CN109332025A - A kind of axial blade anti-drip device and method - Google Patents
A kind of axial blade anti-drip device and method Download PDFInfo
- Publication number
- CN109332025A CN109332025A CN201811199725.2A CN201811199725A CN109332025A CN 109332025 A CN109332025 A CN 109332025A CN 201811199725 A CN201811199725 A CN 201811199725A CN 109332025 A CN109332025 A CN 109332025A
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- CN
- China
- Prior art keywords
- axial blade
- valve body
- sealing plate
- axial
- blade
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- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/32—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening
- B05B1/323—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening the valve member being actuated by the pressure of the fluid to be sprayed
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- Sealing Devices (AREA)
Abstract
The present invention relates to a kind of axial blade anti-drip device and methods, including upper valve body, overhead gage, sealing plate, axial blade, compressed spring, lower baffle plate and lower valve body；By being threadedly engaged connection between upper valve body and lower valve body, overhead gage and lower baffle plate are respectively and fixedly installed on upper valve body and lower valve body, play positioning action；Sealing plate is fixed on overhead gage, rotational trajectory binding face of the lower surface of sealing plate as axial blade, is provided with axle sleeve of the cylindrical groove as axial blade axial movement and rotary motion in its axle portion, axial blade axis is mounted in sealing plate axle sleeve；Compressed spring is mounted between lower valve body and axial blade, provides seal preload for anti-dripping valve, and the top margin on the boundary and sealing plate that make axial blade is fitted close.The present invention can obtain larger flow under the conditions of hydraulic pressure is lower, and can quick closedown when pipeline levels off to zero-pressure.
Description
Technical field
The present invention relates to technical field of plant protection machinery, and in particular to a kind of axial blade anti-drip device and method.
Background technique
Spray head is the critical component of equipment for plant protection, and a part of anti-dripping valve as nozzle component, effect is to work as spraying machine
When main control valve is closed, it can effectively prevent the residual liquor in pipeline under the action of residual voltage or gravity along spray nozzle stream
Out, to mitigate phytotoxicity, environmental pollution and pesticide waste.
Existing anti-dripping valve mainly has diaphragm type anti-dripping valve, ball-type anti-dripping valve, column type anti-dripping valve etc..Common diaphragm type
Anti-dripping valve is equipped with the valve body that liquid direction is vertical with feed liquor and out, and structure is complicated, moulds to spray head and brings certain difficulty.In addition by
In diaphragm and valve body snug fit, scheduled flow could be sprayed by needing to apply sufficiently large pressure to liquid.In fluid pressure
In lesser situation, such as centrifugal atomizing system, flow is not able to satisfy requirement.
Summary of the invention
The object of the present invention is to provide a kind of axial blade anti-drip devices, are capable of the item of (>=0.05MPa) lower in hydraulic pressure
Larger flow is obtained under part, and can quick closedown when pipeline levels off to zero-pressure.
To achieve the above object, present invention provide the technical scheme that
A kind of axial blade anti-drip device, including upper valve body, overhead gage, sealing plate, axial blade, compressed spring, lower block
Plate and lower valve body；By being threadedly engaged connection between the upper valve body and lower valve body, the overhead gage and lower baffle plate are fixed respectively
It is mounted on upper valve body and lower valve body, plays positioning action；The sealing plate is fixed on overhead gage, is opened in the axle portion of sealing plate
There is cylindrical groove to be axially moved the axle sleeve with rotary motion as axial blade, the axial blade axis is mounted on sealing plate axle sleeve
In；Rotational trajectory binding face of the lower surface of sealing plate as axial blade, the sealing plate have the blade with axial blade
The corresponding arcuate sectors of quantity, but arcuate sectors and axial blade is oppositely oriented, and the top of sealing plate and low side are equipped with and protrude
Sealing strip, as axial blade sealing joint place；The compressed spring is mounted between lower baffle plate and axial blade, is anti-
Drip trap provides seal preload, and the top margin on the boundary and sealing plate that make axial blade is fitted close.
The arcwall face of the sealing plate is to move downward the combined motion curve with rotary motion according to axial blade and build
What molding was made.
The sealing strip of the sealing plate is rubber material.
Further, the upper valve body and spray head bayonet are shaped as an entirety, and the lower valve body is shaped as with nozzle boss
One entirety is assembled into complete spray head by being threadedly engaged connection between upper valve body, lower valve body.
Further, the overhead gage can be directly integral with upper valve body moulding；The lower baffle plate can directly and lower valve body
Moulding is integral.
Further, hydraulic pressure is converted to torque by the axial blade, and axial blade is promoted to rotate.
The antidrip method of axial blade is also disclosed in the present invention, when not having pressure in pipeline, in the pretightning force of compressed spring
Under effect, axial blade is fitted closely with sealing plate, and anti-dripping valve is closed；When pressure increases in pipeline, fluid power acts on axis stream
Blade surface, the compressed spring compression, axial blade moves axially downwards, while impeller being driven to turn along sealing plate lower surface
Dynamic, the opening of spool becomes larger at this time, and liquid is increased by section, can pass through biggish flow.
Compared with prior art, the beneficial effects of the present invention are:
Axial blade anti-drip device valve body of the invention can (>=0.05MPa) lower in hydraulic pressure under conditions of obtain it is larger
Flow, and can quick closedown when pipeline levels off to zero-pressure.Valve axis is overlapped with spray head body axis, and structure is simple, dismounting side
Just.The device of the invention generates rotation using axial blade so that liquid is increased by section, can under smaller pressure,
And it is larger by the flow of valve body.
Detailed description of the invention
Fig. 1 is this axial blade anti-drip device exploded view.
Fig. 2 is the sealing state top view of sealing plate and axial blade.
Fig. 3 is the sealing state left view of sealing plate and axial blade.
Fig. 4 is the opening state left view of sealing plate and axial blade.
In figure: under 1- upper valve body, 2- overhead gage, 3- sealing plate, 3-1- sealing strip, 4- axial blade, 5- compressed spring, 6-
Baffle, 7- lower valve body.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
A kind of axial blade anti-drip device, including upper valve body 1, overhead gage 2, sealing plate 3, axial blade 4, compressed spring 5,
Lower baffle plate 6 and lower valve body 7；By being threadedly engaged connection, the overhead gage 2 and lower baffle plate between the upper valve body 1 and lower valve body 7
6 are respectively and fixedly installed on upper valve body 1 and lower valve body 7, play positioning action.
The sealing plate 3 is fixed on overhead gage 2, is provided with cylindrical groove as 4 axis of axial blade in the axle portion of sealing plate 3
To the axle sleeve of movement and rotary motion, 4 axis of axial blade is mounted in 3 axle sleeve of sealing plate；The lower surface conduct of sealing plate 3
The rotational trajectory binding face of axial blade 4, the sealing plate 3 have arcuate sectors corresponding with the blade quantity of axial blade 4,
But arcuate sectors are oppositely oriented with axial blade 4, and the top of sealing plate 3 and low side are equipped with sealing strip 3-1 outstanding, as axis
Flow the joint place that blade 4 seals.
The compressed spring 5 is mounted between lower baffle plate 6 and axial blade 4, is provided seal preload for anti-dripping valve, is made axis
The top margin on the boundary and sealing plate 3 of flowing blade 4 is fitted close.
The arcwall face of the sealing plate 3 be the combined motion curve with rotary motion moved downward according to axial blade 4 and
Modeling production.
The sealing strip 3-1 of the sealing plate 3 is rubber material.
The upper valve body 1 and spray head bayonet are shaped as an entirety, the lower valve body 7 and nozzle boss be shaped as one it is whole
Body is assembled into complete spray head by being threadedly engaged connection between upper valve body 1, lower valve body 7.
The overhead gage 2 can be directly integral with 1 moulding of upper valve body；The lower baffle plate 6 can directly with 7 moulding of lower valve body at
It is whole.
Hydraulic pressure is converted to torque by the axial blade 4, and axial blade 4 is promoted to rotate.
When not having pressure in pipeline, under the pretightning force effect of compressed spring 5, axial blade 4 and sealing plate 3 are closely pasted
It closes, anti-dripping valve is closed；When pressure increases in pipeline, fluid power acts on 4 surface of axial blade, and compressed spring 5 is compressed, axis stream leaf
Piece 4 moves axially downwards, while impeller being driven to rotate along 3 lower surface of sealing plate, and the opening of spool becomes larger at this time, and liquid leads to
Section increase is crossed, biggish flow can be passed through.
The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, any ripe
Professional and technical personnel is known, without departing from the scope of the present invention, according to the technical essence of the invention, to the above reality
Any simple modifications, equivalent substitutions and improvements etc. made by example are applied, it is fallen within the scope of protection of the technical scheme of the present invention
It is interior.
Claims (7)
1. a kind of axial blade anti-drip device, it is characterised in that: including upper valve body, overhead gage, sealing plate, axial blade, compression
Spring, lower baffle plate and lower valve body；By being threadedly engaged connection, the overhead gage and lower baffle plate between the upper valve body and lower valve body
It is respectively and fixedly installed on upper valve body and lower valve body, plays positioning action；The sealing plate is fixed on overhead gage, in sealing plate
Axle portion be provided with cylindrical groove as axial blade be axially moved and rotary motion axle sleeve, the axial blade axis is mounted on close
In sealing plate axle sleeve；Rotational trajectory binding face of the lower surface of sealing plate as axial blade, the sealing plate have and axis stream leaf
The corresponding arcuate sectors of the blade quantity of piece, but oppositely oriented, the top of sealing plate and the low side of arcuate sectors and axial blade
Joint place equipped with sealing strip outstanding, as axial blade sealing；The compressed spring is mounted on lower baffle plate and axial blade
Between, seal preload is provided for anti-dripping valve, the top margin on the boundary and sealing plate that make axial blade is fitted close.
2. axial blade anti-drip device according to claim 1, it is characterised in that: according to the arcwall face of the sealing plate
Axial blade moves downward the combined motion curve with rotary motion and models production.
3. axial blade anti-drip device according to claim 1, it is characterised in that: the sealing strip of the sealing plate is rubber
Material.
4. axial blade anti-drip device according to claim 1, it is characterised in that: the upper valve body and the moulding of spray head bayonet
For an entirety, the lower valve body and nozzle boss are shaped as an entirety, pass through the company of being threadedly engaged between upper valve body, lower valve body
It connects, is assembled into complete spray head.
5. axial blade anti-drip device according to claim 1, it is characterised in that: the overhead gage can directly and upper valve body
Moulding is integral；The lower baffle plate can be directly integral with lower valve body moulding.
6. axial blade anti-drip device according to claim 1, it is characterised in that: hydraulic pressure is converted to by the axial blade
Torque promotes axial blade to rotate.
7. using the antidrip method of axial blade of any one of claim 1-6 described device, it is characterised in that: when not having in pipeline
When pressure, under the pretightning force effect of compressed spring, axial blade is fitted closely with sealing plate, and anti-dripping valve is closed；When in pipeline
When pressure increases, fluid power acts on axial blade surface, the compressed spring compression, and axial blade moves axially downwards, together
When driving impeller along sealing plate lower surface rotate, the opening of spool becomes larger at this time, and liquid is increased by section, can by compared with
Big flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811199725.2A CN109332025A (en) | 2018-10-16 | 2018-10-16 | A kind of axial blade anti-drip device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811199725.2A CN109332025A (en) | 2018-10-16 | 2018-10-16 | A kind of axial blade anti-drip device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109332025A true CN109332025A (en) | 2019-02-15 |
Family
ID=65308746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811199725.2A Pending CN109332025A (en) | 2018-10-16 | 2018-10-16 | A kind of axial blade anti-drip device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109332025A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070137647A1 (en) * | 2003-05-16 | 2007-06-21 | Ian Dampney | Expiratory valve unit |
| CN203030416U (en) * | 2013-01-16 | 2013-07-03 | 台州信溢农业机械有限公司 | Suspender anti-drip sprayer |
| CN103899809A (en) * | 2014-03-05 | 2014-07-02 | 哈尔滨工程大学 | Rotary plate type throttling resistance regulator |
| CN203803671U (en) * | 2014-03-14 | 2014-09-03 | 厦门英仕卫浴有限公司 | Dripping prevention shower nozzle |
| US20140312145A1 (en) * | 2013-03-15 | 2014-10-23 | Mark Fuller | Variable Width Fan Nozzle |
| US20170328484A1 (en) * | 2016-05-10 | 2017-11-16 | Hamilton Sundstrand Corporation | Check Valves |
| CN207640293U (en) * | 2017-05-22 | 2018-07-24 | 周明超 | A kind of intelligent shower head |
-
2018
- 2018-10-16 CN CN201811199725.2A patent/CN109332025A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070137647A1 (en) * | 2003-05-16 | 2007-06-21 | Ian Dampney | Expiratory valve unit |
| CN203030416U (en) * | 2013-01-16 | 2013-07-03 | 台州信溢农业机械有限公司 | Suspender anti-drip sprayer |
| US20140312145A1 (en) * | 2013-03-15 | 2014-10-23 | Mark Fuller | Variable Width Fan Nozzle |
| CN103899809A (en) * | 2014-03-05 | 2014-07-02 | 哈尔滨工程大学 | Rotary plate type throttling resistance regulator |
| CN203803671U (en) * | 2014-03-14 | 2014-09-03 | 厦门英仕卫浴有限公司 | Dripping prevention shower nozzle |
| US20170328484A1 (en) * | 2016-05-10 | 2017-11-16 | Hamilton Sundstrand Corporation | Check Valves |
| CN207640293U (en) * | 2017-05-22 | 2018-07-24 | 周明超 | A kind of intelligent shower head |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20190215 |