CN206221724U - A kind of axle flow check valve - Google Patents
A kind of axle flow check valve Download PDFInfo
- Publication number
- CN206221724U CN206221724U CN201621288960.3U CN201621288960U CN206221724U CN 206221724 U CN206221724 U CN 206221724U CN 201621288960 U CN201621288960 U CN 201621288960U CN 206221724 U CN206221724 U CN 206221724U
- Authority
- CN
- China
- Prior art keywords
- baffle
- flap
- check valve
- flow check
- axle flow
- 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.)
- Active
Links
Landscapes
- Check Valves (AREA)
Abstract
A kind of axle flow check valve, a guide holder is increased on valve seat, a guide post is increased before flap, in valve closing and opening process, preferably guiding is opened, and enable that flap is more accurately pressed onto on flap, ensure that sealing property is still fine after long-play, and the runner to valve is optimized, make that its pressure drop is smaller, flow resistance is smaller.
Description
Technical field
The utility model is specifically related to valve technology field, and in particular to a kind of axle flow check valve.
Background technology
Check-valves is mainly used in flow of media and prevents medium from flowing backwards to cause pump and motor to damage in pipe-line system.
In practical application, three big performance pressure drop sizes of check-valves, minimum standard-sized sheet flow velocity, water impact preventing effect are the important of measurement check-valves
Technical indicator.And existing common axial flow type check valve is altered under flap is likely to occur after long-play, in off position
Danger.
The content of the invention
It is of the present utility model there is provided a kind of axle flow check valve in order to solve the deficiencies in the prior art.
The utility model use technical solution be：A kind of axle flow check valve, including valve body, valve seat and flap,
Baffle is additionally provided with described valve body, described baffle forms venturi runner, set on described flap with valve interior wall
There is guide holder, be provided with location hole in the middle of described guide holder, the first guiding is additionally provided with the tunnel inlets side of described flap
Bar, the first guide post on described flap is plugged in location hole and the spacing cooperation of guide holder, described flap and baffle
Between be additionally provided with valve rod, be also arranged with spring on described valve rod, described flap includes being separated with baffle, with valve base sealing
The first position of cooperation and flap contact the second place of closure with baffle.
Mounting groove is additionally provided with the runner exit side of described baffle, described mounting groove is provided with water conservancy diversion tailstock,
It is detachably connected between described water conservancy diversion tailstock and baffle.
Described baffle is provided with support base, and be fixedly mounted on baffle on valve interior wall by described support base.
The stop pin for preventing flap from rotating is additionally provided between described baffle and flap.
Described baffle is provided with installed part, and described installed part one end is mounted by means of bolts on baffle,
Described stop pin one end is arranged on the other end of installed part.
Cavity is provided with the middle of described baffle, the centre of described cavity is provided with bearing, and the centre of described bearing sets
There is the groove for running through, described valve rod is arranged in groove and is slidably matched with groove.
Described bearing is provided with boss, and described spring is set on boss.
Described installed part one end is arranged on bearing.
The beneficial effects of the utility model are：The utility model provides a kind of axle flow check valve, be increased on valve seat
One guide holder, increased a guide post before flap, in valve closing and opening process, open preferably guiding,
And enable that flap is more accurately pressed onto on flap, it is ensured that sealing property is still fine after long-play, and to valve
The runner of door is optimized, and makes that its pressure drop is smaller, and flow resistance is smaller.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model left view structural representation.
1- valve bodies in figure, 2- valve seats, 3- flaps, 4- baffles, 5- venturi runners, 31- guide holders, 32- location holes,
The guide posts of 33- first, 41- valve rods, 42- springs, 43- water conservancy diversion tailstocks, 44- support bases, 45- stop pins, 46- installed parts, 47- chambers
Body, 48- bearings, 49- grooves.
Specific embodiment
The utility model is further described in conjunction with Fig. 1, Fig. 2, a kind of axle flow check valve, including valve body 1, valve seat
2 and flap 3, baffle 4 is additionally provided with described valve body 1, described baffle 4 is provided with support base 44, described support
Be fixedly mounted on baffle 4 on the inwall of valve body 1 by seat 44.Described baffle 4 forms venturi runner 5, institute with the inwall of valve body 1
The flap 3 stated is provided with guide holder 31, is provided with location hole 32 in the middle of described guide holder 31, the tunnel inlets of described flap 3
The first guide post 33 is additionally provided with side, the first guide post 33 on described flap 3 is plugged in location hole 32 and guide holder
31 spacing cooperations, are additionally provided with valve rod 41 between described flap 3 and baffle 4, spring 42 is also arranged with described valve rod 41,
Described flap 3 includes being separated with baffle 4, and the first position and flap 3 coordinated with the sealing of valve seat 2 contact with baffle 4
The second place of closure.
Mounting groove is additionally provided with the runner exit side of described baffle 4, described mounting groove is provided with water conservancy diversion tailstock
43, it is detachably connected between described water conservancy diversion tailstock 43 and baffle 4.
The stop pin 45 for preventing flap 3 from rotating is additionally provided between described baffle 4 and flap 3.Set on described baffle 4
There is installed part 46, described one end of installed part 46 is mounted by means of bolts on baffle 4, the described one end of stop pin 45 peace
On the other end of installed part 46.
Cavity 47 is provided with the middle of described baffle 4, the centre of described cavity 47 is provided with bearing 48, described bearing 48
Centre be provided with the groove 49 for running through, described valve rod 41 is arranged in groove 49 and is slidably matched with groove 49.Described bearing
48 are provided with boss, and described spring 42 is set on boss.Described one end of installed part 46 is arranged on bearing 48.
When medium enters axial flow type check valve through entrance, the medium static pressure and fluid momentum acted on flap overcome
Spring force opens flap, and fluid passes through runner.Area of passage reduces at runner aditus laryngis, and flow velocity increases, pressure reduction, before flap
After form pressure differential, under the force action of fluid momentum and pressure differential, promote flap overcome spring force, continue out valve
Open.
When flow velocity continues to increase to valve minimum standard-sized sheet speed Vo, valve wide open, now spring force and the punching of flap fluid
The F balances of making a concerted effort of amount and pressure differential.When flow velocity is more than Vo, flap will not fluctuating with fluid velocity and waving, now flow resistance system
Number is minimum and constant.When flow velocity is gradually reduced to Vo, if the F that makes a concerted effort acted on flap is less than spring force, valve starts to do
Closedown campaign, because flap shutoff stroke is short, flap is closed rapidly in place.Now fluid reflux is restricted, and back-flow velocity is very
It is small, water attack harm is reduced, protect the plant equipment such as pipeline and water pump.
Learnt with model machine flow resistance detection data by computer CFD analogue simulations, compared with general check valve runner, used
Vortex and differential pressure gradients during venturi runner at the import of axial flow type check valve is all smaller.The generation of whirlpool is reduced,
Improve valve export end Fluid pressure recovery capability.
Water impact preventing effect is good, and as the closing of flap, valve outlet lateral pressure are constantly raised, inlet-side pressure is constantly reduced, pipe
It is water hammer that pressure increment is produced in road.Flap turn-off transient, the pressure change of valve port outlet side is no to produce than more uniform
The phenomenon that local pressure increases suddenly, weakens effect of water hammer when flap is closed.
Because common axial flow type check valve is likely to occur the danger altered under flap after long-play, in off position
Property, then the valve seat and flap to common axle flow check valve have done some optimizations, and a guiding mechanism is increased on valve seat,
A guide post is increased before flap, in valve closing and opening process, preferably guiding is opened, and cause flap
More accurately can be pressed onto on flap, it is ensured that the sealing property or very well after long-play, and runner to valve is carried out
Optimization, makes that its pressure drop is smaller, and flow resistance is smaller.
The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to protection domain of the present utility model.Should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (8)
1. a kind of axle flow check valve, including valve body（1）, valve seat（2）And flap（3）, it is characterised in that described valve body（1）
Inside it is additionally provided with baffle（4）, described baffle（4）With valve body（1）Inwall forms venturi runner（5）, described flap（3）
It is provided with guide holder（31）, described guide holder（31）Centre is provided with location hole（32）, described flap（3）Tunnel inlets one
The first guide post is additionally provided with side（33）, described flap（3）On the first guide post（33）It is plugged on location hole（32）It is interior with
Guide holder（31）Spacing cooperation, described flap（3）With baffle（4）Between be additionally provided with valve rod（41）, described valve rod（41）
On be also arranged with spring（42）, described flap（3）Including with baffle（4）Separate, with valve seat（2）First of sealing cooperation
Put and flap（3）With baffle（4）Contact the second place of closure.
2. a kind of axle flow check valve according to claim 1, it is characterised in that described baffle（4）Runner exit
Mounting groove is additionally provided with side, described mounting groove is provided with water conservancy diversion tailstock（43）, described water conservancy diversion tailstock（43）With baffle
（4）Between be detachably connected.
3. a kind of axle flow check valve according to claim 1, it is characterised in that described baffle（4）It is provided with support
Seat（44）, described support base（44）By baffle（4）It is fixedly mounted on valve body（1）On inwall.
4. a kind of axle flow check valve according to claim 1, it is characterised in that described baffle（4）And flap（3）Between
Being additionally provided with prevents flap（3）The stop pin of rotation（45）.
5. a kind of axle flow check valve according to claim 4, it is characterised in that described baffle（4）It is provided with installation
Part（46）, described installed part（46）One end is mounted by means of bolts on baffle（4）On, described stop pin（45）One end
Installed in installed part（46）The other end on.
6. a kind of axle flow check valve according to claim 5, it is characterised in that described baffle（4）Centre is provided with chamber
Body（47）, described cavity（47）Centre be provided with bearing（48）, described bearing（48）Centre be provided with the groove for running through
（49）, described valve rod（41）Installed in groove（49）Interior and groove（49）It is slidably matched.
7. a kind of axle flow check valve according to claim 6, it is characterised in that described bearing（48）Boss is provided with,
Described spring（42）It is set on boss.
8. a kind of axle flow check valve according to claim 5, it is characterised in that described installed part（46）One end is arranged on
Bearing（48）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621288960.3U CN206221724U (en) | 2016-11-29 | 2016-11-29 | A kind of axle flow check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621288960.3U CN206221724U (en) | 2016-11-29 | 2016-11-29 | A kind of axle flow check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206221724U true CN206221724U (en) | 2017-06-06 |
Family
ID=58786589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621288960.3U Active CN206221724U (en) | 2016-11-29 | 2016-11-29 | A kind of axle flow check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206221724U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806529A (en) * | 2017-11-27 | 2018-03-16 | 杭州老板电器股份有限公司 | Check-valves and kitchen fume pipeline |
| CN108413084A (en) * | 2018-05-16 | 2018-08-17 | 徐津 | A kind of gas check (non-return) valve and exhaust apparatus |
-
2016
- 2016-11-29 CN CN201621288960.3U patent/CN206221724U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806529A (en) * | 2017-11-27 | 2018-03-16 | 杭州老板电器股份有限公司 | Check-valves and kitchen fume pipeline |
| CN108413084A (en) * | 2018-05-16 | 2018-08-17 | 徐津 | A kind of gas check (non-return) valve and exhaust apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206221724U (en) | A kind of axle flow check valve | |
| CN104847930B (en) | Water hammer-resistant slow closing swing check valve | |
| CN112228684A (en) | Method for reducing water hammer effect, liquid flow shutoff system and hydraulic engineering | |
| CN203880155U (en) | Noise preventing check valve | |
| CN204187101U (en) | High stability piston flow-adjustable valve | |
| CN206338447U (en) | A kind of multi-function ball stops valve | |
| CN206347157U (en) | A kind of slow opening-closing shaft flow check valve | |
| CN108757178B (en) | A kind of asymmetric wedge-shaped vortex generator and its design method applied to compressor blade row flowing control | |
| CN104197031B (en) | The multi-functional butterfly plate improved based on electric planer formula axle construction and the butterfly valve of composition thereof | |
| CN101487537A (en) | Pipe break valve | |
| CN103836237B (en) | Fusiformis is adjustable non-return valve | |
| CN206320356U (en) | A kind of axial flow type check valve with slow closure function | |
| CN204729691U (en) | A kind of sound insulation safety check | |
| CN207703448U (en) | A kind of device of evaluation Venturi tube cavitation performance | |
| CN204878883U (en) | Energy -conserving check valve of diclinic lamella formula of turning on one's side | |
| CN203175746U (en) | Hydrodynamic water elevator | |
| CN109371897A (en) | A kind of fish pass import moisturizing energy dissipating model test apparatus and test method | |
| CN204140486U (en) | Turbosupercharger | |
| CN214500089U (en) | Water hammer-proof gate valve | |
| CN203297690U (en) | Rotating-opening-type check valve | |
| CN203569545U (en) | Support gate dam with biological channel | |
| CN206320363U (en) | A kind of bivalve flap-type axle flow check valve | |
| CN106931194A (en) | A kind of check-valves that valve flap structure is opened with low voltage difference | |
| CN204188048U (en) | The solid-liquid two-phase flow welded type plate type heat exchanger of anti-alluvial Wear-proof | |
| CN108360452B (en) | Water inlet method for river model test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |