CN205937999U - Novel swing check valve - Google Patents
Novel swing check valve Download PDFInfo
- Publication number
- CN205937999U CN205937999U CN201620931947.9U CN201620931947U CN205937999U CN 205937999 U CN205937999 U CN 205937999U CN 201620931947 U CN201620931947 U CN 201620931947U CN 205937999 U CN205937999 U CN 205937999U
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- CN
- China
- Prior art keywords
- valve
- flap
- valve clack
- valve rod
- clack
- 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.)
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Abstract
The utility model relates to a novel swing check valve, including valve body, disk seat, valve clack, valve gap, the valve clack openly has the sealed face of mutually supporting with the disk seat, and valve clack back fixed mounting installs on valve body inner cavity wall through the pivot in rocker lower extreme, rocker upper end, be equipped with the forced seal device at the valve clack back, this forced seal device comprises at the circular arc dog of rocker upper end valve rod, hand wheel and connection, and valve rod lower extreme system has the button head briquetting, and the lower plane of button head briquetting contacts with the last arc surface of circular arc dog each other, through installing valve -stem nut and the hand wheel connection on the support on the valve rod. Apply external force forced seal through the valve rod to the valve clack when the valve clack is closed, improve the sealing performance between valve clack and the disk seat, reduce the medium and produce erosion, extension product life to sealed face. Be applicable to the headstock gear that water pump or steam turbine export pipeline prevented the medium refluence.
Description
Technical field
The utility model belongs to valve field, more particularly, to a kind of swing check valve.The utility model is applied to water pump
Or steam turbine outlet conduit prevents the headstock gear that medium flows backwards.
Background technology
The more universal structure of check-valves has lift and swing type structure, and swing check valve is pushed away by pressure medium when opening
Dynamic flap rotation is risen, and makes flap and sealing surface of seat compression sealing by flap deadweight and reverse media pressure during closing.Typically
In the case of, reverse media pressure is less, makes the sealing force between flap and valve seat less, is susceptible to leak between sealing surface,
And leaking medium produces erosion to sealing surface, make seal failure, affect product service life.
Content of the invention
The purpose of this utility model is the shortcoming existing for prior art, provides a kind of good seal performance, product to use
The Novel swing check valve of life-span length.
The technical solution of the utility model includes valve body, valve seat, flap, valve gap, and flap front has and valve seat phase interworking
The sealing surface closing, the flap back side is fixedly mounted on rocking bar lower end, and rocking bar upper end is arranged on body cavity wall by rotating shaft；Mainly
It is to be provided with forced seal device at the flap back side, this forced seal device is by valve rod, handwheel and the circular arc being connected to rocking bar upper end
Block forms, and valve rod lower end is formed with round end briquetting, and the lower plane of round end briquetting is contacted with each other with the upper arc surface of circular arc block, valve
Bar upper end is connected with handwheel by rack-mount valve stem nut.
The utility model has the advantages that being provided with forced seal device at the flap back side, pass through valve rod when flap is closed to valve
Lobe applies external force forced seal, improves the sealing property between flap and valve seat, reduces medium and produces erosion to sealing surface, extends
Product service life.
Brief description
Fig. 1 is structural representation of the present utility model.
Specific embodiment
Novel swing check valve as shown in Figure 1, including valve body 1, valve seat, flap 2, valve gap 4, flap 2 front has
The sealing surface cooperating with valve seat, flap 2 back side is fixedly mounted on rocking bar 3 lower end, and rocking bar 3 upper end is arranged on valve by rotating shaft
On body 1 internal chamber wall, can rotate against between rocking bar 3 and rotating shaft；It is provided with forced seal device at flap 2 back side, this pressure is close
Seal apparatus by valve rod 5, handwheel 8 and are connected to the circular arc block 10 of rocking bar 3 upper end and form, and valve rod 5 lower end is formed with round end briquetting 9,
The lower plane of round end briquetting 9 is contacted with each other with the upper arc surface of circular arc block 10, that is, pass through circle on appropriate design circular arc block 10
The radian of cambered surface, in flap 2 from opening in the overall process closed, makes the lower plane of round end briquetting 9 and the upper of circular arc block 10
Arc surface remains and contacts with each other, and the valve stem nut 7 that valve rod 5 upper end is passed through to install on the frame 6 is connected with handwheel 8.Support 6
It is fixedly mounted on valve gap 4 upper surface, stuffing seal is set between valve rod 5 and valve gap 4.Flap 2 is made in positive pressure medium
Automatically rotarily opened with lower, promote valve rod 5 to rise while flap 2 rotarily opens；Flap 2 is under the effect of reverse media pressure
During closing, rotating handwheel 8 using external force makes valve rod 5 move down, and compresses flap 2 and valve base sealing.
Claims (1)
1. a kind of Novel swing check valve, including valve body (1), valve seat, flap (2), valve gap (4), flap (2) front have with
The sealing surface that valve seat cooperates, flap (2) back side is fixedly mounted on rocking bar (3) lower end, and rocking bar (3) upper end is installed by rotating shaft
On valve body (1) internal chamber wall；It is characterized in that being provided with forced seal device at flap (2) back side, this forced seal device is by valve rod
(5), handwheel (8) and circular arc block (10) composition being connected to rocking bar (3) upper end, valve rod (5) lower end is formed with round end briquetting (9),
The lower plane of round end briquetting (9) is contacted with each other with the upper arc surface of circular arc block (10), and valve rod (5) upper end is by being arranged on support
(6) valve stem nut (7) on is connected with handwheel (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620931947.9U CN205937999U (en) | 2016-08-18 | 2016-08-18 | Novel swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620931947.9U CN205937999U (en) | 2016-08-18 | 2016-08-18 | Novel swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205937999U true CN205937999U (en) | 2017-02-08 |
Family
ID=57952179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620931947.9U Active CN205937999U (en) | 2016-08-18 | 2016-08-18 | Novel swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205937999U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036086A (en) * | 2017-12-30 | 2018-05-15 | 大连大高阀门股份有限公司 | Swing check valve with operation device |
| CN108547980A (en) * | 2018-07-04 | 2018-09-18 | 德阳市迪信佳阀门制造有限公司 | A kind of check valve with operating device |
| CN109723870A (en) * | 2019-03-04 | 2019-05-07 | 浙江欧科阀门有限公司 | A kind of Novel swing check valve |
| CN110173573A (en) * | 2019-06-10 | 2019-08-27 | 浙江金浦实业有限公司 | Wedging type ball face sealing valve |
| CN112145710A (en) * | 2019-06-28 | 2020-12-29 | 中国舰船研究设计中心 | Titanium alloy exhaust flap valve |
| CN112728172A (en) * | 2020-12-31 | 2021-04-30 | 青海中控太阳能发电有限公司 | High-temperature fluid is with can ending check valve and valve clack processing equipment thereof |
-
2016
- 2016-08-18 CN CN201620931947.9U patent/CN205937999U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036086A (en) * | 2017-12-30 | 2018-05-15 | 大连大高阀门股份有限公司 | Swing check valve with operation device |
| CN108547980A (en) * | 2018-07-04 | 2018-09-18 | 德阳市迪信佳阀门制造有限公司 | A kind of check valve with operating device |
| CN109723870A (en) * | 2019-03-04 | 2019-05-07 | 浙江欧科阀门有限公司 | A kind of Novel swing check valve |
| CN109723870B (en) * | 2019-03-04 | 2024-04-16 | 浙江欧科阀门有限公司 | Novel swing check valve |
| CN110173573A (en) * | 2019-06-10 | 2019-08-27 | 浙江金浦实业有限公司 | Wedging type ball face sealing valve |
| CN112145710A (en) * | 2019-06-28 | 2020-12-29 | 中国舰船研究设计中心 | Titanium alloy exhaust flap valve |
| CN112145710B (en) * | 2019-06-28 | 2022-04-08 | 中国舰船研究设计中心 | Titanium alloy exhaust flap valve |
| CN112728172A (en) * | 2020-12-31 | 2021-04-30 | 青海中控太阳能发电有限公司 | High-temperature fluid is with can ending check valve and valve clack processing equipment thereof |
| CN112728172B (en) * | 2020-12-31 | 2023-01-10 | 青海中控太阳能发电有限公司 | High-temperature fluid is with can ending check valve and valve clack processing equipment thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |