A rapid inter-row fertilization device for tobacco

By using a hand-push single-wheel design and a worm gear transmission-controlled dual-fertilizer head device, the problems of high labor intensity and uneven fertilization in traditional tobacco planting have been solved. This device enables efficient multi-ridge simultaneous fertilization in hilly areas and small plots, adapting to the needs of different ridge heights and widths.

CN224419363UActive Publication Date: 2026-06-30GUANGDONG TOBACCO RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG TOBACCO RES INST
Filing Date
2025-08-11
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In existing tobacco cultivation, traditional manual fertilization is labor-intensive and inefficient. Existing fertilization equipment is difficult to adapt to hilly and mountainous areas and small plots, and it cannot achieve simultaneous fertilization of multiple rows, making operation inconvenient.

Method used

Design a hand-push, single-wheel structure rapid fertilization device for tobacco ridges. It adopts a double fertilization head that can move within the soil furrow to achieve synchronous fertilization of two sets of soil ridges. The feeding is controlled and adjusted by a worm gear transmission to adapt to different ridge heights and widths, thereby improving fertilization efficiency.

Benefits of technology

It enables efficient and convenient multi-row simultaneous fertilization in hilly and mountainous areas and small plots, reducing the labor intensity of operators, improving the uniformity of fertilization, saving fertilizer, and adapting to different planting specifications.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of tobacco planting technology, and in particular to a rapid inter-row fertilization device for tobacco, comprising a frame and a storage box. The storage box is located on the upper side of the frame and is fixedly connected to the frame via a box support. A set of support legs equipped with wheels is located at the bottom right end of the frame, and a handle for support is welded to the left end of the frame. A crossbeam is fixedly installed at the bottom of the frame, with both ends of the crossbeam extending from both sides of the frame. Two sets of discharge pipes are located at the bottom of the storage box, and connecting rods are located at both ends of the crossbeam. Fertilizer heads are installed at the lower ends of the connecting rods, and the fertilizer heads are connected to the discharge pipes via a conveying hose. This device adopts a hand-push single-wheel design, which allows for movement within the furrow. It also features two fertilizer heads, enabling parallel and synchronous fertilization of two sets of ridges, improving fertilization efficiency and reducing labor intensity.
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Description

Technical Field

[0001] This utility model relates to the field of tobacco planting technology, and more specifically, to a rapid inter-row fertilization device for tobacco. Background Technology

[0002] In tobacco cultivation, organic fertilizer needs to be applied to the raised beds before transplanting the seedlings to provide basic nutrients for tobacco growth. Traditional fertilization methods mainly rely on manual spreading, which is not only labor-intensive and inefficient, but also results in poor uniformity of fertilization, easily leading to localized over- or under-fertilization, which affects the later growth of tobacco.

[0003] Existing fertilization devices are mostly large-scale machinery, suitable for large plains, but difficult to adapt to the hilly or small plots commonly used in tobacco cultivation. Moreover, existing small fertilization devices are mostly single-ridge fertilization devices, which cannot achieve simultaneous fertilization of multiple ridges, and the fertilization efficiency still needs to be improved. In addition, existing devices mostly adopt a double-wheel design, which requires the user to straddle the ridge to fertilize, and the operator needs to be in a side position of the device, which makes walking difficult and operation very inconvenient.

[0004] Therefore, there is an urgent need for a device that is suitable for manual movement, can adapt to the structure of soil ridges, and can achieve simultaneous and precise fertilization of multiple ridges, in order to solve the problems existing in the current technology. Utility Model Content

[0005] To address the shortcomings of existing methods, the purpose of this utility model is to provide a rapid inter-row fertilization device for tobacco. This device adopts a hand-push single-wheel design, which can be adapted to move within the soil ditch. It also has two fertilization heads, which can realize parallel and synchronous fertilization of two sets of soil ridges, thereby improving fertilization efficiency and reducing labor intensity.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A rapid inter-row fertilization device for tobacco includes a frame and a storage box. The storage box is located on the upper side of the frame and is fixedly connected to the frame via a box support. A support leg equipped with wheels is located at the bottom right end of the frame. A handle for support is welded to the left end of the frame. A crossbeam is fixed at the bottom of the frame, with both ends of the crossbeam extending from both sides of the frame. Two sets of discharge pipes are located at the bottom of the storage box. Connecting support rods are located at both ends of the crossbeams. Fertilizer heads are installed at the lower ends of the connecting support rods and are connected to the discharge pipes via a conveying hose.

[0008] Furthermore, the frame is a triangular structure, with the traveling wheels located at the bottom right tip of the frame. Two sets of L-shaped support frames are symmetrically arranged at the bottom left end of the frame, and the height of the support frames is less than the height of the outriggers.

[0009] Furthermore, the connecting support rod is inserted into the sleeve and is adjustably connected to it. A locking bolt is threaded through the annular surface of the sleeve, and the inner end face of the locking bolt abuts against the connecting support rod.

[0010] Furthermore, the sleeve is fixed to the left side of the square sliding sleeve, the square sliding sleeve is adjustablely fitted onto the crossbeam, and an adjusting bolt is threaded through the upper side of the inside of the square sliding sleeve, the bottom end of the adjusting bolt abutting against the crossbeam.

[0011] Furthermore, the bottom of the storage box has an arc-shaped structure, and a matching feeding adjustment cylinder is installed inside. The two ends of the feeding adjustment cylinder are rotatably connected to the storage box through short shafts. A worm gear is installed on the right end of the feeding adjustment cylinder through a short shaft. A worm is meshed on the upper side of the worm gear. The worm is rotatably connected to the storage box through a bearing seat. A drive shaft is connected to the left end of the worm. The left end of the drive shaft extends to the handle position and is fixedly connected to the handle through a bearing seat. A handwheel is installed on the left end of the drive shaft.

[0012] Furthermore, the feeding regulating cylinder has a feeding slot on the upper side of its annular surface and a discharging slot on the lower side of its annular surface. The width of the feeding slot is greater than the width of the discharging slot, and the width of the discharging slot is greater than the diameter of the discharging pipe.

[0013] Furthermore, the height of the fertilizer applicator is 30-40cm, and the distance between the two sets of fertilizer applicators is 80-130cm.

[0014] Working principle: In actual use, first add the organic fertilizer to be applied into the storage box (at this time, the discharge chute on the feeding regulating cylinder is offset from the discharge pipe, and the discharge pipe is blocked) to ensure that there are no large lumps of fertilizer (to avoid clogging the discharge pipe); then adjust the fertilizer head according to the actual height and spacing of the tobacco ridge: loosen the locking bolt, raise and lower the connecting support rod to the appropriate height and then lock it to complete the fertilizer head height adjustment; loosen the adjusting bolt, slide the square sliding sleeve to adjust the distance between the two sets of fertilizer heads and then lock it to ensure that the fertilizer head can be aligned with the top surface of the tobacco ridge.

[0015] The operator then grips the handle and pushes the device to the starting position of the ridge to be fertilized, positioning the wheels in the furrow between the ridges and aligning the two fertilizer heads with the ridge surfaces on either side. Turning the handwheel on the handle activates the feed regulating cylinder via the drive shaft, worm gear, and worm wheel, aligning the feed trough with the discharge pipe at the bottom of the storage tank. The storage tank is connected to the discharge pipe, and the fertilizer begins to fall. The device is then pushed along the furrow between the ridges, and the fertilizer is applied to the ridges via the feed hose from the fertilizer heads.

[0016] When it is necessary to turn around and replace the soil ridge or temporarily stop fertilization, turn the handwheel in the opposite direction to rotate the feed regulating cylinder to the position of blocking the discharge pipe and stop the fertilizer discharge; after moving the device to the new ridge position, turn the handwheel again to open the feed channel and repeat the fertilization operation.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This utility model adopts a hand-push single-wheel design, which can be adapted to move in the soil ditch and is suitable for hilly areas and small plots. At the same time, it adopts a double-ridge synchronous fertilization design, with two sets of fertilization heads corresponding to the soil ridges on both sides. Compared with single-ridge fertilization, the efficiency is doubled, reducing repetitive labor for operators and improving fertilization efficiency.

[0019] 2. The height of the fertilizer head in this utility model can be adjusted by the sleeve and locking bolt (range 30-40cm) to adapt to different tobacco ridge height requirements; the horizontal spacing of the fertilizer head can be adjusted by the square sliding sleeve and adjusting bolt (range 80-130cm) to match the ridge width of different planting specifications, and has strong versatility.

[0020] 3. In this utility model, the feeding adjustment cylinder is controlled to rotate by a worm gear transmission. The feeding adjustment cylinder can rotate at the bottom of the storage box to adjust the angle position, which can block the discharge port at the bottom of the storage box. This facilitates the control of the connection between the storage box and the discharge pipe, and makes it easy to block the discharge pipe when the device turns to change the soil ridge, preventing fertilizer from continuing to be discharged from the fertilizer head, thus reducing fertilizer waste and saving fertilizer. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a front view of the present invention.

[0023] Figure 3 This is the right view of the present invention.

[0024] Figure 4 This is a partial structural schematic diagram of the present invention.

[0025] Figure 5 This is a schematic diagram of the structure of the storage box in this utility model.

[0026] Figure 6 This is a schematic diagram of the internal structure of the storage bin in this utility model.

[0027] Figure 7 This is a right-side sectional view of the storage bin in this utility model.

[0028] Figure 8 This is a schematic diagram showing the usage state of the device in this utility model.

[0029] In the diagram: 1. Storage bin; 2. Box support; 3. Handle; 4. Support frame; 5. Frame; 6. Crossbeam; 7. Fertilizer applicator; 8. Wheels; 9. Conveying hose; 10. Handwheel; 11. Drive shaft; 12. Connecting support rod; 13. Locking bolt; 14. Sleeve; 15. Square sliding sleeve; 16. Adjusting bolt; 17. Worm gear; 18. Worm; 19. Discharge adjusting cylinder; 191. Feed trough; 192. Discharge trough; 20. Discharge pipe. Detailed Implementation

[0030] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0031] Example:

[0032] like Figures 1 to 7 As shown, this embodiment provides a rapid inter-row fertilization device for tobacco, including a frame 5 and a storage box 1. The storage box 1 is located on the upper side of the frame 5 for storing organic fertilizer to be applied, providing raw material reserves for fertilization. The storage box 1 is fixedly connected to the frame 5 through a box support 2 to ensure the stability of the storage box 1. A support leg equipped with a single wheel 8 is located at the bottom right end of the frame 5, which facilitates the movement of the device in the furrows between soil ridges. A handle 3 for support is welded to the left end of the frame 5 for the operator to support and control the movement direction of the device. The bottom of the frame 5 is fixed with... There is a crossbeam 6, which serves as the lateral support for the fertilizer head 7. Its two ends extend from both sides of the frame 5, providing an installation foundation for double-ridge fertilization, so that the two sets of fertilizer heads 7 can correspond to the soil ridges on both sides respectively, realizing simultaneous fertilization of the double ridges. The bottom of the storage box 1 is equipped with two sets of discharge pipes 20. Both ends of the crossbeam 6 are equipped with connecting rods 12. The fertilizer head 7 is installed at the lower end of the connecting rod 12, which is used to spread organic fertilizer onto the soil ridge. The fertilizer head 7 is connected to the discharge pipe 20 through the conveying hose 9. The conveying hose 9 can flexibly connect the discharge pipe 20 and the fertilizer head 7, and adapt to the adjustment of the height and spacing of the fertilizer head 7.

[0033] In this embodiment, the frame 5 has a triangular structure. The traveling wheel 8 is located at the bottom right tip of the frame 5. Two sets of L-shaped support frames 4 are symmetrically arranged at the bottom left end of the frame 5. The height of the support frames 4 is less than the height of the outriggers. The two sets of support frames 4, together with the traveling wheel 8, form a three-point support layout, creating a stable mechanical structure. The L-shaped support frames 4 provide support when parked, preventing the device from tipping over, while the low height design does not affect the passage of the traveling wheel 8.

[0034] In this embodiment, the connecting support rod 12 is inserted into the sleeve 14 and is adjustablely connected to it. A locking bolt 13 is threaded through the annular surface of the sleeve 14, and the inner end face of the locking bolt 13 abuts against the connecting support rod 12. The sleeve 14 and the locking bolt 13 facilitate the adjustment of the position of the connecting support rod 12, thereby achieving the height adjustment of the fertilizer head 7 to adapt to different ridge height requirements.

[0035] In this embodiment, the sleeve 14 is fixed to the left side of the square sliding sleeve 15, which is adjustablely fitted onto the crossbeam 6. An adjusting bolt 16 is threaded through the upper side of the inside of the square sliding sleeve 15, and the bottom end of the adjusting bolt 16 abuts against the crossbeam 6. The square sliding sleeve 15, in conjunction with the adjusting bolt 16, facilitates the horizontal movement and adjustment of the fertilizer head 7, allowing adjustment of the spacing between the two sets of fertilizer heads 7 to adapt to different ridge width requirements and match different planting specifications.

[0036] In this embodiment, the bottom of the storage box 1 is an arc-shaped structure, which facilitates the fertilizer to flow naturally into the discharge pipe 20 by gravity. The discharge regulating cylinder 19 is fitted inside the storage box 1. The two ends of the discharge regulating cylinder 19 are rotatably connected to the storage box 1 through short shafts. The right end of the discharge regulating cylinder 19 is fitted with a worm gear 17 through a short shaft. The upper side of the worm gear 17 is meshed with a worm 18. The worm 18 is rotatably connected to the storage box 1 through a bearing seat. The left end of the worm 18 is connected to a drive shaft 11. The left end of the drive shaft 11 extends to the handle 3 and is fixedly connected to the handle 3 through a bearing seat. A handwheel 10 is installed on the left end of the drive shaft 11.

[0037] The feeding adjustment cylinder 19 can rotate at the bottom of the storage box 1 to adjust the angle position, and can block the discharge port at the bottom of the storage box 1, which facilitates the control of the connection between the storage box 1 and the discharge pipe 20. It is also convenient to block the discharge pipe 20 when the device turns to change the soil ridge, so as to prevent fertilizer from continuing to be discharged from the fertilizer head 7, thereby reducing fertilizer waste and saving fertilizer.

[0038] When it is necessary to stop applying fertilizer, turn the handwheel 10 to drive the transmission shaft 11 to rotate. The transmission shaft 11 drives the worm gear 18 to rotate. The worm gear 18 meshes with the worm wheel 17 to drive the transmission, thereby causing the feeding adjustment cylinder 19 to rotate around the short axis. Adjust the angle position of the feeding adjustment cylinder 19 and block the discharge pipe 20 through the feeding adjustment cylinder 19.

[0039] In this embodiment, the feeding regulating cylinder 19 has a feeding slot 191 on the upper side of its annular surface, which facilitates the fertilizer in the storage box 1 to enter the feeding regulating cylinder 19. The feeding slot 192 has a discharge slot 192 on the lower side of its annular surface, which facilitates the fertilizer to enter the discharge pipe 20 through the discharge slot 192. The width of the feeding slot 191 is greater than the width of the discharge slot 192, and the width of the discharge slot 192 is greater than the diameter of the discharge pipe 20.

[0040] In this embodiment, the height of the fertilizer applicator 7 ranges from 30 to 40 cm, and the distance between the two sets of fertilizer applicators 7 ranges from 80 to 130 cm. By adopting the above technical solution, the fertilizer application height and spacing of the device can be adjusted to adapt to different soil ridge requirements and match different planting specifications.

[0041] The working principle of this rapid inter-row fertilization device for tobacco:

[0042] like Figure 8 As shown, in actual use, first add the organic fertilizer to be applied into the storage box 1. At this time, the outlet 192 on the feeding regulating cylinder 19 is offset from the outlet pipe 20, and the outlet pipe 20 is blocked to ensure that there are no large lumps of fertilizer to avoid clogging the outlet pipe 20. Then, adjust the fertilizer head 7 according to the actual height and spacing of the tobacco ridge: loosen the locking bolt 13, raise and lower the connecting support rod 12 to the appropriate height and then lock it to complete the height adjustment of the fertilizer head 7; loosen the adjusting bolt 16, slide the square sliding sleeve 15 to adjust the spacing between the two sets of fertilizer heads 7 and then lock it to ensure that the fertilizer head 7 can be aligned with the top surface of the tobacco ridge.

[0043] Then, the operator holds the handle 3 and pushes the device to the starting position of the soil ridge to be fertilized, so that the traveling wheels 8 are in the soil furrow between the soil ridges, and the two sets of fertilizer heads 7 are aligned with the ridge surfaces on both sides. Turning the handwheel 10 at the handle 3 drives the material adjustment cylinder 19 to rotate through the transmission shaft 11, worm gear 18, and worm wheel 17, so that the inlet 191 is aligned with the bottom discharge pipe 20 of the storage box 1. The storage box 1 is connected to the discharge pipe 20, and at this time, the fertilizer begins to fall. Then, the device is pushed to move along the furrow between the ridges, and the fertilizer is spread onto the ridge from the fertilizer heads 7 through the conveying hose 9.

[0044] When it is necessary to turn around and replace the soil ridge or temporarily stop fertilization, turn the handwheel 10 in the opposite direction to rotate the discharge regulating cylinder 19 to the position of blocking the discharge pipe 20 and stop the fertilizer discharge; after moving the device to the new ridge position, turn the handwheel 10 again to open the discharge channel and repeat the fertilization operation.

[0045] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A rapid inter-row fertilization device for tobacco, comprising a frame (5) and a storage bin (1), characterized in that: The upper side of the frame (5) is provided with a storage box (1), which is fixedly connected to the frame (5) through a box bracket (2). The bottom right end of the frame (5) is provided with a support leg equipped with a walking wheel (8). The left end of the frame (5) is welded with a handle (3) for support. The bottom of the frame (5) is fixed with a crossbeam (6), and the two ends of the crossbeam (6) extend from both sides of the frame (5). The bottom of the storage box (1) is provided with two sets of discharge pipes (20). The two ends of the crossbeam (6) are provided with connecting rods (12). The lower end of the connecting rod (12) is equipped with a fertilizer head (7). The fertilizer head (7) is connected to the discharge pipe (20) through a conveying hose (9).

2. The rapid inter-row fertilization device for tobacco according to claim 1, characterized in that: The frame (5) is a triangular structure. The walking wheel (8) is located at the bottom of the right tip of the frame (5). Two sets of L-shaped support frames (4) are symmetrically provided at the bottom of the left end of the frame (5). The height of the support frame (4) is less than the height of the legs.

3. The rapid inter-row fertilization device for tobacco according to claim 1, characterized in that: The connecting rod (12) is inserted into the sleeve (14) and is adjustablely connected to it. A locking bolt (13) is threaded through the annular surface of the sleeve (14), and the inner end face of the locking bolt (13) is in contact with the connecting rod (12).

4. The rapid inter-row fertilization device for tobacco according to claim 3, characterized in that: The sleeve (14) is fixed on the left side of the square sliding sleeve (15). The square sliding sleeve (15) is adjustablely fitted on the crossbeam (6). An adjusting bolt (16) is threaded through the upper side of the inside of the square sliding sleeve (15). The bottom end of the adjusting bolt (16) is in contact with the crossbeam (6).

5. The rapid inter-row fertilization device for tobacco according to claim 1, characterized in that: The bottom of the storage box (1) is an arc-shaped structure, and a feeding adjustment cylinder (19) is fitted inside it. The two ends of the feeding adjustment cylinder (19) are rotatably connected to the storage box (1) through short shafts. The right end of the feeding adjustment cylinder (19) is fitted with a worm gear (17) through a short shaft. The upper side of the worm gear (17) is meshed with a worm (18). The worm (18) is rotatably connected to the storage box (1) through a bearing seat. The left end of the worm (18) is connected to a transmission shaft (11). The left end of the transmission shaft (11) extends to the position of the handle (3) and is fixedly connected to the handle (3) through a bearing seat. A handwheel (10) is installed on the left end of the transmission shaft (11).

6. The rapid inter-row fertilization device for tobacco according to claim 5, characterized in that: The feeding regulating cylinder (19) has a feeding slot (191) on the upper side of its ring surface and a discharge slot (192) on the lower side of its ring surface. The width of the feeding slot (191) is greater than the width of the discharge slot (192), and the width of the discharge slot (192) is greater than the diameter of the discharge pipe (20).

7. The rapid inter-row fertilization device for tobacco according to claim 4, characterized in that: The height of the fertilizer head (7) is 30-40cm, and the distance between the two sets of fertilizer heads (7) is 80-130cm.