CN201593614U - High-pressure self-sealing packing shutoff valve - Google Patents
High-pressure self-sealing packing shutoff valve Download PDFInfo
- Publication number
- CN201593614U CN201593614U CN2010200496339U CN201020049633U CN201593614U CN 201593614 U CN201593614 U CN 201593614U CN 2010200496339 U CN2010200496339 U CN 2010200496339U CN 201020049633 U CN201020049633 U CN 201020049633U CN 201593614 U CN201593614 U CN 201593614U
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- valve
- filler
- seal seat
- sealing
- valve rod
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- Expired - Fee Related
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Abstract
The utility model relates to a high-pressure self-sealing packing shutoff valve comprising a valve body, a valve clack, a valve rod, a valve cover, a valve-stem nut, a transmission hand wheel, a sealing element and an installation part, wherein the valve rod and the valve cover adopts the self-sealing packing device for sealing; the self-sealing packing device consists of a lower seal seat, a compression ring, a filler, an upper seal seat and a bellevill spring; the filler is installed in the upper plane of the compression ring; the compression ring is installed between the valve rod and the valve cover through the lower seal seat; the lower seal seat is installed in the valve cover through threads; the upper part of the filler is provided with an outer taper surface which is contacted with the inner taper surface of the upper seal seat in a matching way; and the bellevill spring is arranged between the upper plane of the upper seal seat and the valve cover. After the filler is abraded, the lower seal seat moves upwards in the screw-thread fit clearance range under the medium pressure, simultaneously, the downward thrust of the bellevill spring automatically compensates the abrasion of the filler, and the valve has good sealing performance and is especially applicable to the high-pressure medium working condition.
Description
Technical field
The utility model relates to a kind of valve, particularly about a kind of stop valve.
Background technique
Stop valve generally is made up of valve body, flap, valve rod, valve gap, Stem Mut, transmission handwheel and Sealing and assembling set, between valve rod and the valve gap by packing box seal, its subject matter is that stuffing box is easy to wear in the valve rod opening-closing process, makes between valve rod and the valve gap to leak.
Summary of the invention
The purpose of this utility model is the problem that exists at prior art, and a kind of high pressure selfsealings filler stop valve of good seal performance is provided.
The technical solution of the utility model comprises valve body, flap, valve rod, valve gap, Stem Mut, transmission handwheel and Sealing and assembling set are formed, mainly be to adopt the sealing of selfsealings filler device between valve rod and the valve gap, this selfsealings filler device is by bottom sealing socket, pressure ring, filler, upper seal support, the butterfly spring is formed, filler is installed on the pressure ring in the plane, pressure ring is installed between valve rod and the valve gap by bottom sealing socket, bottom sealing socket is installed in the valve gap by screw thread, filler top has the external conical shape face, this external conical shape face contacts with the inner conical face cooperation of upper seal support, is provided with the butterfly spring between the last plane of upper seal support and the valve gap.
In above technological scheme, the lower end surface of bottom sealing socket has the horn mouth shape.
The utility model compared with prior art beneficial effect is to adopt the sealing of selfsealings filler device between valve rod and valve gap, after filler is frayed, bottom sealing socket is upwards moving in its Screw Thread Fit Clearance scope under the pressure medium effect, the downward thrust of while butterfly spring, automatically the wearing and tearing of compensation filler, its good seal performance.
Description of drawings
Fig. 1 is a structure sectional view of the present utility model.
Embodiment
High pressure selfsealings filler stop valve as shown in Figure 1 comprises valve body 1, flap 2, valve rod 5, valve gap 14, Stem Mut 15, transmission handwheel 17 and Sealing and assembling set composition.Covering 4 by divided ring 3 and flap between valve rod 5 and the flap 2 fixedlys connected, valve body 1 is fixedlyed connected with sieve female 10 by stud bolt 9 with valve gap 14, flange gasket 7 in being provided with between the two, Stem Mut 15 is fixedly mounted on the valve gap 14 by Cock screw 16, and transmission handwheel 17 is installed on the valve rod 5 by plain cushion 18, hexagon nut 19.Adopt the sealing of selfsealings filler device between valve rod 5 and the valve gap 14, this selfsealings filler device is made up of bottom sealing socket 6, pressure ring 8, filler 11, upper seal support 12, butterfly spring 13, filler 11 is installed on the pressure ring 8 in the plane, pressure ring 8 is installed between valve rod 5 and the valve gap 14 by bottom sealing socket 6, bottom sealing socket 6 is installed in the valve gap 14 by screw thread, its lower end surface has the horn mouth shape, pressure action of medium is upwards passed bottom sealing socket 6 in the Screw Thread Fit Clearance scope on the horn mouth end face of bottom sealing socket 6 in the valve pocket.Filler 11 tops have the external conical shape face, and this external conical shape face contacts with the inner conical face cooperation of upper seal support 12, holds sealing tightly to valve rod 5 when making filler 11 pressurizeds.Be provided with butterfly spring 13 between the last plane of upper seal support 12 and the valve gap, when filler 11 is frayed, compress the sealing between itself and the valve rod 5 automatically.
Claims (2)
1. high pressure selfsealings filler stop valve, comprise valve body (1), flap (2), valve rod (5), valve gap (14), Stem Mut (15), transmission handwheel (17) and Sealing and assembling set are formed, it is characterized in that adopting between valve rod (5) and the valve gap (14) sealing of selfsealings filler device, this selfsealings filler device is by bottom sealing socket (6), pressure ring (8), filler (11), upper seal support (12), butterfly spring (13) is formed, filler (11) is installed in pressure ring (8) and goes up in the plane, pressure ring (8) is installed between valve rod (5) and the valve gap (14) by bottom sealing socket (6), bottom sealing socket (6) is installed in the valve gap (14) by screw thread, filler (11) top has the external conical shape face, this external conical shape face contacts with the inner conical face cooperation of upper seal support (12), is provided with butterfly spring (13) between the last plane of upper seal support (12) and the valve gap (14).
2. high pressure selfsealings filler stop valve according to claim 1 is characterized in that the lower end surface of bottom sealing socket (6) has the horn mouth shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200496339U CN201593614U (en) | 2010-01-08 | 2010-01-08 | High-pressure self-sealing packing shutoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200496339U CN201593614U (en) | 2010-01-08 | 2010-01-08 | High-pressure self-sealing packing shutoff valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201593614U true CN201593614U (en) | 2010-09-29 |
Family
ID=42775681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200496339U Expired - Fee Related CN201593614U (en) | 2010-01-08 | 2010-01-08 | High-pressure self-sealing packing shutoff valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201593614U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748484A (en) * | 2012-07-23 | 2012-10-24 | 岳阳筑盛阀门管道有限责任公司 | Angle type drain valve |
| CN103267166A (en) * | 2013-05-23 | 2013-08-28 | 中亚阀门有限公司 | Piston-type zero leakage gate valve |
| CN104913109A (en) * | 2015-05-25 | 2015-09-16 | 蚌埠南自仪表有限公司 | One-way valve with elastic sealing structure |
| CN106989190A (en) * | 2016-01-21 | 2017-07-28 | 浙江加耐特阀杆有限公司 | A kind of processing technology of valve rod and the valve rod |
-
2010
- 2010-01-08 CN CN2010200496339U patent/CN201593614U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748484A (en) * | 2012-07-23 | 2012-10-24 | 岳阳筑盛阀门管道有限责任公司 | Angle type drain valve |
| CN103267166A (en) * | 2013-05-23 | 2013-08-28 | 中亚阀门有限公司 | Piston-type zero leakage gate valve |
| CN103267166B (en) * | 2013-05-23 | 2015-10-21 | 中亚阀门有限公司 | Piston-type zero leakage gate valve |
| CN104913109A (en) * | 2015-05-25 | 2015-09-16 | 蚌埠南自仪表有限公司 | One-way valve with elastic sealing structure |
| CN106989190A (en) * | 2016-01-21 | 2017-07-28 | 浙江加耐特阀杆有限公司 | A kind of processing technology of valve rod and the valve rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20150108 |
|
| EXPY | Termination of patent right or utility model |