A water-fertilizer integrated automatic irrigation device

Abstract

The present invention provides an integrated water and fertilizer automatic irrigation device, which specifically relates to the technical field of irrigation tools, and comprises a base plate, wherein a controller is fixedly mounted on the upper surface of the base plate, a fertilizer pump is fixedly mounted on the side of the upper surface of the base plate close to the controller, and a fertilizer mixing barrel is also fixedly mounted on the upper surface of the base plate; after one half of the filter screen has filtered for a period of time, the filter screen is automatically driven to move horizontally, so that the one half of the filter screen without impurities attached to the surface is automatically replaced to a use position, thereby ensuring that the filter screen can have a continuous and effective filtering effect, reducing the accumulation of impurities on the flow path of the water source, and improving the effectiveness of the filter screen in filtering impurities in the water source, thereby ensuring the effectiveness of fertilizer-water mixing, avoiding the blockage of branch pipes or irrigation pipes by granular stones in the water, resulting in uneven subsequent fertilizer irrigation, and reducing the physical damage caused to the root system of crops by large granular impurities in the water after entering the soil.

Description

Technical Field

[0001] The invention relates to the technical field of irrigation tools, and in particular provides a water-fertilizer integrated automatic irrigation device. Background Art

[0002] The integrated water-fertilizer automatic irrigation device is usually composed of a water supply pump, a fertilizer-water mixing barrel, a fertilizer pump, a solenoid valve, a sensor, a controller, an irrigation system, etc. The fertilization principle is that in the integrated water-fertilizer machine, the water source is first sent into the fertilizer-water mixing barrel through the water supply pump, and then the fertilizer and water are mixed in the barrel by stirring, and then the fertilizer-water mixture is delivered to the root system of the plant through the fertilizer pump and the irrigation system, thereby effectively fertilizing the crops.

[0003] In the utility model with authorization announcement number CN221283774U, an agricultural water-fertilizer integrated irrigation equipment is disclosed. The irrigation equipment can filter and purify the irrigation water through the water inlet filter mechanism to avoid pipe blockage, which is conducive to smooth irrigation. The outlet pipe and the suction pipe are provided in conjunction with the water pump, so the water required for preparing fertilizer water can be injected into the mixing barrel in a labor-saving and convenient manner.

[0004] Although the above-mentioned water-fertilizer integrated irrigation equipment is provided with a filtering mechanism, after a long period of filtration, impurities on the surface of the filter in the filtering mechanism accumulate too much and cannot be processed in time, which will seriously affect the filtering effect, thereby not only affecting the supply of water sources, but also the impurities attached to the filter net. After being washed by water for a long time, some of the impurities attached to the filter net will be broken and decomposed, causing some impurities in the water to contact and mix with the fertilizer, affecting the quality of the mixture of water and fertilizer, and then reducing the fertilization effect of the fertilizer on crops, and easily causing the pipe or nozzle to be blocked.

[0005] Therefore, the present invention proposes a water-fertilizer integrated automatic irrigation device to make up for and improve the deficiencies of the prior art. Summary of the invention

[0006] In view of the defects existing in the prior art, the present invention provides a water-fertilizer integrated automatic irrigation device, which can effectively solve the relevant technical problems raised by the background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The invention discloses an automatic irrigation device for integrated water and fertilizer, comprising a base plate, a controller, a fertilizer pump and a fertilizer mixing barrel are fixedly installed on the upper surface of the base plate, a drainage pipe is connected to the bottom of the fertilizer mixing barrel, a water inlet pipe is connected to the side of the fertilizer mixing barrel away from the fertilizer pump, a water inlet end of the fertilizer pump is connected to the drainage pipe, a supply main pipe is connected to the water outlet end of the fertilizer pump, and three branch pipes are evenly connected to the supply main pipe, and the device is characterized in that an automatic switching mechanism is provided on the side of the upper surface of the base plate close to the water inlet pipe;

[0009] The automatic switching mechanism includes a box body 1 fixedly connected to the upper surface of the base plate, a connecting pipe is provided in the center of the box body 1 near the water inlet pipe, the connecting pipe is connected to the water inlet pipe and fixedly connected, a box body 2 is detachably connected to the side of the box body 1 away from the connecting pipe, and a water inlet pipe is provided in the center of the box body 2 away from the connecting pipe. An electric slide rail is fixedly installed on one side of the top of the box body 1, and a slider is slidably provided on the electric slide rail. A central grooved plate is fixedly connected to the inside of the box body 1, a circular tube is fixedly provided on the central grooved plate, and one end of the circular tube near the fertilizer mixing barrel is connected to the connecting pipe and fixedly connected, and one end of the circular tube away from the fertilizer mixing barrel is plugged and matched with the water inlet pipe, a through groove is provided in the central grooved plate, a rectangular frame is movably inserted in the through groove, a filter is fixedly provided on the rectangular frame, a vertical rod is fixedly connected to the bottom of the slider, a built-in groove is provided at the lower end of the vertical rod, a built-in spring is fixedly connected to the built-in groove of the vertical rod, and a plug shaft is fixedly connected to the lower end of the built-in spring, the plug shaft is slidably provided in the built-in groove, and the lower end of the plug shaft is plugged and matched with the top of the rectangular frame.

[0010] Preferably, box body 1 and box body 2 are fixed by bolt connection.

[0011] Preferably, a gap is left between a surface of one side of the filter screen close to the second box body and an inner wall of the through groove, and four sealing strips are provided on a surface of one side of the filter screen close to the second box body.

[0012] Preferably, a through opening is provided on one side of the box body, and the rectangular frame is allowed to move through the through opening.

[0013] Preferably, a cross-shaped plug block is provided at the lower end of the plug shaft, a cross-shaped slot is provided at a position of the rectangular frame corresponding to the cross-shaped plug block, and the cross-shaped plug block is inserted into the cross-shaped slot.

[0014] Preferably, an extension plate is fixedly provided on the insertion shaft, a vertical groove is provided on the vertical rod at a position corresponding to the extension plate, and the extension plate passes through the vertical groove and extends to the outside of the vertical rod.

[0015] Preferably, a cooperating flushing mechanism is also included, which includes a small motor fixedly mounted on the top surface of a box body, an output shaft below the small motor passes through the box body and extends to the interior of the box body, two sprockets are rotatably connected to the bottom surface of the box body, a chain is connected between the two sprockets, a reciprocating screw rod is fixedly connected to the center of the top surface of the two sprockets, the top of the reciprocating screw rod close to the small motor is fixedly connected to the output shaft of the small motor, the two reciprocating screw rods are threadedly connected with sleeve blocks, the two sleeve blocks are fixedly connected to an extension rod on one side close to each other, and the two extension rods are fixedly connected to a rectangular nozzle on one end close to each other, and the two rectangular nozzles are both facing the filter and toward The box body is tilted downward, and two limit slot frames are fixedly connected to the bottom surface inside the box body, and the positions of the two limit slot frames correspond to the positions of the two extension rods. The extension rods slide in the adjacent limit slot frames. Both rectangular nozzles are connected with a transverse tube, and a U-shaped hose is commonly connected between the two transverse tubes. A water pump is fixedly installed on the bottom of the outer surface of the box body, and a valve pipe is connected to the water outlet end of the water pump, and the valve pipe is connected to the U-shaped hose. Two electric-controlled valves are symmetrically installed on the U-shaped hose, and the valve pipe is located between the two electric-controlled valves. A water storage cylinder is fixedly installed on the upper surface of the base plate, and a water pumping pipe is connected to the bottom of the water storage cylinder, and the end of the water pumping pipe away from the water storage cylinder is connected to the water inlet end of the water pump.

[0016] Preferably, two guide groove plates are provided at the bottom of the box body 1 and the bottom of the box body 2, and the positions of the two guide groove plates correspond to the positions of the two rectangular nozzles.

[0017] Preferably, a follow-up processing component is also included, which includes a rotating rod rotatably connected to the bottom surface of the rectangular nozzle, bristles are arranged on the outer ring surfaces of the two rotating rods, gears are fixedly installed on the ends of the two rotating rods away from the central grooved plate, and two racks are fixedly connected to the bottom surface of the interior of the box body, and the two racks are respectively located on the up and down moving paths of the two gears.

[0018] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0019] The water-fertilizer integrated automatic irrigation device, through the cooperation of electric slide rails, sliders and other components, will automatically drive the filter to move horizontally after one half of the filter has been filtered for a period of time, so that the other half of the filter without impurities on the surface is automatically replaced to the use position, thereby ensuring that the filter can have a continuous and effective filtering effect, not only can it reduce the accumulation of impurities on the flow path of the water source, thereby preventing impurities in the water from entering the fertilizer mixing barrel and mixing with the fertilizer, and preventing impurities in the water from clogging the branch pipe or irrigation pipe, resulting in uneven subsequent fertilizer irrigation, but also can reduce the physical damage caused to the root system of crops by large particles of impurities in the water after entering the soil;

[0020] The water sprayed obliquely from the rectangular nozzle is used to flush the surface of the used half of the filter up and down without affecting the normal filtering of impurities by the filter, so as to flush the impurities attached to the surface of the filter, thereby ensuring that the half of the filter has an effective filtering effect in the future and reducing the impact of impurities on fertilizer mixing;

[0021] When flushing impurities on the surface of the filter, the flushing is carried out in a space on one side of the box body and away from the water source, avoiding flushing directly at the water source flow position to affect the normal water supply, and also avoiding that some impurities are broken into pieces and pass through the filter into the fertilizer mixing barrel when flushing impurities, thereby further reducing impurities entering the fertilizer mixing barrel and mixing with fertilizers, ensuring the quality of irrigation after the fertilizer and water are mixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a three-dimensional structural diagram of the overall structure of the present invention from a first viewing angle;

[0023] Figure 2 It is a stereoscopic structural diagram of the overall structure of the present invention from a second viewing angle;

[0024] Figure 3 It is a partial three-dimensional structural diagram of a relevant component of the box body of the present invention;

[0025] Figure 4 It is a partial three-dimensional structural diagram of the relevant components inside the box body of the present invention;

[0026] Figure 5 It is a partial three-dimensional structural diagram of the electric slide rail and the related components of the vertical rod of the present invention;

[0027] Figure 6 It is a partial three-dimensional structural diagram of the central grooved plate and related components at the through groove of the present invention;

[0028] Figure 7 It is a partial three-dimensional structural diagram of the relevant components of the central grooved plate of the present invention;

[0029] Figure 8 It is a partial three-dimensional structural diagram of the related parts of the built-in spring of the present invention;

[0030] Fig. 9 It is a partial three-dimensional structural diagram of the relevant components of the flushing mechanism of the present invention;

[0031] Fig.10 It is a partial three-dimensional structural diagram of the relevant components of the water pumping pipe of the present invention;

[0032] Fig.11 It is a partial three-dimensional structural diagram of the relevant parts of the reciprocating screw rod of the present invention;

[0033] Fig.12This is a structural diagram of the position relationship between the rectangular nozzle and the filter screen of the present invention;

[0034] Fig.13 It is a partial three-dimensional structural diagram of the gear-related components of the present invention.

[0035] The numbers in the figure represent:

[0036] 1. Base plate; 11. Controller; 12. Fertilizer pump; 13. Fertilizer mixing barrel; 131. Water inlet pipe; 132. Liquid discharge pipe; 14. Supply main pipe; 15. Branch pipe;

[0037] Automatic switching mechanism: 21, box body 1; 22, connecting pipe; 23, box body 2; 24, water inlet pipe; 25, electric slide rail; 26, slider; 27, center grooved plate; 271, through groove; 28, rectangular frame; 281, through opening; 29, filter screen; 210, vertical rod; 211, built-in spring; 212, plug shaft; 213, extension plate;

[0038] Cooperating flushing mechanism: 31, small motor; 32, sprocket; 321, chain; 33, reciprocating screw rod; 34, sleeve block; 35, extension rod; 36, limit slot frame; 37, rectangular nozzle; 38, U-shaped hose; 381, horizontal pipe; 39, water pump; 391, water pumping pipe; 310, valve pipe; 311, electric control valve; 312, water storage cylinder; 313, guide plate;

[0039] Follow-up processing component: 41, rotating rod; 42, bristles; 43, gear; 44, rack. DETAILED DESCRIPTION

[0040] The present invention will be further described below in conjunction with the embodiments.

[0041] Embodiment 1: Figures 1 to 8 As shown, the water-fertilizer integrated automatic irrigation device includes a base plate 1, a controller 11 is fixedly mounted on the upper surface of the base plate 1, a fertilizer pump 12 is fixedly mounted on the side of the upper surface of the base plate 1 close to the controller 11, and a fertilizer mixing barrel 13 is also fixedly mounted on the upper surface of the base plate 1, and a feeding pipe for users to add fertilizer is provided on the fertilizer mixing barrel 13. A drainage pipe 132 is connected to the bottom center of the fertilizer mixing barrel 13, and a water inlet pipe 131 is connected to the side of the fertilizer mixing barrel 13 away from the fertilizer pump 12. The water inlet end of the fertilizer pump 12 is connected to the drainage pipe 132, and the water outlet end of the fertilizer pump 12 is connected to a supply main pipe 14, and the supply main pipe 14 is evenly connected to three branch pipes 15. The three branch pipes 15 are used to connect with the irrigation pipe on the field. The above components are all main components of the integrated irrigation device in the prior art, and their detailed structural features are not described in detail.

[0042] An automatic switching mechanism is provided on one side of the upper surface of the substrate 1 close to the water inlet pipe 131, and the automatic switching mechanism includes a box body 21 fixedly connected to the upper surface of the substrate 1, and a connecting pipe 22 is provided in the center of the box body 21 close to the water inlet pipe 131. The connecting pipe 22 is connected to the water inlet pipe 131 and fixedly connected, and a box body 2 23 is detachably connected to the side of the box body 21 away from the connecting pipe 22. The box body 1 21 and the box body 2 23 are connected by screws and nuts and bolts. Specifically, perforated plates are provided on both sides of the box body 1 21 and the box body 2 23, and a screw is inserted between the two perforated plates on the same side, and a nut is threadedly connected to one end of the screw to achieve a fastening connection between the box body 1 21 and the box body 2 23. A water inlet pipe 24 is provided in the center of the box body 23 away from the connecting pipe 22. The end of the water inlet pipe 24 away from the box body 23 can be connected to an external water supply pipe through a flange. The external water supply pipe is connected to an external water supply pump, and water is injected into the fertilizer mixing barrel 13 through the external water supply pump. An electric slide rail 25 is fixedly installed on one side of the top of the box body 1 21. A slider 26 is slidably provided on the electric slide rail 25. The electric slide rail 25 is electrically connected to the controller 11, and the user can control the electric slide rail 25 to start and stop at a fixed time through the controller 11, so as to realize the slider 26 to perform horizontal displacement on the electric slide rail 25 at a fixed time. A central grooved plate 27 is fixedly connected to the center of the box body 1 21. A round tube is fixedly arranged at the center of the central grooved plate 27. The end of the round tube close to the fertilizer mixing barrel 13 is connected and fixedly connected to the connecting pipe 22. The end of the round tube away from the fertilizer mixing barrel 13 is connected to the water inlet pipe 24. Specifically, when the box body 23 is connected to the box body 1 21, the water inlet pipe 24 will be plugged and matched with the end of the round tube away from the fertilizer mixing barrel 13, and a sealing ring is provided on the plugging position to ensure the sealing of the connection between the two. A through groove 271 is provided in the central grooved plate 27. A rectangular frame 28 is movably inserted in the through groove 271. A filter screen 29 is fixedly arranged on the rectangular frame 28. A through opening 281 is provided on one side of the box body 1 21. The through opening 281 allows the rectangular frame 28 to pass horizontally. A vertical rod 210 is fixedly connected to the bottom of the slider 26. The lower end of the vertical rod 210 passes through the box body 1 21 and extends to the inside of the box body 1 21. A built-in groove is provided inside the lower end of the vertical rod 210, and a built-in spring 211 is fixedly connected to the built-in groove inside the lower end of the vertical rod 210. The lower end of the built-in spring 211 is fixedly connected to an insertion shaft 212, and the insertion shaft 212 is slidably set in the built-in groove. The lower end of the insertion shaft 212 is inserted into the top of the rectangular frame 28, and a cross-shaped plug block is provided at the lower end of the insertion shaft 212. A cross-shaped slot is provided at a position of the rectangular frame 28 corresponding to the cross-shaped plug block, and the cross-shaped plug block is inserted in the cross-shaped slot. An extension plate 213 is fixedly provided on the insertion shaft 212, and a vertical groove is provided at a position on the vertical rod 210 corresponding to the extension plate 213. The extension plate 213 passes through the vertical groove and extends to the outside of the vertical rod 210.

[0043] Furthermore, if Figure 5 , Figure 6 , Figure 7 As shown, there is a gap between the side surface of the filter screen 29 close to the box body 23 and the inner wall of the through groove 271. When the rectangular frame 28 and the filter screen 29 are horizontally displaced in the through groove 271, the impurities attached to the side surface of the filter screen 29 close to the box body 23 will not be scraped off by the groove surface of the through groove 271, thereby preventing the impurities from accumulating at the circular tube, thereby reducing the impurities in the range of the water source. It should be noted that four sealing strips are provided on the side surface of the filter screen 29 away from the connecting pipe 22. Initially, two sealing strips are in contact with the groove surface of the through groove 271 on the central grooved plate 27 to prevent the water delivered by the external water source supply pump from flowing out from the gap between the through groove 271 and the filter screen 29 when passing through this place; and as the filter screen 29 is horizontally displaced, the other two sealing strips will also be in contact with the groove surface of the through groove 271 to ensure the sealing of the filter screen 29 after switching positions.

[0044] When in use: first, the user can put the required fertilizer into the fertilizer mixing barrel 13 through the feeding pipe, and then connect the water inlet pipe 24 with the external water supply pipe, and then start the external water supply pump. Under the action of the external water supply pump, water is forced to flow through the water inlet pipe 24, the round pipe on the central grooved plate 27 and the connecting pipe 22, and finally sent into the fertilizer mixing barrel 13 through the water inlet pipe 131, so as to inject water for mixing fertilizer into the fertilizer mixing barrel 13. When the water flows through the central grooved plate 27, the impurities in the water are effectively intercepted by the filtering action of the filter 29, thereby preventing the impurities from entering the fertilizer mixing barrel 13.

[0045] After the filter 29 has been filtering for a period of time, a large amount of impurities will be attached to its surface. In order to ensure a good filtering effect, at this time, the controller 11 starts the electric slide rail 25 to drive the slider 26 to move horizontally to the final position in the direction close to the central grooved plate 27, so that the slider 26 drives the vertical rod 210, the rectangular frame 28, and the filter 29 to move synchronously, so that the half of the filter 29 originally corresponding to the position of the round tube is horizontally displaced to the side of the box body 1 21 away from the electric slide rail 25. At this time, the half of the filter 29 originally located on the side close to the electric slide rail 25 and located inside the box body 1 21 will be located at the position corresponding to the round tube, and the sealing strip on the filter 29 will also fit with the groove surface of the through groove 271 to ensure the sealing of the filter 29 after switching the position. The half of the filter 29 was not used at the beginning, that is, it was not attached with a large amount of impurities, so it has a good impurity filtering effect.

[0046] Therefore, through the cooperation of the electric slide rail 25, the slider 26 and other components, when one half of the filter screen 29 has been filtered for a period of time, it will automatically drive the filter screen 29 to move horizontally, prompting the other half of the filter screen 29 to automatically replace to the use position, thereby ensuring that the filter screen 29 can have a continuous and effective filtering effect. It can not only reduce the accumulation of impurities in the flow path of the water source, thereby preventing impurities in the water from entering the fertilizer mixing barrel 13 and mixing with the fertilizer, and preventing impurities in the water from clogging the branch pipe 15 or the irrigation pipe, resulting in uneven subsequent fertilizer irrigation, but also reduce the physical damage caused to the roots of crops by large particles of impurities in the water after entering the soil.

[0047] Embodiment 2: Figure 1 , Figure 3 as well as Figures 9 to 12As shown, the water-fertilizer integrated automatic irrigation device also includes a cooperating flushing mechanism, which includes a small motor 31 fixedly mounted on the top surface of the box body 21, and the output shaft below the small motor 31 passes through the box body 21 and extends to the interior of the box body 21. The small motor 31 is also electrically connected to the above-mentioned controller 11, and the small motor 31 can also be controlled by the controller 11 to start and shut down at a scheduled time. When the controller 11 starts the above-mentioned electric slide rail 25, when the slider 26 stops moving, the controller 11 starts the small motor 31. Two sprockets 32 are rotatably connected to the bottom surface of the box body 21, and a chain 321 is transmission-connected between the two sprockets 32. The top centers of the two sprockets 32 are fixedly connected to reciprocating screw rods 33. The top ends of the reciprocating screw rods 33 close to the small motor 31 are fixedly connected to the output shaft of the small motor 31. The two reciprocating screw rods 33 are threadedly connected to sleeve blocks 34. The sides of the two sleeve blocks 34 close to each other are fixedly connected to extension rods 35. The ends of the two extension rods 35 close to each other are fixedly connected to rectangular nozzles 37. The two rectangular nozzles 37 are both facing the filter screen 29 and tilted downward. A limiting slot frame 36 is fixedly connected to the position of the bottom surface of the box body 21 corresponding to the two extension rods 35, and the extension rods 35 slide in the adjacent limiting slot frames 36. It is worth noting that the positions of the above-mentioned reciprocating screw rods 33, sleeve blocks 34, and limiting slot frames 36 are not located on the horizontal moving path of the above-mentioned rectangular frame 28 and filter screen 29. The two rectangular nozzles 37 are both connected with a transverse tube 381, and the two transverse tubes 381 are connected with a U-shaped hose 38. A water pump 39 is fixedly installed at the bottom of the outer surface of the box body 21. The water pump 39 is controlled by the controller 11, and when the small motor 31 is started, the water pump 39 starts to pump water at the same time. A valve tube 310 is connected to the water outlet of the water pump 39, and the valve tube 310 is connected to the U-shaped hose 38. Two electric control valves 311 are symmetrically installed on the U-shaped hose 38. The valve tube 310 is located between the two electric control valves 311. Specifically, when one electric control valve 311 is opened, the rectangular nozzle 37 and the transverse tube 381 located near the electric control valve 311 are connected to the water outlet of the water pump 39 through the U-shaped hose 38. On the contrary, when the other electric control valve 311 is opened, the rectangular nozzle 37 and the transverse tube 381 located near the electric control valve 311 are connected to the water outlet of the water pump 39 through the U-shaped hose 38. When the slider 26 is opened, the rectangular nozzle 37 and the horizontal pipe 381 on the other side are connected to the water outlet of the water pump 39 through the U-shaped hose 38, and the two electric control valves 311 are electrically connected to the controller 11. When the slider 26 is horizontally displaced to the final position in the direction close to the central grooved plate 27, the electric control valve 311 close to the small motor 31 is opened. On the contrary, when the slider 26 is reset in the reverse direction, the electric control valve 311 is closed, and the other electric control valve 311 is opened. A water storage cylinder 312 is fixedly installed on one side of the upper surface of the substrate 1 close to the box body 1 21, and there is sufficient clean water in the water storage cylinder 312 at the beginning.A water pumping pipe 391 is provided at the bottom of the water storage cylinder 312 . One end of the water pumping pipe 391 away from the water storage cylinder 312 is fixedly connected to the water inlet end of the water pump 39 . A solenoid valve is installed at the portion where the water inlet end of the water pump 39 is connected to the water pumping pipe 391 .

[0048] Furthermore, if Fig. 9 As shown, a guide groove plate 313 is provided at the bottom of the box body 1 21 and the box body 2 23 at positions corresponding to the positions of the two rectangular nozzles 37 . Specifically, there are two guide groove plates 313 , and the positions of the two guide groove plates 313 correspond to the positions of the two rectangular nozzles 37 , respectively.

[0049] When in use: when the slider 26 moves to the final position in the direction close to the center grooved plate 27, the controller 11 starts the small motor 31 and the water pump 39 at the same time, opens the electromagnetic valve at the connection between the water pump 39 and the water pumping pipe 391, and opens the electric control valve 311 near the side of the small motor 31, and drives one of the reciprocating screws 33 to rotate through the output shaft of the small motor 31, and the reciprocating screw 33 drives the other sprocket 32 ​​to rotate synchronously through the sprocket 32 ​​and the chain 321 at the bottom thereof, thereby driving the other reciprocating screw 33 to rotate synchronously. With the synchronous rotation of the two reciprocating screws 33, under the limiting action of the extension rod 35 and the limiting slot frame 36, the two sleeves 34 are gradually displaced downward. When the sleeves 34 move downward to the final position, under the characteristics of the reciprocating screw 33, the two sleeves 34 are gradually moved upward, so that as the small motor 31 is started, the two sleeves 34 are driven to continuously move up and down through its output shaft. The two sleeves 34 and the two extension rods 35 drive the corresponding rectangular nozzles 37 to move up and down synchronously. Under the action of the water pump 39, the two rectangular nozzles 37 spray clean water from the water storage cylinder 312 from the rectangular nozzles 37 through the water suction pipe 391, the valve pipe 310, the U-shaped hose 38, and the transverse pipe 381. The water sprayed from the rectangular nozzles 37 will be sprayed obliquely toward the surface of the half of the filter screen 29 that has been filtered and used, and as the rectangular nozzles 37 move up and down and back and forth, the impurities on the surface of the half of the filter screen 29 that has been used can be fully washed away. The washed impurities are discharged from the box body 21 and the connecting pipe 22 through the guide groove plate 313 under the action of gravity, so as to avoid water containing impurities remaining in the two.

[0050] Therefore, the water sprayed obliquely from the rectangular nozzle 37 is used to flush the surface of the used half of the filter 29 up and down without affecting the normal filtering of impurities by the filter 29, so as to flush the impurities attached to the surface of the filter 29, thereby ensuring that the half of the filter 29 has an effective filtering effect in the future;

[0051] At the same time, since the impurities on the surface of the filter 29 are flushed in the space inside the box body 21 and away from the side where the water source flows, it is avoided that the normal supply of the water source is affected by flushing directly at the position where the water source flows, and it is also avoided that some impurities are broken into pieces when flushing impurities and pass through the filter 29 into the fertilizer mixing barrel 13, thereby further reducing the impurities entering the fertilizer mixing barrel 13 and mixing with the fertilizer, thereby ensuring the quality of irrigation after the fertilizer and water are mixed.

[0052] Embodiment 3: Fig. 9 , Fig.13 As shown, the integrated water and fertilizer automatic irrigation device also includes a follow-up processing assembly arranged below the two rectangular nozzles 37, and the follow-up processing assembly includes a rotating rod 41 rotatably connected to the bottom surface of the rectangular nozzle 37, and the outer ring surfaces of the two rotating rods 41 are provided with bristles 42, and the bristles 42 are evenly distributed in a ring shape on the outer ring surface of the rotating rod 41, and the bristles 42 are in contact with the outer surface of one side of the filter screen 29. Gears 43 are fixedly installed at one end of the two rotating rods 41 away from the central grooved plate 27, and two racks 44 are fixedly connected to the bottom surface of the box body 1 21, and the two racks 44 are respectively located on the movement paths of the two gears 43 moving up and down.

[0053] When in use: During the process of the two rectangular nozzles 37 moving up and down, the gear 43 will also be driven to move up and down synchronously. During this process, the gear 43 will mesh with the adjacent rack 44, thereby driving the gear 43, the rotating rod 41 and the bristles 42 to continuously rotate forward and backward, thereby prompting the bristles 42 to scrape and brush the stubborn impurities attached to the surface of the filter 29, accelerating the falling of the impurities. Therefore, using the rotatable bristles 42 to scrape and brush the surface of the filter 29 in a rotating manner, combined with the flushing effect of the rectangular nozzle 37, the stubborn impurities attached to the surface of the filter 29 can be further effectively removed, thereby improving the effectiveness of removing impurities on the surface of the filter 29;

[0054] At the same time, the bristles 42 are arranged at the bottom of the rectangular nozzle 37. After the water flow sprayed from the rectangular nozzle 37 contacts the filter 29, part of the water flow will also splash on the surface of the bristles 42, thereby reducing the impurities attached to the bristles 42, thereby ensuring the scraping effect of the bristles 42.

[0055] Finally, when the controller 11 controls the electric slide rail 25 to drive the slider 26 to reset in the reverse direction, the small motor 31 and the water pump 39 are still in the starting state, and the electric control valve 311 close to the small motor 31 is closed, and the electric control valve 311 on the other side is opened. At this time, as the slider 26 is reset in the reverse direction, the half filter 29 away from the small motor 31 will be driven to reset, and the half filter 29 after being fully flushed will automatically move to the path where the water source flows for normal filtering. As the half filter 29 away from the small motor 31 is reset, the steps of flushing with the rectangular nozzle 37 and scraping with the bristles 42 will be repeated to remove impurities on the surface of the half filter 29 again. In this way, the filtering effect of the filter 29 can be always guaranteed in the process of feeding water into the fertilizer mixing barrel 13. When the water source is supplied, the controller 11 controls the electric slide rail 25, the slider 26, the small motor 31, and the water pump 39 to stop working. Then, after the fertilizer and water in the fertilizer mixing barrel 13 are mixed, the fertilizer pump 12 is started through the controller 11, and the fertilizer and water are sent to the branch pipe 15 through the drainage pipe 132 and the supply main pipe 14, and then the fertilizer and water are sent to the plants that need irrigation through the branch pipe 15 and the external irrigation pipe, thereby realizing automatic irrigation operation of fertilizer and water.

[0056] Considering that the filter 29 inside the box body 1 21 needs to be replaced after long-term use, and the related components inside the box body 1 21 also need to be repaired or cleaned. When the user needs to replace the filter 29, the user can separate the screws and nuts between the box body 1 21 and the box body 2 23, and then the box body 2 23 can be separated from the box body 1 21. Then, the user holds the extension plate 213 on one side of the plug shaft 212, lifts the plug shaft 212, compresses the built-in spring 211, and separates the cross-shaped plug block at the lower end of the plug shaft 212 from the cross-shaped slot on the rectangular frame 28. Then, the user holds the rectangular frame 28 to move the filter 29 out horizontally, so that the two pass horizontally through the through slot 271 first, and then through the through opening 281, and finally leave the inside of the box body 1 21. Then, the new rectangular frame 28 and the filter 29 are put back into the box body 1 21 through the through opening 281 and the through slot 271. When the cross-shaped slot on the rectangular frame 28 is aligned with the cross-shaped plug block at the bottom of the plug shaft 212, the plug shaft 212 is released, and the steps of replacing the rectangular frame 28 and the filter 29 are completed. In addition, after the box body 23 is separated from the box body 1 21, the user can also clean or repair the relevant parts inside the box body 1 21.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated water and fertilizer automatic irrigation device, comprising a base plate (1), a controller (11), a fertilizer pump (12) and a fertilizer mixing barrel (13) being fixedly mounted on the upper surface of the base plate (1), a drainage pipe (132) being arranged in communication with the bottom of the fertilizer mixing barrel (13), a water inlet pipe (131) being arranged in communication with the side of the fertilizer mixing barrel (13) away from the fertilizer pump (12), a water inlet end of the fertilizer pump (12) being arranged in communication with the drainage pipe (132), a supply main pipe (14) being arranged in communication with the water outlet end of the fertilizer pump (12), and three branch pipes (15) being arranged in communication with the supply main pipe (14), wherein the supply main pipe (14) is evenly arranged in communication with the three branch pipes (15), characterized in that: An automatic switching mechanism is provided on a side of the upper surface of the base plate (1) close to the water inlet pipe (131); The automatic switching mechanism comprises a box body (21) fixedly connected to the upper surface of a base plate (1); a connecting pipe (22) is provided in the center of the box body (21) close to a water inlet pipe (131); the connecting pipe (22) is connected to and fixedly connected to the water inlet pipe (131); a box body (23) is detachably connected to a side of the box body (21) away from the connecting pipe (22); a water inlet pipe (24) is provided in the center of the box body (23) away from the connecting pipe (22); an electric slide rail (25) is fixedly installed on one side of the top of the box body (21); a slider (26) is slidably provided on the electric slide rail (25); a central grooved plate (27) is fixedly connected to the inside of the box body (21); a round tube is fixedly provided on the central grooved plate (27); and the round tube is close to the One end of the fertilizer mixing barrel (13) is communicated with and fixedly connected to the connecting pipe (22); one end of the round pipe away from the fertilizer mixing barrel (13) is plugged into the water inlet pipe (24); a through groove (271) is provided on the central groove plate (27); a rectangular frame (28) is movably inserted in the through groove (271); a filter screen (29) is fixedly provided on the rectangular frame (28); a vertical rod (210) is fixedly connected to the bottom of the slider (26); a built-in groove is provided at the lower end of the vertical rod (210); a built-in spring (211) is fixedly connected to the built-in groove of the vertical rod (210); an insertion shaft (212) is fixedly connected to the lower end of the built-in spring (211); the insertion shaft (212) is slidably arranged in the built-in groove; the lower end of the insertion shaft (212) is plugged into the top of the rectangular frame (28).

2. The water-fertilizer integrated automatic irrigation device according to claim 1, characterized in that: The box body 1 (21) and the box body 2 (23) are connected and fixed by bolts.

3. The water-fertilizer integrated automatic irrigation device according to claim 2, characterized in that: A gap is left between a surface of one side of the filter screen (29) close to the second box body (23) and the inner wall of the through groove (271), and four sealing strips are provided on a surface of one side of the filter screen (29) close to the second box body (23).

4. The water-fertilizer integrated automatic irrigation device according to claim 1, characterized in that: A through opening (281) is provided on one side of the box body 1 (21), and the through opening (281) allows the rectangular frame (28) to move through.

5. The water-fertilizer integrated automatic irrigation device according to claim 1, characterized in that: A cross-shaped insert block is provided at the lower end of the insert shaft (212), and a cross-shaped slot is provided at a position of the rectangular frame (28) corresponding to the cross-shaped insert block, and the cross-shaped insert block is inserted into the cross-shaped slot.

6. The water-fertilizer integrated automatic irrigation device according to claim 5, characterized in that: An extension plate (213) is fixedly provided on the insertion shaft (212), a vertical slot is provided on the vertical rod (210) at a position corresponding to the extension plate (213), and the extension plate (213) passes through the vertical slot and extends to the outside of the vertical rod (210).

7. The water-fertilizer integrated automatic irrigation device according to claim 1, characterized in that: The invention also includes a cooperating flushing mechanism, which includes a small motor (31) fixedly mounted on the top surface of the box body (21), an output shaft below the small motor (31) passing through the box body (21) and extending into the interior of the box body (21), two sprocket wheels (32) are rotatably connected to the bottom surface of the box body (21), a chain (321) is connected between the two sprocket wheels (32), and a reciprocating screw rod (33) is fixedly connected to the center of the top surface of the two sprocket wheels (32), near the small motor (31). The top end of the reciprocating screw rod (33) on one side of the small motor (31) is fixedly connected to the output shaft of the small motor (31), and the two reciprocating screw rods (33) are both threadedly connected to the sleeve blocks (34). The two sleeve blocks (34) are both fixedly connected to the sides close to each other with extension rods (35), and the two extension rods (35) are both fixedly connected to the ends close to each other with rectangular nozzles (37). The two rectangular nozzles (37) are both oriented toward the filter screen (29) and tilted downward. The bottom surface of the inner part of the box body (21) is fixedly Two limiting slot frames (36) are connected, the positions of the two limiting slot frames (36) correspond to the positions of the two extension rods (35), the extension rods (35) slide in the adjacent limiting slot frames (36), the two rectangular nozzles (37) are both connected with a transverse pipe (381), the two transverse pipes (381) are connected with a U-shaped hose (38), a water pump (39) is fixedly installed at the bottom of the outer surface of the box body (21), and a water outlet end of the water pump (39) is connected with a A valve pipe (310) is provided, the valve pipe (310) is connected to a U-shaped hose (38), two electrically controlled valves (311) are symmetrically mounted on the U-shaped hose (38), the valve pipe (310) is located between the two electrically controlled valves (311), a water storage cylinder (312) is fixedly mounted on the upper surface of the base plate (1), a water pumping pipe (391) is provided at the bottom of the water storage cylinder (312), and one end of the water pumping pipe (391) away from the water storage cylinder (312) is connected to the water inlet end of the water pump (39).

8. The water-fertilizer integrated automatic irrigation device according to claim 7, characterized in that: Two guide groove plates (313) are provided at the bottoms of the box body 1 (21) and the box body 2 (23), and the positions of the two guide groove plates (313) correspond to the positions of the two rectangular nozzles (37).

9. The water-fertilizer integrated automatic irrigation device according to claim 8, characterized in that: The invention also includes a follow-up processing component, which includes a rotating rod (41) rotatably connected to the bottom surface of the rectangular nozzle (37), bristles (42) are arranged on the outer ring surface of the two rotating rods (41), and a gear (43) is fixedly installed on one end of the two rotating rods (41) away from the central grooved plate (27). Two racks (44) are fixedly connected to the bottom surface inside the box body (21), and the two racks (44) are respectively located on the path of the two gears (43) moving up and down.

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