Precise layering intelligent fertilizing device for intercropping of cotton and cumin
By using a follow-up mechanism and special tools to unlock the fixed components, the problem of cumbersome and easily tampered depth adjustment of cotton-cumin intercropping fertilization equipment has been solved, enabling precise layered fertilization and preventing clogging, thus improving the reliability and efficiency of fertilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-26
- Publication Date
- 2026-03-31
AI Technical Summary
Existing cotton and cumin intercropping fertilization equipment has a cumbersome depth adjustment system that is easily tampered with and cannot adapt to different soil resistance levels, resulting in uneven fertilization and clogging problems.
It employs a follow-up mechanism and an adjustment mechanism, including a depth adjustment component and a vibration component. The vibration frequency is automatically adjusted by sensing changes in soil depth through a flexible wheel. Combined with a fixing component that can be unlocked using a special tool, it ensures accurate fertilization depth and prevents misoperation.
It enables precise stratified fertilization of cotton and cumin intercropping, prevents clogging, improves the reliability and efficiency of fertilization, and reduces equipment failure rate and operation difficulty.
Smart Images

Figure CN121753585A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of cotton-cumin fertilization technology, and more specifically, to a precise, layered, intelligent fertilization device for cotton-cumin intercropping. Background Technology
[0002] In existing technologies, cotton-cumin intercropping is a common and efficient planting model. However, the two crops differ significantly in their growth characteristics and nutrient requirements, especially in their fertilization depth. Cotton, as a deep-rooted crop, requires fertilizer to be applied to a deeper soil layer for later root absorption, while cumin, as a shallow-rooted crop, needs fertilizer concentrated in the upper part of the cultivated layer. Most existing intercropping fertilization equipment uses mechanical depth adjustment mechanisms, such as fixing the height of the furrow opener or fertilizer pipe with bolts. This adjustment method has drawbacks: First, the adjustment process must be manually operated with special tools such as wrenches, which is cumbersome and inefficient, and cannot quickly respond to different soil conditions or crop rotation needs in the field. Second, the bolt-fixed mechanical structure lacks effective locking, and anyone with the tools can easily change the preset depth. In cooperatives, rented agricultural machinery, or multi-person collaborative operations, the equipment parameters are easily tampered with unintentionally, causing the fertilization depth to deviate from agronomic requirements and directly affecting the accurate application of fertilizer.
[0003] Furthermore, the soil structure and physical properties at different depths can hinder the fertilization process to varying degrees, further amplifying the problems caused by the aforementioned adjustment methods. The upper soil layer is relatively loose, with less resistance to fertilization; the middle soil layer becomes more compact, increasing the resistance to trenching and requiring higher strength and power from the fertilization equipment; the deeper soil layer may contain more clay or gravel, which can easily cause blockages or wear. Traditional bolt-fixed equipment only changes the trenching depth during adjustment but fails to simultaneously optimize the adaptability of the fertilization mechanism to different soil layers. This leads to problems such as unstable trenching, uneven fertilizer distribution, or fertilizer interruption when fertilizing deep soil layers. This mismatch between depth adjustment and soil resistance not only reduces the reliability and uniformity of fertilization operations but may also increase the load on machinery due to sudden changes in resistance, affecting construction efficiency and increasing energy consumption. Ultimately, this restricts the achievement of precision fertilization and high-yield goals in the cotton-cumin intercropping model. Summary of the Invention
[0004] (a) Technical problems to be solved To address the problems existing in the prior art, the present invention provides a precise stratified intelligent fertilization device for cotton-cumin intercropping, in order to solve the technical problems mentioned in the background art.
[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a precise layered intelligent fertilization device for cotton-cumin intercropping, comprising a follow-up frame, a follow-up mechanism, and an adjustment mechanism; The follow-up mechanism includes a depth adjustment component and a vibration component. The follow-up mechanism can generate a corresponding knocking frequency according to different soil layer thicknesses, which avoids blockage during material discharge and improves the smoothness of material discharge. The depth adjustment component allows the entire system to dynamically adjust its vibration frequency according to the thickness of the soil layer it enters, thereby improving its performance. The vibration component ensures that appropriate vibrations are generated during the fertilization process to avoid fertilizer blockage and improve the smoothness of discharge. The adjustment mechanism includes a telescopic component and a fixing component. The adjustment mechanism ensures that the operator can only adjust the position when holding the corresponding unlocking tool, thereby improving the safety of use. The telescopic component ensures the continuity of soil layer adjustment and also guarantees the effectiveness of fertilization. The fixed component ensures that it can only be unlocked by a designated person, preventing accidental operation by others.
[0006] Preferably, the depth adjustment component includes a discharge pipe, and an insertion block is provided at the lower end of the discharge pipe. A striking sleeve is vertically provided on the side wall of the discharge pipe. An intermediate sleeve is provided at the upper limit of the striking sleeve. A plurality of follower springs are installed at equal intervals on the outer wall of the intermediate sleeve, and the other end of the plurality of follower springs is connected to a flexible wheel.
[0007] Preferably, the vibration mechanism includes an intermediate rod coaxially arranged with the intermediate sleeve, and the intermediate rod passes through the striking sleeve. Multiple striking blocks are installed at equal intervals inside the striking sleeve, and a vibration sleeve is sleeved on the intermediate rod.
[0008] Preferably, multiple sets of springs corresponding to the striking blocks are installed at equal intervals on the outer wall of the vibrating sleeve. Each set of springs has an impact rod on the side away from the vibrating sleeve. As the middle rod rotates, the multiple impact rods will cyclically strike the striking blocks to generate vibration and prevent fertilizer blockage.
[0009] Preferably, each of the insertion blocks is provided with two sets of discharge pipes, and each set of discharge pipes is connected to and installed with a flexible pipe. A material box is fixedly provided on the follower frame, and the flexible pipes are connected to the material boxes. Each material box is equipped with multiple sets of partitions, and the multiple sets of partitions separate multiple sets of adjacent flexible pipes into separate spaces.
[0010] Preferably, the telescopic assembly includes multiple circular sleeves that are fixedly installed at equal intervals on the follower frame, each circular sleeve having a semi-circular rod that is slidably connected to it, and the insertion block is connected to the semi-circular rod.
[0011] Preferably, the fixing component includes side sleeves, and multiple side sleeves are fixedly and equidistantly arranged on the outer wall of each circular sleeve. A positioning rod is slidably arranged inside each side sleeve. Multiple positioning holes are opened at equal intervals on the side wall of each semi-circular rod. The positioning rod is inserted into the positioning hole, and a handle is coaxially arranged on the positioning rod.
[0012] Preferably, the inner wall of the side sleeve is provided with two sets of circumferentially arranged locking grooves, and multiple outer blocks and inner blocks are respectively limited and slidably arranged in the two sets of locking grooves. Each inner block and outer block is provided with a return spring, and the return spring abuts against the inside of the side sleeve. The multiple outer blocks and inner blocks abut against the outer wall of the positioning rod.
[0013] Preferably, the multiple outer blocks have through holes, the multiple inner blocks have fixing holes, a synchronizing rod is slidably disposed in the through holes and inserted into the fixing holes, and each synchronizing rod is provided with a top block and the top block abuts against the outer block.
[0014] Preferably, each of the top blocks is provided with a push spring, and the lateral sleeve has multiple sets of slots corresponding to the synchronizing rod, and the multiple push springs pass through the corresponding slots and are connected to the synchronizing ring.
[0015] (III) Beneficial Effects Compared with the prior art, the present invention provides a precise stratified intelligent fertilization device for cotton-cumin intercropping, which has the following beneficial effects: This invention completely solves the technical problem of traditional fertilizer application device depth adjustment mechanisms being easily tampered with by integrating a mechanical linkage locking mechanism that requires a special tool for unlocking. In its fixing component, the outer block and the inner block form a normally closed self-locking mechanism for the positioning rod under the action of the return spring. The locking can only be released for depth adjustment when the synchronization rod of the special tool is inserted and pushes the synchronization ring. This design ensures the authority and stability of the fertilizer application depth parameter setting and effectively prevents agronomic accidents caused by unauthorized personnel's misoperation or malicious adjustment. It is particularly suitable for application scenarios such as cooperatives and agricultural machinery services that require strict management of operating parameters.
[0016] This invention creatively achieves intelligent adaptive matching between anti-clogging vibration intensity and fertilization depth. Its depth adjustment component directly converts the mechanical insertion depth into the rotational speed signal of the intermediate rod through the compression deformation of the flexible wheel in the soil. The greater the depth, the greater the pressure on the flexible wheel and the smaller the turning radius. Under the same forward speed, the rotational speed of the intermediate rod is higher, which in turn causes the impact rod in the vibration component to strike the striking block at a higher frequency, generating stronger vibration. This mechanism can automatically and dynamically optimize the anti-clogging performance according to the actual resistance of different soil layers. It provides strong vibration to ensure smooth flow in deep fertilization areas with high resistance, while using appropriate vibration in shallow areas to avoid excessive disturbance to the soil and fertilizer, significantly improving the continuity and reliability of fertilization operations.
[0017] This invention possesses excellent structural reliability and environmental adaptability. The entire sensing, transmission, and vibration generation process is achieved entirely through mechanical structures, without relying on electricity, sensors, or complex control systems. All key moving parts are effectively protected, enabling long-term stable operation in harsh working conditions such as dust, humidity, and vibration in the field. At the same time, the special tool locking mechanism has a simple and robust structure that is not easily damaged, greatly reducing the equipment's failure rate and maintenance costs, and ensuring the continuity of operations during busy farming seasons.
[0018] This invention offers high operational flexibility and agronomic adaptability. The working depth of each insertion block can be continuously and steplessly adjusted through the telescopic component, which can accurately meet the complex and varied depth configuration requirements when cotton and cumin are intercropped. The independent feed box compartment design allows for the simultaneous loading and precise application of two different fertilizers, realizing true stratified variable fertilization. In addition, the structural design of the device is easy to match with various traction power sources, and can be quickly integrated into the existing farmland operation system, greatly improving the practicality and promotion value of the technology.
[0019] This invention improves the quality and efficiency of operations while also demonstrating excellent ergonomic design. Although the depth adjustment mechanism requires the intervention of special tools to ensure safety, the tools themselves are simple and quick to use, and the adjustment process is direct and intuitive. Operators can quickly and accurately complete all settings. The adaptive anti-blocking function eliminates the trouble of frequent manual intervention to clear blockages, reduces the labor intensity of operators, and makes the complex agricultural operation of intercropping and stratified fertilization easier, more efficient and controllable. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of a precise layered intelligent fertilization device for cotton-cumin intercropping according to the present invention. Figure 2 This is a schematic diagram of the structure of the flexible wheel and the insertion block in this invention; Figure 3 This is a schematic diagram of the structure of the flexible wheel and the semi-circular rod in this invention; Figure 4 For the present invention Figure 3 A magnified view of part A in the image; Figure 5 This is a schematic diagram of the flexible wheel in this invention; Figure 6 This is a schematic diagram of the structure of the lateral sleeve and the positioning rod in this invention; Figure 7 This is a cross-sectional view of the lateral sleeve and synchronizing rod in this invention. Figure 8 This is a schematic diagram of the synchronizing rod in this invention; Figure 9 This is a cross-sectional view of the lateral sleeve in this invention.
[0021] In the diagram: 11. Follower frame; 21. Depth adjustment assembly; 22. Discharge pipe; 23. Insertion block; 24. Striking sleeve; 25. Intermediate sleeve; 26. Follower spring; 27. Flexible wheel; 31. Vibration assembly; 32. Intermediate rod; 33. Striking block; 34. Vibration sleeve; 35. Spring; 36. Impact rod; 37. Flexible tube; 38. Material box; 39. Partition; 41. Telescopic assembly; 42. Circular sleeve; 43. Semi-circular rod; 51. Fixing assembly; 52. Lateral sleeve; 53. Positioning rod; 54. Positioning hole; 55. Handle; 56. Locking groove; 57. Outer block; 58. Inner block; 59. Return spring; 510. Through hole; 511. Fixing hole; 512. Synchronizing rod; 513. Top block; 514. Push spring; 515. Groove; 516. Synchronizing ring. Detailed Implementation
[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0024] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.
[0025] Please see Figures 1 to 9This embodiment provides a precise, layered, intelligent fertilization device for cotton-cumin intercropping. This device aims to solve the problems of existing intercropping fertilization equipment, such as cumbersome depth adjustment, susceptibility to tampering, and inability to adapt to different soil resistance levels leading to blockage. By integrating a follow-up mechanism that can intelligently adjust the vibration frequency according to the soil depth, and an anti-misadjustment adjustment mechanism that requires special tools to unlock, it achieves precise and stable setting and adaptive anti-blocking for different fertilization depths of cotton and cumin, ensuring the agronomic effect and operational management safety of intercropping fertilization.
[0026] 1. Overall structure and initial state The precise layered intelligent fertilization device includes a follower frame 11 that serves as the main support and traction base, as well as a follower mechanism and an adjustment mechanism integrated thereon. The follower mechanism is used to automatically match the corresponding vibration according to the insertion depth of the furrow opener during the fertilization process to prevent fertilizer blockage. It consists of a depth adjustment component 21 and a vibration component 31. The adjustment mechanism is used to realize the stepless setting and mechanical locking of the working depth of each furrow opener to prevent unauthorized changes. It consists of a telescopic component 41 and a fixing component 51.
[0027] 2. Composition of the core system 2.1 Depth Adjustment Component 21 (Depth Sensing and Transmission Unit) The depth adjustment component 21 is the core of the system that converts the mechanical insertion depth into the transmission speed difference, and is used to sense and transmit working condition information at different depths.
[0028] The component includes multiple sets of vertically arranged discharge pipes 22. Each discharge pipe 22 has an insertion block 23 for breaking soil and opening trenches fixedly installed at its lower end. A striking sleeve 24 is vertically fixed on the side wall of the discharge pipe 22. An intermediate sleeve 25 is rotatably connected to the striking sleeve 24 through a bearing. Multiple follower springs 26 are hinged at equal intervals on the outer wall of the intermediate sleeve 25. The other ends of all the follower springs 26 are connected to a flexible wheel 27. The amount of compression deformation of the flexible wheel 27 directly reflects the soil penetration depth of the insertion block 23.
[0029] 2.2 Vibration Component 31 (Adaptive Anti-blocking Actuation Unit) The vibration component 31 is used to generate mechanical vibration of a corresponding frequency according to the rotation speed signal transmitted by the depth adjustment component 21, so as to overcome the blocking resistance of different soil layers.
[0030] The component includes an intermediate rod 32 coaxially arranged with the intermediate sleeve 25. The intermediate rod 32 extends through the striking sleeve 24 into its internal cavity. Multiple striking blocks 33 are fixed at equal intervals on the inner wall of the striking sleeve 24. The vibrating sleeve 34, which is sleeved on the intermediate rod 32, has multiple sets of spring pieces 35 at equal intervals on its outer wall, corresponding to the positions of the striking blocks 33. An impact rod 36 is installed at the end of each set of spring pieces 35. When the intermediate rod 32 rotates, it drives the vibrating sleeve 34 to rotate, so that each impact rod 36 cyclically strikes the corresponding striking block 33, thereby generating periodic vibration. Each insertion block 23 is provided with two sets of discharge pipes 22. Each set of discharge pipes 22 is connected to a material box 38 fixed on the follower frame 11 through a flexible pipe 37. The interior of each material box 38 is divided into multiple independent chambers by multiple sets of partitions 39 to accommodate different fertilizers for cotton or cumin and corresponding to different flexible pipes 37.
[0031] 2.3 Telescopic component 41 (continuous depth adjustment unit) The telescopic component 41 is used to achieve stepless continuous adjustment of the soil penetration depth of each furrow opener to meet the different agronomic requirements of intercropping crops.
[0032] The component includes multiple circular sleeves 42 that are fixed at equal intervals on the follower frame 11. Each circular sleeve 42 has a semi-circular rod 43 that is slidably connected to it. The lower end of the semi-circular rod 43 is rigidly connected to the corresponding insertion block 23. By pulling the semi-circular rod 43, the extension length of the insertion block 23 relative to the follower frame 11 can be continuously changed, thereby achieving precise setting of its working depth.
[0033] 2.4 Fixing component 51 (special tool unlocking locking unit) The fixing component 51 is used to mechanically lock the set depth and ensure that it can only be readjusted with special tools, preventing misoperation or parameter tampering.
[0034] The component includes multiple lateral sleeves 52 fixed to the outer wall of each circular sleeve 42. A positioning rod 53 is slidably disposed inside each lateral sleeve 52. Multiple positioning holes 54 that mate with the positioning rod 53 are equally spaced on the side wall of the semi-circular rod 43. The outer end of the positioning rod 53 is provided with a handle 55 for easy holding. Two sets of concentric annular locking grooves 56 are formed on the inner wall of the lateral sleeve 52. An outer block 57 and an inner block 58 are respectively slidably disposed in the two sets of locking grooves 56. The outer block 57 and the inner block 58 are controlled by the elastic force of a return spring 59. Pressed against the outer cylindrical surface of the positioning rod 53, the outer block 57 has a through hole 510 and the inner block 58 has a corresponding fixing hole 511. A synchronizing rod 512, which is a special tool component, can pass through the through hole 510 and be inserted into the fixing hole 511 to make the outer block 57 and the inner block 58 move synchronously. The synchronizing rod 512 has a top block 513 and is connected to a synchronizing ring 516 that can slide along the outer wall of the side sleeve 52 through a push spring 514. The tube wall of the side sleeve 52 has a slot 515 for the synchronizing rod 512 to pass through.
[0035] 3. Working process and principle of the device The workflow and core principles of the device, from depth setting to intelligent fertilization, are as follows: S1: Depth setting and special tool lock.
[0036] According to the agronomic requirements of cotton (deep fertilization) and cumin (shallow fertilization), different working depths need to be set for each insertion block 23. During adjustment, the operator must insert the synchronization rod 512 of the special tool into the side sleeve 52 through the slot 515, so that it passes through the through hole 510 on the outer block 57 and is inserted into the fixing hole 511 of the inner block 58, thereby rigidly connecting the outer block 57 and the inner block 58 into one unit. Then, push the synchronization ring 516 forward. The thrust is transmitted through the push spring 514 and the top block 513, pushing the locked outer block 57 and the inner block 58 to slide synchronously along their respective locking grooves 56, so as to release their radial clamping and self-locking on the positioning rod 53. Only then can the outer block be pushed outward. Pull out handle 55 to completely disengage positioning rod 53 from the current positioning hole 54, releasing the lock on semi-circular rod 43. Then, semi-circular rod 43 can be freely pulled out. After adjusting insertion block 23 to the target depth, reinsert positioning rod 53 into side sleeve 52 and have its front end engage the corresponding new positioning hole 54. During insertion, the conical end of positioning rod 53 pushes open outer block 57 and inner block 58. After it is fully in place, outer block 57 and inner block 58 reset under the action of return spring 59, re-locking positioning rod 53 to achieve mechanical self-locking. Finally, pull out synchronization rod 512 to complete depth setting and locking. This design ensures that depth adjustment cannot be performed without special tools.
[0037] S2: Adaptive intelligent vibration anti-blocking.
[0038] During the traction fertilization operation, the insertion blocks 23 and the flexible wheels 27 connected to them at different depths are compressed to different degrees in the soil. The deeper the insertion, the more the flexible wheels 27 are compressed by the soil, and the smaller their effective radius of rotation becomes. When the device moves forward, the flexible wheels 27, which are compressed to different degrees, rotate under the drive of ground friction, and transmit the rotational motion to the intermediate sleeve 25 and the intermediate rod 32 through the follower spring 26. The flexible wheels 27 with smaller radii of rotation (corresponding to deep fertilization points) will drive the intermediate rod 32 to rotate at a higher speed at the same forward speed. Conversely, the intermediate rod 32 corresponding to shallow fertilization points rotates at a lower speed. The high speed of the intermediate rod 32 drives the vibrating sleeve 34 to rotate at high speed, so that the impact rod 36 violently hits the striking block 33 at a high frequency, thereby generating strong vibrations at the deep discharge pipe 22 to effectively break the soil and prevent fertilizer bridging and blockage. Meanwhile, the shallow fertilization points generate matching vibrations with lower intensity, realizing intelligent matching between vibration anti-blockage intensity and fertilization depth resistance.
[0039] Working principle summary: The core of this invention lies in converting the mechanical insertion depth information into the rotational speed difference of the intermediate rod 32 through the compression deformation of the flexible wheel 27, thereby adaptively adjusting the vibration anti-blocking intensity of each fertilization point. At the same time, the mechanical linkage locking mechanism, which requires special tools, ensures the stability and anti-tampering capability of the pre-fertilization depth, providing a precise, reliable and intelligent layered fertilization solution for cotton and cumin intercropping.
[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A precise, layered, intelligent fertilization device for cotton-cumin intercropping, characterized by: It includes a follower frame (11), a follower mechanism, and an adjustment mechanism; The follow-up mechanism includes a depth adjustment component (21) and a vibration component (31). The follow-up mechanism can generate a corresponding knocking frequency according to different soil layer thicknesses, which avoids blockage during material discharge and improves the smoothness of material discharge. The depth adjustment component (21) allows the whole to adjust its vibration frequency according to the thickness of the soil layer it enters, thereby improving the performance of the product. The vibration component (31) ensures that appropriate vibrations are generated during the fertilization process to avoid fertilizer blockage and improve the smoothness of discharge. The adjustment mechanism includes a telescopic component (41) and a fixed component (51). The adjustment mechanism ensures that the operator can only adjust the position when holding the corresponding unlocking tool, thereby improving the safety of use. The telescopic component (41) ensures the continuity of soil layer adjustment and also ensures the effect of fertilization. The fixing component (51) makes it so that it can only be unlocked by a designated person, thus avoiding accidental operation by others.
2. The precise stratified intelligent fertilization device for cotton-cumin intercropping according to claim 1, characterized in that: The depth adjustment component (21) includes a discharge pipe (22), and an insertion block (23) is provided at the lower end of the discharge pipe (22). A striking sleeve (24) is vertically provided on the side wall of the discharge pipe (22). An intermediate sleeve (25) is provided on the upper limit of the striking sleeve (24). A plurality of follower springs (26) are installed at equal intervals on the outer wall of the intermediate sleeve (25). The other end of the plurality of follower springs (26) is connected to a flexible wheel (27).
3. The precise stratified intelligent fertilization device for cotton-cumin intercropping according to claim 2, characterized in that: The vibration mechanism includes an intermediate rod (32) coaxially arranged with the intermediate sleeve (25), and the intermediate rod (32) passes through the striking sleeve (24). Multiple striking blocks (33) are installed at equal intervals inside the striking sleeve (24), and a vibration sleeve (34) is sleeved on the intermediate rod (32).
4. The precise stratified intelligent fertilization device for cotton-cumin intercropping according to claim 3, characterized in that: Multiple sets of springs (35) corresponding to the striking block (33) are installed at equal intervals on the outer wall of the vibration sleeve (34). Each set of springs (35) has an impact rod (36) on the side away from the vibration sleeve (34). As the middle rod (32) rotates, multiple impact rods (36) will cyclically strike the striking block (33) to generate vibration and prevent fertilizer blockage.
5. The precise stratified intelligent fertilization device for cotton-cumin intercropping according to claim 2, characterized in that: Each of the insertion blocks (23) is provided with two sets of discharge pipes (22), and each set of discharge pipes (22) is connected to a flexible pipe (37). The follower frame (11) is fixedly provided with a material box (38), and the flexible pipes (37) are connected to the material boxes (38). Each material box (38) is provided with multiple sets of partitions (39), and the multiple sets of partitions (39) separate multiple sets of adjacent flexible pipes (37) into separate spaces.
6. The precise stratified intelligent fertilization device for cotton-cumin intercropping according to claim 2, characterized in that: The telescopic assembly (41) includes multiple circular sleeves (42) that are fixedly installed at equal intervals on the follower frame (11). Each circular sleeve (42) is slidably connected to a semi-circular rod (43), and the insertion block (23) is connected to the semi-circular rod (43).
7. The precise stratified intelligent fertilization device for cotton-cumin intercropping according to claim 6, characterized in that: The fixing component (51) includes a side sleeve (52). Multiple side sleeves (52) are fixedly and equidistantly arranged on the outer wall of each circular sleeve (42). A positioning rod (53) is slidably arranged inside each side sleeve (52). Multiple positioning holes (54) are opened at equal intervals on the side wall of each semi-circular rod (43). The positioning rod (53) is inserted into the positioning hole (54). A handle (55) is coaxially arranged on the positioning rod (53).
8. The precise stratified intelligent fertilization device for cotton-cumin intercropping according to claim 7, characterized in that: The inner wall of the side sleeve (52) is provided with two sets of locking grooves (56) arranged along the circumference. Multiple outer blocks (57) and inner blocks (58) are respectively limited and slidably arranged in the two sets of locking grooves (56). Reset springs (59) are respectively provided on the inner blocks (58) and the outer blocks (57). The reset springs (59) abut against the inner wall of the side sleeve (52). Multiple outer blocks (57) and inner blocks (58) abut against the outer wall of the positioning rod (53).
9. The precise stratified intelligent fertilization device for cotton-cumin intercropping according to claim 8, characterized in that: Multiple outer blocks (57) are provided with through holes (510), and multiple inner blocks (58) are provided with fixing holes (511). A synchronizing rod (512) is slidably provided in the through hole (510), and the synchronizing rod (512) is inserted into the fixing hole (511). Each synchronizing rod (512) is provided with a top block (513), and the top block (513) abuts against the outer block (57).
10. A precise stratified intelligent fertilization device for cotton-cumin intercropping according to claim 9, characterized in that: Each of the top blocks (513) is provided with a push spring (514), and the side sleeve (52) has multiple sets of slots (515) corresponding to the synchronizing rod (512), and the multiple push springs (514) pass through the corresponding slots (515) and are connected to the synchronizing ring (516).