CN106015601B - A kind of rotary return valve - Google Patents
A kind of rotary return valve Download PDFInfo
- Publication number
- CN106015601B CN106015601B CN201610634379.0A CN201610634379A CN106015601B CN 106015601 B CN106015601 B CN 106015601B CN 201610634379 A CN201610634379 A CN 201610634379A CN 106015601 B CN106015601 B CN 106015601B
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- Prior art keywords
- valve
- window
- valve plate
- rod
- plate
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/221—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
Abstract
The present invention relates to a kind of rotary return valves, including valve body, and setting to have medium channel in the intracorporal valve plate of valve, valve rod and spring, valve body, and medium channel inner wall is coaxially provided with annular protrusion, and the outer wall of valve plate is adapted to the inner wall of annular protrusion；Valve plate is fixedly mounted on valve rod, and valve rod and valve body are rotatablely connected, and valve rod is axially offset and parallel with annular protrusion, and there are an eccentricities for the axis of the center line of valve rod and valve plate and annular protrusion；The both ends of spring are separately fixed on valve plate and valve body；Valve body includes refluxing opening, and the side wall of valve stem top is provided with window A, and window A is connected to refluxing opening or is not connected to, and stem internal is equipped with hole, and hole one end is connected to window A, and the hole other end is connected to the valve import of medium channel.The opening/shutting mode of valve plate is rotary motion in the present invention, and when valve normal operation does not need reflux, backflow leakage will be greatly reduced, and valve performance will be improved, suitable for the pumping system having higher requirements.
Description
Technical field
The present invention relates to valve technology field more particularly to a kind of rotary return valves.
Background technique
Return valve is mounted on outlet of centrifugal pump, has non-return, automatic back flow, automatic flow detection, the function for the decompression that flows back.
When centrifugal pump is shut down, the flap of return valve, which is automatically closed, prevents medium from flowing backwards, and centrifugal pump is avoided to cause to damage because of impeller reversion
It is bad；When pipeline flow is zero or is less than the necessary minimum discharge of centrifugal pump, return valve can automatically by certain media flow back into from
Heart pump input end is recycled, and the actual flow of centrifugal pump is made to be greater than its necessary minimum discharge.Return valve, which is widely used in, to be needed
It will be on the centrifugal pump system that low flow rate condition is run, to protect the safety of centrifugal pump.
Existing return valve, flap is for linear motion along conduit axis, and the position of flap determines the reflux for being located at input end
Mouth is to open or close, and the position of flap by the flow of valve by being determined.Structure is complicated for existing return valve, and manufacture difficulty is very
Greatly；Structure length is very long, and volume is big；Manufacturing cost is very high, seriously affects the popularization and use of product.Meanwhile to guarantee flap
Reliability for linear motion has biggish interval between valve rod and bushing, this will lead to valve and operates normally (not needing to flow back)
When backflow leakage increase, normal use will be unable in the pumping system that some have higher requirements.
Summary of the invention
The present invention is intended to provide rotary return valve, structure is simple, small in size, and manufacturing cost is low, manufacturing process is simple, returns
It is small to flow leakage.
In order to achieve the above objectives, The technical solution adopted by the invention is as follows:
A kind of rotary return valve, including valve body, and be arranged in the intracorporal valve plate of valve, valve rod and spring, the valve body
Interior to have medium channel, medium channel inner wall is coaxially provided with annular protrusion, and the outer wall of the valve plate and the inner wall of annular protrusion are suitable
Match；The valve plate is fixedly mounted on valve rod, and the valve rod and valve body are rotatablely connected, and the valve rod is axially offset with annular protrusion
And in parallel, there are an eccentricities for the axis of the center line and valve plate of the valve rod and annular protrusion；The both ends of the spring point
It is not fixed on valve plate and valve body；
The valve body includes refluxing opening, and the side wall of the valve stem top is provided with window A, window A be connected to refluxing opening or
It is not connected to；The stem internal is equipped with hole, and hole one end is connected to window A, and the hole other end is connected to the valve import of medium channel.
It further, further include reflux bracket, the reflux bracket is fixed at refluxing opening, and one end of the valve rod is located at
It flows back in bracket, the reflux rack side wall is provided with the window B being adapted to window A, and the window B is connected to refluxing opening.
It further, further include bushing, valve deck and gasket, bushing is fixed in valve body, and the valve rod other end is located in bushing,
The valve deck is set to bushing outer end, and valve deck is affixed with valve body, and the gasket is between bushing and valve deck.
Further, the opening direction of the hole bottom is parallel with the axis of valve plate, the opening direction and valve of the window A
The axis of plate is parallel.
Further, the window A is symmetrically arranged with two, and the window B is symmetrically arranged with two.
Further, the spring is helical spring, and for spring pocket on valve rod, spring is located at stem lower portion.
Further, the cross section in the hole is circle.
Further, the valve plate is mounted on valve rod by pin shaft.
Compared with prior art, the invention has the following advantages:
1. the opening/shutting mode of valve plate is rotary motion in the present invention, therefore the interval of valve rod and the kinematic pair of valve body composition can
With very little, backflow leakage will be greatly reduced when valve normal operation does not need reflux, and valve performance will be improved, suitable for having
The pumping system of high requirement；
2. the configuration of the present invention is simple, small in size, manufacturing cost is low, manufacturing process is simple, backflow leakage is small.
Detailed description of the invention
Fig. 1 is main sectional view of the invention when valve plate is closed；
Fig. 2 is cross-sectional view of bowing of the invention when valve plate is closed；
Fig. 3 is the structural schematic diagram of refluxing opening when valve plate is closed；
Fig. 4 is main sectional view of the invention when valve plate fully opens；
Fig. 5 is cross-sectional view of bowing of the invention when valve plate fully opens；
Fig. 6 is the structural schematic diagram of refluxing opening when valve plate fully opens；
Fig. 7 is main sectional view of the invention when valve plate part is opened；
Fig. 8 is cross-sectional view of bowing of the invention when valve plate part is opened；
Fig. 9 is the structural schematic diagram of refluxing opening when valve plate part is opened；
In figure: 1- valve body, 2- spring, 3- valve plate, 4- valve rod, 5- taper shank, 6- transit joint, 7- bushing, 8- gasket, 9- valve
Lid, the import of 10- valve, 11- valve outlet, 12- refluxing opening, the hole 13-, 14- window A, 15- window B, 16- annular protrusion.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing, to the present invention into
Row is further described.
As shown in Figure 1, rotary return valve disclosed by the invention, including valve body 1, and the valve plate being arranged in valve body 1
3, valve rod 4 and spring 2, valve body 1 is interior to have medium channel, and medium channel inner wall is coaxially provided with annular protrusion 16, the outer wall of valve plate 3
It is adapted to the inner wall of annular protrusion 16, valve plate 3 is mounted on valve rod 4 by pin shaft 5, and valve rod 4 and valve body 1 are rotatablely connected, valve plate 3
Unlatching, close and lead to the rotation of valve rod 4, to realize opening or closing for reflux runner.Valve rod 4 and annular protrusion 16 are axial
It is staggered and in parallel, the center line and valve plate 3 of valve rod 4 and the axis of annular protrusion 16 have an eccentricity X, when valve import A pressure
On the contrary when power is greater than valve outlet B, valve plate 3 will be rotated automatically and be opened, then close, check function.The both ends of spring 2 are solid respectively
It is scheduled on valve plate 3 and valve body 1, plays the medium power that balance valve plate 3 is subject to, thus stablize the position of valve plate 3, and auxiliary return
Effect；Spring 2 be helical spring, 2 sets of spring on valve rod 4, spring 2 is located at 4 lower part of valve rod.When in use, medium is from dextrad
Left flowing, when the pressure of valve import 10 is greater than valve outlet 11, the torsionspring 2 under the action of medium power of valve plate 3 revolves counterclockwise
Turn, valve opening；When the pressure of valve outlet 11 is greater than valve import 10, up time under the action of medium power and spring force of valve plate 3
Needle rotation, valve are closed, and medium can only one-way flow.
Valve body 1 includes refluxing opening 12, valve import 10, valve outlet 11, and the both ends of medium channel are respectively valve import 10 and valve
The side wall of outlet 11,4 top of valve rod is provided with window A14, and window A14 is connected to refluxing opening 12 or is not connected to；It is set inside valve rod 4
There is hole 13,13 one end of hole is connected to window A14,13 other end communicating valve import 10 of hole.The cross section in hole 13 is circle.13 bottom of hole
Opening direction it is parallel with the axis of valve plate 3, the opening direction of window A14 is parallel with the axis of valve plate 3.
Valve body 1 further includes reflux bracket 6, bushing 7, valve deck 9 and gasket 8, and reflux bracket 6 and bushing 7 are fixed on valve body 1
Interior, the both ends of valve rod 4 are located in reflux bracket 6 and bushing 7, and valve rod 4 can make 90 ° of rotary motion.The bracket 6 that flows back is solid
It is scheduled at refluxing opening 12, reflux 6 side wall of bracket is provided with the window B15 being adapted to window A14, and window B15 is connected to refluxing opening 12.
Reflux bracket 6 and valve body 1, valve rod 4 and hole 13, window A14, window B15 collectively form reflux runner.Window A14 is symmetrically set
There are two, window B15 is symmetrically arranged with two.Valve deck 9 is set to 7 outer end of bushing, and valve deck 9 and valve body 1 are affixed, and gasket 8 is located at bushing 7
Between valve deck 9.
As shown in Figure 1, 2, 3, when pipeline flow is zero, the pressure difference at 3 both ends of valve plate is zero, work of the valve plate 3 in spring force
It is rotated clockwise under until closing is returned at this point, the window B15 of the window A14 of 4 upper end of valve rod and reflux bracket 6 is completely coincident
Head piece 12 be in and the complete connection of valve insertion state, All Media by refluxing opening 12 flow back road pump inlet end, while valve into
Mouth 10 and valve outlet 11 are in close state
As shown in Figure 4,5, 6, when pipeline flow is normal value, valve plate 3 overcomes spring force inverse under the action of medium power
The window B15 of hour hands rotation, valve opening, while the window A14 of 4 upper end of valve rod and reflux bracket 6 misplaces, and reflux runner is sealed
It closes, valve import 10 and valve outlet 11 are logical；Refluxing opening 12 is in truncation state, without medium back flow.
As shown in Fig. 7,8,9, when pipeline flow is reduced to certain value, valve plate 3 overcomes medium power in the effect of spring force
It rotates clockwise, band ovable valve stem 4 rotates clockwise, and the window A14 of 4 upper end of valve rod connects with the part window B15 of reflux bracket 6
Logical, refluxing opening 12 is in and the state of valve insertion connection, and certain media is flowed back road pump inlet end by refluxing opening 12, at the same valve into
Mouth 10 is also connected to valve outlet 11.
Since the opening/shutting mode of valve plate 3 is rotary motion, the interval for the kinematic pair that valve rod 4 and reflux bracket 6 are constituted
Can be with very little, backflow leakage will greatly reduce when valve normal operation does not need reflux, and valve performance will be improved, and be suitable for
The pumping system having higher requirements.The configuration of the present invention is simple, small in size, manufacturing cost is low, manufacturing process is simple, backflow leakage is small,
The use scale for being conducive to expand market, has good market prospects.
Certainly, the present invention can also have other numerous embodiments, without deviating from the spirit and substance of the present invention,
Those skilled in the art can make various corresponding changes and modifications, but these corresponding changes and change according to the present invention
Shape all should fall within the scope of protection of the appended claims of the present invention.
Claims (8)
1. a kind of rotary return valve, it is characterised in that: including valve body (1), and the valve plate (3), the valve that are arranged in valve body (1)
Bar (4) and spring (2), the valve body (1) is interior to have medium channel, and medium channel inner wall is coaxially provided with annular protrusion (16), institute
The outer wall for stating valve plate (3) is adapted to the inner wall of annular protrusion (16)；The valve plate (3) is fixedly mounted on valve rod (4), the valve
Bar (4) and valve body (1) are rotatablely connected, and the valve rod (4) axially offsets and parallel with annular protrusion (16), the valve rod (4)
There are an eccentricities for the axis of center line and valve plate (3) and annular protrusion (16)；The both ends of the spring (2) are separately fixed at
On valve plate (3) and valve body (1)；
The valve body (1) includes refluxing opening (12), and the side wall at the top of the valve rod (4) is provided with window A (14), the valve rod (4)
Inside is equipped with hole (13), and hole (13) one end is connected to window A (14), and hole (13) other end is connected to the valve import (10) of medium channel；
When valve plate (3) are closed, window A (14) is connected to refluxing opening (12), when valve plate (3) fully opens, window A (14) and reflux
Mouth (12) is not connected to.
2. rotary return valve according to claim 1, it is characterised in that: it further include reflux bracket (6), the reflux branch
Frame (6) is fixed at refluxing opening (12), and one end of the valve rod (4) is located in reflux bracket (6), reflux bracket (6) side
Wall is provided with the window B (15) being adapted to window A (14), and the window B (15) is connected to refluxing opening (12).
3. rotary return valve according to claim 2, it is characterised in that: further include bushing (7), valve deck (9) and gasket
(8), bushing (7) is fixed in valve body (1), and valve rod (4) other end is located in bushing (7), and the valve deck (9) is set to bushing (7)
Outer end, valve deck (9) and valve body (1) are affixed, and the gasket (8) is located between bushing (7) and valve deck (9).
4. rotary return valve according to claim 1 or 2, it is characterised in that: the opening direction of hole (13) bottom
Parallel with the axis of valve plate (3), the opening direction of the window A (14) is parallel with the axis of valve plate (3).
5. rotary return valve according to claim 2, it is characterised in that: the window A (14) is symmetrically arranged with two, institute
It states window B (15) and is symmetrically arranged with two.
6. rotary return valve according to claim 1, it is characterised in that: the spring (2) is helical spring, spring
(2) it covers on valve rod (4), spring (2) is located at valve rod (4) lower part.
7. rotary return valve according to claim 1, it is characterised in that: the cross section of the hole (13) is circle.
8. rotary return valve according to claim 1, it is characterised in that: the valve plate (3) is mounted on by pin shaft (5)
On valve rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610634379.0A CN106015601B (en) | 2016-08-04 | 2016-08-04 | A kind of rotary return valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610634379.0A CN106015601B (en) | 2016-08-04 | 2016-08-04 | A kind of rotary return valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106015601A CN106015601A (en) | 2016-10-12 |
| CN106015601B true CN106015601B (en) | 2019-05-31 |
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ID=57135199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610634379.0A Active CN106015601B (en) | 2016-08-04 | 2016-08-04 | A kind of rotary return valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106015601B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357383B (en) * | 2021-07-16 | 2022-07-26 | 浙江理工大学 | Blending butterfly valve |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5217041A (en) * | 1992-06-25 | 1993-06-08 | Reagan Houston | Dual disk incinerator valve |
| CN201202853Y (en) * | 2008-06-06 | 2009-03-04 | 安徽铜陵科力阀门有限责任公司 | Micro-block slow-closing butterfly check valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB689303A (en) * | 1951-02-12 | 1953-03-25 | Westinghouse Electric Int Co | Improvements in or relating to butterfly valves |
| US3988000A (en) * | 1975-04-07 | 1976-10-26 | Dresser Industries, Inc. | Seals for a gas service butterfly valve |
| JP3112054B2 (en) * | 1994-04-28 | 2000-11-27 | 株式会社日立製作所 | Butterfly valve |
| JPH1113897A (en) * | 1997-06-25 | 1999-01-22 | Kubota Corp | Butterfly valve |
-
2016
- 2016-08-04 CN CN201610634379.0A patent/CN106015601B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5217041A (en) * | 1992-06-25 | 1993-06-08 | Reagan Houston | Dual disk incinerator valve |
| CN201202853Y (en) * | 2008-06-06 | 2009-03-04 | 安徽铜陵科力阀门有限责任公司 | Micro-block slow-closing butterfly check valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106015601A (en) | 2016-10-12 |
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