CN201496580U - Non-wear block valve - Google Patents
Non-wear block valve Download PDFInfo
- Publication number
- CN201496580U CN201496580U CN2009203089134U CN200920308913U CN201496580U CN 201496580 U CN201496580 U CN 201496580U CN 2009203089134 U CN2009203089134 U CN 2009203089134U CN 200920308913 U CN200920308913 U CN 200920308913U CN 201496580 U CN201496580 U CN 201496580U
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- Prior art keywords
- valve
- valve rod
- hemisphere
- valve body
- rod
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- Expired - Fee Related
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a non-wear block valve; a hemisphere (18) is a valve sealing part, and hard sealing is adopted between a spherical sealing surface of the hemisphere and a cone-shaped sealing surface of a valve body (16); an upper valve rod (3) is provided with a guide groove (13); a bracket (11) is provided with a guide pin (9), one end of which is inserted into the guide groove (13) to driven the upper valve rod (3) to move along the locus of the guide groove (13); the lower end of the upper valve rod (3) is provided with an inclined plane (17); a cam fitting mechanism is formed by the inclined plane (17) and a square ear hole arranged at the upper part of the hemisphere (18); an ear hole arranged at the lower part of the hemisphere (18) is internally inserted with a lower valve rod (20) which is arranged at the same axial line as the upper valve rod (3); and the end part of the lower valve rod (20) is arranged inside an axle hole at the bottom of the valve body (16). The non-wear block valve has the advantages of resisting high temperature and abrasion, being low in flow resistance, small in volume and light in weight and producing wide-aperture products.
Description
Technical field
The utility model relates to a kind of valve, particularly relates to a kind of nothing wearing and tearing cut-off valve.
Technical background
Existing Track butterfly valve and track ball valve, wherein the more common butterfly valve of Track butterfly valve has that moment of torsion is little, serviceability temperature is high and sealing pair is opened advantages such as not having friction, but is in the middle of the runner because of valve plate, can't adapt to impurity content height, medium that erosive wear is serious.Valve plate is in the middle of the runner simultaneously, and the valve resistance coefficient is bigger.And the track ball valve can remedy the above-mentioned deficiency of Track butterfly valve, not only can be high temperature resistant, and also wear-resistant, and the track ball valve resistance coefficient of full tunnel design is with suitable with the length pipeline, almost nil.But track ball valve cost of production height, the valve volume is bigger, is not suitable for doing heavy caliber, and fertile valve aperture is no more than DN600, can't fully meet the need of market.
The model utility content
Technical problem to be solved in the utility model provide a kind of be high temperature resistant wear-resistant again, flow resistance is little, and the little nothing wearing and tearing cut-off valve of producing the heavy caliber product in light weight of volume.
In order to solve the problems of the technologies described above, the nothing wearing and tearing cut-off valve that the utility model provides, comprise drive part, valve body, hemisphere, support, be installed in the upper valve rod on valve body and the support, described hemisphere is a valve sealing element, and the conical seal (contact) face of its spherical sealing surface and described valve body adopts hard sealing; Described upper valve rod is provided with guiding groove, and described support is provided with guide finger, and described guide finger one end inserts and forces the orbiting motion of described upper valve rod along described guiding groove in the described guiding groove; Described upper valve rod lower end is provided with the inclined-plane, and the square earhole in described inclined-plane and described hemisphere top is formed the cam matching mechanism, is inserted with lower valve rod in the earhole of described hemispheroidal bottom; Described lower valve rod and described upper valve rod coaxial line and its end are located in the bottom axis hole of described valve body.
The lower end of described lower valve rod is spherical, constitute sphere high-amplitude hinge and be connected with the supporting sleeve be installed in described valve body bottom axis hole by end cap in, described support cover bottom interior wall be provided with screw thread and by screw thread be equipped with and described lower valve rod bottom corresponding adjusting nut and locknut.
For ease of producing and safeguarding, replenish as of the present utility model, the axis hole of described valve body bottom and described valve body split design form the valve bottom in tape spool hole, described valve bottom is connected with described valve body by the 4th bolt and nut, and described lower valve rod, support cover and described end cap are installed on the described valve bottom.
Adopt the nothing wearing and tearing cut-off valve of technique scheme, because the sealing surface of hemispheroidal sealing surface and valve seat adopts hard sealing, hemisphere sealing surface motion conditions is to break away from rotation more earlier, thereby prevents the stuck phenomenon that hemisphere and valve seat Yin Wendu raise and the generation high temperature creep occurs, can be high temperature resistant.Sealing adopts semiglobe simultaneously, and the later half spheroid of valve opening is in runner one side, and not only flow resistance is little, and adapts to the high medium of impurity content, has good wear-resistant abrasion resistance energy.Adopt semiglobe can reduce valve weight, reduce the valve volume, be convenient to produce large bore valves.
When driving valve, drive the Stem Mut rotation by the handwheel on the driving mechanism, make on the upper valve rod by screw thread and to move, this moment, guide finger was in the straight trough part of upper valve rod guiding groove, upper valve rod drives hemisphere by the tail end inclined-plane and promptly moves to deviating from the sealing surface of seat direction backward, thereby hemispheroidal sealing surface is recessed backward from sealing surface of seat rapidly with approximate stop valve opening ways, after two sealing surfaces separate certain distance, guide finger begins to change over to the spiral chute part by the straight trough of upper valve rod, Stem Mut continues to drive valve rod and rises, force upper valve rod to pass through the square earhole in hemisphere upper end and drive hemisphere half-twist, valve complete opening.
When closing valve, upper valve rod moves down, being subjected to the guide finger restriction must move along the helical trajectory of guiding groove, valve rod drives the hemisphere half-twist by square earhole, guide finger is got back to upper valve rod guiding groove straight trough part, is rotated further handwheel upper valve rod is descended, and forces the inclined-plane to push down hemisphere forward promptly to drawing close the motion of sealing surface of seat direction, make the sealing surface of hemispheroidal sealing surface and valve seat close the mode pressing with approximate stop valve, valve is closed fully; Driving valve and closing in the process of valve hemisphere rotation, sealing surface is contactless all the time.
In sum, the utility model be a kind of be high temperature resistant wear-resistant again, flow resistance is little, and the little nothing wearing and tearing cut-off valve of producing the heavy caliber product in light weight of volume.
Description of drawings
Fig. 1 is a structure sectional view of the present utility model,
Fig. 2 is the utility model expansion structure sectional view.
Embodiment
The utility model is described in further detail in conjunction with this figure and embodiment.
Referring to Fig. 1, handwheel 1 is connected with Stem Mut 4 by parallel key 5, and by locking nut 2 lockings; Upper valve rod 3 can rotate under the transmission of Stem Mut 4 and move up and down by the screw rod of upper end; First plane bearing 8 and second plane bearing 81 are housed on the cylindrical of Stem Mut 4, be fixed in by bearing gland 6 in the circular hole on support 11 tops, bearing gland 6 is connected with support 11 by the screw thread on the cylindrical, swivel bearing gland 6 can be adjusted the gap of first plane bearing 8 and second plane bearing 81, first plane bearing 8 and second plane bearing 81 are rotated flexibly, and prevent the loosening of bearing gland 6 by the Cock screw 7 that is installed in the support 11 top tapped holes; The middle part symmetry of support 11 has two apertures, wherein is fixed with guide finger 9, and the other end of guide finger 9 inserts in the guiding groove 13 of upper valve rod 3, forces the orbiting motion of upper valve rod 3 along guiding groove 13; The bottom of support 11 is provided with seam, cooperates with seam on the valve gap 14, is connected with valve gap 14 by first bolt and nut 12; The bottom of valve gap 14 is provided with seam, cooperates with seam on the valve body 16, and is connected with valve body 16 by second bolt and nut 15; The lower end of upper valve rod 3 is provided with inclined-plane 17, forms the cam matching mechanism with the square earhole in hemisphere 18 tops, is set with lower valve rod 20 in the bottom earhole of hemisphere 18, and its degree of depth can be regulated by lock screw 19; Lower valve rod 20 and upper valve rod 3 coaxial lines, lower valve rod 20 lower ends are spherical, be connected with the supporting sleeve 21 formation sphere high-amplitude hinges in being installed in valve body 16 bottom axis holes, support cover 21 bottom interior wall to be provided with screw thread, the position of adjusting nut 22 by being installed in supporting sleeve 21 bottoms and locknut 23 can regulate and control lower valve rod 20 makes them can be with hemisphere 18 swings but do not move up and down; Valve body 16 bottoms are provided with end cap 25, are connected with valve body 16 by the 3rd bolt and nut 25, and hemisphere 18 is a valve sealing element, and the conical seal (contact) face of its spherical sealing surface and valve body 16 adopts hard sealing.
For ease of producing and safeguarding, replenish as of the present utility model, referring to Fig. 2, the axis hole of valve body 16 bottoms and valve body 16 splits design form the valve bottom 26 in tape spool hole, valve bottom 26 is connected with valve body 16 by the 4th bolt and nut 27, and lower valve rod 20, support cover 21 and end cap 25 are installed on the valve bottom 26.
Drive valve: counterclockwise rotate handwheel 1, drive Stem Mut 4 rotations, make on the upper valve rod 3 by screw thread and to move, this moment, guide finger 9 was in the straight trough part of guiding groove 13, upper valve rod 3 drives hemisphere 18 by tail end inclined-plane 17 and promptly moves to the sealing surface direction that deviates from valve body 16 backward, thereby the sealing surface of hemisphere 18 is recessed backward from the sealing surface of valve body 16 rapidly with approximate stop valve opening ways, after two sealing surfaces separate certain distance, guide finger 9 begins to change over to the spiral chute part by the straight trough of guiding groove 13, Stem Mut 4 continues to drive upper valve rod 3 and rises, force upper valve rod 3 to drive the track half-twist of hemisphere 18 along guiding groove 13, valve complete opening by tail end inclined-plane 17.
Close valve: clockwise direction rotates handwheel 1, Stem Mut 4 drives upper valve rod 3 and moves down, the restriction that is subjected to guide finger 9 must be moved along the helical trajectory of guiding groove 13, upper valve rod 3 drives hemisphere 18 half-twists by tail end inclined-plane 17, guide finger 9 is got back to the straight trough part of guiding groove 13 in the upper valve rod 3, being rotated further handwheel 1 descends upper valve rod 3, force inclined-plane 17 to push down hemisphere 18 forward promptly to the sealing surface direction motion of drawing close valve body 16, make the sealing surface of hemisphere 18 and the sealing surface of valve body 16 close the rapid pressing of mode with approximate stop valve, valve is closed fully.
Assembling is adjusted: referring to Fig. 1, because the influence of component machining error, during assembling, hemisphere 18 sealing surfaces may be misfitted in Vertical direction with the sealing surface of valve body 16; At this moment, can unclamp lock screw 19,, sealing surface be fitted like a glove, to reach the leakage test requirement to adjust the height of lower valve rod 20 with spanner.
Claims (3)
1. one kind is not had the wearing and tearing cut-off valve, comprise drive part, valve body (16), hemisphere (18), support (11), be installed in the upper valve rod (3) on valve body (16) and the support (11), it is characterized in that: described hemisphere (18) is a valve sealing element, and the conical seal (contact) face of its spherical sealing surface and described valve body (16) adopts hard sealing; Described upper valve rod (3) is provided with guiding groove (13), described support (11) is provided with guide finger (9), and described guide finger (9) one ends insert and force the orbiting motion of described upper valve rod (3) along described guiding groove (13) in the described guiding groove (13); Described upper valve rod (3) lower end is provided with inclined-plane (17), the cam matching mechanism is formed with the square earhole in described hemisphere (18) top in described inclined-plane (17), be inserted with lower valve rod (20) in the bottom earhole of described hemisphere (18), described lower valve rod (20) is located in the bottom axis hole of described valve body (16) with described upper valve rod (3) coaxial line and its end.
2. nothing wearing and tearing cut-off valve according to claim 1, it is characterized in that: the lower end of described lower valve rod (20) is for spherical, constitute sphere high-amplitude hinge and be connected with the supporting sleeve (21) be installed in described valve body (16) bottom axis hole by end cap (25) in, described support cover (21) bottom interior wall be provided with screw thread and by screw thread be equipped with and described lower valve rod (20) bottom corresponding adjusting nut (22) and locknut (23).
3. nothing wearing and tearing cut-off valve according to claim 2, it is characterized in that: the axis hole of described valve body (16) bottom and described valve body (16) split design form the valve bottom (26) in tape spool hole, described valve bottom (26) is connected with described valve body (16) by the 4th bolt and nut (27), and described lower valve rod (20), support cover (21) and described end cap (25) are installed on the described valve bottom (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203089134U CN201496580U (en) | 2009-08-26 | 2009-08-26 | Non-wear block valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203089134U CN201496580U (en) | 2009-08-26 | 2009-08-26 | Non-wear block valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201496580U true CN201496580U (en) | 2010-06-02 |
Family
ID=42439787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203089134U Expired - Fee Related CN201496580U (en) | 2009-08-26 | 2009-08-26 | Non-wear block valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201496580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2009
- 2009-08-26 CN CN2009203089134U patent/CN201496580U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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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: 20100602 Termination date: 20130826 |