An automatic sublayered underground drip irrigation device

Abstract

The present application relates to a kind of underground automatic layering drip irrigation device, including water supply branch pipe, solenoid valve, several constant pressure drips, water inlet hose, layering water distribution device, PLC controller, first moisture sensor, second moisture sensor, third moisture sensor, display, water supply branch pipe is connected water source, water supply branch pipe is closed to layering water distribution device, water inlet hose one end is connected water supply branch pipe by constant pressure drip, the other end is connected layering water distribution device, using constant pressure drip to regulate water volume, first moisture sensor, second moisture sensor, third moisture sensor sample different depth soil moisture content, PLC controller triggers the rotation of micro motor of layering water distribution device after a certain angle, adjust to open different water inlet, in turn guide control water flow enters different depth irrigation water storage cavity and corresponding water outlet, realize the irrigation of different depth in vertical direction, promote plant root system to develop to deep, enhanced resistance to disaster ability.

Description

Technical Field

[0001] This invention relates to the field of underground stratified drip irrigation technology, and in particular to an underground stratified drip irrigation device. Background Technology

[0002] Traditional irrigation typically uses sprinkler irrigation. Due to the unique climate characteristics of western regions, water evaporation is high, making it difficult to irrigate deep underground. As a result, the roots of crops and vegetation often have difficulty absorbing water and nutrients, which not only wastes water resources but also has serious consequences for crop and vegetation cultivation.

[0003] Currently, subsurface drip irrigation is increasingly becoming the mainstream development direction for crop and vegetation irrigation worldwide. Existing drip irrigation systems suffer from uneven vertical irrigation, leading to uneven root distribution. Although subsurface drip irrigation saves water resources to some extent, it still cannot solve the problem of adjusting irrigation depth according to plant root growth. Due to the "water and fertilizer attraction" characteristics of plant roots, it is difficult to promote deeper root development, resulting in a reduction in the plant's ability to resist extreme disasters. Summary of the Invention

[0004] Therefore, it is necessary to provide an automatic underground stratified drip irrigation device to regulate the depth of underground irrigation, promote deep root development and nutrient absorption in plants, and thus enhance the resilience against extreme weather events by increasing the density of plant roots. This invention provides the following technical solution:

[0005] An underground automatic stratified drip irrigation device includes a water supply branch pipe, a solenoid valve, several constant pressure drippers, a water inlet hose, and a stratified water distribution device. The water supply branch pipe is connected to a water source and supplies water to the stratified water distribution device. The solenoid valve controls the opening and closing of the water supply branch pipe. One end of the water inlet hose is connected to the water supply branch pipe through a constant pressure dripper, and the other end is connected to the stratified water distribution device. The constant pressure dripper is used to adjust the water volume. A PLC controller is electrically connected to a first moisture sensor, a second moisture sensor, and a third moisture sensor. The first, second, and third moisture sensors sample the soil moisture content at different depths and send the moisture content data to the PLC controller for processing. The PLC controller is electrically connected to the solenoid valve and controls the on / off state of the solenoid valve. The PLC controller is also electrically connected to several micro motors of the stratified water distribution device.

[0006] Furthermore, the stratified water distribution device includes a drip irrigation pipe, a micro motor, a fixing rod, and a semi-circular plug; the micro motor is located above the stratified water distribution device and is fixedly connected to the drip irrigation pipe; the semi-circular plug is set inside the water distribution chamber of the drip irrigation pipe and covers the partition plate; the fixing rod passes through the center of the drip irrigation pipe and its two ends are fixedly connected to the output shaft of the micro motor and the center of the semi-circular plug, respectively.

[0007] Furthermore, the drip irrigation pipe is rod-shaped, with an insertion rod at the bottom. The insertion rod is an inverted triangle, which facilitates the insertion of the drip irrigation pipe into the soil. A water inlet is provided on the upper left side of the drip irrigation pipe, which is connected to the water inlet hose to facilitate water flow. A water distribution chamber is provided below the water inlet. A partition plate is provided at the bottom of the water distribution chamber, and three water inlets are provided on the partition plate: a first water inlet, a second water inlet, and a third water inlet. The three water inlets are arranged in an array in a circular direction. The first water inlet is connected to the first layer of irrigation and water storage chamber, the second water inlet is connected to the second layer of irrigation and water storage chamber, and the third water inlet is connected to the third layer of irrigation and water storage chamber.

[0008] Furthermore, the first, second, and third water storage chambers are isolated from each other, and a first, second, and third water outlet are respectively provided below the first, second, and third water storage chambers. The three water outlets at different depths meet the vertical water filling requirements.

[0009] Furthermore, the depth of the first outlet is 15cm, the depth of the second outlet is 25cm, and the depth of the third outlet is 35cm.

[0010] Furthermore, a water-blocking plate is installed between the third-layer water storage cavity and the inserted probe.

[0011] Furthermore, the constant pressure dripper is a Netafim compensated dripper.

[0012] Furthermore, the PLC controller is also electrically connected to a display.

[0013] The beneficial effects of this invention are:

[0014] (1) The opening and closing of the stratified water distribution device and the water inlet volume are controlled by solenoid valve and constant pressure dripper, and the water inlet control is realized in an adjustable manner.

[0015] (2) The soil moisture content corresponding to the root system at different depths is detected in real time by the first moisture sensor, the second moisture sensor and the third moisture sensor. When the soil moisture content is found to be lower than the moisture content required for crop growth, the PLC sensor automatically controls the micro motor of the layered water distribution device to work. After the micro motor rotates to a certain angle, it can adjust and open different water inlets, thereby guiding and controlling the water flow into the irrigation storage chamber at different depths and the corresponding water outlet, realizing irrigation at different depths in the vertical direction. According to different plant species and growth cycle characteristics, it promotes the plant roots to develop deeper.

[0016] (3) The rod-shaped drip irrigation pipe is easy to bury and remove, which not only saves physical strength, but also shortens the foundation construction cycle in the plant cultivation process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the underground automatic stratified drip irrigation device of the present invention;

[0018] Figure 2 This is a schematic diagram of the water separation device of the present invention;

[0019] Figure 3 This is a schematic diagram of the drip irrigation pipe structure of the present invention;

[0020] Figure 4 for Figure 2 Top AA section view;

[0021] Figure 5 for Figure 3 Top BB section view.

[0022] Reference numerals: 1-Water supply branch pipe; 2-Solenoid valve; 3-Constant pressure dripper; 4-Inlet hose; 5-Layered water distribution device; 6-PLC controller; 7-First moisture sensor; 8-Second moisture sensor; 9-Third moisture sensor; 10-Display; 51-Drip irrigation pipe; 510-Insertion rod; 511-Water inlet; 512-Water distribution chamber; 513-Separator plate; 5140-First water inlet; 5141-First layer irrigation and storage chamber; 5142-First water outlet; 5150-Second water inlet; 5151-Second layer irrigation and storage chamber; 5152-Second water outlet; 5160-Third water inlet; 5161-Third layer irrigation and storage chamber; 5162-Third water outlet; 517-Water baffle plate; 52-Micro motor; 53-Fixing rod; 54-Semi-circular plug. Detailed Implementation

[0023] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is referred to as being "directly on" another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only. The terms "first," "second," "third," "fourth," "fifth," "sixth," and "seventh" used in this invention do not represent a specific quantity or order, but are merely used for distinguishing names.

[0025] Example: Figure 1-5 As shown, this invention discloses an underground automatic stratified drip irrigation device, comprising a water supply branch pipe 1, a solenoid valve 2, several constant pressure drippers 3, a water inlet hose 4, a stratified water distribution device 5, a PLC controller 6, a first moisture sensor 7, a second moisture sensor 8, a third moisture sensor 9, and a display 10; the water supply branch pipe 1 is connected to a water source to supply water to the stratified water distribution device; the solenoid valve 2 controls the opening and closing of the water supply branch pipe 1; one end of the water inlet hose 4 is connected to the water supply branch pipe 1 through the constant pressure drippers 3, and the other end is connected to the stratified water distribution device 5; the constant pressure drippers 3 are used to adjust the water volume; the PLC controller 6 is electrically connected to the first moisture sensor 7, the second moisture sensor 8, and the third moisture sensor 9, which respectively sample the soil moisture content at different depths and send the moisture content data to the PLC controller 6 for processing; the PLC controller 6 is electrically connected to the solenoid valve 2 to control the on and off of the solenoid valve 2; the PLC controller 6 is also electrically connected to the micro motors 52 of several stratified water distribution devices 5.

[0026] The stratified water distribution device 5 includes a drip irrigation pipe 51, a micro motor 52, a fixing rod 53, and a semi-circular plug 54. The micro motor 52 is located above the stratified water distribution device 5 and is fixedly connected to the drip irrigation pipe 51. The semi-circular plug 54 is located inside the water distribution chamber 512 of the drip irrigation pipe 51 and covers the partition plate 513. The fixing rod 53 passes through the center of the drip irrigation pipe 51, and its two ends are fixedly connected to the output shaft of the micro motor 52 and the center of the semi-circular plug 54, respectively.

[0027] The drip irrigation pipe 51 is rod-shaped, with an insertion rod 510 at the bottom. The insertion rod 510 is an inverted triangle to facilitate insertion of the drip irrigation pipe 51 into the soil. A water inlet 511 is provided on the upper left side of the drip irrigation pipe 51, which is connected to the water inlet hose 4 to facilitate water flow. A water distribution chamber 512 is provided below the water inlet. A partition plate 513 is provided at the lower part of the water distribution chamber 512. Three water inlets are provided on the partition plate 513, namely the first water inlet 5140, the second water inlet 5150, and the third water inlet 5160. The three water inlets are arranged in an array in a circular direction. The first water inlet 5140 is connected to the first layer of irrigation and water storage chamber 5141, the second water inlet 5150 is connected to the second layer of irrigation and water storage chamber 5151, and the third water inlet 5160 is connected to the third layer of irrigation and water storage chamber 5161.

[0028] The first-layer water storage chamber 5141, the second-layer water storage chamber 5151, and the third-layer water storage chamber 5161 are isolated from each other. The first-layer water storage chamber 5141, the second-layer water storage chamber 5151, and the third-layer water storage chamber 5161 are respectively provided with a first water outlet 5142, a second water outlet 5152, and a third water outlet 5162 below them. The three water outlets at different depths meet the vertical water filling requirements.

[0029] The micro motor 52 can control the rotation direction of the semi-circular plug 54. When the soil moisture sensor detects that the water content in different soil depths is lower than the threshold, the micro motor 52 is activated to drive the semi-circular plug 54 to rotate, closing two of the water inlets and leaving only the water inlet corresponding to the required drip irrigation depth open, guiding the water flow into the corresponding irrigation storage chamber for controlled drip irrigation of the area that needs irrigation.

[0030] The first moisture sensor 7, the second moisture sensor 8, and the third moisture sensor 9 collect soil moisture content at different depths and transmit the data to the PLC controller 6. The PLC controller 6 compares the currently collected real-time moisture content data with the moisture content data required by the crop. When it is determined that the soil moisture content at a certain depth is lower than the minimum moisture content required by the crop, the PLC controller 6 triggers the micro motor 52 to start working, driving the semi-circular plug 54 to rotate and open the water inlet corresponding to that depth, thus enabling drip irrigation of soil at different depths.

[0031] Specifically, irrigation of soil areas close to the surface requires opening the first inlet 5140 to meet the drip irrigation needs of the first layer of plant roots; irrigation of soil areas at a moderate distance from the surface requires opening the second inlet 5150 to meet the drip irrigation needs of the second layer of plant roots; and irrigation of soil areas deeper than the surface requires opening the third inlet 5160 to meet the drip irrigation needs of the third layer of plant roots.

[0032] The specific steps are as follows:

[0033] (1) Under normal conditions, the micro motor 52 is in the reset state, the semi-circular plug 54 covers and closes the first water inlet 5140 and the second water inlet 5150, while the third water inlet 5160 is open, so as to drip irrigate the deep roots of the plant and make the crop roots develop into the deep layer.

[0034] (2) When the second moisture sensor 8 detects that the soil moisture content in a suitable distance from the ground surface is lower than the required minimum moisture content, the PLC controller 6 triggers the micro motor 52 to start, driving the semi-circular plug 54 to rotate 120 degrees clockwise. The semi-circular plug 54 covers and closes the first water inlet 5140 and the third water inlet 5160, opening the second water inlet 5150 to drip irrigate the second layer of plant roots.

[0035] (3) When the first moisture sensor 7 detects that the soil moisture content in the area close to the ground surface is lower than the required minimum moisture content, the PLC controller 6 triggers the micro motor 52 to start, driving the semi-circular plug 54 to rotate counterclockwise by 120 degrees. The semi-circular plug 54 covers and closes the second water inlet 5150 and the third water inlet 5160, opening the first water inlet 5140 to drip irrigate the roots of plants near the ground surface.

[0036] (4) When the first moisture sensor 7, the second moisture sensor 8, and the third moisture sensor 9 simultaneously detect that the irrigation water content in the above-mentioned area is higher than the maximum water content required for crop production, the PLC controller 6 triggers the solenoid valve 2 to close, cutting off the water supply.

[0037] In this embodiment, the preferred depths are: 15cm for the first outlet 5142, 25cm for the second outlet 5152, and 35cm for the third outlet 5162.

[0038] A water-blocking plate 517 is provided between the third-layer water-filling and water-storage cavity 5161 and the insertion rod body 510.

[0039] The constant pressure dripper 3 is a Netafim compensated dripper.

[0040] The PLC controller 6 is also electrically connected to the display 10 to transmit the soil depth moisture data corresponding to the first moisture sensor 7, the second moisture sensor 8, and the third moisture sensor 9 to the display 10 for real-time sampling and monitoring.

[0041] Working principle: The soil moisture content at different root depths is detected in real time by the first moisture sensor 7, the second moisture sensor 8, and the third moisture sensor 9, and compared with the moisture content required for crop growth. When the soil moisture content is found to be lower than that required for crop growth, the PLC controller 6 automatically controls the micro motor 52 to work, thereby controlling the rotation direction of the semi-circular plug 54, closing two of the water inlets, and leaving only the water inlet corresponding to the required drip irrigation depth open. This guides the water flow into the corresponding irrigation storage chamber, enabling controllable drip irrigation of the area that needs irrigation. This not only makes efficient use of water resources and avoids water waste, but also achieves irrigation at different vertical depths according to different plant species and growth cycle characteristics, promoting the deep development of plant roots and increasing their resistance to disasters.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An underground automatic stratified drip irrigation device, characterized in that, The system includes a water supply branch pipe, a solenoid valve, several constant-pressure drippers, an inlet hose, a stratified water distribution device, a PLC controller, a first moisture sensor, a second moisture sensor, a third moisture sensor, and a display. The water supply branch pipe connects to a water source and supplies water to the stratified water distribution device. The solenoid valve controls the opening and closing of the water supply branch pipe. One end of the inlet hose is connected to the water supply branch pipe via a constant-pressure dripper, and the other end is connected to the stratified water distribution device. The constant-pressure dripper is used to regulate the water volume. The PLC controller is electrically connected to the first, second, and third moisture sensors, which sample soil moisture content at different depths and transmit the moisture content data to the PLC controller for processing. The PLC controller is also electrically connected to the solenoid valve to control its on / off state. Furthermore, the PLC controller is electrically connected to several micro motors of the stratified water distribution device. The stratified water distribution device includes a drip irrigation pipe, a micro motor, a fixing rod, and a semi-circular plug. The micro motor is located above the stratified water distribution device and is fixedly connected to the drip irrigation pipe. The semi-circular plug is set inside the water distribution chamber of the drip irrigation pipe and covers the partition plate. The fixing rod passes through the center of the drip irrigation pipe and its two ends are fixedly connected to the output shaft of the micro motor and the center of the semi-circular plug, respectively. The drip irrigation tube is rod-shaped, with an insertion rod at the bottom. The insertion rod is inverted triangular to facilitate insertion of the drip irrigation tube into the soil. A water inlet is located on the upper left side of the drip irrigation tube, which connects to the inlet hose for easy water flow. A water distribution chamber is located below the water inlet. A partition plate is located below the water distribution chamber, and three water inlets are located on the partition plate: a first water inlet, a second water inlet, and a third water inlet. The three water inlets are arranged in a circular array. The first water inlet is connected to the first irrigation and water storage chamber, the second water inlet is connected to the second irrigation and water storage chamber, and the third water inlet is connected to the third irrigation and water storage chamber. The drip irrigation tube has a hollow tubular structure. The first, second, and third water storage chambers are isolated from each other. A first, second, and third water outlet are respectively provided below the first, second, and third water storage chambers. The first, second, and third water outlets are all located on the side wall of the drip pipe. The three water outlets at different depths meet the vertical water filling requirements. The PLC controller controls the micro motor to work, thereby controlling the rotation direction of the semi-circular plug, closing two of the water inlets, leaving only one water inlet open, and guiding the water flow into the corresponding water storage chamber.

2. The underground automatic stratified drip irrigation device according to claim 1, characterized in that, The first outlet has a depth of 15cm, the second outlet has a depth of 25cm, and the third outlet has a depth of 35cm.

3. The underground automatic stratified drip irrigation device according to claim 1, characterized in that, A water-blocking plate is installed between the third-layer water storage chamber and the inserted probe.

4. The underground automatic stratified drip irrigation device according to claim 1, characterized in that, The constant pressure dripper is a Netafim compensated dripper.

5. The underground automatic stratified drip irrigation device according to claim 1, characterized in that, The PLC controller is also electrically connected to the display.

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