Water and fertilizer all-in-one machine

Abstract

The invention provides a water and fertilizer all-in-one machine, which relates to the field of agricultural planting and comprises a chassis (10), a water storage tank (20), a mixing tank (30), a transfer tank (40) and a spray pipe (50), the mixing box (30) is arranged on the end face of the base plate (10) through an annular supporting seat (301), a stirring assembly is arranged in an inner cavity of the mixing box (30), a filtering self-cleaning assembly is arranged at the bottom of the side face of the side, away from the water storage tank (10), of the mixing box (30) and comprises a filtering cylinder (61), a flow dividing cylinder (62) and a driving assembly, a piston assembly is arranged at the end of the filtering cylinder (61), and an opening and closing assembly is arranged at the end of the flow dividing cylinder (62). The water and fertilizer all-in-one machine not only can filter insoluble solid particles in mixed fertilizer liquid and avoid blockage, but also can perform efficient and repeated filter screen self-cleaning, reduce the irrigation cost and improve the irrigation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent agricultural power machinery, and particularly relates to a water and fertilizer integrated machine. Background Art

[0002] Water and fertilizer integration is a modern agricultural technology that combines irrigation and fertilization. Through a pipeline system, water and nutrients are precisely and evenly sprayed onto the crop growth area to achieve coordinated management of water and fertilizer, so as to supply water and nutrients regularly and quantitatively according to the needs of the crop growth stage and improve resource utilization efficiency. With the progress of planting technology, spraying hydrogen-rich water during watering is also increasingly widely used in the agricultural field. It has the effects of eliminating free radicals, reducing oxidative damage, accelerating the germination and growth of seeds or seedlings, optimizing root development and nutrient absorption, enhancing photosynthesis and organic matter accumulation, optimizing the soil microbial community, and alleviating soil degradation and hardening. Chinese patent document CN219459763U discloses a hydrogen-rich water supply device for water and fertilizer integration. By setting stirring blades and scrapers on the stirring rotating rod, it not only realizes the mixing of hydrogen-rich water and fertilizer by the stirring blades, but also prevents the fertilizer from sticking inside the supply cylinder and ensures the full dissolution of the fertilizer, providing balanced nutrition for agricultural irrigation and planting. At the same time, it is also convenient for cleaning the supply cylinder and realizing the recycling of water. Although the above device can effectively mix hydrogen-rich water and fertilizer and promote the fusion of water and fertilizer; there are many solid particle impurities in the fertilizer that are difficult to dissolve in water. During the irrigation process of the water and fertilizer integrated machine, it is usually in the form of drip irrigation or spraying. The solid particle impurities that are difficult to dissolve in water easily flow to the drip irrigation head or nozzle along with the water and fertilizer mixture, resulting in the blockage of the drip irrigation head or nozzle, which not only reduces the uniformity of irrigation but also easily affects the irrigation efficiency. Therefore, in the prior art, usually after the water and fertilizer are mixed, the fertilizer solution entering the pipeline system is filtered to remove the insoluble solid particle impurities in the fertilizer solution and prevent it from blocking the pipeline; however, long-term filtration will cause a large amount of insoluble solid particle impurities to deposit at the filter screen, and even the problem of the insoluble solid particle impurities blocking the mesh holes will occur, which requires shutdown for cleaning, not only time-consuming and laborious, but also affecting the smoothness and efficiency of irrigation. Summary of the Invention

[0003] Aiming at the above problems existing in the prior art, the purpose of the present invention is to provide a water and fertilizer integrated machine, which can not only filter out the insoluble solid particle impurities in the fertilizer solution after the water and fertilizer are mixed and prevent the pipeline or nozzle from being blocked, but also perform real-time and cyclic self-cleaning of the filter screen without shutdown or manual participation, thereby reducing the irrigation cost and improving the irrigation efficiency.

[0004] The purpose of the present invention is achieved through the following technical solutions: A water and fertilizer integrated machine, comprising a chassis, a water storage tank, a mixing tank, a transfer tank and a spray pipe. The water storage tank, the mixing tank, the transfer tank and the spray pipe are sequentially arranged on the end face of the chassis, and the water storage tank is communicated with the mixing tank through a first conduit; the mixing tank is arranged on the end face of the chassis through an annular support seat, and a stirring assembly is arranged in the inner cavity of the mixing tank. A filter self-cleaning assembly is arranged at the bottom of the side face of the mixing tank away from the water storage tank. The filter self-cleaning assembly comprises a filter cylinder, a shunt cylinder and a driving assembly. One end of the filter cylinder is communicated with the side wall of the mixing tank, and a piston assembly is arranged at the other end; one end of the shunt cylinder is communicated with the bottom of the side of the filter cylinder close to the mixing tank, and an opening and closing assembly is arranged at the other end; the driving assembly is correspondingly arranged on both sides of the filter cylinder corresponding to the piston assembly; the bottom of the shunt cylinder is communicated with the transfer tank through a second conduit; the side of the transfer tank away from the mixing tank is communicated with the spray pipe through a third conduit.

[0005] Based on further optimization of the above solution, a traveling assembly is arranged at the bottom of the chassis. The traveling assembly comprises a front wheel mechanism and a rear wheel mechanism. The front wheel mechanism has two groups, and they are symmetrically distributed about the center line of the chassis on the bottom surface of the chassis. The front wheel mechanism comprises a rotating seat, a telescopic rod and a front wheel. The rotating seat is rotatably connected to the bottom surface of the chassis, and a telescopic rod is arranged on the bottom surface of the rotating seat. The end of the telescopic rod away from the rotating seat is provided with a rotating front wheel; the rear wheel mechanism has two groups, and they are respectively arranged at the rear end of the chassis corresponding to the front wheel mechanism, and comprises a wheel bracket and a rear wheel. The wheel bracket is fixedly arranged on the bottom surface of the chassis, and a rotating rear wheel is arranged at its bottom end.

[0006] Based on further optimization of the above solution, a feeding port for adding fertilizer is arranged on the top surface of the side of the mixing tank away from the water storage tank. The top of the feeding port protrudes from the top surface of the mixing tank, and a sealing cover plate is arranged at the mouth of the feeding port through threaded connection.

[0007] Based on further optimization of the above solution, the diameter of the rear wheel is not less than twice the diameter of the front wheel.

[0008] Based on further optimization of the above solution, the stirring assembly comprises a stirring rotating shaft, an upper gear, an upper connecting gear, an upper tooth ring, a lower gear, a lower connecting gear, a lower tooth ring and a stirring rod. The stirring rotating shaft is coaxially arranged with the mixing tank and is rotatably arranged in the inner cavity of the mixing tank. Upper gears and lower gears are respectively fixedly sleeved on the outer walls of the upper and lower ends of the stirring rotating shaft in the inner cavity of the mixing tank. Upper tooth rings and lower tooth rings are respectively rotatably arranged on the top surface and the bottom surface of the inner cavity of the mixing tank corresponding to the upper gear and the lower gear. The upper tooth ring and the lower tooth ring are coaxially arranged with the stirring rotating shaft, and the upper tooth ring and the upper gear are meshed and driven through the upper connecting gear. The lower tooth ring and the lower gear are meshed and driven through the lower connecting gear. Rotating brackets are arranged on the inner rings of the lower sides of the upper gear and the upper sides of the lower gear of the upper tooth ring. The stirring rotating shaft penetrates through the rotating bracket and is rotatably connected; a plurality of stirring rods are uniformly arranged on the outer wall of the stirring rotating shaft between the upper gear and the lower gear.

[0009] For further optimization based on the above solution, an arc-shaped filter screen is provided at the connection between the filter cylinder and the mixing box, and the arc-shaped filter screen protrudes towards the side close to the stirring rotating shaft.

[0010] For further optimization based on the above solution, the piston assembly includes a piston plate, a piston rod, a positioning pull plate, a first spring and a bearing support. The piston plate is slidably arranged in the inner cavity of the filter cylinder, and a coaxial piston rod is arranged on the side surface of the piston plate away from the mixing box. One end of the piston rod away from the piston plate penetrates through the corresponding side wall of the filter cylinder and is fixedly provided with a positioning pull plate. A first spring is arranged between the positioning pull plate and the outer wall of the filter cylinder and around the outer circle of the piston rod. Bearing supports are fixedly arranged on the front and rear sides of the positioning pull plate respectively, and the bottom end of the positioning pull plate on the side close to the mixing box is provided with an arc-shaped chamfer structure.

[0011] For further optimization based on the above solution, the communication port between the shunt cylinder and the filter cylinder is located on the side of the piston plate away from the piston rod, and the main part of the shunt cylinder is parallel to the filter cylinder; the opening and closing assembly includes an annular convex block, a rubber plug, a sliding rod, a sliding block, a movable block, a second spring and a third spring. The annular convex block is coaxially arranged in the inner cavity of the main part of the shunt cylinder. The rubber plug is coaxially arranged on the side of the annular convex block away from the mixing box, and its longitudinal section is a conical structure with a diameter gradually decreasing from the mixing box to the transfer box. The inner hole of the annular convex block is larger than the small-diameter part of the rubber plug and smaller than the large-diameter part of the rubber plug; a sliding rod is coaxially arranged on the side surface of the rubber plug away from the annular convex block. One end of the sliding rod away from the rubber plug penetrates through the corresponding side wall of the shunt cylinder and is fixedly provided with a sliding block. A spring groove is formed on the end surface of the sliding block, and a movable block is slidably arranged in the spring groove. The movable block is arranged corresponding to the positioning pull plate, and its bottom is connected to the bottom of the spring groove through a second spring. The top end of the movable block on the side away from the shunt cylinder is provided with an inclined surface structure; a third spring is arranged between the sliding block and the shunt cylinder and around the outer circle of the sliding rod.

[0012] For further optimization based on the above solution, cylindrical adjusting rods are respectively arranged on both sides of the top of the movable block. On the top surface of the transfer box close to the mixing box and corresponding to the adjusting rods, 7-shaped brackets are respectively arranged. The end of the 7-shaped bracket away from the transfer box is provided with an adjusting block, and the bottom surface of the adjusting block on the side close to the mixing box is provided with an inclined surface structure matching the top surface of the movable block.

[0013] For further optimization based on the above solution, a sliding seat is slidably arranged on the end surface of the chassis corresponding to the sliding block. The end surface of the sliding seat is fixedly connected to the bottom surface of the sliding block through a plurality of support rods, forming support and positioning for the sliding block; the second conduit is located between the plurality of support rods.

[0014] Based on the further optimization of the above solution, the driving assembly includes a cam disc, a main synchronous shaft, a main driving wheel and a transmission mechanism. The cam discs are respectively arranged on both sides of the filter cylinder corresponding to the bearing supports, and the cam discs are fixedly sleeved on the outer wall of the main synchronous shaft. One end of the main synchronous shaft is rotatably connected to the outer wall of the filter cylinder, and the other end of the outer wall is fixedly sleeved with the main driving wheel, and the main driving wheel is linked with the stirring rotating shaft arranged in the inner cavity of the mixing tank through the transmission mechanism; the transmission mechanism includes an upper bevel gear, a lower bevel gear, a transmission bevel gear, a secondary synchronous shaft, a secondary driving wheel and a transmission chain. The upper bevel gear and the lower bevel gear are fixedly sleeved on the outer wall of the stirring rotating shaft under the stirring rod, and the upper bevel gear and the lower bevel gear are symmetrically arranged. Secondary driving wheels are respectively arranged on both sides of the mixing tank corresponding to the two main driving wheels. Transmission is realized between the main driving wheel and the corresponding secondary driving wheel through a transmission chain. The secondary driving wheel is fixedly sleeved on the outer wall of the secondary synchronous shaft, and one end of the secondary synchronous shaft away from the secondary driving wheel penetrates through the corresponding side wall of the mixing tank. The two secondary synchronous shafts are respectively sleeved with transmission bevel gears corresponding to the upper bevel gear and the lower bevel gear, and the two transmission bevel gears are respectively meshed with the corresponding upper bevel gear and lower bevel gear.

[0015] Based on the further optimization of the above solution, a coaxial gear box is arranged on the outer wall of the stirring rotating shaft. The stirring rotating shaft penetrates through the gear box and is rotatably connected. The upper bevel gear, the lower bevel gear and the transmission bevel gear are located in the inner cavity of the gear box. The two secondary synchronous shafts respectively penetrate through the corresponding side walls of the gear box and are rotatably connected; the outer wall of the gear box is connected to the inner wall of the mixing tank through a connecting bracket.

[0016] Based on the further optimization of the above solution, the spray pipe includes a water guide pipe and drip irrigation heads. The water guide pipe is fixedly arranged on the end face of the chassis through a positioning bracket, and both ends of the water guide pipe protrude from both sides of the chassis. A plurality of drip irrigation heads are evenly arranged at the bottom on both sides of the chassis where the water guide pipe is located.

[0017] The following are the technical effects of the present invention: In the present invention, hydrogen-rich water is poured into the mixing tank through the water storage tank and the first conduit, solid fertilizer is added through the feeding port, and the stirring assembly arranged in the inner cavity of the mixing tank is used to realize the uniform stirring and mixing of the hydrogen-rich water and the solid fertilizer, so as to achieve the uniform ratio of the fertilizer and the hydrogen-rich water; after the mixing is uniform, the filter cylinder is used to filter the solid particles that are insoluble in water in the water-fertilizer mixture, effectively avoiding the problem that the solid particles flow into the spray pipe along with the water-fertilizer mixture, resulting in blockage of the water guide pipe or drip irrigation heads, and ensuring the efficiency and uniformity of the irrigated water-fertilizer solution. In addition, during the continuous stirring and filtering process, through the cooperation between the shunt cylinder, the piston assembly, the opening and closing assembly and the driving assembly, linkage with the stirring assembly is realized. Furthermore, during the continuous stirring process, backwashing of the filter screen (i.e., the arc-shaped filter screen) is completed, effectively avoiding problems such as solid particle accumulation and blockage of the filter screen, and the cumbersome operation and low irrigation efficiency caused by the need to stop the machine to clean the filter screen. Through the setting of the spray pipe, irrigation operations with different densities are realized, the efficiency of the operation is ensured, the adaptability is stronger, and the application range is wider. Description of the Drawings

[0018] Figure 1 This is a schematic diagram of the overall structure of the water and fertilizer integrated machine in the embodiment of the present invention.

[0019] Figure 2 is Figure 1 a partially enlarged view of A in

[0020] Figure 3 is Figure 1 a sectional view taken along the B-B direction of

[0021] Figure 4 is Figure 3 a partially enlarged view of D in

[0022] Figure 5 is Figure 3 a sectional view taken along the E-E direction of

[0023] Figure 6 is Figure 3 a view taken in the direction of F of

[0024] Figure 7 is Figure 3 a view taken in the direction of G of

[0025] Figure 8 is Figure 1 a sectional view taken along the C-C direction of

[0026] Figure 9 is Figure 8 a partially enlarged view of H in

[0027] Figure 10 This is a schematic diagram of the spray pipe of the water and fertilizer integrated machine in the embodiment of the present invention.

[0028] Figure 11 This is a diagram showing the usage state of the water and fertilizer integrated machine in the embodiment of the present invention (relative to Figure 2 ).

[0029] Among them, 10 is the chassis; 111 is the rotating seat; 112 is the telescopic rod; 113 is the front wheel; 121 is the wheel bracket; 122 is the rear wheel; 20 is the water storage tank; 21 is the first conduit; 30 is the mixing tank; 301 is the support seat; 302 is the feeding port; 303 is the connecting bracket; 304 is the gearbox; 31 is the stirring rotating shaft; 32 is the upper gear; 33 is the upper connecting gear; 34 is the upper tooth ring; 340 is the rotating bracket; 35 is the lower gear; 36 is the lower connecting gear; 37 is the lower tooth ring; 38 is the stirring rod; 40 is the transfer tank; 41 is the third conduit; 42 is the L-shaped bracket; 43 is the adjusting block; 50 is the spray pipe; 51 is the water guide pipe; 52 is the drip irrigation head; 61 is the filter cartridge; 610 is the arc-shaped filter screen; 611 is the piston plate; 612 is the piston rod; 613 is the positioning pull plate; 614 is the first spring; 615 is the bearing support; 62 is the shunt cylinder; 620 is the second conduit; 621 is the annular convex block; 622 is the rubber plug; 623 is the sliding rod; 624 is the sliding block; 6241 is the support rod; 6242 is the sliding seat; 625 is the movable block; 6250 is the adjusting rod; 626 is the second spring; 627 is the third spring; 631 is the cam disc; 632 is the main synchronous shaft; 633 is the main transmission wheel; 6341 is the upper bevel gear; 6342 is the lower bevel gear; 6343 is the transmission bevel gear; 6344 is the auxiliary synchronous shaft; 6345 is the auxiliary transmission wheel; 6346 is the transmission chain. Detailed implementation mode

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0031] Embodiment 1: A water and fertilizer integrated machine, as shown in Figure 1 shown, includes a chassis 10, a water storage tank 20, a mixing tank 30, a transfer tank 40 and a spray pipe 50. A traveling assembly is provided at the bottom of the chassis 10. The traveling assembly includes a front wheel mechanism and a rear wheel mechanism. The front wheel mechanism is in two groups and they are symmetrically distributed about the center line of the chassis 10 on the bottom surface of the chassis 10 (as Figure 1 shown, the two groups of front wheel mechanisms are arranged on the right side of the bottom of the chassis 10). The front wheel mechanism includes a rotating seat 111, a telescopic rod 112 and a front wheel 113. The rotating seat 111 is rotatably connected to the bottom surface of the chassis 10 and the telescopic rod 112 is provided on the bottom surface of the rotating seat 111 (the telescopic rod adopts a conventional structure in the art, such as a hydraulic telescopic rod). The end of the telescopic rod 112 away from the rotating seat 111 is provided with a rotatable front wheel 113 (as Figure 1 shown); the rear wheel mechanism is in two groups and they are respectively arranged corresponding to the front wheel mechanism at the rear end of the chassis 10 (as Figure 1As shown, two sets of rear wheel mechanisms are arranged on the left side of the bottom of the chassis 10, including wheel brackets 121 and rear wheels 122. The wheel brackets 121 are fixedly arranged on the bottom surface of the chassis 10, and the rear wheels 122 are rotatably arranged at their bottom ends (in this embodiment, the rear wheel mechanism is a driving wheel, that is, a motor for driving the rear wheel 122 to rotate is arranged on the wheel bracket 121, and then the whole fertilizer and water integration machine moves forward and the rear wheels are realized by driving the rear wheel 122 to rotate; the front wheel mechanism is an adjusting wheel, that is, the steering adjustment and chassis 10 balance adjustment of the whole fertilizer and water integration machine are realized through the front wheel mechanism; since some of the irrigated soil surfaces are uneven, the front wheel mechanism is lifted to adapt to the uneven parts of the soil surface, ensuring that the plane of the whole chassis 10 is horizontal, and then avoiding problems such as the angle between the spraying device and the soil surface and poor irrigation effect caused by uneven irrigation). The diameter of the rear wheel 122 is not less than twice the diameter of the front wheel 113 (such as Figure 1 shown).

[0032] On the end face of the chassis 10 (from left to right), a water storage tank 20, a mixing tank 30, a transfer tank 40 and a spray pipe 50 are arranged in sequence. The water storage tank 20 and the mixing tank 30 are connected through a first conduit 21. Hydrogen-rich water is stored in advance in the water storage tank 20, and a water pump is arranged on the first conduit 21 for water extraction (the water pump can be directly arranged on the top surface of the mixing tank 30, such as Figure 1 shown); a feeding port 302 is arranged on the top surface of the side of the mixing tank 30 away from the water storage tank 20 for adding fertilizer (such as Figure 1 shown), the top of the feeding port 302 protrudes from the top surface of the mixing tank 30, and a sealing cover plate is arranged at the mouth of the feeding port 302 through threaded connection. The mixing tank 30 is arranged on the end face of the chassis 10 through an annular support seat 301, and a stirring assembly is arranged in the inner cavity of the mixing tank 30. The stirring assembly includes a stirring rotating shaft 31, an upper gear 32, an upper connecting gear 33, an upper tooth ring 34, a lower gear 35, a lower connecting gear 36, a lower tooth ring 37 and a stirring rod 38. The stirring rotating shaft 31 is coaxially arranged with the mixing tank 30 and is rotatably arranged in the inner cavity of the mixing tank 30 (combining Figure 1 and Figure 3 shown, the top end of the stirring rotating shaft 31 penetrates through the top surface of the mixing tank 30 and is connected to the output shaft of the motor arranged on the top surface of the mixing tank 30, so as to drive the rotation of the stirring rotating shaft 31), and the upper and lower outer walls of the stirring rotating shaft 31 located in the inner cavity of the mixing tank 30 are respectively fixedly sleeved with the upper gear 32 and the lower gear 35 (combining Figure 1 and Figure 3As shown in the figure, on the top and bottom surfaces of the inner cavity of the mixing tank 30, an upper tooth ring 34 and a lower tooth ring 37 are rotatably arranged corresponding to the upper gear 32 and the lower gear 35 respectively (for example: on the top surface of the upper tooth ring 34, 3 to 6 lifting brackets are evenly arranged around its central axis. On the top surface of the inner cavity of the mixing tank 30, a first annular chute is opened corresponding to the lifting brackets. One end of the lifting bracket away from the upper tooth ring 34, that is, the top end, is slidably clamped in the first annular chute, so as to realize the installation of the upper tooth ring 34; on the bottom surface of the lower tooth ring 37 and around its central axis, 3 to 6 support blocks are evenly arranged. On the bottom surface of the inner cavity of the mixing tank 30, a second annular chute is opened corresponding to the support blocks. One end of the support block away from the lower tooth ring 37, that is, the bottom end, is slidably clamped in the second annular chute, so as to realize the installation of the lower tooth ring 37). The upper tooth ring 34 and the lower tooth ring 37 are coaxially arranged with the stirring shaft 31, and the upper tooth ring 34 and the upper gear 32 are meshed and driven through the upper connecting gear 33 (combined with Figure 3 With Figure 5 As shown in the figure, in this embodiment, two upper connecting gears 33 are provided. The two upper connecting gears 33 are symmetrically arranged with respect to the stirring shaft 31, and the two upper connecting gears 33 are arranged at different positions from the first conduit 21 and the feeding port 302; the two upper connecting gears 33 are respectively rotatably sleeved on the outer wall of the first gear rod, and the top end of the first gear rod is fixedly connected to the top surface of the inner cavity of the mixing tank 30). The lower tooth ring 37 and the lower gear 35 are meshed and driven through the lower connecting gear 36 (the driving mode of the lower tooth ring 37 and the lower gear 35 is the same as that of the upper gear 32, the upper connecting gear 33 and the upper tooth ring 34. In this embodiment, two lower connecting gears 36 are also provided. The two lower connecting gears 36 are symmetrically arranged with respect to the stirring shaft 31; the two lower connecting gears 36 are respectively rotatably sleeved on the outer wall of the second gear rod, and the bottom end of the second gear rod is fixedly connected to the bottom surface of the inner cavity of the mixing tank 30). A rotating bracket 340 is arranged in the inner ring below the upper gear 32 of the upper tooth ring 34 and in the inner ring above the lower gear 35 of the lower tooth ring 37. The stirring shaft 31 passes through the rotating bracket 340 and is rotatably connected. The rotating bracket 340 adopts any one of Y-shaped, X-shaped or *-shaped (such as Figure 5 As shown in the figure, in this embodiment, the rotating bracket 340 adopts an X-shaped). On the outer wall of the stirring shaft 31 between the upper gear 32 and the lower gear 35, a plurality of stirring rods 38 are evenly arranged (the number of the stirring rods 38 is set according to the actual situation).

[0033] A filter self-cleaning assembly is arranged at the bottom of the side surface of the mixing tank 30 away from the water storage tank 20. The filter self-cleaning assembly includes a filter cylinder 61, a shunt cylinder 62 and a driving assembly. One end of the filter cylinder 61 is communicated with the side wall of the mixing tank 30, and the other end is provided with a piston assembly. An arc-shaped filter screen 610 is arranged at the connection between the filter cylinder 61 and the mixing tank 30, and the arc-shaped filter screen 610 protrudes toward the side close to the stirring shaft 31 (such as Figure 2 As shown in the figure). See Figure 2As shown, the piston assembly includes a piston plate 611, a piston rod 612, a positioning pull plate 613, a first spring 614, and a bearing support 615. The piston plate 611 is slidably disposed in the inner cavity of the filter cartridge 61 (the piston plate 611 is coaxially arranged with the filter cartridge 61), and a coaxial piston rod 612 is provided on the side surface of the piston plate 611 away from the mixing tank 30. One end of the piston rod 612 away from the piston plate 611 penetrates through the corresponding side wall of the filter cartridge 61 and is fixedly provided with a positioning pull plate 613. A first spring 614 is disposed between the positioning pull plate 613 and the outer wall of the filter cartridge 61 and is located outside the piston rod 612. Bearing supports 615 are fixedly provided on the front and rear sides (i.e., Figure 1 the front and rear sides shown in Figure 8 , Figure 9 the left and right sides shown in Figure 2 ) of the positioning pull plate 613. The bottom end of the positioning pull plate 613 on the side close to the mixing tank 30 is provided with an arc chamfer structure (as shown in Figure 2 ). One end of the shunt tube 62 communicates with the bottom of the side of the filter cartridge 61 close to the mixing tank 30 (as shown in Figure 2 ), and the other end is provided with an opening and closing assembly. The communication port between the shunt tube 62 and the filter cartridge 61 is located on the side of the piston plate 611 away from the piston rod 612, and the main body part of the shunt tube 62 is parallel to the filter cartridge 61 (as shown in Figure 2 , the shunt tube 62 is composed of a bent tube structure and a straight tube structure. The bent tube structure is used to communicate with the filter cartridge 61, and the straight tube mechanism is the main body part of the shunt tube 62); the bottom of the shunt tube 62 is communicated with the transfer tank 40 through a second conduit 620. The opening and closing assembly includes an annular convex block 621, a rubber plug 622, a sliding rod 623, a sliding block 624, a movable block 625, a second spring 626, and a third spring 627. The annular convex block 621 is coaxially disposed in the inner cavity of the main body part of the shunt tube 30. The rubber plug 622 is coaxially disposed on the side of the annular convex block 621 away from the mixing tank 30, and its longitudinal section is a conical structure with a gradually decreasing diameter from the mixing tank 30 to the transfer tank 40 (as shown in Figure 2 ). The inner hole of the annular convex block 621 is larger than the small diameter part of the rubber plug 622 and smaller than the large diameter part of the rubber plug 622; a sliding rod 623 is coaxially provided on the side surface of the rubber plug 622 away from the annular convex block 621. One end of the sliding rod 623 away from the rubber plug 622 penetrates through the corresponding side wall of the shunt tube 62 and is fixedly provided with a sliding block 624. A spring groove is provided on the end surface of the sliding block 624, and a movable block 625 is slidably disposed in the spring groove. The movable block 625 is arranged corresponding to the positioning pull plate 613, and its bottom is connected to the bottom of the spring groove through a second spring 626. The top end of the side of the movable block 625 away from the shunt tube 62 (i.e., Figure 2 the right top end shown in Figure 2 ) is provided with an inclined surface structure; a third spring 627 is disposed between the sliding block 624 and the shunt tube 62 and is located outside the sliding rod 623. Cylindrical adjusting rods 6250 are respectively provided on both sides of the top of the movable block 625 (combining Figure 8 withFigure 9 As shown in the figure, on the top surface of one side of the transfer box 40 close to the mixing box 30 and corresponding to the adjusting rods 6250, 7-shaped brackets 42 are respectively arranged. At one end of the 7-shaped bracket 42 far from the transfer box 40, an adjusting block 43 is arranged (as Figure 2 shown). On the bottom surface of one side of the adjusting block 43 close to the mixing box 30, an inclined surface structure matching the top surface of the movable block 625 is arranged (as Figure 2 shown); meanwhile, in order to avoid interference during the movement process, as Figure 9 shown, the shortest distance between the two adjusting blocks 43 is greater than the width of the positioning pull plate 613. On the end face of the chassis 10 and corresponding to the sliding block 624, a sliding seat 6242 is slidably arranged. The end face of the sliding seat 6242 is fixedly connected to the bottom surface of the sliding block 624 through a plurality of support rods 6241, forming the support and positioning of the sliding block 624; the second conduit 620 is located between the plurality of support rods 6241 (combined Figure 2 with Figure 9 shown).

[0034] The driving components are arranged on both sides of the filter cartridge corresponding to the piston components. The driving components include a cam disc 631, a main synchronous shaft 632, a main transmission wheel 633 and a transmission mechanism. The cam discs 631 are respectively arranged on both sides of the filter cartridge 61 corresponding to the bearing supports 615, and the cam disc 631 is fixedly sleeved on the outer wall of the main synchronous shaft 632 (as Figure 8 shown, the shortest distance between the two cam discs 631 is greater than the maximum width between the two adjusting rods 6250; meanwhile, as Figure 6 、 Figure 7 shown, the protruding parts of the cam disc 631 in this embodiment are symmetrical left and right), one end of the main synchronous shaft 632 is rotatably connected to the outer wall of the filter cartridge 61, and the other end of its outer wall is fixedly sleeved with the main transmission wheel 633, and the main transmission wheel 633 is linked with the stirring rotating shaft 31 arranged in the inner cavity of the mixing box 30 through a transmission mechanism (the end of the main synchronous shaft 632 far from the filter cartridge 61 is rotatably connected to the rotating seat arranged on the end face of the chassis 10 to realize the stable positioning of the main synchronous shaft 632); the transmission mechanism includes an upper bevel gear 6341, a lower bevel gear 6342, a transmission bevel gear 6343, a secondary synchronous shaft 6344, a secondary transmission wheel 6345 and a transmission chain 6346. The upper bevel gear 6341 and the lower bevel gear 6342 are fixedly sleeved on the outer wall of the stirring rotating shaft 61 under the stirring rod 68, and the upper bevel gear 6341 and the lower bevel gear 6342 are symmetrically arranged (combined Figure 3 with Figure 4 shown). Secondary transmission wheels 6345 are respectively arranged on both sides of the mixing box 30 corresponding to the two main transmission wheels 633. The main transmission wheel 633 and the corresponding secondary transmission wheel 6345 are driven through the transmission chain 6346 (combined Figure 3 、 Figure 6 、 Figure 7As shown in the figure, the secondary drive wheel 6345 is fixedly sleeved on the outer wall of the secondary synchronizing shaft 6344, and one end of the secondary synchronizing shaft 6344 away from the secondary drive wheel 6345 penetrates through the side wall of the corresponding mixing tank 30. The two secondary synchronizing shafts 6344 are respectively sleeved with driving bevel gears 6343 corresponding to the upper bevel gear 6341 and the lower bevel gear 6342, and the two driving bevel gears 6343 are respectively meshed with the corresponding upper bevel gear 6341 and lower bevel gear 6342 (as Figure 4 shown). A coaxial gear box 304 is arranged on the outer wall of the stirring rotating shaft 31. The stirring rotating shaft 31 penetrates through the gear box 304 and is rotationally connected. The upper bevel gear 6341, the lower bevel gear 6342 and the driving bevel gear 6343 are located in the inner cavity of the gear box 304 (as Figure 4 shown). The two secondary synchronizing shafts 6344 respectively penetrate through the side walls of the corresponding gear boxes 304 and are rotationally connected; the outer wall of the gear box 304 is connected to the inner wall of the mixing tank 30 through a connecting bracket 303 (combined with Figure 3 and Figure 4 shown).

[0035] One side of the transfer tank 40 away from the mixing tank 30 is communicated with the spray pipe 50 through a third conduit 41. A water pump is arranged on the third conduit 41 for pumping water. The spray pipe 50 includes a water guide pipe 51 and drip irrigation heads 52 (as Figure 10 shown). The water guide pipe 51 is fixedly arranged on the end face of the chassis 10 through a positioning bracket, and both ends of the water guide pipe 51 protrude from both sides of the chassis 10. A plurality of drip irrigation heads 52 are evenly arranged at the bottom of both sides of the chassis 10 where the water guide pipe 51 is located (as Figure 10 shown. In this embodiment, two drip irrigation heads 52 are respectively arranged at the bottom of the water guide pipes 51 on both sides of the chassis 10).

[0036] Embodiment 2: As another preferred embodiment of the solution of the present invention, on the basis of the water and fertilizer integrated machine described in Embodiment 1, in order to prevent liquid leakage during the sliding of the filter cartridge 61 and the shunt cylinder 62 on the piston rod 612 and the sliding rod 623, see Figure 2 shown. Bellows are arranged between the piston plate 611 and the inner cavity side wall of the filter cartridge 61 and on the outer circle of the piston rod 612, and between the rubber plug 622 and the inner cavity side wall of the shunt cylinder 62 and on the outer circle of the sliding rod 623. The bellows are coaxially arranged with the corresponding piston rod 612 and sliding rod 623 respectively (both ends of the bellows are fixedly connected to the corresponding piston plate 611 end face, the inner cavity side wall of the filter cartridge 61, the rubber plug 622 end face, and the inner cavity side wall of the shunt cylinder 62), so as to prevent liquid from leaking at the connection between the piston rod 612 and the filter cartridge 61 and at the connection between the sliding rod 623 and the shunt cylinder 62.

[0037] Embodiment 3: As another preferred embodiment of the solution of the present invention, on the basis of the water and fertilizer integrated machine described in Embodiment 1, in order to ensure the stable sliding of the positioning pull plate 613, horizontal chutes are respectively opened on the outer walls of the upper and lower sides of the filter cylinder 61, and the horizontal chutes are parallel to the central axis of the filter cylinder 61. A limiting slider is slidably arranged in the horizontal chute, and one side surface of the limiting slider close to the positioning pull plate 613 is fixedly connected to the positioning link through a horizontal link.

[0038] Embodiment 4: As another preferred embodiment of the solution of the present invention, on the basis of the water and fertilizer integrated machine described in Embodiment 1, in order to avoid the problem that the solubility of hydrogen decreases due to temperature rise during the stirring process, a heat preservation shell is wrapped around the outer wall of the mixing tank 30, and a circulating water cooling mechanism (for example: a component composed of a water cooling pipe wound evenly and a cooling device) is arranged between the inner cavity of the heat preservation shell and the outer wall of the mixing tank 30, so as to realize low-temperature stirring and reduce the risk of hydrogen escaping due to the increase of temperature with the decrease of hydrogen solubility.

[0039] Embodiment 5: As another preferred embodiment of the solution of the present invention, on the basis of the water and fertilizer integrated machine described in Embodiment 1, in order to prevent fertilizer particles from adhering to the inner wall of the side of the mixing tank 30 during the stirring process, a cleaning scraper is arranged at one end of the stirring rod 38 in the same column away from the stirring rotating shaft 31, so as to clean the side wall of the mixing tank 30 in real time during the stirring process.

[0040] Embodiment 6: A water and fertilizer integrated irrigation method containing hydrogen-rich water, using any one of the water and fertilizer integrated machines in Embodiments 1 to 5, includes: Step 1: First, pump the hydrogen-rich water in the storage tank 20 into the inner cavity of the mixing tank 30 through the water pump on the first conduit 21; when the hydrogen-rich water in the mixing tank 30 reaches the specified liquid level (the real-time monitoring of the liquid level height of the hydrogen-rich water can be realized by setting a liquid level sensor in the mixing tank 30), add the mixed fertilizer from the feeding port 302. After adding a certain amount of mixed fertilizer, seal the feeding port 302 with a sealing cover plate to avoid the overflow of hydrogen during the stirring process.

[0041] Step 2: Start the rotation of the stirring rotating shaft 31. The stirring rotating shaft 31 synchronously drives the upper gear 32, the lower gear 35, the stirring rod 38, the upper bevel gear 6341 and the lower bevel gear 6342 to rotate. The upper gear 32 drives the upper tooth ring 34 to rotate through the upper connecting gear 33, and the lower gear 35 drives the lower tooth ring 37 to rotate through the lower connecting gear 36. Furthermore, the rotation of the rotating bracket 340 of the upper tooth ring 34 and the lower tooth ring 37 is realized. By using the rotation of the rotating bracket 340 in the opposite direction to the rotation direction of the stirring rod 38, a compound rotation matching with the stirring rod 38 is formed to improve the mixing uniformity between the solid fertilizer and the hydrogen-rich water; The mixed fertilizer solution enters the filter cylinder 61 and the flow dividing cylinder 62 through the arc-shaped filter screen 610, and is blocked by the piston plate 611 in the filter cylinder 61 to the left side of the filter cylinder 61 as shown in Figure 2 shown, and is blocked by the rubber plug 622 to the left side of the flow dividing cylinder 62 (at this time, the rubber plug 622 cooperates with the annular convex block 621 to form a seal for the flow dividing cylinder 62); With the continuous rotation of the stirring rotating shaft 31, the upper bevel gear 6341 and the lower bevel gear 6342 drive the auxiliary transmission wheel 6345 to rotate respectively through the corresponding transmission bevel gears 6343 and the auxiliary synchronous shaft 6344. Then, the cam disc 631 is driven to rotate by the transmission chain 6346, the main transmission wheel 633 and the main synchronous shaft 632. The protruding part of the cam disc 631 gradually presses against the corresponding bearing support 615, and pulls the positioning pull plate 613 to slide horizontally along the end away from the mixing tank 30 (in this process, the first spring 614 is stretched); at this time, the positioning pull plate 613 presses against the movable block 625, and drives the sliding block 624 to move along with the positioning pull plate 613 through the movable block 625 (in this process, the third spring 627 is stretched). The sliding block 624 pulls the rubber plug 622 to move to the side away from the annular convex block 621 through the sliding rod 623, thereby opening the through hole in the middle of the annular convex block 621, so that the fertilizer solution in the flow dividing cylinder 62 enters the inside of the transfer tank 40 through the second conduit 620.

[0042] With the continuous rotation of the cam disc 631, the positioning pull plate 613 and the sliding block 624 continuously move to the right as shown in Figure 2 shown. When the adjusting rods 6250 on both sides of the movable block 625 contact the inclined surface structures of the corresponding adjusting blocks 43, due to the guidance of the inclined surface structures of the adjusting blocks 43, the adjusting rods 6250 and the movable block move downward synchronously during the rightward movement (in this process, the second spring 626 is compressed), so that the top end of the movable block 625 moves downward to the lower side of the bottom end of the positioning pull plate 613 (as shown in Figure 11 shown); at this time, due to the elastic force of the third spring 627, the sliding block 624 quickly moves to the left as shown in Figure 11 shown, and then drives the rubber plug 622 to quickly move to the left through the sliding rod 623, realizing the re-sealing of the rubber plug 622 to the annular convex block 621. During this process, the protruding end of the cam disc 631 just contacts the side surface of the corresponding bearing support 615. With the continuous rotation of the cam disc 631, the protruding part of the cam disc 631 no longer presses against the bearing support 615. Due to the elastic force of the first spring 614, the positioning pull plate 613 is pulled as shown in Figure 11Shift to the left as shown, and then use the piston rod 612 and the piston plate 611 to push the fertilizer solution in the filter cartridge 61 towards the inner cavity of the mixing tank 30 (at this time, the shunt cylinder 62 is closed), so as to wash the arc-shaped filter screen 610 and prevent solid particles from blocking its mesh holes. As the positioning pull plate 613 continues to move to the left, the arc chamfer structure at the bottom of the positioning pull plate 613 abuts against the inclined surface structure of the movable block 625, causing it to move down again, and then the positioning pull plate 613 is repositioned to the left of the movable block 625.

[0043] Repeat the above cycle to achieve the stirring and filtering of the fertilizer solution and the repeated washing of the arc-shaped filter screen 610.

[0044] Step 3: Control the movement of the entire water and fertilizer integrated machine by driving the rear wheel mechanism, and adjust the moving direction and the levelness of the chassis 10 in real time through the front wheel mechanism (the level state of the chassis can be monitored in real time by evenly arranging level sensors on the end face of the chassis 10, so as to achieve adjustment by using the front wheel mechanism), so that the entire water and fertilizer integrated machine moves in the area to be irrigated; then, pump the fertilizer solution in the transfer tank 40 into the water guide pipe 51 through the water pump of the third conduit 41, and achieve drip irrigation through the drip irrigation head 52.

Claims

1. A water and fertilizer integrated machine, characterized in that: It includes a chassis, a water storage tank, a mixing tank, a transfer tank and a spray pipe. The water storage tank, the mixing tank, the transfer tank and the spray pipe are sequentially arranged on the end face of the chassis, and the water storage tank is communicated with the mixing tank through a first conduit; the mixing tank is arranged on the end face of the chassis through an annular support seat, and a stirring assembly is arranged in the inner cavity of the mixing tank. A filtering and self-cleaning assembly is arranged at the bottom of the side of the mixing tank away from the water storage tank. The filtering and self-cleaning assembly includes a filtering cylinder, a shunt cylinder and a driving assembly. One end of the filtering cylinder is communicated with the side wall of the mixing tank, and a piston assembly is arranged at the other end. One end of the shunt cylinder is communicated with the bottom of the side of the filtering cylinder close to the mixing tank, and an opening and closing assembly is arranged at the other end. The driving assembly is arranged on both sides of the filtering cylinder corresponding to the piston assembly. The bottom of the shunt cylinder is communicated with the transfer tank through a second conduit; the side of the transfer tank away from the mixing tank is communicated with the spray pipe through a third conduit.

2. The water and fertilizer integrated machine according to claim 1, characterized in that: A traveling assembly is arranged at the bottom of the chassis. The traveling assembly includes a front wheel mechanism and a rear wheel mechanism. The front wheel mechanism has two groups and they are symmetrically distributed about the center line of the chassis on the bottom surface of the chassis. The front wheel mechanism includes a rotating seat, a telescopic rod and a front wheel. The rotating seat is rotatably connected to the bottom surface of the chassis, and a telescopic rod is arranged on the bottom surface of the rotating seat. A rotating front wheel is arranged at the end of the telescopic rod away from the rotating seat; the rear wheel mechanism has two groups and they are respectively arranged at the rear end of the chassis corresponding to the front wheel mechanism, and includes a wheel support and a rear wheel. The wheel support is fixedly arranged on the bottom surface of the chassis, and a rotating rear wheel is arranged at its bottom end.

3. The water and fertilizer integrated machine according to claim 1 or 2, characterized in that: The diameter of the rear wheel is not less than twice the diameter of the front wheel.

4. The fertilizer and water integrated machine according to claim 1 or 3, characterized in that: The stirring assembly includes a stirring rotating shaft, an upper gear, an upper connecting gear, an upper tooth ring, a lower gear, a lower connecting gear, a lower tooth ring and a stirring rod. The stirring rotating shaft is coaxially arranged with the mixing tank and is rotatably arranged in the inner cavity of the mixing tank. Upper gears and lower gears are respectively fixedly sleeved on the outer walls of the upper and lower ends of the stirring rotating shaft in the inner cavity of the mixing tank. Upper tooth rings and lower tooth rings are respectively rotatably arranged on the top surface and the bottom surface of the inner cavity of the mixing tank corresponding to the upper gear and the lower gear. The upper tooth ring and the lower tooth ring are coaxially arranged with the stirring rotating shaft, and the upper tooth ring and the upper gear are meshed and driven through the upper connecting gear. The lower tooth ring and the lower gear are meshed and driven through the lower connecting gear. Rotating brackets are arranged on the inner ring of the lower side of the upper tooth ring and the inner ring of the upper side of the lower gear. The stirring rotating shaft penetrates through the rotating bracket and is rotatably connected; a plurality of stirring rods are uniformly arranged on the outer wall of the stirring rotating shaft between the upper gear and the lower gear.

5. The water and fertilizer integrated machine according to claim 1, characterized in that: An arc-shaped filter screen is arranged at the connection between the filtering cylinder and the mixing tank, and the arc-shaped filter screen protrudes towards the side close to the stirring rotating shaft.

6. The water and fertilizer integrated machine according to claim 1, characterized in that: The piston assembly includes a piston plate, a piston rod, a positioning pull plate, a first spring and a bearing support. The piston plate is slidably arranged in the inner cavity of the filtering cylinder, and a coaxial piston rod is arranged on the side surface of the piston plate away from the mixing tank. After one end of the piston rod away from the piston plate penetrates through the corresponding side wall of the filtering cylinder, a positioning pull plate is fixedly arranged. A first spring is arranged between the positioning pull plate and the outer wall of the filtering cylinder and on the outer ring of the piston rod. Bearing supports are respectively fixedly arranged on the front and rear sides of the positioning pull plate. The bottom end of the positioning pull plate close to the mixing tank is provided with an arc-shaped chamfer structure.

7. The water and fertilizer integrated machine according to claim 6, characterized in that: The communication port between the flow dividing cylinder and the filter cylinder is located on the side of the piston plate away from the piston rod, and the main body part of the flow dividing cylinder is parallel to the filter cylinder; the opening and closing assembly includes an annular convex block, a rubber plug, a sliding rod, a sliding block, a movable block, a second spring and a third spring. The annular convex block is coaxially arranged in the inner cavity of the main body part of the flow dividing cylinder. The rubber plug is coaxially arranged on the side of the annular convex block away from the mixing tank, and its longitudinal section is a conical structure with a gradually decreasing diameter from the mixing tank to the transfer tank. The inner hole of the annular convex block is larger than the small-diameter part of the rubber plug and smaller than the large-diameter part of the rubber plug; a sliding rod is coaxially arranged on the side surface of the rubber plug away from the annular convex block. The end of the sliding rod away from the rubber plug penetrates through the corresponding side wall of the flow dividing cylinder and is fixedly provided with a sliding block. A spring groove is opened on the end surface of the sliding block, and a movable block is slidably arranged in the spring groove. The movable block is arranged corresponding to the positioning pull plate, and its bottom is connected to the bottom of the spring groove through a second spring. The top end of the movable block away from the flow dividing cylinder is provided with an inclined surface structure; a third spring is arranged between the sliding block and the flow dividing cylinder and is located outside the sliding rod.

8. The water and fertilizer integrated machine according to claim 7, wherein: Cylindrical adjusting rods are respectively arranged on both sides of the top of the movable block. On the top surface of the transfer tank close to the mixing tank, 7-shaped brackets are respectively arranged corresponding to the adjusting rods. An adjusting block is arranged at the end of the 7-shaped bracket away from the transfer tank. An inclined surface structure matching the top surface of the movable block is arranged on the bottom surface of the adjusting block close to the mixing tank.

9. The water and fertilizer integrated machine according to claim 7, characterized in that: The driving assembly includes a cam disc, a main synchronous shaft, a main transmission wheel and a transmission mechanism. The cam discs are respectively arranged on both sides of the filter cylinder corresponding to the bearing supports, and the cam discs are fixedly sleeved on the outer wall of the main synchronous shaft. One end of the main synchronous shaft is rotatably connected to the outer wall of the filter cylinder, and the other end of its outer wall is fixedly sleeved with a main transmission wheel. The main transmission wheel is linked with the stirring rotating shaft arranged in the inner cavity of the mixing tank through a transmission mechanism; the transmission mechanism includes an upper bevel gear, a lower bevel gear, a transmission bevel gear, a secondary synchronous shaft, a secondary transmission wheel and a transmission chain. The upper bevel gear and the lower bevel gear are fixedly sleeved on the outer wall of the stirring rotating shaft on the lower side of the stirring rod, and the upper bevel gear and the lower bevel gear are symmetrically arranged. Secondary transmission wheels are respectively arranged on both sides of the mixing tank corresponding to the two main transmission wheels. Transmission between the main transmission wheel and the corresponding secondary transmission wheel is realized through a transmission chain. The secondary transmission wheel is fixedly sleeved on the outer wall of the secondary synchronous shaft, and the end of the secondary synchronous shaft away from the secondary transmission wheel penetrates through the corresponding side wall of the mixing tank. The two secondary synchronous shafts are respectively sleeved with transmission bevel gears corresponding to the upper bevel gear and the lower bevel gear, and the two transmission bevel gears are respectively meshed with the corresponding upper bevel gear and lower bevel gear.

10. The fertigation machine according to claim 1, wherein: The spray pipe includes a water guide pipe and drip irrigation heads. The water guide pipe is fixedly arranged on the end surface of the chassis through a positioning bracket, and both ends of the water guide pipe protrude from both sides of the chassis. A plurality of drip irrigation heads are evenly arranged at the bottom of the water guide pipe on both sides of the chassis.

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