Agricultural quantitative fertilizer application device

By using a geared motor to drive a turntable that drives a connecting rod to push and pull a piston, combined with a liquid inlet check valve and liquid inlet pipe, the problem of inflexible spraying volume in existing technologies is solved, realizing precise spraying and position movement of the agronomic quantitative fertilization device, thus improving fertilization efficiency.

CN224402213UActive Publication Date: 2026-06-26任磊
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
任磊
Filing Date
2025-07-21
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The piston stroke of the plunger nozzle in existing agronomic quantitative fertilization devices is inconvenient to adjust, resulting in inflexible spraying volume and inability to make precise adjustments as needed.

Method used

The rotary table is driven by a geared motor, which drives the connecting rod to push and pull the piston through the connecting shaft. Combined with the liquid inlet check valve and liquid inlet pipe, the fertilizer is sprayed in a quantitative manner. The spray volume can be adjusted by adjusting the position of the connecting shaft, and the position can be moved by using casters and push handle.

Benefits of technology

It enables flexible adjustment of spray volume and flexible movement of position, ensuring that the spray volume is equal each time, thus improving the accuracy and efficiency of fertilization.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224402213U_ABST
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Abstract

The utility model relates to the technical field of agronomic fertilization, especially an agronomic quantitative fertilization device. The utility model has the advantages of: through the rotation of the reduction motor driving turntable, can pass through the connecting axle drive two connecting rods left and right reciprocating push and pull, and then reciprocating push and pull two push pistons, when the push piston is pulled, through the liquid inlet check valve and liquid inlet pipe and the fertilizer in the storage tank inside are sucked into the inside of fertilization spray cylinder, then with push piston is pushed and sprays out the water and fertilizer, through the rotation of the turntable realizes the continuous pull and spray, and the sliding stroke of the push piston in the inner wall of the fertilization spray cylinder is same, makes the spray amount equal each time, realizes quantitative spraying, through loosening the lock nut, can along the guiding strip hole sliding connecting axle's position, change the distance of connecting axle to the distance of the reduction motor output, and then change the stroke of driving connecting rod, realize the sliding stroke of push piston, realize the adjustment of single stroke liquid pumping capacity, realize the flexible adjustment of spraying capacity.
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Description

Technical Field

[0001] This utility model relates to the field of agronomic fertilization technology, and in particular to an agronomic quantitative fertilization device. Background Technology

[0002] Agronomic quantitative fertilization devices are agricultural machinery specifically designed for precise control of fertilizer application. Their purpose is to improve fertilization efficiency, reduce fertilizer waste, and ensure crops receive adequate nutrients. They can intelligently adjust based on factors such as crop requirements, soil nutrient content, and crop growth stage to achieve optimal fertilization results.

[0003] Current agronomic quantitative fertilization devices spray plants quantitatively using plunger nozzles. However, the piston stroke of the plunger nozzle is not easily adjustable, so the spray volume for each stroke cannot be adjusted as needed, resulting in poor adaptability and an inability to flexibly adjust the spray volume as required. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an agronomic quantitative fertilization device that effectively solves the deficiencies of the prior art.

[0005] To achieve the above objectives, one embodiment of this utility model provides an agronomic quantitative fertilization device, including a platform. A support frame is fixedly connected to the center of the top surface of the platform, and a storage tank is fixedly connected to the center of the top surface of the support frame. Fertilizer spray nozzles are fixedly connected to the centers of both sides of the support frame. Push pistons are slidably connected to the inner walls of both fertilizer spray nozzles. One-way valves are fixedly connected to the top of one side of the spraying end of each of the two fertilizer spray nozzles. The one-way valves open unidirectionally into the fertilizer spray nozzles. An inlet pipe is fixedly connected to the injection end of the one-way valve. Both inlet pipes are fixedly connected to and communicate with the bottom of the inner wall of the storage tank. A support ear is fixedly connected to the center of one side of the top surface of the platform. A rotating shaft is rotatably connected to the center of the top of the support ear. A speed reducer is fixedly connected to one side of the top center of the inner wall of the support frame. The motor has two turntables of the same size fixedly connected to its output end and one end of its shaft. Each turntable has a guide strip-shaped through hole on one side. A connecting shaft is slidably connected to the inner walls of both guide strip-shaped through holes. A guide slider is fixedly connected to one end of the connecting shaft. A locking nut is threaded onto the side of the connecting shaft away from the guide slider. A guide flange plate is fixedly connected to one side of the turntable at the output end of the motor. Two guide flange plates are located on either side of the guide strip-shaped through holes. The guide slider is slidably connected to the two guide flange plates. Connecting ears are fixedly connected to the center of one side of each of the two pushing pistons facing each other. A connecting rod is rotatably connected to one side of each connecting ear. The ends of the two connecting rods away from the connecting shaft are rotatably connected to the connecting shaft. The shaft is coaxially arranged with the output end of the motor.

[0006] Preferably, all four corners of the bottom surface of the vehicle platform are fixedly connected to casters, a push handle is fixedly connected to one edge of the top surface of the vehicle platform, and a battery is fixedly connected to one edge of the top surface of the vehicle platform.

[0007] The technical effect achieved by adopting the above solution is that the spraying position can be moved flexibly by means of casters and push handle.

[0008] Preferably, in any of the above embodiments, a support plate is fixedly connected to the center of the top surface of the storage tank, a drive motor is fixedly connected to the center of the top surface of the support plate, a stirring rod is fixedly connected to the output end of the drive motor, and the stirring rod is located inside the storage tank.

[0009] The technical effect achieved by adopting the above solution is that the uniformity of fertilizer dissolution can be improved by driving the stirring rod to stir the fertilizer inside the storage tank by the drive motor.

[0010] Preferably, in any of the above embodiments, an anti-slip layer is fixedly connected to the outer surface of the turntable at one end of the rotating shaft, the length of the connecting shaft is greater than the distance between the two turntables, and the length of the guide strip through hole is adapted to the radius of the turntable.

[0011] The technical effect achieved by adopting the above solution is that the guiding sliding adjustment range of the connecting shaft can be matched with the radius length of the turntable, maximizing the adjustment range.

[0012] Preferably, in any of the above embodiments, the output terminal of the storage battery is electrically connected to the power input terminal of the drive motor and the geared motor, the diameter of the turntable is adapted to the length of the fertilizer spray nozzle, and a dispersion nozzle is fixedly connected to the output terminal of the fertilizer spray nozzle.

[0013] The technical effect achieved by adopting the above scheme is that the maximum sliding stroke of the piston driven by the rotation of the turntable can be matched with the length of the fertilizer spraying nozzle.

[0014] This utility model has the following advantages:

[0015] 1. This agronomic quantitative fertilization device uses a geared motor to drive a turntable to rotate. A connecting shaft drives two connecting rods to push and pull back and forth, which in turn pushes and pulls two pistons. When the pistons are pulled, fertilizer from the storage tank is drawn into the fertilization spray nozzle through the liquid inlet check valve and inlet pipe. Then, as the pistons are pushed, the fertilizer is sprayed out, achieving spray fertilization. The turntable rotation enables continuous spraying, and the pistons slide the same distance along the inner wall of the fertilization spray nozzle, ensuring a consistent spray volume each time, thus achieving quantitative spraying.

[0016] 2. This agronomic quantitative fertilization device allows the position of the connecting shaft to slide along the guide strip through hole by loosening the locking nut. This changes the distance between the connecting shaft and the rotating shaft and the output end of the reduction motor, thereby changing the stroke of the driving connecting rod and thus realizing the sliding stroke of the piston. This allows for the adjustment of the liquid extraction volume per stroke and flexible adjustment of the spraying volume. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a front view structural diagram of the present utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0020] In the diagram: 1-vehicle plate, 2-support frame, 3-fertilizer spray nozzle, 4-storage tank, 5-liquid inlet check valve, 6-liquid inlet pipe, 7-support plate, 8-drive motor, 9-stirring rod, 10-battery, 11-push handle, 12-caster wheel, 13-turntable, 14-connecting rod, 15-guide strip through hole, 16-guide flange plate, 17-guide slider, 18-gear motor, 19-support ear, 20-rotating shaft, 21-connecting shaft, 22-locking nut, 23-push piston, 24-connecting ear. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0022] like Figures 1 to 3As shown, an agronomic quantitative fertilization device includes a platform 1. A support frame 2 is fixedly connected to the center of the top surface of the platform 1. A storage tank 4 is fixedly connected to the center of the top surface of the support frame 2. Fertilizer spray nozzles 3 are fixedly connected to the centers of both sides of the support frame 2. Push pistons 23 are slidably connected to the inner walls of both fertilizer spray nozzles 3. One-way liquid inlet valves 5 are fixedly connected to the top of one side of the spraying end of the two fertilizer spray nozzles 3. The one-way liquid inlet valves 5 open one-way into the fertilizer spray nozzles 3. Inlet pipes 6 are fixedly connected to the injection end of the one-way liquid inlet valves 5. Both inlet pipes 6 are fixedly connected to and communicate with the bottom of the inner wall of the storage tank 4. A support ear 19 is fixedly connected to the middle of one side of the top surface of the platform 1. A rotating shaft 20 is rotatably connected to the center of the top of the support ear 19. A reduction motor 18 is fixedly connected to one side of the top center of the inner wall of the support frame 2. The output end of the reduction motor 18 and one end of the rotating shaft 20 are both fixedly connected to the support ear 19. Two turntables 13 of the same size are fixedly connected. Each turntable 13 has a guide strip-shaped through hole 15 on one side. The inner walls of the two guide strip-shaped through holes 15 are slidably connected to a connecting shaft 21. One end of the connecting shaft 21 is fixedly connected to a guide slider 17. The side of the connecting shaft 21 away from the guide slider 17 is threadedly connected to a locking nut 22. One side of the turntable 13 at the output end of the geared motor 18 is fixedly connected to a guide flange plate 16. The two guide flange plates 16 are located on both sides of the guide strip-shaped through hole 15. The guide slider 17 is slidably connected to the two guide flange plates 16. Two push pistons 23 are fixedly connected to the center of one side facing each other. One side of each of the two connecting ears 24 is rotatably connected to a connecting rod 14. The ends of the two connecting rods 14 away from the connecting shaft 21 are rotatably connected to the connecting shaft 21. The rotating shaft 20 is coaxially arranged with the output end of the geared motor 18.

[0023] As an optional technical solution of this utility model, universal wheels 12 are fixedly connected to the four corners of the bottom surface of the vehicle plate 1, a push handle 11 is fixedly connected to one edge of the top surface of the vehicle plate 1, and a storage battery 10 is fixedly connected to one edge of the top surface of the vehicle plate 1. Through the universal wheels 12 and the push handle 11, the vehicle plate 1 can be flexibly pushed and moved to realize the movement of the spraying position.

[0024] As an optional technical solution of this utility model, a support plate 7 is fixedly connected to the center of the top surface of the storage tank 4, a drive motor 8 is fixedly connected to the center of the top surface of the support plate 7, and a stirring rod 9 is fixedly connected to the output end of the drive motor 8. The stirring rod 9 is located inside the storage tank 4. The uniformity of fertilizer dissolution can be improved by driving the stirring rod 9 to stir the fertilizer inside the storage tank 4 through the drive motor 8.

[0025] As an optional technical solution of this utility model, an anti-slip layer is fixedly connected to the outer surface of the turntable 13 at one end of the rotating shaft 20. The length of the connecting shaft 21 is greater than the distance between the two turntables 13. The length of the guide strip through hole 15 is adapted to the radius of the turntable 13, so that the guiding sliding adjustment range of the connecting shaft 21 matches the radius length of the turntable 13, and the adjustment range is maximized.

[0026] As an optional technical solution of this utility model, the output end of the storage battery 10 is electrically connected to the power input end of the drive motor 8 and the reduction motor 18. The diameter of the turntable 13 is adapted to the length of the fertilizer spraying cylinder 3. The output end of the fertilizer spraying cylinder 3 is fixedly connected to a dispersing nozzle, so that the rotation of the turntable 13 drives the maximum sliding stroke of the piston 23 to match the length of the fertilizer spraying cylinder 3.

[0027] The following steps are required when using this agricultural quantitative fertilization device:

[0028] 1) The turntable 13 is driven to rotate by the geared motor 18, and the two connecting rods 14 are driven to push and pull back and forth through the connecting shaft 21, which in turn pushes and pulls the two push pistons 23 back and forth.

[0029] 2) When the piston 23 is pulled, the fertilizer inside the storage tank 4 is sucked into the fertilizer spraying nozzle 3 through the liquid inlet check valve 5 and the liquid inlet pipe 6, and then the water and fertilizer are sprayed out as the piston 23 is pushed, thus realizing spray fertilization.

[0030] 3) By loosening the locking nut 22, the position of the connecting shaft 21 can be slid along the guide strip through hole 15, changing the distance from the connecting shaft 21 to the rotating shaft 20 and the output end of the reduction motor 18, thereby changing the stroke of the driving connecting rod 14, and thus realizing the sliding stroke of the piston 23, realizing the adjustment of the liquid pumping volume in a single stroke, and realizing the flexible adjustment of the spraying volume;

[0031] 4) The spraying position can be moved flexibly by using the casters 12 and the push handle 11.

[0032] In summary, the rotation of the turntable 13 driven by the geared motor 18 drives the two connecting rods 14 to push and pull back and forth via the connecting shaft 21, which in turn pushes and pulls the two push pistons 23. When the push pistons 23 are pulled, the fertilizer inside the storage tank 4 is sucked into the fertilizer spraying cylinder 3 through the liquid inlet check valve 5 and the liquid inlet pipe 6. Then, the fertilizer is sprayed out as the push pistons 23 are pushed, realizing spray fertilization. The rotation of the turntable 13 realizes continuous pumping and spraying. Moreover, the sliding stroke of the push pistons 23 on the inner wall of the fertilizer spraying cylinder 3 is the same, so that the spray volume is equal each time, realizing quantitative spraying. By loosening the locking nut 22, the position of the connecting shaft 21 can be slid along the guide strip through hole 15, changing the distance from the connecting shaft 21 to the rotating shaft 20 and the output end of the geared motor 18, thereby changing the stroke of the driving connecting rods 14, and thus realizing the sliding stroke of the push pistons 23, realizing the adjustment of the liquid pumping volume per stroke, and realizing flexible adjustment of the spraying volume.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An agronomic quantitative fertilization device, characterized in that: The system includes a platform (1), a support frame (2) fixedly connected to the center of the top surface of the platform (1), a storage tank (4) fixedly connected to the center of the top surface of the support frame (2), and fertilizer spray nozzles (3) fixedly connected to the center of both sides of the support frame (2). Push pistons (23) are slidably connected to the inner walls of both fertilizer spray nozzles (3). A liquid inlet check valve (5) is fixedly connected to the top of one side of the spraying end of each of the two fertilizer spray nozzles (3), and the liquid inlet check valve (5) opens unidirectionally into the fertilizer spray nozzle (3). The injection end of the liquid inlet check valve (5) is fixedly connected to an inlet pipe (6). Both inlet pipes (6) are fixedly connected to and communicate with the bottom of the inner wall of the storage tank (4). A support ear (19) is fixedly connected to the middle of one side of the top surface of the vehicle plate (1). A rotating shaft (20) is rotatably connected to the center of the top of the support ear (19). A reduction motor (18) is fixedly connected to one side of the center of the top of the inner wall of the support frame (2). The output end of the reduction motor (18) and one end of the rotating shaft (20) are both fixedly connected to a dimensional... Both turntables (13) have guide strip-shaped through holes (15) on one side. The inner walls of the two guide strip-shaped through holes (15) are slidably connected to a connecting shaft (21). One end of the connecting shaft (21) is fixedly connected to a guide slider (17). The side of the connecting shaft (21) away from the guide slider (17) is threaded with a locking nut (22). One side of the turntable (13) at the output end of the geared motor (18) is fixedly connected to a guide flange plate (16). The two guide... The flange plate (16) is located on both sides of the guide strip through hole (15). The guide slider (17) is slidably connected to the two guide flange plates (16). The two push pistons (23) are fixedly connected to the center of one side of each other. The two connecting ears (24) are rotatably connected to one side of each connecting ear (24). The ends of the two connecting rods (14) away from the connecting shaft (21) are rotatably connected to the connecting shaft (21). The rotating shaft (20) is coaxially set with the output end of the reduction motor (18).

2. The agronomic quantitative fertilization device according to claim 1, characterized in that: The four corners of the bottom surface of the vehicle platform (1) are fixedly connected with casters (12), the edge of the top surface of the vehicle platform (1) is fixedly connected with a push handle (11), and the edge of the top surface of the vehicle platform (1) is fixedly connected with a battery (10).

3. The agronomic quantitative fertilization device according to claim 2, characterized in that: A support plate (7) is fixedly connected to the center of the top surface of the storage tank (4), and a drive motor (8) is fixedly connected to the center of the top surface of the support plate (7). A stirring rod (9) is fixedly connected to the output end of the drive motor (8), and the stirring rod (9) is located inside the storage tank (4).

4. The agronomic quantitative fertilization device according to claim 3, characterized in that: An anti-slip layer is fixedly connected to the outer surface of the turntable (13) at one end of the rotating shaft (20). The length of the connecting shaft (21) is greater than the distance between the two turntables (13). The length of the guide strip through hole (15) is adapted to the radius of the turntable (13).

5. The agronomic quantitative fertilization device according to claim 4, characterized in that: The output end of the storage battery (10) is electrically connected to the power input end of the drive motor (8) and the reduction motor (18). The diameter of the turntable (13) is adapted to the length of the fertilizer spraying nozzle (3). A dispersion nozzle is fixedly connected to the output end of the fertilizer spraying nozzle (3).