CN203548949U - Pressing cap type needle valve - Google Patents
Pressing cap type needle valve Download PDFInfo
- Publication number
- CN203548949U CN203548949U CN201320701169.0U CN201320701169U CN203548949U CN 203548949 U CN203548949 U CN 203548949U CN 201320701169 U CN201320701169 U CN 201320701169U CN 203548949 U CN203548949 U CN 203548949U
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- CN
- China
- Prior art keywords
- valve
- valve rod
- sealing gasket
- gland
- 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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Abstract
The utility model discloses a pressing cap type needle valve which comprises a valve body, a valve rod, a valve rod nut, a pressing sleeve, a valve seat and a sealing gasket. A valve cavity is formed in the valve body. The valve rod is a needle valve body, and the valve rod is arranged in the valve cavity of the valve body. The valve seat is an O-shaped valve seat, and the valve seat is arranged on the valve rod in a sleeved mode and is arranged at the bottom of the valve cavity of the valve body. The sealing gasket is arranged on the outer side of the valve seat in the valve cavity. The pressing sleeve is arranged on the valve rod in a sleeve mode and is arranged on the outer side of the sealing gasket, and a protruded step is arranged on the upper portion of the pressing sleeve. The valve rod nut is arranged on the valve rod in a sleeved mode and is in threaded connection with the valve body, an inner step is arranged in the valve rod nut, and the inner step and the step of the pressing sleeve are matched to be in sealing arrangement. The pressing cap type valve rod nut is arranged to be matched with the pressing sleeve, so that the effects of compression resistance and sealing of products are increased. The polytetrafluoroethylene sealing gasket can better guarantee the sealing performance and the corrosion resistance, and the valve seat can well achieve the supporting and protecting effect on the valve rod.
Description
Technical field
The utility model relates to a kind of needle type valve, relates in particular to a kind of needle type valve with pressure cap.
Background technique
Industrial at metering valve, pressure bearing and seal performance on the project organization of metering valve is the crucial factor of test product performance, DeGrain is pressed in the leakage that most metering valve occurs in little pressure test, but under the working environment of some high pressures, can often go wrong, first be badly in need of a kind of can under high pressure effectively control and Lou press the metering valve product that guarantees sealing.
Model utility content
The utility model, for the deficiencies in the prior art, provides a kind of rational in infrastructure, and technique is simple, the pressure cap formula needle type valve that anti-pressure ability is strong.
The utility model is realized by following scheme:
A gland formula needle type valve, comprises valve body, valve rod, and Stem Mut, gland, valve seat and sealing gasket, be provided with valve pocket in described valve body; Described valve rod is needle type valve, and valve rod is arranged in valve body valve pocket; Described valve seat is O type valve seat, and valve seat is sheathed on valve rod and is arranged at valve body valve pocket bottom; Described sealing gasket is arranged at valve seat outside in valve pocket; Described gland is sheathed on valve rod and is arranged at sealing gasket outside, and gland top is provided with outstanding step; Described Stem Mut is sheathed on valve rod and with valve body and is threaded connection, and is provided with interior step in Stem Mut, and interior step and gland step fitted seal arrange.
Also comprise handwheel, handwheel sleeve is located on valve rod and with Stem Mut and is threaded, and on handwheel sidewall, is provided with Cock screw, and the mouth of carving of Cock screw and valve stem tip setting is equipped with.
Described sealing gasket is polytetrafluoroethylene sealing gasket.
The beneficial effect compared with prior art having is: pressure cap formula Stem Mut and gland are equipped with, and has increased the compressive sealed effect of product; Polytetrafluoroethylene sealing gasket can better guarantee sealability and corrosion resistance; Valve seat can well be accomplished the support of valve rod and protective action.
Accompanying drawing explanation
Fig. 1 is described pressure cap formula needle type valve structural representation.
Wherein: 1, valve body; 2, valve rod; 3, valve point; 4, valve seat; 5, sealing gasket; 6, gland; 7, Stem Mut; 8, handwheel; 9, Cock screw.
Embodiment
As shown be a kind of gland formula needle type valve, comprise valve body 1, valve rod 2, Stem Mut 7, gland 6, valve seat 4 and sealing gasket 5, in described valve body, be provided with valve pocket, valve rod is needle type valve, valve rod is arranged in valve body valve pocket, valve seat is O type valve seat, valve seat is sheathed on valve rod and is arranged at valve body valve pocket bottom, valve rod is supported and protection, sealing gasket is O grommet type seal, sealing gasket is the sealing gasket that polytetrafluoroethylmaterial material is made, sealing gasket is set on valve rod and is arranged at valve seat outside, gland is sheathed on valve rod, gland is partly arranged in valve pocket, gland top is provided with outstanding step, Stem Mut is sheathed on valve rod and with valve body and is threaded connection, in Stem Mut, be provided with interior step, interior step and gland step fitted seal arrange, handwheel 8 is sheathed on valve stem tip and is threaded with Stem Mut, on handwheel sidewall, be provided with Cock screw 9, the mouth of carving of Cock screw and valve stem tip setting is equipped with, play fixedly stem position effect.
Claims (3)
1. a gland formula needle type valve, is characterized in that: comprise valve body, and valve rod, Stem Mut, gland, valve seat and sealing gasket, be provided with valve pocket in described valve body; Described valve rod is needle type valve, and valve rod is arranged in valve body valve pocket; Described valve seat is O type valve seat, and valve seat is sheathed on valve rod and is arranged at valve body valve pocket bottom; Described sealing gasket is arranged at valve seat outside in valve pocket; Described gland is sheathed on valve rod and is arranged at sealing gasket outside, and gland top is provided with outstanding step; Described Stem Mut is sheathed on valve rod and with valve body and is threaded connection, and is provided with interior step in Stem Mut, and interior step and gland step fitted seal arrange.
2. gland formula needle type valve as claimed in claim 1, is characterized in that: also comprising that handwheel, handwheel sleeve are located on valve rod and with Stem Mut is threaded, and on handwheel sidewall, is provided with Cock screw, and carving of Cock screw and valve stem tip setting mouthful is equipped with.
3. gland formula needle type valve as claimed in claim 2, is characterized in that: described sealing gasket is polytetrafluoroethylene sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701169.0U CN203548949U (en) | 2013-11-07 | 2013-11-07 | Pressing cap type needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701169.0U CN203548949U (en) | 2013-11-07 | 2013-11-07 | Pressing cap type needle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548949U true CN203548949U (en) | 2014-04-16 |
Family
ID=50467069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320701169.0U Expired - Fee Related CN203548949U (en) | 2013-11-07 | 2013-11-07 | Pressing cap type needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203548949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673868A (en) * | 2016-04-14 | 2016-06-15 | 无锡市东液机械制造有限公司 | Valve body structure of oil drainage valve |
-
2013
- 2013-11-07 CN CN201320701169.0U patent/CN203548949U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673868A (en) * | 2016-04-14 | 2016-06-15 | 无锡市东液机械制造有限公司 | Valve body structure of oil drainage valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20171107 |