Fertilizer applicator with back pressure exhaust backflow system

Abstract

The invention relates to the field of agricultural fertilization equipment, in particular to a fertilizer applicator with a back pressure exhaust backflow system. Comprising a bottom plate, a power supply manager, a fertilization pump and a self-exhaust fertilization assembly, the power supply manager and the fertilization pump are arranged on the bottom plate, the power supply manager is connected with the fertilization pump, the self-exhaust fertilization assembly comprises a fertilizer suction pipe, a fertilizer outlet pipe and a return pipe, the fertilizer suction pipe and the fertilizer outlet pipe are connected to an inlet and an outlet of the fertilization pump respectively, and the return pipe is connected with the fertilizer suction pipe. The return pipe is connected between the fertilizer suction pipe and the fertilizer outlet pipe, and a valve is arranged on the return pipe. The backflow pipe and the valve are arranged between the fertilizer suction pipe and the fertilizer outlet pipe, so that the pumping problem caused by air entering the fertilizer suction pipe is effectively solved, the air in the fertilizer suction pipe is ejected out by utilizing the water pressure difference between the fertilizer outlet pipe and the fertilizer suction pipe, and the normal operation of the fertilization pump is ensured; the transparent observation pipe and scales arranged on the fertilizer suction pipe facilitate checking of real-time flow and air, and the fertilizer suction quick connector and the fertilizer outlet quick connector facilitate pipeline connection.

Description

Technical Field

[0001] The present invention relates to the field of agricultural fertilization equipment, and particularly to a fertilizer applicator with a backpressure exhaust reflux system. Background Art

[0002] In the field of modern agricultural irrigation and fertilization, drip irrigation systems have been widely used, but traditional fertilizer applicators have many problems during operation. On the one hand, when air accidentally enters the fertilizer suction pipe, the air is likely to stay in the fertilizer pump, resulting in a decrease in pumping efficiency or even inability to work properly, seriously affecting the continuity and accuracy of the fertilization operation. In addition, the power supply system of existing fertilizer applicators is difficult to adapt to voltage fluctuations in different scenarios. When the input voltage is unstable, power supply abnormalities are likely to occur, reducing the reliability and service life of the equipment. These problems restrict the efficient application of fertilizer applicators. Summary of the Invention

[0003] The present invention provides a fertilizer applicator with a backpressure exhaust reflux system, and the technical problem to be solved is as follows: This solution effectively solves the problems in the prior art that when air accidentally enters the fertilizer suction pipe, the air is likely to stay in the fertilizer pump, resulting in a decrease in pumping efficiency or even inability to work properly, seriously affecting the continuity and accuracy of the fertilization operation, and that the power supply system is difficult to adapt to voltage fluctuations in different scenarios.

[0004] To achieve the above invention objective, the fertilizer applicator with a backpressure exhaust reflux system of the present invention includes a bottom plate, a power supply manager, a fertilizer pump, and a self-exhausting fertilizer component. The power supply manager and the fertilizer pump are arranged on the bottom plate, the power supply manager is connected to the fertilizer pump, the self-exhausting fertilizer component includes a fertilizer suction pipe, a fertilizer outlet pipe, and a reflux pipe. The fertilizer suction pipe and the fertilizer outlet pipe are respectively connected to the inlet and outlet of the fertilizer pump, the reflux pipe is connected between the fertilizer suction pipe and the fertilizer outlet pipe, and a valve is provided on the reflux pipe.

[0005] When the fertilizer pump absorbs fertilizer through the fertilizer suction pipe and discharges it from the fertilizer outlet pipe, and the fertilizer outlet pipe is connected to the drip irrigation pipeline, when air enters the fertilizer suction pipe, it will cause the air to stay and wander in the fertilizer pump, thereby affecting the pumping effect. By arranging a reflux pipe between the fertilizer suction pipe and the fertilizer outlet pipe, when the valve is opened, the fertilizer suction pipe and the fertilizer outlet pipe are connected. Since the water pressure in the fertilizer outlet pipe is greater than the water pressure in the fertilizer suction pipe, the fertilizer in the fertilizer outlet pipe will enter the fertilizer suction pipe through the reflux pipe, pushing out the air inside the fertilizer suction pipe, thereby making the fertilizer suction pipe filled with liquid fertilizer and facilitating the normal operation of the fertilizer pump.

[0006] Further, an observation pipe is provided on the fertilizer suction pipe. The observation pipe is a transparent pipe for viewing the real-time flow rate and air, and a scale is provided on the observation pipe.

[0007] Further, a fertilizer suction quick connector is provided on the fertilizer suction pipe, and a fertilizer outlet quick connector is provided on the fertilizer outlet pipe.

[0008] Further, the power supply manager includes a power conversion circuit, and the power conversion circuit includes an AC-to-DC circuit and a DC bucking circuit. The AC-to-DC circuit converts 220V AC power into DC power through a rectifier bridge; the DC bucking circuit uses a DC bucking chip to step down the 24 - 72V DC power.

[0009] Further, the power supply manager is provided with a power management chip, which can automatically detect the range of the input voltage and make corresponding adjustments and conversions according to different input voltages to provide a stable output voltage for the fertilizer pump.

[0010] Further, the power supply manager is provided with a voltage detection and feedback circuit to monitor the states of the input voltage and the output voltage in real time. When the input voltage changes, the voltage detection and feedback circuit will feed back the signal to the power management chip or the relevant control circuit, and the power management chip adjusts the working mode and parameters according to the feedback signal to keep the output voltage within the normal working range of the fertilizer pump, realizing the adaptability to wide voltage input and stable power supply.

[0011] Further, a carrying handle is provided on the bottom plate.

[0012] The beneficial effects of the present invention are as follows: The fertilizer applicator of the present invention has a backpressure exhaust reflux system. By setting a reflux pipe and a valve between the fertilizer suction pipe and the fertilizer discharge pipe, it effectively solves the pumping problem caused by air entering the fertilizer suction pipe. Utilizing the water pressure difference between the fertilizer discharge pipe and the fertilizer suction pipe, the air in the fertilizer suction pipe is ejected to ensure the normal operation of the fertilizer pump; the transparent observation pipe and scale provided on the fertilizer suction pipe are convenient for viewing the real-time flow rate and air; the fertilizer suction quick connector and the fertilizer discharge quick connector facilitate the connection of the pipeline; the power supply manager uses a power conversion circuit to achieve AC-DC conversion and DC bucking, and is equipped with a power management chip and a voltage detection and feedback circuit, which can automatically detect the input voltage range, adjust the conversion and output according to the voltage change, realize the adaptability to wide voltage input and stable power supply, and improve the practicability, convenience and working stability of the fertilizer applicator with a backpressure exhaust reflux system. Description of the Drawings

[0013] Figure 1 is a three-dimensional view of the overall structure of the present invention;

[0014] Figure 2 is a front view of the overall structure of the present invention;

[0015] Figure 3 is a top view of the front view of the overall structure of the present invention;

[0016] List of Reference Numerals:

[0017] 1. Bottom plate; 2. Power manager; 3. Fertilizer pump; 4. Self-exhausting fertilizer component; 5. Fertilizer suction pipe; 6. Fertilizer discharge pipe; 7. Return pipe; 8. Valve; 9. Observation pipe; 10. Scale; 11. Fertilizer suction quick connector; 12. Fertilizer discharge quick connector; 13. Portable handle. Detailed implementation manners

[0018] The following will further illustrate the detailed implementation manners of the present invention with reference to the accompanying drawings. Among them, the same components are denoted by the same reference numerals.

[0019] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0020] In order to make the content of the present invention easier to be clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] The fertilizer applicator of the present invention having a backpressure exhaust and reflux system includes a bottom plate 1, a power manager 2, a fertilizer pump 3 and a self-exhausting fertilizer component 4. The power manager 2 and the fertilizer pump 3 are provided on the bottom plate 1. The power manager 2 and the fertilizer pump 3 are connected. The self-exhausting fertilizer component 4 includes a fertilizer suction pipe 5, a fertilizer discharge pipe 6 and a return pipe 7. The fertilizer suction pipe 5 and the fertilizer discharge pipe 6 are respectively connected to the inlet and outlet of the fertilizer pump 3. The return pipe 7 is connected between the fertilizer suction pipe 5 and the fertilizer discharge pipe 6. A valve 8 is provided on the return pipe 7.

[0022] When the fertilizer pump 3 absorbs fertilizer through the fertilizer suction pipe 5 and discharges it from the fertilizer discharge pipe 6, and the fertilizer discharge pipe 6 is connected to a drip irrigation pipeline. When air enters the fertilizer suction pipe 5, it will cause the air to stay and linger in the fertilizer pump 3, thereby affecting the pumping effect. By providing a return pipe 7 between the fertilizer suction pipe 5 and the fertilizer discharge pipe 6, when the valve 8 is opened, the fertilizer suction pipe 5 and the fertilizer discharge pipe 6 are communicated. Since the water pressure in the fertilizer discharge pipe 6 is greater than the water pressure in the fertilizer suction pipe 5, the fertilizer in the fertilizer discharge pipe 6 will enter the fertilizer suction pipe 5 through the return pipe 7, pushing out the air inside the fertilizer suction pipe 5, so that the fertilizer suction pipe 5 is filled with liquid fertilizer, which is convenient for the normal operation of the fertilizer pump 3.

[0023] Among them, an observation pipe 9 is provided on the fertilizer suction pipe 5. The observation pipe 9 is a transparent pipe for viewing the real-time flow rate and air, and a scale 10 is provided on the observation pipe 9.

[0024] A fertilizer suction quick connector 11 is provided on the fertilizer suction pipe 5, and a fertilizer discharge quick connector 12 is provided on the fertilizer discharge pipe 6.

[0025] The power manager 2 includes a power conversion circuit, and the power conversion circuit includes an AC-DC conversion circuit and a DC bucking circuit. The AC-DC conversion circuit converts 220V AC power into DC power through a rectifier bridge; the DC bucking circuit uses a DC bucking chip to step down the 24 - 72V DC power.

[0026] The power manager 2 is provided with a power management chip, which can automatically detect the range of the input voltage and make corresponding adjustments and conversions according to different input voltages to provide a stable output voltage to the fertilizer pump 3.

[0027] The power manager 2 is provided with a voltage detection and feedback circuit to monitor the status of the input voltage and the output voltage in real time. When the input voltage changes, the voltage detection and feedback circuit will feed back the signal to the power management chip or the relevant control circuit. The power management chip adjusts the working mode and parameters according to the feedback signal to keep the output voltage within the normal working range of the fertilizer pump 3, achieving the adaptation to wide voltage input and stable power supply.

[0028] A carrying handle 13 is provided on the bottom plate 1.

[0029] During specific use, first place the bottom plate 1 of the fertilizer applicator at a suitable working position, connect the fertilizer suction pipe 5 to the fertilizer storage container through the fertilizer suction quick connector 11, and connect the fertilizer discharge quick connector 12 to the drip irrigation pipeline; connect the power supply and start the fertilizer pump 3. The fertilizer is pumped through the fertilizer suction pipe 5 to the fertilizer discharge pipe 6 and output to the drip irrigation pipeline. During the operation process, the fertilizer flow rate and the air entry situation can be viewed in real time through the transparent observation pipe 9 and the scale 10 on the fertilizer suction pipe 5; if it is found that air enters the fertilizer suction pipe 5 and affects the pumping, immediately open the valve 8 of the return pipe 7, and utilize the water pressure difference between the fertilizer discharge pipe 6 and the fertilizer suction pipe 5 to make the fertilizer flow into the fertilizer suction pipe 5 through the return pipe 7 to discharge the air. After the observation pipe 9 shows that the fertilizer suction pipe 5 is filled with liquid fertilizer, close the valve 8 to continuously ensure the stable operation of the fertilizer pump 3.

[0030] The above is only a preferred embodiment of the present invention patent, and it is not intended to limit the present invention patent. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention patent shall be included within the protection scope of the present invention patent.

Claims

1. A fertilizer spreader with a back-pressure exhaust and reflux system, comprising a base plate (1), a power manager (2), a fertilizer pump (3) and a self-exhaust fertilizer component (4), wherein the power manager (2) and the fertilizer pump (3) are arranged on the base plate (1), the power manager (2) and the fertilizer pump (3) are connected, the self-exhaust fertilizer component (4) comprises a fertilizer suction pipe (5), a fertilizer discharge pipe (6) and a reflux pipe (7), the fertilizer suction pipe (5) and the fertilizer discharge pipe (6) are respectively connected to the inlet and outlet of the fertilizer pump (3), the reflux pipe (7) is connected between the fertilizer suction pipe (5) and the fertilizer discharge pipe (6), and a valve (8) is provided on the reflux pipe (7).

2. The fertilizer spreader with a back-pressure exhaust reflux system according to claim 1, characterized in that: An observation tube (9) is arranged on the fertilizer suction tube (5); the observation tube (9) is a transparent tube used for viewing real-time flow and air; and a scale (10) is arranged on the observation tube (9).

3. The fertilizer spreader with a back-pressure exhaust reflux system according to claim 1, characterized in that: The fertilizer suction pipe (5) is provided with a fertilizer suction quick connector (11), and the fertilizer discharge pipe (6) is provided with a fertilizer discharge quick connector (12).

4. The fertilizer spreader with a back-pressure exhaust reflux system according to claim 1, characterized in that: The power manager (2) comprises a power conversion circuit, which comprises an AC-DC circuit and a DC step-down circuit. The AC-DC circuit converts AC power into DC power via a rectifier bridge; the DC step-down circuit uses a DC step-down chip to step down the DC power.

5. The fertilizer spreader with a back-pressure exhaust reflux system according to claim 4, characterized in that: The power manager (2) is provided with a power management chip.

6. The fertilizer spreader with a back-pressure exhaust reflux system according to claim 5, characterized in that: The power manager (2) is provided with a voltage detection and feedback circuit to monitor the states of input voltage and output voltage in real time.

7. The fertilizer spreader with a back-pressure exhaust reflux system according to claim 1, characterized in that: A carrying rack (13) is provided on the bottom plate (1).

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