A uniform fertilization device for agricultural planting

Abstract

This application relates to the field of fertilization equipment technology and discloses an agricultural planting uniform fertilization device, including a trolley. A material box is fixedly installed on the top of the trolley. The material box has a liquid fertilizer chamber and a solid fertilizer chamber arranged sequentially from top to bottom. A delivery pump is fixedly installed on the right outer wall of the material box. A suction pipe is fixedly connected to the suction end of the delivery pump, with one end extending into the liquid fertilizer chamber. A delivery hose is fixedly connected to the discharge end of the delivery pump. A feed pipe is fixedly installed on the right side of the material box, with its left end connected to the solid fertilizer chamber and its right end fixedly connected to a feed cylinder. This application has the following advantages and effects: it can complete the application of liquid fertilizer and solid fertilizer separately without changing the equipment, avoiding the trouble of frequent replacements required by traditional single-function fertilization devices, and greatly improving the flexibility and efficiency of fertilization operations.

Description

Technical Field

[0001] This application relates to the field of fertilization equipment technology, and in particular to a uniform fertilization device for agricultural planting. Background Technology

[0002] Fertilization refers to agricultural techniques that involve applying fertilizer to the soil or spraying it on plants to provide them with the nutrients they need and to maintain and improve soil fertility. The main purposes of fertilization are to increase crop yield, improve crop quality, enrich the soil, and enhance economic benefits. In the agricultural planting process, fertilization is a crucial step in ensuring crop growth and increasing yield.

[0003] In existing technologies, fertilizers applied to crops are generally divided into two types: solid fertilizers and liquid fertilizers. However, most uniform fertilization devices commonly used in agricultural planting are designed for a single function, meaning they can only apply either liquid or solid fertilizers individually. In small farmlands (such as family vegetable gardens, greenhouses) or orchards, crops often require "alternating application of solid and liquid fertilizers." For example, liquid fertilizer is applied during the seedling stage to promote root absorption, while solid fertilizer is applied during the growing season for long-term fertilization. However, due to the limitations of existing single-function uniform fertilization devices, farmers need to equip themselves with two types of fertilization equipment simultaneously. This not only increases the cost of purchasing equipment but also requires frequent handling and switching of equipment during the fertilization process, resulting in low efficiency in fertilization operations.

[0004] Therefore, we propose an agricultural uniform fertilization device to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide an agricultural uniform fertilization device that can apply liquid fertilizer and solid fertilizer separately without changing the equipment, avoiding the trouble of frequent replacement of traditional single-function fertilization devices, and greatly improving the flexibility and efficiency of fertilization operations.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution: a uniform fertilization device for agricultural planting, comprising a trolley, a material box fixedly installed on the top of the trolley, a liquid fertilizer chamber and a solid fertilizer chamber sequentially opened from top to bottom inside the material box, a delivery pump fixedly installed on the right outer wall of the material box, a suction pipe fixedly connected to the suction end of the delivery pump, one end of the suction pipe extending into the liquid fertilizer chamber, a delivery hose fixedly connected to the discharge end of the delivery pump, a delivery pipe fixedly installed on the right side of the material box, and the left end of the delivery pipe connected to the solid fertilizer chamber. The feed pipe is connected to a feed cylinder at its right end. A motor is fixedly installed on the right side of the feed cylinder. The output shaft of the motor extends into the feed cylinder and is fixedly installed with a spiral feed shaft. The left end of the spiral feed shaft passes through the feed pipe. A vertical pipe is fixedly connected to the bottom of the feed cylinder. A liquid inlet pipe is fixedly connected to the left side of the vertical pipe. One end of the liquid inlet hose is fixedly connected to the left end of the liquid inlet pipe. A lifting pipe is slidably installed inside the vertical pipe. The bottom end of the lifting pipe extends outside the vertical pipe. A plug is provided at the bottom end of the lifting pipe. Multiple evenly distributed oblique outlet holes are opened on the plug.

[0007] By adopting the above technical solution, the delivery pump is used to pump the liquid fertilizer in the liquid fertilizer chamber, so that the liquid fertilizer is discharged into the soil from multiple liquid outlet oblique holes, thus applying liquid fertilizer to crops. The motor is used to control the rotation of the spiral conveying shaft, so that solid fertilizer is discharged into the soil from the bottom of the lifting pipe, thus applying solid fertilizer to crops.

[0008] A further provision of this application is as follows: a fixing lug 1 located below the inlet pipe is fixedly installed on the left outer wall of the vertical pipe, a hydraulic cylinder 1 is fixedly installed at the bottom of the fixing lug 1, a fixing disc is fixedly sleeved on the outer wall of the lifting pipe, the output shaft end of the hydraulic cylinder 1 is fixedly connected to the top of the fixing disc, and a wear-resistant sealing ring is fixedly installed on the top outer wall of the lifting pipe, the outer ring of the wear-resistant sealing ring slidingly sealingly engaging with the inner wall of the vertical pipe.

[0009] By adopting the above technical solution, the hydraulic cylinder is used to control the vertical lifting of the lifting pipe, so as to insert the plug into the soil or pull it out of the soil. The wear-resistant sealing ring can prevent liquid fertilizer from flowing out from the gap between the vertical pipe and the lifting pipe.

[0010] A further feature of this application is that a vertical guide rod is fixedly installed on the top of the fixed plate, located on the right side of the vertical tube, a guide block is fixedly installed on the outer wall of the right side of the vertical tube, the guide block is slidably sleeved on the vertical guide rod, and a stop block is fixedly installed at the top of the vertical guide rod.

[0011] By adopting the above technical solution, it is possible to ensure that the lifting pipe moves smoothly and steadily in the vertical direction.

[0012] A further configuration of this application is as follows: the plug includes a frustum-shaped middle portion, a conical bottom, and a conical top. The diameter of the frustum-shaped middle portion increases sequentially from top to bottom. The top of the frustum-shaped middle portion abuts against the bottom surface of the lifting tube. The conical bottom is fixedly connected to the bottom of the frustum-shaped middle portion. The diameter of the conical bottom decreases sequentially from top to bottom. The conical top is fixedly connected to the top of the frustum-shaped middle portion. The conical top extends into the lifting tube. The diameter of the conical top increases sequentially from top to bottom. The frustum-shaped middle portion, the conical bottom, and the conical top are integrally cast.

[0013] By adopting the above technical solution, the truncated cone-shaped middle part is used to block the bottom opening of the lifting pipe, the conical bottom facilitates the smooth insertion of the plug into the soil, and the conical top prevents solid fertilizer from accumulating on the top of the truncated cone-shaped middle part.

[0014] A further provision of this application is that the top diameter of the frustum-shaped middle section is smaller than the outer diameter of the lifting tube, and the top diameter of the frustum-shaped middle section is larger than the inner diameter of the lifting tube.

[0015] By adopting the above technical solution, the effectiveness of blocking the opening at the bottom of the lifting pipe can be ensured.

[0016] A further feature of this application is that a second fixing lug located below the fixing plate is fixedly installed on the left outer wall of the lifting tube, a second hydraulic cylinder is fixedly installed at the bottom of the second fixing lug, a connecting rod is fixedly installed at the output shaft end of the second hydraulic cylinder, and the bottom end of the connecting rod is fixedly connected to the top of the middle part of the frustum shape.

[0017] By adopting the above technical solution, the hydraulic cylinder 2 is used to control the vertical lifting and lowering of the plug, so as to remove the obstruction of the bottom end of the lifting pipe and allow the solid fertilizer to flow out smoothly from the bottom opening of the lifting pipe.

[0018] A further provision of this application is that: a second vertical guide rod located on the right side of the lifting tube is fixedly installed at the top of the middle part of the frustum-shaped structure; a second guide block is fixedly installed on the outer right side of the lifting tube; the second guide block is slidably sleeved on the second vertical guide rod; and a second stop block is fixedly installed at the top of the second vertical guide rod.

[0019] By adopting the above technical solution, it can be ensured that the plug can move smoothly and steadily in the vertical direction.

[0020] A further provision of this application is that a support frame is fixedly installed on the right side wall of the trolley, and the top of the support frame is fixedly connected to the outer wall of the conveying pipe.

[0021] By adopting the above technical solution, the stability of the material conveying pipe can be enhanced.

[0022] A further feature of this application is that: a liquid filling hole is provided on the top inner wall of the liquid fertilizer chamber, and an end cap is threadedly installed in the liquid filling hole; an inclined feeding pipe is fixedly installed on the left side of the material box, the bottom end of the feeding pipe extends into the solid fertilizer chamber, and an end cap is threadedly installed on the top end of the feeding pipe; an observation port is provided on the front inner wall of the liquid fertilizer chamber, and an observation mirror is fixedly installed in the observation port; an observation port is provided on the front inner wall of the solid fertilizer chamber, and an observation mirror is fixedly installed in the observation port; and the bottom inner wall of the solid fertilizer chamber has an inclined surface structure.

[0023] By adopting the above technical solution, it is convenient to pour liquid fertilizer into the liquid fertilizer chamber, convenient to add solid fertilizer into the solid fertilizer chamber, convenient to observe the amount of liquid fertilizer, and convenient to observe the amount of solid fertilizer.

[0024] A further feature of this application is that a power supply box is fixedly installed on the top of the trolley, and a battery pack is fixedly installed inside the power supply box. The delivery pump, motor, hydraulic cylinder one, and hydraulic cylinder two are all electrically connected to the battery pack.

[0025] By adopting the above technical solution, the battery pack is used to supply power to the delivery pump, motor, hydraulic cylinder one, and hydraulic cylinder two respectively.

[0026] This application includes at least one of the following beneficial technical effects:

[0027] This application, through the coordinated action of a liquid fertilizer chamber, a solid fertilizer chamber, a delivery pump, a suction pipe, a delivery hose, a feed pipe, a feed cylinder, a motor, a spiral feed shaft, a vertical pipe, a liquid inlet pipe, a lifting pipe, a plug, a hydraulic cylinder one, and a hydraulic cylinder two, enables the application of liquid fertilizer and solid fertilizer separately without changing equipment. This avoids the inconvenience of frequent replacements required by traditional single-function fertilizer application devices, and greatly improves the flexibility and efficiency of fertilizer application operations. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram from the first perspective of this embodiment.

[0029] Figure 2 This is a three-dimensional structural diagram from the second perspective of this embodiment.

[0030] Figure 3 This is a front view sectional three-dimensional structural schematic diagram of this embodiment.

[0031] Figure 4 yes Figure 3 A magnified structural diagram of part A in the middle.

[0032] Figure 5 This is a 3D structural diagram of the plug.

[0033] In the diagram: 1. Trolley; 2. Feed hopper; 3. Liquid fertilizer chamber; 4. Solid fertilizer chamber; 5. Conveyor pump; 6. Suction pipe; 7. Infusion hose; 8. Feed pipe; 9. Feed cylinder; 10. Motor; 11. Spiral feed shaft; 12. Vertical pipe; 13. Inlet pipe; 14. Lifting pipe; 15. Plug; 151. Frustum-shaped middle section; 152. Conical bottom; 153. Conical top; 16. Slanted outlet hole; 17. Solid fertilizer chamber. 18. Fixed Ear 1; 19. Hydraulic Cylinder 1; 20. Fixed Plate; 21. Fixed Ear 2; 22. Hydraulic Cylinder 2; 23. Connecting Rod; 24. Vertical Guide Rod 1; 25. Guide Block 1; 26. Wear-resistant Sealing Ring; 27. Vertical Guide Rod 2; 28. Guide Block 2; 29. ​​Support Frame; 30. End Cap 1; 31. Feeding Pipe; 32. End Cap 2; 33. Observation Glass 1; 34. Observation Glass 2; 35. Power Supply Box; 36. Battery Pack. Detailed Implementation

[0034] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0035] See Figures 1-5This application provides an agricultural uniform fertilization device, including a cart 1. A material box 2 is fixedly installed on the top of the cart 1. The material box 2 has a liquid fertilizer chamber 3 and a solid fertilizer chamber 4 arranged sequentially from top to bottom. The liquid fertilizer chamber 3 is used to hold liquid fertilizer, and the solid fertilizer chamber 4 is used to hold solid fertilizer. A delivery pump 5 is fixedly installed on the right outer wall of the material box 2. A suction pipe 6 is fixedly connected to the suction end of the delivery pump 5. One end of the suction pipe 6 extends into the liquid fertilizer chamber 3, and a delivery hose is fixedly connected to the discharge end of the delivery pump 5. 7. A conveying pipe 8 is fixedly installed on the right side of the material box 2. The left end of the conveying pipe 8 is connected to the solid fertilizer chamber 4. The right end of the conveying pipe 8 is fixedly connected to the feed cylinder 9. A motor 10 is fixedly installed on the right side of the feed cylinder 9. The output shaft of the motor 10 extends into the feed cylinder 9 and a spiral conveying shaft 11 is fixedly installed thereon. The left end of the spiral conveying shaft 11 passes through the conveying pipe 8. A vertical pipe 12 is fixedly connected to the bottom of the feed cylinder 9. A liquid inlet pipe 13 is fixedly connected to the left side of the vertical pipe 12. One end of the liquid inlet hose 7 is connected to the liquid inlet pipe 13. The left end is fixedly connected, and a lifting pipe 14 is slidably installed inside the vertical pipe 12. The bottom end of the lifting pipe 14 extends outside the vertical pipe 12, and a plug 15 is provided at the bottom end of the lifting pipe 14. The plug 15 has multiple evenly distributed liquid outlet oblique holes 16. The delivery pump 5 is used to extract the liquid fertilizer in the liquid fertilizer chamber 3 and deliver the liquid fertilizer to the vertical pipe 12. Finally, the liquid fertilizer is discharged into the soil from the multiple liquid outlet oblique holes 16, so that liquid fertilizer can be applied to crops. The motor 10 is used to control the rotation of the spiral conveying shaft 11. By utilizing the rotation of the spiral conveying shaft 11, the solid fertilizer in the solid fertilizer chamber 4 can be transported to the vertical pipe 12, and finally the solid fertilizer is discharged from the bottom of the lifting pipe 14 into the soil. This allows solid fertilizer to be applied to crops, thus enabling the application of liquid fertilizer and solid fertilizer separately without changing equipment. This avoids the trouble of frequent replacements required by traditional single-function fertilization devices, greatly improving the flexibility and efficiency of fertilization operations. It is especially suitable for scenarios of "alternating application of solid and liquid fertilizers" in small-area farmland or orchards.

[0036] In this embodiment, a fixing lug 17 located below the liquid inlet pipe 13 is fixedly installed on the left outer wall of the vertical pipe 12. A hydraulic cylinder 18 is fixedly installed at the bottom of the fixing lug 17. A fixing plate 19 is fixedly sleeved on the outer wall of the lifting pipe 14. The output shaft end of the hydraulic cylinder 18 is fixedly connected to the top of the fixing plate 19. A wear-resistant sealing ring 25 is fixedly installed on the top outer wall of the lifting pipe 14. The outer ring of the wear-resistant sealing ring 25 slides and seals with the inner wall of the vertical pipe 12. By utilizing the telescoping characteristic of the hydraulic cylinder 18, the vertical lifting of the lifting pipe 14 can be controlled, so that the plug 15 follows the lifting, making it easy to insert or pull the plug 15 into the soil. The design of the wear-resistant sealing ring 25 can prevent liquid fertilizer from flowing out from the gap between the vertical pipe 12 and the lifting pipe 14.

[0037] In this embodiment, a vertical guide rod 23 located on the right side of the vertical tube 12 is fixedly installed on the top of the fixed plate 19. A guide block 24 is fixedly installed on the outer right side of the vertical tube 12. The guide block 24 is slidably sleeved on the vertical guide rod 23. A stop block is fixedly installed at the top of the vertical guide rod 23. The sliding connection between the guide block 24 and the vertical guide rod 23 guides the movement direction of the lifting tube 14, ensuring that the lifting tube 14 moves smoothly and vertically. The stop block is used to block and limit the descent stroke of the lifting tube 14.

[0038] In this embodiment, the plug 15 includes a frustum-shaped middle portion 151, a conical bottom 152, and a conical top 153. The diameter of the frustum-shaped middle portion 151 increases sequentially from top to bottom. The top of the frustum-shaped middle portion 151 abuts against the bottom surface of the lifting tube 14. The conical bottom 152 is fixedly connected to the bottom of the frustum-shaped middle portion 151. The diameter of the conical bottom 152 decreases sequentially from top to bottom. The conical top 153 is fixedly connected to the top of the frustum-shaped middle portion 151. The conical top 153 extends into the lifting tube 14. The diameter of the conical top 153 increases sequentially from top to bottom. The frustum-shaped middle portion 151, the conical bottom 152, and the conical top 153 are integrally cast. The frustum-shaped middle portion 151 is used to cover the bottom opening of the lifting tube 14. The conical bottom 152 facilitates the smooth insertion of the plug 15 into the soil. The conical top 153 prevents solid fertilizer from accumulating on the top of the frustum-shaped middle portion 151.

[0039] In this embodiment, the top diameter of the frustum-shaped middle part 151 is smaller than the outer diameter of the lifting tube 14, and the top diameter of the frustum-shaped middle part 151 is larger than the inner diameter of the lifting tube 14, ensuring the effectiveness of blocking the bottom opening of the lifting tube 14.

[0040] In this embodiment, a second fixing lug 20 located below the fixing plate 19 is fixedly installed on the left outer wall of the lifting pipe 14. A second hydraulic cylinder 21 is fixedly installed at the bottom of the second fixing lug 20. A connecting rod 22 is fixedly installed at the output shaft end of the second hydraulic cylinder 21. The bottom end of the connecting rod 22 is fixedly connected to the top of the frustum-shaped middle part 151. Utilizing the telescopic characteristics of the second hydraulic cylinder 21, the plug 15 can be controlled to rise and fall vertically. Thus, when applying solid fertilizer, the plug 15 can be inserted downwards into a deeper part of the soil to remove the obstruction of the bottom end of the lifting pipe 14, thereby allowing the solid fertilizer to flow smoothly out from the bottom opening of the lifting pipe 14.

[0041] In this embodiment, a vertical guide rod 26 located on the right side of the lifting tube 14 is fixedly installed on the top of the truncated cone-shaped middle part 151. A guide block 27 is fixedly installed on the outer right side of the lifting tube 14. The guide block 27 is slidably sleeved on the vertical guide rod 26. A stop block 2 is fixedly installed at the top of the vertical guide rod 26. The sliding connection between the guide block 27 and the vertical guide rod 26 guides the movement direction of the plug 15, ensuring that the plug 15 moves smoothly and vertically. The stop block 2 is used to block and limit the downward stroke of the plug 15.

[0042] In this embodiment, a support frame 28 is fixedly installed on the right side wall of the trolley 1. The top of the support frame 28 is fixedly connected to the outer wall of the conveying pipe 8. The design of the support frame 28 serves to support and reinforce the conveying pipe 8, thereby enhancing the stability of the conveying pipe 8.

[0043] In this embodiment, a liquid filling hole is provided on the top inner wall of the liquid fertilizer chamber 3. An end cap 29 is threaded into the liquid filling hole. The design of the liquid filling hole and the end cap 29 facilitates the pouring of liquid fertilizer into the liquid fertilizer chamber 3. An inclined feeding pipe 30 is fixedly installed on the left side of the material box 2. The bottom end of the feeding pipe 30 extends into the solid fertilizer chamber 4. An end cap 31 is threaded into the top end of the feeding pipe 30. The design of the feeding pipe 30 and the end cap 31 facilitates the addition of solid fertilizer to the solid fertilizer chamber 4. Inside the material chamber 4, an observation port 1 is provided on the front inner wall of the liquid fertilizer chamber 3, and an observation mirror 32 is fixedly installed inside the observation port 1. The design of the observation mirror 32 is to facilitate the observation of the amount of liquid fertilizer. An observation port 2 is provided on the front inner wall of the solid fertilizer chamber 4, and an observation mirror 33 is fixedly installed inside the observation port 2. The design of the observation mirror 33 is to facilitate the observation of the amount of solid fertilizer. The bottom inner wall of the solid fertilizer chamber 4 has an inclined surface structure. The inclined surface design helps the solid fertilizer to be discharged smoothly and completely.

[0044] In this embodiment, a power supply box 34 is fixedly installed on the top of the trolley 1. A battery pack 35 is fixedly installed inside the power supply box 34. The delivery pump 5, motor 10, hydraulic cylinder 18 and hydraulic cylinder 21 are all electrically connected to the battery pack 35. The battery pack 35 is used to supply power to the delivery pump 5, motor 10, hydraulic cylinder 18 and hydraulic cylinder 21 respectively. A multi-control switch is fixedly installed on the outer wall of the power supply box 34. The delivery pump 5, motor 10, hydraulic cylinder 18 and hydraulic cylinder 21 are all electrically connected to the multi-control switch. The multi-control switch is used to control the delivery pump 5, motor 10, hydraulic cylinder 18 and hydraulic cylinder 21 to be powered on and run respectively.

[0045] With the above structure, the working principle of the uniform fertilization device for agricultural planting provided in this application is as follows:

[0046] Unscrew end cap 29, pour the prepared liquid fertilizer into the liquid fertilizer chamber 3 through the liquid filling hole, then screw end cap 29 back into the liquid filling hole. Unscrew end cap 31, pour the solid fertilizer into the solid fertilizer chamber 4 through the feeding pipe 30, then screw end cap 31 back onto the feeding pipe 30. Then you can push the cart 1 forward to the fertilization location.

[0047] When applying liquid fertilizer, push the trolley 1 so that the plug 15 is aligned with the location to be fertilized. Then, control the hydraulic cylinder 18 to extend and move, which will control the fixed plate 19, the lifting pipe 14 and the plug 15 to descend vertically until the bottom of the plug 15 is inserted into the soil. Stop the operation of the hydraulic cylinder 18. Then, start the delivery pump 5. The delivery pump 5 draws liquid fertilizer from the liquid fertilizer chamber 3 through the suction pipe 6 and sends it into the vertical pipe 12 through the delivery hose 7 and the inlet pipe 13. The liquid fertilizer flows into the lifting pipe 14 along the vertical pipe 12 and finally sprays out through the multiple liquid outlet oblique holes 16 on the plug 15, penetrating into the soil. After fertilizing this location, stop the operation of the delivery pump 5, control the hydraulic cylinder 18 to retract and reset, and drive the fixed plate 19, the lifting pipe 14 and the plug 15 to rise back to their original positions. The plug 15 is pulled out of the soil. By following the above steps, you can continue to apply liquid fertilizer to the next location.

[0048] When applying solid fertilizer, push the trolley 1 so that the plug 15 is aligned with the location where fertilizer needs to be applied. First, control the hydraulic cylinder 18 to extend until the bottom end of the plug 15 is inserted into the soil. Then, control the hydraulic cylinder 21 to extend. At this time, the output shaft of the hydraulic cylinder 21 continues to push the plug 15 down, and the plug 15 is inserted deeper into the soil, removing the obstruction to the bottom opening of the lifting pipe 14. Then, start the motor 10. The output shaft of the motor 10 drives the spiral conveying shaft 11 to rotate. The solid fertilizer inside the solid fertilizer chamber 4 is conveyed by the spiral conveying shaft. Under the rotation of 11, the material is conveyed through the conveying pipe 8 to the feeding cylinder 9, then falls into the vertical pipe 12, and then enters the lifting pipe 14. Finally, the solid fertilizer can be smoothly discharged into the soil from the bottom opening of the lifting pipe 14. After fertilization at this location is completed, the motor 10 is stopped, the hydraulic cylinder 18 is controlled to retract and reset, driving the lifting pipe 14 to rise and pull out the plug 15, and the hydraulic cylinder 21 is controlled to retract and reset, driving the plug 15 to rise back to its original position (to cover the bottom opening of the lifting pipe 14 again). Following the above steps, solid fertilizer can be applied to the next location.

Claims

1. An agricultural planting uniform fertilizer application apparatus, characterized by, The system includes a trolley (1), on which a material box (2) is fixedly installed. The material box (2) has a liquid fertilizer chamber (3) and a solid fertilizer chamber (4) arranged sequentially from top to bottom. A delivery pump (5) is fixedly installed on the outer right side wall of the material box (2). A suction pipe (6) is fixedly connected to the suction end of the delivery pump (5), and one end of the suction pipe (6) extends into the liquid fertilizer chamber (3). A delivery hose (7) is fixedly connected to the discharge end of the delivery pump (5). A delivery pipe (8) is fixedly installed on the right side of the material box (2). The left end of the delivery pipe (8) is connected to the solid fertilizer chamber (4), and the right end of the delivery pipe (8) is fixedly connected to a feed cylinder (9). A feed cylinder (9) is fixedly installed on the right side of the feed cylinder (9). The device is equipped with a motor (10), the output shaft of which extends into the feed cylinder (9) and is fixedly installed with a spiral conveying shaft (11). The left end of the spiral conveying shaft (11) passes through the feed pipe (8). The bottom of the feed cylinder (9) is fixedly connected to a vertical pipe (12). The left side of the vertical pipe (12) is fixedly connected to an inlet pipe (13). One end of the inlet hose (7) is fixedly connected to the left end of the inlet pipe (13). A lifting pipe (14) is slidably installed inside the vertical pipe (12). The bottom end of the lifting pipe (14) extends outside the vertical pipe (12). A plug (15) is provided at the bottom end of the lifting pipe (14). Multiple evenly distributed oblique outlet holes (16) are opened on the plug (15).

2. The uniform fertilizer applicator for agricultural planting according to claim 1, characterized in that: A fixing lug 1 (17) located below the inlet pipe (13) is fixedly installed on the left outer wall of the vertical pipe (12). A hydraulic cylinder 1 (18) is fixedly installed at the bottom of the fixing lug 1 (17). A fixing disc (19) is fixedly sleeved on the outer wall of the lifting pipe (14). The output shaft end of the hydraulic cylinder 1 (18) is fixedly connected to the top of the fixing disc (19). A wear-resistant sealing ring (25) is fixedly installed on the top outer wall of the lifting pipe (14). The outer ring of the wear-resistant sealing ring (25) slides and seals with the inner wall of the vertical pipe (12).

3. The uniform fertilizer applicator for agricultural planting according to claim 2, wherein: The top of the fixed plate (19) is fixedly installed with a vertical guide rod (23) located on the right side of the vertical tube (12). A guide block (24) is fixedly installed on the outer right side of the vertical tube (12). The guide block (24) is slidably sleeved on the vertical guide rod (23). A stop block is fixedly installed at the top of the vertical guide rod (23).

4. The uniform fertilizer applicator for agricultural planting according to claim 2, wherein: The plug (15) includes a frustum-shaped middle part (151), a conical bottom (152), and a conical top (153). The diameter of the frustum-shaped middle part (151) increases sequentially from top to bottom. The top of the frustum-shaped middle part (151) abuts against the bottom surface of the lifting tube (14). The conical bottom (152) is fixedly connected to the bottom of the frustum-shaped middle part (151). The diameter of the conical bottom (152) decreases sequentially from top to bottom. The conical top (153) is fixedly connected to the top of the frustum-shaped middle part (151). The conical top (153) extends into the lifting tube (14). The diameter of the conical top (153) increases sequentially from top to bottom. The frustum-shaped middle part (151), the conical bottom (152), and the conical top (153) are integrally cast.

5. The uniform fertilizer applicator for agricultural planting according to claim 4, wherein: The top diameter of the frustum-shaped middle part (151) is smaller than the outer diameter of the lifting tube (14), and the top diameter of the frustum-shaped middle part (151) is larger than the inner diameter of the lifting tube (14).

6. The uniform fertilizer applicator for agricultural planting according to claim 5, wherein: A second fixed ear (20) located below the fixed plate (19) is fixedly installed on the left outer wall of the lifting tube (14). A second hydraulic cylinder (21) is fixedly installed at the bottom of the second fixed ear (20). A connecting rod (22) is fixedly installed at the output shaft end of the second hydraulic cylinder (21). The bottom end of the connecting rod (22) is fixedly connected to the top of the frustum-shaped middle part (151).

7. The uniform fertilizer applicator for agricultural planting according to claim 5, wherein: The top of the truncated cone-shaped middle part (151) is fixedly installed with a vertical guide rod two (26) located on the right side of the lifting tube (14). A guide block two (27) is fixedly installed on the outer right side of the lifting tube (14). The guide block two (27) is slidably sleeved on the vertical guide rod two (26). A stop block two is fixedly installed at the top of the vertical guide rod two (26).

8. The uniform fertilizer applicator for agricultural planting according to claim 1, wherein: A support frame (28) is fixedly installed on the right side wall of the trolley (1), and the top of the support frame (28) is fixedly connected to the outer wall of the conveying pipe (8).

9. The uniform fertilizer applicator for agricultural planting according to claim 1, wherein: The liquid fertilizer chamber (3) has a liquid filling hole on its top inner wall. An end cap (29) is threaded into the liquid filling hole. An inclined feeding pipe (30) is fixedly installed on the left side of the material box (2). The bottom end of the feeding pipe (30) extends into the solid fertilizer chamber (4). An end cap (31) is threaded into the top end of the feeding pipe (30). An observation port (1) is opened on the front inner wall of the liquid fertilizer chamber (3). An observation mirror (32) is fixedly installed in the observation port (1). An observation port (2) is opened on the front inner wall of the solid fertilizer chamber (4). An observation mirror (23) is fixedly installed in the observation port (2). The bottom inner wall of the solid fertilizer chamber (4) is an inclined surface structure.

10. The uniform fertilizer applicator for agricultural planting according to claim 1, wherein: A power supply box (34) is fixedly installed on the top of the trolley (1), and a battery pack (35) is fixedly installed inside the power supply box (34). The delivery pump (5), motor (10), hydraulic cylinder one (18) and hydraulic cylinder two (21) are all electrically connected to the battery pack (35).

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