An adjustable drip irrigation device for agricultural planting

Abstract

This invention discloses an adjustable drip irrigation device for agricultural planting, belonging to the field of drip irrigation technology. It includes a water tank and a main water pipe. Several sets of relatively distributed branch water pipes are spaced apart on the main water pipe, and each branch water pipe is equipped with several drippers. Each dripper includes a fixing plate and a housing. The fixing plate is sleeved on the outside of the housing. The housing has a hollow structure, with an inlet at its upper end extending into the branch water pipe. A base plate is located at the lower end of the housing, with an outlet on the base plate connected to the dripper. A drive housing is fixed to the underside of the base plate, and a pipeline connects the drive housing to the housing. A valve is located at the connection between the pipeline and the housing. Several circular holes are formed at the bottom of the drive housing. This invention can be used for self-checking and unblocking of drip irrigation devices, improving the quality of drip irrigation.

Description

Technical Field

[0001] This invention relates to the field of drip irrigation technology, specifically to an adjustable drip irrigation device for agricultural planting. Background Technology

[0002] Irrigation is a technical measure to replenish the water needed by crops. To ensure normal crop growth and achieve high and stable yields, crops must be supplied with sufficient water. Under natural conditions, insufficient or uneven rainfall often fails to meet the water requirements of crops. Therefore, artificial irrigation is necessary to supplement the lack of natural rainfall.

[0003] There are many types of irrigation, among which drip irrigation is a method of irrigation that delivers water directly to the roots of crops through pipes and drippers. It is suitable for arid regions and crops with high economic value. A drip irrigation system typically consists of five parts: a water source, filtration, water delivery pipes, drippers or drip tape, and control equipment.

[0004] While existing drip irrigation systems can filter irrigation water to remove impurities and prevent dripper clogging, in practical applications, crop growth disturbs the soil, and drippers close to the ground can become clogged with soil. The drip irrigation system itself cannot identify and locate the clogged areas. Summary of the Invention

[0005] The purpose of this invention is to provide an adjustable drip irrigation device for agricultural planting to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an adjustable drip irrigation device for agricultural planting, including a water tank and a main water pipe. The water tank is used to store irrigation water, the main water pipe is connected to the water outlet of the water tank, and several sets of relatively distributed branch water pipes are arranged at intervals on the main water pipe, and several drippers are arranged on the branch water pipes.

[0007] According to the above technical solution, the dripper includes a housing, a base plate is provided at the lower end of the housing, and a water outlet is provided on the base plate, with the water outlet connected to the dripper.

[0008] According to the above technical solution, a drive housing is fixed on the lower side of the base plate. A cleaning component is rotatably installed inside the drive housing. A pipeline is connected between the drive housing and the housing. A valve is installed at the connection between the pipeline and the housing. Several round holes are opened at the bottom of the drive housing. The round holes are used to draw irrigation water directly from the inside of the dripper when the dripper is blocked, so as to replace the dripping effect of the dripper and meet the water needs of the crop.

[0009] According to the above technical solution, the cleaning component includes a rotating ring, with several blades fixed to the upper circumference of the rotating ring and several brush heads connected to the lower circumference of the rotating ring. A force sensing module is set at the connection between the brush head and the rotating ring. The drive housing has an annular groove that cooperates with the rotating ring. The blades are located inside the drive housing and are set at a certain angle. When water flows into the drive housing, it pushes the blades to drive the rotating ring to rotate. The brush head is made of a relatively hard material, and its inward end extends into the water outlet range of the drip head. When the drip head is in normal drip irrigation state, the falling water droplets bring downward impact force to the brush head, which is detected by the force sensing module. The presence or absence of the force signal determines whether there is a blockage, and the water flow is adjusted according to the frequency of the force signal.

[0010] According to the above technical solution, a water outlet is provided on the base plate, and a drip head is connected to the water outlet.

[0011] According to the above technical solution, an elastic diaphragm is provided inside the shell. The side of the elastic diaphragm facing the first pipe is set as a water flow channel, and the other side of the elastic diaphragm is set as a second pipe. The two ends of the second pipe are located on the upper and lower sides of the elastic diaphragm, respectively. A valve is set at the connection of the second pipe on the upper side of the elastic diaphragm.

[0012] According to the above technical solution, the elastic diaphragm deforms according to the pressure state inside the shell. When water flows into the shell, the water pressure causes the elastic diaphragm to deform. When the water pressure is high, the pressure on the elastic diaphragm increases, causing it to contract inward, i.e., bend towards the outlet, reducing the cross-sectional area of ​​the water flow channel and thus reducing the flow rate. Conversely, when the water pressure is low, the elastic diaphragm returns to its original shape, increasing the water flow channel area and ensuring sufficient water output. Pipeline 2 is used to balance the upper and lower pressures of the elastic diaphragm. By opening valve 2, water is directly introduced from the upper side of the elastic diaphragm to the lower side, reducing the pressure difference between the upper and lower sides of the elastic diaphragm and thus reducing the deformation of the elastic diaphragm.

[0013] According to the above technical solution, a simple flow detection component is provided inside the housing to detect the speed of fluid flow and the magnitude of internal pressure inside the housing. The flow detection component includes a connecting plate, on which several springs are fixed. The other end of the springs is connected to a pressure cover, which slides with the connecting plate. A pressure sensing module is provided at the connection between the connecting plate and the springs.

[0014] According to the above technical solution, a guide plate is installed at the junction of the main water pipe and the branch water pipe. The guide plate is set vertically on both sides and the connection is set with an arc. One side of the guide plate faces the corresponding branch water pipe, and the other side of the guide plate faces the direction of fluid flow in the main water pipe.

[0015] According to the above technical solution, a rotating shaft is provided on one side of the branch water pipe relative to the guide plate. Several blades are arranged around the circumference of the rotating shaft. The other end of the blades is inclined towards the main water pipe. One end of the rotating shaft extends out of the branch water pipe and is equipped with a pointer. A visual detection module is provided between the main water pipe and each group of branch water pipes to monitor the rotation status of the pointer.

[0016] According to the above technical solution, a water pump is installed at the connection between the water tank and the main water pipe to provide power.

[0017] According to the above technical solution, an inlet pipe is provided on the upper side of the water tank, and a filter assembly is provided inside the water tank. The filter assembly includes a boss, which includes a platform and a plane. Several filter holes are opened on the plane for filtering irrigation water. A rotating shaft is provided on the platform, and a motor is connected to one end of the rotating shaft. A blade is connected to the rotating shaft.

[0018] According to the above technical solution, the blade is designed to match the table surface and the planar shape, and a scraper is provided at one end of the blade on the planar surface.

[0019] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention, by providing a drive housing and a first pipeline, allows irrigation water to be drawn from inside the dripper housing when the dripper becomes clogged, and flows out through a circular hole in the drive housing, temporarily replacing the dripper's drip irrigation effect and ensuring the crop's water needs. By providing a rotating ring and brush head that cooperate with the drive housing, the brush head can be rotated using the power of the water flow introduced into the drive housing, assisting in clearing the dripper blockage. By providing a second pipeline, the pressure difference between the upper and lower sides of the elastic diaphragm can be reduced, thereby reducing the deformation of the elastic diaphragm, increasing the water flow channel area, and increasing the flow rate. This attempts to use high-flow irrigation water to break through the dripper blockage and achieve a clearing effect. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of the drip irrigation device of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the dripper of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the dripper of the present invention;

[0024] Figure 4 This is a partial cross-sectional view of the dripper of the present invention;

[0025] Figure 5 This is a schematic diagram of the exploded state structure of the driving shell and rotating ring of the present invention;

[0026] Figure 6 This is a partial cross-sectional view of the flow detection component of the present invention;

[0027] Figure 7 This is a schematic diagram of the connection structure of the main water pipe and branch water pipes of the present invention;

[0028] Figure 8 This is the present invention. Figure 7 Enlarged diagram of area A;

[0029] Figure 9 This is a schematic diagram of the internal fluid flow direction of the main water pipe and branch water pipes of the present invention;

[0030] Figure 10 This is a schematic diagram of the internal structure of the water tank of the present invention;

[0031] Figure 11 This is a schematic diagram of the structure of the filter component of the present invention.

[0032] In the diagram: 1. Water tank; 11. Inlet pipe; 2. Main water pipe; 21. Vision inspection module; 3. Branch water pipe; 31. Rotating shaft one; 32. Blade two; 33. Indicator; 4. Dripping head; 41. Fixing plate; 42. Housing; 421. Inlet; 422. Base plate; 423. Outlet; 424. Dripping head; 43. Drive housing; 431. Circular hole; 432. Annular groove; 44. Pipeline one; 441. Valve one ; 45. Rotating ring; 46. Blade 1; 47. Brush head; 471. Force sensing module; 48. Elastic diaphragm; 49. Pipeline 2; 491. Valve 2; 5. Flow detection assembly; 51. Connecting plate; 52. Spring; 53. Pressure cover; 6. Guide plate; 7. Water pump; 81. Boss; 811. Platform; 812. Plane; 82. Filter hole; 83. Rotating shaft 2; 84. Motor; 85. Paddle blade; 86. Scraper. Detailed Implementation

[0033] 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.

[0034] Please see Figures 1-11 The present invention provides a technical solution: an adjustable drip irrigation device for agricultural planting, including a water tank 1 and a main water pipe 2. The water tank 1 is used to store irrigation water. The main water pipe 2 is connected to the water outlet of the water tank 1. Several sets of relatively distributed branch water pipes 3 are arranged at intervals on the main water pipe 2. Several drippers 4 are arranged on the branch water pipes 3.

[0035] The dripper 4 includes a fixing plate 41 and a housing 42. The fixing plate 41 is sleeved on the outside of the housing 42 and is used to fix the housing 42 at the corresponding position of the branch water pipe 3. The housing 42 has a hollow structure. The upper end of the housing 42 is provided with a water inlet 421 that extends into the interior of the branch water pipe 3 and is used to introduce water flow into the interior of the branch water pipe 3. The lower end of the housing 42 is provided with a bottom plate 422. The bottom plate 422 is provided with a water outlet 423, and the water outlet 423 is connected to the dripper 424.

[0036] A drive housing 43 is fixed to the lower side of the base plate 422. A cleaning component is rotatably installed inside the drive housing 43. A pipe 44 is connected between the drive housing 43 and the housing 42. A valve 441 is installed at the connection between the pipe 44 and the housing 42. Several round holes 431 are opened at the bottom of the drive housing 43.

[0037] In actual operation, irrigation water inside the water tank 1 is led out to the main water pipe 2, and the main water pipe 2 is distributed to each branch water pipe 3. After the irrigation water enters each dripper 4, the dripper 4 drips water evenly into the soil near the crop roots in a small flow rate to achieve precise irrigation. When the outlet 423 or the dripper 424 is blocked, when the valve 441 is opened, the water in the housing 42 will flow from the pipe 44 into the drive housing 43, and then flow out from the round hole 431, replacing the irrigation function of the dripper 424. At the same time, the water flowing into the drive housing 43 will serve as the driving force for the cleaning component, causing the cleaning component to rotate relative to the drive housing 43.

[0038] like Figures 3-5 As shown, the cleaning assembly includes a rotating ring 45. Several blades 46 are fixed to the upper circumference of the rotating ring 45, and several brush heads 47 are connected to the lower circumference of the rotating ring 45. Each brush head 47 is connected to the rotating ring 45 at a point where they are joined to the rotating ring 45, and a force-sensing module 471 is provided. Preferably, the force-sensing module 471 has a ring frame. The outer side of the ring frame is fixedly connected to the inner diameter of the rotating ring 45, and several force-sensitive units are arranged on the inner circumference of the ring frame. The connection end of the brush head 47 to the ring frame corresponds to each force-sensitive unit.

[0039] The following is a supplementary explanation based on the above structure: The drive housing 43 and the rotating ring 45 have an annular groove 432. The blade 46 is located inside the drive housing 43 and is set at a certain angle. When water flows into the drive housing 43, it simultaneously pushes the blade 46 to drive the rotating ring 45 to rotate. The brush head 47 is made of a relatively hard material, such as PP polypropylene bristles, which has excellent acid and alkali corrosion resistance and chemical stability, and has low water absorption and relatively low price. The inward end of the brush head 47 extends into the water outlet range of the drip head 424. When the drip head 424 is in normal drip irrigation state, the falling water droplets bring downward impact force to the brush head 47, which is detected by the force sensing module 471. The presence or absence of the force signal determines whether there is a blockage, and the water flow is adjusted according to the frequency of the force signal.

[0040] In one embodiment, an elastic diaphragm 48 is provided inside the housing 42. The side of the elastic diaphragm 48 facing the first pipe 44 is configured as a water flow channel, and the other side of the elastic diaphragm 48 is configured with a second pipe 49. The two ends of the second pipe 49 are located on the upper and lower sides of the elastic diaphragm 48, respectively. A valve 491 is provided at the connection point of the second pipe 49 on the upper side of the elastic diaphragm 48.

[0041] It should be added that: such as Figure 4 As shown, the elastic diaphragm 48 deforms according to the pressure state inside the housing 42. When water flows into the housing 42, the water pressure causes the elastic diaphragm 48 to deform. When the water pressure is high, the pressure on the elastic diaphragm 48 increases, causing it to contract inward, that is, bend towards the outlet 423, reducing the cross-sectional area of ​​the water flow channel and thus reducing the flow rate. Conversely, when the water pressure is low, the elastic diaphragm 48 returns to its original shape, increasing the water flow channel area and ensuring sufficient water output. Pipeline 2 49 is used to balance the pressure above and below the elastic diaphragm 48. That is, if there is a large drip irrigation demand, while ensuring a high flow rate, by opening valve 2 491, water is directly introduced from the upper side of the elastic diaphragm 48 to the lower side of the elastic diaphragm 48, reducing the pressure difference between the upper and lower sides of the elastic diaphragm 48, thus reducing the deformation of the elastic diaphragm 48 and increasing the water flow channel area. At this time, the water flow rate is maintained at a high flow rate, thereby increasing the output water volume.

[0042] Furthermore, such as Figure 6 As shown, a simple flow detection component 5 is provided inside the housing 42 to detect the pressure inside the housing 42. The flow detection component 5 includes a connecting plate 51, on which several springs 52 are fixed. The other end of the springs 52 is connected to a pressure cover 53. The pressure cover 53 slides with the connecting plate 51. A pressure sensing module is provided at the connection between the connecting plate 51 and the springs 52.

[0043] In actual operation, when water flows into the housing 42, a certain water pressure is generated. As the water pressure increases, the water flow also increases. When the water pressure is high, the spring 52 fixed at one end generates an axial compressive force, causing the pressure cover 53 to move downward relative to the connecting plate 51. The pressure sensing module detects the corresponding pressure signal; the stronger the water pressure, the greater the pressure. Preferably, the connecting plate 51 has sealing plates on both sides of the pressure cover 53, making the inside of the pressure cover 53 relatively sealed. This prevents water from entering through the openings on both sides and exerting a reverse thrust on the compression spring 52, thus offsetting some of the downward pressure of the flowing water on the pressure cover 53 and improving the accuracy of pressure detection.

[0044] like Figures 8-9 As shown, guide plates 6 are respectively installed at the junction of the main water pipe 2 and the branch water pipe 3. The guide plates 6 are vertically installed on both sides and the connection is curved. One side of the guide plate 6 faces the corresponding branch water pipe 3, and the other side of the guide plate 6 faces the direction of fluid flow in the main water pipe 2.

[0045] Furthermore, a rotating shaft 31 is rotatably provided on one side of the branch water pipe 3 relative to the guide plate 6. Several blades 32 are arranged on the circumference of the surface of the rotating shaft 31. The other end of the blades 32 is inclined toward the main water pipe 2. One end of the rotating shaft 31 extends out of the branch water pipe 3 and is provided with a pointer 33. A visual detection module 21 is provided between the main water pipe 2 and each group of branch water pipes 3 to monitor the rotation status of the pointer 33.

[0046] It should be further explained that when the water flows through the guide plate 6, part of the fluid flows from one side of the guide plate 6 to the branch water pipe 3, while the other part flows from the other side of the guide plate 6 to the next set of branch water pipes 3. When the fluid flowing to the branch water pipe 3 passes through the second blade 32, it pushes the second blade 32 to drive the rotating shaft 31 to rotate, causing the indicator 33 to rotate, which is detected by the vision detection module 21. The second blade 32 is used to assist in monitoring the fluid flow status on the inlet side of the branch water pipe 3 to determine whether there is a blockage.

[0047] like Figure 1 As shown, a water pump 7 is installed at the connection between the water tank 1 and the main water pipe 2 to provide power.

[0048] like Figures 10-11 As shown, a water inlet pipe 11 is provided on the upper side of the water tank 1, and a filter assembly is provided inside the water tank 1. The filter assembly includes a boss 81, which includes a platform 811 and a plane 812. Several filter holes 82 are provided on the plane 812 for filtering irrigation water. A rotating shaft 83 is rotatably provided on the platform 811. A motor 84 is connected to one end of the rotating shaft 83, and a paddle 85 is connected to the rotating shaft 83.

[0049] Furthermore, the blade 85 is designed to match the shape of the table 811 and the plane 812, and a scraper 86 is provided at one end of the blade 85 located on the plane 812.

[0050] In actual operation, after irrigation water is introduced into the water tank 1 through the inlet pipe 11, the water is sieved through the filter holes 82 of the plane 812 to remove impurities that may cause pipe blockage. When the motor 84 starts, it drives the rotating shaft 83 to rotate, causing the scraper 86 to rotate along the surface of the plane 812, thereby clearing the filter holes 82.

[0051] It should be further explained that: the filter assembly is used to remove blockages in the irrigation water introduced into water tank 1; the indicator 33 is used to check for blockages in the connection between branch water pipe 3 and main water pipe 2; and the cleaning assembly is used to check for blockages in drippers 4. This three-stage blockage check improves the overall quality of the drip irrigation system.

[0052] The specific implementation method is as follows:

[0053] Step 1: Filtration. Irrigation water is introduced into water tank 1, filtered by the filter assembly, and then temporarily stored.

[0054] Step 2: Water delivery. Water pump 7 pumps the irrigation water in water tank 1 to the main water pipe 2.

[0055] Step 3: Diversion. Irrigation water is diverted from the main water pipe 2 to each branch water pipe 3 via the guide plate 6.

[0056] Step 4: Drip irrigation. Irrigation water from branch pipe 3 enters each dripper 4 to complete drip irrigation.

[0057] Specifically, in step three, the visual detection module 21 determines whether the corresponding branch water pipe 3 is blocked based on the rotation state of each indicator 33. That is, if a blockage occurs at the connection between a branch water pipe 3 and the main water pipe 2, the internal water passage is blocked, the blade 2 32 cannot rotate, and the corresponding indicator 33 remains stationary.

[0058] Furthermore, the ability of the indicator 33 to complete a full rotation is used as the criterion. If the indicator 33 can complete a full rotation, there are no obstructions within the rotation range of the second blade 32, and the connection between the branch water pipe 3 and the main water pipe 2 is not blocked. If the indicator 33 cannot complete a full rotation, the degree of blockage is used as the criterion for judging the degree of blockage. The more obstructions there are, the more difficult it is for the indicator 33 to rotate. When the connection between the branch water pipe 3 and the main water pipe 2 is completely blocked, the second blade 32 cannot rotate, and the indicator 33 remains stationary.

[0059] Furthermore, the flow velocity of the fluid inside the branch water pipe 3 is determined based on the rotation speed of the indicator 33. That is, the branch water pipe 3 with a faster internal flow velocity corresponds to the faster rotation speed of the indicator 33.

[0060] In step four, the method for detecting blockage in dripper 4 is as follows: Before determining if dripper 4 is blocked, the indicator 33 of the corresponding branch water pipe 3 is checked to determine if the branch water pipe 3 is blocked. If the branch water pipe 3 is blocked, dripper 4 is checked. When dripper 4 is working normally, the dripping water droplets fall through the brush head 47, and the force sensing module 471 detects the corresponding downward force, and the frequency of the force signal is equal to the frequency of the water droplets falling. If dripper 4 is blocked, there will be no more water droplets falling or the water droplet frequency will be too slow, the force sensing module 471 will not detect the downward force signal or the interval between detected force signals will be too long. The judgment criteria are set manually.

[0061] Under normal circumstances, the force sensing module 471 can detect a force signal equal to the number of brush heads 47 at a time. If the number of force signals is less than the number of brush heads 47, it indicates that the internal water flow channel area of ​​the dripper 4 is small, so that the volume of each falling water droplet cannot completely cover all brush heads 47. Alternatively, the dripper 424 may be partially blocked, causing some brush heads 47 to be encased in blockage, making it impossible to detect the falling force of the water droplets. In this case, it should be compared with the pressure signal detected by the pressure sensing module, and a critical pressure value P should be set. The detected real-time pressure signal is p.

[0062] When p≥P, the internal pressure of the dripper 4 is higher than the ideal range, the elastic diaphragm 48 has a large deformation, and the water flow channel area is small. At this time, the volume of each droplet cannot cover all the brush heads 47.

[0063] When p < P, the internal pressure of the dripper 4 is within the ideal range, and the deformation of the elastic diaphragm 48 will not have a significant impact on the area of ​​the water flow channel. At this time, the volume of each water droplet can cover all the brush heads 47.

[0064] Based on the above, if p < P, and the number of force signals detected by the force sensing module 471 at one time is less than the number of brush heads 47, then the surface drip head 424 will be partially blocked. The degree of blockage is inversely proportional to the number of force signals; that is, the more severe the blockage of the drip head 424, the more brush heads 47 will be covered by the blockage, and the fewer force signals can be detected.

[0065] If p ≥ P, then whether or not water droplets fall per unit time is used as the basis for judging blockage.

[0066] For the clogged dripper 4, the following methods are attempted to clear it: If the flow detection component 5 detects that the flow rate inside the dripper 4 is too high, resulting in excessive pressure on the upper side of the elastic diaphragm 48, and thus the water flow channel area is too small, corresponding to a situation where p ≥ P and no water droplets are detected, then valve 2 491 is opened to reduce the pressure difference between the upper and lower sides of the elastic diaphragm 48, thereby reducing the deformation of the elastic diaphragm 48, increasing the water flow channel area, and increasing the flow rate. This attempts to use high-flow irrigation water to break through the clogged dripper 4 and achieve the desired clearing effect.

[0067] If the above operation fails, valve 441 is opened to draw water from dripper 4 into drive housing 43. The water flows out through round hole 431, temporarily replacing the irrigation function of dripper 424. At the same time, the water flow drives blade 46 to rotate the rotating ring 45, causing brush head 47 to rotate, thereby removing the blockage and loosening the blockage, effectively cleaning dripper 424. Furthermore, some water droplets flowing out of round hole 431 fall onto brush head 47 and spread along the surface of brush head 47 to the blockage, providing a wetting effect. If dripper 424 is blocked by dry soil, the water flow can moisten it, reducing the difficulty of unblocking.

[0068] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0069] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. An adjustable drip irrigation device for agricultural planting, comprising a water tank (1) and a main water pipe (2), characterized in that, The main water pipe (2) is provided with several sets of relatively distributed branch water pipes (3) at intervals, and several drippers (4) are provided on the branch water pipes (3). The dripper (4) includes a housing (42), a base plate (422) is provided at the lower end of the housing (42), a drive housing (43) is fixed on the lower side of the base plate (422), a cleaning component is rotatably provided inside the drive housing (43), a pipeline (44) is connected between the drive housing (43) and the housing (42), a valve (441) is provided at the connection between the pipeline (44) and the housing (42), and several round holes (431) are opened at the bottom of the drive housing (43). The cleaning assembly includes a rotating ring (45), with several blades (46) fixed on the upper circumference of the rotating ring (45) and several brush heads (47) connected to the lower circumference of the rotating ring (45). A force sensing module (471) is provided at the connection between the brush head (47) and the rotating ring (45). An elastic diaphragm (48) is provided inside the housing (42). The side of the elastic diaphragm (48) facing the first pipe (44) is set as a water flow channel. The other side of the elastic diaphragm (48) is set as a second pipe (49). The two ends of the second pipe (49) are located on the upper side and the lower side of the elastic diaphragm (48) respectively. A valve (491) is provided at the connection of the second pipe (49) on the upper side of the elastic diaphragm (48). The base plate (422) is provided with a water outlet (423), and the water outlet (423) is connected to a drip head (424). The inward end of the brush head (47) extends into the water outlet range of the drip head (424). When the drip head (424) is in normal drip irrigation state, the falling water droplets bring downward impact force to the brush head (47) and are detected by the force sensing module (471). The presence or absence of the force signal determines whether there is a blockage, and the water flow is adjusted according to the frequency of the force signal.

2. The adjustable drip irrigation device for agricultural planting according to claim 1, characterized in that, The elastic diaphragm (48) deforms according to the pressure state inside the shell (42). When water flows into the shell (42), the water pressure causes the elastic diaphragm (48) to deform. When the water pressure is high, the pressure on the elastic diaphragm (48) increases, causing it to contract inward, that is, bend towards the outlet (423), reducing the cross-sectional area of ​​the water flow channel and thus reducing the flow rate. Conversely, when the water pressure is low, the elastic diaphragm (48) returns to its original shape, increasing the area of ​​the water flow channel and ensuring sufficient water output. The second pipeline (49) is used to balance the upper and lower pressures of the elastic diaphragm (48). By opening the second valve (491), water is directly introduced from the upper side of the elastic diaphragm (48) to the lower side of the elastic diaphragm (48), reducing the pressure difference between the upper and lower sides of the elastic diaphragm (48) and thus reducing the deformation of the elastic diaphragm (48).

3. The adjustable drip irrigation device for agricultural planting according to claim 2, characterized in that, The housing (42) is provided with a flow detection component (5). The flow detection component (5) includes a connecting plate (51). Several springs (52) are fixed on the connecting plate (51). The other end of the springs (52) is connected to a pressure cover (53). The pressure cover (53) slides with the connecting plate (51). A pressure sensing module is provided at the connection between the connecting plate (51) and the springs (52).

4. The adjustable drip irrigation device for agricultural planting according to claim 3, characterized in that, A guide plate (6) is provided at the junction of the main water pipe (2) and the branch water pipe (3). The guide plate (6) is set vertically on both sides and has an arc at the connection. One side of the guide plate (6) faces the corresponding branch water pipe (3), and the other side of the guide plate (6) faces the direction of fluid flow in the main water pipe (2).

5. The adjustable drip irrigation device for agricultural planting according to claim 4, characterized in that, The branch water pipe (3) is rotatably provided with a rotating shaft (31) on one side relative to the guide plate (6). Several blades (32) are arranged around the surface of the rotating shaft (31). The other end of the blades (32) is inclined toward the main water pipe (2). One end of the rotating shaft (31) extends out of the branch water pipe (3) and is provided with a pointer (33). A visual detection module (21) is provided between the main water pipe (2) and each group of branch water pipes (3) to monitor the rotation state of the pointer (33).

6. The adjustable drip irrigation device for agricultural planting according to claim 1, characterized in that, A water pump (7) is installed at the connection between the water tank (1) and the main water pipe (2).

7. The adjustable drip irrigation device for agricultural planting according to claim 6, characterized in that, The water tank (1) is provided with an inlet pipe (11) on the upper side. The water tank (1) is provided with a filter assembly. The filter assembly includes a boss (81). The boss (81) includes a platform (811) and a plane (812). Several filter holes (82) are opened on the plane (812) for filtering irrigation water. The platform (811) is rotatably provided with a rotating shaft (83). One end of the rotating shaft (83) is connected to a motor (84). A blade (85) is connected to the rotating shaft (83).

8. The adjustable drip irrigation device for agricultural planting according to claim 7, characterized in that, The blade (85) is configured to match the shape of the platform (811) and the plane (812), and a scraper (86) is provided at one end of the blade (85) located on the plane (812).

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