Fertilizing device with adjustable fertilizing depth

Abstract

The invention discloses a fertilization device with adjustable fertilization depth, and relates to the technical field of fertilization, the fertilization device comprises a fertilization assembly, the fertilization assembly comprises a fixing frame, a storage bin is fixed at the top of the fixing frame, a discharger is arranged at the bottom of the storage bin, and a discharging pipe is fixed at the bottom of the discharger; the auxiliary assembly is arranged below the fixing frame and comprises a lifting part, the lifting part comprises a movable pipe located on the outer side of the discharging pipe, a sharp nozzle is arranged at the bottom of the movable pipe, a sliding rail is fixed to one side of the movable pipe, a supporting plate is fixed to the bottom of the fixing frame, a rotating sleeve is rotationally connected into the supporting plate, a rotating plate is fixed to the end of the rotating sleeve, and a sliding groove is formed in the rotating plate. Through the arrangement of the auxiliary assembly, fertilizer can penetrate into a soil layer at a fixed point, the fertilizer can directly reach a crop root zone, the fertilizer utilization rate is remarkably increased, volatilization and loss are reduced, environmental pollution is reduced, crop root system absorption is promoted, and yield increase and quality improvement are assisted.

Description

Technical Field

[0001] This invention relates to the field of fertilization technology, and in particular to a fertilization device with adjustable fertilization depth. Background Technology

[0002] Fertilizer application devices are mechanical equipment used in agricultural production to apply fertilizer quantitatively and directionally to the soil or crop root zone. They can be divided into types such as fertilizer spreaders, row fertilizer spreaders, and hole fertilizer spreaders. Their core function is to replace manual fertilization, improve fertilization efficiency and fertilizer utilization. Existing fertilizer application devices can only spread fertilizer on the soil surface and cannot apply fertilizer at specific points deep into the soil according to the spacing between seedlings. The fertilizer spread on the surface is directly exposed to the air, and volatile components such as nitrogen will be quickly lost. When it rains or is irrigated, fertilizer is easily washed away by surface runoff or seeps into the deeper soil outside the crop root zone, making it difficult for crop roots to absorb. Different crops have different seedling spacing and root distribution depths. Without targeted fertilization, fertilizer distribution will be uneven, resulting in "over-fertilizer burning seedlings" or "under-fertilizer nutrient deficiency". At the same time, if the fertilizer is not applied to the soil layer where the roots are concentrated, the crops need to actively extend their roots to feed, resulting in slow seedling growth, reduced stress resistance, and ultimately affecting yield and quality. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problems existing in the above and / or existing fertilizer application devices with adjustable fertilization depth, the present invention is proposed.

[0005] Therefore, the problem that this invention aims to solve is that fertilization cannot be applied at fixed points and deep layers according to the spacing between seedlings, resulting in fertilizer being released too quickly and the crop roots having difficulty absorbing it.

[0006] To solve the above technical problems, the present invention provides the following technical solution: a fertilization device with adjustable fertilization depth, comprising a fertilization component, including a fixing frame, a storage bin fixed at the top of the fixing frame, a feeder provided at the bottom of the storage bin, and a feed pipe fixed at the bottom of the feeder;

[0007] An auxiliary component, located below the fixed frame, includes a lifting member. The lifting member includes a movable tube located outside the feeding tube. The bottom of the movable tube is provided with a pointed nozzle. A slide rail is fixed to one side of the movable tube. A support plate is fixed to the bottom of the fixed frame. A rotating sleeve is rotatably connected inside the support plate. A rotating plate is fixed to the end of the rotating sleeve. A sliding groove is opened on the rotating plate. A sliding shaft is provided inside the sliding groove. The sliding shaft is movably connected to the slide rail.

[0008] As a preferred embodiment of the fertilizer application device with adjustable fertilization depth according to the present invention, wherein: a connecting plate is fixed on one side of the sliding shaft, a threaded column is threadedly connected to the connecting plate, a positioning plate is fixed on one side of the rotating plate, and the end of the threaded column is rotatably connected to the positioning plate through a bearing.

[0009] As a preferred embodiment of the fertilizer application device with adjustable fertilization depth according to the present invention, the auxiliary component further includes a pulling member, the pulling member including a rotating block fixed to one side of the nozzle, a stabilizing plate fixed to one side of the movable tube, the center of the rotating block being rotatably connected to the stabilizing plate via a rotating shaft, a pull rod being rotatably connected to one side of the rotating block via a rotating shaft, a fixing frame being sleeved on the outside of the pull rod, a fixing block being fixed to the end of the pull rod, and a through groove being provided on the fixing frame.

[0010] As a preferred embodiment of the fertilizer application device with adjustable fertilization depth according to the present invention, a threaded rod is fixed to the top of the fixed frame, and a threaded sleeve is threadedly connected to the outside of the threaded rod.

[0011] As a preferred embodiment of the fertilizer application device with adjustable fertilization depth according to the present invention, the auxiliary component further includes a driving component, the driving component includes a motor, the motor is fixed to the bottom of the fixed frame through a mounting bracket, a rotating rod is fixed to the output shaft of the motor, a reciprocating roller is movably connected to the outside of the rotating rod, a toothed groove is opened at the end of the reciprocating roller, and a toothed block is fixed on one side of the rotating sleeve.

[0012] As a preferred embodiment of the fertilizer application device with adjustable fertilization depth according to the present invention, wherein: a positioning ring is sleeved on the outer side of the reciprocating roller, a fixed shaft is fixed inside the positioning ring, the fixed shaft meshes with the reciprocating roller, an annular groove is opened on the outer side of the reciprocating roller, an extrusion rod is rotatably connected inside the rotating sleeve, one side of the bottom end of the extrusion rod is arc-shaped, a rotating ring is rotatably connected to the outer side of the reciprocating roller, and a force-bearing rod is fixed at the bottom of the rotating ring.

[0013] As a preferred embodiment of the fertilizer application device with adjustable fertilization depth according to the present invention, the auxiliary component further includes a limiting member, the limiting member including a fixing sleeve located outside the positioning ring, the fixing sleeve being fixed to one side of the mounting frame via a connecting rod, a support frame being fixed to the top of the positioning ring, an insert block being provided inside the support frame, a slot being provided inside the fixing sleeve, and a spring being fixed to the bottom of the insert block.

[0014] As a preferred embodiment of the fertilizer application device with adjustable fertilization depth according to the present invention, a stop block is provided in the slot, and a connecting column is fixed on one side of the stop block.

[0015] As a preferred embodiment of the fertilizer application device with adjustable fertilization depth according to the present invention, the auxiliary component further includes a pusher, the pusher including a push rod inserted into the support frame, and the insert block having a force-receiving groove.

[0016] As a preferred embodiment of the fertilizer application device with adjustable fertilization depth according to the present invention, wherein: a movable groove is provided on one side of the push rod, a force-bearing block is provided in the movable groove, a positioning column is fixed in the force-bearing block, the positioning column is rotatably connected to the push rod, a torsion spring is fixed on the outside of the positioning column, the other end of the torsion spring is fixed to the push rod, and a compression ring is fixed on the outside of the reciprocating roller through a support column.

[0017] The beneficial effects of this invention are as follows: by setting up auxiliary components, fertilizer can be directed into the soil layer, allowing the fertilizer to reach the root zone of the crop directly, significantly improving fertilizer utilization, reducing volatilization and loss, reducing environmental pollution, and promoting absorption by crop roots, thus helping to increase yield and improve quality.

[0018] It can adjust the fertilization depth according to different crops, adapt to the root distribution characteristics of different crops, meet the diverse planting needs, and the fertilization frequency can be flexibly adjusted according to the spacing between plants to ensure uniform and accurate fertilization and avoid fertilizer damage or nutrient deficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural diagram of a fertilizer application device with adjustable fertilization depth.

[0021] Figure 2 This is a side view of the overall structure of a fertilizer application device with adjustable fertilization depth.

[0022] Figure 3This is a structural diagram of the lifting component of a fertilizer applicator with adjustable fertilization depth.

[0023] Figure 4 This is a cross-sectional view of the movable tube of a fertilizer application device with adjustable fertilization depth.

[0024] Figure 5 This is a structural diagram of the drive component of a fertilizer applicator with adjustable fertilization depth.

[0025] Figure 6 A partial cross-sectional view of the rotating sleeve of a fertilizer applicator with adjustable fertilization depth.

[0026] Figure 7 A partial cross-sectional view of the reciprocating roller structure of a fertilizer applicator with adjustable fertilization depth.

[0027] Figure 8 A fertilizer application device with adjustable fertilization depth Figure 8 Enlarged view of a portion of point A in the middle.

[0028] Figure 9 This is a structural diagram of the reciprocating roller and rotating sleeve of a fertilizer applicator with adjustable fertilization depth.

[0029] Figure 10 This is a structural diagram of the fixed sleeve of a fertilizer application device with adjustable fertilization depth.

[0030] Figure 11 A fertilizer application device with adjustable fertilization depth Figure 10 Enlarged view of section B in the middle.

[0031] Figure 12 A bottom view of the reciprocating rollers of a fertilizer applicator with adjustable fertilization depth.

[0032] In the diagram: 1. Fertilizer applicator; 11. Fixing frame; 12. Storage bin; 13. Feeder; 14. Feeding pipe; 2. Auxiliary components; 21. Lifting component; 211. Movable pipe; 212. Nozzle; 213. Slide rail; 214. Support plate; 215. Rotating sleeve; 216. Rotating plate; 216-1. Slide groove; 217. Sliding shaft; 218. Connecting plate; 219. Threaded column; 210. Positioning plate; 22. Pulling component; 221. Rotating block; 222. Stabilizing plate; 223. Pull rod; 224. Fixing frame; 225. Fixing block; 224-1. Through groove; 226. Threaded rod; 227. Threaded sleeve; 23. Driving component ; 231, Motor; 232, Rotating rod; 233, Reciprocating roller; 233-1, Tooth groove; 234, Tooth block; 235, Positioning ring; 236, Fixed shaft; 233-2, Annular groove; 237, Extrusion rod; 238, Rotating ring; 239, Force-bearing rod; 24, Limiting position; 241, Fixed sleeve; 242, Support frame; 243, Insert block; 241-1, Slot; 244, Spring; 245, Stop block; 246, Connecting column; 25, Pushing component; 251, Push rod; 243-1, Force-bearing groove; 251-1, Movable groove; 252, Force-bearing block; 253, Positioning column; 254, Torsion spring; 255, Extrusion ring. Detailed Implementation

[0033] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0036] Example 1, referring to Figures 1-4This is the first embodiment of the present invention. This embodiment provides a fertilizer application device with adjustable fertilization depth. The fertilizer application device with adjustable fertilization depth includes a fertilizer application component 1, including a fixed frame 11. The fixed frame 11 can be connected and fixed to a field walking mechanism, and the fixed frame 11 is moved by the walking mechanism. A storage bin 12 is fixed on the top of the fixed frame 11. The storage bin 12 is used to store fertilizer. A feeder 13 is provided at the bottom of the storage bin 12. The feeder 13 is a rotary feeder, which can be connected to the power of the walking mechanism, or a drive motor can be installed. By rotating the feeder 13, the granular slow-release fertilizer inside the storage bin 12 can fall into the feed pipe 14. The feeder 13 is fixed at the bottom of the feeder 13, and the fertilizer is conveyed downward through the feed pipe 14. This is the prior art, and this solution will not be described in detail. Moreover, those skilled in the art can clearly understand the working principle.

[0037] Auxiliary component 2, located below the fixed frame 11, includes a lifting component 21. The lifting component 21 includes a movable tube 211 located outside the discharge tube 14. The movable tube 211 can move up and down outside the discharge tube 14. The bottom of the movable tube 211 is provided with a pointed nozzle 212. There are two nozzles 212, one fixed to the bottom of the movable tube 211 and the other movably connected to the bottom of the movable tube 211. The bottoms of both nozzles 212 are conical. When the movable tube 211 descends into the soil layer, the nozzles 212 facilitate the insertion of the movable tube 211 into the soil layer.

[0038] A slide rail 213 is fixed on one side of the movable tube 211, and a support plate 214 is fixed at the bottom of the fixed frame 11. A rotating sleeve 215 is rotatably connected to the support plate 214 through a bearing. A rotating plate 216 is fixed at the end of the rotating sleeve 215. A sliding groove 216-1 is opened on the rotating plate 216. A sliding shaft 217 is provided in the sliding groove 216-1. The sliding shaft 217 is movably connected to the slide rail 213.

[0039] When the rotating plate 216 rotates, it drives the slide rail 213 to move up and down through the sliding shaft 217, and the slide rail 213 drives the movable tube 211 to move up and down. When the movable tube 211 moves downward, it penetrates into the soil layer and applies fertilizer inside the soil layer. When the movable tube 211 moves upward, the traveling mechanism will drive the movable tube 211 forward, moving it to another crop and penetrating the soil layer again. This allows the fertilizer to penetrate the soil layer at a fixed point, so that the fertilizer reaches the root zone of the crop, significantly improving fertilizer utilization, reducing volatilization and loss, reducing environmental pollution, and promoting the absorption of crop roots, thus helping to increase yield and improve quality.

[0040] A connecting plate 218 is fixed to one side of the sliding shaft 217. A threaded post 219 is threadedly connected to the connecting plate 218. A positioning plate 210 is fixed to one side of the rotating plate 216. The end of the threaded post 219 is rotatably connected to the positioning plate 210 through a bearing. Rotating the threaded post 219 will drive the sliding shaft 217 to move in the slide groove 216-1, so that the sliding shaft 217 is closer to or further away from the center position of the rotating plate 216.

[0041] When the sliding shaft 217 is close to the center of the rotating plate 216, the height of the moving tube 211 during the rotation of the rotating plate 216 will decrease, resulting in a shallower fertilization depth. When the sliding shaft 217 is far from the center of the rotating plate 216, the height of the moving tube 211 during the rotation of the rotating plate 216 will increase, resulting in a deeper fertilization depth. This allows for adjustment of the fertilization depth according to different crops, adapting to the root distribution characteristics of different crops and meeting diverse planting needs.

[0042] Example 2, refer to Figures 2-7 , Figure 10 and Figure 12 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0043] Specifically, the auxiliary component 2 also includes a pulling component 22. The pulling component 22 includes a rotating block 221 fixed to one side of the nozzle 212. A stabilizing plate 222 is fixed to one side of the movable tube 211. The center of the rotating block 221 is rotatably connected to the stabilizing plate 222 through a rotating shaft. The nozzle 212, which is movably connected to the bottom of the movable tube 211, is hinged to the bottom of the movable tube 211 through the cooperation of the rotating block 221 and the stabilizing plate 222. When one side of the rotating block 221 rotates upward, the nozzle 212 will open to one side.

[0044] A pull rod 223 is rotatably connected to one side of the rotating block 221 via a rotating shaft. A fixing frame 224 is fitted on the outside of the pull rod 223. A fixing block 225 is fixed to the end of the pull rod 223. A through groove 224-1 is provided on the fixing frame 224.

[0045] When the movable tube 211 moves downward, it pulls the lever 223 downward through the rotating block 221. At this time, the fixed block 225 moves downward along the through groove 224-1. When the movable tube 211 is about to move to the bottom end, the fixed block 225 will contact the bottom wall of the through groove 224-1 and be blocked from moving downward. When the movable tube 211 continues to move downward, the lever 223 will apply an upward pulling force to the rotating block 221, and the rotating block 221 will drive the nozzle 212 to open to one side, so that the fertilizer inside the movable tube 211 can fall into the soil layer and complete the fertilization.

[0046] A threaded rod 226 is fixed to the top of the fixed frame 224. A threaded sleeve 227 is threadedly connected to the outside of the threaded rod 226. The top of the threaded sleeve 227 is rotatably connected to the feeder 13 through a bearing. When the position of the sliding shaft 217 is adjusted, the height of the fixed frame 224 needs to be adjusted synchronously. If the sliding shaft 217 is close to the center of the rotating plate 216, then the threaded sleeve 227 needs to be rotated to drive the threaded rod 226 to move upward, so that the threaded rod 226 drives the fixed frame 224 to move upward. Since the height of the movable tube 211 moving downward is reduced, the fixed frame 224 needs to be moved upward, and the bottom wall of the through groove 224-1 needs to be close to the fixed block 225 to ensure that after the movable tube 211 moves down to the bottom, the fixed block 225 can contact the bottom wall of the through groove 224-1. If the sliding shaft 217 is far away from the center of the rotating plate 216, then the fixed frame 224 needs to be moved downward.

[0047] Auxiliary component 2 also includes a drive component 23, which includes a motor 231. The motor 231 is fixed to the bottom of the fixed frame 11 via a mounting bracket. A rotating rod 232 is fixed to the output shaft of the motor 231. The rotating rod 232 is rectangular. A reciprocating roller 233 is movably connected to the outside of the rotating rod 232. A toothed groove 233-1 is opened at the end of the reciprocating roller 233. A toothed block 234 is fixed on one side of the rotating sleeve 215.

[0048] When the motor 231 starts, it will drive the reciprocating roller 233 to rotate through the rotating rod 232. When the reciprocating roller 233 moves to the position of the rotating sleeve 215 and inserts into the rotating sleeve 215, and when the tooth block 234 meshes with the tooth groove 233-1, the reciprocating roller 233 will drive the rotating sleeve 215 to rotate, and then the rotating plate 216 will be driven to rotate through the rotating sleeve 215.

[0049] A positioning ring 235 is sleeved on the outer side of the reciprocating roller 233. A fixed shaft 236 is fixed inside the positioning ring 235. The fixed shaft 236 meshes with the reciprocating roller 233. An annular groove 233-2 is opened on the outer side of the reciprocating roller 233. The annular groove 233-2 is connected to the reciprocating groove on the outer side of the reciprocating roller 233.

[0050] When the positioning ring 235 is locked, the rotation of the reciprocating roller 233 will cause the fixed shaft 236 to slide inside the groove on its surface. At this time, the reciprocating roller 233 will move towards the position of the rotating sleeve 215. When the tooth block 234 meshes with the tooth groove 233-1, the fixed shaft 236 will enter the annular groove 233-2. When the reciprocating roller 233 rotates, the fixed shaft 236 will slide along the annular groove 233-2, thereby enabling the reciprocating roller 233 to drive the rotating sleeve 215 to rotate one revolution and enabling the movable tube 211 to complete one up and down movement.

[0051] An extrusion rod 237 is rotatably connected inside the rotating sleeve 215. An arc-shaped groove is opened at the bottom of the rotating sleeve 215. The extrusion rod 237 is movably connected to the arc-shaped groove. One side of the bottom end of the extrusion rod 237 is arc-shaped and has a certain weight. The extrusion rod 237 is in a vertical state under the weight. A rotating ring 238 is rotatably connected to the outside of the reciprocating roller 233 through a bearing. A force-bearing rod 239 is fixed at the bottom of the rotating ring 238. The force-bearing rod 239 is inclined and offset from the extrusion rod 237.

[0052] A guide rod is fixed to the top of the rotating ring 238, and a guide post is fixed to one side of the support plate 214. The guide post passes through the guide rod and is movably connected to the guide rod. The two work together to limit the rotation ring 238, so that the rotating ring 238 can move axially with the reciprocating roller 233, but will not rotate with the reciprocating roller 233.

[0053] Because the force-bearing rod 239 and the extrusion rod 237 are misaligned, when the reciprocating roller 233 is inserted into the rotating sleeve 215, the force-bearing rod 239 and the extrusion rod 237 will not contact each other, and the end of the reciprocating roller 233 will press against the extrusion rod 237, making the extrusion rod 237 and the rotating sleeve 215 tightly adhere. When the rotating sleeve 215 rotates, it can drive the extrusion rod 237 to rotate. After the rotating sleeve 215 rotates one revolution, the fixed shaft 236 will move to the connection point between the annular groove 233-2 and the reciprocating groove on the surface of the reciprocating roller 233. At the same time, the arc-shaped protrusion at the end of the extrusion rod 237 will contact the force-bearing rod 239 and apply a pushing force to the force-bearing rod 239, causing the force-bearing rod 239 to drive the reciprocating roller 233 to move in the opposite direction. At this time, the fixed shaft 236 will enter the reciprocating groove on the surface of the reciprocating roller 233. As the reciprocating roller 233 rotates, it can move in the opposite direction to the initial position with the cooperation of the fixed shaft 236.

[0054] Then, after the reciprocating roller 233 drives the rotating sleeve 215 to rotate one revolution, it will separate from the rotating sleeve 215 and stop rotating. During this period, the traveling mechanism will drive the movable tube 211 forward, so that the movable tube 211 moves to the next fertilization point.

[0055] After the reciprocating roller 233 separates from the rotating sleeve 215, the extrusion rod 237 will become vertical under its own weight, and when the force rod 239 approaches again, it will not contact the extrusion rod 237.

[0056] Example 3, referring to Figure 8 and Figure 11 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0057] Specifically, the auxiliary component 2 also includes a limiting member 24, which includes a fixing sleeve 241 located outside the positioning ring 235. The fixing sleeve 241 is rotatably connected to the outside of the positioning ring 235 through a bearing. The fixing sleeve 241 is fixed to one side of the mounting bracket through a connecting rod. A support frame 242 is fixed to the top of the positioning ring 235. An insert block 243 is provided inside the support frame 242. A slot 241-1 is opened on the inner side of the fixing sleeve 241. A spring 244 is fixed to the bottom of the insert block 243.

[0058] When the insert block 243 engages with the slot 241-1, the positioning ring 235 is locked by their cooperation, preventing the positioning ring 235 and the fixed shaft 236 from rotating. This allows the reciprocating roller 233 to move axially when it rotates. When the insert block 243 separates from the slot 241-1, the positioning ring 235 and the fixed shaft 236 will rotate with the reciprocating roller 233, and the reciprocating roller 233 will not move axially at this time.

[0059] There are multiple slots 241-1, which are evenly distributed in a ring inside the fixing sleeve 241. The spring 244 is used to apply an upward pushing force to the insert 243.

[0060] A stop 245 is provided inside the slot 241-1. The size of the slot 241-1 is larger than that of the plug 243. A connecting post 246 is fixed on one side of the stop 245. The number of stops 245 corresponds to the number of slots 241-1. One end of the connecting post 246 extends through to the outside of the fixing sleeve 241 and is movably connected to the fixing sleeve 241.

[0061] The reciprocating roller 233 will only move axially when the insert block 243 engages with the slot 241-1. Therefore, when the reciprocating roller 233 rotates, it will drive the insert block 243 to rotate, so that it coincides with the slot 241-1, and the spring 244 will push the insert block 243 to engage with the slot 241-1. At this time, the reciprocating roller 233 will move axially.

[0062] If there are many slots 241-1, the reciprocating roller 233 will rotate the insertion block 243 by a small angle, which will cause the insertion block 243 to engage with the slot 241-1. In other words, if the reciprocating roller 233 and the rotating sleeve 215 are separated for a short time, the insertion block 243 will move into the rotating sleeve 215 again.

[0063] If the number of slots 241-1 is small, then the reciprocating roller 233 will drive the insert block 243 to rotate by a large angle before the insert block 243 engages with the slot 241-1. In other words, the reciprocating roller 233 will move into the rotating sleeve 215 again only when the separation time between the reciprocating roller 233 and the rotating sleeve 215 is relatively long. The length of the separation time between the reciprocating roller 233 and the rotating sleeve 215 can control the fertilization frequency. A short separation time results in a high fertilization frequency, while a long separation time results in a low fertilization frequency.

[0064] When the stop block 245 is pushed into the slot 241-1 and blocks the slot 241-1, the insert block 243 will not enter the slot 241-1 when it overlaps with the slot 241-1, thus reducing the number of slots 241-1. When the stop block 245 is moved to one side of the slot 241-1 and the slot 241-1 is exposed, the insert block 243 can enter the slot 241-1 when it overlaps with the slot 241-1, thus increasing the number of slots 241-1.

[0065] Therefore, the movable stop 245 can increase or decrease the number of slots 241-1, thereby allowing the fertilization frequency to be flexibly adjusted according to the plant spacing, ensuring uniform and accurate fertilization, and avoiding fertilizer damage or nutrient deficiency.

[0066] Furthermore, when moving the stop block 245, the exposed slots 241-1 need to be arranged in a ring-shaped equidistant pattern so that the spacing for each fertilization is consistent.

[0067] The auxiliary component 2 also includes a pusher 25, which includes a push rod 251 inserted into the support frame 242. The insert block 243 has a force groove 243-1 with an inclined inner wall. When the push rod 251 presses against the inner wall of the force groove 243-1, the two work together to move the insert block 243 and separate the insert block 243 from the slot 241-1.

[0068] A stabilizing frame is fixed on one side of the support frame 242. The push rod 251 is movably connected to the inside of the stabilizing frame. A limit block is fixed at the top of one end of the push rod 251 in the support frame 242. The limit block can restrict the push rod 251 from moving out of the support frame 242.

[0069] A movable groove 251-1 is provided on one side of the push rod 251. A force-bearing block 252 is provided in the movable groove 251-1. A positioning post 253 is fixed in the force-bearing block 252. The positioning post 253 is rotatably connected to the push rod 251. A torsion spring 254 is fixed on the outside of the positioning post 253. The other end of the torsion spring 254 is fixed to the push rod 251. The elastic force of the torsion spring 254 is greater than that of the spring 244. A compression ring 255 is fixed on the outside of the reciprocating roller 233 through a support post.

[0070] When the reciprocating roller 233 separates from the rotating sleeve 215 and is about to be reset, the extrusion ring 255 will contact the force block 252 and push the force block 252 to move, causing the force block 252 to drive the push rod 251 to move. This allows the push rod 251 to press against the inclined surface of the inner wall of the force groove 243-1, causing the insert block 243 to separate from the slot 241-1. As a result, after the reciprocating roller 233 is reset, the positioning ring 235 will be unlocked and rotate with the reciprocating roller 233 at a certain angle.

[0071] Once the push rod 251 contacts the end of the inner wall of the force groove 243-1, it can no longer move. At this time, the extrusion ring 255 will continue to move with the reciprocating roller 233. The extrusion ring 255 can then push the force block 252 to rotate and connect into the movable groove 251-1. When the reciprocating roller 233 stops moving, the extrusion ring 255 will separate from the movable groove 251-1 and can be reset under the elastic force of the torsion spring 254.

[0072] Since the elastic force of the torsion spring 254 is greater than that of the spring 244, when the force block 252 drives the push rod 251 to move, the push rod 251 pushes the insert block 243 to move downward, and the insert block 243 can compress and deform the spring 244.

[0073] When the reciprocating roller 233 moves in the positioning direction of the rotating sleeve 215, the extrusion ring 255 will apply a pushing force to the force block 252. Since the push rod 251 cannot be separated from the support frame 242, the force block 252 will rotate downward.

[0074] In use, when the storage bin 12 moves in the field with the traveling mechanism, the starter motor 231 drives the reciprocating roller 233 to rotate via the rotating rod 232. The rotation of the reciprocating roller 233 causes the fixed shaft 236 and the positioning ring 235 to rotate. The positioning ring 235 then drives the insert block 243 to rotate. When the insert block 243 coincides with the next slot 241-1, the spring 244 pushes the insert block 243 to engage with the slot 241-1. The two work together to lock the positioning ring 235, thus locking the positioning ring 235 and the fixed shaft 236. When 36 cannot rotate, the fixed shaft 236 will slide inside the reciprocating groove on the surface of the reciprocating roller 233, and move the reciprocating roller 233 towards the position of the rotating sleeve 215. When the tooth block 234 meshes with the tooth groove 233-1, the fixed shaft 236 will enter the annular groove 233-2. When the reciprocating roller 233 rotates, the fixed shaft 236 will slide along the annular groove 233-2, which will enable the reciprocating roller 233 to drive the rotating sleeve 215 to rotate one revolution, and the rotating sleeve 215 to drive the rotating plate 216.

[0075] When the rotating plate 216 rotates, it drives the slide rail 213 to move up and down through the sliding shaft 217, and the slide rail 213 drives the movable tube 211 to move up and down. When the movable tube 211 moves downward, it penetrates into the soil layer and applies fertilizer inside the soil layer. When the movable tube 211 moves upward, the traveling mechanism will drive the movable tube 211 forward, moving it to another crop and penetrating the soil layer again. This allows the fertilizer to penetrate the soil layer at a fixed point, so that the fertilizer reaches the root zone of the crop, significantly improving fertilizer utilization, reducing volatilization and loss, reducing environmental pollution, and promoting the absorption of crop roots, thus helping to increase yield and improve quality.

[0076] When the reciprocating roller 233 is inserted into the rotating sleeve 215, the end of the reciprocating roller 233 will press against the extrusion rod 237, making the extrusion rod 237 close to the rotating sleeve 215. When the rotating sleeve 215 rotates, it can drive the extrusion rod 237 to rotate. After the rotating sleeve 215 rotates one revolution, the fixed shaft 236 will move to the connection point between the annular groove 233-2 and the reciprocating groove on the surface of the reciprocating roller 233. At the same time, the arc-shaped protrusion at the end of the extrusion rod 237 will contact the force rod 239 and apply a pushing force to the force rod 239, causing the force rod 239 to drive the reciprocating roller 233 to move in the opposite direction. At this time, the fixed shaft 236 will enter the reciprocating groove on the surface of the reciprocating roller 233. As the reciprocating roller 233 rotates, it can move in the opposite direction to the initial position with the cooperation of the fixed shaft 236.

[0077] Then, after the reciprocating roller 233 drives the rotating sleeve 215 to rotate one revolution, it will separate from the rotating sleeve 215 and stop rotating. During this period, the traveling mechanism will drive the movable tube 211 forward, so that the movable tube 211 moves to the next fertilization point.

[0078] When the reciprocating roller 233 separates from the rotating sleeve 215 and is about to reset, the compression ring 255 contacts the force block 252 and pushes the force block 252 to move, causing the force block 252 to drive the push rod 251 to move. This allows the push rod 251 to press against the inclined surface of the inner wall of the force groove 243-1, causing the insert block 243 to separate from the slot 241-1. After the reciprocating roller 233 is reset, the positioning ring 235 will be unlocked and rotate with the reciprocating roller 233. The positioning ring 235 will drive the insert block 243 to rotate. When the insert block 243 coincides with the next slot 241-1, the spring 244 will push the insert block 243 to engage with the slot 241-1. The two work together to lock the positioning ring 235 again, preventing the positioning ring 235 and the fixed shaft 236 from rotating. This causes the reciprocating roller 233 to move axially again and insert into the rotating sleeve 215.

[0079] When the fertilization depth needs to be adjusted, rotating the threaded column 219 will cause the sliding shaft 217 to move within the groove 216-1, making the sliding shaft 217 closer to or further away from the center of the rotating plate 216. When the sliding shaft 217 is closer to the center of the rotating plate 216, the height of the moving tube 211 during the rotation of the rotating plate 216 will decrease, resulting in a shallower fertilization depth. When the sliding shaft 217 is further away from the center of the rotating plate 216, the height of the moving tube 211 during the rotation of the rotating plate 216 will increase, resulting in a deeper fertilization depth. This allows the fertilization depth to be adjusted according to different crops, adapting to the root distribution characteristics of different crops and meeting diverse planting needs.

[0080] When the fertilization frequency needs to be adjusted, the moving stop 245 increases or decreases the number of slots 241-1. If the number of slots 241-1 is small, the reciprocating roller 233 will drive the insert block 243 to rotate a larger angle before the insert block 243 engages with the slot 241-1. In other words, the reciprocating roller 233 will move into the rotating sleeve 215 again only after a longer separation time between the reciprocating roller 233 and the rotating sleeve 215. The length of the separation time between the reciprocating roller 233 and the rotating sleeve 215 can control the fertilization frequency. A shorter separation time results in a higher fertilization frequency, and a longer separation time results in a lower fertilization frequency. The moving stop 245 can then increase or decrease the number of slots 241-1, thereby allowing the fertilization frequency to be flexibly adjusted according to the plant spacing, ensuring uniform and accurate fertilization, and avoiding fertilizer damage or nutrient deficiency.

[0081] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A fertilizer application device with adjustable fertilization depth, characterized in that: include, The fertilizer application assembly (1) includes a fixing frame (11), a storage bin (12) is fixed on the top of the fixing frame (11), a feeder (13) is provided at the bottom of the storage bin (12), and a feed pipe (14) is fixed at the bottom of the feeder (13). An auxiliary component (2) is located below the fixed frame (11) and includes a lifting component (21). The lifting component (21) includes a movable tube (211) located outside the feed tube (14). A pointed nozzle (212) is provided at the bottom of the movable tube (211). A slide rail (213) is fixed on one side of the movable tube (211). A support plate (214) is fixed at the bottom of the fixed frame (11). A rotating sleeve (215) is rotatably connected inside the support plate (214). A rotating plate (216) is fixed at the end of the rotating sleeve (215). A sliding groove (216-1) is provided on the rotating plate (216). A sliding shaft (217) is provided inside the sliding groove (216-1). The sliding shaft (217) is movably connected to the slide rail (213).

2. The fertilizer application device with adjustable fertilization depth as described in claim 1, characterized in that: A connecting plate (218) is fixed on one side of the sliding shaft (217), and a threaded column (219) is threadedly connected to the connecting plate (218). A positioning plate (210) is fixed on one side of the rotating plate (216), and the end of the threaded column (219) is rotatably connected to the positioning plate (210) through a bearing.

3. The fertilizer application device with adjustable fertilization depth as described in claim 2, characterized in that: The auxiliary component (2) also includes a puller (22), which includes a rotating block (221) fixed to one side of the tip (212). A stabilizing plate (222) is fixed to one side of the movable tube (211). The center of the rotating block (221) is rotatably connected to the stabilizing plate (222) via a rotating shaft. A pull rod (223) is rotatably connected to one side of the rotating block (221) via a rotating shaft. A fixing frame (224) is sleeved on the outside of the pull rod (223). A fixing block (225) is fixed to the end of the pull rod (223). A through groove (224-1) is opened on the fixing frame (224).

4. The fertilizer application device with adjustable fertilization depth as described in claim 3, characterized in that: The top of the fixed frame (224) is fixed with a threaded rod (226), and a threaded sleeve (227) is threadedly connected to the outside of the threaded rod (226).

5. The fertilizer application device with adjustable fertilization depth as described in claim 3 or 4, characterized in that: The auxiliary component (2) also includes a driving component (23), which includes a motor (231). The motor (231) is fixed to the bottom of the fixed frame (11) via a mounting bracket. A rotating rod (232) is fixed to the output shaft of the motor (231). A reciprocating roller (233) is movably connected to the outside of the rotating rod (232). A toothed groove (233-1) is provided at the end of the reciprocating roller (233). A toothed block (234) is fixed on one side of the rotating sleeve (215).

6. The fertilizer application device with adjustable fertilization depth as described in claim 5, characterized in that: A positioning ring (235) is sleeved on the outside of the reciprocating roller (233), and a fixed shaft (236) is fixed inside the positioning ring (235). The fixed shaft (236) meshes with the reciprocating roller (233). An annular groove (233-2) is opened on the outside of the reciprocating roller (233). A pressing rod (237) is rotatably connected inside the rotating sleeve (215). One side of the bottom end of the pressing rod (237) is arc-shaped. A rotating ring (238) is rotatably connected on the outside of the reciprocating roller (233), and a force-bearing rod (239) is fixed at the bottom of the rotating ring (238).

7. The fertilizer application device with adjustable fertilization depth as described in claim 6, characterized in that: The auxiliary component (2) also includes a limiting member (24), which includes a fixing sleeve (241) located outside the positioning ring (235). The fixing sleeve (241) is fixed to one side of the mounting frame by a connecting rod. A support frame (242) is fixed to the top of the positioning ring (235). An insert (243) is provided inside the support frame (242). A slot (241-1) is opened inside the fixing sleeve (241). A spring (244) is fixed to the bottom of the insert (243).

8. The fertilizer application device with adjustable fertilization depth as described in claim 7, characterized in that: A stop (245) is provided in the slot (241-1), and a connecting post (246) is fixed on one side of the stop (245).

9. The fertilizer application device with adjustable fertilization depth as described in claim 7 or 8, characterized in that: The auxiliary component (2) also includes a pusher (25), which includes a push rod (251) inserted into the support frame (242), and a force groove (243-1) is provided on the insert (243).

10. The fertilizer application device with adjustable fertilization depth as described in claim 9, characterized in that: The push rod (251) has a movable groove (251-1) on one side, and a force-bearing block (252) is provided in the movable groove (251-1). A positioning column (253) is fixed in the force-bearing block (252). The positioning column (253) is rotatably connected to the push rod (251). A torsion spring (254) is fixed on the outside of the positioning column (253). The other end of the torsion spring (254) is fixed to the push rod (251). An extrusion ring (255) is fixed on the outside of the reciprocating roller (233) through a support column.

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