CN2859117Y - Track type zero friction butterfly valve - Google Patents
Track type zero friction butterfly valve Download PDFInfo
- Publication number
- CN2859117Y CN2859117Y CN 200520122651 CN200520122651U CN2859117Y CN 2859117 Y CN2859117 Y CN 2859117Y CN 200520122651 CN200520122651 CN 200520122651 CN 200520122651 U CN200520122651 U CN 200520122651U CN 2859117 Y CN2859117 Y CN 2859117Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- valve plate
- rail
- plate
- 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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- Lift Valve (AREA)
Abstract
The present utility model relates to a rail-type frictionless butterfly valve. A inclined-plane guideway [18] is set at the joint of valve stem [3] and valve plate [10], at the both ends of said inclined-plane guideway [18] the guide pins [9] on the valve plate are set. At the upper end of valve stem [3] an axial guide channel [21] and a spiral groove are set, at the lower end of said inclined-plane guideway [18] an eccentric guideway parallel axially to the valve stem [3] is set, on the valve body a guide pin [4] on the valve stem connected with the guide channel [21] is fixed. When the butterfly valve is opened, said valve plate deviates outward from said valve seat firstly and rotates, when said valve is closed, said valve plate rotates firstly and moves inward to said valve seat. The present utility model has eliminated the friction between the valve plate and the valve seat, solved the sealing pair abrasion of traditional butterfly valve, raised the service life of valve, and has good sealing performance.
Description
Technical field
The utility model relates to the butterfly valve that is used for plumbing, waste water control and fluid pipeline system.
Background technique
At present, no matter existing reed valve is to the heart or off-centre, and sealing or soft seal firmly, opening and closing all are to drive the valve plate work by valve rod to rotate and realize for 90 °.Sealing surface in the opening-closing process of valve between all inevitable valve plate and the valve seat rubs mutually, sealing pair will inevitably take place in the course of time wear and tear mutually and produce seal leakage.
Summary of the invention
The purpose of this utility model provides a kind of rail mounted does not have the friction butterfly valve, and sealing pair does not produce relative friction in opening-closing process, thereby can solve above-mentioned butterfly valve seal pair wear and leakage problem because of rubbing and produce relatively in opening-closing process.
The utility model is to solve like this: start-stop device connects with threaded stem; Valve rod with the valve plate connection place be provided with the two sides parallel and with the angle of stem shaft be the surface rail of acute angle, on the valve plate connecting hole of guide rail both sides, be fixed with and the contacted valve plate guide finger of plurality of ramps; Be provided with axial channel in valve rod upper end, an end of axial channel is provided with the radially guide groove that communicates with it, on the valve body fixing cooperate with guide groove the valve rod locating stud.
In order to make the valve rod locating stud in axial channel and radially transition easily between the guide groove, described radially guide groove is spiral chute and the lower end that is located at axial channel; The surface rail lower end is provided with the eccentric guide rail parallel with stem shaft, and eccentric guide rail width is enough to make it by being installed in the gap between the guide finger on the connecting hole.In the time of in the spiral chute below the valve rod locating stud is carried out the transition to by axial channel, the valve rod spiral rises, and the valve plate connecting hole moves down and carries out the transition on the eccentric guide rail.
The radian of spiral chute on valve rod is pi/2.When opening valve, the rotary opening and closing device, valve rod moves up under the effect of axial channel vertically, valve plate moves at the effect lower edge of guide finger surface rail, make valve plate and valve seat separate on axially in conduit, when guide finger slided to eccentric guide rail, the valve rod locating stud slided to radially in the guide groove, this moment, valve rod was made radially half-twist, and valve plate is opened fully.Close closed procedure in contrast.
The beneficial effect that the utility model had is: do not produce the sealing pair wear phenomenon in the opening-closing process.Rotation again after valve plate departs from valve seat earlier laterally when opening, valve plate rotation earlier relies on valve seat more to the inside when closing, and has eliminated the friction between valve plate and the valve seat, has solved the sealing pair wear problem of traditional butterfly valve, the working life of having improved valve.Because the mechanical wedging power of the substantially horizontal that surface rail provides makes valve plate wedge in the valve seat, with the maintenance sealing, thereby good sealing effect.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 be among Fig. 1 the utility model at the left view of opening state.
Among the figure, 1, Stem Mut; 2, handwheel; 3, valve rod; 4, guide positioning pin; 5, shaft sealing cover; 6, valve body; 7, Upper shaft sleeve; 8, valve seat insert; 9, valve plate guide finger; 10, valve plate; 11, anti-attrition skidding; 12, back-up ring; 13, Lower shaft sleeve; 14, adjustable sealing; 15, regulate bolt; 16, eccentric guide rail; 17, connecting hole; 18, surface rail; 19, link arm; 20, spiral chute; 21, axial channel; 22, valve gap.
Embodiment
As shown in Figure 1, the utility model is made up of valve body 6, valve plate 10, valve rod 3 and handwheel 2, handwheel 2 connects with valve rod 3 by Stem Mut 1, Stem Mut 1 is fixed on the valve body 6 by valve gap 22, valve rod 3 connects with valve body 6 by last Lower shaft sleeve 7,13, valve rod 3 is sealed by shaft sealing cover 5 with valve body 6 above Upper shaft sleeve 7, is provided with adjustable sealing 14 in the valve rod hole below Lower shaft sleeve 13, is equipped with on the valve body 6 of adjustable sealing 14 bottoms and regulates bolt 15.Valve seat insert 8 is fixed in the valve body 6 by back-up ring 12, and valve plate 10 is fixed in the valve body by valve rod 3, and its sealing surface contacts with valve seat insert 8 and forms sealing pair.Valve plate 10 1 sides are provided with two link arm 19 up and down, link arm 19 is provided with the connecting hole 17 that links to each other with valve rod 3, valve rod 3 is provided with surface rail 18 at connecting hole 17 places, this surface rail 18 is two-sided guide rail, the angle that its inclined-plane and valve rod are 3 is an acute angle, on the connecting hole 17 of surface rail both sides, be provided with and the contacted valve plate guide finger 9 of plurality of ramps, guide finger 9 is spatially vertical mutually with valve rod 3, and connect with the rolling width of cloth with link arm 19, surface rail 18 belows be provided with one section with 3 parallel eccentric guide rails 16 of valve rod, the width of this off-centre guide rail 16 is equal to or slightly less than the gap between two guide fingers 9, makes that connecting hole 17 can move on on the eccentric guide rail 16 when moving on the valve rod 3.Be provided with the axial channel 21 of two symmetries in valve rod 3 upper ends, the length of axial channel is not shorter than the length of valve rod at the surface rail place, and the lower end of axial channel is provided with the spiral chute 20 that communicates with it, and spiral chute is a pi/2 at valve rod 3 radian radially.The fixing valve rod locating stud 4 that cooperates with two guide grooves 20,21 on the valve body 6.In order to reduce friction, be provided with anti-attrition skidding 11 between valve plate link arm 19 and the last Lower shaft sleeve 7,13.Position shown in Figure 1 is a closed position, and this moment, valve plate 10 was pressed on the valve seat under the pressure of valve rod surface rail 18, and its sealing surface closely contacts with valve seat insert 8 and makes valve closing.Its opening-closing process is as follows:
During unlatching, rotate counterclockwise handwheel 2, Stem Mut 2 is rotated, because the axial channel 21 that this moment, valve rod locating stud 4 was arranged in valve rod makes valve rod can not do circumferential rotation, thereby Stem Mut 1 drive valve rod 3 moves up, surface rail 18 on the valve rod also rises thereupon, promotes valve plate 10 by guide finger 9 and moves in the other direction to valve seat, makes valve plate separate with valve seat; When valve rod locating stud 4 slides in the spiral chute 20, handwheel 2 drives valve rod 3 and does the spiral rising, and at this moment, guide finger 9 slides on the eccentric guide rail 16, valve rod 3 drives when spiral chute 20 is done 90 ° of rotations and makes valve plate 10 half-twists reach fully open position, as shown in Figure 2 the position.
When closing, clockwise rotate handwheel 2, valve rod 3 is done rotation along spiral chute 20 and is descended and drive and make valve plate 10 half-twists, and when valve rod locating stud 4 entered the axial channel 21 of valve rod, guide finger 9 was promoted to surface rail 18 places of valve rod; At this moment, valve rod 3 is made straight line and is descended under the effect of valve rod locating stud 4, and surface rail 18 promotes valve plate by guide finger 9 and moves horizontally to the valve seat direction, finally under the effect of surface rail machinery wedging power valve plate is pressed on the valve seat, reaches sealing fully.
Claims (3)
1, a kind of rail mounted does not have the friction butterfly valve, comprise valve body [6], valve plate [10], valve rod [3] and start-stop device, valve plate [10] is provided with connecting hole [17], and valve plate [10] is fixed on the valve rod [3] by connecting hole [17], it is characterized in that start-stop device and valve rod [3] scyewed joint; Valve rod [3] with valve plate [10] connection place be provided with the two sides parallel and with the angle of valve rod [3] axle be the surface rail [18] of acute angle, on the valve plate connecting hole [17] of surface rail [18] both sides, be fixed with and the contacted valve plate guide finger of plurality of ramps [9]; Be provided with axial channel [21] in valve rod [3] upper end, an end of axial channel [21] is provided with the radially guide groove that communicates with it, on the valve body fixing cooperate with guide groove [21] valve rod locating stud [4].
2, rail mounted according to claim 1 does not have the friction butterfly valve, it is characterized in that described radially guide groove is spiral chute [20] and the lower end that is located at axial channel [21]; Surface rail [18] lower end is provided with and the parallel eccentric guide rail [16] of valve rod [3] axle, and eccentric guide rail width is enough to make it by being installed in the gap between the guide finger [9] on the connecting hole [17].
3, rail mounted according to claim 2 does not have the friction butterfly valve, it is characterized in that spiral chute [20] is a pi/2 at valve rod [3] radian radially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520122651 CN2859117Y (en) | 2005-09-22 | 2005-09-22 | Track type zero friction butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520122651 CN2859117Y (en) | 2005-09-22 | 2005-09-22 | Track type zero friction butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2859117Y true CN2859117Y (en) | 2007-01-17 |
Family
ID=37611976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520122651 Expired - Fee Related CN2859117Y (en) | 2005-09-22 | 2005-09-22 | Track type zero friction butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2859117Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392838B (en) * | 2007-09-19 | 2010-09-15 | 上海真空阀门制造有限公司 | Ultra high vacuum butterfly valve and opening and closing method thereof |
| CN104373606A (en) * | 2014-10-22 | 2015-02-25 | 盐城法尔机械有限公司 | Elastic stop valve and operation method thereof |
| CN104455489A (en) * | 2014-11-28 | 2015-03-25 | 华南理工大学 | Disc valve linkage structure |
| CN105240545A (en) * | 2015-10-31 | 2016-01-13 | 河北工业大学 | Dual-drive friction-free hard-seal butterfly valve |
| CN105736735A (en) * | 2016-03-14 | 2016-07-06 | 太仓优尼泰克精密机械有限公司 | Double-rail groove hard sealing ball valve |
| US11814822B2 (en) | 2018-09-27 | 2023-11-14 | Aalberts Integrated Piping Systems Limited | Plumbing fitting |
-
2005
- 2005-09-22 CN CN 200520122651 patent/CN2859117Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392838B (en) * | 2007-09-19 | 2010-09-15 | 上海真空阀门制造有限公司 | Ultra high vacuum butterfly valve and opening and closing method thereof |
| CN104373606A (en) * | 2014-10-22 | 2015-02-25 | 盐城法尔机械有限公司 | Elastic stop valve and operation method thereof |
| CN104455489A (en) * | 2014-11-28 | 2015-03-25 | 华南理工大学 | Disc valve linkage structure |
| CN105240545A (en) * | 2015-10-31 | 2016-01-13 | 河北工业大学 | Dual-drive friction-free hard-seal butterfly valve |
| CN105240545B (en) * | 2015-10-31 | 2017-07-28 | 河北工业大学 | A kind of dual drive is without friction hard-sealing butterfly valve |
| CN105736735A (en) * | 2016-03-14 | 2016-07-06 | 太仓优尼泰克精密机械有限公司 | Double-rail groove hard sealing ball valve |
| US11814822B2 (en) | 2018-09-27 | 2023-11-14 | Aalberts Integrated Piping Systems Limited | Plumbing fitting |
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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: 20070117 Termination date: 20091022 |