A water and fertilizer integrated device for drip irrigation of corn cultivation

Abstract

This invention discloses a drip irrigation and fertigation device for corn cultivation, relating to the field of drip irrigation technology for corn cultivation. It includes a headworks structure and a drip irrigation mechanism. The drip irrigation mechanism comprises an irrigation pipe, a filter structure, and a drip irrigation assembly. The drip irrigation assembly includes a drip irrigation pipe, a drip irrigation structure, an auxiliary structure, and a rotating structure. The irrigation pipe, drip irrigation pipe, and drip irrigation structure work together to drip irrigate corn plants. The rotating structure, connecting rod, auxiliary block, and cleaning component work together to clean impurities inside the drip irrigation head. The rotating impeller, rotating ring, rotating support block, connecting block, and cleaning roller brush work together to clean impurities in the connecting pipe. These impurities, cleaned from the drip irrigation structure, are then discharged through the drip inlet, reducing the frequency of clogging, alleviating the workload of workers, and improving the drip irrigation effect of the drip irrigation and fertigation device.

Description

Technical Field

[0001] This invention belongs to the field of drip irrigation technology for corn cultivation, specifically a drip irrigation and fertilization integrated device for corn cultivation. Background Technology

[0002] Corn, also known as maize, is an annual herbaceous plant belonging to the genus *Zea* of the Poaceae family. It has significant agricultural and economic value. Corn cultivation is an agricultural technology system that uses corn, an annual herbaceous plant of the genus *Zea*, as the object of cultivation, and achieves high-yield, high-quality, and high-efficiency production through systematic agronomic measures. Drip irrigation and fertilization integration devices are modern agricultural equipment that combine irrigation and fertilization. They use a pressure system to dissolve soluble fertilizers in irrigation water and utilize a pipeline network and drip irrigation devices to precisely and evenly deliver the water-fertilizer mixture to the root zone of the crop. Corn cultivation requires the use of drip irrigation and fertilization integration devices; therefore, there is a need for a drip irrigation and fertilization integration device for corn cultivation.

[0003] Existing drip irrigation and fertigation systems for corn cultivation have certain drawbacks. These systems typically use a headworks structure, drip irrigation pipes, and a drip irrigation system to irrigate corn plants. However, because corn cultivation requires drip irrigation with a fertigation solution composed of multiple fertilizers, chemical reactions occur when these fertilizers are mixed, producing precipitates. Furthermore, impurities in the drip irrigation water can easily clog the system, requiring disassembly and cleaning by workers. This increases the workload for staff and reduces the effectiveness of the drip irrigation system, failing to meet user needs. Summary of the Invention

[0004] The present invention aims to solve the technical problems existing in the prior art; to this end, the present invention proposes a drip irrigation and fertigation device for corn cultivation.

[0005] A drip irrigation and fertigation device for corn cultivation includes: a head hub structure and a drip irrigation mechanism connected to the head hub structure and used for corn cultivation; the drip irrigation mechanism includes an irrigation pipe connected to the head hub structure, several sets of filter structures detachably installed on the irrigation pipe, and a drip irrigation component detachably connected to the filter structures for drip irrigation of corn plants; the head hub structure is capable of introducing external water sources into the irrigation pipe for drip irrigation and fertigation of corn; the drip irrigation component includes drip irrigation pipes symmetrically arranged on the filter structure, several sets of drip irrigation structures detachably installed on the drip irrigation pipes for drip irrigation of corn plants, an auxiliary structure rotatably arranged inside the drip irrigation structure for auxiliary drip irrigation, and a rotating structure arranged inside the drip irrigation pipe for controlling the rotation of the auxiliary structure; the rotating structure can control the rotation of the auxiliary structure within the drip irrigation structure and clean impurities inside the drip irrigation structure, preventing the drip irrigation structure from being blocked and thus reducing the drip irrigation effect.

[0006] As a further aspect of the present invention: the drip irrigation structure includes a connecting pipe detachably fixed to the drip irrigation pipe and a drip irrigation head detachably fixed to the bottom end of the connecting pipe; the auxiliary structure is movably disposed inside the drip irrigation head; the top end of the connecting pipe extends into the interior of the drip irrigation pipe and is provided with a retaining ring connected to the inner wall of the drip irrigation pipe; the bottom end face of the drip irrigation head is provided with a plurality of sets of drip irrigation ports in a circular array, and the drip irrigation pipe introduces water and fertilizer solution into the drip irrigation head through the connecting pipe and drips it from the drip irrigation ports.

[0007] As a further aspect of the present invention: the auxiliary structure includes an auxiliary block rotatably disposed inside the drip head and several sets of cleaning components arranged in a circular array on the outer wall of the auxiliary block to clean impurities inside the drip head; the top of the auxiliary block is provided with a connecting rod that passes through the connecting pipe and is coaxially connected to the rotating structure; the auxiliary block is configured as a cylindrical structure; the outer wall of the auxiliary block is provided with a mounting base that is detachably fixed to the cleaning components; the cleaning components are configured as flexible scrapers for cleaning the inner wall of the drip head.

[0008] As a further aspect of the present invention: the rotating structure includes a rotating impeller connected to the connecting rod and a rotating ring detachably disposed in the middle of the outer wall of the connecting rod and rotatably disposed inside the connecting pipe; the drip irrigation assembly also includes a rotating support block disposed inside the connecting pipe and providing rotational support for the rotating ring, and several sets of connecting blocks disposed on the outer wall of the rotating support block and connected to the inner wall of the connecting pipe, the connecting blocks being configured as a fan-shaped structure, and the rotating ring having a rotating groove that fits against the rotating support block; the outer wall of the rotating ring is rotatably arranged in a circular array with several sets of cleaning rollers for cleaning impurities on the inner wall of the connecting pipe.

[0009] As a further aspect of the present invention, the drip irrigation mechanism further includes a connecting member disposed on the irrigation pipe and connected to the filter structure and the drip irrigation pipe respectively, and an installation head symmetrically disposed at both ends of the filter structure and detachably connected to the drip irrigation pipe respectively.

[0010] As a further aspect of the present invention: the filter structure includes a filter square tube detachably fixed to the connecting member, filter plates symmetrically and movably disposed inside the filter square tube, and buffer springs respectively connected to the inner wall of the filter square tube and the outer surface of the filter plates. The filter plates are provided with a plurality of filter holes. When impurities adhering to the filter plates clog the filter holes, water and fertilizer entering the drip irrigation pipe will squeeze the filter plates, causing the filter plates to squeeze the springs. The drip irrigation mechanism also includes a plurality of cleaning components disposed in the filter square tube to clean the impurities adhering to the filter plates. The outer wall of the filter plates is in contact with the inner wall of the filter square tube. The buffer springs enable the filter plates to move horizontally inside the filter square tube. Drainage pipes are symmetrically installed on the outer surface of the filter square tube, and a first control valve is provided on the drainage pipes.

[0011] As a further aspect of the present invention: the cleaning assembly includes several sets of cleaning scrapers movably disposed on the filter plate and attached to the surface of the filter plate; several sets of transmission structures symmetrically disposed inside the filter plate and controlling the cleaning scrapers to move up and down; and several sets of drive structures symmetrically disposed on the inner wall of the filter square tube and controlling the transmission structures to operate; the filter plate has a moving groove matching the drive structure; the cross-section of the filter plate is in the shape of a "["; the cleaning scrapers can move up and down on the filter plate to clean impurities adhering to the outer surface of the filter plate; when the filter plate compresses the spring, the drive structure controls the cleaning scrapers to move up and down through the transmission structure.

[0012] As a further aspect of the present invention: the driving structure includes a driving bar fixedly disposed on the inner wall of the filter square tube and a plurality of sets of toothed blocks equally spaced on the inner side of the driving bar and meshing with the transmission structure; the driving bar is provided with a driving groove for matching the transmission structure.

[0013] As a further embodiment of the present invention: the transmission structure includes a transmission gear rotatably disposed inside the filter plate and meshing with a plurality of sets of tooth blocks, and a transmission rack disposed outside the drive bar and meshing with the transmission gear; the transmission rack is provided with a fixing block connected to the cleaning scraper, and one end of the transmission gear extends into the drive groove and meshes with the tooth block.

[0014] As a further embodiment of the present invention: the head hub structure includes a pumping structure connected to an external water source and having a filtration function, a filter tank device connected to the pumping structure and filtering the external water source, and a fertilizer mixing system connected to the filter tank device. The pumping structure includes a pump, a pumping pipe connected to the pump, and a filter pipe head installed at one end of the pumping pipe. The filter tank device includes a tank body, a first drive motor detachably installed on the upper end of the tank body, a filter screen disposed inside the tank body and filtering the water source, and a filter scraper connected to the first drive motor and cleaning impurities from the filter screen. The fertilizer mixing system includes several interconnected fertilizer mixing tanks. The system includes a second drive motor detachably installed on the upper end of the fertilizer mixing tank and a stirring and mixing component rotatably disposed inside the fertilizer mixing tank and connected to the second drive motor. A feeding pipe is provided at the upper end of the fertilizer mixing tank. A sludge discharge pipe is provided on the filter tank and the fertilizer mixing system. A pressurized water supply device connected to an irrigation pipe is provided on the fertilizer mixing system. The pressurized water supply device has water supply pipes connected to both the fertilizer mixing tank and the irrigation pipe. A second control valve is provided on the water supply pipes. The filter tank has a guide pipe connected to the pressurized water supply device and a third control valve on the guide pipe. All three control valves—the third, second, and first—can be solenoid valves.

[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) The present invention uses a drip irrigation mechanism, irrigation pipe, drip irrigation pipe and drip irrigation structure to drip irrigate corn plants. The rotating structure, connecting rod, auxiliary block and cleaning parts are used together to clean the internal impurities of the drip irrigation head. The rotating impeller, rotating ring, rotating support block, connecting block and cleaning roller brush are used together to clean the impurities in the connecting pipe. Thus, the impurities cleaned in the drip irrigation structure are discharged through the drip irrigation port, thereby reducing the number of times the drip irrigation structure is blocked, reducing the labor intensity of the workers and improving the drip irrigation effect of the drip irrigation water and fertilizer integration device.

[0016] (2) The present invention, through the setting of the filter structure and cleaning components, the filter square tube, filter plate and buffer spring are used together to filter the drip irrigation liquid entering the drip irrigation pipe, reducing the number of times the drip irrigation structure is blocked. The buffer spring, cleaning scraper, transmission structure and drive structure are used together to clean the impurities adhering to the outer surface of the filter plate during the flow of the drip irrigation liquid, thereby improving the use effect of the filter structure. The sewage pipe and the first control valve are used together to remove the dirt in the filter square tube. There is no need to disassemble and clean the filter structure, reducing the labor intensity of the workers and improving the use effect of the drip irrigation water and fertilizer integration device. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the present invention.

[0018] Figure 2 This is a partial structural diagram of the drip irrigation component in this invention.

[0019] Figure 3 This is a cross-sectional view of the drip irrigation component in this invention.

[0020] Figure 4 This is an exploded view of the drip irrigation component in this invention.

[0021] Figure 5 This is a partial structural diagram of the rotating ring and rotating support block in this invention.

[0022] Figure 6 This is a partial structural diagram of the cleaning component in this invention.

[0023] Figure 7 This is a partial structural diagram of the transmission structure and drive structure in this invention.

[0024] In the diagram: 1. Headwork structure; 2. Irrigation pipe; 3. Filter structure; 4. Drip irrigation pipe; 5. Drip irrigation structure; 6. Auxiliary structure; 7. Rotating structure; 8. Connecting pipe; 9. Drip head; 10. Retaining ring; 11. Drip inlet; 12. Auxiliary block; 13. Cleaning component; 14. Connecting rod; 15. Rotating impeller; 16. Rotating ring; 17. Rotating support block; 18. Connecting block; 19. Cleaning roller brush; 20. Connecting component; 21. Installation. 21. Head; 22. Filter square tube; 23. Filter plate; 24. Cleaning scraper; 25. Transmission structure; 26. Drive structure; 27. Drive bar; 28. Gear block; 29. ​​Transmission gear; 30. Transmission rack; 31. Fixing block; 32. Pumping structure; 33. Filter tank equipment; 34. Fertilizer mixing system; 35. Pressurized water supply equipment; 36. Buffer spring; 37. Mounting base; 38. Sewage pipe; 39. First control valve; 40. Water guide pipe. Detailed Implementation

[0025] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1 Please see Figure 1 - Figure 5This application provides a drip irrigation and fertigation device for corn cultivation, comprising: a head hub structure 1 and a drip irrigation mechanism connected to the head hub structure 1 for corn cultivation; the drip irrigation mechanism includes an irrigation pipe 2 connected to the head hub structure 1, several sets of filter structures 3 detachably installed on the irrigation pipe 2, and a drip irrigation component detachably connected to the filter structures 3 for drip irrigation of corn plants; the head hub structure 1 is capable of introducing external water sources into the irrigation pipe 2 for drip irrigation and fertigation of corn; the drip irrigation component includes drip irrigation pipes 4 symmetrically arranged on the filter structures 3, several sets of drip irrigation structures 5 detachably installed on the drip irrigation pipes 4 for drip irrigation of corn plants, an auxiliary structure 6 rotatably arranged inside the drip irrigation structure 5 for auxiliary drip irrigation of the drip irrigation structure 5, and a rotating structure 7 arranged inside the drip irrigation pipe 4 for controlling the rotation of the auxiliary structure 6; the rotating structure 7 can control the auxiliary structure 6 to rotate within the drip irrigation structure 5 and clean impurities inside the drip irrigation structure 5, preventing the drip irrigation structure 5 from being blocked, thereby reducing the drip irrigation effect.

[0027] In this embodiment, the water-fertilizer solution for corn cultivation is prepared through the head hub structure 1, and the water-fertilizer solution is introduced into the drip irrigation pipe 4 through the irrigation pipe 2. The filter structure 3 filters the water-fertilizer solution, and the drip irrigation structure 5 can drip irrigation the corn plants with the water-fertilizer solution. When the water-fertilizer solution flows in the drip irrigation pipe 4, it drives the rotating structure 7 to rotate, so that the rotating structure 7 drives the auxiliary structure 6 to clean the impurities in the drip irrigation structure 5.

[0028] In this invention, the drip irrigation structure 5 includes a connecting pipe 8 detachably fixed to the drip irrigation pipe 4 and a drip irrigation head 9 detachably fixed to the bottom end of the connecting pipe 8; the auxiliary structure 6 is movably disposed inside the drip irrigation head 9; the top end of the connecting pipe 8 extends into the interior of the drip irrigation pipe 4 and is provided with a retaining ring 10 connected to the inner wall of the drip irrigation pipe 4; the bottom end face of the drip irrigation head 9 is provided with a plurality of sets of drip irrigation ports 11 in a circular array, and the drip irrigation pipe 4 introduces water and fertilizer solution into the drip irrigation head 9 through the connecting pipe 8 and drips it from the drip irrigation ports 11.

[0029] In this embodiment, the fertilizer solution enters the drip head 9 through the connecting pipe 8 and drips from the drip outlet 11.

[0030] In this invention, the auxiliary structure 6 includes an auxiliary block 12 rotatably disposed inside the drip head 9 and several sets of cleaning components 13 arranged in a circular array on the outer wall of the auxiliary block 12 to clean impurities inside the drip head 9; the top of the auxiliary block 12 is provided with a connecting rod 14 that passes through the connecting pipe 8 and is coaxially connected to the rotating structure 7; the auxiliary block 12 is configured as a cylindrical structure; the outer wall of the auxiliary block 12 is provided with a mounting base 37 that is detachably fixed to the cleaning component 13; the cleaning component 13 is configured as a flexible scraper for cleaning the inner wall of the drip head 9.

[0031] In this invention, the rotating structure 7 includes a rotating impeller 15 connected to the connecting rod 14 and a rotating ring 16 detachably disposed in the middle of the outer wall of the connecting rod 14 and rotatably disposed inside the connecting pipe 8; the drip irrigation assembly also includes a rotating support block 17 disposed inside the connecting pipe 8 and providing rotational support for the rotating ring 16, and several sets of connecting blocks 18 disposed on the outer wall of the rotating support block 17 and connected to the inner wall of the connecting pipe 8. The connecting blocks 18 are configured as fan-shaped structures, and the rotating ring 16 has a rotating groove that fits against the rotating support block 17; the outer wall of the rotating ring 16 is rotatably arranged in a circular array with several sets of cleaning roller brushes 19 for cleaning impurities on the inner wall of the connecting pipe 8.

[0032] In this embodiment, when the water and fertilizer solution flows in the drip irrigation pipe 4, the water and fertilizer solution drives the rotating impeller 15 to rotate, which in turn drives the connecting rod 14 to rotate. The connecting rod 14 then drives the rotating ring 16 to rotate on the rotating support block 17, which in turn drives the cleaning roller brush 19 to rotate. The cleaning roller brush 19 cleans the impurities in the connecting pipe 8. The rotation of the connecting rod 14 drives the auxiliary block 12 to rotate, which in turn drives the cleaning component 13 to rotate, which cleans the impurities inside the drip irrigation head 9.

[0033] The drip irrigation mechanism of the present invention also includes a connecting member 20 disposed on the irrigation pipe 2 and connected to the filter structure 3 and the drip irrigation pipe 4 respectively, and an installation head 21 symmetrically disposed at both ends of the filter structure 3 and detachably connected to the drip irrigation pipe 4 respectively.

[0034] Example 2 Reference Figure 1 - Figure 3 and Figure 6 - Figure 7 This is the second embodiment of the present invention. In this embodiment, the filter structure 3 includes a filter square tube 22 detachably fixed to the connecting member 20, filter plates 23 symmetrically and movably disposed inside the filter square tube 22, and buffer springs 36 connected to the inner wall of the filter square tube 22 and the outer surface of the filter plates 23 respectively. The filter plates 23 are provided with several sets of filter holes. When impurities adhering to the filter plates 23 block the filter holes, water and fertilizer enter the drip irrigation pipe 4 and squeeze the filter plates 23, causing the filter plates 23 to squeeze the springs. The drip irrigation mechanism also includes several sets of cleaning components disposed in the filter square tube 22 to clean the impurities adhering to the filter plates 23. The outer wall of the filter plates 23 is in contact with the inner wall of the filter square tube 22. The buffer springs 36 enable the filter plates 23 to move horizontally inside the filter square tube 22. Drainage pipes 38 are symmetrically installed on the outer surface of the filter square tube 22, and a first control valve 39 is provided on the drainage pipes 38.

[0035] In this embodiment, the fertigation solution enters the filter square tube 22 through the irrigation pipe 2 and the connecting piece 20, and then enters the drip irrigation pipe 4 through the filter plate 23. The filter plate 23 filters impurities and residual fertilizer sediment particles in the fertigation solution. When impurities adhere to the filter plate 23, the impact force of the fertigation solution on the filter plate 23 increases, thereby squeezing the buffer spring 36. The buffer spring 36 is subjected to the squeezing force, causing the filter plate 23 to move back and forth, thereby vibrating away some of the impurities on the filter plate 23.

[0036] The cleaning assembly includes several sets of cleaning scrapers 24 that are movably mounted on the filter plate 23 and attached to the surface of the filter plate 23; several sets of transmission structures 25 that are symmetrically arranged inside the filter plate 23 and control the lifting and lowering movement of the cleaning scrapers 24; and several sets of drive structures 26 that are symmetrically arranged on the inner wall of the filter square tube 22 and control the operation of the transmission structures 25. The filter plate 23 has a moving groove that matches the drive structure 26. The cross-section of the filter plate 23 is in the shape of a "[" and the cleaning scrapers 24 can move up and down on the filter plate 23 to clean the impurities adhering to the outer surface of the filter plate 23. When the filter plate 23 compresses the spring, the drive structure 26 controls the lifting and lowering of the cleaning scrapers 24 through the transmission structure 25.

[0037] In this embodiment, when the filter plate 23 moves horizontally, the distance between the filter plate 23 and the drive structure 26 changes, causing the drive structure 26 to drive the cleaning scraper 24 to move through the transmission structure 25. This allows the cleaning scraper 24 to clean the impurities on the filter plate 23, thus unblocking the filter holes of the filter plate 23. Under the action of the buffer spring 36, the filter plate 23 moves back and forth, thereby improving the cleaning effect of the cleaning scraper 24.

[0038] In this invention, the drive structure 26 includes a drive bar 27 fixedly disposed on the inner wall of the filter square tube 22 and a plurality of tooth blocks 28 equally spaced on the inner side of the drive bar 27 and meshing with the transmission structure 25; the drive bar 27 is provided with a drive groove for matching the transmission structure 25.

[0039] In this invention, the transmission structure 25 includes a transmission gear 29 rotatably disposed inside the filter plate 23 and meshing with several sets of toothed blocks 28, and a transmission rack 30 disposed outside the drive bar 27 and meshing with the transmission gear 29; the transmission rack 30 is provided with a fixing block 31 connected to the cleaning scraper 24, and one end of the transmission gear 29 extends into the drive groove and meshes with the toothed blocks 28.

[0040] In this embodiment, the filter plate 23 moves horizontally, causing the toothed block 28 on the drive bar 27 to mesh with the transmission gear 29, which in turn causes the transmission gear 29 to drive the transmission rack 30 to move up and down. The transmission rack 30 then drives the cleaning scraper 24 to move via the fixed block 31, allowing the cleaning scraper 24 to filter impurities on the filter plate 23.

[0041] The first hub structure 1 of this invention includes a pumping structure 32 connected to an external water source and having a filtration function, a filter tank device 33 connected to the pumping structure 32 and filtering the external water source, and a fertilizer mixing system 34 connected to the filter tank device 33. The pumping structure 32 includes a pump, a pumping pipe connected to the pump, and a filter pipe head installed at one end of the pumping pipe. The filter tank device 33 includes a tank body, a first drive motor detachably installed on the upper part of the tank body, a filter screen installed inside the tank body and filtering the water source, and a filter scraper connected to the first drive motor and cleaning impurities from the filter screen. The fertilizer mixing system 34 includes several interconnected fertilizer mixing tanks and a detachable... A second drive motor is installed at the top of the fertilizer mixing tank, and a stirring and mixing component is installed inside the fertilizer mixing tank and connected to the second drive motor. A feeding pipe is provided at the top of the fertilizer mixing tank. A sludge discharge pipe is provided on the filter tank equipment 33 and the fertilizer mixing system 34. A pressurized water supply equipment 35 connected to the irrigation pipe 2 is provided on the fertilizer mixing system 34. A water supply pipe connected to the fertilizer mixing tank and the irrigation pipe 2 is provided on the pressurized water supply equipment 35. A second control valve is provided on the water supply pipe. A water guide pipe 40 connected to the pressurized water supply equipment 35 and a third control valve are provided on the water guide pipe 40. The third control valve, the second control valve and the first control valve 39 can all be solenoid valves.

[0042] In this embodiment, when the corn plants are irrigated by drip irrigation, the pumping structure 32 is activated to pump external water into the filter tank equipment 33 for filtration, and the filtered water is introduced into the fertilizer mixing system 34 to prepare the water and fertilizer solution for the corn drip irrigation. The water and fertilizer solution is then introduced into the irrigation pipe 2 through the pressurized water supply equipment 35, so that the irrigation pipe 2, the filter structure 3, the drip irrigation pipe 4, the drip irrigation structure 5, the auxiliary structure 6 and the rotating structure 7 work together to drip irrigate the pre-buried plants. When drip irrigation is applied to corn plants, the pumping structure 32 is activated to draw external water into the filter tank 33 for filtration. The filtered drip irrigation water is then introduced into the pressurized water supply device 35 through the water pipe 40, and then into the irrigation pipe 2 through the pressurized water supply device 35. This allows the irrigation pipe 2, filter structure 3, drip irrigation pipe 4, drip irrigation structure 5, auxiliary structure 6, and rotating structure 7 to work together to drip irrigate the pre-buried plants.

[0043] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. A drip irrigation and fertigation system for corn cultivation, comprising: The head hub structure (1) and the drip irrigation mechanism connected to the head hub structure (1) and used for maize cultivation; The drip irrigation mechanism includes an irrigation pipe (2) connected to the head hub structure (1), several sets of filter structures (3) detachably installed on the irrigation pipe (2), and a drip irrigation component detachably connected to the filter structures (3) and drip irrigating the corn plants. The drip irrigation assembly includes drip irrigation pipes (4) symmetrically arranged on the filter structure (3), several sets of drip irrigation structures (5) detachably installed on the drip irrigation pipes (4) for drip irrigation of corn plants, an auxiliary structure (6) rotatably arranged inside the drip irrigation structure (5) for auxiliary drip irrigation of the drip irrigation structure (5), and a rotating structure (7) arranged inside the drip irrigation pipes (4) for controlling the rotation of the auxiliary structure (6). The filter structure (3) includes a filter square tube (22) that is detachably fixed to the connecting member (20) and filter plates (23) that are symmetrically and movably arranged inside the filter square tube (22). The drip irrigation mechanism also includes several cleaning components that are set in the filter square tube (22) and clean the impurities adhering to the filter plate (23); The cleaning assembly includes several sets of cleaning scrapers (24) that are movably disposed on the filter plate (23) and attached to the surface of the filter plate (23), several sets of transmission structures (25) that are symmetrically disposed inside the filter plate (23) and control the cleaning scrapers (24) to move up and down, and several sets of drive structures (26) that are symmetrically disposed on the inner wall of the filter square tube (22) and control the transmission structures (25) to work. The drive structure (26) includes a drive bar (27) fixedly installed on the inner wall of the filter square tube (22) and several sets of toothed blocks (28) equally spaced on the inner side of the drive bar (27) and meshing with the transmission structure (25). The transmission structure (25) includes a transmission gear (29) rotatably disposed inside the filter plate (23) and meshing with a number of sets of tooth blocks (28) and a transmission rack (30) disposed outside the drive bar (27) and meshing with the transmission gear (29).

2. The drip irrigation and fertigation device for corn cultivation according to claim 1, characterized in that, The drip irrigation structure (5) includes a connecting pipe (8) that is detachably fixed to the drip irrigation pipe (4) and a drip irrigation head (9) that is detachably fixed to the bottom end of the connecting pipe (8). The auxiliary structure (6) is movably disposed inside the drip head (9); The top end of the connecting pipe (8) extends into the interior of the drip irrigation pipe (4) and is provided with a retaining ring (10) connected to the inner wall of the drip irrigation pipe (4). The bottom end face of the drip head (9) is arranged in a circular array with several sets of drip inlets (11) for drip irrigation.

3. The drip irrigation and fertigation device for corn cultivation according to claim 2, characterized in that, The auxiliary structure (6) includes an auxiliary block (12) that is rotatably disposed inside the drip head (9) and several sets of cleaning components (13) that are arranged in a circular array on the outer wall of the auxiliary block (12) and clean impurities inside the drip head (9). The top of the auxiliary block (12) is provided with a connecting rod (14) that passes through the connecting pipe (8) and is coaxially connected to the rotating structure (7).

4. The drip irrigation and fertigation device for corn cultivation according to claim 3, characterized in that, The rotating structure (7) includes a rotating impeller (15) connected to the connecting rod (14) and a rotating ring (16) detachably disposed in the middle of the outer wall of the connecting rod (14) and rotatably disposed inside the connecting pipe (8). The drip irrigation assembly also includes a rotating support block (17) disposed inside the connecting pipe (8) and providing rotational support for the rotating ring (16), and several sets of connecting blocks (18) disposed on the outer wall of the rotating support block (17) and connected to the inner wall of the connecting pipe (8). The outer wall of the rotating ring (16) is arranged in a circular array with several sets of cleaning rollers (19) for cleaning impurities on the inner wall of the connecting pipe (8).

5. A drip irrigation and fertigation device for corn cultivation according to claim 4, characterized in that, The drip irrigation mechanism also includes a connecting piece (20) disposed on the irrigation pipe (2) and connected to the filter structure (3) and the drip irrigation pipe (4) respectively, and an installation head (21) symmetrically disposed at both ends of the filter structure (3) and detachably connected to the drip irrigation pipe (4) respectively.

6. A drip irrigation and fertigation device for corn cultivation according to claim 5, characterized in that, The filter structure (3) includes a buffer spring (36) that is connected to the inner wall of the filter square tube (22) and the outer surface of the filter plate (23), respectively.

7. A drip irrigation and fertigation device for corn cultivation according to claim 6, characterized in that, The filter plate (23) is provided with a movable groove that matches the drive structure (26); The cross-section of the filter plate (23) is in the shape of "[".

8. A drip irrigation and fertigation device for corn cultivation according to claim 7, characterized in that, The drive bar (27) has a drive groove for matching the transmission structure (25).

9. A drip irrigation and fertigation device for corn cultivation according to claim 8, characterized in that, The transmission rack (30) is provided with a fixing block (31) that is connected to the cleaning scraper (24).

10. A drip irrigation and fertigation device for corn cultivation according to claim 1, characterized in that, The head hub structure (1) includes a pumping structure (32) connected to an external water source and having a filtration function, a filter tank device (33) connected to the pumping structure (32) and filtering the external water source, and a fertilizer distribution system (34) connected to the filter tank device (33). The fertilizer distribution system (34) is equipped with a pressurized water supply device (35) connected to the irrigation pipe (2).

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