Self-propelled water and fertilizer integrated precision fertilization device

Abstract

The application relates to the technical field of fertilization, and particularly provides a self-propelled water-fertilizer integrated precision fertilization device, which comprises a walking mechanism, a water storage tank arranged on the walking mechanism, a fertilizer stirring barrel arranged on the walking mechanism, a water-fertilizer mixing pump arranged on the walking mechanism, a liquid inlet pipe of the water-fertilizer mixing pump being connected to the water storage tank and the fertilizer stirring barrel respectively, a quantitative valve being arranged on a connecting pipe between the water storage tank and the fertilizer stirring barrel to control the liquid inlet flow, a spraying unit arranged on the walking mechanism, and a liquid outlet pipe of the water-fertilizer mixing pump being connected to the spraying unit. Compared with a traditional water-fertilizer integrated fertilization system, the application reduces two water pumps and one mixing barrel, thereby increasing the water and water-fertilizer load and the single fertilization amount.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fertilization, in particular to a self-propelled water and fertilizer integrated precision fertilization device. BACKGROUND

[0002] Water and fertilizer integrated technology refers to a new agricultural technology of integrating irrigation and fertilization. Water and fertilizer integration is to use a pressure system to mix soluble solids or liquid fertilizers according to the soil nutrient content and the fertilizer requirement rules and characteristics of crop types, and to supply the mixed fertilizer solution and irrigation water through a controllable pipeline system. After the water and fertilizer are mixed, the mixed solution is supplied to the pipeline and the dripper to form drip irrigation, which can uniformly, regularly and quantitatively irrigate the root system development and growth area of crops.

[0003] The current water and fertilizer integrated fertilization system is divided into self-propelled and pipeline types. The self-propelled fertilization system does not need to set up complex pipelines, and has the advantages of simple fertilization and low cost. The current self-propelled water and fertilizer integrated fertilization system needs to integrate a water bucket, a water and fertilizer bucket and a mixing bucket on a walking mechanism. During fertilization, the water and water and fertilizer are pumped into the mixing bucket by a water pump for mixing, and then the mixed water in the mixing bucket is sent to a spraying device by a fertilization pump for spraying on crops. The fertilization system mechanism integrated with the water bucket, the water and fertilizer bucket and the mixing bucket is bulky, occupies a large volume, and has a small water and fertilizer carrying capacity, so that the single fertilization area is small. Therefore, the present application provides a self-propelled water and fertilizer integrated precision fertilization device. SUMMARY

[0004] The present application aims to provide a self-propelled water and fertilizer integrated precision fertilization device to solve the problem of small single fertilization amount of the current self-propelled water and fertilizer integrated fertilization system.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] The present application discloses a self-propelled water and fertilizer integrated precision fertilization device, which comprises:

[0007] A walking mechanism;

[0008] A water storage tank arranged on the walking mechanism;

[0009] A fertilizer stirring barrel arranged on the walking mechanism;

[0010] A water and fertilizer mixing pump arranged on the walking mechanism, the water storage tank and the fertilizer stirring barrel are respectively connected to the liquid inlet pipe of the water and fertilizer mixing pump, and a quantitative valve is arranged on the connecting pipe between the water storage tank and the fertilizer stirring barrel and the water and fertilizer mixing pump to control the liquid inlet flow;

[0011] A spraying unit arranged on the walking mechanism, and the liquid outlet pipe of the water and fertilizer mixing pump is connected to the spraying unit.

[0012] Further, the fertilizer mixing barrel comprises:

[0013] A barrel body, an inlet hole is arranged at the upper end of the barrel body, an outlet hole is arranged at the lower end of the side of the barrel body, a crushing cylinder is arranged in the barrel body, and a plurality of water permeable holes are uniformly arranged on the crushing cylinder;

[0014] A stirring motor fixedly connected to the barrel body;

[0015] A stirring unit rotatably connected to the inside of the barrel body, the stirring motor drives the stirring unit to rotate;

[0016] A crushing block slidably connected to the inside of the crushing cylinder, the crushing block is connected with the stirring unit to rotate with the stirring unit, and chamfers are arranged at the positions of the two ends of the crushing block close to the crushing cylinder.

[0017] Further, the fertilizer mixing barrel further comprises:

[0018] A flow reversing plate arranged in the barrel body, the flow reversing plate is a barrel body with one large end and one small end, the large end of the flow reversing plate is arranged close to the crushing cylinder, and the flow reversing plate is fixedly connected to the barrel body.

[0019] Further, the large end and the small end of the flow reversing plate are arc-shaped.

[0020] Further, the water and fertilizer mixing pump comprises:

[0021] A shell, inlet and outlet pipes are arranged at the two ends of the shell respectively;

[0022] A pump motor fixedly connected to the shell, a rotating shaft penetrating through the shell is arranged on the pump motor;

[0023] A first rotating impeller fixedly connected to the rotating shaft, the first rotating impeller is arranged close to the inlet pipe;

[0024] A shunt pipe fixedly connected to the inside of the shell, the shunt pipe is a cylindrical barrel with openings arranged at the two ends, outer and inner spiral plates with opposite rotation directions are arranged on the inner and outer sides of the shunt pipe, the outer spiral plate is arranged between the outer side of the shunt pipe and the inner wall of the shell, the inner spiral plate is arranged on the inner side of the shunt pipe, and the shunt pipe is arranged between the first rotating impeller and the outlet pipe.

[0025] Further, a plurality of fixed plates are arranged on the end of the shunt pipe in the circumferential direction, and the two ends of the fixed plates are fixedly connected to the shunt pipe and the inner wall of the shell.

[0026] Further, the inner diameter of the shell at the position of the shunt pipe is smaller than the inner diameter of the two ends of the shell to form a structure of small middle and large two ends, the shunt pipe is a cylinder with one end large and one end small, and the large end of the shunt pipe is close to the first rotating impeller.

[0027] Further, the water and fertilizer mixing pump further comprises:

[0028] The fixed impeller is fixedly connected to the rotating shaft, and the fixed impeller is rotationally connected to the rotating shaft;

[0029] The second rotating impeller is fixedly connected to the rotating shaft, and the second rotating impeller is located on the side, away from the shunt pipe, of the fixed impeller; and the fixed impeller and the second rotating impeller are located between the shunt pipe and the liquid outlet pipe.

[0030] Further, the fixed impeller and the second rotating impeller are provided in a plurality of groups, and the fixed impeller and the second rotating impeller are alternately arranged.

[0031] Further, the shell is further provided with a water inlet tank at one end provided with the liquid inlet pipe, the liquid inlet pipe is arranged on both sides of the water inlet tank, and the two liquid inlet pipes are symmetrically arranged.

[0032] Compared with the prior art, the self-propelled water and fertilizer integrated precision fertilization device has the following beneficial effects:

[0033] The self-propelled water and fertilizer integrated precision fertilization device disclosed in the embodiment of the present application integrates the water and water fertilizer mixing mechanism into the water pump, extracts water and water fertilizer in the water storage tank and the fertilizer stirring barrel through the water pump, and sprays the mixed water and water fertilizer from the spraying unit to crops, thereby reducing two water pumps and a mixing barrel compared with the traditional water and fertilizer integrated fertilization system, increasing the load of water and water fertilizer, and increasing the single fertilization amount. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 The self-propelled water and fertilizer integrated precision fertilization device disclosed in the embodiment of the present application is a structural schematic view.

[0035] Figure 2 The self-propelled water and fertilizer integrated precision fertilization device disclosed in the embodiment of the present application is a structural schematic view of the fertilizer stirring barrel.

[0036] Figure 3 The self-propelled water and fertilizer integrated precision fertilization device disclosed in the embodiment of the present application is a front view of the fertilizer stirring barrel.

[0037] Figure 4 The self-propelled water and fertilizer integrated precision fertilization device disclosed in the embodiment of the present application is a front view of the fertilizer stirring barrel. Figure 3 The self-propelled water and fertilizer integrated precision fertilization device disclosed in the embodiment of the present application is a front view of the fertilizer stirring barrel.

[0038] Figure 5 The self-propelled water and fertilizer integrated precision fertilization device disclosed in the embodiment of the present application is a front view of the fertilizer stirring barrel.Figure 4 Axonometric view.

[0039] Figure 6 Structure diagram of the stirring mechanism in the self-propelled water and fertilizer integrated precision fertilization device disclosed in the embodiment of the present application.

[0040] Figure 7 Structure diagram of the water and fertilizer mixing pump in the self-propelled water and fertilizer integrated precision fertilization device disclosed in the embodiment of the present application.

[0041] Figure 8 Front view of the water and fertilizer mixing pump in the self-propelled water and fertilizer integrated precision fertilization device disclosed in the embodiment of the present application.

[0042] Figure 9 For Figure 8 A-A full section view.

[0043] Figure 10 Structure diagram of the internal structure of the water and fertilizer mixing pump in the self-propelled water and fertilizer integrated precision fertilization device disclosed in the embodiment of the present application.

[0044] Figure 11 Structure diagram of the shunt pipe in the self-propelled water and fertilizer integrated precision fertilization device disclosed in the embodiment of the present application.

[0045] Reference signs:

[0046] 100, water storage tank; 200, fertilizer stirring barrel; 210, barrel body; 211, supporting foot; 220, stirring motor; 230, stirring unit; 240, crushing cylinder; 250, overturning plate; 260, crushing block; 270, connecting rod; 300, water and fertilizer mixing pump; 310, shell; 311, first shell; 312, second shell; 313, third shell; 314, fixing screw rod; 315, water inlet tank; 320, pump motor; 321, rotating shaft; 330, first rotating impeller; 340, shunt pipe; 341, fixing plate; 342, outer spiral plate; 343, inner spiral plate; 350, fixed impeller; 360, second rotating impeller; 400, spraying unit; 500, quantitative valve. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the protection scope of the present application.

[0048] As Figure 1As shown, an embodiment of the present invention provides a self-propelled integrated water and fertilizer precision fertilizing device, which includes a water storage tank 100, a fertilizer mixing barrel 200, a water and fertilizer mixing pump 300, a spray unit 400 and a metering valve 500. The water storage tank 100 and the fertilizer mixing barrel 200 are respectively connected to the liquid inlet pipe of the water and fertilizer mixing pump 300. The metering valve 500 is provided on the connecting pipe between the water storage tank 100 and the fertilizer mixing barrel 200 and the water and fertilizer mixing pump 300 to control the liquid inlet flow rate. The liquid outlet pipe of the water and fertilizer mixing pump 300 is connected to the spray unit 400 for fertilization. The water storage tank 100, the fertilizer mixing barrel 200, the water and fertilizer mixing pump 300, the spray unit 400 and the metering valve 500 are fixedly connected to the walking mechanism.

[0049] Specifically, in this embodiment, when fertilizing, the flow rate of water and water-fertilizer entering the water-fertilizer mixing pump 300 is set by the metering valve 500, and the water-fertilizer mixing pump 300 draws water and water-fertilizer from the water storage tank 100 and the fertilizer mixing barrel 200 respectively, mixes them in the water-fertilizer mixing pump 300, and then sends them to the spray unit 400. The spray unit 400 irrigates the mixed fertilizer on the crops. During the irrigating process, the walking mechanism moves in the field, thereby fertilizing the crops in the field.

[0050] The self-propelled integrated water and fertilizer precision fertilization device disclosed in an embodiment of the present invention integrates a water and fertilizer mixing mechanism into a water pump. The water and fertilizer in the water storage tank 100 and the fertilizer mixing barrel 200 are pumped by the water pump, and the water and fertilizer are mixed and then sprayed onto the crops from the spray unit 400. Compared with the traditional integrated water and fertilizer fertilization system, the two water pumps and one mixing barrel are reduced, thereby increasing the load of water and fertilizer and increasing the amount of fertilizer applied per time.

[0051] Specifically, in this embodiment, the water tank 100 is a plastic barrel in the prior art, and the water tank 100 is fixed to a traveling mechanism, and the traveling mechanism is a prior art, for example, the traveling mechanism is an electric tricycle, and has a chassis structure with a traveling function;

[0052] As a preferred implementation in this embodiment, Figures 2 to 6 As shown, the fertilizer mixing barrel 200 includes:

[0053] The barrel body 210 has a feed hole at its upper end and a discharge hole at its lower side. A crushing cylinder 240 is provided inside the barrel body 210 and has a plurality of water-permeable holes evenly distributed on the crushing cylinder 240.

[0054] A stirring motor 220 fixedly connected to the barrel 210;

[0055] A stirring unit 230 is rotatably connected inside the barrel 210, and the stirring motor 220 drives the stirring unit 230 to rotate;

[0056] A crushing block 260 is slidably connected inside the crushing cylinder 240, and the crushing block 260 is connected with the stirring unit 230 to rotate with the stirring unit 230. The crushing block 260 is provided with a chamfer at the position close to the crushing cylinder 240 at both ends;

[0057] In this embodiment, the waste and water enter the barrel 210 from the feeding hole of the barrel 210. When the fertilizer is stirred, the stirring motor 220 is driven to rotate, and the stirring motor 220 drives the stirring unit 230 and the crushing block 260 to rotate. When the stirring unit 230 rotates, it drives the water in the barrel 210 to form a vortex, and the fertilizer rotates with the water and is gathered on the inner wall of the crushing cylinder 240 under the action of centrifugal force. When the crushing block 260 rotates with the stirring unit 230, it grinds the fertilizer in cooperation with the inner wall of the crushing cylinder 240. The ground fertilizer is more easily dissolved in water, thereby increasing the dissolution speed of the fertilizer. At the same time, the crushing cylinder 240 also plays a filtering role to prevent large particles of fertilizer from flowing into the water-fertilizer mixing pump 300;

[0058] Specifically, in this embodiment, the barrel 210 is a cylindrical shape with both ends closed, the feeding hole is arranged at the top of the barrel 210, the discharging hole is arranged on the side of the barrel 210, the crushing cylinder 240 is a cylindrical shape with openings at both ends, one end of the crushing cylinder 240 is fixedly connected to the bottom of the barrel 210 by welding, the outside of the bottom of the barrel 210 is fixedly connected with a support leg 211 by bolts, the support leg 211 is fixed to the traveling mechanism by bolts, the stirring motor 220 is fixedly connected to the outside of the bottom of the barrel 210 by bolts, the stirring unit 230 is a prior art, the rotating shaft of the stirring unit 230 penetrates through the barrel 210 and is fixedly connected with the output shaft of the stirring motor 220, the crushing block 260 is a trapezoidal block, the small end of the crushing block 260 is an arc shape that fits the inner wall of the crushing cylinder 240, the crushing block 260 is fixedly connected with the stirring unit 230 through the connecting rod 270, the crushing block 260 is provided with a plurality of crushing blocks 260, and the plurality of crushing blocks 260 are uniformly distributed around the axis of the stirring unit 230, the connecting rod 270 is fixedly connected to the crushing block 260 and the stirring unit 230 by screws or welding, and a gap is provided between the barrel 210 and the crushing cylinder 240;

[0059] As a preferred embodiment in this embodiment, the fertilizer stirring barrel 200 further comprises:

[0060] A baffle plate 250 is arranged inside the barrel 210, the baffle plate 250 is a cylinder with one end large and one end small, the large end of the baffle plate 250 is arranged close to the crushing cylinder 240, the baffle plate 250 is fixedly connected to the barrel 210 by welding, and the large end and the small end of the baffle plate 250 are arc-shaped transitions;

[0061] When the water in the barrel 210 is driven by the stirring unit 230 to form a vortex, the water moves to the inner wall of the barrel 210 under the action of centrifugal force, and the water is stacked on the inner wall of the barrel 210. The stacked water moves upward along the inner wall of the barrel 210 and moves to the inside of the barrel 210 along the baffle plate 250, and falls into the crushing cylinder 240 under the action of gravity when reaching the highest point, so that the water in the barrel 210 forms a circulation, and the falling water impacts the water in the middle, which can accelerate the dissolution of the fertilizer, and make the water and the fertilizer in the barrel 210 more uniform;

[0062] It should be noted that the fertilizer stirring barrel 200 can also be a traditional water-fertilizer mixing barrel, but as a preferred way, the fertilizer stirring barrel 200 disclosed above can accelerate the dissolution of the fertilizer, improve the mixing efficiency of the fertilizer and water, and thus improve the fertilization efficiency.

[0063] As a preferred embodiment in the embodiment, as shown in Figures 7 to 10 The water-fertilizer mixing pump 300 comprises:

[0064] A shell 310, the two ends of the shell 310 are respectively provided with a liquid inlet pipe and a liquid outlet pipe;

[0065] A pump motor 320 fixedly connected to the shell 310, the pump motor 320 is provided with a rotating shaft 321 penetrating the shell 310;

[0066] A first rotating impeller 330 fixedly connected to the rotating shaft 321, the first rotating impeller 330 is located close to the liquid inlet pipe;

[0067] A shunt pipe 340 fixedly connected to the inside of the shell 310, the shunt pipe 340 is a cylindrical tube with openings at both ends, the inside and outside of the shunt pipe 340 are provided with outer spiral plates 342 and inner spiral plates 343 with opposite rotation directions, the outer spiral plates 342 are located between the outer side of the shunt pipe 340 and the inner wall of the shell 310, and the inner spiral plates 343 are located on the inner side of the shunt pipe 340, the shunt pipe 340 is located between the first rotating impeller 330 and the liquid outlet pipe;

[0068] In the embodiment, when the pump motor 320 is powered to rotate, the pump motor 320 drives the rotating shaft 321 to rotate, the rotating shaft 321 drives the first rotating impeller 330 to rotate, the first rotating impeller 330 extracts the liquid in the water storage tank 100 and the fertilizer mixing barrel 200 and delivers it to the liquid outlet pipe, and the water and the water and fertilizer flowing into the water and fertilizer mixing pump 300 are preliminarily mixed to form mixed water under the driving of the first rotating impeller 330, and then pass through the shunt pipe 340 and are shunted at the shunt pipe 340. The mixed water flowing through the outside of the shunt pipe 340 is driven to rotate in the forward direction under the driving of the outer spiral plate 342 (since the mixed water exerts a force on the outer spiral plate 342 perpendicular to the outer spiral plate 342 when flowing through the outer spiral plate 342, the outer spiral plate 342 exerts a force on the mixed water along the normal direction of the outer spiral plate 342, and the outer spiral plate 342 is spiral, the force exerted by the outer spiral plate 342 on the mixed water drives the water to rotate), and the mixed water flowing through the inside of the shunt pipe 340 is driven to rotate in the reverse direction under the driving of the outer spiral plate 342. The mixed water flowing out of the shunt pipe 340 is mixed again in two rotation directions and forms an impact at the mixing position, the impact force disturbs the rotation of the mixed water and accelerates the mixing of the water and the water and fertilizer. At the same time, when the mixed water flows through the shunt pipe 340, the outer spiral plate 342 and the inner spiral plate 343 also form an impact on the mixed water, accelerate the mixing efficiency of the water and the water and fertilizer, so that the water and the water and fertilizer can be uniformly mixed in the water and fertilizer mixing pump 300.

[0069] Specifically, in the embodiment, the pump motor 320 is fixedly connected to the shell 310 by bolts, the rotating shaft 321 is rotatably connected to the inside of the shell 310 by a bearing, and the first rotating impeller 330 is a turbine blade in the prior art, which is fixedly connected to the rotating shaft 321 by screws.

[0070] As shown in Figure 11 The end of the shunt pipe 340 is provided with a plurality of fixed plates 341 in the circumferential direction, and the two ends of the fixed plate 341 are fixedly connected to the inner wall of the shunt pipe 340 and the shell 310 by welding.

[0071] As a preferred embodiment in the present embodiment, the shell 310 has a smaller inner diameter at the position of the shunt pipe 340 than at the two ends of the shell 310, the shunt pipe 340 is a cylinder with a large end and a small end, the large end of the shunt pipe 340 is close to the first rotating impeller 330, and the speed of the mixed water flowing through the shunt pipe 340 is increased due to the smaller inner diameter of the shell 310 at the position of the shunt pipe 340, so that the impact force of the mixed water flowing out of the shunt pipe 340 is increased when the mixed water flows out of the shunt pipe 340 again, thereby improving the mixing effect of the mixed water flowing out of the shunt pipe 340 again, and the fixed plate 341 is fixedly connected to the large end of the shunt pipe 340;

[0072] As a preferred embodiment in the present embodiment, as shown in Figure 9 and Figure 10 The water and fertilizer mixing pump 300 further comprises:

[0073] A fixed impeller 350 fixedly connected to the rotating shaft 321, the fixed impeller 350 is rotationally connected to the rotating shaft 321;

[0074] A second rotating impeller 360 fixedly connected to the rotating shaft 321, the second rotating impeller 360 is located on the side of the fixed impeller 350 away from the shunt pipe 340, and the fixed impeller 350 and the second rotating impeller 360 are located between the shunt pipe 340 and the liquid outlet pipe;

[0075] In the present embodiment, when the mixed water flowing out of the shunt pipe 340 flows through the fixed impeller 350, the fixed impeller 350 blocks the rotation of the mixed water in the circumferential direction, and when the second rotating impeller 360 rotates, it drives the mixed water to rotate while pressurizing the mixed water, thereby increasing the pressure of the mixed water, and at the same time, the second rotating impeller 360 drives the water and the water and fertilizer to mix again, thereby improving the mixing effect of the water and the water and fertilizer;

[0076] Specifically, the blades of the fixed impeller 350 are fixedly connected to the inner wall of the shell 310 by welding, and the second rotating impeller 360 has the same structure as the first rotating impeller 330;

[0077] Preferably, the blades of the fixed impeller 350 are inclined in the axial direction of the rotating shaft 321, and the inclination direction of the blades of the fixed impeller 350 is opposite to the rotation direction of the second rotating impeller 360, thereby improving the mixing effect;

[0078] Preferably, the fixed impeller 350 and the second rotating impeller 360 are provided in several groups, and the fixed impeller 350 and the second rotating impeller 360 are alternately arranged, and in the embodiment, the fixed impeller 350 and the second rotating impeller 360 are provided in two groups;

[0079] As a preferred embodiment in the embodiment, the shell 310 includes a first shell 311, a second shell 312 and a third shell 313, the first rotating impeller 330 is located at the first shell 311, the flow divider 340 is located at the second shell 312, the fixed impeller 350 and the second rotating impeller 360 are located at the third shell 313, the first shell 311 and the third shell 313 are located on both sides of the second shell 312, the first shell 311 and the third shell 313 are both a cylinder provided with an opening at one end, the second shell 312 is a cylinder with large ends and a small middle part and provided with openings at both ends, and the first shell 311, the second shell 312 and the third shell 313 are connected through a fixed screw 314;

[0080] Preferably, the first shell 311 is further provided with a water inlet tank 315, and the liquid inlet pipes are arranged on both sides of the water inlet tank 315, and the two liquid inlet pipes are symmetrically arranged, so that the water and the water-fertilizer mixture flowing from the water storage tank 100 and the fertilizer mixing barrel 200 are mixed by mutual impact when entering the water inlet tank 315, thereby improving the mixing effect of the fertilizer mixing barrel 200.

[0081] In some examples, the first shell 311 and the third shell 313 are provided with motor supports, and the motor supports are fixedly connected to the traveling mechanism through bolts.

[0082] In the embodiment, the spraying unit 400 is a prior art, such as a horizontal pipe, and the spraying unit 400 is provided with a plurality of spray openings, and the quantitative valve 500 is a prior art, and the quantitative valve 500 is arranged on the discharge pipe of the water storage tank 100 and the fertilizer mixing barrel 200.

[0083] In some examples, the quantitative valve 500 is controlled by a control system, such as a single-chip microcomputer, a computer or a control device located on the traveling mechanism.

[0084] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A self-propelled water-fertilizer integrated precision fertilization device, characterized in that: The fertilizing device comprises: Traveling mechanism; a water tank provided on the traveling mechanism; A fertilizer stirring barrel is provided on the walking mechanism, and the fertilizer stirring barrel includes a barrel body, a stirring motor, a stirring unit and a turning plate. The upper end of the barrel body is provided with a feeding hole, the lower end of the side of the barrel body is provided with a discharge hole, the interior of the barrel body is provided with a crushing barrel, and the crushing barrel is evenly distributed with a plurality of water-permeable holes. The stirring motor is fixedly connected to the barrel body, the stirring unit is rotatably connected to the interior of the crushing barrel, and the stirring motor drives the stirring unit to rotate. The turning plate is a barrel body with one end large and the other end small, the large end of the turning plate is provided near the crushing barrel, and the turning plate is fixedly connected to the interior of the barrel body; A water-fertilizer mixing pump is provided on the walking mechanism, the water storage tank and the fertilizer mixing barrel are respectively connected to the liquid inlet pipe of the water-fertilizer mixing pump, and a quantitative valve is further provided on the connecting pipe between the water storage tank and the fertilizer mixing barrel and the water-fertilizer mixing pump to control the liquid inlet flow rate; A spray unit is provided on the walking mechanism, and a liquid outlet pipe of the water-fertilizer mixing pump is connected to the spray unit.

2. The self-propelled water-fertilizer integrated precision fertilization device according to claim 1, characterized in that: The fertilizer stirring barrel also includes: A crushing block is slidably connected to the inner side of the crushing cylinder, and the crushing block is connected to the stirring unit to rotate with the stirring unit. Both ends of the crushing block are provided with chamfers near the crushing cylinder.

3. The self-propelled water-fertilizer integrated precision fertilization device according to claim 2, characterized in that: The large end and the small end of the turnover plate are in an arc-shaped transition.

4. The self-propelled water-fertilizer integrated precision fertilization device according to any one of claims 1 to 3, characterized in that: The water-fertilizer mixing pump comprises: A shell, with a liquid inlet pipe and a liquid outlet pipe respectively provided at both ends of the shell; a pump motor fixedly connected to the housing, wherein the pump motor is provided with a rotating shaft passing through the housing; a first rotating impeller fixedly connected to the rotating shaft, wherein the first rotating impeller is located near the liquid inlet pipe; A shunt pipe is fixedly connected to the inside of the shell, and the shunt pipe is cylindrical with openings at both ends. An outer spiral plate and an inner spiral plate with opposite rotation directions are provided on the inner and outer sides of the shunt pipe. The outer spiral plate is located between the outer side of the shunt pipe and the inner wall of the shell, and the inner spiral plate is located on the inner side of the shunt pipe. The shunt pipe is located between the first rotating impeller and the liquid outlet pipe.

5. The self-propelled water-fertilizer integrated precision fertilization device according to claim 4 is characterized in that: A plurality of fixing plates are provided at the end of the shunt pipe in the circumferential direction, and both ends of the fixing plates are fixedly connected to the shunt pipe and the inner wall of the shell.

6. The self-propelled water-fertilizer integrated precision fertilization device according to claim 4, characterized in that: The inner diameter of the shell at the location of the diverter pipe is smaller than the inner diameters of the two ends of the shell to form a structure with a small middle and large ends. The diverter pipe is a cylinder with a large opening at one end and a small opening at the other end. The large end of the diverter pipe is close to the first rotating impeller.

7. The self-propelled water-fertilizer integrated precision fertilization device according to claim 4, characterized in that: The water-fertilizer mixing pump also includes: a fixed impeller fixedly connected to the rotating shaft, wherein the fixed impeller is rotatably connected to the rotating shaft; A second rotating impeller is fixedly connected to the rotating shaft, the second rotating impeller is located on a side of the fixed impeller away from the shunt pipe, and the fixed impeller and the second rotating impeller are located between the shunt pipe and the liquid outlet pipe.

8. The self-propelled water-fertilizer integrated precision fertilization device according to claim 7, characterized in that: The fixed impellers and the second rotating impellers are provided in a plurality of groups, and the fixed impellers and the second rotating impellers are alternately arranged.

9. The self-propelled water-fertilizer integrated precision fertilization device according to claim 4, characterized in that: The shell is further provided with a water inlet box at one end where the liquid inlet pipe is provided. The liquid inlet pipe is provided on both sides of the water inlet box, and the two liquid inlet pipes are symmetrically arranged.

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