Water and fertilizer integrated automatic fertilizer applicator

Abstract

The utility model belongs to the technical field of fertilizer applicators, and particularly relates to a water and fertilizer integrated automatic fertilizer applicator which comprises a cart, a storage battery, a stirring tank and a water and fertilizer storage tank are arranged at the top of the cart, a first motor is arranged at the top of the stirring tank, an output end of the first motor is connected with a stirring paddle, and a liquid inlet three-way pipe is connected to the top of the first motor. The top of the water and fertilizer storage tank is provided with a self-suction device, the self-suction device comprises a piston cylinder, a piston rod is inserted into the piston cylinder, the outer side of the piston cylinder is provided with a screw rod mounting bracket, the inner side of the screw rod mounting bracket is rotatably provided with a reciprocating screw rod, and one end of the piston rod is connected with a sliding block; according to the device disclosed by the invention, the monitoring of the water injection flow rate by the flow meter is matched with the control of the running speed of the self-suction device, so that the water and the fertilizer liquid can be accurately proportioned.

Description

Technical Field

[0001] This utility model belongs to the field of fertilizer applicator technology, specifically relating to an integrated water and fertilizer automatic fertilizer applicator. Background Technology

[0002] As modern agriculture develops towards precision, efficiency, and green practices, integrated water and fertilizer irrigation technology has been widely applied in various agricultural planting scenarios, including vegetables, fruit trees, and field crops. This technology mixes water and fertilizer in a specific ratio and delivers them simultaneously to the crop root zone via spraying or drip irrigation, improving fertilizer utilization, conserving water resources, and reducing errors from manual fertilization. As a core component of integrated water and fertilizer systems, mobile or portable fertilizer applicators offer advantages such as flexible deployment and convenient on-site operation, making them suitable for water and fertilizer management tasks in small to medium-sized farmlands or distributed planting areas.

[0003] Most existing integrated water and fertilizer application devices use pressure tanks for fertilizer injection or Venturi jet mixing for fertilizer mixing and delivery. However, during the use of these devices, the ratio of water to fertilizer solution is often determined by experience or by manually adjusting the amount of fertilizer injected. This makes it impossible to dynamically adjust the amount of fertilizer injected based on the real-time water intake, resulting in large fluctuations in the water-fertilizer mixing ratio and making it difficult to meet the requirements of precise fertilization for different crops. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide an integrated water and fertilizer automatic fertilizer applicator, which, through the monitoring of water injection flow rate by a flow meter and the control of the operating speed of the self-suction device, can accurately mix water and fertilizer solution.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated water and fertilizer automatic fertilizer applicator, comprising a trolley, the top of which is equipped with a battery, a mixing tank, and a water and fertilizer storage tank. The top of the mixing tank is equipped with a first motor, the output end of which is connected to a mixing paddle. The top of the first motor is connected to an inlet tee pipe, one end of which is connected to a flow meter. The top of the water and fertilizer storage tank is equipped with a self-suction device, which includes a piston cylinder. A piston rod is inserted into the inside of the piston cylinder, and a wire is installed on the outside of the piston cylinder. A piston rod mounting bracket is provided, on which a reciprocating lead screw is rotatably mounted. One end of the piston rod is connected to a slider, which is threadedly connected to the reciprocating lead screw. A servo motor is fixedly mounted on one end of the piston rod mounting bracket, and the output end of the servo motor is connected to the reciprocating lead screw. One end of the piston rod is connected to a piston. The output and input ends of the piston cylinder are respectively connected to a first one-way valve and a second one-way valve. A suction pipe is connected to the bottom of the second one-way valve. An output pump is connected to one side of the bottom of the mixing tank. An adjustable spray device is mounted on the top of the trolley.

[0006] The beneficial effects of this utility model are as follows: When starting work, first connect the water pipe connector to the water supply pipe, open the water supply valve, and start injecting water into the mixing tank. The inlet water flow rate is monitored in real time by the flow meter. Based on the detection of the inlet water flow rate, the running speed of the servo motor is controlled according to the preset water-fertilizer ratio, that is, the water-fertilizer injection speed. The servo motor drives the reciprocating screw to rotate. Through the transmission between the reciprocating screw and the slider, the slider, piston rod, and piston reciprocate within the piston cylinder. When the piston rod pulls out, the second one-way valve draws fertilizer liquid from the water-fertilizer storage tank through the suction pipe under negative pressure. When the piston rod pushes in, the second one-way valve closes, and the fertilizer is injected into the mixing tank along with the water through the first one-way valve via the inlet tee pipe. By coordinating the monitoring of the water injection flow rate by the flow meter with the control of the running speed of the self-suction device, a precise ratio between water and fertilizer liquid can be achieved.

[0007] Loosening the locking bolts allows the shaft to rotate, adjusting the spray direction of the sprinkler pipes and thus the maximum width of the spray coverage area, meeting the needs of crop planting areas of different widths.

[0008] For the control of this device:

[0009] As a further improvement to the above technical solution: a control device is provided on the push rod of the trolley.

[0010] The control device is equipped with a touch screen and has an internal processor module for controlling its operation.

[0011] As a further improvement to the above technical solution: the top of the water and fertilizer storage tank is provided with a filling port, and a sealing cap is threaded onto the top of the filling port.

[0012] When the fertilizer solution is insufficient, simply open the sealed cap to add fertilizer through the filling port.

[0013] As a further improvement to the above technical solution: one end of the flow meter is connected to a water supply valve, and one end of the water supply valve is connected to a water pipe connector.

[0014] The water supply valve is used to control the opening and closing of the water supply circuit, and the water pipe connector is used to connect to the water supply pipe.

[0015] To monitor the liquid level in the water and fertilizer storage tank:

[0016] As a further improvement to the above technical solution: a liquid level sensor is installed inside the water and fertilizer storage tank.

[0017] The beneficial effects of this improvement are: the liquid level sensor monitors the liquid level in the water and fertilizer storage tank and feeds it back to the control device so that it can be added in a timely manner.

[0018] To meet the needs of crop planting areas of different widths:

[0019] As a further improvement to the above technical solution: the adjustable spray device includes a rotating shaft mounting base, a rotating shaft is rotatably mounted on the inner side of the rotating shaft mounting base, a bracket is connected to the top of the rotating shaft, a spray pipe is installed at one end of the bracket, and a screw hole is provided between the inner and outer sides of the rotating shaft mounting base and a locking bolt is threaded thereon.

[0020] The beneficial effects of this improvement are: loosening the locking bolts allows the rotating shaft to be rotated, adjusting the spraying direction of the spray pipe, thus allowing the maximum width of the spray coverage area to be adjusted to meet the needs of crop planting areas of different widths.

[0021] For the liquid transfer between the first one-way valve and the inlet tee, and between the spray pipe and the outlet pump:

[0022] As a further improvement to the above technical solution: flexible hoses are connected between the first one-way valve and the inlet tee pipe, and between the spray pipe and the output pump.

[0023] The beneficial effects of this improvement are: the hose is used for liquid transport between the first one-way valve and the inlet tee, and between the spray pipe and the output pump.

[0024] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0026] Figure 2 This is a side sectional view of the present invention;

[0027] Figure 3 This is a cross-sectional schematic diagram of the self-suction device in this utility model;

[0028] Figure 4 This is a schematic diagram of the installation of the spray pipe in this utility model;

[0029] Figure 5 This is an enlarged structural diagram of part A of this utility model;

[0030] In the diagram: 1. Trolley; 2. Control device; 3. Battery; 4. Mixing tank; 5. Water and fertilizer storage tank; 6. First motor; 7. Agitator; 8. Inlet tee; 9. Flow meter; 10. Water supply valve; 11. Water pipe connector; 12. Self-suction device; 13. Piston cylinder; 14. Piston rod; 15. Screw mounting bracket; 16. Reciprocating screw; 17. Slider; 18. Servo motor; 19. Piston; 20. First check valve; 21. Second check valve; 22. Suction pipe; 23. Liquid level sensor; 24. Output pump; 25. Shaft mounting base; 26. Shaft; 27. Bracket; 28. Spray pipe; 29. ​​Locking bolt. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0032] like Figure 1-5 As shown, an integrated water and fertilizer automatic fertilizer applicator includes a trolley 1. The top of the trolley 1 is equipped with a battery 3, a mixing tank 4, and a water and fertilizer storage tank 5. The top of the mixing tank 4 is equipped with a first motor 6, the output end of which is connected to a stirring paddle 7. A liquid inlet tee pipe 8 is connected to the top of the first motor 6, and one end of the liquid inlet tee pipe 8 is connected to a flow meter 9. A self-suction device 12 is installed on the top of the water and fertilizer storage tank 5. The self-suction device 12 includes a piston cylinder 13, with a piston rod 14 inserted inside the piston cylinder 13. A lead screw mounting bracket 15 is installed on the outside of the piston cylinder 13. A reciprocating lead screw 16 is rotatably mounted on the inner side of the piston rod 14. A slider 17 is connected to one end of the piston rod 14. The slider 17 is threadedly connected to the reciprocating lead screw 16. A servo motor 18 is fixedly mounted on one end of the lead screw mounting bracket 15. The output end of the servo motor 18 is connected to the reciprocating lead screw 16. One end of the piston rod 14 is connected to the piston 19. A first one-way valve 20 and a second one-way valve 21 are respectively connected to the output end and the input end of the piston cylinder 13. A suction pipe 22 is connected to the bottom of the second one-way valve 21. An output pump 24 is connected to one side of the bottom of the mixing tank 4. An adjustable spray device is installed on the top of the trolley 1.

[0033] At the start of operation, first connect the water pipe connector 11 to the water supply pipe, open the water supply valve 10, and begin injecting water into the mixing tank 4. The flow rate is monitored in real time by the flow meter 9. Based on the detected flow rate, the operating speed of the servo motor 18 is controlled according to a preset water-to-fertilizer ratio, such as 100:1, which is the water-to-fertilizer injection speed. The servo motor 18 drives the reciprocating screw 16 to rotate. Through the transmission between the reciprocating screw 16 and the slider 17, the slider 17, piston rod 14, and piston 19 are driven to rotate. The piston rod 14 moves back and forth inside the cylinder 13. When the piston rod 14 is pulled out, the second one-way valve 21 draws fertilizer liquid from the water-fertilizer storage tank 5 under negative pressure through the suction pipe 22. When the piston rod 14 pushes the liquid in, the second one-way valve 21 closes and the fertilizer is injected into the mixing tank 4 along with the water through the first one-way valve 20 via the liquid inlet three-way pipe 8. By monitoring the water injection flow rate with the flow meter 9 and coordinating with the operation speed control of the self-suction device 12, the water and fertilizer liquid can be accurately mixed.

[0034] Loosening the locking bolt 29 allows the rotating shaft 26 to be rotated, adjusting the spray direction of the spray pipe 28. This allows the maximum width of the spray coverage area to be adjusted to meet the needs of crop planting areas of different widths.

[0035] The trolley 1 is equipped with a control device 2 on its push rod.

[0036] The control device 2 is equipped with a touch screen and has a processor module inside for controlling the operation of the device.

[0037] The top of the water and fertilizer storage tank 5 is provided with a filling port, and a sealing cap is threaded onto the top of the filling port.

[0038] When the fertilizer solution is insufficient, simply open the sealed cap to add fertilizer through the filling port.

[0039] One end of the flow meter 9 is connected to a water supply valve 10, and one end of the water supply valve 10 is connected to a water pipe connector 11.

[0040] The water supply valve 10 is used to control the opening and closing of the water supply circuit, and the water pipe connector 11 is used to connect to the water supply pipe.

[0041] The liquid level sensor 23 is installed inside the water and fertilizer storage tank 5.

[0042] The liquid level sensor 23 monitors the liquid level in the water and fertilizer storage tank and sends the feedback to the control device 2 so that it can be added in a timely manner.

[0043] The adjustable spray device includes a rotating shaft mounting base 25, on the inner side of the rotating shaft mounting base 25 a rotating shaft 26 is rotatably mounted, a bracket 27 is connected to the top of the rotating shaft 26, a spray pipe 28 is mounted on one end of the bracket 27, and a screw hole is provided between the inner and outer sides of the rotating shaft mounting base 25 and a locking bolt 29 is threadedly installed thereon.

[0044] Loosening the locking bolt 29 allows the rotating shaft 26 to be rotated, adjusting the spray direction of the spray pipe 28. This allows the maximum width of the spray coverage area to be adjusted to meet the needs of crop planting areas of different widths.

[0045] Flexible hoses are connected between the first one-way valve 20 and the inlet tee pipe 8, and between the spray pipe 28 and the output pump 24.

[0046] The hose is used for liquid transport between the first one-way valve 20 and the inlet tee 8, and between the spray pipe 28 and the output pump 24.

[0047] The working principle and usage process of this utility model: The operator starts and controls the equipment through the control device 2. The storage battery 3 supplies power to the system. When starting work, first connect the water pipe connector 11 to the water supply pipe, open the water supply valve 10, and start injecting water into the mixing tank 4. The flow meter 9 monitors the water inflow in real time. By detecting the water inflow, the operating speed of the servo motor 18, i.e. the water and fertilizer injection speed, is controlled according to the preset water-fertilizer ratio. The servo motor 18 drives the reciprocating screw 16 to rotate. Through the transmission between the reciprocating screw 16 and the slider 17, the slider 17, piston rod 14, and piston 19 are driven to reciprocate within the piston cylinder 13. When the piston rod 14 pulls out, the second one-way valve 21, under negative pressure, draws fertilizer liquid from the water and fertilizer storage tank 5 through the suction pipe 22. During the injection process, the second one-way valve 21 closes, and the fertilizer is injected into the mixing tank 4 along with water through the first one-way valve 20 via the inlet tee pipe 8. The flow meter 9 monitors the water injection flow rate, and the self-suction device 12 controls the operating speed to achieve a precise ratio between water and fertilizer solution. Simultaneously, the first motor 6 drives the stirring paddle 7 to rotate and perform turbulent mixing of the mixture. The liquid level sensor 23 monitors the liquid level in the water and fertilizer storage tank and feeds it back to the control device 2 for timely replenishment. When the fertilizer solution is insufficient, the sealing cap can be opened to replenish fertilizer through the filling port. After mixing, the device can be started to irrigate. Loosening the locking bolt 29 allows the rotating shaft 26 to be rotated, adjusting the spray direction of the spray pipe 28 so that the maximum width of the spray coverage can be adjusted to meet the needs of crop planting areas of different widths.

[0048] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.

[0049] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. An automatic fertigation device integrating water and fertilizer, characterized in that: The system includes a trolley (1), a battery (3), a mixing tank (4), and a water and fertilizer storage tank (5) on the top of the trolley (1). The mixing tank (4) has a first motor (6) on the top, the output end of which is connected to a stirring paddle (7). The top of the first motor (6) is connected to an inlet tee pipe (8), one end of which is connected to a flow meter (9). The top of the water and fertilizer storage tank (5) is equipped with a self-suction device (12), which includes a piston cylinder (13). A piston rod (14) is inserted and installed inside the piston cylinder (13). A screw rod mounting bracket (15) is installed on the outside of the piston cylinder (13). The inside of the screw rod mounting bracket (15) is... A reciprocating screw (16) is rotatably mounted. One end of the piston rod (14) is connected to a slider (17). The slider (17) is threadedly connected to the reciprocating screw (16). One end of the screw mounting bracket (15) is fixedly equipped with a servo motor (18). The output end of the servo motor (18) is connected to the reciprocating screw (16). One end of the piston rod (14) is connected to the piston (19). The output end and input end of the piston cylinder (13) are respectively connected to a first one-way valve (20) and a second one-way valve (21). The bottom of the second one-way valve (21) is connected to a suction pipe (22). One side of the bottom of the mixing tank (4) is connected to an output pump (24). An adjustable spraying device is installed on the top of the trolley (1).

2. The automatic fertigation device for integrated water and fertilizer application according to claim 1, characterized in that: The trolley (1) is equipped with a control device (2) on its trolley rod.

3. The automatic fertigation device for integrated water and fertilizer application according to claim 1, characterized in that: The top of the water and fertilizer storage tank (5) is provided with a filling port, and a sealing cap is threaded onto the top of the filling port.

4. The automatic fertigation device for integrated water and fertilizer application according to claim 1, characterized in that: One end of the flow meter (9) is connected to a water supply valve (10), and one end of the water supply valve (10) is connected to a water pipe connector (11).

5. The automatic fertigation device for integrated water and fertilizer application according to claim 1, characterized in that: The water and fertilizer storage tank (5) is equipped with a liquid level sensor (23).

6. The automatic fertigation device for integrated water and fertilizer application according to claim 1, characterized in that: The adjustable spray device includes a rotating shaft mounting base (25), on which a rotating shaft (26) is rotatably mounted. A bracket (27) is connected to the top of the rotating shaft (26), and a spray pipe (28) is installed at one end of the bracket (27). A screw hole is provided between the inner and outer sides of the rotating shaft mounting base (25), and a locking bolt (29) is threadedly installed.

7. The automatic fertigation device for integrated water and fertilizer application according to claim 6, characterized in that: Flexible hoses are connected between the first one-way valve (20) and the inlet three-way pipe (8), and between the spray pipe (28) and the output pump (24).

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