CN205190801U - Seal structure of stop valve - Google Patents
Seal structure of stop valve Download PDFInfo
- Publication number
- CN205190801U CN205190801U CN201520847598.8U CN201520847598U CN205190801U CN 205190801 U CN205190801 U CN 205190801U CN 201520847598 U CN201520847598 U CN 201520847598U CN 205190801 U CN205190801 U CN 205190801U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- utility
- valve clack
- valve rod
- 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
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- Lift Valve (AREA)
Abstract
The utility model relates to a stop valve technical field discloses a seal structure of stop valve, including disk seat, valve clack, valve rod and annular sealing ring, valve rod and valve clack locking joint, on the disk seat is located to the valve clack, and the sealed face between valve clack and the disk seat is for sealed of arc, the lower extreme of valve clack is equipped with cyclic annular briquetting, the lower extreme of cyclic annular briquetting is equipped with annular sealing ring. The utility model discloses an aspect adopts the sealed face of arc, has increased sealing area, and on the other hand is equipped with cyclic annular briquetting at the lower extreme of valve clack, is equipped with annular sealing ring at the lower extreme of cyclic annular briquetting, through the valve clack at the squeezing action of down in -process annular sealing ring with the disk seat surface, improve its sealed effect, annular sealing ring has certain cushioning effect simultaneously, can avoid deformation or damage as the sealed face of arc of forced seal face.
Description
Technical field
The utility model relates to stop valve technical field, more particularly, and particularly a kind of sealing configuration of stop valve.
Background technique
Stop valve belongs to forced seal formula valve, when valve closing, must apply pressure, do not leak with forced seal face to flap.When medium is by when entering valve below flap, the resistance overcome required for steering force is the frictional force of valve rod and filler and the thrust produced by the pressure of medium.
Along with petrochemical industry, coal chemical engineering equipment are constantly to the future development of high parameter, maximization and integration, device needs use the stop valve that a large amount of fast shut-off is pneumatic or surge, the frequency of utilization of stop valve is very high, for traditional stop valve in frequent using process, easily cause distortion or the damage in forced seal face, and then cause the Problem of Failure of stop valve.Therefore, be necessary to improve the sealing configuration of stop valve.
Model utility content
The purpose of this utility model is to provide a kind of sealing configuration can avoiding the distortion in forced seal face or the stop valve of damage.
In order to solve problem set forth above, the technical solution adopted in the utility model is:
A kind of sealing configuration of stop valve, comprise valve seat, flap, valve rod and annular seal ring, described valve rod is locked with flap and is connected, described flap is located on valve seat, and the sealing surface between flap and valve seat is arc sealing surface, the lower end of described flap is provided with ring-type briquetting, and the lower end of described ring-type briquetting is provided with annular seal ring.
According to a preferred embodiment of the present utility model: also comprise wear-resistant gasket, buffer cover, locking nut and spring, the upper end of described flap is provided with the first groove, in described first groove, wear-resistant gasket is installed, described wear-resistant gasket is provided with buffer cover, described valve rod is installed in the first groove by locking nut, and the end of this valve rod is provided with the second groove, described spring fitting is in the second groove, and conflicts in buffer cover in the lower end of this spring.
According to a preferred embodiment of the present utility model: the end of described valve rod is provided with boss, conflict on boss in the end of described locking nut.
Compared with prior art, the beneficial effects of the utility model are: the utility model adopts arc sealing surface on the one hand, add sealing area, ring-type briquetting is provided with on the other hand in the lower end of flap, be provided with annular seal ring in the lower end of ring-type briquetting, by the squeezing action of flap annular seal ring and valve base surface in descending process, improve its sealing effect, annular seal ring has certain buffer function simultaneously, can avoid the distortion as the arc sealing surface in forced seal face or damage.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the sealing configuration of stop valve of the present utility model.
Description of reference numerals: 1, valve seat, 2, flap, 3, wear-resistant gasket, 4, buffer cover, 5, locking nut, 6, spring, 7, valve rod, 8, sealing surface, 9, ring-type briquetting, 10, annular seal ring, the 11, first groove, 12, boss, the 13, second groove.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
Consult shown in Fig. 1, the utility model provides a kind of sealing configuration of stop valve, comprise valve seat 1, flap 2, valve rod 7 and annular seal ring 10, described valve rod 7 is locked with flap 2 and is connected, described flap 2 is located on valve seat 1, and the sealing surface 8 between flap 2 and valve seat 1 is arc sealing surface, the lower end of described flap 2 is provided with ring-type briquetting 9, and the lower end of described ring-type briquetting 9 is provided with annular seal ring 10.
The utility model in use, due to sealing surface 8 is set to arc sealing surface, add sealing area, and be provided with ring-type briquetting 9 in the lower end of flap 2, be provided with annular seal ring 10 in the lower end of ring-type briquetting 9, by flap 2 annular seal ring 10 and squeezing action on valve seat 1 surface in descending process, improve its sealing effect, annular seal ring 10 has certain buffer function simultaneously, can avoid the distortion as the arc sealing surface in forced seal face or damage.
For improving cushioning effect further, the utility model also comprises wear-resistant gasket 3, buffer cover 4, locking nut 5 and spring 6, the upper end of described flap 2 is provided with the first groove 11, in described first groove 11, wear-resistant gasket 3 is installed, described wear-resistant gasket 3 is provided with buffer cover 4, and described valve rod 7 is installed in the first groove 11 by locking nut 5, and the end of this valve rod 7 is provided with the second groove 13, described spring 6 is installed in the second groove 13, and conflicts in buffer cover 4 in the lower end of this spring 6.
The end of described valve rod 7 is provided with boss 12, conflicts on boss 12 in the end of described locking nut 5.
Owing to moving downward (namely stop valve is closed) in process at valve rod 7, valve rod 7 passes to spring 6 and buffer cover 4 power, because valve rod 7 and flap 2 adopt spring bushing pre-pressing structure, and spring 6 has the characteristic of the power of storing and release force, flap 2 can be allowed in closedown situation to have buffer function with the direct collision of valve seat 1, effectively can solve the problem that impact that sealing surface 8 is subject to axial force causes sealing surface to be out of shape or to damage, extend the working life that stop valve is close.
Above-described embodiment is the utility model preferably mode of execution; but mode of execution of the present utility model is not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (3)
1. the sealing configuration of a stop valve, it is characterized in that: comprise valve seat (1), flap (2), valve rod (7) and annular seal ring (10), described valve rod (7) is locked with flap (2) and is connected, described flap (2) is located on valve seat (1), and the sealing surface (8) between flap (2) and valve seat (1) is arc sealing surface, the lower end of described flap (2) is provided with ring-type briquetting (9), and the lower end of described ring-type briquetting (9) is provided with annular seal ring (10).
2. the sealing configuration of stop valve according to claim 1, it is characterized in that: also comprise wear-resistant gasket (3), buffer cover (4), locking nut (5) and spring (6), the upper end of described flap (2) is provided with the first groove (11), in described first groove (11), wear-resistant gasket (3) is installed, described wear-resistant gasket (3) is provided with buffer cover (4), described valve rod (7) is installed in the first groove (11) by locking nut (5), and the end of this valve rod (7) is provided with the second groove (13), described spring (6) is installed in the second groove (13), and conflict in buffer cover (4) in the lower end of this spring (6).
3. the sealing configuration of stop valve according to claim 2, is characterized in that: the end of described valve rod (7) is provided with boss (12), conflicts on boss (12) in the end of described locking nut (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520847598.8U CN205190801U (en) | 2015-10-28 | 2015-10-28 | Seal structure of stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520847598.8U CN205190801U (en) | 2015-10-28 | 2015-10-28 | Seal structure of stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205190801U true CN205190801U (en) | 2016-04-27 |
Family
ID=55783792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520847598.8U Expired - Fee Related CN205190801U (en) | 2015-10-28 | 2015-10-28 | Seal structure of stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205190801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059302A (en) * | 2020-01-16 | 2020-04-24 | 山东超力阀门制造有限公司 | Stamping-resistant sealing stop valve |
-
2015
- 2015-10-28 CN CN201520847598.8U patent/CN205190801U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059302A (en) * | 2020-01-16 | 2020-04-24 | 山东超力阀门制造有限公司 | Stamping-resistant sealing stop 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20211028 |