A liquid fertilizer precision application mechanism for a planter

Abstract

The utility model relates to a seeding machine liquid fertilizer precision application mechanism relates to agricultural machinery technical field, spray liquid head (5) is established on ditch opener (7), controller (6) is equipped with touch display screen (8), and control valve includes spray machine pipeline distributor and several two -way electromagnetic valve (9), and spray machine pipeline distributor then is connected by set backwater valve (10), pressure regulating valve (11) and several branch valve (12) sequentially constitute, the input and output of liquid fertilizer pump (1) are connected with liquid fertilizer tank (2) and the liquid inlet of filter (3) respectively, the liquid outlet of filter (3) is connected with backwater valve (10) liquid inlet, and the backwater of backwater valve (10) is connected with liquid fertilizer tank (2), and every branch valve (12) is connected with spray liquid head (5) through flowmeter (4) and two -way electromagnetic valve (9) respectively, and flowmeter (4) and two -way electromagnetic valve (9) are electrically connected with controller (6) respectively. Have the advantage that liquid fertilizer spraying amount control is accurate.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically to a liquid fertilizer application mechanism for precisely controlling the amount of fertilizer applied. Background Technology

[0002] In agricultural production, liquid fertilizers offer advantages such as high utilization rate, rapid absorption, good fertilizer effect, environmental friendliness, and reduced soil compaction, further reducing planting costs compared to solid fertilizers. The use of liquid fertilizers has gained widespread acceptance among farmers, and their proportion in agricultural production continues to increase. In particular, rising fertilizer prices have made farmers even more inclined to use liquid fertilizers for cost control. However, with the increasing prevalence and use of liquid fertilization equipment, the waste problems caused by insufficient metering and control precision in existing equipment are gradually becoming more prominent. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a liquid fertilizer application mechanism for a seeder that can precisely control the amount of fertilizer applied.

[0004] The technical solution of this utility model is: a liquid fertilizer precision application mechanism for a seeder, including a liquid fertilizer pump, a liquid fertilizer tank, a filter, a control valve, a flow meter, a spray head, a controller, and the control valve. The seeder is equipped with a furrow opener for fertilization, and the spray head is mounted on the furrow opener. The controller is equipped with a touch screen display. The control valve includes a sprayer pipeline distributor and several two-way solenoid valves. The sprayer pipeline distributor is composed of a return water valve, a pressure regulating valve, and several branch valves connected in sequence. The input and output ends of the liquid fertilizer pump are respectively connected to the inlet of the liquid fertilizer tank and the filter. The outlet of the filter is connected to the inlet of the return water valve. The return water valve is connected to the liquid fertilizer tank. The number of branch valves corresponds to the number of spray heads. Each branch valve is connected to the spray head through a flow meter and a two-way solenoid valve. The flow meter and the two-way solenoid valve are electrically connected to the controller.

[0005] The technical advantages of this invention are: precise control of liquid fertilizer application rate; the opening duration of the control valve can be precisely controlled based on the electrical signal fed back from the flow meter, allowing for more accurate control of the liquid fertilizer application rate each time; and the total amount of liquid fertilizer required can be accurately calculated based on parameters such as field size and plant density, providing a reference for pre-production liquid fertilizer preparation and avoiding insufficient or excessive fertilizer preparation, thus better controlling production costs. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the connection structure of this utility model. Detailed Implementation

[0007] like Figure 1As shown, a liquid fertilizer precision application mechanism for a seeder includes a liquid fertilizer pump 1, a liquid fertilizer tank 2, a filter 3, a control valve, a flow meter 4, a spray head 5, a controller 6, and the control valve itself. The seeder is equipped with a furrow opener 7 for fertilization, and the spray head 5 is mounted on the furrow opener 7. The controller 6 is equipped with a touch screen display 8. The control valve includes a sprayer pipeline distributor and several two-way solenoid valves 9. The sprayer pipeline distributor is composed of a return water valve 10, a pressure regulating valve 11, and several branch valves 12 connected in sequence. The sprayer pipeline distributor can be purchased directly. Commercially available products with the same structure have the following configuration: the input and output ends of the liquid fertilizer pump 1 are connected to the inlets of the liquid fertilizer tank 2 and the filter 3, respectively; the outlet of the filter 3 is connected to the inlet of the return water valve 10; and the return water valve 10 is connected to the liquid fertilizer tank 2. This valve is used to transfer the backflow generated by the pressure regulating valve and the backflow when the return water valve is closed to the liquid fertilizer tank. The number of branch valves 12 corresponds to the number of spray heads 5. Each branch valve 12 is connected to the spray head 5 via a flow meter 4 and a two-way solenoid valve 9. The flow meter 4 and the two-way solenoid valve 9 are electrically connected to the controller 6. The controller controls the opening and closing of the two-way solenoid valve based on the feedback electrical signal from the flow meter and the input data from the touch screen, thereby controlling the spray volume of the spray head.

[0008] A one-way valve 13 is provided between the two-way solenoid valve 9 and the spray head 5.

[0009] The liquid fertilizer pump 1 is a diaphragm pump.

[0010] The controller 6 is electrically connected to a speaker 14. It can be used to emit an operation tone and an alarm tone when the flow meter detects a flow interruption.

[0011] The liquid fertilizer tank 2 is equipped with a valve 15 that is connected to the liquid fertilizer pump 1.

[0012] The liquid fertilizer tank 2 is equipped with a valve 15 connected to a return water valve 10.

[0013] The number of branch valves 12 is at least two.

Claims

1. A liquid fertilizer precision application mechanism for a seeder, comprising a liquid fertilizer pump (1), a liquid fertilizer tank (2), a filter (3), a control valve, a flow meter (4), a spray head (5), a controller (6), and the control valve, wherein the seeder is equipped with a furrow opener (7) for fertilization, the spray head (5) is mounted on the furrow opener (7), and the controller (6) is equipped with a touch screen display (8), characterized in that, The control valve includes a sprayer pipeline distributor and several two-way solenoid valves (9). The sprayer pipeline distributor is composed of a return water valve (10), a pressure regulating valve (11), and several branch valves (12) connected in sequence. The input and output ends of the liquid fertilizer pump (1) are connected to the liquid fertilizer tank (2) and the inlet of the filter (3), respectively. The outlet of the filter (3) is connected to the inlet of the return water valve (10). The return water outlet of the return water valve (10) is connected to the liquid fertilizer tank (2). The number of branch valves (12) corresponds to the number of spray heads (5). Each branch valve (12) is connected to the spray head (5) through a flow meter (4) and a two-way solenoid valve (9), respectively. The flow meter (4) and the two-way solenoid valve (9) are electrically connected to the controller (6).

2. The liquid fertilizer precision application mechanism for the seeder as described in claim 1, characterized in that, A one-way valve (13) is provided between the two-way solenoid valve (9) and the spray head (5).

3. The liquid fertilizer precision application mechanism for the seeder as described in claim 1, characterized in that, The liquid fertilizer pump (1) is a diaphragm pump.

4. The liquid fertilizer precision application mechanism for the seeder as described in claim 1, characterized in that, The controller (6) is electrically connected to a speaker (14).

5. The liquid fertilizer precision application mechanism for the seeder as described in claim 1, characterized in that, The liquid fertilizer tank (2) is equipped with a valve (15) that is connected to the liquid fertilizer pump (1).

6. The liquid fertilizer precision application mechanism for a seeder as described in claim 1, characterized in that, The liquid fertilizer tank (2) is equipped with a valve (15) connected to the return water valve (10).

7. The liquid fertilizer precision application mechanism for a seeder as described in any one of claims 1 to 6, characterized in that, The number of the branch valves (12) is at least two.

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