A pesticide spraying device based on a drip irrigation network

Abstract

The application discloses a pesticide spraying device based on a drip irrigation network, and belongs to the technical field of pesticide spraying. In order to solve the problem that the spraying structure usually adopts a fixed nozzle one-way spraying mode, but due to the natural drooping of the bottom of the leaf and the shielding of the branches and leaves and other factors, a blind area of pesticide spraying is easily formed, and it is not easy to effectively kill the insect eggs, insect pests and bacteria hidden in the back of the leaf, the application comprises a main pipe, a first electromagnetic valve is arranged on the main pipe, a water pressure sensor for detecting the water pressure value in the pipe network is mounted on the inner wall of the main pipe, a plurality of communication assemblies are uniformly communicated on one side of the main pipe, drip irrigation and spraying assemblies for root drip irrigation and leaf spraying double-mode pesticide spraying operation are arranged on the communication assemblies, the application can form a single-section closed pipe network cavity, the pesticide liquid crystals and residual impurities can be strongly washed by using high-pressure clean water, the segmented and automatic cleaning of each drip irrigation and spraying assembly of the whole drip irrigation pipe network can be realized, and the long-term stable operation of the device is ensured.

Description

Technical Field

[0001] This invention relates to the field of pesticide spraying technology, specifically to a pesticide spraying device based on a drip irrigation network. Background Technology

[0002] Greenhouses are the core carrier of modern agricultural planting, used for the cultivation of cash crops such as fruits, vegetables, flowers, and green plants. Pest and disease control is a key link to ensure stable and increased yields of greenhouse crops. The pesticide spraying device based on the drip irrigation network is an integrated spraying equipment that is upgraded from the existing standardized drip irrigation branch pipes and pipeline liquid supply system in the greenhouse. It can reuse the original drip irrigation water supply and liquid supply network without the need for large-scale renovation of greenhouse facilities. It effectively solves the industry problems of low efficiency, uneven spraying of pesticides, and high labor intensity of manual spraying. It is suitable for large-scale and routine pesticide spraying operations in various greenhouses.

[0003] Current pesticide spraying devices based on drip irrigation networks typically use a fixed nozzle unidirectional spraying mode. However, due to factors such as the natural drooping of leaves and the obstruction of branches and leaves, there are often blind spots in the spraying of pesticides. The pesticide adhesion rate at the bottom of the leaves is extremely low, making it difficult to effectively disinfect insect eggs, pests, and pathogens hidden on the underside of the leaves. This reduces the utilization rate of pesticides and the overall control effect of pests and diseases.

[0004] To address the above issues, a pesticide spraying device based on a drip irrigation network is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a pesticide spraying device based on a drip irrigation network. By using this invention, the problem that the spraying structure usually adopts a fixed nozzle unidirectional spraying mode, but due to factors such as the natural drooping of the leaves and the obstruction of branches and leaves, there are blind spots in the spraying of pesticides, and it is not easy to effectively disinfect insect eggs, pests and pathogens hidden on the back of the leaves.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A pesticide spraying device based on a drip irrigation network includes a main pipe with a first solenoid valve. A water pressure sensor for detecting the water pressure inside the pipe network is installed on the inner wall of the main pipe. Several connecting components are evenly connected to one side of the main pipe. A drip irrigation spraying component for dual-mode spraying operations of root drip irrigation and leaf spraying is installed on the connecting components. A dual-drive component is installed at the top of the drip irrigation spraying component. A first blocking component for blocking the bottom drip irrigation path and a second blocking component for blocking the top spraying path are arranged opposite each other inside the drip irrigation spraying component. A switching push component is installed inside the drip irrigation spraying component. The switching push component is fixedly connected to the lower movable end of the dual-drive component. A prying component for moving plant leaves is fixedly connected to the upper movable end of the dual-drive component. A folding spraying component for synchronously raising, lowering and folding with the prying component to complete leaf spraying is connected to the top of the drip irrigation spraying component. The folding spraying component is fixedly connected to the prying component. A push-pull blocking component is installed inside the drip irrigation spraying component.

[0007] Furthermore, the connecting component includes several branch pipes connected to the main pipe, and each of the branch pipes is equipped with a second solenoid valve.

[0008] Furthermore, the drip irrigation spraying assembly includes a first drip irrigation spraying seat, a second drip irrigation spraying seat, and a third drip irrigation spraying seat connected sequentially to the branch pipe. The bottom of the first drip irrigation spraying seat, the second drip irrigation spraying seat, and the third drip irrigation spraying seat are all provided with a plurality of drip irrigation holes, and the top of the first drip irrigation spraying seat, the second drip irrigation spraying seat, and the third drip irrigation spraying seat are all provided with a spraying port.

[0009] Furthermore, the dual-drive assembly includes a mounting frame fixedly connected to the top of the first drip irrigation spray seat, and a dual-axis electric push rod is installed inside the mounting frame.

[0010] Furthermore, the first sealing assembly includes a first limiting rod fixedly connected to the top of the inner wall of the first drip irrigation spray seat, a first sealing frame slidably connected to the outer wall of the first limiting rod, one side of the first sealing frame slidably fitting against the inner wall of the first drip irrigation spray seat, a first spring fixedly connected to the inner wall of the first sealing frame, and the other end of the first spring fixedly connected to the first limiting rod, and the first sealing frame is located directly below the spray nozzle.

[0011] Furthermore, the second sealing assembly includes a second limiting rod fixedly connected to the bottom of the inner wall of the first drip irrigation spray seat, a second sealing frame slidably connected to the outer wall of the second limiting rod, one side of the second sealing frame slidably fitting against the inner wall of the first drip irrigation spray seat, a second spring fixedly connected to the inner wall of the second sealing frame, and the other end of the second spring fixedly connected to the second limiting rod, and the second sealing frame is positioned directly above the drip irrigation hole.

[0012] Furthermore, the switching push assembly includes a guide rod fixedly connected to the lower movable end of the dual-axis electric push rod, a push rod slidably connected inside the guide rod, a third spring fixedly connected to the inner wall of the guide rod, and the other end of the third spring fixedly connected to the push rod. A rolling shaft is rotatably connected to one end of the push rod. A support plate is fixedly connected to the inner wall of the first drip irrigation spray seat, and a guide plate is fixedly connected to the other end of the support plate. Two vertical guide grooves and a V-shaped guide groove are respectively opened on one side of the guide plate. The two vertical guide grooves are respectively connected to both sides of the V-shaped guide groove. The rolling shaft is rotatably connected to the two vertical guide grooves and the V-shaped guide groove respectively.

[0013] Furthermore, the actuation assembly includes a lifting plate fixedly connected to the movable end of the dual-axis electric push rod, a lifting rod fixedly connected to the bottom of the lifting plate, and a connecting plate fixedly connected to the other end of the lifting rod. An inclined actuation frame is fixedly connected inside the connecting plate.

[0014] Furthermore, the folding spray assembly includes a corrugated telescopic frame fixedly connected to the top of the first drip irrigation spray seat. The corrugated telescopic frame is connected to the spray nozzle, and the top of the corrugated telescopic frame is fixedly connected to the connecting plate. Spray pipes are connected to both sides of the corrugated telescopic frame, and an atomizing nozzle is connected to one end of each spray pipe.

[0015] Furthermore, the push-pull sealing assembly includes a protective frame fixedly connected to the first drip irrigation spray seat, an electromagnet installed inside the protective frame, a first magnet installed inside the first sealing frame, and a second magnet installed inside the second sealing frame.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the cooperation between the dual drive components, the switching drive components, the first sealing components, and the second sealing components, the interlocking switching between the two operating modes of root drip irrigation and leaf spraying can be realized. At the same time, the device structure is simplified, the equipment production cost and the difficulty of later operation and maintenance are reduced, and the stability of equipment operation is improved. Through the cooperation between the dual drive component, the toggle component, and the folding spray component, the atomized spraying of the upper and lower sides of the leaves can be completed simultaneously while the toggle component flips up the crop leaves and opens the gaps between the leaves. This reduces the blind spots for spraying on the back of the leaves and improves the overall adhesion rate of the pesticide on the leaves and the control effect of pests and diseases. By cooperating with the push-pull sealing component, the connecting component, and the water pressure sensor, a single-section closed pipe network cavity can be formed. High-pressure clean water is used to forcefully flush away the crystallized and residual impurities of the liquid, realizing the segmented and automatic cleaning of each drip irrigation spray component of the entire drip irrigation network, ensuring the long-term stable operation of the device. By setting up the connecting components, the on / off status of a single branch pipe can be controlled individually. In conjunction with the controller, the on / off control of the pipeline network in sections and zones can be realized. This can achieve independent spraying operations in single or multiple areas, avoiding the waste of pesticide and insufficient pressure caused by synchronous operations across the entire area. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the overall structure of the present invention; Figure 3 for Figure 2 Enlarged view of point A; Figure 4 This is a partial cross-sectional structural diagram of the present invention; Figure 5 for Figure 4 Enlarged view of point B; Figure 6 for Figure 5 Enlarged view of point C; Figure 7 for Figure 5 Enlarged view of point D; Figure 8 for Figure 5 Enlarged view of point E; Figure 9 This is a schematic diagram of the switching drive component structure of the present invention; Figure 10 This is a cross-sectional structural diagram showing the connection relationship between the drip irrigation spraying assembly, the first sealing assembly, the second sealing assembly, and the push-pull sealing assembly of the present invention.

[0018] In the diagram: 1. Main pipe; 11. First solenoid valve; 12. Water pressure sensor; 2. Connecting assembly; 21. Branch pipe; 22. Second solenoid valve; 3. Drip irrigation spray assembly; 31. First drip irrigation spray holder; 32. Second drip irrigation spray holder; 33. Third drip irrigation spray holder; 34. Drip irrigation orifice; 35. Spray nozzle; 4. Dual drive assembly; 41. Mounting frame; 42. Dual-axis electric push rod; 5. First sealing assembly; 51. First limit rod; 52. First sealing frame; 53. First spring; 6. Second sealing assembly; 61. Second limit rod; 62. Second sealing frame; 63. Second spring; 7. Switching push assembly; 71. Guide rod; 72. Push rod; 73. Third spring; 74. Rolling shaft; 75. Support plate; 76. Guide plate; 77. Vertical guide groove; 78. V-shaped guide groove; 8. Toggle assembly; 81. Lifting plate; 82. Lifting rod; 83. Connecting plate; 84. Toggle frame; 9. Folding spray assembly; 91. Corrugated telescopic frame; 92. Spray pipe; 93. Atomizing nozzle; 10. Push-pull sealing assembly; 101. Protective frame; 102. Electromagnet; 103. First magnet block; 104. Second magnet block. Detailed Implementation

[0019] 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.

[0020] To address the technical problem that spraying systems typically employ a fixed-nozzle, unidirectional spraying pattern, but which often results in blind spots due to the natural drooping of leaves and foliage obstructing the spray, making it difficult to effectively eliminate insect eggs, pests, and pathogens hidden on the underside of leaves, such as... Figures 1-10 As shown, the following preferred technical solutions are provided: like Figure 1 As shown, a pesticide spraying device based on a drip irrigation network includes a main pipe 1, which is connected to an external pesticide supply pump and clean water supply equipment. The main pipe 1 can selectively deliver pesticide solution or clean water to the pipe network, providing a medium for spraying and self-cleaning operations. A controller is installed on one side of the main pipe 1 to control various electrical components. The controller is existing technology and is not shown in the figure. A first solenoid valve 11 is installed on the main pipe 1. A water pressure sensor 12 is installed on the inner wall of the main pipe 1 to detect the water pressure inside the pipe network. Several connecting components 2 are evenly connected to one side of the main pipe 1. Drip irrigation spraying components 3 for dual-mode spraying operations of root drip irrigation and leaf spraying are installed on the connecting components 2. Figure 3 As shown, the drip irrigation spraying assembly 3 is equipped with a dual drive assembly 4 on its top, such as... Figure 4 As shown, the drip irrigation spraying assembly 3 has a first sealing component 5 for blocking the bottom drip irrigation path and a second sealing component 6 for blocking the top spraying path, which are arranged opposite each other. The drip irrigation spraying assembly 3 also has a switching push component 7, which is fixedly connected to the lower movable end of the dual-drive assembly 4. Figure 3 As shown, the upper movable end of the dual drive component 4 is fixedly connected to a prying component 8 for prying plant leaves, and the top of the drip irrigation spraying component 3 is connected to a folding spraying component 9 for synchronously raising, lowering and folding with the prying component 8 to complete the spraying of pesticides on the leaves. The folding spraying component 9 is fixedly connected to the prying component 8.

[0021] During use, the pre-treated pesticide solution is pumped into the main pipe 1 by an external pesticide supply pump. When drip irrigation of the crop roots is required, the controller causes the lower movable end of the dual drive component 4 to drive the switching push component 7 to move upward, and simultaneously drives the first sealing component 5 to move upward, thus completely sealing the top spraying passage. At this time, the pesticide solution in the main pipe 1 enters several connecting components 2 and is directly discharged through the drip irrigation passage at the bottom of the drip irrigation spray component 3, soaking the soil around the crop roots. At the same time, the controller, in conjunction with the real-time detection of the water pressure sensor 12, keeps the output pressure of the external water supply pump in a stable low-pressure state, thereby realizing low-pressure drip irrigation of the crop roots. The pesticide solution slowly penetrates the soil, which can ensure that the crop roots fully absorb the pesticide solution, effectively prevent root diseases and pests, and avoid the problem of high-pressure water flow washing away the soil, causing the roots to be exposed and the pesticide solution to be lost, thus improving the uniformity and utilization rate of root application. When drip irrigation of crop leaves is required, the controller causes the lower movable end of the dual-drive component 4 to move the switching push component 7 downward, and simultaneously moves the second sealing component 6 downward, thus sealing the bottom drip irrigation passage. At this time, the pesticide liquid in the main pipe 1 enters several connecting components 2 and is discharged into the folding spray component 9 through the spraying passage at the top of the drip irrigation spray component 3. Simultaneously, the controller, in conjunction with the real-time detection of the water pressure sensor 12, dynamically adjusts the pressure of the external water supply pump to adapt to the spraying conditions. In addition, the controller causes the upper movable end of the dual-drive component 4 to move the toggle component 8 upward, and simultaneously moves the folding spray component 9. The folding spray component 9 gradually unfolds with the toggle stroke of the leaves. As the toggle component 8 flips up the crop leaves and opens the gaps between the leaves, the top and bottom sides of the leaves are simultaneously sprayed with atomized pesticide, realizing a stepped dynamic lifting and lowering spraying operation. Compared with the traditional fixed-point unidirectional spraying technology, it can reduce the blind spot of spraying on the back of the leaves and improve the overall pesticide adhesion rate and pest control effect.

[0022] Meanwhile, the dual drive component 4, in conjunction with the switching drive component 7, drives the first sealing component 5 and the second sealing component 6 to move respectively, which enables the interlocking switching between root drip irrigation and leaf spraying operation modes. At the same time, it simplifies the device structure, reduces equipment production costs and later maintenance difficulties, and improves the stability of equipment operation.

[0023] like Figure 4As shown, the drip irrigation spraying assembly 3 is equipped with a push-pull sealing assembly 10. After a period of use, due to the easy crystallization and accumulation of impurities in the pesticide solution, the spraying structure of the folded spraying assembly 9 and the drip irrigation channel at the bottom of the drip irrigation spraying assembly 3 may become blocked. Therefore, after a period of use, the controller enables the push-pull sealing assembly 10 to simultaneously drive the first sealing assembly 5 and the second sealing assembly 6 to move, so that the first sealing assembly 5 and the second sealing assembly 6 approach each other and fit tightly together, blocking the rear drainage passage of the connecting assembly 2. At the same time, the controller enables the valves of all other connecting assemblies 2 to close synchronously, forming a single-section closed pipe network cavity. Subsequently, through the controller and in conjunction with the real-time detection of the water pressure sensor 12, the external clean water supply equipment continuously pressurizes, causing the water pressure inside the closed pipe network to gradually increase. The high-pressure clean water forcefully flushes away the pesticide crystals and residual impurities in the spraying structure of the folded spraying assembly 9 and the drip irrigation channel at the bottom of the drip irrigation spraying assembly 3, achieving automatic unblocking and cleaning.

[0024] After the folded spraying component 9 in the first drip irrigation spraying component 3 near the main pipe 1 completes its high-pressure self-cleaning, the controller drives the push-pull sealing component 10 to simultaneously move the first sealing component 5 and the second sealing component 6, causing them to move away from each other. This seals the drip irrigation channel at the bottom and the spraying channel at the top of the drip irrigation spraying component 3, maintaining the sealing of the drip irrigation channel and the spraying channel. The same sealing and high-pressure self-cleaning operation is then repeated for the second drip irrigation spraying component 3 near the rear of the main pipe 1. This process is repeated segment by segment, achieving segmented and automatic cleaning of each drip irrigation spraying component 3 in the entire drip irrigation network. This ensures the long-term stable operation of the device and maintains a good spraying and drip irrigation effect.

[0025] like Figure 2 and Figure 3 As shown, the connecting component 2 includes several branch pipes 21 connected to the main pipe 1. Each branch pipe 21 is equipped with a second solenoid valve 22. The second solenoid valve 22 is used to individually control the on / off state of a single branch pipe 21. In conjunction with the controller, it realizes the segmented and zoned on / off control of the pipeline network. This can realize independent spraying operations in single or multiple areas, avoiding the waste of pesticide and insufficient pressure caused by synchronous operations across the entire area. At the same time, it can form a closed cavity during self-cleaning operations to ensure the pressure-locking cleaning effect.

[0026] like Figures 2-8 and Figure 10As shown, the drip irrigation spray assembly 3 includes a first drip irrigation spray seat 31, a second drip irrigation spray seat 32, and a third drip irrigation spray seat 33 connected sequentially to the branch pipe 21. In specific settings, multiple sets of the first drip irrigation spray seat 31, the second drip irrigation spray seat 32, and the third drip irrigation spray seat 33 can be set. For better illustration, only three sets are shown in the figure. Several drip irrigation holes 34 are opened through the bottom of the first drip irrigation spray seat 31, the second drip irrigation spray seat 32, and the third drip irrigation spray seat 33. Spray nozzles 35 are opened through the top of the first drip irrigation spray seat 31, the second drip irrigation spray seat 32, and the third drip irrigation spray seat 33.

[0027] like Figure 4 and Figure 5 As shown, the dual-drive assembly 4 includes a mounting frame 41 fixedly connected to the top of the first drip irrigation spray seat 31. A dual-axis electric actuator 42 is installed inside the mounting frame 41. The dual-axis electric actuator 42 is a dual-output independent drive electric actuator with a dual-axis independent controllable structure, which can control the two output shafts separately.

[0028] like Figure 5 , Figure 6 and Figure 10 As shown, the first sealing component 5 includes a first limiting rod 51 fixedly connected to the top of the inner wall of the first drip irrigation spray seat 31, a first sealing frame 52 slidably connected to the outer wall of the first limiting rod 51, one side of the first sealing frame 52 slidably fitting against the inner wall of the first drip irrigation spray seat 31, a first spring 53 fixedly connected to the inner wall of the first sealing frame 52, and the other end of the first spring 53 fixedly connected to the first limiting rod 51, and the first sealing frame 52 is located directly below the spray nozzle 35.

[0029] like Figure 5 , Figure 7 and Figure 10 As shown, the second sealing component 6 includes a second limiting rod 61 fixedly connected to the bottom of the inner wall of the first drip irrigation spray seat 31. A second sealing frame 62 is slidably connected to the outer wall of the second limiting rod 61. One side of the second sealing frame 62 is slidably attached to the inner wall of the first drip irrigation spray seat 31. A second spring 63 is fixedly connected to the inner wall of the second sealing frame 62, and the other end of the second spring 63 is fixedly connected to the second limiting rod 61. The second sealing frame 62 is located directly above the drip irrigation hole 34. The size and specifications of the first sealing frame 52 and the second sealing frame 62 match the diameter of the branch pipe 21. After the first sealing frame 52 and the second sealing frame 62 are attached to each other, they can completely block the drainage passage at the rear end of the branch pipe 21. The sealing surfaces of the first sealing frame 52 and the second sealing frame 62 are both covered with a fluororubber sealing layer, which can maintain wear resistance and sealing reliability under long-term pesticide immersion and frequent reciprocating opening and closing conditions.

[0030] like Figure 5 , Figure 8 and Figure 9As shown, the switching push assembly 7 includes a guide rod 71 fixedly connected to the lower movable end of the dual-axis electric push rod 42. A push rod 72 is slidably connected inside the guide rod 71. A third spring 73 is fixedly connected to the inner wall of the guide rod 71, and the other end of the third spring 73 is fixedly connected to the push rod 72. A rolling shaft 74 is rotatably connected to one end of the push rod 72. A support plate 75 is fixedly connected to the inner wall of the first drip irrigation spray seat 31, and a guide plate 76 is fixedly connected to the other end of the support plate 75. Two vertical guide grooves 77 and a V-shaped guide groove 78 are respectively opened on one side of the guide plate 76. The two vertical guide grooves 77 are respectively connected to both sides of the V-shaped guide groove 78. The rolling shaft 74 is rotatably connected to the two vertical guide grooves 77 and the V-shaped guide groove 78 respectively.

[0031] When the spraying operation is completed and the pipeline enters the high-pressure self-cleaning mode, the lower movable end of the dual-axis electric push rod 42 drives the push rod 72, the third spring 73 and the rolling shaft 74 to move synchronously. This causes the rolling shaft 74 to roll from the vertical guide groove 77 to the top of the V-shaped guide groove 78. At this time, the third spring 73 is in a compressed state, and one end of the push rod 72 is in a state that does not obstruct the first sealing frame 52 and the second sealing frame 62. This releases the mechanical limiting constraint on the first sealing component 5 and the second sealing component 6, allowing the first sealing frame 52 and the second sealing frame 62 to move freely towards or away from each other under the drive of the push-pull sealing component 10.

[0032] like Figure 4 and Figure 5 As shown, the actuation assembly 8 includes a lifting plate 81 fixedly connected to the movable end of the dual-axis electric push rod 42. A lifting rod 82 is fixedly connected to the bottom of the lifting plate 81, and a connecting plate 83 is fixedly connected to the other end of the lifting rod 82. An inclined actuation frame 84 is fixedly connected inside the connecting plate 83.

[0033] like Figure 4 and Figure 5 As shown, the folding spray assembly 9 includes a corrugated telescopic frame 91 fixedly connected to the top of the first drip irrigation spray base 31. The corrugated telescopic frame 91 is connected to the spray nozzle 35. The top of the corrugated telescopic frame 91 is fixedly connected to the connecting plate 83. Spray pipes 92 are connected to both sides of the corrugated telescopic frame 91. One end of the spray pipe 92 is connected to an atomizing nozzle 93.

[0034] During use, the pre-treated pesticide solution is pumped into the main pipe 1 by an external pesticide supply pump. When drip irrigation of crop roots is required, the controller causes the lower movable end of the dual-axis electric push rod 42 to drive the push rod 72, the third spring 73, and the rolling shaft 74 to move upward synchronously. This causes the outer wall of the push rod 72 to fit against the bottom of the first sealing frame 52, causing the first sealing frame 52 to move upward synchronously and stretch the first spring 53 until the first sealing frame 52 seals the spray nozzle 35, achieving complete sealing of the spray nozzle 35. At this time, the pesticide solution in the main pipe 1 enters several... The pesticide is discharged directly through the drip irrigation holes 34 at the bottom of the first drip irrigation spray seat 31, the second drip irrigation spray seat 32, and the third drip irrigation spray seat 33, respectively, to moisten the soil around the crop roots. At the same time, the controller, in conjunction with the real-time detection of the water pressure sensor 12, ensures that the output pressure of the external water supply pump is in a stable low-pressure state, thereby realizing low-pressure drip irrigation of pesticides at the crop roots. The pesticide solution slowly penetrates the soil, which can not only ensure that the crop roots fully absorb the pesticide solution and effectively prevent root diseases and pests, but also avoid the problem of high-pressure water flow washing away the soil, causing the roots to be exposed and the pesticide solution to be lost, thus improving the uniformity and utilization rate of root application. When drip irrigation of crop leaves is required, the controller causes the lower movable end of the dual-axis electric push rod 42 to drive the push rod 72, the third spring 73, and the rolling shaft 74 to move downwards synchronously. This causes the outer wall of the push rod 72 to fit against the top of the second sealing frame 62, and drives the second sealing frame 62 to move downwards synchronously, stretching the second spring 63 until the second sealing frame 62 seals the drip irrigation hole 34, thus sealing the bottom drip irrigation hole 34. At this time, the pesticide solution in the main pipe 1 enters several branch pipes 21 and is discharged into the corrugated telescopic frame 91 through the spray nozzle 35 at the top of the drip irrigation spray assembly 3. Simultaneously, the controller, in conjunction with the real-time detection of the water pressure sensor 12, controls the process. This allows for dynamic fine-tuning of the external water pump pressure to adapt to spraying conditions. Simultaneously, in conjunction with the controller, the upper movable end of the dual-axis electric push rod 42 drives the lifting plate 81, lifting rod 82, connecting plate 83, and actuating frame 84 upwards. This also simultaneously drives the corrugated telescopic frame 91, spray pipe 92, and atomizing nozzle 93. The corrugated telescopic frame 91 gradually unfolds with the leaf actuation stroke. As the actuating frame 84 flips up the crop leaves and opens the leaf gaps, it simultaneously completes double-sided atomized spraying on both the upper and lower surfaces of the leaves, achieving a stepped dynamic lifting and lowering spraying operation. Compared to traditional fixed-point unidirectional spraying technology, this reduces the spray blind zone on the back of the leaves, improving the overall pesticide adhesion rate and pest control effect.

[0035] Simultaneously, the dual-axis electric push rod 42, in conjunction with the push rod 72, drives the first sealing frame 52 and the second sealing frame 62 to move respectively, enabling interlocked switching between root drip irrigation and leaf spraying operation modes. This also simplifies the device structure, reduces equipment production costs and post-operation maintenance difficulty, and improves equipment operational stability.

[0036] To address the technical problem of pesticide solutions easily crystallizing and accumulating impurities, leading to pipeline blockage, such as... Figures 4-7 and Figure 10 As shown, the following preferred technical solutions are provided: like Figures 5-7 and Figure 10 As shown, the push-pull sealing assembly 10 includes a protective frame 101 fixedly connected to the first drip irrigation spraying seat 31. The protective frame 101 is made of corrosion-resistant material, which can isolate the corrosion of pesticide liquid and extend the service life of the components. An electromagnet 102 is installed in the protective frame 101. A first magnet 103 is installed in the first sealing frame 52, and a second magnet 104 is installed in the second sealing frame 62. The second drip irrigation spraying seat 32, the third drip irrigation spraying seat 33 and subsequent drip irrigation spraying seats are all equipped with a dual drive assembly 4, a first sealing assembly 5, a second sealing assembly 6, a switching push assembly 7, a toggle assembly 8, a folding spraying assembly 9 and a push-pull sealing assembly 10.

[0037] After a period of use, pesticide solutions are prone to crystallization and impurity accumulation, leading to blockage of the atomizing nozzle 93 and drip irrigation hole 34. Therefore, after a certain period of use, the controller applies positive electromagnetic current to the electromagnet 102. At this time, the electromagnet 102 generates magnetic force, attracting the first magnet block 103 and the second magnet block 104 respectively, thereby synchronously driving the first sealing frame 52 and the second sealing frame 62 to move, so that the first sealing frame 52 and the second sealing frame 62 approach each other and fit tightly, which can block the drainage passage at the rear end of the branch pipe 21. At the same time, the controller causes the valves of the other second solenoid valves 22 to close synchronously, forming a single-section closed pipe network cavity. Subsequently, through the controller and in conjunction with the real-time detection of the water pressure sensor 12, the external clean water supply equipment continuously pressurizes, causing the water pressure inside the closed pipe network to gradually increase. The high-pressure clean water powerfully flushes away the pesticide crystals and residual impurities in the atomizing nozzle 93 and drip irrigation hole 34, achieving automatic unblocking and cleaning.

[0038] After the atomizing nozzle 93 and drip hole 34 in the first drip irrigation spray seat 31 near the main pipe 1 have completed high-pressure self-cleaning, the controller applies reverse electromagnetic force to the electromagnet 102. The electromagnet 102 generates magnetic force, which repels the first magnet block 103 and the second magnet block 104 respectively. This, in turn, drives the first sealing frame 52 and the second sealing frame 62 to move away from each other, thus sealing the drip hole 34 and the spray nozzle 35. The sealing state of the drip hole 34 and the spray nozzle 35 is maintained. Then, the above-mentioned sealing, pressure-holding and high-pressure self-cleaning operation is repeated on the atomizing nozzle 93 and drip hole 34 in the second drip irrigation spray seat 32. This process is repeated segment by segment to achieve automatic cleaning of the atomizing nozzle 93 and drip hole 34 in each first drip irrigation spray seat 31 of the entire drip irrigation network. This ensures the long-term stable operation of the device and maintains a good spraying and drip irrigation effect.

[0039] If the pressure of the water pressure sensor 12 continues to increase during the cleaning process and exceeds the safety threshold, an alarm will be triggered. The atomizing nozzle 93 and drip hole 34 in the first drip irrigation spray seat 31 at the corresponding position will be inspected manually. The alarm is existing technology and is not shown in the figure.

[0040] 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.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pesticide spraying device based on a drip irrigation network, comprising a main pipe (1), a first solenoid valve (11) disposed on the main pipe (1), and a water pressure sensor (12) for detecting the water pressure value inside the pipe network installed on the inner wall of the main pipe (1), characterized in that: The main pipe (1) is evenly connected to several connecting components (2) on one side. The connecting components (2) are equipped with a drip irrigation spraying component (3) for dual-mode spraying operations of root drip irrigation and leaf spraying. The drip irrigation spraying component (3) is equipped with a dual drive component (4) at the top. The drip irrigation spraying component (3) is equipped with a first blocking component (5) for blocking the bottom drip irrigation path and a second blocking component (6) for blocking the top spraying path. The drip irrigation spraying component (3) is equipped with a switching push component (7). The switching push component (7) is fixedly connected to the lower movable end of the dual drive component (4). The upper movable end of the dual drive component (4) is fixedly connected to a prying component (8) for moving the plant leaves. The top of the drip irrigation spraying component (3) is connected to a folding spraying component (9) for synchronously lifting and folding with the prying component (8) to complete leaf spraying. The folding spraying component (9) is fixedly connected to the prying component (8). The drip irrigation spraying component (3) is equipped with a push-pull blocking component (10).

2. The pesticide spraying device based on a drip irrigation network according to claim 1, characterized in that: The connecting component (2) includes several branch pipes (21) connected to the main pipe (1), and each of the several branch pipes (21) is equipped with a second solenoid valve (22).

3. The pesticide spraying device based on a drip irrigation network according to claim 2, characterized in that: The drip irrigation spraying assembly (3) includes a first drip irrigation spraying seat (31), a second drip irrigation spraying seat (32) and a third drip irrigation spraying seat (33) connected sequentially to the branch pipe (21). The bottom of the first drip irrigation spraying seat (31), the second drip irrigation spraying seat (32) and the third drip irrigation spraying seat (33) are all provided with a number of drip irrigation holes (34), and the top of the first drip irrigation spraying seat (31), the second drip irrigation spraying seat (32) and the third drip irrigation spraying seat (33) are all provided with spray nozzles (35).

4. A pesticide spraying device based on a drip irrigation network according to claim 3, characterized in that: The dual-drive assembly (4) includes a mounting frame (41) fixedly connected to the top of the first drip irrigation spray seat (31), and a dual-axis electric push rod (42) is installed inside the mounting frame (41).

5. A pesticide spraying device based on a drip irrigation network according to claim 4, characterized in that: The first sealing component (5) includes a first limiting rod (51) fixedly connected to the top of the inner wall of the first drip irrigation spray seat (31), a first sealing frame (52) slidably connected to the outer wall of the first limiting rod (51), one side of the first sealing frame (52) slidably fitting against the inner wall of the first drip irrigation spray seat (31), a first spring (53) fixedly connected to the inner wall of the first sealing frame (52), and the other end of the first spring (53) fixedly connected to the first limiting rod (51), and the first sealing frame (52) is located directly below the spray nozzle (35).

6. A pesticide spraying device based on a drip irrigation network according to claim 5, characterized in that: The second sealing component (6) includes a second limiting rod (61) fixedly connected to the bottom of the inner wall of the first drip irrigation spray seat (31). A second sealing frame (62) is slidably connected to the outer wall of the second limiting rod (61). One side of the second sealing frame (62) is slidably attached to the inner wall of the first drip irrigation spray seat (31). A second spring (63) is fixedly connected to the inner wall of the second sealing frame (62), and the other end of the second spring (63) is fixedly connected to the second limiting rod (61). The second sealing frame (62) is located directly above the drip irrigation hole (34).

7. A pesticide spraying device based on a drip irrigation network according to claim 4, characterized in that: The switching push assembly (7) includes a guide rod (71) fixedly connected to the lower movable end of the dual-axis electric push rod (42), a push rod (72) slidably connected inside the guide rod (71), a third spring (73) fixedly connected to the inner wall of the guide rod (71), and the other end of the third spring (73) fixedly connected to the push rod (72). A rolling shaft (74) is rotatably connected to one end of the push rod (72). A support plate (75) is fixedly connected to the inner wall of the first drip irrigation spray seat (31), and a guide plate (76) is fixedly connected to the other end of the support plate (75). Two vertical guide grooves (77) and a V-shaped guide groove (78) are respectively opened on one side of the guide plate (76). The two vertical guide grooves (77) are respectively connected to both sides of the V-shaped guide groove (78), and the rolling shaft (74) is slidably connected to the two vertical guide grooves (77) and the V-shaped guide groove (78).

8. A pesticide spraying device based on a drip irrigation network according to claim 4, characterized in that: The actuation assembly (8) includes a lifting plate (81) fixedly connected to the movable end of the dual-axis electric push rod (42), a lifting rod (82) fixedly connected to the bottom of the lifting plate (81), and a connecting plate (83) fixedly connected to the other end of the lifting rod (82), and an inclined actuation frame (84) fixedly connected inside the connecting plate (83).

9. A pesticide spraying device based on a drip irrigation network according to claim 8, characterized in that: The folding spray assembly (9) includes a corrugated telescopic frame (91) fixedly connected to the top of the first drip irrigation spray seat (31). The corrugated telescopic frame (91) is connected to the spray nozzle (35). The top of the corrugated telescopic frame (91) is fixedly connected to the connecting plate (83). Spray pipes (92) are connected to both sides of the corrugated telescopic frame (91). One end of the spray pipe (92) is connected to an atomizing nozzle (93).

10. A pesticide spraying device based on a drip irrigation network according to claim 6, characterized in that: The push-pull sealing assembly (10) includes a protective frame (101) fixedly connected to the first drip irrigation spray seat (31), an electromagnet (102) installed in the protective frame (101), a first magnet (103) installed in the first sealing frame (52), and a second magnet (104) installed in the second sealing frame (62).

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