CN113016314B - Water and fertilizer integrated irrigation device - Google Patents

Water and fertilizer integrated irrigation device Download PDF

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Publication number
CN113016314B
CN113016314B CN202110169304.0A CN202110169304A CN113016314B CN 113016314 B CN113016314 B CN 113016314B CN 202110169304 A CN202110169304 A CN 202110169304A CN 113016314 B CN113016314 B CN 113016314B
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CN
China
Prior art keywords
drip irrigation
pipe
irrigation pipe
fixed mounting
guide
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
Application number
CN202110169304.0A
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Chinese (zh)
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CN113016314A (en
Inventor
姚瑶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kaifeng Ruitong Digital Agricultural Technology Group Co Ltd
Yang Yawei
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Kaifeng Ruitong Digital Agricultural Technology Group Co ltd
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Priority to CN202110169304.0A priority Critical patent/CN113016314B/en
Publication of CN113016314A publication Critical patent/CN113016314A/en
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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C23/00Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
    • A01C23/04Distributing under pressure; Distributing mud; Adaptation of watering systems for fertilising-liquids
    • A01C23/047Spraying of liquid fertilisers
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C23/00Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
    • A01C23/007Metering or regulating systems
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C23/00Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
    • A01C23/04Distributing under pressure; Distributing mud; Adaptation of watering systems for fertilising-liquids
    • A01C23/042Adding fertiliser to watering systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D3/00Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/002Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  axis horizontal
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D3/00Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06Rotors
    • F03D3/062Construction
    • F03D3/065Construction the wind engaging parts having no movement relative to the rotor during its rotation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D9/00Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20Wind motors characterised by the driven apparatus
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/74Wind turbines with rotation axis perpendicular to the wind direction

Abstract

The invention aims to solve the problem that the existing water-fertilizer integrated irrigation is difficult to carry out, and discloses a water-fertilizer integrated irrigation device which comprises a drip irrigation pipe, wherein a water pump is fixedly arranged on the right side of the upper surface of the drip irrigation pipe, a second guide pipe is communicated between the water pump and the drip irrigation pipe, a first guide pipe is communicated on the water pump, a valve is arranged on the inner right side of the drip irrigation pipe, a storage box is fixedly arranged in the middle of the upper surface of the drip irrigation pipe, a spraying pump is fixedly arranged on the upper side of the storage box, a third guide pipe is communicated between the spraying pump and the drip irrigation pipe, a fan is fixedly arranged in the middle of the lower surface of the drip irrigation pipe, a fourth guide pipe is communicated between the fan and the drip irrigation pipe, a rotating plate is arranged on the inner left side of the drip irrigation pipe, and a supporting column is fixedly arranged on the left side of the upper surface of the drip irrigation pipe. The water and fertilizer integrated drip irrigation system can control the irrigation strength and conveniently irrigate and fertilize crops by repeatedly extruding the drip irrigation pipe by utilizing wind power.

Description

Water and fertilizer integrated irrigation device
Technical Field
The invention relates to the field of irrigation, in particular to a water and fertilizer integrated irrigation device.
Background
Irrigation refers to irrigation with water, and mainly comprises modes of flood irrigation, spray irrigation, micro-spray irrigation, drip irrigation, infiltrating irrigation, deficit irrigation and the like, and is divided into types of irrigation before sowing, seedling-accelerating irrigation, growth period irrigation, winter irrigation and the like. The irrigation principle is that the irrigation quantity, the irrigation times and the irrigation time are determined according to the water requirement characteristics, the growth stage, the climate and the soil conditions of the medicinal plants, and the medicinal plants are irrigated in a proper time and in a proper amount and reasonably.
Often irrigate and fertilize separately, just so irrigate earlier and fertilize again, perhaps fertilize earlier and irrigate again, will be more time-wasting, and when fertilizeing, can not carry out the homogeneous mixing with water to can make the fertilization effect inhomogeneous, if direct mix water and fertilizer, then use the water pipe to irrigate, also cause the waste easily, consequently, the urgent need design a liquid manure integral type irrigation equipment and solve the problem of irrigating.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a water and fertilizer integrated irrigation device.
The invention is realized by the following technical scheme:
a water and fertilizer integrated irrigation device comprises a drip irrigation pipe, wherein a water pump is fixedly mounted on the right side of the upper surface of the drip irrigation pipe, a second guide pipe is communicated between the water pump and the drip irrigation pipe, a first guide pipe is communicated on the water pump, a valve is mounted on the right side inside the drip irrigation pipe, a storage box is fixedly mounted in the middle of the upper surface of the drip irrigation pipe, a spray pump is fixedly mounted on the upper side of the storage box, a third guide pipe is communicated between the spray pump and the drip irrigation pipe, a fan is fixedly mounted in the middle of the lower surface of the drip irrigation pipe, a fourth guide pipe is communicated between the fan and the drip irrigation pipe, a rotating plate is mounted on the left side inside the drip irrigation pipe, a support column is fixedly mounted on the left side of the upper surface of the drip irrigation pipe, a rotating shaft is sleeved on the support column, a bearing is mounted between the rotating shaft and the support column, an air speed cup is fixedly mounted at the right end of the rotating shaft, and a first gear is fixedly mounted at the left end of the rotating shaft, the drip irrigation device comprises a support column, a guide frame, a slide block, a connecting plate, a connecting bag, a pressing plate, a guide rod, a third spiral spring, a guide ring and a support rod, wherein the guide frame is welded on the left side of the support column, the surface of the guide frame is sleeved with the slide block, the lower end of the slide block is fixedly connected with the first spiral spring, the connecting frame is fixedly installed on the left side of the slide block, the back of the connecting frame is fixedly provided with the slide rod, the lower end of the slide rod is fixedly provided with the pressing plate, the surface of the pressing plate is fixedly provided with the second spiral spring, the lower end of the second spiral spring is fixedly connected with the connecting plate, the lower end of the connecting plate is fixedly provided with the first contact piece, the lower end of the first contact piece is fixedly provided with the slide rod, the left side of the drip irrigation tube is sleeved with the connecting bag, the pressing plate is arranged above the connecting bag, the side of the pressing plate is fixedly provided with the guide rod, the surface of the guide ring is sleeved with the third spiral spring, the support rod is fixedly arranged on the side of the guide ring, the utility model discloses a guide ring, including bracing piece, bottom plate, guide ring, gear shaping, stand, motor middle part, bracing piece lower extreme fixed mounting has the bottom plate, the even welding of bottom plate lower surface has the gear shaping, guide ring left surface fixedly connected with frame, frame upper end fixed mounting has the motor, the motor mid-mounting has the second gear.
Preferably, a rack corresponding to the first gear is welded on the sliding rod, and the first gear is a sector gear.
Preferably, the sliding block is in sliding fit with the guide frame.
Preferably, the first contact piece and the second contact piece are both made of copper materials, and the first contact piece is electrically connected with the motor.
Preferably, the second gear is a sector gear, and a rack meshed with the second gear is welded on the left side surface of the guide rod.
Preferably, the connecting bag is communicated with and penetrates through the drip irrigation pipe, and is made of rubber materials.
Preferably, the rotating plate is hinged with the drip irrigation pipe, and a spring is connected between the surface of the rotating plate and the inner wall of the drip irrigation pipe.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, water and fertilizer can be mixed reasonably through the matching of the material spraying pump and the water pump, water sources are saved more through the drip irrigation pipe, water and fertilizer can be sprayed upwards from the root of a plant more easily, the root can absorb water and fertilizer nutrients, waste is reduced, wind power can be provided for the drip irrigation pipe through the arrangement of the fan, the liquid circulation in the drip irrigation pipe is facilitated to be accelerated, the backflow is prevented through the arrangement of the rotating plate, which is equivalent to a one-way valve, through the wind speed cup, the wind power in the natural world is utilized, and the arrangement of the first contact piece and the second contact piece is matched, so that the motor can be driven, the connecting bag can be repeatedly pressed, power can be provided for the drip irrigation pipe through pressing, the blocking prevention effect is achieved, and the water-fertilizer integrated drip irrigation operation is realized. The water and fertilizer integrated drip irrigation system can control the irrigation strength and conveniently irrigate and fertilize crops by repeatedly extruding the drip irrigation pipe by utilizing wind power.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Description of reference numerals: 1. the device comprises a first guide pipe, a second guide pipe, a drip irrigation pipe, a valve, a first guide pipe, a second guide pipe, a drip irrigation pipe, a valve, a second guide pipe, a drip storage box, a drip irrigation pump, a third guide pipe, a second guide pipe, a third guide pipe, a second guide rod, a third spiral spring, a second guide plate, a second spiral spring, a third guide plate, a second spiral spring, a second guide plate, a second contact plate, a third contact plate, a guide ring, a guide plate, a third guide ring, a third guide plate, a press plate, a second guide plate, a fan, a second guide plate, a third guide plate, a second guide plate, a third guide plate, a second guide plate, a third guide plate, a second guide plate, a.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
a water and fertilizer integrated irrigation device comprises a drip irrigation pipe 4, wherein a water pump 2 is fixedly installed on the right side of the upper surface of the drip irrigation pipe 4, a second guide pipe 3 is communicated between the water pump 2 and the drip irrigation pipe 4, a first guide pipe 1 is communicated on the water pump 2, a valve 5 is installed on the right side inside the drip irrigation pipe 4, a storage box 6 is fixedly installed in the middle of the upper surface of the drip irrigation pipe 4, a spraying pump 7 is fixedly installed on the upper side of the storage box 6, a third guide pipe 8 is communicated between the spraying pump 7 and the drip irrigation pipe 4, a fan 36 is fixedly installed in the middle of the lower surface of the drip irrigation pipe 4, a fourth guide pipe 37 is communicated between the fan 36 and the drip irrigation pipe 4, a rotating plate 35 is installed on the left side inside the drip irrigation pipe 4, a supporting column 9 is fixedly installed on the left side of the upper surface of the drip irrigation pipe 4, a rotating shaft 11 is sleeved on the supporting column 9, and a bearing 12 is installed between the rotating shaft 11 and the supporting column 9, the wind speed cup is fixedly mounted at the right end of the rotating shaft 11, a first gear 14 is fixedly mounted at the left end of the rotating shaft 11, a guide frame 15 is welded on the left side surface of the support column 9, a sliding block 17 is sleeved on the surface of the guide frame 15, a first spiral spring 18 is fixedly connected to the lower end of the sliding block 17, a connecting frame 16 is fixedly mounted at the left side of the sliding block 17, a sliding rod 13 is fixedly mounted at the back of the connecting frame 16, a push plate 19 is fixedly mounted at the lower end of the sliding rod 13, a second spiral spring 20 is fixedly mounted on the lower surface of the push plate 19, a connecting plate 21 is fixedly connected to the lower end of the second spiral spring 20, a first contact piece 22 is fixedly mounted on the lower surface of the connecting plate 21, a second contact piece 23 fixedly connected with the drip irrigation pipe 4 is arranged below the first contact piece 22, a connecting bag 32 is sleeved on the left side of the drip irrigation pipe 4, and a pressing plate 31 is arranged above the connecting bag 32, side fixed mounting has guide arm 27 on clamp plate 31, guide arm 27 surface cover has third coil spring 24, third coil spring 24 upper end fixedly connected with guide ring 25, guide ring 25 side fixed mounting has bracing piece 30, bracing piece 30 lower extreme fixed mounting has bottom plate 34, the even welding of bottom plate 34 lower surface has gear shaping 33, guide ring 25 left side fixedly connected with frame 26, frame 26 upper end fixed mounting has motor 29, motor 29 mid-mounting has second gear 28.
A rack corresponding to the first gear 14 is welded on the sliding rod 13, and the first gear 14 is a sector gear.
The slider 17 is in sliding engagement with the guide frame 15.
The first contact piece 22 and the second contact piece 23 are both made of copper material, and the first contact piece 22 is electrically connected with the motor 29.
The second gear 28 is a sector gear, and a rack meshed with the second gear 28 is welded on the left side surface of the guide rod 27.
The connecting bag 32 is communicated with and penetrates through the drip irrigation pipe 4, and the connecting bag 32 is made of rubber materials.
The rotating plate 35 is hinged with the drip irrigation pipe 4, and a spring is connected between the surface of the rotating plate 35 and the inner wall of the drip irrigation pipe 4.
The method comprises the following operation steps: firstly, the first guide pipe 1 is connected with an external water source, fertilizer is filled in the material storage tank 6, the second contact piece 23 is connected with a nearby power supply, the valve 5 is opened, at the moment, the switches of the water pump 2, the fan 36 and the material spraying pump 7 are opened, the water pump 2 supplies water into the drip irrigation pipe 4, the material spraying pump 7 supplies fertilizer into the drip irrigation pipe 4, meanwhile, the fan accelerates the flow of liquid in the drip irrigation pipe 4, the wind blows the wind speed cup 10, the rotating shaft 11 is driven to rotate, the first gear 14 rotates, the sliding rod 13 is driven to slide up and down, the first contact piece 22 and the second contact piece 23 are contacted repeatedly, the motor 29 is electrified repeatedly, the motor 29 drives the guide rod 27 to slide up and down repeatedly, the connecting bag 32 is extruded by the pressing plate 31, power is provided for the drip irrigation pipe discontinuously, and the blockage of the drip irrigation pipe 4 is prevented, can control according to the size of wind-force when driping irrigation, when wind-force is big, through control increase injection force, irrigate and fertilize through the mode of driping irrigation, resources are saved more.
The present embodiment is only for explaining the present invention, and not for limiting the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as needed after reading the present specification, but all of which are protected by patent law within the scope of the claims of the present invention.

Claims (7)

1. The utility model provides a liquid manure integral type irrigation equipment, includes drip irrigation pipe (4), its characterized in that: drip irrigation pipe (4) upper surface right side fixed mounting have water pump (2), water pump (2) and the indirect connection of driping irrigation pipe (4) have second pipe (3), the switch-on has first pipe (1) on water pump (2), drip irrigation pipe (4) inside right side is equipped with valve (5), drip irrigation pipe (4) upper surface middle part fixed mounting have storage case (6), storage case (6) upside fixed mounting has material spraying pump (7), material spraying pump (7) and the indirect connection of driping irrigation pipe (4) have third pipe (8), drip irrigation pipe (4) lower surface middle part fixed mounting has fan (36), fan (36) and the indirect connection of driping irrigation pipe (4) have fourth pipe (37), drip irrigation pipe (4) inside left side is equipped with rotor plate (35), drip irrigation pipe (4) upper surface left side fixed mounting has support column (9), the utility model discloses a wind power generation device, including support column (9), pivot (11) upper end cover, bearing (12) are equipped with between pivot (11) and the support column (9), pivot (11) right-hand member fixed mounting has wind cup (10), pivot (11) left end fixed mounting has first gear (14), support column (9) left side welding has leading truck (15), leading truck (15) surface cover has slider (17), slider (17) lower extreme fixedly connected with first coil spring (18), slider (17) left side fixed mounting has link (16), link (16) fixed mounting has slide bar (13) at the back, slide bar (13) lower extreme fixed mounting has push pedal (19), push pedal (19) lower surface fixed mounting has second coil spring (20), second coil spring (20) lower extreme fixedly connected with connecting plate (21), the utility model discloses a drip irrigation device, including connecting plate (21), fixed surface installs first contact piece (22), first contact piece (22) below be equipped with drip irrigation pipe (4) fixed connection's second contact piece (23), it has connection bag (32) to inlay the cover in pipe (4) left side to drip irrigation, connection bag (32) top is equipped with clamp plate (31), side fixed mounting has guide arm (27) on clamp plate (31), guide arm (27) surface cover has third coil spring (24), third coil spring (24) upper end fixedly connected with guide ring (25), guide ring (25) side fixed mounting has bracing piece (30), bracing piece (30) lower extreme fixed mounting has bottom plate (34), even welding of bottom plate (34) lower surface has inserted tooth (33), guide ring (25) left side fixedly connected with frame (26), frame (26) upper end fixed mounting has motor (29), and a second gear (28) is arranged in the middle of the motor (29).
2. The integrated water and fertilizer irrigation device according to claim 1, wherein: the sliding rod (13) is welded with a rack corresponding to the first gear (14), and the first gear (14) is a sector gear.
3. The integrated water and fertilizer irrigation device according to claim 1, wherein: the sliding block (17) is in sliding fit with the guide frame (15).
4. The integrated water and fertilizer irrigation device according to claim 1, wherein: the first contact piece (22) and the second contact piece (23) are both made of copper materials, and the first contact piece (22) is electrically connected with the motor (29).
5. The integrated water and fertilizer irrigation device according to claim 1, wherein: the second gear (28) is a sector gear, and a rack meshed with the second gear (28) is welded on the left side face of the guide rod (27).
6. The integrated water and fertilizer irrigation device according to claim 1, wherein: the connecting bag (32) is communicated with and penetrates through the drip irrigation pipe (4), and the connecting bag (32) is made of rubber materials.
7. The integrated water and fertilizer irrigation device according to claim 1, wherein: the rotating plate (35) is hinged with the drip irrigation pipe (4), and a spring is connected between the surface of the rotating plate (35) and the inner wall of the drip irrigation pipe (4).
CN202110169304.0A 2021-02-07 2021-02-07 Water and fertilizer integrated irrigation device Active CN113016314B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110169304.0A CN113016314B (en) 2021-02-07 2021-02-07 Water and fertilizer integrated irrigation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110169304.0A CN113016314B (en) 2021-02-07 2021-02-07 Water and fertilizer integrated irrigation device

Publications (2)

Publication Number Publication Date
CN113016314A CN113016314A (en) 2021-06-25
CN113016314B true CN113016314B (en) 2022-05-31

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002316079A (en) * 2001-04-20 2002-10-29 New Delta Ind Co Power spray
CN103782881A (en) * 2012-10-30 2014-05-14 黄建辉 Timing automatic flower watering device
MX2013010353A (en) * 2011-03-10 2015-05-15 Deepak Pranjivandas Shah A fertilizer composition.
CN106224167A (en) * 2016-08-29 2016-12-14 曾世涛 A kind of combined wind energy electromotor
CN206423121U (en) * 2016-12-14 2017-08-22 西安瑞捷生物科技有限公司 A kind of full-automatic liquid manure drip irrigation appliance
CN206681910U (en) * 2017-03-22 2017-11-28 滨州学院 A kind of wind speed cup TRT
CN107836323A (en) * 2017-11-17 2018-03-27 深圳诺智研机械研究设计有限公司 A kind of agricultural sprinkling irrigation equipment
CN207830032U (en) * 2018-01-30 2018-09-07 尹宏章 A kind of high-efficiency wind energy generating set
CN209390672U (en) * 2019-01-16 2019-09-17 朱丕生 One kind adjusting bringing device for soil-less culture liquid fertilizer
CN110292830A (en) * 2019-07-09 2019-10-01 北京石油化工学院 Multicycle VOCs cleaning equipment
CN111837880A (en) * 2020-07-06 2020-10-30 刘静生 Anti-blocking agricultural drip irrigation device with self-cleaning water dropper

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002316079A (en) * 2001-04-20 2002-10-29 New Delta Ind Co Power spray
MX2013010353A (en) * 2011-03-10 2015-05-15 Deepak Pranjivandas Shah A fertilizer composition.
CN103782881A (en) * 2012-10-30 2014-05-14 黄建辉 Timing automatic flower watering device
CN106224167A (en) * 2016-08-29 2016-12-14 曾世涛 A kind of combined wind energy electromotor
CN206423121U (en) * 2016-12-14 2017-08-22 西安瑞捷生物科技有限公司 A kind of full-automatic liquid manure drip irrigation appliance
CN206681910U (en) * 2017-03-22 2017-11-28 滨州学院 A kind of wind speed cup TRT
CN107836323A (en) * 2017-11-17 2018-03-27 深圳诺智研机械研究设计有限公司 A kind of agricultural sprinkling irrigation equipment
CN207830032U (en) * 2018-01-30 2018-09-07 尹宏章 A kind of high-efficiency wind energy generating set
CN209390672U (en) * 2019-01-16 2019-09-17 朱丕生 One kind adjusting bringing device for soil-less culture liquid fertilizer
CN110292830A (en) * 2019-07-09 2019-10-01 北京石油化工学院 Multicycle VOCs cleaning equipment
CN111837880A (en) * 2020-07-06 2020-10-30 刘静生 Anti-blocking agricultural drip irrigation device with self-cleaning water dropper

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