CN206347157U - A kind of slow opening-closing shaft flow check valve - Google Patents
A kind of slow opening-closing shaft flow check valve Download PDFInfo
- Publication number
- CN206347157U CN206347157U CN201621463660.4U CN201621463660U CN206347157U CN 206347157 U CN206347157 U CN 206347157U CN 201621463660 U CN201621463660 U CN 201621463660U CN 206347157 U CN206347157 U CN 206347157U
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- Prior art keywords
- baffle
- piston
- flap
- valve rod
- closing shaft
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Abstract
A kind of slow opening-closing shaft flow check valve, by designing slow keying oil cylinder in the baffle of valve body, when medium power is applied on flap in opening process, flap is synchronized with the movement with oil cylinder piston, the flow velocity of the flowing hole control cylinder piston both sides oil calculated on piston by particular design, so as to reach the effect that ring is opened.When closing process middle and upper reaches medium power disappears, flap is slowly closed in the presence of spring and piston, the service life and the safe and stable operation of device of the safety assurance equipment of protection flap and pump.
Description
Technical field
The utility model is specifically related to valve technology field, and in particular to a kind of slow opening-closing shaft flow check valve.
Background technology
Check-valves is mainly used in flow of media in pipe-line system and prevents medium flows backwards from causing pump and motor to damage.Only
Return valve it is quick open, the sinuous flow that turn-off transient is produced, water attack easily cause damage to pump and motor, influence equipment makes
With life-span and the safe and stable operation of device.Therefore the medium excessively stream stability of control check-valves switching process is to the long-term of device
Stable operation is of crucial importance.
Conventional check valve in valve opening moment because the pressure difference of pipeline can make medium scurry out suddenly, to the pipeline and equipment in downstream
Certain impact can be produced, downstream service life of equipment is influenceed.Conventional check valve is when closing valve because upstream pump is stopped nothing
Pressure, now downstream pressure can cause medium flow backwards anti-channeling formation water attack, flap and pump are caused greatly damage.
The content of the invention
It is of the present utility model to provide a kind of slow opening-closing shaft flow check valve in order to solve the deficiencies in the prior art.
The utility model use technical solution be：A kind of slow opening-closing shaft flow check valve, including valve body, valve seat and
It is provided with baffle, described baffle and valve interior wall formation runner, described baffle and is provided with flap, described valve body
Valve rod, described valve rod slides with baffle to be coordinated, and described flap is located at valve rod one end, between described flap and baffle
It is additionally provided with back-moving spring, described baffle and is additionally provided with oil cylinder, piston, described piston and oil is additionally provided with described oil cylinder
The sliding of cylinder inner chamber coordinates, and described piston is fixedly mounted on valve rod, and the flowing hole run through is additionally provided with described piston, described
Flowing hole connection piston both sides oil cylinder.
Mounting seat is additionally provided with described baffle, described back-moving spring is located between mounting seat and baffle bottom,
One end of described valve rod is arranged in mounting seat.
Be provided with the middle of described piston in through hole, described through hole and be provided with positive stop lug boss, described valve rod through through hole and
With the spacing cooperation of positive stop lug boss.
The centre of described flap is provided with mounting groove, and described valve rod one end is arranged in mounting groove to be fixed by screw.
Cylinder cap is additionally provided between described oil cylinder and flap, described cylinder cap is fixedly mounted on oil cylinder by screw.
Described baffle bottom is provided with bearing, and one end of described back-moving spring is plugged on bearing.
Described valve rod and piston, is equipped with sealing ring between valve rod and cylinder cap.
The beneficial effects of the utility model are：The utility model provides a kind of slow opening-closing shaft flow check valve, by valve
Design is slow in the baffle of body opens and closes oil cylinder, and when medium power is applied on flap in opening process, flap is same with oil cylinder piston
The flow velocity of the flowing hole control cylinder piston both sides oil calculated on step motion, piston by particular design, so as to reach that ring is opened
Effect.When closing process middle and upper reaches medium power disappears, flap slowly closes in the presence of spring and piston, protection flap and
The service life and the safe and stable operation of device of the safety assurance equipment of pump.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
1- valve bodies in figure, 2- valve seats, 3- flaps, 4- baffles, 5- valve rods, 6- back-moving springs, 11- runners, 31- is installed
Groove, 41- oil cylinders, 42- pistons, 43- flowing holes, 44- mounting seats, 45- through holes, 46- positive stop lug boss, 47- cylinder caps, 48- bearings.
Embodiment
The utility model is further described in conjunction with Fig. 1, a kind of slow opening-closing shaft flow check valve, including valve body 1, valve
Baffle 4 is provided with seat 2 and flap 3, described valve body 1, described baffle 4 and the inwall of valve body 1 formation runner 11 are described
Baffle 4 in be provided with valve rod 5, described valve rod 5 slides with baffle 4 to be coordinated, and described flap 3 is located at the one end of valve rod 5, institute
It is additionally provided between the flap 3 and baffle 4 stated in back-moving spring 6, described baffle 4 and is additionally provided with mounting seat 44, described answers
Position spring 6 is located between mounting seat 44 and the bottom of baffle 4, and the described bottom of baffle 4 is provided with bearing 48, described reset bullet
One end of spring 6 is plugged on bearing 48.One end of described valve rod 5 is arranged in mounting seat 44.Also set in described baffle 4
Have and piston 42 is additionally provided with oil cylinder 41, described oil cylinder 41, described piston 42 slides with the inner chamber of oil cylinder 41 to be coordinated, described work
Plug 42 is fixedly mounted on valve rod 5, and the flowing hole 43 run through is additionally provided with described piston 42, and the described connection of flowing hole 43 is lived
Fill in the oil cylinder 41 of 42 both sides.It is provided with the middle of described piston 42 in through hole 45, described through hole 45 and is provided with positive stop lug boss 46, it is described
Valve rod 5 through through hole 45 and with positive stop lug boss 46 it is spacing coordinate.The utility model passes through in the slow keying oil of the design of baffle 4
Cylinder, when medium power is applied on flap in opening process, flap is synchronized with the movement with oil cylinder piston, and particular design is passed through on piston
The flow velocity of the flowing hole control cylinder piston both sides oil of calculating, so as to reach the effect that ring is opened.When closing process middle and upper reaches are situated between
Matter power is disappeared, and flap is slowly closed in the presence of spring and piston, the use longevity of the safety assurance equipment of protection flap and pump
The safe and stable operation of life and device.
The centre of described flap 3 is provided with mounting groove 31, and described one end of valve rod 5, which is arranged in mounting groove 31, passes through screw
It is fixed.
Cylinder cap 47 is additionally provided between described oil cylinder 41 and flap 3, described cylinder cap 47 is fixedly mounted on oil by screw
On cylinder 41.
Described valve rod 5 and piston 42, sealing ring is equipped between valve rod 5 and cylinder cap 47.
Described 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.It 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 (7)
1. a kind of slow opening-closing shaft flow check valve, including valve body（1）, valve seat（2）And flap（3）, described valve body（1）Inside it is provided with
Baffle（4）, described baffle（4）With valve body（1）Inwall formation runner（11）, described baffle（4）It is interior to be provided with valve rod
（5）, described valve rod（5）With baffle（4）Sliding coordinates, described flap（3）Positioned at valve rod（5）One end, described flap
（3）With baffle（4）Between be additionally provided with back-moving spring（6）, it is characterised in that described baffle（4）Inside it is additionally provided with oil cylinder
（41）, described oil cylinder（41）Inside it is additionally provided with piston（42）, described piston（42）With oil cylinder（41）Inner chamber sliding coordinates, described
Piston（42）It is fixedly mounted on valve rod（5）On, described piston（42）On be additionally provided with the flowing hole run through（43）, described mistake
Discharge orifice（43）Connect piston（42）The oil cylinder of both sides（41）.
2. a kind of slow opening-closing shaft flow check valve according to claim 1, it is characterised in that described baffle（4）It is interior to go back
Provided with mounting seat（44）, described back-moving spring（6）Positioned at mounting seat（44）With baffle（4）Between bottom, described valve rod
（5）One end be arranged on mounting seat（44）On.
3. a kind of slow opening-closing shaft flow check valve according to claim 1, it is characterised in that described piston（42）Centre is set
There is through hole（45）, described through hole（45）It is interior to be provided with positive stop lug boss（46）, described valve rod（5）Through through hole（45）And with it is spacing
Boss（46）It is spacing to coordinate.
4. a kind of slow opening-closing shaft flow check valve according to claim 1, it is characterised in that described flap（3）Centre
Provided with mounting groove（31）, described valve rod（5）One end is arranged on mounting groove（31）It is interior to be fixed by screw.
5. a kind of slow opening-closing shaft flow check valve according to claim 1, it is characterised in that described oil cylinder（41）With flap
（3）Between be additionally provided with cylinder cap（47）, described cylinder cap（47）Oil cylinder is fixedly mounted on by screw（41）On.
6. a kind of slow opening-closing shaft flow check valve according to claim 2, it is characterised in that described baffle（4）Bottom
Provided with bearing（48）, described back-moving spring（6）One end be plugged on bearing（48）On.
7. a kind of slow opening-closing shaft flow check valve according to claim 5, it is characterised in that described valve rod（5）With piston
（42）, valve rod（5）With cylinder cap（47）Between be equipped with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621463660.4U CN206347157U (en) | 2016-12-29 | 2016-12-29 | A kind of slow opening-closing shaft flow check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621463660.4U CN206347157U (en) | 2016-12-29 | 2016-12-29 | A kind of slow opening-closing shaft flow check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206347157U true CN206347157U (en) | 2017-07-21 |
Family
ID=59319250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621463660.4U Active CN206347157U (en) | 2016-12-29 | 2016-12-29 | A kind of slow opening-closing shaft flow check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206347157U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058212A (en) * | 2018-10-30 | 2018-12-21 | 博纳斯威阀门股份有限公司 | Hydraulic-driven axial flow valve |
| CN113446204A (en) * | 2020-03-25 | 2021-09-28 | 宁波强生电机有限公司 | Vibration damping structure of pump |
| CN113446419A (en) * | 2021-06-28 | 2021-09-28 | 中阀科技(长沙)阀门有限公司 | Axial-flow slow-closing check valve |
| CN113653837A (en) * | 2021-09-06 | 2021-11-16 | 刘余 | Assembled forged steel axial flow check valve |
-
2016
- 2016-12-29 CN CN201621463660.4U patent/CN206347157U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058212A (en) * | 2018-10-30 | 2018-12-21 | 博纳斯威阀门股份有限公司 | Hydraulic-driven axial flow valve |
| CN113446204A (en) * | 2020-03-25 | 2021-09-28 | 宁波强生电机有限公司 | Vibration damping structure of pump |
| CN113446419A (en) * | 2021-06-28 | 2021-09-28 | 中阀科技(长沙)阀门有限公司 | Axial-flow slow-closing check valve |
| CN113653837A (en) * | 2021-09-06 | 2021-11-16 | 刘余 | Assembled forged steel axial flow check valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |