CN205078822U - High inclosed plug valve - Google Patents
High inclosed plug valve Download PDFInfo
- Publication number
- CN205078822U CN205078822U CN201520881892.0U CN201520881892U CN205078822U CN 205078822 U CN205078822 U CN 205078822U CN 201520881892 U CN201520881892 U CN 201520881892U CN 205078822 U CN205078822 U CN 205078822U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing
- spool
- valve rod
- metal frame
- 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 high inclosed plug valve, the cover is equipped with metal frame sealing washer on the valve rod of plug valve, metal frame sealing washer is located the through -hole of valve gap, and metal frame sealing washer includes the frame of stereoplasm and soft sealing member, the valve gap top still is connected with puts up the roof pressure piece that the sealing washer compressed tightly with the metal downwards, and the roof pressure piece supports the densification sealing downwards. Completely cut off sealing member and valve rod, case through the metallic frame, when the valve rod rotated, wearing and tearing can not take place because of relative friction for the sealing member, effectively improved the life of sealing member.
Description
Technical field
The utility model relates to five metals valve arrangement technical field, and 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 rubber seal, sealing effect is significantly reduced.
How to reduce the corrosion of oil medium to Sealing, and the replacing replacing simplifying Sealing is problem demanding prompt solution.
Model utility content
Goal of the invention of the present invention is the problem in order to solve the sealing of above-mentioned stopcock, provides a kind of high airtight stopcock, and not only sealing effect is also fine for it, and the replacing of Sealing is more easy, meets people for comparatively high leak tightness requirement.
In order to realize foregoing invention object, the utility model have employed 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.
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 utility model 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.
Accompanying drawing explanation
Fig. 1 is the structural representation of the high airtight stopcock of the utility model;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is sectional view of the present utility model;
Fig. 4 is the partial enlarged drawing at A place in Fig. 3;
Fig. 5 is the structural representation of valve gap in the utility model;
Fig. 6 is the structural representation of metal frame seal ring in the utility model.
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 utility model is described further.
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 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.
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 pushing up 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.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model 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 utility model.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 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).
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 |
|---|---|---|---|
| CN201520881892.0U CN205078822U (en) | 2015-11-06 | 2015-11-06 | High inclosed plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520881892.0U CN205078822U (en) | 2015-11-06 | 2015-11-06 | High inclosed plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205078822U true CN205078822U (en) | 2016-03-09 |
Family
ID=55431232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520881892.0U Expired - Fee Related CN205078822U (en) | 2015-11-06 | 2015-11-06 | High inclosed plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205078822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036071A (en) * | 2018-01-22 | 2018-05-15 | 烟台杰瑞石油装备技术有限公司 | A kind of anti-long-pending sand plug valve |
-
2015
- 2015-11-06 CN CN201520881892.0U patent/CN205078822U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036071A (en) * | 2018-01-22 | 2018-05-15 | 烟台杰瑞石油装备技术有限公司 | A kind of anti-long-pending sand plug valve |
| CN108036071B (en) * | 2018-01-22 | 2023-07-14 | 烟台杰瑞石油装备技术有限公司 | Sand accumulation preventing plug 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 |
Granted publication date: 20160309 Termination date: 20161106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |