Liquid fertilizer spraying device

The liquid fertilizer spraying device, with its planetary gear transmission system and multi-stirring rod design, addresses the diverse needs of different crops for liquid fertilizer concentration, achieving efficient mixing and precise spraying, thereby improving fertilization efficiency and fertilizer utilization.

CN224139564UActive Publication Date: 2026-04-21ZHUHAI KANGZHONGMIN BIOTECHNOLOGY CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHUHAI KANGZHONGMIN BIOTECHNOLOGY CO LTD
Filing Date
2025-07-24
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing liquid fertilizer spraying devices cannot meet the diverse needs of different crops for liquid fertilizer concentration, and traditional stirring mechanisms are inefficient and cannot effectively dilute high-viscosity liquid fertilizers.

Method used

The mixing mechanism, which uses a planetary gear transmission system and multiple mixing rods, combined with a rotatable spraying mechanism, enables efficient mixing and wide-angle spraying of liquid fertilizer, adapting to different crop row spacings and terrains.

Benefits of technology

It improves the mixing quality and spraying efficiency of liquid fertilizers, reduces dead zones in mixing, achieves precision fertilization, reduces the intensity of manual operation, and improves fertilizer utilization.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224139564U_ABST
    Figure CN224139564U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of fertilizer spraying devices, and discloses a liquid fertilizer spraying device which comprises a bottom plate, pulleys are fixedly connected to the lower surface of the bottom plate, a fixing plate is fixedly connected to the upper surface of the bottom plate, and a stirring mechanism is arranged on the side, away from the two ends of the bottom plate, of the fixing plate. According to the liquid fertilizer spraying device, the stirring mechanism is arranged and matched with cooperative work of a planetary gear transmission system and multiple stirring rods, specifically, a first motor arranged in a stirring barrel drives a sun gear on a fixing shaft to rotate, the sun gear is meshed with a planetary gear, and the planetary gear is meshed with a gear ring; the planetary gear structure enables the auxiliary shaft to rotate while the auxiliary shaft revolves. Meanwhile, the main stirring rods on the fixed shaft and the auxiliary stirring rods on the auxiliary shaft are distributed in a crossed manner. According to the design, the stirring coverage range is expanded, and the mixing quality and the working efficiency are improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of fertilizer spraying technology, specifically a liquid fertilizer spraying device. Background Technology

[0002] Agricultural production maintenance and construction involve many plants and green crops, requiring continuous maintenance such as watering, pruning, and fertilization. Agricultural spraying devices are maintenance equipment that promotes plant growth, increases humidity in industrial parks, and purifies and humidifies the air. During agricultural planting, these devices can be used to quickly spray liquid fertilizers.

[0003] According to a public notice (Announcement No.: CN222639110U3) regarding a liquid fertilizer spraying device for landscaping, the above application utilizes a water pump, a water pipe, a water delivery pipe, a hose, and a spraying base to facilitate the transport of mixed liquid fertilizer to the spraying device, enabling convenient spraying. Furthermore, the combined action of a bearing housing, a first gear, a second motor, a second gear, an adjusting rod, and an adjusting knob allows for adjustment of the height and angle of the spraying device according to usage requirements, facilitating faster and more effective spraying of trees within the landscaping.

[0004] However, in actual use, the liquid fertilizer usually needs to be diluted with water for emergency dilution. The stirring mechanism of the above-mentioned equipment only relies on a single stirring rod to stir and dilute the liquid pesticide. The required concentration of liquid fertilizer varies when facing different crops, and the stirring mechanism of the equipment cannot meet the needs of such diverse liquid fertilizer spraying devices. In view of this, we propose a liquid fertilizer spraying device. Utility Model Content

[0005] The purpose of this invention is to provide a liquid fertilizer spraying device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A liquid fertilizer spraying device includes a base plate, a pulley fixedly connected to the lower surface of the base plate, a fixing plate fixedly connected to the upper surface of the base plate, and a stirring mechanism provided on the side of the fixing plate away from both ends of the base plate. The stirring mechanism includes:

[0007] A stirring drum, wherein a first motor is fixedly connected to one outer wall of the stirring drum, a fixed shaft is fixedly connected to the output end of the first motor, a sun gear is fixedly connected to the outer surface of the fixed shaft, a planet gear meshes with the outer surface of the sun gear, a gear ring meshes with the outer surface of the planet gear, and an auxiliary shaft is fixedly connected to the side of the planet gear away from the first motor;

[0008] A partition is provided, the side wall of which is rotatably connected to the inner wall of the mixing drum. A main stirring rod is fixedly connected to the outer surface of the fixed shaft, and a secondary stirring rod is fixedly connected to the outer surface of the auxiliary shaft. A feeding port and a discharging port are provided on the outer surface of the mixing drum.

[0009] Preferably, the main stirring rods are provided in multiple sets, and the multiple sets of main stirring rods are distributed in a circumferential array on the outer surface of the fixed shaft. The main stirring rods and auxiliary stirring rods are distributed in a cross pattern, and the upper surface of the feeding port is threaded with a cover plate.

[0010] Preferably, one end of a water pipe is fixedly connected to the inner wall of the discharge port, and the other end of the water pipe is fixedly connected to an equipment box through its outer surface.

[0011] Preferably, the equipment box is equipped with a spraying mechanism, which includes a pump. The input end of the pump is fixedly connected to the end of the water pipe away from the stirring mechanism. The output end of the pump is fixedly connected to a pressurizer. The output end of the pressurizer is fixedly connected to a support frame, and the lower surface of the support frame is fixedly connected to a nozzle.

[0012] Preferably, there are two sets of equipment boxes, which are connected by a connecting pipe. A second motor is fixedly connected to the upper surface of the lower equipment box. A pinion is fixedly connected to the outer surface of the output end of the second motor. A transmission wheel meshes with the outer surface of the pinion. The upper surface of the transmission wheel is fixedly connected to the lower surface of the upper equipment box. The outer surface of the connecting pipe is rotatably connected to the lower equipment box.

[0013] Preferably, a hinge seat is fixedly connected to the side wall of the base plate, and a pusher is hinged to the outer surface of the hinge seat.

[0014] Preferably, the sidewall of the partition is provided with a slot that matches the dimensions of the auxiliary shaft and the fixed shaft.

[0015] Compared with the prior art, the present invention provides a liquid fertilizer spraying device, which has the following beneficial effects:

[0016] 1. This liquid fertilizer spraying device, through the installation of a stirring mechanism, works in conjunction with a planetary gear transmission system and multiple stirring rods. Specifically, a first motor inside the stirring drum drives the sun gear on a fixed shaft to rotate. The sun gear meshes with planetary gears, which in turn mesh with a gear ring. This planetary gear structure causes the auxiliary shaft to rotate simultaneously while revolving around the sun gear. Meanwhile, the main stirring rod on the fixed shaft and the secondary stirring rod on the auxiliary shaft are arranged in a crisscross pattern and achieve stable rotation with the support of a partition. This design not only expands the stirring coverage area and reduces dead zones, but also enhances shear force through the combined motion of the main and secondary stirring rods, promoting uniform dissolution of components. It is particularly suitable for the preparation of high-viscosity liquid fertilizers, improving mixing quality and operational efficiency.

[0017] 2. This liquid fertilizer spraying device, equipped with a spraying mechanism, works with a pump inside the equipment box to draw mixed fertilizer from the water pipe. After being pressurized by a pressurizer, it is delivered to the nozzles on the support frame for efficient spraying. Crucially, the two equipment boxes are connected by a connecting pipe, and a second motor drives a small gear meshing with a transmission wheel, causing the upper equipment box to rotate relative to the lower one. The rotating connection design of the connecting pipe allows for free adjustment of the entire spraying unit at a large angle. This rotatable structure allows the operator to adjust the nozzle direction in real time according to crop row spacing or terrain requirements, achieving directional or wide-area spraying. This avoids the uneven coverage problem of traditional fixed nozzles, not only improving fertilizer utilization and reducing waste but also reducing manual labor intensity, making it particularly suitable for precision fertilization operations in large-area farmland. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is one of the schematic diagrams of the stirring mechanism of this utility model;

[0020] Figure 3 This is the second schematic diagram of the stirring mechanism of this utility model;

[0021] Figure 4 This is one of the schematic diagrams of the spraying mechanism of this utility model;

[0022] Figure 5 This is the second schematic diagram of the spraying mechanism of this utility model.

[0023] In the diagram: 1. Base plate; 11. Pulley; 12. Hinge seat; 13. Push handle; 14. Fixed plate; 2. Stirring mechanism; 21. Stirring drum; 22. First motor; 23. Fixed shaft; 24. Sun gear; 25. Planetary gear; 26. Gear ring; 27. Auxiliary shaft; 28. Partition plate; 29. ​​Main stirring rod; 210. Secondary stirring rod; 211. Feed port; 212. Discharge port; 3. Water pipe; 31. Equipment box; 4. Spraying mechanism; 41. Pump; 42. Pressurizer; 43. Support frame; 44. Nozzle; 45. Second motor; 46. Pinion; 47. Transmission wheel; 48. Connecting pipe. Detailed Implementation

[0024] like Figures 1-5As shown, this utility model provides a technical solution: a liquid fertilizer spraying device, including a base plate 1, a pulley 11 fixedly connected to the lower surface of the base plate 1, a fixing plate 14 fixedly connected to the upper surface of the base plate 1, and a stirring mechanism 2 provided on the side of the fixing plate 14 away from both ends of the base plate 1. The stirring mechanism 2 includes a stirring cylinder 21, a first motor 22, a fixed shaft 23, a sun gear 24, a planetary gear 25, a gear ring 26, an auxiliary shaft 27, a partition 28, a main stirring rod 29, a secondary stirring rod 210, a feeding port 211, and a discharge port 212.

[0025] In one embodiment of this utility model, a first motor 22 is fixedly connected to one side of the outer wall of the stirring drum 21. A fixed shaft 23 is fixedly connected to the output end of the first motor 22. A sun gear 24 is fixedly connected to the outer surface of the fixed shaft 23. Planet gears 25 mesh with the outer surface of the sun gear 24. A gear ring 26 meshes with the outer surface of the planet gears 25. The first motor 22 drives the fixed shaft 23 to rotate, further driving the sun gear 24 fixedly connected to the outer surface of the fixed shaft 23, thereby enabling the planet gears 25 to rotate around the gear ring 26. The planet gears 25 can revolve while rotating on their own axis. An auxiliary shaft 27 is fixedly connected to the side of the planet gears 25 away from the first motor 22. While the planet gears 25 rotate on their own axis, the auxiliary shaft 27 can rotate. The side wall of the partition 28 The main stirring rod 29 is rotatably connected to the inner wall of the mixing drum 21, and the outer surface of the fixed shaft 23 is fixedly connected to the main stirring rod 29. The outer surface of the auxiliary shaft 27 is fixedly connected to the auxiliary stirring rod 210. The main stirring rod 29 and the auxiliary stirring rod 210 are respectively fixedly connected to the outer surfaces of the fixed shaft 23 and the auxiliary shaft 27, respectively, which can fully stir the liquid fertilizer used for dilution and stirring. The outer surface of the mixing drum 21 is provided with a feeding port 211 and a discharging port 212. There are multiple sets of main stirring rods 29, and the multiple sets of main stirring rods 29 are distributed in a circumferential array on the outer surface of the fixed shaft 23. The main stirring rods 29 and the auxiliary stirring rods 210 are distributed in a cross pattern. The main stirring rods 29 on the fixed shaft 23 and the auxiliary stirring rods 210 on the auxiliary shaft 27 are distributed in a cross pattern and achieve stable rotation under the support of the partition plate 28. This design not only expands the mixing coverage area and reduces the mixing dead corners, but also has a cover plate threaded on the upper surface of the feeding port 211, which can prevent liquid fertilizer from overflowing the mixing drum 21 during the mixing process. The inner wall of the discharge port 212 is fixedly connected to one end of the water pipe 3, and the outer surface of the other end of the water pipe 3 is fixedly connected to the equipment box 31.

[0026] In addition, a spraying mechanism 4 is installed inside the equipment box 31. The spraying mechanism 4 includes a pump 41. The input end of the pump 41 is fixedly connected to the end of the water pipe 3 away from the stirring mechanism 2. The output end of the pump 41 is fixedly connected to a pressurizer 42. The output end of the pressurizer 42 is fixedly connected to a support frame 43, and a nozzle 44 is fixedly connected to the lower surface of the support frame 43. Two sets of equipment boxes 31 are provided. The two sets of equipment boxes 31 are connected by a connecting pipe 48. A second motor 45 is fixedly connected to the upper surface of the lower equipment box 31. A pinion 46 is fixedly connected to the outer surface of the output end of the second motor 45. A transmission gear meshes with the outer surface of the pinion 46. The upper surface of the drive wheel 47 is fixedly connected to the lower surface of the upper equipment box 31, and the outer surface of the connecting pipe 48 is rotatably connected to the lower equipment box 31. A spraying mechanism 4, in conjunction with a pump 41 inside the equipment box 31, draws mixed fertilizer from the water pipe 3, pressurizes it through a pressurizer 42, and then delivers it to the nozzles 44 on the support frame 43 for efficient spraying. Crucially, the two equipment boxes 31 are connected by the connecting pipe 48, and a second motor 45 drives a pinion 46 to mesh with the drive wheel 47, causing the upper equipment box 31 to rotate relative to the lower equipment box 31. Simultaneously, the rotatable design of the connecting pipe 48 allows for free adjustment of the entire spraying unit at large angles. This rotatable structure allows the operator to adjust the direction of the nozzles 44 in real time according to crop row spacing or terrain requirements, achieving directional or wide-area spraying. This avoids the uneven coverage problem of traditional fixed nozzles 44, not only improving fertilizer utilization and reducing waste but also reducing manual labor intensity, making it particularly suitable for precision fertilization operations in large-area farmland.

[0027] In this embodiment of the utility model, a hinge seat 12 is fixedly connected to the side wall of the base plate 1, and a pusher 13 is hinged to the outer surface of the hinge seat 12. The pusher 13 is hinged to the side wall of the base plate 1, and can be adjusted at various angles to accommodate different heights of workers. The side wall of the partition plate 28 is provided with a slot that matches the size of the auxiliary shaft 27 and the fixed shaft 23. By opening a slot in the side wall of the partition plate 28, and the slot matching the size of the auxiliary shaft 27 and the fixed shaft 23, the planetary gear 25 and the sun gear 24 can be satisfied that the planetary gear 25 remains stable during its rotation and revolution in the actual production process, thus ensuring the stable operation of the entire stirring mechanism 2.

[0028] In this invention, during use, raw materials are fed into the mixing drum 21 through the feeding port 211. The first motor 22 is started to drive the fixed shaft 23 to rotate, which in turn drives the sun gear 24 to rotate. The sun gear 24 meshes with the planetary gears 25, causing them to revolve around and rotate within the gear ring 26. The planetary gears 25 drive the auxiliary stirring rods 210 to move through the auxiliary shaft 27. At the same time, multiple sets of main stirring rods 29 on the fixed shaft 23 rotate, and the main stirring rods 29 and auxiliary stirring rods 210 move in a cross motion to achieve thorough mixing. After mixing, the fertilizer enters the equipment box 31 from the discharge port 212 through the water pipe 3. After being drawn by the pump 41, it is pressurized by the pressurizer 42 and finally sprayed out through the nozzles 44 connected to the support frame 43. In addition, the second motor 45 drives the pinion 46 to drive the transmission wheel 47 to rotate, so that the upper equipment box 31 and the nozzle 44 assembly rotate as a whole to adjust the spraying angle. The bottom of the device moves through the pulleys 11 of the base plate 1.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A liquid fertilizer spraying device, comprising a bottom plate (1), the lower surface of the bottom plate (1) is fixedly connected with a pulley (11), and the upper surface of the bottom plate (1) is fixedly connected with a fixed plate (14), characterized in that: A stirring mechanism (2) is provided on one side of the fixed plate (14) away from both ends of the bottom plate (1). The stirring mechanism (2) includes: A stirring drum (21) is fixedly connected to a first motor (22) on one side of its outer wall. A fixed shaft (23) is fixedly connected to the output end of the first motor (22). A sun gear (24) is fixedly connected to the outer surface of the fixed shaft (23). A planet gear (25) meshes with the outer surface of the sun gear (24). A gear ring (26) meshes with the outer surface of the planet gear (25). An auxiliary shaft (27) is fixedly connected to the side of the planet gear (25) away from the first motor (22). The partition (28) is rotatably connected to the inner wall of the mixing drum (21). The outer surface of the fixed shaft (23) is fixedly connected to the main stirring rod (29). The outer surface of the auxiliary shaft (27) is fixedly connected to the auxiliary stirring rod (210). The outer surface of the mixing drum (21) is provided with a feeding port (211) and a discharge port (212).

2. A liquid fertilizer spraying device according to claim 1, characterized in that: The number of main stirring rods (29) is set in multiple sets, and the multiple sets of main stirring rods (29) are distributed in a circumferential array on the outer surface of the fixed shaft (23). The main stirring rods (29) and the auxiliary stirring rods (210) are distributed in a cross pattern. The upper surface of the feeding port (211) is threaded with a cover plate.

3. The liquid fertilizer spraying device according to claim 1, characterized in that: One end of a water pipe (3) is fixedly connected to the inner wall of the discharge port (212), and the other end of the water pipe (3) is fixedly connected to an equipment box (31) through the outer surface.

4. A liquid fertilizer injection apparatus as defined in claim 3, wherein: The equipment box (31) is equipped with a spraying mechanism (4), which includes a pump (41). The input end of the pump (41) is fixedly connected to the end of the water pipe (3) away from the stirring mechanism (2). The output end of the pump (41) is fixedly connected to a pressurizer (42). The output end of the pressurizer (42) is fixedly connected to a support frame (43), and the lower surface of the support frame (43) is fixedly connected to a nozzle (44).

5. A liquid fertilizer injection apparatus as defined in claim 3, wherein: There are two sets of equipment boxes (31). The two sets of equipment boxes (31) are connected by a connecting pipe (48). A second motor (45) is fixedly connected to the upper surface of the lower equipment box (31). A small gear (46) is fixedly connected to the outer surface of the output end of the second motor (45). A transmission wheel (47) meshes with the outer surface of the small gear (46). The upper surface of the transmission wheel (47) is fixedly connected to the lower surface of the upper equipment box (31). The outer surface of the connecting pipe (48) is rotatably connected to the lower equipment box (31).

6. The liquid fertilizer injection apparatus of claim 1, wherein: The side wall of the base plate (1) is fixedly connected to a hinge seat (12), and a pusher (13) is hinged to the outer surface of the hinge seat (12).

7. The liquid fertilizer spraying device of claim 1, wherein: The sidewall of the partition (28) has a slot that matches the size of the auxiliary shaft (27) and the fixed shaft (23).

Citation Information

Patent Citations

  • Liquid fertilizer spraying device for garden planting

    CN222639110U