CN201034183Y - Soft-sealing standing ball valve seat structure - Google Patents
Soft-sealing standing ball valve seat structure Download PDFInfo
- Publication number
- CN201034183Y CN201034183Y CNU2007200392874U CN200720039287U CN201034183Y CN 201034183 Y CN201034183 Y CN 201034183Y CN U2007200392874 U CNU2007200392874 U CN U2007200392874U CN 200720039287 U CN200720039287 U CN 200720039287U CN 201034183 Y CN201034183 Y CN 201034183Y
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- valve seat
- sealing
- soft seal
- ring
- face
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Abstract
The utility model discloses a flexible-sealed fixing ball valve seat structure, which comprises a valve seat body; a ring-shaped sealing groove is arranged axially on the end face of the side close to the valve seat body; a flexible sealing ring is arranged in the ring-shaped groove, and the binding face of the flexible sealing ring and the ball is a sealing surface. The utility model is characterized in comprising a fixing ring, which is fixed with the end face of the valve seat through the axial-distributed fasteners, the end close to the ball extends to the sealing part along the end face and is matched with the walls of the ring-shaped sealing groove of the valve seat on the other side of the sealing surface, thereby forming an upper lip sealing structure and a lower lip sealing structure. The utility model provides metallic protection for the flexible sealing ring by the additional fixing rings, prevents the fixing particles from scoring the flexible sealing ring, prolongs the service life, simultaneously makes use of the sealing structure to form a primary metal sealing, enabling fire protection and sealing.
Description
Technical field
The utility model relates to a kind of valve seat of ball valve, is specifically related to a kind of valve seat construction of soft seal fixing ball valve.
Background technique
Difference according to sealed material, can be divided into soft seal and hard sealing two classes to ball valve, general soft seal valve be meant spool or valve seat both one of to adopt materials such as teflon or rubber be the main valve of making sealing configuration, be generally and on the end face of the nearly spheroid end of valve seat, axially offer closure gasket groove, be provided with the soft seal ring in the annular groove, the applying of soft seal ring and spheroid constitutes the sealing surface of valve seat and spheroid, thereby utilize the softer soft seal ring compressive deformation of material to realize sealing, it is better that its sealing effect seals (the applying sealing between metal material) more firmly, cuts off effective.But because the wear resistance of material own is not enough, the part that soft seal is exposed in valve pocket is easily scratched through the fluid particle thing in the valve, and in case scratch, sealing effect can sharply descend, therefore it has been generally acknowledged that, adopt the valve of this soft sealing structure to be not suitable for being used for carrying the pipeline that contains more material medium; And on the other hand, when the soft seal ring was installed, the air in the closure gasket groove was difficult for discharging, and can cause the applying situation after the soft seal ring is installed not good, and in use easily come off, and influenced the sealing effect of soft seal ring thus, shortened the working life of valve.
Owing to the existence of above-mentioned defective, limited the Applicable scope of soft seal valve, most of users can only use hard sealing instead and replace, but actual sealing effect is not so good as soft seal, thereby reduced the performance of ball valve.
Summary of the invention
The utility model purpose provides a kind of long service life, and the soft seal valve seat of fixed ball valve structure of good sealing effect.
For achieving the above object, the technical solution adopted in the utility model is: a kind of soft seal valve seat of fixed ball valve structure, comprise the valve seat body, axially offer closure gasket groove on the end face of the nearly spheroid side of described valve seat body, be provided with the soft seal ring in the annular groove, the faying surface of soft seal ring and spheroid is a sealing surface, also comprise a retaining ring, this retaining ring is fixed through axial arranged fastening piece and valve seat body end face, and its nearly spheroid end extends to described sealing surface place along end face, cooperate with the cell wall of the valve base sealing annular groove of sealing surface opposite side, constitute upper and lower lip seal structure.
In the technique scheme, the nearly spheroid end of described retaining ring extends to described sealing surface place (sealing surface that valve seat and spheroid are fitted and formed), covered and be positioned at the soft seal ring and expose part outside the valve base sealing groove (removing the soft sealing face of fitting) with spheroid, cooperate with the cell wall of valve base sealing annular groove, form the upper and lower lip seal structure of parcel soft seal ring, thereby for the soft seal ring provides protection, prevent that solid particulate matter (as sand, welding slag, iron filings etc.) enters the soft seal ring in the fluid line, and then scratch the soft seal ring; On the other hand, the lip seal structure that retaining ring and cell wall constitute for ball valve sealing provides one primary metals sealing, also is applicable to the sealing under the state of catching fire, and in conjunction with the secondary seal of soft seal ring, guarantees the zero leakage of ball valve.
In the technique scheme, described fastening piece is made up of locating stud, spring washer and screw, described locating stud one end runs through retaining ring to valve seat body respective pin hole, and the other end is arranged with spring washer and by screw, is provided with the distortion space between retaining ring and valve seat body end face.Utilize the resiliently deformable of spring washer, the adjustment to the distortion pore size between retaining ring and valve seat end face is realized in the position of adjusting screw, prevents retaining ring getting loose under long-term work simultaneously.
In the technique scheme, described soft seal groove is the groove that one or two side channel wall is provided with hangnail, and the soft seal ring is pressed into groove, utilizes the hangnail structure can prevent that seal ring from coming off in the selfsealings groove when spheroid moves.
In the technique scheme, the bottom land place of described closure gasket groove has exhaust port, and this exhaust port is communicated to the gap location of valve seat and valve body body.When the soft seal ring is pressed in the annular groove, the original air in the removal slot, just being pressed into of soft seal ring, and realize fitting tightly of seal ring and valve seat body.
Because the technique scheme utilization, the advantage that the utility model compared with prior art has is:
1, because the utility model has added retaining ring being positioned at valve seat body end, utilize retaining ring extension part and cooperating of soft seal groove cell wall to constitute the lip seal structure, wrapped up the soft seal ring exposed part except that sealing surface, play the effect of protection soft seal ring on the one hand, prevent that solid particulate matter causes scuffing to the soft seal ring in the fluid, prolong the working life of seal ring; The metal primary seal of lip seal structure formation also is applicable to the sealing under the state of catching fire on the other hand;
2, the metal primary seal matches with the secondary seal of soft seal ring, forms the complementation of two class sealing characteristics, and primary seal remedies the shortcoming that wears no resistance of soft seal ring, and the soft seal environmental protection has hindered advantage of good sealing effect;
3, constitute the groove have hangnail owing to have hangnail on the soft seal cell wall, the soft seal ring is pressed into groove after, utilize the hangnail structure can prevent that seal ring from coming off in the selfsealings groove when spheroid moves;
4, offer at the bottom land of soft seal groove and pass to valve seat body and valve body boundary gap Wai Chu, when the soft seal ring is pressed in the annular groove, the original air in the removal slot, just the soft seal ring is pressed into, and realize fitting tightly of seal ring and valve seat body, improve sealability.
Description of drawings
Accompanying drawing 1 is the utility model embodiment one a partial schematic sectional view;
Accompanying drawing 2 is the partial enlarged drawing of Fig. 1.
Wherein: 1, valve seat body; 2, spheroid; 3, sealing surface; 4, valve body; 5, retaining ring; 6, soft seal ring; 7, screw; 8, spring washer; 9, locating stud; 10, exhaust port; 11, the groove of band hangnail.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: shown in accompanying drawing 1,2, a kind of soft seal valve seat of fixed ball valve structure, comprise valve seat body 1, axially offer closure gasket groove on the end face of nearly spheroid 2 sides of described valve seat body, this annular groove is the groove 11 that one or two side channel wall is provided with 3 layers of band hangnail, soft seal ring 6 is pressed in the groove, utilizes the hangnail structure can prevent that seal ring from coming off in the selfsealings groove when spheroid moves; The faying surface of soft seal ring and spheroid is a sealing surface 3, described valve seat end face is provided with retaining ring 5, this retaining ring is fixed through axial arranged fastening piece and valve seat end face, and its nearly spheroid end extends to described sealing surface place along end face, cooperate with the cell wall of the valve base sealing annular groove of sealing surface opposite side, constitute upper and lower lip seal structure.Described fastening piece is made up of locating stud 9, spring washer 8 and screw 7, and described locating stud one end runs through retaining ring to the valve seat respective pin hole, and the other end is arranged with spring washer and by screw, is provided with the distortion space between retaining ring and valve seat end face.The bottom land place of described closure gasket groove has exhaust port 10, and this exhaust port is communicated to the gap location of valve seat and valve body 4, when the soft seal ring is pressed in the annular groove, and the original air in the removal slot, just being pressed into of soft seal ring, and realize fitting tightly of seal ring and valve seat.
Claims (4)
1. soft seal valve seat of fixed ball valve structure, comprise valve seat body [1], axially offer closure gasket groove on the end face of the nearly spheroid of described valve seat body [2] side, be provided with soft seal ring [6] in the annular groove, the faying surface of soft seal ring and spheroid is sealing surface [3], it is characterized in that: also comprise a retaining ring [5], this retaining ring is fixed through axial arranged fastening piece and valve seat body end face, and its nearly spheroid end extends to described sealing surface place along end face, cooperate with the cell wall of the valve base sealing annular groove of sealing surface opposite side, constitute upper and lower lip seal structure.
2. soft seal valve seat of fixed ball valve structure according to claim 1, it is characterized in that: described fastening piece is made up of locating stud [9], spring washer [8] and screw [7], described locating stud one end runs through retaining ring to the valve seat respective pin hole, the other end is arranged with spring washer and by screw, is provided with the distortion space between retaining ring and valve seat body end face.
3. soft seal valve seat of fixed ball valve structure according to claim 1 is characterized in that: described soft seal groove is the groove [11] that one or two side channel wall is provided with hangnail.
4. soft seal valve seat of fixed ball valve structure according to claim 1 is characterized in that: the bottom land place of described closure gasket groove has exhaust port [10], and this exhaust port is communicated to the gap location of valve seat body and valve body [4].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200392874U CN201034183Y (en) | 2007-06-01 | 2007-06-01 | Soft-sealing standing ball valve seat structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200392874U CN201034183Y (en) | 2007-06-01 | 2007-06-01 | Soft-sealing standing ball valve seat structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201034183Y true CN201034183Y (en) | 2008-03-12 |
Family
ID=39195074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200392874U Expired - Fee Related CN201034183Y (en) | 2007-06-01 | 2007-06-01 | Soft-sealing standing ball valve seat structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201034183Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278491A (en) * | 2010-06-10 | 2011-12-14 | 沃泰阀门(昆山)有限公司 | Soft and hard dual-seal fixed ball valve |
| CN102644763A (en) * | 2012-05-10 | 2012-08-22 | 温州蓝天管件阀门有限公司 | Valve seat structure with adjustable pretension |
| CN102808965A (en) * | 2012-08-21 | 2012-12-05 | 上海开维喜阀门集团有限公司 | Embedded valve seat seal ring |
| CN103322233A (en) * | 2013-07-05 | 2013-09-25 | 昆山维萨阀门有限公司 | Valve applied in ultralow-temperature environments |
| CN105465401A (en) * | 2015-12-31 | 2016-04-06 | 宁波丰基特种阀门有限公司 | Ball valve easy to replace valve seat |
| CN106321880A (en) * | 2016-10-27 | 2017-01-11 | 苏州纽威阀门股份有限公司 | Sealing structure for seal valve |
| CN107387825A (en) * | 2017-07-31 | 2017-11-24 | 陈炯亮 | A kind of pressure-reducing valve |
| CN109268574A (en) * | 2018-11-05 | 2019-01-25 | 江苏圣泰阀门有限公司 | A kind of novel soft sealing ball valve |
-
2007
- 2007-06-01 CN CNU2007200392874U patent/CN201034183Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278491A (en) * | 2010-06-10 | 2011-12-14 | 沃泰阀门(昆山)有限公司 | Soft and hard dual-seal fixed ball valve |
| CN102644763A (en) * | 2012-05-10 | 2012-08-22 | 温州蓝天管件阀门有限公司 | Valve seat structure with adjustable pretension |
| CN102644763B (en) * | 2012-05-10 | 2014-09-03 | 温州蓝天管件阀门有限公司 | Valve seat structure with adjustable pretension |
| CN102808965A (en) * | 2012-08-21 | 2012-12-05 | 上海开维喜阀门集团有限公司 | Embedded valve seat seal ring |
| CN103322233A (en) * | 2013-07-05 | 2013-09-25 | 昆山维萨阀门有限公司 | Valve applied in ultralow-temperature environments |
| CN105465401A (en) * | 2015-12-31 | 2016-04-06 | 宁波丰基特种阀门有限公司 | Ball valve easy to replace valve seat |
| CN106321880A (en) * | 2016-10-27 | 2017-01-11 | 苏州纽威阀门股份有限公司 | Sealing structure for seal valve |
| CN106321880B (en) * | 2016-10-27 | 2019-04-09 | 苏州纽威阀门股份有限公司 | A kind of sealing structure for sealing valve sealing |
| CN107387825A (en) * | 2017-07-31 | 2017-11-24 | 陈炯亮 | A kind of pressure-reducing valve |
| CN107387825B (en) * | 2017-07-31 | 2024-04-05 | 陈炯亮 | Pressure reducing valve |
| CN109268574A (en) * | 2018-11-05 | 2019-01-25 | 江苏圣泰阀门有限公司 | A kind of novel soft sealing ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215129 No. 999, Xiangjiang Road, New District, Jiangsu, Suzhou Patentee after: Neway Valve (Suzhou) Co., Ltd. Address before: 215129 No. 999, Xiangjiang Road, New District, Jiangsu, Suzhou Patentee before: Suzhou Neway Valve Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080312 Termination date: 20160601 |