CN106416944A - Three-dimensional spraying device and wave-surge type variable spraying and irrigating system with same - Google Patents
Three-dimensional spraying device and wave-surge type variable spraying and irrigating system with same Download PDFInfo
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- CN106416944A CN106416944A CN201611059175.5A CN201611059175A CN106416944A CN 106416944 A CN106416944 A CN 106416944A CN 201611059175 A CN201611059175 A CN 201611059175A CN 106416944 A CN106416944 A CN 106416944A
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- Prior art keywords
- water
- arm
- vertical tube
- left arm
- right arm
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
- A01G25/023—Dispensing fittings for drip irrigation, e.g. drippers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
Abstract
The invention relates to a three-dimensional spraying device. The three-dimensional spraying device comprises a vertical water inlet pipe, a swivel bearing, a vertical rotating pipe, a left water spraying arm, a right water spraying arm, a left hinge shaft, a right hinge shaft, a left-arm water inlet hose and a right-arm water inlet hose. A wave-surge type variable spraying and irrigating system with the three-dimensional spraying device comprises a water supply, an electric water pump, a sine-wave impulse waveform signal generator, a variable-frequency speed regulator, a filter and the three-dimensional spraying device. The three-dimensional spraying device and the wave-surge type variable spraying and irrigating system have the advantages that the defects of annular concentrated distribution of precipitation intensity and low spraying uniformity in existing irrigation systems are overcome.
Description
Technical field
The present invention relates to field irrigation technical field, more particularly, to three-dimensional flusher and the billow formula with this device become
Amount sprinkler irrigation system.
Background technology
Sprinkling irrigation is one of principal mode of farmland water-saving irrigation, has regulation field microclimate, improves cutting quality etc.
Advantage；Existing spray irrigation system is to connect water pump by rotary nozzle by water-supply-pipe to constitute；Water is transmitted by water pump by water-supply-pipe
To rotary nozzle, rotary nozzle is driven to move in a circle thus realizing the purpose of rotary water jet irrigation；Its major defect is：Spill
Water intensity（The water yield）Assume ring-type to concentrate, the precipitation intensity at watering maximum range（The water yield）Far above at the shower nozzle or
Other local precipitation intensities（The water yield）, lack of homogeneity of sprinkling water, and outflow more stable watering intensity（The water yield）Ring-type is concentrated
Phenomenon is more obvious, causes the watering skewness of irrigated farmland, is unfavorable for the growth of crops.
Content of the invention
The technical problem to be solved is to provide three-dimensional flusher, which overcomes existing spray irrigation system precipitation strong
Spend integrated distribution annular in shape, the defect of watering lack of homogeneity.
The present invention another technical problem also to be solved is to provide the billow formula variable spray with three-dimensional flusher to fill
Irrigate system, which overcome existing spray irrigation system precipitation intensity integrated distribution annular in shape, the defect of watering lack of homogeneity.
For solving technical problem, the present invention adopts following technical proposals：Three-dimensional flusher, it includes intake vertical tube, rotation
Rotating shaft is held, is rotated vertical tube, water spray left arm, water spray right arm, left hinge and right hinge, left arm water supply hose, right arm water supply hose；
Water inlet vertical tube is socketed on swivel bearing lower end, and rotary vertically pipe box is connected to swivel bearing upper end, rotation vertical tube, swivel bearing with
And water inlet vertical tube is coaxial, and rotation vertical tube can be with respect to water inlet vertical tube rotation；
Water spray left arm and water spray right arm are the tubular housing of closed at both ends, and water spray left arm and water spray right arm pass through respectively with one end
Left hinge and right hinge are rotatably affixed on rotation vertical tube upper outside wall, so that when billow formula variable spray is irrigated, spray
Water left arm and water spray right arm can be rotated upwardly and downwardly with twisted axis for axle, spray all it is ensured that irrigating while increasing sprinkler irrigation area
Even, the front side wall of water spray left arm or rear wall offer some equidistant left arm hole for water sprayings, the rear wall or front of water spray right arm
Some equidistant right arm hole for water sprayings, and the right arm hole for water spraying of the left arm hole for water spraying of left arm of spraying water and water spray right arm are offered on the wall of side
Perforate is in opposite direction, so that due to the reaction force of water spray, water spray left arm and water spray right arm are rotated vertical tube and rotate, and in rotation
In the presence of leaving mental and physical efforts, water spray left arm and water spray right arm overcome Action of Gravity Field, are lifted up with twisted axis for axle respectively；
Left arm water supply hose two ends are respectively communicated with rotation vertical tube top with the water spray left arm upper side wall of left hinge one end；
Right arm water supply hose corresponds to left arm water supply hose position, and its two ends is respectively communicated with rotation vertical tube top near right hinge
At the water spray right arm upper side wall of axle one end, to ensure to spray water left arm, water spray right arm and rotation vertical tube during water spray rotation
Axial stability；The press water that pressure and flow change with the waveform of billow signal generator, by vertical tube, the rotation of intaking
Rotating shaft holds, rotate vertical tube, left arm water supply hose and right arm water supply hose respectively enter water spray left arm and water spray right arm after, respectively from
The hole for water spraying of the hole for water spraying of water spray left arm and water spray right arm sprays, the reaction force of injection water, drives water spray left arm, water spray right
Arm is rotated vertical tube and rotates on swivel bearing, meanwhile, in the presence of rotary centrifugal force, water spray left arm, water spray right arm gram
Take gravity, respectively injection is lifted up for axle it is achieved that accurately three-dimensional spray with left hinge and right hinge.
The end sealing of described rotation vertical tube, the upper end of the upper end of left arm water supply hose and right arm water supply hose is respectively communicated with
At the top end face of rotation vertical tube.
Described rotation vertical tube top is three-port structure, and rotation riser upper portions are the vertical water inlet of three-port structure, level two
Lead to for left and right delivery port, the upper end of the upper end of left arm water supply hose and right arm water supply hose is respectively communicated with rotation vertical tube top
Left and right water outlet.
The left arm hole for water spraying of described water spray left arm and the right arm hole for water spraying of water spray right arm shift to install in the horizontal direction, its mesh
Be make water spray left arm and water spray right arm water spray rotation during, the watering of irrigated farmland is evenly distributed, it is to avoid occur spilling
Water intensity（The water yield）Assume the problem of ring-type concentration；Or the left arm hole for water spraying of described water spray left arm and the right arm of water spray right arm spray
Water hole is correspondingly arranged in the horizontal direction.
Described water spray left arm is consistent with the angle α coupling of rotation vertical tube with water spray right arm, and this angle α is all 15 degree of -30 degree,
Avoid spray arm parallel to rotation vertical tube and upper end is fettered by water supply hose, when the water spray little rotary speed of intensity is not high, spray
Water arm is difficult the problem raising up, meanwhile, the press water that changes with the waveform of billow signal generator in pressure and flow
Under effect, spray arm raise up or sagging so that the water ring increasing radii that ejects of hole for water spraying or successively decrease, substantially covers phase
The position of the adjacent initial injection water ring of hole for water spraying, solving the precipitation intensity that prior art impelling annular sprinkler irrigation occurs is in
Wire loop integrated distribution, the defect of watering lack of homogeneity.
The lower end of described left arm water supply hose is provided with left arm angle with water spray left arm upper side wall, and this angle is 30 degree of -60 degree；
The lower end of described right arm water supply hose is provided with right arm angle with water spray right arm upper side wall, and this right arm angle mates one with left arm angle
Cause, also spend for 30 degree -60, it is to avoid the liquid in water supply hose vertically sprays into the kinetic energy loss that spray arm brings.
Operation principle
Three-dimensional flusher includes vertical tube of intaking, and the upper end of water inlet vertical tube is fixed on the outer of swivel bearing and puts, rotation vertical tube
Lower end is fixed in the rotation of swivel bearing and puts, and rotation vertical tube can make horizontal revolving motion, rotary shaft with respect to water inlet vertical tube
Hold installation polytetrafluoro nylon lubrication sealing it is ensured that rotate vertical tube make horizontal revolving motion when current from water inlet vertical tube smooth and
Enter rotation vertical tube with not leaking, the upper left-hand of rotation vertical tube is fixed with left hinge, and the upper right of rotation vertical tube is fixed with
Right hinge, the movable end of left hinge is provided with water spray left arm, and the movable end of right hinge is provided with water spray right arm, and water spray left arm can enclose
Do the up and down motion of vertical plane around left hinge, it is 15 ° with respect to the motion initial angle of rotation vertical tube, water spray right arm can be around
Right hinge does the up and down motion of vertical plane, and it is also 15 ° with respect to the motion initial angle of rotation vertical tube, and water spray left arm is near left
One end of hinge is provided with left arm water supply hose, and the other end of left arm water supply hose leads to the left side of rotation riser upper end, water spray
Right arm is provided with right arm water supply hose near one end of right hinge, and the other end of right arm water supply hose leads to rotation riser upper end
Right side, water spray left arm head-on has several left hole for water sprayings inwardly, water spray right arm head-on has several right water sprays outwardly
Hole, water spray left arm is tubular housing, and away from one end closing of left hinge, water spray right arm is tubular housing, away from the one of right hinge
End seal is closed, and water can only spray from left hole for water spraying and right hole for water spraying, drives water spray left arm and water spray right arm rotation and swings up and down.
For solving another technical problem, the present invention adopts following technical proposals：Billow formula with three-dimensional flusher becomes
Amount sprinkler irrigation system, including water source, electric water pump, sinusoidal wave pulse waveform generator, variable-frequency governor, filter and
Three-dimensional flusher；
One end of variable-frequency governor is electrically connected with sinusoidal wave pulse waveform generator, sinusoidal wave pulse waveform generator
It is to control variable-frequency governor, change as sine wave, the other end of variable-frequency governor is electrically connected with electric water pump, to control water
The rotating speed of pump motor, water source is connected with electric water pump by pipeline, and electric water pump is connected by pipe-and-filter, filter
Connected with three-dimensional flusher by pipeline；The water at water source is pressurizeed by water pump and filters supply three-dimensional sprinkling dress through filter
Put, the pressure of press water of the three-dimensional flusher of supply and flow can be average according to the sprinkling of Different Crop and crop growth period
Intensity requirement sets, and " sine wave " waveform with sinusoidal wave pulse waveform generator changes, sinusoidal wave pulse waveform
Signal generator is to control variable-frequency governor, changes as sine wave, and variable-frequency governor controls the rotating speed of pump motor, makes
Pump rotary speed changes as sine wave, and flow and pressure all occur to change accordingly；Three-dimensional flusher is in sinusoidal wave pulse
It is achieved that accurately three-dimensional spray under the control of waveform generator waveform.
Instant invention overcomes the defect of existing spray irrigation system precipitation intensity integrated distribution annular in shape, watering lack of homogeneity.
Brief description
Fig. 1 is present invention three-dimensional flusher structural representation.
Fig. 2 is the billow formula variable spray irrigation system schematic diagram that the present invention carries three-dimensional flusher.
Fig. 3 is present invention three-dimensional another example structure schematic diagram of flusher.
Specific embodiment
Embodiment 1
Shown in Figure 1, three-dimensional flusher 1, it includes intake vertical tube 11, swivel bearing 12, rotation vertical tube 13, water spray left arm
14th, water spray right arm 15, left hinge 16 and right hinge 17, left arm water supply hose 18, right arm water supply hose 19；
Water inlet vertical tube 11 is socketed on swivel bearing 12 lower end, and rotation vertical tube 13 is socketed on swivel bearing 12 upper end, rotation vertical tube 13,
Swivel bearing 12 and water inlet vertical tube 11 are coaxial, and rotation vertical tube 13 can be with respect to water inlet vertical tube 11 rotation；
Water spray left arm 14 and water spray right arm 15 are the tubular housing of closed at both ends, water spray left arm 14 and water spray same one end of right arm 15
It is rotatably affixed on rotation vertical tube 13 upper outside wall by left hinge 16 and right hinge 17 respectively, the front side of water spray left arm 14
Some equidistant hole for water sprayings 141 are offered on wall or rear wall, the rear wall of water spray right arm 15 or front side wall offers some
Equidistant hole for water spraying 151, and the hole for water spraying 141 of left arm 14 of spraying water is in opposite direction with hole for water spraying 151 perforate of water spray right arm 15；
Left arm water supply hose 18 two ends are respectively communicated with the water spray left arm 14 in rotation vertical tube 13 top near left hinge 16 one end
At upper side wall；
Right arm water supply hose 19 corresponds to left arm water supply hose 18 position, and its two ends is respectively communicated with rotation vertical tube 13 top and leans on
At water spray right arm 15 upper side wall of closely right hinge 17 one end.
Described rotation vertical tube 13 top is three-port structure, and rotation vertical tube 13 top is the vertical water inlet of three-port structure, water
Flat two lead to for left and right delivery port, the upper end 181 of left arm water supply hose 18 and the upper end 191 of right arm water supply hose 19 be respectively communicated with
The left and right water outlet on rotation vertical tube 13 top.
The hole for water spraying 141 of described water spray left arm 14 and the hole for water spraying 151 of water spray right arm 15 shift to install in the horizontal direction.
Described water spray left arm 14 and water spray right arm 15 are all 25 degree with the angle α of rotation vertical tube 13.
The lower end 182 of described left arm water supply hose 18 is provided with left arm angle with water spray left arm 14 upper side wall, and this angle is 45
Degree；The lower end 192 of described right arm water supply hose 19 is provided with right arm angle with water spray right arm 15 upper side wall, this right arm angle and left arm
Angle coupling is consistent, also for 45 degree.
Referring to shown in Fig. 1-Fig. 2, billow formula variable spray irrigation system with three-dimensional flusher, including：Water source, electricity
Dynamic water pump, sinusoidal wave pulse waveform generator, variable-frequency governor, filter and three-dimensional flusher；
One end of variable-frequency governor is electrically connected with sinusoidal wave pulse waveform generator, the other end of variable-frequency governor with electronic
Water pump electrically connects, and water source is connected with electric water pump by pipeline, and electric water pump is connected by pipe-and-filter, and filter passes through
Pipeline is connected with three-dimensional flusher；Three-dimensional flusher 1, it include intake vertical tube 11, swivel bearing 12, rotation vertical tube 13,
Water spray left arm 14, water spray right arm 15, left hinge 16 and right hinge 17, left arm water supply hose 18, right arm water supply hose 19；
Water inlet vertical tube 11 is socketed on swivel bearing 12 lower end, and rotation vertical tube 13 is socketed on swivel bearing 12 upper end, rotation vertical tube 13,
Swivel bearing 12 and water inlet vertical tube 11 are coaxial, and rotation vertical tube 13 can be with respect to water inlet vertical tube 11 rotation；
Water spray left arm 14 and water spray right arm 15 are the tubular housing of closed at both ends, water spray left arm 14 and water spray same one end of right arm 15
It is rotatably affixed on rotation vertical tube 13 upper outside wall by left hinge 16 and right hinge 17 respectively, the front side of water spray left arm 14
Some equidistant left arm hole for water sprayings 141 are offered on wall or rear wall, the rear wall of water spray right arm 15 or front side wall offer
Some equidistant right arm hole for water sprayings 151, and the right arm hole for water spraying of the left arm hole for water spraying 141 of left arm 14 of spraying water and water spray right arm 15
151 perforates are in opposite direction；
Left arm water supply hose 18 two ends are respectively communicated with the water spray left arm 14 in rotation vertical tube 13 top near left hinge 16 one end
At upper side wall；
Right arm water supply hose 19 corresponds to left arm water supply hose 18 position, and its two ends is respectively communicated with rotation vertical tube 13 top and leans on
At water spray right arm 15 upper side wall of closely right hinge 17 one end.
Described rotation vertical tube 13 top is three-port structure, and rotation vertical tube 13 top is the vertical water inlet of three-port structure, water
Flat two lead to for left and right delivery port, the upper end 181 of left arm water supply hose 18 and the upper end 191 of right arm water supply hose 19 be respectively communicated with
The left and right water outlet on rotation vertical tube 13 top.
The left arm hole for water spraying 141 of described water spray left arm 14 is wrong in the horizontal direction with the right arm hole for water spraying 151 of water spray right arm 15
Position setting.
Described water spray left arm 14 and water spray right arm 15 are 25 degree with the angle of rotation vertical tube 13.
The lower end 182 of described left arm water supply hose 18 is provided with left arm angle with water spray left arm 14 upper side wall, and this angle is 45
Degree；The lower end 192 of described right arm water supply hose 19 is provided with right arm angle with water spray right arm 15 upper side wall, this right arm angle and left arm
Angle coupling is consistent, also for 45 degree.
Embodiment 2
Shown in Figure 3, three-dimensional flusher 1, its difference from Example 1 is, the top of described rotation vertical tube 13 is close
Envelope, the upper end 181 of left arm water supply hose 18 and the upper end 191 of right arm water supply hose 19 are respectively communicated with the top of rotation vertical tube 13
At face.
The hole for water spraying 141 of described water spray left arm 14 and the hole for water spraying 151 of water spray right arm 15 are correspondingly arranged in the horizontal direction.
As described above, present invention three-dimensional flusher and the billow formula variable spray irrigation system with this device, described
Embodiment and figure, the simply preferable implementation result of the present invention, be not to be confined to the present invention, every knot with the present invention
Structure, feature etc. are approximate, identical person, all should belong to the scope of protection of the invention.
Claims (7)
1. three-dimensional flusher（1）It is characterised in that：It includes vertical tube of intaking（11）, swivel bearing（12）, rotation vertical tube
（13）, water spray left arm（14）, water spray right arm（15）, left hinge（16）With right hinge（17）, left arm water supply hose（18）, right arm enters
Water tube hose（19）；
Water inlet vertical tube（11）It is socketed on swivel bearing（12）Lower end, rotates vertical tube（13）It is socketed on swivel bearing（12）Upper end, rotation
Turn vertical tube（13）, swivel bearing（12）And water inlet vertical tube（11）Coaxially, and rotate vertical tube（13）Can be with respect to water inlet vertical tube
（11）Rotation；
Water spray left arm（14）With water spray right arm（15）It is the tubular housing of closed at both ends, left arm of spraying water（14）With water spray right arm
（15）Pass through left hinge with one end respectively（16）With right hinge（17）It is rotatably affixed at rotation vertical tube（13）On upper outside wall,
Water spray left arm（14）Front side wall or rear wall on offer some equidistant left arm hole for water sprayings（141）, right arm of spraying water（15）'s
Some equidistant right arm hole for water sprayings are offered on rear wall or front side wall（151）, and left arm of spraying water（14）Left arm hole for water spraying
（141）With water spray right arm（15）Right arm hole for water spraying（151）Perforate is in opposite direction；
Left arm water supply hose（18）Two ends are respectively communicated with rotation vertical tube（13）Top and close left hinge（16）The water spray of one end
Left arm（14）At upper side wall；
Right arm water supply hose（19）Corresponding to left arm water supply hose（18）Position, its two ends is respectively communicated with rotation vertical tube（13）Top
End and close right hinge（17）The water spray right arm of one end（15）At upper side wall.
2. according to claim 1 three-dimensional flusher it is characterised in that：Described rotation vertical tube（13）End sealing,
Left arm water supply hose（18）Upper end（181）With right arm water supply hose（19）Upper end（191）It is respectively communicated with rotation vertical tube
（13）Top end face at.
3. according to claim 1 three-dimensional flusher it is characterised in that：Described rotation vertical tube（13）Top is tied for threeway
Structure, rotates vertical tube（13）Top is the vertical water inlet of three-port structure, and level two is led to for left and right delivery port, left arm water supply hose
（18）Upper end（181）With right arm water supply hose（19）Upper end（191）It is respectively communicated with rotation vertical tube（13）The left and right on top
Water outlet.
4. according to claim 1 three-dimensional flusher it is characterised in that：Described water spray left arm（14）Left arm hole for water spraying
（141）With water spray right arm（15）Right arm hole for water spraying（151）Shift to install in the horizontal direction；Or described water spray left arm（14）'s
Left arm hole for water spraying（141）With water spray right arm（15）Right arm hole for water spraying（151）It is correspondingly arranged in the horizontal direction.
5. according to claim 1 three-dimensional flusher it is characterised in that：Described water spray left arm（14）With water spray right arm
（15）With rotation vertical tube（13）Angle α coupling consistent, this angle α be all 15 degree -30 and spends.
6. according to claim 1 three-dimensional flusher it is characterised in that：Described left arm water supply hose（18）Lower end
（182）With water spray left arm（14）Upper side wall is provided with left arm angle, and this left arm angle is 30 degree of -60 degree；Described right arm water supply hose
（19）Lower end（192）With water spray right arm（15）Upper side wall is provided with right arm angle, and this right arm angle is consistent with left arm angle coupling,
Also it is 30 degree of -60 degree.
7. band is just like the billow formula variable spray irrigation system of flusher three-dimensional described in any one in claim 1-6, its
It is characterised by：Including water source, electric water pump, sinusoidal wave pulse waveform generator, variable-frequency governor, filter and three-dimensional spray
Spill device；
One end of variable-frequency governor is electrically connected with sinusoidal wave pulse waveform generator, the other end of variable-frequency governor with electronic
Water pump electrically connects, and water source is connected with electric water pump by pipeline, and electric water pump is connected by pipe-and-filter, and filter passes through
Pipeline is connected with three-dimensional flusher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611059175.5A CN106416944A (en) | 2016-11-25 | 2016-11-25 | Three-dimensional spraying device and wave-surge type variable spraying and irrigating system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611059175.5A CN106416944A (en) | 2016-11-25 | 2016-11-25 | Three-dimensional spraying device and wave-surge type variable spraying and irrigating system with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106416944A true CN106416944A (en) | 2017-02-22 |
Family
ID=58218625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611059175.5A Pending CN106416944A (en) | 2016-11-25 | 2016-11-25 | Three-dimensional spraying device and wave-surge type variable spraying and irrigating system with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106416944A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108668712A (en) * | 2018-07-26 | 2018-10-19 | 魏全 | greenhouse |
| CN109287441A (en) * | 2018-10-31 | 2019-02-01 | 昆明理工大学 | A kind of variable-flow irrigation system for pressing salt |
| CN114747458A (en) * | 2022-04-07 | 2022-07-15 | 郑州黄河河务局惠金黄河河务局 | Environment-friendly hydraulic engineering automatic irrigation water conservation shower nozzle |
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| CN101219418A (en) * | 2007-11-20 | 2008-07-16 | 江苏大学 | Variable-flow even insufflation showerhead |
| CN101352702A (en) * | 2008-03-10 | 2009-01-28 | 江苏大学 | Variable-spray whole-torrential flow showerhead |
| CN101972721A (en) * | 2010-11-16 | 2011-02-16 | 武汉大学 | Controllable spraying device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108668712A (en) * | 2018-07-26 | 2018-10-19 | 魏全 | greenhouse |
| CN109287441A (en) * | 2018-10-31 | 2019-02-01 | 昆明理工大学 | A kind of variable-flow irrigation system for pressing salt |
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| CN114747458A (en) * | 2022-04-07 | 2022-07-15 | 郑州黄河河务局惠金黄河河务局 | Environment-friendly hydraulic engineering automatic irrigation water conservation shower nozzle |
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Application publication date: 20170222 |
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