CN105221831A - High airtight stopcock - Google Patents
High airtight stopcock Download PDFInfo
- Publication number
- CN105221831A CN105221831A CN201510746458.6A CN201510746458A CN105221831A CN 105221831 A CN105221831 A CN 105221831A CN 201510746458 A CN201510746458 A CN 201510746458A CN 105221831 A CN105221831 A CN 105221831A
- Authority
- CN
- China
- Prior art keywords
- sealing
- spool
- valve
- valve rod
- stopcock
- 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.)
- Granted
Links
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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
- F16K41/043—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing for spindles which only rotate, i.e. non-rising spindles
- F16K41/046—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing for spindles which only rotate, i.e. non-rising spindles for rotating 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
- 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
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
- F16K5/0257—Packings
- F16K5/0285—Packings spindle sealing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a kind of high airtight stopcock, the valve rod of stopcock is arranged with metal frame seal ring, described metal frame seal ring is positioned at the through hole of valve gap, metal frame seal ring comprises the framework of hard and soft Sealing, also be connected with downwards by the top briquetting that metal frame seal ring compresses above described valve gap, top briquetting compresses Sealing downwards.Sealing and valve rod, spool are completely cut off by metal framework, when valve rod rotates, Sealing can not wear and tear because of relative friction, effectively improves the working life of Sealing.
Description
Technical field
The present invention relates to five metals valve arrangement technical field, it is a kind of high airtight stopcock.
Background technique
At present, the structure of valve comprises valve body, is provided with valve pocket in valve body, is provided with spool in valve pocket, and spool is connected with valve rod.All various valve can be used in the every field such as agriculture, industrial.
But, sealing for valve also has different requirements, although existing valve has good sealing, but after long-time use, gap between spool and valve will constantly increase, thus liquid is overflowed from gap, the demand of people for the valve required compared with high leak tightness can not be met.
In existing stopcock, seal ring often adopts rubber material, because stopcock is used for the medium carrying oiliness, has certain corrosivity to rubber material, very easily there is aging, hardening phenomenon after the use long period of time of General Purpose Rubber seal ring, sealing effect is significantly reduced.
How to reduce the corrosion of oil medium to Sealing, and simplify the replacing problem demanding prompt solution especially of Sealing.
Summary of the invention
Goal of the invention of the present invention is the problem in order to solve the sealing of above-mentioned stopcock, a kind of high airtight stopcock is provided, effectively reduces oil medium to the corrosion of Sealing, and make the replacing of Sealing more easy, sealing effect is also fine, meets people for comparatively high leak tightness requirement.
In order to realize foregoing invention object, present invention employs following technological scheme:
A kind of high airtight stopcock, comprise valve body, spool, valve gap and valve rod, described spool is positioned at valve body, one end of spool and valve rod fixes, valve gap and valve body are connected by fastening piece and are fixed in valve body by spool, valve rod is arranged in the through hole at the middle part of valve gap, described valve rod is arranged with metal frame seal ring, described metal frame seal ring is positioned at the through hole of valve gap, metal frame seal ring comprises the framework of hard and soft Sealing, framework is Flange-shaped Parts, the cross section of framework is in " L " type, framework comprises barrel and diapire, described barrel invests stem exterior surface, described diapire conflict spool upper-end surface, described Sealing is between barrel and diapire, also be connected with downwards by the top briquetting that metal frame seal ring compresses above described valve gap, top briquetting compresses Sealing downwards, and valve rod is arranged in the middle part of the briquetting of top, soft Sealing is made up of modified silica-gel material, and described modified silica-gel is counted by weight and made by following component is blended: vinylsiloxane rubber 90-150, urethane rubber 20-30, acrylate rubber 30-55, ethylene propylene diene rubber 10-30, fume colloidal silica 18-23, diphenyl silanediol 2-6, Nano-meter SiO_2
210-20 and titanium dioxide 15-40.
Further, the upper-end surface of described spool is also provided with sealing fin, and the lower surface that valve gap contacts with spool upper-end surface is provided with seal groove, and described seal groove agrees with mutually with sealing fin, and seal groove is all rounded with sealing fin.
Further, described valve rod and spool are formed in one structure.
Further, described top briquetting is connected with valve gap by bolt or screw.
Compared with prior art, have employed the stopcock that the height of technique scheme is airtight, there is following beneficial effect:
One, the stopcock adopting height of the present invention airtight, the downward squeeze sealing member of top briquetting, Sealing is out of shape, and Sealing is completely closed by the through hole on valve gap under the effect of extruding force, effectively avoids oil medium to reveal, and improves sealing.
Two, the framework of metal frame seal ring effectively can reduce the corrosion dynamics of oil medium to Sealing, and protection Sealing, avoids bottom and the inwall of oil medium contact seals.
Secondly, framework can make Sealing be clamped in the inwall of valve gap through hole, and framework is made of metal, and the barrel of framework and valve stem contacts, diapire contacts with the upper-end surface of spool, avoids the contact of Sealing and valve rod, spool greatly, reduce wearing and tearing and corrode, extending the working life of Sealing.
Three, valve gap is connected with valve body by fastening piece, and the two is detachable, simplifies the maintenance of spool and the replacing of seal ring.
Four, soft Sealing is made up of modified silica-gel material, modified silica-gel has better mechanical property, not only increase sealability, and modified silica-gel oil resistance has had obvious lifting, effective reduction oil medium is to the corrosion of Sealing, therefore, soft Sealing sealing, stability and all improve working life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the high airtight stopcock of the present invention;
Fig. 2 is structural representation of the present invention;
Fig. 3 is sectional view of the present invention;
Fig. 4 is the partial enlarged drawing at A place in Fig. 3;
Fig. 5 is the structural representation of valve gap in the present invention;
Fig. 6 is the structural representation of metal frame seal ring in the present invention.
Reference character: 1, valve rod; 2, briquetting is pushed up; 3, valve gap; 31, seal groove; 4, spool; 41, fin is sealed; 5, valve body; 6, metal frame seal ring; 60, Sealing; 61, diapire; 62, barrel.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
Embodiment: a kind of high airtight stopcock as shown in Figures 1 to 3, is respectively valve rod 1, top briquetting 2, valve gap 3, spool 4 and valve body 5 from top to bottom.
The structure that valve body 5 and valve rod 1 are formed in one, the structural strength of the two is high, not easy-rupturing.
Valve rod 1 is arranged with metal frame seal ring 6, metal frame seal ring 6 is conflicted spool upper-end surface be embedded in the through hole of valve gap 3, metal frame seal ring 6 comprises: framework and Sealing 60, Sealing 60 is caulking gum, the cross section of framework is made up of Steel material in " L " type, framework comprises barrel 62 and diapire 61, and barrel 62 is sheathed on the outer wall of valve rod 1 in a tubular form, and diapire 61 is annular plane and spool upper-end surface of conflicting.
Top briquetting 2 compresses the Sealing 60 of metal frame seal ring 6 downwards, and Sealing 60 is deformed, and Sealing 60 closes the gap between valve gap 3 through hole and barrel 62, prevents oil medium from overflowing in through hole.
The effect of steel framework has 3:
Fixing 1., for Sealing 60, and keep the shape of Sealing 60.
2., reduce Sealing 60 and the area of contact of oil medium, reduce corrosion, reduce sclerosis and the deterioration phenomenon of caulking gum.
3., Sealing 60 is after by top, briquetting 2 compresses, and Sealing 60 and valve gap 3 through-hole wall rubs comparatively greatly, and the friction of the barrel 62 of framework, diapire 61 and valve rod 1 outer wall, spool upper-end surface is little, and framework is formed from steel, not easy to wear.Separated with valve rod 1 and spool by Sealing 60 by framework, avoid the contact of three, when user's rotation valve rod 1, valve rod 1, spool be contact seals 60 no longer, effectively can reduce wearing and tearing and the consumption of Sealing 60, extends the working life of Sealing 60.
The seal groove 31 above-mentioned spool sealed on fin 41 and valve gap 3 bottom surface matches, and the chimeric of the two can effectively intercept oil medium, prevents the outflow of oil medium, improves sealing.
Above-mentioned top briquetting 2 is connected with valve gap 3 by bolt or screw, and the dynamics that compresses of top briquetting 2 regulates by the screwing force of adjusting bolt or screw, and convenient to remove, realizes the Simple detachable of top briquetting 2.
Valve gap 3 is also adopt same fastening piece with the connection of valve body 5 simultaneously, therefore in maintenance man's dismounting with when changing spool, seal ring, operates comparatively simple and easy, convenient and swift.
Soft Sealing 60 is wherein made up of modified silica-gel material.
Modified silica-gel is made with the raw material components of ratio is blended by weight: vinylsiloxane rubber 90-150g, urethane rubber 20-30g, acrylate rubber 30-55g, ethylene propylene diene rubber 10-30g, fume colloidal silica 18-23g, diphenyl silanediol 2-6g, Nano-meter SiO_2
210-20g and titanium dioxide 15-40g, first carries out blended, then is prepared from by conventional method for preparing rubber, and urethane rubber, acrylate rubber, ethylene propylene diene rubber are the modifications as rubber-based, Nano-meter SiO_2
2carry out nano modification further, finally make the silica gel of modification have following mechanical property.
Refer to table 1:
Table 1: the mechanical property contrast table of the present invention's common silica gel on the modified silica-gel that seals and market
This modified silica-gel is highly suitable for making Sealing, and good sealing effect, steady quality, and cost of production does not increase how many, and adopt the compressive seal of this material, also obviously reduce oil medium to the corrosion of Sealing.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any reference character in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to mode of execution, but not each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technological scheme in each embodiment also through appropriately combined, can form other mode of executions that it will be appreciated by those skilled in the art that.
Claims (4)
1. one kind high airtight stopcock, comprise valve body (5), spool (4), valve gap (3) and valve rod (1), described spool (4) is positioned at valve body (5), spool (4) fixes with one end of valve rod (1), valve gap (3) and valve body (5) are connected by fastening piece and are fixed in valve body (5) by spool (4), valve rod (1) is arranged in the through hole at the middle part of valve gap (3), it is characterized in that:
Described valve rod (1) is arranged with metal frame seal ring (6), described metal frame seal ring (6) is positioned at the through hole of valve gap (3), metal frame seal ring (6) comprises framework and the soft Sealing (60) of hard, framework is Flange-shaped Parts, the cross section of framework is in " L " type, framework comprises barrel (62) and diapire (61), described barrel (62) invests valve rod (1) outer surface, described diapire (61) conflict spool (4) upper-end surface, described soft Sealing (60) is positioned between barrel (62) and diapire (61),
Described valve gap (3) top is also connected with the top briquetting (2) compressed by metal frame seal ring (6) downwards, top briquetting (2) compresses Sealing (60) downwards, and valve rod (1) is arranged in middle part, top briquetting (2);
Soft Sealing (60) is made up of modified silica-gel material, and described modified silica-gel is counted by weight and made by following component is blended: vinylsiloxane rubber 90-150, urethane rubber 20-30, acrylate rubber 30-55, ethylene propylene diene rubber 10-30, fume colloidal silica 18-23, diphenyl silanediol 2-6, Nano-meter SiO_2
210-20 and titanium dioxide 15-40.
2. the stopcock that height according to claim 1 is airtight, it is characterized in that: the upper-end surface of described spool (4) is also provided with sealing fin (41), the lower surface that valve gap (3) contacts with spool (4) upper-end surface is provided with seal groove (31), described seal groove (31) with sealing fin (41) agree with mutually, seal groove (31) and seal fin (41) all rounded.
3. the stopcock that height according to claim 1 and 2 is airtight, is characterized in that: described valve rod (1) and spool (4) are formed in one structure.
4. the stopcock that height according to claim 1 is airtight, is characterized in that: described top briquetting (2) is connected with valve gap (3) by bolt or screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510746458.6A CN105221831B (en) | 2015-11-06 | 2015-11-06 | High closed plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510746458.6A CN105221831B (en) | 2015-11-06 | 2015-11-06 | High closed plug valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105221831A true CN105221831A (en) | 2016-01-06 |
| CN105221831B CN105221831B (en) | 2017-08-08 |
Family
ID=54990967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510746458.6A Active CN105221831B (en) | 2015-11-06 | 2015-11-06 | High closed plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105221831B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1782478A (en) * | 2005-06-13 | 2006-06-07 | 江苏金石油气井口科技有限公司 | Self fastening metal seal device for valve rod |
| CN201310678Y (en) * | 2008-08-25 | 2009-09-16 | 浙江国泰密封材料股份有限公司 | Sealing ring for high-temperature high-pressure valves |
| CN101886719A (en) * | 2010-07-05 | 2010-11-17 | 曾沂水 | Elastic tube seal valve |
| CN102011877A (en) * | 2010-12-10 | 2011-04-13 | 陈沛 | Novel down-mounting ball valve |
| CN201973277U (en) * | 2010-12-10 | 2011-09-14 | 苏州科迪流体控制设备有限公司 | Plug valve structure with sealing bush |
| CN204025745U (en) * | 2014-08-11 | 2014-12-17 | 湖北裕兴机械有限公司 | Modified model three-flat ball valve |
-
2015
- 2015-11-06 CN CN201510746458.6A patent/CN105221831B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1782478A (en) * | 2005-06-13 | 2006-06-07 | 江苏金石油气井口科技有限公司 | Self fastening metal seal device for valve rod |
| CN201310678Y (en) * | 2008-08-25 | 2009-09-16 | 浙江国泰密封材料股份有限公司 | Sealing ring for high-temperature high-pressure valves |
| CN101886719A (en) * | 2010-07-05 | 2010-11-17 | 曾沂水 | Elastic tube seal valve |
| CN102011877A (en) * | 2010-12-10 | 2011-04-13 | 陈沛 | Novel down-mounting ball valve |
| CN201973277U (en) * | 2010-12-10 | 2011-09-14 | 苏州科迪流体控制设备有限公司 | Plug valve structure with sealing bush |
| CN204025745U (en) * | 2014-08-11 | 2014-12-17 | 湖北裕兴机械有限公司 | Modified model three-flat ball valve |
Non-Patent Citations (2)
| Title |
|---|
| 涂婷等: "硅橡胶的物理改性研究进展", 《弹性体》 * |
| 罗绍兵等: "硅橡胶的改性研究", 《中国胶黏剂》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105221831B (en) | 2017-08-08 |
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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 | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Rongwei Inventor after: Lu Jianming Inventor after: Ye Chunnian Inventor after: Ye Tingting Inventor before: Yu Chengpeng |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170706 Address after: Yongjia Dong'ou County of Wenzhou City, Zhejiang province 325000 Street five-star industrial zone Applicant after: FANGYUAN VALVE GROUP Co.,Ltd. Address before: Wencheng County of Wenzhou City, Zhejiang province 325300 Zhang Tai Xiang Xing Chuan Cun Applicant before: Yu Chengpeng |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Highly closed plug valve Effective date of registration: 20221215 Granted publication date: 20170808 Pledgee: Agricultural Bank of China Limited Yongjia County sub branch Pledgor: FANGYUAN VALVE GROUP Co.,Ltd. Registration number: Y2022330003682 |