CN2580222Y - Self centering valve seat structure - Google Patents
Self centering valve seat structure Download PDFInfo
- Publication number
- CN2580222Y CN2580222Y CN02261307.2U CN02261307U CN2580222Y CN 2580222 Y CN2580222 Y CN 2580222Y CN 02261307 U CN02261307 U CN 02261307U CN 2580222 Y CN2580222 Y CN 2580222Y
- Authority
- CN
- China
- Prior art keywords
- valve seat
- valve
- conical seal
- valve body
- spool
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 238000010276 construction Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K2200/00—Details of valves
- F16K2200/10—Means for compensation of misalignment between seat and closure member
- F16K2200/102—Means for compensation of misalignment between seat and closure member seat self-aligning to closure member
Landscapes
- Sliding Valves (AREA)
- Lift Valve (AREA)
Abstract
The utility model relates to a self centering valve seat structure which comprises a valve body, a valve seat which is arranged at the lower part of the inner part of the valve body, a valve core which is arranged at the center of the valve seat and a sheet gasket which is arranged at the bottom of the valve seat. The utility model is characterized in that the self centering valve seat structure also comprises a fixed cage which is in a drum shape, a plurality of holes are arranged on the drum wall, and an upper and a lower end faces of the fixed cage are mutually parallel. Steps are arranged at the lower part of the inner part of the valve body, a conical seal face is arranged on the upper part of the inner wall of the valve seat, and a ladder-shaped groove which is used for embedding the sheet gasket is arranged at the lower part of the outer wall of the valve seat and is provided with the sheet gasket inside. A conical seal face which is matched with the conical seal face of the valve seat is arranged at the lower part of the valve core, the valve seat is arranged on a step plane of the valve body, and the fixed cage is arranged on the valve seat. The valve core is extended into the fixed cage and is arranged in the valve seat, and the conical seal face of the valve core is inlaid on the conical seal face of the valve seat. Because line sealing mode is adopted as a sealing pair of the utility model, the valve seat and the valve core are in tight sealing mode. Because the clearance fit is arranged between the valve body and the valve seat, the self centering of the valve seat can be automatically corrected and realized, and the utility model also has the advantages of novel design and easy assembly and disassembly.
Description
Technical field
The utility model relate to a kind of modulating valve from the centering valve seat construction.
Background technique
The valve seat of existing modulating valve, by valve seat outer wall and valve interior wall corresponding being threaded mutually, valve seat is tightened on valve body rear valve base fixed-site, when if not same center is paid in the sealing of spool and valve seat, its sealing can cause its sealing to pay the cooperation imprecision, and sealing is paid to be needed just can reach seal request through grinding, this structure, cause complex process, the loading and unloading difficulty is after the demolition maintenance, be difficult to reach seal request, working life is short.
Summary of the invention
It is a kind of improved from the centering valve seat construction that the purpose of this utility model is to provide, and it can solve the imprecise shortcoming of cooperation that exists in valve body in the prior art modulating valve, valve seat, the spool binding structure, and it is tight to make it sealing, easy to loading and unloading.
The purpose of this utility model is achieved in that
A kind of from the centering valve seat construction, comprising: valve body, be arranged on the valve seat of bottom in the valve body, be arranged on the valve seat center spool, be positioned at the sealing washer of valve seat bottom; Be characterized in also comprising a fixing cage;
Described fixedly cage is drum shape, and fixedly cage bucket wall is provided with a plurality of holes, and fixedly the upper-end surface of cage and lower end surface are parallel to each other; The bottom is provided with the step of fixed valve base in the described valve body; Described valve base inner wall top is provided with conical seal (contact) face; Valve seat outer wall bottom is provided with the trapezoidal groove of setting the sealing washer, and the sealing washer is set in the trapezoidal groove of valve seat; Described spool bottom is provided with and close suitable conical seal (contact) face of valve seat taper; Described valve seat is arranged on the step plane of valve body, and fixedly cage is arranged on the valve seat, and spool stretches into fixedly cage, inserts in the valve seat, and the conical seal (contact) face of spool and the conical seal (contact) face of valve seat are inlayed.
Above-mentioned automatically in the valve seat construction, wherein, be provided with Spielpassung between the step internal diameter of the fixed valve base of setting and the valve seat external diameter in the described valve body.
Above-mentioned automatically in the valve seat construction, wherein, the step plane of described valve body is vertical mutually with the cylinder wall of valve seat.
Above-mentioned automatically in the valve seat construction, wherein, the cone angle of the conical seal (contact) face of described spool bottom is less than the cone angle of valve base inner wall top seal face.
The automatically middle valve seat construction of the utility model makes it compared with prior art owing to adopted above-mentioned technological scheme, has tangible advantage and good effect.The utility model is owing to be provided with the sealing surface of different amount on valve seat and spool side, be provided with Spielpassung in valve seat external diameter and valve block internal diameter, when valve seat assembles with spool during different axle center, available spool firmly clashes into valve seat, spool and valve seat cone seal are paid when cooperating, can realize that valve seat is from centering from the position of normal moveout correction valve seat.
Description of drawings
By following to the utility model automatically in an embodiment of valve seat construction in conjunction with the description of its accompanying drawing, can further understand the purpose of this utility model, specific structural features and advantage.Wherein, accompanying drawing is:
Fig. 1 is according to the schematic representation from the centering valve seat construction that the utility model proposes.
Embodiment
See also shown in Figure 1, from the centering valve seat construction, by valve body 1, valve seat 2, spool 3, the sealing washer 4; Fixedly cage 5 is formed.The bottom is provided with the step 11 of fixed valve base 2 in the valve body 1; Valve seat 2 upper inside wall are provided with conical seal (contact) face 21; Valve seat 2 outer wall bottoms are provided with the groove 22 of setting the sealing washer, the groove 22 built-in sealing washers 4 of valve seat 2; Spool 3 bottoms are provided with and close 21 suitable conical seal (contact) face 31 of valve seat 2 tapers; Fixedly cage 5 is made as drum shape, and the bucket wall is provided with a plurality of holes, and fixedly the upper and lower end face of cage is parallel to each other.
When using, valve seat 2 is arranged on the step plane of valve body 1, and the cone angle of the conical seal (contact) face 31 of spool 3 bottoms is less than the cone angle of valve seat 2 upper inside wall sealing surfaces 21; Thereby guarantee that it is linear sealing that sealing is paid, when small dislocation takes place in the center of valve seat 2 and spool 3, because valve seat 2 external diameters and valve body 1 internal diameter are provided with Spielpassung, available spool 3 firmly clashes into valve seat 2, spool 3 and valve seat 2 cone seals are paid when cooperating, can be from the position of normal moveout correction valve seat 2, it is coaxial that spool 3 and valve seat 2 cone seals are paid, and realizes that valve seat is from centering.
In sum, the utility model because sealing is paid to linear sealing, makes valve seat and spool be tight envelope from the centering valve seat construction; Owing to be provided with the gap between the internal diameter of valve body and the external diameter of valve seat,, can realize that valve seat is from centering from the position of normal moveout correction valve seat when spool inserted valve seat center; And design new Ying, easy to loading and unloading, therefore very practical.
Claims (4)
1, a kind of from the centering valve seat construction, comprising: valve body (1), be arranged on the valve seat (2) of the interior bottom of valve body (1), be arranged on valve seat (2) center spool (3), be positioned at the sealing washer (4) of valve seat (2) bottom; It is characterized in that: also comprise a fixing cage (5);
Described fixedly cage (5) is drum shape, and fixedly cage (5) bucket wall is provided with a plurality of holes, and fixedly the upper-end surface and the lower end surface of cage (5) are parallel to each other;
The interior bottom of described valve body (1) is provided with the step (11) of fixed valve base (2);
Described valve seat (2) upper inside wall is provided with conical seal (contact) face (21); Valve seat (2) outer wall bottom is provided with the trapezoidal groove (22) of setting the sealing washer, and sealing washer (4) is set in the trapezoidal groove (22) of valve seat (2);
Described spool (3) bottom is provided with and close (21) suitable conical seal (contact) face (31) of valve seat (2) taper;
Described valve seat (2) is arranged on step (11) plane of valve body (1), fixedly cage (5) is arranged on the valve seat (2), spool (3) stretches into fixedly cage (5), inserts in the valve seat (2), and the conical seal (contact) face (31) of spool (3) is inlayed with the conical seal (contact) face (21) of valve seat (2).
2, automatically middle valve seat construction according to claim 1 is characterized in that: be provided with Spielpassung between step (11) internal diameter of the fixed valve base (2) that is provided with in the described valve body (1) and valve seat (2) external diameter.
3, automatically middle valve seat construction according to claim 1, it is characterized in that: step (11) plane (111) of described valve body (1) is vertical mutually with the cylinder wall (23) of valve seat (2).
4, automatically middle valve seat construction according to claim 1, it is characterized in that: the cone angle of the conical seal (contact) face (31) of described spool (3) bottom is less than the cone angle of valve seat (2) upper inside wall sealing surface (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02261307.2U CN2580222Y (en) | 2002-11-06 | 2002-11-06 | Self centering valve seat structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02261307.2U CN2580222Y (en) | 2002-11-06 | 2002-11-06 | Self centering valve seat structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2580222Y true CN2580222Y (en) | 2003-10-15 |
Family
ID=33728127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02261307.2U Expired - Fee Related CN2580222Y (en) | 2002-11-06 | 2002-11-06 | Self centering valve seat structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2580222Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404927C (en) * | 2004-01-13 | 2008-07-23 | 费希尔控制产品国际有限公司 | Integrated post-guided seat ring assembly |
| CN103925376A (en) * | 2014-03-05 | 2014-07-16 | 海盐县于城镇于北五金厂 | Throttle valve |
| CN105221759A (en) * | 2015-10-23 | 2016-01-06 | 苏州金纬化纤工程技术有限公司 | For the stop valve of Spinning Equipments |
| CN105370980A (en) * | 2015-09-16 | 2016-03-02 | 吴忠仪表有限责任公司 | Self-centering valve seat |
| CN106090251A (en) * | 2016-08-26 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | A kind of anti-wear valve core |
| CN106246940A (en) * | 2016-08-26 | 2016-12-21 | 成都欧浦特控制阀门有限公司 | A kind of plunger piston type valve core |
| CN106286867A (en) * | 2016-08-26 | 2017-01-04 | 成都欧浦特控制阀门有限公司 | A kind of spool for cylinder control valve |
| CN107110381A (en) * | 2014-11-07 | 2017-08-29 | 世伟洛克公司 | Self-aligning valve seal |
| CN110454577A (en) * | 2019-08-02 | 2019-11-15 | 南京清研高分子新材料有限公司 | High-temperature sealing valve is used in polyether sulphone production |
-
2002
- 2002-11-06 CN CN02261307.2U patent/CN2580222Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404927C (en) * | 2004-01-13 | 2008-07-23 | 费希尔控制产品国际有限公司 | Integrated post-guided seat ring assembly |
| CN103925376A (en) * | 2014-03-05 | 2014-07-16 | 海盐县于城镇于北五金厂 | Throttle valve |
| CN107110381A (en) * | 2014-11-07 | 2017-08-29 | 世伟洛克公司 | Self-aligning valve seal |
| CN105370980A (en) * | 2015-09-16 | 2016-03-02 | 吴忠仪表有限责任公司 | Self-centering valve seat |
| CN105221759A (en) * | 2015-10-23 | 2016-01-06 | 苏州金纬化纤工程技术有限公司 | For the stop valve of Spinning Equipments |
| CN106090251A (en) * | 2016-08-26 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | A kind of anti-wear valve core |
| CN106246940A (en) * | 2016-08-26 | 2016-12-21 | 成都欧浦特控制阀门有限公司 | A kind of plunger piston type valve core |
| CN106286867A (en) * | 2016-08-26 | 2017-01-04 | 成都欧浦特控制阀门有限公司 | A kind of spool for cylinder control valve |
| CN106090251B (en) * | 2016-08-26 | 2018-09-28 | 成都欧浦特控制阀门有限公司 | A kind of anti-wear valve core |
| CN106246940B (en) * | 2016-08-26 | 2018-09-28 | 成都欧浦特控制阀门有限公司 | A kind of plunger piston type valve core |
| CN106286867B (en) * | 2016-08-26 | 2018-10-02 | 成都欧浦特控制阀门有限公司 | A kind of spool for cylinder control valve |
| CN110454577A (en) * | 2019-08-02 | 2019-11-15 | 南京清研高分子新材料有限公司 | High-temperature sealing valve is used in polyether sulphone production |
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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: 20031015 Termination date: 20101106 |