CN207421358U - A kind of anti-leakage valve - Google Patents
A kind of anti-leakage valve Download PDFInfo
- Publication number
- CN207421358U CN207421358U CN201721448409.5U CN201721448409U CN207421358U CN 207421358 U CN207421358 U CN 207421358U CN 201721448409 U CN201721448409 U CN 201721448409U CN 207421358 U CN207421358 U CN 207421358U
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- valve
- spool
- sealing ring
- groove
- fluid
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Abstract
The utility model discloses a kind of anti-leakage valve, including valve body (1), the spool (2) being installed in the valve body (1), with the spool (2) matched valve seat (3) and valve cage (4), the valve cage (4) and the valve seat (3) are in mating connection, annular notch (5) is provided on the valve cage (4), sealing ring (6) is provided in the annular notch (5), the sealing ring (6) can fit with the spool (2) outer circumferential surface (17), the sealing ring (6) opens up fluted (9), the barrier (8) is provided at least one aperture (10) communicated with the groove (9), the valve cage (4) includes molding barrier (8) in conjunction, the barrier (8) partly blocks the sealing ring (6).This valve can still keep sealing after abrasion leakage occurs for the contact surface of spool (2) and valve seat (3), and Fluid pressure is bigger, and sealing effect is better.
Description
Technical field
The utility model is related to a kind of anti-leakage valves.
Background technology
Direct Travel cage valve has switching mode and adjustment type etc., and the closing of valve at present is mainly contacted by spool with valve seat
After sealing surface (line) completely attaches to afterwards, reach closing purpose with the passage after valve before stop valve, due to spool and the frequency of valve seat
It is numerous to be contacting and separating, easily so that contact surface abrasion, so as to leak, can also trigger security incident when serious, therefore usually
Sealing ring can be equipped with to strengthen sealing effect, but when Fluid pressure becomes larger, the sealing effect of sealing ring can be deteriorated.
Utility model content
The purpose of this utility model is that for drawbacks described above of the prior art, a kind of anti-leakage valve is provided,
In the case that the contact surface of spool and valve seat is worn, it can also keep sealing well, and its sealing effect is not because of fluid
The increase of pressure and weaken.
To realize above-mentioned purpose of utility model, the utility model employs following technical solution：A kind of anti-leakage valve, bag
It includes valve body, be installed on the in vivo spool of the valve, with the matched valve seat of the spool and for the valve cage that fluid flows into, institute
It states valve cage with the valve seat to be connected, annular notch is provided on the valve cage, sealing ring is provided in the annular notch, it is described
Sealing ring can be bonded with the spool outer circumferential surface, and the sealing ring opens up fluted, and fluid can be flowed into the groove and to recessed
The inner wall of slot applies pressure and the outer circumferential surface of sealing ring and the spool is fitted closely.
In addition, the utility model further includes following attached technical scheme：
The valve cage includes molding barrier in conjunction, and the barrier is set close to the spool and part is supported
By the sealing ring.
The barrier is provided at least one aperture, and the aperture and the groove and fluid are homogeneously intercommunicated.
The sealing ring is equipped with contact site, and the contact site protrudes from the barrier, and the contact site can be with the valve
Core outer circumferential surface is bonded.
The section of the sealing ring is substantially u-shaped.
The fluid has a fluid high-pressure area, and the opening of the groove is towards fluid high-pressure area.
Annular elastomeric circle is provided in the groove.
The diameter of the annular elastomeric circle is equal to or slightly greater than the groove.
The valve seat offers annular groove, and the annular groove is engaged with the annular notch and accommodates the sealing jointly
Circle.
Compared with the prior art, the utility model has the advantage of：Valve has spool and valve base sealing and sealing ring
With the double sealing effect of seal spool；Even if in the case of being revealed in spool and valve seat because of abrasion, sealing ring according to
Old to play sealing effect, moreover, when Fluid pressure is bigger, the sealing effect of sealing ring is better, so as to effectively prevent
The leakage of valve, improves leakproofness.
Description of the drawings
Fig. 1 is structure diagram when the utility model anti-leakage valve is opened.
Fig. 2 is structure diagram when the utility model anti-leakage valve is closed.
Fig. 3 is the partial enlarged view in A portions in Fig. 2.
Fig. 4 is the structure diagram of sealing ring in Fig. 1 and Fig. 2.
Fig. 5 is the partial enlarged view in B portions in Fig. 4.
Specific embodiment
Technical solutions of the utility model are made below in conjunction with preferred embodiment and its attached drawing further nonrestrictive detailed
Explanation.
As shown in the figure, corresponding to a kind of preferred embodiment of the utility model anti-leakage valve, including valve body 1, spool 2,
Be engaged with spool 2 limitation fluid flow valve seat 3, for fluid flow into valve cage 4,1 upper end of sealed valve body valve deck 13 with
And the valve rod 14 that driving spool 2 moves up and down, valve body 1 is interior to be equipped with fluid passageway 1a, and spool 2 is mounted in the 1a of fluid passageway and can
To move up and down, valve cage 4 offers the duct 4a communicated with fluid passageway 1a, and duct 4a is also fluid high-pressure area 4a, valve cage 4 with
Valve seat 3 is in mating connection.When spool 2 is in contact with valve seat 3, fluid passageway 1a is closed, and prevents the fluid stream in valve body 1
Go out；When spool 2 is separated with valve seat 3, fluid can normally circulate, and can be according to duct on 2 lower face of spool and valve cage 4
The flow of the position relationship control fluid of 4a.
4 lower surface of valve cage offers annular notch 5, and annular groove 7 is offered on valve seat 3, in annular notch 5 and annular groove 7
It is engaged in the cavity to be formed and is provided with sealing ring 6.Valve cage 4 further includes barrier 8, and barrier 8 is integrally formed with valve cage 4,
Positioned at annular notch 5 close to the position of 2 outer circumferential surface 16 of spool, for preventing sealing ring 6 from coming off from annular notch 5.Sealing ring 6
Surface offers 18 grooves 9 towards higher-pressure region 4a of opening, and the section of sealing ring 6 is substantially u-shaped.It is offered on barrier 8
The aperture 10 communicated with groove 9, aperture 10, groove 9 and fluid passageway 1a are interconnected.Annular elastomeric is provided in groove 9
Circle 11, annular elastomeric circle 11 have certain elasticity, metal material may be employed or other plastic materials are made, diameter is preferably
With groove 9 be of same size or width slightly larger than groove 9 so that sealing ring 6 in annular notch 5 installation it is more firm
It leans on, it is also more close with 2 outer circumferential surface 16 of spool patch.Sealing ring 6 is additionally provided with the contact site 12 for protruding from barrier 8, contact
12 top of portion is equipped with arc angling 15, and arc angling 15 can make spool 2 more smoothly move up and down, prevent spool 2 by contact site
12 damage by pressure.When spool 2 is moved to valve seat 3, spool 2 is first contacted with contact site 12, is contacted afterwards with valve seat 3.
When the valve is closed, i.e., when spool 2 is contacted with valve seat 3, fluid flow through orifices road 4a and 2 outer wall of spool lead to fluid
The gap that road 1a is formed, is entered by aperture 10 in groove 9 afterwards, can be to groove 9 since fluid has certain pressure
Inner wall 17 applies pressure, and the contact site 12 for forcing sealing ring 6 is flared out, so as to tightly touch the outer wall of spool 2.At this point,
Even if the contact surface of spool 2 and valve seat 3 during abrasion because revealing, since sealing ring 6 has sealed the fluid above it, also just protect
Having demonstrate,proved the valve will not reveal, moreover, when Fluid pressure is bigger, contact site 12 contacts more with 2 outer circumferential surface 16 of spool
To be close, sealing effect is also better.When the valve is open, fluid normally flows out valve from duct 4a through fluid passageway 1a.
The anti-leakage valve of the utility model passes through rational structure design so that valve have spool and valve base sealing with
And the double sealing effect of sealing ring and seal spool；Even if in the case where spool and valve seat are revealed because of abrasion,
Sealing ring still can play sealing effect, moreover, when Fluid pressure is bigger, the sealing effect of sealing ring is better, so as to have
Effect prevents the leakage of valve, improves leakproofness.
It is pointed out that above-mentioned preferred embodiment is only to illustrate the technical concepts and features of the utility model, purpose
It is the content for allowing person skilled in the art that can understand the utility model and implements according to this, can not this reality be limited with this
With new protection domain.All equivalent change or modifications made according to the utility model Spirit Essence, should all cover in this reality
Within new protection domain.
Claims (9)
1. a kind of anti-leakage valve, including valve body (1), the spool (2) being installed in the valve body (1), with the spool (2) phase
The valve seat (3) of cooperation and the valve cage (4) flowed into for fluid, the valve cage (4) are connected with the valve seat (3), the valve cage
(4) be provided with annular notch (5) on, be provided with sealing ring (6) in the annular notch (5), the sealing ring (6) can with it is described
Spool (2) outer circumferential surface (16) is bonded, it is characterised in that：The sealing ring (6) opens up fluted (9), and fluid can flow into described recessed
Apply pressure in slot (9) and to the inner wall (17) of groove (9) and so that sealing ring (6) and the outer circumferential surface (16) of the spool (2) are tight
Closely connected conjunction.
2. according to anti-leakage valve described in claim 1, it is characterised in that：The valve cage (4) includes molding resistance in conjunction
Retaining wall (8), the barrier (8) set close to the spool (2) and partly against the sealing ring (6).
3. according to anti-leakage valve described in claim 2, it is characterised in that：The barrier (8) is provided at least one aperture
(10), the aperture (10) and the groove (9) and fluid are homogeneously intercommunicated.
4. according to anti-leakage valve described in claim 2, it is characterised in that：The sealing ring (6) is equipped with contact site (12), described
Contact site (12) protrudes from the barrier (8), and the contact site (12) can be bonded with the spool (2) outer circumferential surface (16).
5. according to anti-leakage valve described in claim 1, it is characterised in that：The section of the sealing ring (6) is substantially u-shaped.
6. according to anti-leakage valve described in claim 1, it is characterised in that：The fluid has fluid high-pressure area (4a), described
The opening (18) of groove (9) is towards fluid high-pressure area (4a).
7. according to anti-leakage valve described in claim 1, it is characterised in that：Annular elastomeric circle (11) is provided in the groove (9).
8. according to anti-leakage valve described in claim 7, it is characterised in that：The diameter of the annular elastomeric circle (11) is equal to or omits
More than the groove (9).
9. according to anti-leakage valve described in claim 1, it is characterised in that：The valve seat (3) offers annular groove (7), described
Annular groove (7) is engaged with the annular notch (5) and accommodates the sealing ring (6) jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721448409.5U CN207421358U (en) | 2017-11-02 | 2017-11-02 | A kind of anti-leakage valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721448409.5U CN207421358U (en) | 2017-11-02 | 2017-11-02 | A kind of anti-leakage valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207421358U true CN207421358U (en) | 2018-05-29 |
Family
ID=62306908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721448409.5U Active CN207421358U (en) | 2017-11-02 | 2017-11-02 | A kind of anti-leakage valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207421358U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725802A (en) * | 2017-11-02 | 2018-02-23 | 苏州丹顿机电有限公司 | A kind of anti-leakage valve |
-
2017
- 2017-11-02 CN CN201721448409.5U patent/CN207421358U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725802A (en) * | 2017-11-02 | 2018-02-23 | 苏州丹顿机电有限公司 | A kind of anti-leakage valve |
| WO2019085141A1 (en) * | 2017-11-02 | 2019-05-09 | 苏州丹顿机电有限公司 | Anti-leakage valve |
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| GR01 | Patent grant |