CN2767773Y - Lifting type hard sealing ball valve - Google Patents
Lifting type hard sealing ball valve Download PDFInfo
- Publication number
- CN2767773Y CN2767773Y CN 200520068476 CN200520068476U CN2767773Y CN 2767773 Y CN2767773 Y CN 2767773Y CN 200520068476 CN200520068476 CN 200520068476 CN 200520068476 U CN200520068476 U CN 200520068476U CN 2767773 Y CN2767773 Y CN 2767773Y
- Authority
- CN
- China
- Prior art keywords
- valve
- spline
- sealing surface
- valve rod
- sealing
- 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
Links
Images
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model relates to a lifting type hard sealing ball valve which comprises a valve body, a valve cap, a valve rod, a valve rod nut, a ball body, a driving device, a sealing piece and an installation piece, wherein the sealing surface of the ball body is made into a conical structure and a spline is arranged below the valve rod nut. The spline is divided into a four-clack cam type structure according to 90DEG, and is fixedly arranged on the valve rod and a gap is arranged between the spline and the valve rod nut. One side of the spline is provided with a floating pin, and the utility model realizes the functions of the disengagement and the tight seal between the sealing surface of the ball body and the sealing surface of a valve seat in the process of opening and closing the valve. The utility model has the advantages of few abrasions of the sealing surface, reliable sealing performance, long service life, etc., and is suitable for pipelines of operating conditions, such as high temperature, high pressure, etc., to use.
Description
Technical field
The utility model relates to a kind of valve, particularly about a kind of hard seal ball valve.
Background technique
Ball valve is because of simple in structure, open-close convenient, little keying or the controlling device that is widely used on the various flowing medium pipelines of flow resistance, existing ball valve generally is made up of valve body, valve gap, valve rod, spheroid, transmission device, Sealing and assembling set, be shaped on the sealing surface of seat that cooperatively interacts with the ball seal face on the valve body, its major defect is: in the valve opening and closing process, wearing and tearing between ball seal face and the sealing surface of seat are bigger, influence the sealability and the working life of product.
Summary of the invention
The purpose of this utility model is the shortcoming that exists at prior art, provide a kind of in opening-closing process between ball seal face and the sealing surface of seat wearing and tearing little, product hermeticity can be good, the lifting type hard seal ball valve of long service life.
The technological scheme that realizes the utility model purpose comprises valve body, valve gap, valve rod, Stem Mut, spheroid, transmission device, Sealing and assembling set, be shaped on the sealing surface of seat that cooperatively interacts with the ball seal face on the valve body, mainly be that the ball seal face is made conical structure, below Stem Mut, be provided with spline, this spline is divided into pintongs cammingly structure by 90 °, be fixedly mounted on the valve rod, and leave the gap between the Stem Mut, spline one side is provided with the pin that floats.
The utility model beneficial effect compared with prior art is: at valve opening with when closing, valve rod drives spheroid earlier and rises, contacting with Stem Mut to spline is that the back valve rod drives the spheroid rotation, after putting in place again the counterrotating handwheel make valve rod drive spheroid to move down, with spheroid and sealing surface of seat lock tightening seal, realized breaking away from the back brake tightening seal in the valve opening and closing process between the ball seal face and sealing surface of seat earlier, made that its sealing surface wear is little, sealability reliable, long service life.
Description of drawings
Fig. 1 is a structure cut-away view of the present utility model.
Fig. 2 is the spline and the pin cooperating structure enlarged view that floats among the utility model Fig. 1.
Embodiment
Lifting type hard seal ball valve as shown in Figure 1 and Figure 2, comprise valve body 1, valve gap 3, valve rod 5, Stem Mut 9, spheroid 2, transmission handwheel 10, Sealing and assembling set, be shaped on the sealing surface of seat that cooperatively interacts with spheroid 2 sealing surfaces on the valve body 1, spheroid 2 sealing surfaces are made conical structure, are provided with filler 4 between valve rod 5 and the valve gap 3.Be provided with spline 8 below Stem Mut 9, this spline 8 is divided into pintongs cammingly structure by 90 °, is fixedly mounted on the valve rod 5, and leaves the gap between the Stem Mut 9, makes valve opening and the moment valve rod of closing 5 moves up.Spline 8 one sides are provided with the pin 7 that floats, and this pin 7 of floating is installed on the support 6 by shell 11, are provided with floating spring 12 between pin 7 and the shell 11 floating.Exist at this programme, spline 8 cams be provided with that direction makes valve opening and transmission handwheel 10 is to being rotated counterclockwise when closing, clockwise direction rotates the tight ball valve sealing of handwheel lock then.
Claims (2)
1, a kind of lifting type hard seal ball valve, comprise valve body (1), valve gap (3), valve rod (5), Stem Mut (9), spheroid (2), transmission device (10), Sealing and assembling set, be shaped on the sealing surface of seat that cooperatively interacts with spheroid (2) sealing surface on the valve body (1), it is characterized in that spheroid (2) sealing surface makes conical structure, be provided with spline (8) in Stem Mut (9) below, this spline (8) is divided into pintongs cammingly structure by 90 °, be fixedly mounted on the valve rod (5), and Stem Mut leaves the gap between (9), and spline (8) one sides are provided with the pin (7) that floats.
2, lifting type hard seal ball valve according to claim 1, the pin (7) that it is characterized in that floating is installed on the support (6) by shell (11), is provided with floating spring (12) between unsteady pin (7) and shell (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520068476 CN2767773Y (en) | 2005-01-19 | 2005-01-19 | Lifting type hard sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520068476 CN2767773Y (en) | 2005-01-19 | 2005-01-19 | Lifting type hard sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2767773Y true CN2767773Y (en) | 2006-03-29 |
Family
ID=36681633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520068476 Expired - Fee Related CN2767773Y (en) | 2005-01-19 | 2005-01-19 | Lifting type hard sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2767773Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444701A (en) * | 2011-04-07 | 2012-05-09 | 赵旭阳 | Valve rod nut |
-
2005
- 2005-01-19 CN CN 200520068476 patent/CN2767773Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444701A (en) * | 2011-04-07 | 2012-05-09 | 赵旭阳 | Valve rod nut |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100590334C (en) | Sealing face wear-proof hard seal ball valve | |
| CN202371196U (en) | Flat-plate gate valve | |
| CN2557763Y (en) | Hard-soft double-seal ball valve | |
| CN2767773Y (en) | Lifting type hard sealing ball valve | |
| CN117189902A (en) | Wear-resisting fused salt valve | |
| CN201155587Y (en) | Sealing face wear-proof hard seal ball valve | |
| CN201593617U (en) | Butterfly-type flat-plate vacuum valve | |
| CN201802909U (en) | Hard sealing ball valve with high temperature and high pressure | |
| CN200946673Y (en) | Double-eccentric bi-directional metal seal butterfly valve | |
| CN202884100U (en) | Large-middle caliber rigidity seal ball valve with long service life | |
| CN203322297U (en) | Elastic self-sealing butterfly valve | |
| CN102943892A (en) | Large-medium-caliber hard sealing long-service-life ball valve | |
| CN206234458U (en) | A kind of anti-lock flue regulating butterfly valve | |
| CN101725732A (en) | High-performance soft seal high-pressure ball valve | |
| CN201502730U (en) | Cock-type mud valve | |
| CN201318447Y (en) | Large-caliber double eccentric butterfly sea valve | |
| CN205654904U (en) | Eccentric half -ball valve | |
| CN2656743Y (en) | Stop cock with plastic lining | |
| CN108561579A (en) | A kind of valve seat detaching structure of the metal sealing fixing ball valve sealing pair without relative motion | |
| CN109854774A (en) | Three eccentricity seals c-type ball valve firmly | |
| CN2612844Y (en) | Gate valve with double flashboards in parallel | |
| CN2632423Y (en) | Worm gearig ball valves | |
| CN201170328Y (en) | Tri-eccentricity hard-sealing surge-proof adjustment butterfly valve | |
| CN220706429U (en) | Metal seal packing device | |
| CN101672376A (en) | Cock type mud valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060329 Termination date: 20110119 |