Intelligent water and fertilizer all-in-one machine for crop planting

Abstract

The utility model discloses an intelligent water and fertilizer all-in-one machine for crop planting, which belongs to the technical field of water and fertilizer all-in-one machines and comprises a water and fertilizer all-in-one machine assembly, the free end of a discharge pipe is hermetically connected with a detachable filter pipeline, and the free end of the detachable filter pipeline is hermetically connected with a flow monitoring pipeline. An on-line flow monitoring meter is mounted on the peripheral side of the flow monitoring pipeline, and a first filter screen and a second filter screen of which the aperture sizes decrease progressively are symmetrically and detachably arranged in an inner cavity of the discharging pipe; the self-cleaning anti-blocking assembly comprises a rotating shaft piece rotationally installed between the first filter screen and the second filter screen, two cleaning scraping rods symmetrically installed at the two ends of the rotating shaft piece correspondingly, and cleaning balance weight balls hoisted between the two adjacent cleaning scraping rods through elastic belts. A driving assembly for driving the rotating shaft piece to rotate is arranged on the outer wall of the detachable filtering pipeline. Impurities on the surface of the filter screen can be automatically cleaned, and the intelligent operation effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of integrated water and fertilizer machines, in particular to an intelligent integrated water and fertilizer machine for crop planting. Background Technique

[0002] In modern agricultural production, the technology of integrated water and fertilizer machines has been widely applied. The traditional integrated water and fertilizer system usually includes components such as a water storage tank, a fertilizer tank, a mixing tank, a conveying pipeline, and a filtering structure in the conveying pipeline. Filtering the water and fertilizer solution through a filter screen can not only ensure the normal operation of the irrigation system (reduce the wear of impurities on irrigation equipment such as water pumps, valves, pipelines, etc.) but also improve the utilization efficiency of water and fertilizer resources, and ultimately achieve the purpose of increasing crop yield and quality. This is crucial for modern agriculture, especially in the context of increasingly scarce water resources. Efficient water and fertilizer management is of great significance for sustainable development.

[0003] However, the existing integrated water and fertilizer machines have the following problems in practical applications: During the conveying process of the traditional integrated water and fertilizer machine, the filter screen is often blocked by impurities in the water or incompletely dissolved fertilizer particles. Due to the lack of an automatic cleaning structure for the filter screen, and manual disassembly and cleaning taking time, the general approach is to make do with it. However, after long-term use, the filter screen is prone to accumulating impurities. If not cleaned in time, it will cause a reduction in flow rate, affect the uniform distribution of water and fertilizer, and even lead to the system being unable to work properly, resulting in equipment damage. Content of the Utility Model

[0004] The purpose of the utility model is to provide an intelligent integrated water and fertilizer machine for crop planting to solve the problems raised in the background technique.

[0005] To achieve the above object, the utility model provides the following technical solutions: An intelligent water and fertilizer integrated machine for crop planting, comprising a water and fertilizer integrated machine assembly. The water and fertilizer integrated machine assembly includes a mounting support, a water storage tank, a fertilizer tank, a mixing tank, a U-shaped bracket respectively installed on the top surface of the mounting support, and different connecting pipe fittings installed on the U-shaped bracket. A discharge pipe is connected behind the mixing tank, and a detachable filter pipe is hermetically connected to the free end of the discharge pipe. A flow monitoring pipe is hermetically connected to the free end of the detachable filter pipe. An on-line flow monitor is installed on the periphery of the flow monitoring pipe. In the inner cavity of the discharge pipe, a first filter screen and a second filter screen with decreasing aperture sizes are symmetrically and detachably arranged. A self-cleaning anti-blocking component is arranged between the first filter screen and the second filter screen. The self-cleaning anti-blocking component includes a rotating shaft member rotatably installed between the first filter screen and the second filter screen, two cleaning scraping rods symmetrically installed at both ends of the rotating shaft member respectively, and a cleaning counterweight ball suspended between adjacent two cleaning scraping rods by an elastic band. A driving component for driving the rotating shaft member to rotate is arranged on the outer wall of the detachable filter pipe. When the rotating shaft member rotates, the cleaning scraping rods are driven to scrape off the blocking impurities on the surfaces of the first filter screen and the second filter screen, and the cleaning counterweight ball is swung to impact on the first filter screen and the second filter screen when the elastic band is used in cooperation.

[0006] Preferably in this solution, a detachable filter inner tube is in interference fit with the inside of the detachable filter pipe. The first filter screen and the second filter screen are both fixed to both ends in the detachable filter inner tube. Through holes are formed on the periphery of the detachable filter inner tube and towards the motor seat side.

[0007] Preferably in this solution, a second bearing is in interference fit with the through holes. A connecting shaft member is in interference fit with the inner ring of the second bearing. The connecting shaft member extends through the through holes into the inner cavity of the detachable filter inner tube.

[0008] Preferably in this solution, a transmission sealing box is hinged at the middle position of the rotating shaft member. A fourth bearing is embedded on the top surface of the transmission sealing box. A transmission shaft is in interference fit with the inner ring of the fourth bearing. The transmission shaft is connected to the connecting shaft member.

[0009] Preferably in this solution, a clamping convex head is integrally connected to the top end of the transmission shaft. A clamping groove for clamping the clamping convex head is integrally formed at the bottom end of the connecting shaft member.

[0010] Preferably in this solution, a first bevel gear is fixedly installed at one end of the transmission shaft extending into the inner cavity of the transmission sealing box. A second bevel gear is fixedly sleeved on the periphery of the rotating shaft member in the inner cavity of the transmission sealing box. The first bevel gear and the second bevel gear are meshed and connected together.

[0011] Preferably, fixed support rods are symmetrically welded to the outer walls on both sides of the drive sealing box. Threaded counterbores are symmetrically formed on the circumferential side of the detachable filter inner tube and facing one side of the fixed support rods. Sealing rubber rings are provided in the threaded counterbores. Locking bolts are threadedly connected in the threaded counterbores. The locking bolts pass through the threaded counterbores and are connected to the fixed support rods together, for fixing the position of the drive sealing box in the detachable filter inner tube. When the rotating shaft member rotates, the drive sealing box remains stable without moving.

[0012] Preferably, a motor base is installed on the circumferential side of the detachable filter pipe. The drive assembly includes a servo motor installed on the top surface of the motor base. A through hole is longitudinally formed on the top surface of the motor base, and a first bearing is press-fitted in the top of the through hole.

[0013] Preferably, the output shaft of the servo motor is press-fitted with the inner ring of the first bearing. The top end of the coupling member away from the detachable filter inner tube extends into the through hole of the motor base and is connected to the output shaft of the servo motor.

[0014] Preferably, the electric control cabinet has an acquisition module, a communication module, and a control module;

[0015] The acquisition module includes a sensor responsible for online monitoring of flow data in the online flow monitor;

[0016] The communication module is a Wi-Fi network;

[0017] The control module includes a PLC. The PLC receives the data signal of the decreasing flow rate transmitted by the acquisition module through the Wi-Fi network and controls the opening of the servo motor to operate.

[0018] Compared with the prior art, the technical effects and advantages of the present utility model:

[0019] This intelligent water and fertilizer integrator for crop planting,

[0020] Through the design of the self-cleaning anti-blocking component, especially the cooperation of the rotating shaft member, the cleaning counterweight ball, and the elastic band, the blockages on the filter screen can be effectively cleaned, ensuring the unobstructed water and fertilizer delivery system. Driven by the rotating shaft member, the cleaning scraping rod can scrape off the impurities on the surface of the filter screen, while the cleaning counterweight ball can penetrate into the gaps and, through the combined action of centrifugal force and the elastic band, thoroughly clean the positions that are difficult to reach.

[0021] Through the automatic cleaning function, the possibility of filter screen blockage is reduced, the system failure caused by blockage is avoided, the reliability of the system is improved, and the automatic cleaning function reduces the wear of the equipment by impurities and prolongs the service life of the water and fertilizer integrator.

[0022] The water and fertilizer flow is monitored in real time through an online flow monitor, and the data is transmitted to the PLC in the electric control cabinet through the Wi-Fi network, realizing intelligent automation control and reducing the need for manual monitoring. When the flow monitor detects an abnormal decrease in flow, the system automatically starts the servo motor, and the self-cleaning operation can be completed without manual intervention, improving the intelligent operation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 is a schematic structural diagram of the present invention;

[0025] Figure 2 is a schematic structural diagram of the disassembled state of the detachable filter inner tube of the present invention;

[0026] Figure 3 is a schematic structural diagram of the disassembled state of the fixing ring member of the present invention;

[0027] Figure 4 is a schematic installation structure diagram of the transmission shaft of the present invention;

[0028] Figure 5 For the present invention Figure 4 is an enlarged structural diagram of part A in;

[0029] Figure 6 is a schematic meshing connection structure diagram of the first bevel gear and the second bevel gear of the present invention;

[0030] Figure 7 is an electrical connection block diagram of the present invention.

[0031] Description of the reference numerals:

[0032] In the figure: 1. Integrated water and fertilizer machine assembly; 2. Installation support; 3. Electric control cabinet; 4. Water storage tank; 5. Fertilizer tank; 6. Mixing tank; 7. U-shaped bracket; 8. Discharge pipe; 9. Detachable filter pipeline; 10. Flow monitoring pipeline; 11. Online flow monitor; 12. Motor base; 13. Servo motor; 14. First bearing; 15. Detachable filter inner pipe; 16. First filter screen; 17. Through hole; 18. Second bearing; 19. Coupling piece; 20. Threaded counterbore; 21. Sealing rubber ring; 22. Locking bolt; 23. Fixed ring piece; 24. Rotating shaft piece; 25. Transmission seal box; 26. Transmission shaft; 27. Clamping convex head; 28. Clamping groove; 29. Third bearing; 30. Fourth bearing; 31. Fixed support rod; 32. Fifth bearing; 33. Connecting ear plate; 34. Cleaning scraper rod; 35. Cleaning counterweight ball; 36. Elastic band; 37. Self-cleaning anti-clogging component; 38. First bevel gear; 39. Second bevel gear; 40. Second filter screen. Detailed implementation mode

[0033] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some well-known technical features in the art are not described.

[0034] Unless otherwise defined, the directions such as up, down, left, right, front, back, inside and outside involved in this article are based on the up, down, left, right, front, back, inside and outside in the figure shown by the present invention, and are hereby explained together.

[0035] This embodiment provides an intelligent water and fertilizer integrated machine for crop planting as shown in Figures 1 to 7 the figure, which includes an integrated water and fertilizer machine assembly 1. The integrated water and fertilizer machine assembly 1 includes an installation support 2, a water storage tank 4, a fertilizer tank 5, a mixing tank 6, a U-shaped bracket 7 respectively installed on the top surface of the installation support 2, and different connecting pipe fittings installed on the U-shaped bracket 7. The electric control cabinet 3 contains the core components of the control system, such as a collection module, a communication module, and a control module, etc. It receives data from the online flow monitor 11 through the Wi-Fi network and controls the working state of the servo motor 13 according to the flow change. The water storage tank 4 stores the water source for irrigation to ensure continuous water supply. The fertilizer tank 5 stores the fertilizer solution and supplies it to the crops after being mixed with the water source in the water storage tank 4. The mixing tank 6 serves as a container for water and fertilizer mixing to ensure full mixing of water and fertilizer and achieve the effect of uniform application.

[0036] In this embodiment, a discharge pipe 8 is connected behind the mixing tank 6. The free end of the discharge pipe 8 is hermetically connected to a detachable filter pipe 9. The discharge pipe 8 connects the mixing tank 6 and the detachable filter pipe 9 to convey the mixed water and fertilizer. The detachable filter pipe 9 plays a role in filtering impurities during the conveyance of water and fertilizer, preventing the clogging of the sprinkler irrigation system, and is designed to be detachable for convenient maintenance and cleaning. The free end of the detachable filter pipe 9 is hermetically connected to a flow monitoring pipe 10. An on-line flow monitor 11 is installed on the periphery of the flow monitoring pipe 10. The flow monitoring pipe 10 cooperates with the on-line flow monitor 11 to monitor the flow of water and fertilizer and timely feedback to the electric control cabinet 3 to adjust the working state of the system. The on-line flow monitor 11 monitors the flow of water and fertilizer flowing through the flow monitoring pipe 10 in real time and transmits the data to the PLC in the electric control cabinet 3. When the detected flow abnormally decreases, the servo motor 13 is triggered to start the self-cleaning operation. In the inner cavity of the discharge pipe 8, a first filter screen 16 and a second filter screen 40 with gradually decreasing pore sizes are symmetrically and detachably arranged. The double-layer filtering design of the first filter screen 16 and the second filter screen 40 effectively blocks larger particulate matter from entering the detachable filter pipe and prevents the system from being clogged. At the same time, the pore sizes of the first filter screen 16 and the second filter screen 40 gradually decrease to meet the filtration of impurities of different sizes.

[0037] In this embodiment, a self-cleaning anti-clogging component 37 is arranged between the first filter screen 16 and the second filter screen 40. The self-cleaning anti-clogging component 37 includes a rotating shaft member 24 rotatably installed between the first filter screen 16 and the second filter screen 40, two cleaning scraping rods 34 symmetrically installed at both ends of the rotating shaft member 24 respectively, and a cleaning counterweight ball 35 suspended between two adjacent cleaning scraping rods 34 by an elastic band 36. A driving component for driving the rotating shaft member 24 to rotate is arranged on the outer wall of the detachable filter pipe 9. When the rotating shaft member 24 rotates, it drives the cleaning scraping rods 34 to scrape off the clogging impurities on the surfaces of the first filter screen 16 and the second filter screen 40, and when the elastic band 36 is used in cooperation, it swings the cleaning counterweight ball 35 to impact on the first filter screen 16 and the second filter screen 40. When the cleaning counterweight ball 35 and the elastic band 36 rotate with the rotating shaft member 24, the cleaning counterweight ball 35 impacts the first filter screen 16 and the second filter screen 40 by using the centrifugal force to strengthen the cleaning effect.

[0038] In this embodiment, the cleaning counterweight ball 35 is connected to the cleaning scraping rods 34 at both ends of the rotating shaft member 24 through an elastic band 36. In the static state, the cleaning counterweight ball 35 is affected by gravity and hangs down naturally, without exerting pressure on the first filter screen 16 and the second filter screen 40. When the servo motor 13 is started and drives the rotating shaft member 24 to rotate through a series of transmission structures, the cleaning counterweight ball 35 rotates together with the rotating shaft member 24. When the initial rotation speed is relatively slow, the cleaning counterweight ball 35 is still mainly affected by gravity due to inertia. However, as the speed gradually increases, the centrifugal force begins to appear. When the rotating shaft member 24 reaches the high-speed rotation state, the centrifugal force exceeds the influence of gravity, causing the cleaning counterweight ball 35 to be thrown outwards. Since the cleaning counterweight ball 35 is connected to the cleaning scraping rods 34 at both ends of the rotating shaft member 24 through the elastic band 36, when the cleaning counterweight ball 35 is thrown out, the elastic band 36 will be stretched. The stretched elastic band 36 provides an additional elastic force to the cleaning counterweight ball 35, making it more firmly contact the surfaces of the first filter screen 16 and the second filter screen 40 under the action of the centrifugal force, and generating a greater impact force during the contact process. Under the combined action of the centrifugal force and the elastic band 36, the cleaning counterweight ball 35 continuously impacts the surfaces of the first filter screen 16 and the second filter screen 40. This impact helps to shake off the impurities and lumps adhering to the first filter screen 16 and the second filter screen 40. At the same time, as the rotating shaft member 24 rotates, the cleaning scraping rods 34 also scrape the surfaces of the first filter screen 16 and the second filter screen 40, assisting the cleaning work of the cleaning counterweight ball 35. The combined use of the cleaning counterweight ball 35 and the cleaning scraping rods 34 ensures the comprehensive cleaning of the surfaces of the first filter screen 16 and the second filter screen 40. When the servo motor 13 is turned off and the rotating shaft member 24 decelerates until it stops, the cleaning counterweight ball 35 loses the support of the centrifugal force and gradually returns to the state at rest. During this process, the elastic band 36 also gradually relaxes and returns to the initial state.

[0039] In this embodiment, a detachable filter inner tube 15 is in interference fit inside the detachable filter pipe 9. The first filter screen 16 and the second filter screen 40 are both fixed to both ends in the detachable filter inner tube 15. A through hole 17 is provided on the circumferential side of the detachable filter inner tube 15 and facing the motor base 12.

[0040] In this embodiment, a second bearing 18 is in interference fit in the through hole 17. A coupling member 19 is in interference fit in the inner ring of the second bearing 18. The coupling member 19 passes through the through hole 17 and extends into the inner cavity of the detachable filter inner tube 15.

[0041] In this embodiment, a drive seal box 25 is hinged at the middle position of the rotating shaft member 24. A fourth bearing 30 is embedded in the top surface of the drive seal box 25. A drive shaft 26 is press-fitted in the inner ring of the fourth bearing 30, and the drive shaft 26 is connected to the coupling member 19. The coupling member 19 connects the output shaft of the servo motor 13 and the drive shaft 26 to transmit torque. Third bearings 29 are fixedly embedded in the outer walls on both sides of the drive seal box 25. The inner rings of the two third bearings 29 are press-fitted with the rotating shaft member 24 of the transverse drive seal box 25, so that the rotating shaft member 24 can rotate in the drive seal box 25. Both ends of the rotating shaft member 24 are respectively connected to the first filter screen 16 and the second filter screen 40 through fifth bearings 32. Fixing ring members 23 are connected to the peripheries of the first filter screen 16 and the second filter screen 40. The fixing ring members 23 are embedded into the detachable filter inner tube 15. Connecting ear plates 33 are symmetrically welded to the opposite sides of the two fixing ring members 23. The connecting ear plates 33 are connected to the detachable filter inner tube 15 through bolts, so as to fix the fixing ring members 23, and thus fix the first filter screen 16 and the second filter screen 40. When it is necessary to disassemble the first filter screen 16 and the second filter screen 40 from the detachable filter inner tube 15, it is necessary to first loosen the bolts on the connecting ear plates 33 and pull out the first filter screen 16 and the second filter screen 40 from the detachable filter inner tube 15, which is convenient for replacing or cleaning the filter screen.

[0042] In this embodiment, a clamping convex head 27 is integrally connected to the top end of the drive shaft 26, and a clamping groove 28 for clamping the clamping convex head 27 is integrally formed at the bottom end of the coupling member 19.

[0043] In this embodiment, a first bevel gear 38 is fixedly installed at one end of the drive shaft 26 extending into the inner cavity of the drive seal box 25. A second bevel gear 39 is fixedly sleeved on the periphery of the rotating shaft member 24 in the inner cavity of the drive seal box 25. The first bevel gear 38 and the second bevel gear 39 are meshed and connected together.

[0044] In this embodiment, fixing support rods 31 are symmetrically welded to the outer walls on both sides of the drive seal box 25. Threaded counterbores 20 are symmetrically formed on the periphery of the detachable filter inner tube 15 and on the side facing the fixing support rods 31. Sealing rubber rings 21 are padded in the threaded counterbores 20. Locking bolts 22 are threadedly connected in the threaded counterbores 20. The locking bolts 22 pass through the threaded counterbores 20 and are connected to the fixing support rods 31 together, so as to fix the position of the drive seal box 25 in the detachable filter inner tube 15. When the rotating shaft member 24 rotates, the drive seal box 25 remains stable. The threaded counterbores 20, the sealing rubber rings 21, and the locking bolts 22 act together at the connection between the fixing support rods 31 and the detachable filter inner tube 15 to ensure the sealing performance and facilitate disassembly and assembly.

[0045] In this embodiment, a motor base 12 is installed on the peripheral side of the detachable filter pipe 9. The driving assembly includes a servo motor 13 installed on the top surface of the motor base 12. A through hole is longitudinally formed in the top surface of the motor base 12, and a first bearing 14 is in interference fit at the top of the through hole. The servo motor 13 serves as a driving source. When the on-line flow monitor 11 detects a decrease in flow rate, the PLC in the electric control cabinet 3 controls the start of the servo motor 13, driving the coupling member 19 to rotate, and further driving the self-cleaning anti-blocking assembly 37 to work.

[0046] In this embodiment, the output shaft of the servo motor 13 is in interference fit with the inner ring of the first bearing 14. The top end of the coupling member 19 away from the detachable filter inner pipe 15 extends into the through hole of the motor base 12 and is connected to the output shaft of the servo motor 13, so that the output shaft of the servo motor 13 drives the coupling member 19 to rotate. The coupling member 19 drives the transmission shaft 26 to rotate in the second bearing 18, and the transmission shaft 26 drives the first bevel gear 38 to rotate in the fourth bearing 30. The first bevel gear 38 is meshed with the second bevel gear 39 to rotate, and the second bevel gear 39 drives the rotating shaft member 24 to rotate. When the rotating shaft member 24 rotates, it drives the cleaning scraper 34 to scrape the impurities that are blocked, not evenly mixed, and caked on the surfaces of the first filter screen 16 and the second filter screen 40, and the impurities fall into the inner cavity of the detachable filter inner pipe 15. When centralized cleaning is required, after removing the first filter screen 16 and the second filter screen 40, these fallen impurities are poured out, so that the surfaces of the first filter screen 16 and the second filter screen 40 can be self-cleaned and anti-blocked.

[0047] In this embodiment, the electric control cabinet 3 is provided with an acquisition module, a communication module, and a control module;

[0048] The acquisition module includes a sensor in the on-line flow monitor 11 responsible for on-line monitoring of flow data;

[0049] The communication module is a Wi-Fi network;

[0050] The control module includes a PLC. The PLC receives the data signal of the decreasing flow rate transmitted by the acquisition module through the Wi-Fi network and controls the opening of the servo motor 13 to operate.

[0051] In this embodiment, the PLC receives the flow data signal from the online flow monitor 11. When the PLC monitors that the flow rate is lower than the preset threshold, the PLC records the current flow data. The PLC compares the current flow rate with the preset normal flow rate threshold. If it is lower than this threshold, it is considered abnormal. If the flow rate continuously exceeds 10 s (the time can be adjusted according to the actual application scenario) and is lower than the set value, it is considered that the filter screen is blocked. The PLC sends a start command to the servo motor 13 through the Wi-Fi network, and the servo motor 13 starts to operate, driving the self-cleaning anti-blocking component 37 to clean the first filter screen 16 and the second filter screen 40. The PLC continues to monitor the flow data. When the PLC receives the signal that the flow rate has returned to normal, the PLC sends a stop command to the servo motor 13 through the Wi-Fi network to control the servo motor 13 to stop working.

[0052] Working principle:

[0053] For the intelligent water and fertilizer integrated machine for crop planting, the water and fertilizer integrated machine assembly 1 is installed and ready. Appropriate amounts of water and fertilizer are added to the water storage tank 4 and the fertilizer tank 5 respectively. Each component such as the installation support 2, the electric control cabinet 3, the mixing tank 6, the U-shaped bracket 7, etc. are correctly assembled and fixed. The online flow monitor 11 is in a standby state, and the servo motor 13 is not started.

[0054] The PLC in the electric control cabinet 3 starts the water pump to pump the water in the water storage tank 4 into the mixing tank 6. At the same time, the fertilizer solution in the fertilizer tank 5 is also pumped into the mixing tank 6. During this process, the two are fully mixed in the mixing tank 6. The mixed water and fertilizer solution enters the detachable filter pipeline 9 through the discharge pipe 8. The first filter screen 16 and the second filter screen 40 have a double-layer filter design, effectively blocking larger particulate matter from entering the detachable filter pipeline to prevent system blockage, and then reaching the crop field through the flow monitoring pipeline 10. The online flow monitor 11 real-time monitors the water and fertilizer flow rate through the flow monitoring pipeline 10 and sends the data to the PLC in the electric control cabinet 3.

[0055] When the online flow monitor 11 detects that the flow rate is lower than the set threshold, the first filter screen 16 and the second filter screen 40 inside the detachable filter pipeline 9 are blocked. After the PLC receives the signal from the online flow monitor 11, it sends a start command to the servo motor 13 through the Wi-Fi network. The servo motor 13 starts to operate, transmits the power to the coupling member 19 through the first bearing 14. The coupling member 19 passes through the second bearing 18 and drives the transmission shaft 26 to rotate. The first bevel gear 38 at the end of the transmission shaft 26 meshes with the second bevel gear 39, causing the rotating shaft member 24 to rotate. As the rotating shaft member 24 rotates, the cleaning scraping rods 34 installed at both ends of it will scrape the impurities on the first filter screen 16 and the second filter screen 40.

[0056] The cleaning counterweight ball 35 connected by the elastic band 36 generates centrifugal force when the rotating shaft member 24 rotates, hitting the first filter screen 16 and the second filter screen 40 to further clean the screen surface. The impurities cleaned off fall into the interior of the detachable filter inner tube 15. Subsequently, by removing the fixing ring member 23 and the locking bolts 22, the first filter screen 16 and the second filter screen 40 can be withdrawn to centrally clean the impurities inside the detachable filter inner tube 15.

[0057] After the self-cleaning process, the flow rate returns to normal, and the PLC controls the servo motor 13 to stop working. The system continues to operate according to the set program to provide continuous water and fertilizer supply for the crops.

[0058] It should be noted that in this text, relational terms such as "one" and "two" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0059] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent water and fertilizer integrated machine for crop planting, comprising a water and fertilizer integrated machine assembly (1), characterized in that: The integrated water and fertilizer machine assembly (1) includes a mounting support (2), an electric control cabinet (3), a water storage tank (4), a fertilizer tank (5), a mixing tank (6), a U-shaped bracket (7) respectively installed on the top surface of the mounting support (2), and different connecting pipe fittings installed on the U-shaped bracket (7); A discharge pipe (8) is connected behind the mixing tank (6), a detachable filter pipe (9) is hermetically connected to the free end of the discharge pipe (8), a flow monitoring pipe (10) is hermetically connected to the free end of the detachable filter pipe (9), an on-line flow monitor (11) is installed on the periphery of the flow monitoring pipe (10), and a first filter screen (16) and a second filter screen (40) with gradually decreasing pore sizes are symmetrically and detachably arranged in the inner cavity of the discharge pipe (8), and a self-cleaning anti-blocking component (37) is arranged between the first filter screen (16) and the second filter screen (40); The self-cleaning anti-blocking component (37) includes a rotating shaft member (24) rotatably installed between the first filter screen (16) and the second filter screen (40), two cleaning scraping rods (34) symmetrically installed at both ends of the rotating shaft member (24) respectively, and a cleaning counterweight ball (35) suspended between adjacent two cleaning scraping rods (34) by an elastic band (36). A driving component for driving the rotating shaft member (24) to rotate is arranged on the outer wall of the detachable filter pipe (9). When the rotating shaft member (24) rotates, the cleaning scraping rods (34) are driven to scrape off the blocking impurities on the surfaces of the first filter screen (16) and the second filter screen (40), and the cleaning counterweight ball (35) is swung to impact on the first filter screen (16) and the second filter screen (40) when the elastic band (36) is used in cooperation.

2. The intelligent water and fertilizer integrated machine for crop planting according to claim 1, wherein: A detachable filter inner tube (15) is in interference fit with the inside of the detachable filter pipe (9), the first filter screen (16) and the second filter screen (40) are both fixed to both ends in the detachable filter inner tube (15), and through holes (17) are formed on the periphery of the detachable filter inner tube (15) and towards the motor base (12) side.

3. The intelligent water and fertilizer integrated machine for crop planting according to claim 2, characterized in that: A second bearing (18) is in interference fit with the through hole (17), and a connecting shaft member (19) is in interference fit with the inner ring of the second bearing (18). The connecting shaft member (19) extends through the through hole (17) into the inner cavity of the detachable filter inner tube (15).

4. The intelligent water and fertilizer integrated machine for crop planting according to claim 3, wherein: A transmission sealing box (25) is hinged at the middle position of the rotating shaft member (24), a fourth bearing (30) is embedded in the top surface of the transmission sealing box (25), and a transmission shaft (26) is in interference fit with the inner ring of the fourth bearing (30). The transmission shaft (26) is connected to the connecting shaft member (19).

5. The intelligent water and fertilizer integrated machine for crop planting according to claim 4, wherein: A clamping convex head (27) is integrally connected to the top end of the transmission shaft (26), and a clamping groove (28) for clamping the clamping convex head (27) is integrally formed at the bottom end of the connecting shaft member (19).

6. The intelligent water and fertilizer integrated machine for crop planting according to claim 5, characterized in that: One end of the transmission shaft (26) extending into the inner cavity of the transmission seal box (25) is fixedly installed with a first bevel gear (38). A second bevel gear (39) is fixedly sleeved on the periphery of the rotating shaft member (24) in the inner cavity of the transmission seal box (25). The first bevel gear (38) and the second bevel gear (39) are meshed and connected together.

7. An intelligent water and fertilizer integrated machine for crop planting according to claim 6, characterized in that: Fixed support rods (31) are symmetrically welded to the outer walls on both sides of the transmission seal box (25). Threaded counterbores (20) are symmetrically formed on the periphery of the detachable filter inner tube (15) and facing one side of the fixed support rods (31). Locking bolts (22) are threadedly connected in the threaded counterbores (20). The locking bolts (22) pass through the threaded counterbores (20) and are connected to the fixed support rods (31).

8. An intelligent water and fertilizer integrated machine for crop planting according to claim 7, characterized in that: A motor seat (12) is installed on the periphery of the detachable filter pipe (9). The drive assembly includes a servo motor (13) installed on the top surface of the motor seat (12). A through hole is longitudinally formed on the top surface of the motor seat (12), and a first bearing (14) is press-fitted at the top of the through hole.

9. The intelligent water and fertilizer integrated machine for crop planting according to claim 8, wherein: The output shaft of the servo motor (13) is press-fitted with the inner ring of the first bearing (14). The top end of the coupling member (19) away from the detachable filter inner tube (15) extends into the through hole of the motor seat (12) and is connected to the output shaft of the servo motor (13).

10. An intelligent water and fertilizer integrated machine for crop planting according to claim 9, characterized in that: The electric control cabinet (3) is provided with a collection module, a communication module, and a control module; The collection module includes a sensor in the on-line flow monitor (11) responsible for on-line monitoring of flow data; The communication module is a Wi-Fi network; The control module includes a PLC. The PLC receives the data signal of the decreasing flow rate transmitted by the collection module through the Wi-Fi network and controls the servo motor (13) to operate.

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