A portable fertilizer applicator with adjustable fertilizer rate

Abstract

The utility model discloses a portable fertilizer applicator of adjustable fertilization amount, including base, fertilization subassembly, liquid storage cylinder and drive assembly, and fertilization subassembly includes shell, conversion disc and fertilizer amount adjusting mechanism, the shell is fixed on the base, the upper and lower both ends of shell form respectively and go into the liquid mouth and the liquid mouth of going out, the conversion disc sets up in the inner chamber of shell, the conversion disc forms along its axial first cavity and second cavity, two second cavities distribute in the both sides of first cavity and two second cavities are close to the side of conversion disc edge and are all set up through -hole, and this through -hole corresponds with the liquid mouth and the liquid mouth of going out, the middle section of fertilizer amount adjusting mechanism sets up in first cavity, and its both ends set up in two second cavities respectively, the both ends of fertilizer amount adjusting mechanism can move in two second cavities simultaneously to adjust the space size of two second cavities in synchronization, and then can adjust fertilization amount.

Description

Technical Field

[0001] This utility model relates to the field of tobacco fertilization technology, specifically to a portable fertilizer applicator with adjustable fertilizer application rate. Background Technology

[0002] Fertilization in tobacco cultivation is primarily to meet the nutrient requirements of tobacco plants during their growth. Tobacco is a fertilizer-loving crop, requiring high levels of elements such as nitrogen, phosphorus, and potassium. Nitrogen promotes leaf growth, phosphorus benefits root development, and potassium improves leaf quality and combustibility. The natural nutrients in the soil are often insufficient to support the tobacco's entire growth cycle; therefore, scientific fertilization is necessary. Proper fertilization not only increases tobacco yield but also improves its appearance, color, oil content, and aroma compounds, thereby enhancing the economic value of tobacco.

[0003] However, most existing fertilizer applicators for tobacco are simple sprayers. While they can meet basic fertilization needs, they have significant limitations in controlling and adjusting the amount of fertilizer solution used. They mostly rely on manual estimation or experience-based control, which can easily lead to over- or under-fertilization. This not only affects the normal growth of tobacco crops but also causes fertilizer waste and soil pollution. Utility Model Content

[0004] In view of this, the present invention provides a portable fertilizer applicator with adjustable fertilizer application rate, which can achieve precise control of fertilizer application, thereby solving the technical problem that existing fertilizer applicators rely on manual estimation, resulting in over- or under-fertilization, which in turn affects the normal growth of tobacco crops, as well as fertilizer waste and environmental pollution.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This utility model provides a portable fertilizer applicator with adjustable fertilizer application rate, comprising: Base; A fertilizer application assembly includes a housing, a conversion disc, and a fertilizer dosage adjustment mechanism. The housing is fixed to a base, and an inlet and an outlet are formed at the upper and lower ends of the housing, respectively. The conversion disc is disposed in the inner cavity of the housing, and a first cavity and a second cavity are formed along its axial direction on the conversion disc. The two second cavities are distributed on both sides of the first cavity, and each of the two second cavities has a through hole on the side near the edge of the conversion disc. The through hole corresponds to the inlet and outlet. The middle section of the fertilizer dosage adjustment mechanism is disposed in the first cavity, and its two ends are respectively disposed in the two second cavities. The two ends of the fertilizer dosage adjustment mechanism can move simultaneously in the two second cavities to synchronously adjust the space size of the two second cavities. A liquid storage cylinder, the discharge end of which is connected to the liquid inlet; A drive assembly, mounted on the base, is connected to the conversion disk so that the conversion disk can rotate 180° and return to its original position.

[0006] In some embodiments, the fertilizer adjustment mechanism includes a bidirectional screw, a drive plate, a transmission rod, and a movable plate. The bidirectional screw is disposed in a first cavity and its two ends are rotatably connected to the inner wall of the first cavity. The drive plate is disposed in the first cavity, and one end of each of the two drive plates has a threaded hole that mates with the bidirectional screw. The other ends of the two drive plates are fixedly connected to one end of each of the two transmission rods. The other ends of the two transmission rods extend into two second cavities and are fixedly connected to two movable plates. The two ends of the two movable plates are slidably and sealingly connected to the inner wall of each of the two second cavities.

[0007] In some embodiments, the fertilizer adjustment mechanism further includes bearing seats, with two bearing seats installed on the upper and lower sides of the first cavity, and the two ends of the bidirectional screw being rotatably disposed in the two bearing seats respectively.

[0008] In some embodiments, the bidirectional screw has a plurality of protrusions evenly arranged circumferentially along its central portion.

[0009] In some embodiments, the fertilization assembly further includes two edge discs, which are respectively disposed on two sides of the conversion disc. The edge disc closer to the fertilizer adjustment mechanism seals the two second cavities, while a window is provided in the middle for exposing the first cavity. The edge disc farther away from the fertilizer adjustment mechanism is connected to the drive assembly.

[0010] In some embodiments, the two second cavities have the same spatial size.

[0011] In some embodiments, the drive assembly includes a rotating shaft, a transmission mechanism, a pressure plate, a pressure rod, and a fixing plate. The fixing plate is disposed on one side of the base. One end of the pressure rod passes through the fixing plate and is fixedly connected to one side of the pressure plate. The transmission mechanism is fixed to the other side of the pressure plate. The transmission mechanism is connected to the rotating shaft, and the other end of the rotating shaft is connected to the conversion disc.

[0012] In some embodiments, the drive assembly further includes an elastic element, the two ends of which are respectively connected to a set of opposite sides of the fixing plate and the pressure plate.

[0013] In some embodiments, the transmission mechanism includes a rack and a gear. One end of the rack is fixedly connected to the pressure plate, and the other end is arranged vertically along the base. The gear meshes with the rack. One end of the rotating shaft is installed in the central hole of the gear, and the other end of the rotating shaft is connected to the conversion disc.

[0014] In some embodiments, the base includes a mounting bracket and a protective shell, both of which are fixed to the mounting bracket. The protective shell partially encloses the drive assembly and is detachably connected to the mounting bracket.

[0015] Compared with the prior art, the beneficial effects of this utility model mainly include: This utility model provides a portable fertilizer applicator with adjustable fertilizer application rate. A drive assembly rotates the conversion disc 180° and then resets it. The two second chambers on the conversion disc then alternately connect to the inlet and outlet, allowing liquid fertilizer from the storage cylinder to be applied to plants such as tobacco through the two second chambers. Furthermore, the fertilizer application rate adjustment mechanism allows for simultaneous adjustment of the size of the two second chambers. This enables users to flexibly change the volume of the second chambers, controlling and adjusting the amount of fertilizer applied per application. This avoids the problems of over- or under-application that occur with traditional manual estimation, effectively improving fertilizer utilization, reducing fertilizer waste, and minimizing the environmental burden on soil and water. It provides a scientific and controllable fertilization method for agricultural production. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the portable fertilizer applicator described in this utility model; Figure 2 This is another overall structural schematic diagram of the portable fertilizer applicator described in this utility model; Figure 3 This is a schematic diagram of the structure of the fertilizer application component of this utility model after removing the outer shell; Figure 4 This is a schematic diagram of the structure of the fertilizer application component of this utility model after removing the outer shell and edge plate; Figure 5 This is a schematic diagram of the structure of the drive component described in this utility model.

[0017] As shown in the figure: 1. Base; 11. Mounting bracket; 12. Protective case; 2. Fertilizer application assembly, 21. Outer shell, 211. Liquid inlet, 212. Liquid outlet, 22. Converter plate, 221. First chamber, 222. Second chamber, 2221. Through hole, 23. Fertilizer dosage adjustment mechanism, 231. Bidirectional screw, 232. Drive plate, 233. Transmission rod, 234. Moving plate, 235. Bearing seat, 24. Edge plate, 241. Window; 3. Liquid storage cylinder; 4. Drive assembly, 41. Rotating shaft, 42. Transmission mechanism, 421. Rack, 422. Gear, 43. Pressure plate, 44. Pressure rod, 45. Fixing plate, 46. Elastic element. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] like Figures 1-2 As shown, this utility model provides a portable fertilizer applicator with adjustable fertilizer application rate, including a base 1, a fertilizer application component 2, a liquid storage cylinder 3, and a drive component 4. The fertilizer application component 2 includes a housing 21, a conversion disc 22, and a fertilizer application rate adjustment mechanism 23. The housing 21 is fixed to the base 1, and the upper and lower ends of the housing 21 are respectively formed with a liquid inlet 211 and a liquid outlet 212. The conversion disc 22 is disposed in the inner cavity of the housing 21, and the conversion disc 22 has a first cavity 221 and a second cavity 222 formed along its axial direction. The two second cavities 222 are distributed on both sides of the first cavity 221 and are close to the conversion disc 23. One side of the edge of the disk 22 is provided with a through hole 2221, which corresponds to the liquid inlet 211 and the liquid outlet 212. The middle section of the fertilizer adjustment mechanism 23 is located in the first cavity 221, and its two ends are respectively located in the two second cavities 222. The two ends of the fertilizer adjustment mechanism 23 can move simultaneously in the two second cavities 222 to synchronously adjust the space size of the two second cavities 222. The discharge end of the liquid storage cylinder 3 is connected to the liquid inlet 211. The drive assembly 4 is located on the base 1 and is connected to the conversion disk 22 so that the conversion disk 22 can rotate 180° and reset.

[0020] In use, the conversion disk 22 can be rotated 180° and reset by the drive component 4. The two second cavities 222 on the conversion disk 22 will then alternately connect with the inlet 211 and the outlet 212, so that the liquid fertilizer in the storage cylinder 3 can be applied to plants such as tobacco in turn through the two second cavities 222. On this basis, the fertilizer amount adjustment mechanism 23 can simultaneously adjust the size of the two second cavities 222. In this way, the user can flexibly change the volume of the second cavity 222 to control and adjust the amount of fertilizer liquid taken at one time, avoiding the over- or under-application that occurs with traditional manual estimation. This effectively improves the fertilizer utilization rate, reduces fertilizer waste, and reduces the environmental burden on soil and water, providing a scientific and controllable fertilization method for agricultural production.

[0021] In a specific implementation of this utility model, the base 1 includes a mounting frame 11 and a protective shell 12. The outer shell 21 and the drive component 4 are both fixed on the mounting frame 11. The protective shell 12 partially encloses the drive component 4 and is detachably connected to the mounting frame 11.

[0022] In specific implementation of this utility model, such as Figure 3 and Figure 4 As shown, the fertilizer adjustment mechanism 23 includes a bidirectional screw 231, a drive plate 232, a transmission rod 233, and a moving plate 234. The bidirectional screw 231 is disposed in the first cavity 221 and its two ends are rotatably connected to the inner wall of the first cavity 221. The drive plate 232 is disposed in the first cavity 221, and one end of each drive plate 232 has a threaded hole that mates with the bidirectional screw 231. The other end of each drive plate 232 is fixedly connected to one end of each transmission rod 233. The other ends of each transmission rod 233 extend into the two second cavities 222, and the other ends of each transmission rod 233 are fixedly connected to the two moving plates 234. The two ends of each moving plate 234 are slidably and sealingly connected to the inner wall of the two second cavities 222.

[0023] In this embodiment, the fertilizer adjustment mechanism 23 further includes bearing seats 235. Two bearing seats 235 are installed on the upper and lower sides of the first cavity 221, and the two ends of the bidirectional screw 231 are respectively rotatably disposed in the two bearing seats 235.

[0024] In this embodiment, the bidirectional screw 231 has a plurality of protrusions evenly arranged around its circumference in the middle part. The protrusions can prevent the user from slipping when rotating the bidirectional screw 231.

[0025] In the above technical solution, when the user manually rotates the bidirectional screw 231, the two drive plates 232 will move downward or upward simultaneously, which in turn will drive the transmission rod 233 to move, thereby causing the moving plate 234 to move up and down in its respective second cavity 222. In this way, the volume of the second cavity 222 can be changed.

[0026] It should be noted that, in order to ensure that the drive plate 232 does not shift when the bidirectional screw 231 stops rotating, the side wall of the drive plate 232 that contacts the first cavity 221 is made of frosted surface to increase the friction between the two.

[0027] In this embodiment, the fertilizer application component 2 further includes an edge disc 24. The two edge discs 24 are respectively disposed on the two sides of the conversion disc 22. The edge disc 24 on the side closer to the fertilizer adjustment mechanism 23 seals the two second cavities 222, while a window 241 for exposing the first cavity 221 is provided in the middle. The edge disc 24 on the side away from the fertilizer adjustment mechanism 23 is connected to the drive component 4.

[0028] In this embodiment, in order to ensure that the amount of fertilizer applied each time is consistent, the two second cavities 222 have the same size.

[0029] In this embodiment, the liquid storage cylinder 3 is used to store liquid fertilizer to be applied. One end of the liquid storage cylinder 3 is provided with an internal thread. A drain pipe is connected to the liquid inlet 211 and the liquid outlet 212 of the outer shell 21. One of the drain pipes is provided with an external thread for screwing into the side of the liquid storage cylinder 3 with the internal thread.

[0030] In specific implementation of this utility model, such as Figure 5 As shown, the drive assembly 4 includes a rotating shaft 41, a transmission mechanism 42, a pressure plate 43, a pressure rod 44, and a fixing plate 45. The fixing plate 45 is disposed on one side of the base 1. One end of the pressure rod 44 passes through the fixing plate 45 and is fixedly connected to one side of the pressure plate 43. The transmission mechanism 42 is fixed to the other side of the pressure plate 43. The transmission mechanism 42 is connected to the rotating shaft 41, and the other end of the rotating shaft 41 is connected to the conversion disk 22.

[0031] In this embodiment, the driving component 4 further includes an elastic element 46, the two ends of which are respectively connected to a set of opposite sides of the fixing plate 45 and the pressure plate 43.

[0032] In this embodiment, the transmission mechanism 42 includes a rack 421 and a gear 422. One end of the rack 421 is fixedly connected to the pressure plate 43, and the other end is arranged vertically along the base 1. The gear 422 meshes with the rack 421. One end of the rotating shaft 41 is installed in the center hole of the gear 422, and the other end of the rotating shaft 41 is connected to the conversion disk 22.

[0033] The working principle of the portable fertilizer applicator with adjustable fertilizer application rate provided by this utility model is as follows: In the initial state, the user can rotate the bidirectional screw 231 appropriately according to the actual amount of fertilizer to be released in a single operation, causing the two drive plates 232 to move closer or further apart, thereby adjusting the position of the moving plate 234 in the second cavity 222 to adjust the capacity of the second cavity 222. In the initial state, the elastic element 46 is in its original length. At this time, one of the second cavities 222 is connected to the liquid storage cylinder 3 to obtain a certain amount of fertilizer solution. The pressure plate 43 is pushed to its limit position by pressing down the pressure rod 44. At this time, the top of the pressure rod 44 is flush with the top of the liquid storage cylinder 3. The rack 421 drives the conversion disk 22 to rotate 180 degrees through the gear 422. The second cavity 222, which was originally connected to the liquid storage cylinder 3, rotates from the top of the conversion disk 22 to the bottom, and the liquid fertilizer is discharged from the outlet 212.

[0034] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A portable fertilizer applicator with adjustable fertilizer application rate, characterized in that, include: Base; A fertilizer application assembly includes a housing, a conversion disc, and a fertilizer dosage adjustment mechanism. The housing is fixed to a base, and an inlet and an outlet are formed at the upper and lower ends of the housing, respectively. The conversion disc is disposed in the inner cavity of the housing, and a first cavity and a second cavity are formed along its axial direction on the conversion disc. The two second cavities are distributed on both sides of the first cavity, and each of the two second cavities has a through hole on the side near the edge of the conversion disc. The through hole corresponds to the inlet and outlet. The middle section of the fertilizer dosage adjustment mechanism is disposed in the first cavity, and its two ends are respectively disposed in the two second cavities. The two ends of the fertilizer dosage adjustment mechanism can move simultaneously in the two second cavities to synchronously adjust the space size of the two second cavities. A liquid storage cylinder, the discharge end of which is connected to the liquid inlet; A drive assembly, mounted on the base, is connected to the conversion disk so that the conversion disk can rotate 180° and return to its original position.

2. The portable fertilizer applicator with adjustable fertilizer application rate according to claim 1, characterized in that, The fertilizer adjustment mechanism includes a bidirectional screw, a drive plate, a transmission rod, and a movable plate. The bidirectional screw is disposed in the first cavity and its two ends are rotatably connected to the inner wall of the first cavity. The drive plate is disposed in the first cavity, and one end of each drive plate has a threaded hole that mates with the bidirectional screw. The other ends of each drive plate are fixedly connected to one end of each of the two transmission rods. The other ends of each transmission rod extend into two second cavities and are fixedly connected to two movable plates. The two ends of each movable plate are slidably and sealingly connected to the inner wall of each of the two second cavities.

3. The portable fertilizer applicator with adjustable fertilizer application rate according to claim 2, characterized in that, The fertilizer adjustment mechanism also includes bearing seats, with two bearing seats installed on the upper and lower sides of the first cavity, and the two ends of the bidirectional screw are respectively rotatably disposed in the two bearing seats.

4. The portable fertilizer applicator with adjustable fertilizer application rate according to claim 3, characterized in that, The bidirectional screw has multiple protrusions evenly arranged around its circumference in the middle section.

5. The portable fertilizer applicator with adjustable fertilizer application rate according to claim 4, characterized in that, The fertilization assembly also includes two edge discs, which are respectively disposed on two sides of the conversion disc. The edge disc closer to the fertilizer adjustment mechanism seals the two second cavities, while a window is provided in the middle to expose the first cavity. The edge disc farther away from the fertilizer adjustment mechanism is connected to the drive assembly.

6. The portable fertilizer applicator with adjustable fertilizer application rate according to any one of claims 1 to 5, characterized in that, The two second cavities are the same size.

7. The portable fertilizer applicator with adjustable fertilizer application rate according to claim 1, characterized in that, The drive assembly includes a rotating shaft, a transmission mechanism, a pressure plate, a pressure rod, and a fixing plate. The fixing plate is disposed on one side of the base. One end of the pressure rod passes through the fixing plate and is fixedly connected to one side of the pressure plate. The transmission mechanism is fixed to the other side of the pressure plate. The transmission mechanism is connected to the rotating shaft, and the other end of the rotating shaft is connected to the conversion disc.

8. The portable fertilizer applicator with adjustable fertilizer application rate according to claim 7, characterized in that, The drive assembly also includes an elastic element, the two ends of which are respectively connected to a set of opposite sides of the fixing plate and the pressure plate.

9. The portable fertilizer applicator with adjustable fertilizer application rate according to claim 8, characterized in that, The transmission mechanism includes a rack and a gear. One end of the rack is fixedly connected to the pressure plate, and the other end is arranged vertically along the base. The gear meshes with the rack. One end of the rotating shaft is installed in the center hole of the gear, and the other end of the rotating shaft is connected to the conversion disc.

10. The portable fertilizer applicator with adjustable fertilizer application rate according to claim 1, characterized in that, The base includes a mounting bracket and a protective shell. The outer shell and the drive assembly are both fixed on the mounting bracket. The protective shell partially encloses the drive assembly and is detachably connected to the mounting bracket.

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