A water-saving irrigation device for farmland

Abstract

The application discloses a water-saving irrigation equipment for farmland, which comprises a mobile base, a water storage bucket, a spraying device and a filtering submersible pump, a plurality of groups of mobile tires are connected to the bottom of the mobile base, the water storage bucket is connected to the top of the mobile base, a pressurized water pump is connected to the bottom of the water storage bucket, a water delivery pipe is connected into the pressurized water pump, the spraying device is connected to the end of the water delivery pipe far from the pressurized water pump, a water pumping pipe is connected to one side of the water storage bucket, the filtering submersible pump is connected to the end of the water pumping pipe far from the water storage bucket, a plurality of groups of connecting floating balls are connected to the top of the filtering submersible pump, and a water inlet filtering device is connected to the outside of the filtering submersible pump. The water-saving irrigation equipment can spray farmland by pumping nearby stream water, river water or well water, filter the water during pumping, realize water-saving irrigation, has a wide spraying range, can move to spray and realize water-saving irrigation of large farmland.

Description

Technical Field

[0001] The present invention relates to the technical field of farmland irrigation, in particular to water-saving irrigation equipment for farmland. Background Art

[0002] Water-saving irrigation refers to a comprehensive approach that efficiently utilizes precipitation and irrigation water based on crop water requirements and local water supply conditions to achieve optimal economic, social, and ecological benefits for agriculture. Currently, water-saving irrigation projects are developing rapidly and in diverse forms, generating significant economic and social benefits. The development of water-saving irrigation is primarily reflected in the following areas: pipe irrigation, sprinkler irrigation, micro-irrigation, and infiltration irrigation.

[0003] Due to the low construction standards of irrigation facilities in the current irrigation areas, insufficient funds for renovation and maintenance, untimely facility updates and maintenance, extensive water management methods, and relatively backward field irrigation technology, coupled with the low channel lining rate in the irrigation areas, most of which are earthen channels, there are large leakage losses during water transmission and distribution, and a large amount of irrigation water is wasted. In addition, the water used for irrigation in some areas is drinking water, which cannot be adapted to local conditions. This is too wasteful for areas with scarce water resources.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a water-saving irrigation equipment for farmland is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a water-saving irrigation device for farmland to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a water-saving irrigation equipment for farmland, comprising a mobile base, a water storage barrel, a spraying device and a filtering submersible pump, the bottom of the mobile base is connected to multiple sets of mobile tires, and the water storage barrel is connected to the top of the mobile base, and the top of the water storage barrel is connected to a barrel cover, the bottom of the water storage barrel is connected to a pressurized water pump, and the pressurized water pump is connected to a water pipe, the spraying device is connected to the end of the water pipe away from the pressurized water pump, the outside of the spraying device is connected to a spraying support device, one side of the water storage barrel is connected to a pumping pipe, and the filtering submersible pump is connected to the end of the pumping pipe away from the water storage barrel, the top of the filtering submersible pump is connected to multiple sets of connecting floats, and the outside of the filtering submersible pump is connected to a water inlet filter device.

[0007] Furthermore, the spraying device includes a spraying pipe and a sprinkler nozzle, and the sprinkler nozzle is connected to the top of the spraying pipe, and the bottom end of the spraying pipe is connected to a connecting elbow, and a spraying connection bearing is provided at the connection between the connecting elbow and the spraying pipe, the end of the connecting elbow away from the spraying pipe is connected to the water pipe, and the spraying pipe is connected to a flow meter.

[0008] Further, the spraying support device comprises multiple groups of supporting legs and a supporting connecting plate, the multiple groups of supporting legs are connected to the bottom of the supporting connecting plate, the spraying pipe is connected in the supporting connecting plate, the top of the supporting connecting plate is connected with a rotating motor, and one side of the rotating motor is connected with an electric actuator.

[0009] Further, the supporting connecting plate is provided with a transmission gear, the inner side of the transmission gear is connected with a water pipe clamping block, the connection part of the water pipe clamping block and the transmission gear is provided with a rotating connection bearing, the spraying pipe is connected in the water pipe clamping block and the rotating connection bearing, the rotating motor is connected with a driving gear, and the driving gear and the transmission gear are mutually engaged.

[0010] Further, the water inlet filtering device comprises a coarse filter cylinder, a fine filter cylinder and a counterweight, the fine filter cylinder is connected in the coarse filter cylinder, the counterweight is arranged at the bottom of the coarse filter cylinder, the coarse filter cylinder is provided with multiple groups of coarse filter holes, and the fine filter cylinder is provided with multiple groups of fine filter holes.

[0011] Further, the bottom of the fine filter cylinder is provided with a sealing connecting block, the bottom of the coarse filter cylinder is provided with a sealing sleeve ring, the sealing connecting block is inserted in the sealing sleeve ring, the top of the counterweight is connected with a connecting threaded block, and the connecting threaded block is connected to the bottom of the sealing connecting block.

[0012] Further, the filtering submersible pump comprises a water pumping cylinder and a one-way valve, the one-way valve is connected to the top of the water pumping cylinder, the water pumping cylinder is inserted in the fine filter cylinder, the water pumping cylinder is provided with multiple groups of water inlet holes, and the connection part of the fine filter cylinder, the water pumping cylinder and the coarse filter cylinder is provided with a sealing rubber gasket.

[0013] Further, the bottom of the water pumping cylinder is connected with a waterproof motor box, the waterproof motor box is provided with a water pumping motor, the water pumping cylinder is provided with a connecting shaft, the connecting shaft is connected to the top of the water pumping motor, and the connecting shaft is connected with multiple groups of water pumping impellers.

[0014] Further, the connection part of the one-way valve and the water pumping cylinder is provided with a water outlet connecting plate, the connecting shaft is connected to the bottom center position of the water outlet connecting plate, the connection part of the connecting shaft and the water outlet connecting plate is provided with a water pumping connecting bearing, and multiple groups of connecting water holes are arranged between the water pumping connecting bearing and the water outlet connecting plate.

[0015] Further, the one-way valve is provided with a valve core connecting plate and a valve core sealing plate, the valve core connecting plate is connected with a valve core, the valve core is provided with multiple groups of water pumping and water outlet holes, the bottom of the valve core is connected with a sealing water blocking plate, and the sealing water blocking plate and the valve core connecting plate are connected with a connecting spring.

[0016] The present invention provides a water-saving irrigation device for farmland, which has the following beneficial effects: it can extract nearby stream water, river water or well water for spraying farmland according to the water demand pattern of crops and local water supply conditions, and filter the water during the extraction process, thereby achieving water-saving irrigation and saving clean water sources. It also has a wide spraying range and can perform quantitative spraying, thereby avoiding waste of spraying water. It can also perform mobile spraying, thereby achieving water-saving irrigation for large areas of farmland.

[0017] According to the crop water demand pattern and local water supply conditions, nearby stream water, river water or well water is extracted to spray the farmland. After the water inlet filter device is put into the water, the counterweight block and the connecting float ball enable the water inlet filter device to be balanced in the water to prevent the filter submersible pump from sinking to the bottom, which may cause damage or blockage of the filter submersible pump. Before entering the filter submersible pump, the irrigation water first enters the coarse filter cartridge and is preliminarily filtered by the coarse filter holes on the coarse filter cartridge, thereby blocking river shrimps, fish and crabs or large stones and gravel in the irrigation water outside the coarse filter cartridge. The irrigation water that has passed the preliminary filtration enters the fine filter cartridge and is filtered again through the fine filter holes to filter out smaller particles of impurities. The sealing ring can prevent impurities from entering the connection, and the sealing gasket at the connection between the fine filter cartridge, the pumping cylinder and the coarse filter cartridge can prevent unfiltered irrigation water from entering the filter submersible pump through the interface. The irrigation water that has passed the double-layer filtration is pumped to the one-way valve through the pumping cylinder.

[0018] The irrigation water enters the pump cylinder from the water inlet hole at the pump cylinder, and the pumping motor in the waterproof motor box drives the connecting shaft and the pumping impeller on the connecting shaft to rotate. During the rotation, the pumping impeller pumps the irrigation water into the one-way valve, and transports the irrigation water from the one-way valve to the water storage barrel through the pumping water pipe. The connecting shaft rotates in the pumping connecting bearing on the water outlet connecting plate. When the pump cylinder pumps the irrigation water to the one-way valve, the irrigation water enters the one-way valve through the connecting water hole at the connection gap between the water outlet connecting plate and the pumping connecting bearing. When the irrigation water enters the one-way valve, the irrigation water is pumped into the one-way valve by the irrigation water. The sealing water baffle is pushed up, and in the process of being pushed up, the sealing water baffle drives the valve core to move upward in the valve core connecting plate, and in the process of moving, the connecting spring is squeezed to deform, so that the sealing water baffle moves away from the valve core sealing plate, thereby forming a passage, and the irrigation water flows out from the water pumping hole on the valve core connecting plate. After the pumping work stops, the connecting spring rebounds and resets, thereby driving the sealing water baffle to cover the valve core sealing plate tightly, thereby completing the closed circuit, preventing the spray irrigation water mixed with pesticides and nutrients in the water storage barrel from flowing back into the stream, river or well water, avoiding water pollution;

[0019] The irrigation water in the water storage tank is pressurized by a pressure water pump and transmitted to the water pipe, and is then sent to the spraying device by the water pipe for spraying. The flow rate of irrigation water passing through the spraying pipe is detected and recorded by a flow meter, and the data detected by the flow meter is transmitted to the electric actuator, and the rotating motor is controlled according to the flow data. The rotating motor drives the driving gear to rotate, and the driving gear drives the transmission gear to rotate, so that the transmission gear drives the water pipe clamp and the spraying pipe connected to it to rotate in the connecting bearing, thereby driving the spraying device to rotate and spray, thereby completing water-saving spraying of large areas of farmland, thereby avoiding waste of spraying water. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of the main body of a water-saving irrigation device for farmland according to the present invention;

[0021] Figure 2 This is a schematic structural diagram of a connection and fixing structure of a spraying device of water-saving irrigation equipment for farmland according to the present invention;

[0022] Figure 3 This is a schematic top view of the steering structure of a spraying device of a water-saving irrigation device for farmland according to the present invention;

[0023] Figure 4 This is a schematic structural diagram of a side cross-section of a steering structure of a spraying device of water-saving irrigation equipment for farmland according to the present invention;

[0024] Figure 5 This is a structural schematic diagram of a filtering submersible pump for water-saving irrigation equipment for farmland according to the present invention;

[0025] Figure 6 This is a schematic structural diagram of a side cross-section of a filtering submersible pump for water-saving irrigation equipment for farmland according to the present invention;

[0026] Figure 7 This is a structural schematic diagram of the connection structure of a water inlet filter device of a water-saving irrigation device for farmland according to the present invention;

[0027] Figure 8 This is a schematic structural diagram of a side cross-section of a filtering submersible pump for water-saving irrigation equipment for farmland according to the present invention;

[0028] Figure 9 This is a schematic structural diagram of a side cross-section of a one-way valve for water-saving irrigation equipment for farmland according to the present invention;

[0029] Figure 10 This is a schematic top view of the structure of a water outlet connection plate of a water-saving irrigation device for farmland according to the present invention;

[0030] Figure 11The present invention is a schematic top view of the structure of a valve core connecting plate of water-saving irrigation equipment for farmland.

[0031] Figure: 1. Mobile base; 11. Mobile tire; 2. Water storage barrel; 21. Barrel cover; 22. Pressurized water pump; 221. Water supply pipe; 23. Water extraction pipe; 3. Spraying support device; 31. Support leg; 32. Support connecting plate; 321. Transmission gear; 322. Water pipe clamp; 323. Rotating connecting bearing; 33. Rotating motor; 331. Driving gear; 34. Electric actuator; 4. Spraying device; 41. Spraying pipe; 411. Flow meter; 412. Connecting elbow; 413. Spraying connecting bearing; 42. Sprinkler nozzle; 5. Submersible filter pump; 51. Water extraction cylinder; 511. Water inlet hole; 512. Waterproof motor box. 513. Pumping motor; 52. One-way valve; 521. Water outlet connecting plate; 5211. Water connection hole; 522. Valve core sealing plate; 523. Valve core connecting plate; 5231. Pumping outlet hole; 524. Connecting spring; 525. Valve core; 526. Sealing water retaining plate; 53. Water outlet connecting plate; 531. Pumping connection bearing; 54. Pumping impeller; 6. Connecting float; 7. Water inlet filter device; 71. Coarse filter cartridge; 711. Coarse filter hole; 712. Sealing collar; 72. Fine filter cartridge; 721. Fine filter hole; 722. Sealing connecting block; 723. Sealing rubber gasket; 73. Counterweight; 731. Connecting threaded block. DETAILED DESCRIPTION

[0032] See also Figures 1 to 11 The present invention provides a technical solution: a water-saving irrigation equipment for farmland, comprising a mobile base 1, a water storage barrel 2, a spraying device 4 and a filtering submersible pump 5, the bottom of the mobile base 1 is connected to multiple groups of mobile tires 11, and the water storage barrel 2 is connected to the top of the mobile base 1, and the top of the water storage barrel 2 is connected to a barrel cover 21, the bottom of the water storage barrel 2 is connected to a pressurized water pump 22, and the pressurized water pump 22 is connected to a water pipe 221, the spraying device 4 is connected to the end of the water pipe 221 away from the pressurized water pump 22, the outside of the spraying device 4 is connected to a spraying support device 3, one side of the water storage barrel 2 is connected to a pumping water pipe 23, and the filtering submersible pump 5 is connected to the end of the pumping water pipe 23 away from the water storage barrel 2, the top of the filtering submersible pump 5 is connected to multiple groups of connecting floats 6, and the outside of the filtering submersible pump 5 is connected to a water inlet filter device 7;

[0033] The water storage barrel 2 can be opened or closed by the barrel cover 21. According to the spraying requirements, pesticides or nutrients can be added after opening the barrel cover 21. During the spraying work, the filtering submersible pump 5 performs water pumping work. The filtering submersible pump 5 is suspended on the water surface by the connecting float ball 6, which prevents the filtering submersible pump 5 from sinking to the bottom and causing damage or blockage of the filtering submersible pump 5. The irrigation water is sent into the water storage barrel 2 through the water pumping pipe 23. During water pumping, the irrigation water is first filtered by the water inlet filtering device 7 to avoid large impurities blocking the spraying device 4 and affecting the spraying work. The irrigation water in the water storage barrel 2 is pressurized by the pressurizing water pump 22 and transmitted to the water delivery pipe 221. The water delivery pipe 221 sends the irrigation water into the spraying device 4 for spraying work. The spraying device 4 is installed and connected to the mobile base 1 by the spraying support device 3. The mobile base 1 moves by the mobile tire 11 to facilitate large-area irrigation of farmland.

[0034] The spraying device 4 includes a spraying pipe 41 and a sprinkler 42. The sprinkler 42 is connected to the top end of the spraying pipe 41. The bottom end of the spraying pipe 41 is connected with a connecting elbow 412. The connecting elbow 412 is provided with a spraying connecting bearing 413 at the connection with the spraying pipe 41. The end of the connecting elbow 412 away from the spraying pipe 41 is connected with the water delivery pipe 221. The spraying pipe 41 is connected with a flow meter 411. The water delivery pipe 221 sends the spraying pipe 41 to the sprinkler 42 for spraying through the connecting elbow 412. The spraying pipe 41 can rotate in the connecting elbow 412 through the spraying connecting bearing 413 to complete large-area spraying work. The flow of the spraying can be recorded by the flow meter 411 during the spraying process.

[0035] The spraying support device 3 comprises multiple groups of supporting legs 31 and a supporting connecting plate 32, the multiple groups of supporting legs 31 are connected at the bottom of the supporting connecting plate 32, the spraying pipe 41 is connected in the supporting connecting plate 32, the top of the supporting connecting plate 32 is connected with a rotating motor 33, one side of the rotating motor 33 is connected with an electric actuator 34, a transmission gear 321 is arranged in the supporting connecting plate 32, the inner side of the transmission gear 321 is connected with a water pipe clamping block 322, a rotating connecting bearing 323 is arranged at the connecting position of the water pipe clamping block 322 and the transmission gear 321, the spraying pipe 41 is connected in the water pipe clamping block 322 and the rotating connecting bearing 323, a driving gear 331 is connected on the rotating motor 33, the driving gear 331 and the transmission gear 321 are meshed with each other, the spraying device 4 is fixed in the supporting connecting plate 32 by the water pipe clamping block 322, and the supporting connecting plate 32 is supported by the multiple groups of supporting legs 31, the detection data is transmitted to the electric actuator 34 by the flow meter 411, the rotating motor 33 is controlled according to the flow data, the driving gear 331 is driven to rotate by the rotating motor 33, the transmission gear 321 is driven to rotate by the driving gear 331, and the water pipe clamping block 322 and the spraying pipe 41 connected therewith are driven to rotate in the connecting bearing 323 by the transmission gear 321.

[0036] The water inlet filtering device 7 comprises a coarse filter cylinder 71, a fine filter cylinder 72 and a counterweight 73, the fine filter cylinder 72 is connected in the coarse filter cylinder 71, and the counterweight 73 is arranged at the bottom of the coarse filter cylinder 71, a plurality of coarse filter holes 711 are arranged on the coarse filter cylinder 71, and a plurality of fine filter holes 721 are arranged on the fine filter cylinder 72, a sealing connecting block 722 is arranged at the bottom of the fine filter cylinder 72, a sealing sleeve ring 712 is arranged at the bottom of the coarse filter cylinder 71, the sealing connecting block 722 is inserted in the sealing sleeve ring 712, a connecting threaded block 731 is connected at the top of the counterweight 73, and the connecting threaded block 731 is connected at the bottom of the sealing connecting block 722, after the water inlet filtering device 7 is put into water, the water inlet filtering device 7 can be balanced in water through the counterweight 73 and the connecting floating ball 6, so as to facilitate the water pumping work, the counterweight 73 can be connected in the sealing connecting block 722 at the bottom of the fine filter cylinder 72 through the connecting threaded block 731, so as to be replaced and adjusted according to the situation of the irrigation water source, and the sealing sleeve ring 712 can avoid impurities entering the connecting position, before the irrigation water enters the filtering submersible pump 5, the irrigation water first enters the coarse filter cylinder 71, and is preliminarily filtered through the coarse filter holes 711 on the coarse filter cylinder 71, so as to block river shrimps, fishes, crabs or large stone, sand and gravel outside the coarse filter cylinder 71, and the irrigation water after preliminary filtering enters the fine filter cylinder 72 and is filtered again through the fine filter holes 721, so as to filter out smaller impurities.

[0037] The filtering submersible pump 5 includes a water pumping cylinder 51 and a one-way valve 52, and the one-way valve 52 is connected to the top of the water pumping cylinder 51, the water pumping cylinder 51 is inserted into the fine filter cartridge 72, and multiple groups of water inlet holes 511 are provided on the water pumping cylinder 51, and the connection between the fine filter cartridge 72 and the water pumping cylinder 51 and the coarse filter cartridge 71 is provided with a sealing gasket 723, the bottom of the water pumping cylinder 51 is connected to a waterproof motor box 512, and a water pumping motor 513 is provided in the waterproof motor box 512, a connecting shaft 53 is provided in the water pumping cylinder 51, and the connecting shaft 53 is connected to the top of the water pumping motor 513, and multiple groups of water pumping impellers 54 are connected to the connecting shaft 53, the fine filter cartridge 7 The sealing rubber gasket 723 at the connection between the water pump 51 and the coarse filter cartridge 71 prevents unfiltered irrigation water from entering the filtering submersible pump 5 through the interface. The double-filtered irrigation water is pumped through the water pump 51 to the one-way valve 52. The irrigation water enters the water pump 51 through the water inlet 511 of the water pump 51. The pumping motor 513 in the waterproof motor box 512 drives the connecting shaft 53 and the pumping impeller 54 on the connecting shaft 53 to rotate. During the rotation, the pumping impeller 54 pumps the irrigation water into the one-way valve 52, and then transports the irrigation water from the one-way valve 52 to the water storage tank 2 through the pumping pipe 23.

[0038] The connection between the one-way valve 52 and the water pumping cylinder 51 is provided with a water outlet connecting plate 521, and the connected shaft 53 is connected to the bottom center position of the water outlet connecting plate 521, and the connection between the connecting shaft 53 and the water outlet connecting plate 521 is provided with a water pumping connecting bearing 531, and multiple groups of connecting water holes 5211 are provided between the water pumping connecting bearing 531 and the water outlet connecting plate 521. The one-way valve 52 is provided with a valve core connecting plate 523 and a valve core sealing plate 522. , and the valve core connecting plate 523 is connected to the valve core 525, and the valve core 525 is provided with a plurality of water pumping holes 5231, the bottom of the valve core 525 is connected to the sealing water baffle 526, and the sealing water baffle 526 and the valve core connecting plate 523 are connected with a connecting spring 524, the connecting shaft 53 rotates in the pumping connection bearing 531 on the outlet connecting plate 521, and when the pumping cylinder 51 pumps the irrigation water to the one-way valve 52, the irrigation water is pumped out by the one-way valve 52. The connecting water hole 5211 at the connection gap between the outlet connecting plate 521 and the pumping connecting bearing 531 enters the one-way valve 52. When the irrigation water enters the one-way valve 52, the sealing water baffle 526 is pushed up by the irrigation water, and the sealing water baffle 526 drives the valve core 525 to move upward in the valve core connecting plate 523 during the lifting process, and squeezes the connecting spring 524 to deform during the movement, so that the sealing water baffle 526 is moved away from the valve core sealing plate 522, thereby forming a passage, and the irrigation water flows out from the pumping water outlet hole 5231 on the valve core connecting plate 523. After the pumping work stops, the connecting spring 524 rebounds and resets, thereby driving the sealing water baffle 526 to cover the valve core sealing plate 522 tightly, thereby completing the closed circuit, preventing the spray irrigation water mixed with pesticides and nutrients in the water storage barrel 2 from flowing back into the stream, river or well water, thereby avoiding water pollution.

[0039] In summary, when the water-saving irrigation equipment for farmland is used, the spraying device 4 is first fixed to the support connecting plate 32 by the water pipe clamp 322, and the support connecting plate 32 is supported by multiple groups of legs 31, and the water storage barrel 2 is opened or closed by the barrel cover 21. According to the demand for spraying, after opening the barrel cover 21, pesticides or nutrients can be added, and the farmland can be sprayed with nearby stream water, river water or well water according to the crop water demand law and local water supply conditions. After the water inlet filter device 7 is put into the water, the counterweight block 73 and the connecting float 6 enable the water inlet filter device 7 to be balanced in the water, preventing the filter submersible pump 5 from sinking to the bottom, causing damage or blockage of the filter submersible pump 5, and facilitating the pumping work. The counterweight block 73 can be connected to the sealing connection block 722 at the bottom of the fine filter cartridge 72 through the connecting thread block 731, so that it can be replaced and adjusted according to the situation of the irrigation water source, and then the mobile base 1 is moved by the mobile tire 11;

[0040] The irrigation water first enters the coarse filter cylinder 71 before entering the filtering submersible pump 5, and is preliminarily filtered by the coarse filter holes 711 on the coarse filter cylinder 71, so as to block the river shrimps, fish, crabs or large stones and gravel in the irrigation water outside the coarse filter cylinder 71, and the irrigation water after the preliminary filtration enters the fine filter cylinder 72 and is filtered again by the fine filter holes 721, so as to filter out smaller impurities, and the sealing ring 712 can prevent impurities from entering the connection, and the sealing gasket 723 at the connection between the fine filter cylinder 72 and the pumping cylinder 51 and the coarse filter cylinder 71 can prevent the unfiltered irrigation water from entering the filtering submersible pump 5 through the interface, and the irrigation water after the double-layer filtration is pumped to the one-way valve 52 by the pumping cylinder 51, and the irrigation water enters the pumping cylinder 51 through the water inlet hole 511 of the pumping cylinder 51;

[0041] The pumping impeller 54 on the connecting shaft 53 in the waterproof motor box 512 is driven by the pumping motor 513 to rotate, and in the process of rotation, the irrigation water is pumped into the one-way valve 52 by the pumping impeller 54, and is transported to the water storage barrel 2 by the pumping water pipe 23, and the connecting shaft 53 rotates in the pumping connecting bearing 531 on the water outlet connecting plate 521, and when the pumping cylinder 51 pumps the irrigation water to the one-way valve 52, the irrigation water enters the one-way valve 52 through the connecting water hole 5211 at the connecting gap between the water outlet connecting plate 521 and the pumping connecting bearing 531, and when the irrigation water enters the one-way valve 52, the irrigation water lifts the sealing water baffle 526 upward, and in the process of being lifted, the sealing water baffle 526 drives the valve core 525 to move upward in the valve core connecting plate 523, and in the process of moving, the connecting spring 524 is deformed, so that the sealing water baffle 526 is removed from the valve core sealing plate 522, so as to form a passage, and the irrigation water flows out from the pumping water outlet hole 5231 on the valve core connecting plate 523, and after stopping the pumping work, the connecting spring 524 rebounds and resets, so as to cover the valve core sealing plate 522 tightly by the sealing water baffle 526, so as to complete the closed circuit, and prevent the irrigation water mixed with the pesticide nutrient agent in the water storage barrel 2 from flowing back to the stream water, river water or well water, so as to avoid polluting the water quality;

[0042] The irrigation water in the water storage tank 2 is pressurized by the pressurized water pump 22 and transmitted to the water pipe 221, and is then sent to the spraying device 4 by the water pipe 221 for spraying. The flow rate of the irrigation water passing through the spraying pipe 41 is detected and recorded by the flow meter 411, and the data detected by the flow meter 411 is transmitted to the electric actuator 34, and the rotating motor 33 is controlled according to the flow data. The rotating motor 33 drives the driving gear 331 to rotate, and the driving gear 331 drives the transmission gear 321 to rotate, so that the transmission gear 321 drives the water pipe clamp 322 and the spraying pipe 41 connected thereto to rotate in the connecting bearing 323, thereby driving the spraying device 4 to rotate and spray, thereby completing water-saving spraying of a large area of ​​farmland, thereby avoiding waste of spraying water.

[0043] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various implementations with various modifications as suited for specific applications.

Claims

1. A water-saving irrigation device for farmland, characterized by: The invention comprises a mobile base (1), a water storage barrel (2), a spraying device (4) and a filtering submersible pump (5), wherein the bottom of the mobile base (1) is connected to a plurality of mobile tires (11), the water storage barrel (2) is connected to the top of the mobile base (1), and the top of the water storage barrel (2) is connected to a barrel cover (21), the bottom of the water storage barrel (2) is connected to a pressurized water pump (22), and the pressurized water pump (22) is connected to a water pipe (221), the spraying device (4) is connected to the bottom of the water storage barrel (2), and the water supply pipe (221) is connected to the bottom of the water storage barrel (2). ) is connected to one end of the water delivery pipe (221) away from the pressurized water pump (22), the outer side of the spraying device (4) is connected to the spraying support device (3), one side of the water storage barrel (2) is connected to the water pumping pipe (23), and the filtering submersible pump (5) is connected to one end of the water pumping pipe (23) away from the water storage barrel (2), the top of the filtering submersible pump (5) is connected to multiple groups of connecting floats (6), and the outer side of the filtering submersible pump (5) is connected to the water inlet filtering device (7); The water inlet filter device (7) comprises a coarse filter cartridge (71), a fine filter cartridge (72) and a counterweight (73); the fine filter cartridge (72) is connected to the coarse filter cartridge (71), and the counterweight (73) is arranged at the bottom of the coarse filter cartridge (71); the coarse filter cartridge (71) is provided with a plurality of groups of coarse filter holes (711), and the fine filter cartridge (72) is provided with a plurality of groups of fine filter holes (721); a sealing connection block (722) is provided at the bottom of the fine filter cartridge (72), and a sealing collar (712) is provided at the bottom of the coarse filter cartridge (71), and the sealing connection block (722) is plugged into the sealing collar. In the sealing ring (712), the top of the counterweight block (73) is connected to a connecting thread block (731), and the connecting thread block (731) is connected to the bottom of the sealing connection block (722); the filtering submersible pump (5) includes a water pump (51) and a one-way valve (52), and the one-way valve (52) is connected to the top of the water pump (51), and the water pump (51) is inserted into the fine filter cartridge (72). The water pump (51) is provided with multiple groups of water inlet holes (511), and the connection between the fine filter cartridge (72), the water pump (51) and the coarse filter cartridge (71) is provided with a sealing rubber gasket (723); The bottom of the water pumping cylinder (51) is connected to a waterproof motor box (512), and a water pumping motor (513) is provided in the waterproof motor box (512). A connecting shaft (53) is provided in the water pumping cylinder (51), and the connecting shaft (53) is connected to the top of the water pumping motor (513). A plurality of water pumping impellers (54) are connected to the connecting shaft (53); a water outlet connecting plate (521) is provided at the connection between the one-way valve (52) and the water pumping cylinder (51), and the connecting shaft (53) is connected to the bottom center of the water outlet connecting plate (521). The connection between the connecting shaft (53) and the water outlet connecting plate (521) is A pumping connection bearing (531) is provided at the one-way valve (52), and a plurality of water connection holes (5211) are provided between the pumping connection bearing (531) and the water outlet connection plate (521); a valve core connection plate (523) and a valve core sealing plate (522) are provided in the one-way valve (52), and a valve core (525) is connected in the valve core connection plate (523), and a plurality of water pumping outlet holes (5231) are provided on the valve core (525); a sealing water retaining plate (526) is connected to the bottom of the valve core (525), and a connecting spring (524) is connected between the sealing water retaining plate (526) and the valve core connection plate (523).

2. The water-saving irrigation equipment for farmland according to claim 1, characterized in that: The spraying device (4) comprises a spraying pipe (41) and a sprinkler nozzle (42), wherein the sprinkler nozzle (42) is connected to the top end of the spraying pipe (41), and the bottom end of the spraying pipe (41) is connected to a connecting elbow (412), a spraying connection bearing (413) is provided at the connection between the connecting elbow (412) and the spraying pipe (41), an end of the connecting elbow (412) away from the spraying pipe (41) is connected to a water pipe (221), and a flow meter (411) is connected to the spraying pipe (41).

3. The water-saving irrigation equipment for farmland according to claim 2, characterized in that: The spraying support device (3) comprises a plurality of groups of supporting legs (31) and a supporting connecting plate (32), wherein the plurality of groups of supporting legs (31) are connected to the bottom of the supporting connecting plate (32), the spraying pipe (41) is connected inside the supporting connecting plate (32), the top of the supporting connecting plate (32) is connected to a rotating motor (33), and one side of the rotating motor (33) is connected to an electric actuator (34).

4. The water-saving irrigation equipment for farmland according to claim 3, characterized in that: A transmission gear (321) is provided in the support connecting plate (32), and a water pipe clamp (322) is connected to the inner side of the transmission gear (321). A rotation connection bearing (323) is provided at the connection between the water pipe clamp (322) and the transmission gear (321), and the spray pipe (41) is connected in the water pipe clamp (322) and the rotation connection bearing (323). A driving gear (331) is connected to the rotating motor (33), and the driving gear (331) and the transmission gear (321) are meshed with each other.

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