A green and high-yield corn water and fertilizer integrated intelligent water-saving drip irrigation system

Abstract

The present invention discloses a green and high-yield intelligent water-saving drip irrigation system for corn with integrated water and fertilizer, which relates to the technical field of corn planting irrigation. It includes a main drip irrigation pipe and a number of drip irrigation branch pipes connected to the main drip irrigation pipe; a fertilizer dissolution barrel is arranged at the connection of the main drip irrigation pipe and the drip irrigation branch pipes; a pressurizing piston barrel is installed between the fertilizer dissolution barrel and the drip irrigation branch pipes to further pressurize during the application of water and fertilizer; triangular cushion blocks are evenly distributed on the surface of the drip irrigation branch pipes; side drip irrigation ports are opened on both inclined surfaces on the left and right sides of the triangular cushion blocks, and side drip heads are installed at the side drip irrigation ports; a spray head is installed at the top vertex angle of the triangular cushion blocks. The invention improves the drip irrigation pipe network system according to the characteristics of corn close planting and strip intercropping of other crops, can further stably dissolve fertilizer and flexibly apply different water and fertilizers or spray foliar fertilizers, meet the flexible fertilization requirements of intercropped crops, improve the utilization rate of water and fertilizer, reduce the waste of water and fertilizer resources, save water and increase efficiency, ensure the high yield and high quality of corn, and help improve the income of farmers.

Description

Technical Field

[0001] The present invention relates to the technical field of corn planting irrigation, and specifically relates to an intelligent water-saving drip irrigation system for green and high-yield corn with integrated water and fertilizer. Background Art

[0002] In the existing crop planting irrigation technology, drip irrigation technology is a method of irrigation in which a certain pressure is provided to the water supply of the pipe network and drip irrigation belt, and water droplets are slowly and evenly dripped into the soil near the roots of plants in the form of water droplets through drip heads. Conventional drip irrigation systems are mainly composed of a water storage tank or other water sources for water supply, combined with a pressurized water pump, various levels of water distribution pipelines, drip heads, etc. It has been widely used due to its functions such as accurate quantification, cost reduction and efficiency increase.

[0003] However, most drip irrigation systems are usually only simple drip irrigation pipelines, lacking corresponding management means such as coordinated water and fertilizer. Some existing integrated water and fertilizer drip irrigation systems usually simply use the water storage tank for water supply to dissolve water and fertilizer synchronously, and integrate irrigation and fertilization for unified water and fertilizer irrigation. There is also, for example, a sowing and integrated water and fertilizer device suitable for shallow buried drip irrigation of wheat and corn as described in CN218388636U, which performs fertilizer dissolution treatment in cooperation with the drip irrigation system by setting an additional independent fertilizer dissolution tank. However, there are still some problems in the actual use of existing integrated water and fertilizer drip irrigation systems. For example, the mixing of water and fertilizer is not sufficient, which easily affects the uniformity after fertilization and is also prone to cause pipeline blockage; the management of irrigation and fertilization is not scientific, and many foliar fertilizers and pesticides still need to be sprayed manually, and it is difficult to flexibly apply the coordinated management of water, fertilizer and medicine; the simple drip irrigation pipe network is not convenient to cooperate with the planting mode of intercropped crops such as close planting crops, and simple intensive surface drip irrigation of water and fertilizer is also prone to cause large-area hardening of the drip irrigation ground. In view of this, in-depth research has been carried out on the above problems, and thus this case has emerged. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent water-saving drip irrigation system for green and high-yield corn with integrated water and fertilizer, so as to solve the problems proposed in the above background art, such as the integrated water and fertilizer drip irrigation system not being suitable for the planting mode of intercropped crops, the limited flexibility of water and fertilizer application, and the uneven water and fertilizer application effect.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An intelligent water-saving drip irrigation system for green and high-yield corn with integrated water and fertilizer, comprising a main drip irrigation belt and a number of drip irrigation branch pipes connected to the main drip irrigation belt;

[0006] An independent frame is provided at the connection of the main drip irrigation belt and the drip irrigation branch pipes, and a fertilizer dissolution tank is fixedly installed at the independent frame;

[0007] A weighing hopper for quantitative fertilization is arranged above the fertilizer dissolution tank, and a control panel is installed outside the independent frame for controlling the quantitative ratio of water and fertilizer;

[0008] A pressure piston cylinder is installed between the soluble fertilizer tank and the drip irrigation branch pipe to further pressurize during the application of water and fertilizer;

[0009] The surface of the drip irrigation branch pipe is evenly distributed with triangular cushion blocks according to the plant spacing of corn. The corn is planted in a strip intercropping pattern, and the drip irrigation branch pipe is located between the corn planting belts;

[0010] The bottom surface of the triangular cushion block touches the ground for support, and side drip irrigation ports are opened on both inclined surfaces on the left and right sides of the triangular cushion block. Side drip heads are installed at the side drip irrigation ports for drip irrigation of water and fertilizer;

[0011] A pressure relief port is opened at the top vertex angle of the triangular cushion block, and a spray head is installed at the pressure relief port for spraying water and fertilizer such as foliar fertilizer.

[0012] Preferably, the corn planting belt is in a "2 + 2" planting pattern of corn - soybean strip intercropping, and the drip irrigation branch pipe is distributed 10 - 25 cm away from the plants.

[0013] Adopting the above technical scheme, the corn - soybean strip intercropping can effectively increase the crop yield per unit area. At the same time, the nitrogen - fixing effect of soybeans also contributes to high crop yields. The relatively dense planting spacing can also facilitate the laying of the drip irrigation branch pipe between the planting belts while taking into account the synchronous irrigation of crops on both sides.

[0014] Preferably, an extension pipe is also installed at the side drip head of the triangular cushion block. The drip irrigation branch pipe is laid on one side 3 - 10 cm to the left or right of the middle of the ridge, and the extension pipe is located on the other side of the drip irrigation branch pipe.

[0015] Adopting the above technical scheme, by setting the extension pipe, it is convenient to carry out drip irrigation on both sides of the drip irrigation branch pipe and also convenient to lay it close to the crops on one side, making the spray head above the drip irrigation branch pipe close to the corresponding crops, and facilitating flexible adjustment and layout for some crops that need to apply more foliar fertilizer in the case of strip intercropping of different crops.

[0016] Preferably, a servo motor and a speed reducer are installed on the top of the independent frame. A driving main shaft penetrates through the middle of the soluble fertilizer tank, and the servo motor drives the driving main shaft through the speed reducer;

[0017] A stirring frame is arranged on the outer side of the middle part of the driving main shaft, and the stirring frame is located inside the soluble fertilizer tank.

[0018] Adopting the above technical scheme, the main function of the driving main shaft is to drive the stirring frame to mix and stir inside the soluble fertilizer tank. It can be adjusted and controlled by the servo motor and driven stably by the speed reducer for deceleration.

[0019] Preferably, a water inlet is provided on the side of the top of the fertilizer dissolution tank, and an electromagnetic control valve is installed at the water inlet. Both the electromagnetic control valve and the servo motor are controlled by electrical signals through a control panel.

[0020] With the above technical solution, both the electromagnetic control valve and the servo motor can be controlled and adjusted through the control panel, so as to facilitate adjusting the water supply amount correspondingly after adding an appropriate amount of fertilizer for water-fertilizer ratio, and at the same time, performing stable and sufficient stirring and mixing treatment to ensure the full dissolution of the fertilizer.

[0021] Preferably, a feeding port is provided between the middle of the top of the fertilizer dissolution tank and the weighing hopper, and a feeding auger is disposed through the inside of the feeding port;

[0022] The feeding auger is located at the upper end of the driving main shaft, and the feeding auger rotates synchronously with the driving main shaft.

[0023] With the above technical solution, the driving main shaft can be driven synchronously through the feeding auger at the upper end. The feeding auger located at the feeding port can perform stable and uniform feeding of the fertilizer, and at the same time, the equipment performs synchronous and collaborative stirring, so as to ensure the full and rapid dissolution of the fertilizer.

[0024] Preferably, a water inlet pipe and a water outlet pipe are respectively connected to the upper and lower sides of the front end of the pressure piston cylinder, and both the water inlet pipe and the water outlet pipe are tangentially arranged at the connection ports with the pressure piston cylinder.

[0025] With the above technical solution, the tangentially arranged water inlet pipe and water outlet pipe can cause the water-fertilizer to form a certain swirl in the pressure piston cylinder when the water-fertilizer enters the pressure piston cylinder, which helps to assist in maintaining the fully dissolved state of the water-fertilizer and at the same time avoids the accumulation of some sundries inside the equipment.

[0026] Preferably, check valves are provided at the connections of the water inlet pipe and the water outlet pipe with the pressure piston cylinder, and the water-fertilizer in the fertilizer dissolution tank forms a one-way passage in sequence through the water inlet pipe, the pressure piston cylinder, the water outlet pipe and the drip irrigation branch pipe.

[0027] With the above technical solution, the one-way water flow passage formed by the cooperation of the check valves can facilitate the pressurization in cooperation with the reciprocating movement of the pressure piston cylinder. When the movable link in the pressure piston cylinder moves backward, the water-fertilizer in the fertilizer dissolution tank enters the pressure piston cylinder through the water inlet pipe, and when the movable link moves forward, the water-fertilizer in the pressure piston cylinder enters the drip irrigation branch pipe through the water outlet pipe.

[0028] Preferably, a piston connecting rod is provided behind the pressure piston cylinder, and a movable link is provided at the lower end of the driving main shaft. A reciprocating driving structure is formed between the movable link and the piston connecting rod through a connecting rod reciprocating mechanism.

[0029] With the above technical solution, the pressure piston cylinder is reciprocally driven by the connecting rod drive structure, that is, the reciprocating motion of the piston connecting rod is further driven in cooperation with the driving main shaft. While the water and fertilizer are applied, stirred and dissolved, further pressurization is carried out in cooperation with the unified drive system, so that the spray head at the pressure relief port sprays water for facilitating the auxiliary application of part of the foliar fertilizer, and reducing the soil compaction problem of the ground near the drip irrigation caused by the unified drip irrigation of water and fertilizer.

[0030] Preferably, the main body of the connecting rod reciprocating mechanism is a synchronous movable frame, and a connecting movable groove is horizontally opened inside the synchronous movable frame, and the piston connecting rods are fixedly arranged in parallel at the front end of the synchronous movable frame;

[0031] An eccentric movable shaft is slidably arranged inside the connecting movable groove, and the eccentric movable shaft and the driving main shaft are respectively connected to the head and tail ends of the movable connecting rod.

[0032] With the above technical solution, through the cooperation of the synchronous movable frame and the connecting movable groove structure, while facilitating the maintenance of the connecting rod transmission structure, it is convenient to synchronously drive the piston connecting rods of multiple pressure piston cylinders through the synchronous movable frame. The specific installation quantity and specifications of the pressure piston cylinders can be matched according to the actual number of drip irrigation branch pipes.

[0033] Compared with the prior art, the beneficial effects of the present invention are as follows: The intelligent water-saving drip irrigation system for green and high-yield corn with integrated water and fertilizer improves the drip irrigation pipe network system according to the characteristics of corn close planting and other crop strip intercropping, can further stably dissolve fertilizer, flexibly apply different water and fertilizers or spray foliar fertilizer, meet the flexible fertilization requirements of intercropped crops, improve the utilization rate of water and fertilizer, reduce the waste of water and fertilizer resources, save water and increase efficiency, ensure the high yield and quality of corn, and help improve the income of farmers. The specific advantages include:

[0034] 1. By improving the drip irrigation pipe network system to meet the irrigation requirements during crop intercropping and close planting, the drip irrigation branch pipe can carry out drip irrigation operations synchronously through the triangular pads through the side drip irrigation ports on both sides. It can also be further combined with the extension pipe to irrigate and arrange different crops on both sides at the same time, and is stably supported by the layout of the triangular pads, effectively reducing the occurrence of situations such as drip irrigation port blockage. At the same time, it ensures that the intercropped crops are green and high-yielding with a double harvest, can improve the utilization rate of water and fertilizer resources. When using corn-soybean strip intercropping, combined with the nitrogen fixation effect of soybeans itself, a high-yield intercropping model can be formed, achieving the effect of no reduction in corn yield and an additional harvest of soybeans, and improving the income of farmers.

[0035] 2. Meanwhile, a spray head is further provided at the pressure relief port at the top of the triangular cushion block structure, making use of the original drip irrigation system. An auxiliary pressurizing piston cylinder is arranged at the independent frame for auxiliary pressurization. Partial spraying of foliar fertilizer can be realized through further pressurization assistance, achieving the purpose of flexibly applying different water and fertilizer sprays to the foliar surface. Combined with the stable water and fertilizer mixing in the fertilizer dissolving tank, it is convenient for the flexible dissolution and mixing of different fertilizers, realizing the scientific and flexible fertilization of crops such as corn.

[0036] 3. The independent frame is provided with a servo motor for drive control in cooperation with the control panel. At the same time, the servo motor drives the stirring frame, feeding auger, and movable connecting rod in a coordinated manner through the driving main shaft. When the stirring frame stirs, the feeding auger feeds synchronously to accelerate the dissolution of the fertilizer and ensure the full mixing of the fertilizer solution. At the same time, the movable connecting rod further cooperates with the connecting rod reciprocating mechanism to synchronously drive the pressurizing piston cylinder for pressurization, meeting the requirements of foliar fertilizer spraying. At the same time, overhead spraying helps to reduce the problem of soil compaction on the drip irrigation surface caused by simple drip irrigation, realizing the coordinated operation of synchronous fertilizer dissolution and pressurization. And the overall structure is set as a fertilizer dissolution and pressurization mechanism independent of the original drip irrigation system, which is convenient for the transformation of ordinary non-water and fertilizer drip irrigation systems, significantly improving the working efficiency and flexibility of the drip irrigation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure for the corn-soybean strip intercropping irrigation in Embodiment 2 of the present invention;

[0038] Figure 2 For the present invention Figure 1 The enlarged structural schematic diagram at position a;

[0039] Figure 3 It is a schematic diagram of the overall structure for the corn close planting irrigation in Embodiment 1 of the present invention;

[0040] Figure 4 It is a schematic diagram of the triangular cushion block structure of the present invention;

[0041] Figure 5 It is a schematic diagram of the internal structure of the triangular cushion block of the present invention;

[0042] Figure 6 It is a schematic diagram of the internal structure of the fertilizer dissolving tank of the present invention;

[0043] Figure 7 It is a schematic diagram of the internal structure of the weighing feed bin of the present invention;

[0044] Figure 8 It is a schematic diagram of the connecting rod reciprocating mechanism and the pressurizing piston cylinder drive structure of the present invention;

[0045] Figure 9 For the present invention Figure 8 The enlarged structural schematic diagram at position b;

[0046] Figure 10 This is a schematic structural diagram when the connecting rod reciprocating mechanism of the present invention is in motion.

[0047] In the figure: 1. Main drip irrigation pipe; 2. Drip irrigation branch pipe; 3. Independent frame; 4. Fertilizer dissolution tank; 5. Weighing bin; 6. Control panel; 7. Pressurized piston cylinder; 8. Triangular cushion block; 81. Side drip irrigation port; 82. Side drip emitter; 83. Pressure relief port; 84. Spray head; 9. Extension pipe; 10. Servo motor; 11. Reducer; 12. Driving main shaft; 13. Stirring frame; 14. Water inlet; 15. Electromagnetic control valve; 16. Feeding port; 17. Feeding auger; 18. Water inlet pipe; 19. Water outlet pipe; 20. Check valve; 21. Piston connecting rod; 22. Movable connecting rod; 23. Connecting rod reciprocating mechanism; 231. Synchronous movable frame; 232. Connecting movable groove; 233. Eccentric movable shaft. Specific embodiments

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0049] Example 1, please refer to Figures 3 - 10 , the present invention provides a technical solution:

[0050] A green high-yield corn water and fertilizer integrated intelligent water-saving drip irrigation system includes a main drip irrigation pipe 1 and a plurality of drip irrigation branch pipes 2 connected to the main drip irrigation pipe 1; an independent frame 3 is provided at the connection of the main drip irrigation pipe 1 and the drip irrigation branch pipe 2, and a fertilizer dissolution tank 4 is fixedly installed at the independent frame 3; a weighing bin 5 for quantitative fertilization is arranged above the fertilizer dissolution tank 4, and a control panel 6 for controlling the quantitative ratio of water and fertilizer is installed outside the independent frame 3;

[0051] Combined with Figures 6 - 7 As shown, a servo motor 10 and a reducer 11 are installed on the top of the independent frame 3, and a driving main shaft 12 penetrates through the middle of the fertilizer dissolution tank 4, and the servo motor 10 constitutes a driving structure for the driving main shaft 12 through the reducer 11; a stirring frame 13 is arranged on the outer side of the middle of the driving main shaft 12, and the stirring frame 13 is located inside the fertilizer dissolution tank 4. The main function of the driving main shaft 12 is to drive the stirring frame 13 to perform mixing and stirring in the fertilizer dissolution tank 4, and the servo motor 10 is used for cooperative adjustable control driving, and at the same time, the reducer 11 is used for deceleration to maintain stable driving.

[0052] A water inlet 14 is provided on the side of the top of the fertilizer solution tank 4, and an electromagnetic control valve 15 is installed at the water inlet 14. Both the electromagnetic control valve 15 and the servo motor 10 are controlled by electrical signals through the control panel 6. The electromagnetic control valve 15 and the servo motor 10 can both be controlled and adjusted through the control panel 6, so as to facilitate corresponding adjustment of the water supply amount after adding an appropriate amount of fertilizer for water-fertilizer ratio, and at the same time, perform stable and sufficient stirring and mixing treatment to ensure that the fertilizer is fully dissolved.

[0053] A discharge port 16 is provided between the middle of the top of the fertilizer solution tank 4 and the weighing hopper 5, and a discharge auger 17 is arranged through the inside of the discharge port 16; the discharge auger 17 is located at the upper end of the driving main shaft 12, and the discharge auger 17 rotates synchronously with the driving main shaft 12. The driving main shaft 12 can be driven synchronously through the discharge auger 17 at the upper end, and the discharge auger 17 located at the discharge port 16 can stably and evenly discharge the fertilizer synchronously, and at the same time, the equipment performs synchronous cooperative stirring, so as to ensure the full and rapid dissolution of the fertilizer.

[0054] A pressurizing piston cylinder 7 is installed between the fertilizer solution tank 4 and the drip irrigation branch pipe 2 to further pressurize during the application of water and fertilizer; a water inlet pipe 18 and a water outlet pipe 19 are respectively connected to the upper and lower sides of the front end of the pressurizing piston cylinder 7, and both the water inlet pipe 18 and the water outlet pipe 19 are tangentially arranged at the connection ports with the pressurizing piston cylinder 7. The tangentially arranged water inlet pipe 18 and water outlet pipe 19 can cause the water and fertilizer to form a certain swirl in the pressurizing piston cylinder 7 when the water and fertilizer enter the pressurizing piston cylinder 7, which helps to assist in maintaining the fully dissolved state of the water and fertilizer, and at the same time avoids the accumulation of some sundries inside the equipment. Check valves 20 are provided at the connections of the water inlet pipe 18 and the water outlet pipe 19 with the pressurizing piston cylinder 7, and the water and fertilizer in the fertilizer solution tank 4 form a one-way passage in sequence through the water inlet pipe 18, the pressurizing piston cylinder 7, the water outlet pipe 19 and the drip irrigation branch pipe 2. The one-way water flow passage formed by the cooperation of the check valves 20 can facilitate the driving and pressurization in cooperation with the reciprocating movement of the pressurizing piston cylinder 7. When the movable link 22 at the rear of the pressurizing piston cylinder 7 moves backward, the water and fertilizer in the fertilizer solution tank 4 enter the pressurizing piston cylinder 7 through the water inlet pipe 18, and when the movable link 22 moves forward, the water and fertilizer in the pressurizing piston cylinder 7 enter the drip irrigation branch pipe 2 through the water outlet pipe 19.

[0055] Combined Figures 8 - 10 As shown in the figure, a piston connecting rod 21 is provided behind the pressurizing piston cylinder 7, and a movable link 22 is provided at the lower end of the driving main shaft 12, and a reciprocating driving structure is formed between the movable link 22 and the piston connecting rod 21 through a connecting rod reciprocating mechanism 23. The pressurizing piston cylinder 7 is reciprocally driven through the connecting rod driving structure, that is, further utilizes the driving main shaft 12 to cooperatively drive the reciprocating movement of the piston connecting rod 21. While performing the stirring and dissolution of the water and fertilizer application, the unified driving system is used to cooperatively perform further pressurization, so that the spray head 84 at the pressure relief port 83 ejects water for spraying to facilitate the auxiliary application of some foliar fertilizers, and reduce the soil compaction problem of the ground near the drip irrigation caused by the unified drip irrigation of water and fertilizer.

[0056] The main body of the connecting rod reciprocating mechanism 23 is a synchronous movable frame 231. A connecting movable groove 232 is horizontally formed inside the synchronous movable frame 231. The piston connecting rods 21 are fixedly arranged in parallel at the front end of the synchronous movable frame 231. An eccentric movable shaft 233 is slidably arranged inside the connecting movable groove 232. The eccentric movable shaft 233 and the driving main shaft 12 are respectively connected to the head and tail ends of the movable connecting rod 22. Through the cooperation of the synchronous movable frame 231 and the connecting movable groove 232 structure, while facilitating the maintenance of the connecting rod transmission structure, it is convenient to synchronously drive the piston connecting rods 21 of multiple pressurized piston cylinders 7 through the synchronous movable frame 231. The specific installation quantity and specifications of the pressurized piston cylinders 7 can be coordinated according to the actual quantity of the drip irrigation branch pipes 2.

[0057] Triangular cushion blocks 8 are evenly distributed on the surface of the drip irrigation branch pipe 2 according to the maize planting spacing. The maize is planted in a strip-shaped and dense pattern, and the drip irrigation branch pipe 2 is located between the maize planting belts; combined Figures 4 - 5 As shown, the bottom surface of the triangular cushion block 8 touches the ground for support. Side drip irrigation ports 81 are formed on both inclined surfaces on the left and right sides of the triangular cushion block 8. Side drip heads 82 are installed at the side drip irrigation ports 81 for water and fertilizer drip irrigation. The relatively dense planting spacing can also facilitate the laying of the drip irrigation branch pipe 2 between the planting belts while taking into account the synchronous irrigation of crops on both sides. A pressure relief port 83 is formed at the top vertex angle of the triangular cushion block 8. A spray head 84 is installed at the pressure relief port 83 for spraying water and fertilizers such as foliar fertilizers. When fertilization is not required, a certain pressure is maintained in the drip irrigation branch pipe 2, and normal irrigation can be carried out through the side drip heads 82 on both sides. When water and fertilizer application is required, the spray head 84 at the pressure relief port 83 can be further pressurized in cooperation with the pressurized piston cylinder 7 to carry out water and fertilizer spraying.

[0058] Example 2, please refer to Figures 1 - 2 and Figures 4 - 10 , the present invention provides a technical solution:

[0059] A green high-yield maize water and fertilizer integrated intelligent water-saving drip irrigation system includes a drip irrigation main pipe 1 and a plurality of drip irrigation branch pipes 2 connected to the drip irrigation main pipe 1. Triangular cushion blocks 8 are evenly distributed on the surface of the drip irrigation branch pipe 2 according to the maize planting spacing. The maize is planted in a strip-shaped intercropping pattern, and the drip irrigation branch pipe 2 is located between the maize planting belts; combined Figures 4 - 5 As shown, the bottom surface of the triangular cushion block 8 touches the ground for support. Side drip irrigation ports 81 are formed on both inclined surfaces on the left and right sides of the triangular cushion block 8. Side drip heads 82 are installed at the side drip irrigation ports 81 for water and fertilizer drip irrigation. A pressure relief port 83 is formed at the top vertex angle of the triangular cushion block 8. A spray head 84 is installed at the pressure relief port 83 for spraying water and fertilizers such as foliar fertilizers.

[0060] The corn planting belt adopts the "2 + 2" planting mode of strip intercropping of corn and soybean, and the drip irrigation branch pipe 2 is distributed at a distance of 10 - 25 cm from the plants. The strip intercropping of corn and soybean effectively increases the crop yield per unit area. At the same time, the nitrogen fixation effect of soybean also contributes to high crop yield. The relatively dense planting spacing also facilitates the laying of the drip irrigation branch pipe 2 between the planting belts while taking into account the synchronous irrigation of the crops on both sides. An extension pipe 9 is also installed at the side drip head 82 of the triangular cushion block 8, and the drip irrigation branch pipe 2 is laid along one side 3 - 10 cm to the left or right of the middle of the ridge. And the extension pipe 9 is located on the other side of the drip irrigation branch pipe 2. By cooperating with the setting of the extension pipe 9, it is convenient to carry out drip irrigation of the crops on both sides of the drip irrigation branch pipe 2 and can be conveniently arranged close to the crops on one side, so that the spray head 84 above the drip irrigation branch pipe 2 is close to the corresponding crops, facilitating flexible adjustment and layout for some crops that need to apply more foliar fertilizer in the case of strip intercropping of different crops.

[0061] Combined Figures 6 - 7 As shown, an independent frame 3 is provided at the connection of the drip irrigation main pipe 1 and the drip irrigation branch pipe 2, and a fertilizer dissolving tank 4 is fixedly installed at the independent frame 3; a weighing hopper 5 for quantitative fertilizer feeding is arranged above the fertilizer dissolving tank 4, and a control panel 6 is installed outside the independent frame 3 for controlling the quantitative ratio of water and fertilizer; a servo motor 10 and a speed reducer 11 are installed on the top of the independent frame 3, and a driving main shaft 12 is arranged through the middle of the fertilizer dissolving tank 4, and the servo motor 10 constitutes a driving structure for the driving main shaft 12 through the speed reducer 11; a stirring frame 13 is arranged on the outer side of the middle of the driving main shaft 12, and the stirring frame 13 is located inside the fertilizer dissolving tank 4. The main function of the driving main shaft 12 is to drive the stirring frame 13 to carry out mixing and stirring in the fertilizer dissolving tank 4, and through the cooperation of the servo motor 10, adjustable control driving can be carried out, and at the same time, the speed reducer 11 is used for deceleration to maintain stable driving.

[0062] A water inlet 14 is arranged on the side of the top of the fertilizer dissolving tank 4, and an electromagnetic control valve 15 is installed at the water inlet 14, and both the electromagnetic control valve 15 and the servo motor 10 are controlled by electrical signals through the control panel 6. Both the electromagnetic control valve 15 and the servo motor 10 can be controlled and adjusted through the control panel 6, so as to facilitate corresponding adjustment of the water supply amount after adding an appropriate amount of fertilizer for water and fertilizer ratio and at the same time carry out stable and sufficient stirring and mixing treatment to ensure full dissolution of the fertilizer.

[0063] A blanking port 16 is arranged between the middle of the top of the fertilizer dissolving tank 4 and the weighing hopper 5, and a blanking auger 17 is arranged through the inside of the blanking port 16; the blanking auger 17 is located at the upper end of the driving main shaft 12, and the blanking auger 17 rotates synchronously with the driving main shaft 12. The driving main shaft 12 can be driven synchronously through the blanking auger 17 at the upper end, and the blanking auger 17 located at the blanking port 16 can carry out stable and uniform blanking of the fertilizer, and at the same time, the equipment carries out synchronous collaborative stirring, so as to ensure full and rapid dissolution of the fertilizer.

[0064] A pressure - adding piston cylinder 7 is installed between the fertilizer - solution tank 4 and the drip - irrigation branch pipe 2 to further pressurize during the application of water and fertilizer. The upper and lower parts of the front end of the pressure - adding piston cylinder 7 are respectively connected with a water inlet pipe 18 and a water outlet pipe 19, and both the water inlet pipe 18 and the water outlet pipe 19 are tangentially arranged at the connection ports with the pressure - adding piston cylinder 7. The tangentially arranged water inlet pipe 18 and water outlet pipe 19 can make the water and fertilizer form a certain swirl inside the pressure - adding piston cylinder 7 when the water and fertilizer enter the pressure - adding piston cylinder 7, which helps to keep the water and fertilizer in a fully dissolved state and avoid the accumulation of some sundries inside the equipment. Check valves 20 are arranged at the connections of the water inlet pipe 18 and the water outlet pipe 19 with the pressure - adding piston cylinder 7, and the water and fertilizer in the fertilizer - solution tank 4 form a one - way passage in sequence through the water inlet pipe 18, the pressure - adding piston cylinder 7, the water outlet pipe 19 and the drip - irrigation branch pipe 2. The cooperation of the check valves 20 forms a one - way water - flow passage, which is convenient for cooperating with the reciprocating motion of the pressure - adding piston cylinder 7 to drive the pressurization. When the movable connecting rod 22 in the pressure - adding piston cylinder 7 moves backward, the water and fertilizer in the fertilizer - solution tank 4 enter the pressure - adding piston cylinder 7 through the water inlet pipe 18, and when the movable connecting rod 22 moves forward, the water and fertilizer in the pressure - adding piston cylinder 7 enter the drip - irrigation branch pipe 2 through the water outlet pipe 19.

[0065] Combined with Figures 8 - 10 As shown in the figure, a piston connecting rod 21 is arranged behind the pressure - adding piston cylinder 7, and a movable connecting rod 22 is arranged at the lower end of the driving main shaft 12. The movable connecting rod 22 and the piston connecting rod 21 form a reciprocating driving structure through a connecting - rod reciprocating mechanism 23. The pressure - adding piston cylinder 7 is reciprocally driven through the connecting - rod driving structure, that is, the reciprocating motion of the piston connecting rod 21 is further driven in cooperation with the driving main shaft 12. While stirring and dissolving the water and fertilizer during the application, further pressurization is carried out in cooperation with a unified driving system, so that the spray head 84 at the pressure - relief port 83 sprays water for the auxiliary application of part of the foliar fertilizer, reducing the problem of soil compaction on the ground near the drip irrigation caused by the unified drip irrigation of water and fertilizer.

[0066] The main body of the connecting - rod reciprocating mechanism 23 is a synchronous movable frame 231. A connecting - activity groove 232 is horizontally opened inside the synchronous movable frame 231, and the piston connecting rod 21 is fixedly arranged in parallel at the front end of the synchronous movable frame 231. An eccentric movable shaft 233 is slidably arranged inside the connecting - activity groove 232, and the eccentric movable shaft 233 and the driving main shaft 12 are respectively connected to the head and tail ends of the movable connecting rod 22. Through the cooperation of the synchronous movable frame 231 and the connecting - activity groove 232 structures, while facilitating the maintenance of the connecting - rod transmission structure, it is convenient to synchronously drive the piston connecting rods 21 of multiple pressure - adding piston cylinders 7 through the synchronous movable frame 231. The specific installation quantity and specifications of the pressure - adding piston cylinders 7 can be coordinated according to the actual number of drip - irrigation branch pipes 2.

[0067] The content not detailedly described in this specification belongs to the prior art well-known to those skilled in the art. Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A green high-yield corn water and fertilizer integrated intelligent water-saving drip irrigation system, comprising a main drip irrigation pipe and a plurality of drip irrigation branch pipes connected to the main drip irrigation pipe, characterized in that: An independent frame is provided at the connection of the main drip irrigation pipe and the drip irrigation branch pipes, and a fertilizer dissolution tank is fixedly installed at the independent frame; A weighing hopper for quantitative fertilizer application is arranged above the fertilizer dissolution tank, and a control panel is installed outside the independent frame for controlling the quantitative ratio of water and fertilizer; A servo motor and a speed reducer are installed on the top of the independent frame, and the servo motor drives the driving main shaft through the speed reducer to form a driving structure. The servo motor is used for coordinated adjustment and control of the drive, and at the same time, the speed reducer is used for speed reduction to maintain stable drive; A pressurizing piston cylinder is installed between the fertilizer dissolution tank and the drip irrigation branch pipes to further pressurize during the application of water and fertilizer. The specific installation quantity and specifications of the pressurizing piston cylinder are coordinated according to the actual number of drip irrigation branch pipes; A piston connecting rod is arranged behind the pressurizing piston cylinder, and a movable connecting rod is arranged at the lower end of the driving main shaft. A reciprocating driving structure is formed between the movable connecting rod and the piston connecting rod through a connecting rod reciprocating mechanism; Triangular cushion blocks are evenly distributed on the surface of the drip irrigation branch pipes according to the plant spacing of corn planting. The corn is planted in strips, and the drip irrigation branch pipes are located between the corn planting strips; The bottom surface of the triangular cushion block touches the ground for support, and side drip irrigation ports are opened on both inclined surfaces on the left and right sides of the triangular cushion block, and side drip heads are installed at the side drip irrigation ports for drip irrigation of water and fertilizer; A pressure relief port is opened at the top vertex angle of the triangular cushion block, and a spray head is installed at the pressure relief port for spraying leaf surface water and fertilizer. When no fertilization is required, a certain pressure is maintained in the drip irrigation branch pipes, and normal irrigation can be carried out through the side drip heads on both sides. When water and fertilizer application is required, the spray head at the pressure relief port can be cooperated with the pressurizing piston cylinder to carry out foliar fertilizer spraying; The corn planting strip is a "2+2" planting mode of corn-soybean strip intercropping, and the drip irrigation branch pipes are distributed 10-25 cm away from the plants; An extension pipe is also installed at the side drip head of the triangular cushion block, and the drip irrigation branch pipe is laid on one side 3-10 cm to the left or right of the middle of the ridge, and the extension pipe is located on the other side of the drip irrigation branch pipe.

2. The intelligent water-saving drip irrigation system for green and high-yield corn with integrated water and fertilizer according to claim 1, characterized in that: The driving main shaft penetrates through the middle of the fertilizer dissolution tank; A stirring frame is arranged on the outer side of the middle of the driving main shaft, and the stirring frame is located inside the fertilizer dissolution tank.

3. The intelligent water-saving drip irrigation system for green high-yield corn with integrated water and fertilizer according to claim 2, wherein: A water inlet is arranged on the side of the top of the fertilizer dissolution tank, and an electromagnetic control valve is installed at the water inlet. Both the electromagnetic control valve and the servo motor are controlled by electrical signals through the control panel.

4. The intelligent water-saving drip irrigation system for green high-yield corn with integrated water and fertilizer according to claim 2, characterized in that: A feeding port is arranged between the middle of the top of the fertilizer dissolution tank and the weighing hopper, and a feeding auger penetrates through the inside of the feeding port; The feeding auger is located at the upper end of the driving main shaft, and the feeding auger rotates synchronously with the driving main shaft.

5. The intelligent water-saving drip irrigation system for green high-yield corn with integrated water and fertilizer according to claim 2, characterized in that: The front upper and lower parts of the pressurizing piston cylinder are respectively connected with a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are tangentially arranged at the connection ports with the pressurizing piston cylinder.

6. The intelligent water-saving drip irrigation system for green high-yield corn with integrated water and fertilizer according to claim 5, characterized in that: One-way valves are arranged at the connections of the water inlet pipe and the water outlet pipe with the pressurizing piston cylinder, and the water and fertilizer in the fertilizer dissolution tank form a one-way passage through the water inlet pipe, the pressurizing piston cylinder, the water outlet pipe and the drip irrigation branch pipes in sequence.

7. An intelligent water-saving drip irrigation system for green and high-yield corn with integrated water and fertilizer according to claim 6, characterized in that: The main body of the connecting rod reciprocating mechanism is a synchronous movable frame, and a connecting movable groove is horizontally opened inside the synchronous movable frame, and the piston connecting rods are fixedly arranged in parallel at the front end of the synchronous movable frame; An eccentric movable shaft is slidably arranged inside the connecting movable groove, and the eccentric movable shaft and the driving main shaft are respectively connected to the head and tail ends of the movable connecting rod.

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