CN1092307C - Improved leakproof durable stop valve structure - Google Patents
Improved leakproof durable stop valve structure Download PDFInfo
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- CN1092307C CN1092307C CN99113900A CN99113900A CN1092307C CN 1092307 C CN1092307 C CN 1092307C CN 99113900 A CN99113900 A CN 99113900A CN 99113900 A CN99113900 A CN 99113900A CN 1092307 C CN1092307 C CN 1092307C
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- spool
- valve seat
- lining
- rounding
- valve
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Abstract
The present invention relates to an improved anti-leakage and durable stop valve structure which comprises a valve core and a valve seat, wherein at least one of the valve core and the valve seat is bushed with a flexible seal bush made of sealing material. The present invention is characterized in that the surface in the position where the valve core and the valve seat are mutually contacted aslant is provided with a rounding off convex surface. The contact surface of the valve core (or a bush thereof) and the valve seat (or a bush thereof) is in the state of inclined smooth contact, and thus, the contact surface is small and is not easy to damage. Hard impurities in water or other liquid media are not easy to clamp on an inclined sealing surface, and even when abrasions are generated, the valve core can shift downwards along the inclined contact surface to male the valve core and the valve seat always keep an excellent sealing state.
Description
The present invention relates to a kind of stop valve structure.
Valve on industry and domestic use of water pipeline generally all adopts stop valve at present, comprise the water tap that generally uses in the family, sealing surface between its spool and the valve seat has two kinds of plane and the conical surfaces, wherein conical surface seal is owing to reduced sealing contact surface, thereby under same active force effect, active force on the unit area increases, sealability is also better, and just in case have hard material also to be difficult for being stuck on the sealing surface in the fluid, can therefore not damage sealing surface, but this class stop valve length service time one is leaked easily, its reason is that valve seat and spool generally all adopt Cuprum alloy, because the both is a hard material, its sealing surface is wearing and tearing or damage easily, finally causes sealing effect bad; On this problem, the flat closed type stop valve can solve with flexible gasket by directly serving as a contrast between spool and valve seat, as the disclosed structure that comes to this of Chinese utility model patent 93206030.7 " leakproof stop valve ", yet conical surface seal type stop valve is because of the direct lining flexible gasket of its structural limitations, application number proposed for this reason in person be 98110920.9 " a kind of anti-leakage durable structure of cut-off valve ", its scheme is that the surface of contact between spool and the valve seat is the conical surface, have at least a lining that the flexible sealing lining of being made by sealing material is arranged in described spool and the valve seat, practice shows that it is that the line way of contact (is not real " line " that this scheme is leveled off the face way of contact, but surface of contact is minimum) and reduce sealing surface, add the flexible sealing lining, really can reach the purpose of durable leakproof, yet because contacting between spool and the valve seat is level and smooth not enough, surface of contact is more easy to wear comparatively speaking in this scheme.
Purpose of the present invention provides the contacting point between a kind of spool and the valve seat more nonabradable anti-leakage durable structure of cut-off valve with regard to being at above-mentioned prior art present situation.
The object of the present invention is achieved like this: a kind of stop valve structure, comprise spool and valve seat, have at least one to be provided with lining among both, this lining is the flexible liner of being made by sealing material, and both have at least one to be the convex surface of rounding off on the surface of mutual join on skew synapsis, it is characterized in that described seal cartridge has recessed position, corresponding with described rounding off convex surface, both coincide mutually.
Spool of the present invention (or its lining) is oblique level and smooth the contact with the surface of contact of valve seat (or its lining), thereby surface of contact is both little not fragile again, rigid impurity in water or other liquid mediums is difficult for being stuck on the sealing surface of inclination, even if just in case there is rigid impurity to block, when opening valve at every turn, spool is suspended on the valve seat top, water or other liquid mediums that flows also can wash away the sealing contact surface of valve seat and spool totally fast, feasible throttle down once more, when spool contacts with valve seat, no longer having rigid impurity blocks and damages sealing surface, even and if the existence of flexible sealing lining makes when wearing and tearing to some extent because of long-term use, spool also can be along and then displacement downwards of the surface of contact that tilts, make and remain good sealing state between spool and the valve seat, therefore the present invention has inherited the durable leakproof effect of patent application formerly, and the rounding off curved surface more makes sealing surface not easy to wear, thereby further prolong working life again.
Description of drawings.
Fig. 1 is the structure cross-sectional schematic of the embodiment of the invention one.
Fig. 2 is the structure cross-sectional schematic of the embodiment of the invention two.
Fig. 3 is the structure cross-sectional schematic of the embodiment of the invention three.
Fig. 4 is the structure cross-sectional schematic of the embodiment of the invention four.
Fig. 5 is the structure cross-sectional schematic of the embodiment of the invention five.
Fig. 6 is the structure cross-sectional schematic of the embodiment of the invention six.
Fig. 7 is the structure cross-sectional schematic of the embodiment of the invention seven.
Fig. 8 is the structure cross-sectional schematic of the embodiment of the invention eight.
Fig. 9 is the structure cross-sectional schematic of the embodiment of the invention nine.
Figure 10 is the structure cross-sectional schematic of the embodiment of the invention ten.
Figure 11 is the structure cross-sectional schematic of the embodiment of the invention 11.
Figure 12 is the structure cross-sectional schematic of the embodiment of the invention 12.
Figure 13 is the structure cross-sectional schematic of the embodiment of the invention 13.
Figure 14 is the structure cross-sectional schematic of the embodiment of the invention 14.
Figure 15 is the structure cross-sectional schematic of the embodiment of the invention 15.
Figure 16 is the structure cross-sectional schematic of the embodiment of the invention 16.
Figure 17 is the structure cross-sectional schematic of the embodiment of the invention 17.
Figure 18 is the structure cross-sectional schematic of the embodiment of the invention 18.
Figure 19 is the embodiment of the invention one a closed condition structure cross-sectional schematic in use.
Figure 20 is the embodiment of the invention one an opening state structure cross-sectional schematic in use.
Embodiment is described in further detail the present invention below in conjunction with accompanying drawing.
Embodiment one, and as shown in Figure 1, for the present invention is applied to an embodiment of water tap, 1 is handwheel among the figure, and 2 is gland, and 3 is filler, and 4 is valve gap, and 5 is valve rod, and 6 is spool, and 7 is the seal spool lining, and 8 is valve seat, and 9 is valve body; Valve rod 5 ends are spool 6, and both intersections have a step with the seal cartridge 7 of setting sleeve at spool 6 outer walls, and spool 6 and lining 7 thereof are the conical surface at the surface of contact place with valve seat 8, and the end face of valve seat 8 is an arc surface, and both are oblique tangent when contact.
Embodiment two, as shown in Figure 2, disclose another kind of valve seat 8 end shapes, and end face is the semicircle cambered surface.
Embodiment three, as shown in Figure 3, disclose another valve seat 8 end shape, the end is oblique kink shape, but end face still is arc surface, and this embodiment's processing is complicated slightly, but because the arc surface end face of valve seat 8 faces the conical surface of seal spool lining 7, thereby sealing effect is better.
Embodiment four, as shown in Figure 4, disclose another valve seat 8 end shape, the rectangular kink shape in end, but end face still is arc surface, and this structure is more suitable for being used for bigger spool.
Embodiment five, as shown in Figure 5, be that with embodiment one difference spool 6 self there is no conical outer surface, and the flexible sealing lining 7 that is enclosed within outside it are the conical surface at the surface of contact place with valve seat 8.
Embodiment six, and is similar with embodiment five as shown in Figure 6, and spool 6 is certainly as square, and the flexible sealing lining 7 that is enclosed within outside it is sphere at the surface of contact place with valve seat 8.
Embodiment seven, as shown in Figure 7, are one to be applied to the embodiment of common pipe stop valve, and its spool 6 and seal cartridge 7 thereof are identical with embodiment one with the structure of valve seat 8,1 is handwheel among the figure, and 2 is gland, and 3 is filler, and 4 is valve gap, 5 is valve rod, and 9 is valve body, and 11 are back of the body cap.
Embodiment eight, as shown in Figure 8, be with embodiment one difference, spool 6 outer not seal with buss linings, valve seat 8 outer then linings have a valve base sealing lining 10, and the end face of valve seat 8 self is not arc surface, but seal cartridge 10 end faces of institute's lining are arc surface, and it also is oblique tangent in the contacting point with the spool 6 that is the conical surface.
Embodiment nine, as shown in Figure 9, are that with embodiment one and embodiment's eight difference spool 6 and valve seat 8 lining respectively have seal cartridge 7 and seal cartridge 10, in actual applications, with the durable sealing effect the best of this embodiment, and make also comparatively convenient.
Embodiment ten, as shown in figure 10, compare with embodiment four, disclose the spool 6 of another kind of shape, and promptly spool 6 whole heads are sphere, and its outer lining is with the seal cartridge 7 that is sphere equally.
Embodiment 12, as shown in figure 12, are that with embodiment ten difference except the end shape of valve seat 8 was different, spool 6 and seal cartridge 7 thereof only were sphere at the surface of contact place with valve seat 8, and the head end of spool 6 is the plane.
Embodiment 13, and as shown in figure 13, the shape of spool 6 and the embodiment of front are all different, and the head indent is lined with a seal cartridge 7 that is the inner concave shape conical surface in it, and it is oblique tangent when contacting with the valve seat 8 that end face is arc surface.
Embodiment 14, and is different with the embodiment of front as shown in figure 14, spool 6 end indents, and end face is arc surface, and it is oblique tangent when contacting with the valve base sealing lining 10 that an inner concave shape conical surface is arranged.
Embodiment 15, as shown in figure 15, are one to be applied to the embodiment of common pipe stop valve, and its spool 6 is identical with embodiment 14 with the structure of valve base sealing lining 10.
Embodiment 16, as shown in figure 16, be that with embodiment 15 difference spool 6 end shape sections are " eight " font, but its end face still are arc surface.
Embodiment 17, as shown in figure 17, compare with embodiment 15 and embodiment 16, disclose another spool 6 end shape, and section is " one " font, but its end face still is arc surface.
Embodiment 18, as shown in figure 18, are that with embodiment 15 difference spool 6 is sphere at the surface of contact place with valve base sealing lining 10, and it is oblique tangent when contacting with the inner concave shape conical surface of valve base sealing lining 10.
The not exhaustive enforcement situation of the present invention of above-mentioned these embodiments, the embodiment that other can also be arranged, but change ten thousand times without leaving the original aim or stand: have at least a lining that the flexible sealing lining of being made by sealing material is arranged in spool and the valve seat, both have at least one to be the convex surface of rounding off on the surface of mutual join on skew synapsis.
Here of particular note, owing to be separated with a flexible sealing lining at least between spool and the valve pocket, thereby as seen from above-mentioned different embodiment, here " surface that is in contact with one another " is meant one of following three kinds of situations: the lining and the valve seat of spool are in contact with one another, the lining of spool and valve seat is in contact with one another, the lining of spool and the lining of valve seat are in contact with one another, having a surface in these " surfaces that are in contact with one another " at least is the convex surface of rounding off, thereby its outer spool of flexible sealing lining or convex surface that valve seat itself might not have rounding off of being with.
Need to prove in addition, although feature structure of the present invention makes that the sealing surface of spool and valve seat is not easy to wear, but when valve uses, flexible sealing lining deformation to some extent on spool or the valve seat, yet because this deformation is caused by the spool of correspondence or valve seat just, thereby when being in closed condition, this deformation position still can coincide with corresponding spool or valve seat location, can't influence sealing effect.With embodiment one is example, as Figure 19, shown in Figure 20, in use, former seal spool lining forms a recessed annulus that is complementary with the valve seat end face being with contact surface of valve seat place on the outer surface of the conical surface, at this moment, when valve is in closed condition, the surface of contact of seal spool lining and valve seat is no longer tangent, but this recessed annulus and valve seat end face match, and still has good sealing effect, other embodiments also have similar situation, repeat no more.
In sum; structure of the present invention can be used to comprise the various stop valves of water tap; its feature structure is spool and the valve seat in the valve body; all can adopt existing various structure as for parts such as handwheel, valve gaps; their change does not influence flesh and blood of the present invention, within protection scope of the present invention yet.
Claims (10)
1. stop valve structure, comprise spool and valve seat, have at least one to be provided with lining among both, this lining is the flexible liner of being made by sealing material, and both have at least one to be the convex surface of rounding off on the surface of mutual join on skew synapsis, it is characterized in that described seal cartridge has recessed position, corresponding with described rounding off convex surface, both coincide mutually.
2. stop valve structure as claimed in claim 1 is characterized in that described valve seat end face is the convex surface of rounding off, and spool then is provided with has corresponding recessed seal cartridge.
3. stop valve structure as claimed in claim 1 is characterized in that described spool end is the convex surface of rounding off, and valve seat then is provided with has corresponding recessed seal cartridge.
4. stop valve structure as claimed in claim 1 is characterized in that described valve seat is provided with the seal cartridge of the convex surface with rounding off, and spool then is provided with has corresponding recessed seal cartridge.
5. stop valve structure as claimed in claim 1 is characterized in that described spool is provided with the seal cartridge of the convex surface with rounding off, and valve seat then is provided with has corresponding recessed seal cartridge.
6. stop valve structure, comprise spool and valve seat, both are equipped with a lining, this lining is the flexible liner of being made by sealing material, it is characterized in that this two seal cartridge has at least one to be the convex surface of rounding off on the surface of mutual join on skew synapsis, and oblique tangent when contacting with the surface of another seal cartridge.
7. stop valve structure as claimed in claim 6 is characterized in that described valve base sealing bush end face is the convex surface of rounding off, and is oblique tangent when contacting with the seal cartridge of spool.
8. stop valve structure as claimed in claim 7 is characterized in that described seal spool lining is being the curved surface of the conical surface or rounding off with valve base sealing bush end face contacting point.
9. stop valve structure as claimed in claim 6 is characterized in that described seal spool bush end face is the convex surface of rounding off, and is oblique tangent when contacting with the seal cartridge of valve seat.
10. stop valve structure as claimed in claim 9 is characterized in that described valve base sealing lining is being the curved surface of the conical surface or rounding off with seal spool bush end face contacting point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99113900A CN1092307C (en) | 1999-07-18 | 1999-07-18 | Improved leakproof durable stop valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99113900A CN1092307C (en) | 1999-07-18 | 1999-07-18 | Improved leakproof durable stop valve structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1241692A CN1241692A (en) | 2000-01-19 |
| CN1092307C true CN1092307C (en) | 2002-10-09 |
Family
ID=5277040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99113900A Expired - Fee Related CN1092307C (en) | 1999-07-18 | 1999-07-18 | Improved leakproof durable stop valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1092307C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819314A (en) * | 2015-05-23 | 2015-08-05 | 江苏江华阀业有限公司 | Special-purpose valve for eakless taper arc surface sealed wet chlorine |
| WO2017000209A1 (en) * | 2015-06-30 | 2017-01-05 | Honeywell International Inc. | Rod guide assembly and valve |
| CN110303182B (en) * | 2019-06-17 | 2021-05-11 | 湖北三江航天险峰电子信息有限公司 | Method for improving sealing performance of electromagnetic pneumatic valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2311009A (en) * | 1938-04-18 | 1943-02-16 | Kenneth M Urquhart | Double seated valve |
| US3232314A (en) * | 1961-12-26 | 1966-02-01 | Scott Aviation Corp | Relief valve |
| GB1271696A (en) * | 1968-07-31 | 1972-04-26 | Nupro Co | Improvements in valves for fluids |
| CN2387329Y (en) * | 1999-07-18 | 2000-07-12 | 陈西火 | Improved anti-leakage, durable stop valve structure |
-
1999
- 1999-07-18 CN CN99113900A patent/CN1092307C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2311009A (en) * | 1938-04-18 | 1943-02-16 | Kenneth M Urquhart | Double seated valve |
| US3232314A (en) * | 1961-12-26 | 1966-02-01 | Scott Aviation Corp | Relief valve |
| GB1271696A (en) * | 1968-07-31 | 1972-04-26 | Nupro Co | Improvements in valves for fluids |
| CN2387329Y (en) * | 1999-07-18 | 2000-07-12 | 陈西火 | Improved anti-leakage, durable stop valve structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1241692A (en) | 2000-01-19 |
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Legal Events
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| C10 | Entry into substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |