Multifunctional integrated seeder

Abstract

The invention relates to the technical field of seeding machines, in particular to a multifunctional integrated seeding machine which comprises a machine frame, the machine frame comprises a front machine frame and a rear machine frame, the rear machine frame comprises an upper machine frame and a lower machine frame, one end of the upper machine frame is fixedly connected with the front machine frame, and the other end of the upper machine frame is movably connected with the upper portion of an adjusting mechanism. One end of the lower rack is movably connected with the front rack, and the other end of the lower rack is movably connected with the lower part of the adjusting mechanism; the rotary tillage mechanism is connected with the front rack; the fertilizing mechanism is connected with the front rack and located above the rotary tillage mechanism; the seeding mechanism is connected with the lower rack through a first connecting rod; and the pressing mechanism is connected with the lower rack through a second connecting rod. The multifunctional seeding machine integrates multiple functions of ploughing, ditching, seeding, fertilizing, soil covering, pressing and the like, and the seeding efficiency of crops is remarkably improved; the self-adaptive adjusting function is achieved, and the consistency of the seeding depth under different field surface conditions is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of seeder technology, and in particular to a multi-functional integrated seeder. Background Technology

[0002] Sowing is a crucial step in crop cultivation, and its quality directly affects the germination rate, growth uniformity, and final yield of subsequent crops. Existing sowing equipment is insufficient to fully meet the complex and precise planting needs and still has many shortcomings.

[0003] First, traditional sowing equipment often only has a single seed metering function, while crop sowing often requires multiple steps such as tilling, ditching, sowing, fertilizing, covering, and compacting. Farmers need to equip themselves with a variety of agricultural machinery such as rotary tillers, seeders, and fertilizer applicators, which not only increases the cost of equipment purchase and storage pressure, but also makes field operations cumbersome and requires multiple trips to the field, reducing work efficiency.

[0004] Secondly, my country's farmland is complex. Except for some high-standard farmland in plains areas, most plots suffer from uneven terrain, localized depressions or protrusions due to factors such as topography, irrigation, and farming history. Existing seeders mostly have fixed-height seeding mechanisms, lacking flexible adaptive adjustment functions. When operating on uneven fields, the relative height between the seeding mechanism and the field surface fluctuates with the terrain, resulting in inconsistent seeding depth and uneven seedling quality. Sowing too deep leads to insufficient oxygen and light for seed germination, and increased resistance to soil penetration, easily causing delayed emergence, weak seedlings, or even no emergence at all. Sowing too shallow makes seeds susceptible to drought and pests, and shallow root penetration results in poor lodging resistance later on. Ultimately, this leads to uneven crop emergence and significant differences in growth patterns, severely restricting crop yield increases. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a multi-functional integrated seeder that combines tillage, ditching, sowing, fertilization, soil covering, and compaction into one machine, significantly improving crop sowing efficiency. Furthermore, this seeder features an adaptive adjustment function, where the sowing mechanism automatically adjusts its height according to the unevenness, depressions, or protrusions of the field surface, ensuring a stable relative height between the sowing mechanism and the field surface. This results in uniform sowing depth, effectively improving seedling quality and avoiding problems such as delayed emergence, weak seedlings, failure to emerge, and poor lodging resistance caused by improper sowing depth, thus significantly increasing crop yield.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a multi-functional integrated seeder, including a frame, the frame including a front frame and a rear frame, the rear frame including an upper frame and a lower frame, one end of the upper frame being fixedly connected to the front frame and the other end being movably connected to the upper part of the adjustment mechanism, one end of the lower frame being movably connected to the front frame and the other end being movably connected to the lower part of the adjustment mechanism; Rotary tillage mechanism, connected to the front frame; The fertilization mechanism is connected to the front frame and is located above the rotary tillage mechanism; The sowing mechanism is connected to the lower frame via a first connecting rod. The sowing mechanism includes a plurality of seeders and a first connecting seat for fixing the seeders. The first connecting seat is movably connected to the first connecting rod. The pressing mechanism is connected to the lower frame via a second connecting rod. The pressing mechanism includes a plurality of pressing wheels and a second connecting seat for fixing the pressing wheels. The pressing wheels are correspondingly arranged with the seeder, and the second connecting seat is movably connected to the second connecting rod. The trenching mechanism is located on both sides of the frame.

[0007] Furthermore, the fertilization mechanism includes a fertilizer box and a conveying auger. The bottom of the fertilizer box is provided with a groove that is consistent with the length direction of the fertilizer box. The conveying auger is located in the groove. The bottom of the groove is provided with a plurality of discharge ports. Above the conveying auger, a plurality of spaced-apart first sleeves are provided, and the first sleeves are corresponding to the discharge ports.

[0008] Furthermore, along the circumferential direction of the pressing wheel, a plurality of rubber sheets are provided on the surface of the pressing wheel. One end of each rubber sheet is fixedly connected to the pressing wheel, and the other end is attached to the surface of the pressing wheel along the circumferential direction. The length of each rubber sheet is 0.8-1.8 times the radius of the pressing wheel.

[0009] Furthermore, a double-disc furrow opener is provided below the seeder, and the discharge port of the seeder is located between the two discs of the double-disc furrow opener. The double-disc furrow opener is fixedly connected to the first connecting seat.

[0010] Furthermore, two sets of the fertilization mechanism are symmetrically arranged, and the fertilization mechanism is inclined along the width direction of the frame, with an inclination angle of less than 15°.

[0011] Furthermore, the diameter of the conveying auger is 10-20cm, and the diameter of the first sleeve is 1-1.3 times the outer diameter of the conveying auger.

[0012] Furthermore, along the width direction of the frame, two sets of rear frames are symmetrically arranged, and plow plates are provided on the inner side of the two sets of rear frames.

[0013] Furthermore, the adjustment mechanism includes a first adjustment rod, a second sleeve, and a telescopic spring. The telescopic spring is sleeved on the outside of the first adjustment rod, the second sleeve is sleeved on one end of the first adjustment rod and connected to the upper frame, and the lower end of the first adjustment rod is hinged to the lower frame.

[0014] Furthermore, a limiting rod is provided on the outer side of the rear frame, the upper end of the limiting rod is adjustablely connected to the upper frame, and the lower end of the limiting rod is hinged to the lower frame.

[0015] Furthermore, the second connecting rod is connected to the lower frame, and the first connecting rod is connected to the lower frame via the second adjusting rod; the front frame is provided with a lateral limiting seat to limit the movement of the lower frame in the width direction of the frame, and the lateral limiting seat is movably connected to the lower frame.

[0016] The beneficial effects of this invention are: 1. The present invention, through the structural design of the frame, adopts a combination design of a front frame and a rear frame, and the rear frame includes an upper frame and a lower frame. Through the cooperation of the adjustment mechanism and the limiting rod, the seeder has an adaptive adjustment function, which can automatically adjust the height according to the undulation of the field surface, local depressions or protrusions, etc., to ensure the relative height stability between the sowing mechanism and the field surface, thereby making the sowing depth uniform. 2. The fertilizer box of the present invention is provided with a groove, a conveying auger and a first sleeve at the bottom, which is conducive to the precise delivery and uniform spreading of fertilizer, avoids the accumulation and blockage of fertilizer during the delivery process, and improves the fertilization efficiency and uniformity; and the fertilizer mechanism of the present invention effectively reduces the height of the fertilizer box, making it convenient to add fertilizer to the fertilizer box.

[0017] 3. This invention adjustably mounts the sowing and pressing mechanisms on the frame, allowing for different row spacings to be achieved according to the planting row spacing requirements of different crops. Furthermore, the invention incorporates rubber sheets on the surface of the pressing wheel to effectively prevent slippage during the pressing process. Simultaneously, during wetland sowing, the ends of the rubber sheets, rotating with the pressing wheel, clean the soil adhering to the wheel, preventing the seeds from being carried away by the soil and affecting the uniformity of crop emergence and lodging resistance.

[0018] 4. The multi-functional integrated seeder of the present invention integrates multiple functions such as tilling, ditching, sowing, fertilizing, covering, and compacting, which significantly improves the sowing efficiency and operation quality of crops; at the same time, its compact structure, reasonable design, and simple operation improve the sowing efficiency of crops. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the mechanism from another perspective of the present invention.

[0021] Figure 3 This is a top view of the present invention.

[0022] Figure 4 This is a side view of the present invention.

[0023] Figure 5 This is the front view of the present invention.

[0024] Figure 6 yes Figure 1 An enlarged view of the local structure A.

[0025] Figure 7 yes Figure 4 An enlarged view of the local structure B.

[0026] Explanation of reference numerals in the attached figures: 1. Frame; 11. Front frame; 12. Rear frame; 121. Upper frame; 122. Lower frame; 2. Rotary tillage mechanism; 3. Fertilization mechanism; 31. Fertilizer box; 32. Conveying auger; 33. Groove; 34. Discharge port; 35. First sleeve; 4. Seeding mechanism; 41. Seeder; 42. First connecting seat; 43. First connecting rod; 44. Double-disc furrow opener; 5. Pressing mechanism; 51. Pressing wheel; 52. Second connecting seat; 53. Rubber sheet; 54. Second connecting rod; 6. Adjusting mechanism; 61. First adjusting rod; 62. Second sleeve; 63. Telescopic spring; 7. Limiting rod; 8. Second adjusting rod; 9. Lateral limit seat; 10. Furrowing mechanism; 13. Plow plate. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0028] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] like Figures 1-7 As shown, a multi-functional integrated seeder in this embodiment includes a frame, and the frame is provided with a rotary tillage mechanism 2, a fertilization mechanism 3, a sowing mechanism 4, a compaction mechanism 5, and a furrowing mechanism 10; Rotary tillage mechanism 2 is located at the front end of the frame, which refers to the end connected to the power mechanism such as a tractor or drive unit. Rotary tillage mechanism 2 includes a rotary tillage shaft, which is rotatably connected to the frame. Rotary tillage mechanism 2 is current technology and will not be described in detail here. The fertilization mechanism 3, located above the rotary tillage mechanism 2, includes a fertilizer box 31 and a conveying auger 32. The conveying auger 32 is connected to a first drive motor. The bottom of the fertilizer box 31 has a groove 33 aligned with its length. Preferably, the groove 33 has an arc-shaped cross-section. The conveying auger 32 is located within the groove 33. Along the length of the groove 33, the bottom of the groove 33 has several discharge ports 34. Above each discharge port 34 is a first sleeve 35. The first sleeves 35 are spaced apart, i.e., adjacent first sleeves 35 are spaced apart. A notch is provided between the 5 sections, and the groove 33 communicates with the interior of the fertilizer bin 31. The first sleeve 35 is spaced apart, allowing fertilizer from the fertilizer bin 31 to enter the groove 33, whereby it is discharged from the outlet 34 under the action of the conveying auger 32. The first sleeve 35 is located outside the conveying auger 32, forming a conveying channel with the groove 33. This conveying channel helps to break up large fertilizer particles that could clog the outlet 34, preventing blockage. The conveying auger 32 has a diameter of 10-20 cm, and the diameter of the first sleeve 35 is 1-1.3 times, preferably 1.1 times, the diameter of the conveying auger 32. This smaller diameter conveying auger 32 reduces the volume of the fertilizer mechanism and facilitates the crushing of large fertilizer particles by the conveying auger 32 in conjunction with the first sleeve 35. The conveying auger 32 of this invention rotates under the action of a drive motor, which can evenly convey the fertilizer in the fertilizer box 31 through the discharge port 34. The design of the first sleeve 35 corresponding to each discharge port 34 allows the conveying auger 32 and the first sleeve 35 to work together on large-particle fertilizer, preventing the fertilizer from clogging during the conveying process and ensuring the uniformity and accuracy of fertilization. At the same time, the design of the fertilization mechanism 3 of this invention helps to reduce the monitoring settings of the fertilizer discharge port 34 and lower the height of the fertilizer box 31, thereby facilitating the feeding and addition of fertilizer. The sowing mechanism 4 is located in the middle of the frame and is connected to the frame via a first connecting rod 43. The sowing mechanism 4 includes several first connecting seats 42 and sowers 41. Each sower 41 is equipped with a second drive mechanism to realize the sowing operation of the sower 41. The first connecting seats 42 are movably connected to the first connecting rods 43. The first connecting seats 42 are equipped with a locking mechanism A, which can be a locking bolt, for locking and fixing the first connecting seats 42 to facilitate the adjustment of the spacing between multiple sowers 41. Preferably, the first connecting rod 43 is a square rod. The sowers 41 are fixedly connected to the first connecting seats 42. The seeds to be sown are placed in the sowers 41. The sowers 41 can be existing precision seed meters, such as spoon wheel seed meters or disc seed meters. In order to facilitate the adjustment of the spacing between the sowers 41, the first drive mechanism is a motor, that is, each precision seed meter is equipped with a motor, which drives the spoon wheel of the spoon wheel seed meter or the disc of the disc seed meter to rotate, thereby realizing sowing.

[0031] The compaction mechanism 5 is located at the rear end of the frame. After the seeding mechanism 4 sows the seeds, the compaction mechanism 5 compacts and covers the soil. It is connected to the frame via a second connecting rod 54. The compaction mechanism 5 includes a second connecting seat 52 and a compaction wheel 51 connected to the second connecting seat 52. The compaction wheel 51 is correspondingly arranged with the seeder 41. The second connecting seat 52 is movably connected to the second connecting rod 54. The first connecting seat 42 is provided with a locking mechanism B, which can be a locking bolt, for locking and fixing the second connecting seat 52 and the second connecting rod 54, facilitating adjustment of the distance between the two compaction wheels 51. Preferably, the second connecting rod 54 is a square rod. Along the circumference of the compaction wheel 51, a plurality of rubber sheets 53 are provided on the surface of the compaction wheel 51. One end of the rubber sheet 53 is fixedly connected to the compaction wheel 51, and the other end is along the circumference of the compaction wheel 51. The rubber sheet 53 is attached to the surface of the press wheel 51. The length of the rubber sheet 53 is 0.8-1.8 times the radius of the press wheel 51. The rubber sheet 53 has a certain length so that after the rubber sheet 53 is attached to the surface of the press wheel 51, the end of the rubber sheet 53 forms uneven teeth on the surface of the press wheel 51, which effectively prevents the press wheel 51 from slipping. At the same time, during the movement of the seeder, the free end of the rubber sheet 53 can be thrown out and beat the ground by the centrifugal force of the rotating press wheel 51, thereby cleaning the soil adhering to the surface of the press wheel 51. Especially when the field is wet, it can prevent the surface of the press wheel 51 from sticking with mud. The surface of the rubber sheet 53 is provided with soil discharge patterns, preferably in a herringbone or wavy pattern. This design prevents soil from sticking, especially under wet or dry soil conditions. While ensuring the compaction effect, it prevents the soil from sticking the freshly sown seeds, which would affect the sowing efficiency and effect.

[0032] The ditching mechanism 10 is located on both sides of the frame. The ditching mechanism 10 includes a front plow and a rear plow. The front plow is located at the front section of the frame and can perform preliminary tillage of the soil to create good soil conditions for subsequent sowing and fertilization. The rear plow is located at the rear section of the frame and is used to dig furrows between planting rows.

[0033] A double-disc furrow opener 44 is provided below the seeder 41. The discharge port 34 of the seeder 41 is located between the two discs of the double-disc furrow opener 44. The double-disc furrow opener 44 is fixedly connected to the first connecting seat 42. During sowing, the double-disc furrow opener 44 first contacts the soil, pushing the soil to both sides to form a sowing furrow. The seeder 41 then sows the seeds, which are accurately sown into the sowing furrow through the double-disc furrow opener 44.

[0034] Two sets of fertilization mechanisms 3 are symmetrically arranged along the width direction of the frame, i.e., the width direction of the planting row. The fertilization mechanisms 3 are inclined at an angle of less than 15°. Preferably, the end of the fertilization mechanism 3 near the outer side of the frame is lower and the end near the middle of the frame is higher. The conveying auger 32 conveys the fertilizer from the lower end to the upper end of the fertilizer box 31. This design allows the fertilizer to flow better under the action of gravity during the conveying process, avoiding uneven accumulation of fertilizer in the fertilizer box 31. Under the conveying action of the auger 32, the continuity and stability of fertilization are ensured.

[0035] The frame includes a front frame 11 and a rear frame 12, with the rear frame 12 fixedly connected to the front frame 11. The rotary tillage mechanism 2, the fertilization mechanism 3, and the front plow are connected to the front frame 11. A scraper is installed below the front frame 11 to level the soil after rotary tillage. The sowing mechanism 4, the compaction mechanism 5, and the rear plow are connected to the rear frame 12. This design of the front frame 11 and the rear frame 12 can improve the adaptability of the seeder. By adjusting the relative position or angle of the front frame 11 and the rear frame 12, the working state of each mechanism can be optimized, ensuring that seeds can be sown into the soil at a suitable depth under different field conditions. This helps to ensure the consistency of seed sowing depth, thereby ensuring planting and germination effects.

[0036] Along the width direction of the frame, two sets of rear frames 12 are symmetrically arranged. Each rear frame 12 includes an upper frame 121 and a lower frame 122. One end of the upper frame 121 is fixedly connected to the front frame 11, and the other end is movably connected to the upper part of the adjusting mechanism 6. One end of the lower frame 122 is movably connected to the front frame 11, and the other end is movably connected to the lower part of the adjusting mechanism 6. Plow plates are provided on the inner sides of the two sets of rear frames 12 (the side where the two rear frames 12 are close to each other). The length direction of the plow plates is perpendicular to the width direction of the frame, and the two plow plates form a V-shaped structure for creating narrow furrows between planting rows. This invention uses two or more sets of rear frames 12, which is beneficial for forming wider planting rows. The plow plates between the two rear frames 12 allow for the formation of narrow furrows in the large planting rows or ridges, facilitating drainage in the wider planting rows, thereby improving the germination or survival rate of the plants, increasing the planting volume in the field, and increasing yield.

[0037] like Figure 7 As shown, the adjustment mechanism 6 includes a first adjusting rod 61, a second sleeve 62, and a telescopic spring 63. The telescopic spring 63 is sleeved on the outside of the first adjusting rod 61. The second sleeve 62 is sleeved on one end of the first adjusting rod 61 and connected to the upper frame 121. The lower end of the first adjusting rod 61 is hinged to the lower frame 122. The function of the adjustment mechanism 6 is to adjust the height of the rear frame 12 relative to the front frame 11 by moving the first adjusting rod 61 up and down within the second sleeve 62 and by the elastic action of the telescopic spring 63 when the field surface is uneven.

[0038] A limiting rod 7 is provided on the outer side of the rear frame 12. The upper end of the limiting rod 7 is adjustablely connected to the upper frame 121, and the lower end of the limiting rod 7 is hinged to the lower frame 122. The function of the limiting rod 7 is to limit the range of movement of the rear frame 12, preventing excessive vertical movement during adjustment and ensuring the structural stability of the entire seeder. Through the adjustable connection design, the length or angle of the limiting rod 7 can be adjusted according to actual needs, matching the structure of the rear frame 12 to adapt to adjustment requirements under different field conditions. Preferably, the limiting rod is a screw. The upper frame 121 is hinged to a connecting block, and the upper end of the screw is sleeved in the connecting block. The upper and lower nuts are threadedly connected to the limiting rod through the upper and lower nuts, respectively, located on the upper and lower sides of the connecting block, to achieve adjustment and fixation of the screw.

[0039] When encountering uneven field surfaces, the adjusting mechanism 6 and the limiting rod 7 work together with the upper frame 121 and the lower frame 122 to ensure that the double-disc ditcher 44 maintains an appropriate and consistent ditching depth. Specifically, when the field surface rises and falls, the front ends of the upper frame 121 and the lower frame 122 rise and the rear ends fall, and the height of the double-disc furrow opener 44 also rises accordingly. At this time, the first adjusting rod 61 slides upward within the second sleeve 62, and the telescopic spring 63 is compressed by the end of the upper frame 121. Since the first adjusting rod 61 is hinged to the lower frame 122, and the limiting rod 7 is hinged to both the upper and lower frames 121, the quadrilateral structure formed by the first adjusting rod 61, the upper frame 121, the lower frame 122, and the limiting rod 7 deforms, causing the double-disc furrow opener 44 to fall appropriately, preventing it from rising too high and failing to open furrows or opening furrows that are too shallow. Conversely, when the field surface falls and falls, it prevents the double-disc furrow opener 44 from falling too low and opening furrows that are too deep. This design allows the seeder to flexibly adapt to field surfaces of different heights, thereby ensuring consistent seed sowing depth and guaranteeing consistent sowing quality and germination rate.

[0040] like Figure 1 and Figure 7 As shown, the second connecting rod 54 is connected to the lower frame 122, and the first connecting rod 43 is connected to the lower frame 122 through the second adjusting rod 8, which facilitates the adjustment of the height of the sowing mechanism 4, so that the sowing mechanism 4 maintains an appropriate distance from the soil, thereby ensuring that the seeds can be accurately sown into the soil, avoiding the problem of sowing too deep or too shallow due to the slope of the field, improving the uniformity of sowing and the germination rate, and ensuring that the sowing mechanism 4 can maintain a suitable sowing depth under different field slopes.

[0041] like Figure 1 and Figure 3 As shown, the front frame 11 is equipped with a lateral limiting seat 9 to limit the movement of the lower frame 122 in the width (planting row width) direction of the frame 1. The lateral limiting seat 9 is movably connected to the middle of the lower frame 122. Preferably, the lateral limiting seat 9 is provided with a slot, and the lower frame 122 is provided with a T-shaped connecting rod. The T-shaped connecting rod passes through the slot and connects to the lower frame 122, thereby enabling the lower frame to move while ensuring the limitation of the lower frame in the width direction of the frame. This design helps to ensure that during the operation of the seeder, the lower frame 122 will not shift in the width direction of the frame due to external forces or uneven field surface, thereby ensuring the operational stability and sowing accuracy of the seeder, as well as the accuracy and consistency of the narrow furrow width in the middle of the ridge, providing good conditions for crop growth.

[0042] Finally, 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 the scope of protection of the present invention. 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 essence and scope of the technical solutions of the present invention.

Claims

1. A multi-functional integrated seeder, characterized in that: Includes a frame (1), the frame (1) includes a front frame (11) and a rear frame (12), the rear frame (12) includes an upper frame (121) and a lower frame (122), one end of the upper frame (121) is fixedly connected to the front frame (11), and the other end is movably connected to the upper part of the adjustment mechanism (6), one end of the lower frame (122) is movably connected to the front frame (11), and the other end is movably connected to the lower part of the adjustment mechanism (6); Rotary tillage mechanism (2) is connected to the front frame (11); The fertilization mechanism (3) is connected to the front frame (11) and is located above the rotary tillage mechanism (2); The sowing mechanism (4) is connected to the lower frame (122) via a first connecting rod (43). The sowing mechanism (4) includes a plurality of seeders (41) and a first connecting seat (42) for fixing the seeders (41). The first connecting seat (42) is movably connected to the first connecting rod (43). The pressing mechanism (5) is connected to the lower frame (122) via the second connecting rod (54). The pressing mechanism (5) includes a plurality of pressing wheels (51) and a second connecting seat (52) for fixing the pressing wheels (51). The pressing wheels (51) are correspondingly arranged with the seeder (41). The second connecting seat (52) is movably connected to the second connecting rod (54). The trenching mechanism (10) is located on both sides of the frame (1); The adjustment mechanism (6) includes a first adjustment rod (61), a second sleeve (62) and a telescopic spring (63). The telescopic spring (63) is sleeved on the outside of the first adjustment rod (61). The second sleeve (62) is sleeved on one end of the first adjustment rod (61) and hinged to the upper frame (121). The lower end of the first adjustment rod (61) is hinged to the lower frame (122). A limiting rod (7) is provided on the outside of the rear frame (12). The upper end of the limiting rod (7) is adjustablely connected to the upper frame (121), and the lower end of the limiting rod (7) is hinged to the lower frame (122).

2. The multi-functional integrated seeder according to claim 1, characterized in that: The fertilization mechanism includes a fertilizer box (31) and a conveying auger (32). The bottom of the fertilizer box (31) is provided with a groove (33) that is consistent with the length direction of the fertilizer box (31). The conveying auger (32) is located in the groove (33). The bottom of the groove (33) is provided with a plurality of discharge ports (34). Above the conveying auger (32) are a plurality of spaced first sleeves (35), and the first sleeves (35) are corresponding to the discharge ports (34).

3. The multi-functional integrated seeder according to claim 1, characterized in that: Along the circumferential direction of the press wheel (51), a plurality of rubber sheets (53) are provided on the surface of the press wheel (51). One end of the rubber sheet (53) is fixedly connected to the press wheel (51), and the other end is attached to the surface of the press wheel (51) along the circumferential direction of the press wheel (51). The length of the rubber sheet (51) is 0.8-1.8 times the radius of the press wheel (51).

4. The multi-functional integrated seeder according to claim 1, characterized in that: A double-disc furrow opener (44) is provided below the seeder (41). The discharge port of the seeder (41) is located between the two discs of the double-disc furrow opener (44). The double-disc furrow opener (44) is fixedly connected to the first connecting seat (42).

5. A multi-functional integrated seeder according to claim 2, characterized in that: The fertilizer application mechanism (3) is symmetrically arranged in two sets. Along the width direction of the frame (1), the fertilizer application mechanism (3) is inclined with an inclination angle of less than 15°.

6. A multi-functional integrated seeder according to claim 2, characterized in that: The diameter of the conveying auger (32) is 10-20cm, and the diameter of the first sleeve (35) is 1-1.3 times the outer diameter of the conveying auger (32).

7. A multi-functional integrated seeder according to claim 1, characterized in that: Along the width direction of the frame (1), two sets of rear frames (12) are symmetrically arranged, and plow plates (13) are arranged on the inner side of the two sets of rear frames (122).

8. A multi-functional integrated seeder according to claim 1, characterized in that: The second connecting rod (54) is connected to the lower frame (122), and the first connecting rod (43) is connected to the lower frame (122) through the second adjusting rod (8); the front frame (11) is provided with a lateral limiting seat (9) to limit the movement of the lower frame (122) in the width direction of the frame (1), and the lateral limiting seat (9) is movably connected to the lower frame (122).

Images