Quantitative fertilization device for tobacco planting

By designing a quantitative fertilization device and using a motor and gear system to control the discharge channel, the problem of uneven manual fertilization in tobacco planting was solved, achieving quantitative fertilization and improving fertilization efficiency.

CN223968274UActive Publication Date: 2026-03-06SICHUAN TOBACCO CO LIANGSHAN PREFECTURE CO DECHANG BRANCH
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Patent Information

Application Number
CN202520599219.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-03-06
Estimated Expiration
2035-04-01

AI Technical Summary

Technical Problem

In existing technologies, uneven artificial fertilization during tobacco cultivation makes it difficult to quantitatively control the amount of fertilizer, resulting in uneven tobacco growth and root burn, thus reducing fertilization efficiency.

Method used

A quantitative fertilization device for tobacco cultivation was designed, including a fixed block, a discharge arm, a distribution box, a quantitative box, and a partition plate. The device controls the opening and closing of the discharge channel and the discharge volume through a motor and gear system to achieve quantitative fertilization.

Benefits of technology

This method enables uniform fertilization of tobacco roots at different growth stages, avoiding root burn and improving the accuracy and efficiency of fertilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a quantitative fertilization device for tobacco planting, and relates to the technical field of tobacco planting, the quantitative fertilization device for tobacco planting comprises a fixed block, two discharging arms are hinged to the front side of the fixed block, each discharging arm comprises a material distribution box, a quantitative box and two partition plates, a feeding groove is formed in the material distribution box, and the quantitative box is hinged to the fixed block. An elastic spiral blade is rotatably installed in the feeding groove, a plurality of discharging channels are formed in the interior of the material distributing box, the interior of the quantitative box and the interior of the two partition plates in a circumferential array distribution mode, the positions of the multiple discharging channels in the material distributing box, the positions of the multiple discharging channels in the quantitative box and the positions of the multiple discharging channels in the two partition plates correspond to each other, and a feeding box is fixedly connected to the top of the fixing block. According to the quantitative fertilization device for tobacco planting, the second connecting rod can drive the second baffle to move in the discharging channel, so that the capacity of the discharging channel can be adjusted, a worker can conveniently adjust according to the fertilization amount required by tobacco at different stages, and the purpose of quantitative fertilization is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of tobacco planting technology, specifically a quantitative fertilization device for tobacco planting. Background Technology

[0002] Tobacco is one of my country's most important economic crops, ranking first in the world in terms of planting area and yield. In tobacco production, fertilizer directly affects the growth and development of tobacco plants, the yield and quality of tobacco leaves. It is an indispensable material resource in the tobacco production process and an important means for effectively controlling tobacco yield and quality. Currently, in tobacco cultivation, fertilizer is generally applied in three stages: the first is as a base fertilizer applied in strips or holes during ridging, mainly consisting of organic fertilizer and compound fertilizer; the second is as a seedling fertilizer applied in holes during transplanting; and the third is as a top dressing during the seedling stage.

[0003] Multiple fertilizations during tobacco cultivation are typically done manually, requiring the fertilizer to be applied around the roots. However, manual application can easily result in fertilizer sticking too closely to the roots, causing root burn. Furthermore, it's difficult to precisely and evenly distribute fertilizer around each plant, leading to uneven fertilizer concentration and negatively impacting growth. As the tobacco plants mature and their leaves unfold, the process becomes more difficult, reducing fertilization efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a quantitative fertilization device for tobacco cultivation, so as to solve the problems of uneven application and difficulty in controlling the amount of fertilizer in the existing technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quantitative fertilization device for tobacco planting, comprising a fixed block, with two discharge arms hinged to the front side of the fixed block. Each discharge arm includes a distributing box, a metering box, and two partition plates. The distributing box has a feeding trough inside, and elastic spiral blades are rotatably installed inside the feeding trough. The distributing box, the metering box, and the two partition plates all have multiple discharge channels arranged in a circular array inside. The multiple discharge channels inside the distributing box, the metering box, and the two partition plates are positioned correspondingly. The feeding box is fixedly connected to the top of the fixed block.

[0006] Preferably, a first motor is fixedly connected to one side of the dispensing box, the output end of the first motor is fixedly connected to the elastic spiral blade, the bottom of the dispensing box is fixedly connected to one of the partition plates, and the metering box is fixedly connected between the two partition plates. When working, the elastic spiral blade rotates to send the fertilizer into each discharge channel.

[0007] Preferably, each of the two partition plates has multiple first grooves at its top, and each of the multiple first grooves has a first baffle slidably connected inside. Each of the multiple first baffles inside the partition plate has a first connecting rod fixedly connected to one side. During operation, the discharge channel is opened and closed by the multiple first baffles, thereby controlling the discharge at the bottom of the device.

[0008] Preferably, a limiting plate is fixedly connected to one side of the discharge arm, a gear is rotatably installed on the inner side of the limiting plate, a second motor is fixedly connected to one side of the limiting plate, the output end of the second motor is fixedly connected to the gear, and a toothed engagement is provided on the opposite side of one end of each of the two first connecting rods to match the gear. The outer side of the gear is engaged with the two first connecting rods through the toothed engagement of the two first connecting rods.

[0009] Preferably, the top of the metering box is provided with multiple second sliding grooves, each of which is slidably connected to a second baffle. The multiple second baffles are respectively adapted to multiple discharge channels inside the metering box. One end of each of the multiple elastic spiral blades is respectively attached to multiple first baffles at the bottom of the metering box. A second connecting rod is fixedly connected to one side of each of the multiple second baffles. A limit slider is provided at the front end of the second connecting rod. The front end of the second connecting rod passes through the limit slider and is slidably connected to the limit slider. One side of the limit slider is fixedly connected to the metering box. A bolt is provided on one side of the limit slider. The bolt passes through the limit slider and is threadedly connected to the limit slider. Before operation, the worker can pull the second connecting rod to move the second baffle, thereby adjusting the space of the discharge channel inside the metering box and controlling the amount of fertilizer that can be stored in the discharge channel inside the metering box.

[0010] Preferably, two guide ports are provided on both sides of the bottom of the feeding box, a third baffle is fixedly connected to the inner side of one end of each of the two discharge arms, and an opening adapted to the guide ports is provided at the top of one end of each of the two discharge arms.

[0011] Preferably, an electric push rod is fixedly connected to the bottom of the fixed block, a limit block is fixedly connected to the output end of the electric push rod, and a limit rod is fixedly connected to one end of the top of each of the two discharge arms. Limit grooves adapted to the two limit rods are respectively opened at both ends of the limit block, and the two limit rods are slidably connected inside the two limit grooves. A handle is fixedly connected to the top of the fixed block, and multiple control buttons are provided on the top of the handle. The multiple control buttons are electrically connected to the first motor, the second motor and the electric push rod respectively, thereby controlling the operation of the device during operation.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this application, during operation, the electric push rod drives the discharge arm to open and close, and the second motor drives the gear to rotate. The rotation of the gear controls the opening and closing of the first baffle above and below the metering box, so that workers can place the discharge arm around the tobacco roots for fertilization. The discharge arm ensures that when workers fertilize the tobacco roots at different growth stages, they will not be affected by the tobacco leaves and will be able to spread the fertilizer around the tobacco roots.

[0014] 2. In this application, the worker can pull the second connecting rod to move the second baffle inside the discharge channel. The second baffle moves forward to reduce the capacity of the discharge channel. The capacity of multiple discharge channels inside the metering box is controlled by the second baffle, so that the worker can adjust the amount of fertilizer according to the quality of fertilizer required by tobacco at different stages, so as to achieve the purpose of quantitative fertilization. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the feeding box structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the internal structure of the material distribution box of this utility model;

[0018] Figure 4 This is a schematic diagram of the partition plate structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the quantitative box structure of this utility model.

[0020] Labels in the diagram: 1. Fixed block; 2. Discharge arm; 3. Feeding box; 4. Dividing box; 5. Divider plate; 6. Quantitative box; 7. Feeding trough; 8. Elastic spiral blade; 9. Discharge channel; 10. First motor; 11. First chute; 12. First baffle; 13. First connecting rod; 14. Limiting plate; 15. Gear; 16. Second motor; 17. Second chute; 18. Second baffle; 19. Second connecting rod; 20. Limiting slider; 21. Third baffle; 22. Electric push rod; 23. Limiting block; 24. Limiting rod; 25. Handle; 26. Bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: Figure 1 - Figure 5 As shown, this utility model provides a technical solution for a quantitative fertilization device for tobacco planting, including a fixed block 1. Two discharge arms 2 are hinged to the front side of the fixed block 1. The discharge arms 2 include a distributing box 4, a metering box 6, and two partition plates 5. A feeding trough 7 is opened inside the distributing box 4. An elastic spiral blade 8 is rotatably installed inside the feeding trough 7. Multiple discharge channels 9 are arranged in a circular array inside the distributing box 4, the metering box 6, and the two partition plates 5. The multiple discharge channels 9 inside the distributing box 4, the metering box 6, and the two partition plates 5 are positioned correspondingly. A feeding box 3 is fixedly connected to the top of the fixed block 1.

[0023] A first motor 10 is fixedly connected to one side of the dispensing box 4. The output end of the first motor 10 is fixedly connected to the elastic spiral blade 8. The bottom of the dispensing box 4 is fixedly connected to one of the partition plates 5. The metering box 6 is fixedly connected between the two partition plates 5. When working, the elastic spiral blade 8 rotates to send the fertilizer into each discharge channel 9.

[0024] Multiple first grooves 11 are provided on the top of both partition plates 5. Each of the multiple first grooves 11 is slidably connected to a first baffle 12. A first connecting rod 13 is fixedly connected to one side of each of the multiple first baffles 12 inside the partition plate 5. During operation, the discharge channel 9 is opened and closed by the multiple first baffles 12, thereby controlling the discharge at the bottom of the device.

[0025] A limiting plate 14 is fixedly connected to one side of the discharge arm 2. A gear 15 is rotatably installed on the inner side of the limiting plate 14. A second motor 16 is fixedly connected to one side of the limiting plate 14. The output end of the second motor 16 is fixedly connected to the gear 15. Each of the opposite sides of one end of the two first connecting rods 13 is provided with a tooth that is compatible with the gear 15. The outer side of the gear 15 is engaged with the two first connecting rods 13 through the tooth of the two first connecting rods 13.

[0026] The top of the metering box 6 has multiple second slide grooves 17, and each of the multiple second slide grooves 17 is slidably connected to a second baffle 18. The multiple second baffles 18 are respectively adapted to multiple discharge channels 9 inside the metering box 6. One end of multiple elastic spiral blades 8 is respectively attached to multiple first baffles 12 at the bottom of the metering box 6. A second connecting rod 19 is fixedly connected to one side of the multiple second baffles 18. A limit slider 20 is provided at the front end of the second connecting rod 19. The front end of the second connecting rod 19 passes through the limit slider 20 and is slidably connected to the limit slider 20. One side of the limit slider 20 is fixedly connected to the metering box 6. A bolt 26 is provided on one side of the limit slider 20. The bolt 26 passes through the limit slider 20 and is threadedly connected to the limit slider 20. Before operation, the worker can pull the second connecting rod 19 to drive the second baffle 18 to move, thereby adjusting the space of the discharge channel 9 inside the metering box 6, thereby controlling the amount of fertilizer that can be stored in the discharge channel 9 inside the metering box 6.

[0027] The bottom of the feeding box 3 has two guide ports on both sides. The inner side of one end of each of the two discharge arms 2 is fixedly connected with a third baffle 21. The top of one end of each of the two discharge arms 2 is provided with an opening that matches the guide ports.

[0028] An electric push rod 22 is fixedly connected to the bottom of the fixed block 1. A limit block 23 is fixedly connected to the output end of the electric push rod 22. A limit rod 24 is fixedly connected to one end of the top of each of the two discharge arms 2. Limiting grooves that are adapted to the two limit rods 24 are respectively opened at both ends of the limit block 23. The two limit rods 24 are slidably connected to the two limit grooves. A handle 25 is fixedly connected to the top of the fixed block 1. Multiple control buttons are provided on the top of the handle 25. The multiple control buttons are electrically connected to the first motor 10, the second motor 16 and the electric push rod 22 respectively, thereby controlling the operation of the device during operation.

[0029] It should be noted that this utility model is a quantitative fertilization device for tobacco planting. During operation, the worker carries a storage bag containing fertilizer on their back or pushes a fertilizer cart. The fertilizer is then transported through a flexible shaftless screw conveyor. The output end of the flexible shaftless screw conveyor is connected to the inlet at the top of the feeding box 3, thereby continuously conveying fertilizer into the feeding box 3. The flexible shaftless screw conveyor is a mature existing technology, so it will not be described in detail here. Before operation, the first motor 10 drives the elastic screw blade 8 to rotate, guiding the fertilizer inside the feeding box 3 into the discharge channel 9. The first baffle 12 inside the bottom partition plate 5 of the discharge channel 9 is initially positioned inside the first chute 11. The first baffle 12 inside the bottom partition plate 5 of the quantitative box 6 is initially positioned outside the first chute 11 and blocks the discharge channel 9 to prevent fertilizer leakage. When the discharge channel 9 inside the quantitative box 6 is filled with fertilizer, the worker can start the fertilization work.

[0030] When the worker applies fertilizer, the electric push rod 22 moves backward along with the limiting block 23. The limiting block 23, through the limiting rod 24, drives the two discharge arms 2 to rotate around the hinge point between the discharge arm 2 and the fixed block 1. At this time, the front ends of the two discharge arms 2 move away from each other, opening the discharge arms 2, allowing the worker to place the device. Then, the limiting block 23 moves forward, causing the two discharge arms 2 to close. At this time, the tobacco root is located between the two discharge arms 2. Subsequently, the second motor 16 is controlled by the control button to work. The second motor 16 drives the gear 15 to rotate, and the gear 15 drives the two first connecting rods 13 to rotate. At this time, the first baffle 12 at the top of the metering box 6 moves backward out of the first chute 11, closing the discharge channel 9. A connecting rod 13 moves forward into the first chute 11 to open the discharge channel 9. At this time, the fertilizer inside the metering box 6 falls from the bottom of the device, thus distributing it evenly around the tobacco roots for fertilization. Then, the device is removed by controlling the opening and closing of the two discharge arms 2. The second motor 16 reverses to close the discharge channel 9 at the bottom of the metering box 6. At this time, the first motor 10 works to drive the elastic spiral blades 8 to rotate and transport fertilizer, thus refilling the discharge channel 9 inside the metering box 6, so that the next tobacco can be fertilized. The discharge arms 2 are opened and closed by the limiting block 23, so that the device can fertilize the roots of tobacco at different growth stages without being affected by the tobacco leaves.

[0031] When fertilizing, the two discharge arms 2 close to bring the two feeding troughs 7 close to each other. The feeding troughs 7 prevent the tobacco from sticking to the inside of the discharge arms 2 when the worker places the device, thus preventing root burn. At the same time, when the two discharge arms 2 open, the two feeding troughs 7 move to the bottom of the feed box 3 guide port and block the guide port to prevent fertilizer from leaking out.

[0032] When it is necessary to control the mass of fertilizer dispensed by the device, the worker can pull the second connecting rod 19 to move the second baffle 18 inside the discharge channel 9. Then, rotate the bolt 26 so that one end of the bolt 26 is tightly attached to the second connecting rod 19. At this time, the second connecting rod 19 is fixed to the limiting slider 20 under the action of the bolt 26. When the second baffle 18 moves forward, the capacity of the discharge channel 9 decreases. By controlling the capacity of multiple discharge channels 9 inside the metering box 6 through the second baffle 18, the worker can easily adjust the amount of fertilizer applied according to the mass of fertilizer required by the tobacco at different stages, so as to achieve the purpose of quantitative fertilization.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tobacco planting quantitative fertilizer application device comprising a fixed block (1), characterized in that: The front side of the fixed block (1) is hinged with two discharging arms (2), the discharging arm (2) comprises a distribution box (4), a quantitative box (6) and two partition plates (5), a feeding groove (7) is arranged in the distribution box (4), the feeding groove (7) is internally rotatably connected with an elastic spiral blade (8), a plurality of discharge channels (9) are circumferentially and arrayed in the distribution box (4), the quantitative box (6) and the two partition plates (5), the plurality of discharge channels (9) in the distribution box (4), the quantitative box (6) and the two partition plates (5) correspond in position, and the top of the fixed block (1) is fixedly connected with a feeding box (3).

2. The tobacco-planting quantitative fertilizer applying device according to claim 1, characterized in that: The side of the distribution box (4) is fixedly connected with a first motor (10), the output end of the first motor (10) is fixedly connected with the elastic spiral blade (8), the bottom of the distribution box (4) is fixedly connected with one of the partition plates (5), and the quantitative box (6) is fixedly connected between the two partition plates (5).

3. The tobacco-planting quantitative fertilizer applying device according to claim 2, characterized in that: The top of each of the two partition plates (5) is provided with a plurality of first sliding grooves (11), and the first sliding grooves (11) are internally and slidably connected with first baffles (12); and the side of each of the plurality of first baffles (12) in the partition plate (5) is fixedly connected with a first connecting rod (13).

4. The quantitative fertilizer applicator for tobacco planting according to claim 3, characterized in that: The side of the discharging arm (2) is fixedly connected with a limiting plate (14), the inner side of the limiting plate (14) is rotatably connected with a gear (15), the side of the limiting plate (14) is fixedly connected with a second motor (16), the output end of the second motor (16) is fixedly connected with the gear (15), and the opposite side of one end of each of the two first connecting rods (13) is provided with a clamping tooth matched with the gear (15); and the outer side of the gear (15) is meshingly connected with the two first connecting rods (13) through the clamping teeth of the two feeding boxes (3).

5. The quantitative fertilizer applicator for tobacco planting according to claim 2, characterized in that: The top of the quantitative box (6) is provided with a plurality of second sliding grooves (17), the second sliding grooves (17) are internally and slidably connected with second baffles (18), the plurality of second baffles (18) are respectively matched with the plurality of discharge channels (9) in the quantitative box (6), one end of each of the plurality of elastic spiral blades (8) is respectively matched with the plurality of first baffles (12) in the partition plate (5) at the bottom of the quantitative box (6), the side of each of the plurality of second baffles (18) is fixedly connected with a second connecting rod (19), the front end of the second connecting rod (19) is provided with a limiting sliding block (20), the front end of the second connecting rod (19) penetrates through and is slidably connected with the limiting sliding block (20), the side of the limiting sliding block (20) is fixedly connected with the quantitative box (6), the side of the limiting sliding block (20) is provided with a bolt (26), the bolt (26) penetrates through and is threadedly connected with the limiting sliding block (20).

6. The quantitative fertilizer apparatus for tobacco planting according to claim 2, characterized in that: The bottom of the feeding box (3) is provided with two material guiding openings, the inner side of one end of each of the two discharging arms (2) is fixedly connected with a third baffle (21), and the top of one end of each of the two discharging arms (2) is provided with an opening matched with the material guiding opening.

7. The quantitative fertilizer apparatus for tobacco planting according to claim 1, characterized in that: The bottom of the fixed block (1) is fixedly connected with an electric push rod (22), the output end of the electric push rod (22) is fixedly connected with a limiting block (23), one end of the top of each of the two discharge arms (2) is fixedly connected with a limiting rod (24), the two ends of the limiting block (23) are respectively provided with limiting grooves matched with the two limiting rods (24), and the two limiting rods (24) are respectively and slidably connected in the two limiting grooves.