CN205118278U - Eccentric ball -type butterfly valve - Google Patents
Eccentric ball -type butterfly valve Download PDFInfo
- Publication number
- CN205118278U CN205118278U CN201520843792.9U CN201520843792U CN205118278U CN 205118278 U CN205118278 U CN 205118278U CN 201520843792 U CN201520843792 U CN 201520843792U CN 205118278 U CN205118278 U CN 205118278U
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- China
- Prior art keywords
- ball
- valve seat
- type butterfly
- valve
- pressure plate
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Abstract
The utility model discloses an eccentric ball -type butterfly valve, including valve body, ball -type butterfly plate, disk seat, clamp plate circle, butterfly pole, filler and gland, the ball -type butterfly plate is installed in the valve body, and the ball -type butterfly plate is connected with the butterfly pole, ball -type butterfly plate thickness is greater than the thickness of disk seat, the disk seat is connected with the internal wall of the inner chamber of valve body, the clamp plate circle lies in the disk seat outer end, and the clamp plate circles the fixed jump ring that is provided with, and the clamp plate circle is connected with the valve body through the jump ring, and the clamp plate encloses interior terminal surface and compress tightly the disk seat, the disk seat has elasticity, just be provided with sealed inclined plane on the disk seat, on the ball -type butterfly plate an organic whole be provided with with the sealed sphere that sealed inclined plane matees, packing force through the clamp plate circle make the sealed inclined plane on the disk seat be out of shape become with the arc surface that sealed sphere matees, the rotation angle of the sealed sphere of ball -type butterfly plate is 5 -9. Above -mentioned technical scheme, structural design is reasonable, simple structure, reliable operation, long service life, the leakproofness is good, difficult leaks.
Description
Technical field
The utility model relates to butterfly valve technical field, is specifically related to a kind of eccentric ball-type butterfly valve.
Background technique
In prior art, between the valve seat of tradition butterfly valve and butterfly plate, the cylinder inner plane that adopts coordinates more, there is certain drawback in the fit system of this structure: can not coordinate too tight between butterfly plate and valve seat, if coordinate too tight, valve switch is just very difficult, if do not exert oneself, just be difficult to Open valve or complete throttle down, and throttle down of exerting oneself, butterfly plate is just easy to distortion and causes damage, and working life is short.But, if butterfly plate coordinates defective tightness with valve seat, be then easy to produce and leak.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is to provide that a kind of reasonable in design, structure are simple, the eccentric ball-type butterfly valve of reliable operation, long service life, good airproof performance.
For achieving the above object, the utility model provides following technological scheme: a kind of eccentric ball-type butterfly valve, comprise valve body, ball-type butterfly plate, valve seat, pressure plate loop, butterfly bar, filler and Gland, described ball-type butterfly plate is arranged in valve body, ball-type butterfly plate is connected with butterfly bar, the thickness of described ball-type butterfly plate is greater than the thickness of described valve seat, described valve seat is connected with the inner chamber body internal face of valve body, described pressure plate loop is positioned at valve seat outer end, pressure plate loop is fixedly installed jump ring, the screw thread that pressure plate loop is carried by jump ring or pressure plate loop is connected with valve body, and pressure plate loop interior edge face compresses valve seat, described valve seat has elasticity, and described valve seat is provided with sealing inclined-plane, described ball-type butterfly plate is wholely set the sealing sphere mated with described sealing inclined-plane, by the arc surface that the impacting force of pressure plate loop makes the sealing inclined facial disfigurement on valve seat become to mate with described sealing sphere, the angle of swing of the sealing sphere of described ball-type butterfly plate is 5-9 °.
By adopting technique scheme, make the sealing inclined-plane of valve seat cause plastic deformation by the compression of pressure plate loop and become the arc surface identical with butterfly plate sphere, this process is plastic history, then is just resiliently deformable process toward the deformation process of rear valve base; When valve seat is closed, valve seat is resiliently deformable, and when valve seat is opened, valve seat resiliently deformable is recovered; Ball-type butterfly plate and valve seat are not fragile, long service life, good seal performance, and reasonable in design, structure are simple, reliable operation, not easily leak.
The utility model is set to further: the sealing engagement angle of described ball-type butterfly plate is 6-9 °.By this setting, after ball-type butterfly plate and valve seat coordinate, wearing and tearing are few, long service life.
The utility model is also set to further: the first make contact of described ball-type butterfly plate and valve seat is the mid point on the sealing inclined-plane of valve seat, and makes described valve seat have the compressibility of 8%-10% under the impacting force of pressure plate loop.By this setting, the sealing inclined-plane of valve seat becomes arc shaped surface, forms enough seal pressures, both ensures reliable sealing, ensures again reasonably lighter moment of torsion, thus improves the life-span used further.
The utility model is also set to further: the gyration center of described butterfly bar departs from the sealing inclined-plane setting of described valve seat.By this setting, ensure butterfly bar gyration center and seal sphere centre consistent, valve seat has enough sealed widths.
The utility model is also set to further: the interior edge face of described pressure plate loop has been wholely set locating bump, and the corresponding described locating bump position of described valve seat is provided with the positioning groove mated with described locating bump.By this setting, pressure plate loop is connected reliably with valve seat.
The utility model is also set to further: described filler and Gland are arranged on valve body upper end, and described butterfly bar upper end is socketed with several O type circles.By this setting, both ensured multi-stage sealed insurance, the moment of torsion between butterfly bar and filler can have been reduced again.
The utility model has the advantages that: compared with prior art, the utility model vibrational power flow is more reasonable, make the sealing inclined-plane of valve seat cause plastic deformation by the compression of pressure plate loop and become the arc surface identical with butterfly plate sphere, this process is plastic history, then is just resiliently deformable process toward the deformation process of rear valve base; When valve seat is closed, valve seat is resiliently deformable, and when valve seat is opened, valve seat resiliently deformable is recovered; Ball-type butterfly plate and valve seat are not fragile, long service life, good seal performance, and structure is simple, reliable operation, not easily leak.
Below in conjunction with Figure of description and specific embodiment, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the ball-type butterfly plate of the utility model embodiment and the assembling schematic diagram of valve seat.
Embodiment
See Fig. 1 and Fig. 2, a kind of eccentric ball-type butterfly valve disclosed in the utility model, comprise valve body 1, ball-type butterfly plate 2, valve seat 3, pressure plate loop 4, butterfly bar 5, filler 6 and Gland 7, described ball-type butterfly plate 2 is arranged in valve body 1, ball-type butterfly plate 2 is connected with butterfly bar 5, the thickness of described ball-type butterfly plate 2 is greater than the thickness of described valve seat 3, described valve seat 3 is connected with the inner chamber body internal face of valve body 1, described pressure plate loop 4 is positioned at valve seat 3 outer end, pressure plate loop 4 is fixedly installed jump ring 8, the screw thread that pressure plate loop 4 is carried by jump ring 8 or pressure plate loop 4 is connected with valve body 1, and pressure plate loop 4 interior edge face compresses valve seat 3, described valve seat 3 has elasticity, and described valve seat 3 is provided with sealing inclined-plane 31, described ball-type butterfly plate 2 is wholely set the sealing sphere 21 mated with described sealing inclined-plane 31, the sealing inclined-plane 31 on valve seat 3 is made to be deformed into the arc surface mated with described sealing sphere 21 by the impacting force of pressure plate loop 4, the angle of swing of the sealing sphere 21 of described ball-type butterfly plate 2 is 5-9 °.
As preferably, large gauge valve is connected with valve body 1 from threaded by pressure plate loop 4, and ball-type butterfly plate 2 is connected by existing screw with butterfly bar 5; The angle of swing on the sealing inclined-plane 31 of valve seat 3 is 5-6 °, and ball-type butterfly plate 2, from being opened to closedown, have rotated 90 °, but the real sealing engagement angle with sealing inclined-plane 31 really only has 6-9 °, is equivalent to 1/15 ~ 1/10 of the swing 90o of existing 0 shape ball valve.Therefore after coordinating, wearing and tearing are few, and long service life, is higher than more than 10 times of the working life of ball valve.
For making the utility model structure more reasonable, as preferably, ball-type butterfly plate 2 described in the present embodiment and the first make contact of valve seat 3 are the mid point on the sealing inclined-plane 31 of valve seat 3, and under the impacting force of pressure plate loop 4, make described valve seat 3 have the compressibility of 8%-10%.This technological scheme, both ensured reliable sealing, ensured again reasonably lighter moment of torsion, thus improved the life-span used further.
The sealing inclined-plane 31 that the gyration center of described butterfly bar 5 departs from described valve seat 3 is arranged.Namely to ensure rotating center and sphere centre consistent, also to ensure that valve seat 3 will have enough sealed widths.
The interior edge face of described pressure plate loop 4 has been wholely set locating bump 41, and corresponding described locating bump 41 position of described valve seat 3 is provided with the positioning groove 32 mated with described locating bump 41.The locating bump 41 of pressure plate loop 4 connects with corresponding positioning groove 32, makes pressure plate loop 4 be connected more reliable with valve seat 3.
Described filler 6 and Gland 7 are arranged on valve body 1 upper end, and described butterfly bar 5 upper end is socketed with several O type circles 9.Described filler 6 is arranged in the butterfly bar mounting hole of valve body upper end, and O type circle 9 is arranged between filler, and Gland 7 is connected with valve body 1 by existing bolt, thus compresses filler 6.Both ensured multi-stage sealed insurance, the moment of torsion between butterfly bar 5 and filler 6 can have been reduced again.
During practical application, make the sealing inclined-plane of valve seat cause plastic deformation by the compression of pressure plate loop and become the arc surface identical with butterfly plate sphere, this process is plastic history, then is just resiliently deformable process toward the deformation process of rear valve base; When valve seat is closed, valve seat is resiliently deformable, and when valve seat is opened, valve seat resiliently deformable is recovered; Ball-type butterfly plate and valve seat are not fragile, long service life, good seal performance, and structure is simple, reliable operation, not easily leak.
The eccentric Ball type butlerfly valve of the utility model, is applicable to the valve of DN50 ~ DN1400 bore.The seal pressure that the thickness of valve seat depends on sealed width and sealing wrapping angle and formed, only have rational seal pressure, guarantee reliably seals.The thickness of dish plate is also larger than the thickness of valve seat simultaneously, could contain the sealed width needed for valve seat like this.
Above-described embodiment is to specific descriptions of the present utility model; only for being further described the utility model; can not be interpreted as the restriction to the utility model protection domain, the technician of related domain makes some nonessential improvement according to the content of above-mentioned model utility to the utility model and adjustment all falls within protection domain of the present utility model.
Claims (6)
1. an eccentric ball-type butterfly valve, comprise valve body (1), ball-type butterfly plate (2), valve seat (3), pressure plate loop (4), butterfly bar (5), filler (6) and Gland (7), described ball-type butterfly plate (2) is arranged in valve body (1), ball-type butterfly plate (2) is connected with butterfly bar (5), it is characterized in that: the thickness of described ball-type butterfly plate (2) is greater than the thickness of described valve seat (3), described valve seat (3) is connected with the inner chamber body internal face of valve body (1), described pressure plate loop (4) is positioned at valve seat (3) outer end, pressure plate loop (4) is fixedly installed jump ring (8), the screw thread that pressure plate loop (4) is carried by jump ring (8) or pressure plate loop (4) is connected with valve body (1), and pressure plate loop (4) interior edge face compresses valve seat (3), described valve seat (3) has elasticity, and described valve seat (3) is provided with sealing inclined-plane (31), described ball-type butterfly plate (2) is wholely set the sealing sphere (21) mated with described sealing inclined-plane (31), the sealing inclined-plane (31) on valve seat (3) is made to be deformed into the arc surface mated with described sealing sphere (21) by the impacting force of pressure plate loop (4), the angle of swing of the sealing sphere (21) of described ball-type butterfly plate (2) is 5-9 °.
2. a kind of eccentric ball-type butterfly valve according to claim 1, is characterized in that: the sealing engagement angle of described ball-type butterfly plate (2) is 6-9 °.
3. a kind of eccentric ball-type butterfly valve according to claim 2, it is characterized in that: described ball-type butterfly plate (2) is the mid point on the sealing inclined-plane (31) of valve seat (3) with the first make contact of valve seat (3), and under the impacting force of pressure plate loop (4), make described valve seat (3) have the compressibility of 8%-10%.
4. a kind of eccentric ball-type butterfly valve according to claim 3, is characterized in that: the gyration center of described butterfly bar (5) departs from sealing inclined-plane (31) setting of described valve seat (3).
5. a kind of eccentric ball-type butterfly valve according to claim 3 or 4, it is characterized in that: the interior edge face of described pressure plate loop (4) has been wholely set locating bump (41), described valve seat (3) corresponding described locating bump (41) position is provided with the positioning groove (32) mated with described locating bump (41).
6. a kind of eccentric ball-type butterfly valve according to claim 5, it is characterized in that: described filler (6) and Gland (7) are arranged on valve body (1) upper end, and described butterfly bar (5) upper end is socketed with several O type circles (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520843792.9U CN205118278U (en) | 2015-10-28 | 2015-10-28 | Eccentric ball -type butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520843792.9U CN205118278U (en) | 2015-10-28 | 2015-10-28 | Eccentric ball -type butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205118278U true CN205118278U (en) | 2016-03-30 |
Family
ID=55573892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520843792.9U Expired - Fee Related CN205118278U (en) | 2015-10-28 | 2015-10-28 | Eccentric ball -type butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205118278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221765A (en) * | 2015-10-28 | 2016-01-06 | 浙江顺源阀门有限公司 | A kind of eccentric ball-type butterfly valve |
-
2015
- 2015-10-28 CN CN201520843792.9U patent/CN205118278U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221765A (en) * | 2015-10-28 | 2016-01-06 | 浙江顺源阀门有限公司 | A kind of eccentric ball-type butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20191028 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |