CN106641323A - Soft-sealing cock valve - Google Patents
Soft-sealing cock valve Download PDFInfo
- Publication number
- CN106641323A CN106641323A CN201610967458.3A CN201610967458A CN106641323A CN 106641323 A CN106641323 A CN 106641323A CN 201610967458 A CN201610967458 A CN 201610967458A CN 106641323 A CN106641323 A CN 106641323A
- Authority
- CN
- China
- Prior art keywords
- bushing
- cock
- hole
- groove
- sealing plug
- 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.)
- Pending
Links
Classifications
-
- 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
- F16K5/08—Details
-
- 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
- F16K5/0221—Fixed plug and turning sleeve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
The invention provides a soft-sealing cock valve which can effectively prevent a bushing from shifting. The soft-sealing cock valve comprises a valve body, a cock and the bushing; a flow channel hole is formed in the valve body, and the cock is installed in the valve body and used for opening and closing the flow channel hole; the bushing is fixed to the hole wall of the flow channel hole; a bushing hole is formed in the bushing, the cock is pressed into the bushing hole, and the cock is in interference fit with the bushing; an upper groove and a lower groove are formed in the valve body, the bushing is fixedly provided with an upper fixing block and a lower fixing block, the upper fixing block is inlaid into the upper groove to be fixed, the lower fixing block is inlaid into the lower groove to be fixed, and after the upper groove is matched with the upper fixing block and the lower groove is matched with the lower fixing block, the bushing is constrained in the axial direction of the cock; anti-rotating ribs are fixed to the hole wall of the flow channal hole, located on the two sides of the bushing and matched with the bushing and constrains the bushing in the rotating direction of the cock; the flow channel hole is a tapered hole.
Description
Technical field
The present invention relates to a kind of soft sealing plug valve.
Background technology
Plug valve is the rotary valve of closure member or plunger shape, is made on passway on valve plug and valve body by being rotated by 90 °
Passway communicates or separates, and realizes a kind of valve being turned on and off, the such as Chinese patent of Application No. 201310123433.1.
Current soft sealing plug valve, mainly using the structure of full lining fluorine.Valve flowing channel hole needs to fix soft seal bushing（PTFE）,
And the runner hole of valve body is all that, using casting, this is of a relatively high to the requirement for casting.Most of plug valve producer is all
Valve flowing channel hole is pressed into using the PTFE of shaping, soft sealing material is pressed into behind valve flowing channel hole, it may appear that the undesirable feelings of laminating
Condition occurs, and bushing easily loosens, and causes bushing to shift.PTFE itself has certain hardness, and its deflection is limited, often very
Difficulty reaches the requirement of design.This can have a strong impact on the service life of plug valve, cause the damage that bushing is too early, for switch relatively frequency
Numerous operating mode, such case is especially apparent.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency present in prior art, and provide a kind of reasonable in design
Soft sealing plug valve, can effectively prevent bushing from shifting.
The present invention the adopted technical scheme that solves the above problems is：A kind of soft sealing plug valve, including valve body, cock and
Bushing；Runner hole is provided with valve body, cock is arranged in valve body, for opening and closing runner hole；Bushing is fixed on runner hole
Hole wall on；It is provided with bush hole in bushing, in cock press-in bush hole, cock and bush hole interference fit；It is characterized in that：Institute
Upper groove and low groove are provided with the valve body stated, fixed block and lower fixed block are fixedly installed on bushing, upper fixed block is inlayed
Enter upper groove to fix, lower fixed block is inlayed into low groove and fixed, upper groove and the cooperation of upper fixed block, low groove and lower fixed block are matched somebody with somebody
Bushing is constrained after conjunction in the axial direction of cock；Anti- convulsion is fixed with the hole wall in runner hole, anti-convulsion coordinates with bushing, anti-convulsion
Bushing is constrained on the direction of rotation of cock；Described runner hole is bellmouth.
The taper in runner hole of the present invention is 2 °.
Central cavity is provided with the middle part of cock of the present invention.
The top and bottom of central cavity of the present invention is arc surfaced, and its width is gradually reduced from top to bottom.
The sidepiece of cock body of the present invention is provided with sidepiece cavity, and sidepiece cavity is located at the left and right sides of central cavity.
The side outwardly of sidepiece cavity of the present invention is arc surfaced, and side inwardly is planar shaped.
Anti- convulsion of the present invention is at least two, setting up and down.
The present invention compared with prior art, with advantages below and effect：
1st, during cock is by pass is reached, bushing is scraped in constantly extruding, bushing has the trend of rotation, and anti-convulsion can have
The bushing that prevents of effect is shifted, and affects the circulation area and sealing property of valve.Upper groove and low groove can effectively ensure lining
The adhesive strength of set, prevents bushing from shifting.By groove and anti-convulsion, the service life of valve is substantially increased, improve valve
The quality of door.
2nd, cock middle part and sidepiece are provided with cavity, are formed by engraved structure, it is ensured that cock pressure-bearing wall thickness, do not affect cock
Intensity and use, so can both meet use requirement, can mitigate the weight of cock again, save casting and produce and process into
This, while after the completion of assembling, the moment of torsion of plug valve can be mitigated.Pressure-bearing wall thickness is chosen according to design standard, it is ensured that cock
Use intensity is unaffected.When cock rotates in valve body, can significantly mitigate the opening and closing moment of torsion of valve.
Description of the drawings
Fig. 1 is the cross section structure diagram faced of the embodiment of the present invention.
Fig. 2 is the cross section structure diagram of the side-looking of the embodiment of the present invention.
Fig. 3 is the cross section structure diagram of the A-A of Fig. 1.
Fig. 4 is the mplifying structure schematic diagram of the C portion of Fig. 2.
Fig. 5 is the mplifying structure schematic diagram of the part B of Fig. 2.
Fig. 6 is the mplifying structure schematic diagram of the D parts of Fig. 3.
Fig. 7 is the mplifying structure schematic diagram of the E parts of Fig. 3.
Specific embodiment
Below in conjunction with the accompanying drawings and by embodiment the present invention is described in further detail, and following examples are to this
Bright explanation and the invention is not limited in following examples.
Referring to Fig. 1～Fig. 7, the present embodiment includes valve body 1, cock 2 and bushing 3.
Runner hole is provided with valve body 1, cock 2 is arranged in valve body 1, for opening and closing runner hole.
Bushing 3 is fixed on the hole wall in runner hole.Bush hole is provided with bushing 3, in the press-in bush hole of cock 2, the He of cock 2
Bush hole interference fit, by the elastic deformation of bushing 3, it is ensured that when closed, valve can realize sealing for cock 2.
Upper groove 4 and low groove 5 are provided with valve body 1, fixed block 6 and lower fixed block 7 are fixedly installed on bushing 3, on
Fixed block 6 is inlayed into upper groove 4 and is fixed, and lower fixed block 7 is inlayed into low groove 5 and fixed, upper groove 4 and upper fixed block 6 coordinate, under
Groove 5 and lower fixed block 7 constrain bushing 3 after coordinating in the axial direction of cock 2 so that bushing 3 will not be moved in the axial direction of cock 2
It is dynamic, it is ensured that bushing 3 is not easy to loosen.Upper groove 4 and low groove 5 are setting up and down.Before compacting bushing 3, in order to reduce bushing 3
Hardness, bushing 3 is heated, shaping suppress by way of, in bushing pinch groove, wait bushing 3 cooling after,
Shaping tooling is taken out, the adhesive strength of bushing can be so greatly improved, extends the service life of bushing.
Anti- convulsion 8 is fixed with the both sides of the hole wall in runner hole, anti-convulsion 8 coordinates with bushing 3, and anti-convulsion 8 is in cock 2
Bushing 3 is constrained on direction of rotation so that bushing 3 can not be moved on the direction of rotation of cock 2, prevent bushing 3 in the rotation of cock 2
Turn square upward displacement, affect the circulation area and sealing property of valve.Anti- convulsion 8 is at least two, setting up and down, binding effect
More preferably.
Runner hole is bellmouth, and its taper is 2 °, so can pilot bushing 3, it is ensured that bushing 3 is smoothly pressed into specified
Position.
The middle part of cock 2 is provided with central cavity 9.The top and bottom of central cavity 9 is arc surfaced, and its width arrives from above
Under be gradually reduced.
The sidepiece of cock body 1 is provided with sidepiece cavity 10, and sidepiece cavity 10 is located at the left and right sides of central cavity 9.Sidepiece cavity
10 side outwardly is arc surfaced, and side inwardly is planar shaped.
Above content described in this specification is only to present configuration example explanation；And, this
The title that bright each several part is taken can also be different, what all constructions according to described in inventional idea of the present invention, feature and principle were done etc.
Effect or simple change, are included in the protection domain of patent of the present invention.
Claims (7)
1. a kind of soft sealing plug valve, including valve body, cock and bushing；Runner hole is provided with valve body, cock is arranged in valve body,
For opening and closing runner hole；Bushing is fixed on the hole wall in runner hole；Bush hole, cock press-in bush hole are provided with bushing
It is interior, cock and bush hole interference fit；It is characterized in that：Upper groove and low groove are provided with described valve body, it is fixed on bushing
Fixed block and lower fixed block are provided with, upper fixed block is inlayed into upper groove and fixed, and lower fixed block is inlayed into low groove and fixed, on
Groove and the cooperation of upper fixed block, low groove and lower fixed block constrain bushing after coordinating in the axial direction of cock；The hole wall in runner hole
On be fixed with anti-convulsion, anti-convulsion is located at bushing both sides, and anti-convulsion coordinates with bushing, anti-convulsion on the direction of rotation of cock about
Beam bushing；Described runner hole is bellmouth.
2. soft sealing plug valve according to claim 1, it is characterised in that：The taper in described runner hole is 2 °.
3. soft sealing plug valve according to claim 1, it is characterised in that：Middle part is provided with the middle part of described cock empty
Chamber.
4. soft sealing plug valve according to claim 3, it is characterised in that：The top and bottom of described central cavity is
Arc surfaced, and its width is gradually reduced from top to bottom.
5. soft sealing plug valve according to claim 3, it is characterised in that：It is empty that the sidepiece of described cock body is provided with sidepiece
Chamber, sidepiece cavity is located at the left and right sides of central cavity.
6. soft sealing plug valve according to claim 5, it is characterised in that：The side outwardly of described sidepiece cavity is
Arc surfaced, side inwardly is planar shaped.
7. soft sealing plug valve according to claim 1, it is characterised in that：Described anti-convulsion is at least two, up and down
Arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610967458.3A CN106641323A (en) | 2016-10-31 | 2016-10-31 | Soft-sealing cock valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610967458.3A CN106641323A (en) | 2016-10-31 | 2016-10-31 | Soft-sealing cock valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106641323A true CN106641323A (en) | 2017-05-10 |
Family
ID=58820634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610967458.3A Pending CN106641323A (en) | 2016-10-31 | 2016-10-31 | Soft-sealing cock valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106641323A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3498317A (en) * | 1968-03-22 | 1970-03-03 | Duriron Co | Plug valves having relieved high pressure seal areas |
| CN2382912Y (en) * | 1999-07-14 | 2000-06-14 | 温州市浙东高中压阀门厂 | Nesting stop cock |
| CN103195944A (en) * | 2013-04-11 | 2013-07-10 | 浙江万龙机械有限公司 | Plug valve of seal structure |
| CN203477431U (en) * | 2013-07-31 | 2014-03-12 | 安策阀门（太仓）有限公司 | Efficient seal plug valve |
| CN206347140U (en) * | 2016-10-31 | 2017-07-21 | 杭州安其拉科技有限公司 | Soft sealing plug valve |
-
2016
- 2016-10-31 CN CN201610967458.3A patent/CN106641323A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3498317A (en) * | 1968-03-22 | 1970-03-03 | Duriron Co | Plug valves having relieved high pressure seal areas |
| CN2382912Y (en) * | 1999-07-14 | 2000-06-14 | 温州市浙东高中压阀门厂 | Nesting stop cock |
| CN103195944A (en) * | 2013-04-11 | 2013-07-10 | 浙江万龙机械有限公司 | Plug valve of seal structure |
| CN203477431U (en) * | 2013-07-31 | 2014-03-12 | 安策阀门（太仓）有限公司 | Efficient seal plug valve |
| CN206347140U (en) * | 2016-10-31 | 2017-07-21 | 杭州安其拉科技有限公司 | Soft sealing plug valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
|
| RJ01 | Rejection of invention patent application after publication |