A water and fertilizer all-in-one machine

Abstract

The present invention discloses a water-fertilizer integrated machine, which belongs to the field of water-fertilizer integrated machines, and includes a support frame and a mixing box. A water supply pump is installed on the support frame. A first water pumping pipe is connected between the water inlet of the water supply pump and the mixing box, and a first drain pipe is connected at the water outlet of the water supply pump; a purification component is arranged at one end of the first drain pipe away from the water supply pump, and the purification component is used to prevent the dripping port of the drip irrigation pipe from being blocked. The purification component includes a filter tank, and the liquid inlet of the filter tank is installed at one end of the first drain pipe. The present invention can realize that the particle impurities on the surface of the filter screen cylinder move along the lower spiral surface of the spiral scraper through the rotation of the filter screen cylinder, and the particle impurities adsorbed on the surface of the filter screen cylinder can be cleaned up in time through the rotation of the filter screen cylinder, so that the blockage of the filter screen cylinder can be avoided, which affects the problem of fertilization and irrigation, and also ensures the water conveyance performance of the fertilization and irrigation pipeline.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated water and fertilizer machines, and more specifically to an integrated water and fertilizer fertilization machine. Background Art

[0002] As a highly efficient irrigation and fertilization method in modern agriculture, the core of integrated water-fertilizer technology is to dissolve solid fertilizers such as nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer and various trace element fertilizers in water in advance, and carefully mix them into fertilizer-water solution with specific concentration and nutrient ratio. This technology not only improves the utilization rate of fertilizers, but also realizes precise irrigation and fertilization of crops, greatly promoting the growth and yield of crops.

[0003] In the specific implementation process, dissolving solid fertilizer in water is one of the key steps. Due to the complex composition of solid fertilizers, different particle sizes and different dissolution rates, it is often encountered that some solid fertilizers are not fully dissolved. These incompletely dissolved solid fertilizer particles will flow with the fertilizer-water solution during the subsequent irrigation process and eventually reach the drip outlet of the drip irrigation pipe.

[0004] As a core component of water-fertilizer integration technology, the drip irrigation system has extremely fine drip outlets in size and design to ensure that the fertilizer-water solution can drip evenly and accurately onto the roots or leaves of crops. However, these undissolved solid fertilizer particles become the "killers" of the drip outlets. Incompletely dissolved solid fertilizers or other impurities in the fertilizer water can easily accumulate at the drip outlets, forming blockages and causing the drip outlets to fail to work properly. Once the drip outlets are blocked, the crops around them cannot obtain sufficient fertilizer and water, which in turn affects the growth and yield of the crops.

[0005] In order to solve this problem, the prior art usually adopts the method of installing a filter on the water supply pipeline. The filter can effectively filter out impurities and incompletely dissolved solid fertilizer particles in the fertilizer water to ensure the normal operation of the drip irrigation system. However, during the filtering process, as impurities and solid fertilizer particles continue to accumulate, the filter is easily clogged. Once the filter is clogged, it will hinder the flow of the fertilizer solution and affect the water supply efficiency during irrigation and fertilization. Summary of the invention

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide an integrated water and fertilizer application device, which can realize the rotation of the filter screen cylinder so that the particulate impurities on the surface of the filter screen cylinder move along the lower spiral surface of the spiral scraper. The particulate impurities adsorbed on the surface of the filter screen cylinder can be cleaned up in time through the rotation of the filter screen cylinder, thereby avoiding the blockage of the filter screen cylinder and the problem of affecting fertilization and irrigation, and at the same time ensuring the water delivery performance of the fertilization and irrigation pipeline.

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A water-fertilizer all-in-one machine comprises a support frame and a mixing box, a water supply pump is installed on the support frame, a first water pumping pipe is connected between the water inlet of the water supply pump and the mixing box, and a first drain pipe is connected at the water outlet of the water supply pump;

[0009] A purification component is provided at one end of the first drainage pipe away from the water supply pump, and the purification component is used to prevent blockage at the dripping port of the drip irrigation pipe. The purification component includes a filter tank, the liquid inlet of the filter tank is installed at one end of the first drainage pipe, the interior of the first drainage pipe is connected with the interior of the filter tank, a rotating cylinder is provided inside the filter tank, the rotating cylinder is arranged at the liquid inlet of the filter tank, and evenly distributed paddles are fixedly connected to the outer surface of the rotating cylinder, a filter screen cylinder is provided at the lower end of the rotating cylinder, and a spiral scraper is wound on the outer wall of the filter screen cylinder, the upper end of the rotating cylinder is rotatably connected with a cavity cylinder, one side of the cavity cylinder is fixedly connected with the second drainage pipe, one end of the second drainage pipe away from the cavity cylinder passes through the filter tank and is connected to the drip irrigation pipe, the interior of the filter screen cylinder is connected with the interior of the second drainage pipe through the rotating cylinder and the cavity cylinder, the upper end of the cavity cylinder is fixedly connected with a fixing column, the upper end of the fixing column is fixedly connected with the inner wall of the filter tank, the side of the spiral scraper away from the filter screen cylinder is fixedly connected with a support rod, and the end of the support rod away from the spiral scraper is fixedly connected with the inner wall of the filter tank.

[0010] Furthermore, the purification component also includes a counterweight column, the lower end of the counterweight column is fixedly connected to the lower end of the filter screen cylinder, the outer side surface of the counterweight column is sleeved with a grinding cylinder, the inner wall of the grinding cylinder and the outer side surface of the counterweight column are both rough in design, and a space for grinding impurities is left between the inner wall of the grinding cylinder and the outer side surface of the counterweight column, the outer wall of the grinding cylinder is fixedly connected to multiple groups of first connecting columns, the end of the first connecting column away from the grinding cylinder is fixedly connected to the inner wall of the filter tank, and the upper end of the grinding cylinder is fixedly connected to a conical cover.

[0011] Further, the purification component also includes a base cylinder, which is arranged at the lower end of the grinding cylinder, the upper end of the base cylinder is symmetrically fixedly connected with a fan-shaped arc block, the fan-shaped arc block is connected to the edge of the base cylinder, the lower end of the grinding cylinder is symmetrically fixedly connected with a rotating column, the rotating column can move along the upper end of the base cylinder and the upper arc surface of the fan-shaped arc block, the lower end of the base cylinder is fixedly connected with a second connecting column, and the end of the second connecting column away from the base cylinder is fixedly connected to the inner wall of the filter tank;

[0012] The upper end of the filter screen cylinder is inserted into the lower end of the rotating cylinder, a first prismatic sleeve is arranged inside the rotating cylinder, a second prismatic sleeve is arranged inside the filter screen cylinder, prismatic columns are arranged inside the first prismatic sleeve and the second prismatic sleeve, barrier disks are fixedly connected at both upper and lower ends of the prismatic column, a third connecting column is fixedly connected to the outer wall of the first prismatic sleeve, an end of the third connecting column away from the first prismatic sleeve is fixedly connected to the inner wall of the rotating cylinder, a fourth connecting column is fixedly connected to the outer wall of the second prismatic sleeve, an end of the fourth connecting column away from the second prismatic sleeve is fixedly connected to the inner wall of the filter screen cylinder.

[0013] Furthermore, the purification component also includes an elastic airbag, which is fixedly connected to the lower end of the counterweight column. A liquid outlet is opened at the center of the lower end of the elastic airbag, and a water outlet is opened through the center of the upper surface of the base tube, and the water outlet and the liquid outlet correspond to each other.

[0014] Furthermore, a water pump is installed on the support frame, a delivery pipe is fixedly connected between the water outlet of the water pump and the mixing box, a second water pumping pipe is fixedly connected to the water inlet of the water pump, an end of the second water pumping pipe away from the water pump is connected to a return pipe and a third water pumping pipe, the third water pumping pipe is used to extract water from an external source, and the return pipe is connected to an end of the drip irrigation pipe away from the second drainage pipe;

[0015] The first drainage pipe is connected with a liquid pumping assembly, which includes a venturi tube, through which fertilizer water is pumped into the mixing box for injection;

[0016] A regulating component is installed on the pipelines of the first drainage pipe and the third pumping pipe. The regulating component is used to adjust the liquid suction capacity of the venturi tube according to the preset fertilization data. The regulating component includes a detection sensor and a solenoid valve. The irrigation fertilizer water is detected by the detection sensor, and the opening size of the solenoid valve is adjusted based on the detection result. The solenoid valve is installed on the throat pipe of the venturi tube.

[0017] Furthermore, the liquid extraction component also includes a first branch pipe, which is connected to the first drain pipe. There are multiple groups of Venturi tubes, and the lower ends of the multiple groups of Venturi tubes are connected to the first branch pipe. The end of the Venturi tube away from the first branch pipe is connected to the mixing box, the end of the solenoid valve away from the Venturi tube is connected to the liquid extraction pipe, and the end of the liquid extraction pipe away from the Venturi tube is connected to the fertilizer water tank.

[0018] Furthermore, the regulating component also includes a second branch tube, which is connected to the first branch tube, and one end of the second branch tube away from the first branch tube is connected to multiple branch tubes, and the detection sensor is installed on the multiple branch tubes.

[0019] Furthermore, the control component also includes an EC sensor, which is installed on the third water pumping pipe. The conductivity detected by the detection sensor is subtracted from the conductivity detected by the EC sensor to obtain the difference conductivity. The concentration value detected by each group of detection sensors is calculated based on the difference conductivity, and then the opening and closing degree of the corresponding solenoid valve is controlled according to the concentration value detected by each group of detection sensors.

[0020] Furthermore, one end of the multi-component branch pipe away from the second branch pipe is connected to a return pipe, and one end of the return pipe away from the second branch pipe is connected to a mixing box.

[0021] Furthermore, a first liquid sensor and a second liquid sensor are installed on the outer wall of the mixing box, and the second liquid sensor is located above the first liquid sensor.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) In this scheme, the particle impurities on the surface of the filter cylinder are moved along the lower spiral surface of the spiral scraper by rotating the filter cylinder. The particle impurities adsorbed on the surface of the filter cylinder can be cleaned up in time by the rotation of the filter cylinder, thereby avoiding the blockage of the filter cylinder and affecting the fertilization and irrigation problems, and at the same time ensuring the water transmission performance of the fertilization and irrigation pipeline.

[0024] (2) This solution fully grinds the granular impurities between the grinding cylinder and the counterweight column by rotating and moving up and down. This can make the undissolved fertilizer more crushed, so that the granular fertilizer is dissolved in the fertilizer water, avoiding the waste of fertilizer during fertilization due to undissolved fertilizer.

[0025] (3) When fertilizing and irrigating, this solution can calculate the actual concentration of fertilizer water based on the differential conductivity between the fertilizer detection sensor and the EC sensor. This makes the detection result more accurate. By dynamically controlling the solenoid valve to see if the detected concentration meets the concentration range of irrigation fertilizer, the amount of fertilizer sucked by the suction pipe can be dynamically adjusted during fertilization. Through more accurate detection, more accurate control of the amount of fertilizer applied can be achieved, which greatly saves fertilizer use and reduces the fertilizer cost of growers. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is an appearance view of the overall structure of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the filter tank of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure inside the filter tank of the present invention;

[0030] Figure 4 It is a schematic diagram of the structure inside the filter cylinder of the present invention;

[0031] Figure 5 It is a structural schematic diagram of the elastic airbag of the present invention;

[0032] Figure 6 It is a structural schematic diagram of the grinding cylinder of the present invention;

[0033] Figure 7 It is a structural schematic diagram of the base tube of the present invention;

[0034] Figure 8 It is a structural schematic diagram of the liquid extraction component of the present invention;

[0035] Fig. 9 Schematic diagram of the structure of the control component of the present invention

[0036] Fig.10 It is a partial structural schematic diagram of the control component of the present invention.

[0037] Description of the numbers in the figure:

[0038] 1. Support frame; 2. Mixing box; 3. Water supply pump; 4. First water pumping pipe; 5. First drainage pipe; 6. Filter tank; 7. Second drainage pipe; 8. First branch pipe; 9. Liquid pumping pipe; 10. Solenoid valve; 11. Venturi tube; 12. Fertilizer water tank; 13. Second branch pipe; 14. Diverter pipe; 15. Return pipe; 16. Detection sensor; 17. Return pipe; 18. Third water pumping pipe; 19. EC sensor; 20. Water pump; 21. Second water pumping pipe; 22. Delivery pipe; 24. First liquid sensor; 25. Second liquid sensor device; 26, cavity cylinder; 27, fixed column; 28, rotating cylinder; 29, paddle; 30, filter screen cylinder; 31, spiral scraper; 32, support rod; 33, conical cover; 34, first connecting column; 35, grinding cylinder; 36, rotating column; 37, fan-shaped arc block; 38, base cylinder; 39, second connecting column; 40, water outlet; 41, liquid outlet; 42, elastic airbag; 43, counterweight column; 44, first prismatic sleeve; 45, second prismatic sleeve; 46, barrier disc; 47, prismatic column; 48, fourth connecting column; 49, third connecting column. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0040] See also Figures 1 to 10 , a water-fertilizer integrated machine device, comprising a support frame 1 and a mixing box 2, a water supply pump 3 is installed on the support frame 1, a first pumping pipe 4 is connected between the water inlet of the water supply pump 3 and the mixing box 2, and a first drain pipe 5 is connected to the water outlet of the water supply pump 3;

[0041] A purification component is provided at one end of the first drainage pipe 5 away from the water supply pump 3. The purification component is used to prevent blockage at the dripping port of the drip irrigation pipe. The purification component includes a filter tank 6. The liquid inlet of the filter tank 6 is installed at one end of the first drainage pipe 5. The interior of the first drainage pipe 5 is connected with the interior of the filter tank 6. A rotating cylinder 28 is provided inside the filter tank 6. The rotating cylinder 28 is arranged at the liquid inlet of the filter tank 6. Evenly distributed paddles 29 are fixedly connected to the outer surface of the rotating cylinder 28. A filter screen cylinder 30 is provided at the lower end of the rotating cylinder 28. A spiral scraper 31 is wound on the outer wall of the filter screen cylinder 30. The rotating cylinder 28 The upper end of the cavity cylinder 26 is rotatably connected to the cavity cylinder 26, and the second drainage pipe 7 is fixedly connected to one side of the cavity cylinder 26. The end of the second drainage pipe 7 away from the cavity cylinder 26 passes through the filter tank 6 and is connected to the drip irrigation pipe. The interior of the filter screen cylinder 30 is connected to the interior of the second drainage pipe 7 through the rotating cylinder 28, the cavity cylinder 26 and the second drainage pipe 7. The upper end of the cavity cylinder 26 is fixedly connected to the fixing column 27, and the upper end of the fixing column 27 is fixedly connected to the inner wall of the filter tank 6. The side of the spiral scraper 31 away from the filter screen cylinder 30 is fixedly connected to the support rod 32, and the end of the support rod 32 away from the spiral scraper 31 is fixedly connected to the inner wall of the filter tank 6.

[0042] By adopting the above technical scheme, when performing irrigation and fertilization, it is first necessary to inject fertilizer water into the mixing box 2, and the water supply pump 3 extracts water in the mixing box 2 through the first pumping pipe 4. The extracted water will flow into the first drainage pipe 5, and the fertilizer water in the first drainage pipe 5 will enter the filter tank 6. The liquid in the filter tank 6 will pass through the filter mesh cylinder 30 and be filtered. The fertilizer particle impurities in the fertilizer water will be filtered onto the outer surface of the filter mesh cylinder 30, and the filtered fertilizer water will enter the cavity cylinder 26 from the inside of the filter mesh cylinder 30, and finally enter the second drainage pipe 7 from the cavity cylinder 26, and flow into the drip irrigation pipe from the second drainage pipe 7. In this way, the problem of particle impurities blocking the drip irrigation nozzle can be solved, ensuring that each drip irrigation nozzle can fertilize and irrigate the field.

[0043] After the fertilizer water in the first drain pipe 5 enters the filter tank 6, the fertilizer water will impact the paddle 29, thereby driving the paddle 29 to rotate. The paddle 29 will drive the rotating cylinder 28 to rotate when rotating. The rotating cylinder 28 will drive the filter screen cylinder 30 to rotate when rotating. Because the spiral scraper 31 is spirally wound on the outside of the filter screen cylinder 30, the particulate impurities adsorbed on the surface of the filter screen cylinder 30 will be restricted by the spiral scraper 31 when the filter screen cylinder 30 rotates. The particulate impurities move along the lower spiral surface of the spiral scraper 31, and finally move to the lower end of the filter screen cylinder 30. The particulate impurities adsorbed on the surface of the filter screen cylinder 30 can be cleaned up in time by the rotation of the filter screen cylinder 30, which can avoid the blockage of the filter screen cylinder 30 and the problem of affecting fertilization and irrigation.

[0044] In some embodiments of the present invention, the purification component further includes a counterweight column 43, the lower end of the counterweight column 43 is fixedly connected to the lower end of the filter screen cylinder 30, the outer side surface of the counterweight column 43 is sleeved with a grinding cylinder 35, the inner wall of the grinding cylinder 35 and the outer side surface of the counterweight column 43 are both designed to be rough, and a space for grinding impurities is left between the inner wall of the grinding cylinder 35 and the outer side surface of the counterweight column 43, the outer wall of the grinding cylinder 35 is fixedly connected to a plurality of groups of first connecting columns 34, one end of the first connecting column 34 away from the grinding cylinder 35 is fixedly connected to the inner wall of the filter tank 6, and the upper end of the grinding cylinder 35 is fixedly connected to a conical cover 33;

[0045] The purification assembly also includes a base cylinder 38, which is arranged at the lower end of the grinding cylinder 35, and the upper end of the base cylinder 38 is symmetrically fixedly connected with a fan-shaped arc block 37, and the fan-shaped arc block 37 is connected to the edge of the base cylinder 38. The lower end of the grinding cylinder 35 is symmetrically fixedly connected with a rotating column 36, and the rotating column 36 can move along the upper end of the base cylinder 38 and the upper arc surface of the fan-shaped arc block 37. The lower end of the base cylinder 38 is fixedly connected with a second connecting column 39, and the end of the second connecting column 39 away from the base cylinder 38 is fixedly connected to the inner wall of the filter tank 6;

[0046] The upper end of the filter screen cylinder 30 is inserted into the lower end of the rotating cylinder 28, and a first prismatic sleeve 44 is provided inside the rotating cylinder 28, and a second prismatic sleeve 45 is provided inside the filter screen cylinder 30. Prismatic columns 47 are provided inside the first prismatic sleeve 44 and the second prismatic sleeve 45, and barrier disks 46 are fixedly connected to the upper and lower ends of the prismatic column 47. A third connecting column 49 is fixedly connected to the outer wall of the first prismatic sleeve 44, and one end of the third connecting column 49 away from the first prismatic sleeve 44 is fixedly connected to the inner wall of the rotating cylinder 28, and a fourth connecting column 48 is fixedly connected to the outer wall of the second prismatic sleeve 45, and one end of the fourth connecting column 48 away from the second prismatic sleeve 45 is fixedly connected to the inner wall of the filter screen cylinder 30.

[0047] By adopting the above technical solution, as the particulate impurities continue to accumulate at the lower end of the filter cylinder 30, the particulate impurities will enter between the grinding cylinder 35 and the counterweight column 43. When the filter cylinder 30 rotates, it will drive the counterweight column 43 to rotate together. When the counterweight column 43 rotates, it will drive the rotating column 36 to rotate together. When the rotating column 36 rotates, it will move along the arc surface of the fan-shaped arc block 37. When the rotating column 36 moves along the fan-shaped arc block 37, it will push the counterweight column 43 up and down. At the same time, the counterweight column 43 will also follow the filter cylinder 30 to rotate. Because the outer cylindrical surface of the counterweight column 43 and the inner wall of the grinding cylinder 35 are both rough in design, the counterweight column 43 will fully grind the particulate impurities between the grinding cylinder 35 and the counterweight column 43 when rotating and moving up and down, so that the undissolved fertilizer can be more crushed, so that the granular fertilizer can be dissolved in the fertilizer water, avoiding the waste of fertilizer during fertilization due to the undissolved fertilizer.

[0048] It should be noted that the prismatic column 47 is arranged in the first prismatic sleeve 44 and the second prismatic sleeve 45. When the rotating cylinder 28 rotates, the first prismatic sleeve 44 will be driven to rotate through the third connecting column 49. When the first prismatic sleeve 44 rotates, it will drive the prismatic column 47 to rotate. When the prismatic column 47 rotates, it will drive the second prismatic sleeve 45 to rotate. When the second prismatic sleeve 45 rotates, it will drive the filter screen cylinder 30 to rotate through the fourth connecting column 48. Because the prismatic column 47 is sleeved in the first prismatic sleeve 44 and the second prismatic sleeve 45, it is ensured that the filter screen cylinder 30 can also move up and down when it rotates.

[0049] In some embodiments of the present invention, the purification component also includes an elastic airbag 42, which is fixedly connected to the lower end of the counterweight column 43. A liquid outlet 41 is provided at the center of the lower end of the elastic airbag 42. A water outlet 40 is provided through the center of the upper surface of the base tube 38, and the water outlet 40 corresponds to the liquid outlet 41.

[0050] By adopting the above technical solution, it should be noted that when the counterweight column 43 does not squeeze the elastic airbag 42, part of the fertilizer water in the filter tank 6 enters the elastic airbag 42 through the water outlet hole 40 and the liquid outlet hole 41. When the counterweight column 43 moves downward, it will squeeze the elastic airbag 42, and the water in the elastic airbag 42 will be discharged from the water outlet hole 40 and the liquid outlet hole 41, and the water flow will impact the bottom of the filter tank 6. Some fertilizer particles that are not ground or fertilizer particles that are not fully ground will be lifted up by the impact of the water flow. The lifted granular impurities will be adsorbed onto the surface of the filter mesh cylinder 30 again with the water flow, and move downward along the spiral scraper 31 again, and enter between the counterweight column 43 and the grinding cylinder 35 for re-grinding, thereby further improving the grinding effect of the fertilizer particles.

[0051] In some embodiments of the present invention, a water pump 20 is installed on the support frame 1, a delivery pipe 22 is fixedly connected between the water outlet of the water pump 20 and the mixing box 2, a second water pumping pipe 21 is fixedly connected to the water inlet of the water pump 20, and the end of the second water pumping pipe 21 away from the water pump 20 is connected to a return pipe 17 and a third water pumping pipe 18, the third water pumping pipe 18 is used to extract water from the outside, and the return pipe 17 is connected to the end of the drip irrigation pipe away from the second drainage pipe 7;

[0052] The first drain pipe 5 is connected to a liquid extraction assembly, which includes a venturi tube 11, through which fertilizer water is extracted and injected into the mixing box 2;

[0053] A regulating component is installed on the pipelines of the first drainage pipe 5 and the third water pumping pipe 18. The regulating component is used to adjust the liquid absorption capacity of the venturi tube 11 according to the preset fertilization data. The regulating component includes a detection sensor 16 and a solenoid valve 10. The fertilizer water of irrigation is detected by the detection sensor 16, and the opening size of the solenoid valve 10 is adjusted based on the detection result. The solenoid valve 10 is installed on the throat pipe of the venturi tube 11;

[0054] The liquid extraction component also includes a first branch pipe 8, which is connected to the first drain pipe 5. There are multiple groups of venturi tubes 11, and the lower ends of the multiple groups of venturi tubes 11 are connected to the first branch pipe 8. The end of the venturi tube 11 away from the first branch pipe 8 is connected to the mixing box 2. The end of the solenoid valve 10 away from the venturi tube 11 is connected to the liquid extraction tube 9, and the end of the liquid extraction tube 9 away from the venturi tube 11 is connected to the fertilizer water tank 12.

[0055] By adopting the above technical solution, the third water pumping pipe 18 is connected to the external water, which can be river water, well water, etc. One end of the drip irrigation pipe is connected to the second drainage pipe 7, and the other end thereof is connected to the return pipe 17, so that the water in the drip irrigation pipe will flow back to the return pipe 17, and the water pumping operation is performed by the water pump 20. The liquid in the return pipe 17 and the water in the third water pumping pipe 18 will mix and flow into the second water pumping pipe 21, and then flow into the delivery pipe 22 through the water pump 20. The liquid in the delivery pipe 22 will finally flow into the mixing box 2, so that water is injected into the mixing box 2; the water supply pump 3 extracts the water in the mixing box 2 through the first water pumping pipe 4, and the extracted water will flow into the first drainage pipe 5. The first branch pipe 8 is connected to the first drainage pipe 5, so part of the water in the first drainage pipe 5 will flow into the first branch pipe 8, and the water in the first branch pipe 8 will flow into the venturi tube 11 along the pipeline, and the upper part of the venturi tube 11 will flow into the venturi tube 11. The end of the fertilizer tank 12 flows into the mixing box 2 again. When the water flows through the throat of the venturi tube 11, the pressure in the liquid extraction pipe 9 will be reduced. At this time, the liquid extraction pipe 9 will extract the liquid in the fertilizer water tank 12. The fertilizer water tank 12 is filled with some high-concentration fertilizer water and pH regulators such as some acidic solutions or alkaline solutions. The liquid in the fertilizer water tank 12 will flow into the venturi tube 11. The liquid in the fertilizer water tank 12 will finally flow into the mixing box 2 along the water flow inside the venturi tube 11, so that the fertilizer water, the regulator and the water are mixed in the mixing box 2. The mixed fertilizer water is finally extracted through the first pumping pipe 4, flows into the first drain pipe 5 along the first pumping pipe 4, and is finally discharged along the first drain pipe 5. The drainage end of the first drain pipe 5 can be connected to the drip irrigation pipe, which is laid in the field. The mixed fertilizer water will flow into the drip irrigation pipe and flow out from the drip irrigation nozzle, so as to realize fertilization and irrigation operations on the field.

[0056] In some embodiments of the present invention, the regulating component further includes a second branch pipe 13, the second branch pipe 13 is connected to the first branch pipe 8, one end of the second branch pipe 13 away from the first branch pipe 8 is connected to a multi-group branch pipe 14, and the detection sensor 16 is installed on the multi-group branch pipe 14;

[0057] One end of the multi-component branch pipe 14 away from the second branch pipe 13 is connected to a return pipe 15 , and one end of the return pipe 15 away from the second branch pipe 13 is connected to the mixing box 2 .

[0058] By adopting the above technical solution, because the second branch pipe 13 is interconnected with the first branch pipe 8, the liquid in the first branch pipe 8 will flow into the second branch pipe 13, and then flow into the shunt pipe 14 through the second branch pipe 13, and return to the reflux pipe 15 through the shunt pipe 14, and then be discharged into the mixing box 2 through the reflux pipe 15. The detection sensor 16 will detect the water-fertilizer concentration and pH value in the shunt pipe 14. If the detected water-fertilizer concentration and pH value are lower or higher than the preset value, the control component will adjust the opening size of the corresponding solenoid valve 10, and control the flow rate of the liquid inside the venturi tube 11 by adjusting the opening size of the solenoid valve 10, and then control the amount of liquid in the fertilizer water tank 12 sucked by the venturi tube 11 through the liquid extraction pipe 9, so as to realize the control of the fertilizer amount and the pH regulation of irrigation and fertilization, because different crops are adapted to different pH values, that is to say, when irrigating crops, the fertilizer amount and pH value can be accurately regulated according to the habits of the crops to save fertilizers.

[0059] In some embodiments of the present invention, the control component also includes an EC sensor 19, which is installed on the third water pumping pipe 18. The conductivity detected by the detection sensor 16 is subtracted from the conductivity detected by the EC sensor 19 to obtain a difference conductivity. The concentration value detected by each group of detection sensors 16 is calculated based on the difference conductivity, and then the opening and closing degree of the corresponding solenoid valve 10 is controlled based on the concentration value detected by each group of detection sensors 16.

[0060] By adopting the above technical scheme, it should be noted that the water conductivity in each region's water source is different. The working principle of the EC sensor 19 is to measure the EC value of the conductivity of the solution. The conductivity is used to reflect the total concentration of soluble salts or ions in the solution. Nitrogen fertilizer, phosphorus fertilizer, and potassium fertilizer dissolved in water will increase the conductivity of the solution. The multiple groups of detection sensors 16 include fertilizer detection sensors. The fertilizer detection sensor indirectly measures the concentration of fertilizer water by measuring the conductivity in the fertilizer water. The present invention subtracts the conductivity detected by the EC sensor 19 from the conductivity detected by the fertilizer detection sensor to obtain the difference conductivity. The concentration of the fertilizer in the fertilizer water calculated according to the difference conductivity is the actual concentration of the fertilizer water. In this way, the detection result is more accurate. Through more accurate detection, more accurate control of the amount of fertilizer applied can be achieved, which greatly saves the amount of fertilizer used and reduces the fertilizer cost of growers.

[0061] In some embodiments of the present invention, a first liquid level sensor 24 and a second liquid level sensor 25 are installed on the outer wall of the mixing box 2 , and the second liquid level sensor 25 is located above the first liquid level sensor 24 .

[0062] By adopting the above technical solution, the first liquid sensor 24 and the second liquid sensor 25 are used to detect the water level in the mixing box 2. Through the data detected by the first liquid sensor 24 and the second liquid sensor 25, the power of the water supply pump 3 and the water pump 20 are adjusted in time to avoid the problem of too high or too low water level in the mixing box 2.

[0063] The above are only preferred specific implementations of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and improved concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A water-fertilizer integrated machine, comprising a support frame (1) and a mixing box (2), wherein a water supply pump (3) is installed on the support frame (1), a first water pumping pipe (4) is connected between the water inlet of the water supply pump (3) and the mixing box (2), and a first drainage pipe (5) is connected at the water outlet of the water supply pump (3); Features: A purification component is provided at one end of the first drainage pipe (5) away from the water supply pump (3), and the purification component is used to prevent the dripping port of the drip irrigation pipe from being blocked. The purification component comprises a filter tank (6), and the liquid inlet of the filter tank (6) is installed at one end of the first drainage pipe (5). The interior of the first drainage pipe (5) and the interior of the filter tank (6) are connected to each other. A rotating cylinder (28) is provided inside the filter tank (6), and the rotating cylinder (28) is arranged at the liquid inlet of the filter tank (6). Evenly distributed paddles (29) are fixedly connected to the outer surface of the rotating cylinder (28). A filter screen cylinder (30) is provided at the lower end of the rotating cylinder (28). A spiral scraper (31) is wound around the outer wall of the filter screen cylinder (30). When the filter screen cylinder (30) rotates, the particle impurities adsorbed on the surface of the filter screen cylinder (30) are limited by the spiral scraper (31). The granular impurities move along the lower spiral surface of the spiral scraper (31); the upper end of the rotating cylinder (28) is rotatably connected to the cavity cylinder (26); one side of the cavity cylinder (26) is fixedly connected to the second drainage pipe (7); one end of the second drainage pipe (7) away from the cavity cylinder (26) passes through the filter tank (6) and is connected to the drip irrigation pipe; the interior of the filter screen cylinder (30) is interconnected with the interior of the second drainage pipe (7) through the rotating cylinder (28), the cavity cylinder (26), and the second drainage pipe (7); the upper end of the cavity cylinder (26) is fixedly connected to the fixing column (27); the upper end of the fixing column (27) is fixedly connected to the inner wall of the filter tank (6); the side of the spiral scraper (31) away from the filter screen cylinder (30) is fixedly connected to the support rod (32); one end of the support rod (32) away from the spiral scraper (31) is fixedly connected to the inner wall of the filter tank (6); The purification component further comprises a counterweight column (43), the lower end of the counterweight column (43) being fixedly connected to the lower end of the filter screen cylinder (30), the outer side surface of the counterweight column (43) being sleeved with a grinding cylinder (35), and a space for grinding impurities is reserved between the inner wall of the grinding cylinder (35) and the outer side surface of the counterweight column (43); The purification assembly further comprises a base cylinder (38), wherein the base cylinder (38) is arranged at the lower end of the grinding cylinder (35), and the upper end of the base cylinder (38) is symmetrically fixedly connected to a fan-shaped arc block (37), and the fan-shaped arc block (37) is connected to the edge of the base cylinder (38). The lower end of the grinding cylinder (35) is symmetrically fixedly connected to a rotating column (36), and the rotating column (36) can move along the upper end of the base cylinder (38) and the upper arc surface of the fan-shaped arc block (37). When the rotating column (36) moves along the fan-shaped arc block (37), it pushes the counterweight column (43) to move up and down.

2. The integrated water and fertilizer application device according to claim 1, characterized in that: The inner wall of the grinding cylinder (35) and the outer side surface of the counterweight column (43) are both designed to be rough. The outer wall of the grinding cylinder (35) is fixedly connected to a plurality of groups of first connecting columns (34). One end of the first connecting column (34) away from the grinding cylinder (35) is fixedly connected to the inner wall of the filter tank (6). The upper end of the grinding cylinder (35) is fixedly connected to a conical cover (33).

3. The integrated water and fertilizer application device according to claim 2 is characterized in that: A second connecting column (39) is fixedly connected to the lower end of the base tube (38), and one end of the second connecting column (39) away from the base tube (38) is fixedly connected to the inner wall of the filter tank (6); The upper end of the filter screen cylinder (30) is plugged into the lower end of the rotating cylinder (28); a first prismatic sleeve (44) is provided inside the rotating cylinder (28); a second prismatic sleeve (45) is provided inside the filter screen cylinder (30); prismatic columns (47) are provided inside the first prismatic sleeve (44) and the second prismatic sleeve (45); upper and lower ends of the prismatic columns (47) are fixedly connected to blocking disks (46); a third connecting column (49) is fixedly connected to the outer wall of the first prismatic sleeve (44); an end of the third connecting column (49) away from the first prismatic sleeve (44) is fixedly connected to the inner wall of the rotating cylinder (28); a fourth connecting column (48) is fixedly connected to the outer wall of the second prismatic sleeve (45); an end of the fourth connecting column (48) away from the second prismatic sleeve (45) is fixedly connected to the inner wall of the filter screen cylinder (30).

4. The integrated water and fertilizer application device according to claim 3 is characterized in that: The purification component further comprises an elastic airbag (42), wherein the elastic airbag (42) is fixedly connected to the lower end of the counterweight column (43), a liquid outlet hole (41) is provided at the center of the lower end of the elastic airbag (42), and a water outlet hole (40) is provided through the center of the upper surface of the base tube (38), and the water outlet hole (40) corresponds to the liquid outlet hole (41).

5. The integrated water and fertilizer application device according to claim 1, characterized in that: A water pump (20) is installed on the support frame (1); a delivery pipe (22) is fixedly connected between the water outlet of the water pump (20) and the mixing box (2); a second water pump (21) is fixedly connected to the water inlet of the water pump (20); an end of the second water pump (21) away from the water pump (20) is connected to a liquid return pipe (17) and a third water pump (18); the third water pump (18) is used to extract water from an external source; the liquid return pipe (17) is connected to an end of the drip irrigation pipe away from the second drainage pipe (7); The first drainage pipe (5) is connected to a liquid extraction assembly, the liquid extraction assembly comprising a venturi tube (11), and fertilizer water is extracted through the venturi tube (11) and injected into the mixing box (2); A regulating component is installed on the pipelines of the first drainage pipe (5) and the third water suction pipe (18), and the regulating component is used to adjust the liquid suction capacity of the Venturi tube (11) according to preset fertilization data. The regulating component includes a detection sensor (16) and a solenoid valve (10). The fertile water for irrigation is detected by the detection sensor (16), and the opening size of the solenoid valve (10) is regulated based on the detection result. The solenoid valve (10) is installed on the throat pipe of the Venturi tube (11).

6. The integrated water and fertilizer application device according to claim 5, characterized in that: The liquid extraction component further comprises a first branch pipe (8), the first branch pipe (8) being connected to the first drain pipe (5), the venturi tubes (11) being provided in a plurality of groups, the lower ends of the plurality of venturi tubes (11) being connected to the first branch pipe (8), the end of the venturi tube (11) being away from the first branch pipe (8) being connected to the mixing box (2), the end of the solenoid valve (10) being away from the venturi tube (11) being connected to a liquid extraction pipe (9), and the end of the liquid extraction pipe (9) being away from the venturi tube (11) being connected to a fertilizer water tank (12).

7. The integrated water and fertilizer application device according to claim 6, characterized in that: The regulating component further comprises a second branch pipe (13), wherein the second branch pipe (13) is connected to the first branch pipe (8), and one end of the second branch pipe (13) away from the first branch pipe (8) is connected to a plurality of branch pipes (14), and the detection sensor (16) is mounted on the plurality of branch pipes (14).

8. The integrated water and fertilizer application device according to claim 7, characterized in that: The control component further comprises an EC sensor (19), wherein the EC sensor (19) is mounted on the third water pumping pipe (18), and a conductivity detected by the EC sensor (19) is subtracted from the conductivity detected by the detection sensor (16) to obtain a differential conductivity, and the concentration value detected by each group of detection sensors (16) is calculated based on the differential conductivity, and then the opening and closing degree of the corresponding solenoid valve (10) is controlled based on the concentration value detected by each group of detection sensors (16).

9. The integrated water and fertilizer application device according to claim 8, characterized in that: One end of the plurality of groups of branch pipes (14) away from the second branch pipe (13) is connected to a return pipe (15), and one end of the return pipe (15) away from the second branch pipe (13) is connected to the mixing box (2).

10. The integrated water and fertilizer application device according to claim 5, characterized in that: A first liquid sensor (24) and a second liquid sensor (25) are mounted on the outer wall of the mixing box (2), and the second liquid sensor (25) is located above the first liquid sensor (24).

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