NL2034117A

NL2034117A - Three-dimensional irrigation system for companion planting

Info

Publication number: NL2034117A
Application number: NL2034117A
Authority: NL
Inventors: Ren Changjiang; Zhang Hongmei
Original assignee: Nanchang Inst Tech
Priority date: 2022-06-28
Filing date: 2023-02-08
Publication date: 2024-01-12
Also published as: CN115005058A; CN115005058B

Abstract

Disclosed is a three—dimensional irrigation system for companion planting. The system includes a shallow irrigation device, a middle irrigation device, and a deep irrigation device, where the shallow irrigation device includes a high—pressure converter, a water outlet of the high—pressure converter is in communication with a water spraying member; the middle irrigation device is arranged below the shallow irrigation device, the middle irrigation device includes a medium—pressure converter, a water inlet of the medium—pressure converter is in communication with a water supply pipe, a water outlet of the medium—pressure converter is in communication with a water dripping member; and the deep irrigation device is arranged below the middle irrigation device, the deep irrigation device includes a low—pressure converter, a water inlet of the low—pressure converter is in communication with a water supply pipe, and a water outlet of the low—pressure converter is in communication with a water infiltrating member.

Description

THREE-DIMENSIONAL IRRIGATION SYSTEM FOR COMPANION PLANTING

TECHNICAL FIELD

The present invention relates to the technical field of agri- cultural irrigation, and particularly relates to a three- dimensional irrigation system for companion planting.

BACKGROUND ART

Companion planting means that two or more kinds of plants are planted together. In companion planting modes, a fruit-crop- vegetable companion planting mode has been widely used in recent years, where fruit trees, crops, and vegetables are combined or- ganically, to reduce surface evaporation, increase soil organic matter, microflora, and enzyme activity, and increase land produc- tivity and water resource utilization. Compared to single plant- ing, the fruit-crop-vegetable companion planting can store water and keep soil moisture, and prevent soil erosion while obtaining greater yields and benefits.

In the fruit-crop-vegetable planting mode, fruit trees, crops, and vegetables are rooted at different depths of the soil layers, different levels of roots have significant spatial differ- ences in absorption of moisture, and moreover, the roots of crops and fruit trees have large differences in the amount and time of irrigation. Irrigation subjects of existing irrigation members are all limited to single deep or shallow roots, and single irrigation modalities such as drip irrigation, microspray irrigation, etc., are prone to water deficit in the deep or shallow roots, resulting in water stress for the fruit-crop-vegetable planting mode.

Irrigation subjects of existing irrigation members are all limited to single deep or shallow roots, and there are irrigation spatial levels and irrigation temporal differences in fruit tree, crop and vegetable irrigation processes for the companion planting mode, so it is difficult to simultaneously irrigate deep roots of fruit trees and shallow roots of interplanted crops by means of traditional single irrigation modes.

SUMMARY

The objective of the present invention is to solve the prob- lem that it is difficult to simultaneously irrigate deep roots of fruit trees and shallow roots of interplanted crops by means of traditional single irrigation modes, and to provide a three- dimensional irrigation system for companion planting.

The three-dimensional irrigation system for companion plant- ing provided in the present invention includes a water supply pipe, and further includes: a high-pressure converter having a water inlet in communica- tion with the water supply pipe; a water spraying member having a water inlet in communication with a water outlet of the high-pressure converter, where the high-pressure converter is used for supplying high-pressure water in the water supply pipe to the water spraying member; a low-pressure converter having a water inlet in communica- tion with the water supply pipe; and a water infiltrating member arranged below the water spraying member and having a water inlet in communication with a water out- let of the low-pressure converter, where the low-pressure convert- er is used for supplying low-pressure water in the water supply pipe to the water infiltrating member.

Preferably, the three-dimensional irrigation system for com- panion planting further includes a medium-pressure converter hav- ing a water inlet in communication with the water supply pipe; and a water dripping member arranged between the water spraying member and the water infiltrating member and having a water inlet in com- munication with a water outlet of the medium-pressure converter, where the medium-pressure converter is used for supplying medium- pressure water in the water supply pipe to the water dripping mem- ber.

Preferably, the high-pressure converter includes: a first housing including: a column internally provided with a first cavity, where a second cavity is provided in a bottom of the first cavity, the second cavity has a diameter less than the first cavity, a bottom of the column is provided with a water in-

let in communication with an interior of the second cavity, and a top of the column is provided with a water outlet in communication with an interior of the first cavity; and a first magnet fixedly arranged on an inner top wall of the first cavity; and a high-pressure plug arranged in the first housing and in- cluding: a first baffle arranged in the first cavity and having a di- ameter less than the first cavity and greater than the second cav- ity; a first pipe body arranged in the first cavity and having a lower end fixedly connected to a top of the first baffle and an upper end fixedly provided with a second magnet repelling the first magnet, where a peripheral surface of the first pipe body is provided with a water permeable hole, and an upper end of the first pipe body is provided with a water permeable hole communi- cating the water outlet and the first pipe body; and a second pipe body slidably arranged in the second cavity, having an outer diameter matching an inner diameter of the second cavity, and having an upper end fixedly connected to a bottom of the first baffle, wherein a peripheral surface of the second pipe body is provided with a water permeable hole.

Preferably, the medium-pressure converter includes: a second housing having the same structure as the first hous- ing; and a medium-pressure plug arranged in the second housing and in- cluding: a second baffle arranged in the first cavity, where the sec- ond baffle has a diameter less than the first cavity and greater than the second cavity; a third pipe body slidably arranged in the second cavity, having an outer diameter matching an inner diameter of the second cavity, and having an upper end fixedly connected to a bottom of the second baffle, wherein an outer peripheral surface of the third pipe body is provided with a water permeable hole; a third magnet fixedly arranged on a top of the second baffle and repelling the first magnet; and a first elastic block fixedly arranged on a top of the third magnet to block the water outlet.

Preferably, the low-pressure converter includes: a third housing having the same structure as the first hous- ing; and a low-pressure plug arranged in the third housing and includ- ing: a third baffle arranged in the first cavity, where the third baffle has a diameter less than the first cavity and greater than the second cavity; a fourth pipe body arranged in the first cavity and having a lower end fixedly connected to a top of the third baffle and an upper end fixedly provided with a fourth magnet repelling the first magnet, where a peripheral surface of the fourth pipe body is provided with a water permeable hole; a fifth pipe body slidably arranged in the second cavity, having an outer diameter matching an inner diameter of the second cavity, and having an upper end fixedly connected to a bottom of the second baffle; and a second elastic block fixedly arranged on a top of the fourth magnet to block the water outlet; where the third baffle is provided with a water permeable hole communicating with the fourth pipe body and the fifth pipe body.

Preferably, the water spraying member includes a spray head, and a water inlet of the spray head is in communication with a wa- ter outlet of the high-pressure converter.

Preferably, the water dripping member includes a water drip- ping pipe, and a water inlet of the water dripping pipe is in com- munication with the water outlet of the medium-pressure converter.

Preferably, the water infiltrating member includes a water infiltrating pipe, and a water inlet of the water infiltrating pipe is in communication with the water outlet of the low-pressure converter.

Preferably, the first magnet and the second magnet are ring magnets.

Preferably, a top of the second magnet is provided with a third elastic block, a lower end of the third elastic block is fixedly connected to the second magnet, and a diameter of an outer peripheral surface of the third elastic block matches an inner di- ameter of the water outlet.

Compared with the prior art, the three-dimensional irrigation 5 system for companion planting provided in the present invention has the following beneficial effects: 1. The three-dimensional irrigation system for companion planting according to the present invention, which integrates spray irrigation, infiltrating irrigation, etc., may irrigate both deep roots of fruit trees and shallow roots of interplanted crops, operation is simple, an application range is wide, not only a pipeline laying cost is saved, but also the irrigation efficiency is greatly improved. 2. In the present invention, magnets are used instead of met- al springs as pressure transmission members, to transmit pressure of a pipeline to elastic blocks in a non-contact manner so as to open/close water outlets of converters, a ferrite magnet or a neo- dymium-iron-boron magnet resists pressure and acid and alkali, and is not prone to rust, and compared with a metal spring manner for opening/closing the elastic blocks of the water outlets, this man- ner increases the service life of the converters and has a wide range of pressure adjustment. 3. In the present invention, water flow mainly flows through a gap in the middles of the plug, and the plug has a diameter slightly less than the second cavity of the converter, such that the plug may move smoothly in the second cavity of the converter.

This design avoids the hazards such as an excessive gap of the plug between the inner walls of the second cavity of the convert- er, and uneven pressure of the plugs, which result in left and right shaking of the plug in the housing of the converter and fur- ther in unstable water flow.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a three-dimensional irriga- tion system for companion planting according to the present inven- tion;

FIG. 2 (a) is a schematic diagram of a water spraying member according to the present invention;

FIG. 2 (b) is a schematic diagram of a water dripping member according to the present invention;

FIG. 2 (c) is a schematic diagram of a water infiltrating member according to the present invention;

FIG. 3 (a) is a schematic diagram of a low-pressure plug ac- cording to the present invention;

FIG. 3 (b) is a schematic diagram of a medium-pressure plug according to the present invention;

FIG. 3 {c) is a schematic diagram of a high-pressure plug ac- cording to the present invention;

FIG. 4 is a schematic diagram of a first housing according to the present invention;

FIG. 5 (a) is a schematic diagram of a first use state of a low-pressure converter according to the present invention;

FIG. 5 (b) is a schematic diagram of a second use state of a low-pressure converter according to the present invention;

FIG. 6 (a) 1s a schematic diagram of a first use state of a medium-pressure converter according to the present invention;

FIG. 6 (b) is a schematic diagram of a second use state of a medium-pressure converter according to the present invention;

FIG. 6 (c) is a schematic diagram of a third use state of a medium-pressure converter according to the present invention;

FIG. 7 (a) 1s a schematic diagram of a first use state of a high-pressure converter according to the present invention;

FIG. 7 (b) is a schematic diagram of a second use state of a high-pressure converter according to the present invention; and

FIG. 7 (c) is a schematic diagram of a third use state of a high-pressure converter according to the present invention.

Brief description of the reference numbers: 1. water supply pipe; 2. high-pressure converter; 201. water spraying member; 202. first baffle; 203. second pipe body; 204. second magnet; 205. first pipe body; 206. third elastic block; 207. first cavity; 208. second cavity; 209. first magnet; 210. first housing; 211. water outlet pipe; 212. threaded nipple; 3. medium-pressure converter; 301. water dripping member; 302. second baffle; 303. third pipe body; 304. third magnet; 305. first elas-

tic block; 4. low-pressure converter; 401. water infiltrating mem- ber; 402. third baffle; 403. fifth pipe body; 404. fourth magnet; 405. fourth pipe body; and 406. second elastic block.

DETAILED DESCRIPTION OF THE EMBODIMENTS

In conjunction with FIGs. 1-7, particular embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present inven- tion is not limited by the particular embodiments.

It is to be noted that irrigation objects of the three- dimensional irrigation system for companion planting according to the present invention include fruit trees, crops and vegetables.

Position A shown in FIG. 1 represents a fruit tree, and the fruit tree may be an apple tree, a peach tree, a citrus tree, a loquat tree, a poplar plum tree, a litchi tree, a longan tree, a banana tree, a pineapple tree, a grape tree, a persimmon tree, a pear tree, a kiwi tree, and a jujube tree. Position B shown in FIG. 1 represents a crop plant, and the crop may be a wheat, barley, rye, oat, corn, sorghum, millet, glutinous millet, cotton, beans, yams, highland barley, broad beans, etc. Position C shown in FIG. 1 rep- resents a vegetable, and the vegetable may be radish, Chinese cab- bage, celery, leek, garlic, Chinese onion, carrot, snake melon, cabbage, jerusalem artichoke, jack bean, Chinese parsley, lettuce, daylily, pepper, cucumber, tomato, coriander, etc. The present in- vention does not limit fruit trees, crops and vegetables.

Example 1

As shown in FIG. 1, a three-dimensional irrigation system for companion planting provided in the present invention includes a water supply pipe 1, and further includes a shallow irrigation de- vice for irrigating shallow roots and a deep irrigation device for irrigating deep roots.

The shallow irrigation device includes a high-pressure con- verter 2, a water inlet of the high-pressure converter 2 is in communication with the water supply pipe 1, a water outlet of the high-pressure converter 2 is communication with a water spraying member 201, the high-pressure converter 2 is used for supplying high-pressure water in the water supply pipe 1 to the water spray-

ing member 201, and the water spraying member 201 selects a spray head.

The deep irrigation device is arranged below the shallow ir- rigation device and includes a low-pressure converter 4, a water inlet of the low-pressure converter 4 is in communication with the water supply pipe 1, a water outlet of the low-pressure converter 4 is in communication with a water infiltrating member 401, the low-pressure converter 4 is used for supplying low-pressure water in the water supply pipe 1 to the water infiltrating member 401, and the water infiltrating member 401 selects a water infiltrating pipe.

The shallow irrigation device and the deep irrigation device are arranged, so as to irrigate both deep roots of fruit trees and shallow roots of interplanted crops.

In order to further increase the way of multi-stage irriga- tion, the system further includes a middle irrigation device, the middle irrigation device is arranged between the shallow irriga- tion device and the deep irrigation device and includes a medium- pressure converter 3, a water inlet of the medium-pressure con- verter 3 is in communication with the water supply pipe 1, a water outlet of the medium-pressure converter 3 is in communication with a water dripping member 301, and the water dripping member 301 se- lects a water dripping pipe.

During use, a user divides a root system water absorption ar- ea from top to bottom into three parts of shallow, middle and deep root systems as shown in FIG. 1 of the present invention according to main water absorption areas of a fruit tree, a crop and a vege- table. The spray head shown in FIG. 2 (a), the water dripping pipe shown in FIG. 2 (b), and the water infiltrating pipe shown in FIG. 2 ({c) of the present invention are then placed at respective heights. The number of the spray head, the water dripping pipe and the water infiltrating pipe is reasonably set according to fruit trees, crops, and vegetables line spacing and row spacing. In the present invention, water inlets of irrigation members in FIGs. 2 (a), 2 (b) and 2 (c) may be directly connected to the water out- lets of the corresponding pressure converters. In this case, the number of pressure converters required is high. The irrigation members in FIGs. 2 (a), 2 (b) and 2 (cc) may also be connected to laterals or branches of the water supply pipe 1, and only the pressure converters need to be arranged on the laterals or branch- es. In this case, only three pressure converters are needed theo- retically to complete the control over the water supply to the en- tire irrigation system.

As shown in FIG 7, in this example, the high-pressure con- verter 2 includes a first housing 210 and a high-pressure plug. As shown in FIG. 4, the first housing 210 includes: a column; a first cavity 207 provided in the column; a second cavity 208 provided in a bottom of the first cavity 207, where the second cavity 208 has a diameter less than the first cavity 207, and the first cavity 207 is in communication with the second cavity 208; and a first magnet 209 fixedly arranged on an inner top wall of the first cav- ity 207. A bottom of the column is provided with a water inlet in communication with an interior of the second cavity 208, and the water inlet is connected to a threaded nipple 212. A top of the column is provided with a water outlet in communication with an interior of the first cavity 207, and the water outlet is connect- ed to a water outlet pipe 211. In order not to block water outlet from the water outlet, the first magnet 209 is provided as a ring magnet.

The high-pressure plug is arranged in the first housing 210.

As shown in FIG. 3{(c), the high-pressure plug includes: a first baffle 202 arranged in the first cavity 207 and having a diameter less than the first cavity 207 and greater than the second cavity 208; a first pipe body 205 arranged in the first cavity 207 and having a lower end fixedly connected to a top of the first baffle 202 and an upper end fixedly provided with a second magnet 204 re- pelling the first magnet 209, where a peripheral surface of the first pipe body 205 is provided with a water permeable hole, and an upper end of the first pipe body 205 is provided with a water permeable hole communicating the water outlet and the first pipe body 205; and a second pipe body 203 slidably arranged in the sec- ond cavity 208, having an outer diameter matching an inner diame- ter of the second cavity 208, and having an upper end fixedly con- nected to a bottom of the first baffle 202, where a peripheral surface of the second pipe body is provided with a water permeable hele.

In order to communicate the upper end of the first pipe body 205 with the water outlet, the second magnet 204 is further pro- vided as a ring magnet, a top of the second magnet 204 is provided with a third elastic block 206 that is ring-shaped, a lower end of the third elastic block 206 is fixedly connected to the second magnet 204, and a diameter of an outer peripheral surface of the third elastic block 206 matches an inner diameter of the water outlet.

When the first baffle 202 pushed by water pressure to move upwards, the water permeable hole in the peripheral surface of the second pipe body 203 moves out of the second cavity 208, to be in communication with the first cavity 207.

Working principle of the example

A distance between the two magnets in the first cavity 207 is marked as x; and a repulsive force between the two magnets is marked as RF, and an upper pressure limit during low-pressure working is marked as LP (lower pressure).

When the elastic block is completely attached to a water out- let recess in a top layer of the first cavity 207 in FIG. 4, the distance between the two magnets in the first cavity 207 is marked as L, and the repulsive force is largest and marked as RFyxax- When the baffle is completely attached to a bottom plate of the first cavity 207 in FIG. 4, the distance between the two magnets is marked as S, and the repulsive force smallest and marked as RF,,-

Pipe water pressure is h, and gravitational acceleration constant is g.

The repulsive force between the two magnets in the first cav- ity 207 satisfies the following formula:

RF=K—+c (1)

When the elastic block is completely attached to the water outlet recess at the inner top of the first cavity 207, the repul- sive force between two adjacent magnets is largest, and the maxi- mum repulsive force is:

REnax = K +c

When the baffle is completely attached to an inner bottom surface of the first cavity 207, the repulsive force between the two magnets in the first cavity 207 is smallest, and the minimum repulsive force is:

RE pin = Kz +c (2)

In the above formulas, K, b and c are a repulsive force coef- ficient, an exponent, and a constant respectively, RFnax is a maxi- mum repulsive force and RF, is a minimum repulsive force.

High pressure-spraying mode: (1) When the pipeline water pressure h is less than a sum of the repulsive force RF; and a mass M:*g of the high-pressure plug in FIG. 3{c}, that is, h < RF,,tM:*qg:

As shown in FIG. 7(c), the first baffle 202 is attached to a lower bottom surface of the first cavity 207, in this case, water flow in the second cavity 208 cannot pass through the first baffle 202 into the first cavity 207, a water flow channel is closed, and the water supply stops. (2) When the pipeline water pressure h is greater than

RFaintM:*g and less than RFhartM:*g, that is, RF, tM.*g<h<RE,,, *M.*g (L<x<S):

As shown in FIG. 7 (a), the water pressure pushes the first baffle 202 upwards, the water flow passes through the water perme- able hole in the peripheral surface of the second pipe body 203 into the first cavity 207, the water flow passes from two sides of the first baffle 202 into an upper portion of the first baffle 202 in the first cavity 207, and the water flow is divided into two parts: one part flows out of the water outlet through the water permeable hole at an upper end of the first baffle 202, and the other part bypasses a gap between the third elastic block 206 and a top wall of the first cavity 207 and then flows out of the water outlet.

As the pressure gradually increases, the distance x between the first magnet 209 and the second magnet 204 gradually decreas- es, so does a water passing section area and thus a water outlet flow rate.

(3) When the pipeline water pressure h is greater than the sum of the repulsive force REyax and the mass M;*g of the high- pressure plug in FIG. 3(c), that is, h > RE, tM: *g:

As shown in FIG. 7(b), the third elastic block 206 is com- pletely attached to the water outlet recess in the top layer of the first cavity 207. In this case, the water flow can only pass from the water permeable hole in the peripheral surface of the second pipe body 203 on a lower side of the first baffle 202 into the water permeable hole in an upper side of the first baffle 202, and then flows out of the water outlet through the water permeable hole in the top of the first pipe body 205, where the water pass- ing section area is unchanged, and the water outlet flow rate is stable.

Example 2

In this example, unlike the example described above, when a middle root system needs to be irrigated, automatic conversion of irrigation areas is achieved by means of a medium-pressure con- verter. As shown in FIG. 6, the medium-pressure converter includes a second housing 310 and a medium-pressure plug, and the second housing 310 has the same structure as the first housing 210.

The medium-pressure plug is arranged in the second housing 310. As shown in FIG. 3(b), the medium-pressure plug includes a second baffle 302 arranged in the first cavity 207, where the sec- ond baffle 302 has a diameter less than the first cavity 207 and greater than the second cavity 208; a third pipe body 303 slidably arranged in the second cavity 208, having an outer diameter match- ing an inner diameter of the second cavity 208, and having an up- per end fixedly connected to a bottom of the second baffle 302, where an outer peripheral surface of the third pipe body is pro- vided with a water permeable hole; a third magnet 304 fixedly ar- ranged on a top of the second baffle 302 and repelling the first magnet 209; and a first elastic block 305 fixedly arranged at a top of the third magnet 304, where the first elastic block 305 is used for blocking the water outlet when the second baffle 302 moves upward to the topmost portion.

Working principle of the example

M, is marked as a mass of the medium-pressure plug in FIG. 3

(b), RFnax is a maximum repulsive force between two magnets in the first cavity 207, and RFmim is a minimum repulsive force between the magnets. When the elastic block is completely attached to a water outlet recess in a top layer of the first cavity 207 in FIG. 4, the distance between the two magnets in the first cavity 207 is marked as L. When the baffle is completely attached to a bottom plate of the first cavity 207 in FIG. 4, the distance between the two magnets is marked as S. g is a gravitational acceleration con- stant.

Medium pressure-dripping irrigation mode: (1) When the pipeline water pressure h is less than

RFmin+M:*g, that is, h < RF,tM:*g:

As shown in FIG. 6{(b), the second baffle 302 is attached to a lower bottom surface of the first cavity 207, since the water per- meable hole in the peripheral surface of the third pipe body 303 is located below the second baffle 302, water flow cannot pass through the third pipe body 303 into the first cavity 207, a water flow channel is closed, and the water supply stops. (2) When the pipeline water pressure h is greater than

REnaxtM:2*9g; that is, REnimtM:*g<h<REnax 1M:*9g (L<x<3):

As shown in FIG. 6(a), in this case, the water pressure push- es the second baffle 302 upwards, and the water flow flows into the first cavity 207 through the water permeable hole in the pe- ripheral surface of the third pipe body 303, and then flows out of the water outlet.

As the pressure gradually increases, the distance x between the first magnet 209 and the second magnet 204 gradually decreas- es, so does a water passing section area and thus a water outlet flow rate. (3) When the pipeline water pressure h is greater than

RFnaxtM:*9: that is, h > RFaatM:*%9g:

As shown in FIG. 6(c), the water pressure pushes the second baffle 302 upwards, and the first elastic block 305 is completely attached to the recess of the water outlet at the top of the first cavity 207. In this case, the water flow channel is closed, and the water supply stops.

Example 3

In this example, unlike the examples described above, when a deep root system needs to be irrigated, low-pressure water needs to be supplied to a water infiltrating pipe by means of a low- pressure converter. As shown in FIG. 5, the low-pressure converter includes a third housing 410 and a low-pressure plug, and the third housing 410 has the same structure as the first housing 210.

The low-pressure plug is arranged in the third housing 410.

As shown in FIG. 3(a), the low-pressure plug includes: a third baffle 402 arranged in the first cavity 207, where the third baf- fle 402 has a diameter less than the first cavity 207 and greater than the second cavity 208; a fourth pipe body 405 arranged in the first cavity 207 and having a lower end fixedly connected to a top of the third baffle 402 and an upper end fixedly provided with a fourth magnet 404 repelling the first magnet 209, where a periph- eral surface of the fourth pipe body 405 is provided with a water permeable hole; a fifth pipe body 403 slidably arranged in the second cavity 208, having an outer diameter matching an inner di- ameter of the second cavity 208, and having an upper end fixedly connected to a bottom of the second baffle 302; and a second elas- tic block 406 fixedly arranged on a top of the fourth magnet 404 for blocking the water outlet when the third baffle 402 moves to an uppermost position; where the third baffle 402 is provided with a water permeable hole communicating the fourth pipe body 405 with the fifth pipe body 403.

Working principle of the example

M; is marked as a mass of the low-pressure plug in FIG. 3 (a), RFmax 1s a maximum repulsive force between two magnets in the first cavity 207, and RFmim is a minimum repulsive force between the magnets. When the elastic block is completely attached to a water outlet recess in a top layer of the first cavity 207 in FIG. 4, the distance between the two magnets in the first cavity 207 is marked as L. When the baffle is completely attached to a bottom plate of the first cavity 207 in FIG. 4, the distance between the two magnets is marked as S; g is a gravitational acceleration con- stant.

Low pressure-infiltrating irrigation mode:

(1) When the pipeline water pressure h is less than a sum of the repulsive force RFmin and a mass M;*g of the plug of the low- pressure converter in FIG. 3(a), that is, h < RFamtM*g:

As shown in FIG. 5(a), the third baffle 402 is attached to an inner bottom surface of the first cavity 207. In this case, water flow in the second cavity 208 passes through the water permeable hole in the third baffle 402 into the first cavity 207, and then flows out of the water outlet, a water passing section area is un- changed, and a flow rate of the water outlet is stable under the condition of a given pressure. (2) When the pipeline water pressure h is greater than

RFnintM:*g and less than RE +M:*9g; that is, RFuntM.*g<h<RE,g, tM.*g (L<x<S):

As shown in FIG. 5(a), in this case, the water flow in the second cavity 208 may still flow into the first cavity 207 through the water permeable hole in the third baffle 402, and then flow out of the water outlet.

As the pressure gradually increases, the distance x between the first magnet 209 and the second magnet 204 gradually decreas- es, so does a water passing section area and thus a water outlet flow rate. (3) When the pipeline water pressure h is greater than the sum of the repulsive force RE,,, and the mass M;*g of the low- pressure plug in FIG. 3(a), that is, h > RFaartM:*9:

As shown in FIG. 5(b), the second elastic block 406 moves up- wards to be completely attached to the water outlet recess at the top of the first cavity 207, to block the water outlet. In this case, the water flow channel is closed, and the water supply stops.

In the present invention, the first magnet 209, the second magnet 204, the third magnet 304 and the fourth magnet 404 are ferrite magnets or neodymium-iron-boron magnets. The ferrite mag- net or the neodymium-iron-boron magnet resists pressure and acid and alkali, and is not prone to rust.

It is to be noted that the shallow root system D, the middle root system E and the deep root system F shown in FIG. 1 are rela-

tive and do not have a strict scale range, and moreover, the water spraying member for the shallow root system, the water dripping member for the middle root system and the water infiltrating mem- ber for the deep root system in the present invention are not in- telligent in irrigation of vegetables, crops and fruit trees, but the corresponding irrigation members selected according to the relative root system depths. For instance, the fruit trees of a persimmon tree, an apple tree and a grape tree have different wa- ter absorption areas of root system, and the irrigation system de- scribed in FIG. 1 may also be used. Furthermore, the fruit-crop- vegetable planting mode combined randomly may also have a vegeta- ble root system greater than a crop root system, or a crop root system greater than a fruit tree root system, for instance, a yam root system is greater than a wheat root system, and in this case, a wheat irrigation mode may be selected as sprinkler irrigation, and a yam irrigation mode may be selected as dripping irrigation.

Wheat and yam listed here are not sown simultaneously, only to il- lustrate that the irrigation system of the present invention may be flexibly combined.

Therefore, the three-dimensional irrigation system for com- panion planting according to the present invention, which inte- grates spray irrigation, infiltrating irrigation, etc., may irri- gate both deep roots of fruit trees and shallow roots of inter- planted crops, operation is simple, an application range is wide, not only a pipeline laying cost is saved, but also the irrigation efficiency is greatly improved. In the present invention, the first magnet, the second magnet, the third magnet and the fourth magnet are ferrite magnets or neodymium-iron-boron magnets. The ferrite magnet or the neodymium-iron-boron magnet resists pressure and acid and alkali, and is not prone to rust, and compared with a metal spring manner for opening/closing the elastic blocks of the water outlets, this manner increases the service life of the con- verters and has a wide range of pressure adjustment. In the pre- sent invention, water flow mainly flows through a gap in the mid- dles of the plug, and the plug has a diameter slightly less than the second cavity of the converter, such that the plug may move smoothly in the second cavity of the converter. This design avoids the hazards such as an excessive gap of the plug between the inner walls of the second cavity of the converter, and uneven pressure of the plugs, which result in left and right shaking of the plug in the housing of the converter and further in unstable water flow.

The above disclosure is only preferred examples of the pre- sent invention, the examples of the present invention are not lim- ited thereto, and any variations will be apparent to those skilled in the art should fall within the scope of protection of the pre- sent invention.

Claims

CONCLUSIESCONCLUSIONS

1. Driedimensionaal irrigatiesysteem voor combinatiebeplanting, omvattende een watertoevoerleiding (1), en verder omvattende: een hogedrukomvormer (2) met een waterinlaat die in verbinding staat met de watertoevoerleiding (1); een watersproeiorgaan (201) met een waterinlaat die in verbinding staat met een wateruitlaat van de hogedrukomvormer (2), waarbij de hogedrukomvormer (2) wordt gebruikt voor het toevoeren van water onder hoge druk in de watertoevoerleiding (1) naar het water- sproeiorgaan (201); een lagedrukomvormer (4) met een waterinlaat die in verbinding staat met de watertoevoerleiding (1); en een waterinfiltrerend orgaan (401) aangebracht onder het water- sproeiorgaan (201) en met een waterinlaat die in verbinding staat met een wateruitlaat van de lagedrukomvormer (4), waarbij de lage- drukomvormer (4) wordt gebruikt voor het toevoeren water onder la- ge druk in de watertoevoerleiding (1) naar het waterinfiltrerende orgaan (401).A three-dimensional irrigation system for combination planting, comprising a water supply pipe (1), and further comprising: a high-pressure converter (2) with a water inlet communicating with the water supply pipe (1); a water spray device (201) having a water inlet communicating with a water outlet of the high pressure converter (2), the high pressure converter (2) being used to supply high pressure water in the water supply line (1) to the water spray device ( 201); a low-pressure converter (4) with a water inlet connected to the water supply pipe (1); and a water infiltrating member (401) arranged below the water spraying member (201) and having a water inlet communicating with a water outlet of the low pressure transducer (4), the low pressure transducer (4) being used for supplying water under the - high pressure in the water supply line (1) to the water infiltrating device (401).

2. Driedimensionaal irrigatiesysteem voor combinatiebeplanting volgens conclusie 1, verder omvattende een middendrukomvormer (3) met een waterinlaat die in verbinding staat met de watertoevoer- leiding (1); en een waterdruppelorgaan (301) dat is aangebracht tussen het watersproeiorgaan (201) en het waterinfiltrerende or- gaan (401) en met een waterinlaat die in verbinding staat met een wateruitlaat van de middendrukomvormer (3), waarbij het mid- dendrukomvormer (3) wordt gebruikt voor het toevoeren van mid- dendruk water in de watertoevoerleiding {1) naar het waterdruppel- orgaan (301).A three-dimensional irrigation system for combination planting according to claim 1, further comprising a medium pressure transducer (3) with a water inlet communicating with the water supply pipe (1); and a water dripping means (301) arranged between the water spraying means (201) and the water infiltrating means (401) and having a water inlet communicating with a water outlet of the medium pressure transducer (3), the medium pressure transducer (3) is used for supplying medium pressure water in the water supply line {1) to the water dripper (301).

3. Driedimensionaal irrigatiesysteem voor combinatiebeplanting volgens conclusie 2, waarbij de hogedrukomvormer (2) omvat: een eerste behuizing (210) omvattende: een kolom die inwendig is voorzien van een eerste holte (207), waarbij een tweede holte (208) is aangebracht in een bodem van de eerste holte (207), waar-A three-dimensional irrigation system for combination planting according to claim 2, wherein the high-pressure transducer (2) comprises: a first housing (210) comprising: a column internally provided with a first cavity (207), a second cavity (208) being arranged in a bottom of the first cavity (207), where

bij de tweede holte (208) een diameter heeft die kleiner is dan dan de eerste holte (207), een bodem van de kolom is voorzien van een waterinlaat die in verbinding staat met een binnenkant van de tweede holte (208), en een bovenkant van de kolom is voorzien van een wateruitlaat die in verbinding staat met een binnenkant van de eerste holte (207); en een eerste magneet (209) die vast is aange- bracht op een binnenste bovenwand van de eerste holte (207); en een in de eerste behuizing (210) aangebrachte hogedrukplug, omvat- tende: een eerste schot (202) dat is opgesteld in de eerste holte (207) en met een diameter die kleiner is dan de eerste holte (207) en die groter is dan de tweede holte (208); een eerste pijplichaam (205) dat is opgesteld in de eerste holte (207) en met een ondereinde dat vast is verbonden met een boven- zijde van het eerste schot (202) en een boveneinde dat vast is voorzien van een tweede magneet (204) die de eerste magneet af- stoot ( 209), waarbij een omtreksoppervlak van het eerste pijp- lichaam (205) is voorzien van een waterdoorlatend gat, en een bo- veneinde van het eerste pijplichaam (205) is voorzien van een wa- terdoorlatend gat dat in verbinding staat met de wateruitlaat en het eerste pijplichaam (205); en een tweede pijplichaam (203) dat verschuifbaar is opgesteld in de tweede holte (208), met een buitendiameter die past bij een bin- nendiameter van de tweede holte (208), en met een boveneinde dat vast is verbonden met een bodem van het eerste schot (202), waar- bij een omtreksvlak van het tweede pijplichaam is voorzien van een waterdoorlatend gat.the second cavity (208) has a diameter smaller than the first cavity (207), a bottom of the column is provided with a water inlet communicating with an interior of the second cavity (208), and a top of the column is provided with a water outlet communicating with an inside of the first cavity (207); and a first magnet (209) fixedly mounted on an inner top wall of the first cavity (207); and a high-pressure plug disposed in the first housing (210), comprising: a first baffle (202) disposed in the first cavity (207) and having a diameter smaller than the first cavity (207) and larger then the second cavity (208); a first pipe body (205) arranged in the first cavity (207) and having a lower end fixedly connected to an upper side of the first baffle (202) and an upper end fixedly provided with a second magnet (204); which repels the first magnet (209), wherein a peripheral surface of the first pipe body (205) is provided with a water-permeable hole, and an upper end of the first pipe body (205) is provided with a water-permeable hole communicating with the water outlet and the first pipe body (205); and a second pipe body (203) slidably disposed in the second cavity (208), having an outer diameter matching an inner diameter of the second cavity (208), and having an upper end fixedly connected to a bottom of the first partition (202), wherein a peripheral surface of the second pipe body is provided with a water-permeable hole.

4. Driedimensionaal irrigatiesysteem voor combinatiebeplanting volgens conclusie 3, waarbij de middendrukomvormer (3) omvat: een tweede behuizing (310) met dezelfde structuur als de eerste behuizing (210); en een in de tweede behuizing (310) aangebrachte middendrukplug, om- vattende: een tweede schot (302) dat is opgesteld in de eerste holte (207}, waarbij het tweede schot (302) een diameter heeft die kleiner is dan de eerste holte (207) en die groter is dan de tweede holte een derde pijplichaam (303) dat verschuifbaar is opgesteld in de tweede holte (208), met een buitendiameter die past bij een bin- nendiameter van de tweede holte (208), en waarbij een boveneinde vast is verbonden met een bodem van het tweede schot (302) , waar- bij een buitenomtreksvlak van het derde pijplichaam is voorzien van een waterdoorlatend gat; een derde magneet (304) die vast is aangebracht op een bovenkant van het tweede schot (302) en die de eerste magneet (209) afstoot; en een eerste elastisch blok (305) dat vast is aangebracht bovenop de derde magneet (304) om de waterafvoer te blokkeren.The three-dimensional irrigation system for combination planting according to claim 3, wherein the medium pressure transducer (3) comprises: a second housing (310) with the same structure as the first housing (210); and a medium pressure plug disposed in the second housing (310), comprising: a second baffle (302) disposed in the first cavity (207), the second baffle (302) having a diameter smaller than the first cavity (207) and which is larger than the second cavity, a third pipe body (303) slidably disposed in the second cavity (208), having an outer diameter matching an inner diameter of the second cavity (208), and having a top end is fixedly connected to a bottom of the second partition (302), wherein an outer peripheral surface of the third pipe body is provided with a water-permeable hole; a third magnet (304) that is fixedly mounted on a top of the second partition (302) ) and which repels the first magnet (209); and a first elastic block (305) fixedly mounted on top of the third magnet (304) to block water drainage.

5. Driedimensionaal irrigatiesysteem voor combinatiebeplanting volgens conclusie 3, waarbij de lagedrukomvormer (4) omvat: een derde behuizing (410) met dezelfde structuur als de eerste be- huizing (210); en een in de derde behuizing (410) aangebrachte lagedrukplug, omvat- tende: een derde schot (402) dat is opgesteld in de eerste holte (207), waarbij het derde schot (402) een diameter heeft die kleiner is dan de eerste holte (207) en die groter is dan de tweede holte (208); een vierde pijplichaam (405) dat is opgesteld in de eerste holte (207) en met een ondereinde vast verbonden met een bovenzijde van het derde schot (402) en een boveneinde dat vast is voorzien van een vierde magneet (404) die de eerste magneet (209) afstoot, waarbij een omtreksoppervlak van het vierde pijplichaam (405) is voorzien van een waterdoorlatend gat; een vijfde pijplichaam (403) dat verschuifbaar is opgesteld in de tweede holte (208), met een buitendiameter die past bij een bin- nendiameter van de tweede holte (208), en met een boveneinde dat vast is verbonden met een bodem van het tweede schot (302) ; en een tweede elastisch blok (406) dat vast is aangebracht op een bo- venkant van de vierde magneet (404) om de wateruitlaat te blokke- ren; waarbij het derde schot (402) is voorzien van een waterdoorlatend gat dat in verbinding staat met het vierde pijplichaam (405) en het vijfde pijplichaam (403).The three-dimensional irrigation system for combination planting according to claim 3, wherein the low pressure transducer (4) comprises: a third housing (410) with the same structure as the first housing (210); and a low pressure plug disposed in the third housing (410), comprising: a third baffle (402) disposed in the first cavity (207), the third baffle (402) having a diameter smaller than the first cavity (207) and which is larger than the second cavity (208); a fourth pipe body (405) arranged in the first cavity (207) and having a lower end fixedly connected to an upper side of the third bulkhead (402) and an upper end fixedly provided with a fourth magnet (404) holding the first magnet (209) repels, wherein a peripheral surface of the fourth pipe body (405) is provided with a water-permeable hole; a fifth pipe body (403) slidably disposed in the second cavity (208), having an outer diameter matching an inner diameter of the second cavity (208), and having an upper end fixedly connected to a bottom of the second shot (302) ; and a second elastic block (406) fixedly mounted on a top of the fourth magnet (404) to block the water outlet; wherein the third partition (402) is provided with a water-permeable hole that communicates with the fourth pipe body (405) and the fifth pipe body (403).

6. Driedimensionaal irrigatiesysteem voor combinatiebeplanting volgens conclusie 1, waarbij het watersproeiorgaan (201) een sproeikop omvat, en een waterinlaat van de sproeikop in verbinding staat met een wateruitlaat van de hogedrukomvormer (2).The three-dimensional irrigation system for combination planting according to claim 1, wherein the water spray member (201) comprises a spray head, and a water inlet of the spray head communicates with a water outlet of the high-pressure converter (2).

7. Driedimensionaal irrigatiesysteem voor combinatiebeplanting volgens conclusie 1, waarbij het waterinfiltrerende orgaan (401) een waterinfiltrerende pijp omvat, en een waterinlaat van de wa- terinfiltrerende pijp in verbinding staat met de wateruitlaat van de lagedrukomvormer (4).The three-dimensional irrigation system for combination planting according to claim 1, wherein the water infiltrating member (401) comprises a water infiltrating pipe, and a water inlet of the water infiltrating pipe communicates with the water outlet of the low pressure transducer (4).

8. Driedimensionaal irrigatiesysteem voor combinatiebeplanting volgens conclusie 2, waarbij het waterdruppelorgaan (301) een wa- terdruppelbuis omvat, en een waterinlaat van de waterdruppelbuis in verbinding staat met de wateruitlaat van de middendrukomvormerThe three-dimensional irrigation system for combination planting according to claim 2, wherein the water drip member (301) comprises a water drip tube, and a water inlet of the water drip tube communicates with the water outlet of the medium pressure transducer

(3).(3).

9. Driedimensionaal irrigatiesysteem voor combinatiebeplanting volgens conclusie 1, waarbij de eerste magneet (209) en de tweede magneet (204) ringmagneten zijn.The three-dimensional irrigation system for combination planting according to claim 1, wherein the first magnet (209) and the second magnet (204) are ring magnets.

10. Driedimensionaal irrigatiesysteem voor combinatiebeplanting volgens conclusie 9, waarbij een bovenzijde van de tweede magneet (204) is voorzien van een derde elastisch blok (206) dat ringvor- mig is, een ondereinde van het derde elastische blok (206) vast is verbonden met de tweede magneet (204), en een diameter van een buitenomtreksvlak van het derde elastische blok (206) overeenkomt met een binnendiameter van de wateruitlaat.A three-dimensional irrigation system for combination planting according to claim 9, wherein an upper side of the second magnet (204) is provided with a third elastic block (206) that is annular, a lower end of the third elastic block (206) is fixedly connected to the second magnet (204), and a diameter of an outer peripheral surface of the third elastic block (206) corresponds to an inner diameter of the water outlet.