Modular multi-functional tillage depth adjustment device

Abstract

This utility model relates to the field of agricultural equipment, and more particularly to a modular multifunctional tillage depth adjustment device, including an installation frame and a sleeve. A sliding frame is fixedly installed at the rear end of the installation frame, and an installation platform is fixedly installed at the right end of the sliding frame. The sleeve is fixedly connected to the installation platform. A first lead screw is rotatably connected inside the sleeve, and a first knob is rotatably connected to the right end of the sleeve. The first knob is fixedly connected to the first lead screw and is used to drive the first lead screw to rotate. This utility model, by setting the first knob, drives the first lead screw to rotate, and the sleeve restricts the rotation of the telescopic cylinder and causes axial displacement. Through a rigid connecting block, the right movable end of the scissor-type folding frame moves around the central fixed seat. When the central node is locked, the two movable seats on both sides expand or contract symmetrically, precisely controlling the tillage depth adjustment module and simultaneously adjusting the lateral spacing of multiple sets of tillage devices to improve efficiency.

Description

Technical Field

[0001] This utility model relates to the field of agricultural equipment, and in particular to a modular multifunctional tillage depth adjustment device. Background Technology

[0002] The modular multi-functional tillage depth adjustment device is an agricultural machinery equipment equipped with a quick-change blade assembly. It is suitable for complex terrains such as ridge cultivation or slopes, and can achieve soil turning, soil breaking and moisture retention, and weeding and stubble pressing effects, thereby reducing the energy consumption of agricultural machinery operations and improving the uniformity of crop emergence.

[0003] Existing modular multi-functional tillage depth adjustment devices suffer from low field operation efficiency, uneven tillage depth leading to crop yield reduction, and poor adaptability to complex terrain because the lateral spacing of multiple tillage units needs to be manually adjusted one by one and there is a lack of synchronous positioning mechanism.

[0004] Therefore, in view of the problem of low efficiency caused by the lack of a synchronous positioning mechanism for multiple sets of tillage units in the existing modular multi-functional tillage depth adjustment device, there is an urgent need to design a new type of modular multi-functional tillage depth adjustment device. Utility Model Content

[0005] In order to overcome the problem of low efficiency caused by the lack of synchronous positioning mechanism for multiple sets of tillage units in the existing modular multi-functional tillage depth adjustment device.

[0006] The technical solution of this utility model is as follows: a modular multi-functional tillage depth adjustment device, including an installation frame; and a sleeve. A sliding frame is fixedly installed at the rear end of the installation frame, and an installation platform is fixedly installed at the right end of the sliding frame. The sleeve is fixedly connected to the installation platform. A first lead screw is rotatably connected inside the sleeve, and a first knob is rotatably connected to the right end of the sleeve. The first knob is fixedly connected to the first lead screw, and the first knob is used to drive the first lead screw to rotate. A telescopic cylinder is threadedly connected to the outer surface of the first lead screw. When the first lead screw rotates, it drives the telescopic cylinder to move. A limiting rod is fixedly installed on the part, and a fixed seat is fixedly installed at the middle position of the outer surface of the limiting rod. Two movable seats are slidably connected to the left and right sides of the outer surface of the limiting rod. A scissor-type folding frame is fixedly connected to the upper end of the fixed seat. The lower end of the scissor-type folding frame is fixedly connected to the upper end of the four movable seats. A connecting plate is fixedly installed on the upper right side of the scissor-type folding frame. The left end of the telescopic cylinder is fixedly connected to the right end of the connecting plate. A main connecting arm is fixedly installed at the lower end of both the fixed seat and the movable seats. A quick installation module is set at the lower end of the main connecting arm. A tillage depth adjustment module is set at the lower end of the quick installation module.

[0007] Preferably, by setting a first knob, the first knob drives the first lead screw to rotate. When the first lead screw rotates, it restricts the rotation of the telescopic cylinder through the sleeve, thereby pushing the telescopic cylinder to generate axial displacement. The telescopic cylinder pulls the right movable end of the scissor-type folding frame through the rigid connecting block, forcing it to move around the central fixed seat. Since the central node of the scissor-type folding frame is rigidly locked to the fixed seat, the telescopic movement of the scissor-type folding frame will synchronously drive the movable seats on both sides to expand or contract at equal intervals around the fixed seat as the center of symmetry. This will accurately control the group posture of the tillage depth adjustment module, thereby achieving the goal of synchronously adjusting the lateral distribution spacing of multiple sets of tillage devices and greatly improving the work efficiency. This solves the problems of low field work efficiency, uneven tillage depth leading to crop yield reduction, and poor adaptability to complex terrain caused by the need to manually adjust the lateral spacing of multiple sets of tillage units and the lack of a synchronous positioning mechanism in existing modular multi-functional tillage depth adjustment devices.

[0008] Preferably, the tillage depth adjustment module includes a second knob, a movable frame is provided at the lower end of the main connecting arm, the second knob is rotatably connected to the movable frame, and a transmission component is provided inside the movable frame.

[0009] Preferably, the transmission component includes a second lead screw, which is rotatably connected to the movable frame and fixedly connected to a second knob. The second knob is used to drive the second lead screw to rotate, and a sliding element is provided on the outer surface of the second lead screw.

[0010] Preferably, the sliding element includes a plowshare, which is threadedly connected to a second lead screw. When the second lead screw rotates, it drives the plowshare to move.

[0011] Preferably, the quick-installation module includes a secondary connecting arm, a connecting groove is provided on the lower right side of the main connecting arm, the connecting groove is slidably connected to the secondary connecting arm module, a sliding groove is provided on the right front side of the main connecting arm, a baffle is slidably connected inside the sliding groove, and the lower end of the secondary connecting arm is fixedly connected to the upper end of the movable frame.

[0012] Preferably, symmetrical mounting brackets are fixedly installed on the lower front side of the mounting frame, and wheels are rotatably connected to the inside of the two mounting brackets.

[0013] Preferably, a connecting seat is fixedly installed on the upper front side of the mounting frame, and a bolt is slidably connected inside the connecting seat, with a nut threaded on the lower side of the outer surface of the bolt.

[0014] The beneficial effects of this utility model are:

[0015] 1. By setting the first knob to drive the first lead screw to rotate, under the constraint of the sleeve, the first lead screw pushes the telescopic cylinder to move axially. The telescopic cylinder pulls the right movable end of the scissor-type folding frame through the rigid connecting block, forcing it to move around the central fixed seat. Since the central node is locked with the fixed seat, the telescopic movement of the scissor-type folding frame drives the movable seats on both sides to move bidirectionally at equal distances around the fixed seat, realizing efficient and precise control of the group posture of the tillage depth adjustment module, and ensuring the consistency of the lateral distribution spacing of multiple sets of tillage devices.

[0016] 2. By setting a second knob, the second lead screw is driven to rotate. When the second lead screw rotates, it drives the plow head to move axially under the constraint of the moving frame. This mechanism realizes direct and precise adjustment of the plow head's tillage depth. It is easy to operate and meets different soil conditions and agronomic requirements. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the modular multifunctional tillage depth adjustment device of this utility model.

[0018] Figure 2 The diagram shown is a schematic representation of the structure of the fixed base of the modular multifunctional tillage depth adjustment device of this utility model.

[0019] Figure 3 The diagram shown is a schematic representation of the movable frame structure of the modular multifunctional tillage depth adjustment device of this utility model.

[0020] Figure 4 The diagram shown is a schematic representation of the sliding frame structure of the modular multifunctional tillage depth adjustment device of this utility model.

[0021] Figure 5 The diagram shown is a schematic of the main connecting arm of the modular multi-functional tillage depth adjustment device of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Mounting frame; 2. Sliding frame; 3. Mounting platform; 4. Sleeve; 5. First lead screw; 6. First knob; 7. Telescopic cylinder; 8. Limiting rod; 9. Fixed seat; 10. Movable seat; 11. Scissor-type folding frame; 12. Connecting plate; 13. Main connecting arm; 14. Moving frame; 15. Second knob; 16. Second lead screw; 17. Plowhead; 18. Connecting groove; 19. Secondary connecting arm; 20. Slide groove; 21. Baffle; 22. Mounting bracket; 23. Wheel; 24. Connecting seat; 25. Bolt; 26. Nut. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] In the cultivation and management of crops and fruit trees, soil, as the fundamental carrier of life activities, has a decisive influence on crop growth, development, and yield formation through its physical structure and chemical properties. However, under the long-term effects of natural rainfall, irrigation, agricultural operations, and the activities of plant roots, the soil in planting areas inevitably tends to become compacted and compacted. This deterioration of soil structure is mainly manifested in the reduction of interparticle spaces and decreased porosity. The direct consequences are a significant reduction in soil aeration, hindering the supply of oxygen required for root respiration; poor permeability, making it difficult for rainfall or irrigation water to infiltrate and easily forming surface runoff, preventing the effective storage of valuable freshwater resources in the soil; and weakened water retention capacity, making crops more susceptible to water shortage stress during dry seasons. More importantly, compacted soil greatly inhibits the development potential of the root system, making it difficult for roots to penetrate the hard soil layer to grow deep downwards or extend laterally, resulting in a severe limitation of the overall surface area for absorbing water and mineral nutrients, thereby affecting the overall growth vigor, stress resistance, and final economic yield of the plant. Furthermore, topsoil often accumulates large amounts of pathogenic spores, insect eggs, dormant weed seeds, and crop residues accumulated over the years; and if applied organic fertilizers or base fertilizers are not evenly mixed with the soil, their nutrient release efficiency is difficult to guarantee. Therefore, regular and effective soil tillage has become a core agricultural measure for breaking up soil compaction and restoring and optimizing soil structure. The core functions of tillage are: to break up and loosen the soil through physical force, reconstructing a porous system conducive to water and air exchange and root penetration, and improving the soil's air conduction, water permeability, and water retention; to create a deep, loose environment, providing ideal conditions for roots to extend in a wider three-dimensional space, and strengthening the plant's ability to acquire water and nutrients; to bury or cut and destroy the topsoil rich in pests, diseases, and weeds, as well as crop residues, effectively reducing the base number of pathogens and pests, and physically inhibiting weed seed germination; at the same time, this process also promotes the uniform mixing of fertilizers (especially organic fertilizers and base fertilizers) with the soil, improving nutrient utilization efficiency, and can moderately turn over the lower layer of mineral-rich but not fully weathered soil to the top, increasing the supply of effective nutrients;

[0025] To efficiently carry out tillage operations, humans have invented and widely applied various tillage machines, collectively known as tillage devices or tillage implements. With technological advancements, these devices have evolved from early hoes, picks, and plows that relied on human and animal power to various high-efficiency models used with modern power sources (mainly tractors). Currently, widely used tractor-mounted tillage devices mainly include: rotary tillers, whose core function is to drive a cutter shaft to rotate at high speed via the tractor's power take-off shaft. Rigid or elastic blades mounted on the shaft cut, break, and throw the soil, completing soil breaking, mixing, and leveling in a single operation. They are characterized by moderate working depth (usually 10-20 cm), good soil breaking effect, and high surface smoothness; and plows, which are historically significant and still very important tillage devices. They consist of sharp plowshares and plowshares that lift and turn the soil clods. Drawn by a tractor, they cut, lift, and turn the soil, with the main feature being their ability to achieve deeper tillage (generally 15 cm). The deep tillage machine, characterized by its robust, toothed or arrow-shaped shovels, loosens the soil without turning over the clods, creating fissures and loosening the deeper soil layers (such as below the plow pan) to a depth of 30-50 cm or even deeper. This significantly improves the deep soil physical structure, breaks down the limitations of the plow pan on root penetration, and enhances rainwater infiltration and storage capacity. It is particularly suitable for conservation tillage that requires deep tillage but does not want to excessively disturb the topsoil organic matter layer and microbial community. These different tillage devices are adapted to different soil conditions, tillage goals, and crop growth cycles.

[0026] A thorough analysis of the practical applications of various tillage devices reveals that tillage depth is a crucial operational parameter, requiring precise selection and adjustment based on a variety of complex agronomic and environmental conditions. This necessity for precise control of tillage depth is reflected in several core aspects: First,

[0027] Crop characteristics determine differences in root system requirements. Different crops, and even different varieties, exhibit significant differences in root distribution characteristics and the depth of the main absorption layer. For example, many herbaceous vegetables or cereal crops have shallow root systems, typically forming their main absorption network within the 10-20 cm soil layer. Excessive tillage is not only unhelpful but may also damage the shallow rhizosphere environment. Conversely, some fruit trees, perennial cash crops, or deep-rooted field crops require deeper tillage layers to meet the space requirements for the development of their strong, deep root systems, ensuring a stable supply of nutrients and water. Secondly, crop growth stages are sensitive to depth. The tolerance of the same crop to disturbance near the root system varies drastically at different growth stages. During the seedling stage or early transplanting period, the root system is weak and concentrated in the shallow layer. At this time, shallow tillage helps break up surface compaction, retain moisture, remove weeds, and avoid root damage. However, during land preparation before sowing or transplanting, or during field clearing and fallow periods after harvest, relatively deeper tillage can be implemented to create a deeper and broader space for root development and soil nutrient mineralization. Third, soil type and structure have a fundamental impact on the appropriate tillage depth. Well-structured, loose, fertile, and deep loam allows for and may benefit from deeper tillage. However, for heavy, compacted soils, although it is necessary to break up the compacted layer, excessively deep tillage in one go may turn up the low-fertility subsoil to the surface, thus reducing the overall fertility of the topsoil. Gradual improvement is necessary. Deep tillage in sandy soils is beneficial for water retention but requires protection against wind erosion. Fourth, specific agricultural objectives determine the choice of depth. For example, shallow tillage is suitable for weeding, breaking up crusts after rain, and applying topdressing during the seedling stage. Intermediate tillage is suitable for land preparation before sowing of most crops, including burying green manure and straw, and applying base fertilizer. Deep tillage is suitable for burying large amounts of organic fertilizer, applying slow-release base fertilizer, thoroughly eradicating root-borne weeds, controlling soil-borne diseases and pests caused by deep tillage, breaking up the plow pan to improve deep aeration and water permeability, and loosening the soil to retain moisture. In some conservation tillage systems, no-till or reduced tillage may even be adopted. Fifth, topography and environmental constraints also affect depth control. For example, on slopes, to conserve soil and water and reduce erosion risks, tillage depth usually needs to be moderately controlled or combined with contour tillage. Within protected areas, due to space and underground facilities, tillage depth has a strict upper limit. Rice-dryland rotation fields may also have different depth requirements. Finally, operational efficiency and energy consumption control are also key considerations, as tillage depth is the most significant factor affecting the traction resistance of tillage machinery. Increased depth typically requires exponential growth in traction force, significantly increasing energy consumption. Precisely controlling the tillage depth at the most reasonable level that meets agronomic requirements is key to reducing fuel consumption, saving operating costs, and improving economic efficiency. Therefore, for tillage devices serving diversified and refined agricultural production, equipping them with flexible and precise tillage depth adjustment capabilities is crucial. This requires meeting requirements such as a sufficiently wide adjustment range (covering from shallow to deep tillage), sufficiently high precision (centimeter-level setting), and convenient and reliable adjustment to accurately adapt to complex and changing production situations, avoiding ineffective tillage, root damage and yield reduction, energy waste, or soil erosion, and achieving scientific and precise management.

[0028] Therefore, for any tillage device designed to serve diversified and refined agricultural production, simply having a tillage function is far from sufficient. It must be equipped with the ability to flexibly and precisely adjust the tillage depth. This adjustment function needs to meet the following requirements: a sufficiently wide range to accommodate different needs from shallow to deep tillage (e.g., from 5 cm to over 30 cm); high enough precision to allow for precise setting and control of the depth at the centimeter level to ensure strict adherence to predetermined agronomic requirements; and a relatively convenient and reliable adjustment process, ideally operable manually / hydraulically from the operator's cab during field operations or preparation stages, without requiring frequent component replacements or complex disassembly and adjustments. Only when the tillage device possesses this efficient and precise depth adjustment capability can it best adapt to complex and changing production situations, ensuring that every tillage operation precisely serves the expected soil structure improvement goals, avoiding negative consequences such as ineffective tillage, root damage and yield reduction, energy waste, or soil erosion caused by improper depth, and truly achieving scientific management, precision operation, and sustainable agricultural production.

[0029] Please see Figures 1-5This utility model provides an embodiment of a modular multifunctional tillage depth adjustment device, including an installation frame 1 and a sleeve 4. A sliding frame 2 is fixedly installed at the rear end of the installation frame 1, and an installation platform 3 is fixedly installed at the right end of the sliding frame 2. The sleeve 4 is fixedly connected to the installation platform 3. A first lead screw 5 is rotatably connected inside the sleeve 4, and a first knob 6 is rotatably connected to the right end of the sleeve 4. The first knob 6 is fixedly connected to the first lead screw 5 and is used to drive the first lead screw 5 to rotate. A telescopic cylinder 7 is threadedly connected to the outer surface of the first lead screw 5. When the first lead screw 5 rotates, it drives the telescopic cylinder 7 to move. A limit rod 8 is fixedly installed inside the sliding frame 2. A fixed seat 9 is fixedly installed at the middle position of the outer surface of the limit rod 8. Two movable seats 10 are slidably connected to the left and right sides of the outer surface of the limit rod 8. A scissor-type folding frame 11 is fixedly connected to the upper end of the fixed seat 9. The lower end of the scissor-type folding frame 11 is fixedly connected to the upper end of the four movable seats 10. A connecting plate 12 is fixedly installed on the upper right side. The left end of the telescopic cylinder 7 is fixedly connected to the right end of the connecting plate 12. The lower ends of the fixed seat 9 and the movable seat 10 are both fixedly installed with a main connecting arm 13. A quick installation module is set at the lower end of the main connecting arm 13. A tillage depth adjustment module is set at the lower end of the quick installation module. By setting a first knob 6, the first knob 6 drives the first lead screw 5 to rotate. When the first lead screw 5 rotates, the rotation of the telescopic cylinder 7 is restricted by the sleeve 4, thereby pushing the telescopic cylinder 7 to generate axial displacement. The telescopic cylinder 7 pulls the right movable end of the scissor folding frame 11 through the rigid connecting block, forcing it to move around the central fixed seat 9. Since the central node of the scissor folding frame 11 is rigidly locked with the fixed seat 9, the telescopic movement of the scissor folding frame 11 will synchronously drive the movable seats 10 on both sides to expand or contract at equal intervals with the fixed seat 9 as the center of symmetry. This will accurately control the group posture of the tillage depth adjustment module, thereby achieving the purpose of synchronously adjusting the lateral distribution spacing of multiple sets of tillage devices and greatly improving the work efficiency.

[0030] Please see Figures 1-3In this embodiment, the tillage depth adjustment module includes a second knob 15. A movable frame 14 is provided at the lower end of the main connecting arm 13. The second knob 15 is rotatably connected to the movable frame 14. A transmission component is provided inside the movable frame 14. The transmission component includes a second lead screw 16, which is rotatably connected to the movable frame 14. The second lead screw 16 is fixedly connected to the second knob 15. The second knob 15 is used to drive the second lead screw 16 to rotate. A sliding component is provided on the outer surface of the second lead screw 16. The sliding component includes a plow head 17, which is threadedly connected to the second lead screw 16. When the second lead screw 16 rotates, it drives the plow head 17 to move. By setting the second knob 15, rotating the second knob 15 drives the second lead screw 16 to rotate. When the second lead screw 16 rotates, the rotation of the plow head 17 is restricted by the movable frame 14, thereby driving the plow head 17 to move, so as to achieve the purpose of adjusting the tillage depth by extending the plow head 17.

[0031] Please see Figures 1-5 In this embodiment, the quick-installation module includes a secondary connecting arm 19. A connecting groove 18 is provided on the lower right side of the main connecting arm 13, and the connecting groove 18 is slidably connected to the secondary connecting arm 19. A sliding groove 20 is provided on the right front side of the main connecting arm 13, and a baffle 21 is slidably connected inside the sliding groove 20. The lower end of the secondary connecting arm 19 is fixedly connected to the upper end of the movable frame 14. By providing the connecting groove 18, workers can quickly install or disassemble the tillage depth adjustment module using the secondary connecting arm 19. Furthermore, by providing the sliding groove 20 and the baffle 21, after the secondary connecting arm 19 is inserted into the connecting groove 18, the baffle 21 is placed back into the sliding groove 20, thereby fixing the position of the secondary connecting arm 19 and achieving modular installation. The lower front end of the mounting frame 1 is fixedly equipped with symmetrical mounting brackets 22. The two mounting brackets 22 are rotatably connected to wheels 23. By setting the wheels 23, the operator can easily move the entire equipment and facilitate its operation in conjunction with other agricultural machinery, thereby improving its usability. The upper front end of the mounting frame 1 is fixedly equipped with a connecting seat 24. The connecting seat 24 is slidably connected to a bolt 25. The lower surface of the bolt 25 is threaded with a nut 26. By setting the connecting seat 24, it overlaps with the connection parts of other agricultural machinery, and then the bolt 25 is inserted to connect the two. Finally, the nut 26 is tightened to fix the position and prevent it from falling off during operation.

[0032] During operation, the first knob 6 is turned to drive the telescopic cylinder 7 to generate axial displacement. The telescopic cylinder 7 pushes the connecting plate 12 to move the right movable end of the scissor-type folding frame 11, thereby controlling the lateral spacing of all main connecting arms 13. The second knob 15 is turned to drive the plow head 17 to move up and down along the second lead screw 16 to adjust the tillage depth. The tillage depth adjustment module is inserted into the connecting groove 18 of the main connecting arm 13 through the auxiliary connecting arm 19 and is limited and fixed in the slide groove 20 by the baffle 21, realizing modular disassembly and assembly. The mounting frame 1 is connected to other agricultural machinery through the connecting seat 24, bolts 25 and nuts 26. The wheels 23 on the mounting bracket 22 facilitate overall movement.

[0033] Through the above steps, rotating the first knob 6 drives the first lead screw 5 to rotate. Since the sleeve 4 restricts the rotation of the telescopic cylinder 7, the telescopic cylinder 7 is forced to only produce axial displacement. This displacement is transmitted to the right movable end of the scissor folding frame 11 through the rigid connecting block, causing it to move around the central fixed seat 9. Since the central node of the scissor folding frame 11 is rigidly locked by the fixed seat 9, the entire scissor folding frame 11 synchronously drives the movable seats 10 on both sides to contract or expand at equal intervals around the fixed seat 9. This linkage precisely controls the group posture of the tillage depth adjustment module, thereby synchronously adjusting the lateral working distance of multiple sets of tillage devices, greatly improving tillage efficiency. This solves the problem that existing modular multi-functional tillage depth adjustment devices have low field operation efficiency, uneven tillage depth leading to crop yield reduction, and poor adaptability to complex terrain because the lateral distance of multiple sets of tillage units needs to be manually adjusted one by one and there is no synchronous positioning mechanism.

Claims

1. Modular multifunctional depth adjustment device for tillage, comprising a mounting frame (1); characterized by the fact that: It also includes a sleeve (4), a sliding frame (2) fixedly installed at the rear end of the mounting frame (1), an mounting platform (3) fixedly installed at the right end of the sliding frame (2), a sleeve (4) fixedly connected to the mounting platform (3), a first lead screw (5) rotatably connected inside the sleeve (4), a first knob (6) rotatably connected at the right end of the sleeve (4), the first knob (6) fixedly connected to the first lead screw (5), the first knob (6) is used to drive the first lead screw (5) to rotate, a telescopic cylinder (7) is threadedly connected to the outer surface of the first lead screw (5), when the first lead screw (5) rotates, it drives the telescopic cylinder (7) to move, a limit rod (8) is fixedly installed inside the sliding frame (2), the limit rod (8) A fixed seat (9) is fixedly installed in the middle of the outer surface of the limiting rod (8). Two movable seats (10) are slidably connected to the left and right sides of the outer surface of the limiting rod (8). A scissor-type folding frame (11) is fixedly connected to the upper end of the fixed seat (9). The lower end of the scissor-type folding frame (11) is fixedly connected to the upper end of the four movable seats (10). A connecting plate (12) is fixedly installed on the right side of the upper end of the scissor-type folding frame (11). The left end of the telescopic cylinder (7) is fixedly connected to the right end of the connecting plate (12). A main connecting arm (13) is fixedly installed at the lower end of both the fixed seat (9) and the movable seats (10). A quick installation module is provided at the lower end of the main connecting arm (13). A tillage depth adjustment module is provided at the lower end of the quick installation module.

2. The modular multi-functional depth adjustment device of claim 1, wherein: The tillage depth adjustment module includes a second knob (15), a movable frame (14) is provided at the lower end of the main connecting arm (13), the second knob (15) is rotatably connected to the movable frame (14), and a transmission component is provided inside the movable frame (14).

3. The modular multi-functional depth adjustment device of claim 2, wherein: The transmission component includes a second lead screw (16), which is rotatably connected to the movable frame (14). The second lead screw (16) is fixedly connected to a second knob (15), which is used to drive the second lead screw (16) to rotate. A sliding element is provided on the outer surface of the second lead screw (16).

4. The modular multifunctional tillage depth adjustment device according to claim 3, characterized in that: The sliding component includes a plowshare (17), which is threadedly connected to a second lead screw (16). When the second lead screw (16) rotates, it drives the plowshare (17) to move.

5. The modular multifunctional tillage depth adjustment device according to claim 2, characterized in that: The quick-installation module includes a secondary connecting arm (19), a connecting groove (18) is provided on the lower right side of the main connecting arm (13), the connecting groove (18) is slidably connected to the secondary connecting arm (19), a sliding groove (20) is provided on the right front side of the main connecting arm (13), a baffle (21) is slidably connected inside the sliding groove (20), and the lower end of the secondary connecting arm (19) is fixedly connected to the upper end of the movable frame (14).

6. The modular multifunctional tillage depth adjustment device according to claim 1, characterized in that: The lower front end of the mounting frame (1) is fixedly mounted with symmetrical mounting brackets (22), and the two mounting brackets (22) are rotatably connected to wheels (23).

7. The modular multifunctional tillage depth adjustment device according to claim 1, characterized in that: A connecting seat (24) is fixedly installed on the upper front side of the mounting frame (1). A bolt (25) is slidably connected inside the connecting seat (24), and a nut (26) is threaded on the lower side of the outer surface of the bolt (25).

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