CN208619780U - A kind of quick action emergency valve - Google Patents
A kind of quick action emergency valve Download PDFInfo
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- CN208619780U CN208619780U CN201820934925.7U CN201820934925U CN208619780U CN 208619780 U CN208619780 U CN 208619780U CN 201820934925 U CN201820934925 U CN 201820934925U CN 208619780 U CN208619780 U CN 208619780U
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- valve
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- spring
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Abstract
A kind of quick action emergency valve, including valve body, valve rod, spool and valve seat, snout cavity and outlet plenum are equipped in valve body, spool is fixedly connected on the end of valve rod, valve body is equipped with twice valve seat, valve core upper sleeve is equipped with guide sleeve, guide ring is set with outside guide sleeve, guide ring is fixed on valve body, body base be fixedly installed with valve deck, power-assisted chamber is formed between guide ring and valve deck, spring socket sleeve abuts on spool with guide sleeve, and spring is arranged between spring base and valve deck, deflector hole is offered on spool, snout cavity is connected to by deflector hole with power-assisted chamber.The beneficial effects of the utility model are: when quick action emergency valve loses gas source, valve emergency cut-off, the intracavitary medium power of power-assisted moves rapidly upward with the valve rod that spring force pushes spool and spool to be fixedly connected simultaneously, so that valve stem seal face and valve core sealed cover cooperate with upper valve base and lower valve base sealing respectively, achieve the effect that medium is truncated, sealing effect is more preferable, seals more reliable.
Description
Technical field
The utility model relates to a kind of valve, especially a kind of quick action emergency valve.
Background technique
Currently, quick action emergency valve sealing structure as shown in Figure 1, at flap sealing structure by valve clack cover, flap, sealing ring,
Pressing plate, nut composition, sealing ring are installed on inside flap, are fixed on flap by cover board, and cover board is tightened by nut.
Such structure, in the long-term use, nut will appear relaxation, and medium passes through sealing ring and leaks to valve inner,
Sealing reliability is poor, once generating leakage, generates serious harm to entire gas burning system.
And such structure is plane sealing structure, in the long-term use, the solid particle in medium is easy to be attached to
Sealing surface surface affects sealing effect so that sealing surface occurs scratching phenomenon.
Summary of the invention
The shortcomings that in order to overcome existing quick action emergency valve, the utility model provide fast response time, sealed reliable it is urgent
Stop valve.
Technical solution adopted by the utility model to solve its technical problems is, a kind of quick action emergency valve, including valve body, valve
Bar, spool and valve seat, valve body is interior to be equipped with snout cavity and outlet plenum, and spool is fixedly connected on the end of valve rod, and valve body is equipped with
Twice valve seat, upper valve base and valve stem seal face cooperate, and lower valve base and valve core sealed cover cooperate, and upper valve base is matched with valve stem seal face
Conjunction and the cooperation of lower valve base and valve core sealed cover realize the connection and truncation of snout cavity and outlet plenum, and valve core upper sleeve is equipped with and leads
Be set with guide ring to set, outside guide sleeve, guide ring is fixed on valve body, body base be fixedly installed with valve deck, be oriented to
Power-assisted chamber is formed between ring and valve deck, spring socket sleeve abuts with guide sleeve on spool, is arranged between spring base and valve deck
Spring offers deflector hole on spool, and snout cavity is connected to by deflector hole with power-assisted chamber.
Further, valve stem seal face and valve core sealed cover are inclined-plane, and in valve stem seal face and valve core sealed cover
It is equipped with Ω slot, is equipped with O-ring in Ω slot.
The beneficial effects of the utility model are:
1, when quick action emergency valve is in normally open, the intracavitary spring of power-assisted is in the state that saves up strength, and the medium of snout cavity into
Enter power-assisted chamber；When quick action emergency valve loses gas source, valve emergency cut-off, the intracavitary medium power of power-assisted and spring force act on simultaneously
In on guide sleeve, the valve rod for pushing spool and spool to be fixedly connected moves rapidly upward, so that valve stem seal face and spool
Sealing surface cooperates with upper valve base and lower valve base sealing respectively, achievees the effect that medium is truncated, and sealing effect is more preferable, and sealing more may be used
It leans on.
2, valve stem seal face and valve core sealed cover are inclined-plane, so that solid particle is not easy to be attached to sealing surface surface,
Sealing ring long service life, and O-ring is mounted in the Ω slot of sealing surface, so that spool and valve rod are in zooming process
In, O-ring is not easily to fall off, and stability is more preferable, sealed reliable.
Detailed description of the invention
Fig. 1 is prior-art illustration；
Fig. 2 is the structural schematic diagram of embodiment.
In figure: 1. valve bodies；2. valve rod；3. spool；4. snout cavity；5. outlet plenum；6. upper valve base；7. valve rod is close
Cover；8. lower valve base；9. valve core sealed cover；10. guide sleeve；11. guide ring；12. valve deck；13. power-assisted chamber；14. bullet
Spring abutment；15. spring；16. deflector hole；17. Ω slot.
Specific embodiment
As shown in Fig. 2, a kind of quick action emergency valve, including valve body 1, valve rod 2, spool 3 and valve seat, be equipped in valve body 1 into
Oral cavity 4 and outlet plenum 5, spool 3 are fixedly connected on the end of valve rod 2, and valve body 1 is equipped with twice valve seat, and upper valve base 6 and valve rod are close
Cover 7 cooperates, and lower valve base 8 and valve core sealed cover 9 cooperate, cooperation and lower valve base 8 and valve of the upper valve base 6 with valve stem seal face 7
The cooperation of core sealing surface 9 realizes the connection and truncation of snout cavity 4 Yu outlet plenum 5, is set with guide sleeve 10 on spool 3, guiding
Set 10 outside be set with guide ring 11, guide ring 11 is fixed on valve body 1,1 bottom of valve body be fixedly installed with valve deck 12, be oriented to
Power-assisted chamber 13 is formed between ring 11 and valve deck 12, spring base 14 is sleeved on spool 3, and is abutted with guide sleeve 10, spring base 14
Spring 15 is set between valve deck 12, offers deflector hole 16 on spool 3, snout cavity 4 is connected to by deflector hole 16 with power-assisted chamber 13.
When quick action emergency valve is in normally open, 13 inner spring 15 of power-assisted chamber is in save up strength state, and the medium of snout cavity 4
Into power-assisted chamber 13；When quick action emergency valve loses gas source, valve emergency cut-off, the medium power and spring force in power-assisted chamber 13 is same
On Shi Zuoyong and guide sleeve 10, the valve rod 2 for pushing spool 3 and spool to be fixedly connected moves rapidly upward, so that valve stem seal
Face 7 and valve core sealed cover 9 cooperate with upper valve base 6 and the sealing of lower valve base 8 respectively, achieve the effect that medium, sealing effect is truncated
Fruit is more preferable, seals more reliable.
Valve stem seal face 7 and valve core sealed cover 9 are inclined-plane, so that solid particle is not easy to be attached to sealing surface surface,
Sealing ring long service life, and O-ring is mounted in the Ω slot 17 of sealing surface, so that spool 3 and valve rod 2 are zooming
In the process, O-ring is not easily to fall off, and stability is more preferable, sealed reliable.
Claims (2)
1. a kind of quick action emergency valve, including valve body, valve rod, spool and valve seat, valve body is interior equipped with snout cavity and outlet plenum, described
Spool is fixedly connected on the end of the valve rod, it is characterised in that: the valve body is equipped with twice valve seat, and upper valve base is close with valve rod
Cover cooperation, lower valve base and valve core sealed cover cooperate, cooperation and lower valve base and spool of the upper valve base with valve stem seal face
The cooperation of sealing surface realizes the connection and truncation of snout cavity and outlet plenum, and the valve core upper sleeve is equipped with guide sleeve, the guiding
Set is outer to be set with guide ring, and the guide ring is fixed on valve body, is fixedly installed with valve deck in the body base, described to lead
Power-assisted chamber is formed between Xiang Huanyu valve deck, spring socket sleeve is abutted with guide sleeve on the spool, the spring base and valve deck it
Between spring is set, deflector hole is offered on the spool, snout cavity is connected to by the deflector hole with power-assisted chamber.
2. quick action emergency valve as described in claim 1, it is characterised in that: the valve stem seal face and valve core sealed cover are oblique
Face, and Ω slot is equipped on the valve stem seal face and valve core sealed cover, O-ring is equipped in the Ω slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820934925.7U CN208619780U (en) | 2018-06-16 | 2018-06-16 | A kind of quick action emergency valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820934925.7U CN208619780U (en) | 2018-06-16 | 2018-06-16 | A kind of quick action emergency valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208619780U true CN208619780U (en) | 2019-03-19 |
Family
ID=65703227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820934925.7U Active CN208619780U (en) | 2018-06-16 | 2018-06-16 | A kind of quick action emergency valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208619780U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799576A (en) * | 2018-06-16 | 2018-11-13 | 江苏神通阀门股份有限公司 | A kind of quick action emergency valve |
| CN110159767A (en) * | 2019-05-29 | 2019-08-23 | 宁波文泽机电技术开发有限公司 | A kind of regulating valve of two-seater |
-
2018
- 2018-06-16 CN CN201820934925.7U patent/CN208619780U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799576A (en) * | 2018-06-16 | 2018-11-13 | 江苏神通阀门股份有限公司 | A kind of quick action emergency valve |
| CN110159767A (en) * | 2019-05-29 | 2019-08-23 | 宁波文泽机电技术开发有限公司 | A kind of regulating valve of two-seater |
| CN110159767B (en) * | 2019-05-29 | 2020-08-25 | 台州艾迪西盛大暖通科技有限公司 | Double-seat regulating valve |
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