Irrigation system for farmland

Abstract

The utility model relates to the technical field of water conservancy irrigation, in particular to an irrigation system for farmland, which comprises a water collecting tank, the water collecting tank is communicated with a reservoir through a second water flow pipeline, the water collecting tank is communicated with a plurality of water-fertilizer mixing tanks through a first water flow pipeline, and at least two water-fertilizer mixing tanks are arranged on the first water flow pipeline. A first pump body is fixedly mounted on the first water flow pipeline between the water collecting tank and the water-fertilizer mixing tank, an outlet of the water-fertilizer mixing tank is communicated with the irrigation pipeline, a second pump body is fixedly arranged on the pipeline between the water-fertilizer mixing tank and the irrigation pipeline, and a soil meteorological monitoring assembly is fixedly arranged on the irrigation pipeline. The irrigation pipeline comprises an irrigation branch pipe, a plurality of irrigation structures are fixedly arranged on the irrigation branch pipe, a third pump body is fixedly connected in the irrigation branch pipe, at least one water conveying pipe is fixedly arranged at the bottom of the irrigation branch pipe, the third pump body is adjacent to the water conveying pipe, the water conveying pipe comprises a vertically telescopic pipeline, and a valve is fixedly arranged on the water conveying pipe. The irrigation structure comprises a drip irrigation structure and a spraying structure, the spraying structure is located at the top of the irrigation branch pipe, the drip irrigation structure is located at the bottom of the irrigation branch pipe, and the technical problem that different irrigation modes are automatically carried out according to different soil and meteorological parameters is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy irrigation, and specifically, to an irrigation system for farmland. Background Art

[0002] A farmland irrigation system is a water resource management system for agricultural irrigation and is a very important part of agriculture. It ensures that crops can obtain an appropriate amount of water to promote growth. The irrigation system can be simply divided into the following types: surface irrigation, drip irrigation system, sprinkler irrigation system, micro-sprinkler irrigation, center pivot irrigation, and subsurface irrigation. Each irrigation system has its advantages and limitations. Selecting an appropriate irrigation system requires considering factors such as crop type, soil type, climate conditions, water resource availability, and economic cost. The existing irrigation systems have a relatively single irrigation method and cannot accurately control the amount and time of irrigation according to the specific conditions of the farmland, which is prone to wasting water resources.

[0003] The Chinese utility model patent with the patent name of "A water-saving irrigation system for farmland water conservancy management" and the publication number of CN219762111U has been publicly disclosed. This patent includes a control cabinet, a sedimentation tank, a water delivery pipe, a water pump, a filter, a main water pipe, branch water pipes, sprinkler heads, and a soil moisture detector. One end of the water delivery pipe is located in the sedimentation tank, and water is delivered to the main water pipe at the other end through the water pump and the filter. The main water pipe is connected to multiple branch water pipes, and each branch water pipe is provided with multiple sprinkler heads and branch control valves. The soil moisture detector can detect the moisture content in the soil. The flow meter is used to measure the water flow in each branch water pipe. The controller controls the action of the branch control valves according to the soil moisture content and the water flow to achieve the purpose of saving water.

[0004] However, in different production crops in farmland, different irrigation methods are required. While this device saves irrigation water volume, it cannot meet the irrigation methods of different crops, and its application range is relatively small. Summary of the Utility Model

[0005] The purpose of this application is to provide an irrigation system for farmland, which solves the technical problem of automatically performing different irrigation methods according to different soil and meteorological parameters.

[0006] To solve the above technical problems, the solution adopted in this application is as follows:

[0007] An irrigation system for farmland, comprising a water collection tank, wherein the water collection tank is communicated with a reservoir through a second water flow pipeline, the water collection tank is communicated with a plurality of water and fertilizer mixing tanks through a first water flow pipeline, at least two water and fertilizer mixing tanks are arranged on the first water flow pipeline, a first pump body is fixedly installed on the first water flow pipeline between the water collection tank and the water and fertilizer mixing tanks, the outlet of the water and fertilizer mixing tank is communicated with an irrigation pipeline, a second pump body is fixedly arranged on the pipeline between the water and fertilizer mixing tank and the irrigation pipeline, and a soil meteorological monitoring component is fixedly arranged on the irrigation pipeline.

[0008] Preferably, the irrigation pipeline comprises irrigation branch pipes, a plurality of irrigation structures are fixedly arranged on the irrigation branch pipes, a third pump body is fixedly connected in the irrigation branch pipes, at least one water delivery pipe is fixedly arranged at the bottom of the irrigation branch pipes, the third pump body is adjacent to the water delivery pipe, the water delivery pipe comprises a vertically telescopic pipeline, and a valve is fixedly arranged on the water delivery pipe.

[0009] Preferably, the irrigation structure comprises a drip irrigation structure and a sprinkling structure, the sprinkling structure is located at the top of the irrigation branch pipe, and the drip irrigation structure is located at the bottom of the irrigation branch pipe.

[0010] Preferably, the water collection tank comprises a horn-shaped flow guide plate and a box body, the horn-shaped flow guide plate is fixedly arranged on the top of the box body, a filter plate is obliquely arranged on the upper layer of the box body and is fixed in the box body, and filter cotton is fixedly arranged on the lower layer in the box body.

[0011] Preferably, the upper layer of the box body is communicated with the second water flow pipeline, the second water flow pipeline is located above the filter plate, the lower layer of the box body is communicated with the first water flow pipeline, and the first water flow pipeline is located below the filter cotton.

[0012] Preferably, the water and fertilizer mixing tank comprises a stirring member and a tank body, the stirring member is arranged inside the tank body, the stirring member comprises stirring blades and a rotating shaft, the rotating shaft of the stirring member penetrates through the bottom of the tank body and is fixedly connected with the driving shaft of a motor, and an openable sealing plate is arranged on the top of the tank body.

[0013] Preferably, the upper layer of the tank body is communicated with the first water flow pipeline and serves as a fluid inlet, the lower layer of the tank body is communicated with the first water flow pipeline at the other end and serves as a fluid outlet, and a filter screen is fixedly arranged in the first water flow pipeline at the fluid outlet.

[0014] Preferably, the irrigation pipeline comprises a main pipe, at least one irrigation branch pipe is communicated with the main pipe, and an electromagnetic valve is fixedly arranged at one end of the irrigation branch pipe close to the main pipe.

[0015] Preferably, the drip irrigation structure includes a drip nozzle, which is fixedly arranged at the bottom of the irrigation branch pipe. The drip nozzle includes a cavity and drip holes. The cavity is communicated with the main pipe, and an openable and closable drip irrigation valve member is arranged on the inner wall of the cavity.

[0016] Preferably, the spraying structure includes a nozzle, which is fixedly arranged at the top of the irrigation branch pipe. The nozzle includes a cavity and spray holes. The cavity is communicated with the main pipe, and an openable and closable spraying valve member is arranged on the inner wall of the cavity.

[0017] Preferably, a fixing plate is fixedly installed on the side of the irrigation branch pipe. An adjusting column is vertically slidably arranged on the fixing plate. The adjusting column is threadedly matched with an adjusting nut, and the adjusting nut is rotatably arranged on the fixing plate. The top of the adjusting column is fixedly installed with a spraying baffle, and the spraying baffle is located directly above the nozzle.

[0018] Preferably, the soil and meteorological monitoring component includes a vertical rod and a soil parameter module. The vertical rod is adjacent to the irrigation pipeline, and a meteorological monitoring module is fixedly installed on the vertical rod.

[0019] Preferably, the soil parameter module is fixedly installed at the bottom of the support column. The support column fixedly supports the third pump body, and the detection head of the soil parameter module is located in the farmland soil.

[0020] Preferably, a data display screen is fixedly installed on the vertical rod. The display interface of the data display screen is a signal receiving terminal, and the signal receiving terminal is connected to the signal sending ends of the meteorological monitoring module and the soil parameter module.

[0021] The technical solution of the present application has at least the following advantages and beneficial effects:

[0022] Collect rainwater through the water collection tank, store the excess water flow in the reservoir, and replenish it when the water volume in the water collection tank is tight.

[0023] There are three irrigation methods, namely drip irrigation, sprinkler irrigation, and infiltration, on the irrigation branch pipe, and different irrigation methods can be selected according to the growth environment of different crops or different farmland types.

[0024] The soil and meteorological detection component can control different irrigation water volumes according to the meteorological environment and soil parameter environment, and can also control the pumping intensity of each pump body to change different irrigation methods, which can save water while being applicable to a larger range of farmland irrigation. Description of the Drawings

[0025] Figure 1 It is a schematic structural distribution diagram of the present utility model;

[0026] Figure 2 It is a schematic cross-sectional structure diagram of the water collection tank and the water and fertilizer mixing tank in the system.

[0027] Figure 3 It is a schematic cross-sectional structure diagram of the irrigation structure in the system.

[0028] Figure 4 It is a schematic diagram of the partial structure distribution of the system.

[0029] In the figure: 1 - water collecting tank; 2 - first pump body; 3 - water and fertilizer mixing tank; 4 - second pump body; 7 - reservoir; 11 - flared guide plate; 12 - filter plate; 13 - filter cotton; 31 - first water flow pipeline; 32 - stirring member; 33 - motor; 34 - sealing plate; 35 - filter net; 51 - main pipe; 52 - irrigation branch pipe; 53 - irrigation structure; 54 - solenoid valve; 55 - third pump body; 56 - water delivery pipe; 57 - valve; 61 - vertical rod; 62 - meteorological monitoring module; 63 - solar panel; 64 - data display screen; 65 - soil parameter module; 71 - second water flow pipeline; 531 - drip nozzle; 532 - first valve plate; 533 - first spring; 534 - nozzle; 535 - second valve plate; 536 - second spring; 537 - fixing plate; 538 - adjusting column; 539 - adjusting nut; 540 - spraying baffle; 551 - support column. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. If terms such as "center", "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. This is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it should not be construed as a limitation to this application. It should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0032] Embodiment

[0033] Please refer to Figure 1 and Figure 4 The present utility model provides an irrigation system for farmland, including a water collection tank 1, a first pump body 2, a water and fertilizer mixing tank 3, a second pump body 4, a reservoir 7, a first water flow pipeline 31, a second water flow pipeline 71, an irrigation pipeline, and a soil and meteorological detection component.

[0034] Furthermore, the water collection tank 1 is communicated with the reservoir 7 through the second water flow pipeline 71. The water collection tank 1 is connected in series with several water and fertilizer mixing tanks 3 through the first water flow pipeline 31. At least two water and fertilizer mixing tanks 3 are arranged on the first water flow pipeline 31. A first pump body 2 is fixedly installed on the first water flow pipeline 31 between the water collection tank 1 and the water and fertilizer mixing tanks 3. The series outlet of the water and fertilizer mixing tanks 3 is communicated with the irrigation pipeline. A second pump body 4 is fixedly arranged on the pipeline between the water and fertilizer mixing tanks 3 and the irrigation pipeline. The soil and meteorological detection component and the irrigation pipeline are arranged in the same farmland;

[0035] Preferably, the water collection tank 1 stores the water generated by rainfall in the natural environment. When the water collection tank 1 is overfilled with water, it flows into the reservoir 7 through the second water flow pipeline 71 for storage; when it is necessary to fertilize the farmland, different fertilizers are put into different water and fertilizer mixing tanks 3 and mixed with water, and are input into the irrigation pipeline from the outlet of the water and fertilizer mixing tanks 3 for irrigation of the farmland; the soil and meteorological monitoring component detects the soil humidity and meteorological data, and summarizes and displays the monitoring data to the staff.

[0036] Further, the irrigation pipeline includes a main pipe 51, irrigation branch pipes 52, an irrigation structure 53, a solenoid valve 54, a third pump body 55, a water delivery pipe 56, a valve 57, and a support column 511.

[0037] The main pipe 51 is connected to the outlet of the water and fertilizer mixing tank 3. The second pump body 4 pumps the water flow in the water collection tank 1 into the water and fertilizer mixing tank 3. At least one irrigation branch pipe 52 is connected to the main pipe 51. The irrigation branch pipes 52 are arranged in the farmland. A solenoid valve 54 is fixedly arranged at one end of the irrigation branch pipe 52 close to the main pipe 51. The water flow in the corresponding irrigation branch pipe 52 is controlled by the solenoid valve 54. The solenoid valve 54 is connected to the soil meteorological monitoring component by wire. By receiving the monitoring signal, quantitative irrigation of farmland in different areas is carried out.

[0038] A number of irrigation structures 53 are fixedly arranged on the irrigation branch pipes 52. The irrigation structure 53 includes a drip irrigation structure and a spraying structure. A third pump body 55 is fixedly connected in the irrigation branch pipe 52. The bottom of the third pump body 55 is fixedly installed with a support column 511. The support column 511 is fixed in the farmland. At least one water delivery pipe 56 is fixedly arranged at the bottom of the irrigation branch pipe 52. The third pump body 55 is connected to the water delivery pipe 56 through the irrigation branch pipe 52. The water delivery pipe 56 includes a vertically telescopic pipe. There are filter holes at the bottom of the pipe. The pipe can be inserted into the farmland soil to input the water flow into the farmland soil to achieve infiltration. A valve 57 is fixedly arranged on the water delivery pipe 56.

[0039] The third pump body 55 is used to pump the water flow in the irrigation branch pipe 52 into the water delivery pipe 56 to achieve infiltration. At the same time, when the farmland is flooded due to heavy rain, the water in the farmland is pumped out through the reverse suction of the third pump body 55.

[0040] Further, the number of the third pump bodies 55 matches the number of the water delivery pipes 56 one by one; the number of the solenoid valves 54 matches the number of the water delivery pipes 56 one by one.

[0041] Preferably, the functions of drip irrigation, spraying, and infiltration of the farmland can be simultaneously realized on the irrigation branch pipes 52. The pumping and suction of the third pump body 55 can ensure that the water flow rates at different lengths of the irrigation branch pipes 52 are consistent, and ensure that the drip irrigation amounts at different drip irrigation positions on the irrigation branch pipes 52 are consistent. When the pumping and suction power of the third pump body 55 increases to a certain extent, the water pressure inside the irrigation branch pipe 52 increases. In this embodiment, the drip irrigation structure and the spraying structure are designed. Whether the drip irrigation structure and the spraying structure work is directly related to the water pressure in the irrigation branch pipe 52. Thus, the third pump body 55 is also used to control the drip irrigation structure to close and the spraying structure to open for spraying the farmland. The water delivery pipe 56 can not only carry out infiltration. When the farmland is affected by heavy rain weather and has water accumulation, the telescopic pipe of the irrigation structure 53 extends from the soil to the water accumulation area on the farmland surface. Through the reverse pumping and suction of the third pump body 55, the accumulated water can be input into the water collection tank 1 through the pipeline to prevent the crops in the farmland from being submerged.

[0042] As a preferred solution, the telescopic pipe described above can be of manual or electric structure. Since the telescopic pipe is a conventional prior art, it will not be described in detail in this embodiment.

[0043] Furthermore, on the inner wall of the cavity of the irrigation branch pipe 52, there are provided an openable and closable drip irrigation valve member and a spraying valve member. The drip irrigation valve member is set as a first valve plate 532 and a first spring 533, and the spraying valve member is set as a second valve plate 535 and a second spring 536.

[0044] Preferably, the third pump body 55 has four working states, respectively corresponding to drip irrigation, spraying, infiltration, and back suction; when performing drip irrigation, the third pump body 55 pumps water at low pressure (at this time, the valve on the water delivery pipe 56 is closed); when spraying, the third pump body 55 pumps water at high pressure (at this time, the valve on the water delivery pipe 56 is closed); when infiltrating, the third pump body 55 pumps water at medium pressure (at this time, the valve on the water delivery pipe 56 is closed. In the medium pressure state, a force to overcome the first spring 533 is applied to the first valve plate 532, and the first valve plate 532 intercepts the chamber, preventing drip irrigation; the second valve plate 535 cannot overcome the force of the second spring 536, and the second valve plate 535 intercepts the chamber, preventing spraying). When performing back suction, the third pump body 55 sucks water at medium pressure. At this time, drip irrigation and spraying are closed, and the water delivery pipe 56 sucks water back to the collection tank 1.

[0045] Please refer to Figure 2 , in some embodiments, the collection tank 1 includes a box body, a horn-shaped guide plate 11, a filter plate 12, and a filter cotton 13.

[0046] Furthermore, the horn-shaped guide plate 11 is fixedly arranged at the top of the box body. The upper layer of the box body is inclined with a filter plate 12, and the filter plate 12 is fixed inside the box body. The collected rainwater filters the large particulate impurities it carries through the filter plate 12, and through the inclined surface, the large particulate impurities are gathered on one side for convenient collection and cleaning;

[0047] The lower layer inside the box body is fixedly provided with a filter cotton 13 to adsorb the harmful substances mixed in the rainwater, so as to avoid affecting the growth of agricultural crops;

[0048] The upper layer of the box body is connected to a second water flow pipe 71, and the second water flow pipe 71 is located above the filter plate 12. The lower layer of the box body is connected to a first water flow pipe 31, and the first water flow pipe 31 is located below the filter cotton 13. The water flow filtered by the filter plate 12 and the filter cotton 13 is pumped by the first pump body 2 and flows into the irrigation pipeline through the first water flow pipe 31. When the box body of the collection tank 1 is full of water, the water flow will flow into the reservoir 7 through the second water flow pipe 71 on the upper layer of the box body for simple storage. When the collection tank 1 is short of water, the water stored in the reservoir 7 can be pumped into the collection tank 1 through the water pump arranged therein through the second water flow pipe 71 to maintain the irrigation work.

[0049] In some embodiments, the water-fertilizer mixing tank 3 includes a tank body, a first water flow pipeline 31, a stirring member 32, a motor 33, a sealing plate 34, and a filter screen 35.

[0050] Furthermore, a stirring member 32 is arranged inside the tank body. The stirring member 32 includes stirring blades and a rotating shaft. The rotating shaft of the stirring member 32 passes through the bottom of the tank body and is fixedly connected to the driving shaft of the motor 33. A sealable sealing plate 34 is arranged at the top of the tank body. When performing water-fertilizer mixing, fertilizers are put into the tank body through the sealing plate 34, and then are evenly dissolved and mixed with the water flow in the tank body by the stirring member 32.

[0051] The upper layer of the tank body is communicated with the first water flow pipeline 31 as the water inlet, and the lower layer of the tank body is communicated with the first water flow pipeline 31 at the other end as the water outlet. A filter screen 35 is fixedly arranged in the first water flow pipeline 31 at the water outlet. The water outlet is arranged at the lower layer of the tank body to facilitate the full stirring of fertilizers. The filter screen 35 can prevent incompletely dissolved fertilizers from entering the next water-fertilizer mixing tank 3 or flowing into the irrigation pipeline to cause blockage.

[0052] The arrangement of multiple water-fertilizer mixing tanks 3 enables the staff to mix different types of fertilizers in the water flow and prevents the contact and caking between different solid fertilizers.

[0053] Please refer to Figure 3 , in some embodiments, the drip irrigation structure includes a drip nozzle 531, a first valve plate 532, and a first spring 533.

[0054] Furthermore, the drip nozzle 531 is fixedly arranged at the bottom of the irrigation branch pipe 52. The drip nozzle 531 includes a cavity and drip holes communicated with the cavity. The cavity is communicated with the inside of the main pipe 51, and a drip irrigation valve member that can be opened and closed is arranged on the inner wall of the cavity.

[0055] The drip irrigation valve member is arranged as the first valve plate 532 and the first spring 533. One side of the first valve plate 532 is rotatably arranged on the inner wall of the cavity, and the other side swings in the cavity. The other side of the first valve plate 532 is connected to the inner wall of the cavity through the first spring 533. The first spring 533 is located above the first valve plate 532, and a stopper corresponding to the first valve plate 532 is fixedly arranged on the inner wall of the cavity.

[0056] Preferably, when the water pressure in the irrigation branch pipe 52 is small, the first valve plate 532 swings upward under the elastic force of the first spring 533 above, the cavity is not closed by the first valve plate 532, and the water flow flows into the drip nozzle 531 for drip irrigation; when the water pressure in the irrigation branch pipe 52 is large, the water flow pressure is greater than the elastic force exerted by the first spring 533 on the first valve plate 532, the first valve plate 532 swings downward and abuts against its corresponding stopper, the first valve plate 532 closes the cavity, and the water flow cannot flow into the drip nozzle 531, and the drip irrigation stops.

[0057] In some embodiments, the spraying structure includes a nozzle 534, a second valve plate 535, a second spring 536, a fixing plate 537, an adjusting column 538, an adjusting nut 539, and a spraying stopper 540.

[0058] Further, the nozzle 534 is fixedly arranged on the top of the irrigation branch pipe 52. The nozzle 534 includes a cavity and spray holes communicating with the cavity. The cavity communicates with the inside of the main pipe 51, and a spray valve member that can be opened and closed is arranged on the inner wall of the cavity.

[0059] The spray valve member is set as the second valve plate 535 and the second spring 536. One side of the second valve plate 535 is rotatably arranged on the inner wall of the cavity, and the other side swings in the cavity. The other side of the second valve plate 535 is connected to the inner wall of the cavity through the second spring 536. The first spring 533 is located below the first valve plate 532, and a stopper corresponding to the second valve plate 535 is fixedly arranged on the inner wall of the cavity.

[0060] Preferably, when the water pressure in the irrigation branch pipe 52 is small, the second valve plate 535 swings downward under the elastic force of the second spring 536 below, and the second valve plate 535 abuts against its corresponding stopper, and the cavity is closed by the second valve plate 535, and the water flow cannot be pumped into the nozzle 534 for spraying; when the water pressure in the irrigation branch pipe 52 is large, the water flow pressure is greater than the elastic force exerted by the second spring 536 on the second valve plate 535, and the second valve plate 535 swings upward and no longer closes the cavity, and the water flow is pumped into the nozzle 534 through the cavity for spraying.

[0061] Further, a fixing plate 537 is fixedly installed on the side surface of the irrigation branch pipe 52. An adjusting column 538 is vertically slidably arranged on the fixing plate 537. The adjusting column 538 is threadedly matched with the adjusting nut 539. The adjusting nut 539 is rotatably arranged on the fixing plate 537. The top of the adjusting column 538 is fixedly installed with a spraying stopper 540, and the spraying stopper 540 is located directly above the nozzle 534.

[0062] Preferably, the surface of the spraying stopper 540 is an elliptical surface. When the water flow column sprayed from the nozzle 534 below hits the surface of the spraying stopper 540, the water flow column will be dispersed by the elliptical surface of the spraying stopper 540, and the water flow will be sprayed in an umbrella shape to the surrounding, making the spraying area larger; the height of the irrigation branch pipe 528 can be adjusted by rotating the adjusting nut 539, so that the relative distance between the spraying stopper 540 and the nozzle 534 changes, thereby changing the spraying height and range of the water flow.

[0063] In some embodiments, the soil and meteorological monitoring component includes a vertical rod 61, a meteorological monitoring module 62, a solar panel 63, a data display screen 64, a soil parameter module 65, and a controller.

[0064] Furthermore, the vertical rod 61 is adjacent to the irrigation pipeline. A meteorological monitoring module 62 is fixedly installed on the vertical rod 61. The soil parameter module 65 is fixedly installed at the bottom of the support column 551. The detection head of the soil parameter module 65 is located in the farmland soil. A solar panel 63 is fixedly installed on the vertical rod 61. A data display screen 64 is fixedly installed on the vertical rod 61. The display interface of the data display screen 64 is a signal receiving terminal. The signal receiving terminal is connected to the signal sending ends of the meteorological monitoring module 62 and the soil parameter module 65 to collect and display soil and meteorological data. The solar panel is connected to a storage battery through a conversion and energy storage circuit, and the storage battery supplies power to the meteorological monitoring module, the data display screen, and the soil parameter module.

[0065] Preferably, the meteorological monitoring module 62 collects wind direction and climate data and transmits the real-time weather data to the data display screen 64 for display. When it shows overcast, the water supply of the irrigation system is reduced. When it shows rainy, the water supply of the irrigation system is stopped.

[0066] The soil parameter module 65 collects soil humidity and composition data and transmits the real-time soil humidity and nutrient level to the data display screen 64 for display. When the soil parameter module 65 located in a certain irrigation branch pipe 52 detects that the soil humidity is too high or too low, it sends a signal to the controller, and the controller controls the opening and closing of the solenoid valve 54. When the soil parameter module 65 detects that a certain nutrient component in the soil is low, it will be displayed on the data display screen 64 so that the staff can add the corresponding fertilizer to fertilize the farmland.

[0067] The soil parameter module, the meteorological monitoring module, the data display screen, and the controller can adopt existing modules, and no detailed description is given in this embodiment.

[0068] Preferably, when the soil and meteorological detection component detects that the soil component fertility is insufficient, the controller executes the fertilization work program. At this time, it notifies the staff to manually add fertilizer to the water-fertilizer mixing tank 3. After receiving the signal of adding completion sent from the manual end, it controls the first pump body 2 to work and the second pump body 4 not to work, pumps water into the water-fertilizer mixing tank 3. After pumping for a set time, the first pump body 2 stops working. The controller controls the motor 33 to drive the stirring member 32 to work. After executing for a set time, the stirring member 32 stops working. The second pump body 4 is turned on, the solenoid valve 54 is turned on, the third pump body 55 is turned on (controls the pumping intensity of the third pump body 55), and the valve on the water delivery pipe 56 is closed, so that the water-fertilizer mixture is discharged into the soil from the drip irrigation structure.

[0069] When the soil and meteorological detection component detects that the soil humidity is insufficient, the controller executes the water supply engineering program. The first pump body 2, the second pump body 4, the solenoid valve 54 are opened, and the third pump body 55 is turned on to replenish water to the soil.

[0070] Specifically, for different crops, different irrigation methods are required. Therefore, when executing the water supply working procedure, the pump suction intensity of the third pump body 55 is different, and the different pump suction intensities determine whether drip irrigation, spraying or infiltration is used.

[0071] So far, the embodiments of the present invention have been described in detail. To avoid obscuring the concept of the present invention, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions of the present invention based on the above description, and the scope of the present invention is defined by the appended claims.

Claims

1. An irrigation system for farmland, characterized in that: The invention comprises a water collecting box (1), wherein the water collecting box (1) is connected to a water reservoir (7) via a second water flow pipe (71), and the water collecting box (1) is connected to a plurality of water-fertilizer mixing tanks (3) via a first water flow pipe (31), and at least two water-fertilizer mixing tanks (3) are arranged on the first water flow pipe (31), and a first pump body (2) is fixedly installed on the first water flow pipe (31) between the water collecting box (1) and the water-fertilizer mixing tank (3), and the outlet of the water-fertilizer mixing tank (3) is connected to an irrigation pipeline, and a second pump body (4) is fixedly arranged on the pipeline between the water-fertilizer mixing tank (3) and the irrigation pipeline, and a soil meteorological monitoring component is fixedly arranged on the irrigation pipeline; The irrigation pipeline comprises an irrigation branch pipe (52), a plurality of irrigation structures (53) are fixedly arranged on the irrigation branch pipe (52), a third pump body (55) is fixedly connected to the irrigation branch pipe (52), at least one water pipe (56) is fixedly arranged at the bottom of the irrigation branch pipe (52), the third pump body (55) is adjacent to the water pipe (56), the water pipe (56) comprises a vertically telescopic pipe, and a valve (57) is fixedly arranged on the water pipe (56); The irrigation structure (53) comprises a drip irrigation structure and a spraying structure, wherein the spraying structure is located at the top of the irrigation branch pipe (52), and the drip irrigation structure is located at the bottom of the irrigation branch pipe (52).

2. An irrigation system for farmland according to claim 1, characterized in that: The water collecting box (1) comprises a trumpet-shaped guide plate (11) and a box body, wherein the trumpet-shaped guide plate (11) is fixedly arranged on the top of the box body, a filter plate (12) is obliquely arranged on the upper layer of the box body, the filter plate (12) is fixed in the box body, and filter cotton (13) is fixedly arranged in the lower layer of the box body; The upper layer of the box is connected to a second water flow pipe (71), and the second water flow pipe (71) is located above the filter plate (12). The lower layer of the box is connected to a first water flow pipe (31), and the first water flow pipe (31) is located below the filter cotton (13).

3. An irrigation system for farmland according to claim 1, characterized in that: The water-fertilizer mixing tank (3) comprises a stirring member (32) and a tank body, wherein the stirring member (32) is arranged inside the tank body, wherein the stirring member (32) comprises stirring blades and a rotating shaft, wherein the rotating shaft of the stirring member (32) passes through the bottom of the tank body and is fixedly connected to the driving shaft of the motor (33), and an openable and closable sealing plate (34) is arranged on the top of the tank body; The upper layer of the tank body is connected to the first water flow pipe (31) and is a fluid inlet. The lower layer of the tank body is connected to the first water flow pipe (31) at the other end and is a fluid outlet. A filter screen (35) is fixedly arranged in the first water flow pipe (31) at the fluid outlet.

4. An irrigation system for farmland according to claim 1, characterized in that: The irrigation pipeline comprises a main pipe (51), the main pipe (51) is connected to at least one irrigation branch pipe (52), and a solenoid valve (54) is fixedly arranged at one end of the irrigation branch pipe (52) close to the main pipe (51).

5. The irrigation system for farmland according to claim 1, characterized in that: The drip irrigation structure comprises a drip nozzle (531), wherein the drip nozzle (531) is fixedly arranged at the bottom of the irrigation branch pipe (52), wherein the drip nozzle (531) comprises a cavity and a drip hole, wherein the cavity is communicated with the interior of the main pipe (51), and an openable and closable drip irrigation valve is arranged on the inner wall of the cavity.

6. The irrigation system for farmland according to claim 1, characterized in that: The spraying structure comprises a nozzle (534), the nozzle (534) is fixedly arranged on the top of the irrigation branch pipe (52), the nozzle (534) comprises a cavity and a spray hole, the cavity is communicated with the main pipe (51), and the inner wall of the cavity is provided with an openable and closable spraying valve; A fixing plate (537) is fixedly installed on the side of the irrigation branch pipe (52), and an adjusting column (538) is vertically slidably arranged on the fixing plate (537). The adjusting column (538) is threadably matched with an adjusting nut (539), and the adjusting nut (539) is rotatably arranged on the fixing plate (537). A spraying block (540) is fixedly installed on the top of the adjusting column (538), and the spraying block (540) is located directly above the nozzle (534).

7. An irrigation system for farmland according to claim 1, characterized in that: The soil meteorological monitoring component comprises a vertical pole (61) and a soil parameter module (65); the vertical pole (61) is adjacent to the irrigation pipeline, and the meteorological monitoring module (62) is fixedly mounted on the vertical pole (61); The soil parameter module (65) is fixedly mounted on the bottom of a support column (551), the support column (551) fixedly supports the third pump body (55), and the detection head of the soil parameter module (65) is located in the farmland soil.

8. An irrigation system for farmland according to claim 7, characterized in that: A data display screen (64) is fixedly mounted on the vertical pole (61), and the display interface of the data display screen (64) is a signal receiving terminal, and the signal receiving terminal is connected to the signal sending end of the meteorological monitoring module (62) and the soil parameter module (65).

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