Water-saving equipment for surface water irrigation

Abstract

The invention discloses water-saving equipment for surface water irrigation, and particularly relates to the technical field of water save.The top of a water storage tank is connected with a supporting frame through bolts in an arrayed mode, the top of the supporting frame is connected with a flow guide inclined plate through bolts, and the center of the flow guide inclined plate is connected with a solar photovoltaic panel; a water collecting tank is connected to the edge of the outer wall of one side of the bottom of the inclined flow guide plate, a water outlet is formed in the lowest position of the center of the water collecting tank, and the bottom of the water outlet communicates with a guide pipe; rainwater can be guided and collected through the guide inclined plate, the cross sectional area of the guide inclined plate is larger than that of the water storage tank, the rainwater storage efficiency can be improved, meanwhile, the solar photovoltaic panel arranged on the surface of the guide inclined plate can convert solar energy into electric energy to supply power to the device on sunny days, and the energy-saving effect is achieved; rainwater drips to the surface of the flow guide inclined plate and then automatically flows into the water collecting tank to be collected due to gravity, so that subsequent irrigation water is facilitated, and a certain irrigation water source is saved.

Description

Technical Field

[0001] The present application relates to the technical field of water saving, and more specifically, to water saving equipment for surface water irrigation. Background Art

[0002] Irrigation is a technical measure to supplement the water needed by crops. In order to ensure the normal growth of crops and obtain high and stable yields, crops must be supplied with sufficient water. The main function of irrigation water-saving devices is to improve the utilization efficiency of irrigation water, reduce the waste of water resources, and at the same time ensure the normal growth of crops and improve agricultural production efficiency; After searching, the existing patent (publication number: CN105155617A) discloses an environmentally friendly water-saving device, which includes a water collection tank, a water storage tank is provided below the water collection tank, and water flow pipes connected to the water storage tank are provided on both sides of the water collection tank. The water storage tank includes a filter chamber and a storage chamber, and the filter chamber is located above the storage chamber. The bottom of the water storage tank is connected to a water pump through a water outlet pipe, and the water pump is also connected to a water spray pipe, and a nozzle is installed on the water spray pipe. The present invention can make full use of rainwater in life to achieve the effect of water saving and environmental protection. In the process of realizing this application, the inventor found that the prior art has the following problems: Existing irrigation water-saving equipment often only collects rainwater through a separate water collection tank when recycling rainwater, and the amount of rainwater collected is small and does not have energy-saving functions. At the same time, the current irrigation water-saving equipment often only saves water through functions such as collecting rainwater or water-saving valves, and the water-saving effect is limited. At the same time, it is impossible to adjust the pressure of the water outflow of the constant pressure throttling during irrigation; Therefore, in view of the above problems, water-saving equipment for surface water irrigation is proposed. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present application provides a water-saving device for surface water irrigation to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions: water-saving equipment for surface water irrigation, including a water storage tank, the top of the water storage tank is connected to a support frame by bolts, the top of the support frame is connected to a guide ramp by bolts, the edges of both sides of the guide ramp are provided with guide baffles, the center of the guide ramp is connected to a solar photovoltaic panel, the edge of the outer wall of one side of the bottom of the guide ramp is connected to a water collecting trough, the lowest position of the center of the water collecting trough is provided with a drain outlet, the bottom of the drain outlet is connected to a conduit, the end of the conduit away from the drain outlet is connected to the water storage tank, and the A filter screen is connected to the top of the drain outlet, a water receiving pipe is connected to the upper side of one side of the water tank, a central axis is connected to the center of the top inner wall of the water tank through a bearing, a stirring paddle is arranged on the outer wall of the central axis, a servo motor is provided on the top outer wall of the water tank, an output end of the servo motor is connected to the central axis, a liquid level sensor is provided on the inner wall of one side of the top of the water tank, an air pump is provided on one side of the water tank, an air pipe is connected to the output end of the air pump, an end of the air pipe away from the air pump passes through the water tank and is connected to a nozzle, and a one-way valve is provided in the middle of the air pipe.

[0005] Preferably, a guide pipe is connected to the bottom of one side of the water storage tank, a water pump is arranged in the middle of the guide pipe, one end of the guide pipe is connected to a water-saving valve, a fixing rod is connected to the inner side of the water-saving valve, a blocking plug is arranged in the cavity of the water-saving valve, one end of the blocking plug abuts against the fixing rod, an end of the blocking plug away from the fixing rod is connected to a push rod, a limiting plate is arranged on the inner side of the water-saving valve, the push rod passes through the middle of the limiting plate, a spring is sleeved on the outer wall of the push rod, one end of the spring abuts against the limiting plate.

[0006] Preferably, a limiting groove is provided on the inner wall of one side of the top of the water-saving valve, a guide rod is connected to the middle of the limiting groove, a sliding block is sleeved on the outer wall of the guide rod, and the sliding block is embedded in the inside of the limiting groove, and the bottom end of the sliding block is connected to the limiting plate.

[0007] Preferably, an inner wall on one side of the water-saving valve is connected to a threaded barrel via a bearing, an inner wall on one side of the threaded barrel is threadedly connected to a threaded push rod, an end of the threaded push rod away from the threaded barrel is connected to a limit plate, an outer wall on one side of the water-saving valve is connected to a No. 2 servo motor, and an output end of the No. 2 servo motor is connected to the threaded barrel.

[0008] Preferably, a water outlet is provided on a side of the water-saving valve adjacent to the second servo motor, and the water outlet is connected to an irrigation sprinkler head through a conduit. An energy storage unit is provided on one side of the water tank, and the energy storage unit is connected to the solar photovoltaic panel through wires and an inverter.

[0009] Preferably, a nutrient solution cylinder is provided on one side of the servo motor, and an infusion tube is connected to one side of the bottom of the nutrient solution cylinder. The end of the infusion tube away from the nutrient solution cylinder passes through the outer wall of the water tank and extends to the inside of the water tank. A solenoid valve is provided in the middle of the infusion tube.

[0010] Preferably, a controller is provided on the side of the servo motor away from the nutrient solution cylinder, and the controller is connected to the solenoid valve, the liquid level sensor, the servo motor, the second servo motor and the water pump through wires.

[0011] Preferably, the inner wall of the water tank is provided with a cleaning mechanism, which includes an adjusting ring, a scraper, a limiting rod, a push-pull rod, a handle and a sewage outlet, and the outer wall of the adjusting ring is connected to the scraper, and the outer wall of the scraper abuts against the inner wall of the water tank.

[0012] Preferably, a limit rod is connected to the inner side of the water tank, the limit rod passes through the middle of the adjusting ring, a push-pull rod is connected to the upper side of the adjusting ring away from the limit rod, the end of the push-pull rod away from the adjusting ring passes through the water tank and is connected to a handle, and a sewage outlet is provided on the bottom side of the water tank.

[0013] Technical effects and advantages of this application: Compared with the existing technology, the water-saving equipment for surface water irrigation can divert and collect rainfall rainwater through the diversion ramp. The cross-sectional area of ​​the diversion ramp is larger than that of the water storage tank, which can improve the water storage efficiency of rainwater. At the same time, the solar photovoltaic panel arranged on the surface of the diversion ramp can convert solar energy into electricity to power the device on sunny days, thereby achieving energy-saving effect. After rainwater drops onto the surface of the diversion ramp, it will automatically flow to the water collection tank for collection due to gravity. After entering the water collection tank, the rainwater is filtered by the filter cover and then flows to the water storage tank through the conduit for collection so as to use it for subsequent irrigation, thereby saving a certain amount of irrigation water.

[0014] Compared with the prior art, the water-saving equipment for surface water irrigation can drive the central axis to rotate through a servo motor, and the rotation of the central axis drives the stirring paddle to rotate. The rotation of the stirring paddle drives the water in the water tank to stir, thereby facilitating the mixing of the nutrient solution and water while allowing the water and air to be fully mixed. The air pump is used to fill the water tank with air through the air guide pipe and the nozzle, so that the water contains a large number of bubbles. The water is full of bubbles, which increases the overall volume of the water but does not increase the mass of the water, thereby reducing the actual volume of water passing through the pipe, resulting in a decrease in the discharge rate. In addition, the bubbles may adhere to the pipe wall during the rising process, further reducing the effective flow area and affecting the water flow rate, so that the actual mass of the outflowing water is reduced compared to the normal outflow, thereby improving the water-saving effect.

[0015] Compared with the prior art, the water-saving device for surface water irrigation uses water to push the blocking plug to translate when the water flow pressure gradually increases, thereby bringing the blocking plug closer to the water outlet of the water-saving valve. At the same time, the blocking plug moves to squeeze the spring, and the spring contracts under pressure, so that the blocking plug and the water outlet of the water-saving valve are closer, thereby reducing the effective water supply area, thereby reducing the output water flow. When the water supply pressure is low, the water flow cannot push the blocking plug, so that the water flow can maintain the current gap to pass through, thereby realizing the function of constant pressure throttling. The threaded barrel can be driven to rotate by the No. 2 servo motor, and the rotation of the threaded barrel drives the threaded push rod to perform telescopic movement. The movement of the threaded push rod pushes the limit plate to translate, thereby facilitating the squeezing or relaxation of the spring, so as to adjust the pressure of the water flow passing through, so as to adjust water flows with different pressures. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the three-dimensional structure of the water storage tank for this application; Figure 3 This is a schematic diagram of the guide inclined plate structure of this application; Figure 4 This is a schematic diagram of the water-saving valve structure of this application; Figure 5 This is a schematic diagram of the front structure of the present application; Figure 6 This is a schematic diagram of the water collection tank structure of this application; Figure 7 This is a schematic diagram of the cleaning component structure of this application.

[0017] The accompanying drawings are marked as follows: 1, water storage tank; 2, support frame; 3, guide ramp; 4, guide baffle; 5, solar photovoltaic panel; 6, water collection tank; 7, drain outlet; 8, conduit; 9, filter cover; 10, water connection pipe; 11, central axis; 12, stirring paddle; 13, servo motor; 14, liquid level sensor; 15, air pump; 16, air guide pipe; 17, nozzle; 18, one-way valve; 19, guide pipe; 20, water pump; 21, water-saving valve; 211, fixing rod; 22, blocking plug; 23. Push rod; 24. Limit plate; 25. Spring; 26. Limit groove; 27. Guide rod; 28. Sliding block; 29. ​​Threaded barrel; 30. Threaded push rod; 31. No. 2 servo motor; 32. Water outlet; 33. Irrigation sprinkler head; 34. Energy storage unit; 35. Nutrient solution cylinder; 36. Infusion tube; 37. Solenoid valve; 38. Controller; 39. Cleaning mechanism; 40. Adjusting ring; 41. Scraper; 42. Limit rod; 43. Push-pull rod; 44. Handle; 45. Sewage outlet. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. Example 1

[0019] As attached Figures 1 to 6The water-saving equipment for surface water irrigation shown in the figure comprises a water storage tank 1, the top of the water storage tank 1 is connected to a support frame 2 by bolts, the top of the support frame 2 is connected to a guide ramp 3 by bolts, the edges of both sides of the guide ramp 3 are provided with guide baffles 4, the center of the guide ramp 3 is connected to a solar photovoltaic panel 5, the edge of the outer wall of one side of the bottom of the guide ramp 3 is connected to a water collecting trough 6, the lowest position of the center of the water collecting trough 6 is provided with a drain port 7, the bottom of the drain port 7 is connected to a conduit 8, the end of the conduit 8 away from the drain port 7 is connected to the water storage tank 1, the top of the drain port 7 is connected to a filter screen cover 9, and the upper side of the water storage tank 1 is connected to a water receiving pipe 10 A central shaft 11 is connected to the center of the top inner wall of the water storage tank 1 through a bearing, and a stirring paddle 12 is arranged on the outer wall of the central shaft 11. A servo motor 13 is arranged on the top outer wall of the water storage tank 1, and the output end of the servo motor 13 is connected to the central shaft 11. A liquid level sensor 14 is arranged on the inner wall of one side of the top of the water storage tank 1. An air pump 15 is arranged on one side of the water storage tank 1, and the output end of the air pump 15 is connected to an air guide pipe 16. The end of the air guide pipe 16 away from the air pump 15 passes through the water storage tank 1 and is connected to a nozzle 17. A one-way valve 18 is arranged in the middle of the air guide pipe 16. The rainwater can be diverted and collected through the guide inclined plate 3. The cross-sectional area of ​​the inclined plate 3 is larger than that of the water storage tank 1, which can improve the water storage efficiency of rainwater. At the same time, the solar photovoltaic panel 5 arranged on the surface of the guide inclined plate 3 can convert solar energy into electrical energy to power the device on sunny days, which has an energy-saving effect. After rainwater drops onto the surface of the guide inclined plate 3, it will automatically flow to the water collection tank 6 for collection due to gravity. After the rainwater enters the water collection tank 6, it is filtered by the filter cover 9 and then flows to the water storage tank 1 through the conduit 8 for collection, so as to be used for subsequent irrigation water, thus saving a certain amount of irrigation water. The central shaft 11 can be driven to rotate by the servo motor 13, and the rotation of the central shaft 11 drives the stirring paddle 12 to rotate, and the stirring paddle 12 rotates The water in the water tank 1 is driven to stir so as to facilitate the mixing of the nutrient solution and the water, and at the same time the water and the air are fully mixed. The air pump 15 is cooperated with to fill the air inside the water tank 1 through the air guide pipe 16 and the nozzle 17, so that a large number of bubbles are contained in the water. The water is full of bubbles, which increases the overall volume of the water, but does not increase the quality of the water, thereby reducing the volume of water actually passing through the pipe, resulting in a decrease in the discharge speed. In addition, the bubbles may adhere to the pipe wall during the rising process, further reducing the effective flow area and affecting the water flow speed, so that the actual quality of the outflowing water will be reduced compared with the normal outflow, thereby improving the water-saving effect. Example 2

[0020] Based on Example 1, the solution in Example 1 is further detailed in combination with the following specific working method. Figures 1 to 7 As shown, see the following description for details: As a preferred embodiment, a guide pipe 19 is connected to the bottom of one side of the water storage tank 1, a water pump 20 is arranged in the middle of the guide pipe 19, one end of the guide pipe 19 is connected to a water-saving valve 21, a fixed rod 211 is connected to the inner side of the water-saving valve 21, a blocking plug 22 is arranged in the cavity of the water-saving valve 21, one end of the blocking plug 22 abuts against the fixed rod 211, and a push rod 23 is connected to the end of the blocking plug 22 away from the fixed rod 211, a limiting plate 24 is arranged on the inner side of the water-saving valve 21, the push rod 23 runs through the middle of the limiting plate 24, and a spring 25 is sleeved on the outer wall of the push rod 23, and one end of the spring 25 abuts against the limiting plate 24. In particular, the water in the water storage tank 1 can be pumped into the guide pipe 19 through the water pump 20. The water in the guide pipe 19 flows to the water-saving valve 21 and is blocked by the blocking plug 22. When the water flow pressure gradually increases, the water flow pushes the blocking plug 22 to move horizontally, so that the blocking plug 22 is close to the water outlet of the water-saving valve 21. At the same time, the blocking plug 22 moves the extrusion spring 25, and the spring 25 is compressed and contracts. The blocking plug 22 is close to the water outlet of the water-saving valve 21, thereby reducing the effective water supply area, thereby reducing the output water flow. When the water supply pressure is small, the water flow cannot push the blocking plug 22, so that the water flow can maintain the current gap to pass through, thereby realizing the function of constant pressure throttling.

[0021] As a preferred embodiment, a limiting groove 26 is provided on the inner wall of one side of the top of the water-saving valve 21, and a guide rod 27 is connected to the middle of the limiting groove 26. A sliding block 28 is sleeved on the outer wall of the guide rod 27, and the sliding block 28 is embedded in the interior of the limiting groove 26. The bottom end of the sliding block 28 is connected to the limiting plate 24, wherein the guide rod 27 plays the role of limiting the sliding block 28 so that the limiting sliding block 28 can move smoothly, and the movement of the limiting sliding block 28 can drive the limiting plate to perform translational movement.

[0022] As a preferred embodiment, the inner wall of one side of the water-saving valve 21 is connected to a threaded barrel 29 through a bearing, and the inner wall of one side of the threaded barrel 29 is threadedly connected to a threaded push rod 30, and the end of the threaded push rod 30 away from the threaded barrel 29 is connected to the limit plate 24, and the outer wall of one side of the water-saving valve 21 is connected to a No. 2 servo motor 31, and the output end of the No. 2 servo motor 31 is connected to the threaded barrel 29, wherein the No. 2 servo motor 31 can drive the threaded barrel 29 to rotate, and the rotation of the threaded barrel 29 drives the threaded push rod 30 to perform telescopic movement, and the movement of the threaded push rod 30 pushes the limit plate 24 to perform translational movement, thereby facilitating the squeezing or relaxation adjustment of the spring 25, so as to adjust the pressure of the water flow passing through, so as to adjust water flows with different pressures.

[0023] As a preferred embodiment, a water outlet 32 ​​is provided on one side of the water-saving valve 21 adjacent to the second servo motor 31, and the water outlet 32 ​​is connected to the irrigation sprinkler head 33 through a conduit. An energy storage unit 34 is provided on one side of the water tank 1, and the energy storage unit 34 is connected to the solar photovoltaic panel 5 through wires and an inverter, wherein the electricity generated by the solar photovoltaic panel 5 is stored in the energy storage unit 34 through the inverter and wires, and the energy storage unit 34 can be powered to a certain extent for the components in the device, thereby saving energy consumption.

[0024] As a preferred embodiment, a nutrient solution cylinder 35 is provided on one side of the servo motor 13, and an infusion tube 36 is connected to one side of the bottom of the nutrient solution cylinder 35. The end of the infusion tube 36 away from the nutrient solution cylinder 35 passes through the outer wall of the water tank 1 and extends to the interior of the water tank 1. A solenoid valve 37 is provided in the middle of the infusion tube 36, wherein the nutrient solution required for irrigation can be stored in the nutrient solution cylinder 35. By opening the solenoid valve 37, the nutrient solution can flow into the water tank 1 through the infusion tube 36, so as to mix the irrigation water and the nutrient solution to improve the irrigation effect.

[0025] As a preferred embodiment, a controller 38 is provided on the side of the servo motor 13 away from the nutrient solution cylinder 35, and the controller 38 is connected to the solenoid valve 37, the liquid level sensor 14, the servo motor 13, the second servo motor 31 and the water pump 20 through wires, wherein the controller 38 is a control unit, and the device can be controlled by the controller 38 to perform water-saving processing.

[0026] As a preferred embodiment, the inner wall of the water tank 1 is provided with a cleaning mechanism 39, which includes an adjusting ring 40, a scraper 41, a limiting rod 42, a push-pull rod 43, a handle 44 and a sewage outlet 45. The outer wall of the adjusting ring 40 is connected to the scraper 41, and the outer wall of the scraper 41 abuts against the inner wall of the water tank 1. After long-term use, a large amount of dirt will adhere to the inner wall of the water tank 1. The cleaning mechanism can be used to clean the inner wall of the water tank 1 to avoid a large amount of dirt adhering to it, thereby affecting the water quality of the irrigation water.

[0027] As a preferred embodiment, a limit rod 42 is connected to the inner side of the water tank 1, and the limit rod 42 passes through the middle of the adjusting ring 40. A push-pull rod 43 is connected to the upper side of the adjusting ring 40 away from the limit rod 42. The end of the push-pull rod 43 away from the adjusting ring 40 passes through the water tank 1 and is connected to a handle 44. A sewage outlet 45 is provided on the bottom side of the water tank 1. When cleaning is required, the sewage outlet 45 is opened, and the handle 44 is repeatedly pulled to drive the push-pull rod 43 to perform reciprocating translational motion in the water tank 1, thereby driving the adjusting ring 40 and the scraper 41 to perform translational motion. The scraper 41 moves horizontally to clean the inner wall of the water tank 1, and the sludge is discharged through the sewage outlet 45, thereby improving the cleanliness of the water tank 1.

[0028] The working process of the present application is as follows: first, the rainwater can be diverted and collected by the diversion inclined plate 3. The cross-sectional area of ​​the diversion inclined plate 3 is larger than that of the water storage tank 1, which can improve the water storage efficiency of rainwater. At the same time, the solar photovoltaic panel 5 arranged on the surface of the diversion inclined plate 3 can convert solar energy into electrical energy to power the device on sunny days, thereby achieving energy-saving effect. After rainwater drops onto the surface of the diversion inclined plate 3, it will automatically flow to the water collection tank 6 for collection due to gravity. After the rainwater enters the water collection tank 6, it is filtered by the filter cover 9 and then flows to the water storage tank 1 through the conduit 8 for collection, so as to use it for subsequent irrigation, thus saving a certain amount of irrigation water. The servo motor 13 can drive the central shaft 11 to The central shaft 11 rotates, the central shaft 11 rotates to drive the stirring paddle 12 to rotate, the stirring paddle 12 rotates to drive the water in the water storage tank 1 to stir, so as to facilitate the mixing of the nutrient solution and the water, and at the same time make the water and the air fully mixed, cooperate with the air pump 15 to fill the water storage tank 1 with air through the air guide pipe 16 and the nozzle 17, so that there are a lot of bubbles in the water, and the water is full of bubbles, which increases the overall volume of the water, but does not increase the quality of the water, thereby reducing the volume of water actually passing through the pipe, resulting in a decrease in the discharge speed. In addition, the bubbles may adhere to the pipe wall during the rising process, further reducing the effective flow area, affecting the water flow speed, so that the actual outflow of the water flow The mass will be reduced compared with the normal outflow, thereby improving the water-saving effect. The water in the water storage tank 1 can be pumped into the guide pipe 19 through the water pump 20. The water in the guide pipe 19 flows to the water-saving valve 21 and is blocked by the blocking plug 22. When the water flow pressure gradually increases, the water flow pushes the blocking plug 22 to move horizontally, so that the blocking plug 22 and the water outlet of the water-saving valve 21 are close. At the same time, the blocking plug 22 moves to squeeze the spring 25, and the spring 25 is compressed and contracted. The blocking plug 22 and the water outlet of the water-saving valve 21 are close to each other, thereby reducing the effective water supply area, thereby reducing the output water flow. When the water supply pressure, when the water pressure is small, the water flow cannot push the blocking plug 22, so that the water flow can maintain the current gap. The function of constant pressure throttling is thereby realized. The threaded barrel 29 can be driven to rotate by the No. 2 servo motor 31. The rotation of the threaded barrel 29 drives the threaded push rod 30 to perform telescopic movement. The threaded push rod 30 moves to push the limit plate 24 to perform translational movement, thereby facilitating the squeezing or relaxation adjustment of the spring 25, so as to adjust the pressure of the water flow passing through, so as to adjust the water flow with different pressures. The nutrient solution required for irrigation can be stored in the nutrient solution barrel 35. By opening the solenoid valve 37, the nutrient solution can flow into the water storage tank 1 through the infusion tube 36, so as to mix the irrigation water and the nutrient solution to improve the irrigation effect. After long-term use, a large amount of dirt will adhere to the inner wall of the water storage tank 1. When cleaning is required, the drain outlet 45 is opened, and the handle 44 is pulled repeatedly to drive the push-pull rod 43 to perform reciprocating translational motion in the water tank 1, thereby driving the adjustment ring 40 and the scraper 41 to perform translational motion. The scraper 41 translates to clean the inner wall of the water tank 1, and the sludge is discharged through the drain outlet 45, thereby improving the cleanliness of the water tank 1 and avoiding a large amount of dirt adhesion that affects the water quality of the irrigation water. The above is the working principle of the water-saving equipment for surface water irrigation.

Claims

1. A water-saving device for surface water irrigation, comprising a water storage tank (1), characterized in that: The top of the water storage tank (1) is connected to a support frame (2) by bolts, the top of the support frame (2) is connected to a guide inclined plate (3) by bolts, the edges of both sides of the guide inclined plate (3) are provided with guide baffles (4), the center of the guide inclined plate (3) is connected to a solar photovoltaic panel (5), the edge of the outer wall of one side of the bottom of the guide inclined plate (3) is connected to a water collecting trough (6), the lowest position of the center of the water collecting trough (6) is provided with a drain outlet (7), the bottom of the drain outlet (7) is connected to a conduit (8), the end of the conduit (8) away from the drain outlet (7) is connected to the water storage tank (1), the top of the drain outlet (7) is connected to a filter screen cover (9), and the upper side of the water storage tank (1) is connected to a connection A water pipe (10), a central shaft (11) is connected to the center of the top inner wall of the water storage tank (1) via a bearing, the outer wall of the central shaft (11) is connected to a stirring paddle (12), a servo motor (13) is provided on the top outer wall of the water storage tank (1), the output end of the servo motor (13) is connected to the central shaft (11), a liquid level sensor (14) is provided on the inner wall of one side of the top of the water storage tank (1), an air pump (15) is provided on one side of the water storage tank (1), the output end of the air pump (15) is connected to an air guide pipe (16), one end of the air guide pipe (16) away from the air pump (15) passes through the water storage tank (1) and is connected to a nozzle (17), and a one-way valve (18) is provided in the middle of the air guide pipe (16).

2. The water-saving device for surface water irrigation according to claim 1, characterized in that: The bottom of one side of the water storage tank (1) is connected to a flow guide pipe (19), a water pump (20) is arranged in the middle of the flow guide pipe (19), one end of the flow guide pipe (19) is connected to a water-saving valve (21), one side of the interior of the water-saving valve (21) is connected to a fixing rod (211), a blocking plug (22) is arranged in the cavity of the water-saving valve (21), one end of the blocking plug (22) is in contact with the fixing rod (211), one end of the blocking plug (22) is connected to a push rod (23) away from the fixing rod (211), a limit plate (24) is arranged in the interior of the water-saving valve (21), the push rod (23) passes through the middle of the limit plate (24), a spring (25) is sleeved on the outer wall of the push rod (23), one end of the spring (25) is in contact with the limit plate (24).

3. The water-saving device for surface water irrigation according to claim 2, characterized in that: A limiting groove (26) is provided on the inner wall of one side of the top of the water-saving valve (21); a guide rod (27) is connected to the middle of the limiting groove (26); a sliding block (28) is sleeved on the outer wall of the guide rod (27); the sliding block (28) is embedded in the limiting groove (26); and the bottom end of the sliding block (28) is connected to the limiting plate (24).

4. The water-saving device for surface water irrigation according to claim 3, characterized in that: An inner wall of one side of the water-saving valve (21) is connected to a threaded barrel (29) via a bearing, an inner wall of one side of the threaded barrel (29) is threadedly connected to a threaded push rod (30), an end of the threaded push rod (30) away from the threaded barrel (29) is connected to a limit plate (24), an outer wall of one side of the water-saving valve (21) is connected to a second servo motor (31), and an output end of the second servo motor (31) is connected to the threaded barrel (29).

5. The water-saving device for surface water irrigation according to claim 4, characterized in that: A water outlet (32) is provided on one side of the water-saving valve (21) adjacent to the second servo motor (31), and the water outlet (32) is connected to an irrigation sprinkler head (33) via a conduit. An energy storage unit (34) is provided on one side of the water storage tank (1), and the energy storage unit (34) is connected to the solar photovoltaic panel (5) via an electric wire and an inverter.

6. The water-saving device for surface water irrigation according to claim 1, characterized in that: A nutrient solution cylinder (35) is disposed on one side of the servo motor (13); a liquid infusion tube (36) is connected to one side of the bottom of the nutrient solution cylinder (35); an end of the liquid infusion tube (36) away from the nutrient solution cylinder (35) passes through the outer wall of the water storage tank (1) and extends to the interior of the water storage tank (1); a solenoid valve (37) is disposed in the middle of the liquid infusion tube (36).

7. The water-saving device for surface water irrigation according to claim 6, characterized in that: A controller (38) is provided on a side of the servo motor (13) away from the nutrient solution cylinder (35); the controller (38) is connected to the solenoid valve (37), the liquid level sensor (14), the servo motor (13), the second servo motor (31), and the water pump (20) via electric wires.

8. The water-saving device for surface water irrigation according to claim 1, characterized in that: The inner wall of the water storage tank (1) is provided with a cleaning mechanism (39), the cleaning mechanism (39) comprising an adjusting ring (40), a scraper (41), a limiting rod (42), a push-pull rod (43), a handle (44) and a sewage outlet (45), the outer wall of the adjusting ring (40) is connected to the scraper (41), and the outer wall of the scraper (41) abuts against the inner wall of the water storage tank (1).

9. The water-saving device for surface water irrigation according to claim 8, characterized in that: A limiting rod (42) is connected to one side of the interior of the water storage tank (1), the limiting rod (42) passes through the middle of the adjusting ring (40), a push-pull rod (43) is connected to the upper side of the adjusting ring (40) away from the limiting rod (42), an end of the push-pull rod (43) away from the adjusting ring (40) passes through the water storage tank (1) and is connected to a handle (44), and a sewage outlet (45) is provided on one side of the bottom of the water storage tank (1).

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