A partition mobile water and fertilizer integrated irrigation system and control method suitable for slope fruit tree drip irrigation

Abstract

The application provides a partition mobile water and fertilizer integrated irrigation system and control method suitable for slope fruit tree drip irrigation, and solves the problem that flexible use cannot be realized under the conditions of multiple partitions and different height differences in the prior art. The irrigation system comprises a movable head unit and multiple partition pipe network units. The movable head unit comprises a movable chassis provided with a water inlet and a water outlet. A mixed fertilizer pump, a filter and an adjustable pressure stabilizer are sequentially and communicatively arranged between the water inlet and the water outlet. The water outlet is detachably connected with the partition pipe network unit through a quick connector. The application solves the problems of poor equipment reusability and unsynchronized water and fertilizer adjustment in the existing slope irrigation. Through the mechanical linkage relationship between the valve core displacement and the fertilizer adjustment structure, the fertilizer amount can be adjusted in real time with the change of the system pressure, so that the influence of the flow fluctuation caused by the slope partition height difference on the fertilizer uniformity is avoided, and the adaptability and operation stability of the system are improved.

Description

Technical Field

[0001] This invention belongs to the field of agricultural irrigation technology, specifically relating to a zoned mobile integrated water and fertilizer irrigation system and control method suitable for drip irrigation of fruit trees on slopes. Background Technology

[0002] The terrain in hilly and sloping fruit tree planting areas is highly undulating with significant slopes, and orchards are usually divided into several relatively independent irrigation zones. Currently, irrigation for sloping fruit trees mostly adopts a fixed head-type integrated water and fertilizer drip irrigation system, which centrally sets up water pumps, fertilizer devices, filtration devices, and pressure stabilizing devices near the water source, and supplies water and fertilizer to each irrigation zone through a fixed pipeline network.

[0003] However, the aforementioned fixed irrigation systems have certain limitations in application to sloping orchards. First, the fixed irrigation head makes it difficult to reuse flexibly across multiple zones. Typically, separate main pipelines, control valve assemblies, and filtration and pressure stabilization equipment are needed for each zone, leading to redundant equipment configuration and high construction and maintenance costs. Second, the significant elevation differences on slopes result in varying pressure distribution between different zones and within the same zone, making uneven water distribution a common problem in drip irrigation systems. Third, existing integrated water and fertilizer systems often use fixed-ratio fertilization or manual adjustment methods, making it difficult to adjust the fertilization amount synchronously when the flow rate changes, affecting the consistency of water and fertilizer supply. Furthermore, some existing mobile irrigation devices have complex structures and require specific operating environments, making them inconvenient to use in sloping orchards.

[0004] Therefore, it is necessary to provide an irrigation system that can be adapted to multi-zone use on sloping land and take into account both pressure regulation and water and fertilizer regulation. Summary of the Invention

[0005] This invention proposes a zoned mobile integrated water and fertilizer irrigation system and control method suitable for drip irrigation of fruit trees on slopes, which solves the problem that it is difficult to achieve flexible use in multiple zones and under different elevation differences in the existing technology.

[0006] The technical solution of this invention is implemented as follows: A zoned mobile fertigation irrigation system suitable for drip irrigation of fruit trees on slopes includes: a movable head unit and multiple zoned pipe network units. The movable head unit includes a movable base frame with an inlet and an outlet. A mixing and fertilization pump, a filter, and an adjustable pressure regulator are sequentially connected between the inlet and outlet. The outlet is detachably connected to the zoned pipe network units via a quick connector. The adjustable pressure regulator includes a valve body, a valve core, and a pressure regulating structure. The pressure regulating structure includes a pressure regulating screw screwed to the valve body, which acts on the valve core via a pressure regulating spring. The valve body is equipped with a rotating sleeve, which is fitted onto one end of the pressure regulating screw located outside the valve body. A driven bevel gear is fixed on the rotating sleeve. A support plate is provided on the movable base, and a drive rod is rotatably connected to the support plate. A pendulum is hinged to one end of the drive rod, and a drive bevel gear is fixed to the other end. The drive bevel gear meshes with the driven bevel gear. The mixing fertilizer pump includes a fertilizer inlet pipe, on which a baffle is provided. The baffle slides along the fertilizer inlet pipe. A transmission mechanism is provided between the adjustable pressure regulator and the baffle. One end of the transmission mechanism maintains transmission contact with the valve core, and the other end is connected to the baffle.

[0007] Furthermore, the transmission mechanism includes a support frame and a transmission rod. The support frame is provided with two oppositely arranged fixed plates, which are connected by a rotating shaft. The transmission rod has a through hole, which is hinged to the rotating shaft. One end of the transmission rod is in transmission contact with the valve core, and the other end is hinged to the partition plate through an elongated hole.

[0008] Furthermore, the movable base is provided with a guide groove, and the bottom of the support frame is provided with a guide block. The guide block can slide along the guide groove, and the through hole is an elongated hole. The extension direction of the elongated hole is consistent with the extension direction of the guide groove.

[0009] Furthermore, the filter includes a housing, one end of which is connected to an inlet pipe and the other end to an outlet pipe. A telescopic rod is fixedly installed at the top of the housing. A filter screen is installed inside the housing. A drain shaft passes through the housing. The telescopic end of the telescopic rod is fixedly connected to the drain shaft. The drain shaft can move axially. A drain channel is provided inside the drain shaft. An agitator sleeve is fitted on the drain shaft inside the housing. Agitator blades are fixed on the side wall of the agitator sleeve. A drain hole is provided on the agitator sleeve between the agitator blades. When the drain channel and the drain hole are misaligned, the agitator sleeve closes the drain channel.

[0010] Furthermore, a control valve is installed on the discharge pipe, and a backwash pipe is connected to the discharge pipe between the control valve and the housing. The backwash pipe is connected to the mixing fertilizer pump through a two-position three-way valve.

[0011] Furthermore, a contact switch is provided on the movable base at the water outlet, a top rod corresponding to the contact switch is provided on the quick connector, and a parking device is provided on the movable base.

[0012] An irrigation control method for a zoned mobile fertigation system suitable for fruit tree planting on slopes, comprising the following steps: S1. Move the movable head unit to the target zone, and according to different slopes, make the pendulum drive the drive rod to rotate under the action of gravity, thereby adjusting the preload of the adjustable voltage regulator. S2. Connect the water outlet to the zoned pipe network unit via a quick connector; S3. Start water supply. The water flows through the mixing fertilizer pump, filter and adjustable pressure regulator in sequence. S4. During the water supply process, the adjustable pressure regulator generates valve core displacement according to pressure changes. S5. The valve core is used to drive the baffle to move through the transmission mechanism, thereby synchronously adjusting the output of the fertilizer pump and making the water-fertilizer ratio adaptively adjusted with pressure changes.

[0013] The beneficial effects of this technical solution are: This invention integrates a mixing and fertilization pump, a filter, and an adjustable pressure regulator into a movable head unit, combined with a pressure regulating transmission structure consisting of a pendulum, a drive rod, and a bevel gear. This structure allows the pressure regulating screw to rotate with the equipment's inclination on a slope, thereby changing the force of the pressure regulating spring on the valve core and ultimately adjusting the working pressure range of the pressure regulator. Based on this, the pressure regulator valve core will displace due to pressure changes. This displacement drives the movement of the baffle inside the mixing and fertilization pump through the transmission mechanism, thus achieving mechanical linkage between pressure regulation and fertilization regulation. Furthermore, it achieves coordinated water and fertilizer regulation without the need for a complex electrical control system. Simultaneously, this system can adapt to various working conditions in different slope zones, reducing manual intervention and making the water and fertilizer supply process more coordinated, thereby significantly improving the adaptability and stability of irrigation operations. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram on the right side of the present invention; Figure 2 This is a three-dimensional structural diagram on the left side of the present invention; Figure 3 A cross-sectional view of the adjustable voltage regulator and transmission mechanism; Figure 4 This is a cross-sectional three-dimensional structural diagram of the adjustable voltage regulator and transmission mechanism; Figure 5for Figure 4 A magnified schematic diagram of the partial structure at point A in the middle; Figure 6 A three-dimensional structural diagram showing the connection between the filter, the mixing fertilizer pump, and the adjustable voltage regulator; Figure 7 This is a cross-sectional view of the filter; Figure 8 This is a schematic diagram of the exploded structure of the filter.

[0016] The components include: 1. Movable base frame; 2. Inlet; 3. Outlet; 4. Quick connector; 5. Top rod; 6. Contact switch; 7. Support plate; 8. Drive rod; 9. Pendulum; 10. Drive bevel gear; 11. Driven bevel gear; 12. Rotating sleeve; 13. Pressure adjusting screw; 14. Pressure adjusting spring; 15. Valve body; 16. Valve core; 17. Mixing fertilizer pump; 18. Fertilizer inlet pipe; 19. Partition plate; 20. Transmission mechanism. 1. Support frame; 22. Rotating shaft; 23. Transmission rod; 24. Through hole; 25. Oblong hole; 26. Guide groove; 27. Guide block; 28. Housing; 29. ​​Feed pipe; 30. Telescopic rod; 31. Discharge pipe; 32. Filter screen; 33. Drain shaft; 34. Drain channel; 35. Agitator shaft sleeve; 36. Agitator blades; 37. Drain hole; 38. Backwash pipe; 39. Two-position three-way valve; 40. Control valve. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] In the description of this embodiment, it should be understood that the terms "center," "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention.

[0019] like Figure 1-5As shown, this embodiment of the invention provides a zoned mobile fertigation irrigation system suitable for drip irrigation of fruit trees on slopes. It includes a movable head unit and multiple zoned pipe network units. The movable head unit includes a movable base frame 1, on which an inlet 2 and an outlet 3 are provided. A mixing fertilizer pump 17, a filter, and an adjustable pressure regulator are sequentially connected between the inlet 2 and the outlet 3. The outlet 3 is detachably connected to the zoned pipe network unit via a quick connector 4. The adjustable pressure regulator includes a valve body 15, a valve core 16, and a pressure regulating structure. The pressure regulating structure includes a pressure regulating screw 13 screwed to the valve body 15. The pressure regulating screw 13 acts on the valve core 16 through a pressure regulating spring 14. The valve body 15 is equipped with a rotary valve. The rotating sleeve 12 is sleeved on one end of the pressure regulating screw 13 outside the valve body 15. A driven bevel gear 11 is fixed on the rotating sleeve 12. A support plate 7 is provided on the movable base 1. A drive rod 8 is rotatably connected to the support plate 7. A pendulum 9 is hinged to one end of the drive rod 8, and a drive bevel gear 10 is fixed to the other end. The drive bevel gear 10 meshes with the driven bevel gear 11. The mixing fertilizer pump 17 includes a fertilizer inlet pipe 18. A partition 19 is provided on the fertilizer inlet pipe 18. The partition 19 slides along the fertilizer inlet pipe 18. A transmission mechanism 20 is provided between the adjustable voltage regulator and the partition 19. One end of the transmission mechanism 20 maintains transmission contact with the valve core 16, and the other end is connected to the partition 19.

[0020] In practical use, the movable head unit is first moved to the target irrigation zone by manual pushing or pulling. Then, the outlet 3 is connected to the corresponding zone's pipe network interface via quick connector 4. Quick connector 4 can adopt a common plug-in sealed connector structure. After connection, the water supply device is turned on, and water enters from the inlet 2. After initial mixing of water and fertilizer by the mixing fertilizer pump 17, it enters the filter for impurity filtration, then enters the adjustable pressure regulator for pressure adjustment, and finally enters the zone's pipe network from the outlet 3. The mixing fertilizer pump 17 can adopt an existing Venturi fertilizer applicator or proportional fertilizer pump structure, the filter can adopt an existing mesh filter structure, and the adjustable pressure regulator can adopt an existing spring-loaded pressure reducing valve structure. Through the above process, water and fertilizer can be stably delivered to the target zone, and the equipment can be circulated between multiple zones, which has the beneficial effects of reducing redundant equipment configuration and improving utilization efficiency. The water supply device is specifically an existing water pump system. The movable base frame 1 can be implemented using existing agricultural mobile support or small towing platform structures to support various functional components and achieve overall movement.

[0021] like Figure 3-5As shown, the adjustable pressure regulator includes a valve body 15, an elastic diaphragm, a pressure regulating spring 14, a valve stem, a valve core 16, and a pressure regulating structure. The elastic diaphragm is sealed inside the valve body 15, dividing the interior of the valve body 15 into a water flow chamber and a pressure regulating chamber. One end of the valve stem is connected to the elastic diaphragm, and the other end is connected to the valve core 16. The valve core 16 controls the opening of the water flow channel. The pressure regulating spring 14 is located in the pressure regulating chamber, with one end abutting against the diaphragm and the other end abutting against the pressure regulating structure on the upper part of the valve body 15. The pressure regulating structure includes a pressure regulating screw 13 screwed to the valve body 15. One end of the pressure regulating screw 13, located in the pressure regulating chamber, abuts against the pressure regulating spring 14 through a pressure regulating plate.

[0022] like Figure 1 , 4 As shown in Figure 5, the slope-sensing pressure regulating structure is constructed through the transmission of the pendulum 9, drive rod 8, and bevel gear. The bevel gear transmission is a conventional mechanical transmission structure. When the movable head unit moves onto a slope, the pendulum 9 tends to be vertical under gravity, thus deflecting relative to the base frame. This deflection is transmitted to the drive bevel gear 10 via the drive rod 8. The drive bevel gear 10 drives the driven bevel gear 11 to rotate, which in turn drives the rotating sleeve 12 to rotate. Since the rotating sleeve 12 is sleeved and connected to the pressure regulating screw 13, the rotation of the rotating sleeve 12 causes the pressure regulating screw 13 to rotate, thereby changing the action state of the pressure regulating spring 14 on the valve core 16, and thus adjusting the working range of the pressure regulator. By adjusting the pressure regulating screw 13 through the pendulum 9, the adjustable pressure regulator can adjust its working state according to the equipment's tilt state, thereby adjusting the system's working pressure range without frequent manual adjustments. This has the beneficial effect of adapting to complex slope conditions and improving water supply stability. During water supply, the valve core 16 inside the adjustable pressure regulator will undergo axial displacement as the system pressure changes. This displacement is transmitted to the baffle 19 via the transmission rod 23, causing the baffle 19 to slide along the fertilizer inlet pipe 18, thereby changing the opening of the fertilizer inlet pipe 18. Through the transmission mechanism 20, the amount of fertilizer applied can be automatically adjusted according to changes in system pressure, thus achieving coordinated regulation of the water-fertilizer ratio, reducing manual intervention, and improving the uniformity of fertilization and fertilizer utilization efficiency.

[0023] like Figure 3-5As shown, the transmission mechanism 20 includes a support frame 21 and a transmission rod 23. The support frame 21 has two opposing fixed plates connected by a rotating shaft 22. The transmission rod 23 has a through hole 24 extending through it, and is hinged to the rotating shaft 22 via the through hole 24. One end of the transmission rod 23 is in transmission contact with the valve core 16, and the other end is hinged to the partition plate 19 via an elongated hole 25. During water supply, after the water flows into the adjustable pressure regulator, the valve core 16 undergoes axial displacement under the action of the water. This displacement is transmitted to the partition plate 19 in the mixing fertilizer pump 17 via the transmission mechanism 20. The partition plate 19 changes the opening of the fertilizer inlet channel during sliding, thereby adjusting the amount of fertilizer entering the water flow. For example, when the system pressure increases, the valve core 16 displacement increases, causing the partition plate 19 to move, thus changing the opening of the fertilizer channel. When the pressure decreases, the position of the partition plate 19 adjusts accordingly. The linkage between fertilizer application rate and system pressure is achieved through the displacement of valve core 16, reducing the need for separate adjustments to the fertilizer application device and improving the uniformity of fertilizer application and the degree of system automation. The transmission rod 23 can be any existing rigid rod.

[0024] like Figure 2-4 As shown, the movable base 1 is provided with a guide groove 26, and the bottom end of the support frame 21 is provided with a guide block 27. The guide block 27 can slide along the guide groove 26. The through hole 24 is an elongated hole, and the extension direction of the elongated hole is consistent with the extension direction of the guide groove 26. By setting the guide groove 26, the position of the support rod can be adjusted, thereby achieving the effect of adjusting the fulcrum of the transmission rod 23. When the fulcrum of the transmission rod 23 gradually approaches the valve core 16, the relative angle formed between the support frame 21 and the movable base 1 gradually increases, thereby achieving the effect of adjusting the opening ratio of the partition 19. At the same time, the position of the support frame 21 can be finely adjusted, so that the transmission rod 23 and the partition 19 always maintain an effective connection. Through the above structure, the adaptability of the transmission system is improved, mechanical jamming or stress concentration is avoided, and the beneficial effects of improving the reliability and service life of the device are achieved. Through the cooperation of the guide groove 26 and the guide block 27, the adaptability and operational stability of the transmission mechanism 20 are improved.

[0025] like Figure 1 , 2As shown in Figures 6-8, the filter includes a housing 28. One end of the housing 28 is connected to an inlet pipe 29, and the other end is connected to an outlet pipe 31. A telescopic rod 30 is fixedly installed at the top of the housing 28. A filter screen 32 is installed inside the housing 28. A drain shaft 33 is installed on the housing 28. The telescopic end of the telescopic rod 30 is fixedly connected to the drain shaft 33. The drain shaft 33 can move axially. A drain channel 34 is provided inside the drain shaft 33. A stirring shaft sleeve 35 is fitted on the drain shaft 33 inside the housing 28. Stirring blades 36 are fixed on the side wall of the stirring shaft sleeve 35. A drain hole 37 is provided on the stirring shaft sleeve 35 between the stirring blades 36. When the drain channel 34 and the drain hole 37 are misaligned, the stirring shaft sleeve 35 closes the drain channel 34.

[0026] During water supply, water flows into the housing 28 and is filtered by the filter screen 32, which can be an existing metal mesh or plastic filter screen structure. An agitator sleeve 35 is installed inside the housing 28, with agitator blades 36 mounted on it. These blades rotate under the impact of the water flow, thus mixing the water and fertilizer. When sewage discharge is required, it is driven by a telescopic rod 30 (which can be an existing electric, hydraulic, or manual push rod). The telescopic rod 30 drives the sewage discharge shaft 33 to move axially, aligning the sewage discharge channel 34 on the sewage discharge shaft 33 with the sewage discharge hole 37 on the agitator sleeve 35. When the agitator sleeve 35 rotates, the agitator shaft, when rotated to a specific angle, will connect with the sewage discharge channel 34, thus forming a sewage discharge path and allowing impurities deposited inside the housing 28 to be discharged. Under normal operating conditions, the sewage discharge shaft 33 is in the upper position, and the sewage discharge channel 34 is misaligned with the sewage discharge hole 37, thus keeping the sewage discharge channel 34 closed and ensuring normal water flow through the filter. This structure integrates filtration, mixing, and wastewater discharge, reducing the number of devices required and offering the advantages of a compact design and reduced risk of clogging. Electric, hydraulic, or manual actuators can all be implemented using existing technologies.

[0027] like Figure 1 , 2As shown in Figure 6, a control valve 40 is installed on the discharge pipe 31. A backwash pipe 38 is connected to the discharge pipe 31 between the control valve 40 and the housing 28. The backwash pipe 38 is connected to the mixing fertilizer pump 17 through a two-position three-way valve 39. After the filter has been used for a period of time, impurities may accumulate on the surface of the filter screen 32, leading to increased flow resistance. At this time, the control valve 40 is closed, and the two-position three-way valve 39 is switched. The mixing fertilizer pump 17 allows water to flow through the backwash pipe 38 and the filter screen 32 through the two-position three-way valve 39 and then into the housing 28, thereby flushing away the impurities attached to the filter screen 32 through the sewage discharge path. After backwashing is completed, the control valve 40 is restored to its original state, and the system continues to operate normally. Through the cooperation of the backwash pipe 38 and the two-position three-way valve 39, the filter can be cleaned online, reducing the number of disassembly and maintenance operations and improving the continuous operation capability of the equipment. Both the control valve 40 and the two-position three-way valve 39 use existing fluid control components.

[0028] like Figure 1 , 2 As shown, a contact switch 6 is provided on the movable base 1 at the water outlet 3, a top rod 5 corresponding to the contact switch 6 is provided on the quick connector 4, and a parking device is provided on the movable base 1.

[0029] After the equipment is moved to the target location, the outlet 3 is connected to the zoned pipe network via quick connector 4. When quick connector 4 is inserted, its push rod 5 triggers contact switch 6. Contact switch 6 outputs a control signal to control the parking device. The parking device can be implemented using an existing electronic parking structure or a mechanical locking structure. The mechanical locking structure can specifically be a caliper brake. When contact switch 6 is triggered, the parking device is activated, fixing the movable base 1 in the current position. When the connector is disconnected, push rod 5 leaves contact switch 6, the parking device is released, and thus the movable base 1 is quickly positioned and fixed, reducing human error and improving operational safety and convenience.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A zoned, mobile, integrated water and fertilizer irrigation system suitable for drip irrigation of fruit trees on slopes, characterized in that: The device includes a movable head unit and multiple zoned pipe network units. The movable head unit includes a movable base frame (1), on which an inlet (2) and an outlet (3) are provided. A mixing fertilizer pump (17), a filter, and an adjustable pressure regulator are sequentially connected between the inlet (2) and the outlet (3). The outlet (3) is detachably connected to the zoned pipe network unit via a quick connector (4). The adjustable pressure regulator includes a valve body (15), a valve core (16), and a pressure regulating structure. The pressure regulating structure includes a pressure regulating screw (13) screwed to the valve body (15). The pressure regulating screw (13) acts on the valve core (16) through a pressure regulating spring (14). A rotating sleeve (12) is provided on the valve body (15). The rotating sleeve (12) is sleeved on the pressure regulating screw (13) and placed on the valve core (16). At one end of the valve body (15), a driven bevel gear (11) is fixed on a rotating sleeve (12). A support plate (7) is provided on a movable base frame (1). A drive rod (8) is rotatably connected to the support plate (7). A pendulum (9) is hinged to one end of the drive rod (8), and a drive bevel gear (10) is fixed to the other end. The drive bevel gear (10) meshes with the driven bevel gear (11). The mixed fertilizer pump (17) includes a fertilizer inlet pipe (18). A partition (19) is provided on the fertilizer inlet pipe (18). The partition (19) slides along the fertilizer inlet pipe (18). A transmission mechanism (20) is provided between the adjustable voltage regulator and the partition (19). One end of the transmission mechanism (20) is in transmission contact with the valve core (16), and the other end is connected to the partition (19).

2. The zoned mobile integrated water and fertilizer irrigation system suitable for fruit tree planting on slopes according to claim 1, characterized in that: The transmission mechanism (20) includes a support frame (21) and a transmission rod (23). The support frame (21) is provided with two oppositely arranged fixed plates, which are connected by a rotating shaft (22). The transmission rod (23) has a through hole (24) through it. The transmission rod (23) is hinged to the rotating shaft (22) through the through hole (24). One end of the transmission rod (23) is in transmission contact with the valve core (16), and the other end is hinged to the partition plate (19) through an elongated hole (25).

3. A zoned mobile integrated water and fertilizer irrigation system suitable for fruit tree planting on slopes, as described in claim 2, is characterized in that: The movable base (1) is provided with a guide groove (26), and the bottom of the support frame (21) is provided with a guide block (27). The guide block (27) can slide along the guide groove (26). The through hole (24) is a long hole, and the extension direction of the long hole is consistent with the extension direction of the guide groove (26).

4. The zoned mobile integrated water and fertilizer irrigation system suitable for fruit tree planting on slopes according to claim 1, characterized in that: The filter includes a housing (28), one end of which is connected to an inlet pipe (29) and the other end is connected to an outlet pipe (31). A telescopic rod (30) is fixedly provided at the top of the housing (28). A filter screen (32) is provided inside the housing (28). A drain shaft (33) is provided on the housing (28). The telescopic end of the telescopic rod (30) is fixedly connected to the drain shaft (33). The drain shaft (33) can move axially. A drain channel (34) is provided inside the drain shaft (33). A stirring shaft sleeve (35) is fitted on the drain shaft (33) inside the housing (28). A stirring blade (36) is fixed on the side wall of the stirring shaft sleeve (35). A drain hole (37) is provided on the stirring shaft sleeve (35) between the stirring blades (36). When the drain channel (34) and the drain hole (37) are misaligned, the stirring shaft sleeve (35) closes the drain channel (34).

5. A zoned mobile integrated water and fertilizer irrigation system suitable for fruit tree planting on slopes, as described in claim 4, is characterized in that: The discharge pipe (31) is equipped with a control valve (40), and a backwash pipe (38) is connected to the discharge pipe (31) between the control valve (40) and the housing (28). The backwash pipe (38) is connected to the mixing fertilizer pump (17) through a two-position three-way valve (39).

6. A zoned mobile integrated water and fertilizer irrigation system suitable for fruit tree planting on slopes, as described in claim 1, is characterized in that: A contact switch (6) is provided on the movable base (1) at the water outlet (3), a top rod (5) corresponding to the contact switch (6) is provided on the quick connector (4), and a parking device is provided on the movable base (1).

7. An irrigation control method for a zoned mobile integrated water and fertilizer irrigation system suitable for fruit tree planting on slopes, characterized in that, The specific steps are as follows: S1. Move the movable head unit to the target partition, and make the pendulum (9) drive the drive rod (8) to rotate under the action of gravity according to the tilt state of the equipment, thereby adjusting the preload of the adjustable voltage regulator. S2. Connect the outlet (3) to the zoned pipe network unit via quick connector (4); S3. Start water supply, and the water flows through the mixing fertilizer pump (17) and the filter and adjustable pressure regulator in sequence; S4. During the water supply process, the adjustable pressure regulator generates valve core (16) displacement according to pressure changes; S5. The valve core (16) is used to drive the partition (19) to move through the transmission mechanism (20), thereby synchronously adjusting the output of the fertilizer pump and making the water-fertilizer ratio adaptively adjusted with pressure changes.

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