Multifunctional water and fertilizer integrated irrigation machine

Abstract

The utility model discloses a multifunctional water and fertilizer integrated irrigation machine which comprises a controller, a water source conveying and filtering device, a solid fertilizer filling device and a liquid fertilizer pesticide filling device, the controller is electrically connected with various sensors, the electric mechanism and the electric valve, so that automatic control can be realized; the water source conveying and filtering device comprises a water pump and a self-cleaning filter and can be used for conveying a water source and carrying out secondary water source filtration; the solid fertilizer filling device comprises a fertilizer dissolving water tank, a fertilizer solution filter, a shearing pump and a fertilizer solution filling pump; according to the device, the fertilizer can be injected into the fertilizer dissolving water tank in proportion, the shearing pump can circularly stir, shear, crush and dissolve the granular fertilizer, and the granular fertilizer solution is quantitatively applied into a farmland at a constant speed through an irrigation pipeline; the liquid fertilizer and pesticide filling device and the liquid fertilizer and pesticide diaphragm pump can be used for quantitatively filling liquid fertilizer and / or pesticide into the fertilizer dissolving water tank at a constant speed. The fertilizer dissolving device is complete in function, high in adaptability, good in filtering effect and high in fertilizer dissolving efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of farmland irrigation equipment, in particular to a multifunctional water-fertilizer integrated irrigation machine. Background Art

[0002] The water-fertilizer integration technology is to transport water from rivers, reservoirs, and wells to the water-fertilizer integration irrigation machine, which irrigates the farmland with water, fertilizer, and pesticide in a quantitative and proportional manner through drip irrigation or sprinkler irrigation. In the prior art, the water-fertilizer integration irrigation equipment generally only has the function of adding fertilizer and pesticide into the pipeline in a quantitative and proportional manner. The better equipment also includes a water source filtration function, but generally does not include a water source power transmission function, or the water source transmission function is incomplete. Utility Model Content

[0003] The utility model aims to solve the problems existing in the prior art and provides a multifunctional water-fertilizer integrated irrigation machine, which has complete functions, strong adaptability, good filtering effect and high fertilizer dissolving efficiency.

[0004] The purpose of the utility model is achieved as follows: a multifunctional water-fertilizer integrated irrigation machine, which includes a controller, a water source conveying and filtering device, a solid fertilizer filling device and a liquid fertilizer and pesticide filling device;

[0005] The water source conveying and filtering device comprises a water pump and a self-cleaning filter, wherein the self-cleaning filter is provided with a water source inlet pipe, a water source outlet pipe, a secondary clean water outlet, and a fertilizer and pesticide solution filling port;

[0006] The solid fertilizer filling device comprises a fertilizer-dissolving water tank, a fertilizer solution filter, a shear pump and a fertilizer solution filling pump. The fertilizer-dissolving water tank is provided with a fertilizer-dissolving water inlet, a fertilizer solution outlet, a fertilizer solution inlet and a liquid fertilizer and pesticide inlet; the fertilizer-dissolving water inlet is connected to the secondary clean water outlet through a fertilizer-dissolving water injection pipe, an electric fertilizer-dissolving water injection valve is provided on the fertilizer-dissolving water injection pipe, and a water level sensor is provided inside the fertilizer-dissolving water tank; one or more fertilizer hoppers are arranged on the upper part of the fertilizer-dissolving water tank, and an electric fertilizer applicator for filling granular fertilizer into the fertilizer-dissolving water tank is arranged under each fertilizer hopper; the fertilizer solution filter comprises a filter water inlet, a filter water outlet and a filter sewage outlet, the shear pump inlet is connected to the fertilizer solution outlet, the shear pump outlet is connected to the filter water inlet, and the filter sewage outlet is connected to the fertilizer solution inlet through a pipeline and a reflux regulating valve; the filter water outlet is connected to the fertilizer and pesticide solution filling port through a pipeline and a fertilizer solution filling pump;

[0007] The liquid fertilizer and pesticide filling device comprises a liquid fertilizer and pesticide box, which is provided with a liquid fertilizer and pesticide dissolving water inlet and a liquid fertilizer and pesticide outlet, the liquid fertilizer and pesticide dissolving water inlet is connected to the secondary clean water outlet through a pipeline and a fertilizer and pesticide box water filling valve, and the liquid fertilizer and pesticide outlet is connected to the liquid fertilizer and pesticide inlet through a pipeline and an electric liquid fertilizer and pesticide valve, a liquid fertilizer and pesticide filter, a liquid fertilizer and pesticide diaphragm pump and a liquid fertilizer and pesticide check valve sequentially arranged on the pipeline;

[0008] The controller is electrically connected with a water level sensor, an electric fertilizer dissolving water injection valve, an electric fertilizer applicator, a shear pump, a fertilizer solution filling pump, and a liquid fertilizer and pesticide diaphragm pump.

[0009] Preferably, the self-cleaning filter comprises a primary filter cartridge and a secondary filter cartridge, a primary cylindrical filter screen is arranged inside the primary filter cartridge, a primary front-net cavity is inside the primary cylindrical filter screen, a primary rear-net cavity is between the outside of the primary cylindrical filter screen and the inner wall of the primary filter cartridge, a primary filter screen brush driven to rotate by a primary brush screen motor is arranged inside the primary cylindrical filter screen; a secondary cylindrical filter screen is arranged inside the secondary filter cartridge, a secondary front-net cavity is inside the secondary cylindrical filter screen, a secondary rear-net cavity is between the outside of the secondary cylindrical filter screen and the inner wall of the secondary filter cartridge, a secondary filter screen brush driven to rotate by a secondary brush screen motor is arranged inside the secondary cylindrical filter screen; a water source inlet pipe connected to the primary front-net cavity is arranged at the water inlet end of the primary filter cartridge, a first pressure source for detecting the pressure of the primary front-net cavity is arranged on the water source inlet pipe Sensor, a first-level sewage cylinder connected to the first-level net front cavity is provided at the water outlet end of the first-level filter cartridge, the first-level sewage cylinder is connected to the first-level sewage pipe, and a first-level electric sewage valve is provided on the first-level sewage pipe; a filter connecting pipe is connected between the water inlet end of the second-level filter cartridge and the peripheral wall of the first-level filter cartridge, the filter connecting pipe connects the first-level net rear cavity with the second-level net front cavity, a second pressure sensor for detecting the internal pressure of the filter connecting pipe is provided on the filter connecting pipe, a second-level sewage cylinder connected to the second-level net front cavity is provided at the water outlet end of the second-level filter cartridge, the second-level sewage cylinder is connected to the second-level sewage pipe, and a second-level electric sewage valve is provided on the second-level sewage pipe, and a water source outlet pipe connected to the second-level net rear cavity, a second-level clean water outlet, a fertilizer solution filling port, and a third pressure sensor for detecting the pressure of the second-level net rear cavity are provided on the peripheral wall of the second-level filter cartridge;

[0010] The self-cleaning filter is an electric self-cleaning filter automatically controlled by a controller, and the controller is electrically connected to the first pressure sensor, the second pressure sensor, the third pressure sensor, the first electric drain valve, the second electric drain valve, the first brush motor, and the second brush motor.

[0011] Preferably, the first-stage cylindrical filter screen has a mesh size of 20 to 40, and the second-stage cylindrical filter screen has a mesh size of 40 to 120.

[0012] Preferably, an aeration plate connected to an aeration fan is provided inside the liquid fertilizer and pesticide box, and the controller is electrically connected to the aeration fan.

[0013] Preferably, the water pump of the water source conveying and filtering device is a centrifugal pump, and in order to facilitate starting the centrifugal pump, it is also provided with an exhaust and water diversion device.

[0014] Preferably, the exhaust and water diversion device includes a water ring vacuum pump, a vacuum pump water tank and a water inlet stop valve installed on a water source inlet pipe. The water ring vacuum pump includes an air intake port, an exhaust port and a water supply port. The water supply port is connected to the vacuum pump water tank through a water supply pipe and a water supply valve. The air intake port is connected to the water source inlet pipe between the centrifugal pump and the water inlet stop valve through an air intake pipe. The exhaust port is connected to the vacuum pump water tank through an exhaust pipe.

[0015] Preferably, the utility model also includes a water source filter arranged at the water source, and a first-level clean water outlet connected to the first-level net rear cavity is provided on the peripheral wall of the first-level filter cylinder, and the first-level clean water outlet is connected to a water source cleaning pipe used to clean the water source filter. A water source cleaning pump is provided on the water source cleaning pipe, and the controller is electrically connected to the water source cleaning pump.

[0016] Preferably, there are four fertilizer hoppers.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] (1) The utility model is provided with a liquid fertilizer and pesticide filling device, which includes a liquid fertilizer and pesticide box, into which liquid fertilizer and pesticide can be filled at one time, and the liquid fertilizer and / or pesticide in the liquid fertilizer and pesticide box can be filled into the fertilizer dissolving water tank at a set flow rate by a liquid fertilizer and pesticide diaphragm pump, and the liquid fertilizer and / or pesticide are mixed with the fertilizer solution in the fertilizer dissolving water tank, and then filled into the fertilizer and pesticide solution filling port by the fertilizer solution filling pump at a set flow rate, so that the liquid fertilizer and / or pesticide can be used quantitatively and accurately. Compared with the prior art, it simplifies the structure, reduces the volume and production cost, and improves the operational reliability.

[0019] (2) The utility model self-cleaning filter comprises a primary filter cartridge and a secondary filter cartridge, wherein a primary cylindrical filter screen is arranged inside the primary filter cartridge, and a secondary cylindrical filter screen is arranged inside the secondary filter cartridge. It adopts two-stage filtration, wherein the primary cylindrical filter screen filters large particles of impurities, and the secondary cylindrical filter screen filters small particles of impurities, which can effectively reduce the filtration resistance and improve the filtration efficiency.

[0020] (3) The utility model is provided with a controller, which controls the operation of various electric mechanisms and valves, so that unattended operation can be achieved, and further remote control operation can be achieved.

[0021] (4) The utility model can apply solid granular fertilizer, liquid fertilizer and pesticide along with water, and the whole machine has a compact structure and complete functions.

[0022] (5) Optimal solution: the water pump of the water source conveying and filtering device of the utility model is a centrifugal pump. In order to facilitate the starting of the centrifugal pump, an exhaust and water diversion device is also provided. The exhaust and water diversion device can exhaust the air in the centrifugal pump and the pipeline and fill it with water, so as to facilitate the starting of the centrifugal pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the utility model multifunctional water-fertilizer integrated irrigation machine;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the primary cylindrical filter and the secondary cylindrical filter of the utility model;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the primary filter brush and the secondary filter brush of the utility model;

[0026] Figure 4 The utility model is a schematic diagram of the cross-sectional structure of a fertilizer solution filter.

[0027] In the figure: 1 controller, 2 primary filter cartridge, 3 primary cylindrical filter, 4 primary screen brush motor, 5 primary screen brush, 6 water source inlet pipe, 7 first pressure sensor, 8 primary sewage cylinder, 9 primary sewage pipe, 10 primary electric sewage valve, 11 primary clean water outlet, 12 filter connecting pipe, 13 second pressure sensor, 14 secondary filter cartridge, 15 secondary cylindrical filter, 16 secondary screen brush motor, 17 secondary screen brush, 18 secondary sewage cylinder, 19 secondary sewage pipe, 20 secondary electric sewage valve, 21 water source outlet pipe, 22 secondary clean water outlet, 23 fertilizer solution filling port, 24 third pressure sensor, 25 fertilizer water tank, 26 fertilizer solution filter, 27 shear pump, 28 fertilizer solution filling pump, 29 fertilizer water inlet, 30 fertilizer solution outlet, 31 fertilizer Solution inlet, 32 liquid fertilizer and pesticide inlet, 33 soluble fertilizer water injection pipe, 34 electric soluble fertilizer water injection valve, 35 water level sensor, 36 fertilizer hopper, 37 electric fertilizer applicator, 38 filter water inlet, 39 filter water outlet, 40 filter sewage outlet, 41 reflux regulating valve, 42 liquid fertilizer and pesticide box, 43 soluble medicine water inlet, 44 liquid fertilizer and pesticide outlet, 45 fertilizer and pesticide box water injection valve, 46 electric liquid fertilizer and pesticide valve, 47 liquid fertilizer and pesticide filter, 48 liquid fertilizer and pesticide diaphragm pump, 49 liquid fertilizer and pesticide check valve, 50 aeration fan, 51 aeration plate, 52 centrifugal pump, 53 water inlet stop valve, 54 water ring vacuum pump, 55 vacuum pump water tank, 56 water supply pipe, 57 water supply valve, 58 suction pipe, 59 exhaust pipe, 60 water source filter, 61 water source cleaning pump, 62 water source cleaning pipe. DETAILED DESCRIPTION

[0028] The utility model is described in detail below in conjunction with the accompanying drawings.

[0029] like Figures 1 to 4 As shown, a multifunctional water-fertilizer integrated irrigation machine includes a controller 1, a water source conveying and filtering device, a solid fertilizer filling device and a liquid fertilizer and pesticide filling device;

[0030] The water source conveying and filtering device comprises a centrifugal pump 52 and a self-cleaning filter, the self-cleaning filter comprises a primary filter cartridge 2 and a secondary filter cartridge 14, a primary cylindrical filter screen 3 of 40 mesh is arranged inside the primary filter cartridge 2, the first cylindrical filter screen 3 has a primary net front cavity inside, the first cylindrical filter screen 3 has a primary net rear cavity between the outside of the primary cylindrical filter screen 3 and the inner wall of the primary filter cartridge 2, a primary filter screen brush 5 driven to rotate by a primary net brush motor 4 is arranged inside the primary cylindrical filter screen 3; a secondary cylindrical filter screen 15 of 80 mesh is arranged inside the secondary filter cartridge 14, the second cylindrical filter screen 15 has a secondary net front cavity inside, the second cylindrical filter screen 15 has a secondary net rear cavity between the outside of the secondary cylindrical filter screen 15 and the inner wall of the secondary filter cartridge 14, a secondary filter screen brush 17 driven to rotate by a secondary net brush motor 16 is arranged inside the secondary cylindrical filter screen 15; a water source inlet pipe 6 connected to the primary net front cavity is arranged at the water source inlet pipe 6, a detection device for detecting the first net front cavity is arranged on the water source inlet pipe 6 A first pressure sensor 7 for cavity pressure is provided, a first sewage cylinder 8 connected to the first-level net front cavity is provided at the water outlet end of the first-level filter cartridge 2, the first-level sewage cylinder 8 is connected to the first-level sewage pipe 9, and a first-level electric sewage valve 10 is provided on the first-level sewage pipe 9, a filter connecting pipe 12 is connected between the water inlet end of the second-level filter cartridge 14 and the peripheral wall of the first-level filter cartridge 2, the filter connecting pipe 12 connects the first-level net rear cavity with the second-level net front cavity, and a second pressure sensor 13 for detecting the internal pressure of the filter connecting pipe is provided on the filter connecting pipe 12, a second sewage cylinder 18 connected to the second-level net front cavity is provided at the water outlet end of the second-level filter cartridge 14, the second-level sewage cylinder 18 is connected to the second-level sewage pipe 19, and a second-level electric sewage valve 20 is provided on the second-level sewage pipe 19, and a water source outlet pipe 21 connected to the second-level net rear cavity, a second-level clean water outlet 22, a fertilizer solution filling port 23 and a third pressure sensor 24 for detecting the pressure of the second-level net rear cavity are provided on the peripheral wall of the second-level filter cartridge 14.

[0031] In order to facilitate the starting of the centrifugal pump 52, it is also provided with an exhaust and water diversion device, which includes a water ring vacuum pump 54, a vacuum pump water tank 55 and a water inlet stop valve 53 installed on the water source inlet pipe 6. The water ring vacuum pump 54 includes an air intake port, an exhaust port, and a water supply port. The water supply port is connected to the vacuum pump water tank 55 through a water supply pipe 56 and a water supply valve 57. The air intake port is connected to the water source inlet pipe 6 between the centrifugal pump 52 and the water inlet stop valve 53 through an air intake pipe 58, and the exhaust port is connected to the vacuum pump water tank 55 through an exhaust pipe 59.

[0032] In order to adapt to the use of rivers, reservoirs and water sources, it also includes a water source filter 60 arranged at the water source, and a first-level clean water outlet 11 connected to the first-level net rear cavity is provided on the peripheral wall of the first-level filter cylinder 2. The first-level clean water outlet 11 is connected to a water source cleaning pipe 62 for cleaning the water source filter 60, and a water source cleaning pump 61 is provided on the water source cleaning pipe 62.

[0033] The solid fertilizer filling device comprises a fertilizer dissolving water tank 25, a fertilizer solution filter 26, a shear pump 27 and a fertilizer solution filling pump 28. The fertilizer dissolving water tank 25 is provided with a fertilizer dissolving water inlet 29, a fertilizer solution outlet 30, a fertilizer solution inlet 31 and a liquid fertilizer pesticide inlet 32; the fertilizer dissolving water inlet 29 is connected to the secondary water outlet 22 through a fertilizer dissolving water injection pipe 33, and an electric fertilizer dissolving water injection valve 34 is provided on the fertilizer dissolving water injection pipe 33. A water level sensor 35 is provided inside the fertilizer dissolving water tank 25; four fertilizer hoppers are provided on the upper part of the fertilizer dissolving water tank 25. 36, each fertilizer hopper 36 is provided with an electric fertilizer applicator 37 for filling granular fertilizer into the fertilizer-dissolving water tank 25; the fertilizer solution filter 26 includes a filter water inlet 38, a filter water outlet 39, and a filter sewage outlet 40, the inlet of the shear pump 27 is connected to the fertilizer solution outlet 30, the outlet of the shear pump 27 is connected to the filter water inlet 38, the filter sewage outlet 40 is connected to the fertilizer solution inlet 31 through a pipeline and a reflux regulating valve 41; the filter outlet 39 is connected to the fertilizer solution filling port 23 through a pipeline and the fertilizer solution filling pump 28.

[0034] The liquid fertilizer and pesticide filling device comprises a liquid fertilizer and pesticide box 42, inside of which is an aeration plate 51 connected to an aeration fan 50; the liquid fertilizer and pesticide box 42 is provided with a dissolving water inlet 43 and a liquid fertilizer and pesticide outlet 44, the dissolving water inlet 43 is connected to the secondary water outlet 22 through a pipeline and a fertilizer and pesticide box water injection valve 45, and the liquid fertilizer and pesticide outlet 44 is connected to the liquid fertilizer and pesticide inlet 32 ​​through a pipeline and an electric liquid fertilizer and pesticide valve 46, a liquid fertilizer and pesticide filter 47, a liquid fertilizer and pesticide diaphragm pump 48 and a liquid fertilizer and pesticide check valve 49 sequentially arranged on the pipeline.

[0035] The controller is electrically connected to a water level sensor, an electric fertilizer dissolving water injection valve, an electric fertilizer applicator, a shear pump, a fertilizer solution filling pump, an aeration fan, a liquid fertilizer and pesticide diaphragm pump, a first pressure sensor, a second pressure sensor, a third pressure sensor, a first-level electric drain valve, a second-level electric drain valve, a first-level screen brushing motor, a second-level screen brushing motor and a water source cleaning pump.

[0036] The working principle of the utility model is described as follows in conjunction with the accompanying drawings:

[0037] (1) Check the connection and opening status of machinery, pipelines and valves;

[0038] (2) Turn on the power, start the controller 1 to perform self-test, and put the controller 1 into working state;

[0039] (3) Setting the operating parameters and operating mode of the controller 1 according to the type of fertilizer and / or pesticide to be applied and the planned application amount.

[0040] (1) Filling the fertilizer hopper 36 with granular fertilizer according to the type of granular fertilizer;

[0041] (2) If liquid fertilizer and / or pesticide need to be applied simultaneously, a certain amount of fertilizer and / or pesticide is loaded into the liquid fertilizer and pesticide tank 42 according to the application concentration.

[0042] (1) Close the water inlet stop valve 53, open the water supply valve 57 to fill the water ring vacuum pump 54 with vacuum water, and start the water ring vacuum pump 54 to fill the centrifugal pump and pipeline with water;

[0043] (2) Open the water inlet stop valve 53, and at the same time, start the centrifugal pump and turn off the water ring vacuum pump 54, so that the centrifugal pump enters the normal water supply operation state.

[0044] (1) Start the centrifugal pump, water enters from the water source inlet pipe 6, is filtered by the primary cylindrical filter 3 and the secondary cylindrical filter 15, and flows out from the water source outlet pipe 21 into the field irrigation pipe;

[0045] (2) The controller opens the electric fertilizer dissolving water injection valve 34, and the clean water filtered by the secondary cylindrical filter 15 is added to the fertilizer dissolving water tank 25 through the fertilizer dissolving water injection pipe 33. A water level sensor 35 is arranged inside the fertilizer dissolving water tank 25. The controller controls the electric fertilizer dissolving water injection valve 34 to open and close according to the water level sensor 35, so that the water level of the fertilizer dissolving water tank 25 is maintained at a certain height.

[0046] (3) The controller starts the electric fertilizer applicator 37, and the fertilizer is evenly applied to the fertilizer dissolving water tank 25 according to the fertilizer application amount requirement;

[0047] (4) The controller starts the shear pump 27 and the fertilizer solution filling pump 28 to circulate and shear the fertilizer solution mixture in the fertilizer dissolving water tank 25. At the same time, the fertilizer solution flowing out of the filter outlet 39 of the fertilizer solution filter 26 is injected into the secondary net rear cavity of the self-cleaning filter through the fertilizer solution filling pump 28 and the fertilizer solution filling port 23. Then, the fertilizer solution is applied to the farmland along with the water flow;

[0048] (5) When the shear pump 27 is started to circulate and stir the fertilizer solution mixture in the fertilizer dissolving water tank 25, the opening of the reflux regulating valve 41 is manually adjusted according to the dissolution of the granular fertilizer, the filtering pressure of the fertilizer solution filter 26 is adjusted, and then the flow ratio between the filtered water outlet 39 and the filtered sewage outlet 40 is adjusted.

[0049] (1) Start the centrifugal pump, water enters from the water source inlet pipe 6, is filtered by the primary cylindrical filter 3 and the secondary cylindrical filter 15, and flows out from the water source outlet pipe 21 into the field irrigation pipe;

[0050] (2) Add a certain amount of liquid fertilizer and / or pesticide, such as liquid compound fertilizer, liquid trace element fertilizer, liquid bacterial fertilizer, insecticide, fungicide, etc., into the liquid fertilizer and pesticide box 42; open the fertilizer and pesticide box water injection valve 45, and the clean water filtered by the secondary cylindrical filter 15 flows out from the secondary clean water outlet 22, and a certain amount of water is added to the liquid fertilizer and pesticide box 42 through the fertilizer and pesticide box water injection valve 45 and the drug-soluble clean water inlet 43;

[0051] (3) The controller starts the aeration fan 50 to blow air into the liquid fertilizer aeration plate 51 in the liquid fertilizer and pesticide tank 42, so that the liquid fertilizer and / or pesticide in the liquid fertilizer and pesticide tank 42 is always in a uniformly dissolved state;

[0052] (4) The controller opens the electric liquid fertilizer and pesticide valve 46, starts the liquid fertilizer and pesticide diaphragm pump 48, and injects the solution in the liquid fertilizer and pesticide tank 42 into the fertilizer dissolving water tank 25 through the liquid fertilizer and pesticide inlet 32 ​​according to the set flow rate. Then, the liquid fertilizer and / or pesticide is applied to the farmland along with the granular fertilizer solution in the fertilizer dissolving water tank 25.

[0053] During the irrigation and fertilization process, the controller continuously detects the values ​​of the first pressure sensor 7, the second pressure sensor 13 and the third pressure sensor 24, calculates the pressure difference in the first filter cartridge 2 and the second filter cartridge 14, and when one of the pressure differences is greater than the set value, stops adding fertilizers and pesticides to the fertilizer solution filling port 23, and simultaneously starts the first-level brushing motor 4 and the second-level brushing motor 16 to perform brushing for 2 to 3 seconds, then simultaneously opens the first-level electric drain valve 10 and the second-level electric drain valve 20 to discharge sewage for 1 to 2 minutes, then closes the first-level brushing motor 4 and the second-level brushing motor 16, resumes adding fertilizers and pesticides to the fertilizer solution filling port 23, and enters normal water-fertilizer integrated irrigation and fertilization operations.

[0054] During the irrigation and fertilization process, the controller 1 regularly starts the water source cleaning pump 61 to transport the clean water filtered by the primary cylindrical filter 3 to the water source for cleaning the water source filter 60 .

[0055] The contents of the above specific implementation methods are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A multifunctional water-fertilizer integrated irrigation machine, which includes a controller, a water source conveying and filtering device, a solid fertilizer filling device and a liquid fertilizer and pesticide filling device; characterized in that: The water source conveying and filtering device comprises a water pump and a self-cleaning filter, wherein the self-cleaning filter is provided with a water source inlet pipe, a water source outlet pipe, a secondary clean water outlet, and a fertilizer and pesticide solution filling port; The solid fertilizer filling device comprises a fertilizer-dissolving water tank, a fertilizer solution filter, a shear pump and a fertilizer solution filling pump. The fertilizer-dissolving water tank is provided with a fertilizer-dissolving water inlet, a fertilizer solution outlet, a fertilizer solution inlet and a liquid fertilizer and pesticide inlet; the fertilizer-dissolving water inlet is connected to the secondary clean water outlet through a fertilizer-dissolving water injection pipe, an electric fertilizer-dissolving water injection valve is provided on the fertilizer-dissolving water injection pipe, and a water level sensor is provided inside the fertilizer-dissolving water tank; one or more fertilizer hoppers are arranged on the upper part of the fertilizer-dissolving water tank, and an electric fertilizer applicator for filling granular fertilizer into the fertilizer-dissolving water tank is arranged under each fertilizer hopper; the fertilizer solution filter comprises a filter water inlet, a filter water outlet and a filter sewage outlet, the shear pump inlet is connected to the fertilizer solution outlet, the shear pump outlet is connected to the filter water inlet, and the filter sewage outlet is connected to the fertilizer solution inlet through a pipeline and a reflux regulating valve; the filter water outlet is connected to the fertilizer and pesticide solution filling port through a pipeline and a fertilizer solution filling pump; The liquid fertilizer and pesticide filling device comprises a liquid fertilizer and pesticide box, which is provided with a liquid fertilizer and pesticide dissolving water inlet and a liquid fertilizer and pesticide outlet, the liquid fertilizer and pesticide dissolving water inlet is connected to the secondary clean water outlet through a pipeline and a fertilizer and pesticide box water filling valve, and the liquid fertilizer and pesticide outlet is connected to the liquid fertilizer and pesticide inlet through a pipeline and an electric liquid fertilizer and pesticide valve, a liquid fertilizer and pesticide filter, a liquid fertilizer and pesticide diaphragm pump and a liquid fertilizer and pesticide check valve sequentially arranged on the pipeline; The controller is electrically connected with a water level sensor, an electric fertilizer dissolving water injection valve, an electric fertilizer applicator, a shear pump, a fertilizer solution filling pump, and a liquid fertilizer and pesticide diaphragm pump.

2. The multifunctional water-fertilizer integrated irrigation machine according to claim 1, characterized in that: The self-cleaning filter comprises a primary filter cartridge and a secondary filter cartridge, wherein a primary cylindrical filter screen is arranged inside the primary filter cartridge, a primary net front cavity is arranged inside the primary cylindrical filter screen, a primary net rear cavity is arranged between the outside of the primary cylindrical filter screen and the inner wall of the primary filter cartridge, and a primary filter screen brush driven to rotate by a primary net brush motor is arranged inside the primary cylindrical filter screen; a secondary cylindrical filter screen is arranged inside the secondary filter cartridge, a secondary net front cavity is arranged inside the secondary cylindrical filter screen, a secondary net rear cavity is arranged between the outside of the secondary cylindrical filter screen and the inner wall of the secondary filter cartridge, and a secondary filter screen brush driven to rotate by a secondary net brush motor is arranged inside the secondary cylindrical filter screen; a water source inlet pipe connected to the primary net front cavity is arranged at the water inlet end of the primary filter cartridge, and a first pressure sensor for detecting the pressure of the primary net front cavity is arranged on the water source inlet pipe The first filter cartridge has a first-level drain cylinder connected to the first-level net front cavity at the water outlet end, the first-level drain cylinder is connected to the first-level drain pipe, and the first-level electric drain valve is provided on the first-level drain pipe; the second-level filter cartridge has a filter connecting pipe connected between the water inlet end and the peripheral wall of the first-level filter cartridge, the filter connecting pipe connects the first-level net rear cavity with the second-level net front cavity; a second pressure sensor for detecting the internal pressure of the filter connecting pipe is provided on the filter connecting pipe, the second-level filter cartridge has a second-level drain cylinder connected to the second-level net front cavity at the water outlet end, the second-level drain cylinder is connected to the second-level drain pipe, and the second-level electric drain valve is provided on the second-level drain pipe, and the peripheral wall of the second-level filter cartridge is provided with a water source outlet pipe connected to the second-level net rear cavity, a second-level clean water outlet, a fertilizer and medicine solution filling port, and a third pressure sensor for detecting the pressure of the second-level net rear cavity; The self-cleaning filter is an electric self-cleaning filter automatically controlled by a controller, and the controller is electrically connected to the first pressure sensor, the second pressure sensor, the third pressure sensor, the first electric drain valve, the second electric drain valve, the first brush motor, and the second brush motor.

3. The multifunctional water-fertilizer integrated irrigation machine according to claim 2 is characterized in that: The first-stage cylindrical filter is 20-40 mesh, and the second-stage cylindrical filter is 40-120 mesh.

4. The multifunctional water-fertilizer integrated irrigation machine according to claim 3 is characterized in that: An aeration plate connected to an aeration fan is arranged inside the liquid fertilizer and pesticide box, and a controller is electrically connected to the aeration fan.

5. The multifunctional water-fertilizer integrated irrigation machine according to claim 4 is characterized in that: The water pump of the water source conveying and filtering device is a centrifugal pump. In order to facilitate the starting of the centrifugal pump, it is also provided with an exhaust and water diversion device.

6. The multifunctional water-fertilizer integrated irrigation machine according to claim 5, characterized in that: The exhaust and water diversion device includes a water ring vacuum pump, a vacuum pump water tank and a water inlet stop valve installed on a water source inlet pipe. The water ring vacuum pump includes an air intake port, an air exhaust port and a water supply port. The water supply port is connected to the vacuum pump water tank through a water supply pipe and a water supply valve. The air intake port is connected to the water source inlet pipe between the centrifugal pump and the water inlet stop valve through an air intake pipe. The air exhaust port is connected to the vacuum pump water tank through an exhaust pipe.

7. The multifunctional water-fertilizer integrated irrigation machine according to claim 6, characterized in that: It also includes a water source filter arranged at the water source, a first-level clean water outlet connected to the first-level net rear cavity is arranged on the peripheral wall of the first-level filter cylinder, the first-level clean water outlet is connected to a water source cleaning pipe used to clean the water source filter, a water source cleaning pump is arranged on the water source cleaning pipe, and the controller is electrically connected to the water source cleaning pump.

8. The multifunctional water-fertilizer integrated irrigation machine according to claim 7, characterized in that: There are four fertilizer hoppers.

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