CN111527856B - Drip irrigation device for integrating water and fertilizer - Google Patents
Drip irrigation device for integrating water and fertilizer Download PDFInfo
- Publication number
- CN111527856B CN111527856B CN202010465869.9A CN202010465869A CN111527856B CN 111527856 B CN111527856 B CN 111527856B CN 202010465869 A CN202010465869 A CN 202010465869A CN 111527856 B CN111527856 B CN 111527856B
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- drip irrigation
- groove
- siphon
- hole
- pressure
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- 230000002262 irrigation Effects 0.000 title claims abstract description 144
- 238000003973 irrigation Methods 0.000 title claims abstract description 144
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000003337 fertilizer Substances 0.000 title claims abstract description 17
- 238000001125 extrusion Methods 0.000 claims abstract description 15
- 230000000670 limiting effect Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 230000010354 integration Effects 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims description 15
- 239000012528 membrane Substances 0.000 claims description 8
- 210000003608 fece Anatomy 0.000 claims 1
- 239000010871 livestock manure Substances 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 4
- 238000005192 partition Methods 0.000 description 6
- 230000004720 fertilization Effects 0.000 description 3
- 239000003621 irrigation water Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000010496 root system development Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C23/00—Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
- A01C23/04—Distributing under pressure; Distributing mud; Adaptation of watering systems for fertilising-liquids
- A01C23/042—Adding fertiliser to watering systems
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C23/00—Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
- A01C23/02—Special arrangements for delivering the liquid directly into the soil
- A01C23/023—Special arrangements for delivering the liquid directly into the soil for liquid or gas fertilisers
-
- 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
- A01G29/00—Root feeders; Injecting fertilisers into the roots
Abstract
The invention discloses a drip irrigation device for water and fertilizer integration, which comprises a drip irrigation pipe and a sealing cover body, wherein a D-shaped drip irrigation channel is formed in the drip irrigation pipe, a constant pressure groove, a tooth-shaped flow limiting groove, a drip irrigation groove and a siphon compensation groove are also formed in the drip irrigation pipe, a water flow channel is formed in one side of a pressure balance clapboard, a through hole is formed in a water flow channel plate, one end, far away from the drip irrigation groove, of the siphon compensation groove is fixedly provided with a pair of extrusion springs, the siphon balance hole is communicated with a siphon balance ball arranged in the D-shaped drip irrigation channel, and clean water is filled in the siphon balance ball; the primary sleeve is movably inserted in the sealing sleeve, the flexible pressure film is expanded and matched with the tooth-shaped flow limiting groove under the action of pressure so as to ensure the flow velocity of the drip irrigation hole, meanwhile, the drip irrigation groove is opened during irrigation, the drip irrigation groove is closed when the irrigation is stopped, the siphon volume is compensated through the volume expansion of the siphon balance ball, and the blockage phenomenon caused by the backflow of liquid in the burette is effectively prevented.
Description
Technical Field
The invention relates to the technical field of agricultural irrigation, in particular to a drip irrigation device for integrating water and fertilizer.
Background
China is a big agricultural country and a big water shortage country, the per capita freshwater resource of China is only one fourth of the per capita level of the world, and the world ranks 121, so that the development of accurate drip irrigation is a necessary way for agricultural development of China, and drip irrigation water and fertilizer integrated fertilization is an accurate fertilization method, is applied only to roots, obviously improves the fertilizer utilization rate, can save the fertilizer consumption by more than 30-50% compared with conventional fertilization, but has certain defects in a drip irrigation mode, such as easy blockage, salt accumulation and seedling burning, limitation of root system development and the like.
In the prior art, the application number of the drip irrigation emitter is 'CN 201721613626.5', the drip irrigation emitter comprises a water inlet cavity and a water outlet cavity, the water inlet cavity comprises a water inlet and a flow passage, the flow passage is communicated with the water inlet, and the flow passage is a zigzag flow passage; the water outlet cavity comprises a first water outlet which is communicated with the flow channel; the sawtooth height of this zigzag runner is 0.90mm, the sawtooth interval is 1.14mm, the runner width is 0.55mm, the runner degree of depth is 0.58mm, the sawtooth angle is 30 °, the tooth point parallel and level of two arbitrary relative teeth of this zigzag runner, the flow of above-mentioned drip irrigation emitter can be as low as 0.6L/h, the problem of how further to reduce the irrigation water flow of drip irrigation emitter has been solved, above-mentioned drip irrigation equipment includes this drip irrigation emitter, the irrigation water flow of above-mentioned drip irrigation emitter reduces by a wide margin, can lengthen the laying length of hollow billet, and then reduce the use quantity of branch pipe, thereby reduce the investment cost of drip irrigation equipment, can also further practice thrift the water consumption.
However, the above-mentioned small-flow drip irrigation emitter and drip irrigation equipment still have obvious defects in the use process: 1. the device can only realize the balance and the limitation of pressure through the zigzag flow channel, but the flow limiting effect of the device is not obvious, and the zigzag flow channel can not ensure the dripping speed of the drip irrigation pipe after the pressure in the water pipe is increased to a certain range; 2. above-mentioned device does not have the anti-clogging effect, stops irrigating when the irrigation pipe and when pressure reduces, causes siphonage easily at the end of irrigation burette to thereby it drips irrigation the inside pipe of blockking up to drip irrigation to lead to the particulate matter entering in the soil.
Disclosure of Invention
The invention aims to provide a drip irrigation device for integrating water and fertilizer, which solves the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
a drip irrigation device for water and fertilizer integration comprises a drip irrigation pipe and a sealing cover body, wherein a D-shaped drip irrigation channel is formed in the drip irrigation pipe, a constant pressure groove, a tooth-shaped flow limiting groove, a drip irrigation groove and a siphon compensation groove are further formed in the drip irrigation pipe, the top of the constant pressure groove is communicated with the D-shaped drip irrigation channel, a pressure balance partition plate and a water flow channel plate are sequentially arranged in the constant pressure groove from top to bottom, a water flow channel is formed in one side of the pressure balance partition plate, a through hole is formed in the water flow channel plate, a flexible pressure film is mounted on the pressure balance partition plate on the upper portion of the through hole, a channel communicated with the tooth-shaped flow limiting groove is formed in the constant pressure groove in the bottom of the water flow channel plate, and one end, away from the constant pressure groove;
a pair of extrusion springs are fixedly installed at one end, far away from the drip irrigation groove, of the siphon compensation groove, the other end of each extrusion spring is fixedly connected to a fixing plate of the telescopic pipe, a siphon balance hole is formed in the fixing plate at the other side of the telescopic pipe and communicated with a siphon balance ball arranged in the D-shaped drip irrigation channel, and clear water is filled in the siphon balance ball;
and extrusion spring coupling go back fixed mounting on the fixed plate has a fixing base, fixedly connected with one-level sleeve on the fixing base, one-level sleeve activity cover is established in the second grade sleeve, fixed mounting has expanding spring between one-level sleeve and the second grade sleeve, the second grade sleeve is kept away from one-level sleeve one end and is driped irrigation groove shutoff board fixed connection, driped irrigation groove shutoff board activity sets up in the driping irrigation groove, one-level sleeve and second grade sleeve activity set up in flexible passageway, fixed mounting has the seal cover in the flexible passageway, one-level sleeve activity is inserted and is established in the seal cover.
Preferably, the sealing cover body is provided with a bolt hole, the drip irrigation pipe is provided with a threaded hole matched with the bolt hole, and the sealing cover body is connected with the drip irrigation pipe through a bolt.
Preferably, the sealing cover body is provided with a drip irrigation hole matched with the drip irrigation groove, and the drip irrigation hole is of a trumpet hole shape.
Preferably, threaded pipes are fixedly installed on two sides of the drip irrigation pipe, and the threaded pipes on the two sides are in threaded connection with the irrigation pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the flexible pressure membrane is arranged at the upper end of the through hole formed in the water flow channel plate, and when the pressure in the irrigation pipe is increased, the flexible pressure membrane is extruded towards one side of the through hole under the action of the pressure, so that the flow of the through hole is further limited, the titration speed can be better ensured by matching with the tooth-shaped flow limiting groove, and the constant flow rate of each drip irrigation device is ensured;
2. above-mentioned device is filled with the clear water in siphon balance ball and telescopic tube, when the inside increase of irrigation pipe, the contraction of siphon balance ball under the effect of irrigation pipe pressure, when the pressure of siphon balance ball to flexible pipe is greater than extrusion spring's effort, the inside moisture of siphon balance ball gets into in the telescopic tube, thereby open the drip irrigation groove, after irrigating simultaneously, under extrusion spring's promotion, liquid flows into in the siphon balance ball once more, thereby compensate the siphon space, close the drip irrigation groove simultaneously, effectively prevent to drip irrigation the pipe and block up.
The flexible pressure membrane is expanded and matched with the tooth-shaped flow limiting groove under the pressure action so as to ensure the flow velocity of the drip irrigation hole, meanwhile, the drip irrigation groove is opened during irrigation, the drip irrigation groove is closed when the irrigation is stopped, the siphon volume is compensated through the volume expansion of the siphon balance ball, and the blocking phenomenon caused by the backflow of liquid in the burette is effectively prevented.
Drawings
FIG. 1 is a schematic diagram of the overall explosive structure of the present invention;
FIG. 2 is a schematic diagram of the siphon balance ball expansion structure of the present invention;
FIG. 3 is a schematic view of a siphon balance ball contraction configuration of the present invention;
FIG. 4 is an enlarged view of the area A of the present invention;
fig. 5 is a schematic view of the installation structure of the extension spring of the present invention.
In the figure: 1 drip irrigation pipe, 2 sealed lid, 3D shape drip irrigation passageway, 4 constant pressure grooves, 5 profile of tooth flow restriction grooves, 6 drip irrigation grooves, 7 siphon compensation grooves, 8 flow channel board, 9 flow channel, 10 through-holes, 11 flexible pressure membrane, 12 extrusion spring, 13 flexible pipe, 14 fixed plate, 15 siphon balance holes, 16 siphon balance balls, 17 fixing base, 18 first grade sleeve, 19 second grade sleeve, 20 flexible spring, 21 drip irrigation groove closure plate, 22 flexible passageway, 23 seal cover, 24 bolt holes, 25 screw holes, 26 drip irrigation holes, 27 screwed pipes, 28 irrigation pipes, 29 pressure balance baffle.
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. 1-5, the present invention provides a technical solution:
a drip irrigation device for water and fertilizer integration comprises a drip irrigation pipe 1 and a sealing cover body 2, wherein a D-shaped drip irrigation channel 3 is formed in the drip irrigation pipe 1, a constant pressure groove 4, a tooth-shaped flow limiting groove 5, a drip irrigation groove 6 and a siphon compensation groove 7 are further formed in the drip irrigation pipe 1, the top of the constant pressure groove 4 is communicated with the D-shaped drip irrigation channel 3, a pressure balance partition plate 29 and a water flow channel plate 8 are sequentially arranged in the constant pressure groove 4 from top to bottom, a water flow channel 9 is formed in one side of the pressure balance partition plate 29, a through hole 10 is formed in the water flow channel plate 8, a flexible pressure film 11 is mounted on the pressure balance partition plate 29 above the through hole 10, a channel communicated with the tooth-shaped flow limiting groove 5 is formed in the constant pressure groove 4 at the bottom of the water flow channel plate 8, and one end, far away from the constant;
the drip irrigation pipe 1 of the invention adopts a buried installation structure, when irrigation is needed, a solution with certain pressure is added into the drip irrigation pipe 1 by a booster pump, a water-fertilizer integrated solution in a D-shaped drip irrigation channel enters a constant pressure groove 4 through a channel, the water-fertilizer integrated solution enters a pressure balance clapboard 29 through the constant pressure groove 4, enters the gap between the water flow passage plate 8 and the pressure balance diaphragm 29 through the water flow passage 9 on the side of the pressure balance diaphragm 29, when the pressure in the D-shaped drip irrigation channel is increased, the D-shaped drip irrigation channel 3 is extruded towards one side of the flexible pressure membrane 11, and the elastic deformation of the flexible pressure membrane 11 is larger when the pressure is larger, the flexible pressure membrane 11 extrudes towards one side of the through hole 10, thereby reducing the clearance of the water flow passing through the through hole 10, balancing the increase of the pressure in the D-shaped drip irrigation channel 3, further stabilizing the flow rate of the water flow passing through and ensuring the stable flow rate of the drip irrigation hole 26;
a pair of extrusion springs 12 are fixedly installed at one end of the siphon compensation groove 7, which is far away from the drip irrigation groove 6, the other end of each extrusion spring 12 is fixedly connected to a fixing plate 14 of the telescopic pipe 13, a siphon balance hole 15 is formed in the fixing plate 14 at the other side of the telescopic pipe 13, the siphon balance hole 15 is communicated with a siphon balance ball 16 arranged in the D-shaped drip irrigation channel 3, and clean water is filled in the siphon balance ball 16;
when irrigation is needed, a water-fertilizer integrated solution with a certain pressure passes through the D-shaped drip irrigation channel 3, the pressure inside the D-shaped drip irrigation channel 3 is increased, the D-shaped drip irrigation channel 3 extrudes the siphon balance ball 16, clear water in the siphon balance ball 16 enters the telescopic pipe 13 through the siphon balance hole 15 under the action of the pressure, the volume inside the telescopic pipe 13 is increased, the telescopic pipe 13 extends to drive the fixing plate 14 to overcome the telescopic spring 20 to move, the fixing plate 14 moves to drive the primary sleeve 18 to move, the primary sleeve 18 moves to drive the secondary sleeve 19 to move, the secondary sleeve 19 moves to drive the drip irrigation groove plugging plate 21 to move, so that the drip irrigation groove 6 is opened, the water-fertilizer integrated solution can flow out through the drip irrigation hole 26, when irrigation is stopped, the pressure inside the D-shaped channel 3 is reduced, and the pressure of the extrusion spring 12 is greater than the water pressure inside the D-shaped drip irrigation, extrusion spring 12 effect drives fixed plate 14 and removes to being close to siphon balance hole 15 one side, leads to flexible pipe 13 inside moisture to get into flexible pipe 13 through siphon balance hole 15 in to make the volume increase in D shape drips irrigation passageway 3, compensate D shape through this kind of mode and drip irrigation passageway 3 inside siphon volume, effectively prevent when stopping irrigating because the hole 26 that drips irrigation that siphonage leads to suck the jam that leads to backward.
Still fixed mounting has fixing base 17 on the fixed plate 14 of being connected with extrusion spring 12, fixedly connected with one-level sleeve 18 on the fixing base 17, one-level sleeve 18 activity cover is established in second grade sleeve 19, fixed mounting has expanding spring 20 between one-level sleeve 18 and the second grade sleeve 19, second grade sleeve 19 is kept away from 18 one end of one-level sleeve and is sealed closure plate 21 fixed connection with the drip irrigation groove, drip irrigation groove seal closure plate 21 activity sets up in drip irrigation groove 6, one-level sleeve 18 and second grade sleeve 19 activity set up in flexible passageway 22, fixed mounting has seal cover 23 in the flexible passageway 22, one-level sleeve 18 activity is inserted and is established in seal cover 23.
When fixed plate 14 removed to siphon balance hole 15, fixing base 17 removed and drives one-level sleeve 18 and remove, and one-level sleeve 18 removes and drives second grade sleeve 19 and remove, removes through second grade sleeve 19 and drives drip irrigation groove shutoff board 21 and carry out the shutoff to drip irrigation groove 6, further protects drip irrigation groove 6, effectively prevents to drip irrigation pipe 6 and blocks up.
As a preferred, seted up bolt hole 24 on the sealed lid 2, seted up on the drip irrigation pipe 1 with bolt hole 24 complex screw hole 25, sealed lid 2 with drip irrigation pipe 1 bolted connection, will sealed lid 2 and drip irrigation pipe 1 through the bolt and install the cooperation, when needs overhaul inside, only need pull down the bolt and can overhaul inside.
Preferably, the seal cover body 2 is provided with drip irrigation holes 26 matched with the drip irrigation grooves 6, the drip irrigation holes 26 are of a trumpet-shaped hole type, and the trumpet-shaped drip irrigation holes 26 are designed to prevent particles in soil from blocking the trumpet-shaped drip irrigation holes.
Preferably, threaded pipes 27 are fixedly mounted on both sides of the drip irrigation pipe 1, the threaded pipes 27 on both sides are screwed with the irrigation pipe 28, and the drip irrigation pipe 1 is connected with the irrigation pipe 28 through the threaded pipes 27.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a drip irrigation device for liquid manure integration, includes drip irrigation pipe (1) and sealed lid (2), its characterized in that: the inside of the drip irrigation pipe (1) is provided with a D-shaped drip irrigation channel (3), the drip irrigation pipe (1) is also provided with a constant pressure groove (4), a tooth-shaped flow limiting groove (5), a drip irrigation groove (6) and a siphon compensation groove (7), the top of the constant-pressure groove (4) is communicated with the D-shaped drip irrigation channel (3), a pressure balance clapboard (29) and a water flow channel plate (8) are sequentially arranged in the constant-pressure groove (4) from top to bottom, a water flow channel (9) is arranged on one side of the pressure balance clapboard (29), a through hole (10) is arranged on the water flow channel plate (8), a flexible pressure membrane (11) is arranged on a pressure balance clapboard (29) at the upper part of the through hole (10), a channel communicated with the tooth-shaped flow limiting groove (5) is arranged in the constant pressure groove (4) at the bottom of the water flow channel plate (8), one end of the tooth-shaped flow limiting groove (5) far away from the constant-pressure groove (4) is communicated with the drip irrigation groove (6) through a channel;
one end, far away from the drip irrigation groove (6), of the siphon compensation groove (7) is fixedly provided with a pair of extrusion springs (12), the other end of each extrusion spring (12) is fixedly connected to a fixing plate (14) of the telescopic pipe (13), a siphon balance hole (15) is formed in the fixing plate (14) on the other side of the telescopic pipe (13), the siphon balance hole (15) is communicated with a siphon balance ball (16) arranged in the D-shaped drip irrigation channel (3), and clear water is filled in the siphon balance ball (16);
be connected with extrusion spring (12) go up still fixed mounting on fixed plate (14) have fixing base (17), fixedly connected with one-level sleeve (18) on fixing base (17), one-level sleeve (18) activity cover is established in second grade sleeve (19), fixed mounting has expanding spring (20) between one-level sleeve (18) and second grade sleeve (19), one-level sleeve (18) one end and drip irrigation groove closure plate (21) fixed connection are kept away from in second grade sleeve (19), drip irrigation groove closure plate (21) activity sets up in drip irrigation groove (6), one-level sleeve (18) and second grade sleeve (19) activity set up in flexible passageway (22), fixed mounting has seal cover (23) in flexible passageway (22), one-level sleeve (18) activity is inserted and is established in seal cover (23).
2. The drip irrigation device for integrating water and fertilizer according to claim 1, wherein: the drip irrigation pipe is characterized in that the sealing cover body (2) is provided with a bolt hole (24), the drip irrigation pipe (1) is provided with a threaded hole (25) matched with the bolt hole (24), and the sealing cover body (2) is connected with the drip irrigation pipe (1) through a bolt.
3. The drip irrigation device for integrating water and fertilizer according to claim 1, wherein: the sealing cover body (2) is provided with a drip irrigation hole (26) matched with the drip irrigation groove (6), and the drip irrigation hole (26) is of a trumpet hole type.
4. The drip irrigation device for integrating water and fertilizer according to claim 1, wherein: both sides of the drip irrigation pipe (1) are fixedly provided with threaded pipes (27), and the threaded pipes (27) on both sides are in threaded connection with the irrigation pipe (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010465869.9A CN111527856B (en) | 2020-05-28 | 2020-05-28 | Drip irrigation device for integrating water and fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010465869.9A CN111527856B (en) | 2020-05-28 | 2020-05-28 | Drip irrigation device for integrating water and fertilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111527856A CN111527856A (en) | 2020-08-14 |
| CN111527856B true CN111527856B (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010465869.9A Active CN111527856B (en) | 2020-05-28 | 2020-05-28 | Drip irrigation device for integrating water and fertilizer |
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| CN (1) | CN111527856B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113348841A (en) * | 2021-01-11 | 2021-09-07 | 安徽科技学院 | Water-soluble fertilizer irrigation device and method thereof |
| CN112930823A (en) * | 2021-03-19 | 2021-06-11 | 义乌市易奈商贸有限公司 | Prevent safe device of driping irrigation of jam |
| CN115136873B (en) * | 2022-07-25 | 2023-05-26 | 河北省农林科学院旱作农业研究所 | Intelligent irrigation system and water and fertilizer integration method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0365639A4 (en) * | 1988-04-12 | 1990-09-26 | Peter John Snelling | Drip irrigation tube and method of manufacturing same |
| US5111996A (en) * | 1991-02-27 | 1992-05-12 | Drip Irrigation Systems, Ltd. | Incremental pressure-compensating drip irrigation emitter |
| CN2609331Y (en) * | 2002-08-15 | 2004-04-07 | 中国科学院石家庄农业现代化研究所 | Hydraulic dosage fertilizer apparatus |
| CN2660883Y (en) * | 2003-07-24 | 2004-12-08 | 北京绿源塑料联合公司 | Built-in type pressure compensation flat dripper |
| CN107318593A (en) * | 2017-08-22 | 2017-11-07 | 中国农业大学 | Combined press force compensating douche between a kind of washable pipe |
| CN210328805U (en) * | 2019-05-13 | 2020-04-17 | 内蒙古兆通管道系统有限公司 | High pressure resistant pressure compensation type drip irrigation tape |
-
2020
- 2020-05-28 CN CN202010465869.9A patent/CN111527856B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0365639A4 (en) * | 1988-04-12 | 1990-09-26 | Peter John Snelling | Drip irrigation tube and method of manufacturing same |
| US5111996A (en) * | 1991-02-27 | 1992-05-12 | Drip Irrigation Systems, Ltd. | Incremental pressure-compensating drip irrigation emitter |
| CN2609331Y (en) * | 2002-08-15 | 2004-04-07 | 中国科学院石家庄农业现代化研究所 | Hydraulic dosage fertilizer apparatus |
| CN2660883Y (en) * | 2003-07-24 | 2004-12-08 | 北京绿源塑料联合公司 | Built-in type pressure compensation flat dripper |
| CN107318593A (en) * | 2017-08-22 | 2017-11-07 | 中国农业大学 | Combined press force compensating douche between a kind of washable pipe |
| CN210328805U (en) * | 2019-05-13 | 2020-04-17 | 内蒙古兆通管道系统有限公司 | High pressure resistant pressure compensation type drip irrigation tape |
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| CN111527856A (en) | 2020-08-14 |
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Denomination of invention: Drip irrigation device for water and fertilizer integration Effective date of registration: 20210924 Granted publication date: 20210625 Pledgee: Bank of China Limited Bengbu Branch Pledgor: Anhui Yifeng Ecological Agriculture Technology Co.,Ltd. Registration number: Y2021980009767 |
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