有限公司 | Reamed hole bolt provided with outer ring |
| CN110094528A (en) * | 2019-06-13 | 2019-08-06 | 云南煤化集团工程技术有限公司 | A kind of open and close valve for gasification of coal lock slag lock |
| CN113324047A (en) * | 2021-06-04 | 2021-08-31 | 郑州厨盾消防科技有限公司 | Kitchen gas valve and kitchen gas cut-off control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |