CN201028037Y - Hard sealing rotary ball valve - Google Patents
Hard sealing rotary ball valve Download PDFInfo
- Publication number
- CN201028037Y CN201028037Y CNU2007200630001U CN200720063000U CN201028037Y CN 201028037 Y CN201028037 Y CN 201028037Y CN U2007200630001 U CNU2007200630001 U CN U2007200630001U CN 200720063000 U CN200720063000 U CN 200720063000U CN 201028037 Y CN201028037 Y CN 201028037Y
- Authority
- CN
- China
- Prior art keywords
- valve
- rod
- spool
- valve rod
- hinged
- 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 - Lifetime
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Abstract
The utility model discloses a hard sealing rotary ball valve, wherein, a hard sealing is adopted by a sealing surface of a valve spool (18) and a valve body (14); a spiral groove (9) is arranged on an upper valve rod (3); a positioning pin (8) is fixed on a bracket (10); one end of the positioning pin (8) is inserted into the spiral groove (9); a lower end of the upper valve rod (3) is hinged with one end of a first connecting rod (16), and the other end of the first connecting rod (16) is hinged with a valve core (18); the lower end of the valve core (18) is hinged with a second connecting rod (20), and the other end of the second connecting rod (20) is hinged with one end of a lower valve rod (22); the lower valve rod (22) is coaxial with the upper valve rod (3), and the other end of the lower valve rod is inserted into the bottom axle hole of the valve body (14). The utility model is a hard sealing rotary ball valve of high-strength, abrasion resistance and high temperature resistance, which can fulfill the operating requirements of high temperature and high pressure.
Description
Technical field
The utility model relates to a kind of valve, particularly relates to a kind of hard sealing ball valve.
Technical background
Existing spiral valve is the soft sealing face structure.Because sealing surface is that flexible materials such as rubber or plastics are made, exist intensity low, defectives such as easy to wear, non-refractory can not satisfy the usage requirement of high temperature and high pressure condition.For head it off, the utility model provides a kind of hard sealing ball valve.
The model utility content
Technical problem to be solved in the utility model provides a kind of intensity height, and is wear-resistant, high temperature resistant, can satisfy the hard sealing ball valve of the usage requirement of high temperature and high pressure condition.
In order to solve the problems of the technologies described above, the hard sealing ball valve that the utility model provides, comprise valve body, spool, valve gap and support, be installed in the upper valve rod on valve gap and the support, the sealing surface of described spool and the sealing surface of valve body adopt hard sealing, described upper valve rod is provided with spiral chute, is fixed with locating stud on the support, and described locating stud one end inserts and forces described upper valve rod along described spiral fluted orbiting motion in the described spiral chute; One end of the lower end of described upper valve rod and first connecting rod is hinged, the other end of described first connecting rod and described spool are hinged, described spool lower end and second connecting rod are hinged, the other end of described second connecting rod and lower valve rod one end are hinged, and described lower valve rod and described upper valve rod coaxial line and the other end insert in the bottom axis hole of described valve body.
As a kind of improvement of the present utility model, described lower valve rod is connected with adjusting screw rod with gland nut by divided ring, and described adjusting screw rod is connected and its side of being provided with, lower end tenon with tapped hole on the cover plate by the screw thread at its middle part; Locking nut by thread bush on described adjusting screw rod, and with cover plate locking, prevent that adjusting screw rod is loosening; Described cover plate is connected with described valve body by the 3rd bolt and nut.
Bottom covers described adjusting screw rod and is connected with described cover plate by the 4th bolt and nut.
Adopt the hard sealing ball valve of technique scheme, because the sealing surface of the sealing surface of spool and valve body adopts hard sealing, thereby it is low to have overcome intensity, defectives such as easy to wear, non-refractory, the intensity height, wear-resistant, high temperature resistant, can satisfy the usage requirement of high temperature and high pressure condition.Move a segment distance on upper valve rod begins when driving valve, simultaneously, drive spool by first connecting rod and make progress, move right, the sealing surface of spool is separated rapidly with the sealing surface of valve body; Upper valve rod is subjected to the restriction of locating stud in the process that rises, must be along the spiral fluted orbiting motion, and therefore, spool slowly rotates to fully open position along the spiral fluted track, the valve complete opening when rising; Upper valve rod begins to move down when closing valve, simultaneously, by first connecting rod drive spool downwards, be moved to the left, make rapid combination of sealing surface of sealing surface with the valve body of spool; Upper valve rod is subjected to the restriction of locating stud in the process that descends, must be along the spiral fluted orbiting motion, and therefore, spool slowly rotates to the complete shut-down position along the spiral fluted track when descending, and valve is closed fully.Because the influence of component machining error, during assembling, valve core sealed cover may be misfitted with valve body sealing surface; At this moment, thereby can rotate the height that adjusting screw rod is adjusted lower valve rod, and then adjust the height of spool, the sealing surface of its sealing surface and valve body is fitted like a glove, reach the leakage test requirement with spanner.
In sum, the utility model is a kind of intensity height, and is wear-resistant, high temperature resistant, can satisfy the hard sealing ball valve of the usage requirement of high temperature and high pressure condition.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Accompanying drawing is a structural representation of the present utility model.
Embodiment
Referring to accompanying drawing, handwheel 1 is connected with upper valve rod nut 4 by parallel key 5, and locks with locking nut 2; Upper valve rod nut 4 can rotate on the screw portion of upper valve rod 3 and move up and down; First plane bearing 7 and second plane bearing 71 are housed on the cylindrical of upper valve rod nut 4, be fixed in by bearing gland 6 in the top circular hole of support 10, the screw thread that passes through on the cylindrical of bearing gland 6 is connected with support 10, swivel bearing gland 6 can be adjusted the gap of first plane bearing 7 and second plane bearing 71, and first plane bearing 7 and second plane bearing 71 are rotated flexibly; The middle part symmetry of support 10 has two apertures, wherein is fixed with locating stud 8, and the other end of locating stud 8 inserts in the spiral chute 9 of upper valve rod 3, forces the orbiting motion of upper valve rod 3 along spiral chute 9; The bottom of support 10 is provided with seam, cooperates with seam on the valve gap 12, is connected with valve gap 12 by first bolt and nut 11; The bottom of valve gap 12 is provided with seam, cooperates with seam on the valve body 14, and is connected with valve body 14 by second bolt and nut 13; The lower end of upper valve rod 3 is provided with circular hole, be connected with an end of first connecting rod 16 by first bearing pin 15, the other end of first connecting rod 16 is connected with spool 18 by second bearing pin 17, the sealing surface of the sealing surface of spool 18 and valve body 14 adopts hard sealing, spool 18 lower ends have aperture equally, be connected with second connecting rod 20 by the 3rd bearing pin 19, the other end of second connecting rod 20 is connected with lower valve rod 22 by the 4th bearing pin 21, the other end of lower valve rod 22 inserts in the bottom axis hole of valve body 14, and be connected with adjusting screw rod 25 with gland nut 24 by divided ring 23, adjusting screw rod 25 can rotate freely in the axis hole of the lower end of lower valve rod 22, but can not move up and down; Adjusting screw rod 25 is connected with tapped hole on the cover plate 26 by the screw thread at its middle part, and the side of being provided with, the lower end tenon 31 of adjusting screw rod 25 can utilize adjustable spanner to pull adjusting screw rod 25 rotations; Locking nut 29 by thread bush on adjusting screw rod 25, and with cover plate 26 locking, prevent that adjusting screw rod 25 is loosening.Cover plate 26 is connected with bottom 30 with valve body 14 respectively with the 4th bolt and nut 28 by the 3rd bolt and nut 27.
Drive valve: referring to accompanying drawing, counterclockwise rotate handwheel 1, driving Stem Mut 4 rotates, because Stem Mut 4 is limited in the support 10 by first plane bearing 7 and second plane bearing 71, can not move up and down, therefore, on beginning, moves upper valve rod 3 segment distance, simultaneously, drive spool 18 by first connecting rod 16 and make progress, move right, the sealing surface of spool 18 is separated rapidly with the sealing surface of valve body 14; Be rotated further handwheel 1, upper valve rod 3 is subjected to the restriction of locating stud 8 in the process that rises, must be along the orbiting motion of spiral chute 9, and therefore, spool 18 slowly rotates to fully open position, the valve complete opening along the track of spiral chute 9 when rising.
Close valve: referring to accompanying drawing, clockwise direction rotates handwheel 1, drives Stem Mut 4 and rotates, at this moment, upper valve rod 3 begins to move down, simultaneously, by first connecting rod 16 drive spools 18 downwards, be moved to the left, make rapid combination of sealing surface of sealing surface with the valve body 14 of spool 18; Be rotated further handwheel 1, upper valve rod 3 is subjected to the restriction of locating stud 8 in the process that descends, must be along the orbiting motion of spiral chute 9, and therefore, spool 18 slowly rotates to the complete shut-down position along the track of spiral chute 9 when descending, and valve is closed fully.
Assembling is adjusted: referring to accompanying drawing, because the influence of component machining error, during assembling, spool 18 sealing surfaces may be misfitted with valve body 14 sealing surfaces; At this moment, thereby can rotate the height that adjusting screw rod 25 is adjusted lower valve rod 22, and then adjust the height of spool 18, the sealing surface of its sealing surface and valve body 14 is fitted like a glove, reach the leakage test requirement with the spanner side of clamping tenon 31.
Adopt the hard sealing ball valve of technique scheme, because the sealing surface of the sealing surface of spool and valve body adopts hard sealing, thereby it is low to have overcome intensity, defectives such as easy to wear, non-refractory, the intensity height, wear-resistant, high temperature resistant, can satisfy the usage requirement of high temperature and high pressure condition.
Claims (3)
1. hard sealing ball valve, comprise valve body, spool, valve gap and support, be installed in the upper valve rod on valve gap and the support, it is characterized in that: the sealing surface of the sealing surface of described spool (18) and valve body (14) adopts hard sealing, described upper valve rod (3) is provided with spiral chute (9), be fixed with locating stud (8) on the support (10), described locating stud (8) one ends insert and force the orbiting motion of described upper valve rod (3) along described spiral chute (9) in the described spiral chute (9); One end of the lower end of described upper valve rod (3) and first connecting rod (16) is hinged, the other end of described first connecting rod (16) and described spool (18) are hinged, described spool (18) lower end and second connecting rod (20) are hinged, the other end of described second connecting rod (20) and lower valve rod (22) one ends are hinged, and described lower valve rod (22) inserts in the bottom axis hole of described valve body (14) with described upper valve rod (3) coaxial line and the other end.
2. hard sealing ball valve according to claim 1, it is characterized in that: described lower valve rod (22) is connected with adjusting screw rod (25) with gland nut (24) by divided ring (23), described adjusting screw rod (25) is connected and its side of being provided with, lower end tenon with tapped hole on the cover plate (26) by the screw thread at its middle part, locking nut (29) by thread bush on described adjusting screw rod (25), and with cover plate (26) locking, prevent that adjusting screw rod (25) is loosening; Described cover plate (26) is connected with described valve body (14) by the 3rd bolt and nut (27).
3. hard sealing ball valve according to claim 2 is characterized in that: bottom (30) covers described adjusting screw rod (25) and is connected with described cover plate (26) by the 4th bolt and nut (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200630001U CN201028037Y (en) | 2007-04-20 | 2007-04-20 | Hard sealing rotary ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200630001U CN201028037Y (en) | 2007-04-20 | 2007-04-20 | Hard sealing rotary ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201028037Y true CN201028037Y (en) | 2008-02-27 |
Family
ID=39132249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200630001U Expired - Lifetime CN201028037Y (en) | 2007-04-20 | 2007-04-20 | Hard sealing rotary ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201028037Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100447462C (en) * | 2007-04-20 | 2008-12-31 | 张长宗 | Hard sealing ball valve |
| CN102606762A (en) * | 2012-03-12 | 2012-07-25 | 湖南泵阀制造有限公司 | Two-way hard seal track rotating cone valve |
| CN102767632A (en) * | 2012-07-18 | 2012-11-07 | 上海凯科阀门制造有限公司 | Ball valve and method for rigidity seal between valve element and valve seat in ball valve |
-
2007
- 2007-04-20 CN CNU2007200630001U patent/CN201028037Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100447462C (en) * | 2007-04-20 | 2008-12-31 | 张长宗 | Hard sealing ball valve |
| CN102606762A (en) * | 2012-03-12 | 2012-07-25 | 湖南泵阀制造有限公司 | Two-way hard seal track rotating cone valve |
| CN102767632A (en) * | 2012-07-18 | 2012-11-07 | 上海凯科阀门制造有限公司 | Ball valve and method for rigidity seal between valve element and valve seat in ball valve |
| CN102767632B (en) * | 2012-07-18 | 2014-02-19 | 上海凯科阀门制造有限公司 | Ball valve and method for implementing rigid seal between valve element and valve seat in ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070420 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |